From 0b9f665205c36306f5433de78df3aebf08b53082 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Tue, 10 Jun 2014 20:59:03 +0200 Subject: update to 3.15, rb532 pci patch no longer required --- .../linux/patches/3.15-rc7/bsd-compatibility.patch | 2538 --- target/linux/patches/3.15-rc7/cleankernel.patch | 11 - target/linux/patches/3.15-rc7/defaults.patch | 46 - .../linux/patches/3.15-rc7/disable-netfilter.patch | 160 - .../patches/3.15-rc7/export-symbol-for-exmap.patch | 11 - target/linux/patches/3.15-rc7/gemalto.patch | 11 - .../patches/3.15-rc7/initramfs-nosizelimit.patch | 57 - target/linux/patches/3.15-rc7/lemote-rfkill.patch | 21 - target/linux/patches/3.15-rc7/microblaze-axi.patch | 11 - .../patches/3.15-rc7/microblaze-ethernet.patch | 11 - target/linux/patches/3.15-rc7/mkpiggy.patch | 28 - target/linux/patches/3.15-rc7/mtd-rootfs.patch | 26 - target/linux/patches/3.15-rc7/nfsv3-tcp.patch | 12 - target/linux/patches/3.15-rc7/non-static.patch | 33 - target/linux/patches/3.15-rc7/patch-yaffs2 | 16551 ------------------- .../patches/3.15-rc7/ppc64-missing-zlib.patch | 11 - target/linux/patches/3.15-rc7/relocs.patch | 2709 --- target/linux/patches/3.15-rc7/sgidefs.patch | 18 - target/linux/patches/3.15-rc7/sortext.patch | 33 - target/linux/patches/3.15-rc7/startup.patch | 37 - target/linux/patches/3.15-rc7/tcp-fastopen.patch | 2082 --- target/linux/patches/3.15-rc7/uuid.patch | 263 - target/linux/patches/3.15-rc7/wlan-cf.patch | 11 - target/linux/patches/3.15-rc7/xargs.patch | 12 - .../linux/patches/3.15-rc8/bsd-compatibility.patch | 2538 +++ target/linux/patches/3.15-rc8/cleankernel.patch | 11 + target/linux/patches/3.15-rc8/defaults.patch | 46 + .../linux/patches/3.15-rc8/disable-netfilter.patch | 160 + .../patches/3.15-rc8/export-symbol-for-exmap.patch | 11 + target/linux/patches/3.15-rc8/gemalto.patch | 11 + .../patches/3.15-rc8/initramfs-nosizelimit.patch | 57 + target/linux/patches/3.15-rc8/lemote-rfkill.patch | 21 + target/linux/patches/3.15-rc8/microblaze-axi.patch | 11 + .../patches/3.15-rc8/microblaze-ethernet.patch | 11 + target/linux/patches/3.15-rc8/mkpiggy.patch | 28 + target/linux/patches/3.15-rc8/mtd-rootfs.patch | 26 + target/linux/patches/3.15-rc8/nfsv3-tcp.patch | 12 + target/linux/patches/3.15-rc8/non-static.patch | 33 + target/linux/patches/3.15-rc8/patch-yaffs2 | 16551 +++++++++++++++++++ .../patches/3.15-rc8/ppc64-missing-zlib.patch | 11 + target/linux/patches/3.15-rc8/relocs.patch | 2709 +++ target/linux/patches/3.15-rc8/sgidefs.patch | 18 + target/linux/patches/3.15-rc8/sortext.patch | 33 + target/linux/patches/3.15-rc8/startup.patch | 37 + target/linux/patches/3.15-rc8/tcp-fastopen.patch | 2082 +++ target/linux/patches/3.15-rc8/uuid.patch | 263 + target/linux/patches/3.15-rc8/wlan-cf.patch | 11 + target/linux/patches/3.15-rc8/xargs.patch | 12 + 48 files changed, 24703 insertions(+), 24703 deletions(-) delete mode 100644 target/linux/patches/3.15-rc7/bsd-compatibility.patch delete mode 100644 target/linux/patches/3.15-rc7/cleankernel.patch delete mode 100644 target/linux/patches/3.15-rc7/defaults.patch delete mode 100644 target/linux/patches/3.15-rc7/disable-netfilter.patch delete mode 100644 target/linux/patches/3.15-rc7/export-symbol-for-exmap.patch delete mode 100644 target/linux/patches/3.15-rc7/gemalto.patch delete mode 100644 target/linux/patches/3.15-rc7/initramfs-nosizelimit.patch delete mode 100644 target/linux/patches/3.15-rc7/lemote-rfkill.patch delete mode 100644 target/linux/patches/3.15-rc7/microblaze-axi.patch delete mode 100644 target/linux/patches/3.15-rc7/microblaze-ethernet.patch delete mode 100644 target/linux/patches/3.15-rc7/mkpiggy.patch delete mode 100644 target/linux/patches/3.15-rc7/mtd-rootfs.patch delete mode 100644 target/linux/patches/3.15-rc7/nfsv3-tcp.patch delete mode 100644 target/linux/patches/3.15-rc7/non-static.patch delete mode 100644 target/linux/patches/3.15-rc7/patch-yaffs2 delete mode 100644 target/linux/patches/3.15-rc7/ppc64-missing-zlib.patch delete mode 100644 target/linux/patches/3.15-rc7/relocs.patch delete mode 100644 target/linux/patches/3.15-rc7/sgidefs.patch delete mode 100644 target/linux/patches/3.15-rc7/sortext.patch delete mode 100644 target/linux/patches/3.15-rc7/startup.patch delete mode 100644 target/linux/patches/3.15-rc7/tcp-fastopen.patch delete mode 100644 target/linux/patches/3.15-rc7/uuid.patch delete mode 100644 target/linux/patches/3.15-rc7/wlan-cf.patch delete mode 100644 target/linux/patches/3.15-rc7/xargs.patch create mode 100644 target/linux/patches/3.15-rc8/bsd-compatibility.patch create mode 100644 target/linux/patches/3.15-rc8/cleankernel.patch create mode 100644 target/linux/patches/3.15-rc8/defaults.patch create mode 100644 target/linux/patches/3.15-rc8/disable-netfilter.patch create mode 100644 target/linux/patches/3.15-rc8/export-symbol-for-exmap.patch create mode 100644 target/linux/patches/3.15-rc8/gemalto.patch create mode 100644 target/linux/patches/3.15-rc8/initramfs-nosizelimit.patch create mode 100644 target/linux/patches/3.15-rc8/lemote-rfkill.patch create mode 100644 target/linux/patches/3.15-rc8/microblaze-axi.patch create mode 100644 target/linux/patches/3.15-rc8/microblaze-ethernet.patch create mode 100644 target/linux/patches/3.15-rc8/mkpiggy.patch create mode 100644 target/linux/patches/3.15-rc8/mtd-rootfs.patch create mode 100644 target/linux/patches/3.15-rc8/nfsv3-tcp.patch create mode 100644 target/linux/patches/3.15-rc8/non-static.patch create mode 100644 target/linux/patches/3.15-rc8/patch-yaffs2 create mode 100644 target/linux/patches/3.15-rc8/ppc64-missing-zlib.patch create mode 100644 target/linux/patches/3.15-rc8/relocs.patch create mode 100644 target/linux/patches/3.15-rc8/sgidefs.patch create mode 100644 target/linux/patches/3.15-rc8/sortext.patch create mode 100644 target/linux/patches/3.15-rc8/startup.patch create mode 100644 target/linux/patches/3.15-rc8/tcp-fastopen.patch create mode 100644 target/linux/patches/3.15-rc8/uuid.patch create mode 100644 target/linux/patches/3.15-rc8/wlan-cf.patch create mode 100644 target/linux/patches/3.15-rc8/xargs.patch (limited to 'target/linux') diff --git a/target/linux/patches/3.15-rc7/bsd-compatibility.patch b/target/linux/patches/3.15-rc7/bsd-compatibility.patch deleted file mode 100644 index b954b658f..000000000 --- a/target/linux/patches/3.15-rc7/bsd-compatibility.patch +++ /dev/null @@ -1,2538 +0,0 @@ -diff -Nur linux-3.11.5.orig/scripts/Makefile.lib linux-3.11.5/scripts/Makefile.lib ---- linux-3.11.5.orig/scripts/Makefile.lib 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/scripts/Makefile.lib 2013-10-16 18:09:31.000000000 +0200 -@@ -281,7 +281,12 @@ - size_append = printf $(shell \ - dec_size=0; \ - for F in $1; do \ -- fsize=$$(stat -c "%s" $$F); \ -+ if stat -qs .>/dev/null 2>&1; then \ -+ statcmd='stat -f %z'; \ -+ else \ -+ statcmd='stat -c %s'; \ -+ fi; \ -+ fsize=$$($$statcmd $$F); \ - dec_size=$$(expr $$dec_size + $$fsize); \ - done; \ - printf "%08x\n" $$dec_size | \ -diff -Nur linux-3.11.5.orig/scripts/mod/mk_elfconfig.c linux-3.11.5/scripts/mod/mk_elfconfig.c ---- linux-3.11.5.orig/scripts/mod/mk_elfconfig.c 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/scripts/mod/mk_elfconfig.c 2013-10-16 18:09:31.000000000 +0200 -@@ -1,7 +1,18 @@ - #include - #include - #include --#include -+ -+#define EI_NIDENT (16) -+#define ELFMAG "\177ELF" -+ -+#define SELFMAG 4 -+#define EI_CLASS 4 -+#define ELFCLASS32 1 /* 32-bit objects */ -+#define ELFCLASS64 2 /* 64-bit objects */ -+ -+#define EI_DATA 5 /* Data encoding byte index */ -+#define ELFDATA2LSB 1 /* 2's complement, little endian */ -+#define ELFDATA2MSB 2 /* 2's complement, big endian */ - - int - main(int argc, char **argv) -diff -Nur linux-3.11.5.orig/scripts/mod/modpost.h linux-3.11.5/scripts/mod/modpost.h ---- linux-3.11.5.orig/scripts/mod/modpost.h 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/scripts/mod/modpost.h 2013-10-16 18:09:31.000000000 +0200 -@@ -7,7 +7,2453 @@ - #include - #include - #include --#include -+ -+ -+/* This file defines standard ELF types, structures, and macros. -+ Copyright (C) 1995-1999,2000,2001,2002,2003 Free Software Foundation, Inc. -+ This file is part of the GNU C Library. -+ -+ The GNU C Library is free software; you can redistribute it and/or -+ modify it under the terms of the GNU Lesser General Public -+ License as published by the Free Software Foundation; either -+ version 2.1 of the License, or (at your option) any later version. -+ -+ The GNU C Library is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should have received a copy of the GNU Lesser General Public -+ License along with the GNU C Library; if not, write to the Free -+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -+ 02111-1307 USA. */ -+ -+#ifndef _ELF_H -+#define _ELF_H 1 -+ -+__BEGIN_DECLS -+ -+/* Standard ELF types. */ -+ -+#include -+ -+/* Type for a 16-bit quantity. */ -+typedef uint16_t Elf32_Half; -+typedef uint16_t Elf64_Half; -+ -+/* Types for signed and unsigned 32-bit quantities. */ -+typedef uint32_t Elf32_Word; -+typedef int32_t Elf32_Sword; -+typedef uint32_t Elf64_Word; -+typedef int32_t Elf64_Sword; -+ -+/* Types for signed and unsigned 64-bit quantities. */ -+typedef uint64_t Elf32_Xword; -+typedef int64_t Elf32_Sxword; -+typedef uint64_t Elf64_Xword; -+typedef int64_t Elf64_Sxword; -+ -+/* Type of addresses. */ -+typedef uint32_t Elf32_Addr; -+typedef uint64_t Elf64_Addr; -+ -+/* Type of file offsets. */ -+typedef uint32_t Elf32_Off; -+typedef uint64_t Elf64_Off; -+ -+/* Type for section indices, which are 16-bit quantities. */ -+typedef uint16_t Elf32_Section; -+typedef uint16_t Elf64_Section; -+ -+/* Type for version symbol information. */ -+typedef Elf32_Half Elf32_Versym; -+typedef Elf64_Half Elf64_Versym; -+ -+ -+/* The ELF file header. This appears at the start of every ELF file. */ -+ -+#define EI_NIDENT (16) -+ -+typedef struct -+{ -+ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ -+ Elf32_Half e_type; /* Object file type */ -+ Elf32_Half e_machine; /* Architecture */ -+ Elf32_Word e_version; /* Object file version */ -+ Elf32_Addr e_entry; /* Entry point virtual address */ -+ Elf32_Off e_phoff; /* Program header table file offset */ -+ Elf32_Off e_shoff; /* Section header table file offset */ -+ Elf32_Word e_flags; /* Processor-specific flags */ -+ Elf32_Half e_ehsize; /* ELF header size in bytes */ -+ Elf32_Half e_phentsize; /* Program header table entry size */ -+ Elf32_Half e_phnum; /* Program header table entry count */ -+ Elf32_Half e_shentsize; /* Section header table entry size */ -+ Elf32_Half e_shnum; /* Section header table entry count */ -+ Elf32_Half e_shstrndx; /* Section header string table index */ -+} Elf32_Ehdr; -+ -+typedef struct -+{ -+ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ -+ Elf64_Half e_type; /* Object file type */ -+ Elf64_Half e_machine; /* Architecture */ -+ Elf64_Word e_version; /* Object file version */ -+ Elf64_Addr e_entry; /* Entry point virtual address */ -+ Elf64_Off e_phoff; /* Program header table file offset */ -+ Elf64_Off e_shoff; /* Section header table file offset */ -+ Elf64_Word e_flags; /* Processor-specific flags */ -+ Elf64_Half e_ehsize; /* ELF header size in bytes */ -+ Elf64_Half e_phentsize; /* Program header table entry size */ -+ Elf64_Half e_phnum; /* Program header table entry count */ -+ Elf64_Half e_shentsize; /* Section header table entry size */ -+ Elf64_Half e_shnum; /* Section header table entry count */ -+ Elf64_Half e_shstrndx; /* Section header string table index */ -+} Elf64_Ehdr; -+ -+/* Fields in the e_ident array. The EI_* macros are indices into the -+ array. The macros under each EI_* macro are the values the byte -+ may have. */ -+ -+#define EI_MAG0 0 /* File identification byte 0 index */ -+#define ELFMAG0 0x7f /* Magic number byte 0 */ -+ -+#define EI_MAG1 1 /* File identification byte 1 index */ -+#define ELFMAG1 'E' /* Magic number byte 1 */ -+ -+#define EI_MAG2 2 /* File identification byte 2 index */ -+#define ELFMAG2 'L' /* Magic number byte 2 */ -+ -+#define EI_MAG3 3 /* File identification byte 3 index */ -+#define ELFMAG3 'F' /* Magic number byte 3 */ -+ -+/* Conglomeration of the identification bytes, for easy testing as a word. */ -+#define ELFMAG "\177ELF" -+#define SELFMAG 4 -+ -+#define EI_CLASS 4 /* File class byte index */ -+#define ELFCLASSNONE 0 /* Invalid class */ -+#define ELFCLASS32 1 /* 32-bit objects */ -+#define ELFCLASS64 2 /* 64-bit objects */ -+#define ELFCLASSNUM 3 -+ -+#define EI_DATA 5 /* Data encoding byte index */ -+#define ELFDATANONE 0 /* Invalid data encoding */ -+#define ELFDATA2LSB 1 /* 2's complement, little endian */ -+#define ELFDATA2MSB 2 /* 2's complement, big endian */ -+#define ELFDATANUM 3 -+ -+#define EI_VERSION 6 /* File version byte index */ -+ /* Value must be EV_CURRENT */ -+ -+#define EI_OSABI 7 /* OS ABI identification */ -+#define ELFOSABI_NONE 0 /* UNIX System V ABI */ -+#define ELFOSABI_SYSV 0 /* Alias. */ -+#define ELFOSABI_HPUX 1 /* HP-UX */ -+#define ELFOSABI_NETBSD 2 /* NetBSD. */ -+#define ELFOSABI_LINUX 3 /* Linux. */ -+#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ -+#define ELFOSABI_AIX 7 /* IBM AIX. */ -+#define ELFOSABI_IRIX 8 /* SGI Irix. */ -+#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ -+#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ -+#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ -+#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ -+#define ELFOSABI_ARM 97 /* ARM */ -+#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ -+ -+#define EI_ABIVERSION 8 /* ABI version */ -+ -+#define EI_PAD 9 /* Byte index of padding bytes */ -+ -+/* Legal values for e_type (object file type). */ -+ -+#define ET_NONE 0 /* No file type */ -+#define ET_REL 1 /* Relocatable file */ -+#define ET_EXEC 2 /* Executable file */ -+#define ET_DYN 3 /* Shared object file */ -+#define ET_CORE 4 /* Core file */ -+#define ET_NUM 5 /* Number of defined types */ -+#define ET_LOOS 0xfe00 /* OS-specific range start */ -+#define ET_HIOS 0xfeff /* OS-specific range end */ -+#define ET_LOPROC 0xff00 /* Processor-specific range start */ -+#define ET_HIPROC 0xffff /* Processor-specific range end */ -+ -+/* Legal values for e_machine (architecture). */ -+ -+#define EM_NONE 0 /* No machine */ -+#define EM_M32 1 /* AT&T WE 32100 */ -+#define EM_SPARC 2 /* SUN SPARC */ -+#define EM_386 3 /* Intel 80386 */ -+#define EM_68K 4 /* Motorola m68k family */ -+#define EM_88K 5 /* Motorola m88k family */ -+#define EM_860 7 /* Intel 80860 */ -+#define EM_MIPS 8 /* MIPS R3000 big-endian */ -+#define EM_S370 9 /* IBM System/370 */ -+#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */ -+ -+#define EM_PARISC 15 /* HPPA */ -+#define EM_VPP500 17 /* Fujitsu VPP500 */ -+#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ -+#define EM_960 19 /* Intel 80960 */ -+#define EM_PPC 20 /* PowerPC */ -+#define EM_PPC64 21 /* PowerPC 64-bit */ -+#define EM_S390 22 /* IBM S390 */ -+ -+#define EM_V800 36 /* NEC V800 series */ -+#define EM_FR20 37 /* Fujitsu FR20 */ -+#define EM_RH32 38 /* TRW RH-32 */ -+#define EM_RCE 39 /* Motorola RCE */ -+#define EM_ARM 40 /* ARM */ -+#define EM_FAKE_ALPHA 41 /* Digital Alpha */ -+#define EM_SH 42 /* Hitachi SH */ -+#define EM_SPARCV9 43 /* SPARC v9 64-bit */ -+#define EM_TRICORE 44 /* Siemens Tricore */ -+#define EM_ARC 45 /* Argonaut RISC Core */ -+#define EM_H8_300 46 /* Hitachi H8/300 */ -+#define EM_H8_300H 47 /* Hitachi H8/300H */ -+#define EM_H8S 48 /* Hitachi H8S */ -+#define EM_H8_500 49 /* Hitachi H8/500 */ -+#define EM_IA_64 50 /* Intel Merced */ -+#define EM_MIPS_X 51 /* Stanford MIPS-X */ -+#define EM_COLDFIRE 52 /* Motorola Coldfire */ -+#define EM_68HC12 53 /* Motorola M68HC12 */ -+#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ -+#define EM_PCP 55 /* Siemens PCP */ -+#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ -+#define EM_NDR1 57 /* Denso NDR1 microprocessor */ -+#define EM_STARCORE 58 /* Motorola Start*Core processor */ -+#define EM_ME16 59 /* Toyota ME16 processor */ -+#define EM_ST100 60 /* STMicroelectronic ST100 processor */ -+#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ -+#define EM_X86_64 62 /* AMD x86-64 architecture */ -+#define EM_PDSP 63 /* Sony DSP Processor */ -+ -+#define EM_FX66 66 /* Siemens FX66 microcontroller */ -+#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ -+#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ -+#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ -+#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ -+#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ -+#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ -+#define EM_SVX 73 /* Silicon Graphics SVx */ -+#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ -+#define EM_VAX 75 /* Digital VAX */ -+#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ -+#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ -+#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ -+#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ -+#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ -+#define EM_HUANY 81 /* Harvard University machine-independent object files */ -+#define EM_PRISM 82 /* SiTera Prism */ -+#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ -+#define EM_FR30 84 /* Fujitsu FR30 */ -+#define EM_D10V 85 /* Mitsubishi D10V */ -+#define EM_D30V 86 /* Mitsubishi D30V */ -+#define EM_V850 87 /* NEC v850 */ -+#define EM_M32R 88 /* Mitsubishi M32R */ -+#define EM_MN10300 89 /* Matsushita MN10300 */ -+#define EM_MN10200 90 /* Matsushita MN10200 */ -+#define EM_PJ 91 /* picoJava */ -+#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ -+#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ -+#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ -+#define EM_NUM 95 -+ -+/* If it is necessary to assign new unofficial EM_* values, please -+ pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the -+ chances of collision with official or non-GNU unofficial values. */ -+ -+#define EM_ALPHA 0x9026 -+ -+/* Legal values for e_version (version). */ -+ -+#define EV_NONE 0 /* Invalid ELF version */ -+#define EV_CURRENT 1 /* Current version */ -+#define EV_NUM 2 -+ -+/* Section header. */ -+ -+typedef struct -+{ -+ Elf32_Word sh_name; /* Section name (string tbl index) */ -+ Elf32_Word sh_type; /* Section type */ -+ Elf32_Word sh_flags; /* Section flags */ -+ Elf32_Addr sh_addr; /* Section virtual addr at execution */ -+ Elf32_Off sh_offset; /* Section file offset */ -+ Elf32_Word sh_size; /* Section size in bytes */ -+ Elf32_Word sh_link; /* Link to another section */ -+ Elf32_Word sh_info; /* Additional section information */ -+ Elf32_Word sh_addralign; /* Section alignment */ -+ Elf32_Word sh_entsize; /* Entry size if section holds table */ -+} Elf32_Shdr; -+ -+typedef struct -+{ -+ Elf64_Word sh_name; /* Section name (string tbl index) */ -+ Elf64_Word sh_type; /* Section type */ -+ Elf64_Xword sh_flags; /* Section flags */ -+ Elf64_Addr sh_addr; /* Section virtual addr at execution */ -+ Elf64_Off sh_offset; /* Section file offset */ -+ Elf64_Xword sh_size; /* Section size in bytes */ -+ Elf64_Word sh_link; /* Link to another section */ -+ Elf64_Word sh_info; /* Additional section information */ -+ Elf64_Xword sh_addralign; /* Section alignment */ -+ Elf64_Xword sh_entsize; /* Entry size if section holds table */ -+} Elf64_Shdr; -+ -+/* Special section indices. */ -+ -+#define SHN_UNDEF 0 /* Undefined section */ -+#define SHN_LORESERVE 0xff00 /* Start of reserved indices */ -+#define SHN_LOPROC 0xff00 /* Start of processor-specific */ -+#define SHN_HIPROC 0xff1f /* End of processor-specific */ -+#define SHN_LOOS 0xff20 /* Start of OS-specific */ -+#define SHN_HIOS 0xff3f /* End of OS-specific */ -+#define SHN_ABS 0xfff1 /* Associated symbol is absolute */ -+#define SHN_COMMON 0xfff2 /* Associated symbol is common */ -+#define SHN_XINDEX 0xffff /* Index is in extra table. */ -+#define SHN_HIRESERVE 0xffff /* End of reserved indices */ -+ -+/* Legal values for sh_type (section type). */ -+ -+#define SHT_NULL 0 /* Section header table entry unused */ -+#define SHT_PROGBITS 1 /* Program data */ -+#define SHT_SYMTAB 2 /* Symbol table */ -+#define SHT_STRTAB 3 /* String table */ -+#define SHT_RELA 4 /* Relocation entries with addends */ -+#define SHT_HASH 5 /* Symbol hash table */ -+#define SHT_DYNAMIC 6 /* Dynamic linking information */ -+#define SHT_NOTE 7 /* Notes */ -+#define SHT_NOBITS 8 /* Program space with no data (bss) */ -+#define SHT_REL 9 /* Relocation entries, no addends */ -+#define SHT_SHLIB 10 /* Reserved */ -+#define SHT_DYNSYM 11 /* Dynamic linker symbol table */ -+#define SHT_INIT_ARRAY 14 /* Array of constructors */ -+#define SHT_FINI_ARRAY 15 /* Array of destructors */ -+#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ -+#define SHT_GROUP 17 /* Section group */ -+#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ -+#define SHT_NUM 19 /* Number of defined types. */ -+#define SHT_LOOS 0x60000000 /* Start OS-specific */ -+#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ -+#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ -+#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ -+#define SHT_SUNW_move 0x6ffffffa -+#define SHT_SUNW_COMDAT 0x6ffffffb -+#define SHT_SUNW_syminfo 0x6ffffffc -+#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ -+#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ -+#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ -+#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ -+#define SHT_HIOS 0x6fffffff /* End OS-specific type */ -+#define SHT_LOPROC 0x70000000 /* Start of processor-specific */ -+#define SHT_HIPROC 0x7fffffff /* End of processor-specific */ -+#define SHT_LOUSER 0x80000000 /* Start of application-specific */ -+#define SHT_HIUSER 0x8fffffff /* End of application-specific */ -+ -+/* Legal values for sh_flags (section flags). */ -+ -+#define SHF_WRITE (1 << 0) /* Writable */ -+#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ -+#define SHF_EXECINSTR (1 << 2) /* Executable */ -+#define SHF_MERGE (1 << 4) /* Might be merged */ -+#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */ -+#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */ -+#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */ -+#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling -+ required */ -+#define SHF_GROUP (1 << 9) /* Section is member of a group. */ -+#define SHF_TLS (1 << 10) /* Section hold thread-local data. */ -+#define SHF_MASKOS 0x0ff00000 /* OS-specific. */ -+#define SHF_MASKPROC 0xf0000000 /* Processor-specific */ -+ -+/* Section group handling. */ -+#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */ -+ -+/* Symbol table entry. */ -+ -+typedef struct -+{ -+ Elf32_Word st_name; /* Symbol name (string tbl index) */ -+ Elf32_Addr st_value; /* Symbol value */ -+ Elf32_Word st_size; /* Symbol size */ -+ unsigned char st_info; /* Symbol type and binding */ -+ unsigned char st_other; /* Symbol visibility */ -+ Elf32_Section st_shndx; /* Section index */ -+} Elf32_Sym; -+ -+typedef struct -+{ -+ Elf64_Word st_name; /* Symbol name (string tbl index) */ -+ unsigned char st_info; /* Symbol type and binding */ -+ unsigned char st_other; /* Symbol visibility */ -+ Elf64_Section st_shndx; /* Section index */ -+ Elf64_Addr st_value; /* Symbol value */ -+ Elf64_Xword st_size; /* Symbol size */ -+} Elf64_Sym; -+ -+/* The syminfo section if available contains additional information about -+ every dynamic symbol. */ -+ -+typedef struct -+{ -+ Elf32_Half si_boundto; /* Direct bindings, symbol bound to */ -+ Elf32_Half si_flags; /* Per symbol flags */ -+} Elf32_Syminfo; -+ -+typedef struct -+{ -+ Elf64_Half si_boundto; /* Direct bindings, symbol bound to */ -+ Elf64_Half si_flags; /* Per symbol flags */ -+} Elf64_Syminfo; -+ -+/* Possible values for si_boundto. */ -+#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ -+#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ -+#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ -+ -+/* Possible bitmasks for si_flags. */ -+#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ -+#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ -+#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ -+#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy -+ loaded */ -+/* Syminfo version values. */ -+#define SYMINFO_NONE 0 -+#define SYMINFO_CURRENT 1 -+#define SYMINFO_NUM 2 -+ -+ -+/* How to extract and insert information held in the st_info field. */ -+ -+#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) -+#define ELF32_ST_TYPE(val) ((val) & 0xf) -+#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) -+ -+/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ -+#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) -+#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) -+#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) -+ -+/* Legal values for ST_BIND subfield of st_info (symbol binding). */ -+ -+#define STB_LOCAL 0 /* Local symbol */ -+#define STB_GLOBAL 1 /* Global symbol */ -+#define STB_WEAK 2 /* Weak symbol */ -+#define STB_NUM 3 /* Number of defined types. */ -+#define STB_LOOS 10 /* Start of OS-specific */ -+#define STB_HIOS 12 /* End of OS-specific */ -+#define STB_LOPROC 13 /* Start of processor-specific */ -+#define STB_HIPROC 15 /* End of processor-specific */ -+ -+/* Legal values for ST_TYPE subfield of st_info (symbol type). */ -+ -+#define STT_NOTYPE 0 /* Symbol type is unspecified */ -+#define STT_OBJECT 1 /* Symbol is a data object */ -+#define STT_FUNC 2 /* Symbol is a code object */ -+#define STT_SECTION 3 /* Symbol associated with a section */ -+#define STT_FILE 4 /* Symbol's name is file name */ -+#define STT_COMMON 5 /* Symbol is a common data object */ -+#define STT_TLS 6 /* Symbol is thread-local data object*/ -+#define STT_NUM 7 /* Number of defined types. */ -+#define STT_LOOS 10 /* Start of OS-specific */ -+#define STT_HIOS 12 /* End of OS-specific */ -+#define STT_LOPROC 13 /* Start of processor-specific */ -+#define STT_HIPROC 15 /* End of processor-specific */ -+ -+ -+/* Symbol table indices are found in the hash buckets and chain table -+ of a symbol hash table section. This special index value indicates -+ the end of a chain, meaning no further symbols are found in that bucket. */ -+ -+#define STN_UNDEF 0 /* End of a chain. */ -+ -+ -+/* How to extract and insert information held in the st_other field. */ -+ -+#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) -+ -+/* For ELF64 the definitions are the same. */ -+#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) -+ -+/* Symbol visibility specification encoded in the st_other field. */ -+#define STV_DEFAULT 0 /* Default symbol visibility rules */ -+#define STV_INTERNAL 1 /* Processor specific hidden class */ -+#define STV_HIDDEN 2 /* Sym unavailable in other modules */ -+#define STV_PROTECTED 3 /* Not preemptible, not exported */ -+ -+ -+/* Relocation table entry without addend (in section of type SHT_REL). */ -+ -+typedef struct -+{ -+ Elf32_Addr r_offset; /* Address */ -+ Elf32_Word r_info; /* Relocation type and symbol index */ -+} Elf32_Rel; -+ -+/* I have seen two different definitions of the Elf64_Rel and -+ Elf64_Rela structures, so we'll leave them out until Novell (or -+ whoever) gets their act together. */ -+/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ -+ -+typedef struct -+{ -+ Elf64_Addr r_offset; /* Address */ -+ Elf64_Xword r_info; /* Relocation type and symbol index */ -+} Elf64_Rel; -+ -+/* Relocation table entry with addend (in section of type SHT_RELA). */ -+ -+typedef struct -+{ -+ Elf32_Addr r_offset; /* Address */ -+ Elf32_Word r_info; /* Relocation type and symbol index */ -+ Elf32_Sword r_addend; /* Addend */ -+} Elf32_Rela; -+ -+typedef struct -+{ -+ Elf64_Addr r_offset; /* Address */ -+ Elf64_Xword r_info; /* Relocation type and symbol index */ -+ Elf64_Sxword r_addend; /* Addend */ -+} Elf64_Rela; -+ -+/* How to extract and insert information held in the r_info field. */ -+ -+#define ELF32_R_SYM(val) ((val) >> 8) -+#define ELF32_R_TYPE(val) ((val) & 0xff) -+#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) -+ -+#define ELF64_R_SYM(i) ((i) >> 32) -+#define ELF64_R_TYPE(i) ((i) & 0xffffffff) -+#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) -+ -+/* Program segment header. */ -+ -+typedef struct -+{ -+ Elf32_Word p_type; /* Segment type */ -+ Elf32_Off p_offset; /* Segment file offset */ -+ Elf32_Addr p_vaddr; /* Segment virtual address */ -+ Elf32_Addr p_paddr; /* Segment physical address */ -+ Elf32_Word p_filesz; /* Segment size in file */ -+ Elf32_Word p_memsz; /* Segment size in memory */ -+ Elf32_Word p_flags; /* Segment flags */ -+ Elf32_Word p_align; /* Segment alignment */ -+} Elf32_Phdr; -+ -+typedef struct -+{ -+ Elf64_Word p_type; /* Segment type */ -+ Elf64_Word p_flags; /* Segment flags */ -+ Elf64_Off p_offset; /* Segment file offset */ -+ Elf64_Addr p_vaddr; /* Segment virtual address */ -+ Elf64_Addr p_paddr; /* Segment physical address */ -+ Elf64_Xword p_filesz; /* Segment size in file */ -+ Elf64_Xword p_memsz; /* Segment size in memory */ -+ Elf64_Xword p_align; /* Segment alignment */ -+} Elf64_Phdr; -+ -+/* Legal values for p_type (segment type). */ -+ -+#define PT_NULL 0 /* Program header table entry unused */ -+#define PT_LOAD 1 /* Loadable program segment */ -+#define PT_DYNAMIC 2 /* Dynamic linking information */ -+#define PT_INTERP 3 /* Program interpreter */ -+#define PT_NOTE 4 /* Auxiliary information */ -+#define PT_SHLIB 5 /* Reserved */ -+#define PT_PHDR 6 /* Entry for header table itself */ -+#define PT_TLS 7 /* Thread-local storage segment */ -+#define PT_NUM 8 /* Number of defined types */ -+#define PT_LOOS 0x60000000 /* Start of OS-specific */ -+#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */ -+#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */ -+#define PT_LOSUNW 0x6ffffffa -+#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ -+#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */ -+#define PT_HISUNW 0x6fffffff -+#define PT_HIOS 0x6fffffff /* End of OS-specific */ -+#define PT_LOPROC 0x70000000 /* Start of processor-specific */ -+#define PT_HIPROC 0x7fffffff /* End of processor-specific */ -+ -+/* Legal values for p_flags (segment flags). */ -+ -+#define PF_X (1 << 0) /* Segment is executable */ -+#define PF_W (1 << 1) /* Segment is writable */ -+#define PF_R (1 << 2) /* Segment is readable */ -+#define PF_MASKOS 0x0ff00000 /* OS-specific */ -+#define PF_MASKPROC 0xf0000000 /* Processor-specific */ -+ -+/* Legal values for note segment descriptor types for core files. */ -+ -+#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ -+#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ -+#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ -+#define NT_PRXREG 4 /* Contains copy of prxregset struct */ -+#define NT_TASKSTRUCT 4 /* Contains copy of task structure */ -+#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */ -+#define NT_AUXV 6 /* Contains copy of auxv array */ -+#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */ -+#define NT_ASRS 8 /* Contains copy of asrset struct */ -+#define NT_PSTATUS 10 /* Contains copy of pstatus struct */ -+#define NT_PSINFO 13 /* Contains copy of psinfo struct */ -+#define NT_PRCRED 14 /* Contains copy of prcred struct */ -+#define NT_UTSNAME 15 /* Contains copy of utsname struct */ -+#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */ -+#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */ -+#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct*/ -+ -+/* Legal values for the note segment descriptor types for object files. */ -+ -+#define NT_VERSION 1 /* Contains a version string. */ -+ -+ -+/* Dynamic section entry. */ -+ -+typedef struct -+{ -+ Elf32_Sword d_tag; /* Dynamic entry type */ -+ union -+ { -+ Elf32_Word d_val; /* Integer value */ -+ Elf32_Addr d_ptr; /* Address value */ -+ } d_un; -+} Elf32_Dyn; -+ -+typedef struct -+{ -+ Elf64_Sxword d_tag; /* Dynamic entry type */ -+ union -+ { -+ Elf64_Xword d_val; /* Integer value */ -+ Elf64_Addr d_ptr; /* Address value */ -+ } d_un; -+} Elf64_Dyn; -+ -+/* Legal values for d_tag (dynamic entry type). */ -+ -+#define DT_NULL 0 /* Marks end of dynamic section */ -+#define DT_NEEDED 1 /* Name of needed library */ -+#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ -+#define DT_PLTGOT 3 /* Processor defined value */ -+#define DT_HASH 4 /* Address of symbol hash table */ -+#define DT_STRTAB 5 /* Address of string table */ -+#define DT_SYMTAB 6 /* Address of symbol table */ -+#define DT_RELA 7 /* Address of Rela relocs */ -+#define DT_RELASZ 8 /* Total size of Rela relocs */ -+#define DT_RELAENT 9 /* Size of one Rela reloc */ -+#define DT_STRSZ 10 /* Size of string table */ -+#define DT_SYMENT 11 /* Size of one symbol table entry */ -+#define DT_INIT 12 /* Address of init function */ -+#define DT_FINI 13 /* Address of termination function */ -+#define DT_SONAME 14 /* Name of shared object */ -+#define DT_RPATH 15 /* Library search path (deprecated) */ -+#define DT_SYMBOLIC 16 /* Start symbol search here */ -+#define DT_REL 17 /* Address of Rel relocs */ -+#define DT_RELSZ 18 /* Total size of Rel relocs */ -+#define DT_RELENT 19 /* Size of one Rel reloc */ -+#define DT_PLTREL 20 /* Type of reloc in PLT */ -+#define DT_DEBUG 21 /* For debugging; unspecified */ -+#define DT_TEXTREL 22 /* Reloc might modify .text */ -+#define DT_JMPREL 23 /* Address of PLT relocs */ -+#define DT_BIND_NOW 24 /* Process relocations of object */ -+#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ -+#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ -+#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ -+#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ -+#define DT_RUNPATH 29 /* Library search path */ -+#define DT_FLAGS 30 /* Flags for the object being loaded */ -+#define DT_ENCODING 32 /* Start of encoded range */ -+#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ -+#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ -+#define DT_NUM 34 /* Number used */ -+#define DT_LOOS 0x6000000d /* Start of OS-specific */ -+#define DT_HIOS 0x6ffff000 /* End of OS-specific */ -+#define DT_LOPROC 0x70000000 /* Start of processor-specific */ -+#define DT_HIPROC 0x7fffffff /* End of processor-specific */ -+#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ -+ -+/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the -+ Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's -+ approach. */ -+#define DT_VALRNGLO 0x6ffffd00 -+#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ -+#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ -+#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ -+#define DT_CHECKSUM 0x6ffffdf8 -+#define DT_PLTPADSZ 0x6ffffdf9 -+#define DT_MOVEENT 0x6ffffdfa -+#define DT_MOVESZ 0x6ffffdfb -+#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ -+#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting -+ the following DT_* entry. */ -+#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ -+#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ -+#define DT_VALRNGHI 0x6ffffdff -+#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ -+#define DT_VALNUM 12 -+ -+/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the -+ Dyn.d_un.d_ptr field of the Elf*_Dyn structure. -+ -+ If any adjustment is made to the ELF object after it has been -+ built these entries will need to be adjusted. */ -+#define DT_ADDRRNGLO 0x6ffffe00 -+#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ -+#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ -+#define DT_CONFIG 0x6ffffefa /* Configuration information. */ -+#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ -+#define DT_AUDIT 0x6ffffefc /* Object auditing. */ -+#define DT_PLTPAD 0x6ffffefd /* PLT padding. */ -+#define DT_MOVETAB 0x6ffffefe /* Move table. */ -+#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ -+#define DT_ADDRRNGHI 0x6ffffeff -+#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ -+#define DT_ADDRNUM 10 -+ -+/* The versioning entry types. The next are defined as part of the -+ GNU extension. */ -+#define DT_VERSYM 0x6ffffff0 -+ -+#define DT_RELACOUNT 0x6ffffff9 -+#define DT_RELCOUNT 0x6ffffffa -+ -+/* These were chosen by Sun. */ -+#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ -+#define DT_VERDEF 0x6ffffffc /* Address of version definition -+ table */ -+#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ -+#define DT_VERNEED 0x6ffffffe /* Address of table with needed -+ versions */ -+#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ -+#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ -+#define DT_VERSIONTAGNUM 16 -+ -+/* Sun added these machine-independent extensions in the "processor-specific" -+ range. Be compatible. */ -+#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ -+#define DT_FILTER 0x7fffffff /* Shared object to get values from */ -+#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) -+#define DT_EXTRANUM 3 -+ -+/* Values of `d_un.d_val' in the DT_FLAGS entry. */ -+#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */ -+#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */ -+#define DF_TEXTREL 0x00000004 /* Object contains text relocations */ -+#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */ -+#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */ -+ -+/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 -+ entry in the dynamic section. */ -+#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */ -+#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */ -+#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */ -+#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/ -+#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/ -+#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/ -+#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */ -+#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */ -+#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */ -+#define DF_1_TRANS 0x00000200 -+#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */ -+#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */ -+#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */ -+#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/ -+#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ -+#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ -+#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ -+ -+/* Flags for the feature selection in DT_FEATURE_1. */ -+#define DTF_1_PARINIT 0x00000001 -+#define DTF_1_CONFEXP 0x00000002 -+ -+/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */ -+#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */ -+#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not -+ generally available. */ -+ -+/* Version definition sections. */ -+ -+typedef struct -+{ -+ Elf32_Half vd_version; /* Version revision */ -+ Elf32_Half vd_flags; /* Version information */ -+ Elf32_Half vd_ndx; /* Version Index */ -+ Elf32_Half vd_cnt; /* Number of associated aux entries */ -+ Elf32_Word vd_hash; /* Version name hash value */ -+ Elf32_Word vd_aux; /* Offset in bytes to verdaux array */ -+ Elf32_Word vd_next; /* Offset in bytes to next verdef -+ entry */ -+} Elf32_Verdef; -+ -+typedef struct -+{ -+ Elf64_Half vd_version; /* Version revision */ -+ Elf64_Half vd_flags; /* Version information */ -+ Elf64_Half vd_ndx; /* Version Index */ -+ Elf64_Half vd_cnt; /* Number of associated aux entries */ -+ Elf64_Word vd_hash; /* Version name hash value */ -+ Elf64_Word vd_aux; /* Offset in bytes to verdaux array */ -+ Elf64_Word vd_next; /* Offset in bytes to next verdef -+ entry */ -+} Elf64_Verdef; -+ -+ -+/* Legal values for vd_version (version revision). */ -+#define VER_DEF_NONE 0 /* No version */ -+#define VER_DEF_CURRENT 1 /* Current version */ -+#define VER_DEF_NUM 2 /* Given version number */ -+ -+/* Legal values for vd_flags (version information flags). */ -+#define VER_FLG_BASE 0x1 /* Version definition of file itself */ -+#define VER_FLG_WEAK 0x2 /* Weak version identifier */ -+ -+/* Versym symbol index values. */ -+#define VER_NDX_LOCAL 0 /* Symbol is local. */ -+#define VER_NDX_GLOBAL 1 /* Symbol is global. */ -+#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */ -+#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */ -+ -+/* Auxialiary version information. */ -+ -+typedef struct -+{ -+ Elf32_Word vda_name; /* Version or dependency names */ -+ Elf32_Word vda_next; /* Offset in bytes to next verdaux -+ entry */ -+} Elf32_Verdaux; -+ -+typedef struct -+{ -+ Elf64_Word vda_name; /* Version or dependency names */ -+ Elf64_Word vda_next; /* Offset in bytes to next verdaux -+ entry */ -+} Elf64_Verdaux; -+ -+ -+/* Version dependency section. */ -+ -+typedef struct -+{ -+ Elf32_Half vn_version; /* Version of structure */ -+ Elf32_Half vn_cnt; /* Number of associated aux entries */ -+ Elf32_Word vn_file; /* Offset of filename for this -+ dependency */ -+ Elf32_Word vn_aux; /* Offset in bytes to vernaux array */ -+ Elf32_Word vn_next; /* Offset in bytes to next verneed -+ entry */ -+} Elf32_Verneed; -+ -+typedef struct -+{ -+ Elf64_Half vn_version; /* Version of structure */ -+ Elf64_Half vn_cnt; /* Number of associated aux entries */ -+ Elf64_Word vn_file; /* Offset of filename for this -+ dependency */ -+ Elf64_Word vn_aux; /* Offset in bytes to vernaux array */ -+ Elf64_Word vn_next; /* Offset in bytes to next verneed -+ entry */ -+} Elf64_Verneed; -+ -+ -+/* Legal values for vn_version (version revision). */ -+#define VER_NEED_NONE 0 /* No version */ -+#define VER_NEED_CURRENT 1 /* Current version */ -+#define VER_NEED_NUM 2 /* Given version number */ -+ -+/* Auxiliary needed version information. */ -+ -+typedef struct -+{ -+ Elf32_Word vna_hash; /* Hash value of dependency name */ -+ Elf32_Half vna_flags; /* Dependency specific information */ -+ Elf32_Half vna_other; /* Unused */ -+ Elf32_Word vna_name; /* Dependency name string offset */ -+ Elf32_Word vna_next; /* Offset in bytes to next vernaux -+ entry */ -+} Elf32_Vernaux; -+ -+typedef struct -+{ -+ Elf64_Word vna_hash; /* Hash value of dependency name */ -+ Elf64_Half vna_flags; /* Dependency specific information */ -+ Elf64_Half vna_other; /* Unused */ -+ Elf64_Word vna_name; /* Dependency name string offset */ -+ Elf64_Word vna_next; /* Offset in bytes to next vernaux -+ entry */ -+} Elf64_Vernaux; -+ -+ -+/* Legal values for vna_flags. */ -+#define VER_FLG_WEAK 0x2 /* Weak version identifier */ -+ -+ -+/* Auxiliary vector. */ -+ -+/* This vector is normally only used by the program interpreter. The -+ usual definition in an ABI supplement uses the name auxv_t. The -+ vector is not usually defined in a standard file, but it -+ can't hurt. We rename it to avoid conflicts. The sizes of these -+ types are an arrangement between the exec server and the program -+ interpreter, so we don't fully specify them here. */ -+ -+typedef struct -+{ -+ int a_type; /* Entry type */ -+ union -+ { -+ long int a_val; /* Integer value */ -+ void *a_ptr; /* Pointer value */ -+ void (*a_fcn) (void); /* Function pointer value */ -+ } a_un; -+} Elf32_auxv_t; -+ -+typedef struct -+{ -+ long int a_type; /* Entry type */ -+ union -+ { -+ long int a_val; /* Integer value */ -+ void *a_ptr; /* Pointer value */ -+ void (*a_fcn) (void); /* Function pointer value */ -+ } a_un; -+} Elf64_auxv_t; -+ -+/* Legal values for a_type (entry type). */ -+ -+#define AT_NULL 0 /* End of vector */ -+#define AT_IGNORE 1 /* Entry should be ignored */ -+#define AT_EXECFD 2 /* File descriptor of program */ -+#define AT_PHDR 3 /* Program headers for program */ -+#define AT_PHENT 4 /* Size of program header entry */ -+#define AT_PHNUM 5 /* Number of program headers */ -+#define AT_PAGESZ 6 /* System page size */ -+#define AT_BASE 7 /* Base address of interpreter */ -+#define AT_FLAGS 8 /* Flags */ -+#define AT_ENTRY 9 /* Entry point of program */ -+#define AT_NOTELF 10 /* Program is not ELF */ -+#define AT_UID 11 /* Real uid */ -+#define AT_EUID 12 /* Effective uid */ -+#define AT_GID 13 /* Real gid */ -+#define AT_EGID 14 /* Effective gid */ -+#define AT_CLKTCK 17 /* Frequency of times() */ -+ -+/* Some more special a_type values describing the hardware. */ -+#define AT_PLATFORM 15 /* String identifying platform. */ -+#define AT_HWCAP 16 /* Machine dependent hints about -+ processor capabilities. */ -+ -+/* This entry gives some information about the FPU initialization -+ performed by the kernel. */ -+#define AT_FPUCW 18 /* Used FPU control word. */ -+ -+/* Cache block sizes. */ -+#define AT_DCACHEBSIZE 19 /* Data cache block size. */ -+#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ -+#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ -+ -+/* A special ignored value for PPC, used by the kernel to control the -+ interpretation of the AUXV. Must be > 16. */ -+#define AT_IGNOREPPC 22 /* Entry should be ignored. */ -+ -+#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ -+ -+/* Pointer to the global system page used for system calls and other -+ nice things. */ -+#define AT_SYSINFO 32 -+#define AT_SYSINFO_EHDR 33 -+ -+ -+/* Note section contents. Each entry in the note section begins with -+ a header of a fixed form. */ -+ -+typedef struct -+{ -+ Elf32_Word n_namesz; /* Length of the note's name. */ -+ Elf32_Word n_descsz; /* Length of the note's descriptor. */ -+ Elf32_Word n_type; /* Type of the note. */ -+} Elf32_Nhdr; -+ -+typedef struct -+{ -+ Elf64_Word n_namesz; /* Length of the note's name. */ -+ Elf64_Word n_descsz; /* Length of the note's descriptor. */ -+ Elf64_Word n_type; /* Type of the note. */ -+} Elf64_Nhdr; -+ -+/* Known names of notes. */ -+ -+/* Solaris entries in the note section have this name. */ -+#define ELF_NOTE_SOLARIS "SUNW Solaris" -+ -+/* Note entries for GNU systems have this name. */ -+#define ELF_NOTE_GNU "GNU" -+ -+ -+/* Defined types of notes for Solaris. */ -+ -+/* Value of descriptor (one word) is desired pagesize for the binary. */ -+#define ELF_NOTE_PAGESIZE_HINT 1 -+ -+ -+/* Defined note types for GNU systems. */ -+ -+/* ABI information. The descriptor consists of words: -+ word 0: OS descriptor -+ word 1: major version of the ABI -+ word 2: minor version of the ABI -+ word 3: subminor version of the ABI -+*/ -+#define ELF_NOTE_ABI 1 -+ -+/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI -+ note section entry. */ -+#define ELF_NOTE_OS_LINUX 0 -+#define ELF_NOTE_OS_GNU 1 -+#define ELF_NOTE_OS_SOLARIS2 2 -+#define ELF_NOTE_OS_FREEBSD 3 -+ -+ -+/* Move records. */ -+typedef struct -+{ -+ Elf32_Xword m_value; /* Symbol value. */ -+ Elf32_Word m_info; /* Size and index. */ -+ Elf32_Word m_poffset; /* Symbol offset. */ -+ Elf32_Half m_repeat; /* Repeat count. */ -+ Elf32_Half m_stride; /* Stride info. */ -+} Elf32_Move; -+ -+typedef struct -+{ -+ Elf64_Xword m_value; /* Symbol value. */ -+ Elf64_Xword m_info; /* Size and index. */ -+ Elf64_Xword m_poffset; /* Symbol offset. */ -+ Elf64_Half m_repeat; /* Repeat count. */ -+ Elf64_Half m_stride; /* Stride info. */ -+} Elf64_Move; -+ -+/* Macro to construct move records. */ -+#define ELF32_M_SYM(info) ((info) >> 8) -+#define ELF32_M_SIZE(info) ((unsigned char) (info)) -+#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) -+ -+#define ELF64_M_SYM(info) ELF32_M_SYM (info) -+#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) -+#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) -+ -+ -+/* Motorola 68k specific definitions. */ -+ -+/* Values for Elf32_Ehdr.e_flags. */ -+#define EF_CPU32 0x00810000 -+ -+/* m68k relocs. */ -+ -+#define R_68K_NONE 0 /* No reloc */ -+#define R_68K_32 1 /* Direct 32 bit */ -+#define R_68K_16 2 /* Direct 16 bit */ -+#define R_68K_8 3 /* Direct 8 bit */ -+#define R_68K_PC32 4 /* PC relative 32 bit */ -+#define R_68K_PC16 5 /* PC relative 16 bit */ -+#define R_68K_PC8 6 /* PC relative 8 bit */ -+#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ -+#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ -+#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ -+#define R_68K_GOT32O 10 /* 32 bit GOT offset */ -+#define R_68K_GOT16O 11 /* 16 bit GOT offset */ -+#define R_68K_GOT8O 12 /* 8 bit GOT offset */ -+#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ -+#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ -+#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ -+#define R_68K_PLT32O 16 /* 32 bit PLT offset */ -+#define R_68K_PLT16O 17 /* 16 bit PLT offset */ -+#define R_68K_PLT8O 18 /* 8 bit PLT offset */ -+#define R_68K_COPY 19 /* Copy symbol at runtime */ -+#define R_68K_GLOB_DAT 20 /* Create GOT entry */ -+#define R_68K_JMP_SLOT 21 /* Create PLT entry */ -+#define R_68K_RELATIVE 22 /* Adjust by program base */ -+/* Keep this the last entry. */ -+#define R_68K_NUM 23 -+ -+/* Intel 80386 specific definitions. */ -+ -+/* i386 relocs. */ -+ -+#define R_386_NONE 0 /* No reloc */ -+#define R_386_32 1 /* Direct 32 bit */ -+#define R_386_PC32 2 /* PC relative 32 bit */ -+#define R_386_GOT32 3 /* 32 bit GOT entry */ -+#define R_386_PLT32 4 /* 32 bit PLT address */ -+#define R_386_COPY 5 /* Copy symbol at runtime */ -+#define R_386_GLOB_DAT 6 /* Create GOT entry */ -+#define R_386_JMP_SLOT 7 /* Create PLT entry */ -+#define R_386_RELATIVE 8 /* Adjust by program base */ -+#define R_386_GOTOFF 9 /* 32 bit offset to GOT */ -+#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ -+#define R_386_32PLT 11 -+#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ -+#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS -+ block offset */ -+#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block -+ offset */ -+#define R_386_TLS_LE 17 /* Offset relative to static TLS -+ block */ -+#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of -+ general dynamic thread local data */ -+#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of -+ local dynamic thread local data -+ in LE code */ -+#define R_386_16 20 -+#define R_386_PC16 21 -+#define R_386_8 22 -+#define R_386_PC8 23 -+#define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic -+ thread local data */ -+#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ -+#define R_386_TLS_GD_CALL 26 /* Relocation for call to -+ __tls_get_addr() */ -+#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ -+#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic -+ thread local data in LE code */ -+#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ -+#define R_386_TLS_LDM_CALL 30 /* Relocation for call to -+ __tls_get_addr() in LDM code */ -+#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ -+#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ -+#define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS -+ block offset */ -+#define R_386_TLS_LE_32 34 /* Negated offset relative to static -+ TLS block */ -+#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ -+#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ -+#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ -+/* Keep this the last entry. */ -+#define R_386_NUM 38 -+ -+/* SUN SPARC specific definitions. */ -+ -+/* Legal values for ST_TYPE subfield of st_info (symbol type). */ -+ -+#define STT_REGISTER 13 /* Global register reserved to app. */ -+ -+/* Values for Elf64_Ehdr.e_flags. */ -+ -+#define EF_SPARCV9_MM 3 -+#define EF_SPARCV9_TSO 0 -+#define EF_SPARCV9_PSO 1 -+#define EF_SPARCV9_RMO 2 -+#define EF_SPARC_LEDATA 0x800000 /* little endian data */ -+#define EF_SPARC_EXT_MASK 0xFFFF00 -+#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */ -+#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */ -+#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */ -+#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */ -+ -+/* SPARC relocs. */ -+ -+#define R_SPARC_NONE 0 /* No reloc */ -+#define R_SPARC_8 1 /* Direct 8 bit */ -+#define R_SPARC_16 2 /* Direct 16 bit */ -+#define R_SPARC_32 3 /* Direct 32 bit */ -+#define R_SPARC_DISP8 4 /* PC relative 8 bit */ -+#define R_SPARC_DISP16 5 /* PC relative 16 bit */ -+#define R_SPARC_DISP32 6 /* PC relative 32 bit */ -+#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ -+#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ -+#define R_SPARC_HI22 9 /* High 22 bit */ -+#define R_SPARC_22 10 /* Direct 22 bit */ -+#define R_SPARC_13 11 /* Direct 13 bit */ -+#define R_SPARC_LO10 12 /* Truncated 10 bit */ -+#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ -+#define R_SPARC_GOT13 14 /* 13 bit GOT entry */ -+#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ -+#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ -+#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ -+#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ -+#define R_SPARC_COPY 19 /* Copy symbol at runtime */ -+#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ -+#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ -+#define R_SPARC_RELATIVE 22 /* Adjust by program base */ -+#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ -+ -+/* Additional Sparc64 relocs. */ -+ -+#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */ -+#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */ -+#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */ -+#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */ -+#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */ -+#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */ -+#define R_SPARC_10 30 /* Direct 10 bit */ -+#define R_SPARC_11 31 /* Direct 11 bit */ -+#define R_SPARC_64 32 /* Direct 64 bit */ -+#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */ -+#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */ -+#define R_SPARC_HM10 35 /* High middle 10 bits of ... */ -+#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */ -+#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */ -+#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */ -+#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */ -+#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */ -+#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */ -+#define R_SPARC_7 43 /* Direct 7 bit */ -+#define R_SPARC_5 44 /* Direct 5 bit */ -+#define R_SPARC_6 45 /* Direct 6 bit */ -+#define R_SPARC_DISP64 46 /* PC relative 64 bit */ -+#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */ -+#define R_SPARC_HIX22 48 /* High 22 bit complemented */ -+#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */ -+#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */ -+#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */ -+#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */ -+#define R_SPARC_REGISTER 53 /* Global register usage */ -+#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */ -+#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */ -+#define R_SPARC_TLS_GD_HI22 56 -+#define R_SPARC_TLS_GD_LO10 57 -+#define R_SPARC_TLS_GD_ADD 58 -+#define R_SPARC_TLS_GD_CALL 59 -+#define R_SPARC_TLS_LDM_HI22 60 -+#define R_SPARC_TLS_LDM_LO10 61 -+#define R_SPARC_TLS_LDM_ADD 62 -+#define R_SPARC_TLS_LDM_CALL 63 -+#define R_SPARC_TLS_LDO_HIX22 64 -+#define R_SPARC_TLS_LDO_LOX10 65 -+#define R_SPARC_TLS_LDO_ADD 66 -+#define R_SPARC_TLS_IE_HI22 67 -+#define R_SPARC_TLS_IE_LO10 68 -+#define R_SPARC_TLS_IE_LD 69 -+#define R_SPARC_TLS_IE_LDX 70 -+#define R_SPARC_TLS_IE_ADD 71 -+#define R_SPARC_TLS_LE_HIX22 72 -+#define R_SPARC_TLS_LE_LOX10 73 -+#define R_SPARC_TLS_DTPMOD32 74 -+#define R_SPARC_TLS_DTPMOD64 75 -+#define R_SPARC_TLS_DTPOFF32 76 -+#define R_SPARC_TLS_DTPOFF64 77 -+#define R_SPARC_TLS_TPOFF32 78 -+#define R_SPARC_TLS_TPOFF64 79 -+/* Keep this the last entry. */ -+#define R_SPARC_NUM 80 -+ -+/* For Sparc64, legal values for d_tag of Elf64_Dyn. */ -+ -+#define DT_SPARC_REGISTER 0x70000001 -+#define DT_SPARC_NUM 2 -+ -+/* Bits present in AT_HWCAP, primarily for Sparc32. */ -+ -+#define HWCAP_SPARC_FLUSH 1 /* The cpu supports flush insn. */ -+#define HWCAP_SPARC_STBAR 2 -+#define HWCAP_SPARC_SWAP 4 -+#define HWCAP_SPARC_MULDIV 8 -+#define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */ -+#define HWCAP_SPARC_ULTRA3 32 -+ -+/* MIPS R3000 specific definitions. */ -+ -+/* Legal values for e_flags field of Elf32_Ehdr. */ -+ -+#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ -+#define EF_MIPS_PIC 2 /* Contains PIC code */ -+#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ -+#define EF_MIPS_XGOT 8 -+#define EF_MIPS_64BIT_WHIRL 16 -+#define EF_MIPS_ABI2 32 -+#define EF_MIPS_ABI_ON32 64 -+#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ -+ -+/* Legal values for MIPS architecture level. */ -+ -+#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ -+#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ -+#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ -+#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ -+#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ -+#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ -+#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ -+ -+/* The following are non-official names and should not be used. */ -+ -+#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ -+#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ -+#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ -+#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ -+#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ -+#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ -+#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ -+ -+/* Special section indices. */ -+ -+#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ -+#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ -+#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ -+#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ -+#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ -+ -+/* Legal values for sh_type field of Elf32_Shdr. */ -+ -+#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ -+#define SHT_MIPS_MSYM 0x70000001 -+#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ -+#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ -+#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ -+#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/ -+#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ -+#define SHT_MIPS_PACKAGE 0x70000007 -+#define SHT_MIPS_PACKSYM 0x70000008 -+#define SHT_MIPS_RELD 0x70000009 -+#define SHT_MIPS_IFACE 0x7000000b -+#define SHT_MIPS_CONTENT 0x7000000c -+#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ -+#define SHT_MIPS_SHDR 0x70000010 -+#define SHT_MIPS_FDESC 0x70000011 -+#define SHT_MIPS_EXTSYM 0x70000012 -+#define SHT_MIPS_DENSE 0x70000013 -+#define SHT_MIPS_PDESC 0x70000014 -+#define SHT_MIPS_LOCSYM 0x70000015 -+#define SHT_MIPS_AUXSYM 0x70000016 -+#define SHT_MIPS_OPTSYM 0x70000017 -+#define SHT_MIPS_LOCSTR 0x70000018 -+#define SHT_MIPS_LINE 0x70000019 -+#define SHT_MIPS_RFDESC 0x7000001a -+#define SHT_MIPS_DELTASYM 0x7000001b -+#define SHT_MIPS_DELTAINST 0x7000001c -+#define SHT_MIPS_DELTACLASS 0x7000001d -+#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ -+#define SHT_MIPS_DELTADECL 0x7000001f -+#define SHT_MIPS_SYMBOL_LIB 0x70000020 -+#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ -+#define SHT_MIPS_TRANSLATE 0x70000022 -+#define SHT_MIPS_PIXIE 0x70000023 -+#define SHT_MIPS_XLATE 0x70000024 -+#define SHT_MIPS_XLATE_DEBUG 0x70000025 -+#define SHT_MIPS_WHIRL 0x70000026 -+#define SHT_MIPS_EH_REGION 0x70000027 -+#define SHT_MIPS_XLATE_OLD 0x70000028 -+#define SHT_MIPS_PDR_EXCEPTION 0x70000029 -+ -+/* Legal values for sh_flags field of Elf32_Shdr. */ -+ -+#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ -+#define SHF_MIPS_MERGE 0x20000000 -+#define SHF_MIPS_ADDR 0x40000000 -+#define SHF_MIPS_STRINGS 0x80000000 -+#define SHF_MIPS_NOSTRIP 0x08000000 -+#define SHF_MIPS_LOCAL 0x04000000 -+#define SHF_MIPS_NAMES 0x02000000 -+#define SHF_MIPS_NODUPE 0x01000000 -+ -+ -+/* Symbol tables. */ -+ -+/* MIPS specific values for `st_other'. */ -+#define STO_MIPS_DEFAULT 0x0 -+#define STO_MIPS_INTERNAL 0x1 -+#define STO_MIPS_HIDDEN 0x2 -+#define STO_MIPS_PROTECTED 0x3 -+#define STO_MIPS_SC_ALIGN_UNUSED 0xff -+ -+/* MIPS specific values for `st_info'. */ -+#define STB_MIPS_SPLIT_COMMON 13 -+ -+/* Entries found in sections of type SHT_MIPS_GPTAB. */ -+ -+typedef union -+{ -+ struct -+ { -+ Elf32_Word gt_current_g_value; /* -G value used for compilation */ -+ Elf32_Word gt_unused; /* Not used */ -+ } gt_header; /* First entry in section */ -+ struct -+ { -+ Elf32_Word gt_g_value; /* If this value were used for -G */ -+ Elf32_Word gt_bytes; /* This many bytes would be used */ -+ } gt_entry; /* Subsequent entries in section */ -+} Elf32_gptab; -+ -+/* Entry found in sections of type SHT_MIPS_REGINFO. */ -+ -+typedef struct -+{ -+ Elf32_Word ri_gprmask; /* General registers used */ -+ Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ -+ Elf32_Sword ri_gp_value; /* $gp register value */ -+} Elf32_RegInfo; -+ -+/* Entries found in sections of type SHT_MIPS_OPTIONS. */ -+ -+typedef struct -+{ -+ unsigned char kind; /* Determines interpretation of the -+ variable part of descriptor. */ -+ unsigned char size; /* Size of descriptor, including header. */ -+ Elf32_Section section; /* Section header index of section affected, -+ 0 for global options. */ -+ Elf32_Word info; /* Kind-specific information. */ -+} Elf_Options; -+ -+/* Values for `kind' field in Elf_Options. */ -+ -+#define ODK_NULL 0 /* Undefined. */ -+#define ODK_REGINFO 1 /* Register usage information. */ -+#define ODK_EXCEPTIONS 2 /* Exception processing options. */ -+#define ODK_PAD 3 /* Section padding options. */ -+#define ODK_HWPATCH 4 /* Hardware workarounds performed */ -+#define ODK_FILL 5 /* record the fill value used by the linker. */ -+#define ODK_TAGS 6 /* reserve space for desktop tools to write. */ -+#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */ -+#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */ -+ -+/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */ -+ -+#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */ -+#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */ -+#define OEX_PAGE0 0x10000 /* page zero must be mapped. */ -+#define OEX_SMM 0x20000 /* Force sequential memory mode? */ -+#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */ -+#define OEX_PRECISEFP OEX_FPDBUG -+#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */ -+ -+#define OEX_FPU_INVAL 0x10 -+#define OEX_FPU_DIV0 0x08 -+#define OEX_FPU_OFLO 0x04 -+#define OEX_FPU_UFLO 0x02 -+#define OEX_FPU_INEX 0x01 -+ -+/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */ -+ -+#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */ -+#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */ -+#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */ -+#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */ -+ -+#define OPAD_PREFIX 0x1 -+#define OPAD_POSTFIX 0x2 -+#define OPAD_SYMBOL 0x4 -+ -+/* Entry found in `.options' section. */ -+ -+typedef struct -+{ -+ Elf32_Word hwp_flags1; /* Extra flags. */ -+ Elf32_Word hwp_flags2; /* Extra flags. */ -+} Elf_Options_Hw; -+ -+/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */ -+ -+#define OHWA0_R4KEOP_CHECKED 0x00000001 -+#define OHWA1_R4KEOP_CLEAN 0x00000002 -+ -+/* MIPS relocs. */ -+ -+#define R_MIPS_NONE 0 /* No reloc */ -+#define R_MIPS_16 1 /* Direct 16 bit */ -+#define R_MIPS_32 2 /* Direct 32 bit */ -+#define R_MIPS_REL32 3 /* PC relative 32 bit */ -+#define R_MIPS_26 4 /* Direct 26 bit shifted */ -+#define R_MIPS_HI16 5 /* High 16 bit */ -+#define R_MIPS_LO16 6 /* Low 16 bit */ -+#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ -+#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ -+#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ -+#define R_MIPS_PC16 10 /* PC relative 16 bit */ -+#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ -+#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ -+ -+#define R_MIPS_SHIFT5 16 -+#define R_MIPS_SHIFT6 17 -+#define R_MIPS_64 18 -+#define R_MIPS_GOT_DISP 19 -+#define R_MIPS_GOT_PAGE 20 -+#define R_MIPS_GOT_OFST 21 -+#define R_MIPS_GOT_HI16 22 -+#define R_MIPS_GOT_LO16 23 -+#define R_MIPS_SUB 24 -+#define R_MIPS_INSERT_A 25 -+#define R_MIPS_INSERT_B 26 -+#define R_MIPS_DELETE 27 -+#define R_MIPS_HIGHER 28 -+#define R_MIPS_HIGHEST 29 -+#define R_MIPS_CALL_HI16 30 -+#define R_MIPS_CALL_LO16 31 -+#define R_MIPS_SCN_DISP 32 -+#define R_MIPS_REL16 33 -+#define R_MIPS_ADD_IMMEDIATE 34 -+#define R_MIPS_PJUMP 35 -+#define R_MIPS_RELGOT 36 -+#define R_MIPS_JALR 37 -+/* Keep this the last entry. */ -+#define R_MIPS_NUM 38 -+ -+/* Legal values for p_type field of Elf32_Phdr. */ -+ -+#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ -+#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ -+#define PT_MIPS_OPTIONS 0x70000002 -+ -+/* Special program header types. */ -+ -+#define PF_MIPS_LOCAL 0x10000000 -+ -+/* Legal values for d_tag field of Elf32_Dyn. */ -+ -+#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ -+#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ -+#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ -+#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ -+#define DT_MIPS_FLAGS 0x70000005 /* Flags */ -+#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ -+#define DT_MIPS_MSYM 0x70000007 -+#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ -+#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ -+#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ -+#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ -+#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ -+#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ -+#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ -+#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ -+#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ -+#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ -+#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */ -+#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in -+ DT_MIPS_DELTA_CLASS. */ -+#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */ -+#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in -+ DT_MIPS_DELTA_INSTANCE. */ -+#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */ -+#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in -+ DT_MIPS_DELTA_RELOC. */ -+#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta -+ relocations refer to. */ -+#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in -+ DT_MIPS_DELTA_SYM. */ -+#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the -+ class declaration. */ -+#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in -+ DT_MIPS_DELTA_CLASSSYM. */ -+#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */ -+#define DT_MIPS_PIXIE_INIT 0x70000023 -+#define DT_MIPS_SYMBOL_LIB 0x70000024 -+#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 -+#define DT_MIPS_LOCAL_GOTIDX 0x70000026 -+#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 -+#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 -+#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */ -+#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */ -+#define DT_MIPS_DYNSTR_ALIGN 0x7000002b -+#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */ -+#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve -+ function stored in GOT. */ -+#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added -+ by rld on dlopen() calls. */ -+#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */ -+#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */ -+#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */ -+#define DT_MIPS_NUM 0x32 -+ -+/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */ -+ -+#define RHF_NONE 0 /* No flags */ -+#define RHF_QUICKSTART (1 << 0) /* Use quickstart */ -+#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ -+#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ -+#define RHF_NO_MOVE (1 << 3) -+#define RHF_SGI_ONLY (1 << 4) -+#define RHF_GUARANTEE_INIT (1 << 5) -+#define RHF_DELTA_C_PLUS_PLUS (1 << 6) -+#define RHF_GUARANTEE_START_INIT (1 << 7) -+#define RHF_PIXIE (1 << 8) -+#define RHF_DEFAULT_DELAY_LOAD (1 << 9) -+#define RHF_REQUICKSTART (1 << 10) -+#define RHF_REQUICKSTARTED (1 << 11) -+#define RHF_CORD (1 << 12) -+#define RHF_NO_UNRES_UNDEF (1 << 13) -+#define RHF_RLD_ORDER_SAFE (1 << 14) -+ -+/* Entries found in sections of type SHT_MIPS_LIBLIST. */ -+ -+typedef struct -+{ -+ Elf32_Word l_name; /* Name (string table index) */ -+ Elf32_Word l_time_stamp; /* Timestamp */ -+ Elf32_Word l_checksum; /* Checksum */ -+ Elf32_Word l_version; /* Interface version */ -+ Elf32_Word l_flags; /* Flags */ -+} Elf32_Lib; -+ -+typedef struct -+{ -+ Elf64_Word l_name; /* Name (string table index) */ -+ Elf64_Word l_time_stamp; /* Timestamp */ -+ Elf64_Word l_checksum; /* Checksum */ -+ Elf64_Word l_version; /* Interface version */ -+ Elf64_Word l_flags; /* Flags */ -+} Elf64_Lib; -+ -+ -+/* Legal values for l_flags. */ -+ -+#define LL_NONE 0 -+#define LL_EXACT_MATCH (1 << 0) /* Require exact match */ -+#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ -+#define LL_REQUIRE_MINOR (1 << 2) -+#define LL_EXPORTS (1 << 3) -+#define LL_DELAY_LOAD (1 << 4) -+#define LL_DELTA (1 << 5) -+ -+/* Entries found in sections of type SHT_MIPS_CONFLICT. */ -+ -+typedef Elf32_Addr Elf32_Conflict; -+ -+ -+/* HPPA specific definitions. */ -+ -+/* Legal values for e_flags field of Elf32_Ehdr. */ -+ -+#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */ -+#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */ -+#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */ -+#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */ -+#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch -+ prediction. */ -+#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */ -+#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. */ -+ -+/* Defined values for `e_flags & EF_PARISC_ARCH' are: */ -+ -+#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */ -+#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */ -+#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */ -+ -+/* Additional section indeces. */ -+ -+#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared -+ symbols in ANSI C. */ -+#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. */ -+ -+/* Legal values for sh_type field of Elf32_Shdr. */ -+ -+#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */ -+#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */ -+#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. */ -+ -+/* Legal values for sh_flags field of Elf32_Shdr. */ -+ -+#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ -+#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */ -+#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */ -+ -+/* Legal values for ST_TYPE subfield of st_info (symbol type). */ -+ -+#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ -+ -+#define STT_HP_OPAQUE (STT_LOOS + 0x1) -+#define STT_HP_STUB (STT_LOOS + 0x2) -+ -+/* HPPA relocs. */ -+ -+#define R_PARISC_NONE 0 /* No reloc. */ -+#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */ -+#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */ -+#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */ -+#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */ -+#define R_PARISC_DIR14R 6 /* Right 14 bits of eff. address. */ -+#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */ -+#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */ -+#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */ -+#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */ -+#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */ -+#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */ -+#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */ -+#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */ -+#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */ -+#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */ -+#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */ -+#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */ -+#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */ -+#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */ -+#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */ -+#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */ -+#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */ -+#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */ -+#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */ -+#define R_PARISC_FPTR64 64 /* 64 bits function address. */ -+#define R_PARISC_PLABEL32 65 /* 32 bits function address. */ -+#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */ -+#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */ -+#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */ -+#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */ -+#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */ -+#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */ -+#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */ -+#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */ -+#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */ -+#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */ -+#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */ -+#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */ -+#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */ -+#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */ -+#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */ -+#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */ -+#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */ -+#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */ -+#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */ -+#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */ -+#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */ -+#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */ -+#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */ -+#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */ -+#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */ -+#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */ -+#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */ -+#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */ -+#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */ -+#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */ -+#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */ -+#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */ -+#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */ -+#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14 bits. */ -+#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14 bits. */ -+#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */ -+#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function ptr. */ -+#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function ptr. */ -+#define R_PARISC_LORESERVE 128 -+#define R_PARISC_COPY 128 /* Copy relocation. */ -+#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */ -+#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */ -+#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */ -+#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */ -+#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */ -+#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */ -+#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/ -+#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */ -+#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */ -+#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */ -+#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */ -+#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */ -+#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */ -+#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */ -+#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */ -+#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/ -+#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/ -+#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */ -+#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */ -+#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */ -+#define R_PARISC_HIRESERVE 255 -+ -+/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */ -+ -+#define PT_HP_TLS (PT_LOOS + 0x0) -+#define PT_HP_CORE_NONE (PT_LOOS + 0x1) -+#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) -+#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) -+#define PT_HP_CORE_COMM (PT_LOOS + 0x4) -+#define PT_HP_CORE_PROC (PT_LOOS + 0x5) -+#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) -+#define PT_HP_CORE_STACK (PT_LOOS + 0x7) -+#define PT_HP_CORE_SHM (PT_LOOS + 0x8) -+#define PT_HP_CORE_MMF (PT_LOOS + 0x9) -+#define PT_HP_PARALLEL (PT_LOOS + 0x10) -+#define PT_HP_FASTBIND (PT_LOOS + 0x11) -+#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) -+#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) -+#define PT_HP_STACK (PT_LOOS + 0x14) -+ -+#define PT_PARISC_ARCHEXT 0x70000000 -+#define PT_PARISC_UNWIND 0x70000001 -+ -+/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */ -+ -+#define PF_PARISC_SBP 0x08000000 -+ -+#define PF_HP_PAGE_SIZE 0x00100000 -+#define PF_HP_FAR_SHARED 0x00200000 -+#define PF_HP_NEAR_SHARED 0x00400000 -+#define PF_HP_CODE 0x01000000 -+#define PF_HP_MODIFY 0x02000000 -+#define PF_HP_LAZYSWAP 0x04000000 -+#define PF_HP_SBP 0x08000000 -+ -+ -+/* Alpha specific definitions. */ -+ -+/* Legal values for e_flags field of Elf64_Ehdr. */ -+ -+#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ -+#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ -+ -+/* Legal values for sh_type field of Elf64_Shdr. */ -+ -+/* These two are primerily concerned with ECOFF debugging info. */ -+#define SHT_ALPHA_DEBUG 0x70000001 -+#define SHT_ALPHA_REGINFO 0x70000002 -+ -+/* Legal values for sh_flags field of Elf64_Shdr. */ -+ -+#define SHF_ALPHA_GPREL 0x10000000 -+ -+/* Legal values for st_other field of Elf64_Sym. */ -+#define STO_ALPHA_NOPV 0x80 /* No PV required. */ -+#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */ -+ -+/* Alpha relocs. */ -+ -+#define R_ALPHA_NONE 0 /* No reloc */ -+#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ -+#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ -+#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ -+#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ -+#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ -+#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ -+#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ -+#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ -+#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ -+#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ -+#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ -+#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ -+#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ -+#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ -+#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ -+#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ -+#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ -+#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ -+#define R_ALPHA_TLS_GD_HI 28 -+#define R_ALPHA_TLSGD 29 -+#define R_ALPHA_TLS_LDM 30 -+#define R_ALPHA_DTPMOD64 31 -+#define R_ALPHA_GOTDTPREL 32 -+#define R_ALPHA_DTPREL64 33 -+#define R_ALPHA_DTPRELHI 34 -+#define R_ALPHA_DTPRELLO 35 -+#define R_ALPHA_DTPREL16 36 -+#define R_ALPHA_GOTTPREL 37 -+#define R_ALPHA_TPREL64 38 -+#define R_ALPHA_TPRELHI 39 -+#define R_ALPHA_TPRELLO 40 -+#define R_ALPHA_TPREL16 41 -+/* Keep this the last entry. */ -+#define R_ALPHA_NUM 46 -+ -+/* Magic values of the LITUSE relocation addend. */ -+#define LITUSE_ALPHA_ADDR 0 -+#define LITUSE_ALPHA_BASE 1 -+#define LITUSE_ALPHA_BYTOFF 2 -+#define LITUSE_ALPHA_JSR 3 -+#define LITUSE_ALPHA_TLS_GD 4 -+#define LITUSE_ALPHA_TLS_LDM 5 -+ -+ -+/* PowerPC specific declarations */ -+ -+/* Values for Elf32/64_Ehdr.e_flags. */ -+#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ -+ -+/* Cygnus local bits below */ -+#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ -+#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib -+ flag */ -+ -+/* PowerPC relocations defined by the ABIs */ -+#define R_PPC_NONE 0 -+#define R_PPC_ADDR32 1 /* 32bit absolute address */ -+#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ -+#define R_PPC_ADDR16 3 /* 16bit absolute address */ -+#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ -+#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ -+#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ -+#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ -+#define R_PPC_ADDR14_BRTAKEN 8 -+#define R_PPC_ADDR14_BRNTAKEN 9 -+#define R_PPC_REL24 10 /* PC relative 26 bit */ -+#define R_PPC_REL14 11 /* PC relative 16 bit */ -+#define R_PPC_REL14_BRTAKEN 12 -+#define R_PPC_REL14_BRNTAKEN 13 -+#define R_PPC_GOT16 14 -+#define R_PPC_GOT16_LO 15 -+#define R_PPC_GOT16_HI 16 -+#define R_PPC_GOT16_HA 17 -+#define R_PPC_PLTREL24 18 -+#define R_PPC_COPY 19 -+#define R_PPC_GLOB_DAT 20 -+#define R_PPC_JMP_SLOT 21 -+#define R_PPC_RELATIVE 22 -+#define R_PPC_LOCAL24PC 23 -+#define R_PPC_UADDR32 24 -+#define R_PPC_UADDR16 25 -+#define R_PPC_REL32 26 -+#define R_PPC_PLT32 27 -+#define R_PPC_PLTREL32 28 -+#define R_PPC_PLT16_LO 29 -+#define R_PPC_PLT16_HI 30 -+#define R_PPC_PLT16_HA 31 -+#define R_PPC_SDAREL16 32 -+#define R_PPC_SECTOFF 33 -+#define R_PPC_SECTOFF_LO 34 -+#define R_PPC_SECTOFF_HI 35 -+#define R_PPC_SECTOFF_HA 36 -+ -+/* PowerPC relocations defined for the TLS access ABI. */ -+#define R_PPC_TLS 67 /* none (sym+add)@tls */ -+#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */ -+#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */ -+#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ -+#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ -+#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ -+#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */ -+#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */ -+#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ -+#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ -+#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ -+#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */ -+#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ -+#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ -+#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ -+#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ -+#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ -+#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ -+#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ -+#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ -+#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@got@tprel */ -+#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@got@tprel@l */ -+#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ -+#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ -+#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@got@dtprel */ -+#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@got@dtprel@l */ -+#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */ -+#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */ -+ -+/* Keep this the last entry. */ -+#define R_PPC_NUM 95 -+ -+/* The remaining relocs are from the Embedded ELF ABI, and are not -+ in the SVR4 ELF ABI. */ -+#define R_PPC_EMB_NADDR32 101 -+#define R_PPC_EMB_NADDR16 102 -+#define R_PPC_EMB_NADDR16_LO 103 -+#define R_PPC_EMB_NADDR16_HI 104 -+#define R_PPC_EMB_NADDR16_HA 105 -+#define R_PPC_EMB_SDAI16 106 -+#define R_PPC_EMB_SDA2I16 107 -+#define R_PPC_EMB_SDA2REL 108 -+#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ -+#define R_PPC_EMB_MRKREF 110 -+#define R_PPC_EMB_RELSEC16 111 -+#define R_PPC_EMB_RELST_LO 112 -+#define R_PPC_EMB_RELST_HI 113 -+#define R_PPC_EMB_RELST_HA 114 -+#define R_PPC_EMB_BIT_FLD 115 -+#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ -+ -+/* Diab tool relocations. */ -+#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ -+#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ -+#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ -+#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ -+#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ -+#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ -+ -+/* This is a phony reloc to handle any old fashioned TOC16 references -+ that may still be in object files. */ -+#define R_PPC_TOC16 255 -+ -+ -+/* PowerPC64 relocations defined by the ABIs */ -+#define R_PPC64_NONE R_PPC_NONE -+#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */ -+#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */ -+#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */ -+#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */ -+#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */ -+#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */ -+#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */ -+#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN -+#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN -+#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */ -+#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */ -+#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN -+#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN -+#define R_PPC64_GOT16 R_PPC_GOT16 -+#define R_PPC64_GOT16_LO R_PPC_GOT16_LO -+#define R_PPC64_GOT16_HI R_PPC_GOT16_HI -+#define R_PPC64_GOT16_HA R_PPC_GOT16_HA -+ -+#define R_PPC64_COPY R_PPC_COPY -+#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT -+#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT -+#define R_PPC64_RELATIVE R_PPC_RELATIVE -+ -+#define R_PPC64_UADDR32 R_PPC_UADDR32 -+#define R_PPC64_UADDR16 R_PPC_UADDR16 -+#define R_PPC64_REL32 R_PPC_REL32 -+#define R_PPC64_PLT32 R_PPC_PLT32 -+#define R_PPC64_PLTREL32 R_PPC_PLTREL32 -+#define R_PPC64_PLT16_LO R_PPC_PLT16_LO -+#define R_PPC64_PLT16_HI R_PPC_PLT16_HI -+#define R_PPC64_PLT16_HA R_PPC_PLT16_HA -+ -+#define R_PPC64_SECTOFF R_PPC_SECTOFF -+#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO -+#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI -+#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA -+#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */ -+#define R_PPC64_ADDR64 38 /* doubleword64 S + A */ -+#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */ -+#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */ -+#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */ -+#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */ -+#define R_PPC64_UADDR64 43 /* doubleword64 S + A */ -+#define R_PPC64_REL64 44 /* doubleword64 S + A - P */ -+#define R_PPC64_PLT64 45 /* doubleword64 L + A */ -+#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */ -+#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */ -+#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */ -+#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */ -+#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */ -+#define R_PPC64_TOC 51 /* doubleword64 .TOC */ -+#define R_PPC64_PLTGOT16 52 /* half16* M + A */ -+#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */ -+#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */ -+#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */ -+ -+#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */ -+#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */ -+#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */ -+#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */ -+#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */ -+#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */ -+#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */ -+#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */ -+#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */ -+#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */ -+#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */ -+ -+/* PowerPC64 relocations defined for the TLS access ABI. */ -+#define R_PPC64_TLS 67 /* none (sym+add)@tls */ -+#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */ -+#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */ -+#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ -+#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ -+#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ -+#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */ -+#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */ -+#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ -+#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ -+#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ -+#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */ -+#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ -+#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ -+#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ -+#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ -+#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ -+#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ -+#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ -+#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ -+#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@got@tprel */ -+#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ -+#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ -+#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ -+#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */ -+#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ -+#define R_PPC64_GOT_DTPREL16_HI 93 /* half16 (sym+add)@got@dtprel@h */ -+#define R_PPC64_GOT_DTPREL16_HA 94 /* half16 (sym+add)@got@dtprel@ha */ -+#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */ -+#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@tprel@l */ -+#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@tprel@higher */ -+#define R_PPC64_TPREL16_HIGHERA 98 /* half16 (sym+add)@tprel@highera */ -+#define R_PPC64_TPREL16_HIGHEST 99 /* half16 (sym+add)@tprel@highest */ -+#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@tprel@highesta */ -+#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */ -+#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@dtprel@l */ -+#define R_PPC64_DTPREL16_HIGHER 103 /* half16 (sym+add)@dtprel@higher */ -+#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */ -+#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */ -+#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */ -+ -+/* Keep this the last entry. */ -+#define R_PPC64_NUM 107 -+ -+/* PowerPC64 specific values for the Dyn d_tag field. */ -+#define DT_PPC64_GLINK (DT_LOPROC + 0) -+#define DT_PPC64_NUM 1 -+ -+ -+/* ARM specific declarations */ -+ -+/* Processor specific flags for the ELF header e_flags field. */ -+#define EF_ARM_RELEXEC 0x01 -+#define EF_ARM_HASENTRY 0x02 -+#define EF_ARM_INTERWORK 0x04 -+#define EF_ARM_APCS_26 0x08 -+#define EF_ARM_APCS_FLOAT 0x10 -+#define EF_ARM_PIC 0x20 -+#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */ -+#define EF_ARM_NEW_ABI 0x80 -+#define EF_ARM_OLD_ABI 0x100 -+ -+/* Other constants defined in the ARM ELF spec. version B-01. */ -+/* NB. These conflict with values defined above. */ -+#define EF_ARM_SYMSARESORTED 0x04 -+#define EF_ARM_DYNSYMSUSESEGIDX 0x08 -+#define EF_ARM_MAPSYMSFIRST 0x10 -+#define EF_ARM_EABIMASK 0XFF000000 -+ -+#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) -+#define EF_ARM_EABI_UNKNOWN 0x00000000 -+#define EF_ARM_EABI_VER1 0x01000000 -+#define EF_ARM_EABI_VER2 0x02000000 -+ -+/* Additional symbol types for Thumb */ -+#define STT_ARM_TFUNC 0xd -+ -+/* ARM-specific values for sh_flags */ -+#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ -+#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined -+ in the input to a link step */ -+ -+/* ARM-specific program header flags */ -+#define PF_ARM_SB 0x10000000 /* Segment contains the location -+ addressed by the static base */ -+ -+/* ARM relocs. */ -+#define R_ARM_NONE 0 /* No reloc */ -+#define R_ARM_PC24 1 /* PC relative 26 bit branch */ -+#define R_ARM_ABS32 2 /* Direct 32 bit */ -+#define R_ARM_REL32 3 /* PC relative 32 bit */ -+#define R_ARM_PC13 4 -+#define R_ARM_ABS16 5 /* Direct 16 bit */ -+#define R_ARM_ABS12 6 /* Direct 12 bit */ -+#define R_ARM_THM_ABS5 7 -+#define R_ARM_ABS8 8 /* Direct 8 bit */ -+#define R_ARM_SBREL32 9 -+#define R_ARM_THM_PC22 10 -+#define R_ARM_THM_PC8 11 -+#define R_ARM_AMP_VCALL9 12 -+#define R_ARM_SWI24 13 -+#define R_ARM_THM_SWI8 14 -+#define R_ARM_XPC25 15 -+#define R_ARM_THM_XPC22 16 -+#define R_ARM_COPY 20 /* Copy symbol at runtime */ -+#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ -+#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ -+#define R_ARM_RELATIVE 23 /* Adjust by program base */ -+#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ -+#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ -+#define R_ARM_GOT32 26 /* 32 bit GOT entry */ -+#define R_ARM_PLT32 27 /* 32 bit PLT address */ -+#define R_ARM_ALU_PCREL_7_0 32 -+#define R_ARM_ALU_PCREL_15_8 33 -+#define R_ARM_ALU_PCREL_23_15 34 -+#define R_ARM_LDR_SBREL_11_0 35 -+#define R_ARM_ALU_SBREL_19_12 36 -+#define R_ARM_ALU_SBREL_27_20 37 -+#define R_ARM_GNU_VTENTRY 100 -+#define R_ARM_GNU_VTINHERIT 101 -+#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ -+#define R_ARM_THM_PC9 103 /* thumb conditional branch */ -+#define R_ARM_RXPC25 249 -+#define R_ARM_RSBREL32 250 -+#define R_ARM_THM_RPC22 251 -+#define R_ARM_RREL32 252 -+#define R_ARM_RABS22 253 -+#define R_ARM_RPC24 254 -+#define R_ARM_RBASE 255 -+/* Keep this the last entry. */ -+#define R_ARM_NUM 256 -+ -+/* IA-64 specific declarations. */ -+ -+/* Processor specific flags for the Ehdr e_flags field. */ -+#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */ -+#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */ -+#define EF_IA_64_ARCH 0xff000000 /* arch. version mask */ -+ -+/* Processor specific values for the Phdr p_type field. */ -+#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */ -+#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */ -+ -+/* Processor specific flags for the Phdr p_flags field. */ -+#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */ -+ -+/* Processor specific values for the Shdr sh_type field. */ -+#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */ -+#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */ -+ -+/* Processor specific flags for the Shdr sh_flags field. */ -+#define SHF_IA_64_SHORT 0x10000000 /* section near gp */ -+#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */ -+ -+/* Processor specific values for the Dyn d_tag field. */ -+#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) -+#define DT_IA_64_NUM 1 -+ -+/* IA-64 relocations. */ -+#define R_IA64_NONE 0x00 /* none */ -+#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */ -+#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */ -+#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */ -+#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */ -+#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */ -+#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */ -+#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */ -+#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */ -+#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64 */ -+#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */ -+#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */ -+#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */ -+#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */ -+#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */ -+#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64 */ -+#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add imm22 */ -+#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */ -+#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */ -+#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */ -+#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */ -+#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */ -+#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */ -+#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */ -+#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */ -+#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */ -+#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call */ -+#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */ -+#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */ -+#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */ -+#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */ -+#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */ -+#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */ -+#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */ -+#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */ -+#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */ -+#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */ -+#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */ -+#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */ -+#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */ -+#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */ -+#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */ -+#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */ -+#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */ -+#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */ -+#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */ -+#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */ -+#define R_IA64_REL32MSB 0x6c /* data 4 + REL */ -+#define R_IA64_REL32LSB 0x6d /* data 4 + REL */ -+#define R_IA64_REL64MSB 0x6e /* data 8 + REL */ -+#define R_IA64_REL64LSB 0x6f /* data 8 + REL */ -+#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */ -+#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */ -+#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */ -+#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */ -+#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */ -+#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */ -+#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit inst */ -+#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */ -+#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */ -+#define R_IA64_COPY 0x84 /* copy relocation */ -+#define R_IA64_SUB 0x85 /* Addend and symbol difference */ -+#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */ -+#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */ -+#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */ -+#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */ -+#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */ -+#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */ -+#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */ -+#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */ -+#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */ -+#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */ -+#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */ -+#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */ -+#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */ -+#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */ -+#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */ -+#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */ -+#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */ -+#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */ -+#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ -+ -+/* SH specific declarations */ -+ -+/* SH relocs. */ -+#define R_SH_NONE 0 -+#define R_SH_DIR32 1 -+#define R_SH_REL32 2 -+#define R_SH_DIR8WPN 3 -+#define R_SH_IND12W 4 -+#define R_SH_DIR8WPL 5 -+#define R_SH_DIR8WPZ 6 -+#define R_SH_DIR8BP 7 -+#define R_SH_DIR8W 8 -+#define R_SH_DIR8L 9 -+#define R_SH_SWITCH16 25 -+#define R_SH_SWITCH32 26 -+#define R_SH_USES 27 -+#define R_SH_COUNT 28 -+#define R_SH_ALIGN 29 -+#define R_SH_CODE 30 -+#define R_SH_DATA 31 -+#define R_SH_LABEL 32 -+#define R_SH_SWITCH8 33 -+#define R_SH_GNU_VTINHERIT 34 -+#define R_SH_GNU_VTENTRY 35 -+#define R_SH_TLS_GD_32 144 -+#define R_SH_TLS_LD_32 145 -+#define R_SH_TLS_LDO_32 146 -+#define R_SH_TLS_IE_32 147 -+#define R_SH_TLS_LE_32 148 -+#define R_SH_TLS_DTPMOD32 149 -+#define R_SH_TLS_DTPOFF32 150 -+#define R_SH_TLS_TPOFF32 151 -+#define R_SH_GOT32 160 -+#define R_SH_PLT32 161 -+#define R_SH_COPY 162 -+#define R_SH_GLOB_DAT 163 -+#define R_SH_JMP_SLOT 164 -+#define R_SH_RELATIVE 165 -+#define R_SH_GOTOFF 166 -+#define R_SH_GOTPC 167 -+/* Keep this the last entry. */ -+#define R_SH_NUM 256 -+ -+/* Additional s390 relocs */ -+ -+#define R_390_NONE 0 /* No reloc. */ -+#define R_390_8 1 /* Direct 8 bit. */ -+#define R_390_12 2 /* Direct 12 bit. */ -+#define R_390_16 3 /* Direct 16 bit. */ -+#define R_390_32 4 /* Direct 32 bit. */ -+#define R_390_PC32 5 /* PC relative 32 bit. */ -+#define R_390_GOT12 6 /* 12 bit GOT offset. */ -+#define R_390_GOT32 7 /* 32 bit GOT offset. */ -+#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ -+#define R_390_COPY 9 /* Copy symbol at runtime. */ -+#define R_390_GLOB_DAT 10 /* Create GOT entry. */ -+#define R_390_JMP_SLOT 11 /* Create PLT entry. */ -+#define R_390_RELATIVE 12 /* Adjust by program base. */ -+#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ -+#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */ -+#define R_390_GOT16 15 /* 16 bit GOT offset. */ -+#define R_390_PC16 16 /* PC relative 16 bit. */ -+#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ -+#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ -+#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ -+#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ -+#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ -+#define R_390_64 22 /* Direct 64 bit. */ -+#define R_390_PC64 23 /* PC relative 64 bit. */ -+#define R_390_GOT64 24 /* 64 bit GOT offset. */ -+#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ -+#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ -+#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ -+#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ -+#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ -+#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ -+#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ -+#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ -+#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ -+#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ -+#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ -+#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ -+#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ -+#define R_390_TLS_GDCALL 38 /* Tag for function call in general -+ dynamic TLS code. */ -+#define R_390_TLS_LDCALL 39 /* Tag for function call in local -+ dynamic TLS code. */ -+#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic -+ thread local data. */ -+#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic -+ thread local data. */ -+#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS -+ block offset. */ -+#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS -+ block offset. */ -+#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS -+ block offset. */ -+#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic -+ thread local data in LE code. */ -+#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic -+ thread local data in LE code. */ -+#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for -+ negated static TLS block offset. */ -+#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for -+ negated static TLS block offset. */ -+#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for -+ negated static TLS block offset. */ -+#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to -+ static TLS block. */ -+#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to -+ static TLS block. */ -+#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS -+ block. */ -+#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS -+ block. */ -+#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ -+#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ -+#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS -+ block. */ -+ -+/* Keep this the last entry. */ -+#define R_390_NUM 57 -+ -+/* CRIS relocations. */ -+#define R_CRIS_NONE 0 -+#define R_CRIS_8 1 -+#define R_CRIS_16 2 -+#define R_CRIS_32 3 -+#define R_CRIS_8_PCREL 4 -+#define R_CRIS_16_PCREL 5 -+#define R_CRIS_32_PCREL 6 -+#define R_CRIS_GNU_VTINHERIT 7 -+#define R_CRIS_GNU_VTENTRY 8 -+#define R_CRIS_COPY 9 -+#define R_CRIS_GLOB_DAT 10 -+#define R_CRIS_JUMP_SLOT 11 -+#define R_CRIS_RELATIVE 12 -+#define R_CRIS_16_GOT 13 -+#define R_CRIS_32_GOT 14 -+#define R_CRIS_16_GOTPLT 15 -+#define R_CRIS_32_GOTPLT 16 -+#define R_CRIS_32_GOTREL 17 -+#define R_CRIS_32_PLT_GOTREL 18 -+#define R_CRIS_32_PLT_PCREL 19 -+ -+#define R_CRIS_NUM 20 -+ -+/* AMD x86-64 relocations. */ -+#define R_X86_64_NONE 0 /* No reloc */ -+#define R_X86_64_64 1 /* Direct 64 bit */ -+#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ -+#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ -+#define R_X86_64_PLT32 4 /* 32 bit PLT address */ -+#define R_X86_64_COPY 5 /* Copy symbol at runtime */ -+#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ -+#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ -+#define R_X86_64_RELATIVE 8 /* Adjust by program base */ -+#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative -+ offset to GOT */ -+#define R_X86_64_32 10 /* Direct 32 bit zero extended */ -+#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ -+#define R_X86_64_16 12 /* Direct 16 bit zero extended */ -+#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ -+#define R_X86_64_8 14 /* Direct 8 bit sign extended */ -+#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ -+#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ -+#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ -+#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ -+#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset -+ to two GOT entries for GD symbol */ -+#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset -+ to two GOT entries for LD symbol */ -+#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ -+#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset -+ to GOT entry for IE symbol */ -+#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ -+ -+#define R_X86_64_NUM 24 -+ -+__END_DECLS -+ -+#endif /* elf.h */ - - #include "elfconfig.h" - -@@ -185,3 +2631,4 @@ - void fatal(const char *fmt, ...); - void warn(const char *fmt, ...); - void merror(const char *fmt, ...); -+ -diff -Nur linux-3.11.5.orig/scripts/mod/sumversion.c linux-3.11.5/scripts/mod/sumversion.c ---- linux-3.11.5.orig/scripts/mod/sumversion.c 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/scripts/mod/sumversion.c 2013-10-16 18:09:31.000000000 +0200 -@@ -1,4 +1,4 @@ --#include -+/* #include */ - #ifdef __sun__ - #include - #else -diff -Nur linux-3.11.5.orig/tools/include/tools/linux_types.h linux-3.11.5/tools/include/tools/linux_types.h ---- linux-3.11.5.orig/tools/include/tools/linux_types.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.11.5/tools/include/tools/linux_types.h 2013-10-16 18:09:31.000000000 +0200 -@@ -0,0 +1,22 @@ -+#ifndef __LINUX_TYPES_H -+#define __LINUX_TYPES_H -+ -+#include -+ -+typedef uint8_t __u8; -+typedef uint8_t __be8; -+typedef uint8_t __le8; -+ -+typedef uint16_t __u16; -+typedef uint16_t __be16; -+typedef uint16_t __le16; -+ -+typedef uint32_t __u32; -+typedef uint32_t __be32; -+typedef uint32_t __le32; -+ -+typedef uint64_t __u64; -+typedef uint64_t __be64; -+typedef uint64_t __le64; -+ -+#endif diff --git a/target/linux/patches/3.15-rc7/cleankernel.patch b/target/linux/patches/3.15-rc7/cleankernel.patch deleted file mode 100644 index d8c055dc3..000000000 --- a/target/linux/patches/3.15-rc7/cleankernel.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-3.11.5.orig/scripts/Makefile.headersinst linux-3.11.5/scripts/Makefile.headersinst ---- linux-3.11.5.orig/scripts/Makefile.headersinst 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/scripts/Makefile.headersinst 2013-10-15 16:33:10.000000000 +0200 -@@ -107,7 +107,6 @@ - - targets += $(install-file) - $(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE -- $(if $(unwanted),$(call cmd,remove),) - $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) - $(call if_changed,install) - diff --git a/target/linux/patches/3.15-rc7/defaults.patch b/target/linux/patches/3.15-rc7/defaults.patch deleted file mode 100644 index 6cdca084e..000000000 --- a/target/linux/patches/3.15-rc7/defaults.patch +++ /dev/null @@ -1,46 +0,0 @@ -diff -Nur linux-3.0.4.orig/fs/Kconfig linux-3.0.4/fs/Kconfig ---- linux-3.0.4.orig/fs/Kconfig 2011-08-29 22:56:30.000000000 +0200 -+++ linux-3.0.4/fs/Kconfig 2011-10-15 22:08:44.000000000 +0200 -@@ -47,7 +47,7 @@ - def_bool n - - config EXPORTFS -- tristate -+ def_bool y - - config FILE_LOCKING - bool "Enable POSIX file locking API" if EXPERT -diff -Nur linux-3.0.4.orig/fs/notify/Kconfig linux-3.0.4/fs/notify/Kconfig ---- linux-3.0.4.orig/fs/notify/Kconfig 2011-08-29 22:56:30.000000000 +0200 -+++ linux-3.0.4/fs/notify/Kconfig 2011-10-15 22:02:00.000000000 +0200 -@@ -1,5 +1,5 @@ - config FSNOTIFY -- def_bool n -+ def_bool y - - source "fs/notify/dnotify/Kconfig" - source "fs/notify/inotify/Kconfig" -diff -Nur linux-3.11.10.orig/drivers/scsi/Kconfig linux-3.11.10/drivers/scsi/Kconfig ---- linux-3.11.10.orig/drivers/scsi/Kconfig 2013-11-29 19:42:37.000000000 +0100 -+++ linux-3.11.10/drivers/scsi/Kconfig 2013-12-27 19:13:21.000000000 +0100 -@@ -2,7 +2,7 @@ - - config SCSI_MOD - tristate -- default y if SCSI=n || SCSI=y -+ default y if SCSI=y - default m if SCSI=m - - config RAID_ATTRS -diff -Nur linux-3.11.10.orig/usr/Kconfig linux-3.11.10/usr/Kconfig ---- linux-3.11.10.orig/usr/Kconfig 2013-11-29 19:42:37.000000000 +0100 -+++ linux-3.11.10/usr/Kconfig 2013-12-27 19:15:16.000000000 +0100 -@@ -47,7 +47,7 @@ - - config RD_GZIP - bool "Support initial ramdisks compressed using gzip" if EXPERT -- default y -+ default n - depends on BLK_DEV_INITRD - select DECOMPRESS_GZIP - help diff --git a/target/linux/patches/3.15-rc7/disable-netfilter.patch b/target/linux/patches/3.15-rc7/disable-netfilter.patch deleted file mode 100644 index 7b1ca013a..000000000 --- a/target/linux/patches/3.15-rc7/disable-netfilter.patch +++ /dev/null @@ -1,160 +0,0 @@ -diff -Nur linux-3.7.3.orig/net/Kconfig linux-3.7.3/net/Kconfig ---- linux-3.7.3.orig/net/Kconfig 2013-01-17 17:47:40.000000000 +0100 -+++ linux-3.7.3/net/Kconfig 2013-01-19 18:19:55.000000000 +0100 -@@ -163,7 +163,7 @@ - config NETFILTER_ADVANCED - bool "Advanced netfilter configuration" - depends on NETFILTER -- default y -+ default n - help - If you say Y here you can select between all the netfilter modules. - If you say N the more unusual ones will not be shown and the -@@ -175,7 +175,7 @@ - bool "Bridged IP/ARP packets filtering" - depends on BRIDGE && NETFILTER && INET - depends on NETFILTER_ADVANCED -- default y -+ default n - ---help--- - Enabling this option will let arptables resp. iptables see bridged - ARP resp. IP traffic. If you want a bridging firewall, you probably -diff -Nur linux-3.7.3.orig/net/netfilter/Kconfig linux-3.7.3/net/netfilter/Kconfig ---- linux-3.7.3.orig/net/netfilter/Kconfig 2013-01-17 17:47:40.000000000 +0100 -+++ linux-3.7.3/net/netfilter/Kconfig 2013-01-19 18:21:41.000000000 +0100 -@@ -22,7 +22,6 @@ - - config NETFILTER_NETLINK_LOG - tristate "Netfilter LOG over NFNETLINK interface" -- default m if NETFILTER_ADVANCED=n - select NETFILTER_NETLINK - help - If this option is enabled, the kernel will include support -@@ -34,7 +33,6 @@ - - config NF_CONNTRACK - tristate "Netfilter connection tracking support" -- default m if NETFILTER_ADVANCED=n - help - Connection tracking keeps a record of what packets have passed - through your machine, in order to figure out how they are related -@@ -60,7 +58,6 @@ - config NF_CONNTRACK_SECMARK - bool 'Connection tracking security mark support' - depends on NETWORK_SECMARK -- default m if NETFILTER_ADVANCED=n - help - This option enables security markings to be applied to - connections. Typically they are copied to connections from -@@ -177,7 +174,6 @@ - - config NF_CONNTRACK_FTP - tristate "FTP protocol support" -- default m if NETFILTER_ADVANCED=n - help - Tracking FTP connections is problematic: special helpers are - required for tracking them, and doing masquerading and other forms -@@ -211,7 +207,6 @@ - - config NF_CONNTRACK_IRC - tristate "IRC protocol support" -- default m if NETFILTER_ADVANCED=n - help - There is a commonly-used extension to IRC called - Direct Client-to-Client Protocol (DCC). This enables users to send -@@ -296,7 +291,6 @@ - - config NF_CONNTRACK_SIP - tristate "SIP protocol support" -- default m if NETFILTER_ADVANCED=n - help - SIP is an application-layer control protocol that can establish, - modify, and terminate multimedia sessions (conferences) such as -@@ -320,7 +314,6 @@ - config NF_CT_NETLINK - tristate 'Connection tracking netlink interface' - select NETFILTER_NETLINK -- default m if NETFILTER_ADVANCED=n - help - This option enables support for a netlink-based userspace interface - -@@ -424,7 +417,6 @@ - - config NETFILTER_XTABLES - tristate "Netfilter Xtables support (required for ip_tables)" -- default m if NETFILTER_ADVANCED=n - help - This is required if you intend to use any of ip_tables, - ip6_tables or arp_tables. -@@ -435,7 +427,6 @@ - - config NETFILTER_XT_MARK - tristate 'nfmark target and match support' -- default m if NETFILTER_ADVANCED=n - ---help--- - This option adds the "MARK" target and "mark" match. - -@@ -527,7 +518,6 @@ - config NETFILTER_XT_TARGET_CONNSECMARK - tristate '"CONNSECMARK" target support' - depends on NF_CONNTRACK && NF_CONNTRACK_SECMARK -- default m if NETFILTER_ADVANCED=n - help - The CONNSECMARK target copies security markings from packets - to connections, and restores security markings from connections -@@ -632,7 +622,6 @@ - - config NETFILTER_XT_TARGET_LOG - tristate "LOG target support" -- default m if NETFILTER_ADVANCED=n - help - This option adds a `LOG' target, which allows you to create rules in - any iptables table which records the packet header to the syslog. -@@ -660,7 +649,6 @@ - - config NETFILTER_XT_TARGET_NFLOG - tristate '"NFLOG" target support' -- default m if NETFILTER_ADVANCED=n - select NETFILTER_NETLINK_LOG - help - This option enables the NFLOG target, which allows to LOG -@@ -741,7 +729,6 @@ - config NETFILTER_XT_TARGET_SECMARK - tristate '"SECMARK" target support' - depends on NETWORK_SECMARK -- default m if NETFILTER_ADVANCED=n - help - The SECMARK target allows security marking of network - packets, for use with security subsystems. -@@ -751,7 +738,6 @@ - config NETFILTER_XT_TARGET_TCPMSS - tristate '"TCPMSS" target support' - depends on (IPV6 || IPV6=n) -- default m if NETFILTER_ADVANCED=n - ---help--- - This option adds a `TCPMSS' target, which allows you to alter the - MSS value of TCP SYN packets, to control the maximum size for that -@@ -856,7 +842,6 @@ - config NETFILTER_XT_MATCH_CONNTRACK - tristate '"conntrack" connection tracking match support' - depends on NF_CONNTRACK -- default m if NETFILTER_ADVANCED=n - help - This is a general conntrack match module, a superset of the state match. - -@@ -1063,7 +1048,6 @@ - config NETFILTER_XT_MATCH_POLICY - tristate 'IPsec "policy" match support' - depends on XFRM -- default m if NETFILTER_ADVANCED=n - help - Policy matching allows you to match packets based on the - IPsec policy that was used during decapsulation/will -@@ -1170,7 +1154,6 @@ - config NETFILTER_XT_MATCH_STATE - tristate '"state" match support' - depends on NF_CONNTRACK -- default m if NETFILTER_ADVANCED=n - help - Connection state matching allows you to match packets based on their - relationship to a tracked connection (ie. previous packets). This diff --git a/target/linux/patches/3.15-rc7/export-symbol-for-exmap.patch b/target/linux/patches/3.15-rc7/export-symbol-for-exmap.patch deleted file mode 100644 index 4f0fc8449..000000000 --- a/target/linux/patches/3.15-rc7/export-symbol-for-exmap.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-3.11.5.orig/kernel/pid.c linux-3.11.5/kernel/pid.c ---- linux-3.11.5.orig/kernel/pid.c 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/kernel/pid.c 2013-10-29 15:37:02.000000000 +0100 -@@ -450,6 +450,7 @@ - { - return find_task_by_pid_ns(vnr, task_active_pid_ns(current)); - } -+EXPORT_SYMBOL(find_task_by_vpid); - - struct pid *get_task_pid(struct task_struct *task, enum pid_type type) - { diff --git a/target/linux/patches/3.15-rc7/gemalto.patch b/target/linux/patches/3.15-rc7/gemalto.patch deleted file mode 100644 index 65f7af1d7..000000000 --- a/target/linux/patches/3.15-rc7/gemalto.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-2.6.36.orig/drivers/tty/serial/8250/serial_cs.c linux-2.6.36/drivers/serial/8250/serial_cs.c ---- linux-2.6.36.orig/drivers/tty/serial/8250/serial_cs.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/drivers/tty/serial/8250/serial_cs.c 2010-12-13 23:03:40.000000000 +0100 -@@ -794,6 +794,7 @@ - PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0025), - PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0045), - PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0052), -+ PCMCIA_DEVICE_MANF_CARD(0x0157, 0x0100), /* Gemalto SCR */ - PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0006), /* Psion 56K+Fax */ - PCMCIA_DEVICE_MANF_CARD(0x0200, 0x0001), /* MultiMobile */ - PCMCIA_DEVICE_PROD_ID134("ADV", "TECH", "COMpad-32/85", 0x67459937, 0x916d02ba, 0x8fbe92ae), diff --git a/target/linux/patches/3.15-rc7/initramfs-nosizelimit.patch b/target/linux/patches/3.15-rc7/initramfs-nosizelimit.patch deleted file mode 100644 index 40d2f6bd8..000000000 --- a/target/linux/patches/3.15-rc7/initramfs-nosizelimit.patch +++ /dev/null @@ -1,57 +0,0 @@ -From 9a18df7a71bfa620b1278777d64783a359d7eb4e Mon Sep 17 00:00:00 2001 -From: Thorsten Glaser -Date: Sun, 4 May 2014 01:37:54 +0200 -Subject: [PATCH] mount tmpfs-as-rootfs (initramfs) with -o - nr_blocks=0,nr_inodes=0 - -I would have preferred to write this patch to be able to pass -rootflags=nr_blocks=0,nr_inodes=0 on the kernel command line, -and then hand these rootflags over to the initramfs (tmpfs) -mount in the same way the kernel hands them over to the block -device rootfs mount. But at least the Debian/m68k initrd also -parses $rootflags from the environment and adds it to the call -to the user-space mount for the eventual root device, which -would make the kernel command line rootflags option be used in -both places (tmpfs and e.g. ext4) which is guaranteed to error -out in at least one of them. - -This change is intended to aid people in a setup where the -initrd is the final root filesystem, i.e. not mounted over. -This is especially useful in automated tests running on qemu -for boards with constrained memory (e.g. 64 MiB on sh4). - -Considering that the initramfs is normally emptied out then -overmounted, this change is probably safe for setups where -initramfs just hosts early userspace, too, since the tmpfs -backing it is not accessible any more later on, AFAICT. - -Signed-off-by: Thorsten Glaser ---- - init/do_mounts.c | 4 ++++ - 1 file changed, 4 insertions(+) - -diff --git a/init/do_mounts.c b/init/do_mounts.c -index 82f2288..55a4cfe 100644 ---- a/init/do_mounts.c -+++ b/init/do_mounts.c -@@ -594,6 +594,7 @@ out: - } - - static bool is_tmpfs; -+static char tmpfs_rootflags[] = "nr_blocks=0,nr_inodes=0"; - static struct dentry *rootfs_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) - { -@@ -606,6 +607,9 @@ static struct dentry *rootfs_mount(struct file_system_type *fs_type, - if (IS_ENABLED(CONFIG_TMPFS) && is_tmpfs) - fill = shmem_fill_super; - -+ if (is_tmpfs) -+ data = tmpfs_rootflags; -+ - return mount_nodev(fs_type, flags, data, fill); - } - --- -2.0.0.rc0 - diff --git a/target/linux/patches/3.15-rc7/lemote-rfkill.patch b/target/linux/patches/3.15-rc7/lemote-rfkill.patch deleted file mode 100644 index a61488434..000000000 --- a/target/linux/patches/3.15-rc7/lemote-rfkill.patch +++ /dev/null @@ -1,21 +0,0 @@ -diff -Nur linux-3.3.orig/drivers/net/wireless/rtl818x/rtl8187/rfkill.c linux-3.3/drivers/net/wireless/rtl818x/rtl8187/rfkill.c ---- linux-3.3.orig/drivers/net/wireless/rtl818x/rtl8187/rfkill.c 2012-03-19 00:15:34.000000000 +0100 -+++ linux-3.3/drivers/net/wireless/rtl818x/rtl8187/rfkill.c 2012-03-27 23:29:46.000000000 +0200 -@@ -22,6 +22,9 @@ - - static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv) - { -+#ifdef CONFIG_LEMOTE_MACH2F -+ return 1; -+#else - u8 gpio; - - gpio = rtl818x_ioread8(priv, &priv->map->GPIO0); -@@ -29,6 +32,7 @@ - gpio = rtl818x_ioread8(priv, &priv->map->GPIO1); - - return gpio & priv->rfkill_mask; -+#endif - } - - void rtl8187_rfkill_init(struct ieee80211_hw *hw) diff --git a/target/linux/patches/3.15-rc7/microblaze-axi.patch b/target/linux/patches/3.15-rc7/microblaze-axi.patch deleted file mode 100644 index 1a4b17d8c..000000000 --- a/target/linux/patches/3.15-rc7/microblaze-axi.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-3.13.3.orig/drivers/net/ethernet/xilinx/xilinx_axienet_main.c linux-3.13.3/drivers/net/ethernet/xilinx/xilinx_axienet_main.c ---- linux-3.13.3.orig/drivers/net/ethernet/xilinx/xilinx_axienet_main.c 2014-02-13 23:00:14.000000000 +0100 -+++ linux-3.13.3/drivers/net/ethernet/xilinx/xilinx_axienet_main.c 2014-02-24 08:03:57.000000000 +0100 -@@ -25,6 +25,7 @@ - #include - #include - #include -+#include - #include - #include - #include diff --git a/target/linux/patches/3.15-rc7/microblaze-ethernet.patch b/target/linux/patches/3.15-rc7/microblaze-ethernet.patch deleted file mode 100644 index 742ab477e..000000000 --- a/target/linux/patches/3.15-rc7/microblaze-ethernet.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-3.11.10.orig/drivers/net/ethernet/xilinx/xilinx_emaclite.c linux-3.11.10/drivers/net/ethernet/xilinx/xilinx_emaclite.c ---- linux-3.11.10.orig/drivers/net/ethernet/xilinx/xilinx_emaclite.c 2013-11-29 19:42:37.000000000 +0100 -+++ linux-3.11.10/drivers/net/ethernet/xilinx/xilinx_emaclite.c 2013-12-23 20:01:14.000000000 +0100 -@@ -1282,6 +1282,7 @@ - { .compatible = "xlnx,opb-ethernetlite-1.01.b", }, - { .compatible = "xlnx,xps-ethernetlite-1.00.a", }, - { .compatible = "xlnx,xps-ethernetlite-2.00.a", }, -+ { .compatible = "xlnx,xps-ethernetlite-2.00.b", }, - { .compatible = "xlnx,xps-ethernetlite-2.01.a", }, - { .compatible = "xlnx,xps-ethernetlite-3.00.a", }, - { /* end of list */ }, diff --git a/target/linux/patches/3.15-rc7/mkpiggy.patch b/target/linux/patches/3.15-rc7/mkpiggy.patch deleted file mode 100644 index 751678b74..000000000 --- a/target/linux/patches/3.15-rc7/mkpiggy.patch +++ /dev/null @@ -1,28 +0,0 @@ -diff -Nur linux-3.13.3.orig/arch/x86/boot/compressed/mkpiggy.c linux-3.13.3/arch/x86/boot/compressed/mkpiggy.c ---- linux-3.13.3.orig/arch/x86/boot/compressed/mkpiggy.c 2014-02-13 23:00:14.000000000 +0100 -+++ linux-3.13.3/arch/x86/boot/compressed/mkpiggy.c 2014-02-17 11:09:06.000000000 +0100 -@@ -29,7 +29,14 @@ - #include - #include - #include --#include -+ -+static uint32_t getle32(const void *p) -+{ -+ const uint8_t *cp = p; -+ -+ return (uint32_t)cp[0] + ((uint32_t)cp[1] << 8) + -+ ((uint32_t)cp[2] << 16) + ((uint32_t)cp[3] << 24); -+} - - int main(int argc, char *argv[]) - { -@@ -63,7 +70,7 @@ - } - - ilen = ftell(f); -- olen = get_unaligned_le32(&olen); -+ olen = getle32(&olen); - - /* - * Now we have the input (compressed) and output (uncompressed) diff --git a/target/linux/patches/3.15-rc7/mtd-rootfs.patch b/target/linux/patches/3.15-rc7/mtd-rootfs.patch deleted file mode 100644 index 775d5fc80..000000000 --- a/target/linux/patches/3.15-rc7/mtd-rootfs.patch +++ /dev/null @@ -1,26 +0,0 @@ -diff -Nur linux-3.5.orig//drivers/mtd/mtdpart.c linux-3.5/drivers/mtd/mtdpart.c ---- linux-3.5.orig//drivers/mtd/mtdpart.c 2012-07-21 22:58:29.000000000 +0200 -+++ linux-3.5/drivers/mtd/mtdpart.c 2012-07-31 23:59:07.000000000 +0200 -@@ -30,6 +30,7 @@ - #include - #include - #include -+#include - - #include "mtdcore.h" - -@@ -637,6 +638,14 @@ - if (IS_ERR(slave)) - return PTR_ERR(slave); - -+ if (strcmp(parts[i].name, "rootfs") == 0) { -+ if (ROOT_DEV == 0) { -+ printk(KERN_NOTICE "mtd: partition \"rootfs\" " -+ "set to be root filesystem\n"); -+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, i); -+ } -+ } -+ - mutex_lock(&mtd_partitions_mutex); - list_add(&slave->list, &mtd_partitions); - mutex_unlock(&mtd_partitions_mutex); diff --git a/target/linux/patches/3.15-rc7/nfsv3-tcp.patch b/target/linux/patches/3.15-rc7/nfsv3-tcp.patch deleted file mode 100644 index d5e07e1c2..000000000 --- a/target/linux/patches/3.15-rc7/nfsv3-tcp.patch +++ /dev/null @@ -1,12 +0,0 @@ -diff -Nur linux-3.15-rc5.orig/fs/nfs/nfsroot.c linux-3.15-rc5/fs/nfs/nfsroot.c ---- linux-3.15-rc5.orig/fs/nfs/nfsroot.c 2014-05-09 22:10:52.000000000 +0200 -+++ linux-3.15-rc5/fs/nfs/nfsroot.c 2014-05-16 15:45:38.000000000 +0200 -@@ -87,7 +87,7 @@ - #define NFS_ROOT "/tftpboot/%s" - - /* Default NFSROOT mount options. */ --#define NFS_DEF_OPTIONS "vers=2,udp,rsize=4096,wsize=4096" -+#define NFS_DEF_OPTIONS "nfsvers=3,proto=tcp,rsize=4096,wsize=4096" - - /* Parameters passed from the kernel command line */ - static char nfs_root_parms[256] __initdata = ""; diff --git a/target/linux/patches/3.15-rc7/non-static.patch b/target/linux/patches/3.15-rc7/non-static.patch deleted file mode 100644 index a967703d0..000000000 --- a/target/linux/patches/3.15-rc7/non-static.patch +++ /dev/null @@ -1,33 +0,0 @@ -diff -Nur linux-2.6.39-rc6.orig/fs/namei.c linux-2.6.39-rc6/fs/namei.c ---- linux-2.6.39-rc6.orig/fs/namei.c 2011-05-04 04:59:13.000000000 +0200 -+++ linux-2.6.39-rc6/fs/namei.c 2011-05-05 11:30:14.000000000 +0200 -@@ -1769,7 +1769,7 @@ - * needs parent already locked. Doesn't follow mounts. - * SMP-safe. - */ --static struct dentry *lookup_hash(struct nameidata *nd) -+struct dentry *lookup_hash(struct nameidata *nd) - { - return __lookup_hash(&nd->last, nd->path.dentry, nd); - } -diff -Nur linux-2.6.39-rc6.orig/fs/splice.c linux-2.6.39-rc6/fs/splice.c ---- linux-2.6.39-rc6.orig/fs/splice.c 2011-05-04 04:59:13.000000000 +0200 -+++ linux-2.6.39-rc6/fs/splice.c 2011-05-05 11:31:04.000000000 +0200 -@@ -1081,7 +1081,7 @@ - /* - * Attempt to initiate a splice from pipe to file. - */ --static long do_splice_from(struct pipe_inode_info *pipe, struct file *out, -+long do_splice_from(struct pipe_inode_info *pipe, struct file *out, - loff_t *ppos, size_t len, unsigned int flags) - { - ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, -@@ -1109,7 +1109,7 @@ - /* - * Attempt to initiate a splice from a file to a pipe. - */ --static long do_splice_to(struct file *in, loff_t *ppos, -+long do_splice_to(struct file *in, loff_t *ppos, - struct pipe_inode_info *pipe, size_t len, - unsigned int flags) - { diff --git a/target/linux/patches/3.15-rc7/patch-yaffs2 b/target/linux/patches/3.15-rc7/patch-yaffs2 deleted file mode 100644 index bb244c7ca..000000000 --- a/target/linux/patches/3.15-rc7/patch-yaffs2 +++ /dev/null @@ -1,16551 +0,0 @@ -diff -Nur linux-3.15-rc5.orig/fs/Kconfig linux-3.15-rc5/fs/Kconfig ---- linux-3.15-rc5.orig/fs/Kconfig 2014-05-09 22:10:52.000000000 +0200 -+++ linux-3.15-rc5/fs/Kconfig 2014-05-17 01:53:17.000000000 +0200 -@@ -190,6 +190,7 @@ - source "fs/befs/Kconfig" - source "fs/bfs/Kconfig" - source "fs/efs/Kconfig" -+source "fs/yaffs2/Kconfig" - source "fs/jffs2/Kconfig" - # UBIFS File system configuration - source "fs/ubifs/Kconfig" -diff -Nur linux-3.15-rc5.orig/fs/Makefile linux-3.15-rc5/fs/Makefile ---- linux-3.15-rc5.orig/fs/Makefile 2014-05-09 22:10:52.000000000 +0200 -+++ linux-3.15-rc5/fs/Makefile 2014-05-17 01:53:25.000000000 +0200 -@@ -126,3 +126,4 @@ - obj-$(CONFIG_CEPH_FS) += ceph/ - obj-$(CONFIG_PSTORE) += pstore/ - obj-$(CONFIG_EFIVAR_FS) += efivarfs/ -+obj-$(CONFIG_YAFFS_FS) += yaffs2/ -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/Kconfig linux-3.15-rc5/fs/yaffs2/Kconfig ---- linux-3.15-rc5.orig/fs/yaffs2/Kconfig 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/Kconfig 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,171 @@ -+# -+# yaffs file system configurations -+# -+ -+config YAFFS_FS -+ tristate "yaffs2 file system support" -+ default n -+ depends on MTD_BLOCK -+ select YAFFS_YAFFS1 -+ select YAFFS_YAFFS2 -+ help -+ yaffs2, or Yet Another Flash File System, is a file system -+ optimised for NAND Flash chips. -+ -+ To compile the yaffs2 file system support as a module, choose M -+ here: the module will be called yaffs2. -+ -+ If unsure, say N. -+ -+ Further information on yaffs2 is available at -+ . -+ -+config YAFFS_YAFFS1 -+ bool "512 byte / page devices" -+ depends on YAFFS_FS -+ default y -+ help -+ Enable yaffs1 support -- yaffs for 512 byte / page devices -+ -+ Not needed for 2K-page devices. -+ -+ If unsure, say Y. -+ -+config YAFFS_9BYTE_TAGS -+ bool "Use older-style on-NAND data format with pageStatus byte" -+ depends on YAFFS_YAFFS1 -+ default n -+ help -+ -+ Older-style on-NAND data format has a "pageStatus" byte to record -+ chunk/page state. This byte is zero when the page is discarded. -+ Choose this option if you have existing on-NAND data using this -+ format that you need to continue to support. New data written -+ also uses the older-style format. Note: Use of this option -+ generally requires that MTD's oob layout be adjusted to use the -+ older-style format. See notes on tags formats and MTD versions -+ in yaffs_mtdif1.c. -+ -+ If unsure, say N. -+ -+config YAFFS_DOES_ECC -+ bool "Lets yaffs do its own ECC" -+ depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS -+ default n -+ help -+ This enables yaffs to use its own ECC functions instead of using -+ the ones from the generic MTD-NAND driver. -+ -+ If unsure, say N. -+ -+config YAFFS_ECC_WRONG_ORDER -+ bool "Use the same ecc byte order as Steven Hill's nand_ecc.c" -+ depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS -+ default n -+ help -+ This makes yaffs_ecc.c use the same ecc byte order as Steven -+ Hill's nand_ecc.c. If not set, then you get the same ecc byte -+ order as SmartMedia. -+ -+ If unsure, say N. -+ -+config YAFFS_YAFFS2 -+ bool "2048 byte (or larger) / page devices" -+ depends on YAFFS_FS -+ default y -+ help -+ Enable yaffs2 support -- yaffs for >= 2K bytes per page devices -+ -+ If unsure, say Y. -+ -+config YAFFS_AUTO_YAFFS2 -+ bool "Autoselect yaffs2 format" -+ depends on YAFFS_YAFFS2 -+ default y -+ help -+ Without this, you need to explicitely use yaffs2 as the file -+ system type. With this, you can say "yaffs" and yaffs or yaffs2 -+ will be used depending on the device page size (yaffs on -+ 512-byte page devices, yaffs2 on 2K page devices). -+ -+ If unsure, say Y. -+ -+config YAFFS_DISABLE_TAGS_ECC -+ bool "Disable yaffs from doing ECC on tags by default" -+ depends on YAFFS_FS && YAFFS_YAFFS2 -+ default n -+ help -+ This defaults yaffs to using its own ECC calculations on tags instead of -+ just relying on the MTD. -+ This behavior can also be overridden with tags_ecc_on and -+ tags_ecc_off mount options. -+ -+ If unsure, say N. -+ -+config YAFFS_ALWAYS_CHECK_CHUNK_ERASED -+ bool "Force chunk erase check" -+ depends on YAFFS_FS -+ default n -+ help -+ Normally yaffs only checks chunks before writing until an erased -+ chunk is found. This helps to detect any partially written -+ chunks that might have happened due to power loss. -+ -+ Enabling this forces on the test that chunks are erased in flash -+ before writing to them. This takes more time but is potentially -+ a bit more secure. -+ -+ Suggest setting Y during development and ironing out driver -+ issues etc. Suggest setting to N if you want faster writing. -+ -+ If unsure, say Y. -+ -+config YAFFS_EMPTY_LOST_AND_FOUND -+ bool "Empty lost and found on boot" -+ depends on YAFFS_FS -+ default n -+ help -+ If this is enabled then the contents of lost and found is -+ automatically dumped at mount. -+ -+ If unsure, say N. -+ -+config YAFFS_DISABLE_BLOCK_REFRESHING -+ bool "Disable yaffs2 block refreshing" -+ depends on YAFFS_FS -+ default n -+ help -+ If this is set, then block refreshing is disabled. -+ Block refreshing infrequently refreshes the oldest block in -+ a yaffs2 file system. This mechanism helps to refresh flash to -+ mitigate against data loss. This is particularly useful for MLC. -+ -+ If unsure, say N. -+ -+config YAFFS_DISABLE_BACKGROUND -+ bool "Disable yaffs2 background processing" -+ depends on YAFFS_FS -+ default n -+ help -+ If this is set, then background processing is disabled. -+ Background processing makes many foreground activities faster. -+ -+ If unsure, say N. -+ -+config YAFFS_DISABLE_BAD_BLOCK_MARKING -+ bool "Disable yaffs2 bad block marking" -+ depends on YAFFS_FS -+ default n -+ help -+ Useful during early flash bring up to prevent problems causing -+ lots of bad block marking. -+ -+ If unsure, say N. -+ -+config YAFFS_XATTR -+ bool "Enable yaffs2 xattr support" -+ depends on YAFFS_FS -+ default y -+ help -+ If this is set then yaffs2 will provide xattr support. -+ If unsure, say Y. -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/Makefile linux-3.15-rc5/fs/yaffs2/Makefile ---- linux-3.15-rc5.orig/fs/yaffs2/Makefile 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/Makefile 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,18 @@ -+# -+# Makefile for the linux YAFFS filesystem routines. -+# -+ -+obj-$(CONFIG_YAFFS_FS) += yaffs.o -+ -+yaffs-y := yaffs_ecc.o yaffs_vfs.o yaffs_guts.o yaffs_checkptrw.o -+yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o -+yaffs-y += yaffs_tagscompat.o yaffs_tagsmarshall.o -+yaffs-y += yaffs_mtdif.o -+yaffs-y += yaffs_nameval.o yaffs_attribs.o -+yaffs-y += yaffs_allocator.o -+yaffs-y += yaffs_yaffs1.o -+yaffs-y += yaffs_yaffs2.o -+yaffs-y += yaffs_bitmap.o -+yaffs-y += yaffs_summary.o -+yaffs-y += yaffs_verify.o -+ -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.c linux-3.15-rc5/fs/yaffs2/yaffs_allocator.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_allocator.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,357 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_allocator.h" -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+#include "yportenv.h" -+ -+/* -+ * Each entry in yaffs_tnode_list and yaffs_obj_list hold blocks -+ * of approx 100 objects that are themn allocated singly. -+ * This is basically a simplified slab allocator. -+ * -+ * We don't use the Linux slab allocator because slab does not allow -+ * us to dump all the objects in one hit when we do a umount and tear -+ * down all the tnodes and objects. slab requires that we first free -+ * the individual objects. -+ * -+ * Once yaffs has been mainlined I shall try to motivate for a change -+ * to slab to provide the extra features we need here. -+ */ -+ -+struct yaffs_tnode_list { -+ struct yaffs_tnode_list *next; -+ struct yaffs_tnode *tnodes; -+}; -+ -+struct yaffs_obj_list { -+ struct yaffs_obj_list *next; -+ struct yaffs_obj *objects; -+}; -+ -+struct yaffs_allocator { -+ int n_tnodes_created; -+ struct yaffs_tnode *free_tnodes; -+ int n_free_tnodes; -+ struct yaffs_tnode_list *alloc_tnode_list; -+ -+ int n_obj_created; -+ struct list_head free_objs; -+ int n_free_objects; -+ -+ struct yaffs_obj_list *allocated_obj_list; -+}; -+ -+static void yaffs_deinit_raw_tnodes(struct yaffs_dev *dev) -+{ -+ struct yaffs_allocator *allocator = -+ (struct yaffs_allocator *)dev->allocator; -+ struct yaffs_tnode_list *tmp; -+ -+ if (!allocator) { -+ BUG(); -+ return; -+ } -+ -+ while (allocator->alloc_tnode_list) { -+ tmp = allocator->alloc_tnode_list->next; -+ -+ kfree(allocator->alloc_tnode_list->tnodes); -+ kfree(allocator->alloc_tnode_list); -+ allocator->alloc_tnode_list = tmp; -+ } -+ -+ allocator->free_tnodes = NULL; -+ allocator->n_free_tnodes = 0; -+ allocator->n_tnodes_created = 0; -+} -+ -+static void yaffs_init_raw_tnodes(struct yaffs_dev *dev) -+{ -+ struct yaffs_allocator *allocator = dev->allocator; -+ -+ if (!allocator) { -+ BUG(); -+ return; -+ } -+ -+ allocator->alloc_tnode_list = NULL; -+ allocator->free_tnodes = NULL; -+ allocator->n_free_tnodes = 0; -+ allocator->n_tnodes_created = 0; -+} -+ -+static int yaffs_create_tnodes(struct yaffs_dev *dev, int n_tnodes) -+{ -+ struct yaffs_allocator *allocator = -+ (struct yaffs_allocator *)dev->allocator; -+ int i; -+ struct yaffs_tnode *new_tnodes; -+ u8 *mem; -+ struct yaffs_tnode *curr; -+ struct yaffs_tnode *next; -+ struct yaffs_tnode_list *tnl; -+ -+ if (!allocator) { -+ BUG(); -+ return YAFFS_FAIL; -+ } -+ -+ if (n_tnodes < 1) -+ return YAFFS_OK; -+ -+ /* make these things */ -+ new_tnodes = kmalloc(n_tnodes * dev->tnode_size, GFP_NOFS); -+ mem = (u8 *) new_tnodes; -+ -+ if (!new_tnodes) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs: Could not allocate Tnodes"); -+ return YAFFS_FAIL; -+ } -+ -+ /* New hookup for wide tnodes */ -+ for (i = 0; i < n_tnodes - 1; i++) { -+ curr = (struct yaffs_tnode *)&mem[i * dev->tnode_size]; -+ next = (struct yaffs_tnode *)&mem[(i + 1) * dev->tnode_size]; -+ curr->internal[0] = next; -+ } -+ -+ curr = (struct yaffs_tnode *)&mem[(n_tnodes - 1) * dev->tnode_size]; -+ curr->internal[0] = allocator->free_tnodes; -+ allocator->free_tnodes = (struct yaffs_tnode *)mem; -+ -+ allocator->n_free_tnodes += n_tnodes; -+ allocator->n_tnodes_created += n_tnodes; -+ -+ /* Now add this bunch of tnodes to a list for freeing up. -+ * NB If we can't add this to the management list it isn't fatal -+ * but it just means we can't free this bunch of tnodes later. -+ */ -+ tnl = kmalloc(sizeof(struct yaffs_tnode_list), GFP_NOFS); -+ if (!tnl) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "Could not add tnodes to management list"); -+ return YAFFS_FAIL; -+ } else { -+ tnl->tnodes = new_tnodes; -+ tnl->next = allocator->alloc_tnode_list; -+ allocator->alloc_tnode_list = tnl; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_ALLOCATE, "Tnodes added"); -+ -+ return YAFFS_OK; -+} -+ -+struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev) -+{ -+ struct yaffs_allocator *allocator = -+ (struct yaffs_allocator *)dev->allocator; -+ struct yaffs_tnode *tn = NULL; -+ -+ if (!allocator) { -+ BUG(); -+ return NULL; -+ } -+ -+ /* If there are none left make more */ -+ if (!allocator->free_tnodes) -+ yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES); -+ -+ if (allocator->free_tnodes) { -+ tn = allocator->free_tnodes; -+ allocator->free_tnodes = allocator->free_tnodes->internal[0]; -+ allocator->n_free_tnodes--; -+ } -+ -+ return tn; -+} -+ -+/* FreeTnode frees up a tnode and puts it back on the free list */ -+void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn) -+{ -+ struct yaffs_allocator *allocator = dev->allocator; -+ -+ if (!allocator) { -+ BUG(); -+ return; -+ } -+ -+ if (tn) { -+ tn->internal[0] = allocator->free_tnodes; -+ allocator->free_tnodes = tn; -+ allocator->n_free_tnodes++; -+ } -+ dev->checkpoint_blocks_required = 0; /* force recalculation */ -+} -+ -+/*--------------- yaffs_obj alloaction ------------------------ -+ * -+ * Free yaffs_objs are stored in a list using obj->siblings. -+ * The blocks of allocated objects are stored in a linked list. -+ */ -+ -+static void yaffs_init_raw_objs(struct yaffs_dev *dev) -+{ -+ struct yaffs_allocator *allocator = dev->allocator; -+ -+ if (!allocator) { -+ BUG(); -+ return; -+ } -+ -+ allocator->allocated_obj_list = NULL; -+ INIT_LIST_HEAD(&allocator->free_objs); -+ allocator->n_free_objects = 0; -+} -+ -+static void yaffs_deinit_raw_objs(struct yaffs_dev *dev) -+{ -+ struct yaffs_allocator *allocator = dev->allocator; -+ struct yaffs_obj_list *tmp; -+ -+ if (!allocator) { -+ BUG(); -+ return; -+ } -+ -+ while (allocator->allocated_obj_list) { -+ tmp = allocator->allocated_obj_list->next; -+ kfree(allocator->allocated_obj_list->objects); -+ kfree(allocator->allocated_obj_list); -+ allocator->allocated_obj_list = tmp; -+ } -+ -+ INIT_LIST_HEAD(&allocator->free_objs); -+ allocator->n_free_objects = 0; -+ allocator->n_obj_created = 0; -+} -+ -+static int yaffs_create_free_objs(struct yaffs_dev *dev, int n_obj) -+{ -+ struct yaffs_allocator *allocator = dev->allocator; -+ int i; -+ struct yaffs_obj *new_objs; -+ struct yaffs_obj_list *list; -+ -+ if (!allocator) { -+ BUG(); -+ return YAFFS_FAIL; -+ } -+ -+ if (n_obj < 1) -+ return YAFFS_OK; -+ -+ /* make these things */ -+ new_objs = kmalloc(n_obj * sizeof(struct yaffs_obj), GFP_NOFS); -+ list = kmalloc(sizeof(struct yaffs_obj_list), GFP_NOFS); -+ -+ if (!new_objs || !list) { -+ kfree(new_objs); -+ new_objs = NULL; -+ kfree(list); -+ list = NULL; -+ yaffs_trace(YAFFS_TRACE_ALLOCATE, -+ "Could not allocate more objects"); -+ return YAFFS_FAIL; -+ } -+ -+ /* Hook them into the free list */ -+ for (i = 0; i < n_obj; i++) -+ list_add(&new_objs[i].siblings, &allocator->free_objs); -+ -+ allocator->n_free_objects += n_obj; -+ allocator->n_obj_created += n_obj; -+ -+ /* Now add this bunch of Objects to a list for freeing up. */ -+ -+ list->objects = new_objs; -+ list->next = allocator->allocated_obj_list; -+ allocator->allocated_obj_list = list; -+ -+ return YAFFS_OK; -+} -+ -+struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj = NULL; -+ struct list_head *lh; -+ struct yaffs_allocator *allocator = dev->allocator; -+ -+ if (!allocator) { -+ BUG(); -+ return obj; -+ } -+ -+ /* If there are none left make more */ -+ if (list_empty(&allocator->free_objs)) -+ yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS); -+ -+ if (!list_empty(&allocator->free_objs)) { -+ lh = allocator->free_objs.next; -+ obj = list_entry(lh, struct yaffs_obj, siblings); -+ list_del_init(lh); -+ allocator->n_free_objects--; -+ } -+ -+ return obj; -+} -+ -+void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj) -+{ -+ -+ struct yaffs_allocator *allocator = dev->allocator; -+ -+ if (!allocator) { -+ BUG(); -+ return; -+ } -+ -+ /* Link into the free list. */ -+ list_add(&obj->siblings, &allocator->free_objs); -+ allocator->n_free_objects++; -+} -+ -+void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev) -+{ -+ -+ if (!dev->allocator) { -+ BUG(); -+ return; -+ } -+ -+ yaffs_deinit_raw_tnodes(dev); -+ yaffs_deinit_raw_objs(dev); -+ kfree(dev->allocator); -+ dev->allocator = NULL; -+} -+ -+void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev) -+{ -+ struct yaffs_allocator *allocator; -+ -+ if (dev->allocator) { -+ BUG(); -+ return; -+ } -+ -+ allocator = kmalloc(sizeof(struct yaffs_allocator), GFP_NOFS); -+ if (allocator) { -+ dev->allocator = allocator; -+ yaffs_init_raw_tnodes(dev); -+ yaffs_init_raw_objs(dev); -+ } -+} -+ -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.h linux-3.15-rc5/fs/yaffs2/yaffs_allocator.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_allocator.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,30 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_ALLOCATOR_H__ -+#define __YAFFS_ALLOCATOR_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev); -+void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev); -+ -+struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev); -+void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn); -+ -+struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev); -+void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.c linux-3.15-rc5/fs/yaffs2/yaffs_attribs.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_attribs.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,166 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_guts.h" -+#include "yaffs_attribs.h" -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)) -+static inline uid_t ia_uid_read(const struct iattr *iattr) -+{ -+ return from_kuid(&init_user_ns, iattr->ia_uid); -+} -+ -+static inline gid_t ia_gid_read(const struct iattr *iattr) -+{ -+ return from_kgid(&init_user_ns, iattr->ia_gid); -+} -+ -+static inline void ia_uid_write(struct iattr *iattr, uid_t uid) -+{ -+ iattr->ia_uid = make_kuid(&init_user_ns, uid); -+} -+ -+static inline void ia_gid_write(struct iattr *iattr, gid_t gid) -+{ -+ iattr->ia_gid = make_kgid(&init_user_ns, gid); -+} -+#else -+static inline uid_t ia_uid_read(const struct iattr *iattr) -+{ -+ return iattr->ia_uid; -+} -+ -+static inline gid_t ia_gid_read(const struct iattr *inode) -+{ -+ return iattr->ia_gid; -+} -+ -+static inline void ia_uid_write(struct iattr *iattr, uid_t uid) -+{ -+ iattr->ia_uid = uid; -+} -+ -+static inline void ia_gid_write(struct iattr *iattr, gid_t gid) -+{ -+ iattr->ia_gid = gid; -+} -+#endif -+ -+void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh) -+{ -+ obj->yst_uid = oh->yst_uid; -+ obj->yst_gid = oh->yst_gid; -+ obj->yst_atime = oh->yst_atime; -+ obj->yst_mtime = oh->yst_mtime; -+ obj->yst_ctime = oh->yst_ctime; -+ obj->yst_rdev = oh->yst_rdev; -+} -+ -+void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj) -+{ -+ oh->yst_uid = obj->yst_uid; -+ oh->yst_gid = obj->yst_gid; -+ oh->yst_atime = obj->yst_atime; -+ oh->yst_mtime = obj->yst_mtime; -+ oh->yst_ctime = obj->yst_ctime; -+ oh->yst_rdev = obj->yst_rdev; -+ -+} -+ -+void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c) -+{ -+ obj->yst_mtime = Y_CURRENT_TIME; -+ if (do_a) -+ obj->yst_atime = obj->yst_mtime; -+ if (do_c) -+ obj->yst_ctime = obj->yst_mtime; -+} -+ -+void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev) -+{ -+ yaffs_load_current_time(obj, 1, 1); -+ obj->yst_rdev = rdev; -+ obj->yst_uid = uid; -+ obj->yst_gid = gid; -+} -+ -+static loff_t yaffs_get_file_size(struct yaffs_obj *obj) -+{ -+ YCHAR *alias = NULL; -+ obj = yaffs_get_equivalent_obj(obj); -+ -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ return obj->variant.file_variant.file_size; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ alias = obj->variant.symlink_variant.alias; -+ if (!alias) -+ return 0; -+ return strnlen(alias, YAFFS_MAX_ALIAS_LENGTH); -+ default: -+ return 0; -+ } -+} -+ -+int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr) -+{ -+ unsigned int valid = attr->ia_valid; -+ -+ if (valid & ATTR_MODE) -+ obj->yst_mode = attr->ia_mode; -+ if (valid & ATTR_UID) -+ obj->yst_uid = ia_uid_read(attr); -+ if (valid & ATTR_GID) -+ obj->yst_gid = ia_gid_read(attr); -+ -+ if (valid & ATTR_ATIME) -+ obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime); -+ if (valid & ATTR_CTIME) -+ obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime); -+ if (valid & ATTR_MTIME) -+ obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); -+ -+ if (valid & ATTR_SIZE) -+ yaffs_resize_file(obj, attr->ia_size); -+ -+ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); -+ -+ return YAFFS_OK; -+ -+} -+ -+int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr) -+{ -+ unsigned int valid = 0; -+ -+ attr->ia_mode = obj->yst_mode; -+ valid |= ATTR_MODE; -+ ia_uid_write(attr, obj->yst_uid); -+ valid |= ATTR_UID; -+ ia_gid_write(attr, obj->yst_gid); -+ valid |= ATTR_GID; -+ -+ Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime; -+ valid |= ATTR_ATIME; -+ Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime; -+ valid |= ATTR_CTIME; -+ Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; -+ valid |= ATTR_MTIME; -+ -+ attr->ia_size = yaffs_get_file_size(obj); -+ valid |= ATTR_SIZE; -+ -+ attr->ia_valid = valid; -+ -+ return YAFFS_OK; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.h linux-3.15-rc5/fs/yaffs2/yaffs_attribs.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_attribs.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,28 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_ATTRIBS_H__ -+#define __YAFFS_ATTRIBS_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh); -+void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj); -+void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev); -+void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c); -+int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr); -+int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.c linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,97 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_bitmap.h" -+#include "yaffs_trace.h" -+/* -+ * Chunk bitmap manipulations -+ */ -+ -+static inline u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk) -+{ -+ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "BlockBits block %d is not valid", -+ blk); -+ BUG(); -+ } -+ return dev->chunk_bits + -+ (dev->chunk_bit_stride * (blk - dev->internal_start_block)); -+} -+ -+void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk) -+{ -+ if (blk < dev->internal_start_block || blk > dev->internal_end_block || -+ chunk < 0 || chunk >= dev->param.chunks_per_block) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "Chunk Id (%d:%d) invalid", -+ blk, chunk); -+ BUG(); -+ } -+} -+ -+void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk) -+{ -+ u8 *blk_bits = yaffs_block_bits(dev, blk); -+ -+ memset(blk_bits, 0, dev->chunk_bit_stride); -+} -+ -+void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) -+{ -+ u8 *blk_bits = yaffs_block_bits(dev, blk); -+ -+ yaffs_verify_chunk_bit_id(dev, blk, chunk); -+ blk_bits[chunk / 8] &= ~(1 << (chunk & 7)); -+} -+ -+void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) -+{ -+ u8 *blk_bits = yaffs_block_bits(dev, blk); -+ -+ yaffs_verify_chunk_bit_id(dev, blk, chunk); -+ blk_bits[chunk / 8] |= (1 << (chunk & 7)); -+} -+ -+int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) -+{ -+ u8 *blk_bits = yaffs_block_bits(dev, blk); -+ -+ yaffs_verify_chunk_bit_id(dev, blk, chunk); -+ return (blk_bits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; -+} -+ -+int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk) -+{ -+ u8 *blk_bits = yaffs_block_bits(dev, blk); -+ int i; -+ -+ for (i = 0; i < dev->chunk_bit_stride; i++) { -+ if (*blk_bits) -+ return 1; -+ blk_bits++; -+ } -+ return 0; -+} -+ -+int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk) -+{ -+ u8 *blk_bits = yaffs_block_bits(dev, blk); -+ int i; -+ int n = 0; -+ -+ for (i = 0; i < dev->chunk_bit_stride; i++, blk_bits++) -+ n += hweight8(*blk_bits); -+ -+ return n; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.h linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,33 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+/* -+ * Chunk bitmap manipulations -+ */ -+ -+#ifndef __YAFFS_BITMAP_H__ -+#define __YAFFS_BITMAP_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk); -+void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk); -+void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); -+void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); -+int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); -+int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk); -+int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.c linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,474 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_checkptrw.h" -+#include "yaffs_getblockinfo.h" -+ -+struct yaffs_checkpt_chunk_hdr { -+ int version; -+ int seq; -+ u32 sum; -+ u32 xor; -+} ; -+ -+ -+static int apply_chunk_offset(struct yaffs_dev *dev, int chunk) -+{ -+ return chunk - dev->chunk_offset; -+} -+ -+static int apply_block_offset(struct yaffs_dev *dev, int block) -+{ -+ return block - dev->block_offset; -+} -+ -+static void yaffs2_checkpt_init_chunk_hdr(struct yaffs_dev *dev) -+{ -+ struct yaffs_checkpt_chunk_hdr hdr; -+ -+ hdr.version = YAFFS_CHECKPOINT_VERSION; -+ hdr.seq = dev->checkpt_page_seq; -+ hdr.sum = dev->checkpt_sum; -+ hdr.xor = dev->checkpt_xor; -+ -+ dev->checkpt_byte_offs = sizeof(hdr); -+ -+ memcpy(dev->checkpt_buffer, &hdr, sizeof(hdr)); -+} -+ -+static int yaffs2_checkpt_check_chunk_hdr(struct yaffs_dev *dev) -+{ -+ struct yaffs_checkpt_chunk_hdr hdr; -+ -+ memcpy(&hdr, dev->checkpt_buffer, sizeof(hdr)); -+ -+ dev->checkpt_byte_offs = sizeof(hdr); -+ -+ return hdr.version == YAFFS_CHECKPOINT_VERSION && -+ hdr.seq == dev->checkpt_page_seq && -+ hdr.sum == dev->checkpt_sum && -+ hdr.xor == dev->checkpt_xor; -+} -+ -+static int yaffs2_checkpt_space_ok(struct yaffs_dev *dev) -+{ -+ int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks; -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "checkpt blocks_avail = %d", blocks_avail); -+ -+ return (blocks_avail <= 0) ? 0 : 1; -+} -+ -+static int yaffs_checkpt_erase(struct yaffs_dev *dev) -+{ -+ int i; -+ -+ if (!dev->drv.drv_erase_fn) -+ return 0; -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "checking blocks %d to %d", -+ dev->internal_start_block, dev->internal_end_block); -+ -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, i); -+ int offset_i = apply_block_offset(dev, i); -+ int result; -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "erasing checkpt block %d", i); -+ -+ dev->n_erasures++; -+ -+ result = dev->drv.drv_erase_fn(dev, offset_i); -+ if(result) { -+ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; -+ dev->n_erased_blocks++; -+ dev->n_free_chunks += -+ dev->param.chunks_per_block; -+ } else { -+ dev->drv.drv_mark_bad_fn(dev, offset_i); -+ bi->block_state = YAFFS_BLOCK_STATE_DEAD; -+ } -+ } -+ } -+ -+ dev->blocks_in_checkpt = 0; -+ -+ return 1; -+} -+ -+static void yaffs2_checkpt_find_erased_block(struct yaffs_dev *dev) -+{ -+ int i; -+ int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks; -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "allocating checkpt block: erased %d reserved %d avail %d next %d ", -+ dev->n_erased_blocks, dev->param.n_reserved_blocks, -+ blocks_avail, dev->checkpt_next_block); -+ -+ if (dev->checkpt_next_block >= 0 && -+ dev->checkpt_next_block <= dev->internal_end_block && -+ blocks_avail > 0) { -+ -+ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; -+ i++) { -+ struct yaffs_block_info *bi; -+ -+ bi = yaffs_get_block_info(dev, i); -+ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { -+ dev->checkpt_next_block = i + 1; -+ dev->checkpt_cur_block = i; -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "allocating checkpt block %d", i); -+ return; -+ } -+ } -+ } -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, "out of checkpt blocks"); -+ -+ dev->checkpt_next_block = -1; -+ dev->checkpt_cur_block = -1; -+} -+ -+static void yaffs2_checkpt_find_block(struct yaffs_dev *dev) -+{ -+ int i; -+ struct yaffs_ext_tags tags; -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "find next checkpt block: start: blocks %d next %d", -+ dev->blocks_in_checkpt, dev->checkpt_next_block); -+ -+ if (dev->blocks_in_checkpt < dev->checkpt_max_blocks) -+ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; -+ i++) { -+ int chunk = i * dev->param.chunks_per_block; -+ enum yaffs_block_state state; -+ u32 seq; -+ -+ dev->tagger.read_chunk_tags_fn(dev, -+ apply_chunk_offset(dev, chunk), -+ NULL, &tags); -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "find next checkpt block: search: block %d state %d oid %d seq %d eccr %d", -+ i, (int) state, -+ tags.obj_id, tags.seq_number, -+ tags.ecc_result); -+ -+ if (tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) -+ continue; -+ -+ dev->tagger.query_block_fn(dev, -+ apply_block_offset(dev, i), -+ &state, &seq); -+ if (state == YAFFS_BLOCK_STATE_DEAD) -+ continue; -+ -+ /* Right kind of block */ -+ dev->checkpt_next_block = tags.obj_id; -+ dev->checkpt_cur_block = i; -+ dev->checkpt_block_list[dev->blocks_in_checkpt] = i; -+ dev->blocks_in_checkpt++; -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "found checkpt block %d", i); -+ return; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, "found no more checkpt blocks"); -+ -+ dev->checkpt_next_block = -1; -+ dev->checkpt_cur_block = -1; -+} -+ -+int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing) -+{ -+ int i; -+ -+ dev->checkpt_open_write = writing; -+ -+ /* Got the functions we need? */ -+ if (!dev->tagger.write_chunk_tags_fn || -+ !dev->tagger.read_chunk_tags_fn || -+ !dev->drv.drv_erase_fn || -+ !dev->drv.drv_mark_bad_fn) -+ return 0; -+ -+ if (writing && !yaffs2_checkpt_space_ok(dev)) -+ return 0; -+ -+ if (!dev->checkpt_buffer) -+ dev->checkpt_buffer = -+ kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); -+ if (!dev->checkpt_buffer) -+ return 0; -+ -+ dev->checkpt_page_seq = 0; -+ dev->checkpt_byte_count = 0; -+ dev->checkpt_sum = 0; -+ dev->checkpt_xor = 0; -+ dev->checkpt_cur_block = -1; -+ dev->checkpt_cur_chunk = -1; -+ dev->checkpt_next_block = dev->internal_start_block; -+ -+ if (writing) { -+ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); -+ yaffs2_checkpt_init_chunk_hdr(dev); -+ return yaffs_checkpt_erase(dev); -+ } -+ -+ /* Opening for a read */ -+ /* Set to a value that will kick off a read */ -+ dev->checkpt_byte_offs = dev->data_bytes_per_chunk; -+ /* A checkpoint block list of 1 checkpoint block per 16 block is -+ * (hopefully) going to be way more than we need */ -+ dev->blocks_in_checkpt = 0; -+ dev->checkpt_max_blocks = -+ (dev->internal_end_block - dev->internal_start_block) / 16 + 2; -+ dev->checkpt_block_list = -+ kmalloc(sizeof(int) * dev->checkpt_max_blocks, GFP_NOFS); -+ -+ if (!dev->checkpt_block_list) -+ return 0; -+ -+ for (i = 0; i < dev->checkpt_max_blocks; i++) -+ dev->checkpt_block_list[i] = -1; -+ -+ return 1; -+} -+ -+int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum) -+{ -+ u32 composite_sum; -+ -+ composite_sum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xff); -+ *sum = composite_sum; -+ return 1; -+} -+ -+static int yaffs2_checkpt_flush_buffer(struct yaffs_dev *dev) -+{ -+ int chunk; -+ int offset_chunk; -+ struct yaffs_ext_tags tags; -+ -+ if (dev->checkpt_cur_block < 0) { -+ yaffs2_checkpt_find_erased_block(dev); -+ dev->checkpt_cur_chunk = 0; -+ } -+ -+ if (dev->checkpt_cur_block < 0) -+ return 0; -+ -+ tags.is_deleted = 0; -+ tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */ -+ tags.chunk_id = dev->checkpt_page_seq + 1; -+ tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA; -+ tags.n_bytes = dev->data_bytes_per_chunk; -+ if (dev->checkpt_cur_chunk == 0) { -+ /* First chunk we write for the block? Set block state to -+ checkpoint */ -+ struct yaffs_block_info *bi = -+ yaffs_get_block_info(dev, dev->checkpt_cur_block); -+ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; -+ dev->blocks_in_checkpt++; -+ } -+ -+ chunk = -+ dev->checkpt_cur_block * dev->param.chunks_per_block + -+ dev->checkpt_cur_chunk; -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "checkpoint wite buffer nand %d(%d:%d) objid %d chId %d", -+ chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, -+ tags.obj_id, tags.chunk_id); -+ -+ offset_chunk = apply_chunk_offset(dev, chunk); -+ -+ dev->n_page_writes++; -+ -+ dev->tagger.write_chunk_tags_fn(dev, offset_chunk, -+ dev->checkpt_buffer, &tags); -+ dev->checkpt_page_seq++; -+ dev->checkpt_cur_chunk++; -+ if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) { -+ dev->checkpt_cur_chunk = 0; -+ dev->checkpt_cur_block = -1; -+ } -+ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); -+ -+ yaffs2_checkpt_init_chunk_hdr(dev); -+ -+ -+ return 1; -+} -+ -+int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes) -+{ -+ int i = 0; -+ int ok = 1; -+ u8 *data_bytes = (u8 *) data; -+ -+ if (!dev->checkpt_buffer) -+ return 0; -+ -+ if (!dev->checkpt_open_write) -+ return -1; -+ -+ while (i < n_bytes && ok) { -+ dev->checkpt_buffer[dev->checkpt_byte_offs] = *data_bytes; -+ dev->checkpt_sum += *data_bytes; -+ dev->checkpt_xor ^= *data_bytes; -+ -+ dev->checkpt_byte_offs++; -+ i++; -+ data_bytes++; -+ dev->checkpt_byte_count++; -+ -+ if (dev->checkpt_byte_offs < 0 || -+ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) -+ ok = yaffs2_checkpt_flush_buffer(dev); -+ } -+ -+ return i; -+} -+ -+int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes) -+{ -+ int i = 0; -+ int ok = 1; -+ struct yaffs_ext_tags tags; -+ int chunk; -+ int offset_chunk; -+ u8 *data_bytes = (u8 *) data; -+ -+ if (!dev->checkpt_buffer) -+ return 0; -+ -+ if (dev->checkpt_open_write) -+ return -1; -+ -+ while (i < n_bytes && ok) { -+ -+ if (dev->checkpt_byte_offs < 0 || -+ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) { -+ -+ if (dev->checkpt_cur_block < 0) { -+ yaffs2_checkpt_find_block(dev); -+ dev->checkpt_cur_chunk = 0; -+ } -+ -+ if (dev->checkpt_cur_block < 0) { -+ ok = 0; -+ break; -+ } -+ -+ chunk = dev->checkpt_cur_block * -+ dev->param.chunks_per_block + -+ dev->checkpt_cur_chunk; -+ -+ offset_chunk = apply_chunk_offset(dev, chunk); -+ dev->n_page_reads++; -+ -+ /* read in the next chunk */ -+ dev->tagger.read_chunk_tags_fn(dev, -+ offset_chunk, -+ dev->checkpt_buffer, -+ &tags); -+ -+ if (tags.chunk_id != (dev->checkpt_page_seq + 1) || -+ tags.ecc_result > YAFFS_ECC_RESULT_FIXED || -+ tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) { -+ ok = 0; -+ break; -+ } -+ if(!yaffs2_checkpt_check_chunk_hdr(dev)) { -+ ok = 0; -+ break; -+ } -+ -+ dev->checkpt_page_seq++; -+ dev->checkpt_cur_chunk++; -+ -+ if (dev->checkpt_cur_chunk >= -+ dev->param.chunks_per_block) -+ dev->checkpt_cur_block = -1; -+ -+ } -+ -+ *data_bytes = dev->checkpt_buffer[dev->checkpt_byte_offs]; -+ dev->checkpt_sum += *data_bytes; -+ dev->checkpt_xor ^= *data_bytes; -+ dev->checkpt_byte_offs++; -+ i++; -+ data_bytes++; -+ dev->checkpt_byte_count++; -+ } -+ -+ return i; -+} -+ -+int yaffs_checkpt_close(struct yaffs_dev *dev) -+{ -+ int i; -+ -+ if (dev->checkpt_open_write) { -+ if (dev->checkpt_byte_offs != -+ sizeof(sizeof(struct yaffs_checkpt_chunk_hdr))) -+ yaffs2_checkpt_flush_buffer(dev); -+ } else if (dev->checkpt_block_list) { -+ for (i = 0; -+ i < dev->blocks_in_checkpt && -+ dev->checkpt_block_list[i] >= 0; i++) { -+ int blk = dev->checkpt_block_list[i]; -+ struct yaffs_block_info *bi = NULL; -+ -+ if (dev->internal_start_block <= blk && -+ blk <= dev->internal_end_block) -+ bi = yaffs_get_block_info(dev, blk); -+ if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY) -+ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; -+ } -+ kfree(dev->checkpt_block_list); -+ dev->checkpt_block_list = NULL; -+ } -+ -+ dev->n_free_chunks -= -+ dev->blocks_in_checkpt * dev->param.chunks_per_block; -+ dev->n_erased_blocks -= dev->blocks_in_checkpt; -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, "checkpoint byte count %d", -+ dev->checkpt_byte_count); -+ -+ if (dev->checkpt_buffer) { -+ /* free the buffer */ -+ kfree(dev->checkpt_buffer); -+ dev->checkpt_buffer = NULL; -+ return 1; -+ } else { -+ return 0; -+ } -+} -+ -+int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev) -+{ -+ /* Erase the checkpoint data */ -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "checkpoint invalidate of %d blocks", -+ dev->blocks_in_checkpt); -+ -+ return yaffs_checkpt_erase(dev); -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.h linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,33 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_CHECKPTRW_H__ -+#define __YAFFS_CHECKPTRW_H__ -+ -+#include "yaffs_guts.h" -+ -+int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing); -+ -+int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes); -+ -+int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes); -+ -+int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum); -+ -+int yaffs_checkpt_close(struct yaffs_dev *dev); -+ -+int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.c linux-3.15-rc5/fs/yaffs2/yaffs_ecc.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_ecc.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,281 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * This code implements the ECC algorithm used in SmartMedia. -+ * -+ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. -+ * The two unused bit are set to 1. -+ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two -+ * such ECC blocks are used on a 512-byte NAND page. -+ * -+ */ -+ -+#include "yportenv.h" -+ -+#include "yaffs_ecc.h" -+ -+/* Table generated by gen-ecc.c -+ * Using a table means we do not have to calculate p1..p4 and p1'..p4' -+ * for each byte of data. These are instead provided in a table in bits7..2. -+ * Bit 0 of each entry indicates whether the entry has an odd or even parity, -+ * and therefore this bytes influence on the line parity. -+ */ -+ -+static const unsigned char column_parity_table[] = { -+ 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, -+ 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, -+ 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, -+ 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, -+ 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, -+ 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, -+ 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, -+ 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, -+ 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, -+ 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, -+ 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, -+ 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, -+ 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, -+ 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, -+ 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, -+ 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, -+ 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, -+ 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, -+ 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, -+ 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, -+ 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, -+ 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, -+ 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, -+ 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, -+ 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, -+ 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, -+ 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, -+ 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, -+ 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, -+ 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, -+ 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, -+ 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, -+}; -+ -+ -+/* Calculate the ECC for a 256-byte block of data */ -+void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc) -+{ -+ unsigned int i; -+ unsigned char col_parity = 0; -+ unsigned char line_parity = 0; -+ unsigned char line_parity_prime = 0; -+ unsigned char t; -+ unsigned char b; -+ -+ for (i = 0; i < 256; i++) { -+ b = column_parity_table[*data++]; -+ col_parity ^= b; -+ -+ if (b & 0x01) { /* odd number of bits in the byte */ -+ line_parity ^= i; -+ line_parity_prime ^= ~i; -+ } -+ } -+ -+ ecc[2] = (~col_parity) | 0x03; -+ -+ t = 0; -+ if (line_parity & 0x80) -+ t |= 0x80; -+ if (line_parity_prime & 0x80) -+ t |= 0x40; -+ if (line_parity & 0x40) -+ t |= 0x20; -+ if (line_parity_prime & 0x40) -+ t |= 0x10; -+ if (line_parity & 0x20) -+ t |= 0x08; -+ if (line_parity_prime & 0x20) -+ t |= 0x04; -+ if (line_parity & 0x10) -+ t |= 0x02; -+ if (line_parity_prime & 0x10) -+ t |= 0x01; -+ ecc[1] = ~t; -+ -+ t = 0; -+ if (line_parity & 0x08) -+ t |= 0x80; -+ if (line_parity_prime & 0x08) -+ t |= 0x40; -+ if (line_parity & 0x04) -+ t |= 0x20; -+ if (line_parity_prime & 0x04) -+ t |= 0x10; -+ if (line_parity & 0x02) -+ t |= 0x08; -+ if (line_parity_prime & 0x02) -+ t |= 0x04; -+ if (line_parity & 0x01) -+ t |= 0x02; -+ if (line_parity_prime & 0x01) -+ t |= 0x01; -+ ecc[0] = ~t; -+ -+} -+ -+/* Correct the ECC on a 256 byte block of data */ -+ -+int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, -+ const unsigned char *test_ecc) -+{ -+ unsigned char d0, d1, d2; /* deltas */ -+ -+ d0 = read_ecc[0] ^ test_ecc[0]; -+ d1 = read_ecc[1] ^ test_ecc[1]; -+ d2 = read_ecc[2] ^ test_ecc[2]; -+ -+ if ((d0 | d1 | d2) == 0) -+ return 0; /* no error */ -+ -+ if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 && -+ ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 && -+ ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) { -+ /* Single bit (recoverable) error in data */ -+ -+ unsigned byte; -+ unsigned bit; -+ -+ bit = byte = 0; -+ -+ if (d1 & 0x80) -+ byte |= 0x80; -+ if (d1 & 0x20) -+ byte |= 0x40; -+ if (d1 & 0x08) -+ byte |= 0x20; -+ if (d1 & 0x02) -+ byte |= 0x10; -+ if (d0 & 0x80) -+ byte |= 0x08; -+ if (d0 & 0x20) -+ byte |= 0x04; -+ if (d0 & 0x08) -+ byte |= 0x02; -+ if (d0 & 0x02) -+ byte |= 0x01; -+ -+ if (d2 & 0x80) -+ bit |= 0x04; -+ if (d2 & 0x20) -+ bit |= 0x02; -+ if (d2 & 0x08) -+ bit |= 0x01; -+ -+ data[byte] ^= (1 << bit); -+ -+ return 1; /* Corrected the error */ -+ } -+ -+ if ((hweight8(d0) + hweight8(d1) + hweight8(d2)) == 1) { -+ /* Reccoverable error in ecc */ -+ -+ read_ecc[0] = test_ecc[0]; -+ read_ecc[1] = test_ecc[1]; -+ read_ecc[2] = test_ecc[2]; -+ -+ return 1; /* Corrected the error */ -+ } -+ -+ /* Unrecoverable error */ -+ -+ return -1; -+ -+} -+ -+/* -+ * ECCxxxOther does ECC calcs on arbitrary n bytes of data -+ */ -+void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, -+ struct yaffs_ecc_other *ecc_other) -+{ -+ unsigned int i; -+ unsigned char col_parity = 0; -+ unsigned line_parity = 0; -+ unsigned line_parity_prime = 0; -+ unsigned char b; -+ -+ for (i = 0; i < n_bytes; i++) { -+ b = column_parity_table[*data++]; -+ col_parity ^= b; -+ -+ if (b & 0x01) { -+ /* odd number of bits in the byte */ -+ line_parity ^= i; -+ line_parity_prime ^= ~i; -+ } -+ -+ } -+ -+ ecc_other->col_parity = (col_parity >> 2) & 0x3f; -+ ecc_other->line_parity = line_parity; -+ ecc_other->line_parity_prime = line_parity_prime; -+} -+ -+int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, -+ struct yaffs_ecc_other *read_ecc, -+ const struct yaffs_ecc_other *test_ecc) -+{ -+ unsigned char delta_col; /* column parity delta */ -+ unsigned delta_line; /* line parity delta */ -+ unsigned delta_line_prime; /* line parity delta */ -+ unsigned bit; -+ -+ delta_col = read_ecc->col_parity ^ test_ecc->col_parity; -+ delta_line = read_ecc->line_parity ^ test_ecc->line_parity; -+ delta_line_prime = -+ read_ecc->line_parity_prime ^ test_ecc->line_parity_prime; -+ -+ if ((delta_col | delta_line | delta_line_prime) == 0) -+ return 0; /* no error */ -+ -+ if (delta_line == ~delta_line_prime && -+ (((delta_col ^ (delta_col >> 1)) & 0x15) == 0x15)) { -+ /* Single bit (recoverable) error in data */ -+ -+ bit = 0; -+ -+ if (delta_col & 0x20) -+ bit |= 0x04; -+ if (delta_col & 0x08) -+ bit |= 0x02; -+ if (delta_col & 0x02) -+ bit |= 0x01; -+ -+ if (delta_line >= n_bytes) -+ return -1; -+ -+ data[delta_line] ^= (1 << bit); -+ -+ return 1; /* corrected */ -+ } -+ -+ if ((hweight32(delta_line) + -+ hweight32(delta_line_prime) + -+ hweight8(delta_col)) == 1) { -+ /* Reccoverable error in ecc */ -+ -+ *read_ecc = *test_ecc; -+ return 1; /* corrected */ -+ } -+ -+ /* Unrecoverable error */ -+ -+ return -1; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.h linux-3.15-rc5/fs/yaffs2/yaffs_ecc.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_ecc.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,44 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+/* -+ * This code implements the ECC algorithm used in SmartMedia. -+ * -+ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. -+ * The two unused bit are set to 1. -+ * The ECC can correct single bit errors in a 256-byte page of data. -+ * Thus, two such ECC blocks are used on a 512-byte NAND page. -+ * -+ */ -+ -+#ifndef __YAFFS_ECC_H__ -+#define __YAFFS_ECC_H__ -+ -+struct yaffs_ecc_other { -+ unsigned char col_parity; -+ unsigned line_parity; -+ unsigned line_parity_prime; -+}; -+ -+void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc); -+int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, -+ const unsigned char *test_ecc); -+ -+void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, -+ struct yaffs_ecc_other *ecc); -+int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, -+ struct yaffs_ecc_other *read_ecc, -+ const struct yaffs_ecc_other *test_ecc); -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_getblockinfo.h linux-3.15-rc5/fs/yaffs2/yaffs_getblockinfo.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_getblockinfo.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_getblockinfo.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,35 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_GETBLOCKINFO_H__ -+#define __YAFFS_GETBLOCKINFO_H__ -+ -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+ -+/* Function to manipulate block info */ -+static inline struct yaffs_block_info *yaffs_get_block_info(struct yaffs_dev -+ *dev, int blk) -+{ -+ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>> yaffs: get_block_info block %d is not valid", -+ blk); -+ BUG(); -+ } -+ return &dev->block_info[blk - dev->internal_start_block]; -+} -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.c linux-3.15-rc5/fs/yaffs2/yaffs_guts.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_guts.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,5146 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yportenv.h" -+#include "yaffs_trace.h" -+ -+#include "yaffs_guts.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_tagscompat.h" -+#include "yaffs_tagsmarshall.h" -+#include "yaffs_nand.h" -+#include "yaffs_yaffs1.h" -+#include "yaffs_yaffs2.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_verify.h" -+#include "yaffs_nand.h" -+#include "yaffs_packedtags2.h" -+#include "yaffs_nameval.h" -+#include "yaffs_allocator.h" -+#include "yaffs_attribs.h" -+#include "yaffs_summary.h" -+ -+/* Note YAFFS_GC_GOOD_ENOUGH must be <= YAFFS_GC_PASSIVE_THRESHOLD */ -+#define YAFFS_GC_GOOD_ENOUGH 2 -+#define YAFFS_GC_PASSIVE_THRESHOLD 4 -+ -+#include "yaffs_ecc.h" -+ -+/* Forward declarations */ -+ -+static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk, -+ const u8 *buffer, int n_bytes, int use_reserve); -+ -+static void yaffs_fix_null_name(struct yaffs_obj *obj, YCHAR *name, -+ int buffer_size); -+ -+/* Function to calculate chunk and offset */ -+ -+void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr, -+ int *chunk_out, u32 *offset_out) -+{ -+ int chunk; -+ u32 offset; -+ -+ chunk = (u32) (addr >> dev->chunk_shift); -+ -+ if (dev->chunk_div == 1) { -+ /* easy power of 2 case */ -+ offset = (u32) (addr & dev->chunk_mask); -+ } else { -+ /* Non power-of-2 case */ -+ -+ loff_t chunk_base; -+ -+ chunk /= dev->chunk_div; -+ -+ chunk_base = ((loff_t) chunk) * dev->data_bytes_per_chunk; -+ offset = (u32) (addr - chunk_base); -+ } -+ -+ *chunk_out = chunk; -+ *offset_out = offset; -+} -+ -+/* Function to return the number of shifts for a power of 2 greater than or -+ * equal to the given number -+ * Note we don't try to cater for all possible numbers and this does not have to -+ * be hellishly efficient. -+ */ -+ -+static inline u32 calc_shifts_ceiling(u32 x) -+{ -+ int extra_bits; -+ int shifts; -+ -+ shifts = extra_bits = 0; -+ -+ while (x > 1) { -+ if (x & 1) -+ extra_bits++; -+ x >>= 1; -+ shifts++; -+ } -+ -+ if (extra_bits) -+ shifts++; -+ -+ return shifts; -+} -+ -+/* Function to return the number of shifts to get a 1 in bit 0 -+ */ -+ -+static inline u32 calc_shifts(u32 x) -+{ -+ u32 shifts; -+ -+ shifts = 0; -+ -+ if (!x) -+ return 0; -+ -+ while (!(x & 1)) { -+ x >>= 1; -+ shifts++; -+ } -+ -+ return shifts; -+} -+ -+/* -+ * Temporary buffer manipulations. -+ */ -+ -+static int yaffs_init_tmp_buffers(struct yaffs_dev *dev) -+{ -+ int i; -+ u8 *buf = (u8 *) 1; -+ -+ memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer)); -+ -+ for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { -+ dev->temp_buffer[i].in_use = 0; -+ buf = kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); -+ dev->temp_buffer[i].buffer = buf; -+ } -+ -+ return buf ? YAFFS_OK : YAFFS_FAIL; -+} -+ -+u8 *yaffs_get_temp_buffer(struct yaffs_dev * dev) -+{ -+ int i; -+ -+ dev->temp_in_use++; -+ if (dev->temp_in_use > dev->max_temp) -+ dev->max_temp = dev->temp_in_use; -+ -+ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -+ if (dev->temp_buffer[i].in_use == 0) { -+ dev->temp_buffer[i].in_use = 1; -+ return dev->temp_buffer[i].buffer; -+ } -+ } -+ -+ yaffs_trace(YAFFS_TRACE_BUFFERS, "Out of temp buffers"); -+ /* -+ * If we got here then we have to allocate an unmanaged one -+ * This is not good. -+ */ -+ -+ dev->unmanaged_buffer_allocs++; -+ return kmalloc(dev->data_bytes_per_chunk, GFP_NOFS); -+ -+} -+ -+void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer) -+{ -+ int i; -+ -+ dev->temp_in_use--; -+ -+ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { -+ if (dev->temp_buffer[i].buffer == buffer) { -+ dev->temp_buffer[i].in_use = 0; -+ return; -+ } -+ } -+ -+ if (buffer) { -+ /* assume it is an unmanaged one. */ -+ yaffs_trace(YAFFS_TRACE_BUFFERS, -+ "Releasing unmanaged temp buffer"); -+ kfree(buffer); -+ dev->unmanaged_buffer_deallocs++; -+ } -+ -+} -+ -+/* -+ * Functions for robustisizing TODO -+ * -+ */ -+ -+static void yaffs_handle_chunk_wr_ok(struct yaffs_dev *dev, int nand_chunk, -+ const u8 *data, -+ const struct yaffs_ext_tags *tags) -+{ -+ (void) dev; -+ (void) nand_chunk; -+ (void) data; -+ (void) tags; -+} -+ -+static void yaffs_handle_chunk_update(struct yaffs_dev *dev, int nand_chunk, -+ const struct yaffs_ext_tags *tags) -+{ -+ (void) dev; -+ (void) nand_chunk; -+ (void) tags; -+} -+ -+void yaffs_handle_chunk_error(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi) -+{ -+ if (!bi->gc_prioritise) { -+ bi->gc_prioritise = 1; -+ dev->has_pending_prioritised_gc = 1; -+ bi->chunk_error_strikes++; -+ -+ if (bi->chunk_error_strikes > 3) { -+ bi->needs_retiring = 1; /* Too many stikes, so retire */ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: Block struck out"); -+ -+ } -+ } -+} -+ -+static void yaffs_handle_chunk_wr_error(struct yaffs_dev *dev, int nand_chunk, -+ int erased_ok) -+{ -+ int flash_block = nand_chunk / dev->param.chunks_per_block; -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); -+ -+ yaffs_handle_chunk_error(dev, bi); -+ -+ if (erased_ok) { -+ /* Was an actual write failure, -+ * so mark the block for retirement.*/ -+ bi->needs_retiring = 1; -+ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ "**>> Block %d needs retiring", flash_block); -+ } -+ -+ /* Delete the chunk */ -+ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); -+ yaffs_skip_rest_of_block(dev); -+} -+ -+/* -+ * Verification code -+ */ -+ -+/* -+ * Simple hash function. Needs to have a reasonable spread -+ */ -+ -+static inline int yaffs_hash_fn(int n) -+{ -+ if (n < 0) -+ n = -n; -+ return n % YAFFS_NOBJECT_BUCKETS; -+} -+ -+/* -+ * Access functions to useful fake objects. -+ * Note that root might have a presence in NAND if permissions are set. -+ */ -+ -+struct yaffs_obj *yaffs_root(struct yaffs_dev *dev) -+{ -+ return dev->root_dir; -+} -+ -+struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev) -+{ -+ return dev->lost_n_found; -+} -+ -+/* -+ * Erased NAND checking functions -+ */ -+ -+int yaffs_check_ff(u8 *buffer, int n_bytes) -+{ -+ /* Horrible, slow implementation */ -+ while (n_bytes--) { -+ if (*buffer != 0xff) -+ return 0; -+ buffer++; -+ } -+ return 1; -+} -+ -+static int yaffs_check_chunk_erased(struct yaffs_dev *dev, int nand_chunk) -+{ -+ int retval = YAFFS_OK; -+ u8 *data = yaffs_get_temp_buffer(dev); -+ struct yaffs_ext_tags tags; -+ int result; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags); -+ -+ if (tags.ecc_result > YAFFS_ECC_RESULT_NO_ERROR) -+ retval = YAFFS_FAIL; -+ -+ if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || -+ tags.chunk_used) { -+ yaffs_trace(YAFFS_TRACE_NANDACCESS, -+ "Chunk %d not erased", nand_chunk); -+ retval = YAFFS_FAIL; -+ } -+ -+ yaffs_release_temp_buffer(dev, data); -+ -+ return retval; -+ -+} -+ -+static int yaffs_verify_chunk_written(struct yaffs_dev *dev, -+ int nand_chunk, -+ const u8 *data, -+ struct yaffs_ext_tags *tags) -+{ -+ int retval = YAFFS_OK; -+ struct yaffs_ext_tags temp_tags; -+ u8 *buffer = yaffs_get_temp_buffer(dev); -+ int result; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, buffer, &temp_tags); -+ if (memcmp(buffer, data, dev->data_bytes_per_chunk) || -+ temp_tags.obj_id != tags->obj_id || -+ temp_tags.chunk_id != tags->chunk_id || -+ temp_tags.n_bytes != tags->n_bytes) -+ retval = YAFFS_FAIL; -+ -+ yaffs_release_temp_buffer(dev, buffer); -+ -+ return retval; -+} -+ -+ -+int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks) -+{ -+ int reserved_chunks; -+ int reserved_blocks = dev->param.n_reserved_blocks; -+ int checkpt_blocks; -+ -+ checkpt_blocks = yaffs_calc_checkpt_blocks_required(dev); -+ -+ reserved_chunks = -+ (reserved_blocks + checkpt_blocks) * dev->param.chunks_per_block; -+ -+ return (dev->n_free_chunks > (reserved_chunks + n_chunks)); -+} -+ -+static int yaffs_find_alloc_block(struct yaffs_dev *dev) -+{ -+ int i; -+ struct yaffs_block_info *bi; -+ -+ if (dev->n_erased_blocks < 1) { -+ /* Hoosterman we've got a problem. -+ * Can't get space to gc -+ */ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: no more erased blocks"); -+ -+ return -1; -+ } -+ -+ /* Find an empty block. */ -+ -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ dev->alloc_block_finder++; -+ if (dev->alloc_block_finder < dev->internal_start_block -+ || dev->alloc_block_finder > dev->internal_end_block) { -+ dev->alloc_block_finder = dev->internal_start_block; -+ } -+ -+ bi = yaffs_get_block_info(dev, dev->alloc_block_finder); -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { -+ bi->block_state = YAFFS_BLOCK_STATE_ALLOCATING; -+ dev->seq_number++; -+ bi->seq_number = dev->seq_number; -+ dev->n_erased_blocks--; -+ yaffs_trace(YAFFS_TRACE_ALLOCATE, -+ "Allocated block %d, seq %d, %d left" , -+ dev->alloc_block_finder, dev->seq_number, -+ dev->n_erased_blocks); -+ return dev->alloc_block_finder; -+ } -+ } -+ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs tragedy: no more erased blocks, but there should have been %d", -+ dev->n_erased_blocks); -+ -+ return -1; -+} -+ -+static int yaffs_alloc_chunk(struct yaffs_dev *dev, int use_reserver, -+ struct yaffs_block_info **block_ptr) -+{ -+ int ret_val; -+ struct yaffs_block_info *bi; -+ -+ if (dev->alloc_block < 0) { -+ /* Get next block to allocate off */ -+ dev->alloc_block = yaffs_find_alloc_block(dev); -+ dev->alloc_page = 0; -+ } -+ -+ if (!use_reserver && !yaffs_check_alloc_available(dev, 1)) { -+ /* No space unless we're allowed to use the reserve. */ -+ return -1; -+ } -+ -+ if (dev->n_erased_blocks < dev->param.n_reserved_blocks -+ && dev->alloc_page == 0) -+ yaffs_trace(YAFFS_TRACE_ALLOCATE, "Allocating reserve"); -+ -+ /* Next page please.... */ -+ if (dev->alloc_block >= 0) { -+ bi = yaffs_get_block_info(dev, dev->alloc_block); -+ -+ ret_val = (dev->alloc_block * dev->param.chunks_per_block) + -+ dev->alloc_page; -+ bi->pages_in_use++; -+ yaffs_set_chunk_bit(dev, dev->alloc_block, dev->alloc_page); -+ -+ dev->alloc_page++; -+ -+ dev->n_free_chunks--; -+ -+ /* If the block is full set the state to full */ -+ if (dev->alloc_page >= dev->param.chunks_per_block) { -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ dev->alloc_block = -1; -+ } -+ -+ if (block_ptr) -+ *block_ptr = bi; -+ -+ return ret_val; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!"); -+ -+ return -1; -+} -+ -+static int yaffs_get_erased_chunks(struct yaffs_dev *dev) -+{ -+ int n; -+ -+ n = dev->n_erased_blocks * dev->param.chunks_per_block; -+ -+ if (dev->alloc_block > 0) -+ n += (dev->param.chunks_per_block - dev->alloc_page); -+ -+ return n; -+ -+} -+ -+/* -+ * yaffs_skip_rest_of_block() skips over the rest of the allocation block -+ * if we don't want to write to it. -+ */ -+void yaffs_skip_rest_of_block(struct yaffs_dev *dev) -+{ -+ struct yaffs_block_info *bi; -+ -+ if (dev->alloc_block > 0) { -+ bi = yaffs_get_block_info(dev, dev->alloc_block); -+ if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING) { -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ dev->alloc_block = -1; -+ } -+ } -+} -+ -+static int yaffs_write_new_chunk(struct yaffs_dev *dev, -+ const u8 *data, -+ struct yaffs_ext_tags *tags, int use_reserver) -+{ -+ int attempts = 0; -+ int write_ok = 0; -+ int chunk; -+ -+ yaffs2_checkpt_invalidate(dev); -+ -+ do { -+ struct yaffs_block_info *bi = 0; -+ int erased_ok = 0; -+ -+ chunk = yaffs_alloc_chunk(dev, use_reserver, &bi); -+ if (chunk < 0) { -+ /* no space */ -+ break; -+ } -+ -+ /* First check this chunk is erased, if it needs -+ * checking. The checking policy (unless forced -+ * always on) is as follows: -+ * -+ * Check the first page we try to write in a block. -+ * If the check passes then we don't need to check any -+ * more. If the check fails, we check again... -+ * If the block has been erased, we don't need to check. -+ * -+ * However, if the block has been prioritised for gc, -+ * then we think there might be something odd about -+ * this block and stop using it. -+ * -+ * Rationale: We should only ever see chunks that have -+ * not been erased if there was a partially written -+ * chunk due to power loss. This checking policy should -+ * catch that case with very few checks and thus save a -+ * lot of checks that are most likely not needed. -+ * -+ * Mods to the above -+ * If an erase check fails or the write fails we skip the -+ * rest of the block. -+ */ -+ -+ /* let's give it a try */ -+ attempts++; -+ -+ if (dev->param.always_check_erased) -+ bi->skip_erased_check = 0; -+ -+ if (!bi->skip_erased_check) { -+ erased_ok = yaffs_check_chunk_erased(dev, chunk); -+ if (erased_ok != YAFFS_OK) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>> yaffs chunk %d was not erased", -+ chunk); -+ -+ /* If not erased, delete this one, -+ * skip rest of block and -+ * try another chunk */ -+ yaffs_chunk_del(dev, chunk, 1, __LINE__); -+ yaffs_skip_rest_of_block(dev); -+ continue; -+ } -+ } -+ -+ write_ok = yaffs_wr_chunk_tags_nand(dev, chunk, data, tags); -+ -+ if (!bi->skip_erased_check) -+ write_ok = -+ yaffs_verify_chunk_written(dev, chunk, data, tags); -+ -+ if (write_ok != YAFFS_OK) { -+ /* Clean up aborted write, skip to next block and -+ * try another chunk */ -+ yaffs_handle_chunk_wr_error(dev, chunk, erased_ok); -+ continue; -+ } -+ -+ bi->skip_erased_check = 1; -+ -+ /* Copy the data into the robustification buffer */ -+ yaffs_handle_chunk_wr_ok(dev, chunk, data, tags); -+ -+ } while (write_ok != YAFFS_OK && -+ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); -+ -+ if (!write_ok) -+ chunk = -1; -+ -+ if (attempts > 1) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>> yaffs write required %d attempts", -+ attempts); -+ dev->n_retried_writes += (attempts - 1); -+ } -+ -+ return chunk; -+} -+ -+/* -+ * Block retiring for handling a broken block. -+ */ -+ -+static void yaffs_retire_block(struct yaffs_dev *dev, int flash_block) -+{ -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); -+ -+ yaffs2_checkpt_invalidate(dev); -+ -+ yaffs2_clear_oldest_dirty_seq(dev, bi); -+ -+ if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) { -+ if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: Failed to mark bad and erase block %d", -+ flash_block); -+ } else { -+ struct yaffs_ext_tags tags; -+ int chunk_id = -+ flash_block * dev->param.chunks_per_block; -+ -+ u8 *buffer = yaffs_get_temp_buffer(dev); -+ -+ memset(buffer, 0xff, dev->data_bytes_per_chunk); -+ memset(&tags, 0, sizeof(tags)); -+ tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK; -+ if (dev->tagger.write_chunk_tags_fn(dev, chunk_id - -+ dev->chunk_offset, -+ buffer, -+ &tags) != YAFFS_OK) -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: Failed to write bad block marker to block %d", -+ flash_block); -+ -+ yaffs_release_temp_buffer(dev, buffer); -+ } -+ } -+ -+ bi->block_state = YAFFS_BLOCK_STATE_DEAD; -+ bi->gc_prioritise = 0; -+ bi->needs_retiring = 0; -+ -+ dev->n_retired_blocks++; -+} -+ -+/*---------------- Name handling functions ------------*/ -+ -+static u16 yaffs_calc_name_sum(const YCHAR *name) -+{ -+ u16 sum = 0; -+ u16 i = 1; -+ -+ if (!name) -+ return 0; -+ -+ while ((*name) && i < (YAFFS_MAX_NAME_LENGTH / 2)) { -+ -+ /* 0x1f mask is case insensitive */ -+ sum += ((*name) & 0x1f) * i; -+ i++; -+ name++; -+ } -+ return sum; -+} -+ -+ -+void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR * name) -+{ -+ memset(obj->short_name, 0, sizeof(obj->short_name)); -+ -+ if (name && !name[0]) { -+ yaffs_fix_null_name(obj, obj->short_name, -+ YAFFS_SHORT_NAME_LENGTH); -+ name = obj->short_name; -+ } else if (name && -+ strnlen(name, YAFFS_SHORT_NAME_LENGTH + 1) <= -+ YAFFS_SHORT_NAME_LENGTH) { -+ strcpy(obj->short_name, name); -+ } -+ -+ obj->sum = yaffs_calc_name_sum(name); -+} -+ -+void yaffs_set_obj_name_from_oh(struct yaffs_obj *obj, -+ const struct yaffs_obj_hdr *oh) -+{ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ YCHAR tmp_name[YAFFS_MAX_NAME_LENGTH + 1]; -+ memset(tmp_name, 0, sizeof(tmp_name)); -+ yaffs_load_name_from_oh(obj->my_dev, tmp_name, oh->name, -+ YAFFS_MAX_NAME_LENGTH + 1); -+ yaffs_set_obj_name(obj, tmp_name); -+#else -+ yaffs_set_obj_name(obj, oh->name); -+#endif -+} -+ -+loff_t yaffs_max_file_size(struct yaffs_dev *dev) -+{ -+ if(sizeof(loff_t) < 8) -+ return YAFFS_MAX_FILE_SIZE_32; -+ else -+ return ((loff_t) YAFFS_MAX_CHUNK_ID) * dev->data_bytes_per_chunk; -+} -+ -+/*-------------------- TNODES ------------------- -+ -+ * List of spare tnodes -+ * The list is hooked together using the first pointer -+ * in the tnode. -+ */ -+ -+struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev) -+{ -+ struct yaffs_tnode *tn = yaffs_alloc_raw_tnode(dev); -+ -+ if (tn) { -+ memset(tn, 0, dev->tnode_size); -+ dev->n_tnodes++; -+ } -+ -+ dev->checkpoint_blocks_required = 0; /* force recalculation */ -+ -+ return tn; -+} -+ -+/* FreeTnode frees up a tnode and puts it back on the free list */ -+static void yaffs_free_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn) -+{ -+ yaffs_free_raw_tnode(dev, tn); -+ dev->n_tnodes--; -+ dev->checkpoint_blocks_required = 0; /* force recalculation */ -+} -+ -+static void yaffs_deinit_tnodes_and_objs(struct yaffs_dev *dev) -+{ -+ yaffs_deinit_raw_tnodes_and_objs(dev); -+ dev->n_obj = 0; -+ dev->n_tnodes = 0; -+} -+ -+static void yaffs_load_tnode_0(struct yaffs_dev *dev, struct yaffs_tnode *tn, -+ unsigned pos, unsigned val) -+{ -+ u32 *map = (u32 *) tn; -+ u32 bit_in_map; -+ u32 bit_in_word; -+ u32 word_in_map; -+ u32 mask; -+ -+ pos &= YAFFS_TNODES_LEVEL0_MASK; -+ val >>= dev->chunk_grp_bits; -+ -+ bit_in_map = pos * dev->tnode_width; -+ word_in_map = bit_in_map / 32; -+ bit_in_word = bit_in_map & (32 - 1); -+ -+ mask = dev->tnode_mask << bit_in_word; -+ -+ map[word_in_map] &= ~mask; -+ map[word_in_map] |= (mask & (val << bit_in_word)); -+ -+ if (dev->tnode_width > (32 - bit_in_word)) { -+ bit_in_word = (32 - bit_in_word); -+ word_in_map++; -+ mask = -+ dev->tnode_mask >> bit_in_word; -+ map[word_in_map] &= ~mask; -+ map[word_in_map] |= (mask & (val >> bit_in_word)); -+ } -+} -+ -+u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, -+ unsigned pos) -+{ -+ u32 *map = (u32 *) tn; -+ u32 bit_in_map; -+ u32 bit_in_word; -+ u32 word_in_map; -+ u32 val; -+ -+ pos &= YAFFS_TNODES_LEVEL0_MASK; -+ -+ bit_in_map = pos * dev->tnode_width; -+ word_in_map = bit_in_map / 32; -+ bit_in_word = bit_in_map & (32 - 1); -+ -+ val = map[word_in_map] >> bit_in_word; -+ -+ if (dev->tnode_width > (32 - bit_in_word)) { -+ bit_in_word = (32 - bit_in_word); -+ word_in_map++; -+ val |= (map[word_in_map] << bit_in_word); -+ } -+ -+ val &= dev->tnode_mask; -+ val <<= dev->chunk_grp_bits; -+ -+ return val; -+} -+ -+/* ------------------- End of individual tnode manipulation -----------------*/ -+ -+/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ -+ * The look up tree is represented by the top tnode and the number of top_level -+ * in the tree. 0 means only the level 0 tnode is in the tree. -+ */ -+ -+/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ -+struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, -+ struct yaffs_file_var *file_struct, -+ u32 chunk_id) -+{ -+ struct yaffs_tnode *tn = file_struct->top; -+ u32 i; -+ int required_depth; -+ int level = file_struct->top_level; -+ -+ (void) dev; -+ -+ /* Check sane level and chunk Id */ -+ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) -+ return NULL; -+ -+ if (chunk_id > YAFFS_MAX_CHUNK_ID) -+ return NULL; -+ -+ /* First check we're tall enough (ie enough top_level) */ -+ -+ i = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; -+ required_depth = 0; -+ while (i) { -+ i >>= YAFFS_TNODES_INTERNAL_BITS; -+ required_depth++; -+ } -+ -+ if (required_depth > file_struct->top_level) -+ return NULL; /* Not tall enough, so we can't find it */ -+ -+ /* Traverse down to level 0 */ -+ while (level > 0 && tn) { -+ tn = tn->internal[(chunk_id >> -+ (YAFFS_TNODES_LEVEL0_BITS + -+ (level - 1) * -+ YAFFS_TNODES_INTERNAL_BITS)) & -+ YAFFS_TNODES_INTERNAL_MASK]; -+ level--; -+ } -+ -+ return tn; -+} -+ -+/* add_find_tnode_0 finds the level 0 tnode if it exists, -+ * otherwise first expands the tree. -+ * This happens in two steps: -+ * 1. If the tree isn't tall enough, then make it taller. -+ * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. -+ * -+ * Used when modifying the tree. -+ * -+ * If the tn argument is NULL, then a fresh tnode will be added otherwise the -+ * specified tn will be plugged into the ttree. -+ */ -+ -+struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, -+ struct yaffs_file_var *file_struct, -+ u32 chunk_id, -+ struct yaffs_tnode *passed_tn) -+{ -+ int required_depth; -+ int i; -+ int l; -+ struct yaffs_tnode *tn; -+ u32 x; -+ -+ /* Check sane level and page Id */ -+ if (file_struct->top_level < 0 || -+ file_struct->top_level > YAFFS_TNODES_MAX_LEVEL) -+ return NULL; -+ -+ if (chunk_id > YAFFS_MAX_CHUNK_ID) -+ return NULL; -+ -+ /* First check we're tall enough (ie enough top_level) */ -+ -+ x = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; -+ required_depth = 0; -+ while (x) { -+ x >>= YAFFS_TNODES_INTERNAL_BITS; -+ required_depth++; -+ } -+ -+ if (required_depth > file_struct->top_level) { -+ /* Not tall enough, gotta make the tree taller */ -+ for (i = file_struct->top_level; i < required_depth; i++) { -+ -+ tn = yaffs_get_tnode(dev); -+ -+ if (tn) { -+ tn->internal[0] = file_struct->top; -+ file_struct->top = tn; -+ file_struct->top_level++; -+ } else { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs: no more tnodes"); -+ return NULL; -+ } -+ } -+ } -+ -+ /* Traverse down to level 0, adding anything we need */ -+ -+ l = file_struct->top_level; -+ tn = file_struct->top; -+ -+ if (l > 0) { -+ while (l > 0 && tn) { -+ x = (chunk_id >> -+ (YAFFS_TNODES_LEVEL0_BITS + -+ (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & -+ YAFFS_TNODES_INTERNAL_MASK; -+ -+ if ((l > 1) && !tn->internal[x]) { -+ /* Add missing non-level-zero tnode */ -+ tn->internal[x] = yaffs_get_tnode(dev); -+ if (!tn->internal[x]) -+ return NULL; -+ } else if (l == 1) { -+ /* Looking from level 1 at level 0 */ -+ if (passed_tn) { -+ /* If we already have one, release it */ -+ if (tn->internal[x]) -+ yaffs_free_tnode(dev, -+ tn->internal[x]); -+ tn->internal[x] = passed_tn; -+ -+ } else if (!tn->internal[x]) { -+ /* Don't have one, none passed in */ -+ tn->internal[x] = yaffs_get_tnode(dev); -+ if (!tn->internal[x]) -+ return NULL; -+ } -+ } -+ -+ tn = tn->internal[x]; -+ l--; -+ } -+ } else { -+ /* top is level 0 */ -+ if (passed_tn) { -+ memcpy(tn, passed_tn, -+ (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8); -+ yaffs_free_tnode(dev, passed_tn); -+ } -+ } -+ -+ return tn; -+} -+ -+static int yaffs_tags_match(const struct yaffs_ext_tags *tags, int obj_id, -+ int chunk_obj) -+{ -+ return (tags->chunk_id == chunk_obj && -+ tags->obj_id == obj_id && -+ !tags->is_deleted) ? 1 : 0; -+ -+} -+ -+static int yaffs_find_chunk_in_group(struct yaffs_dev *dev, int the_chunk, -+ struct yaffs_ext_tags *tags, int obj_id, -+ int inode_chunk) -+{ -+ int j; -+ -+ for (j = 0; the_chunk && j < dev->chunk_grp_size; j++) { -+ if (yaffs_check_chunk_bit -+ (dev, the_chunk / dev->param.chunks_per_block, -+ the_chunk % dev->param.chunks_per_block)) { -+ -+ if (dev->chunk_grp_size == 1) -+ return the_chunk; -+ else { -+ yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL, -+ tags); -+ if (yaffs_tags_match(tags, -+ obj_id, inode_chunk)) { -+ /* found it; */ -+ return the_chunk; -+ } -+ } -+ } -+ the_chunk++; -+ } -+ return -1; -+} -+ -+int yaffs_find_chunk_in_file(struct yaffs_obj *in, int inode_chunk, -+ struct yaffs_ext_tags *tags) -+{ -+ /*Get the Tnode, then get the level 0 offset chunk offset */ -+ struct yaffs_tnode *tn; -+ int the_chunk = -1; -+ struct yaffs_ext_tags local_tags; -+ int ret_val = -1; -+ struct yaffs_dev *dev = in->my_dev; -+ -+ if (!tags) { -+ /* Passed a NULL, so use our own tags space */ -+ tags = &local_tags; -+ } -+ -+ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); -+ -+ if (!tn) -+ return ret_val; -+ -+ the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); -+ -+ ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, -+ inode_chunk); -+ return ret_val; -+} -+ -+static int yaffs_find_del_file_chunk(struct yaffs_obj *in, int inode_chunk, -+ struct yaffs_ext_tags *tags) -+{ -+ /* Get the Tnode, then get the level 0 offset chunk offset */ -+ struct yaffs_tnode *tn; -+ int the_chunk = -1; -+ struct yaffs_ext_tags local_tags; -+ struct yaffs_dev *dev = in->my_dev; -+ int ret_val = -1; -+ -+ if (!tags) { -+ /* Passed a NULL, so use our own tags space */ -+ tags = &local_tags; -+ } -+ -+ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); -+ -+ if (!tn) -+ return ret_val; -+ -+ the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); -+ -+ ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, -+ inode_chunk); -+ -+ /* Delete the entry in the filestructure (if found) */ -+ if (ret_val != -1) -+ yaffs_load_tnode_0(dev, tn, inode_chunk, 0); -+ -+ return ret_val; -+} -+ -+int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk, -+ int nand_chunk, int in_scan) -+{ -+ /* NB in_scan is zero unless scanning. -+ * For forward scanning, in_scan is > 0; -+ * for backward scanning in_scan is < 0 -+ * -+ * nand_chunk = 0 is a dummy insert to make sure the tnodes are there. -+ */ -+ -+ struct yaffs_tnode *tn; -+ struct yaffs_dev *dev = in->my_dev; -+ int existing_cunk; -+ struct yaffs_ext_tags existing_tags; -+ struct yaffs_ext_tags new_tags; -+ unsigned existing_serial, new_serial; -+ -+ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) { -+ /* Just ignore an attempt at putting a chunk into a non-file -+ * during scanning. -+ * If it is not during Scanning then something went wrong! -+ */ -+ if (!in_scan) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy:attempt to put data chunk into a non-file" -+ ); -+ BUG(); -+ } -+ -+ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); -+ return YAFFS_OK; -+ } -+ -+ tn = yaffs_add_find_tnode_0(dev, -+ &in->variant.file_variant, -+ inode_chunk, NULL); -+ if (!tn) -+ return YAFFS_FAIL; -+ -+ if (!nand_chunk) -+ /* Dummy insert, bail now */ -+ return YAFFS_OK; -+ -+ existing_cunk = yaffs_get_group_base(dev, tn, inode_chunk); -+ -+ if (in_scan != 0) { -+ /* If we're scanning then we need to test for duplicates -+ * NB This does not need to be efficient since it should only -+ * happen when the power fails during a write, then only one -+ * chunk should ever be affected. -+ * -+ * Correction for YAFFS2: This could happen quite a lot and we -+ * need to think about efficiency! TODO -+ * Update: For backward scanning we don't need to re-read tags -+ * so this is quite cheap. -+ */ -+ -+ if (existing_cunk > 0) { -+ /* NB Right now existing chunk will not be real -+ * chunk_id if the chunk group size > 1 -+ * thus we have to do a FindChunkInFile to get the -+ * real chunk id. -+ * -+ * We have a duplicate now we need to decide which -+ * one to use: -+ * -+ * Backwards scanning YAFFS2: The old one is what -+ * we use, dump the new one. -+ * YAFFS1: Get both sets of tags and compare serial -+ * numbers. -+ */ -+ -+ if (in_scan > 0) { -+ /* Only do this for forward scanning */ -+ yaffs_rd_chunk_tags_nand(dev, -+ nand_chunk, -+ NULL, &new_tags); -+ -+ /* Do a proper find */ -+ existing_cunk = -+ yaffs_find_chunk_in_file(in, inode_chunk, -+ &existing_tags); -+ } -+ -+ if (existing_cunk <= 0) { -+ /*Hoosterman - how did this happen? */ -+ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: existing chunk < 0 in scan" -+ ); -+ -+ } -+ -+ /* NB The deleted flags should be false, otherwise -+ * the chunks will not be loaded during a scan -+ */ -+ -+ if (in_scan > 0) { -+ new_serial = new_tags.serial_number; -+ existing_serial = existing_tags.serial_number; -+ } -+ -+ if ((in_scan > 0) && -+ (existing_cunk <= 0 || -+ ((existing_serial + 1) & 3) == new_serial)) { -+ /* Forward scanning. -+ * Use new -+ * Delete the old one and drop through to -+ * update the tnode -+ */ -+ yaffs_chunk_del(dev, existing_cunk, 1, -+ __LINE__); -+ } else { -+ /* Backward scanning or we want to use the -+ * existing one -+ * Delete the new one and return early so that -+ * the tnode isn't changed -+ */ -+ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); -+ return YAFFS_OK; -+ } -+ } -+ -+ } -+ -+ if (existing_cunk == 0) -+ in->n_data_chunks++; -+ -+ yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk); -+ -+ return YAFFS_OK; -+} -+ -+static void yaffs_soft_del_chunk(struct yaffs_dev *dev, int chunk) -+{ -+ struct yaffs_block_info *the_block; -+ unsigned block_no; -+ -+ yaffs_trace(YAFFS_TRACE_DELETION, "soft delete chunk %d", chunk); -+ -+ block_no = chunk / dev->param.chunks_per_block; -+ the_block = yaffs_get_block_info(dev, block_no); -+ if (the_block) { -+ the_block->soft_del_pages++; -+ dev->n_free_chunks++; -+ yaffs2_update_oldest_dirty_seq(dev, block_no, the_block); -+ } -+} -+ -+/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all -+ * the chunks in the file. -+ * All soft deleting does is increment the block's softdelete count and pulls -+ * the chunk out of the tnode. -+ * Thus, essentially this is the same as DeleteWorker except that the chunks -+ * are soft deleted. -+ */ -+ -+static int yaffs_soft_del_worker(struct yaffs_obj *in, struct yaffs_tnode *tn, -+ u32 level, int chunk_offset) -+{ -+ int i; -+ int the_chunk; -+ int all_done = 1; -+ struct yaffs_dev *dev = in->my_dev; -+ -+ if (!tn) -+ return 1; -+ -+ if (level > 0) { -+ for (i = YAFFS_NTNODES_INTERNAL - 1; -+ all_done && i >= 0; -+ i--) { -+ if (tn->internal[i]) { -+ all_done = -+ yaffs_soft_del_worker(in, -+ tn->internal[i], -+ level - 1, -+ (chunk_offset << -+ YAFFS_TNODES_INTERNAL_BITS) -+ + i); -+ if (all_done) { -+ yaffs_free_tnode(dev, -+ tn->internal[i]); -+ tn->internal[i] = NULL; -+ } else { -+ /* Can this happen? */ -+ } -+ } -+ } -+ return (all_done) ? 1 : 0; -+ } -+ -+ /* level 0 */ -+ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { -+ the_chunk = yaffs_get_group_base(dev, tn, i); -+ if (the_chunk) { -+ yaffs_soft_del_chunk(dev, the_chunk); -+ yaffs_load_tnode_0(dev, tn, i, 0); -+ } -+ } -+ return 1; -+} -+ -+static void yaffs_remove_obj_from_dir(struct yaffs_obj *obj) -+{ -+ struct yaffs_dev *dev = obj->my_dev; -+ struct yaffs_obj *parent; -+ -+ yaffs_verify_obj_in_dir(obj); -+ parent = obj->parent; -+ -+ yaffs_verify_dir(parent); -+ -+ if (dev && dev->param.remove_obj_fn) -+ dev->param.remove_obj_fn(obj); -+ -+ list_del_init(&obj->siblings); -+ obj->parent = NULL; -+ -+ yaffs_verify_dir(parent); -+} -+ -+void yaffs_add_obj_to_dir(struct yaffs_obj *directory, struct yaffs_obj *obj) -+{ -+ if (!directory) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "tragedy: Trying to add an object to a null pointer directory" -+ ); -+ BUG(); -+ return; -+ } -+ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "tragedy: Trying to add an object to a non-directory" -+ ); -+ BUG(); -+ } -+ -+ if (obj->siblings.prev == NULL) { -+ /* Not initialised */ -+ BUG(); -+ } -+ -+ yaffs_verify_dir(directory); -+ -+ yaffs_remove_obj_from_dir(obj); -+ -+ /* Now add it */ -+ list_add(&obj->siblings, &directory->variant.dir_variant.children); -+ obj->parent = directory; -+ -+ if (directory == obj->my_dev->unlinked_dir -+ || directory == obj->my_dev->del_dir) { -+ obj->unlinked = 1; -+ obj->my_dev->n_unlinked_files++; -+ obj->rename_allowed = 0; -+ } -+ -+ yaffs_verify_dir(directory); -+ yaffs_verify_obj_in_dir(obj); -+} -+ -+static int yaffs_change_obj_name(struct yaffs_obj *obj, -+ struct yaffs_obj *new_dir, -+ const YCHAR *new_name, int force, int shadows) -+{ -+ int unlink_op; -+ int del_op; -+ struct yaffs_obj *existing_target; -+ -+ if (new_dir == NULL) -+ new_dir = obj->parent; /* use the old directory */ -+ -+ if (new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "tragedy: yaffs_change_obj_name: new_dir is not a directory" -+ ); -+ BUG(); -+ } -+ -+ unlink_op = (new_dir == obj->my_dev->unlinked_dir); -+ del_op = (new_dir == obj->my_dev->del_dir); -+ -+ existing_target = yaffs_find_by_name(new_dir, new_name); -+ -+ /* If the object is a file going into the unlinked directory, -+ * then it is OK to just stuff it in since duplicate names are OK. -+ * else only proceed if the new name does not exist and we're putting -+ * it into a directory. -+ */ -+ if (!(unlink_op || del_op || force || -+ shadows > 0 || !existing_target) || -+ new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) -+ return YAFFS_FAIL; -+ -+ yaffs_set_obj_name(obj, new_name); -+ obj->dirty = 1; -+ yaffs_add_obj_to_dir(new_dir, obj); -+ -+ if (unlink_op) -+ obj->unlinked = 1; -+ -+ /* If it is a deletion then we mark it as a shrink for gc */ -+ if (yaffs_update_oh(obj, new_name, 0, del_op, shadows, NULL) >= 0) -+ return YAFFS_OK; -+ -+ return YAFFS_FAIL; -+} -+ -+/*------------------------ Short Operations Cache ------------------------------ -+ * In many situations where there is no high level buffering a lot of -+ * reads might be short sequential reads, and a lot of writes may be short -+ * sequential writes. eg. scanning/writing a jpeg file. -+ * In these cases, a short read/write cache can provide a huge perfomance -+ * benefit with dumb-as-a-rock code. -+ * In Linux, the page cache provides read buffering and the short op cache -+ * provides write buffering. -+ * -+ * There are a small number (~10) of cache chunks per device so that we don't -+ * need a very intelligent search. -+ */ -+ -+static int yaffs_obj_cache_dirty(struct yaffs_obj *obj) -+{ -+ struct yaffs_dev *dev = obj->my_dev; -+ int i; -+ struct yaffs_cache *cache; -+ int n_caches = obj->my_dev->param.n_caches; -+ -+ for (i = 0; i < n_caches; i++) { -+ cache = &dev->cache[i]; -+ if (cache->object == obj && cache->dirty) -+ return 1; -+ } -+ -+ return 0; -+} -+ -+static void yaffs_flush_file_cache(struct yaffs_obj *obj) -+{ -+ struct yaffs_dev *dev = obj->my_dev; -+ int lowest = -99; /* Stop compiler whining. */ -+ int i; -+ struct yaffs_cache *cache; -+ int chunk_written = 0; -+ int n_caches = obj->my_dev->param.n_caches; -+ -+ if (n_caches < 1) -+ return; -+ do { -+ cache = NULL; -+ -+ /* Find the lowest dirty chunk for this object */ -+ for (i = 0; i < n_caches; i++) { -+ if (dev->cache[i].object == obj && -+ dev->cache[i].dirty) { -+ if (!cache || -+ dev->cache[i].chunk_id < lowest) { -+ cache = &dev->cache[i]; -+ lowest = cache->chunk_id; -+ } -+ } -+ } -+ -+ if (cache && !cache->locked) { -+ /* Write it out and free it up */ -+ chunk_written = -+ yaffs_wr_data_obj(cache->object, -+ cache->chunk_id, -+ cache->data, -+ cache->n_bytes, 1); -+ cache->dirty = 0; -+ cache->object = NULL; -+ } -+ } while (cache && chunk_written > 0); -+ -+ if (cache) -+ /* Hoosterman, disk full while writing cache out. */ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: no space during cache write"); -+} -+ -+/*yaffs_flush_whole_cache(dev) -+ * -+ * -+ */ -+ -+void yaffs_flush_whole_cache(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj; -+ int n_caches = dev->param.n_caches; -+ int i; -+ -+ /* Find a dirty object in the cache and flush it... -+ * until there are no further dirty objects. -+ */ -+ do { -+ obj = NULL; -+ for (i = 0; i < n_caches && !obj; i++) { -+ if (dev->cache[i].object && dev->cache[i].dirty) -+ obj = dev->cache[i].object; -+ } -+ if (obj) -+ yaffs_flush_file_cache(obj); -+ } while (obj); -+ -+} -+ -+/* Grab us a cache chunk for use. -+ * First look for an empty one. -+ * Then look for the least recently used non-dirty one. -+ * Then look for the least recently used dirty one...., flush and look again. -+ */ -+static struct yaffs_cache *yaffs_grab_chunk_worker(struct yaffs_dev *dev) -+{ -+ int i; -+ -+ if (dev->param.n_caches > 0) { -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (!dev->cache[i].object) -+ return &dev->cache[i]; -+ } -+ } -+ return NULL; -+} -+ -+static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev) -+{ -+ struct yaffs_cache *cache; -+ struct yaffs_obj *the_obj; -+ int usage; -+ int i; -+ int pushout; -+ -+ if (dev->param.n_caches < 1) -+ return NULL; -+ -+ /* Try find a non-dirty one... */ -+ -+ cache = yaffs_grab_chunk_worker(dev); -+ -+ if (!cache) { -+ /* They were all dirty, find the LRU object and flush -+ * its cache, then find again. -+ * NB what's here is not very accurate, -+ * we actually flush the object with the LRU chunk. -+ */ -+ -+ /* With locking we can't assume we can use entry zero, -+ * Set the_obj to a valid pointer for Coverity. */ -+ the_obj = dev->cache[0].object; -+ usage = -1; -+ cache = NULL; -+ pushout = -1; -+ -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].object && -+ !dev->cache[i].locked && -+ (dev->cache[i].last_use < usage || -+ !cache)) { -+ usage = dev->cache[i].last_use; -+ the_obj = dev->cache[i].object; -+ cache = &dev->cache[i]; -+ pushout = i; -+ } -+ } -+ -+ if (!cache || cache->dirty) { -+ /* Flush and try again */ -+ yaffs_flush_file_cache(the_obj); -+ cache = yaffs_grab_chunk_worker(dev); -+ } -+ } -+ return cache; -+} -+ -+/* Find a cached chunk */ -+static struct yaffs_cache *yaffs_find_chunk_cache(const struct yaffs_obj *obj, -+ int chunk_id) -+{ -+ struct yaffs_dev *dev = obj->my_dev; -+ int i; -+ -+ if (dev->param.n_caches < 1) -+ return NULL; -+ -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].object == obj && -+ dev->cache[i].chunk_id == chunk_id) { -+ dev->cache_hits++; -+ -+ return &dev->cache[i]; -+ } -+ } -+ return NULL; -+} -+ -+/* Mark the chunk for the least recently used algorithym */ -+static void yaffs_use_cache(struct yaffs_dev *dev, struct yaffs_cache *cache, -+ int is_write) -+{ -+ int i; -+ -+ if (dev->param.n_caches < 1) -+ return; -+ -+ if (dev->cache_last_use < 0 || -+ dev->cache_last_use > 100000000) { -+ /* Reset the cache usages */ -+ for (i = 1; i < dev->param.n_caches; i++) -+ dev->cache[i].last_use = 0; -+ -+ dev->cache_last_use = 0; -+ } -+ dev->cache_last_use++; -+ cache->last_use = dev->cache_last_use; -+ -+ if (is_write) -+ cache->dirty = 1; -+} -+ -+/* Invalidate a single cache page. -+ * Do this when a whole page gets written, -+ * ie the short cache for this page is no longer valid. -+ */ -+static void yaffs_invalidate_chunk_cache(struct yaffs_obj *object, int chunk_id) -+{ -+ struct yaffs_cache *cache; -+ -+ if (object->my_dev->param.n_caches > 0) { -+ cache = yaffs_find_chunk_cache(object, chunk_id); -+ -+ if (cache) -+ cache->object = NULL; -+ } -+} -+ -+/* Invalidate all the cache pages associated with this object -+ * Do this whenever ther file is deleted or resized. -+ */ -+static void yaffs_invalidate_whole_cache(struct yaffs_obj *in) -+{ -+ int i; -+ struct yaffs_dev *dev = in->my_dev; -+ -+ if (dev->param.n_caches > 0) { -+ /* Invalidate it. */ -+ for (i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].object == in) -+ dev->cache[i].object = NULL; -+ } -+ } -+} -+ -+static void yaffs_unhash_obj(struct yaffs_obj *obj) -+{ -+ int bucket; -+ struct yaffs_dev *dev = obj->my_dev; -+ -+ /* If it is still linked into the bucket list, free from the list */ -+ if (!list_empty(&obj->hash_link)) { -+ list_del_init(&obj->hash_link); -+ bucket = yaffs_hash_fn(obj->obj_id); -+ dev->obj_bucket[bucket].count--; -+ } -+} -+ -+/* FreeObject frees up a Object and puts it back on the free list */ -+static void yaffs_free_obj(struct yaffs_obj *obj) -+{ -+ struct yaffs_dev *dev; -+ -+ if (!obj) { -+ BUG(); -+ return; -+ } -+ dev = obj->my_dev; -+ yaffs_trace(YAFFS_TRACE_OS, "FreeObject %p inode %p", -+ obj, obj->my_inode); -+ if (obj->parent) -+ BUG(); -+ if (!list_empty(&obj->siblings)) -+ BUG(); -+ -+ if (obj->my_inode) { -+ /* We're still hooked up to a cached inode. -+ * Don't delete now, but mark for later deletion -+ */ -+ obj->defered_free = 1; -+ return; -+ } -+ -+ yaffs_unhash_obj(obj); -+ -+ yaffs_free_raw_obj(dev, obj); -+ dev->n_obj--; -+ dev->checkpoint_blocks_required = 0; /* force recalculation */ -+} -+ -+void yaffs_handle_defered_free(struct yaffs_obj *obj) -+{ -+ if (obj->defered_free) -+ yaffs_free_obj(obj); -+} -+ -+static int yaffs_generic_obj_del(struct yaffs_obj *in) -+{ -+ /* Iinvalidate the file's data in the cache, without flushing. */ -+ yaffs_invalidate_whole_cache(in); -+ -+ if (in->my_dev->param.is_yaffs2 && in->parent != in->my_dev->del_dir) { -+ /* Move to unlinked directory so we have a deletion record */ -+ yaffs_change_obj_name(in, in->my_dev->del_dir, _Y("deleted"), 0, -+ 0); -+ } -+ -+ yaffs_remove_obj_from_dir(in); -+ yaffs_chunk_del(in->my_dev, in->hdr_chunk, 1, __LINE__); -+ in->hdr_chunk = 0; -+ -+ yaffs_free_obj(in); -+ return YAFFS_OK; -+ -+} -+ -+static void yaffs_soft_del_file(struct yaffs_obj *obj) -+{ -+ if (!obj->deleted || -+ obj->variant_type != YAFFS_OBJECT_TYPE_FILE || -+ obj->soft_del) -+ return; -+ -+ if (obj->n_data_chunks <= 0) { -+ /* Empty file with no duplicate object headers, -+ * just delete it immediately */ -+ yaffs_free_tnode(obj->my_dev, obj->variant.file_variant.top); -+ obj->variant.file_variant.top = NULL; -+ yaffs_trace(YAFFS_TRACE_TRACING, -+ "yaffs: Deleting empty file %d", -+ obj->obj_id); -+ yaffs_generic_obj_del(obj); -+ } else { -+ yaffs_soft_del_worker(obj, -+ obj->variant.file_variant.top, -+ obj->variant. -+ file_variant.top_level, 0); -+ obj->soft_del = 1; -+ } -+} -+ -+/* Pruning removes any part of the file structure tree that is beyond the -+ * bounds of the file (ie that does not point to chunks). -+ * -+ * A file should only get pruned when its size is reduced. -+ * -+ * Before pruning, the chunks must be pulled from the tree and the -+ * level 0 tnode entries must be zeroed out. -+ * Could also use this for file deletion, but that's probably better handled -+ * by a special case. -+ * -+ * This function is recursive. For levels > 0 the function is called again on -+ * any sub-tree. For level == 0 we just check if the sub-tree has data. -+ * If there is no data in a subtree then it is pruned. -+ */ -+ -+static struct yaffs_tnode *yaffs_prune_worker(struct yaffs_dev *dev, -+ struct yaffs_tnode *tn, u32 level, -+ int del0) -+{ -+ int i; -+ int has_data; -+ -+ if (!tn) -+ return tn; -+ -+ has_data = 0; -+ -+ if (level > 0) { -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { -+ if (tn->internal[i]) { -+ tn->internal[i] = -+ yaffs_prune_worker(dev, -+ tn->internal[i], -+ level - 1, -+ (i == 0) ? del0 : 1); -+ } -+ -+ if (tn->internal[i]) -+ has_data++; -+ } -+ } else { -+ int tnode_size_u32 = dev->tnode_size / sizeof(u32); -+ u32 *map = (u32 *) tn; -+ -+ for (i = 0; !has_data && i < tnode_size_u32; i++) { -+ if (map[i]) -+ has_data++; -+ } -+ } -+ -+ if (has_data == 0 && del0) { -+ /* Free and return NULL */ -+ yaffs_free_tnode(dev, tn); -+ tn = NULL; -+ } -+ return tn; -+} -+ -+static int yaffs_prune_tree(struct yaffs_dev *dev, -+ struct yaffs_file_var *file_struct) -+{ -+ int i; -+ int has_data; -+ int done = 0; -+ struct yaffs_tnode *tn; -+ -+ if (file_struct->top_level < 1) -+ return YAFFS_OK; -+ -+ file_struct->top = -+ yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0); -+ -+ /* Now we have a tree with all the non-zero branches NULL but -+ * the height is the same as it was. -+ * Let's see if we can trim internal tnodes to shorten the tree. -+ * We can do this if only the 0th element in the tnode is in use -+ * (ie all the non-zero are NULL) -+ */ -+ -+ while (file_struct->top_level && !done) { -+ tn = file_struct->top; -+ -+ has_data = 0; -+ for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { -+ if (tn->internal[i]) -+ has_data++; -+ } -+ -+ if (!has_data) { -+ file_struct->top = tn->internal[0]; -+ file_struct->top_level--; -+ yaffs_free_tnode(dev, tn); -+ } else { -+ done = 1; -+ } -+ } -+ -+ return YAFFS_OK; -+} -+ -+/*-------------------- End of File Structure functions.-------------------*/ -+ -+/* alloc_empty_obj gets us a clean Object.*/ -+static struct yaffs_obj *yaffs_alloc_empty_obj(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj = yaffs_alloc_raw_obj(dev); -+ -+ if (!obj) -+ return obj; -+ -+ dev->n_obj++; -+ -+ /* Now sweeten it up... */ -+ -+ memset(obj, 0, sizeof(struct yaffs_obj)); -+ obj->being_created = 1; -+ -+ obj->my_dev = dev; -+ obj->hdr_chunk = 0; -+ obj->variant_type = YAFFS_OBJECT_TYPE_UNKNOWN; -+ INIT_LIST_HEAD(&(obj->hard_links)); -+ INIT_LIST_HEAD(&(obj->hash_link)); -+ INIT_LIST_HEAD(&obj->siblings); -+ -+ /* Now make the directory sane */ -+ if (dev->root_dir) { -+ obj->parent = dev->root_dir; -+ list_add(&(obj->siblings), -+ &dev->root_dir->variant.dir_variant.children); -+ } -+ -+ /* Add it to the lost and found directory. -+ * NB Can't put root or lost-n-found in lost-n-found so -+ * check if lost-n-found exists first -+ */ -+ if (dev->lost_n_found) -+ yaffs_add_obj_to_dir(dev->lost_n_found, obj); -+ -+ obj->being_created = 0; -+ -+ dev->checkpoint_blocks_required = 0; /* force recalculation */ -+ -+ return obj; -+} -+ -+static int yaffs_find_nice_bucket(struct yaffs_dev *dev) -+{ -+ int i; -+ int l = 999; -+ int lowest = 999999; -+ -+ /* Search for the shortest list or one that -+ * isn't too long. -+ */ -+ -+ for (i = 0; i < 10 && lowest > 4; i++) { -+ dev->bucket_finder++; -+ dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS; -+ if (dev->obj_bucket[dev->bucket_finder].count < lowest) { -+ lowest = dev->obj_bucket[dev->bucket_finder].count; -+ l = dev->bucket_finder; -+ } -+ } -+ -+ return l; -+} -+ -+static int yaffs_new_obj_id(struct yaffs_dev *dev) -+{ -+ int bucket = yaffs_find_nice_bucket(dev); -+ int found = 0; -+ struct list_head *i; -+ u32 n = (u32) bucket; -+ -+ /* Now find an object value that has not already been taken -+ * by scanning the list. -+ */ -+ -+ while (!found) { -+ found = 1; -+ n += YAFFS_NOBJECT_BUCKETS; -+ if (1 || dev->obj_bucket[bucket].count > 0) { -+ list_for_each(i, &dev->obj_bucket[bucket].list) { -+ /* If there is already one in the list */ -+ if (i && list_entry(i, struct yaffs_obj, -+ hash_link)->obj_id == n) { -+ found = 0; -+ } -+ } -+ } -+ } -+ return n; -+} -+ -+static void yaffs_hash_obj(struct yaffs_obj *in) -+{ -+ int bucket = yaffs_hash_fn(in->obj_id); -+ struct yaffs_dev *dev = in->my_dev; -+ -+ list_add(&in->hash_link, &dev->obj_bucket[bucket].list); -+ dev->obj_bucket[bucket].count++; -+} -+ -+struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number) -+{ -+ int bucket = yaffs_hash_fn(number); -+ struct list_head *i; -+ struct yaffs_obj *in; -+ -+ list_for_each(i, &dev->obj_bucket[bucket].list) { -+ /* Look if it is in the list */ -+ in = list_entry(i, struct yaffs_obj, hash_link); -+ if (in->obj_id == number) { -+ /* Don't show if it is defered free */ -+ if (in->defered_free) -+ return NULL; -+ return in; -+ } -+ } -+ -+ return NULL; -+} -+ -+static struct yaffs_obj *yaffs_new_obj(struct yaffs_dev *dev, int number, -+ enum yaffs_obj_type type) -+{ -+ struct yaffs_obj *the_obj = NULL; -+ struct yaffs_tnode *tn = NULL; -+ -+ if (number < 0) -+ number = yaffs_new_obj_id(dev); -+ -+ if (type == YAFFS_OBJECT_TYPE_FILE) { -+ tn = yaffs_get_tnode(dev); -+ if (!tn) -+ return NULL; -+ } -+ -+ the_obj = yaffs_alloc_empty_obj(dev); -+ if (!the_obj) { -+ if (tn) -+ yaffs_free_tnode(dev, tn); -+ return NULL; -+ } -+ -+ the_obj->fake = 0; -+ the_obj->rename_allowed = 1; -+ the_obj->unlink_allowed = 1; -+ the_obj->obj_id = number; -+ yaffs_hash_obj(the_obj); -+ the_obj->variant_type = type; -+ yaffs_load_current_time(the_obj, 1, 1); -+ -+ switch (type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ the_obj->variant.file_variant.file_size = 0; -+ the_obj->variant.file_variant.scanned_size = 0; -+ the_obj->variant.file_variant.shrink_size = -+ yaffs_max_file_size(dev); -+ the_obj->variant.file_variant.top_level = 0; -+ the_obj->variant.file_variant.top = tn; -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ INIT_LIST_HEAD(&the_obj->variant.dir_variant.children); -+ INIT_LIST_HEAD(&the_obj->variant.dir_variant.dirty); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* No action required */ -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* todo this should not happen */ -+ break; -+ } -+ return the_obj; -+} -+ -+static struct yaffs_obj *yaffs_create_fake_dir(struct yaffs_dev *dev, -+ int number, u32 mode) -+{ -+ -+ struct yaffs_obj *obj = -+ yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); -+ -+ if (!obj) -+ return NULL; -+ -+ obj->fake = 1; /* it is fake so it might not use NAND */ -+ obj->rename_allowed = 0; -+ obj->unlink_allowed = 0; -+ obj->deleted = 0; -+ obj->unlinked = 0; -+ obj->yst_mode = mode; -+ obj->my_dev = dev; -+ obj->hdr_chunk = 0; /* Not a valid chunk. */ -+ return obj; -+ -+} -+ -+ -+static void yaffs_init_tnodes_and_objs(struct yaffs_dev *dev) -+{ -+ int i; -+ -+ dev->n_obj = 0; -+ dev->n_tnodes = 0; -+ yaffs_init_raw_tnodes_and_objs(dev); -+ -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ INIT_LIST_HEAD(&dev->obj_bucket[i].list); -+ dev->obj_bucket[i].count = 0; -+ } -+} -+ -+struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, -+ int number, -+ enum yaffs_obj_type type) -+{ -+ struct yaffs_obj *the_obj = NULL; -+ -+ if (number > 0) -+ the_obj = yaffs_find_by_number(dev, number); -+ -+ if (!the_obj) -+ the_obj = yaffs_new_obj(dev, number, type); -+ -+ return the_obj; -+ -+} -+ -+YCHAR *yaffs_clone_str(const YCHAR *str) -+{ -+ YCHAR *new_str = NULL; -+ int len; -+ -+ if (!str) -+ str = _Y(""); -+ -+ len = strnlen(str, YAFFS_MAX_ALIAS_LENGTH); -+ new_str = kmalloc((len + 1) * sizeof(YCHAR), GFP_NOFS); -+ if (new_str) { -+ strncpy(new_str, str, len); -+ new_str[len] = 0; -+ } -+ return new_str; -+ -+} -+/* -+ *yaffs_update_parent() handles fixing a directories mtime and ctime when a new -+ * link (ie. name) is created or deleted in the directory. -+ * -+ * ie. -+ * create dir/a : update dir's mtime/ctime -+ * rm dir/a: update dir's mtime/ctime -+ * modify dir/a: don't update dir's mtimme/ctime -+ * -+ * This can be handled immediately or defered. Defering helps reduce the number -+ * of updates when many files in a directory are changed within a brief period. -+ * -+ * If the directory updating is defered then yaffs_update_dirty_dirs must be -+ * called periodically. -+ */ -+ -+static void yaffs_update_parent(struct yaffs_obj *obj) -+{ -+ struct yaffs_dev *dev; -+ -+ if (!obj) -+ return; -+ dev = obj->my_dev; -+ obj->dirty = 1; -+ yaffs_load_current_time(obj, 0, 1); -+ if (dev->param.defered_dir_update) { -+ struct list_head *link = &obj->variant.dir_variant.dirty; -+ -+ if (list_empty(link)) { -+ list_add(link, &dev->dirty_dirs); -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, -+ "Added object %d to dirty directories", -+ obj->obj_id); -+ } -+ -+ } else { -+ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); -+ } -+} -+ -+void yaffs_update_dirty_dirs(struct yaffs_dev *dev) -+{ -+ struct list_head *link; -+ struct yaffs_obj *obj; -+ struct yaffs_dir_var *d_s; -+ union yaffs_obj_var *o_v; -+ -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, "Update dirty directories"); -+ -+ while (!list_empty(&dev->dirty_dirs)) { -+ link = dev->dirty_dirs.next; -+ list_del_init(link); -+ -+ d_s = list_entry(link, struct yaffs_dir_var, dirty); -+ o_v = list_entry(d_s, union yaffs_obj_var, dir_variant); -+ obj = list_entry(o_v, struct yaffs_obj, variant); -+ -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, "Update directory %d", -+ obj->obj_id); -+ -+ if (obj->dirty) -+ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); -+ } -+} -+ -+/* -+ * Mknod (create) a new object. -+ * equiv_obj only has meaning for a hard link; -+ * alias_str only has meaning for a symlink. -+ * rdev only has meaning for devices (a subset of special objects) -+ */ -+ -+static struct yaffs_obj *yaffs_create_obj(enum yaffs_obj_type type, -+ struct yaffs_obj *parent, -+ const YCHAR *name, -+ u32 mode, -+ u32 uid, -+ u32 gid, -+ struct yaffs_obj *equiv_obj, -+ const YCHAR *alias_str, u32 rdev) -+{ -+ struct yaffs_obj *in; -+ YCHAR *str = NULL; -+ struct yaffs_dev *dev = parent->my_dev; -+ -+ /* Check if the entry exists. -+ * If it does then fail the call since we don't want a dup. */ -+ if (yaffs_find_by_name(parent, name)) -+ return NULL; -+ -+ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { -+ str = yaffs_clone_str(alias_str); -+ if (!str) -+ return NULL; -+ } -+ -+ in = yaffs_new_obj(dev, -1, type); -+ -+ if (!in) { -+ kfree(str); -+ return NULL; -+ } -+ -+ in->hdr_chunk = 0; -+ in->valid = 1; -+ in->variant_type = type; -+ -+ in->yst_mode = mode; -+ -+ yaffs_attribs_init(in, gid, uid, rdev); -+ -+ in->n_data_chunks = 0; -+ -+ yaffs_set_obj_name(in, name); -+ in->dirty = 1; -+ -+ yaffs_add_obj_to_dir(parent, in); -+ -+ in->my_dev = parent->my_dev; -+ -+ switch (type) { -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ in->variant.symlink_variant.alias = str; -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ in->variant.hardlink_variant.equiv_obj = equiv_obj; -+ in->variant.hardlink_variant.equiv_id = equiv_obj->obj_id; -+ list_add(&in->hard_links, &equiv_obj->hard_links); -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* do nothing */ -+ break; -+ } -+ -+ if (yaffs_update_oh(in, name, 0, 0, 0, NULL) < 0) { -+ /* Could not create the object header, fail */ -+ yaffs_del_obj(in); -+ in = NULL; -+ } -+ -+ if (in) -+ yaffs_update_parent(parent); -+ -+ return in; -+} -+ -+struct yaffs_obj *yaffs_create_file(struct yaffs_obj *parent, -+ const YCHAR *name, u32 mode, u32 uid, -+ u32 gid) -+{ -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, -+ uid, gid, NULL, NULL, 0); -+} -+ -+struct yaffs_obj *yaffs_create_dir(struct yaffs_obj *parent, const YCHAR *name, -+ u32 mode, u32 uid, u32 gid) -+{ -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, -+ mode, uid, gid, NULL, NULL, 0); -+} -+ -+struct yaffs_obj *yaffs_create_special(struct yaffs_obj *parent, -+ const YCHAR *name, u32 mode, u32 uid, -+ u32 gid, u32 rdev) -+{ -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, -+ uid, gid, NULL, NULL, rdev); -+} -+ -+struct yaffs_obj *yaffs_create_symlink(struct yaffs_obj *parent, -+ const YCHAR *name, u32 mode, u32 uid, -+ u32 gid, const YCHAR *alias) -+{ -+ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, -+ uid, gid, NULL, alias, 0); -+} -+ -+/* yaffs_link_obj returns the object id of the equivalent object.*/ -+struct yaffs_obj *yaffs_link_obj(struct yaffs_obj *parent, const YCHAR * name, -+ struct yaffs_obj *equiv_obj) -+{ -+ /* Get the real object in case we were fed a hard link obj */ -+ equiv_obj = yaffs_get_equivalent_obj(equiv_obj); -+ -+ if (yaffs_create_obj(YAFFS_OBJECT_TYPE_HARDLINK, -+ parent, name, 0, 0, 0, -+ equiv_obj, NULL, 0)) -+ return equiv_obj; -+ -+ return NULL; -+ -+} -+ -+ -+ -+/*---------------------- Block Management and Page Allocation -------------*/ -+ -+static void yaffs_deinit_blocks(struct yaffs_dev *dev) -+{ -+ if (dev->block_info_alt && dev->block_info) -+ vfree(dev->block_info); -+ else -+ kfree(dev->block_info); -+ -+ dev->block_info_alt = 0; -+ -+ dev->block_info = NULL; -+ -+ if (dev->chunk_bits_alt && dev->chunk_bits) -+ vfree(dev->chunk_bits); -+ else -+ kfree(dev->chunk_bits); -+ dev->chunk_bits_alt = 0; -+ dev->chunk_bits = NULL; -+} -+ -+static int yaffs_init_blocks(struct yaffs_dev *dev) -+{ -+ int n_blocks = dev->internal_end_block - dev->internal_start_block + 1; -+ -+ dev->block_info = NULL; -+ dev->chunk_bits = NULL; -+ dev->alloc_block = -1; /* force it to get a new one */ -+ -+ /* If the first allocation strategy fails, thry the alternate one */ -+ dev->block_info = -+ kmalloc(n_blocks * sizeof(struct yaffs_block_info), GFP_NOFS); -+ if (!dev->block_info) { -+ dev->block_info = -+ vmalloc(n_blocks * sizeof(struct yaffs_block_info)); -+ dev->block_info_alt = 1; -+ } else { -+ dev->block_info_alt = 0; -+ } -+ -+ if (!dev->block_info) -+ goto alloc_error; -+ -+ /* Set up dynamic blockinfo stuff. Round up bytes. */ -+ dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; -+ dev->chunk_bits = -+ kmalloc(dev->chunk_bit_stride * n_blocks, GFP_NOFS); -+ if (!dev->chunk_bits) { -+ dev->chunk_bits = -+ vmalloc(dev->chunk_bit_stride * n_blocks); -+ dev->chunk_bits_alt = 1; -+ } else { -+ dev->chunk_bits_alt = 0; -+ } -+ if (!dev->chunk_bits) -+ goto alloc_error; -+ -+ -+ memset(dev->block_info, 0, n_blocks * sizeof(struct yaffs_block_info)); -+ memset(dev->chunk_bits, 0, dev->chunk_bit_stride * n_blocks); -+ return YAFFS_OK; -+ -+alloc_error: -+ yaffs_deinit_blocks(dev); -+ return YAFFS_FAIL; -+} -+ -+ -+void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no) -+{ -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, block_no); -+ int erased_ok = 0; -+ int i; -+ -+ /* If the block is still healthy erase it and mark as clean. -+ * If the block has had a data failure, then retire it. -+ */ -+ -+ yaffs_trace(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, -+ "yaffs_block_became_dirty block %d state %d %s", -+ block_no, bi->block_state, -+ (bi->needs_retiring) ? "needs retiring" : ""); -+ -+ yaffs2_clear_oldest_dirty_seq(dev, bi); -+ -+ bi->block_state = YAFFS_BLOCK_STATE_DIRTY; -+ -+ /* If this is the block being garbage collected then stop gc'ing */ -+ if (block_no == dev->gc_block) -+ dev->gc_block = 0; -+ -+ /* If this block is currently the best candidate for gc -+ * then drop as a candidate */ -+ if (block_no == dev->gc_dirtiest) { -+ dev->gc_dirtiest = 0; -+ dev->gc_pages_in_use = 0; -+ } -+ -+ if (!bi->needs_retiring) { -+ yaffs2_checkpt_invalidate(dev); -+ erased_ok = yaffs_erase_block(dev, block_no); -+ if (!erased_ok) { -+ dev->n_erase_failures++; -+ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ "**>> Erasure failed %d", block_no); -+ } -+ } -+ -+ /* Verify erasure if needed */ -+ if (erased_ok && -+ ((yaffs_trace_mask & YAFFS_TRACE_ERASE) || -+ !yaffs_skip_verification(dev))) { -+ for (i = 0; i < dev->param.chunks_per_block; i++) { -+ if (!yaffs_check_chunk_erased(dev, -+ block_no * dev->param.chunks_per_block + i)) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ ">>Block %d erasure supposedly OK, but chunk %d not erased", -+ block_no, i); -+ } -+ } -+ } -+ -+ if (!erased_ok) { -+ /* We lost a block of free space */ -+ dev->n_free_chunks -= dev->param.chunks_per_block; -+ yaffs_retire_block(dev, block_no); -+ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ "**>> Block %d retired", block_no); -+ return; -+ } -+ -+ /* Clean it up... */ -+ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; -+ bi->seq_number = 0; -+ dev->n_erased_blocks++; -+ bi->pages_in_use = 0; -+ bi->soft_del_pages = 0; -+ bi->has_shrink_hdr = 0; -+ bi->skip_erased_check = 1; /* Clean, so no need to check */ -+ bi->gc_prioritise = 0; -+ bi->has_summary = 0; -+ -+ yaffs_clear_chunk_bits(dev, block_no); -+ -+ yaffs_trace(YAFFS_TRACE_ERASE, "Erased block %d", block_no); -+} -+ -+static inline int yaffs_gc_process_chunk(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi, -+ int old_chunk, u8 *buffer) -+{ -+ int new_chunk; -+ int mark_flash = 1; -+ struct yaffs_ext_tags tags; -+ struct yaffs_obj *object; -+ int matching_chunk; -+ int ret_val = YAFFS_OK; -+ -+ memset(&tags, 0, sizeof(tags)); -+ yaffs_rd_chunk_tags_nand(dev, old_chunk, -+ buffer, &tags); -+ object = yaffs_find_by_number(dev, tags.obj_id); -+ -+ yaffs_trace(YAFFS_TRACE_GC_DETAIL, -+ "Collecting chunk in block %d, %d %d %d ", -+ dev->gc_chunk, tags.obj_id, -+ tags.chunk_id, tags.n_bytes); -+ -+ if (object && !yaffs_skip_verification(dev)) { -+ if (tags.chunk_id == 0) -+ matching_chunk = -+ object->hdr_chunk; -+ else if (object->soft_del) -+ /* Defeat the test */ -+ matching_chunk = old_chunk; -+ else -+ matching_chunk = -+ yaffs_find_chunk_in_file -+ (object, tags.chunk_id, -+ NULL); -+ -+ if (old_chunk != matching_chunk) -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "gc: page in gc mismatch: %d %d %d %d", -+ old_chunk, -+ matching_chunk, -+ tags.obj_id, -+ tags.chunk_id); -+ } -+ -+ if (!object) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "page %d in gc has no object: %d %d %d ", -+ old_chunk, -+ tags.obj_id, tags.chunk_id, -+ tags.n_bytes); -+ } -+ -+ if (object && -+ object->deleted && -+ object->soft_del && tags.chunk_id != 0) { -+ /* Data chunk in a soft deleted file, -+ * throw it away. -+ * It's a soft deleted data chunk, -+ * No need to copy this, just forget -+ * about it and fix up the object. -+ */ -+ -+ /* Free chunks already includes -+ * softdeleted chunks, how ever this -+ * chunk is going to soon be really -+ * deleted which will increment free -+ * chunks. We have to decrement free -+ * chunks so this works out properly. -+ */ -+ dev->n_free_chunks--; -+ bi->soft_del_pages--; -+ -+ object->n_data_chunks--; -+ if (object->n_data_chunks <= 0) { -+ /* remeber to clean up obj */ -+ dev->gc_cleanup_list[dev->n_clean_ups] = tags.obj_id; -+ dev->n_clean_ups++; -+ } -+ mark_flash = 0; -+ } else if (object) { -+ /* It's either a data chunk in a live -+ * file or an ObjectHeader, so we're -+ * interested in it. -+ * NB Need to keep the ObjectHeaders of -+ * deleted files until the whole file -+ * has been deleted off -+ */ -+ tags.serial_number++; -+ dev->n_gc_copies++; -+ -+ if (tags.chunk_id == 0) { -+ /* It is an object Id, -+ * We need to nuke the -+ * shrinkheader flags since its -+ * work is done. -+ * Also need to clean up -+ * shadowing. -+ */ -+ struct yaffs_obj_hdr *oh; -+ oh = (struct yaffs_obj_hdr *) buffer; -+ -+ oh->is_shrink = 0; -+ tags.extra_is_shrink = 0; -+ oh->shadows_obj = 0; -+ oh->inband_shadowed_obj_id = 0; -+ tags.extra_shadows = 0; -+ -+ /* Update file size */ -+ if (object->variant_type == YAFFS_OBJECT_TYPE_FILE) { -+ yaffs_oh_size_load(oh, -+ object->variant.file_variant.file_size); -+ tags.extra_file_size = -+ object->variant.file_variant.file_size; -+ } -+ -+ yaffs_verify_oh(object, oh, &tags, 1); -+ new_chunk = -+ yaffs_write_new_chunk(dev, (u8 *) oh, &tags, 1); -+ } else { -+ new_chunk = -+ yaffs_write_new_chunk(dev, buffer, &tags, 1); -+ } -+ -+ if (new_chunk < 0) { -+ ret_val = YAFFS_FAIL; -+ } else { -+ -+ /* Now fix up the Tnodes etc. */ -+ -+ if (tags.chunk_id == 0) { -+ /* It's a header */ -+ object->hdr_chunk = new_chunk; -+ object->serial = tags.serial_number; -+ } else { -+ /* It's a data chunk */ -+ yaffs_put_chunk_in_file(object, tags.chunk_id, -+ new_chunk, 0); -+ } -+ } -+ } -+ if (ret_val == YAFFS_OK) -+ yaffs_chunk_del(dev, old_chunk, mark_flash, __LINE__); -+ return ret_val; -+} -+ -+static int yaffs_gc_block(struct yaffs_dev *dev, int block, int whole_block) -+{ -+ int old_chunk; -+ int ret_val = YAFFS_OK; -+ int i; -+ int is_checkpt_block; -+ int max_copies; -+ int chunks_before = yaffs_get_erased_chunks(dev); -+ int chunks_after; -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, block); -+ -+ is_checkpt_block = (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT); -+ -+ yaffs_trace(YAFFS_TRACE_TRACING, -+ "Collecting block %d, in use %d, shrink %d, whole_block %d", -+ block, bi->pages_in_use, bi->has_shrink_hdr, -+ whole_block); -+ -+ /*yaffs_verify_free_chunks(dev); */ -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL) -+ bi->block_state = YAFFS_BLOCK_STATE_COLLECTING; -+ -+ bi->has_shrink_hdr = 0; /* clear the flag so that the block can erase */ -+ -+ dev->gc_disable = 1; -+ -+ yaffs_summary_gc(dev, block); -+ -+ if (is_checkpt_block || !yaffs_still_some_chunks(dev, block)) { -+ yaffs_trace(YAFFS_TRACE_TRACING, -+ "Collecting block %d that has no chunks in use", -+ block); -+ yaffs_block_became_dirty(dev, block); -+ } else { -+ -+ u8 *buffer = yaffs_get_temp_buffer(dev); -+ -+ yaffs_verify_blk(dev, bi, block); -+ -+ max_copies = (whole_block) ? dev->param.chunks_per_block : 5; -+ old_chunk = block * dev->param.chunks_per_block + dev->gc_chunk; -+ -+ for (/* init already done */ ; -+ ret_val == YAFFS_OK && -+ dev->gc_chunk < dev->param.chunks_per_block && -+ (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) && -+ max_copies > 0; -+ dev->gc_chunk++, old_chunk++) { -+ if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) { -+ /* Page is in use and might need to be copied */ -+ max_copies--; -+ ret_val = yaffs_gc_process_chunk(dev, bi, -+ old_chunk, buffer); -+ } -+ } -+ yaffs_release_temp_buffer(dev, buffer); -+ } -+ -+ yaffs_verify_collected_blk(dev, bi, block); -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { -+ /* -+ * The gc did not complete. Set block state back to FULL -+ * because checkpointing does not restore gc. -+ */ -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ } else { -+ /* The gc completed. */ -+ /* Do any required cleanups */ -+ for (i = 0; i < dev->n_clean_ups; i++) { -+ /* Time to delete the file too */ -+ struct yaffs_obj *object = -+ yaffs_find_by_number(dev, dev->gc_cleanup_list[i]); -+ if (object) { -+ yaffs_free_tnode(dev, -+ object->variant.file_variant.top); -+ object->variant.file_variant.top = NULL; -+ yaffs_trace(YAFFS_TRACE_GC, -+ "yaffs: About to finally delete object %d", -+ object->obj_id); -+ yaffs_generic_obj_del(object); -+ object->my_dev->n_deleted_files--; -+ } -+ -+ } -+ chunks_after = yaffs_get_erased_chunks(dev); -+ if (chunks_before >= chunks_after) -+ yaffs_trace(YAFFS_TRACE_GC, -+ "gc did not increase free chunks before %d after %d", -+ chunks_before, chunks_after); -+ dev->gc_block = 0; -+ dev->gc_chunk = 0; -+ dev->n_clean_ups = 0; -+ } -+ -+ dev->gc_disable = 0; -+ -+ return ret_val; -+} -+ -+/* -+ * find_gc_block() selects the dirtiest block (or close enough) -+ * for garbage collection. -+ */ -+ -+static unsigned yaffs_find_gc_block(struct yaffs_dev *dev, -+ int aggressive, int background) -+{ -+ int i; -+ int iterations; -+ unsigned selected = 0; -+ int prioritised = 0; -+ int prioritised_exist = 0; -+ struct yaffs_block_info *bi; -+ int threshold; -+ -+ /* First let's see if we need to grab a prioritised block */ -+ if (dev->has_pending_prioritised_gc && !aggressive) { -+ dev->gc_dirtiest = 0; -+ bi = dev->block_info; -+ for (i = dev->internal_start_block; -+ i <= dev->internal_end_block && !selected; i++) { -+ -+ if (bi->gc_prioritise) { -+ prioritised_exist = 1; -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && -+ yaffs_block_ok_for_gc(dev, bi)) { -+ selected = i; -+ prioritised = 1; -+ } -+ } -+ bi++; -+ } -+ -+ /* -+ * If there is a prioritised block and none was selected then -+ * this happened because there is at least one old dirty block -+ * gumming up the works. Let's gc the oldest dirty block. -+ */ -+ -+ if (prioritised_exist && -+ !selected && dev->oldest_dirty_block > 0) -+ selected = dev->oldest_dirty_block; -+ -+ if (!prioritised_exist) /* None found, so we can clear this */ -+ dev->has_pending_prioritised_gc = 0; -+ } -+ -+ /* If we're doing aggressive GC then we are happy to take a less-dirty -+ * block, and search harder. -+ * else (leasurely gc), then we only bother to do this if the -+ * block has only a few pages in use. -+ */ -+ -+ if (!selected) { -+ int pages_used; -+ int n_blocks = -+ dev->internal_end_block - dev->internal_start_block + 1; -+ if (aggressive) { -+ threshold = dev->param.chunks_per_block; -+ iterations = n_blocks; -+ } else { -+ int max_threshold; -+ -+ if (background) -+ max_threshold = dev->param.chunks_per_block / 2; -+ else -+ max_threshold = dev->param.chunks_per_block / 8; -+ -+ if (max_threshold < YAFFS_GC_PASSIVE_THRESHOLD) -+ max_threshold = YAFFS_GC_PASSIVE_THRESHOLD; -+ -+ threshold = background ? (dev->gc_not_done + 2) * 2 : 0; -+ if (threshold < YAFFS_GC_PASSIVE_THRESHOLD) -+ threshold = YAFFS_GC_PASSIVE_THRESHOLD; -+ if (threshold > max_threshold) -+ threshold = max_threshold; -+ -+ iterations = n_blocks / 16 + 1; -+ if (iterations > 100) -+ iterations = 100; -+ } -+ -+ for (i = 0; -+ i < iterations && -+ (dev->gc_dirtiest < 1 || -+ dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH); -+ i++) { -+ dev->gc_block_finder++; -+ if (dev->gc_block_finder < dev->internal_start_block || -+ dev->gc_block_finder > dev->internal_end_block) -+ dev->gc_block_finder = -+ dev->internal_start_block; -+ -+ bi = yaffs_get_block_info(dev, dev->gc_block_finder); -+ -+ pages_used = bi->pages_in_use - bi->soft_del_pages; -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && -+ pages_used < dev->param.chunks_per_block && -+ (dev->gc_dirtiest < 1 || -+ pages_used < dev->gc_pages_in_use) && -+ yaffs_block_ok_for_gc(dev, bi)) { -+ dev->gc_dirtiest = dev->gc_block_finder; -+ dev->gc_pages_in_use = pages_used; -+ } -+ } -+ -+ if (dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold) -+ selected = dev->gc_dirtiest; -+ } -+ -+ /* -+ * If nothing has been selected for a while, try the oldest dirty -+ * because that's gumming up the works. -+ */ -+ -+ if (!selected && dev->param.is_yaffs2 && -+ dev->gc_not_done >= (background ? 10 : 20)) { -+ yaffs2_find_oldest_dirty_seq(dev); -+ if (dev->oldest_dirty_block > 0) { -+ selected = dev->oldest_dirty_block; -+ dev->gc_dirtiest = selected; -+ dev->oldest_dirty_gc_count++; -+ bi = yaffs_get_block_info(dev, selected); -+ dev->gc_pages_in_use = -+ bi->pages_in_use - bi->soft_del_pages; -+ } else { -+ dev->gc_not_done = 0; -+ } -+ } -+ -+ if (selected) { -+ yaffs_trace(YAFFS_TRACE_GC, -+ "GC Selected block %d with %d free, prioritised:%d", -+ selected, -+ dev->param.chunks_per_block - dev->gc_pages_in_use, -+ prioritised); -+ -+ dev->n_gc_blocks++; -+ if (background) -+ dev->bg_gcs++; -+ -+ dev->gc_dirtiest = 0; -+ dev->gc_pages_in_use = 0; -+ dev->gc_not_done = 0; -+ if (dev->refresh_skip > 0) -+ dev->refresh_skip--; -+ } else { -+ dev->gc_not_done++; -+ yaffs_trace(YAFFS_TRACE_GC, -+ "GC none: finder %d skip %d threshold %d dirtiest %d using %d oldest %d%s", -+ dev->gc_block_finder, dev->gc_not_done, threshold, -+ dev->gc_dirtiest, dev->gc_pages_in_use, -+ dev->oldest_dirty_block, background ? " bg" : ""); -+ } -+ -+ return selected; -+} -+ -+/* New garbage collector -+ * If we're very low on erased blocks then we do aggressive garbage collection -+ * otherwise we do "leasurely" garbage collection. -+ * Aggressive gc looks further (whole array) and will accept less dirty blocks. -+ * Passive gc only inspects smaller areas and only accepts more dirty blocks. -+ * -+ * The idea is to help clear out space in a more spread-out manner. -+ * Dunno if it really does anything useful. -+ */ -+static int yaffs_check_gc(struct yaffs_dev *dev, int background) -+{ -+ int aggressive = 0; -+ int gc_ok = YAFFS_OK; -+ int max_tries = 0; -+ int min_erased; -+ int erased_chunks; -+ int checkpt_block_adjust; -+ -+ if (dev->param.gc_control_fn && -+ (dev->param.gc_control_fn(dev) & 1) == 0) -+ return YAFFS_OK; -+ -+ if (dev->gc_disable) -+ /* Bail out so we don't get recursive gc */ -+ return YAFFS_OK; -+ -+ /* This loop should pass the first time. -+ * Only loops here if the collection does not increase space. -+ */ -+ -+ do { -+ max_tries++; -+ -+ checkpt_block_adjust = yaffs_calc_checkpt_blocks_required(dev); -+ -+ min_erased = -+ dev->param.n_reserved_blocks + checkpt_block_adjust + 1; -+ erased_chunks = -+ dev->n_erased_blocks * dev->param.chunks_per_block; -+ -+ /* If we need a block soon then do aggressive gc. */ -+ if (dev->n_erased_blocks < min_erased) -+ aggressive = 1; -+ else { -+ if (!background -+ && erased_chunks > (dev->n_free_chunks / 4)) -+ break; -+ -+ if (dev->gc_skip > 20) -+ dev->gc_skip = 20; -+ if (erased_chunks < dev->n_free_chunks / 2 || -+ dev->gc_skip < 1 || background) -+ aggressive = 0; -+ else { -+ dev->gc_skip--; -+ break; -+ } -+ } -+ -+ dev->gc_skip = 5; -+ -+ /* If we don't already have a block being gc'd then see if we -+ * should start another */ -+ -+ if (dev->gc_block < 1 && !aggressive) { -+ dev->gc_block = yaffs2_find_refresh_block(dev); -+ dev->gc_chunk = 0; -+ dev->n_clean_ups = 0; -+ } -+ if (dev->gc_block < 1) { -+ dev->gc_block = -+ yaffs_find_gc_block(dev, aggressive, background); -+ dev->gc_chunk = 0; -+ dev->n_clean_ups = 0; -+ } -+ -+ if (dev->gc_block > 0) { -+ dev->all_gcs++; -+ if (!aggressive) -+ dev->passive_gc_count++; -+ -+ yaffs_trace(YAFFS_TRACE_GC, -+ "yaffs: GC n_erased_blocks %d aggressive %d", -+ dev->n_erased_blocks, aggressive); -+ -+ gc_ok = yaffs_gc_block(dev, dev->gc_block, aggressive); -+ } -+ -+ if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && -+ dev->gc_block > 0) { -+ yaffs_trace(YAFFS_TRACE_GC, -+ "yaffs: GC !!!no reclaim!!! n_erased_blocks %d after try %d block %d", -+ dev->n_erased_blocks, max_tries, -+ dev->gc_block); -+ } -+ } while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) && -+ (dev->gc_block > 0) && (max_tries < 2)); -+ -+ return aggressive ? gc_ok : YAFFS_OK; -+} -+ -+/* -+ * yaffs_bg_gc() -+ * Garbage collects. Intended to be called from a background thread. -+ * Returns non-zero if at least half the free chunks are erased. -+ */ -+int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency) -+{ -+ int erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block; -+ -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, "Background gc %u", urgency); -+ -+ yaffs_check_gc(dev, 1); -+ return erased_chunks > dev->n_free_chunks / 2; -+} -+ -+/*-------------------- Data file manipulation -----------------*/ -+ -+static int yaffs_rd_data_obj(struct yaffs_obj *in, int inode_chunk, u8 * buffer) -+{ -+ int nand_chunk = yaffs_find_chunk_in_file(in, inode_chunk, NULL); -+ -+ if (nand_chunk >= 0) -+ return yaffs_rd_chunk_tags_nand(in->my_dev, nand_chunk, -+ buffer, NULL); -+ else { -+ yaffs_trace(YAFFS_TRACE_NANDACCESS, -+ "Chunk %d not found zero instead", -+ nand_chunk); -+ /* get sane (zero) data if you read a hole */ -+ memset(buffer, 0, in->my_dev->data_bytes_per_chunk); -+ return 0; -+ } -+ -+} -+ -+void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, -+ int lyn) -+{ -+ int block; -+ int page; -+ struct yaffs_ext_tags tags; -+ struct yaffs_block_info *bi; -+ -+ if (chunk_id <= 0) -+ return; -+ -+ dev->n_deletions++; -+ block = chunk_id / dev->param.chunks_per_block; -+ page = chunk_id % dev->param.chunks_per_block; -+ -+ if (!yaffs_check_chunk_bit(dev, block, page)) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Deleting invalid chunk %d", chunk_id); -+ -+ bi = yaffs_get_block_info(dev, block); -+ -+ yaffs2_update_oldest_dirty_seq(dev, block, bi); -+ -+ yaffs_trace(YAFFS_TRACE_DELETION, -+ "line %d delete of chunk %d", -+ lyn, chunk_id); -+ -+ if (!dev->param.is_yaffs2 && mark_flash && -+ bi->block_state != YAFFS_BLOCK_STATE_COLLECTING) { -+ -+ memset(&tags, 0, sizeof(tags)); -+ tags.is_deleted = 1; -+ yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags); -+ yaffs_handle_chunk_update(dev, chunk_id, &tags); -+ } else { -+ dev->n_unmarked_deletions++; -+ } -+ -+ /* Pull out of the management area. -+ * If the whole block became dirty, this will kick off an erasure. -+ */ -+ if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING || -+ bi->block_state == YAFFS_BLOCK_STATE_FULL || -+ bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN || -+ bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { -+ dev->n_free_chunks++; -+ yaffs_clear_chunk_bit(dev, block, page); -+ bi->pages_in_use--; -+ -+ if (bi->pages_in_use == 0 && -+ !bi->has_shrink_hdr && -+ bi->block_state != YAFFS_BLOCK_STATE_ALLOCATING && -+ bi->block_state != YAFFS_BLOCK_STATE_NEEDS_SCAN) { -+ yaffs_block_became_dirty(dev, block); -+ } -+ } -+} -+ -+static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk, -+ const u8 *buffer, int n_bytes, int use_reserve) -+{ -+ /* Find old chunk Need to do this to get serial number -+ * Write new one and patch into tree. -+ * Invalidate old tags. -+ */ -+ -+ int prev_chunk_id; -+ struct yaffs_ext_tags prev_tags; -+ int new_chunk_id; -+ struct yaffs_ext_tags new_tags; -+ struct yaffs_dev *dev = in->my_dev; -+ -+ yaffs_check_gc(dev, 0); -+ -+ /* Get the previous chunk at this location in the file if it exists. -+ * If it does not exist then put a zero into the tree. This creates -+ * the tnode now, rather than later when it is harder to clean up. -+ */ -+ prev_chunk_id = yaffs_find_chunk_in_file(in, inode_chunk, &prev_tags); -+ if (prev_chunk_id < 1 && -+ !yaffs_put_chunk_in_file(in, inode_chunk, 0, 0)) -+ return 0; -+ -+ /* Set up new tags */ -+ memset(&new_tags, 0, sizeof(new_tags)); -+ -+ new_tags.chunk_id = inode_chunk; -+ new_tags.obj_id = in->obj_id; -+ new_tags.serial_number = -+ (prev_chunk_id > 0) ? prev_tags.serial_number + 1 : 1; -+ new_tags.n_bytes = n_bytes; -+ -+ if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "Writing %d bytes to chunk!!!!!!!!!", -+ n_bytes); -+ BUG(); -+ } -+ -+ new_chunk_id = -+ yaffs_write_new_chunk(dev, buffer, &new_tags, use_reserve); -+ -+ if (new_chunk_id > 0) { -+ yaffs_put_chunk_in_file(in, inode_chunk, new_chunk_id, 0); -+ -+ if (prev_chunk_id > 0) -+ yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); -+ -+ yaffs_verify_file_sane(in); -+ } -+ return new_chunk_id; -+ -+} -+ -+ -+ -+static int yaffs_do_xattrib_mod(struct yaffs_obj *obj, int set, -+ const YCHAR *name, const void *value, int size, -+ int flags) -+{ -+ struct yaffs_xattr_mod xmod; -+ int result; -+ -+ xmod.set = set; -+ xmod.name = name; -+ xmod.data = value; -+ xmod.size = size; -+ xmod.flags = flags; -+ xmod.result = -ENOSPC; -+ -+ result = yaffs_update_oh(obj, NULL, 0, 0, 0, &xmod); -+ -+ if (result > 0) -+ return xmod.result; -+ else -+ return -ENOSPC; -+} -+ -+static int yaffs_apply_xattrib_mod(struct yaffs_obj *obj, char *buffer, -+ struct yaffs_xattr_mod *xmod) -+{ -+ int retval = 0; -+ int x_offs = sizeof(struct yaffs_obj_hdr); -+ struct yaffs_dev *dev = obj->my_dev; -+ int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); -+ char *x_buffer = buffer + x_offs; -+ -+ if (xmod->set) -+ retval = -+ nval_set(x_buffer, x_size, xmod->name, xmod->data, -+ xmod->size, xmod->flags); -+ else -+ retval = nval_del(x_buffer, x_size, xmod->name); -+ -+ obj->has_xattr = nval_hasvalues(x_buffer, x_size); -+ obj->xattr_known = 1; -+ xmod->result = retval; -+ -+ return retval; -+} -+ -+static int yaffs_do_xattrib_fetch(struct yaffs_obj *obj, const YCHAR *name, -+ void *value, int size) -+{ -+ char *buffer = NULL; -+ int result; -+ struct yaffs_ext_tags tags; -+ struct yaffs_dev *dev = obj->my_dev; -+ int x_offs = sizeof(struct yaffs_obj_hdr); -+ int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); -+ char *x_buffer; -+ int retval = 0; -+ -+ if (obj->hdr_chunk < 1) -+ return -ENODATA; -+ -+ /* If we know that the object has no xattribs then don't do all the -+ * reading and parsing. -+ */ -+ if (obj->xattr_known && !obj->has_xattr) { -+ if (name) -+ return -ENODATA; -+ else -+ return 0; -+ } -+ -+ buffer = (char *)yaffs_get_temp_buffer(dev); -+ if (!buffer) -+ return -ENOMEM; -+ -+ result = -+ yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, (u8 *) buffer, &tags); -+ -+ if (result != YAFFS_OK) -+ retval = -ENOENT; -+ else { -+ x_buffer = buffer + x_offs; -+ -+ if (!obj->xattr_known) { -+ obj->has_xattr = nval_hasvalues(x_buffer, x_size); -+ obj->xattr_known = 1; -+ } -+ -+ if (name) -+ retval = nval_get(x_buffer, x_size, name, value, size); -+ else -+ retval = nval_list(x_buffer, x_size, value, size); -+ } -+ yaffs_release_temp_buffer(dev, (u8 *) buffer); -+ return retval; -+} -+ -+int yaffs_set_xattrib(struct yaffs_obj *obj, const YCHAR * name, -+ const void *value, int size, int flags) -+{ -+ return yaffs_do_xattrib_mod(obj, 1, name, value, size, flags); -+} -+ -+int yaffs_remove_xattrib(struct yaffs_obj *obj, const YCHAR * name) -+{ -+ return yaffs_do_xattrib_mod(obj, 0, name, NULL, 0, 0); -+} -+ -+int yaffs_get_xattrib(struct yaffs_obj *obj, const YCHAR * name, void *value, -+ int size) -+{ -+ return yaffs_do_xattrib_fetch(obj, name, value, size); -+} -+ -+int yaffs_list_xattrib(struct yaffs_obj *obj, char *buffer, int size) -+{ -+ return yaffs_do_xattrib_fetch(obj, NULL, buffer, size); -+} -+ -+static void yaffs_check_obj_details_loaded(struct yaffs_obj *in) -+{ -+ u8 *buf; -+ struct yaffs_obj_hdr *oh; -+ struct yaffs_dev *dev; -+ struct yaffs_ext_tags tags; -+ int result; -+ int alloc_failed = 0; -+ -+ if (!in || !in->lazy_loaded || in->hdr_chunk < 1) -+ return; -+ -+ dev = in->my_dev; -+ in->lazy_loaded = 0; -+ buf = yaffs_get_temp_buffer(dev); -+ -+ result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags); -+ oh = (struct yaffs_obj_hdr *)buf; -+ -+ in->yst_mode = oh->yst_mode; -+ yaffs_load_attribs(in, oh); -+ yaffs_set_obj_name_from_oh(in, oh); -+ -+ if (in->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) { -+ in->variant.symlink_variant.alias = -+ yaffs_clone_str(oh->alias); -+ if (!in->variant.symlink_variant.alias) -+ alloc_failed = 1; /* Not returned */ -+ } -+ yaffs_release_temp_buffer(dev, buf); -+} -+ -+static void yaffs_load_name_from_oh(struct yaffs_dev *dev, YCHAR *name, -+ const YCHAR *oh_name, int buff_size) -+{ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ if (dev->param.auto_unicode) { -+ if (*oh_name) { -+ /* It is an ASCII name, do an ASCII to -+ * unicode conversion */ -+ const char *ascii_oh_name = (const char *)oh_name; -+ int n = buff_size - 1; -+ while (n > 0 && *ascii_oh_name) { -+ *name = *ascii_oh_name; -+ name++; -+ ascii_oh_name++; -+ n--; -+ } -+ } else { -+ strncpy(name, oh_name + 1, buff_size - 1); -+ } -+ } else { -+#else -+ (void) dev; -+ { -+#endif -+ strncpy(name, oh_name, buff_size - 1); -+ } -+} -+ -+static void yaffs_load_oh_from_name(struct yaffs_dev *dev, YCHAR *oh_name, -+ const YCHAR *name) -+{ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ -+ int is_ascii; -+ YCHAR *w; -+ -+ if (dev->param.auto_unicode) { -+ -+ is_ascii = 1; -+ w = name; -+ -+ /* Figure out if the name will fit in ascii character set */ -+ while (is_ascii && *w) { -+ if ((*w) & 0xff00) -+ is_ascii = 0; -+ w++; -+ } -+ -+ if (is_ascii) { -+ /* It is an ASCII name, so convert unicode to ascii */ -+ char *ascii_oh_name = (char *)oh_name; -+ int n = YAFFS_MAX_NAME_LENGTH - 1; -+ while (n > 0 && *name) { -+ *ascii_oh_name = *name; -+ name++; -+ ascii_oh_name++; -+ n--; -+ } -+ } else { -+ /* Unicode name, so save starting at the second YCHAR */ -+ *oh_name = 0; -+ strncpy(oh_name + 1, name, YAFFS_MAX_NAME_LENGTH - 2); -+ } -+ } else { -+#else -+ dev = dev; -+ { -+#endif -+ strncpy(oh_name, name, YAFFS_MAX_NAME_LENGTH - 1); -+ } -+} -+ -+/* UpdateObjectHeader updates the header on NAND for an object. -+ * If name is not NULL, then that new name is used. -+ */ -+int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, int force, -+ int is_shrink, int shadows, struct yaffs_xattr_mod *xmod) -+{ -+ -+ struct yaffs_block_info *bi; -+ struct yaffs_dev *dev = in->my_dev; -+ int prev_chunk_id; -+ int ret_val = 0; -+ int result = 0; -+ int new_chunk_id; -+ struct yaffs_ext_tags new_tags; -+ struct yaffs_ext_tags old_tags; -+ const YCHAR *alias = NULL; -+ u8 *buffer = NULL; -+ YCHAR old_name[YAFFS_MAX_NAME_LENGTH + 1]; -+ struct yaffs_obj_hdr *oh = NULL; -+ loff_t file_size = 0; -+ -+ strcpy(old_name, _Y("silly old name")); -+ -+ if (in->fake && in != dev->root_dir && !force && !xmod) -+ return ret_val; -+ -+ yaffs_check_gc(dev, 0); -+ yaffs_check_obj_details_loaded(in); -+ -+ buffer = yaffs_get_temp_buffer(in->my_dev); -+ oh = (struct yaffs_obj_hdr *)buffer; -+ -+ prev_chunk_id = in->hdr_chunk; -+ -+ if (prev_chunk_id > 0) { -+ result = yaffs_rd_chunk_tags_nand(dev, prev_chunk_id, -+ buffer, &old_tags); -+ -+ yaffs_verify_oh(in, oh, &old_tags, 0); -+ memcpy(old_name, oh->name, sizeof(oh->name)); -+ memset(buffer, 0xff, sizeof(struct yaffs_obj_hdr)); -+ } else { -+ memset(buffer, 0xff, dev->data_bytes_per_chunk); -+ } -+ -+ oh->type = in->variant_type; -+ oh->yst_mode = in->yst_mode; -+ oh->shadows_obj = oh->inband_shadowed_obj_id = shadows; -+ -+ yaffs_load_attribs_oh(oh, in); -+ -+ if (in->parent) -+ oh->parent_obj_id = in->parent->obj_id; -+ else -+ oh->parent_obj_id = 0; -+ -+ if (name && *name) { -+ memset(oh->name, 0, sizeof(oh->name)); -+ yaffs_load_oh_from_name(dev, oh->name, name); -+ } else if (prev_chunk_id > 0) { -+ memcpy(oh->name, old_name, sizeof(oh->name)); -+ } else { -+ memset(oh->name, 0, sizeof(oh->name)); -+ } -+ -+ oh->is_shrink = is_shrink; -+ -+ switch (in->variant_type) { -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* Should not happen */ -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ if (oh->parent_obj_id != YAFFS_OBJECTID_DELETED && -+ oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED) -+ file_size = in->variant.file_variant.file_size; -+ yaffs_oh_size_load(oh, file_size); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ oh->equiv_id = in->variant.hardlink_variant.equiv_id; -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ alias = in->variant.symlink_variant.alias; -+ if (!alias) -+ alias = _Y("no alias"); -+ strncpy(oh->alias, alias, YAFFS_MAX_ALIAS_LENGTH); -+ oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; -+ break; -+ } -+ -+ /* process any xattrib modifications */ -+ if (xmod) -+ yaffs_apply_xattrib_mod(in, (char *)buffer, xmod); -+ -+ /* Tags */ -+ memset(&new_tags, 0, sizeof(new_tags)); -+ in->serial++; -+ new_tags.chunk_id = 0; -+ new_tags.obj_id = in->obj_id; -+ new_tags.serial_number = in->serial; -+ -+ /* Add extra info for file header */ -+ new_tags.extra_available = 1; -+ new_tags.extra_parent_id = oh->parent_obj_id; -+ new_tags.extra_file_size = file_size; -+ new_tags.extra_is_shrink = oh->is_shrink; -+ new_tags.extra_equiv_id = oh->equiv_id; -+ new_tags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0; -+ new_tags.extra_obj_type = in->variant_type; -+ yaffs_verify_oh(in, oh, &new_tags, 1); -+ -+ /* Create new chunk in NAND */ -+ new_chunk_id = -+ yaffs_write_new_chunk(dev, buffer, &new_tags, -+ (prev_chunk_id > 0) ? 1 : 0); -+ -+ if (buffer) -+ yaffs_release_temp_buffer(dev, buffer); -+ -+ if (new_chunk_id < 0) -+ return new_chunk_id; -+ -+ in->hdr_chunk = new_chunk_id; -+ -+ if (prev_chunk_id > 0) -+ yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); -+ -+ if (!yaffs_obj_cache_dirty(in)) -+ in->dirty = 0; -+ -+ /* If this was a shrink, then mark the block -+ * that the chunk lives on */ -+ if (is_shrink) { -+ bi = yaffs_get_block_info(in->my_dev, -+ new_chunk_id / -+ in->my_dev->param.chunks_per_block); -+ bi->has_shrink_hdr = 1; -+ } -+ -+ -+ return new_chunk_id; -+} -+ -+/*--------------------- File read/write ------------------------ -+ * Read and write have very similar structures. -+ * In general the read/write has three parts to it -+ * An incomplete chunk to start with (if the read/write is not chunk-aligned) -+ * Some complete chunks -+ * An incomplete chunk to end off with -+ * -+ * Curve-balls: the first chunk might also be the last chunk. -+ */ -+ -+int yaffs_file_rd(struct yaffs_obj *in, u8 * buffer, loff_t offset, int n_bytes) -+{ -+ int chunk; -+ u32 start; -+ int n_copy; -+ int n = n_bytes; -+ int n_done = 0; -+ struct yaffs_cache *cache; -+ struct yaffs_dev *dev; -+ -+ dev = in->my_dev; -+ -+ while (n > 0) { -+ yaffs_addr_to_chunk(dev, offset, &chunk, &start); -+ chunk++; -+ -+ /* OK now check for the curveball where the start and end are in -+ * the same chunk. -+ */ -+ if ((start + n) < dev->data_bytes_per_chunk) -+ n_copy = n; -+ else -+ n_copy = dev->data_bytes_per_chunk - start; -+ -+ cache = yaffs_find_chunk_cache(in, chunk); -+ -+ /* If the chunk is already in the cache or it is less than -+ * a whole chunk or we're using inband tags then use the cache -+ * (if there is caching) else bypass the cache. -+ */ -+ if (cache || n_copy != dev->data_bytes_per_chunk || -+ dev->param.inband_tags) { -+ if (dev->param.n_caches > 0) { -+ -+ /* If we can't find the data in the cache, -+ * then load it up. */ -+ -+ if (!cache) { -+ cache = -+ yaffs_grab_chunk_cache(in->my_dev); -+ cache->object = in; -+ cache->chunk_id = chunk; -+ cache->dirty = 0; -+ cache->locked = 0; -+ yaffs_rd_data_obj(in, chunk, -+ cache->data); -+ cache->n_bytes = 0; -+ } -+ -+ yaffs_use_cache(dev, cache, 0); -+ -+ cache->locked = 1; -+ -+ memcpy(buffer, &cache->data[start], n_copy); -+ -+ cache->locked = 0; -+ } else { -+ /* Read into the local buffer then copy.. */ -+ -+ u8 *local_buffer = -+ yaffs_get_temp_buffer(dev); -+ yaffs_rd_data_obj(in, chunk, local_buffer); -+ -+ memcpy(buffer, &local_buffer[start], n_copy); -+ -+ yaffs_release_temp_buffer(dev, local_buffer); -+ } -+ } else { -+ /* A full chunk. Read directly into the buffer. */ -+ yaffs_rd_data_obj(in, chunk, buffer); -+ } -+ n -= n_copy; -+ offset += n_copy; -+ buffer += n_copy; -+ n_done += n_copy; -+ } -+ return n_done; -+} -+ -+int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset, -+ int n_bytes, int write_through) -+{ -+ -+ int chunk; -+ u32 start; -+ int n_copy; -+ int n = n_bytes; -+ int n_done = 0; -+ int n_writeback; -+ loff_t start_write = offset; -+ int chunk_written = 0; -+ u32 n_bytes_read; -+ loff_t chunk_start; -+ struct yaffs_dev *dev; -+ -+ dev = in->my_dev; -+ -+ while (n > 0 && chunk_written >= 0) { -+ yaffs_addr_to_chunk(dev, offset, &chunk, &start); -+ -+ if (((loff_t)chunk) * -+ dev->data_bytes_per_chunk + start != offset || -+ start >= dev->data_bytes_per_chunk) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "AddrToChunk of offset %lld gives chunk %d start %d", -+ offset, chunk, start); -+ } -+ chunk++; /* File pos to chunk in file offset */ -+ -+ /* OK now check for the curveball where the start and end are in -+ * the same chunk. -+ */ -+ -+ if ((start + n) < dev->data_bytes_per_chunk) { -+ n_copy = n; -+ -+ /* Now calculate how many bytes to write back.... -+ * If we're overwriting and not writing to then end of -+ * file then we need to write back as much as was there -+ * before. -+ */ -+ -+ chunk_start = (((loff_t)(chunk - 1)) * -+ dev->data_bytes_per_chunk); -+ -+ if (chunk_start > in->variant.file_variant.file_size) -+ n_bytes_read = 0; /* Past end of file */ -+ else -+ n_bytes_read = -+ in->variant.file_variant.file_size - -+ chunk_start; -+ -+ if (n_bytes_read > dev->data_bytes_per_chunk) -+ n_bytes_read = dev->data_bytes_per_chunk; -+ -+ n_writeback = -+ (n_bytes_read > -+ (start + n)) ? n_bytes_read : (start + n); -+ -+ if (n_writeback < 0 || -+ n_writeback > dev->data_bytes_per_chunk) -+ BUG(); -+ -+ } else { -+ n_copy = dev->data_bytes_per_chunk - start; -+ n_writeback = dev->data_bytes_per_chunk; -+ } -+ -+ if (n_copy != dev->data_bytes_per_chunk || -+ !dev->param.cache_bypass_aligned || -+ dev->param.inband_tags) { -+ /* An incomplete start or end chunk (or maybe both -+ * start and end chunk), or we're using inband tags, -+ * or we're forcing writes through the cache, -+ * so we want to use the cache buffers. -+ */ -+ if (dev->param.n_caches > 0) { -+ struct yaffs_cache *cache; -+ -+ /* If we can't find the data in the cache, then -+ * load the cache */ -+ cache = yaffs_find_chunk_cache(in, chunk); -+ -+ if (!cache && -+ yaffs_check_alloc_available(dev, 1)) { -+ cache = yaffs_grab_chunk_cache(dev); -+ cache->object = in; -+ cache->chunk_id = chunk; -+ cache->dirty = 0; -+ cache->locked = 0; -+ yaffs_rd_data_obj(in, chunk, -+ cache->data); -+ } else if (cache && -+ !cache->dirty && -+ !yaffs_check_alloc_available(dev, -+ 1)) { -+ /* Drop the cache if it was a read cache -+ * item and no space check has been made -+ * for it. -+ */ -+ cache = NULL; -+ } -+ -+ if (cache) { -+ yaffs_use_cache(dev, cache, 1); -+ cache->locked = 1; -+ -+ memcpy(&cache->data[start], buffer, -+ n_copy); -+ -+ cache->locked = 0; -+ cache->n_bytes = n_writeback; -+ -+ if (write_through) { -+ chunk_written = -+ yaffs_wr_data_obj -+ (cache->object, -+ cache->chunk_id, -+ cache->data, -+ cache->n_bytes, 1); -+ cache->dirty = 0; -+ } -+ } else { -+ chunk_written = -1; /* fail write */ -+ } -+ } else { -+ /* An incomplete start or end chunk (or maybe -+ * both start and end chunk). Read into the -+ * local buffer then copy over and write back. -+ */ -+ -+ u8 *local_buffer = yaffs_get_temp_buffer(dev); -+ -+ yaffs_rd_data_obj(in, chunk, local_buffer); -+ memcpy(&local_buffer[start], buffer, n_copy); -+ -+ chunk_written = -+ yaffs_wr_data_obj(in, chunk, -+ local_buffer, -+ n_writeback, 0); -+ -+ yaffs_release_temp_buffer(dev, local_buffer); -+ } -+ } else { -+ /* A full chunk. Write directly from the buffer. */ -+ -+ chunk_written = -+ yaffs_wr_data_obj(in, chunk, buffer, -+ dev->data_bytes_per_chunk, 0); -+ -+ /* Since we've overwritten the cached data, -+ * we better invalidate it. */ -+ yaffs_invalidate_chunk_cache(in, chunk); -+ } -+ -+ if (chunk_written >= 0) { -+ n -= n_copy; -+ offset += n_copy; -+ buffer += n_copy; -+ n_done += n_copy; -+ } -+ } -+ -+ /* Update file object */ -+ -+ if ((start_write + n_done) > in->variant.file_variant.file_size) -+ in->variant.file_variant.file_size = (start_write + n_done); -+ -+ in->dirty = 1; -+ return n_done; -+} -+ -+int yaffs_wr_file(struct yaffs_obj *in, const u8 *buffer, loff_t offset, -+ int n_bytes, int write_through) -+{ -+ yaffs2_handle_hole(in, offset); -+ return yaffs_do_file_wr(in, buffer, offset, n_bytes, write_through); -+} -+ -+/* ---------------------- File resizing stuff ------------------ */ -+ -+static void yaffs_prune_chunks(struct yaffs_obj *in, loff_t new_size) -+{ -+ -+ struct yaffs_dev *dev = in->my_dev; -+ loff_t old_size = in->variant.file_variant.file_size; -+ int i; -+ int chunk_id; -+ u32 dummy; -+ int last_del; -+ int start_del; -+ -+ if (old_size > 0) -+ yaffs_addr_to_chunk(dev, old_size - 1, &last_del, &dummy); -+ else -+ last_del = 0; -+ -+ yaffs_addr_to_chunk(dev, new_size + dev->data_bytes_per_chunk - 1, -+ &start_del, &dummy); -+ last_del++; -+ start_del++; -+ -+ /* Delete backwards so that we don't end up with holes if -+ * power is lost part-way through the operation. -+ */ -+ for (i = last_del; i >= start_del; i--) { -+ /* NB this could be optimised somewhat, -+ * eg. could retrieve the tags and write them without -+ * using yaffs_chunk_del -+ */ -+ -+ chunk_id = yaffs_find_del_file_chunk(in, i, NULL); -+ -+ if (chunk_id < 1) -+ continue; -+ -+ if (chunk_id < -+ (dev->internal_start_block * dev->param.chunks_per_block) || -+ chunk_id >= -+ ((dev->internal_end_block + 1) * -+ dev->param.chunks_per_block)) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "Found daft chunk_id %d for %d", -+ chunk_id, i); -+ } else { -+ in->n_data_chunks--; -+ yaffs_chunk_del(dev, chunk_id, 1, __LINE__); -+ } -+ } -+} -+ -+void yaffs_resize_file_down(struct yaffs_obj *obj, loff_t new_size) -+{ -+ int new_full; -+ u32 new_partial; -+ struct yaffs_dev *dev = obj->my_dev; -+ -+ yaffs_addr_to_chunk(dev, new_size, &new_full, &new_partial); -+ -+ yaffs_prune_chunks(obj, new_size); -+ -+ if (new_partial != 0) { -+ int last_chunk = 1 + new_full; -+ u8 *local_buffer = yaffs_get_temp_buffer(dev); -+ -+ /* Rewrite the last chunk with its new size and zero pad */ -+ yaffs_rd_data_obj(obj, last_chunk, local_buffer); -+ memset(local_buffer + new_partial, 0, -+ dev->data_bytes_per_chunk - new_partial); -+ -+ yaffs_wr_data_obj(obj, last_chunk, local_buffer, -+ new_partial, 1); -+ -+ yaffs_release_temp_buffer(dev, local_buffer); -+ } -+ -+ obj->variant.file_variant.file_size = new_size; -+ -+ yaffs_prune_tree(dev, &obj->variant.file_variant); -+} -+ -+int yaffs_resize_file(struct yaffs_obj *in, loff_t new_size) -+{ -+ struct yaffs_dev *dev = in->my_dev; -+ loff_t old_size = in->variant.file_variant.file_size; -+ -+ yaffs_flush_file_cache(in); -+ yaffs_invalidate_whole_cache(in); -+ -+ yaffs_check_gc(dev, 0); -+ -+ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) -+ return YAFFS_FAIL; -+ -+ if (new_size == old_size) -+ return YAFFS_OK; -+ -+ if (new_size > old_size) { -+ yaffs2_handle_hole(in, new_size); -+ in->variant.file_variant.file_size = new_size; -+ } else { -+ /* new_size < old_size */ -+ yaffs_resize_file_down(in, new_size); -+ } -+ -+ /* Write a new object header to reflect the resize. -+ * show we've shrunk the file, if need be -+ * Do this only if the file is not in the deleted directories -+ * and is not shadowed. -+ */ -+ if (in->parent && -+ !in->is_shadowed && -+ in->parent->obj_id != YAFFS_OBJECTID_UNLINKED && -+ in->parent->obj_id != YAFFS_OBJECTID_DELETED) -+ yaffs_update_oh(in, NULL, 0, 0, 0, NULL); -+ -+ return YAFFS_OK; -+} -+ -+int yaffs_flush_file(struct yaffs_obj *in, int update_time, int data_sync) -+{ -+ if (!in->dirty) -+ return YAFFS_OK; -+ -+ yaffs_flush_file_cache(in); -+ -+ if (data_sync) -+ return YAFFS_OK; -+ -+ if (update_time) -+ yaffs_load_current_time(in, 0, 0); -+ -+ return (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >= 0) ? -+ YAFFS_OK : YAFFS_FAIL; -+} -+ -+ -+/* yaffs_del_file deletes the whole file data -+ * and the inode associated with the file. -+ * It does not delete the links associated with the file. -+ */ -+static int yaffs_unlink_file_if_needed(struct yaffs_obj *in) -+{ -+ int ret_val; -+ int del_now = 0; -+ struct yaffs_dev *dev = in->my_dev; -+ -+ if (!in->my_inode) -+ del_now = 1; -+ -+ if (del_now) { -+ ret_val = -+ yaffs_change_obj_name(in, in->my_dev->del_dir, -+ _Y("deleted"), 0, 0); -+ yaffs_trace(YAFFS_TRACE_TRACING, -+ "yaffs: immediate deletion of file %d", -+ in->obj_id); -+ in->deleted = 1; -+ in->my_dev->n_deleted_files++; -+ if (dev->param.disable_soft_del || dev->param.is_yaffs2) -+ yaffs_resize_file(in, 0); -+ yaffs_soft_del_file(in); -+ } else { -+ ret_val = -+ yaffs_change_obj_name(in, in->my_dev->unlinked_dir, -+ _Y("unlinked"), 0, 0); -+ } -+ return ret_val; -+} -+ -+static int yaffs_del_file(struct yaffs_obj *in) -+{ -+ int ret_val = YAFFS_OK; -+ int deleted; /* Need to cache value on stack if in is freed */ -+ struct yaffs_dev *dev = in->my_dev; -+ -+ if (dev->param.disable_soft_del || dev->param.is_yaffs2) -+ yaffs_resize_file(in, 0); -+ -+ if (in->n_data_chunks > 0) { -+ /* Use soft deletion if there is data in the file. -+ * That won't be the case if it has been resized to zero. -+ */ -+ if (!in->unlinked) -+ ret_val = yaffs_unlink_file_if_needed(in); -+ -+ deleted = in->deleted; -+ -+ if (ret_val == YAFFS_OK && in->unlinked && !in->deleted) { -+ in->deleted = 1; -+ deleted = 1; -+ in->my_dev->n_deleted_files++; -+ yaffs_soft_del_file(in); -+ } -+ return deleted ? YAFFS_OK : YAFFS_FAIL; -+ } else { -+ /* The file has no data chunks so we toss it immediately */ -+ yaffs_free_tnode(in->my_dev, in->variant.file_variant.top); -+ in->variant.file_variant.top = NULL; -+ yaffs_generic_obj_del(in); -+ -+ return YAFFS_OK; -+ } -+} -+ -+int yaffs_is_non_empty_dir(struct yaffs_obj *obj) -+{ -+ return (obj && -+ obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) && -+ !(list_empty(&obj->variant.dir_variant.children)); -+} -+ -+static int yaffs_del_dir(struct yaffs_obj *obj) -+{ -+ /* First check that the directory is empty. */ -+ if (yaffs_is_non_empty_dir(obj)) -+ return YAFFS_FAIL; -+ -+ return yaffs_generic_obj_del(obj); -+} -+ -+static int yaffs_del_symlink(struct yaffs_obj *in) -+{ -+ kfree(in->variant.symlink_variant.alias); -+ in->variant.symlink_variant.alias = NULL; -+ -+ return yaffs_generic_obj_del(in); -+} -+ -+static int yaffs_del_link(struct yaffs_obj *in) -+{ -+ /* remove this hardlink from the list associated with the equivalent -+ * object -+ */ -+ list_del_init(&in->hard_links); -+ return yaffs_generic_obj_del(in); -+} -+ -+int yaffs_del_obj(struct yaffs_obj *obj) -+{ -+ int ret_val = -1; -+ -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ ret_val = yaffs_del_file(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ if (!list_empty(&obj->variant.dir_variant.dirty)) { -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, -+ "Remove object %d from dirty directories", -+ obj->obj_id); -+ list_del_init(&obj->variant.dir_variant.dirty); -+ } -+ return yaffs_del_dir(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ ret_val = yaffs_del_symlink(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ ret_val = yaffs_del_link(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ ret_val = yaffs_generic_obj_del(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ ret_val = 0; -+ break; /* should not happen. */ -+ } -+ return ret_val; -+} -+ -+ -+static void yaffs_empty_dir_to_dir(struct yaffs_obj *from_dir, -+ struct yaffs_obj *to_dir) -+{ -+ struct yaffs_obj *obj; -+ struct list_head *lh; -+ struct list_head *n; -+ -+ list_for_each_safe(lh, n, &from_dir->variant.dir_variant.children) { -+ obj = list_entry(lh, struct yaffs_obj, siblings); -+ yaffs_add_obj_to_dir(to_dir, obj); -+ } -+} -+ -+struct yaffs_obj *yaffs_retype_obj(struct yaffs_obj *obj, -+ enum yaffs_obj_type type) -+{ -+ /* Tear down the old variant */ -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ /* Nuke file data */ -+ yaffs_resize_file(obj, 0); -+ yaffs_free_tnode(obj->my_dev, obj->variant.file_variant.top); -+ obj->variant.file_variant.top = NULL; -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Put the children in lost and found. */ -+ yaffs_empty_dir_to_dir(obj, obj->my_dev->lost_n_found); -+ if (!list_empty(&obj->variant.dir_variant.dirty)) -+ list_del_init(&obj->variant.dir_variant.dirty); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ /* Nuke symplink data */ -+ kfree(obj->variant.symlink_variant.alias); -+ obj->variant.symlink_variant.alias = NULL; -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ list_del_init(&obj->hard_links); -+ break; -+ default: -+ break; -+ } -+ -+ memset(&obj->variant, 0, sizeof(obj->variant)); -+ -+ /*Set up new variant if the memset is not enough. */ -+ switch (type) { -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ INIT_LIST_HEAD(&obj->variant.dir_variant.children); -+ INIT_LIST_HEAD(&obj->variant.dir_variant.dirty); -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ default: -+ break; -+ } -+ -+ obj->variant_type = type; -+ -+ return obj; -+ -+} -+ -+static int yaffs_unlink_worker(struct yaffs_obj *obj) -+{ -+ int del_now = 0; -+ -+ if (!obj) -+ return YAFFS_FAIL; -+ -+ if (!obj->my_inode) -+ del_now = 1; -+ -+ yaffs_update_parent(obj->parent); -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { -+ return yaffs_del_link(obj); -+ } else if (!list_empty(&obj->hard_links)) { -+ /* Curve ball: We're unlinking an object that has a hardlink. -+ * -+ * This problem arises because we are not strictly following -+ * The Linux link/inode model. -+ * -+ * We can't really delete the object. -+ * Instead, we do the following: -+ * - Select a hardlink. -+ * - Unhook it from the hard links -+ * - Move it from its parent directory so that the rename works. -+ * - Rename the object to the hardlink's name. -+ * - Delete the hardlink -+ */ -+ -+ struct yaffs_obj *hl; -+ struct yaffs_obj *parent; -+ int ret_val; -+ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; -+ -+ hl = list_entry(obj->hard_links.next, struct yaffs_obj, -+ hard_links); -+ -+ yaffs_get_obj_name(hl, name, YAFFS_MAX_NAME_LENGTH + 1); -+ parent = hl->parent; -+ -+ list_del_init(&hl->hard_links); -+ -+ yaffs_add_obj_to_dir(obj->my_dev->unlinked_dir, hl); -+ -+ ret_val = yaffs_change_obj_name(obj, parent, name, 0, 0); -+ -+ if (ret_val == YAFFS_OK) -+ ret_val = yaffs_generic_obj_del(hl); -+ -+ return ret_val; -+ -+ } else if (del_now) { -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ return yaffs_del_file(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ list_del_init(&obj->variant.dir_variant.dirty); -+ return yaffs_del_dir(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ return yaffs_del_symlink(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ return yaffs_generic_obj_del(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ default: -+ return YAFFS_FAIL; -+ } -+ } else if (yaffs_is_non_empty_dir(obj)) { -+ return YAFFS_FAIL; -+ } else { -+ return yaffs_change_obj_name(obj, obj->my_dev->unlinked_dir, -+ _Y("unlinked"), 0, 0); -+ } -+} -+ -+static int yaffs_unlink_obj(struct yaffs_obj *obj) -+{ -+ if (obj && obj->unlink_allowed) -+ return yaffs_unlink_worker(obj); -+ -+ return YAFFS_FAIL; -+} -+ -+int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR *name) -+{ -+ struct yaffs_obj *obj; -+ -+ obj = yaffs_find_by_name(dir, name); -+ return yaffs_unlink_obj(obj); -+} -+ -+/* Note: -+ * If old_name is NULL then we take old_dir as the object to be renamed. -+ */ -+int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR *old_name, -+ struct yaffs_obj *new_dir, const YCHAR *new_name) -+{ -+ struct yaffs_obj *obj = NULL; -+ struct yaffs_obj *existing_target = NULL; -+ int force = 0; -+ int result; -+ struct yaffs_dev *dev; -+ -+ if (!old_dir || old_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ BUG(); -+ return YAFFS_FAIL; -+ } -+ if (!new_dir || new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ BUG(); -+ return YAFFS_FAIL; -+ } -+ -+ dev = old_dir->my_dev; -+ -+#ifdef CONFIG_YAFFS_CASE_INSENSITIVE -+ /* Special case for case insemsitive systems. -+ * While look-up is case insensitive, the name isn't. -+ * Therefore we might want to change x.txt to X.txt -+ */ -+ if (old_dir == new_dir && -+ old_name && new_name && -+ strcmp(old_name, new_name) == 0) -+ force = 1; -+#endif -+ -+ if (strnlen(new_name, YAFFS_MAX_NAME_LENGTH + 1) > -+ YAFFS_MAX_NAME_LENGTH) -+ /* ENAMETOOLONG */ -+ return YAFFS_FAIL; -+ -+ if (old_name) -+ obj = yaffs_find_by_name(old_dir, old_name); -+ else{ -+ obj = old_dir; -+ old_dir = obj->parent; -+ } -+ -+ if (obj && obj->rename_allowed) { -+ /* Now handle an existing target, if there is one */ -+ existing_target = yaffs_find_by_name(new_dir, new_name); -+ if (yaffs_is_non_empty_dir(existing_target)) { -+ return YAFFS_FAIL; /* ENOTEMPTY */ -+ } else if (existing_target && existing_target != obj) { -+ /* Nuke the target first, using shadowing, -+ * but only if it isn't the same object. -+ * -+ * Note we must disable gc here otherwise it can mess -+ * up the shadowing. -+ * -+ */ -+ dev->gc_disable = 1; -+ yaffs_change_obj_name(obj, new_dir, new_name, force, -+ existing_target->obj_id); -+ existing_target->is_shadowed = 1; -+ yaffs_unlink_obj(existing_target); -+ dev->gc_disable = 0; -+ } -+ -+ result = yaffs_change_obj_name(obj, new_dir, new_name, 1, 0); -+ -+ yaffs_update_parent(old_dir); -+ if (new_dir != old_dir) -+ yaffs_update_parent(new_dir); -+ -+ return result; -+ } -+ return YAFFS_FAIL; -+} -+ -+/*----------------------- Initialisation Scanning ---------------------- */ -+ -+void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, -+ int backward_scanning) -+{ -+ struct yaffs_obj *obj; -+ -+ if (backward_scanning) { -+ /* Handle YAFFS2 case (backward scanning) -+ * If the shadowed object exists then ignore. -+ */ -+ obj = yaffs_find_by_number(dev, obj_id); -+ if (obj) -+ return; -+ } -+ -+ /* Let's create it (if it does not exist) assuming it is a file so that -+ * it can do shrinking etc. -+ * We put it in unlinked dir to be cleaned up after the scanning -+ */ -+ obj = -+ yaffs_find_or_create_by_number(dev, obj_id, YAFFS_OBJECT_TYPE_FILE); -+ if (!obj) -+ return; -+ obj->is_shadowed = 1; -+ yaffs_add_obj_to_dir(dev->unlinked_dir, obj); -+ obj->variant.file_variant.shrink_size = 0; -+ obj->valid = 1; /* So that we don't read any other info. */ -+} -+ -+void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list) -+{ -+ struct list_head *lh; -+ struct list_head *save; -+ struct yaffs_obj *hl; -+ struct yaffs_obj *in; -+ -+ list_for_each_safe(lh, save, hard_list) { -+ hl = list_entry(lh, struct yaffs_obj, hard_links); -+ in = yaffs_find_by_number(dev, -+ hl->variant.hardlink_variant.equiv_id); -+ -+ if (in) { -+ /* Add the hardlink pointers */ -+ hl->variant.hardlink_variant.equiv_obj = in; -+ list_add(&hl->hard_links, &in->hard_links); -+ } else { -+ /* Todo Need to report/handle this better. -+ * Got a problem... hardlink to a non-existant object -+ */ -+ hl->variant.hardlink_variant.equiv_obj = NULL; -+ INIT_LIST_HEAD(&hl->hard_links); -+ } -+ } -+} -+ -+static void yaffs_strip_deleted_objs(struct yaffs_dev *dev) -+{ -+ /* -+ * Sort out state of unlinked and deleted objects after scanning. -+ */ -+ struct list_head *i; -+ struct list_head *n; -+ struct yaffs_obj *l; -+ -+ if (dev->read_only) -+ return; -+ -+ /* Soft delete all the unlinked files */ -+ list_for_each_safe(i, n, -+ &dev->unlinked_dir->variant.dir_variant.children) { -+ l = list_entry(i, struct yaffs_obj, siblings); -+ yaffs_del_obj(l); -+ } -+ -+ list_for_each_safe(i, n, &dev->del_dir->variant.dir_variant.children) { -+ l = list_entry(i, struct yaffs_obj, siblings); -+ yaffs_del_obj(l); -+ } -+} -+ -+/* -+ * This code iterates through all the objects making sure that they are rooted. -+ * Any unrooted objects are re-rooted in lost+found. -+ * An object needs to be in one of: -+ * - Directly under deleted, unlinked -+ * - Directly or indirectly under root. -+ * -+ * Note: -+ * This code assumes that we don't ever change the current relationships -+ * between directories: -+ * root_dir->parent == unlinked_dir->parent == del_dir->parent == NULL -+ * lost-n-found->parent == root_dir -+ * -+ * This fixes the problem where directories might have inadvertently been -+ * deleted leaving the object "hanging" without being rooted in the -+ * directory tree. -+ */ -+ -+static int yaffs_has_null_parent(struct yaffs_dev *dev, struct yaffs_obj *obj) -+{ -+ return (obj == dev->del_dir || -+ obj == dev->unlinked_dir || obj == dev->root_dir); -+} -+ -+static void yaffs_fix_hanging_objs(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_obj *parent; -+ int i; -+ struct list_head *lh; -+ struct list_head *n; -+ int depth_limit; -+ int hanging; -+ -+ if (dev->read_only) -+ return; -+ -+ /* Iterate through the objects in each hash entry, -+ * looking at each object. -+ * Make sure it is rooted. -+ */ -+ -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ list_for_each_safe(lh, n, &dev->obj_bucket[i].list) { -+ obj = list_entry(lh, struct yaffs_obj, hash_link); -+ parent = obj->parent; -+ -+ if (yaffs_has_null_parent(dev, obj)) { -+ /* These directories are not hanging */ -+ hanging = 0; -+ } else if (!parent || -+ parent->variant_type != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { -+ hanging = 1; -+ } else if (yaffs_has_null_parent(dev, parent)) { -+ hanging = 0; -+ } else { -+ /* -+ * Need to follow the parent chain to -+ * see if it is hanging. -+ */ -+ hanging = 0; -+ depth_limit = 100; -+ -+ while (parent != dev->root_dir && -+ parent->parent && -+ parent->parent->variant_type == -+ YAFFS_OBJECT_TYPE_DIRECTORY && -+ depth_limit > 0) { -+ parent = parent->parent; -+ depth_limit--; -+ } -+ if (parent != dev->root_dir) -+ hanging = 1; -+ } -+ if (hanging) { -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "Hanging object %d moved to lost and found", -+ obj->obj_id); -+ yaffs_add_obj_to_dir(dev->lost_n_found, obj); -+ } -+ } -+ } -+} -+ -+/* -+ * Delete directory contents for cleaning up lost and found. -+ */ -+static void yaffs_del_dir_contents(struct yaffs_obj *dir) -+{ -+ struct yaffs_obj *obj; -+ struct list_head *lh; -+ struct list_head *n; -+ -+ if (dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) -+ BUG(); -+ -+ list_for_each_safe(lh, n, &dir->variant.dir_variant.children) { -+ obj = list_entry(lh, struct yaffs_obj, siblings); -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) -+ yaffs_del_dir_contents(obj); -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "Deleting lost_found object %d", -+ obj->obj_id); -+ yaffs_unlink_obj(obj); -+ } -+} -+ -+static void yaffs_empty_l_n_f(struct yaffs_dev *dev) -+{ -+ yaffs_del_dir_contents(dev->lost_n_found); -+} -+ -+ -+struct yaffs_obj *yaffs_find_by_name(struct yaffs_obj *directory, -+ const YCHAR *name) -+{ -+ int sum; -+ struct list_head *i; -+ YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; -+ struct yaffs_obj *l; -+ -+ if (!name) -+ return NULL; -+ -+ if (!directory) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "tragedy: yaffs_find_by_name: null pointer directory" -+ ); -+ BUG(); -+ return NULL; -+ } -+ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "tragedy: yaffs_find_by_name: non-directory" -+ ); -+ BUG(); -+ } -+ -+ sum = yaffs_calc_name_sum(name); -+ -+ list_for_each(i, &directory->variant.dir_variant.children) { -+ l = list_entry(i, struct yaffs_obj, siblings); -+ -+ if (l->parent != directory) -+ BUG(); -+ -+ yaffs_check_obj_details_loaded(l); -+ -+ /* Special case for lost-n-found */ -+ if (l->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { -+ if (!strcmp(name, YAFFS_LOSTNFOUND_NAME)) -+ return l; -+ } else if (l->sum == sum || l->hdr_chunk <= 0) { -+ /* LostnFound chunk called Objxxx -+ * Do a real check -+ */ -+ yaffs_get_obj_name(l, buffer, -+ YAFFS_MAX_NAME_LENGTH + 1); -+ if (!strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH)) -+ return l; -+ } -+ } -+ return NULL; -+} -+ -+/* GetEquivalentObject dereferences any hard links to get to the -+ * actual object. -+ */ -+ -+struct yaffs_obj *yaffs_get_equivalent_obj(struct yaffs_obj *obj) -+{ -+ if (obj && obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { -+ obj = obj->variant.hardlink_variant.equiv_obj; -+ yaffs_check_obj_details_loaded(obj); -+ } -+ return obj; -+} -+ -+/* -+ * A note or two on object names. -+ * * If the object name is missing, we then make one up in the form objnnn -+ * -+ * * ASCII names are stored in the object header's name field from byte zero -+ * * Unicode names are historically stored starting from byte zero. -+ * -+ * Then there are automatic Unicode names... -+ * The purpose of these is to save names in a way that can be read as -+ * ASCII or Unicode names as appropriate, thus allowing a Unicode and ASCII -+ * system to share files. -+ * -+ * These automatic unicode are stored slightly differently... -+ * - If the name can fit in the ASCII character space then they are saved as -+ * ascii names as per above. -+ * - If the name needs Unicode then the name is saved in Unicode -+ * starting at oh->name[1]. -+ -+ */ -+static void yaffs_fix_null_name(struct yaffs_obj *obj, YCHAR *name, -+ int buffer_size) -+{ -+ /* Create an object name if we could not find one. */ -+ if (strnlen(name, YAFFS_MAX_NAME_LENGTH) == 0) { -+ YCHAR local_name[20]; -+ YCHAR num_string[20]; -+ YCHAR *x = &num_string[19]; -+ unsigned v = obj->obj_id; -+ num_string[19] = 0; -+ while (v > 0) { -+ x--; -+ *x = '0' + (v % 10); -+ v /= 10; -+ } -+ /* make up a name */ -+ strcpy(local_name, YAFFS_LOSTNFOUND_PREFIX); -+ strcat(local_name, x); -+ strncpy(name, local_name, buffer_size - 1); -+ } -+} -+ -+int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR *name, int buffer_size) -+{ -+ memset(name, 0, buffer_size * sizeof(YCHAR)); -+ yaffs_check_obj_details_loaded(obj); -+ if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { -+ strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1); -+ } else if (obj->short_name[0]) { -+ strcpy(name, obj->short_name); -+ } else if (obj->hdr_chunk > 0) { -+ int result; -+ u8 *buffer = yaffs_get_temp_buffer(obj->my_dev); -+ -+ struct yaffs_obj_hdr *oh = (struct yaffs_obj_hdr *)buffer; -+ -+ memset(buffer, 0, obj->my_dev->data_bytes_per_chunk); -+ -+ if (obj->hdr_chunk > 0) { -+ result = yaffs_rd_chunk_tags_nand(obj->my_dev, -+ obj->hdr_chunk, -+ buffer, NULL); -+ } -+ yaffs_load_name_from_oh(obj->my_dev, name, oh->name, -+ buffer_size); -+ -+ yaffs_release_temp_buffer(obj->my_dev, buffer); -+ } -+ -+ yaffs_fix_null_name(obj, name, buffer_size); -+ -+ return strnlen(name, YAFFS_MAX_NAME_LENGTH); -+} -+ -+loff_t yaffs_get_obj_length(struct yaffs_obj *obj) -+{ -+ /* Dereference any hard linking */ -+ obj = yaffs_get_equivalent_obj(obj); -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ return obj->variant.file_variant.file_size; -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) { -+ if (!obj->variant.symlink_variant.alias) -+ return 0; -+ return strnlen(obj->variant.symlink_variant.alias, -+ YAFFS_MAX_ALIAS_LENGTH); -+ } else { -+ /* Only a directory should drop through to here */ -+ return obj->my_dev->data_bytes_per_chunk; -+ } -+} -+ -+int yaffs_get_obj_link_count(struct yaffs_obj *obj) -+{ -+ int count = 0; -+ struct list_head *i; -+ -+ if (!obj->unlinked) -+ count++; /* the object itself */ -+ -+ list_for_each(i, &obj->hard_links) -+ count++; /* add the hard links; */ -+ -+ return count; -+} -+ -+int yaffs_get_obj_inode(struct yaffs_obj *obj) -+{ -+ obj = yaffs_get_equivalent_obj(obj); -+ -+ return obj->obj_id; -+} -+ -+unsigned yaffs_get_obj_type(struct yaffs_obj *obj) -+{ -+ obj = yaffs_get_equivalent_obj(obj); -+ -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ return DT_REG; -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ return DT_DIR; -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ return DT_LNK; -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ return DT_REG; -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ if (S_ISFIFO(obj->yst_mode)) -+ return DT_FIFO; -+ if (S_ISCHR(obj->yst_mode)) -+ return DT_CHR; -+ if (S_ISBLK(obj->yst_mode)) -+ return DT_BLK; -+ if (S_ISSOCK(obj->yst_mode)) -+ return DT_SOCK; -+ return DT_REG; -+ break; -+ default: -+ return DT_REG; -+ break; -+ } -+} -+ -+YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj) -+{ -+ obj = yaffs_get_equivalent_obj(obj); -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) -+ return yaffs_clone_str(obj->variant.symlink_variant.alias); -+ else -+ return yaffs_clone_str(_Y("")); -+} -+ -+/*--------------------------- Initialisation code -------------------------- */ -+ -+static int yaffs_check_dev_fns(struct yaffs_dev *dev) -+{ -+ struct yaffs_driver *drv = &dev->drv; -+ struct yaffs_tags_handler *tagger = &dev->tagger; -+ -+ /* Common functions, gotta have */ -+ if (!drv->drv_read_chunk_fn || -+ !drv->drv_write_chunk_fn || -+ !drv->drv_erase_fn) -+ return 0; -+ -+ if (dev->param.is_yaffs2 && -+ (!drv->drv_mark_bad_fn || !drv->drv_check_bad_fn)) -+ return 0; -+ -+ /* Install the default tags marshalling functions if needed. */ -+ yaffs_tags_compat_install(dev); -+ yaffs_tags_marshall_install(dev); -+ -+ /* Check we now have the marshalling functions required. */ -+ if (!tagger->write_chunk_tags_fn || -+ !tagger->read_chunk_tags_fn || -+ !tagger->query_block_fn || -+ !tagger->mark_bad_fn) -+ return 0; -+ -+ return 1; -+} -+ -+static int yaffs_create_initial_dir(struct yaffs_dev *dev) -+{ -+ /* Initialise the unlinked, deleted, root and lost+found directories */ -+ dev->lost_n_found = dev->root_dir = NULL; -+ dev->unlinked_dir = dev->del_dir = NULL; -+ dev->unlinked_dir = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); -+ dev->del_dir = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); -+ dev->root_dir = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT, -+ YAFFS_ROOT_MODE | S_IFDIR); -+ dev->lost_n_found = -+ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND, -+ YAFFS_LOSTNFOUND_MODE | S_IFDIR); -+ -+ if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir -+ && dev->del_dir) { -+ yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found); -+ return YAFFS_OK; -+ } -+ return YAFFS_FAIL; -+} -+ -+/* Low level init. -+ * Typically only used by yaffs_guts_initialise, but also used by the -+ * Low level yaffs driver tests. -+ */ -+ -+int yaffs_guts_ll_init(struct yaffs_dev *dev) -+{ -+ -+ -+ yaffs_trace(YAFFS_TRACE_TRACING, "yaffs: yaffs_ll_init()"); -+ -+ if (!dev) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: Need a device" -+ ); -+ return YAFFS_FAIL; -+ } -+ -+ if (dev->ll_init) -+ return YAFFS_OK; -+ -+ dev->internal_start_block = dev->param.start_block; -+ dev->internal_end_block = dev->param.end_block; -+ dev->block_offset = 0; -+ dev->chunk_offset = 0; -+ dev->n_free_chunks = 0; -+ -+ dev->gc_block = 0; -+ -+ if (dev->param.start_block == 0) { -+ dev->internal_start_block = dev->param.start_block + 1; -+ dev->internal_end_block = dev->param.end_block + 1; -+ dev->block_offset = 1; -+ dev->chunk_offset = dev->param.chunks_per_block; -+ } -+ -+ /* Check geometry parameters. */ -+ -+ if ((!dev->param.inband_tags && dev->param.is_yaffs2 && -+ dev->param.total_bytes_per_chunk < 1024) || -+ (!dev->param.is_yaffs2 && -+ dev->param.total_bytes_per_chunk < 512) || -+ (dev->param.inband_tags && !dev->param.is_yaffs2) || -+ dev->param.chunks_per_block < 2 || -+ dev->param.n_reserved_blocks < 2 || -+ dev->internal_start_block <= 0 || -+ dev->internal_end_block <= 0 || -+ dev->internal_end_block <= -+ (dev->internal_start_block + dev->param.n_reserved_blocks + 2) -+ ) { -+ /* otherwise it is too small */ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "NAND geometry problems: chunk size %d, type is yaffs%s, inband_tags %d ", -+ dev->param.total_bytes_per_chunk, -+ dev->param.is_yaffs2 ? "2" : "", -+ dev->param.inband_tags); -+ return YAFFS_FAIL; -+ } -+ -+ /* Sort out space for inband tags, if required */ -+ if (dev->param.inband_tags) -+ dev->data_bytes_per_chunk = -+ dev->param.total_bytes_per_chunk - -+ sizeof(struct yaffs_packed_tags2_tags_only); -+ else -+ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk; -+ -+ /* Got the right mix of functions? */ -+ if (!yaffs_check_dev_fns(dev)) { -+ /* Function missing */ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "device function(s) missing or wrong"); -+ -+ return YAFFS_FAIL; -+ } -+ -+ if (yaffs_init_nand(dev) != YAFFS_OK) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "InitialiseNAND failed"); -+ return YAFFS_FAIL; -+ } -+ -+ return YAFFS_OK; -+} -+ -+ -+int yaffs_guts_format_dev(struct yaffs_dev *dev) -+{ -+ int i; -+ enum yaffs_block_state state; -+ u32 dummy; -+ -+ if(yaffs_guts_ll_init(dev) != YAFFS_OK) -+ return YAFFS_FAIL; -+ -+ if(dev->is_mounted) -+ return YAFFS_FAIL; -+ -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ yaffs_query_init_block_state(dev, i, &state, &dummy); -+ if (state != YAFFS_BLOCK_STATE_DEAD) -+ yaffs_erase_block(dev, i); -+ } -+ -+ return YAFFS_OK; -+} -+ -+ -+int yaffs_guts_initialise(struct yaffs_dev *dev) -+{ -+ int init_failed = 0; -+ unsigned x; -+ int bits; -+ -+ if(yaffs_guts_ll_init(dev) != YAFFS_OK) -+ return YAFFS_FAIL; -+ -+ if (dev->is_mounted) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "device already mounted"); -+ return YAFFS_FAIL; -+ } -+ -+ dev->is_mounted = 1; -+ -+ /* OK now calculate a few things for the device */ -+ -+ /* -+ * Calculate all the chunk size manipulation numbers: -+ */ -+ x = dev->data_bytes_per_chunk; -+ /* We always use dev->chunk_shift and dev->chunk_div */ -+ dev->chunk_shift = calc_shifts(x); -+ x >>= dev->chunk_shift; -+ dev->chunk_div = x; -+ /* We only use chunk mask if chunk_div is 1 */ -+ dev->chunk_mask = (1 << dev->chunk_shift) - 1; -+ -+ /* -+ * Calculate chunk_grp_bits. -+ * We need to find the next power of 2 > than internal_end_block -+ */ -+ -+ x = dev->param.chunks_per_block * (dev->internal_end_block + 1); -+ -+ bits = calc_shifts_ceiling(x); -+ -+ /* Set up tnode width if wide tnodes are enabled. */ -+ if (!dev->param.wide_tnodes_disabled) { -+ /* bits must be even so that we end up with 32-bit words */ -+ if (bits & 1) -+ bits++; -+ if (bits < 16) -+ dev->tnode_width = 16; -+ else -+ dev->tnode_width = bits; -+ } else { -+ dev->tnode_width = 16; -+ } -+ -+ dev->tnode_mask = (1 << dev->tnode_width) - 1; -+ -+ /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), -+ * so if the bitwidth of the -+ * chunk range we're using is greater than 16 we need -+ * to figure out chunk shift and chunk_grp_size -+ */ -+ -+ if (bits <= dev->tnode_width) -+ dev->chunk_grp_bits = 0; -+ else -+ dev->chunk_grp_bits = bits - dev->tnode_width; -+ -+ dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8; -+ if (dev->tnode_size < sizeof(struct yaffs_tnode)) -+ dev->tnode_size = sizeof(struct yaffs_tnode); -+ -+ dev->chunk_grp_size = 1 << dev->chunk_grp_bits; -+ -+ if (dev->param.chunks_per_block < dev->chunk_grp_size) { -+ /* We have a problem because the soft delete won't work if -+ * the chunk group size > chunks per block. -+ * This can be remedied by using larger "virtual blocks". -+ */ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "chunk group too large"); -+ -+ return YAFFS_FAIL; -+ } -+ -+ /* Finished verifying the device, continue with initialisation */ -+ -+ /* More device initialisation */ -+ dev->all_gcs = 0; -+ dev->passive_gc_count = 0; -+ dev->oldest_dirty_gc_count = 0; -+ dev->bg_gcs = 0; -+ dev->gc_block_finder = 0; -+ dev->buffered_block = -1; -+ dev->doing_buffered_block_rewrite = 0; -+ dev->n_deleted_files = 0; -+ dev->n_bg_deletions = 0; -+ dev->n_unlinked_files = 0; -+ dev->n_ecc_fixed = 0; -+ dev->n_ecc_unfixed = 0; -+ dev->n_tags_ecc_fixed = 0; -+ dev->n_tags_ecc_unfixed = 0; -+ dev->n_erase_failures = 0; -+ dev->n_erased_blocks = 0; -+ dev->gc_disable = 0; -+ dev->has_pending_prioritised_gc = 1; -+ /* Assume the worst for now, will get fixed on first GC */ -+ INIT_LIST_HEAD(&dev->dirty_dirs); -+ dev->oldest_dirty_seq = 0; -+ dev->oldest_dirty_block = 0; -+ -+ /* Initialise temporary buffers and caches. */ -+ if (!yaffs_init_tmp_buffers(dev)) -+ init_failed = 1; -+ -+ dev->cache = NULL; -+ dev->gc_cleanup_list = NULL; -+ -+ if (!init_failed && dev->param.n_caches > 0) { -+ int i; -+ void *buf; -+ int cache_bytes = -+ dev->param.n_caches * sizeof(struct yaffs_cache); -+ -+ if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES) -+ dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES; -+ -+ dev->cache = kmalloc(cache_bytes, GFP_NOFS); -+ -+ buf = (u8 *) dev->cache; -+ -+ if (dev->cache) -+ memset(dev->cache, 0, cache_bytes); -+ -+ for (i = 0; i < dev->param.n_caches && buf; i++) { -+ dev->cache[i].object = NULL; -+ dev->cache[i].last_use = 0; -+ dev->cache[i].dirty = 0; -+ dev->cache[i].data = buf = -+ kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); -+ } -+ if (!buf) -+ init_failed = 1; -+ -+ dev->cache_last_use = 0; -+ } -+ -+ dev->cache_hits = 0; -+ -+ if (!init_failed) { -+ dev->gc_cleanup_list = -+ kmalloc(dev->param.chunks_per_block * sizeof(u32), -+ GFP_NOFS); -+ if (!dev->gc_cleanup_list) -+ init_failed = 1; -+ } -+ -+ if (dev->param.is_yaffs2) -+ dev->param.use_header_file_size = 1; -+ -+ if (!init_failed && !yaffs_init_blocks(dev)) -+ init_failed = 1; -+ -+ yaffs_init_tnodes_and_objs(dev); -+ -+ if (!init_failed && !yaffs_create_initial_dir(dev)) -+ init_failed = 1; -+ -+ if (!init_failed && dev->param.is_yaffs2 && -+ !dev->param.disable_summary && -+ !yaffs_summary_init(dev)) -+ init_failed = 1; -+ -+ if (!init_failed) { -+ /* Now scan the flash. */ -+ if (dev->param.is_yaffs2) { -+ if (yaffs2_checkpt_restore(dev)) { -+ yaffs_check_obj_details_loaded(dev->root_dir); -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT | -+ YAFFS_TRACE_MOUNT, -+ "yaffs: restored from checkpoint" -+ ); -+ } else { -+ -+ /* Clean up the mess caused by an aborted -+ * checkpoint load then scan backwards. -+ */ -+ yaffs_deinit_blocks(dev); -+ -+ yaffs_deinit_tnodes_and_objs(dev); -+ -+ dev->n_erased_blocks = 0; -+ dev->n_free_chunks = 0; -+ dev->alloc_block = -1; -+ dev->alloc_page = -1; -+ dev->n_deleted_files = 0; -+ dev->n_unlinked_files = 0; -+ dev->n_bg_deletions = 0; -+ -+ if (!init_failed && !yaffs_init_blocks(dev)) -+ init_failed = 1; -+ -+ yaffs_init_tnodes_and_objs(dev); -+ -+ if (!init_failed -+ && !yaffs_create_initial_dir(dev)) -+ init_failed = 1; -+ -+ if (!init_failed && !yaffs2_scan_backwards(dev)) -+ init_failed = 1; -+ } -+ } else if (!yaffs1_scan(dev)) { -+ init_failed = 1; -+ } -+ -+ yaffs_strip_deleted_objs(dev); -+ yaffs_fix_hanging_objs(dev); -+ if (dev->param.empty_lost_n_found) -+ yaffs_empty_l_n_f(dev); -+ } -+ -+ if (init_failed) { -+ /* Clean up the mess */ -+ yaffs_trace(YAFFS_TRACE_TRACING, -+ "yaffs: yaffs_guts_initialise() aborted."); -+ -+ yaffs_deinitialise(dev); -+ return YAFFS_FAIL; -+ } -+ -+ /* Zero out stats */ -+ dev->n_page_reads = 0; -+ dev->n_page_writes = 0; -+ dev->n_erasures = 0; -+ dev->n_gc_copies = 0; -+ dev->n_retried_writes = 0; -+ -+ dev->n_retired_blocks = 0; -+ -+ yaffs_verify_free_chunks(dev); -+ yaffs_verify_blocks(dev); -+ -+ /* Clean up any aborted checkpoint data */ -+ if (!dev->is_checkpointed && dev->blocks_in_checkpt > 0) -+ yaffs2_checkpt_invalidate(dev); -+ -+ yaffs_trace(YAFFS_TRACE_TRACING, -+ "yaffs: yaffs_guts_initialise() done."); -+ return YAFFS_OK; -+} -+ -+void yaffs_deinitialise(struct yaffs_dev *dev) -+{ -+ if (dev->is_mounted) { -+ int i; -+ -+ yaffs_deinit_blocks(dev); -+ yaffs_deinit_tnodes_and_objs(dev); -+ yaffs_summary_deinit(dev); -+ -+ if (dev->param.n_caches > 0 && dev->cache) { -+ -+ for (i = 0; i < dev->param.n_caches; i++) { -+ kfree(dev->cache[i].data); -+ dev->cache[i].data = NULL; -+ } -+ -+ kfree(dev->cache); -+ dev->cache = NULL; -+ } -+ -+ kfree(dev->gc_cleanup_list); -+ -+ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) -+ kfree(dev->temp_buffer[i].buffer); -+ -+ dev->is_mounted = 0; -+ -+ yaffs_deinit_nand(dev); -+ } -+} -+ -+int yaffs_count_free_chunks(struct yaffs_dev *dev) -+{ -+ int n_free = 0; -+ int b; -+ struct yaffs_block_info *blk; -+ -+ blk = dev->block_info; -+ for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { -+ switch (blk->block_state) { -+ case YAFFS_BLOCK_STATE_EMPTY: -+ case YAFFS_BLOCK_STATE_ALLOCATING: -+ case YAFFS_BLOCK_STATE_COLLECTING: -+ case YAFFS_BLOCK_STATE_FULL: -+ n_free += -+ (dev->param.chunks_per_block - blk->pages_in_use + -+ blk->soft_del_pages); -+ break; -+ default: -+ break; -+ } -+ blk++; -+ } -+ return n_free; -+} -+ -+int yaffs_get_n_free_chunks(struct yaffs_dev *dev) -+{ -+ /* This is what we report to the outside world */ -+ int n_free; -+ int n_dirty_caches; -+ int blocks_for_checkpt; -+ int i; -+ -+ n_free = dev->n_free_chunks; -+ n_free += dev->n_deleted_files; -+ -+ /* Now count and subtract the number of dirty chunks in the cache. */ -+ -+ for (n_dirty_caches = 0, i = 0; i < dev->param.n_caches; i++) { -+ if (dev->cache[i].dirty) -+ n_dirty_caches++; -+ } -+ -+ n_free -= n_dirty_caches; -+ -+ n_free -= -+ ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block); -+ -+ /* Now figure checkpoint space and report that... */ -+ blocks_for_checkpt = yaffs_calc_checkpt_blocks_required(dev); -+ -+ n_free -= (blocks_for_checkpt * dev->param.chunks_per_block); -+ -+ if (n_free < 0) -+ n_free = 0; -+ -+ return n_free; -+} -+ -+ -+ -+/* -+ * Marshalling functions to get loff_t file sizes into and out of -+ * object headers. -+ */ -+void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize) -+{ -+ oh->file_size_low = (fsize & 0xFFFFFFFF); -+ oh->file_size_high = ((fsize >> 32) & 0xFFFFFFFF); -+} -+ -+loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh) -+{ -+ loff_t retval; -+ -+ if (sizeof(loff_t) >= 8 && ~(oh->file_size_high)) -+ retval = (((loff_t) oh->file_size_high) << 32) | -+ (((loff_t) oh->file_size_low) & 0xFFFFFFFF); -+ else -+ retval = (loff_t) oh->file_size_low; -+ -+ return retval; -+} -+ -+ -+void yaffs_count_blocks_by_state(struct yaffs_dev *dev, int bs[10]) -+{ -+ int i; -+ struct yaffs_block_info *bi; -+ int s; -+ -+ for(i = 0; i < 10; i++) -+ bs[i] = 0; -+ -+ for(i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ bi = yaffs_get_block_info(dev, i); -+ s = bi->block_state; -+ if(s > YAFFS_BLOCK_STATE_DEAD || s < YAFFS_BLOCK_STATE_UNKNOWN) -+ bs[0]++; -+ else -+ bs[s]++; -+ } -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.h linux-3.15-rc5/fs/yaffs2/yaffs_guts.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_guts.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,1007 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_GUTS_H__ -+#define __YAFFS_GUTS_H__ -+ -+#include "yportenv.h" -+ -+#define YAFFS_OK 1 -+#define YAFFS_FAIL 0 -+ -+/* Give us a Y=0x59, -+ * Give us an A=0x41, -+ * Give us an FF=0xff -+ * Give us an S=0x53 -+ * And what have we got... -+ */ -+#define YAFFS_MAGIC 0x5941ff53 -+ -+/* -+ * Tnodes form a tree with the tnodes in "levels" -+ * Levels greater than 0 hold 8 slots which point to other tnodes. -+ * Those at level 0 hold 16 slots which point to chunks in NAND. -+ * -+ * A maximum level of 8 thust supports files of size up to: -+ * -+ * 2^(3*MAX_LEVEL+4) -+ * -+ * Thus a max level of 8 supports files with up to 2^^28 chunks which gives -+ * a maximum file size of around 512Gbytees with 2k chunks. -+ */ -+#define YAFFS_NTNODES_LEVEL0 16 -+#define YAFFS_TNODES_LEVEL0_BITS 4 -+#define YAFFS_TNODES_LEVEL0_MASK 0xf -+ -+#define YAFFS_NTNODES_INTERNAL (YAFFS_NTNODES_LEVEL0 / 2) -+#define YAFFS_TNODES_INTERNAL_BITS (YAFFS_TNODES_LEVEL0_BITS - 1) -+#define YAFFS_TNODES_INTERNAL_MASK 0x7 -+#define YAFFS_TNODES_MAX_LEVEL 8 -+#define YAFFS_TNODES_MAX_BITS (YAFFS_TNODES_LEVEL0_BITS + \ -+ YAFFS_TNODES_INTERNAL_BITS * \ -+ YAFFS_TNODES_MAX_LEVEL) -+#define YAFFS_MAX_CHUNK_ID ((1 << YAFFS_TNODES_MAX_BITS) - 1) -+ -+#define YAFFS_MAX_FILE_SIZE_32 0x7fffffff -+ -+/* Constants for YAFFS1 mode */ -+#define YAFFS_BYTES_PER_SPARE 16 -+#define YAFFS_BYTES_PER_CHUNK 512 -+#define YAFFS_CHUNK_SIZE_SHIFT 9 -+#define YAFFS_CHUNKS_PER_BLOCK 32 -+#define YAFFS_BYTES_PER_BLOCK (YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK) -+ -+#define YAFFS_MIN_YAFFS2_CHUNK_SIZE 1024 -+#define YAFFS_MIN_YAFFS2_SPARE_SIZE 32 -+ -+ -+ -+#define YAFFS_ALLOCATION_NOBJECTS 100 -+#define YAFFS_ALLOCATION_NTNODES 100 -+#define YAFFS_ALLOCATION_NLINKS 100 -+ -+#define YAFFS_NOBJECT_BUCKETS 256 -+ -+#define YAFFS_OBJECT_SPACE 0x40000 -+#define YAFFS_MAX_OBJECT_ID (YAFFS_OBJECT_SPACE - 1) -+ -+/* Binary data version stamps */ -+#define YAFFS_SUMMARY_VERSION 1 -+#define YAFFS_CHECKPOINT_VERSION 7 -+ -+#ifdef CONFIG_YAFFS_UNICODE -+#define YAFFS_MAX_NAME_LENGTH 127 -+#define YAFFS_MAX_ALIAS_LENGTH 79 -+#else -+#define YAFFS_MAX_NAME_LENGTH 255 -+#define YAFFS_MAX_ALIAS_LENGTH 159 -+#endif -+ -+#define YAFFS_SHORT_NAME_LENGTH 15 -+ -+/* Some special object ids for pseudo objects */ -+#define YAFFS_OBJECTID_ROOT 1 -+#define YAFFS_OBJECTID_LOSTNFOUND 2 -+#define YAFFS_OBJECTID_UNLINKED 3 -+#define YAFFS_OBJECTID_DELETED 4 -+ -+/* Fake object Id for summary data */ -+#define YAFFS_OBJECTID_SUMMARY 0x10 -+ -+/* Pseudo object ids for checkpointing */ -+#define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 -+#define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 -+ -+#define YAFFS_MAX_SHORT_OP_CACHES 20 -+ -+#define YAFFS_N_TEMP_BUFFERS 6 -+ -+/* We limit the number attempts at sucessfully saving a chunk of data. -+ * Small-page devices have 32 pages per block; large-page devices have 64. -+ * Default to something in the order of 5 to 10 blocks worth of chunks. -+ */ -+#define YAFFS_WR_ATTEMPTS (5*64) -+ -+/* Sequence numbers are used in YAFFS2 to determine block allocation order. -+ * The range is limited slightly to help distinguish bad numbers from good. -+ * This also allows us to perhaps in the future use special numbers for -+ * special purposes. -+ * EFFFFF00 allows the allocation of 8 blocks/second (~1Mbytes) for 15 years, -+ * and is a larger number than the lifetime of a 2GB device. -+ */ -+#define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 -+#define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xefffff00 -+ -+/* Special sequence number for bad block that failed to be marked bad */ -+#define YAFFS_SEQUENCE_BAD_BLOCK 0xffff0000 -+ -+/* ChunkCache is used for short read/write operations.*/ -+struct yaffs_cache { -+ struct yaffs_obj *object; -+ int chunk_id; -+ int last_use; -+ int dirty; -+ int n_bytes; /* Only valid if the cache is dirty */ -+ int locked; /* Can't push out or flush while locked. */ -+ u8 *data; -+}; -+ -+/* yaffs1 tags structures in RAM -+ * NB This uses bitfield. Bitfields should not straddle a u32 boundary -+ * otherwise the structure size will get blown out. -+ */ -+ -+struct yaffs_tags { -+ u32 chunk_id:20; -+ u32 serial_number:2; -+ u32 n_bytes_lsb:10; -+ u32 obj_id:18; -+ u32 ecc:12; -+ u32 n_bytes_msb:2; -+}; -+ -+union yaffs_tags_union { -+ struct yaffs_tags as_tags; -+ u8 as_bytes[8]; -+}; -+ -+ -+/* Stuff used for extended tags in YAFFS2 */ -+ -+enum yaffs_ecc_result { -+ YAFFS_ECC_RESULT_UNKNOWN, -+ YAFFS_ECC_RESULT_NO_ERROR, -+ YAFFS_ECC_RESULT_FIXED, -+ YAFFS_ECC_RESULT_UNFIXED -+}; -+ -+enum yaffs_obj_type { -+ YAFFS_OBJECT_TYPE_UNKNOWN, -+ YAFFS_OBJECT_TYPE_FILE, -+ YAFFS_OBJECT_TYPE_SYMLINK, -+ YAFFS_OBJECT_TYPE_DIRECTORY, -+ YAFFS_OBJECT_TYPE_HARDLINK, -+ YAFFS_OBJECT_TYPE_SPECIAL -+}; -+ -+#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL -+ -+struct yaffs_ext_tags { -+ unsigned chunk_used; /* Status of the chunk: used or unused */ -+ unsigned obj_id; /* If 0 this is not used */ -+ unsigned chunk_id; /* If 0 this is a header, else a data chunk */ -+ unsigned n_bytes; /* Only valid for data chunks */ -+ -+ /* The following stuff only has meaning when we read */ -+ enum yaffs_ecc_result ecc_result; -+ unsigned block_bad; -+ -+ /* YAFFS 1 stuff */ -+ unsigned is_deleted; /* The chunk is marked deleted */ -+ unsigned serial_number; /* Yaffs1 2-bit serial number */ -+ -+ /* YAFFS2 stuff */ -+ unsigned seq_number; /* The sequence number of this block */ -+ -+ /* Extra info if this is an object header (YAFFS2 only) */ -+ -+ unsigned extra_available; /* Extra info available if not zero */ -+ unsigned extra_parent_id; /* The parent object */ -+ unsigned extra_is_shrink; /* Is it a shrink header? */ -+ unsigned extra_shadows; /* Does this shadow another object? */ -+ -+ enum yaffs_obj_type extra_obj_type; /* What object type? */ -+ -+ loff_t extra_file_size; /* Length if it is a file */ -+ unsigned extra_equiv_id; /* Equivalent object for a hard link */ -+}; -+ -+/* Spare structure for YAFFS1 */ -+struct yaffs_spare { -+ u8 tb0; -+ u8 tb1; -+ u8 tb2; -+ u8 tb3; -+ u8 page_status; /* set to 0 to delete the chunk */ -+ u8 block_status; -+ u8 tb4; -+ u8 tb5; -+ u8 ecc1[3]; -+ u8 tb6; -+ u8 tb7; -+ u8 ecc2[3]; -+}; -+ -+/*Special structure for passing through to mtd */ -+struct yaffs_nand_spare { -+ struct yaffs_spare spare; -+ int eccres1; -+ int eccres2; -+}; -+ -+/* Block data in RAM */ -+ -+enum yaffs_block_state { -+ YAFFS_BLOCK_STATE_UNKNOWN = 0, -+ -+ YAFFS_BLOCK_STATE_SCANNING, -+ /* Being scanned */ -+ -+ YAFFS_BLOCK_STATE_NEEDS_SCAN, -+ /* The block might have something on it (ie it is allocating or full, -+ * perhaps empty) but it needs to be scanned to determine its true -+ * state. -+ * This state is only valid during scanning. -+ * NB We tolerate empty because the pre-scanner might be incapable of -+ * deciding -+ * However, if this state is returned on a YAFFS2 device, -+ * then we expect a sequence number -+ */ -+ -+ YAFFS_BLOCK_STATE_EMPTY, -+ /* This block is empty */ -+ -+ YAFFS_BLOCK_STATE_ALLOCATING, -+ /* This block is partially allocated. -+ * At least one page holds valid data. -+ * This is the one currently being used for page -+ * allocation. Should never be more than one of these. -+ * If a block is only partially allocated at mount it is treated as -+ * full. -+ */ -+ -+ YAFFS_BLOCK_STATE_FULL, -+ /* All the pages in this block have been allocated. -+ * If a block was only partially allocated when mounted we treat -+ * it as fully allocated. -+ */ -+ -+ YAFFS_BLOCK_STATE_DIRTY, -+ /* The block was full and now all chunks have been deleted. -+ * Erase me, reuse me. -+ */ -+ -+ YAFFS_BLOCK_STATE_CHECKPOINT, -+ /* This block is assigned to holding checkpoint data. */ -+ -+ YAFFS_BLOCK_STATE_COLLECTING, -+ /* This block is being garbage collected */ -+ -+ YAFFS_BLOCK_STATE_DEAD -+ /* This block has failed and is not in use */ -+}; -+ -+#define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) -+ -+struct yaffs_block_info { -+ -+ s32 soft_del_pages:10; /* number of soft deleted pages */ -+ s32 pages_in_use:10; /* number of pages in use */ -+ u32 block_state:4; /* One of the above block states. */ -+ /* NB use unsigned because enum is sometimes -+ * an int */ -+ u32 needs_retiring:1; /* Data has failed on this block, */ -+ /*need to get valid data off and retire*/ -+ u32 skip_erased_check:1;/* Skip the erased check on this block */ -+ u32 gc_prioritise:1; /* An ECC check or blank check has failed. -+ Block should be prioritised for GC */ -+ u32 chunk_error_strikes:3; /* How many times we've had ecc etc -+ failures on this block and tried to reuse it */ -+ u32 has_summary:1; /* The block has a summary */ -+ -+ u32 has_shrink_hdr:1; /* This block has at least one shrink header */ -+ u32 seq_number; /* block sequence number for yaffs2 */ -+ -+}; -+ -+/* -------------------------- Object structure -------------------------------*/ -+/* This is the object structure as stored on NAND */ -+ -+struct yaffs_obj_hdr { -+ enum yaffs_obj_type type; -+ -+ /* Apply to everything */ -+ int parent_obj_id; -+ u16 sum_no_longer_used; /* checksum of name. No longer used */ -+ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; -+ -+ /* The following apply to all object types except for hard links */ -+ u32 yst_mode; /* protection */ -+ -+ u32 yst_uid; -+ u32 yst_gid; -+ u32 yst_atime; -+ u32 yst_mtime; -+ u32 yst_ctime; -+ -+ /* File size applies to files only */ -+ u32 file_size_low; -+ -+ /* Equivalent object id applies to hard links only. */ -+ int equiv_id; -+ -+ /* Alias is for symlinks only. */ -+ YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; -+ -+ u32 yst_rdev; /* stuff for block and char devices (major/min) */ -+ -+ u32 win_ctime[2]; -+ u32 win_atime[2]; -+ u32 win_mtime[2]; -+ -+ u32 inband_shadowed_obj_id; -+ u32 inband_is_shrink; -+ -+ u32 file_size_high; -+ u32 reserved[1]; -+ int shadows_obj; /* This object header shadows the -+ specified object if > 0 */ -+ -+ /* is_shrink applies to object headers written when wemake a hole. */ -+ u32 is_shrink; -+ -+}; -+ -+/*--------------------------- Tnode -------------------------- */ -+ -+struct yaffs_tnode { -+ struct yaffs_tnode *internal[YAFFS_NTNODES_INTERNAL]; -+}; -+ -+/*------------------------ Object -----------------------------*/ -+/* An object can be one of: -+ * - a directory (no data, has children links -+ * - a regular file (data.... not prunes :->). -+ * - a symlink [symbolic link] (the alias). -+ * - a hard link -+ */ -+ -+struct yaffs_file_var { -+ loff_t file_size; -+ loff_t scanned_size; -+ loff_t shrink_size; -+ int top_level; -+ struct yaffs_tnode *top; -+}; -+ -+struct yaffs_dir_var { -+ struct list_head children; /* list of child links */ -+ struct list_head dirty; /* Entry for list of dirty directories */ -+}; -+ -+struct yaffs_symlink_var { -+ YCHAR *alias; -+}; -+ -+struct yaffs_hardlink_var { -+ struct yaffs_obj *equiv_obj; -+ u32 equiv_id; -+}; -+ -+union yaffs_obj_var { -+ struct yaffs_file_var file_variant; -+ struct yaffs_dir_var dir_variant; -+ struct yaffs_symlink_var symlink_variant; -+ struct yaffs_hardlink_var hardlink_variant; -+}; -+ -+struct yaffs_obj { -+ u8 deleted:1; /* This should only apply to unlinked files. */ -+ u8 soft_del:1; /* it has also been soft deleted */ -+ u8 unlinked:1; /* An unlinked file.*/ -+ u8 fake:1; /* A fake object has no presence on NAND. */ -+ u8 rename_allowed:1; /* Some objects cannot be renamed. */ -+ u8 unlink_allowed:1; -+ u8 dirty:1; /* the object needs to be written to flash */ -+ u8 valid:1; /* When the file system is being loaded up, this -+ * object might be created before the data -+ * is available -+ * ie. file data chunks encountered before -+ * the header. -+ */ -+ u8 lazy_loaded:1; /* This object has been lazy loaded and -+ * is missing some detail */ -+ -+ u8 defered_free:1; /* Object is removed from NAND, but is -+ * still in the inode cache. -+ * Free of object is defered. -+ * until the inode is released. -+ */ -+ u8 being_created:1; /* This object is still being created -+ * so skip some verification checks. */ -+ u8 is_shadowed:1; /* This object is shadowed on the way -+ * to being renamed. */ -+ -+ u8 xattr_known:1; /* We know if this has object has xattribs -+ * or not. */ -+ u8 has_xattr:1; /* This object has xattribs. -+ * Only valid if xattr_known. */ -+ -+ u8 serial; /* serial number of chunk in NAND.*/ -+ u16 sum; /* sum of the name to speed searching */ -+ -+ struct yaffs_dev *my_dev; /* The device I'm on */ -+ -+ struct list_head hash_link; /* list of objects in hash bucket */ -+ -+ struct list_head hard_links; /* hard linked object chain*/ -+ -+ /* directory structure stuff */ -+ /* also used for linking up the free list */ -+ struct yaffs_obj *parent; -+ struct list_head siblings; -+ -+ /* Where's my object header in NAND? */ -+ int hdr_chunk; -+ -+ int n_data_chunks; /* Number of data chunks for this file. */ -+ -+ u32 obj_id; /* the object id value */ -+ -+ u32 yst_mode; -+ -+ YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1]; -+ -+#ifdef CONFIG_YAFFS_WINCE -+ u32 win_ctime[2]; -+ u32 win_mtime[2]; -+ u32 win_atime[2]; -+#else -+ u32 yst_uid; -+ u32 yst_gid; -+ u32 yst_atime; -+ u32 yst_mtime; -+ u32 yst_ctime; -+#endif -+ -+ u32 yst_rdev; -+ -+ void *my_inode; -+ -+ enum yaffs_obj_type variant_type; -+ -+ union yaffs_obj_var variant; -+ -+}; -+ -+struct yaffs_obj_bucket { -+ struct list_head list; -+ int count; -+}; -+ -+/* yaffs_checkpt_obj holds the definition of an object as dumped -+ * by checkpointing. -+ */ -+ -+struct yaffs_checkpt_obj { -+ int struct_type; -+ u32 obj_id; -+ u32 parent_id; -+ int hdr_chunk; -+ enum yaffs_obj_type variant_type:3; -+ u8 deleted:1; -+ u8 soft_del:1; -+ u8 unlinked:1; -+ u8 fake:1; -+ u8 rename_allowed:1; -+ u8 unlink_allowed:1; -+ u8 serial; -+ int n_data_chunks; -+ loff_t size_or_equiv_obj; -+}; -+ -+/*--------------------- Temporary buffers ---------------- -+ * -+ * These are chunk-sized working buffers. Each device has a few. -+ */ -+ -+struct yaffs_buffer { -+ u8 *buffer; -+ int in_use; -+}; -+ -+/*----------------- Device ---------------------------------*/ -+ -+struct yaffs_param { -+ const YCHAR *name; -+ -+ /* -+ * Entry parameters set up way early. Yaffs sets up the rest. -+ * The structure should be zeroed out before use so that unused -+ * and default values are zero. -+ */ -+ -+ int inband_tags; /* Use unband tags */ -+ u32 total_bytes_per_chunk; /* Should be >= 512, does not need to -+ be a power of 2 */ -+ int chunks_per_block; /* does not need to be a power of 2 */ -+ int spare_bytes_per_chunk; /* spare area size */ -+ int start_block; /* Start block we're allowed to use */ -+ int end_block; /* End block we're allowed to use */ -+ int n_reserved_blocks; /* Tuneable so that we can reduce -+ * reserved blocks on NOR and RAM. */ -+ -+ int n_caches; /* If <= 0, then short op caching is disabled, -+ * else the number of short op caches. -+ */ -+ int cache_bypass_aligned; /* If non-zero then bypass the cache for -+ * aligned writes. -+ */ -+ -+ int use_nand_ecc; /* Flag to decide whether or not to use -+ * NAND driver ECC on data (yaffs1) */ -+ int tags_9bytes; /* Use 9 byte tags */ -+ int no_tags_ecc; /* Flag to decide whether or not to do ECC -+ * on packed tags (yaffs2) */ -+ -+ int is_yaffs2; /* Use yaffs2 mode on this device */ -+ -+ int empty_lost_n_found; /* Auto-empty lost+found directory on mount */ -+ -+ int refresh_period; /* How often to check for a block refresh */ -+ -+ /* Checkpoint control. Can be set before or after initialisation */ -+ u8 skip_checkpt_rd; -+ u8 skip_checkpt_wr; -+ -+ int enable_xattr; /* Enable xattribs */ -+ -+ int max_objects; /* -+ * Set to limit the number of objects created. -+ * 0 = no limit. -+ */ -+ -+ /* The remove_obj_fn function must be supplied by OS flavours that -+ * need it. -+ * yaffs direct uses it to implement the faster readdir. -+ * Linux uses it to protect the directory during unlocking. -+ */ -+ void (*remove_obj_fn) (struct yaffs_obj *obj); -+ -+ /* Callback to mark the superblock dirty */ -+ void (*sb_dirty_fn) (struct yaffs_dev *dev); -+ -+ /* Callback to control garbage collection. */ -+ unsigned (*gc_control_fn) (struct yaffs_dev *dev); -+ -+ /* Debug control flags. Don't use unless you know what you're doing */ -+ int use_header_file_size; /* Flag to determine if we should use -+ * file sizes from the header */ -+ int disable_lazy_load; /* Disable lazy loading on this device */ -+ int wide_tnodes_disabled; /* Set to disable wide tnodes */ -+ int disable_soft_del; /* yaffs 1 only: Set to disable the use of -+ * softdeletion. */ -+ -+ int defered_dir_update; /* Set to defer directory updates */ -+ -+#ifdef CONFIG_YAFFS_AUTO_UNICODE -+ int auto_unicode; -+#endif -+ int always_check_erased; /* Force chunk erased check always on */ -+ -+ int disable_summary; -+ int disable_bad_block_marking; -+ -+}; -+ -+struct yaffs_driver { -+ int (*drv_write_chunk_fn) (struct yaffs_dev *dev, int nand_chunk, -+ const u8 *data, int data_len, -+ const u8 *oob, int oob_len); -+ int (*drv_read_chunk_fn) (struct yaffs_dev *dev, int nand_chunk, -+ u8 *data, int data_len, -+ u8 *oob, int oob_len, -+ enum yaffs_ecc_result *ecc_result); -+ int (*drv_erase_fn) (struct yaffs_dev *dev, int block_no); -+ int (*drv_mark_bad_fn) (struct yaffs_dev *dev, int block_no); -+ int (*drv_check_bad_fn) (struct yaffs_dev *dev, int block_no); -+ int (*drv_initialise_fn) (struct yaffs_dev *dev); -+ int (*drv_deinitialise_fn) (struct yaffs_dev *dev); -+}; -+ -+struct yaffs_tags_handler { -+ int (*write_chunk_tags_fn) (struct yaffs_dev *dev, -+ int nand_chunk, const u8 *data, -+ const struct yaffs_ext_tags *tags); -+ int (*read_chunk_tags_fn) (struct yaffs_dev *dev, -+ int nand_chunk, u8 *data, -+ struct yaffs_ext_tags *tags); -+ -+ int (*query_block_fn) (struct yaffs_dev *dev, int block_no, -+ enum yaffs_block_state *state, -+ u32 *seq_number); -+ int (*mark_bad_fn) (struct yaffs_dev *dev, int block_no); -+}; -+ -+struct yaffs_dev { -+ struct yaffs_param param; -+ struct yaffs_driver drv; -+ struct yaffs_tags_handler tagger; -+ -+ /* Context storage. Holds extra OS specific data for this device */ -+ -+ void *os_context; -+ void *driver_context; -+ -+ struct list_head dev_list; -+ -+ int ll_init; -+ /* Runtime parameters. Set up by YAFFS. */ -+ int data_bytes_per_chunk; -+ -+ /* Non-wide tnode stuff */ -+ u16 chunk_grp_bits; /* Number of bits that need to be resolved if -+ * the tnodes are not wide enough. -+ */ -+ u16 chunk_grp_size; /* == 2^^chunk_grp_bits */ -+ -+ /* Stuff to support wide tnodes */ -+ u32 tnode_width; -+ u32 tnode_mask; -+ u32 tnode_size; -+ -+ /* Stuff for figuring out file offset to chunk conversions */ -+ u32 chunk_shift; /* Shift value */ -+ u32 chunk_div; /* Divisor after shifting: 1 for 2^n sizes */ -+ u32 chunk_mask; /* Mask to use for power-of-2 case */ -+ -+ int is_mounted; -+ int read_only; -+ int is_checkpointed; -+ -+ /* Stuff to support block offsetting to support start block zero */ -+ int internal_start_block; -+ int internal_end_block; -+ int block_offset; -+ int chunk_offset; -+ -+ /* Runtime checkpointing stuff */ -+ int checkpt_page_seq; /* running sequence number of checkpt pages */ -+ int checkpt_byte_count; -+ int checkpt_byte_offs; -+ u8 *checkpt_buffer; -+ int checkpt_open_write; -+ int blocks_in_checkpt; -+ int checkpt_cur_chunk; -+ int checkpt_cur_block; -+ int checkpt_next_block; -+ int *checkpt_block_list; -+ int checkpt_max_blocks; -+ u32 checkpt_sum; -+ u32 checkpt_xor; -+ -+ int checkpoint_blocks_required; /* Number of blocks needed to store -+ * current checkpoint set */ -+ -+ /* Block Info */ -+ struct yaffs_block_info *block_info; -+ u8 *chunk_bits; /* bitmap of chunks in use */ -+ u8 block_info_alt:1; /* allocated using alternative alloc */ -+ u8 chunk_bits_alt:1; /* allocated using alternative alloc */ -+ int chunk_bit_stride; /* Number of bytes of chunk_bits per block. -+ * Must be consistent with chunks_per_block. -+ */ -+ -+ int n_erased_blocks; -+ int alloc_block; /* Current block being allocated off */ -+ u32 alloc_page; -+ int alloc_block_finder; /* Used to search for next allocation block */ -+ -+ /* Object and Tnode memory management */ -+ void *allocator; -+ int n_obj; -+ int n_tnodes; -+ -+ int n_hardlinks; -+ -+ struct yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS]; -+ u32 bucket_finder; -+ -+ int n_free_chunks; -+ -+ /* Garbage collection control */ -+ u32 *gc_cleanup_list; /* objects to delete at the end of a GC. */ -+ u32 n_clean_ups; -+ -+ unsigned has_pending_prioritised_gc; /* We think this device might -+ have pending prioritised gcs */ -+ unsigned gc_disable; -+ unsigned gc_block_finder; -+ unsigned gc_dirtiest; -+ unsigned gc_pages_in_use; -+ unsigned gc_not_done; -+ unsigned gc_block; -+ unsigned gc_chunk; -+ unsigned gc_skip; -+ struct yaffs_summary_tags *gc_sum_tags; -+ -+ /* Special directories */ -+ struct yaffs_obj *root_dir; -+ struct yaffs_obj *lost_n_found; -+ -+ int buffered_block; /* Which block is buffered here? */ -+ int doing_buffered_block_rewrite; -+ -+ struct yaffs_cache *cache; -+ int cache_last_use; -+ -+ /* Stuff for background deletion and unlinked files. */ -+ struct yaffs_obj *unlinked_dir; /* Directory where unlinked and deleted -+ files live. */ -+ struct yaffs_obj *del_dir; /* Directory where deleted objects are -+ sent to disappear. */ -+ struct yaffs_obj *unlinked_deletion; /* Current file being -+ background deleted. */ -+ int n_deleted_files; /* Count of files awaiting deletion; */ -+ int n_unlinked_files; /* Count of unlinked files. */ -+ int n_bg_deletions; /* Count of background deletions. */ -+ -+ /* Temporary buffer management */ -+ struct yaffs_buffer temp_buffer[YAFFS_N_TEMP_BUFFERS]; -+ int max_temp; -+ int temp_in_use; -+ int unmanaged_buffer_allocs; -+ int unmanaged_buffer_deallocs; -+ -+ /* yaffs2 runtime stuff */ -+ unsigned seq_number; /* Sequence number of currently -+ allocating block */ -+ unsigned oldest_dirty_seq; -+ unsigned oldest_dirty_block; -+ -+ /* Block refreshing */ -+ int refresh_skip; /* A skip down counter. -+ * Refresh happens when this gets to zero. */ -+ -+ /* Dirty directory handling */ -+ struct list_head dirty_dirs; /* List of dirty directories */ -+ -+ /* Summary */ -+ int chunks_per_summary; -+ struct yaffs_summary_tags *sum_tags; -+ -+ /* Statistics */ -+ u32 n_page_writes; -+ u32 n_page_reads; -+ u32 n_erasures; -+ u32 n_bad_queries; -+ u32 n_bad_markings; -+ u32 n_erase_failures; -+ u32 n_gc_copies; -+ u32 all_gcs; -+ u32 passive_gc_count; -+ u32 oldest_dirty_gc_count; -+ u32 n_gc_blocks; -+ u32 bg_gcs; -+ u32 n_retried_writes; -+ u32 n_retired_blocks; -+ u32 n_ecc_fixed; -+ u32 n_ecc_unfixed; -+ u32 n_tags_ecc_fixed; -+ u32 n_tags_ecc_unfixed; -+ u32 n_deletions; -+ u32 n_unmarked_deletions; -+ u32 refresh_count; -+ u32 cache_hits; -+ u32 tags_used; -+ u32 summary_used; -+ -+}; -+ -+/* The CheckpointDevice structure holds the device information that changes -+ *at runtime and must be preserved over unmount/mount cycles. -+ */ -+struct yaffs_checkpt_dev { -+ int struct_type; -+ int n_erased_blocks; -+ int alloc_block; /* Current block being allocated off */ -+ u32 alloc_page; -+ int n_free_chunks; -+ -+ int n_deleted_files; /* Count of files awaiting deletion; */ -+ int n_unlinked_files; /* Count of unlinked files. */ -+ int n_bg_deletions; /* Count of background deletions. */ -+ -+ /* yaffs2 runtime stuff */ -+ unsigned seq_number; /* Sequence number of currently -+ * allocating block */ -+ -+}; -+ -+struct yaffs_checkpt_validity { -+ int struct_type; -+ u32 magic; -+ u32 version; -+ u32 head; -+}; -+ -+struct yaffs_shadow_fixer { -+ int obj_id; -+ int shadowed_id; -+ struct yaffs_shadow_fixer *next; -+}; -+ -+/* Structure for doing xattr modifications */ -+struct yaffs_xattr_mod { -+ int set; /* If 0 then this is a deletion */ -+ const YCHAR *name; -+ const void *data; -+ int size; -+ int flags; -+ int result; -+}; -+ -+/*----------------------- YAFFS Functions -----------------------*/ -+ -+int yaffs_guts_initialise(struct yaffs_dev *dev); -+void yaffs_deinitialise(struct yaffs_dev *dev); -+ -+int yaffs_get_n_free_chunks(struct yaffs_dev *dev); -+ -+int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR * old_name, -+ struct yaffs_obj *new_dir, const YCHAR * new_name); -+ -+int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR * name); -+int yaffs_del_obj(struct yaffs_obj *obj); -+struct yaffs_obj *yaffs_retype_obj(struct yaffs_obj *obj, -+ enum yaffs_obj_type type); -+ -+ -+int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR * name, int buffer_size); -+loff_t yaffs_get_obj_length(struct yaffs_obj *obj); -+int yaffs_get_obj_inode(struct yaffs_obj *obj); -+unsigned yaffs_get_obj_type(struct yaffs_obj *obj); -+int yaffs_get_obj_link_count(struct yaffs_obj *obj); -+ -+/* File operations */ -+int yaffs_file_rd(struct yaffs_obj *obj, u8 * buffer, loff_t offset, -+ int n_bytes); -+int yaffs_wr_file(struct yaffs_obj *obj, const u8 * buffer, loff_t offset, -+ int n_bytes, int write_trhrough); -+int yaffs_resize_file(struct yaffs_obj *obj, loff_t new_size); -+ -+struct yaffs_obj *yaffs_create_file(struct yaffs_obj *parent, -+ const YCHAR *name, u32 mode, u32 uid, -+ u32 gid); -+ -+int yaffs_flush_file(struct yaffs_obj *obj, int update_time, int data_sync); -+ -+/* Flushing and checkpointing */ -+void yaffs_flush_whole_cache(struct yaffs_dev *dev); -+ -+int yaffs_checkpoint_save(struct yaffs_dev *dev); -+int yaffs_checkpoint_restore(struct yaffs_dev *dev); -+ -+/* Directory operations */ -+struct yaffs_obj *yaffs_create_dir(struct yaffs_obj *parent, const YCHAR *name, -+ u32 mode, u32 uid, u32 gid); -+struct yaffs_obj *yaffs_find_by_name(struct yaffs_obj *the_dir, -+ const YCHAR *name); -+struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number); -+ -+/* Link operations */ -+struct yaffs_obj *yaffs_link_obj(struct yaffs_obj *parent, const YCHAR *name, -+ struct yaffs_obj *equiv_obj); -+ -+struct yaffs_obj *yaffs_get_equivalent_obj(struct yaffs_obj *obj); -+ -+/* Symlink operations */ -+struct yaffs_obj *yaffs_create_symlink(struct yaffs_obj *parent, -+ const YCHAR *name, u32 mode, u32 uid, -+ u32 gid, const YCHAR *alias); -+YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj); -+ -+/* Special inodes (fifos, sockets and devices) */ -+struct yaffs_obj *yaffs_create_special(struct yaffs_obj *parent, -+ const YCHAR *name, u32 mode, u32 uid, -+ u32 gid, u32 rdev); -+ -+int yaffs_set_xattrib(struct yaffs_obj *obj, const YCHAR *name, -+ const void *value, int size, int flags); -+int yaffs_get_xattrib(struct yaffs_obj *obj, const YCHAR *name, void *value, -+ int size); -+int yaffs_list_xattrib(struct yaffs_obj *obj, char *buffer, int size); -+int yaffs_remove_xattrib(struct yaffs_obj *obj, const YCHAR *name); -+ -+/* Special directories */ -+struct yaffs_obj *yaffs_root(struct yaffs_dev *dev); -+struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev); -+ -+void yaffs_handle_defered_free(struct yaffs_obj *obj); -+ -+void yaffs_update_dirty_dirs(struct yaffs_dev *dev); -+ -+int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency); -+ -+/* Debug dump */ -+int yaffs_dump_obj(struct yaffs_obj *obj); -+ -+void yaffs_guts_test(struct yaffs_dev *dev); -+int yaffs_guts_ll_init(struct yaffs_dev *dev); -+ -+ -+/* A few useful functions to be used within the core files*/ -+void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, -+ int lyn); -+int yaffs_check_ff(u8 *buffer, int n_bytes); -+void yaffs_handle_chunk_error(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi); -+ -+u8 *yaffs_get_temp_buffer(struct yaffs_dev *dev); -+void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer); -+ -+struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, -+ int number, -+ enum yaffs_obj_type type); -+int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk, -+ int nand_chunk, int in_scan); -+void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR *name); -+void yaffs_set_obj_name_from_oh(struct yaffs_obj *obj, -+ const struct yaffs_obj_hdr *oh); -+void yaffs_add_obj_to_dir(struct yaffs_obj *directory, struct yaffs_obj *obj); -+YCHAR *yaffs_clone_str(const YCHAR *str); -+void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list); -+void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no); -+int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, -+ int force, int is_shrink, int shadows, -+ struct yaffs_xattr_mod *xop); -+void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, -+ int backward_scanning); -+int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks); -+struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev); -+struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, -+ struct yaffs_file_var *file_struct, -+ u32 chunk_id, -+ struct yaffs_tnode *passed_tn); -+ -+int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset, -+ int n_bytes, int write_trhrough); -+void yaffs_resize_file_down(struct yaffs_obj *obj, loff_t new_size); -+void yaffs_skip_rest_of_block(struct yaffs_dev *dev); -+ -+int yaffs_count_free_chunks(struct yaffs_dev *dev); -+ -+struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, -+ struct yaffs_file_var *file_struct, -+ u32 chunk_id); -+ -+u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, -+ unsigned pos); -+ -+int yaffs_is_non_empty_dir(struct yaffs_obj *obj); -+ -+int yaffs_guts_format_dev(struct yaffs_dev *dev); -+ -+void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr, -+ int *chunk_out, u32 *offset_out); -+/* -+ * Marshalling functions to get loff_t file sizes into aand out of -+ * object headers. -+ */ -+void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize); -+loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh); -+loff_t yaffs_max_file_size(struct yaffs_dev *dev); -+ -+/* -+ * Debug function to count number of blocks in each state -+ * NB Needs to be called with correct number of integers -+ */ -+ -+void yaffs_count_blocks_by_state(struct yaffs_dev *dev, int bs[10]); -+ -+int yaffs_find_chunk_in_file(struct yaffs_obj *in, int inode_chunk, -+ struct yaffs_ext_tags *tags); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_linux.h linux-3.15-rc5/fs/yaffs2/yaffs_linux.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_linux.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_linux.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,48 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_LINUX_H__ -+#define __YAFFS_LINUX_H__ -+ -+#include "yportenv.h" -+ -+struct yaffs_linux_context { -+ struct list_head context_list; /* List of these we have mounted */ -+ struct yaffs_dev *dev; -+ struct super_block *super; -+ struct task_struct *bg_thread; /* Background thread for this device */ -+ int bg_running; -+ struct mutex gross_lock; /* Gross locking mutex*/ -+ u8 *spare_buffer; /* For mtdif2 use. Don't know the buffer size -+ * at compile time so we have to allocate it. -+ */ -+ struct list_head search_contexts; -+ struct task_struct *readdir_process; -+ unsigned mount_id; -+ int dirty; -+}; -+ -+#define yaffs_dev_to_lc(dev) ((struct yaffs_linux_context *)((dev)->os_context)) -+#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context)) -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+#define WRITE_SIZE_STR "writesize" -+#define WRITE_SIZE(mtd) ((mtd)->writesize) -+#else -+#define WRITE_SIZE_STR "oobblock" -+#define WRITE_SIZE(mtd) ((mtd)->oobblock) -+#endif -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.c linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,309 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yportenv.h" -+ -+#include "yaffs_mtdif.h" -+ -+#include "linux/mtd/mtd.h" -+#include "linux/types.h" -+#include "linux/time.h" -+#include "linux/major.h" -+#include "linux/mtd/nand.h" -+#include "linux/kernel.h" -+#include "linux/version.h" -+#include "linux/types.h" -+ -+#include "yaffs_trace.h" -+#include "yaffs_guts.h" -+#include "yaffs_linux.h" -+ -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)) -+#define MTD_OPS_AUTO_OOB MTD_OOB_AUTO -+#endif -+ -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)) -+#define mtd_erase(m, ei) (m)->erase(m, ei) -+#define mtd_write_oob(m, addr, pops) (m)->write_oob(m, addr, pops) -+#define mtd_read_oob(m, addr, pops) (m)->read_oob(m, addr, pops) -+#define mtd_block_isbad(m, offs) (m)->block_isbad(m, offs) -+#define mtd_block_markbad(m, offs) (m)->block_markbad(m, offs) -+#endif -+ -+ -+ -+int nandmtd_erase_block(struct yaffs_dev *dev, int block_no) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ u32 addr = -+ ((loff_t) block_no) * dev->param.total_bytes_per_chunk * -+ dev->param.chunks_per_block; -+ struct erase_info ei; -+ int retval = 0; -+ -+ ei.mtd = mtd; -+ ei.addr = addr; -+ ei.len = dev->param.total_bytes_per_chunk * dev->param.chunks_per_block; -+ ei.time = 1000; -+ ei.retries = 2; -+ ei.callback = NULL; -+ ei.priv = (u_long) dev; -+ -+ retval = mtd_erase(mtd, &ei); -+ -+ if (retval == 0) -+ return YAFFS_OK; -+ -+ return YAFFS_FAIL; -+} -+ -+ -+static int yaffs_mtd_write(struct yaffs_dev *dev, int nand_chunk, -+ const u8 *data, int data_len, -+ const u8 *oob, int oob_len) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ loff_t addr; -+ struct mtd_oob_ops ops; -+ int retval; -+ -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "yaffs_mtd_write(%p, %d, %p, %d, %p, %d)\n", -+ dev, nand_chunk, data, data_len, oob, oob_len); -+ -+ if (!data || !data_len) { -+ data = NULL; -+ data_len = 0; -+ } -+ -+ if (!oob || !oob_len) { -+ oob = NULL; -+ oob_len = 0; -+ } -+ -+ addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; -+ memset(&ops, 0, sizeof(ops)); -+ ops.mode = MTD_OPS_AUTO_OOB; -+ ops.len = (data) ? data_len : 0; -+ ops.ooblen = oob_len; -+ ops.datbuf = (u8 *)data; -+ ops.oobbuf = (u8 *)oob; -+ -+ retval = mtd_write_oob(mtd, addr, &ops); -+ if (retval) { -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "write_oob failed, chunk %d, mtd error %d", -+ nand_chunk, retval); -+ } -+ return retval ? YAFFS_FAIL : YAFFS_OK; -+} -+ -+static int yaffs_mtd_read(struct yaffs_dev *dev, int nand_chunk, -+ u8 *data, int data_len, -+ u8 *oob, int oob_len, -+ enum yaffs_ecc_result *ecc_result) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ loff_t addr; -+ struct mtd_oob_ops ops; -+ int retval; -+ -+ addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; -+ memset(&ops, 0, sizeof(ops)); -+ ops.mode = MTD_OPS_AUTO_OOB; -+ ops.len = (data) ? data_len : 0; -+ ops.ooblen = oob_len; -+ ops.datbuf = data; -+ ops.oobbuf = oob; -+ -+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20)) -+ /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; -+ * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. -+ */ -+ ops.len = (ops.datbuf) ? ops.len : ops.ooblen; -+#endif -+ /* Read page and oob using MTD. -+ * Check status and determine ECC result. -+ */ -+ retval = mtd_read_oob(mtd, addr, &ops); -+ if (retval) -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "read_oob failed, chunk %d, mtd error %d", -+ nand_chunk, retval); -+ -+ switch (retval) { -+ case 0: -+ /* no error */ -+ if(ecc_result) -+ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; -+ break; -+ -+ case -EUCLEAN: -+ /* MTD's ECC fixed the data */ -+ if(ecc_result) -+ *ecc_result = YAFFS_ECC_RESULT_FIXED; -+ dev->n_ecc_fixed++; -+ break; -+ -+ case -EBADMSG: -+ default: -+ /* MTD's ECC could not fix the data */ -+ dev->n_ecc_unfixed++; -+ if(ecc_result) -+ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; -+ return YAFFS_FAIL; -+ } -+ -+ return YAFFS_OK; -+} -+ -+static int yaffs_mtd_erase(struct yaffs_dev *dev, int block_no) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ -+ loff_t addr; -+ struct erase_info ei; -+ int retval = 0; -+ u32 block_size; -+ -+ block_size = dev->param.total_bytes_per_chunk * -+ dev->param.chunks_per_block; -+ addr = ((loff_t) block_no) * block_size; -+ -+ ei.mtd = mtd; -+ ei.addr = addr; -+ ei.len = block_size; -+ ei.time = 1000; -+ ei.retries = 2; -+ ei.callback = NULL; -+ ei.priv = (u_long) dev; -+ -+ retval = mtd_erase(mtd, &ei); -+ -+ if (retval == 0) -+ return YAFFS_OK; -+ -+ return YAFFS_FAIL; -+} -+ -+static int yaffs_mtd_mark_bad(struct yaffs_dev *dev, int block_no) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ int blocksize = dev->param.chunks_per_block * dev->param.total_bytes_per_chunk; -+ int retval; -+ -+ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", block_no); -+ -+ retval = mtd_block_markbad(mtd, (loff_t) blocksize * block_no); -+ return (retval) ? YAFFS_FAIL : YAFFS_OK; -+} -+ -+static int yaffs_mtd_check_bad(struct yaffs_dev *dev, int block_no) -+{ -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ int blocksize = dev->param.chunks_per_block * dev->param.total_bytes_per_chunk; -+ int retval; -+ -+ yaffs_trace(YAFFS_TRACE_MTD, "checking block %d bad", block_no); -+ -+ retval = mtd_block_isbad(mtd, (loff_t) blocksize * block_no); -+ return (retval) ? YAFFS_FAIL : YAFFS_OK; -+} -+ -+static int yaffs_mtd_initialise(struct yaffs_dev *dev) -+{ -+ return YAFFS_OK; -+} -+ -+static int yaffs_mtd_deinitialise(struct yaffs_dev *dev) -+{ -+ return YAFFS_OK; -+} -+ -+ -+void yaffs_mtd_drv_install(struct yaffs_dev *dev) -+{ -+ struct yaffs_driver *drv = &dev->drv; -+ -+ drv->drv_write_chunk_fn = yaffs_mtd_write; -+ drv->drv_read_chunk_fn = yaffs_mtd_read; -+ drv->drv_erase_fn = yaffs_mtd_erase; -+ drv->drv_mark_bad_fn = yaffs_mtd_mark_bad; -+ drv->drv_check_bad_fn = yaffs_mtd_check_bad; -+ drv->drv_initialise_fn = yaffs_mtd_initialise; -+ drv->drv_deinitialise_fn = yaffs_mtd_deinitialise; -+} -+ -+ -+struct mtd_info * yaffs_get_mtd_device(dev_t sdev) -+{ -+ struct mtd_info *mtd; -+ -+ mtd = yaffs_get_mtd_device(sdev); -+ -+ /* Check it's an mtd device..... */ -+ if (MAJOR(sdev) != MTD_BLOCK_MAJOR) -+ return NULL; /* This isn't an mtd device */ -+ -+ /* Check it's NAND */ -+ if (mtd->type != MTD_NANDFLASH) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: MTD device is not NAND it's type %d", -+ mtd->type); -+ return NULL; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_OS, " %s %d", WRITE_SIZE_STR, WRITE_SIZE(mtd)); -+ yaffs_trace(YAFFS_TRACE_OS, " oobsize %d", mtd->oobsize); -+ yaffs_trace(YAFFS_TRACE_OS, " erasesize %d", mtd->erasesize); -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -+ yaffs_trace(YAFFS_TRACE_OS, " size %u", mtd->size); -+#else -+ yaffs_trace(YAFFS_TRACE_OS, " size %lld", mtd->size); -+#endif -+ -+ return mtd; -+} -+ -+int yaffs_verify_mtd(struct mtd_info *mtd, int yaffs_version, int inband_tags) -+{ -+ if (yaffs_version == 2) { -+ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -+ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && -+ !inband_tags) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "MTD device does not have the right page sizes" -+ ); -+ return -1; -+ } -+ } else { -+ if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || -+ mtd->oobsize != YAFFS_BYTES_PER_SPARE) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "MTD device does not support have the right page sizes" -+ ); -+ return -1; -+ } -+ } -+ -+ return 0; -+} -+ -+ -+void yaffs_put_mtd_device(struct mtd_info *mtd) -+{ -+ if(mtd) -+ put_mtd_device(mtd); -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.h linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,25 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_MTDIF_H__ -+#define __YAFFS_MTDIF_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_mtd_drv_install(struct yaffs_dev *dev); -+struct mtd_info * yaffs_get_mtd_device(dev_t sdev); -+void yaffs_put_mtd_device(struct mtd_info *mtd); -+int yaffs_verify_mtd(struct mtd_info *mtd, int yaffs_version, int inband_tags); -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.c linux-3.15-rc5/fs/yaffs2/yaffs_nameval.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_nameval.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,208 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * This simple implementation of a name-value store assumes a small number of -+* values and fits into a small finite buffer. -+ * -+ * Each attribute is stored as a record: -+ * sizeof(int) bytes record size. -+ * strnlen+1 bytes name null terminated. -+ * nbytes value. -+ * ---------- -+ * total size stored in record size -+ * -+ * This code has not been tested with unicode yet. -+ */ -+ -+#include "yaffs_nameval.h" -+ -+#include "yportenv.h" -+ -+static int nval_find(const char *xb, int xb_size, const YCHAR *name, -+ int *exist_size) -+{ -+ int pos = 0; -+ int size; -+ -+ memcpy(&size, xb, sizeof(int)); -+ while (size > 0 && (size < xb_size) && (pos + size < xb_size)) { -+ if (!strncmp((YCHAR *) (xb + pos + sizeof(int)), -+ name, size)) { -+ if (exist_size) -+ *exist_size = size; -+ return pos; -+ } -+ pos += size; -+ if (pos < xb_size - sizeof(int)) -+ memcpy(&size, xb + pos, sizeof(int)); -+ else -+ size = 0; -+ } -+ if (exist_size) -+ *exist_size = 0; -+ return -ENODATA; -+} -+ -+static int nval_used(const char *xb, int xb_size) -+{ -+ int pos = 0; -+ int size; -+ -+ memcpy(&size, xb + pos, sizeof(int)); -+ while (size > 0 && (size < xb_size) && (pos + size < xb_size)) { -+ pos += size; -+ if (pos < xb_size - sizeof(int)) -+ memcpy(&size, xb + pos, sizeof(int)); -+ else -+ size = 0; -+ } -+ return pos; -+} -+ -+int nval_del(char *xb, int xb_size, const YCHAR *name) -+{ -+ int pos = nval_find(xb, xb_size, name, NULL); -+ int size; -+ -+ if (pos < 0 || pos >= xb_size) -+ return -ENODATA; -+ -+ /* Find size, shift rest over this record, -+ * then zero out the rest of buffer */ -+ memcpy(&size, xb + pos, sizeof(int)); -+ memcpy(xb + pos, xb + pos + size, xb_size - (pos + size)); -+ memset(xb + (xb_size - size), 0, size); -+ return 0; -+} -+ -+int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, -+ int bsize, int flags) -+{ -+ int pos; -+ int namelen = strnlen(name, xb_size); -+ int reclen; -+ int size_exist = 0; -+ int space; -+ int start; -+ -+ pos = nval_find(xb, xb_size, name, &size_exist); -+ -+ if (flags & XATTR_CREATE && pos >= 0) -+ return -EEXIST; -+ if (flags & XATTR_REPLACE && pos < 0) -+ return -ENODATA; -+ -+ start = nval_used(xb, xb_size); -+ space = xb_size - start + size_exist; -+ -+ reclen = (sizeof(int) + namelen + 1 + bsize); -+ -+ if (reclen > space) -+ return -ENOSPC; -+ -+ if (pos >= 0) { -+ nval_del(xb, xb_size, name); -+ start = nval_used(xb, xb_size); -+ } -+ -+ pos = start; -+ -+ memcpy(xb + pos, &reclen, sizeof(int)); -+ pos += sizeof(int); -+ strncpy((YCHAR *) (xb + pos), name, reclen); -+ pos += (namelen + 1); -+ memcpy(xb + pos, buf, bsize); -+ return 0; -+} -+ -+int nval_get(const char *xb, int xb_size, const YCHAR * name, char *buf, -+ int bsize) -+{ -+ int pos = nval_find(xb, xb_size, name, NULL); -+ int size; -+ -+ if (pos >= 0 && pos < xb_size) { -+ -+ memcpy(&size, xb + pos, sizeof(int)); -+ pos += sizeof(int); /* advance past record length */ -+ size -= sizeof(int); -+ -+ /* Advance over name string */ -+ while (xb[pos] && size > 0 && pos < xb_size) { -+ pos++; -+ size--; -+ } -+ /*Advance over NUL */ -+ pos++; -+ size--; -+ -+ /* If bsize is zero then this is a size query. -+ * Return the size, but don't copy. -+ */ -+ if (!bsize) -+ return size; -+ -+ if (size <= bsize) { -+ memcpy(buf, xb + pos, size); -+ return size; -+ } -+ } -+ if (pos >= 0) -+ return -ERANGE; -+ -+ return -ENODATA; -+} -+ -+int nval_list(const char *xb, int xb_size, char *buf, int bsize) -+{ -+ int pos = 0; -+ int size; -+ int name_len; -+ int ncopied = 0; -+ int filled = 0; -+ -+ memcpy(&size, xb + pos, sizeof(int)); -+ while (size > sizeof(int) && -+ size <= xb_size && -+ (pos + size) < xb_size && -+ !filled) { -+ pos += sizeof(int); -+ size -= sizeof(int); -+ name_len = strnlen((YCHAR *) (xb + pos), size); -+ if (ncopied + name_len + 1 < bsize) { -+ memcpy(buf, xb + pos, name_len * sizeof(YCHAR)); -+ buf += name_len; -+ *buf = '\0'; -+ buf++; -+ if (sizeof(YCHAR) > 1) { -+ *buf = '\0'; -+ buf++; -+ } -+ ncopied += (name_len + 1); -+ } else { -+ filled = 1; -+ } -+ pos += size; -+ if (pos < xb_size - sizeof(int)) -+ memcpy(&size, xb + pos, sizeof(int)); -+ else -+ size = 0; -+ } -+ return ncopied; -+} -+ -+int nval_hasvalues(const char *xb, int xb_size) -+{ -+ return nval_used(xb, xb_size) > 0; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.h linux-3.15-rc5/fs/yaffs2/yaffs_nameval.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_nameval.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,28 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __NAMEVAL_H__ -+#define __NAMEVAL_H__ -+ -+#include "yportenv.h" -+ -+int nval_del(char *xb, int xb_size, const YCHAR * name); -+int nval_set(char *xb, int xb_size, const YCHAR * name, const char *buf, -+ int bsize, int flags); -+int nval_get(const char *xb, int xb_size, const YCHAR * name, char *buf, -+ int bsize); -+int nval_list(const char *xb, int xb_size, char *buf, int bsize); -+int nval_hasvalues(const char *xb, int xb_size); -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.c linux-3.15-rc5/fs/yaffs2/yaffs_nand.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_nand.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,122 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_nand.h" -+#include "yaffs_tagscompat.h" -+ -+#include "yaffs_getblockinfo.h" -+#include "yaffs_summary.h" -+ -+static int apply_chunk_offset(struct yaffs_dev *dev, int chunk) -+{ -+ return chunk - dev->chunk_offset; -+} -+ -+int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk, -+ u8 *buffer, struct yaffs_ext_tags *tags) -+{ -+ int result; -+ struct yaffs_ext_tags local_tags; -+ int flash_chunk = apply_chunk_offset(dev, nand_chunk); -+ -+ dev->n_page_reads++; -+ -+ /* If there are no tags provided use local tags. */ -+ if (!tags) -+ tags = &local_tags; -+ -+ result = dev->tagger.read_chunk_tags_fn(dev, flash_chunk, buffer, tags); -+ if (tags && tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) { -+ -+ struct yaffs_block_info *bi; -+ bi = yaffs_get_block_info(dev, -+ nand_chunk / -+ dev->param.chunks_per_block); -+ yaffs_handle_chunk_error(dev, bi); -+ } -+ return result; -+} -+ -+int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev, -+ int nand_chunk, -+ const u8 *buffer, struct yaffs_ext_tags *tags) -+{ -+ int result; -+ int flash_chunk = apply_chunk_offset(dev, nand_chunk); -+ -+ dev->n_page_writes++; -+ -+ if (!tags) { -+ yaffs_trace(YAFFS_TRACE_ERROR, "Writing with no tags"); -+ BUG(); -+ return YAFFS_FAIL; -+ } -+ -+ tags->seq_number = dev->seq_number; -+ tags->chunk_used = 1; -+ yaffs_trace(YAFFS_TRACE_WRITE, -+ "Writing chunk %d tags %d %d", -+ nand_chunk, tags->obj_id, tags->chunk_id); -+ -+ result = dev->tagger.write_chunk_tags_fn(dev, flash_chunk, -+ buffer, tags); -+ -+ yaffs_summary_add(dev, tags, nand_chunk); -+ -+ return result; -+} -+ -+int yaffs_mark_bad(struct yaffs_dev *dev, int block_no) -+{ -+ block_no -= dev->block_offset; -+ dev->n_bad_markings++; -+ -+ if (dev->param.disable_bad_block_marking) -+ return YAFFS_OK; -+ -+ return dev->tagger.mark_bad_fn(dev, block_no); -+} -+ -+ -+int yaffs_query_init_block_state(struct yaffs_dev *dev, -+ int block_no, -+ enum yaffs_block_state *state, -+ u32 *seq_number) -+{ -+ block_no -= dev->block_offset; -+ return dev->tagger.query_block_fn(dev, block_no, state, seq_number); -+} -+ -+int yaffs_erase_block(struct yaffs_dev *dev, int block_no) -+{ -+ int result; -+ -+ block_no -= dev->block_offset; -+ dev->n_erasures++; -+ result = dev->drv.drv_erase_fn(dev, block_no); -+ return result; -+} -+ -+int yaffs_init_nand(struct yaffs_dev *dev) -+{ -+ if (dev->drv.drv_initialise_fn) -+ return dev->drv.drv_initialise_fn(dev); -+ return YAFFS_OK; -+} -+ -+int yaffs_deinit_nand(struct yaffs_dev *dev) -+{ -+ if (dev->drv.drv_deinitialise_fn) -+ return dev->drv.drv_deinitialise_fn(dev); -+ return YAFFS_OK; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.h linux-3.15-rc5/fs/yaffs2/yaffs_nand.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_nand.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,39 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_NAND_H__ -+#define __YAFFS_NAND_H__ -+#include "yaffs_guts.h" -+ -+int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk, -+ u8 *buffer, struct yaffs_ext_tags *tags); -+ -+int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev, -+ int nand_chunk, -+ const u8 *buffer, struct yaffs_ext_tags *tags); -+ -+int yaffs_mark_bad(struct yaffs_dev *dev, int block_no); -+ -+int yaffs_query_init_block_state(struct yaffs_dev *dev, -+ int block_no, -+ enum yaffs_block_state *state, -+ unsigned *seq_number); -+ -+int yaffs_erase_block(struct yaffs_dev *dev, int flash_block); -+ -+int yaffs_init_nand(struct yaffs_dev *dev); -+int yaffs_deinit_nand(struct yaffs_dev *dev); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.c linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,56 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_packedtags1.h" -+#include "yportenv.h" -+ -+static const u8 all_ff[20] = { -+ 0xff, 0xff, 0xff, 0xff, -+ 0xff, 0xff, 0xff, 0xff, -+ 0xff, 0xff, 0xff, 0xff, -+ 0xff, 0xff, 0xff, 0xff, -+ 0xff, 0xff, 0xff, 0xff -+}; -+ -+void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt, -+ const struct yaffs_ext_tags *t) -+{ -+ pt->chunk_id = t->chunk_id; -+ pt->serial_number = t->serial_number; -+ pt->n_bytes = t->n_bytes; -+ pt->obj_id = t->obj_id; -+ pt->ecc = 0; -+ pt->deleted = (t->is_deleted) ? 0 : 1; -+ pt->unused_stuff = 0; -+ pt->should_be_ff = 0xffffffff; -+} -+ -+void yaffs_unpack_tags1(struct yaffs_ext_tags *t, -+ const struct yaffs_packed_tags1 *pt) -+{ -+ -+ if (memcmp(all_ff, pt, sizeof(struct yaffs_packed_tags1))) { -+ t->block_bad = 0; -+ if (pt->should_be_ff != 0xffffffff) -+ t->block_bad = 1; -+ t->chunk_used = 1; -+ t->obj_id = pt->obj_id; -+ t->chunk_id = pt->chunk_id; -+ t->n_bytes = pt->n_bytes; -+ t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR; -+ t->is_deleted = (pt->deleted) ? 0 : 1; -+ t->serial_number = pt->serial_number; -+ } else { -+ memset(t, 0, sizeof(struct yaffs_ext_tags)); -+ } -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.h linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,39 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */ -+ -+#ifndef __YAFFS_PACKEDTAGS1_H__ -+#define __YAFFS_PACKEDTAGS1_H__ -+ -+#include "yaffs_guts.h" -+ -+struct yaffs_packed_tags1 { -+ u32 chunk_id:20; -+ u32 serial_number:2; -+ u32 n_bytes:10; -+ u32 obj_id:18; -+ u32 ecc:12; -+ u32 deleted:1; -+ u32 unused_stuff:1; -+ unsigned should_be_ff; -+ -+}; -+ -+void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt, -+ const struct yaffs_ext_tags *t); -+void yaffs_unpack_tags1(struct yaffs_ext_tags *t, -+ const struct yaffs_packed_tags1 *pt); -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.c linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,197 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_packedtags2.h" -+#include "yportenv.h" -+#include "yaffs_trace.h" -+ -+/* This code packs a set of extended tags into a binary structure for -+ * NAND storage -+ */ -+ -+/* Some of the information is "extra" struff which can be packed in to -+ * speed scanning -+ * This is defined by having the EXTRA_HEADER_INFO_FLAG set. -+ */ -+ -+/* Extra flags applied to chunk_id */ -+ -+#define EXTRA_HEADER_INFO_FLAG 0x80000000 -+#define EXTRA_SHRINK_FLAG 0x40000000 -+#define EXTRA_SHADOWS_FLAG 0x20000000 -+#define EXTRA_SPARE_FLAGS 0x10000000 -+ -+#define ALL_EXTRA_FLAGS 0xf0000000 -+ -+/* Also, the top 4 bits of the object Id are set to the object type. */ -+#define EXTRA_OBJECT_TYPE_SHIFT (28) -+#define EXTRA_OBJECT_TYPE_MASK ((0x0f) << EXTRA_OBJECT_TYPE_SHIFT) -+ -+static void yaffs_dump_packed_tags2_tags_only( -+ const struct yaffs_packed_tags2_tags_only *ptt) -+{ -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "packed tags obj %d chunk %d byte %d seq %d", -+ ptt->obj_id, ptt->chunk_id, ptt->n_bytes, ptt->seq_number); -+} -+ -+static void yaffs_dump_packed_tags2(const struct yaffs_packed_tags2 *pt) -+{ -+ yaffs_dump_packed_tags2_tags_only(&pt->t); -+} -+ -+static void yaffs_dump_tags2(const struct yaffs_ext_tags *t) -+{ -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d", -+ t->ecc_result, t->block_bad, t->chunk_used, t->obj_id, -+ t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number, -+ t->seq_number); -+ -+} -+ -+static int yaffs_check_tags_extra_packable(const struct yaffs_ext_tags *t) -+{ -+ if (t->chunk_id != 0 || !t->extra_available) -+ return 0; -+ -+ /* Check if the file size is too long to store */ -+ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE && -+ (t->extra_file_size >> 31) != 0) -+ return 0; -+ return 1; -+} -+ -+void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *ptt, -+ const struct yaffs_ext_tags *t) -+{ -+ ptt->chunk_id = t->chunk_id; -+ ptt->seq_number = t->seq_number; -+ ptt->n_bytes = t->n_bytes; -+ ptt->obj_id = t->obj_id; -+ -+ /* Only store extra tags for object headers. -+ * If it is a file then only store if the file size is short\ -+ * enough to fit. -+ */ -+ if (yaffs_check_tags_extra_packable(t)) { -+ /* Store the extra header info instead */ -+ /* We save the parent object in the chunk_id */ -+ ptt->chunk_id = EXTRA_HEADER_INFO_FLAG | t->extra_parent_id; -+ if (t->extra_is_shrink) -+ ptt->chunk_id |= EXTRA_SHRINK_FLAG; -+ if (t->extra_shadows) -+ ptt->chunk_id |= EXTRA_SHADOWS_FLAG; -+ -+ ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; -+ ptt->obj_id |= (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT); -+ -+ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ ptt->n_bytes = t->extra_equiv_id; -+ else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE) -+ ptt->n_bytes = (unsigned) t->extra_file_size; -+ else -+ ptt->n_bytes = 0; -+ } -+ -+ yaffs_dump_packed_tags2_tags_only(ptt); -+ yaffs_dump_tags2(t); -+} -+ -+void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt, -+ const struct yaffs_ext_tags *t, int tags_ecc) -+{ -+ yaffs_pack_tags2_tags_only(&pt->t, t); -+ -+ if (tags_ecc) -+ yaffs_ecc_calc_other((unsigned char *)&pt->t, -+ sizeof(struct yaffs_packed_tags2_tags_only), -+ &pt->ecc); -+} -+ -+void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t, -+ struct yaffs_packed_tags2_tags_only *ptt) -+{ -+ memset(t, 0, sizeof(struct yaffs_ext_tags)); -+ -+ if (ptt->seq_number == 0xffffffff) -+ return; -+ -+ t->block_bad = 0; -+ t->chunk_used = 1; -+ t->obj_id = ptt->obj_id; -+ t->chunk_id = ptt->chunk_id; -+ t->n_bytes = ptt->n_bytes; -+ t->is_deleted = 0; -+ t->serial_number = 0; -+ t->seq_number = ptt->seq_number; -+ -+ /* Do extra header info stuff */ -+ if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) { -+ t->chunk_id = 0; -+ t->n_bytes = 0; -+ -+ t->extra_available = 1; -+ t->extra_parent_id = ptt->chunk_id & (~(ALL_EXTRA_FLAGS)); -+ t->extra_is_shrink = ptt->chunk_id & EXTRA_SHRINK_FLAG ? 1 : 0; -+ t->extra_shadows = ptt->chunk_id & EXTRA_SHADOWS_FLAG ? 1 : 0; -+ t->extra_obj_type = ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT; -+ t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; -+ -+ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ t->extra_equiv_id = ptt->n_bytes; -+ else -+ t->extra_file_size = ptt->n_bytes; -+ } -+ yaffs_dump_packed_tags2_tags_only(ptt); -+ yaffs_dump_tags2(t); -+} -+ -+void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt, -+ int tags_ecc) -+{ -+ enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR; -+ -+ if (pt->t.seq_number != 0xffffffff && tags_ecc) { -+ /* Chunk is in use and we need to do ECC */ -+ -+ struct yaffs_ecc_other ecc; -+ int result; -+ yaffs_ecc_calc_other((unsigned char *)&pt->t, -+ sizeof(struct yaffs_packed_tags2_tags_only), -+ &ecc); -+ result = -+ yaffs_ecc_correct_other((unsigned char *)&pt->t, -+ sizeof(struct yaffs_packed_tags2_tags_only), -+ &pt->ecc, &ecc); -+ switch (result) { -+ case 0: -+ ecc_result = YAFFS_ECC_RESULT_NO_ERROR; -+ break; -+ case 1: -+ ecc_result = YAFFS_ECC_RESULT_FIXED; -+ break; -+ case -1: -+ ecc_result = YAFFS_ECC_RESULT_UNFIXED; -+ break; -+ default: -+ ecc_result = YAFFS_ECC_RESULT_UNKNOWN; -+ } -+ } -+ yaffs_unpack_tags2_tags_only(t, &pt->t); -+ -+ t->ecc_result = ecc_result; -+ -+ yaffs_dump_packed_tags2(pt); -+ yaffs_dump_tags2(t); -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.h linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,47 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+/* This is used to pack YAFFS2 tags, not YAFFS1tags. */ -+ -+#ifndef __YAFFS_PACKEDTAGS2_H__ -+#define __YAFFS_PACKEDTAGS2_H__ -+ -+#include "yaffs_guts.h" -+#include "yaffs_ecc.h" -+ -+struct yaffs_packed_tags2_tags_only { -+ unsigned seq_number; -+ unsigned obj_id; -+ unsigned chunk_id; -+ unsigned n_bytes; -+}; -+ -+struct yaffs_packed_tags2 { -+ struct yaffs_packed_tags2_tags_only t; -+ struct yaffs_ecc_other ecc; -+}; -+ -+/* Full packed tags with ECC, used for oob tags */ -+void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt, -+ const struct yaffs_ext_tags *t, int tags_ecc); -+void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt, -+ int tags_ecc); -+ -+/* Only the tags part (no ECC for use with inband tags */ -+void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *pt, -+ const struct yaffs_ext_tags *t); -+void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t, -+ struct yaffs_packed_tags2_tags_only *pt); -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.c linux-3.15-rc5/fs/yaffs2/yaffs_summary.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_summary.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,312 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* Summaries write the useful part of the tags for the chunks in a block into an -+ * an array which is written to the last n chunks of the block. -+ * Reading the summaries gives all the tags for the block in one read. Much -+ * faster. -+ * -+ * Chunks holding summaries are marked with tags making it look like -+ * they are part of a fake file. -+ * -+ * The summary could also be used during gc. -+ * -+ */ -+ -+#include "yaffs_summary.h" -+#include "yaffs_packedtags2.h" -+#include "yaffs_nand.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_bitmap.h" -+ -+/* -+ * The summary is built up in an array of summary tags. -+ * This gets written to the last one or two (maybe more) chunks in a block. -+ * A summary header is written as the first part of each chunk of summary data. -+ * The summary header must match or the summary is rejected. -+ */ -+ -+/* Summary tags don't need the sequence number because that is redundant. */ -+struct yaffs_summary_tags { -+ unsigned obj_id; -+ unsigned chunk_id; -+ unsigned n_bytes; -+}; -+ -+/* Summary header */ -+struct yaffs_summary_header { -+ unsigned version; /* Must match current version */ -+ unsigned block; /* Must be this block */ -+ unsigned seq; /* Must be this sequence number */ -+ unsigned sum; /* Just add up all the bytes in the tags */ -+}; -+ -+ -+static void yaffs_summary_clear(struct yaffs_dev *dev) -+{ -+ if (!dev->sum_tags) -+ return; -+ memset(dev->sum_tags, 0, dev->chunks_per_summary * -+ sizeof(struct yaffs_summary_tags)); -+} -+ -+ -+void yaffs_summary_deinit(struct yaffs_dev *dev) -+{ -+ kfree(dev->sum_tags); -+ dev->sum_tags = NULL; -+ kfree(dev->gc_sum_tags); -+ dev->gc_sum_tags = NULL; -+ dev->chunks_per_summary = 0; -+} -+ -+int yaffs_summary_init(struct yaffs_dev *dev) -+{ -+ int sum_bytes; -+ int chunks_used; /* Number of chunks used by summary */ -+ int sum_tags_bytes; -+ -+ sum_bytes = dev->param.chunks_per_block * -+ sizeof(struct yaffs_summary_tags); -+ -+ chunks_used = (sum_bytes + dev->data_bytes_per_chunk - 1)/ -+ (dev->data_bytes_per_chunk - -+ sizeof(struct yaffs_summary_header)); -+ -+ dev->chunks_per_summary = dev->param.chunks_per_block - chunks_used; -+ sum_tags_bytes = sizeof(struct yaffs_summary_tags) * -+ dev->chunks_per_summary; -+ dev->sum_tags = kmalloc(sum_tags_bytes, GFP_NOFS); -+ dev->gc_sum_tags = kmalloc(sum_tags_bytes, GFP_NOFS); -+ if (!dev->sum_tags || !dev->gc_sum_tags) { -+ yaffs_summary_deinit(dev); -+ return YAFFS_FAIL; -+ } -+ -+ yaffs_summary_clear(dev); -+ -+ return YAFFS_OK; -+} -+ -+static unsigned yaffs_summary_sum(struct yaffs_dev *dev) -+{ -+ u8 *sum_buffer = (u8 *)dev->sum_tags; -+ int i; -+ unsigned sum = 0; -+ -+ i = sizeof(struct yaffs_summary_tags) * -+ dev->chunks_per_summary; -+ while (i > 0) { -+ sum += *sum_buffer; -+ sum_buffer++; -+ i--; -+ } -+ -+ return sum; -+} -+ -+static int yaffs_summary_write(struct yaffs_dev *dev, int blk) -+{ -+ struct yaffs_ext_tags tags; -+ u8 *buffer; -+ u8 *sum_buffer = (u8 *)dev->sum_tags; -+ int n_bytes; -+ int chunk_in_nand; -+ int chunk_in_block; -+ int result; -+ int this_tx; -+ struct yaffs_summary_header hdr; -+ int sum_bytes_per_chunk = dev->data_bytes_per_chunk - sizeof(hdr); -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk); -+ -+ buffer = yaffs_get_temp_buffer(dev); -+ n_bytes = sizeof(struct yaffs_summary_tags) * -+ dev->chunks_per_summary; -+ memset(&tags, 0, sizeof(struct yaffs_ext_tags)); -+ tags.obj_id = YAFFS_OBJECTID_SUMMARY; -+ tags.chunk_id = 1; -+ chunk_in_block = dev->chunks_per_summary; -+ chunk_in_nand = dev->alloc_block * dev->param.chunks_per_block + -+ dev->chunks_per_summary; -+ hdr.version = YAFFS_SUMMARY_VERSION; -+ hdr.block = blk; -+ hdr.seq = bi->seq_number; -+ hdr.sum = yaffs_summary_sum(dev); -+ -+ do { -+ this_tx = n_bytes; -+ if (this_tx > sum_bytes_per_chunk) -+ this_tx = sum_bytes_per_chunk; -+ memcpy(buffer, &hdr, sizeof(hdr)); -+ memcpy(buffer + sizeof(hdr), sum_buffer, this_tx); -+ tags.n_bytes = this_tx + sizeof(hdr); -+ result = yaffs_wr_chunk_tags_nand(dev, chunk_in_nand, -+ buffer, &tags); -+ -+ if (result != YAFFS_OK) -+ break; -+ yaffs_set_chunk_bit(dev, blk, chunk_in_block); -+ bi->pages_in_use++; -+ dev->n_free_chunks--; -+ -+ n_bytes -= this_tx; -+ sum_buffer += this_tx; -+ chunk_in_nand++; -+ chunk_in_block++; -+ tags.chunk_id++; -+ } while (result == YAFFS_OK && n_bytes > 0); -+ yaffs_release_temp_buffer(dev, buffer); -+ -+ -+ if (result == YAFFS_OK) -+ bi->has_summary = 1; -+ -+ -+ return result; -+} -+ -+int yaffs_summary_read(struct yaffs_dev *dev, -+ struct yaffs_summary_tags *st, -+ int blk) -+{ -+ struct yaffs_ext_tags tags; -+ u8 *buffer; -+ u8 *sum_buffer = (u8 *)st; -+ int n_bytes; -+ int chunk_id; -+ int chunk_in_nand; -+ int chunk_in_block; -+ int result; -+ int this_tx; -+ struct yaffs_summary_header hdr; -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk); -+ int sum_bytes_per_chunk = dev->data_bytes_per_chunk - sizeof(hdr); -+ int sum_tags_bytes; -+ -+ sum_tags_bytes = sizeof(struct yaffs_summary_tags) * -+ dev->chunks_per_summary; -+ buffer = yaffs_get_temp_buffer(dev); -+ n_bytes = sizeof(struct yaffs_summary_tags) * dev->chunks_per_summary; -+ chunk_in_block = dev->chunks_per_summary; -+ chunk_in_nand = blk * dev->param.chunks_per_block + -+ dev->chunks_per_summary; -+ chunk_id = 1; -+ do { -+ this_tx = n_bytes; -+ if (this_tx > sum_bytes_per_chunk) -+ this_tx = sum_bytes_per_chunk; -+ result = yaffs_rd_chunk_tags_nand(dev, chunk_in_nand, -+ buffer, &tags); -+ -+ if (tags.chunk_id != chunk_id || -+ tags.obj_id != YAFFS_OBJECTID_SUMMARY || -+ tags.chunk_used == 0 || -+ tags.ecc_result > YAFFS_ECC_RESULT_FIXED || -+ tags.n_bytes != (this_tx + sizeof(hdr))) -+ result = YAFFS_FAIL; -+ if (result != YAFFS_OK) -+ break; -+ -+ if (st == dev->sum_tags) { -+ /* If we're scanning then update the block info */ -+ yaffs_set_chunk_bit(dev, blk, chunk_in_block); -+ bi->pages_in_use++; -+ } -+ memcpy(&hdr, buffer, sizeof(hdr)); -+ memcpy(sum_buffer, buffer + sizeof(hdr), this_tx); -+ n_bytes -= this_tx; -+ sum_buffer += this_tx; -+ chunk_in_nand++; -+ chunk_in_block++; -+ chunk_id++; -+ } while (result == YAFFS_OK && n_bytes > 0); -+ yaffs_release_temp_buffer(dev, buffer); -+ -+ if (result == YAFFS_OK) { -+ /* Verify header */ -+ if (hdr.version != YAFFS_SUMMARY_VERSION || -+ hdr.seq != bi->seq_number || -+ hdr.sum != yaffs_summary_sum(dev)) -+ result = YAFFS_FAIL; -+ } -+ -+ if (st == dev->sum_tags && result == YAFFS_OK) -+ bi->has_summary = 1; -+ -+ return result; -+} -+ -+int yaffs_summary_add(struct yaffs_dev *dev, -+ struct yaffs_ext_tags *tags, -+ int chunk_in_nand) -+{ -+ struct yaffs_packed_tags2_tags_only tags_only; -+ struct yaffs_summary_tags *sum_tags; -+ int block_in_nand = chunk_in_nand / dev->param.chunks_per_block; -+ int chunk_in_block = chunk_in_nand % dev->param.chunks_per_block; -+ -+ if (!dev->sum_tags) -+ return YAFFS_OK; -+ -+ if (chunk_in_block >= 0 && chunk_in_block < dev->chunks_per_summary) { -+ yaffs_pack_tags2_tags_only(&tags_only, tags); -+ sum_tags = &dev->sum_tags[chunk_in_block]; -+ sum_tags->chunk_id = tags_only.chunk_id; -+ sum_tags->n_bytes = tags_only.n_bytes; -+ sum_tags->obj_id = tags_only.obj_id; -+ -+ if (chunk_in_block == dev->chunks_per_summary - 1) { -+ /* Time to write out the summary */ -+ yaffs_summary_write(dev, block_in_nand); -+ yaffs_summary_clear(dev); -+ yaffs_skip_rest_of_block(dev); -+ } -+ } -+ return YAFFS_OK; -+} -+ -+int yaffs_summary_fetch(struct yaffs_dev *dev, -+ struct yaffs_ext_tags *tags, -+ int chunk_in_block) -+{ -+ struct yaffs_packed_tags2_tags_only tags_only; -+ struct yaffs_summary_tags *sum_tags; -+ if (chunk_in_block >= 0 && chunk_in_block < dev->chunks_per_summary) { -+ sum_tags = &dev->sum_tags[chunk_in_block]; -+ tags_only.chunk_id = sum_tags->chunk_id; -+ tags_only.n_bytes = sum_tags->n_bytes; -+ tags_only.obj_id = sum_tags->obj_id; -+ yaffs_unpack_tags2_tags_only(tags, &tags_only); -+ return YAFFS_OK; -+ } -+ return YAFFS_FAIL; -+} -+ -+void yaffs_summary_gc(struct yaffs_dev *dev, int blk) -+{ -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk); -+ int i; -+ -+ if (!bi->has_summary) -+ return; -+ -+ for (i = dev->chunks_per_summary; -+ i < dev->param.chunks_per_block; -+ i++) { -+ if (yaffs_check_chunk_bit(dev, blk, i)) { -+ yaffs_clear_chunk_bit(dev, blk, i); -+ bi->pages_in_use--; -+ dev->n_free_chunks++; -+ } -+ } -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.h linux-3.15-rc5/fs/yaffs2/yaffs_summary.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_summary.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,37 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_SUMMARY_H__ -+#define __YAFFS_SUMMARY_H__ -+ -+#include "yaffs_packedtags2.h" -+ -+ -+int yaffs_summary_init(struct yaffs_dev *dev); -+void yaffs_summary_deinit(struct yaffs_dev *dev); -+ -+int yaffs_summary_add(struct yaffs_dev *dev, -+ struct yaffs_ext_tags *tags, -+ int chunk_in_block); -+int yaffs_summary_fetch(struct yaffs_dev *dev, -+ struct yaffs_ext_tags *tags, -+ int chunk_in_block); -+int yaffs_summary_read(struct yaffs_dev *dev, -+ struct yaffs_summary_tags *st, -+ int blk); -+void yaffs_summary_gc(struct yaffs_dev *dev, int blk); -+ -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.c linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,381 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_guts.h" -+#include "yaffs_tagscompat.h" -+#include "yaffs_ecc.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_trace.h" -+ -+static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk); -+ -+ -+/********** Tags ECC calculations *********/ -+ -+ -+void yaffs_calc_tags_ecc(struct yaffs_tags *tags) -+{ -+ /* Calculate an ecc */ -+ unsigned char *b = ((union yaffs_tags_union *)tags)->as_bytes; -+ unsigned i, j; -+ unsigned ecc = 0; -+ unsigned bit = 0; -+ -+ tags->ecc = 0; -+ -+ for (i = 0; i < 8; i++) { -+ for (j = 1; j & 0xff; j <<= 1) { -+ bit++; -+ if (b[i] & j) -+ ecc ^= bit; -+ } -+ } -+ tags->ecc = ecc; -+} -+ -+int yaffs_check_tags_ecc(struct yaffs_tags *tags) -+{ -+ unsigned ecc = tags->ecc; -+ -+ yaffs_calc_tags_ecc(tags); -+ -+ ecc ^= tags->ecc; -+ -+ if (ecc && ecc <= 64) { -+ /* TODO: Handle the failure better. Retire? */ -+ unsigned char *b = ((union yaffs_tags_union *)tags)->as_bytes; -+ -+ ecc--; -+ -+ b[ecc / 8] ^= (1 << (ecc & 7)); -+ -+ /* Now recvalc the ecc */ -+ yaffs_calc_tags_ecc(tags); -+ -+ return 1; /* recovered error */ -+ } else if (ecc) { -+ /* Wierd ecc failure value */ -+ /* TODO Need to do somethiong here */ -+ return -1; /* unrecovered error */ -+ } -+ return 0; -+} -+ -+/********** Tags **********/ -+ -+static void yaffs_load_tags_to_spare(struct yaffs_spare *spare_ptr, -+ struct yaffs_tags *tags_ptr) -+{ -+ union yaffs_tags_union *tu = (union yaffs_tags_union *)tags_ptr; -+ -+ yaffs_calc_tags_ecc(tags_ptr); -+ -+ spare_ptr->tb0 = tu->as_bytes[0]; -+ spare_ptr->tb1 = tu->as_bytes[1]; -+ spare_ptr->tb2 = tu->as_bytes[2]; -+ spare_ptr->tb3 = tu->as_bytes[3]; -+ spare_ptr->tb4 = tu->as_bytes[4]; -+ spare_ptr->tb5 = tu->as_bytes[5]; -+ spare_ptr->tb6 = tu->as_bytes[6]; -+ spare_ptr->tb7 = tu->as_bytes[7]; -+} -+ -+static void yaffs_get_tags_from_spare(struct yaffs_dev *dev, -+ struct yaffs_spare *spare_ptr, -+ struct yaffs_tags *tags_ptr) -+{ -+ union yaffs_tags_union *tu = (union yaffs_tags_union *)tags_ptr; -+ int result; -+ -+ tu->as_bytes[0] = spare_ptr->tb0; -+ tu->as_bytes[1] = spare_ptr->tb1; -+ tu->as_bytes[2] = spare_ptr->tb2; -+ tu->as_bytes[3] = spare_ptr->tb3; -+ tu->as_bytes[4] = spare_ptr->tb4; -+ tu->as_bytes[5] = spare_ptr->tb5; -+ tu->as_bytes[6] = spare_ptr->tb6; -+ tu->as_bytes[7] = spare_ptr->tb7; -+ -+ result = yaffs_check_tags_ecc(tags_ptr); -+ if (result > 0) -+ dev->n_tags_ecc_fixed++; -+ else if (result < 0) -+ dev->n_tags_ecc_unfixed++; -+} -+ -+static void yaffs_spare_init(struct yaffs_spare *spare) -+{ -+ memset(spare, 0xff, sizeof(struct yaffs_spare)); -+} -+ -+static int yaffs_wr_nand(struct yaffs_dev *dev, -+ int nand_chunk, const u8 *data, -+ struct yaffs_spare *spare) -+{ -+ int data_size = dev->data_bytes_per_chunk; -+ -+ return dev->drv.drv_write_chunk_fn(dev, nand_chunk, -+ data, data_size, -+ (u8 *) spare, sizeof(*spare)); -+} -+ -+static int yaffs_rd_chunk_nand(struct yaffs_dev *dev, -+ int nand_chunk, -+ u8 *data, -+ struct yaffs_spare *spare, -+ enum yaffs_ecc_result *ecc_result, -+ int correct_errors) -+{ -+ int ret_val; -+ struct yaffs_spare local_spare; -+ int data_size; -+ int spare_size; -+ int ecc_result1, ecc_result2; -+ u8 calc_ecc[3]; -+ -+ if (!spare) { -+ /* If we don't have a real spare, then we use a local one. */ -+ /* Need this for the calculation of the ecc */ -+ spare = &local_spare; -+ } -+ data_size = dev->data_bytes_per_chunk; -+ spare_size = sizeof(struct yaffs_spare); -+ -+ if (dev->param.use_nand_ecc) -+ return dev->drv.drv_read_chunk_fn(dev, nand_chunk, -+ data, data_size, -+ (u8 *) spare, spare_size, -+ ecc_result); -+ -+ -+ /* Handle the ECC at this level. */ -+ -+ ret_val = dev->drv.drv_read_chunk_fn(dev, nand_chunk, -+ data, data_size, -+ (u8 *)spare, spare_size, -+ NULL); -+ if (!data || !correct_errors) -+ return ret_val; -+ -+ /* Do ECC correction if needed. */ -+ yaffs_ecc_calc(data, calc_ecc); -+ ecc_result1 = yaffs_ecc_correct(data, spare->ecc1, calc_ecc); -+ yaffs_ecc_calc(&data[256], calc_ecc); -+ ecc_result2 = yaffs_ecc_correct(&data[256], spare->ecc2, calc_ecc); -+ -+ if (ecc_result1 > 0) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>>yaffs ecc error fix performed on chunk %d:0", -+ nand_chunk); -+ dev->n_ecc_fixed++; -+ } else if (ecc_result1 < 0) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>>yaffs ecc error unfixed on chunk %d:0", -+ nand_chunk); -+ dev->n_ecc_unfixed++; -+ } -+ -+ if (ecc_result2 > 0) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>>yaffs ecc error fix performed on chunk %d:1", -+ nand_chunk); -+ dev->n_ecc_fixed++; -+ } else if (ecc_result2 < 0) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "**>>yaffs ecc error unfixed on chunk %d:1", -+ nand_chunk); -+ dev->n_ecc_unfixed++; -+ } -+ -+ if (ecc_result1 || ecc_result2) { -+ /* We had a data problem on this page */ -+ yaffs_handle_rd_data_error(dev, nand_chunk); -+ } -+ -+ if (ecc_result1 < 0 || ecc_result2 < 0) -+ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; -+ else if (ecc_result1 > 0 || ecc_result2 > 0) -+ *ecc_result = YAFFS_ECC_RESULT_FIXED; -+ else -+ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; -+ -+ return ret_val; -+} -+ -+/* -+ * Functions for robustisizing -+ */ -+ -+static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk) -+{ -+ int flash_block = nand_chunk / dev->param.chunks_per_block; -+ -+ /* Mark the block for retirement */ -+ yaffs_get_block_info(dev, flash_block + dev->block_offset)-> -+ needs_retiring = 1; -+ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, -+ "**>>Block %d marked for retirement", -+ flash_block); -+ -+ /* TODO: -+ * Just do a garbage collection on the affected block -+ * then retire the block -+ * NB recursion -+ */ -+} -+ -+static int yaffs_tags_compat_wr(struct yaffs_dev *dev, -+ int nand_chunk, -+ const u8 *data, const struct yaffs_ext_tags *ext_tags) -+{ -+ struct yaffs_spare spare; -+ struct yaffs_tags tags; -+ -+ yaffs_spare_init(&spare); -+ -+ if (ext_tags->is_deleted) -+ spare.page_status = 0; -+ else { -+ tags.obj_id = ext_tags->obj_id; -+ tags.chunk_id = ext_tags->chunk_id; -+ -+ tags.n_bytes_lsb = ext_tags->n_bytes & (1024 - 1); -+ -+ if (dev->data_bytes_per_chunk >= 1024) -+ tags.n_bytes_msb = (ext_tags->n_bytes >> 10) & 3; -+ else -+ tags.n_bytes_msb = 3; -+ -+ tags.serial_number = ext_tags->serial_number; -+ -+ if (!dev->param.use_nand_ecc && data) { -+ yaffs_ecc_calc(data, spare.ecc1); -+ yaffs_ecc_calc(&data[256], spare.ecc2); -+ } -+ -+ yaffs_load_tags_to_spare(&spare, &tags); -+ } -+ return yaffs_wr_nand(dev, nand_chunk, data, &spare); -+} -+ -+static int yaffs_tags_compat_rd(struct yaffs_dev *dev, -+ int nand_chunk, -+ u8 *data, struct yaffs_ext_tags *ext_tags) -+{ -+ struct yaffs_spare spare; -+ struct yaffs_tags tags; -+ enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN; -+ static struct yaffs_spare spare_ff; -+ static int init; -+ int deleted; -+ -+ if (!init) { -+ memset(&spare_ff, 0xff, sizeof(spare_ff)); -+ init = 1; -+ } -+ -+ if (!yaffs_rd_chunk_nand(dev, nand_chunk, -+ data, &spare, &ecc_result, 1)) -+ return YAFFS_FAIL; -+ -+ /* ext_tags may be NULL */ -+ if (!ext_tags) -+ return YAFFS_OK; -+ -+ deleted = (hweight8(spare.page_status) < 7) ? 1 : 0; -+ -+ ext_tags->is_deleted = deleted; -+ ext_tags->ecc_result = ecc_result; -+ ext_tags->block_bad = 0; /* We're reading it */ -+ /* therefore it is not a bad block */ -+ ext_tags->chunk_used = -+ memcmp(&spare_ff, &spare, sizeof(spare_ff)) ? 1 : 0; -+ -+ if (ext_tags->chunk_used) { -+ yaffs_get_tags_from_spare(dev, &spare, &tags); -+ ext_tags->obj_id = tags.obj_id; -+ ext_tags->chunk_id = tags.chunk_id; -+ ext_tags->n_bytes = tags.n_bytes_lsb; -+ -+ if (dev->data_bytes_per_chunk >= 1024) -+ ext_tags->n_bytes |= -+ (((unsigned)tags.n_bytes_msb) << 10); -+ -+ ext_tags->serial_number = tags.serial_number; -+ } -+ -+ return YAFFS_OK; -+} -+ -+static int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int flash_block) -+{ -+ struct yaffs_spare spare; -+ -+ memset(&spare, 0xff, sizeof(struct yaffs_spare)); -+ -+ spare.block_status = 'Y'; -+ -+ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL, -+ &spare); -+ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1, -+ NULL, &spare); -+ -+ return YAFFS_OK; -+} -+ -+static int yaffs_tags_compat_query_block(struct yaffs_dev *dev, -+ int block_no, -+ enum yaffs_block_state *state, -+ u32 *seq_number) -+{ -+ struct yaffs_spare spare0, spare1; -+ static struct yaffs_spare spare_ff; -+ static int init; -+ enum yaffs_ecc_result dummy; -+ -+ if (!init) { -+ memset(&spare_ff, 0xff, sizeof(spare_ff)); -+ init = 1; -+ } -+ -+ *seq_number = 0; -+ -+ /* Look for bad block markers in the first two chunks */ -+ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, -+ NULL, &spare0, &dummy, 0); -+ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1, -+ NULL, &spare1, &dummy, 0); -+ -+ if (hweight8(spare0.block_status & spare1.block_status) < 7) -+ *state = YAFFS_BLOCK_STATE_DEAD; -+ else if (memcmp(&spare_ff, &spare0, sizeof(spare_ff)) == 0) -+ *state = YAFFS_BLOCK_STATE_EMPTY; -+ else -+ *state = YAFFS_BLOCK_STATE_NEEDS_SCAN; -+ -+ return YAFFS_OK; -+} -+ -+void yaffs_tags_compat_install(struct yaffs_dev *dev) -+{ -+ if(dev->param.is_yaffs2) -+ return; -+ if(!dev->tagger.write_chunk_tags_fn) -+ dev->tagger.write_chunk_tags_fn = yaffs_tags_compat_wr; -+ if(!dev->tagger.read_chunk_tags_fn) -+ dev->tagger.read_chunk_tags_fn = yaffs_tags_compat_rd; -+ if(!dev->tagger.query_block_fn) -+ dev->tagger.query_block_fn = yaffs_tags_compat_query_block; -+ if(!dev->tagger.mark_bad_fn) -+ dev->tagger.mark_bad_fn = yaffs_tags_compat_mark_bad; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.h linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,44 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_TAGSCOMPAT_H__ -+#define __YAFFS_TAGSCOMPAT_H__ -+ -+ -+#include "yaffs_guts.h" -+ -+#if 0 -+ -+ -+int yaffs_tags_compat_wr(struct yaffs_dev *dev, -+ int nand_chunk, -+ const u8 *data, const struct yaffs_ext_tags *tags); -+int yaffs_tags_compat_rd(struct yaffs_dev *dev, -+ int nand_chunk, -+ u8 *data, struct yaffs_ext_tags *tags); -+int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int block_no); -+int yaffs_tags_compat_query_block(struct yaffs_dev *dev, -+ int block_no, -+ enum yaffs_block_state *state, -+ u32 *seq_number); -+ -+#endif -+ -+ -+void yaffs_tags_compat_install(struct yaffs_dev *dev); -+void yaffs_calc_tags_ecc(struct yaffs_tags *tags); -+int yaffs_check_tags_ecc(struct yaffs_tags *tags); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.c linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,199 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+#include "yaffs_packedtags2.h" -+ -+static int yaffs_tags_marshall_write(struct yaffs_dev *dev, -+ int nand_chunk, const u8 *data, -+ const struct yaffs_ext_tags *tags) -+{ -+ struct yaffs_packed_tags2 pt; -+ int retval; -+ -+ int packed_tags_size = -+ dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); -+ void *packed_tags_ptr = -+ dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt; -+ -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "yaffs_tags_marshall_write chunk %d data %p tags %p", -+ nand_chunk, data, tags); -+ -+ /* For yaffs2 writing there must be both data and tags. -+ * If we're using inband tags, then the tags are stuffed into -+ * the end of the data buffer. -+ */ -+ if (!data || !tags) -+ BUG(); -+ else if (dev->param.inband_tags) { -+ struct yaffs_packed_tags2_tags_only *pt2tp; -+ pt2tp = -+ (struct yaffs_packed_tags2_tags_only *)(data + -+ dev-> -+ data_bytes_per_chunk); -+ yaffs_pack_tags2_tags_only(pt2tp, tags); -+ } else { -+ yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc); -+ } -+ -+ retval = dev->drv.drv_write_chunk_fn(dev, nand_chunk, -+ data, dev->param.total_bytes_per_chunk, -+ (dev->param.inband_tags) ? NULL : packed_tags_ptr, -+ (dev->param.inband_tags) ? 0 : packed_tags_size); -+ -+ return retval; -+} -+ -+static int yaffs_tags_marshall_read(struct yaffs_dev *dev, -+ int nand_chunk, u8 *data, -+ struct yaffs_ext_tags *tags) -+{ -+ int retval = 0; -+ int local_data = 0; -+ u8 spare_buffer[100]; -+ enum yaffs_ecc_result ecc_result; -+ -+ struct yaffs_packed_tags2 pt; -+ -+ int packed_tags_size = -+ dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); -+ void *packed_tags_ptr = -+ dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt; -+ -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "yaffs_tags_marshall_read chunk %d data %p tags %p", -+ nand_chunk, data, tags); -+ -+ if (dev->param.inband_tags) { -+ if (!data) { -+ local_data = 1; -+ data = yaffs_get_temp_buffer(dev); -+ } -+ } -+ -+ if (dev->param.inband_tags || (data && !tags)) -+ retval = dev->drv.drv_read_chunk_fn(dev, nand_chunk, -+ data, dev->param.total_bytes_per_chunk, -+ NULL, 0, -+ &ecc_result); -+ else if (tags) -+ retval = dev->drv.drv_read_chunk_fn(dev, nand_chunk, -+ data, dev->param.total_bytes_per_chunk, -+ spare_buffer, packed_tags_size, -+ &ecc_result); -+ else -+ BUG(); -+ -+ -+ if (dev->param.inband_tags) { -+ if (tags) { -+ struct yaffs_packed_tags2_tags_only *pt2tp; -+ pt2tp = -+ (struct yaffs_packed_tags2_tags_only *) -+ &data[dev->data_bytes_per_chunk]; -+ yaffs_unpack_tags2_tags_only(tags, pt2tp); -+ } -+ } else if (tags) { -+ memcpy(packed_tags_ptr, spare_buffer, packed_tags_size); -+ yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); -+ } -+ -+ if (local_data) -+ yaffs_release_temp_buffer(dev, data); -+ -+ if (tags && ecc_result == YAFFS_ECC_RESULT_UNFIXED) { -+ tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED; -+ dev->n_ecc_unfixed++; -+ } -+ -+ if (tags && ecc_result == -YAFFS_ECC_RESULT_FIXED) { -+ if (tags->ecc_result <= YAFFS_ECC_RESULT_NO_ERROR) -+ tags->ecc_result = YAFFS_ECC_RESULT_FIXED; -+ dev->n_ecc_fixed++; -+ } -+ -+ if (ecc_result < YAFFS_ECC_RESULT_UNFIXED) -+ return YAFFS_OK; -+ else -+ return YAFFS_FAIL; -+} -+ -+static int yaffs_tags_marshall_query_block(struct yaffs_dev *dev, int block_no, -+ enum yaffs_block_state *state, -+ u32 *seq_number) -+{ -+ int retval; -+ -+ yaffs_trace(YAFFS_TRACE_MTD, "yaffs_tags_marshall_query_block %d", -+ block_no); -+ -+ retval = dev->drv.drv_check_bad_fn(dev, block_no); -+ -+ if (retval== YAFFS_FAIL) { -+ yaffs_trace(YAFFS_TRACE_MTD, "block is bad"); -+ -+ *state = YAFFS_BLOCK_STATE_DEAD; -+ *seq_number = 0; -+ } else { -+ struct yaffs_ext_tags t; -+ -+ yaffs_tags_marshall_read(dev, -+ block_no * dev->param.chunks_per_block, -+ NULL, &t); -+ -+ if (t.chunk_used) { -+ *seq_number = t.seq_number; -+ *state = YAFFS_BLOCK_STATE_NEEDS_SCAN; -+ } else { -+ *seq_number = 0; -+ *state = YAFFS_BLOCK_STATE_EMPTY; -+ } -+ } -+ -+ yaffs_trace(YAFFS_TRACE_MTD, -+ "block query returns seq %d state %d", -+ *seq_number, *state); -+ -+ if (retval == 0) -+ return YAFFS_OK; -+ else -+ return YAFFS_FAIL; -+} -+ -+static int yaffs_tags_marshall_mark_bad(struct yaffs_dev *dev, int block_no) -+{ -+ return dev->drv.drv_mark_bad_fn(dev, block_no); -+ -+} -+ -+ -+void yaffs_tags_marshall_install(struct yaffs_dev *dev) -+{ -+ if (!dev->param.is_yaffs2) -+ return; -+ -+ if (!dev->tagger.write_chunk_tags_fn) -+ dev->tagger.write_chunk_tags_fn = yaffs_tags_marshall_write; -+ -+ if (!dev->tagger.read_chunk_tags_fn) -+ dev->tagger.read_chunk_tags_fn = yaffs_tags_marshall_read; -+ -+ if (!dev->tagger.query_block_fn) -+ dev->tagger.query_block_fn = yaffs_tags_marshall_query_block; -+ -+ if (!dev->tagger.mark_bad_fn) -+ dev->tagger.mark_bad_fn = yaffs_tags_marshall_mark_bad; -+ -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.h linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,22 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_TAGSMARSHALL_H__ -+#define __YAFFS_TAGSMARSHALL_H__ -+ -+#include "yaffs_guts.h" -+void yaffs_tags_marshall_install(struct yaffs_dev *dev); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_trace.h linux-3.15-rc5/fs/yaffs2/yaffs_trace.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_trace.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_trace.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,57 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YTRACE_H__ -+#define __YTRACE_H__ -+ -+extern unsigned int yaffs_trace_mask; -+extern unsigned int yaffs_wr_attempts; -+ -+/* -+ * Tracing flags. -+ * The flags masked in YAFFS_TRACE_ALWAYS are always traced. -+ */ -+ -+#define YAFFS_TRACE_OS 0x00000002 -+#define YAFFS_TRACE_ALLOCATE 0x00000004 -+#define YAFFS_TRACE_SCAN 0x00000008 -+#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 -+#define YAFFS_TRACE_ERASE 0x00000020 -+#define YAFFS_TRACE_GC 0x00000040 -+#define YAFFS_TRACE_WRITE 0x00000080 -+#define YAFFS_TRACE_TRACING 0x00000100 -+#define YAFFS_TRACE_DELETION 0x00000200 -+#define YAFFS_TRACE_BUFFERS 0x00000400 -+#define YAFFS_TRACE_NANDACCESS 0x00000800 -+#define YAFFS_TRACE_GC_DETAIL 0x00001000 -+#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 -+#define YAFFS_TRACE_MTD 0x00004000 -+#define YAFFS_TRACE_CHECKPOINT 0x00008000 -+ -+#define YAFFS_TRACE_VERIFY 0x00010000 -+#define YAFFS_TRACE_VERIFY_NAND 0x00020000 -+#define YAFFS_TRACE_VERIFY_FULL 0x00040000 -+#define YAFFS_TRACE_VERIFY_ALL 0x000f0000 -+ -+#define YAFFS_TRACE_SYNC 0x00100000 -+#define YAFFS_TRACE_BACKGROUND 0x00200000 -+#define YAFFS_TRACE_LOCK 0x00400000 -+#define YAFFS_TRACE_MOUNT 0x00800000 -+ -+#define YAFFS_TRACE_ERROR 0x40000000 -+#define YAFFS_TRACE_BUG 0x80000000 -+#define YAFFS_TRACE_ALWAYS 0xf0000000 -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.c linux-3.15-rc5/fs/yaffs2/yaffs_verify.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_verify.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,529 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_verify.h" -+#include "yaffs_trace.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_nand.h" -+ -+int yaffs_skip_verification(struct yaffs_dev *dev) -+{ -+ (void) dev; -+ return !(yaffs_trace_mask & -+ (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); -+} -+ -+static int yaffs_skip_full_verification(struct yaffs_dev *dev) -+{ -+ (void) dev; -+ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_FULL)); -+} -+ -+static int yaffs_skip_nand_verification(struct yaffs_dev *dev) -+{ -+ (void) dev; -+ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_NAND)); -+} -+ -+static const char * const block_state_name[] = { -+ "Unknown", -+ "Needs scan", -+ "Scanning", -+ "Empty", -+ "Allocating", -+ "Full", -+ "Dirty", -+ "Checkpoint", -+ "Collecting", -+ "Dead" -+}; -+ -+void yaffs_verify_blk(struct yaffs_dev *dev, struct yaffs_block_info *bi, int n) -+{ -+ int actually_used; -+ int in_use; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ /* Report illegal runtime states */ -+ if (bi->block_state >= YAFFS_NUMBER_OF_BLOCK_STATES) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Block %d has undefined state %d", -+ n, bi->block_state); -+ -+ switch (bi->block_state) { -+ case YAFFS_BLOCK_STATE_UNKNOWN: -+ case YAFFS_BLOCK_STATE_SCANNING: -+ case YAFFS_BLOCK_STATE_NEEDS_SCAN: -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Block %d has bad run-state %s", -+ n, block_state_name[bi->block_state]); -+ } -+ -+ /* Check pages in use and soft deletions are legal */ -+ -+ actually_used = bi->pages_in_use - bi->soft_del_pages; -+ -+ if (bi->pages_in_use < 0 || -+ bi->pages_in_use > dev->param.chunks_per_block || -+ bi->soft_del_pages < 0 || -+ bi->soft_del_pages > dev->param.chunks_per_block || -+ actually_used < 0 || actually_used > dev->param.chunks_per_block) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Block %d has illegal values pages_in_used %d soft_del_pages %d", -+ n, bi->pages_in_use, bi->soft_del_pages); -+ -+ /* Check chunk bitmap legal */ -+ in_use = yaffs_count_chunk_bits(dev, n); -+ if (in_use != bi->pages_in_use) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Block %d has inconsistent values pages_in_use %d counted chunk bits %d", -+ n, bi->pages_in_use, in_use); -+} -+ -+void yaffs_verify_collected_blk(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi, int n) -+{ -+ yaffs_verify_blk(dev, bi, n); -+ -+ /* After collection the block should be in the erased state */ -+ -+ if (bi->block_state != YAFFS_BLOCK_STATE_COLLECTING && -+ bi->block_state != YAFFS_BLOCK_STATE_EMPTY) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "Block %d is in state %d after gc, should be erased", -+ n, bi->block_state); -+ } -+} -+ -+void yaffs_verify_blocks(struct yaffs_dev *dev) -+{ -+ int i; -+ int state_count[YAFFS_NUMBER_OF_BLOCK_STATES]; -+ int illegal_states = 0; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ memset(state_count, 0, sizeof(state_count)); -+ -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, i); -+ yaffs_verify_blk(dev, bi, i); -+ -+ if (bi->block_state < YAFFS_NUMBER_OF_BLOCK_STATES) -+ state_count[bi->block_state]++; -+ else -+ illegal_states++; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_VERIFY, "Block summary"); -+ -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "%d blocks have illegal states", -+ illegal_states); -+ if (state_count[YAFFS_BLOCK_STATE_ALLOCATING] > 1) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Too many allocating blocks"); -+ -+ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "%s %d blocks", -+ block_state_name[i], state_count[i]); -+ -+ if (dev->blocks_in_checkpt != state_count[YAFFS_BLOCK_STATE_CHECKPOINT]) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Checkpoint block count wrong dev %d count %d", -+ dev->blocks_in_checkpt, -+ state_count[YAFFS_BLOCK_STATE_CHECKPOINT]); -+ -+ if (dev->n_erased_blocks != state_count[YAFFS_BLOCK_STATE_EMPTY]) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Erased block count wrong dev %d count %d", -+ dev->n_erased_blocks, -+ state_count[YAFFS_BLOCK_STATE_EMPTY]); -+ -+ if (state_count[YAFFS_BLOCK_STATE_COLLECTING] > 1) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Too many collecting blocks %d (max is 1)", -+ state_count[YAFFS_BLOCK_STATE_COLLECTING]); -+} -+ -+/* -+ * Verify the object header. oh must be valid, but obj and tags may be NULL in -+ * which case those tests will not be performed. -+ */ -+void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh, -+ struct yaffs_ext_tags *tags, int parent_check) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ if (!(tags && obj && oh)) { -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Verifying object header tags %p obj %p oh %p", -+ tags, obj, oh); -+ return; -+ } -+ -+ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || -+ oh->type > YAFFS_OBJECT_TYPE_MAX) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d header type is illegal value 0x%x", -+ tags->obj_id, oh->type); -+ -+ if (tags->obj_id != obj->obj_id) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d header mismatch obj_id %d", -+ tags->obj_id, obj->obj_id); -+ -+ /* -+ * Check that the object's parent ids match if parent_check requested. -+ * -+ * Tests do not apply to the root object. -+ */ -+ -+ if (parent_check && tags->obj_id > 1 && !obj->parent) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d header mismatch parent_id %d obj->parent is NULL", -+ tags->obj_id, oh->parent_obj_id); -+ -+ if (parent_check && obj->parent && -+ oh->parent_obj_id != obj->parent->obj_id && -+ (oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED || -+ obj->parent->obj_id != YAFFS_OBJECTID_DELETED)) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d header mismatch parent_id %d parent_obj_id %d", -+ tags->obj_id, oh->parent_obj_id, -+ obj->parent->obj_id); -+ -+ if (tags->obj_id > 1 && oh->name[0] == 0) /* Null name */ -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d header name is NULL", -+ obj->obj_id); -+ -+ if (tags->obj_id > 1 && ((u8) (oh->name[0])) == 0xff) /* Junk name */ -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d header name is 0xff", -+ obj->obj_id); -+} -+ -+void yaffs_verify_file(struct yaffs_obj *obj) -+{ -+ u32 x; -+ int required_depth; -+ int actual_depth; -+ int last_chunk; -+ u32 offset_in_chunk; -+ u32 the_chunk; -+ -+ u32 i; -+ struct yaffs_dev *dev; -+ struct yaffs_ext_tags tags; -+ struct yaffs_tnode *tn; -+ u32 obj_id; -+ -+ if (!obj) -+ return; -+ -+ if (yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ dev = obj->my_dev; -+ obj_id = obj->obj_id; -+ -+ -+ /* Check file size is consistent with tnode depth */ -+ yaffs_addr_to_chunk(dev, obj->variant.file_variant.file_size, -+ &last_chunk, &offset_in_chunk); -+ last_chunk++; -+ x = last_chunk >> YAFFS_TNODES_LEVEL0_BITS; -+ required_depth = 0; -+ while (x > 0) { -+ x >>= YAFFS_TNODES_INTERNAL_BITS; -+ required_depth++; -+ } -+ -+ actual_depth = obj->variant.file_variant.top_level; -+ -+ /* Check that the chunks in the tnode tree are all correct. -+ * We do this by scanning through the tnode tree and -+ * checking the tags for every chunk match. -+ */ -+ -+ if (yaffs_skip_nand_verification(dev)) -+ return; -+ -+ for (i = 1; i <= last_chunk; i++) { -+ tn = yaffs_find_tnode_0(dev, &obj->variant.file_variant, i); -+ -+ if (!tn) -+ continue; -+ -+ the_chunk = yaffs_get_group_base(dev, tn, i); -+ if (the_chunk > 0) { -+ yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL, -+ &tags); -+ if (tags.obj_id != obj_id || tags.chunk_id != i) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)", -+ obj_id, i, the_chunk, -+ tags.obj_id, tags.chunk_id); -+ } -+ } -+} -+ -+void yaffs_verify_link(struct yaffs_obj *obj) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ /* Verify sane equivalent object */ -+} -+ -+void yaffs_verify_symlink(struct yaffs_obj *obj) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ /* Verify symlink string */ -+} -+ -+void yaffs_verify_special(struct yaffs_obj *obj) -+{ -+ if (obj && yaffs_skip_verification(obj->my_dev)) -+ return; -+} -+ -+void yaffs_verify_obj(struct yaffs_obj *obj) -+{ -+ struct yaffs_dev *dev; -+ u32 chunk_min; -+ u32 chunk_max; -+ u32 chunk_id_ok; -+ u32 chunk_in_range; -+ u32 chunk_wrongly_deleted; -+ u32 chunk_valid; -+ -+ if (!obj) -+ return; -+ -+ if (obj->being_created) -+ return; -+ -+ dev = obj->my_dev; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ /* Check sane object header chunk */ -+ -+ chunk_min = dev->internal_start_block * dev->param.chunks_per_block; -+ chunk_max = -+ (dev->internal_end_block + 1) * dev->param.chunks_per_block - 1; -+ -+ chunk_in_range = (((unsigned)(obj->hdr_chunk)) >= chunk_min && -+ ((unsigned)(obj->hdr_chunk)) <= chunk_max); -+ chunk_id_ok = chunk_in_range || (obj->hdr_chunk == 0); -+ chunk_valid = chunk_in_range && -+ yaffs_check_chunk_bit(dev, -+ obj->hdr_chunk / dev->param.chunks_per_block, -+ obj->hdr_chunk % dev->param.chunks_per_block); -+ chunk_wrongly_deleted = chunk_in_range && !chunk_valid; -+ -+ if (!obj->fake && (!chunk_id_ok || chunk_wrongly_deleted)) -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d has chunk_id %d %s %s", -+ obj->obj_id, obj->hdr_chunk, -+ chunk_id_ok ? "" : ",out of range", -+ chunk_wrongly_deleted ? ",marked as deleted" : ""); -+ -+ if (chunk_valid && !yaffs_skip_nand_verification(dev)) { -+ struct yaffs_ext_tags tags; -+ struct yaffs_obj_hdr *oh; -+ u8 *buffer = yaffs_get_temp_buffer(dev); -+ -+ oh = (struct yaffs_obj_hdr *)buffer; -+ -+ yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, buffer, &tags); -+ -+ yaffs_verify_oh(obj, oh, &tags, 1); -+ -+ yaffs_release_temp_buffer(dev, buffer); -+ } -+ -+ /* Verify it has a parent */ -+ if (obj && !obj->fake && (!obj->parent || obj->parent->my_dev != dev)) { -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d has parent pointer %p which does not look like an object", -+ obj->obj_id, obj->parent); -+ } -+ -+ /* Verify parent is a directory */ -+ if (obj->parent && -+ obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d's parent is not a directory (type %d)", -+ obj->obj_id, obj->parent->variant_type); -+ } -+ -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ yaffs_verify_file(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ yaffs_verify_symlink(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ yaffs_verify_dir(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ yaffs_verify_link(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ yaffs_verify_special(obj); -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ default: -+ yaffs_trace(YAFFS_TRACE_VERIFY, -+ "Obj %d has illegaltype %d", -+ obj->obj_id, obj->variant_type); -+ break; -+ } -+} -+ -+void yaffs_verify_objects(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj; -+ int i; -+ struct list_head *lh; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { -+ list_for_each(lh, &dev->obj_bucket[i].list) { -+ obj = list_entry(lh, struct yaffs_obj, hash_link); -+ yaffs_verify_obj(obj); -+ } -+ } -+} -+ -+void yaffs_verify_obj_in_dir(struct yaffs_obj *obj) -+{ -+ struct list_head *lh; -+ struct yaffs_obj *list_obj; -+ int count = 0; -+ -+ if (!obj) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "No object to verify"); -+ BUG(); -+ return; -+ } -+ -+ if (yaffs_skip_verification(obj->my_dev)) -+ return; -+ -+ if (!obj->parent) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "Object does not have parent"); -+ BUG(); -+ return; -+ } -+ -+ if (obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "Parent is not directory"); -+ BUG(); -+ } -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ list_for_each(lh, &obj->parent->variant.dir_variant.children) { -+ list_obj = list_entry(lh, struct yaffs_obj, siblings); -+ yaffs_verify_obj(list_obj); -+ if (obj == list_obj) -+ count++; -+ } -+ -+ if (count != 1) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "Object in directory %d times", -+ count); -+ BUG(); -+ } -+} -+ -+void yaffs_verify_dir(struct yaffs_obj *directory) -+{ -+ struct list_head *lh; -+ struct yaffs_obj *list_obj; -+ -+ if (!directory) { -+ BUG(); -+ return; -+ } -+ -+ if (yaffs_skip_full_verification(directory->my_dev)) -+ return; -+ -+ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "Directory has wrong type: %d", -+ directory->variant_type); -+ BUG(); -+ } -+ -+ /* Iterate through the objects in each hash entry */ -+ -+ list_for_each(lh, &directory->variant.dir_variant.children) { -+ list_obj = list_entry(lh, struct yaffs_obj, siblings); -+ if (list_obj->parent != directory) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "Object in directory list has wrong parent %p", -+ list_obj->parent); -+ BUG(); -+ } -+ yaffs_verify_obj_in_dir(list_obj); -+ } -+} -+ -+static int yaffs_free_verification_failures; -+ -+void yaffs_verify_free_chunks(struct yaffs_dev *dev) -+{ -+ int counted; -+ int difference; -+ -+ if (yaffs_skip_verification(dev)) -+ return; -+ -+ counted = yaffs_count_free_chunks(dev); -+ -+ difference = dev->n_free_chunks - counted; -+ -+ if (difference) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "Freechunks verification failure %d %d %d", -+ dev->n_free_chunks, counted, difference); -+ yaffs_free_verification_failures++; -+ } -+} -+ -+int yaffs_verify_file_sane(struct yaffs_obj *in) -+{ -+ (void) in; -+ return YAFFS_OK; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.h linux-3.15-rc5/fs/yaffs2/yaffs_verify.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_verify.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,43 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_VERIFY_H__ -+#define __YAFFS_VERIFY_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_verify_blk(struct yaffs_dev *dev, struct yaffs_block_info *bi, -+ int n); -+void yaffs_verify_collected_blk(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi, int n); -+void yaffs_verify_blocks(struct yaffs_dev *dev); -+ -+void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh, -+ struct yaffs_ext_tags *tags, int parent_check); -+void yaffs_verify_file(struct yaffs_obj *obj); -+void yaffs_verify_link(struct yaffs_obj *obj); -+void yaffs_verify_symlink(struct yaffs_obj *obj); -+void yaffs_verify_special(struct yaffs_obj *obj); -+void yaffs_verify_obj(struct yaffs_obj *obj); -+void yaffs_verify_objects(struct yaffs_dev *dev); -+void yaffs_verify_obj_in_dir(struct yaffs_obj *obj); -+void yaffs_verify_dir(struct yaffs_obj *directory); -+void yaffs_verify_free_chunks(struct yaffs_dev *dev); -+ -+int yaffs_verify_file_sane(struct yaffs_obj *obj); -+ -+int yaffs_skip_verification(struct yaffs_dev *dev); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_vfs.c linux-3.15-rc5/fs/yaffs2/yaffs_vfs.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_vfs.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_vfs.c 2014-05-17 02:52:54.000000000 +0200 -@@ -0,0 +1,3604 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * Acknowledgements: -+ * Luc van OostenRyck for numerous patches. -+ * Nick Bane for numerous patches. -+ * Nick Bane for 2.5/2.6 integration. -+ * Andras Toth for mknod rdev issue. -+ * Michael Fischer for finding the problem with inode inconsistency. -+ * Some code bodily lifted from JFFS -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+/* -+ * -+ * This is the file system front-end to YAFFS that hooks it up to -+ * the VFS. -+ * -+ * Special notes: -+ * >> 2.4: sb->u.generic_sbp points to the struct yaffs_dev associated with -+ * this superblock -+ * >> 2.6: sb->s_fs_info points to the struct yaffs_dev associated with this -+ * superblock -+ * >> inode->u.generic_ip points to the associated struct yaffs_obj. -+ */ -+ -+/* -+ * There are two variants of the VFS glue code. This variant should compile -+ * for any version of Linux. -+ */ -+#include -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10)) -+#define YAFFS_COMPILE_BACKGROUND -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 23)) -+#define YAFFS_COMPILE_FREEZER -+#endif -+#endif -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)) -+#define YAFFS_COMPILE_EXPORTFS -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) -+#define YAFFS_USE_SETATTR_COPY -+#define YAFFS_USE_TRUNCATE_SETSIZE -+#endif -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) -+#define YAFFS_HAS_EVICT_INODE -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -+#define YAFFS_NEW_FOLLOW_LINK 1 -+#else -+#define YAFFS_NEW_FOLLOW_LINK 0 -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0)) -+#define YAFFS_HAS_WRITE_SUPER -+#endif -+ -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -+#include -+#endif -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39)) -+#include -+#endif -+#include -+#include -+#include -+#include -+#include -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+#include -+#endif -+ -+#ifdef YAFFS_COMPILE_EXPORTFS -+#include -+#endif -+ -+#ifdef YAFFS_COMPILE_BACKGROUND -+#include -+#include -+#endif -+#ifdef YAFFS_COMPILE_FREEZER -+#include -+#endif -+ -+#include -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ -+#include -+ -+#define UnlockPage(p) unlock_page(p) -+#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) -+ -+/* FIXME: use sb->s_id instead ? */ -+#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) -+ -+#else -+ -+#include -+#define BDEVNAME_SIZE 0 -+#define yaffs_devname(sb, buf) kdevname(sb->s_dev) -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) -+/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ -+#define __user -+#endif -+ -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) -+#define YPROC_ROOT (&proc_root) -+#else -+#define YPROC_ROOT NULL -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) -+#define Y_INIT_TIMER(a) init_timer(a) -+#else -+#define Y_INIT_TIMER(a) init_timer_on_stack(a) -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) -+#define YAFFS_USE_WRITE_BEGIN_END 1 -+#else -+#define YAFFS_USE_WRITE_BEGIN_END 0 -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0)) -+#define YAFFS_SUPER_HAS_DIRTY -+#endif -+ -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)) -+#define set_nlink(inode, count) do { (inode)->i_nlink = (count); } while(0) -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) -+static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) -+{ -+ uint64_t result = partition_size; -+ do_div(result, block_size); -+ return (uint32_t) result; -+} -+#else -+#define YCALCBLOCKS(s, b) ((s)/(b)) -+#endif -+ -+#include -+#include -+ -+#include "yportenv.h" -+#include "yaffs_trace.h" -+#include "yaffs_guts.h" -+#include "yaffs_attribs.h" -+ -+#include "yaffs_linux.h" -+ -+#include "yaffs_mtdif.h" -+#include "yaffs_packedtags2.h" -+#include "yaffs_getblockinfo.h" -+ -+unsigned int yaffs_trace_mask = -+ YAFFS_TRACE_BAD_BLOCKS | -+ YAFFS_TRACE_ALWAYS | -+ 0; -+ -+unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; -+unsigned int yaffs_auto_checkpoint = 1; -+unsigned int yaffs_gc_control = 1; -+unsigned int yaffs_bg_enable = 1; -+unsigned int yaffs_auto_select = 1; -+/* Module Parameters */ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+module_param(yaffs_trace_mask, uint, 0644); -+module_param(yaffs_wr_attempts, uint, 0644); -+module_param(yaffs_auto_checkpoint, uint, 0644); -+module_param(yaffs_gc_control, uint, 0644); -+module_param(yaffs_bg_enable, uint, 0644); -+#else -+MODULE_PARM(yaffs_trace_mask, "i"); -+MODULE_PARM(yaffs_wr_attempts, "i"); -+MODULE_PARM(yaffs_auto_checkpoint, "i"); -+MODULE_PARM(yaffs_gc_control, "i"); -+#endif -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) -+/* use iget and read_inode */ -+#define Y_IGET(sb, inum) iget((sb), (inum)) -+ -+#else -+/* Call local equivalent */ -+#define YAFFS_USE_OWN_IGET -+#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) -+ -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) -+#define yaffs_inode_to_obj_lv(iptr) ((iptr)->i_private) -+#else -+#define yaffs_inode_to_obj_lv(iptr) ((iptr)->u.generic_ip) -+#endif -+ -+#define yaffs_inode_to_obj(iptr) \ -+ ((struct yaffs_obj *)(yaffs_inode_to_obj_lv(iptr))) -+#define yaffs_dentry_to_obj(dptr) yaffs_inode_to_obj((dptr)->d_inode) -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+#define yaffs_super_to_dev(sb) ((struct yaffs_dev *)sb->s_fs_info) -+#else -+#define yaffs_super_to_dev(sb) ((struct yaffs_dev *)sb->u.generic_sbp) -+#endif -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)) -+#define Y_CLEAR_INODE(i) clear_inode(i) -+#else -+#define Y_CLEAR_INODE(i) end_writeback(i) -+#endif -+ -+ -+#define update_dir_time(dir) do {\ -+ (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \ -+ } while (0) -+ -+static void yaffs_fill_inode_from_obj(struct inode *inode, -+ struct yaffs_obj *obj); -+ -+ -+static void yaffs_gross_lock(struct yaffs_dev *dev) -+{ -+ yaffs_trace(YAFFS_TRACE_LOCK, "yaffs locking %p", current); -+ mutex_lock(&(yaffs_dev_to_lc(dev)->gross_lock)); -+ yaffs_trace(YAFFS_TRACE_LOCK, "yaffs locked %p", current); -+} -+ -+static void yaffs_gross_unlock(struct yaffs_dev *dev) -+{ -+ yaffs_trace(YAFFS_TRACE_LOCK, "yaffs unlocking %p", current); -+ mutex_unlock(&(yaffs_dev_to_lc(dev)->gross_lock)); -+} -+ -+ -+static int yaffs_readpage_nolock(struct file *f, struct page *pg) -+{ -+ /* Lifted from jffs2 */ -+ -+ struct yaffs_obj *obj; -+ unsigned char *pg_buf; -+ int ret; -+ loff_t pos = ((loff_t) pg->index) << PAGE_CACHE_SHIFT; -+ struct yaffs_dev *dev; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readpage_nolock at %lld, size %08x", -+ (long long)pos, -+ (unsigned)PAGE_CACHE_SIZE); -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ BUG_ON(!PageLocked(pg)); -+#else -+ if (!PageLocked(pg)) -+ PAGE_BUG(pg); -+#endif -+ -+ pg_buf = kmap(pg); -+ /* FIXME: Can kmap fail? */ -+ -+ yaffs_gross_lock(dev); -+ -+ ret = yaffs_file_rd(obj, pg_buf, pos, PAGE_CACHE_SIZE); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (ret >= 0) -+ ret = 0; -+ -+ if (ret) { -+ ClearPageUptodate(pg); -+ SetPageError(pg); -+ } else { -+ SetPageUptodate(pg); -+ ClearPageError(pg); -+ } -+ -+ flush_dcache_page(pg); -+ kunmap(pg); -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_readpage_nolock done"); -+ return ret; -+} -+ -+static int yaffs_readpage_unlock(struct file *f, struct page *pg) -+{ -+ int ret = yaffs_readpage_nolock(f, pg); -+ UnlockPage(pg); -+ return ret; -+} -+ -+static int yaffs_readpage(struct file *f, struct page *pg) -+{ -+ int ret; -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_readpage"); -+ ret = yaffs_readpage_unlock(f, pg); -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_readpage done"); -+ return ret; -+} -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)) -+#define YCRED_FSUID() from_kuid(&init_user_ns, current_fsuid()) -+#define YCRED_FSGID() from_kgid(&init_user_ns, current_fsgid()) -+#else -+#define YCRED_FSUID() YCRED(current)->fsuid -+#define YCRED_FSGID() YCRED(current)->fsgid -+ -+static inline uid_t i_uid_read(const struct inode *inode) -+{ -+ return inode->i_uid; -+} -+ -+static inline gid_t i_gid_read(const struct inode *inode) -+{ -+ return inode->i_gid; -+} -+ -+static inline void i_uid_write(struct inode *inode, uid_t uid) -+{ -+ inode->i_uid = uid; -+} -+ -+static inline void i_gid_write(struct inode *inode, gid_t gid) -+{ -+ inode->i_gid = gid; -+} -+#endif -+ -+static void yaffs_set_super_dirty_val(struct yaffs_dev *dev, int val) -+{ -+ struct yaffs_linux_context *lc = yaffs_dev_to_lc(dev); -+ -+ if (lc) -+ lc->dirty = val; -+ -+# ifdef YAFFS_SUPER_HAS_DIRTY -+ { -+ struct super_block *sb = lc->super; -+ -+ if (sb) -+ sb->s_dirt = val; -+ } -+#endif -+ -+} -+ -+static void yaffs_set_super_dirty(struct yaffs_dev *dev) -+{ -+ yaffs_set_super_dirty_val(dev, 1); -+} -+ -+static void yaffs_clear_super_dirty(struct yaffs_dev *dev) -+{ -+ yaffs_set_super_dirty_val(dev, 0); -+} -+ -+static int yaffs_check_super_dirty(struct yaffs_dev *dev) -+{ -+ struct yaffs_linux_context *lc = yaffs_dev_to_lc(dev); -+ -+ if (lc && lc->dirty) -+ return 1; -+ -+# ifdef YAFFS_SUPER_HAS_DIRTY -+ { -+ struct super_block *sb = lc->super; -+ -+ if (sb && sb->s_dirt) -+ return 1; -+ } -+#endif -+ return 0; -+ -+} -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_writepage(struct page *page, struct writeback_control *wbc) -+#else -+static int yaffs_writepage(struct page *page) -+#endif -+{ -+ struct yaffs_dev *dev; -+ struct address_space *mapping = page->mapping; -+ struct inode *inode; -+ unsigned long end_index; -+ char *buffer; -+ struct yaffs_obj *obj; -+ int n_written = 0; -+ unsigned n_bytes; -+ loff_t i_size; -+ -+ if (!mapping) -+ BUG(); -+ inode = mapping->host; -+ if (!inode) -+ BUG(); -+ i_size = i_size_read(inode); -+ -+ end_index = i_size >> PAGE_CACHE_SHIFT; -+ -+ if (page->index < end_index) -+ n_bytes = PAGE_CACHE_SIZE; -+ else { -+ n_bytes = i_size & (PAGE_CACHE_SIZE - 1); -+ -+ if (page->index > end_index || !n_bytes) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_writepage at %lld, inode size = %lld!!", -+ ((loff_t)page->index) << PAGE_CACHE_SHIFT, -+ inode->i_size); -+ yaffs_trace(YAFFS_TRACE_OS, -+ " -> don't care!!"); -+ -+ zero_user_segment(page, 0, PAGE_CACHE_SIZE); -+ set_page_writeback(page); -+ unlock_page(page); -+ end_page_writeback(page); -+ return 0; -+ } -+ } -+ -+ if (n_bytes != PAGE_CACHE_SIZE) -+ zero_user_segment(page, n_bytes, PAGE_CACHE_SIZE); -+ -+ get_page(page); -+ -+ buffer = kmap(page); -+ -+ obj = yaffs_inode_to_obj(inode); -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_writepage at %lld, size %08x", -+ ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes); -+ yaffs_trace(YAFFS_TRACE_OS, -+ "writepag0: obj = %lld, ino = %lld", -+ obj->variant.file_variant.file_size, inode->i_size); -+ -+ n_written = yaffs_wr_file(obj, buffer, -+ ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes, 0); -+ -+ yaffs_set_super_dirty(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "writepag1: obj = %lld, ino = %lld", -+ obj->variant.file_variant.file_size, inode->i_size); -+ -+ yaffs_gross_unlock(dev); -+ -+ kunmap(page); -+ set_page_writeback(page); -+ unlock_page(page); -+ end_page_writeback(page); -+ put_page(page); -+ -+ return (n_written == n_bytes) ? 0 : -ENOSPC; -+} -+ -+/* Space holding and freeing is done to ensure we have space available for write_begin/end */ -+/* For now we just assume few parallel writes and check against a small number. */ -+/* Todo: need to do this with a counter to handle parallel reads better */ -+ -+static ssize_t yaffs_hold_space(struct file *f) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ -+ int n_free_chunks; -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ n_free_chunks = yaffs_get_n_free_chunks(dev); -+ -+ yaffs_gross_unlock(dev); -+ -+ return (n_free_chunks > 20) ? 1 : 0; -+} -+ -+static void yaffs_release_space(struct file *f) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_gross_unlock(dev); -+} -+ -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+static int yaffs_write_begin(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned flags, -+ struct page **pagep, void **fsdata) -+{ -+ struct page *pg = NULL; -+ pgoff_t index = pos >> PAGE_CACHE_SHIFT; -+ -+ int ret = 0; -+ int space_held = 0; -+ -+ /* Get a page */ -+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) -+ pg = grab_cache_page_write_begin(mapping, index, flags); -+#else -+ pg = __grab_cache_page(mapping, index); -+#endif -+ -+ *pagep = pg; -+ if (!pg) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ yaffs_trace(YAFFS_TRACE_OS, -+ "start yaffs_write_begin index %d(%x) uptodate %d", -+ (int)index, (int)index, Page_Uptodate(pg) ? 1 : 0); -+ -+ /* Get fs space */ -+ space_held = yaffs_hold_space(filp); -+ -+ if (!space_held) { -+ ret = -ENOSPC; -+ goto out; -+ } -+ -+ /* Update page if required */ -+ -+ if (!Page_Uptodate(pg)) -+ ret = yaffs_readpage_nolock(filp, pg); -+ -+ if (ret) -+ goto out; -+ -+ /* Happy path return */ -+ yaffs_trace(YAFFS_TRACE_OS, "end yaffs_write_begin - ok"); -+ -+ return 0; -+ -+out: -+ yaffs_trace(YAFFS_TRACE_OS, -+ "end yaffs_write_begin fail returning %d", ret); -+ if (space_held) -+ yaffs_release_space(filp); -+ if (pg) { -+ unlock_page(pg); -+ page_cache_release(pg); -+ } -+ return ret; -+} -+ -+#else -+ -+static int yaffs_prepare_write(struct file *f, struct page *pg, -+ unsigned offset, unsigned to) -+{ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_prepair_write"); -+ -+ if (!Page_Uptodate(pg)) -+ return yaffs_readpage_nolock(f, pg); -+ return 0; -+} -+#endif -+ -+ -+static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, -+ loff_t * pos) -+{ -+ struct yaffs_obj *obj; -+ int n_written; -+ loff_t ipos; -+ struct inode *inode; -+ struct yaffs_dev *dev; -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ -+ if (!obj) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_file_write: hey obj is null!"); -+ return -EINVAL; -+ } -+ -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ inode = f->f_dentry->d_inode; -+ -+ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) -+ ipos = inode->i_size; -+ else -+ ipos = *pos; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_file_write about to write writing %u(%x) bytes to object %d at %lld", -+ (unsigned)n, (unsigned)n, obj->obj_id, ipos); -+ -+ n_written = yaffs_wr_file(obj, buf, ipos, n, 0); -+ -+ yaffs_set_super_dirty(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_file_write: %d(%x) bytes written", -+ (unsigned)n, (unsigned)n); -+ -+ if (n_written > 0) { -+ ipos += n_written; -+ *pos = ipos; -+ if (ipos > inode->i_size) { -+ inode->i_size = ipos; -+ inode->i_blocks = (ipos + 511) >> 9; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_file_write size updated to %lld bytes, %d blocks", -+ ipos, (int)(inode->i_blocks)); -+ } -+ -+ } -+ yaffs_gross_unlock(dev); -+ return (n_written == 0) && (n > 0) ? -ENOSPC : n_written; -+} -+ -+ -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+static int yaffs_write_end(struct file *filp, struct address_space *mapping, -+ loff_t pos, unsigned len, unsigned copied, -+ struct page *pg, void *fsdadata) -+{ -+ int ret = 0; -+ void *addr, *kva; -+ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); -+ -+ kva = kmap(pg); -+ addr = kva + offset_into_page; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_write_end addr %p pos %lld n_bytes %d", -+ addr, pos, copied); -+ -+ ret = yaffs_file_write(filp, addr, copied, &pos); -+ -+ if (ret != copied) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_write_end not same size ret %d copied %d", -+ ret, copied); -+ SetPageError(pg); -+ } -+ -+ kunmap(pg); -+ -+ yaffs_release_space(filp); -+ unlock_page(pg); -+ page_cache_release(pg); -+ return ret; -+} -+#else -+ -+static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, -+ unsigned to) -+{ -+ void *addr, *kva; -+ -+ loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; -+ int n_bytes = to - offset; -+ int n_written; -+ -+ kva = kmap(pg); -+ addr = kva + offset; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_commit_write addr %p pos %lld n_bytes %d", -+ addr, pos, n_bytes); -+ -+ n_written = yaffs_file_write(f, addr, n_bytes, &pos); -+ -+ if (n_written != n_bytes) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_commit_write not same size n_written %d n_bytes %d", -+ n_written, n_bytes); -+ SetPageError(pg); -+ } -+ kunmap(pg); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_commit_write returning %d", -+ n_written == n_bytes ? 0 : n_written); -+ -+ return n_written == n_bytes ? 0 : n_written; -+} -+#endif -+ -+static struct address_space_operations yaffs_file_address_operations = { -+ .readpage = yaffs_readpage, -+ .writepage = yaffs_writepage, -+#if (YAFFS_USE_WRITE_BEGIN_END > 0) -+ .write_begin = yaffs_write_begin, -+ .write_end = yaffs_write_end, -+#else -+ .prepare_write = yaffs_prepare_write, -+ .commit_write = yaffs_commit_write, -+#endif -+}; -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_file_flush(struct file *file, fl_owner_t id) -+#else -+static int yaffs_file_flush(struct file *file) -+#endif -+{ -+ struct yaffs_obj *obj = yaffs_dentry_to_obj(file->f_dentry); -+ -+ struct yaffs_dev *dev = obj->my_dev; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_file_flush object %d (%s)", -+ obj->obj_id, -+ obj->dirty ? "dirty" : "clean"); -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_flush_file(obj, 1, 0); -+ -+ yaffs_gross_unlock(dev); -+ -+ return 0; -+} -+ -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) -+static int yaffs_sync_object(struct file *file, loff_t start, loff_t end, int datasync) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) -+static int yaffs_sync_object(struct file *file, int datasync) -+#else -+static int yaffs_sync_object(struct file *file, struct dentry *dentry, -+ int datasync) -+#endif -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) -+ struct dentry *dentry = file->f_path.dentry; -+#endif -+ -+ obj = yaffs_dentry_to_obj(dentry); -+ -+ dev = obj->my_dev; -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, -+ "yaffs_sync_object"); -+ yaffs_gross_lock(dev); -+ yaffs_flush_file(obj, 1, datasync); -+ yaffs_gross_unlock(dev); -+ return 0; -+} -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) -+static const struct file_operations yaffs_file_operations = { -+ .read = do_sync_read, -+ .write = do_sync_write, -+ .aio_read = generic_file_aio_read, -+ .aio_write = generic_file_aio_write, -+ .mmap = generic_file_mmap, -+ .flush = yaffs_file_flush, -+ .fsync = yaffs_sync_object, -+ .splice_read = generic_file_splice_read, -+ .splice_write = generic_file_splice_write, -+ .llseek = generic_file_llseek, -+}; -+ -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) -+ -+static const struct file_operations yaffs_file_operations = { -+ .read = do_sync_read, -+ .write = do_sync_write, -+ .aio_read = generic_file_aio_read, -+ .aio_write = generic_file_aio_write, -+ .mmap = generic_file_mmap, -+ .flush = yaffs_file_flush, -+ .fsync = yaffs_sync_object, -+ .sendfile = generic_file_sendfile, -+}; -+ -+#else -+ -+static const struct file_operations yaffs_file_operations = { -+ .read = generic_file_read, -+ .write = generic_file_write, -+ .mmap = generic_file_mmap, -+ .flush = yaffs_file_flush, -+ .fsync = yaffs_sync_object, -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ .sendfile = generic_file_sendfile, -+#endif -+}; -+#endif -+ -+ -+ -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) -+static void zero_user_segment(struct page *page, unsigned start, unsigned end) -+{ -+ void *kaddr = kmap_atomic(page, KM_USER0); -+ memset(kaddr + start, 0, end - start); -+ kunmap_atomic(kaddr, KM_USER0); -+ flush_dcache_page(page); -+} -+#endif -+ -+ -+static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize) -+{ -+#ifdef YAFFS_USE_TRUNCATE_SETSIZE -+ truncate_setsize(inode, newsize); -+ return 0; -+#else -+ truncate_inode_pages(&inode->i_data, newsize); -+ return 0; -+#endif -+ -+} -+ -+ -+static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr) -+{ -+#ifdef YAFFS_USE_SETATTR_COPY -+ setattr_copy(inode, attr); -+ return 0; -+#else -+ return inode_setattr(inode, attr); -+#endif -+ -+} -+ -+static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ struct yaffs_dev *dev; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_setattr of object %d", -+ yaffs_inode_to_obj(inode)->obj_id); -+#if 0 -+ /* Fail if a requested resize >= 2GB */ -+ if (attr->ia_valid & ATTR_SIZE && (attr->ia_size >> 31)) -+ error = -EINVAL; -+#endif -+ -+ if (error == 0) -+ error = inode_change_ok(inode, attr); -+ if (error == 0) { -+ int result; -+ if (!error) { -+ error = yaffs_vfs_setattr(inode, attr); -+ yaffs_trace(YAFFS_TRACE_OS, "inode_setattr called"); -+ if (attr->ia_valid & ATTR_SIZE) { -+ yaffs_vfs_setsize(inode, attr->ia_size); -+ inode->i_blocks = (inode->i_size + 511) >> 9; -+ } -+ } -+ dev = yaffs_inode_to_obj(inode)->my_dev; -+ if (attr->ia_valid & ATTR_SIZE) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "resize to %d(%x)", -+ (int)(attr->ia_size), -+ (int)(attr->ia_size)); -+ } -+ yaffs_gross_lock(dev); -+ result = yaffs_set_attribs(yaffs_inode_to_obj(inode), attr); -+ if (result == YAFFS_OK) { -+ error = 0; -+ } else { -+ error = -EPERM; -+ } -+ yaffs_gross_unlock(dev); -+ -+ } -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_setattr done returning %d", error); -+ -+ return error; -+} -+ -+static int yaffs_setxattr(struct dentry *dentry, const char *name, -+ const void *value, size_t size, int flags) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ struct yaffs_dev *dev; -+ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_setxattr of object %d", obj->obj_id); -+ -+ if (error == 0) { -+ int result; -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ result = yaffs_set_xattrib(obj, name, value, size, flags); -+ if (result == YAFFS_OK) -+ error = 0; -+ else if (result < 0) -+ error = result; -+ yaffs_gross_unlock(dev); -+ -+ } -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_setxattr done returning %d", error); -+ -+ return error; -+} -+ -+static ssize_t yaffs_getxattr(struct dentry * dentry, const char *name, -+ void *buff, size_t size) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ struct yaffs_dev *dev; -+ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_getxattr \"%s\" from object %d", -+ name, obj->obj_id); -+ -+ if (error == 0) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ error = yaffs_get_xattrib(obj, name, buff, size); -+ yaffs_gross_unlock(dev); -+ -+ } -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_getxattr done returning %d", error); -+ -+ return error; -+} -+ -+static int yaffs_removexattr(struct dentry *dentry, const char *name) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ struct yaffs_dev *dev; -+ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_removexattr of object %d", obj->obj_id); -+ -+ if (error == 0) { -+ int result; -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ result = yaffs_remove_xattrib(obj, name); -+ if (result == YAFFS_OK) -+ error = 0; -+ else if (result < 0) -+ error = result; -+ yaffs_gross_unlock(dev); -+ -+ } -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_removexattr done returning %d", error); -+ -+ return error; -+} -+ -+static ssize_t yaffs_listxattr(struct dentry * dentry, char *buff, size_t size) -+{ -+ struct inode *inode = dentry->d_inode; -+ int error = 0; -+ struct yaffs_dev *dev; -+ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_listxattr of object %d", obj->obj_id); -+ -+ if (error == 0) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ error = yaffs_list_xattrib(obj, buff, size); -+ yaffs_gross_unlock(dev); -+ -+ } -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_listxattr done returning %d", error); -+ -+ return error; -+} -+ -+ -+static const struct inode_operations yaffs_file_inode_operations = { -+ .setattr = yaffs_setattr, -+ .setxattr = yaffs_setxattr, -+ .getxattr = yaffs_getxattr, -+ .listxattr = yaffs_listxattr, -+ .removexattr = yaffs_removexattr, -+}; -+ -+ -+static int yaffs_readlink(struct dentry *dentry, char __user * buffer, -+ int buflen) -+{ -+ unsigned char *alias; -+ int ret; -+ -+ struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (!alias) -+ return -ENOMEM; -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)) -+ ret = readlink_copy(buffer, buflen, alias); -+#else -+ ret = vfs_readlink(dentry, buffer, buflen, alias); -+#endif -+ kfree(alias); -+ return ret; -+} -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -+{ -+ void *ret; -+#else -+static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -+{ -+ int ret -+#endif -+ unsigned char *alias; -+ int ret_int = 0; -+ struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); -+ yaffs_gross_unlock(dev); -+ -+ if (!alias) { -+ ret_int = -ENOMEM; -+ goto out; -+ } -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+ nd_set_link(nd, alias); -+ ret = alias; -+out: -+ if (ret_int) -+ ret = ERR_PTR(ret_int); -+ return ret; -+#else -+ ret = vfs_follow_link(nd, alias); -+ kfree(alias); -+out: -+ if (ret_int) -+ ret = ret_int; -+ return ret; -+#endif -+} -+ -+ -+#ifdef YAFFS_HAS_PUT_INODE -+ -+/* For now put inode is just for debugging -+ * Put inode is called when the inode **structure** is put. -+ */ -+static void yaffs_put_inode(struct inode *inode) -+{ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_put_inode: ino %d, count %d"), -+ (int)inode->i_ino, atomic_read(&inode->i_count); -+ -+} -+#endif -+ -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias) -+{ -+ kfree(alias); -+} -+#endif -+ -+static const struct inode_operations yaffs_symlink_inode_operations = { -+ .readlink = yaffs_readlink, -+ .follow_link = yaffs_follow_link, -+#if (YAFFS_NEW_FOLLOW_LINK == 1) -+ .put_link = yaffs_put_link, -+#endif -+ .setattr = yaffs_setattr, -+ .setxattr = yaffs_setxattr, -+ .getxattr = yaffs_getxattr, -+ .listxattr = yaffs_listxattr, -+ .removexattr = yaffs_removexattr, -+}; -+ -+#ifdef YAFFS_USE_OWN_IGET -+ -+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) -+{ -+ struct inode *inode; -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev = yaffs_super_to_dev(sb); -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_iget for %lu", ino); -+ -+ inode = iget_locked(sb, ino); -+ if (!inode) -+ return ERR_PTR(-ENOMEM); -+ if (!(inode->i_state & I_NEW)) -+ return inode; -+ -+ /* NB This is called as a side effect of other functions, but -+ * we had to release the lock to prevent deadlocks, so -+ * need to lock again. -+ */ -+ -+ yaffs_gross_lock(dev); -+ -+ obj = yaffs_find_by_number(dev, inode->i_ino); -+ -+ yaffs_fill_inode_from_obj(inode, obj); -+ -+ yaffs_gross_unlock(dev); -+ -+ unlock_new_inode(inode); -+ return inode; -+} -+ -+#else -+ -+static void yaffs_read_inode(struct inode *inode) -+{ -+ /* NB This is called as a side effect of other functions, but -+ * we had to release the lock to prevent deadlocks, so -+ * need to lock again. -+ */ -+ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev = yaffs_super_to_dev(inode->i_sb); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_read_inode for %d", (int)inode->i_ino); -+ -+ if (current != yaffs_dev_to_lc(dev)->readdir_process) -+ yaffs_gross_lock(dev); -+ -+ obj = yaffs_find_by_number(dev, inode->i_ino); -+ -+ yaffs_fill_inode_from_obj(inode, obj); -+ -+ if (current != yaffs_dev_to_lc(dev)->readdir_process) -+ yaffs_gross_unlock(dev); -+} -+ -+#endif -+ -+ -+ -+struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, -+ struct yaffs_obj *obj) -+{ -+ struct inode *inode; -+ -+ if (!sb) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_get_inode for NULL super_block!!"); -+ return NULL; -+ -+ } -+ -+ if (!obj) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_get_inode for NULL object!!"); -+ return NULL; -+ -+ } -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_get_inode for object %d", obj->obj_id); -+ -+ inode = Y_IGET(sb, obj->obj_id); -+ if (IS_ERR(inode)) -+ return NULL; -+ -+ /* NB Side effect: iget calls back to yaffs_read_inode(). */ -+ /* iget also increments the inode's i_count */ -+ /* NB You can't be holding gross_lock or deadlock will happen! */ -+ -+ return inode; -+} -+ -+ -+ -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) -+#define YCRED(x) x -+#else -+#define YCRED(x) (x->cred) -+#endif -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, -+ dev_t rdev) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ dev_t rdev) -+#else -+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ int rdev) -+#endif -+{ -+ struct inode *inode; -+ -+ struct yaffs_obj *obj = NULL; -+ struct yaffs_dev *dev; -+ -+ struct yaffs_obj *parent = yaffs_inode_to_obj(dir); -+ -+ int error = -ENOSPC; -+ uid_t uid = YCRED_FSUID(); -+ gid_t gid = -+ (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID(); -+ -+ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) -+ mode |= S_ISGID; -+ -+ if (parent) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_mknod: parent object %d type %d", -+ parent->obj_id, parent->variant_type); -+ } else { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_mknod: could not get parent object"); -+ return -EPERM; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_mknod: making oject for %s, mode %x dev %x", -+ dentry->d_name.name, mode, rdev); -+ -+ dev = parent->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ switch (mode & S_IFMT) { -+ default: -+ /* Special (socket, fifo, device...) */ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making special"); -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ obj = -+ yaffs_create_special(parent, dentry->d_name.name, mode, uid, -+ gid, old_encode_dev(rdev)); -+#else -+ obj = -+ yaffs_create_special(parent, dentry->d_name.name, mode, uid, -+ gid, rdev); -+#endif -+ break; -+ case S_IFREG: /* file */ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making file"); -+ obj = yaffs_create_file(parent, dentry->d_name.name, mode, uid, -+ gid); -+ break; -+ case S_IFDIR: /* directory */ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making directory"); -+ obj = yaffs_create_dir(parent, dentry->d_name.name, mode, -+ uid, gid); -+ break; -+ case S_IFLNK: /* symlink */ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making symlink"); -+ obj = NULL; /* Do we ever get here? */ -+ break; -+ } -+ -+ /* Can not call yaffs_get_inode() with gross lock held */ -+ yaffs_gross_unlock(dev); -+ -+ if (obj) { -+ inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); -+ d_instantiate(dentry, inode); -+ update_dir_time(dir); -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_mknod created object %d count = %d", -+ obj->obj_id, atomic_read(&inode->i_count)); -+ error = 0; -+ yaffs_fill_inode_from_obj(dir, parent); -+ } else { -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod failed making object"); -+ error = -ENOMEM; -+ } -+ -+ return error; -+} -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) -+static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) -+#else -+static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) -+#endif -+{ -+ int ret_val; -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mkdir"); -+ ret_val = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); -+ return ret_val; -+} -+ -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)) -+static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode, -+ bool dummy) -+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) -+static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode, -+ struct nameidata *n) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, -+ struct nameidata *n) -+#else -+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) -+#endif -+{ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_create"); -+ return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); -+} -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)) -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -+ unsigned int dummy) -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, -+ struct nameidata *n) -+#else -+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) -+#endif -+{ -+ struct yaffs_obj *obj; -+ struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ -+ -+ struct yaffs_dev *dev = yaffs_inode_to_obj(dir)->my_dev; -+ -+ if (current != yaffs_dev_to_lc(dev)->readdir_process) -+ yaffs_gross_lock(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_lookup for %d:%s", -+ yaffs_inode_to_obj(dir)->obj_id, dentry->d_name.name); -+ -+ obj = yaffs_find_by_name(yaffs_inode_to_obj(dir), dentry->d_name.name); -+ -+ obj = yaffs_get_equivalent_obj(obj); /* in case it was a hardlink */ -+ -+ /* Can't hold gross lock when calling yaffs_get_inode() */ -+ if (current != yaffs_dev_to_lc(dev)->readdir_process) -+ yaffs_gross_unlock(dev); -+ -+ if (obj) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_lookup found %d", obj->obj_id); -+ -+ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); -+ } else { -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_lookup not found"); -+ -+ } -+ -+/* added NCB for 2.5/6 compatability - forces add even if inode is -+ * NULL which creates dentry hash */ -+ d_add(dentry, inode); -+ -+ return NULL; -+} -+ -+/* -+ * Create a link... -+ */ -+static int yaffs_link(struct dentry *old_dentry, struct inode *dir, -+ struct dentry *dentry) -+{ -+ struct inode *inode = old_dentry->d_inode; -+ struct yaffs_obj *obj = NULL; -+ struct yaffs_obj *link = NULL; -+ struct yaffs_dev *dev; -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_link"); -+ -+ obj = yaffs_inode_to_obj(inode); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ -+ link = -+ yaffs_link_obj(yaffs_inode_to_obj(dir), dentry->d_name.name, -+ obj); -+ -+ if (link) { -+ set_nlink(old_dentry->d_inode, yaffs_get_obj_link_count(obj)); -+ d_instantiate(dentry, old_dentry->d_inode); -+ atomic_inc(&old_dentry->d_inode->i_count); -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_link link count %d i_count %d", -+ old_dentry->d_inode->i_nlink, -+ atomic_read(&old_dentry->d_inode->i_count)); -+ } -+ -+ yaffs_gross_unlock(dev); -+ -+ if (link) { -+ update_dir_time(dir); -+ return 0; -+ } -+ -+ return -EPERM; -+} -+ -+static int yaffs_symlink(struct inode *dir, struct dentry *dentry, -+ const char *symname) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ uid_t uid = YCRED_FSUID(); -+ gid_t gid = -+ (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID(); -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_symlink"); -+ -+ if (strnlen(dentry->d_name.name, YAFFS_MAX_NAME_LENGTH + 1) > -+ YAFFS_MAX_NAME_LENGTH) -+ return -ENAMETOOLONG; -+ -+ if (strnlen(symname, YAFFS_MAX_ALIAS_LENGTH + 1) > -+ YAFFS_MAX_ALIAS_LENGTH) -+ return -ENAMETOOLONG; -+ -+ dev = yaffs_inode_to_obj(dir)->my_dev; -+ yaffs_gross_lock(dev); -+ obj = yaffs_create_symlink(yaffs_inode_to_obj(dir), dentry->d_name.name, -+ S_IFLNK | S_IRWXUGO, uid, gid, symname); -+ yaffs_gross_unlock(dev); -+ -+ if (obj) { -+ struct inode *inode; -+ -+ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); -+ d_instantiate(dentry, inode); -+ update_dir_time(dir); -+ yaffs_trace(YAFFS_TRACE_OS, "symlink created OK"); -+ return 0; -+ } else { -+ yaffs_trace(YAFFS_TRACE_OS, "symlink not created"); -+ } -+ -+ return -ENOMEM; -+} -+ -+/* -+ * The VFS layer already does all the dentry stuff for rename. -+ * -+ * NB: POSIX says you can rename an object over an old object of the same name -+ */ -+static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, -+ struct inode *new_dir, struct dentry *new_dentry) -+{ -+ struct yaffs_dev *dev; -+ int ret_val = YAFFS_FAIL; -+ struct yaffs_obj *target; -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_rename"); -+ dev = yaffs_inode_to_obj(old_dir)->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ /* Check if the target is an existing directory that is not empty. */ -+ target = yaffs_find_by_name(yaffs_inode_to_obj(new_dir), -+ new_dentry->d_name.name); -+ -+ if (target && target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && -+ !list_empty(&target->variant.dir_variant.children)) { -+ -+ yaffs_trace(YAFFS_TRACE_OS, "target is non-empty dir"); -+ -+ ret_val = YAFFS_FAIL; -+ } else { -+ /* Now does unlinking internally using shadowing mechanism */ -+ yaffs_trace(YAFFS_TRACE_OS, "calling yaffs_rename_obj"); -+ -+ ret_val = yaffs_rename_obj(yaffs_inode_to_obj(old_dir), -+ old_dentry->d_name.name, -+ yaffs_inode_to_obj(new_dir), -+ new_dentry->d_name.name); -+ } -+ yaffs_gross_unlock(dev); -+ -+ if (ret_val == YAFFS_OK) { -+ if (target) -+ inode_dec_link_count(new_dentry->d_inode); -+ -+ update_dir_time(old_dir); -+ if (old_dir != new_dir) -+ update_dir_time(new_dir); -+ return 0; -+ } else { -+ return -ENOTEMPTY; -+ } -+} -+ -+ -+ -+ -+static int yaffs_unlink(struct inode *dir, struct dentry *dentry) -+{ -+ int ret_val; -+ -+ struct yaffs_dev *dev; -+ struct yaffs_obj *obj; -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_unlink %d:%s", -+ (int)(dir->i_ino), dentry->d_name.name); -+ obj = yaffs_inode_to_obj(dir); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ ret_val = yaffs_unlinker(obj, dentry->d_name.name); -+ -+ if (ret_val == YAFFS_OK) { -+ inode_dec_link_count(dentry->d_inode); -+ dir->i_version++; -+ yaffs_gross_unlock(dev); -+ update_dir_time(dir); -+ return 0; -+ } -+ yaffs_gross_unlock(dev); -+ return -ENOTEMPTY; -+} -+ -+ -+ -+static const struct inode_operations yaffs_dir_inode_operations = { -+ .create = yaffs_create, -+ .lookup = yaffs_lookup, -+ .link = yaffs_link, -+ .unlink = yaffs_unlink, -+ .symlink = yaffs_symlink, -+ .mkdir = yaffs_mkdir, -+ .rmdir = yaffs_unlink, -+ .mknod = yaffs_mknod, -+ .rename = yaffs_rename, -+ .setattr = yaffs_setattr, -+ .setxattr = yaffs_setxattr, -+ .getxattr = yaffs_getxattr, -+ .listxattr = yaffs_listxattr, -+ .removexattr = yaffs_removexattr, -+}; -+ -+/*-----------------------------------------------------------------*/ -+/* Directory search context allows us to unlock access to yaffs during -+ * filldir without causing problems with the directory being modified. -+ * This is similar to the tried and tested mechanism used in yaffs direct. -+ * -+ * A search context iterates along a doubly linked list of siblings in the -+ * directory. If the iterating object is deleted then this would corrupt -+ * the list iteration, likely causing a crash. The search context avoids -+ * this by using the remove_obj_fn to move the search context to the -+ * next object before the object is deleted. -+ * -+ * Many readdirs (and thus seach conexts) may be alive simulateously so -+ * each struct yaffs_dev has a list of these. -+ * -+ * A seach context lives for the duration of a readdir. -+ * -+ * All these functions must be called while yaffs is locked. -+ */ -+ -+struct yaffs_search_context { -+ struct yaffs_dev *dev; -+ struct yaffs_obj *dir_obj; -+ struct yaffs_obj *next_return; -+ struct list_head others; -+}; -+ -+/* -+ * yaffs_new_search() creates a new search context, initialises it and -+ * adds it to the device's search context list. -+ * -+ * Called at start of readdir. -+ */ -+static struct yaffs_search_context *yaffs_new_search(struct yaffs_obj *dir) -+{ -+ struct yaffs_dev *dev = dir->my_dev; -+ struct yaffs_search_context *sc = -+ kmalloc(sizeof(struct yaffs_search_context), GFP_NOFS); -+ if (sc) { -+ sc->dir_obj = dir; -+ sc->dev = dev; -+ if (list_empty(&sc->dir_obj->variant.dir_variant.children)) -+ sc->next_return = NULL; -+ else -+ sc->next_return = -+ list_entry(dir->variant.dir_variant.children.next, -+ struct yaffs_obj, siblings); -+ INIT_LIST_HEAD(&sc->others); -+ list_add(&sc->others, &(yaffs_dev_to_lc(dev)->search_contexts)); -+ } -+ return sc; -+} -+ -+/* -+ * yaffs_search_end() disposes of a search context and cleans up. -+ */ -+static void yaffs_search_end(struct yaffs_search_context *sc) -+{ -+ if (sc) { -+ list_del(&sc->others); -+ kfree(sc); -+ } -+} -+ -+/* -+ * yaffs_search_advance() moves a search context to the next object. -+ * Called when the search iterates or when an object removal causes -+ * the search context to be moved to the next object. -+ */ -+static void yaffs_search_advance(struct yaffs_search_context *sc) -+{ -+ if (!sc) -+ return; -+ -+ if (sc->next_return == NULL || -+ list_empty(&sc->dir_obj->variant.dir_variant.children)) -+ sc->next_return = NULL; -+ else { -+ struct list_head *next = sc->next_return->siblings.next; -+ -+ if (next == &sc->dir_obj->variant.dir_variant.children) -+ sc->next_return = NULL; /* end of list */ -+ else -+ sc->next_return = -+ list_entry(next, struct yaffs_obj, siblings); -+ } -+} -+ -+/* -+ * yaffs_remove_obj_callback() is called when an object is unlinked. -+ * We check open search contexts and advance any which are currently -+ * on the object being iterated. -+ */ -+static void yaffs_remove_obj_callback(struct yaffs_obj *obj) -+{ -+ -+ struct list_head *i; -+ struct yaffs_search_context *sc; -+ struct list_head *search_contexts = -+ &(yaffs_dev_to_lc(obj->my_dev)->search_contexts); -+ -+ /* Iterate through the directory search contexts. -+ * If any are currently on the object being removed, then advance -+ * the search context to the next object to prevent a hanging pointer. -+ */ -+ list_for_each(i, search_contexts) { -+ sc = list_entry(i, struct yaffs_search_context, others); -+ if (sc->next_return == obj) -+ yaffs_search_advance(sc); -+ } -+ -+} -+ -+ -+/*-----------------------------------------------------------------*/ -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0)) -+static int yaffs_readdir(struct file *file, struct dir_context *ctx) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ struct yaffs_search_context *sc; -+ struct inode *inode = file->f_dentry->d_inode; -+ unsigned long offset, curoffs; -+ struct yaffs_obj *l; -+ int ret_val = 0; -+ -+ char name[YAFFS_MAX_NAME_LENGTH + 1]; -+ -+ obj = yaffs_dentry_to_obj(file->f_dentry); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_dev_to_lc(dev)->readdir_process = current; -+ -+ offset = ctx->pos; -+ -+ sc = yaffs_new_search(obj); -+ if (!sc) { -+ ret_val = -ENOMEM; -+ goto out; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: starting at %d", (int)offset); -+ -+ if (offset == 0) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: entry . ino %d", -+ (int)inode->i_ino); -+ yaffs_gross_unlock(dev); -+ if (!dir_emit_dot(file, ctx)) { -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ yaffs_gross_lock(dev); -+ offset++; -+ ctx->pos++; -+ } -+ if (offset == 1) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: entry .. ino %d", -+ (int)file->f_dentry->d_parent->d_inode->i_ino); -+ yaffs_gross_unlock(dev); -+ if (!dir_emit_dotdot(file, ctx)) { -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ yaffs_gross_lock(dev); -+ offset++; -+ ctx->pos++; -+ } -+ -+ curoffs = 1; -+ -+ /* If the directory has changed since the open or last call to -+ readdir, rewind to after the 2 canned entries. */ -+ if (file->f_version != inode->i_version) { -+ offset = 2; -+ ctx->pos = offset; -+ file->f_version = inode->i_version; -+ } -+ -+ while (sc->next_return) { -+ curoffs++; -+ l = sc->next_return; -+ if (curoffs >= offset) { -+ int this_inode = yaffs_get_obj_inode(l); -+ int this_type = yaffs_get_obj_type(l); -+ -+ yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1); -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: %s inode %d", -+ name, yaffs_get_obj_inode(l)); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (!dir_emit(ctx, name, strlen(name), -+ this_inode, this_type) < 0) { -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ -+ yaffs_gross_lock(dev); -+ -+ offset++; -+ ctx->pos++; -+ } -+ yaffs_search_advance(sc); -+ } -+ -+out: -+ yaffs_search_end(sc); -+ yaffs_dev_to_lc(dev)->readdir_process = NULL; -+ yaffs_gross_unlock(dev); -+ -+ return ret_val; -+} -+#else -+static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ struct yaffs_search_context *sc; -+ struct inode *inode = f->f_dentry->d_inode; -+ unsigned long offset, curoffs; -+ struct yaffs_obj *l; -+ int ret_val = 0; -+ -+ char name[YAFFS_MAX_NAME_LENGTH + 1]; -+ -+ obj = yaffs_dentry_to_obj(f->f_dentry); -+ dev = obj->my_dev; -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_dev_to_lc(dev)->readdir_process = current; -+ -+ offset = f->f_pos; -+ -+ sc = yaffs_new_search(obj); -+ if (!sc) { -+ ret_val = -ENOMEM; -+ goto out; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: starting at %d", (int)offset); -+ -+ if (offset == 0) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: entry . ino %d", -+ (int)inode->i_ino); -+ yaffs_gross_unlock(dev); -+ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) { -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ yaffs_gross_lock(dev); -+ offset++; -+ f->f_pos++; -+ } -+ if (offset == 1) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: entry .. ino %d", -+ (int)f->f_dentry->d_parent->d_inode->i_ino); -+ yaffs_gross_unlock(dev); -+ if (filldir(dirent, "..", 2, offset, -+ f->f_dentry->d_parent->d_inode->i_ino, -+ DT_DIR) < 0) { -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ yaffs_gross_lock(dev); -+ offset++; -+ f->f_pos++; -+ } -+ -+ curoffs = 1; -+ -+ /* If the directory has changed since the open or last call to -+ readdir, rewind to after the 2 canned entries. */ -+ if (f->f_version != inode->i_version) { -+ offset = 2; -+ f->f_pos = offset; -+ f->f_version = inode->i_version; -+ } -+ -+ while (sc->next_return) { -+ curoffs++; -+ l = sc->next_return; -+ if (curoffs >= offset) { -+ int this_inode = yaffs_get_obj_inode(l); -+ int this_type = yaffs_get_obj_type(l); -+ -+ yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1); -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_readdir: %s inode %d", -+ name, yaffs_get_obj_inode(l)); -+ -+ yaffs_gross_unlock(dev); -+ -+ if (filldir(dirent, -+ name, -+ strlen(name), -+ offset, this_inode, this_type) < 0) { -+ yaffs_gross_lock(dev); -+ goto out; -+ } -+ -+ yaffs_gross_lock(dev); -+ -+ offset++; -+ f->f_pos++; -+ } -+ yaffs_search_advance(sc); -+ } -+ -+out: -+ yaffs_search_end(sc); -+ yaffs_dev_to_lc(dev)->readdir_process = NULL; -+ yaffs_gross_unlock(dev); -+ -+ return ret_val; -+} -+#endif -+ -+static const struct file_operations yaffs_dir_operations = { -+ .read = generic_read_dir, -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0)) -+ .iterate = yaffs_readdir, -+#else -+ .readdir = yaffs_readdir, -+#endif -+ .fsync = yaffs_sync_object, -+ .llseek = generic_file_llseek, -+}; -+ -+static void yaffs_fill_inode_from_obj(struct inode *inode, -+ struct yaffs_obj *obj) -+{ -+ if (inode && obj) { -+ -+ /* Check mode against the variant type and attempt to repair if broken. */ -+ u32 mode = obj->yst_mode; -+ switch (obj->variant_type) { -+ case YAFFS_OBJECT_TYPE_FILE: -+ if (!S_ISREG(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFREG; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ if (!S_ISLNK(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFLNK; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ if (!S_ISDIR(mode)) { -+ obj->yst_mode &= ~S_IFMT; -+ obj->yst_mode |= S_IFDIR; -+ } -+ -+ break; -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ default: -+ /* TODO? */ -+ break; -+ } -+ -+ inode->i_flags |= S_NOATIME; -+ -+ inode->i_ino = obj->obj_id; -+ inode->i_mode = obj->yst_mode; -+ i_uid_write(inode, obj->yst_uid); -+ i_gid_write(inode, obj->yst_gid); -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -+ inode->i_blksize = inode->i_sb->s_blocksize; -+#endif -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ -+ inode->i_rdev = old_decode_dev(obj->yst_rdev); -+ inode->i_atime.tv_sec = (time_t) (obj->yst_atime); -+ inode->i_atime.tv_nsec = 0; -+ inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; -+ inode->i_mtime.tv_nsec = 0; -+ inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; -+ inode->i_ctime.tv_nsec = 0; -+#else -+ inode->i_rdev = obj->yst_rdev; -+ inode->i_atime = obj->yst_atime; -+ inode->i_mtime = obj->yst_mtime; -+ inode->i_ctime = obj->yst_ctime; -+#endif -+ inode->i_size = yaffs_get_obj_length(obj); -+ inode->i_blocks = (inode->i_size + 511) >> 9; -+ -+ set_nlink(inode, yaffs_get_obj_link_count(obj)); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_fill_inode mode %x uid %d gid %d size %lld count %d", -+ inode->i_mode, i_uid_read(inode), i_gid_read(inode), -+ inode->i_size, atomic_read(&inode->i_count)); -+ -+ switch (obj->yst_mode & S_IFMT) { -+ default: /* fifo, device or socket */ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ init_special_inode(inode, obj->yst_mode, -+ old_decode_dev(obj->yst_rdev)); -+#else -+ init_special_inode(inode, obj->yst_mode, -+ (dev_t) (obj->yst_rdev)); -+#endif -+ break; -+ case S_IFREG: /* file */ -+ inode->i_op = &yaffs_file_inode_operations; -+ inode->i_fop = &yaffs_file_operations; -+ inode->i_mapping->a_ops = -+ &yaffs_file_address_operations; -+ break; -+ case S_IFDIR: /* directory */ -+ inode->i_op = &yaffs_dir_inode_operations; -+ inode->i_fop = &yaffs_dir_operations; -+ break; -+ case S_IFLNK: /* symlink */ -+ inode->i_op = &yaffs_symlink_inode_operations; -+ break; -+ } -+ -+ yaffs_inode_to_obj_lv(inode) = obj; -+ -+ obj->my_inode = inode; -+ -+ } else { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_fill_inode invalid parameters"); -+ } -+ -+} -+ -+ -+ -+/* -+ * yaffs background thread functions . -+ * yaffs_bg_thread_fn() the thread function -+ * yaffs_bg_start() launches the background thread. -+ * yaffs_bg_stop() cleans up the background thread. -+ * -+ * NB: -+ * The thread should only run after the yaffs is initialised -+ * The thread should be stopped before yaffs is unmounted. -+ * The thread should not do any writing while the fs is in read only. -+ */ -+ -+static unsigned yaffs_bg_gc_urgency(struct yaffs_dev *dev) -+{ -+ unsigned erased_chunks = -+ dev->n_erased_blocks * dev->param.chunks_per_block; -+ struct yaffs_linux_context *context = yaffs_dev_to_lc(dev); -+ unsigned scattered = 0; /* Free chunks not in an erased block */ -+ -+ if (erased_chunks < dev->n_free_chunks) -+ scattered = (dev->n_free_chunks - erased_chunks); -+ -+ if (!context->bg_running) -+ return 0; -+ else if (scattered < (dev->param.chunks_per_block * 2)) -+ return 0; -+ else if (erased_chunks > dev->n_free_chunks / 2) -+ return 0; -+ else if (erased_chunks > dev->n_free_chunks / 4) -+ return 1; -+ else -+ return 2; -+} -+ -+#ifdef YAFFS_COMPILE_BACKGROUND -+ -+void yaffs_background_waker(unsigned long data) -+{ -+ wake_up_process((struct task_struct *)data); -+} -+ -+static int yaffs_bg_thread_fn(void *data) -+{ -+ struct yaffs_dev *dev = (struct yaffs_dev *)data; -+ struct yaffs_linux_context *context = yaffs_dev_to_lc(dev); -+ unsigned long now = jiffies; -+ unsigned long next_dir_update = now; -+ unsigned long next_gc = now; -+ unsigned long expires; -+ unsigned int urgency; -+ -+ int gc_result; -+ struct timer_list timer; -+ -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, -+ "yaffs_background starting for dev %p", (void *)dev); -+ -+#ifdef YAFFS_COMPILE_FREEZER -+ set_freezable(); -+#endif -+ while (context->bg_running) { -+ yaffs_trace(YAFFS_TRACE_BACKGROUND, "yaffs_background"); -+ -+ if (kthread_should_stop()) -+ break; -+ -+#ifdef YAFFS_COMPILE_FREEZER -+ if (try_to_freeze()) -+ continue; -+#endif -+ yaffs_gross_lock(dev); -+ -+ now = jiffies; -+ -+ if (time_after(now, next_dir_update) && yaffs_bg_enable) { -+ yaffs_update_dirty_dirs(dev); -+ next_dir_update = now + HZ; -+ } -+ -+ if (time_after(now, next_gc) && yaffs_bg_enable) { -+ if (!dev->is_checkpointed) { -+ urgency = yaffs_bg_gc_urgency(dev); -+ gc_result = yaffs_bg_gc(dev, urgency); -+ if (urgency > 1) -+ next_gc = now + HZ / 20 + 1; -+ else if (urgency > 0) -+ next_gc = now + HZ / 10 + 1; -+ else -+ next_gc = now + HZ * 2; -+ } else { -+ /* -+ * gc not running so set to next_dir_update -+ * to cut down on wake ups -+ */ -+ next_gc = next_dir_update; -+ } -+ } -+ yaffs_gross_unlock(dev); -+#if 1 -+ expires = next_dir_update; -+ if (time_before(next_gc, expires)) -+ expires = next_gc; -+ if (time_before(expires, now)) -+ expires = now + HZ; -+ -+ Y_INIT_TIMER(&timer); -+ timer.expires = expires + 1; -+ timer.data = (unsigned long)current; -+ timer.function = yaffs_background_waker; -+ -+ set_current_state(TASK_INTERRUPTIBLE); -+ add_timer(&timer); -+ schedule(); -+ del_timer_sync(&timer); -+#else -+ msleep(10); -+#endif -+ } -+ -+ return 0; -+} -+ -+static int yaffs_bg_start(struct yaffs_dev *dev) -+{ -+ int retval = 0; -+ struct yaffs_linux_context *context = yaffs_dev_to_lc(dev); -+ -+ if (dev->read_only) -+ return -1; -+ -+ context->bg_running = 1; -+ -+ context->bg_thread = kthread_run(yaffs_bg_thread_fn, -+ (void *)dev, "yaffs-bg-%d", -+ context->mount_id); -+ -+ if (IS_ERR(context->bg_thread)) { -+ retval = PTR_ERR(context->bg_thread); -+ context->bg_thread = NULL; -+ context->bg_running = 0; -+ } -+ return retval; -+} -+ -+static void yaffs_bg_stop(struct yaffs_dev *dev) -+{ -+ struct yaffs_linux_context *ctxt = yaffs_dev_to_lc(dev); -+ -+ ctxt->bg_running = 0; -+ -+ if (ctxt->bg_thread) { -+ kthread_stop(ctxt->bg_thread); -+ ctxt->bg_thread = NULL; -+ } -+} -+#else -+static int yaffs_bg_thread_fn(void *data) -+{ -+ return 0; -+} -+ -+static int yaffs_bg_start(struct yaffs_dev *dev) -+{ -+ return 0; -+} -+ -+static void yaffs_bg_stop(struct yaffs_dev *dev) -+{ -+} -+#endif -+ -+ -+static void yaffs_flush_inodes(struct super_block *sb) -+{ -+ struct inode *iptr; -+ struct yaffs_obj *obj; -+ -+ list_for_each_entry(iptr, &sb->s_inodes, i_sb_list) { -+ obj = yaffs_inode_to_obj(iptr); -+ if (obj) { -+ yaffs_trace(YAFFS_TRACE_OS, -+ "flushing obj %d", -+ obj->obj_id); -+ yaffs_flush_file(obj, 1, 0); -+ } -+ } -+} -+ -+static void yaffs_flush_super(struct super_block *sb, int do_checkpoint) -+{ -+ struct yaffs_dev *dev = yaffs_super_to_dev(sb); -+ if (!dev) -+ return; -+ -+ yaffs_flush_inodes(sb); -+ yaffs_update_dirty_dirs(dev); -+ yaffs_flush_whole_cache(dev); -+ if (do_checkpoint) -+ yaffs_checkpoint_save(dev); -+} -+ -+static LIST_HEAD(yaffs_context_list); -+struct mutex yaffs_context_lock; -+ -+static void yaffs_put_super(struct super_block *sb) -+{ -+ struct yaffs_dev *dev = yaffs_super_to_dev(sb); -+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS, -+ "yaffs_put_super"); -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, -+ "Shutting down yaffs background thread"); -+ yaffs_bg_stop(dev); -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, -+ "yaffs background thread shut down"); -+ -+ yaffs_gross_lock(dev); -+ -+ yaffs_flush_super(sb, 1); -+ -+ yaffs_deinitialise(dev); -+ -+ yaffs_gross_unlock(dev); -+ -+ mutex_lock(&yaffs_context_lock); -+ list_del_init(&(yaffs_dev_to_lc(dev)->context_list)); -+ mutex_unlock(&yaffs_context_lock); -+ -+ if (yaffs_dev_to_lc(dev)->spare_buffer) { -+ kfree(yaffs_dev_to_lc(dev)->spare_buffer); -+ yaffs_dev_to_lc(dev)->spare_buffer = NULL; -+ } -+ -+ kfree(dev); -+ -+ yaffs_put_mtd_device(mtd); -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS, -+ "yaffs_put_super done"); -+} -+ -+ -+static unsigned yaffs_gc_control_callback(struct yaffs_dev *dev) -+{ -+ return yaffs_gc_control; -+} -+ -+ -+#ifdef YAFFS_COMPILE_EXPORTFS -+ -+static struct inode *yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, -+ uint32_t generation) -+{ -+ return Y_IGET(sb, ino); -+} -+ -+static struct dentry *yaffs2_fh_to_dentry(struct super_block *sb, -+ struct fid *fid, int fh_len, -+ int fh_type) -+{ -+ return generic_fh_to_dentry(sb, fid, fh_len, fh_type, -+ yaffs2_nfs_get_inode); -+} -+ -+static struct dentry *yaffs2_fh_to_parent(struct super_block *sb, -+ struct fid *fid, int fh_len, -+ int fh_type) -+{ -+ return generic_fh_to_parent(sb, fid, fh_len, fh_type, -+ yaffs2_nfs_get_inode); -+} -+ -+struct dentry *yaffs2_get_parent(struct dentry *dentry) -+{ -+ -+ struct super_block *sb = dentry->d_inode->i_sb; -+ struct dentry *parent = ERR_PTR(-ENOENT); -+ struct inode *inode; -+ unsigned long parent_ino; -+ struct yaffs_obj *d_obj; -+ struct yaffs_obj *parent_obj; -+ -+ d_obj = yaffs_inode_to_obj(dentry->d_inode); -+ -+ if (d_obj) { -+ parent_obj = d_obj->parent; -+ if (parent_obj) { -+ parent_ino = yaffs_get_obj_inode(parent_obj); -+ inode = Y_IGET(sb, parent_ino); -+ -+ if (IS_ERR(inode)) { -+ parent = ERR_CAST(inode); -+ } else { -+ parent = d_obtain_alias(inode); -+ if (!IS_ERR(parent)) { -+ parent = ERR_PTR(-ENOMEM); -+ iput(inode); -+ } -+ } -+ } -+ } -+ -+ return parent; -+} -+ -+/* Just declare a zero structure as a NULL value implies -+ * using the default functions of exportfs. -+ */ -+ -+static struct export_operations yaffs_export_ops = { -+ .fh_to_dentry = yaffs2_fh_to_dentry, -+ .fh_to_parent = yaffs2_fh_to_parent, -+ .get_parent = yaffs2_get_parent, -+}; -+ -+#endif -+ -+static void yaffs_unstitch_obj(struct inode *inode, struct yaffs_obj *obj) -+{ -+ /* Clear the association between the inode and -+ * the struct yaffs_obj. -+ */ -+ obj->my_inode = NULL; -+ yaffs_inode_to_obj_lv(inode) = NULL; -+ -+ /* If the object freeing was deferred, then the real -+ * free happens now. -+ * This should fix the inode inconsistency problem. -+ */ -+ yaffs_handle_defered_free(obj); -+} -+ -+#ifdef YAFFS_HAS_EVICT_INODE -+/* yaffs_evict_inode combines into one operation what was previously done in -+ * yaffs_clear_inode() and yaffs_delete_inode() -+ * -+ */ -+static void yaffs_evict_inode(struct inode *inode) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ int deleteme = 0; -+ -+ obj = yaffs_inode_to_obj(inode); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_evict_inode: ino %d, count %d %s", -+ (int)inode->i_ino, atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object"); -+ -+ if (!inode->i_nlink && !is_bad_inode(inode)) -+ deleteme = 1; -+ truncate_inode_pages(&inode->i_data, 0); -+ Y_CLEAR_INODE(inode); -+ -+ if (deleteme && obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_del_obj(obj); -+ yaffs_gross_unlock(dev); -+ } -+ if (obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_unstitch_obj(inode, obj); -+ yaffs_gross_unlock(dev); -+ } -+} -+#else -+ -+/* clear is called to tell the fs to release any per-inode data it holds. -+ * The object might still exist on disk and is just being thrown out of the cache -+ * or else the object has actually been deleted and we're being called via -+ * the chain -+ * yaffs_delete_inode() -> clear_inode()->yaffs_clear_inode() -+ */ -+ -+static void yaffs_clear_inode(struct inode *inode) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_dev *dev; -+ -+ obj = yaffs_inode_to_obj(inode); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_clear_inode: ino %d, count %d %s", -+ (int)inode->i_ino, atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object"); -+ -+ if (obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_unstitch_obj(inode, obj); -+ yaffs_gross_unlock(dev); -+ } -+ -+} -+ -+/* delete is called when the link count is zero and the inode -+ * is put (ie. nobody wants to know about it anymore, time to -+ * delete the file). -+ * NB Must call clear_inode() -+ */ -+static void yaffs_delete_inode(struct inode *inode) -+{ -+ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); -+ struct yaffs_dev *dev; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_delete_inode: ino %d, count %d %s", -+ (int)inode->i_ino, atomic_read(&inode->i_count), -+ obj ? "object exists" : "null object"); -+ -+ if (obj) { -+ dev = obj->my_dev; -+ yaffs_gross_lock(dev); -+ yaffs_del_obj(obj); -+ yaffs_gross_unlock(dev); -+ } -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) -+ truncate_inode_pages(&inode->i_data, 0); -+#endif -+ clear_inode(inode); -+} -+#endif -+ -+ -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) -+{ -+ struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev; -+ struct super_block *sb = dentry->d_sb; -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) -+{ -+ struct yaffs_dev *dev = yaffs_super_to_dev(sb); -+#else -+static int yaffs_statfs(struct super_block *sb, struct statfs *buf) -+{ -+ struct yaffs_dev *dev = yaffs_super_to_dev(sb); -+#endif -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_statfs"); -+ -+ yaffs_gross_lock(dev); -+ -+ buf->f_type = YAFFS_MAGIC; -+ buf->f_bsize = sb->s_blocksize; -+ buf->f_namelen = 255; -+ -+ if (dev->data_bytes_per_chunk & (dev->data_bytes_per_chunk - 1)) { -+ /* Do this if chunk size is not a power of 2 */ -+ -+ uint64_t bytes_in_dev; -+ uint64_t bytes_free; -+ -+ bytes_in_dev = -+ ((uint64_t) -+ ((dev->param.end_block - dev->param.start_block + -+ 1))) * ((uint64_t) (dev->param.chunks_per_block * -+ dev->data_bytes_per_chunk)); -+ -+ do_div(bytes_in_dev, sb->s_blocksize); /* bytes_in_dev becomes the number of blocks */ -+ buf->f_blocks = bytes_in_dev; -+ -+ bytes_free = ((uint64_t) (yaffs_get_n_free_chunks(dev))) * -+ ((uint64_t) (dev->data_bytes_per_chunk)); -+ -+ do_div(bytes_free, sb->s_blocksize); -+ -+ buf->f_bfree = bytes_free; -+ -+ } else if (sb->s_blocksize > dev->data_bytes_per_chunk) { -+ -+ buf->f_blocks = -+ (dev->param.end_block - dev->param.start_block + 1) * -+ dev->param.chunks_per_block / -+ (sb->s_blocksize / dev->data_bytes_per_chunk); -+ buf->f_bfree = -+ yaffs_get_n_free_chunks(dev) / -+ (sb->s_blocksize / dev->data_bytes_per_chunk); -+ } else { -+ buf->f_blocks = -+ (dev->param.end_block - dev->param.start_block + 1) * -+ dev->param.chunks_per_block * -+ (dev->data_bytes_per_chunk / sb->s_blocksize); -+ -+ buf->f_bfree = -+ yaffs_get_n_free_chunks(dev) * -+ (dev->data_bytes_per_chunk / sb->s_blocksize); -+ } -+ -+ buf->f_files = 0; -+ buf->f_ffree = 0; -+ buf->f_bavail = buf->f_bfree; -+ -+ yaffs_gross_unlock(dev); -+ return 0; -+} -+ -+ -+ -+static int yaffs_do_sync_fs(struct super_block *sb, int request_checkpoint) -+{ -+ -+ struct yaffs_dev *dev = yaffs_super_to_dev(sb); -+ unsigned int oneshot_checkpoint = (yaffs_auto_checkpoint & 4); -+ unsigned gc_urgent = yaffs_bg_gc_urgency(dev); -+ int do_checkpoint; -+ int dirty = yaffs_check_super_dirty(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, -+ "yaffs_do_sync_fs: gc-urgency %d %s %s%s", -+ gc_urgent, -+ dirty ? "dirty" : "clean", -+ request_checkpoint ? "checkpoint requested" : "no checkpoint", -+ oneshot_checkpoint ? " one-shot" : ""); -+ -+ yaffs_gross_lock(dev); -+ do_checkpoint = ((request_checkpoint && !gc_urgent) || -+ oneshot_checkpoint) && !dev->is_checkpointed; -+ -+ if (dirty || do_checkpoint) { -+ yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint); -+ yaffs_clear_super_dirty(dev); -+ if (oneshot_checkpoint) -+ yaffs_auto_checkpoint &= ~4; -+ } -+ yaffs_gross_unlock(dev); -+ -+ return 0; -+} -+ -+ -+#ifdef YAFFS_HAS_WRITE_SUPER -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static void yaffs_write_super(struct super_block *sb) -+#else -+static int yaffs_write_super(struct super_block *sb) -+#endif -+{ -+ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2); -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, -+ "yaffs_write_super %s", -+ request_checkpoint ? " checkpt" : ""); -+ -+ yaffs_do_sync_fs(sb, request_checkpoint); -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) -+ return 0; -+#endif -+} -+#endif -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_sync_fs(struct super_block *sb, int wait) -+#else -+static int yaffs_sync_fs(struct super_block *sb) -+#endif -+{ -+ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1); -+ -+ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, -+ "yaffs_sync_fs%s", request_checkpoint ? " checkpt" : ""); -+ -+ yaffs_do_sync_fs(sb, request_checkpoint); -+ -+ return 0; -+} -+ -+ -+ -+static const struct super_operations yaffs_super_ops = { -+ .statfs = yaffs_statfs, -+ -+#ifndef YAFFS_USE_OWN_IGET -+ .read_inode = yaffs_read_inode, -+#endif -+#ifdef YAFFS_HAS_PUT_INODE -+ .put_inode = yaffs_put_inode, -+#endif -+ .put_super = yaffs_put_super, -+#ifdef YAFFS_HAS_EVICT_INODE -+ .evict_inode = yaffs_evict_inode, -+#else -+ .delete_inode = yaffs_delete_inode, -+ .clear_inode = yaffs_clear_inode, -+#endif -+ .sync_fs = yaffs_sync_fs, -+#ifdef YAFFS_HAS_WRITE_SUPER -+ .write_super = yaffs_write_super, -+#endif -+}; -+ -+struct yaffs_options { -+ int inband_tags; -+ int skip_checkpoint_read; -+ int skip_checkpoint_write; -+ int no_cache; -+ int tags_ecc_on; -+ int tags_ecc_overridden; -+ int lazy_loading_enabled; -+ int lazy_loading_overridden; -+ int empty_lost_and_found; -+ int empty_lost_and_found_overridden; -+ int disable_summary; -+}; -+ -+#define MAX_OPT_LEN 30 -+static int yaffs_parse_options(struct yaffs_options *options, -+ const char *options_str) -+{ -+ char cur_opt[MAX_OPT_LEN + 1]; -+ int p; -+ int error = 0; -+ -+ /* Parse through the options which is a comma seperated list */ -+ -+ while (options_str && *options_str && !error) { -+ memset(cur_opt, 0, MAX_OPT_LEN + 1); -+ p = 0; -+ -+ while (*options_str == ',') -+ options_str++; -+ -+ while (*options_str && *options_str != ',') { -+ if (p < MAX_OPT_LEN) { -+ cur_opt[p] = *options_str; -+ p++; -+ } -+ options_str++; -+ } -+ -+ if (!strcmp(cur_opt, "inband-tags")) { -+ options->inband_tags = 1; -+ } else if (!strcmp(cur_opt, "tags-ecc-off")) { -+ options->tags_ecc_on = 0; -+ options->tags_ecc_overridden = 1; -+ } else if (!strcmp(cur_opt, "tags-ecc-on")) { -+ options->tags_ecc_on = 1; -+ options->tags_ecc_overridden = 1; -+ } else if (!strcmp(cur_opt, "lazy-loading-off")) { -+ options->lazy_loading_enabled = 0; -+ options->lazy_loading_overridden = 1; -+ } else if (!strcmp(cur_opt, "lazy-loading-on")) { -+ options->lazy_loading_enabled = 1; -+ options->lazy_loading_overridden = 1; -+ } else if (!strcmp(cur_opt, "disable-summary")) { -+ options->disable_summary = 1; -+ } else if (!strcmp(cur_opt, "empty-lost-and-found-off")) { -+ options->empty_lost_and_found = 0; -+ options->empty_lost_and_found_overridden = 1; -+ } else if (!strcmp(cur_opt, "empty-lost-and-found-on")) { -+ options->empty_lost_and_found = 1; -+ options->empty_lost_and_found_overridden = 1; -+ } else if (!strcmp(cur_opt, "no-cache")) { -+ options->no_cache = 1; -+ } else if (!strcmp(cur_opt, "no-checkpoint-read")) { -+ options->skip_checkpoint_read = 1; -+ } else if (!strcmp(cur_opt, "no-checkpoint-write")) { -+ options->skip_checkpoint_write = 1; -+ } else if (!strcmp(cur_opt, "no-checkpoint")) { -+ options->skip_checkpoint_read = 1; -+ options->skip_checkpoint_write = 1; -+ } else { -+ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", -+ cur_opt); -+ error = 1; -+ } -+ } -+ -+ return error; -+} -+ -+ -+static struct dentry *yaffs_make_root(struct inode *inode) -+{ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)) -+ struct dentry *root = d_alloc_root(inode); -+ -+ if (!root) -+ iput(inode); -+ -+ return root; -+#else -+ return d_make_root(inode); -+#endif -+} -+ -+ -+ -+ -+static struct super_block *yaffs_internal_read_super(int yaffs_version, -+ struct super_block *sb, -+ void *data, int silent) -+{ -+ int n_blocks; -+ struct inode *inode = NULL; -+ struct dentry *root; -+ struct yaffs_dev *dev = 0; -+ char devname_buf[BDEVNAME_SIZE + 1]; -+ struct mtd_info *mtd; -+ int err; -+ char *data_str = (char *)data; -+ struct yaffs_linux_context *context = NULL; -+ struct yaffs_param *param; -+ -+ int read_only = 0; -+ int inband_tags = 0; -+ -+ struct yaffs_options options; -+ -+ unsigned mount_id; -+ int found; -+ struct yaffs_linux_context *context_iterator; -+ struct list_head *l; -+ -+ if (!sb) { -+ printk(KERN_INFO "yaffs: sb is NULL\n"); -+ return NULL; -+ } -+ -+ sb->s_magic = YAFFS_MAGIC; -+ sb->s_op = &yaffs_super_ops; -+ sb->s_flags |= MS_NOATIME; -+ -+ read_only = ((sb->s_flags & MS_RDONLY) != 0); -+ -+#ifdef YAFFS_COMPILE_EXPORTFS -+ sb->s_export_op = &yaffs_export_ops; -+#endif -+ -+ if (!sb->s_dev) -+ printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); -+ else if (!yaffs_devname(sb, devname_buf)) -+ printk(KERN_INFO "yaffs: devname is NULL\n"); -+ else -+ printk(KERN_INFO "yaffs: dev is %d name is \"%s\" %s\n", -+ sb->s_dev, -+ yaffs_devname(sb, devname_buf), read_only ? "ro" : "rw"); -+ -+ if (!data_str) -+ data_str = ""; -+ -+ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); -+ -+ memset(&options, 0, sizeof(options)); -+ -+ if (yaffs_parse_options(&options, data_str)) { -+ /* Option parsing failed */ -+ return NULL; -+ } -+ -+ sb->s_blocksize = PAGE_CACHE_SIZE; -+ sb->s_blocksize_bits = PAGE_CACHE_SHIFT; -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_read_super: Using yaffs%d", yaffs_version); -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_read_super: block size %d", (int)(sb->s_blocksize)); -+ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: Attempting MTD mount of %u.%u,\"%s\"", -+ MAJOR(sb->s_dev), MINOR(sb->s_dev), -+ yaffs_devname(sb, devname_buf)); -+ -+ /* Get the device */ -+ mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); -+ if (IS_ERR(mtd)) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs: MTD device %u either not valid or unavailable", -+ MINOR(sb->s_dev)); -+ return NULL; -+ } -+ -+ if (yaffs_auto_select && yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "auto selecting yaffs2"); -+ yaffs_version = 2; -+ } -+ -+ /* Added NCB 26/5/2006 for completeness */ -+ if (yaffs_version == 2 && !options.inband_tags -+ && WRITE_SIZE(mtd) == 512) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "auto selecting yaffs1"); -+ yaffs_version = 1; -+ } -+ -+ if (mtd->oobavail < sizeof(struct yaffs_packed_tags2) || -+ options.inband_tags) -+ inband_tags = 1; -+ -+ if(yaffs_verify_mtd(mtd, yaffs_version, inband_tags) < 0) -+ return NULL; -+ -+ /* OK, so if we got here, we have an MTD that's NAND and looks -+ * like it has the right capabilities -+ * Set the struct yaffs_dev up for mtd -+ */ -+ -+ if (!read_only && !(mtd->flags & MTD_WRITEABLE)) { -+ read_only = 1; -+ printk(KERN_INFO -+ "yaffs: mtd is read only, setting superblock read only\n" -+ ); -+ sb->s_flags |= MS_RDONLY; -+ } -+ -+ dev = kmalloc(sizeof(struct yaffs_dev), GFP_KERNEL); -+ context = kmalloc(sizeof(struct yaffs_linux_context), GFP_KERNEL); -+ -+ if (!dev || !context) { -+ kfree(dev); -+ kfree(context); -+ dev = NULL; -+ context = NULL; -+ -+ /* Deep shit could not allocate device structure */ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs_read_super: Failed trying to allocate struct yaffs_dev." -+ ); -+ return NULL; -+ } -+ memset(dev, 0, sizeof(struct yaffs_dev)); -+ param = &(dev->param); -+ -+ memset(context, 0, sizeof(struct yaffs_linux_context)); -+ dev->os_context = context; -+ INIT_LIST_HEAD(&(context->context_list)); -+ context->dev = dev; -+ context->super = sb; -+ -+ dev->read_only = read_only; -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+ sb->s_fs_info = dev; -+#else -+ sb->u.generic_sbp = dev; -+#endif -+ -+ -+ dev->driver_context = mtd; -+ param->name = mtd->name; -+ -+ /* Set up the memory size parameters.... */ -+ -+ -+ param->n_reserved_blocks = 5; -+ param->n_caches = (options.no_cache) ? 0 : 10; -+ param->inband_tags = inband_tags; -+ -+ param->enable_xattr = 1; -+ if (options.lazy_loading_overridden) -+ param->disable_lazy_load = !options.lazy_loading_enabled; -+ -+ param->defered_dir_update = 1; -+ -+ if (options.tags_ecc_overridden) -+ param->no_tags_ecc = !options.tags_ecc_on; -+ -+ param->empty_lost_n_found = 1; -+ param->refresh_period = 500; -+ param->disable_summary = options.disable_summary; -+ -+ -+#ifdef CONFIG_YAFFS_DISABLE_BAD_BLOCK_MARKING -+ param->disable_bad_block_marking = 1; -+#endif -+ if (options.empty_lost_and_found_overridden) -+ param->empty_lost_n_found = options.empty_lost_and_found; -+ -+ /* ... and the functions. */ -+ if (yaffs_version == 2) { -+ param->is_yaffs2 = 1; -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+ param->total_bytes_per_chunk = mtd->writesize; -+ param->chunks_per_block = mtd->erasesize / mtd->writesize; -+#else -+ param->total_bytes_per_chunk = mtd->oobblock; -+ param->chunks_per_block = mtd->erasesize / mtd->oobblock; -+#endif -+ n_blocks = YCALCBLOCKS(mtd->size, mtd->erasesize); -+ -+ param->start_block = 0; -+ param->end_block = n_blocks - 1; -+ } else { -+ param->is_yaffs2 = 0; -+ n_blocks = YCALCBLOCKS(mtd->size, -+ YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); -+ -+ param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK; -+ param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK; -+ } -+ -+ param->start_block = 0; -+ param->end_block = n_blocks - 1; -+ -+ yaffs_mtd_drv_install(dev); -+ -+ param->sb_dirty_fn = yaffs_set_super_dirty; -+ param->gc_control_fn = yaffs_gc_control_callback; -+ -+ yaffs_dev_to_lc(dev)->super = sb; -+ -+ param->use_nand_ecc = 1; -+ -+ param->skip_checkpt_rd = options.skip_checkpoint_read; -+ param->skip_checkpt_wr = options.skip_checkpoint_write; -+ -+ mutex_lock(&yaffs_context_lock); -+ /* Get a mount id */ -+ found = 0; -+ for (mount_id = 0; !found; mount_id++) { -+ found = 1; -+ list_for_each(l, &yaffs_context_list) { -+ context_iterator = -+ list_entry(l, struct yaffs_linux_context, -+ context_list); -+ if (context_iterator->mount_id == mount_id) -+ found = 0; -+ } -+ } -+ context->mount_id = mount_id; -+ -+ list_add_tail(&(yaffs_dev_to_lc(dev)->context_list), -+ &yaffs_context_list); -+ mutex_unlock(&yaffs_context_lock); -+ -+ /* Directory search handling... */ -+ INIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->search_contexts)); -+ param->remove_obj_fn = yaffs_remove_obj_callback; -+ -+ mutex_init(&(yaffs_dev_to_lc(dev)->gross_lock)); -+ -+ yaffs_gross_lock(dev); -+ -+ err = yaffs_guts_initialise(dev); -+ -+ yaffs_trace(YAFFS_TRACE_OS, -+ "yaffs_read_super: guts initialised %s", -+ (err == YAFFS_OK) ? "OK" : "FAILED"); -+ -+ if (err == YAFFS_OK) -+ yaffs_bg_start(dev); -+ -+ if (!context->bg_thread) -+ param->defered_dir_update = 0; -+ -+ sb->s_maxbytes = yaffs_max_file_size(dev); -+ -+ /* Release lock before yaffs_get_inode() */ -+ yaffs_gross_unlock(dev); -+ -+ /* Create root inode */ -+ if (err == YAFFS_OK) -+ inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, yaffs_root(dev)); -+ -+ if (!inode) -+ return NULL; -+ -+ inode->i_op = &yaffs_dir_inode_operations; -+ inode->i_fop = &yaffs_dir_operations; -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_read_super: got root inode"); -+ -+ root = yaffs_make_root(inode); -+ -+ if (!root) -+ return NULL; -+ -+ sb->s_root = root; -+ if(!dev->is_checkpointed) -+ yaffs_set_super_dirty(dev); -+ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs_read_super: is_checkpointed %d", -+ dev->is_checkpointed); -+ -+ yaffs_trace(YAFFS_TRACE_OS, "yaffs_read_super: done"); -+ return sb; -+} -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, -+ int silent) -+{ -+ return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; -+} -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) -+static struct dentry *yaffs_mount(struct file_system_type *fs_type, int flags, -+ const char *dev_name, void *data) -+{ -+ return mount_bdev(fs_type, flags, dev_name, data, yaffs_internal_read_super_mtd); -+} -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, -+ void *data, struct vfsmount *mnt) -+{ -+ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs_internal_read_super_mtd, mnt); -+} -+#else -+static struct super_block *yaffs_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, -+ void *data) -+{ -+ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs_internal_read_super_mtd); -+} -+#endif -+ -+static struct file_system_type yaffs_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "yaffs", -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) -+ .mount = yaffs_mount, -+#else -+ .get_sb = yaffs_read_super, -+#endif -+ .kill_sb = kill_block_super, -+ .fs_flags = FS_REQUIRES_DEV, -+}; -+#else -+static struct super_block *yaffs_read_super(struct super_block *sb, void *data, -+ int silent) -+{ -+ return yaffs_internal_read_super(1, sb, data, silent); -+} -+ -+static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, -+ FS_REQUIRES_DEV); -+#endif -+ -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, -+ int silent) -+{ -+ return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; -+} -+ -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) -+static struct dentry *yaffs2_mount(struct file_system_type *fs_type, int flags, -+ const char *dev_name, void *data) -+{ -+ return mount_bdev(fs_type, flags, dev_name, data, yaffs2_internal_read_super_mtd); -+} -+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) -+static int yaffs2_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, void *data, -+ struct vfsmount *mnt) -+{ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs2_internal_read_super_mtd, mnt); -+} -+#else -+static struct super_block *yaffs2_read_super(struct file_system_type *fs, -+ int flags, const char *dev_name, -+ void *data) -+{ -+ -+ return get_sb_bdev(fs, flags, dev_name, data, -+ yaffs2_internal_read_super_mtd); -+} -+#endif -+ -+static struct file_system_type yaffs2_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "yaffs2", -+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) -+ .mount = yaffs2_mount, -+#else -+ .get_sb = yaffs2_read_super, -+#endif -+ .kill_sb = kill_block_super, -+ .fs_flags = FS_REQUIRES_DEV, -+}; -+#else -+static struct super_block *yaffs2_read_super(struct super_block *sb, -+ void *data, int silent) -+{ -+ return yaffs_internal_read_super(2, sb, data, silent); -+} -+ -+static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, -+ FS_REQUIRES_DEV); -+#endif -+ -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) -+static struct proc_dir_entry *my_proc_entry; -+ -+static char *yaffs_dump_dev_part0(char *buf, struct yaffs_dev *dev) -+{ -+ struct yaffs_param *param = &dev->param; -+ int bs[10]; -+ -+ yaffs_count_blocks_by_state(dev,bs); -+ -+ buf += sprintf(buf, "start_block.......... %d\n", param->start_block); -+ buf += sprintf(buf, "end_block............ %d\n", param->end_block); -+ buf += sprintf(buf, "total_bytes_per_chunk %d\n", -+ param->total_bytes_per_chunk); -+ buf += sprintf(buf, "use_nand_ecc......... %d\n", param->use_nand_ecc); -+ buf += sprintf(buf, "no_tags_ecc.......... %d\n", param->no_tags_ecc); -+ buf += sprintf(buf, "is_yaffs2............ %d\n", param->is_yaffs2); -+ buf += sprintf(buf, "inband_tags.......... %d\n", param->inband_tags); -+ buf += sprintf(buf, "empty_lost_n_found... %d\n", -+ param->empty_lost_n_found); -+ buf += sprintf(buf, "disable_lazy_load.... %d\n", -+ param->disable_lazy_load); -+ buf += sprintf(buf, "disable_bad_block_mrk %d\n", -+ param->disable_bad_block_marking); -+ buf += sprintf(buf, "refresh_period....... %d\n", -+ param->refresh_period); -+ buf += sprintf(buf, "n_caches............. %d\n", param->n_caches); -+ buf += sprintf(buf, "n_reserved_blocks.... %d\n", -+ param->n_reserved_blocks); -+ buf += sprintf(buf, "always_check_erased.. %d\n", -+ param->always_check_erased); -+ buf += sprintf(buf, "\n"); -+ buf += sprintf(buf, "block count by state\n"); -+ buf += sprintf(buf, "0:%d 1:%d 2:%d 3:%d 4:%d\n", -+ bs[0], bs[1], bs[2], bs[3], bs[4]); -+ buf += sprintf(buf, "5:%d 6:%d 7:%d 8:%d 9:%d\n", -+ bs[5], bs[6], bs[7], bs[8], bs[9]); -+ -+ return buf; -+} -+ -+static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev *dev) -+{ -+ buf += sprintf(buf, "max file size....... %lld\n", -+ (long long) yaffs_max_file_size(dev)); -+ buf += sprintf(buf, "data_bytes_per_chunk. %d\n", -+ dev->data_bytes_per_chunk); -+ buf += sprintf(buf, "chunk_grp_bits....... %d\n", dev->chunk_grp_bits); -+ buf += sprintf(buf, "chunk_grp_size....... %d\n", dev->chunk_grp_size); -+ buf += sprintf(buf, "n_erased_blocks...... %d\n", dev->n_erased_blocks); -+ buf += sprintf(buf, "blocks_in_checkpt.... %d\n", -+ dev->blocks_in_checkpt); -+ buf += sprintf(buf, "\n"); -+ buf += sprintf(buf, "n_tnodes............. %d\n", dev->n_tnodes); -+ buf += sprintf(buf, "n_obj................ %d\n", dev->n_obj); -+ buf += sprintf(buf, "n_free_chunks........ %d\n", dev->n_free_chunks); -+ buf += sprintf(buf, "\n"); -+ buf += sprintf(buf, "n_page_writes........ %u\n", dev->n_page_writes); -+ buf += sprintf(buf, "n_page_reads......... %u\n", dev->n_page_reads); -+ buf += sprintf(buf, "n_erasures........... %u\n", dev->n_erasures); -+ buf += sprintf(buf, "n_gc_copies.......... %u\n", dev->n_gc_copies); -+ buf += sprintf(buf, "all_gcs.............. %u\n", dev->all_gcs); -+ buf += sprintf(buf, "passive_gc_count..... %u\n", -+ dev->passive_gc_count); -+ buf += sprintf(buf, "oldest_dirty_gc_count %u\n", -+ dev->oldest_dirty_gc_count); -+ buf += sprintf(buf, "n_gc_blocks.......... %u\n", dev->n_gc_blocks); -+ buf += sprintf(buf, "bg_gcs............... %u\n", dev->bg_gcs); -+ buf += sprintf(buf, "n_retried_writes..... %u\n", -+ dev->n_retried_writes); -+ buf += sprintf(buf, "n_retired_blocks..... %u\n", -+ dev->n_retired_blocks); -+ buf += sprintf(buf, "n_ecc_fixed.......... %u\n", dev->n_ecc_fixed); -+ buf += sprintf(buf, "n_ecc_unfixed........ %u\n", dev->n_ecc_unfixed); -+ buf += sprintf(buf, "n_tags_ecc_fixed..... %u\n", -+ dev->n_tags_ecc_fixed); -+ buf += sprintf(buf, "n_tags_ecc_unfixed... %u\n", -+ dev->n_tags_ecc_unfixed); -+ buf += sprintf(buf, "cache_hits........... %u\n", dev->cache_hits); -+ buf += sprintf(buf, "n_deleted_files...... %u\n", dev->n_deleted_files); -+ buf += sprintf(buf, "n_unlinked_files..... %u\n", -+ dev->n_unlinked_files); -+ buf += sprintf(buf, "refresh_count........ %u\n", dev->refresh_count); -+ buf += sprintf(buf, "n_bg_deletions....... %u\n", dev->n_bg_deletions); -+ buf += sprintf(buf, "tags_used............ %u\n", dev->tags_used); -+ buf += sprintf(buf, "summary_used......... %u\n", dev->summary_used); -+ -+ return buf; -+} -+ -+static int yaffs_proc_read(char *page, -+ char **start, -+ off_t offset, int count, int *eof, void *data) -+{ -+ struct list_head *item; -+ char *buf = page; -+ int step = offset; -+ int n = 0; -+ -+ /* Get proc_file_read() to step 'offset' by one on each sucessive call. -+ * We use 'offset' (*ppos) to indicate where we are in dev_list. -+ * This also assumes the user has posted a read buffer large -+ * enough to hold the complete output; but that's life in /proc. -+ */ -+ -+ *(int *)start = 1; -+ -+ /* Print header first */ -+ if (step == 0) -+ buf += -+ sprintf(buf, -+ "Multi-version YAFFS built:" __DATE__ " " __TIME__ -+ "\n"); -+ else if (step == 1) -+ buf += sprintf(buf, "\n"); -+ else { -+ step -= 2; -+ -+ mutex_lock(&yaffs_context_lock); -+ -+ /* Locate and print the Nth entry. Order N-squared but N is small. */ -+ list_for_each(item, &yaffs_context_list) { -+ struct yaffs_linux_context *dc = -+ list_entry(item, struct yaffs_linux_context, -+ context_list); -+ struct yaffs_dev *dev = dc->dev; -+ -+ if (n < (step & ~1)) { -+ n += 2; -+ continue; -+ } -+ if ((step & 1) == 0) { -+ buf += -+ sprintf(buf, "\nDevice %d \"%s\"\n", n, -+ dev->param.name); -+ buf = yaffs_dump_dev_part0(buf, dev); -+ } else { -+ buf = yaffs_dump_dev_part1(buf, dev); -+ } -+ -+ break; -+ } -+ mutex_unlock(&yaffs_context_lock); -+ } -+ -+ return buf - page < count ? buf - page : count; -+} -+ -+/** -+ * Set the verbosity of the warnings and error messages. -+ * -+ * Note that the names can only be a..z or _ with the current code. -+ */ -+ -+static struct { -+ char *mask_name; -+ unsigned mask_bitfield; -+} mask_flags[] = { -+ {"allocate", YAFFS_TRACE_ALLOCATE}, -+ {"always", YAFFS_TRACE_ALWAYS}, -+ {"background", YAFFS_TRACE_BACKGROUND}, -+ {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, -+ {"buffers", YAFFS_TRACE_BUFFERS}, -+ {"bug", YAFFS_TRACE_BUG}, -+ {"checkpt", YAFFS_TRACE_CHECKPOINT}, -+ {"deletion", YAFFS_TRACE_DELETION}, -+ {"erase", YAFFS_TRACE_ERASE}, -+ {"error", YAFFS_TRACE_ERROR}, -+ {"gc_detail", YAFFS_TRACE_GC_DETAIL}, -+ {"gc", YAFFS_TRACE_GC}, -+ {"lock", YAFFS_TRACE_LOCK}, -+ {"mtd", YAFFS_TRACE_MTD}, -+ {"nandaccess", YAFFS_TRACE_NANDACCESS}, -+ {"os", YAFFS_TRACE_OS}, -+ {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, -+ {"scan", YAFFS_TRACE_SCAN}, -+ {"mount", YAFFS_TRACE_MOUNT}, -+ {"tracing", YAFFS_TRACE_TRACING}, -+ {"sync", YAFFS_TRACE_SYNC}, -+ {"write", YAFFS_TRACE_WRITE}, -+ {"verify", YAFFS_TRACE_VERIFY}, -+ {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, -+ {"verify_full", YAFFS_TRACE_VERIFY_FULL}, -+ {"verify_all", YAFFS_TRACE_VERIFY_ALL}, -+ {"all", 0xffffffff}, -+ {"none", 0}, -+ {NULL, 0}, -+}; -+ -+#define MAX_MASK_NAME_LENGTH 40 -+static int yaffs_proc_write_trace_options(struct file *file, const char *buf, -+ unsigned long count, void *data) -+{ -+ unsigned rg = 0, mask_bitfield; -+ char *end; -+ char *mask_name; -+ const char *x; -+ char substring[MAX_MASK_NAME_LENGTH + 1]; -+ int i; -+ int done = 0; -+ int add, len = 0; -+ int pos = 0; -+ -+ rg = yaffs_trace_mask; -+ -+ while (!done && (pos < count)) { -+ done = 1; -+ while ((pos < count) && isspace(buf[pos])) -+ pos++; -+ -+ switch (buf[pos]) { -+ case '+': -+ case '-': -+ case '=': -+ add = buf[pos]; -+ pos++; -+ break; -+ -+ default: -+ add = ' '; -+ break; -+ } -+ mask_name = NULL; -+ -+ mask_bitfield = simple_strtoul(buf + pos, &end, 0); -+ -+ if (end > buf + pos) { -+ mask_name = "numeral"; -+ len = end - (buf + pos); -+ pos += len; -+ done = 0; -+ } else { -+ for (x = buf + pos, i = 0; -+ (*x == '_' || (*x >= 'a' && *x <= 'z')) && -+ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) -+ substring[i] = *x; -+ substring[i] = '\0'; -+ -+ for (i = 0; mask_flags[i].mask_name != NULL; i++) { -+ if (strcmp(substring, mask_flags[i].mask_name) -+ == 0) { -+ mask_name = mask_flags[i].mask_name; -+ mask_bitfield = -+ mask_flags[i].mask_bitfield; -+ done = 0; -+ break; -+ } -+ } -+ } -+ -+ if (mask_name != NULL) { -+ done = 0; -+ switch (add) { -+ case '-': -+ rg &= ~mask_bitfield; -+ break; -+ case '+': -+ rg |= mask_bitfield; -+ break; -+ case '=': -+ rg = mask_bitfield; -+ break; -+ default: -+ rg |= mask_bitfield; -+ break; -+ } -+ } -+ } -+ -+ yaffs_trace_mask = rg | YAFFS_TRACE_ALWAYS; -+ -+ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_trace_mask); -+ -+ if (rg & YAFFS_TRACE_ALWAYS) { -+ for (i = 0; mask_flags[i].mask_name != NULL; i++) { -+ char flag; -+ flag = ((rg & mask_flags[i].mask_bitfield) == -+ mask_flags[i].mask_bitfield) ? '+' : '-'; -+ printk(KERN_DEBUG "%c%s\n", flag, -+ mask_flags[i].mask_name); -+ } -+ } -+ -+ return count; -+} -+ -+/* Debug strings are of the form: -+ * .bnnn print info on block n -+ * .cobjn,chunkn print nand chunk id for objn:chunkn -+ */ -+ -+static int yaffs_proc_debug_write(struct file *file, const char *buf, -+ unsigned long count, void *data) -+{ -+ -+ char str[100]; -+ char *p0; -+ char *p1; -+ long p1_val; -+ long p0_val; -+ char cmd; -+ struct list_head *item; -+ -+ memset(str, 0, sizeof(str)); -+ memcpy(str, buf, min(count, sizeof(str) -1)); -+ -+ cmd = str[1]; -+ -+ p0 = str + 2; -+ -+ p1 = p0; -+ -+ while (*p1 && *p1 != ',') { -+ p1++; -+ } -+ *p1 = '\0'; -+ p1++; -+ -+ p0_val = simple_strtol(p0, NULL, 0); -+ p1_val = simple_strtol(p1, NULL, 0); -+ -+ -+ mutex_lock(&yaffs_context_lock); -+ -+ /* Locate and print the Nth entry. Order N-squared but N is small. */ -+ list_for_each(item, &yaffs_context_list) { -+ struct yaffs_linux_context *dc = -+ list_entry(item, struct yaffs_linux_context, -+ context_list); -+ struct yaffs_dev *dev = dc->dev; -+ -+ if (cmd == 'b') { -+ struct yaffs_block_info *bi; -+ -+ bi = yaffs_get_block_info(dev,p0_val); -+ -+ if(bi) { -+ printk("Block %d: state %d, retire %d, use %d, seq %d\n", -+ (int)p0_val, bi->block_state, -+ bi->needs_retiring, bi->pages_in_use, -+ bi->seq_number); -+ } -+ } else if (cmd == 'c') { -+ struct yaffs_obj *obj; -+ int nand_chunk; -+ -+ obj = yaffs_find_by_number(dev, p0_val); -+ if (!obj) -+ printk("No obj %d\n", (int)p0_val); -+ else { -+ if(p1_val == 0) -+ nand_chunk = obj->hdr_chunk; -+ else -+ nand_chunk = -+ yaffs_find_chunk_in_file(obj, -+ p1_val, NULL); -+ printk("Nand chunk for %d:%d is %d\n", -+ (int)p0_val, (int)p1_val, nand_chunk); -+ } -+ } -+ } -+ -+ mutex_unlock(&yaffs_context_lock); -+ -+ return count; -+} -+ -+static int yaffs_proc_write(struct file *file, const char *buf, -+ unsigned long count, void *data) -+{ -+ if (buf[0] == '.') -+ return yaffs_proc_debug_write(file, buf, count, data); -+ return yaffs_proc_write_trace_options(file, buf, count, data); -+} -+#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) */ -+ -+/* Stuff to handle installation of file systems */ -+struct file_system_to_install { -+ struct file_system_type *fst; -+ int installed; -+}; -+ -+static struct file_system_to_install fs_to_install[] = { -+ {&yaffs_fs_type, 0}, -+ {&yaffs2_fs_type, 0}, -+ {NULL, 0} -+}; -+ -+static int __init init_yaffs_fs(void) -+{ -+ int error = 0; -+ struct file_system_to_install *fsinst; -+ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs built " __DATE__ " " __TIME__ " Installing."); -+ -+ mutex_init(&yaffs_context_lock); -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) -+ /* Install the proc_fs entries */ -+ my_proc_entry = create_proc_entry("yaffs", -+ S_IRUGO | S_IFREG, YPROC_ROOT); -+ -+ if (my_proc_entry) { -+ my_proc_entry->write_proc = yaffs_proc_write; -+ my_proc_entry->read_proc = yaffs_proc_read; -+ my_proc_entry->data = NULL; -+ } else { -+ return -ENOMEM; -+ } -+#endif -+ -+ /* Now add the file system entries */ -+ -+ fsinst = fs_to_install; -+ -+ while (fsinst->fst && !error) { -+ error = register_filesystem(fsinst->fst); -+ if (!error) -+ fsinst->installed = 1; -+ fsinst++; -+ } -+ -+ /* Any errors? uninstall */ -+ if (error) { -+ fsinst = fs_to_install; -+ -+ while (fsinst->fst) { -+ if (fsinst->installed) { -+ unregister_filesystem(fsinst->fst); -+ fsinst->installed = 0; -+ } -+ fsinst++; -+ } -+ } -+ -+ return error; -+} -+ -+static void __exit exit_yaffs_fs(void) -+{ -+ -+ struct file_system_to_install *fsinst; -+ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "yaffs built " __DATE__ " " __TIME__ " removing."); -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) -+ remove_proc_entry("yaffs", YPROC_ROOT); -+#endif -+ -+ fsinst = fs_to_install; -+ -+ while (fsinst->fst) { -+ if (fsinst->installed) { -+ unregister_filesystem(fsinst->fst); -+ fsinst->installed = 0; -+ } -+ fsinst++; -+ } -+} -+ -+module_init(init_yaffs_fs) -+ module_exit(exit_yaffs_fs) -+ -+ MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); -+MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2011"); -+MODULE_LICENSE("GPL"); -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.c linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,422 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_yaffs1.h" -+#include "yportenv.h" -+#include "yaffs_trace.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_nand.h" -+#include "yaffs_attribs.h" -+ -+int yaffs1_scan(struct yaffs_dev *dev) -+{ -+ struct yaffs_ext_tags tags; -+ int blk; -+ int result; -+ int chunk; -+ int c; -+ int deleted; -+ enum yaffs_block_state state; -+ LIST_HEAD(hard_list); -+ struct yaffs_block_info *bi; -+ u32 seq_number; -+ struct yaffs_obj_hdr *oh; -+ struct yaffs_obj *in; -+ struct yaffs_obj *parent; -+ int alloc_failed = 0; -+ struct yaffs_shadow_fixer *shadow_fixers = NULL; -+ u8 *chunk_data; -+ -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "yaffs1_scan starts intstartblk %d intendblk %d...", -+ dev->internal_start_block, dev->internal_end_block); -+ -+ chunk_data = yaffs_get_temp_buffer(dev); -+ -+ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; -+ -+ /* Scan all the blocks to determine their state */ -+ bi = dev->block_info; -+ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; -+ blk++) { -+ yaffs_clear_chunk_bits(dev, blk); -+ bi->pages_in_use = 0; -+ bi->soft_del_pages = 0; -+ -+ yaffs_query_init_block_state(dev, blk, &state, &seq_number); -+ -+ bi->block_state = state; -+ bi->seq_number = seq_number; -+ -+ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) -+ bi->block_state = state = YAFFS_BLOCK_STATE_DEAD; -+ -+ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, -+ "Block scanning block %d state %d seq %d", -+ blk, state, seq_number); -+ -+ if (state == YAFFS_BLOCK_STATE_DEAD) { -+ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, -+ "block %d is bad", blk); -+ } else if (state == YAFFS_BLOCK_STATE_EMPTY) { -+ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "Block empty "); -+ dev->n_erased_blocks++; -+ dev->n_free_chunks += dev->param.chunks_per_block; -+ } -+ bi++; -+ } -+ -+ /* For each block.... */ -+ for (blk = dev->internal_start_block; -+ !alloc_failed && blk <= dev->internal_end_block; blk++) { -+ -+ cond_resched(); -+ -+ bi = yaffs_get_block_info(dev, blk); -+ state = bi->block_state; -+ -+ deleted = 0; -+ -+ /* For each chunk in each block that needs scanning.... */ -+ for (c = 0; -+ !alloc_failed && c < dev->param.chunks_per_block && -+ state == YAFFS_BLOCK_STATE_NEEDS_SCAN; c++) { -+ /* Read the tags and decide what to do */ -+ chunk = blk * dev->param.chunks_per_block + c; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, -+ &tags); -+ -+ /* Let's have a good look at this chunk... */ -+ -+ if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED || -+ tags.is_deleted) { -+ /* YAFFS1 only... -+ * A deleted chunk -+ */ -+ deleted++; -+ dev->n_free_chunks++; -+ } else if (!tags.chunk_used) { -+ /* An unassigned chunk in the block -+ * This means that either the block is empty or -+ * this is the one being allocated from -+ */ -+ -+ if (c == 0) { -+ /* We're looking at the first chunk in -+ *the block so the block is unused */ -+ state = YAFFS_BLOCK_STATE_EMPTY; -+ dev->n_erased_blocks++; -+ } else { -+ /* this is the block being allocated */ -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ " Allocating from %d %d", -+ blk, c); -+ state = YAFFS_BLOCK_STATE_ALLOCATING; -+ dev->alloc_block = blk; -+ dev->alloc_page = c; -+ dev->alloc_block_finder = blk; -+ -+ } -+ -+ dev->n_free_chunks += -+ (dev->param.chunks_per_block - c); -+ } else if (tags.chunk_id > 0) { -+ /* chunk_id > 0 so it is a data chunk... */ -+ unsigned int endpos; -+ -+ yaffs_set_chunk_bit(dev, blk, c); -+ bi->pages_in_use++; -+ -+ in = yaffs_find_or_create_by_number(dev, -+ tags.obj_id, -+ YAFFS_OBJECT_TYPE_FILE); -+ /* PutChunkIntoFile checks for a clash -+ * (two data chunks with the same chunk_id). -+ */ -+ -+ if (!in) -+ alloc_failed = 1; -+ -+ if (in) { -+ if (!yaffs_put_chunk_in_file -+ (in, tags.chunk_id, chunk, 1)) -+ alloc_failed = 1; -+ } -+ -+ endpos = -+ (tags.chunk_id - 1) * -+ dev->data_bytes_per_chunk + -+ tags.n_bytes; -+ if (in && -+ in->variant_type == -+ YAFFS_OBJECT_TYPE_FILE && -+ in->variant.file_variant.scanned_size < -+ endpos) { -+ in->variant.file_variant.scanned_size = -+ endpos; -+ if (!dev->param.use_header_file_size) { -+ in->variant. -+ file_variant.file_size = -+ in->variant. -+ file_variant.scanned_size; -+ } -+ -+ } -+ } else { -+ /* chunk_id == 0, so it is an ObjectHeader. -+ * Make the object -+ */ -+ yaffs_set_chunk_bit(dev, blk, c); -+ bi->pages_in_use++; -+ -+ result = yaffs_rd_chunk_tags_nand(dev, chunk, -+ chunk_data, -+ NULL); -+ -+ oh = (struct yaffs_obj_hdr *)chunk_data; -+ -+ in = yaffs_find_by_number(dev, tags.obj_id); -+ if (in && in->variant_type != oh->type) { -+ /* This should not happen, but somehow -+ * Wev'e ended up with an obj_id that -+ * has been reused but not yet deleted, -+ * and worse still it has changed type. -+ * Delete the old object. -+ */ -+ -+ yaffs_del_obj(in); -+ in = NULL; -+ } -+ -+ in = yaffs_find_or_create_by_number(dev, -+ tags.obj_id, -+ oh->type); -+ -+ if (!in) -+ alloc_failed = 1; -+ -+ if (in && oh->shadows_obj > 0) { -+ -+ struct yaffs_shadow_fixer *fixer; -+ fixer = -+ kmalloc(sizeof -+ (struct yaffs_shadow_fixer), -+ GFP_NOFS); -+ if (fixer) { -+ fixer->next = shadow_fixers; -+ shadow_fixers = fixer; -+ fixer->obj_id = tags.obj_id; -+ fixer->shadowed_id = -+ oh->shadows_obj; -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ " Shadow fixer: %d shadows %d", -+ fixer->obj_id, -+ fixer->shadowed_id); -+ -+ } -+ -+ } -+ -+ if (in && in->valid) { -+ /* We have already filled this one. -+ * We have a duplicate and need to -+ * resolve it. */ -+ -+ unsigned existing_serial = in->serial; -+ unsigned new_serial = -+ tags.serial_number; -+ -+ if (((existing_serial + 1) & 3) == -+ new_serial) { -+ /* Use new one - destroy the -+ * exisiting one */ -+ yaffs_chunk_del(dev, -+ in->hdr_chunk, -+ 1, __LINE__); -+ in->valid = 0; -+ } else { -+ /* Use existing - destroy -+ * this one. */ -+ yaffs_chunk_del(dev, chunk, 1, -+ __LINE__); -+ } -+ } -+ -+ if (in && !in->valid && -+ (tags.obj_id == YAFFS_OBJECTID_ROOT || -+ tags.obj_id == -+ YAFFS_OBJECTID_LOSTNFOUND)) { -+ /* We only load some info, don't fiddle -+ * with directory structure */ -+ in->valid = 1; -+ in->variant_type = oh->type; -+ -+ in->yst_mode = oh->yst_mode; -+ yaffs_load_attribs(in, oh); -+ in->hdr_chunk = chunk; -+ in->serial = tags.serial_number; -+ -+ } else if (in && !in->valid) { -+ /* we need to load this info */ -+ -+ in->valid = 1; -+ in->variant_type = oh->type; -+ -+ in->yst_mode = oh->yst_mode; -+ yaffs_load_attribs(in, oh); -+ in->hdr_chunk = chunk; -+ in->serial = tags.serial_number; -+ -+ yaffs_set_obj_name_from_oh(in, oh); -+ in->dirty = 0; -+ -+ /* directory stuff... -+ * hook up to parent -+ */ -+ -+ parent = -+ yaffs_find_or_create_by_number -+ (dev, oh->parent_obj_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ if (!parent) -+ alloc_failed = 1; -+ if (parent && parent->variant_type == -+ YAFFS_OBJECT_TYPE_UNKNOWN) { -+ /* Set up as a directory */ -+ parent->variant_type = -+ YAFFS_OBJECT_TYPE_DIRECTORY; -+ INIT_LIST_HEAD(&parent-> -+ variant.dir_variant. -+ children); -+ } else if (!parent || -+ parent->variant_type != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { -+ /* Hoosterman, a problem.... -+ * We're trying to use a -+ * non-directory as a directory -+ */ -+ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." -+ ); -+ parent = dev->lost_n_found; -+ } -+ -+ yaffs_add_obj_to_dir(parent, in); -+ -+ switch (in->variant_type) { -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* Todo got a problem */ -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ if (dev->param. -+ use_header_file_size) -+ in->variant. -+ file_variant.file_size -+ = yaffs_oh_to_size(oh); -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ in->variant. -+ hardlink_variant.equiv_id = -+ oh->equiv_id; -+ list_add(&in->hard_links, -+ &hard_list); -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ in->variant.symlink_variant. -+ alias = -+ yaffs_clone_str(oh->alias); -+ if (!in->variant. -+ symlink_variant.alias) -+ alloc_failed = 1; -+ break; -+ } -+ } -+ } -+ } -+ -+ if (state == YAFFS_BLOCK_STATE_NEEDS_SCAN) { -+ /* If we got this far while scanning, -+ * then the block is fully allocated. */ -+ state = YAFFS_BLOCK_STATE_FULL; -+ } -+ -+ if (state == YAFFS_BLOCK_STATE_ALLOCATING) { -+ /* If the block was partially allocated then -+ * treat it as fully allocated. */ -+ state = YAFFS_BLOCK_STATE_FULL; -+ dev->alloc_block = -1; -+ } -+ -+ bi->block_state = state; -+ -+ /* Now let's see if it was dirty */ -+ if (bi->pages_in_use == 0 && -+ !bi->has_shrink_hdr && -+ bi->block_state == YAFFS_BLOCK_STATE_FULL) -+ yaffs_block_became_dirty(dev, blk); -+ } -+ -+ /* Ok, we've done all the scanning. -+ * Fix up the hard link chains. -+ * We should now have scanned all the objects, now it's time to add -+ * these hardlinks. -+ */ -+ -+ yaffs_link_fixup(dev, &hard_list); -+ -+ /* -+ * Fix up any shadowed objects. -+ * There should not be more than one of these. -+ */ -+ { -+ struct yaffs_shadow_fixer *fixer; -+ struct yaffs_obj *obj; -+ -+ while (shadow_fixers) { -+ fixer = shadow_fixers; -+ shadow_fixers = fixer->next; -+ /* Complete the rename transaction by deleting the -+ * shadowed object then setting the object header -+ to unshadowed. -+ */ -+ obj = yaffs_find_by_number(dev, fixer->shadowed_id); -+ if (obj) -+ yaffs_del_obj(obj); -+ -+ obj = yaffs_find_by_number(dev, fixer->obj_id); -+ -+ if (obj) -+ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); -+ -+ kfree(fixer); -+ } -+ } -+ -+ yaffs_release_temp_buffer(dev, chunk_data); -+ -+ if (alloc_failed) -+ return YAFFS_FAIL; -+ -+ yaffs_trace(YAFFS_TRACE_SCAN, "yaffs1_scan ends"); -+ -+ return YAFFS_OK; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.h linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,22 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_YAFFS1_H__ -+#define __YAFFS_YAFFS1_H__ -+ -+#include "yaffs_guts.h" -+int yaffs1_scan(struct yaffs_dev *dev); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.c linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.c ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.c 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,1534 @@ -+/* -+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include "yaffs_guts.h" -+#include "yaffs_trace.h" -+#include "yaffs_yaffs2.h" -+#include "yaffs_checkptrw.h" -+#include "yaffs_bitmap.h" -+#include "yaffs_nand.h" -+#include "yaffs_getblockinfo.h" -+#include "yaffs_verify.h" -+#include "yaffs_attribs.h" -+#include "yaffs_summary.h" -+ -+/* -+ * Checkpoints are really no benefit on very small partitions. -+ * -+ * To save space on small partitions don't bother with checkpoints unless -+ * the partition is at least this big. -+ */ -+#define YAFFS_CHECKPOINT_MIN_BLOCKS 60 -+#define YAFFS_SMALL_HOLE_THRESHOLD 4 -+ -+/* -+ * Oldest Dirty Sequence Number handling. -+ */ -+ -+/* yaffs_calc_oldest_dirty_seq() -+ * yaffs2_find_oldest_dirty_seq() -+ * Calculate the oldest dirty sequence number if we don't know it. -+ */ -+void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev) -+{ -+ int i; -+ unsigned seq; -+ unsigned block_no = 0; -+ struct yaffs_block_info *b; -+ -+ if (!dev->param.is_yaffs2) -+ return; -+ -+ /* Find the oldest dirty sequence number. */ -+ seq = dev->seq_number + 1; -+ b = dev->block_info; -+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { -+ if (b->block_state == YAFFS_BLOCK_STATE_FULL && -+ (b->pages_in_use - b->soft_del_pages) < -+ dev->param.chunks_per_block && -+ b->seq_number < seq) { -+ seq = b->seq_number; -+ block_no = i; -+ } -+ b++; -+ } -+ -+ if (block_no) { -+ dev->oldest_dirty_seq = seq; -+ dev->oldest_dirty_block = block_no; -+ } -+} -+ -+void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev) -+{ -+ if (!dev->param.is_yaffs2) -+ return; -+ -+ if (!dev->oldest_dirty_seq) -+ yaffs_calc_oldest_dirty_seq(dev); -+} -+ -+/* -+ * yaffs_clear_oldest_dirty_seq() -+ * Called when a block is erased or marked bad. (ie. when its seq_number -+ * becomes invalid). If the value matches the oldest then we clear -+ * dev->oldest_dirty_seq to force its recomputation. -+ */ -+void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi) -+{ -+ -+ if (!dev->param.is_yaffs2) -+ return; -+ -+ if (!bi || bi->seq_number == dev->oldest_dirty_seq) { -+ dev->oldest_dirty_seq = 0; -+ dev->oldest_dirty_block = 0; -+ } -+} -+ -+/* -+ * yaffs2_update_oldest_dirty_seq() -+ * Update the oldest dirty sequence number whenever we dirty a block. -+ * Only do this if the oldest_dirty_seq is actually being tracked. -+ */ -+void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no, -+ struct yaffs_block_info *bi) -+{ -+ if (!dev->param.is_yaffs2) -+ return; -+ -+ if (dev->oldest_dirty_seq) { -+ if (dev->oldest_dirty_seq > bi->seq_number) { -+ dev->oldest_dirty_seq = bi->seq_number; -+ dev->oldest_dirty_block = block_no; -+ } -+ } -+} -+ -+int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi) -+{ -+ -+ if (!dev->param.is_yaffs2) -+ return 1; /* disqualification only applies to yaffs2. */ -+ -+ if (!bi->has_shrink_hdr) -+ return 1; /* can gc */ -+ -+ yaffs2_find_oldest_dirty_seq(dev); -+ -+ /* Can't do gc of this block if there are any blocks older than this -+ * one that have discarded pages. -+ */ -+ return (bi->seq_number <= dev->oldest_dirty_seq); -+} -+ -+/* -+ * yaffs2_find_refresh_block() -+ * periodically finds the oldest full block by sequence number for refreshing. -+ * Only for yaffs2. -+ */ -+u32 yaffs2_find_refresh_block(struct yaffs_dev *dev) -+{ -+ u32 b; -+ u32 oldest = 0; -+ u32 oldest_seq = 0; -+ struct yaffs_block_info *bi; -+ -+ if (!dev->param.is_yaffs2) -+ return oldest; -+ -+ /* -+ * If refresh period < 10 then refreshing is disabled. -+ */ -+ if (dev->param.refresh_period < 10) -+ return oldest; -+ -+ /* -+ * Fix broken values. -+ */ -+ if (dev->refresh_skip > dev->param.refresh_period) -+ dev->refresh_skip = dev->param.refresh_period; -+ -+ if (dev->refresh_skip > 0) -+ return oldest; -+ -+ /* -+ * Refresh skip is now zero. -+ * We'll do a refresh this time around.... -+ * Update the refresh skip and find the oldest block. -+ */ -+ dev->refresh_skip = dev->param.refresh_period; -+ dev->refresh_count++; -+ bi = dev->block_info; -+ for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_FULL) { -+ -+ if (oldest < 1 || bi->seq_number < oldest_seq) { -+ oldest = b; -+ oldest_seq = bi->seq_number; -+ } -+ } -+ bi++; -+ } -+ -+ if (oldest > 0) { -+ yaffs_trace(YAFFS_TRACE_GC, -+ "GC refresh count %d selected block %d with seq_number %d", -+ dev->refresh_count, oldest, oldest_seq); -+ } -+ -+ return oldest; -+} -+ -+int yaffs2_checkpt_required(struct yaffs_dev *dev) -+{ -+ int nblocks; -+ -+ if (!dev->param.is_yaffs2) -+ return 0; -+ -+ nblocks = dev->internal_end_block - dev->internal_start_block + 1; -+ -+ return !dev->param.skip_checkpt_wr && -+ !dev->read_only && (nblocks >= YAFFS_CHECKPOINT_MIN_BLOCKS); -+} -+ -+int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev) -+{ -+ int retval; -+ int n_bytes = 0; -+ int n_blocks; -+ int dev_blocks; -+ -+ if (!dev->param.is_yaffs2) -+ return 0; -+ -+ if (!dev->checkpoint_blocks_required && yaffs2_checkpt_required(dev)) { -+ /* Not a valid value so recalculate */ -+ dev_blocks = dev->param.end_block - dev->param.start_block + 1; -+ n_bytes += sizeof(struct yaffs_checkpt_validity); -+ n_bytes += sizeof(struct yaffs_checkpt_dev); -+ n_bytes += dev_blocks * sizeof(struct yaffs_block_info); -+ n_bytes += dev_blocks * dev->chunk_bit_stride; -+ n_bytes += -+ (sizeof(struct yaffs_checkpt_obj) + sizeof(u32)) * -+ dev->n_obj; -+ n_bytes += (dev->tnode_size + sizeof(u32)) * dev->n_tnodes; -+ n_bytes += sizeof(struct yaffs_checkpt_validity); -+ n_bytes += sizeof(u32); /* checksum */ -+ -+ /* Round up and add 2 blocks to allow for some bad blocks, -+ * so add 3 */ -+ -+ n_blocks = -+ (n_bytes / -+ (dev->data_bytes_per_chunk * -+ dev->param.chunks_per_block)) + 3; -+ -+ dev->checkpoint_blocks_required = n_blocks; -+ } -+ -+ retval = dev->checkpoint_blocks_required - dev->blocks_in_checkpt; -+ if (retval < 0) -+ retval = 0; -+ return retval; -+} -+ -+/*--------------------- Checkpointing --------------------*/ -+ -+static int yaffs2_wr_checkpt_validity_marker(struct yaffs_dev *dev, int head) -+{ -+ struct yaffs_checkpt_validity cp; -+ -+ memset(&cp, 0, sizeof(cp)); -+ -+ cp.struct_type = sizeof(cp); -+ cp.magic = YAFFS_MAGIC; -+ cp.version = YAFFS_CHECKPOINT_VERSION; -+ cp.head = (head) ? 1 : 0; -+ -+ return (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)) ? 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_validity_marker(struct yaffs_dev *dev, int head) -+{ -+ struct yaffs_checkpt_validity cp; -+ int ok; -+ -+ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ -+ if (ok) -+ ok = (cp.struct_type == sizeof(cp)) && -+ (cp.magic == YAFFS_MAGIC) && -+ (cp.version == YAFFS_CHECKPOINT_VERSION) && -+ (cp.head == ((head) ? 1 : 0)); -+ return ok ? 1 : 0; -+} -+ -+static void yaffs2_dev_to_checkpt_dev(struct yaffs_checkpt_dev *cp, -+ struct yaffs_dev *dev) -+{ -+ cp->n_erased_blocks = dev->n_erased_blocks; -+ cp->alloc_block = dev->alloc_block; -+ cp->alloc_page = dev->alloc_page; -+ cp->n_free_chunks = dev->n_free_chunks; -+ -+ cp->n_deleted_files = dev->n_deleted_files; -+ cp->n_unlinked_files = dev->n_unlinked_files; -+ cp->n_bg_deletions = dev->n_bg_deletions; -+ cp->seq_number = dev->seq_number; -+ -+} -+ -+static void yaffs_checkpt_dev_to_dev(struct yaffs_dev *dev, -+ struct yaffs_checkpt_dev *cp) -+{ -+ dev->n_erased_blocks = cp->n_erased_blocks; -+ dev->alloc_block = cp->alloc_block; -+ dev->alloc_page = cp->alloc_page; -+ dev->n_free_chunks = cp->n_free_chunks; -+ -+ dev->n_deleted_files = cp->n_deleted_files; -+ dev->n_unlinked_files = cp->n_unlinked_files; -+ dev->n_bg_deletions = cp->n_bg_deletions; -+ dev->seq_number = cp->seq_number; -+} -+ -+static int yaffs2_wr_checkpt_dev(struct yaffs_dev *dev) -+{ -+ struct yaffs_checkpt_dev cp; -+ u32 n_bytes; -+ u32 n_blocks = dev->internal_end_block - dev->internal_start_block + 1; -+ int ok; -+ -+ /* Write device runtime values */ -+ yaffs2_dev_to_checkpt_dev(&cp, dev); -+ cp.struct_type = sizeof(cp); -+ -+ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (!ok) -+ return 0; -+ -+ /* Write block info */ -+ n_bytes = n_blocks * sizeof(struct yaffs_block_info); -+ ok = (yaffs2_checkpt_wr(dev, dev->block_info, n_bytes) == n_bytes); -+ if (!ok) -+ return 0; -+ -+ /* Write chunk bits */ -+ n_bytes = n_blocks * dev->chunk_bit_stride; -+ ok = (yaffs2_checkpt_wr(dev, dev->chunk_bits, n_bytes) == n_bytes); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_dev(struct yaffs_dev *dev) -+{ -+ struct yaffs_checkpt_dev cp; -+ u32 n_bytes; -+ u32 n_blocks = -+ (dev->internal_end_block - dev->internal_start_block + 1); -+ int ok; -+ -+ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (!ok) -+ return 0; -+ -+ if (cp.struct_type != sizeof(cp)) -+ return 0; -+ -+ yaffs_checkpt_dev_to_dev(dev, &cp); -+ -+ n_bytes = n_blocks * sizeof(struct yaffs_block_info); -+ -+ ok = (yaffs2_checkpt_rd(dev, dev->block_info, n_bytes) == n_bytes); -+ -+ if (!ok) -+ return 0; -+ -+ n_bytes = n_blocks * dev->chunk_bit_stride; -+ -+ ok = (yaffs2_checkpt_rd(dev, dev->chunk_bits, n_bytes) == n_bytes); -+ -+ return ok ? 1 : 0; -+} -+ -+static void yaffs2_obj_checkpt_obj(struct yaffs_checkpt_obj *cp, -+ struct yaffs_obj *obj) -+{ -+ cp->obj_id = obj->obj_id; -+ cp->parent_id = (obj->parent) ? obj->parent->obj_id : 0; -+ cp->hdr_chunk = obj->hdr_chunk; -+ cp->variant_type = obj->variant_type; -+ cp->deleted = obj->deleted; -+ cp->soft_del = obj->soft_del; -+ cp->unlinked = obj->unlinked; -+ cp->fake = obj->fake; -+ cp->rename_allowed = obj->rename_allowed; -+ cp->unlink_allowed = obj->unlink_allowed; -+ cp->serial = obj->serial; -+ cp->n_data_chunks = obj->n_data_chunks; -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ cp->size_or_equiv_obj = obj->variant.file_variant.file_size; -+ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ cp->size_or_equiv_obj = obj->variant.hardlink_variant.equiv_id; -+} -+ -+static int yaffs2_checkpt_obj_to_obj(struct yaffs_obj *obj, -+ struct yaffs_checkpt_obj *cp) -+{ -+ struct yaffs_obj *parent; -+ -+ if (obj->variant_type != cp->variant_type) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "Checkpoint read object %d type %d chunk %d does not match existing object type %d", -+ cp->obj_id, cp->variant_type, cp->hdr_chunk, -+ obj->variant_type); -+ return 0; -+ } -+ -+ obj->obj_id = cp->obj_id; -+ -+ if (cp->parent_id) -+ parent = yaffs_find_or_create_by_number(obj->my_dev, -+ cp->parent_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ else -+ parent = NULL; -+ -+ if (parent) { -+ if (parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { -+ yaffs_trace(YAFFS_TRACE_ALWAYS, -+ "Checkpoint read object %d parent %d type %d chunk %d Parent type, %d, not directory", -+ cp->obj_id, cp->parent_id, -+ cp->variant_type, cp->hdr_chunk, -+ parent->variant_type); -+ return 0; -+ } -+ yaffs_add_obj_to_dir(parent, obj); -+ } -+ -+ obj->hdr_chunk = cp->hdr_chunk; -+ obj->variant_type = cp->variant_type; -+ obj->deleted = cp->deleted; -+ obj->soft_del = cp->soft_del; -+ obj->unlinked = cp->unlinked; -+ obj->fake = cp->fake; -+ obj->rename_allowed = cp->rename_allowed; -+ obj->unlink_allowed = cp->unlink_allowed; -+ obj->serial = cp->serial; -+ obj->n_data_chunks = cp->n_data_chunks; -+ -+ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) -+ obj->variant.file_variant.file_size = cp->size_or_equiv_obj; -+ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) -+ obj->variant.hardlink_variant.equiv_id = cp->size_or_equiv_obj; -+ -+ if (obj->hdr_chunk > 0) -+ obj->lazy_loaded = 1; -+ return 1; -+} -+ -+static int yaffs2_checkpt_tnode_worker(struct yaffs_obj *in, -+ struct yaffs_tnode *tn, u32 level, -+ int chunk_offset) -+{ -+ int i; -+ struct yaffs_dev *dev = in->my_dev; -+ int ok = 1; -+ u32 base_offset; -+ -+ if (!tn) -+ return 1; -+ -+ if (level > 0) { -+ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { -+ if (!tn->internal[i]) -+ continue; -+ ok = yaffs2_checkpt_tnode_worker(in, -+ tn->internal[i], -+ level - 1, -+ (chunk_offset << -+ YAFFS_TNODES_INTERNAL_BITS) + i); -+ } -+ return ok; -+ } -+ -+ /* Level 0 tnode */ -+ base_offset = chunk_offset << YAFFS_TNODES_LEVEL0_BITS; -+ ok = (yaffs2_checkpt_wr(dev, &base_offset, sizeof(base_offset)) == -+ sizeof(base_offset)); -+ if (ok) -+ ok = (yaffs2_checkpt_wr(dev, tn, dev->tnode_size) == -+ dev->tnode_size); -+ -+ return ok; -+} -+ -+static int yaffs2_wr_checkpt_tnodes(struct yaffs_obj *obj) -+{ -+ u32 end_marker = ~0; -+ int ok = 1; -+ -+ if (obj->variant_type != YAFFS_OBJECT_TYPE_FILE) -+ return ok; -+ -+ ok = yaffs2_checkpt_tnode_worker(obj, -+ obj->variant.file_variant.top, -+ obj->variant.file_variant. -+ top_level, 0); -+ if (ok) -+ ok = (yaffs2_checkpt_wr(obj->my_dev, &end_marker, -+ sizeof(end_marker)) == sizeof(end_marker)); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_tnodes(struct yaffs_obj *obj) -+{ -+ u32 base_chunk; -+ int ok = 1; -+ struct yaffs_dev *dev = obj->my_dev; -+ struct yaffs_file_var *file_stuct_ptr = &obj->variant.file_variant; -+ struct yaffs_tnode *tn; -+ int nread = 0; -+ -+ ok = (yaffs2_checkpt_rd(dev, &base_chunk, sizeof(base_chunk)) == -+ sizeof(base_chunk)); -+ -+ while (ok && (~base_chunk)) { -+ nread++; -+ /* Read level 0 tnode */ -+ -+ tn = yaffs_get_tnode(dev); -+ if (tn) -+ ok = (yaffs2_checkpt_rd(dev, tn, dev->tnode_size) == -+ dev->tnode_size); -+ else -+ ok = 0; -+ -+ if (tn && ok) -+ ok = yaffs_add_find_tnode_0(dev, -+ file_stuct_ptr, -+ base_chunk, tn) ? 1 : 0; -+ -+ if (ok) -+ ok = (yaffs2_checkpt_rd -+ (dev, &base_chunk, -+ sizeof(base_chunk)) == sizeof(base_chunk)); -+ } -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "Checkpoint read tnodes %d records, last %d. ok %d", -+ nread, base_chunk, ok); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_wr_checkpt_objs(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_checkpt_obj cp; -+ int i; -+ int ok = 1; -+ struct list_head *lh; -+ -+ /* Iterate through the objects in each hash entry, -+ * dumping them to the checkpointing stream. -+ */ -+ -+ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { -+ list_for_each(lh, &dev->obj_bucket[i].list) { -+ obj = list_entry(lh, struct yaffs_obj, hash_link); -+ if (!obj->defered_free) { -+ yaffs2_obj_checkpt_obj(&cp, obj); -+ cp.struct_type = sizeof(cp); -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "Checkpoint write object %d parent %d type %d chunk %d obj addr %p", -+ cp.obj_id, cp.parent_id, -+ cp.variant_type, cp.hdr_chunk, obj); -+ -+ ok = (yaffs2_checkpt_wr(dev, &cp, -+ sizeof(cp)) == sizeof(cp)); -+ -+ if (ok && -+ obj->variant_type == -+ YAFFS_OBJECT_TYPE_FILE) -+ ok = yaffs2_wr_checkpt_tnodes(obj); -+ } -+ } -+ } -+ -+ /* Dump end of list */ -+ memset(&cp, 0xff, sizeof(struct yaffs_checkpt_obj)); -+ cp.struct_type = sizeof(cp); -+ -+ if (ok) -+ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_rd_checkpt_objs(struct yaffs_dev *dev) -+{ -+ struct yaffs_obj *obj; -+ struct yaffs_checkpt_obj cp; -+ int ok = 1; -+ int done = 0; -+ LIST_HEAD(hard_list); -+ -+ -+ while (ok && !done) { -+ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); -+ if (cp.struct_type != sizeof(cp)) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "struct size %d instead of %d ok %d", -+ cp.struct_type, (int)sizeof(cp), ok); -+ ok = 0; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "Checkpoint read object %d parent %d type %d chunk %d ", -+ cp.obj_id, cp.parent_id, cp.variant_type, -+ cp.hdr_chunk); -+ -+ if (ok && cp.obj_id == ~0) { -+ done = 1; -+ } else if (ok) { -+ obj = -+ yaffs_find_or_create_by_number(dev, cp.obj_id, -+ cp.variant_type); -+ if (obj) { -+ ok = yaffs2_checkpt_obj_to_obj(obj, &cp); -+ if (!ok) -+ break; -+ if (obj->variant_type == -+ YAFFS_OBJECT_TYPE_FILE) { -+ ok = yaffs2_rd_checkpt_tnodes(obj); -+ } else if (obj->variant_type == -+ YAFFS_OBJECT_TYPE_HARDLINK) { -+ list_add(&obj->hard_links, &hard_list); -+ } -+ } else { -+ ok = 0; -+ } -+ } -+ } -+ -+ if (ok) -+ yaffs_link_fixup(dev, &hard_list); -+ -+ return ok ? 1 : 0; -+} -+ -+static int yaffs2_wr_checkpt_sum(struct yaffs_dev *dev) -+{ -+ u32 checkpt_sum; -+ int ok; -+ -+ yaffs2_get_checkpt_sum(dev, &checkpt_sum); -+ -+ ok = (yaffs2_checkpt_wr(dev, &checkpt_sum, sizeof(checkpt_sum)) == -+ sizeof(checkpt_sum)); -+ -+ if (!ok) -+ return 0; -+ -+ return 1; -+} -+ -+static int yaffs2_rd_checkpt_sum(struct yaffs_dev *dev) -+{ -+ u32 checkpt_sum0; -+ u32 checkpt_sum1; -+ int ok; -+ -+ yaffs2_get_checkpt_sum(dev, &checkpt_sum0); -+ -+ ok = (yaffs2_checkpt_rd(dev, &checkpt_sum1, sizeof(checkpt_sum1)) == -+ sizeof(checkpt_sum1)); -+ -+ if (!ok) -+ return 0; -+ -+ if (checkpt_sum0 != checkpt_sum1) -+ return 0; -+ -+ return 1; -+} -+ -+static int yaffs2_wr_checkpt_data(struct yaffs_dev *dev) -+{ -+ int ok = 1; -+ -+ if (!yaffs2_checkpt_required(dev)) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "skipping checkpoint write"); -+ ok = 0; -+ } -+ -+ if (ok) -+ ok = yaffs2_checkpt_open(dev, 1); -+ -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "write checkpoint validity"); -+ ok = yaffs2_wr_checkpt_validity_marker(dev, 1); -+ } -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "write checkpoint device"); -+ ok = yaffs2_wr_checkpt_dev(dev); -+ } -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "write checkpoint objects"); -+ ok = yaffs2_wr_checkpt_objs(dev); -+ } -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "write checkpoint validity"); -+ ok = yaffs2_wr_checkpt_validity_marker(dev, 0); -+ } -+ -+ if (ok) -+ ok = yaffs2_wr_checkpt_sum(dev); -+ -+ if (!yaffs_checkpt_close(dev)) -+ ok = 0; -+ -+ if (ok) -+ dev->is_checkpointed = 1; -+ else -+ dev->is_checkpointed = 0; -+ -+ return dev->is_checkpointed; -+} -+ -+static int yaffs2_rd_checkpt_data(struct yaffs_dev *dev) -+{ -+ int ok = 1; -+ -+ if (!dev->param.is_yaffs2) -+ ok = 0; -+ -+ if (ok && dev->param.skip_checkpt_rd) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "skipping checkpoint read"); -+ ok = 0; -+ } -+ -+ if (ok) -+ ok = yaffs2_checkpt_open(dev, 0); /* open for read */ -+ -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "read checkpoint validity"); -+ ok = yaffs2_rd_checkpt_validity_marker(dev, 1); -+ } -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "read checkpoint device"); -+ ok = yaffs2_rd_checkpt_dev(dev); -+ } -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "read checkpoint objects"); -+ ok = yaffs2_rd_checkpt_objs(dev); -+ } -+ if (ok) { -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "read checkpoint validity"); -+ ok = yaffs2_rd_checkpt_validity_marker(dev, 0); -+ } -+ -+ if (ok) { -+ ok = yaffs2_rd_checkpt_sum(dev); -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "read checkpoint checksum %d", ok); -+ } -+ -+ if (!yaffs_checkpt_close(dev)) -+ ok = 0; -+ -+ if (ok) -+ dev->is_checkpointed = 1; -+ else -+ dev->is_checkpointed = 0; -+ -+ return ok ? 1 : 0; -+} -+ -+void yaffs2_checkpt_invalidate(struct yaffs_dev *dev) -+{ -+ if (dev->is_checkpointed || dev->blocks_in_checkpt > 0) { -+ dev->is_checkpointed = 0; -+ yaffs2_checkpt_invalidate_stream(dev); -+ } -+ if (dev->param.sb_dirty_fn) -+ dev->param.sb_dirty_fn(dev); -+} -+ -+int yaffs_checkpoint_save(struct yaffs_dev *dev) -+{ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "save entry: is_checkpointed %d", -+ dev->is_checkpointed); -+ -+ yaffs_verify_objects(dev); -+ yaffs_verify_blocks(dev); -+ yaffs_verify_free_chunks(dev); -+ -+ if (!dev->is_checkpointed) { -+ yaffs2_checkpt_invalidate(dev); -+ yaffs2_wr_checkpt_data(dev); -+ } -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT | YAFFS_TRACE_MOUNT, -+ "save exit: is_checkpointed %d", -+ dev->is_checkpointed); -+ -+ return dev->is_checkpointed; -+} -+ -+int yaffs2_checkpt_restore(struct yaffs_dev *dev) -+{ -+ int retval; -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "restore entry: is_checkpointed %d", -+ dev->is_checkpointed); -+ -+ retval = yaffs2_rd_checkpt_data(dev); -+ -+ if (dev->is_checkpointed) { -+ yaffs_verify_objects(dev); -+ yaffs_verify_blocks(dev); -+ yaffs_verify_free_chunks(dev); -+ } -+ -+ yaffs_trace(YAFFS_TRACE_CHECKPOINT, -+ "restore exit: is_checkpointed %d", -+ dev->is_checkpointed); -+ -+ return retval; -+} -+ -+int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size) -+{ -+ /* if new_size > old_file_size. -+ * We're going to be writing a hole. -+ * If the hole is small then write zeros otherwise write a start -+ * of hole marker. -+ */ -+ loff_t old_file_size; -+ loff_t increase; -+ int small_hole; -+ int result = YAFFS_OK; -+ struct yaffs_dev *dev = NULL; -+ u8 *local_buffer = NULL; -+ int small_increase_ok = 0; -+ -+ if (!obj) -+ return YAFFS_FAIL; -+ -+ if (obj->variant_type != YAFFS_OBJECT_TYPE_FILE) -+ return YAFFS_FAIL; -+ -+ dev = obj->my_dev; -+ -+ /* Bail out if not yaffs2 mode */ -+ if (!dev->param.is_yaffs2) -+ return YAFFS_OK; -+ -+ old_file_size = obj->variant.file_variant.file_size; -+ -+ if (new_size <= old_file_size) -+ return YAFFS_OK; -+ -+ increase = new_size - old_file_size; -+ -+ if (increase < YAFFS_SMALL_HOLE_THRESHOLD * dev->data_bytes_per_chunk && -+ yaffs_check_alloc_available(dev, YAFFS_SMALL_HOLE_THRESHOLD + 1)) -+ small_hole = 1; -+ else -+ small_hole = 0; -+ -+ if (small_hole) -+ local_buffer = yaffs_get_temp_buffer(dev); -+ -+ if (local_buffer) { -+ /* fill hole with zero bytes */ -+ loff_t pos = old_file_size; -+ int this_write; -+ int written; -+ memset(local_buffer, 0, dev->data_bytes_per_chunk); -+ small_increase_ok = 1; -+ -+ while (increase > 0 && small_increase_ok) { -+ this_write = increase; -+ if (this_write > dev->data_bytes_per_chunk) -+ this_write = dev->data_bytes_per_chunk; -+ written = -+ yaffs_do_file_wr(obj, local_buffer, pos, this_write, -+ 0); -+ if (written == this_write) { -+ pos += this_write; -+ increase -= this_write; -+ } else { -+ small_increase_ok = 0; -+ } -+ } -+ -+ yaffs_release_temp_buffer(dev, local_buffer); -+ -+ /* If out of space then reverse any chunks we've added */ -+ if (!small_increase_ok) -+ yaffs_resize_file_down(obj, old_file_size); -+ } -+ -+ if (!small_increase_ok && -+ obj->parent && -+ obj->parent->obj_id != YAFFS_OBJECTID_UNLINKED && -+ obj->parent->obj_id != YAFFS_OBJECTID_DELETED) { -+ /* Write a hole start header with the old file size */ -+ yaffs_update_oh(obj, NULL, 0, 1, 0, NULL); -+ } -+ -+ return result; -+} -+ -+struct yaffs_block_index { -+ int seq; -+ int block; -+}; -+ -+static int yaffs2_ybicmp(const void *a, const void *b) -+{ -+ int aseq = ((struct yaffs_block_index *)a)->seq; -+ int bseq = ((struct yaffs_block_index *)b)->seq; -+ int ablock = ((struct yaffs_block_index *)a)->block; -+ int bblock = ((struct yaffs_block_index *)b)->block; -+ -+ if (aseq == bseq) -+ return ablock - bblock; -+ -+ return aseq - bseq; -+} -+ -+static inline int yaffs2_scan_chunk(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi, -+ int blk, int chunk_in_block, -+ int *found_chunks, -+ u8 *chunk_data, -+ struct list_head *hard_list, -+ int summary_available) -+{ -+ struct yaffs_obj_hdr *oh; -+ struct yaffs_obj *in; -+ struct yaffs_obj *parent; -+ int equiv_id; -+ loff_t file_size; -+ int is_shrink; -+ int is_unlinked; -+ struct yaffs_ext_tags tags; -+ int result; -+ int alloc_failed = 0; -+ int chunk = blk * dev->param.chunks_per_block + chunk_in_block; -+ struct yaffs_file_var *file_var; -+ struct yaffs_hardlink_var *hl_var; -+ struct yaffs_symlink_var *sl_var; -+ -+ if (summary_available) { -+ result = yaffs_summary_fetch(dev, &tags, chunk_in_block); -+ tags.seq_number = bi->seq_number; -+ } -+ -+ if (!summary_available || tags.obj_id == 0) { -+ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags); -+ dev->tags_used++; -+ } else { -+ dev->summary_used++; -+ } -+ -+ /* Let's have a good look at this chunk... */ -+ -+ if (!tags.chunk_used) { -+ /* An unassigned chunk in the block. -+ * If there are used chunks after this one, then -+ * it is a chunk that was skipped due to failing -+ * the erased check. Just skip it so that it can -+ * be deleted. -+ * But, more typically, We get here when this is -+ * an unallocated chunk and his means that -+ * either the block is empty or this is the one -+ * being allocated from -+ */ -+ -+ if (*found_chunks) { -+ /* This is a chunk that was skipped due -+ * to failing the erased check */ -+ } else if (chunk_in_block == 0) { -+ /* We're looking at the first chunk in -+ * the block so the block is unused */ -+ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; -+ dev->n_erased_blocks++; -+ } else { -+ if (bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN || -+ bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING) { -+ if (dev->seq_number == bi->seq_number) { -+ /* Allocating from this block*/ -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ " Allocating from %d %d", -+ blk, chunk_in_block); -+ -+ bi->block_state = -+ YAFFS_BLOCK_STATE_ALLOCATING; -+ dev->alloc_block = blk; -+ dev->alloc_page = chunk_in_block; -+ dev->alloc_block_finder = blk; -+ } else { -+ /* This is a partially written block -+ * that is not the current -+ * allocation block. -+ */ -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "Partially written block %d detected. gc will fix this.", -+ blk); -+ } -+ } -+ } -+ -+ dev->n_free_chunks++; -+ -+ } else if (tags.ecc_result == -+ YAFFS_ECC_RESULT_UNFIXED) { -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ " Unfixed ECC in chunk(%d:%d), chunk ignored", -+ blk, chunk_in_block); -+ dev->n_free_chunks++; -+ } else if (tags.obj_id > YAFFS_MAX_OBJECT_ID || -+ tags.chunk_id > YAFFS_MAX_CHUNK_ID || -+ tags.obj_id == YAFFS_OBJECTID_SUMMARY || -+ (tags.chunk_id > 0 && -+ tags.n_bytes > dev->data_bytes_per_chunk) || -+ tags.seq_number != bi->seq_number) { -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "Chunk (%d:%d) with bad tags:obj = %d, chunk_id = %d, n_bytes = %d, ignored", -+ blk, chunk_in_block, tags.obj_id, -+ tags.chunk_id, tags.n_bytes); -+ dev->n_free_chunks++; -+ } else if (tags.chunk_id > 0) { -+ /* chunk_id > 0 so it is a data chunk... */ -+ loff_t endpos; -+ loff_t chunk_base = (tags.chunk_id - 1) * -+ dev->data_bytes_per_chunk; -+ -+ *found_chunks = 1; -+ -+ yaffs_set_chunk_bit(dev, blk, chunk_in_block); -+ bi->pages_in_use++; -+ -+ in = yaffs_find_or_create_by_number(dev, -+ tags.obj_id, -+ YAFFS_OBJECT_TYPE_FILE); -+ if (!in) -+ /* Out of memory */ -+ alloc_failed = 1; -+ -+ if (in && -+ in->variant_type == YAFFS_OBJECT_TYPE_FILE && -+ chunk_base < in->variant.file_variant.shrink_size) { -+ /* This has not been invalidated by -+ * a resize */ -+ if (!yaffs_put_chunk_in_file(in, tags.chunk_id, -+ chunk, -1)) -+ alloc_failed = 1; -+ -+ /* File size is calculated by looking at -+ * the data chunks if we have not -+ * seen an object header yet. -+ * Stop this practice once we find an -+ * object header. -+ */ -+ endpos = chunk_base + tags.n_bytes; -+ -+ if (!in->valid && -+ in->variant.file_variant.scanned_size < endpos) { -+ in->variant.file_variant. -+ scanned_size = endpos; -+ in->variant.file_variant. -+ file_size = endpos; -+ } -+ } else if (in) { -+ /* This chunk has been invalidated by a -+ * resize, or a past file deletion -+ * so delete the chunk*/ -+ yaffs_chunk_del(dev, chunk, 1, __LINE__); -+ } -+ } else { -+ /* chunk_id == 0, so it is an ObjectHeader. -+ * Thus, we read in the object header and make -+ * the object -+ */ -+ *found_chunks = 1; -+ -+ yaffs_set_chunk_bit(dev, blk, chunk_in_block); -+ bi->pages_in_use++; -+ -+ oh = NULL; -+ in = NULL; -+ -+ if (tags.extra_available) { -+ in = yaffs_find_or_create_by_number(dev, -+ tags.obj_id, -+ tags.extra_obj_type); -+ if (!in) -+ alloc_failed = 1; -+ } -+ -+ if (!in || -+ (!in->valid && dev->param.disable_lazy_load) || -+ tags.extra_shadows || -+ (!in->valid && (tags.obj_id == YAFFS_OBJECTID_ROOT || -+ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND))) { -+ -+ /* If we don't have valid info then we -+ * need to read the chunk -+ * TODO In future we can probably defer -+ * reading the chunk and living with -+ * invalid data until needed. -+ */ -+ -+ result = yaffs_rd_chunk_tags_nand(dev, -+ chunk, -+ chunk_data, -+ NULL); -+ -+ oh = (struct yaffs_obj_hdr *)chunk_data; -+ -+ if (dev->param.inband_tags) { -+ /* Fix up the header if they got -+ * corrupted by inband tags */ -+ oh->shadows_obj = -+ oh->inband_shadowed_obj_id; -+ oh->is_shrink = -+ oh->inband_is_shrink; -+ } -+ -+ if (!in) { -+ in = yaffs_find_or_create_by_number(dev, -+ tags.obj_id, oh->type); -+ if (!in) -+ alloc_failed = 1; -+ } -+ } -+ -+ if (!in) { -+ /* TODO Hoosterman we have a problem! */ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: Could not make object for object %d at chunk %d during scan", -+ tags.obj_id, chunk); -+ return YAFFS_FAIL; -+ } -+ -+ if (in->valid) { -+ /* We have already filled this one. -+ * We have a duplicate that will be -+ * discarded, but we first have to suck -+ * out resize info if it is a file. -+ */ -+ if ((in->variant_type == YAFFS_OBJECT_TYPE_FILE) && -+ ((oh && oh->type == YAFFS_OBJECT_TYPE_FILE) || -+ (tags.extra_available && -+ tags.extra_obj_type == YAFFS_OBJECT_TYPE_FILE) -+ )) { -+ loff_t this_size = (oh) ? -+ yaffs_oh_to_size(oh) : -+ tags.extra_file_size; -+ u32 parent_obj_id = (oh) ? -+ oh->parent_obj_id : -+ tags.extra_parent_id; -+ -+ is_shrink = (oh) ? -+ oh->is_shrink : -+ tags.extra_is_shrink; -+ -+ /* If it is deleted (unlinked -+ * at start also means deleted) -+ * we treat the file size as -+ * being zeroed at this point. -+ */ -+ if (parent_obj_id == YAFFS_OBJECTID_DELETED || -+ parent_obj_id == YAFFS_OBJECTID_UNLINKED) { -+ this_size = 0; -+ is_shrink = 1; -+ } -+ -+ if (is_shrink && -+ in->variant.file_variant.shrink_size > -+ this_size) -+ in->variant.file_variant.shrink_size = -+ this_size; -+ -+ if (is_shrink) -+ bi->has_shrink_hdr = 1; -+ } -+ /* Use existing - destroy this one. */ -+ yaffs_chunk_del(dev, chunk, 1, __LINE__); -+ } -+ -+ if (!in->valid && in->variant_type != -+ (oh ? oh->type : tags.extra_obj_type)) { -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: Bad type, %d != %d, for object %d at chunk %d during scan", -+ oh ? oh->type : tags.extra_obj_type, -+ in->variant_type, tags.obj_id, -+ chunk); -+ in = yaffs_retype_obj(in, oh ? oh->type : tags.extra_obj_type); -+ } -+ -+ if (!in->valid && -+ (tags.obj_id == YAFFS_OBJECTID_ROOT || -+ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND)) { -+ /* We only load some info, don't fiddle -+ * with directory structure */ -+ in->valid = 1; -+ -+ if (oh) { -+ in->yst_mode = oh->yst_mode; -+ yaffs_load_attribs(in, oh); -+ in->lazy_loaded = 0; -+ } else { -+ in->lazy_loaded = 1; -+ } -+ in->hdr_chunk = chunk; -+ -+ } else if (!in->valid) { -+ /* we need to load this info */ -+ in->valid = 1; -+ in->hdr_chunk = chunk; -+ if (oh) { -+ in->variant_type = oh->type; -+ in->yst_mode = oh->yst_mode; -+ yaffs_load_attribs(in, oh); -+ -+ if (oh->shadows_obj > 0) -+ yaffs_handle_shadowed_obj(dev, -+ oh->shadows_obj, 1); -+ -+ yaffs_set_obj_name_from_oh(in, oh); -+ parent = yaffs_find_or_create_by_number(dev, -+ oh->parent_obj_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ file_size = yaffs_oh_to_size(oh); -+ is_shrink = oh->is_shrink; -+ equiv_id = oh->equiv_id; -+ } else { -+ in->variant_type = tags.extra_obj_type; -+ parent = yaffs_find_or_create_by_number(dev, -+ tags.extra_parent_id, -+ YAFFS_OBJECT_TYPE_DIRECTORY); -+ file_size = tags.extra_file_size; -+ is_shrink = tags.extra_is_shrink; -+ equiv_id = tags.extra_equiv_id; -+ in->lazy_loaded = 1; -+ } -+ in->dirty = 0; -+ -+ if (!parent) -+ alloc_failed = 1; -+ -+ /* directory stuff... -+ * hook up to parent -+ */ -+ -+ if (parent && -+ parent->variant_type == YAFFS_OBJECT_TYPE_UNKNOWN) { -+ /* Set up as a directory */ -+ parent->variant_type = -+ YAFFS_OBJECT_TYPE_DIRECTORY; -+ INIT_LIST_HEAD(&parent-> -+ variant.dir_variant.children); -+ } else if (!parent || -+ parent->variant_type != -+ YAFFS_OBJECT_TYPE_DIRECTORY) { -+ /* Hoosterman, another problem.... -+ * Trying to use a non-directory as a directory -+ */ -+ -+ yaffs_trace(YAFFS_TRACE_ERROR, -+ "yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." -+ ); -+ parent = dev->lost_n_found; -+ } -+ yaffs_add_obj_to_dir(parent, in); -+ -+ is_unlinked = (parent == dev->del_dir) || -+ (parent == dev->unlinked_dir); -+ -+ if (is_shrink) -+ /* Mark the block */ -+ bi->has_shrink_hdr = 1; -+ -+ /* Note re hardlinks. -+ * Since we might scan a hardlink before its equivalent -+ * object is scanned we put them all in a list. -+ * After scanning is complete, we should have all the -+ * objects, so we run through this list and fix up all -+ * the chains. -+ */ -+ -+ switch (in->variant_type) { -+ case YAFFS_OBJECT_TYPE_UNKNOWN: -+ /* Todo got a problem */ -+ break; -+ case YAFFS_OBJECT_TYPE_FILE: -+ file_var = &in->variant.file_variant; -+ if (file_var->scanned_size < file_size) { -+ /* This covers the case where the file -+ * size is greater than the data held. -+ * This will happen if the file is -+ * resized to be larger than its -+ * current data extents. -+ */ -+ file_var->file_size = file_size; -+ file_var->scanned_size = file_size; -+ } -+ -+ if (file_var->shrink_size > file_size) -+ file_var->shrink_size = file_size; -+ -+ break; -+ case YAFFS_OBJECT_TYPE_HARDLINK: -+ hl_var = &in->variant.hardlink_variant; -+ if (!is_unlinked) { -+ hl_var->equiv_id = equiv_id; -+ list_add(&in->hard_links, hard_list); -+ } -+ break; -+ case YAFFS_OBJECT_TYPE_DIRECTORY: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SPECIAL: -+ /* Do nothing */ -+ break; -+ case YAFFS_OBJECT_TYPE_SYMLINK: -+ sl_var = &in->variant.symlink_variant; -+ if (oh) { -+ sl_var->alias = -+ yaffs_clone_str(oh->alias); -+ if (!sl_var->alias) -+ alloc_failed = 1; -+ } -+ break; -+ } -+ } -+ } -+ return alloc_failed ? YAFFS_FAIL : YAFFS_OK; -+} -+ -+int yaffs2_scan_backwards(struct yaffs_dev *dev) -+{ -+ int blk; -+ int block_iter; -+ int start_iter; -+ int end_iter; -+ int n_to_scan = 0; -+ enum yaffs_block_state state; -+ int c; -+ int deleted; -+ LIST_HEAD(hard_list); -+ struct yaffs_block_info *bi; -+ u32 seq_number; -+ int n_blocks = dev->internal_end_block - dev->internal_start_block + 1; -+ u8 *chunk_data; -+ int found_chunks; -+ int alloc_failed = 0; -+ struct yaffs_block_index *block_index = NULL; -+ int alt_block_index = 0; -+ int summary_available; -+ -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "yaffs2_scan_backwards starts intstartblk %d intendblk %d...", -+ dev->internal_start_block, dev->internal_end_block); -+ -+ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; -+ -+ block_index = -+ kmalloc(n_blocks * sizeof(struct yaffs_block_index), GFP_NOFS); -+ -+ if (!block_index) { -+ block_index = -+ vmalloc(n_blocks * sizeof(struct yaffs_block_index)); -+ alt_block_index = 1; -+ } -+ -+ if (!block_index) { -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "yaffs2_scan_backwards() could not allocate block index!" -+ ); -+ return YAFFS_FAIL; -+ } -+ -+ dev->blocks_in_checkpt = 0; -+ -+ chunk_data = yaffs_get_temp_buffer(dev); -+ -+ /* Scan all the blocks to determine their state */ -+ bi = dev->block_info; -+ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; -+ blk++) { -+ yaffs_clear_chunk_bits(dev, blk); -+ bi->pages_in_use = 0; -+ bi->soft_del_pages = 0; -+ -+ yaffs_query_init_block_state(dev, blk, &state, &seq_number); -+ -+ bi->block_state = state; -+ bi->seq_number = seq_number; -+ -+ if (bi->seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) -+ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; -+ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) -+ bi->block_state = YAFFS_BLOCK_STATE_DEAD; -+ -+ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, -+ "Block scanning block %d state %d seq %d", -+ blk, bi->block_state, seq_number); -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { -+ dev->blocks_in_checkpt++; -+ -+ } else if (bi->block_state == YAFFS_BLOCK_STATE_DEAD) { -+ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, -+ "block %d is bad", blk); -+ } else if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { -+ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "Block empty "); -+ dev->n_erased_blocks++; -+ dev->n_free_chunks += dev->param.chunks_per_block; -+ } else if (bi->block_state == -+ YAFFS_BLOCK_STATE_NEEDS_SCAN) { -+ /* Determine the highest sequence number */ -+ if (seq_number >= YAFFS_LOWEST_SEQUENCE_NUMBER && -+ seq_number < YAFFS_HIGHEST_SEQUENCE_NUMBER) { -+ block_index[n_to_scan].seq = seq_number; -+ block_index[n_to_scan].block = blk; -+ n_to_scan++; -+ if (seq_number >= dev->seq_number) -+ dev->seq_number = seq_number; -+ } else { -+ /* TODO: Nasty sequence number! */ -+ yaffs_trace(YAFFS_TRACE_SCAN, -+ "Block scanning block %d has bad sequence number %d", -+ blk, seq_number); -+ } -+ } -+ bi++; -+ } -+ -+ yaffs_trace(YAFFS_TRACE_ALWAYS, "%d blocks to be sorted...", n_to_scan); -+ -+ cond_resched(); -+ -+ /* Sort the blocks by sequence number */ -+ sort(block_index, n_to_scan, sizeof(struct yaffs_block_index), -+ yaffs2_ybicmp, NULL); -+ -+ cond_resched(); -+ -+ yaffs_trace(YAFFS_TRACE_SCAN, "...done"); -+ -+ /* Now scan the blocks looking at the data. */ -+ start_iter = 0; -+ end_iter = n_to_scan - 1; -+ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "%d blocks to scan", n_to_scan); -+ -+ /* For each block.... backwards */ -+ for (block_iter = end_iter; -+ !alloc_failed && block_iter >= start_iter; -+ block_iter--) { -+ /* Cooperative multitasking! This loop can run for so -+ long that watchdog timers expire. */ -+ cond_resched(); -+ -+ /* get the block to scan in the correct order */ -+ blk = block_index[block_iter].block; -+ bi = yaffs_get_block_info(dev, blk); -+ deleted = 0; -+ -+ summary_available = yaffs_summary_read(dev, dev->sum_tags, blk); -+ -+ /* For each chunk in each block that needs scanning.... */ -+ found_chunks = 0; -+ if (summary_available) -+ c = dev->chunks_per_summary - 1; -+ else -+ c = dev->param.chunks_per_block - 1; -+ -+ for (/* c is already initialised */; -+ !alloc_failed && c >= 0 && -+ (bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN || -+ bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING); -+ c--) { -+ /* Scan backwards... -+ * Read the tags and decide what to do -+ */ -+ if (yaffs2_scan_chunk(dev, bi, blk, c, -+ &found_chunks, chunk_data, -+ &hard_list, summary_available) == -+ YAFFS_FAIL) -+ alloc_failed = 1; -+ } -+ -+ if (bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN) { -+ /* If we got this far while scanning, then the block -+ * is fully allocated. */ -+ bi->block_state = YAFFS_BLOCK_STATE_FULL; -+ } -+ -+ /* Now let's see if it was dirty */ -+ if (bi->pages_in_use == 0 && -+ !bi->has_shrink_hdr && -+ bi->block_state == YAFFS_BLOCK_STATE_FULL) { -+ yaffs_block_became_dirty(dev, blk); -+ } -+ } -+ -+ yaffs_skip_rest_of_block(dev); -+ -+ if (alt_block_index) -+ vfree(block_index); -+ else -+ kfree(block_index); -+ -+ /* Ok, we've done all the scanning. -+ * Fix up the hard link chains. -+ * We have scanned all the objects, now it's time to add these -+ * hardlinks. -+ */ -+ yaffs_link_fixup(dev, &hard_list); -+ -+ yaffs_release_temp_buffer(dev, chunk_data); -+ -+ if (alloc_failed) -+ return YAFFS_FAIL; -+ -+ yaffs_trace(YAFFS_TRACE_SCAN, "yaffs2_scan_backwards ends"); -+ -+ return YAFFS_OK; -+} -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.h linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.h ---- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,39 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YAFFS_YAFFS2_H__ -+#define __YAFFS_YAFFS2_H__ -+ -+#include "yaffs_guts.h" -+ -+void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev); -+void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev); -+void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev, -+ struct yaffs_block_info *bi); -+void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no, -+ struct yaffs_block_info *bi); -+int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi); -+u32 yaffs2_find_refresh_block(struct yaffs_dev *dev); -+int yaffs2_checkpt_required(struct yaffs_dev *dev); -+int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev); -+ -+void yaffs2_checkpt_invalidate(struct yaffs_dev *dev); -+int yaffs2_checkpt_save(struct yaffs_dev *dev); -+int yaffs2_checkpt_restore(struct yaffs_dev *dev); -+ -+int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size); -+int yaffs2_scan_backwards(struct yaffs_dev *dev); -+ -+#endif -diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yportenv.h linux-3.15-rc5/fs/yaffs2/yportenv.h ---- linux-3.15-rc5.orig/fs/yaffs2/yportenv.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc5/fs/yaffs2/yportenv.h 2014-05-17 01:53:27.000000000 +0200 -@@ -0,0 +1,85 @@ -+/* -+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. -+ * -+ * Copyright (C) 2002-2011 Aleph One Ltd. -+ * for Toby Churchill Ltd and Brightstar Engineering -+ * -+ * Created by Charles Manning -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU Lesser General Public License version 2.1 as -+ * published by the Free Software Foundation. -+ * -+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. -+ */ -+ -+#ifndef __YPORTENV_H__ -+#define __YPORTENV_H__ -+ -+/* -+ * Define the MTD version in terms of Linux Kernel versions -+ * This allows yaffs to be used independantly of the kernel -+ * as well as with it. -+ */ -+ -+#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c)) -+ -+#ifdef YAFFS_OUT_OF_TREE -+#include "moduleconfig.h" -+#endif -+ -+#include -+#define MTD_VERSION_CODE LINUX_VERSION_CODE -+ -+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -+#include -+#endif -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+/* These type wrappings are used to support Unicode names in WinCE. */ -+#define YCHAR char -+#define YUCHAR unsigned char -+#define _Y(x) x -+ -+#define YAFFS_LOSTNFOUND_NAME "lost+found" -+#define YAFFS_LOSTNFOUND_PREFIX "obj" -+ -+ -+#define YAFFS_ROOT_MODE 0755 -+#define YAFFS_LOSTNFOUND_MODE 0700 -+ -+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -+#define Y_CURRENT_TIME CURRENT_TIME.tv_sec -+#define Y_TIME_CONVERT(x) (x).tv_sec -+#else -+#define Y_CURRENT_TIME CURRENT_TIME -+#define Y_TIME_CONVERT(x) (x) -+#endif -+ -+#define compile_time_assertion(assertion) \ -+ ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) -+ -+ -+#define yaffs_printf(msk, fmt, ...) \ -+ printk(KERN_DEBUG "yaffs: " fmt "\n", ##__VA_ARGS__) -+ -+#define yaffs_trace(msk, fmt, ...) do { \ -+ if (yaffs_trace_mask & (msk)) \ -+ printk(KERN_DEBUG "yaffs: " fmt "\n", ##__VA_ARGS__); \ -+} while (0) -+ -+ -+#endif diff --git a/target/linux/patches/3.15-rc7/ppc64-missing-zlib.patch b/target/linux/patches/3.15-rc7/ppc64-missing-zlib.patch deleted file mode 100644 index c6e0616be..000000000 --- a/target/linux/patches/3.15-rc7/ppc64-missing-zlib.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-3.11.5.orig/arch/powerpc/platforms/pseries/Kconfig linux-3.11.5/arch/powerpc/platforms/pseries/Kconfig ---- linux-3.11.5.orig/arch/powerpc/platforms/pseries/Kconfig 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/arch/powerpc/platforms/pseries/Kconfig 2013-11-01 15:23:09.000000000 +0100 -@@ -17,6 +17,7 @@ - select PPC_NATIVE - select PPC_PCI_CHOICE if EXPERT - select ZLIB_DEFLATE -+ select ZLIB_INFLATE - select PPC_DOORBELL - select HAVE_CONTEXT_TRACKING - select HOTPLUG_CPU if SMP diff --git a/target/linux/patches/3.15-rc7/relocs.patch b/target/linux/patches/3.15-rc7/relocs.patch deleted file mode 100644 index 69a7c88a9..000000000 --- a/target/linux/patches/3.15-rc7/relocs.patch +++ /dev/null @@ -1,2709 +0,0 @@ -diff -Nur linux-3.13.6.orig/arch/x86/tools/relocs.c linux-3.13.6/arch/x86/tools/relocs.c ---- linux-3.13.6.orig/arch/x86/tools/relocs.c 2014-03-07 07:07:02.000000000 +0100 -+++ linux-3.13.6/arch/x86/tools/relocs.c 2014-03-15 19:39:45.000000000 +0100 -@@ -126,6 +126,7 @@ - - if (err) { - regerror(err, &sym_regex_c[i], errbuf, sizeof errbuf); -+ printf("foo: %s\n", sym_regex[i]); - die("%s", errbuf); - } - } -diff -Nur linux-3.13.6.orig/arch/x86/tools/relocs.h linux-3.13.6/arch/x86/tools/relocs.h ---- linux-3.13.6.orig/arch/x86/tools/relocs.h 2014-03-07 07:07:02.000000000 +0100 -+++ linux-3.13.6/arch/x86/tools/relocs.h 2014-03-15 18:48:40.000000000 +0100 -@@ -9,11 +9,19 @@ - #include - #include - #include -+#ifdef __linux__ - #include - #include - #define USE_BSD - #include -+#else -+#include "elf.h" -+#endif -+#ifdef __APPLE__ -+#include -+#else - #include -+#endif - #include - - void die(char *fmt, ...); -diff -Nur linux-3.13.6.orig/tools/include/elf.h linux-3.13.6/tools/include/elf.h ---- linux-3.13.6.orig/tools/include/elf.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.13.6/tools/include/elf.h 2014-03-15 18:47:36.000000000 +0100 -@@ -0,0 +1,2671 @@ -+#ifndef _ELF_H -+#define _ELF_H -+ -+#ifdef __cplusplus -+extern "C" { -+#endif -+ -+#include -+ -+typedef uint16_t Elf32_Half; -+typedef uint16_t Elf64_Half; -+ -+typedef uint32_t Elf32_Word; -+typedef int32_t Elf32_Sword; -+typedef uint32_t Elf64_Word; -+typedef int32_t Elf64_Sword; -+ -+typedef uint64_t Elf32_Xword; -+typedef int64_t Elf32_Sxword; -+typedef uint64_t Elf64_Xword; -+typedef int64_t Elf64_Sxword; -+ -+typedef uint32_t Elf32_Addr; -+typedef uint64_t Elf64_Addr; -+ -+typedef uint32_t Elf32_Off; -+typedef uint64_t Elf64_Off; -+ -+typedef uint16_t Elf32_Section; -+typedef uint16_t Elf64_Section; -+ -+typedef Elf32_Half Elf32_Versym; -+typedef Elf64_Half Elf64_Versym; -+ -+#define EI_NIDENT (16) -+ -+typedef struct { -+ unsigned char e_ident[EI_NIDENT]; -+ Elf32_Half e_type; -+ Elf32_Half e_machine; -+ Elf32_Word e_version; -+ Elf32_Addr e_entry; -+ Elf32_Off e_phoff; -+ Elf32_Off e_shoff; -+ Elf32_Word e_flags; -+ Elf32_Half e_ehsize; -+ Elf32_Half e_phentsize; -+ Elf32_Half e_phnum; -+ Elf32_Half e_shentsize; -+ Elf32_Half e_shnum; -+ Elf32_Half e_shstrndx; -+} Elf32_Ehdr; -+ -+typedef struct { -+ unsigned char e_ident[EI_NIDENT]; -+ Elf64_Half e_type; -+ Elf64_Half e_machine; -+ Elf64_Word e_version; -+ Elf64_Addr e_entry; -+ Elf64_Off e_phoff; -+ Elf64_Off e_shoff; -+ Elf64_Word e_flags; -+ Elf64_Half e_ehsize; -+ Elf64_Half e_phentsize; -+ Elf64_Half e_phnum; -+ Elf64_Half e_shentsize; -+ Elf64_Half e_shnum; -+ Elf64_Half e_shstrndx; -+} Elf64_Ehdr; -+ -+#define EI_MAG0 0 -+#define ELFMAG0 0x7f -+ -+#define EI_MAG1 1 -+#define ELFMAG1 'E' -+ -+#define EI_MAG2 2 -+#define ELFMAG2 'L' -+ -+#define EI_MAG3 3 -+#define ELFMAG3 'F' -+ -+ -+#define ELFMAG "\177ELF" -+#define SELFMAG 4 -+ -+#define EI_CLASS 4 -+#define ELFCLASSNONE 0 -+#define ELFCLASS32 1 -+#define ELFCLASS64 2 -+#define ELFCLASSNUM 3 -+ -+#define EI_DATA 5 -+#define ELFDATANONE 0 -+#define ELFDATA2LSB 1 -+#define ELFDATA2MSB 2 -+#define ELFDATANUM 3 -+ -+#define EI_VERSION 6 -+ -+ -+#define EI_OSABI 7 -+#define ELFOSABI_NONE 0 -+#define ELFOSABI_SYSV 0 -+#define ELFOSABI_HPUX 1 -+#define ELFOSABI_NETBSD 2 -+#define ELFOSABI_LINUX 3 -+#define ELFOSABI_GNU 3 -+#define ELFOSABI_SOLARIS 6 -+#define ELFOSABI_AIX 7 -+#define ELFOSABI_IRIX 8 -+#define ELFOSABI_FREEBSD 9 -+#define ELFOSABI_TRU64 10 -+#define ELFOSABI_MODESTO 11 -+#define ELFOSABI_OPENBSD 12 -+#define ELFOSABI_ARM 97 -+#define ELFOSABI_STANDALONE 255 -+ -+#define EI_ABIVERSION 8 -+ -+#define EI_PAD 9 -+ -+ -+ -+#define ET_NONE 0 -+#define ET_REL 1 -+#define ET_EXEC 2 -+#define ET_DYN 3 -+#define ET_CORE 4 -+#define ET_NUM 5 -+#define ET_LOOS 0xfe00 -+#define ET_HIOS 0xfeff -+#define ET_LOPROC 0xff00 -+#define ET_HIPROC 0xffff -+ -+ -+ -+#define EM_NONE 0 -+#define EM_M32 1 -+#define EM_SPARC 2 -+#define EM_386 3 -+#define EM_68K 4 -+#define EM_88K 5 -+#define EM_860 7 -+#define EM_MIPS 8 -+#define EM_S370 9 -+#define EM_MIPS_RS3_LE 10 -+ -+#define EM_PARISC 15 -+#define EM_VPP500 17 -+#define EM_SPARC32PLUS 18 -+#define EM_960 19 -+#define EM_PPC 20 -+#define EM_PPC64 21 -+#define EM_S390 22 -+ -+#define EM_V800 36 -+#define EM_FR20 37 -+#define EM_RH32 38 -+#define EM_RCE 39 -+#define EM_ARM 40 -+#define EM_FAKE_ALPHA 41 -+#define EM_SH 42 -+#define EM_SPARCV9 43 -+#define EM_TRICORE 44 -+#define EM_ARC 45 -+#define EM_H8_300 46 -+#define EM_H8_300H 47 -+#define EM_H8S 48 -+#define EM_H8_500 49 -+#define EM_IA_64 50 -+#define EM_MIPS_X 51 -+#define EM_COLDFIRE 52 -+#define EM_68HC12 53 -+#define EM_MMA 54 -+#define EM_PCP 55 -+#define EM_NCPU 56 -+#define EM_NDR1 57 -+#define EM_STARCORE 58 -+#define EM_ME16 59 -+#define EM_ST100 60 -+#define EM_TINYJ 61 -+#define EM_X86_64 62 -+#define EM_PDSP 63 -+ -+#define EM_FX66 66 -+#define EM_ST9PLUS 67 -+#define EM_ST7 68 -+#define EM_68HC16 69 -+#define EM_68HC11 70 -+#define EM_68HC08 71 -+#define EM_68HC05 72 -+#define EM_SVX 73 -+#define EM_ST19 74 -+#define EM_VAX 75 -+#define EM_CRIS 76 -+#define EM_JAVELIN 77 -+#define EM_FIREPATH 78 -+#define EM_ZSP 79 -+#define EM_MMIX 80 -+#define EM_HUANY 81 -+#define EM_PRISM 82 -+#define EM_AVR 83 -+#define EM_FR30 84 -+#define EM_D10V 85 -+#define EM_D30V 86 -+#define EM_V850 87 -+#define EM_M32R 88 -+#define EM_MN10300 89 -+#define EM_MN10200 90 -+#define EM_PJ 91 -+#define EM_OPENRISC 92 -+#define EM_ARC_A5 93 -+#define EM_XTENSA 94 -+#define EM_AARCH64 183 -+#define EM_TILEPRO 188 -+#define EM_MICROBLAZE 189 -+#define EM_TILEGX 191 -+#define EM_NUM 192 -+#define EM_ALPHA 0x9026 -+ -+#define EV_NONE 0 -+#define EV_CURRENT 1 -+#define EV_NUM 2 -+ -+typedef struct { -+ Elf32_Word sh_name; -+ Elf32_Word sh_type; -+ Elf32_Word sh_flags; -+ Elf32_Addr sh_addr; -+ Elf32_Off sh_offset; -+ Elf32_Word sh_size; -+ Elf32_Word sh_link; -+ Elf32_Word sh_info; -+ Elf32_Word sh_addralign; -+ Elf32_Word sh_entsize; -+} Elf32_Shdr; -+ -+typedef struct { -+ Elf64_Word sh_name; -+ Elf64_Word sh_type; -+ Elf64_Xword sh_flags; -+ Elf64_Addr sh_addr; -+ Elf64_Off sh_offset; -+ Elf64_Xword sh_size; -+ Elf64_Word sh_link; -+ Elf64_Word sh_info; -+ Elf64_Xword sh_addralign; -+ Elf64_Xword sh_entsize; -+} Elf64_Shdr; -+ -+ -+ -+#define SHN_UNDEF 0 -+#define SHN_LORESERVE 0xff00 -+#define SHN_LOPROC 0xff00 -+#define SHN_BEFORE 0xff00 -+ -+#define SHN_AFTER 0xff01 -+ -+#define SHN_HIPROC 0xff1f -+#define SHN_LOOS 0xff20 -+#define SHN_HIOS 0xff3f -+#define SHN_ABS 0xfff1 -+#define SHN_COMMON 0xfff2 -+#define SHN_XINDEX 0xffff -+#define SHN_HIRESERVE 0xffff -+ -+ -+ -+#define SHT_NULL 0 -+#define SHT_PROGBITS 1 -+#define SHT_SYMTAB 2 -+#define SHT_STRTAB 3 -+#define SHT_RELA 4 -+#define SHT_HASH 5 -+#define SHT_DYNAMIC 6 -+#define SHT_NOTE 7 -+#define SHT_NOBITS 8 -+#define SHT_REL 9 -+#define SHT_SHLIB 10 -+#define SHT_DYNSYM 11 -+#define SHT_INIT_ARRAY 14 -+#define SHT_FINI_ARRAY 15 -+#define SHT_PREINIT_ARRAY 16 -+#define SHT_GROUP 17 -+#define SHT_SYMTAB_SHNDX 18 -+#define SHT_NUM 19 -+#define SHT_LOOS 0x60000000 -+#define SHT_GNU_ATTRIBUTES 0x6ffffff5 -+#define SHT_GNU_HASH 0x6ffffff6 -+#define SHT_GNU_LIBLIST 0x6ffffff7 -+#define SHT_CHECKSUM 0x6ffffff8 -+#define SHT_LOSUNW 0x6ffffffa -+#define SHT_SUNW_move 0x6ffffffa -+#define SHT_SUNW_COMDAT 0x6ffffffb -+#define SHT_SUNW_syminfo 0x6ffffffc -+#define SHT_GNU_verdef 0x6ffffffd -+#define SHT_GNU_verneed 0x6ffffffe -+#define SHT_GNU_versym 0x6fffffff -+#define SHT_HISUNW 0x6fffffff -+#define SHT_HIOS 0x6fffffff -+#define SHT_LOPROC 0x70000000 -+#define SHT_HIPROC 0x7fffffff -+#define SHT_LOUSER 0x80000000 -+#define SHT_HIUSER 0x8fffffff -+ -+#define SHF_WRITE (1 << 0) -+#define SHF_ALLOC (1 << 1) -+#define SHF_EXECINSTR (1 << 2) -+#define SHF_MERGE (1 << 4) -+#define SHF_STRINGS (1 << 5) -+#define SHF_INFO_LINK (1 << 6) -+#define SHF_LINK_ORDER (1 << 7) -+#define SHF_OS_NONCONFORMING (1 << 8) -+ -+#define SHF_GROUP (1 << 9) -+#define SHF_TLS (1 << 10) -+#define SHF_MASKOS 0x0ff00000 -+#define SHF_MASKPROC 0xf0000000 -+#define SHF_ORDERED (1 << 30) -+#define SHF_EXCLUDE (1 << 31) -+ -+#define GRP_COMDAT 0x1 -+ -+typedef struct { -+ Elf32_Word st_name; -+ Elf32_Addr st_value; -+ Elf32_Word st_size; -+ unsigned char st_info; -+ unsigned char st_other; -+ Elf32_Section st_shndx; -+} Elf32_Sym; -+ -+typedef struct { -+ Elf64_Word st_name; -+ unsigned char st_info; -+ unsigned char st_other; -+ Elf64_Section st_shndx; -+ Elf64_Addr st_value; -+ Elf64_Xword st_size; -+} Elf64_Sym; -+ -+typedef struct { -+ Elf32_Half si_boundto; -+ Elf32_Half si_flags; -+} Elf32_Syminfo; -+ -+typedef struct { -+ Elf64_Half si_boundto; -+ Elf64_Half si_flags; -+} Elf64_Syminfo; -+ -+#define SYMINFO_BT_SELF 0xffff -+#define SYMINFO_BT_PARENT 0xfffe -+#define SYMINFO_BT_LOWRESERVE 0xff00 -+ -+#define SYMINFO_FLG_DIRECT 0x0001 -+#define SYMINFO_FLG_PASSTHRU 0x0002 -+#define SYMINFO_FLG_COPY 0x0004 -+#define SYMINFO_FLG_LAZYLOAD 0x0008 -+ -+#define SYMINFO_NONE 0 -+#define SYMINFO_CURRENT 1 -+#define SYMINFO_NUM 2 -+ -+#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) -+#define ELF32_ST_TYPE(val) ((val) & 0xf) -+#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) -+ -+#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) -+#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) -+#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) -+ -+#define STB_LOCAL 0 -+#define STB_GLOBAL 1 -+#define STB_WEAK 2 -+#define STB_NUM 3 -+#define STB_LOOS 10 -+#define STB_GNU_UNIQUE 10 -+#define STB_HIOS 12 -+#define STB_LOPROC 13 -+#define STB_HIPROC 15 -+ -+#define STT_NOTYPE 0 -+#define STT_OBJECT 1 -+#define STT_FUNC 2 -+#define STT_SECTION 3 -+#define STT_FILE 4 -+#define STT_COMMON 5 -+#define STT_TLS 6 -+#define STT_NUM 7 -+#define STT_LOOS 10 -+#define STT_GNU_IFUNC 10 -+#define STT_HIOS 12 -+#define STT_LOPROC 13 -+#define STT_HIPROC 15 -+ -+#define STN_UNDEF 0 -+ -+#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) -+#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) -+ -+#define STV_DEFAULT 0 -+#define STV_INTERNAL 1 -+#define STV_HIDDEN 2 -+#define STV_PROTECTED 3 -+ -+ -+ -+ -+typedef struct -+{ -+ Elf32_Addr r_offset; -+ Elf32_Word r_info; -+} Elf32_Rel; -+ -+typedef struct { -+ Elf64_Addr r_offset; -+ Elf64_Xword r_info; -+} Elf64_Rel; -+ -+ -+ -+typedef struct { -+ Elf32_Addr r_offset; -+ Elf32_Word r_info; -+ Elf32_Sword r_addend; -+} Elf32_Rela; -+ -+typedef struct { -+ Elf64_Addr r_offset; -+ Elf64_Xword r_info; -+ Elf64_Sxword r_addend; -+} Elf64_Rela; -+ -+ -+ -+#define ELF32_R_SYM(val) ((val) >> 8) -+#define ELF32_R_TYPE(val) ((val) & 0xff) -+#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) -+ -+#define ELF64_R_SYM(i) ((i) >> 32) -+#define ELF64_R_TYPE(i) ((i) & 0xffffffff) -+#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) -+ -+ -+ -+typedef struct { -+ Elf32_Word p_type; -+ Elf32_Off p_offset; -+ Elf32_Addr p_vaddr; -+ Elf32_Addr p_paddr; -+ Elf32_Word p_filesz; -+ Elf32_Word p_memsz; -+ Elf32_Word p_flags; -+ Elf32_Word p_align; -+} Elf32_Phdr; -+ -+typedef struct { -+ Elf64_Word p_type; -+ Elf64_Word p_flags; -+ Elf64_Off p_offset; -+ Elf64_Addr p_vaddr; -+ Elf64_Addr p_paddr; -+ Elf64_Xword p_filesz; -+ Elf64_Xword p_memsz; -+ Elf64_Xword p_align; -+} Elf64_Phdr; -+ -+ -+ -+#define PT_NULL 0 -+#define PT_LOAD 1 -+#define PT_DYNAMIC 2 -+#define PT_INTERP 3 -+#define PT_NOTE 4 -+#define PT_SHLIB 5 -+#define PT_PHDR 6 -+#define PT_TLS 7 -+#define PT_NUM 8 -+#define PT_LOOS 0x60000000 -+#define PT_GNU_EH_FRAME 0x6474e550 -+#define PT_GNU_STACK 0x6474e551 -+#define PT_GNU_RELRO 0x6474e552 -+#define PT_LOSUNW 0x6ffffffa -+#define PT_SUNWBSS 0x6ffffffa -+#define PT_SUNWSTACK 0x6ffffffb -+#define PT_HISUNW 0x6fffffff -+#define PT_HIOS 0x6fffffff -+#define PT_LOPROC 0x70000000 -+#define PT_HIPROC 0x7fffffff -+ -+ -+#define PN_XNUM 0xffff -+ -+ -+#define PF_X (1 << 0) -+#define PF_W (1 << 1) -+#define PF_R (1 << 2) -+#define PF_MASKOS 0x0ff00000 -+#define PF_MASKPROC 0xf0000000 -+ -+ -+ -+#define NT_PRSTATUS 1 -+#define NT_FPREGSET 2 -+#define NT_PRPSINFO 3 -+#define NT_PRXREG 4 -+#define NT_TASKSTRUCT 4 -+#define NT_PLATFORM 5 -+#define NT_AUXV 6 -+#define NT_GWINDOWS 7 -+#define NT_ASRS 8 -+#define NT_PSTATUS 10 -+#define NT_PSINFO 13 -+#define NT_PRCRED 14 -+#define NT_UTSNAME 15 -+#define NT_LWPSTATUS 16 -+#define NT_LWPSINFO 17 -+#define NT_PRFPXREG 20 -+#define NT_SIGINFO 0x53494749 -+#define NT_FILE 0x46494c45 -+#define NT_PRXFPREG 0x46e62b7f -+#define NT_PPC_VMX 0x100 -+#define NT_PPC_SPE 0x101 -+#define NT_PPC_VSX 0x102 -+#define NT_386_TLS 0x200 -+#define NT_386_IOPERM 0x201 -+#define NT_X86_XSTATE 0x202 -+#define NT_S390_HIGH_GPRS 0x300 -+#define NT_S390_TIMER 0x301 -+#define NT_S390_TODCMP 0x302 -+#define NT_S390_TODPREG 0x303 -+#define NT_S390_CTRS 0x304 -+#define NT_S390_PREFIX 0x305 -+#define NT_S390_LAST_BREAK 0x306 -+#define NT_S390_SYSTEM_CALL 0x307 -+#define NT_S390_TDB 0x308 -+#define NT_ARM_VFP 0x400 -+#define NT_ARM_TLS 0x401 -+#define NT_ARM_HW_BREAK 0x402 -+#define NT_ARM_HW_WATCH 0x403 -+#define NT_METAG_CBUF 0x500 -+#define NT_METAG_RPIPE 0x501 -+#define NT_METAG_TLS 0x502 -+#define NT_VERSION 1 -+ -+ -+ -+ -+typedef struct { -+ Elf32_Sword d_tag; -+ union { -+ Elf32_Word d_val; -+ Elf32_Addr d_ptr; -+ } d_un; -+} Elf32_Dyn; -+ -+typedef struct { -+ Elf64_Sxword d_tag; -+ union { -+ Elf64_Xword d_val; -+ Elf64_Addr d_ptr; -+ } d_un; -+} Elf64_Dyn; -+ -+ -+ -+#define DT_NULL 0 -+#define DT_NEEDED 1 -+#define DT_PLTRELSZ 2 -+#define DT_PLTGOT 3 -+#define DT_HASH 4 -+#define DT_STRTAB 5 -+#define DT_SYMTAB 6 -+#define DT_RELA 7 -+#define DT_RELASZ 8 -+#define DT_RELAENT 9 -+#define DT_STRSZ 10 -+#define DT_SYMENT 11 -+#define DT_INIT 12 -+#define DT_FINI 13 -+#define DT_SONAME 14 -+#define DT_RPATH 15 -+#define DT_SYMBOLIC 16 -+#define DT_REL 17 -+#define DT_RELSZ 18 -+#define DT_RELENT 19 -+#define DT_PLTREL 20 -+#define DT_DEBUG 21 -+#define DT_TEXTREL 22 -+#define DT_JMPREL 23 -+#define DT_BIND_NOW 24 -+#define DT_INIT_ARRAY 25 -+#define DT_FINI_ARRAY 26 -+#define DT_INIT_ARRAYSZ 27 -+#define DT_FINI_ARRAYSZ 28 -+#define DT_RUNPATH 29 -+#define DT_FLAGS 30 -+#define DT_ENCODING 32 -+#define DT_PREINIT_ARRAY 32 -+#define DT_PREINIT_ARRAYSZ 33 -+#define DT_NUM 34 -+#define DT_LOOS 0x6000000d -+#define DT_HIOS 0x6ffff000 -+#define DT_LOPROC 0x70000000 -+#define DT_HIPROC 0x7fffffff -+#define DT_PROCNUM DT_MIPS_NUM -+ -+#define DT_VALRNGLO 0x6ffffd00 -+#define DT_GNU_PRELINKED 0x6ffffdf5 -+#define DT_GNU_CONFLICTSZ 0x6ffffdf6 -+#define DT_GNU_LIBLISTSZ 0x6ffffdf7 -+#define DT_CHECKSUM 0x6ffffdf8 -+#define DT_PLTPADSZ 0x6ffffdf9 -+#define DT_MOVEENT 0x6ffffdfa -+#define DT_MOVESZ 0x6ffffdfb -+#define DT_FEATURE_1 0x6ffffdfc -+#define DT_POSFLAG_1 0x6ffffdfd -+ -+#define DT_SYMINSZ 0x6ffffdfe -+#define DT_SYMINENT 0x6ffffdff -+#define DT_VALRNGHI 0x6ffffdff -+#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) -+#define DT_VALNUM 12 -+ -+#define DT_ADDRRNGLO 0x6ffffe00 -+#define DT_GNU_HASH 0x6ffffef5 -+#define DT_TLSDESC_PLT 0x6ffffef6 -+#define DT_TLSDESC_GOT 0x6ffffef7 -+#define DT_GNU_CONFLICT 0x6ffffef8 -+#define DT_GNU_LIBLIST 0x6ffffef9 -+#define DT_CONFIG 0x6ffffefa -+#define DT_DEPAUDIT 0x6ffffefb -+#define DT_AUDIT 0x6ffffefc -+#define DT_PLTPAD 0x6ffffefd -+#define DT_MOVETAB 0x6ffffefe -+#define DT_SYMINFO 0x6ffffeff -+#define DT_ADDRRNGHI 0x6ffffeff -+#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) -+#define DT_ADDRNUM 11 -+ -+ -+ -+#define DT_VERSYM 0x6ffffff0 -+ -+#define DT_RELACOUNT 0x6ffffff9 -+#define DT_RELCOUNT 0x6ffffffa -+ -+ -+#define DT_FLAGS_1 0x6ffffffb -+#define DT_VERDEF 0x6ffffffc -+ -+#define DT_VERDEFNUM 0x6ffffffd -+#define DT_VERNEED 0x6ffffffe -+ -+#define DT_VERNEEDNUM 0x6fffffff -+#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) -+#define DT_VERSIONTAGNUM 16 -+ -+ -+ -+#define DT_AUXILIARY 0x7ffffffd -+#define DT_FILTER 0x7fffffff -+#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) -+#define DT_EXTRANUM 3 -+ -+ -+#define DF_ORIGIN 0x00000001 -+#define DF_SYMBOLIC 0x00000002 -+#define DF_TEXTREL 0x00000004 -+#define DF_BIND_NOW 0x00000008 -+#define DF_STATIC_TLS 0x00000010 -+ -+ -+ -+#define DF_1_NOW 0x00000001 -+#define DF_1_GLOBAL 0x00000002 -+#define DF_1_GROUP 0x00000004 -+#define DF_1_NODELETE 0x00000008 -+#define DF_1_LOADFLTR 0x00000010 -+#define DF_1_INITFIRST 0x00000020 -+#define DF_1_NOOPEN 0x00000040 -+#define DF_1_ORIGIN 0x00000080 -+#define DF_1_DIRECT 0x00000100 -+#define DF_1_TRANS 0x00000200 -+#define DF_1_INTERPOSE 0x00000400 -+#define DF_1_NODEFLIB 0x00000800 -+#define DF_1_NODUMP 0x00001000 -+#define DF_1_CONFALT 0x00002000 -+#define DF_1_ENDFILTEE 0x00004000 -+#define DF_1_DISPRELDNE 0x00008000 -+#define DF_1_DISPRELPND 0x00010000 -+#define DF_1_NODIRECT 0x00020000 -+#define DF_1_IGNMULDEF 0x00040000 -+#define DF_1_NOKSYMS 0x00080000 -+#define DF_1_NOHDR 0x00100000 -+#define DF_1_EDITED 0x00200000 -+#define DF_1_NORELOC 0x00400000 -+#define DF_1_SYMINTPOSE 0x00800000 -+#define DF_1_GLOBAUDIT 0x01000000 -+#define DF_1_SINGLETON 0x02000000 -+ -+#define DTF_1_PARINIT 0x00000001 -+#define DTF_1_CONFEXP 0x00000002 -+ -+ -+#define DF_P1_LAZYLOAD 0x00000001 -+#define DF_P1_GROUPPERM 0x00000002 -+ -+ -+ -+ -+typedef struct { -+ Elf32_Half vd_version; -+ Elf32_Half vd_flags; -+ Elf32_Half vd_ndx; -+ Elf32_Half vd_cnt; -+ Elf32_Word vd_hash; -+ Elf32_Word vd_aux; -+ Elf32_Word vd_next; -+} Elf32_Verdef; -+ -+typedef struct { -+ Elf64_Half vd_version; -+ Elf64_Half vd_flags; -+ Elf64_Half vd_ndx; -+ Elf64_Half vd_cnt; -+ Elf64_Word vd_hash; -+ Elf64_Word vd_aux; -+ Elf64_Word vd_next; -+} Elf64_Verdef; -+ -+ -+ -+#define VER_DEF_NONE 0 -+#define VER_DEF_CURRENT 1 -+#define VER_DEF_NUM 2 -+ -+ -+#define VER_FLG_BASE 0x1 -+#define VER_FLG_WEAK 0x2 -+ -+ -+#define VER_NDX_LOCAL 0 -+#define VER_NDX_GLOBAL 1 -+#define VER_NDX_LORESERVE 0xff00 -+#define VER_NDX_ELIMINATE 0xff01 -+ -+ -+ -+typedef struct { -+ Elf32_Word vda_name; -+ Elf32_Word vda_next; -+} Elf32_Verdaux; -+ -+typedef struct { -+ Elf64_Word vda_name; -+ Elf64_Word vda_next; -+} Elf64_Verdaux; -+ -+ -+ -+ -+typedef struct { -+ Elf32_Half vn_version; -+ Elf32_Half vn_cnt; -+ Elf32_Word vn_file; -+ Elf32_Word vn_aux; -+ Elf32_Word vn_next; -+} Elf32_Verneed; -+ -+typedef struct { -+ Elf64_Half vn_version; -+ Elf64_Half vn_cnt; -+ Elf64_Word vn_file; -+ Elf64_Word vn_aux; -+ Elf64_Word vn_next; -+} Elf64_Verneed; -+ -+ -+ -+#define VER_NEED_NONE 0 -+#define VER_NEED_CURRENT 1 -+#define VER_NEED_NUM 2 -+ -+ -+ -+typedef struct { -+ Elf32_Word vna_hash; -+ Elf32_Half vna_flags; -+ Elf32_Half vna_other; -+ Elf32_Word vna_name; -+ Elf32_Word vna_next; -+} Elf32_Vernaux; -+ -+typedef struct { -+ Elf64_Word vna_hash; -+ Elf64_Half vna_flags; -+ Elf64_Half vna_other; -+ Elf64_Word vna_name; -+ Elf64_Word vna_next; -+} Elf64_Vernaux; -+ -+ -+ -+#define VER_FLG_WEAK 0x2 -+ -+ -+ -+typedef struct { -+ uint32_t a_type; -+ union { -+ uint32_t a_val; -+ } a_un; -+} Elf32_auxv_t; -+ -+typedef struct { -+ uint64_t a_type; -+ union { -+ uint64_t a_val; -+ } a_un; -+} Elf64_auxv_t; -+ -+ -+ -+#define AT_NULL 0 -+#define AT_IGNORE 1 -+#define AT_EXECFD 2 -+#define AT_PHDR 3 -+#define AT_PHENT 4 -+#define AT_PHNUM 5 -+#define AT_PAGESZ 6 -+#define AT_BASE 7 -+#define AT_FLAGS 8 -+#define AT_ENTRY 9 -+#define AT_NOTELF 10 -+#define AT_UID 11 -+#define AT_EUID 12 -+#define AT_GID 13 -+#define AT_EGID 14 -+#define AT_CLKTCK 17 -+ -+ -+#define AT_PLATFORM 15 -+#define AT_HWCAP 16 -+ -+ -+ -+ -+#define AT_FPUCW 18 -+ -+ -+#define AT_DCACHEBSIZE 19 -+#define AT_ICACHEBSIZE 20 -+#define AT_UCACHEBSIZE 21 -+ -+ -+ -+#define AT_IGNOREPPC 22 -+ -+#define AT_SECURE 23 -+ -+#define AT_BASE_PLATFORM 24 -+ -+#define AT_RANDOM 25 -+ -+#define AT_HWCAP2 26 -+ -+#define AT_EXECFN 31 -+ -+ -+ -+#define AT_SYSINFO 32 -+#define AT_SYSINFO_EHDR 33 -+ -+ -+ -+#define AT_L1I_CACHESHAPE 34 -+#define AT_L1D_CACHESHAPE 35 -+#define AT_L2_CACHESHAPE 36 -+#define AT_L3_CACHESHAPE 37 -+ -+ -+ -+ -+typedef struct { -+ Elf32_Word n_namesz; -+ Elf32_Word n_descsz; -+ Elf32_Word n_type; -+} Elf32_Nhdr; -+ -+typedef struct { -+ Elf64_Word n_namesz; -+ Elf64_Word n_descsz; -+ Elf64_Word n_type; -+} Elf64_Nhdr; -+ -+ -+ -+ -+#define ELF_NOTE_SOLARIS "SUNW Solaris" -+ -+ -+#define ELF_NOTE_GNU "GNU" -+ -+ -+ -+ -+ -+#define ELF_NOTE_PAGESIZE_HINT 1 -+ -+ -+#define NT_GNU_ABI_TAG 1 -+#define ELF_NOTE_ABI NT_GNU_ABI_TAG -+ -+ -+ -+#define ELF_NOTE_OS_LINUX 0 -+#define ELF_NOTE_OS_GNU 1 -+#define ELF_NOTE_OS_SOLARIS2 2 -+#define ELF_NOTE_OS_FREEBSD 3 -+ -+#define NT_GNU_BUILD_ID 3 -+#define NT_GNU_GOLD_VERSION 4 -+ -+ -+ -+typedef struct { -+ Elf32_Xword m_value; -+ Elf32_Word m_info; -+ Elf32_Word m_poffset; -+ Elf32_Half m_repeat; -+ Elf32_Half m_stride; -+} Elf32_Move; -+ -+typedef struct { -+ Elf64_Xword m_value; -+ Elf64_Xword m_info; -+ Elf64_Xword m_poffset; -+ Elf64_Half m_repeat; -+ Elf64_Half m_stride; -+} Elf64_Move; -+ -+ -+#define ELF32_M_SYM(info) ((info) >> 8) -+#define ELF32_M_SIZE(info) ((unsigned char) (info)) -+#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) -+ -+#define ELF64_M_SYM(info) ELF32_M_SYM (info) -+#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) -+#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) -+ -+#define EF_CPU32 0x00810000 -+ -+#define R_68K_NONE 0 -+#define R_68K_32 1 -+#define R_68K_16 2 -+#define R_68K_8 3 -+#define R_68K_PC32 4 -+#define R_68K_PC16 5 -+#define R_68K_PC8 6 -+#define R_68K_GOT32 7 -+#define R_68K_GOT16 8 -+#define R_68K_GOT8 9 -+#define R_68K_GOT32O 10 -+#define R_68K_GOT16O 11 -+#define R_68K_GOT8O 12 -+#define R_68K_PLT32 13 -+#define R_68K_PLT16 14 -+#define R_68K_PLT8 15 -+#define R_68K_PLT32O 16 -+#define R_68K_PLT16O 17 -+#define R_68K_PLT8O 18 -+#define R_68K_COPY 19 -+#define R_68K_GLOB_DAT 20 -+#define R_68K_JMP_SLOT 21 -+#define R_68K_RELATIVE 22 -+#define R_68K_NUM 23 -+ -+#define R_386_NONE 0 -+#define R_386_32 1 -+#define R_386_PC32 2 -+#define R_386_GOT32 3 -+#define R_386_PLT32 4 -+#define R_386_COPY 5 -+#define R_386_GLOB_DAT 6 -+#define R_386_JMP_SLOT 7 -+#define R_386_RELATIVE 8 -+#define R_386_GOTOFF 9 -+#define R_386_GOTPC 10 -+#define R_386_32PLT 11 -+#define R_386_TLS_TPOFF 14 -+#define R_386_TLS_IE 15 -+#define R_386_TLS_GOTIE 16 -+#define R_386_TLS_LE 17 -+#define R_386_TLS_GD 18 -+#define R_386_TLS_LDM 19 -+#define R_386_16 20 -+#define R_386_PC16 21 -+#define R_386_8 22 -+#define R_386_PC8 23 -+#define R_386_TLS_GD_32 24 -+#define R_386_TLS_GD_PUSH 25 -+#define R_386_TLS_GD_CALL 26 -+#define R_386_TLS_GD_POP 27 -+#define R_386_TLS_LDM_32 28 -+#define R_386_TLS_LDM_PUSH 29 -+#define R_386_TLS_LDM_CALL 30 -+#define R_386_TLS_LDM_POP 31 -+#define R_386_TLS_LDO_32 32 -+#define R_386_TLS_IE_32 33 -+#define R_386_TLS_LE_32 34 -+#define R_386_TLS_DTPMOD32 35 -+#define R_386_TLS_DTPOFF32 36 -+#define R_386_TLS_TPOFF32 37 -+#define R_386_SIZE32 38 -+#define R_386_TLS_GOTDESC 39 -+#define R_386_TLS_DESC_CALL 40 -+#define R_386_TLS_DESC 41 -+#define R_386_IRELATIVE 42 -+#define R_386_NUM 43 -+ -+ -+ -+ -+ -+#define STT_SPARC_REGISTER 13 -+ -+ -+ -+#define EF_SPARCV9_MM 3 -+#define EF_SPARCV9_TSO 0 -+#define EF_SPARCV9_PSO 1 -+#define EF_SPARCV9_RMO 2 -+#define EF_SPARC_LEDATA 0x800000 -+#define EF_SPARC_EXT_MASK 0xFFFF00 -+#define EF_SPARC_32PLUS 0x000100 -+#define EF_SPARC_SUN_US1 0x000200 -+#define EF_SPARC_HAL_R1 0x000400 -+#define EF_SPARC_SUN_US3 0x000800 -+ -+ -+ -+#define R_SPARC_NONE 0 -+#define R_SPARC_8 1 -+#define R_SPARC_16 2 -+#define R_SPARC_32 3 -+#define R_SPARC_DISP8 4 -+#define R_SPARC_DISP16 5 -+#define R_SPARC_DISP32 6 -+#define R_SPARC_WDISP30 7 -+#define R_SPARC_WDISP22 8 -+#define R_SPARC_HI22 9 -+#define R_SPARC_22 10 -+#define R_SPARC_13 11 -+#define R_SPARC_LO10 12 -+#define R_SPARC_GOT10 13 -+#define R_SPARC_GOT13 14 -+#define R_SPARC_GOT22 15 -+#define R_SPARC_PC10 16 -+#define R_SPARC_PC22 17 -+#define R_SPARC_WPLT30 18 -+#define R_SPARC_COPY 19 -+#define R_SPARC_GLOB_DAT 20 -+#define R_SPARC_JMP_SLOT 21 -+#define R_SPARC_RELATIVE 22 -+#define R_SPARC_UA32 23 -+ -+ -+ -+#define R_SPARC_PLT32 24 -+#define R_SPARC_HIPLT22 25 -+#define R_SPARC_LOPLT10 26 -+#define R_SPARC_PCPLT32 27 -+#define R_SPARC_PCPLT22 28 -+#define R_SPARC_PCPLT10 29 -+#define R_SPARC_10 30 -+#define R_SPARC_11 31 -+#define R_SPARC_64 32 -+#define R_SPARC_OLO10 33 -+#define R_SPARC_HH22 34 -+#define R_SPARC_HM10 35 -+#define R_SPARC_LM22 36 -+#define R_SPARC_PC_HH22 37 -+#define R_SPARC_PC_HM10 38 -+#define R_SPARC_PC_LM22 39 -+#define R_SPARC_WDISP16 40 -+#define R_SPARC_WDISP19 41 -+#define R_SPARC_GLOB_JMP 42 -+#define R_SPARC_7 43 -+#define R_SPARC_5 44 -+#define R_SPARC_6 45 -+#define R_SPARC_DISP64 46 -+#define R_SPARC_PLT64 47 -+#define R_SPARC_HIX22 48 -+#define R_SPARC_LOX10 49 -+#define R_SPARC_H44 50 -+#define R_SPARC_M44 51 -+#define R_SPARC_L44 52 -+#define R_SPARC_REGISTER 53 -+#define R_SPARC_UA64 54 -+#define R_SPARC_UA16 55 -+#define R_SPARC_TLS_GD_HI22 56 -+#define R_SPARC_TLS_GD_LO10 57 -+#define R_SPARC_TLS_GD_ADD 58 -+#define R_SPARC_TLS_GD_CALL 59 -+#define R_SPARC_TLS_LDM_HI22 60 -+#define R_SPARC_TLS_LDM_LO10 61 -+#define R_SPARC_TLS_LDM_ADD 62 -+#define R_SPARC_TLS_LDM_CALL 63 -+#define R_SPARC_TLS_LDO_HIX22 64 -+#define R_SPARC_TLS_LDO_LOX10 65 -+#define R_SPARC_TLS_LDO_ADD 66 -+#define R_SPARC_TLS_IE_HI22 67 -+#define R_SPARC_TLS_IE_LO10 68 -+#define R_SPARC_TLS_IE_LD 69 -+#define R_SPARC_TLS_IE_LDX 70 -+#define R_SPARC_TLS_IE_ADD 71 -+#define R_SPARC_TLS_LE_HIX22 72 -+#define R_SPARC_TLS_LE_LOX10 73 -+#define R_SPARC_TLS_DTPMOD32 74 -+#define R_SPARC_TLS_DTPMOD64 75 -+#define R_SPARC_TLS_DTPOFF32 76 -+#define R_SPARC_TLS_DTPOFF64 77 -+#define R_SPARC_TLS_TPOFF32 78 -+#define R_SPARC_TLS_TPOFF64 79 -+#define R_SPARC_GOTDATA_HIX22 80 -+#define R_SPARC_GOTDATA_LOX10 81 -+#define R_SPARC_GOTDATA_OP_HIX22 82 -+#define R_SPARC_GOTDATA_OP_LOX10 83 -+#define R_SPARC_GOTDATA_OP 84 -+#define R_SPARC_H34 85 -+#define R_SPARC_SIZE32 86 -+#define R_SPARC_SIZE64 87 -+#define R_SPARC_GNU_VTINHERIT 250 -+#define R_SPARC_GNU_VTENTRY 251 -+#define R_SPARC_REV32 252 -+ -+#define R_SPARC_NUM 253 -+ -+ -+ -+#define DT_SPARC_REGISTER 0x70000001 -+#define DT_SPARC_NUM 2 -+ -+ -+#define EF_MIPS_NOREORDER 1 -+#define EF_MIPS_PIC 2 -+#define EF_MIPS_CPIC 4 -+#define EF_MIPS_XGOT 8 -+#define EF_MIPS_64BIT_WHIRL 16 -+#define EF_MIPS_ABI2 32 -+#define EF_MIPS_ABI_ON32 64 -+#define EF_MIPS_ARCH 0xf0000000 -+ -+ -+ -+#define EF_MIPS_ARCH_1 0x00000000 -+#define EF_MIPS_ARCH_2 0x10000000 -+#define EF_MIPS_ARCH_3 0x20000000 -+#define EF_MIPS_ARCH_4 0x30000000 -+#define EF_MIPS_ARCH_5 0x40000000 -+#define EF_MIPS_ARCH_32 0x50000000 -+#define EF_MIPS_ARCH_64 0x60000000 -+#define EF_MIPS_ARCH_32R2 0x70000000 -+#define EF_MIPS_ARCH_64R2 0x80000000 -+ -+ -+#define E_MIPS_ARCH_1 0x00000000 -+#define E_MIPS_ARCH_2 0x10000000 -+#define E_MIPS_ARCH_3 0x20000000 -+#define E_MIPS_ARCH_4 0x30000000 -+#define E_MIPS_ARCH_5 0x40000000 -+#define E_MIPS_ARCH_32 0x50000000 -+#define E_MIPS_ARCH_64 0x60000000 -+ -+ -+ -+#define SHN_MIPS_ACOMMON 0xff00 -+#define SHN_MIPS_TEXT 0xff01 -+#define SHN_MIPS_DATA 0xff02 -+#define SHN_MIPS_SCOMMON 0xff03 -+#define SHN_MIPS_SUNDEFINED 0xff04 -+ -+ -+ -+#define SHT_MIPS_LIBLIST 0x70000000 -+#define SHT_MIPS_MSYM 0x70000001 -+#define SHT_MIPS_CONFLICT 0x70000002 -+#define SHT_MIPS_GPTAB 0x70000003 -+#define SHT_MIPS_UCODE 0x70000004 -+#define SHT_MIPS_DEBUG 0x70000005 -+#define SHT_MIPS_REGINFO 0x70000006 -+#define SHT_MIPS_PACKAGE 0x70000007 -+#define SHT_MIPS_PACKSYM 0x70000008 -+#define SHT_MIPS_RELD 0x70000009 -+#define SHT_MIPS_IFACE 0x7000000b -+#define SHT_MIPS_CONTENT 0x7000000c -+#define SHT_MIPS_OPTIONS 0x7000000d -+#define SHT_MIPS_SHDR 0x70000010 -+#define SHT_MIPS_FDESC 0x70000011 -+#define SHT_MIPS_EXTSYM 0x70000012 -+#define SHT_MIPS_DENSE 0x70000013 -+#define SHT_MIPS_PDESC 0x70000014 -+#define SHT_MIPS_LOCSYM 0x70000015 -+#define SHT_MIPS_AUXSYM 0x70000016 -+#define SHT_MIPS_OPTSYM 0x70000017 -+#define SHT_MIPS_LOCSTR 0x70000018 -+#define SHT_MIPS_LINE 0x70000019 -+#define SHT_MIPS_RFDESC 0x7000001a -+#define SHT_MIPS_DELTASYM 0x7000001b -+#define SHT_MIPS_DELTAINST 0x7000001c -+#define SHT_MIPS_DELTACLASS 0x7000001d -+#define SHT_MIPS_DWARF 0x7000001e -+#define SHT_MIPS_DELTADECL 0x7000001f -+#define SHT_MIPS_SYMBOL_LIB 0x70000020 -+#define SHT_MIPS_EVENTS 0x70000021 -+#define SHT_MIPS_TRANSLATE 0x70000022 -+#define SHT_MIPS_PIXIE 0x70000023 -+#define SHT_MIPS_XLATE 0x70000024 -+#define SHT_MIPS_XLATE_DEBUG 0x70000025 -+#define SHT_MIPS_WHIRL 0x70000026 -+#define SHT_MIPS_EH_REGION 0x70000027 -+#define SHT_MIPS_XLATE_OLD 0x70000028 -+#define SHT_MIPS_PDR_EXCEPTION 0x70000029 -+ -+ -+ -+#define SHF_MIPS_GPREL 0x10000000 -+#define SHF_MIPS_MERGE 0x20000000 -+#define SHF_MIPS_ADDR 0x40000000 -+#define SHF_MIPS_STRINGS 0x80000000 -+#define SHF_MIPS_NOSTRIP 0x08000000 -+#define SHF_MIPS_LOCAL 0x04000000 -+#define SHF_MIPS_NAMES 0x02000000 -+#define SHF_MIPS_NODUPE 0x01000000 -+ -+ -+ -+ -+ -+#define STO_MIPS_DEFAULT 0x0 -+#define STO_MIPS_INTERNAL 0x1 -+#define STO_MIPS_HIDDEN 0x2 -+#define STO_MIPS_PROTECTED 0x3 -+#define STO_MIPS_PLT 0x8 -+#define STO_MIPS_SC_ALIGN_UNUSED 0xff -+ -+ -+#define STB_MIPS_SPLIT_COMMON 13 -+ -+ -+ -+typedef union { -+ struct { -+ Elf32_Word gt_current_g_value; -+ Elf32_Word gt_unused; -+ } gt_header; -+ struct { -+ Elf32_Word gt_g_value; -+ Elf32_Word gt_bytes; -+ } gt_entry; -+} Elf32_gptab; -+ -+ -+ -+typedef struct { -+ Elf32_Word ri_gprmask; -+ Elf32_Word ri_cprmask[4]; -+ Elf32_Sword ri_gp_value; -+} Elf32_RegInfo; -+ -+ -+ -+typedef struct { -+ unsigned char kind; -+ -+ unsigned char size; -+ Elf32_Section section; -+ -+ Elf32_Word info; -+} Elf_Options; -+ -+ -+ -+#define ODK_NULL 0 -+#define ODK_REGINFO 1 -+#define ODK_EXCEPTIONS 2 -+#define ODK_PAD 3 -+#define ODK_HWPATCH 4 -+#define ODK_FILL 5 -+#define ODK_TAGS 6 -+#define ODK_HWAND 7 -+#define ODK_HWOR 8 -+ -+ -+ -+#define OEX_FPU_MIN 0x1f -+#define OEX_FPU_MAX 0x1f00 -+#define OEX_PAGE0 0x10000 -+#define OEX_SMM 0x20000 -+#define OEX_FPDBUG 0x40000 -+#define OEX_PRECISEFP OEX_FPDBUG -+#define OEX_DISMISS 0x80000 -+ -+#define OEX_FPU_INVAL 0x10 -+#define OEX_FPU_DIV0 0x08 -+#define OEX_FPU_OFLO 0x04 -+#define OEX_FPU_UFLO 0x02 -+#define OEX_FPU_INEX 0x01 -+ -+ -+ -+#define OHW_R4KEOP 0x1 -+#define OHW_R8KPFETCH 0x2 -+#define OHW_R5KEOP 0x4 -+#define OHW_R5KCVTL 0x8 -+ -+#define OPAD_PREFIX 0x1 -+#define OPAD_POSTFIX 0x2 -+#define OPAD_SYMBOL 0x4 -+ -+ -+ -+typedef struct { -+ Elf32_Word hwp_flags1; -+ Elf32_Word hwp_flags2; -+} Elf_Options_Hw; -+ -+ -+ -+#define OHWA0_R4KEOP_CHECKED 0x00000001 -+#define OHWA1_R4KEOP_CLEAN 0x00000002 -+ -+ -+ -+#define R_MIPS_NONE 0 -+#define R_MIPS_16 1 -+#define R_MIPS_32 2 -+#define R_MIPS_REL32 3 -+#define R_MIPS_26 4 -+#define R_MIPS_HI16 5 -+#define R_MIPS_LO16 6 -+#define R_MIPS_GPREL16 7 -+#define R_MIPS_LITERAL 8 -+#define R_MIPS_GOT16 9 -+#define R_MIPS_PC16 10 -+#define R_MIPS_CALL16 11 -+#define R_MIPS_GPREL32 12 -+ -+#define R_MIPS_SHIFT5 16 -+#define R_MIPS_SHIFT6 17 -+#define R_MIPS_64 18 -+#define R_MIPS_GOT_DISP 19 -+#define R_MIPS_GOT_PAGE 20 -+#define R_MIPS_GOT_OFST 21 -+#define R_MIPS_GOT_HI16 22 -+#define R_MIPS_GOT_LO16 23 -+#define R_MIPS_SUB 24 -+#define R_MIPS_INSERT_A 25 -+#define R_MIPS_INSERT_B 26 -+#define R_MIPS_DELETE 27 -+#define R_MIPS_HIGHER 28 -+#define R_MIPS_HIGHEST 29 -+#define R_MIPS_CALL_HI16 30 -+#define R_MIPS_CALL_LO16 31 -+#define R_MIPS_SCN_DISP 32 -+#define R_MIPS_REL16 33 -+#define R_MIPS_ADD_IMMEDIATE 34 -+#define R_MIPS_PJUMP 35 -+#define R_MIPS_RELGOT 36 -+#define R_MIPS_JALR 37 -+#define R_MIPS_TLS_DTPMOD32 38 -+#define R_MIPS_TLS_DTPREL32 39 -+#define R_MIPS_TLS_DTPMOD64 40 -+#define R_MIPS_TLS_DTPREL64 41 -+#define R_MIPS_TLS_GD 42 -+#define R_MIPS_TLS_LDM 43 -+#define R_MIPS_TLS_DTPREL_HI16 44 -+#define R_MIPS_TLS_DTPREL_LO16 45 -+#define R_MIPS_TLS_GOTTPREL 46 -+#define R_MIPS_TLS_TPREL32 47 -+#define R_MIPS_TLS_TPREL64 48 -+#define R_MIPS_TLS_TPREL_HI16 49 -+#define R_MIPS_TLS_TPREL_LO16 50 -+#define R_MIPS_GLOB_DAT 51 -+#define R_MIPS_COPY 126 -+#define R_MIPS_JUMP_SLOT 127 -+ -+#define R_MIPS_NUM 128 -+ -+ -+ -+#define PT_MIPS_REGINFO 0x70000000 -+#define PT_MIPS_RTPROC 0x70000001 -+#define PT_MIPS_OPTIONS 0x70000002 -+ -+ -+ -+#define PF_MIPS_LOCAL 0x10000000 -+ -+ -+ -+#define DT_MIPS_RLD_VERSION 0x70000001 -+#define DT_MIPS_TIME_STAMP 0x70000002 -+#define DT_MIPS_ICHECKSUM 0x70000003 -+#define DT_MIPS_IVERSION 0x70000004 -+#define DT_MIPS_FLAGS 0x70000005 -+#define DT_MIPS_BASE_ADDRESS 0x70000006 -+#define DT_MIPS_MSYM 0x70000007 -+#define DT_MIPS_CONFLICT 0x70000008 -+#define DT_MIPS_LIBLIST 0x70000009 -+#define DT_MIPS_LOCAL_GOTNO 0x7000000a -+#define DT_MIPS_CONFLICTNO 0x7000000b -+#define DT_MIPS_LIBLISTNO 0x70000010 -+#define DT_MIPS_SYMTABNO 0x70000011 -+#define DT_MIPS_UNREFEXTNO 0x70000012 -+#define DT_MIPS_GOTSYM 0x70000013 -+#define DT_MIPS_HIPAGENO 0x70000014 -+#define DT_MIPS_RLD_MAP 0x70000016 -+#define DT_MIPS_DELTA_CLASS 0x70000017 -+#define DT_MIPS_DELTA_CLASS_NO 0x70000018 -+ -+#define DT_MIPS_DELTA_INSTANCE 0x70000019 -+#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a -+ -+#define DT_MIPS_DELTA_RELOC 0x7000001b -+#define DT_MIPS_DELTA_RELOC_NO 0x7000001c -+ -+#define DT_MIPS_DELTA_SYM 0x7000001d -+ -+#define DT_MIPS_DELTA_SYM_NO 0x7000001e -+ -+#define DT_MIPS_DELTA_CLASSSYM 0x70000020 -+ -+#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 -+ -+#define DT_MIPS_CXX_FLAGS 0x70000022 -+#define DT_MIPS_PIXIE_INIT 0x70000023 -+#define DT_MIPS_SYMBOL_LIB 0x70000024 -+#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 -+#define DT_MIPS_LOCAL_GOTIDX 0x70000026 -+#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 -+#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 -+#define DT_MIPS_OPTIONS 0x70000029 -+#define DT_MIPS_INTERFACE 0x7000002a -+#define DT_MIPS_DYNSTR_ALIGN 0x7000002b -+#define DT_MIPS_INTERFACE_SIZE 0x7000002c -+#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d -+ -+#define DT_MIPS_PERF_SUFFIX 0x7000002e -+ -+#define DT_MIPS_COMPACT_SIZE 0x7000002f -+#define DT_MIPS_GP_VALUE 0x70000030 -+#define DT_MIPS_AUX_DYNAMIC 0x70000031 -+ -+#define DT_MIPS_PLTGOT 0x70000032 -+ -+#define DT_MIPS_RWPLT 0x70000034 -+#define DT_MIPS_NUM 0x35 -+ -+ -+ -+#define RHF_NONE 0 -+#define RHF_QUICKSTART (1 << 0) -+#define RHF_NOTPOT (1 << 1) -+#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) -+#define RHF_NO_MOVE (1 << 3) -+#define RHF_SGI_ONLY (1 << 4) -+#define RHF_GUARANTEE_INIT (1 << 5) -+#define RHF_DELTA_C_PLUS_PLUS (1 << 6) -+#define RHF_GUARANTEE_START_INIT (1 << 7) -+#define RHF_PIXIE (1 << 8) -+#define RHF_DEFAULT_DELAY_LOAD (1 << 9) -+#define RHF_REQUICKSTART (1 << 10) -+#define RHF_REQUICKSTARTED (1 << 11) -+#define RHF_CORD (1 << 12) -+#define RHF_NO_UNRES_UNDEF (1 << 13) -+#define RHF_RLD_ORDER_SAFE (1 << 14) -+ -+ -+ -+typedef struct -+{ -+ Elf32_Word l_name; -+ Elf32_Word l_time_stamp; -+ Elf32_Word l_checksum; -+ Elf32_Word l_version; -+ Elf32_Word l_flags; -+} Elf32_Lib; -+ -+typedef struct -+{ -+ Elf64_Word l_name; -+ Elf64_Word l_time_stamp; -+ Elf64_Word l_checksum; -+ Elf64_Word l_version; -+ Elf64_Word l_flags; -+} Elf64_Lib; -+ -+ -+ -+ -+#define LL_NONE 0 -+#define LL_EXACT_MATCH (1 << 0) -+#define LL_IGNORE_INT_VER (1 << 1) -+#define LL_REQUIRE_MINOR (1 << 2) -+#define LL_EXPORTS (1 << 3) -+#define LL_DELAY_LOAD (1 << 4) -+#define LL_DELTA (1 << 5) -+ -+ -+ -+typedef Elf32_Addr Elf32_Conflict; -+ -+ -+ -+ -+ -+ -+#define EF_PARISC_TRAPNIL 0x00010000 -+#define EF_PARISC_EXT 0x00020000 -+#define EF_PARISC_LSB 0x00040000 -+#define EF_PARISC_WIDE 0x00080000 -+#define EF_PARISC_NO_KABP 0x00100000 -+ -+#define EF_PARISC_LAZYSWAP 0x00400000 -+#define EF_PARISC_ARCH 0x0000ffff -+ -+ -+ -+#define EFA_PARISC_1_0 0x020b -+#define EFA_PARISC_1_1 0x0210 -+#define EFA_PARISC_2_0 0x0214 -+ -+ -+ -+#define SHN_PARISC_ANSI_COMMON 0xff00 -+ -+#define SHN_PARISC_HUGE_COMMON 0xff01 -+ -+ -+ -+#define SHT_PARISC_EXT 0x70000000 -+#define SHT_PARISC_UNWIND 0x70000001 -+#define SHT_PARISC_DOC 0x70000002 -+ -+ -+ -+#define SHF_PARISC_SHORT 0x20000000 -+#define SHF_PARISC_HUGE 0x40000000 -+#define SHF_PARISC_SBP 0x80000000 -+ -+ -+ -+#define STT_PARISC_MILLICODE 13 -+ -+#define STT_HP_OPAQUE (STT_LOOS + 0x1) -+#define STT_HP_STUB (STT_LOOS + 0x2) -+ -+ -+ -+#define R_PARISC_NONE 0 -+#define R_PARISC_DIR32 1 -+#define R_PARISC_DIR21L 2 -+#define R_PARISC_DIR17R 3 -+#define R_PARISC_DIR17F 4 -+#define R_PARISC_DIR14R 6 -+#define R_PARISC_PCREL32 9 -+#define R_PARISC_PCREL21L 10 -+#define R_PARISC_PCREL17R 11 -+#define R_PARISC_PCREL17F 12 -+#define R_PARISC_PCREL14R 14 -+#define R_PARISC_DPREL21L 18 -+#define R_PARISC_DPREL14R 22 -+#define R_PARISC_GPREL21L 26 -+#define R_PARISC_GPREL14R 30 -+#define R_PARISC_LTOFF21L 34 -+#define R_PARISC_LTOFF14R 38 -+#define R_PARISC_SECREL32 41 -+#define R_PARISC_SEGBASE 48 -+#define R_PARISC_SEGREL32 49 -+#define R_PARISC_PLTOFF21L 50 -+#define R_PARISC_PLTOFF14R 54 -+#define R_PARISC_LTOFF_FPTR32 57 -+#define R_PARISC_LTOFF_FPTR21L 58 -+#define R_PARISC_LTOFF_FPTR14R 62 -+#define R_PARISC_FPTR64 64 -+#define R_PARISC_PLABEL32 65 -+#define R_PARISC_PLABEL21L 66 -+#define R_PARISC_PLABEL14R 70 -+#define R_PARISC_PCREL64 72 -+#define R_PARISC_PCREL22F 74 -+#define R_PARISC_PCREL14WR 75 -+#define R_PARISC_PCREL14DR 76 -+#define R_PARISC_PCREL16F 77 -+#define R_PARISC_PCREL16WF 78 -+#define R_PARISC_PCREL16DF 79 -+#define R_PARISC_DIR64 80 -+#define R_PARISC_DIR14WR 83 -+#define R_PARISC_DIR14DR 84 -+#define R_PARISC_DIR16F 85 -+#define R_PARISC_DIR16WF 86 -+#define R_PARISC_DIR16DF 87 -+#define R_PARISC_GPREL64 88 -+#define R_PARISC_GPREL14WR 91 -+#define R_PARISC_GPREL14DR 92 -+#define R_PARISC_GPREL16F 93 -+#define R_PARISC_GPREL16WF 94 -+#define R_PARISC_GPREL16DF 95 -+#define R_PARISC_LTOFF64 96 -+#define R_PARISC_LTOFF14WR 99 -+#define R_PARISC_LTOFF14DR 100 -+#define R_PARISC_LTOFF16F 101 -+#define R_PARISC_LTOFF16WF 102 -+#define R_PARISC_LTOFF16DF 103 -+#define R_PARISC_SECREL64 104 -+#define R_PARISC_SEGREL64 112 -+#define R_PARISC_PLTOFF14WR 115 -+#define R_PARISC_PLTOFF14DR 116 -+#define R_PARISC_PLTOFF16F 117 -+#define R_PARISC_PLTOFF16WF 118 -+#define R_PARISC_PLTOFF16DF 119 -+#define R_PARISC_LTOFF_FPTR64 120 -+#define R_PARISC_LTOFF_FPTR14WR 123 -+#define R_PARISC_LTOFF_FPTR14DR 124 -+#define R_PARISC_LTOFF_FPTR16F 125 -+#define R_PARISC_LTOFF_FPTR16WF 126 -+#define R_PARISC_LTOFF_FPTR16DF 127 -+#define R_PARISC_LORESERVE 128 -+#define R_PARISC_COPY 128 -+#define R_PARISC_IPLT 129 -+#define R_PARISC_EPLT 130 -+#define R_PARISC_TPREL32 153 -+#define R_PARISC_TPREL21L 154 -+#define R_PARISC_TPREL14R 158 -+#define R_PARISC_LTOFF_TP21L 162 -+#define R_PARISC_LTOFF_TP14R 166 -+#define R_PARISC_LTOFF_TP14F 167 -+#define R_PARISC_TPREL64 216 -+#define R_PARISC_TPREL14WR 219 -+#define R_PARISC_TPREL14DR 220 -+#define R_PARISC_TPREL16F 221 -+#define R_PARISC_TPREL16WF 222 -+#define R_PARISC_TPREL16DF 223 -+#define R_PARISC_LTOFF_TP64 224 -+#define R_PARISC_LTOFF_TP14WR 227 -+#define R_PARISC_LTOFF_TP14DR 228 -+#define R_PARISC_LTOFF_TP16F 229 -+#define R_PARISC_LTOFF_TP16WF 230 -+#define R_PARISC_LTOFF_TP16DF 231 -+#define R_PARISC_GNU_VTENTRY 232 -+#define R_PARISC_GNU_VTINHERIT 233 -+#define R_PARISC_TLS_GD21L 234 -+#define R_PARISC_TLS_GD14R 235 -+#define R_PARISC_TLS_GDCALL 236 -+#define R_PARISC_TLS_LDM21L 237 -+#define R_PARISC_TLS_LDM14R 238 -+#define R_PARISC_TLS_LDMCALL 239 -+#define R_PARISC_TLS_LDO21L 240 -+#define R_PARISC_TLS_LDO14R 241 -+#define R_PARISC_TLS_DTPMOD32 242 -+#define R_PARISC_TLS_DTPMOD64 243 -+#define R_PARISC_TLS_DTPOFF32 244 -+#define R_PARISC_TLS_DTPOFF64 245 -+#define R_PARISC_TLS_LE21L R_PARISC_TPREL21L -+#define R_PARISC_TLS_LE14R R_PARISC_TPREL14R -+#define R_PARISC_TLS_IE21L R_PARISC_LTOFF_TP21L -+#define R_PARISC_TLS_IE14R R_PARISC_LTOFF_TP14R -+#define R_PARISC_TLS_TPREL32 R_PARISC_TPREL32 -+#define R_PARISC_TLS_TPREL64 R_PARISC_TPREL64 -+#define R_PARISC_HIRESERVE 255 -+ -+ -+ -+#define PT_HP_TLS (PT_LOOS + 0x0) -+#define PT_HP_CORE_NONE (PT_LOOS + 0x1) -+#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) -+#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) -+#define PT_HP_CORE_COMM (PT_LOOS + 0x4) -+#define PT_HP_CORE_PROC (PT_LOOS + 0x5) -+#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) -+#define PT_HP_CORE_STACK (PT_LOOS + 0x7) -+#define PT_HP_CORE_SHM (PT_LOOS + 0x8) -+#define PT_HP_CORE_MMF (PT_LOOS + 0x9) -+#define PT_HP_PARALLEL (PT_LOOS + 0x10) -+#define PT_HP_FASTBIND (PT_LOOS + 0x11) -+#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) -+#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) -+#define PT_HP_STACK (PT_LOOS + 0x14) -+ -+#define PT_PARISC_ARCHEXT 0x70000000 -+#define PT_PARISC_UNWIND 0x70000001 -+ -+ -+ -+#define PF_PARISC_SBP 0x08000000 -+ -+#define PF_HP_PAGE_SIZE 0x00100000 -+#define PF_HP_FAR_SHARED 0x00200000 -+#define PF_HP_NEAR_SHARED 0x00400000 -+#define PF_HP_CODE 0x01000000 -+#define PF_HP_MODIFY 0x02000000 -+#define PF_HP_LAZYSWAP 0x04000000 -+#define PF_HP_SBP 0x08000000 -+ -+ -+ -+ -+ -+ -+#define EF_ALPHA_32BIT 1 -+#define EF_ALPHA_CANRELAX 2 -+ -+ -+ -+ -+#define SHT_ALPHA_DEBUG 0x70000001 -+#define SHT_ALPHA_REGINFO 0x70000002 -+ -+ -+ -+#define SHF_ALPHA_GPREL 0x10000000 -+ -+ -+#define STO_ALPHA_NOPV 0x80 -+#define STO_ALPHA_STD_GPLOAD 0x88 -+ -+ -+ -+#define R_ALPHA_NONE 0 -+#define R_ALPHA_REFLONG 1 -+#define R_ALPHA_REFQUAD 2 -+#define R_ALPHA_GPREL32 3 -+#define R_ALPHA_LITERAL 4 -+#define R_ALPHA_LITUSE 5 -+#define R_ALPHA_GPDISP 6 -+#define R_ALPHA_BRADDR 7 -+#define R_ALPHA_HINT 8 -+#define R_ALPHA_SREL16 9 -+#define R_ALPHA_SREL32 10 -+#define R_ALPHA_SREL64 11 -+#define R_ALPHA_GPRELHIGH 17 -+#define R_ALPHA_GPRELLOW 18 -+#define R_ALPHA_GPREL16 19 -+#define R_ALPHA_COPY 24 -+#define R_ALPHA_GLOB_DAT 25 -+#define R_ALPHA_JMP_SLOT 26 -+#define R_ALPHA_RELATIVE 27 -+#define R_ALPHA_TLS_GD_HI 28 -+#define R_ALPHA_TLSGD 29 -+#define R_ALPHA_TLS_LDM 30 -+#define R_ALPHA_DTPMOD64 31 -+#define R_ALPHA_GOTDTPREL 32 -+#define R_ALPHA_DTPREL64 33 -+#define R_ALPHA_DTPRELHI 34 -+#define R_ALPHA_DTPRELLO 35 -+#define R_ALPHA_DTPREL16 36 -+#define R_ALPHA_GOTTPREL 37 -+#define R_ALPHA_TPREL64 38 -+#define R_ALPHA_TPRELHI 39 -+#define R_ALPHA_TPRELLO 40 -+#define R_ALPHA_TPREL16 41 -+ -+#define R_ALPHA_NUM 46 -+ -+ -+#define LITUSE_ALPHA_ADDR 0 -+#define LITUSE_ALPHA_BASE 1 -+#define LITUSE_ALPHA_BYTOFF 2 -+#define LITUSE_ALPHA_JSR 3 -+#define LITUSE_ALPHA_TLS_GD 4 -+#define LITUSE_ALPHA_TLS_LDM 5 -+ -+ -+#define DT_ALPHA_PLTRO (DT_LOPROC + 0) -+#define DT_ALPHA_NUM 1 -+ -+ -+ -+ -+#define EF_PPC_EMB 0x80000000 -+ -+ -+#define EF_PPC_RELOCATABLE 0x00010000 -+#define EF_PPC_RELOCATABLE_LIB 0x00008000 -+ -+ -+ -+#define R_PPC_NONE 0 -+#define R_PPC_ADDR32 1 -+#define R_PPC_ADDR24 2 -+#define R_PPC_ADDR16 3 -+#define R_PPC_ADDR16_LO 4 -+#define R_PPC_ADDR16_HI 5 -+#define R_PPC_ADDR16_HA 6 -+#define R_PPC_ADDR14 7 -+#define R_PPC_ADDR14_BRTAKEN 8 -+#define R_PPC_ADDR14_BRNTAKEN 9 -+#define R_PPC_REL24 10 -+#define R_PPC_REL14 11 -+#define R_PPC_REL14_BRTAKEN 12 -+#define R_PPC_REL14_BRNTAKEN 13 -+#define R_PPC_GOT16 14 -+#define R_PPC_GOT16_LO 15 -+#define R_PPC_GOT16_HI 16 -+#define R_PPC_GOT16_HA 17 -+#define R_PPC_PLTREL24 18 -+#define R_PPC_COPY 19 -+#define R_PPC_GLOB_DAT 20 -+#define R_PPC_JMP_SLOT 21 -+#define R_PPC_RELATIVE 22 -+#define R_PPC_LOCAL24PC 23 -+#define R_PPC_UADDR32 24 -+#define R_PPC_UADDR16 25 -+#define R_PPC_REL32 26 -+#define R_PPC_PLT32 27 -+#define R_PPC_PLTREL32 28 -+#define R_PPC_PLT16_LO 29 -+#define R_PPC_PLT16_HI 30 -+#define R_PPC_PLT16_HA 31 -+#define R_PPC_SDAREL16 32 -+#define R_PPC_SECTOFF 33 -+#define R_PPC_SECTOFF_LO 34 -+#define R_PPC_SECTOFF_HI 35 -+#define R_PPC_SECTOFF_HA 36 -+ -+ -+#define R_PPC_TLS 67 -+#define R_PPC_DTPMOD32 68 -+#define R_PPC_TPREL16 69 -+#define R_PPC_TPREL16_LO 70 -+#define R_PPC_TPREL16_HI 71 -+#define R_PPC_TPREL16_HA 72 -+#define R_PPC_TPREL32 73 -+#define R_PPC_DTPREL16 74 -+#define R_PPC_DTPREL16_LO 75 -+#define R_PPC_DTPREL16_HI 76 -+#define R_PPC_DTPREL16_HA 77 -+#define R_PPC_DTPREL32 78 -+#define R_PPC_GOT_TLSGD16 79 -+#define R_PPC_GOT_TLSGD16_LO 80 -+#define R_PPC_GOT_TLSGD16_HI 81 -+#define R_PPC_GOT_TLSGD16_HA 82 -+#define R_PPC_GOT_TLSLD16 83 -+#define R_PPC_GOT_TLSLD16_LO 84 -+#define R_PPC_GOT_TLSLD16_HI 85 -+#define R_PPC_GOT_TLSLD16_HA 86 -+#define R_PPC_GOT_TPREL16 87 -+#define R_PPC_GOT_TPREL16_LO 88 -+#define R_PPC_GOT_TPREL16_HI 89 -+#define R_PPC_GOT_TPREL16_HA 90 -+#define R_PPC_GOT_DTPREL16 91 -+#define R_PPC_GOT_DTPREL16_LO 92 -+#define R_PPC_GOT_DTPREL16_HI 93 -+#define R_PPC_GOT_DTPREL16_HA 94 -+ -+ -+ -+#define R_PPC_EMB_NADDR32 101 -+#define R_PPC_EMB_NADDR16 102 -+#define R_PPC_EMB_NADDR16_LO 103 -+#define R_PPC_EMB_NADDR16_HI 104 -+#define R_PPC_EMB_NADDR16_HA 105 -+#define R_PPC_EMB_SDAI16 106 -+#define R_PPC_EMB_SDA2I16 107 -+#define R_PPC_EMB_SDA2REL 108 -+#define R_PPC_EMB_SDA21 109 -+#define R_PPC_EMB_MRKREF 110 -+#define R_PPC_EMB_RELSEC16 111 -+#define R_PPC_EMB_RELST_LO 112 -+#define R_PPC_EMB_RELST_HI 113 -+#define R_PPC_EMB_RELST_HA 114 -+#define R_PPC_EMB_BIT_FLD 115 -+#define R_PPC_EMB_RELSDA 116 -+ -+ -+#define R_PPC_DIAB_SDA21_LO 180 -+#define R_PPC_DIAB_SDA21_HI 181 -+#define R_PPC_DIAB_SDA21_HA 182 -+#define R_PPC_DIAB_RELSDA_LO 183 -+#define R_PPC_DIAB_RELSDA_HI 184 -+#define R_PPC_DIAB_RELSDA_HA 185 -+ -+ -+#define R_PPC_IRELATIVE 248 -+ -+ -+#define R_PPC_REL16 249 -+#define R_PPC_REL16_LO 250 -+#define R_PPC_REL16_HI 251 -+#define R_PPC_REL16_HA 252 -+ -+ -+ -+#define R_PPC_TOC16 255 -+ -+ -+#define DT_PPC_GOT (DT_LOPROC + 0) -+#define DT_PPC_NUM 1 -+ -+ -+#define R_PPC64_NONE R_PPC_NONE -+#define R_PPC64_ADDR32 R_PPC_ADDR32 -+#define R_PPC64_ADDR24 R_PPC_ADDR24 -+#define R_PPC64_ADDR16 R_PPC_ADDR16 -+#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO -+#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI -+#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA -+#define R_PPC64_ADDR14 R_PPC_ADDR14 -+#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN -+#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN -+#define R_PPC64_REL24 R_PPC_REL24 -+#define R_PPC64_REL14 R_PPC_REL14 -+#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN -+#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN -+#define R_PPC64_GOT16 R_PPC_GOT16 -+#define R_PPC64_GOT16_LO R_PPC_GOT16_LO -+#define R_PPC64_GOT16_HI R_PPC_GOT16_HI -+#define R_PPC64_GOT16_HA R_PPC_GOT16_HA -+ -+#define R_PPC64_COPY R_PPC_COPY -+#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT -+#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT -+#define R_PPC64_RELATIVE R_PPC_RELATIVE -+ -+#define R_PPC64_UADDR32 R_PPC_UADDR32 -+#define R_PPC64_UADDR16 R_PPC_UADDR16 -+#define R_PPC64_REL32 R_PPC_REL32 -+#define R_PPC64_PLT32 R_PPC_PLT32 -+#define R_PPC64_PLTREL32 R_PPC_PLTREL32 -+#define R_PPC64_PLT16_LO R_PPC_PLT16_LO -+#define R_PPC64_PLT16_HI R_PPC_PLT16_HI -+#define R_PPC64_PLT16_HA R_PPC_PLT16_HA -+ -+#define R_PPC64_SECTOFF R_PPC_SECTOFF -+#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO -+#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI -+#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA -+#define R_PPC64_ADDR30 37 -+#define R_PPC64_ADDR64 38 -+#define R_PPC64_ADDR16_HIGHER 39 -+#define R_PPC64_ADDR16_HIGHERA 40 -+#define R_PPC64_ADDR16_HIGHEST 41 -+#define R_PPC64_ADDR16_HIGHESTA 42 -+#define R_PPC64_UADDR64 43 -+#define R_PPC64_REL64 44 -+#define R_PPC64_PLT64 45 -+#define R_PPC64_PLTREL64 46 -+#define R_PPC64_TOC16 47 -+#define R_PPC64_TOC16_LO 48 -+#define R_PPC64_TOC16_HI 49 -+#define R_PPC64_TOC16_HA 50 -+#define R_PPC64_TOC 51 -+#define R_PPC64_PLTGOT16 52 -+#define R_PPC64_PLTGOT16_LO 53 -+#define R_PPC64_PLTGOT16_HI 54 -+#define R_PPC64_PLTGOT16_HA 55 -+ -+#define R_PPC64_ADDR16_DS 56 -+#define R_PPC64_ADDR16_LO_DS 57 -+#define R_PPC64_GOT16_DS 58 -+#define R_PPC64_GOT16_LO_DS 59 -+#define R_PPC64_PLT16_LO_DS 60 -+#define R_PPC64_SECTOFF_DS 61 -+#define R_PPC64_SECTOFF_LO_DS 62 -+#define R_PPC64_TOC16_DS 63 -+#define R_PPC64_TOC16_LO_DS 64 -+#define R_PPC64_PLTGOT16_DS 65 -+#define R_PPC64_PLTGOT16_LO_DS 66 -+ -+ -+#define R_PPC64_TLS 67 -+#define R_PPC64_DTPMOD64 68 -+#define R_PPC64_TPREL16 69 -+#define R_PPC64_TPREL16_LO 70 -+#define R_PPC64_TPREL16_HI 71 -+#define R_PPC64_TPREL16_HA 72 -+#define R_PPC64_TPREL64 73 -+#define R_PPC64_DTPREL16 74 -+#define R_PPC64_DTPREL16_LO 75 -+#define R_PPC64_DTPREL16_HI 76 -+#define R_PPC64_DTPREL16_HA 77 -+#define R_PPC64_DTPREL64 78 -+#define R_PPC64_GOT_TLSGD16 79 -+#define R_PPC64_GOT_TLSGD16_LO 80 -+#define R_PPC64_GOT_TLSGD16_HI 81 -+#define R_PPC64_GOT_TLSGD16_HA 82 -+#define R_PPC64_GOT_TLSLD16 83 -+#define R_PPC64_GOT_TLSLD16_LO 84 -+#define R_PPC64_GOT_TLSLD16_HI 85 -+#define R_PPC64_GOT_TLSLD16_HA 86 -+#define R_PPC64_GOT_TPREL16_DS 87 -+#define R_PPC64_GOT_TPREL16_LO_DS 88 -+#define R_PPC64_GOT_TPREL16_HI 89 -+#define R_PPC64_GOT_TPREL16_HA 90 -+#define R_PPC64_GOT_DTPREL16_DS 91 -+#define R_PPC64_GOT_DTPREL16_LO_DS 92 -+#define R_PPC64_GOT_DTPREL16_HI 93 -+#define R_PPC64_GOT_DTPREL16_HA 94 -+#define R_PPC64_TPREL16_DS 95 -+#define R_PPC64_TPREL16_LO_DS 96 -+#define R_PPC64_TPREL16_HIGHER 97 -+#define R_PPC64_TPREL16_HIGHERA 98 -+#define R_PPC64_TPREL16_HIGHEST 99 -+#define R_PPC64_TPREL16_HIGHESTA 100 -+#define R_PPC64_DTPREL16_DS 101 -+#define R_PPC64_DTPREL16_LO_DS 102 -+#define R_PPC64_DTPREL16_HIGHER 103 -+#define R_PPC64_DTPREL16_HIGHERA 104 -+#define R_PPC64_DTPREL16_HIGHEST 105 -+#define R_PPC64_DTPREL16_HIGHESTA 106 -+ -+ -+#define R_PPC64_JMP_IREL 247 -+#define R_PPC64_IRELATIVE 248 -+#define R_PPC64_REL16 249 -+#define R_PPC64_REL16_LO 250 -+#define R_PPC64_REL16_HI 251 -+#define R_PPC64_REL16_HA 252 -+ -+ -+#define DT_PPC64_GLINK (DT_LOPROC + 0) -+#define DT_PPC64_OPD (DT_LOPROC + 1) -+#define DT_PPC64_OPDSZ (DT_LOPROC + 2) -+#define DT_PPC64_NUM 3 -+ -+ -+ -+ -+ -+#define EF_ARM_RELEXEC 0x01 -+#define EF_ARM_HASENTRY 0x02 -+#define EF_ARM_INTERWORK 0x04 -+#define EF_ARM_APCS_26 0x08 -+#define EF_ARM_APCS_FLOAT 0x10 -+#define EF_ARM_PIC 0x20 -+#define EF_ARM_ALIGN8 0x40 -+#define EF_ARM_NEW_ABI 0x80 -+#define EF_ARM_OLD_ABI 0x100 -+#define EF_ARM_SOFT_FLOAT 0x200 -+#define EF_ARM_VFP_FLOAT 0x400 -+#define EF_ARM_MAVERICK_FLOAT 0x800 -+ -+#define EF_ARM_ABI_FLOAT_SOFT 0x200 -+#define EF_ARM_ABI_FLOAT_HARD 0x400 -+ -+ -+#define EF_ARM_SYMSARESORTED 0x04 -+#define EF_ARM_DYNSYMSUSESEGIDX 0x08 -+#define EF_ARM_MAPSYMSFIRST 0x10 -+#define EF_ARM_EABIMASK 0XFF000000 -+ -+ -+#define EF_ARM_BE8 0x00800000 -+#define EF_ARM_LE8 0x00400000 -+ -+#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) -+#define EF_ARM_EABI_UNKNOWN 0x00000000 -+#define EF_ARM_EABI_VER1 0x01000000 -+#define EF_ARM_EABI_VER2 0x02000000 -+#define EF_ARM_EABI_VER3 0x03000000 -+#define EF_ARM_EABI_VER4 0x04000000 -+#define EF_ARM_EABI_VER5 0x05000000 -+ -+ -+#define STT_ARM_TFUNC STT_LOPROC -+#define STT_ARM_16BIT STT_HIPROC -+ -+ -+#define SHF_ARM_ENTRYSECT 0x10000000 -+#define SHF_ARM_COMDEF 0x80000000 -+ -+ -+ -+#define PF_ARM_SB 0x10000000 -+ -+#define PF_ARM_PI 0x20000000 -+#define PF_ARM_ABS 0x40000000 -+ -+ -+#define PT_ARM_EXIDX (PT_LOPROC + 1) -+ -+ -+#define SHT_ARM_EXIDX (SHT_LOPROC + 1) -+#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) -+#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) -+ -+ -+#define R_AARCH64_NONE 0 -+#define R_AARCH64_ABS64 257 -+#define R_AARCH64_ABS32 258 -+#define R_AARCH64_COPY 1024 -+#define R_AARCH64_GLOB_DAT 1025 -+#define R_AARCH64_JUMP_SLOT 1026 -+#define R_AARCH64_RELATIVE 1027 -+#define R_AARCH64_TLS_DTPMOD64 1028 -+#define R_AARCH64_TLS_DTPREL64 1029 -+#define R_AARCH64_TLS_TPREL64 1030 -+#define R_AARCH64_TLSDESC 1031 -+ -+ -+#define R_ARM_NONE 0 -+#define R_ARM_PC24 1 -+#define R_ARM_ABS32 2 -+#define R_ARM_REL32 3 -+#define R_ARM_PC13 4 -+#define R_ARM_ABS16 5 -+#define R_ARM_ABS12 6 -+#define R_ARM_THM_ABS5 7 -+#define R_ARM_ABS8 8 -+#define R_ARM_SBREL32 9 -+#define R_ARM_THM_PC22 10 -+#define R_ARM_THM_PC8 11 -+#define R_ARM_AMP_VCALL9 12 -+#define R_ARM_TLS_DESC 13 -+#define R_ARM_THM_SWI8 14 -+#define R_ARM_XPC25 15 -+#define R_ARM_THM_XPC22 16 -+#define R_ARM_TLS_DTPMOD32 17 -+#define R_ARM_TLS_DTPOFF32 18 -+#define R_ARM_TLS_TPOFF32 19 -+#define R_ARM_COPY 20 -+#define R_ARM_GLOB_DAT 21 -+#define R_ARM_JUMP_SLOT 22 -+#define R_ARM_RELATIVE 23 -+#define R_ARM_GOTOFF 24 -+#define R_ARM_GOTPC 25 -+#define R_ARM_GOT32 26 -+#define R_ARM_PLT32 27 -+#define R_ARM_CALL 28 -+#define R_ARM_JUMP24 29 -+#define R_ARM_THM_JUMP24 30 -+#define R_ARM_BASE_ABS 31 -+#define R_ARM_ALU_PCREL_7_0 32 -+#define R_ARM_ALU_PCREL_15_8 33 -+#define R_ARM_ALU_PCREL_23_15 34 -+#define R_ARM_LDR_SBREL_11_0 35 -+#define R_ARM_ALU_SBREL_19_12 36 -+#define R_ARM_ALU_SBREL_27_20 37 -+#define R_ARM_TARGET1 38 -+#define R_ARM_SBREL31 39 -+#define R_ARM_V4BX 40 -+#define R_ARM_TARGET2 41 -+#define R_ARM_PREL31 42 -+#define R_ARM_MOVW_ABS_NC 43 -+#define R_ARM_MOVT_ABS 44 -+#define R_ARM_MOVW_PREL_NC 45 -+#define R_ARM_MOVT_PREL 46 -+#define R_ARM_THM_MOVW_ABS_NC 47 -+#define R_ARM_THM_MOVT_ABS 48 -+#define R_ARM_THM_MOVW_PREL_NC 49 -+#define R_ARM_THM_MOVT_PREL 50 -+#define R_ARM_THM_JUMP19 51 -+#define R_ARM_THM_JUMP6 52 -+#define R_ARM_THM_ALU_PREL_11_0 53 -+#define R_ARM_THM_PC12 54 -+#define R_ARM_ABS32_NOI 55 -+#define R_ARM_REL32_NOI 56 -+#define R_ARM_ALU_PC_G0_NC 57 -+#define R_ARM_ALU_PC_G0 58 -+#define R_ARM_ALU_PC_G1_NC 59 -+#define R_ARM_ALU_PC_G1 60 -+#define R_ARM_ALU_PC_G2 61 -+#define R_ARM_LDR_PC_G1 62 -+#define R_ARM_LDR_PC_G2 63 -+#define R_ARM_LDRS_PC_G0 64 -+#define R_ARM_LDRS_PC_G1 65 -+#define R_ARM_LDRS_PC_G2 66 -+#define R_ARM_LDC_PC_G0 67 -+#define R_ARM_LDC_PC_G1 68 -+#define R_ARM_LDC_PC_G2 69 -+#define R_ARM_ALU_SB_G0_NC 70 -+#define R_ARM_ALU_SB_G0 71 -+#define R_ARM_ALU_SB_G1_NC 72 -+#define R_ARM_ALU_SB_G1 73 -+#define R_ARM_ALU_SB_G2 74 -+#define R_ARM_LDR_SB_G0 75 -+#define R_ARM_LDR_SB_G1 76 -+#define R_ARM_LDR_SB_G2 77 -+#define R_ARM_LDRS_SB_G0 78 -+#define R_ARM_LDRS_SB_G1 79 -+#define R_ARM_LDRS_SB_G2 80 -+#define R_ARM_LDC_SB_G0 81 -+#define R_ARM_LDC_SB_G1 82 -+#define R_ARM_LDC_SB_G2 83 -+#define R_ARM_MOVW_BREL_NC 84 -+#define R_ARM_MOVT_BREL 85 -+#define R_ARM_MOVW_BREL 86 -+#define R_ARM_THM_MOVW_BREL_NC 87 -+#define R_ARM_THM_MOVT_BREL 88 -+#define R_ARM_THM_MOVW_BREL 89 -+#define R_ARM_TLS_GOTDESC 90 -+#define R_ARM_TLS_CALL 91 -+#define R_ARM_TLS_DESCSEQ 92 -+#define R_ARM_THM_TLS_CALL 93 -+#define R_ARM_PLT32_ABS 94 -+#define R_ARM_GOT_ABS 95 -+#define R_ARM_GOT_PREL 96 -+#define R_ARM_GOT_BREL12 97 -+#define R_ARM_GOTOFF12 98 -+#define R_ARM_GOTRELAX 99 -+#define R_ARM_GNU_VTENTRY 100 -+#define R_ARM_GNU_VTINHERIT 101 -+#define R_ARM_THM_PC11 102 -+#define R_ARM_THM_PC9 103 -+#define R_ARM_TLS_GD32 104 -+ -+#define R_ARM_TLS_LDM32 105 -+ -+#define R_ARM_TLS_LDO32 106 -+ -+#define R_ARM_TLS_IE32 107 -+ -+#define R_ARM_TLS_LE32 108 -+#define R_ARM_TLS_LDO12 109 -+#define R_ARM_TLS_LE12 110 -+#define R_ARM_TLS_IE12GP 111 -+#define R_ARM_ME_TOO 128 -+#define R_ARM_THM_TLS_DESCSEQ 129 -+#define R_ARM_THM_TLS_DESCSEQ16 129 -+#define R_ARM_THM_TLS_DESCSEQ32 130 -+#define R_ARM_THM_GOT_BREL12 131 -+#define R_ARM_IRELATIVE 160 -+#define R_ARM_RXPC25 249 -+#define R_ARM_RSBREL32 250 -+#define R_ARM_THM_RPC22 251 -+#define R_ARM_RREL32 252 -+#define R_ARM_RABS22 253 -+#define R_ARM_RPC24 254 -+#define R_ARM_RBASE 255 -+ -+#define R_ARM_NUM 256 -+ -+ -+ -+ -+#define EF_IA_64_MASKOS 0x0000000f -+#define EF_IA_64_ABI64 0x00000010 -+#define EF_IA_64_ARCH 0xff000000 -+ -+ -+#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) -+#define PT_IA_64_UNWIND (PT_LOPROC + 1) -+#define PT_IA_64_HP_OPT_ANOT (PT_LOOS + 0x12) -+#define PT_IA_64_HP_HSL_ANOT (PT_LOOS + 0x13) -+#define PT_IA_64_HP_STACK (PT_LOOS + 0x14) -+ -+ -+#define PF_IA_64_NORECOV 0x80000000 -+ -+ -+#define SHT_IA_64_EXT (SHT_LOPROC + 0) -+#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) -+ -+ -+#define SHF_IA_64_SHORT 0x10000000 -+#define SHF_IA_64_NORECOV 0x20000000 -+ -+ -+#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) -+#define DT_IA_64_NUM 1 -+ -+ -+#define R_IA64_NONE 0x00 -+#define R_IA64_IMM14 0x21 -+#define R_IA64_IMM22 0x22 -+#define R_IA64_IMM64 0x23 -+#define R_IA64_DIR32MSB 0x24 -+#define R_IA64_DIR32LSB 0x25 -+#define R_IA64_DIR64MSB 0x26 -+#define R_IA64_DIR64LSB 0x27 -+#define R_IA64_GPREL22 0x2a -+#define R_IA64_GPREL64I 0x2b -+#define R_IA64_GPREL32MSB 0x2c -+#define R_IA64_GPREL32LSB 0x2d -+#define R_IA64_GPREL64MSB 0x2e -+#define R_IA64_GPREL64LSB 0x2f -+#define R_IA64_LTOFF22 0x32 -+#define R_IA64_LTOFF64I 0x33 -+#define R_IA64_PLTOFF22 0x3a -+#define R_IA64_PLTOFF64I 0x3b -+#define R_IA64_PLTOFF64MSB 0x3e -+#define R_IA64_PLTOFF64LSB 0x3f -+#define R_IA64_FPTR64I 0x43 -+#define R_IA64_FPTR32MSB 0x44 -+#define R_IA64_FPTR32LSB 0x45 -+#define R_IA64_FPTR64MSB 0x46 -+#define R_IA64_FPTR64LSB 0x47 -+#define R_IA64_PCREL60B 0x48 -+#define R_IA64_PCREL21B 0x49 -+#define R_IA64_PCREL21M 0x4a -+#define R_IA64_PCREL21F 0x4b -+#define R_IA64_PCREL32MSB 0x4c -+#define R_IA64_PCREL32LSB 0x4d -+#define R_IA64_PCREL64MSB 0x4e -+#define R_IA64_PCREL64LSB 0x4f -+#define R_IA64_LTOFF_FPTR22 0x52 -+#define R_IA64_LTOFF_FPTR64I 0x53 -+#define R_IA64_LTOFF_FPTR32MSB 0x54 -+#define R_IA64_LTOFF_FPTR32LSB 0x55 -+#define R_IA64_LTOFF_FPTR64MSB 0x56 -+#define R_IA64_LTOFF_FPTR64LSB 0x57 -+#define R_IA64_SEGREL32MSB 0x5c -+#define R_IA64_SEGREL32LSB 0x5d -+#define R_IA64_SEGREL64MSB 0x5e -+#define R_IA64_SEGREL64LSB 0x5f -+#define R_IA64_SECREL32MSB 0x64 -+#define R_IA64_SECREL32LSB 0x65 -+#define R_IA64_SECREL64MSB 0x66 -+#define R_IA64_SECREL64LSB 0x67 -+#define R_IA64_REL32MSB 0x6c -+#define R_IA64_REL32LSB 0x6d -+#define R_IA64_REL64MSB 0x6e -+#define R_IA64_REL64LSB 0x6f -+#define R_IA64_LTV32MSB 0x74 -+#define R_IA64_LTV32LSB 0x75 -+#define R_IA64_LTV64MSB 0x76 -+#define R_IA64_LTV64LSB 0x77 -+#define R_IA64_PCREL21BI 0x79 -+#define R_IA64_PCREL22 0x7a -+#define R_IA64_PCREL64I 0x7b -+#define R_IA64_IPLTMSB 0x80 -+#define R_IA64_IPLTLSB 0x81 -+#define R_IA64_COPY 0x84 -+#define R_IA64_SUB 0x85 -+#define R_IA64_LTOFF22X 0x86 -+#define R_IA64_LDXMOV 0x87 -+#define R_IA64_TPREL14 0x91 -+#define R_IA64_TPREL22 0x92 -+#define R_IA64_TPREL64I 0x93 -+#define R_IA64_TPREL64MSB 0x96 -+#define R_IA64_TPREL64LSB 0x97 -+#define R_IA64_LTOFF_TPREL22 0x9a -+#define R_IA64_DTPMOD64MSB 0xa6 -+#define R_IA64_DTPMOD64LSB 0xa7 -+#define R_IA64_LTOFF_DTPMOD22 0xaa -+#define R_IA64_DTPREL14 0xb1 -+#define R_IA64_DTPREL22 0xb2 -+#define R_IA64_DTPREL64I 0xb3 -+#define R_IA64_DTPREL32MSB 0xb4 -+#define R_IA64_DTPREL32LSB 0xb5 -+#define R_IA64_DTPREL64MSB 0xb6 -+#define R_IA64_DTPREL64LSB 0xb7 -+#define R_IA64_LTOFF_DTPREL22 0xba -+ -+ -+ -+ -+#define R_SH_NONE 0 -+#define R_SH_DIR32 1 -+#define R_SH_REL32 2 -+#define R_SH_DIR8WPN 3 -+#define R_SH_IND12W 4 -+#define R_SH_DIR8WPL 5 -+#define R_SH_DIR8WPZ 6 -+#define R_SH_DIR8BP 7 -+#define R_SH_DIR8W 8 -+#define R_SH_DIR8L 9 -+#define R_SH_SWITCH16 25 -+#define R_SH_SWITCH32 26 -+#define R_SH_USES 27 -+#define R_SH_COUNT 28 -+#define R_SH_ALIGN 29 -+#define R_SH_CODE 30 -+#define R_SH_DATA 31 -+#define R_SH_LABEL 32 -+#define R_SH_SWITCH8 33 -+#define R_SH_GNU_VTINHERIT 34 -+#define R_SH_GNU_VTENTRY 35 -+#define R_SH_TLS_GD_32 144 -+#define R_SH_TLS_LD_32 145 -+#define R_SH_TLS_LDO_32 146 -+#define R_SH_TLS_IE_32 147 -+#define R_SH_TLS_LE_32 148 -+#define R_SH_TLS_DTPMOD32 149 -+#define R_SH_TLS_DTPOFF32 150 -+#define R_SH_TLS_TPOFF32 151 -+#define R_SH_GOT32 160 -+#define R_SH_PLT32 161 -+#define R_SH_COPY 162 -+#define R_SH_GLOB_DAT 163 -+#define R_SH_JMP_SLOT 164 -+#define R_SH_RELATIVE 165 -+#define R_SH_GOTOFF 166 -+#define R_SH_GOTPC 167 -+ -+#define R_SH_NUM 256 -+ -+ -+ -+#define R_390_NONE 0 -+#define R_390_8 1 -+#define R_390_12 2 -+#define R_390_16 3 -+#define R_390_32 4 -+#define R_390_PC32 5 -+#define R_390_GOT12 6 -+#define R_390_GOT32 7 -+#define R_390_PLT32 8 -+#define R_390_COPY 9 -+#define R_390_GLOB_DAT 10 -+#define R_390_JMP_SLOT 11 -+#define R_390_RELATIVE 12 -+#define R_390_GOTOFF32 13 -+#define R_390_GOTPC 14 -+#define R_390_GOT16 15 -+#define R_390_PC16 16 -+#define R_390_PC16DBL 17 -+#define R_390_PLT16DBL 18 -+#define R_390_PC32DBL 19 -+#define R_390_PLT32DBL 20 -+#define R_390_GOTPCDBL 21 -+#define R_390_64 22 -+#define R_390_PC64 23 -+#define R_390_GOT64 24 -+#define R_390_PLT64 25 -+#define R_390_GOTENT 26 -+#define R_390_GOTOFF16 27 -+#define R_390_GOTOFF64 28 -+#define R_390_GOTPLT12 29 -+#define R_390_GOTPLT16 30 -+#define R_390_GOTPLT32 31 -+#define R_390_GOTPLT64 32 -+#define R_390_GOTPLTENT 33 -+#define R_390_PLTOFF16 34 -+#define R_390_PLTOFF32 35 -+#define R_390_PLTOFF64 36 -+#define R_390_TLS_LOAD 37 -+#define R_390_TLS_GDCALL 38 -+ -+#define R_390_TLS_LDCALL 39 -+ -+#define R_390_TLS_GD32 40 -+ -+#define R_390_TLS_GD64 41 -+ -+#define R_390_TLS_GOTIE12 42 -+ -+#define R_390_TLS_GOTIE32 43 -+ -+#define R_390_TLS_GOTIE64 44 -+ -+#define R_390_TLS_LDM32 45 -+ -+#define R_390_TLS_LDM64 46 -+ -+#define R_390_TLS_IE32 47 -+ -+#define R_390_TLS_IE64 48 -+ -+#define R_390_TLS_IEENT 49 -+ -+#define R_390_TLS_LE32 50 -+ -+#define R_390_TLS_LE64 51 -+ -+#define R_390_TLS_LDO32 52 -+ -+#define R_390_TLS_LDO64 53 -+ -+#define R_390_TLS_DTPMOD 54 -+#define R_390_TLS_DTPOFF 55 -+#define R_390_TLS_TPOFF 56 -+ -+#define R_390_20 57 -+#define R_390_GOT20 58 -+#define R_390_GOTPLT20 59 -+#define R_390_TLS_GOTIE20 60 -+ -+ -+#define R_390_NUM 61 -+ -+ -+ -+#define R_CRIS_NONE 0 -+#define R_CRIS_8 1 -+#define R_CRIS_16 2 -+#define R_CRIS_32 3 -+#define R_CRIS_8_PCREL 4 -+#define R_CRIS_16_PCREL 5 -+#define R_CRIS_32_PCREL 6 -+#define R_CRIS_GNU_VTINHERIT 7 -+#define R_CRIS_GNU_VTENTRY 8 -+#define R_CRIS_COPY 9 -+#define R_CRIS_GLOB_DAT 10 -+#define R_CRIS_JUMP_SLOT 11 -+#define R_CRIS_RELATIVE 12 -+#define R_CRIS_16_GOT 13 -+#define R_CRIS_32_GOT 14 -+#define R_CRIS_16_GOTPLT 15 -+#define R_CRIS_32_GOTPLT 16 -+#define R_CRIS_32_GOTREL 17 -+#define R_CRIS_32_PLT_GOTREL 18 -+#define R_CRIS_32_PLT_PCREL 19 -+ -+#define R_CRIS_NUM 20 -+ -+ -+ -+#define R_X86_64_NONE 0 -+#define R_X86_64_64 1 -+#define R_X86_64_PC32 2 -+#define R_X86_64_GOT32 3 -+#define R_X86_64_PLT32 4 -+#define R_X86_64_COPY 5 -+#define R_X86_64_GLOB_DAT 6 -+#define R_X86_64_JUMP_SLOT 7 -+#define R_X86_64_RELATIVE 8 -+#define R_X86_64_GOTPCREL 9 -+ -+#define R_X86_64_32 10 -+#define R_X86_64_32S 11 -+#define R_X86_64_16 12 -+#define R_X86_64_PC16 13 -+#define R_X86_64_8 14 -+#define R_X86_64_PC8 15 -+#define R_X86_64_DTPMOD64 16 -+#define R_X86_64_DTPOFF64 17 -+#define R_X86_64_TPOFF64 18 -+#define R_X86_64_TLSGD 19 -+ -+#define R_X86_64_TLSLD 20 -+ -+#define R_X86_64_DTPOFF32 21 -+#define R_X86_64_GOTTPOFF 22 -+ -+#define R_X86_64_TPOFF32 23 -+#define R_X86_64_PC64 24 -+#define R_X86_64_GOTOFF64 25 -+#define R_X86_64_GOTPC32 26 -+#define R_X86_64_GOT64 27 -+#define R_X86_64_GOTPCREL64 28 -+#define R_X86_64_GOTPC64 29 -+#define R_X86_64_GOTPLT64 30 -+#define R_X86_64_PLTOFF64 31 -+#define R_X86_64_SIZE32 32 -+#define R_X86_64_SIZE64 33 -+ -+#define R_X86_64_GOTPC32_TLSDESC 34 -+#define R_X86_64_TLSDESC_CALL 35 -+ -+#define R_X86_64_TLSDESC 36 -+#define R_X86_64_IRELATIVE 37 -+#define R_X86_64_RELATIVE64 38 -+#define R_X86_64_NUM 39 -+ -+ -+ -+#define R_MN10300_NONE 0 -+#define R_MN10300_32 1 -+#define R_MN10300_16 2 -+#define R_MN10300_8 3 -+#define R_MN10300_PCREL32 4 -+#define R_MN10300_PCREL16 5 -+#define R_MN10300_PCREL8 6 -+#define R_MN10300_GNU_VTINHERIT 7 -+#define R_MN10300_GNU_VTENTRY 8 -+#define R_MN10300_24 9 -+#define R_MN10300_GOTPC32 10 -+#define R_MN10300_GOTPC16 11 -+#define R_MN10300_GOTOFF32 12 -+#define R_MN10300_GOTOFF24 13 -+#define R_MN10300_GOTOFF16 14 -+#define R_MN10300_PLT32 15 -+#define R_MN10300_PLT16 16 -+#define R_MN10300_GOT32 17 -+#define R_MN10300_GOT24 18 -+#define R_MN10300_GOT16 19 -+#define R_MN10300_COPY 20 -+#define R_MN10300_GLOB_DAT 21 -+#define R_MN10300_JMP_SLOT 22 -+#define R_MN10300_RELATIVE 23 -+ -+#define R_MN10300_NUM 24 -+ -+ -+ -+#define R_M32R_NONE 0 -+#define R_M32R_16 1 -+#define R_M32R_32 2 -+#define R_M32R_24 3 -+#define R_M32R_10_PCREL 4 -+#define R_M32R_18_PCREL 5 -+#define R_M32R_26_PCREL 6 -+#define R_M32R_HI16_ULO 7 -+#define R_M32R_HI16_SLO 8 -+#define R_M32R_LO16 9 -+#define R_M32R_SDA16 10 -+#define R_M32R_GNU_VTINHERIT 11 -+#define R_M32R_GNU_VTENTRY 12 -+ -+#define R_M32R_16_RELA 33 -+#define R_M32R_32_RELA 34 -+#define R_M32R_24_RELA 35 -+#define R_M32R_10_PCREL_RELA 36 -+#define R_M32R_18_PCREL_RELA 37 -+#define R_M32R_26_PCREL_RELA 38 -+#define R_M32R_HI16_ULO_RELA 39 -+#define R_M32R_HI16_SLO_RELA 40 -+#define R_M32R_LO16_RELA 41 -+#define R_M32R_SDA16_RELA 42 -+#define R_M32R_RELA_GNU_VTINHERIT 43 -+#define R_M32R_RELA_GNU_VTENTRY 44 -+#define R_M32R_REL32 45 -+ -+#define R_M32R_GOT24 48 -+#define R_M32R_26_PLTREL 49 -+#define R_M32R_COPY 50 -+#define R_M32R_GLOB_DAT 51 -+#define R_M32R_JMP_SLOT 52 -+#define R_M32R_RELATIVE 53 -+#define R_M32R_GOTOFF 54 -+#define R_M32R_GOTPC24 55 -+#define R_M32R_GOT16_HI_ULO 56 -+ -+#define R_M32R_GOT16_HI_SLO 57 -+ -+#define R_M32R_GOT16_LO 58 -+#define R_M32R_GOTPC_HI_ULO 59 -+ -+#define R_M32R_GOTPC_HI_SLO 60 -+ -+#define R_M32R_GOTPC_LO 61 -+ -+#define R_M32R_GOTOFF_HI_ULO 62 -+ -+#define R_M32R_GOTOFF_HI_SLO 63 -+ -+#define R_M32R_GOTOFF_LO 64 -+#define R_M32R_NUM 256 -+ -+#define R_MICROBLAZE_NONE 0 -+#define R_MICROBLAZE_32 1 -+#define R_MICROBLAZE_32_PCREL 2 -+#define R_MICROBLAZE_64_PCREL 3 -+#define R_MICROBLAZE_32_PCREL_LO 4 -+#define R_MICROBLAZE_64 5 -+#define R_MICROBLAZE_32_LO 6 -+#define R_MICROBLAZE_SRO32 7 -+#define R_MICROBLAZE_SRW32 8 -+#define R_MICROBLAZE_64_NONE 9 -+#define R_MICROBLAZE_32_SYM_OP_SYM 10 -+#define R_MICROBLAZE_GNU_VTINHERIT 11 -+#define R_MICROBLAZE_GNU_VTENTRY 12 -+#define R_MICROBLAZE_GOTPC_64 13 -+#define R_MICROBLAZE_GOT_64 14 -+#define R_MICROBLAZE_PLT_64 15 -+#define R_MICROBLAZE_REL 16 -+#define R_MICROBLAZE_JUMP_SLOT 17 -+#define R_MICROBLAZE_GLOB_DAT 18 -+#define R_MICROBLAZE_GOTOFF_64 19 -+#define R_MICROBLAZE_GOTOFF_32 20 -+#define R_MICROBLAZE_COPY 21 -+#define R_MICROBLAZE_TLS 22 -+#define R_MICROBLAZE_TLSGD 23 -+#define R_MICROBLAZE_TLSLD 24 -+#define R_MICROBLAZE_TLSDTPMOD32 25 -+#define R_MICROBLAZE_TLSDTPREL32 26 -+#define R_MICROBLAZE_TLSDTPREL64 27 -+#define R_MICROBLAZE_TLSGOTTPREL32 28 -+#define R_MICROBLAZE_TLSTPREL32 29 -+ -+#ifdef __cplusplus -+} -+#endif -+ -+ -+#endif diff --git a/target/linux/patches/3.15-rc7/sgidefs.patch b/target/linux/patches/3.15-rc7/sgidefs.patch deleted file mode 100644 index f00a284d9..000000000 --- a/target/linux/patches/3.15-rc7/sgidefs.patch +++ /dev/null @@ -1,18 +0,0 @@ -diff -Nur linux-3.11.5.orig/arch/mips/include/uapi/asm/sgidefs.h linux-3.11.5/arch/mips/include/uapi/asm/sgidefs.h ---- linux-3.11.5.orig/arch/mips/include/uapi/asm/sgidefs.h 2013-10-14 03:14:45.000000000 +0200 -+++ linux-3.11.5/arch/mips/include/uapi/asm/sgidefs.h 2013-11-08 22:01:28.000000000 +0100 -@@ -11,14 +11,6 @@ - #define __ASM_SGIDEFS_H - - /* -- * Using a Linux compiler for building Linux seems logic but not to -- * everybody. -- */ --#ifndef __linux__ --#error Use a Linux compiler or give up. --#endif -- --/* - * Definitions for the ISA levels - * - * With the introduction of MIPS32 / MIPS64 instruction sets definitions diff --git a/target/linux/patches/3.15-rc7/sortext.patch b/target/linux/patches/3.15-rc7/sortext.patch deleted file mode 100644 index 8fd4e1d6b..000000000 --- a/target/linux/patches/3.15-rc7/sortext.patch +++ /dev/null @@ -1,33 +0,0 @@ -diff -Nur linux-3.12.6.orig/arch/arm/Kconfig linux-3.12.6/arch/arm/Kconfig ---- linux-3.12.6.orig/arch/arm/Kconfig 2013-12-20 16:51:33.000000000 +0100 -+++ linux-3.12.6/arch/arm/Kconfig 2013-12-28 19:29:33.000000000 +0100 -@@ -6,7 +6,6 @@ - select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST - select ARCH_HAVE_CUSTOM_GPIO_H - select ARCH_WANT_IPC_PARSE_VERSION -- select BUILDTIME_EXTABLE_SORT if MMU - select CLONE_BACKWARDS - select CPU_PM if (SUSPEND || CPU_IDLE) - select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU -diff -Nur linux-3.12.6.orig/arch/mips/Kconfig linux-3.12.6/arch/mips/Kconfig ---- linux-3.12.6.orig/arch/mips/Kconfig 2013-12-20 16:51:33.000000000 +0100 -+++ linux-3.12.6/arch/mips/Kconfig 2013-12-28 19:30:06.000000000 +0100 -@@ -35,7 +35,6 @@ - select HAVE_MEMBLOCK_NODE_MAP - select ARCH_DISCARD_MEMBLOCK - select GENERIC_SMP_IDLE_THREAD -- select BUILDTIME_EXTABLE_SORT - select GENERIC_CLOCKEVENTS - select GENERIC_CMOS_UPDATE - select HAVE_MOD_ARCH_SPECIFIC -diff -Nur linux-3.12.6.orig/arch/x86/Kconfig linux-3.12.6/arch/x86/Kconfig ---- linux-3.12.6.orig/arch/x86/Kconfig 2013-12-20 16:51:33.000000000 +0100 -+++ linux-3.12.6/arch/x86/Kconfig 2013-12-28 19:29:50.000000000 +0100 -@@ -100,7 +100,6 @@ - select GENERIC_SMP_IDLE_THREAD - select ARCH_WANT_IPC_PARSE_VERSION if X86_32 - select HAVE_ARCH_SECCOMP_FILTER -- select BUILDTIME_EXTABLE_SORT - select GENERIC_CMOS_UPDATE - select HAVE_ARCH_SOFT_DIRTY - select CLOCKSOURCE_WATCHDOG diff --git a/target/linux/patches/3.15-rc7/startup.patch b/target/linux/patches/3.15-rc7/startup.patch deleted file mode 100644 index d396b75e4..000000000 --- a/target/linux/patches/3.15-rc7/startup.patch +++ /dev/null @@ -1,37 +0,0 @@ -diff -Nur linux-3.13.3.orig/init/main.c linux-3.13.3/init/main.c ---- linux-3.13.3.orig/init/main.c 2014-02-13 23:00:14.000000000 +0100 -+++ linux-3.13.3/init/main.c 2014-02-17 11:35:14.000000000 +0100 -@@ -916,6 +917,8 @@ - if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) - pr_err("Warning: unable to open an initial console.\n"); - -+ printk(KERN_WARNING "Starting Linux (built with OpenADK).\n"); -+ - (void) sys_dup(0); - (void) sys_dup(0); - /* -diff -Nur linux-3.13.6.orig/init/initramfs.c linux-3.13.6/init/initramfs.c ---- linux-3.13.6.orig/init/initramfs.c 2014-03-07 07:07:02.000000000 +0100 -+++ linux-3.13.6/init/initramfs.c 2014-03-15 12:11:31.882731916 +0100 -@@ -622,6 +622,9 @@ - */ - load_default_modules(); - } -+#ifdef CONFIG_DEVTMPFS_MOUNT -+ devtmpfs_mount("dev"); -+#endif - return 0; - } - rootfs_initcall(populate_rootfs); -diff -Nur linux-3.13.6.orig/init/main.c linux-3.13.6/init/main.c ---- linux-3.13.6.orig/init/main.c 2014-03-07 07:07:02.000000000 +0100 -+++ linux-3.13.6/init/main.c 2014-03-15 12:13:16.459024452 +0100 -@@ -924,7 +924,7 @@ - */ - - if (!ramdisk_execute_command) -- ramdisk_execute_command = "/init"; -+ ramdisk_execute_command = "/sbin/init"; - - if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { - ramdisk_execute_command = NULL; diff --git a/target/linux/patches/3.15-rc7/tcp-fastopen.patch b/target/linux/patches/3.15-rc7/tcp-fastopen.patch deleted file mode 100644 index fc1d076ac..000000000 --- a/target/linux/patches/3.15-rc7/tcp-fastopen.patch +++ /dev/null @@ -1,2082 +0,0 @@ -diff -Nur linux-3.15-rc7.orig/include/linux/tcp.h linux-3.15-rc7/include/linux/tcp.h ---- linux-3.15-rc7.orig/include/linux/tcp.h 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/include/linux/tcp.h 2014-05-31 22:42:49.024605293 +0200 -@@ -359,6 +359,9 @@ - return (struct tcp_timewait_sock *)sk; - } - -+extern void tcp_sock_destruct(struct sock *sk); -+ -+#ifdef CONFIG_TCP_FASTOPEN - static inline bool tcp_passive_fastopen(const struct sock *sk) - { - return (sk->sk_state == TCP_SYN_RECV && -@@ -370,8 +373,6 @@ - return foc->len != -1; - } - --extern void tcp_sock_destruct(struct sock *sk); -- - static inline int fastopen_init_queue(struct sock *sk, int backlog) - { - struct request_sock_queue *queue = -@@ -391,4 +392,13 @@ - return 0; - } - -+#else -+static inline bool tcp_passive_fastopen(const struct sock *sk) -+{ return false; } -+static inline bool fastopen_cookie_present(struct tcp_fastopen_cookie *foc) -+{ return false; } -+static inline int fastopen_init_queue(struct sock *sk, int backlog) -+{ return 0; } -+#endif -+ - #endif /* _LINUX_TCP_H */ -diff -Nur linux-3.15-rc7.orig/include/net/request_sock.h linux-3.15-rc7/include/net/request_sock.h ---- linux-3.15-rc7.orig/include/net/request_sock.h 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/include/net/request_sock.h 2014-05-31 22:42:49.024605293 +0200 -@@ -168,8 +168,13 @@ - - void __reqsk_queue_destroy(struct request_sock_queue *queue); - void reqsk_queue_destroy(struct request_sock_queue *queue); -+#ifdef CONFIG_TCP_FASTOPEN - void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, - bool reset); -+#else -+static inline void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, -+ bool reset) {} -+#endif - - static inline struct request_sock * - reqsk_queue_yank_acceptq(struct request_sock_queue *queue) -diff -Nur linux-3.15-rc7.orig/include/net/tcp.h linux-3.15-rc7/include/net/tcp.h ---- linux-3.15-rc7.orig/include/net/tcp.h 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/include/net/tcp.h 2014-05-31 22:42:49.028605326 +0200 -@@ -251,7 +251,11 @@ - extern int sysctl_tcp_retries2; - extern int sysctl_tcp_orphan_retries; - extern int sysctl_tcp_syncookies; -+#ifdef CONFIG_TCP_FASTOPEN - extern int sysctl_tcp_fastopen; -+#else -+#define sysctl_tcp_fastopen 0 -+#endif - extern int sysctl_tcp_retrans_collapse; - extern int sysctl_tcp_stdurg; - extern int sysctl_tcp_rfc1337; -@@ -1308,7 +1312,12 @@ - size_t size; - int copied; /* queued in tcp_connect() */ - }; -+ -+#ifdef CONFIG_TCP_FASTOPEN - void tcp_free_fastopen_req(struct tcp_sock *tp); -+#else -+static inline void tcp_free_fastopen_req(struct tcp_sock *tp) {} -+#endif - - extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; - int tcp_fastopen_reset_cipher(void *key, unsigned int len); -diff -Nur linux-3.15-rc7.orig/include/net/tcp.h.orig linux-3.15-rc7/include/net/tcp.h.orig ---- linux-3.15-rc7.orig/include/net/tcp.h.orig 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc7/include/net/tcp.h.orig 2014-05-26 01:06:00.000000000 +0200 -@@ -0,0 +1,1600 @@ -+/* -+ * INET An implementation of the TCP/IP protocol suite for the LINUX -+ * operating system. INET is implemented using the BSD Socket -+ * interface as the means of communication with the user level. -+ * -+ * Definitions for the TCP module. -+ * -+ * Version: @(#)tcp.h 1.0.5 05/23/93 -+ * -+ * Authors: Ross Biro -+ * Fred N. van Kempen, -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ */ -+#ifndef _TCP_H -+#define _TCP_H -+ -+#define FASTRETRANS_DEBUG 1 -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+extern struct inet_hashinfo tcp_hashinfo; -+ -+extern struct percpu_counter tcp_orphan_count; -+void tcp_time_wait(struct sock *sk, int state, int timeo); -+ -+#define MAX_TCP_HEADER (128 + MAX_HEADER) -+#define MAX_TCP_OPTION_SPACE 40 -+ -+/* -+ * Never offer a window over 32767 without using window scaling. Some -+ * poor stacks do signed 16bit maths! -+ */ -+#define MAX_TCP_WINDOW 32767U -+ -+/* Minimal accepted MSS. It is (60+60+8) - (20+20). */ -+#define TCP_MIN_MSS 88U -+ -+/* The least MTU to use for probing */ -+#define TCP_BASE_MSS 512 -+ -+/* After receiving this amount of duplicate ACKs fast retransmit starts. */ -+#define TCP_FASTRETRANS_THRESH 3 -+ -+/* Maximal reordering. */ -+#define TCP_MAX_REORDERING 127 -+ -+/* Maximal number of ACKs sent quickly to accelerate slow-start. */ -+#define TCP_MAX_QUICKACKS 16U -+ -+/* urg_data states */ -+#define TCP_URG_VALID 0x0100 -+#define TCP_URG_NOTYET 0x0200 -+#define TCP_URG_READ 0x0400 -+ -+#define TCP_RETR1 3 /* -+ * This is how many retries it does before it -+ * tries to figure out if the gateway is -+ * down. Minimal RFC value is 3; it corresponds -+ * to ~3sec-8min depending on RTO. -+ */ -+ -+#define TCP_RETR2 15 /* -+ * This should take at least -+ * 90 minutes to time out. -+ * RFC1122 says that the limit is 100 sec. -+ * 15 is ~13-30min depending on RTO. -+ */ -+ -+#define TCP_SYN_RETRIES 6 /* This is how many retries are done -+ * when active opening a connection. -+ * RFC1122 says the minimum retry MUST -+ * be at least 180secs. Nevertheless -+ * this value is corresponding to -+ * 63secs of retransmission with the -+ * current initial RTO. -+ */ -+ -+#define TCP_SYNACK_RETRIES 5 /* This is how may retries are done -+ * when passive opening a connection. -+ * This is corresponding to 31secs of -+ * retransmission with the current -+ * initial RTO. -+ */ -+ -+#define TCP_TIMEWAIT_LEN (60*HZ) /* how long to wait to destroy TIME-WAIT -+ * state, about 60 seconds */ -+#define TCP_FIN_TIMEOUT TCP_TIMEWAIT_LEN -+ /* BSD style FIN_WAIT2 deadlock breaker. -+ * It used to be 3min, new value is 60sec, -+ * to combine FIN-WAIT-2 timeout with -+ * TIME-WAIT timer. -+ */ -+ -+#define TCP_DELACK_MAX ((unsigned)(HZ/5)) /* maximal time to delay before sending an ACK */ -+#if HZ >= 100 -+#define TCP_DELACK_MIN ((unsigned)(HZ/25)) /* minimal time to delay before sending an ACK */ -+#define TCP_ATO_MIN ((unsigned)(HZ/25)) -+#else -+#define TCP_DELACK_MIN 4U -+#define TCP_ATO_MIN 4U -+#endif -+#define TCP_RTO_MAX ((unsigned)(120*HZ)) -+#define TCP_RTO_MIN ((unsigned)(HZ/5)) -+#define TCP_TIMEOUT_INIT ((unsigned)(1*HZ)) /* RFC6298 2.1 initial RTO value */ -+#define TCP_TIMEOUT_FALLBACK ((unsigned)(3*HZ)) /* RFC 1122 initial RTO value, now -+ * used as a fallback RTO for the -+ * initial data transmission if no -+ * valid RTT sample has been acquired, -+ * most likely due to retrans in 3WHS. -+ */ -+ -+#define TCP_RESOURCE_PROBE_INTERVAL ((unsigned)(HZ/2U)) /* Maximal interval between probes -+ * for local resources. -+ */ -+ -+#define TCP_KEEPALIVE_TIME (120*60*HZ) /* two hours */ -+#define TCP_KEEPALIVE_PROBES 9 /* Max of 9 keepalive probes */ -+#define TCP_KEEPALIVE_INTVL (75*HZ) -+ -+#define MAX_TCP_KEEPIDLE 32767 -+#define MAX_TCP_KEEPINTVL 32767 -+#define MAX_TCP_KEEPCNT 127 -+#define MAX_TCP_SYNCNT 127 -+ -+#define TCP_SYNQ_INTERVAL (HZ/5) /* Period of SYNACK timer */ -+ -+#define TCP_PAWS_24DAYS (60 * 60 * 24 * 24) -+#define TCP_PAWS_MSL 60 /* Per-host timestamps are invalidated -+ * after this time. It should be equal -+ * (or greater than) TCP_TIMEWAIT_LEN -+ * to provide reliability equal to one -+ * provided by timewait state. -+ */ -+#define TCP_PAWS_WINDOW 1 /* Replay window for per-host -+ * timestamps. It must be less than -+ * minimal timewait lifetime. -+ */ -+/* -+ * TCP option -+ */ -+ -+#define TCPOPT_NOP 1 /* Padding */ -+#define TCPOPT_EOL 0 /* End of options */ -+#define TCPOPT_MSS 2 /* Segment size negotiating */ -+#define TCPOPT_WINDOW 3 /* Window scaling */ -+#define TCPOPT_SACK_PERM 4 /* SACK Permitted */ -+#define TCPOPT_SACK 5 /* SACK Block */ -+#define TCPOPT_TIMESTAMP 8 /* Better RTT estimations/PAWS */ -+#define TCPOPT_MD5SIG 19 /* MD5 Signature (RFC2385) */ -+#define TCPOPT_EXP 254 /* Experimental */ -+/* Magic number to be after the option value for sharing TCP -+ * experimental options. See draft-ietf-tcpm-experimental-options-00.txt -+ */ -+#define TCPOPT_FASTOPEN_MAGIC 0xF989 -+ -+/* -+ * TCP option lengths -+ */ -+ -+#define TCPOLEN_MSS 4 -+#define TCPOLEN_WINDOW 3 -+#define TCPOLEN_SACK_PERM 2 -+#define TCPOLEN_TIMESTAMP 10 -+#define TCPOLEN_MD5SIG 18 -+#define TCPOLEN_EXP_FASTOPEN_BASE 4 -+ -+/* But this is what stacks really send out. */ -+#define TCPOLEN_TSTAMP_ALIGNED 12 -+#define TCPOLEN_WSCALE_ALIGNED 4 -+#define TCPOLEN_SACKPERM_ALIGNED 4 -+#define TCPOLEN_SACK_BASE 2 -+#define TCPOLEN_SACK_BASE_ALIGNED 4 -+#define TCPOLEN_SACK_PERBLOCK 8 -+#define TCPOLEN_MD5SIG_ALIGNED 20 -+#define TCPOLEN_MSS_ALIGNED 4 -+ -+/* Flags in tp->nonagle */ -+#define TCP_NAGLE_OFF 1 /* Nagle's algo is disabled */ -+#define TCP_NAGLE_CORK 2 /* Socket is corked */ -+#define TCP_NAGLE_PUSH 4 /* Cork is overridden for already queued data */ -+ -+/* TCP thin-stream limits */ -+#define TCP_THIN_LINEAR_RETRIES 6 /* After 6 linear retries, do exp. backoff */ -+ -+/* TCP initial congestion window as per draft-hkchu-tcpm-initcwnd-01 */ -+#define TCP_INIT_CWND 10 -+ -+/* Bit Flags for sysctl_tcp_fastopen */ -+#define TFO_CLIENT_ENABLE 1 -+#define TFO_SERVER_ENABLE 2 -+#define TFO_CLIENT_NO_COOKIE 4 /* Data in SYN w/o cookie option */ -+ -+/* Process SYN data but skip cookie validation */ -+#define TFO_SERVER_COOKIE_NOT_CHKED 0x100 -+/* Accept SYN data w/o any cookie option */ -+#define TFO_SERVER_COOKIE_NOT_REQD 0x200 -+ -+/* Force enable TFO on all listeners, i.e., not requiring the -+ * TCP_FASTOPEN socket option. SOCKOPT1/2 determine how to set max_qlen. -+ */ -+#define TFO_SERVER_WO_SOCKOPT1 0x400 -+#define TFO_SERVER_WO_SOCKOPT2 0x800 -+/* Always create TFO child sockets on a TFO listener even when -+ * cookie/data not present. (For testing purpose!) -+ */ -+#define TFO_SERVER_ALWAYS 0x1000 -+ -+extern struct inet_timewait_death_row tcp_death_row; -+ -+/* sysctl variables for tcp */ -+extern int sysctl_tcp_timestamps; -+extern int sysctl_tcp_window_scaling; -+extern int sysctl_tcp_sack; -+extern int sysctl_tcp_fin_timeout; -+extern int sysctl_tcp_keepalive_time; -+extern int sysctl_tcp_keepalive_probes; -+extern int sysctl_tcp_keepalive_intvl; -+extern int sysctl_tcp_syn_retries; -+extern int sysctl_tcp_synack_retries; -+extern int sysctl_tcp_retries1; -+extern int sysctl_tcp_retries2; -+extern int sysctl_tcp_orphan_retries; -+extern int sysctl_tcp_syncookies; -+extern int sysctl_tcp_fastopen; -+extern int sysctl_tcp_retrans_collapse; -+extern int sysctl_tcp_stdurg; -+extern int sysctl_tcp_rfc1337; -+extern int sysctl_tcp_abort_on_overflow; -+extern int sysctl_tcp_max_orphans; -+extern int sysctl_tcp_fack; -+extern int sysctl_tcp_reordering; -+extern int sysctl_tcp_dsack; -+extern long sysctl_tcp_mem[3]; -+extern int sysctl_tcp_wmem[3]; -+extern int sysctl_tcp_rmem[3]; -+extern int sysctl_tcp_app_win; -+extern int sysctl_tcp_adv_win_scale; -+extern int sysctl_tcp_tw_reuse; -+extern int sysctl_tcp_frto; -+extern int sysctl_tcp_low_latency; -+extern int sysctl_tcp_dma_copybreak; -+extern int sysctl_tcp_nometrics_save; -+extern int sysctl_tcp_moderate_rcvbuf; -+extern int sysctl_tcp_tso_win_divisor; -+extern int sysctl_tcp_mtu_probing; -+extern int sysctl_tcp_base_mss; -+extern int sysctl_tcp_workaround_signed_windows; -+extern int sysctl_tcp_slow_start_after_idle; -+extern int sysctl_tcp_thin_linear_timeouts; -+extern int sysctl_tcp_thin_dupack; -+extern int sysctl_tcp_early_retrans; -+extern int sysctl_tcp_limit_output_bytes; -+extern int sysctl_tcp_challenge_ack_limit; -+extern unsigned int sysctl_tcp_notsent_lowat; -+extern int sysctl_tcp_min_tso_segs; -+extern int sysctl_tcp_autocorking; -+ -+extern atomic_long_t tcp_memory_allocated; -+extern struct percpu_counter tcp_sockets_allocated; -+extern int tcp_memory_pressure; -+ -+/* -+ * The next routines deal with comparing 32 bit unsigned ints -+ * and worry about wraparound (automatic with unsigned arithmetic). -+ */ -+ -+static inline bool before(__u32 seq1, __u32 seq2) -+{ -+ return (__s32)(seq1-seq2) < 0; -+} -+#define after(seq2, seq1) before(seq1, seq2) -+ -+/* is s2<=s1<=s3 ? */ -+static inline bool between(__u32 seq1, __u32 seq2, __u32 seq3) -+{ -+ return seq3 - seq2 >= seq1 - seq2; -+} -+ -+static inline bool tcp_out_of_memory(struct sock *sk) -+{ -+ if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && -+ sk_memory_allocated(sk) > sk_prot_mem_limits(sk, 2)) -+ return true; -+ return false; -+} -+ -+static inline bool tcp_too_many_orphans(struct sock *sk, int shift) -+{ -+ struct percpu_counter *ocp = sk->sk_prot->orphan_count; -+ int orphans = percpu_counter_read_positive(ocp); -+ -+ if (orphans << shift > sysctl_tcp_max_orphans) { -+ orphans = percpu_counter_sum_positive(ocp); -+ if (orphans << shift > sysctl_tcp_max_orphans) -+ return true; -+ } -+ return false; -+} -+ -+bool tcp_check_oom(struct sock *sk, int shift); -+ -+/* syncookies: remember time of last synqueue overflow */ -+static inline void tcp_synq_overflow(struct sock *sk) -+{ -+ tcp_sk(sk)->rx_opt.ts_recent_stamp = jiffies; -+} -+ -+/* syncookies: no recent synqueue overflow on this listening socket? */ -+static inline bool tcp_synq_no_recent_overflow(const struct sock *sk) -+{ -+ unsigned long last_overflow = tcp_sk(sk)->rx_opt.ts_recent_stamp; -+ return time_after(jiffies, last_overflow + TCP_TIMEOUT_FALLBACK); -+} -+ -+extern struct proto tcp_prot; -+ -+#define TCP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.tcp_statistics, field) -+#define TCP_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.tcp_statistics, field) -+#define TCP_DEC_STATS(net, field) SNMP_DEC_STATS((net)->mib.tcp_statistics, field) -+#define TCP_ADD_STATS_USER(net, field, val) SNMP_ADD_STATS_USER((net)->mib.tcp_statistics, field, val) -+#define TCP_ADD_STATS(net, field, val) SNMP_ADD_STATS((net)->mib.tcp_statistics, field, val) -+ -+void tcp_tasklet_init(void); -+ -+void tcp_v4_err(struct sk_buff *skb, u32); -+ -+void tcp_shutdown(struct sock *sk, int how); -+ -+void tcp_v4_early_demux(struct sk_buff *skb); -+int tcp_v4_rcv(struct sk_buff *skb); -+ -+int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw); -+int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, -+ size_t size); -+int tcp_sendpage(struct sock *sk, struct page *page, int offset, size_t size, -+ int flags); -+void tcp_release_cb(struct sock *sk); -+void tcp_wfree(struct sk_buff *skb); -+void tcp_write_timer_handler(struct sock *sk); -+void tcp_delack_timer_handler(struct sock *sk); -+int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg); -+int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, -+ const struct tcphdr *th, unsigned int len); -+void tcp_rcv_established(struct sock *sk, struct sk_buff *skb, -+ const struct tcphdr *th, unsigned int len); -+void tcp_rcv_space_adjust(struct sock *sk); -+void tcp_cleanup_rbuf(struct sock *sk, int copied); -+int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp); -+void tcp_twsk_destructor(struct sock *sk); -+ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos, -+ struct pipe_inode_info *pipe, size_t len, -+ unsigned int flags); -+ -+static inline void tcp_dec_quickack_mode(struct sock *sk, -+ const unsigned int pkts) -+{ -+ struct inet_connection_sock *icsk = inet_csk(sk); -+ -+ if (icsk->icsk_ack.quick) { -+ if (pkts >= icsk->icsk_ack.quick) { -+ icsk->icsk_ack.quick = 0; -+ /* Leaving quickack mode we deflate ATO. */ -+ icsk->icsk_ack.ato = TCP_ATO_MIN; -+ } else -+ icsk->icsk_ack.quick -= pkts; -+ } -+} -+ -+#define TCP_ECN_OK 1 -+#define TCP_ECN_QUEUE_CWR 2 -+#define TCP_ECN_DEMAND_CWR 4 -+#define TCP_ECN_SEEN 8 -+ -+enum tcp_tw_status { -+ TCP_TW_SUCCESS = 0, -+ TCP_TW_RST = 1, -+ TCP_TW_ACK = 2, -+ TCP_TW_SYN = 3 -+}; -+ -+ -+enum tcp_tw_status tcp_timewait_state_process(struct inet_timewait_sock *tw, -+ struct sk_buff *skb, -+ const struct tcphdr *th); -+struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb, -+ struct request_sock *req, struct request_sock **prev, -+ bool fastopen); -+int tcp_child_process(struct sock *parent, struct sock *child, -+ struct sk_buff *skb); -+void tcp_enter_loss(struct sock *sk, int how); -+void tcp_clear_retrans(struct tcp_sock *tp); -+void tcp_update_metrics(struct sock *sk); -+void tcp_init_metrics(struct sock *sk); -+void tcp_metrics_init(void); -+bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst, -+ bool paws_check); -+bool tcp_remember_stamp(struct sock *sk); -+bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw); -+void tcp_fetch_timewait_stamp(struct sock *sk, struct dst_entry *dst); -+void tcp_disable_fack(struct tcp_sock *tp); -+void tcp_close(struct sock *sk, long timeout); -+void tcp_init_sock(struct sock *sk); -+unsigned int tcp_poll(struct file *file, struct socket *sock, -+ struct poll_table_struct *wait); -+int tcp_getsockopt(struct sock *sk, int level, int optname, -+ char __user *optval, int __user *optlen); -+int tcp_setsockopt(struct sock *sk, int level, int optname, -+ char __user *optval, unsigned int optlen); -+int compat_tcp_getsockopt(struct sock *sk, int level, int optname, -+ char __user *optval, int __user *optlen); -+int compat_tcp_setsockopt(struct sock *sk, int level, int optname, -+ char __user *optval, unsigned int optlen); -+void tcp_set_keepalive(struct sock *sk, int val); -+void tcp_syn_ack_timeout(struct sock *sk, struct request_sock *req); -+int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, -+ size_t len, int nonblock, int flags, int *addr_len); -+void tcp_parse_options(const struct sk_buff *skb, -+ struct tcp_options_received *opt_rx, -+ int estab, struct tcp_fastopen_cookie *foc); -+const u8 *tcp_parse_md5sig_option(const struct tcphdr *th); -+ -+/* -+ * TCP v4 functions exported for the inet6 API -+ */ -+ -+void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb); -+int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb); -+struct sock *tcp_create_openreq_child(struct sock *sk, -+ struct request_sock *req, -+ struct sk_buff *skb); -+struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, -+ struct request_sock *req, -+ struct dst_entry *dst); -+int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb); -+int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); -+int tcp_connect(struct sock *sk); -+struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, -+ struct request_sock *req, -+ struct tcp_fastopen_cookie *foc); -+int tcp_disconnect(struct sock *sk, int flags); -+ -+void tcp_finish_connect(struct sock *sk, struct sk_buff *skb); -+int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size); -+void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb); -+ -+/* From syncookies.c */ -+int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th, -+ u32 cookie); -+struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, -+ struct ip_options *opt); -+#ifdef CONFIG_SYN_COOKIES -+ -+/* Syncookies use a monotonic timer which increments every 60 seconds. -+ * This counter is used both as a hash input and partially encoded into -+ * the cookie value. A cookie is only validated further if the delta -+ * between the current counter value and the encoded one is less than this, -+ * i.e. a sent cookie is valid only at most for 2*60 seconds (or less if -+ * the counter advances immediately after a cookie is generated). -+ */ -+#define MAX_SYNCOOKIE_AGE 2 -+ -+static inline u32 tcp_cookie_time(void) -+{ -+ u64 val = get_jiffies_64(); -+ -+ do_div(val, 60 * HZ); -+ return val; -+} -+ -+u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th, -+ u16 *mssp); -+__u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mss); -+#else -+static inline __u32 cookie_v4_init_sequence(struct sock *sk, -+ struct sk_buff *skb, -+ __u16 *mss) -+{ -+ return 0; -+} -+#endif -+ -+__u32 cookie_init_timestamp(struct request_sock *req); -+bool cookie_check_timestamp(struct tcp_options_received *opt, struct net *net, -+ bool *ecn_ok); -+ -+/* From net/ipv6/syncookies.c */ -+int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th, -+ u32 cookie); -+struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb); -+#ifdef CONFIG_SYN_COOKIES -+u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph, -+ const struct tcphdr *th, u16 *mssp); -+__u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb, -+ __u16 *mss); -+#else -+static inline __u32 cookie_v6_init_sequence(struct sock *sk, -+ struct sk_buff *skb, -+ __u16 *mss) -+{ -+ return 0; -+} -+#endif -+/* tcp_output.c */ -+ -+void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss, -+ int nonagle); -+bool tcp_may_send_now(struct sock *sk); -+int __tcp_retransmit_skb(struct sock *, struct sk_buff *); -+int tcp_retransmit_skb(struct sock *, struct sk_buff *); -+void tcp_retransmit_timer(struct sock *sk); -+void tcp_xmit_retransmit_queue(struct sock *); -+void tcp_simple_retransmit(struct sock *); -+int tcp_trim_head(struct sock *, struct sk_buff *, u32); -+int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int); -+ -+void tcp_send_probe0(struct sock *); -+void tcp_send_partial(struct sock *); -+int tcp_write_wakeup(struct sock *); -+void tcp_send_fin(struct sock *sk); -+void tcp_send_active_reset(struct sock *sk, gfp_t priority); -+int tcp_send_synack(struct sock *); -+bool tcp_syn_flood_action(struct sock *sk, const struct sk_buff *skb, -+ const char *proto); -+void tcp_push_one(struct sock *, unsigned int mss_now); -+void tcp_send_ack(struct sock *sk); -+void tcp_send_delayed_ack(struct sock *sk); -+void tcp_send_loss_probe(struct sock *sk); -+bool tcp_schedule_loss_probe(struct sock *sk); -+ -+/* tcp_input.c */ -+void tcp_cwnd_application_limited(struct sock *sk); -+void tcp_resume_early_retransmit(struct sock *sk); -+void tcp_rearm_rto(struct sock *sk); -+void tcp_reset(struct sock *sk); -+ -+/* tcp_timer.c */ -+void tcp_init_xmit_timers(struct sock *); -+static inline void tcp_clear_xmit_timers(struct sock *sk) -+{ -+ inet_csk_clear_xmit_timers(sk); -+} -+ -+unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu); -+unsigned int tcp_current_mss(struct sock *sk); -+ -+/* Bound MSS / TSO packet size with the half of the window */ -+static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize) -+{ -+ int cutoff; -+ -+ /* When peer uses tiny windows, there is no use in packetizing -+ * to sub-MSS pieces for the sake of SWS or making sure there -+ * are enough packets in the pipe for fast recovery. -+ * -+ * On the other hand, for extremely large MSS devices, handling -+ * smaller than MSS windows in this way does make sense. -+ */ -+ if (tp->max_window >= 512) -+ cutoff = (tp->max_window >> 1); -+ else -+ cutoff = tp->max_window; -+ -+ if (cutoff && pktsize > cutoff) -+ return max_t(int, cutoff, 68U - tp->tcp_header_len); -+ else -+ return pktsize; -+} -+ -+/* tcp.c */ -+void tcp_get_info(const struct sock *, struct tcp_info *); -+ -+/* Read 'sendfile()'-style from a TCP socket */ -+typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *, -+ unsigned int, size_t); -+int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, -+ sk_read_actor_t recv_actor); -+ -+void tcp_initialize_rcv_mss(struct sock *sk); -+ -+int tcp_mtu_to_mss(struct sock *sk, int pmtu); -+int tcp_mss_to_mtu(struct sock *sk, int mss); -+void tcp_mtup_init(struct sock *sk); -+void tcp_init_buffer_space(struct sock *sk); -+ -+static inline void tcp_bound_rto(const struct sock *sk) -+{ -+ if (inet_csk(sk)->icsk_rto > TCP_RTO_MAX) -+ inet_csk(sk)->icsk_rto = TCP_RTO_MAX; -+} -+ -+static inline u32 __tcp_set_rto(const struct tcp_sock *tp) -+{ -+ return usecs_to_jiffies((tp->srtt_us >> 3) + tp->rttvar_us); -+} -+ -+static inline void __tcp_fast_path_on(struct tcp_sock *tp, u32 snd_wnd) -+{ -+ tp->pred_flags = htonl((tp->tcp_header_len << 26) | -+ ntohl(TCP_FLAG_ACK) | -+ snd_wnd); -+} -+ -+static inline void tcp_fast_path_on(struct tcp_sock *tp) -+{ -+ __tcp_fast_path_on(tp, tp->snd_wnd >> tp->rx_opt.snd_wscale); -+} -+ -+static inline void tcp_fast_path_check(struct sock *sk) -+{ -+ struct tcp_sock *tp = tcp_sk(sk); -+ -+ if (skb_queue_empty(&tp->out_of_order_queue) && -+ tp->rcv_wnd && -+ atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf && -+ !tp->urg_data) -+ tcp_fast_path_on(tp); -+} -+ -+/* Compute the actual rto_min value */ -+static inline u32 tcp_rto_min(struct sock *sk) -+{ -+ const struct dst_entry *dst = __sk_dst_get(sk); -+ u32 rto_min = TCP_RTO_MIN; -+ -+ if (dst && dst_metric_locked(dst, RTAX_RTO_MIN)) -+ rto_min = dst_metric_rtt(dst, RTAX_RTO_MIN); -+ return rto_min; -+} -+ -+static inline u32 tcp_rto_min_us(struct sock *sk) -+{ -+ return jiffies_to_usecs(tcp_rto_min(sk)); -+} -+ -+/* Compute the actual receive window we are currently advertising. -+ * Rcv_nxt can be after the window if our peer push more data -+ * than the offered window. -+ */ -+static inline u32 tcp_receive_window(const struct tcp_sock *tp) -+{ -+ s32 win = tp->rcv_wup + tp->rcv_wnd - tp->rcv_nxt; -+ -+ if (win < 0) -+ win = 0; -+ return (u32) win; -+} -+ -+/* Choose a new window, without checks for shrinking, and without -+ * scaling applied to the result. The caller does these things -+ * if necessary. This is a "raw" window selection. -+ */ -+u32 __tcp_select_window(struct sock *sk); -+ -+void tcp_send_window_probe(struct sock *sk); -+ -+/* TCP timestamps are only 32-bits, this causes a slight -+ * complication on 64-bit systems since we store a snapshot -+ * of jiffies in the buffer control blocks below. We decided -+ * to use only the low 32-bits of jiffies and hide the ugly -+ * casts with the following macro. -+ */ -+#define tcp_time_stamp ((__u32)(jiffies)) -+ -+#define tcp_flag_byte(th) (((u_int8_t *)th)[13]) -+ -+#define TCPHDR_FIN 0x01 -+#define TCPHDR_SYN 0x02 -+#define TCPHDR_RST 0x04 -+#define TCPHDR_PSH 0x08 -+#define TCPHDR_ACK 0x10 -+#define TCPHDR_URG 0x20 -+#define TCPHDR_ECE 0x40 -+#define TCPHDR_CWR 0x80 -+ -+/* This is what the send packet queuing engine uses to pass -+ * TCP per-packet control information to the transmission code. -+ * We also store the host-order sequence numbers in here too. -+ * This is 44 bytes if IPV6 is enabled. -+ * If this grows please adjust skbuff.h:skbuff->cb[xxx] size appropriately. -+ */ -+struct tcp_skb_cb { -+ union { -+ struct inet_skb_parm h4; -+#if IS_ENABLED(CONFIG_IPV6) -+ struct inet6_skb_parm h6; -+#endif -+ } header; /* For incoming frames */ -+ __u32 seq; /* Starting sequence number */ -+ __u32 end_seq; /* SEQ + FIN + SYN + datalen */ -+ __u32 when; /* used to compute rtt's */ -+ __u8 tcp_flags; /* TCP header flags. (tcp[13]) */ -+ -+ __u8 sacked; /* State flags for SACK/FACK. */ -+#define TCPCB_SACKED_ACKED 0x01 /* SKB ACK'd by a SACK block */ -+#define TCPCB_SACKED_RETRANS 0x02 /* SKB retransmitted */ -+#define TCPCB_LOST 0x04 /* SKB is lost */ -+#define TCPCB_TAGBITS 0x07 /* All tag bits */ -+#define TCPCB_EVER_RETRANS 0x80 /* Ever retransmitted frame */ -+#define TCPCB_RETRANS (TCPCB_SACKED_RETRANS|TCPCB_EVER_RETRANS) -+ -+ __u8 ip_dsfield; /* IPv4 tos or IPv6 dsfield */ -+ /* 1 byte hole */ -+ __u32 ack_seq; /* Sequence number ACK'd */ -+}; -+ -+#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0])) -+ -+/* RFC3168 : 6.1.1 SYN packets must not have ECT/ECN bits set -+ * -+ * If we receive a SYN packet with these bits set, it means a network is -+ * playing bad games with TOS bits. In order to avoid possible false congestion -+ * notifications, we disable TCP ECN negociation. -+ */ -+static inline void -+TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb, -+ struct net *net) -+{ -+ const struct tcphdr *th = tcp_hdr(skb); -+ -+ if (net->ipv4.sysctl_tcp_ecn && th->ece && th->cwr && -+ INET_ECN_is_not_ect(TCP_SKB_CB(skb)->ip_dsfield)) -+ inet_rsk(req)->ecn_ok = 1; -+} -+ -+/* Due to TSO, an SKB can be composed of multiple actual -+ * packets. To keep these tracked properly, we use this. -+ */ -+static inline int tcp_skb_pcount(const struct sk_buff *skb) -+{ -+ return skb_shinfo(skb)->gso_segs; -+} -+ -+/* This is valid iff tcp_skb_pcount() > 1. */ -+static inline int tcp_skb_mss(const struct sk_buff *skb) -+{ -+ return skb_shinfo(skb)->gso_size; -+} -+ -+/* Events passed to congestion control interface */ -+enum tcp_ca_event { -+ CA_EVENT_TX_START, /* first transmit when no packets in flight */ -+ CA_EVENT_CWND_RESTART, /* congestion window restart */ -+ CA_EVENT_COMPLETE_CWR, /* end of congestion recovery */ -+ CA_EVENT_LOSS, /* loss timeout */ -+ CA_EVENT_FAST_ACK, /* in sequence ack */ -+ CA_EVENT_SLOW_ACK, /* other ack */ -+}; -+ -+/* -+ * Interface for adding new TCP congestion control handlers -+ */ -+#define TCP_CA_NAME_MAX 16 -+#define TCP_CA_MAX 128 -+#define TCP_CA_BUF_MAX (TCP_CA_NAME_MAX*TCP_CA_MAX) -+ -+#define TCP_CONG_NON_RESTRICTED 0x1 -+ -+struct tcp_congestion_ops { -+ struct list_head list; -+ unsigned long flags; -+ -+ /* initialize private data (optional) */ -+ void (*init)(struct sock *sk); -+ /* cleanup private data (optional) */ -+ void (*release)(struct sock *sk); -+ -+ /* return slow start threshold (required) */ -+ u32 (*ssthresh)(struct sock *sk); -+ /* do new cwnd calculation (required) */ -+ void (*cong_avoid)(struct sock *sk, u32 ack, u32 acked, u32 in_flight); -+ /* call before changing ca_state (optional) */ -+ void (*set_state)(struct sock *sk, u8 new_state); -+ /* call when cwnd event occurs (optional) */ -+ void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev); -+ /* new value of cwnd after loss (optional) */ -+ u32 (*undo_cwnd)(struct sock *sk); -+ /* hook for packet ack accounting (optional) */ -+ void (*pkts_acked)(struct sock *sk, u32 num_acked, s32 rtt_us); -+ /* get info for inet_diag (optional) */ -+ void (*get_info)(struct sock *sk, u32 ext, struct sk_buff *skb); -+ -+ char name[TCP_CA_NAME_MAX]; -+ struct module *owner; -+}; -+ -+int tcp_register_congestion_control(struct tcp_congestion_ops *type); -+void tcp_unregister_congestion_control(struct tcp_congestion_ops *type); -+ -+void tcp_init_congestion_control(struct sock *sk); -+void tcp_cleanup_congestion_control(struct sock *sk); -+int tcp_set_default_congestion_control(const char *name); -+void tcp_get_default_congestion_control(char *name); -+void tcp_get_available_congestion_control(char *buf, size_t len); -+void tcp_get_allowed_congestion_control(char *buf, size_t len); -+int tcp_set_allowed_congestion_control(char *allowed); -+int tcp_set_congestion_control(struct sock *sk, const char *name); -+int tcp_slow_start(struct tcp_sock *tp, u32 acked); -+void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w); -+ -+extern struct tcp_congestion_ops tcp_init_congestion_ops; -+u32 tcp_reno_ssthresh(struct sock *sk); -+void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight); -+extern struct tcp_congestion_ops tcp_reno; -+ -+static inline void tcp_set_ca_state(struct sock *sk, const u8 ca_state) -+{ -+ struct inet_connection_sock *icsk = inet_csk(sk); -+ -+ if (icsk->icsk_ca_ops->set_state) -+ icsk->icsk_ca_ops->set_state(sk, ca_state); -+ icsk->icsk_ca_state = ca_state; -+} -+ -+static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event) -+{ -+ const struct inet_connection_sock *icsk = inet_csk(sk); -+ -+ if (icsk->icsk_ca_ops->cwnd_event) -+ icsk->icsk_ca_ops->cwnd_event(sk, event); -+} -+ -+/* These functions determine how the current flow behaves in respect of SACK -+ * handling. SACK is negotiated with the peer, and therefore it can vary -+ * between different flows. -+ * -+ * tcp_is_sack - SACK enabled -+ * tcp_is_reno - No SACK -+ * tcp_is_fack - FACK enabled, implies SACK enabled -+ */ -+static inline int tcp_is_sack(const struct tcp_sock *tp) -+{ -+ return tp->rx_opt.sack_ok; -+} -+ -+static inline bool tcp_is_reno(const struct tcp_sock *tp) -+{ -+ return !tcp_is_sack(tp); -+} -+ -+static inline bool tcp_is_fack(const struct tcp_sock *tp) -+{ -+ return tp->rx_opt.sack_ok & TCP_FACK_ENABLED; -+} -+ -+static inline void tcp_enable_fack(struct tcp_sock *tp) -+{ -+ tp->rx_opt.sack_ok |= TCP_FACK_ENABLED; -+} -+ -+/* TCP early-retransmit (ER) is similar to but more conservative than -+ * the thin-dupack feature. Enable ER only if thin-dupack is disabled. -+ */ -+static inline void tcp_enable_early_retrans(struct tcp_sock *tp) -+{ -+ tp->do_early_retrans = sysctl_tcp_early_retrans && -+ sysctl_tcp_early_retrans < 4 && !sysctl_tcp_thin_dupack && -+ sysctl_tcp_reordering == 3; -+} -+ -+static inline void tcp_disable_early_retrans(struct tcp_sock *tp) -+{ -+ tp->do_early_retrans = 0; -+} -+ -+static inline unsigned int tcp_left_out(const struct tcp_sock *tp) -+{ -+ return tp->sacked_out + tp->lost_out; -+} -+ -+/* This determines how many packets are "in the network" to the best -+ * of our knowledge. In many cases it is conservative, but where -+ * detailed information is available from the receiver (via SACK -+ * blocks etc.) we can make more aggressive calculations. -+ * -+ * Use this for decisions involving congestion control, use just -+ * tp->packets_out to determine if the send queue is empty or not. -+ * -+ * Read this equation as: -+ * -+ * "Packets sent once on transmission queue" MINUS -+ * "Packets left network, but not honestly ACKed yet" PLUS -+ * "Packets fast retransmitted" -+ */ -+static inline unsigned int tcp_packets_in_flight(const struct tcp_sock *tp) -+{ -+ return tp->packets_out - tcp_left_out(tp) + tp->retrans_out; -+} -+ -+#define TCP_INFINITE_SSTHRESH 0x7fffffff -+ -+static inline bool tcp_in_initial_slowstart(const struct tcp_sock *tp) -+{ -+ return tp->snd_ssthresh >= TCP_INFINITE_SSTHRESH; -+} -+ -+static inline bool tcp_in_cwnd_reduction(const struct sock *sk) -+{ -+ return (TCPF_CA_CWR | TCPF_CA_Recovery) & -+ (1 << inet_csk(sk)->icsk_ca_state); -+} -+ -+/* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd. -+ * The exception is cwnd reduction phase, when cwnd is decreasing towards -+ * ssthresh. -+ */ -+static inline __u32 tcp_current_ssthresh(const struct sock *sk) -+{ -+ const struct tcp_sock *tp = tcp_sk(sk); -+ -+ if (tcp_in_cwnd_reduction(sk)) -+ return tp->snd_ssthresh; -+ else -+ return max(tp->snd_ssthresh, -+ ((tp->snd_cwnd >> 1) + -+ (tp->snd_cwnd >> 2))); -+} -+ -+/* Use define here intentionally to get WARN_ON location shown at the caller */ -+#define tcp_verify_left_out(tp) WARN_ON(tcp_left_out(tp) > tp->packets_out) -+ -+void tcp_enter_cwr(struct sock *sk, const int set_ssthresh); -+__u32 tcp_init_cwnd(const struct tcp_sock *tp, const struct dst_entry *dst); -+ -+/* The maximum number of MSS of available cwnd for which TSO defers -+ * sending if not using sysctl_tcp_tso_win_divisor. -+ */ -+static inline __u32 tcp_max_tso_deferred_mss(const struct tcp_sock *tp) -+{ -+ return 3; -+} -+ -+/* Slow start with delack produces 3 packets of burst, so that -+ * it is safe "de facto". This will be the default - same as -+ * the default reordering threshold - but if reordering increases, -+ * we must be able to allow cwnd to burst at least this much in order -+ * to not pull it back when holes are filled. -+ */ -+static __inline__ __u32 tcp_max_burst(const struct tcp_sock *tp) -+{ -+ return tp->reordering; -+} -+ -+/* Returns end sequence number of the receiver's advertised window */ -+static inline u32 tcp_wnd_end(const struct tcp_sock *tp) -+{ -+ return tp->snd_una + tp->snd_wnd; -+} -+bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight); -+ -+static inline void tcp_check_probe_timer(struct sock *sk) -+{ -+ const struct tcp_sock *tp = tcp_sk(sk); -+ const struct inet_connection_sock *icsk = inet_csk(sk); -+ -+ if (!tp->packets_out && !icsk->icsk_pending) -+ inet_csk_reset_xmit_timer(sk, ICSK_TIME_PROBE0, -+ icsk->icsk_rto, TCP_RTO_MAX); -+} -+ -+static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq) -+{ -+ tp->snd_wl1 = seq; -+} -+ -+static inline void tcp_update_wl(struct tcp_sock *tp, u32 seq) -+{ -+ tp->snd_wl1 = seq; -+} -+ -+/* -+ * Calculate(/check) TCP checksum -+ */ -+static inline __sum16 tcp_v4_check(int len, __be32 saddr, -+ __be32 daddr, __wsum base) -+{ -+ return csum_tcpudp_magic(saddr,daddr,len,IPPROTO_TCP,base); -+} -+ -+static inline __sum16 __tcp_checksum_complete(struct sk_buff *skb) -+{ -+ return __skb_checksum_complete(skb); -+} -+ -+static inline bool tcp_checksum_complete(struct sk_buff *skb) -+{ -+ return !skb_csum_unnecessary(skb) && -+ __tcp_checksum_complete(skb); -+} -+ -+/* Prequeue for VJ style copy to user, combined with checksumming. */ -+ -+static inline void tcp_prequeue_init(struct tcp_sock *tp) -+{ -+ tp->ucopy.task = NULL; -+ tp->ucopy.len = 0; -+ tp->ucopy.memory = 0; -+ skb_queue_head_init(&tp->ucopy.prequeue); -+#ifdef CONFIG_NET_DMA -+ tp->ucopy.dma_chan = NULL; -+ tp->ucopy.wakeup = 0; -+ tp->ucopy.pinned_list = NULL; -+ tp->ucopy.dma_cookie = 0; -+#endif -+} -+ -+bool tcp_prequeue(struct sock *sk, struct sk_buff *skb); -+ -+#undef STATE_TRACE -+ -+#ifdef STATE_TRACE -+static const char *statename[]={ -+ "Unused","Established","Syn Sent","Syn Recv", -+ "Fin Wait 1","Fin Wait 2","Time Wait", "Close", -+ "Close Wait","Last ACK","Listen","Closing" -+}; -+#endif -+void tcp_set_state(struct sock *sk, int state); -+ -+void tcp_done(struct sock *sk); -+ -+static inline void tcp_sack_reset(struct tcp_options_received *rx_opt) -+{ -+ rx_opt->dsack = 0; -+ rx_opt->num_sacks = 0; -+} -+ -+u32 tcp_default_init_rwnd(u32 mss); -+ -+/* Determine a window scaling and initial window to offer. */ -+void tcp_select_initial_window(int __space, __u32 mss, __u32 *rcv_wnd, -+ __u32 *window_clamp, int wscale_ok, -+ __u8 *rcv_wscale, __u32 init_rcv_wnd); -+ -+static inline int tcp_win_from_space(int space) -+{ -+ return sysctl_tcp_adv_win_scale<=0 ? -+ (space>>(-sysctl_tcp_adv_win_scale)) : -+ space - (space>>sysctl_tcp_adv_win_scale); -+} -+ -+/* Note: caller must be prepared to deal with negative returns */ -+static inline int tcp_space(const struct sock *sk) -+{ -+ return tcp_win_from_space(sk->sk_rcvbuf - -+ atomic_read(&sk->sk_rmem_alloc)); -+} -+ -+static inline int tcp_full_space(const struct sock *sk) -+{ -+ return tcp_win_from_space(sk->sk_rcvbuf); -+} -+ -+static inline void tcp_openreq_init(struct request_sock *req, -+ struct tcp_options_received *rx_opt, -+ struct sk_buff *skb) -+{ -+ struct inet_request_sock *ireq = inet_rsk(req); -+ -+ req->rcv_wnd = 0; /* So that tcp_send_synack() knows! */ -+ req->cookie_ts = 0; -+ tcp_rsk(req)->rcv_isn = TCP_SKB_CB(skb)->seq; -+ tcp_rsk(req)->rcv_nxt = TCP_SKB_CB(skb)->seq + 1; -+ tcp_rsk(req)->snt_synack = 0; -+ req->mss = rx_opt->mss_clamp; -+ req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0; -+ ireq->tstamp_ok = rx_opt->tstamp_ok; -+ ireq->sack_ok = rx_opt->sack_ok; -+ ireq->snd_wscale = rx_opt->snd_wscale; -+ ireq->wscale_ok = rx_opt->wscale_ok; -+ ireq->acked = 0; -+ ireq->ecn_ok = 0; -+ ireq->ir_rmt_port = tcp_hdr(skb)->source; -+ ireq->ir_num = ntohs(tcp_hdr(skb)->dest); -+} -+ -+void tcp_enter_memory_pressure(struct sock *sk); -+ -+static inline int keepalive_intvl_when(const struct tcp_sock *tp) -+{ -+ return tp->keepalive_intvl ? : sysctl_tcp_keepalive_intvl; -+} -+ -+static inline int keepalive_time_when(const struct tcp_sock *tp) -+{ -+ return tp->keepalive_time ? : sysctl_tcp_keepalive_time; -+} -+ -+static inline int keepalive_probes(const struct tcp_sock *tp) -+{ -+ return tp->keepalive_probes ? : sysctl_tcp_keepalive_probes; -+} -+ -+static inline u32 keepalive_time_elapsed(const struct tcp_sock *tp) -+{ -+ const struct inet_connection_sock *icsk = &tp->inet_conn; -+ -+ return min_t(u32, tcp_time_stamp - icsk->icsk_ack.lrcvtime, -+ tcp_time_stamp - tp->rcv_tstamp); -+} -+ -+static inline int tcp_fin_time(const struct sock *sk) -+{ -+ int fin_timeout = tcp_sk(sk)->linger2 ? : sysctl_tcp_fin_timeout; -+ const int rto = inet_csk(sk)->icsk_rto; -+ -+ if (fin_timeout < (rto << 2) - (rto >> 1)) -+ fin_timeout = (rto << 2) - (rto >> 1); -+ -+ return fin_timeout; -+} -+ -+static inline bool tcp_paws_check(const struct tcp_options_received *rx_opt, -+ int paws_win) -+{ -+ if ((s32)(rx_opt->ts_recent - rx_opt->rcv_tsval) <= paws_win) -+ return true; -+ if (unlikely(get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)) -+ return true; -+ /* -+ * Some OSes send SYN and SYNACK messages with tsval=0 tsecr=0, -+ * then following tcp messages have valid values. Ignore 0 value, -+ * or else 'negative' tsval might forbid us to accept their packets. -+ */ -+ if (!rx_opt->ts_recent) -+ return true; -+ return false; -+} -+ -+static inline bool tcp_paws_reject(const struct tcp_options_received *rx_opt, -+ int rst) -+{ -+ if (tcp_paws_check(rx_opt, 0)) -+ return false; -+ -+ /* RST segments are not recommended to carry timestamp, -+ and, if they do, it is recommended to ignore PAWS because -+ "their cleanup function should take precedence over timestamps." -+ Certainly, it is mistake. It is necessary to understand the reasons -+ of this constraint to relax it: if peer reboots, clock may go -+ out-of-sync and half-open connections will not be reset. -+ Actually, the problem would be not existing if all -+ the implementations followed draft about maintaining clock -+ via reboots. Linux-2.2 DOES NOT! -+ -+ However, we can relax time bounds for RST segments to MSL. -+ */ -+ if (rst && get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_MSL) -+ return false; -+ return true; -+} -+ -+static inline void tcp_mib_init(struct net *net) -+{ -+ /* See RFC 2012 */ -+ TCP_ADD_STATS_USER(net, TCP_MIB_RTOALGORITHM, 1); -+ TCP_ADD_STATS_USER(net, TCP_MIB_RTOMIN, TCP_RTO_MIN*1000/HZ); -+ TCP_ADD_STATS_USER(net, TCP_MIB_RTOMAX, TCP_RTO_MAX*1000/HZ); -+ TCP_ADD_STATS_USER(net, TCP_MIB_MAXCONN, -1); -+} -+ -+/* from STCP */ -+static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp) -+{ -+ tp->lost_skb_hint = NULL; -+} -+ -+static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp) -+{ -+ tcp_clear_retrans_hints_partial(tp); -+ tp->retransmit_skb_hint = NULL; -+} -+ -+/* MD5 Signature */ -+struct crypto_hash; -+ -+union tcp_md5_addr { -+ struct in_addr a4; -+#if IS_ENABLED(CONFIG_IPV6) -+ struct in6_addr a6; -+#endif -+}; -+ -+/* - key database */ -+struct tcp_md5sig_key { -+ struct hlist_node node; -+ u8 keylen; -+ u8 family; /* AF_INET or AF_INET6 */ -+ union tcp_md5_addr addr; -+ u8 key[TCP_MD5SIG_MAXKEYLEN]; -+ struct rcu_head rcu; -+}; -+ -+/* - sock block */ -+struct tcp_md5sig_info { -+ struct hlist_head head; -+ struct rcu_head rcu; -+}; -+ -+/* - pseudo header */ -+struct tcp4_pseudohdr { -+ __be32 saddr; -+ __be32 daddr; -+ __u8 pad; -+ __u8 protocol; -+ __be16 len; -+}; -+ -+struct tcp6_pseudohdr { -+ struct in6_addr saddr; -+ struct in6_addr daddr; -+ __be32 len; -+ __be32 protocol; /* including padding */ -+}; -+ -+union tcp_md5sum_block { -+ struct tcp4_pseudohdr ip4; -+#if IS_ENABLED(CONFIG_IPV6) -+ struct tcp6_pseudohdr ip6; -+#endif -+}; -+ -+/* - pool: digest algorithm, hash description and scratch buffer */ -+struct tcp_md5sig_pool { -+ struct hash_desc md5_desc; -+ union tcp_md5sum_block md5_blk; -+}; -+ -+/* - functions */ -+int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, -+ const struct sock *sk, const struct request_sock *req, -+ const struct sk_buff *skb); -+int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr, -+ int family, const u8 *newkey, u8 newkeylen, gfp_t gfp); -+int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, -+ int family); -+struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk, -+ struct sock *addr_sk); -+ -+#ifdef CONFIG_TCP_MD5SIG -+struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk, -+ const union tcp_md5_addr *addr, -+ int family); -+#define tcp_twsk_md5_key(twsk) ((twsk)->tw_md5_key) -+#else -+static inline struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk, -+ const union tcp_md5_addr *addr, -+ int family) -+{ -+ return NULL; -+} -+#define tcp_twsk_md5_key(twsk) NULL -+#endif -+ -+bool tcp_alloc_md5sig_pool(void); -+ -+struct tcp_md5sig_pool *tcp_get_md5sig_pool(void); -+static inline void tcp_put_md5sig_pool(void) -+{ -+ local_bh_enable(); -+} -+ -+int tcp_md5_hash_header(struct tcp_md5sig_pool *, const struct tcphdr *); -+int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *, -+ unsigned int header_len); -+int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, -+ const struct tcp_md5sig_key *key); -+ -+/* From tcp_fastopen.c */ -+void tcp_fastopen_cache_get(struct sock *sk, u16 *mss, -+ struct tcp_fastopen_cookie *cookie, int *syn_loss, -+ unsigned long *last_syn_loss); -+void tcp_fastopen_cache_set(struct sock *sk, u16 mss, -+ struct tcp_fastopen_cookie *cookie, bool syn_lost); -+struct tcp_fastopen_request { -+ /* Fast Open cookie. Size 0 means a cookie request */ -+ struct tcp_fastopen_cookie cookie; -+ struct msghdr *data; /* data in MSG_FASTOPEN */ -+ size_t size; -+ int copied; /* queued in tcp_connect() */ -+}; -+void tcp_free_fastopen_req(struct tcp_sock *tp); -+ -+extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; -+int tcp_fastopen_reset_cipher(void *key, unsigned int len); -+void tcp_fastopen_cookie_gen(__be32 src, __be32 dst, -+ struct tcp_fastopen_cookie *foc); -+void tcp_fastopen_init_key_once(bool publish); -+#define TCP_FASTOPEN_KEY_LENGTH 16 -+ -+/* Fastopen key context */ -+struct tcp_fastopen_context { -+ struct crypto_cipher *tfm; -+ __u8 key[TCP_FASTOPEN_KEY_LENGTH]; -+ struct rcu_head rcu; -+}; -+ -+/* write queue abstraction */ -+static inline void tcp_write_queue_purge(struct sock *sk) -+{ -+ struct sk_buff *skb; -+ -+ while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) -+ sk_wmem_free_skb(sk, skb); -+ sk_mem_reclaim(sk); -+ tcp_clear_all_retrans_hints(tcp_sk(sk)); -+} -+ -+static inline struct sk_buff *tcp_write_queue_head(const struct sock *sk) -+{ -+ return skb_peek(&sk->sk_write_queue); -+} -+ -+static inline struct sk_buff *tcp_write_queue_tail(const struct sock *sk) -+{ -+ return skb_peek_tail(&sk->sk_write_queue); -+} -+ -+static inline struct sk_buff *tcp_write_queue_next(const struct sock *sk, -+ const struct sk_buff *skb) -+{ -+ return skb_queue_next(&sk->sk_write_queue, skb); -+} -+ -+static inline struct sk_buff *tcp_write_queue_prev(const struct sock *sk, -+ const struct sk_buff *skb) -+{ -+ return skb_queue_prev(&sk->sk_write_queue, skb); -+} -+ -+#define tcp_for_write_queue(skb, sk) \ -+ skb_queue_walk(&(sk)->sk_write_queue, skb) -+ -+#define tcp_for_write_queue_from(skb, sk) \ -+ skb_queue_walk_from(&(sk)->sk_write_queue, skb) -+ -+#define tcp_for_write_queue_from_safe(skb, tmp, sk) \ -+ skb_queue_walk_from_safe(&(sk)->sk_write_queue, skb, tmp) -+ -+static inline struct sk_buff *tcp_send_head(const struct sock *sk) -+{ -+ return sk->sk_send_head; -+} -+ -+static inline bool tcp_skb_is_last(const struct sock *sk, -+ const struct sk_buff *skb) -+{ -+ return skb_queue_is_last(&sk->sk_write_queue, skb); -+} -+ -+static inline void tcp_advance_send_head(struct sock *sk, const struct sk_buff *skb) -+{ -+ if (tcp_skb_is_last(sk, skb)) -+ sk->sk_send_head = NULL; -+ else -+ sk->sk_send_head = tcp_write_queue_next(sk, skb); -+} -+ -+static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unlinked) -+{ -+ if (sk->sk_send_head == skb_unlinked) -+ sk->sk_send_head = NULL; -+} -+ -+static inline void tcp_init_send_head(struct sock *sk) -+{ -+ sk->sk_send_head = NULL; -+} -+ -+static inline void __tcp_add_write_queue_tail(struct sock *sk, struct sk_buff *skb) -+{ -+ __skb_queue_tail(&sk->sk_write_queue, skb); -+} -+ -+static inline void tcp_add_write_queue_tail(struct sock *sk, struct sk_buff *skb) -+{ -+ __tcp_add_write_queue_tail(sk, skb); -+ -+ /* Queue it, remembering where we must start sending. */ -+ if (sk->sk_send_head == NULL) { -+ sk->sk_send_head = skb; -+ -+ if (tcp_sk(sk)->highest_sack == NULL) -+ tcp_sk(sk)->highest_sack = skb; -+ } -+} -+ -+static inline void __tcp_add_write_queue_head(struct sock *sk, struct sk_buff *skb) -+{ -+ __skb_queue_head(&sk->sk_write_queue, skb); -+} -+ -+/* Insert buff after skb on the write queue of sk. */ -+static inline void tcp_insert_write_queue_after(struct sk_buff *skb, -+ struct sk_buff *buff, -+ struct sock *sk) -+{ -+ __skb_queue_after(&sk->sk_write_queue, skb, buff); -+} -+ -+/* Insert new before skb on the write queue of sk. */ -+static inline void tcp_insert_write_queue_before(struct sk_buff *new, -+ struct sk_buff *skb, -+ struct sock *sk) -+{ -+ __skb_queue_before(&sk->sk_write_queue, skb, new); -+ -+ if (sk->sk_send_head == skb) -+ sk->sk_send_head = new; -+} -+ -+static inline void tcp_unlink_write_queue(struct sk_buff *skb, struct sock *sk) -+{ -+ __skb_unlink(skb, &sk->sk_write_queue); -+} -+ -+static inline bool tcp_write_queue_empty(struct sock *sk) -+{ -+ return skb_queue_empty(&sk->sk_write_queue); -+} -+ -+static inline void tcp_push_pending_frames(struct sock *sk) -+{ -+ if (tcp_send_head(sk)) { -+ struct tcp_sock *tp = tcp_sk(sk); -+ -+ __tcp_push_pending_frames(sk, tcp_current_mss(sk), tp->nonagle); -+ } -+} -+ -+/* Start sequence of the skb just after the highest skb with SACKed -+ * bit, valid only if sacked_out > 0 or when the caller has ensured -+ * validity by itself. -+ */ -+static inline u32 tcp_highest_sack_seq(struct tcp_sock *tp) -+{ -+ if (!tp->sacked_out) -+ return tp->snd_una; -+ -+ if (tp->highest_sack == NULL) -+ return tp->snd_nxt; -+ -+ return TCP_SKB_CB(tp->highest_sack)->seq; -+} -+ -+static inline void tcp_advance_highest_sack(struct sock *sk, struct sk_buff *skb) -+{ -+ tcp_sk(sk)->highest_sack = tcp_skb_is_last(sk, skb) ? NULL : -+ tcp_write_queue_next(sk, skb); -+} -+ -+static inline struct sk_buff *tcp_highest_sack(struct sock *sk) -+{ -+ return tcp_sk(sk)->highest_sack; -+} -+ -+static inline void tcp_highest_sack_reset(struct sock *sk) -+{ -+ tcp_sk(sk)->highest_sack = tcp_write_queue_head(sk); -+} -+ -+/* Called when old skb is about to be deleted (to be combined with new skb) */ -+static inline void tcp_highest_sack_combine(struct sock *sk, -+ struct sk_buff *old, -+ struct sk_buff *new) -+{ -+ if (tcp_sk(sk)->sacked_out && (old == tcp_sk(sk)->highest_sack)) -+ tcp_sk(sk)->highest_sack = new; -+} -+ -+/* Determines whether this is a thin stream (which may suffer from -+ * increased latency). Used to trigger latency-reducing mechanisms. -+ */ -+static inline bool tcp_stream_is_thin(struct tcp_sock *tp) -+{ -+ return tp->packets_out < 4 && !tcp_in_initial_slowstart(tp); -+} -+ -+/* /proc */ -+enum tcp_seq_states { -+ TCP_SEQ_STATE_LISTENING, -+ TCP_SEQ_STATE_OPENREQ, -+ TCP_SEQ_STATE_ESTABLISHED, -+}; -+ -+int tcp_seq_open(struct inode *inode, struct file *file); -+ -+struct tcp_seq_afinfo { -+ char *name; -+ sa_family_t family; -+ const struct file_operations *seq_fops; -+ struct seq_operations seq_ops; -+}; -+ -+struct tcp_iter_state { -+ struct seq_net_private p; -+ sa_family_t family; -+ enum tcp_seq_states state; -+ struct sock *syn_wait_sk; -+ int bucket, offset, sbucket, num; -+ kuid_t uid; -+ loff_t last_pos; -+}; -+ -+int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo); -+void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo); -+ -+extern struct request_sock_ops tcp_request_sock_ops; -+extern struct request_sock_ops tcp6_request_sock_ops; -+ -+void tcp_v4_destroy_sock(struct sock *sk); -+ -+struct sk_buff *tcp_gso_segment(struct sk_buff *skb, -+ netdev_features_t features); -+struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb); -+int tcp_gro_complete(struct sk_buff *skb); -+ -+void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr); -+ -+static inline u32 tcp_notsent_lowat(const struct tcp_sock *tp) -+{ -+ return tp->notsent_lowat ?: sysctl_tcp_notsent_lowat; -+} -+ -+static inline bool tcp_stream_memory_free(const struct sock *sk) -+{ -+ const struct tcp_sock *tp = tcp_sk(sk); -+ u32 notsent_bytes = tp->write_seq - tp->snd_nxt; -+ -+ return notsent_bytes < tcp_notsent_lowat(tp); -+} -+ -+#ifdef CONFIG_PROC_FS -+int tcp4_proc_init(void); -+void tcp4_proc_exit(void); -+#endif -+ -+/* TCP af-specific functions */ -+struct tcp_sock_af_ops { -+#ifdef CONFIG_TCP_MD5SIG -+ struct tcp_md5sig_key *(*md5_lookup) (struct sock *sk, -+ struct sock *addr_sk); -+ int (*calc_md5_hash) (char *location, -+ struct tcp_md5sig_key *md5, -+ const struct sock *sk, -+ const struct request_sock *req, -+ const struct sk_buff *skb); -+ int (*md5_parse) (struct sock *sk, -+ char __user *optval, -+ int optlen); -+#endif -+}; -+ -+struct tcp_request_sock_ops { -+#ifdef CONFIG_TCP_MD5SIG -+ struct tcp_md5sig_key *(*md5_lookup) (struct sock *sk, -+ struct request_sock *req); -+ int (*calc_md5_hash) (char *location, -+ struct tcp_md5sig_key *md5, -+ const struct sock *sk, -+ const struct request_sock *req, -+ const struct sk_buff *skb); -+#endif -+}; -+ -+int tcpv4_offload_init(void); -+ -+void tcp_v4_init(void); -+void tcp_init(void); -+ -+#endif /* _TCP_H */ -diff -Nur linux-3.15-rc7.orig/net/core/request_sock.c linux-3.15-rc7/net/core/request_sock.c ---- linux-3.15-rc7.orig/net/core/request_sock.c 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/core/request_sock.c 2014-05-31 22:42:49.028605326 +0200 -@@ -131,6 +131,7 @@ - kfree(lopt); - } - -+#ifdef CONFIG_TCP_FASTOPEN - /* - * This function is called to set a Fast Open socket's "fastopen_rsk" field - * to NULL when a TFO socket no longer needs to access the request_sock. -@@ -222,3 +223,4 @@ - spin_unlock_bh(&fastopenq->lock); - sock_put(lsk); - } -+#endif -diff -Nur linux-3.15-rc7.orig/net/core/request_sock.c.orig linux-3.15-rc7/net/core/request_sock.c.orig ---- linux-3.15-rc7.orig/net/core/request_sock.c.orig 1970-01-01 01:00:00.000000000 +0100 -+++ linux-3.15-rc7/net/core/request_sock.c.orig 2014-05-26 01:06:00.000000000 +0200 -@@ -0,0 +1,224 @@ -+/* -+ * NET Generic infrastructure for Network protocols. -+ * -+ * Authors: Arnaldo Carvalho de Melo -+ * -+ * From code originally in include/net/tcp.h -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version -+ * 2 of the License, or (at your option) any later version. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+/* -+ * Maximum number of SYN_RECV sockets in queue per LISTEN socket. -+ * One SYN_RECV socket costs about 80bytes on a 32bit machine. -+ * It would be better to replace it with a global counter for all sockets -+ * but then some measure against one socket starving all other sockets -+ * would be needed. -+ * -+ * The minimum value of it is 128. Experiments with real servers show that -+ * it is absolutely not enough even at 100conn/sec. 256 cures most -+ * of problems. -+ * This value is adjusted to 128 for low memory machines, -+ * and it will increase in proportion to the memory of machine. -+ * Note : Dont forget somaxconn that may limit backlog too. -+ */ -+int sysctl_max_syn_backlog = 256; -+EXPORT_SYMBOL(sysctl_max_syn_backlog); -+ -+int reqsk_queue_alloc(struct request_sock_queue *queue, -+ unsigned int nr_table_entries) -+{ -+ size_t lopt_size = sizeof(struct listen_sock); -+ struct listen_sock *lopt; -+ -+ nr_table_entries = min_t(u32, nr_table_entries, sysctl_max_syn_backlog); -+ nr_table_entries = max_t(u32, nr_table_entries, 8); -+ nr_table_entries = roundup_pow_of_two(nr_table_entries + 1); -+ lopt_size += nr_table_entries * sizeof(struct request_sock *); -+ if (lopt_size > PAGE_SIZE) -+ lopt = vzalloc(lopt_size); -+ else -+ lopt = kzalloc(lopt_size, GFP_KERNEL); -+ if (lopt == NULL) -+ return -ENOMEM; -+ -+ for (lopt->max_qlen_log = 3; -+ (1 << lopt->max_qlen_log) < nr_table_entries; -+ lopt->max_qlen_log++); -+ -+ get_random_bytes(&lopt->hash_rnd, sizeof(lopt->hash_rnd)); -+ rwlock_init(&queue->syn_wait_lock); -+ queue->rskq_accept_head = NULL; -+ lopt->nr_table_entries = nr_table_entries; -+ -+ write_lock_bh(&queue->syn_wait_lock); -+ queue->listen_opt = lopt; -+ write_unlock_bh(&queue->syn_wait_lock); -+ -+ return 0; -+} -+ -+void __reqsk_queue_destroy(struct request_sock_queue *queue) -+{ -+ struct listen_sock *lopt; -+ size_t lopt_size; -+ -+ /* -+ * this is an error recovery path only -+ * no locking needed and the lopt is not NULL -+ */ -+ -+ lopt = queue->listen_opt; -+ lopt_size = sizeof(struct listen_sock) + -+ lopt->nr_table_entries * sizeof(struct request_sock *); -+ -+ if (lopt_size > PAGE_SIZE) -+ vfree(lopt); -+ else -+ kfree(lopt); -+} -+ -+static inline struct listen_sock *reqsk_queue_yank_listen_sk( -+ struct request_sock_queue *queue) -+{ -+ struct listen_sock *lopt; -+ -+ write_lock_bh(&queue->syn_wait_lock); -+ lopt = queue->listen_opt; -+ queue->listen_opt = NULL; -+ write_unlock_bh(&queue->syn_wait_lock); -+ -+ return lopt; -+} -+ -+void reqsk_queue_destroy(struct request_sock_queue *queue) -+{ -+ /* make all the listen_opt local to us */ -+ struct listen_sock *lopt = reqsk_queue_yank_listen_sk(queue); -+ size_t lopt_size = sizeof(struct listen_sock) + -+ lopt->nr_table_entries * sizeof(struct request_sock *); -+ -+ if (lopt->qlen != 0) { -+ unsigned int i; -+ -+ for (i = 0; i < lopt->nr_table_entries; i++) { -+ struct request_sock *req; -+ -+ while ((req = lopt->syn_table[i]) != NULL) { -+ lopt->syn_table[i] = req->dl_next; -+ lopt->qlen--; -+ reqsk_free(req); -+ } -+ } -+ } -+ -+ WARN_ON(lopt->qlen != 0); -+ if (lopt_size > PAGE_SIZE) -+ vfree(lopt); -+ else -+ kfree(lopt); -+} -+ -+/* -+ * This function is called to set a Fast Open socket's "fastopen_rsk" field -+ * to NULL when a TFO socket no longer needs to access the request_sock. -+ * This happens only after 3WHS has been either completed or aborted (e.g., -+ * RST is received). -+ * -+ * Before TFO, a child socket is created only after 3WHS is completed, -+ * hence it never needs to access the request_sock. things get a lot more -+ * complex with TFO. A child socket, accepted or not, has to access its -+ * request_sock for 3WHS processing, e.g., to retransmit SYN-ACK pkts, -+ * until 3WHS is either completed or aborted. Afterwards the req will stay -+ * until either the child socket is accepted, or in the rare case when the -+ * listener is closed before the child is accepted. -+ * -+ * In short, a request socket is only freed after BOTH 3WHS has completed -+ * (or aborted) and the child socket has been accepted (or listener closed). -+ * When a child socket is accepted, its corresponding req->sk is set to -+ * NULL since it's no longer needed. More importantly, "req->sk == NULL" -+ * will be used by the code below to determine if a child socket has been -+ * accepted or not, and the check is protected by the fastopenq->lock -+ * described below. -+ * -+ * Note that fastopen_rsk is only accessed from the child socket's context -+ * with its socket lock held. But a request_sock (req) can be accessed by -+ * both its child socket through fastopen_rsk, and a listener socket through -+ * icsk_accept_queue.rskq_accept_head. To protect the access a simple spin -+ * lock per listener "icsk->icsk_accept_queue.fastopenq->lock" is created. -+ * only in the rare case when both the listener and the child locks are held, -+ * e.g., in inet_csk_listen_stop() do we not need to acquire the lock. -+ * The lock also protects other fields such as fastopenq->qlen, which is -+ * decremented by this function when fastopen_rsk is no longer needed. -+ * -+ * Note that another solution was to simply use the existing socket lock -+ * from the listener. But first socket lock is difficult to use. It is not -+ * a simple spin lock - one must consider sock_owned_by_user() and arrange -+ * to use sk_add_backlog() stuff. But what really makes it infeasible is the -+ * locking hierarchy violation. E.g., inet_csk_listen_stop() may try to -+ * acquire a child's lock while holding listener's socket lock. A corner -+ * case might also exist in tcp_v4_hnd_req() that will trigger this locking -+ * order. -+ * -+ * When a TFO req is created, it needs to sock_hold its listener to prevent -+ * the latter data structure from going away. -+ * -+ * This function also sets "treq->listener" to NULL and unreference listener -+ * socket. treq->listener is used by the listener so it is protected by the -+ * fastopenq->lock in this function. -+ */ -+void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, -+ bool reset) -+{ -+ struct sock *lsk = tcp_rsk(req)->listener; -+ struct fastopen_queue *fastopenq = -+ inet_csk(lsk)->icsk_accept_queue.fastopenq; -+ -+ tcp_sk(sk)->fastopen_rsk = NULL; -+ spin_lock_bh(&fastopenq->lock); -+ fastopenq->qlen--; -+ tcp_rsk(req)->listener = NULL; -+ if (req->sk) /* the child socket hasn't been accepted yet */ -+ goto out; -+ -+ if (!reset || lsk->sk_state != TCP_LISTEN) { -+ /* If the listener has been closed don't bother with the -+ * special RST handling below. -+ */ -+ spin_unlock_bh(&fastopenq->lock); -+ sock_put(lsk); -+ reqsk_free(req); -+ return; -+ } -+ /* Wait for 60secs before removing a req that has triggered RST. -+ * This is a simple defense against TFO spoofing attack - by -+ * counting the req against fastopen.max_qlen, and disabling -+ * TFO when the qlen exceeds max_qlen. -+ * -+ * For more details see CoNext'11 "TCP Fast Open" paper. -+ */ -+ req->expires = jiffies + 60*HZ; -+ if (fastopenq->rskq_rst_head == NULL) -+ fastopenq->rskq_rst_head = req; -+ else -+ fastopenq->rskq_rst_tail->dl_next = req; -+ -+ req->dl_next = NULL; -+ fastopenq->rskq_rst_tail = req; -+ fastopenq->qlen++; -+out: -+ spin_unlock_bh(&fastopenq->lock); -+ sock_put(lsk); -+} -diff -Nur linux-3.15-rc7.orig/net/ipv4/Kconfig linux-3.15-rc7/net/ipv4/Kconfig ---- linux-3.15-rc7.orig/net/ipv4/Kconfig 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/ipv4/Kconfig 2014-05-31 22:42:49.028605326 +0200 -@@ -307,6 +307,10 @@ - the notion of a secure tunnel for IPSEC and then use routing protocol - on top. - -+config TCP_FASTOPEN -+ bool "Enable TCP fastopen" -+ default n -+ - config INET_AH - tristate "IP: AH transformation" - select XFRM_ALGO -diff -Nur linux-3.15-rc7.orig/net/ipv4/Makefile linux-3.15-rc7/net/ipv4/Makefile ---- linux-3.15-rc7.orig/net/ipv4/Makefile 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/ipv4/Makefile 2014-05-31 22:42:49.028605326 +0200 -@@ -7,7 +7,7 @@ - ip_output.o ip_sockglue.o inet_hashtables.o \ - inet_timewait_sock.o inet_connection_sock.o \ - tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \ -- tcp_minisocks.o tcp_cong.o tcp_metrics.o tcp_fastopen.o \ -+ tcp_minisocks.o tcp_cong.o tcp_metrics.o \ - tcp_offload.o datagram.o raw.o udp.o udplite.o \ - udp_offload.o arp.o icmp.o devinet.o af_inet.o igmp.o \ - fib_frontend.o fib_semantics.o fib_trie.o \ -@@ -51,6 +51,7 @@ - obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o - obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o - obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o -+obj-$(CONFIG_TCP_FASTOPEN) += tcp_fastopen.o - obj-$(CONFIG_MEMCG_KMEM) += tcp_memcontrol.o - obj-$(CONFIG_NETLABEL) += cipso_ipv4.o - -diff -Nur linux-3.15-rc7.orig/net/ipv4/sysctl_net_ipv4.c linux-3.15-rc7/net/ipv4/sysctl_net_ipv4.c ---- linux-3.15-rc7.orig/net/ipv4/sysctl_net_ipv4.c 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/ipv4/sysctl_net_ipv4.c 2014-05-31 22:42:49.028605326 +0200 -@@ -200,6 +200,7 @@ - return ret; - } - -+#ifdef CONFIG_TCP_FASTOPEN - static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos) -@@ -246,6 +247,7 @@ - kfree(tbl.data); - return ret; - } -+#endif - - static struct ctl_table ipv4_table[] = { - { -@@ -388,6 +390,7 @@ - .proc_handler = proc_dointvec - }, - #endif -+#ifdef CONFIG_TCP_FASTOPEN - { - .procname = "tcp_fastopen", - .data = &sysctl_tcp_fastopen, -@@ -401,6 +404,7 @@ - .maxlen = ((TCP_FASTOPEN_KEY_LENGTH * 2) + 10), - .proc_handler = proc_tcp_fastopen_key, - }, -+#endif - { - .procname = "tcp_tw_recycle", - .data = &tcp_death_row.sysctl_tw_recycle, -diff -Nur linux-3.15-rc7.orig/net/ipv4/tcp.c linux-3.15-rc7/net/ipv4/tcp.c ---- linux-3.15-rc7.orig/net/ipv4/tcp.c 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/ipv4/tcp.c 2014-05-31 22:42:49.028605326 +0200 -@@ -1036,6 +1036,7 @@ - return tmp; - } - -+#ifdef CONFIG_TCP_FASTOPEN - void tcp_free_fastopen_req(struct tcp_sock *tp) - { - if (tp->fastopen_req != NULL) { -@@ -1069,6 +1070,7 @@ - tcp_free_fastopen_req(tp); - return err; - } -+#endif - - int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, - size_t size) -@@ -1084,6 +1086,7 @@ - lock_sock(sk); - - flags = msg->msg_flags; -+#ifdef CONFIG_TCP_FASTOPEN - if (flags & MSG_FASTOPEN) { - err = tcp_sendmsg_fastopen(sk, msg, &copied_syn, size); - if (err == -EINPROGRESS && copied_syn > 0) -@@ -1092,6 +1095,7 @@ - goto out_err; - offset = copied_syn; - } -+#endif - - timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT); - -diff -Nur linux-3.15-rc7.orig/net/ipv4/tcp_ipv4.c linux-3.15-rc7/net/ipv4/tcp_ipv4.c ---- linux-3.15-rc7.orig/net/ipv4/tcp_ipv4.c 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/ipv4/tcp_ipv4.c 2014-05-31 22:42:49.032605359 +0200 -@@ -1260,6 +1260,7 @@ - }; - #endif - -+#ifdef CONFIG_TCP_FASTOPEN - static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb, - struct request_sock *req, - struct tcp_fastopen_cookie *foc, -@@ -1440,6 +1441,23 @@ - WARN_ON(req->sk == NULL); - return 0; - } -+#else -+static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb, -+ struct request_sock *req, -+ struct tcp_fastopen_cookie *foc, -+ struct tcp_fastopen_cookie *valid_foc) -+{ -+ return false; -+} -+ -+static int tcp_v4_conn_req_fastopen(struct sock *sk, -+ struct sk_buff *skb, -+ struct sk_buff *skb_synack, -+ struct request_sock *req) -+{ -+ return 0; -+} -+#endif - - int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) - { -diff -Nur linux-3.15-rc7.orig/net/Kconfig linux-3.15-rc7/net/Kconfig ---- linux-3.15-rc7.orig/net/Kconfig 2014-05-26 01:06:00.000000000 +0200 -+++ linux-3.15-rc7/net/Kconfig 2014-05-31 22:42:49.028605326 +0200 -@@ -53,8 +53,8 @@ - - config INET - bool "TCP/IP networking" -- select CRYPTO -- select CRYPTO_AES -+ select CRYPTO if TCP_FASTOPEN -+ select CRYPTO_AES if TCP_FASTOPEN - ---help--- - These are the protocols used on the Internet and on most local - Ethernets. It is highly recommended to say Y here (this will enlarge diff --git a/target/linux/patches/3.15-rc7/uuid.patch b/target/linux/patches/3.15-rc7/uuid.patch deleted file mode 100644 index e8d523074..000000000 --- a/target/linux/patches/3.15-rc7/uuid.patch +++ /dev/null @@ -1,263 +0,0 @@ -diff -Nur linux-3.14.1.orig/block/genhd.c linux-3.14.1/block/genhd.c ---- linux-3.14.1.orig/block/genhd.c 2014-04-14 15:50:10.000000000 +0200 -+++ linux-3.14.1/block/genhd.c 2014-04-24 09:50:05.281309701 +0200 -@@ -34,7 +34,7 @@ - static DEFINE_MUTEX(ext_devt_mutex); - static DEFINE_IDR(ext_devt_idr); - --static struct device_type disk_type; -+struct device_type disk_type; - - static void disk_check_events(struct disk_events *ev, - unsigned int *clearing_ptr); -@@ -1121,7 +1121,7 @@ - return NULL; - } - --static struct device_type disk_type = { -+struct device_type disk_type = { - .name = "disk", - .groups = disk_attr_groups, - .release = disk_release, -diff -Nur linux-3.14.1.orig/init/do_mounts.c linux-3.14.1/init/do_mounts.c ---- linux-3.14.1.orig/init/do_mounts.c 2014-04-14 15:50:10.000000000 +0200 -+++ linux-3.14.1/init/do_mounts.c 2014-04-24 10:17:54.043200973 +0200 -@@ -33,6 +33,7 @@ - #include - #include - -+#include "../fs/ext2/ext2.h" - #include "do_mounts.h" - - int __initdata rd_doload; /* 1 = load RAM disk, 0 = don't load */ -@@ -44,6 +45,132 @@ - - dev_t ROOT_DEV; - -+#ifdef CONFIG_EXT2_FS -+/* support for root=UUID=ce40d6b2-18eb-4a75-aefe-7ddb0995ce63 bootargs */ -+ -+#include -+ -+__u8 root_dev_uuid[16]; -+int root_dev_type; /* 0 = normal (/dev/hda1, 0301); 1 = UUID; 3 = bad */ -+ -+/* imported from block/genhd.c after removing its static qualifier */ -+extern struct device_type disk_type; -+ -+/* helper function */ -+static __u8 __init fromhex(char c) -+{ -+ if (c >= '0' && c <= '9') -+ return (c - '0'); -+ c &= ~32; -+ if (c >= 'A' && c <= 'F') -+ return (c - 'A' + 10); -+ return (0xFF); -+} -+ -+static void __init parse_uuid(const char *s) -+{ -+ int i; -+ __u8 j, k; -+ -+ if (strlen(s) != 36 || s[8] != '-' || s[13] != '-' || -+ s[18] != '-' || s[23] != '-') -+ goto bad_uuid; -+ for (i = 0; i < 16; i++) { -+ if (*s == '-') -+ ++s; -+ j = fromhex(*s++); -+ k = fromhex(*s++); -+ if (j == 0xFF || k == 0xFF) -+ goto bad_uuid; -+ root_dev_uuid[i] = (j << 4) | k; -+ } -+ return; -+ bad_uuid: -+ /* we cannot panic here, defer */ -+ root_dev_type = 3; -+} -+ -+/* from drivers/md/md.c */ -+static void __init initcode_bi_complete(struct bio *bio, int error) -+{ -+ complete((struct completion*)bio->bi_private); -+} -+ -+static int __init initcode_sync_page_read(struct block_device *bdev, -+ sector_t sector, int size, struct page *page) -+{ -+ struct bio *bio = bio_alloc(GFP_NOIO, 1); -+ struct completion event; -+ int ret, rw = READ; -+ -+ rw |= REQ_SYNC; -+ -+ bio->bi_bdev = bdev; -+ bio->bi_iter.bi_sector = sector; -+ bio_add_page(bio, page, size, 0); -+ init_completion(&event); -+ bio->bi_private = &event; -+ bio->bi_end_io = initcode_bi_complete; -+ submit_bio(rw, bio); -+ wait_for_completion(&event); -+ -+ ret = test_bit(BIO_UPTODATE, &bio->bi_flags); -+ bio_put(bio); -+ /* 0 = failure */ -+ return ret; -+} -+ -+/* most of this taken from fs/ext2/super.c */ -+static int __init check_dev(struct gendisk *thedisk, dev_t devt, -+ int blocksize, struct page *page) -+{ -+ struct ext2_super_block * es; -+ struct block_device *bdev; -+ unsigned long sb_block = 1; -+ unsigned long logic_sb_block; -+ unsigned long offset = 0; -+ int rv = /* not found */ 0; -+ char bff[22]; -+ -+ bdev = bdget(devt); -+ if (blkdev_get(bdev, FMODE_READ, NULL)) { -+ printk(KERN_ERR "VFS: opening block device %s failed!\n", -+ format_dev_t(bff, devt)); -+ return (0); -+ } -+ -+ if (blocksize != BLOCK_SIZE) { -+ logic_sb_block = (sb_block*BLOCK_SIZE) / blocksize; -+ offset = (sb_block*BLOCK_SIZE) % blocksize; -+ } else { -+ logic_sb_block = sb_block; -+ } -+ -+// printk(KERN_ERR "D: attempting to read %d @%lu from " -+// "bdev %p devt %08X %s\n", blocksize, logic_sb_block, -+// bdev, devt, format_dev_t(bff, devt)); -+ if (!initcode_sync_page_read(bdev, logic_sb_block, blocksize, page)) { -+// printk(KERN_ERR "D: failed!\n"); -+ goto out; -+ } -+ es = (struct ext2_super_block *)(((char *)page_address(page)) + offset); -+ if (le16_to_cpu(es->s_magic) == EXT2_SUPER_MAGIC) { -+// printk(KERN_ERR "D: has uuid " -+// "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n", -+// es->s_uuid[0], es->s_uuid[1], es->s_uuid[2], es->s_uuid[3], -+// es->s_uuid[4], es->s_uuid[5], es->s_uuid[6], es->s_uuid[7], -+// es->s_uuid[8], es->s_uuid[9], es->s_uuid[10], es->s_uuid[11], -+// es->s_uuid[12], es->s_uuid[13], es->s_uuid[14], es->s_uuid[15]); -+ if (!memcmp(es->s_uuid, root_dev_uuid, 16)) -+ rv = /* found */ 1; -+ } -+// else printk(KERN_ERR "D: bad ext2fs magic\n"); -+ out: -+ blkdev_put(bdev, FMODE_READ); -+ return (rv); -+} -+#endif /* CONFIG_EXT2_FS for UUID support */ -+ - static int __init load_ramdisk(char *str) - { - rd_doload = simple_strtol(str,NULL,0) & 3; -@@ -289,6 +416,13 @@ - static int __init root_dev_setup(char *line) - { - strlcpy(saved_root_name, line, sizeof(saved_root_name)); -+#ifdef CONFIG_EXT2_FS -+ root_dev_type = 0; -+ if (!strncmp(line, "UUID=", 5)) { -+ root_dev_type = 1; -+ parse_uuid(line + 5); -+ } -+#endif /* CONFIG_EXT2_FS for UUID support */ - return 1; - } - -@@ -505,6 +639,83 @@ - - void __init mount_root(void) - { -+#ifdef CONFIG_EXT2_FS -+ /* UUID support */ -+// printk_all_partitions(); -+ if (root_dev_type == 1) { -+ int blocksize; -+ -+ /* from block/genhd.c printk_all_partitions */ -+ struct class_dev_iter iter; -+ struct device *dev; -+ -+ /* from drivers/md/md.c */ -+ struct page *sb_page; -+ -+ if (!(sb_page = alloc_page(GFP_KERNEL))) { -+ printk(KERN_ERR "VFS: no memory for bio page\n"); -+ goto nomemforbio; -+ } -+ -+// printk(KERN_ERR "D: root is: " -+// "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n", -+// root_dev_uuid[0], root_dev_uuid[1], root_dev_uuid[2], root_dev_uuid[3], -+// root_dev_uuid[4], root_dev_uuid[5], root_dev_uuid[6], root_dev_uuid[7], -+// root_dev_uuid[8], root_dev_uuid[9], root_dev_uuid[10], root_dev_uuid[11], -+// root_dev_uuid[12], root_dev_uuid[13], root_dev_uuid[14], root_dev_uuid[15]); -+ /* from block/genhd.c printk_all_partitions */ -+// printk(KERN_ERR "D: begin iter\n"); -+ class_dev_iter_init(&iter, &block_class, NULL, &disk_type); -+ while (root_dev_type && (dev = class_dev_iter_next(&iter))) { -+// char bff[22]; -+ struct gendisk *disk = dev_to_disk(dev); -+ struct disk_part_iter piter; -+ struct hd_struct *part; -+ if (get_capacity(disk) == 0 || -+ (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO)) { -+// printk(KERN_ERR "D: ignoring\n"); -+ continue; -+ } -+ blocksize = queue_logical_block_size(disk->queue); -+// printk(KERN_ERR "D: gendisk, blocksize %d " -+// "name '%s' devt %08X %s #part %d\n", blocksize, -+// disk->disk_name, dev->devt, -+// format_dev_t(bff, dev->devt), -+// disk_max_parts(disk)); -+ disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0); -+ while (root_dev_type && (part = disk_part_iter_next(&piter))) { -+ /* avoid empty or too small partitions */ -+// printk(KERN_ERR "D: part #%d start %llu " -+// "nr %llu\n", part->partno, -+// (__u64)part->start_sect, -+// (__u64)part->nr_sects); -+ if (part->nr_sects < 8) -+ continue; -+ if (check_dev(disk, MKDEV(MAJOR(dev->devt), -+ MINOR(dev->devt) + part->partno), -+ blocksize, sb_page)) { -+ ROOT_DEV = part_devt(part); -+// printk(KERN_ERR "D: got match!\n"); -+ // comment out below for debugging -+ root_dev_type = 0; -+ } -+ } -+ disk_part_iter_exit(&piter); -+ } -+// printk(KERN_ERR "D: end iter\n"); -+ class_dev_iter_exit(&iter); -+ put_page(sb_page); -+ } -+ nomemforbio: -+ if (root_dev_type == 1) -+ printk(KERN_ERR "VFS: Unable to find root by UUID %s.\n", -+ saved_root_name + 5); -+ else if (root_dev_type == 3) -+ /* execute deferred panic from parse_uuid */ -+ panic("Badly formatted UUID %s was supplied as kernel " -+ "parameter root", saved_root_name + 5); -+#endif /* CONFIG_EXT2_FS for UUID support */ -+ - #ifdef CONFIG_ROOT_NFS - if (ROOT_DEV == Root_NFS) { - if (mount_nfs_root()) diff --git a/target/linux/patches/3.15-rc7/wlan-cf.patch b/target/linux/patches/3.15-rc7/wlan-cf.patch deleted file mode 100644 index fc20759e2..000000000 --- a/target/linux/patches/3.15-rc7/wlan-cf.patch +++ /dev/null @@ -1,11 +0,0 @@ -diff -Nur linux-2.6.39.orig/drivers/net/wireless/hostap/hostap_cs.c linux-2.6.39/drivers/net/wireless/hostap/hostap_cs.c ---- linux-2.6.39.orig/drivers/net/wireless/hostap/hostap_cs.c 2011-05-19 06:06:34.000000000 +0200 -+++ linux-2.6.39/drivers/net/wireless/hostap/hostap_cs.c 2011-09-12 02:46:26.987984145 +0200 -@@ -623,6 +623,7 @@ - static struct pcmcia_device_id hostap_cs_ids[] = { - PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7100), - PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7300), -+ PCMCIA_DEVICE_MANF_CARD(0x0004, 0x2003), - PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0777), - PCMCIA_DEVICE_MANF_CARD(0x0126, 0x8000), - PCMCIA_DEVICE_MANF_CARD(0x0138, 0x0002), diff --git a/target/linux/patches/3.15-rc7/xargs.patch b/target/linux/patches/3.15-rc7/xargs.patch deleted file mode 100644 index 2c7b3df59..000000000 --- a/target/linux/patches/3.15-rc7/xargs.patch +++ /dev/null @@ -1,12 +0,0 @@ -diff -Nur linux-3.12.6.orig/scripts/Makefile.modpost linux-3.12.6/scripts/Makefile.modpost ---- linux-3.12.6.orig/scripts/Makefile.modpost 2013-12-20 16:51:33.000000000 +0100 -+++ linux-3.12.6/scripts/Makefile.modpost 2014-01-25 14:55:33.000000000 +0100 -@@ -60,7 +60,7 @@ - modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers - - # Step 1), find all modules listed in $(MODVERDIR)/ --MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs -r grep -h '\.ko$$' | sort -u -+MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs grep -h '\.ko$$' | sort -u - __modules := $(shell $(MODLISTCMD)) - modules := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o))) - diff --git a/target/linux/patches/3.15-rc8/bsd-compatibility.patch b/target/linux/patches/3.15-rc8/bsd-compatibility.patch new file mode 100644 index 000000000..b954b658f --- /dev/null +++ b/target/linux/patches/3.15-rc8/bsd-compatibility.patch @@ -0,0 +1,2538 @@ +diff -Nur linux-3.11.5.orig/scripts/Makefile.lib linux-3.11.5/scripts/Makefile.lib +--- linux-3.11.5.orig/scripts/Makefile.lib 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/scripts/Makefile.lib 2013-10-16 18:09:31.000000000 +0200 +@@ -281,7 +281,12 @@ + size_append = printf $(shell \ + dec_size=0; \ + for F in $1; do \ +- fsize=$$(stat -c "%s" $$F); \ ++ if stat -qs .>/dev/null 2>&1; then \ ++ statcmd='stat -f %z'; \ ++ else \ ++ statcmd='stat -c %s'; \ ++ fi; \ ++ fsize=$$($$statcmd $$F); \ + dec_size=$$(expr $$dec_size + $$fsize); \ + done; \ + printf "%08x\n" $$dec_size | \ +diff -Nur linux-3.11.5.orig/scripts/mod/mk_elfconfig.c linux-3.11.5/scripts/mod/mk_elfconfig.c +--- linux-3.11.5.orig/scripts/mod/mk_elfconfig.c 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/scripts/mod/mk_elfconfig.c 2013-10-16 18:09:31.000000000 +0200 +@@ -1,7 +1,18 @@ + #include + #include + #include +-#include ++ ++#define EI_NIDENT (16) ++#define ELFMAG "\177ELF" ++ ++#define SELFMAG 4 ++#define EI_CLASS 4 ++#define ELFCLASS32 1 /* 32-bit objects */ ++#define ELFCLASS64 2 /* 64-bit objects */ ++ ++#define EI_DATA 5 /* Data encoding byte index */ ++#define ELFDATA2LSB 1 /* 2's complement, little endian */ ++#define ELFDATA2MSB 2 /* 2's complement, big endian */ + + int + main(int argc, char **argv) +diff -Nur linux-3.11.5.orig/scripts/mod/modpost.h linux-3.11.5/scripts/mod/modpost.h +--- linux-3.11.5.orig/scripts/mod/modpost.h 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/scripts/mod/modpost.h 2013-10-16 18:09:31.000000000 +0200 +@@ -7,7 +7,2453 @@ + #include + #include + #include +-#include ++ ++ ++/* This file defines standard ELF types, structures, and macros. ++ Copyright (C) 1995-1999,2000,2001,2002,2003 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, write to the Free ++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA ++ 02111-1307 USA. */ ++ ++#ifndef _ELF_H ++#define _ELF_H 1 ++ ++__BEGIN_DECLS ++ ++/* Standard ELF types. */ ++ ++#include ++ ++/* Type for a 16-bit quantity. */ ++typedef uint16_t Elf32_Half; ++typedef uint16_t Elf64_Half; ++ ++/* Types for signed and unsigned 32-bit quantities. */ ++typedef uint32_t Elf32_Word; ++typedef int32_t Elf32_Sword; ++typedef uint32_t Elf64_Word; ++typedef int32_t Elf64_Sword; ++ ++/* Types for signed and unsigned 64-bit quantities. */ ++typedef uint64_t Elf32_Xword; ++typedef int64_t Elf32_Sxword; ++typedef uint64_t Elf64_Xword; ++typedef int64_t Elf64_Sxword; ++ ++/* Type of addresses. */ ++typedef uint32_t Elf32_Addr; ++typedef uint64_t Elf64_Addr; ++ ++/* Type of file offsets. */ ++typedef uint32_t Elf32_Off; ++typedef uint64_t Elf64_Off; ++ ++/* Type for section indices, which are 16-bit quantities. */ ++typedef uint16_t Elf32_Section; ++typedef uint16_t Elf64_Section; ++ ++/* Type for version symbol information. */ ++typedef Elf32_Half Elf32_Versym; ++typedef Elf64_Half Elf64_Versym; ++ ++ ++/* The ELF file header. This appears at the start of every ELF file. */ ++ ++#define EI_NIDENT (16) ++ ++typedef struct ++{ ++ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ ++ Elf32_Half e_type; /* Object file type */ ++ Elf32_Half e_machine; /* Architecture */ ++ Elf32_Word e_version; /* Object file version */ ++ Elf32_Addr e_entry; /* Entry point virtual address */ ++ Elf32_Off e_phoff; /* Program header table file offset */ ++ Elf32_Off e_shoff; /* Section header table file offset */ ++ Elf32_Word e_flags; /* Processor-specific flags */ ++ Elf32_Half e_ehsize; /* ELF header size in bytes */ ++ Elf32_Half e_phentsize; /* Program header table entry size */ ++ Elf32_Half e_phnum; /* Program header table entry count */ ++ Elf32_Half e_shentsize; /* Section header table entry size */ ++ Elf32_Half e_shnum; /* Section header table entry count */ ++ Elf32_Half e_shstrndx; /* Section header string table index */ ++} Elf32_Ehdr; ++ ++typedef struct ++{ ++ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ ++ Elf64_Half e_type; /* Object file type */ ++ Elf64_Half e_machine; /* Architecture */ ++ Elf64_Word e_version; /* Object file version */ ++ Elf64_Addr e_entry; /* Entry point virtual address */ ++ Elf64_Off e_phoff; /* Program header table file offset */ ++ Elf64_Off e_shoff; /* Section header table file offset */ ++ Elf64_Word e_flags; /* Processor-specific flags */ ++ Elf64_Half e_ehsize; /* ELF header size in bytes */ ++ Elf64_Half e_phentsize; /* Program header table entry size */ ++ Elf64_Half e_phnum; /* Program header table entry count */ ++ Elf64_Half e_shentsize; /* Section header table entry size */ ++ Elf64_Half e_shnum; /* Section header table entry count */ ++ Elf64_Half e_shstrndx; /* Section header string table index */ ++} Elf64_Ehdr; ++ ++/* Fields in the e_ident array. The EI_* macros are indices into the ++ array. The macros under each EI_* macro are the values the byte ++ may have. */ ++ ++#define EI_MAG0 0 /* File identification byte 0 index */ ++#define ELFMAG0 0x7f /* Magic number byte 0 */ ++ ++#define EI_MAG1 1 /* File identification byte 1 index */ ++#define ELFMAG1 'E' /* Magic number byte 1 */ ++ ++#define EI_MAG2 2 /* File identification byte 2 index */ ++#define ELFMAG2 'L' /* Magic number byte 2 */ ++ ++#define EI_MAG3 3 /* File identification byte 3 index */ ++#define ELFMAG3 'F' /* Magic number byte 3 */ ++ ++/* Conglomeration of the identification bytes, for easy testing as a word. */ ++#define ELFMAG "\177ELF" ++#define SELFMAG 4 ++ ++#define EI_CLASS 4 /* File class byte index */ ++#define ELFCLASSNONE 0 /* Invalid class */ ++#define ELFCLASS32 1 /* 32-bit objects */ ++#define ELFCLASS64 2 /* 64-bit objects */ ++#define ELFCLASSNUM 3 ++ ++#define EI_DATA 5 /* Data encoding byte index */ ++#define ELFDATANONE 0 /* Invalid data encoding */ ++#define ELFDATA2LSB 1 /* 2's complement, little endian */ ++#define ELFDATA2MSB 2 /* 2's complement, big endian */ ++#define ELFDATANUM 3 ++ ++#define EI_VERSION 6 /* File version byte index */ ++ /* Value must be EV_CURRENT */ ++ ++#define EI_OSABI 7 /* OS ABI identification */ ++#define ELFOSABI_NONE 0 /* UNIX System V ABI */ ++#define ELFOSABI_SYSV 0 /* Alias. */ ++#define ELFOSABI_HPUX 1 /* HP-UX */ ++#define ELFOSABI_NETBSD 2 /* NetBSD. */ ++#define ELFOSABI_LINUX 3 /* Linux. */ ++#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ ++#define ELFOSABI_AIX 7 /* IBM AIX. */ ++#define ELFOSABI_IRIX 8 /* SGI Irix. */ ++#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ ++#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ ++#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ ++#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ ++#define ELFOSABI_ARM 97 /* ARM */ ++#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ ++ ++#define EI_ABIVERSION 8 /* ABI version */ ++ ++#define EI_PAD 9 /* Byte index of padding bytes */ ++ ++/* Legal values for e_type (object file type). */ ++ ++#define ET_NONE 0 /* No file type */ ++#define ET_REL 1 /* Relocatable file */ ++#define ET_EXEC 2 /* Executable file */ ++#define ET_DYN 3 /* Shared object file */ ++#define ET_CORE 4 /* Core file */ ++#define ET_NUM 5 /* Number of defined types */ ++#define ET_LOOS 0xfe00 /* OS-specific range start */ ++#define ET_HIOS 0xfeff /* OS-specific range end */ ++#define ET_LOPROC 0xff00 /* Processor-specific range start */ ++#define ET_HIPROC 0xffff /* Processor-specific range end */ ++ ++/* Legal values for e_machine (architecture). */ ++ ++#define EM_NONE 0 /* No machine */ ++#define EM_M32 1 /* AT&T WE 32100 */ ++#define EM_SPARC 2 /* SUN SPARC */ ++#define EM_386 3 /* Intel 80386 */ ++#define EM_68K 4 /* Motorola m68k family */ ++#define EM_88K 5 /* Motorola m88k family */ ++#define EM_860 7 /* Intel 80860 */ ++#define EM_MIPS 8 /* MIPS R3000 big-endian */ ++#define EM_S370 9 /* IBM System/370 */ ++#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */ ++ ++#define EM_PARISC 15 /* HPPA */ ++#define EM_VPP500 17 /* Fujitsu VPP500 */ ++#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ ++#define EM_960 19 /* Intel 80960 */ ++#define EM_PPC 20 /* PowerPC */ ++#define EM_PPC64 21 /* PowerPC 64-bit */ ++#define EM_S390 22 /* IBM S390 */ ++ ++#define EM_V800 36 /* NEC V800 series */ ++#define EM_FR20 37 /* Fujitsu FR20 */ ++#define EM_RH32 38 /* TRW RH-32 */ ++#define EM_RCE 39 /* Motorola RCE */ ++#define EM_ARM 40 /* ARM */ ++#define EM_FAKE_ALPHA 41 /* Digital Alpha */ ++#define EM_SH 42 /* Hitachi SH */ ++#define EM_SPARCV9 43 /* SPARC v9 64-bit */ ++#define EM_TRICORE 44 /* Siemens Tricore */ ++#define EM_ARC 45 /* Argonaut RISC Core */ ++#define EM_H8_300 46 /* Hitachi H8/300 */ ++#define EM_H8_300H 47 /* Hitachi H8/300H */ ++#define EM_H8S 48 /* Hitachi H8S */ ++#define EM_H8_500 49 /* Hitachi H8/500 */ ++#define EM_IA_64 50 /* Intel Merced */ ++#define EM_MIPS_X 51 /* Stanford MIPS-X */ ++#define EM_COLDFIRE 52 /* Motorola Coldfire */ ++#define EM_68HC12 53 /* Motorola M68HC12 */ ++#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ ++#define EM_PCP 55 /* Siemens PCP */ ++#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ ++#define EM_NDR1 57 /* Denso NDR1 microprocessor */ ++#define EM_STARCORE 58 /* Motorola Start*Core processor */ ++#define EM_ME16 59 /* Toyota ME16 processor */ ++#define EM_ST100 60 /* STMicroelectronic ST100 processor */ ++#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ ++#define EM_X86_64 62 /* AMD x86-64 architecture */ ++#define EM_PDSP 63 /* Sony DSP Processor */ ++ ++#define EM_FX66 66 /* Siemens FX66 microcontroller */ ++#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ ++#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ ++#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ ++#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ ++#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ ++#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ ++#define EM_SVX 73 /* Silicon Graphics SVx */ ++#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ ++#define EM_VAX 75 /* Digital VAX */ ++#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ ++#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ ++#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ ++#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ ++#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ ++#define EM_HUANY 81 /* Harvard University machine-independent object files */ ++#define EM_PRISM 82 /* SiTera Prism */ ++#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ ++#define EM_FR30 84 /* Fujitsu FR30 */ ++#define EM_D10V 85 /* Mitsubishi D10V */ ++#define EM_D30V 86 /* Mitsubishi D30V */ ++#define EM_V850 87 /* NEC v850 */ ++#define EM_M32R 88 /* Mitsubishi M32R */ ++#define EM_MN10300 89 /* Matsushita MN10300 */ ++#define EM_MN10200 90 /* Matsushita MN10200 */ ++#define EM_PJ 91 /* picoJava */ ++#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ ++#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ ++#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ ++#define EM_NUM 95 ++ ++/* If it is necessary to assign new unofficial EM_* values, please ++ pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the ++ chances of collision with official or non-GNU unofficial values. */ ++ ++#define EM_ALPHA 0x9026 ++ ++/* Legal values for e_version (version). */ ++ ++#define EV_NONE 0 /* Invalid ELF version */ ++#define EV_CURRENT 1 /* Current version */ ++#define EV_NUM 2 ++ ++/* Section header. */ ++ ++typedef struct ++{ ++ Elf32_Word sh_name; /* Section name (string tbl index) */ ++ Elf32_Word sh_type; /* Section type */ ++ Elf32_Word sh_flags; /* Section flags */ ++ Elf32_Addr sh_addr; /* Section virtual addr at execution */ ++ Elf32_Off sh_offset; /* Section file offset */ ++ Elf32_Word sh_size; /* Section size in bytes */ ++ Elf32_Word sh_link; /* Link to another section */ ++ Elf32_Word sh_info; /* Additional section information */ ++ Elf32_Word sh_addralign; /* Section alignment */ ++ Elf32_Word sh_entsize; /* Entry size if section holds table */ ++} Elf32_Shdr; ++ ++typedef struct ++{ ++ Elf64_Word sh_name; /* Section name (string tbl index) */ ++ Elf64_Word sh_type; /* Section type */ ++ Elf64_Xword sh_flags; /* Section flags */ ++ Elf64_Addr sh_addr; /* Section virtual addr at execution */ ++ Elf64_Off sh_offset; /* Section file offset */ ++ Elf64_Xword sh_size; /* Section size in bytes */ ++ Elf64_Word sh_link; /* Link to another section */ ++ Elf64_Word sh_info; /* Additional section information */ ++ Elf64_Xword sh_addralign; /* Section alignment */ ++ Elf64_Xword sh_entsize; /* Entry size if section holds table */ ++} Elf64_Shdr; ++ ++/* Special section indices. */ ++ ++#define SHN_UNDEF 0 /* Undefined section */ ++#define SHN_LORESERVE 0xff00 /* Start of reserved indices */ ++#define SHN_LOPROC 0xff00 /* Start of processor-specific */ ++#define SHN_HIPROC 0xff1f /* End of processor-specific */ ++#define SHN_LOOS 0xff20 /* Start of OS-specific */ ++#define SHN_HIOS 0xff3f /* End of OS-specific */ ++#define SHN_ABS 0xfff1 /* Associated symbol is absolute */ ++#define SHN_COMMON 0xfff2 /* Associated symbol is common */ ++#define SHN_XINDEX 0xffff /* Index is in extra table. */ ++#define SHN_HIRESERVE 0xffff /* End of reserved indices */ ++ ++/* Legal values for sh_type (section type). */ ++ ++#define SHT_NULL 0 /* Section header table entry unused */ ++#define SHT_PROGBITS 1 /* Program data */ ++#define SHT_SYMTAB 2 /* Symbol table */ ++#define SHT_STRTAB 3 /* String table */ ++#define SHT_RELA 4 /* Relocation entries with addends */ ++#define SHT_HASH 5 /* Symbol hash table */ ++#define SHT_DYNAMIC 6 /* Dynamic linking information */ ++#define SHT_NOTE 7 /* Notes */ ++#define SHT_NOBITS 8 /* Program space with no data (bss) */ ++#define SHT_REL 9 /* Relocation entries, no addends */ ++#define SHT_SHLIB 10 /* Reserved */ ++#define SHT_DYNSYM 11 /* Dynamic linker symbol table */ ++#define SHT_INIT_ARRAY 14 /* Array of constructors */ ++#define SHT_FINI_ARRAY 15 /* Array of destructors */ ++#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ ++#define SHT_GROUP 17 /* Section group */ ++#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ ++#define SHT_NUM 19 /* Number of defined types. */ ++#define SHT_LOOS 0x60000000 /* Start OS-specific */ ++#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ ++#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ ++#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ ++#define SHT_SUNW_move 0x6ffffffa ++#define SHT_SUNW_COMDAT 0x6ffffffb ++#define SHT_SUNW_syminfo 0x6ffffffc ++#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ ++#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ ++#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ ++#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ ++#define SHT_HIOS 0x6fffffff /* End OS-specific type */ ++#define SHT_LOPROC 0x70000000 /* Start of processor-specific */ ++#define SHT_HIPROC 0x7fffffff /* End of processor-specific */ ++#define SHT_LOUSER 0x80000000 /* Start of application-specific */ ++#define SHT_HIUSER 0x8fffffff /* End of application-specific */ ++ ++/* Legal values for sh_flags (section flags). */ ++ ++#define SHF_WRITE (1 << 0) /* Writable */ ++#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ ++#define SHF_EXECINSTR (1 << 2) /* Executable */ ++#define SHF_MERGE (1 << 4) /* Might be merged */ ++#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */ ++#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */ ++#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */ ++#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling ++ required */ ++#define SHF_GROUP (1 << 9) /* Section is member of a group. */ ++#define SHF_TLS (1 << 10) /* Section hold thread-local data. */ ++#define SHF_MASKOS 0x0ff00000 /* OS-specific. */ ++#define SHF_MASKPROC 0xf0000000 /* Processor-specific */ ++ ++/* Section group handling. */ ++#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */ ++ ++/* Symbol table entry. */ ++ ++typedef struct ++{ ++ Elf32_Word st_name; /* Symbol name (string tbl index) */ ++ Elf32_Addr st_value; /* Symbol value */ ++ Elf32_Word st_size; /* Symbol size */ ++ unsigned char st_info; /* Symbol type and binding */ ++ unsigned char st_other; /* Symbol visibility */ ++ Elf32_Section st_shndx; /* Section index */ ++} Elf32_Sym; ++ ++typedef struct ++{ ++ Elf64_Word st_name; /* Symbol name (string tbl index) */ ++ unsigned char st_info; /* Symbol type and binding */ ++ unsigned char st_other; /* Symbol visibility */ ++ Elf64_Section st_shndx; /* Section index */ ++ Elf64_Addr st_value; /* Symbol value */ ++ Elf64_Xword st_size; /* Symbol size */ ++} Elf64_Sym; ++ ++/* The syminfo section if available contains additional information about ++ every dynamic symbol. */ ++ ++typedef struct ++{ ++ Elf32_Half si_boundto; /* Direct bindings, symbol bound to */ ++ Elf32_Half si_flags; /* Per symbol flags */ ++} Elf32_Syminfo; ++ ++typedef struct ++{ ++ Elf64_Half si_boundto; /* Direct bindings, symbol bound to */ ++ Elf64_Half si_flags; /* Per symbol flags */ ++} Elf64_Syminfo; ++ ++/* Possible values for si_boundto. */ ++#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ ++#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ ++#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ ++ ++/* Possible bitmasks for si_flags. */ ++#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ ++#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ ++#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ ++#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy ++ loaded */ ++/* Syminfo version values. */ ++#define SYMINFO_NONE 0 ++#define SYMINFO_CURRENT 1 ++#define SYMINFO_NUM 2 ++ ++ ++/* How to extract and insert information held in the st_info field. */ ++ ++#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) ++#define ELF32_ST_TYPE(val) ((val) & 0xf) ++#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) ++ ++/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ ++#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) ++#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) ++#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) ++ ++/* Legal values for ST_BIND subfield of st_info (symbol binding). */ ++ ++#define STB_LOCAL 0 /* Local symbol */ ++#define STB_GLOBAL 1 /* Global symbol */ ++#define STB_WEAK 2 /* Weak symbol */ ++#define STB_NUM 3 /* Number of defined types. */ ++#define STB_LOOS 10 /* Start of OS-specific */ ++#define STB_HIOS 12 /* End of OS-specific */ ++#define STB_LOPROC 13 /* Start of processor-specific */ ++#define STB_HIPROC 15 /* End of processor-specific */ ++ ++/* Legal values for ST_TYPE subfield of st_info (symbol type). */ ++ ++#define STT_NOTYPE 0 /* Symbol type is unspecified */ ++#define STT_OBJECT 1 /* Symbol is a data object */ ++#define STT_FUNC 2 /* Symbol is a code object */ ++#define STT_SECTION 3 /* Symbol associated with a section */ ++#define STT_FILE 4 /* Symbol's name is file name */ ++#define STT_COMMON 5 /* Symbol is a common data object */ ++#define STT_TLS 6 /* Symbol is thread-local data object*/ ++#define STT_NUM 7 /* Number of defined types. */ ++#define STT_LOOS 10 /* Start of OS-specific */ ++#define STT_HIOS 12 /* End of OS-specific */ ++#define STT_LOPROC 13 /* Start of processor-specific */ ++#define STT_HIPROC 15 /* End of processor-specific */ ++ ++ ++/* Symbol table indices are found in the hash buckets and chain table ++ of a symbol hash table section. This special index value indicates ++ the end of a chain, meaning no further symbols are found in that bucket. */ ++ ++#define STN_UNDEF 0 /* End of a chain. */ ++ ++ ++/* How to extract and insert information held in the st_other field. */ ++ ++#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) ++ ++/* For ELF64 the definitions are the same. */ ++#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) ++ ++/* Symbol visibility specification encoded in the st_other field. */ ++#define STV_DEFAULT 0 /* Default symbol visibility rules */ ++#define STV_INTERNAL 1 /* Processor specific hidden class */ ++#define STV_HIDDEN 2 /* Sym unavailable in other modules */ ++#define STV_PROTECTED 3 /* Not preemptible, not exported */ ++ ++ ++/* Relocation table entry without addend (in section of type SHT_REL). */ ++ ++typedef struct ++{ ++ Elf32_Addr r_offset; /* Address */ ++ Elf32_Word r_info; /* Relocation type and symbol index */ ++} Elf32_Rel; ++ ++/* I have seen two different definitions of the Elf64_Rel and ++ Elf64_Rela structures, so we'll leave them out until Novell (or ++ whoever) gets their act together. */ ++/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ ++ ++typedef struct ++{ ++ Elf64_Addr r_offset; /* Address */ ++ Elf64_Xword r_info; /* Relocation type and symbol index */ ++} Elf64_Rel; ++ ++/* Relocation table entry with addend (in section of type SHT_RELA). */ ++ ++typedef struct ++{ ++ Elf32_Addr r_offset; /* Address */ ++ Elf32_Word r_info; /* Relocation type and symbol index */ ++ Elf32_Sword r_addend; /* Addend */ ++} Elf32_Rela; ++ ++typedef struct ++{ ++ Elf64_Addr r_offset; /* Address */ ++ Elf64_Xword r_info; /* Relocation type and symbol index */ ++ Elf64_Sxword r_addend; /* Addend */ ++} Elf64_Rela; ++ ++/* How to extract and insert information held in the r_info field. */ ++ ++#define ELF32_R_SYM(val) ((val) >> 8) ++#define ELF32_R_TYPE(val) ((val) & 0xff) ++#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) ++ ++#define ELF64_R_SYM(i) ((i) >> 32) ++#define ELF64_R_TYPE(i) ((i) & 0xffffffff) ++#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) ++ ++/* Program segment header. */ ++ ++typedef struct ++{ ++ Elf32_Word p_type; /* Segment type */ ++ Elf32_Off p_offset; /* Segment file offset */ ++ Elf32_Addr p_vaddr; /* Segment virtual address */ ++ Elf32_Addr p_paddr; /* Segment physical address */ ++ Elf32_Word p_filesz; /* Segment size in file */ ++ Elf32_Word p_memsz; /* Segment size in memory */ ++ Elf32_Word p_flags; /* Segment flags */ ++ Elf32_Word p_align; /* Segment alignment */ ++} Elf32_Phdr; ++ ++typedef struct ++{ ++ Elf64_Word p_type; /* Segment type */ ++ Elf64_Word p_flags; /* Segment flags */ ++ Elf64_Off p_offset; /* Segment file offset */ ++ Elf64_Addr p_vaddr; /* Segment virtual address */ ++ Elf64_Addr p_paddr; /* Segment physical address */ ++ Elf64_Xword p_filesz; /* Segment size in file */ ++ Elf64_Xword p_memsz; /* Segment size in memory */ ++ Elf64_Xword p_align; /* Segment alignment */ ++} Elf64_Phdr; ++ ++/* Legal values for p_type (segment type). */ ++ ++#define PT_NULL 0 /* Program header table entry unused */ ++#define PT_LOAD 1 /* Loadable program segment */ ++#define PT_DYNAMIC 2 /* Dynamic linking information */ ++#define PT_INTERP 3 /* Program interpreter */ ++#define PT_NOTE 4 /* Auxiliary information */ ++#define PT_SHLIB 5 /* Reserved */ ++#define PT_PHDR 6 /* Entry for header table itself */ ++#define PT_TLS 7 /* Thread-local storage segment */ ++#define PT_NUM 8 /* Number of defined types */ ++#define PT_LOOS 0x60000000 /* Start of OS-specific */ ++#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */ ++#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */ ++#define PT_LOSUNW 0x6ffffffa ++#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ ++#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */ ++#define PT_HISUNW 0x6fffffff ++#define PT_HIOS 0x6fffffff /* End of OS-specific */ ++#define PT_LOPROC 0x70000000 /* Start of processor-specific */ ++#define PT_HIPROC 0x7fffffff /* End of processor-specific */ ++ ++/* Legal values for p_flags (segment flags). */ ++ ++#define PF_X (1 << 0) /* Segment is executable */ ++#define PF_W (1 << 1) /* Segment is writable */ ++#define PF_R (1 << 2) /* Segment is readable */ ++#define PF_MASKOS 0x0ff00000 /* OS-specific */ ++#define PF_MASKPROC 0xf0000000 /* Processor-specific */ ++ ++/* Legal values for note segment descriptor types for core files. */ ++ ++#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ ++#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ ++#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ ++#define NT_PRXREG 4 /* Contains copy of prxregset struct */ ++#define NT_TASKSTRUCT 4 /* Contains copy of task structure */ ++#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */ ++#define NT_AUXV 6 /* Contains copy of auxv array */ ++#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */ ++#define NT_ASRS 8 /* Contains copy of asrset struct */ ++#define NT_PSTATUS 10 /* Contains copy of pstatus struct */ ++#define NT_PSINFO 13 /* Contains copy of psinfo struct */ ++#define NT_PRCRED 14 /* Contains copy of prcred struct */ ++#define NT_UTSNAME 15 /* Contains copy of utsname struct */ ++#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */ ++#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */ ++#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct*/ ++ ++/* Legal values for the note segment descriptor types for object files. */ ++ ++#define NT_VERSION 1 /* Contains a version string. */ ++ ++ ++/* Dynamic section entry. */ ++ ++typedef struct ++{ ++ Elf32_Sword d_tag; /* Dynamic entry type */ ++ union ++ { ++ Elf32_Word d_val; /* Integer value */ ++ Elf32_Addr d_ptr; /* Address value */ ++ } d_un; ++} Elf32_Dyn; ++ ++typedef struct ++{ ++ Elf64_Sxword d_tag; /* Dynamic entry type */ ++ union ++ { ++ Elf64_Xword d_val; /* Integer value */ ++ Elf64_Addr d_ptr; /* Address value */ ++ } d_un; ++} Elf64_Dyn; ++ ++/* Legal values for d_tag (dynamic entry type). */ ++ ++#define DT_NULL 0 /* Marks end of dynamic section */ ++#define DT_NEEDED 1 /* Name of needed library */ ++#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ ++#define DT_PLTGOT 3 /* Processor defined value */ ++#define DT_HASH 4 /* Address of symbol hash table */ ++#define DT_STRTAB 5 /* Address of string table */ ++#define DT_SYMTAB 6 /* Address of symbol table */ ++#define DT_RELA 7 /* Address of Rela relocs */ ++#define DT_RELASZ 8 /* Total size of Rela relocs */ ++#define DT_RELAENT 9 /* Size of one Rela reloc */ ++#define DT_STRSZ 10 /* Size of string table */ ++#define DT_SYMENT 11 /* Size of one symbol table entry */ ++#define DT_INIT 12 /* Address of init function */ ++#define DT_FINI 13 /* Address of termination function */ ++#define DT_SONAME 14 /* Name of shared object */ ++#define DT_RPATH 15 /* Library search path (deprecated) */ ++#define DT_SYMBOLIC 16 /* Start symbol search here */ ++#define DT_REL 17 /* Address of Rel relocs */ ++#define DT_RELSZ 18 /* Total size of Rel relocs */ ++#define DT_RELENT 19 /* Size of one Rel reloc */ ++#define DT_PLTREL 20 /* Type of reloc in PLT */ ++#define DT_DEBUG 21 /* For debugging; unspecified */ ++#define DT_TEXTREL 22 /* Reloc might modify .text */ ++#define DT_JMPREL 23 /* Address of PLT relocs */ ++#define DT_BIND_NOW 24 /* Process relocations of object */ ++#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ ++#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ ++#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ ++#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ ++#define DT_RUNPATH 29 /* Library search path */ ++#define DT_FLAGS 30 /* Flags for the object being loaded */ ++#define DT_ENCODING 32 /* Start of encoded range */ ++#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ ++#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ ++#define DT_NUM 34 /* Number used */ ++#define DT_LOOS 0x6000000d /* Start of OS-specific */ ++#define DT_HIOS 0x6ffff000 /* End of OS-specific */ ++#define DT_LOPROC 0x70000000 /* Start of processor-specific */ ++#define DT_HIPROC 0x7fffffff /* End of processor-specific */ ++#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ ++ ++/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the ++ Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's ++ approach. */ ++#define DT_VALRNGLO 0x6ffffd00 ++#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ ++#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ ++#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ ++#define DT_CHECKSUM 0x6ffffdf8 ++#define DT_PLTPADSZ 0x6ffffdf9 ++#define DT_MOVEENT 0x6ffffdfa ++#define DT_MOVESZ 0x6ffffdfb ++#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ ++#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting ++ the following DT_* entry. */ ++#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ ++#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ ++#define DT_VALRNGHI 0x6ffffdff ++#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ ++#define DT_VALNUM 12 ++ ++/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the ++ Dyn.d_un.d_ptr field of the Elf*_Dyn structure. ++ ++ If any adjustment is made to the ELF object after it has been ++ built these entries will need to be adjusted. */ ++#define DT_ADDRRNGLO 0x6ffffe00 ++#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ ++#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ ++#define DT_CONFIG 0x6ffffefa /* Configuration information. */ ++#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ ++#define DT_AUDIT 0x6ffffefc /* Object auditing. */ ++#define DT_PLTPAD 0x6ffffefd /* PLT padding. */ ++#define DT_MOVETAB 0x6ffffefe /* Move table. */ ++#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ ++#define DT_ADDRRNGHI 0x6ffffeff ++#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ ++#define DT_ADDRNUM 10 ++ ++/* The versioning entry types. The next are defined as part of the ++ GNU extension. */ ++#define DT_VERSYM 0x6ffffff0 ++ ++#define DT_RELACOUNT 0x6ffffff9 ++#define DT_RELCOUNT 0x6ffffffa ++ ++/* These were chosen by Sun. */ ++#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ ++#define DT_VERDEF 0x6ffffffc /* Address of version definition ++ table */ ++#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ ++#define DT_VERNEED 0x6ffffffe /* Address of table with needed ++ versions */ ++#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ ++#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ ++#define DT_VERSIONTAGNUM 16 ++ ++/* Sun added these machine-independent extensions in the "processor-specific" ++ range. Be compatible. */ ++#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ ++#define DT_FILTER 0x7fffffff /* Shared object to get values from */ ++#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) ++#define DT_EXTRANUM 3 ++ ++/* Values of `d_un.d_val' in the DT_FLAGS entry. */ ++#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */ ++#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */ ++#define DF_TEXTREL 0x00000004 /* Object contains text relocations */ ++#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */ ++#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */ ++ ++/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 ++ entry in the dynamic section. */ ++#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */ ++#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */ ++#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */ ++#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/ ++#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/ ++#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/ ++#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */ ++#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */ ++#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */ ++#define DF_1_TRANS 0x00000200 ++#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */ ++#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */ ++#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */ ++#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/ ++#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ ++#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ ++#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ ++ ++/* Flags for the feature selection in DT_FEATURE_1. */ ++#define DTF_1_PARINIT 0x00000001 ++#define DTF_1_CONFEXP 0x00000002 ++ ++/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */ ++#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */ ++#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not ++ generally available. */ ++ ++/* Version definition sections. */ ++ ++typedef struct ++{ ++ Elf32_Half vd_version; /* Version revision */ ++ Elf32_Half vd_flags; /* Version information */ ++ Elf32_Half vd_ndx; /* Version Index */ ++ Elf32_Half vd_cnt; /* Number of associated aux entries */ ++ Elf32_Word vd_hash; /* Version name hash value */ ++ Elf32_Word vd_aux; /* Offset in bytes to verdaux array */ ++ Elf32_Word vd_next; /* Offset in bytes to next verdef ++ entry */ ++} Elf32_Verdef; ++ ++typedef struct ++{ ++ Elf64_Half vd_version; /* Version revision */ ++ Elf64_Half vd_flags; /* Version information */ ++ Elf64_Half vd_ndx; /* Version Index */ ++ Elf64_Half vd_cnt; /* Number of associated aux entries */ ++ Elf64_Word vd_hash; /* Version name hash value */ ++ Elf64_Word vd_aux; /* Offset in bytes to verdaux array */ ++ Elf64_Word vd_next; /* Offset in bytes to next verdef ++ entry */ ++} Elf64_Verdef; ++ ++ ++/* Legal values for vd_version (version revision). */ ++#define VER_DEF_NONE 0 /* No version */ ++#define VER_DEF_CURRENT 1 /* Current version */ ++#define VER_DEF_NUM 2 /* Given version number */ ++ ++/* Legal values for vd_flags (version information flags). */ ++#define VER_FLG_BASE 0x1 /* Version definition of file itself */ ++#define VER_FLG_WEAK 0x2 /* Weak version identifier */ ++ ++/* Versym symbol index values. */ ++#define VER_NDX_LOCAL 0 /* Symbol is local. */ ++#define VER_NDX_GLOBAL 1 /* Symbol is global. */ ++#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */ ++#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */ ++ ++/* Auxialiary version information. */ ++ ++typedef struct ++{ ++ Elf32_Word vda_name; /* Version or dependency names */ ++ Elf32_Word vda_next; /* Offset in bytes to next verdaux ++ entry */ ++} Elf32_Verdaux; ++ ++typedef struct ++{ ++ Elf64_Word vda_name; /* Version or dependency names */ ++ Elf64_Word vda_next; /* Offset in bytes to next verdaux ++ entry */ ++} Elf64_Verdaux; ++ ++ ++/* Version dependency section. */ ++ ++typedef struct ++{ ++ Elf32_Half vn_version; /* Version of structure */ ++ Elf32_Half vn_cnt; /* Number of associated aux entries */ ++ Elf32_Word vn_file; /* Offset of filename for this ++ dependency */ ++ Elf32_Word vn_aux; /* Offset in bytes to vernaux array */ ++ Elf32_Word vn_next; /* Offset in bytes to next verneed ++ entry */ ++} Elf32_Verneed; ++ ++typedef struct ++{ ++ Elf64_Half vn_version; /* Version of structure */ ++ Elf64_Half vn_cnt; /* Number of associated aux entries */ ++ Elf64_Word vn_file; /* Offset of filename for this ++ dependency */ ++ Elf64_Word vn_aux; /* Offset in bytes to vernaux array */ ++ Elf64_Word vn_next; /* Offset in bytes to next verneed ++ entry */ ++} Elf64_Verneed; ++ ++ ++/* Legal values for vn_version (version revision). */ ++#define VER_NEED_NONE 0 /* No version */ ++#define VER_NEED_CURRENT 1 /* Current version */ ++#define VER_NEED_NUM 2 /* Given version number */ ++ ++/* Auxiliary needed version information. */ ++ ++typedef struct ++{ ++ Elf32_Word vna_hash; /* Hash value of dependency name */ ++ Elf32_Half vna_flags; /* Dependency specific information */ ++ Elf32_Half vna_other; /* Unused */ ++ Elf32_Word vna_name; /* Dependency name string offset */ ++ Elf32_Word vna_next; /* Offset in bytes to next vernaux ++ entry */ ++} Elf32_Vernaux; ++ ++typedef struct ++{ ++ Elf64_Word vna_hash; /* Hash value of dependency name */ ++ Elf64_Half vna_flags; /* Dependency specific information */ ++ Elf64_Half vna_other; /* Unused */ ++ Elf64_Word vna_name; /* Dependency name string offset */ ++ Elf64_Word vna_next; /* Offset in bytes to next vernaux ++ entry */ ++} Elf64_Vernaux; ++ ++ ++/* Legal values for vna_flags. */ ++#define VER_FLG_WEAK 0x2 /* Weak version identifier */ ++ ++ ++/* Auxiliary vector. */ ++ ++/* This vector is normally only used by the program interpreter. The ++ usual definition in an ABI supplement uses the name auxv_t. The ++ vector is not usually defined in a standard file, but it ++ can't hurt. We rename it to avoid conflicts. The sizes of these ++ types are an arrangement between the exec server and the program ++ interpreter, so we don't fully specify them here. */ ++ ++typedef struct ++{ ++ int a_type; /* Entry type */ ++ union ++ { ++ long int a_val; /* Integer value */ ++ void *a_ptr; /* Pointer value */ ++ void (*a_fcn) (void); /* Function pointer value */ ++ } a_un; ++} Elf32_auxv_t; ++ ++typedef struct ++{ ++ long int a_type; /* Entry type */ ++ union ++ { ++ long int a_val; /* Integer value */ ++ void *a_ptr; /* Pointer value */ ++ void (*a_fcn) (void); /* Function pointer value */ ++ } a_un; ++} Elf64_auxv_t; ++ ++/* Legal values for a_type (entry type). */ ++ ++#define AT_NULL 0 /* End of vector */ ++#define AT_IGNORE 1 /* Entry should be ignored */ ++#define AT_EXECFD 2 /* File descriptor of program */ ++#define AT_PHDR 3 /* Program headers for program */ ++#define AT_PHENT 4 /* Size of program header entry */ ++#define AT_PHNUM 5 /* Number of program headers */ ++#define AT_PAGESZ 6 /* System page size */ ++#define AT_BASE 7 /* Base address of interpreter */ ++#define AT_FLAGS 8 /* Flags */ ++#define AT_ENTRY 9 /* Entry point of program */ ++#define AT_NOTELF 10 /* Program is not ELF */ ++#define AT_UID 11 /* Real uid */ ++#define AT_EUID 12 /* Effective uid */ ++#define AT_GID 13 /* Real gid */ ++#define AT_EGID 14 /* Effective gid */ ++#define AT_CLKTCK 17 /* Frequency of times() */ ++ ++/* Some more special a_type values describing the hardware. */ ++#define AT_PLATFORM 15 /* String identifying platform. */ ++#define AT_HWCAP 16 /* Machine dependent hints about ++ processor capabilities. */ ++ ++/* This entry gives some information about the FPU initialization ++ performed by the kernel. */ ++#define AT_FPUCW 18 /* Used FPU control word. */ ++ ++/* Cache block sizes. */ ++#define AT_DCACHEBSIZE 19 /* Data cache block size. */ ++#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ ++#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ ++ ++/* A special ignored value for PPC, used by the kernel to control the ++ interpretation of the AUXV. Must be > 16. */ ++#define AT_IGNOREPPC 22 /* Entry should be ignored. */ ++ ++#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ ++ ++/* Pointer to the global system page used for system calls and other ++ nice things. */ ++#define AT_SYSINFO 32 ++#define AT_SYSINFO_EHDR 33 ++ ++ ++/* Note section contents. Each entry in the note section begins with ++ a header of a fixed form. */ ++ ++typedef struct ++{ ++ Elf32_Word n_namesz; /* Length of the note's name. */ ++ Elf32_Word n_descsz; /* Length of the note's descriptor. */ ++ Elf32_Word n_type; /* Type of the note. */ ++} Elf32_Nhdr; ++ ++typedef struct ++{ ++ Elf64_Word n_namesz; /* Length of the note's name. */ ++ Elf64_Word n_descsz; /* Length of the note's descriptor. */ ++ Elf64_Word n_type; /* Type of the note. */ ++} Elf64_Nhdr; ++ ++/* Known names of notes. */ ++ ++/* Solaris entries in the note section have this name. */ ++#define ELF_NOTE_SOLARIS "SUNW Solaris" ++ ++/* Note entries for GNU systems have this name. */ ++#define ELF_NOTE_GNU "GNU" ++ ++ ++/* Defined types of notes for Solaris. */ ++ ++/* Value of descriptor (one word) is desired pagesize for the binary. */ ++#define ELF_NOTE_PAGESIZE_HINT 1 ++ ++ ++/* Defined note types for GNU systems. */ ++ ++/* ABI information. The descriptor consists of words: ++ word 0: OS descriptor ++ word 1: major version of the ABI ++ word 2: minor version of the ABI ++ word 3: subminor version of the ABI ++*/ ++#define ELF_NOTE_ABI 1 ++ ++/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI ++ note section entry. */ ++#define ELF_NOTE_OS_LINUX 0 ++#define ELF_NOTE_OS_GNU 1 ++#define ELF_NOTE_OS_SOLARIS2 2 ++#define ELF_NOTE_OS_FREEBSD 3 ++ ++ ++/* Move records. */ ++typedef struct ++{ ++ Elf32_Xword m_value; /* Symbol value. */ ++ Elf32_Word m_info; /* Size and index. */ ++ Elf32_Word m_poffset; /* Symbol offset. */ ++ Elf32_Half m_repeat; /* Repeat count. */ ++ Elf32_Half m_stride; /* Stride info. */ ++} Elf32_Move; ++ ++typedef struct ++{ ++ Elf64_Xword m_value; /* Symbol value. */ ++ Elf64_Xword m_info; /* Size and index. */ ++ Elf64_Xword m_poffset; /* Symbol offset. */ ++ Elf64_Half m_repeat; /* Repeat count. */ ++ Elf64_Half m_stride; /* Stride info. */ ++} Elf64_Move; ++ ++/* Macro to construct move records. */ ++#define ELF32_M_SYM(info) ((info) >> 8) ++#define ELF32_M_SIZE(info) ((unsigned char) (info)) ++#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) ++ ++#define ELF64_M_SYM(info) ELF32_M_SYM (info) ++#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) ++#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) ++ ++ ++/* Motorola 68k specific definitions. */ ++ ++/* Values for Elf32_Ehdr.e_flags. */ ++#define EF_CPU32 0x00810000 ++ ++/* m68k relocs. */ ++ ++#define R_68K_NONE 0 /* No reloc */ ++#define R_68K_32 1 /* Direct 32 bit */ ++#define R_68K_16 2 /* Direct 16 bit */ ++#define R_68K_8 3 /* Direct 8 bit */ ++#define R_68K_PC32 4 /* PC relative 32 bit */ ++#define R_68K_PC16 5 /* PC relative 16 bit */ ++#define R_68K_PC8 6 /* PC relative 8 bit */ ++#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ ++#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ ++#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ ++#define R_68K_GOT32O 10 /* 32 bit GOT offset */ ++#define R_68K_GOT16O 11 /* 16 bit GOT offset */ ++#define R_68K_GOT8O 12 /* 8 bit GOT offset */ ++#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ ++#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ ++#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ ++#define R_68K_PLT32O 16 /* 32 bit PLT offset */ ++#define R_68K_PLT16O 17 /* 16 bit PLT offset */ ++#define R_68K_PLT8O 18 /* 8 bit PLT offset */ ++#define R_68K_COPY 19 /* Copy symbol at runtime */ ++#define R_68K_GLOB_DAT 20 /* Create GOT entry */ ++#define R_68K_JMP_SLOT 21 /* Create PLT entry */ ++#define R_68K_RELATIVE 22 /* Adjust by program base */ ++/* Keep this the last entry. */ ++#define R_68K_NUM 23 ++ ++/* Intel 80386 specific definitions. */ ++ ++/* i386 relocs. */ ++ ++#define R_386_NONE 0 /* No reloc */ ++#define R_386_32 1 /* Direct 32 bit */ ++#define R_386_PC32 2 /* PC relative 32 bit */ ++#define R_386_GOT32 3 /* 32 bit GOT entry */ ++#define R_386_PLT32 4 /* 32 bit PLT address */ ++#define R_386_COPY 5 /* Copy symbol at runtime */ ++#define R_386_GLOB_DAT 6 /* Create GOT entry */ ++#define R_386_JMP_SLOT 7 /* Create PLT entry */ ++#define R_386_RELATIVE 8 /* Adjust by program base */ ++#define R_386_GOTOFF 9 /* 32 bit offset to GOT */ ++#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ ++#define R_386_32PLT 11 ++#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ ++#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS ++ block offset */ ++#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block ++ offset */ ++#define R_386_TLS_LE 17 /* Offset relative to static TLS ++ block */ ++#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of ++ general dynamic thread local data */ ++#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of ++ local dynamic thread local data ++ in LE code */ ++#define R_386_16 20 ++#define R_386_PC16 21 ++#define R_386_8 22 ++#define R_386_PC8 23 ++#define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic ++ thread local data */ ++#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ ++#define R_386_TLS_GD_CALL 26 /* Relocation for call to ++ __tls_get_addr() */ ++#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ ++#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic ++ thread local data in LE code */ ++#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ ++#define R_386_TLS_LDM_CALL 30 /* Relocation for call to ++ __tls_get_addr() in LDM code */ ++#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ ++#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ ++#define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS ++ block offset */ ++#define R_386_TLS_LE_32 34 /* Negated offset relative to static ++ TLS block */ ++#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ ++#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ ++#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ ++/* Keep this the last entry. */ ++#define R_386_NUM 38 ++ ++/* SUN SPARC specific definitions. */ ++ ++/* Legal values for ST_TYPE subfield of st_info (symbol type). */ ++ ++#define STT_REGISTER 13 /* Global register reserved to app. */ ++ ++/* Values for Elf64_Ehdr.e_flags. */ ++ ++#define EF_SPARCV9_MM 3 ++#define EF_SPARCV9_TSO 0 ++#define EF_SPARCV9_PSO 1 ++#define EF_SPARCV9_RMO 2 ++#define EF_SPARC_LEDATA 0x800000 /* little endian data */ ++#define EF_SPARC_EXT_MASK 0xFFFF00 ++#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */ ++#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */ ++#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */ ++#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */ ++ ++/* SPARC relocs. */ ++ ++#define R_SPARC_NONE 0 /* No reloc */ ++#define R_SPARC_8 1 /* Direct 8 bit */ ++#define R_SPARC_16 2 /* Direct 16 bit */ ++#define R_SPARC_32 3 /* Direct 32 bit */ ++#define R_SPARC_DISP8 4 /* PC relative 8 bit */ ++#define R_SPARC_DISP16 5 /* PC relative 16 bit */ ++#define R_SPARC_DISP32 6 /* PC relative 32 bit */ ++#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ ++#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ ++#define R_SPARC_HI22 9 /* High 22 bit */ ++#define R_SPARC_22 10 /* Direct 22 bit */ ++#define R_SPARC_13 11 /* Direct 13 bit */ ++#define R_SPARC_LO10 12 /* Truncated 10 bit */ ++#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ ++#define R_SPARC_GOT13 14 /* 13 bit GOT entry */ ++#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ ++#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ ++#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ ++#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ ++#define R_SPARC_COPY 19 /* Copy symbol at runtime */ ++#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ ++#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ ++#define R_SPARC_RELATIVE 22 /* Adjust by program base */ ++#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ ++ ++/* Additional Sparc64 relocs. */ ++ ++#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */ ++#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */ ++#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */ ++#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */ ++#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */ ++#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */ ++#define R_SPARC_10 30 /* Direct 10 bit */ ++#define R_SPARC_11 31 /* Direct 11 bit */ ++#define R_SPARC_64 32 /* Direct 64 bit */ ++#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */ ++#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */ ++#define R_SPARC_HM10 35 /* High middle 10 bits of ... */ ++#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */ ++#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */ ++#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */ ++#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */ ++#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */ ++#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */ ++#define R_SPARC_7 43 /* Direct 7 bit */ ++#define R_SPARC_5 44 /* Direct 5 bit */ ++#define R_SPARC_6 45 /* Direct 6 bit */ ++#define R_SPARC_DISP64 46 /* PC relative 64 bit */ ++#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */ ++#define R_SPARC_HIX22 48 /* High 22 bit complemented */ ++#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */ ++#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */ ++#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */ ++#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */ ++#define R_SPARC_REGISTER 53 /* Global register usage */ ++#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */ ++#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */ ++#define R_SPARC_TLS_GD_HI22 56 ++#define R_SPARC_TLS_GD_LO10 57 ++#define R_SPARC_TLS_GD_ADD 58 ++#define R_SPARC_TLS_GD_CALL 59 ++#define R_SPARC_TLS_LDM_HI22 60 ++#define R_SPARC_TLS_LDM_LO10 61 ++#define R_SPARC_TLS_LDM_ADD 62 ++#define R_SPARC_TLS_LDM_CALL 63 ++#define R_SPARC_TLS_LDO_HIX22 64 ++#define R_SPARC_TLS_LDO_LOX10 65 ++#define R_SPARC_TLS_LDO_ADD 66 ++#define R_SPARC_TLS_IE_HI22 67 ++#define R_SPARC_TLS_IE_LO10 68 ++#define R_SPARC_TLS_IE_LD 69 ++#define R_SPARC_TLS_IE_LDX 70 ++#define R_SPARC_TLS_IE_ADD 71 ++#define R_SPARC_TLS_LE_HIX22 72 ++#define R_SPARC_TLS_LE_LOX10 73 ++#define R_SPARC_TLS_DTPMOD32 74 ++#define R_SPARC_TLS_DTPMOD64 75 ++#define R_SPARC_TLS_DTPOFF32 76 ++#define R_SPARC_TLS_DTPOFF64 77 ++#define R_SPARC_TLS_TPOFF32 78 ++#define R_SPARC_TLS_TPOFF64 79 ++/* Keep this the last entry. */ ++#define R_SPARC_NUM 80 ++ ++/* For Sparc64, legal values for d_tag of Elf64_Dyn. */ ++ ++#define DT_SPARC_REGISTER 0x70000001 ++#define DT_SPARC_NUM 2 ++ ++/* Bits present in AT_HWCAP, primarily for Sparc32. */ ++ ++#define HWCAP_SPARC_FLUSH 1 /* The cpu supports flush insn. */ ++#define HWCAP_SPARC_STBAR 2 ++#define HWCAP_SPARC_SWAP 4 ++#define HWCAP_SPARC_MULDIV 8 ++#define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */ ++#define HWCAP_SPARC_ULTRA3 32 ++ ++/* MIPS R3000 specific definitions. */ ++ ++/* Legal values for e_flags field of Elf32_Ehdr. */ ++ ++#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ ++#define EF_MIPS_PIC 2 /* Contains PIC code */ ++#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ ++#define EF_MIPS_XGOT 8 ++#define EF_MIPS_64BIT_WHIRL 16 ++#define EF_MIPS_ABI2 32 ++#define EF_MIPS_ABI_ON32 64 ++#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ ++ ++/* Legal values for MIPS architecture level. */ ++ ++#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ ++#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ ++#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ ++#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ ++#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ ++#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ ++#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ ++ ++/* The following are non-official names and should not be used. */ ++ ++#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ ++#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ ++#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ ++#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ ++#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ ++#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ ++#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ ++ ++/* Special section indices. */ ++ ++#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ ++#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ ++#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ ++#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ ++#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ ++ ++/* Legal values for sh_type field of Elf32_Shdr. */ ++ ++#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ ++#define SHT_MIPS_MSYM 0x70000001 ++#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ ++#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ ++#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ ++#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/ ++#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ ++#define SHT_MIPS_PACKAGE 0x70000007 ++#define SHT_MIPS_PACKSYM 0x70000008 ++#define SHT_MIPS_RELD 0x70000009 ++#define SHT_MIPS_IFACE 0x7000000b ++#define SHT_MIPS_CONTENT 0x7000000c ++#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ ++#define SHT_MIPS_SHDR 0x70000010 ++#define SHT_MIPS_FDESC 0x70000011 ++#define SHT_MIPS_EXTSYM 0x70000012 ++#define SHT_MIPS_DENSE 0x70000013 ++#define SHT_MIPS_PDESC 0x70000014 ++#define SHT_MIPS_LOCSYM 0x70000015 ++#define SHT_MIPS_AUXSYM 0x70000016 ++#define SHT_MIPS_OPTSYM 0x70000017 ++#define SHT_MIPS_LOCSTR 0x70000018 ++#define SHT_MIPS_LINE 0x70000019 ++#define SHT_MIPS_RFDESC 0x7000001a ++#define SHT_MIPS_DELTASYM 0x7000001b ++#define SHT_MIPS_DELTAINST 0x7000001c ++#define SHT_MIPS_DELTACLASS 0x7000001d ++#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ ++#define SHT_MIPS_DELTADECL 0x7000001f ++#define SHT_MIPS_SYMBOL_LIB 0x70000020 ++#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ ++#define SHT_MIPS_TRANSLATE 0x70000022 ++#define SHT_MIPS_PIXIE 0x70000023 ++#define SHT_MIPS_XLATE 0x70000024 ++#define SHT_MIPS_XLATE_DEBUG 0x70000025 ++#define SHT_MIPS_WHIRL 0x70000026 ++#define SHT_MIPS_EH_REGION 0x70000027 ++#define SHT_MIPS_XLATE_OLD 0x70000028 ++#define SHT_MIPS_PDR_EXCEPTION 0x70000029 ++ ++/* Legal values for sh_flags field of Elf32_Shdr. */ ++ ++#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ ++#define SHF_MIPS_MERGE 0x20000000 ++#define SHF_MIPS_ADDR 0x40000000 ++#define SHF_MIPS_STRINGS 0x80000000 ++#define SHF_MIPS_NOSTRIP 0x08000000 ++#define SHF_MIPS_LOCAL 0x04000000 ++#define SHF_MIPS_NAMES 0x02000000 ++#define SHF_MIPS_NODUPE 0x01000000 ++ ++ ++/* Symbol tables. */ ++ ++/* MIPS specific values for `st_other'. */ ++#define STO_MIPS_DEFAULT 0x0 ++#define STO_MIPS_INTERNAL 0x1 ++#define STO_MIPS_HIDDEN 0x2 ++#define STO_MIPS_PROTECTED 0x3 ++#define STO_MIPS_SC_ALIGN_UNUSED 0xff ++ ++/* MIPS specific values for `st_info'. */ ++#define STB_MIPS_SPLIT_COMMON 13 ++ ++/* Entries found in sections of type SHT_MIPS_GPTAB. */ ++ ++typedef union ++{ ++ struct ++ { ++ Elf32_Word gt_current_g_value; /* -G value used for compilation */ ++ Elf32_Word gt_unused; /* Not used */ ++ } gt_header; /* First entry in section */ ++ struct ++ { ++ Elf32_Word gt_g_value; /* If this value were used for -G */ ++ Elf32_Word gt_bytes; /* This many bytes would be used */ ++ } gt_entry; /* Subsequent entries in section */ ++} Elf32_gptab; ++ ++/* Entry found in sections of type SHT_MIPS_REGINFO. */ ++ ++typedef struct ++{ ++ Elf32_Word ri_gprmask; /* General registers used */ ++ Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ ++ Elf32_Sword ri_gp_value; /* $gp register value */ ++} Elf32_RegInfo; ++ ++/* Entries found in sections of type SHT_MIPS_OPTIONS. */ ++ ++typedef struct ++{ ++ unsigned char kind; /* Determines interpretation of the ++ variable part of descriptor. */ ++ unsigned char size; /* Size of descriptor, including header. */ ++ Elf32_Section section; /* Section header index of section affected, ++ 0 for global options. */ ++ Elf32_Word info; /* Kind-specific information. */ ++} Elf_Options; ++ ++/* Values for `kind' field in Elf_Options. */ ++ ++#define ODK_NULL 0 /* Undefined. */ ++#define ODK_REGINFO 1 /* Register usage information. */ ++#define ODK_EXCEPTIONS 2 /* Exception processing options. */ ++#define ODK_PAD 3 /* Section padding options. */ ++#define ODK_HWPATCH 4 /* Hardware workarounds performed */ ++#define ODK_FILL 5 /* record the fill value used by the linker. */ ++#define ODK_TAGS 6 /* reserve space for desktop tools to write. */ ++#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */ ++#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */ ++ ++/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */ ++ ++#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */ ++#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */ ++#define OEX_PAGE0 0x10000 /* page zero must be mapped. */ ++#define OEX_SMM 0x20000 /* Force sequential memory mode? */ ++#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */ ++#define OEX_PRECISEFP OEX_FPDBUG ++#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */ ++ ++#define OEX_FPU_INVAL 0x10 ++#define OEX_FPU_DIV0 0x08 ++#define OEX_FPU_OFLO 0x04 ++#define OEX_FPU_UFLO 0x02 ++#define OEX_FPU_INEX 0x01 ++ ++/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */ ++ ++#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */ ++#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */ ++#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */ ++#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */ ++ ++#define OPAD_PREFIX 0x1 ++#define OPAD_POSTFIX 0x2 ++#define OPAD_SYMBOL 0x4 ++ ++/* Entry found in `.options' section. */ ++ ++typedef struct ++{ ++ Elf32_Word hwp_flags1; /* Extra flags. */ ++ Elf32_Word hwp_flags2; /* Extra flags. */ ++} Elf_Options_Hw; ++ ++/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */ ++ ++#define OHWA0_R4KEOP_CHECKED 0x00000001 ++#define OHWA1_R4KEOP_CLEAN 0x00000002 ++ ++/* MIPS relocs. */ ++ ++#define R_MIPS_NONE 0 /* No reloc */ ++#define R_MIPS_16 1 /* Direct 16 bit */ ++#define R_MIPS_32 2 /* Direct 32 bit */ ++#define R_MIPS_REL32 3 /* PC relative 32 bit */ ++#define R_MIPS_26 4 /* Direct 26 bit shifted */ ++#define R_MIPS_HI16 5 /* High 16 bit */ ++#define R_MIPS_LO16 6 /* Low 16 bit */ ++#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ ++#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ ++#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ ++#define R_MIPS_PC16 10 /* PC relative 16 bit */ ++#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ ++#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ ++ ++#define R_MIPS_SHIFT5 16 ++#define R_MIPS_SHIFT6 17 ++#define R_MIPS_64 18 ++#define R_MIPS_GOT_DISP 19 ++#define R_MIPS_GOT_PAGE 20 ++#define R_MIPS_GOT_OFST 21 ++#define R_MIPS_GOT_HI16 22 ++#define R_MIPS_GOT_LO16 23 ++#define R_MIPS_SUB 24 ++#define R_MIPS_INSERT_A 25 ++#define R_MIPS_INSERT_B 26 ++#define R_MIPS_DELETE 27 ++#define R_MIPS_HIGHER 28 ++#define R_MIPS_HIGHEST 29 ++#define R_MIPS_CALL_HI16 30 ++#define R_MIPS_CALL_LO16 31 ++#define R_MIPS_SCN_DISP 32 ++#define R_MIPS_REL16 33 ++#define R_MIPS_ADD_IMMEDIATE 34 ++#define R_MIPS_PJUMP 35 ++#define R_MIPS_RELGOT 36 ++#define R_MIPS_JALR 37 ++/* Keep this the last entry. */ ++#define R_MIPS_NUM 38 ++ ++/* Legal values for p_type field of Elf32_Phdr. */ ++ ++#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ ++#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ ++#define PT_MIPS_OPTIONS 0x70000002 ++ ++/* Special program header types. */ ++ ++#define PF_MIPS_LOCAL 0x10000000 ++ ++/* Legal values for d_tag field of Elf32_Dyn. */ ++ ++#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ ++#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ ++#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ ++#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ ++#define DT_MIPS_FLAGS 0x70000005 /* Flags */ ++#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ ++#define DT_MIPS_MSYM 0x70000007 ++#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ ++#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ ++#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ ++#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ ++#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ ++#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ ++#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ ++#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ ++#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ ++#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ ++#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */ ++#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in ++ DT_MIPS_DELTA_CLASS. */ ++#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */ ++#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in ++ DT_MIPS_DELTA_INSTANCE. */ ++#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */ ++#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in ++ DT_MIPS_DELTA_RELOC. */ ++#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta ++ relocations refer to. */ ++#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in ++ DT_MIPS_DELTA_SYM. */ ++#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the ++ class declaration. */ ++#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in ++ DT_MIPS_DELTA_CLASSSYM. */ ++#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */ ++#define DT_MIPS_PIXIE_INIT 0x70000023 ++#define DT_MIPS_SYMBOL_LIB 0x70000024 ++#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 ++#define DT_MIPS_LOCAL_GOTIDX 0x70000026 ++#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 ++#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 ++#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */ ++#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */ ++#define DT_MIPS_DYNSTR_ALIGN 0x7000002b ++#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */ ++#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve ++ function stored in GOT. */ ++#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added ++ by rld on dlopen() calls. */ ++#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */ ++#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */ ++#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */ ++#define DT_MIPS_NUM 0x32 ++ ++/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */ ++ ++#define RHF_NONE 0 /* No flags */ ++#define RHF_QUICKSTART (1 << 0) /* Use quickstart */ ++#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ ++#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ ++#define RHF_NO_MOVE (1 << 3) ++#define RHF_SGI_ONLY (1 << 4) ++#define RHF_GUARANTEE_INIT (1 << 5) ++#define RHF_DELTA_C_PLUS_PLUS (1 << 6) ++#define RHF_GUARANTEE_START_INIT (1 << 7) ++#define RHF_PIXIE (1 << 8) ++#define RHF_DEFAULT_DELAY_LOAD (1 << 9) ++#define RHF_REQUICKSTART (1 << 10) ++#define RHF_REQUICKSTARTED (1 << 11) ++#define RHF_CORD (1 << 12) ++#define RHF_NO_UNRES_UNDEF (1 << 13) ++#define RHF_RLD_ORDER_SAFE (1 << 14) ++ ++/* Entries found in sections of type SHT_MIPS_LIBLIST. */ ++ ++typedef struct ++{ ++ Elf32_Word l_name; /* Name (string table index) */ ++ Elf32_Word l_time_stamp; /* Timestamp */ ++ Elf32_Word l_checksum; /* Checksum */ ++ Elf32_Word l_version; /* Interface version */ ++ Elf32_Word l_flags; /* Flags */ ++} Elf32_Lib; ++ ++typedef struct ++{ ++ Elf64_Word l_name; /* Name (string table index) */ ++ Elf64_Word l_time_stamp; /* Timestamp */ ++ Elf64_Word l_checksum; /* Checksum */ ++ Elf64_Word l_version; /* Interface version */ ++ Elf64_Word l_flags; /* Flags */ ++} Elf64_Lib; ++ ++ ++/* Legal values for l_flags. */ ++ ++#define LL_NONE 0 ++#define LL_EXACT_MATCH (1 << 0) /* Require exact match */ ++#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ ++#define LL_REQUIRE_MINOR (1 << 2) ++#define LL_EXPORTS (1 << 3) ++#define LL_DELAY_LOAD (1 << 4) ++#define LL_DELTA (1 << 5) ++ ++/* Entries found in sections of type SHT_MIPS_CONFLICT. */ ++ ++typedef Elf32_Addr Elf32_Conflict; ++ ++ ++/* HPPA specific definitions. */ ++ ++/* Legal values for e_flags field of Elf32_Ehdr. */ ++ ++#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */ ++#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */ ++#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */ ++#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */ ++#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch ++ prediction. */ ++#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */ ++#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. */ ++ ++/* Defined values for `e_flags & EF_PARISC_ARCH' are: */ ++ ++#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */ ++#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */ ++#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */ ++ ++/* Additional section indeces. */ ++ ++#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared ++ symbols in ANSI C. */ ++#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. */ ++ ++/* Legal values for sh_type field of Elf32_Shdr. */ ++ ++#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */ ++#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */ ++#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. */ ++ ++/* Legal values for sh_flags field of Elf32_Shdr. */ ++ ++#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ ++#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */ ++#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */ ++ ++/* Legal values for ST_TYPE subfield of st_info (symbol type). */ ++ ++#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ ++ ++#define STT_HP_OPAQUE (STT_LOOS + 0x1) ++#define STT_HP_STUB (STT_LOOS + 0x2) ++ ++/* HPPA relocs. */ ++ ++#define R_PARISC_NONE 0 /* No reloc. */ ++#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */ ++#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */ ++#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */ ++#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */ ++#define R_PARISC_DIR14R 6 /* Right 14 bits of eff. address. */ ++#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */ ++#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */ ++#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */ ++#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */ ++#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */ ++#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */ ++#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */ ++#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */ ++#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */ ++#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */ ++#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */ ++#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */ ++#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */ ++#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */ ++#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */ ++#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */ ++#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */ ++#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */ ++#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */ ++#define R_PARISC_FPTR64 64 /* 64 bits function address. */ ++#define R_PARISC_PLABEL32 65 /* 32 bits function address. */ ++#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */ ++#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */ ++#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */ ++#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */ ++#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */ ++#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */ ++#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */ ++#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */ ++#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */ ++#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */ ++#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */ ++#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */ ++#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */ ++#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */ ++#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */ ++#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */ ++#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */ ++#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */ ++#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */ ++#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */ ++#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */ ++#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */ ++#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */ ++#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */ ++#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */ ++#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */ ++#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */ ++#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */ ++#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */ ++#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */ ++#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */ ++#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */ ++#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */ ++#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14 bits. */ ++#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14 bits. */ ++#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */ ++#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function ptr. */ ++#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function ptr. */ ++#define R_PARISC_LORESERVE 128 ++#define R_PARISC_COPY 128 /* Copy relocation. */ ++#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */ ++#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */ ++#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */ ++#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */ ++#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */ ++#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */ ++#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/ ++#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */ ++#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */ ++#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */ ++#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */ ++#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */ ++#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */ ++#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */ ++#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */ ++#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/ ++#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/ ++#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */ ++#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */ ++#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */ ++#define R_PARISC_HIRESERVE 255 ++ ++/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */ ++ ++#define PT_HP_TLS (PT_LOOS + 0x0) ++#define PT_HP_CORE_NONE (PT_LOOS + 0x1) ++#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) ++#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) ++#define PT_HP_CORE_COMM (PT_LOOS + 0x4) ++#define PT_HP_CORE_PROC (PT_LOOS + 0x5) ++#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) ++#define PT_HP_CORE_STACK (PT_LOOS + 0x7) ++#define PT_HP_CORE_SHM (PT_LOOS + 0x8) ++#define PT_HP_CORE_MMF (PT_LOOS + 0x9) ++#define PT_HP_PARALLEL (PT_LOOS + 0x10) ++#define PT_HP_FASTBIND (PT_LOOS + 0x11) ++#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) ++#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) ++#define PT_HP_STACK (PT_LOOS + 0x14) ++ ++#define PT_PARISC_ARCHEXT 0x70000000 ++#define PT_PARISC_UNWIND 0x70000001 ++ ++/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */ ++ ++#define PF_PARISC_SBP 0x08000000 ++ ++#define PF_HP_PAGE_SIZE 0x00100000 ++#define PF_HP_FAR_SHARED 0x00200000 ++#define PF_HP_NEAR_SHARED 0x00400000 ++#define PF_HP_CODE 0x01000000 ++#define PF_HP_MODIFY 0x02000000 ++#define PF_HP_LAZYSWAP 0x04000000 ++#define PF_HP_SBP 0x08000000 ++ ++ ++/* Alpha specific definitions. */ ++ ++/* Legal values for e_flags field of Elf64_Ehdr. */ ++ ++#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ ++#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ ++ ++/* Legal values for sh_type field of Elf64_Shdr. */ ++ ++/* These two are primerily concerned with ECOFF debugging info. */ ++#define SHT_ALPHA_DEBUG 0x70000001 ++#define SHT_ALPHA_REGINFO 0x70000002 ++ ++/* Legal values for sh_flags field of Elf64_Shdr. */ ++ ++#define SHF_ALPHA_GPREL 0x10000000 ++ ++/* Legal values for st_other field of Elf64_Sym. */ ++#define STO_ALPHA_NOPV 0x80 /* No PV required. */ ++#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */ ++ ++/* Alpha relocs. */ ++ ++#define R_ALPHA_NONE 0 /* No reloc */ ++#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ ++#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ ++#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ ++#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ ++#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ ++#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ ++#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ ++#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ ++#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ ++#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ ++#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ ++#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ ++#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ ++#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ ++#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ ++#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ ++#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ ++#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ ++#define R_ALPHA_TLS_GD_HI 28 ++#define R_ALPHA_TLSGD 29 ++#define R_ALPHA_TLS_LDM 30 ++#define R_ALPHA_DTPMOD64 31 ++#define R_ALPHA_GOTDTPREL 32 ++#define R_ALPHA_DTPREL64 33 ++#define R_ALPHA_DTPRELHI 34 ++#define R_ALPHA_DTPRELLO 35 ++#define R_ALPHA_DTPREL16 36 ++#define R_ALPHA_GOTTPREL 37 ++#define R_ALPHA_TPREL64 38 ++#define R_ALPHA_TPRELHI 39 ++#define R_ALPHA_TPRELLO 40 ++#define R_ALPHA_TPREL16 41 ++/* Keep this the last entry. */ ++#define R_ALPHA_NUM 46 ++ ++/* Magic values of the LITUSE relocation addend. */ ++#define LITUSE_ALPHA_ADDR 0 ++#define LITUSE_ALPHA_BASE 1 ++#define LITUSE_ALPHA_BYTOFF 2 ++#define LITUSE_ALPHA_JSR 3 ++#define LITUSE_ALPHA_TLS_GD 4 ++#define LITUSE_ALPHA_TLS_LDM 5 ++ ++ ++/* PowerPC specific declarations */ ++ ++/* Values for Elf32/64_Ehdr.e_flags. */ ++#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ ++ ++/* Cygnus local bits below */ ++#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ ++#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib ++ flag */ ++ ++/* PowerPC relocations defined by the ABIs */ ++#define R_PPC_NONE 0 ++#define R_PPC_ADDR32 1 /* 32bit absolute address */ ++#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ ++#define R_PPC_ADDR16 3 /* 16bit absolute address */ ++#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ ++#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ ++#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ ++#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ ++#define R_PPC_ADDR14_BRTAKEN 8 ++#define R_PPC_ADDR14_BRNTAKEN 9 ++#define R_PPC_REL24 10 /* PC relative 26 bit */ ++#define R_PPC_REL14 11 /* PC relative 16 bit */ ++#define R_PPC_REL14_BRTAKEN 12 ++#define R_PPC_REL14_BRNTAKEN 13 ++#define R_PPC_GOT16 14 ++#define R_PPC_GOT16_LO 15 ++#define R_PPC_GOT16_HI 16 ++#define R_PPC_GOT16_HA 17 ++#define R_PPC_PLTREL24 18 ++#define R_PPC_COPY 19 ++#define R_PPC_GLOB_DAT 20 ++#define R_PPC_JMP_SLOT 21 ++#define R_PPC_RELATIVE 22 ++#define R_PPC_LOCAL24PC 23 ++#define R_PPC_UADDR32 24 ++#define R_PPC_UADDR16 25 ++#define R_PPC_REL32 26 ++#define R_PPC_PLT32 27 ++#define R_PPC_PLTREL32 28 ++#define R_PPC_PLT16_LO 29 ++#define R_PPC_PLT16_HI 30 ++#define R_PPC_PLT16_HA 31 ++#define R_PPC_SDAREL16 32 ++#define R_PPC_SECTOFF 33 ++#define R_PPC_SECTOFF_LO 34 ++#define R_PPC_SECTOFF_HI 35 ++#define R_PPC_SECTOFF_HA 36 ++ ++/* PowerPC relocations defined for the TLS access ABI. */ ++#define R_PPC_TLS 67 /* none (sym+add)@tls */ ++#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */ ++#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */ ++#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ ++#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ ++#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ ++#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */ ++#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */ ++#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ ++#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ ++#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ ++#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */ ++#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ ++#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ ++#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ ++#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ ++#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ ++#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ ++#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ ++#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ ++#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@got@tprel */ ++#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@got@tprel@l */ ++#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ ++#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ ++#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@got@dtprel */ ++#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@got@dtprel@l */ ++#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */ ++#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */ ++ ++/* Keep this the last entry. */ ++#define R_PPC_NUM 95 ++ ++/* The remaining relocs are from the Embedded ELF ABI, and are not ++ in the SVR4 ELF ABI. */ ++#define R_PPC_EMB_NADDR32 101 ++#define R_PPC_EMB_NADDR16 102 ++#define R_PPC_EMB_NADDR16_LO 103 ++#define R_PPC_EMB_NADDR16_HI 104 ++#define R_PPC_EMB_NADDR16_HA 105 ++#define R_PPC_EMB_SDAI16 106 ++#define R_PPC_EMB_SDA2I16 107 ++#define R_PPC_EMB_SDA2REL 108 ++#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ ++#define R_PPC_EMB_MRKREF 110 ++#define R_PPC_EMB_RELSEC16 111 ++#define R_PPC_EMB_RELST_LO 112 ++#define R_PPC_EMB_RELST_HI 113 ++#define R_PPC_EMB_RELST_HA 114 ++#define R_PPC_EMB_BIT_FLD 115 ++#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ ++ ++/* Diab tool relocations. */ ++#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ ++#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ ++#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ ++#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ ++#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ ++#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ ++ ++/* This is a phony reloc to handle any old fashioned TOC16 references ++ that may still be in object files. */ ++#define R_PPC_TOC16 255 ++ ++ ++/* PowerPC64 relocations defined by the ABIs */ ++#define R_PPC64_NONE R_PPC_NONE ++#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */ ++#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */ ++#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */ ++#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */ ++#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */ ++#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */ ++#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */ ++#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN ++#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN ++#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */ ++#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */ ++#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN ++#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN ++#define R_PPC64_GOT16 R_PPC_GOT16 ++#define R_PPC64_GOT16_LO R_PPC_GOT16_LO ++#define R_PPC64_GOT16_HI R_PPC_GOT16_HI ++#define R_PPC64_GOT16_HA R_PPC_GOT16_HA ++ ++#define R_PPC64_COPY R_PPC_COPY ++#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT ++#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT ++#define R_PPC64_RELATIVE R_PPC_RELATIVE ++ ++#define R_PPC64_UADDR32 R_PPC_UADDR32 ++#define R_PPC64_UADDR16 R_PPC_UADDR16 ++#define R_PPC64_REL32 R_PPC_REL32 ++#define R_PPC64_PLT32 R_PPC_PLT32 ++#define R_PPC64_PLTREL32 R_PPC_PLTREL32 ++#define R_PPC64_PLT16_LO R_PPC_PLT16_LO ++#define R_PPC64_PLT16_HI R_PPC_PLT16_HI ++#define R_PPC64_PLT16_HA R_PPC_PLT16_HA ++ ++#define R_PPC64_SECTOFF R_PPC_SECTOFF ++#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO ++#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI ++#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA ++#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */ ++#define R_PPC64_ADDR64 38 /* doubleword64 S + A */ ++#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */ ++#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */ ++#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */ ++#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */ ++#define R_PPC64_UADDR64 43 /* doubleword64 S + A */ ++#define R_PPC64_REL64 44 /* doubleword64 S + A - P */ ++#define R_PPC64_PLT64 45 /* doubleword64 L + A */ ++#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */ ++#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */ ++#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */ ++#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */ ++#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */ ++#define R_PPC64_TOC 51 /* doubleword64 .TOC */ ++#define R_PPC64_PLTGOT16 52 /* half16* M + A */ ++#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */ ++#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */ ++#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */ ++ ++#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */ ++#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */ ++#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */ ++#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */ ++#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */ ++#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */ ++#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */ ++#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */ ++#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */ ++#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */ ++#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */ ++ ++/* PowerPC64 relocations defined for the TLS access ABI. */ ++#define R_PPC64_TLS 67 /* none (sym+add)@tls */ ++#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */ ++#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */ ++#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ ++#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ ++#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ ++#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */ ++#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */ ++#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ ++#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ ++#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ ++#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */ ++#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ ++#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ ++#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ ++#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ ++#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ ++#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ ++#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ ++#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ ++#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@got@tprel */ ++#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ ++#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ ++#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ ++#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */ ++#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ ++#define R_PPC64_GOT_DTPREL16_HI 93 /* half16 (sym+add)@got@dtprel@h */ ++#define R_PPC64_GOT_DTPREL16_HA 94 /* half16 (sym+add)@got@dtprel@ha */ ++#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */ ++#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@tprel@l */ ++#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@tprel@higher */ ++#define R_PPC64_TPREL16_HIGHERA 98 /* half16 (sym+add)@tprel@highera */ ++#define R_PPC64_TPREL16_HIGHEST 99 /* half16 (sym+add)@tprel@highest */ ++#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@tprel@highesta */ ++#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */ ++#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@dtprel@l */ ++#define R_PPC64_DTPREL16_HIGHER 103 /* half16 (sym+add)@dtprel@higher */ ++#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */ ++#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */ ++#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */ ++ ++/* Keep this the last entry. */ ++#define R_PPC64_NUM 107 ++ ++/* PowerPC64 specific values for the Dyn d_tag field. */ ++#define DT_PPC64_GLINK (DT_LOPROC + 0) ++#define DT_PPC64_NUM 1 ++ ++ ++/* ARM specific declarations */ ++ ++/* Processor specific flags for the ELF header e_flags field. */ ++#define EF_ARM_RELEXEC 0x01 ++#define EF_ARM_HASENTRY 0x02 ++#define EF_ARM_INTERWORK 0x04 ++#define EF_ARM_APCS_26 0x08 ++#define EF_ARM_APCS_FLOAT 0x10 ++#define EF_ARM_PIC 0x20 ++#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */ ++#define EF_ARM_NEW_ABI 0x80 ++#define EF_ARM_OLD_ABI 0x100 ++ ++/* Other constants defined in the ARM ELF spec. version B-01. */ ++/* NB. These conflict with values defined above. */ ++#define EF_ARM_SYMSARESORTED 0x04 ++#define EF_ARM_DYNSYMSUSESEGIDX 0x08 ++#define EF_ARM_MAPSYMSFIRST 0x10 ++#define EF_ARM_EABIMASK 0XFF000000 ++ ++#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) ++#define EF_ARM_EABI_UNKNOWN 0x00000000 ++#define EF_ARM_EABI_VER1 0x01000000 ++#define EF_ARM_EABI_VER2 0x02000000 ++ ++/* Additional symbol types for Thumb */ ++#define STT_ARM_TFUNC 0xd ++ ++/* ARM-specific values for sh_flags */ ++#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ ++#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined ++ in the input to a link step */ ++ ++/* ARM-specific program header flags */ ++#define PF_ARM_SB 0x10000000 /* Segment contains the location ++ addressed by the static base */ ++ ++/* ARM relocs. */ ++#define R_ARM_NONE 0 /* No reloc */ ++#define R_ARM_PC24 1 /* PC relative 26 bit branch */ ++#define R_ARM_ABS32 2 /* Direct 32 bit */ ++#define R_ARM_REL32 3 /* PC relative 32 bit */ ++#define R_ARM_PC13 4 ++#define R_ARM_ABS16 5 /* Direct 16 bit */ ++#define R_ARM_ABS12 6 /* Direct 12 bit */ ++#define R_ARM_THM_ABS5 7 ++#define R_ARM_ABS8 8 /* Direct 8 bit */ ++#define R_ARM_SBREL32 9 ++#define R_ARM_THM_PC22 10 ++#define R_ARM_THM_PC8 11 ++#define R_ARM_AMP_VCALL9 12 ++#define R_ARM_SWI24 13 ++#define R_ARM_THM_SWI8 14 ++#define R_ARM_XPC25 15 ++#define R_ARM_THM_XPC22 16 ++#define R_ARM_COPY 20 /* Copy symbol at runtime */ ++#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ ++#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ ++#define R_ARM_RELATIVE 23 /* Adjust by program base */ ++#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ ++#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ ++#define R_ARM_GOT32 26 /* 32 bit GOT entry */ ++#define R_ARM_PLT32 27 /* 32 bit PLT address */ ++#define R_ARM_ALU_PCREL_7_0 32 ++#define R_ARM_ALU_PCREL_15_8 33 ++#define R_ARM_ALU_PCREL_23_15 34 ++#define R_ARM_LDR_SBREL_11_0 35 ++#define R_ARM_ALU_SBREL_19_12 36 ++#define R_ARM_ALU_SBREL_27_20 37 ++#define R_ARM_GNU_VTENTRY 100 ++#define R_ARM_GNU_VTINHERIT 101 ++#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ ++#define R_ARM_THM_PC9 103 /* thumb conditional branch */ ++#define R_ARM_RXPC25 249 ++#define R_ARM_RSBREL32 250 ++#define R_ARM_THM_RPC22 251 ++#define R_ARM_RREL32 252 ++#define R_ARM_RABS22 253 ++#define R_ARM_RPC24 254 ++#define R_ARM_RBASE 255 ++/* Keep this the last entry. */ ++#define R_ARM_NUM 256 ++ ++/* IA-64 specific declarations. */ ++ ++/* Processor specific flags for the Ehdr e_flags field. */ ++#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */ ++#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */ ++#define EF_IA_64_ARCH 0xff000000 /* arch. version mask */ ++ ++/* Processor specific values for the Phdr p_type field. */ ++#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */ ++#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */ ++ ++/* Processor specific flags for the Phdr p_flags field. */ ++#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */ ++ ++/* Processor specific values for the Shdr sh_type field. */ ++#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */ ++#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */ ++ ++/* Processor specific flags for the Shdr sh_flags field. */ ++#define SHF_IA_64_SHORT 0x10000000 /* section near gp */ ++#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */ ++ ++/* Processor specific values for the Dyn d_tag field. */ ++#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) ++#define DT_IA_64_NUM 1 ++ ++/* IA-64 relocations. */ ++#define R_IA64_NONE 0x00 /* none */ ++#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */ ++#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */ ++#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */ ++#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */ ++#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */ ++#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */ ++#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */ ++#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */ ++#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64 */ ++#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */ ++#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */ ++#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */ ++#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */ ++#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */ ++#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64 */ ++#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add imm22 */ ++#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */ ++#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */ ++#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */ ++#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */ ++#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */ ++#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */ ++#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */ ++#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */ ++#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */ ++#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call */ ++#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */ ++#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */ ++#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */ ++#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */ ++#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */ ++#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */ ++#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */ ++#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */ ++#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */ ++#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */ ++#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */ ++#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */ ++#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */ ++#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */ ++#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */ ++#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */ ++#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */ ++#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */ ++#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */ ++#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */ ++#define R_IA64_REL32MSB 0x6c /* data 4 + REL */ ++#define R_IA64_REL32LSB 0x6d /* data 4 + REL */ ++#define R_IA64_REL64MSB 0x6e /* data 8 + REL */ ++#define R_IA64_REL64LSB 0x6f /* data 8 + REL */ ++#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */ ++#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */ ++#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */ ++#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */ ++#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */ ++#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */ ++#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit inst */ ++#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */ ++#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */ ++#define R_IA64_COPY 0x84 /* copy relocation */ ++#define R_IA64_SUB 0x85 /* Addend and symbol difference */ ++#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */ ++#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */ ++#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */ ++#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */ ++#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */ ++#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */ ++#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */ ++#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */ ++#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */ ++#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */ ++#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */ ++#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */ ++#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */ ++#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */ ++#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */ ++#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */ ++#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */ ++#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */ ++#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ ++ ++/* SH specific declarations */ ++ ++/* SH relocs. */ ++#define R_SH_NONE 0 ++#define R_SH_DIR32 1 ++#define R_SH_REL32 2 ++#define R_SH_DIR8WPN 3 ++#define R_SH_IND12W 4 ++#define R_SH_DIR8WPL 5 ++#define R_SH_DIR8WPZ 6 ++#define R_SH_DIR8BP 7 ++#define R_SH_DIR8W 8 ++#define R_SH_DIR8L 9 ++#define R_SH_SWITCH16 25 ++#define R_SH_SWITCH32 26 ++#define R_SH_USES 27 ++#define R_SH_COUNT 28 ++#define R_SH_ALIGN 29 ++#define R_SH_CODE 30 ++#define R_SH_DATA 31 ++#define R_SH_LABEL 32 ++#define R_SH_SWITCH8 33 ++#define R_SH_GNU_VTINHERIT 34 ++#define R_SH_GNU_VTENTRY 35 ++#define R_SH_TLS_GD_32 144 ++#define R_SH_TLS_LD_32 145 ++#define R_SH_TLS_LDO_32 146 ++#define R_SH_TLS_IE_32 147 ++#define R_SH_TLS_LE_32 148 ++#define R_SH_TLS_DTPMOD32 149 ++#define R_SH_TLS_DTPOFF32 150 ++#define R_SH_TLS_TPOFF32 151 ++#define R_SH_GOT32 160 ++#define R_SH_PLT32 161 ++#define R_SH_COPY 162 ++#define R_SH_GLOB_DAT 163 ++#define R_SH_JMP_SLOT 164 ++#define R_SH_RELATIVE 165 ++#define R_SH_GOTOFF 166 ++#define R_SH_GOTPC 167 ++/* Keep this the last entry. */ ++#define R_SH_NUM 256 ++ ++/* Additional s390 relocs */ ++ ++#define R_390_NONE 0 /* No reloc. */ ++#define R_390_8 1 /* Direct 8 bit. */ ++#define R_390_12 2 /* Direct 12 bit. */ ++#define R_390_16 3 /* Direct 16 bit. */ ++#define R_390_32 4 /* Direct 32 bit. */ ++#define R_390_PC32 5 /* PC relative 32 bit. */ ++#define R_390_GOT12 6 /* 12 bit GOT offset. */ ++#define R_390_GOT32 7 /* 32 bit GOT offset. */ ++#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ ++#define R_390_COPY 9 /* Copy symbol at runtime. */ ++#define R_390_GLOB_DAT 10 /* Create GOT entry. */ ++#define R_390_JMP_SLOT 11 /* Create PLT entry. */ ++#define R_390_RELATIVE 12 /* Adjust by program base. */ ++#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ ++#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */ ++#define R_390_GOT16 15 /* 16 bit GOT offset. */ ++#define R_390_PC16 16 /* PC relative 16 bit. */ ++#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ ++#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ ++#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ ++#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ ++#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ ++#define R_390_64 22 /* Direct 64 bit. */ ++#define R_390_PC64 23 /* PC relative 64 bit. */ ++#define R_390_GOT64 24 /* 64 bit GOT offset. */ ++#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ ++#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ ++#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ ++#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ ++#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ ++#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ ++#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ ++#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ ++#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ ++#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ ++#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ ++#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ ++#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ ++#define R_390_TLS_GDCALL 38 /* Tag for function call in general ++ dynamic TLS code. */ ++#define R_390_TLS_LDCALL 39 /* Tag for function call in local ++ dynamic TLS code. */ ++#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic ++ thread local data. */ ++#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic ++ thread local data. */ ++#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS ++ block offset. */ ++#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS ++ block offset. */ ++#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS ++ block offset. */ ++#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic ++ thread local data in LE code. */ ++#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic ++ thread local data in LE code. */ ++#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for ++ negated static TLS block offset. */ ++#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for ++ negated static TLS block offset. */ ++#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for ++ negated static TLS block offset. */ ++#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to ++ static TLS block. */ ++#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to ++ static TLS block. */ ++#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS ++ block. */ ++#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS ++ block. */ ++#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ ++#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ ++#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS ++ block. */ ++ ++/* Keep this the last entry. */ ++#define R_390_NUM 57 ++ ++/* CRIS relocations. */ ++#define R_CRIS_NONE 0 ++#define R_CRIS_8 1 ++#define R_CRIS_16 2 ++#define R_CRIS_32 3 ++#define R_CRIS_8_PCREL 4 ++#define R_CRIS_16_PCREL 5 ++#define R_CRIS_32_PCREL 6 ++#define R_CRIS_GNU_VTINHERIT 7 ++#define R_CRIS_GNU_VTENTRY 8 ++#define R_CRIS_COPY 9 ++#define R_CRIS_GLOB_DAT 10 ++#define R_CRIS_JUMP_SLOT 11 ++#define R_CRIS_RELATIVE 12 ++#define R_CRIS_16_GOT 13 ++#define R_CRIS_32_GOT 14 ++#define R_CRIS_16_GOTPLT 15 ++#define R_CRIS_32_GOTPLT 16 ++#define R_CRIS_32_GOTREL 17 ++#define R_CRIS_32_PLT_GOTREL 18 ++#define R_CRIS_32_PLT_PCREL 19 ++ ++#define R_CRIS_NUM 20 ++ ++/* AMD x86-64 relocations. */ ++#define R_X86_64_NONE 0 /* No reloc */ ++#define R_X86_64_64 1 /* Direct 64 bit */ ++#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ ++#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ ++#define R_X86_64_PLT32 4 /* 32 bit PLT address */ ++#define R_X86_64_COPY 5 /* Copy symbol at runtime */ ++#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ ++#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ ++#define R_X86_64_RELATIVE 8 /* Adjust by program base */ ++#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative ++ offset to GOT */ ++#define R_X86_64_32 10 /* Direct 32 bit zero extended */ ++#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ ++#define R_X86_64_16 12 /* Direct 16 bit zero extended */ ++#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ ++#define R_X86_64_8 14 /* Direct 8 bit sign extended */ ++#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ ++#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ ++#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ ++#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ ++#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset ++ to two GOT entries for GD symbol */ ++#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset ++ to two GOT entries for LD symbol */ ++#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ ++#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset ++ to GOT entry for IE symbol */ ++#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ ++ ++#define R_X86_64_NUM 24 ++ ++__END_DECLS ++ ++#endif /* elf.h */ + + #include "elfconfig.h" + +@@ -185,3 +2631,4 @@ + void fatal(const char *fmt, ...); + void warn(const char *fmt, ...); + void merror(const char *fmt, ...); ++ +diff -Nur linux-3.11.5.orig/scripts/mod/sumversion.c linux-3.11.5/scripts/mod/sumversion.c +--- linux-3.11.5.orig/scripts/mod/sumversion.c 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/scripts/mod/sumversion.c 2013-10-16 18:09:31.000000000 +0200 +@@ -1,4 +1,4 @@ +-#include ++/* #include */ + #ifdef __sun__ + #include + #else +diff -Nur linux-3.11.5.orig/tools/include/tools/linux_types.h linux-3.11.5/tools/include/tools/linux_types.h +--- linux-3.11.5.orig/tools/include/tools/linux_types.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.11.5/tools/include/tools/linux_types.h 2013-10-16 18:09:31.000000000 +0200 +@@ -0,0 +1,22 @@ ++#ifndef __LINUX_TYPES_H ++#define __LINUX_TYPES_H ++ ++#include ++ ++typedef uint8_t __u8; ++typedef uint8_t __be8; ++typedef uint8_t __le8; ++ ++typedef uint16_t __u16; ++typedef uint16_t __be16; ++typedef uint16_t __le16; ++ ++typedef uint32_t __u32; ++typedef uint32_t __be32; ++typedef uint32_t __le32; ++ ++typedef uint64_t __u64; ++typedef uint64_t __be64; ++typedef uint64_t __le64; ++ ++#endif diff --git a/target/linux/patches/3.15-rc8/cleankernel.patch b/target/linux/patches/3.15-rc8/cleankernel.patch new file mode 100644 index 000000000..d8c055dc3 --- /dev/null +++ b/target/linux/patches/3.15-rc8/cleankernel.patch @@ -0,0 +1,11 @@ +diff -Nur linux-3.11.5.orig/scripts/Makefile.headersinst linux-3.11.5/scripts/Makefile.headersinst +--- linux-3.11.5.orig/scripts/Makefile.headersinst 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/scripts/Makefile.headersinst 2013-10-15 16:33:10.000000000 +0200 +@@ -107,7 +107,6 @@ + + targets += $(install-file) + $(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE +- $(if $(unwanted),$(call cmd,remove),) + $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) + $(call if_changed,install) + diff --git a/target/linux/patches/3.15-rc8/defaults.patch b/target/linux/patches/3.15-rc8/defaults.patch new file mode 100644 index 000000000..6cdca084e --- /dev/null +++ b/target/linux/patches/3.15-rc8/defaults.patch @@ -0,0 +1,46 @@ +diff -Nur linux-3.0.4.orig/fs/Kconfig linux-3.0.4/fs/Kconfig +--- linux-3.0.4.orig/fs/Kconfig 2011-08-29 22:56:30.000000000 +0200 ++++ linux-3.0.4/fs/Kconfig 2011-10-15 22:08:44.000000000 +0200 +@@ -47,7 +47,7 @@ + def_bool n + + config EXPORTFS +- tristate ++ def_bool y + + config FILE_LOCKING + bool "Enable POSIX file locking API" if EXPERT +diff -Nur linux-3.0.4.orig/fs/notify/Kconfig linux-3.0.4/fs/notify/Kconfig +--- linux-3.0.4.orig/fs/notify/Kconfig 2011-08-29 22:56:30.000000000 +0200 ++++ linux-3.0.4/fs/notify/Kconfig 2011-10-15 22:02:00.000000000 +0200 +@@ -1,5 +1,5 @@ + config FSNOTIFY +- def_bool n ++ def_bool y + + source "fs/notify/dnotify/Kconfig" + source "fs/notify/inotify/Kconfig" +diff -Nur linux-3.11.10.orig/drivers/scsi/Kconfig linux-3.11.10/drivers/scsi/Kconfig +--- linux-3.11.10.orig/drivers/scsi/Kconfig 2013-11-29 19:42:37.000000000 +0100 ++++ linux-3.11.10/drivers/scsi/Kconfig 2013-12-27 19:13:21.000000000 +0100 +@@ -2,7 +2,7 @@ + + config SCSI_MOD + tristate +- default y if SCSI=n || SCSI=y ++ default y if SCSI=y + default m if SCSI=m + + config RAID_ATTRS +diff -Nur linux-3.11.10.orig/usr/Kconfig linux-3.11.10/usr/Kconfig +--- linux-3.11.10.orig/usr/Kconfig 2013-11-29 19:42:37.000000000 +0100 ++++ linux-3.11.10/usr/Kconfig 2013-12-27 19:15:16.000000000 +0100 +@@ -47,7 +47,7 @@ + + config RD_GZIP + bool "Support initial ramdisks compressed using gzip" if EXPERT +- default y ++ default n + depends on BLK_DEV_INITRD + select DECOMPRESS_GZIP + help diff --git a/target/linux/patches/3.15-rc8/disable-netfilter.patch b/target/linux/patches/3.15-rc8/disable-netfilter.patch new file mode 100644 index 000000000..7b1ca013a --- /dev/null +++ b/target/linux/patches/3.15-rc8/disable-netfilter.patch @@ -0,0 +1,160 @@ +diff -Nur linux-3.7.3.orig/net/Kconfig linux-3.7.3/net/Kconfig +--- linux-3.7.3.orig/net/Kconfig 2013-01-17 17:47:40.000000000 +0100 ++++ linux-3.7.3/net/Kconfig 2013-01-19 18:19:55.000000000 +0100 +@@ -163,7 +163,7 @@ + config NETFILTER_ADVANCED + bool "Advanced netfilter configuration" + depends on NETFILTER +- default y ++ default n + help + If you say Y here you can select between all the netfilter modules. + If you say N the more unusual ones will not be shown and the +@@ -175,7 +175,7 @@ + bool "Bridged IP/ARP packets filtering" + depends on BRIDGE && NETFILTER && INET + depends on NETFILTER_ADVANCED +- default y ++ default n + ---help--- + Enabling this option will let arptables resp. iptables see bridged + ARP resp. IP traffic. If you want a bridging firewall, you probably +diff -Nur linux-3.7.3.orig/net/netfilter/Kconfig linux-3.7.3/net/netfilter/Kconfig +--- linux-3.7.3.orig/net/netfilter/Kconfig 2013-01-17 17:47:40.000000000 +0100 ++++ linux-3.7.3/net/netfilter/Kconfig 2013-01-19 18:21:41.000000000 +0100 +@@ -22,7 +22,6 @@ + + config NETFILTER_NETLINK_LOG + tristate "Netfilter LOG over NFNETLINK interface" +- default m if NETFILTER_ADVANCED=n + select NETFILTER_NETLINK + help + If this option is enabled, the kernel will include support +@@ -34,7 +33,6 @@ + + config NF_CONNTRACK + tristate "Netfilter connection tracking support" +- default m if NETFILTER_ADVANCED=n + help + Connection tracking keeps a record of what packets have passed + through your machine, in order to figure out how they are related +@@ -60,7 +58,6 @@ + config NF_CONNTRACK_SECMARK + bool 'Connection tracking security mark support' + depends on NETWORK_SECMARK +- default m if NETFILTER_ADVANCED=n + help + This option enables security markings to be applied to + connections. Typically they are copied to connections from +@@ -177,7 +174,6 @@ + + config NF_CONNTRACK_FTP + tristate "FTP protocol support" +- default m if NETFILTER_ADVANCED=n + help + Tracking FTP connections is problematic: special helpers are + required for tracking them, and doing masquerading and other forms +@@ -211,7 +207,6 @@ + + config NF_CONNTRACK_IRC + tristate "IRC protocol support" +- default m if NETFILTER_ADVANCED=n + help + There is a commonly-used extension to IRC called + Direct Client-to-Client Protocol (DCC). This enables users to send +@@ -296,7 +291,6 @@ + + config NF_CONNTRACK_SIP + tristate "SIP protocol support" +- default m if NETFILTER_ADVANCED=n + help + SIP is an application-layer control protocol that can establish, + modify, and terminate multimedia sessions (conferences) such as +@@ -320,7 +314,6 @@ + config NF_CT_NETLINK + tristate 'Connection tracking netlink interface' + select NETFILTER_NETLINK +- default m if NETFILTER_ADVANCED=n + help + This option enables support for a netlink-based userspace interface + +@@ -424,7 +417,6 @@ + + config NETFILTER_XTABLES + tristate "Netfilter Xtables support (required for ip_tables)" +- default m if NETFILTER_ADVANCED=n + help + This is required if you intend to use any of ip_tables, + ip6_tables or arp_tables. +@@ -435,7 +427,6 @@ + + config NETFILTER_XT_MARK + tristate 'nfmark target and match support' +- default m if NETFILTER_ADVANCED=n + ---help--- + This option adds the "MARK" target and "mark" match. + +@@ -527,7 +518,6 @@ + config NETFILTER_XT_TARGET_CONNSECMARK + tristate '"CONNSECMARK" target support' + depends on NF_CONNTRACK && NF_CONNTRACK_SECMARK +- default m if NETFILTER_ADVANCED=n + help + The CONNSECMARK target copies security markings from packets + to connections, and restores security markings from connections +@@ -632,7 +622,6 @@ + + config NETFILTER_XT_TARGET_LOG + tristate "LOG target support" +- default m if NETFILTER_ADVANCED=n + help + This option adds a `LOG' target, which allows you to create rules in + any iptables table which records the packet header to the syslog. +@@ -660,7 +649,6 @@ + + config NETFILTER_XT_TARGET_NFLOG + tristate '"NFLOG" target support' +- default m if NETFILTER_ADVANCED=n + select NETFILTER_NETLINK_LOG + help + This option enables the NFLOG target, which allows to LOG +@@ -741,7 +729,6 @@ + config NETFILTER_XT_TARGET_SECMARK + tristate '"SECMARK" target support' + depends on NETWORK_SECMARK +- default m if NETFILTER_ADVANCED=n + help + The SECMARK target allows security marking of network + packets, for use with security subsystems. +@@ -751,7 +738,6 @@ + config NETFILTER_XT_TARGET_TCPMSS + tristate '"TCPMSS" target support' + depends on (IPV6 || IPV6=n) +- default m if NETFILTER_ADVANCED=n + ---help--- + This option adds a `TCPMSS' target, which allows you to alter the + MSS value of TCP SYN packets, to control the maximum size for that +@@ -856,7 +842,6 @@ + config NETFILTER_XT_MATCH_CONNTRACK + tristate '"conntrack" connection tracking match support' + depends on NF_CONNTRACK +- default m if NETFILTER_ADVANCED=n + help + This is a general conntrack match module, a superset of the state match. + +@@ -1063,7 +1048,6 @@ + config NETFILTER_XT_MATCH_POLICY + tristate 'IPsec "policy" match support' + depends on XFRM +- default m if NETFILTER_ADVANCED=n + help + Policy matching allows you to match packets based on the + IPsec policy that was used during decapsulation/will +@@ -1170,7 +1154,6 @@ + config NETFILTER_XT_MATCH_STATE + tristate '"state" match support' + depends on NF_CONNTRACK +- default m if NETFILTER_ADVANCED=n + help + Connection state matching allows you to match packets based on their + relationship to a tracked connection (ie. previous packets). This diff --git a/target/linux/patches/3.15-rc8/export-symbol-for-exmap.patch b/target/linux/patches/3.15-rc8/export-symbol-for-exmap.patch new file mode 100644 index 000000000..4f0fc8449 --- /dev/null +++ b/target/linux/patches/3.15-rc8/export-symbol-for-exmap.patch @@ -0,0 +1,11 @@ +diff -Nur linux-3.11.5.orig/kernel/pid.c linux-3.11.5/kernel/pid.c +--- linux-3.11.5.orig/kernel/pid.c 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/kernel/pid.c 2013-10-29 15:37:02.000000000 +0100 +@@ -450,6 +450,7 @@ + { + return find_task_by_pid_ns(vnr, task_active_pid_ns(current)); + } ++EXPORT_SYMBOL(find_task_by_vpid); + + struct pid *get_task_pid(struct task_struct *task, enum pid_type type) + { diff --git a/target/linux/patches/3.15-rc8/gemalto.patch b/target/linux/patches/3.15-rc8/gemalto.patch new file mode 100644 index 000000000..65f7af1d7 --- /dev/null +++ b/target/linux/patches/3.15-rc8/gemalto.patch @@ -0,0 +1,11 @@ +diff -Nur linux-2.6.36.orig/drivers/tty/serial/8250/serial_cs.c linux-2.6.36/drivers/serial/8250/serial_cs.c +--- linux-2.6.36.orig/drivers/tty/serial/8250/serial_cs.c 2010-10-20 22:30:22.000000000 +0200 ++++ linux-2.6.36/drivers/tty/serial/8250/serial_cs.c 2010-12-13 23:03:40.000000000 +0100 +@@ -794,6 +794,7 @@ + PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0025), + PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0045), + PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0052), ++ PCMCIA_DEVICE_MANF_CARD(0x0157, 0x0100), /* Gemalto SCR */ + PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0006), /* Psion 56K+Fax */ + PCMCIA_DEVICE_MANF_CARD(0x0200, 0x0001), /* MultiMobile */ + PCMCIA_DEVICE_PROD_ID134("ADV", "TECH", "COMpad-32/85", 0x67459937, 0x916d02ba, 0x8fbe92ae), diff --git a/target/linux/patches/3.15-rc8/initramfs-nosizelimit.patch b/target/linux/patches/3.15-rc8/initramfs-nosizelimit.patch new file mode 100644 index 000000000..40d2f6bd8 --- /dev/null +++ b/target/linux/patches/3.15-rc8/initramfs-nosizelimit.patch @@ -0,0 +1,57 @@ +From 9a18df7a71bfa620b1278777d64783a359d7eb4e Mon Sep 17 00:00:00 2001 +From: Thorsten Glaser +Date: Sun, 4 May 2014 01:37:54 +0200 +Subject: [PATCH] mount tmpfs-as-rootfs (initramfs) with -o + nr_blocks=0,nr_inodes=0 + +I would have preferred to write this patch to be able to pass +rootflags=nr_blocks=0,nr_inodes=0 on the kernel command line, +and then hand these rootflags over to the initramfs (tmpfs) +mount in the same way the kernel hands them over to the block +device rootfs mount. But at least the Debian/m68k initrd also +parses $rootflags from the environment and adds it to the call +to the user-space mount for the eventual root device, which +would make the kernel command line rootflags option be used in +both places (tmpfs and e.g. ext4) which is guaranteed to error +out in at least one of them. + +This change is intended to aid people in a setup where the +initrd is the final root filesystem, i.e. not mounted over. +This is especially useful in automated tests running on qemu +for boards with constrained memory (e.g. 64 MiB on sh4). + +Considering that the initramfs is normally emptied out then +overmounted, this change is probably safe for setups where +initramfs just hosts early userspace, too, since the tmpfs +backing it is not accessible any more later on, AFAICT. + +Signed-off-by: Thorsten Glaser +--- + init/do_mounts.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/init/do_mounts.c b/init/do_mounts.c +index 82f2288..55a4cfe 100644 +--- a/init/do_mounts.c ++++ b/init/do_mounts.c +@@ -594,6 +594,7 @@ out: + } + + static bool is_tmpfs; ++static char tmpfs_rootflags[] = "nr_blocks=0,nr_inodes=0"; + static struct dentry *rootfs_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) + { +@@ -606,6 +607,9 @@ static struct dentry *rootfs_mount(struct file_system_type *fs_type, + if (IS_ENABLED(CONFIG_TMPFS) && is_tmpfs) + fill = shmem_fill_super; + ++ if (is_tmpfs) ++ data = tmpfs_rootflags; ++ + return mount_nodev(fs_type, flags, data, fill); + } + +-- +2.0.0.rc0 + diff --git a/target/linux/patches/3.15-rc8/lemote-rfkill.patch b/target/linux/patches/3.15-rc8/lemote-rfkill.patch new file mode 100644 index 000000000..a61488434 --- /dev/null +++ b/target/linux/patches/3.15-rc8/lemote-rfkill.patch @@ -0,0 +1,21 @@ +diff -Nur linux-3.3.orig/drivers/net/wireless/rtl818x/rtl8187/rfkill.c linux-3.3/drivers/net/wireless/rtl818x/rtl8187/rfkill.c +--- linux-3.3.orig/drivers/net/wireless/rtl818x/rtl8187/rfkill.c 2012-03-19 00:15:34.000000000 +0100 ++++ linux-3.3/drivers/net/wireless/rtl818x/rtl8187/rfkill.c 2012-03-27 23:29:46.000000000 +0200 +@@ -22,6 +22,9 @@ + + static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv) + { ++#ifdef CONFIG_LEMOTE_MACH2F ++ return 1; ++#else + u8 gpio; + + gpio = rtl818x_ioread8(priv, &priv->map->GPIO0); +@@ -29,6 +32,7 @@ + gpio = rtl818x_ioread8(priv, &priv->map->GPIO1); + + return gpio & priv->rfkill_mask; ++#endif + } + + void rtl8187_rfkill_init(struct ieee80211_hw *hw) diff --git a/target/linux/patches/3.15-rc8/microblaze-axi.patch b/target/linux/patches/3.15-rc8/microblaze-axi.patch new file mode 100644 index 000000000..1a4b17d8c --- /dev/null +++ b/target/linux/patches/3.15-rc8/microblaze-axi.patch @@ -0,0 +1,11 @@ +diff -Nur linux-3.13.3.orig/drivers/net/ethernet/xilinx/xilinx_axienet_main.c linux-3.13.3/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +--- linux-3.13.3.orig/drivers/net/ethernet/xilinx/xilinx_axienet_main.c 2014-02-13 23:00:14.000000000 +0100 ++++ linux-3.13.3/drivers/net/ethernet/xilinx/xilinx_axienet_main.c 2014-02-24 08:03:57.000000000 +0100 +@@ -25,6 +25,7 @@ + #include + #include + #include ++#include + #include + #include + #include diff --git a/target/linux/patches/3.15-rc8/microblaze-ethernet.patch b/target/linux/patches/3.15-rc8/microblaze-ethernet.patch new file mode 100644 index 000000000..742ab477e --- /dev/null +++ b/target/linux/patches/3.15-rc8/microblaze-ethernet.patch @@ -0,0 +1,11 @@ +diff -Nur linux-3.11.10.orig/drivers/net/ethernet/xilinx/xilinx_emaclite.c linux-3.11.10/drivers/net/ethernet/xilinx/xilinx_emaclite.c +--- linux-3.11.10.orig/drivers/net/ethernet/xilinx/xilinx_emaclite.c 2013-11-29 19:42:37.000000000 +0100 ++++ linux-3.11.10/drivers/net/ethernet/xilinx/xilinx_emaclite.c 2013-12-23 20:01:14.000000000 +0100 +@@ -1282,6 +1282,7 @@ + { .compatible = "xlnx,opb-ethernetlite-1.01.b", }, + { .compatible = "xlnx,xps-ethernetlite-1.00.a", }, + { .compatible = "xlnx,xps-ethernetlite-2.00.a", }, ++ { .compatible = "xlnx,xps-ethernetlite-2.00.b", }, + { .compatible = "xlnx,xps-ethernetlite-2.01.a", }, + { .compatible = "xlnx,xps-ethernetlite-3.00.a", }, + { /* end of list */ }, diff --git a/target/linux/patches/3.15-rc8/mkpiggy.patch b/target/linux/patches/3.15-rc8/mkpiggy.patch new file mode 100644 index 000000000..751678b74 --- /dev/null +++ b/target/linux/patches/3.15-rc8/mkpiggy.patch @@ -0,0 +1,28 @@ +diff -Nur linux-3.13.3.orig/arch/x86/boot/compressed/mkpiggy.c linux-3.13.3/arch/x86/boot/compressed/mkpiggy.c +--- linux-3.13.3.orig/arch/x86/boot/compressed/mkpiggy.c 2014-02-13 23:00:14.000000000 +0100 ++++ linux-3.13.3/arch/x86/boot/compressed/mkpiggy.c 2014-02-17 11:09:06.000000000 +0100 +@@ -29,7 +29,14 @@ + #include + #include + #include +-#include ++ ++static uint32_t getle32(const void *p) ++{ ++ const uint8_t *cp = p; ++ ++ return (uint32_t)cp[0] + ((uint32_t)cp[1] << 8) + ++ ((uint32_t)cp[2] << 16) + ((uint32_t)cp[3] << 24); ++} + + int main(int argc, char *argv[]) + { +@@ -63,7 +70,7 @@ + } + + ilen = ftell(f); +- olen = get_unaligned_le32(&olen); ++ olen = getle32(&olen); + + /* + * Now we have the input (compressed) and output (uncompressed) diff --git a/target/linux/patches/3.15-rc8/mtd-rootfs.patch b/target/linux/patches/3.15-rc8/mtd-rootfs.patch new file mode 100644 index 000000000..775d5fc80 --- /dev/null +++ b/target/linux/patches/3.15-rc8/mtd-rootfs.patch @@ -0,0 +1,26 @@ +diff -Nur linux-3.5.orig//drivers/mtd/mtdpart.c linux-3.5/drivers/mtd/mtdpart.c +--- linux-3.5.orig//drivers/mtd/mtdpart.c 2012-07-21 22:58:29.000000000 +0200 ++++ linux-3.5/drivers/mtd/mtdpart.c 2012-07-31 23:59:07.000000000 +0200 +@@ -30,6 +30,7 @@ + #include + #include + #include ++#include + + #include "mtdcore.h" + +@@ -637,6 +638,14 @@ + if (IS_ERR(slave)) + return PTR_ERR(slave); + ++ if (strcmp(parts[i].name, "rootfs") == 0) { ++ if (ROOT_DEV == 0) { ++ printk(KERN_NOTICE "mtd: partition \"rootfs\" " ++ "set to be root filesystem\n"); ++ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, i); ++ } ++ } ++ + mutex_lock(&mtd_partitions_mutex); + list_add(&slave->list, &mtd_partitions); + mutex_unlock(&mtd_partitions_mutex); diff --git a/target/linux/patches/3.15-rc8/nfsv3-tcp.patch b/target/linux/patches/3.15-rc8/nfsv3-tcp.patch new file mode 100644 index 000000000..d5e07e1c2 --- /dev/null +++ b/target/linux/patches/3.15-rc8/nfsv3-tcp.patch @@ -0,0 +1,12 @@ +diff -Nur linux-3.15-rc5.orig/fs/nfs/nfsroot.c linux-3.15-rc5/fs/nfs/nfsroot.c +--- linux-3.15-rc5.orig/fs/nfs/nfsroot.c 2014-05-09 22:10:52.000000000 +0200 ++++ linux-3.15-rc5/fs/nfs/nfsroot.c 2014-05-16 15:45:38.000000000 +0200 +@@ -87,7 +87,7 @@ + #define NFS_ROOT "/tftpboot/%s" + + /* Default NFSROOT mount options. */ +-#define NFS_DEF_OPTIONS "vers=2,udp,rsize=4096,wsize=4096" ++#define NFS_DEF_OPTIONS "nfsvers=3,proto=tcp,rsize=4096,wsize=4096" + + /* Parameters passed from the kernel command line */ + static char nfs_root_parms[256] __initdata = ""; diff --git a/target/linux/patches/3.15-rc8/non-static.patch b/target/linux/patches/3.15-rc8/non-static.patch new file mode 100644 index 000000000..a967703d0 --- /dev/null +++ b/target/linux/patches/3.15-rc8/non-static.patch @@ -0,0 +1,33 @@ +diff -Nur linux-2.6.39-rc6.orig/fs/namei.c linux-2.6.39-rc6/fs/namei.c +--- linux-2.6.39-rc6.orig/fs/namei.c 2011-05-04 04:59:13.000000000 +0200 ++++ linux-2.6.39-rc6/fs/namei.c 2011-05-05 11:30:14.000000000 +0200 +@@ -1769,7 +1769,7 @@ + * needs parent already locked. Doesn't follow mounts. + * SMP-safe. + */ +-static struct dentry *lookup_hash(struct nameidata *nd) ++struct dentry *lookup_hash(struct nameidata *nd) + { + return __lookup_hash(&nd->last, nd->path.dentry, nd); + } +diff -Nur linux-2.6.39-rc6.orig/fs/splice.c linux-2.6.39-rc6/fs/splice.c +--- linux-2.6.39-rc6.orig/fs/splice.c 2011-05-04 04:59:13.000000000 +0200 ++++ linux-2.6.39-rc6/fs/splice.c 2011-05-05 11:31:04.000000000 +0200 +@@ -1081,7 +1081,7 @@ + /* + * Attempt to initiate a splice from pipe to file. + */ +-static long do_splice_from(struct pipe_inode_info *pipe, struct file *out, ++long do_splice_from(struct pipe_inode_info *pipe, struct file *out, + loff_t *ppos, size_t len, unsigned int flags) + { + ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, +@@ -1109,7 +1109,7 @@ + /* + * Attempt to initiate a splice from a file to a pipe. + */ +-static long do_splice_to(struct file *in, loff_t *ppos, ++long do_splice_to(struct file *in, loff_t *ppos, + struct pipe_inode_info *pipe, size_t len, + unsigned int flags) + { diff --git a/target/linux/patches/3.15-rc8/patch-yaffs2 b/target/linux/patches/3.15-rc8/patch-yaffs2 new file mode 100644 index 000000000..bb244c7ca --- /dev/null +++ b/target/linux/patches/3.15-rc8/patch-yaffs2 @@ -0,0 +1,16551 @@ +diff -Nur linux-3.15-rc5.orig/fs/Kconfig linux-3.15-rc5/fs/Kconfig +--- linux-3.15-rc5.orig/fs/Kconfig 2014-05-09 22:10:52.000000000 +0200 ++++ linux-3.15-rc5/fs/Kconfig 2014-05-17 01:53:17.000000000 +0200 +@@ -190,6 +190,7 @@ + source "fs/befs/Kconfig" + source "fs/bfs/Kconfig" + source "fs/efs/Kconfig" ++source "fs/yaffs2/Kconfig" + source "fs/jffs2/Kconfig" + # UBIFS File system configuration + source "fs/ubifs/Kconfig" +diff -Nur linux-3.15-rc5.orig/fs/Makefile linux-3.15-rc5/fs/Makefile +--- linux-3.15-rc5.orig/fs/Makefile 2014-05-09 22:10:52.000000000 +0200 ++++ linux-3.15-rc5/fs/Makefile 2014-05-17 01:53:25.000000000 +0200 +@@ -126,3 +126,4 @@ + obj-$(CONFIG_CEPH_FS) += ceph/ + obj-$(CONFIG_PSTORE) += pstore/ + obj-$(CONFIG_EFIVAR_FS) += efivarfs/ ++obj-$(CONFIG_YAFFS_FS) += yaffs2/ +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/Kconfig linux-3.15-rc5/fs/yaffs2/Kconfig +--- linux-3.15-rc5.orig/fs/yaffs2/Kconfig 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/Kconfig 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,171 @@ ++# ++# yaffs file system configurations ++# ++ ++config YAFFS_FS ++ tristate "yaffs2 file system support" ++ default n ++ depends on MTD_BLOCK ++ select YAFFS_YAFFS1 ++ select YAFFS_YAFFS2 ++ help ++ yaffs2, or Yet Another Flash File System, is a file system ++ optimised for NAND Flash chips. ++ ++ To compile the yaffs2 file system support as a module, choose M ++ here: the module will be called yaffs2. ++ ++ If unsure, say N. ++ ++ Further information on yaffs2 is available at ++ . ++ ++config YAFFS_YAFFS1 ++ bool "512 byte / page devices" ++ depends on YAFFS_FS ++ default y ++ help ++ Enable yaffs1 support -- yaffs for 512 byte / page devices ++ ++ Not needed for 2K-page devices. ++ ++ If unsure, say Y. ++ ++config YAFFS_9BYTE_TAGS ++ bool "Use older-style on-NAND data format with pageStatus byte" ++ depends on YAFFS_YAFFS1 ++ default n ++ help ++ ++ Older-style on-NAND data format has a "pageStatus" byte to record ++ chunk/page state. This byte is zero when the page is discarded. ++ Choose this option if you have existing on-NAND data using this ++ format that you need to continue to support. New data written ++ also uses the older-style format. Note: Use of this option ++ generally requires that MTD's oob layout be adjusted to use the ++ older-style format. See notes on tags formats and MTD versions ++ in yaffs_mtdif1.c. ++ ++ If unsure, say N. ++ ++config YAFFS_DOES_ECC ++ bool "Lets yaffs do its own ECC" ++ depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS ++ default n ++ help ++ This enables yaffs to use its own ECC functions instead of using ++ the ones from the generic MTD-NAND driver. ++ ++ If unsure, say N. ++ ++config YAFFS_ECC_WRONG_ORDER ++ bool "Use the same ecc byte order as Steven Hill's nand_ecc.c" ++ depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS ++ default n ++ help ++ This makes yaffs_ecc.c use the same ecc byte order as Steven ++ Hill's nand_ecc.c. If not set, then you get the same ecc byte ++ order as SmartMedia. ++ ++ If unsure, say N. ++ ++config YAFFS_YAFFS2 ++ bool "2048 byte (or larger) / page devices" ++ depends on YAFFS_FS ++ default y ++ help ++ Enable yaffs2 support -- yaffs for >= 2K bytes per page devices ++ ++ If unsure, say Y. ++ ++config YAFFS_AUTO_YAFFS2 ++ bool "Autoselect yaffs2 format" ++ depends on YAFFS_YAFFS2 ++ default y ++ help ++ Without this, you need to explicitely use yaffs2 as the file ++ system type. With this, you can say "yaffs" and yaffs or yaffs2 ++ will be used depending on the device page size (yaffs on ++ 512-byte page devices, yaffs2 on 2K page devices). ++ ++ If unsure, say Y. ++ ++config YAFFS_DISABLE_TAGS_ECC ++ bool "Disable yaffs from doing ECC on tags by default" ++ depends on YAFFS_FS && YAFFS_YAFFS2 ++ default n ++ help ++ This defaults yaffs to using its own ECC calculations on tags instead of ++ just relying on the MTD. ++ This behavior can also be overridden with tags_ecc_on and ++ tags_ecc_off mount options. ++ ++ If unsure, say N. ++ ++config YAFFS_ALWAYS_CHECK_CHUNK_ERASED ++ bool "Force chunk erase check" ++ depends on YAFFS_FS ++ default n ++ help ++ Normally yaffs only checks chunks before writing until an erased ++ chunk is found. This helps to detect any partially written ++ chunks that might have happened due to power loss. ++ ++ Enabling this forces on the test that chunks are erased in flash ++ before writing to them. This takes more time but is potentially ++ a bit more secure. ++ ++ Suggest setting Y during development and ironing out driver ++ issues etc. Suggest setting to N if you want faster writing. ++ ++ If unsure, say Y. ++ ++config YAFFS_EMPTY_LOST_AND_FOUND ++ bool "Empty lost and found on boot" ++ depends on YAFFS_FS ++ default n ++ help ++ If this is enabled then the contents of lost and found is ++ automatically dumped at mount. ++ ++ If unsure, say N. ++ ++config YAFFS_DISABLE_BLOCK_REFRESHING ++ bool "Disable yaffs2 block refreshing" ++ depends on YAFFS_FS ++ default n ++ help ++ If this is set, then block refreshing is disabled. ++ Block refreshing infrequently refreshes the oldest block in ++ a yaffs2 file system. This mechanism helps to refresh flash to ++ mitigate against data loss. This is particularly useful for MLC. ++ ++ If unsure, say N. ++ ++config YAFFS_DISABLE_BACKGROUND ++ bool "Disable yaffs2 background processing" ++ depends on YAFFS_FS ++ default n ++ help ++ If this is set, then background processing is disabled. ++ Background processing makes many foreground activities faster. ++ ++ If unsure, say N. ++ ++config YAFFS_DISABLE_BAD_BLOCK_MARKING ++ bool "Disable yaffs2 bad block marking" ++ depends on YAFFS_FS ++ default n ++ help ++ Useful during early flash bring up to prevent problems causing ++ lots of bad block marking. ++ ++ If unsure, say N. ++ ++config YAFFS_XATTR ++ bool "Enable yaffs2 xattr support" ++ depends on YAFFS_FS ++ default y ++ help ++ If this is set then yaffs2 will provide xattr support. ++ If unsure, say Y. +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/Makefile linux-3.15-rc5/fs/yaffs2/Makefile +--- linux-3.15-rc5.orig/fs/yaffs2/Makefile 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/Makefile 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,18 @@ ++# ++# Makefile for the linux YAFFS filesystem routines. ++# ++ ++obj-$(CONFIG_YAFFS_FS) += yaffs.o ++ ++yaffs-y := yaffs_ecc.o yaffs_vfs.o yaffs_guts.o yaffs_checkptrw.o ++yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o ++yaffs-y += yaffs_tagscompat.o yaffs_tagsmarshall.o ++yaffs-y += yaffs_mtdif.o ++yaffs-y += yaffs_nameval.o yaffs_attribs.o ++yaffs-y += yaffs_allocator.o ++yaffs-y += yaffs_yaffs1.o ++yaffs-y += yaffs_yaffs2.o ++yaffs-y += yaffs_bitmap.o ++yaffs-y += yaffs_summary.o ++yaffs-y += yaffs_verify.o ++ +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.c linux-3.15-rc5/fs/yaffs2/yaffs_allocator.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_allocator.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,357 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_allocator.h" ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++#include "yportenv.h" ++ ++/* ++ * Each entry in yaffs_tnode_list and yaffs_obj_list hold blocks ++ * of approx 100 objects that are themn allocated singly. ++ * This is basically a simplified slab allocator. ++ * ++ * We don't use the Linux slab allocator because slab does not allow ++ * us to dump all the objects in one hit when we do a umount and tear ++ * down all the tnodes and objects. slab requires that we first free ++ * the individual objects. ++ * ++ * Once yaffs has been mainlined I shall try to motivate for a change ++ * to slab to provide the extra features we need here. ++ */ ++ ++struct yaffs_tnode_list { ++ struct yaffs_tnode_list *next; ++ struct yaffs_tnode *tnodes; ++}; ++ ++struct yaffs_obj_list { ++ struct yaffs_obj_list *next; ++ struct yaffs_obj *objects; ++}; ++ ++struct yaffs_allocator { ++ int n_tnodes_created; ++ struct yaffs_tnode *free_tnodes; ++ int n_free_tnodes; ++ struct yaffs_tnode_list *alloc_tnode_list; ++ ++ int n_obj_created; ++ struct list_head free_objs; ++ int n_free_objects; ++ ++ struct yaffs_obj_list *allocated_obj_list; ++}; ++ ++static void yaffs_deinit_raw_tnodes(struct yaffs_dev *dev) ++{ ++ struct yaffs_allocator *allocator = ++ (struct yaffs_allocator *)dev->allocator; ++ struct yaffs_tnode_list *tmp; ++ ++ if (!allocator) { ++ BUG(); ++ return; ++ } ++ ++ while (allocator->alloc_tnode_list) { ++ tmp = allocator->alloc_tnode_list->next; ++ ++ kfree(allocator->alloc_tnode_list->tnodes); ++ kfree(allocator->alloc_tnode_list); ++ allocator->alloc_tnode_list = tmp; ++ } ++ ++ allocator->free_tnodes = NULL; ++ allocator->n_free_tnodes = 0; ++ allocator->n_tnodes_created = 0; ++} ++ ++static void yaffs_init_raw_tnodes(struct yaffs_dev *dev) ++{ ++ struct yaffs_allocator *allocator = dev->allocator; ++ ++ if (!allocator) { ++ BUG(); ++ return; ++ } ++ ++ allocator->alloc_tnode_list = NULL; ++ allocator->free_tnodes = NULL; ++ allocator->n_free_tnodes = 0; ++ allocator->n_tnodes_created = 0; ++} ++ ++static int yaffs_create_tnodes(struct yaffs_dev *dev, int n_tnodes) ++{ ++ struct yaffs_allocator *allocator = ++ (struct yaffs_allocator *)dev->allocator; ++ int i; ++ struct yaffs_tnode *new_tnodes; ++ u8 *mem; ++ struct yaffs_tnode *curr; ++ struct yaffs_tnode *next; ++ struct yaffs_tnode_list *tnl; ++ ++ if (!allocator) { ++ BUG(); ++ return YAFFS_FAIL; ++ } ++ ++ if (n_tnodes < 1) ++ return YAFFS_OK; ++ ++ /* make these things */ ++ new_tnodes = kmalloc(n_tnodes * dev->tnode_size, GFP_NOFS); ++ mem = (u8 *) new_tnodes; ++ ++ if (!new_tnodes) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs: Could not allocate Tnodes"); ++ return YAFFS_FAIL; ++ } ++ ++ /* New hookup for wide tnodes */ ++ for (i = 0; i < n_tnodes - 1; i++) { ++ curr = (struct yaffs_tnode *)&mem[i * dev->tnode_size]; ++ next = (struct yaffs_tnode *)&mem[(i + 1) * dev->tnode_size]; ++ curr->internal[0] = next; ++ } ++ ++ curr = (struct yaffs_tnode *)&mem[(n_tnodes - 1) * dev->tnode_size]; ++ curr->internal[0] = allocator->free_tnodes; ++ allocator->free_tnodes = (struct yaffs_tnode *)mem; ++ ++ allocator->n_free_tnodes += n_tnodes; ++ allocator->n_tnodes_created += n_tnodes; ++ ++ /* Now add this bunch of tnodes to a list for freeing up. ++ * NB If we can't add this to the management list it isn't fatal ++ * but it just means we can't free this bunch of tnodes later. ++ */ ++ tnl = kmalloc(sizeof(struct yaffs_tnode_list), GFP_NOFS); ++ if (!tnl) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "Could not add tnodes to management list"); ++ return YAFFS_FAIL; ++ } else { ++ tnl->tnodes = new_tnodes; ++ tnl->next = allocator->alloc_tnode_list; ++ allocator->alloc_tnode_list = tnl; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_ALLOCATE, "Tnodes added"); ++ ++ return YAFFS_OK; ++} ++ ++struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev) ++{ ++ struct yaffs_allocator *allocator = ++ (struct yaffs_allocator *)dev->allocator; ++ struct yaffs_tnode *tn = NULL; ++ ++ if (!allocator) { ++ BUG(); ++ return NULL; ++ } ++ ++ /* If there are none left make more */ ++ if (!allocator->free_tnodes) ++ yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES); ++ ++ if (allocator->free_tnodes) { ++ tn = allocator->free_tnodes; ++ allocator->free_tnodes = allocator->free_tnodes->internal[0]; ++ allocator->n_free_tnodes--; ++ } ++ ++ return tn; ++} ++ ++/* FreeTnode frees up a tnode and puts it back on the free list */ ++void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn) ++{ ++ struct yaffs_allocator *allocator = dev->allocator; ++ ++ if (!allocator) { ++ BUG(); ++ return; ++ } ++ ++ if (tn) { ++ tn->internal[0] = allocator->free_tnodes; ++ allocator->free_tnodes = tn; ++ allocator->n_free_tnodes++; ++ } ++ dev->checkpoint_blocks_required = 0; /* force recalculation */ ++} ++ ++/*--------------- yaffs_obj alloaction ------------------------ ++ * ++ * Free yaffs_objs are stored in a list using obj->siblings. ++ * The blocks of allocated objects are stored in a linked list. ++ */ ++ ++static void yaffs_init_raw_objs(struct yaffs_dev *dev) ++{ ++ struct yaffs_allocator *allocator = dev->allocator; ++ ++ if (!allocator) { ++ BUG(); ++ return; ++ } ++ ++ allocator->allocated_obj_list = NULL; ++ INIT_LIST_HEAD(&allocator->free_objs); ++ allocator->n_free_objects = 0; ++} ++ ++static void yaffs_deinit_raw_objs(struct yaffs_dev *dev) ++{ ++ struct yaffs_allocator *allocator = dev->allocator; ++ struct yaffs_obj_list *tmp; ++ ++ if (!allocator) { ++ BUG(); ++ return; ++ } ++ ++ while (allocator->allocated_obj_list) { ++ tmp = allocator->allocated_obj_list->next; ++ kfree(allocator->allocated_obj_list->objects); ++ kfree(allocator->allocated_obj_list); ++ allocator->allocated_obj_list = tmp; ++ } ++ ++ INIT_LIST_HEAD(&allocator->free_objs); ++ allocator->n_free_objects = 0; ++ allocator->n_obj_created = 0; ++} ++ ++static int yaffs_create_free_objs(struct yaffs_dev *dev, int n_obj) ++{ ++ struct yaffs_allocator *allocator = dev->allocator; ++ int i; ++ struct yaffs_obj *new_objs; ++ struct yaffs_obj_list *list; ++ ++ if (!allocator) { ++ BUG(); ++ return YAFFS_FAIL; ++ } ++ ++ if (n_obj < 1) ++ return YAFFS_OK; ++ ++ /* make these things */ ++ new_objs = kmalloc(n_obj * sizeof(struct yaffs_obj), GFP_NOFS); ++ list = kmalloc(sizeof(struct yaffs_obj_list), GFP_NOFS); ++ ++ if (!new_objs || !list) { ++ kfree(new_objs); ++ new_objs = NULL; ++ kfree(list); ++ list = NULL; ++ yaffs_trace(YAFFS_TRACE_ALLOCATE, ++ "Could not allocate more objects"); ++ return YAFFS_FAIL; ++ } ++ ++ /* Hook them into the free list */ ++ for (i = 0; i < n_obj; i++) ++ list_add(&new_objs[i].siblings, &allocator->free_objs); ++ ++ allocator->n_free_objects += n_obj; ++ allocator->n_obj_created += n_obj; ++ ++ /* Now add this bunch of Objects to a list for freeing up. */ ++ ++ list->objects = new_objs; ++ list->next = allocator->allocated_obj_list; ++ allocator->allocated_obj_list = list; ++ ++ return YAFFS_OK; ++} ++ ++struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj = NULL; ++ struct list_head *lh; ++ struct yaffs_allocator *allocator = dev->allocator; ++ ++ if (!allocator) { ++ BUG(); ++ return obj; ++ } ++ ++ /* If there are none left make more */ ++ if (list_empty(&allocator->free_objs)) ++ yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS); ++ ++ if (!list_empty(&allocator->free_objs)) { ++ lh = allocator->free_objs.next; ++ obj = list_entry(lh, struct yaffs_obj, siblings); ++ list_del_init(lh); ++ allocator->n_free_objects--; ++ } ++ ++ return obj; ++} ++ ++void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj) ++{ ++ ++ struct yaffs_allocator *allocator = dev->allocator; ++ ++ if (!allocator) { ++ BUG(); ++ return; ++ } ++ ++ /* Link into the free list. */ ++ list_add(&obj->siblings, &allocator->free_objs); ++ allocator->n_free_objects++; ++} ++ ++void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev) ++{ ++ ++ if (!dev->allocator) { ++ BUG(); ++ return; ++ } ++ ++ yaffs_deinit_raw_tnodes(dev); ++ yaffs_deinit_raw_objs(dev); ++ kfree(dev->allocator); ++ dev->allocator = NULL; ++} ++ ++void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev) ++{ ++ struct yaffs_allocator *allocator; ++ ++ if (dev->allocator) { ++ BUG(); ++ return; ++ } ++ ++ allocator = kmalloc(sizeof(struct yaffs_allocator), GFP_NOFS); ++ if (allocator) { ++ dev->allocator = allocator; ++ yaffs_init_raw_tnodes(dev); ++ yaffs_init_raw_objs(dev); ++ } ++} ++ +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.h linux-3.15-rc5/fs/yaffs2/yaffs_allocator.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_allocator.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_allocator.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,30 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_ALLOCATOR_H__ ++#define __YAFFS_ALLOCATOR_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev); ++void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev); ++ ++struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev); ++void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn); ++ ++struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev); ++void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.c linux-3.15-rc5/fs/yaffs2/yaffs_attribs.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_attribs.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,166 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_guts.h" ++#include "yaffs_attribs.h" ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)) ++static inline uid_t ia_uid_read(const struct iattr *iattr) ++{ ++ return from_kuid(&init_user_ns, iattr->ia_uid); ++} ++ ++static inline gid_t ia_gid_read(const struct iattr *iattr) ++{ ++ return from_kgid(&init_user_ns, iattr->ia_gid); ++} ++ ++static inline void ia_uid_write(struct iattr *iattr, uid_t uid) ++{ ++ iattr->ia_uid = make_kuid(&init_user_ns, uid); ++} ++ ++static inline void ia_gid_write(struct iattr *iattr, gid_t gid) ++{ ++ iattr->ia_gid = make_kgid(&init_user_ns, gid); ++} ++#else ++static inline uid_t ia_uid_read(const struct iattr *iattr) ++{ ++ return iattr->ia_uid; ++} ++ ++static inline gid_t ia_gid_read(const struct iattr *inode) ++{ ++ return iattr->ia_gid; ++} ++ ++static inline void ia_uid_write(struct iattr *iattr, uid_t uid) ++{ ++ iattr->ia_uid = uid; ++} ++ ++static inline void ia_gid_write(struct iattr *iattr, gid_t gid) ++{ ++ iattr->ia_gid = gid; ++} ++#endif ++ ++void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh) ++{ ++ obj->yst_uid = oh->yst_uid; ++ obj->yst_gid = oh->yst_gid; ++ obj->yst_atime = oh->yst_atime; ++ obj->yst_mtime = oh->yst_mtime; ++ obj->yst_ctime = oh->yst_ctime; ++ obj->yst_rdev = oh->yst_rdev; ++} ++ ++void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj) ++{ ++ oh->yst_uid = obj->yst_uid; ++ oh->yst_gid = obj->yst_gid; ++ oh->yst_atime = obj->yst_atime; ++ oh->yst_mtime = obj->yst_mtime; ++ oh->yst_ctime = obj->yst_ctime; ++ oh->yst_rdev = obj->yst_rdev; ++ ++} ++ ++void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c) ++{ ++ obj->yst_mtime = Y_CURRENT_TIME; ++ if (do_a) ++ obj->yst_atime = obj->yst_mtime; ++ if (do_c) ++ obj->yst_ctime = obj->yst_mtime; ++} ++ ++void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev) ++{ ++ yaffs_load_current_time(obj, 1, 1); ++ obj->yst_rdev = rdev; ++ obj->yst_uid = uid; ++ obj->yst_gid = gid; ++} ++ ++static loff_t yaffs_get_file_size(struct yaffs_obj *obj) ++{ ++ YCHAR *alias = NULL; ++ obj = yaffs_get_equivalent_obj(obj); ++ ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ return obj->variant.file_variant.file_size; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ alias = obj->variant.symlink_variant.alias; ++ if (!alias) ++ return 0; ++ return strnlen(alias, YAFFS_MAX_ALIAS_LENGTH); ++ default: ++ return 0; ++ } ++} ++ ++int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr) ++{ ++ unsigned int valid = attr->ia_valid; ++ ++ if (valid & ATTR_MODE) ++ obj->yst_mode = attr->ia_mode; ++ if (valid & ATTR_UID) ++ obj->yst_uid = ia_uid_read(attr); ++ if (valid & ATTR_GID) ++ obj->yst_gid = ia_gid_read(attr); ++ ++ if (valid & ATTR_ATIME) ++ obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime); ++ if (valid & ATTR_CTIME) ++ obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime); ++ if (valid & ATTR_MTIME) ++ obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); ++ ++ if (valid & ATTR_SIZE) ++ yaffs_resize_file(obj, attr->ia_size); ++ ++ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); ++ ++ return YAFFS_OK; ++ ++} ++ ++int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr) ++{ ++ unsigned int valid = 0; ++ ++ attr->ia_mode = obj->yst_mode; ++ valid |= ATTR_MODE; ++ ia_uid_write(attr, obj->yst_uid); ++ valid |= ATTR_UID; ++ ia_gid_write(attr, obj->yst_gid); ++ valid |= ATTR_GID; ++ ++ Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime; ++ valid |= ATTR_ATIME; ++ Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime; ++ valid |= ATTR_CTIME; ++ Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; ++ valid |= ATTR_MTIME; ++ ++ attr->ia_size = yaffs_get_file_size(obj); ++ valid |= ATTR_SIZE; ++ ++ attr->ia_valid = valid; ++ ++ return YAFFS_OK; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.h linux-3.15-rc5/fs/yaffs2/yaffs_attribs.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_attribs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_attribs.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,28 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_ATTRIBS_H__ ++#define __YAFFS_ATTRIBS_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh); ++void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj); ++void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev); ++void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c); ++int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr); ++int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.c linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,97 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_bitmap.h" ++#include "yaffs_trace.h" ++/* ++ * Chunk bitmap manipulations ++ */ ++ ++static inline u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk) ++{ ++ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "BlockBits block %d is not valid", ++ blk); ++ BUG(); ++ } ++ return dev->chunk_bits + ++ (dev->chunk_bit_stride * (blk - dev->internal_start_block)); ++} ++ ++void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk) ++{ ++ if (blk < dev->internal_start_block || blk > dev->internal_end_block || ++ chunk < 0 || chunk >= dev->param.chunks_per_block) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "Chunk Id (%d:%d) invalid", ++ blk, chunk); ++ BUG(); ++ } ++} ++ ++void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk) ++{ ++ u8 *blk_bits = yaffs_block_bits(dev, blk); ++ ++ memset(blk_bits, 0, dev->chunk_bit_stride); ++} ++ ++void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) ++{ ++ u8 *blk_bits = yaffs_block_bits(dev, blk); ++ ++ yaffs_verify_chunk_bit_id(dev, blk, chunk); ++ blk_bits[chunk / 8] &= ~(1 << (chunk & 7)); ++} ++ ++void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) ++{ ++ u8 *blk_bits = yaffs_block_bits(dev, blk); ++ ++ yaffs_verify_chunk_bit_id(dev, blk, chunk); ++ blk_bits[chunk / 8] |= (1 << (chunk & 7)); ++} ++ ++int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) ++{ ++ u8 *blk_bits = yaffs_block_bits(dev, blk); ++ ++ yaffs_verify_chunk_bit_id(dev, blk, chunk); ++ return (blk_bits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; ++} ++ ++int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk) ++{ ++ u8 *blk_bits = yaffs_block_bits(dev, blk); ++ int i; ++ ++ for (i = 0; i < dev->chunk_bit_stride; i++) { ++ if (*blk_bits) ++ return 1; ++ blk_bits++; ++ } ++ return 0; ++} ++ ++int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk) ++{ ++ u8 *blk_bits = yaffs_block_bits(dev, blk); ++ int i; ++ int n = 0; ++ ++ for (i = 0; i < dev->chunk_bit_stride; i++, blk_bits++) ++ n += hweight8(*blk_bits); ++ ++ return n; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.h linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_bitmap.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_bitmap.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,33 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++/* ++ * Chunk bitmap manipulations ++ */ ++ ++#ifndef __YAFFS_BITMAP_H__ ++#define __YAFFS_BITMAP_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk); ++void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk); ++void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); ++void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); ++int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); ++int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk); ++int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.c linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,474 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_checkptrw.h" ++#include "yaffs_getblockinfo.h" ++ ++struct yaffs_checkpt_chunk_hdr { ++ int version; ++ int seq; ++ u32 sum; ++ u32 xor; ++} ; ++ ++ ++static int apply_chunk_offset(struct yaffs_dev *dev, int chunk) ++{ ++ return chunk - dev->chunk_offset; ++} ++ ++static int apply_block_offset(struct yaffs_dev *dev, int block) ++{ ++ return block - dev->block_offset; ++} ++ ++static void yaffs2_checkpt_init_chunk_hdr(struct yaffs_dev *dev) ++{ ++ struct yaffs_checkpt_chunk_hdr hdr; ++ ++ hdr.version = YAFFS_CHECKPOINT_VERSION; ++ hdr.seq = dev->checkpt_page_seq; ++ hdr.sum = dev->checkpt_sum; ++ hdr.xor = dev->checkpt_xor; ++ ++ dev->checkpt_byte_offs = sizeof(hdr); ++ ++ memcpy(dev->checkpt_buffer, &hdr, sizeof(hdr)); ++} ++ ++static int yaffs2_checkpt_check_chunk_hdr(struct yaffs_dev *dev) ++{ ++ struct yaffs_checkpt_chunk_hdr hdr; ++ ++ memcpy(&hdr, dev->checkpt_buffer, sizeof(hdr)); ++ ++ dev->checkpt_byte_offs = sizeof(hdr); ++ ++ return hdr.version == YAFFS_CHECKPOINT_VERSION && ++ hdr.seq == dev->checkpt_page_seq && ++ hdr.sum == dev->checkpt_sum && ++ hdr.xor == dev->checkpt_xor; ++} ++ ++static int yaffs2_checkpt_space_ok(struct yaffs_dev *dev) ++{ ++ int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks; ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "checkpt blocks_avail = %d", blocks_avail); ++ ++ return (blocks_avail <= 0) ? 0 : 1; ++} ++ ++static int yaffs_checkpt_erase(struct yaffs_dev *dev) ++{ ++ int i; ++ ++ if (!dev->drv.drv_erase_fn) ++ return 0; ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "checking blocks %d to %d", ++ dev->internal_start_block, dev->internal_end_block); ++ ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, i); ++ int offset_i = apply_block_offset(dev, i); ++ int result; ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "erasing checkpt block %d", i); ++ ++ dev->n_erasures++; ++ ++ result = dev->drv.drv_erase_fn(dev, offset_i); ++ if(result) { ++ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; ++ dev->n_erased_blocks++; ++ dev->n_free_chunks += ++ dev->param.chunks_per_block; ++ } else { ++ dev->drv.drv_mark_bad_fn(dev, offset_i); ++ bi->block_state = YAFFS_BLOCK_STATE_DEAD; ++ } ++ } ++ } ++ ++ dev->blocks_in_checkpt = 0; ++ ++ return 1; ++} ++ ++static void yaffs2_checkpt_find_erased_block(struct yaffs_dev *dev) ++{ ++ int i; ++ int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks; ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "allocating checkpt block: erased %d reserved %d avail %d next %d ", ++ dev->n_erased_blocks, dev->param.n_reserved_blocks, ++ blocks_avail, dev->checkpt_next_block); ++ ++ if (dev->checkpt_next_block >= 0 && ++ dev->checkpt_next_block <= dev->internal_end_block && ++ blocks_avail > 0) { ++ ++ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; ++ i++) { ++ struct yaffs_block_info *bi; ++ ++ bi = yaffs_get_block_info(dev, i); ++ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { ++ dev->checkpt_next_block = i + 1; ++ dev->checkpt_cur_block = i; ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "allocating checkpt block %d", i); ++ return; ++ } ++ } ++ } ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, "out of checkpt blocks"); ++ ++ dev->checkpt_next_block = -1; ++ dev->checkpt_cur_block = -1; ++} ++ ++static void yaffs2_checkpt_find_block(struct yaffs_dev *dev) ++{ ++ int i; ++ struct yaffs_ext_tags tags; ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "find next checkpt block: start: blocks %d next %d", ++ dev->blocks_in_checkpt, dev->checkpt_next_block); ++ ++ if (dev->blocks_in_checkpt < dev->checkpt_max_blocks) ++ for (i = dev->checkpt_next_block; i <= dev->internal_end_block; ++ i++) { ++ int chunk = i * dev->param.chunks_per_block; ++ enum yaffs_block_state state; ++ u32 seq; ++ ++ dev->tagger.read_chunk_tags_fn(dev, ++ apply_chunk_offset(dev, chunk), ++ NULL, &tags); ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "find next checkpt block: search: block %d state %d oid %d seq %d eccr %d", ++ i, (int) state, ++ tags.obj_id, tags.seq_number, ++ tags.ecc_result); ++ ++ if (tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ continue; ++ ++ dev->tagger.query_block_fn(dev, ++ apply_block_offset(dev, i), ++ &state, &seq); ++ if (state == YAFFS_BLOCK_STATE_DEAD) ++ continue; ++ ++ /* Right kind of block */ ++ dev->checkpt_next_block = tags.obj_id; ++ dev->checkpt_cur_block = i; ++ dev->checkpt_block_list[dev->blocks_in_checkpt] = i; ++ dev->blocks_in_checkpt++; ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "found checkpt block %d", i); ++ return; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, "found no more checkpt blocks"); ++ ++ dev->checkpt_next_block = -1; ++ dev->checkpt_cur_block = -1; ++} ++ ++int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing) ++{ ++ int i; ++ ++ dev->checkpt_open_write = writing; ++ ++ /* Got the functions we need? */ ++ if (!dev->tagger.write_chunk_tags_fn || ++ !dev->tagger.read_chunk_tags_fn || ++ !dev->drv.drv_erase_fn || ++ !dev->drv.drv_mark_bad_fn) ++ return 0; ++ ++ if (writing && !yaffs2_checkpt_space_ok(dev)) ++ return 0; ++ ++ if (!dev->checkpt_buffer) ++ dev->checkpt_buffer = ++ kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); ++ if (!dev->checkpt_buffer) ++ return 0; ++ ++ dev->checkpt_page_seq = 0; ++ dev->checkpt_byte_count = 0; ++ dev->checkpt_sum = 0; ++ dev->checkpt_xor = 0; ++ dev->checkpt_cur_block = -1; ++ dev->checkpt_cur_chunk = -1; ++ dev->checkpt_next_block = dev->internal_start_block; ++ ++ if (writing) { ++ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); ++ yaffs2_checkpt_init_chunk_hdr(dev); ++ return yaffs_checkpt_erase(dev); ++ } ++ ++ /* Opening for a read */ ++ /* Set to a value that will kick off a read */ ++ dev->checkpt_byte_offs = dev->data_bytes_per_chunk; ++ /* A checkpoint block list of 1 checkpoint block per 16 block is ++ * (hopefully) going to be way more than we need */ ++ dev->blocks_in_checkpt = 0; ++ dev->checkpt_max_blocks = ++ (dev->internal_end_block - dev->internal_start_block) / 16 + 2; ++ dev->checkpt_block_list = ++ kmalloc(sizeof(int) * dev->checkpt_max_blocks, GFP_NOFS); ++ ++ if (!dev->checkpt_block_list) ++ return 0; ++ ++ for (i = 0; i < dev->checkpt_max_blocks; i++) ++ dev->checkpt_block_list[i] = -1; ++ ++ return 1; ++} ++ ++int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum) ++{ ++ u32 composite_sum; ++ ++ composite_sum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xff); ++ *sum = composite_sum; ++ return 1; ++} ++ ++static int yaffs2_checkpt_flush_buffer(struct yaffs_dev *dev) ++{ ++ int chunk; ++ int offset_chunk; ++ struct yaffs_ext_tags tags; ++ ++ if (dev->checkpt_cur_block < 0) { ++ yaffs2_checkpt_find_erased_block(dev); ++ dev->checkpt_cur_chunk = 0; ++ } ++ ++ if (dev->checkpt_cur_block < 0) ++ return 0; ++ ++ tags.is_deleted = 0; ++ tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */ ++ tags.chunk_id = dev->checkpt_page_seq + 1; ++ tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA; ++ tags.n_bytes = dev->data_bytes_per_chunk; ++ if (dev->checkpt_cur_chunk == 0) { ++ /* First chunk we write for the block? Set block state to ++ checkpoint */ ++ struct yaffs_block_info *bi = ++ yaffs_get_block_info(dev, dev->checkpt_cur_block); ++ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ dev->blocks_in_checkpt++; ++ } ++ ++ chunk = ++ dev->checkpt_cur_block * dev->param.chunks_per_block + ++ dev->checkpt_cur_chunk; ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "checkpoint wite buffer nand %d(%d:%d) objid %d chId %d", ++ chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, ++ tags.obj_id, tags.chunk_id); ++ ++ offset_chunk = apply_chunk_offset(dev, chunk); ++ ++ dev->n_page_writes++; ++ ++ dev->tagger.write_chunk_tags_fn(dev, offset_chunk, ++ dev->checkpt_buffer, &tags); ++ dev->checkpt_page_seq++; ++ dev->checkpt_cur_chunk++; ++ if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) { ++ dev->checkpt_cur_chunk = 0; ++ dev->checkpt_cur_block = -1; ++ } ++ memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); ++ ++ yaffs2_checkpt_init_chunk_hdr(dev); ++ ++ ++ return 1; ++} ++ ++int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes) ++{ ++ int i = 0; ++ int ok = 1; ++ u8 *data_bytes = (u8 *) data; ++ ++ if (!dev->checkpt_buffer) ++ return 0; ++ ++ if (!dev->checkpt_open_write) ++ return -1; ++ ++ while (i < n_bytes && ok) { ++ dev->checkpt_buffer[dev->checkpt_byte_offs] = *data_bytes; ++ dev->checkpt_sum += *data_bytes; ++ dev->checkpt_xor ^= *data_bytes; ++ ++ dev->checkpt_byte_offs++; ++ i++; ++ data_bytes++; ++ dev->checkpt_byte_count++; ++ ++ if (dev->checkpt_byte_offs < 0 || ++ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) ++ ok = yaffs2_checkpt_flush_buffer(dev); ++ } ++ ++ return i; ++} ++ ++int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes) ++{ ++ int i = 0; ++ int ok = 1; ++ struct yaffs_ext_tags tags; ++ int chunk; ++ int offset_chunk; ++ u8 *data_bytes = (u8 *) data; ++ ++ if (!dev->checkpt_buffer) ++ return 0; ++ ++ if (dev->checkpt_open_write) ++ return -1; ++ ++ while (i < n_bytes && ok) { ++ ++ if (dev->checkpt_byte_offs < 0 || ++ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) { ++ ++ if (dev->checkpt_cur_block < 0) { ++ yaffs2_checkpt_find_block(dev); ++ dev->checkpt_cur_chunk = 0; ++ } ++ ++ if (dev->checkpt_cur_block < 0) { ++ ok = 0; ++ break; ++ } ++ ++ chunk = dev->checkpt_cur_block * ++ dev->param.chunks_per_block + ++ dev->checkpt_cur_chunk; ++ ++ offset_chunk = apply_chunk_offset(dev, chunk); ++ dev->n_page_reads++; ++ ++ /* read in the next chunk */ ++ dev->tagger.read_chunk_tags_fn(dev, ++ offset_chunk, ++ dev->checkpt_buffer, ++ &tags); ++ ++ if (tags.chunk_id != (dev->checkpt_page_seq + 1) || ++ tags.ecc_result > YAFFS_ECC_RESULT_FIXED || ++ tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) { ++ ok = 0; ++ break; ++ } ++ if(!yaffs2_checkpt_check_chunk_hdr(dev)) { ++ ok = 0; ++ break; ++ } ++ ++ dev->checkpt_page_seq++; ++ dev->checkpt_cur_chunk++; ++ ++ if (dev->checkpt_cur_chunk >= ++ dev->param.chunks_per_block) ++ dev->checkpt_cur_block = -1; ++ ++ } ++ ++ *data_bytes = dev->checkpt_buffer[dev->checkpt_byte_offs]; ++ dev->checkpt_sum += *data_bytes; ++ dev->checkpt_xor ^= *data_bytes; ++ dev->checkpt_byte_offs++; ++ i++; ++ data_bytes++; ++ dev->checkpt_byte_count++; ++ } ++ ++ return i; ++} ++ ++int yaffs_checkpt_close(struct yaffs_dev *dev) ++{ ++ int i; ++ ++ if (dev->checkpt_open_write) { ++ if (dev->checkpt_byte_offs != ++ sizeof(sizeof(struct yaffs_checkpt_chunk_hdr))) ++ yaffs2_checkpt_flush_buffer(dev); ++ } else if (dev->checkpt_block_list) { ++ for (i = 0; ++ i < dev->blocks_in_checkpt && ++ dev->checkpt_block_list[i] >= 0; i++) { ++ int blk = dev->checkpt_block_list[i]; ++ struct yaffs_block_info *bi = NULL; ++ ++ if (dev->internal_start_block <= blk && ++ blk <= dev->internal_end_block) ++ bi = yaffs_get_block_info(dev, blk); ++ if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY) ++ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ } ++ kfree(dev->checkpt_block_list); ++ dev->checkpt_block_list = NULL; ++ } ++ ++ dev->n_free_chunks -= ++ dev->blocks_in_checkpt * dev->param.chunks_per_block; ++ dev->n_erased_blocks -= dev->blocks_in_checkpt; ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, "checkpoint byte count %d", ++ dev->checkpt_byte_count); ++ ++ if (dev->checkpt_buffer) { ++ /* free the buffer */ ++ kfree(dev->checkpt_buffer); ++ dev->checkpt_buffer = NULL; ++ return 1; ++ } else { ++ return 0; ++ } ++} ++ ++int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev) ++{ ++ /* Erase the checkpoint data */ ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "checkpoint invalidate of %d blocks", ++ dev->blocks_in_checkpt); ++ ++ return yaffs_checkpt_erase(dev); ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.h linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_checkptrw.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_checkptrw.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,33 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_CHECKPTRW_H__ ++#define __YAFFS_CHECKPTRW_H__ ++ ++#include "yaffs_guts.h" ++ ++int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing); ++ ++int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes); ++ ++int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes); ++ ++int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum); ++ ++int yaffs_checkpt_close(struct yaffs_dev *dev); ++ ++int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.c linux-3.15-rc5/fs/yaffs2/yaffs_ecc.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_ecc.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,281 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * This code implements the ECC algorithm used in SmartMedia. ++ * ++ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. ++ * The two unused bit are set to 1. ++ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two ++ * such ECC blocks are used on a 512-byte NAND page. ++ * ++ */ ++ ++#include "yportenv.h" ++ ++#include "yaffs_ecc.h" ++ ++/* Table generated by gen-ecc.c ++ * Using a table means we do not have to calculate p1..p4 and p1'..p4' ++ * for each byte of data. These are instead provided in a table in bits7..2. ++ * Bit 0 of each entry indicates whether the entry has an odd or even parity, ++ * and therefore this bytes influence on the line parity. ++ */ ++ ++static const unsigned char column_parity_table[] = { ++ 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, ++ 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, ++ 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, ++ 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, ++ 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, ++ 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, ++ 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, ++ 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, ++ 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, ++ 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, ++ 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, ++ 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, ++ 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, ++ 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, ++ 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, ++ 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, ++ 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, ++ 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, ++ 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, ++ 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, ++ 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, ++ 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, ++ 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, ++ 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, ++ 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, ++ 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, ++ 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, ++ 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, ++ 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, ++ 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, ++ 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, ++ 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, ++}; ++ ++ ++/* Calculate the ECC for a 256-byte block of data */ ++void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc) ++{ ++ unsigned int i; ++ unsigned char col_parity = 0; ++ unsigned char line_parity = 0; ++ unsigned char line_parity_prime = 0; ++ unsigned char t; ++ unsigned char b; ++ ++ for (i = 0; i < 256; i++) { ++ b = column_parity_table[*data++]; ++ col_parity ^= b; ++ ++ if (b & 0x01) { /* odd number of bits in the byte */ ++ line_parity ^= i; ++ line_parity_prime ^= ~i; ++ } ++ } ++ ++ ecc[2] = (~col_parity) | 0x03; ++ ++ t = 0; ++ if (line_parity & 0x80) ++ t |= 0x80; ++ if (line_parity_prime & 0x80) ++ t |= 0x40; ++ if (line_parity & 0x40) ++ t |= 0x20; ++ if (line_parity_prime & 0x40) ++ t |= 0x10; ++ if (line_parity & 0x20) ++ t |= 0x08; ++ if (line_parity_prime & 0x20) ++ t |= 0x04; ++ if (line_parity & 0x10) ++ t |= 0x02; ++ if (line_parity_prime & 0x10) ++ t |= 0x01; ++ ecc[1] = ~t; ++ ++ t = 0; ++ if (line_parity & 0x08) ++ t |= 0x80; ++ if (line_parity_prime & 0x08) ++ t |= 0x40; ++ if (line_parity & 0x04) ++ t |= 0x20; ++ if (line_parity_prime & 0x04) ++ t |= 0x10; ++ if (line_parity & 0x02) ++ t |= 0x08; ++ if (line_parity_prime & 0x02) ++ t |= 0x04; ++ if (line_parity & 0x01) ++ t |= 0x02; ++ if (line_parity_prime & 0x01) ++ t |= 0x01; ++ ecc[0] = ~t; ++ ++} ++ ++/* Correct the ECC on a 256 byte block of data */ ++ ++int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, ++ const unsigned char *test_ecc) ++{ ++ unsigned char d0, d1, d2; /* deltas */ ++ ++ d0 = read_ecc[0] ^ test_ecc[0]; ++ d1 = read_ecc[1] ^ test_ecc[1]; ++ d2 = read_ecc[2] ^ test_ecc[2]; ++ ++ if ((d0 | d1 | d2) == 0) ++ return 0; /* no error */ ++ ++ if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 && ++ ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 && ++ ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) { ++ /* Single bit (recoverable) error in data */ ++ ++ unsigned byte; ++ unsigned bit; ++ ++ bit = byte = 0; ++ ++ if (d1 & 0x80) ++ byte |= 0x80; ++ if (d1 & 0x20) ++ byte |= 0x40; ++ if (d1 & 0x08) ++ byte |= 0x20; ++ if (d1 & 0x02) ++ byte |= 0x10; ++ if (d0 & 0x80) ++ byte |= 0x08; ++ if (d0 & 0x20) ++ byte |= 0x04; ++ if (d0 & 0x08) ++ byte |= 0x02; ++ if (d0 & 0x02) ++ byte |= 0x01; ++ ++ if (d2 & 0x80) ++ bit |= 0x04; ++ if (d2 & 0x20) ++ bit |= 0x02; ++ if (d2 & 0x08) ++ bit |= 0x01; ++ ++ data[byte] ^= (1 << bit); ++ ++ return 1; /* Corrected the error */ ++ } ++ ++ if ((hweight8(d0) + hweight8(d1) + hweight8(d2)) == 1) { ++ /* Reccoverable error in ecc */ ++ ++ read_ecc[0] = test_ecc[0]; ++ read_ecc[1] = test_ecc[1]; ++ read_ecc[2] = test_ecc[2]; ++ ++ return 1; /* Corrected the error */ ++ } ++ ++ /* Unrecoverable error */ ++ ++ return -1; ++ ++} ++ ++/* ++ * ECCxxxOther does ECC calcs on arbitrary n bytes of data ++ */ ++void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, ++ struct yaffs_ecc_other *ecc_other) ++{ ++ unsigned int i; ++ unsigned char col_parity = 0; ++ unsigned line_parity = 0; ++ unsigned line_parity_prime = 0; ++ unsigned char b; ++ ++ for (i = 0; i < n_bytes; i++) { ++ b = column_parity_table[*data++]; ++ col_parity ^= b; ++ ++ if (b & 0x01) { ++ /* odd number of bits in the byte */ ++ line_parity ^= i; ++ line_parity_prime ^= ~i; ++ } ++ ++ } ++ ++ ecc_other->col_parity = (col_parity >> 2) & 0x3f; ++ ecc_other->line_parity = line_parity; ++ ecc_other->line_parity_prime = line_parity_prime; ++} ++ ++int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, ++ struct yaffs_ecc_other *read_ecc, ++ const struct yaffs_ecc_other *test_ecc) ++{ ++ unsigned char delta_col; /* column parity delta */ ++ unsigned delta_line; /* line parity delta */ ++ unsigned delta_line_prime; /* line parity delta */ ++ unsigned bit; ++ ++ delta_col = read_ecc->col_parity ^ test_ecc->col_parity; ++ delta_line = read_ecc->line_parity ^ test_ecc->line_parity; ++ delta_line_prime = ++ read_ecc->line_parity_prime ^ test_ecc->line_parity_prime; ++ ++ if ((delta_col | delta_line | delta_line_prime) == 0) ++ return 0; /* no error */ ++ ++ if (delta_line == ~delta_line_prime && ++ (((delta_col ^ (delta_col >> 1)) & 0x15) == 0x15)) { ++ /* Single bit (recoverable) error in data */ ++ ++ bit = 0; ++ ++ if (delta_col & 0x20) ++ bit |= 0x04; ++ if (delta_col & 0x08) ++ bit |= 0x02; ++ if (delta_col & 0x02) ++ bit |= 0x01; ++ ++ if (delta_line >= n_bytes) ++ return -1; ++ ++ data[delta_line] ^= (1 << bit); ++ ++ return 1; /* corrected */ ++ } ++ ++ if ((hweight32(delta_line) + ++ hweight32(delta_line_prime) + ++ hweight8(delta_col)) == 1) { ++ /* Reccoverable error in ecc */ ++ ++ *read_ecc = *test_ecc; ++ return 1; /* corrected */ ++ } ++ ++ /* Unrecoverable error */ ++ ++ return -1; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.h linux-3.15-rc5/fs/yaffs2/yaffs_ecc.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_ecc.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_ecc.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,44 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++/* ++ * This code implements the ECC algorithm used in SmartMedia. ++ * ++ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. ++ * The two unused bit are set to 1. ++ * The ECC can correct single bit errors in a 256-byte page of data. ++ * Thus, two such ECC blocks are used on a 512-byte NAND page. ++ * ++ */ ++ ++#ifndef __YAFFS_ECC_H__ ++#define __YAFFS_ECC_H__ ++ ++struct yaffs_ecc_other { ++ unsigned char col_parity; ++ unsigned line_parity; ++ unsigned line_parity_prime; ++}; ++ ++void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc); ++int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc, ++ const unsigned char *test_ecc); ++ ++void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes, ++ struct yaffs_ecc_other *ecc); ++int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes, ++ struct yaffs_ecc_other *read_ecc, ++ const struct yaffs_ecc_other *test_ecc); ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_getblockinfo.h linux-3.15-rc5/fs/yaffs2/yaffs_getblockinfo.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_getblockinfo.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_getblockinfo.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,35 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_GETBLOCKINFO_H__ ++#define __YAFFS_GETBLOCKINFO_H__ ++ ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++ ++/* Function to manipulate block info */ ++static inline struct yaffs_block_info *yaffs_get_block_info(struct yaffs_dev ++ *dev, int blk) ++{ ++ if (blk < dev->internal_start_block || blk > dev->internal_end_block) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>> yaffs: get_block_info block %d is not valid", ++ blk); ++ BUG(); ++ } ++ return &dev->block_info[blk - dev->internal_start_block]; ++} ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.c linux-3.15-rc5/fs/yaffs2/yaffs_guts.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_guts.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,5146 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yportenv.h" ++#include "yaffs_trace.h" ++ ++#include "yaffs_guts.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_tagscompat.h" ++#include "yaffs_tagsmarshall.h" ++#include "yaffs_nand.h" ++#include "yaffs_yaffs1.h" ++#include "yaffs_yaffs2.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_verify.h" ++#include "yaffs_nand.h" ++#include "yaffs_packedtags2.h" ++#include "yaffs_nameval.h" ++#include "yaffs_allocator.h" ++#include "yaffs_attribs.h" ++#include "yaffs_summary.h" ++ ++/* Note YAFFS_GC_GOOD_ENOUGH must be <= YAFFS_GC_PASSIVE_THRESHOLD */ ++#define YAFFS_GC_GOOD_ENOUGH 2 ++#define YAFFS_GC_PASSIVE_THRESHOLD 4 ++ ++#include "yaffs_ecc.h" ++ ++/* Forward declarations */ ++ ++static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk, ++ const u8 *buffer, int n_bytes, int use_reserve); ++ ++static void yaffs_fix_null_name(struct yaffs_obj *obj, YCHAR *name, ++ int buffer_size); ++ ++/* Function to calculate chunk and offset */ ++ ++void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr, ++ int *chunk_out, u32 *offset_out) ++{ ++ int chunk; ++ u32 offset; ++ ++ chunk = (u32) (addr >> dev->chunk_shift); ++ ++ if (dev->chunk_div == 1) { ++ /* easy power of 2 case */ ++ offset = (u32) (addr & dev->chunk_mask); ++ } else { ++ /* Non power-of-2 case */ ++ ++ loff_t chunk_base; ++ ++ chunk /= dev->chunk_div; ++ ++ chunk_base = ((loff_t) chunk) * dev->data_bytes_per_chunk; ++ offset = (u32) (addr - chunk_base); ++ } ++ ++ *chunk_out = chunk; ++ *offset_out = offset; ++} ++ ++/* Function to return the number of shifts for a power of 2 greater than or ++ * equal to the given number ++ * Note we don't try to cater for all possible numbers and this does not have to ++ * be hellishly efficient. ++ */ ++ ++static inline u32 calc_shifts_ceiling(u32 x) ++{ ++ int extra_bits; ++ int shifts; ++ ++ shifts = extra_bits = 0; ++ ++ while (x > 1) { ++ if (x & 1) ++ extra_bits++; ++ x >>= 1; ++ shifts++; ++ } ++ ++ if (extra_bits) ++ shifts++; ++ ++ return shifts; ++} ++ ++/* Function to return the number of shifts to get a 1 in bit 0 ++ */ ++ ++static inline u32 calc_shifts(u32 x) ++{ ++ u32 shifts; ++ ++ shifts = 0; ++ ++ if (!x) ++ return 0; ++ ++ while (!(x & 1)) { ++ x >>= 1; ++ shifts++; ++ } ++ ++ return shifts; ++} ++ ++/* ++ * Temporary buffer manipulations. ++ */ ++ ++static int yaffs_init_tmp_buffers(struct yaffs_dev *dev) ++{ ++ int i; ++ u8 *buf = (u8 *) 1; ++ ++ memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer)); ++ ++ for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { ++ dev->temp_buffer[i].in_use = 0; ++ buf = kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); ++ dev->temp_buffer[i].buffer = buf; ++ } ++ ++ return buf ? YAFFS_OK : YAFFS_FAIL; ++} ++ ++u8 *yaffs_get_temp_buffer(struct yaffs_dev * dev) ++{ ++ int i; ++ ++ dev->temp_in_use++; ++ if (dev->temp_in_use > dev->max_temp) ++ dev->max_temp = dev->temp_in_use; ++ ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { ++ if (dev->temp_buffer[i].in_use == 0) { ++ dev->temp_buffer[i].in_use = 1; ++ return dev->temp_buffer[i].buffer; ++ } ++ } ++ ++ yaffs_trace(YAFFS_TRACE_BUFFERS, "Out of temp buffers"); ++ /* ++ * If we got here then we have to allocate an unmanaged one ++ * This is not good. ++ */ ++ ++ dev->unmanaged_buffer_allocs++; ++ return kmalloc(dev->data_bytes_per_chunk, GFP_NOFS); ++ ++} ++ ++void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer) ++{ ++ int i; ++ ++ dev->temp_in_use--; ++ ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { ++ if (dev->temp_buffer[i].buffer == buffer) { ++ dev->temp_buffer[i].in_use = 0; ++ return; ++ } ++ } ++ ++ if (buffer) { ++ /* assume it is an unmanaged one. */ ++ yaffs_trace(YAFFS_TRACE_BUFFERS, ++ "Releasing unmanaged temp buffer"); ++ kfree(buffer); ++ dev->unmanaged_buffer_deallocs++; ++ } ++ ++} ++ ++/* ++ * Functions for robustisizing TODO ++ * ++ */ ++ ++static void yaffs_handle_chunk_wr_ok(struct yaffs_dev *dev, int nand_chunk, ++ const u8 *data, ++ const struct yaffs_ext_tags *tags) ++{ ++ (void) dev; ++ (void) nand_chunk; ++ (void) data; ++ (void) tags; ++} ++ ++static void yaffs_handle_chunk_update(struct yaffs_dev *dev, int nand_chunk, ++ const struct yaffs_ext_tags *tags) ++{ ++ (void) dev; ++ (void) nand_chunk; ++ (void) tags; ++} ++ ++void yaffs_handle_chunk_error(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi) ++{ ++ if (!bi->gc_prioritise) { ++ bi->gc_prioritise = 1; ++ dev->has_pending_prioritised_gc = 1; ++ bi->chunk_error_strikes++; ++ ++ if (bi->chunk_error_strikes > 3) { ++ bi->needs_retiring = 1; /* Too many stikes, so retire */ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: Block struck out"); ++ ++ } ++ } ++} ++ ++static void yaffs_handle_chunk_wr_error(struct yaffs_dev *dev, int nand_chunk, ++ int erased_ok) ++{ ++ int flash_block = nand_chunk / dev->param.chunks_per_block; ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); ++ ++ yaffs_handle_chunk_error(dev, bi); ++ ++ if (erased_ok) { ++ /* Was an actual write failure, ++ * so mark the block for retirement.*/ ++ bi->needs_retiring = 1; ++ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ "**>> Block %d needs retiring", flash_block); ++ } ++ ++ /* Delete the chunk */ ++ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); ++ yaffs_skip_rest_of_block(dev); ++} ++ ++/* ++ * Verification code ++ */ ++ ++/* ++ * Simple hash function. Needs to have a reasonable spread ++ */ ++ ++static inline int yaffs_hash_fn(int n) ++{ ++ if (n < 0) ++ n = -n; ++ return n % YAFFS_NOBJECT_BUCKETS; ++} ++ ++/* ++ * Access functions to useful fake objects. ++ * Note that root might have a presence in NAND if permissions are set. ++ */ ++ ++struct yaffs_obj *yaffs_root(struct yaffs_dev *dev) ++{ ++ return dev->root_dir; ++} ++ ++struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev) ++{ ++ return dev->lost_n_found; ++} ++ ++/* ++ * Erased NAND checking functions ++ */ ++ ++int yaffs_check_ff(u8 *buffer, int n_bytes) ++{ ++ /* Horrible, slow implementation */ ++ while (n_bytes--) { ++ if (*buffer != 0xff) ++ return 0; ++ buffer++; ++ } ++ return 1; ++} ++ ++static int yaffs_check_chunk_erased(struct yaffs_dev *dev, int nand_chunk) ++{ ++ int retval = YAFFS_OK; ++ u8 *data = yaffs_get_temp_buffer(dev); ++ struct yaffs_ext_tags tags; ++ int result; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags); ++ ++ if (tags.ecc_result > YAFFS_ECC_RESULT_NO_ERROR) ++ retval = YAFFS_FAIL; ++ ++ if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || ++ tags.chunk_used) { ++ yaffs_trace(YAFFS_TRACE_NANDACCESS, ++ "Chunk %d not erased", nand_chunk); ++ retval = YAFFS_FAIL; ++ } ++ ++ yaffs_release_temp_buffer(dev, data); ++ ++ return retval; ++ ++} ++ ++static int yaffs_verify_chunk_written(struct yaffs_dev *dev, ++ int nand_chunk, ++ const u8 *data, ++ struct yaffs_ext_tags *tags) ++{ ++ int retval = YAFFS_OK; ++ struct yaffs_ext_tags temp_tags; ++ u8 *buffer = yaffs_get_temp_buffer(dev); ++ int result; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, buffer, &temp_tags); ++ if (memcmp(buffer, data, dev->data_bytes_per_chunk) || ++ temp_tags.obj_id != tags->obj_id || ++ temp_tags.chunk_id != tags->chunk_id || ++ temp_tags.n_bytes != tags->n_bytes) ++ retval = YAFFS_FAIL; ++ ++ yaffs_release_temp_buffer(dev, buffer); ++ ++ return retval; ++} ++ ++ ++int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks) ++{ ++ int reserved_chunks; ++ int reserved_blocks = dev->param.n_reserved_blocks; ++ int checkpt_blocks; ++ ++ checkpt_blocks = yaffs_calc_checkpt_blocks_required(dev); ++ ++ reserved_chunks = ++ (reserved_blocks + checkpt_blocks) * dev->param.chunks_per_block; ++ ++ return (dev->n_free_chunks > (reserved_chunks + n_chunks)); ++} ++ ++static int yaffs_find_alloc_block(struct yaffs_dev *dev) ++{ ++ int i; ++ struct yaffs_block_info *bi; ++ ++ if (dev->n_erased_blocks < 1) { ++ /* Hoosterman we've got a problem. ++ * Can't get space to gc ++ */ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: no more erased blocks"); ++ ++ return -1; ++ } ++ ++ /* Find an empty block. */ ++ ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ dev->alloc_block_finder++; ++ if (dev->alloc_block_finder < dev->internal_start_block ++ || dev->alloc_block_finder > dev->internal_end_block) { ++ dev->alloc_block_finder = dev->internal_start_block; ++ } ++ ++ bi = yaffs_get_block_info(dev, dev->alloc_block_finder); ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { ++ bi->block_state = YAFFS_BLOCK_STATE_ALLOCATING; ++ dev->seq_number++; ++ bi->seq_number = dev->seq_number; ++ dev->n_erased_blocks--; ++ yaffs_trace(YAFFS_TRACE_ALLOCATE, ++ "Allocated block %d, seq %d, %d left" , ++ dev->alloc_block_finder, dev->seq_number, ++ dev->n_erased_blocks); ++ return dev->alloc_block_finder; ++ } ++ } ++ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs tragedy: no more erased blocks, but there should have been %d", ++ dev->n_erased_blocks); ++ ++ return -1; ++} ++ ++static int yaffs_alloc_chunk(struct yaffs_dev *dev, int use_reserver, ++ struct yaffs_block_info **block_ptr) ++{ ++ int ret_val; ++ struct yaffs_block_info *bi; ++ ++ if (dev->alloc_block < 0) { ++ /* Get next block to allocate off */ ++ dev->alloc_block = yaffs_find_alloc_block(dev); ++ dev->alloc_page = 0; ++ } ++ ++ if (!use_reserver && !yaffs_check_alloc_available(dev, 1)) { ++ /* No space unless we're allowed to use the reserve. */ ++ return -1; ++ } ++ ++ if (dev->n_erased_blocks < dev->param.n_reserved_blocks ++ && dev->alloc_page == 0) ++ yaffs_trace(YAFFS_TRACE_ALLOCATE, "Allocating reserve"); ++ ++ /* Next page please.... */ ++ if (dev->alloc_block >= 0) { ++ bi = yaffs_get_block_info(dev, dev->alloc_block); ++ ++ ret_val = (dev->alloc_block * dev->param.chunks_per_block) + ++ dev->alloc_page; ++ bi->pages_in_use++; ++ yaffs_set_chunk_bit(dev, dev->alloc_block, dev->alloc_page); ++ ++ dev->alloc_page++; ++ ++ dev->n_free_chunks--; ++ ++ /* If the block is full set the state to full */ ++ if (dev->alloc_page >= dev->param.chunks_per_block) { ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ dev->alloc_block = -1; ++ } ++ ++ if (block_ptr) ++ *block_ptr = bi; ++ ++ return ret_val; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!"); ++ ++ return -1; ++} ++ ++static int yaffs_get_erased_chunks(struct yaffs_dev *dev) ++{ ++ int n; ++ ++ n = dev->n_erased_blocks * dev->param.chunks_per_block; ++ ++ if (dev->alloc_block > 0) ++ n += (dev->param.chunks_per_block - dev->alloc_page); ++ ++ return n; ++ ++} ++ ++/* ++ * yaffs_skip_rest_of_block() skips over the rest of the allocation block ++ * if we don't want to write to it. ++ */ ++void yaffs_skip_rest_of_block(struct yaffs_dev *dev) ++{ ++ struct yaffs_block_info *bi; ++ ++ if (dev->alloc_block > 0) { ++ bi = yaffs_get_block_info(dev, dev->alloc_block); ++ if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING) { ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ dev->alloc_block = -1; ++ } ++ } ++} ++ ++static int yaffs_write_new_chunk(struct yaffs_dev *dev, ++ const u8 *data, ++ struct yaffs_ext_tags *tags, int use_reserver) ++{ ++ int attempts = 0; ++ int write_ok = 0; ++ int chunk; ++ ++ yaffs2_checkpt_invalidate(dev); ++ ++ do { ++ struct yaffs_block_info *bi = 0; ++ int erased_ok = 0; ++ ++ chunk = yaffs_alloc_chunk(dev, use_reserver, &bi); ++ if (chunk < 0) { ++ /* no space */ ++ break; ++ } ++ ++ /* First check this chunk is erased, if it needs ++ * checking. The checking policy (unless forced ++ * always on) is as follows: ++ * ++ * Check the first page we try to write in a block. ++ * If the check passes then we don't need to check any ++ * more. If the check fails, we check again... ++ * If the block has been erased, we don't need to check. ++ * ++ * However, if the block has been prioritised for gc, ++ * then we think there might be something odd about ++ * this block and stop using it. ++ * ++ * Rationale: We should only ever see chunks that have ++ * not been erased if there was a partially written ++ * chunk due to power loss. This checking policy should ++ * catch that case with very few checks and thus save a ++ * lot of checks that are most likely not needed. ++ * ++ * Mods to the above ++ * If an erase check fails or the write fails we skip the ++ * rest of the block. ++ */ ++ ++ /* let's give it a try */ ++ attempts++; ++ ++ if (dev->param.always_check_erased) ++ bi->skip_erased_check = 0; ++ ++ if (!bi->skip_erased_check) { ++ erased_ok = yaffs_check_chunk_erased(dev, chunk); ++ if (erased_ok != YAFFS_OK) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>> yaffs chunk %d was not erased", ++ chunk); ++ ++ /* If not erased, delete this one, ++ * skip rest of block and ++ * try another chunk */ ++ yaffs_chunk_del(dev, chunk, 1, __LINE__); ++ yaffs_skip_rest_of_block(dev); ++ continue; ++ } ++ } ++ ++ write_ok = yaffs_wr_chunk_tags_nand(dev, chunk, data, tags); ++ ++ if (!bi->skip_erased_check) ++ write_ok = ++ yaffs_verify_chunk_written(dev, chunk, data, tags); ++ ++ if (write_ok != YAFFS_OK) { ++ /* Clean up aborted write, skip to next block and ++ * try another chunk */ ++ yaffs_handle_chunk_wr_error(dev, chunk, erased_ok); ++ continue; ++ } ++ ++ bi->skip_erased_check = 1; ++ ++ /* Copy the data into the robustification buffer */ ++ yaffs_handle_chunk_wr_ok(dev, chunk, data, tags); ++ ++ } while (write_ok != YAFFS_OK && ++ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); ++ ++ if (!write_ok) ++ chunk = -1; ++ ++ if (attempts > 1) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>> yaffs write required %d attempts", ++ attempts); ++ dev->n_retried_writes += (attempts - 1); ++ } ++ ++ return chunk; ++} ++ ++/* ++ * Block retiring for handling a broken block. ++ */ ++ ++static void yaffs_retire_block(struct yaffs_dev *dev, int flash_block) ++{ ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, flash_block); ++ ++ yaffs2_checkpt_invalidate(dev); ++ ++ yaffs2_clear_oldest_dirty_seq(dev, bi); ++ ++ if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) { ++ if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: Failed to mark bad and erase block %d", ++ flash_block); ++ } else { ++ struct yaffs_ext_tags tags; ++ int chunk_id = ++ flash_block * dev->param.chunks_per_block; ++ ++ u8 *buffer = yaffs_get_temp_buffer(dev); ++ ++ memset(buffer, 0xff, dev->data_bytes_per_chunk); ++ memset(&tags, 0, sizeof(tags)); ++ tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK; ++ if (dev->tagger.write_chunk_tags_fn(dev, chunk_id - ++ dev->chunk_offset, ++ buffer, ++ &tags) != YAFFS_OK) ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: Failed to write bad block marker to block %d", ++ flash_block); ++ ++ yaffs_release_temp_buffer(dev, buffer); ++ } ++ } ++ ++ bi->block_state = YAFFS_BLOCK_STATE_DEAD; ++ bi->gc_prioritise = 0; ++ bi->needs_retiring = 0; ++ ++ dev->n_retired_blocks++; ++} ++ ++/*---------------- Name handling functions ------------*/ ++ ++static u16 yaffs_calc_name_sum(const YCHAR *name) ++{ ++ u16 sum = 0; ++ u16 i = 1; ++ ++ if (!name) ++ return 0; ++ ++ while ((*name) && i < (YAFFS_MAX_NAME_LENGTH / 2)) { ++ ++ /* 0x1f mask is case insensitive */ ++ sum += ((*name) & 0x1f) * i; ++ i++; ++ name++; ++ } ++ return sum; ++} ++ ++ ++void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR * name) ++{ ++ memset(obj->short_name, 0, sizeof(obj->short_name)); ++ ++ if (name && !name[0]) { ++ yaffs_fix_null_name(obj, obj->short_name, ++ YAFFS_SHORT_NAME_LENGTH); ++ name = obj->short_name; ++ } else if (name && ++ strnlen(name, YAFFS_SHORT_NAME_LENGTH + 1) <= ++ YAFFS_SHORT_NAME_LENGTH) { ++ strcpy(obj->short_name, name); ++ } ++ ++ obj->sum = yaffs_calc_name_sum(name); ++} ++ ++void yaffs_set_obj_name_from_oh(struct yaffs_obj *obj, ++ const struct yaffs_obj_hdr *oh) ++{ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ YCHAR tmp_name[YAFFS_MAX_NAME_LENGTH + 1]; ++ memset(tmp_name, 0, sizeof(tmp_name)); ++ yaffs_load_name_from_oh(obj->my_dev, tmp_name, oh->name, ++ YAFFS_MAX_NAME_LENGTH + 1); ++ yaffs_set_obj_name(obj, tmp_name); ++#else ++ yaffs_set_obj_name(obj, oh->name); ++#endif ++} ++ ++loff_t yaffs_max_file_size(struct yaffs_dev *dev) ++{ ++ if(sizeof(loff_t) < 8) ++ return YAFFS_MAX_FILE_SIZE_32; ++ else ++ return ((loff_t) YAFFS_MAX_CHUNK_ID) * dev->data_bytes_per_chunk; ++} ++ ++/*-------------------- TNODES ------------------- ++ ++ * List of spare tnodes ++ * The list is hooked together using the first pointer ++ * in the tnode. ++ */ ++ ++struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev) ++{ ++ struct yaffs_tnode *tn = yaffs_alloc_raw_tnode(dev); ++ ++ if (tn) { ++ memset(tn, 0, dev->tnode_size); ++ dev->n_tnodes++; ++ } ++ ++ dev->checkpoint_blocks_required = 0; /* force recalculation */ ++ ++ return tn; ++} ++ ++/* FreeTnode frees up a tnode and puts it back on the free list */ ++static void yaffs_free_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn) ++{ ++ yaffs_free_raw_tnode(dev, tn); ++ dev->n_tnodes--; ++ dev->checkpoint_blocks_required = 0; /* force recalculation */ ++} ++ ++static void yaffs_deinit_tnodes_and_objs(struct yaffs_dev *dev) ++{ ++ yaffs_deinit_raw_tnodes_and_objs(dev); ++ dev->n_obj = 0; ++ dev->n_tnodes = 0; ++} ++ ++static void yaffs_load_tnode_0(struct yaffs_dev *dev, struct yaffs_tnode *tn, ++ unsigned pos, unsigned val) ++{ ++ u32 *map = (u32 *) tn; ++ u32 bit_in_map; ++ u32 bit_in_word; ++ u32 word_in_map; ++ u32 mask; ++ ++ pos &= YAFFS_TNODES_LEVEL0_MASK; ++ val >>= dev->chunk_grp_bits; ++ ++ bit_in_map = pos * dev->tnode_width; ++ word_in_map = bit_in_map / 32; ++ bit_in_word = bit_in_map & (32 - 1); ++ ++ mask = dev->tnode_mask << bit_in_word; ++ ++ map[word_in_map] &= ~mask; ++ map[word_in_map] |= (mask & (val << bit_in_word)); ++ ++ if (dev->tnode_width > (32 - bit_in_word)) { ++ bit_in_word = (32 - bit_in_word); ++ word_in_map++; ++ mask = ++ dev->tnode_mask >> bit_in_word; ++ map[word_in_map] &= ~mask; ++ map[word_in_map] |= (mask & (val >> bit_in_word)); ++ } ++} ++ ++u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, ++ unsigned pos) ++{ ++ u32 *map = (u32 *) tn; ++ u32 bit_in_map; ++ u32 bit_in_word; ++ u32 word_in_map; ++ u32 val; ++ ++ pos &= YAFFS_TNODES_LEVEL0_MASK; ++ ++ bit_in_map = pos * dev->tnode_width; ++ word_in_map = bit_in_map / 32; ++ bit_in_word = bit_in_map & (32 - 1); ++ ++ val = map[word_in_map] >> bit_in_word; ++ ++ if (dev->tnode_width > (32 - bit_in_word)) { ++ bit_in_word = (32 - bit_in_word); ++ word_in_map++; ++ val |= (map[word_in_map] << bit_in_word); ++ } ++ ++ val &= dev->tnode_mask; ++ val <<= dev->chunk_grp_bits; ++ ++ return val; ++} ++ ++/* ------------------- End of individual tnode manipulation -----------------*/ ++ ++/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ ++ * The look up tree is represented by the top tnode and the number of top_level ++ * in the tree. 0 means only the level 0 tnode is in the tree. ++ */ ++ ++/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ ++struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, ++ struct yaffs_file_var *file_struct, ++ u32 chunk_id) ++{ ++ struct yaffs_tnode *tn = file_struct->top; ++ u32 i; ++ int required_depth; ++ int level = file_struct->top_level; ++ ++ (void) dev; ++ ++ /* Check sane level and chunk Id */ ++ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) ++ return NULL; ++ ++ if (chunk_id > YAFFS_MAX_CHUNK_ID) ++ return NULL; ++ ++ /* First check we're tall enough (ie enough top_level) */ ++ ++ i = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; ++ required_depth = 0; ++ while (i) { ++ i >>= YAFFS_TNODES_INTERNAL_BITS; ++ required_depth++; ++ } ++ ++ if (required_depth > file_struct->top_level) ++ return NULL; /* Not tall enough, so we can't find it */ ++ ++ /* Traverse down to level 0 */ ++ while (level > 0 && tn) { ++ tn = tn->internal[(chunk_id >> ++ (YAFFS_TNODES_LEVEL0_BITS + ++ (level - 1) * ++ YAFFS_TNODES_INTERNAL_BITS)) & ++ YAFFS_TNODES_INTERNAL_MASK]; ++ level--; ++ } ++ ++ return tn; ++} ++ ++/* add_find_tnode_0 finds the level 0 tnode if it exists, ++ * otherwise first expands the tree. ++ * This happens in two steps: ++ * 1. If the tree isn't tall enough, then make it taller. ++ * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. ++ * ++ * Used when modifying the tree. ++ * ++ * If the tn argument is NULL, then a fresh tnode will be added otherwise the ++ * specified tn will be plugged into the ttree. ++ */ ++ ++struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, ++ struct yaffs_file_var *file_struct, ++ u32 chunk_id, ++ struct yaffs_tnode *passed_tn) ++{ ++ int required_depth; ++ int i; ++ int l; ++ struct yaffs_tnode *tn; ++ u32 x; ++ ++ /* Check sane level and page Id */ ++ if (file_struct->top_level < 0 || ++ file_struct->top_level > YAFFS_TNODES_MAX_LEVEL) ++ return NULL; ++ ++ if (chunk_id > YAFFS_MAX_CHUNK_ID) ++ return NULL; ++ ++ /* First check we're tall enough (ie enough top_level) */ ++ ++ x = chunk_id >> YAFFS_TNODES_LEVEL0_BITS; ++ required_depth = 0; ++ while (x) { ++ x >>= YAFFS_TNODES_INTERNAL_BITS; ++ required_depth++; ++ } ++ ++ if (required_depth > file_struct->top_level) { ++ /* Not tall enough, gotta make the tree taller */ ++ for (i = file_struct->top_level; i < required_depth; i++) { ++ ++ tn = yaffs_get_tnode(dev); ++ ++ if (tn) { ++ tn->internal[0] = file_struct->top; ++ file_struct->top = tn; ++ file_struct->top_level++; ++ } else { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs: no more tnodes"); ++ return NULL; ++ } ++ } ++ } ++ ++ /* Traverse down to level 0, adding anything we need */ ++ ++ l = file_struct->top_level; ++ tn = file_struct->top; ++ ++ if (l > 0) { ++ while (l > 0 && tn) { ++ x = (chunk_id >> ++ (YAFFS_TNODES_LEVEL0_BITS + ++ (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & ++ YAFFS_TNODES_INTERNAL_MASK; ++ ++ if ((l > 1) && !tn->internal[x]) { ++ /* Add missing non-level-zero tnode */ ++ tn->internal[x] = yaffs_get_tnode(dev); ++ if (!tn->internal[x]) ++ return NULL; ++ } else if (l == 1) { ++ /* Looking from level 1 at level 0 */ ++ if (passed_tn) { ++ /* If we already have one, release it */ ++ if (tn->internal[x]) ++ yaffs_free_tnode(dev, ++ tn->internal[x]); ++ tn->internal[x] = passed_tn; ++ ++ } else if (!tn->internal[x]) { ++ /* Don't have one, none passed in */ ++ tn->internal[x] = yaffs_get_tnode(dev); ++ if (!tn->internal[x]) ++ return NULL; ++ } ++ } ++ ++ tn = tn->internal[x]; ++ l--; ++ } ++ } else { ++ /* top is level 0 */ ++ if (passed_tn) { ++ memcpy(tn, passed_tn, ++ (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8); ++ yaffs_free_tnode(dev, passed_tn); ++ } ++ } ++ ++ return tn; ++} ++ ++static int yaffs_tags_match(const struct yaffs_ext_tags *tags, int obj_id, ++ int chunk_obj) ++{ ++ return (tags->chunk_id == chunk_obj && ++ tags->obj_id == obj_id && ++ !tags->is_deleted) ? 1 : 0; ++ ++} ++ ++static int yaffs_find_chunk_in_group(struct yaffs_dev *dev, int the_chunk, ++ struct yaffs_ext_tags *tags, int obj_id, ++ int inode_chunk) ++{ ++ int j; ++ ++ for (j = 0; the_chunk && j < dev->chunk_grp_size; j++) { ++ if (yaffs_check_chunk_bit ++ (dev, the_chunk / dev->param.chunks_per_block, ++ the_chunk % dev->param.chunks_per_block)) { ++ ++ if (dev->chunk_grp_size == 1) ++ return the_chunk; ++ else { ++ yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL, ++ tags); ++ if (yaffs_tags_match(tags, ++ obj_id, inode_chunk)) { ++ /* found it; */ ++ return the_chunk; ++ } ++ } ++ } ++ the_chunk++; ++ } ++ return -1; ++} ++ ++int yaffs_find_chunk_in_file(struct yaffs_obj *in, int inode_chunk, ++ struct yaffs_ext_tags *tags) ++{ ++ /*Get the Tnode, then get the level 0 offset chunk offset */ ++ struct yaffs_tnode *tn; ++ int the_chunk = -1; ++ struct yaffs_ext_tags local_tags; ++ int ret_val = -1; ++ struct yaffs_dev *dev = in->my_dev; ++ ++ if (!tags) { ++ /* Passed a NULL, so use our own tags space */ ++ tags = &local_tags; ++ } ++ ++ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); ++ ++ if (!tn) ++ return ret_val; ++ ++ the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); ++ ++ ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, ++ inode_chunk); ++ return ret_val; ++} ++ ++static int yaffs_find_del_file_chunk(struct yaffs_obj *in, int inode_chunk, ++ struct yaffs_ext_tags *tags) ++{ ++ /* Get the Tnode, then get the level 0 offset chunk offset */ ++ struct yaffs_tnode *tn; ++ int the_chunk = -1; ++ struct yaffs_ext_tags local_tags; ++ struct yaffs_dev *dev = in->my_dev; ++ int ret_val = -1; ++ ++ if (!tags) { ++ /* Passed a NULL, so use our own tags space */ ++ tags = &local_tags; ++ } ++ ++ tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk); ++ ++ if (!tn) ++ return ret_val; ++ ++ the_chunk = yaffs_get_group_base(dev, tn, inode_chunk); ++ ++ ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id, ++ inode_chunk); ++ ++ /* Delete the entry in the filestructure (if found) */ ++ if (ret_val != -1) ++ yaffs_load_tnode_0(dev, tn, inode_chunk, 0); ++ ++ return ret_val; ++} ++ ++int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk, ++ int nand_chunk, int in_scan) ++{ ++ /* NB in_scan is zero unless scanning. ++ * For forward scanning, in_scan is > 0; ++ * for backward scanning in_scan is < 0 ++ * ++ * nand_chunk = 0 is a dummy insert to make sure the tnodes are there. ++ */ ++ ++ struct yaffs_tnode *tn; ++ struct yaffs_dev *dev = in->my_dev; ++ int existing_cunk; ++ struct yaffs_ext_tags existing_tags; ++ struct yaffs_ext_tags new_tags; ++ unsigned existing_serial, new_serial; ++ ++ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) { ++ /* Just ignore an attempt at putting a chunk into a non-file ++ * during scanning. ++ * If it is not during Scanning then something went wrong! ++ */ ++ if (!in_scan) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy:attempt to put data chunk into a non-file" ++ ); ++ BUG(); ++ } ++ ++ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); ++ return YAFFS_OK; ++ } ++ ++ tn = yaffs_add_find_tnode_0(dev, ++ &in->variant.file_variant, ++ inode_chunk, NULL); ++ if (!tn) ++ return YAFFS_FAIL; ++ ++ if (!nand_chunk) ++ /* Dummy insert, bail now */ ++ return YAFFS_OK; ++ ++ existing_cunk = yaffs_get_group_base(dev, tn, inode_chunk); ++ ++ if (in_scan != 0) { ++ /* If we're scanning then we need to test for duplicates ++ * NB This does not need to be efficient since it should only ++ * happen when the power fails during a write, then only one ++ * chunk should ever be affected. ++ * ++ * Correction for YAFFS2: This could happen quite a lot and we ++ * need to think about efficiency! TODO ++ * Update: For backward scanning we don't need to re-read tags ++ * so this is quite cheap. ++ */ ++ ++ if (existing_cunk > 0) { ++ /* NB Right now existing chunk will not be real ++ * chunk_id if the chunk group size > 1 ++ * thus we have to do a FindChunkInFile to get the ++ * real chunk id. ++ * ++ * We have a duplicate now we need to decide which ++ * one to use: ++ * ++ * Backwards scanning YAFFS2: The old one is what ++ * we use, dump the new one. ++ * YAFFS1: Get both sets of tags and compare serial ++ * numbers. ++ */ ++ ++ if (in_scan > 0) { ++ /* Only do this for forward scanning */ ++ yaffs_rd_chunk_tags_nand(dev, ++ nand_chunk, ++ NULL, &new_tags); ++ ++ /* Do a proper find */ ++ existing_cunk = ++ yaffs_find_chunk_in_file(in, inode_chunk, ++ &existing_tags); ++ } ++ ++ if (existing_cunk <= 0) { ++ /*Hoosterman - how did this happen? */ ++ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: existing chunk < 0 in scan" ++ ); ++ ++ } ++ ++ /* NB The deleted flags should be false, otherwise ++ * the chunks will not be loaded during a scan ++ */ ++ ++ if (in_scan > 0) { ++ new_serial = new_tags.serial_number; ++ existing_serial = existing_tags.serial_number; ++ } ++ ++ if ((in_scan > 0) && ++ (existing_cunk <= 0 || ++ ((existing_serial + 1) & 3) == new_serial)) { ++ /* Forward scanning. ++ * Use new ++ * Delete the old one and drop through to ++ * update the tnode ++ */ ++ yaffs_chunk_del(dev, existing_cunk, 1, ++ __LINE__); ++ } else { ++ /* Backward scanning or we want to use the ++ * existing one ++ * Delete the new one and return early so that ++ * the tnode isn't changed ++ */ ++ yaffs_chunk_del(dev, nand_chunk, 1, __LINE__); ++ return YAFFS_OK; ++ } ++ } ++ ++ } ++ ++ if (existing_cunk == 0) ++ in->n_data_chunks++; ++ ++ yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk); ++ ++ return YAFFS_OK; ++} ++ ++static void yaffs_soft_del_chunk(struct yaffs_dev *dev, int chunk) ++{ ++ struct yaffs_block_info *the_block; ++ unsigned block_no; ++ ++ yaffs_trace(YAFFS_TRACE_DELETION, "soft delete chunk %d", chunk); ++ ++ block_no = chunk / dev->param.chunks_per_block; ++ the_block = yaffs_get_block_info(dev, block_no); ++ if (the_block) { ++ the_block->soft_del_pages++; ++ dev->n_free_chunks++; ++ yaffs2_update_oldest_dirty_seq(dev, block_no, the_block); ++ } ++} ++ ++/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all ++ * the chunks in the file. ++ * All soft deleting does is increment the block's softdelete count and pulls ++ * the chunk out of the tnode. ++ * Thus, essentially this is the same as DeleteWorker except that the chunks ++ * are soft deleted. ++ */ ++ ++static int yaffs_soft_del_worker(struct yaffs_obj *in, struct yaffs_tnode *tn, ++ u32 level, int chunk_offset) ++{ ++ int i; ++ int the_chunk; ++ int all_done = 1; ++ struct yaffs_dev *dev = in->my_dev; ++ ++ if (!tn) ++ return 1; ++ ++ if (level > 0) { ++ for (i = YAFFS_NTNODES_INTERNAL - 1; ++ all_done && i >= 0; ++ i--) { ++ if (tn->internal[i]) { ++ all_done = ++ yaffs_soft_del_worker(in, ++ tn->internal[i], ++ level - 1, ++ (chunk_offset << ++ YAFFS_TNODES_INTERNAL_BITS) ++ + i); ++ if (all_done) { ++ yaffs_free_tnode(dev, ++ tn->internal[i]); ++ tn->internal[i] = NULL; ++ } else { ++ /* Can this happen? */ ++ } ++ } ++ } ++ return (all_done) ? 1 : 0; ++ } ++ ++ /* level 0 */ ++ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { ++ the_chunk = yaffs_get_group_base(dev, tn, i); ++ if (the_chunk) { ++ yaffs_soft_del_chunk(dev, the_chunk); ++ yaffs_load_tnode_0(dev, tn, i, 0); ++ } ++ } ++ return 1; ++} ++ ++static void yaffs_remove_obj_from_dir(struct yaffs_obj *obj) ++{ ++ struct yaffs_dev *dev = obj->my_dev; ++ struct yaffs_obj *parent; ++ ++ yaffs_verify_obj_in_dir(obj); ++ parent = obj->parent; ++ ++ yaffs_verify_dir(parent); ++ ++ if (dev && dev->param.remove_obj_fn) ++ dev->param.remove_obj_fn(obj); ++ ++ list_del_init(&obj->siblings); ++ obj->parent = NULL; ++ ++ yaffs_verify_dir(parent); ++} ++ ++void yaffs_add_obj_to_dir(struct yaffs_obj *directory, struct yaffs_obj *obj) ++{ ++ if (!directory) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "tragedy: Trying to add an object to a null pointer directory" ++ ); ++ BUG(); ++ return; ++ } ++ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "tragedy: Trying to add an object to a non-directory" ++ ); ++ BUG(); ++ } ++ ++ if (obj->siblings.prev == NULL) { ++ /* Not initialised */ ++ BUG(); ++ } ++ ++ yaffs_verify_dir(directory); ++ ++ yaffs_remove_obj_from_dir(obj); ++ ++ /* Now add it */ ++ list_add(&obj->siblings, &directory->variant.dir_variant.children); ++ obj->parent = directory; ++ ++ if (directory == obj->my_dev->unlinked_dir ++ || directory == obj->my_dev->del_dir) { ++ obj->unlinked = 1; ++ obj->my_dev->n_unlinked_files++; ++ obj->rename_allowed = 0; ++ } ++ ++ yaffs_verify_dir(directory); ++ yaffs_verify_obj_in_dir(obj); ++} ++ ++static int yaffs_change_obj_name(struct yaffs_obj *obj, ++ struct yaffs_obj *new_dir, ++ const YCHAR *new_name, int force, int shadows) ++{ ++ int unlink_op; ++ int del_op; ++ struct yaffs_obj *existing_target; ++ ++ if (new_dir == NULL) ++ new_dir = obj->parent; /* use the old directory */ ++ ++ if (new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "tragedy: yaffs_change_obj_name: new_dir is not a directory" ++ ); ++ BUG(); ++ } ++ ++ unlink_op = (new_dir == obj->my_dev->unlinked_dir); ++ del_op = (new_dir == obj->my_dev->del_dir); ++ ++ existing_target = yaffs_find_by_name(new_dir, new_name); ++ ++ /* If the object is a file going into the unlinked directory, ++ * then it is OK to just stuff it in since duplicate names are OK. ++ * else only proceed if the new name does not exist and we're putting ++ * it into a directory. ++ */ ++ if (!(unlink_op || del_op || force || ++ shadows > 0 || !existing_target) || ++ new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) ++ return YAFFS_FAIL; ++ ++ yaffs_set_obj_name(obj, new_name); ++ obj->dirty = 1; ++ yaffs_add_obj_to_dir(new_dir, obj); ++ ++ if (unlink_op) ++ obj->unlinked = 1; ++ ++ /* If it is a deletion then we mark it as a shrink for gc */ ++ if (yaffs_update_oh(obj, new_name, 0, del_op, shadows, NULL) >= 0) ++ return YAFFS_OK; ++ ++ return YAFFS_FAIL; ++} ++ ++/*------------------------ Short Operations Cache ------------------------------ ++ * In many situations where there is no high level buffering a lot of ++ * reads might be short sequential reads, and a lot of writes may be short ++ * sequential writes. eg. scanning/writing a jpeg file. ++ * In these cases, a short read/write cache can provide a huge perfomance ++ * benefit with dumb-as-a-rock code. ++ * In Linux, the page cache provides read buffering and the short op cache ++ * provides write buffering. ++ * ++ * There are a small number (~10) of cache chunks per device so that we don't ++ * need a very intelligent search. ++ */ ++ ++static int yaffs_obj_cache_dirty(struct yaffs_obj *obj) ++{ ++ struct yaffs_dev *dev = obj->my_dev; ++ int i; ++ struct yaffs_cache *cache; ++ int n_caches = obj->my_dev->param.n_caches; ++ ++ for (i = 0; i < n_caches; i++) { ++ cache = &dev->cache[i]; ++ if (cache->object == obj && cache->dirty) ++ return 1; ++ } ++ ++ return 0; ++} ++ ++static void yaffs_flush_file_cache(struct yaffs_obj *obj) ++{ ++ struct yaffs_dev *dev = obj->my_dev; ++ int lowest = -99; /* Stop compiler whining. */ ++ int i; ++ struct yaffs_cache *cache; ++ int chunk_written = 0; ++ int n_caches = obj->my_dev->param.n_caches; ++ ++ if (n_caches < 1) ++ return; ++ do { ++ cache = NULL; ++ ++ /* Find the lowest dirty chunk for this object */ ++ for (i = 0; i < n_caches; i++) { ++ if (dev->cache[i].object == obj && ++ dev->cache[i].dirty) { ++ if (!cache || ++ dev->cache[i].chunk_id < lowest) { ++ cache = &dev->cache[i]; ++ lowest = cache->chunk_id; ++ } ++ } ++ } ++ ++ if (cache && !cache->locked) { ++ /* Write it out and free it up */ ++ chunk_written = ++ yaffs_wr_data_obj(cache->object, ++ cache->chunk_id, ++ cache->data, ++ cache->n_bytes, 1); ++ cache->dirty = 0; ++ cache->object = NULL; ++ } ++ } while (cache && chunk_written > 0); ++ ++ if (cache) ++ /* Hoosterman, disk full while writing cache out. */ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: no space during cache write"); ++} ++ ++/*yaffs_flush_whole_cache(dev) ++ * ++ * ++ */ ++ ++void yaffs_flush_whole_cache(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj; ++ int n_caches = dev->param.n_caches; ++ int i; ++ ++ /* Find a dirty object in the cache and flush it... ++ * until there are no further dirty objects. ++ */ ++ do { ++ obj = NULL; ++ for (i = 0; i < n_caches && !obj; i++) { ++ if (dev->cache[i].object && dev->cache[i].dirty) ++ obj = dev->cache[i].object; ++ } ++ if (obj) ++ yaffs_flush_file_cache(obj); ++ } while (obj); ++ ++} ++ ++/* Grab us a cache chunk for use. ++ * First look for an empty one. ++ * Then look for the least recently used non-dirty one. ++ * Then look for the least recently used dirty one...., flush and look again. ++ */ ++static struct yaffs_cache *yaffs_grab_chunk_worker(struct yaffs_dev *dev) ++{ ++ int i; ++ ++ if (dev->param.n_caches > 0) { ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (!dev->cache[i].object) ++ return &dev->cache[i]; ++ } ++ } ++ return NULL; ++} ++ ++static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev) ++{ ++ struct yaffs_cache *cache; ++ struct yaffs_obj *the_obj; ++ int usage; ++ int i; ++ int pushout; ++ ++ if (dev->param.n_caches < 1) ++ return NULL; ++ ++ /* Try find a non-dirty one... */ ++ ++ cache = yaffs_grab_chunk_worker(dev); ++ ++ if (!cache) { ++ /* They were all dirty, find the LRU object and flush ++ * its cache, then find again. ++ * NB what's here is not very accurate, ++ * we actually flush the object with the LRU chunk. ++ */ ++ ++ /* With locking we can't assume we can use entry zero, ++ * Set the_obj to a valid pointer for Coverity. */ ++ the_obj = dev->cache[0].object; ++ usage = -1; ++ cache = NULL; ++ pushout = -1; ++ ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].object && ++ !dev->cache[i].locked && ++ (dev->cache[i].last_use < usage || ++ !cache)) { ++ usage = dev->cache[i].last_use; ++ the_obj = dev->cache[i].object; ++ cache = &dev->cache[i]; ++ pushout = i; ++ } ++ } ++ ++ if (!cache || cache->dirty) { ++ /* Flush and try again */ ++ yaffs_flush_file_cache(the_obj); ++ cache = yaffs_grab_chunk_worker(dev); ++ } ++ } ++ return cache; ++} ++ ++/* Find a cached chunk */ ++static struct yaffs_cache *yaffs_find_chunk_cache(const struct yaffs_obj *obj, ++ int chunk_id) ++{ ++ struct yaffs_dev *dev = obj->my_dev; ++ int i; ++ ++ if (dev->param.n_caches < 1) ++ return NULL; ++ ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].object == obj && ++ dev->cache[i].chunk_id == chunk_id) { ++ dev->cache_hits++; ++ ++ return &dev->cache[i]; ++ } ++ } ++ return NULL; ++} ++ ++/* Mark the chunk for the least recently used algorithym */ ++static void yaffs_use_cache(struct yaffs_dev *dev, struct yaffs_cache *cache, ++ int is_write) ++{ ++ int i; ++ ++ if (dev->param.n_caches < 1) ++ return; ++ ++ if (dev->cache_last_use < 0 || ++ dev->cache_last_use > 100000000) { ++ /* Reset the cache usages */ ++ for (i = 1; i < dev->param.n_caches; i++) ++ dev->cache[i].last_use = 0; ++ ++ dev->cache_last_use = 0; ++ } ++ dev->cache_last_use++; ++ cache->last_use = dev->cache_last_use; ++ ++ if (is_write) ++ cache->dirty = 1; ++} ++ ++/* Invalidate a single cache page. ++ * Do this when a whole page gets written, ++ * ie the short cache for this page is no longer valid. ++ */ ++static void yaffs_invalidate_chunk_cache(struct yaffs_obj *object, int chunk_id) ++{ ++ struct yaffs_cache *cache; ++ ++ if (object->my_dev->param.n_caches > 0) { ++ cache = yaffs_find_chunk_cache(object, chunk_id); ++ ++ if (cache) ++ cache->object = NULL; ++ } ++} ++ ++/* Invalidate all the cache pages associated with this object ++ * Do this whenever ther file is deleted or resized. ++ */ ++static void yaffs_invalidate_whole_cache(struct yaffs_obj *in) ++{ ++ int i; ++ struct yaffs_dev *dev = in->my_dev; ++ ++ if (dev->param.n_caches > 0) { ++ /* Invalidate it. */ ++ for (i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].object == in) ++ dev->cache[i].object = NULL; ++ } ++ } ++} ++ ++static void yaffs_unhash_obj(struct yaffs_obj *obj) ++{ ++ int bucket; ++ struct yaffs_dev *dev = obj->my_dev; ++ ++ /* If it is still linked into the bucket list, free from the list */ ++ if (!list_empty(&obj->hash_link)) { ++ list_del_init(&obj->hash_link); ++ bucket = yaffs_hash_fn(obj->obj_id); ++ dev->obj_bucket[bucket].count--; ++ } ++} ++ ++/* FreeObject frees up a Object and puts it back on the free list */ ++static void yaffs_free_obj(struct yaffs_obj *obj) ++{ ++ struct yaffs_dev *dev; ++ ++ if (!obj) { ++ BUG(); ++ return; ++ } ++ dev = obj->my_dev; ++ yaffs_trace(YAFFS_TRACE_OS, "FreeObject %p inode %p", ++ obj, obj->my_inode); ++ if (obj->parent) ++ BUG(); ++ if (!list_empty(&obj->siblings)) ++ BUG(); ++ ++ if (obj->my_inode) { ++ /* We're still hooked up to a cached inode. ++ * Don't delete now, but mark for later deletion ++ */ ++ obj->defered_free = 1; ++ return; ++ } ++ ++ yaffs_unhash_obj(obj); ++ ++ yaffs_free_raw_obj(dev, obj); ++ dev->n_obj--; ++ dev->checkpoint_blocks_required = 0; /* force recalculation */ ++} ++ ++void yaffs_handle_defered_free(struct yaffs_obj *obj) ++{ ++ if (obj->defered_free) ++ yaffs_free_obj(obj); ++} ++ ++static int yaffs_generic_obj_del(struct yaffs_obj *in) ++{ ++ /* Iinvalidate the file's data in the cache, without flushing. */ ++ yaffs_invalidate_whole_cache(in); ++ ++ if (in->my_dev->param.is_yaffs2 && in->parent != in->my_dev->del_dir) { ++ /* Move to unlinked directory so we have a deletion record */ ++ yaffs_change_obj_name(in, in->my_dev->del_dir, _Y("deleted"), 0, ++ 0); ++ } ++ ++ yaffs_remove_obj_from_dir(in); ++ yaffs_chunk_del(in->my_dev, in->hdr_chunk, 1, __LINE__); ++ in->hdr_chunk = 0; ++ ++ yaffs_free_obj(in); ++ return YAFFS_OK; ++ ++} ++ ++static void yaffs_soft_del_file(struct yaffs_obj *obj) ++{ ++ if (!obj->deleted || ++ obj->variant_type != YAFFS_OBJECT_TYPE_FILE || ++ obj->soft_del) ++ return; ++ ++ if (obj->n_data_chunks <= 0) { ++ /* Empty file with no duplicate object headers, ++ * just delete it immediately */ ++ yaffs_free_tnode(obj->my_dev, obj->variant.file_variant.top); ++ obj->variant.file_variant.top = NULL; ++ yaffs_trace(YAFFS_TRACE_TRACING, ++ "yaffs: Deleting empty file %d", ++ obj->obj_id); ++ yaffs_generic_obj_del(obj); ++ } else { ++ yaffs_soft_del_worker(obj, ++ obj->variant.file_variant.top, ++ obj->variant. ++ file_variant.top_level, 0); ++ obj->soft_del = 1; ++ } ++} ++ ++/* Pruning removes any part of the file structure tree that is beyond the ++ * bounds of the file (ie that does not point to chunks). ++ * ++ * A file should only get pruned when its size is reduced. ++ * ++ * Before pruning, the chunks must be pulled from the tree and the ++ * level 0 tnode entries must be zeroed out. ++ * Could also use this for file deletion, but that's probably better handled ++ * by a special case. ++ * ++ * This function is recursive. For levels > 0 the function is called again on ++ * any sub-tree. For level == 0 we just check if the sub-tree has data. ++ * If there is no data in a subtree then it is pruned. ++ */ ++ ++static struct yaffs_tnode *yaffs_prune_worker(struct yaffs_dev *dev, ++ struct yaffs_tnode *tn, u32 level, ++ int del0) ++{ ++ int i; ++ int has_data; ++ ++ if (!tn) ++ return tn; ++ ++ has_data = 0; ++ ++ if (level > 0) { ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { ++ if (tn->internal[i]) { ++ tn->internal[i] = ++ yaffs_prune_worker(dev, ++ tn->internal[i], ++ level - 1, ++ (i == 0) ? del0 : 1); ++ } ++ ++ if (tn->internal[i]) ++ has_data++; ++ } ++ } else { ++ int tnode_size_u32 = dev->tnode_size / sizeof(u32); ++ u32 *map = (u32 *) tn; ++ ++ for (i = 0; !has_data && i < tnode_size_u32; i++) { ++ if (map[i]) ++ has_data++; ++ } ++ } ++ ++ if (has_data == 0 && del0) { ++ /* Free and return NULL */ ++ yaffs_free_tnode(dev, tn); ++ tn = NULL; ++ } ++ return tn; ++} ++ ++static int yaffs_prune_tree(struct yaffs_dev *dev, ++ struct yaffs_file_var *file_struct) ++{ ++ int i; ++ int has_data; ++ int done = 0; ++ struct yaffs_tnode *tn; ++ ++ if (file_struct->top_level < 1) ++ return YAFFS_OK; ++ ++ file_struct->top = ++ yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0); ++ ++ /* Now we have a tree with all the non-zero branches NULL but ++ * the height is the same as it was. ++ * Let's see if we can trim internal tnodes to shorten the tree. ++ * We can do this if only the 0th element in the tnode is in use ++ * (ie all the non-zero are NULL) ++ */ ++ ++ while (file_struct->top_level && !done) { ++ tn = file_struct->top; ++ ++ has_data = 0; ++ for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { ++ if (tn->internal[i]) ++ has_data++; ++ } ++ ++ if (!has_data) { ++ file_struct->top = tn->internal[0]; ++ file_struct->top_level--; ++ yaffs_free_tnode(dev, tn); ++ } else { ++ done = 1; ++ } ++ } ++ ++ return YAFFS_OK; ++} ++ ++/*-------------------- End of File Structure functions.-------------------*/ ++ ++/* alloc_empty_obj gets us a clean Object.*/ ++static struct yaffs_obj *yaffs_alloc_empty_obj(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj = yaffs_alloc_raw_obj(dev); ++ ++ if (!obj) ++ return obj; ++ ++ dev->n_obj++; ++ ++ /* Now sweeten it up... */ ++ ++ memset(obj, 0, sizeof(struct yaffs_obj)); ++ obj->being_created = 1; ++ ++ obj->my_dev = dev; ++ obj->hdr_chunk = 0; ++ obj->variant_type = YAFFS_OBJECT_TYPE_UNKNOWN; ++ INIT_LIST_HEAD(&(obj->hard_links)); ++ INIT_LIST_HEAD(&(obj->hash_link)); ++ INIT_LIST_HEAD(&obj->siblings); ++ ++ /* Now make the directory sane */ ++ if (dev->root_dir) { ++ obj->parent = dev->root_dir; ++ list_add(&(obj->siblings), ++ &dev->root_dir->variant.dir_variant.children); ++ } ++ ++ /* Add it to the lost and found directory. ++ * NB Can't put root or lost-n-found in lost-n-found so ++ * check if lost-n-found exists first ++ */ ++ if (dev->lost_n_found) ++ yaffs_add_obj_to_dir(dev->lost_n_found, obj); ++ ++ obj->being_created = 0; ++ ++ dev->checkpoint_blocks_required = 0; /* force recalculation */ ++ ++ return obj; ++} ++ ++static int yaffs_find_nice_bucket(struct yaffs_dev *dev) ++{ ++ int i; ++ int l = 999; ++ int lowest = 999999; ++ ++ /* Search for the shortest list or one that ++ * isn't too long. ++ */ ++ ++ for (i = 0; i < 10 && lowest > 4; i++) { ++ dev->bucket_finder++; ++ dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS; ++ if (dev->obj_bucket[dev->bucket_finder].count < lowest) { ++ lowest = dev->obj_bucket[dev->bucket_finder].count; ++ l = dev->bucket_finder; ++ } ++ } ++ ++ return l; ++} ++ ++static int yaffs_new_obj_id(struct yaffs_dev *dev) ++{ ++ int bucket = yaffs_find_nice_bucket(dev); ++ int found = 0; ++ struct list_head *i; ++ u32 n = (u32) bucket; ++ ++ /* Now find an object value that has not already been taken ++ * by scanning the list. ++ */ ++ ++ while (!found) { ++ found = 1; ++ n += YAFFS_NOBJECT_BUCKETS; ++ if (1 || dev->obj_bucket[bucket].count > 0) { ++ list_for_each(i, &dev->obj_bucket[bucket].list) { ++ /* If there is already one in the list */ ++ if (i && list_entry(i, struct yaffs_obj, ++ hash_link)->obj_id == n) { ++ found = 0; ++ } ++ } ++ } ++ } ++ return n; ++} ++ ++static void yaffs_hash_obj(struct yaffs_obj *in) ++{ ++ int bucket = yaffs_hash_fn(in->obj_id); ++ struct yaffs_dev *dev = in->my_dev; ++ ++ list_add(&in->hash_link, &dev->obj_bucket[bucket].list); ++ dev->obj_bucket[bucket].count++; ++} ++ ++struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number) ++{ ++ int bucket = yaffs_hash_fn(number); ++ struct list_head *i; ++ struct yaffs_obj *in; ++ ++ list_for_each(i, &dev->obj_bucket[bucket].list) { ++ /* Look if it is in the list */ ++ in = list_entry(i, struct yaffs_obj, hash_link); ++ if (in->obj_id == number) { ++ /* Don't show if it is defered free */ ++ if (in->defered_free) ++ return NULL; ++ return in; ++ } ++ } ++ ++ return NULL; ++} ++ ++static struct yaffs_obj *yaffs_new_obj(struct yaffs_dev *dev, int number, ++ enum yaffs_obj_type type) ++{ ++ struct yaffs_obj *the_obj = NULL; ++ struct yaffs_tnode *tn = NULL; ++ ++ if (number < 0) ++ number = yaffs_new_obj_id(dev); ++ ++ if (type == YAFFS_OBJECT_TYPE_FILE) { ++ tn = yaffs_get_tnode(dev); ++ if (!tn) ++ return NULL; ++ } ++ ++ the_obj = yaffs_alloc_empty_obj(dev); ++ if (!the_obj) { ++ if (tn) ++ yaffs_free_tnode(dev, tn); ++ return NULL; ++ } ++ ++ the_obj->fake = 0; ++ the_obj->rename_allowed = 1; ++ the_obj->unlink_allowed = 1; ++ the_obj->obj_id = number; ++ yaffs_hash_obj(the_obj); ++ the_obj->variant_type = type; ++ yaffs_load_current_time(the_obj, 1, 1); ++ ++ switch (type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ the_obj->variant.file_variant.file_size = 0; ++ the_obj->variant.file_variant.scanned_size = 0; ++ the_obj->variant.file_variant.shrink_size = ++ yaffs_max_file_size(dev); ++ the_obj->variant.file_variant.top_level = 0; ++ the_obj->variant.file_variant.top = tn; ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ INIT_LIST_HEAD(&the_obj->variant.dir_variant.children); ++ INIT_LIST_HEAD(&the_obj->variant.dir_variant.dirty); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* No action required */ ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* todo this should not happen */ ++ break; ++ } ++ return the_obj; ++} ++ ++static struct yaffs_obj *yaffs_create_fake_dir(struct yaffs_dev *dev, ++ int number, u32 mode) ++{ ++ ++ struct yaffs_obj *obj = ++ yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); ++ ++ if (!obj) ++ return NULL; ++ ++ obj->fake = 1; /* it is fake so it might not use NAND */ ++ obj->rename_allowed = 0; ++ obj->unlink_allowed = 0; ++ obj->deleted = 0; ++ obj->unlinked = 0; ++ obj->yst_mode = mode; ++ obj->my_dev = dev; ++ obj->hdr_chunk = 0; /* Not a valid chunk. */ ++ return obj; ++ ++} ++ ++ ++static void yaffs_init_tnodes_and_objs(struct yaffs_dev *dev) ++{ ++ int i; ++ ++ dev->n_obj = 0; ++ dev->n_tnodes = 0; ++ yaffs_init_raw_tnodes_and_objs(dev); ++ ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ INIT_LIST_HEAD(&dev->obj_bucket[i].list); ++ dev->obj_bucket[i].count = 0; ++ } ++} ++ ++struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, ++ int number, ++ enum yaffs_obj_type type) ++{ ++ struct yaffs_obj *the_obj = NULL; ++ ++ if (number > 0) ++ the_obj = yaffs_find_by_number(dev, number); ++ ++ if (!the_obj) ++ the_obj = yaffs_new_obj(dev, number, type); ++ ++ return the_obj; ++ ++} ++ ++YCHAR *yaffs_clone_str(const YCHAR *str) ++{ ++ YCHAR *new_str = NULL; ++ int len; ++ ++ if (!str) ++ str = _Y(""); ++ ++ len = strnlen(str, YAFFS_MAX_ALIAS_LENGTH); ++ new_str = kmalloc((len + 1) * sizeof(YCHAR), GFP_NOFS); ++ if (new_str) { ++ strncpy(new_str, str, len); ++ new_str[len] = 0; ++ } ++ return new_str; ++ ++} ++/* ++ *yaffs_update_parent() handles fixing a directories mtime and ctime when a new ++ * link (ie. name) is created or deleted in the directory. ++ * ++ * ie. ++ * create dir/a : update dir's mtime/ctime ++ * rm dir/a: update dir's mtime/ctime ++ * modify dir/a: don't update dir's mtimme/ctime ++ * ++ * This can be handled immediately or defered. Defering helps reduce the number ++ * of updates when many files in a directory are changed within a brief period. ++ * ++ * If the directory updating is defered then yaffs_update_dirty_dirs must be ++ * called periodically. ++ */ ++ ++static void yaffs_update_parent(struct yaffs_obj *obj) ++{ ++ struct yaffs_dev *dev; ++ ++ if (!obj) ++ return; ++ dev = obj->my_dev; ++ obj->dirty = 1; ++ yaffs_load_current_time(obj, 0, 1); ++ if (dev->param.defered_dir_update) { ++ struct list_head *link = &obj->variant.dir_variant.dirty; ++ ++ if (list_empty(link)) { ++ list_add(link, &dev->dirty_dirs); ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, ++ "Added object %d to dirty directories", ++ obj->obj_id); ++ } ++ ++ } else { ++ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); ++ } ++} ++ ++void yaffs_update_dirty_dirs(struct yaffs_dev *dev) ++{ ++ struct list_head *link; ++ struct yaffs_obj *obj; ++ struct yaffs_dir_var *d_s; ++ union yaffs_obj_var *o_v; ++ ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, "Update dirty directories"); ++ ++ while (!list_empty(&dev->dirty_dirs)) { ++ link = dev->dirty_dirs.next; ++ list_del_init(link); ++ ++ d_s = list_entry(link, struct yaffs_dir_var, dirty); ++ o_v = list_entry(d_s, union yaffs_obj_var, dir_variant); ++ obj = list_entry(o_v, struct yaffs_obj, variant); ++ ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, "Update directory %d", ++ obj->obj_id); ++ ++ if (obj->dirty) ++ yaffs_update_oh(obj, NULL, 0, 0, 0, NULL); ++ } ++} ++ ++/* ++ * Mknod (create) a new object. ++ * equiv_obj only has meaning for a hard link; ++ * alias_str only has meaning for a symlink. ++ * rdev only has meaning for devices (a subset of special objects) ++ */ ++ ++static struct yaffs_obj *yaffs_create_obj(enum yaffs_obj_type type, ++ struct yaffs_obj *parent, ++ const YCHAR *name, ++ u32 mode, ++ u32 uid, ++ u32 gid, ++ struct yaffs_obj *equiv_obj, ++ const YCHAR *alias_str, u32 rdev) ++{ ++ struct yaffs_obj *in; ++ YCHAR *str = NULL; ++ struct yaffs_dev *dev = parent->my_dev; ++ ++ /* Check if the entry exists. ++ * If it does then fail the call since we don't want a dup. */ ++ if (yaffs_find_by_name(parent, name)) ++ return NULL; ++ ++ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { ++ str = yaffs_clone_str(alias_str); ++ if (!str) ++ return NULL; ++ } ++ ++ in = yaffs_new_obj(dev, -1, type); ++ ++ if (!in) { ++ kfree(str); ++ return NULL; ++ } ++ ++ in->hdr_chunk = 0; ++ in->valid = 1; ++ in->variant_type = type; ++ ++ in->yst_mode = mode; ++ ++ yaffs_attribs_init(in, gid, uid, rdev); ++ ++ in->n_data_chunks = 0; ++ ++ yaffs_set_obj_name(in, name); ++ in->dirty = 1; ++ ++ yaffs_add_obj_to_dir(parent, in); ++ ++ in->my_dev = parent->my_dev; ++ ++ switch (type) { ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ in->variant.symlink_variant.alias = str; ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ in->variant.hardlink_variant.equiv_obj = equiv_obj; ++ in->variant.hardlink_variant.equiv_id = equiv_obj->obj_id; ++ list_add(&in->hard_links, &equiv_obj->hard_links); ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* do nothing */ ++ break; ++ } ++ ++ if (yaffs_update_oh(in, name, 0, 0, 0, NULL) < 0) { ++ /* Could not create the object header, fail */ ++ yaffs_del_obj(in); ++ in = NULL; ++ } ++ ++ if (in) ++ yaffs_update_parent(parent); ++ ++ return in; ++} ++ ++struct yaffs_obj *yaffs_create_file(struct yaffs_obj *parent, ++ const YCHAR *name, u32 mode, u32 uid, ++ u32 gid) ++{ ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, ++ uid, gid, NULL, NULL, 0); ++} ++ ++struct yaffs_obj *yaffs_create_dir(struct yaffs_obj *parent, const YCHAR *name, ++ u32 mode, u32 uid, u32 gid) ++{ ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, ++ mode, uid, gid, NULL, NULL, 0); ++} ++ ++struct yaffs_obj *yaffs_create_special(struct yaffs_obj *parent, ++ const YCHAR *name, u32 mode, u32 uid, ++ u32 gid, u32 rdev) ++{ ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, ++ uid, gid, NULL, NULL, rdev); ++} ++ ++struct yaffs_obj *yaffs_create_symlink(struct yaffs_obj *parent, ++ const YCHAR *name, u32 mode, u32 uid, ++ u32 gid, const YCHAR *alias) ++{ ++ return yaffs_create_obj(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, ++ uid, gid, NULL, alias, 0); ++} ++ ++/* yaffs_link_obj returns the object id of the equivalent object.*/ ++struct yaffs_obj *yaffs_link_obj(struct yaffs_obj *parent, const YCHAR * name, ++ struct yaffs_obj *equiv_obj) ++{ ++ /* Get the real object in case we were fed a hard link obj */ ++ equiv_obj = yaffs_get_equivalent_obj(equiv_obj); ++ ++ if (yaffs_create_obj(YAFFS_OBJECT_TYPE_HARDLINK, ++ parent, name, 0, 0, 0, ++ equiv_obj, NULL, 0)) ++ return equiv_obj; ++ ++ return NULL; ++ ++} ++ ++ ++ ++/*---------------------- Block Management and Page Allocation -------------*/ ++ ++static void yaffs_deinit_blocks(struct yaffs_dev *dev) ++{ ++ if (dev->block_info_alt && dev->block_info) ++ vfree(dev->block_info); ++ else ++ kfree(dev->block_info); ++ ++ dev->block_info_alt = 0; ++ ++ dev->block_info = NULL; ++ ++ if (dev->chunk_bits_alt && dev->chunk_bits) ++ vfree(dev->chunk_bits); ++ else ++ kfree(dev->chunk_bits); ++ dev->chunk_bits_alt = 0; ++ dev->chunk_bits = NULL; ++} ++ ++static int yaffs_init_blocks(struct yaffs_dev *dev) ++{ ++ int n_blocks = dev->internal_end_block - dev->internal_start_block + 1; ++ ++ dev->block_info = NULL; ++ dev->chunk_bits = NULL; ++ dev->alloc_block = -1; /* force it to get a new one */ ++ ++ /* If the first allocation strategy fails, thry the alternate one */ ++ dev->block_info = ++ kmalloc(n_blocks * sizeof(struct yaffs_block_info), GFP_NOFS); ++ if (!dev->block_info) { ++ dev->block_info = ++ vmalloc(n_blocks * sizeof(struct yaffs_block_info)); ++ dev->block_info_alt = 1; ++ } else { ++ dev->block_info_alt = 0; ++ } ++ ++ if (!dev->block_info) ++ goto alloc_error; ++ ++ /* Set up dynamic blockinfo stuff. Round up bytes. */ ++ dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; ++ dev->chunk_bits = ++ kmalloc(dev->chunk_bit_stride * n_blocks, GFP_NOFS); ++ if (!dev->chunk_bits) { ++ dev->chunk_bits = ++ vmalloc(dev->chunk_bit_stride * n_blocks); ++ dev->chunk_bits_alt = 1; ++ } else { ++ dev->chunk_bits_alt = 0; ++ } ++ if (!dev->chunk_bits) ++ goto alloc_error; ++ ++ ++ memset(dev->block_info, 0, n_blocks * sizeof(struct yaffs_block_info)); ++ memset(dev->chunk_bits, 0, dev->chunk_bit_stride * n_blocks); ++ return YAFFS_OK; ++ ++alloc_error: ++ yaffs_deinit_blocks(dev); ++ return YAFFS_FAIL; ++} ++ ++ ++void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no) ++{ ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, block_no); ++ int erased_ok = 0; ++ int i; ++ ++ /* If the block is still healthy erase it and mark as clean. ++ * If the block has had a data failure, then retire it. ++ */ ++ ++ yaffs_trace(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, ++ "yaffs_block_became_dirty block %d state %d %s", ++ block_no, bi->block_state, ++ (bi->needs_retiring) ? "needs retiring" : ""); ++ ++ yaffs2_clear_oldest_dirty_seq(dev, bi); ++ ++ bi->block_state = YAFFS_BLOCK_STATE_DIRTY; ++ ++ /* If this is the block being garbage collected then stop gc'ing */ ++ if (block_no == dev->gc_block) ++ dev->gc_block = 0; ++ ++ /* If this block is currently the best candidate for gc ++ * then drop as a candidate */ ++ if (block_no == dev->gc_dirtiest) { ++ dev->gc_dirtiest = 0; ++ dev->gc_pages_in_use = 0; ++ } ++ ++ if (!bi->needs_retiring) { ++ yaffs2_checkpt_invalidate(dev); ++ erased_ok = yaffs_erase_block(dev, block_no); ++ if (!erased_ok) { ++ dev->n_erase_failures++; ++ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ "**>> Erasure failed %d", block_no); ++ } ++ } ++ ++ /* Verify erasure if needed */ ++ if (erased_ok && ++ ((yaffs_trace_mask & YAFFS_TRACE_ERASE) || ++ !yaffs_skip_verification(dev))) { ++ for (i = 0; i < dev->param.chunks_per_block; i++) { ++ if (!yaffs_check_chunk_erased(dev, ++ block_no * dev->param.chunks_per_block + i)) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ ">>Block %d erasure supposedly OK, but chunk %d not erased", ++ block_no, i); ++ } ++ } ++ } ++ ++ if (!erased_ok) { ++ /* We lost a block of free space */ ++ dev->n_free_chunks -= dev->param.chunks_per_block; ++ yaffs_retire_block(dev, block_no); ++ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ "**>> Block %d retired", block_no); ++ return; ++ } ++ ++ /* Clean it up... */ ++ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; ++ bi->seq_number = 0; ++ dev->n_erased_blocks++; ++ bi->pages_in_use = 0; ++ bi->soft_del_pages = 0; ++ bi->has_shrink_hdr = 0; ++ bi->skip_erased_check = 1; /* Clean, so no need to check */ ++ bi->gc_prioritise = 0; ++ bi->has_summary = 0; ++ ++ yaffs_clear_chunk_bits(dev, block_no); ++ ++ yaffs_trace(YAFFS_TRACE_ERASE, "Erased block %d", block_no); ++} ++ ++static inline int yaffs_gc_process_chunk(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi, ++ int old_chunk, u8 *buffer) ++{ ++ int new_chunk; ++ int mark_flash = 1; ++ struct yaffs_ext_tags tags; ++ struct yaffs_obj *object; ++ int matching_chunk; ++ int ret_val = YAFFS_OK; ++ ++ memset(&tags, 0, sizeof(tags)); ++ yaffs_rd_chunk_tags_nand(dev, old_chunk, ++ buffer, &tags); ++ object = yaffs_find_by_number(dev, tags.obj_id); ++ ++ yaffs_trace(YAFFS_TRACE_GC_DETAIL, ++ "Collecting chunk in block %d, %d %d %d ", ++ dev->gc_chunk, tags.obj_id, ++ tags.chunk_id, tags.n_bytes); ++ ++ if (object && !yaffs_skip_verification(dev)) { ++ if (tags.chunk_id == 0) ++ matching_chunk = ++ object->hdr_chunk; ++ else if (object->soft_del) ++ /* Defeat the test */ ++ matching_chunk = old_chunk; ++ else ++ matching_chunk = ++ yaffs_find_chunk_in_file ++ (object, tags.chunk_id, ++ NULL); ++ ++ if (old_chunk != matching_chunk) ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "gc: page in gc mismatch: %d %d %d %d", ++ old_chunk, ++ matching_chunk, ++ tags.obj_id, ++ tags.chunk_id); ++ } ++ ++ if (!object) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "page %d in gc has no object: %d %d %d ", ++ old_chunk, ++ tags.obj_id, tags.chunk_id, ++ tags.n_bytes); ++ } ++ ++ if (object && ++ object->deleted && ++ object->soft_del && tags.chunk_id != 0) { ++ /* Data chunk in a soft deleted file, ++ * throw it away. ++ * It's a soft deleted data chunk, ++ * No need to copy this, just forget ++ * about it and fix up the object. ++ */ ++ ++ /* Free chunks already includes ++ * softdeleted chunks, how ever this ++ * chunk is going to soon be really ++ * deleted which will increment free ++ * chunks. We have to decrement free ++ * chunks so this works out properly. ++ */ ++ dev->n_free_chunks--; ++ bi->soft_del_pages--; ++ ++ object->n_data_chunks--; ++ if (object->n_data_chunks <= 0) { ++ /* remeber to clean up obj */ ++ dev->gc_cleanup_list[dev->n_clean_ups] = tags.obj_id; ++ dev->n_clean_ups++; ++ } ++ mark_flash = 0; ++ } else if (object) { ++ /* It's either a data chunk in a live ++ * file or an ObjectHeader, so we're ++ * interested in it. ++ * NB Need to keep the ObjectHeaders of ++ * deleted files until the whole file ++ * has been deleted off ++ */ ++ tags.serial_number++; ++ dev->n_gc_copies++; ++ ++ if (tags.chunk_id == 0) { ++ /* It is an object Id, ++ * We need to nuke the ++ * shrinkheader flags since its ++ * work is done. ++ * Also need to clean up ++ * shadowing. ++ */ ++ struct yaffs_obj_hdr *oh; ++ oh = (struct yaffs_obj_hdr *) buffer; ++ ++ oh->is_shrink = 0; ++ tags.extra_is_shrink = 0; ++ oh->shadows_obj = 0; ++ oh->inband_shadowed_obj_id = 0; ++ tags.extra_shadows = 0; ++ ++ /* Update file size */ ++ if (object->variant_type == YAFFS_OBJECT_TYPE_FILE) { ++ yaffs_oh_size_load(oh, ++ object->variant.file_variant.file_size); ++ tags.extra_file_size = ++ object->variant.file_variant.file_size; ++ } ++ ++ yaffs_verify_oh(object, oh, &tags, 1); ++ new_chunk = ++ yaffs_write_new_chunk(dev, (u8 *) oh, &tags, 1); ++ } else { ++ new_chunk = ++ yaffs_write_new_chunk(dev, buffer, &tags, 1); ++ } ++ ++ if (new_chunk < 0) { ++ ret_val = YAFFS_FAIL; ++ } else { ++ ++ /* Now fix up the Tnodes etc. */ ++ ++ if (tags.chunk_id == 0) { ++ /* It's a header */ ++ object->hdr_chunk = new_chunk; ++ object->serial = tags.serial_number; ++ } else { ++ /* It's a data chunk */ ++ yaffs_put_chunk_in_file(object, tags.chunk_id, ++ new_chunk, 0); ++ } ++ } ++ } ++ if (ret_val == YAFFS_OK) ++ yaffs_chunk_del(dev, old_chunk, mark_flash, __LINE__); ++ return ret_val; ++} ++ ++static int yaffs_gc_block(struct yaffs_dev *dev, int block, int whole_block) ++{ ++ int old_chunk; ++ int ret_val = YAFFS_OK; ++ int i; ++ int is_checkpt_block; ++ int max_copies; ++ int chunks_before = yaffs_get_erased_chunks(dev); ++ int chunks_after; ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, block); ++ ++ is_checkpt_block = (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT); ++ ++ yaffs_trace(YAFFS_TRACE_TRACING, ++ "Collecting block %d, in use %d, shrink %d, whole_block %d", ++ block, bi->pages_in_use, bi->has_shrink_hdr, ++ whole_block); ++ ++ /*yaffs_verify_free_chunks(dev); */ ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL) ++ bi->block_state = YAFFS_BLOCK_STATE_COLLECTING; ++ ++ bi->has_shrink_hdr = 0; /* clear the flag so that the block can erase */ ++ ++ dev->gc_disable = 1; ++ ++ yaffs_summary_gc(dev, block); ++ ++ if (is_checkpt_block || !yaffs_still_some_chunks(dev, block)) { ++ yaffs_trace(YAFFS_TRACE_TRACING, ++ "Collecting block %d that has no chunks in use", ++ block); ++ yaffs_block_became_dirty(dev, block); ++ } else { ++ ++ u8 *buffer = yaffs_get_temp_buffer(dev); ++ ++ yaffs_verify_blk(dev, bi, block); ++ ++ max_copies = (whole_block) ? dev->param.chunks_per_block : 5; ++ old_chunk = block * dev->param.chunks_per_block + dev->gc_chunk; ++ ++ for (/* init already done */ ; ++ ret_val == YAFFS_OK && ++ dev->gc_chunk < dev->param.chunks_per_block && ++ (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) && ++ max_copies > 0; ++ dev->gc_chunk++, old_chunk++) { ++ if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) { ++ /* Page is in use and might need to be copied */ ++ max_copies--; ++ ret_val = yaffs_gc_process_chunk(dev, bi, ++ old_chunk, buffer); ++ } ++ } ++ yaffs_release_temp_buffer(dev, buffer); ++ } ++ ++ yaffs_verify_collected_blk(dev, bi, block); ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { ++ /* ++ * The gc did not complete. Set block state back to FULL ++ * because checkpointing does not restore gc. ++ */ ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ } else { ++ /* The gc completed. */ ++ /* Do any required cleanups */ ++ for (i = 0; i < dev->n_clean_ups; i++) { ++ /* Time to delete the file too */ ++ struct yaffs_obj *object = ++ yaffs_find_by_number(dev, dev->gc_cleanup_list[i]); ++ if (object) { ++ yaffs_free_tnode(dev, ++ object->variant.file_variant.top); ++ object->variant.file_variant.top = NULL; ++ yaffs_trace(YAFFS_TRACE_GC, ++ "yaffs: About to finally delete object %d", ++ object->obj_id); ++ yaffs_generic_obj_del(object); ++ object->my_dev->n_deleted_files--; ++ } ++ ++ } ++ chunks_after = yaffs_get_erased_chunks(dev); ++ if (chunks_before >= chunks_after) ++ yaffs_trace(YAFFS_TRACE_GC, ++ "gc did not increase free chunks before %d after %d", ++ chunks_before, chunks_after); ++ dev->gc_block = 0; ++ dev->gc_chunk = 0; ++ dev->n_clean_ups = 0; ++ } ++ ++ dev->gc_disable = 0; ++ ++ return ret_val; ++} ++ ++/* ++ * find_gc_block() selects the dirtiest block (or close enough) ++ * for garbage collection. ++ */ ++ ++static unsigned yaffs_find_gc_block(struct yaffs_dev *dev, ++ int aggressive, int background) ++{ ++ int i; ++ int iterations; ++ unsigned selected = 0; ++ int prioritised = 0; ++ int prioritised_exist = 0; ++ struct yaffs_block_info *bi; ++ int threshold; ++ ++ /* First let's see if we need to grab a prioritised block */ ++ if (dev->has_pending_prioritised_gc && !aggressive) { ++ dev->gc_dirtiest = 0; ++ bi = dev->block_info; ++ for (i = dev->internal_start_block; ++ i <= dev->internal_end_block && !selected; i++) { ++ ++ if (bi->gc_prioritise) { ++ prioritised_exist = 1; ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && ++ yaffs_block_ok_for_gc(dev, bi)) { ++ selected = i; ++ prioritised = 1; ++ } ++ } ++ bi++; ++ } ++ ++ /* ++ * If there is a prioritised block and none was selected then ++ * this happened because there is at least one old dirty block ++ * gumming up the works. Let's gc the oldest dirty block. ++ */ ++ ++ if (prioritised_exist && ++ !selected && dev->oldest_dirty_block > 0) ++ selected = dev->oldest_dirty_block; ++ ++ if (!prioritised_exist) /* None found, so we can clear this */ ++ dev->has_pending_prioritised_gc = 0; ++ } ++ ++ /* If we're doing aggressive GC then we are happy to take a less-dirty ++ * block, and search harder. ++ * else (leasurely gc), then we only bother to do this if the ++ * block has only a few pages in use. ++ */ ++ ++ if (!selected) { ++ int pages_used; ++ int n_blocks = ++ dev->internal_end_block - dev->internal_start_block + 1; ++ if (aggressive) { ++ threshold = dev->param.chunks_per_block; ++ iterations = n_blocks; ++ } else { ++ int max_threshold; ++ ++ if (background) ++ max_threshold = dev->param.chunks_per_block / 2; ++ else ++ max_threshold = dev->param.chunks_per_block / 8; ++ ++ if (max_threshold < YAFFS_GC_PASSIVE_THRESHOLD) ++ max_threshold = YAFFS_GC_PASSIVE_THRESHOLD; ++ ++ threshold = background ? (dev->gc_not_done + 2) * 2 : 0; ++ if (threshold < YAFFS_GC_PASSIVE_THRESHOLD) ++ threshold = YAFFS_GC_PASSIVE_THRESHOLD; ++ if (threshold > max_threshold) ++ threshold = max_threshold; ++ ++ iterations = n_blocks / 16 + 1; ++ if (iterations > 100) ++ iterations = 100; ++ } ++ ++ for (i = 0; ++ i < iterations && ++ (dev->gc_dirtiest < 1 || ++ dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH); ++ i++) { ++ dev->gc_block_finder++; ++ if (dev->gc_block_finder < dev->internal_start_block || ++ dev->gc_block_finder > dev->internal_end_block) ++ dev->gc_block_finder = ++ dev->internal_start_block; ++ ++ bi = yaffs_get_block_info(dev, dev->gc_block_finder); ++ ++ pages_used = bi->pages_in_use - bi->soft_del_pages; ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL && ++ pages_used < dev->param.chunks_per_block && ++ (dev->gc_dirtiest < 1 || ++ pages_used < dev->gc_pages_in_use) && ++ yaffs_block_ok_for_gc(dev, bi)) { ++ dev->gc_dirtiest = dev->gc_block_finder; ++ dev->gc_pages_in_use = pages_used; ++ } ++ } ++ ++ if (dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold) ++ selected = dev->gc_dirtiest; ++ } ++ ++ /* ++ * If nothing has been selected for a while, try the oldest dirty ++ * because that's gumming up the works. ++ */ ++ ++ if (!selected && dev->param.is_yaffs2 && ++ dev->gc_not_done >= (background ? 10 : 20)) { ++ yaffs2_find_oldest_dirty_seq(dev); ++ if (dev->oldest_dirty_block > 0) { ++ selected = dev->oldest_dirty_block; ++ dev->gc_dirtiest = selected; ++ dev->oldest_dirty_gc_count++; ++ bi = yaffs_get_block_info(dev, selected); ++ dev->gc_pages_in_use = ++ bi->pages_in_use - bi->soft_del_pages; ++ } else { ++ dev->gc_not_done = 0; ++ } ++ } ++ ++ if (selected) { ++ yaffs_trace(YAFFS_TRACE_GC, ++ "GC Selected block %d with %d free, prioritised:%d", ++ selected, ++ dev->param.chunks_per_block - dev->gc_pages_in_use, ++ prioritised); ++ ++ dev->n_gc_blocks++; ++ if (background) ++ dev->bg_gcs++; ++ ++ dev->gc_dirtiest = 0; ++ dev->gc_pages_in_use = 0; ++ dev->gc_not_done = 0; ++ if (dev->refresh_skip > 0) ++ dev->refresh_skip--; ++ } else { ++ dev->gc_not_done++; ++ yaffs_trace(YAFFS_TRACE_GC, ++ "GC none: finder %d skip %d threshold %d dirtiest %d using %d oldest %d%s", ++ dev->gc_block_finder, dev->gc_not_done, threshold, ++ dev->gc_dirtiest, dev->gc_pages_in_use, ++ dev->oldest_dirty_block, background ? " bg" : ""); ++ } ++ ++ return selected; ++} ++ ++/* New garbage collector ++ * If we're very low on erased blocks then we do aggressive garbage collection ++ * otherwise we do "leasurely" garbage collection. ++ * Aggressive gc looks further (whole array) and will accept less dirty blocks. ++ * Passive gc only inspects smaller areas and only accepts more dirty blocks. ++ * ++ * The idea is to help clear out space in a more spread-out manner. ++ * Dunno if it really does anything useful. ++ */ ++static int yaffs_check_gc(struct yaffs_dev *dev, int background) ++{ ++ int aggressive = 0; ++ int gc_ok = YAFFS_OK; ++ int max_tries = 0; ++ int min_erased; ++ int erased_chunks; ++ int checkpt_block_adjust; ++ ++ if (dev->param.gc_control_fn && ++ (dev->param.gc_control_fn(dev) & 1) == 0) ++ return YAFFS_OK; ++ ++ if (dev->gc_disable) ++ /* Bail out so we don't get recursive gc */ ++ return YAFFS_OK; ++ ++ /* This loop should pass the first time. ++ * Only loops here if the collection does not increase space. ++ */ ++ ++ do { ++ max_tries++; ++ ++ checkpt_block_adjust = yaffs_calc_checkpt_blocks_required(dev); ++ ++ min_erased = ++ dev->param.n_reserved_blocks + checkpt_block_adjust + 1; ++ erased_chunks = ++ dev->n_erased_blocks * dev->param.chunks_per_block; ++ ++ /* If we need a block soon then do aggressive gc. */ ++ if (dev->n_erased_blocks < min_erased) ++ aggressive = 1; ++ else { ++ if (!background ++ && erased_chunks > (dev->n_free_chunks / 4)) ++ break; ++ ++ if (dev->gc_skip > 20) ++ dev->gc_skip = 20; ++ if (erased_chunks < dev->n_free_chunks / 2 || ++ dev->gc_skip < 1 || background) ++ aggressive = 0; ++ else { ++ dev->gc_skip--; ++ break; ++ } ++ } ++ ++ dev->gc_skip = 5; ++ ++ /* If we don't already have a block being gc'd then see if we ++ * should start another */ ++ ++ if (dev->gc_block < 1 && !aggressive) { ++ dev->gc_block = yaffs2_find_refresh_block(dev); ++ dev->gc_chunk = 0; ++ dev->n_clean_ups = 0; ++ } ++ if (dev->gc_block < 1) { ++ dev->gc_block = ++ yaffs_find_gc_block(dev, aggressive, background); ++ dev->gc_chunk = 0; ++ dev->n_clean_ups = 0; ++ } ++ ++ if (dev->gc_block > 0) { ++ dev->all_gcs++; ++ if (!aggressive) ++ dev->passive_gc_count++; ++ ++ yaffs_trace(YAFFS_TRACE_GC, ++ "yaffs: GC n_erased_blocks %d aggressive %d", ++ dev->n_erased_blocks, aggressive); ++ ++ gc_ok = yaffs_gc_block(dev, dev->gc_block, aggressive); ++ } ++ ++ if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && ++ dev->gc_block > 0) { ++ yaffs_trace(YAFFS_TRACE_GC, ++ "yaffs: GC !!!no reclaim!!! n_erased_blocks %d after try %d block %d", ++ dev->n_erased_blocks, max_tries, ++ dev->gc_block); ++ } ++ } while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) && ++ (dev->gc_block > 0) && (max_tries < 2)); ++ ++ return aggressive ? gc_ok : YAFFS_OK; ++} ++ ++/* ++ * yaffs_bg_gc() ++ * Garbage collects. Intended to be called from a background thread. ++ * Returns non-zero if at least half the free chunks are erased. ++ */ ++int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency) ++{ ++ int erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block; ++ ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, "Background gc %u", urgency); ++ ++ yaffs_check_gc(dev, 1); ++ return erased_chunks > dev->n_free_chunks / 2; ++} ++ ++/*-------------------- Data file manipulation -----------------*/ ++ ++static int yaffs_rd_data_obj(struct yaffs_obj *in, int inode_chunk, u8 * buffer) ++{ ++ int nand_chunk = yaffs_find_chunk_in_file(in, inode_chunk, NULL); ++ ++ if (nand_chunk >= 0) ++ return yaffs_rd_chunk_tags_nand(in->my_dev, nand_chunk, ++ buffer, NULL); ++ else { ++ yaffs_trace(YAFFS_TRACE_NANDACCESS, ++ "Chunk %d not found zero instead", ++ nand_chunk); ++ /* get sane (zero) data if you read a hole */ ++ memset(buffer, 0, in->my_dev->data_bytes_per_chunk); ++ return 0; ++ } ++ ++} ++ ++void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, ++ int lyn) ++{ ++ int block; ++ int page; ++ struct yaffs_ext_tags tags; ++ struct yaffs_block_info *bi; ++ ++ if (chunk_id <= 0) ++ return; ++ ++ dev->n_deletions++; ++ block = chunk_id / dev->param.chunks_per_block; ++ page = chunk_id % dev->param.chunks_per_block; ++ ++ if (!yaffs_check_chunk_bit(dev, block, page)) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Deleting invalid chunk %d", chunk_id); ++ ++ bi = yaffs_get_block_info(dev, block); ++ ++ yaffs2_update_oldest_dirty_seq(dev, block, bi); ++ ++ yaffs_trace(YAFFS_TRACE_DELETION, ++ "line %d delete of chunk %d", ++ lyn, chunk_id); ++ ++ if (!dev->param.is_yaffs2 && mark_flash && ++ bi->block_state != YAFFS_BLOCK_STATE_COLLECTING) { ++ ++ memset(&tags, 0, sizeof(tags)); ++ tags.is_deleted = 1; ++ yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags); ++ yaffs_handle_chunk_update(dev, chunk_id, &tags); ++ } else { ++ dev->n_unmarked_deletions++; ++ } ++ ++ /* Pull out of the management area. ++ * If the whole block became dirty, this will kick off an erasure. ++ */ ++ if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING || ++ bi->block_state == YAFFS_BLOCK_STATE_FULL || ++ bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN || ++ bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) { ++ dev->n_free_chunks++; ++ yaffs_clear_chunk_bit(dev, block, page); ++ bi->pages_in_use--; ++ ++ if (bi->pages_in_use == 0 && ++ !bi->has_shrink_hdr && ++ bi->block_state != YAFFS_BLOCK_STATE_ALLOCATING && ++ bi->block_state != YAFFS_BLOCK_STATE_NEEDS_SCAN) { ++ yaffs_block_became_dirty(dev, block); ++ } ++ } ++} ++ ++static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk, ++ const u8 *buffer, int n_bytes, int use_reserve) ++{ ++ /* Find old chunk Need to do this to get serial number ++ * Write new one and patch into tree. ++ * Invalidate old tags. ++ */ ++ ++ int prev_chunk_id; ++ struct yaffs_ext_tags prev_tags; ++ int new_chunk_id; ++ struct yaffs_ext_tags new_tags; ++ struct yaffs_dev *dev = in->my_dev; ++ ++ yaffs_check_gc(dev, 0); ++ ++ /* Get the previous chunk at this location in the file if it exists. ++ * If it does not exist then put a zero into the tree. This creates ++ * the tnode now, rather than later when it is harder to clean up. ++ */ ++ prev_chunk_id = yaffs_find_chunk_in_file(in, inode_chunk, &prev_tags); ++ if (prev_chunk_id < 1 && ++ !yaffs_put_chunk_in_file(in, inode_chunk, 0, 0)) ++ return 0; ++ ++ /* Set up new tags */ ++ memset(&new_tags, 0, sizeof(new_tags)); ++ ++ new_tags.chunk_id = inode_chunk; ++ new_tags.obj_id = in->obj_id; ++ new_tags.serial_number = ++ (prev_chunk_id > 0) ? prev_tags.serial_number + 1 : 1; ++ new_tags.n_bytes = n_bytes; ++ ++ if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "Writing %d bytes to chunk!!!!!!!!!", ++ n_bytes); ++ BUG(); ++ } ++ ++ new_chunk_id = ++ yaffs_write_new_chunk(dev, buffer, &new_tags, use_reserve); ++ ++ if (new_chunk_id > 0) { ++ yaffs_put_chunk_in_file(in, inode_chunk, new_chunk_id, 0); ++ ++ if (prev_chunk_id > 0) ++ yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); ++ ++ yaffs_verify_file_sane(in); ++ } ++ return new_chunk_id; ++ ++} ++ ++ ++ ++static int yaffs_do_xattrib_mod(struct yaffs_obj *obj, int set, ++ const YCHAR *name, const void *value, int size, ++ int flags) ++{ ++ struct yaffs_xattr_mod xmod; ++ int result; ++ ++ xmod.set = set; ++ xmod.name = name; ++ xmod.data = value; ++ xmod.size = size; ++ xmod.flags = flags; ++ xmod.result = -ENOSPC; ++ ++ result = yaffs_update_oh(obj, NULL, 0, 0, 0, &xmod); ++ ++ if (result > 0) ++ return xmod.result; ++ else ++ return -ENOSPC; ++} ++ ++static int yaffs_apply_xattrib_mod(struct yaffs_obj *obj, char *buffer, ++ struct yaffs_xattr_mod *xmod) ++{ ++ int retval = 0; ++ int x_offs = sizeof(struct yaffs_obj_hdr); ++ struct yaffs_dev *dev = obj->my_dev; ++ int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); ++ char *x_buffer = buffer + x_offs; ++ ++ if (xmod->set) ++ retval = ++ nval_set(x_buffer, x_size, xmod->name, xmod->data, ++ xmod->size, xmod->flags); ++ else ++ retval = nval_del(x_buffer, x_size, xmod->name); ++ ++ obj->has_xattr = nval_hasvalues(x_buffer, x_size); ++ obj->xattr_known = 1; ++ xmod->result = retval; ++ ++ return retval; ++} ++ ++static int yaffs_do_xattrib_fetch(struct yaffs_obj *obj, const YCHAR *name, ++ void *value, int size) ++{ ++ char *buffer = NULL; ++ int result; ++ struct yaffs_ext_tags tags; ++ struct yaffs_dev *dev = obj->my_dev; ++ int x_offs = sizeof(struct yaffs_obj_hdr); ++ int x_size = dev->data_bytes_per_chunk - sizeof(struct yaffs_obj_hdr); ++ char *x_buffer; ++ int retval = 0; ++ ++ if (obj->hdr_chunk < 1) ++ return -ENODATA; ++ ++ /* If we know that the object has no xattribs then don't do all the ++ * reading and parsing. ++ */ ++ if (obj->xattr_known && !obj->has_xattr) { ++ if (name) ++ return -ENODATA; ++ else ++ return 0; ++ } ++ ++ buffer = (char *)yaffs_get_temp_buffer(dev); ++ if (!buffer) ++ return -ENOMEM; ++ ++ result = ++ yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, (u8 *) buffer, &tags); ++ ++ if (result != YAFFS_OK) ++ retval = -ENOENT; ++ else { ++ x_buffer = buffer + x_offs; ++ ++ if (!obj->xattr_known) { ++ obj->has_xattr = nval_hasvalues(x_buffer, x_size); ++ obj->xattr_known = 1; ++ } ++ ++ if (name) ++ retval = nval_get(x_buffer, x_size, name, value, size); ++ else ++ retval = nval_list(x_buffer, x_size, value, size); ++ } ++ yaffs_release_temp_buffer(dev, (u8 *) buffer); ++ return retval; ++} ++ ++int yaffs_set_xattrib(struct yaffs_obj *obj, const YCHAR * name, ++ const void *value, int size, int flags) ++{ ++ return yaffs_do_xattrib_mod(obj, 1, name, value, size, flags); ++} ++ ++int yaffs_remove_xattrib(struct yaffs_obj *obj, const YCHAR * name) ++{ ++ return yaffs_do_xattrib_mod(obj, 0, name, NULL, 0, 0); ++} ++ ++int yaffs_get_xattrib(struct yaffs_obj *obj, const YCHAR * name, void *value, ++ int size) ++{ ++ return yaffs_do_xattrib_fetch(obj, name, value, size); ++} ++ ++int yaffs_list_xattrib(struct yaffs_obj *obj, char *buffer, int size) ++{ ++ return yaffs_do_xattrib_fetch(obj, NULL, buffer, size); ++} ++ ++static void yaffs_check_obj_details_loaded(struct yaffs_obj *in) ++{ ++ u8 *buf; ++ struct yaffs_obj_hdr *oh; ++ struct yaffs_dev *dev; ++ struct yaffs_ext_tags tags; ++ int result; ++ int alloc_failed = 0; ++ ++ if (!in || !in->lazy_loaded || in->hdr_chunk < 1) ++ return; ++ ++ dev = in->my_dev; ++ in->lazy_loaded = 0; ++ buf = yaffs_get_temp_buffer(dev); ++ ++ result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags); ++ oh = (struct yaffs_obj_hdr *)buf; ++ ++ in->yst_mode = oh->yst_mode; ++ yaffs_load_attribs(in, oh); ++ yaffs_set_obj_name_from_oh(in, oh); ++ ++ if (in->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) { ++ in->variant.symlink_variant.alias = ++ yaffs_clone_str(oh->alias); ++ if (!in->variant.symlink_variant.alias) ++ alloc_failed = 1; /* Not returned */ ++ } ++ yaffs_release_temp_buffer(dev, buf); ++} ++ ++static void yaffs_load_name_from_oh(struct yaffs_dev *dev, YCHAR *name, ++ const YCHAR *oh_name, int buff_size) ++{ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ if (dev->param.auto_unicode) { ++ if (*oh_name) { ++ /* It is an ASCII name, do an ASCII to ++ * unicode conversion */ ++ const char *ascii_oh_name = (const char *)oh_name; ++ int n = buff_size - 1; ++ while (n > 0 && *ascii_oh_name) { ++ *name = *ascii_oh_name; ++ name++; ++ ascii_oh_name++; ++ n--; ++ } ++ } else { ++ strncpy(name, oh_name + 1, buff_size - 1); ++ } ++ } else { ++#else ++ (void) dev; ++ { ++#endif ++ strncpy(name, oh_name, buff_size - 1); ++ } ++} ++ ++static void yaffs_load_oh_from_name(struct yaffs_dev *dev, YCHAR *oh_name, ++ const YCHAR *name) ++{ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ ++ int is_ascii; ++ YCHAR *w; ++ ++ if (dev->param.auto_unicode) { ++ ++ is_ascii = 1; ++ w = name; ++ ++ /* Figure out if the name will fit in ascii character set */ ++ while (is_ascii && *w) { ++ if ((*w) & 0xff00) ++ is_ascii = 0; ++ w++; ++ } ++ ++ if (is_ascii) { ++ /* It is an ASCII name, so convert unicode to ascii */ ++ char *ascii_oh_name = (char *)oh_name; ++ int n = YAFFS_MAX_NAME_LENGTH - 1; ++ while (n > 0 && *name) { ++ *ascii_oh_name = *name; ++ name++; ++ ascii_oh_name++; ++ n--; ++ } ++ } else { ++ /* Unicode name, so save starting at the second YCHAR */ ++ *oh_name = 0; ++ strncpy(oh_name + 1, name, YAFFS_MAX_NAME_LENGTH - 2); ++ } ++ } else { ++#else ++ dev = dev; ++ { ++#endif ++ strncpy(oh_name, name, YAFFS_MAX_NAME_LENGTH - 1); ++ } ++} ++ ++/* UpdateObjectHeader updates the header on NAND for an object. ++ * If name is not NULL, then that new name is used. ++ */ ++int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, int force, ++ int is_shrink, int shadows, struct yaffs_xattr_mod *xmod) ++{ ++ ++ struct yaffs_block_info *bi; ++ struct yaffs_dev *dev = in->my_dev; ++ int prev_chunk_id; ++ int ret_val = 0; ++ int result = 0; ++ int new_chunk_id; ++ struct yaffs_ext_tags new_tags; ++ struct yaffs_ext_tags old_tags; ++ const YCHAR *alias = NULL; ++ u8 *buffer = NULL; ++ YCHAR old_name[YAFFS_MAX_NAME_LENGTH + 1]; ++ struct yaffs_obj_hdr *oh = NULL; ++ loff_t file_size = 0; ++ ++ strcpy(old_name, _Y("silly old name")); ++ ++ if (in->fake && in != dev->root_dir && !force && !xmod) ++ return ret_val; ++ ++ yaffs_check_gc(dev, 0); ++ yaffs_check_obj_details_loaded(in); ++ ++ buffer = yaffs_get_temp_buffer(in->my_dev); ++ oh = (struct yaffs_obj_hdr *)buffer; ++ ++ prev_chunk_id = in->hdr_chunk; ++ ++ if (prev_chunk_id > 0) { ++ result = yaffs_rd_chunk_tags_nand(dev, prev_chunk_id, ++ buffer, &old_tags); ++ ++ yaffs_verify_oh(in, oh, &old_tags, 0); ++ memcpy(old_name, oh->name, sizeof(oh->name)); ++ memset(buffer, 0xff, sizeof(struct yaffs_obj_hdr)); ++ } else { ++ memset(buffer, 0xff, dev->data_bytes_per_chunk); ++ } ++ ++ oh->type = in->variant_type; ++ oh->yst_mode = in->yst_mode; ++ oh->shadows_obj = oh->inband_shadowed_obj_id = shadows; ++ ++ yaffs_load_attribs_oh(oh, in); ++ ++ if (in->parent) ++ oh->parent_obj_id = in->parent->obj_id; ++ else ++ oh->parent_obj_id = 0; ++ ++ if (name && *name) { ++ memset(oh->name, 0, sizeof(oh->name)); ++ yaffs_load_oh_from_name(dev, oh->name, name); ++ } else if (prev_chunk_id > 0) { ++ memcpy(oh->name, old_name, sizeof(oh->name)); ++ } else { ++ memset(oh->name, 0, sizeof(oh->name)); ++ } ++ ++ oh->is_shrink = is_shrink; ++ ++ switch (in->variant_type) { ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* Should not happen */ ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (oh->parent_obj_id != YAFFS_OBJECTID_DELETED && ++ oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED) ++ file_size = in->variant.file_variant.file_size; ++ yaffs_oh_size_load(oh, file_size); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ oh->equiv_id = in->variant.hardlink_variant.equiv_id; ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ alias = in->variant.symlink_variant.alias; ++ if (!alias) ++ alias = _Y("no alias"); ++ strncpy(oh->alias, alias, YAFFS_MAX_ALIAS_LENGTH); ++ oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; ++ break; ++ } ++ ++ /* process any xattrib modifications */ ++ if (xmod) ++ yaffs_apply_xattrib_mod(in, (char *)buffer, xmod); ++ ++ /* Tags */ ++ memset(&new_tags, 0, sizeof(new_tags)); ++ in->serial++; ++ new_tags.chunk_id = 0; ++ new_tags.obj_id = in->obj_id; ++ new_tags.serial_number = in->serial; ++ ++ /* Add extra info for file header */ ++ new_tags.extra_available = 1; ++ new_tags.extra_parent_id = oh->parent_obj_id; ++ new_tags.extra_file_size = file_size; ++ new_tags.extra_is_shrink = oh->is_shrink; ++ new_tags.extra_equiv_id = oh->equiv_id; ++ new_tags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0; ++ new_tags.extra_obj_type = in->variant_type; ++ yaffs_verify_oh(in, oh, &new_tags, 1); ++ ++ /* Create new chunk in NAND */ ++ new_chunk_id = ++ yaffs_write_new_chunk(dev, buffer, &new_tags, ++ (prev_chunk_id > 0) ? 1 : 0); ++ ++ if (buffer) ++ yaffs_release_temp_buffer(dev, buffer); ++ ++ if (new_chunk_id < 0) ++ return new_chunk_id; ++ ++ in->hdr_chunk = new_chunk_id; ++ ++ if (prev_chunk_id > 0) ++ yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__); ++ ++ if (!yaffs_obj_cache_dirty(in)) ++ in->dirty = 0; ++ ++ /* If this was a shrink, then mark the block ++ * that the chunk lives on */ ++ if (is_shrink) { ++ bi = yaffs_get_block_info(in->my_dev, ++ new_chunk_id / ++ in->my_dev->param.chunks_per_block); ++ bi->has_shrink_hdr = 1; ++ } ++ ++ ++ return new_chunk_id; ++} ++ ++/*--------------------- File read/write ------------------------ ++ * Read and write have very similar structures. ++ * In general the read/write has three parts to it ++ * An incomplete chunk to start with (if the read/write is not chunk-aligned) ++ * Some complete chunks ++ * An incomplete chunk to end off with ++ * ++ * Curve-balls: the first chunk might also be the last chunk. ++ */ ++ ++int yaffs_file_rd(struct yaffs_obj *in, u8 * buffer, loff_t offset, int n_bytes) ++{ ++ int chunk; ++ u32 start; ++ int n_copy; ++ int n = n_bytes; ++ int n_done = 0; ++ struct yaffs_cache *cache; ++ struct yaffs_dev *dev; ++ ++ dev = in->my_dev; ++ ++ while (n > 0) { ++ yaffs_addr_to_chunk(dev, offset, &chunk, &start); ++ chunk++; ++ ++ /* OK now check for the curveball where the start and end are in ++ * the same chunk. ++ */ ++ if ((start + n) < dev->data_bytes_per_chunk) ++ n_copy = n; ++ else ++ n_copy = dev->data_bytes_per_chunk - start; ++ ++ cache = yaffs_find_chunk_cache(in, chunk); ++ ++ /* If the chunk is already in the cache or it is less than ++ * a whole chunk or we're using inband tags then use the cache ++ * (if there is caching) else bypass the cache. ++ */ ++ if (cache || n_copy != dev->data_bytes_per_chunk || ++ dev->param.inband_tags) { ++ if (dev->param.n_caches > 0) { ++ ++ /* If we can't find the data in the cache, ++ * then load it up. */ ++ ++ if (!cache) { ++ cache = ++ yaffs_grab_chunk_cache(in->my_dev); ++ cache->object = in; ++ cache->chunk_id = chunk; ++ cache->dirty = 0; ++ cache->locked = 0; ++ yaffs_rd_data_obj(in, chunk, ++ cache->data); ++ cache->n_bytes = 0; ++ } ++ ++ yaffs_use_cache(dev, cache, 0); ++ ++ cache->locked = 1; ++ ++ memcpy(buffer, &cache->data[start], n_copy); ++ ++ cache->locked = 0; ++ } else { ++ /* Read into the local buffer then copy.. */ ++ ++ u8 *local_buffer = ++ yaffs_get_temp_buffer(dev); ++ yaffs_rd_data_obj(in, chunk, local_buffer); ++ ++ memcpy(buffer, &local_buffer[start], n_copy); ++ ++ yaffs_release_temp_buffer(dev, local_buffer); ++ } ++ } else { ++ /* A full chunk. Read directly into the buffer. */ ++ yaffs_rd_data_obj(in, chunk, buffer); ++ } ++ n -= n_copy; ++ offset += n_copy; ++ buffer += n_copy; ++ n_done += n_copy; ++ } ++ return n_done; ++} ++ ++int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset, ++ int n_bytes, int write_through) ++{ ++ ++ int chunk; ++ u32 start; ++ int n_copy; ++ int n = n_bytes; ++ int n_done = 0; ++ int n_writeback; ++ loff_t start_write = offset; ++ int chunk_written = 0; ++ u32 n_bytes_read; ++ loff_t chunk_start; ++ struct yaffs_dev *dev; ++ ++ dev = in->my_dev; ++ ++ while (n > 0 && chunk_written >= 0) { ++ yaffs_addr_to_chunk(dev, offset, &chunk, &start); ++ ++ if (((loff_t)chunk) * ++ dev->data_bytes_per_chunk + start != offset || ++ start >= dev->data_bytes_per_chunk) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "AddrToChunk of offset %lld gives chunk %d start %d", ++ offset, chunk, start); ++ } ++ chunk++; /* File pos to chunk in file offset */ ++ ++ /* OK now check for the curveball where the start and end are in ++ * the same chunk. ++ */ ++ ++ if ((start + n) < dev->data_bytes_per_chunk) { ++ n_copy = n; ++ ++ /* Now calculate how many bytes to write back.... ++ * If we're overwriting and not writing to then end of ++ * file then we need to write back as much as was there ++ * before. ++ */ ++ ++ chunk_start = (((loff_t)(chunk - 1)) * ++ dev->data_bytes_per_chunk); ++ ++ if (chunk_start > in->variant.file_variant.file_size) ++ n_bytes_read = 0; /* Past end of file */ ++ else ++ n_bytes_read = ++ in->variant.file_variant.file_size - ++ chunk_start; ++ ++ if (n_bytes_read > dev->data_bytes_per_chunk) ++ n_bytes_read = dev->data_bytes_per_chunk; ++ ++ n_writeback = ++ (n_bytes_read > ++ (start + n)) ? n_bytes_read : (start + n); ++ ++ if (n_writeback < 0 || ++ n_writeback > dev->data_bytes_per_chunk) ++ BUG(); ++ ++ } else { ++ n_copy = dev->data_bytes_per_chunk - start; ++ n_writeback = dev->data_bytes_per_chunk; ++ } ++ ++ if (n_copy != dev->data_bytes_per_chunk || ++ !dev->param.cache_bypass_aligned || ++ dev->param.inband_tags) { ++ /* An incomplete start or end chunk (or maybe both ++ * start and end chunk), or we're using inband tags, ++ * or we're forcing writes through the cache, ++ * so we want to use the cache buffers. ++ */ ++ if (dev->param.n_caches > 0) { ++ struct yaffs_cache *cache; ++ ++ /* If we can't find the data in the cache, then ++ * load the cache */ ++ cache = yaffs_find_chunk_cache(in, chunk); ++ ++ if (!cache && ++ yaffs_check_alloc_available(dev, 1)) { ++ cache = yaffs_grab_chunk_cache(dev); ++ cache->object = in; ++ cache->chunk_id = chunk; ++ cache->dirty = 0; ++ cache->locked = 0; ++ yaffs_rd_data_obj(in, chunk, ++ cache->data); ++ } else if (cache && ++ !cache->dirty && ++ !yaffs_check_alloc_available(dev, ++ 1)) { ++ /* Drop the cache if it was a read cache ++ * item and no space check has been made ++ * for it. ++ */ ++ cache = NULL; ++ } ++ ++ if (cache) { ++ yaffs_use_cache(dev, cache, 1); ++ cache->locked = 1; ++ ++ memcpy(&cache->data[start], buffer, ++ n_copy); ++ ++ cache->locked = 0; ++ cache->n_bytes = n_writeback; ++ ++ if (write_through) { ++ chunk_written = ++ yaffs_wr_data_obj ++ (cache->object, ++ cache->chunk_id, ++ cache->data, ++ cache->n_bytes, 1); ++ cache->dirty = 0; ++ } ++ } else { ++ chunk_written = -1; /* fail write */ ++ } ++ } else { ++ /* An incomplete start or end chunk (or maybe ++ * both start and end chunk). Read into the ++ * local buffer then copy over and write back. ++ */ ++ ++ u8 *local_buffer = yaffs_get_temp_buffer(dev); ++ ++ yaffs_rd_data_obj(in, chunk, local_buffer); ++ memcpy(&local_buffer[start], buffer, n_copy); ++ ++ chunk_written = ++ yaffs_wr_data_obj(in, chunk, ++ local_buffer, ++ n_writeback, 0); ++ ++ yaffs_release_temp_buffer(dev, local_buffer); ++ } ++ } else { ++ /* A full chunk. Write directly from the buffer. */ ++ ++ chunk_written = ++ yaffs_wr_data_obj(in, chunk, buffer, ++ dev->data_bytes_per_chunk, 0); ++ ++ /* Since we've overwritten the cached data, ++ * we better invalidate it. */ ++ yaffs_invalidate_chunk_cache(in, chunk); ++ } ++ ++ if (chunk_written >= 0) { ++ n -= n_copy; ++ offset += n_copy; ++ buffer += n_copy; ++ n_done += n_copy; ++ } ++ } ++ ++ /* Update file object */ ++ ++ if ((start_write + n_done) > in->variant.file_variant.file_size) ++ in->variant.file_variant.file_size = (start_write + n_done); ++ ++ in->dirty = 1; ++ return n_done; ++} ++ ++int yaffs_wr_file(struct yaffs_obj *in, const u8 *buffer, loff_t offset, ++ int n_bytes, int write_through) ++{ ++ yaffs2_handle_hole(in, offset); ++ return yaffs_do_file_wr(in, buffer, offset, n_bytes, write_through); ++} ++ ++/* ---------------------- File resizing stuff ------------------ */ ++ ++static void yaffs_prune_chunks(struct yaffs_obj *in, loff_t new_size) ++{ ++ ++ struct yaffs_dev *dev = in->my_dev; ++ loff_t old_size = in->variant.file_variant.file_size; ++ int i; ++ int chunk_id; ++ u32 dummy; ++ int last_del; ++ int start_del; ++ ++ if (old_size > 0) ++ yaffs_addr_to_chunk(dev, old_size - 1, &last_del, &dummy); ++ else ++ last_del = 0; ++ ++ yaffs_addr_to_chunk(dev, new_size + dev->data_bytes_per_chunk - 1, ++ &start_del, &dummy); ++ last_del++; ++ start_del++; ++ ++ /* Delete backwards so that we don't end up with holes if ++ * power is lost part-way through the operation. ++ */ ++ for (i = last_del; i >= start_del; i--) { ++ /* NB this could be optimised somewhat, ++ * eg. could retrieve the tags and write them without ++ * using yaffs_chunk_del ++ */ ++ ++ chunk_id = yaffs_find_del_file_chunk(in, i, NULL); ++ ++ if (chunk_id < 1) ++ continue; ++ ++ if (chunk_id < ++ (dev->internal_start_block * dev->param.chunks_per_block) || ++ chunk_id >= ++ ((dev->internal_end_block + 1) * ++ dev->param.chunks_per_block)) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "Found daft chunk_id %d for %d", ++ chunk_id, i); ++ } else { ++ in->n_data_chunks--; ++ yaffs_chunk_del(dev, chunk_id, 1, __LINE__); ++ } ++ } ++} ++ ++void yaffs_resize_file_down(struct yaffs_obj *obj, loff_t new_size) ++{ ++ int new_full; ++ u32 new_partial; ++ struct yaffs_dev *dev = obj->my_dev; ++ ++ yaffs_addr_to_chunk(dev, new_size, &new_full, &new_partial); ++ ++ yaffs_prune_chunks(obj, new_size); ++ ++ if (new_partial != 0) { ++ int last_chunk = 1 + new_full; ++ u8 *local_buffer = yaffs_get_temp_buffer(dev); ++ ++ /* Rewrite the last chunk with its new size and zero pad */ ++ yaffs_rd_data_obj(obj, last_chunk, local_buffer); ++ memset(local_buffer + new_partial, 0, ++ dev->data_bytes_per_chunk - new_partial); ++ ++ yaffs_wr_data_obj(obj, last_chunk, local_buffer, ++ new_partial, 1); ++ ++ yaffs_release_temp_buffer(dev, local_buffer); ++ } ++ ++ obj->variant.file_variant.file_size = new_size; ++ ++ yaffs_prune_tree(dev, &obj->variant.file_variant); ++} ++ ++int yaffs_resize_file(struct yaffs_obj *in, loff_t new_size) ++{ ++ struct yaffs_dev *dev = in->my_dev; ++ loff_t old_size = in->variant.file_variant.file_size; ++ ++ yaffs_flush_file_cache(in); ++ yaffs_invalidate_whole_cache(in); ++ ++ yaffs_check_gc(dev, 0); ++ ++ if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) ++ return YAFFS_FAIL; ++ ++ if (new_size == old_size) ++ return YAFFS_OK; ++ ++ if (new_size > old_size) { ++ yaffs2_handle_hole(in, new_size); ++ in->variant.file_variant.file_size = new_size; ++ } else { ++ /* new_size < old_size */ ++ yaffs_resize_file_down(in, new_size); ++ } ++ ++ /* Write a new object header to reflect the resize. ++ * show we've shrunk the file, if need be ++ * Do this only if the file is not in the deleted directories ++ * and is not shadowed. ++ */ ++ if (in->parent && ++ !in->is_shadowed && ++ in->parent->obj_id != YAFFS_OBJECTID_UNLINKED && ++ in->parent->obj_id != YAFFS_OBJECTID_DELETED) ++ yaffs_update_oh(in, NULL, 0, 0, 0, NULL); ++ ++ return YAFFS_OK; ++} ++ ++int yaffs_flush_file(struct yaffs_obj *in, int update_time, int data_sync) ++{ ++ if (!in->dirty) ++ return YAFFS_OK; ++ ++ yaffs_flush_file_cache(in); ++ ++ if (data_sync) ++ return YAFFS_OK; ++ ++ if (update_time) ++ yaffs_load_current_time(in, 0, 0); ++ ++ return (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >= 0) ? ++ YAFFS_OK : YAFFS_FAIL; ++} ++ ++ ++/* yaffs_del_file deletes the whole file data ++ * and the inode associated with the file. ++ * It does not delete the links associated with the file. ++ */ ++static int yaffs_unlink_file_if_needed(struct yaffs_obj *in) ++{ ++ int ret_val; ++ int del_now = 0; ++ struct yaffs_dev *dev = in->my_dev; ++ ++ if (!in->my_inode) ++ del_now = 1; ++ ++ if (del_now) { ++ ret_val = ++ yaffs_change_obj_name(in, in->my_dev->del_dir, ++ _Y("deleted"), 0, 0); ++ yaffs_trace(YAFFS_TRACE_TRACING, ++ "yaffs: immediate deletion of file %d", ++ in->obj_id); ++ in->deleted = 1; ++ in->my_dev->n_deleted_files++; ++ if (dev->param.disable_soft_del || dev->param.is_yaffs2) ++ yaffs_resize_file(in, 0); ++ yaffs_soft_del_file(in); ++ } else { ++ ret_val = ++ yaffs_change_obj_name(in, in->my_dev->unlinked_dir, ++ _Y("unlinked"), 0, 0); ++ } ++ return ret_val; ++} ++ ++static int yaffs_del_file(struct yaffs_obj *in) ++{ ++ int ret_val = YAFFS_OK; ++ int deleted; /* Need to cache value on stack if in is freed */ ++ struct yaffs_dev *dev = in->my_dev; ++ ++ if (dev->param.disable_soft_del || dev->param.is_yaffs2) ++ yaffs_resize_file(in, 0); ++ ++ if (in->n_data_chunks > 0) { ++ /* Use soft deletion if there is data in the file. ++ * That won't be the case if it has been resized to zero. ++ */ ++ if (!in->unlinked) ++ ret_val = yaffs_unlink_file_if_needed(in); ++ ++ deleted = in->deleted; ++ ++ if (ret_val == YAFFS_OK && in->unlinked && !in->deleted) { ++ in->deleted = 1; ++ deleted = 1; ++ in->my_dev->n_deleted_files++; ++ yaffs_soft_del_file(in); ++ } ++ return deleted ? YAFFS_OK : YAFFS_FAIL; ++ } else { ++ /* The file has no data chunks so we toss it immediately */ ++ yaffs_free_tnode(in->my_dev, in->variant.file_variant.top); ++ in->variant.file_variant.top = NULL; ++ yaffs_generic_obj_del(in); ++ ++ return YAFFS_OK; ++ } ++} ++ ++int yaffs_is_non_empty_dir(struct yaffs_obj *obj) ++{ ++ return (obj && ++ obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) && ++ !(list_empty(&obj->variant.dir_variant.children)); ++} ++ ++static int yaffs_del_dir(struct yaffs_obj *obj) ++{ ++ /* First check that the directory is empty. */ ++ if (yaffs_is_non_empty_dir(obj)) ++ return YAFFS_FAIL; ++ ++ return yaffs_generic_obj_del(obj); ++} ++ ++static int yaffs_del_symlink(struct yaffs_obj *in) ++{ ++ kfree(in->variant.symlink_variant.alias); ++ in->variant.symlink_variant.alias = NULL; ++ ++ return yaffs_generic_obj_del(in); ++} ++ ++static int yaffs_del_link(struct yaffs_obj *in) ++{ ++ /* remove this hardlink from the list associated with the equivalent ++ * object ++ */ ++ list_del_init(&in->hard_links); ++ return yaffs_generic_obj_del(in); ++} ++ ++int yaffs_del_obj(struct yaffs_obj *obj) ++{ ++ int ret_val = -1; ++ ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ ret_val = yaffs_del_file(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ if (!list_empty(&obj->variant.dir_variant.dirty)) { ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, ++ "Remove object %d from dirty directories", ++ obj->obj_id); ++ list_del_init(&obj->variant.dir_variant.dirty); ++ } ++ return yaffs_del_dir(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ ret_val = yaffs_del_symlink(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ ret_val = yaffs_del_link(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ ret_val = yaffs_generic_obj_del(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ ret_val = 0; ++ break; /* should not happen. */ ++ } ++ return ret_val; ++} ++ ++ ++static void yaffs_empty_dir_to_dir(struct yaffs_obj *from_dir, ++ struct yaffs_obj *to_dir) ++{ ++ struct yaffs_obj *obj; ++ struct list_head *lh; ++ struct list_head *n; ++ ++ list_for_each_safe(lh, n, &from_dir->variant.dir_variant.children) { ++ obj = list_entry(lh, struct yaffs_obj, siblings); ++ yaffs_add_obj_to_dir(to_dir, obj); ++ } ++} ++ ++struct yaffs_obj *yaffs_retype_obj(struct yaffs_obj *obj, ++ enum yaffs_obj_type type) ++{ ++ /* Tear down the old variant */ ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ /* Nuke file data */ ++ yaffs_resize_file(obj, 0); ++ yaffs_free_tnode(obj->my_dev, obj->variant.file_variant.top); ++ obj->variant.file_variant.top = NULL; ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Put the children in lost and found. */ ++ yaffs_empty_dir_to_dir(obj, obj->my_dev->lost_n_found); ++ if (!list_empty(&obj->variant.dir_variant.dirty)) ++ list_del_init(&obj->variant.dir_variant.dirty); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ /* Nuke symplink data */ ++ kfree(obj->variant.symlink_variant.alias); ++ obj->variant.symlink_variant.alias = NULL; ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ list_del_init(&obj->hard_links); ++ break; ++ default: ++ break; ++ } ++ ++ memset(&obj->variant, 0, sizeof(obj->variant)); ++ ++ /*Set up new variant if the memset is not enough. */ ++ switch (type) { ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ INIT_LIST_HEAD(&obj->variant.dir_variant.children); ++ INIT_LIST_HEAD(&obj->variant.dir_variant.dirty); ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ default: ++ break; ++ } ++ ++ obj->variant_type = type; ++ ++ return obj; ++ ++} ++ ++static int yaffs_unlink_worker(struct yaffs_obj *obj) ++{ ++ int del_now = 0; ++ ++ if (!obj) ++ return YAFFS_FAIL; ++ ++ if (!obj->my_inode) ++ del_now = 1; ++ ++ yaffs_update_parent(obj->parent); ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { ++ return yaffs_del_link(obj); ++ } else if (!list_empty(&obj->hard_links)) { ++ /* Curve ball: We're unlinking an object that has a hardlink. ++ * ++ * This problem arises because we are not strictly following ++ * The Linux link/inode model. ++ * ++ * We can't really delete the object. ++ * Instead, we do the following: ++ * - Select a hardlink. ++ * - Unhook it from the hard links ++ * - Move it from its parent directory so that the rename works. ++ * - Rename the object to the hardlink's name. ++ * - Delete the hardlink ++ */ ++ ++ struct yaffs_obj *hl; ++ struct yaffs_obj *parent; ++ int ret_val; ++ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; ++ ++ hl = list_entry(obj->hard_links.next, struct yaffs_obj, ++ hard_links); ++ ++ yaffs_get_obj_name(hl, name, YAFFS_MAX_NAME_LENGTH + 1); ++ parent = hl->parent; ++ ++ list_del_init(&hl->hard_links); ++ ++ yaffs_add_obj_to_dir(obj->my_dev->unlinked_dir, hl); ++ ++ ret_val = yaffs_change_obj_name(obj, parent, name, 0, 0); ++ ++ if (ret_val == YAFFS_OK) ++ ret_val = yaffs_generic_obj_del(hl); ++ ++ return ret_val; ++ ++ } else if (del_now) { ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ return yaffs_del_file(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ list_del_init(&obj->variant.dir_variant.dirty); ++ return yaffs_del_dir(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ return yaffs_del_symlink(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ return yaffs_generic_obj_del(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ default: ++ return YAFFS_FAIL; ++ } ++ } else if (yaffs_is_non_empty_dir(obj)) { ++ return YAFFS_FAIL; ++ } else { ++ return yaffs_change_obj_name(obj, obj->my_dev->unlinked_dir, ++ _Y("unlinked"), 0, 0); ++ } ++} ++ ++static int yaffs_unlink_obj(struct yaffs_obj *obj) ++{ ++ if (obj && obj->unlink_allowed) ++ return yaffs_unlink_worker(obj); ++ ++ return YAFFS_FAIL; ++} ++ ++int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR *name) ++{ ++ struct yaffs_obj *obj; ++ ++ obj = yaffs_find_by_name(dir, name); ++ return yaffs_unlink_obj(obj); ++} ++ ++/* Note: ++ * If old_name is NULL then we take old_dir as the object to be renamed. ++ */ ++int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR *old_name, ++ struct yaffs_obj *new_dir, const YCHAR *new_name) ++{ ++ struct yaffs_obj *obj = NULL; ++ struct yaffs_obj *existing_target = NULL; ++ int force = 0; ++ int result; ++ struct yaffs_dev *dev; ++ ++ if (!old_dir || old_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ BUG(); ++ return YAFFS_FAIL; ++ } ++ if (!new_dir || new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ BUG(); ++ return YAFFS_FAIL; ++ } ++ ++ dev = old_dir->my_dev; ++ ++#ifdef CONFIG_YAFFS_CASE_INSENSITIVE ++ /* Special case for case insemsitive systems. ++ * While look-up is case insensitive, the name isn't. ++ * Therefore we might want to change x.txt to X.txt ++ */ ++ if (old_dir == new_dir && ++ old_name && new_name && ++ strcmp(old_name, new_name) == 0) ++ force = 1; ++#endif ++ ++ if (strnlen(new_name, YAFFS_MAX_NAME_LENGTH + 1) > ++ YAFFS_MAX_NAME_LENGTH) ++ /* ENAMETOOLONG */ ++ return YAFFS_FAIL; ++ ++ if (old_name) ++ obj = yaffs_find_by_name(old_dir, old_name); ++ else{ ++ obj = old_dir; ++ old_dir = obj->parent; ++ } ++ ++ if (obj && obj->rename_allowed) { ++ /* Now handle an existing target, if there is one */ ++ existing_target = yaffs_find_by_name(new_dir, new_name); ++ if (yaffs_is_non_empty_dir(existing_target)) { ++ return YAFFS_FAIL; /* ENOTEMPTY */ ++ } else if (existing_target && existing_target != obj) { ++ /* Nuke the target first, using shadowing, ++ * but only if it isn't the same object. ++ * ++ * Note we must disable gc here otherwise it can mess ++ * up the shadowing. ++ * ++ */ ++ dev->gc_disable = 1; ++ yaffs_change_obj_name(obj, new_dir, new_name, force, ++ existing_target->obj_id); ++ existing_target->is_shadowed = 1; ++ yaffs_unlink_obj(existing_target); ++ dev->gc_disable = 0; ++ } ++ ++ result = yaffs_change_obj_name(obj, new_dir, new_name, 1, 0); ++ ++ yaffs_update_parent(old_dir); ++ if (new_dir != old_dir) ++ yaffs_update_parent(new_dir); ++ ++ return result; ++ } ++ return YAFFS_FAIL; ++} ++ ++/*----------------------- Initialisation Scanning ---------------------- */ ++ ++void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, ++ int backward_scanning) ++{ ++ struct yaffs_obj *obj; ++ ++ if (backward_scanning) { ++ /* Handle YAFFS2 case (backward scanning) ++ * If the shadowed object exists then ignore. ++ */ ++ obj = yaffs_find_by_number(dev, obj_id); ++ if (obj) ++ return; ++ } ++ ++ /* Let's create it (if it does not exist) assuming it is a file so that ++ * it can do shrinking etc. ++ * We put it in unlinked dir to be cleaned up after the scanning ++ */ ++ obj = ++ yaffs_find_or_create_by_number(dev, obj_id, YAFFS_OBJECT_TYPE_FILE); ++ if (!obj) ++ return; ++ obj->is_shadowed = 1; ++ yaffs_add_obj_to_dir(dev->unlinked_dir, obj); ++ obj->variant.file_variant.shrink_size = 0; ++ obj->valid = 1; /* So that we don't read any other info. */ ++} ++ ++void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list) ++{ ++ struct list_head *lh; ++ struct list_head *save; ++ struct yaffs_obj *hl; ++ struct yaffs_obj *in; ++ ++ list_for_each_safe(lh, save, hard_list) { ++ hl = list_entry(lh, struct yaffs_obj, hard_links); ++ in = yaffs_find_by_number(dev, ++ hl->variant.hardlink_variant.equiv_id); ++ ++ if (in) { ++ /* Add the hardlink pointers */ ++ hl->variant.hardlink_variant.equiv_obj = in; ++ list_add(&hl->hard_links, &in->hard_links); ++ } else { ++ /* Todo Need to report/handle this better. ++ * Got a problem... hardlink to a non-existant object ++ */ ++ hl->variant.hardlink_variant.equiv_obj = NULL; ++ INIT_LIST_HEAD(&hl->hard_links); ++ } ++ } ++} ++ ++static void yaffs_strip_deleted_objs(struct yaffs_dev *dev) ++{ ++ /* ++ * Sort out state of unlinked and deleted objects after scanning. ++ */ ++ struct list_head *i; ++ struct list_head *n; ++ struct yaffs_obj *l; ++ ++ if (dev->read_only) ++ return; ++ ++ /* Soft delete all the unlinked files */ ++ list_for_each_safe(i, n, ++ &dev->unlinked_dir->variant.dir_variant.children) { ++ l = list_entry(i, struct yaffs_obj, siblings); ++ yaffs_del_obj(l); ++ } ++ ++ list_for_each_safe(i, n, &dev->del_dir->variant.dir_variant.children) { ++ l = list_entry(i, struct yaffs_obj, siblings); ++ yaffs_del_obj(l); ++ } ++} ++ ++/* ++ * This code iterates through all the objects making sure that they are rooted. ++ * Any unrooted objects are re-rooted in lost+found. ++ * An object needs to be in one of: ++ * - Directly under deleted, unlinked ++ * - Directly or indirectly under root. ++ * ++ * Note: ++ * This code assumes that we don't ever change the current relationships ++ * between directories: ++ * root_dir->parent == unlinked_dir->parent == del_dir->parent == NULL ++ * lost-n-found->parent == root_dir ++ * ++ * This fixes the problem where directories might have inadvertently been ++ * deleted leaving the object "hanging" without being rooted in the ++ * directory tree. ++ */ ++ ++static int yaffs_has_null_parent(struct yaffs_dev *dev, struct yaffs_obj *obj) ++{ ++ return (obj == dev->del_dir || ++ obj == dev->unlinked_dir || obj == dev->root_dir); ++} ++ ++static void yaffs_fix_hanging_objs(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_obj *parent; ++ int i; ++ struct list_head *lh; ++ struct list_head *n; ++ int depth_limit; ++ int hanging; ++ ++ if (dev->read_only) ++ return; ++ ++ /* Iterate through the objects in each hash entry, ++ * looking at each object. ++ * Make sure it is rooted. ++ */ ++ ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ list_for_each_safe(lh, n, &dev->obj_bucket[i].list) { ++ obj = list_entry(lh, struct yaffs_obj, hash_link); ++ parent = obj->parent; ++ ++ if (yaffs_has_null_parent(dev, obj)) { ++ /* These directories are not hanging */ ++ hanging = 0; ++ } else if (!parent || ++ parent->variant_type != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { ++ hanging = 1; ++ } else if (yaffs_has_null_parent(dev, parent)) { ++ hanging = 0; ++ } else { ++ /* ++ * Need to follow the parent chain to ++ * see if it is hanging. ++ */ ++ hanging = 0; ++ depth_limit = 100; ++ ++ while (parent != dev->root_dir && ++ parent->parent && ++ parent->parent->variant_type == ++ YAFFS_OBJECT_TYPE_DIRECTORY && ++ depth_limit > 0) { ++ parent = parent->parent; ++ depth_limit--; ++ } ++ if (parent != dev->root_dir) ++ hanging = 1; ++ } ++ if (hanging) { ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "Hanging object %d moved to lost and found", ++ obj->obj_id); ++ yaffs_add_obj_to_dir(dev->lost_n_found, obj); ++ } ++ } ++ } ++} ++ ++/* ++ * Delete directory contents for cleaning up lost and found. ++ */ ++static void yaffs_del_dir_contents(struct yaffs_obj *dir) ++{ ++ struct yaffs_obj *obj; ++ struct list_head *lh; ++ struct list_head *n; ++ ++ if (dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) ++ BUG(); ++ ++ list_for_each_safe(lh, n, &dir->variant.dir_variant.children) { ++ obj = list_entry(lh, struct yaffs_obj, siblings); ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) ++ yaffs_del_dir_contents(obj); ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "Deleting lost_found object %d", ++ obj->obj_id); ++ yaffs_unlink_obj(obj); ++ } ++} ++ ++static void yaffs_empty_l_n_f(struct yaffs_dev *dev) ++{ ++ yaffs_del_dir_contents(dev->lost_n_found); ++} ++ ++ ++struct yaffs_obj *yaffs_find_by_name(struct yaffs_obj *directory, ++ const YCHAR *name) ++{ ++ int sum; ++ struct list_head *i; ++ YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; ++ struct yaffs_obj *l; ++ ++ if (!name) ++ return NULL; ++ ++ if (!directory) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "tragedy: yaffs_find_by_name: null pointer directory" ++ ); ++ BUG(); ++ return NULL; ++ } ++ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "tragedy: yaffs_find_by_name: non-directory" ++ ); ++ BUG(); ++ } ++ ++ sum = yaffs_calc_name_sum(name); ++ ++ list_for_each(i, &directory->variant.dir_variant.children) { ++ l = list_entry(i, struct yaffs_obj, siblings); ++ ++ if (l->parent != directory) ++ BUG(); ++ ++ yaffs_check_obj_details_loaded(l); ++ ++ /* Special case for lost-n-found */ ++ if (l->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { ++ if (!strcmp(name, YAFFS_LOSTNFOUND_NAME)) ++ return l; ++ } else if (l->sum == sum || l->hdr_chunk <= 0) { ++ /* LostnFound chunk called Objxxx ++ * Do a real check ++ */ ++ yaffs_get_obj_name(l, buffer, ++ YAFFS_MAX_NAME_LENGTH + 1); ++ if (!strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH)) ++ return l; ++ } ++ } ++ return NULL; ++} ++ ++/* GetEquivalentObject dereferences any hard links to get to the ++ * actual object. ++ */ ++ ++struct yaffs_obj *yaffs_get_equivalent_obj(struct yaffs_obj *obj) ++{ ++ if (obj && obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) { ++ obj = obj->variant.hardlink_variant.equiv_obj; ++ yaffs_check_obj_details_loaded(obj); ++ } ++ return obj; ++} ++ ++/* ++ * A note or two on object names. ++ * * If the object name is missing, we then make one up in the form objnnn ++ * ++ * * ASCII names are stored in the object header's name field from byte zero ++ * * Unicode names are historically stored starting from byte zero. ++ * ++ * Then there are automatic Unicode names... ++ * The purpose of these is to save names in a way that can be read as ++ * ASCII or Unicode names as appropriate, thus allowing a Unicode and ASCII ++ * system to share files. ++ * ++ * These automatic unicode are stored slightly differently... ++ * - If the name can fit in the ASCII character space then they are saved as ++ * ascii names as per above. ++ * - If the name needs Unicode then the name is saved in Unicode ++ * starting at oh->name[1]. ++ ++ */ ++static void yaffs_fix_null_name(struct yaffs_obj *obj, YCHAR *name, ++ int buffer_size) ++{ ++ /* Create an object name if we could not find one. */ ++ if (strnlen(name, YAFFS_MAX_NAME_LENGTH) == 0) { ++ YCHAR local_name[20]; ++ YCHAR num_string[20]; ++ YCHAR *x = &num_string[19]; ++ unsigned v = obj->obj_id; ++ num_string[19] = 0; ++ while (v > 0) { ++ x--; ++ *x = '0' + (v % 10); ++ v /= 10; ++ } ++ /* make up a name */ ++ strcpy(local_name, YAFFS_LOSTNFOUND_PREFIX); ++ strcat(local_name, x); ++ strncpy(name, local_name, buffer_size - 1); ++ } ++} ++ ++int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR *name, int buffer_size) ++{ ++ memset(name, 0, buffer_size * sizeof(YCHAR)); ++ yaffs_check_obj_details_loaded(obj); ++ if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) { ++ strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1); ++ } else if (obj->short_name[0]) { ++ strcpy(name, obj->short_name); ++ } else if (obj->hdr_chunk > 0) { ++ int result; ++ u8 *buffer = yaffs_get_temp_buffer(obj->my_dev); ++ ++ struct yaffs_obj_hdr *oh = (struct yaffs_obj_hdr *)buffer; ++ ++ memset(buffer, 0, obj->my_dev->data_bytes_per_chunk); ++ ++ if (obj->hdr_chunk > 0) { ++ result = yaffs_rd_chunk_tags_nand(obj->my_dev, ++ obj->hdr_chunk, ++ buffer, NULL); ++ } ++ yaffs_load_name_from_oh(obj->my_dev, name, oh->name, ++ buffer_size); ++ ++ yaffs_release_temp_buffer(obj->my_dev, buffer); ++ } ++ ++ yaffs_fix_null_name(obj, name, buffer_size); ++ ++ return strnlen(name, YAFFS_MAX_NAME_LENGTH); ++} ++ ++loff_t yaffs_get_obj_length(struct yaffs_obj *obj) ++{ ++ /* Dereference any hard linking */ ++ obj = yaffs_get_equivalent_obj(obj); ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ return obj->variant.file_variant.file_size; ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) { ++ if (!obj->variant.symlink_variant.alias) ++ return 0; ++ return strnlen(obj->variant.symlink_variant.alias, ++ YAFFS_MAX_ALIAS_LENGTH); ++ } else { ++ /* Only a directory should drop through to here */ ++ return obj->my_dev->data_bytes_per_chunk; ++ } ++} ++ ++int yaffs_get_obj_link_count(struct yaffs_obj *obj) ++{ ++ int count = 0; ++ struct list_head *i; ++ ++ if (!obj->unlinked) ++ count++; /* the object itself */ ++ ++ list_for_each(i, &obj->hard_links) ++ count++; /* add the hard links; */ ++ ++ return count; ++} ++ ++int yaffs_get_obj_inode(struct yaffs_obj *obj) ++{ ++ obj = yaffs_get_equivalent_obj(obj); ++ ++ return obj->obj_id; ++} ++ ++unsigned yaffs_get_obj_type(struct yaffs_obj *obj) ++{ ++ obj = yaffs_get_equivalent_obj(obj); ++ ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ return DT_REG; ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ return DT_DIR; ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ return DT_LNK; ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ return DT_REG; ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ if (S_ISFIFO(obj->yst_mode)) ++ return DT_FIFO; ++ if (S_ISCHR(obj->yst_mode)) ++ return DT_CHR; ++ if (S_ISBLK(obj->yst_mode)) ++ return DT_BLK; ++ if (S_ISSOCK(obj->yst_mode)) ++ return DT_SOCK; ++ return DT_REG; ++ break; ++ default: ++ return DT_REG; ++ break; ++ } ++} ++ ++YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj) ++{ ++ obj = yaffs_get_equivalent_obj(obj); ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) ++ return yaffs_clone_str(obj->variant.symlink_variant.alias); ++ else ++ return yaffs_clone_str(_Y("")); ++} ++ ++/*--------------------------- Initialisation code -------------------------- */ ++ ++static int yaffs_check_dev_fns(struct yaffs_dev *dev) ++{ ++ struct yaffs_driver *drv = &dev->drv; ++ struct yaffs_tags_handler *tagger = &dev->tagger; ++ ++ /* Common functions, gotta have */ ++ if (!drv->drv_read_chunk_fn || ++ !drv->drv_write_chunk_fn || ++ !drv->drv_erase_fn) ++ return 0; ++ ++ if (dev->param.is_yaffs2 && ++ (!drv->drv_mark_bad_fn || !drv->drv_check_bad_fn)) ++ return 0; ++ ++ /* Install the default tags marshalling functions if needed. */ ++ yaffs_tags_compat_install(dev); ++ yaffs_tags_marshall_install(dev); ++ ++ /* Check we now have the marshalling functions required. */ ++ if (!tagger->write_chunk_tags_fn || ++ !tagger->read_chunk_tags_fn || ++ !tagger->query_block_fn || ++ !tagger->mark_bad_fn) ++ return 0; ++ ++ return 1; ++} ++ ++static int yaffs_create_initial_dir(struct yaffs_dev *dev) ++{ ++ /* Initialise the unlinked, deleted, root and lost+found directories */ ++ dev->lost_n_found = dev->root_dir = NULL; ++ dev->unlinked_dir = dev->del_dir = NULL; ++ dev->unlinked_dir = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); ++ dev->del_dir = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); ++ dev->root_dir = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT, ++ YAFFS_ROOT_MODE | S_IFDIR); ++ dev->lost_n_found = ++ yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND, ++ YAFFS_LOSTNFOUND_MODE | S_IFDIR); ++ ++ if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir ++ && dev->del_dir) { ++ yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found); ++ return YAFFS_OK; ++ } ++ return YAFFS_FAIL; ++} ++ ++/* Low level init. ++ * Typically only used by yaffs_guts_initialise, but also used by the ++ * Low level yaffs driver tests. ++ */ ++ ++int yaffs_guts_ll_init(struct yaffs_dev *dev) ++{ ++ ++ ++ yaffs_trace(YAFFS_TRACE_TRACING, "yaffs: yaffs_ll_init()"); ++ ++ if (!dev) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: Need a device" ++ ); ++ return YAFFS_FAIL; ++ } ++ ++ if (dev->ll_init) ++ return YAFFS_OK; ++ ++ dev->internal_start_block = dev->param.start_block; ++ dev->internal_end_block = dev->param.end_block; ++ dev->block_offset = 0; ++ dev->chunk_offset = 0; ++ dev->n_free_chunks = 0; ++ ++ dev->gc_block = 0; ++ ++ if (dev->param.start_block == 0) { ++ dev->internal_start_block = dev->param.start_block + 1; ++ dev->internal_end_block = dev->param.end_block + 1; ++ dev->block_offset = 1; ++ dev->chunk_offset = dev->param.chunks_per_block; ++ } ++ ++ /* Check geometry parameters. */ ++ ++ if ((!dev->param.inband_tags && dev->param.is_yaffs2 && ++ dev->param.total_bytes_per_chunk < 1024) || ++ (!dev->param.is_yaffs2 && ++ dev->param.total_bytes_per_chunk < 512) || ++ (dev->param.inband_tags && !dev->param.is_yaffs2) || ++ dev->param.chunks_per_block < 2 || ++ dev->param.n_reserved_blocks < 2 || ++ dev->internal_start_block <= 0 || ++ dev->internal_end_block <= 0 || ++ dev->internal_end_block <= ++ (dev->internal_start_block + dev->param.n_reserved_blocks + 2) ++ ) { ++ /* otherwise it is too small */ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "NAND geometry problems: chunk size %d, type is yaffs%s, inband_tags %d ", ++ dev->param.total_bytes_per_chunk, ++ dev->param.is_yaffs2 ? "2" : "", ++ dev->param.inband_tags); ++ return YAFFS_FAIL; ++ } ++ ++ /* Sort out space for inband tags, if required */ ++ if (dev->param.inband_tags) ++ dev->data_bytes_per_chunk = ++ dev->param.total_bytes_per_chunk - ++ sizeof(struct yaffs_packed_tags2_tags_only); ++ else ++ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk; ++ ++ /* Got the right mix of functions? */ ++ if (!yaffs_check_dev_fns(dev)) { ++ /* Function missing */ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "device function(s) missing or wrong"); ++ ++ return YAFFS_FAIL; ++ } ++ ++ if (yaffs_init_nand(dev) != YAFFS_OK) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "InitialiseNAND failed"); ++ return YAFFS_FAIL; ++ } ++ ++ return YAFFS_OK; ++} ++ ++ ++int yaffs_guts_format_dev(struct yaffs_dev *dev) ++{ ++ int i; ++ enum yaffs_block_state state; ++ u32 dummy; ++ ++ if(yaffs_guts_ll_init(dev) != YAFFS_OK) ++ return YAFFS_FAIL; ++ ++ if(dev->is_mounted) ++ return YAFFS_FAIL; ++ ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ yaffs_query_init_block_state(dev, i, &state, &dummy); ++ if (state != YAFFS_BLOCK_STATE_DEAD) ++ yaffs_erase_block(dev, i); ++ } ++ ++ return YAFFS_OK; ++} ++ ++ ++int yaffs_guts_initialise(struct yaffs_dev *dev) ++{ ++ int init_failed = 0; ++ unsigned x; ++ int bits; ++ ++ if(yaffs_guts_ll_init(dev) != YAFFS_OK) ++ return YAFFS_FAIL; ++ ++ if (dev->is_mounted) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "device already mounted"); ++ return YAFFS_FAIL; ++ } ++ ++ dev->is_mounted = 1; ++ ++ /* OK now calculate a few things for the device */ ++ ++ /* ++ * Calculate all the chunk size manipulation numbers: ++ */ ++ x = dev->data_bytes_per_chunk; ++ /* We always use dev->chunk_shift and dev->chunk_div */ ++ dev->chunk_shift = calc_shifts(x); ++ x >>= dev->chunk_shift; ++ dev->chunk_div = x; ++ /* We only use chunk mask if chunk_div is 1 */ ++ dev->chunk_mask = (1 << dev->chunk_shift) - 1; ++ ++ /* ++ * Calculate chunk_grp_bits. ++ * We need to find the next power of 2 > than internal_end_block ++ */ ++ ++ x = dev->param.chunks_per_block * (dev->internal_end_block + 1); ++ ++ bits = calc_shifts_ceiling(x); ++ ++ /* Set up tnode width if wide tnodes are enabled. */ ++ if (!dev->param.wide_tnodes_disabled) { ++ /* bits must be even so that we end up with 32-bit words */ ++ if (bits & 1) ++ bits++; ++ if (bits < 16) ++ dev->tnode_width = 16; ++ else ++ dev->tnode_width = bits; ++ } else { ++ dev->tnode_width = 16; ++ } ++ ++ dev->tnode_mask = (1 << dev->tnode_width) - 1; ++ ++ /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), ++ * so if the bitwidth of the ++ * chunk range we're using is greater than 16 we need ++ * to figure out chunk shift and chunk_grp_size ++ */ ++ ++ if (bits <= dev->tnode_width) ++ dev->chunk_grp_bits = 0; ++ else ++ dev->chunk_grp_bits = bits - dev->tnode_width; ++ ++ dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0) / 8; ++ if (dev->tnode_size < sizeof(struct yaffs_tnode)) ++ dev->tnode_size = sizeof(struct yaffs_tnode); ++ ++ dev->chunk_grp_size = 1 << dev->chunk_grp_bits; ++ ++ if (dev->param.chunks_per_block < dev->chunk_grp_size) { ++ /* We have a problem because the soft delete won't work if ++ * the chunk group size > chunks per block. ++ * This can be remedied by using larger "virtual blocks". ++ */ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "chunk group too large"); ++ ++ return YAFFS_FAIL; ++ } ++ ++ /* Finished verifying the device, continue with initialisation */ ++ ++ /* More device initialisation */ ++ dev->all_gcs = 0; ++ dev->passive_gc_count = 0; ++ dev->oldest_dirty_gc_count = 0; ++ dev->bg_gcs = 0; ++ dev->gc_block_finder = 0; ++ dev->buffered_block = -1; ++ dev->doing_buffered_block_rewrite = 0; ++ dev->n_deleted_files = 0; ++ dev->n_bg_deletions = 0; ++ dev->n_unlinked_files = 0; ++ dev->n_ecc_fixed = 0; ++ dev->n_ecc_unfixed = 0; ++ dev->n_tags_ecc_fixed = 0; ++ dev->n_tags_ecc_unfixed = 0; ++ dev->n_erase_failures = 0; ++ dev->n_erased_blocks = 0; ++ dev->gc_disable = 0; ++ dev->has_pending_prioritised_gc = 1; ++ /* Assume the worst for now, will get fixed on first GC */ ++ INIT_LIST_HEAD(&dev->dirty_dirs); ++ dev->oldest_dirty_seq = 0; ++ dev->oldest_dirty_block = 0; ++ ++ /* Initialise temporary buffers and caches. */ ++ if (!yaffs_init_tmp_buffers(dev)) ++ init_failed = 1; ++ ++ dev->cache = NULL; ++ dev->gc_cleanup_list = NULL; ++ ++ if (!init_failed && dev->param.n_caches > 0) { ++ int i; ++ void *buf; ++ int cache_bytes = ++ dev->param.n_caches * sizeof(struct yaffs_cache); ++ ++ if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES) ++ dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES; ++ ++ dev->cache = kmalloc(cache_bytes, GFP_NOFS); ++ ++ buf = (u8 *) dev->cache; ++ ++ if (dev->cache) ++ memset(dev->cache, 0, cache_bytes); ++ ++ for (i = 0; i < dev->param.n_caches && buf; i++) { ++ dev->cache[i].object = NULL; ++ dev->cache[i].last_use = 0; ++ dev->cache[i].dirty = 0; ++ dev->cache[i].data = buf = ++ kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); ++ } ++ if (!buf) ++ init_failed = 1; ++ ++ dev->cache_last_use = 0; ++ } ++ ++ dev->cache_hits = 0; ++ ++ if (!init_failed) { ++ dev->gc_cleanup_list = ++ kmalloc(dev->param.chunks_per_block * sizeof(u32), ++ GFP_NOFS); ++ if (!dev->gc_cleanup_list) ++ init_failed = 1; ++ } ++ ++ if (dev->param.is_yaffs2) ++ dev->param.use_header_file_size = 1; ++ ++ if (!init_failed && !yaffs_init_blocks(dev)) ++ init_failed = 1; ++ ++ yaffs_init_tnodes_and_objs(dev); ++ ++ if (!init_failed && !yaffs_create_initial_dir(dev)) ++ init_failed = 1; ++ ++ if (!init_failed && dev->param.is_yaffs2 && ++ !dev->param.disable_summary && ++ !yaffs_summary_init(dev)) ++ init_failed = 1; ++ ++ if (!init_failed) { ++ /* Now scan the flash. */ ++ if (dev->param.is_yaffs2) { ++ if (yaffs2_checkpt_restore(dev)) { ++ yaffs_check_obj_details_loaded(dev->root_dir); ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT | ++ YAFFS_TRACE_MOUNT, ++ "yaffs: restored from checkpoint" ++ ); ++ } else { ++ ++ /* Clean up the mess caused by an aborted ++ * checkpoint load then scan backwards. ++ */ ++ yaffs_deinit_blocks(dev); ++ ++ yaffs_deinit_tnodes_and_objs(dev); ++ ++ dev->n_erased_blocks = 0; ++ dev->n_free_chunks = 0; ++ dev->alloc_block = -1; ++ dev->alloc_page = -1; ++ dev->n_deleted_files = 0; ++ dev->n_unlinked_files = 0; ++ dev->n_bg_deletions = 0; ++ ++ if (!init_failed && !yaffs_init_blocks(dev)) ++ init_failed = 1; ++ ++ yaffs_init_tnodes_and_objs(dev); ++ ++ if (!init_failed ++ && !yaffs_create_initial_dir(dev)) ++ init_failed = 1; ++ ++ if (!init_failed && !yaffs2_scan_backwards(dev)) ++ init_failed = 1; ++ } ++ } else if (!yaffs1_scan(dev)) { ++ init_failed = 1; ++ } ++ ++ yaffs_strip_deleted_objs(dev); ++ yaffs_fix_hanging_objs(dev); ++ if (dev->param.empty_lost_n_found) ++ yaffs_empty_l_n_f(dev); ++ } ++ ++ if (init_failed) { ++ /* Clean up the mess */ ++ yaffs_trace(YAFFS_TRACE_TRACING, ++ "yaffs: yaffs_guts_initialise() aborted."); ++ ++ yaffs_deinitialise(dev); ++ return YAFFS_FAIL; ++ } ++ ++ /* Zero out stats */ ++ dev->n_page_reads = 0; ++ dev->n_page_writes = 0; ++ dev->n_erasures = 0; ++ dev->n_gc_copies = 0; ++ dev->n_retried_writes = 0; ++ ++ dev->n_retired_blocks = 0; ++ ++ yaffs_verify_free_chunks(dev); ++ yaffs_verify_blocks(dev); ++ ++ /* Clean up any aborted checkpoint data */ ++ if (!dev->is_checkpointed && dev->blocks_in_checkpt > 0) ++ yaffs2_checkpt_invalidate(dev); ++ ++ yaffs_trace(YAFFS_TRACE_TRACING, ++ "yaffs: yaffs_guts_initialise() done."); ++ return YAFFS_OK; ++} ++ ++void yaffs_deinitialise(struct yaffs_dev *dev) ++{ ++ if (dev->is_mounted) { ++ int i; ++ ++ yaffs_deinit_blocks(dev); ++ yaffs_deinit_tnodes_and_objs(dev); ++ yaffs_summary_deinit(dev); ++ ++ if (dev->param.n_caches > 0 && dev->cache) { ++ ++ for (i = 0; i < dev->param.n_caches; i++) { ++ kfree(dev->cache[i].data); ++ dev->cache[i].data = NULL; ++ } ++ ++ kfree(dev->cache); ++ dev->cache = NULL; ++ } ++ ++ kfree(dev->gc_cleanup_list); ++ ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) ++ kfree(dev->temp_buffer[i].buffer); ++ ++ dev->is_mounted = 0; ++ ++ yaffs_deinit_nand(dev); ++ } ++} ++ ++int yaffs_count_free_chunks(struct yaffs_dev *dev) ++{ ++ int n_free = 0; ++ int b; ++ struct yaffs_block_info *blk; ++ ++ blk = dev->block_info; ++ for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { ++ switch (blk->block_state) { ++ case YAFFS_BLOCK_STATE_EMPTY: ++ case YAFFS_BLOCK_STATE_ALLOCATING: ++ case YAFFS_BLOCK_STATE_COLLECTING: ++ case YAFFS_BLOCK_STATE_FULL: ++ n_free += ++ (dev->param.chunks_per_block - blk->pages_in_use + ++ blk->soft_del_pages); ++ break; ++ default: ++ break; ++ } ++ blk++; ++ } ++ return n_free; ++} ++ ++int yaffs_get_n_free_chunks(struct yaffs_dev *dev) ++{ ++ /* This is what we report to the outside world */ ++ int n_free; ++ int n_dirty_caches; ++ int blocks_for_checkpt; ++ int i; ++ ++ n_free = dev->n_free_chunks; ++ n_free += dev->n_deleted_files; ++ ++ /* Now count and subtract the number of dirty chunks in the cache. */ ++ ++ for (n_dirty_caches = 0, i = 0; i < dev->param.n_caches; i++) { ++ if (dev->cache[i].dirty) ++ n_dirty_caches++; ++ } ++ ++ n_free -= n_dirty_caches; ++ ++ n_free -= ++ ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block); ++ ++ /* Now figure checkpoint space and report that... */ ++ blocks_for_checkpt = yaffs_calc_checkpt_blocks_required(dev); ++ ++ n_free -= (blocks_for_checkpt * dev->param.chunks_per_block); ++ ++ if (n_free < 0) ++ n_free = 0; ++ ++ return n_free; ++} ++ ++ ++ ++/* ++ * Marshalling functions to get loff_t file sizes into and out of ++ * object headers. ++ */ ++void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize) ++{ ++ oh->file_size_low = (fsize & 0xFFFFFFFF); ++ oh->file_size_high = ((fsize >> 32) & 0xFFFFFFFF); ++} ++ ++loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh) ++{ ++ loff_t retval; ++ ++ if (sizeof(loff_t) >= 8 && ~(oh->file_size_high)) ++ retval = (((loff_t) oh->file_size_high) << 32) | ++ (((loff_t) oh->file_size_low) & 0xFFFFFFFF); ++ else ++ retval = (loff_t) oh->file_size_low; ++ ++ return retval; ++} ++ ++ ++void yaffs_count_blocks_by_state(struct yaffs_dev *dev, int bs[10]) ++{ ++ int i; ++ struct yaffs_block_info *bi; ++ int s; ++ ++ for(i = 0; i < 10; i++) ++ bs[i] = 0; ++ ++ for(i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ bi = yaffs_get_block_info(dev, i); ++ s = bi->block_state; ++ if(s > YAFFS_BLOCK_STATE_DEAD || s < YAFFS_BLOCK_STATE_UNKNOWN) ++ bs[0]++; ++ else ++ bs[s]++; ++ } ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.h linux-3.15-rc5/fs/yaffs2/yaffs_guts.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_guts.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_guts.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,1007 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_GUTS_H__ ++#define __YAFFS_GUTS_H__ ++ ++#include "yportenv.h" ++ ++#define YAFFS_OK 1 ++#define YAFFS_FAIL 0 ++ ++/* Give us a Y=0x59, ++ * Give us an A=0x41, ++ * Give us an FF=0xff ++ * Give us an S=0x53 ++ * And what have we got... ++ */ ++#define YAFFS_MAGIC 0x5941ff53 ++ ++/* ++ * Tnodes form a tree with the tnodes in "levels" ++ * Levels greater than 0 hold 8 slots which point to other tnodes. ++ * Those at level 0 hold 16 slots which point to chunks in NAND. ++ * ++ * A maximum level of 8 thust supports files of size up to: ++ * ++ * 2^(3*MAX_LEVEL+4) ++ * ++ * Thus a max level of 8 supports files with up to 2^^28 chunks which gives ++ * a maximum file size of around 512Gbytees with 2k chunks. ++ */ ++#define YAFFS_NTNODES_LEVEL0 16 ++#define YAFFS_TNODES_LEVEL0_BITS 4 ++#define YAFFS_TNODES_LEVEL0_MASK 0xf ++ ++#define YAFFS_NTNODES_INTERNAL (YAFFS_NTNODES_LEVEL0 / 2) ++#define YAFFS_TNODES_INTERNAL_BITS (YAFFS_TNODES_LEVEL0_BITS - 1) ++#define YAFFS_TNODES_INTERNAL_MASK 0x7 ++#define YAFFS_TNODES_MAX_LEVEL 8 ++#define YAFFS_TNODES_MAX_BITS (YAFFS_TNODES_LEVEL0_BITS + \ ++ YAFFS_TNODES_INTERNAL_BITS * \ ++ YAFFS_TNODES_MAX_LEVEL) ++#define YAFFS_MAX_CHUNK_ID ((1 << YAFFS_TNODES_MAX_BITS) - 1) ++ ++#define YAFFS_MAX_FILE_SIZE_32 0x7fffffff ++ ++/* Constants for YAFFS1 mode */ ++#define YAFFS_BYTES_PER_SPARE 16 ++#define YAFFS_BYTES_PER_CHUNK 512 ++#define YAFFS_CHUNK_SIZE_SHIFT 9 ++#define YAFFS_CHUNKS_PER_BLOCK 32 ++#define YAFFS_BYTES_PER_BLOCK (YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK) ++ ++#define YAFFS_MIN_YAFFS2_CHUNK_SIZE 1024 ++#define YAFFS_MIN_YAFFS2_SPARE_SIZE 32 ++ ++ ++ ++#define YAFFS_ALLOCATION_NOBJECTS 100 ++#define YAFFS_ALLOCATION_NTNODES 100 ++#define YAFFS_ALLOCATION_NLINKS 100 ++ ++#define YAFFS_NOBJECT_BUCKETS 256 ++ ++#define YAFFS_OBJECT_SPACE 0x40000 ++#define YAFFS_MAX_OBJECT_ID (YAFFS_OBJECT_SPACE - 1) ++ ++/* Binary data version stamps */ ++#define YAFFS_SUMMARY_VERSION 1 ++#define YAFFS_CHECKPOINT_VERSION 7 ++ ++#ifdef CONFIG_YAFFS_UNICODE ++#define YAFFS_MAX_NAME_LENGTH 127 ++#define YAFFS_MAX_ALIAS_LENGTH 79 ++#else ++#define YAFFS_MAX_NAME_LENGTH 255 ++#define YAFFS_MAX_ALIAS_LENGTH 159 ++#endif ++ ++#define YAFFS_SHORT_NAME_LENGTH 15 ++ ++/* Some special object ids for pseudo objects */ ++#define YAFFS_OBJECTID_ROOT 1 ++#define YAFFS_OBJECTID_LOSTNFOUND 2 ++#define YAFFS_OBJECTID_UNLINKED 3 ++#define YAFFS_OBJECTID_DELETED 4 ++ ++/* Fake object Id for summary data */ ++#define YAFFS_OBJECTID_SUMMARY 0x10 ++ ++/* Pseudo object ids for checkpointing */ ++#define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 ++#define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 ++ ++#define YAFFS_MAX_SHORT_OP_CACHES 20 ++ ++#define YAFFS_N_TEMP_BUFFERS 6 ++ ++/* We limit the number attempts at sucessfully saving a chunk of data. ++ * Small-page devices have 32 pages per block; large-page devices have 64. ++ * Default to something in the order of 5 to 10 blocks worth of chunks. ++ */ ++#define YAFFS_WR_ATTEMPTS (5*64) ++ ++/* Sequence numbers are used in YAFFS2 to determine block allocation order. ++ * The range is limited slightly to help distinguish bad numbers from good. ++ * This also allows us to perhaps in the future use special numbers for ++ * special purposes. ++ * EFFFFF00 allows the allocation of 8 blocks/second (~1Mbytes) for 15 years, ++ * and is a larger number than the lifetime of a 2GB device. ++ */ ++#define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 ++#define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xefffff00 ++ ++/* Special sequence number for bad block that failed to be marked bad */ ++#define YAFFS_SEQUENCE_BAD_BLOCK 0xffff0000 ++ ++/* ChunkCache is used for short read/write operations.*/ ++struct yaffs_cache { ++ struct yaffs_obj *object; ++ int chunk_id; ++ int last_use; ++ int dirty; ++ int n_bytes; /* Only valid if the cache is dirty */ ++ int locked; /* Can't push out or flush while locked. */ ++ u8 *data; ++}; ++ ++/* yaffs1 tags structures in RAM ++ * NB This uses bitfield. Bitfields should not straddle a u32 boundary ++ * otherwise the structure size will get blown out. ++ */ ++ ++struct yaffs_tags { ++ u32 chunk_id:20; ++ u32 serial_number:2; ++ u32 n_bytes_lsb:10; ++ u32 obj_id:18; ++ u32 ecc:12; ++ u32 n_bytes_msb:2; ++}; ++ ++union yaffs_tags_union { ++ struct yaffs_tags as_tags; ++ u8 as_bytes[8]; ++}; ++ ++ ++/* Stuff used for extended tags in YAFFS2 */ ++ ++enum yaffs_ecc_result { ++ YAFFS_ECC_RESULT_UNKNOWN, ++ YAFFS_ECC_RESULT_NO_ERROR, ++ YAFFS_ECC_RESULT_FIXED, ++ YAFFS_ECC_RESULT_UNFIXED ++}; ++ ++enum yaffs_obj_type { ++ YAFFS_OBJECT_TYPE_UNKNOWN, ++ YAFFS_OBJECT_TYPE_FILE, ++ YAFFS_OBJECT_TYPE_SYMLINK, ++ YAFFS_OBJECT_TYPE_DIRECTORY, ++ YAFFS_OBJECT_TYPE_HARDLINK, ++ YAFFS_OBJECT_TYPE_SPECIAL ++}; ++ ++#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL ++ ++struct yaffs_ext_tags { ++ unsigned chunk_used; /* Status of the chunk: used or unused */ ++ unsigned obj_id; /* If 0 this is not used */ ++ unsigned chunk_id; /* If 0 this is a header, else a data chunk */ ++ unsigned n_bytes; /* Only valid for data chunks */ ++ ++ /* The following stuff only has meaning when we read */ ++ enum yaffs_ecc_result ecc_result; ++ unsigned block_bad; ++ ++ /* YAFFS 1 stuff */ ++ unsigned is_deleted; /* The chunk is marked deleted */ ++ unsigned serial_number; /* Yaffs1 2-bit serial number */ ++ ++ /* YAFFS2 stuff */ ++ unsigned seq_number; /* The sequence number of this block */ ++ ++ /* Extra info if this is an object header (YAFFS2 only) */ ++ ++ unsigned extra_available; /* Extra info available if not zero */ ++ unsigned extra_parent_id; /* The parent object */ ++ unsigned extra_is_shrink; /* Is it a shrink header? */ ++ unsigned extra_shadows; /* Does this shadow another object? */ ++ ++ enum yaffs_obj_type extra_obj_type; /* What object type? */ ++ ++ loff_t extra_file_size; /* Length if it is a file */ ++ unsigned extra_equiv_id; /* Equivalent object for a hard link */ ++}; ++ ++/* Spare structure for YAFFS1 */ ++struct yaffs_spare { ++ u8 tb0; ++ u8 tb1; ++ u8 tb2; ++ u8 tb3; ++ u8 page_status; /* set to 0 to delete the chunk */ ++ u8 block_status; ++ u8 tb4; ++ u8 tb5; ++ u8 ecc1[3]; ++ u8 tb6; ++ u8 tb7; ++ u8 ecc2[3]; ++}; ++ ++/*Special structure for passing through to mtd */ ++struct yaffs_nand_spare { ++ struct yaffs_spare spare; ++ int eccres1; ++ int eccres2; ++}; ++ ++/* Block data in RAM */ ++ ++enum yaffs_block_state { ++ YAFFS_BLOCK_STATE_UNKNOWN = 0, ++ ++ YAFFS_BLOCK_STATE_SCANNING, ++ /* Being scanned */ ++ ++ YAFFS_BLOCK_STATE_NEEDS_SCAN, ++ /* The block might have something on it (ie it is allocating or full, ++ * perhaps empty) but it needs to be scanned to determine its true ++ * state. ++ * This state is only valid during scanning. ++ * NB We tolerate empty because the pre-scanner might be incapable of ++ * deciding ++ * However, if this state is returned on a YAFFS2 device, ++ * then we expect a sequence number ++ */ ++ ++ YAFFS_BLOCK_STATE_EMPTY, ++ /* This block is empty */ ++ ++ YAFFS_BLOCK_STATE_ALLOCATING, ++ /* This block is partially allocated. ++ * At least one page holds valid data. ++ * This is the one currently being used for page ++ * allocation. Should never be more than one of these. ++ * If a block is only partially allocated at mount it is treated as ++ * full. ++ */ ++ ++ YAFFS_BLOCK_STATE_FULL, ++ /* All the pages in this block have been allocated. ++ * If a block was only partially allocated when mounted we treat ++ * it as fully allocated. ++ */ ++ ++ YAFFS_BLOCK_STATE_DIRTY, ++ /* The block was full and now all chunks have been deleted. ++ * Erase me, reuse me. ++ */ ++ ++ YAFFS_BLOCK_STATE_CHECKPOINT, ++ /* This block is assigned to holding checkpoint data. */ ++ ++ YAFFS_BLOCK_STATE_COLLECTING, ++ /* This block is being garbage collected */ ++ ++ YAFFS_BLOCK_STATE_DEAD ++ /* This block has failed and is not in use */ ++}; ++ ++#define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) ++ ++struct yaffs_block_info { ++ ++ s32 soft_del_pages:10; /* number of soft deleted pages */ ++ s32 pages_in_use:10; /* number of pages in use */ ++ u32 block_state:4; /* One of the above block states. */ ++ /* NB use unsigned because enum is sometimes ++ * an int */ ++ u32 needs_retiring:1; /* Data has failed on this block, */ ++ /*need to get valid data off and retire*/ ++ u32 skip_erased_check:1;/* Skip the erased check on this block */ ++ u32 gc_prioritise:1; /* An ECC check or blank check has failed. ++ Block should be prioritised for GC */ ++ u32 chunk_error_strikes:3; /* How many times we've had ecc etc ++ failures on this block and tried to reuse it */ ++ u32 has_summary:1; /* The block has a summary */ ++ ++ u32 has_shrink_hdr:1; /* This block has at least one shrink header */ ++ u32 seq_number; /* block sequence number for yaffs2 */ ++ ++}; ++ ++/* -------------------------- Object structure -------------------------------*/ ++/* This is the object structure as stored on NAND */ ++ ++struct yaffs_obj_hdr { ++ enum yaffs_obj_type type; ++ ++ /* Apply to everything */ ++ int parent_obj_id; ++ u16 sum_no_longer_used; /* checksum of name. No longer used */ ++ YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; ++ ++ /* The following apply to all object types except for hard links */ ++ u32 yst_mode; /* protection */ ++ ++ u32 yst_uid; ++ u32 yst_gid; ++ u32 yst_atime; ++ u32 yst_mtime; ++ u32 yst_ctime; ++ ++ /* File size applies to files only */ ++ u32 file_size_low; ++ ++ /* Equivalent object id applies to hard links only. */ ++ int equiv_id; ++ ++ /* Alias is for symlinks only. */ ++ YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; ++ ++ u32 yst_rdev; /* stuff for block and char devices (major/min) */ ++ ++ u32 win_ctime[2]; ++ u32 win_atime[2]; ++ u32 win_mtime[2]; ++ ++ u32 inband_shadowed_obj_id; ++ u32 inband_is_shrink; ++ ++ u32 file_size_high; ++ u32 reserved[1]; ++ int shadows_obj; /* This object header shadows the ++ specified object if > 0 */ ++ ++ /* is_shrink applies to object headers written when wemake a hole. */ ++ u32 is_shrink; ++ ++}; ++ ++/*--------------------------- Tnode -------------------------- */ ++ ++struct yaffs_tnode { ++ struct yaffs_tnode *internal[YAFFS_NTNODES_INTERNAL]; ++}; ++ ++/*------------------------ Object -----------------------------*/ ++/* An object can be one of: ++ * - a directory (no data, has children links ++ * - a regular file (data.... not prunes :->). ++ * - a symlink [symbolic link] (the alias). ++ * - a hard link ++ */ ++ ++struct yaffs_file_var { ++ loff_t file_size; ++ loff_t scanned_size; ++ loff_t shrink_size; ++ int top_level; ++ struct yaffs_tnode *top; ++}; ++ ++struct yaffs_dir_var { ++ struct list_head children; /* list of child links */ ++ struct list_head dirty; /* Entry for list of dirty directories */ ++}; ++ ++struct yaffs_symlink_var { ++ YCHAR *alias; ++}; ++ ++struct yaffs_hardlink_var { ++ struct yaffs_obj *equiv_obj; ++ u32 equiv_id; ++}; ++ ++union yaffs_obj_var { ++ struct yaffs_file_var file_variant; ++ struct yaffs_dir_var dir_variant; ++ struct yaffs_symlink_var symlink_variant; ++ struct yaffs_hardlink_var hardlink_variant; ++}; ++ ++struct yaffs_obj { ++ u8 deleted:1; /* This should only apply to unlinked files. */ ++ u8 soft_del:1; /* it has also been soft deleted */ ++ u8 unlinked:1; /* An unlinked file.*/ ++ u8 fake:1; /* A fake object has no presence on NAND. */ ++ u8 rename_allowed:1; /* Some objects cannot be renamed. */ ++ u8 unlink_allowed:1; ++ u8 dirty:1; /* the object needs to be written to flash */ ++ u8 valid:1; /* When the file system is being loaded up, this ++ * object might be created before the data ++ * is available ++ * ie. file data chunks encountered before ++ * the header. ++ */ ++ u8 lazy_loaded:1; /* This object has been lazy loaded and ++ * is missing some detail */ ++ ++ u8 defered_free:1; /* Object is removed from NAND, but is ++ * still in the inode cache. ++ * Free of object is defered. ++ * until the inode is released. ++ */ ++ u8 being_created:1; /* This object is still being created ++ * so skip some verification checks. */ ++ u8 is_shadowed:1; /* This object is shadowed on the way ++ * to being renamed. */ ++ ++ u8 xattr_known:1; /* We know if this has object has xattribs ++ * or not. */ ++ u8 has_xattr:1; /* This object has xattribs. ++ * Only valid if xattr_known. */ ++ ++ u8 serial; /* serial number of chunk in NAND.*/ ++ u16 sum; /* sum of the name to speed searching */ ++ ++ struct yaffs_dev *my_dev; /* The device I'm on */ ++ ++ struct list_head hash_link; /* list of objects in hash bucket */ ++ ++ struct list_head hard_links; /* hard linked object chain*/ ++ ++ /* directory structure stuff */ ++ /* also used for linking up the free list */ ++ struct yaffs_obj *parent; ++ struct list_head siblings; ++ ++ /* Where's my object header in NAND? */ ++ int hdr_chunk; ++ ++ int n_data_chunks; /* Number of data chunks for this file. */ ++ ++ u32 obj_id; /* the object id value */ ++ ++ u32 yst_mode; ++ ++ YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1]; ++ ++#ifdef CONFIG_YAFFS_WINCE ++ u32 win_ctime[2]; ++ u32 win_mtime[2]; ++ u32 win_atime[2]; ++#else ++ u32 yst_uid; ++ u32 yst_gid; ++ u32 yst_atime; ++ u32 yst_mtime; ++ u32 yst_ctime; ++#endif ++ ++ u32 yst_rdev; ++ ++ void *my_inode; ++ ++ enum yaffs_obj_type variant_type; ++ ++ union yaffs_obj_var variant; ++ ++}; ++ ++struct yaffs_obj_bucket { ++ struct list_head list; ++ int count; ++}; ++ ++/* yaffs_checkpt_obj holds the definition of an object as dumped ++ * by checkpointing. ++ */ ++ ++struct yaffs_checkpt_obj { ++ int struct_type; ++ u32 obj_id; ++ u32 parent_id; ++ int hdr_chunk; ++ enum yaffs_obj_type variant_type:3; ++ u8 deleted:1; ++ u8 soft_del:1; ++ u8 unlinked:1; ++ u8 fake:1; ++ u8 rename_allowed:1; ++ u8 unlink_allowed:1; ++ u8 serial; ++ int n_data_chunks; ++ loff_t size_or_equiv_obj; ++}; ++ ++/*--------------------- Temporary buffers ---------------- ++ * ++ * These are chunk-sized working buffers. Each device has a few. ++ */ ++ ++struct yaffs_buffer { ++ u8 *buffer; ++ int in_use; ++}; ++ ++/*----------------- Device ---------------------------------*/ ++ ++struct yaffs_param { ++ const YCHAR *name; ++ ++ /* ++ * Entry parameters set up way early. Yaffs sets up the rest. ++ * The structure should be zeroed out before use so that unused ++ * and default values are zero. ++ */ ++ ++ int inband_tags; /* Use unband tags */ ++ u32 total_bytes_per_chunk; /* Should be >= 512, does not need to ++ be a power of 2 */ ++ int chunks_per_block; /* does not need to be a power of 2 */ ++ int spare_bytes_per_chunk; /* spare area size */ ++ int start_block; /* Start block we're allowed to use */ ++ int end_block; /* End block we're allowed to use */ ++ int n_reserved_blocks; /* Tuneable so that we can reduce ++ * reserved blocks on NOR and RAM. */ ++ ++ int n_caches; /* If <= 0, then short op caching is disabled, ++ * else the number of short op caches. ++ */ ++ int cache_bypass_aligned; /* If non-zero then bypass the cache for ++ * aligned writes. ++ */ ++ ++ int use_nand_ecc; /* Flag to decide whether or not to use ++ * NAND driver ECC on data (yaffs1) */ ++ int tags_9bytes; /* Use 9 byte tags */ ++ int no_tags_ecc; /* Flag to decide whether or not to do ECC ++ * on packed tags (yaffs2) */ ++ ++ int is_yaffs2; /* Use yaffs2 mode on this device */ ++ ++ int empty_lost_n_found; /* Auto-empty lost+found directory on mount */ ++ ++ int refresh_period; /* How often to check for a block refresh */ ++ ++ /* Checkpoint control. Can be set before or after initialisation */ ++ u8 skip_checkpt_rd; ++ u8 skip_checkpt_wr; ++ ++ int enable_xattr; /* Enable xattribs */ ++ ++ int max_objects; /* ++ * Set to limit the number of objects created. ++ * 0 = no limit. ++ */ ++ ++ /* The remove_obj_fn function must be supplied by OS flavours that ++ * need it. ++ * yaffs direct uses it to implement the faster readdir. ++ * Linux uses it to protect the directory during unlocking. ++ */ ++ void (*remove_obj_fn) (struct yaffs_obj *obj); ++ ++ /* Callback to mark the superblock dirty */ ++ void (*sb_dirty_fn) (struct yaffs_dev *dev); ++ ++ /* Callback to control garbage collection. */ ++ unsigned (*gc_control_fn) (struct yaffs_dev *dev); ++ ++ /* Debug control flags. Don't use unless you know what you're doing */ ++ int use_header_file_size; /* Flag to determine if we should use ++ * file sizes from the header */ ++ int disable_lazy_load; /* Disable lazy loading on this device */ ++ int wide_tnodes_disabled; /* Set to disable wide tnodes */ ++ int disable_soft_del; /* yaffs 1 only: Set to disable the use of ++ * softdeletion. */ ++ ++ int defered_dir_update; /* Set to defer directory updates */ ++ ++#ifdef CONFIG_YAFFS_AUTO_UNICODE ++ int auto_unicode; ++#endif ++ int always_check_erased; /* Force chunk erased check always on */ ++ ++ int disable_summary; ++ int disable_bad_block_marking; ++ ++}; ++ ++struct yaffs_driver { ++ int (*drv_write_chunk_fn) (struct yaffs_dev *dev, int nand_chunk, ++ const u8 *data, int data_len, ++ const u8 *oob, int oob_len); ++ int (*drv_read_chunk_fn) (struct yaffs_dev *dev, int nand_chunk, ++ u8 *data, int data_len, ++ u8 *oob, int oob_len, ++ enum yaffs_ecc_result *ecc_result); ++ int (*drv_erase_fn) (struct yaffs_dev *dev, int block_no); ++ int (*drv_mark_bad_fn) (struct yaffs_dev *dev, int block_no); ++ int (*drv_check_bad_fn) (struct yaffs_dev *dev, int block_no); ++ int (*drv_initialise_fn) (struct yaffs_dev *dev); ++ int (*drv_deinitialise_fn) (struct yaffs_dev *dev); ++}; ++ ++struct yaffs_tags_handler { ++ int (*write_chunk_tags_fn) (struct yaffs_dev *dev, ++ int nand_chunk, const u8 *data, ++ const struct yaffs_ext_tags *tags); ++ int (*read_chunk_tags_fn) (struct yaffs_dev *dev, ++ int nand_chunk, u8 *data, ++ struct yaffs_ext_tags *tags); ++ ++ int (*query_block_fn) (struct yaffs_dev *dev, int block_no, ++ enum yaffs_block_state *state, ++ u32 *seq_number); ++ int (*mark_bad_fn) (struct yaffs_dev *dev, int block_no); ++}; ++ ++struct yaffs_dev { ++ struct yaffs_param param; ++ struct yaffs_driver drv; ++ struct yaffs_tags_handler tagger; ++ ++ /* Context storage. Holds extra OS specific data for this device */ ++ ++ void *os_context; ++ void *driver_context; ++ ++ struct list_head dev_list; ++ ++ int ll_init; ++ /* Runtime parameters. Set up by YAFFS. */ ++ int data_bytes_per_chunk; ++ ++ /* Non-wide tnode stuff */ ++ u16 chunk_grp_bits; /* Number of bits that need to be resolved if ++ * the tnodes are not wide enough. ++ */ ++ u16 chunk_grp_size; /* == 2^^chunk_grp_bits */ ++ ++ /* Stuff to support wide tnodes */ ++ u32 tnode_width; ++ u32 tnode_mask; ++ u32 tnode_size; ++ ++ /* Stuff for figuring out file offset to chunk conversions */ ++ u32 chunk_shift; /* Shift value */ ++ u32 chunk_div; /* Divisor after shifting: 1 for 2^n sizes */ ++ u32 chunk_mask; /* Mask to use for power-of-2 case */ ++ ++ int is_mounted; ++ int read_only; ++ int is_checkpointed; ++ ++ /* Stuff to support block offsetting to support start block zero */ ++ int internal_start_block; ++ int internal_end_block; ++ int block_offset; ++ int chunk_offset; ++ ++ /* Runtime checkpointing stuff */ ++ int checkpt_page_seq; /* running sequence number of checkpt pages */ ++ int checkpt_byte_count; ++ int checkpt_byte_offs; ++ u8 *checkpt_buffer; ++ int checkpt_open_write; ++ int blocks_in_checkpt; ++ int checkpt_cur_chunk; ++ int checkpt_cur_block; ++ int checkpt_next_block; ++ int *checkpt_block_list; ++ int checkpt_max_blocks; ++ u32 checkpt_sum; ++ u32 checkpt_xor; ++ ++ int checkpoint_blocks_required; /* Number of blocks needed to store ++ * current checkpoint set */ ++ ++ /* Block Info */ ++ struct yaffs_block_info *block_info; ++ u8 *chunk_bits; /* bitmap of chunks in use */ ++ u8 block_info_alt:1; /* allocated using alternative alloc */ ++ u8 chunk_bits_alt:1; /* allocated using alternative alloc */ ++ int chunk_bit_stride; /* Number of bytes of chunk_bits per block. ++ * Must be consistent with chunks_per_block. ++ */ ++ ++ int n_erased_blocks; ++ int alloc_block; /* Current block being allocated off */ ++ u32 alloc_page; ++ int alloc_block_finder; /* Used to search for next allocation block */ ++ ++ /* Object and Tnode memory management */ ++ void *allocator; ++ int n_obj; ++ int n_tnodes; ++ ++ int n_hardlinks; ++ ++ struct yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS]; ++ u32 bucket_finder; ++ ++ int n_free_chunks; ++ ++ /* Garbage collection control */ ++ u32 *gc_cleanup_list; /* objects to delete at the end of a GC. */ ++ u32 n_clean_ups; ++ ++ unsigned has_pending_prioritised_gc; /* We think this device might ++ have pending prioritised gcs */ ++ unsigned gc_disable; ++ unsigned gc_block_finder; ++ unsigned gc_dirtiest; ++ unsigned gc_pages_in_use; ++ unsigned gc_not_done; ++ unsigned gc_block; ++ unsigned gc_chunk; ++ unsigned gc_skip; ++ struct yaffs_summary_tags *gc_sum_tags; ++ ++ /* Special directories */ ++ struct yaffs_obj *root_dir; ++ struct yaffs_obj *lost_n_found; ++ ++ int buffered_block; /* Which block is buffered here? */ ++ int doing_buffered_block_rewrite; ++ ++ struct yaffs_cache *cache; ++ int cache_last_use; ++ ++ /* Stuff for background deletion and unlinked files. */ ++ struct yaffs_obj *unlinked_dir; /* Directory where unlinked and deleted ++ files live. */ ++ struct yaffs_obj *del_dir; /* Directory where deleted objects are ++ sent to disappear. */ ++ struct yaffs_obj *unlinked_deletion; /* Current file being ++ background deleted. */ ++ int n_deleted_files; /* Count of files awaiting deletion; */ ++ int n_unlinked_files; /* Count of unlinked files. */ ++ int n_bg_deletions; /* Count of background deletions. */ ++ ++ /* Temporary buffer management */ ++ struct yaffs_buffer temp_buffer[YAFFS_N_TEMP_BUFFERS]; ++ int max_temp; ++ int temp_in_use; ++ int unmanaged_buffer_allocs; ++ int unmanaged_buffer_deallocs; ++ ++ /* yaffs2 runtime stuff */ ++ unsigned seq_number; /* Sequence number of currently ++ allocating block */ ++ unsigned oldest_dirty_seq; ++ unsigned oldest_dirty_block; ++ ++ /* Block refreshing */ ++ int refresh_skip; /* A skip down counter. ++ * Refresh happens when this gets to zero. */ ++ ++ /* Dirty directory handling */ ++ struct list_head dirty_dirs; /* List of dirty directories */ ++ ++ /* Summary */ ++ int chunks_per_summary; ++ struct yaffs_summary_tags *sum_tags; ++ ++ /* Statistics */ ++ u32 n_page_writes; ++ u32 n_page_reads; ++ u32 n_erasures; ++ u32 n_bad_queries; ++ u32 n_bad_markings; ++ u32 n_erase_failures; ++ u32 n_gc_copies; ++ u32 all_gcs; ++ u32 passive_gc_count; ++ u32 oldest_dirty_gc_count; ++ u32 n_gc_blocks; ++ u32 bg_gcs; ++ u32 n_retried_writes; ++ u32 n_retired_blocks; ++ u32 n_ecc_fixed; ++ u32 n_ecc_unfixed; ++ u32 n_tags_ecc_fixed; ++ u32 n_tags_ecc_unfixed; ++ u32 n_deletions; ++ u32 n_unmarked_deletions; ++ u32 refresh_count; ++ u32 cache_hits; ++ u32 tags_used; ++ u32 summary_used; ++ ++}; ++ ++/* The CheckpointDevice structure holds the device information that changes ++ *at runtime and must be preserved over unmount/mount cycles. ++ */ ++struct yaffs_checkpt_dev { ++ int struct_type; ++ int n_erased_blocks; ++ int alloc_block; /* Current block being allocated off */ ++ u32 alloc_page; ++ int n_free_chunks; ++ ++ int n_deleted_files; /* Count of files awaiting deletion; */ ++ int n_unlinked_files; /* Count of unlinked files. */ ++ int n_bg_deletions; /* Count of background deletions. */ ++ ++ /* yaffs2 runtime stuff */ ++ unsigned seq_number; /* Sequence number of currently ++ * allocating block */ ++ ++}; ++ ++struct yaffs_checkpt_validity { ++ int struct_type; ++ u32 magic; ++ u32 version; ++ u32 head; ++}; ++ ++struct yaffs_shadow_fixer { ++ int obj_id; ++ int shadowed_id; ++ struct yaffs_shadow_fixer *next; ++}; ++ ++/* Structure for doing xattr modifications */ ++struct yaffs_xattr_mod { ++ int set; /* If 0 then this is a deletion */ ++ const YCHAR *name; ++ const void *data; ++ int size; ++ int flags; ++ int result; ++}; ++ ++/*----------------------- YAFFS Functions -----------------------*/ ++ ++int yaffs_guts_initialise(struct yaffs_dev *dev); ++void yaffs_deinitialise(struct yaffs_dev *dev); ++ ++int yaffs_get_n_free_chunks(struct yaffs_dev *dev); ++ ++int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR * old_name, ++ struct yaffs_obj *new_dir, const YCHAR * new_name); ++ ++int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR * name); ++int yaffs_del_obj(struct yaffs_obj *obj); ++struct yaffs_obj *yaffs_retype_obj(struct yaffs_obj *obj, ++ enum yaffs_obj_type type); ++ ++ ++int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR * name, int buffer_size); ++loff_t yaffs_get_obj_length(struct yaffs_obj *obj); ++int yaffs_get_obj_inode(struct yaffs_obj *obj); ++unsigned yaffs_get_obj_type(struct yaffs_obj *obj); ++int yaffs_get_obj_link_count(struct yaffs_obj *obj); ++ ++/* File operations */ ++int yaffs_file_rd(struct yaffs_obj *obj, u8 * buffer, loff_t offset, ++ int n_bytes); ++int yaffs_wr_file(struct yaffs_obj *obj, const u8 * buffer, loff_t offset, ++ int n_bytes, int write_trhrough); ++int yaffs_resize_file(struct yaffs_obj *obj, loff_t new_size); ++ ++struct yaffs_obj *yaffs_create_file(struct yaffs_obj *parent, ++ const YCHAR *name, u32 mode, u32 uid, ++ u32 gid); ++ ++int yaffs_flush_file(struct yaffs_obj *obj, int update_time, int data_sync); ++ ++/* Flushing and checkpointing */ ++void yaffs_flush_whole_cache(struct yaffs_dev *dev); ++ ++int yaffs_checkpoint_save(struct yaffs_dev *dev); ++int yaffs_checkpoint_restore(struct yaffs_dev *dev); ++ ++/* Directory operations */ ++struct yaffs_obj *yaffs_create_dir(struct yaffs_obj *parent, const YCHAR *name, ++ u32 mode, u32 uid, u32 gid); ++struct yaffs_obj *yaffs_find_by_name(struct yaffs_obj *the_dir, ++ const YCHAR *name); ++struct yaffs_obj *yaffs_find_by_number(struct yaffs_dev *dev, u32 number); ++ ++/* Link operations */ ++struct yaffs_obj *yaffs_link_obj(struct yaffs_obj *parent, const YCHAR *name, ++ struct yaffs_obj *equiv_obj); ++ ++struct yaffs_obj *yaffs_get_equivalent_obj(struct yaffs_obj *obj); ++ ++/* Symlink operations */ ++struct yaffs_obj *yaffs_create_symlink(struct yaffs_obj *parent, ++ const YCHAR *name, u32 mode, u32 uid, ++ u32 gid, const YCHAR *alias); ++YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj); ++ ++/* Special inodes (fifos, sockets and devices) */ ++struct yaffs_obj *yaffs_create_special(struct yaffs_obj *parent, ++ const YCHAR *name, u32 mode, u32 uid, ++ u32 gid, u32 rdev); ++ ++int yaffs_set_xattrib(struct yaffs_obj *obj, const YCHAR *name, ++ const void *value, int size, int flags); ++int yaffs_get_xattrib(struct yaffs_obj *obj, const YCHAR *name, void *value, ++ int size); ++int yaffs_list_xattrib(struct yaffs_obj *obj, char *buffer, int size); ++int yaffs_remove_xattrib(struct yaffs_obj *obj, const YCHAR *name); ++ ++/* Special directories */ ++struct yaffs_obj *yaffs_root(struct yaffs_dev *dev); ++struct yaffs_obj *yaffs_lost_n_found(struct yaffs_dev *dev); ++ ++void yaffs_handle_defered_free(struct yaffs_obj *obj); ++ ++void yaffs_update_dirty_dirs(struct yaffs_dev *dev); ++ ++int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency); ++ ++/* Debug dump */ ++int yaffs_dump_obj(struct yaffs_obj *obj); ++ ++void yaffs_guts_test(struct yaffs_dev *dev); ++int yaffs_guts_ll_init(struct yaffs_dev *dev); ++ ++ ++/* A few useful functions to be used within the core files*/ ++void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash, ++ int lyn); ++int yaffs_check_ff(u8 *buffer, int n_bytes); ++void yaffs_handle_chunk_error(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi); ++ ++u8 *yaffs_get_temp_buffer(struct yaffs_dev *dev); ++void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer); ++ ++struct yaffs_obj *yaffs_find_or_create_by_number(struct yaffs_dev *dev, ++ int number, ++ enum yaffs_obj_type type); ++int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk, ++ int nand_chunk, int in_scan); ++void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR *name); ++void yaffs_set_obj_name_from_oh(struct yaffs_obj *obj, ++ const struct yaffs_obj_hdr *oh); ++void yaffs_add_obj_to_dir(struct yaffs_obj *directory, struct yaffs_obj *obj); ++YCHAR *yaffs_clone_str(const YCHAR *str); ++void yaffs_link_fixup(struct yaffs_dev *dev, struct list_head *hard_list); ++void yaffs_block_became_dirty(struct yaffs_dev *dev, int block_no); ++int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, ++ int force, int is_shrink, int shadows, ++ struct yaffs_xattr_mod *xop); ++void yaffs_handle_shadowed_obj(struct yaffs_dev *dev, int obj_id, ++ int backward_scanning); ++int yaffs_check_alloc_available(struct yaffs_dev *dev, int n_chunks); ++struct yaffs_tnode *yaffs_get_tnode(struct yaffs_dev *dev); ++struct yaffs_tnode *yaffs_add_find_tnode_0(struct yaffs_dev *dev, ++ struct yaffs_file_var *file_struct, ++ u32 chunk_id, ++ struct yaffs_tnode *passed_tn); ++ ++int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset, ++ int n_bytes, int write_trhrough); ++void yaffs_resize_file_down(struct yaffs_obj *obj, loff_t new_size); ++void yaffs_skip_rest_of_block(struct yaffs_dev *dev); ++ ++int yaffs_count_free_chunks(struct yaffs_dev *dev); ++ ++struct yaffs_tnode *yaffs_find_tnode_0(struct yaffs_dev *dev, ++ struct yaffs_file_var *file_struct, ++ u32 chunk_id); ++ ++u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn, ++ unsigned pos); ++ ++int yaffs_is_non_empty_dir(struct yaffs_obj *obj); ++ ++int yaffs_guts_format_dev(struct yaffs_dev *dev); ++ ++void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr, ++ int *chunk_out, u32 *offset_out); ++/* ++ * Marshalling functions to get loff_t file sizes into aand out of ++ * object headers. ++ */ ++void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize); ++loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh); ++loff_t yaffs_max_file_size(struct yaffs_dev *dev); ++ ++/* ++ * Debug function to count number of blocks in each state ++ * NB Needs to be called with correct number of integers ++ */ ++ ++void yaffs_count_blocks_by_state(struct yaffs_dev *dev, int bs[10]); ++ ++int yaffs_find_chunk_in_file(struct yaffs_obj *in, int inode_chunk, ++ struct yaffs_ext_tags *tags); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_linux.h linux-3.15-rc5/fs/yaffs2/yaffs_linux.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_linux.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_linux.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,48 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_LINUX_H__ ++#define __YAFFS_LINUX_H__ ++ ++#include "yportenv.h" ++ ++struct yaffs_linux_context { ++ struct list_head context_list; /* List of these we have mounted */ ++ struct yaffs_dev *dev; ++ struct super_block *super; ++ struct task_struct *bg_thread; /* Background thread for this device */ ++ int bg_running; ++ struct mutex gross_lock; /* Gross locking mutex*/ ++ u8 *spare_buffer; /* For mtdif2 use. Don't know the buffer size ++ * at compile time so we have to allocate it. ++ */ ++ struct list_head search_contexts; ++ struct task_struct *readdir_process; ++ unsigned mount_id; ++ int dirty; ++}; ++ ++#define yaffs_dev_to_lc(dev) ((struct yaffs_linux_context *)((dev)->os_context)) ++#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context)) ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++#define WRITE_SIZE_STR "writesize" ++#define WRITE_SIZE(mtd) ((mtd)->writesize) ++#else ++#define WRITE_SIZE_STR "oobblock" ++#define WRITE_SIZE(mtd) ((mtd)->oobblock) ++#endif ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.c linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,309 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yportenv.h" ++ ++#include "yaffs_mtdif.h" ++ ++#include "linux/mtd/mtd.h" ++#include "linux/types.h" ++#include "linux/time.h" ++#include "linux/major.h" ++#include "linux/mtd/nand.h" ++#include "linux/kernel.h" ++#include "linux/version.h" ++#include "linux/types.h" ++ ++#include "yaffs_trace.h" ++#include "yaffs_guts.h" ++#include "yaffs_linux.h" ++ ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)) ++#define MTD_OPS_AUTO_OOB MTD_OOB_AUTO ++#endif ++ ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)) ++#define mtd_erase(m, ei) (m)->erase(m, ei) ++#define mtd_write_oob(m, addr, pops) (m)->write_oob(m, addr, pops) ++#define mtd_read_oob(m, addr, pops) (m)->read_oob(m, addr, pops) ++#define mtd_block_isbad(m, offs) (m)->block_isbad(m, offs) ++#define mtd_block_markbad(m, offs) (m)->block_markbad(m, offs) ++#endif ++ ++ ++ ++int nandmtd_erase_block(struct yaffs_dev *dev, int block_no) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ u32 addr = ++ ((loff_t) block_no) * dev->param.total_bytes_per_chunk * ++ dev->param.chunks_per_block; ++ struct erase_info ei; ++ int retval = 0; ++ ++ ei.mtd = mtd; ++ ei.addr = addr; ++ ei.len = dev->param.total_bytes_per_chunk * dev->param.chunks_per_block; ++ ei.time = 1000; ++ ei.retries = 2; ++ ei.callback = NULL; ++ ei.priv = (u_long) dev; ++ ++ retval = mtd_erase(mtd, &ei); ++ ++ if (retval == 0) ++ return YAFFS_OK; ++ ++ return YAFFS_FAIL; ++} ++ ++ ++static int yaffs_mtd_write(struct yaffs_dev *dev, int nand_chunk, ++ const u8 *data, int data_len, ++ const u8 *oob, int oob_len) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ loff_t addr; ++ struct mtd_oob_ops ops; ++ int retval; ++ ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "yaffs_mtd_write(%p, %d, %p, %d, %p, %d)\n", ++ dev, nand_chunk, data, data_len, oob, oob_len); ++ ++ if (!data || !data_len) { ++ data = NULL; ++ data_len = 0; ++ } ++ ++ if (!oob || !oob_len) { ++ oob = NULL; ++ oob_len = 0; ++ } ++ ++ addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; ++ memset(&ops, 0, sizeof(ops)); ++ ops.mode = MTD_OPS_AUTO_OOB; ++ ops.len = (data) ? data_len : 0; ++ ops.ooblen = oob_len; ++ ops.datbuf = (u8 *)data; ++ ops.oobbuf = (u8 *)oob; ++ ++ retval = mtd_write_oob(mtd, addr, &ops); ++ if (retval) { ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "write_oob failed, chunk %d, mtd error %d", ++ nand_chunk, retval); ++ } ++ return retval ? YAFFS_FAIL : YAFFS_OK; ++} ++ ++static int yaffs_mtd_read(struct yaffs_dev *dev, int nand_chunk, ++ u8 *data, int data_len, ++ u8 *oob, int oob_len, ++ enum yaffs_ecc_result *ecc_result) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ loff_t addr; ++ struct mtd_oob_ops ops; ++ int retval; ++ ++ addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; ++ memset(&ops, 0, sizeof(ops)); ++ ops.mode = MTD_OPS_AUTO_OOB; ++ ops.len = (data) ? data_len : 0; ++ ops.ooblen = oob_len; ++ ops.datbuf = data; ++ ops.oobbuf = oob; ++ ++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20)) ++ /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; ++ * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. ++ */ ++ ops.len = (ops.datbuf) ? ops.len : ops.ooblen; ++#endif ++ /* Read page and oob using MTD. ++ * Check status and determine ECC result. ++ */ ++ retval = mtd_read_oob(mtd, addr, &ops); ++ if (retval) ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "read_oob failed, chunk %d, mtd error %d", ++ nand_chunk, retval); ++ ++ switch (retval) { ++ case 0: ++ /* no error */ ++ if(ecc_result) ++ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; ++ break; ++ ++ case -EUCLEAN: ++ /* MTD's ECC fixed the data */ ++ if(ecc_result) ++ *ecc_result = YAFFS_ECC_RESULT_FIXED; ++ dev->n_ecc_fixed++; ++ break; ++ ++ case -EBADMSG: ++ default: ++ /* MTD's ECC could not fix the data */ ++ dev->n_ecc_unfixed++; ++ if(ecc_result) ++ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; ++ return YAFFS_FAIL; ++ } ++ ++ return YAFFS_OK; ++} ++ ++static int yaffs_mtd_erase(struct yaffs_dev *dev, int block_no) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ ++ loff_t addr; ++ struct erase_info ei; ++ int retval = 0; ++ u32 block_size; ++ ++ block_size = dev->param.total_bytes_per_chunk * ++ dev->param.chunks_per_block; ++ addr = ((loff_t) block_no) * block_size; ++ ++ ei.mtd = mtd; ++ ei.addr = addr; ++ ei.len = block_size; ++ ei.time = 1000; ++ ei.retries = 2; ++ ei.callback = NULL; ++ ei.priv = (u_long) dev; ++ ++ retval = mtd_erase(mtd, &ei); ++ ++ if (retval == 0) ++ return YAFFS_OK; ++ ++ return YAFFS_FAIL; ++} ++ ++static int yaffs_mtd_mark_bad(struct yaffs_dev *dev, int block_no) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ int blocksize = dev->param.chunks_per_block * dev->param.total_bytes_per_chunk; ++ int retval; ++ ++ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", block_no); ++ ++ retval = mtd_block_markbad(mtd, (loff_t) blocksize * block_no); ++ return (retval) ? YAFFS_FAIL : YAFFS_OK; ++} ++ ++static int yaffs_mtd_check_bad(struct yaffs_dev *dev, int block_no) ++{ ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ int blocksize = dev->param.chunks_per_block * dev->param.total_bytes_per_chunk; ++ int retval; ++ ++ yaffs_trace(YAFFS_TRACE_MTD, "checking block %d bad", block_no); ++ ++ retval = mtd_block_isbad(mtd, (loff_t) blocksize * block_no); ++ return (retval) ? YAFFS_FAIL : YAFFS_OK; ++} ++ ++static int yaffs_mtd_initialise(struct yaffs_dev *dev) ++{ ++ return YAFFS_OK; ++} ++ ++static int yaffs_mtd_deinitialise(struct yaffs_dev *dev) ++{ ++ return YAFFS_OK; ++} ++ ++ ++void yaffs_mtd_drv_install(struct yaffs_dev *dev) ++{ ++ struct yaffs_driver *drv = &dev->drv; ++ ++ drv->drv_write_chunk_fn = yaffs_mtd_write; ++ drv->drv_read_chunk_fn = yaffs_mtd_read; ++ drv->drv_erase_fn = yaffs_mtd_erase; ++ drv->drv_mark_bad_fn = yaffs_mtd_mark_bad; ++ drv->drv_check_bad_fn = yaffs_mtd_check_bad; ++ drv->drv_initialise_fn = yaffs_mtd_initialise; ++ drv->drv_deinitialise_fn = yaffs_mtd_deinitialise; ++} ++ ++ ++struct mtd_info * yaffs_get_mtd_device(dev_t sdev) ++{ ++ struct mtd_info *mtd; ++ ++ mtd = yaffs_get_mtd_device(sdev); ++ ++ /* Check it's an mtd device..... */ ++ if (MAJOR(sdev) != MTD_BLOCK_MAJOR) ++ return NULL; /* This isn't an mtd device */ ++ ++ /* Check it's NAND */ ++ if (mtd->type != MTD_NANDFLASH) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: MTD device is not NAND it's type %d", ++ mtd->type); ++ return NULL; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_OS, " %s %d", WRITE_SIZE_STR, WRITE_SIZE(mtd)); ++ yaffs_trace(YAFFS_TRACE_OS, " oobsize %d", mtd->oobsize); ++ yaffs_trace(YAFFS_TRACE_OS, " erasesize %d", mtd->erasesize); ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++ yaffs_trace(YAFFS_TRACE_OS, " size %u", mtd->size); ++#else ++ yaffs_trace(YAFFS_TRACE_OS, " size %lld", mtd->size); ++#endif ++ ++ return mtd; ++} ++ ++int yaffs_verify_mtd(struct mtd_info *mtd, int yaffs_version, int inband_tags) ++{ ++ if (yaffs_version == 2) { ++ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || ++ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && ++ !inband_tags) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "MTD device does not have the right page sizes" ++ ); ++ return -1; ++ } ++ } else { ++ if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || ++ mtd->oobsize != YAFFS_BYTES_PER_SPARE) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "MTD device does not support have the right page sizes" ++ ); ++ return -1; ++ } ++ } ++ ++ return 0; ++} ++ ++ ++void yaffs_put_mtd_device(struct mtd_info *mtd) ++{ ++ if(mtd) ++ put_mtd_device(mtd); ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.h linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_mtdif.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_mtdif.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,25 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_MTDIF_H__ ++#define __YAFFS_MTDIF_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_mtd_drv_install(struct yaffs_dev *dev); ++struct mtd_info * yaffs_get_mtd_device(dev_t sdev); ++void yaffs_put_mtd_device(struct mtd_info *mtd); ++int yaffs_verify_mtd(struct mtd_info *mtd, int yaffs_version, int inband_tags); ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.c linux-3.15-rc5/fs/yaffs2/yaffs_nameval.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_nameval.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,208 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * This simple implementation of a name-value store assumes a small number of ++* values and fits into a small finite buffer. ++ * ++ * Each attribute is stored as a record: ++ * sizeof(int) bytes record size. ++ * strnlen+1 bytes name null terminated. ++ * nbytes value. ++ * ---------- ++ * total size stored in record size ++ * ++ * This code has not been tested with unicode yet. ++ */ ++ ++#include "yaffs_nameval.h" ++ ++#include "yportenv.h" ++ ++static int nval_find(const char *xb, int xb_size, const YCHAR *name, ++ int *exist_size) ++{ ++ int pos = 0; ++ int size; ++ ++ memcpy(&size, xb, sizeof(int)); ++ while (size > 0 && (size < xb_size) && (pos + size < xb_size)) { ++ if (!strncmp((YCHAR *) (xb + pos + sizeof(int)), ++ name, size)) { ++ if (exist_size) ++ *exist_size = size; ++ return pos; ++ } ++ pos += size; ++ if (pos < xb_size - sizeof(int)) ++ memcpy(&size, xb + pos, sizeof(int)); ++ else ++ size = 0; ++ } ++ if (exist_size) ++ *exist_size = 0; ++ return -ENODATA; ++} ++ ++static int nval_used(const char *xb, int xb_size) ++{ ++ int pos = 0; ++ int size; ++ ++ memcpy(&size, xb + pos, sizeof(int)); ++ while (size > 0 && (size < xb_size) && (pos + size < xb_size)) { ++ pos += size; ++ if (pos < xb_size - sizeof(int)) ++ memcpy(&size, xb + pos, sizeof(int)); ++ else ++ size = 0; ++ } ++ return pos; ++} ++ ++int nval_del(char *xb, int xb_size, const YCHAR *name) ++{ ++ int pos = nval_find(xb, xb_size, name, NULL); ++ int size; ++ ++ if (pos < 0 || pos >= xb_size) ++ return -ENODATA; ++ ++ /* Find size, shift rest over this record, ++ * then zero out the rest of buffer */ ++ memcpy(&size, xb + pos, sizeof(int)); ++ memcpy(xb + pos, xb + pos + size, xb_size - (pos + size)); ++ memset(xb + (xb_size - size), 0, size); ++ return 0; ++} ++ ++int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, ++ int bsize, int flags) ++{ ++ int pos; ++ int namelen = strnlen(name, xb_size); ++ int reclen; ++ int size_exist = 0; ++ int space; ++ int start; ++ ++ pos = nval_find(xb, xb_size, name, &size_exist); ++ ++ if (flags & XATTR_CREATE && pos >= 0) ++ return -EEXIST; ++ if (flags & XATTR_REPLACE && pos < 0) ++ return -ENODATA; ++ ++ start = nval_used(xb, xb_size); ++ space = xb_size - start + size_exist; ++ ++ reclen = (sizeof(int) + namelen + 1 + bsize); ++ ++ if (reclen > space) ++ return -ENOSPC; ++ ++ if (pos >= 0) { ++ nval_del(xb, xb_size, name); ++ start = nval_used(xb, xb_size); ++ } ++ ++ pos = start; ++ ++ memcpy(xb + pos, &reclen, sizeof(int)); ++ pos += sizeof(int); ++ strncpy((YCHAR *) (xb + pos), name, reclen); ++ pos += (namelen + 1); ++ memcpy(xb + pos, buf, bsize); ++ return 0; ++} ++ ++int nval_get(const char *xb, int xb_size, const YCHAR * name, char *buf, ++ int bsize) ++{ ++ int pos = nval_find(xb, xb_size, name, NULL); ++ int size; ++ ++ if (pos >= 0 && pos < xb_size) { ++ ++ memcpy(&size, xb + pos, sizeof(int)); ++ pos += sizeof(int); /* advance past record length */ ++ size -= sizeof(int); ++ ++ /* Advance over name string */ ++ while (xb[pos] && size > 0 && pos < xb_size) { ++ pos++; ++ size--; ++ } ++ /*Advance over NUL */ ++ pos++; ++ size--; ++ ++ /* If bsize is zero then this is a size query. ++ * Return the size, but don't copy. ++ */ ++ if (!bsize) ++ return size; ++ ++ if (size <= bsize) { ++ memcpy(buf, xb + pos, size); ++ return size; ++ } ++ } ++ if (pos >= 0) ++ return -ERANGE; ++ ++ return -ENODATA; ++} ++ ++int nval_list(const char *xb, int xb_size, char *buf, int bsize) ++{ ++ int pos = 0; ++ int size; ++ int name_len; ++ int ncopied = 0; ++ int filled = 0; ++ ++ memcpy(&size, xb + pos, sizeof(int)); ++ while (size > sizeof(int) && ++ size <= xb_size && ++ (pos + size) < xb_size && ++ !filled) { ++ pos += sizeof(int); ++ size -= sizeof(int); ++ name_len = strnlen((YCHAR *) (xb + pos), size); ++ if (ncopied + name_len + 1 < bsize) { ++ memcpy(buf, xb + pos, name_len * sizeof(YCHAR)); ++ buf += name_len; ++ *buf = '\0'; ++ buf++; ++ if (sizeof(YCHAR) > 1) { ++ *buf = '\0'; ++ buf++; ++ } ++ ncopied += (name_len + 1); ++ } else { ++ filled = 1; ++ } ++ pos += size; ++ if (pos < xb_size - sizeof(int)) ++ memcpy(&size, xb + pos, sizeof(int)); ++ else ++ size = 0; ++ } ++ return ncopied; ++} ++ ++int nval_hasvalues(const char *xb, int xb_size) ++{ ++ return nval_used(xb, xb_size) > 0; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.h linux-3.15-rc5/fs/yaffs2/yaffs_nameval.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nameval.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_nameval.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,28 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __NAMEVAL_H__ ++#define __NAMEVAL_H__ ++ ++#include "yportenv.h" ++ ++int nval_del(char *xb, int xb_size, const YCHAR * name); ++int nval_set(char *xb, int xb_size, const YCHAR * name, const char *buf, ++ int bsize, int flags); ++int nval_get(const char *xb, int xb_size, const YCHAR * name, char *buf, ++ int bsize); ++int nval_list(const char *xb, int xb_size, char *buf, int bsize); ++int nval_hasvalues(const char *xb, int xb_size); ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.c linux-3.15-rc5/fs/yaffs2/yaffs_nand.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_nand.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,122 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_nand.h" ++#include "yaffs_tagscompat.h" ++ ++#include "yaffs_getblockinfo.h" ++#include "yaffs_summary.h" ++ ++static int apply_chunk_offset(struct yaffs_dev *dev, int chunk) ++{ ++ return chunk - dev->chunk_offset; ++} ++ ++int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk, ++ u8 *buffer, struct yaffs_ext_tags *tags) ++{ ++ int result; ++ struct yaffs_ext_tags local_tags; ++ int flash_chunk = apply_chunk_offset(dev, nand_chunk); ++ ++ dev->n_page_reads++; ++ ++ /* If there are no tags provided use local tags. */ ++ if (!tags) ++ tags = &local_tags; ++ ++ result = dev->tagger.read_chunk_tags_fn(dev, flash_chunk, buffer, tags); ++ if (tags && tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) { ++ ++ struct yaffs_block_info *bi; ++ bi = yaffs_get_block_info(dev, ++ nand_chunk / ++ dev->param.chunks_per_block); ++ yaffs_handle_chunk_error(dev, bi); ++ } ++ return result; ++} ++ ++int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev, ++ int nand_chunk, ++ const u8 *buffer, struct yaffs_ext_tags *tags) ++{ ++ int result; ++ int flash_chunk = apply_chunk_offset(dev, nand_chunk); ++ ++ dev->n_page_writes++; ++ ++ if (!tags) { ++ yaffs_trace(YAFFS_TRACE_ERROR, "Writing with no tags"); ++ BUG(); ++ return YAFFS_FAIL; ++ } ++ ++ tags->seq_number = dev->seq_number; ++ tags->chunk_used = 1; ++ yaffs_trace(YAFFS_TRACE_WRITE, ++ "Writing chunk %d tags %d %d", ++ nand_chunk, tags->obj_id, tags->chunk_id); ++ ++ result = dev->tagger.write_chunk_tags_fn(dev, flash_chunk, ++ buffer, tags); ++ ++ yaffs_summary_add(dev, tags, nand_chunk); ++ ++ return result; ++} ++ ++int yaffs_mark_bad(struct yaffs_dev *dev, int block_no) ++{ ++ block_no -= dev->block_offset; ++ dev->n_bad_markings++; ++ ++ if (dev->param.disable_bad_block_marking) ++ return YAFFS_OK; ++ ++ return dev->tagger.mark_bad_fn(dev, block_no); ++} ++ ++ ++int yaffs_query_init_block_state(struct yaffs_dev *dev, ++ int block_no, ++ enum yaffs_block_state *state, ++ u32 *seq_number) ++{ ++ block_no -= dev->block_offset; ++ return dev->tagger.query_block_fn(dev, block_no, state, seq_number); ++} ++ ++int yaffs_erase_block(struct yaffs_dev *dev, int block_no) ++{ ++ int result; ++ ++ block_no -= dev->block_offset; ++ dev->n_erasures++; ++ result = dev->drv.drv_erase_fn(dev, block_no); ++ return result; ++} ++ ++int yaffs_init_nand(struct yaffs_dev *dev) ++{ ++ if (dev->drv.drv_initialise_fn) ++ return dev->drv.drv_initialise_fn(dev); ++ return YAFFS_OK; ++} ++ ++int yaffs_deinit_nand(struct yaffs_dev *dev) ++{ ++ if (dev->drv.drv_deinitialise_fn) ++ return dev->drv.drv_deinitialise_fn(dev); ++ return YAFFS_OK; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.h linux-3.15-rc5/fs/yaffs2/yaffs_nand.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_nand.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_nand.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,39 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_NAND_H__ ++#define __YAFFS_NAND_H__ ++#include "yaffs_guts.h" ++ ++int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk, ++ u8 *buffer, struct yaffs_ext_tags *tags); ++ ++int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev, ++ int nand_chunk, ++ const u8 *buffer, struct yaffs_ext_tags *tags); ++ ++int yaffs_mark_bad(struct yaffs_dev *dev, int block_no); ++ ++int yaffs_query_init_block_state(struct yaffs_dev *dev, ++ int block_no, ++ enum yaffs_block_state *state, ++ unsigned *seq_number); ++ ++int yaffs_erase_block(struct yaffs_dev *dev, int flash_block); ++ ++int yaffs_init_nand(struct yaffs_dev *dev); ++int yaffs_deinit_nand(struct yaffs_dev *dev); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.c linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,56 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_packedtags1.h" ++#include "yportenv.h" ++ ++static const u8 all_ff[20] = { ++ 0xff, 0xff, 0xff, 0xff, ++ 0xff, 0xff, 0xff, 0xff, ++ 0xff, 0xff, 0xff, 0xff, ++ 0xff, 0xff, 0xff, 0xff, ++ 0xff, 0xff, 0xff, 0xff ++}; ++ ++void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt, ++ const struct yaffs_ext_tags *t) ++{ ++ pt->chunk_id = t->chunk_id; ++ pt->serial_number = t->serial_number; ++ pt->n_bytes = t->n_bytes; ++ pt->obj_id = t->obj_id; ++ pt->ecc = 0; ++ pt->deleted = (t->is_deleted) ? 0 : 1; ++ pt->unused_stuff = 0; ++ pt->should_be_ff = 0xffffffff; ++} ++ ++void yaffs_unpack_tags1(struct yaffs_ext_tags *t, ++ const struct yaffs_packed_tags1 *pt) ++{ ++ ++ if (memcmp(all_ff, pt, sizeof(struct yaffs_packed_tags1))) { ++ t->block_bad = 0; ++ if (pt->should_be_ff != 0xffffffff) ++ t->block_bad = 1; ++ t->chunk_used = 1; ++ t->obj_id = pt->obj_id; ++ t->chunk_id = pt->chunk_id; ++ t->n_bytes = pt->n_bytes; ++ t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR; ++ t->is_deleted = (pt->deleted) ? 0 : 1; ++ t->serial_number = pt->serial_number; ++ } else { ++ memset(t, 0, sizeof(struct yaffs_ext_tags)); ++ } ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.h linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags1.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags1.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,39 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */ ++ ++#ifndef __YAFFS_PACKEDTAGS1_H__ ++#define __YAFFS_PACKEDTAGS1_H__ ++ ++#include "yaffs_guts.h" ++ ++struct yaffs_packed_tags1 { ++ u32 chunk_id:20; ++ u32 serial_number:2; ++ u32 n_bytes:10; ++ u32 obj_id:18; ++ u32 ecc:12; ++ u32 deleted:1; ++ u32 unused_stuff:1; ++ unsigned should_be_ff; ++ ++}; ++ ++void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt, ++ const struct yaffs_ext_tags *t); ++void yaffs_unpack_tags1(struct yaffs_ext_tags *t, ++ const struct yaffs_packed_tags1 *pt); ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.c linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,197 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_packedtags2.h" ++#include "yportenv.h" ++#include "yaffs_trace.h" ++ ++/* This code packs a set of extended tags into a binary structure for ++ * NAND storage ++ */ ++ ++/* Some of the information is "extra" struff which can be packed in to ++ * speed scanning ++ * This is defined by having the EXTRA_HEADER_INFO_FLAG set. ++ */ ++ ++/* Extra flags applied to chunk_id */ ++ ++#define EXTRA_HEADER_INFO_FLAG 0x80000000 ++#define EXTRA_SHRINK_FLAG 0x40000000 ++#define EXTRA_SHADOWS_FLAG 0x20000000 ++#define EXTRA_SPARE_FLAGS 0x10000000 ++ ++#define ALL_EXTRA_FLAGS 0xf0000000 ++ ++/* Also, the top 4 bits of the object Id are set to the object type. */ ++#define EXTRA_OBJECT_TYPE_SHIFT (28) ++#define EXTRA_OBJECT_TYPE_MASK ((0x0f) << EXTRA_OBJECT_TYPE_SHIFT) ++ ++static void yaffs_dump_packed_tags2_tags_only( ++ const struct yaffs_packed_tags2_tags_only *ptt) ++{ ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "packed tags obj %d chunk %d byte %d seq %d", ++ ptt->obj_id, ptt->chunk_id, ptt->n_bytes, ptt->seq_number); ++} ++ ++static void yaffs_dump_packed_tags2(const struct yaffs_packed_tags2 *pt) ++{ ++ yaffs_dump_packed_tags2_tags_only(&pt->t); ++} ++ ++static void yaffs_dump_tags2(const struct yaffs_ext_tags *t) ++{ ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d", ++ t->ecc_result, t->block_bad, t->chunk_used, t->obj_id, ++ t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number, ++ t->seq_number); ++ ++} ++ ++static int yaffs_check_tags_extra_packable(const struct yaffs_ext_tags *t) ++{ ++ if (t->chunk_id != 0 || !t->extra_available) ++ return 0; ++ ++ /* Check if the file size is too long to store */ ++ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE && ++ (t->extra_file_size >> 31) != 0) ++ return 0; ++ return 1; ++} ++ ++void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *ptt, ++ const struct yaffs_ext_tags *t) ++{ ++ ptt->chunk_id = t->chunk_id; ++ ptt->seq_number = t->seq_number; ++ ptt->n_bytes = t->n_bytes; ++ ptt->obj_id = t->obj_id; ++ ++ /* Only store extra tags for object headers. ++ * If it is a file then only store if the file size is short\ ++ * enough to fit. ++ */ ++ if (yaffs_check_tags_extra_packable(t)) { ++ /* Store the extra header info instead */ ++ /* We save the parent object in the chunk_id */ ++ ptt->chunk_id = EXTRA_HEADER_INFO_FLAG | t->extra_parent_id; ++ if (t->extra_is_shrink) ++ ptt->chunk_id |= EXTRA_SHRINK_FLAG; ++ if (t->extra_shadows) ++ ptt->chunk_id |= EXTRA_SHADOWS_FLAG; ++ ++ ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; ++ ptt->obj_id |= (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT); ++ ++ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ ptt->n_bytes = t->extra_equiv_id; ++ else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE) ++ ptt->n_bytes = (unsigned) t->extra_file_size; ++ else ++ ptt->n_bytes = 0; ++ } ++ ++ yaffs_dump_packed_tags2_tags_only(ptt); ++ yaffs_dump_tags2(t); ++} ++ ++void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt, ++ const struct yaffs_ext_tags *t, int tags_ecc) ++{ ++ yaffs_pack_tags2_tags_only(&pt->t, t); ++ ++ if (tags_ecc) ++ yaffs_ecc_calc_other((unsigned char *)&pt->t, ++ sizeof(struct yaffs_packed_tags2_tags_only), ++ &pt->ecc); ++} ++ ++void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t, ++ struct yaffs_packed_tags2_tags_only *ptt) ++{ ++ memset(t, 0, sizeof(struct yaffs_ext_tags)); ++ ++ if (ptt->seq_number == 0xffffffff) ++ return; ++ ++ t->block_bad = 0; ++ t->chunk_used = 1; ++ t->obj_id = ptt->obj_id; ++ t->chunk_id = ptt->chunk_id; ++ t->n_bytes = ptt->n_bytes; ++ t->is_deleted = 0; ++ t->serial_number = 0; ++ t->seq_number = ptt->seq_number; ++ ++ /* Do extra header info stuff */ ++ if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) { ++ t->chunk_id = 0; ++ t->n_bytes = 0; ++ ++ t->extra_available = 1; ++ t->extra_parent_id = ptt->chunk_id & (~(ALL_EXTRA_FLAGS)); ++ t->extra_is_shrink = ptt->chunk_id & EXTRA_SHRINK_FLAG ? 1 : 0; ++ t->extra_shadows = ptt->chunk_id & EXTRA_SHADOWS_FLAG ? 1 : 0; ++ t->extra_obj_type = ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT; ++ t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK; ++ ++ if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ t->extra_equiv_id = ptt->n_bytes; ++ else ++ t->extra_file_size = ptt->n_bytes; ++ } ++ yaffs_dump_packed_tags2_tags_only(ptt); ++ yaffs_dump_tags2(t); ++} ++ ++void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt, ++ int tags_ecc) ++{ ++ enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR; ++ ++ if (pt->t.seq_number != 0xffffffff && tags_ecc) { ++ /* Chunk is in use and we need to do ECC */ ++ ++ struct yaffs_ecc_other ecc; ++ int result; ++ yaffs_ecc_calc_other((unsigned char *)&pt->t, ++ sizeof(struct yaffs_packed_tags2_tags_only), ++ &ecc); ++ result = ++ yaffs_ecc_correct_other((unsigned char *)&pt->t, ++ sizeof(struct yaffs_packed_tags2_tags_only), ++ &pt->ecc, &ecc); ++ switch (result) { ++ case 0: ++ ecc_result = YAFFS_ECC_RESULT_NO_ERROR; ++ break; ++ case 1: ++ ecc_result = YAFFS_ECC_RESULT_FIXED; ++ break; ++ case -1: ++ ecc_result = YAFFS_ECC_RESULT_UNFIXED; ++ break; ++ default: ++ ecc_result = YAFFS_ECC_RESULT_UNKNOWN; ++ } ++ } ++ yaffs_unpack_tags2_tags_only(t, &pt->t); ++ ++ t->ecc_result = ecc_result; ++ ++ yaffs_dump_packed_tags2(pt); ++ yaffs_dump_tags2(t); ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.h linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_packedtags2.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_packedtags2.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,47 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++/* This is used to pack YAFFS2 tags, not YAFFS1tags. */ ++ ++#ifndef __YAFFS_PACKEDTAGS2_H__ ++#define __YAFFS_PACKEDTAGS2_H__ ++ ++#include "yaffs_guts.h" ++#include "yaffs_ecc.h" ++ ++struct yaffs_packed_tags2_tags_only { ++ unsigned seq_number; ++ unsigned obj_id; ++ unsigned chunk_id; ++ unsigned n_bytes; ++}; ++ ++struct yaffs_packed_tags2 { ++ struct yaffs_packed_tags2_tags_only t; ++ struct yaffs_ecc_other ecc; ++}; ++ ++/* Full packed tags with ECC, used for oob tags */ ++void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt, ++ const struct yaffs_ext_tags *t, int tags_ecc); ++void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt, ++ int tags_ecc); ++ ++/* Only the tags part (no ECC for use with inband tags */ ++void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *pt, ++ const struct yaffs_ext_tags *t); ++void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t, ++ struct yaffs_packed_tags2_tags_only *pt); ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.c linux-3.15-rc5/fs/yaffs2/yaffs_summary.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_summary.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,312 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* Summaries write the useful part of the tags for the chunks in a block into an ++ * an array which is written to the last n chunks of the block. ++ * Reading the summaries gives all the tags for the block in one read. Much ++ * faster. ++ * ++ * Chunks holding summaries are marked with tags making it look like ++ * they are part of a fake file. ++ * ++ * The summary could also be used during gc. ++ * ++ */ ++ ++#include "yaffs_summary.h" ++#include "yaffs_packedtags2.h" ++#include "yaffs_nand.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_bitmap.h" ++ ++/* ++ * The summary is built up in an array of summary tags. ++ * This gets written to the last one or two (maybe more) chunks in a block. ++ * A summary header is written as the first part of each chunk of summary data. ++ * The summary header must match or the summary is rejected. ++ */ ++ ++/* Summary tags don't need the sequence number because that is redundant. */ ++struct yaffs_summary_tags { ++ unsigned obj_id; ++ unsigned chunk_id; ++ unsigned n_bytes; ++}; ++ ++/* Summary header */ ++struct yaffs_summary_header { ++ unsigned version; /* Must match current version */ ++ unsigned block; /* Must be this block */ ++ unsigned seq; /* Must be this sequence number */ ++ unsigned sum; /* Just add up all the bytes in the tags */ ++}; ++ ++ ++static void yaffs_summary_clear(struct yaffs_dev *dev) ++{ ++ if (!dev->sum_tags) ++ return; ++ memset(dev->sum_tags, 0, dev->chunks_per_summary * ++ sizeof(struct yaffs_summary_tags)); ++} ++ ++ ++void yaffs_summary_deinit(struct yaffs_dev *dev) ++{ ++ kfree(dev->sum_tags); ++ dev->sum_tags = NULL; ++ kfree(dev->gc_sum_tags); ++ dev->gc_sum_tags = NULL; ++ dev->chunks_per_summary = 0; ++} ++ ++int yaffs_summary_init(struct yaffs_dev *dev) ++{ ++ int sum_bytes; ++ int chunks_used; /* Number of chunks used by summary */ ++ int sum_tags_bytes; ++ ++ sum_bytes = dev->param.chunks_per_block * ++ sizeof(struct yaffs_summary_tags); ++ ++ chunks_used = (sum_bytes + dev->data_bytes_per_chunk - 1)/ ++ (dev->data_bytes_per_chunk - ++ sizeof(struct yaffs_summary_header)); ++ ++ dev->chunks_per_summary = dev->param.chunks_per_block - chunks_used; ++ sum_tags_bytes = sizeof(struct yaffs_summary_tags) * ++ dev->chunks_per_summary; ++ dev->sum_tags = kmalloc(sum_tags_bytes, GFP_NOFS); ++ dev->gc_sum_tags = kmalloc(sum_tags_bytes, GFP_NOFS); ++ if (!dev->sum_tags || !dev->gc_sum_tags) { ++ yaffs_summary_deinit(dev); ++ return YAFFS_FAIL; ++ } ++ ++ yaffs_summary_clear(dev); ++ ++ return YAFFS_OK; ++} ++ ++static unsigned yaffs_summary_sum(struct yaffs_dev *dev) ++{ ++ u8 *sum_buffer = (u8 *)dev->sum_tags; ++ int i; ++ unsigned sum = 0; ++ ++ i = sizeof(struct yaffs_summary_tags) * ++ dev->chunks_per_summary; ++ while (i > 0) { ++ sum += *sum_buffer; ++ sum_buffer++; ++ i--; ++ } ++ ++ return sum; ++} ++ ++static int yaffs_summary_write(struct yaffs_dev *dev, int blk) ++{ ++ struct yaffs_ext_tags tags; ++ u8 *buffer; ++ u8 *sum_buffer = (u8 *)dev->sum_tags; ++ int n_bytes; ++ int chunk_in_nand; ++ int chunk_in_block; ++ int result; ++ int this_tx; ++ struct yaffs_summary_header hdr; ++ int sum_bytes_per_chunk = dev->data_bytes_per_chunk - sizeof(hdr); ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk); ++ ++ buffer = yaffs_get_temp_buffer(dev); ++ n_bytes = sizeof(struct yaffs_summary_tags) * ++ dev->chunks_per_summary; ++ memset(&tags, 0, sizeof(struct yaffs_ext_tags)); ++ tags.obj_id = YAFFS_OBJECTID_SUMMARY; ++ tags.chunk_id = 1; ++ chunk_in_block = dev->chunks_per_summary; ++ chunk_in_nand = dev->alloc_block * dev->param.chunks_per_block + ++ dev->chunks_per_summary; ++ hdr.version = YAFFS_SUMMARY_VERSION; ++ hdr.block = blk; ++ hdr.seq = bi->seq_number; ++ hdr.sum = yaffs_summary_sum(dev); ++ ++ do { ++ this_tx = n_bytes; ++ if (this_tx > sum_bytes_per_chunk) ++ this_tx = sum_bytes_per_chunk; ++ memcpy(buffer, &hdr, sizeof(hdr)); ++ memcpy(buffer + sizeof(hdr), sum_buffer, this_tx); ++ tags.n_bytes = this_tx + sizeof(hdr); ++ result = yaffs_wr_chunk_tags_nand(dev, chunk_in_nand, ++ buffer, &tags); ++ ++ if (result != YAFFS_OK) ++ break; ++ yaffs_set_chunk_bit(dev, blk, chunk_in_block); ++ bi->pages_in_use++; ++ dev->n_free_chunks--; ++ ++ n_bytes -= this_tx; ++ sum_buffer += this_tx; ++ chunk_in_nand++; ++ chunk_in_block++; ++ tags.chunk_id++; ++ } while (result == YAFFS_OK && n_bytes > 0); ++ yaffs_release_temp_buffer(dev, buffer); ++ ++ ++ if (result == YAFFS_OK) ++ bi->has_summary = 1; ++ ++ ++ return result; ++} ++ ++int yaffs_summary_read(struct yaffs_dev *dev, ++ struct yaffs_summary_tags *st, ++ int blk) ++{ ++ struct yaffs_ext_tags tags; ++ u8 *buffer; ++ u8 *sum_buffer = (u8 *)st; ++ int n_bytes; ++ int chunk_id; ++ int chunk_in_nand; ++ int chunk_in_block; ++ int result; ++ int this_tx; ++ struct yaffs_summary_header hdr; ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk); ++ int sum_bytes_per_chunk = dev->data_bytes_per_chunk - sizeof(hdr); ++ int sum_tags_bytes; ++ ++ sum_tags_bytes = sizeof(struct yaffs_summary_tags) * ++ dev->chunks_per_summary; ++ buffer = yaffs_get_temp_buffer(dev); ++ n_bytes = sizeof(struct yaffs_summary_tags) * dev->chunks_per_summary; ++ chunk_in_block = dev->chunks_per_summary; ++ chunk_in_nand = blk * dev->param.chunks_per_block + ++ dev->chunks_per_summary; ++ chunk_id = 1; ++ do { ++ this_tx = n_bytes; ++ if (this_tx > sum_bytes_per_chunk) ++ this_tx = sum_bytes_per_chunk; ++ result = yaffs_rd_chunk_tags_nand(dev, chunk_in_nand, ++ buffer, &tags); ++ ++ if (tags.chunk_id != chunk_id || ++ tags.obj_id != YAFFS_OBJECTID_SUMMARY || ++ tags.chunk_used == 0 || ++ tags.ecc_result > YAFFS_ECC_RESULT_FIXED || ++ tags.n_bytes != (this_tx + sizeof(hdr))) ++ result = YAFFS_FAIL; ++ if (result != YAFFS_OK) ++ break; ++ ++ if (st == dev->sum_tags) { ++ /* If we're scanning then update the block info */ ++ yaffs_set_chunk_bit(dev, blk, chunk_in_block); ++ bi->pages_in_use++; ++ } ++ memcpy(&hdr, buffer, sizeof(hdr)); ++ memcpy(sum_buffer, buffer + sizeof(hdr), this_tx); ++ n_bytes -= this_tx; ++ sum_buffer += this_tx; ++ chunk_in_nand++; ++ chunk_in_block++; ++ chunk_id++; ++ } while (result == YAFFS_OK && n_bytes > 0); ++ yaffs_release_temp_buffer(dev, buffer); ++ ++ if (result == YAFFS_OK) { ++ /* Verify header */ ++ if (hdr.version != YAFFS_SUMMARY_VERSION || ++ hdr.seq != bi->seq_number || ++ hdr.sum != yaffs_summary_sum(dev)) ++ result = YAFFS_FAIL; ++ } ++ ++ if (st == dev->sum_tags && result == YAFFS_OK) ++ bi->has_summary = 1; ++ ++ return result; ++} ++ ++int yaffs_summary_add(struct yaffs_dev *dev, ++ struct yaffs_ext_tags *tags, ++ int chunk_in_nand) ++{ ++ struct yaffs_packed_tags2_tags_only tags_only; ++ struct yaffs_summary_tags *sum_tags; ++ int block_in_nand = chunk_in_nand / dev->param.chunks_per_block; ++ int chunk_in_block = chunk_in_nand % dev->param.chunks_per_block; ++ ++ if (!dev->sum_tags) ++ return YAFFS_OK; ++ ++ if (chunk_in_block >= 0 && chunk_in_block < dev->chunks_per_summary) { ++ yaffs_pack_tags2_tags_only(&tags_only, tags); ++ sum_tags = &dev->sum_tags[chunk_in_block]; ++ sum_tags->chunk_id = tags_only.chunk_id; ++ sum_tags->n_bytes = tags_only.n_bytes; ++ sum_tags->obj_id = tags_only.obj_id; ++ ++ if (chunk_in_block == dev->chunks_per_summary - 1) { ++ /* Time to write out the summary */ ++ yaffs_summary_write(dev, block_in_nand); ++ yaffs_summary_clear(dev); ++ yaffs_skip_rest_of_block(dev); ++ } ++ } ++ return YAFFS_OK; ++} ++ ++int yaffs_summary_fetch(struct yaffs_dev *dev, ++ struct yaffs_ext_tags *tags, ++ int chunk_in_block) ++{ ++ struct yaffs_packed_tags2_tags_only tags_only; ++ struct yaffs_summary_tags *sum_tags; ++ if (chunk_in_block >= 0 && chunk_in_block < dev->chunks_per_summary) { ++ sum_tags = &dev->sum_tags[chunk_in_block]; ++ tags_only.chunk_id = sum_tags->chunk_id; ++ tags_only.n_bytes = sum_tags->n_bytes; ++ tags_only.obj_id = sum_tags->obj_id; ++ yaffs_unpack_tags2_tags_only(tags, &tags_only); ++ return YAFFS_OK; ++ } ++ return YAFFS_FAIL; ++} ++ ++void yaffs_summary_gc(struct yaffs_dev *dev, int blk) ++{ ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, blk); ++ int i; ++ ++ if (!bi->has_summary) ++ return; ++ ++ for (i = dev->chunks_per_summary; ++ i < dev->param.chunks_per_block; ++ i++) { ++ if (yaffs_check_chunk_bit(dev, blk, i)) { ++ yaffs_clear_chunk_bit(dev, blk, i); ++ bi->pages_in_use--; ++ dev->n_free_chunks++; ++ } ++ } ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.h linux-3.15-rc5/fs/yaffs2/yaffs_summary.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_summary.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_summary.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,37 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_SUMMARY_H__ ++#define __YAFFS_SUMMARY_H__ ++ ++#include "yaffs_packedtags2.h" ++ ++ ++int yaffs_summary_init(struct yaffs_dev *dev); ++void yaffs_summary_deinit(struct yaffs_dev *dev); ++ ++int yaffs_summary_add(struct yaffs_dev *dev, ++ struct yaffs_ext_tags *tags, ++ int chunk_in_block); ++int yaffs_summary_fetch(struct yaffs_dev *dev, ++ struct yaffs_ext_tags *tags, ++ int chunk_in_block); ++int yaffs_summary_read(struct yaffs_dev *dev, ++ struct yaffs_summary_tags *st, ++ int blk); ++void yaffs_summary_gc(struct yaffs_dev *dev, int blk); ++ ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.c linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,381 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_guts.h" ++#include "yaffs_tagscompat.h" ++#include "yaffs_ecc.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_trace.h" ++ ++static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk); ++ ++ ++/********** Tags ECC calculations *********/ ++ ++ ++void yaffs_calc_tags_ecc(struct yaffs_tags *tags) ++{ ++ /* Calculate an ecc */ ++ unsigned char *b = ((union yaffs_tags_union *)tags)->as_bytes; ++ unsigned i, j; ++ unsigned ecc = 0; ++ unsigned bit = 0; ++ ++ tags->ecc = 0; ++ ++ for (i = 0; i < 8; i++) { ++ for (j = 1; j & 0xff; j <<= 1) { ++ bit++; ++ if (b[i] & j) ++ ecc ^= bit; ++ } ++ } ++ tags->ecc = ecc; ++} ++ ++int yaffs_check_tags_ecc(struct yaffs_tags *tags) ++{ ++ unsigned ecc = tags->ecc; ++ ++ yaffs_calc_tags_ecc(tags); ++ ++ ecc ^= tags->ecc; ++ ++ if (ecc && ecc <= 64) { ++ /* TODO: Handle the failure better. Retire? */ ++ unsigned char *b = ((union yaffs_tags_union *)tags)->as_bytes; ++ ++ ecc--; ++ ++ b[ecc / 8] ^= (1 << (ecc & 7)); ++ ++ /* Now recvalc the ecc */ ++ yaffs_calc_tags_ecc(tags); ++ ++ return 1; /* recovered error */ ++ } else if (ecc) { ++ /* Wierd ecc failure value */ ++ /* TODO Need to do somethiong here */ ++ return -1; /* unrecovered error */ ++ } ++ return 0; ++} ++ ++/********** Tags **********/ ++ ++static void yaffs_load_tags_to_spare(struct yaffs_spare *spare_ptr, ++ struct yaffs_tags *tags_ptr) ++{ ++ union yaffs_tags_union *tu = (union yaffs_tags_union *)tags_ptr; ++ ++ yaffs_calc_tags_ecc(tags_ptr); ++ ++ spare_ptr->tb0 = tu->as_bytes[0]; ++ spare_ptr->tb1 = tu->as_bytes[1]; ++ spare_ptr->tb2 = tu->as_bytes[2]; ++ spare_ptr->tb3 = tu->as_bytes[3]; ++ spare_ptr->tb4 = tu->as_bytes[4]; ++ spare_ptr->tb5 = tu->as_bytes[5]; ++ spare_ptr->tb6 = tu->as_bytes[6]; ++ spare_ptr->tb7 = tu->as_bytes[7]; ++} ++ ++static void yaffs_get_tags_from_spare(struct yaffs_dev *dev, ++ struct yaffs_spare *spare_ptr, ++ struct yaffs_tags *tags_ptr) ++{ ++ union yaffs_tags_union *tu = (union yaffs_tags_union *)tags_ptr; ++ int result; ++ ++ tu->as_bytes[0] = spare_ptr->tb0; ++ tu->as_bytes[1] = spare_ptr->tb1; ++ tu->as_bytes[2] = spare_ptr->tb2; ++ tu->as_bytes[3] = spare_ptr->tb3; ++ tu->as_bytes[4] = spare_ptr->tb4; ++ tu->as_bytes[5] = spare_ptr->tb5; ++ tu->as_bytes[6] = spare_ptr->tb6; ++ tu->as_bytes[7] = spare_ptr->tb7; ++ ++ result = yaffs_check_tags_ecc(tags_ptr); ++ if (result > 0) ++ dev->n_tags_ecc_fixed++; ++ else if (result < 0) ++ dev->n_tags_ecc_unfixed++; ++} ++ ++static void yaffs_spare_init(struct yaffs_spare *spare) ++{ ++ memset(spare, 0xff, sizeof(struct yaffs_spare)); ++} ++ ++static int yaffs_wr_nand(struct yaffs_dev *dev, ++ int nand_chunk, const u8 *data, ++ struct yaffs_spare *spare) ++{ ++ int data_size = dev->data_bytes_per_chunk; ++ ++ return dev->drv.drv_write_chunk_fn(dev, nand_chunk, ++ data, data_size, ++ (u8 *) spare, sizeof(*spare)); ++} ++ ++static int yaffs_rd_chunk_nand(struct yaffs_dev *dev, ++ int nand_chunk, ++ u8 *data, ++ struct yaffs_spare *spare, ++ enum yaffs_ecc_result *ecc_result, ++ int correct_errors) ++{ ++ int ret_val; ++ struct yaffs_spare local_spare; ++ int data_size; ++ int spare_size; ++ int ecc_result1, ecc_result2; ++ u8 calc_ecc[3]; ++ ++ if (!spare) { ++ /* If we don't have a real spare, then we use a local one. */ ++ /* Need this for the calculation of the ecc */ ++ spare = &local_spare; ++ } ++ data_size = dev->data_bytes_per_chunk; ++ spare_size = sizeof(struct yaffs_spare); ++ ++ if (dev->param.use_nand_ecc) ++ return dev->drv.drv_read_chunk_fn(dev, nand_chunk, ++ data, data_size, ++ (u8 *) spare, spare_size, ++ ecc_result); ++ ++ ++ /* Handle the ECC at this level. */ ++ ++ ret_val = dev->drv.drv_read_chunk_fn(dev, nand_chunk, ++ data, data_size, ++ (u8 *)spare, spare_size, ++ NULL); ++ if (!data || !correct_errors) ++ return ret_val; ++ ++ /* Do ECC correction if needed. */ ++ yaffs_ecc_calc(data, calc_ecc); ++ ecc_result1 = yaffs_ecc_correct(data, spare->ecc1, calc_ecc); ++ yaffs_ecc_calc(&data[256], calc_ecc); ++ ecc_result2 = yaffs_ecc_correct(&data[256], spare->ecc2, calc_ecc); ++ ++ if (ecc_result1 > 0) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>>yaffs ecc error fix performed on chunk %d:0", ++ nand_chunk); ++ dev->n_ecc_fixed++; ++ } else if (ecc_result1 < 0) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>>yaffs ecc error unfixed on chunk %d:0", ++ nand_chunk); ++ dev->n_ecc_unfixed++; ++ } ++ ++ if (ecc_result2 > 0) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>>yaffs ecc error fix performed on chunk %d:1", ++ nand_chunk); ++ dev->n_ecc_fixed++; ++ } else if (ecc_result2 < 0) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "**>>yaffs ecc error unfixed on chunk %d:1", ++ nand_chunk); ++ dev->n_ecc_unfixed++; ++ } ++ ++ if (ecc_result1 || ecc_result2) { ++ /* We had a data problem on this page */ ++ yaffs_handle_rd_data_error(dev, nand_chunk); ++ } ++ ++ if (ecc_result1 < 0 || ecc_result2 < 0) ++ *ecc_result = YAFFS_ECC_RESULT_UNFIXED; ++ else if (ecc_result1 > 0 || ecc_result2 > 0) ++ *ecc_result = YAFFS_ECC_RESULT_FIXED; ++ else ++ *ecc_result = YAFFS_ECC_RESULT_NO_ERROR; ++ ++ return ret_val; ++} ++ ++/* ++ * Functions for robustisizing ++ */ ++ ++static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk) ++{ ++ int flash_block = nand_chunk / dev->param.chunks_per_block; ++ ++ /* Mark the block for retirement */ ++ yaffs_get_block_info(dev, flash_block + dev->block_offset)-> ++ needs_retiring = 1; ++ yaffs_trace(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, ++ "**>>Block %d marked for retirement", ++ flash_block); ++ ++ /* TODO: ++ * Just do a garbage collection on the affected block ++ * then retire the block ++ * NB recursion ++ */ ++} ++ ++static int yaffs_tags_compat_wr(struct yaffs_dev *dev, ++ int nand_chunk, ++ const u8 *data, const struct yaffs_ext_tags *ext_tags) ++{ ++ struct yaffs_spare spare; ++ struct yaffs_tags tags; ++ ++ yaffs_spare_init(&spare); ++ ++ if (ext_tags->is_deleted) ++ spare.page_status = 0; ++ else { ++ tags.obj_id = ext_tags->obj_id; ++ tags.chunk_id = ext_tags->chunk_id; ++ ++ tags.n_bytes_lsb = ext_tags->n_bytes & (1024 - 1); ++ ++ if (dev->data_bytes_per_chunk >= 1024) ++ tags.n_bytes_msb = (ext_tags->n_bytes >> 10) & 3; ++ else ++ tags.n_bytes_msb = 3; ++ ++ tags.serial_number = ext_tags->serial_number; ++ ++ if (!dev->param.use_nand_ecc && data) { ++ yaffs_ecc_calc(data, spare.ecc1); ++ yaffs_ecc_calc(&data[256], spare.ecc2); ++ } ++ ++ yaffs_load_tags_to_spare(&spare, &tags); ++ } ++ return yaffs_wr_nand(dev, nand_chunk, data, &spare); ++} ++ ++static int yaffs_tags_compat_rd(struct yaffs_dev *dev, ++ int nand_chunk, ++ u8 *data, struct yaffs_ext_tags *ext_tags) ++{ ++ struct yaffs_spare spare; ++ struct yaffs_tags tags; ++ enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN; ++ static struct yaffs_spare spare_ff; ++ static int init; ++ int deleted; ++ ++ if (!init) { ++ memset(&spare_ff, 0xff, sizeof(spare_ff)); ++ init = 1; ++ } ++ ++ if (!yaffs_rd_chunk_nand(dev, nand_chunk, ++ data, &spare, &ecc_result, 1)) ++ return YAFFS_FAIL; ++ ++ /* ext_tags may be NULL */ ++ if (!ext_tags) ++ return YAFFS_OK; ++ ++ deleted = (hweight8(spare.page_status) < 7) ? 1 : 0; ++ ++ ext_tags->is_deleted = deleted; ++ ext_tags->ecc_result = ecc_result; ++ ext_tags->block_bad = 0; /* We're reading it */ ++ /* therefore it is not a bad block */ ++ ext_tags->chunk_used = ++ memcmp(&spare_ff, &spare, sizeof(spare_ff)) ? 1 : 0; ++ ++ if (ext_tags->chunk_used) { ++ yaffs_get_tags_from_spare(dev, &spare, &tags); ++ ext_tags->obj_id = tags.obj_id; ++ ext_tags->chunk_id = tags.chunk_id; ++ ext_tags->n_bytes = tags.n_bytes_lsb; ++ ++ if (dev->data_bytes_per_chunk >= 1024) ++ ext_tags->n_bytes |= ++ (((unsigned)tags.n_bytes_msb) << 10); ++ ++ ext_tags->serial_number = tags.serial_number; ++ } ++ ++ return YAFFS_OK; ++} ++ ++static int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int flash_block) ++{ ++ struct yaffs_spare spare; ++ ++ memset(&spare, 0xff, sizeof(struct yaffs_spare)); ++ ++ spare.block_status = 'Y'; ++ ++ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL, ++ &spare); ++ yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1, ++ NULL, &spare); ++ ++ return YAFFS_OK; ++} ++ ++static int yaffs_tags_compat_query_block(struct yaffs_dev *dev, ++ int block_no, ++ enum yaffs_block_state *state, ++ u32 *seq_number) ++{ ++ struct yaffs_spare spare0, spare1; ++ static struct yaffs_spare spare_ff; ++ static int init; ++ enum yaffs_ecc_result dummy; ++ ++ if (!init) { ++ memset(&spare_ff, 0xff, sizeof(spare_ff)); ++ init = 1; ++ } ++ ++ *seq_number = 0; ++ ++ /* Look for bad block markers in the first two chunks */ ++ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, ++ NULL, &spare0, &dummy, 0); ++ yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1, ++ NULL, &spare1, &dummy, 0); ++ ++ if (hweight8(spare0.block_status & spare1.block_status) < 7) ++ *state = YAFFS_BLOCK_STATE_DEAD; ++ else if (memcmp(&spare_ff, &spare0, sizeof(spare_ff)) == 0) ++ *state = YAFFS_BLOCK_STATE_EMPTY; ++ else ++ *state = YAFFS_BLOCK_STATE_NEEDS_SCAN; ++ ++ return YAFFS_OK; ++} ++ ++void yaffs_tags_compat_install(struct yaffs_dev *dev) ++{ ++ if(dev->param.is_yaffs2) ++ return; ++ if(!dev->tagger.write_chunk_tags_fn) ++ dev->tagger.write_chunk_tags_fn = yaffs_tags_compat_wr; ++ if(!dev->tagger.read_chunk_tags_fn) ++ dev->tagger.read_chunk_tags_fn = yaffs_tags_compat_rd; ++ if(!dev->tagger.query_block_fn) ++ dev->tagger.query_block_fn = yaffs_tags_compat_query_block; ++ if(!dev->tagger.mark_bad_fn) ++ dev->tagger.mark_bad_fn = yaffs_tags_compat_mark_bad; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.h linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagscompat.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_tagscompat.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,44 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_TAGSCOMPAT_H__ ++#define __YAFFS_TAGSCOMPAT_H__ ++ ++ ++#include "yaffs_guts.h" ++ ++#if 0 ++ ++ ++int yaffs_tags_compat_wr(struct yaffs_dev *dev, ++ int nand_chunk, ++ const u8 *data, const struct yaffs_ext_tags *tags); ++int yaffs_tags_compat_rd(struct yaffs_dev *dev, ++ int nand_chunk, ++ u8 *data, struct yaffs_ext_tags *tags); ++int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int block_no); ++int yaffs_tags_compat_query_block(struct yaffs_dev *dev, ++ int block_no, ++ enum yaffs_block_state *state, ++ u32 *seq_number); ++ ++#endif ++ ++ ++void yaffs_tags_compat_install(struct yaffs_dev *dev); ++void yaffs_calc_tags_ecc(struct yaffs_tags *tags); ++int yaffs_check_tags_ecc(struct yaffs_tags *tags); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.c linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,199 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++#include "yaffs_packedtags2.h" ++ ++static int yaffs_tags_marshall_write(struct yaffs_dev *dev, ++ int nand_chunk, const u8 *data, ++ const struct yaffs_ext_tags *tags) ++{ ++ struct yaffs_packed_tags2 pt; ++ int retval; ++ ++ int packed_tags_size = ++ dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); ++ void *packed_tags_ptr = ++ dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt; ++ ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "yaffs_tags_marshall_write chunk %d data %p tags %p", ++ nand_chunk, data, tags); ++ ++ /* For yaffs2 writing there must be both data and tags. ++ * If we're using inband tags, then the tags are stuffed into ++ * the end of the data buffer. ++ */ ++ if (!data || !tags) ++ BUG(); ++ else if (dev->param.inband_tags) { ++ struct yaffs_packed_tags2_tags_only *pt2tp; ++ pt2tp = ++ (struct yaffs_packed_tags2_tags_only *)(data + ++ dev-> ++ data_bytes_per_chunk); ++ yaffs_pack_tags2_tags_only(pt2tp, tags); ++ } else { ++ yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc); ++ } ++ ++ retval = dev->drv.drv_write_chunk_fn(dev, nand_chunk, ++ data, dev->param.total_bytes_per_chunk, ++ (dev->param.inband_tags) ? NULL : packed_tags_ptr, ++ (dev->param.inband_tags) ? 0 : packed_tags_size); ++ ++ return retval; ++} ++ ++static int yaffs_tags_marshall_read(struct yaffs_dev *dev, ++ int nand_chunk, u8 *data, ++ struct yaffs_ext_tags *tags) ++{ ++ int retval = 0; ++ int local_data = 0; ++ u8 spare_buffer[100]; ++ enum yaffs_ecc_result ecc_result; ++ ++ struct yaffs_packed_tags2 pt; ++ ++ int packed_tags_size = ++ dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); ++ void *packed_tags_ptr = ++ dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt; ++ ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "yaffs_tags_marshall_read chunk %d data %p tags %p", ++ nand_chunk, data, tags); ++ ++ if (dev->param.inband_tags) { ++ if (!data) { ++ local_data = 1; ++ data = yaffs_get_temp_buffer(dev); ++ } ++ } ++ ++ if (dev->param.inband_tags || (data && !tags)) ++ retval = dev->drv.drv_read_chunk_fn(dev, nand_chunk, ++ data, dev->param.total_bytes_per_chunk, ++ NULL, 0, ++ &ecc_result); ++ else if (tags) ++ retval = dev->drv.drv_read_chunk_fn(dev, nand_chunk, ++ data, dev->param.total_bytes_per_chunk, ++ spare_buffer, packed_tags_size, ++ &ecc_result); ++ else ++ BUG(); ++ ++ ++ if (dev->param.inband_tags) { ++ if (tags) { ++ struct yaffs_packed_tags2_tags_only *pt2tp; ++ pt2tp = ++ (struct yaffs_packed_tags2_tags_only *) ++ &data[dev->data_bytes_per_chunk]; ++ yaffs_unpack_tags2_tags_only(tags, pt2tp); ++ } ++ } else if (tags) { ++ memcpy(packed_tags_ptr, spare_buffer, packed_tags_size); ++ yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); ++ } ++ ++ if (local_data) ++ yaffs_release_temp_buffer(dev, data); ++ ++ if (tags && ecc_result == YAFFS_ECC_RESULT_UNFIXED) { ++ tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED; ++ dev->n_ecc_unfixed++; ++ } ++ ++ if (tags && ecc_result == -YAFFS_ECC_RESULT_FIXED) { ++ if (tags->ecc_result <= YAFFS_ECC_RESULT_NO_ERROR) ++ tags->ecc_result = YAFFS_ECC_RESULT_FIXED; ++ dev->n_ecc_fixed++; ++ } ++ ++ if (ecc_result < YAFFS_ECC_RESULT_UNFIXED) ++ return YAFFS_OK; ++ else ++ return YAFFS_FAIL; ++} ++ ++static int yaffs_tags_marshall_query_block(struct yaffs_dev *dev, int block_no, ++ enum yaffs_block_state *state, ++ u32 *seq_number) ++{ ++ int retval; ++ ++ yaffs_trace(YAFFS_TRACE_MTD, "yaffs_tags_marshall_query_block %d", ++ block_no); ++ ++ retval = dev->drv.drv_check_bad_fn(dev, block_no); ++ ++ if (retval== YAFFS_FAIL) { ++ yaffs_trace(YAFFS_TRACE_MTD, "block is bad"); ++ ++ *state = YAFFS_BLOCK_STATE_DEAD; ++ *seq_number = 0; ++ } else { ++ struct yaffs_ext_tags t; ++ ++ yaffs_tags_marshall_read(dev, ++ block_no * dev->param.chunks_per_block, ++ NULL, &t); ++ ++ if (t.chunk_used) { ++ *seq_number = t.seq_number; ++ *state = YAFFS_BLOCK_STATE_NEEDS_SCAN; ++ } else { ++ *seq_number = 0; ++ *state = YAFFS_BLOCK_STATE_EMPTY; ++ } ++ } ++ ++ yaffs_trace(YAFFS_TRACE_MTD, ++ "block query returns seq %d state %d", ++ *seq_number, *state); ++ ++ if (retval == 0) ++ return YAFFS_OK; ++ else ++ return YAFFS_FAIL; ++} ++ ++static int yaffs_tags_marshall_mark_bad(struct yaffs_dev *dev, int block_no) ++{ ++ return dev->drv.drv_mark_bad_fn(dev, block_no); ++ ++} ++ ++ ++void yaffs_tags_marshall_install(struct yaffs_dev *dev) ++{ ++ if (!dev->param.is_yaffs2) ++ return; ++ ++ if (!dev->tagger.write_chunk_tags_fn) ++ dev->tagger.write_chunk_tags_fn = yaffs_tags_marshall_write; ++ ++ if (!dev->tagger.read_chunk_tags_fn) ++ dev->tagger.read_chunk_tags_fn = yaffs_tags_marshall_read; ++ ++ if (!dev->tagger.query_block_fn) ++ dev->tagger.query_block_fn = yaffs_tags_marshall_query_block; ++ ++ if (!dev->tagger.mark_bad_fn) ++ dev->tagger.mark_bad_fn = yaffs_tags_marshall_mark_bad; ++ ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.h linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_tagsmarshall.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_tagsmarshall.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,22 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_TAGSMARSHALL_H__ ++#define __YAFFS_TAGSMARSHALL_H__ ++ ++#include "yaffs_guts.h" ++void yaffs_tags_marshall_install(struct yaffs_dev *dev); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_trace.h linux-3.15-rc5/fs/yaffs2/yaffs_trace.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_trace.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_trace.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,57 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YTRACE_H__ ++#define __YTRACE_H__ ++ ++extern unsigned int yaffs_trace_mask; ++extern unsigned int yaffs_wr_attempts; ++ ++/* ++ * Tracing flags. ++ * The flags masked in YAFFS_TRACE_ALWAYS are always traced. ++ */ ++ ++#define YAFFS_TRACE_OS 0x00000002 ++#define YAFFS_TRACE_ALLOCATE 0x00000004 ++#define YAFFS_TRACE_SCAN 0x00000008 ++#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 ++#define YAFFS_TRACE_ERASE 0x00000020 ++#define YAFFS_TRACE_GC 0x00000040 ++#define YAFFS_TRACE_WRITE 0x00000080 ++#define YAFFS_TRACE_TRACING 0x00000100 ++#define YAFFS_TRACE_DELETION 0x00000200 ++#define YAFFS_TRACE_BUFFERS 0x00000400 ++#define YAFFS_TRACE_NANDACCESS 0x00000800 ++#define YAFFS_TRACE_GC_DETAIL 0x00001000 ++#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 ++#define YAFFS_TRACE_MTD 0x00004000 ++#define YAFFS_TRACE_CHECKPOINT 0x00008000 ++ ++#define YAFFS_TRACE_VERIFY 0x00010000 ++#define YAFFS_TRACE_VERIFY_NAND 0x00020000 ++#define YAFFS_TRACE_VERIFY_FULL 0x00040000 ++#define YAFFS_TRACE_VERIFY_ALL 0x000f0000 ++ ++#define YAFFS_TRACE_SYNC 0x00100000 ++#define YAFFS_TRACE_BACKGROUND 0x00200000 ++#define YAFFS_TRACE_LOCK 0x00400000 ++#define YAFFS_TRACE_MOUNT 0x00800000 ++ ++#define YAFFS_TRACE_ERROR 0x40000000 ++#define YAFFS_TRACE_BUG 0x80000000 ++#define YAFFS_TRACE_ALWAYS 0xf0000000 ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.c linux-3.15-rc5/fs/yaffs2/yaffs_verify.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_verify.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,529 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_verify.h" ++#include "yaffs_trace.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_nand.h" ++ ++int yaffs_skip_verification(struct yaffs_dev *dev) ++{ ++ (void) dev; ++ return !(yaffs_trace_mask & ++ (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); ++} ++ ++static int yaffs_skip_full_verification(struct yaffs_dev *dev) ++{ ++ (void) dev; ++ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_FULL)); ++} ++ ++static int yaffs_skip_nand_verification(struct yaffs_dev *dev) ++{ ++ (void) dev; ++ return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_NAND)); ++} ++ ++static const char * const block_state_name[] = { ++ "Unknown", ++ "Needs scan", ++ "Scanning", ++ "Empty", ++ "Allocating", ++ "Full", ++ "Dirty", ++ "Checkpoint", ++ "Collecting", ++ "Dead" ++}; ++ ++void yaffs_verify_blk(struct yaffs_dev *dev, struct yaffs_block_info *bi, int n) ++{ ++ int actually_used; ++ int in_use; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ /* Report illegal runtime states */ ++ if (bi->block_state >= YAFFS_NUMBER_OF_BLOCK_STATES) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Block %d has undefined state %d", ++ n, bi->block_state); ++ ++ switch (bi->block_state) { ++ case YAFFS_BLOCK_STATE_UNKNOWN: ++ case YAFFS_BLOCK_STATE_SCANNING: ++ case YAFFS_BLOCK_STATE_NEEDS_SCAN: ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Block %d has bad run-state %s", ++ n, block_state_name[bi->block_state]); ++ } ++ ++ /* Check pages in use and soft deletions are legal */ ++ ++ actually_used = bi->pages_in_use - bi->soft_del_pages; ++ ++ if (bi->pages_in_use < 0 || ++ bi->pages_in_use > dev->param.chunks_per_block || ++ bi->soft_del_pages < 0 || ++ bi->soft_del_pages > dev->param.chunks_per_block || ++ actually_used < 0 || actually_used > dev->param.chunks_per_block) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Block %d has illegal values pages_in_used %d soft_del_pages %d", ++ n, bi->pages_in_use, bi->soft_del_pages); ++ ++ /* Check chunk bitmap legal */ ++ in_use = yaffs_count_chunk_bits(dev, n); ++ if (in_use != bi->pages_in_use) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Block %d has inconsistent values pages_in_use %d counted chunk bits %d", ++ n, bi->pages_in_use, in_use); ++} ++ ++void yaffs_verify_collected_blk(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi, int n) ++{ ++ yaffs_verify_blk(dev, bi, n); ++ ++ /* After collection the block should be in the erased state */ ++ ++ if (bi->block_state != YAFFS_BLOCK_STATE_COLLECTING && ++ bi->block_state != YAFFS_BLOCK_STATE_EMPTY) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "Block %d is in state %d after gc, should be erased", ++ n, bi->block_state); ++ } ++} ++ ++void yaffs_verify_blocks(struct yaffs_dev *dev) ++{ ++ int i; ++ int state_count[YAFFS_NUMBER_OF_BLOCK_STATES]; ++ int illegal_states = 0; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ memset(state_count, 0, sizeof(state_count)); ++ ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ struct yaffs_block_info *bi = yaffs_get_block_info(dev, i); ++ yaffs_verify_blk(dev, bi, i); ++ ++ if (bi->block_state < YAFFS_NUMBER_OF_BLOCK_STATES) ++ state_count[bi->block_state]++; ++ else ++ illegal_states++; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_VERIFY, "Block summary"); ++ ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "%d blocks have illegal states", ++ illegal_states); ++ if (state_count[YAFFS_BLOCK_STATE_ALLOCATING] > 1) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Too many allocating blocks"); ++ ++ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "%s %d blocks", ++ block_state_name[i], state_count[i]); ++ ++ if (dev->blocks_in_checkpt != state_count[YAFFS_BLOCK_STATE_CHECKPOINT]) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Checkpoint block count wrong dev %d count %d", ++ dev->blocks_in_checkpt, ++ state_count[YAFFS_BLOCK_STATE_CHECKPOINT]); ++ ++ if (dev->n_erased_blocks != state_count[YAFFS_BLOCK_STATE_EMPTY]) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Erased block count wrong dev %d count %d", ++ dev->n_erased_blocks, ++ state_count[YAFFS_BLOCK_STATE_EMPTY]); ++ ++ if (state_count[YAFFS_BLOCK_STATE_COLLECTING] > 1) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Too many collecting blocks %d (max is 1)", ++ state_count[YAFFS_BLOCK_STATE_COLLECTING]); ++} ++ ++/* ++ * Verify the object header. oh must be valid, but obj and tags may be NULL in ++ * which case those tests will not be performed. ++ */ ++void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh, ++ struct yaffs_ext_tags *tags, int parent_check) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ if (!(tags && obj && oh)) { ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Verifying object header tags %p obj %p oh %p", ++ tags, obj, oh); ++ return; ++ } ++ ++ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || ++ oh->type > YAFFS_OBJECT_TYPE_MAX) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d header type is illegal value 0x%x", ++ tags->obj_id, oh->type); ++ ++ if (tags->obj_id != obj->obj_id) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d header mismatch obj_id %d", ++ tags->obj_id, obj->obj_id); ++ ++ /* ++ * Check that the object's parent ids match if parent_check requested. ++ * ++ * Tests do not apply to the root object. ++ */ ++ ++ if (parent_check && tags->obj_id > 1 && !obj->parent) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d header mismatch parent_id %d obj->parent is NULL", ++ tags->obj_id, oh->parent_obj_id); ++ ++ if (parent_check && obj->parent && ++ oh->parent_obj_id != obj->parent->obj_id && ++ (oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED || ++ obj->parent->obj_id != YAFFS_OBJECTID_DELETED)) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d header mismatch parent_id %d parent_obj_id %d", ++ tags->obj_id, oh->parent_obj_id, ++ obj->parent->obj_id); ++ ++ if (tags->obj_id > 1 && oh->name[0] == 0) /* Null name */ ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d header name is NULL", ++ obj->obj_id); ++ ++ if (tags->obj_id > 1 && ((u8) (oh->name[0])) == 0xff) /* Junk name */ ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d header name is 0xff", ++ obj->obj_id); ++} ++ ++void yaffs_verify_file(struct yaffs_obj *obj) ++{ ++ u32 x; ++ int required_depth; ++ int actual_depth; ++ int last_chunk; ++ u32 offset_in_chunk; ++ u32 the_chunk; ++ ++ u32 i; ++ struct yaffs_dev *dev; ++ struct yaffs_ext_tags tags; ++ struct yaffs_tnode *tn; ++ u32 obj_id; ++ ++ if (!obj) ++ return; ++ ++ if (yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ dev = obj->my_dev; ++ obj_id = obj->obj_id; ++ ++ ++ /* Check file size is consistent with tnode depth */ ++ yaffs_addr_to_chunk(dev, obj->variant.file_variant.file_size, ++ &last_chunk, &offset_in_chunk); ++ last_chunk++; ++ x = last_chunk >> YAFFS_TNODES_LEVEL0_BITS; ++ required_depth = 0; ++ while (x > 0) { ++ x >>= YAFFS_TNODES_INTERNAL_BITS; ++ required_depth++; ++ } ++ ++ actual_depth = obj->variant.file_variant.top_level; ++ ++ /* Check that the chunks in the tnode tree are all correct. ++ * We do this by scanning through the tnode tree and ++ * checking the tags for every chunk match. ++ */ ++ ++ if (yaffs_skip_nand_verification(dev)) ++ return; ++ ++ for (i = 1; i <= last_chunk; i++) { ++ tn = yaffs_find_tnode_0(dev, &obj->variant.file_variant, i); ++ ++ if (!tn) ++ continue; ++ ++ the_chunk = yaffs_get_group_base(dev, tn, i); ++ if (the_chunk > 0) { ++ yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL, ++ &tags); ++ if (tags.obj_id != obj_id || tags.chunk_id != i) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)", ++ obj_id, i, the_chunk, ++ tags.obj_id, tags.chunk_id); ++ } ++ } ++} ++ ++void yaffs_verify_link(struct yaffs_obj *obj) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ /* Verify sane equivalent object */ ++} ++ ++void yaffs_verify_symlink(struct yaffs_obj *obj) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ /* Verify symlink string */ ++} ++ ++void yaffs_verify_special(struct yaffs_obj *obj) ++{ ++ if (obj && yaffs_skip_verification(obj->my_dev)) ++ return; ++} ++ ++void yaffs_verify_obj(struct yaffs_obj *obj) ++{ ++ struct yaffs_dev *dev; ++ u32 chunk_min; ++ u32 chunk_max; ++ u32 chunk_id_ok; ++ u32 chunk_in_range; ++ u32 chunk_wrongly_deleted; ++ u32 chunk_valid; ++ ++ if (!obj) ++ return; ++ ++ if (obj->being_created) ++ return; ++ ++ dev = obj->my_dev; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ /* Check sane object header chunk */ ++ ++ chunk_min = dev->internal_start_block * dev->param.chunks_per_block; ++ chunk_max = ++ (dev->internal_end_block + 1) * dev->param.chunks_per_block - 1; ++ ++ chunk_in_range = (((unsigned)(obj->hdr_chunk)) >= chunk_min && ++ ((unsigned)(obj->hdr_chunk)) <= chunk_max); ++ chunk_id_ok = chunk_in_range || (obj->hdr_chunk == 0); ++ chunk_valid = chunk_in_range && ++ yaffs_check_chunk_bit(dev, ++ obj->hdr_chunk / dev->param.chunks_per_block, ++ obj->hdr_chunk % dev->param.chunks_per_block); ++ chunk_wrongly_deleted = chunk_in_range && !chunk_valid; ++ ++ if (!obj->fake && (!chunk_id_ok || chunk_wrongly_deleted)) ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d has chunk_id %d %s %s", ++ obj->obj_id, obj->hdr_chunk, ++ chunk_id_ok ? "" : ",out of range", ++ chunk_wrongly_deleted ? ",marked as deleted" : ""); ++ ++ if (chunk_valid && !yaffs_skip_nand_verification(dev)) { ++ struct yaffs_ext_tags tags; ++ struct yaffs_obj_hdr *oh; ++ u8 *buffer = yaffs_get_temp_buffer(dev); ++ ++ oh = (struct yaffs_obj_hdr *)buffer; ++ ++ yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, buffer, &tags); ++ ++ yaffs_verify_oh(obj, oh, &tags, 1); ++ ++ yaffs_release_temp_buffer(dev, buffer); ++ } ++ ++ /* Verify it has a parent */ ++ if (obj && !obj->fake && (!obj->parent || obj->parent->my_dev != dev)) { ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d has parent pointer %p which does not look like an object", ++ obj->obj_id, obj->parent); ++ } ++ ++ /* Verify parent is a directory */ ++ if (obj->parent && ++ obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d's parent is not a directory (type %d)", ++ obj->obj_id, obj->parent->variant_type); ++ } ++ ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ yaffs_verify_file(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ yaffs_verify_symlink(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ yaffs_verify_dir(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ yaffs_verify_link(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ yaffs_verify_special(obj); ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ default: ++ yaffs_trace(YAFFS_TRACE_VERIFY, ++ "Obj %d has illegaltype %d", ++ obj->obj_id, obj->variant_type); ++ break; ++ } ++} ++ ++void yaffs_verify_objects(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj; ++ int i; ++ struct list_head *lh; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ list_for_each(lh, &dev->obj_bucket[i].list) { ++ obj = list_entry(lh, struct yaffs_obj, hash_link); ++ yaffs_verify_obj(obj); ++ } ++ } ++} ++ ++void yaffs_verify_obj_in_dir(struct yaffs_obj *obj) ++{ ++ struct list_head *lh; ++ struct yaffs_obj *list_obj; ++ int count = 0; ++ ++ if (!obj) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "No object to verify"); ++ BUG(); ++ return; ++ } ++ ++ if (yaffs_skip_verification(obj->my_dev)) ++ return; ++ ++ if (!obj->parent) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "Object does not have parent"); ++ BUG(); ++ return; ++ } ++ ++ if (obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "Parent is not directory"); ++ BUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ list_for_each(lh, &obj->parent->variant.dir_variant.children) { ++ list_obj = list_entry(lh, struct yaffs_obj, siblings); ++ yaffs_verify_obj(list_obj); ++ if (obj == list_obj) ++ count++; ++ } ++ ++ if (count != 1) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "Object in directory %d times", ++ count); ++ BUG(); ++ } ++} ++ ++void yaffs_verify_dir(struct yaffs_obj *directory) ++{ ++ struct list_head *lh; ++ struct yaffs_obj *list_obj; ++ ++ if (!directory) { ++ BUG(); ++ return; ++ } ++ ++ if (yaffs_skip_full_verification(directory->my_dev)) ++ return; ++ ++ if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "Directory has wrong type: %d", ++ directory->variant_type); ++ BUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ list_for_each(lh, &directory->variant.dir_variant.children) { ++ list_obj = list_entry(lh, struct yaffs_obj, siblings); ++ if (list_obj->parent != directory) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "Object in directory list has wrong parent %p", ++ list_obj->parent); ++ BUG(); ++ } ++ yaffs_verify_obj_in_dir(list_obj); ++ } ++} ++ ++static int yaffs_free_verification_failures; ++ ++void yaffs_verify_free_chunks(struct yaffs_dev *dev) ++{ ++ int counted; ++ int difference; ++ ++ if (yaffs_skip_verification(dev)) ++ return; ++ ++ counted = yaffs_count_free_chunks(dev); ++ ++ difference = dev->n_free_chunks - counted; ++ ++ if (difference) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "Freechunks verification failure %d %d %d", ++ dev->n_free_chunks, counted, difference); ++ yaffs_free_verification_failures++; ++ } ++} ++ ++int yaffs_verify_file_sane(struct yaffs_obj *in) ++{ ++ (void) in; ++ return YAFFS_OK; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.h linux-3.15-rc5/fs/yaffs2/yaffs_verify.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_verify.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_verify.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,43 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_VERIFY_H__ ++#define __YAFFS_VERIFY_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_verify_blk(struct yaffs_dev *dev, struct yaffs_block_info *bi, ++ int n); ++void yaffs_verify_collected_blk(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi, int n); ++void yaffs_verify_blocks(struct yaffs_dev *dev); ++ ++void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh, ++ struct yaffs_ext_tags *tags, int parent_check); ++void yaffs_verify_file(struct yaffs_obj *obj); ++void yaffs_verify_link(struct yaffs_obj *obj); ++void yaffs_verify_symlink(struct yaffs_obj *obj); ++void yaffs_verify_special(struct yaffs_obj *obj); ++void yaffs_verify_obj(struct yaffs_obj *obj); ++void yaffs_verify_objects(struct yaffs_dev *dev); ++void yaffs_verify_obj_in_dir(struct yaffs_obj *obj); ++void yaffs_verify_dir(struct yaffs_obj *directory); ++void yaffs_verify_free_chunks(struct yaffs_dev *dev); ++ ++int yaffs_verify_file_sane(struct yaffs_obj *obj); ++ ++int yaffs_skip_verification(struct yaffs_dev *dev); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_vfs.c linux-3.15-rc5/fs/yaffs2/yaffs_vfs.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_vfs.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_vfs.c 2014-05-17 02:52:54.000000000 +0200 +@@ -0,0 +1,3604 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * Acknowledgements: ++ * Luc van OostenRyck for numerous patches. ++ * Nick Bane for numerous patches. ++ * Nick Bane for 2.5/2.6 integration. ++ * Andras Toth for mknod rdev issue. ++ * Michael Fischer for finding the problem with inode inconsistency. ++ * Some code bodily lifted from JFFS ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++/* ++ * ++ * This is the file system front-end to YAFFS that hooks it up to ++ * the VFS. ++ * ++ * Special notes: ++ * >> 2.4: sb->u.generic_sbp points to the struct yaffs_dev associated with ++ * this superblock ++ * >> 2.6: sb->s_fs_info points to the struct yaffs_dev associated with this ++ * superblock ++ * >> inode->u.generic_ip points to the associated struct yaffs_obj. ++ */ ++ ++/* ++ * There are two variants of the VFS glue code. This variant should compile ++ * for any version of Linux. ++ */ ++#include ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10)) ++#define YAFFS_COMPILE_BACKGROUND ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 23)) ++#define YAFFS_COMPILE_FREEZER ++#endif ++#endif ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)) ++#define YAFFS_COMPILE_EXPORTFS ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) ++#define YAFFS_USE_SETATTR_COPY ++#define YAFFS_USE_TRUNCATE_SETSIZE ++#endif ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) ++#define YAFFS_HAS_EVICT_INODE ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++#define YAFFS_NEW_FOLLOW_LINK 1 ++#else ++#define YAFFS_NEW_FOLLOW_LINK 0 ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0)) ++#define YAFFS_HAS_WRITE_SUPER ++#endif ++ ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) ++#include ++#endif ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39)) ++#include ++#endif ++#include ++#include ++#include ++#include ++#include ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++#include ++#endif ++ ++#ifdef YAFFS_COMPILE_EXPORTFS ++#include ++#endif ++ ++#ifdef YAFFS_COMPILE_BACKGROUND ++#include ++#include ++#endif ++#ifdef YAFFS_COMPILE_FREEZER ++#include ++#endif ++ ++#include ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ ++#include ++ ++#define UnlockPage(p) unlock_page(p) ++#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) ++ ++/* FIXME: use sb->s_id instead ? */ ++#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) ++ ++#else ++ ++#include ++#define BDEVNAME_SIZE 0 ++#define yaffs_devname(sb, buf) kdevname(sb->s_dev) ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) ++/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ ++#define __user ++#endif ++ ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) ++#define YPROC_ROOT (&proc_root) ++#else ++#define YPROC_ROOT NULL ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) ++#define Y_INIT_TIMER(a) init_timer(a) ++#else ++#define Y_INIT_TIMER(a) init_timer_on_stack(a) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) ++#define YAFFS_USE_WRITE_BEGIN_END 1 ++#else ++#define YAFFS_USE_WRITE_BEGIN_END 0 ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0)) ++#define YAFFS_SUPER_HAS_DIRTY ++#endif ++ ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)) ++#define set_nlink(inode, count) do { (inode)->i_nlink = (count); } while(0) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) ++static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) ++{ ++ uint64_t result = partition_size; ++ do_div(result, block_size); ++ return (uint32_t) result; ++} ++#else ++#define YCALCBLOCKS(s, b) ((s)/(b)) ++#endif ++ ++#include ++#include ++ ++#include "yportenv.h" ++#include "yaffs_trace.h" ++#include "yaffs_guts.h" ++#include "yaffs_attribs.h" ++ ++#include "yaffs_linux.h" ++ ++#include "yaffs_mtdif.h" ++#include "yaffs_packedtags2.h" ++#include "yaffs_getblockinfo.h" ++ ++unsigned int yaffs_trace_mask = ++ YAFFS_TRACE_BAD_BLOCKS | ++ YAFFS_TRACE_ALWAYS | ++ 0; ++ ++unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; ++unsigned int yaffs_auto_checkpoint = 1; ++unsigned int yaffs_gc_control = 1; ++unsigned int yaffs_bg_enable = 1; ++unsigned int yaffs_auto_select = 1; ++/* Module Parameters */ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++module_param(yaffs_trace_mask, uint, 0644); ++module_param(yaffs_wr_attempts, uint, 0644); ++module_param(yaffs_auto_checkpoint, uint, 0644); ++module_param(yaffs_gc_control, uint, 0644); ++module_param(yaffs_bg_enable, uint, 0644); ++#else ++MODULE_PARM(yaffs_trace_mask, "i"); ++MODULE_PARM(yaffs_wr_attempts, "i"); ++MODULE_PARM(yaffs_auto_checkpoint, "i"); ++MODULE_PARM(yaffs_gc_control, "i"); ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) ++/* use iget and read_inode */ ++#define Y_IGET(sb, inum) iget((sb), (inum)) ++ ++#else ++/* Call local equivalent */ ++#define YAFFS_USE_OWN_IGET ++#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) ++ ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) ++#define yaffs_inode_to_obj_lv(iptr) ((iptr)->i_private) ++#else ++#define yaffs_inode_to_obj_lv(iptr) ((iptr)->u.generic_ip) ++#endif ++ ++#define yaffs_inode_to_obj(iptr) \ ++ ((struct yaffs_obj *)(yaffs_inode_to_obj_lv(iptr))) ++#define yaffs_dentry_to_obj(dptr) yaffs_inode_to_obj((dptr)->d_inode) ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++#define yaffs_super_to_dev(sb) ((struct yaffs_dev *)sb->s_fs_info) ++#else ++#define yaffs_super_to_dev(sb) ((struct yaffs_dev *)sb->u.generic_sbp) ++#endif ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)) ++#define Y_CLEAR_INODE(i) clear_inode(i) ++#else ++#define Y_CLEAR_INODE(i) end_writeback(i) ++#endif ++ ++ ++#define update_dir_time(dir) do {\ ++ (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \ ++ } while (0) ++ ++static void yaffs_fill_inode_from_obj(struct inode *inode, ++ struct yaffs_obj *obj); ++ ++ ++static void yaffs_gross_lock(struct yaffs_dev *dev) ++{ ++ yaffs_trace(YAFFS_TRACE_LOCK, "yaffs locking %p", current); ++ mutex_lock(&(yaffs_dev_to_lc(dev)->gross_lock)); ++ yaffs_trace(YAFFS_TRACE_LOCK, "yaffs locked %p", current); ++} ++ ++static void yaffs_gross_unlock(struct yaffs_dev *dev) ++{ ++ yaffs_trace(YAFFS_TRACE_LOCK, "yaffs unlocking %p", current); ++ mutex_unlock(&(yaffs_dev_to_lc(dev)->gross_lock)); ++} ++ ++ ++static int yaffs_readpage_nolock(struct file *f, struct page *pg) ++{ ++ /* Lifted from jffs2 */ ++ ++ struct yaffs_obj *obj; ++ unsigned char *pg_buf; ++ int ret; ++ loff_t pos = ((loff_t) pg->index) << PAGE_CACHE_SHIFT; ++ struct yaffs_dev *dev; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readpage_nolock at %lld, size %08x", ++ (long long)pos, ++ (unsigned)PAGE_CACHE_SIZE); ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ BUG_ON(!PageLocked(pg)); ++#else ++ if (!PageLocked(pg)) ++ PAGE_BUG(pg); ++#endif ++ ++ pg_buf = kmap(pg); ++ /* FIXME: Can kmap fail? */ ++ ++ yaffs_gross_lock(dev); ++ ++ ret = yaffs_file_rd(obj, pg_buf, pos, PAGE_CACHE_SIZE); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (ret >= 0) ++ ret = 0; ++ ++ if (ret) { ++ ClearPageUptodate(pg); ++ SetPageError(pg); ++ } else { ++ SetPageUptodate(pg); ++ ClearPageError(pg); ++ } ++ ++ flush_dcache_page(pg); ++ kunmap(pg); ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_readpage_nolock done"); ++ return ret; ++} ++ ++static int yaffs_readpage_unlock(struct file *f, struct page *pg) ++{ ++ int ret = yaffs_readpage_nolock(f, pg); ++ UnlockPage(pg); ++ return ret; ++} ++ ++static int yaffs_readpage(struct file *f, struct page *pg) ++{ ++ int ret; ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_readpage"); ++ ret = yaffs_readpage_unlock(f, pg); ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_readpage done"); ++ return ret; ++} ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)) ++#define YCRED_FSUID() from_kuid(&init_user_ns, current_fsuid()) ++#define YCRED_FSGID() from_kgid(&init_user_ns, current_fsgid()) ++#else ++#define YCRED_FSUID() YCRED(current)->fsuid ++#define YCRED_FSGID() YCRED(current)->fsgid ++ ++static inline uid_t i_uid_read(const struct inode *inode) ++{ ++ return inode->i_uid; ++} ++ ++static inline gid_t i_gid_read(const struct inode *inode) ++{ ++ return inode->i_gid; ++} ++ ++static inline void i_uid_write(struct inode *inode, uid_t uid) ++{ ++ inode->i_uid = uid; ++} ++ ++static inline void i_gid_write(struct inode *inode, gid_t gid) ++{ ++ inode->i_gid = gid; ++} ++#endif ++ ++static void yaffs_set_super_dirty_val(struct yaffs_dev *dev, int val) ++{ ++ struct yaffs_linux_context *lc = yaffs_dev_to_lc(dev); ++ ++ if (lc) ++ lc->dirty = val; ++ ++# ifdef YAFFS_SUPER_HAS_DIRTY ++ { ++ struct super_block *sb = lc->super; ++ ++ if (sb) ++ sb->s_dirt = val; ++ } ++#endif ++ ++} ++ ++static void yaffs_set_super_dirty(struct yaffs_dev *dev) ++{ ++ yaffs_set_super_dirty_val(dev, 1); ++} ++ ++static void yaffs_clear_super_dirty(struct yaffs_dev *dev) ++{ ++ yaffs_set_super_dirty_val(dev, 0); ++} ++ ++static int yaffs_check_super_dirty(struct yaffs_dev *dev) ++{ ++ struct yaffs_linux_context *lc = yaffs_dev_to_lc(dev); ++ ++ if (lc && lc->dirty) ++ return 1; ++ ++# ifdef YAFFS_SUPER_HAS_DIRTY ++ { ++ struct super_block *sb = lc->super; ++ ++ if (sb && sb->s_dirt) ++ return 1; ++ } ++#endif ++ return 0; ++ ++} ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_writepage(struct page *page, struct writeback_control *wbc) ++#else ++static int yaffs_writepage(struct page *page) ++#endif ++{ ++ struct yaffs_dev *dev; ++ struct address_space *mapping = page->mapping; ++ struct inode *inode; ++ unsigned long end_index; ++ char *buffer; ++ struct yaffs_obj *obj; ++ int n_written = 0; ++ unsigned n_bytes; ++ loff_t i_size; ++ ++ if (!mapping) ++ BUG(); ++ inode = mapping->host; ++ if (!inode) ++ BUG(); ++ i_size = i_size_read(inode); ++ ++ end_index = i_size >> PAGE_CACHE_SHIFT; ++ ++ if (page->index < end_index) ++ n_bytes = PAGE_CACHE_SIZE; ++ else { ++ n_bytes = i_size & (PAGE_CACHE_SIZE - 1); ++ ++ if (page->index > end_index || !n_bytes) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_writepage at %lld, inode size = %lld!!", ++ ((loff_t)page->index) << PAGE_CACHE_SHIFT, ++ inode->i_size); ++ yaffs_trace(YAFFS_TRACE_OS, ++ " -> don't care!!"); ++ ++ zero_user_segment(page, 0, PAGE_CACHE_SIZE); ++ set_page_writeback(page); ++ unlock_page(page); ++ end_page_writeback(page); ++ return 0; ++ } ++ } ++ ++ if (n_bytes != PAGE_CACHE_SIZE) ++ zero_user_segment(page, n_bytes, PAGE_CACHE_SIZE); ++ ++ get_page(page); ++ ++ buffer = kmap(page); ++ ++ obj = yaffs_inode_to_obj(inode); ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_writepage at %lld, size %08x", ++ ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes); ++ yaffs_trace(YAFFS_TRACE_OS, ++ "writepag0: obj = %lld, ino = %lld", ++ obj->variant.file_variant.file_size, inode->i_size); ++ ++ n_written = yaffs_wr_file(obj, buffer, ++ ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes, 0); ++ ++ yaffs_set_super_dirty(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "writepag1: obj = %lld, ino = %lld", ++ obj->variant.file_variant.file_size, inode->i_size); ++ ++ yaffs_gross_unlock(dev); ++ ++ kunmap(page); ++ set_page_writeback(page); ++ unlock_page(page); ++ end_page_writeback(page); ++ put_page(page); ++ ++ return (n_written == n_bytes) ? 0 : -ENOSPC; ++} ++ ++/* Space holding and freeing is done to ensure we have space available for write_begin/end */ ++/* For now we just assume few parallel writes and check against a small number. */ ++/* Todo: need to do this with a counter to handle parallel reads better */ ++ ++static ssize_t yaffs_hold_space(struct file *f) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ ++ int n_free_chunks; ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ n_free_chunks = yaffs_get_n_free_chunks(dev); ++ ++ yaffs_gross_unlock(dev); ++ ++ return (n_free_chunks > 20) ? 1 : 0; ++} ++ ++static void yaffs_release_space(struct file *f) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_gross_unlock(dev); ++} ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata) ++{ ++ struct page *pg = NULL; ++ pgoff_t index = pos >> PAGE_CACHE_SHIFT; ++ ++ int ret = 0; ++ int space_held = 0; ++ ++ /* Get a page */ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28) ++ pg = grab_cache_page_write_begin(mapping, index, flags); ++#else ++ pg = __grab_cache_page(mapping, index); ++#endif ++ ++ *pagep = pg; ++ if (!pg) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ yaffs_trace(YAFFS_TRACE_OS, ++ "start yaffs_write_begin index %d(%x) uptodate %d", ++ (int)index, (int)index, Page_Uptodate(pg) ? 1 : 0); ++ ++ /* Get fs space */ ++ space_held = yaffs_hold_space(filp); ++ ++ if (!space_held) { ++ ret = -ENOSPC; ++ goto out; ++ } ++ ++ /* Update page if required */ ++ ++ if (!Page_Uptodate(pg)) ++ ret = yaffs_readpage_nolock(filp, pg); ++ ++ if (ret) ++ goto out; ++ ++ /* Happy path return */ ++ yaffs_trace(YAFFS_TRACE_OS, "end yaffs_write_begin - ok"); ++ ++ return 0; ++ ++out: ++ yaffs_trace(YAFFS_TRACE_OS, ++ "end yaffs_write_begin fail returning %d", ret); ++ if (space_held) ++ yaffs_release_space(filp); ++ if (pg) { ++ unlock_page(pg); ++ page_cache_release(pg); ++ } ++ return ret; ++} ++ ++#else ++ ++static int yaffs_prepare_write(struct file *f, struct page *pg, ++ unsigned offset, unsigned to) ++{ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_prepair_write"); ++ ++ if (!Page_Uptodate(pg)) ++ return yaffs_readpage_nolock(f, pg); ++ return 0; ++} ++#endif ++ ++ ++static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, ++ loff_t * pos) ++{ ++ struct yaffs_obj *obj; ++ int n_written; ++ loff_t ipos; ++ struct inode *inode; ++ struct yaffs_dev *dev; ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ ++ if (!obj) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_file_write: hey obj is null!"); ++ return -EINVAL; ++ } ++ ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ inode = f->f_dentry->d_inode; ++ ++ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) ++ ipos = inode->i_size; ++ else ++ ipos = *pos; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_file_write about to write writing %u(%x) bytes to object %d at %lld", ++ (unsigned)n, (unsigned)n, obj->obj_id, ipos); ++ ++ n_written = yaffs_wr_file(obj, buf, ipos, n, 0); ++ ++ yaffs_set_super_dirty(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_file_write: %d(%x) bytes written", ++ (unsigned)n, (unsigned)n); ++ ++ if (n_written > 0) { ++ ipos += n_written; ++ *pos = ipos; ++ if (ipos > inode->i_size) { ++ inode->i_size = ipos; ++ inode->i_blocks = (ipos + 511) >> 9; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_file_write size updated to %lld bytes, %d blocks", ++ ipos, (int)(inode->i_blocks)); ++ } ++ ++ } ++ yaffs_gross_unlock(dev); ++ return (n_written == 0) && (n > 0) ? -ENOSPC : n_written; ++} ++ ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata) ++{ ++ int ret = 0; ++ void *addr, *kva; ++ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); ++ ++ kva = kmap(pg); ++ addr = kva + offset_into_page; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_write_end addr %p pos %lld n_bytes %d", ++ addr, pos, copied); ++ ++ ret = yaffs_file_write(filp, addr, copied, &pos); ++ ++ if (ret != copied) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_write_end not same size ret %d copied %d", ++ ret, copied); ++ SetPageError(pg); ++ } ++ ++ kunmap(pg); ++ ++ yaffs_release_space(filp); ++ unlock_page(pg); ++ page_cache_release(pg); ++ return ret; ++} ++#else ++ ++static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, ++ unsigned to) ++{ ++ void *addr, *kva; ++ ++ loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; ++ int n_bytes = to - offset; ++ int n_written; ++ ++ kva = kmap(pg); ++ addr = kva + offset; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_commit_write addr %p pos %lld n_bytes %d", ++ addr, pos, n_bytes); ++ ++ n_written = yaffs_file_write(f, addr, n_bytes, &pos); ++ ++ if (n_written != n_bytes) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_commit_write not same size n_written %d n_bytes %d", ++ n_written, n_bytes); ++ SetPageError(pg); ++ } ++ kunmap(pg); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_commit_write returning %d", ++ n_written == n_bytes ? 0 : n_written); ++ ++ return n_written == n_bytes ? 0 : n_written; ++} ++#endif ++ ++static struct address_space_operations yaffs_file_address_operations = { ++ .readpage = yaffs_readpage, ++ .writepage = yaffs_writepage, ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++ .write_begin = yaffs_write_begin, ++ .write_end = yaffs_write_end, ++#else ++ .prepare_write = yaffs_prepare_write, ++ .commit_write = yaffs_commit_write, ++#endif ++}; ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_file_flush(struct file *file, fl_owner_t id) ++#else ++static int yaffs_file_flush(struct file *file) ++#endif ++{ ++ struct yaffs_obj *obj = yaffs_dentry_to_obj(file->f_dentry); ++ ++ struct yaffs_dev *dev = obj->my_dev; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_file_flush object %d (%s)", ++ obj->obj_id, ++ obj->dirty ? "dirty" : "clean"); ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_flush_file(obj, 1, 0); ++ ++ yaffs_gross_unlock(dev); ++ ++ return 0; ++} ++ ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) ++static int yaffs_sync_object(struct file *file, loff_t start, loff_t end, int datasync) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) ++static int yaffs_sync_object(struct file *file, int datasync) ++#else ++static int yaffs_sync_object(struct file *file, struct dentry *dentry, ++ int datasync) ++#endif ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34)) ++ struct dentry *dentry = file->f_path.dentry; ++#endif ++ ++ obj = yaffs_dentry_to_obj(dentry); ++ ++ dev = obj->my_dev; ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, ++ "yaffs_sync_object"); ++ yaffs_gross_lock(dev); ++ yaffs_flush_file(obj, 1, datasync); ++ yaffs_gross_unlock(dev); ++ return 0; ++} ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) ++static const struct file_operations yaffs_file_operations = { ++ .read = do_sync_read, ++ .write = do_sync_write, ++ .aio_read = generic_file_aio_read, ++ .aio_write = generic_file_aio_write, ++ .mmap = generic_file_mmap, ++ .flush = yaffs_file_flush, ++ .fsync = yaffs_sync_object, ++ .splice_read = generic_file_splice_read, ++ .splice_write = generic_file_splice_write, ++ .llseek = generic_file_llseek, ++}; ++ ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) ++ ++static const struct file_operations yaffs_file_operations = { ++ .read = do_sync_read, ++ .write = do_sync_write, ++ .aio_read = generic_file_aio_read, ++ .aio_write = generic_file_aio_write, ++ .mmap = generic_file_mmap, ++ .flush = yaffs_file_flush, ++ .fsync = yaffs_sync_object, ++ .sendfile = generic_file_sendfile, ++}; ++ ++#else ++ ++static const struct file_operations yaffs_file_operations = { ++ .read = generic_file_read, ++ .write = generic_file_write, ++ .mmap = generic_file_mmap, ++ .flush = yaffs_file_flush, ++ .fsync = yaffs_sync_object, ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ .sendfile = generic_file_sendfile, ++#endif ++}; ++#endif ++ ++ ++ ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) ++static void zero_user_segment(struct page *page, unsigned start, unsigned end) ++{ ++ void *kaddr = kmap_atomic(page, KM_USER0); ++ memset(kaddr + start, 0, end - start); ++ kunmap_atomic(kaddr, KM_USER0); ++ flush_dcache_page(page); ++} ++#endif ++ ++ ++static int yaffs_vfs_setsize(struct inode *inode, loff_t newsize) ++{ ++#ifdef YAFFS_USE_TRUNCATE_SETSIZE ++ truncate_setsize(inode, newsize); ++ return 0; ++#else ++ truncate_inode_pages(&inode->i_data, newsize); ++ return 0; ++#endif ++ ++} ++ ++ ++static int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr) ++{ ++#ifdef YAFFS_USE_SETATTR_COPY ++ setattr_copy(inode, attr); ++ return 0; ++#else ++ return inode_setattr(inode, attr); ++#endif ++ ++} ++ ++static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ struct yaffs_dev *dev; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_setattr of object %d", ++ yaffs_inode_to_obj(inode)->obj_id); ++#if 0 ++ /* Fail if a requested resize >= 2GB */ ++ if (attr->ia_valid & ATTR_SIZE && (attr->ia_size >> 31)) ++ error = -EINVAL; ++#endif ++ ++ if (error == 0) ++ error = inode_change_ok(inode, attr); ++ if (error == 0) { ++ int result; ++ if (!error) { ++ error = yaffs_vfs_setattr(inode, attr); ++ yaffs_trace(YAFFS_TRACE_OS, "inode_setattr called"); ++ if (attr->ia_valid & ATTR_SIZE) { ++ yaffs_vfs_setsize(inode, attr->ia_size); ++ inode->i_blocks = (inode->i_size + 511) >> 9; ++ } ++ } ++ dev = yaffs_inode_to_obj(inode)->my_dev; ++ if (attr->ia_valid & ATTR_SIZE) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "resize to %d(%x)", ++ (int)(attr->ia_size), ++ (int)(attr->ia_size)); ++ } ++ yaffs_gross_lock(dev); ++ result = yaffs_set_attribs(yaffs_inode_to_obj(inode), attr); ++ if (result == YAFFS_OK) { ++ error = 0; ++ } else { ++ error = -EPERM; ++ } ++ yaffs_gross_unlock(dev); ++ ++ } ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_setattr done returning %d", error); ++ ++ return error; ++} ++ ++static int yaffs_setxattr(struct dentry *dentry, const char *name, ++ const void *value, size_t size, int flags) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ struct yaffs_dev *dev; ++ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_setxattr of object %d", obj->obj_id); ++ ++ if (error == 0) { ++ int result; ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ result = yaffs_set_xattrib(obj, name, value, size, flags); ++ if (result == YAFFS_OK) ++ error = 0; ++ else if (result < 0) ++ error = result; ++ yaffs_gross_unlock(dev); ++ ++ } ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_setxattr done returning %d", error); ++ ++ return error; ++} ++ ++static ssize_t yaffs_getxattr(struct dentry * dentry, const char *name, ++ void *buff, size_t size) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ struct yaffs_dev *dev; ++ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_getxattr \"%s\" from object %d", ++ name, obj->obj_id); ++ ++ if (error == 0) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ error = yaffs_get_xattrib(obj, name, buff, size); ++ yaffs_gross_unlock(dev); ++ ++ } ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_getxattr done returning %d", error); ++ ++ return error; ++} ++ ++static int yaffs_removexattr(struct dentry *dentry, const char *name) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ struct yaffs_dev *dev; ++ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_removexattr of object %d", obj->obj_id); ++ ++ if (error == 0) { ++ int result; ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ result = yaffs_remove_xattrib(obj, name); ++ if (result == YAFFS_OK) ++ error = 0; ++ else if (result < 0) ++ error = result; ++ yaffs_gross_unlock(dev); ++ ++ } ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_removexattr done returning %d", error); ++ ++ return error; ++} ++ ++static ssize_t yaffs_listxattr(struct dentry * dentry, char *buff, size_t size) ++{ ++ struct inode *inode = dentry->d_inode; ++ int error = 0; ++ struct yaffs_dev *dev; ++ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_listxattr of object %d", obj->obj_id); ++ ++ if (error == 0) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ error = yaffs_list_xattrib(obj, buff, size); ++ yaffs_gross_unlock(dev); ++ ++ } ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_listxattr done returning %d", error); ++ ++ return error; ++} ++ ++ ++static const struct inode_operations yaffs_file_inode_operations = { ++ .setattr = yaffs_setattr, ++ .setxattr = yaffs_setxattr, ++ .getxattr = yaffs_getxattr, ++ .listxattr = yaffs_listxattr, ++ .removexattr = yaffs_removexattr, ++}; ++ ++ ++static int yaffs_readlink(struct dentry *dentry, char __user * buffer, ++ int buflen) ++{ ++ unsigned char *alias; ++ int ret; ++ ++ struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (!alias) ++ return -ENOMEM; ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)) ++ ret = readlink_copy(buffer, buflen, alias); ++#else ++ ret = vfs_readlink(dentry, buffer, buflen, alias); ++#endif ++ kfree(alias); ++ return ret; ++} ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) ++{ ++ void *ret; ++#else ++static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) ++{ ++ int ret ++#endif ++ unsigned char *alias; ++ int ret_int = 0; ++ struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry)); ++ yaffs_gross_unlock(dev); ++ ++ if (!alias) { ++ ret_int = -ENOMEM; ++ goto out; ++ } ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++ nd_set_link(nd, alias); ++ ret = alias; ++out: ++ if (ret_int) ++ ret = ERR_PTR(ret_int); ++ return ret; ++#else ++ ret = vfs_follow_link(nd, alias); ++ kfree(alias); ++out: ++ if (ret_int) ++ ret = ret_int; ++ return ret; ++#endif ++} ++ ++ ++#ifdef YAFFS_HAS_PUT_INODE ++ ++/* For now put inode is just for debugging ++ * Put inode is called when the inode **structure** is put. ++ */ ++static void yaffs_put_inode(struct inode *inode) ++{ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_put_inode: ino %d, count %d"), ++ (int)inode->i_ino, atomic_read(&inode->i_count); ++ ++} ++#endif ++ ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias) ++{ ++ kfree(alias); ++} ++#endif ++ ++static const struct inode_operations yaffs_symlink_inode_operations = { ++ .readlink = yaffs_readlink, ++ .follow_link = yaffs_follow_link, ++#if (YAFFS_NEW_FOLLOW_LINK == 1) ++ .put_link = yaffs_put_link, ++#endif ++ .setattr = yaffs_setattr, ++ .setxattr = yaffs_setxattr, ++ .getxattr = yaffs_getxattr, ++ .listxattr = yaffs_listxattr, ++ .removexattr = yaffs_removexattr, ++}; ++ ++#ifdef YAFFS_USE_OWN_IGET ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) ++{ ++ struct inode *inode; ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev = yaffs_super_to_dev(sb); ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_iget for %lu", ino); ++ ++ inode = iget_locked(sb, ino); ++ if (!inode) ++ return ERR_PTR(-ENOMEM); ++ if (!(inode->i_state & I_NEW)) ++ return inode; ++ ++ /* NB This is called as a side effect of other functions, but ++ * we had to release the lock to prevent deadlocks, so ++ * need to lock again. ++ */ ++ ++ yaffs_gross_lock(dev); ++ ++ obj = yaffs_find_by_number(dev, inode->i_ino); ++ ++ yaffs_fill_inode_from_obj(inode, obj); ++ ++ yaffs_gross_unlock(dev); ++ ++ unlock_new_inode(inode); ++ return inode; ++} ++ ++#else ++ ++static void yaffs_read_inode(struct inode *inode) ++{ ++ /* NB This is called as a side effect of other functions, but ++ * we had to release the lock to prevent deadlocks, so ++ * need to lock again. ++ */ ++ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev = yaffs_super_to_dev(inode->i_sb); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_read_inode for %d", (int)inode->i_ino); ++ ++ if (current != yaffs_dev_to_lc(dev)->readdir_process) ++ yaffs_gross_lock(dev); ++ ++ obj = yaffs_find_by_number(dev, inode->i_ino); ++ ++ yaffs_fill_inode_from_obj(inode, obj); ++ ++ if (current != yaffs_dev_to_lc(dev)->readdir_process) ++ yaffs_gross_unlock(dev); ++} ++ ++#endif ++ ++ ++ ++struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, ++ struct yaffs_obj *obj) ++{ ++ struct inode *inode; ++ ++ if (!sb) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_get_inode for NULL super_block!!"); ++ return NULL; ++ ++ } ++ ++ if (!obj) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_get_inode for NULL object!!"); ++ return NULL; ++ ++ } ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_get_inode for object %d", obj->obj_id); ++ ++ inode = Y_IGET(sb, obj->obj_id); ++ if (IS_ERR(inode)) ++ return NULL; ++ ++ /* NB Side effect: iget calls back to yaffs_read_inode(). */ ++ /* iget also increments the inode's i_count */ ++ /* NB You can't be holding gross_lock or deadlock will happen! */ ++ ++ return inode; ++} ++ ++ ++ ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++#define YCRED(x) x ++#else ++#define YCRED(x) (x->cred) ++#endif ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, ++ dev_t rdev) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ dev_t rdev) ++#else ++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, ++ int rdev) ++#endif ++{ ++ struct inode *inode; ++ ++ struct yaffs_obj *obj = NULL; ++ struct yaffs_dev *dev; ++ ++ struct yaffs_obj *parent = yaffs_inode_to_obj(dir); ++ ++ int error = -ENOSPC; ++ uid_t uid = YCRED_FSUID(); ++ gid_t gid = ++ (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID(); ++ ++ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) ++ mode |= S_ISGID; ++ ++ if (parent) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_mknod: parent object %d type %d", ++ parent->obj_id, parent->variant_type); ++ } else { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_mknod: could not get parent object"); ++ return -EPERM; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_mknod: making oject for %s, mode %x dev %x", ++ dentry->d_name.name, mode, rdev); ++ ++ dev = parent->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ switch (mode & S_IFMT) { ++ default: ++ /* Special (socket, fifo, device...) */ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making special"); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ obj = ++ yaffs_create_special(parent, dentry->d_name.name, mode, uid, ++ gid, old_encode_dev(rdev)); ++#else ++ obj = ++ yaffs_create_special(parent, dentry->d_name.name, mode, uid, ++ gid, rdev); ++#endif ++ break; ++ case S_IFREG: /* file */ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making file"); ++ obj = yaffs_create_file(parent, dentry->d_name.name, mode, uid, ++ gid); ++ break; ++ case S_IFDIR: /* directory */ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making directory"); ++ obj = yaffs_create_dir(parent, dentry->d_name.name, mode, ++ uid, gid); ++ break; ++ case S_IFLNK: /* symlink */ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod: making symlink"); ++ obj = NULL; /* Do we ever get here? */ ++ break; ++ } ++ ++ /* Can not call yaffs_get_inode() with gross lock held */ ++ yaffs_gross_unlock(dev); ++ ++ if (obj) { ++ inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); ++ d_instantiate(dentry, inode); ++ update_dir_time(dir); ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_mknod created object %d count = %d", ++ obj->obj_id, atomic_read(&inode->i_count)); ++ error = 0; ++ yaffs_fill_inode_from_obj(dir, parent); ++ } else { ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mknod failed making object"); ++ error = -ENOMEM; ++ } ++ ++ return error; ++} ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) ++static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) ++#else ++static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) ++#endif ++{ ++ int ret_val; ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_mkdir"); ++ ret_val = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); ++ return ret_val; ++} ++ ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)) ++static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode, ++ bool dummy) ++#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)) ++static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode, ++ struct nameidata *n) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, ++ struct nameidata *n) ++#else ++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) ++#endif ++{ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_create"); ++ return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); ++} ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)) ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, ++ unsigned int dummy) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, ++ struct nameidata *n) ++#else ++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) ++#endif ++{ ++ struct yaffs_obj *obj; ++ struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ ++ ++ struct yaffs_dev *dev = yaffs_inode_to_obj(dir)->my_dev; ++ ++ if (current != yaffs_dev_to_lc(dev)->readdir_process) ++ yaffs_gross_lock(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_lookup for %d:%s", ++ yaffs_inode_to_obj(dir)->obj_id, dentry->d_name.name); ++ ++ obj = yaffs_find_by_name(yaffs_inode_to_obj(dir), dentry->d_name.name); ++ ++ obj = yaffs_get_equivalent_obj(obj); /* in case it was a hardlink */ ++ ++ /* Can't hold gross lock when calling yaffs_get_inode() */ ++ if (current != yaffs_dev_to_lc(dev)->readdir_process) ++ yaffs_gross_unlock(dev); ++ ++ if (obj) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_lookup found %d", obj->obj_id); ++ ++ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); ++ } else { ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_lookup not found"); ++ ++ } ++ ++/* added NCB for 2.5/6 compatability - forces add even if inode is ++ * NULL which creates dentry hash */ ++ d_add(dentry, inode); ++ ++ return NULL; ++} ++ ++/* ++ * Create a link... ++ */ ++static int yaffs_link(struct dentry *old_dentry, struct inode *dir, ++ struct dentry *dentry) ++{ ++ struct inode *inode = old_dentry->d_inode; ++ struct yaffs_obj *obj = NULL; ++ struct yaffs_obj *link = NULL; ++ struct yaffs_dev *dev; ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_link"); ++ ++ obj = yaffs_inode_to_obj(inode); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ ++ link = ++ yaffs_link_obj(yaffs_inode_to_obj(dir), dentry->d_name.name, ++ obj); ++ ++ if (link) { ++ set_nlink(old_dentry->d_inode, yaffs_get_obj_link_count(obj)); ++ d_instantiate(dentry, old_dentry->d_inode); ++ atomic_inc(&old_dentry->d_inode->i_count); ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_link link count %d i_count %d", ++ old_dentry->d_inode->i_nlink, ++ atomic_read(&old_dentry->d_inode->i_count)); ++ } ++ ++ yaffs_gross_unlock(dev); ++ ++ if (link) { ++ update_dir_time(dir); ++ return 0; ++ } ++ ++ return -EPERM; ++} ++ ++static int yaffs_symlink(struct inode *dir, struct dentry *dentry, ++ const char *symname) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ uid_t uid = YCRED_FSUID(); ++ gid_t gid = ++ (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID(); ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_symlink"); ++ ++ if (strnlen(dentry->d_name.name, YAFFS_MAX_NAME_LENGTH + 1) > ++ YAFFS_MAX_NAME_LENGTH) ++ return -ENAMETOOLONG; ++ ++ if (strnlen(symname, YAFFS_MAX_ALIAS_LENGTH + 1) > ++ YAFFS_MAX_ALIAS_LENGTH) ++ return -ENAMETOOLONG; ++ ++ dev = yaffs_inode_to_obj(dir)->my_dev; ++ yaffs_gross_lock(dev); ++ obj = yaffs_create_symlink(yaffs_inode_to_obj(dir), dentry->d_name.name, ++ S_IFLNK | S_IRWXUGO, uid, gid, symname); ++ yaffs_gross_unlock(dev); ++ ++ if (obj) { ++ struct inode *inode; ++ ++ inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); ++ d_instantiate(dentry, inode); ++ update_dir_time(dir); ++ yaffs_trace(YAFFS_TRACE_OS, "symlink created OK"); ++ return 0; ++ } else { ++ yaffs_trace(YAFFS_TRACE_OS, "symlink not created"); ++ } ++ ++ return -ENOMEM; ++} ++ ++/* ++ * The VFS layer already does all the dentry stuff for rename. ++ * ++ * NB: POSIX says you can rename an object over an old object of the same name ++ */ ++static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, ++ struct inode *new_dir, struct dentry *new_dentry) ++{ ++ struct yaffs_dev *dev; ++ int ret_val = YAFFS_FAIL; ++ struct yaffs_obj *target; ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_rename"); ++ dev = yaffs_inode_to_obj(old_dir)->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ /* Check if the target is an existing directory that is not empty. */ ++ target = yaffs_find_by_name(yaffs_inode_to_obj(new_dir), ++ new_dentry->d_name.name); ++ ++ if (target && target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !list_empty(&target->variant.dir_variant.children)) { ++ ++ yaffs_trace(YAFFS_TRACE_OS, "target is non-empty dir"); ++ ++ ret_val = YAFFS_FAIL; ++ } else { ++ /* Now does unlinking internally using shadowing mechanism */ ++ yaffs_trace(YAFFS_TRACE_OS, "calling yaffs_rename_obj"); ++ ++ ret_val = yaffs_rename_obj(yaffs_inode_to_obj(old_dir), ++ old_dentry->d_name.name, ++ yaffs_inode_to_obj(new_dir), ++ new_dentry->d_name.name); ++ } ++ yaffs_gross_unlock(dev); ++ ++ if (ret_val == YAFFS_OK) { ++ if (target) ++ inode_dec_link_count(new_dentry->d_inode); ++ ++ update_dir_time(old_dir); ++ if (old_dir != new_dir) ++ update_dir_time(new_dir); ++ return 0; ++ } else { ++ return -ENOTEMPTY; ++ } ++} ++ ++ ++ ++ ++static int yaffs_unlink(struct inode *dir, struct dentry *dentry) ++{ ++ int ret_val; ++ ++ struct yaffs_dev *dev; ++ struct yaffs_obj *obj; ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_unlink %d:%s", ++ (int)(dir->i_ino), dentry->d_name.name); ++ obj = yaffs_inode_to_obj(dir); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ ret_val = yaffs_unlinker(obj, dentry->d_name.name); ++ ++ if (ret_val == YAFFS_OK) { ++ inode_dec_link_count(dentry->d_inode); ++ dir->i_version++; ++ yaffs_gross_unlock(dev); ++ update_dir_time(dir); ++ return 0; ++ } ++ yaffs_gross_unlock(dev); ++ return -ENOTEMPTY; ++} ++ ++ ++ ++static const struct inode_operations yaffs_dir_inode_operations = { ++ .create = yaffs_create, ++ .lookup = yaffs_lookup, ++ .link = yaffs_link, ++ .unlink = yaffs_unlink, ++ .symlink = yaffs_symlink, ++ .mkdir = yaffs_mkdir, ++ .rmdir = yaffs_unlink, ++ .mknod = yaffs_mknod, ++ .rename = yaffs_rename, ++ .setattr = yaffs_setattr, ++ .setxattr = yaffs_setxattr, ++ .getxattr = yaffs_getxattr, ++ .listxattr = yaffs_listxattr, ++ .removexattr = yaffs_removexattr, ++}; ++ ++/*-----------------------------------------------------------------*/ ++/* Directory search context allows us to unlock access to yaffs during ++ * filldir without causing problems with the directory being modified. ++ * This is similar to the tried and tested mechanism used in yaffs direct. ++ * ++ * A search context iterates along a doubly linked list of siblings in the ++ * directory. If the iterating object is deleted then this would corrupt ++ * the list iteration, likely causing a crash. The search context avoids ++ * this by using the remove_obj_fn to move the search context to the ++ * next object before the object is deleted. ++ * ++ * Many readdirs (and thus seach conexts) may be alive simulateously so ++ * each struct yaffs_dev has a list of these. ++ * ++ * A seach context lives for the duration of a readdir. ++ * ++ * All these functions must be called while yaffs is locked. ++ */ ++ ++struct yaffs_search_context { ++ struct yaffs_dev *dev; ++ struct yaffs_obj *dir_obj; ++ struct yaffs_obj *next_return; ++ struct list_head others; ++}; ++ ++/* ++ * yaffs_new_search() creates a new search context, initialises it and ++ * adds it to the device's search context list. ++ * ++ * Called at start of readdir. ++ */ ++static struct yaffs_search_context *yaffs_new_search(struct yaffs_obj *dir) ++{ ++ struct yaffs_dev *dev = dir->my_dev; ++ struct yaffs_search_context *sc = ++ kmalloc(sizeof(struct yaffs_search_context), GFP_NOFS); ++ if (sc) { ++ sc->dir_obj = dir; ++ sc->dev = dev; ++ if (list_empty(&sc->dir_obj->variant.dir_variant.children)) ++ sc->next_return = NULL; ++ else ++ sc->next_return = ++ list_entry(dir->variant.dir_variant.children.next, ++ struct yaffs_obj, siblings); ++ INIT_LIST_HEAD(&sc->others); ++ list_add(&sc->others, &(yaffs_dev_to_lc(dev)->search_contexts)); ++ } ++ return sc; ++} ++ ++/* ++ * yaffs_search_end() disposes of a search context and cleans up. ++ */ ++static void yaffs_search_end(struct yaffs_search_context *sc) ++{ ++ if (sc) { ++ list_del(&sc->others); ++ kfree(sc); ++ } ++} ++ ++/* ++ * yaffs_search_advance() moves a search context to the next object. ++ * Called when the search iterates or when an object removal causes ++ * the search context to be moved to the next object. ++ */ ++static void yaffs_search_advance(struct yaffs_search_context *sc) ++{ ++ if (!sc) ++ return; ++ ++ if (sc->next_return == NULL || ++ list_empty(&sc->dir_obj->variant.dir_variant.children)) ++ sc->next_return = NULL; ++ else { ++ struct list_head *next = sc->next_return->siblings.next; ++ ++ if (next == &sc->dir_obj->variant.dir_variant.children) ++ sc->next_return = NULL; /* end of list */ ++ else ++ sc->next_return = ++ list_entry(next, struct yaffs_obj, siblings); ++ } ++} ++ ++/* ++ * yaffs_remove_obj_callback() is called when an object is unlinked. ++ * We check open search contexts and advance any which are currently ++ * on the object being iterated. ++ */ ++static void yaffs_remove_obj_callback(struct yaffs_obj *obj) ++{ ++ ++ struct list_head *i; ++ struct yaffs_search_context *sc; ++ struct list_head *search_contexts = ++ &(yaffs_dev_to_lc(obj->my_dev)->search_contexts); ++ ++ /* Iterate through the directory search contexts. ++ * If any are currently on the object being removed, then advance ++ * the search context to the next object to prevent a hanging pointer. ++ */ ++ list_for_each(i, search_contexts) { ++ sc = list_entry(i, struct yaffs_search_context, others); ++ if (sc->next_return == obj) ++ yaffs_search_advance(sc); ++ } ++ ++} ++ ++ ++/*-----------------------------------------------------------------*/ ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0)) ++static int yaffs_readdir(struct file *file, struct dir_context *ctx) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ struct yaffs_search_context *sc; ++ struct inode *inode = file->f_dentry->d_inode; ++ unsigned long offset, curoffs; ++ struct yaffs_obj *l; ++ int ret_val = 0; ++ ++ char name[YAFFS_MAX_NAME_LENGTH + 1]; ++ ++ obj = yaffs_dentry_to_obj(file->f_dentry); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_dev_to_lc(dev)->readdir_process = current; ++ ++ offset = ctx->pos; ++ ++ sc = yaffs_new_search(obj); ++ if (!sc) { ++ ret_val = -ENOMEM; ++ goto out; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: starting at %d", (int)offset); ++ ++ if (offset == 0) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: entry . ino %d", ++ (int)inode->i_ino); ++ yaffs_gross_unlock(dev); ++ if (!dir_emit_dot(file, ctx)) { ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ yaffs_gross_lock(dev); ++ offset++; ++ ctx->pos++; ++ } ++ if (offset == 1) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: entry .. ino %d", ++ (int)file->f_dentry->d_parent->d_inode->i_ino); ++ yaffs_gross_unlock(dev); ++ if (!dir_emit_dotdot(file, ctx)) { ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ yaffs_gross_lock(dev); ++ offset++; ++ ctx->pos++; ++ } ++ ++ curoffs = 1; ++ ++ /* If the directory has changed since the open or last call to ++ readdir, rewind to after the 2 canned entries. */ ++ if (file->f_version != inode->i_version) { ++ offset = 2; ++ ctx->pos = offset; ++ file->f_version = inode->i_version; ++ } ++ ++ while (sc->next_return) { ++ curoffs++; ++ l = sc->next_return; ++ if (curoffs >= offset) { ++ int this_inode = yaffs_get_obj_inode(l); ++ int this_type = yaffs_get_obj_type(l); ++ ++ yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1); ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: %s inode %d", ++ name, yaffs_get_obj_inode(l)); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (!dir_emit(ctx, name, strlen(name), ++ this_inode, this_type) < 0) { ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ ++ yaffs_gross_lock(dev); ++ ++ offset++; ++ ctx->pos++; ++ } ++ yaffs_search_advance(sc); ++ } ++ ++out: ++ yaffs_search_end(sc); ++ yaffs_dev_to_lc(dev)->readdir_process = NULL; ++ yaffs_gross_unlock(dev); ++ ++ return ret_val; ++} ++#else ++static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ struct yaffs_search_context *sc; ++ struct inode *inode = f->f_dentry->d_inode; ++ unsigned long offset, curoffs; ++ struct yaffs_obj *l; ++ int ret_val = 0; ++ ++ char name[YAFFS_MAX_NAME_LENGTH + 1]; ++ ++ obj = yaffs_dentry_to_obj(f->f_dentry); ++ dev = obj->my_dev; ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_dev_to_lc(dev)->readdir_process = current; ++ ++ offset = f->f_pos; ++ ++ sc = yaffs_new_search(obj); ++ if (!sc) { ++ ret_val = -ENOMEM; ++ goto out; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: starting at %d", (int)offset); ++ ++ if (offset == 0) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: entry . ino %d", ++ (int)inode->i_ino); ++ yaffs_gross_unlock(dev); ++ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) { ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ yaffs_gross_lock(dev); ++ offset++; ++ f->f_pos++; ++ } ++ if (offset == 1) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: entry .. ino %d", ++ (int)f->f_dentry->d_parent->d_inode->i_ino); ++ yaffs_gross_unlock(dev); ++ if (filldir(dirent, "..", 2, offset, ++ f->f_dentry->d_parent->d_inode->i_ino, ++ DT_DIR) < 0) { ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ yaffs_gross_lock(dev); ++ offset++; ++ f->f_pos++; ++ } ++ ++ curoffs = 1; ++ ++ /* If the directory has changed since the open or last call to ++ readdir, rewind to after the 2 canned entries. */ ++ if (f->f_version != inode->i_version) { ++ offset = 2; ++ f->f_pos = offset; ++ f->f_version = inode->i_version; ++ } ++ ++ while (sc->next_return) { ++ curoffs++; ++ l = sc->next_return; ++ if (curoffs >= offset) { ++ int this_inode = yaffs_get_obj_inode(l); ++ int this_type = yaffs_get_obj_type(l); ++ ++ yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1); ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_readdir: %s inode %d", ++ name, yaffs_get_obj_inode(l)); ++ ++ yaffs_gross_unlock(dev); ++ ++ if (filldir(dirent, ++ name, ++ strlen(name), ++ offset, this_inode, this_type) < 0) { ++ yaffs_gross_lock(dev); ++ goto out; ++ } ++ ++ yaffs_gross_lock(dev); ++ ++ offset++; ++ f->f_pos++; ++ } ++ yaffs_search_advance(sc); ++ } ++ ++out: ++ yaffs_search_end(sc); ++ yaffs_dev_to_lc(dev)->readdir_process = NULL; ++ yaffs_gross_unlock(dev); ++ ++ return ret_val; ++} ++#endif ++ ++static const struct file_operations yaffs_dir_operations = { ++ .read = generic_read_dir, ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0)) ++ .iterate = yaffs_readdir, ++#else ++ .readdir = yaffs_readdir, ++#endif ++ .fsync = yaffs_sync_object, ++ .llseek = generic_file_llseek, ++}; ++ ++static void yaffs_fill_inode_from_obj(struct inode *inode, ++ struct yaffs_obj *obj) ++{ ++ if (inode && obj) { ++ ++ /* Check mode against the variant type and attempt to repair if broken. */ ++ u32 mode = obj->yst_mode; ++ switch (obj->variant_type) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (!S_ISREG(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFREG; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ if (!S_ISLNK(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFLNK; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ if (!S_ISDIR(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFDIR; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ default: ++ /* TODO? */ ++ break; ++ } ++ ++ inode->i_flags |= S_NOATIME; ++ ++ inode->i_ino = obj->obj_id; ++ inode->i_mode = obj->yst_mode; ++ i_uid_write(inode, obj->yst_uid); ++ i_gid_write(inode, obj->yst_gid); ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) ++ inode->i_blksize = inode->i_sb->s_blocksize; ++#endif ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ ++ inode->i_rdev = old_decode_dev(obj->yst_rdev); ++ inode->i_atime.tv_sec = (time_t) (obj->yst_atime); ++ inode->i_atime.tv_nsec = 0; ++ inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; ++ inode->i_mtime.tv_nsec = 0; ++ inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; ++ inode->i_ctime.tv_nsec = 0; ++#else ++ inode->i_rdev = obj->yst_rdev; ++ inode->i_atime = obj->yst_atime; ++ inode->i_mtime = obj->yst_mtime; ++ inode->i_ctime = obj->yst_ctime; ++#endif ++ inode->i_size = yaffs_get_obj_length(obj); ++ inode->i_blocks = (inode->i_size + 511) >> 9; ++ ++ set_nlink(inode, yaffs_get_obj_link_count(obj)); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_fill_inode mode %x uid %d gid %d size %lld count %d", ++ inode->i_mode, i_uid_read(inode), i_gid_read(inode), ++ inode->i_size, atomic_read(&inode->i_count)); ++ ++ switch (obj->yst_mode & S_IFMT) { ++ default: /* fifo, device or socket */ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ init_special_inode(inode, obj->yst_mode, ++ old_decode_dev(obj->yst_rdev)); ++#else ++ init_special_inode(inode, obj->yst_mode, ++ (dev_t) (obj->yst_rdev)); ++#endif ++ break; ++ case S_IFREG: /* file */ ++ inode->i_op = &yaffs_file_inode_operations; ++ inode->i_fop = &yaffs_file_operations; ++ inode->i_mapping->a_ops = ++ &yaffs_file_address_operations; ++ break; ++ case S_IFDIR: /* directory */ ++ inode->i_op = &yaffs_dir_inode_operations; ++ inode->i_fop = &yaffs_dir_operations; ++ break; ++ case S_IFLNK: /* symlink */ ++ inode->i_op = &yaffs_symlink_inode_operations; ++ break; ++ } ++ ++ yaffs_inode_to_obj_lv(inode) = obj; ++ ++ obj->my_inode = inode; ++ ++ } else { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_fill_inode invalid parameters"); ++ } ++ ++} ++ ++ ++ ++/* ++ * yaffs background thread functions . ++ * yaffs_bg_thread_fn() the thread function ++ * yaffs_bg_start() launches the background thread. ++ * yaffs_bg_stop() cleans up the background thread. ++ * ++ * NB: ++ * The thread should only run after the yaffs is initialised ++ * The thread should be stopped before yaffs is unmounted. ++ * The thread should not do any writing while the fs is in read only. ++ */ ++ ++static unsigned yaffs_bg_gc_urgency(struct yaffs_dev *dev) ++{ ++ unsigned erased_chunks = ++ dev->n_erased_blocks * dev->param.chunks_per_block; ++ struct yaffs_linux_context *context = yaffs_dev_to_lc(dev); ++ unsigned scattered = 0; /* Free chunks not in an erased block */ ++ ++ if (erased_chunks < dev->n_free_chunks) ++ scattered = (dev->n_free_chunks - erased_chunks); ++ ++ if (!context->bg_running) ++ return 0; ++ else if (scattered < (dev->param.chunks_per_block * 2)) ++ return 0; ++ else if (erased_chunks > dev->n_free_chunks / 2) ++ return 0; ++ else if (erased_chunks > dev->n_free_chunks / 4) ++ return 1; ++ else ++ return 2; ++} ++ ++#ifdef YAFFS_COMPILE_BACKGROUND ++ ++void yaffs_background_waker(unsigned long data) ++{ ++ wake_up_process((struct task_struct *)data); ++} ++ ++static int yaffs_bg_thread_fn(void *data) ++{ ++ struct yaffs_dev *dev = (struct yaffs_dev *)data; ++ struct yaffs_linux_context *context = yaffs_dev_to_lc(dev); ++ unsigned long now = jiffies; ++ unsigned long next_dir_update = now; ++ unsigned long next_gc = now; ++ unsigned long expires; ++ unsigned int urgency; ++ ++ int gc_result; ++ struct timer_list timer; ++ ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, ++ "yaffs_background starting for dev %p", (void *)dev); ++ ++#ifdef YAFFS_COMPILE_FREEZER ++ set_freezable(); ++#endif ++ while (context->bg_running) { ++ yaffs_trace(YAFFS_TRACE_BACKGROUND, "yaffs_background"); ++ ++ if (kthread_should_stop()) ++ break; ++ ++#ifdef YAFFS_COMPILE_FREEZER ++ if (try_to_freeze()) ++ continue; ++#endif ++ yaffs_gross_lock(dev); ++ ++ now = jiffies; ++ ++ if (time_after(now, next_dir_update) && yaffs_bg_enable) { ++ yaffs_update_dirty_dirs(dev); ++ next_dir_update = now + HZ; ++ } ++ ++ if (time_after(now, next_gc) && yaffs_bg_enable) { ++ if (!dev->is_checkpointed) { ++ urgency = yaffs_bg_gc_urgency(dev); ++ gc_result = yaffs_bg_gc(dev, urgency); ++ if (urgency > 1) ++ next_gc = now + HZ / 20 + 1; ++ else if (urgency > 0) ++ next_gc = now + HZ / 10 + 1; ++ else ++ next_gc = now + HZ * 2; ++ } else { ++ /* ++ * gc not running so set to next_dir_update ++ * to cut down on wake ups ++ */ ++ next_gc = next_dir_update; ++ } ++ } ++ yaffs_gross_unlock(dev); ++#if 1 ++ expires = next_dir_update; ++ if (time_before(next_gc, expires)) ++ expires = next_gc; ++ if (time_before(expires, now)) ++ expires = now + HZ; ++ ++ Y_INIT_TIMER(&timer); ++ timer.expires = expires + 1; ++ timer.data = (unsigned long)current; ++ timer.function = yaffs_background_waker; ++ ++ set_current_state(TASK_INTERRUPTIBLE); ++ add_timer(&timer); ++ schedule(); ++ del_timer_sync(&timer); ++#else ++ msleep(10); ++#endif ++ } ++ ++ return 0; ++} ++ ++static int yaffs_bg_start(struct yaffs_dev *dev) ++{ ++ int retval = 0; ++ struct yaffs_linux_context *context = yaffs_dev_to_lc(dev); ++ ++ if (dev->read_only) ++ return -1; ++ ++ context->bg_running = 1; ++ ++ context->bg_thread = kthread_run(yaffs_bg_thread_fn, ++ (void *)dev, "yaffs-bg-%d", ++ context->mount_id); ++ ++ if (IS_ERR(context->bg_thread)) { ++ retval = PTR_ERR(context->bg_thread); ++ context->bg_thread = NULL; ++ context->bg_running = 0; ++ } ++ return retval; ++} ++ ++static void yaffs_bg_stop(struct yaffs_dev *dev) ++{ ++ struct yaffs_linux_context *ctxt = yaffs_dev_to_lc(dev); ++ ++ ctxt->bg_running = 0; ++ ++ if (ctxt->bg_thread) { ++ kthread_stop(ctxt->bg_thread); ++ ctxt->bg_thread = NULL; ++ } ++} ++#else ++static int yaffs_bg_thread_fn(void *data) ++{ ++ return 0; ++} ++ ++static int yaffs_bg_start(struct yaffs_dev *dev) ++{ ++ return 0; ++} ++ ++static void yaffs_bg_stop(struct yaffs_dev *dev) ++{ ++} ++#endif ++ ++ ++static void yaffs_flush_inodes(struct super_block *sb) ++{ ++ struct inode *iptr; ++ struct yaffs_obj *obj; ++ ++ list_for_each_entry(iptr, &sb->s_inodes, i_sb_list) { ++ obj = yaffs_inode_to_obj(iptr); ++ if (obj) { ++ yaffs_trace(YAFFS_TRACE_OS, ++ "flushing obj %d", ++ obj->obj_id); ++ yaffs_flush_file(obj, 1, 0); ++ } ++ } ++} ++ ++static void yaffs_flush_super(struct super_block *sb, int do_checkpoint) ++{ ++ struct yaffs_dev *dev = yaffs_super_to_dev(sb); ++ if (!dev) ++ return; ++ ++ yaffs_flush_inodes(sb); ++ yaffs_update_dirty_dirs(dev); ++ yaffs_flush_whole_cache(dev); ++ if (do_checkpoint) ++ yaffs_checkpoint_save(dev); ++} ++ ++static LIST_HEAD(yaffs_context_list); ++struct mutex yaffs_context_lock; ++ ++static void yaffs_put_super(struct super_block *sb) ++{ ++ struct yaffs_dev *dev = yaffs_super_to_dev(sb); ++ struct mtd_info *mtd = yaffs_dev_to_mtd(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS, ++ "yaffs_put_super"); ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, ++ "Shutting down yaffs background thread"); ++ yaffs_bg_stop(dev); ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND, ++ "yaffs background thread shut down"); ++ ++ yaffs_gross_lock(dev); ++ ++ yaffs_flush_super(sb, 1); ++ ++ yaffs_deinitialise(dev); ++ ++ yaffs_gross_unlock(dev); ++ ++ mutex_lock(&yaffs_context_lock); ++ list_del_init(&(yaffs_dev_to_lc(dev)->context_list)); ++ mutex_unlock(&yaffs_context_lock); ++ ++ if (yaffs_dev_to_lc(dev)->spare_buffer) { ++ kfree(yaffs_dev_to_lc(dev)->spare_buffer); ++ yaffs_dev_to_lc(dev)->spare_buffer = NULL; ++ } ++ ++ kfree(dev); ++ ++ yaffs_put_mtd_device(mtd); ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS, ++ "yaffs_put_super done"); ++} ++ ++ ++static unsigned yaffs_gc_control_callback(struct yaffs_dev *dev) ++{ ++ return yaffs_gc_control; ++} ++ ++ ++#ifdef YAFFS_COMPILE_EXPORTFS ++ ++static struct inode *yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, ++ uint32_t generation) ++{ ++ return Y_IGET(sb, ino); ++} ++ ++static struct dentry *yaffs2_fh_to_dentry(struct super_block *sb, ++ struct fid *fid, int fh_len, ++ int fh_type) ++{ ++ return generic_fh_to_dentry(sb, fid, fh_len, fh_type, ++ yaffs2_nfs_get_inode); ++} ++ ++static struct dentry *yaffs2_fh_to_parent(struct super_block *sb, ++ struct fid *fid, int fh_len, ++ int fh_type) ++{ ++ return generic_fh_to_parent(sb, fid, fh_len, fh_type, ++ yaffs2_nfs_get_inode); ++} ++ ++struct dentry *yaffs2_get_parent(struct dentry *dentry) ++{ ++ ++ struct super_block *sb = dentry->d_inode->i_sb; ++ struct dentry *parent = ERR_PTR(-ENOENT); ++ struct inode *inode; ++ unsigned long parent_ino; ++ struct yaffs_obj *d_obj; ++ struct yaffs_obj *parent_obj; ++ ++ d_obj = yaffs_inode_to_obj(dentry->d_inode); ++ ++ if (d_obj) { ++ parent_obj = d_obj->parent; ++ if (parent_obj) { ++ parent_ino = yaffs_get_obj_inode(parent_obj); ++ inode = Y_IGET(sb, parent_ino); ++ ++ if (IS_ERR(inode)) { ++ parent = ERR_CAST(inode); ++ } else { ++ parent = d_obtain_alias(inode); ++ if (!IS_ERR(parent)) { ++ parent = ERR_PTR(-ENOMEM); ++ iput(inode); ++ } ++ } ++ } ++ } ++ ++ return parent; ++} ++ ++/* Just declare a zero structure as a NULL value implies ++ * using the default functions of exportfs. ++ */ ++ ++static struct export_operations yaffs_export_ops = { ++ .fh_to_dentry = yaffs2_fh_to_dentry, ++ .fh_to_parent = yaffs2_fh_to_parent, ++ .get_parent = yaffs2_get_parent, ++}; ++ ++#endif ++ ++static void yaffs_unstitch_obj(struct inode *inode, struct yaffs_obj *obj) ++{ ++ /* Clear the association between the inode and ++ * the struct yaffs_obj. ++ */ ++ obj->my_inode = NULL; ++ yaffs_inode_to_obj_lv(inode) = NULL; ++ ++ /* If the object freeing was deferred, then the real ++ * free happens now. ++ * This should fix the inode inconsistency problem. ++ */ ++ yaffs_handle_defered_free(obj); ++} ++ ++#ifdef YAFFS_HAS_EVICT_INODE ++/* yaffs_evict_inode combines into one operation what was previously done in ++ * yaffs_clear_inode() and yaffs_delete_inode() ++ * ++ */ ++static void yaffs_evict_inode(struct inode *inode) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ int deleteme = 0; ++ ++ obj = yaffs_inode_to_obj(inode); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_evict_inode: ino %d, count %d %s", ++ (int)inode->i_ino, atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object"); ++ ++ if (!inode->i_nlink && !is_bad_inode(inode)) ++ deleteme = 1; ++ truncate_inode_pages(&inode->i_data, 0); ++ Y_CLEAR_INODE(inode); ++ ++ if (deleteme && obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_del_obj(obj); ++ yaffs_gross_unlock(dev); ++ } ++ if (obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_unstitch_obj(inode, obj); ++ yaffs_gross_unlock(dev); ++ } ++} ++#else ++ ++/* clear is called to tell the fs to release any per-inode data it holds. ++ * The object might still exist on disk and is just being thrown out of the cache ++ * or else the object has actually been deleted and we're being called via ++ * the chain ++ * yaffs_delete_inode() -> clear_inode()->yaffs_clear_inode() ++ */ ++ ++static void yaffs_clear_inode(struct inode *inode) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_dev *dev; ++ ++ obj = yaffs_inode_to_obj(inode); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_clear_inode: ino %d, count %d %s", ++ (int)inode->i_ino, atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object"); ++ ++ if (obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_unstitch_obj(inode, obj); ++ yaffs_gross_unlock(dev); ++ } ++ ++} ++ ++/* delete is called when the link count is zero and the inode ++ * is put (ie. nobody wants to know about it anymore, time to ++ * delete the file). ++ * NB Must call clear_inode() ++ */ ++static void yaffs_delete_inode(struct inode *inode) ++{ ++ struct yaffs_obj *obj = yaffs_inode_to_obj(inode); ++ struct yaffs_dev *dev; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_delete_inode: ino %d, count %d %s", ++ (int)inode->i_ino, atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object"); ++ ++ if (obj) { ++ dev = obj->my_dev; ++ yaffs_gross_lock(dev); ++ yaffs_del_obj(obj); ++ yaffs_gross_unlock(dev); ++ } ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++ truncate_inode_pages(&inode->i_data, 0); ++#endif ++ clear_inode(inode); ++} ++#endif ++ ++ ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) ++{ ++ struct yaffs_dev *dev = yaffs_dentry_to_obj(dentry)->my_dev; ++ struct super_block *sb = dentry->d_sb; ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) ++{ ++ struct yaffs_dev *dev = yaffs_super_to_dev(sb); ++#else ++static int yaffs_statfs(struct super_block *sb, struct statfs *buf) ++{ ++ struct yaffs_dev *dev = yaffs_super_to_dev(sb); ++#endif ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_statfs"); ++ ++ yaffs_gross_lock(dev); ++ ++ buf->f_type = YAFFS_MAGIC; ++ buf->f_bsize = sb->s_blocksize; ++ buf->f_namelen = 255; ++ ++ if (dev->data_bytes_per_chunk & (dev->data_bytes_per_chunk - 1)) { ++ /* Do this if chunk size is not a power of 2 */ ++ ++ uint64_t bytes_in_dev; ++ uint64_t bytes_free; ++ ++ bytes_in_dev = ++ ((uint64_t) ++ ((dev->param.end_block - dev->param.start_block + ++ 1))) * ((uint64_t) (dev->param.chunks_per_block * ++ dev->data_bytes_per_chunk)); ++ ++ do_div(bytes_in_dev, sb->s_blocksize); /* bytes_in_dev becomes the number of blocks */ ++ buf->f_blocks = bytes_in_dev; ++ ++ bytes_free = ((uint64_t) (yaffs_get_n_free_chunks(dev))) * ++ ((uint64_t) (dev->data_bytes_per_chunk)); ++ ++ do_div(bytes_free, sb->s_blocksize); ++ ++ buf->f_bfree = bytes_free; ++ ++ } else if (sb->s_blocksize > dev->data_bytes_per_chunk) { ++ ++ buf->f_blocks = ++ (dev->param.end_block - dev->param.start_block + 1) * ++ dev->param.chunks_per_block / ++ (sb->s_blocksize / dev->data_bytes_per_chunk); ++ buf->f_bfree = ++ yaffs_get_n_free_chunks(dev) / ++ (sb->s_blocksize / dev->data_bytes_per_chunk); ++ } else { ++ buf->f_blocks = ++ (dev->param.end_block - dev->param.start_block + 1) * ++ dev->param.chunks_per_block * ++ (dev->data_bytes_per_chunk / sb->s_blocksize); ++ ++ buf->f_bfree = ++ yaffs_get_n_free_chunks(dev) * ++ (dev->data_bytes_per_chunk / sb->s_blocksize); ++ } ++ ++ buf->f_files = 0; ++ buf->f_ffree = 0; ++ buf->f_bavail = buf->f_bfree; ++ ++ yaffs_gross_unlock(dev); ++ return 0; ++} ++ ++ ++ ++static int yaffs_do_sync_fs(struct super_block *sb, int request_checkpoint) ++{ ++ ++ struct yaffs_dev *dev = yaffs_super_to_dev(sb); ++ unsigned int oneshot_checkpoint = (yaffs_auto_checkpoint & 4); ++ unsigned gc_urgent = yaffs_bg_gc_urgency(dev); ++ int do_checkpoint; ++ int dirty = yaffs_check_super_dirty(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, ++ "yaffs_do_sync_fs: gc-urgency %d %s %s%s", ++ gc_urgent, ++ dirty ? "dirty" : "clean", ++ request_checkpoint ? "checkpoint requested" : "no checkpoint", ++ oneshot_checkpoint ? " one-shot" : ""); ++ ++ yaffs_gross_lock(dev); ++ do_checkpoint = ((request_checkpoint && !gc_urgent) || ++ oneshot_checkpoint) && !dev->is_checkpointed; ++ ++ if (dirty || do_checkpoint) { ++ yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint); ++ yaffs_clear_super_dirty(dev); ++ if (oneshot_checkpoint) ++ yaffs_auto_checkpoint &= ~4; ++ } ++ yaffs_gross_unlock(dev); ++ ++ return 0; ++} ++ ++ ++#ifdef YAFFS_HAS_WRITE_SUPER ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static void yaffs_write_super(struct super_block *sb) ++#else ++static int yaffs_write_super(struct super_block *sb) ++#endif ++{ ++ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2); ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND, ++ "yaffs_write_super %s", ++ request_checkpoint ? " checkpt" : ""); ++ ++ yaffs_do_sync_fs(sb, request_checkpoint); ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) ++ return 0; ++#endif ++} ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_sync_fs(struct super_block *sb, int wait) ++#else ++static int yaffs_sync_fs(struct super_block *sb) ++#endif ++{ ++ unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1); ++ ++ yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC, ++ "yaffs_sync_fs%s", request_checkpoint ? " checkpt" : ""); ++ ++ yaffs_do_sync_fs(sb, request_checkpoint); ++ ++ return 0; ++} ++ ++ ++ ++static const struct super_operations yaffs_super_ops = { ++ .statfs = yaffs_statfs, ++ ++#ifndef YAFFS_USE_OWN_IGET ++ .read_inode = yaffs_read_inode, ++#endif ++#ifdef YAFFS_HAS_PUT_INODE ++ .put_inode = yaffs_put_inode, ++#endif ++ .put_super = yaffs_put_super, ++#ifdef YAFFS_HAS_EVICT_INODE ++ .evict_inode = yaffs_evict_inode, ++#else ++ .delete_inode = yaffs_delete_inode, ++ .clear_inode = yaffs_clear_inode, ++#endif ++ .sync_fs = yaffs_sync_fs, ++#ifdef YAFFS_HAS_WRITE_SUPER ++ .write_super = yaffs_write_super, ++#endif ++}; ++ ++struct yaffs_options { ++ int inband_tags; ++ int skip_checkpoint_read; ++ int skip_checkpoint_write; ++ int no_cache; ++ int tags_ecc_on; ++ int tags_ecc_overridden; ++ int lazy_loading_enabled; ++ int lazy_loading_overridden; ++ int empty_lost_and_found; ++ int empty_lost_and_found_overridden; ++ int disable_summary; ++}; ++ ++#define MAX_OPT_LEN 30 ++static int yaffs_parse_options(struct yaffs_options *options, ++ const char *options_str) ++{ ++ char cur_opt[MAX_OPT_LEN + 1]; ++ int p; ++ int error = 0; ++ ++ /* Parse through the options which is a comma seperated list */ ++ ++ while (options_str && *options_str && !error) { ++ memset(cur_opt, 0, MAX_OPT_LEN + 1); ++ p = 0; ++ ++ while (*options_str == ',') ++ options_str++; ++ ++ while (*options_str && *options_str != ',') { ++ if (p < MAX_OPT_LEN) { ++ cur_opt[p] = *options_str; ++ p++; ++ } ++ options_str++; ++ } ++ ++ if (!strcmp(cur_opt, "inband-tags")) { ++ options->inband_tags = 1; ++ } else if (!strcmp(cur_opt, "tags-ecc-off")) { ++ options->tags_ecc_on = 0; ++ options->tags_ecc_overridden = 1; ++ } else if (!strcmp(cur_opt, "tags-ecc-on")) { ++ options->tags_ecc_on = 1; ++ options->tags_ecc_overridden = 1; ++ } else if (!strcmp(cur_opt, "lazy-loading-off")) { ++ options->lazy_loading_enabled = 0; ++ options->lazy_loading_overridden = 1; ++ } else if (!strcmp(cur_opt, "lazy-loading-on")) { ++ options->lazy_loading_enabled = 1; ++ options->lazy_loading_overridden = 1; ++ } else if (!strcmp(cur_opt, "disable-summary")) { ++ options->disable_summary = 1; ++ } else if (!strcmp(cur_opt, "empty-lost-and-found-off")) { ++ options->empty_lost_and_found = 0; ++ options->empty_lost_and_found_overridden = 1; ++ } else if (!strcmp(cur_opt, "empty-lost-and-found-on")) { ++ options->empty_lost_and_found = 1; ++ options->empty_lost_and_found_overridden = 1; ++ } else if (!strcmp(cur_opt, "no-cache")) { ++ options->no_cache = 1; ++ } else if (!strcmp(cur_opt, "no-checkpoint-read")) { ++ options->skip_checkpoint_read = 1; ++ } else if (!strcmp(cur_opt, "no-checkpoint-write")) { ++ options->skip_checkpoint_write = 1; ++ } else if (!strcmp(cur_opt, "no-checkpoint")) { ++ options->skip_checkpoint_read = 1; ++ options->skip_checkpoint_write = 1; ++ } else { ++ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", ++ cur_opt); ++ error = 1; ++ } ++ } ++ ++ return error; ++} ++ ++ ++static struct dentry *yaffs_make_root(struct inode *inode) ++{ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)) ++ struct dentry *root = d_alloc_root(inode); ++ ++ if (!root) ++ iput(inode); ++ ++ return root; ++#else ++ return d_make_root(inode); ++#endif ++} ++ ++ ++ ++ ++static struct super_block *yaffs_internal_read_super(int yaffs_version, ++ struct super_block *sb, ++ void *data, int silent) ++{ ++ int n_blocks; ++ struct inode *inode = NULL; ++ struct dentry *root; ++ struct yaffs_dev *dev = 0; ++ char devname_buf[BDEVNAME_SIZE + 1]; ++ struct mtd_info *mtd; ++ int err; ++ char *data_str = (char *)data; ++ struct yaffs_linux_context *context = NULL; ++ struct yaffs_param *param; ++ ++ int read_only = 0; ++ int inband_tags = 0; ++ ++ struct yaffs_options options; ++ ++ unsigned mount_id; ++ int found; ++ struct yaffs_linux_context *context_iterator; ++ struct list_head *l; ++ ++ if (!sb) { ++ printk(KERN_INFO "yaffs: sb is NULL\n"); ++ return NULL; ++ } ++ ++ sb->s_magic = YAFFS_MAGIC; ++ sb->s_op = &yaffs_super_ops; ++ sb->s_flags |= MS_NOATIME; ++ ++ read_only = ((sb->s_flags & MS_RDONLY) != 0); ++ ++#ifdef YAFFS_COMPILE_EXPORTFS ++ sb->s_export_op = &yaffs_export_ops; ++#endif ++ ++ if (!sb->s_dev) ++ printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); ++ else if (!yaffs_devname(sb, devname_buf)) ++ printk(KERN_INFO "yaffs: devname is NULL\n"); ++ else ++ printk(KERN_INFO "yaffs: dev is %d name is \"%s\" %s\n", ++ sb->s_dev, ++ yaffs_devname(sb, devname_buf), read_only ? "ro" : "rw"); ++ ++ if (!data_str) ++ data_str = ""; ++ ++ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); ++ ++ memset(&options, 0, sizeof(options)); ++ ++ if (yaffs_parse_options(&options, data_str)) { ++ /* Option parsing failed */ ++ return NULL; ++ } ++ ++ sb->s_blocksize = PAGE_CACHE_SIZE; ++ sb->s_blocksize_bits = PAGE_CACHE_SHIFT; ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_read_super: Using yaffs%d", yaffs_version); ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_read_super: block size %d", (int)(sb->s_blocksize)); ++ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: Attempting MTD mount of %u.%u,\"%s\"", ++ MAJOR(sb->s_dev), MINOR(sb->s_dev), ++ yaffs_devname(sb, devname_buf)); ++ ++ /* Get the device */ ++ mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); ++ if (IS_ERR(mtd)) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs: MTD device %u either not valid or unavailable", ++ MINOR(sb->s_dev)); ++ return NULL; ++ } ++ ++ if (yaffs_auto_select && yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "auto selecting yaffs2"); ++ yaffs_version = 2; ++ } ++ ++ /* Added NCB 26/5/2006 for completeness */ ++ if (yaffs_version == 2 && !options.inband_tags ++ && WRITE_SIZE(mtd) == 512) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "auto selecting yaffs1"); ++ yaffs_version = 1; ++ } ++ ++ if (mtd->oobavail < sizeof(struct yaffs_packed_tags2) || ++ options.inband_tags) ++ inband_tags = 1; ++ ++ if(yaffs_verify_mtd(mtd, yaffs_version, inband_tags) < 0) ++ return NULL; ++ ++ /* OK, so if we got here, we have an MTD that's NAND and looks ++ * like it has the right capabilities ++ * Set the struct yaffs_dev up for mtd ++ */ ++ ++ if (!read_only && !(mtd->flags & MTD_WRITEABLE)) { ++ read_only = 1; ++ printk(KERN_INFO ++ "yaffs: mtd is read only, setting superblock read only\n" ++ ); ++ sb->s_flags |= MS_RDONLY; ++ } ++ ++ dev = kmalloc(sizeof(struct yaffs_dev), GFP_KERNEL); ++ context = kmalloc(sizeof(struct yaffs_linux_context), GFP_KERNEL); ++ ++ if (!dev || !context) { ++ kfree(dev); ++ kfree(context); ++ dev = NULL; ++ context = NULL; ++ ++ /* Deep shit could not allocate device structure */ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs_read_super: Failed trying to allocate struct yaffs_dev." ++ ); ++ return NULL; ++ } ++ memset(dev, 0, sizeof(struct yaffs_dev)); ++ param = &(dev->param); ++ ++ memset(context, 0, sizeof(struct yaffs_linux_context)); ++ dev->os_context = context; ++ INIT_LIST_HEAD(&(context->context_list)); ++ context->dev = dev; ++ context->super = sb; ++ ++ dev->read_only = read_only; ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ sb->s_fs_info = dev; ++#else ++ sb->u.generic_sbp = dev; ++#endif ++ ++ ++ dev->driver_context = mtd; ++ param->name = mtd->name; ++ ++ /* Set up the memory size parameters.... */ ++ ++ ++ param->n_reserved_blocks = 5; ++ param->n_caches = (options.no_cache) ? 0 : 10; ++ param->inband_tags = inband_tags; ++ ++ param->enable_xattr = 1; ++ if (options.lazy_loading_overridden) ++ param->disable_lazy_load = !options.lazy_loading_enabled; ++ ++ param->defered_dir_update = 1; ++ ++ if (options.tags_ecc_overridden) ++ param->no_tags_ecc = !options.tags_ecc_on; ++ ++ param->empty_lost_n_found = 1; ++ param->refresh_period = 500; ++ param->disable_summary = options.disable_summary; ++ ++ ++#ifdef CONFIG_YAFFS_DISABLE_BAD_BLOCK_MARKING ++ param->disable_bad_block_marking = 1; ++#endif ++ if (options.empty_lost_and_found_overridden) ++ param->empty_lost_n_found = options.empty_lost_and_found; ++ ++ /* ... and the functions. */ ++ if (yaffs_version == 2) { ++ param->is_yaffs2 = 1; ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ param->total_bytes_per_chunk = mtd->writesize; ++ param->chunks_per_block = mtd->erasesize / mtd->writesize; ++#else ++ param->total_bytes_per_chunk = mtd->oobblock; ++ param->chunks_per_block = mtd->erasesize / mtd->oobblock; ++#endif ++ n_blocks = YCALCBLOCKS(mtd->size, mtd->erasesize); ++ ++ param->start_block = 0; ++ param->end_block = n_blocks - 1; ++ } else { ++ param->is_yaffs2 = 0; ++ n_blocks = YCALCBLOCKS(mtd->size, ++ YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); ++ ++ param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK; ++ param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK; ++ } ++ ++ param->start_block = 0; ++ param->end_block = n_blocks - 1; ++ ++ yaffs_mtd_drv_install(dev); ++ ++ param->sb_dirty_fn = yaffs_set_super_dirty; ++ param->gc_control_fn = yaffs_gc_control_callback; ++ ++ yaffs_dev_to_lc(dev)->super = sb; ++ ++ param->use_nand_ecc = 1; ++ ++ param->skip_checkpt_rd = options.skip_checkpoint_read; ++ param->skip_checkpt_wr = options.skip_checkpoint_write; ++ ++ mutex_lock(&yaffs_context_lock); ++ /* Get a mount id */ ++ found = 0; ++ for (mount_id = 0; !found; mount_id++) { ++ found = 1; ++ list_for_each(l, &yaffs_context_list) { ++ context_iterator = ++ list_entry(l, struct yaffs_linux_context, ++ context_list); ++ if (context_iterator->mount_id == mount_id) ++ found = 0; ++ } ++ } ++ context->mount_id = mount_id; ++ ++ list_add_tail(&(yaffs_dev_to_lc(dev)->context_list), ++ &yaffs_context_list); ++ mutex_unlock(&yaffs_context_lock); ++ ++ /* Directory search handling... */ ++ INIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->search_contexts)); ++ param->remove_obj_fn = yaffs_remove_obj_callback; ++ ++ mutex_init(&(yaffs_dev_to_lc(dev)->gross_lock)); ++ ++ yaffs_gross_lock(dev); ++ ++ err = yaffs_guts_initialise(dev); ++ ++ yaffs_trace(YAFFS_TRACE_OS, ++ "yaffs_read_super: guts initialised %s", ++ (err == YAFFS_OK) ? "OK" : "FAILED"); ++ ++ if (err == YAFFS_OK) ++ yaffs_bg_start(dev); ++ ++ if (!context->bg_thread) ++ param->defered_dir_update = 0; ++ ++ sb->s_maxbytes = yaffs_max_file_size(dev); ++ ++ /* Release lock before yaffs_get_inode() */ ++ yaffs_gross_unlock(dev); ++ ++ /* Create root inode */ ++ if (err == YAFFS_OK) ++ inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, yaffs_root(dev)); ++ ++ if (!inode) ++ return NULL; ++ ++ inode->i_op = &yaffs_dir_inode_operations; ++ inode->i_fop = &yaffs_dir_operations; ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_read_super: got root inode"); ++ ++ root = yaffs_make_root(inode); ++ ++ if (!root) ++ return NULL; ++ ++ sb->s_root = root; ++ if(!dev->is_checkpointed) ++ yaffs_set_super_dirty(dev); ++ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs_read_super: is_checkpointed %d", ++ dev->is_checkpointed); ++ ++ yaffs_trace(YAFFS_TRACE_OS, "yaffs_read_super: done"); ++ return sb; ++} ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, ++ int silent) ++{ ++ return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; ++} ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) ++static struct dentry *yaffs_mount(struct file_system_type *fs_type, int flags, ++ const char *dev_name, void *data) ++{ ++ return mount_bdev(fs_type, flags, dev_name, data, yaffs_internal_read_super_mtd); ++} ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, ++ void *data, struct vfsmount *mnt) ++{ ++ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs_internal_read_super_mtd, mnt); ++} ++#else ++static struct super_block *yaffs_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, ++ void *data) ++{ ++ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs_internal_read_super_mtd); ++} ++#endif ++ ++static struct file_system_type yaffs_fs_type = { ++ .owner = THIS_MODULE, ++ .name = "yaffs", ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) ++ .mount = yaffs_mount, ++#else ++ .get_sb = yaffs_read_super, ++#endif ++ .kill_sb = kill_block_super, ++ .fs_flags = FS_REQUIRES_DEV, ++}; ++#else ++static struct super_block *yaffs_read_super(struct super_block *sb, void *data, ++ int silent) ++{ ++ return yaffs_internal_read_super(1, sb, data, silent); ++} ++ ++static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, ++ FS_REQUIRES_DEV); ++#endif ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, ++ int silent) ++{ ++ return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; ++} ++ ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) ++static struct dentry *yaffs2_mount(struct file_system_type *fs_type, int flags, ++ const char *dev_name, void *data) ++{ ++ return mount_bdev(fs_type, flags, dev_name, data, yaffs2_internal_read_super_mtd); ++} ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++static int yaffs2_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, void *data, ++ struct vfsmount *mnt) ++{ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs2_internal_read_super_mtd, mnt); ++} ++#else ++static struct super_block *yaffs2_read_super(struct file_system_type *fs, ++ int flags, const char *dev_name, ++ void *data) ++{ ++ ++ return get_sb_bdev(fs, flags, dev_name, data, ++ yaffs2_internal_read_super_mtd); ++} ++#endif ++ ++static struct file_system_type yaffs2_fs_type = { ++ .owner = THIS_MODULE, ++ .name = "yaffs2", ++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39)) ++ .mount = yaffs2_mount, ++#else ++ .get_sb = yaffs2_read_super, ++#endif ++ .kill_sb = kill_block_super, ++ .fs_flags = FS_REQUIRES_DEV, ++}; ++#else ++static struct super_block *yaffs2_read_super(struct super_block *sb, ++ void *data, int silent) ++{ ++ return yaffs_internal_read_super(2, sb, data, silent); ++} ++ ++static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, ++ FS_REQUIRES_DEV); ++#endif ++ ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) ++static struct proc_dir_entry *my_proc_entry; ++ ++static char *yaffs_dump_dev_part0(char *buf, struct yaffs_dev *dev) ++{ ++ struct yaffs_param *param = &dev->param; ++ int bs[10]; ++ ++ yaffs_count_blocks_by_state(dev,bs); ++ ++ buf += sprintf(buf, "start_block.......... %d\n", param->start_block); ++ buf += sprintf(buf, "end_block............ %d\n", param->end_block); ++ buf += sprintf(buf, "total_bytes_per_chunk %d\n", ++ param->total_bytes_per_chunk); ++ buf += sprintf(buf, "use_nand_ecc......... %d\n", param->use_nand_ecc); ++ buf += sprintf(buf, "no_tags_ecc.......... %d\n", param->no_tags_ecc); ++ buf += sprintf(buf, "is_yaffs2............ %d\n", param->is_yaffs2); ++ buf += sprintf(buf, "inband_tags.......... %d\n", param->inband_tags); ++ buf += sprintf(buf, "empty_lost_n_found... %d\n", ++ param->empty_lost_n_found); ++ buf += sprintf(buf, "disable_lazy_load.... %d\n", ++ param->disable_lazy_load); ++ buf += sprintf(buf, "disable_bad_block_mrk %d\n", ++ param->disable_bad_block_marking); ++ buf += sprintf(buf, "refresh_period....... %d\n", ++ param->refresh_period); ++ buf += sprintf(buf, "n_caches............. %d\n", param->n_caches); ++ buf += sprintf(buf, "n_reserved_blocks.... %d\n", ++ param->n_reserved_blocks); ++ buf += sprintf(buf, "always_check_erased.. %d\n", ++ param->always_check_erased); ++ buf += sprintf(buf, "\n"); ++ buf += sprintf(buf, "block count by state\n"); ++ buf += sprintf(buf, "0:%d 1:%d 2:%d 3:%d 4:%d\n", ++ bs[0], bs[1], bs[2], bs[3], bs[4]); ++ buf += sprintf(buf, "5:%d 6:%d 7:%d 8:%d 9:%d\n", ++ bs[5], bs[6], bs[7], bs[8], bs[9]); ++ ++ return buf; ++} ++ ++static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev *dev) ++{ ++ buf += sprintf(buf, "max file size....... %lld\n", ++ (long long) yaffs_max_file_size(dev)); ++ buf += sprintf(buf, "data_bytes_per_chunk. %d\n", ++ dev->data_bytes_per_chunk); ++ buf += sprintf(buf, "chunk_grp_bits....... %d\n", dev->chunk_grp_bits); ++ buf += sprintf(buf, "chunk_grp_size....... %d\n", dev->chunk_grp_size); ++ buf += sprintf(buf, "n_erased_blocks...... %d\n", dev->n_erased_blocks); ++ buf += sprintf(buf, "blocks_in_checkpt.... %d\n", ++ dev->blocks_in_checkpt); ++ buf += sprintf(buf, "\n"); ++ buf += sprintf(buf, "n_tnodes............. %d\n", dev->n_tnodes); ++ buf += sprintf(buf, "n_obj................ %d\n", dev->n_obj); ++ buf += sprintf(buf, "n_free_chunks........ %d\n", dev->n_free_chunks); ++ buf += sprintf(buf, "\n"); ++ buf += sprintf(buf, "n_page_writes........ %u\n", dev->n_page_writes); ++ buf += sprintf(buf, "n_page_reads......... %u\n", dev->n_page_reads); ++ buf += sprintf(buf, "n_erasures........... %u\n", dev->n_erasures); ++ buf += sprintf(buf, "n_gc_copies.......... %u\n", dev->n_gc_copies); ++ buf += sprintf(buf, "all_gcs.............. %u\n", dev->all_gcs); ++ buf += sprintf(buf, "passive_gc_count..... %u\n", ++ dev->passive_gc_count); ++ buf += sprintf(buf, "oldest_dirty_gc_count %u\n", ++ dev->oldest_dirty_gc_count); ++ buf += sprintf(buf, "n_gc_blocks.......... %u\n", dev->n_gc_blocks); ++ buf += sprintf(buf, "bg_gcs............... %u\n", dev->bg_gcs); ++ buf += sprintf(buf, "n_retried_writes..... %u\n", ++ dev->n_retried_writes); ++ buf += sprintf(buf, "n_retired_blocks..... %u\n", ++ dev->n_retired_blocks); ++ buf += sprintf(buf, "n_ecc_fixed.......... %u\n", dev->n_ecc_fixed); ++ buf += sprintf(buf, "n_ecc_unfixed........ %u\n", dev->n_ecc_unfixed); ++ buf += sprintf(buf, "n_tags_ecc_fixed..... %u\n", ++ dev->n_tags_ecc_fixed); ++ buf += sprintf(buf, "n_tags_ecc_unfixed... %u\n", ++ dev->n_tags_ecc_unfixed); ++ buf += sprintf(buf, "cache_hits........... %u\n", dev->cache_hits); ++ buf += sprintf(buf, "n_deleted_files...... %u\n", dev->n_deleted_files); ++ buf += sprintf(buf, "n_unlinked_files..... %u\n", ++ dev->n_unlinked_files); ++ buf += sprintf(buf, "refresh_count........ %u\n", dev->refresh_count); ++ buf += sprintf(buf, "n_bg_deletions....... %u\n", dev->n_bg_deletions); ++ buf += sprintf(buf, "tags_used............ %u\n", dev->tags_used); ++ buf += sprintf(buf, "summary_used......... %u\n", dev->summary_used); ++ ++ return buf; ++} ++ ++static int yaffs_proc_read(char *page, ++ char **start, ++ off_t offset, int count, int *eof, void *data) ++{ ++ struct list_head *item; ++ char *buf = page; ++ int step = offset; ++ int n = 0; ++ ++ /* Get proc_file_read() to step 'offset' by one on each sucessive call. ++ * We use 'offset' (*ppos) to indicate where we are in dev_list. ++ * This also assumes the user has posted a read buffer large ++ * enough to hold the complete output; but that's life in /proc. ++ */ ++ ++ *(int *)start = 1; ++ ++ /* Print header first */ ++ if (step == 0) ++ buf += ++ sprintf(buf, ++ "Multi-version YAFFS built:" __DATE__ " " __TIME__ ++ "\n"); ++ else if (step == 1) ++ buf += sprintf(buf, "\n"); ++ else { ++ step -= 2; ++ ++ mutex_lock(&yaffs_context_lock); ++ ++ /* Locate and print the Nth entry. Order N-squared but N is small. */ ++ list_for_each(item, &yaffs_context_list) { ++ struct yaffs_linux_context *dc = ++ list_entry(item, struct yaffs_linux_context, ++ context_list); ++ struct yaffs_dev *dev = dc->dev; ++ ++ if (n < (step & ~1)) { ++ n += 2; ++ continue; ++ } ++ if ((step & 1) == 0) { ++ buf += ++ sprintf(buf, "\nDevice %d \"%s\"\n", n, ++ dev->param.name); ++ buf = yaffs_dump_dev_part0(buf, dev); ++ } else { ++ buf = yaffs_dump_dev_part1(buf, dev); ++ } ++ ++ break; ++ } ++ mutex_unlock(&yaffs_context_lock); ++ } ++ ++ return buf - page < count ? buf - page : count; ++} ++ ++/** ++ * Set the verbosity of the warnings and error messages. ++ * ++ * Note that the names can only be a..z or _ with the current code. ++ */ ++ ++static struct { ++ char *mask_name; ++ unsigned mask_bitfield; ++} mask_flags[] = { ++ {"allocate", YAFFS_TRACE_ALLOCATE}, ++ {"always", YAFFS_TRACE_ALWAYS}, ++ {"background", YAFFS_TRACE_BACKGROUND}, ++ {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, ++ {"buffers", YAFFS_TRACE_BUFFERS}, ++ {"bug", YAFFS_TRACE_BUG}, ++ {"checkpt", YAFFS_TRACE_CHECKPOINT}, ++ {"deletion", YAFFS_TRACE_DELETION}, ++ {"erase", YAFFS_TRACE_ERASE}, ++ {"error", YAFFS_TRACE_ERROR}, ++ {"gc_detail", YAFFS_TRACE_GC_DETAIL}, ++ {"gc", YAFFS_TRACE_GC}, ++ {"lock", YAFFS_TRACE_LOCK}, ++ {"mtd", YAFFS_TRACE_MTD}, ++ {"nandaccess", YAFFS_TRACE_NANDACCESS}, ++ {"os", YAFFS_TRACE_OS}, ++ {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, ++ {"scan", YAFFS_TRACE_SCAN}, ++ {"mount", YAFFS_TRACE_MOUNT}, ++ {"tracing", YAFFS_TRACE_TRACING}, ++ {"sync", YAFFS_TRACE_SYNC}, ++ {"write", YAFFS_TRACE_WRITE}, ++ {"verify", YAFFS_TRACE_VERIFY}, ++ {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, ++ {"verify_full", YAFFS_TRACE_VERIFY_FULL}, ++ {"verify_all", YAFFS_TRACE_VERIFY_ALL}, ++ {"all", 0xffffffff}, ++ {"none", 0}, ++ {NULL, 0}, ++}; ++ ++#define MAX_MASK_NAME_LENGTH 40 ++static int yaffs_proc_write_trace_options(struct file *file, const char *buf, ++ unsigned long count, void *data) ++{ ++ unsigned rg = 0, mask_bitfield; ++ char *end; ++ char *mask_name; ++ const char *x; ++ char substring[MAX_MASK_NAME_LENGTH + 1]; ++ int i; ++ int done = 0; ++ int add, len = 0; ++ int pos = 0; ++ ++ rg = yaffs_trace_mask; ++ ++ while (!done && (pos < count)) { ++ done = 1; ++ while ((pos < count) && isspace(buf[pos])) ++ pos++; ++ ++ switch (buf[pos]) { ++ case '+': ++ case '-': ++ case '=': ++ add = buf[pos]; ++ pos++; ++ break; ++ ++ default: ++ add = ' '; ++ break; ++ } ++ mask_name = NULL; ++ ++ mask_bitfield = simple_strtoul(buf + pos, &end, 0); ++ ++ if (end > buf + pos) { ++ mask_name = "numeral"; ++ len = end - (buf + pos); ++ pos += len; ++ done = 0; ++ } else { ++ for (x = buf + pos, i = 0; ++ (*x == '_' || (*x >= 'a' && *x <= 'z')) && ++ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) ++ substring[i] = *x; ++ substring[i] = '\0'; ++ ++ for (i = 0; mask_flags[i].mask_name != NULL; i++) { ++ if (strcmp(substring, mask_flags[i].mask_name) ++ == 0) { ++ mask_name = mask_flags[i].mask_name; ++ mask_bitfield = ++ mask_flags[i].mask_bitfield; ++ done = 0; ++ break; ++ } ++ } ++ } ++ ++ if (mask_name != NULL) { ++ done = 0; ++ switch (add) { ++ case '-': ++ rg &= ~mask_bitfield; ++ break; ++ case '+': ++ rg |= mask_bitfield; ++ break; ++ case '=': ++ rg = mask_bitfield; ++ break; ++ default: ++ rg |= mask_bitfield; ++ break; ++ } ++ } ++ } ++ ++ yaffs_trace_mask = rg | YAFFS_TRACE_ALWAYS; ++ ++ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_trace_mask); ++ ++ if (rg & YAFFS_TRACE_ALWAYS) { ++ for (i = 0; mask_flags[i].mask_name != NULL; i++) { ++ char flag; ++ flag = ((rg & mask_flags[i].mask_bitfield) == ++ mask_flags[i].mask_bitfield) ? '+' : '-'; ++ printk(KERN_DEBUG "%c%s\n", flag, ++ mask_flags[i].mask_name); ++ } ++ } ++ ++ return count; ++} ++ ++/* Debug strings are of the form: ++ * .bnnn print info on block n ++ * .cobjn,chunkn print nand chunk id for objn:chunkn ++ */ ++ ++static int yaffs_proc_debug_write(struct file *file, const char *buf, ++ unsigned long count, void *data) ++{ ++ ++ char str[100]; ++ char *p0; ++ char *p1; ++ long p1_val; ++ long p0_val; ++ char cmd; ++ struct list_head *item; ++ ++ memset(str, 0, sizeof(str)); ++ memcpy(str, buf, min(count, sizeof(str) -1)); ++ ++ cmd = str[1]; ++ ++ p0 = str + 2; ++ ++ p1 = p0; ++ ++ while (*p1 && *p1 != ',') { ++ p1++; ++ } ++ *p1 = '\0'; ++ p1++; ++ ++ p0_val = simple_strtol(p0, NULL, 0); ++ p1_val = simple_strtol(p1, NULL, 0); ++ ++ ++ mutex_lock(&yaffs_context_lock); ++ ++ /* Locate and print the Nth entry. Order N-squared but N is small. */ ++ list_for_each(item, &yaffs_context_list) { ++ struct yaffs_linux_context *dc = ++ list_entry(item, struct yaffs_linux_context, ++ context_list); ++ struct yaffs_dev *dev = dc->dev; ++ ++ if (cmd == 'b') { ++ struct yaffs_block_info *bi; ++ ++ bi = yaffs_get_block_info(dev,p0_val); ++ ++ if(bi) { ++ printk("Block %d: state %d, retire %d, use %d, seq %d\n", ++ (int)p0_val, bi->block_state, ++ bi->needs_retiring, bi->pages_in_use, ++ bi->seq_number); ++ } ++ } else if (cmd == 'c') { ++ struct yaffs_obj *obj; ++ int nand_chunk; ++ ++ obj = yaffs_find_by_number(dev, p0_val); ++ if (!obj) ++ printk("No obj %d\n", (int)p0_val); ++ else { ++ if(p1_val == 0) ++ nand_chunk = obj->hdr_chunk; ++ else ++ nand_chunk = ++ yaffs_find_chunk_in_file(obj, ++ p1_val, NULL); ++ printk("Nand chunk for %d:%d is %d\n", ++ (int)p0_val, (int)p1_val, nand_chunk); ++ } ++ } ++ } ++ ++ mutex_unlock(&yaffs_context_lock); ++ ++ return count; ++} ++ ++static int yaffs_proc_write(struct file *file, const char *buf, ++ unsigned long count, void *data) ++{ ++ if (buf[0] == '.') ++ return yaffs_proc_debug_write(file, buf, count, data); ++ return yaffs_proc_write_trace_options(file, buf, count, data); ++} ++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) */ ++ ++/* Stuff to handle installation of file systems */ ++struct file_system_to_install { ++ struct file_system_type *fst; ++ int installed; ++}; ++ ++static struct file_system_to_install fs_to_install[] = { ++ {&yaffs_fs_type, 0}, ++ {&yaffs2_fs_type, 0}, ++ {NULL, 0} ++}; ++ ++static int __init init_yaffs_fs(void) ++{ ++ int error = 0; ++ struct file_system_to_install *fsinst; ++ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs built " __DATE__ " " __TIME__ " Installing."); ++ ++ mutex_init(&yaffs_context_lock); ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) ++ /* Install the proc_fs entries */ ++ my_proc_entry = create_proc_entry("yaffs", ++ S_IRUGO | S_IFREG, YPROC_ROOT); ++ ++ if (my_proc_entry) { ++ my_proc_entry->write_proc = yaffs_proc_write; ++ my_proc_entry->read_proc = yaffs_proc_read; ++ my_proc_entry->data = NULL; ++ } else { ++ return -ENOMEM; ++ } ++#endif ++ ++ /* Now add the file system entries */ ++ ++ fsinst = fs_to_install; ++ ++ while (fsinst->fst && !error) { ++ error = register_filesystem(fsinst->fst); ++ if (!error) ++ fsinst->installed = 1; ++ fsinst++; ++ } ++ ++ /* Any errors? uninstall */ ++ if (error) { ++ fsinst = fs_to_install; ++ ++ while (fsinst->fst) { ++ if (fsinst->installed) { ++ unregister_filesystem(fsinst->fst); ++ fsinst->installed = 0; ++ } ++ fsinst++; ++ } ++ } ++ ++ return error; ++} ++ ++static void __exit exit_yaffs_fs(void) ++{ ++ ++ struct file_system_to_install *fsinst; ++ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "yaffs built " __DATE__ " " __TIME__ " removing."); ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) ++ remove_proc_entry("yaffs", YPROC_ROOT); ++#endif ++ ++ fsinst = fs_to_install; ++ ++ while (fsinst->fst) { ++ if (fsinst->installed) { ++ unregister_filesystem(fsinst->fst); ++ fsinst->installed = 0; ++ } ++ fsinst++; ++ } ++} ++ ++module_init(init_yaffs_fs) ++ module_exit(exit_yaffs_fs) ++ ++ MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); ++MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2011"); ++MODULE_LICENSE("GPL"); +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.c linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,422 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_yaffs1.h" ++#include "yportenv.h" ++#include "yaffs_trace.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_nand.h" ++#include "yaffs_attribs.h" ++ ++int yaffs1_scan(struct yaffs_dev *dev) ++{ ++ struct yaffs_ext_tags tags; ++ int blk; ++ int result; ++ int chunk; ++ int c; ++ int deleted; ++ enum yaffs_block_state state; ++ LIST_HEAD(hard_list); ++ struct yaffs_block_info *bi; ++ u32 seq_number; ++ struct yaffs_obj_hdr *oh; ++ struct yaffs_obj *in; ++ struct yaffs_obj *parent; ++ int alloc_failed = 0; ++ struct yaffs_shadow_fixer *shadow_fixers = NULL; ++ u8 *chunk_data; ++ ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "yaffs1_scan starts intstartblk %d intendblk %d...", ++ dev->internal_start_block, dev->internal_end_block); ++ ++ chunk_data = yaffs_get_temp_buffer(dev); ++ ++ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; ++ ++ /* Scan all the blocks to determine their state */ ++ bi = dev->block_info; ++ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; ++ blk++) { ++ yaffs_clear_chunk_bits(dev, blk); ++ bi->pages_in_use = 0; ++ bi->soft_del_pages = 0; ++ ++ yaffs_query_init_block_state(dev, blk, &state, &seq_number); ++ ++ bi->block_state = state; ++ bi->seq_number = seq_number; ++ ++ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->block_state = state = YAFFS_BLOCK_STATE_DEAD; ++ ++ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, ++ "Block scanning block %d state %d seq %d", ++ blk, state, seq_number); ++ ++ if (state == YAFFS_BLOCK_STATE_DEAD) { ++ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, ++ "block %d is bad", blk); ++ } else if (state == YAFFS_BLOCK_STATE_EMPTY) { ++ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "Block empty "); ++ dev->n_erased_blocks++; ++ dev->n_free_chunks += dev->param.chunks_per_block; ++ } ++ bi++; ++ } ++ ++ /* For each block.... */ ++ for (blk = dev->internal_start_block; ++ !alloc_failed && blk <= dev->internal_end_block; blk++) { ++ ++ cond_resched(); ++ ++ bi = yaffs_get_block_info(dev, blk); ++ state = bi->block_state; ++ ++ deleted = 0; ++ ++ /* For each chunk in each block that needs scanning.... */ ++ for (c = 0; ++ !alloc_failed && c < dev->param.chunks_per_block && ++ state == YAFFS_BLOCK_STATE_NEEDS_SCAN; c++) { ++ /* Read the tags and decide what to do */ ++ chunk = blk * dev->param.chunks_per_block + c; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, ++ &tags); ++ ++ /* Let's have a good look at this chunk... */ ++ ++ if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED || ++ tags.is_deleted) { ++ /* YAFFS1 only... ++ * A deleted chunk ++ */ ++ deleted++; ++ dev->n_free_chunks++; ++ } else if (!tags.chunk_used) { ++ /* An unassigned chunk in the block ++ * This means that either the block is empty or ++ * this is the one being allocated from ++ */ ++ ++ if (c == 0) { ++ /* We're looking at the first chunk in ++ *the block so the block is unused */ ++ state = YAFFS_BLOCK_STATE_EMPTY; ++ dev->n_erased_blocks++; ++ } else { ++ /* this is the block being allocated */ ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ " Allocating from %d %d", ++ blk, c); ++ state = YAFFS_BLOCK_STATE_ALLOCATING; ++ dev->alloc_block = blk; ++ dev->alloc_page = c; ++ dev->alloc_block_finder = blk; ++ ++ } ++ ++ dev->n_free_chunks += ++ (dev->param.chunks_per_block - c); ++ } else if (tags.chunk_id > 0) { ++ /* chunk_id > 0 so it is a data chunk... */ ++ unsigned int endpos; ++ ++ yaffs_set_chunk_bit(dev, blk, c); ++ bi->pages_in_use++; ++ ++ in = yaffs_find_or_create_by_number(dev, ++ tags.obj_id, ++ YAFFS_OBJECT_TYPE_FILE); ++ /* PutChunkIntoFile checks for a clash ++ * (two data chunks with the same chunk_id). ++ */ ++ ++ if (!in) ++ alloc_failed = 1; ++ ++ if (in) { ++ if (!yaffs_put_chunk_in_file ++ (in, tags.chunk_id, chunk, 1)) ++ alloc_failed = 1; ++ } ++ ++ endpos = ++ (tags.chunk_id - 1) * ++ dev->data_bytes_per_chunk + ++ tags.n_bytes; ++ if (in && ++ in->variant_type == ++ YAFFS_OBJECT_TYPE_FILE && ++ in->variant.file_variant.scanned_size < ++ endpos) { ++ in->variant.file_variant.scanned_size = ++ endpos; ++ if (!dev->param.use_header_file_size) { ++ in->variant. ++ file_variant.file_size = ++ in->variant. ++ file_variant.scanned_size; ++ } ++ ++ } ++ } else { ++ /* chunk_id == 0, so it is an ObjectHeader. ++ * Make the object ++ */ ++ yaffs_set_chunk_bit(dev, blk, c); ++ bi->pages_in_use++; ++ ++ result = yaffs_rd_chunk_tags_nand(dev, chunk, ++ chunk_data, ++ NULL); ++ ++ oh = (struct yaffs_obj_hdr *)chunk_data; ++ ++ in = yaffs_find_by_number(dev, tags.obj_id); ++ if (in && in->variant_type != oh->type) { ++ /* This should not happen, but somehow ++ * Wev'e ended up with an obj_id that ++ * has been reused but not yet deleted, ++ * and worse still it has changed type. ++ * Delete the old object. ++ */ ++ ++ yaffs_del_obj(in); ++ in = NULL; ++ } ++ ++ in = yaffs_find_or_create_by_number(dev, ++ tags.obj_id, ++ oh->type); ++ ++ if (!in) ++ alloc_failed = 1; ++ ++ if (in && oh->shadows_obj > 0) { ++ ++ struct yaffs_shadow_fixer *fixer; ++ fixer = ++ kmalloc(sizeof ++ (struct yaffs_shadow_fixer), ++ GFP_NOFS); ++ if (fixer) { ++ fixer->next = shadow_fixers; ++ shadow_fixers = fixer; ++ fixer->obj_id = tags.obj_id; ++ fixer->shadowed_id = ++ oh->shadows_obj; ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ " Shadow fixer: %d shadows %d", ++ fixer->obj_id, ++ fixer->shadowed_id); ++ ++ } ++ ++ } ++ ++ if (in && in->valid) { ++ /* We have already filled this one. ++ * We have a duplicate and need to ++ * resolve it. */ ++ ++ unsigned existing_serial = in->serial; ++ unsigned new_serial = ++ tags.serial_number; ++ ++ if (((existing_serial + 1) & 3) == ++ new_serial) { ++ /* Use new one - destroy the ++ * exisiting one */ ++ yaffs_chunk_del(dev, ++ in->hdr_chunk, ++ 1, __LINE__); ++ in->valid = 0; ++ } else { ++ /* Use existing - destroy ++ * this one. */ ++ yaffs_chunk_del(dev, chunk, 1, ++ __LINE__); ++ } ++ } ++ ++ if (in && !in->valid && ++ (tags.obj_id == YAFFS_OBJECTID_ROOT || ++ tags.obj_id == ++ YAFFS_OBJECTID_LOSTNFOUND)) { ++ /* We only load some info, don't fiddle ++ * with directory structure */ ++ in->valid = 1; ++ in->variant_type = oh->type; ++ ++ in->yst_mode = oh->yst_mode; ++ yaffs_load_attribs(in, oh); ++ in->hdr_chunk = chunk; ++ in->serial = tags.serial_number; ++ ++ } else if (in && !in->valid) { ++ /* we need to load this info */ ++ ++ in->valid = 1; ++ in->variant_type = oh->type; ++ ++ in->yst_mode = oh->yst_mode; ++ yaffs_load_attribs(in, oh); ++ in->hdr_chunk = chunk; ++ in->serial = tags.serial_number; ++ ++ yaffs_set_obj_name_from_oh(in, oh); ++ in->dirty = 0; ++ ++ /* directory stuff... ++ * hook up to parent ++ */ ++ ++ parent = ++ yaffs_find_or_create_by_number ++ (dev, oh->parent_obj_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ if (!parent) ++ alloc_failed = 1; ++ if (parent && parent->variant_type == ++ YAFFS_OBJECT_TYPE_UNKNOWN) { ++ /* Set up as a directory */ ++ parent->variant_type = ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ INIT_LIST_HEAD(&parent-> ++ variant.dir_variant. ++ children); ++ } else if (!parent || ++ parent->variant_type != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { ++ /* Hoosterman, a problem.... ++ * We're trying to use a ++ * non-directory as a directory ++ */ ++ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." ++ ); ++ parent = dev->lost_n_found; ++ } ++ ++ yaffs_add_obj_to_dir(parent, in); ++ ++ switch (in->variant_type) { ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* Todo got a problem */ ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (dev->param. ++ use_header_file_size) ++ in->variant. ++ file_variant.file_size ++ = yaffs_oh_to_size(oh); ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ in->variant. ++ hardlink_variant.equiv_id = ++ oh->equiv_id; ++ list_add(&in->hard_links, ++ &hard_list); ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ in->variant.symlink_variant. ++ alias = ++ yaffs_clone_str(oh->alias); ++ if (!in->variant. ++ symlink_variant.alias) ++ alloc_failed = 1; ++ break; ++ } ++ } ++ } ++ } ++ ++ if (state == YAFFS_BLOCK_STATE_NEEDS_SCAN) { ++ /* If we got this far while scanning, ++ * then the block is fully allocated. */ ++ state = YAFFS_BLOCK_STATE_FULL; ++ } ++ ++ if (state == YAFFS_BLOCK_STATE_ALLOCATING) { ++ /* If the block was partially allocated then ++ * treat it as fully allocated. */ ++ state = YAFFS_BLOCK_STATE_FULL; ++ dev->alloc_block = -1; ++ } ++ ++ bi->block_state = state; ++ ++ /* Now let's see if it was dirty */ ++ if (bi->pages_in_use == 0 && ++ !bi->has_shrink_hdr && ++ bi->block_state == YAFFS_BLOCK_STATE_FULL) ++ yaffs_block_became_dirty(dev, blk); ++ } ++ ++ /* Ok, we've done all the scanning. ++ * Fix up the hard link chains. ++ * We should now have scanned all the objects, now it's time to add ++ * these hardlinks. ++ */ ++ ++ yaffs_link_fixup(dev, &hard_list); ++ ++ /* ++ * Fix up any shadowed objects. ++ * There should not be more than one of these. ++ */ ++ { ++ struct yaffs_shadow_fixer *fixer; ++ struct yaffs_obj *obj; ++ ++ while (shadow_fixers) { ++ fixer = shadow_fixers; ++ shadow_fixers = fixer->next; ++ /* Complete the rename transaction by deleting the ++ * shadowed object then setting the object header ++ to unshadowed. ++ */ ++ obj = yaffs_find_by_number(dev, fixer->shadowed_id); ++ if (obj) ++ yaffs_del_obj(obj); ++ ++ obj = yaffs_find_by_number(dev, fixer->obj_id); ++ ++ if (obj) ++ yaffs_update_oh(obj, NULL, 1, 0, 0, NULL); ++ ++ kfree(fixer); ++ } ++ } ++ ++ yaffs_release_temp_buffer(dev, chunk_data); ++ ++ if (alloc_failed) ++ return YAFFS_FAIL; ++ ++ yaffs_trace(YAFFS_TRACE_SCAN, "yaffs1_scan ends"); ++ ++ return YAFFS_OK; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.h linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs1.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs1.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,22 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_YAFFS1_H__ ++#define __YAFFS_YAFFS1_H__ ++ ++#include "yaffs_guts.h" ++int yaffs1_scan(struct yaffs_dev *dev); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.c linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.c +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.c 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,1534 @@ ++/* ++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include "yaffs_guts.h" ++#include "yaffs_trace.h" ++#include "yaffs_yaffs2.h" ++#include "yaffs_checkptrw.h" ++#include "yaffs_bitmap.h" ++#include "yaffs_nand.h" ++#include "yaffs_getblockinfo.h" ++#include "yaffs_verify.h" ++#include "yaffs_attribs.h" ++#include "yaffs_summary.h" ++ ++/* ++ * Checkpoints are really no benefit on very small partitions. ++ * ++ * To save space on small partitions don't bother with checkpoints unless ++ * the partition is at least this big. ++ */ ++#define YAFFS_CHECKPOINT_MIN_BLOCKS 60 ++#define YAFFS_SMALL_HOLE_THRESHOLD 4 ++ ++/* ++ * Oldest Dirty Sequence Number handling. ++ */ ++ ++/* yaffs_calc_oldest_dirty_seq() ++ * yaffs2_find_oldest_dirty_seq() ++ * Calculate the oldest dirty sequence number if we don't know it. ++ */ ++void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev) ++{ ++ int i; ++ unsigned seq; ++ unsigned block_no = 0; ++ struct yaffs_block_info *b; ++ ++ if (!dev->param.is_yaffs2) ++ return; ++ ++ /* Find the oldest dirty sequence number. */ ++ seq = dev->seq_number + 1; ++ b = dev->block_info; ++ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { ++ if (b->block_state == YAFFS_BLOCK_STATE_FULL && ++ (b->pages_in_use - b->soft_del_pages) < ++ dev->param.chunks_per_block && ++ b->seq_number < seq) { ++ seq = b->seq_number; ++ block_no = i; ++ } ++ b++; ++ } ++ ++ if (block_no) { ++ dev->oldest_dirty_seq = seq; ++ dev->oldest_dirty_block = block_no; ++ } ++} ++ ++void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev) ++{ ++ if (!dev->param.is_yaffs2) ++ return; ++ ++ if (!dev->oldest_dirty_seq) ++ yaffs_calc_oldest_dirty_seq(dev); ++} ++ ++/* ++ * yaffs_clear_oldest_dirty_seq() ++ * Called when a block is erased or marked bad. (ie. when its seq_number ++ * becomes invalid). If the value matches the oldest then we clear ++ * dev->oldest_dirty_seq to force its recomputation. ++ */ ++void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi) ++{ ++ ++ if (!dev->param.is_yaffs2) ++ return; ++ ++ if (!bi || bi->seq_number == dev->oldest_dirty_seq) { ++ dev->oldest_dirty_seq = 0; ++ dev->oldest_dirty_block = 0; ++ } ++} ++ ++/* ++ * yaffs2_update_oldest_dirty_seq() ++ * Update the oldest dirty sequence number whenever we dirty a block. ++ * Only do this if the oldest_dirty_seq is actually being tracked. ++ */ ++void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no, ++ struct yaffs_block_info *bi) ++{ ++ if (!dev->param.is_yaffs2) ++ return; ++ ++ if (dev->oldest_dirty_seq) { ++ if (dev->oldest_dirty_seq > bi->seq_number) { ++ dev->oldest_dirty_seq = bi->seq_number; ++ dev->oldest_dirty_block = block_no; ++ } ++ } ++} ++ ++int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi) ++{ ++ ++ if (!dev->param.is_yaffs2) ++ return 1; /* disqualification only applies to yaffs2. */ ++ ++ if (!bi->has_shrink_hdr) ++ return 1; /* can gc */ ++ ++ yaffs2_find_oldest_dirty_seq(dev); ++ ++ /* Can't do gc of this block if there are any blocks older than this ++ * one that have discarded pages. ++ */ ++ return (bi->seq_number <= dev->oldest_dirty_seq); ++} ++ ++/* ++ * yaffs2_find_refresh_block() ++ * periodically finds the oldest full block by sequence number for refreshing. ++ * Only for yaffs2. ++ */ ++u32 yaffs2_find_refresh_block(struct yaffs_dev *dev) ++{ ++ u32 b; ++ u32 oldest = 0; ++ u32 oldest_seq = 0; ++ struct yaffs_block_info *bi; ++ ++ if (!dev->param.is_yaffs2) ++ return oldest; ++ ++ /* ++ * If refresh period < 10 then refreshing is disabled. ++ */ ++ if (dev->param.refresh_period < 10) ++ return oldest; ++ ++ /* ++ * Fix broken values. ++ */ ++ if (dev->refresh_skip > dev->param.refresh_period) ++ dev->refresh_skip = dev->param.refresh_period; ++ ++ if (dev->refresh_skip > 0) ++ return oldest; ++ ++ /* ++ * Refresh skip is now zero. ++ * We'll do a refresh this time around.... ++ * Update the refresh skip and find the oldest block. ++ */ ++ dev->refresh_skip = dev->param.refresh_period; ++ dev->refresh_count++; ++ bi = dev->block_info; ++ for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) { ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_FULL) { ++ ++ if (oldest < 1 || bi->seq_number < oldest_seq) { ++ oldest = b; ++ oldest_seq = bi->seq_number; ++ } ++ } ++ bi++; ++ } ++ ++ if (oldest > 0) { ++ yaffs_trace(YAFFS_TRACE_GC, ++ "GC refresh count %d selected block %d with seq_number %d", ++ dev->refresh_count, oldest, oldest_seq); ++ } ++ ++ return oldest; ++} ++ ++int yaffs2_checkpt_required(struct yaffs_dev *dev) ++{ ++ int nblocks; ++ ++ if (!dev->param.is_yaffs2) ++ return 0; ++ ++ nblocks = dev->internal_end_block - dev->internal_start_block + 1; ++ ++ return !dev->param.skip_checkpt_wr && ++ !dev->read_only && (nblocks >= YAFFS_CHECKPOINT_MIN_BLOCKS); ++} ++ ++int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev) ++{ ++ int retval; ++ int n_bytes = 0; ++ int n_blocks; ++ int dev_blocks; ++ ++ if (!dev->param.is_yaffs2) ++ return 0; ++ ++ if (!dev->checkpoint_blocks_required && yaffs2_checkpt_required(dev)) { ++ /* Not a valid value so recalculate */ ++ dev_blocks = dev->param.end_block - dev->param.start_block + 1; ++ n_bytes += sizeof(struct yaffs_checkpt_validity); ++ n_bytes += sizeof(struct yaffs_checkpt_dev); ++ n_bytes += dev_blocks * sizeof(struct yaffs_block_info); ++ n_bytes += dev_blocks * dev->chunk_bit_stride; ++ n_bytes += ++ (sizeof(struct yaffs_checkpt_obj) + sizeof(u32)) * ++ dev->n_obj; ++ n_bytes += (dev->tnode_size + sizeof(u32)) * dev->n_tnodes; ++ n_bytes += sizeof(struct yaffs_checkpt_validity); ++ n_bytes += sizeof(u32); /* checksum */ ++ ++ /* Round up and add 2 blocks to allow for some bad blocks, ++ * so add 3 */ ++ ++ n_blocks = ++ (n_bytes / ++ (dev->data_bytes_per_chunk * ++ dev->param.chunks_per_block)) + 3; ++ ++ dev->checkpoint_blocks_required = n_blocks; ++ } ++ ++ retval = dev->checkpoint_blocks_required - dev->blocks_in_checkpt; ++ if (retval < 0) ++ retval = 0; ++ return retval; ++} ++ ++/*--------------------- Checkpointing --------------------*/ ++ ++static int yaffs2_wr_checkpt_validity_marker(struct yaffs_dev *dev, int head) ++{ ++ struct yaffs_checkpt_validity cp; ++ ++ memset(&cp, 0, sizeof(cp)); ++ ++ cp.struct_type = sizeof(cp); ++ cp.magic = YAFFS_MAGIC; ++ cp.version = YAFFS_CHECKPOINT_VERSION; ++ cp.head = (head) ? 1 : 0; ++ ++ return (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)) ? 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_validity_marker(struct yaffs_dev *dev, int head) ++{ ++ struct yaffs_checkpt_validity cp; ++ int ok; ++ ++ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ ++ if (ok) ++ ok = (cp.struct_type == sizeof(cp)) && ++ (cp.magic == YAFFS_MAGIC) && ++ (cp.version == YAFFS_CHECKPOINT_VERSION) && ++ (cp.head == ((head) ? 1 : 0)); ++ return ok ? 1 : 0; ++} ++ ++static void yaffs2_dev_to_checkpt_dev(struct yaffs_checkpt_dev *cp, ++ struct yaffs_dev *dev) ++{ ++ cp->n_erased_blocks = dev->n_erased_blocks; ++ cp->alloc_block = dev->alloc_block; ++ cp->alloc_page = dev->alloc_page; ++ cp->n_free_chunks = dev->n_free_chunks; ++ ++ cp->n_deleted_files = dev->n_deleted_files; ++ cp->n_unlinked_files = dev->n_unlinked_files; ++ cp->n_bg_deletions = dev->n_bg_deletions; ++ cp->seq_number = dev->seq_number; ++ ++} ++ ++static void yaffs_checkpt_dev_to_dev(struct yaffs_dev *dev, ++ struct yaffs_checkpt_dev *cp) ++{ ++ dev->n_erased_blocks = cp->n_erased_blocks; ++ dev->alloc_block = cp->alloc_block; ++ dev->alloc_page = cp->alloc_page; ++ dev->n_free_chunks = cp->n_free_chunks; ++ ++ dev->n_deleted_files = cp->n_deleted_files; ++ dev->n_unlinked_files = cp->n_unlinked_files; ++ dev->n_bg_deletions = cp->n_bg_deletions; ++ dev->seq_number = cp->seq_number; ++} ++ ++static int yaffs2_wr_checkpt_dev(struct yaffs_dev *dev) ++{ ++ struct yaffs_checkpt_dev cp; ++ u32 n_bytes; ++ u32 n_blocks = dev->internal_end_block - dev->internal_start_block + 1; ++ int ok; ++ ++ /* Write device runtime values */ ++ yaffs2_dev_to_checkpt_dev(&cp, dev); ++ cp.struct_type = sizeof(cp); ++ ++ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (!ok) ++ return 0; ++ ++ /* Write block info */ ++ n_bytes = n_blocks * sizeof(struct yaffs_block_info); ++ ok = (yaffs2_checkpt_wr(dev, dev->block_info, n_bytes) == n_bytes); ++ if (!ok) ++ return 0; ++ ++ /* Write chunk bits */ ++ n_bytes = n_blocks * dev->chunk_bit_stride; ++ ok = (yaffs2_checkpt_wr(dev, dev->chunk_bits, n_bytes) == n_bytes); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_dev(struct yaffs_dev *dev) ++{ ++ struct yaffs_checkpt_dev cp; ++ u32 n_bytes; ++ u32 n_blocks = ++ (dev->internal_end_block - dev->internal_start_block + 1); ++ int ok; ++ ++ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (!ok) ++ return 0; ++ ++ if (cp.struct_type != sizeof(cp)) ++ return 0; ++ ++ yaffs_checkpt_dev_to_dev(dev, &cp); ++ ++ n_bytes = n_blocks * sizeof(struct yaffs_block_info); ++ ++ ok = (yaffs2_checkpt_rd(dev, dev->block_info, n_bytes) == n_bytes); ++ ++ if (!ok) ++ return 0; ++ ++ n_bytes = n_blocks * dev->chunk_bit_stride; ++ ++ ok = (yaffs2_checkpt_rd(dev, dev->chunk_bits, n_bytes) == n_bytes); ++ ++ return ok ? 1 : 0; ++} ++ ++static void yaffs2_obj_checkpt_obj(struct yaffs_checkpt_obj *cp, ++ struct yaffs_obj *obj) ++{ ++ cp->obj_id = obj->obj_id; ++ cp->parent_id = (obj->parent) ? obj->parent->obj_id : 0; ++ cp->hdr_chunk = obj->hdr_chunk; ++ cp->variant_type = obj->variant_type; ++ cp->deleted = obj->deleted; ++ cp->soft_del = obj->soft_del; ++ cp->unlinked = obj->unlinked; ++ cp->fake = obj->fake; ++ cp->rename_allowed = obj->rename_allowed; ++ cp->unlink_allowed = obj->unlink_allowed; ++ cp->serial = obj->serial; ++ cp->n_data_chunks = obj->n_data_chunks; ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ cp->size_or_equiv_obj = obj->variant.file_variant.file_size; ++ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ cp->size_or_equiv_obj = obj->variant.hardlink_variant.equiv_id; ++} ++ ++static int yaffs2_checkpt_obj_to_obj(struct yaffs_obj *obj, ++ struct yaffs_checkpt_obj *cp) ++{ ++ struct yaffs_obj *parent; ++ ++ if (obj->variant_type != cp->variant_type) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "Checkpoint read object %d type %d chunk %d does not match existing object type %d", ++ cp->obj_id, cp->variant_type, cp->hdr_chunk, ++ obj->variant_type); ++ return 0; ++ } ++ ++ obj->obj_id = cp->obj_id; ++ ++ if (cp->parent_id) ++ parent = yaffs_find_or_create_by_number(obj->my_dev, ++ cp->parent_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ else ++ parent = NULL; ++ ++ if (parent) { ++ if (parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ yaffs_trace(YAFFS_TRACE_ALWAYS, ++ "Checkpoint read object %d parent %d type %d chunk %d Parent type, %d, not directory", ++ cp->obj_id, cp->parent_id, ++ cp->variant_type, cp->hdr_chunk, ++ parent->variant_type); ++ return 0; ++ } ++ yaffs_add_obj_to_dir(parent, obj); ++ } ++ ++ obj->hdr_chunk = cp->hdr_chunk; ++ obj->variant_type = cp->variant_type; ++ obj->deleted = cp->deleted; ++ obj->soft_del = cp->soft_del; ++ obj->unlinked = cp->unlinked; ++ obj->fake = cp->fake; ++ obj->rename_allowed = cp->rename_allowed; ++ obj->unlink_allowed = cp->unlink_allowed; ++ obj->serial = cp->serial; ++ obj->n_data_chunks = cp->n_data_chunks; ++ ++ if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) ++ obj->variant.file_variant.file_size = cp->size_or_equiv_obj; ++ else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) ++ obj->variant.hardlink_variant.equiv_id = cp->size_or_equiv_obj; ++ ++ if (obj->hdr_chunk > 0) ++ obj->lazy_loaded = 1; ++ return 1; ++} ++ ++static int yaffs2_checkpt_tnode_worker(struct yaffs_obj *in, ++ struct yaffs_tnode *tn, u32 level, ++ int chunk_offset) ++{ ++ int i; ++ struct yaffs_dev *dev = in->my_dev; ++ int ok = 1; ++ u32 base_offset; ++ ++ if (!tn) ++ return 1; ++ ++ if (level > 0) { ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { ++ if (!tn->internal[i]) ++ continue; ++ ok = yaffs2_checkpt_tnode_worker(in, ++ tn->internal[i], ++ level - 1, ++ (chunk_offset << ++ YAFFS_TNODES_INTERNAL_BITS) + i); ++ } ++ return ok; ++ } ++ ++ /* Level 0 tnode */ ++ base_offset = chunk_offset << YAFFS_TNODES_LEVEL0_BITS; ++ ok = (yaffs2_checkpt_wr(dev, &base_offset, sizeof(base_offset)) == ++ sizeof(base_offset)); ++ if (ok) ++ ok = (yaffs2_checkpt_wr(dev, tn, dev->tnode_size) == ++ dev->tnode_size); ++ ++ return ok; ++} ++ ++static int yaffs2_wr_checkpt_tnodes(struct yaffs_obj *obj) ++{ ++ u32 end_marker = ~0; ++ int ok = 1; ++ ++ if (obj->variant_type != YAFFS_OBJECT_TYPE_FILE) ++ return ok; ++ ++ ok = yaffs2_checkpt_tnode_worker(obj, ++ obj->variant.file_variant.top, ++ obj->variant.file_variant. ++ top_level, 0); ++ if (ok) ++ ok = (yaffs2_checkpt_wr(obj->my_dev, &end_marker, ++ sizeof(end_marker)) == sizeof(end_marker)); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_tnodes(struct yaffs_obj *obj) ++{ ++ u32 base_chunk; ++ int ok = 1; ++ struct yaffs_dev *dev = obj->my_dev; ++ struct yaffs_file_var *file_stuct_ptr = &obj->variant.file_variant; ++ struct yaffs_tnode *tn; ++ int nread = 0; ++ ++ ok = (yaffs2_checkpt_rd(dev, &base_chunk, sizeof(base_chunk)) == ++ sizeof(base_chunk)); ++ ++ while (ok && (~base_chunk)) { ++ nread++; ++ /* Read level 0 tnode */ ++ ++ tn = yaffs_get_tnode(dev); ++ if (tn) ++ ok = (yaffs2_checkpt_rd(dev, tn, dev->tnode_size) == ++ dev->tnode_size); ++ else ++ ok = 0; ++ ++ if (tn && ok) ++ ok = yaffs_add_find_tnode_0(dev, ++ file_stuct_ptr, ++ base_chunk, tn) ? 1 : 0; ++ ++ if (ok) ++ ok = (yaffs2_checkpt_rd ++ (dev, &base_chunk, ++ sizeof(base_chunk)) == sizeof(base_chunk)); ++ } ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "Checkpoint read tnodes %d records, last %d. ok %d", ++ nread, base_chunk, ok); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_wr_checkpt_objs(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_checkpt_obj cp; ++ int i; ++ int ok = 1; ++ struct list_head *lh; ++ ++ /* Iterate through the objects in each hash entry, ++ * dumping them to the checkpointing stream. ++ */ ++ ++ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { ++ list_for_each(lh, &dev->obj_bucket[i].list) { ++ obj = list_entry(lh, struct yaffs_obj, hash_link); ++ if (!obj->defered_free) { ++ yaffs2_obj_checkpt_obj(&cp, obj); ++ cp.struct_type = sizeof(cp); ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "Checkpoint write object %d parent %d type %d chunk %d obj addr %p", ++ cp.obj_id, cp.parent_id, ++ cp.variant_type, cp.hdr_chunk, obj); ++ ++ ok = (yaffs2_checkpt_wr(dev, &cp, ++ sizeof(cp)) == sizeof(cp)); ++ ++ if (ok && ++ obj->variant_type == ++ YAFFS_OBJECT_TYPE_FILE) ++ ok = yaffs2_wr_checkpt_tnodes(obj); ++ } ++ } ++ } ++ ++ /* Dump end of list */ ++ memset(&cp, 0xff, sizeof(struct yaffs_checkpt_obj)); ++ cp.struct_type = sizeof(cp); ++ ++ if (ok) ++ ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_rd_checkpt_objs(struct yaffs_dev *dev) ++{ ++ struct yaffs_obj *obj; ++ struct yaffs_checkpt_obj cp; ++ int ok = 1; ++ int done = 0; ++ LIST_HEAD(hard_list); ++ ++ ++ while (ok && !done) { ++ ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (cp.struct_type != sizeof(cp)) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "struct size %d instead of %d ok %d", ++ cp.struct_type, (int)sizeof(cp), ok); ++ ok = 0; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "Checkpoint read object %d parent %d type %d chunk %d ", ++ cp.obj_id, cp.parent_id, cp.variant_type, ++ cp.hdr_chunk); ++ ++ if (ok && cp.obj_id == ~0) { ++ done = 1; ++ } else if (ok) { ++ obj = ++ yaffs_find_or_create_by_number(dev, cp.obj_id, ++ cp.variant_type); ++ if (obj) { ++ ok = yaffs2_checkpt_obj_to_obj(obj, &cp); ++ if (!ok) ++ break; ++ if (obj->variant_type == ++ YAFFS_OBJECT_TYPE_FILE) { ++ ok = yaffs2_rd_checkpt_tnodes(obj); ++ } else if (obj->variant_type == ++ YAFFS_OBJECT_TYPE_HARDLINK) { ++ list_add(&obj->hard_links, &hard_list); ++ } ++ } else { ++ ok = 0; ++ } ++ } ++ } ++ ++ if (ok) ++ yaffs_link_fixup(dev, &hard_list); ++ ++ return ok ? 1 : 0; ++} ++ ++static int yaffs2_wr_checkpt_sum(struct yaffs_dev *dev) ++{ ++ u32 checkpt_sum; ++ int ok; ++ ++ yaffs2_get_checkpt_sum(dev, &checkpt_sum); ++ ++ ok = (yaffs2_checkpt_wr(dev, &checkpt_sum, sizeof(checkpt_sum)) == ++ sizeof(checkpt_sum)); ++ ++ if (!ok) ++ return 0; ++ ++ return 1; ++} ++ ++static int yaffs2_rd_checkpt_sum(struct yaffs_dev *dev) ++{ ++ u32 checkpt_sum0; ++ u32 checkpt_sum1; ++ int ok; ++ ++ yaffs2_get_checkpt_sum(dev, &checkpt_sum0); ++ ++ ok = (yaffs2_checkpt_rd(dev, &checkpt_sum1, sizeof(checkpt_sum1)) == ++ sizeof(checkpt_sum1)); ++ ++ if (!ok) ++ return 0; ++ ++ if (checkpt_sum0 != checkpt_sum1) ++ return 0; ++ ++ return 1; ++} ++ ++static int yaffs2_wr_checkpt_data(struct yaffs_dev *dev) ++{ ++ int ok = 1; ++ ++ if (!yaffs2_checkpt_required(dev)) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "skipping checkpoint write"); ++ ok = 0; ++ } ++ ++ if (ok) ++ ok = yaffs2_checkpt_open(dev, 1); ++ ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "write checkpoint validity"); ++ ok = yaffs2_wr_checkpt_validity_marker(dev, 1); ++ } ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "write checkpoint device"); ++ ok = yaffs2_wr_checkpt_dev(dev); ++ } ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "write checkpoint objects"); ++ ok = yaffs2_wr_checkpt_objs(dev); ++ } ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "write checkpoint validity"); ++ ok = yaffs2_wr_checkpt_validity_marker(dev, 0); ++ } ++ ++ if (ok) ++ ok = yaffs2_wr_checkpt_sum(dev); ++ ++ if (!yaffs_checkpt_close(dev)) ++ ok = 0; ++ ++ if (ok) ++ dev->is_checkpointed = 1; ++ else ++ dev->is_checkpointed = 0; ++ ++ return dev->is_checkpointed; ++} ++ ++static int yaffs2_rd_checkpt_data(struct yaffs_dev *dev) ++{ ++ int ok = 1; ++ ++ if (!dev->param.is_yaffs2) ++ ok = 0; ++ ++ if (ok && dev->param.skip_checkpt_rd) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "skipping checkpoint read"); ++ ok = 0; ++ } ++ ++ if (ok) ++ ok = yaffs2_checkpt_open(dev, 0); /* open for read */ ++ ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "read checkpoint validity"); ++ ok = yaffs2_rd_checkpt_validity_marker(dev, 1); ++ } ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "read checkpoint device"); ++ ok = yaffs2_rd_checkpt_dev(dev); ++ } ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "read checkpoint objects"); ++ ok = yaffs2_rd_checkpt_objs(dev); ++ } ++ if (ok) { ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "read checkpoint validity"); ++ ok = yaffs2_rd_checkpt_validity_marker(dev, 0); ++ } ++ ++ if (ok) { ++ ok = yaffs2_rd_checkpt_sum(dev); ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "read checkpoint checksum %d", ok); ++ } ++ ++ if (!yaffs_checkpt_close(dev)) ++ ok = 0; ++ ++ if (ok) ++ dev->is_checkpointed = 1; ++ else ++ dev->is_checkpointed = 0; ++ ++ return ok ? 1 : 0; ++} ++ ++void yaffs2_checkpt_invalidate(struct yaffs_dev *dev) ++{ ++ if (dev->is_checkpointed || dev->blocks_in_checkpt > 0) { ++ dev->is_checkpointed = 0; ++ yaffs2_checkpt_invalidate_stream(dev); ++ } ++ if (dev->param.sb_dirty_fn) ++ dev->param.sb_dirty_fn(dev); ++} ++ ++int yaffs_checkpoint_save(struct yaffs_dev *dev) ++{ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "save entry: is_checkpointed %d", ++ dev->is_checkpointed); ++ ++ yaffs_verify_objects(dev); ++ yaffs_verify_blocks(dev); ++ yaffs_verify_free_chunks(dev); ++ ++ if (!dev->is_checkpointed) { ++ yaffs2_checkpt_invalidate(dev); ++ yaffs2_wr_checkpt_data(dev); ++ } ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT | YAFFS_TRACE_MOUNT, ++ "save exit: is_checkpointed %d", ++ dev->is_checkpointed); ++ ++ return dev->is_checkpointed; ++} ++ ++int yaffs2_checkpt_restore(struct yaffs_dev *dev) ++{ ++ int retval; ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "restore entry: is_checkpointed %d", ++ dev->is_checkpointed); ++ ++ retval = yaffs2_rd_checkpt_data(dev); ++ ++ if (dev->is_checkpointed) { ++ yaffs_verify_objects(dev); ++ yaffs_verify_blocks(dev); ++ yaffs_verify_free_chunks(dev); ++ } ++ ++ yaffs_trace(YAFFS_TRACE_CHECKPOINT, ++ "restore exit: is_checkpointed %d", ++ dev->is_checkpointed); ++ ++ return retval; ++} ++ ++int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size) ++{ ++ /* if new_size > old_file_size. ++ * We're going to be writing a hole. ++ * If the hole is small then write zeros otherwise write a start ++ * of hole marker. ++ */ ++ loff_t old_file_size; ++ loff_t increase; ++ int small_hole; ++ int result = YAFFS_OK; ++ struct yaffs_dev *dev = NULL; ++ u8 *local_buffer = NULL; ++ int small_increase_ok = 0; ++ ++ if (!obj) ++ return YAFFS_FAIL; ++ ++ if (obj->variant_type != YAFFS_OBJECT_TYPE_FILE) ++ return YAFFS_FAIL; ++ ++ dev = obj->my_dev; ++ ++ /* Bail out if not yaffs2 mode */ ++ if (!dev->param.is_yaffs2) ++ return YAFFS_OK; ++ ++ old_file_size = obj->variant.file_variant.file_size; ++ ++ if (new_size <= old_file_size) ++ return YAFFS_OK; ++ ++ increase = new_size - old_file_size; ++ ++ if (increase < YAFFS_SMALL_HOLE_THRESHOLD * dev->data_bytes_per_chunk && ++ yaffs_check_alloc_available(dev, YAFFS_SMALL_HOLE_THRESHOLD + 1)) ++ small_hole = 1; ++ else ++ small_hole = 0; ++ ++ if (small_hole) ++ local_buffer = yaffs_get_temp_buffer(dev); ++ ++ if (local_buffer) { ++ /* fill hole with zero bytes */ ++ loff_t pos = old_file_size; ++ int this_write; ++ int written; ++ memset(local_buffer, 0, dev->data_bytes_per_chunk); ++ small_increase_ok = 1; ++ ++ while (increase > 0 && small_increase_ok) { ++ this_write = increase; ++ if (this_write > dev->data_bytes_per_chunk) ++ this_write = dev->data_bytes_per_chunk; ++ written = ++ yaffs_do_file_wr(obj, local_buffer, pos, this_write, ++ 0); ++ if (written == this_write) { ++ pos += this_write; ++ increase -= this_write; ++ } else { ++ small_increase_ok = 0; ++ } ++ } ++ ++ yaffs_release_temp_buffer(dev, local_buffer); ++ ++ /* If out of space then reverse any chunks we've added */ ++ if (!small_increase_ok) ++ yaffs_resize_file_down(obj, old_file_size); ++ } ++ ++ if (!small_increase_ok && ++ obj->parent && ++ obj->parent->obj_id != YAFFS_OBJECTID_UNLINKED && ++ obj->parent->obj_id != YAFFS_OBJECTID_DELETED) { ++ /* Write a hole start header with the old file size */ ++ yaffs_update_oh(obj, NULL, 0, 1, 0, NULL); ++ } ++ ++ return result; ++} ++ ++struct yaffs_block_index { ++ int seq; ++ int block; ++}; ++ ++static int yaffs2_ybicmp(const void *a, const void *b) ++{ ++ int aseq = ((struct yaffs_block_index *)a)->seq; ++ int bseq = ((struct yaffs_block_index *)b)->seq; ++ int ablock = ((struct yaffs_block_index *)a)->block; ++ int bblock = ((struct yaffs_block_index *)b)->block; ++ ++ if (aseq == bseq) ++ return ablock - bblock; ++ ++ return aseq - bseq; ++} ++ ++static inline int yaffs2_scan_chunk(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi, ++ int blk, int chunk_in_block, ++ int *found_chunks, ++ u8 *chunk_data, ++ struct list_head *hard_list, ++ int summary_available) ++{ ++ struct yaffs_obj_hdr *oh; ++ struct yaffs_obj *in; ++ struct yaffs_obj *parent; ++ int equiv_id; ++ loff_t file_size; ++ int is_shrink; ++ int is_unlinked; ++ struct yaffs_ext_tags tags; ++ int result; ++ int alloc_failed = 0; ++ int chunk = blk * dev->param.chunks_per_block + chunk_in_block; ++ struct yaffs_file_var *file_var; ++ struct yaffs_hardlink_var *hl_var; ++ struct yaffs_symlink_var *sl_var; ++ ++ if (summary_available) { ++ result = yaffs_summary_fetch(dev, &tags, chunk_in_block); ++ tags.seq_number = bi->seq_number; ++ } ++ ++ if (!summary_available || tags.obj_id == 0) { ++ result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags); ++ dev->tags_used++; ++ } else { ++ dev->summary_used++; ++ } ++ ++ /* Let's have a good look at this chunk... */ ++ ++ if (!tags.chunk_used) { ++ /* An unassigned chunk in the block. ++ * If there are used chunks after this one, then ++ * it is a chunk that was skipped due to failing ++ * the erased check. Just skip it so that it can ++ * be deleted. ++ * But, more typically, We get here when this is ++ * an unallocated chunk and his means that ++ * either the block is empty or this is the one ++ * being allocated from ++ */ ++ ++ if (*found_chunks) { ++ /* This is a chunk that was skipped due ++ * to failing the erased check */ ++ } else if (chunk_in_block == 0) { ++ /* We're looking at the first chunk in ++ * the block so the block is unused */ ++ bi->block_state = YAFFS_BLOCK_STATE_EMPTY; ++ dev->n_erased_blocks++; ++ } else { ++ if (bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN || ++ bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING) { ++ if (dev->seq_number == bi->seq_number) { ++ /* Allocating from this block*/ ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ " Allocating from %d %d", ++ blk, chunk_in_block); ++ ++ bi->block_state = ++ YAFFS_BLOCK_STATE_ALLOCATING; ++ dev->alloc_block = blk; ++ dev->alloc_page = chunk_in_block; ++ dev->alloc_block_finder = blk; ++ } else { ++ /* This is a partially written block ++ * that is not the current ++ * allocation block. ++ */ ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "Partially written block %d detected. gc will fix this.", ++ blk); ++ } ++ } ++ } ++ ++ dev->n_free_chunks++; ++ ++ } else if (tags.ecc_result == ++ YAFFS_ECC_RESULT_UNFIXED) { ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ " Unfixed ECC in chunk(%d:%d), chunk ignored", ++ blk, chunk_in_block); ++ dev->n_free_chunks++; ++ } else if (tags.obj_id > YAFFS_MAX_OBJECT_ID || ++ tags.chunk_id > YAFFS_MAX_CHUNK_ID || ++ tags.obj_id == YAFFS_OBJECTID_SUMMARY || ++ (tags.chunk_id > 0 && ++ tags.n_bytes > dev->data_bytes_per_chunk) || ++ tags.seq_number != bi->seq_number) { ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "Chunk (%d:%d) with bad tags:obj = %d, chunk_id = %d, n_bytes = %d, ignored", ++ blk, chunk_in_block, tags.obj_id, ++ tags.chunk_id, tags.n_bytes); ++ dev->n_free_chunks++; ++ } else if (tags.chunk_id > 0) { ++ /* chunk_id > 0 so it is a data chunk... */ ++ loff_t endpos; ++ loff_t chunk_base = (tags.chunk_id - 1) * ++ dev->data_bytes_per_chunk; ++ ++ *found_chunks = 1; ++ ++ yaffs_set_chunk_bit(dev, blk, chunk_in_block); ++ bi->pages_in_use++; ++ ++ in = yaffs_find_or_create_by_number(dev, ++ tags.obj_id, ++ YAFFS_OBJECT_TYPE_FILE); ++ if (!in) ++ /* Out of memory */ ++ alloc_failed = 1; ++ ++ if (in && ++ in->variant_type == YAFFS_OBJECT_TYPE_FILE && ++ chunk_base < in->variant.file_variant.shrink_size) { ++ /* This has not been invalidated by ++ * a resize */ ++ if (!yaffs_put_chunk_in_file(in, tags.chunk_id, ++ chunk, -1)) ++ alloc_failed = 1; ++ ++ /* File size is calculated by looking at ++ * the data chunks if we have not ++ * seen an object header yet. ++ * Stop this practice once we find an ++ * object header. ++ */ ++ endpos = chunk_base + tags.n_bytes; ++ ++ if (!in->valid && ++ in->variant.file_variant.scanned_size < endpos) { ++ in->variant.file_variant. ++ scanned_size = endpos; ++ in->variant.file_variant. ++ file_size = endpos; ++ } ++ } else if (in) { ++ /* This chunk has been invalidated by a ++ * resize, or a past file deletion ++ * so delete the chunk*/ ++ yaffs_chunk_del(dev, chunk, 1, __LINE__); ++ } ++ } else { ++ /* chunk_id == 0, so it is an ObjectHeader. ++ * Thus, we read in the object header and make ++ * the object ++ */ ++ *found_chunks = 1; ++ ++ yaffs_set_chunk_bit(dev, blk, chunk_in_block); ++ bi->pages_in_use++; ++ ++ oh = NULL; ++ in = NULL; ++ ++ if (tags.extra_available) { ++ in = yaffs_find_or_create_by_number(dev, ++ tags.obj_id, ++ tags.extra_obj_type); ++ if (!in) ++ alloc_failed = 1; ++ } ++ ++ if (!in || ++ (!in->valid && dev->param.disable_lazy_load) || ++ tags.extra_shadows || ++ (!in->valid && (tags.obj_id == YAFFS_OBJECTID_ROOT || ++ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND))) { ++ ++ /* If we don't have valid info then we ++ * need to read the chunk ++ * TODO In future we can probably defer ++ * reading the chunk and living with ++ * invalid data until needed. ++ */ ++ ++ result = yaffs_rd_chunk_tags_nand(dev, ++ chunk, ++ chunk_data, ++ NULL); ++ ++ oh = (struct yaffs_obj_hdr *)chunk_data; ++ ++ if (dev->param.inband_tags) { ++ /* Fix up the header if they got ++ * corrupted by inband tags */ ++ oh->shadows_obj = ++ oh->inband_shadowed_obj_id; ++ oh->is_shrink = ++ oh->inband_is_shrink; ++ } ++ ++ if (!in) { ++ in = yaffs_find_or_create_by_number(dev, ++ tags.obj_id, oh->type); ++ if (!in) ++ alloc_failed = 1; ++ } ++ } ++ ++ if (!in) { ++ /* TODO Hoosterman we have a problem! */ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: Could not make object for object %d at chunk %d during scan", ++ tags.obj_id, chunk); ++ return YAFFS_FAIL; ++ } ++ ++ if (in->valid) { ++ /* We have already filled this one. ++ * We have a duplicate that will be ++ * discarded, but we first have to suck ++ * out resize info if it is a file. ++ */ ++ if ((in->variant_type == YAFFS_OBJECT_TYPE_FILE) && ++ ((oh && oh->type == YAFFS_OBJECT_TYPE_FILE) || ++ (tags.extra_available && ++ tags.extra_obj_type == YAFFS_OBJECT_TYPE_FILE) ++ )) { ++ loff_t this_size = (oh) ? ++ yaffs_oh_to_size(oh) : ++ tags.extra_file_size; ++ u32 parent_obj_id = (oh) ? ++ oh->parent_obj_id : ++ tags.extra_parent_id; ++ ++ is_shrink = (oh) ? ++ oh->is_shrink : ++ tags.extra_is_shrink; ++ ++ /* If it is deleted (unlinked ++ * at start also means deleted) ++ * we treat the file size as ++ * being zeroed at this point. ++ */ ++ if (parent_obj_id == YAFFS_OBJECTID_DELETED || ++ parent_obj_id == YAFFS_OBJECTID_UNLINKED) { ++ this_size = 0; ++ is_shrink = 1; ++ } ++ ++ if (is_shrink && ++ in->variant.file_variant.shrink_size > ++ this_size) ++ in->variant.file_variant.shrink_size = ++ this_size; ++ ++ if (is_shrink) ++ bi->has_shrink_hdr = 1; ++ } ++ /* Use existing - destroy this one. */ ++ yaffs_chunk_del(dev, chunk, 1, __LINE__); ++ } ++ ++ if (!in->valid && in->variant_type != ++ (oh ? oh->type : tags.extra_obj_type)) { ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: Bad type, %d != %d, for object %d at chunk %d during scan", ++ oh ? oh->type : tags.extra_obj_type, ++ in->variant_type, tags.obj_id, ++ chunk); ++ in = yaffs_retype_obj(in, oh ? oh->type : tags.extra_obj_type); ++ } ++ ++ if (!in->valid && ++ (tags.obj_id == YAFFS_OBJECTID_ROOT || ++ tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND)) { ++ /* We only load some info, don't fiddle ++ * with directory structure */ ++ in->valid = 1; ++ ++ if (oh) { ++ in->yst_mode = oh->yst_mode; ++ yaffs_load_attribs(in, oh); ++ in->lazy_loaded = 0; ++ } else { ++ in->lazy_loaded = 1; ++ } ++ in->hdr_chunk = chunk; ++ ++ } else if (!in->valid) { ++ /* we need to load this info */ ++ in->valid = 1; ++ in->hdr_chunk = chunk; ++ if (oh) { ++ in->variant_type = oh->type; ++ in->yst_mode = oh->yst_mode; ++ yaffs_load_attribs(in, oh); ++ ++ if (oh->shadows_obj > 0) ++ yaffs_handle_shadowed_obj(dev, ++ oh->shadows_obj, 1); ++ ++ yaffs_set_obj_name_from_oh(in, oh); ++ parent = yaffs_find_or_create_by_number(dev, ++ oh->parent_obj_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ file_size = yaffs_oh_to_size(oh); ++ is_shrink = oh->is_shrink; ++ equiv_id = oh->equiv_id; ++ } else { ++ in->variant_type = tags.extra_obj_type; ++ parent = yaffs_find_or_create_by_number(dev, ++ tags.extra_parent_id, ++ YAFFS_OBJECT_TYPE_DIRECTORY); ++ file_size = tags.extra_file_size; ++ is_shrink = tags.extra_is_shrink; ++ equiv_id = tags.extra_equiv_id; ++ in->lazy_loaded = 1; ++ } ++ in->dirty = 0; ++ ++ if (!parent) ++ alloc_failed = 1; ++ ++ /* directory stuff... ++ * hook up to parent ++ */ ++ ++ if (parent && ++ parent->variant_type == YAFFS_OBJECT_TYPE_UNKNOWN) { ++ /* Set up as a directory */ ++ parent->variant_type = ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ INIT_LIST_HEAD(&parent-> ++ variant.dir_variant.children); ++ } else if (!parent || ++ parent->variant_type != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { ++ /* Hoosterman, another problem.... ++ * Trying to use a non-directory as a directory ++ */ ++ ++ yaffs_trace(YAFFS_TRACE_ERROR, ++ "yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." ++ ); ++ parent = dev->lost_n_found; ++ } ++ yaffs_add_obj_to_dir(parent, in); ++ ++ is_unlinked = (parent == dev->del_dir) || ++ (parent == dev->unlinked_dir); ++ ++ if (is_shrink) ++ /* Mark the block */ ++ bi->has_shrink_hdr = 1; ++ ++ /* Note re hardlinks. ++ * Since we might scan a hardlink before its equivalent ++ * object is scanned we put them all in a list. ++ * After scanning is complete, we should have all the ++ * objects, so we run through this list and fix up all ++ * the chains. ++ */ ++ ++ switch (in->variant_type) { ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ /* Todo got a problem */ ++ break; ++ case YAFFS_OBJECT_TYPE_FILE: ++ file_var = &in->variant.file_variant; ++ if (file_var->scanned_size < file_size) { ++ /* This covers the case where the file ++ * size is greater than the data held. ++ * This will happen if the file is ++ * resized to be larger than its ++ * current data extents. ++ */ ++ file_var->file_size = file_size; ++ file_var->scanned_size = file_size; ++ } ++ ++ if (file_var->shrink_size > file_size) ++ file_var->shrink_size = file_size; ++ ++ break; ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ hl_var = &in->variant.hardlink_variant; ++ if (!is_unlinked) { ++ hl_var->equiv_id = equiv_id; ++ list_add(&in->hard_links, hard_list); ++ } ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ /* Do nothing */ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ sl_var = &in->variant.symlink_variant; ++ if (oh) { ++ sl_var->alias = ++ yaffs_clone_str(oh->alias); ++ if (!sl_var->alias) ++ alloc_failed = 1; ++ } ++ break; ++ } ++ } ++ } ++ return alloc_failed ? YAFFS_FAIL : YAFFS_OK; ++} ++ ++int yaffs2_scan_backwards(struct yaffs_dev *dev) ++{ ++ int blk; ++ int block_iter; ++ int start_iter; ++ int end_iter; ++ int n_to_scan = 0; ++ enum yaffs_block_state state; ++ int c; ++ int deleted; ++ LIST_HEAD(hard_list); ++ struct yaffs_block_info *bi; ++ u32 seq_number; ++ int n_blocks = dev->internal_end_block - dev->internal_start_block + 1; ++ u8 *chunk_data; ++ int found_chunks; ++ int alloc_failed = 0; ++ struct yaffs_block_index *block_index = NULL; ++ int alt_block_index = 0; ++ int summary_available; ++ ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "yaffs2_scan_backwards starts intstartblk %d intendblk %d...", ++ dev->internal_start_block, dev->internal_end_block); ++ ++ dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER; ++ ++ block_index = ++ kmalloc(n_blocks * sizeof(struct yaffs_block_index), GFP_NOFS); ++ ++ if (!block_index) { ++ block_index = ++ vmalloc(n_blocks * sizeof(struct yaffs_block_index)); ++ alt_block_index = 1; ++ } ++ ++ if (!block_index) { ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "yaffs2_scan_backwards() could not allocate block index!" ++ ); ++ return YAFFS_FAIL; ++ } ++ ++ dev->blocks_in_checkpt = 0; ++ ++ chunk_data = yaffs_get_temp_buffer(dev); ++ ++ /* Scan all the blocks to determine their state */ ++ bi = dev->block_info; ++ for (blk = dev->internal_start_block; blk <= dev->internal_end_block; ++ blk++) { ++ yaffs_clear_chunk_bits(dev, blk); ++ bi->pages_in_use = 0; ++ bi->soft_del_pages = 0; ++ ++ yaffs_query_init_block_state(dev, blk, &state, &seq_number); ++ ++ bi->block_state = state; ++ bi->seq_number = seq_number; ++ ++ if (bi->seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->block_state = YAFFS_BLOCK_STATE_DEAD; ++ ++ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, ++ "Block scanning block %d state %d seq %d", ++ blk, bi->block_state, seq_number); ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { ++ dev->blocks_in_checkpt++; ++ ++ } else if (bi->block_state == YAFFS_BLOCK_STATE_DEAD) { ++ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, ++ "block %d is bad", blk); ++ } else if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { ++ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "Block empty "); ++ dev->n_erased_blocks++; ++ dev->n_free_chunks += dev->param.chunks_per_block; ++ } else if (bi->block_state == ++ YAFFS_BLOCK_STATE_NEEDS_SCAN) { ++ /* Determine the highest sequence number */ ++ if (seq_number >= YAFFS_LOWEST_SEQUENCE_NUMBER && ++ seq_number < YAFFS_HIGHEST_SEQUENCE_NUMBER) { ++ block_index[n_to_scan].seq = seq_number; ++ block_index[n_to_scan].block = blk; ++ n_to_scan++; ++ if (seq_number >= dev->seq_number) ++ dev->seq_number = seq_number; ++ } else { ++ /* TODO: Nasty sequence number! */ ++ yaffs_trace(YAFFS_TRACE_SCAN, ++ "Block scanning block %d has bad sequence number %d", ++ blk, seq_number); ++ } ++ } ++ bi++; ++ } ++ ++ yaffs_trace(YAFFS_TRACE_ALWAYS, "%d blocks to be sorted...", n_to_scan); ++ ++ cond_resched(); ++ ++ /* Sort the blocks by sequence number */ ++ sort(block_index, n_to_scan, sizeof(struct yaffs_block_index), ++ yaffs2_ybicmp, NULL); ++ ++ cond_resched(); ++ ++ yaffs_trace(YAFFS_TRACE_SCAN, "...done"); ++ ++ /* Now scan the blocks looking at the data. */ ++ start_iter = 0; ++ end_iter = n_to_scan - 1; ++ yaffs_trace(YAFFS_TRACE_SCAN_DEBUG, "%d blocks to scan", n_to_scan); ++ ++ /* For each block.... backwards */ ++ for (block_iter = end_iter; ++ !alloc_failed && block_iter >= start_iter; ++ block_iter--) { ++ /* Cooperative multitasking! This loop can run for so ++ long that watchdog timers expire. */ ++ cond_resched(); ++ ++ /* get the block to scan in the correct order */ ++ blk = block_index[block_iter].block; ++ bi = yaffs_get_block_info(dev, blk); ++ deleted = 0; ++ ++ summary_available = yaffs_summary_read(dev, dev->sum_tags, blk); ++ ++ /* For each chunk in each block that needs scanning.... */ ++ found_chunks = 0; ++ if (summary_available) ++ c = dev->chunks_per_summary - 1; ++ else ++ c = dev->param.chunks_per_block - 1; ++ ++ for (/* c is already initialised */; ++ !alloc_failed && c >= 0 && ++ (bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN || ++ bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING); ++ c--) { ++ /* Scan backwards... ++ * Read the tags and decide what to do ++ */ ++ if (yaffs2_scan_chunk(dev, bi, blk, c, ++ &found_chunks, chunk_data, ++ &hard_list, summary_available) == ++ YAFFS_FAIL) ++ alloc_failed = 1; ++ } ++ ++ if (bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCAN) { ++ /* If we got this far while scanning, then the block ++ * is fully allocated. */ ++ bi->block_state = YAFFS_BLOCK_STATE_FULL; ++ } ++ ++ /* Now let's see if it was dirty */ ++ if (bi->pages_in_use == 0 && ++ !bi->has_shrink_hdr && ++ bi->block_state == YAFFS_BLOCK_STATE_FULL) { ++ yaffs_block_became_dirty(dev, blk); ++ } ++ } ++ ++ yaffs_skip_rest_of_block(dev); ++ ++ if (alt_block_index) ++ vfree(block_index); ++ else ++ kfree(block_index); ++ ++ /* Ok, we've done all the scanning. ++ * Fix up the hard link chains. ++ * We have scanned all the objects, now it's time to add these ++ * hardlinks. ++ */ ++ yaffs_link_fixup(dev, &hard_list); ++ ++ yaffs_release_temp_buffer(dev, chunk_data); ++ ++ if (alloc_failed) ++ return YAFFS_FAIL; ++ ++ yaffs_trace(YAFFS_TRACE_SCAN, "yaffs2_scan_backwards ends"); ++ ++ return YAFFS_OK; ++} +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.h linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.h +--- linux-3.15-rc5.orig/fs/yaffs2/yaffs_yaffs2.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yaffs_yaffs2.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,39 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_YAFFS2_H__ ++#define __YAFFS_YAFFS2_H__ ++ ++#include "yaffs_guts.h" ++ ++void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev); ++void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev); ++void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev, ++ struct yaffs_block_info *bi); ++void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no, ++ struct yaffs_block_info *bi); ++int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi); ++u32 yaffs2_find_refresh_block(struct yaffs_dev *dev); ++int yaffs2_checkpt_required(struct yaffs_dev *dev); ++int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev); ++ ++void yaffs2_checkpt_invalidate(struct yaffs_dev *dev); ++int yaffs2_checkpt_save(struct yaffs_dev *dev); ++int yaffs2_checkpt_restore(struct yaffs_dev *dev); ++ ++int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size); ++int yaffs2_scan_backwards(struct yaffs_dev *dev); ++ ++#endif +diff -Nur linux-3.15-rc5.orig/fs/yaffs2/yportenv.h linux-3.15-rc5/fs/yaffs2/yportenv.h +--- linux-3.15-rc5.orig/fs/yaffs2/yportenv.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc5/fs/yaffs2/yportenv.h 2014-05-17 01:53:27.000000000 +0200 +@@ -0,0 +1,85 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2011 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YPORTENV_H__ ++#define __YPORTENV_H__ ++ ++/* ++ * Define the MTD version in terms of Linux Kernel versions ++ * This allows yaffs to be used independantly of the kernel ++ * as well as with it. ++ */ ++ ++#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c)) ++ ++#ifdef YAFFS_OUT_OF_TREE ++#include "moduleconfig.h" ++#endif ++ ++#include ++#define MTD_VERSION_CODE LINUX_VERSION_CODE ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) ++#include ++#endif ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/* These type wrappings are used to support Unicode names in WinCE. */ ++#define YCHAR char ++#define YUCHAR unsigned char ++#define _Y(x) x ++ ++#define YAFFS_LOSTNFOUND_NAME "lost+found" ++#define YAFFS_LOSTNFOUND_PREFIX "obj" ++ ++ ++#define YAFFS_ROOT_MODE 0755 ++#define YAFFS_LOSTNFOUND_MODE 0700 ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++#define Y_CURRENT_TIME CURRENT_TIME.tv_sec ++#define Y_TIME_CONVERT(x) (x).tv_sec ++#else ++#define Y_CURRENT_TIME CURRENT_TIME ++#define Y_TIME_CONVERT(x) (x) ++#endif ++ ++#define compile_time_assertion(assertion) \ ++ ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) ++ ++ ++#define yaffs_printf(msk, fmt, ...) \ ++ printk(KERN_DEBUG "yaffs: " fmt "\n", ##__VA_ARGS__) ++ ++#define yaffs_trace(msk, fmt, ...) do { \ ++ if (yaffs_trace_mask & (msk)) \ ++ printk(KERN_DEBUG "yaffs: " fmt "\n", ##__VA_ARGS__); \ ++} while (0) ++ ++ ++#endif diff --git a/target/linux/patches/3.15-rc8/ppc64-missing-zlib.patch b/target/linux/patches/3.15-rc8/ppc64-missing-zlib.patch new file mode 100644 index 000000000..c6e0616be --- /dev/null +++ b/target/linux/patches/3.15-rc8/ppc64-missing-zlib.patch @@ -0,0 +1,11 @@ +diff -Nur linux-3.11.5.orig/arch/powerpc/platforms/pseries/Kconfig linux-3.11.5/arch/powerpc/platforms/pseries/Kconfig +--- linux-3.11.5.orig/arch/powerpc/platforms/pseries/Kconfig 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/arch/powerpc/platforms/pseries/Kconfig 2013-11-01 15:23:09.000000000 +0100 +@@ -17,6 +17,7 @@ + select PPC_NATIVE + select PPC_PCI_CHOICE if EXPERT + select ZLIB_DEFLATE ++ select ZLIB_INFLATE + select PPC_DOORBELL + select HAVE_CONTEXT_TRACKING + select HOTPLUG_CPU if SMP diff --git a/target/linux/patches/3.15-rc8/relocs.patch b/target/linux/patches/3.15-rc8/relocs.patch new file mode 100644 index 000000000..69a7c88a9 --- /dev/null +++ b/target/linux/patches/3.15-rc8/relocs.patch @@ -0,0 +1,2709 @@ +diff -Nur linux-3.13.6.orig/arch/x86/tools/relocs.c linux-3.13.6/arch/x86/tools/relocs.c +--- linux-3.13.6.orig/arch/x86/tools/relocs.c 2014-03-07 07:07:02.000000000 +0100 ++++ linux-3.13.6/arch/x86/tools/relocs.c 2014-03-15 19:39:45.000000000 +0100 +@@ -126,6 +126,7 @@ + + if (err) { + regerror(err, &sym_regex_c[i], errbuf, sizeof errbuf); ++ printf("foo: %s\n", sym_regex[i]); + die("%s", errbuf); + } + } +diff -Nur linux-3.13.6.orig/arch/x86/tools/relocs.h linux-3.13.6/arch/x86/tools/relocs.h +--- linux-3.13.6.orig/arch/x86/tools/relocs.h 2014-03-07 07:07:02.000000000 +0100 ++++ linux-3.13.6/arch/x86/tools/relocs.h 2014-03-15 18:48:40.000000000 +0100 +@@ -9,11 +9,19 @@ + #include + #include + #include ++#ifdef __linux__ + #include + #include + #define USE_BSD + #include ++#else ++#include "elf.h" ++#endif ++#ifdef __APPLE__ ++#include ++#else + #include ++#endif + #include + + void die(char *fmt, ...); +diff -Nur linux-3.13.6.orig/tools/include/elf.h linux-3.13.6/tools/include/elf.h +--- linux-3.13.6.orig/tools/include/elf.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.13.6/tools/include/elf.h 2014-03-15 18:47:36.000000000 +0100 +@@ -0,0 +1,2671 @@ ++#ifndef _ELF_H ++#define _ELF_H ++ ++#ifdef __cplusplus ++extern "C" { ++#endif ++ ++#include ++ ++typedef uint16_t Elf32_Half; ++typedef uint16_t Elf64_Half; ++ ++typedef uint32_t Elf32_Word; ++typedef int32_t Elf32_Sword; ++typedef uint32_t Elf64_Word; ++typedef int32_t Elf64_Sword; ++ ++typedef uint64_t Elf32_Xword; ++typedef int64_t Elf32_Sxword; ++typedef uint64_t Elf64_Xword; ++typedef int64_t Elf64_Sxword; ++ ++typedef uint32_t Elf32_Addr; ++typedef uint64_t Elf64_Addr; ++ ++typedef uint32_t Elf32_Off; ++typedef uint64_t Elf64_Off; ++ ++typedef uint16_t Elf32_Section; ++typedef uint16_t Elf64_Section; ++ ++typedef Elf32_Half Elf32_Versym; ++typedef Elf64_Half Elf64_Versym; ++ ++#define EI_NIDENT (16) ++ ++typedef struct { ++ unsigned char e_ident[EI_NIDENT]; ++ Elf32_Half e_type; ++ Elf32_Half e_machine; ++ Elf32_Word e_version; ++ Elf32_Addr e_entry; ++ Elf32_Off e_phoff; ++ Elf32_Off e_shoff; ++ Elf32_Word e_flags; ++ Elf32_Half e_ehsize; ++ Elf32_Half e_phentsize; ++ Elf32_Half e_phnum; ++ Elf32_Half e_shentsize; ++ Elf32_Half e_shnum; ++ Elf32_Half e_shstrndx; ++} Elf32_Ehdr; ++ ++typedef struct { ++ unsigned char e_ident[EI_NIDENT]; ++ Elf64_Half e_type; ++ Elf64_Half e_machine; ++ Elf64_Word e_version; ++ Elf64_Addr e_entry; ++ Elf64_Off e_phoff; ++ Elf64_Off e_shoff; ++ Elf64_Word e_flags; ++ Elf64_Half e_ehsize; ++ Elf64_Half e_phentsize; ++ Elf64_Half e_phnum; ++ Elf64_Half e_shentsize; ++ Elf64_Half e_shnum; ++ Elf64_Half e_shstrndx; ++} Elf64_Ehdr; ++ ++#define EI_MAG0 0 ++#define ELFMAG0 0x7f ++ ++#define EI_MAG1 1 ++#define ELFMAG1 'E' ++ ++#define EI_MAG2 2 ++#define ELFMAG2 'L' ++ ++#define EI_MAG3 3 ++#define ELFMAG3 'F' ++ ++ ++#define ELFMAG "\177ELF" ++#define SELFMAG 4 ++ ++#define EI_CLASS 4 ++#define ELFCLASSNONE 0 ++#define ELFCLASS32 1 ++#define ELFCLASS64 2 ++#define ELFCLASSNUM 3 ++ ++#define EI_DATA 5 ++#define ELFDATANONE 0 ++#define ELFDATA2LSB 1 ++#define ELFDATA2MSB 2 ++#define ELFDATANUM 3 ++ ++#define EI_VERSION 6 ++ ++ ++#define EI_OSABI 7 ++#define ELFOSABI_NONE 0 ++#define ELFOSABI_SYSV 0 ++#define ELFOSABI_HPUX 1 ++#define ELFOSABI_NETBSD 2 ++#define ELFOSABI_LINUX 3 ++#define ELFOSABI_GNU 3 ++#define ELFOSABI_SOLARIS 6 ++#define ELFOSABI_AIX 7 ++#define ELFOSABI_IRIX 8 ++#define ELFOSABI_FREEBSD 9 ++#define ELFOSABI_TRU64 10 ++#define ELFOSABI_MODESTO 11 ++#define ELFOSABI_OPENBSD 12 ++#define ELFOSABI_ARM 97 ++#define ELFOSABI_STANDALONE 255 ++ ++#define EI_ABIVERSION 8 ++ ++#define EI_PAD 9 ++ ++ ++ ++#define ET_NONE 0 ++#define ET_REL 1 ++#define ET_EXEC 2 ++#define ET_DYN 3 ++#define ET_CORE 4 ++#define ET_NUM 5 ++#define ET_LOOS 0xfe00 ++#define ET_HIOS 0xfeff ++#define ET_LOPROC 0xff00 ++#define ET_HIPROC 0xffff ++ ++ ++ ++#define EM_NONE 0 ++#define EM_M32 1 ++#define EM_SPARC 2 ++#define EM_386 3 ++#define EM_68K 4 ++#define EM_88K 5 ++#define EM_860 7 ++#define EM_MIPS 8 ++#define EM_S370 9 ++#define EM_MIPS_RS3_LE 10 ++ ++#define EM_PARISC 15 ++#define EM_VPP500 17 ++#define EM_SPARC32PLUS 18 ++#define EM_960 19 ++#define EM_PPC 20 ++#define EM_PPC64 21 ++#define EM_S390 22 ++ ++#define EM_V800 36 ++#define EM_FR20 37 ++#define EM_RH32 38 ++#define EM_RCE 39 ++#define EM_ARM 40 ++#define EM_FAKE_ALPHA 41 ++#define EM_SH 42 ++#define EM_SPARCV9 43 ++#define EM_TRICORE 44 ++#define EM_ARC 45 ++#define EM_H8_300 46 ++#define EM_H8_300H 47 ++#define EM_H8S 48 ++#define EM_H8_500 49 ++#define EM_IA_64 50 ++#define EM_MIPS_X 51 ++#define EM_COLDFIRE 52 ++#define EM_68HC12 53 ++#define EM_MMA 54 ++#define EM_PCP 55 ++#define EM_NCPU 56 ++#define EM_NDR1 57 ++#define EM_STARCORE 58 ++#define EM_ME16 59 ++#define EM_ST100 60 ++#define EM_TINYJ 61 ++#define EM_X86_64 62 ++#define EM_PDSP 63 ++ ++#define EM_FX66 66 ++#define EM_ST9PLUS 67 ++#define EM_ST7 68 ++#define EM_68HC16 69 ++#define EM_68HC11 70 ++#define EM_68HC08 71 ++#define EM_68HC05 72 ++#define EM_SVX 73 ++#define EM_ST19 74 ++#define EM_VAX 75 ++#define EM_CRIS 76 ++#define EM_JAVELIN 77 ++#define EM_FIREPATH 78 ++#define EM_ZSP 79 ++#define EM_MMIX 80 ++#define EM_HUANY 81 ++#define EM_PRISM 82 ++#define EM_AVR 83 ++#define EM_FR30 84 ++#define EM_D10V 85 ++#define EM_D30V 86 ++#define EM_V850 87 ++#define EM_M32R 88 ++#define EM_MN10300 89 ++#define EM_MN10200 90 ++#define EM_PJ 91 ++#define EM_OPENRISC 92 ++#define EM_ARC_A5 93 ++#define EM_XTENSA 94 ++#define EM_AARCH64 183 ++#define EM_TILEPRO 188 ++#define EM_MICROBLAZE 189 ++#define EM_TILEGX 191 ++#define EM_NUM 192 ++#define EM_ALPHA 0x9026 ++ ++#define EV_NONE 0 ++#define EV_CURRENT 1 ++#define EV_NUM 2 ++ ++typedef struct { ++ Elf32_Word sh_name; ++ Elf32_Word sh_type; ++ Elf32_Word sh_flags; ++ Elf32_Addr sh_addr; ++ Elf32_Off sh_offset; ++ Elf32_Word sh_size; ++ Elf32_Word sh_link; ++ Elf32_Word sh_info; ++ Elf32_Word sh_addralign; ++ Elf32_Word sh_entsize; ++} Elf32_Shdr; ++ ++typedef struct { ++ Elf64_Word sh_name; ++ Elf64_Word sh_type; ++ Elf64_Xword sh_flags; ++ Elf64_Addr sh_addr; ++ Elf64_Off sh_offset; ++ Elf64_Xword sh_size; ++ Elf64_Word sh_link; ++ Elf64_Word sh_info; ++ Elf64_Xword sh_addralign; ++ Elf64_Xword sh_entsize; ++} Elf64_Shdr; ++ ++ ++ ++#define SHN_UNDEF 0 ++#define SHN_LORESERVE 0xff00 ++#define SHN_LOPROC 0xff00 ++#define SHN_BEFORE 0xff00 ++ ++#define SHN_AFTER 0xff01 ++ ++#define SHN_HIPROC 0xff1f ++#define SHN_LOOS 0xff20 ++#define SHN_HIOS 0xff3f ++#define SHN_ABS 0xfff1 ++#define SHN_COMMON 0xfff2 ++#define SHN_XINDEX 0xffff ++#define SHN_HIRESERVE 0xffff ++ ++ ++ ++#define SHT_NULL 0 ++#define SHT_PROGBITS 1 ++#define SHT_SYMTAB 2 ++#define SHT_STRTAB 3 ++#define SHT_RELA 4 ++#define SHT_HASH 5 ++#define SHT_DYNAMIC 6 ++#define SHT_NOTE 7 ++#define SHT_NOBITS 8 ++#define SHT_REL 9 ++#define SHT_SHLIB 10 ++#define SHT_DYNSYM 11 ++#define SHT_INIT_ARRAY 14 ++#define SHT_FINI_ARRAY 15 ++#define SHT_PREINIT_ARRAY 16 ++#define SHT_GROUP 17 ++#define SHT_SYMTAB_SHNDX 18 ++#define SHT_NUM 19 ++#define SHT_LOOS 0x60000000 ++#define SHT_GNU_ATTRIBUTES 0x6ffffff5 ++#define SHT_GNU_HASH 0x6ffffff6 ++#define SHT_GNU_LIBLIST 0x6ffffff7 ++#define SHT_CHECKSUM 0x6ffffff8 ++#define SHT_LOSUNW 0x6ffffffa ++#define SHT_SUNW_move 0x6ffffffa ++#define SHT_SUNW_COMDAT 0x6ffffffb ++#define SHT_SUNW_syminfo 0x6ffffffc ++#define SHT_GNU_verdef 0x6ffffffd ++#define SHT_GNU_verneed 0x6ffffffe ++#define SHT_GNU_versym 0x6fffffff ++#define SHT_HISUNW 0x6fffffff ++#define SHT_HIOS 0x6fffffff ++#define SHT_LOPROC 0x70000000 ++#define SHT_HIPROC 0x7fffffff ++#define SHT_LOUSER 0x80000000 ++#define SHT_HIUSER 0x8fffffff ++ ++#define SHF_WRITE (1 << 0) ++#define SHF_ALLOC (1 << 1) ++#define SHF_EXECINSTR (1 << 2) ++#define SHF_MERGE (1 << 4) ++#define SHF_STRINGS (1 << 5) ++#define SHF_INFO_LINK (1 << 6) ++#define SHF_LINK_ORDER (1 << 7) ++#define SHF_OS_NONCONFORMING (1 << 8) ++ ++#define SHF_GROUP (1 << 9) ++#define SHF_TLS (1 << 10) ++#define SHF_MASKOS 0x0ff00000 ++#define SHF_MASKPROC 0xf0000000 ++#define SHF_ORDERED (1 << 30) ++#define SHF_EXCLUDE (1 << 31) ++ ++#define GRP_COMDAT 0x1 ++ ++typedef struct { ++ Elf32_Word st_name; ++ Elf32_Addr st_value; ++ Elf32_Word st_size; ++ unsigned char st_info; ++ unsigned char st_other; ++ Elf32_Section st_shndx; ++} Elf32_Sym; ++ ++typedef struct { ++ Elf64_Word st_name; ++ unsigned char st_info; ++ unsigned char st_other; ++ Elf64_Section st_shndx; ++ Elf64_Addr st_value; ++ Elf64_Xword st_size; ++} Elf64_Sym; ++ ++typedef struct { ++ Elf32_Half si_boundto; ++ Elf32_Half si_flags; ++} Elf32_Syminfo; ++ ++typedef struct { ++ Elf64_Half si_boundto; ++ Elf64_Half si_flags; ++} Elf64_Syminfo; ++ ++#define SYMINFO_BT_SELF 0xffff ++#define SYMINFO_BT_PARENT 0xfffe ++#define SYMINFO_BT_LOWRESERVE 0xff00 ++ ++#define SYMINFO_FLG_DIRECT 0x0001 ++#define SYMINFO_FLG_PASSTHRU 0x0002 ++#define SYMINFO_FLG_COPY 0x0004 ++#define SYMINFO_FLG_LAZYLOAD 0x0008 ++ ++#define SYMINFO_NONE 0 ++#define SYMINFO_CURRENT 1 ++#define SYMINFO_NUM 2 ++ ++#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) ++#define ELF32_ST_TYPE(val) ((val) & 0xf) ++#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) ++ ++#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) ++#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) ++#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) ++ ++#define STB_LOCAL 0 ++#define STB_GLOBAL 1 ++#define STB_WEAK 2 ++#define STB_NUM 3 ++#define STB_LOOS 10 ++#define STB_GNU_UNIQUE 10 ++#define STB_HIOS 12 ++#define STB_LOPROC 13 ++#define STB_HIPROC 15 ++ ++#define STT_NOTYPE 0 ++#define STT_OBJECT 1 ++#define STT_FUNC 2 ++#define STT_SECTION 3 ++#define STT_FILE 4 ++#define STT_COMMON 5 ++#define STT_TLS 6 ++#define STT_NUM 7 ++#define STT_LOOS 10 ++#define STT_GNU_IFUNC 10 ++#define STT_HIOS 12 ++#define STT_LOPROC 13 ++#define STT_HIPROC 15 ++ ++#define STN_UNDEF 0 ++ ++#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) ++#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) ++ ++#define STV_DEFAULT 0 ++#define STV_INTERNAL 1 ++#define STV_HIDDEN 2 ++#define STV_PROTECTED 3 ++ ++ ++ ++ ++typedef struct ++{ ++ Elf32_Addr r_offset; ++ Elf32_Word r_info; ++} Elf32_Rel; ++ ++typedef struct { ++ Elf64_Addr r_offset; ++ Elf64_Xword r_info; ++} Elf64_Rel; ++ ++ ++ ++typedef struct { ++ Elf32_Addr r_offset; ++ Elf32_Word r_info; ++ Elf32_Sword r_addend; ++} Elf32_Rela; ++ ++typedef struct { ++ Elf64_Addr r_offset; ++ Elf64_Xword r_info; ++ Elf64_Sxword r_addend; ++} Elf64_Rela; ++ ++ ++ ++#define ELF32_R_SYM(val) ((val) >> 8) ++#define ELF32_R_TYPE(val) ((val) & 0xff) ++#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) ++ ++#define ELF64_R_SYM(i) ((i) >> 32) ++#define ELF64_R_TYPE(i) ((i) & 0xffffffff) ++#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) ++ ++ ++ ++typedef struct { ++ Elf32_Word p_type; ++ Elf32_Off p_offset; ++ Elf32_Addr p_vaddr; ++ Elf32_Addr p_paddr; ++ Elf32_Word p_filesz; ++ Elf32_Word p_memsz; ++ Elf32_Word p_flags; ++ Elf32_Word p_align; ++} Elf32_Phdr; ++ ++typedef struct { ++ Elf64_Word p_type; ++ Elf64_Word p_flags; ++ Elf64_Off p_offset; ++ Elf64_Addr p_vaddr; ++ Elf64_Addr p_paddr; ++ Elf64_Xword p_filesz; ++ Elf64_Xword p_memsz; ++ Elf64_Xword p_align; ++} Elf64_Phdr; ++ ++ ++ ++#define PT_NULL 0 ++#define PT_LOAD 1 ++#define PT_DYNAMIC 2 ++#define PT_INTERP 3 ++#define PT_NOTE 4 ++#define PT_SHLIB 5 ++#define PT_PHDR 6 ++#define PT_TLS 7 ++#define PT_NUM 8 ++#define PT_LOOS 0x60000000 ++#define PT_GNU_EH_FRAME 0x6474e550 ++#define PT_GNU_STACK 0x6474e551 ++#define PT_GNU_RELRO 0x6474e552 ++#define PT_LOSUNW 0x6ffffffa ++#define PT_SUNWBSS 0x6ffffffa ++#define PT_SUNWSTACK 0x6ffffffb ++#define PT_HISUNW 0x6fffffff ++#define PT_HIOS 0x6fffffff ++#define PT_LOPROC 0x70000000 ++#define PT_HIPROC 0x7fffffff ++ ++ ++#define PN_XNUM 0xffff ++ ++ ++#define PF_X (1 << 0) ++#define PF_W (1 << 1) ++#define PF_R (1 << 2) ++#define PF_MASKOS 0x0ff00000 ++#define PF_MASKPROC 0xf0000000 ++ ++ ++ ++#define NT_PRSTATUS 1 ++#define NT_FPREGSET 2 ++#define NT_PRPSINFO 3 ++#define NT_PRXREG 4 ++#define NT_TASKSTRUCT 4 ++#define NT_PLATFORM 5 ++#define NT_AUXV 6 ++#define NT_GWINDOWS 7 ++#define NT_ASRS 8 ++#define NT_PSTATUS 10 ++#define NT_PSINFO 13 ++#define NT_PRCRED 14 ++#define NT_UTSNAME 15 ++#define NT_LWPSTATUS 16 ++#define NT_LWPSINFO 17 ++#define NT_PRFPXREG 20 ++#define NT_SIGINFO 0x53494749 ++#define NT_FILE 0x46494c45 ++#define NT_PRXFPREG 0x46e62b7f ++#define NT_PPC_VMX 0x100 ++#define NT_PPC_SPE 0x101 ++#define NT_PPC_VSX 0x102 ++#define NT_386_TLS 0x200 ++#define NT_386_IOPERM 0x201 ++#define NT_X86_XSTATE 0x202 ++#define NT_S390_HIGH_GPRS 0x300 ++#define NT_S390_TIMER 0x301 ++#define NT_S390_TODCMP 0x302 ++#define NT_S390_TODPREG 0x303 ++#define NT_S390_CTRS 0x304 ++#define NT_S390_PREFIX 0x305 ++#define NT_S390_LAST_BREAK 0x306 ++#define NT_S390_SYSTEM_CALL 0x307 ++#define NT_S390_TDB 0x308 ++#define NT_ARM_VFP 0x400 ++#define NT_ARM_TLS 0x401 ++#define NT_ARM_HW_BREAK 0x402 ++#define NT_ARM_HW_WATCH 0x403 ++#define NT_METAG_CBUF 0x500 ++#define NT_METAG_RPIPE 0x501 ++#define NT_METAG_TLS 0x502 ++#define NT_VERSION 1 ++ ++ ++ ++ ++typedef struct { ++ Elf32_Sword d_tag; ++ union { ++ Elf32_Word d_val; ++ Elf32_Addr d_ptr; ++ } d_un; ++} Elf32_Dyn; ++ ++typedef struct { ++ Elf64_Sxword d_tag; ++ union { ++ Elf64_Xword d_val; ++ Elf64_Addr d_ptr; ++ } d_un; ++} Elf64_Dyn; ++ ++ ++ ++#define DT_NULL 0 ++#define DT_NEEDED 1 ++#define DT_PLTRELSZ 2 ++#define DT_PLTGOT 3 ++#define DT_HASH 4 ++#define DT_STRTAB 5 ++#define DT_SYMTAB 6 ++#define DT_RELA 7 ++#define DT_RELASZ 8 ++#define DT_RELAENT 9 ++#define DT_STRSZ 10 ++#define DT_SYMENT 11 ++#define DT_INIT 12 ++#define DT_FINI 13 ++#define DT_SONAME 14 ++#define DT_RPATH 15 ++#define DT_SYMBOLIC 16 ++#define DT_REL 17 ++#define DT_RELSZ 18 ++#define DT_RELENT 19 ++#define DT_PLTREL 20 ++#define DT_DEBUG 21 ++#define DT_TEXTREL 22 ++#define DT_JMPREL 23 ++#define DT_BIND_NOW 24 ++#define DT_INIT_ARRAY 25 ++#define DT_FINI_ARRAY 26 ++#define DT_INIT_ARRAYSZ 27 ++#define DT_FINI_ARRAYSZ 28 ++#define DT_RUNPATH 29 ++#define DT_FLAGS 30 ++#define DT_ENCODING 32 ++#define DT_PREINIT_ARRAY 32 ++#define DT_PREINIT_ARRAYSZ 33 ++#define DT_NUM 34 ++#define DT_LOOS 0x6000000d ++#define DT_HIOS 0x6ffff000 ++#define DT_LOPROC 0x70000000 ++#define DT_HIPROC 0x7fffffff ++#define DT_PROCNUM DT_MIPS_NUM ++ ++#define DT_VALRNGLO 0x6ffffd00 ++#define DT_GNU_PRELINKED 0x6ffffdf5 ++#define DT_GNU_CONFLICTSZ 0x6ffffdf6 ++#define DT_GNU_LIBLISTSZ 0x6ffffdf7 ++#define DT_CHECKSUM 0x6ffffdf8 ++#define DT_PLTPADSZ 0x6ffffdf9 ++#define DT_MOVEENT 0x6ffffdfa ++#define DT_MOVESZ 0x6ffffdfb ++#define DT_FEATURE_1 0x6ffffdfc ++#define DT_POSFLAG_1 0x6ffffdfd ++ ++#define DT_SYMINSZ 0x6ffffdfe ++#define DT_SYMINENT 0x6ffffdff ++#define DT_VALRNGHI 0x6ffffdff ++#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) ++#define DT_VALNUM 12 ++ ++#define DT_ADDRRNGLO 0x6ffffe00 ++#define DT_GNU_HASH 0x6ffffef5 ++#define DT_TLSDESC_PLT 0x6ffffef6 ++#define DT_TLSDESC_GOT 0x6ffffef7 ++#define DT_GNU_CONFLICT 0x6ffffef8 ++#define DT_GNU_LIBLIST 0x6ffffef9 ++#define DT_CONFIG 0x6ffffefa ++#define DT_DEPAUDIT 0x6ffffefb ++#define DT_AUDIT 0x6ffffefc ++#define DT_PLTPAD 0x6ffffefd ++#define DT_MOVETAB 0x6ffffefe ++#define DT_SYMINFO 0x6ffffeff ++#define DT_ADDRRNGHI 0x6ffffeff ++#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) ++#define DT_ADDRNUM 11 ++ ++ ++ ++#define DT_VERSYM 0x6ffffff0 ++ ++#define DT_RELACOUNT 0x6ffffff9 ++#define DT_RELCOUNT 0x6ffffffa ++ ++ ++#define DT_FLAGS_1 0x6ffffffb ++#define DT_VERDEF 0x6ffffffc ++ ++#define DT_VERDEFNUM 0x6ffffffd ++#define DT_VERNEED 0x6ffffffe ++ ++#define DT_VERNEEDNUM 0x6fffffff ++#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) ++#define DT_VERSIONTAGNUM 16 ++ ++ ++ ++#define DT_AUXILIARY 0x7ffffffd ++#define DT_FILTER 0x7fffffff ++#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) ++#define DT_EXTRANUM 3 ++ ++ ++#define DF_ORIGIN 0x00000001 ++#define DF_SYMBOLIC 0x00000002 ++#define DF_TEXTREL 0x00000004 ++#define DF_BIND_NOW 0x00000008 ++#define DF_STATIC_TLS 0x00000010 ++ ++ ++ ++#define DF_1_NOW 0x00000001 ++#define DF_1_GLOBAL 0x00000002 ++#define DF_1_GROUP 0x00000004 ++#define DF_1_NODELETE 0x00000008 ++#define DF_1_LOADFLTR 0x00000010 ++#define DF_1_INITFIRST 0x00000020 ++#define DF_1_NOOPEN 0x00000040 ++#define DF_1_ORIGIN 0x00000080 ++#define DF_1_DIRECT 0x00000100 ++#define DF_1_TRANS 0x00000200 ++#define DF_1_INTERPOSE 0x00000400 ++#define DF_1_NODEFLIB 0x00000800 ++#define DF_1_NODUMP 0x00001000 ++#define DF_1_CONFALT 0x00002000 ++#define DF_1_ENDFILTEE 0x00004000 ++#define DF_1_DISPRELDNE 0x00008000 ++#define DF_1_DISPRELPND 0x00010000 ++#define DF_1_NODIRECT 0x00020000 ++#define DF_1_IGNMULDEF 0x00040000 ++#define DF_1_NOKSYMS 0x00080000 ++#define DF_1_NOHDR 0x00100000 ++#define DF_1_EDITED 0x00200000 ++#define DF_1_NORELOC 0x00400000 ++#define DF_1_SYMINTPOSE 0x00800000 ++#define DF_1_GLOBAUDIT 0x01000000 ++#define DF_1_SINGLETON 0x02000000 ++ ++#define DTF_1_PARINIT 0x00000001 ++#define DTF_1_CONFEXP 0x00000002 ++ ++ ++#define DF_P1_LAZYLOAD 0x00000001 ++#define DF_P1_GROUPPERM 0x00000002 ++ ++ ++ ++ ++typedef struct { ++ Elf32_Half vd_version; ++ Elf32_Half vd_flags; ++ Elf32_Half vd_ndx; ++ Elf32_Half vd_cnt; ++ Elf32_Word vd_hash; ++ Elf32_Word vd_aux; ++ Elf32_Word vd_next; ++} Elf32_Verdef; ++ ++typedef struct { ++ Elf64_Half vd_version; ++ Elf64_Half vd_flags; ++ Elf64_Half vd_ndx; ++ Elf64_Half vd_cnt; ++ Elf64_Word vd_hash; ++ Elf64_Word vd_aux; ++ Elf64_Word vd_next; ++} Elf64_Verdef; ++ ++ ++ ++#define VER_DEF_NONE 0 ++#define VER_DEF_CURRENT 1 ++#define VER_DEF_NUM 2 ++ ++ ++#define VER_FLG_BASE 0x1 ++#define VER_FLG_WEAK 0x2 ++ ++ ++#define VER_NDX_LOCAL 0 ++#define VER_NDX_GLOBAL 1 ++#define VER_NDX_LORESERVE 0xff00 ++#define VER_NDX_ELIMINATE 0xff01 ++ ++ ++ ++typedef struct { ++ Elf32_Word vda_name; ++ Elf32_Word vda_next; ++} Elf32_Verdaux; ++ ++typedef struct { ++ Elf64_Word vda_name; ++ Elf64_Word vda_next; ++} Elf64_Verdaux; ++ ++ ++ ++ ++typedef struct { ++ Elf32_Half vn_version; ++ Elf32_Half vn_cnt; ++ Elf32_Word vn_file; ++ Elf32_Word vn_aux; ++ Elf32_Word vn_next; ++} Elf32_Verneed; ++ ++typedef struct { ++ Elf64_Half vn_version; ++ Elf64_Half vn_cnt; ++ Elf64_Word vn_file; ++ Elf64_Word vn_aux; ++ Elf64_Word vn_next; ++} Elf64_Verneed; ++ ++ ++ ++#define VER_NEED_NONE 0 ++#define VER_NEED_CURRENT 1 ++#define VER_NEED_NUM 2 ++ ++ ++ ++typedef struct { ++ Elf32_Word vna_hash; ++ Elf32_Half vna_flags; ++ Elf32_Half vna_other; ++ Elf32_Word vna_name; ++ Elf32_Word vna_next; ++} Elf32_Vernaux; ++ ++typedef struct { ++ Elf64_Word vna_hash; ++ Elf64_Half vna_flags; ++ Elf64_Half vna_other; ++ Elf64_Word vna_name; ++ Elf64_Word vna_next; ++} Elf64_Vernaux; ++ ++ ++ ++#define VER_FLG_WEAK 0x2 ++ ++ ++ ++typedef struct { ++ uint32_t a_type; ++ union { ++ uint32_t a_val; ++ } a_un; ++} Elf32_auxv_t; ++ ++typedef struct { ++ uint64_t a_type; ++ union { ++ uint64_t a_val; ++ } a_un; ++} Elf64_auxv_t; ++ ++ ++ ++#define AT_NULL 0 ++#define AT_IGNORE 1 ++#define AT_EXECFD 2 ++#define AT_PHDR 3 ++#define AT_PHENT 4 ++#define AT_PHNUM 5 ++#define AT_PAGESZ 6 ++#define AT_BASE 7 ++#define AT_FLAGS 8 ++#define AT_ENTRY 9 ++#define AT_NOTELF 10 ++#define AT_UID 11 ++#define AT_EUID 12 ++#define AT_GID 13 ++#define AT_EGID 14 ++#define AT_CLKTCK 17 ++ ++ ++#define AT_PLATFORM 15 ++#define AT_HWCAP 16 ++ ++ ++ ++ ++#define AT_FPUCW 18 ++ ++ ++#define AT_DCACHEBSIZE 19 ++#define AT_ICACHEBSIZE 20 ++#define AT_UCACHEBSIZE 21 ++ ++ ++ ++#define AT_IGNOREPPC 22 ++ ++#define AT_SECURE 23 ++ ++#define AT_BASE_PLATFORM 24 ++ ++#define AT_RANDOM 25 ++ ++#define AT_HWCAP2 26 ++ ++#define AT_EXECFN 31 ++ ++ ++ ++#define AT_SYSINFO 32 ++#define AT_SYSINFO_EHDR 33 ++ ++ ++ ++#define AT_L1I_CACHESHAPE 34 ++#define AT_L1D_CACHESHAPE 35 ++#define AT_L2_CACHESHAPE 36 ++#define AT_L3_CACHESHAPE 37 ++ ++ ++ ++ ++typedef struct { ++ Elf32_Word n_namesz; ++ Elf32_Word n_descsz; ++ Elf32_Word n_type; ++} Elf32_Nhdr; ++ ++typedef struct { ++ Elf64_Word n_namesz; ++ Elf64_Word n_descsz; ++ Elf64_Word n_type; ++} Elf64_Nhdr; ++ ++ ++ ++ ++#define ELF_NOTE_SOLARIS "SUNW Solaris" ++ ++ ++#define ELF_NOTE_GNU "GNU" ++ ++ ++ ++ ++ ++#define ELF_NOTE_PAGESIZE_HINT 1 ++ ++ ++#define NT_GNU_ABI_TAG 1 ++#define ELF_NOTE_ABI NT_GNU_ABI_TAG ++ ++ ++ ++#define ELF_NOTE_OS_LINUX 0 ++#define ELF_NOTE_OS_GNU 1 ++#define ELF_NOTE_OS_SOLARIS2 2 ++#define ELF_NOTE_OS_FREEBSD 3 ++ ++#define NT_GNU_BUILD_ID 3 ++#define NT_GNU_GOLD_VERSION 4 ++ ++ ++ ++typedef struct { ++ Elf32_Xword m_value; ++ Elf32_Word m_info; ++ Elf32_Word m_poffset; ++ Elf32_Half m_repeat; ++ Elf32_Half m_stride; ++} Elf32_Move; ++ ++typedef struct { ++ Elf64_Xword m_value; ++ Elf64_Xword m_info; ++ Elf64_Xword m_poffset; ++ Elf64_Half m_repeat; ++ Elf64_Half m_stride; ++} Elf64_Move; ++ ++ ++#define ELF32_M_SYM(info) ((info) >> 8) ++#define ELF32_M_SIZE(info) ((unsigned char) (info)) ++#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) ++ ++#define ELF64_M_SYM(info) ELF32_M_SYM (info) ++#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) ++#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) ++ ++#define EF_CPU32 0x00810000 ++ ++#define R_68K_NONE 0 ++#define R_68K_32 1 ++#define R_68K_16 2 ++#define R_68K_8 3 ++#define R_68K_PC32 4 ++#define R_68K_PC16 5 ++#define R_68K_PC8 6 ++#define R_68K_GOT32 7 ++#define R_68K_GOT16 8 ++#define R_68K_GOT8 9 ++#define R_68K_GOT32O 10 ++#define R_68K_GOT16O 11 ++#define R_68K_GOT8O 12 ++#define R_68K_PLT32 13 ++#define R_68K_PLT16 14 ++#define R_68K_PLT8 15 ++#define R_68K_PLT32O 16 ++#define R_68K_PLT16O 17 ++#define R_68K_PLT8O 18 ++#define R_68K_COPY 19 ++#define R_68K_GLOB_DAT 20 ++#define R_68K_JMP_SLOT 21 ++#define R_68K_RELATIVE 22 ++#define R_68K_NUM 23 ++ ++#define R_386_NONE 0 ++#define R_386_32 1 ++#define R_386_PC32 2 ++#define R_386_GOT32 3 ++#define R_386_PLT32 4 ++#define R_386_COPY 5 ++#define R_386_GLOB_DAT 6 ++#define R_386_JMP_SLOT 7 ++#define R_386_RELATIVE 8 ++#define R_386_GOTOFF 9 ++#define R_386_GOTPC 10 ++#define R_386_32PLT 11 ++#define R_386_TLS_TPOFF 14 ++#define R_386_TLS_IE 15 ++#define R_386_TLS_GOTIE 16 ++#define R_386_TLS_LE 17 ++#define R_386_TLS_GD 18 ++#define R_386_TLS_LDM 19 ++#define R_386_16 20 ++#define R_386_PC16 21 ++#define R_386_8 22 ++#define R_386_PC8 23 ++#define R_386_TLS_GD_32 24 ++#define R_386_TLS_GD_PUSH 25 ++#define R_386_TLS_GD_CALL 26 ++#define R_386_TLS_GD_POP 27 ++#define R_386_TLS_LDM_32 28 ++#define R_386_TLS_LDM_PUSH 29 ++#define R_386_TLS_LDM_CALL 30 ++#define R_386_TLS_LDM_POP 31 ++#define R_386_TLS_LDO_32 32 ++#define R_386_TLS_IE_32 33 ++#define R_386_TLS_LE_32 34 ++#define R_386_TLS_DTPMOD32 35 ++#define R_386_TLS_DTPOFF32 36 ++#define R_386_TLS_TPOFF32 37 ++#define R_386_SIZE32 38 ++#define R_386_TLS_GOTDESC 39 ++#define R_386_TLS_DESC_CALL 40 ++#define R_386_TLS_DESC 41 ++#define R_386_IRELATIVE 42 ++#define R_386_NUM 43 ++ ++ ++ ++ ++ ++#define STT_SPARC_REGISTER 13 ++ ++ ++ ++#define EF_SPARCV9_MM 3 ++#define EF_SPARCV9_TSO 0 ++#define EF_SPARCV9_PSO 1 ++#define EF_SPARCV9_RMO 2 ++#define EF_SPARC_LEDATA 0x800000 ++#define EF_SPARC_EXT_MASK 0xFFFF00 ++#define EF_SPARC_32PLUS 0x000100 ++#define EF_SPARC_SUN_US1 0x000200 ++#define EF_SPARC_HAL_R1 0x000400 ++#define EF_SPARC_SUN_US3 0x000800 ++ ++ ++ ++#define R_SPARC_NONE 0 ++#define R_SPARC_8 1 ++#define R_SPARC_16 2 ++#define R_SPARC_32 3 ++#define R_SPARC_DISP8 4 ++#define R_SPARC_DISP16 5 ++#define R_SPARC_DISP32 6 ++#define R_SPARC_WDISP30 7 ++#define R_SPARC_WDISP22 8 ++#define R_SPARC_HI22 9 ++#define R_SPARC_22 10 ++#define R_SPARC_13 11 ++#define R_SPARC_LO10 12 ++#define R_SPARC_GOT10 13 ++#define R_SPARC_GOT13 14 ++#define R_SPARC_GOT22 15 ++#define R_SPARC_PC10 16 ++#define R_SPARC_PC22 17 ++#define R_SPARC_WPLT30 18 ++#define R_SPARC_COPY 19 ++#define R_SPARC_GLOB_DAT 20 ++#define R_SPARC_JMP_SLOT 21 ++#define R_SPARC_RELATIVE 22 ++#define R_SPARC_UA32 23 ++ ++ ++ ++#define R_SPARC_PLT32 24 ++#define R_SPARC_HIPLT22 25 ++#define R_SPARC_LOPLT10 26 ++#define R_SPARC_PCPLT32 27 ++#define R_SPARC_PCPLT22 28 ++#define R_SPARC_PCPLT10 29 ++#define R_SPARC_10 30 ++#define R_SPARC_11 31 ++#define R_SPARC_64 32 ++#define R_SPARC_OLO10 33 ++#define R_SPARC_HH22 34 ++#define R_SPARC_HM10 35 ++#define R_SPARC_LM22 36 ++#define R_SPARC_PC_HH22 37 ++#define R_SPARC_PC_HM10 38 ++#define R_SPARC_PC_LM22 39 ++#define R_SPARC_WDISP16 40 ++#define R_SPARC_WDISP19 41 ++#define R_SPARC_GLOB_JMP 42 ++#define R_SPARC_7 43 ++#define R_SPARC_5 44 ++#define R_SPARC_6 45 ++#define R_SPARC_DISP64 46 ++#define R_SPARC_PLT64 47 ++#define R_SPARC_HIX22 48 ++#define R_SPARC_LOX10 49 ++#define R_SPARC_H44 50 ++#define R_SPARC_M44 51 ++#define R_SPARC_L44 52 ++#define R_SPARC_REGISTER 53 ++#define R_SPARC_UA64 54 ++#define R_SPARC_UA16 55 ++#define R_SPARC_TLS_GD_HI22 56 ++#define R_SPARC_TLS_GD_LO10 57 ++#define R_SPARC_TLS_GD_ADD 58 ++#define R_SPARC_TLS_GD_CALL 59 ++#define R_SPARC_TLS_LDM_HI22 60 ++#define R_SPARC_TLS_LDM_LO10 61 ++#define R_SPARC_TLS_LDM_ADD 62 ++#define R_SPARC_TLS_LDM_CALL 63 ++#define R_SPARC_TLS_LDO_HIX22 64 ++#define R_SPARC_TLS_LDO_LOX10 65 ++#define R_SPARC_TLS_LDO_ADD 66 ++#define R_SPARC_TLS_IE_HI22 67 ++#define R_SPARC_TLS_IE_LO10 68 ++#define R_SPARC_TLS_IE_LD 69 ++#define R_SPARC_TLS_IE_LDX 70 ++#define R_SPARC_TLS_IE_ADD 71 ++#define R_SPARC_TLS_LE_HIX22 72 ++#define R_SPARC_TLS_LE_LOX10 73 ++#define R_SPARC_TLS_DTPMOD32 74 ++#define R_SPARC_TLS_DTPMOD64 75 ++#define R_SPARC_TLS_DTPOFF32 76 ++#define R_SPARC_TLS_DTPOFF64 77 ++#define R_SPARC_TLS_TPOFF32 78 ++#define R_SPARC_TLS_TPOFF64 79 ++#define R_SPARC_GOTDATA_HIX22 80 ++#define R_SPARC_GOTDATA_LOX10 81 ++#define R_SPARC_GOTDATA_OP_HIX22 82 ++#define R_SPARC_GOTDATA_OP_LOX10 83 ++#define R_SPARC_GOTDATA_OP 84 ++#define R_SPARC_H34 85 ++#define R_SPARC_SIZE32 86 ++#define R_SPARC_SIZE64 87 ++#define R_SPARC_GNU_VTINHERIT 250 ++#define R_SPARC_GNU_VTENTRY 251 ++#define R_SPARC_REV32 252 ++ ++#define R_SPARC_NUM 253 ++ ++ ++ ++#define DT_SPARC_REGISTER 0x70000001 ++#define DT_SPARC_NUM 2 ++ ++ ++#define EF_MIPS_NOREORDER 1 ++#define EF_MIPS_PIC 2 ++#define EF_MIPS_CPIC 4 ++#define EF_MIPS_XGOT 8 ++#define EF_MIPS_64BIT_WHIRL 16 ++#define EF_MIPS_ABI2 32 ++#define EF_MIPS_ABI_ON32 64 ++#define EF_MIPS_ARCH 0xf0000000 ++ ++ ++ ++#define EF_MIPS_ARCH_1 0x00000000 ++#define EF_MIPS_ARCH_2 0x10000000 ++#define EF_MIPS_ARCH_3 0x20000000 ++#define EF_MIPS_ARCH_4 0x30000000 ++#define EF_MIPS_ARCH_5 0x40000000 ++#define EF_MIPS_ARCH_32 0x50000000 ++#define EF_MIPS_ARCH_64 0x60000000 ++#define EF_MIPS_ARCH_32R2 0x70000000 ++#define EF_MIPS_ARCH_64R2 0x80000000 ++ ++ ++#define E_MIPS_ARCH_1 0x00000000 ++#define E_MIPS_ARCH_2 0x10000000 ++#define E_MIPS_ARCH_3 0x20000000 ++#define E_MIPS_ARCH_4 0x30000000 ++#define E_MIPS_ARCH_5 0x40000000 ++#define E_MIPS_ARCH_32 0x50000000 ++#define E_MIPS_ARCH_64 0x60000000 ++ ++ ++ ++#define SHN_MIPS_ACOMMON 0xff00 ++#define SHN_MIPS_TEXT 0xff01 ++#define SHN_MIPS_DATA 0xff02 ++#define SHN_MIPS_SCOMMON 0xff03 ++#define SHN_MIPS_SUNDEFINED 0xff04 ++ ++ ++ ++#define SHT_MIPS_LIBLIST 0x70000000 ++#define SHT_MIPS_MSYM 0x70000001 ++#define SHT_MIPS_CONFLICT 0x70000002 ++#define SHT_MIPS_GPTAB 0x70000003 ++#define SHT_MIPS_UCODE 0x70000004 ++#define SHT_MIPS_DEBUG 0x70000005 ++#define SHT_MIPS_REGINFO 0x70000006 ++#define SHT_MIPS_PACKAGE 0x70000007 ++#define SHT_MIPS_PACKSYM 0x70000008 ++#define SHT_MIPS_RELD 0x70000009 ++#define SHT_MIPS_IFACE 0x7000000b ++#define SHT_MIPS_CONTENT 0x7000000c ++#define SHT_MIPS_OPTIONS 0x7000000d ++#define SHT_MIPS_SHDR 0x70000010 ++#define SHT_MIPS_FDESC 0x70000011 ++#define SHT_MIPS_EXTSYM 0x70000012 ++#define SHT_MIPS_DENSE 0x70000013 ++#define SHT_MIPS_PDESC 0x70000014 ++#define SHT_MIPS_LOCSYM 0x70000015 ++#define SHT_MIPS_AUXSYM 0x70000016 ++#define SHT_MIPS_OPTSYM 0x70000017 ++#define SHT_MIPS_LOCSTR 0x70000018 ++#define SHT_MIPS_LINE 0x70000019 ++#define SHT_MIPS_RFDESC 0x7000001a ++#define SHT_MIPS_DELTASYM 0x7000001b ++#define SHT_MIPS_DELTAINST 0x7000001c ++#define SHT_MIPS_DELTACLASS 0x7000001d ++#define SHT_MIPS_DWARF 0x7000001e ++#define SHT_MIPS_DELTADECL 0x7000001f ++#define SHT_MIPS_SYMBOL_LIB 0x70000020 ++#define SHT_MIPS_EVENTS 0x70000021 ++#define SHT_MIPS_TRANSLATE 0x70000022 ++#define SHT_MIPS_PIXIE 0x70000023 ++#define SHT_MIPS_XLATE 0x70000024 ++#define SHT_MIPS_XLATE_DEBUG 0x70000025 ++#define SHT_MIPS_WHIRL 0x70000026 ++#define SHT_MIPS_EH_REGION 0x70000027 ++#define SHT_MIPS_XLATE_OLD 0x70000028 ++#define SHT_MIPS_PDR_EXCEPTION 0x70000029 ++ ++ ++ ++#define SHF_MIPS_GPREL 0x10000000 ++#define SHF_MIPS_MERGE 0x20000000 ++#define SHF_MIPS_ADDR 0x40000000 ++#define SHF_MIPS_STRINGS 0x80000000 ++#define SHF_MIPS_NOSTRIP 0x08000000 ++#define SHF_MIPS_LOCAL 0x04000000 ++#define SHF_MIPS_NAMES 0x02000000 ++#define SHF_MIPS_NODUPE 0x01000000 ++ ++ ++ ++ ++ ++#define STO_MIPS_DEFAULT 0x0 ++#define STO_MIPS_INTERNAL 0x1 ++#define STO_MIPS_HIDDEN 0x2 ++#define STO_MIPS_PROTECTED 0x3 ++#define STO_MIPS_PLT 0x8 ++#define STO_MIPS_SC_ALIGN_UNUSED 0xff ++ ++ ++#define STB_MIPS_SPLIT_COMMON 13 ++ ++ ++ ++typedef union { ++ struct { ++ Elf32_Word gt_current_g_value; ++ Elf32_Word gt_unused; ++ } gt_header; ++ struct { ++ Elf32_Word gt_g_value; ++ Elf32_Word gt_bytes; ++ } gt_entry; ++} Elf32_gptab; ++ ++ ++ ++typedef struct { ++ Elf32_Word ri_gprmask; ++ Elf32_Word ri_cprmask[4]; ++ Elf32_Sword ri_gp_value; ++} Elf32_RegInfo; ++ ++ ++ ++typedef struct { ++ unsigned char kind; ++ ++ unsigned char size; ++ Elf32_Section section; ++ ++ Elf32_Word info; ++} Elf_Options; ++ ++ ++ ++#define ODK_NULL 0 ++#define ODK_REGINFO 1 ++#define ODK_EXCEPTIONS 2 ++#define ODK_PAD 3 ++#define ODK_HWPATCH 4 ++#define ODK_FILL 5 ++#define ODK_TAGS 6 ++#define ODK_HWAND 7 ++#define ODK_HWOR 8 ++ ++ ++ ++#define OEX_FPU_MIN 0x1f ++#define OEX_FPU_MAX 0x1f00 ++#define OEX_PAGE0 0x10000 ++#define OEX_SMM 0x20000 ++#define OEX_FPDBUG 0x40000 ++#define OEX_PRECISEFP OEX_FPDBUG ++#define OEX_DISMISS 0x80000 ++ ++#define OEX_FPU_INVAL 0x10 ++#define OEX_FPU_DIV0 0x08 ++#define OEX_FPU_OFLO 0x04 ++#define OEX_FPU_UFLO 0x02 ++#define OEX_FPU_INEX 0x01 ++ ++ ++ ++#define OHW_R4KEOP 0x1 ++#define OHW_R8KPFETCH 0x2 ++#define OHW_R5KEOP 0x4 ++#define OHW_R5KCVTL 0x8 ++ ++#define OPAD_PREFIX 0x1 ++#define OPAD_POSTFIX 0x2 ++#define OPAD_SYMBOL 0x4 ++ ++ ++ ++typedef struct { ++ Elf32_Word hwp_flags1; ++ Elf32_Word hwp_flags2; ++} Elf_Options_Hw; ++ ++ ++ ++#define OHWA0_R4KEOP_CHECKED 0x00000001 ++#define OHWA1_R4KEOP_CLEAN 0x00000002 ++ ++ ++ ++#define R_MIPS_NONE 0 ++#define R_MIPS_16 1 ++#define R_MIPS_32 2 ++#define R_MIPS_REL32 3 ++#define R_MIPS_26 4 ++#define R_MIPS_HI16 5 ++#define R_MIPS_LO16 6 ++#define R_MIPS_GPREL16 7 ++#define R_MIPS_LITERAL 8 ++#define R_MIPS_GOT16 9 ++#define R_MIPS_PC16 10 ++#define R_MIPS_CALL16 11 ++#define R_MIPS_GPREL32 12 ++ ++#define R_MIPS_SHIFT5 16 ++#define R_MIPS_SHIFT6 17 ++#define R_MIPS_64 18 ++#define R_MIPS_GOT_DISP 19 ++#define R_MIPS_GOT_PAGE 20 ++#define R_MIPS_GOT_OFST 21 ++#define R_MIPS_GOT_HI16 22 ++#define R_MIPS_GOT_LO16 23 ++#define R_MIPS_SUB 24 ++#define R_MIPS_INSERT_A 25 ++#define R_MIPS_INSERT_B 26 ++#define R_MIPS_DELETE 27 ++#define R_MIPS_HIGHER 28 ++#define R_MIPS_HIGHEST 29 ++#define R_MIPS_CALL_HI16 30 ++#define R_MIPS_CALL_LO16 31 ++#define R_MIPS_SCN_DISP 32 ++#define R_MIPS_REL16 33 ++#define R_MIPS_ADD_IMMEDIATE 34 ++#define R_MIPS_PJUMP 35 ++#define R_MIPS_RELGOT 36 ++#define R_MIPS_JALR 37 ++#define R_MIPS_TLS_DTPMOD32 38 ++#define R_MIPS_TLS_DTPREL32 39 ++#define R_MIPS_TLS_DTPMOD64 40 ++#define R_MIPS_TLS_DTPREL64 41 ++#define R_MIPS_TLS_GD 42 ++#define R_MIPS_TLS_LDM 43 ++#define R_MIPS_TLS_DTPREL_HI16 44 ++#define R_MIPS_TLS_DTPREL_LO16 45 ++#define R_MIPS_TLS_GOTTPREL 46 ++#define R_MIPS_TLS_TPREL32 47 ++#define R_MIPS_TLS_TPREL64 48 ++#define R_MIPS_TLS_TPREL_HI16 49 ++#define R_MIPS_TLS_TPREL_LO16 50 ++#define R_MIPS_GLOB_DAT 51 ++#define R_MIPS_COPY 126 ++#define R_MIPS_JUMP_SLOT 127 ++ ++#define R_MIPS_NUM 128 ++ ++ ++ ++#define PT_MIPS_REGINFO 0x70000000 ++#define PT_MIPS_RTPROC 0x70000001 ++#define PT_MIPS_OPTIONS 0x70000002 ++ ++ ++ ++#define PF_MIPS_LOCAL 0x10000000 ++ ++ ++ ++#define DT_MIPS_RLD_VERSION 0x70000001 ++#define DT_MIPS_TIME_STAMP 0x70000002 ++#define DT_MIPS_ICHECKSUM 0x70000003 ++#define DT_MIPS_IVERSION 0x70000004 ++#define DT_MIPS_FLAGS 0x70000005 ++#define DT_MIPS_BASE_ADDRESS 0x70000006 ++#define DT_MIPS_MSYM 0x70000007 ++#define DT_MIPS_CONFLICT 0x70000008 ++#define DT_MIPS_LIBLIST 0x70000009 ++#define DT_MIPS_LOCAL_GOTNO 0x7000000a ++#define DT_MIPS_CONFLICTNO 0x7000000b ++#define DT_MIPS_LIBLISTNO 0x70000010 ++#define DT_MIPS_SYMTABNO 0x70000011 ++#define DT_MIPS_UNREFEXTNO 0x70000012 ++#define DT_MIPS_GOTSYM 0x70000013 ++#define DT_MIPS_HIPAGENO 0x70000014 ++#define DT_MIPS_RLD_MAP 0x70000016 ++#define DT_MIPS_DELTA_CLASS 0x70000017 ++#define DT_MIPS_DELTA_CLASS_NO 0x70000018 ++ ++#define DT_MIPS_DELTA_INSTANCE 0x70000019 ++#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a ++ ++#define DT_MIPS_DELTA_RELOC 0x7000001b ++#define DT_MIPS_DELTA_RELOC_NO 0x7000001c ++ ++#define DT_MIPS_DELTA_SYM 0x7000001d ++ ++#define DT_MIPS_DELTA_SYM_NO 0x7000001e ++ ++#define DT_MIPS_DELTA_CLASSSYM 0x70000020 ++ ++#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 ++ ++#define DT_MIPS_CXX_FLAGS 0x70000022 ++#define DT_MIPS_PIXIE_INIT 0x70000023 ++#define DT_MIPS_SYMBOL_LIB 0x70000024 ++#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 ++#define DT_MIPS_LOCAL_GOTIDX 0x70000026 ++#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 ++#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 ++#define DT_MIPS_OPTIONS 0x70000029 ++#define DT_MIPS_INTERFACE 0x7000002a ++#define DT_MIPS_DYNSTR_ALIGN 0x7000002b ++#define DT_MIPS_INTERFACE_SIZE 0x7000002c ++#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d ++ ++#define DT_MIPS_PERF_SUFFIX 0x7000002e ++ ++#define DT_MIPS_COMPACT_SIZE 0x7000002f ++#define DT_MIPS_GP_VALUE 0x70000030 ++#define DT_MIPS_AUX_DYNAMIC 0x70000031 ++ ++#define DT_MIPS_PLTGOT 0x70000032 ++ ++#define DT_MIPS_RWPLT 0x70000034 ++#define DT_MIPS_NUM 0x35 ++ ++ ++ ++#define RHF_NONE 0 ++#define RHF_QUICKSTART (1 << 0) ++#define RHF_NOTPOT (1 << 1) ++#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) ++#define RHF_NO_MOVE (1 << 3) ++#define RHF_SGI_ONLY (1 << 4) ++#define RHF_GUARANTEE_INIT (1 << 5) ++#define RHF_DELTA_C_PLUS_PLUS (1 << 6) ++#define RHF_GUARANTEE_START_INIT (1 << 7) ++#define RHF_PIXIE (1 << 8) ++#define RHF_DEFAULT_DELAY_LOAD (1 << 9) ++#define RHF_REQUICKSTART (1 << 10) ++#define RHF_REQUICKSTARTED (1 << 11) ++#define RHF_CORD (1 << 12) ++#define RHF_NO_UNRES_UNDEF (1 << 13) ++#define RHF_RLD_ORDER_SAFE (1 << 14) ++ ++ ++ ++typedef struct ++{ ++ Elf32_Word l_name; ++ Elf32_Word l_time_stamp; ++ Elf32_Word l_checksum; ++ Elf32_Word l_version; ++ Elf32_Word l_flags; ++} Elf32_Lib; ++ ++typedef struct ++{ ++ Elf64_Word l_name; ++ Elf64_Word l_time_stamp; ++ Elf64_Word l_checksum; ++ Elf64_Word l_version; ++ Elf64_Word l_flags; ++} Elf64_Lib; ++ ++ ++ ++ ++#define LL_NONE 0 ++#define LL_EXACT_MATCH (1 << 0) ++#define LL_IGNORE_INT_VER (1 << 1) ++#define LL_REQUIRE_MINOR (1 << 2) ++#define LL_EXPORTS (1 << 3) ++#define LL_DELAY_LOAD (1 << 4) ++#define LL_DELTA (1 << 5) ++ ++ ++ ++typedef Elf32_Addr Elf32_Conflict; ++ ++ ++ ++ ++ ++ ++#define EF_PARISC_TRAPNIL 0x00010000 ++#define EF_PARISC_EXT 0x00020000 ++#define EF_PARISC_LSB 0x00040000 ++#define EF_PARISC_WIDE 0x00080000 ++#define EF_PARISC_NO_KABP 0x00100000 ++ ++#define EF_PARISC_LAZYSWAP 0x00400000 ++#define EF_PARISC_ARCH 0x0000ffff ++ ++ ++ ++#define EFA_PARISC_1_0 0x020b ++#define EFA_PARISC_1_1 0x0210 ++#define EFA_PARISC_2_0 0x0214 ++ ++ ++ ++#define SHN_PARISC_ANSI_COMMON 0xff00 ++ ++#define SHN_PARISC_HUGE_COMMON 0xff01 ++ ++ ++ ++#define SHT_PARISC_EXT 0x70000000 ++#define SHT_PARISC_UNWIND 0x70000001 ++#define SHT_PARISC_DOC 0x70000002 ++ ++ ++ ++#define SHF_PARISC_SHORT 0x20000000 ++#define SHF_PARISC_HUGE 0x40000000 ++#define SHF_PARISC_SBP 0x80000000 ++ ++ ++ ++#define STT_PARISC_MILLICODE 13 ++ ++#define STT_HP_OPAQUE (STT_LOOS + 0x1) ++#define STT_HP_STUB (STT_LOOS + 0x2) ++ ++ ++ ++#define R_PARISC_NONE 0 ++#define R_PARISC_DIR32 1 ++#define R_PARISC_DIR21L 2 ++#define R_PARISC_DIR17R 3 ++#define R_PARISC_DIR17F 4 ++#define R_PARISC_DIR14R 6 ++#define R_PARISC_PCREL32 9 ++#define R_PARISC_PCREL21L 10 ++#define R_PARISC_PCREL17R 11 ++#define R_PARISC_PCREL17F 12 ++#define R_PARISC_PCREL14R 14 ++#define R_PARISC_DPREL21L 18 ++#define R_PARISC_DPREL14R 22 ++#define R_PARISC_GPREL21L 26 ++#define R_PARISC_GPREL14R 30 ++#define R_PARISC_LTOFF21L 34 ++#define R_PARISC_LTOFF14R 38 ++#define R_PARISC_SECREL32 41 ++#define R_PARISC_SEGBASE 48 ++#define R_PARISC_SEGREL32 49 ++#define R_PARISC_PLTOFF21L 50 ++#define R_PARISC_PLTOFF14R 54 ++#define R_PARISC_LTOFF_FPTR32 57 ++#define R_PARISC_LTOFF_FPTR21L 58 ++#define R_PARISC_LTOFF_FPTR14R 62 ++#define R_PARISC_FPTR64 64 ++#define R_PARISC_PLABEL32 65 ++#define R_PARISC_PLABEL21L 66 ++#define R_PARISC_PLABEL14R 70 ++#define R_PARISC_PCREL64 72 ++#define R_PARISC_PCREL22F 74 ++#define R_PARISC_PCREL14WR 75 ++#define R_PARISC_PCREL14DR 76 ++#define R_PARISC_PCREL16F 77 ++#define R_PARISC_PCREL16WF 78 ++#define R_PARISC_PCREL16DF 79 ++#define R_PARISC_DIR64 80 ++#define R_PARISC_DIR14WR 83 ++#define R_PARISC_DIR14DR 84 ++#define R_PARISC_DIR16F 85 ++#define R_PARISC_DIR16WF 86 ++#define R_PARISC_DIR16DF 87 ++#define R_PARISC_GPREL64 88 ++#define R_PARISC_GPREL14WR 91 ++#define R_PARISC_GPREL14DR 92 ++#define R_PARISC_GPREL16F 93 ++#define R_PARISC_GPREL16WF 94 ++#define R_PARISC_GPREL16DF 95 ++#define R_PARISC_LTOFF64 96 ++#define R_PARISC_LTOFF14WR 99 ++#define R_PARISC_LTOFF14DR 100 ++#define R_PARISC_LTOFF16F 101 ++#define R_PARISC_LTOFF16WF 102 ++#define R_PARISC_LTOFF16DF 103 ++#define R_PARISC_SECREL64 104 ++#define R_PARISC_SEGREL64 112 ++#define R_PARISC_PLTOFF14WR 115 ++#define R_PARISC_PLTOFF14DR 116 ++#define R_PARISC_PLTOFF16F 117 ++#define R_PARISC_PLTOFF16WF 118 ++#define R_PARISC_PLTOFF16DF 119 ++#define R_PARISC_LTOFF_FPTR64 120 ++#define R_PARISC_LTOFF_FPTR14WR 123 ++#define R_PARISC_LTOFF_FPTR14DR 124 ++#define R_PARISC_LTOFF_FPTR16F 125 ++#define R_PARISC_LTOFF_FPTR16WF 126 ++#define R_PARISC_LTOFF_FPTR16DF 127 ++#define R_PARISC_LORESERVE 128 ++#define R_PARISC_COPY 128 ++#define R_PARISC_IPLT 129 ++#define R_PARISC_EPLT 130 ++#define R_PARISC_TPREL32 153 ++#define R_PARISC_TPREL21L 154 ++#define R_PARISC_TPREL14R 158 ++#define R_PARISC_LTOFF_TP21L 162 ++#define R_PARISC_LTOFF_TP14R 166 ++#define R_PARISC_LTOFF_TP14F 167 ++#define R_PARISC_TPREL64 216 ++#define R_PARISC_TPREL14WR 219 ++#define R_PARISC_TPREL14DR 220 ++#define R_PARISC_TPREL16F 221 ++#define R_PARISC_TPREL16WF 222 ++#define R_PARISC_TPREL16DF 223 ++#define R_PARISC_LTOFF_TP64 224 ++#define R_PARISC_LTOFF_TP14WR 227 ++#define R_PARISC_LTOFF_TP14DR 228 ++#define R_PARISC_LTOFF_TP16F 229 ++#define R_PARISC_LTOFF_TP16WF 230 ++#define R_PARISC_LTOFF_TP16DF 231 ++#define R_PARISC_GNU_VTENTRY 232 ++#define R_PARISC_GNU_VTINHERIT 233 ++#define R_PARISC_TLS_GD21L 234 ++#define R_PARISC_TLS_GD14R 235 ++#define R_PARISC_TLS_GDCALL 236 ++#define R_PARISC_TLS_LDM21L 237 ++#define R_PARISC_TLS_LDM14R 238 ++#define R_PARISC_TLS_LDMCALL 239 ++#define R_PARISC_TLS_LDO21L 240 ++#define R_PARISC_TLS_LDO14R 241 ++#define R_PARISC_TLS_DTPMOD32 242 ++#define R_PARISC_TLS_DTPMOD64 243 ++#define R_PARISC_TLS_DTPOFF32 244 ++#define R_PARISC_TLS_DTPOFF64 245 ++#define R_PARISC_TLS_LE21L R_PARISC_TPREL21L ++#define R_PARISC_TLS_LE14R R_PARISC_TPREL14R ++#define R_PARISC_TLS_IE21L R_PARISC_LTOFF_TP21L ++#define R_PARISC_TLS_IE14R R_PARISC_LTOFF_TP14R ++#define R_PARISC_TLS_TPREL32 R_PARISC_TPREL32 ++#define R_PARISC_TLS_TPREL64 R_PARISC_TPREL64 ++#define R_PARISC_HIRESERVE 255 ++ ++ ++ ++#define PT_HP_TLS (PT_LOOS + 0x0) ++#define PT_HP_CORE_NONE (PT_LOOS + 0x1) ++#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) ++#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) ++#define PT_HP_CORE_COMM (PT_LOOS + 0x4) ++#define PT_HP_CORE_PROC (PT_LOOS + 0x5) ++#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) ++#define PT_HP_CORE_STACK (PT_LOOS + 0x7) ++#define PT_HP_CORE_SHM (PT_LOOS + 0x8) ++#define PT_HP_CORE_MMF (PT_LOOS + 0x9) ++#define PT_HP_PARALLEL (PT_LOOS + 0x10) ++#define PT_HP_FASTBIND (PT_LOOS + 0x11) ++#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) ++#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) ++#define PT_HP_STACK (PT_LOOS + 0x14) ++ ++#define PT_PARISC_ARCHEXT 0x70000000 ++#define PT_PARISC_UNWIND 0x70000001 ++ ++ ++ ++#define PF_PARISC_SBP 0x08000000 ++ ++#define PF_HP_PAGE_SIZE 0x00100000 ++#define PF_HP_FAR_SHARED 0x00200000 ++#define PF_HP_NEAR_SHARED 0x00400000 ++#define PF_HP_CODE 0x01000000 ++#define PF_HP_MODIFY 0x02000000 ++#define PF_HP_LAZYSWAP 0x04000000 ++#define PF_HP_SBP 0x08000000 ++ ++ ++ ++ ++ ++ ++#define EF_ALPHA_32BIT 1 ++#define EF_ALPHA_CANRELAX 2 ++ ++ ++ ++ ++#define SHT_ALPHA_DEBUG 0x70000001 ++#define SHT_ALPHA_REGINFO 0x70000002 ++ ++ ++ ++#define SHF_ALPHA_GPREL 0x10000000 ++ ++ ++#define STO_ALPHA_NOPV 0x80 ++#define STO_ALPHA_STD_GPLOAD 0x88 ++ ++ ++ ++#define R_ALPHA_NONE 0 ++#define R_ALPHA_REFLONG 1 ++#define R_ALPHA_REFQUAD 2 ++#define R_ALPHA_GPREL32 3 ++#define R_ALPHA_LITERAL 4 ++#define R_ALPHA_LITUSE 5 ++#define R_ALPHA_GPDISP 6 ++#define R_ALPHA_BRADDR 7 ++#define R_ALPHA_HINT 8 ++#define R_ALPHA_SREL16 9 ++#define R_ALPHA_SREL32 10 ++#define R_ALPHA_SREL64 11 ++#define R_ALPHA_GPRELHIGH 17 ++#define R_ALPHA_GPRELLOW 18 ++#define R_ALPHA_GPREL16 19 ++#define R_ALPHA_COPY 24 ++#define R_ALPHA_GLOB_DAT 25 ++#define R_ALPHA_JMP_SLOT 26 ++#define R_ALPHA_RELATIVE 27 ++#define R_ALPHA_TLS_GD_HI 28 ++#define R_ALPHA_TLSGD 29 ++#define R_ALPHA_TLS_LDM 30 ++#define R_ALPHA_DTPMOD64 31 ++#define R_ALPHA_GOTDTPREL 32 ++#define R_ALPHA_DTPREL64 33 ++#define R_ALPHA_DTPRELHI 34 ++#define R_ALPHA_DTPRELLO 35 ++#define R_ALPHA_DTPREL16 36 ++#define R_ALPHA_GOTTPREL 37 ++#define R_ALPHA_TPREL64 38 ++#define R_ALPHA_TPRELHI 39 ++#define R_ALPHA_TPRELLO 40 ++#define R_ALPHA_TPREL16 41 ++ ++#define R_ALPHA_NUM 46 ++ ++ ++#define LITUSE_ALPHA_ADDR 0 ++#define LITUSE_ALPHA_BASE 1 ++#define LITUSE_ALPHA_BYTOFF 2 ++#define LITUSE_ALPHA_JSR 3 ++#define LITUSE_ALPHA_TLS_GD 4 ++#define LITUSE_ALPHA_TLS_LDM 5 ++ ++ ++#define DT_ALPHA_PLTRO (DT_LOPROC + 0) ++#define DT_ALPHA_NUM 1 ++ ++ ++ ++ ++#define EF_PPC_EMB 0x80000000 ++ ++ ++#define EF_PPC_RELOCATABLE 0x00010000 ++#define EF_PPC_RELOCATABLE_LIB 0x00008000 ++ ++ ++ ++#define R_PPC_NONE 0 ++#define R_PPC_ADDR32 1 ++#define R_PPC_ADDR24 2 ++#define R_PPC_ADDR16 3 ++#define R_PPC_ADDR16_LO 4 ++#define R_PPC_ADDR16_HI 5 ++#define R_PPC_ADDR16_HA 6 ++#define R_PPC_ADDR14 7 ++#define R_PPC_ADDR14_BRTAKEN 8 ++#define R_PPC_ADDR14_BRNTAKEN 9 ++#define R_PPC_REL24 10 ++#define R_PPC_REL14 11 ++#define R_PPC_REL14_BRTAKEN 12 ++#define R_PPC_REL14_BRNTAKEN 13 ++#define R_PPC_GOT16 14 ++#define R_PPC_GOT16_LO 15 ++#define R_PPC_GOT16_HI 16 ++#define R_PPC_GOT16_HA 17 ++#define R_PPC_PLTREL24 18 ++#define R_PPC_COPY 19 ++#define R_PPC_GLOB_DAT 20 ++#define R_PPC_JMP_SLOT 21 ++#define R_PPC_RELATIVE 22 ++#define R_PPC_LOCAL24PC 23 ++#define R_PPC_UADDR32 24 ++#define R_PPC_UADDR16 25 ++#define R_PPC_REL32 26 ++#define R_PPC_PLT32 27 ++#define R_PPC_PLTREL32 28 ++#define R_PPC_PLT16_LO 29 ++#define R_PPC_PLT16_HI 30 ++#define R_PPC_PLT16_HA 31 ++#define R_PPC_SDAREL16 32 ++#define R_PPC_SECTOFF 33 ++#define R_PPC_SECTOFF_LO 34 ++#define R_PPC_SECTOFF_HI 35 ++#define R_PPC_SECTOFF_HA 36 ++ ++ ++#define R_PPC_TLS 67 ++#define R_PPC_DTPMOD32 68 ++#define R_PPC_TPREL16 69 ++#define R_PPC_TPREL16_LO 70 ++#define R_PPC_TPREL16_HI 71 ++#define R_PPC_TPREL16_HA 72 ++#define R_PPC_TPREL32 73 ++#define R_PPC_DTPREL16 74 ++#define R_PPC_DTPREL16_LO 75 ++#define R_PPC_DTPREL16_HI 76 ++#define R_PPC_DTPREL16_HA 77 ++#define R_PPC_DTPREL32 78 ++#define R_PPC_GOT_TLSGD16 79 ++#define R_PPC_GOT_TLSGD16_LO 80 ++#define R_PPC_GOT_TLSGD16_HI 81 ++#define R_PPC_GOT_TLSGD16_HA 82 ++#define R_PPC_GOT_TLSLD16 83 ++#define R_PPC_GOT_TLSLD16_LO 84 ++#define R_PPC_GOT_TLSLD16_HI 85 ++#define R_PPC_GOT_TLSLD16_HA 86 ++#define R_PPC_GOT_TPREL16 87 ++#define R_PPC_GOT_TPREL16_LO 88 ++#define R_PPC_GOT_TPREL16_HI 89 ++#define R_PPC_GOT_TPREL16_HA 90 ++#define R_PPC_GOT_DTPREL16 91 ++#define R_PPC_GOT_DTPREL16_LO 92 ++#define R_PPC_GOT_DTPREL16_HI 93 ++#define R_PPC_GOT_DTPREL16_HA 94 ++ ++ ++ ++#define R_PPC_EMB_NADDR32 101 ++#define R_PPC_EMB_NADDR16 102 ++#define R_PPC_EMB_NADDR16_LO 103 ++#define R_PPC_EMB_NADDR16_HI 104 ++#define R_PPC_EMB_NADDR16_HA 105 ++#define R_PPC_EMB_SDAI16 106 ++#define R_PPC_EMB_SDA2I16 107 ++#define R_PPC_EMB_SDA2REL 108 ++#define R_PPC_EMB_SDA21 109 ++#define R_PPC_EMB_MRKREF 110 ++#define R_PPC_EMB_RELSEC16 111 ++#define R_PPC_EMB_RELST_LO 112 ++#define R_PPC_EMB_RELST_HI 113 ++#define R_PPC_EMB_RELST_HA 114 ++#define R_PPC_EMB_BIT_FLD 115 ++#define R_PPC_EMB_RELSDA 116 ++ ++ ++#define R_PPC_DIAB_SDA21_LO 180 ++#define R_PPC_DIAB_SDA21_HI 181 ++#define R_PPC_DIAB_SDA21_HA 182 ++#define R_PPC_DIAB_RELSDA_LO 183 ++#define R_PPC_DIAB_RELSDA_HI 184 ++#define R_PPC_DIAB_RELSDA_HA 185 ++ ++ ++#define R_PPC_IRELATIVE 248 ++ ++ ++#define R_PPC_REL16 249 ++#define R_PPC_REL16_LO 250 ++#define R_PPC_REL16_HI 251 ++#define R_PPC_REL16_HA 252 ++ ++ ++ ++#define R_PPC_TOC16 255 ++ ++ ++#define DT_PPC_GOT (DT_LOPROC + 0) ++#define DT_PPC_NUM 1 ++ ++ ++#define R_PPC64_NONE R_PPC_NONE ++#define R_PPC64_ADDR32 R_PPC_ADDR32 ++#define R_PPC64_ADDR24 R_PPC_ADDR24 ++#define R_PPC64_ADDR16 R_PPC_ADDR16 ++#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO ++#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI ++#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA ++#define R_PPC64_ADDR14 R_PPC_ADDR14 ++#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN ++#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN ++#define R_PPC64_REL24 R_PPC_REL24 ++#define R_PPC64_REL14 R_PPC_REL14 ++#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN ++#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN ++#define R_PPC64_GOT16 R_PPC_GOT16 ++#define R_PPC64_GOT16_LO R_PPC_GOT16_LO ++#define R_PPC64_GOT16_HI R_PPC_GOT16_HI ++#define R_PPC64_GOT16_HA R_PPC_GOT16_HA ++ ++#define R_PPC64_COPY R_PPC_COPY ++#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT ++#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT ++#define R_PPC64_RELATIVE R_PPC_RELATIVE ++ ++#define R_PPC64_UADDR32 R_PPC_UADDR32 ++#define R_PPC64_UADDR16 R_PPC_UADDR16 ++#define R_PPC64_REL32 R_PPC_REL32 ++#define R_PPC64_PLT32 R_PPC_PLT32 ++#define R_PPC64_PLTREL32 R_PPC_PLTREL32 ++#define R_PPC64_PLT16_LO R_PPC_PLT16_LO ++#define R_PPC64_PLT16_HI R_PPC_PLT16_HI ++#define R_PPC64_PLT16_HA R_PPC_PLT16_HA ++ ++#define R_PPC64_SECTOFF R_PPC_SECTOFF ++#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO ++#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI ++#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA ++#define R_PPC64_ADDR30 37 ++#define R_PPC64_ADDR64 38 ++#define R_PPC64_ADDR16_HIGHER 39 ++#define R_PPC64_ADDR16_HIGHERA 40 ++#define R_PPC64_ADDR16_HIGHEST 41 ++#define R_PPC64_ADDR16_HIGHESTA 42 ++#define R_PPC64_UADDR64 43 ++#define R_PPC64_REL64 44 ++#define R_PPC64_PLT64 45 ++#define R_PPC64_PLTREL64 46 ++#define R_PPC64_TOC16 47 ++#define R_PPC64_TOC16_LO 48 ++#define R_PPC64_TOC16_HI 49 ++#define R_PPC64_TOC16_HA 50 ++#define R_PPC64_TOC 51 ++#define R_PPC64_PLTGOT16 52 ++#define R_PPC64_PLTGOT16_LO 53 ++#define R_PPC64_PLTGOT16_HI 54 ++#define R_PPC64_PLTGOT16_HA 55 ++ ++#define R_PPC64_ADDR16_DS 56 ++#define R_PPC64_ADDR16_LO_DS 57 ++#define R_PPC64_GOT16_DS 58 ++#define R_PPC64_GOT16_LO_DS 59 ++#define R_PPC64_PLT16_LO_DS 60 ++#define R_PPC64_SECTOFF_DS 61 ++#define R_PPC64_SECTOFF_LO_DS 62 ++#define R_PPC64_TOC16_DS 63 ++#define R_PPC64_TOC16_LO_DS 64 ++#define R_PPC64_PLTGOT16_DS 65 ++#define R_PPC64_PLTGOT16_LO_DS 66 ++ ++ ++#define R_PPC64_TLS 67 ++#define R_PPC64_DTPMOD64 68 ++#define R_PPC64_TPREL16 69 ++#define R_PPC64_TPREL16_LO 70 ++#define R_PPC64_TPREL16_HI 71 ++#define R_PPC64_TPREL16_HA 72 ++#define R_PPC64_TPREL64 73 ++#define R_PPC64_DTPREL16 74 ++#define R_PPC64_DTPREL16_LO 75 ++#define R_PPC64_DTPREL16_HI 76 ++#define R_PPC64_DTPREL16_HA 77 ++#define R_PPC64_DTPREL64 78 ++#define R_PPC64_GOT_TLSGD16 79 ++#define R_PPC64_GOT_TLSGD16_LO 80 ++#define R_PPC64_GOT_TLSGD16_HI 81 ++#define R_PPC64_GOT_TLSGD16_HA 82 ++#define R_PPC64_GOT_TLSLD16 83 ++#define R_PPC64_GOT_TLSLD16_LO 84 ++#define R_PPC64_GOT_TLSLD16_HI 85 ++#define R_PPC64_GOT_TLSLD16_HA 86 ++#define R_PPC64_GOT_TPREL16_DS 87 ++#define R_PPC64_GOT_TPREL16_LO_DS 88 ++#define R_PPC64_GOT_TPREL16_HI 89 ++#define R_PPC64_GOT_TPREL16_HA 90 ++#define R_PPC64_GOT_DTPREL16_DS 91 ++#define R_PPC64_GOT_DTPREL16_LO_DS 92 ++#define R_PPC64_GOT_DTPREL16_HI 93 ++#define R_PPC64_GOT_DTPREL16_HA 94 ++#define R_PPC64_TPREL16_DS 95 ++#define R_PPC64_TPREL16_LO_DS 96 ++#define R_PPC64_TPREL16_HIGHER 97 ++#define R_PPC64_TPREL16_HIGHERA 98 ++#define R_PPC64_TPREL16_HIGHEST 99 ++#define R_PPC64_TPREL16_HIGHESTA 100 ++#define R_PPC64_DTPREL16_DS 101 ++#define R_PPC64_DTPREL16_LO_DS 102 ++#define R_PPC64_DTPREL16_HIGHER 103 ++#define R_PPC64_DTPREL16_HIGHERA 104 ++#define R_PPC64_DTPREL16_HIGHEST 105 ++#define R_PPC64_DTPREL16_HIGHESTA 106 ++ ++ ++#define R_PPC64_JMP_IREL 247 ++#define R_PPC64_IRELATIVE 248 ++#define R_PPC64_REL16 249 ++#define R_PPC64_REL16_LO 250 ++#define R_PPC64_REL16_HI 251 ++#define R_PPC64_REL16_HA 252 ++ ++ ++#define DT_PPC64_GLINK (DT_LOPROC + 0) ++#define DT_PPC64_OPD (DT_LOPROC + 1) ++#define DT_PPC64_OPDSZ (DT_LOPROC + 2) ++#define DT_PPC64_NUM 3 ++ ++ ++ ++ ++ ++#define EF_ARM_RELEXEC 0x01 ++#define EF_ARM_HASENTRY 0x02 ++#define EF_ARM_INTERWORK 0x04 ++#define EF_ARM_APCS_26 0x08 ++#define EF_ARM_APCS_FLOAT 0x10 ++#define EF_ARM_PIC 0x20 ++#define EF_ARM_ALIGN8 0x40 ++#define EF_ARM_NEW_ABI 0x80 ++#define EF_ARM_OLD_ABI 0x100 ++#define EF_ARM_SOFT_FLOAT 0x200 ++#define EF_ARM_VFP_FLOAT 0x400 ++#define EF_ARM_MAVERICK_FLOAT 0x800 ++ ++#define EF_ARM_ABI_FLOAT_SOFT 0x200 ++#define EF_ARM_ABI_FLOAT_HARD 0x400 ++ ++ ++#define EF_ARM_SYMSARESORTED 0x04 ++#define EF_ARM_DYNSYMSUSESEGIDX 0x08 ++#define EF_ARM_MAPSYMSFIRST 0x10 ++#define EF_ARM_EABIMASK 0XFF000000 ++ ++ ++#define EF_ARM_BE8 0x00800000 ++#define EF_ARM_LE8 0x00400000 ++ ++#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) ++#define EF_ARM_EABI_UNKNOWN 0x00000000 ++#define EF_ARM_EABI_VER1 0x01000000 ++#define EF_ARM_EABI_VER2 0x02000000 ++#define EF_ARM_EABI_VER3 0x03000000 ++#define EF_ARM_EABI_VER4 0x04000000 ++#define EF_ARM_EABI_VER5 0x05000000 ++ ++ ++#define STT_ARM_TFUNC STT_LOPROC ++#define STT_ARM_16BIT STT_HIPROC ++ ++ ++#define SHF_ARM_ENTRYSECT 0x10000000 ++#define SHF_ARM_COMDEF 0x80000000 ++ ++ ++ ++#define PF_ARM_SB 0x10000000 ++ ++#define PF_ARM_PI 0x20000000 ++#define PF_ARM_ABS 0x40000000 ++ ++ ++#define PT_ARM_EXIDX (PT_LOPROC + 1) ++ ++ ++#define SHT_ARM_EXIDX (SHT_LOPROC + 1) ++#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) ++#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) ++ ++ ++#define R_AARCH64_NONE 0 ++#define R_AARCH64_ABS64 257 ++#define R_AARCH64_ABS32 258 ++#define R_AARCH64_COPY 1024 ++#define R_AARCH64_GLOB_DAT 1025 ++#define R_AARCH64_JUMP_SLOT 1026 ++#define R_AARCH64_RELATIVE 1027 ++#define R_AARCH64_TLS_DTPMOD64 1028 ++#define R_AARCH64_TLS_DTPREL64 1029 ++#define R_AARCH64_TLS_TPREL64 1030 ++#define R_AARCH64_TLSDESC 1031 ++ ++ ++#define R_ARM_NONE 0 ++#define R_ARM_PC24 1 ++#define R_ARM_ABS32 2 ++#define R_ARM_REL32 3 ++#define R_ARM_PC13 4 ++#define R_ARM_ABS16 5 ++#define R_ARM_ABS12 6 ++#define R_ARM_THM_ABS5 7 ++#define R_ARM_ABS8 8 ++#define R_ARM_SBREL32 9 ++#define R_ARM_THM_PC22 10 ++#define R_ARM_THM_PC8 11 ++#define R_ARM_AMP_VCALL9 12 ++#define R_ARM_TLS_DESC 13 ++#define R_ARM_THM_SWI8 14 ++#define R_ARM_XPC25 15 ++#define R_ARM_THM_XPC22 16 ++#define R_ARM_TLS_DTPMOD32 17 ++#define R_ARM_TLS_DTPOFF32 18 ++#define R_ARM_TLS_TPOFF32 19 ++#define R_ARM_COPY 20 ++#define R_ARM_GLOB_DAT 21 ++#define R_ARM_JUMP_SLOT 22 ++#define R_ARM_RELATIVE 23 ++#define R_ARM_GOTOFF 24 ++#define R_ARM_GOTPC 25 ++#define R_ARM_GOT32 26 ++#define R_ARM_PLT32 27 ++#define R_ARM_CALL 28 ++#define R_ARM_JUMP24 29 ++#define R_ARM_THM_JUMP24 30 ++#define R_ARM_BASE_ABS 31 ++#define R_ARM_ALU_PCREL_7_0 32 ++#define R_ARM_ALU_PCREL_15_8 33 ++#define R_ARM_ALU_PCREL_23_15 34 ++#define R_ARM_LDR_SBREL_11_0 35 ++#define R_ARM_ALU_SBREL_19_12 36 ++#define R_ARM_ALU_SBREL_27_20 37 ++#define R_ARM_TARGET1 38 ++#define R_ARM_SBREL31 39 ++#define R_ARM_V4BX 40 ++#define R_ARM_TARGET2 41 ++#define R_ARM_PREL31 42 ++#define R_ARM_MOVW_ABS_NC 43 ++#define R_ARM_MOVT_ABS 44 ++#define R_ARM_MOVW_PREL_NC 45 ++#define R_ARM_MOVT_PREL 46 ++#define R_ARM_THM_MOVW_ABS_NC 47 ++#define R_ARM_THM_MOVT_ABS 48 ++#define R_ARM_THM_MOVW_PREL_NC 49 ++#define R_ARM_THM_MOVT_PREL 50 ++#define R_ARM_THM_JUMP19 51 ++#define R_ARM_THM_JUMP6 52 ++#define R_ARM_THM_ALU_PREL_11_0 53 ++#define R_ARM_THM_PC12 54 ++#define R_ARM_ABS32_NOI 55 ++#define R_ARM_REL32_NOI 56 ++#define R_ARM_ALU_PC_G0_NC 57 ++#define R_ARM_ALU_PC_G0 58 ++#define R_ARM_ALU_PC_G1_NC 59 ++#define R_ARM_ALU_PC_G1 60 ++#define R_ARM_ALU_PC_G2 61 ++#define R_ARM_LDR_PC_G1 62 ++#define R_ARM_LDR_PC_G2 63 ++#define R_ARM_LDRS_PC_G0 64 ++#define R_ARM_LDRS_PC_G1 65 ++#define R_ARM_LDRS_PC_G2 66 ++#define R_ARM_LDC_PC_G0 67 ++#define R_ARM_LDC_PC_G1 68 ++#define R_ARM_LDC_PC_G2 69 ++#define R_ARM_ALU_SB_G0_NC 70 ++#define R_ARM_ALU_SB_G0 71 ++#define R_ARM_ALU_SB_G1_NC 72 ++#define R_ARM_ALU_SB_G1 73 ++#define R_ARM_ALU_SB_G2 74 ++#define R_ARM_LDR_SB_G0 75 ++#define R_ARM_LDR_SB_G1 76 ++#define R_ARM_LDR_SB_G2 77 ++#define R_ARM_LDRS_SB_G0 78 ++#define R_ARM_LDRS_SB_G1 79 ++#define R_ARM_LDRS_SB_G2 80 ++#define R_ARM_LDC_SB_G0 81 ++#define R_ARM_LDC_SB_G1 82 ++#define R_ARM_LDC_SB_G2 83 ++#define R_ARM_MOVW_BREL_NC 84 ++#define R_ARM_MOVT_BREL 85 ++#define R_ARM_MOVW_BREL 86 ++#define R_ARM_THM_MOVW_BREL_NC 87 ++#define R_ARM_THM_MOVT_BREL 88 ++#define R_ARM_THM_MOVW_BREL 89 ++#define R_ARM_TLS_GOTDESC 90 ++#define R_ARM_TLS_CALL 91 ++#define R_ARM_TLS_DESCSEQ 92 ++#define R_ARM_THM_TLS_CALL 93 ++#define R_ARM_PLT32_ABS 94 ++#define R_ARM_GOT_ABS 95 ++#define R_ARM_GOT_PREL 96 ++#define R_ARM_GOT_BREL12 97 ++#define R_ARM_GOTOFF12 98 ++#define R_ARM_GOTRELAX 99 ++#define R_ARM_GNU_VTENTRY 100 ++#define R_ARM_GNU_VTINHERIT 101 ++#define R_ARM_THM_PC11 102 ++#define R_ARM_THM_PC9 103 ++#define R_ARM_TLS_GD32 104 ++ ++#define R_ARM_TLS_LDM32 105 ++ ++#define R_ARM_TLS_LDO32 106 ++ ++#define R_ARM_TLS_IE32 107 ++ ++#define R_ARM_TLS_LE32 108 ++#define R_ARM_TLS_LDO12 109 ++#define R_ARM_TLS_LE12 110 ++#define R_ARM_TLS_IE12GP 111 ++#define R_ARM_ME_TOO 128 ++#define R_ARM_THM_TLS_DESCSEQ 129 ++#define R_ARM_THM_TLS_DESCSEQ16 129 ++#define R_ARM_THM_TLS_DESCSEQ32 130 ++#define R_ARM_THM_GOT_BREL12 131 ++#define R_ARM_IRELATIVE 160 ++#define R_ARM_RXPC25 249 ++#define R_ARM_RSBREL32 250 ++#define R_ARM_THM_RPC22 251 ++#define R_ARM_RREL32 252 ++#define R_ARM_RABS22 253 ++#define R_ARM_RPC24 254 ++#define R_ARM_RBASE 255 ++ ++#define R_ARM_NUM 256 ++ ++ ++ ++ ++#define EF_IA_64_MASKOS 0x0000000f ++#define EF_IA_64_ABI64 0x00000010 ++#define EF_IA_64_ARCH 0xff000000 ++ ++ ++#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) ++#define PT_IA_64_UNWIND (PT_LOPROC + 1) ++#define PT_IA_64_HP_OPT_ANOT (PT_LOOS + 0x12) ++#define PT_IA_64_HP_HSL_ANOT (PT_LOOS + 0x13) ++#define PT_IA_64_HP_STACK (PT_LOOS + 0x14) ++ ++ ++#define PF_IA_64_NORECOV 0x80000000 ++ ++ ++#define SHT_IA_64_EXT (SHT_LOPROC + 0) ++#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) ++ ++ ++#define SHF_IA_64_SHORT 0x10000000 ++#define SHF_IA_64_NORECOV 0x20000000 ++ ++ ++#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) ++#define DT_IA_64_NUM 1 ++ ++ ++#define R_IA64_NONE 0x00 ++#define R_IA64_IMM14 0x21 ++#define R_IA64_IMM22 0x22 ++#define R_IA64_IMM64 0x23 ++#define R_IA64_DIR32MSB 0x24 ++#define R_IA64_DIR32LSB 0x25 ++#define R_IA64_DIR64MSB 0x26 ++#define R_IA64_DIR64LSB 0x27 ++#define R_IA64_GPREL22 0x2a ++#define R_IA64_GPREL64I 0x2b ++#define R_IA64_GPREL32MSB 0x2c ++#define R_IA64_GPREL32LSB 0x2d ++#define R_IA64_GPREL64MSB 0x2e ++#define R_IA64_GPREL64LSB 0x2f ++#define R_IA64_LTOFF22 0x32 ++#define R_IA64_LTOFF64I 0x33 ++#define R_IA64_PLTOFF22 0x3a ++#define R_IA64_PLTOFF64I 0x3b ++#define R_IA64_PLTOFF64MSB 0x3e ++#define R_IA64_PLTOFF64LSB 0x3f ++#define R_IA64_FPTR64I 0x43 ++#define R_IA64_FPTR32MSB 0x44 ++#define R_IA64_FPTR32LSB 0x45 ++#define R_IA64_FPTR64MSB 0x46 ++#define R_IA64_FPTR64LSB 0x47 ++#define R_IA64_PCREL60B 0x48 ++#define R_IA64_PCREL21B 0x49 ++#define R_IA64_PCREL21M 0x4a ++#define R_IA64_PCREL21F 0x4b ++#define R_IA64_PCREL32MSB 0x4c ++#define R_IA64_PCREL32LSB 0x4d ++#define R_IA64_PCREL64MSB 0x4e ++#define R_IA64_PCREL64LSB 0x4f ++#define R_IA64_LTOFF_FPTR22 0x52 ++#define R_IA64_LTOFF_FPTR64I 0x53 ++#define R_IA64_LTOFF_FPTR32MSB 0x54 ++#define R_IA64_LTOFF_FPTR32LSB 0x55 ++#define R_IA64_LTOFF_FPTR64MSB 0x56 ++#define R_IA64_LTOFF_FPTR64LSB 0x57 ++#define R_IA64_SEGREL32MSB 0x5c ++#define R_IA64_SEGREL32LSB 0x5d ++#define R_IA64_SEGREL64MSB 0x5e ++#define R_IA64_SEGREL64LSB 0x5f ++#define R_IA64_SECREL32MSB 0x64 ++#define R_IA64_SECREL32LSB 0x65 ++#define R_IA64_SECREL64MSB 0x66 ++#define R_IA64_SECREL64LSB 0x67 ++#define R_IA64_REL32MSB 0x6c ++#define R_IA64_REL32LSB 0x6d ++#define R_IA64_REL64MSB 0x6e ++#define R_IA64_REL64LSB 0x6f ++#define R_IA64_LTV32MSB 0x74 ++#define R_IA64_LTV32LSB 0x75 ++#define R_IA64_LTV64MSB 0x76 ++#define R_IA64_LTV64LSB 0x77 ++#define R_IA64_PCREL21BI 0x79 ++#define R_IA64_PCREL22 0x7a ++#define R_IA64_PCREL64I 0x7b ++#define R_IA64_IPLTMSB 0x80 ++#define R_IA64_IPLTLSB 0x81 ++#define R_IA64_COPY 0x84 ++#define R_IA64_SUB 0x85 ++#define R_IA64_LTOFF22X 0x86 ++#define R_IA64_LDXMOV 0x87 ++#define R_IA64_TPREL14 0x91 ++#define R_IA64_TPREL22 0x92 ++#define R_IA64_TPREL64I 0x93 ++#define R_IA64_TPREL64MSB 0x96 ++#define R_IA64_TPREL64LSB 0x97 ++#define R_IA64_LTOFF_TPREL22 0x9a ++#define R_IA64_DTPMOD64MSB 0xa6 ++#define R_IA64_DTPMOD64LSB 0xa7 ++#define R_IA64_LTOFF_DTPMOD22 0xaa ++#define R_IA64_DTPREL14 0xb1 ++#define R_IA64_DTPREL22 0xb2 ++#define R_IA64_DTPREL64I 0xb3 ++#define R_IA64_DTPREL32MSB 0xb4 ++#define R_IA64_DTPREL32LSB 0xb5 ++#define R_IA64_DTPREL64MSB 0xb6 ++#define R_IA64_DTPREL64LSB 0xb7 ++#define R_IA64_LTOFF_DTPREL22 0xba ++ ++ ++ ++ ++#define R_SH_NONE 0 ++#define R_SH_DIR32 1 ++#define R_SH_REL32 2 ++#define R_SH_DIR8WPN 3 ++#define R_SH_IND12W 4 ++#define R_SH_DIR8WPL 5 ++#define R_SH_DIR8WPZ 6 ++#define R_SH_DIR8BP 7 ++#define R_SH_DIR8W 8 ++#define R_SH_DIR8L 9 ++#define R_SH_SWITCH16 25 ++#define R_SH_SWITCH32 26 ++#define R_SH_USES 27 ++#define R_SH_COUNT 28 ++#define R_SH_ALIGN 29 ++#define R_SH_CODE 30 ++#define R_SH_DATA 31 ++#define R_SH_LABEL 32 ++#define R_SH_SWITCH8 33 ++#define R_SH_GNU_VTINHERIT 34 ++#define R_SH_GNU_VTENTRY 35 ++#define R_SH_TLS_GD_32 144 ++#define R_SH_TLS_LD_32 145 ++#define R_SH_TLS_LDO_32 146 ++#define R_SH_TLS_IE_32 147 ++#define R_SH_TLS_LE_32 148 ++#define R_SH_TLS_DTPMOD32 149 ++#define R_SH_TLS_DTPOFF32 150 ++#define R_SH_TLS_TPOFF32 151 ++#define R_SH_GOT32 160 ++#define R_SH_PLT32 161 ++#define R_SH_COPY 162 ++#define R_SH_GLOB_DAT 163 ++#define R_SH_JMP_SLOT 164 ++#define R_SH_RELATIVE 165 ++#define R_SH_GOTOFF 166 ++#define R_SH_GOTPC 167 ++ ++#define R_SH_NUM 256 ++ ++ ++ ++#define R_390_NONE 0 ++#define R_390_8 1 ++#define R_390_12 2 ++#define R_390_16 3 ++#define R_390_32 4 ++#define R_390_PC32 5 ++#define R_390_GOT12 6 ++#define R_390_GOT32 7 ++#define R_390_PLT32 8 ++#define R_390_COPY 9 ++#define R_390_GLOB_DAT 10 ++#define R_390_JMP_SLOT 11 ++#define R_390_RELATIVE 12 ++#define R_390_GOTOFF32 13 ++#define R_390_GOTPC 14 ++#define R_390_GOT16 15 ++#define R_390_PC16 16 ++#define R_390_PC16DBL 17 ++#define R_390_PLT16DBL 18 ++#define R_390_PC32DBL 19 ++#define R_390_PLT32DBL 20 ++#define R_390_GOTPCDBL 21 ++#define R_390_64 22 ++#define R_390_PC64 23 ++#define R_390_GOT64 24 ++#define R_390_PLT64 25 ++#define R_390_GOTENT 26 ++#define R_390_GOTOFF16 27 ++#define R_390_GOTOFF64 28 ++#define R_390_GOTPLT12 29 ++#define R_390_GOTPLT16 30 ++#define R_390_GOTPLT32 31 ++#define R_390_GOTPLT64 32 ++#define R_390_GOTPLTENT 33 ++#define R_390_PLTOFF16 34 ++#define R_390_PLTOFF32 35 ++#define R_390_PLTOFF64 36 ++#define R_390_TLS_LOAD 37 ++#define R_390_TLS_GDCALL 38 ++ ++#define R_390_TLS_LDCALL 39 ++ ++#define R_390_TLS_GD32 40 ++ ++#define R_390_TLS_GD64 41 ++ ++#define R_390_TLS_GOTIE12 42 ++ ++#define R_390_TLS_GOTIE32 43 ++ ++#define R_390_TLS_GOTIE64 44 ++ ++#define R_390_TLS_LDM32 45 ++ ++#define R_390_TLS_LDM64 46 ++ ++#define R_390_TLS_IE32 47 ++ ++#define R_390_TLS_IE64 48 ++ ++#define R_390_TLS_IEENT 49 ++ ++#define R_390_TLS_LE32 50 ++ ++#define R_390_TLS_LE64 51 ++ ++#define R_390_TLS_LDO32 52 ++ ++#define R_390_TLS_LDO64 53 ++ ++#define R_390_TLS_DTPMOD 54 ++#define R_390_TLS_DTPOFF 55 ++#define R_390_TLS_TPOFF 56 ++ ++#define R_390_20 57 ++#define R_390_GOT20 58 ++#define R_390_GOTPLT20 59 ++#define R_390_TLS_GOTIE20 60 ++ ++ ++#define R_390_NUM 61 ++ ++ ++ ++#define R_CRIS_NONE 0 ++#define R_CRIS_8 1 ++#define R_CRIS_16 2 ++#define R_CRIS_32 3 ++#define R_CRIS_8_PCREL 4 ++#define R_CRIS_16_PCREL 5 ++#define R_CRIS_32_PCREL 6 ++#define R_CRIS_GNU_VTINHERIT 7 ++#define R_CRIS_GNU_VTENTRY 8 ++#define R_CRIS_COPY 9 ++#define R_CRIS_GLOB_DAT 10 ++#define R_CRIS_JUMP_SLOT 11 ++#define R_CRIS_RELATIVE 12 ++#define R_CRIS_16_GOT 13 ++#define R_CRIS_32_GOT 14 ++#define R_CRIS_16_GOTPLT 15 ++#define R_CRIS_32_GOTPLT 16 ++#define R_CRIS_32_GOTREL 17 ++#define R_CRIS_32_PLT_GOTREL 18 ++#define R_CRIS_32_PLT_PCREL 19 ++ ++#define R_CRIS_NUM 20 ++ ++ ++ ++#define R_X86_64_NONE 0 ++#define R_X86_64_64 1 ++#define R_X86_64_PC32 2 ++#define R_X86_64_GOT32 3 ++#define R_X86_64_PLT32 4 ++#define R_X86_64_COPY 5 ++#define R_X86_64_GLOB_DAT 6 ++#define R_X86_64_JUMP_SLOT 7 ++#define R_X86_64_RELATIVE 8 ++#define R_X86_64_GOTPCREL 9 ++ ++#define R_X86_64_32 10 ++#define R_X86_64_32S 11 ++#define R_X86_64_16 12 ++#define R_X86_64_PC16 13 ++#define R_X86_64_8 14 ++#define R_X86_64_PC8 15 ++#define R_X86_64_DTPMOD64 16 ++#define R_X86_64_DTPOFF64 17 ++#define R_X86_64_TPOFF64 18 ++#define R_X86_64_TLSGD 19 ++ ++#define R_X86_64_TLSLD 20 ++ ++#define R_X86_64_DTPOFF32 21 ++#define R_X86_64_GOTTPOFF 22 ++ ++#define R_X86_64_TPOFF32 23 ++#define R_X86_64_PC64 24 ++#define R_X86_64_GOTOFF64 25 ++#define R_X86_64_GOTPC32 26 ++#define R_X86_64_GOT64 27 ++#define R_X86_64_GOTPCREL64 28 ++#define R_X86_64_GOTPC64 29 ++#define R_X86_64_GOTPLT64 30 ++#define R_X86_64_PLTOFF64 31 ++#define R_X86_64_SIZE32 32 ++#define R_X86_64_SIZE64 33 ++ ++#define R_X86_64_GOTPC32_TLSDESC 34 ++#define R_X86_64_TLSDESC_CALL 35 ++ ++#define R_X86_64_TLSDESC 36 ++#define R_X86_64_IRELATIVE 37 ++#define R_X86_64_RELATIVE64 38 ++#define R_X86_64_NUM 39 ++ ++ ++ ++#define R_MN10300_NONE 0 ++#define R_MN10300_32 1 ++#define R_MN10300_16 2 ++#define R_MN10300_8 3 ++#define R_MN10300_PCREL32 4 ++#define R_MN10300_PCREL16 5 ++#define R_MN10300_PCREL8 6 ++#define R_MN10300_GNU_VTINHERIT 7 ++#define R_MN10300_GNU_VTENTRY 8 ++#define R_MN10300_24 9 ++#define R_MN10300_GOTPC32 10 ++#define R_MN10300_GOTPC16 11 ++#define R_MN10300_GOTOFF32 12 ++#define R_MN10300_GOTOFF24 13 ++#define R_MN10300_GOTOFF16 14 ++#define R_MN10300_PLT32 15 ++#define R_MN10300_PLT16 16 ++#define R_MN10300_GOT32 17 ++#define R_MN10300_GOT24 18 ++#define R_MN10300_GOT16 19 ++#define R_MN10300_COPY 20 ++#define R_MN10300_GLOB_DAT 21 ++#define R_MN10300_JMP_SLOT 22 ++#define R_MN10300_RELATIVE 23 ++ ++#define R_MN10300_NUM 24 ++ ++ ++ ++#define R_M32R_NONE 0 ++#define R_M32R_16 1 ++#define R_M32R_32 2 ++#define R_M32R_24 3 ++#define R_M32R_10_PCREL 4 ++#define R_M32R_18_PCREL 5 ++#define R_M32R_26_PCREL 6 ++#define R_M32R_HI16_ULO 7 ++#define R_M32R_HI16_SLO 8 ++#define R_M32R_LO16 9 ++#define R_M32R_SDA16 10 ++#define R_M32R_GNU_VTINHERIT 11 ++#define R_M32R_GNU_VTENTRY 12 ++ ++#define R_M32R_16_RELA 33 ++#define R_M32R_32_RELA 34 ++#define R_M32R_24_RELA 35 ++#define R_M32R_10_PCREL_RELA 36 ++#define R_M32R_18_PCREL_RELA 37 ++#define R_M32R_26_PCREL_RELA 38 ++#define R_M32R_HI16_ULO_RELA 39 ++#define R_M32R_HI16_SLO_RELA 40 ++#define R_M32R_LO16_RELA 41 ++#define R_M32R_SDA16_RELA 42 ++#define R_M32R_RELA_GNU_VTINHERIT 43 ++#define R_M32R_RELA_GNU_VTENTRY 44 ++#define R_M32R_REL32 45 ++ ++#define R_M32R_GOT24 48 ++#define R_M32R_26_PLTREL 49 ++#define R_M32R_COPY 50 ++#define R_M32R_GLOB_DAT 51 ++#define R_M32R_JMP_SLOT 52 ++#define R_M32R_RELATIVE 53 ++#define R_M32R_GOTOFF 54 ++#define R_M32R_GOTPC24 55 ++#define R_M32R_GOT16_HI_ULO 56 ++ ++#define R_M32R_GOT16_HI_SLO 57 ++ ++#define R_M32R_GOT16_LO 58 ++#define R_M32R_GOTPC_HI_ULO 59 ++ ++#define R_M32R_GOTPC_HI_SLO 60 ++ ++#define R_M32R_GOTPC_LO 61 ++ ++#define R_M32R_GOTOFF_HI_ULO 62 ++ ++#define R_M32R_GOTOFF_HI_SLO 63 ++ ++#define R_M32R_GOTOFF_LO 64 ++#define R_M32R_NUM 256 ++ ++#define R_MICROBLAZE_NONE 0 ++#define R_MICROBLAZE_32 1 ++#define R_MICROBLAZE_32_PCREL 2 ++#define R_MICROBLAZE_64_PCREL 3 ++#define R_MICROBLAZE_32_PCREL_LO 4 ++#define R_MICROBLAZE_64 5 ++#define R_MICROBLAZE_32_LO 6 ++#define R_MICROBLAZE_SRO32 7 ++#define R_MICROBLAZE_SRW32 8 ++#define R_MICROBLAZE_64_NONE 9 ++#define R_MICROBLAZE_32_SYM_OP_SYM 10 ++#define R_MICROBLAZE_GNU_VTINHERIT 11 ++#define R_MICROBLAZE_GNU_VTENTRY 12 ++#define R_MICROBLAZE_GOTPC_64 13 ++#define R_MICROBLAZE_GOT_64 14 ++#define R_MICROBLAZE_PLT_64 15 ++#define R_MICROBLAZE_REL 16 ++#define R_MICROBLAZE_JUMP_SLOT 17 ++#define R_MICROBLAZE_GLOB_DAT 18 ++#define R_MICROBLAZE_GOTOFF_64 19 ++#define R_MICROBLAZE_GOTOFF_32 20 ++#define R_MICROBLAZE_COPY 21 ++#define R_MICROBLAZE_TLS 22 ++#define R_MICROBLAZE_TLSGD 23 ++#define R_MICROBLAZE_TLSLD 24 ++#define R_MICROBLAZE_TLSDTPMOD32 25 ++#define R_MICROBLAZE_TLSDTPREL32 26 ++#define R_MICROBLAZE_TLSDTPREL64 27 ++#define R_MICROBLAZE_TLSGOTTPREL32 28 ++#define R_MICROBLAZE_TLSTPREL32 29 ++ ++#ifdef __cplusplus ++} ++#endif ++ ++ ++#endif diff --git a/target/linux/patches/3.15-rc8/sgidefs.patch b/target/linux/patches/3.15-rc8/sgidefs.patch new file mode 100644 index 000000000..f00a284d9 --- /dev/null +++ b/target/linux/patches/3.15-rc8/sgidefs.patch @@ -0,0 +1,18 @@ +diff -Nur linux-3.11.5.orig/arch/mips/include/uapi/asm/sgidefs.h linux-3.11.5/arch/mips/include/uapi/asm/sgidefs.h +--- linux-3.11.5.orig/arch/mips/include/uapi/asm/sgidefs.h 2013-10-14 03:14:45.000000000 +0200 ++++ linux-3.11.5/arch/mips/include/uapi/asm/sgidefs.h 2013-11-08 22:01:28.000000000 +0100 +@@ -11,14 +11,6 @@ + #define __ASM_SGIDEFS_H + + /* +- * Using a Linux compiler for building Linux seems logic but not to +- * everybody. +- */ +-#ifndef __linux__ +-#error Use a Linux compiler or give up. +-#endif +- +-/* + * Definitions for the ISA levels + * + * With the introduction of MIPS32 / MIPS64 instruction sets definitions diff --git a/target/linux/patches/3.15-rc8/sortext.patch b/target/linux/patches/3.15-rc8/sortext.patch new file mode 100644 index 000000000..8fd4e1d6b --- /dev/null +++ b/target/linux/patches/3.15-rc8/sortext.patch @@ -0,0 +1,33 @@ +diff -Nur linux-3.12.6.orig/arch/arm/Kconfig linux-3.12.6/arch/arm/Kconfig +--- linux-3.12.6.orig/arch/arm/Kconfig 2013-12-20 16:51:33.000000000 +0100 ++++ linux-3.12.6/arch/arm/Kconfig 2013-12-28 19:29:33.000000000 +0100 +@@ -6,7 +6,6 @@ + select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_HAVE_CUSTOM_GPIO_H + select ARCH_WANT_IPC_PARSE_VERSION +- select BUILDTIME_EXTABLE_SORT if MMU + select CLONE_BACKWARDS + select CPU_PM if (SUSPEND || CPU_IDLE) + select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU +diff -Nur linux-3.12.6.orig/arch/mips/Kconfig linux-3.12.6/arch/mips/Kconfig +--- linux-3.12.6.orig/arch/mips/Kconfig 2013-12-20 16:51:33.000000000 +0100 ++++ linux-3.12.6/arch/mips/Kconfig 2013-12-28 19:30:06.000000000 +0100 +@@ -35,7 +35,6 @@ + select HAVE_MEMBLOCK_NODE_MAP + select ARCH_DISCARD_MEMBLOCK + select GENERIC_SMP_IDLE_THREAD +- select BUILDTIME_EXTABLE_SORT + select GENERIC_CLOCKEVENTS + select GENERIC_CMOS_UPDATE + select HAVE_MOD_ARCH_SPECIFIC +diff -Nur linux-3.12.6.orig/arch/x86/Kconfig linux-3.12.6/arch/x86/Kconfig +--- linux-3.12.6.orig/arch/x86/Kconfig 2013-12-20 16:51:33.000000000 +0100 ++++ linux-3.12.6/arch/x86/Kconfig 2013-12-28 19:29:50.000000000 +0100 +@@ -100,7 +100,6 @@ + select GENERIC_SMP_IDLE_THREAD + select ARCH_WANT_IPC_PARSE_VERSION if X86_32 + select HAVE_ARCH_SECCOMP_FILTER +- select BUILDTIME_EXTABLE_SORT + select GENERIC_CMOS_UPDATE + select HAVE_ARCH_SOFT_DIRTY + select CLOCKSOURCE_WATCHDOG diff --git a/target/linux/patches/3.15-rc8/startup.patch b/target/linux/patches/3.15-rc8/startup.patch new file mode 100644 index 000000000..d396b75e4 --- /dev/null +++ b/target/linux/patches/3.15-rc8/startup.patch @@ -0,0 +1,37 @@ +diff -Nur linux-3.13.3.orig/init/main.c linux-3.13.3/init/main.c +--- linux-3.13.3.orig/init/main.c 2014-02-13 23:00:14.000000000 +0100 ++++ linux-3.13.3/init/main.c 2014-02-17 11:35:14.000000000 +0100 +@@ -916,6 +917,8 @@ + if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) + pr_err("Warning: unable to open an initial console.\n"); + ++ printk(KERN_WARNING "Starting Linux (built with OpenADK).\n"); ++ + (void) sys_dup(0); + (void) sys_dup(0); + /* +diff -Nur linux-3.13.6.orig/init/initramfs.c linux-3.13.6/init/initramfs.c +--- linux-3.13.6.orig/init/initramfs.c 2014-03-07 07:07:02.000000000 +0100 ++++ linux-3.13.6/init/initramfs.c 2014-03-15 12:11:31.882731916 +0100 +@@ -622,6 +622,9 @@ + */ + load_default_modules(); + } ++#ifdef CONFIG_DEVTMPFS_MOUNT ++ devtmpfs_mount("dev"); ++#endif + return 0; + } + rootfs_initcall(populate_rootfs); +diff -Nur linux-3.13.6.orig/init/main.c linux-3.13.6/init/main.c +--- linux-3.13.6.orig/init/main.c 2014-03-07 07:07:02.000000000 +0100 ++++ linux-3.13.6/init/main.c 2014-03-15 12:13:16.459024452 +0100 +@@ -924,7 +924,7 @@ + */ + + if (!ramdisk_execute_command) +- ramdisk_execute_command = "/init"; ++ ramdisk_execute_command = "/sbin/init"; + + if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) { + ramdisk_execute_command = NULL; diff --git a/target/linux/patches/3.15-rc8/tcp-fastopen.patch b/target/linux/patches/3.15-rc8/tcp-fastopen.patch new file mode 100644 index 000000000..fc1d076ac --- /dev/null +++ b/target/linux/patches/3.15-rc8/tcp-fastopen.patch @@ -0,0 +1,2082 @@ +diff -Nur linux-3.15-rc7.orig/include/linux/tcp.h linux-3.15-rc7/include/linux/tcp.h +--- linux-3.15-rc7.orig/include/linux/tcp.h 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/include/linux/tcp.h 2014-05-31 22:42:49.024605293 +0200 +@@ -359,6 +359,9 @@ + return (struct tcp_timewait_sock *)sk; + } + ++extern void tcp_sock_destruct(struct sock *sk); ++ ++#ifdef CONFIG_TCP_FASTOPEN + static inline bool tcp_passive_fastopen(const struct sock *sk) + { + return (sk->sk_state == TCP_SYN_RECV && +@@ -370,8 +373,6 @@ + return foc->len != -1; + } + +-extern void tcp_sock_destruct(struct sock *sk); +- + static inline int fastopen_init_queue(struct sock *sk, int backlog) + { + struct request_sock_queue *queue = +@@ -391,4 +392,13 @@ + return 0; + } + ++#else ++static inline bool tcp_passive_fastopen(const struct sock *sk) ++{ return false; } ++static inline bool fastopen_cookie_present(struct tcp_fastopen_cookie *foc) ++{ return false; } ++static inline int fastopen_init_queue(struct sock *sk, int backlog) ++{ return 0; } ++#endif ++ + #endif /* _LINUX_TCP_H */ +diff -Nur linux-3.15-rc7.orig/include/net/request_sock.h linux-3.15-rc7/include/net/request_sock.h +--- linux-3.15-rc7.orig/include/net/request_sock.h 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/include/net/request_sock.h 2014-05-31 22:42:49.024605293 +0200 +@@ -168,8 +168,13 @@ + + void __reqsk_queue_destroy(struct request_sock_queue *queue); + void reqsk_queue_destroy(struct request_sock_queue *queue); ++#ifdef CONFIG_TCP_FASTOPEN + void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, + bool reset); ++#else ++static inline void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, ++ bool reset) {} ++#endif + + static inline struct request_sock * + reqsk_queue_yank_acceptq(struct request_sock_queue *queue) +diff -Nur linux-3.15-rc7.orig/include/net/tcp.h linux-3.15-rc7/include/net/tcp.h +--- linux-3.15-rc7.orig/include/net/tcp.h 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/include/net/tcp.h 2014-05-31 22:42:49.028605326 +0200 +@@ -251,7 +251,11 @@ + extern int sysctl_tcp_retries2; + extern int sysctl_tcp_orphan_retries; + extern int sysctl_tcp_syncookies; ++#ifdef CONFIG_TCP_FASTOPEN + extern int sysctl_tcp_fastopen; ++#else ++#define sysctl_tcp_fastopen 0 ++#endif + extern int sysctl_tcp_retrans_collapse; + extern int sysctl_tcp_stdurg; + extern int sysctl_tcp_rfc1337; +@@ -1308,7 +1312,12 @@ + size_t size; + int copied; /* queued in tcp_connect() */ + }; ++ ++#ifdef CONFIG_TCP_FASTOPEN + void tcp_free_fastopen_req(struct tcp_sock *tp); ++#else ++static inline void tcp_free_fastopen_req(struct tcp_sock *tp) {} ++#endif + + extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; + int tcp_fastopen_reset_cipher(void *key, unsigned int len); +diff -Nur linux-3.15-rc7.orig/include/net/tcp.h.orig linux-3.15-rc7/include/net/tcp.h.orig +--- linux-3.15-rc7.orig/include/net/tcp.h.orig 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc7/include/net/tcp.h.orig 2014-05-26 01:06:00.000000000 +0200 +@@ -0,0 +1,1600 @@ ++/* ++ * INET An implementation of the TCP/IP protocol suite for the LINUX ++ * operating system. INET is implemented using the BSD Socket ++ * interface as the means of communication with the user level. ++ * ++ * Definitions for the TCP module. ++ * ++ * Version: @(#)tcp.h 1.0.5 05/23/93 ++ * ++ * Authors: Ross Biro ++ * Fred N. van Kempen, ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ */ ++#ifndef _TCP_H ++#define _TCP_H ++ ++#define FASTRETRANS_DEBUG 1 ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++ ++extern struct inet_hashinfo tcp_hashinfo; ++ ++extern struct percpu_counter tcp_orphan_count; ++void tcp_time_wait(struct sock *sk, int state, int timeo); ++ ++#define MAX_TCP_HEADER (128 + MAX_HEADER) ++#define MAX_TCP_OPTION_SPACE 40 ++ ++/* ++ * Never offer a window over 32767 without using window scaling. Some ++ * poor stacks do signed 16bit maths! ++ */ ++#define MAX_TCP_WINDOW 32767U ++ ++/* Minimal accepted MSS. It is (60+60+8) - (20+20). */ ++#define TCP_MIN_MSS 88U ++ ++/* The least MTU to use for probing */ ++#define TCP_BASE_MSS 512 ++ ++/* After receiving this amount of duplicate ACKs fast retransmit starts. */ ++#define TCP_FASTRETRANS_THRESH 3 ++ ++/* Maximal reordering. */ ++#define TCP_MAX_REORDERING 127 ++ ++/* Maximal number of ACKs sent quickly to accelerate slow-start. */ ++#define TCP_MAX_QUICKACKS 16U ++ ++/* urg_data states */ ++#define TCP_URG_VALID 0x0100 ++#define TCP_URG_NOTYET 0x0200 ++#define TCP_URG_READ 0x0400 ++ ++#define TCP_RETR1 3 /* ++ * This is how many retries it does before it ++ * tries to figure out if the gateway is ++ * down. Minimal RFC value is 3; it corresponds ++ * to ~3sec-8min depending on RTO. ++ */ ++ ++#define TCP_RETR2 15 /* ++ * This should take at least ++ * 90 minutes to time out. ++ * RFC1122 says that the limit is 100 sec. ++ * 15 is ~13-30min depending on RTO. ++ */ ++ ++#define TCP_SYN_RETRIES 6 /* This is how many retries are done ++ * when active opening a connection. ++ * RFC1122 says the minimum retry MUST ++ * be at least 180secs. Nevertheless ++ * this value is corresponding to ++ * 63secs of retransmission with the ++ * current initial RTO. ++ */ ++ ++#define TCP_SYNACK_RETRIES 5 /* This is how may retries are done ++ * when passive opening a connection. ++ * This is corresponding to 31secs of ++ * retransmission with the current ++ * initial RTO. ++ */ ++ ++#define TCP_TIMEWAIT_LEN (60*HZ) /* how long to wait to destroy TIME-WAIT ++ * state, about 60 seconds */ ++#define TCP_FIN_TIMEOUT TCP_TIMEWAIT_LEN ++ /* BSD style FIN_WAIT2 deadlock breaker. ++ * It used to be 3min, new value is 60sec, ++ * to combine FIN-WAIT-2 timeout with ++ * TIME-WAIT timer. ++ */ ++ ++#define TCP_DELACK_MAX ((unsigned)(HZ/5)) /* maximal time to delay before sending an ACK */ ++#if HZ >= 100 ++#define TCP_DELACK_MIN ((unsigned)(HZ/25)) /* minimal time to delay before sending an ACK */ ++#define TCP_ATO_MIN ((unsigned)(HZ/25)) ++#else ++#define TCP_DELACK_MIN 4U ++#define TCP_ATO_MIN 4U ++#endif ++#define TCP_RTO_MAX ((unsigned)(120*HZ)) ++#define TCP_RTO_MIN ((unsigned)(HZ/5)) ++#define TCP_TIMEOUT_INIT ((unsigned)(1*HZ)) /* RFC6298 2.1 initial RTO value */ ++#define TCP_TIMEOUT_FALLBACK ((unsigned)(3*HZ)) /* RFC 1122 initial RTO value, now ++ * used as a fallback RTO for the ++ * initial data transmission if no ++ * valid RTT sample has been acquired, ++ * most likely due to retrans in 3WHS. ++ */ ++ ++#define TCP_RESOURCE_PROBE_INTERVAL ((unsigned)(HZ/2U)) /* Maximal interval between probes ++ * for local resources. ++ */ ++ ++#define TCP_KEEPALIVE_TIME (120*60*HZ) /* two hours */ ++#define TCP_KEEPALIVE_PROBES 9 /* Max of 9 keepalive probes */ ++#define TCP_KEEPALIVE_INTVL (75*HZ) ++ ++#define MAX_TCP_KEEPIDLE 32767 ++#define MAX_TCP_KEEPINTVL 32767 ++#define MAX_TCP_KEEPCNT 127 ++#define MAX_TCP_SYNCNT 127 ++ ++#define TCP_SYNQ_INTERVAL (HZ/5) /* Period of SYNACK timer */ ++ ++#define TCP_PAWS_24DAYS (60 * 60 * 24 * 24) ++#define TCP_PAWS_MSL 60 /* Per-host timestamps are invalidated ++ * after this time. It should be equal ++ * (or greater than) TCP_TIMEWAIT_LEN ++ * to provide reliability equal to one ++ * provided by timewait state. ++ */ ++#define TCP_PAWS_WINDOW 1 /* Replay window for per-host ++ * timestamps. It must be less than ++ * minimal timewait lifetime. ++ */ ++/* ++ * TCP option ++ */ ++ ++#define TCPOPT_NOP 1 /* Padding */ ++#define TCPOPT_EOL 0 /* End of options */ ++#define TCPOPT_MSS 2 /* Segment size negotiating */ ++#define TCPOPT_WINDOW 3 /* Window scaling */ ++#define TCPOPT_SACK_PERM 4 /* SACK Permitted */ ++#define TCPOPT_SACK 5 /* SACK Block */ ++#define TCPOPT_TIMESTAMP 8 /* Better RTT estimations/PAWS */ ++#define TCPOPT_MD5SIG 19 /* MD5 Signature (RFC2385) */ ++#define TCPOPT_EXP 254 /* Experimental */ ++/* Magic number to be after the option value for sharing TCP ++ * experimental options. See draft-ietf-tcpm-experimental-options-00.txt ++ */ ++#define TCPOPT_FASTOPEN_MAGIC 0xF989 ++ ++/* ++ * TCP option lengths ++ */ ++ ++#define TCPOLEN_MSS 4 ++#define TCPOLEN_WINDOW 3 ++#define TCPOLEN_SACK_PERM 2 ++#define TCPOLEN_TIMESTAMP 10 ++#define TCPOLEN_MD5SIG 18 ++#define TCPOLEN_EXP_FASTOPEN_BASE 4 ++ ++/* But this is what stacks really send out. */ ++#define TCPOLEN_TSTAMP_ALIGNED 12 ++#define TCPOLEN_WSCALE_ALIGNED 4 ++#define TCPOLEN_SACKPERM_ALIGNED 4 ++#define TCPOLEN_SACK_BASE 2 ++#define TCPOLEN_SACK_BASE_ALIGNED 4 ++#define TCPOLEN_SACK_PERBLOCK 8 ++#define TCPOLEN_MD5SIG_ALIGNED 20 ++#define TCPOLEN_MSS_ALIGNED 4 ++ ++/* Flags in tp->nonagle */ ++#define TCP_NAGLE_OFF 1 /* Nagle's algo is disabled */ ++#define TCP_NAGLE_CORK 2 /* Socket is corked */ ++#define TCP_NAGLE_PUSH 4 /* Cork is overridden for already queued data */ ++ ++/* TCP thin-stream limits */ ++#define TCP_THIN_LINEAR_RETRIES 6 /* After 6 linear retries, do exp. backoff */ ++ ++/* TCP initial congestion window as per draft-hkchu-tcpm-initcwnd-01 */ ++#define TCP_INIT_CWND 10 ++ ++/* Bit Flags for sysctl_tcp_fastopen */ ++#define TFO_CLIENT_ENABLE 1 ++#define TFO_SERVER_ENABLE 2 ++#define TFO_CLIENT_NO_COOKIE 4 /* Data in SYN w/o cookie option */ ++ ++/* Process SYN data but skip cookie validation */ ++#define TFO_SERVER_COOKIE_NOT_CHKED 0x100 ++/* Accept SYN data w/o any cookie option */ ++#define TFO_SERVER_COOKIE_NOT_REQD 0x200 ++ ++/* Force enable TFO on all listeners, i.e., not requiring the ++ * TCP_FASTOPEN socket option. SOCKOPT1/2 determine how to set max_qlen. ++ */ ++#define TFO_SERVER_WO_SOCKOPT1 0x400 ++#define TFO_SERVER_WO_SOCKOPT2 0x800 ++/* Always create TFO child sockets on a TFO listener even when ++ * cookie/data not present. (For testing purpose!) ++ */ ++#define TFO_SERVER_ALWAYS 0x1000 ++ ++extern struct inet_timewait_death_row tcp_death_row; ++ ++/* sysctl variables for tcp */ ++extern int sysctl_tcp_timestamps; ++extern int sysctl_tcp_window_scaling; ++extern int sysctl_tcp_sack; ++extern int sysctl_tcp_fin_timeout; ++extern int sysctl_tcp_keepalive_time; ++extern int sysctl_tcp_keepalive_probes; ++extern int sysctl_tcp_keepalive_intvl; ++extern int sysctl_tcp_syn_retries; ++extern int sysctl_tcp_synack_retries; ++extern int sysctl_tcp_retries1; ++extern int sysctl_tcp_retries2; ++extern int sysctl_tcp_orphan_retries; ++extern int sysctl_tcp_syncookies; ++extern int sysctl_tcp_fastopen; ++extern int sysctl_tcp_retrans_collapse; ++extern int sysctl_tcp_stdurg; ++extern int sysctl_tcp_rfc1337; ++extern int sysctl_tcp_abort_on_overflow; ++extern int sysctl_tcp_max_orphans; ++extern int sysctl_tcp_fack; ++extern int sysctl_tcp_reordering; ++extern int sysctl_tcp_dsack; ++extern long sysctl_tcp_mem[3]; ++extern int sysctl_tcp_wmem[3]; ++extern int sysctl_tcp_rmem[3]; ++extern int sysctl_tcp_app_win; ++extern int sysctl_tcp_adv_win_scale; ++extern int sysctl_tcp_tw_reuse; ++extern int sysctl_tcp_frto; ++extern int sysctl_tcp_low_latency; ++extern int sysctl_tcp_dma_copybreak; ++extern int sysctl_tcp_nometrics_save; ++extern int sysctl_tcp_moderate_rcvbuf; ++extern int sysctl_tcp_tso_win_divisor; ++extern int sysctl_tcp_mtu_probing; ++extern int sysctl_tcp_base_mss; ++extern int sysctl_tcp_workaround_signed_windows; ++extern int sysctl_tcp_slow_start_after_idle; ++extern int sysctl_tcp_thin_linear_timeouts; ++extern int sysctl_tcp_thin_dupack; ++extern int sysctl_tcp_early_retrans; ++extern int sysctl_tcp_limit_output_bytes; ++extern int sysctl_tcp_challenge_ack_limit; ++extern unsigned int sysctl_tcp_notsent_lowat; ++extern int sysctl_tcp_min_tso_segs; ++extern int sysctl_tcp_autocorking; ++ ++extern atomic_long_t tcp_memory_allocated; ++extern struct percpu_counter tcp_sockets_allocated; ++extern int tcp_memory_pressure; ++ ++/* ++ * The next routines deal with comparing 32 bit unsigned ints ++ * and worry about wraparound (automatic with unsigned arithmetic). ++ */ ++ ++static inline bool before(__u32 seq1, __u32 seq2) ++{ ++ return (__s32)(seq1-seq2) < 0; ++} ++#define after(seq2, seq1) before(seq1, seq2) ++ ++/* is s2<=s1<=s3 ? */ ++static inline bool between(__u32 seq1, __u32 seq2, __u32 seq3) ++{ ++ return seq3 - seq2 >= seq1 - seq2; ++} ++ ++static inline bool tcp_out_of_memory(struct sock *sk) ++{ ++ if (sk->sk_wmem_queued > SOCK_MIN_SNDBUF && ++ sk_memory_allocated(sk) > sk_prot_mem_limits(sk, 2)) ++ return true; ++ return false; ++} ++ ++static inline bool tcp_too_many_orphans(struct sock *sk, int shift) ++{ ++ struct percpu_counter *ocp = sk->sk_prot->orphan_count; ++ int orphans = percpu_counter_read_positive(ocp); ++ ++ if (orphans << shift > sysctl_tcp_max_orphans) { ++ orphans = percpu_counter_sum_positive(ocp); ++ if (orphans << shift > sysctl_tcp_max_orphans) ++ return true; ++ } ++ return false; ++} ++ ++bool tcp_check_oom(struct sock *sk, int shift); ++ ++/* syncookies: remember time of last synqueue overflow */ ++static inline void tcp_synq_overflow(struct sock *sk) ++{ ++ tcp_sk(sk)->rx_opt.ts_recent_stamp = jiffies; ++} ++ ++/* syncookies: no recent synqueue overflow on this listening socket? */ ++static inline bool tcp_synq_no_recent_overflow(const struct sock *sk) ++{ ++ unsigned long last_overflow = tcp_sk(sk)->rx_opt.ts_recent_stamp; ++ return time_after(jiffies, last_overflow + TCP_TIMEOUT_FALLBACK); ++} ++ ++extern struct proto tcp_prot; ++ ++#define TCP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.tcp_statistics, field) ++#define TCP_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.tcp_statistics, field) ++#define TCP_DEC_STATS(net, field) SNMP_DEC_STATS((net)->mib.tcp_statistics, field) ++#define TCP_ADD_STATS_USER(net, field, val) SNMP_ADD_STATS_USER((net)->mib.tcp_statistics, field, val) ++#define TCP_ADD_STATS(net, field, val) SNMP_ADD_STATS((net)->mib.tcp_statistics, field, val) ++ ++void tcp_tasklet_init(void); ++ ++void tcp_v4_err(struct sk_buff *skb, u32); ++ ++void tcp_shutdown(struct sock *sk, int how); ++ ++void tcp_v4_early_demux(struct sk_buff *skb); ++int tcp_v4_rcv(struct sk_buff *skb); ++ ++int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw); ++int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, ++ size_t size); ++int tcp_sendpage(struct sock *sk, struct page *page, int offset, size_t size, ++ int flags); ++void tcp_release_cb(struct sock *sk); ++void tcp_wfree(struct sk_buff *skb); ++void tcp_write_timer_handler(struct sock *sk); ++void tcp_delack_timer_handler(struct sock *sk); ++int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg); ++int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, ++ const struct tcphdr *th, unsigned int len); ++void tcp_rcv_established(struct sock *sk, struct sk_buff *skb, ++ const struct tcphdr *th, unsigned int len); ++void tcp_rcv_space_adjust(struct sock *sk); ++void tcp_cleanup_rbuf(struct sock *sk, int copied); ++int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp); ++void tcp_twsk_destructor(struct sock *sk); ++ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos, ++ struct pipe_inode_info *pipe, size_t len, ++ unsigned int flags); ++ ++static inline void tcp_dec_quickack_mode(struct sock *sk, ++ const unsigned int pkts) ++{ ++ struct inet_connection_sock *icsk = inet_csk(sk); ++ ++ if (icsk->icsk_ack.quick) { ++ if (pkts >= icsk->icsk_ack.quick) { ++ icsk->icsk_ack.quick = 0; ++ /* Leaving quickack mode we deflate ATO. */ ++ icsk->icsk_ack.ato = TCP_ATO_MIN; ++ } else ++ icsk->icsk_ack.quick -= pkts; ++ } ++} ++ ++#define TCP_ECN_OK 1 ++#define TCP_ECN_QUEUE_CWR 2 ++#define TCP_ECN_DEMAND_CWR 4 ++#define TCP_ECN_SEEN 8 ++ ++enum tcp_tw_status { ++ TCP_TW_SUCCESS = 0, ++ TCP_TW_RST = 1, ++ TCP_TW_ACK = 2, ++ TCP_TW_SYN = 3 ++}; ++ ++ ++enum tcp_tw_status tcp_timewait_state_process(struct inet_timewait_sock *tw, ++ struct sk_buff *skb, ++ const struct tcphdr *th); ++struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb, ++ struct request_sock *req, struct request_sock **prev, ++ bool fastopen); ++int tcp_child_process(struct sock *parent, struct sock *child, ++ struct sk_buff *skb); ++void tcp_enter_loss(struct sock *sk, int how); ++void tcp_clear_retrans(struct tcp_sock *tp); ++void tcp_update_metrics(struct sock *sk); ++void tcp_init_metrics(struct sock *sk); ++void tcp_metrics_init(void); ++bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst, ++ bool paws_check); ++bool tcp_remember_stamp(struct sock *sk); ++bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw); ++void tcp_fetch_timewait_stamp(struct sock *sk, struct dst_entry *dst); ++void tcp_disable_fack(struct tcp_sock *tp); ++void tcp_close(struct sock *sk, long timeout); ++void tcp_init_sock(struct sock *sk); ++unsigned int tcp_poll(struct file *file, struct socket *sock, ++ struct poll_table_struct *wait); ++int tcp_getsockopt(struct sock *sk, int level, int optname, ++ char __user *optval, int __user *optlen); ++int tcp_setsockopt(struct sock *sk, int level, int optname, ++ char __user *optval, unsigned int optlen); ++int compat_tcp_getsockopt(struct sock *sk, int level, int optname, ++ char __user *optval, int __user *optlen); ++int compat_tcp_setsockopt(struct sock *sk, int level, int optname, ++ char __user *optval, unsigned int optlen); ++void tcp_set_keepalive(struct sock *sk, int val); ++void tcp_syn_ack_timeout(struct sock *sk, struct request_sock *req); ++int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, ++ size_t len, int nonblock, int flags, int *addr_len); ++void tcp_parse_options(const struct sk_buff *skb, ++ struct tcp_options_received *opt_rx, ++ int estab, struct tcp_fastopen_cookie *foc); ++const u8 *tcp_parse_md5sig_option(const struct tcphdr *th); ++ ++/* ++ * TCP v4 functions exported for the inet6 API ++ */ ++ ++void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb); ++int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb); ++struct sock *tcp_create_openreq_child(struct sock *sk, ++ struct request_sock *req, ++ struct sk_buff *skb); ++struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, ++ struct request_sock *req, ++ struct dst_entry *dst); ++int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb); ++int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); ++int tcp_connect(struct sock *sk); ++struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, ++ struct request_sock *req, ++ struct tcp_fastopen_cookie *foc); ++int tcp_disconnect(struct sock *sk, int flags); ++ ++void tcp_finish_connect(struct sock *sk, struct sk_buff *skb); ++int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size); ++void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb); ++ ++/* From syncookies.c */ ++int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th, ++ u32 cookie); ++struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, ++ struct ip_options *opt); ++#ifdef CONFIG_SYN_COOKIES ++ ++/* Syncookies use a monotonic timer which increments every 60 seconds. ++ * This counter is used both as a hash input and partially encoded into ++ * the cookie value. A cookie is only validated further if the delta ++ * between the current counter value and the encoded one is less than this, ++ * i.e. a sent cookie is valid only at most for 2*60 seconds (or less if ++ * the counter advances immediately after a cookie is generated). ++ */ ++#define MAX_SYNCOOKIE_AGE 2 ++ ++static inline u32 tcp_cookie_time(void) ++{ ++ u64 val = get_jiffies_64(); ++ ++ do_div(val, 60 * HZ); ++ return val; ++} ++ ++u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th, ++ u16 *mssp); ++__u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mss); ++#else ++static inline __u32 cookie_v4_init_sequence(struct sock *sk, ++ struct sk_buff *skb, ++ __u16 *mss) ++{ ++ return 0; ++} ++#endif ++ ++__u32 cookie_init_timestamp(struct request_sock *req); ++bool cookie_check_timestamp(struct tcp_options_received *opt, struct net *net, ++ bool *ecn_ok); ++ ++/* From net/ipv6/syncookies.c */ ++int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th, ++ u32 cookie); ++struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb); ++#ifdef CONFIG_SYN_COOKIES ++u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph, ++ const struct tcphdr *th, u16 *mssp); ++__u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb, ++ __u16 *mss); ++#else ++static inline __u32 cookie_v6_init_sequence(struct sock *sk, ++ struct sk_buff *skb, ++ __u16 *mss) ++{ ++ return 0; ++} ++#endif ++/* tcp_output.c */ ++ ++void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss, ++ int nonagle); ++bool tcp_may_send_now(struct sock *sk); ++int __tcp_retransmit_skb(struct sock *, struct sk_buff *); ++int tcp_retransmit_skb(struct sock *, struct sk_buff *); ++void tcp_retransmit_timer(struct sock *sk); ++void tcp_xmit_retransmit_queue(struct sock *); ++void tcp_simple_retransmit(struct sock *); ++int tcp_trim_head(struct sock *, struct sk_buff *, u32); ++int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int); ++ ++void tcp_send_probe0(struct sock *); ++void tcp_send_partial(struct sock *); ++int tcp_write_wakeup(struct sock *); ++void tcp_send_fin(struct sock *sk); ++void tcp_send_active_reset(struct sock *sk, gfp_t priority); ++int tcp_send_synack(struct sock *); ++bool tcp_syn_flood_action(struct sock *sk, const struct sk_buff *skb, ++ const char *proto); ++void tcp_push_one(struct sock *, unsigned int mss_now); ++void tcp_send_ack(struct sock *sk); ++void tcp_send_delayed_ack(struct sock *sk); ++void tcp_send_loss_probe(struct sock *sk); ++bool tcp_schedule_loss_probe(struct sock *sk); ++ ++/* tcp_input.c */ ++void tcp_cwnd_application_limited(struct sock *sk); ++void tcp_resume_early_retransmit(struct sock *sk); ++void tcp_rearm_rto(struct sock *sk); ++void tcp_reset(struct sock *sk); ++ ++/* tcp_timer.c */ ++void tcp_init_xmit_timers(struct sock *); ++static inline void tcp_clear_xmit_timers(struct sock *sk) ++{ ++ inet_csk_clear_xmit_timers(sk); ++} ++ ++unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu); ++unsigned int tcp_current_mss(struct sock *sk); ++ ++/* Bound MSS / TSO packet size with the half of the window */ ++static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize) ++{ ++ int cutoff; ++ ++ /* When peer uses tiny windows, there is no use in packetizing ++ * to sub-MSS pieces for the sake of SWS or making sure there ++ * are enough packets in the pipe for fast recovery. ++ * ++ * On the other hand, for extremely large MSS devices, handling ++ * smaller than MSS windows in this way does make sense. ++ */ ++ if (tp->max_window >= 512) ++ cutoff = (tp->max_window >> 1); ++ else ++ cutoff = tp->max_window; ++ ++ if (cutoff && pktsize > cutoff) ++ return max_t(int, cutoff, 68U - tp->tcp_header_len); ++ else ++ return pktsize; ++} ++ ++/* tcp.c */ ++void tcp_get_info(const struct sock *, struct tcp_info *); ++ ++/* Read 'sendfile()'-style from a TCP socket */ ++typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *, ++ unsigned int, size_t); ++int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, ++ sk_read_actor_t recv_actor); ++ ++void tcp_initialize_rcv_mss(struct sock *sk); ++ ++int tcp_mtu_to_mss(struct sock *sk, int pmtu); ++int tcp_mss_to_mtu(struct sock *sk, int mss); ++void tcp_mtup_init(struct sock *sk); ++void tcp_init_buffer_space(struct sock *sk); ++ ++static inline void tcp_bound_rto(const struct sock *sk) ++{ ++ if (inet_csk(sk)->icsk_rto > TCP_RTO_MAX) ++ inet_csk(sk)->icsk_rto = TCP_RTO_MAX; ++} ++ ++static inline u32 __tcp_set_rto(const struct tcp_sock *tp) ++{ ++ return usecs_to_jiffies((tp->srtt_us >> 3) + tp->rttvar_us); ++} ++ ++static inline void __tcp_fast_path_on(struct tcp_sock *tp, u32 snd_wnd) ++{ ++ tp->pred_flags = htonl((tp->tcp_header_len << 26) | ++ ntohl(TCP_FLAG_ACK) | ++ snd_wnd); ++} ++ ++static inline void tcp_fast_path_on(struct tcp_sock *tp) ++{ ++ __tcp_fast_path_on(tp, tp->snd_wnd >> tp->rx_opt.snd_wscale); ++} ++ ++static inline void tcp_fast_path_check(struct sock *sk) ++{ ++ struct tcp_sock *tp = tcp_sk(sk); ++ ++ if (skb_queue_empty(&tp->out_of_order_queue) && ++ tp->rcv_wnd && ++ atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf && ++ !tp->urg_data) ++ tcp_fast_path_on(tp); ++} ++ ++/* Compute the actual rto_min value */ ++static inline u32 tcp_rto_min(struct sock *sk) ++{ ++ const struct dst_entry *dst = __sk_dst_get(sk); ++ u32 rto_min = TCP_RTO_MIN; ++ ++ if (dst && dst_metric_locked(dst, RTAX_RTO_MIN)) ++ rto_min = dst_metric_rtt(dst, RTAX_RTO_MIN); ++ return rto_min; ++} ++ ++static inline u32 tcp_rto_min_us(struct sock *sk) ++{ ++ return jiffies_to_usecs(tcp_rto_min(sk)); ++} ++ ++/* Compute the actual receive window we are currently advertising. ++ * Rcv_nxt can be after the window if our peer push more data ++ * than the offered window. ++ */ ++static inline u32 tcp_receive_window(const struct tcp_sock *tp) ++{ ++ s32 win = tp->rcv_wup + tp->rcv_wnd - tp->rcv_nxt; ++ ++ if (win < 0) ++ win = 0; ++ return (u32) win; ++} ++ ++/* Choose a new window, without checks for shrinking, and without ++ * scaling applied to the result. The caller does these things ++ * if necessary. This is a "raw" window selection. ++ */ ++u32 __tcp_select_window(struct sock *sk); ++ ++void tcp_send_window_probe(struct sock *sk); ++ ++/* TCP timestamps are only 32-bits, this causes a slight ++ * complication on 64-bit systems since we store a snapshot ++ * of jiffies in the buffer control blocks below. We decided ++ * to use only the low 32-bits of jiffies and hide the ugly ++ * casts with the following macro. ++ */ ++#define tcp_time_stamp ((__u32)(jiffies)) ++ ++#define tcp_flag_byte(th) (((u_int8_t *)th)[13]) ++ ++#define TCPHDR_FIN 0x01 ++#define TCPHDR_SYN 0x02 ++#define TCPHDR_RST 0x04 ++#define TCPHDR_PSH 0x08 ++#define TCPHDR_ACK 0x10 ++#define TCPHDR_URG 0x20 ++#define TCPHDR_ECE 0x40 ++#define TCPHDR_CWR 0x80 ++ ++/* This is what the send packet queuing engine uses to pass ++ * TCP per-packet control information to the transmission code. ++ * We also store the host-order sequence numbers in here too. ++ * This is 44 bytes if IPV6 is enabled. ++ * If this grows please adjust skbuff.h:skbuff->cb[xxx] size appropriately. ++ */ ++struct tcp_skb_cb { ++ union { ++ struct inet_skb_parm h4; ++#if IS_ENABLED(CONFIG_IPV6) ++ struct inet6_skb_parm h6; ++#endif ++ } header; /* For incoming frames */ ++ __u32 seq; /* Starting sequence number */ ++ __u32 end_seq; /* SEQ + FIN + SYN + datalen */ ++ __u32 when; /* used to compute rtt's */ ++ __u8 tcp_flags; /* TCP header flags. (tcp[13]) */ ++ ++ __u8 sacked; /* State flags for SACK/FACK. */ ++#define TCPCB_SACKED_ACKED 0x01 /* SKB ACK'd by a SACK block */ ++#define TCPCB_SACKED_RETRANS 0x02 /* SKB retransmitted */ ++#define TCPCB_LOST 0x04 /* SKB is lost */ ++#define TCPCB_TAGBITS 0x07 /* All tag bits */ ++#define TCPCB_EVER_RETRANS 0x80 /* Ever retransmitted frame */ ++#define TCPCB_RETRANS (TCPCB_SACKED_RETRANS|TCPCB_EVER_RETRANS) ++ ++ __u8 ip_dsfield; /* IPv4 tos or IPv6 dsfield */ ++ /* 1 byte hole */ ++ __u32 ack_seq; /* Sequence number ACK'd */ ++}; ++ ++#define TCP_SKB_CB(__skb) ((struct tcp_skb_cb *)&((__skb)->cb[0])) ++ ++/* RFC3168 : 6.1.1 SYN packets must not have ECT/ECN bits set ++ * ++ * If we receive a SYN packet with these bits set, it means a network is ++ * playing bad games with TOS bits. In order to avoid possible false congestion ++ * notifications, we disable TCP ECN negociation. ++ */ ++static inline void ++TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb, ++ struct net *net) ++{ ++ const struct tcphdr *th = tcp_hdr(skb); ++ ++ if (net->ipv4.sysctl_tcp_ecn && th->ece && th->cwr && ++ INET_ECN_is_not_ect(TCP_SKB_CB(skb)->ip_dsfield)) ++ inet_rsk(req)->ecn_ok = 1; ++} ++ ++/* Due to TSO, an SKB can be composed of multiple actual ++ * packets. To keep these tracked properly, we use this. ++ */ ++static inline int tcp_skb_pcount(const struct sk_buff *skb) ++{ ++ return skb_shinfo(skb)->gso_segs; ++} ++ ++/* This is valid iff tcp_skb_pcount() > 1. */ ++static inline int tcp_skb_mss(const struct sk_buff *skb) ++{ ++ return skb_shinfo(skb)->gso_size; ++} ++ ++/* Events passed to congestion control interface */ ++enum tcp_ca_event { ++ CA_EVENT_TX_START, /* first transmit when no packets in flight */ ++ CA_EVENT_CWND_RESTART, /* congestion window restart */ ++ CA_EVENT_COMPLETE_CWR, /* end of congestion recovery */ ++ CA_EVENT_LOSS, /* loss timeout */ ++ CA_EVENT_FAST_ACK, /* in sequence ack */ ++ CA_EVENT_SLOW_ACK, /* other ack */ ++}; ++ ++/* ++ * Interface for adding new TCP congestion control handlers ++ */ ++#define TCP_CA_NAME_MAX 16 ++#define TCP_CA_MAX 128 ++#define TCP_CA_BUF_MAX (TCP_CA_NAME_MAX*TCP_CA_MAX) ++ ++#define TCP_CONG_NON_RESTRICTED 0x1 ++ ++struct tcp_congestion_ops { ++ struct list_head list; ++ unsigned long flags; ++ ++ /* initialize private data (optional) */ ++ void (*init)(struct sock *sk); ++ /* cleanup private data (optional) */ ++ void (*release)(struct sock *sk); ++ ++ /* return slow start threshold (required) */ ++ u32 (*ssthresh)(struct sock *sk); ++ /* do new cwnd calculation (required) */ ++ void (*cong_avoid)(struct sock *sk, u32 ack, u32 acked, u32 in_flight); ++ /* call before changing ca_state (optional) */ ++ void (*set_state)(struct sock *sk, u8 new_state); ++ /* call when cwnd event occurs (optional) */ ++ void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev); ++ /* new value of cwnd after loss (optional) */ ++ u32 (*undo_cwnd)(struct sock *sk); ++ /* hook for packet ack accounting (optional) */ ++ void (*pkts_acked)(struct sock *sk, u32 num_acked, s32 rtt_us); ++ /* get info for inet_diag (optional) */ ++ void (*get_info)(struct sock *sk, u32 ext, struct sk_buff *skb); ++ ++ char name[TCP_CA_NAME_MAX]; ++ struct module *owner; ++}; ++ ++int tcp_register_congestion_control(struct tcp_congestion_ops *type); ++void tcp_unregister_congestion_control(struct tcp_congestion_ops *type); ++ ++void tcp_init_congestion_control(struct sock *sk); ++void tcp_cleanup_congestion_control(struct sock *sk); ++int tcp_set_default_congestion_control(const char *name); ++void tcp_get_default_congestion_control(char *name); ++void tcp_get_available_congestion_control(char *buf, size_t len); ++void tcp_get_allowed_congestion_control(char *buf, size_t len); ++int tcp_set_allowed_congestion_control(char *allowed); ++int tcp_set_congestion_control(struct sock *sk, const char *name); ++int tcp_slow_start(struct tcp_sock *tp, u32 acked); ++void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w); ++ ++extern struct tcp_congestion_ops tcp_init_congestion_ops; ++u32 tcp_reno_ssthresh(struct sock *sk); ++void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight); ++extern struct tcp_congestion_ops tcp_reno; ++ ++static inline void tcp_set_ca_state(struct sock *sk, const u8 ca_state) ++{ ++ struct inet_connection_sock *icsk = inet_csk(sk); ++ ++ if (icsk->icsk_ca_ops->set_state) ++ icsk->icsk_ca_ops->set_state(sk, ca_state); ++ icsk->icsk_ca_state = ca_state; ++} ++ ++static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event) ++{ ++ const struct inet_connection_sock *icsk = inet_csk(sk); ++ ++ if (icsk->icsk_ca_ops->cwnd_event) ++ icsk->icsk_ca_ops->cwnd_event(sk, event); ++} ++ ++/* These functions determine how the current flow behaves in respect of SACK ++ * handling. SACK is negotiated with the peer, and therefore it can vary ++ * between different flows. ++ * ++ * tcp_is_sack - SACK enabled ++ * tcp_is_reno - No SACK ++ * tcp_is_fack - FACK enabled, implies SACK enabled ++ */ ++static inline int tcp_is_sack(const struct tcp_sock *tp) ++{ ++ return tp->rx_opt.sack_ok; ++} ++ ++static inline bool tcp_is_reno(const struct tcp_sock *tp) ++{ ++ return !tcp_is_sack(tp); ++} ++ ++static inline bool tcp_is_fack(const struct tcp_sock *tp) ++{ ++ return tp->rx_opt.sack_ok & TCP_FACK_ENABLED; ++} ++ ++static inline void tcp_enable_fack(struct tcp_sock *tp) ++{ ++ tp->rx_opt.sack_ok |= TCP_FACK_ENABLED; ++} ++ ++/* TCP early-retransmit (ER) is similar to but more conservative than ++ * the thin-dupack feature. Enable ER only if thin-dupack is disabled. ++ */ ++static inline void tcp_enable_early_retrans(struct tcp_sock *tp) ++{ ++ tp->do_early_retrans = sysctl_tcp_early_retrans && ++ sysctl_tcp_early_retrans < 4 && !sysctl_tcp_thin_dupack && ++ sysctl_tcp_reordering == 3; ++} ++ ++static inline void tcp_disable_early_retrans(struct tcp_sock *tp) ++{ ++ tp->do_early_retrans = 0; ++} ++ ++static inline unsigned int tcp_left_out(const struct tcp_sock *tp) ++{ ++ return tp->sacked_out + tp->lost_out; ++} ++ ++/* This determines how many packets are "in the network" to the best ++ * of our knowledge. In many cases it is conservative, but where ++ * detailed information is available from the receiver (via SACK ++ * blocks etc.) we can make more aggressive calculations. ++ * ++ * Use this for decisions involving congestion control, use just ++ * tp->packets_out to determine if the send queue is empty or not. ++ * ++ * Read this equation as: ++ * ++ * "Packets sent once on transmission queue" MINUS ++ * "Packets left network, but not honestly ACKed yet" PLUS ++ * "Packets fast retransmitted" ++ */ ++static inline unsigned int tcp_packets_in_flight(const struct tcp_sock *tp) ++{ ++ return tp->packets_out - tcp_left_out(tp) + tp->retrans_out; ++} ++ ++#define TCP_INFINITE_SSTHRESH 0x7fffffff ++ ++static inline bool tcp_in_initial_slowstart(const struct tcp_sock *tp) ++{ ++ return tp->snd_ssthresh >= TCP_INFINITE_SSTHRESH; ++} ++ ++static inline bool tcp_in_cwnd_reduction(const struct sock *sk) ++{ ++ return (TCPF_CA_CWR | TCPF_CA_Recovery) & ++ (1 << inet_csk(sk)->icsk_ca_state); ++} ++ ++/* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd. ++ * The exception is cwnd reduction phase, when cwnd is decreasing towards ++ * ssthresh. ++ */ ++static inline __u32 tcp_current_ssthresh(const struct sock *sk) ++{ ++ const struct tcp_sock *tp = tcp_sk(sk); ++ ++ if (tcp_in_cwnd_reduction(sk)) ++ return tp->snd_ssthresh; ++ else ++ return max(tp->snd_ssthresh, ++ ((tp->snd_cwnd >> 1) + ++ (tp->snd_cwnd >> 2))); ++} ++ ++/* Use define here intentionally to get WARN_ON location shown at the caller */ ++#define tcp_verify_left_out(tp) WARN_ON(tcp_left_out(tp) > tp->packets_out) ++ ++void tcp_enter_cwr(struct sock *sk, const int set_ssthresh); ++__u32 tcp_init_cwnd(const struct tcp_sock *tp, const struct dst_entry *dst); ++ ++/* The maximum number of MSS of available cwnd for which TSO defers ++ * sending if not using sysctl_tcp_tso_win_divisor. ++ */ ++static inline __u32 tcp_max_tso_deferred_mss(const struct tcp_sock *tp) ++{ ++ return 3; ++} ++ ++/* Slow start with delack produces 3 packets of burst, so that ++ * it is safe "de facto". This will be the default - same as ++ * the default reordering threshold - but if reordering increases, ++ * we must be able to allow cwnd to burst at least this much in order ++ * to not pull it back when holes are filled. ++ */ ++static __inline__ __u32 tcp_max_burst(const struct tcp_sock *tp) ++{ ++ return tp->reordering; ++} ++ ++/* Returns end sequence number of the receiver's advertised window */ ++static inline u32 tcp_wnd_end(const struct tcp_sock *tp) ++{ ++ return tp->snd_una + tp->snd_wnd; ++} ++bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight); ++ ++static inline void tcp_check_probe_timer(struct sock *sk) ++{ ++ const struct tcp_sock *tp = tcp_sk(sk); ++ const struct inet_connection_sock *icsk = inet_csk(sk); ++ ++ if (!tp->packets_out && !icsk->icsk_pending) ++ inet_csk_reset_xmit_timer(sk, ICSK_TIME_PROBE0, ++ icsk->icsk_rto, TCP_RTO_MAX); ++} ++ ++static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq) ++{ ++ tp->snd_wl1 = seq; ++} ++ ++static inline void tcp_update_wl(struct tcp_sock *tp, u32 seq) ++{ ++ tp->snd_wl1 = seq; ++} ++ ++/* ++ * Calculate(/check) TCP checksum ++ */ ++static inline __sum16 tcp_v4_check(int len, __be32 saddr, ++ __be32 daddr, __wsum base) ++{ ++ return csum_tcpudp_magic(saddr,daddr,len,IPPROTO_TCP,base); ++} ++ ++static inline __sum16 __tcp_checksum_complete(struct sk_buff *skb) ++{ ++ return __skb_checksum_complete(skb); ++} ++ ++static inline bool tcp_checksum_complete(struct sk_buff *skb) ++{ ++ return !skb_csum_unnecessary(skb) && ++ __tcp_checksum_complete(skb); ++} ++ ++/* Prequeue for VJ style copy to user, combined with checksumming. */ ++ ++static inline void tcp_prequeue_init(struct tcp_sock *tp) ++{ ++ tp->ucopy.task = NULL; ++ tp->ucopy.len = 0; ++ tp->ucopy.memory = 0; ++ skb_queue_head_init(&tp->ucopy.prequeue); ++#ifdef CONFIG_NET_DMA ++ tp->ucopy.dma_chan = NULL; ++ tp->ucopy.wakeup = 0; ++ tp->ucopy.pinned_list = NULL; ++ tp->ucopy.dma_cookie = 0; ++#endif ++} ++ ++bool tcp_prequeue(struct sock *sk, struct sk_buff *skb); ++ ++#undef STATE_TRACE ++ ++#ifdef STATE_TRACE ++static const char *statename[]={ ++ "Unused","Established","Syn Sent","Syn Recv", ++ "Fin Wait 1","Fin Wait 2","Time Wait", "Close", ++ "Close Wait","Last ACK","Listen","Closing" ++}; ++#endif ++void tcp_set_state(struct sock *sk, int state); ++ ++void tcp_done(struct sock *sk); ++ ++static inline void tcp_sack_reset(struct tcp_options_received *rx_opt) ++{ ++ rx_opt->dsack = 0; ++ rx_opt->num_sacks = 0; ++} ++ ++u32 tcp_default_init_rwnd(u32 mss); ++ ++/* Determine a window scaling and initial window to offer. */ ++void tcp_select_initial_window(int __space, __u32 mss, __u32 *rcv_wnd, ++ __u32 *window_clamp, int wscale_ok, ++ __u8 *rcv_wscale, __u32 init_rcv_wnd); ++ ++static inline int tcp_win_from_space(int space) ++{ ++ return sysctl_tcp_adv_win_scale<=0 ? ++ (space>>(-sysctl_tcp_adv_win_scale)) : ++ space - (space>>sysctl_tcp_adv_win_scale); ++} ++ ++/* Note: caller must be prepared to deal with negative returns */ ++static inline int tcp_space(const struct sock *sk) ++{ ++ return tcp_win_from_space(sk->sk_rcvbuf - ++ atomic_read(&sk->sk_rmem_alloc)); ++} ++ ++static inline int tcp_full_space(const struct sock *sk) ++{ ++ return tcp_win_from_space(sk->sk_rcvbuf); ++} ++ ++static inline void tcp_openreq_init(struct request_sock *req, ++ struct tcp_options_received *rx_opt, ++ struct sk_buff *skb) ++{ ++ struct inet_request_sock *ireq = inet_rsk(req); ++ ++ req->rcv_wnd = 0; /* So that tcp_send_synack() knows! */ ++ req->cookie_ts = 0; ++ tcp_rsk(req)->rcv_isn = TCP_SKB_CB(skb)->seq; ++ tcp_rsk(req)->rcv_nxt = TCP_SKB_CB(skb)->seq + 1; ++ tcp_rsk(req)->snt_synack = 0; ++ req->mss = rx_opt->mss_clamp; ++ req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0; ++ ireq->tstamp_ok = rx_opt->tstamp_ok; ++ ireq->sack_ok = rx_opt->sack_ok; ++ ireq->snd_wscale = rx_opt->snd_wscale; ++ ireq->wscale_ok = rx_opt->wscale_ok; ++ ireq->acked = 0; ++ ireq->ecn_ok = 0; ++ ireq->ir_rmt_port = tcp_hdr(skb)->source; ++ ireq->ir_num = ntohs(tcp_hdr(skb)->dest); ++} ++ ++void tcp_enter_memory_pressure(struct sock *sk); ++ ++static inline int keepalive_intvl_when(const struct tcp_sock *tp) ++{ ++ return tp->keepalive_intvl ? : sysctl_tcp_keepalive_intvl; ++} ++ ++static inline int keepalive_time_when(const struct tcp_sock *tp) ++{ ++ return tp->keepalive_time ? : sysctl_tcp_keepalive_time; ++} ++ ++static inline int keepalive_probes(const struct tcp_sock *tp) ++{ ++ return tp->keepalive_probes ? : sysctl_tcp_keepalive_probes; ++} ++ ++static inline u32 keepalive_time_elapsed(const struct tcp_sock *tp) ++{ ++ const struct inet_connection_sock *icsk = &tp->inet_conn; ++ ++ return min_t(u32, tcp_time_stamp - icsk->icsk_ack.lrcvtime, ++ tcp_time_stamp - tp->rcv_tstamp); ++} ++ ++static inline int tcp_fin_time(const struct sock *sk) ++{ ++ int fin_timeout = tcp_sk(sk)->linger2 ? : sysctl_tcp_fin_timeout; ++ const int rto = inet_csk(sk)->icsk_rto; ++ ++ if (fin_timeout < (rto << 2) - (rto >> 1)) ++ fin_timeout = (rto << 2) - (rto >> 1); ++ ++ return fin_timeout; ++} ++ ++static inline bool tcp_paws_check(const struct tcp_options_received *rx_opt, ++ int paws_win) ++{ ++ if ((s32)(rx_opt->ts_recent - rx_opt->rcv_tsval) <= paws_win) ++ return true; ++ if (unlikely(get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)) ++ return true; ++ /* ++ * Some OSes send SYN and SYNACK messages with tsval=0 tsecr=0, ++ * then following tcp messages have valid values. Ignore 0 value, ++ * or else 'negative' tsval might forbid us to accept their packets. ++ */ ++ if (!rx_opt->ts_recent) ++ return true; ++ return false; ++} ++ ++static inline bool tcp_paws_reject(const struct tcp_options_received *rx_opt, ++ int rst) ++{ ++ if (tcp_paws_check(rx_opt, 0)) ++ return false; ++ ++ /* RST segments are not recommended to carry timestamp, ++ and, if they do, it is recommended to ignore PAWS because ++ "their cleanup function should take precedence over timestamps." ++ Certainly, it is mistake. It is necessary to understand the reasons ++ of this constraint to relax it: if peer reboots, clock may go ++ out-of-sync and half-open connections will not be reset. ++ Actually, the problem would be not existing if all ++ the implementations followed draft about maintaining clock ++ via reboots. Linux-2.2 DOES NOT! ++ ++ However, we can relax time bounds for RST segments to MSL. ++ */ ++ if (rst && get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_MSL) ++ return false; ++ return true; ++} ++ ++static inline void tcp_mib_init(struct net *net) ++{ ++ /* See RFC 2012 */ ++ TCP_ADD_STATS_USER(net, TCP_MIB_RTOALGORITHM, 1); ++ TCP_ADD_STATS_USER(net, TCP_MIB_RTOMIN, TCP_RTO_MIN*1000/HZ); ++ TCP_ADD_STATS_USER(net, TCP_MIB_RTOMAX, TCP_RTO_MAX*1000/HZ); ++ TCP_ADD_STATS_USER(net, TCP_MIB_MAXCONN, -1); ++} ++ ++/* from STCP */ ++static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp) ++{ ++ tp->lost_skb_hint = NULL; ++} ++ ++static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp) ++{ ++ tcp_clear_retrans_hints_partial(tp); ++ tp->retransmit_skb_hint = NULL; ++} ++ ++/* MD5 Signature */ ++struct crypto_hash; ++ ++union tcp_md5_addr { ++ struct in_addr a4; ++#if IS_ENABLED(CONFIG_IPV6) ++ struct in6_addr a6; ++#endif ++}; ++ ++/* - key database */ ++struct tcp_md5sig_key { ++ struct hlist_node node; ++ u8 keylen; ++ u8 family; /* AF_INET or AF_INET6 */ ++ union tcp_md5_addr addr; ++ u8 key[TCP_MD5SIG_MAXKEYLEN]; ++ struct rcu_head rcu; ++}; ++ ++/* - sock block */ ++struct tcp_md5sig_info { ++ struct hlist_head head; ++ struct rcu_head rcu; ++}; ++ ++/* - pseudo header */ ++struct tcp4_pseudohdr { ++ __be32 saddr; ++ __be32 daddr; ++ __u8 pad; ++ __u8 protocol; ++ __be16 len; ++}; ++ ++struct tcp6_pseudohdr { ++ struct in6_addr saddr; ++ struct in6_addr daddr; ++ __be32 len; ++ __be32 protocol; /* including padding */ ++}; ++ ++union tcp_md5sum_block { ++ struct tcp4_pseudohdr ip4; ++#if IS_ENABLED(CONFIG_IPV6) ++ struct tcp6_pseudohdr ip6; ++#endif ++}; ++ ++/* - pool: digest algorithm, hash description and scratch buffer */ ++struct tcp_md5sig_pool { ++ struct hash_desc md5_desc; ++ union tcp_md5sum_block md5_blk; ++}; ++ ++/* - functions */ ++int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, ++ const struct sock *sk, const struct request_sock *req, ++ const struct sk_buff *skb); ++int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr, ++ int family, const u8 *newkey, u8 newkeylen, gfp_t gfp); ++int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, ++ int family); ++struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk, ++ struct sock *addr_sk); ++ ++#ifdef CONFIG_TCP_MD5SIG ++struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk, ++ const union tcp_md5_addr *addr, ++ int family); ++#define tcp_twsk_md5_key(twsk) ((twsk)->tw_md5_key) ++#else ++static inline struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk, ++ const union tcp_md5_addr *addr, ++ int family) ++{ ++ return NULL; ++} ++#define tcp_twsk_md5_key(twsk) NULL ++#endif ++ ++bool tcp_alloc_md5sig_pool(void); ++ ++struct tcp_md5sig_pool *tcp_get_md5sig_pool(void); ++static inline void tcp_put_md5sig_pool(void) ++{ ++ local_bh_enable(); ++} ++ ++int tcp_md5_hash_header(struct tcp_md5sig_pool *, const struct tcphdr *); ++int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *, ++ unsigned int header_len); ++int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, ++ const struct tcp_md5sig_key *key); ++ ++/* From tcp_fastopen.c */ ++void tcp_fastopen_cache_get(struct sock *sk, u16 *mss, ++ struct tcp_fastopen_cookie *cookie, int *syn_loss, ++ unsigned long *last_syn_loss); ++void tcp_fastopen_cache_set(struct sock *sk, u16 mss, ++ struct tcp_fastopen_cookie *cookie, bool syn_lost); ++struct tcp_fastopen_request { ++ /* Fast Open cookie. Size 0 means a cookie request */ ++ struct tcp_fastopen_cookie cookie; ++ struct msghdr *data; /* data in MSG_FASTOPEN */ ++ size_t size; ++ int copied; /* queued in tcp_connect() */ ++}; ++void tcp_free_fastopen_req(struct tcp_sock *tp); ++ ++extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; ++int tcp_fastopen_reset_cipher(void *key, unsigned int len); ++void tcp_fastopen_cookie_gen(__be32 src, __be32 dst, ++ struct tcp_fastopen_cookie *foc); ++void tcp_fastopen_init_key_once(bool publish); ++#define TCP_FASTOPEN_KEY_LENGTH 16 ++ ++/* Fastopen key context */ ++struct tcp_fastopen_context { ++ struct crypto_cipher *tfm; ++ __u8 key[TCP_FASTOPEN_KEY_LENGTH]; ++ struct rcu_head rcu; ++}; ++ ++/* write queue abstraction */ ++static inline void tcp_write_queue_purge(struct sock *sk) ++{ ++ struct sk_buff *skb; ++ ++ while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) ++ sk_wmem_free_skb(sk, skb); ++ sk_mem_reclaim(sk); ++ tcp_clear_all_retrans_hints(tcp_sk(sk)); ++} ++ ++static inline struct sk_buff *tcp_write_queue_head(const struct sock *sk) ++{ ++ return skb_peek(&sk->sk_write_queue); ++} ++ ++static inline struct sk_buff *tcp_write_queue_tail(const struct sock *sk) ++{ ++ return skb_peek_tail(&sk->sk_write_queue); ++} ++ ++static inline struct sk_buff *tcp_write_queue_next(const struct sock *sk, ++ const struct sk_buff *skb) ++{ ++ return skb_queue_next(&sk->sk_write_queue, skb); ++} ++ ++static inline struct sk_buff *tcp_write_queue_prev(const struct sock *sk, ++ const struct sk_buff *skb) ++{ ++ return skb_queue_prev(&sk->sk_write_queue, skb); ++} ++ ++#define tcp_for_write_queue(skb, sk) \ ++ skb_queue_walk(&(sk)->sk_write_queue, skb) ++ ++#define tcp_for_write_queue_from(skb, sk) \ ++ skb_queue_walk_from(&(sk)->sk_write_queue, skb) ++ ++#define tcp_for_write_queue_from_safe(skb, tmp, sk) \ ++ skb_queue_walk_from_safe(&(sk)->sk_write_queue, skb, tmp) ++ ++static inline struct sk_buff *tcp_send_head(const struct sock *sk) ++{ ++ return sk->sk_send_head; ++} ++ ++static inline bool tcp_skb_is_last(const struct sock *sk, ++ const struct sk_buff *skb) ++{ ++ return skb_queue_is_last(&sk->sk_write_queue, skb); ++} ++ ++static inline void tcp_advance_send_head(struct sock *sk, const struct sk_buff *skb) ++{ ++ if (tcp_skb_is_last(sk, skb)) ++ sk->sk_send_head = NULL; ++ else ++ sk->sk_send_head = tcp_write_queue_next(sk, skb); ++} ++ ++static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unlinked) ++{ ++ if (sk->sk_send_head == skb_unlinked) ++ sk->sk_send_head = NULL; ++} ++ ++static inline void tcp_init_send_head(struct sock *sk) ++{ ++ sk->sk_send_head = NULL; ++} ++ ++static inline void __tcp_add_write_queue_tail(struct sock *sk, struct sk_buff *skb) ++{ ++ __skb_queue_tail(&sk->sk_write_queue, skb); ++} ++ ++static inline void tcp_add_write_queue_tail(struct sock *sk, struct sk_buff *skb) ++{ ++ __tcp_add_write_queue_tail(sk, skb); ++ ++ /* Queue it, remembering where we must start sending. */ ++ if (sk->sk_send_head == NULL) { ++ sk->sk_send_head = skb; ++ ++ if (tcp_sk(sk)->highest_sack == NULL) ++ tcp_sk(sk)->highest_sack = skb; ++ } ++} ++ ++static inline void __tcp_add_write_queue_head(struct sock *sk, struct sk_buff *skb) ++{ ++ __skb_queue_head(&sk->sk_write_queue, skb); ++} ++ ++/* Insert buff after skb on the write queue of sk. */ ++static inline void tcp_insert_write_queue_after(struct sk_buff *skb, ++ struct sk_buff *buff, ++ struct sock *sk) ++{ ++ __skb_queue_after(&sk->sk_write_queue, skb, buff); ++} ++ ++/* Insert new before skb on the write queue of sk. */ ++static inline void tcp_insert_write_queue_before(struct sk_buff *new, ++ struct sk_buff *skb, ++ struct sock *sk) ++{ ++ __skb_queue_before(&sk->sk_write_queue, skb, new); ++ ++ if (sk->sk_send_head == skb) ++ sk->sk_send_head = new; ++} ++ ++static inline void tcp_unlink_write_queue(struct sk_buff *skb, struct sock *sk) ++{ ++ __skb_unlink(skb, &sk->sk_write_queue); ++} ++ ++static inline bool tcp_write_queue_empty(struct sock *sk) ++{ ++ return skb_queue_empty(&sk->sk_write_queue); ++} ++ ++static inline void tcp_push_pending_frames(struct sock *sk) ++{ ++ if (tcp_send_head(sk)) { ++ struct tcp_sock *tp = tcp_sk(sk); ++ ++ __tcp_push_pending_frames(sk, tcp_current_mss(sk), tp->nonagle); ++ } ++} ++ ++/* Start sequence of the skb just after the highest skb with SACKed ++ * bit, valid only if sacked_out > 0 or when the caller has ensured ++ * validity by itself. ++ */ ++static inline u32 tcp_highest_sack_seq(struct tcp_sock *tp) ++{ ++ if (!tp->sacked_out) ++ return tp->snd_una; ++ ++ if (tp->highest_sack == NULL) ++ return tp->snd_nxt; ++ ++ return TCP_SKB_CB(tp->highest_sack)->seq; ++} ++ ++static inline void tcp_advance_highest_sack(struct sock *sk, struct sk_buff *skb) ++{ ++ tcp_sk(sk)->highest_sack = tcp_skb_is_last(sk, skb) ? NULL : ++ tcp_write_queue_next(sk, skb); ++} ++ ++static inline struct sk_buff *tcp_highest_sack(struct sock *sk) ++{ ++ return tcp_sk(sk)->highest_sack; ++} ++ ++static inline void tcp_highest_sack_reset(struct sock *sk) ++{ ++ tcp_sk(sk)->highest_sack = tcp_write_queue_head(sk); ++} ++ ++/* Called when old skb is about to be deleted (to be combined with new skb) */ ++static inline void tcp_highest_sack_combine(struct sock *sk, ++ struct sk_buff *old, ++ struct sk_buff *new) ++{ ++ if (tcp_sk(sk)->sacked_out && (old == tcp_sk(sk)->highest_sack)) ++ tcp_sk(sk)->highest_sack = new; ++} ++ ++/* Determines whether this is a thin stream (which may suffer from ++ * increased latency). Used to trigger latency-reducing mechanisms. ++ */ ++static inline bool tcp_stream_is_thin(struct tcp_sock *tp) ++{ ++ return tp->packets_out < 4 && !tcp_in_initial_slowstart(tp); ++} ++ ++/* /proc */ ++enum tcp_seq_states { ++ TCP_SEQ_STATE_LISTENING, ++ TCP_SEQ_STATE_OPENREQ, ++ TCP_SEQ_STATE_ESTABLISHED, ++}; ++ ++int tcp_seq_open(struct inode *inode, struct file *file); ++ ++struct tcp_seq_afinfo { ++ char *name; ++ sa_family_t family; ++ const struct file_operations *seq_fops; ++ struct seq_operations seq_ops; ++}; ++ ++struct tcp_iter_state { ++ struct seq_net_private p; ++ sa_family_t family; ++ enum tcp_seq_states state; ++ struct sock *syn_wait_sk; ++ int bucket, offset, sbucket, num; ++ kuid_t uid; ++ loff_t last_pos; ++}; ++ ++int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo); ++void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo); ++ ++extern struct request_sock_ops tcp_request_sock_ops; ++extern struct request_sock_ops tcp6_request_sock_ops; ++ ++void tcp_v4_destroy_sock(struct sock *sk); ++ ++struct sk_buff *tcp_gso_segment(struct sk_buff *skb, ++ netdev_features_t features); ++struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb); ++int tcp_gro_complete(struct sk_buff *skb); ++ ++void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr); ++ ++static inline u32 tcp_notsent_lowat(const struct tcp_sock *tp) ++{ ++ return tp->notsent_lowat ?: sysctl_tcp_notsent_lowat; ++} ++ ++static inline bool tcp_stream_memory_free(const struct sock *sk) ++{ ++ const struct tcp_sock *tp = tcp_sk(sk); ++ u32 notsent_bytes = tp->write_seq - tp->snd_nxt; ++ ++ return notsent_bytes < tcp_notsent_lowat(tp); ++} ++ ++#ifdef CONFIG_PROC_FS ++int tcp4_proc_init(void); ++void tcp4_proc_exit(void); ++#endif ++ ++/* TCP af-specific functions */ ++struct tcp_sock_af_ops { ++#ifdef CONFIG_TCP_MD5SIG ++ struct tcp_md5sig_key *(*md5_lookup) (struct sock *sk, ++ struct sock *addr_sk); ++ int (*calc_md5_hash) (char *location, ++ struct tcp_md5sig_key *md5, ++ const struct sock *sk, ++ const struct request_sock *req, ++ const struct sk_buff *skb); ++ int (*md5_parse) (struct sock *sk, ++ char __user *optval, ++ int optlen); ++#endif ++}; ++ ++struct tcp_request_sock_ops { ++#ifdef CONFIG_TCP_MD5SIG ++ struct tcp_md5sig_key *(*md5_lookup) (struct sock *sk, ++ struct request_sock *req); ++ int (*calc_md5_hash) (char *location, ++ struct tcp_md5sig_key *md5, ++ const struct sock *sk, ++ const struct request_sock *req, ++ const struct sk_buff *skb); ++#endif ++}; ++ ++int tcpv4_offload_init(void); ++ ++void tcp_v4_init(void); ++void tcp_init(void); ++ ++#endif /* _TCP_H */ +diff -Nur linux-3.15-rc7.orig/net/core/request_sock.c linux-3.15-rc7/net/core/request_sock.c +--- linux-3.15-rc7.orig/net/core/request_sock.c 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/core/request_sock.c 2014-05-31 22:42:49.028605326 +0200 +@@ -131,6 +131,7 @@ + kfree(lopt); + } + ++#ifdef CONFIG_TCP_FASTOPEN + /* + * This function is called to set a Fast Open socket's "fastopen_rsk" field + * to NULL when a TFO socket no longer needs to access the request_sock. +@@ -222,3 +223,4 @@ + spin_unlock_bh(&fastopenq->lock); + sock_put(lsk); + } ++#endif +diff -Nur linux-3.15-rc7.orig/net/core/request_sock.c.orig linux-3.15-rc7/net/core/request_sock.c.orig +--- linux-3.15-rc7.orig/net/core/request_sock.c.orig 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.15-rc7/net/core/request_sock.c.orig 2014-05-26 01:06:00.000000000 +0200 +@@ -0,0 +1,224 @@ ++/* ++ * NET Generic infrastructure for Network protocols. ++ * ++ * Authors: Arnaldo Carvalho de Melo ++ * ++ * From code originally in include/net/tcp.h ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version ++ * 2 of the License, or (at your option) any later version. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++/* ++ * Maximum number of SYN_RECV sockets in queue per LISTEN socket. ++ * One SYN_RECV socket costs about 80bytes on a 32bit machine. ++ * It would be better to replace it with a global counter for all sockets ++ * but then some measure against one socket starving all other sockets ++ * would be needed. ++ * ++ * The minimum value of it is 128. Experiments with real servers show that ++ * it is absolutely not enough even at 100conn/sec. 256 cures most ++ * of problems. ++ * This value is adjusted to 128 for low memory machines, ++ * and it will increase in proportion to the memory of machine. ++ * Note : Dont forget somaxconn that may limit backlog too. ++ */ ++int sysctl_max_syn_backlog = 256; ++EXPORT_SYMBOL(sysctl_max_syn_backlog); ++ ++int reqsk_queue_alloc(struct request_sock_queue *queue, ++ unsigned int nr_table_entries) ++{ ++ size_t lopt_size = sizeof(struct listen_sock); ++ struct listen_sock *lopt; ++ ++ nr_table_entries = min_t(u32, nr_table_entries, sysctl_max_syn_backlog); ++ nr_table_entries = max_t(u32, nr_table_entries, 8); ++ nr_table_entries = roundup_pow_of_two(nr_table_entries + 1); ++ lopt_size += nr_table_entries * sizeof(struct request_sock *); ++ if (lopt_size > PAGE_SIZE) ++ lopt = vzalloc(lopt_size); ++ else ++ lopt = kzalloc(lopt_size, GFP_KERNEL); ++ if (lopt == NULL) ++ return -ENOMEM; ++ ++ for (lopt->max_qlen_log = 3; ++ (1 << lopt->max_qlen_log) < nr_table_entries; ++ lopt->max_qlen_log++); ++ ++ get_random_bytes(&lopt->hash_rnd, sizeof(lopt->hash_rnd)); ++ rwlock_init(&queue->syn_wait_lock); ++ queue->rskq_accept_head = NULL; ++ lopt->nr_table_entries = nr_table_entries; ++ ++ write_lock_bh(&queue->syn_wait_lock); ++ queue->listen_opt = lopt; ++ write_unlock_bh(&queue->syn_wait_lock); ++ ++ return 0; ++} ++ ++void __reqsk_queue_destroy(struct request_sock_queue *queue) ++{ ++ struct listen_sock *lopt; ++ size_t lopt_size; ++ ++ /* ++ * this is an error recovery path only ++ * no locking needed and the lopt is not NULL ++ */ ++ ++ lopt = queue->listen_opt; ++ lopt_size = sizeof(struct listen_sock) + ++ lopt->nr_table_entries * sizeof(struct request_sock *); ++ ++ if (lopt_size > PAGE_SIZE) ++ vfree(lopt); ++ else ++ kfree(lopt); ++} ++ ++static inline struct listen_sock *reqsk_queue_yank_listen_sk( ++ struct request_sock_queue *queue) ++{ ++ struct listen_sock *lopt; ++ ++ write_lock_bh(&queue->syn_wait_lock); ++ lopt = queue->listen_opt; ++ queue->listen_opt = NULL; ++ write_unlock_bh(&queue->syn_wait_lock); ++ ++ return lopt; ++} ++ ++void reqsk_queue_destroy(struct request_sock_queue *queue) ++{ ++ /* make all the listen_opt local to us */ ++ struct listen_sock *lopt = reqsk_queue_yank_listen_sk(queue); ++ size_t lopt_size = sizeof(struct listen_sock) + ++ lopt->nr_table_entries * sizeof(struct request_sock *); ++ ++ if (lopt->qlen != 0) { ++ unsigned int i; ++ ++ for (i = 0; i < lopt->nr_table_entries; i++) { ++ struct request_sock *req; ++ ++ while ((req = lopt->syn_table[i]) != NULL) { ++ lopt->syn_table[i] = req->dl_next; ++ lopt->qlen--; ++ reqsk_free(req); ++ } ++ } ++ } ++ ++ WARN_ON(lopt->qlen != 0); ++ if (lopt_size > PAGE_SIZE) ++ vfree(lopt); ++ else ++ kfree(lopt); ++} ++ ++/* ++ * This function is called to set a Fast Open socket's "fastopen_rsk" field ++ * to NULL when a TFO socket no longer needs to access the request_sock. ++ * This happens only after 3WHS has been either completed or aborted (e.g., ++ * RST is received). ++ * ++ * Before TFO, a child socket is created only after 3WHS is completed, ++ * hence it never needs to access the request_sock. things get a lot more ++ * complex with TFO. A child socket, accepted or not, has to access its ++ * request_sock for 3WHS processing, e.g., to retransmit SYN-ACK pkts, ++ * until 3WHS is either completed or aborted. Afterwards the req will stay ++ * until either the child socket is accepted, or in the rare case when the ++ * listener is closed before the child is accepted. ++ * ++ * In short, a request socket is only freed after BOTH 3WHS has completed ++ * (or aborted) and the child socket has been accepted (or listener closed). ++ * When a child socket is accepted, its corresponding req->sk is set to ++ * NULL since it's no longer needed. More importantly, "req->sk == NULL" ++ * will be used by the code below to determine if a child socket has been ++ * accepted or not, and the check is protected by the fastopenq->lock ++ * described below. ++ * ++ * Note that fastopen_rsk is only accessed from the child socket's context ++ * with its socket lock held. But a request_sock (req) can be accessed by ++ * both its child socket through fastopen_rsk, and a listener socket through ++ * icsk_accept_queue.rskq_accept_head. To protect the access a simple spin ++ * lock per listener "icsk->icsk_accept_queue.fastopenq->lock" is created. ++ * only in the rare case when both the listener and the child locks are held, ++ * e.g., in inet_csk_listen_stop() do we not need to acquire the lock. ++ * The lock also protects other fields such as fastopenq->qlen, which is ++ * decremented by this function when fastopen_rsk is no longer needed. ++ * ++ * Note that another solution was to simply use the existing socket lock ++ * from the listener. But first socket lock is difficult to use. It is not ++ * a simple spin lock - one must consider sock_owned_by_user() and arrange ++ * to use sk_add_backlog() stuff. But what really makes it infeasible is the ++ * locking hierarchy violation. E.g., inet_csk_listen_stop() may try to ++ * acquire a child's lock while holding listener's socket lock. A corner ++ * case might also exist in tcp_v4_hnd_req() that will trigger this locking ++ * order. ++ * ++ * When a TFO req is created, it needs to sock_hold its listener to prevent ++ * the latter data structure from going away. ++ * ++ * This function also sets "treq->listener" to NULL and unreference listener ++ * socket. treq->listener is used by the listener so it is protected by the ++ * fastopenq->lock in this function. ++ */ ++void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, ++ bool reset) ++{ ++ struct sock *lsk = tcp_rsk(req)->listener; ++ struct fastopen_queue *fastopenq = ++ inet_csk(lsk)->icsk_accept_queue.fastopenq; ++ ++ tcp_sk(sk)->fastopen_rsk = NULL; ++ spin_lock_bh(&fastopenq->lock); ++ fastopenq->qlen--; ++ tcp_rsk(req)->listener = NULL; ++ if (req->sk) /* the child socket hasn't been accepted yet */ ++ goto out; ++ ++ if (!reset || lsk->sk_state != TCP_LISTEN) { ++ /* If the listener has been closed don't bother with the ++ * special RST handling below. ++ */ ++ spin_unlock_bh(&fastopenq->lock); ++ sock_put(lsk); ++ reqsk_free(req); ++ return; ++ } ++ /* Wait for 60secs before removing a req that has triggered RST. ++ * This is a simple defense against TFO spoofing attack - by ++ * counting the req against fastopen.max_qlen, and disabling ++ * TFO when the qlen exceeds max_qlen. ++ * ++ * For more details see CoNext'11 "TCP Fast Open" paper. ++ */ ++ req->expires = jiffies + 60*HZ; ++ if (fastopenq->rskq_rst_head == NULL) ++ fastopenq->rskq_rst_head = req; ++ else ++ fastopenq->rskq_rst_tail->dl_next = req; ++ ++ req->dl_next = NULL; ++ fastopenq->rskq_rst_tail = req; ++ fastopenq->qlen++; ++out: ++ spin_unlock_bh(&fastopenq->lock); ++ sock_put(lsk); ++} +diff -Nur linux-3.15-rc7.orig/net/ipv4/Kconfig linux-3.15-rc7/net/ipv4/Kconfig +--- linux-3.15-rc7.orig/net/ipv4/Kconfig 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/ipv4/Kconfig 2014-05-31 22:42:49.028605326 +0200 +@@ -307,6 +307,10 @@ + the notion of a secure tunnel for IPSEC and then use routing protocol + on top. + ++config TCP_FASTOPEN ++ bool "Enable TCP fastopen" ++ default n ++ + config INET_AH + tristate "IP: AH transformation" + select XFRM_ALGO +diff -Nur linux-3.15-rc7.orig/net/ipv4/Makefile linux-3.15-rc7/net/ipv4/Makefile +--- linux-3.15-rc7.orig/net/ipv4/Makefile 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/ipv4/Makefile 2014-05-31 22:42:49.028605326 +0200 +@@ -7,7 +7,7 @@ + ip_output.o ip_sockglue.o inet_hashtables.o \ + inet_timewait_sock.o inet_connection_sock.o \ + tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \ +- tcp_minisocks.o tcp_cong.o tcp_metrics.o tcp_fastopen.o \ ++ tcp_minisocks.o tcp_cong.o tcp_metrics.o \ + tcp_offload.o datagram.o raw.o udp.o udplite.o \ + udp_offload.o arp.o icmp.o devinet.o af_inet.o igmp.o \ + fib_frontend.o fib_semantics.o fib_trie.o \ +@@ -51,6 +51,7 @@ + obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o + obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o + obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o ++obj-$(CONFIG_TCP_FASTOPEN) += tcp_fastopen.o + obj-$(CONFIG_MEMCG_KMEM) += tcp_memcontrol.o + obj-$(CONFIG_NETLABEL) += cipso_ipv4.o + +diff -Nur linux-3.15-rc7.orig/net/ipv4/sysctl_net_ipv4.c linux-3.15-rc7/net/ipv4/sysctl_net_ipv4.c +--- linux-3.15-rc7.orig/net/ipv4/sysctl_net_ipv4.c 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/ipv4/sysctl_net_ipv4.c 2014-05-31 22:42:49.028605326 +0200 +@@ -200,6 +200,7 @@ + return ret; + } + ++#ifdef CONFIG_TCP_FASTOPEN + static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos) +@@ -246,6 +247,7 @@ + kfree(tbl.data); + return ret; + } ++#endif + + static struct ctl_table ipv4_table[] = { + { +@@ -388,6 +390,7 @@ + .proc_handler = proc_dointvec + }, + #endif ++#ifdef CONFIG_TCP_FASTOPEN + { + .procname = "tcp_fastopen", + .data = &sysctl_tcp_fastopen, +@@ -401,6 +404,7 @@ + .maxlen = ((TCP_FASTOPEN_KEY_LENGTH * 2) + 10), + .proc_handler = proc_tcp_fastopen_key, + }, ++#endif + { + .procname = "tcp_tw_recycle", + .data = &tcp_death_row.sysctl_tw_recycle, +diff -Nur linux-3.15-rc7.orig/net/ipv4/tcp.c linux-3.15-rc7/net/ipv4/tcp.c +--- linux-3.15-rc7.orig/net/ipv4/tcp.c 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/ipv4/tcp.c 2014-05-31 22:42:49.028605326 +0200 +@@ -1036,6 +1036,7 @@ + return tmp; + } + ++#ifdef CONFIG_TCP_FASTOPEN + void tcp_free_fastopen_req(struct tcp_sock *tp) + { + if (tp->fastopen_req != NULL) { +@@ -1069,6 +1070,7 @@ + tcp_free_fastopen_req(tp); + return err; + } ++#endif + + int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, + size_t size) +@@ -1084,6 +1086,7 @@ + lock_sock(sk); + + flags = msg->msg_flags; ++#ifdef CONFIG_TCP_FASTOPEN + if (flags & MSG_FASTOPEN) { + err = tcp_sendmsg_fastopen(sk, msg, &copied_syn, size); + if (err == -EINPROGRESS && copied_syn > 0) +@@ -1092,6 +1095,7 @@ + goto out_err; + offset = copied_syn; + } ++#endif + + timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT); + +diff -Nur linux-3.15-rc7.orig/net/ipv4/tcp_ipv4.c linux-3.15-rc7/net/ipv4/tcp_ipv4.c +--- linux-3.15-rc7.orig/net/ipv4/tcp_ipv4.c 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/ipv4/tcp_ipv4.c 2014-05-31 22:42:49.032605359 +0200 +@@ -1260,6 +1260,7 @@ + }; + #endif + ++#ifdef CONFIG_TCP_FASTOPEN + static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb, + struct request_sock *req, + struct tcp_fastopen_cookie *foc, +@@ -1440,6 +1441,23 @@ + WARN_ON(req->sk == NULL); + return 0; + } ++#else ++static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb, ++ struct request_sock *req, ++ struct tcp_fastopen_cookie *foc, ++ struct tcp_fastopen_cookie *valid_foc) ++{ ++ return false; ++} ++ ++static int tcp_v4_conn_req_fastopen(struct sock *sk, ++ struct sk_buff *skb, ++ struct sk_buff *skb_synack, ++ struct request_sock *req) ++{ ++ return 0; ++} ++#endif + + int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) + { +diff -Nur linux-3.15-rc7.orig/net/Kconfig linux-3.15-rc7/net/Kconfig +--- linux-3.15-rc7.orig/net/Kconfig 2014-05-26 01:06:00.000000000 +0200 ++++ linux-3.15-rc7/net/Kconfig 2014-05-31 22:42:49.028605326 +0200 +@@ -53,8 +53,8 @@ + + config INET + bool "TCP/IP networking" +- select CRYPTO +- select CRYPTO_AES ++ select CRYPTO if TCP_FASTOPEN ++ select CRYPTO_AES if TCP_FASTOPEN + ---help--- + These are the protocols used on the Internet and on most local + Ethernets. It is highly recommended to say Y here (this will enlarge diff --git a/target/linux/patches/3.15-rc8/uuid.patch b/target/linux/patches/3.15-rc8/uuid.patch new file mode 100644 index 000000000..e8d523074 --- /dev/null +++ b/target/linux/patches/3.15-rc8/uuid.patch @@ -0,0 +1,263 @@ +diff -Nur linux-3.14.1.orig/block/genhd.c linux-3.14.1/block/genhd.c +--- linux-3.14.1.orig/block/genhd.c 2014-04-14 15:50:10.000000000 +0200 ++++ linux-3.14.1/block/genhd.c 2014-04-24 09:50:05.281309701 +0200 +@@ -34,7 +34,7 @@ + static DEFINE_MUTEX(ext_devt_mutex); + static DEFINE_IDR(ext_devt_idr); + +-static struct device_type disk_type; ++struct device_type disk_type; + + static void disk_check_events(struct disk_events *ev, + unsigned int *clearing_ptr); +@@ -1121,7 +1121,7 @@ + return NULL; + } + +-static struct device_type disk_type = { ++struct device_type disk_type = { + .name = "disk", + .groups = disk_attr_groups, + .release = disk_release, +diff -Nur linux-3.14.1.orig/init/do_mounts.c linux-3.14.1/init/do_mounts.c +--- linux-3.14.1.orig/init/do_mounts.c 2014-04-14 15:50:10.000000000 +0200 ++++ linux-3.14.1/init/do_mounts.c 2014-04-24 10:17:54.043200973 +0200 +@@ -33,6 +33,7 @@ + #include + #include + ++#include "../fs/ext2/ext2.h" + #include "do_mounts.h" + + int __initdata rd_doload; /* 1 = load RAM disk, 0 = don't load */ +@@ -44,6 +45,132 @@ + + dev_t ROOT_DEV; + ++#ifdef CONFIG_EXT2_FS ++/* support for root=UUID=ce40d6b2-18eb-4a75-aefe-7ddb0995ce63 bootargs */ ++ ++#include ++ ++__u8 root_dev_uuid[16]; ++int root_dev_type; /* 0 = normal (/dev/hda1, 0301); 1 = UUID; 3 = bad */ ++ ++/* imported from block/genhd.c after removing its static qualifier */ ++extern struct device_type disk_type; ++ ++/* helper function */ ++static __u8 __init fromhex(char c) ++{ ++ if (c >= '0' && c <= '9') ++ return (c - '0'); ++ c &= ~32; ++ if (c >= 'A' && c <= 'F') ++ return (c - 'A' + 10); ++ return (0xFF); ++} ++ ++static void __init parse_uuid(const char *s) ++{ ++ int i; ++ __u8 j, k; ++ ++ if (strlen(s) != 36 || s[8] != '-' || s[13] != '-' || ++ s[18] != '-' || s[23] != '-') ++ goto bad_uuid; ++ for (i = 0; i < 16; i++) { ++ if (*s == '-') ++ ++s; ++ j = fromhex(*s++); ++ k = fromhex(*s++); ++ if (j == 0xFF || k == 0xFF) ++ goto bad_uuid; ++ root_dev_uuid[i] = (j << 4) | k; ++ } ++ return; ++ bad_uuid: ++ /* we cannot panic here, defer */ ++ root_dev_type = 3; ++} ++ ++/* from drivers/md/md.c */ ++static void __init initcode_bi_complete(struct bio *bio, int error) ++{ ++ complete((struct completion*)bio->bi_private); ++} ++ ++static int __init initcode_sync_page_read(struct block_device *bdev, ++ sector_t sector, int size, struct page *page) ++{ ++ struct bio *bio = bio_alloc(GFP_NOIO, 1); ++ struct completion event; ++ int ret, rw = READ; ++ ++ rw |= REQ_SYNC; ++ ++ bio->bi_bdev = bdev; ++ bio->bi_iter.bi_sector = sector; ++ bio_add_page(bio, page, size, 0); ++ init_completion(&event); ++ bio->bi_private = &event; ++ bio->bi_end_io = initcode_bi_complete; ++ submit_bio(rw, bio); ++ wait_for_completion(&event); ++ ++ ret = test_bit(BIO_UPTODATE, &bio->bi_flags); ++ bio_put(bio); ++ /* 0 = failure */ ++ return ret; ++} ++ ++/* most of this taken from fs/ext2/super.c */ ++static int __init check_dev(struct gendisk *thedisk, dev_t devt, ++ int blocksize, struct page *page) ++{ ++ struct ext2_super_block * es; ++ struct block_device *bdev; ++ unsigned long sb_block = 1; ++ unsigned long logic_sb_block; ++ unsigned long offset = 0; ++ int rv = /* not found */ 0; ++ char bff[22]; ++ ++ bdev = bdget(devt); ++ if (blkdev_get(bdev, FMODE_READ, NULL)) { ++ printk(KERN_ERR "VFS: opening block device %s failed!\n", ++ format_dev_t(bff, devt)); ++ return (0); ++ } ++ ++ if (blocksize != BLOCK_SIZE) { ++ logic_sb_block = (sb_block*BLOCK_SIZE) / blocksize; ++ offset = (sb_block*BLOCK_SIZE) % blocksize; ++ } else { ++ logic_sb_block = sb_block; ++ } ++ ++// printk(KERN_ERR "D: attempting to read %d @%lu from " ++// "bdev %p devt %08X %s\n", blocksize, logic_sb_block, ++// bdev, devt, format_dev_t(bff, devt)); ++ if (!initcode_sync_page_read(bdev, logic_sb_block, blocksize, page)) { ++// printk(KERN_ERR "D: failed!\n"); ++ goto out; ++ } ++ es = (struct ext2_super_block *)(((char *)page_address(page)) + offset); ++ if (le16_to_cpu(es->s_magic) == EXT2_SUPER_MAGIC) { ++// printk(KERN_ERR "D: has uuid " ++// "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n", ++// es->s_uuid[0], es->s_uuid[1], es->s_uuid[2], es->s_uuid[3], ++// es->s_uuid[4], es->s_uuid[5], es->s_uuid[6], es->s_uuid[7], ++// es->s_uuid[8], es->s_uuid[9], es->s_uuid[10], es->s_uuid[11], ++// es->s_uuid[12], es->s_uuid[13], es->s_uuid[14], es->s_uuid[15]); ++ if (!memcmp(es->s_uuid, root_dev_uuid, 16)) ++ rv = /* found */ 1; ++ } ++// else printk(KERN_ERR "D: bad ext2fs magic\n"); ++ out: ++ blkdev_put(bdev, FMODE_READ); ++ return (rv); ++} ++#endif /* CONFIG_EXT2_FS for UUID support */ ++ + static int __init load_ramdisk(char *str) + { + rd_doload = simple_strtol(str,NULL,0) & 3; +@@ -289,6 +416,13 @@ + static int __init root_dev_setup(char *line) + { + strlcpy(saved_root_name, line, sizeof(saved_root_name)); ++#ifdef CONFIG_EXT2_FS ++ root_dev_type = 0; ++ if (!strncmp(line, "UUID=", 5)) { ++ root_dev_type = 1; ++ parse_uuid(line + 5); ++ } ++#endif /* CONFIG_EXT2_FS for UUID support */ + return 1; + } + +@@ -505,6 +639,83 @@ + + void __init mount_root(void) + { ++#ifdef CONFIG_EXT2_FS ++ /* UUID support */ ++// printk_all_partitions(); ++ if (root_dev_type == 1) { ++ int blocksize; ++ ++ /* from block/genhd.c printk_all_partitions */ ++ struct class_dev_iter iter; ++ struct device *dev; ++ ++ /* from drivers/md/md.c */ ++ struct page *sb_page; ++ ++ if (!(sb_page = alloc_page(GFP_KERNEL))) { ++ printk(KERN_ERR "VFS: no memory for bio page\n"); ++ goto nomemforbio; ++ } ++ ++// printk(KERN_ERR "D: root is: " ++// "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n", ++// root_dev_uuid[0], root_dev_uuid[1], root_dev_uuid[2], root_dev_uuid[3], ++// root_dev_uuid[4], root_dev_uuid[5], root_dev_uuid[6], root_dev_uuid[7], ++// root_dev_uuid[8], root_dev_uuid[9], root_dev_uuid[10], root_dev_uuid[11], ++// root_dev_uuid[12], root_dev_uuid[13], root_dev_uuid[14], root_dev_uuid[15]); ++ /* from block/genhd.c printk_all_partitions */ ++// printk(KERN_ERR "D: begin iter\n"); ++ class_dev_iter_init(&iter, &block_class, NULL, &disk_type); ++ while (root_dev_type && (dev = class_dev_iter_next(&iter))) { ++// char bff[22]; ++ struct gendisk *disk = dev_to_disk(dev); ++ struct disk_part_iter piter; ++ struct hd_struct *part; ++ if (get_capacity(disk) == 0 || ++ (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO)) { ++// printk(KERN_ERR "D: ignoring\n"); ++ continue; ++ } ++ blocksize = queue_logical_block_size(disk->queue); ++// printk(KERN_ERR "D: gendisk, blocksize %d " ++// "name '%s' devt %08X %s #part %d\n", blocksize, ++// disk->disk_name, dev->devt, ++// format_dev_t(bff, dev->devt), ++// disk_max_parts(disk)); ++ disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0); ++ while (root_dev_type && (part = disk_part_iter_next(&piter))) { ++ /* avoid empty or too small partitions */ ++// printk(KERN_ERR "D: part #%d start %llu " ++// "nr %llu\n", part->partno, ++// (__u64)part->start_sect, ++// (__u64)part->nr_sects); ++ if (part->nr_sects < 8) ++ continue; ++ if (check_dev(disk, MKDEV(MAJOR(dev->devt), ++ MINOR(dev->devt) + part->partno), ++ blocksize, sb_page)) { ++ ROOT_DEV = part_devt(part); ++// printk(KERN_ERR "D: got match!\n"); ++ // comment out below for debugging ++ root_dev_type = 0; ++ } ++ } ++ disk_part_iter_exit(&piter); ++ } ++// printk(KERN_ERR "D: end iter\n"); ++ class_dev_iter_exit(&iter); ++ put_page(sb_page); ++ } ++ nomemforbio: ++ if (root_dev_type == 1) ++ printk(KERN_ERR "VFS: Unable to find root by UUID %s.\n", ++ saved_root_name + 5); ++ else if (root_dev_type == 3) ++ /* execute deferred panic from parse_uuid */ ++ panic("Badly formatted UUID %s was supplied as kernel " ++ "parameter root", saved_root_name + 5); ++#endif /* CONFIG_EXT2_FS for UUID support */ ++ + #ifdef CONFIG_ROOT_NFS + if (ROOT_DEV == Root_NFS) { + if (mount_nfs_root()) diff --git a/target/linux/patches/3.15-rc8/wlan-cf.patch b/target/linux/patches/3.15-rc8/wlan-cf.patch new file mode 100644 index 000000000..fc20759e2 --- /dev/null +++ b/target/linux/patches/3.15-rc8/wlan-cf.patch @@ -0,0 +1,11 @@ +diff -Nur linux-2.6.39.orig/drivers/net/wireless/hostap/hostap_cs.c linux-2.6.39/drivers/net/wireless/hostap/hostap_cs.c +--- linux-2.6.39.orig/drivers/net/wireless/hostap/hostap_cs.c 2011-05-19 06:06:34.000000000 +0200 ++++ linux-2.6.39/drivers/net/wireless/hostap/hostap_cs.c 2011-09-12 02:46:26.987984145 +0200 +@@ -623,6 +623,7 @@ + static struct pcmcia_device_id hostap_cs_ids[] = { + PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7100), + PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7300), ++ PCMCIA_DEVICE_MANF_CARD(0x0004, 0x2003), + PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0777), + PCMCIA_DEVICE_MANF_CARD(0x0126, 0x8000), + PCMCIA_DEVICE_MANF_CARD(0x0138, 0x0002), diff --git a/target/linux/patches/3.15-rc8/xargs.patch b/target/linux/patches/3.15-rc8/xargs.patch new file mode 100644 index 000000000..2c7b3df59 --- /dev/null +++ b/target/linux/patches/3.15-rc8/xargs.patch @@ -0,0 +1,12 @@ +diff -Nur linux-3.12.6.orig/scripts/Makefile.modpost linux-3.12.6/scripts/Makefile.modpost +--- linux-3.12.6.orig/scripts/Makefile.modpost 2013-12-20 16:51:33.000000000 +0100 ++++ linux-3.12.6/scripts/Makefile.modpost 2014-01-25 14:55:33.000000000 +0100 +@@ -60,7 +60,7 @@ + modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers + + # Step 1), find all modules listed in $(MODVERDIR)/ +-MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs -r grep -h '\.ko$$' | sort -u ++MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs grep -h '\.ko$$' | sort -u + __modules := $(shell $(MODLISTCMD)) + modules := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o))) + -- cgit v1.2.3