diff options
57 files changed, 3010 insertions, 2 deletions
@@ -317,6 +317,12 @@ ifeq ($(TARGET_ARCH),frv) UCLIBC_LDSO=ld.so.1 endif +ifeq ($(strip $(TARGET_ARCH)),avr32) + CPU_CFLAGS-$(CONFIG_AVR32_AP7) += -march=ap + CPU_CFLAGS-$(CONFIG_LINKRELAX) += -mrelax + CPU_LDFLAGS-$(CONFIG_LINKRELAX) += --relax +endif + # Keep the check_gcc from being needlessly executed ifndef PIEFLAG ifneq ($(UCLIBC_BUILD_PIE),y) diff --git a/extra/Configs/Config.avr32 b/extra/Configs/Config.avr32 new file mode 100644 index 000000000..0706e7ff9 --- /dev/null +++ b/extra/Configs/Config.avr32 @@ -0,0 +1,31 @@ +# +# For a description of the syntax of this configuration file, +# see extra/config/Kconfig-language.txt +# + +config TARGET_ARCH + string + default "avr32" + +config FORCE_OPTIONS_FOR_ARCH + bool + default y + select ARCH_BIG_ENDIAN + select FORCE_SHAREABLE_TEXT_SEGMENTS + +config ARCH_CFLAGS + string + +choice + prompt "Target CPU Type" + default CONFIG_AVR32_AP7 + +config CONFIG_AVR32_AP7 + bool "AVR32 AP7" + select ARCH_HAS_MMU + +endchoice + +config LINKRELAX + bool "Enable linker optimizations" + default y diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index cc23a98ad..eb5bf15f2 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -16,6 +16,9 @@ config TARGET_alpha config TARGET_arm bool "arm" +config TARGET_avr32 + bool "avr32" + config TARGET_bfin bool "bfin" @@ -92,6 +95,10 @@ if TARGET_arm source "extra/Configs/Config.arm" endif +if TARGET_avr32 +source "extra/Configs/Config.avr32" +endif + if TARGET_bfin source "extra/Configs/Config.bfin" endif diff --git a/extra/Configs/defconfigs/avr32 b/extra/Configs/defconfigs/avr32 new file mode 100644 index 000000000..0b890a291 --- /dev/null +++ b/extra/Configs/defconfigs/avr32 @@ -0,0 +1 @@ +TARGET_avr32=y diff --git a/include/elf.h b/include/elf.h index eb298292f..4611f3f29 100644 --- a/include/elf.h +++ b/include/elf.h @@ -354,6 +354,8 @@ typedef struct /* NIOS magic number - no EABI available. */ #define EM_NIOS32 0xFEBB +#define EM_AVR32 0x18ad + /* V850 backend magic number. Written in the absense of an ABI. */ #define EM_CYGNUS_V850 0x9080 @@ -2830,6 +2832,55 @@ typedef Elf32_Addr Elf32_Conflict; /* Keep this the last entry. */ #define R_V850_NUM 25 +/* Atmel AVR32 relocations. */ +#define R_AVR32_NONE 0 +#define R_AVR32_32 1 +#define R_AVR32_16 2 +#define R_AVR32_8 3 +#define R_AVR32_32_PCREL 4 +#define R_AVR32_16_PCREL 5 +#define R_AVR32_8_PCREL 6 +#define R_AVR32_DIFF32 7 +#define R_AVR32_DIFF16 8 +#define R_AVR32_DIFF8 9 +#define R_AVR32_GOT32 10 +#define R_AVR32_GOT16 11 +#define R_AVR32_GOT8 12 +#define R_AVR32_21S 13 +#define R_AVR32_16U 14 +#define R_AVR32_16S 15 +#define R_AVR32_8S 16 +#define R_AVR32_8S_EXT 17 +#define R_AVR32_22H_PCREL 18 +#define R_AVR32_18W_PCREL 19 +#define R_AVR32_16B_PCREL 20 +#define R_AVR32_16N_PCREL 21 +#define R_AVR32_14UW_PCREL 22 +#define R_AVR32_11H_PCREL 23 +#define R_AVR32_10UW_PCREL 24 +#define R_AVR32_9H_PCREL 25 +#define R_AVR32_9UW_PCREL 26 +#define R_AVR32_HI16 27 +#define R_AVR32_LO16 28 +#define R_AVR32_GOTPC 29 +#define R_AVR32_GOTCALL 30 +#define R_AVR32_LDA_GOT 31 +#define R_AVR32_GOT21S 32 +#define R_AVR32_GOT18SW 33 +#define R_AVR32_GOT16S 34 +#define R_AVR32_GOT7UW 35 +#define R_AVR32_32_CPENT 36 +#define R_AVR32_CPCALL 37 +#define R_AVR32_16_CP 38 +#define R_AVR32_9W_CP 39 +#define R_AVR32_RELATIVE 40 +#define R_AVR32_GLOB_DAT 41 +#define R_AVR32_JMP_SLOT 42 +#define R_AVR32_ALIGN 43 +#define R_AVR32_NUM 44 + +/* AVR32 dynamic tags */ +#define DT_AVR32_GOTSZ 0x70000001 /* Total size of GOT in bytes */ /* Renesas H8/300 Relocations */ #define R_H8_NONE 0 diff --git a/ldso/include/dl-string.h b/ldso/include/dl-string.h index 32c5bf83a..4a35a1c8d 100644 --- a/ldso/include/dl-string.h +++ b/ldso/include/dl-string.h @@ -285,7 +285,8 @@ static __always_inline char * _dl_simple_ltoahex(char * local, unsigned long i) /* On some arches constant strings are referenced through the GOT. * This requires that load_addr must already be defined... */ #if defined(mc68000) || defined(__arm__) || defined(__thumb__) || \ - defined(__mips__) || defined(__sh__) || defined(__powerpc__) + defined(__mips__) || defined(__sh__) || defined(__powerpc__) || \ + defined(__avr32__) # define CONSTANT_STRING_GOT_FIXUP(X) \ if ((X) < (const char *) load_addr) (X) += load_addr # define NO_EARLY_SEND_STDERR diff --git a/ldso/ldso/avr32/dl-debug.h b/ldso/ldso/avr32/dl-debug.h new file mode 100644 index 000000000..fe35539f6 --- /dev/null +++ b/ldso/ldso/avr32/dl-debug.h @@ -0,0 +1,45 @@ +/* + * AVR32 ELF shared libary loader support + * + * Copyright (C) 2005-2007 Atmel Corporation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. The name of the above contributors may not be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +static const char *_dl_reltypes_tab[] = { + "R_AVR32_NONE", + "R_AVR32_32", "R_AVR32_16", "R_AVR32_8", + "R_AVR32_32_PCREL", "R_AVR32_16_PCREL", "R_AVR32_8_PCREL", + "R_AVR32_DIFF32", "R_AVR32_DIFF16", "R_AVR32_DIFF8", + "R_AVR32_GOT32", "R_AVR32_GOT16", "R_AVR32_GOT8", + "R_AVR32_21S", "R_AVR32_16U", "R_AVR32_16S", "R_AVR32_8S", "R_AVR32_8S_EXT", + "R_AVR32_22H_PCREL", "R_AVR32_18W_PCREL", "R_AVR32_16B_PCREL", + "R_AVR32_16N_PCREL", "R_AVR32_14UW_PCREL", "R_AVR32_11H_PCREL", + "R_AVR32_10UW_PCREL", "R_AVR32_9H_PCREL", "R_AVR32_9UW_PCREL", + "R_AVR32_HI16", "R_AVR32_LO16", + "R_AVR32_GOTPC", "R_AVR32_GOTCALL", "R_AVR32_LDA_GOT", + "R_AVR32_GOT21S", "R_AVR32_GOT18SW", "R_AVR32_GOT16S", "R_AVR32_GOT7UW", + "R_AVR32_32_CPENT", "R_AVR32_CPCALL", "R_AVR32_16_CP", "R_AVR32_9W_CP", + "R_AVR32_RELATIVE", "R_AVR32_GLOB_DAT", "R_AVR32_JMP_SLOT", + "R_AVR32_ALIGN", +}; diff --git a/ldso/ldso/avr32/dl-startup.h b/ldso/ldso/avr32/dl-startup.h new file mode 100644 index 000000000..2280b2629 --- /dev/null +++ b/ldso/ldso/avr32/dl-startup.h @@ -0,0 +1,112 @@ +/* + * Architecture specific code used by dl-startup.c + * + * Copyright (C) 2005-2007 Atmel Corporation + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* This is the library loader's main entry point. Let _dl_boot2 do its + * initializations and jump to the application's entry point + * afterwards. */ +asm( " .text\n" + " .global _start\n" + " .type _start,@function\n" + "_start:\n" + /* All arguments are on the stack initially */ + " mov r12, sp\n" + " rcall _dl_start\n" + /* Returns user entry point in r12. Save it. */ + " mov r0, r12\n" + /* We're PIC, so get the Global Offset Table */ + " lddpc r6, .L_GOT\n" + ".L_RGOT:\n" + " rsub r6, pc\n" + /* Adjust argc and argv according to _dl_skip_args */ + " ld.w r1, r6[_dl_skip_args@got]\n" + " ld.w r1, r1[0]\n" + " ld.w r2, sp++\n" + " sub r2, r1\n" + " add sp, sp, r1 << 2\n" + " st.w --sp, r2\n" + /* Load the finalizer function */ + " ld.w r12, r6[_dl_fini@got]\n" + /* Jump to the user's entry point */ + " mov pc, r0\n\n" + + " .align 2\n" + ".L_GOT:" + " .long .L_RGOT - _GLOBAL_OFFSET_TABLE_\n" + " .size _start, . - _start\n" + " .previous\n"); + +/* Get a pointer to the argv array. On many platforms this can be just + * the address if the first argument, on other platforms we need to + * do something a little more subtle here. */ +#define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long *)ARGS + 1) + + +/* We can't call functions before the GOT has been initialized */ +#define NO_FUNCS_BEFORE_BOOTSTRAP + +/* + * Relocate the GOT during dynamic loader bootstrap. This will add + * the load address to all entries in the GOT, which is necessary + * because the linker doesn't generate R_AVR32_RELATIVE relocs for the + * GOT. + */ +static __always_inline +void PERFORM_BOOTSTRAP_GOT(struct elf_resolve *tpnt) +{ + Elf32_Addr i, nr_got; + register Elf32_Addr *__r6 __asm__("r6"); + Elf32_Addr *got = __r6; + + nr_got = tpnt->dynamic_info[DT_AVR32_GOTSZ_IDX] / sizeof(*got); + for (i = 2; i < nr_got; i++) + got[i] += tpnt->loadaddr; +} + +#define PERFORM_BOOTSTRAP_GOT(tpnt) PERFORM_BOOTSTRAP_GOT(tpnt) + +/* Handle relocation of the symbols in the dynamic loader. */ +static __always_inline +void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr, + unsigned long symbol_addr, + unsigned long load_addr, Elf32_Sym *symtab) +{ + switch(ELF32_R_TYPE(rpnt->r_info)) { + case R_AVR32_NONE: + break; + case R_AVR32_GLOB_DAT: + case R_AVR32_JMP_SLOT: + *reloc_addr = symbol_addr; + break; + case R_AVR32_RELATIVE: + SEND_STDERR_DEBUG("Applying RELATIVE relocation: "); + SEND_ADDRESS_STDERR_DEBUG(load_addr, 0); + SEND_STDERR_DEBUG(" + "); + SEND_ADDRESS_STDERR_DEBUG(rpnt->r_addend, 1); + *reloc_addr = load_addr + rpnt->r_addend; + break; + default: + SEND_STDERR("BOOTSTRAP_RELOC: unhandled reloc_type "); + SEND_NUMBER_STDERR(ELF32_R_TYPE(rpnt->r_info), 1); + SEND_STDERR("REL, SYMBOL, LOAD: "); + SEND_ADDRESS_STDERR(reloc_addr, 0); + SEND_STDERR(", "); + SEND_ADDRESS_STDERR(symbol_addr, 0); + SEND_STDERR(", "); + SEND_ADDRESS_STDERR(load_addr, 1); + _dl_exit(1); + } +} + +/* Transfer control to the user's application, once the dynamic loader + * is done. This routine has to exit the current function, then call + * the _dl_elf_main function. + * + * Since our _dl_boot will simply call whatever is returned by + * _dl_boot2, we can just return the address we're supposed to + * call. */ +#define START() return _dl_elf_main; diff --git a/ldso/ldso/avr32/dl-syscalls.h b/ldso/ldso/avr32/dl-syscalls.h new file mode 100644 index 000000000..996bb87c6 --- /dev/null +++ b/ldso/ldso/avr32/dl-syscalls.h @@ -0,0 +1,6 @@ +/* We can't use the real errno in ldso, since it has not yet + * been dynamicly linked in yet. */ +#include "sys/syscall.h" +extern int _dl_errno; +#undef __set_errno +#define __set_errno(X) {(_dl_errno) = (X);} diff --git a/ldso/ldso/avr32/dl-sysdep.h b/ldso/ldso/avr32/dl-sysdep.h new file mode 100644 index 000000000..270800ade --- /dev/null +++ b/ldso/ldso/avr32/dl-sysdep.h @@ -0,0 +1,105 @@ +/* + * Various assembly language/system dependent hacks that are required + * so that we can minimize the amount of platform specific code. + * + * Copyright (C) 2004-2007 Atmel Corporation + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Define this if the system uses RELOCA. */ +#define ELF_USES_RELOCA + +#include <elf.h> + +#define ARCH_NUM 1 +#define DT_AVR32_GOTSZ_IDX (DT_NUM + OS_NUM) + +#define ARCH_DYNAMIC_INFO(dpnt, dynamic, debug_addr) \ + do { \ + if (dpnt->d_tag == DT_AVR32_GOTSZ) \ + dynamic[DT_AVR32_GOTSZ_IDX] = dpnt->d_un.d_val; \ + } while (0) + +/* Initialization sequence for the application/library GOT. */ +#define INIT_GOT(GOT_BASE,MODULE) \ + do { \ + unsigned long i, nr_got; \ + \ + GOT_BASE[0] = (unsigned long) _dl_linux_resolve; \ + GOT_BASE[1] = (unsigned long) MODULE; \ + \ + /* Add load address displacement to all GOT entries */ \ + nr_got = MODULE->dynamic_info[DT_AVR32_GOTSZ_IDX] / 4; \ + for (i = 2; i < nr_got; i++) \ + GOT_BASE[i] += (unsigned long)MODULE->loadaddr; \ + } while (0) + +#define do_rem(result, n, base) ((result) = (n) % (base)) + +/* Here we define the magic numbers that this dynamic loader should accept */ +#define MAGIC1 EM_AVR32 +#undef MAGIC2 + +/* Used for error messages */ +#define ELF_TARGET "AVR32" + +unsigned long _dl_linux_resolver(unsigned long got_offset, unsigned long *got); + +/* 4096 bytes alignment */ +#define PAGE_ALIGN 0xfffff000 +#define ADDR_ALIGN 0xfff +#define OFFS_ALIGN 0x7ffff000 + +#define elf_machine_type_class(type) \ + ((type == R_AVR32_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) + +/* AVR32 doesn't need any COPY relocs */ +#define DL_NO_COPY_RELOCS + +/* Return the link-time address of _DYNAMIC. Conveniently, this is the + first element of the GOT. This must be inlined in a function which + uses global data. */ +static inline Elf32_Addr +elf_machine_dynamic (void) +{ + register Elf32_Addr *got asm ("r6"); + return *got; +} + +/* Return the run-time load address of the shared object. */ +static inline Elf32_Addr +elf_machine_load_address (void) +{ + extern void __dl_start asm("_dl_start"); + Elf32_Addr got_addr = (Elf32_Addr) &__dl_start; + Elf32_Addr pcrel_addr; + + asm (" lddpc %0, 2f\n" + "1: add %0, pc\n" + " rjmp 3f\n" + " .align 2\n" + "2: .long _dl_start - 1b\n" + "3:\n" + : "=r"(pcrel_addr) : : "cc"); + + return pcrel_addr - got_addr; +} + +/* + * Perform any RELATIVE relocations specified by DT_RELCOUNT. + * Currently, we don't use that tag, but we might in the future as + * this would reduce the startup time somewhat (although probably not by much). + */ +static inline void +elf_machine_relative (Elf32_Addr load_off, const Elf32_Addr rel_addr, + Elf32_Word relative_count) +{ + Elf32_Rela *rpnt = (void *)rel_addr; + + do { + Elf32_Addr *reloc_addr; + reloc_addr = (void *)(load_off + (rpnt++)->r_offset); + *reloc_addr = load_off + rpnt->r_addend; + } while (--relative_count); +} diff --git a/ldso/ldso/avr32/elfinterp.c b/ldso/ldso/avr32/elfinterp.c new file mode 100644 index 000000000..e236e4825 --- /dev/null +++ b/ldso/ldso/avr32/elfinterp.c @@ -0,0 +1,193 @@ +/* + * AVR32 ELF shared library loader suppport + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. The name of the above contributors may not be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +unsigned long _dl_linux_resolver(unsigned long got_offset, unsigned long *got) +{ + /* + * AVR32 currently does not do lazy relocation. + */ +#if 0 + struct elf_resolve *tpnt = (struct elf_resolve *)got[1]; + Elf32_Sym *sym; + unsigned long local_gotno; + unsigned long gotsym; + unsigned long new_addr; + char *strtab, *symname; + unsigned long *entry; + unsigned long sym_index = got_offset / 4; + + local_gotno = tpnt->dynamic_info[DT_AVR32_LOCAL_GOTNO]; + gotsym = tpnt->dynamic_info[DT_AVR32_GOTSYM]; + + sym = ((Elf32_Sym *)(tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr)) + + sym_index; + strtab = (char *)(tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr); + symname = strtab + sym->st_name; + + new_addr = (unsigned long) _dl_find_hash(strtab + sym->st_name, + tpnt->symbol_scope, tpnt, + resolver); + + entry = (unsigned long *)(got + local_gotno + sym_index - gotsym); + *entry = new_addr; + + return new_addr; +#endif + return 0; +} + +static int +_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope, + unsigned long rel_addr, unsigned long rel_size, + int (*reloc_func)(struct elf_resolve *tpnt, struct dyn_elf *scope, + Elf32_Rela *rpnt, Elf32_Sym *symtab, char *strtab)) +{ + Elf32_Sym *symtab; + Elf32_Rela *rpnt; + char *strtab; + int i; + + rpnt = (Elf32_Rela *)rel_addr; + rel_size /= sizeof(Elf32_Rela); + symtab = (Elf32_Sym *)tpnt->dynamic_info[DT_SYMTAB]; + strtab = (char *)tpnt->dynamic_info[DT_STRTAB]; + + for (i = 0; i < rel_size; i++, rpnt++) { + int symtab_index, res; + + symtab_index = ELF32_R_SYM(rpnt->r_info); + + debug_sym(symtab, strtab, symtab_index); + debug_reloc(symtab, strtab, rpnt); + + res = reloc_func(tpnt, scope, rpnt, symtab, strtab); + + if (res == 0) + continue; + + _dl_dprintf(2, "\n%s: ", _dl_progname); + + if (symtab_index) + _dl_dprintf(2, "symbol '%s': ", + strtab + symtab[symtab_index].st_name); + + if (res < 0) { + int reloc_type = ELF32_R_TYPE(rpnt->r_info); +#if defined(__SUPPORT_LD_DEBUG__) + _dl_dprintf(2, "can't handle reloc type %s\n", + _dl_reltypes(reloc_type)); +#else + _dl_dprintf(2, "can't handle reloc type %x\n", + reloc_type); +#endif + _dl_exit(-res); + } else { + _dl_dprintf(2, "can't resolve symbol\n"); + return res; + } + } + + return 0; +} + +static int _dl_do_reloc(struct elf_resolve *tpnt, struct dyn_elf *scope, + Elf32_Rela *rpnt, Elf32_Sym *symtab, char *strtab) +{ + int reloc_type; + int symtab_index; + char *symname; + unsigned long *reloc_addr; + unsigned long symbol_addr; +#if defined(__SUPPORT_LD_DEBUG__) + unsigned long old_val; +#endif + + reloc_addr = (unsigned long *)(tpnt->loadaddr + rpnt->r_offset); + reloc_type = ELF32_R_TYPE(rpnt->r_info); + symtab_index = ELF32_R_SYM(rpnt->r_info); + symbol_addr = 0; + symname = strtab + symtab[symtab_index].st_name; + + if (symtab_index) { + symbol_addr = (unsigned long) + _dl_find_hash(strtab + symtab[symtab_index].st_name, + tpnt->symbol_scope, tpnt, + elf_machine_type_class(reloc_type)); + + /* Allow undefined references to weak symbols */ + if (!symbol_addr && + ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) { + _dl_dprintf(2, "%s: can't resolve symbol '%s'\n", + _dl_progname, symname); + return 0; + } + } + +#if defined(__SUPPORT_LD_DEBUG__) + old_val = *reloc_addr; +#endif + switch (reloc_type) { + case R_AVR32_NONE: + break; + case R_AVR32_GLOB_DAT: + case R_AVR32_JMP_SLOT: + *reloc_addr = symbol_addr + rpnt->r_addend; + break; + case R_AVR32_RELATIVE: + *reloc_addr = (unsigned long)tpnt->loadaddr + + rpnt->r_addend; + break; + default: + return -1; + } + +#if defined(__SUPPORT_LD_DEBUG__) + if (_dl_debug_reloc && _dl_debug_detail) + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n", + old_val, *reloc_addr); +#endif + + return 0; +} + +void _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt, + unsigned long rel_addr, + unsigned long rel_size) +{ + /* TODO: Might want to support this in order to get faster + * startup times... */ +} + +int _dl_parse_relocation_information(struct dyn_elf *rpnt, + unsigned long rel_addr, + unsigned long rel_size) +{ + return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size, + _dl_do_reloc); +} diff --git a/ldso/ldso/avr32/resolve.S b/ldso/ldso/avr32/resolve.S new file mode 100644 index 000000000..ad90c2548 --- /dev/null +++ b/ldso/ldso/avr32/resolve.S @@ -0,0 +1,28 @@ +/* + * Linux dynamic resolving code for AVR32. Fixes up the GOT entry as + * indicated in register r12 and jumps to the resolved address. + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + * + * Copyright (C) 2004-2007 Atmel Corporation + */ + +#define ip r5 + + .text + .global _dl_linux_resolve + .type _dl_linux_resolve,@function +_dl_linux_resolve: + /* The PLT code pushed r8 for us. It contains the address of this + function's GOT entry, that is entry 0. ip contains the address + of the GOT entry of the function we wanted to call. */ + stm --sp, r9-r12, lr + mov r11, r8 + sub r12, ip, r8 + rcall _dl_linux_resolver + mov ip, r12 + popm r8-r12,lr + mov pc, ip + .size _dl_linux_resolve, . - _dl_linux_resolve diff --git a/ldso/ldso/dl-startup.c b/ldso/ldso/dl-startup.c index 5cf1d049e..d4294ec3a 100644 --- a/ldso/ldso/dl-startup.c +++ b/ldso/ldso/dl-startup.c @@ -217,7 +217,9 @@ DL_START(unsigned long args) /* some arches (like MIPS) we have to tweak the GOT before relocations */ PERFORM_BOOTSTRAP_GOT(tpnt); -#else +#endif + +#if !defined(PERFORM_BOOTSTRAP_GOT) || defined(__avr32__) /* OK, now do the relocations. We do not do a lazy binding here, so that once we are done, we have considerably more flexibility. */ diff --git a/libc/string/avr32/Makefile b/libc/string/avr32/Makefile new file mode 100644 index 000000000..0002ffdce --- /dev/null +++ b/libc/string/avr32/Makefile @@ -0,0 +1,26 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program 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 Library General Public License for more +# details. +# +# You should have received a copy of the GNU Library General Public License +# along with this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +top_srcdir := ../../../ +top_builddir := ../../../ + +all: objs + +include $(top_builddir)Rules.mak +include ../Makefile.in +include $(top_srcdir)Makerules diff --git a/libc/string/avr32/bcopy.S b/libc/string/avr32/bcopy.S new file mode 100644 index 000000000..193919084 --- /dev/null +++ b/libc/string/avr32/bcopy.S @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <features.h> + +#ifdef __UCLIBC_SUSV3_LEGACY__ + + .text + .global bcopy + .type bcopy, @function + .align 1 +bcopy: + /* Swap the first two arguments */ + eor r11, r12 + eor r12, r11 + eor r11, r12 + rjmp __GI_memmove + + .size bcopy, . - bcopy + +#endif /* __UCLIBC_SUSV3_LEGACY__ */ diff --git a/libc/string/avr32/bzero.S b/libc/string/avr32/bzero.S new file mode 100644 index 000000000..6ced0cbb1 --- /dev/null +++ b/libc/string/avr32/bzero.S @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#ifdef __UCLIBC_SUSV3_LEGACY__ + + .text + .global bzero + .type bzero, @function + .align 1 +bzero: + mov r10, r11 + mov r11, 0 + rjmp __memset + + .size bzero, . - bzero + +#endif /* __UCLIBC_SUSV3_LEGACY__ */ diff --git a/libc/string/avr32/memcmp.S b/libc/string/avr32/memcmp.S new file mode 100644 index 000000000..5d7eac3d9 --- /dev/null +++ b/libc/string/avr32/memcmp.S @@ -0,0 +1,61 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <features.h> + +#define s1 r12 +#define s2 r11 +#define len r10 + + .text + .global memcmp + .type memcmp, @function + .align 1 +memcmp: + sub len, 4 + brlt .Lless_than_4 + +1: ld.w r8, s1++ + ld.w r9, s2++ + cp.w r8, r9 + brne .Lfound_word + sub len, 4 + brge 1b + +.Lless_than_4: + sub len, -4 + reteq 0 + +1: ld.ub r8, s1++ + ld.ub r9, s2++ + sub r8, r9 + retne r8 + sub len, 1 + brgt 1b + + retal 0 + +.Lfound_word: + mov len, 4 + +2: bfextu r11, r9, 24, 8 + bfextu r12, r8, 24, 8 + sub r12, r11 + retne r12 + lsl r8, 8 + lsl r9, 8 + sub len, 1 + brne 2b + retal r12 + + .size memcmp, . - memcmp + +libc_hidden_def(memcmp) +#ifdef __UCLIBC_SUSV3_LEGACY__ +strong_alias(memcmp,bcmp) +#endif diff --git a/libc/string/avr32/memcpy.S b/libc/string/avr32/memcpy.S new file mode 100644 index 000000000..f95aabd13 --- /dev/null +++ b/libc/string/avr32/memcpy.S @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +/* Don't use r12 as dst since we must return it unmodified */ +#define dst r9 +#define src r11 +#define len r10 + + .text + .global memcpy + .type memcpy, @function +memcpy: + pref src[0] + mov dst, r12 + + /* If we have less than 32 bytes, don't do anything fancy */ + cp.w len, 32 + brge .Lmore_than_31 + + sub len, 1 + retlt r12 +1: ld.ub r8, src++ + st.b dst++, r8 + sub len, 1 + brge 1b + retal r12 + +.Lmore_than_31: + pushm r0-r7, lr + + /* Check alignment */ + mov r8, src + andl r8, 31, COH + brne .Lunaligned_src + mov r8, dst + andl r8, 3, COH + brne .Lunaligned_dst + +.Laligned_copy: + sub len, 32 + brlt .Lless_than_32 + +1: /* Copy 32 bytes at a time */ + ldm src, r0-r7 + sub src, -32 + stm dst, r0-r7 + sub dst, -32 + sub len, 32 + brge 1b + +.Lless_than_32: + /* Copy 16 more bytes if possible */ + sub len, -16 + brlt .Lless_than_16 + ldm src, r0-r3 + sub src, -16 + sub len, 16 + stm dst, r0-r3 + sub dst, -16 + +.Lless_than_16: + /* Do the remaining as byte copies */ + neg len + add pc, pc, len << 2 + .rept 15 + ld.ub r0, src++ + st.b dst++, r0 + .endr + + popm r0-r7, pc + +.Lunaligned_src: + /* Make src cacheline-aligned. r8 = (src & 31) */ + rsub r8, r8, 32 + sub len, r8 +1: ld.ub r0, src++ + st.b dst++, r0 + sub r8, 1 + brne 1b + + /* If dst is word-aligned, we're ready to go */ + pref src[0] + mov r8, 3 + tst dst, r8 + breq .Laligned_copy + +.Lunaligned_dst: + /* src is aligned, but dst is not. Expect bad performance */ + sub len, 4 + brlt 2f +1: ld.w r0, src++ + st.w dst++, r0 + sub len, 4 + brge 1b + +2: neg len + add pc, pc, len << 2 + .rept 3 + ld.ub r0, src++ + st.b dst++, r0 + .endr + + popm r0-r7, pc + .size memcpy, . - memcpy + +libc_hidden_def(memcpy) diff --git a/libc/string/avr32/memmove.S b/libc/string/avr32/memmove.S new file mode 100644 index 000000000..659cdd199 --- /dev/null +++ b/libc/string/avr32/memmove.S @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#define dst r12 +#define src r11 +#define len r10 + + .text + .global memmove + .type memmove, @function +memmove: + cp.w src, dst + brge __GI_memcpy + + add dst, len + add src, len + pref src[-1] + + /* + * The rest is basically the same as in memcpy.S except that + * the direction is reversed. + */ + cp.w len, 32 + brge .Lmore_than_31 + + sub len, 1 + retlt r12 +1: ld.ub r8, --src + st.b --dst, r8 + sub len, 1 + brge 1b + retal r12 + +.Lmore_than_31: + pushm r0-r7, lr + + /* Check alignment */ + mov r8, src + andl r8, 31, COH + brne .Lunaligned_src + mov r8, r12 + andl r8, 3, COH + brne .Lunaligned_dst + +.Laligned_copy: + sub len, 32 + brlt .Lless_than_32 + +1: /* Copy 32 bytes at a time */ + sub src, 32 + ldm src, r0-r7 + sub dst, 32 + sub len, 32 + stm dst, r0-r7 + brge 1b + +.Lless_than_32: + /* Copy 16 more bytes if possible */ + sub len, -16 + brlt .Lless_than_16 + sub src, 16 + ldm src, r0-r3 + sub dst, 16 + sub len, 16 + stm dst, r0-r3 + +.Lless_than_16: + /* Do the remaining as byte copies */ + sub len, -16 + breq 2f +1: ld.ub r0, --src + st.b --dst, r0 + sub len, 1 + brne 1b + +2: popm r0-r7, pc + +.Lunaligned_src: + /* Make src cacheline-aligned. r8 = (src & 31) */ + sub len, r8 +1: ld.ub r0, --src + st.b --dst, r0 + sub r8, 1 + brne 1b + + /* If dst is word-aligned, we're ready to go */ + pref src[-4] + mov r8, 3 + tst dst, r8 + breq .Laligned_copy + +.Lunaligned_dst: + /* src is aligned, but dst is not. Expect bad performance */ + sub len, 4 + brlt 2f +1: ld.w r0, --src + st.w --dst, r0 + sub len, 4 + brge 1b + +2: neg len + add pc, pc, len << 2 + .rept 3 + ld.ub r0, --src + st.b --dst, r0 + .endr + + popm r0-r7, pc + .size memmove, . - memmove + +libc_hidden_def(memmove) diff --git a/libc/string/avr32/memset.S b/libc/string/avr32/memset.S new file mode 100644 index 000000000..ca5b53a1a --- /dev/null +++ b/libc/string/avr32/memset.S @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <features.h> + +#define s r12 +#define c r11 +#define n r10 + + .text + .global memset + .type memset, @function + + .global __memset + .hidden __memset + .type __memset, @function + + .align 1 +memset: +__memset: + cp.w n, 32 + mov r9, s + brge .Llarge_memset + + sub n, 1 + retlt s +1: st.b s++, c + sub n, 1 + brge 1b + + retal r9 + +.Llarge_memset: + mov r8, r11 + mov r11, 3 + bfins r8, r8, 8, 8 + bfins r8, r8, 16, 16 + tst s, r11 + breq 2f + +1: st.b s++, r8 + sub n, 1 + tst s, r11 + brne 1b + +2: mov r11, r9 + mov r9, r8 + sub n, 8 + +3: st.d s++, r8 + sub n, 8 + brge 3b + + /* If we are done, n == -8 and we'll skip all st.b insns below */ + neg n + lsl n, 1 + add pc, n + .rept 7 + st.b s++, r8 + .endr + retal r11 + + .size memset, . - memset + +libc_hidden_def(memset) diff --git a/libc/string/avr32/strcmp.S b/libc/string/avr32/strcmp.S new file mode 100644 index 000000000..e9f087577 --- /dev/null +++ b/libc/string/avr32/strcmp.S @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <features.h> + +#define s1 r12 +#define s2 r11 +#define len r10 + + .text + .global strcmp + .type strcmp, @function + .align 1 +strcmp: + mov r8, 3 + tst s1, r8 + brne .Lunaligned_s1 + tst s2, r8 + brne .Lunaligned_s2 + +1: ld.w r8, s1++ + ld.w r9, s2++ + cp.w r8, r9 + brne 2f + tnbz r8 + brne 1b + retal 0 + +2: bfextu r12, r8, 24, 8 + bfextu r11, r9, 24, 8 + sub r12, r11 + retne r12 + cp.w r11, 0 + reteq 0 + bfextu r12, r8, 16, 8 + bfextu r11, r9, 16, 8 + sub r12, r11 + retne r12 + cp.w r11, 0 + reteq 0 + bfextu r12, r8, 8, 8 + bfextu r11, r9, 8, 8 + sub r12, r11 + retne r12 + cp.w r11, 0 + reteq 0 + bfextu r12, r8, 0, 8 + bfextu r11, r9, 0, 8 + sub r12, r11 + retal r12 + +.Lunaligned_s1: +3: tst s1, r8 + breq 4f + ld.ub r10, s1++ + ld.ub r9, s2++ + sub r10, r9 + retne r10 + cp.w r9, 0 + brne 3b + retal r10 + +4: tst s2, r8 + breq 1b + +.Lunaligned_s2: + /* + * s1 and s2 can't both be aligned, and unaligned word loads + * can trigger spurious exceptions if we cross a page boundary. + * Do it the slow way... + */ +1: ld.ub r8, s1++ + ld.ub r9, s2++ + sub r8, r9 + retne r8 + cp.w r9, 0 + brne 1b + retal 0 + + .size strcmp, . - strcmp + +libc_hidden_def(strcmp) +#ifndef __UCLIBC_HAS_LOCALE__ +strong_alias(strcmp, strcoll) +libc_hidden_def(strcoll) +#endif diff --git a/libc/string/avr32/strlen.S b/libc/string/avr32/strlen.S new file mode 100644 index 000000000..d2808998d --- /dev/null +++ b/libc/string/avr32/strlen.S @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <features.h> + +#define str r12 + + .text + .global strlen + .type strlen, @function +strlen: + mov r11, r12 + + mov r9, str + andl r9, 3, COH + brne .Lunaligned_str + +1: ld.w r8, str++ + tnbz r8 + brne 1b + + sub r12, r11 + bfextu r9, r8, 24, 8 + cp.w r9, 0 + subeq r12, 4 + reteq r12 + bfextu r9, r8, 16, 8 + cp.w r9, 0 + subeq r12, 3 + reteq r12 + bfextu r9, r8, 8, 8 + cp.w r9, 0 + subeq r12, 2 + reteq r12 + sub r12, 1 + retal r12 + +.Lunaligned_str: + add pc, pc, r9 << 3 + sub r0, r0, 0 /* 4-byte nop */ + ld.ub r8, str++ + sub r8, r8, 0 + breq 1f + ld.ub r8, str++ + sub r8, r8, 0 + breq 1f + ld.ub r8, str++ + sub r8, r8, 0 + brne 1b + +1: sub r12, 1 + sub r12, r11 + retal r12 + + .size strlen, . - strlen + +libc_hidden_def(strlen) diff --git a/libc/sysdeps/linux/avr32/Makefile b/libc/sysdeps/linux/avr32/Makefile new file mode 100644 index 000000000..338abc086 --- /dev/null +++ b/libc/sysdeps/linux/avr32/Makefile @@ -0,0 +1,25 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org> +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program 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 Library General Public License for more +# details. +# +# You should have received a copy of the GNU Library General Public License +# along with this program; if not, write to the Free Software Foundation, Inc., +# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs + +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/avr32/Makefile.arch b/libc/sysdeps/linux/avr32/Makefile.arch new file mode 100644 index 000000000..c71c3ce56 --- /dev/null +++ b/libc/sysdeps/linux/avr32/Makefile.arch @@ -0,0 +1,13 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +CSRC := brk.c clone.c mmap.c sigaction.c + +SSRC := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ + sigrestorer.S syscall.S vfork.S + +include $(top_srcdir)/libc/sysdeps/linux/Makefile.commonarch diff --git a/libc/sysdeps/linux/avr32/__longjmp.S b/libc/sysdeps/linux/avr32/__longjmp.S new file mode 100644 index 000000000..245611a46 --- /dev/null +++ b/libc/sysdeps/linux/avr32/__longjmp.S @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + + .global __longjmp + .type __longjmp,"function" + .align 1 +__longjmp: + ldm r12++, r0-r8,sp,lr + mustr r8 /* restore status register (lower half) */ + cp r11, 0 /* can't return zero */ + frs + moveq r11, 1 + retal r11 + .size __longjmp, . - __longjmp + +libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/avr32/bits/atomic.h b/libc/sysdeps/linux/avr32/bits/atomic.h new file mode 100644 index 000000000..4f870c023 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/atomic.h @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#ifndef _AVR32_BITS_ATOMIC_H +#define _AVR32_BITS_ATOMIC_H 1 + +#include <inttypes.h> + +typedef int32_t atomic32_t; +typedef uint32_t uatomic32_t; +typedef int_fast32_t atomic_fast32_t; +typedef uint_fast32_t uatomic_fast32_t; + +typedef intptr_t atomicptr_t; +typedef uintptr_t uatomicptr_t; +typedef intmax_t atomic_max_t; +typedef uintmax_t uatomic_max_t; + +#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \ + (abort(), 0) + +#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \ + (abort(), 0) + +#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ + ({ \ + __typeof__(*(mem)) __prev; \ + __asm__ __volatile__( \ + "/* __arch_compare_and_exchange_val_32_acq */\n" \ + "1: ssrf 5\n" \ + " ld.w %[result], %[m]\n" \ + " cp.w %[result], %[old]\n" \ + " brne 2f\n" \ + " stcond %[m], %[new]\n" \ + " brne 1b\n" \ + "2:" \ + : [result] "=&r"(__result), [m] "=m"(*(mem)) \ + : "m"(*(mem)), [old] "ir"(oldval), \ + [new] "r"(newval) \ + : "memory", "cc"); \ + __prev; \ + }) + +#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ + (abort(), 0) + +#define __arch_exchange_32_acq(mem, newval) \ + ({ \ + __typeof__(*(mem)) __oldval; \ + __asm__ __volatile__( \ + "/*__arch_exchange_32_acq */\n" \ + " xchg %[old], %[m], %[new]" \ + : [old] "=&r"(__oldval) \ + : [m] "r"(mem), [new] "r"(newval) \ + : "memory"); \ + __oldval; \ + }) + +#define __arch_atomic_exchange_and_add_32(mem, value) \ + ({ \ + __typeof__(*(mem)) __oldval, __tmp; \ + __asm__ __volatile__( \ + "/* __arch_atomic_exchange_and_add_32 */\n" \ + "1: ssrf 5\n" \ + " ld.w %[old], %[m]\n" \ + " add %[tmp], %[old], %[val]\n" \ + " stcond %[m], %[tmp]\n" \ + " brne 1b" \ + : [old] "=&r"(__oldval), [tmp] "=&r"(__tmp), \ + [m] "=m"(*(mem)) \ + : "m"(*(mem)), [val] "r"(value) \ + : "memory", "cc"); \ + __oldval; \ + }) + +#define __arch_atomic_decrement_if_positive_32(mem) \ + ({ \ + __typeof__(*(mem)) __oldval, __tmp; \ + __asm__ __volatile__( \ + "/* __arch_atomic_decrement_if_positive_32 */\n" \ + "1: ssrf 5\n" \ + " ld.w %[old], %[m]\n" \ + " sub %[tmp], %[old], 1\n" \ + " brlt 2f\n" \ + " stcond %[m], %[tmp]\n" \ + " brne 1b" \ + "2:" \ + : [old] "=&r"(__oldval), [tmp] "=&r"(__tmp), \ + [m] "=m"(*(mem)) \ + : "m"(*(mem)) \ + : "memory", "cc"); \ + __oldval; \ + }) + +#define atomic_exchange_acq(mem, newval) \ + ({ \ + if (sizeof(*(mem)) != 4) \ + abort(); \ + __arch_exchange_32_acq(mem, newval); \ + }) + +#define atomic_exchange_and_add(mem, newval) \ + ({ \ + if (sizeof(*(mem)) != 4) \ + abort(); \ + __arch_atomic_exchange_and_add_32(mem, newval); \ + }) + +#define atomic_decrement_if_positive(mem) \ + ({ \ + if (sizeof(*(mem)) != 4) \ + abort(); \ + __arch_atomic_decrement_if_positive_32(mem); \ + }) + +#endif /* _AVR32_BITS_ATOMIC_H */ diff --git a/libc/sysdeps/linux/avr32/bits/byteswap.h b/libc/sysdeps/linux/avr32/bits/byteswap.h new file mode 100644 index 000000000..59e96320f --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/byteswap.h @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2005 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#if !defined _BYTESWAP_H && !defined _NETINET_IN_H +# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." +#endif + +#ifndef _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +/* Swap bytes in 16 bit value. */ +#if defined __GNUC__ +# define __bswap_16(x) (__extension__ __builtin_bswap_16(x)) +#else +/* This is better than nothing. */ +static __inline unsigned short int +__bswap_16 (unsigned short int __bsx) +{ + return ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8)); +} +#endif + +/* Swap bytes in 32 bit value. */ +#if defined __GNUC__ +# define __bswap_32(x) (__extension__ __builtin_bswap_32(x)) +#else +static __inline unsigned int +__bswap_32 (unsigned int __bsx) +{ + return ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >> 8) | + (((__bsx) & 0x0000ff00) << 8) | (((__bsx) & 0x000000ff) << 24)); +} +#endif + +#if defined __GNUC__ +/* Swap bytes in 64 bit value. */ +# define __bswap_constant_64(x) \ + ((((x) & 0xff00000000000000ull) >> 56) \ + | (((x) & 0x00ff000000000000ull) >> 40) \ + | (((x) & 0x0000ff0000000000ull) >> 24) \ + | (((x) & 0x000000ff00000000ull) >> 8) \ + | (((x) & 0x00000000ff000000ull) << 8) \ + | (((x) & 0x0000000000ff0000ull) << 24) \ + | (((x) & 0x000000000000ff00ull) << 40) \ + | (((x) & 0x00000000000000ffull) << 56)) + +# define __bswap_64(x) \ + (__extension__ \ + ({ \ + union { \ + __extension__ unsigned long long int __ll; \ + unsigned int __l[2]; \ + } __w, __r; \ + if (__builtin_constant_p(x)) \ + __r.__ll = __bswap_constant_64(x); \ + else { \ + __w.__ll = (x); \ + __r.__l[0] = __bswap_32(__w.__l[1]); \ + __r.__l[1] = __bswap_32(__w.__l[0]); \ + } \ + __r.__ll; \ + })) +#endif + +#endif /* _BITS_BYTESWAP_H */ diff --git a/libc/sysdeps/linux/avr32/bits/endian.h b/libc/sysdeps/linux/avr32/bits/endian.h new file mode 100644 index 000000000..7bb63585d --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/endian.h @@ -0,0 +1,7 @@ +/* AVR32 is big-endian */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#define __BYTE_ORDER __BIG_ENDIAN diff --git a/libc/sysdeps/linux/avr32/bits/fcntl.h b/libc/sysdeps/linux/avr32/bits/fcntl.h new file mode 100644 index 000000000..b45dd2c4c --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/fcntl.h @@ -0,0 +1,165 @@ +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + +#include <sys/types.h> + +/* + * open/fcntl - O_SYNC is only implemented on blocks devices and on files + * located on an ext2 file system + */ +#define O_ACCMODE 00000003 +#define O_RDONLY 00000000 +#define O_WRONLY 00000001 +#define O_RDWR 00000002 +#define O_CREAT 00000100 /* not fcntl */ +#define O_EXCL 00000200 /* not fcntl */ +#define O_NOCTTY 00000400 /* not fcntl */ +#define O_TRUNC 00001000 /* not fcntl */ +#define O_APPEND 00002000 +#define O_NONBLOCK 00004000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 00010000 +#define O_ASYNC 00020000 + +#ifdef __USE_GNU +# define O_DIRECT 00040000 /* must be a directory */ +# define O_DIRECTORY 00200000 /* direct disk access */ +# define O_NOFOLLOW 00400000 /* don't follow links */ +# define O_NOATIME 01000000 /* don't set atime */ +#endif + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 00100000 +#endif + +/* For now Linux has synchronisity options for data and read operations. + We define the symbols here but let them do the same as O_SYNC since + this is a superset. */ +#if defined __USE_POSIX199309 || defined __USE_UNIX98 +# define O_DSYNC O_SYNC /* Synchronize data. */ +# define O_RSYNC O_SYNC /* Synchronize read operations. */ +#endif + +#define F_DUPFD 0 /* dup */ +#define F_GETFD 1 /* get close_on_exec */ +#define F_SETFD 2 /* set/clear close_on_exec */ +#define F_GETFL 3 /* get file->f_flags */ +#define F_SETFL 4 /* set file->f_flags */ + +#ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 +# define F_SETLK 6 +# define F_SETLKW 7 +#else +# define F_GETLK F_GETLK64 +# define F_SETLK F_SETLK64 +# define F_SETLKW F_SETLKW64 +#endif +#define F_GETLK64 12 /* using 'struct flock64' */ +#define F_SETLK64 13 +#define F_SETLKW64 14 + +#if defined __USE_BSD || defined __USE_XOPEN2K +# define F_SETOWN 8 /* for sockets. */ +# define F_GETOWN 9 /* for sockets. */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* for sockets. */ +# define F_GETSIG 11 /* for sockets. */ +#endif + +#ifdef __USE_GNU +# define F_SETLEASE 1024 /* Set a lease. */ +# define F_GETLEASE 1025 /* Enquire what lease is active. */ +# define F_NOTIFY 1026 /* Request notfications on a directory. */ +#endif + +/* for F_[GET|SET]FL */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* for posix fcntl() and lockf() */ +#define F_RDLCK 0 +#define F_WRLCK 1 +#define F_UNLCK 2 + +/* for old implementation of bsd flock () */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +/* for leases */ +#define F_INPROGRESS 16 + +#ifdef __USE_BSD +/* operations for bsd flock(), also used by the kernel implementation */ +# define LOCK_SH 1 /* shared lock */ +# define LOCK_EX 2 /* exclusive lock */ +# define LOCK_NB 4 /* or'd with one of the above to prevent + blocking */ +# define LOCK_UN 8 /* remove lock */ +#endif + +#ifdef __USE_GNU +# define LOCK_MAND 32 /* This is a mandatory flock */ +# define LOCK_READ 64 /* ... Which allows concurrent + read operations */ +# define LOCK_WRITE 128 /* ... Which allows concurrent + write operations */ +# define LOCK_RW 192 /* ... Which allows concurrent + read & write ops */ +#endif + +#ifdef __USE_GNU +/* Types of directory notifications that may be requested with F_NOTIFY. */ +# define DN_ACCESS 0x00000001 /* File accessed. */ +# define DN_MODIFY 0x00000002 /* File modified. */ +# define DN_CREATE 0x00000004 /* File created. */ +# define DN_DELETE 0x00000008 /* File removed. */ +# define DN_RENAME 0x00000010 /* File renamed. */ +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */ +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */ +#endif + +struct flock { + short l_type; + short l_whence; +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; + __off_t l_len; +#else + __off64_t l_start; + __off64_t l_len; +#endif + __pid_t l_pid; +}; + +#ifdef __USE_LARGEFILE64 +struct flock64 { + short l_type; + short l_whence; + __off64_t l_start; + __off64_t l_len; + __pid_t l_pid; +}; +#endif + +/* Define some more compatibility macros to be backward compatible with + * BSD systems which did not managed to hide these kernel macros. */ +#ifdef __USE_BSD +# define FAPPEND O_APPEND +# define FFSYNC O_FSYNC +# define FASYNC O_ASYNC +# define FNONBLOCK O_NONBLOCK +# define FNDELAY O_NDELAY +#endif /* Use BSD. */ + +/* Advise to `posix_fadvise'. */ +#ifdef __USE_XOPEN2K +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */ +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */ +#endif diff --git a/libc/sysdeps/linux/avr32/bits/kernel_stat.h b/libc/sysdeps/linux/avr32/bits/kernel_stat.h new file mode 100644 index 000000000..e5cc813c4 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/kernel_stat.h @@ -0,0 +1,67 @@ +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +#ifndef _LIBC +#error bits/kernel_stat.h is for internal uClibc use only! +#endif + +/* + * This file provides struct stat, taken from kernel 2.6.4. Verified + * to match kernel 2.6.22. + */ + +struct kernel_stat { + unsigned long st_dev; + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned long st_rdev; + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + unsigned long st_atime; + unsigned long st_atime_nsec; + unsigned long st_mtime; + unsigned long st_mtime_nsec; + unsigned long st_ctime; + unsigned long st_ctime_nsec; + unsigned long __unused4; + unsigned long __unused5; +}; + +#define STAT_HAVE_NSEC 1 + +struct kernel_stat64 { + unsigned long long st_dev; + + unsigned long long st_ino; + unsigned int st_mode; + unsigned int st_nlink; + + unsigned long st_uid; + unsigned long st_gid; + + unsigned long long st_rdev; + + long long st_size; + unsigned long __pad1; + unsigned long st_blksize; + + unsigned long long st_blocks; + + unsigned long st_atime; + unsigned long st_atime_nsec; + + unsigned long st_mtime; + unsigned long st_mtime_nsec; + + unsigned long st_ctime; + unsigned long st_ctime_nsec; + + unsigned long __unused1; + unsigned long __unused2; +}; + +#endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/avr32/bits/kernel_types.h b/libc/sysdeps/linux/avr32/bits/kernel_types.h new file mode 100644 index 000000000..159a440b2 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/kernel_types.h @@ -0,0 +1,55 @@ +/* Note that we use the exact same include guard #define names + * as asm/posix_types.h. This will avoid gratuitous conflicts + * with the posix_types.h kernel header, and will ensure that + * our private content, and not the kernel header, will win. + * -Erik + */ +#ifndef __ASM_AVR32_POSIX_TYPES_H +#define __ASM_AVR32_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned long __kernel_dev_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned int __kernel_uid_t; +typedef unsigned int __kernel_gid_t; +typedef unsigned long __kernel_size_t; +typedef long __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_timer_t; +typedef int __kernel_clockid_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef unsigned short __kernel_old_dev_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { +#if defined(__USE_ALL) + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __ASM_AVR32_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/avr32/bits/mman.h b/libc/sysdeps/linux/avr32/bits/mman.h new file mode 100644 index 000000000..be5837a7c --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/mman.h @@ -0,0 +1,103 @@ +/* Definitions for POSIX memory map interface. Linux/AVR32 version. + Copyright (C) 1997, 2000 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 _SYS_MMAN_H +# error "Never include this file directly. Use <sys/mman.h> instead" +#endif + +/* The following definitions basically come from the kernel headers. + But the kernel header is not namespace clean. */ + + +/* Protections are chosen from these bits, OR'd together. The + implementation does not necessarily support PROT_EXEC or PROT_WRITE + without PROT_READ. The only guarantees are that no writing will be + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ + +#define PROT_READ 0x1 /* Page can be read. */ +#define PROT_WRITE 0x2 /* Page can be written. */ +#define PROT_EXEC 0x4 /* Page can be executed. */ +#define PROT_NONE 0x0 /* Page can not be accessed. */ +#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of + growsdown vma (mprotect only). */ +#define PROT_GROWSUP 0x02000000 /* Extend change to start of + growsup vma (mprotect only). */ + +/* Sharing types (must choose one and only one of these). */ +#define MAP_SHARED 0x01 /* Share changes. */ +#define MAP_PRIVATE 0x02 /* Changes are private. */ +#ifdef __USE_MISC +# define MAP_TYPE 0x0f /* Mask for type of mapping. */ +#endif + +/* Other flags. */ +#define MAP_FIXED 0x10 /* Interpret addr exactly. */ +#ifdef __USE_MISC +# define MAP_FILE 0 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +#endif + +/* These are Linux-specific. */ +#ifdef __USE_MISC +# define MAP_GROWSDOWN 0x0100 /* Stack-like segment. */ +# define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +# define MAP_EXECUTABLE 0x1000 /* Mark it as an executable. */ +# define MAP_LOCKED 0x2000 /* Lock the mapping. */ +# define MAP_NORESERVE 0x4000 /* Don't check for reservations. */ +# define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ +# define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ + +/* Flags for `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +# define MREMAP_FIXED 2 +#endif + +/* Advise to `madvise'. */ +#ifdef __USE_BSD +# define MADV_NORMAL 0 /* No further special treatment. */ +# define MADV_RANDOM 1 /* Expect random page references. */ +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define MADV_WILLNEED 3 /* Will need these pages. */ +# define MADV_DONTNEED 4 /* Don't need these pages. */ +# define MADV_REMOVE 9 /* Remove these pages and resources. */ +# define MADV_DONTFORK 10 /* Do not inherit across fork. */ +# define MADV_DOFORK 11 /* Do inherit across fork. */ +#endif + +/* The POSIX people had to invent similar names for the same things. */ +#ifdef __USE_XOPEN2K +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */ +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */ +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */ +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */ +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */ +#endif diff --git a/libc/sysdeps/linux/avr32/bits/setjmp.h b/libc/sysdeps/linux/avr32/bits/setjmp.h new file mode 100644 index 000000000..733a473d1 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/setjmp.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2004-2005 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#if !defined _SETJMP_H && !defined _PTHREAD_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +/* + * The jump buffer contains r0-r7, sr, sp and lr. Other registers are + * not saved. + */ +typedef int __jmp_buf[11]; +#endif + +#define __JMP_BUF_SP 4 + +/* Test if longjmp to JMPBUF would unwind the frame containing a local + variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *)(address) < (void *)(jmpbuf[__JMP_BUF_SP])) + +#endif /* _BITS_SETJMP_H */ diff --git a/libc/sysdeps/linux/avr32/bits/stackinfo.h b/libc/sysdeps/linux/avr32/bits/stackinfo.h new file mode 100644 index 000000000..3723e2448 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/stackinfo.h @@ -0,0 +1,28 @@ +/* Copyright (C) 1999 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. */ + +/* This file contains a bit of information about the stack allocation + of the processor. */ + +#ifndef _STACKINFO_H +#define _STACKINFO_H 1 + +/* On AVR32 the stack grows down. */ +#define _STACK_GROWS_DOWN 1 + +#endif /* stackinfo.h */ diff --git a/libc/sysdeps/linux/avr32/bits/syscalls.h b/libc/sysdeps/linux/avr32/bits/syscalls.h new file mode 100644 index 000000000..b58ca0b4b --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/syscalls.h @@ -0,0 +1,143 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +/* + * This includes the `__NR_<name>' syscall numbers taken from the + * Linux kernel header files. It also defines the traditional + * `SYS_<name>' macros for older programs. + */ +#include <bits/sysnum.h> + +#ifndef __ASSEMBLER__ + +#include <errno.h> + +#define SYS_ify(syscall_name) (__NR_##syscall_name) + +#undef _syscall0 +#define _syscall0(type,name) \ + type name(void) \ + { \ + return (type)(INLINE_SYSCALL(name, 0)); \ + } + +#undef _syscall1 +#define _syscall1(type,name,type1,arg1) \ + type name(type1 arg1) \ + { \ + return (type)(INLINE_SYSCALL(name, 1, arg1)); \ + } + +#undef _syscall2 +#define _syscall2(type,name,type1,arg1,type2,arg2) \ + type name(type1 arg1, type2 arg2) \ + { \ + return (type)(INLINE_SYSCALL(name, 2, arg1, arg2)); \ + } + +#undef _syscall3 +#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ + type name(type1 arg1, type2 arg2, type3 arg3) \ + { \ + return (type)(INLINE_SYSCALL(name, 3, arg1, \ + arg2, arg3)); \ + } + +#undef _syscall4 +#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3, \ + type4,arg4) \ + type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ + { \ + return (type)(INLINE_SYSCALL(name, 4, arg1, arg2, \ + arg3, arg4)); \ + } + +#undef _syscall5 +#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3, \ + type4,arg4,type5,arg5) \ + type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ + type5 arg5) \ + { \ + return (type)(INLINE_SYSCALL(name, 5, arg1, arg2, \ + arg3, arg4, arg5)); \ + } + +#undef _syscall6 +#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3, \ + type4,arg4,type5,arg5,type6,arg6) \ + type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ + type5 arg5, type6 arg6) \ + { \ + return (type)(INLINE_SYSCALL(name, 6, arg1, arg2, arg3, \ + arg4, arg5, arg6)); \ + } + +#undef unlikely +#define unlikely(x) __builtin_expect((x), 0) + +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) \ + ({ \ + unsigned _sys_result = INTERNAL_SYSCALL(name, , nr, args); \ + if (unlikely(INTERNAL_SYSCALL_ERROR_P(_sys_result, ))) { \ + __set_errno(INTERNAL_SYSCALL_ERRNO(_sys_result, )); \ + _sys_result = (unsigned int) -1; \ + } \ + (int) _sys_result; \ + }) + +#undef INTERNAL_SYSCALL_DECL +#define INTERNAL_SYSCALL_DECL(err) do { } while(0) + +#undef INTERNAL_SYSCALL +#define INTERNAL_SYSCALL(name, err, nr, args...) \ + ({ \ + register int _a1 asm ("r12"); \ + register int _scno asm("r8") = SYS_ify(name); \ + LOAD_ARGS_##nr (args); \ + asm volatile ("scall /* syscall " #name " */" \ + : "=r" (_a1) \ + : "r"(_scno) ASM_ARGS_##nr \ + : "cc", "memory"); \ + _a1; \ + }) + +#undef INTERNAL_SYSCALL_ERROR_P +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int)(val) >= 0xfffff001U) + +#undef INTERNAL_SYSCALL_ERRNO +#define INTERNAL_SYSCALL_ERRNO(val, errr) (-(val)) + +#define LOAD_ARGS_0() do { } while(0) +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + _a1 = (int) (a1); \ + LOAD_ARGS_0() +#define ASM_ARGS_1 ASM_ARGS_0, "r"(_a1) +#define LOAD_ARGS_2(a1, a2) \ + register int _a2 asm("r11") = (int)(a2); \ + LOAD_ARGS_1(a1) +#define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + register int _a3 asm("r10") = (int)(a3); \ + LOAD_ARGS_2(a1, a2) +#define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + register int _a4 asm("r9") = (int)(a4); \ + LOAD_ARGS_3(a1, a2, a3) +#define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + register int _a5 asm("r5") = (int)(a5); \ + LOAD_ARGS_4(a1, a2, a3, a4) +#define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + register int _a6 asm("r3") = (int)(a6); \ + LOAD_ARGS_5(a1, a2, a3, a4, a5) +#define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6) + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h b/libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h new file mode 100644 index 000000000..e95e8a5d2 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/uClibc_arch_features.h @@ -0,0 +1,45 @@ +/* + * Track misc arch-specific features that aren't config options + */ + +#ifndef _BITS_UCLIBC_ARCH_FEATURES_H +#define _BITS_UCLIBC_ARCH_FEATURES_H + +/* instruction used when calling abort() to kill yourself */ +/* trigger illegal instruction exception, same as BUG in Linux */ +#define __UCLIBC_ABORT_INSTRUCTION__ ".short 0x5df0" + +/* can your target use syscall6() for mmap ? */ +#define __UCLIBC_MMAP_HAS_6_ARGS__ + +/* does your target use syscall4() for truncate64 ? (32bit arches only) */ +#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__ + +/* does your target have a broken create_module() ? */ +#undef __UCLIBC_BROKEN_CREATE_MODULE__ + +/* does your target have to worry about older [gs]etrlimit() ? */ +#undef __UCLIBC_HANDLE_OLDER_RLIMIT__ + +/* does your target prefix all symbols with an _ ? */ +#define __UCLIBC_NO_UNDERSCORES__ + +/* does your target have an asm .set ? */ +#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ + +/* define if target doesn't like .global */ +#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__ + +/* define if target supports .weak */ +#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__ + +/* define if target supports .weakext */ +#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__ + +/* needed probably only for ppc64 */ +#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__ + +/* define if target supports IEEE signed zero floats */ +#define __UCLIBC_HAVE_SIGNED_ZERO__ + +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */ diff --git a/libc/sysdeps/linux/avr32/bits/wordsize.h b/libc/sysdeps/linux/avr32/bits/wordsize.h new file mode 100644 index 000000000..0880d37e9 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bits/wordsize.h @@ -0,0 +1 @@ +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/avr32/brk.c b/libc/sysdeps/linux/avr32/brk.c new file mode 100644 index 000000000..d824c7cd0 --- /dev/null +++ b/libc/sysdeps/linux/avr32/brk.c @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <errno.h> +#include <unistd.h> +#include <sys/syscall.h> + +libc_hidden_proto(brk) + +void *__curbrk attribute_hidden = 0; + +int brk (void *addr) +{ + void *newbrk; + + newbrk = (void *)INLINE_SYSCALL(brk, 1, addr); + + __curbrk = newbrk; + + if (newbrk < addr) { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +libc_hidden_def(brk) diff --git a/libc/sysdeps/linux/avr32/bsd-_setjmp.S b/libc/sysdeps/linux/avr32/bsd-_setjmp.S new file mode 100644 index 000000000..e8ac4c6a1 --- /dev/null +++ b/libc/sysdeps/linux/avr32/bsd-_setjmp.S @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + + /* This just does a tail-call to __sigsetjmp(env, 0) */ + .global _setjmp + .type _setjmp,"function" + .align 1 +_setjmp: + mov r11, 0 + bral __GI___sigsetjmp + .size _setjmp, . - _setjmp diff --git a/libc/sysdeps/linux/avr32/bsd-setjmp.S b/libc/sysdeps/linux/avr32/bsd-setjmp.S new file mode 100644 index 000000000..5394446ae --- /dev/null +++ b/libc/sysdeps/linux/avr32/bsd-setjmp.S @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + + /* This just does a tail-call to __sigsetjmp(env, 1) */ + .global setjmp + .type setjmp,"function" + .align 1 +setjmp: + mov r11, 1 + bral __GI___sigsetjmp + .size setjmp, . - setjmp diff --git a/libc/sysdeps/linux/avr32/clone.c b/libc/sysdeps/linux/avr32/clone.c new file mode 100644 index 000000000..c5f5a74a8 --- /dev/null +++ b/libc/sysdeps/linux/avr32/clone.c @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2004 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <errno.h> +#include <sys/syscall.h> +#include <unistd.h> + +/* + * I don't know if we can be absolutely certain that the fn and arg + * parameters are preserved when returning as the child. If the + * compiler stores them in registers (r0-r7), they should be. + */ +int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) +{ + register int (*_fn)(void *arg) = fn; + register void *_arg = arg; + int err; + + /* Sanity check the arguments */ + err = -EINVAL; + if (!fn) + goto syscall_error; + if (!child_stack) + goto syscall_error; + + err = INLINE_SYSCALL(clone, 2, flags, child_stack); + if (err < 0) + goto syscall_error; + else if (err != 0) + return err; + + _exit(_fn(_arg)); + +syscall_error: + __set_errno (-err); + return -1; +} diff --git a/libc/sysdeps/linux/avr32/crt1.S b/libc/sysdeps/linux/avr32/crt1.S new file mode 100644 index 000000000..0f0a2e87d --- /dev/null +++ b/libc/sysdeps/linux/avr32/crt1.S @@ -0,0 +1,97 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + * + * When we enter _start, the stack looks like this: + * argc argument counter + * argv[0] pointer to program name + * argv[1..argc-1] pointers to program args + * NULL + * env[0..N] pointers to environment variables + * NULL + * + * r12 contains a function pointer to be registered with `atexit'. + * This is how the dynamic linker arranges to have DT_FINI functions + * called for shared libraries that have been loaded before this + * code runs. + * + * We're going to call the following function: + * __uClibc_main(int (*main)(int, char **, char **), int argc, + * char **argv, void (*app_init)(void), void (*app_fini)(void), + * void (*rtld_fini)(void), void *stack_end) + * + * So we need to set up things as follows: + * r12 = address of main + * r11 = argc + * r10 = &argv[0] + * r9 = address of _init + * r8 = address of _fini + * sp[0] = whatever we got passed in r12 + */ + +#include <features.h> + + .text + .global _start + .type _start, @function +_start: + /* Clear the frame pointer and link register since this is the outermost frame. */ + mov r7, 0 + mov lr, 0 + + ld.w r11, sp++ /* argc */ + mov r10, sp /* &argv[0] */ + + st.w --sp, r10 /* stack_end */ + st.w --sp, r12 /* rtld_fini */ + +#ifdef __PIC__ + lddpc r6, .L_GOT +.L_RGOT: + rsub r6, pc + lda.w r9, _init + lda.w r8, _fini + lda.w r12, main + + /* Ok, now run uClibc's main() -- should not return */ + call __uClibc_main + + .align 2 +.L_GOT: + .long .L_RGOT - _GLOBAL_OFFSET_TABLE_ +#else + lddpc r9, __init_addr /* app_init */ + lddpc r8, __fini_addr /* app_fini */ + lddpc r12, __main_addr /* main */ + + /* Ok, now run uClibc's main() -- should not return */ + lddpc pc, ___uClibc_main_addr + + .align 2 +__init_addr: + .long _init +__fini_addr: + .long _fini +__main_addr: + .long main +___uClibc_main_addr: + .long __uClibc_main +#endif + .size _start, . - _start + + /* + * The LSB says we need this. + */ + .section ".note.ABI-tag", "a" + .align 4 + .long 2f - 1f /* namesz */ + .long 4f - 3f /* descsz */ + .long 1 /* type */ +1: .asciz "GNU" /* name */ +2: .align 4 +3: .long 0 /* Linux executable */ + .long 2,6,0 /* Earliest compatible kernel */ +4: .align 4 diff --git a/libc/sysdeps/linux/avr32/crti.S b/libc/sysdeps/linux/avr32/crti.S new file mode 100644 index 000000000..69b387cb8 --- /dev/null +++ b/libc/sysdeps/linux/avr32/crti.S @@ -0,0 +1,26 @@ + + .section .init + .align 2 + .global _init + .type _init, @function +_init: + stm --sp, r6, lr + lddpc r6, 2f +1: rsub r6, pc + rjmp 3f + .align 2 +2: .long 1b - _GLOBAL_OFFSET_TABLE_ +3: + + .section .fini + .align 2 + .global _fini + .type _fini, @function +_fini: + stm --sp, r6, lr + lddpc r6, 2f +1: rsub r6, pc + rjmp 3f + .align 2 +2: .long 1b - _GLOBAL_OFFSET_TABLE_ +3: diff --git a/libc/sysdeps/linux/avr32/crtn.S b/libc/sysdeps/linux/avr32/crtn.S new file mode 100644 index 000000000..02e1a8367 --- /dev/null +++ b/libc/sysdeps/linux/avr32/crtn.S @@ -0,0 +1,14 @@ + + .section .init + .align 2 + .global _init + .type _init, @function + ldm sp++, r6, pc + .size _init, . - _init + + .section .fini + .align 2 + .global _fini + .type _fini, @function + ldm sp++, r6, pc + .size _fini, . - _fini diff --git a/libc/sysdeps/linux/avr32/mmap.c b/libc/sysdeps/linux/avr32/mmap.c new file mode 100644 index 000000000..80310a45f --- /dev/null +++ b/libc/sysdeps/linux/avr32/mmap.c @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +#include <errno.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/syscall.h> + +libc_hidden_proto(mmap) + +static _syscall6(__ptr_t, mmap2, __ptr_t, addr, size_t, len, int, prot, + int, flags, int, fd, __off_t, pgoff); + +__ptr_t mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset) +{ + unsigned long page_size = sysconf(_SC_PAGESIZE); + unsigned long pgoff; + + if (offset & (page_size - 1)) { + __set_errno(EINVAL); + return MAP_FAILED; + } + + pgoff = (unsigned long)offset >> (31 - __builtin_clz(page_size)); + + return mmap2(addr, len, prot, flags, fd, pgoff); +} +libc_hidden_def(mmap) diff --git a/libc/sysdeps/linux/avr32/setjmp.S b/libc/sysdeps/linux/avr32/setjmp.S new file mode 100644 index 000000000..77f80d277 --- /dev/null +++ b/libc/sysdeps/linux/avr32/setjmp.S @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + + .text + + .global __sigsetjmp + .type __sigsetjmp,"function" + + .align 1 +__sigsetjmp: + mustr r8 + stm r12, r0,r1,r2,r3,r4,r5,r6,r7,r8,sp,lr + + /* + * Make a tail call to __sigjmp_save; it takes the same args + * and is hidden so we don't need to mess around with the GOT. + */ + rjmp __sigjmp_save + .size __sigsetjmp, . - __sigsetjmp + +libc_hidden_def(__sigsetjmp) diff --git a/libc/sysdeps/linux/avr32/sigaction.c b/libc/sysdeps/linux/avr32/sigaction.c new file mode 100644 index 000000000..6817e1b1e --- /dev/null +++ b/libc/sysdeps/linux/avr32/sigaction.c @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <errno.h> +#include <signal.h> +#include <string.h> +#include <sys/syscall.h> +#include <bits/kernel_sigaction.h> + +#define SA_RESTORER 0x04000000 +extern void __default_rt_sa_restorer(void); + +libc_hidden_proto(memcpy) + +/* + * If act is not NULL, change the action for sig to *act. + * If oact is not NULL, put the old action for sig in *oact. + */ +int __libc_sigaction(int signum, const struct sigaction *act, + struct sigaction *oldact) +{ + struct kernel_sigaction kact, koact; + int result; + + if (act) { + kact.k_sa_handler = act->sa_handler; + memcpy(&kact.sa_mask, &act->sa_mask, sizeof (kact.sa_mask)); + kact.sa_flags = act->sa_flags; + if (kact.sa_flags & (SA_RESTORER | SA_ONSTACK)) + kact.sa_restorer = act->sa_restorer; + else + kact.sa_restorer = __default_rt_sa_restorer; + kact.sa_flags |= SA_RESTORER; + } + + result = __syscall_rt_sigaction(signum, act ? __ptrvalue(&kact) : NULL, + oldact ? __ptrvalue(&koact) : NULL, + _NSIG / 8); + + if (oldact && result >= 0) { + oldact->sa_handler = koact.k_sa_handler; + memcpy(&oldact->sa_mask, &koact.sa_mask, + sizeof(oldact->sa_mask)); + oldact->sa_flags = koact.sa_flags; + oldact->sa_restorer = koact.sa_restorer; + } + + return result; +} + +#ifndef LIBC_SIGACTION +libc_hidden_proto(sigaction) +weak_alias(__libc_sigaction, sigaction) +libc_hidden_weak(sigaction) +#endif diff --git a/libc/sysdeps/linux/avr32/sigrestorer.S b/libc/sysdeps/linux/avr32/sigrestorer.S new file mode 100644 index 000000000..03f8bb568 --- /dev/null +++ b/libc/sysdeps/linux/avr32/sigrestorer.S @@ -0,0 +1,15 @@ +/* + * Copyright (C) 2004 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <sys/syscall.h> + + .global __default_rt_sa_restorer + .type __default_rt_sa_restorer,"function" + .align 1 +__default_rt_sa_restorer: + mov r8, __NR_rt_sigreturn + scall diff --git a/libc/sysdeps/linux/avr32/sys/elf.h b/libc/sysdeps/linux/avr32/sys/elf.h new file mode 100644 index 000000000..3dbefae15 --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/elf.h @@ -0,0 +1,26 @@ +/* Copyright (C) 1996, 1997, 1999, 2001 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 _SYS_ELF_H +#define _SYS_ELF_H 1 + +#warning "This header is obsolete; use <sys/procfs.h> instead." + +#include <sys/procfs.h> + +#endif /* sys/elf.h */ diff --git a/libc/sysdeps/linux/avr32/sys/procfs.h b/libc/sysdeps/linux/avr32/sys/procfs.h new file mode 100644 index 000000000..af6dcb0ab --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/procfs.h @@ -0,0 +1,123 @@ +/* Copyright (C) 1996, 1997, 1999, 2001 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 _SYS_PROCFS_H +#define _SYS_PROCFS_H 1 + +/* This is somewhat modelled after the file of the same name on SVR4 + systems. It provides a definition of the core file format for ELF + used on Linux. It doesn't have anything to do with the /proc file + system, even though Linux has one. + + Anyway, the whole purpose of this file is for GDB and GDB only. + Don't read too much into it. Don't use it for anything other than + GDB unless you know what you are doing. */ + +#include <features.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/user.h> + +__BEGIN_DECLS + +/* Type for a general-purpose register. */ +typedef unsigned long elf_greg_t; + +/* And the whole bunch of them. We could have used `struct + user_regs' directly in the typedef, but tradition says that + the register set is an array, which does have some peculiar + semantics, so leave it that way. */ +#define ELF_NGREG (sizeof (struct user_regs) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Register set for the floating-point registers. */ +typedef struct user_fpregs elf_fpregset_t; + +/* Signal info. */ +struct elf_siginfo + { + int si_signo; /* Signal number. */ + int si_code; /* Extra code. */ + int si_errno; /* Errno. */ + }; + +/* Definitions to generate Intel SVR4-like core files. These mostly + have the same names as the SVR4 types with "elf_" tacked on the + front to prevent clashes with Linux definitions, and the typedef + forms have been avoided. This is mostly like the SVR4 structure, + but more Linuxy, with things that Linux does not support and which + GDB doesn't really use excluded. */ + +struct elf_prstatus + { + struct elf_siginfo pr_info; /* Info associated with signal. */ + short int pr_cursig; /* Current signal. */ + unsigned long int pr_sigpend; /* Set of pending signals. */ + unsigned long int pr_sighold; /* Set of held signals. */ + __pid_t pr_pid; + __pid_t pr_ppid; + __pid_t pr_pgrp; + __pid_t pr_sid; + struct timeval pr_utime; /* User time. */ + struct timeval pr_stime; /* System time. */ + struct timeval pr_cutime; /* Cumulative user time. */ + struct timeval pr_cstime; /* Cumulative system time. */ + elf_gregset_t pr_reg; /* GP registers. */ + int pr_fpvalid; /* True if math copro being used. */ + }; + + +#define ELF_PRARGSZ (80) /* Number of chars for args. */ + +struct elf_prpsinfo + { + char pr_state; /* Numeric process state. */ + char pr_sname; /* Char for pr_state. */ + char pr_zomb; /* Zombie. */ + char pr_nice; /* Nice val. */ + unsigned long int pr_flag; /* Flags. */ + unsigned short int pr_uid; + unsigned short int pr_gid; + int pr_pid, pr_ppid, pr_pgrp, pr_sid; + /* Lots missing */ + char pr_fname[16]; /* Filename of executable. */ + char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */ + }; + +/* The rest of this file provides the types for emulation of the + Solaris <proc_service.h> interfaces that should be implemented by + users of libthread_db. */ + +/* Addresses. */ +typedef void *psaddr_t; + +/* Register sets. Linux has different names. */ +typedef elf_gregset_t prgregset_t; +typedef elf_fpregset_t prfpregset_t; + +/* We don't have any differences between processes and threads, + therefore have only one PID type. */ +typedef __pid_t lwpid_t; + +/* Process status and info. In the end we do provide typedefs for them. */ +typedef struct elf_prstatus prstatus_t; +typedef struct elf_prpsinfo prpsinfo_t; + +__END_DECLS + +#endif /* sys/procfs.h */ diff --git a/libc/sysdeps/linux/avr32/sys/ucontext.h b/libc/sysdeps/linux/avr32/sys/ucontext.h new file mode 100644 index 000000000..ba8940cb2 --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/ucontext.h @@ -0,0 +1,90 @@ +/* Copyright (C) 1998, 1999, 2001 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. */ + +/* Linux/AVR32 ABI compliant context switching support. */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> +#include <sys/procfs.h> +#include <bits/sigcontext.h> + +typedef int greg_t; + +/* Number of general registers. */ +#define NGREG 16 + +/* Container for all general registers. */ +typedef elf_gregset_t gregset_t; + +/* Number of each register is the `gregset_t' array. */ +enum +{ + R0 = 0, +#define R0 R0 + R1 = 1, +#define R1 R1 + R2 = 2, +#define R2 R2 + R3 = 3, +#define R3 R3 + R4 = 4, +#define R4 R4 + R5 = 5, +#define R5 R5 + R6 = 6, +#define R6 R6 + R7 = 7, +#define R7 R7 + R8 = 8, +#define R8 R8 + R9 = 9, +#define R9 R9 + R10 = 10, +#define R10 R10 + R11 = 11, +#define R11 R11 + R12 = 12, +#define R12 R12 + R13 = 13, +#define R13 R13 + R14 = 14, +#define R14 R14 + R15 = 15 +#define R15 R15 +}; + +/* Structure to describe FPU registers. */ +typedef elf_fpregset_t fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct sigcontext mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext +{ + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + sigset_t uc_sigmask; /* mask last for extensibility */ +} ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/libc/sysdeps/linux/avr32/sys/user.h b/libc/sysdeps/linux/avr32/sys/user.h new file mode 100644 index 000000000..4fa58480b --- /dev/null +++ b/libc/sysdeps/linux/avr32/sys/user.h @@ -0,0 +1,46 @@ +#ifndef _SYS_USER_H +#define _SYS_USER_H + +struct user_fpregs +{ + +}; + +struct user_regs +{ + unsigned long sr; + unsigned long pc; + unsigned long lr; + unsigned long sp; + unsigned long r12; + unsigned long r11; + unsigned long r10; + unsigned long r9; + unsigned long r8; + unsigned long r7; + unsigned long r6; + unsigned long r5; + unsigned long r4; + unsigned long r3; + unsigned long r2; + unsigned long r1; + unsigned long r0; + unsigned long r12_orig; +}; + +struct user +{ + struct user_regs regs; /* general registers */ + size_t u_tsize; /* text size (pages) */ + size_t u_dsize; /* data size (pages) */ + size_t u_ssize; /* stack size (pages) */ + unsigned long start_code; /* text starting address */ + unsigned long start_data; /* data starting address */ + unsigned long start_stack; /* stack starting address */ + long int signal; /* signal causing core dump */ + struct user_regs * u_ar0; /* help gdb find registers */ + unsigned long magic; /* identifies a core file */ + char u_comm[32]; /* user command name */ +}; + +#endif /* _SYS_USER_H */ diff --git a/libc/sysdeps/linux/avr32/syscall.S b/libc/sysdeps/linux/avr32/syscall.S new file mode 100644 index 000000000..f14fcdb30 --- /dev/null +++ b/libc/sysdeps/linux/avr32/syscall.S @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#include <features.h> + + .text + + /* + * long int syscall(long int sysno, ...) + */ + .global syscall + .type syscall, @function + .align 2 +syscall: + stm --sp, r3,r5,r6,lr + sub lr, sp, -16 + mov r8, r12 + ldm lr, r3,r5,r9-r12 + scall + cp.w r12, -4095 + brlo .Ldone + +#ifdef __PIC__ + lddpc r6, .Lgot +.Lgotcalc: + rsub r6, pc +# ifdef __UCLIBC_HAS_THREADS__ + rsub r3, r12, 0 + mcall r6[__errno_location@got] + st.w r12[0], r3 +# else + ld.w r3, r6[errno@got] + neg r12 + st.w r3[0], r12 +# endif +#else +# ifdef __UCLIBC_HAS_THREADS__ + rsub r3, r12, 0 + mcall .Lerrno_location + st.w r12[0], r3 +# else + lddpc r3, .Lerrno + neg r12 + st.w r3[0], r12 +# endif +#endif + mov r12, -1 + +.Ldone: + ldm sp++, r3,r5,r6,pc + + .align 2 +#ifdef __PIC__ +.Lgot: + .long .Lgotcalc - _GLOBAL_OFFSET_TABLE_ +#else +# ifdef __UCLIBC_HAS_THREADS__ +.Lerrno_location: + .long __errno_location +# else +.Lerrno: + .long errno +# endif +#endif + + + .size syscall, . - syscall diff --git a/libc/sysdeps/linux/avr32/vfork.S b/libc/sysdeps/linux/avr32/vfork.S new file mode 100644 index 000000000..d25fbecdb --- /dev/null +++ b/libc/sysdeps/linux/avr32/vfork.S @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2005 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ + +/* + * Clone the process without copying the address space. The + * calling process is suspended until the child either exits + * or calls execve. + * + * This all means that we cannot rely on the stack to store + * away registers, since they will be overwritten by the child + * as soon as it makes another function call (e.g. execve()). + * Fortunately, the Linux kernel preserves LR across system calls. + */ + +#include <features.h> +#include <sys/syscall.h> + + .global __vfork + .type __vfork,@function + .align 1 +__vfork: + mov r8, __NR_vfork + scall + cp.w r12, -4096 + retls r12 + + /* vfork failed, so we may use the stack freely */ + pushm r4-r7,lr +#ifdef __PIC__ + lddpc r6, .L_GOT + rsub r4, r12, 0 +.L_RGOT: + rsub r6, pc + mcall r6[__errno_location@got] +#else + rsub r4, r12, 0 + mcall .L__errno_location +#endif + st.w r12[0], r4 + popm r4-r7,pc,r12=-1 + + .align 2 +#ifdef __PIC__ +.L_GOT: + .long .L_RGOT - _GLOBAL_OFFSET_TABLE_ +#else +.L__errno_location: + .long __errno_location +#endif + .size __vfork, . - __vfork + +weak_alias(__vfork,vfork) +libc_hidden_weak(vfork) diff --git a/libpthread/linuxthreads.old/sysdeps/avr32/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/avr32/pt-machine.h new file mode 100644 index 000000000..874c8d15e --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/avr32/pt-machine.h @@ -0,0 +1,73 @@ +/* Machine-dependent pthreads configuration and inline functions. + * + * Copyright (C) 2005-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#include <features.h> + +static inline int +_test_and_set (int *p, int v) +{ + int result; + + __asm__ __volatile__( + "/* Inline test and set */\n" + " xchg %[old], %[mem], %[new]" + : [old] "=&r"(result) + : [mem] "r"(p), [new] "r"(v) + : "memory"); + + return result; +} + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + return _test_and_set(spinlock, 1); +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("sp"); + +/* Compare-and-swap for semaphores. */ + +#define HAS_COMPARE_AND_SWAP +PT_EI int +__compare_and_swap(long int *p, long int oldval, long int newval) +{ + long int result; + + __asm__ __volatile__( + "/* Inline compare and swap */\n" + "1: ssrf 5\n" + " ld.w %[result], %[mem]\n" + " eor %[result], %[old]\n" + " brne 2f\n" + " stcond %[mem], %[new]\n" + " brne 1b\n" + "2:" + : [result] "=&r"(result), [mem] "=m"(*p) + : "m"(*p), [new] "r"(newval), [old] "r"(oldval) + : "cc", "memory"); + + return result == 0; +} + +#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/avr32/pt-machine.h b/libpthread/linuxthreads/sysdeps/avr32/pt-machine.h new file mode 100644 index 000000000..9ff55586b --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/avr32/pt-machine.h @@ -0,0 +1,73 @@ +/* Machine-dependent pthreads configuration and inline functions. + * + * Copyright (C) 2005-2007 Atmel Corporation + * + * This file is subject to the terms and conditions of the GNU Lesser General + * Public License. See the file "COPYING.LIB" in the main directory of this + * archive for more details. + */ +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H 1 + +#include <features.h> + +static inline int +_test_and_set (int *p, int v) __THROW +{ + int result; + + __asm__ __volatile__( + "/* Inline test and set */\n" + " xchg %[old], %[mem], %[new]" + : [old] "=&r"(result) + : [mem] "r"(p), [new] "r"(v) + : "memory"); + + return result; +} + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +extern long int testandset (int *spinlock); +extern int __compare_and_swap (long int *p, long int oldval, long int newval); + +/* Spinlock implementation; required. */ +PT_EI long int +testandset (int *spinlock) +{ + return _test_and_set(spinlock, 1); +} + + +/* Get some notion of the current stack. Need not be exactly the top + of the stack, just something somewhere in the current frame. */ +#define CURRENT_STACK_FRAME stack_pointer +register char * stack_pointer __asm__ ("sp"); + +/* Compare-and-swap for semaphores. */ + +#define HAS_COMPARE_AND_SWAP +PT_EI int +__compare_and_swap(long int *p, long int oldval, long int newval) +{ + int result; + + __asm__ __volatile__( + "/* Inline compare and swap */\n" + "1: ssrf 5\n" + " ld.w %[result], %[mem]\n" + " eor %[result], %[old]\n" + " brne 2f\n" + " stcond %[mem], %[new]\n" + " brne 1b\n" + "2:" + : [result] "=&r"(result), [mem] "=m"(*p) + : "m"(*p), [new] "r"(newval), [old] "r"(oldval) + : "cc", "memory"); + + return result == 0; +} + +#endif /* pt-machine.h */ diff --git a/utils/ldd.c b/utils/ldd.c index 75ad628ea..e11760a1a 100644 --- a/utils/ldd.c +++ b/utils/ldd.c @@ -44,6 +44,11 @@ #define ELFCLASSM ELFCLASS32 #endif +#if defined(__avr32__) +#define MATCH_MACHINE(x) (x == EM_AVR32) +#define ELFCLASSM ELFCLASS32 +#endif + #if defined(__s390__) #define MATCH_MACHINE(x) (x == EM_S390) #define ELFCLASSM ELFCLASS32 |