diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2016-04-21 01:25:29 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-06-30 03:24:42 +0200 |
| commit | ee92c0fe5c1b9d59508273916e2c9a75b68dbc13 (patch) | |
| tree | 65a22258b12f84325910fc2ad47e2b02696ef593 /libc/sysdeps/linux/nds32 | |
| parent | dd46699e46decb7273f44dc2cbf307f096dc39e8 (diff) | |
nds32: add support for new architecture
Add support for Andes Technology NDS32 architecture.
See here http://www.andestech.com/en/index/index.htm for more
informaton. Verification of the port from an older uClibc
port was done on a sponsored AG101p board.
The testsuite only has 5 errors, three are related to
an existing bug in dlclose() with LT.old, also happening
on cris32 and m68k.
Failures to fallocate/posix_fallocate are unresolved.
Thanks to Andes Technology sponsoring the hardware and
being very helpful while doing the uClibc-ng porting.
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Diffstat (limited to 'libc/sysdeps/linux/nds32')
44 files changed, 3272 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/nds32/Makefile b/libc/sysdeps/linux/nds32/Makefile new file mode 100644 index 000000000..633c91f3e --- /dev/null +++ b/libc/sysdeps/linux/nds32/Makefile @@ -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. +# + +top_srcdir=../../../../ +top_builddir=../../../../ +all: objs +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libc/sysdeps/linux/nds32/Makefile.arch b/libc/sysdeps/linux/nds32/Makefile.arch new file mode 100644 index 000000000..8691875ee --- /dev/null +++ b/libc/sysdeps/linux/nds32/Makefile.arch @@ -0,0 +1,5 @@ +# Copyright (C) 2016 Andes Technology, Inc. +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + +CSRC-y := brk.c sigaction.c +SSRC-y := setjmp.S __longjmp.S bsd-setjmp.S bsd-_setjmp.S clone.S mmap.S sigrestorer.S vfork.S sysdep.S syscall.S diff --git a/libc/sysdeps/linux/nds32/__longjmp.S b/libc/sysdeps/linux/nds32/__longjmp.S new file mode 100644 index 000000000..fbea6f6f4 --- /dev/null +++ b/libc/sysdeps/linux/nds32/__longjmp.S @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* + setjmp/longjmp for nds32. + r0 - r5 are for paramter passing - no need to save + r6 - r14 are callee saved - needs to save + r15 is temp register for assembler - no need to save + r16 - r25 are caller saved - no need to save + r26 - r27 are temp registers for OS - no need to save + r28 is fp - need to save + r29 is gp - need to save + r30 is ra - need to save + r31 is sp - need to save + so we need to save r6 - r14 and r28 - r31 + The jmpbuf looks like this: + r6 + r7 + r8 + r9 + r10 + r11 + r12 + r13 + r14 + fp + gp + ra + sp +#ifdef NDS32_ABI_2FP_PLUS + ($fpcfg.freg) + (callee-saved FPU regs) +#endif + reserved(for 8-byte align if needed) +*/ + +#include <sysdep.h> +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + .section .text + +/* __longjmp (env[0].__jmpbuf, val ?: 1); */ +ENTRY(__longjmp) + ! restore registers + lmw.bim $r6, [$r0], $r14, #0xf + +#ifdef NDS32_ABI_2FP_PLUS + lwi.bi $r20, [$r0], #4 /* Load $fpcfg.freg to $r20. */ + + /* Case switch for $r20 as $fpcfg.freg. */ + beqz $r20, .LCFG0 /* Branch if $fpcfg.freg = 0b00. */ + xori $r15, $r20, #0b10 + beqz $r15, .LCFG2 /* Branch if $fpcfg.freg = 0b10. */ + srli $r20, $r20, #0b01 + beqz $r20, .LCFG1 /* Branch if $fpcfg.freg = 0b01. */ + /* Fall-through if $fpcfg.freg = 0b11. */ +.LCFG3: + fldi.bi $fd31, [$r0], #8 + fldi.bi $fd30, [$r0], #8 + fldi.bi $fd29, [$r0], #8 + fldi.bi $fd28, [$r0], #8 + fldi.bi $fd27, [$r0], #8 + fldi.bi $fd26, [$r0], #8 + fldi.bi $fd25, [$r0], #8 + fldi.bi $fd24, [$r0], #8 +.LCFG2: + fldi.bi $fd10, [$r0], #8 + fldi.bi $fd9, [$r0], #8 + fldi.bi $fd8, [$r0], #8 +.LCFG1: + fldi.bi $fd7, [$r0], #8 + fldi.bi $fd6, [$r0], #8 + fldi.bi $fd5, [$r0], #8 + fldi.bi $fd4, [$r0], #8 +.LCFG0: + fldi.bi $fd3, [$r0], #8 +#endif /* NDS32_ABI_2FP_PLUS */ + + + ! return error code; make sure error code is not 0 + bnez $r1, .Ldone + movi $r1, #1 +.Ldone: + addi $r0, $r1, #0 + ret +END(__longjmp) +libc_hidden_def(__longjmp) diff --git a/libc/sysdeps/linux/nds32/__syscall_error.c b/libc/sysdeps/linux/nds32/__syscall_error.c new file mode 100644 index 000000000..2aa6903e2 --- /dev/null +++ b/libc/sysdeps/linux/nds32/__syscall_error.c @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <errno.h> +#include <features.h> + +/* This routine is jumped to by all the syscall handlers, to stash + * an error number into errno. */ +int __syscall_error(int err_no) attribute_hidden; +int __syscall_error(int err_no) +{ + __set_errno(err_no); + return -1; +} diff --git a/libc/sysdeps/linux/nds32/bits/byteswap.h b/libc/sysdeps/linux/nds32/bits/byteswap.h new file mode 100644 index 000000000..0f43cbb4e --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/byteswap.h @@ -0,0 +1,121 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Macros to swap the order of bytes in integer values. + Copyright (C) 1997, 1998, 2000, 2002, 2003, 2006, 2007 + Free Software Foundation, Inc. + + 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. */ + +#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. */ +#define __bswap_constant_16(x) \ + ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) + +#ifdef __GNUC__ +# if __GNUC__ >= 2 +# define __bswap_16(x) \ + (__extension__ \ + ({ register unsigned short int __v, __x = (x); \ + if (__builtin_constant_p (__x)) \ + __v = __bswap_constant_16 (__x); \ + else \ + __asm__ ("wsbh %0, %0\n\t" \ + : "=r" (__v) \ + : "0" (__x)); \ + __v; })) +# else +/* This is better than nothing. */ +# define __bswap_16(x) \ + (__extension__ \ + ({ register unsigned short int __x = (x); __bswap_constant_16 (__x); })) +# endif +#else +static __inline unsigned short int +__bswap_16 (unsigned short int __bsx) +{ + return __bswap_constant_16 (__bsx); +} +#endif + +/* Swap bytes in 32 bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) + +#ifdef __GNUC__ +# if __GNUC__ >= 2 +# define __bswap_32(x) \ + (__extension__ \ + ({ register unsigned int __v, __x = (x); \ + if (__builtin_constant_p (__x)) \ + __v = __bswap_constant_32 (__x); \ + else \ + __asm__ ("wsbh %0, %0\n\t" \ + "rotri %0, %0, #16\n\t" \ + : "=r" (__v) \ + : "0" (__x)); \ + __v; })) +# else +# define __bswap_32(x) \ + (__extension__ \ + ({ register unsigned int __x = (x); __bswap_constant_32 (__x); })) +# endif +#else +static __inline unsigned int +__bswap_32 (unsigned int __bsx) +{ + return __bswap_constant_32 (__bsx); +} +#endif + + +#if defined __GNUC__ && __GNUC__ >= 2 +/* 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 long 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/nds32/bits/endian.h b/libc/sysdeps/linux/nds32/bits/endian.h new file mode 100644 index 000000000..989d752d4 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/endian.h @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif /* _ENDIAN_H */ + +#ifdef __NDS32_EB__ +#define __BYTE_ORDER __BIG_ENDIAN +#else /* ! __NDS32_EB__ */ +#define __BYTE_ORDER __LITTLE_ENDIAN +#endif /* ! __NDS32_EB__ */ + +#define __FLOAT_WORD_ORDER __BYTE_ORDER diff --git a/libc/sysdeps/linux/nds32/bits/fcntl.h b/libc/sysdeps/linux/nds32/bits/fcntl.h new file mode 100644 index 000000000..d21c4e03c --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/fcntl.h @@ -0,0 +1,241 @@ +/* O_*, F_*, FD_* bit values for Linux. + Copyright (C) 1995, 1996, 1997, 1998, 2000, 2004, 2007 + 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _FCNTL_H +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead." +#endif + +#include <sys/types.h> +#ifdef __USE_GNU +# include <bits/uio.h> +#endif + + +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files + located on an ext2 file system */ +#define O_ACCMODE 0003 +#define O_RDONLY 00 +#define O_WRONLY 01 +#define O_RDWR 02 +#define O_CREAT 0100 /* not fcntl */ +#define O_EXCL 0200 /* not fcntl */ +#define O_NOCTTY 0400 /* not fcntl */ +#define O_TRUNC 01000 /* not fcntl */ +#define O_APPEND 02000 +#define O_NONBLOCK 04000 +#define O_NDELAY O_NONBLOCK +#define O_SYNC 010000 +#define O_FSYNC O_SYNC +#define O_ASYNC 020000 + +#ifdef __USE_GNU +# define O_DIRECT 040000 /* Direct disk access. */ +# define O_DIRECTORY 0200000 /* Must be a directory. */ +# define O_NOFOLLOW 0400000 /* Do not follow links. */ +# define O_NOATIME 01000000 /* Do not set atime. */ +# define O_CLOEXEC 02000000 /* set close_on_exec */ +# define O_PATH 010000000 /* Resolve pathname but do not open file. */ +#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 + +#ifdef __USE_LARGEFILE64 +# define O_LARGEFILE 0100000 +#endif + +/* Values for the second argument to `fcntl'. */ +#define F_DUPFD 0 /* Duplicate file descriptor. */ +#define F_GETFD 1 /* Get file descriptor flags. */ +#define F_SETFD 2 /* Set file descriptor flags. */ +#define F_GETFL 3 /* Get file status flags. */ +#define F_SETFL 4 /* Set file status flags. */ +#ifndef __USE_FILE_OFFSET64 +# define F_GETLK 5 /* Get record locking info. */ +# define F_SETLK 6 /* Set record locking info (non-blocking). */ +# define F_SETLKW 7 /* Set record locking info (blocking). */ +#else +# define F_GETLK F_GETLK64 /* Get record locking info. */ +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/ +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */ +#endif +#define F_GETLK64 12 /* Get record locking info. */ +#define F_SETLK64 13 /* Set record locking info (non-blocking). */ +#define F_SETLKW64 14 /* Set record locking info (blocking). */ + +#if defined __USE_BSD || defined __USE_UNIX98 +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ +#endif + +#ifdef __USE_GNU +# define F_SETSIG 10 /* Set number of signal to be sent. */ +# define F_GETSIG 11 /* Get number of signal to be sent. */ +#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. */ +# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with + close-on-exit set on new fd. */ +# define F_SETPIPE_SZ 1031 /* Set pipe page size array. */ +# define F_GETPIPE_SZ 1032 /* Get pipe page size array. */ +#endif + +/* For F_[GET|SET]FD. */ +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */ + +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */ +#define F_RDLCK 0 /* Read lock. */ +#define F_WRLCK 1 /* Write lock. */ +#define F_UNLCK 2 /* Remove lock. */ + +/* For old implementation of bsd flock(). */ +#define F_EXLCK 4 /* or 3 */ +#define F_SHLCK 8 /* or 4 */ + +#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 operations. */ +#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 int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ +#ifndef __USE_FILE_OFFSET64 + __off_t l_start; /* Offset where the lock begins. */ + __off_t l_len; /* Size of the locked area; zero means until EOF. */ +#else + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ +#endif + __pid_t l_pid; /* Process holding the lock. */ + }; + +#ifdef __USE_LARGEFILE64 +struct flock64 + { + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */ + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */ + __off64_t l_start; /* Offset where the lock begins. */ + __off64_t l_len; /* Size of the locked area; zero means until EOF. */ + __pid_t l_pid; /* Process holding the lock. */ + }; +#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 + + +#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ +/* Flags for SYNC_FILE_RANGE. */ +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages + in the range before performing the + write. */ +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those + dirty pages in the range which are + not presently under writeback. */ +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in + the range after performing the + write. */ + +/* Flags for SPLICE and VMSPLICE. */ +# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */ +# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing + (but we may still block on the fd + we splice from/to). */ +# define SPLICE_F_MORE 4 /* Expect more data. */ +# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */ +#endif + +__BEGIN_DECLS + +#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ + +/* Provide kernel hint to read ahead. */ +extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count) + __THROW; + + +/* Selective file content synch'ing. */ +extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to, + unsigned int __flags); + +/* Splice address range into a pipe. */ +extern ssize_t vmsplice (int __fdout, const struct iovec *__iov, + size_t __count, unsigned int __flags); + +/* Splice two files together. */ +extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout, + __off64_t *__offout, size_t __len, + unsigned int __flags); + +/* In-kernel implementation of tee for pipe buffers. */ +extern ssize_t tee (int __fdin, int __fdout, size_t __len, + unsigned int __flags); + +#endif +__END_DECLS + diff --git a/libc/sysdeps/linux/nds32/bits/kernel_stat.h b/libc/sysdeps/linux/nds32/bits/kernel_stat.h new file mode 100644 index 000000000..9e5c40d15 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/kernel_stat.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _BITS_STAT_STRUCT_H +#define _BITS_STAT_STRUCT_H + +struct kernel_stat { +#if defined(__NDS32_EB__) + unsigned short st_dev; + unsigned short __pad1; +#else + unsigned long st_dev; +#endif + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; +#if defined(__NDS32_EB__) + unsigned short st_rdev; + unsigned short __pad2; +#else + unsigned long st_rdev; +#endif + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + struct timespec st_atim; + struct timespec st_mtim; + struct timespec st_ctim; + unsigned long __unused4; + unsigned long __unused5; +}; + +struct kernel_stat64 { + unsigned long long st_dev; + unsigned long __pad0; +#define STAT64_HAS_BROKEN_ST_INO 1 + unsigned long __st_ino; + unsigned int st_mode; + unsigned int st_nlink; + unsigned long st_uid; + unsigned long st_gid; + unsigned long long st_rdev; + unsigned int __pad3; + unsigned long long st_size; + unsigned long st_blksize; + unsigned long long st_blocks; // Number 512-byte blocks allocated. + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ + unsigned long long st_ino; +}; + +#endif /* _BITS_STAT_STRUCT_H */ diff --git a/libc/sysdeps/linux/nds32/bits/kernel_types.h b/libc/sysdeps/linux/nds32/bits/kernel_types.h new file mode 100644 index 000000000..1b6ae4d1b --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/kernel_types.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef __ARCH_NDS32_POSIX_TYPES_H +#define __ARCH_NDS32_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 short __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 short __kernel_uid_t; +typedef unsigned short __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __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_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 __kernel_dev_t __kernel_old_dev_t; +typedef long __kernel_long_t; +typedef unsigned long __kernel_ulong_t; +__extension__ typedef long long __kernel_loff_t; + +typedef struct { +#ifdef __USE_ALL + int val[2]; +#else + int __val[2]; +#endif +} __kernel_fsid_t; + +#endif /* __ARCH_NDS32_POSIX_TYPES_H */ diff --git a/libc/sysdeps/linux/nds32/bits/mathdef.h b/libc/sysdeps/linux/nds32/bits/mathdef.h new file mode 100644 index 000000000..d0bac450b --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/mathdef.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1999, 2000, 2004 Free Software Foundation, Inc. + + 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. */ + +#if !defined _MATH_H && !defined _COMPLEX_H +# error "Never use <bits/mathdef.h> directly; include <math.h> instead" +#endif + +#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF +# define _MATH_H_MATHDEF 1 + +/* GCC does not promote `float' values to `double'. */ +typedef float float_t; /* `float' expressions are evaluated as + `float'. */ +typedef double double_t; /* `double' expressions are evaluated as + `double'. */ + +/* The values returned by `ilogb' for 0 and NaN respectively. */ +# define FP_ILOGB0 (-2147483647) +# define FP_ILOGBNAN (2147483647) + +#endif /* ISO C99 */ diff --git a/libc/sysdeps/linux/nds32/bits/mman.h b/libc/sysdeps/linux/nds32/bits/mman.h new file mode 100644 index 000000000..13f3e60b3 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/mman.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Definitions for POSIX memory map interface. Linux/NDS32 version. + Copyright (C) 1997, 2000, 2003, 2004 Free Software Foundation, Inc. + + 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 use <bits/mman.h> directly; include <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 0x00 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ +# define MAP_ANON MAP_ANONYMOUS +# define MAP_RENAME 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 /* pages are locked */ +# define MAP_NORESERVE 0x4000 /* don't check for reservations */ +# define MAP_POPULATE 0x08000 /* populate (prefault) pagetables */ +# define MAP_NONBLOCK 0x10000 /* do not block on IO */ +# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could + be uninitialized. */ +#endif + +/* Flags to `msync'. */ +#define MS_ASYNC 1 /* Sync memory asynchronously. */ +#define MS_INVALIDATE 2 /* Invalidate the caches. */ +#define MS_SYNC 4 /* Synchronous memory sync. */ + +/* Flags for `mlockall'. */ +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ +#define MCL_FUTURE 2 /* Lock all additions to address + space. */ + +/* Advice to `madvise'. */ +#ifdef __USE_BSD +#define MADV_NORMAL 0 /* default page-in behavior */ +#define MADV_RANDOM 1 /* page-in minimum required */ +#define MADV_SEQUENTIAL 2 /* read-ahead aggressively */ +#define MADV_WILLNEED 3 /* pre-fault pages */ +#define MADV_DONTNEED 4 /* discard these pages */ +#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 + +/* Flags for `mremap'. */ +#ifdef __USE_GNU +# define MREMAP_MAYMOVE 1 +#endif diff --git a/libc/sysdeps/linux/nds32/bits/setjmp.h b/libc/sysdeps/linux/nds32/bits/setjmp.h new file mode 100644 index 000000000..92d89003a --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/setjmp.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. + + The GNU C Library 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. + + 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Define the machine-dependent type `jmp_buf'. NDS32 version. */ +#ifndef _BITS_SETJMP_H +#define _BITS_SETJMP_H 1 + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +typedef struct + { + /* Callee-saved registers r6 - r14, r16 - r19 and r28 - r31. */ + int __regs[31]; + + /* Program counter. */ + void * __pc; + } __jmp_buf[1]; +#endif + +#endif /* bits/setjmp.h */ diff --git a/libc/sysdeps/linux/nds32/bits/shm.h b/libc/sysdeps/linux/nds32/bits/shm.h new file mode 100644 index 000000000..51e1ece7f --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/shm.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1995,1996,1997,2000,2002,2004 Free Software Foundation, Inc. + + 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_SHM_H +# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead." +#endif + +#include <bits/types.h> + +/* Permission flag for shmget. */ +#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */ +#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */ + +/* Flags for `shmat'. */ +#define SHM_RDONLY 010000 /* attach read-only else read-write */ +#define SHM_RND 020000 /* round attach address to SHMLBA */ +#define SHM_REMAP 040000 /* take-over region on attach */ + +/* Commands for `shmctl'. */ +#define SHM_LOCK 11 /* lock segment (root only) */ +#define SHM_UNLOCK 12 /* unlock segment (root only) */ + +__BEGIN_DECLS + +/* Segment low boundary address multiple. */ +#define SHMLBA 0x4000 +extern int __getpagesize (void) __THROW __attribute__ ((__const__)); + + +/* Type to count number of attaches. */ +typedef unsigned long int shmatt_t; + +/* Data structure describing a set of semaphores. */ +struct shmid_ds + { + struct ipc_perm shm_perm; /* operation permission struct */ + size_t shm_segsz; /* size of segment in bytes */ + __time_t shm_atime; /* time of last shmat() */ + unsigned long int __unused1; + __time_t shm_dtime; /* time of last shmdt() */ + unsigned long int __unused2; + __time_t shm_ctime; /* time of last change by shmctl() */ + unsigned long int __unused3; + __pid_t shm_cpid; /* pid of creator */ + __pid_t shm_lpid; /* pid of last shmop */ + shmatt_t shm_nattch; /* number of current attaches */ + unsigned long int __unused4; + unsigned long int __unused5; + }; + +#ifdef __USE_MISC + +/* ipcs ctl commands */ +# define SHM_STAT 13 +# define SHM_INFO 14 + +/* shm_mode upper byte flags */ +# define SHM_DEST 01000 /* segment will be destroyed on last detach */ +# define SHM_LOCKED 02000 /* segment will not be swapped */ +# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */ + +struct shminfo + { + unsigned long int shmmax; + unsigned long int shmmin; + unsigned long int shmmni; + unsigned long int shmseg; + unsigned long int shmall; + unsigned long int __unused1; + unsigned long int __unused2; + unsigned long int __unused3; + unsigned long int __unused4; + }; + +struct shm_info + { + int used_ids; + unsigned long int shm_tot; /* total allocated shm */ + unsigned long int shm_rss; /* total resident shm */ + unsigned long int shm_swp; /* total swapped shm */ + unsigned long int swap_attempts; + unsigned long int swap_successes; + }; + +#endif /* __USE_MISC */ + +__END_DECLS diff --git a/libc/sysdeps/linux/nds32/bits/sigcontext.h b/libc/sysdeps/linux/nds32/bits/sigcontext.h new file mode 100644 index 000000000..759b85df1 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/sigcontext.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _BITS_SIGCONTEXT_H +#define _BITS_SIGCONTEXT_H 1 + +#ifndef sigcontext_struct +#define sigcontext_struct sigcontext + +struct sigcontext{ + unsigned long trap_no; + unsigned long error_code; + unsigned long oldmask; + unsigned long nds32_r0; + unsigned long nds32_r1; + unsigned long nds32_r2; + unsigned long nds32_r3; + unsigned long nds32_r4; + unsigned long nds32_r5; + unsigned long nds32_r6; + unsigned long nds32_r7; + unsigned long nds32_r8; + unsigned long nds32_r9; + unsigned long nds32_r10; + unsigned long nds32_r11; + unsigned long nds32_r12; + unsigned long nds32_r13; + unsigned long nds32_r14; + unsigned long nds32_r15; + unsigned long nds32_r16; + unsigned long nds32_r17; + unsigned long nds32_r18; + unsigned long nds32_r19; + unsigned long nds32_r20; + unsigned long nds32_r21; + unsigned long nds32_r22; + unsigned long nds32_r23; + unsigned long nds32_r24; + unsigned long nds32_r25; + unsigned long nds32_fp; //r28 + unsigned long nds32_gp; //r29 + unsigned long nds32_lr; //r30 + unsigned long nds32_sp; //r31 + unsigned long nds32_d1lo; + unsigned long nds32_d1hi; + unsigned long nds32_d0lo; + unsigned long nds32_d0hi; + unsigned long nds32_ipsw; + unsigned long nds32_ipc; + unsigned long fault_address; +}; + +#define sc_pc nds32_ipc /* For sysdeps/generic/profil-counter.h. */ + +#endif /* sigcontext_struct */ + +#endif /* _BITS_SIGCONTEXT_H */ diff --git a/libc/sysdeps/linux/nds32/bits/stackinfo.h b/libc/sysdeps/linux/nds32/bits/stackinfo.h new file mode 100644 index 000000000..b6f851a28 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/stackinfo.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 2001 Free Software Foundation, Inc. + + 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 + +#define _STACK_GROWS_DOWN 1 + +#endif /* _STACKINFO_H */ diff --git a/libc/sysdeps/linux/nds32/bits/stat.h b/libc/sysdeps/linux/nds32/bits/stat.h new file mode 100644 index 000000000..fe25292cb --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/stat.h @@ -0,0 +1,172 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1992, 1995-2001, 2002 Free Software Foundation, Inc. + + 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_STAT_H +# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead." +#endif + +/* Versions of the `struct stat' data structure. */ +#define _STAT_VER_LINUX_OLD 1 +#define _STAT_VER_KERNEL 1 +#define _STAT_VER_SVR4 2 +#define _STAT_VER_LINUX 3 +#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */ + +/* Versions of the `xmknod' interface. */ +#define _MKNOD_VER_LINUX 1 +#define _MKNOD_VER_SVR4 2 +#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */ + + +struct stat + { + __dev_t st_dev; /* Device. */ + unsigned short int __pad1; +#ifndef __USE_FILE_OFFSET64 + __ino_t st_ino; /* File serial number. */ +#else + __ino_t __st_ino; /* 32bit file serial number. */ +#endif + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned short int __pad2; +#ifndef __USE_FILE_OFFSET64 + __off_t st_size; /* Size of file, in bytes. */ +#else + __off64_t st_size; /* Size of file, in bytes. */ +#endif + __blksize_t st_blksize; /* Optimal block size for I/O. */ + +#ifndef __USE_FILE_OFFSET64 + __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */ +#else + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ +#endif +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +# define st_atime st_atim.tv_sec /* Backward compatibility. */ +# define st_mtime st_mtim.tv_sec +# define st_ctime st_ctim.tv_sec +#else + __time_t st_atime; /* Time of last access. */ + unsigned long int st_atimensec; /* Nscecs of last access. */ + __time_t st_mtime; /* Time of last modification. */ + unsigned long int st_mtimensec; /* Nsecs of last modification. */ + __time_t st_ctime; /* Time of last status change. */ + unsigned long int st_ctimensec; /* Nsecs of last status change. */ +#endif +#ifndef __USE_FILE_OFFSET64 + unsigned long int __unused4; + unsigned long int __unused5; +#else + __ino64_t st_ino; /* File serial number. */ +#endif + }; + +#ifdef __USE_LARGEFILE64 +struct stat64 + { + __dev_t st_dev; /* Device. */ + unsigned int __pad1; + + __ino_t __st_ino; /* 32bit file serial number. */ + __mode_t st_mode; /* File mode. */ + __nlink_t st_nlink; /* Link count. */ + __uid_t st_uid; /* User ID of the file's owner. */ + __gid_t st_gid; /* Group ID of the file's group.*/ + __dev_t st_rdev; /* Device number, if device. */ + unsigned int __pad2; + __off64_t st_size; /* Size of file, in bytes. */ + __blksize_t st_blksize; /* Optimal block size for I/O. */ + + __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */ +#ifdef __USE_MISC + /* Nanosecond resolution timestamps are stored in a format + equivalent to 'struct timespec'. This is the type used + whenever possible but the Unix namespace rules do not allow the + identifier 'timespec' to appear in the <sys/stat.h> header. + Therefore we have to handle the use of this header in strictly + standard-compliant sources special. */ + struct timespec st_atim; /* Time of last access. */ + struct timespec st_mtim; /* Time of last modification. */ + struct timespec st_ctim; /* Time of last status change. */ +#else + __time_t st_atime; /* Time of last access. */ + unsigned long int st_atimensec; /* Nscecs of last access. */ + __time_t st_mtime; /* Time of last modification. */ + unsigned long int st_mtimensec; /* Nsecs of last modification. */ + __time_t st_ctime; /* Time of last status change. */ + unsigned long int st_ctimensec; /* Nsecs of last status change. */ +#endif + __ino64_t st_ino; /* File serial number. */ + }; +#endif + +/* Tell code we have these members. */ +#define _STATBUF_ST_BLKSIZE +#define _STATBUF_ST_RDEV +/* Nanosecond resolution time values are supported. */ +#define _STATBUF_ST_NSEC + +/* Encoding of the file mode. */ + +#define __S_IFMT 0170000 /* These bits determine file type. */ + +/* File types. */ +#define __S_IFDIR 0040000 /* Directory. */ +#define __S_IFCHR 0020000 /* Character device. */ +#define __S_IFBLK 0060000 /* Block device. */ +#define __S_IFREG 0100000 /* Regular file. */ +#define __S_IFIFO 0010000 /* FIFO. */ +#define __S_IFLNK 0120000 /* Symbolic link. */ +#define __S_IFSOCK 0140000 /* Socket. */ + +/* POSIX.1b objects. Note that these macros always evaluate to zero. But + they do it by enforcing the correct use of the macros. */ +#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode) +#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode) + +/* Protection bits. */ + +#define __S_ISUID 04000 /* Set user ID on execution. */ +#define __S_ISGID 02000 /* Set group ID on execution. */ +#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */ +#define __S_IREAD 0400 /* Read by owner. */ +#define __S_IWRITE 0200 /* Write by owner. */ +#define __S_IEXEC 0100 /* Execute by owner. */ + +#ifdef __USE_ATFILE +# define UTIME_NOW ((1l << 30) - 1l) +# define UTIME_OMIT ((1l << 30) - 2l) +#endif diff --git a/libc/sysdeps/linux/nds32/bits/syscalls.h b/libc/sysdeps/linux/nds32/bits/syscalls.h new file mode 100644 index 000000000..f69ad4c41 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/syscalls.h @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +#ifndef __ASSEMBLER__ +#include <errno.h> + +#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, err) (-(val)) + +#define X(x) #x +#define Y(x) X(x) + +#define __issue_syscall(syscall_name) \ +" syscall " Y(syscall_name) "; \n" + +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ +(__extension__ \ +({ \ + register long __result __asm__("$r0"); \ + register long _sys_num __asm__("$r8"); \ + \ + LOAD_ARGS_##nr (name, args) \ + _sys_num = (name); \ + \ + __asm__ volatile ( \ + __issue_syscall (name) \ + : "=r" (__result) \ + : "r"(_sys_num) ASM_ARGS_##nr \ + : "$lp", "memory"); \ + __result; \ +}) \ +) + +/* Macros for setting up inline __asm__ input regs */ +#define ASM_ARGS_0 +#define ASM_ARGS_1 ASM_ARGS_0, "r" (__result) +#define ASM_ARGS_2 ASM_ARGS_1, "r" (_arg2) +#define ASM_ARGS_3 ASM_ARGS_2, "r" (_arg3) +#define ASM_ARGS_4 ASM_ARGS_3, "r" (_arg4) +#define ASM_ARGS_5 ASM_ARGS_4, "r" (_arg5) +#define ASM_ARGS_6 ASM_ARGS_5, "r" (_arg6) +#define ASM_ARGS_7 ASM_ARGS_6, "r" (_arg7) + +/* Macros for converting sys-call wrapper args into sys call args */ +#define LOAD_ARGS_0(name, arg) \ + _sys_num = (long) (name); \ + +#define LOAD_ARGS_1(name, arg1) \ + __result = (long) (arg1); \ + LOAD_ARGS_0 (name, arg1) + +/* + * Note that the use of _tmpX might look superflous, however it is needed + * to ensure that register variables are not clobbered if arg happens to be + * a function call itself. e.g. sched_setaffinity() calling getpid() for arg2 + * + * Also this specific order of recursive calling is important to segregate + * the tmp args evaluation (function call case described above) and assigment + * of register variables + */ +#define LOAD_ARGS_2(name, arg1, arg2) \ + long _tmp2 = (long) (arg2); \ + LOAD_ARGS_1 (name, arg1) \ + register long _arg2 __asm__ ("$r1") = _tmp2; + +#define LOAD_ARGS_3(name, arg1, arg2, arg3) \ + long _tmp3 = (long) (arg3); \ + LOAD_ARGS_2 (name, arg1, arg2) \ + register long _arg3 __asm__ ("$r2") = _tmp3; + +#define LOAD_ARGS_4(name, arg1, arg2, arg3, arg4) \ + long _tmp4 = (long) (arg4); \ + LOAD_ARGS_3 (name, arg1, arg2, arg3) \ + register long _arg4 __asm__ ("$r3") = _tmp4; + +#define LOAD_ARGS_5(name, arg1, arg2, arg3, arg4, arg5) \ + long _tmp5 = (long) (arg5); \ + LOAD_ARGS_4 (name, arg1, arg2, arg3, arg4) \ + register long _arg5 __asm__ ("$r4") = _tmp5; + +#define LOAD_ARGS_6(name, arg1, arg2, arg3, arg4, arg5, arg6) \ + long _tmp6 = (long) (arg6); \ + LOAD_ARGS_5 (name, arg1, arg2, arg3, arg4, arg5) \ + register long _arg6 __asm__ ("$r5") = _tmp6; + +#define LOAD_ARGS_7(name, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\ + long _tmp7 = (long) (arg7); \ + LOAD_ARGS_6 (name, arg1, arg2, arg3, arg4, arg5, arg6) \ + register long _arg7 __asm__ ("$r6") = _tmp7; + +#endif /* ! __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ diff --git a/libc/sysdeps/linux/nds32/bits/uClibc_arch_features.h b/libc/sysdeps/linux/nds32/bits/uClibc_arch_features.h new file mode 100644 index 000000000..12e4af9cd --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/uClibc_arch_features.h @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* + * 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 */ +#undef __UCLIBC_ABORT_INSTRUCTION__ + +/* does your target align 64bit values in register pairs ? (32bit arches only) */ +#define __UCLIBC_SYSCALL_ALIGN_64BIT__ + +/* 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 have an asm .set ? */ +#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__ + +/* define if target supports .weak */ +#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__ + +/* define if target supports .weakext */ +#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__ + +/* 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/nds32/bits/uClibc_page.h b/libc/sysdeps/linux/nds32/bits/uClibc_page.h new file mode 100644 index 000000000..0438493db --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/uClibc_page.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _UCLIBC_PAGE_H +#define _UCLIBC_PAGE_H + +/* + * Linux/NDS32 supports 4k and 8k pages (build time). + * + * Although uClibc determines page size dynamically from kernel's auxv + * still the generic code needs a fall back + * _dl_pagesize = auxvt[AT_PAGESZ].a_un.a_val ? : PAGE_SIZE + */ + +#include <features.h> + +#if defined(__CONFIG_NDS32_PAGE_SIZE_8K__) +#define PAGE_SHIFT 13 +#else +#define PAGE_SHIFT 12 +#endif + +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +/* TBD: fix this with runtime value for a PAGE_SIZE agnostic uClibc */ +#define MMAP2_PAGE_SHIFT PAGE_SHIFT + +#endif /* _UCLIBC_PAGE_H */ diff --git a/libc/sysdeps/linux/nds32/bits/wordsize.h b/libc/sysdeps/linux/nds32/bits/wordsize.h new file mode 100644 index 000000000..32301a0b8 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bits/wordsize.h @@ -0,0 +1,23 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1999 Free Software Foundation, Inc. + + 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. */ + +#define __WORDSIZE 32 diff --git a/libc/sysdeps/linux/nds32/brk.c b/libc/sysdeps/linux/nds32/brk.c new file mode 100644 index 000000000..a3c38d9b8 --- /dev/null +++ b/libc/sysdeps/linux/nds32/brk.c @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* brk system call for Linux/NDS32. + Copyright (C) 1995, 1996 Free Software Foundation, Inc. + + 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. */ + +#include <errno.h> +#include <unistd.h> +#include <sys/syscall.h> + +/* This must be initialized data because commons can't have aliases. */ +void *__curbrk attribute_hidden = 0; + +libc_hidden_proto(brk) +int +brk (void *addr) +{ + void *newbrk; + +#ifdef NDS32_ABI_V0 + __asm__ __volatile__ ("move $r0, %1 \n\t" // save the argment in r0 + "pushm $r7, $r8 \n\t" + "sethi $r7, hi20(%2)\n\t" // put the syscall number in r7 + "ori $r7, $r7, lo12(%2)\n\t" + "syscall 0x7fff \n\t" // do the system call + "popm $r7, $r8 \n\t" + "move %0, $r5 \n\t" // keep the return value + : "=r"(newbrk) + : "r"(addr), "i"(SYS_ify(brk)) + : "$r0", "$r5"); +#else + __asm__ __volatile__ ("move $r0, %1 \n\t" // save the argment in r0 + "syscall %2 \n\t" // do the system call + "move %0, $r0 \n\t" // keep the return value + : "=r"(newbrk) + : "r"(addr), "i"(SYS_ify(brk)) + : "$r0"); +#endif + + __curbrk = newbrk; + + if (newbrk < addr) + { + __set_errno (ENOMEM); + return -1; + } + + return 0; +} +libc_hidden_def(brk) diff --git a/libc/sysdeps/linux/nds32/bsd-_setjmp.S b/libc/sysdeps/linux/nds32/bsd-_setjmp.S new file mode 100644 index 000000000..a7ab1c731 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bsd-_setjmp.S @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* This just does a tail-call to `__sigsetjmp (ARG, 0)'. + We cannot do it in C because it must be a tail-call, so frame-unwinding + in setjmp doesn't clobber the state restored by longjmp. */ + +#include <sysdep.h> + +ENTRY(_setjmp) + move $r1, #0 + +/* Make a tail call to __sigsetjmp. */ +#ifdef PIC + /* Initialize $r2 as $gp value. */ + sethi $r2, hi20(_GLOBAL_OFFSET_TABLE_-8) + ori $r2, $r2, lo12(_GLOBAL_OFFSET_TABLE_-4) + mfusr $r15, $pc + add $r2, $r15, $r2 + + ! la $r3, __sigsetjmp@PLT + sethi $r3, hi20(__sigsetjmp@PLT) + ori $r3, $r3, lo12(__sigsetjmp@PLT) + add $r3, $r3, $r2 + + jr $r3 +#else /* NOT PIC */ + la $r15, C_SYMBOL_NAME(__sigsetjmp) + jr $r15 +#endif + +END(_setjmp) +libc_hidden_def(_setjmp) diff --git a/libc/sysdeps/linux/nds32/bsd-setjmp.S b/libc/sysdeps/linux/nds32/bsd-setjmp.S new file mode 100644 index 000000000..b00e62da8 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bsd-setjmp.S @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* This just does a tail-call to `__sigsetjmp (ARG, 1)'. + We cannot do it in C because it must be a tail-call, so frame-unwinding + in setjmp doesn't clobber the state restored by longjmp. */ + +#include <sysdep.h> + +ENTRY(setjmp) + move $r1, #1 + +/* Make a tail call to __sigsetjmp. */ +#ifdef PIC + /* Initialize $r2 as $gp value. */ + sethi $r2, hi20(_GLOBAL_OFFSET_TABLE_-8) + ori $r2, $r2, lo12(_GLOBAL_OFFSET_TABLE_-4) + mfusr $r15, $pc + add $r2, $r15, $r2 + + ! la $r3, __sigsetjmp@PLT + sethi $r3, hi20(__sigsetjmp@PLT) + ori $r3, $r3, lo12(__sigsetjmp@PLT) + add $r3, $r3, $r2 + + jr $r3 +#else /* NOT PIC */ + la $r15, C_SYMBOL_NAME(__sigsetjmp) + jr $r15 +#endif + +END (setjmp) diff --git a/libc/sysdeps/linux/nds32/clone.S b/libc/sysdeps/linux/nds32/clone.S new file mode 100644 index 000000000..5dba17896 --- /dev/null +++ b/libc/sysdeps/linux/nds32/clone.S @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* clone() is even more special than fork() as it mucks with stacks + and invokes a function in the right context after its all over. */ + +#include <sysdep.h> +#include <sys/syscall.h> +#define _ERRNO_H 1 +#include <bits/errno.h> + +/* + int clone(int (*fn)(void *), void *child_stack, int flags, void *arg); + _syscall2(int, clone, int, flags, void *, child_stack) +*/ + +ENTRY(__clone) +#ifdef PIC + /* set GP register to parent only, cause child's $SP will be $r1. */ + pushm $fp, $gp +#ifndef __NDS32_N1213_43U1H__ + mfusr $r15, $PC +#endif + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_+4) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+8) + add $gp, $gp, $r15 +#endif + /* sanity check arguments. */ + beqz $r0, 1f + bnez $r1, 2f + +1: + movi $r0, -EINVAL +5: +#ifdef PIC + /* restore GP register, only in parent's stack */ + popm $fp, $gp + la $r15, C_SYMBOL_NAME(__syscall_error@PLT) + jr $r15 +#else + b C_SYMBOL_NAME(__syscall_error) +#endif + +2: + /* Child's $SP will be $r1, push to child's stack only. */ + addi $r1, $r1, -4 + swi.p $r3, [$r1], -4 ! arg + swi $r0, [$r1] ! fn + + /* do the system call */ + or $r0, $r2, $r2 ! move r0, r2 + __do_syscall(clone) + !syscall (__NR_clone) + beqz $r0, 4f + bltz $r0, 5b + + ! parent +#ifdef PIC + /* restore GP register, only in parent's stack */ + popm $fp, $gp +#endif + ret + +4: + /* Only in child's stack. */ + pop $r1 ! fn + pop $r0 ! arg +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) +#else + addi $sp, $sp, -24 +#endif + ! use r15 in case _exit is PIC +#ifdef __NDS32_N1213_43U1H__ + or $r15, $r1, $r1 ! move r15, r2 +#endif + bral $r1 +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) +#else + addi $sp, $sp, 24 +#endif + ! use r15 in case _exit is PIC +#ifdef PIC + la $r15, C_SYMBOL_NAME(_exit@PLT) + jr $r15 +#else + b C_SYMBOL_NAME(_exit) +#endif + + +PSEUDO_END (__clone) +weak_alias (__clone, clone) diff --git a/libc/sysdeps/linux/nds32/crt1.S b/libc/sysdeps/linux/nds32/crt1.S new file mode 100644 index 000000000..54544010f --- /dev/null +++ b/libc/sysdeps/linux/nds32/crt1.S @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Startup code compliant to the ELF NDS32 ABI */ + +#include <sys/regdef.h> +#include <features.h> +#define BP_SYM(name) name + +/* We need to call: + __uClibc_main (int (*main) (int, char **, char **), int argc, + char **argv, void (*init) (void), void (*fini) (void), + void (*rtld_fini) (void), void *stack_end) +*/ + +.text + .globl _start + .type _start,@function + .type _init,@function + .type _fini,@function +#ifndef __UCLIBC_CTOR_DTOR__ + .weak _init + .weak _fini +#endif + .type main,@function + .type __uClibc_main,@function +#ifdef SHARED +.pic +1: + ret +#endif + +_start: + movi $fp, 0 ! clear FP + lwi $r1, [$sp + 0] ! r1 = argc + addi $r2, $sp, 4 ! r2 = argv + + /* align sp to 8-byte boundary */ + movi $r0, -8 + and $sp, $sp, $r0 + + addi $r6, $sp, 0 ! r6 = stack top + +#ifdef SHARED + /* set gp register */ +#ifdef __NDS32_N1213_43U1H__ + jal 1b + sethi $gp, HI20(_GLOBAL_OFFSET_TABLE_) + ori $gp, $gp, LO12(_GLOBAL_OFFSET_TABLE_ + 4) + add $gp, $lp, $gp +#else + mfusr $r15, $PC + sethi $gp, HI20(_GLOBAL_OFFSET_TABLE_+4) + ori $gp, $gp, LO12(_GLOBAL_OFFSET_TABLE_ + 8) + add $gp, $r15, $gp +#endif + + la $r3, _init@GOTOFF + la $r4, _fini@GOTOFF + la $r0, main@GOT + + /* push everything to stack, r5 is rtld_fini and r7 is garbage */ + pushm $r0, $r7 + + /* now start it up */ + bal __uClibc_main@PLT + + /* should never get here */ + bal abort@PLT +#else + la $gp, _SDA_BASE_ ! init GP for small data access + + la $r3, _init + la $r4, _fini + la $r0, main + + /* push everything to stack, r5 is rtld_fini and r7 is garbage */ + pushm $r0, $r7 + + /* now start it up */ + bal __uClibc_main + + /* should never get here */ + bal abort +#endif + ret + +/* Define a symbol for the first piece of initialized data. */ + .data + .globl __data_start +__data_start: + .long 0 + .weak data_start + data_start = __data_start diff --git a/libc/sysdeps/linux/nds32/crti.S b/libc/sysdeps/linux/nds32/crti.S new file mode 100644 index 000000000..92e5e7175 --- /dev/null +++ b/libc/sysdeps/linux/nds32/crti.S @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + + .pic +#APP + .section .init + .align 2 + .globl _init + .type _init, @function +_init: +.LFB28: + ! Generate instructions for ABI: 1 + ! pretend args size: 0, auto vars size: 0, pushed regs size: 12, outgoing args size: 24 + ! Generate instructions for ABI: 2 + ! pretend args size: 0, auto vars size: 0, pushed regs size: 12, outgoing args size: 0 + ! frame pointer: $fp, needed: yes + ! $fp $gp $lp + ! prologue + .off_16bit + smw.adm $sp,[$sp],$sp,#0x8 + smw.adm $sp,[$sp],$sp,#0x6 + .restore_16bit +#ifdef __NDS32_N1213_43U1H__ + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_+8) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+12) +#else + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_-8) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_-4) + mfusr $ta, $pc +#endif + add $gp, $ta, $gp +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) + addi $sp, $sp, -4 + addi $fp, $sp, 8 +#else + addi $sp, $sp, -28 + addi $fp, $sp, 32 +#endif + ! end of prologue +#APP + .align 2 + + .section .fini + .align 2 + .globl _fini + .type _fini, @function +_fini: +.LFB29: + ! Generate instructions for ABI: 1 + ! pretend args size: 0, auto vars size: 0, pushed regs size: 12, outgoing args size: 24 + ! Generate instructions for ABI: 2 + ! pretend args size: 0, auto vars size: 0, pushed regs size: 12, outgoing args size: 0 + ! frame pointer: $fp, needed: yes + ! $fp $gp $lp + ! prologue + .off_16bit + smw.adm $sp,[$sp],$sp,#0x8 + smw.adm $sp,[$sp],$sp,#0x6 + .restore_16bit +#ifdef __NDS32_N1213_43U1H__ + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_+8) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+12) +#else + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_-8) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_-4) + mfusr $ta, $pc +#endif + add $gp, $ta, $gp +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) + addi $sp, $sp, -4 + addi $fp, $sp, 8 +#else + addi $sp, $sp, -28 + addi $fp, $sp, 32 +#endif + ! end of prologue +#APP + .align 2 + .ident "GCC: (GNU) 3.4.4" diff --git a/libc/sysdeps/linux/nds32/crtn.S b/libc/sysdeps/linux/nds32/crtn.S new file mode 100644 index 000000000..7cc543e20 --- /dev/null +++ b/libc/sysdeps/linux/nds32/crtn.S @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + + .pic +#APP + .section .init + ! epilogue + addi $sp,$fp,#-4 + lmw.bim $sp,[$sp],$sp,#0x6 + lwi.bi $fp,[$sp],#4 + ret +.LFE28: + .section .fini +#NO_APP + ! epilogue + addi $sp,$fp,#-4 + lmw.bim $sp,[$sp],$sp,#0x6 + lwi.bi $fp,[$sp],#4 + ret +.LFE29: +#APP + .ident "GCC: (GNU) 3.4.4" diff --git a/libc/sysdeps/linux/nds32/jmpbuf-offsets.h b/libc/sysdeps/linux/nds32/jmpbuf-offsets.h new file mode 100644 index 000000000..e88278f62 --- /dev/null +++ b/libc/sysdeps/linux/nds32/jmpbuf-offsets.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Private macros for accessing __jmp_buf contents. NDS32 version. + Copyright (C) 2006 Free Software Foundation, Inc. + + 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, see + <http://www.gnu.org/licenses/>. */ + +/* +r6 r7 r8 r9 r10 r11 r12 r13 r14 r16 r17 r18 r19 r28 r29 r30 r31 + 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 +*/ + +#define __JMP_BUF_SP 12 diff --git a/libc/sysdeps/linux/nds32/jmpbuf-unwind.h b/libc/sysdeps/linux/nds32/jmpbuf-unwind.h new file mode 100644 index 000000000..14a302969 --- /dev/null +++ b/libc/sysdeps/linux/nds32/jmpbuf-unwind.h @@ -0,0 +1,12 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <setjmp.h> +#include <jmpbuf-offsets.h> + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) &(jmpbuf)[0].__regs[__JMP_BUF_SP]) diff --git a/libc/sysdeps/linux/nds32/mmap.S b/libc/sysdeps/linux/nds32/mmap.S new file mode 100644 index 000000000..351d1c502 --- /dev/null +++ b/libc/sysdeps/linux/nds32/mmap.S @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc. + + 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. */ + +#include <sys/syscall.h> +#include <sysdep.h> + .text + +.globl __mmap +ENTRY (__mmap) + +#ifdef PIC +.pic +#endif + + // reserve space for r0, r1 +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) +#else + addi $sp, $sp, -8 +#endif + // change to units of the system page size + srli $r5, $r5, 0xc + + syscall SYS_ify(mmap2) +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) +#else + addi $sp, $sp, 8 +#endif + + /* r0 is < -4096 if there was an error. */ + bgez $r0, 1f + sltsi $r1,$r0,-4096 + beqz $r1,2f + +1: + ret +2: +#ifdef PIC +#ifdef __NDS32_N1213_43U1H__ + ! save lp + addi $r2, $lp, 0 + + ! set r1 as gp + jal 1b + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_) + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+4) + add $r1, $lp, $r1 + + ! restore lp + addi $lp, $r2, 0 + + ! r15=SYSCALL_ERROR@PLT + sethi $r15, hi20(SYSCALL_ERROR@PLT) + ori $r15, $r15, lo12(SYSCALL_ERROR@PLT) + add $r15, $r15, $r1 + + ! jump to SYSCALL_ERROR + jr $r15 +#else + ! set r1 as gp + mfusr $r15, $PC + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_+4) + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+8) + add $r1, $r1, $r15 + + ! r15=SYSCALL_ERROR@PLT + sethi $r15, hi20(SYSCALL_ERROR@PLT) + ori $r15, $r15, lo12(SYSCALL_ERROR@PLT) + add $r15, $r15, $r1 + + ! jump to SYSCALL_ERROR + jr $r15 +#endif +#else + j SYSCALL_ERROR +#endif + +ret + +PSEUDO_END (__mmap) + +weak_alias (__mmap, mmap) +libc_hidden_def(mmap) diff --git a/libc/sysdeps/linux/nds32/setjmp.S b/libc/sysdeps/linux/nds32/setjmp.S new file mode 100644 index 000000000..8cb9adbeb --- /dev/null +++ b/libc/sysdeps/linux/nds32/setjmp.S @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* + setjmp/longjmp for nds32. + r0 - r5 are for paramter passing - no need to save + r6 - r14 are callee saved - needs to save + r15 is temp register for assembler - no need to save + r16 - r25 are caller saved - no need to save + r26 - r27 are temp registers for OS - no need to save + r28 is fp - need to save + r29 is gp - need to save + r30 is ra - need to save + r31 is sp - need to save + so we need to save r6 - r14 and r28 - r31 + The jmpbuf looks like this: + r6 + r7 + r8 + r9 + r10 + r11 + r12 + r13 + r14 + fp + gp + ra + sp +#ifdef NDS32_ABI_2FP_PLUS + ($fpcfg.freg) + (callee-saved FPU regs) +#endif + reserved(for 8-byte align if needed) +*/ + +#include <sysdep.h> +#define _SETJMP_H +#define _ASM +#include <bits/setjmp.h> + .section .text + +ENTRY(__sigsetjmp) + move $r2, $r0 +.off_16bit + ! save registers into buffer + smw.bim $r6, [$r2], $r14, #0xf +.restore_16bit + +#ifdef NDS32_ABI_2FP_PLUS +/* Process for FPU registers. */ + fmfcfg $r20 /* Keep $fpcfg in $r20. */ + slli $r20, $r20, #28 + srli $r20, $r20, #30 /* Set $r20 as $fpcfg.freg. */ + swi.bi $r20, [$r2], #4 + + /* Case switch for $r20 as $fpcfg.freg. */ + beqz $r20, .LCFG0 /* Branch if $fpcfg.freg = 0b00. */ + xori $r15, $r20, #0b10 + beqz $r15, .LCFG2 /* Branch if $fpcfg.freg = 0b10. */ + srli $r20, $r20, #0b01 + beqz $r20, .LCFG1 /* Branch if $fpcfg.freg = 0b01. */ + /* Fall-through if $fpcfg.freg = 0b11. */ +.LCFG3: + fsdi.bi $fd31, [$r2], #8 + fsdi.bi $fd30, [$r2], #8 + fsdi.bi $fd29, [$r2], #8 + fsdi.bi $fd28, [$r2], #8 + fsdi.bi $fd27, [$r2], #8 + fsdi.bi $fd26, [$r2], #8 + fsdi.bi $fd25, [$r2], #8 + fsdi.bi $fd24, [$r2], #8 +.LCFG2: + fsdi.bi $fd10, [$r2], #8 + fsdi.bi $fd9, [$r2], #8 + fsdi.bi $fd8, [$r2], #8 +.LCFG1: + fsdi.bi $fd7, [$r2], #8 + fsdi.bi $fd6, [$r2], #8 + fsdi.bi $fd5, [$r2], #8 + fsdi.bi $fd4, [$r2], #8 +.LCFG0: + fsdi.bi $fd3, [$r2], #8 +#endif /* NDS32_ABI_2FP_PLUS */ + + +/* Make a tail call to __sigjmp_save. */ +#ifdef PIC + /* Initialize $r2 as $gp value. */ + sethi $r2, hi20(_GLOBAL_OFFSET_TABLE_-8) + ori $r2, $r2, lo12(_GLOBAL_OFFSET_TABLE_-4) + mfusr $r15, $pc + add $r2, $r15, $r2 + + ! la $r3, __sigjmp_save@PLT + sethi $r3, hi20(__sigjmp_save@PLT) + ori $r3, $r3, lo12(__sigjmp_save@PLT) + add $r3, $r3, $r2 + + jr $r3 +#else /* NOT PIC */ + la $r15, C_SYMBOL_NAME(__sigjmp_save) + jr $r15 +#endif + +END(__sigsetjmp) +hidden_def(__sigsetjmp) diff --git a/libc/sysdeps/linux/nds32/sigaction.c b/libc/sysdeps/linux/nds32/sigaction.c new file mode 100644 index 000000000..1a24c49b4 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sigaction.c @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <errno.h> +#include <signal.h> +#include <sys/syscall.h> +#include <string.h> +#include <bits/kernel_sigaction.h> + +#define SA_RESTORER 0x04000000 + +extern void __default_sa_restorer(void); + +int __libc_sigaction(int sig, const struct sigaction *act, + struct sigaction *oact) +{ + struct sigaction kact; + + if (act && !(act->sa_flags & SA_RESTORER)) { + memcpy(&kact, act, sizeof(kact)); + kact.sa_restorer = __default_sa_restorer; + kact.sa_flags |= SA_RESTORER; + act = &kact; + } + /* NB: kernel (as of 2.6.25) will return EINVAL + * if sizeof(act->sa_mask) does not match kernel's sizeof(sigset_t) */ + return __syscall_rt_sigaction(sig, act, oact, sizeof(act->sa_mask)); +} + +#ifndef LIBC_SIGACTION +# ifndef __UCLIBC_HAS_THREADS__ +strong_alias(__libc_sigaction,sigaction) +libc_hidden_def(sigaction) +# else +weak_alias(__libc_sigaction,sigaction) +libc_hidden_weak(sigaction) +# endif +#endif diff --git a/libc/sysdeps/linux/nds32/sigrestorer.S b/libc/sysdeps/linux/nds32/sigrestorer.S new file mode 100644 index 000000000..bf6188656 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sigrestorer.S @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1999 Free Software Foundation, Inc. + + 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. */ + +#include <sysdep.h> +#include <sys/syscall.h> + +/* If no SA_RESTORER function was specified by the application we use + one of these. This avoids the need for the kernel to synthesise a return + instruction on the stack, which would involve expensive cache flushes. */ + +ENTRY(__default_sa_restorer) + /* DO NOT SAVE r7 INTO STACK, THIS SYSCALL NEVER RETURN */ + syscall SYS_ify(sigreturn) +END(__default_sa_restorer) + +#ifdef __NR_rt_sigreturn + +ENTRY(__default_rt_sa_restorer) + /* DO NOT SAVE r7 INTO STACK, THIS SYSCALL NEVER RETURN */ + syscall SYS_ify(rt_sigreturn) +END(__default_rt_sa_restorer) + +#endif diff --git a/libc/sysdeps/linux/nds32/sys/elf.h b/libc/sysdeps/linux/nds32/sys/elf.h new file mode 100644 index 000000000..519948641 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/elf.h @@ -0,0 +1,13 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#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/nds32/sys/io.h b/libc/sysdeps/linux/nds32/sys/io.h new file mode 100644 index 000000000..68639902c --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/io.h @@ -0,0 +1,48 @@ +/* Copyright (C) 1996, 1998, 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. */ + +#ifndef _SYS_IO_H + +#define _SYS_IO_H 1 +#include <features.h> + +__BEGIN_DECLS + +/* If TURN_ON is TRUE, request for permission to do direct i/o on the + port numbers in the range [FROM,FROM+NUM-1]. Otherwise, turn I/O + permission off for that range. This call requires root privileges. */ +extern int ioperm (unsigned long int __from, unsigned long int __num, + int __turn_on) __THROW; + +/* Set the I/O privilege level to LEVEL. If LEVEL is nonzero, + permission to access any I/O port is granted. This call requires + root privileges. */ +extern int iopl (int __level) __THROW; + +/* The functions that actually perform reads and writes. */ +extern unsigned char inb (unsigned long int port) __THROW; +extern unsigned short int inw (unsigned long int port) __THROW; +extern unsigned long int inl (unsigned long int port) __THROW; + +extern void outb (unsigned char value, unsigned long int port) __THROW; +extern void outw (unsigned short value, unsigned long int port) __THROW; +extern void outl (unsigned long value, unsigned long int port) __THROW; + +__END_DECLS + +#endif /* _SYS_IO_H */ diff --git a/libc/sysdeps/linux/nds32/sys/procfs.h b/libc/sysdeps/linux/nds32/sys/procfs.h new file mode 100644 index 000000000..f39a36990 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/procfs.h @@ -0,0 +1,127 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1996, 1997, 1999, 2001 Free Software Foundation, Inc. + + 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/nds32/sys/ptrace.h b/libc/sysdeps/linux/nds32/sys/ptrace.h new file mode 100644 index 000000000..3ca259ae3 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/ptrace.h @@ -0,0 +1,133 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* `ptrace' debugger support interface. Linux version. + Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + + 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_PTRACE_H +#define _SYS_PTRACE_H 1 + +#include <features.h> + +__BEGIN_DECLS + +/* Type of the REQUEST argument to `ptrace.' */ +enum __ptrace_request +{ + /* Indicate that the process making this request should be traced. + All signals received by this process can be intercepted by its + parent, and its parent can use the other `ptrace' requests. */ + PTRACE_TRACEME = 0, +#define PT_TRACE_ME PTRACE_TRACEME + + /* Return the word in the process's text space at address ADDR. */ + PTRACE_PEEKTEXT = 1, +#define PT_READ_I PTRACE_PEEKTEXT + + /* Return the word in the process's data space at address ADDR. */ + PTRACE_PEEKDATA = 2, +#define PT_READ_D PTRACE_PEEKDATA + + /* Return the word in the process's user area at offset ADDR. */ + PTRACE_PEEKUSER = 3, +#define PT_READ_U PTRACE_PEEKUSER + + /* Write the word DATA into the process's text space at address ADDR. */ + PTRACE_POKETEXT = 4, +#define PT_WRITE_I PTRACE_POKETEXT + + /* Write the word DATA into the process's data space at address ADDR. */ + PTRACE_POKEDATA = 5, +#define PT_WRITE_D PTRACE_POKEDATA + + /* Write the word DATA into the process's user area at offset ADDR. */ + PTRACE_POKEUSER = 6, +#define PT_WRITE_U PTRACE_POKEUSER + + /* Continue the process. */ + PTRACE_CONT = 7, +#define PT_CONTINUE PTRACE_CONT + + /* Kill the process. */ + PTRACE_KILL = 8, +#define PT_KILL PTRACE_KILL + + /* Single step the process. + This is not supported on all machines. */ + PTRACE_SINGLESTEP = 9, +#define PT_STEP PTRACE_SINGLESTEP + + /* Get all general purpose registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETREGS = 12, +#define PT_GETREGS PTRACE_GETREGS + + /* Set all general purpose registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETREGS = 13, +#define PT_SETREGS PTRACE_SETREGS + + /* Get all floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETFPREGS = 14, +#define PT_GETFPREGS PTRACE_GETFPREGS + + /* Set all floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETFPREGS = 15, +#define PT_SETFPREGS PTRACE_SETFPREGS + + /* Attach to a process that is already running. */ + PTRACE_ATTACH = 16, +#define PT_ATTACH PTRACE_ATTACH + + /* Detach from a process attached to with PTRACE_ATTACH. */ + PTRACE_DETACH = 17, +#define PT_DETACH PTRACE_DETACH + + /* Get all extended floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETFPXREGS = 18, +#define PT_GETFPXREGS PTRACE_GETFPXREGS + + /* Set all extended floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETFPXREGS = 19, +#define PT_SETFPXREGS PTRACE_SETFPXREGS + + /* Continue and stop at the next (return from) syscall. */ + PTRACE_SYSCALL = 24 +#define PT_SYSCALL PTRACE_SYSCALL +}; + +/* Perform process tracing functions. REQUEST is one of the values + above, and determines the action to be taken. + For all requests except PTRACE_TRACEME, PID specifies the process to be + traced. + + PID and the other arguments described above for the various requests should + appear (those that are used for the particular request) as: + pid_t PID, void *ADDR, int DATA, void *ADDR2 + after REQUEST. */ +extern long int ptrace (enum __ptrace_request __request, ...) __THROW; + +__END_DECLS + +#endif /* _SYS_PTRACE_H */ diff --git a/libc/sysdeps/linux/nds32/sys/regdef.h b/libc/sysdeps/linux/nds32/sys/regdef.h new file mode 100644 index 000000000..e37dcdd62 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/regdef.h @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1997, 1998, 2002, 2003, 2004 Free Software Foundation, Inc. + Contributed by Ralf Baechle <ralf@gnu.org>. + + 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_REGDEF_H +#define _SYS_REGDEF_H + +/* + * Symbolic register names for 32 bit ABI + */ +#define o0 r0 /* arguments r0 ~ r5 */ +#define o1 r1 +#define o2 r2 +#define o3 r3 +#define o4 r4 +#define o5 r5 +#define o6 r6 +#define o7 r7 + +#define h0 r0 /* arguments r0 ~ r5 */ +#define h1 r1 +#define h2 r2 +#define h3 r3 +#define h4 r4 +#define h5 r5 +#define h6 r6 +#define h7 r7 +#define h8 r8 +#define h9 r9 +#define h10 r10 +#define h11 r11 +#define h12 r16 +#define h13 r17 +#define h14 r18 +#define h15 r19 + +#define a0 r0 /* arguments r0 ~ r5 */ +#define a1 r1 +#define a2 r2 +#define a3 r3 +#define a4 r4 +#define a5 r5 +#define s0 r6 +#define s1 r7 +#define s2 r8 +#define s3 r9 +#define s4 r10 +#define s5 r11 +#define s6 r12 +#define s7 r13 +#define s8 r14 +#define ta r15 +#define t0 r16 +#define t1 r17 +#define t2 r18 +#define t3 r19 +#define t4 r20 +#define t5 r21 +#define t6 r22 +#define t7 r23 +#define t8 r24 +#define t9 r25 +#define p0 r26 +#define p1 r27 +#define r28 fp +#define s9 r28 +#define r29 gp +#define r30 ra +#define r31 sp + +#endif /* _SYS_REGDEF_H */ diff --git a/libc/sysdeps/linux/nds32/sys/ucontext.h b/libc/sysdeps/linux/nds32/sys/ucontext.h new file mode 100644 index 000000000..4dca27fd5 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/ucontext.h @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> +#include <sys/procfs.h> + +typedef int greg_t; + +/* Number of general registers. */ +#define NGREG 32 + +/* 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 + R16 = 16, +#define R16 R16 + R17 = 17, +#define R17 R17 + R18 = 18, +#define R18 R18 + R19 = 19, +#define R19 R19 + R20 = 20, +#define R20 R20 + R21 = 21, +#define R21 R21 + R22 = 22, +#define R22 R22 + R23 = 23, +#define R23 R23 + R24 = 24, +#define R24 R24 + R25 = 25, +#define R25 R25 + R26 = 26, +#define R26 R26 + R27 = 27, +#define R27 R27 + R28 = 28, +#define R28 R28 + R29 = 29, +#define R29 R29 + R30 = 30, +#define R30 R30 + R31 = 31 +#define R31 R31 + +}; + +/* Structure to describe FPU registers. */ +typedef elf_fpregset_t fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + gregset_t gregs; + fpregset_t fpregs; + } mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_link; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + long int uc_filler[5]; + } ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/libc/sysdeps/linux/nds32/sys/user.h b/libc/sysdeps/linux/nds32/sys/user.h new file mode 100644 index 000000000..ca5896d1f --- /dev/null +++ b/libc/sysdeps/linux/nds32/sys/user.h @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + + 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_USER_H +#define _SYS_USER_H 1 + +/* 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. */ + +struct user_fpregs +{ + struct fp_reg + { + unsigned int sign1:1; + unsigned int unused:15; + unsigned int sign2:1; + unsigned int exponent:14; + unsigned int j:1; + unsigned int mantissa1:31; + unsigned int mantissa0:32; + } fpregs[8]; + unsigned int fpsr:32; + unsigned int fpcr:32; + unsigned char ftype[8]; + unsigned int init_flag; +}; + +struct user_regs +{ + unsigned long int uregs[18]; +}; + +struct user +{ + struct user_regs regs; /* General registers */ + int u_fpvalid; /* True if math co-processor being used. */ + + unsigned long int u_tsize; /* Text segment size (pages). */ + unsigned long int u_dsize; /* Data segment size (pages). */ + unsigned long int u_ssize; /* Stack segment size (pages). */ + + unsigned long start_code; /* Starting virtual address of text. */ + unsigned long start_stack; /* Starting virtual address of stack. */ + + long int signal; /* Signal that caused the core dump. */ + int reserved; /* No longer used */ + struct user_regs *u_ar0; /* help gdb to find the general registers. */ + + unsigned long magic; /* uniquely identify a core file */ + char u_comm[32]; /* User command that was responsible */ + int u_debugreg[8]; + struct user_fpregs u_fp; /* Floating point registers */ + struct user_fpregs *u_fp0; /* help gdb to find the FP registers. */ +}; + +#include <bits/uClibc_page.h> +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_DATA_START_ADDR (u.start_data) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif /* sys/user.h */ diff --git a/libc/sysdeps/linux/nds32/syscall.S b/libc/sysdeps/linux/nds32/syscall.S new file mode 100644 index 000000000..032c643fd --- /dev/null +++ b/libc/sysdeps/linux/nds32/syscall.S @@ -0,0 +1,60 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <sys/syscall.h> +#include <sysdep.h> + + .text +#ifdef PIC + .pic +#endif + .align 2 + + +#ifdef PIC +#ifdef __NDS32_N1213_43U1H__ +1: + ret +99: + addi $r2, $lp, 0 + jal 1b + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_) + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+4) + add $r1, $lp, $r1 + addi $lp, $r2, 0 +#else /* !__NDS32_N1213_43U1H__ */ +99: + mfusr $r15, $PC + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_ + 4) + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_ + 8) + add $r1, $r15, $r1 +#endif /* end of __NDS32_N1213_43U1H__ */ + sethi $r15, hi20(__syscall_error@PLT) + ori $r15, $r15, lo12(__syscall_error@PLT) + add $r15, $r15, $r1 + jr $r15 +#else /* !PIC */ +99: + j __syscall_error +#endif /* end of PIC */ + +#ifdef PIC + .pic +#endif + + .align 2 + .globl syscall + .func syscall + .type syscall, @function + +syscall: + syscall __NR_syscall + bgez $r0, 2f + sltsi $r1, $r0, -4096; + beqz $r1, 99b; +2: + ret + .endfunc + .size syscall, .-syscall diff --git a/libc/sysdeps/linux/nds32/sysdep.S b/libc/sysdeps/linux/nds32/sysdep.S new file mode 100644 index 000000000..4e86a26e0 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sysdep.S @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1991-2003 Free Software Foundation, Inc. + + 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. */ + +#include <sysdep.h> +#define _ERRNO_H +#include <bits/errno.h> + +.text + +.globl C_SYMBOL_NAME(errno) +.globl __syscall_error + +ENTRY (__syscall_error) +#ifdef OLD_ABI + subri $r5, $r5, #0 +#else + subri $r0, $r0, #0 +#endif + +#define __syscall_error __syscall_error_1 + +#undef syscall_error +#ifdef NO_UNDERSCORES +__syscall_error: +#else +syscall_error: +#endif + +#ifdef PIC + /* set GP register */ + pushm $gp, $lp +#ifdef __NDS32_N1213_43U1H__ + jal 2f + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+4) + add $gp, $gp, $lp +#else + mfusr $r15, $PC + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_+4) + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+8) + add $gp, $gp, $r15 +#endif +#endif + +#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN + /* We translate the system's EWOULDBLOCK error into EAGAIN. + The GNU C library always defines EWOULDBLOCK==EAGAIN. + EWOULDBLOCK_sys is the original number. */ + push $t0 + li $t0, EWOULDBLOCK_sys + bne $r0, $t0, 1f + pop $t0 + li $r0, EAGAIN +1: +#endif + +#ifdef _LIBC_REENTRANT + push $lp + push $r0 +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) +#else + addi $sp, $sp, -24 +#endif + +#ifdef PIC + bal C_SYMBOL_NAME(__errno_location@PLT) +#else + bal C_SYMBOL_NAME(__errno_location) +#endif +#if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) +#else + addi $sp, $sp, 24 +#endif + pop $r1 + + swi $r1, [$r0] + li $r0, -1 + pop $lp +#ifdef PIC + /* restore GP register */ + popm $gp, $lp +#endif +2: + ret +#else +#ifndef PIC + l.w $r1, .L1 + swi $r0, [$r1] + li $r0, -1 + ret + +.L1: .long C_SYMBOL_NAME(errno) +#else + s.w $r0, errno@GOTOFF + li $r0, -1 + + /* restore GP register */ + popm $gp, $lp +2: + ret + +#endif +#endif + +#undef __syscall_error +END (__syscall_error) diff --git a/libc/sysdeps/linux/nds32/sysdep.h b/libc/sysdeps/linux/nds32/sysdep.h new file mode 100644 index 000000000..7472a99d4 --- /dev/null +++ b/libc/sysdeps/linux/nds32/sysdep.h @@ -0,0 +1,271 @@ +//#include <sysdeps/generic/sysdep.h> +#ifdef __ASSEMBLER__ +/* Define an entry point visible from C. */ +#ifdef PIC +#define ENTRY(name) \ + .pic \ + .align 2; \ + .globl C_SYMBOL_NAME(name); \ + .func C_SYMBOL_NAME(name); \ + .type C_SYMBOL_NAME(name), @function; \ +C_SYMBOL_NAME(name): +#else +#define ENTRY(name) \ + .align 2; \ + .globl C_SYMBOL_NAME(name); \ + .func C_SYMBOL_NAME(name); \ + .type C_SYMBOL_NAME(name), @function; \ +C_SYMBOL_NAME(name): +#endif + +#undef END +#define END(name) \ + .endfunc; \ + .size C_SYMBOL_NAME(name), .-C_SYMBOL_NAME(name) + +/* If compiled for profiling, call `mcount' at the start of each function. */ +#ifdef HAVE_ELF + #undef NO_UNDERSCORES + #define NO_UNDERSCORES +#endif + +#ifdef NO_UNDERSCORES + #define syscall_error __syscall_error +#endif + +#define SYS_ify(syscall_name) (__NR_##syscall_name) + +#define __do_syscall(syscall_name) \ + syscall SYS_ify(syscall_name); + +#define SYSCALL_ERROR_HANDLER +#define SYSCALL_ERROR __syscall_error + + +#ifdef PIC +#ifdef __NDS32_N1213_43U1H__ +#ifdef NDS_ABI_V0 +#define PSEUDO(name, syscall_name, args) \ + .pic; \ + .align 2; \ + 1: ret; \ + 99: addi $r0, $lp, 0; \ + jal 1b; \ + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_); \ + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+4); \ + add $r1, $lp, $r1; \ + addi $lp, $r0, 0; \ + sethi $r15, hi20(SYSCALL_ERROR@PLT); \ + ori $r15, $r15, lo12(SYSCALL_ERROR@PLT); \ + add $r15, $r15, $r1; \ + jr $r15; \ + nop; \ + ENTRY(name); \ + __do_syscall(syscall_name); \ + bgez $r5, 2f; \ + sltsi $r0, $r5, -4096; \ + beqz $r0, 99b; \ + 2: +#else +#define PSEUDO(name, syscall_name, args) \ + .pic; \ + .align 2; \ + 1: ret; \ + 99: addi $r2, $lp, 0; \ + jal 1b; \ + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_); \ + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+4); \ + add $r1, $lp, $r1; \ + addi $lp, $r2, 0; \ + sethi $r15, hi20(SYSCALL_ERROR@PLT); \ + ori $r15, $r15, lo12(SYSCALL_ERROR@PLT); \ + add $r15, $r15, $r1; \ + jr $r15; \ + nop; \ + ENTRY(name); \ + __do_syscall(syscall_name); \ + bgez $r0, 2f; \ + sltsi $r1, $r0, -4096; \ + beqz $r1, 99b; \ + 2: +#endif +#else +#define PSEUDO(name, syscall_name, args) \ + .pic; \ + .align 2; \ + 99: mfusr $r15, $PC; \ + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_ + 4); \ + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_ + 8); \ + add $r1, $r15, $r1; \ + sethi $r15, hi20(SYSCALL_ERROR@PLT); \ + ori $r15, $r15, lo12(SYSCALL_ERROR@PLT); \ + add $r15, $r15, $r1; \ + jr $r15; \ + nop; \ + ENTRY(name); \ + __do_syscall(syscall_name); \ + bgez $r0, 2f; \ + sltsi $r1, $r0, -4096; \ + beqz $r1, 99b; \ + 2: +#endif +#else +#ifdef OLD2_ABI +#define PSEUDO(name, syscall_name, args) \ + .align 2; \ + 99: j SYSCALL_ERROR; \ + nop; \ + ENTRY(name); \ + __do_syscall(syscall_name); \ + bgez $r5, 2f; \ + sltsi $r0, $r5, -4096; \ + beqz $r0, 99b; \ + 2: +#else +#define PSEUDO(name, syscall_name, args) \ + .align 2; \ + 99: j SYSCALL_ERROR; \ + nop; \ + ENTRY(name); \ + __do_syscall(syscall_name); \ + bgez $r0, 2f; \ + sltsi $r1, $r0, -4096; \ + beqz $r1, 99b; \ + 2: +#endif +#endif + + +#define PSEUDO_NOERRNO(name, syscall_name, args) \ + ENTRY(name); \ + __do_syscall(syscall_name); + +#undef PSEUDO_END +#define PSEUDO_END(sym) \ + SYSCALL_ERROR_HANDLER \ + END(sym) + +#undef PSEUDO_END_ERRVAL +#define PSEUDO_END_ERRVAL(sym) END(sym) + +#define PSEUDO_ERRVAL(name, syscall_name, args) PSEUDO_NOERRNO(name, syscall_name, args) + +#define ret_ERRVAL ret + +#define ret_NOERRNO ret +#if defined NOT_IN_libc + #define SYSCALL_ERROR __local_syscall_error + #ifdef PIC + #ifdef __NDS32_N1213_43U1H__ + #ifdef NDS_ABI_V0 + #define SYSCALL_ERROR_HANDLER \ + __local_syscall_error: pushm $gp, $lp, $sp; \ + jal 1f; \ + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_); \ + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+4); \ + add $gp, $gp, $lp; \ + neg $r5, $r5; \ + push $r5; \ + addi $sp, $sp, -28; \ + bal C_SYMBOL_NAME(__errno_location@PLT); \ + addi $sp, $sp, 28; \ + pop $r1; \ + swi $r1, [$r5]; \ + li $r5, -1; \ + popm $gp, $lp, $sp; \ + 1: ret; + #else + #define SYSCALL_ERROR_HANDLER \ + __local_syscall_error: pushm $gp, $lp, $sp; \ + jal 1f; \ + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_); \ + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+4); \ + add $gp, $gp, $lp; \ + neg $r0, $r0; \ + push $r0; \ + #if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) \ + addi $sp, $sp, -4; \ + #else \ + addi $sp, $sp, -28; \ + #endif \ + bal C_SYMBOL_NAME(__errno_location@PLT); \ + #if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) \ + addi $sp, $sp, 4; \ + #else \ + addi $sp, $sp, 28; \ + #endif \ + pop $r1; \ + swi $r1, [$r0]; \ + li $r0, -1; \ + popm $gp, $lp, $sp; \ + 1: ret; + #endif + #else + #define SYSCALL_ERROR_HANDLER \ + __local_syscall_error: pushm $gp, $lp, $sp; \ + mfusr $r15, $PC; \ + sethi $gp, hi20(_GLOBAL_OFFSET_TABLE_+4); \ + ori $gp, $gp, lo12(_GLOBAL_OFFSET_TABLE_+8); \ + add $gp, $gp, $r15; \ + neg $r0, $r0; \ + push $r0; \ + #if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) \ + addi $sp, $sp, -4; \ + #else \ + addi $sp, $sp, -28; \ + #endif \ + bal C_SYMBOL_NAME(__errno_location@PLT); \ + #if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) \ + addi $sp, $sp, 4; \ + #else \ + addi $sp, $sp, 28; \ + #endif \ + pop $r1; \ + swi $r1, [$r0]; \ + li $r0, -1; \ + popm $gp, $lp, $sp; \ + 1: ret; + #endif + #else + #ifdef NDS_ABI_V0 + #define SYSCALL_ERROR_HANDLER \ + __local_syscall_error: push $lp; \ + neg $r5, $r5; \ + push $r5; \ + addi $sp, $sp, -28; \ + bal C_SYMBOL_NAME(__errno_location); \ + addi $sp, $sp, 28; \ + pop $r1; \ + swi $r1, [$r5]; \ + li $r5, -1; \ + pop $lp; \ + ret; + #else + #define SYSCALL_ERROR_HANDLER \ + __local_syscall_error: push $lp; \ + neg $r0, $r0; \ + push $r0; \ + #if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) \ + addi $sp, $sp, -4; \ + #else \ + addi $sp, $sp, -28; \ + #endif \ + bal C_SYMBOL_NAME(__errno_location); \ + #if defined(NDS32_ABI_2) || defined(NDS32_ABI_2FP) \ + addi $sp, $sp, 4; \ + #else \ + addi $sp, $sp, 28; \ + #endif \ + pop $r1; \ + swi $r1, [$r0]; \ + li $r0, -1; \ + pop $lp; \ + ret; + #endif + #endif + +#else + #define SYSCALL_ERROR_HANDLER + #define SYSCALL_ERROR __syscall_error +#endif +#endif /* __ASSEMBLER__ */ diff --git a/libc/sysdeps/linux/nds32/vfork.S b/libc/sysdeps/linux/nds32/vfork.S new file mode 100644 index 000000000..c955359fb --- /dev/null +++ b/libc/sysdeps/linux/nds32/vfork.S @@ -0,0 +1,87 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. + Contributed by Philip Blundell <philb@gnu.org>. + + 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. */ + +#include <sys/syscall.h> +#include <sysdep.h> + +#define _ERRNO_H 1 + +/* Clone the calling process, but without copying the whole address space. + The calling process is suspended until the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ + +ENTRY (__vfork) +#ifdef PIC +.pic +#endif + +#ifdef __NR_vfork + + syscall __NR_vfork + bltz $r0, 2f +1: + ret +2: + sltsi $r1, $r0, -4096 + bnez $r1, 1b; + +# ifdef PIC + #ifdef __NDS32_N1213_43U1H__ + ! save lp + addi $r2, $lp, 0 + + ! set r1 as gp + jal 1b + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_) + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+4) + add $r1, $lp, $r1 + + ! restore lp + addi $lp, $r2, 0 + #else + ! set r1 as gp + mfusr $r15, $PC + sethi $r1, hi20(_GLOBAL_OFFSET_TABLE_+4) + ori $r1, $r1, lo12(_GLOBAL_OFFSET_TABLE_+8) + add $r1, $r1, $r15 + #endif + + ! r15=C_SYMBOL_NAME(__syscall_error)@PLT + sethi $r15, hi20(C_SYMBOL_NAME(__syscall_error)@PLT) + ori $r15, $r15, lo12(C_SYMBOL_NAME(__syscall_error)@PLT) + add $r15, $r15, $r1 + + ! jump to SYSCALL_ERROR + jr $r15 +# else + j C_SYMBOL_NAME(__syscall_error) +# endif + +#else +# error "__NR_vfork not available" +#endif + +PSEUDO_END (__vfork) +weak_alias (__vfork, vfork) +libc_hidden_def(vfork) |