H.J. Lu 8f763b04a0 Use INTERNAL_SYSCALL and INLINE_SYSCALL_ERROR_RETURN_VALUE
This patch uses INTERNAL_SYSCALL and INLINE_SYSCALL_ERROR_RETURN_VALUE
to avoid reading and writing errno directly so that we don't need to
call __x86.get_pc_thunk.reg to load PC into reg in case there is an
error.

	* sysdeps/unix/sysv/linux/i386/brk.c (__brk): Use
	INLINE_SYSCALL_ERROR_RETURN_VALUE.
	* sysdeps/unix/sysv/linux/i386/fxstatat.c (__fxstatat):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise.
	* sysdeps/unix/sysv/linux/i386/seteuid.c (seteuid): Likewise.
	* sysdeps/unix/sysv/linux/i386/fxstat.c (__fxstat): Use
	INTERNAL_SYSCALLINTERNAL_SYSCALL and
	INLINE_SYSCALL_ERROR_RETURN_VALUE.
	* sysdeps/unix/sysv/linux/i386/lockf64.c (lockf64): Likewise.
	* sysdeps/unix/sysv/linux/i386/lxstat.c (__lxstat): Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c (__libc_sigaction):
	Likewise.
	* sysdeps/unix/sysv/linux/i386/xstat.c (__xstat): Likewise.
2015-10-14 03:45:46 -07:00

56 lines
1.8 KiB
C

/* Copyright (C) 2005-2015 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/>. */
/* Ho hum, if fxstatat == fxstatat64 we must get rid of the prototype or gcc
will complain since they don't strictly match. */
#define __fxstatat64 __fxstatat64_disable
#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <kernel_stat.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <xstatconv.h>
/* Get information about the file NAME relative to FD in ST. */
int
__fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
{
int result;
INTERNAL_SYSCALL_DECL (err);
struct stat64 st64;
result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, &st64, flag);
if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err)))
return INLINE_SYSCALL_ERROR_RETURN_VALUE (-result);
else
return __xstat32_conv (vers, &st64, st);
}
libc_hidden_def (__fxstatat)
#ifdef XSTAT_IS_XSTAT64
# undef __fxstatat64
strong_alias (__fxstatat, __fxstatat64);
libc_hidden_ver (__fxstatat, __fxstatat64)
#endif