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8f763b04a0
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.
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* xstat using old-style Unix stat system call.
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Copyright (C) 1991-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* Ho hum, if xstat == xstat64 we must get rid of the prototype or gcc
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will complain since they don't strictly match. */
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#define __xstat64 __xstat64_disable
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#include <errno.h>
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#include <stddef.h>
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#include <sys/stat.h>
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#include <kernel_stat.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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#include <xstatconv.h>
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/* Get information about the file NAME in BUF. */
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int
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__xstat (int vers, const char *name, struct stat *buf)
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{
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int result;
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if (vers == _STAT_VER_KERNEL)
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return INLINE_SYSCALL (stat, 2, name, (struct kernel_stat *) buf);
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{
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struct stat64 buf64;
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INTERNAL_SYSCALL_DECL (err);
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result = INTERNAL_SYSCALL (stat64, err, 2, name, &buf64);
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if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err)))
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return INLINE_SYSCALL_ERROR_RETURN_VALUE (-result);
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else
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return __xstat32_conv (vers, &buf64, buf);
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}
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}
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hidden_def (__xstat)
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weak_alias (__xstat, _xstat);
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#ifdef XSTAT_IS_XSTAT64
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# undef __xstat64
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strong_alias (__xstat, __xstat64);
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hidden_ver (__xstat, __xstat64)
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#endif
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