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5287b1d872
* sysdeps/unix/sysv/linux/fxstat64.c: Add one __builtin_expect. * sysdeps/unix/sysv/linux/lxstat64.c: Likewise. * sysdeps/unix/sysv/linux/xstat64.c: Likewise.
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
/* xstat64 using old-style Unix stat system call.
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Copyright (C) 1991,95,96,97,98,99,2000,2001 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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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 <bp-checks.h>
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#include "kernel-features.h"
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#if __ASSUME_STAT64_SYSCALL == 0
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# include <xstatconv.c>
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#endif
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extern int __syscall_stat (const char *__unbounded,
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struct kernel_stat *__unbounded);
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#ifdef __NR_stat64
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extern int __syscall_stat64 (const char *__unbounded,
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struct stat64 *__unbounded);
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# if __ASSUME_STAT64_SYSCALL == 0
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/* The variable is shared between all wrappers around *stat64 calls.
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This is the definition. */
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int __have_no_stat64;
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# endif
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#endif
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/* Get information about the file NAME in BUF. */
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int
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___xstat64 (int vers, const char *name, struct stat64 *buf);
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int
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___xstat64 (int vers, const char *name, struct stat64 *buf)
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{
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int result;
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#if __ASSUME_STAT64_SYSCALL > 0
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result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), CHECK_1 (buf));
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# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
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if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
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buf->st_ino = buf->__st_ino;
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# endif
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return result;
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#else
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struct kernel_stat kbuf;
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# if defined __NR_stat64
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if (! __have_no_stat64)
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{
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int saved_errno = errno;
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result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), CHECK_1 (buf));
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if (result != -1 || errno != ENOSYS)
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{
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# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
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if (!result && buf->__st_ino != (__ino_t) buf->st_ino)
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buf->st_ino = buf->__st_ino;
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# endif
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return result;
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}
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__set_errno (saved_errno);
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__have_no_stat64 = 1;
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}
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# endif
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result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
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if (result == 0)
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result = xstat64_conv (vers, &kbuf, buf);
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return result;
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#endif
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}
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#include <shlib-compat.h>
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versioned_symbol (libc, ___xstat64, __xstat64, GLIBC_2_2);
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#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
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strong_alias (___xstat64, __old__xstat64)
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compat_symbol (libc, __old__xstat64, __xstat64, GLIBC_2_1);
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#endif
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