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2003-07-12  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/kernel-features.h: Define
	__ASSUME_UTIMES for the architectures which always had the syscall.
	* sysdeps/unix/sysv/linux/futimes.c: New file.
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Ulrich Drepper 2003-07-12 08:23:50 +00:00
parent 4a17085f15
commit 82bae9f921
3 changed files with 72 additions and 0 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2003-07-12 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/kernel-features.h: Define
__ASSUME_UTIMES for the architectures which always had the syscall.
* sysdeps/unix/sysv/linux/futimes.c: New file.
2003-07-12 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/socket.S: Save and restore the PR

60
sysdeps/unix/sysv/linux/futimes.c Normal file
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/* futimes -- change access and modification times of open file. Stub version.
Copyright (C) 2002, 2003 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. */
#include <errno.h>
#include <sysdep.h>
#include <utime.h>
#include <sys/time.h>
#include <stdio-common/_itoa.h>
/* Change the access time of FILE to TVP[0] and
the modification time of FILE to TVP[1], but do not follow symlinks.
The Linux kernel has no futimes() syscall so we use the /proc
filesystem. */
int
__futimes (int fd, const struct timeval tvp[2])
{
static const char selffd[] = "/proc/self/fd/";
char buf[sizeof (selffd) + 3 * sizeof (int)];
buf[sizeof (buf) - 1] = '\0';
char *cp = _itoa_word (fd, buf + sizeof (buf) - 1, 10, 0);
cp = memcpy (cp - sizeof (selffd) + 1, selffd, sizeof (selffd) - 1);
#ifdef __NR_utimes
int result = INLINE_SYSCALL (utimes, 2, cp, tvp);
# ifndef __ASSUME_UTIMES
if (result != -1 || errno != ENOSYS)
# endif
return result;
#endif
/* The utimes() syscall does not exist or is not available in the
used kernel. Use utime(). For this we have to convert to the
data format utime() expects. */
#ifndef __ASSUME_UTIMES
struct utimbuf ut =
{
.actime = tvp[0].tv_sec + tvp[0].tv_usec >= 500000,
.modtime = tvp[1].tv_sec + tvp[1].tv_usec >= 500000
};
return INLINE_SYSCALL (utime, 2, cp, &ut);
#endif
}
weak_alias (__futimes, futimes)

6
sysdeps/unix/sysv/linux/kernel-features.h
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@ -345,3 +345,9 @@
#if __LINUX_KERNEL_VERSION >= 132427 && defined __i386__
# define __ASSUME_TGKILL 1
#endif
/* The utimes syscall has been available for some architectures forever. */
#if defined __alpha__ || defined __ia64__ || defined __hppa_ \
|| defined __sparc__
# define __ASSUME_UTIMES 1
#endif