Update.

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.

2 files changed, 66 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/futimes.c b/sysdeps/unix/sysv/linux/futimes.c
new file mode 100644
index 0000000000..a10ebabf98
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/futimes.c
@@ -0,0 +1,60 @@
+/* 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)
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 4d19238c0a..cb1d04ad93 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -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