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authorUlrich Drepper <drepper@redhat.com>2003-07-12 08:23:50 +0000
committerUlrich Drepper <drepper@redhat.com>2003-07-12 08:23:50 +0000
commit82bae9f921065377c6fbf08edf4929b1db92a0d5 (patch)
tree0e3f34d919c9c78bffc65df052f0f487356985ba
parent4a17085f1589c5451d031995534e00e763364fb0 (diff)
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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.
-rw-r--r--ChangeLog6
-rw-r--r--sysdeps/unix/sysv/linux/futimes.c60
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h6
3 files changed, 72 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 6798453c7e..c0a2a151a8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -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
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