Update.

2003-03-02  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
	_POSIX_MONOTONIC_CLOCK.
	* linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.

1 files changed, 51 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c
new file mode 100644
index 0000000000..92b1e66782
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sysconf.c
@@ -0,0 +1,51 @@
+/* Get file-specific information about a file.  Linux version.
+   Copyright (C) 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 <sysdep.h>
+#include <time.h>
+#include <unistd.h>
+
+static long int posix_sysconf (int name);
+
+/* Define this first, so it can be inlined.  */
+#define __sysconf static posix_sysconf
+#include <sysdeps/posix/sysconf.c>
+
+
+/* Get the value of the system variable NAME.  */
+long int
+__sysconf (int name)
+{
+  switch (name)
+    {
+#ifdef __NR_clock_getres
+    case _SC_MONOTONIC_CLOCK:
+      /* Check using the clock_getres system call.  */
+      {
+	struct timespec ts;
+	INTERNAL_SYSCALL_DECL (err);
+	int r = INTERNAL_SYSCALL (clock_getres, err, 2, CLOCK_MONOTONIC, &ts);
+	return INTERNAL_SYSCALL_ERROR_P (r, err) ? 0 : 1;
+      }
+#endif
+
+    default:
+      return posix_sysconf (name);
+    }
+}