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authorUlrich Drepper <drepper@redhat.com>2004-10-04 19:28:07 +0000
committerUlrich Drepper <drepper@redhat.com>2004-10-04 19:28:07 +0000
commit94d824f920209243c72eb4a6fedbb5a039be2af3 (patch)
treebbd2b74f817b833d5b7e4c776927329bec5d353e /sysdeps/unix/sysv/linux/ia64
parent3078cba2f7272dab753c45b733af2e693e86d83c (diff)
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Update.
* sysdeps/unix/sysv/linux/ia64/sysconf.c: New file. * sysdeps/unix/sysv/linux/ia64/Dist: Add has_cpuclock.c. * sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c: Move actual testing code to... * sysdeps/unix/sysv/linux/ia64/has_cpuclock.c: ...here. New file. * sysdeps/unix/sysv/linux/i386/sysconf.c: Add dynamic check for _SC_CPUTIME and _SC_THREAD_CPUTIME.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64')
-rw-r--r--sysdeps/unix/sysv/linux/ia64/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c30
-rw-r--r--sysdeps/unix/sysv/linux/ia64/has_cpuclock.c52
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sysconf.c45
4 files changed, 103 insertions, 25 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/Dist b/sysdeps/unix/sysv/linux/ia64/Dist
index c9e81a3e8f..b4118bdead 100644
--- a/sysdeps/unix/sysv/linux/ia64/Dist
+++ b/sysdeps/unix/sysv/linux/ia64/Dist
@@ -2,6 +2,7 @@ clone.S
clone2.S
dl-brk.S
dl-static.c
+has_cpuclock.c
ioperm.c
ldd-rewrite.sed
__start_context.S
diff --git a/sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c b/sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c
index 68e5763a8c..229f93d67d 100644
--- a/sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c
+++ b/sysdeps/unix/sysv/linux/ia64/clock_getcpuclockid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2003, 2004 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
@@ -24,6 +24,9 @@
#include <fcntl.h>
+#include "has_cpuclock.c"
+
+
int
clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
{
@@ -31,30 +34,7 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
if (pid != 0 && pid != getpid ())
return EPERM;
- static int itc_usable;
- int retval = ENOENT;
-
- if (__builtin_expect (itc_usable == 0, 0))
- {
- int newval = 1;
- int fd = open ("/proc/sal/itc_drift", O_RDONLY);
- if (__builtin_expect (fd != -1, 1))
- {
- char buf[16];
- /* We expect the file to contain a single digit followed by
- a newline. If the format changes we better not rely on
- the file content. */
- if (read (fd, buf, sizeof buf) != 2 || buf[0] != '0'
- || buf[1] != '\n')
- newval = -1;
-
- close (fd);
- }
-
- itc_usable = newval;
- }
-
- if (itc_usable > 0)
+ if (has_cpuclock () > 0)
{
/* Store the number. */
*clock_id = CLOCK_PROCESS_CPUTIME_ID;
diff --git a/sysdeps/unix/sysv/linux/ia64/has_cpuclock.c b/sysdeps/unix/sysv/linux/ia64/has_cpuclock.c
new file mode 100644
index 0000000000..ee19161272
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ia64/has_cpuclock.c
@@ -0,0 +1,52 @@
+/* Copyright (C) 2000, 2001, 2003, 2004 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 <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+
+static int itc_usable;
+
+static int
+has_cpuclock (void)
+{
+ if (__builtin_expect (itc_usable == 0, 0))
+ {
+ int newval = 1;
+ int fd = open ("/proc/sal/itc_drift", O_RDONLY);
+ if (__builtin_expect (fd != -1, 1))
+ {
+ char buf[16];
+ /* We expect the file to contain a single digit followed by
+ a newline. If the format changes we better not rely on
+ the file content. */
+ if (read (fd, buf, sizeof buf) != 2 || buf[0] != '0'
+ || buf[1] != '\n')
+ newval = -1;
+
+ close (fd);
+ }
+
+ itc_usable = newval;
+ }
+
+ return itc_usable;
+}
diff --git a/sysdeps/unix/sysv/linux/ia64/sysconf.c b/sysdeps/unix/sysv/linux/ia64/sysconf.c
new file mode 100644
index 0000000000..ea4bde2e43
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ia64/sysconf.c
@@ -0,0 +1,45 @@
+/* Get file-specific information about a file. Linux version.
+ Copyright (C) 2003, 2004 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 <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+#include "has_cpuclock.c"
+
+static long int linux_sysconf (int name);
+
+
+/* Get the value of the system variable NAME. */
+long int
+__sysconf (int name)
+{
+ if (name == _SC_CPUTIME || name == SC_THREAD_CPUTIME)
+ return has_cpuclock () ? 200112L : -1;
+
+ /* Everything else is handled by the more general code. */
+ return linux_sysconf (name);
+}
+
+/* Now the generic Linux version. */
+#undef __sysconf
+#define __sysconf static linux_sysconf
+#include "../sysconf.c"