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authorJoseph Myers <joseph@codesourcery.com>2012-09-01 21:32:04 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-09-01 21:32:04 +0000
commit26889eacc24cd9f0cb37c5a67beac1a0ba709adf (patch)
tree04fbc7fb5e7200f1075a0f57bf073713a937b518 /nptl
parent033d54a2d43a92cdb1794a4dfece4d465cf36f6b (diff)
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Remove __ASSUME_POSIX_CPU_TIMERS.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog8
-rw-r--r--nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c53
2 files changed, 10 insertions, 51 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index f59c3d7..f4b7ff3 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,11 @@
+2012-09-01 Joseph Myers <joseph@codesourcery.com>
+
+ * sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
+ [!__ASSUME_POSIX_CPU_TIMERS]: Remove conditional code.
+ [__NR_clock_getres]: Make code unconditional.
+ (pthread_getcpuclockid): Remove code left unreachable by removal
+ of conditionals.
+
2012-08-31 Joseph Myers <joseph@codesourcery.com>
[BZ #14532]
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c b/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
index 7d7287b..368f2c4 100644
--- a/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
@@ -24,10 +24,6 @@
#include <kernel-posix-cpu-timers.h>
-#if !(__ASSUME_POSIX_CPU_TIMERS > 0)
-int __libc_missing_posix_cpu_timers attribute_hidden;
-#endif
-
int
pthread_getcpuclockid (threadid, clockid)
pthread_t threadid;
@@ -40,55 +36,10 @@ pthread_getcpuclockid (threadid, clockid)
/* Not a valid thread handle. */
return ESRCH;
-#ifdef __NR_clock_getres
- /* The clockid_t value is a simple computation from the TID.
- But we do a clock_getres call to validate it if we aren't
- yet sure we have the kernel support. */
+ /* The clockid_t value is a simple computation from the TID. */
const clockid_t tidclock = MAKE_THREAD_CPUCLOCK (pd->tid, CPUCLOCK_SCHED);
-# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
- if (!__libc_missing_posix_cpu_timers)
- {
- INTERNAL_SYSCALL_DECL (err);
- int r = INTERNAL_SYSCALL (clock_getres, err, 2, tidclock, NULL);
- if (!INTERNAL_SYSCALL_ERROR_P (r, err))
-# endif
- {
- *clockid = tidclock;
- return 0;
- }
-
-# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
- if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
- {
- /* The kernel doesn't support these clocks at all. */
- __libc_missing_posix_cpu_timers = 1;
- }
- else
- return INTERNAL_SYSCALL_ERRNO (r, err);
- }
-# endif
-#endif
-
-#ifdef CLOCK_THREAD_CPUTIME_ID
- /* We need to store the thread ID in the CLOCKID variable together
- with a number identifying the clock. We reserve the low 3 bits
- for the clock ID and the rest for the thread ID. This is
- problematic if the thread ID is too large. But 29 bits should be
- fine.
-
- If some day more clock IDs are needed the ID part can be
- enlarged. The IDs are entirely internal. */
- if (pd->tid >= 1 << (8 * sizeof (*clockid) - CLOCK_IDFIELD_SIZE))
- return ERANGE;
-
- /* Store the number. */
- *clockid = CLOCK_THREAD_CPUTIME_ID | (pd->tid << CLOCK_IDFIELD_SIZE);
-
+ *clockid = tidclock;
return 0;
-#else
- /* We don't have a timer for that. */
- return ENOENT;
-#endif
}