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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 /sysdeps/unix/sysv/linux/clock_getcpuclockid.c
parent033d54a2d43a92cdb1794a4dfece4d465cf36f6b (diff)
Remove __ASSUME_POSIX_CPU_TIMERS.
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_getcpuclockid.c')
-rw-r--r--sysdeps/unix/sysv/linux/clock_getcpuclockid.c56
1 files changed, 10 insertions, 46 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
index 1cfdf3489b..8700354a92 100644
--- a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
+++ b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
@@ -29,60 +29,24 @@
int
clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
{
-#ifdef __NR_clock_getres
/* The clockid_t value is a simple computation from the PID.
But we do a clock_getres call to validate it. */
const clockid_t pidclock = MAKE_PROCESS_CPUCLOCK (pid, CPUCLOCK_SCHED);
-# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
- extern int __libc_missing_posix_cpu_timers attribute_hidden;
- if (!__libc_missing_posix_cpu_timers)
-# endif
+ INTERNAL_SYSCALL_DECL (err);
+ int r = INTERNAL_SYSCALL (clock_getres, err, 2, pidclock, NULL);
+ if (!INTERNAL_SYSCALL_ERROR_P (r, err))
{
- INTERNAL_SYSCALL_DECL (err);
- int r = INTERNAL_SYSCALL (clock_getres, err, 2, pidclock, NULL);
- if (!INTERNAL_SYSCALL_ERROR_P (r, err))
- {
- *clock_id = pidclock;
- return 0;
- }
-
- if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
- {
-# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
- if (pidclock == MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED)
- || INTERNAL_SYSCALL_ERROR_P (INTERNAL_SYSCALL
- (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK
- (0, CPUCLOCK_SCHED), NULL),
- err))
- /* The kernel doesn't support these clocks at all. */
- __libc_missing_posix_cpu_timers = 1;
- else
-# endif
- /* The clock_getres system call checked the PID for us. */
- return ESRCH;
- }
- else
- return INTERNAL_SYSCALL_ERRNO (r, err);
+ *clock_id = pidclock;
+ return 0;
}
-#endif
-
- /* We don't allow any process ID but our own. */
- if (pid != 0 && pid != getpid ())
- return EPERM;
-#ifdef CLOCK_PROCESS_CPUTIME_ID
- if (HAS_CPUCLOCK)
+ if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
{
- /* Store the number. */
- *clock_id = CLOCK_PROCESS_CPUTIME_ID;
-
- return 0;
+ /* The clock_getres system call checked the PID for us. */
+ return ESRCH;
}
-#endif
-
- /* We don't have a timer for that. */
- return ENOENT;
+ else
+ return INTERNAL_SYSCALL_ERRNO (r, err);
}