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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_getres.c
parent033d54a2d43a92cdb1794a4dfece4d465cf36f6b (diff)
downloadglibc-26889eacc24cd9f0cb37c5a67beac1a0ba709adf.tar.gz
Remove __ASSUME_POSIX_CPU_TIMERS.
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_getres.c')
-rw-r--r--sysdeps/unix/sysv/linux/clock_getres.c86
1 files changed, 4 insertions, 82 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_getres.c b/sysdeps/unix/sysv/linux/clock_getres.c
index 2bada33b40..1e87dd9a8d 100644
--- a/sysdeps/unix/sysv/linux/clock_getres.c
+++ b/sysdeps/unix/sysv/linux/clock_getres.c
@@ -46,89 +46,11 @@
case CLOCK_MONOTONIC_COARSE: \
SYSCALL_GETRES
-#ifdef __NR_clock_getres
/* We handled the REALTIME clock here. */
-# define HANDLED_REALTIME 1
-# define HANDLED_CPUTIME 1
+#define HANDLED_REALTIME 1
+#define HANDLED_CPUTIME 1
-# if __ASSUME_POSIX_CPU_TIMERS > 0
-
-# define SYSDEP_GETRES_CPU SYSCALL_GETRES
-# define SYSDEP_GETRES_CPUTIME /* Default catches them too. */
-
-# else
-
-extern int __libc_missing_posix_cpu_timers attribute_hidden;
-
-static int
-maybe_syscall_getres_cpu (clockid_t clock_id, struct timespec *res)
-{
- int e = EINVAL;
-
- if (!__libc_missing_posix_cpu_timers)
- {
- INTERNAL_SYSCALL_DECL (err);
- int r = INTERNAL_VSYSCALL (clock_getres, err, 2, clock_id, res);
- if (!INTERNAL_SYSCALL_ERROR_P (r, err))
- return 0;
-
- e = INTERNAL_SYSCALL_ERRNO (r, err);
- if (e == EINVAL)
- {
- /* Check whether the kernel supports CPU clocks at all.
- If not, record it for the future. */
- r = INTERNAL_VSYSCALL (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
- NULL);
- if (INTERNAL_SYSCALL_ERROR_P (r, err))
- __libc_missing_posix_cpu_timers = 1;
- }
- }
-
- return e;
-}
-
-# define SYSDEP_GETRES_CPU \
- retval = maybe_syscall_getres_cpu (clock_id, res); \
- if (retval == 0) \
- break; \
- if (retval != EINVAL || !__libc_missing_posix_cpu_timers) \
- { \
- __set_errno (retval); \
- retval = -1; \
- break; \
- } \
- retval = -1 /* Otherwise continue on to the HP_TIMING version. */;
-
-static inline int
-maybe_syscall_getres_cputime (clockid_t clock_id, struct timespec *res)
-{
- return maybe_syscall_getres_cpu
- (clock_id == CLOCK_THREAD_CPUTIME_ID
- ? MAKE_THREAD_CPUCLOCK (0, CPUCLOCK_SCHED)
- : MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
- res);
-}
-
-# define SYSDEP_GETRES_CPUTIME \
- case CLOCK_PROCESS_CPUTIME_ID: \
- case CLOCK_THREAD_CPUTIME_ID: \
- retval = maybe_syscall_getres_cputime (clock_id, res); \
- if (retval == 0) \
- break; \
- if (retval != EINVAL || !__libc_missing_posix_cpu_timers) \
- { \
- __set_errno (retval); \
- retval = -1; \
- break; \
- } \
- retval = hp_timing_getres (res); \
- break;
-# if !HP_TIMING_AVAIL
-# define hp_timing_getres(res) (__set_errno (EINVAL), -1)
-# endif
-
-# endif
-#endif
+#define SYSDEP_GETRES_CPU SYSCALL_GETRES
+#define SYSDEP_GETRES_CPUTIME /* Default catches them too. */
#include <sysdeps/posix/clock_getres.c>