diff options
Diffstat (limited to 'librt/clock_gettime.c')
| -rw-r--r-- | librt/clock_gettime.c | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/librt/clock_gettime.c b/librt/clock_gettime.c index e61616314..d87b7e463 100644 --- a/librt/clock_gettime.c +++ b/librt/clock_gettime.c @@ -187,58 +187,6 @@ maybe_syscall_gettime_cputime (clockid_t clock_id, struct timespec *tp) #include <sys/time.h> #include <ldsodefs.h> - -#if HP_TIMING_AVAIL -/* Clock frequency of the processor. We make it a 64-bit variable - because some jokers are already playing with processors with more - than 4GHz. */ -static hp_timing_t freq; - - -/* This function is defined in the thread library. */ -extern int __pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq, - struct timespec *tp) - __attribute__ ((__weak__)); - -static int -hp_timing_gettime (clockid_t clock_id, struct timespec *tp) -{ - hp_timing_t tsc; - - if (__builtin_expect (freq == 0, 0)) - { - /* This can only happen if we haven't initialized the `freq' - variable yet. Do this now. We don't have to protect this - code against multiple execution since all of them should - lead to the same result. */ - freq = __get_clockfreq (); - if (__builtin_expect (freq == 0, 0)) - /* Something went wrong. */ - return -1; - } - - if (clock_id != CLOCK_PROCESS_CPUTIME_ID - && __pthread_clock_gettime != NULL) - return __pthread_clock_gettime (clock_id, freq, tp); - - /* Get the current counter. */ - HP_TIMING_NOW (tsc); - - /* Compute the offset since the start time of the process. */ - tsc -= GL(dl_cpuclock_offset); - - /* Compute the seconds. */ - tp->tv_sec = tsc / freq; - - /* And the nanoseconds. This computation should be stable until - we get machines with about 16GHz frequency. */ - tp->tv_nsec = ((tsc % freq) * UINT64_C (1000000000)) / freq; - - return 0; -} -#endif - - static inline int realtime_gettime (struct timespec *tp) { @@ -278,20 +226,8 @@ clock_gettime (clockid_t clock_id, struct timespec *tp) #ifdef SYSDEP_GETTIME_CPU SYSDEP_GETTIME_CPU; #endif -#if HP_TIMING_AVAIL - if ((clock_id & ((1 << CLOCK_IDFIELD_SIZE) - 1)) - == CLOCK_THREAD_CPUTIME_ID) - retval = hp_timing_gettime (clock_id, tp); - else -#endif __set_errno (EINVAL); break; - -#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME - case CLOCK_PROCESS_CPUTIME_ID: - retval = hp_timing_gettime (clock_id, tp); - break; -#endif } return retval; |