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Remove __ASSUME_POSIX_CPU_TIMERS.

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This commit is contained in:
Joseph Myers
2012-09-01 21:32:04 +00:00
parent 033d54a2d4
commit 26889eacc2
8 changed files with 55 additions and 324 deletions
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94
sysdeps/unix/sysv/linux/clock_gettime.c
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@ -49,99 +49,13 @@
retval = SYSCALL_GETTIME (clock_id, tp); \
break
#ifdef __NR_clock_gettime
/* 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_GETTIME_CPU(clock_id, tp) \
#define SYSDEP_GETTIME_CPU(clock_id, tp) \
retval = SYSCALL_GETTIME (clock_id, tp); \
break
# define SYSDEP_GETTIME_CPUTIME /* Default catches them too. */
# else
int __libc_missing_posix_cpu_timers attribute_hidden;
static int
maybe_syscall_gettime_cpu (clockid_t clock_id, struct timespec *tp)
{
int e = EINVAL;
if (!__libc_missing_posix_cpu_timers)
{
INTERNAL_SYSCALL_DECL (err);
int r = INTERNAL_GETTIME (clock_id, tp);
if (!INTERNAL_SYSCALL_ERROR_P (r, err))
return 0;
e = INTERNAL_SYSCALL_ERRNO (r, err);
if (e == EINVAL)
{
# ifdef HAVE_CLOCK_GETRES_VSYSCALL
/* 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);
# else
/* Check whether the kernel supports CPU clocks at all.
If not, record it for the future. */
r = INTERNAL_SYSCALL (clock_getres, err, 2,
MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
NULL);
# endif
if (INTERNAL_SYSCALL_ERROR_P (r, err))
__libc_missing_posix_cpu_timers = 1;
}
}
return e;
}
# define SYSDEP_GETTIME_CPU(clock_id, tp) \
retval = maybe_syscall_gettime_cpu (clock_id, tp); \
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_gettime_cputime (clockid_t clock_id, struct timespec *tp)
{
return maybe_syscall_gettime_cpu
(clock_id == CLOCK_THREAD_CPUTIME_ID
? MAKE_THREAD_CPUCLOCK (0, CPUCLOCK_SCHED)
: MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
tp);
}
# define SYSDEP_GETTIME_CPUTIME \
case CLOCK_PROCESS_CPUTIME_ID: \
case CLOCK_THREAD_CPUTIME_ID: \
retval = maybe_syscall_gettime_cputime (clock_id, tp); \
if (retval == 0) \
break; \
if (retval != EINVAL || !__libc_missing_posix_cpu_timers) \
{ \
__set_errno (retval); \
retval = -1; \
break; \
} \
retval = hp_timing_gettime (clock_id, tp); \
break
# if !HP_TIMING_AVAIL
# define hp_timing_gettime(clock_id, tp) (__set_errno (EINVAL), -1)
# endif
# endif
#endif
#define SYSDEP_GETTIME_CPUTIME /* Default catches them too. */
#include <sysdeps/unix/clock_gettime.c>