diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_settime.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/clock_settime.c | 74 |
1 files changed, 10 insertions, 64 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_settime.c b/sysdeps/unix/sysv/linux/clock_settime.c index 8cf3209..f75ceca 100644 --- a/sysdeps/unix/sysv/linux/clock_settime.c +++ b/sysdeps/unix/sysv/linux/clock_settime.c @@ -32,7 +32,6 @@ #endif #if __ASSUME_POSIX_CPU_TIMERS <= 0 && defined __NR_clock_settime -extern int __libc_missing_posix_timers attribute_hidden; extern int __libc_missing_posix_cpu_timers attribute_hidden; static int @@ -48,26 +47,15 @@ maybe_syscall_settime_cpu (clockid_t clock_id, const struct timespec *tp) return 0; e = INTERNAL_SYSCALL_ERRNO (r, err); -# ifndef __ASSUME_POSIX_TIMERS - if (e == ENOSYS) + if (e == EINVAL) { - __libc_missing_posix_timers = 1; - __libc_missing_posix_cpu_timers = 1; - e = EINVAL; - } - else -# endif - { - 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; - } + /* 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; } } @@ -76,53 +64,11 @@ maybe_syscall_settime_cpu (clockid_t clock_id, const struct timespec *tp) #endif -#ifdef __ASSUME_POSIX_TIMERS -/* This means the REALTIME clock is definitely supported in the - kernel. */ -# define SYSDEP_SETTIME \ +/* The REALTIME clock is definitely supported in the kernel. */ +#define SYSDEP_SETTIME \ case CLOCK_REALTIME: \ retval = INLINE_SYSCALL (clock_settime, 2, clock_id, tp); \ break -#elif defined __NR_clock_settime -/* Is the syscall known to exist? */ -extern int __libc_missing_posix_timers attribute_hidden; - -/* The REALTIME clock might be available. Try the syscall first. */ -# define SYSDEP_SETTIME \ - case CLOCK_REALTIME: \ - case CLOCK_REALTIME_COARSE: \ - { \ - int e = EINVAL; \ - \ - if (!__libc_missing_posix_timers) \ - { \ - INTERNAL_SYSCALL_DECL (err); \ - int r = INTERNAL_SYSCALL (clock_settime, err, 2, clock_id, tp); \ - if (!INTERNAL_SYSCALL_ERROR_P (r, err)) \ - { \ - retval = 0; \ - break; \ - } \ - \ - e = INTERNAL_SYSCALL_ERRNO (r, err); \ - if (e == ENOSYS) \ - { \ - __libc_missing_posix_timers = 1; \ - e = EINVAL; \ - } \ - } \ - \ - /* Fallback code. */ \ - if (e == EINVAL && clock_id == CLOCK_REALTIME) \ - HANDLE_REALTIME; \ - else \ - { \ - __set_errno (e); \ - retval = -1; \ - } \ - } \ - break -#endif #ifdef __NR_clock_settime /* We handled the REALTIME clock here. */ |