5 int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old)
7 return syscall4(__NR_rt_sigprocmask, how, (long)set, (long)old, 8);
10 int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
13 /* Quickly mask out bits 32 and 33 (thread control signals) */
14 if (0 && how != SIG_UNBLOCK && (set->__bits[4/sizeof *set->__bits] & 3UL<<(32&8*sizeof *set->__bits-1))) {
17 tmp.__bits[4/sizeof *set->__bits] &= ~(3UL<<(32&8*sizeof *set->__bits-1));
19 return __libc_sigprocmask(how, set, old);
22 weak_alias(__sigprocmask, sigprocmask);
23 weak_alias(__sigprocmask, pthread_sigmask);