mirror of
https://github.com/fluencelabs/musl
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24 lines
692 B
C
24 lines
692 B
C
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#include <signal.h>
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#include "syscall.h"
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#include "libc.h"
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int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old)
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{
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return syscall4(__NR_rt_sigprocmask, how, (long)set, (long)old, 8);
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}
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int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
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{
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sigset_t tmp;
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/* Quickly mask out bits 32 and 33 (thread control signals) */
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if (0 && how != SIG_UNBLOCK && (set->__bits[4/sizeof *set->__bits] & 3UL<<(32&8*sizeof *set->__bits-1))) {
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tmp = *set;
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set = &tmp;
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tmp.__bits[4/sizeof *set->__bits] &= ~(3UL<<(32&8*sizeof *set->__bits-1));
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}
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return __libc_sigprocmask(how, set, old);
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}
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weak_alias(__sigprocmask, sigprocmask);
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weak_alias(__sigprocmask, pthread_sigmask);
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