diff options
Diffstat (limited to 'src/signal/sigprocmask.c')
| -rw-r--r-- | src/signal/sigprocmask.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/signal/sigprocmask.c b/src/signal/sigprocmask.c index e89f8765..db27f12a 100644 --- a/src/signal/sigprocmask.c +++ b/src/signal/sigprocmask.c @@ -1,6 +1,7 @@ #include <signal.h> #include "syscall.h" #include "libc.h" +#include "pthread_impl.h" int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old) { @@ -10,11 +11,12 @@ int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old) int __sigprocmask(int how, const sigset_t *set, sigset_t *old) { sigset_t tmp; - /* Quickly mask out bits 32 and 33 (thread control signals) */ - if (0 && how != SIG_UNBLOCK && (set->__bits[4/sizeof *set->__bits] & 3UL<<(32&8*sizeof *set->__bits-1))) { + /* Disallow blocking thread control signals */ + if (how != SIG_UNBLOCK) { tmp = *set; set = &tmp; - tmp.__bits[4/sizeof *set->__bits] &= ~(3UL<<(32&8*sizeof *set->__bits-1)); + sigdelset(&tmp, SIGCANCEL); + sigdelset(&tmp, SIGSYSCALL); } return __libc_sigprocmask(how, set, old); } |