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don't use pthread_once when there is no danger in race
[musl]
/
src
/
signal
/
sigprocmask.c
diff --git
a/src/signal/sigprocmask.c
b/src/signal/sigprocmask.c
index
db27f12
..
a272c10
100644
(file)
--- a/
src/signal/sigprocmask.c
+++ b/
src/signal/sigprocmask.c
@@
-1,25
+1,30
@@
#include <signal.h>
#include <signal.h>
+#include <errno.h>
#include "syscall.h"
#include "libc.h"
#include "pthread_impl.h"
int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old)
{
#include "syscall.h"
#include "libc.h"
#include "pthread_impl.h"
int __libc_sigprocmask(int how, const sigset_t *set, sigset_t *old)
{
- return syscall
4(__NR_rt_sigprocmask, how, (long)set, (long)
old, 8);
+ return syscall
(SYS_rt_sigprocmask, how, set,
old, 8);
}
int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
{
sigset_t tmp;
}
int __sigprocmask(int how, const sigset_t *set, sigset_t *old)
{
sigset_t tmp;
+ if (how > 2U) {
+ errno = EINVAL;
+ return -1;
+ }
/* Disallow blocking thread control signals */
/* Disallow blocking thread control signals */
- if (how != SIG_UNBLOCK) {
+ if (
set &&
how != SIG_UNBLOCK) {
tmp = *set;
set = &tmp;
sigdelset(&tmp, SIGCANCEL);
sigdelset(&tmp, SIGSYSCALL);
tmp = *set;
set = &tmp;
sigdelset(&tmp, SIGCANCEL);
sigdelset(&tmp, SIGSYSCALL);
+ sigdelset(&tmp, SIGTIMER);
}
return __libc_sigprocmask(how, set, old);
}
weak_alias(__sigprocmask, sigprocmask);
}
return __libc_sigprocmask(how, set, old);
}
weak_alias(__sigprocmask, sigprocmask);
-weak_alias(__sigprocmask, pthread_sigmask);