X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fsignal%2Fsigaction.c;h=7a72a44b13fec0ca83eae4f4241258e2da8c3876;hb=ea34b1b90ca5ba3b87725662f6a1ff03b7a88a1f;hp=2331dc93b6886a3abe9b141c16f350fa519aa974;hpb=400c5e5c8307a2ebe44ef1f203f5a15669f20347;p=musl

diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c
index 2331dc93..7a72a44b 100644
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c
@@ -1,6 +1,7 @@
 #include <stdlib.h>
 #include <signal.h>
 #include <errno.h>
+#include <string.h>
 #include "syscall.h"
 #include "pthread_impl.h"
 #include "libc.h"
@@ -15,12 +16,13 @@ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigact
 {
 	struct k_sigaction ksa;
 	if (sa) {
+		if ((uintptr_t)sa->sa_handler > 1UL)
+			__pthread_self_def();
 		ksa.handler = sa->sa_handler;
 		ksa.flags = sa->sa_flags | SA_RESTORER;
 		ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;
 		memcpy(&ksa.mask, &sa->sa_mask, sizeof ksa.mask);
 	}
-	__pthread_self_def();
 	if (syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa:0, sizeof ksa.mask))
 		return -1;
 	if (old) {