X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2Fpthread_kill.c;h=3d9395cb7e0a0b5797c962e4af2d22d95de93718;hb=c0058ab465e950c2c3302d2b62e21cc0b494224b;hp=9d85fa5b497fb06afcabf9d1258cc8e446b3dabd;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/thread/pthread_kill.c b/src/thread/pthread_kill.c
index 9d85fa5b..3d9395cb 100644
--- a/src/thread/pthread_kill.c
+++ b/src/thread/pthread_kill.c
@@ -1,7 +1,12 @@
-#define SYSCALL_RETURN_ERRNO
 #include "pthread_impl.h"
+#include "lock.h"
 
 int pthread_kill(pthread_t t, int sig)
 {
-	return syscall3(__NR_tgkill, t->pid, t->tid, sig);
+	int r;
+	LOCK(t->killlock);
+	r = t->tid ? -__syscall(SYS_tkill, t->tid, sig)
+		: (sig+0U >= _NSIG ? EINVAL : 0);
+	UNLOCK(t->killlock);
+	return r;
 }