make linking of thread-start with explicit scheduling conditional

[musl] / src / thread / pthread_kill.c

diff --git a/src/thread/pthread_kill.c b/src/thread/pthread_kill.c
index d9a5096..6d70e62 100644 (file)
--- a/src/thread/pthread_kill.c
+++ b/src/thread/pthread_kill.c
@@ -3,8 +3,9 @@
 int pthread_kill(pthread_t t, int sig)
 {
        int r;
-       __lock(t->killlock);
-       r = t->dead ? ESRCH : -__syscall(SYS_tgkill, t->pid, t->tid, sig);
-       __unlock(t->killlock);
+       LOCK(t->killlock);
+       r = t->tid ? -__syscall(SYS_tkill, t->tid, sig)
+               : (sig+0U >= _NSIG ? EINVAL : 0);
+       UNLOCK(t->killlock);
        return r;
 }