-#define SYSCALL_RETURN_ERRNO
#include "pthread_impl.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;
}