(pthread_barrier_wait): Don't save, load, and restore %esi for last thread.

[kopensolaris-gnu/glibc.git] / nptl / sysdeps / unix / sysv / linux / pthread_kill.c

diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
index ca6dfd8..a35a3f0 100644 (file)
--- a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
@@ -31,14 +31,18 @@ __pthread_kill (threadid, signo)
 {
   struct pthread *pd = (struct pthread *) threadid;
 
+  /* Make sure the descriptor is valid.  */
+  if (INVALID_TD_P (pd))
+    /* Not a valid thread handle.  */
+    return ESRCH;
+
+  /* Disallow sending the signal we use for cancellation.  */
+  if (signo == SIGCANCEL)
+    return EINVAL;
+
   /* We have a special syscall to do the work.  */
   INTERNAL_SYSCALL_DECL (err);
 
-  /* The kernel returns EINVAL for PIDs <= 0.  This is not nice since
-     the user would expect ESRCH.  Correct it here.  */
-  if (pd->tid <= 0)
-    return ESRCH;
-
   int val = INTERNAL_SYSCALL (tkill, err, 2, pd->tid, signo);
 
   return (INTERNAL_SYSCALL_ERROR_P (val, err)