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authorDavid S. Miller <davem@davemloft.net>2011-09-05 10:01:52 -0700
committerDavid S. Miller <davem@davemloft.net>2011-09-05 10:01:52 -0700
commit39c4451cecac1bc3c3bccf53521333cef18d37c6 (patch)
treec2785b3b70516e8e0f0aab0f9d38398d4a84a710 /nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c
parent3b142ce5728f6d683f3375fb33099ebf243f6681 (diff)
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Fix nptl semaphore cleanup invocation.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c
index 01952f3f9a..fdd09affea 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c
@@ -30,6 +30,21 @@
 
 extern void __sem_wait_cleanup (void *arg) attribute_hidden;
 
+/* This is in a seperate function in order to make sure gcc
+   puts the call site into an exception region, and thus the
+   cleanups get properly run.  */
+static int
+__attribute__ ((noinline))
+do_futex_timed_wait (struct sparc_new_sem *isem, struct timespec *rt)
+{
+  int err, oldtype = __pthread_enable_asynccancel ();
+
+  err = lll_futex_timed_wait (&isem->value, 0, rt,
+			      isem->private ^ FUTEX_PRIVATE_FLAG);
+
+  __pthread_disable_asynccancel (oldtype);
+  return err;
+}
 
 int
 sem_timedwait (sem_t *sem, const struct timespec *abstime)
@@ -80,16 +95,7 @@ sem_timedwait (sem_t *sem, const struct timespec *abstime)
       /* Do wait.  */
       rt.tv_sec = sec;
       rt.tv_nsec = nsec;
-
-      /* Enable asynchronous cancellation.  Required by the standard.  */
-      int oldtype = __pthread_enable_asynccancel ();
-
-      err = lll_futex_timed_wait (&isem->value, 0, &rt,
-				  isem->private ^ FUTEX_PRIVATE_FLAG);
-
-      /* Disable asynchronous cancellation.  */
-      __pthread_disable_asynccancel (oldtype);
-
+      err = do_futex_timed_wait(isem, &rt);
       if (err != 0 && err != -EWOULDBLOCK)
 	{
 	  __set_errno (-err);