1 files changed, 7 insertions, 4 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex2.c b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex2.c
index 80a6fb6c0..57d7e21e7 100644
--- a/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex2.c
+++ b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex2.c
@@ -1,22 +1,25 @@
 /* { dg-shouldfail "tsan" } */
+/* { dg-additional-options "-ldl" } */
 
 #include <pthread.h>
-#include <stdio.h>
-#include <stddef.h>
-#include <unistd.h>
+#include "tsan_barrier.h"
+
+static pthread_barrier_t barrier;
 
 void *Thread(void *x) {
   pthread_mutex_lock((pthread_mutex_t*)x);
   pthread_mutex_unlock((pthread_mutex_t*)x);
+  barrier_wait(&barrier);
   return 0;
 }
 
 int main() {
+  barrier_init(&barrier, 2);
   pthread_mutex_t Mtx;
   pthread_mutex_init(&Mtx, 0);
   pthread_t t;
   pthread_create(&t, 0, Thread, &Mtx);
-  sleep(1);
+  barrier_wait(&barrier);
   pthread_mutex_destroy(&Mtx);
   pthread_join(t, 0);
   return 0;