1 files changed, 7 insertions, 2 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/tsan/atomic_free.C b/gcc-4.9/gcc/testsuite/g++.dg/tsan/atomic_free.C
index 26d01ae3f..20429f159 100644
--- a/gcc-4.9/gcc/testsuite/g++.dg/tsan/atomic_free.C
+++ b/gcc-4.9/gcc/testsuite/g++.dg/tsan/atomic_free.C
@@ -1,18 +1,23 @@
 /* { dg-shouldfail "tsan" } */
+/* { dg-additional-options "-ldl" } */
 
 #include <pthread.h>
-#include <unistd.h>
+#include "tsan_barrier.h"
+
+static pthread_barrier_t barrier;
 
 void *Thread(void *a) {
   __atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
+  barrier_wait(&barrier);
   return 0;
 }
 
 int main() {
+  barrier_init(&barrier, 2);
   int *a = new int(0);
   pthread_t t;
   pthread_create(&t, 0, Thread, a);
-  sleep(1);
+  barrier_wait(&barrier);
   delete a;
   pthread_join(t, 0);
 }