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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c')
-rw-r--r--gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c
new file mode 100644
index 000000000..5dad345d8
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c
@@ -0,0 +1,43 @@
+/* { dg-shouldfail "tsan" } */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+
+pthread_mutex_t Mtx;
+int Global;
+
+void *Thread1(void *x) {
+ pthread_mutex_init(&Mtx, 0);
+ pthread_mutex_lock(&Mtx);
+ Global = 42;
+ pthread_mutex_unlock(&Mtx);
+ return NULL;
+}
+
+void *Thread2(void *x) {
+ sleep(1);
+ pthread_mutex_lock(&Mtx);
+ Global = 43;
+ pthread_mutex_unlock(&Mtx);
+ return NULL;
+}
+
+int main() {
+ pthread_t t[2];
+ pthread_create(&t[0], NULL, Thread1, NULL);
+ pthread_create(&t[1], NULL, Thread2, NULL);
+ pthread_join(t[0], NULL);
+ pthread_join(t[1], NULL);
+ pthread_mutex_destroy(&Mtx);
+ return 0;
+}
+
+/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
+/* { dg-output " Atomic read of size 1 at .* by thread T2:(\n|\r\n|\r)" } */
+/* { dg-output " #0 pthread_mutex_lock.*" } */
+/* { dg-output " #1 Thread2.* .*(race_on_mutex.c:21|\\?{2}:0) (.*)" } */
+/* { dg-output " Previous write of size 1 at .* by thread T1:(\n|\r\n|\r)" } */
+/* { dg-output " #0 pthread_mutex_init .* (.)*" } */
+/* { dg-output " #1 Thread1.* .*(race_on_mutex.c:12|\\?{2}:0) .*" } */