1/* { dg-shouldfail "tsan" } */
2/* { dg-additional-options "-ldl" } */
3
4#include <pthread.h>
5#include "tsan_barrier.h"
6
7static pthread_barrier_t barrier;
8int Global;
9pthread_mutex_t mtx;
10
11void *Thread1(void *x) {
12  barrier_wait(&barrier);
13  pthread_mutex_lock(&mtx);
14  Global++;
15  pthread_mutex_unlock(&mtx);
16  return NULL;
17}
18
19void *Thread2(void *x) {
20  Global--;
21  barrier_wait(&barrier);
22  return NULL;/* { dg-output ".*" } */
23
24}
25
26int main() {
27  barrier_init(&barrier, 2);
28  pthread_mutex_init(&mtx, 0);
29  pthread_t t[2];
30  pthread_create(&t[0], NULL, Thread1, NULL);
31  pthread_create(&t[1], NULL, Thread2, NULL);
32  pthread_join(t[0], NULL);
33  pthread_join(t[1], NULL);
34  pthread_mutex_destroy(&mtx);
35  return 0;
36}
37
38/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
39/* { dg-output "  Read of size 4 at 0x\[0-9a-f\]+ by thread T1 \\(mutexes: write M\[0-9\]\\):.*" } */
40/* { dg-output "  Previous write of size 4 at 0x\[0-9a-f\]+ by thread T2:.*" } */
41/* { dg-output "  Mutex M\[0-9\] \\(0x.*\\) created at:.*" } */
42/* { dg-output "    #0 pthread_mutex_init.*" } */
43/* { dg-output "    #1 main (.*mutexset1.c|\\?{2}):\[0-9]+.*" } */
44