1/* { dg-set-target-env-var TSAN_OPTIONS "halt_on_error=1" } */
2/* { dg-shouldfail "tsan" } */
3/* { dg-additional-options "-ldl" } */
4
5#include <pthread.h>
6#include <unistd.h>
7#include "tsan_barrier.h"
8
9#define MAX_ITERATIONS_NUMBER 1
10#define SLEEP_STEP 128000
11
12static pthread_barrier_t barrier;
13unsigned int delay_time = 1000;
14
15static inline void delay () {
16  usleep(delay_time);
17}
18
19extern int main_1();
20
21int main() {
22  barrier_init(&barrier, 2);
23  int i;
24  for (i = 0; i < MAX_ITERATIONS_NUMBER; i++) {
25    main_1();
26    delay_time += delay_time < 256000 ? delay_time : SLEEP_STEP;
27  }
28  return 0;
29}
30
31int Global;
32
33void *Thread1(void *x) {
34  barrier_wait(&barrier);
35  delay();
36  Global = 42;
37  return NULL;
38}
39
40void *Thread2(void *x) {
41  Global = 43;
42  barrier_wait(&barrier);
43  return NULL;
44}
45
46int main_1() {
47  pthread_t t[2];
48  pthread_create(&t[0], NULL, Thread1, NULL);
49  pthread_create(&t[1], NULL, Thread2, NULL);
50  pthread_join(t[0], NULL);
51  pthread_join(t[1], NULL);
52  return 0;
53}
54
55/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */
56