1 // RUN: %clangxx_tsan %darwin_min_target_with_tls_support -O1 %s -o %t && \
2 // RUN: %deflake %run %t | \
3 // RUN: FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
4 #include "test.h"
5
Thread2(void * a)6 void *Thread2(void *a) {
7 barrier_wait(&barrier);
8 *(int*)a = 43;
9 return 0;
10 }
11
Thread(void * a)12 void *Thread(void *a) {
13 static __thread int Var = 42;
14 pthread_t t;
15 pthread_create(&t, 0, Thread2, &Var);
16 Var = 42;
17 barrier_wait(&barrier);
18 pthread_join(t, 0);
19 return 0;
20 }
21
main()22 int main() {
23 barrier_init(&barrier, 2);
24 pthread_t t;
25 pthread_create(&t, 0, Thread, 0);
26 pthread_join(t, 0);
27 fprintf(stderr, "DONE\n");
28 return 0;
29 }
30
31 // CHECK: WARNING: ThreadSanitizer: data race
32 // CHECK-Linux: Location is TLS of thread T1.
33 // CHECK-FreeBSD: Location is TLS of thread T1.
34 // CHECK-NetBSD: Location is TLS of thread T1.
35 // CHECK-Darwin: Location is heap block of size 4
36 // CHECK: DONE
37