1 // RUN: %clangxx_tsan -O1 -DTEST_ERROR=ERANGE %s -o %t && %run %t 2>&1 | FileCheck --check-prefixes=CHECK,CHECK-SYS %s
2 // RUN: %clangxx_tsan -O1 -DTEST_ERROR=-1 %s -o %t && not %run %t 2>&1 | FileCheck --check-prefixes=CHECK,CHECK-USER %s
3 // This test is for GNU specific version of strerror_r()
4 // UNSUPPORTED: darwin, netbsd, freebsd
5 
6 #include "test.h"
7 
8 #include <errno.h>
9 #include <pthread.h>
10 #include <string.h>
11 
12 char buffer[1000];
13 
14 void *Thread(void *p) {
15   barrier_wait(&barrier);
16   return strerror_r(TEST_ERROR, buffer, sizeof(buffer));
17 }
18 
19 int main() {
20   barrier_init(&barrier, 2);
21   pthread_t th;
22   pthread_create(&th, 0, Thread, 0);
23   strerror_r(TEST_ERROR, buffer, sizeof(buffer));
24   barrier_wait(&barrier);
25   pthread_join(th, 0);
26   fprintf(stderr, "DONE\n");
27 }
28 
29 // CHECK-USER: WARNING: ThreadSanitizer: data race
30 // CHECK-SYS-NOT: WARNING: ThreadSanitizer: data race
31 
32 // CHECK: DONE
33