1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2 #include <pthread.h>
3 #include <stdlib.h>
4 #include <stdio.h>
5 #include <unistd.h>
6 #include <errno.h>
7 
8 pthread_mutex_t m;
9 
thr(void * p)10 void *thr(void *p) {
11   pthread_mutex_lock(&m);
12   return 0;
13 }
14 
main()15 int main() {
16   pthread_mutexattr_t a;
17   pthread_mutexattr_init(&a);
18   pthread_mutexattr_setrobust(&a, PTHREAD_MUTEX_ROBUST);
19   pthread_mutex_init(&m, &a);
20   pthread_t th;
21   pthread_create(&th, 0, thr, 0);
22   sleep(1);
23   if (pthread_mutex_lock(&m) != EOWNERDEAD) {
24     fprintf(stderr, "not EOWNERDEAD\n");
25     exit(1);
26   }
27   pthread_join(th, 0);
28   fprintf(stderr, "DONE\n");
29 }
30 
31 // This is a correct code, and tsan must not bark.
32 // CHECK-NOT: WARNING: ThreadSanitizer
33 // CHECK-NOT: EOWNERDEAD
34 // CHECK: DONE
35 // CHECK-NOT: WARNING: ThreadSanitizer
36 
37