1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include <pthread.h>
#include <unistd.h>
extern "C" void AnnotateRWLockAcquired(const char *f, int l, void *m, long rw);
void *ThreadFunc(void *m) {
AnnotateRWLockAcquired(__FILE__, __LINE__, m, 1);
return 0;
}
int main() {
int m = 0;
AnnotateRWLockAcquired(__FILE__, __LINE__, &m, 1);
pthread_t th;
pthread_create(&th, 0, ThreadFunc, &m);
pthread_join(th, 0);
return 0;
}
// CHECK: WARNING: ThreadSanitizer: double lock of a mutex
// CHECK: #0 AnnotateRWLockAcquired
// CHECK: #1 ThreadFunc
// CHECK: Location is stack of main thread.
// CHECK: Mutex {{.*}} created at:
// CHECK: #0 AnnotateRWLockAcquired
// CHECK: #1 main
// CHECK: SUMMARY: ThreadSanitizer: double lock of a mutex {{.*}}mutex_double_lock.cpp{{.*}}ThreadFunc
|