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// 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.cc{{.*}}ThreadFunc
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