compiler-rt/test/tsan/mutex_double_lock.cpp

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