test/tsan/mutex_bad_read_unlock.cc

   1 // RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
   2 extern "C" void AnnotateRWLockAcquired(const char *f, int l, void *m, long rw);
   3 extern "C" void AnnotateRWLockReleased(const char *f, int l, void *m, long rw);
   4
   5 int main() {
   6   int m = 0;
   7   AnnotateRWLockAcquired(__FILE__, __LINE__, &m, 1);
   8   AnnotateRWLockReleased(__FILE__, __LINE__, &m, 0);
   9   return 0;
  10 }
  11
  12 // CHECK: WARNING: ThreadSanitizer: read unlock of a write locked mutex
  13 // CHECK:     #0 AnnotateRWLockReleased
  14 // CHECK:     #1 main
  15 // CHECK: Location is stack of main thread.
  16 // CHECK:   Mutex {{.*}}) created at:
  17 // CHECK:     #0 AnnotateRWLockAcquired
  18 // CHECK:     #1 main
  19 // CHECK: SUMMARY: ThreadSanitizer: read unlock of a write locked mutex
  20