compiler-rt/test/tsan/mutex_held_wrong_context.cpp

   1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3
   4 pthread_mutex_t mtx;
   5
   6 __attribute__((noinline)) void Func1() {
   7   pthread_mutex_lock(&mtx);
   8   __tsan_check_no_mutexes_held();
   9   pthread_mutex_unlock(&mtx);
  10 }
  11
  12 __attribute__((noinline)) void Func2() {
  13   pthread_mutex_lock(&mtx);
  14   pthread_mutex_unlock(&mtx);
  15   __tsan_check_no_mutexes_held();
  16 }
  17
  18 int main() {
  19   pthread_mutex_init(&mtx, NULL);
  20   Func1();
  21   Func2();
  22   return 0;
  23 }
  24
  25 // CHECK: WARNING: ThreadSanitizer: mutex held in the wrong context
  26 // CHECK:     {{.*}}__tsan_check_no_mutexes_held{{.*}}
  27 // CHECK:     {{.*}}Func1{{.*}}
  28 // CHECK:     {{.*}}main{{.*}}
  29 // CHECK:   Mutex {{.*}} created at:
  30 // CHECK:     {{.*}}pthread_mutex_init{{.*}}
  31 // CHECK:     {{.*}}main{{.*}}
  32 // CHECK: SUMMARY: ThreadSanitizer: mutex held in the wrong context {{.*}}mutex_held_wrong_context.cpp{{.*}}Func1
  33
  34 // CHECK-NOT: SUMMARY: ThreadSanitizer: mutex held in the wrong context {{.*}}mutex_held_wrong_context.cpp{{.*}}Func2