compiler-rt/test/tsan/mutex_lock_destroyed.cpp

   1 // RUN: %clangxx_tsan %s -o %t
   2 // RUN: %deflake %run %t | FileCheck %s
   3 // RUN: %deflake %run %t 1 | FileCheck %s
   4
   5 // The pthread_mutex_lock interceptor assumes incompatible internals w/ NetBSD
   6 // XFAIL: target={{.*netbsd.*}}
   7
   8 #include <pthread.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11
  12 int main(int argc, char *argv[]) {
  13   pthread_mutex_t *m = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t));
  14   pthread_mutex_init(m, 0);
  15   pthread_mutex_lock(m);
  16   pthread_mutex_unlock(m);
  17   pthread_mutex_destroy(m);
  18
  19   if (argc > 1 && argv[1][0] == '1')
  20     free(m);
  21
  22   pthread_mutex_lock(m);
  23   // CHECK: WARNING: ThreadSanitizer: use of an invalid mutex (e.g. uninitialized or destroyed)
  24   // CHECK:   #0 pthread_mutex_lock
  25   // CHECK:   #1 main {{.*}}mutex_lock_destroyed.cpp:[[@LINE-3]]
  26
  27   return 0;
  28 }