compiler-rt/test/msan/pthread_getattr_np_deadlock.cpp

   1 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && %run %t
   2
   3 // Regression test for a deadlock in pthread_getattr_np
   4
   5 #include <assert.h>
   6 #include <pthread.h>
   7 #if defined(__FreeBSD__)
   8 #include <pthread_np.h>
   9 #endif
  10
  11 void *ThreadFn(void *) {
  12   pthread_attr_t attr;
  13 #if defined(__FreeBSD__)
  14   // On FreeBSD it needs to allocate attr underlying memory
  15   int res = pthread_attr_init(&attr);
  16   assert(!res);
  17   res = pthread_attr_get_np(pthread_self(), &attr);
  18 #else
  19   int res = pthread_getattr_np(pthread_self(), &attr);
  20 #endif
  21   assert(!res);
  22   return 0;
  23 }
  24
  25 int main(void) {
  26   pthread_t t;
  27   int res = pthread_create(&t, 0, ThreadFn, 0);
  28   assert(!res);
  29   res = pthread_join(t, 0);
  30   assert(!res);
  31   return 0;
  32 }