src/compiler-rt/test/tsan/thread_name2.cc

   1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3
   4 #if defined(__FreeBSD__)
   5 #include <pthread_np.h>
   6 #define pthread_setname_np pthread_set_name_np
   7 #endif
   8
   9 long long Global;
  10
  11 void *Thread1(void *x) {
  12   barrier_wait(&barrier);
  13   Global++;
  14   return 0;
  15 }
  16
  17 void *Thread2(void *x) {
  18   pthread_setname_np(pthread_self(), "foobar2");
  19   Global--;
  20   barrier_wait(&barrier);
  21   return 0;
  22 }
  23
  24 int main() {
  25   barrier_init(&barrier, 3);
  26   pthread_t t[2];
  27   pthread_create(&t[0], 0, Thread1, 0);
  28   pthread_create(&t[1], 0, Thread2, 0);
  29   pthread_setname_np(t[0], "foobar1");
  30   barrier_wait(&barrier);
  31   pthread_join(t[0], NULL);
  32   pthread_join(t[1], NULL);
  33 }
  34
  35 // CHECK: WARNING: ThreadSanitizer: data race
  36 // CHECK:   Thread T1 'foobar1'
  37 // CHECK:   Thread T2 'foobar2'