compiler-rt/test/tsan/pthread_key.cpp

   1 // RUN: %clangxx_tsan -O1 %s -DBUILD_SO -fPIC -shared -o %t-so.so
   2 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
   3
   4 // Extracted from:
   5 // https://bugs.chromium.org/p/v8/issues/detail?id=4995
   6
   7 #include "test.h"
   8
   9 void* thr(void* arg) {
  10   const int N = 32;
  11   pthread_key_t keys_[N];
  12   for (size_t i = 0; i < N; ++i) {
  13     int err = pthread_key_create(&keys_[i], 0);
  14     if (err) {
  15       fprintf(stderr, "pthread_key_create failed with %d\n", err);
  16       exit(1);
  17     }
  18   }
  19   for (size_t i = 0; i < N; i++)
  20     pthread_setspecific(keys_[i], (void*)(long)i);
  21   for (size_t i = 0; i < N; i++)
  22     pthread_key_delete(keys_[i]);
  23   return 0;
  24 }
  25
  26 int main() {
  27   for (int i = 0; i < 10; i++) {
  28     pthread_t th;
  29     pthread_create(&th, 0, thr, 0);
  30     pthread_join(th, 0);
  31   }
  32   pthread_t th[2];
  33   pthread_create(&th[0], 0, thr, 0);
  34   pthread_create(&th[1], 0, thr, 0);
  35   pthread_join(th[0], 0);
  36   pthread_join(th[1], 0);
  37   fprintf(stderr, "DONE\n");
  38   // CHECK: DONE
  39 }