compiler-rt/test/tsan/default_options.cpp

   1 // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
   2 #include <pthread.h>
   3 #include <stdio.h>
   4
   5 #if (__APPLE__)
   6 __attribute__((weak))
   7 #endif
   8 extern "C" const char *__tsan_default_options() {
   9   return "report_bugs=0";
  10 }
  11
  12 int Global;
  13
  14 void *Thread1(void *x) {
  15   Global = 42;
  16   return NULL;
  17 }
  18
  19 void *Thread2(void *x) {
  20   Global = 43;
  21   return NULL;
  22 }
  23
  24 int main() {
  25   pthread_t t[2];
  26   pthread_create(&t[0], NULL, Thread1, NULL);
  27   pthread_create(&t[1], NULL, Thread2, NULL);
  28   pthread_join(t[0], NULL);
  29   pthread_join(t[1], NULL);
  30   fprintf(stderr, "DONE\n");
  31   return 0;
  32 }
  33
  34 // CHECK-NOT: WARNING: ThreadSanitizer: data race
  35 // CHECK: DONE