test/tsan/halt_on_error.cc

   1 // RUN: %clang_tsan -O1 %s -o %t && TSAN_OPTIONS="$TSAN_OPTIONS halt_on_error=1" not %run %t 2>&1 | FileCheck %s
   2 #include <pthread.h>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5
   6 int X;
   7
   8 void *Thread(void *x) {
   9   sleep(1);
  10   X = 42;
  11   return 0;
  12 }
  13
  14 int main() {
  15   fprintf(stderr, "BEFORE\n");
  16   pthread_t t;
  17   pthread_create(&t, 0, Thread, 0);
  18   X = 43;
  19   pthread_join(t, 0);
  20   fprintf(stderr, "AFTER\n");
  21   return 0;
  22 }
  23
  24 // CHECK: BEFORE
  25 // CHECK: WARNING: ThreadSanitizer: data race
  26 // CHECK-NOT: AFTER
  27