compiler-rt/test/tsan/print_full_thread_history.cpp

   1 // RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=print_full_thread_history=true %deflake %run %t 2>&1 | FileCheck %s
   2
   3 #include "test.h"
   4
   5 int Global;
   6
   7 void *Thread2(void *x) {
   8   barrier_wait(&barrier);
   9   Global++;
  10   return NULL;
  11 }
  12
  13 void *Thread3(void *x) {
  14   Global--;
  15   barrier_wait(&barrier);
  16   return NULL;
  17 }
  18
  19 void *Thread1(void *x) {
  20   pthread_t t[2];
  21   pthread_create(&t[0], NULL, Thread2, NULL);
  22   pthread_create(&t[1], NULL, Thread3, NULL);
  23   pthread_join(t[0], NULL);
  24   pthread_join(t[1], NULL);
  25   return NULL;
  26 }
  27
  28 int main() {
  29   barrier_init(&barrier, 2);
  30   pthread_t t;
  31   pthread_create(&t, NULL, Thread1, NULL);
  32   pthread_join(t, NULL);
  33   return 0;
  34 }
  35
  36 // CHECK: WARNING: ThreadSanitizer: data race
  37 // CHECK:        Thread T2 {{.*}} created by thread T1 at
  38 // CHECK:        Thread T3 {{.*}} created by thread T1 at:
  39 // CHECK:        Thread T1 {{.*}} created by main thread at:
  40 // CHECK: SUMMARY: ThreadSanitizer: data race{{.*}}