37 lines · cpp
1// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s2#include <pthread.h>3#include <sanitizer/tsan_interface.h>4#include <stdio.h>5 6#if (__APPLE__)7__attribute__((weak))8#endif9extern "C" const char *__tsan_default_options() {10 return "report_bugs=0";11}12 13int Global;14 15void *Thread1(void *x) {16 Global = 42;17 return NULL;18}19 20void *Thread2(void *x) {21 Global = 43;22 return NULL;23}24 25int main() {26 pthread_t t[2];27 pthread_create(&t[0], NULL, Thread1, NULL);28 pthread_create(&t[1], NULL, Thread2, NULL);29 pthread_join(t[0], NULL);30 pthread_join(t[1], NULL);31 fprintf(stderr, "DONE\n");32 return 0;33}34 35// CHECK-NOT: WARNING: ThreadSanitizer: data race36// CHECK: DONE37