50 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s2#include "test.h"3 4#if defined(__linux__)5#define USE_PTHREAD_SETNAME_NP __GLIBC_PREREQ(2, 12)6#define tsan_pthread_setname_np pthread_setname_np7#elif defined(__FreeBSD__)8#include <pthread_np.h>9#define USE_PTHREAD_SETNAME_NP 110#define tsan_pthread_setname_np pthread_set_name_np11#elif defined(__NetBSD__)12#define USE_PTHREAD_SETNAME_NP 113#define tsan_pthread_setname_np(a, b) pthread_setname_np((a), "%s", (void *)(b))14#else15#define USE_PTHREAD_SETNAME_NP 016#endif17 18int Global;19 20void *Thread1(void *x) {21 barrier_wait(&barrier);22 AnnotateThreadName(__FILE__, __LINE__, "Thread1");23 Global++;24 return NULL;25}26 27void *Thread2(void *x) {28#if USE_PTHREAD_SETNAME_NP29 tsan_pthread_setname_np(pthread_self(), "Thread2");30#else31 AnnotateThreadName(__FILE__, __LINE__, "Thread2");32#endif33 Global--;34 barrier_wait(&barrier);35 return NULL;36}37 38int main() {39 barrier_init(&barrier, 2);40 pthread_t t[2];41 pthread_create(&t[0], NULL, Thread1, NULL);42 pthread_create(&t[1], NULL, Thread2, NULL);43 pthread_join(t[0], NULL);44 pthread_join(t[1], NULL);45}46 47// CHECK: WARNING: ThreadSanitizer: data race48// CHECK: Thread T1 'Thread1'49// CHECK: Thread T2 'Thread2'50