39 lines · c
1// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s2#include "test.h"3 4void *thr(void *arg) {5 // Create a sync object on stack, so there is something to free on thread end.6 volatile int x;7 __atomic_fetch_add(&x, 1, __ATOMIC_SEQ_CST);8 barrier_wait(&barrier);9 return 0;10}11 12int main() {13 const int kThreads = 300;14 const int kIters = 10;15 barrier_init(&barrier, kThreads + 1);16 pthread_attr_t attr;17 pthread_attr_init(&attr);18 pthread_attr_setstacksize(&attr, 16 << 20);19 for (int iter = 0; iter < kIters; iter++) {20 pthread_t threads[kThreads];21 for (int t = 0; t < kThreads; t++) {22 int err = pthread_create(&threads[t], &attr, thr, 0);23 if (err) {24 fprintf(stderr, "Failed to create thread #%d\n", t);25 return 1;26 }27 }28 barrier_wait(&barrier);29 for (int t = 0; t < kThreads; t++)30 pthread_join(threads[t], 0);31 }32 pthread_attr_destroy(&attr);33 fprintf(stderr, "DONE\n");34 return 0;35}36 37// CHECK: DONE38 39