| // Test that Thread objects are reused. |
| // RUN: %clangxx_hwasan -mllvm -hwasan-globals=0 -mllvm -hwasan-instrument-stack=0 %s -o %t && %env_hwasan_opts=verbose_threads=1 %run %t 2>&1 | FileCheck %s |
| |
| #include <assert.h> |
| #include <fcntl.h> |
| #include <pthread.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| #include <sanitizer/hwasan_interface.h> |
| |
| pthread_barrier_t bar; |
| |
| void *threadfn(void *) { |
| pthread_barrier_wait(&bar); |
| return nullptr; |
| } |
| |
| void start_stop_threads() { |
| constexpr int N = 2; |
| pthread_t threads[N]; |
| |
| pthread_barrier_init(&bar, nullptr, N + 1); |
| for (auto &t : threads) |
| pthread_create(&t, nullptr, threadfn, nullptr); |
| |
| pthread_barrier_wait(&bar); |
| |
| for (auto &t : threads) |
| pthread_join(t, nullptr); |
| pthread_barrier_destroy(&bar); |
| } |
| |
| int main() { |
| // Cut off initial threads. |
| // CHECK: === test start === |
| fprintf(stderr, "=== test start ===\n"); |
| |
| // CHECK: Creating : T{{[0-9]+}} [[A:0x[0-9a-f]+]] stack: |
| // CHECK: Creating : T{{[0-9]+}} [[B:0x[0-9a-f]+]] stack: |
| start_stop_threads(); |
| |
| // CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack: |
| // CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack: |
| start_stop_threads(); |
| |
| // CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack: |
| // CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack: |
| start_stop_threads(); |
| |
| return 0; |
| } |