1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2// See https://llvm.org/LICENSE.txt for license information.
3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4
5// Check that allocation tracing from different threads does not cause
6// interleaving of stack traces.
7#include <assert.h>
8#include <cstddef>
9#include <cstdint>
10#include <cstring>
11#include <cstdlib>
12#include <thread>
13
14extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
15 auto C = [&] {
16 void * volatile a = malloc(5639);
17 free((void *)a);
18 };
19 std::thread T[] = {std::thread(C), std::thread(C), std::thread(C),
20 std::thread(C), std::thread(C), std::thread(C)};
21 for (auto &X : T)
22 X.join();
23 return 0;
24}
25