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// Tests OOM handling when there is a single large allocation.
6#include <assert.h>
7#include <cstddef>
8#include <cstdint>
9#include <cstdlib>
10#include <cstring>
11#include <iostream>
12
13static volatile char *SinkPtr;
14
15extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
16 if (Size > 0 && Data[0] == 'H') {
17 if (Size > 1 && Data[1] == 'i') {
18 if (Size > 2 && Data[2] == '!') {
19 size_t kSize = (size_t)1 << 31;
20 char *p = new char[kSize];
21 memset(s: p, c: 0, n: kSize);
22 SinkPtr = p;
23 delete [] p;
24 }
25 }
26 }
27 return 0;
28}
29
30

source code of compiler-rt/test/fuzzer/OneHugeAllocTest.cpp