1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "mergeapfiles_fuzzer.h"
17 #include <fuzzer/FuzzedDataProvider.h>
18 #include "ecmascript/pgo_profiler/pgo_profiler_manager.h"
19
20 using namespace panda;
21 using PGOProfilerManager = panda::ecmascript::pgo::PGOProfilerManager;
22 using ApGenMode = panda::ecmascript::pgo::ApGenMode;
23
24 namespace OHOS {
25 constexpr size_t MIN_FUZZ_INPUT = 8;
26
MergeApFilesFuzzTest(const uint8_t * data,size_t size)27 bool MergeApFilesFuzzTest(const uint8_t *data, size_t size)
28 {
29 if (size < MIN_FUZZ_INPUT) {
30 return false;
31 }
32
33 FuzzedDataProvider provider(data, size);
34
35 std::string inFiles = "/tmp/fuzz_test_loadfull.ap";
36
37 // write file
38 std::ofstream outFile(inFiles, std::ios::binary);
39 if (outFile.is_open()) {
40 outFile.write(reinterpret_cast<const char *>(data), size);
41 outFile.close();
42 } else {
43 return false;
44 }
45
46 std::string outPath = "/tmp/fuzz_test" + std::to_string(provider.ConsumeIntegral<uint32_t>());
47
48 // generat random hotnessThreshold and ApGenMode
49 uint32_t hotnessThreshold = provider.ConsumeIntegral<uint32_t>();
50 ApGenMode mode = static_cast<ApGenMode>(provider.ConsumeIntegralInRange<int>(0, 1));
51
52 bool result = PGOProfilerManager::GetInstance()->MergeApFiles(inFiles, outPath, hotnessThreshold, mode);
53
54 std::remove(outPath.c_str());
55
56 return result;
57 }
58 } // namespace OHOS
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
62 {
63 OHOS::MergeApFilesFuzzTest(data, size);
64 return 0;
65 }