1 /*
2 * Copyright (c) 2024 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 "mergewithexistprofile_fuzzer.h"
17 #include <fuzzer/FuzzedDataProvider.h>
18 #include "ecmascript/pgo_profiler/pgo_profiler_encoder.h"
19 #include "ecmascript/pgo_profiler/pgo_profiler_decoder.h"
20
21 using namespace panda;
22 using namespace panda::ecmascript;
23 using namespace panda::ecmascript::pgo;
24
25 namespace OHOS {
MergeWithExistProfileFuzzTest(const uint8_t * data,size_t size)26 void MergeWithExistProfileFuzzTest(const uint8_t* data, size_t size)
27 {
28 FuzzedDataProvider dataProvider(data, size);
29
30 // generate random output path
31 std::string path = "/tmp/fuzz_test" + std::to_string(dataProvider.ConsumeIntegral<uint32_t>());
32
33 // generat random hotnessThreshold and ApGenMode
34 uint32_t hotnessThreshold = dataProvider.ConsumeIntegral<uint32_t>();
35 PGOProfilerEncoder::ApGenMode mode = static_cast<PGOProfilerEncoder::ApGenMode>(
36 dataProvider.ConsumeIntegralInRange<int>(0, 1)
37 );
38
39 auto info = std::make_shared<PGOInfo>(hotnessThreshold);
40 PGOProfilerEncoder encoder(path, mode);
41 encoder.Save(info);
42 std::remove(path.c_str());
43 }
44 }
45
46 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)47 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
48 {
49 // Run your code on data.
50 OHOS::MergeWithExistProfileFuzzTest(data, size);
51 return 0;
52 }