6634c1741e
Bug: b/239662094 Test: enable Wunqualified-std-cast-call locally and run m to build Change-Id: I203af8dbbbf1d889b9fc5efd5b62fa165ee09dc2
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
|
|
* Copyright 2020 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <atomic>
|
|
#include <thread>
|
|
|
|
#include "fuzzer/FuzzedDataProvider.h"
|
|
#include "utils/ProcessCallStack.h"
|
|
using android::ProcessCallStack;
|
|
|
|
static constexpr int MAX_NAME_SIZE = 1000;
|
|
static constexpr int MAX_LOG_META_SIZE = 1000;
|
|
static constexpr uint8_t MAX_THREADS = 10;
|
|
|
|
std::atomic_bool ranCallStackUpdate(false);
|
|
void loop() {
|
|
while (!ranCallStackUpdate.load()) {
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(50));
|
|
}
|
|
}
|
|
|
|
void spawnThreads(FuzzedDataProvider* dataProvider) {
|
|
std::vector<std::thread> threads = std::vector<std::thread>();
|
|
|
|
// Get the number of threads to generate
|
|
uint8_t count = dataProvider->ConsumeIntegralInRange<uint8_t>(1, MAX_THREADS);
|
|
|
|
// Generate threads
|
|
for (uint8_t i = 0; i < count; i++) {
|
|
std::string threadName =
|
|
dataProvider->ConsumeRandomLengthString(MAX_NAME_SIZE).append(std::to_string(i));
|
|
std::thread th = std::thread(loop);
|
|
pthread_setname_np(th.native_handle(), threadName.c_str());
|
|
threads.push_back(std::move(th));
|
|
}
|
|
|
|
// Collect thread information
|
|
ProcessCallStack callStack = ProcessCallStack();
|
|
callStack.update();
|
|
|
|
// Tell our patiently waiting threads they can be done now.
|
|
ranCallStackUpdate.store(true);
|
|
|
|
std::string logTag = dataProvider->ConsumeRandomLengthString(MAX_LOG_META_SIZE);
|
|
std::string prefix = dataProvider->ConsumeRandomLengthString(MAX_LOG_META_SIZE);
|
|
// Both of these, along with dump, all call print() under the hood,
|
|
// Which is covered by the Printer fuzzer.
|
|
callStack.log(logTag.c_str());
|
|
callStack.toString(prefix.c_str());
|
|
|
|
// Check size
|
|
callStack.size();
|
|
|
|
// wait for any remaining threads
|
|
for (auto& thread : threads) {
|
|
thread.join();
|
|
}
|
|
}
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
|
|
FuzzedDataProvider dataProvider(data, size);
|
|
spawnThreads(&dataProvider);
|
|
return 0;
|
|
}
|