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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "base/test/multiprocess_test.h"
#include "base/test/task_environment.h"
#include "base/test/test_timeouts.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "components/crash/core/common/crash_key.h"
#include "components/gwp_asan/client/lightweight_detector/partitionalloc_shims.h"
#include "components/gwp_asan/client/lightweight_detector/poison_metadata_recorder.h"
#include "components/gwp_asan/client/lightweight_detector/random_eviction_quarantine.h"
#include "components/gwp_asan/common/lightweight_detector_state.h"
#include "partition_alloc/shim/allocator_shim.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/multiprocess_func_list.h"
// These tests install global malloc hooks so they are not safe to run
// in multi-threaded contexts. Instead they're implemented as multi-process
// tests.
namespace gwp_asan::internal::lud {
namespace {
constexpr int kSuccess = 0;
constexpr int kFailure = 1;
// Leave enough space to catch the test allocation, considering potential
// implicit allocations.
constexpr size_t kMaxAllocationCount = 1024;
constexpr size_t kMaxTotalSize = 65536;
constexpr size_t kTotalSizeHighWaterMark = kMaxTotalSize - 1;
constexpr size_t kTotalSizeLowWaterMark = kTotalSizeHighWaterMark - 1;
constexpr size_t kEvictionChunkSize = 1;
constexpr size_t kEvictionTaskIntervalMs = 1000;
// Sample every allocation.
constexpr size_t kSamplingFrequency = 1;
} // namespace
class MallocShimsTest : public base::MultiProcessTest {
protected:
void runTest(const char* name) {
base::Process process = SpawnChild(name);
int exit_code = -1;
ASSERT_TRUE(WaitForMultiprocessTestChildExit(
process, TestTimeouts::action_max_timeout(), &exit_code));
EXPECT_EQ(exit_code, kSuccess);
}
};
MULTIPROCESS_TEST_MAIN(MallocShimsTest_Basic) {
base::test::TaskEnvironment task_environment{
base::test::TaskEnvironment::TimeSource::MOCK_TIME,
base::test::TaskEnvironment::ThreadPoolExecutionMode::QUEUED,
};
#if BUILDFLAG(IS_APPLE)
allocator_shim::InitializeAllocatorShim();
#endif // BUILDFLAG(IS_APPLE)
crash_reporter::InitializeCrashKeys();
PoisonMetadataRecorder::Init(LightweightDetectorMode::kRandom,
kMaxAllocationCount);
InstallMallocHooks(kMaxAllocationCount, kMaxTotalSize,
kTotalSizeHighWaterMark, kTotalSizeLowWaterMark,
kEvictionChunkSize, kEvictionTaskIntervalMs,
kSamplingFrequency);
char* ptr = new char;
delete ptr;
if (PoisonMetadataRecorder::Get()->HasAllocationForTesting(
reinterpret_cast<uintptr_t>(ptr))) {
return kSuccess;
}
return kFailure;
}
TEST_F(MallocShimsTest, Basic) {
runTest("MallocShimsTest_Basic");
}
} // namespace gwp_asan::internal::lud
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