| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| // Smoke tests to verify that clang sanitizers are actually working. |
| |
| #include <pthread.h> |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "gtest/gtest.h" |
| |
| namespace perfetto { |
| namespace { |
| |
| #if defined(ADDRESS_SANITIZER) |
| TEST(SanitizerTests, ASAN_UserAfterFree) { |
| EXPECT_DEATH( |
| { |
| void* alloc = malloc(16); |
| volatile char* mem = reinterpret_cast<volatile char*>(alloc); |
| mem[0] = 1; |
| mem[15] = 1; |
| free(alloc); |
| mem[0] = 2; |
| abort(); |
| }, |
| "AddressSanitizer:.*heap-use-after-free"); |
| } |
| #endif // ADDRESS_SANITIZER |
| |
| #if defined(THREAD_SANITIZER) |
| TEST(SanitizerTests, TSAN_ThreadDataRace) { |
| EXPECT_DEATH( |
| { |
| pthread_t thread; |
| volatile int race_var = 0; |
| auto thread_main = [](void* race_var_ptr) -> void* { |
| (*reinterpret_cast<volatile int*>(race_var_ptr))++; |
| return nullptr; |
| }; |
| void* arg = |
| const_cast<void*>(reinterpret_cast<volatile void*>(&race_var)); |
| ASSERT_EQ(0, pthread_create(&thread, nullptr, thread_main, arg)); |
| race_var--; |
| ASSERT_EQ(0, pthread_join(thread, nullptr)); |
| abort(); |
| }, |
| "ThreadSanitizer:.*data race"); |
| } |
| #endif // THREAD_SANITIZER |
| |
| #if defined(MEMORY_SANITIZER) |
| TEST(SanitizerTests, MSAN_UninitializedMemory) { |
| EXPECT_DEATH( |
| { |
| std::unique_ptr<int> mem(new int[10]); |
| volatile int* x = reinterpret_cast<volatile int*>(mem.get()); |
| if (x[rand() % 10] == 42) |
| printf("\n"); |
| abort(); |
| }, |
| "MemorySanitizer:.*use-of-uninitialized-value"); |
| } |
| #endif |
| |
| #if defined(LEAK_SANITIZER) |
| TEST(SanitizerTests, LSAN_LeakMalloc) { |
| EXPECT_DEATH( |
| { |
| void* alloc = malloc(16); |
| reinterpret_cast<volatile char*>(alloc)[0] = 1; |
| alloc = malloc(16); |
| reinterpret_cast<volatile char*>(alloc)[0] = 2; |
| free(alloc); |
| exit(0); // LSan runs on the atexit handler. |
| }, |
| "LeakSanitizer:.*detected memory leaks"); |
| } |
| |
| TEST(SanitizerTests, LSAN_LeakCppNew) { |
| EXPECT_DEATH( |
| { |
| std::unique_ptr<int> alloc(new int(1)); |
| *reinterpret_cast<volatile char*>(alloc.get()) = 1; |
| alloc.release(); |
| alloc.reset(new int(2)); |
| *reinterpret_cast<volatile char*>(alloc.get()) = 2; |
| exit(0); // LSan runs on the atexit handler. |
| }, |
| "LeakSanitizer:.*detected memory leaks"); |
| } |
| #endif // LEAK_SANITIZER |
| |
| #if defined(UNDEFINED_SANITIZER) |
| TEST(SanitizerTests, UBSAN_DivisionByZero) { |
| EXPECT_DEATH( |
| { |
| volatile float div = 1; |
| float res = 3 / (div - 1); |
| ASSERT_GT(res, -1.0f); // just use |res| to make the compiler happy. |
| abort(); |
| }, |
| "error:.*division by zero"); |
| } |
| |
| TEST(SanitizerTests, UBSAN_ShiftExponent) { |
| EXPECT_DEATH( |
| { |
| volatile uint32_t n = 32; |
| volatile uint32_t shift = 31; |
| uint64_t res = n << (shift + 3); |
| ASSERT_NE(1u, res); // just use |res| to make the compiler happy. |
| abort(); |
| }, |
| "error:.*shift exponent"); |
| } |
| #endif // UNDEFINED_SANITIZER |
| |
| #if !defined(ADDRESS_SANITIZER) && !defined(THREAD_SANITIZER) && \ |
| !defined(MEMORY_SANITIZER) && !defined(LEAK_SANITIZER) && \ |
| !defined(UNDEFINED_SANITIZER) |
| TEST(SanitizerTests, NoSanitizersConfigured) { |
| printf("No sanitizers configured!\n"); |
| } |
| #endif |
| |
| } // namespace |
| } // namespace perfetto |