| 1 | //===-- harness.cpp ---------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "gwp_asan/tests/harness.h" |
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| 10 | |
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| 11 | #include <string> |
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| 12 | |
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| 13 | // Optnone to ensure that the calls to these functions are not optimized away, |
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| 14 | // as we're looking for them in the backtraces. |
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| 15 | __attribute__((optnone)) char * |
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| 16 | AllocateMemory(gwp_asan::GuardedPoolAllocator &GPA) { |
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| 17 | return static_cast<char *>(GPA.allocate(Size: 1)); |
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| 18 | } |
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| 19 | __attribute__((optnone)) void |
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| 20 | DeallocateMemory(gwp_asan::GuardedPoolAllocator &GPA, void *Ptr) { |
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| 21 | GPA.deallocate(Ptr); |
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| 22 | } |
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| 23 | __attribute__((optnone)) void |
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| 24 | DeallocateMemory2(gwp_asan::GuardedPoolAllocator &GPA, void *Ptr) { |
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| 25 | GPA.deallocate(Ptr); |
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| 26 | } |
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| 27 | __attribute__((optnone)) void TouchMemory(void *Ptr) { |
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| 28 | *(reinterpret_cast<volatile char *>(Ptr)) = 7; |
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| 29 | } |
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| 30 | |
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| 31 | void CheckOnlyOneGwpAsanCrash(const std::string &OutputBuffer) { |
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| 32 | const char *kGwpAsanErrorString = "GWP-ASan detected a memory error" ; |
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| 33 | size_t FirstIndex = OutputBuffer.find(kGwpAsanErrorString); |
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| 34 | ASSERT_NE(FirstIndex, std::string::npos) << "Didn't detect a GWP-ASan crash" ; |
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| 35 | ASSERT_EQ(OutputBuffer.find(kGwpAsanErrorString, FirstIndex + 1), |
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| 36 | std::string::npos) |
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| 37 | << "Detected more than one GWP-ASan crash:\n" |
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| 38 | << OutputBuffer; |
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| 39 | } |
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| 40 | |
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| 41 | // Fuchsia does not support recoverable GWP-ASan. |
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| 42 | #if defined(__Fuchsia__) |
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| 43 | INSTANTIATE_TEST_SUITE_P(RecoverableAndNonRecoverableTests, |
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| 44 | BacktraceGuardedPoolAllocatorDeathTest, |
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| 45 | /* Recoverable */ testing::Values(false)); |
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| 46 | #else |
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| 47 | INSTANTIATE_TEST_SUITE_P(RecoverableTests, BacktraceGuardedPoolAllocator, |
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| 48 | /* Recoverable */ testing::Values(true)); |
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| 49 | GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BacktraceGuardedPoolAllocator); |
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| 50 | INSTANTIATE_TEST_SUITE_P(RecoverableAndNonRecoverableTests, |
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| 51 | BacktraceGuardedPoolAllocatorDeathTest, |
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| 52 | /* Recoverable */ testing::Bool()); |
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| 53 | GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BacktraceGuardedPoolAllocatorDeathTest); |
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| 54 | #endif |
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| 55 | |
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