7adb7aa494
When running some tests with --gtest_repeat=100 --gtest_shuffle, I
encountered some problems because the allocator wasn't torn down
completely, and the singleton pointer ended up pointing to a
use-after-scope'd object.
This patch has a couple of fixes and niceties:
1. Removing the once-init stuff from tests, now that it's implicitly
done in GuardedPoolAllocator::installAtFork() anyway.
2. Calling uninitTestOnly() in the late_init test.
3. Resetting the HasReportedBadPoolAccess when the signal handlers are
installed (allowing for --gtest_repeat w/ recoverable mode).
4. Adding a check and resetting the singleton pointer in
uninitTestOnly().
55 lines
2.2 KiB
C++
55 lines
2.2 KiB
C++
//===-- harness.cpp ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "gwp_asan/tests/harness.h"
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#include <string>
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// Optnone to ensure that the calls to these functions are not optimized away,
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// as we're looking for them in the backtraces.
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__attribute__((optnone)) char *
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AllocateMemory(gwp_asan::GuardedPoolAllocator &GPA) {
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return static_cast<char *>(GPA.allocate(1));
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}
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__attribute__((optnone)) void
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DeallocateMemory(gwp_asan::GuardedPoolAllocator &GPA, void *Ptr) {
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GPA.deallocate(Ptr);
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}
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__attribute__((optnone)) void
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DeallocateMemory2(gwp_asan::GuardedPoolAllocator &GPA, void *Ptr) {
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GPA.deallocate(Ptr);
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}
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__attribute__((optnone)) void TouchMemory(void *Ptr) {
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*(reinterpret_cast<volatile char *>(Ptr)) = 7;
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}
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void CheckOnlyOneGwpAsanCrash(const std::string &OutputBuffer) {
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const char *kGwpAsanErrorString = "GWP-ASan detected a memory error";
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size_t FirstIndex = OutputBuffer.find(kGwpAsanErrorString);
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ASSERT_NE(FirstIndex, std::string::npos) << "Didn't detect a GWP-ASan crash";
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ASSERT_EQ(OutputBuffer.find(kGwpAsanErrorString, FirstIndex + 1),
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std::string::npos)
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<< "Detected more than one GWP-ASan crash:\n"
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<< OutputBuffer;
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}
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// Fuchsia does not support recoverable GWP-ASan.
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#if defined(__Fuchsia__)
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INSTANTIATE_TEST_SUITE_P(RecoverableAndNonRecoverableTests,
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BacktraceGuardedPoolAllocatorDeathTest,
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/* Recoverable */ testing::Values(false));
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#else
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INSTANTIATE_TEST_SUITE_P(RecoverableTests, BacktraceGuardedPoolAllocator,
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/* Recoverable */ testing::Values(true));
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GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BacktraceGuardedPoolAllocator);
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INSTANTIATE_TEST_SUITE_P(RecoverableAndNonRecoverableTests,
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BacktraceGuardedPoolAllocatorDeathTest,
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/* Recoverable */ testing::Bool());
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GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BacktraceGuardedPoolAllocatorDeathTest);
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#endif
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