7339ca278c
Summary: Adds two flavours of generic unwinder and all the supporting cruft. If the supporting allocator is okay with bringing in sanitizer_common, they can use the fast frame-pointer based unwinder from sanitizer_common. Otherwise, we also provide the backtrace() libc-based unwinder as well. Of course, the allocator can always specify its own unwinder and unwinder-symbolizer. The slightly changed output format is exemplified in the first comment on this patch. It now better incorporates backtrace information, and displays allocation details on the second line. Reviewers: eugenis, vlad.tsyrklevich Reviewed By: eugenis, vlad.tsyrklevich Subscribers: srhines, kubamracek, mgorny, cryptoad, #sanitizers, llvm-commits, morehouse Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D63841 llvm-svn: 364941
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
//===-- backtrace.cc --------------------------------------------*- 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 <string>
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#include "gwp_asan/tests/harness.h"
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TEST_F(BacktraceGuardedPoolAllocator, DoubleFree) {
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void *Ptr = GPA.allocate(1);
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GPA.deallocate(Ptr);
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std::string DeathRegex = "Double free.*";
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DeathRegex.append("backtrace\\.cpp:25.*");
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DeathRegex.append("was deallocated.*");
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DeathRegex.append("backtrace\\.cpp:15.*");
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DeathRegex.append("was allocated.*");
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DeathRegex.append("backtrace\\.cpp:14.*");
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ASSERT_DEATH(GPA.deallocate(Ptr), DeathRegex);
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}
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TEST_F(BacktraceGuardedPoolAllocator, UseAfterFree) {
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char *Ptr = static_cast<char *>(GPA.allocate(1));
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GPA.deallocate(Ptr);
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std::string DeathRegex = "Use after free.*";
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DeathRegex.append("backtrace\\.cpp:40.*");
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DeathRegex.append("was deallocated.*");
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DeathRegex.append("backtrace\\.cpp:30.*");
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DeathRegex.append("was allocated.*");
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DeathRegex.append("backtrace\\.cpp:29.*");
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ASSERT_DEATH({ *Ptr = 7; }, DeathRegex);
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}
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