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[LibFuzzer] Fix some unit test crashes on OSX.

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This fixes the following unit tests:

FuzzerDictionary.ParseOneDictionaryEntry
FuzzerDictionary.ParseDictionaryFile

The issue appears to be mixing non-ASan-ified code (LibFuzzer) and
ASan-ified code (the unittest) as the tests would pass fine if
everything was built with ASan enabled.

I believe the issue is that different implementations of std::vector<>
are being used in LibFuzzer and outside LibFuzzer (in the unittests).
For Libcxx (I've not seen the issue manifest for libstdc++) we can disable
the ASanified std::vector<> by definining the ``_LIBCPP_HAS_NO_ASAN`` macro.
Doing this fixes the tests on OSX.

Differential Revision: http://reviews.llvm.org/D21049

llvm-svn: 272374
This commit is contained in:
Dan Liew 2016-06-10 05:33:07 +00:00
parent 8db9cc42a5
commit 0e9bdedc89
1 changed files with 4 additions and 0 deletions
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4
lib/Fuzzer/test/FuzzerUnittest.cpp
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@ -1,6 +1,10 @@
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Avoid ODR violations (LibFuzzer is built without ASan and this test is built
// with ASan) involving C++ standard library types when using libcxx.
#define _LIBCPP_HAS_NO_ASAN
#include "FuzzerInternal.h"
#include "gtest/gtest.h"
#include <memory>