mozglue/build/AsanOptions.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mozglue/build/AsanOptions.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,24 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.7 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "mozilla/Attributes.h"
    1.10 +
    1.11 +// When running with AddressSanitizer, we need to explicitely set some
    1.12 +// options specific to our codebase to prevent errors during runtime.
    1.13 +// 
    1.14 +// Currently, these are:
    1.15 +//
    1.16 +//   allow_user_segv_handler=1 - Tell ASan to allow our code to use its
    1.17 +//   own SIGSEGV handlers. This is required by ASM.js internally.
    1.18 +//
    1.19 +//   alloc_dealloc_mismatch=0 - Disable alloc-dealloc mismatch checking
    1.20 +//   in ASan. This is required because we define our own new/delete
    1.21 +//   operators that are backed by malloc/free. If one of them gets inlined
    1.22 +//   while the other doesn't, ASan will report false positives.
    1.23 +//
    1.24 +extern "C" MOZ_ASAN_BLACKLIST
    1.25 +const char* __asan_default_options() {
    1.26 +    return "allow_user_segv_handler=1:alloc_dealloc_mismatch=0";
    1.27 +}

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