1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
4 * You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 #include "mozilla/Attributes.h"
7
8 #ifndef _MSC_VER // Not supported by clang-cl yet
9
10 // When running with AddressSanitizer, we need to explicitly set some
11 // options specific to our codebase to prevent errors during runtime.
12 // To override these, set the ASAN_OPTIONS environment variable.
13 //
14 // Currently, these are:
15 //
16 // allow_user_segv_handler=1 - Tell ASan to allow our code to use its
17 // own SIGSEGV handlers. This is required by ASM.js internally.
18 //
19 // alloc_dealloc_mismatch=0 - Disable alloc-dealloc mismatch checking
20 // in ASan. This is required because we define our own new/delete
21 // operators that are backed by malloc/free. If one of them gets inlined
22 // while the other doesn't, ASan will report false positives.
23 //
24 // detect_leaks=0 - Disable LeakSanitizer. This is required because
25 // otherwise leak checking will be enabled for various building and
26 // testing executables where we don't care much about leaks. Enabling
27 // this will also likely require setting LSAN_OPTIONS with a suppression
28 // file, as in build/sanitizers/lsan_suppressions.txt.
29 //
30 extern "C" MOZ_ASAN_BLACKLIST
__asan_default_options()31 const char* __asan_default_options() {
32 return "allow_user_segv_handler=1:alloc_dealloc_mismatch=0:detect_leaks=0";
33 }
34
35 #endif
36