зеркало из https://github.com/mozilla/gecko-dev.git
182 строки
7.4 KiB
C++
182 строки
7.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Attributes.h"
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#ifndef _MSC_VER // Not supported by clang-cl yet
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// When running with AddressSanitizer, we need to explicitly set some
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// options specific to our codebase to prevent errors during runtime.
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// To override these, set the ASAN_OPTIONS environment variable.
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//
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// Currently, these are:
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//
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// allow_user_segv_handler=1 - Tell ASan to allow our code to use its
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// own SIGSEGV handlers. This is required by ASM.js internally.
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//
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// alloc_dealloc_mismatch=0 - Disable alloc-dealloc mismatch checking
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// in ASan. This is required because we define our own new/delete
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// operators that are backed by malloc/free. If one of them gets inlined
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// while the other doesn't, ASan will report false positives.
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//
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// detect_leaks=0 - Disable LeakSanitizer. This is required because
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// otherwise leak checking will be enabled for various building and
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// testing executables where we don't care much about leaks.
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//
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// allocator_may_return_null=1 - Tell ASan to return NULL when an allocation
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// fails instead of aborting the program. This allows us to handle failing
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// allocations the same way we would handle them with a regular allocator and
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// also uncovers potential bugs that might occur in these situations.
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//
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// max_malloc_fill_size - Tell ASan to initialize memory to a certain value
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// when it is allocated. This option specifies the maximum allocation size
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// for which ASan should still initialize the memory. The value we specify
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// here is exactly 256MiB.
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//
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// max_free_fill_size - Similar to max_malloc_fill_size, tell ASan to
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// overwrite memory with a certain value when it is freed. Again, the value
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// here specifies the maximum allocation size, larger allocations will
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// skipped.
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//
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// malloc_fill_byte / free_fill_byte - These values specify the byte values
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// used to initialize/overwrite memory in conjunction with the previous
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// options max_malloc_fill_size and max_free_fill_size. The values used here
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// are 0xe4 and 0xe5 to match the kAllocPoison and kAllocJunk constants used
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// by mozjemalloc.
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//
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// malloc_context_size - This value specifies how many stack frames are
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// stored for each malloc and free call. Since Firefox can have lots of deep
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// stacks with allocations, we limit the default size here further to save
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// some memory.
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//
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// fast_unwind_on_check - Use the fast (frame-pointer-based) stack unwinder
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// for internal CHECK failures. The slow unwinder doesn't work on Android.
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//
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// fast_unwind_on_fatal - Use the fast (frame-pointer-based) stack unwinder
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// to print fatal error reports. The slow unwinder doesn't work on Android.
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//
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// !! Note: __asan_default_options is not used on Android! (bug 1576213)
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// These should be updated in:
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// mobile/android/geckoview/src/asan/resources/lib/*/wrap.sh
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//
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extern "C" MOZ_ASAN_BLACKLIST const char* __asan_default_options() {
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return "allow_user_segv_handler=1:alloc_dealloc_mismatch=0:detect_leaks=0"
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# ifdef MOZ_ASAN_REPORTER
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":malloc_context_size=20"
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# endif
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# ifdef __ANDROID__
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":fast_unwind_on_check=1:fast_unwind_on_fatal=1"
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# endif
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":max_free_fill_size=268435456:max_malloc_fill_size=268435456"
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":malloc_fill_byte=228:free_fill_byte=229"
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":handle_sigill=1"
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":allocator_may_return_null=1";
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}
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// !!! Please do not add suppressions for new leaks in Gecko code, unless they
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// are intentional !!!
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extern "C" const char* __lsan_default_suppressions() {
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return "# Add your suppressions below\n"
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// LSan runs with a shallow stack depth and no debug symbols, so some
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// small intentional leaks in system libraries show up with this. You
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// do not want this enabled when running locally with a deep stack, as
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// it can catch too much.
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"leak:libc.so\n"
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// nsComponentManagerImpl intentionally leaks factory entries, and
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// probably some other stuff.
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"leak:nsComponentManagerImpl\n"
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// These two variants are needed when fast unwind is disabled and stack
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// depth is limited.
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"leak:mozJSComponentLoader::LoadModule\n"
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"leak:nsNativeModuleLoader::LoadModule\n"
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// Bug 981220 - Pixman fails to free TLS memory.
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"leak:pixman_implementation_lookup_composite\n"
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// Bug 987918 - Font shutdown leaks when CLEANUP_MEMORY is not enabled.
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"leak:libfontconfig.so\n"
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"leak:libfreetype.so\n"
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"leak:GI___strdup\n"
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// The symbol is really __GI___strdup, but if you have the leading _,
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// it doesn't suppress it.
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// Bug 1078015 - If the process terminates during a PR_Sleep, LSAN
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// detects a leak
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"leak:PR_Sleep\n"
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// Bug 1363976 - Stylo holds some global data alive forever.
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"leak:style::global_style_data\n"
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//
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// Many leaks only affect some test suites. The suite annotations are
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// not checked.
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//
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// Bug 979928 - WebRTC leaks in different mochitest suites.
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"leak:NR_reg_init\n"
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// nr_reg_local_init should be redundant with NR_reg_init, but on
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// Aurora we get fewer stack frames for some reason.
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"leak:nr_reg_local_init\n"
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"leak:r_log_register\n"
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"leak:nr_reg_set\n"
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// This is a one-time leak in mochitest-bc, so it is probably okay to
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// ignore.
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"leak:GlobalPrinters::InitializeGlobalPrinters\n"
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"leak:nsPSPrinterList::GetPrinterList\n"
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// Bug 1028456 - Various NSPR fd-related leaks in different mochitest
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// suites.
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"leak:_PR_Getfd\n"
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// Bug 1028483 - The XML parser sometimes leaks an object. Mostly
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// happens in toolkit/components/thumbnails.
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"leak:processInternalEntity\n"
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// Bug 1187421 - NSS does not always free the error stack in different
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// mochitest suites.
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"leak:nss_ClearErrorStack\n"
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//
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// Leaks with system libraries in their stacks. These show up across a
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// number of tests. Better symbols and disabling fast stackwalking may
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// help diagnose these.
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//
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"leak:libcairo.so\n"
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"leak:libdl.so\n"
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"leak:libdricore.so\n"
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"leak:libdricore9.2.1.so\n"
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"leak:libGL.so\n"
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"leak:libglib-2.0.so\n"
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"leak:libglsl.so\n"
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"leak:libp11-kit.so\n"
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"leak:libpixman-1.so\n"
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"leak:libpulse.so\n"
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// lubpulsecommon 1.1 is Ubuntu 12.04
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"leak:libpulsecommon-1.1.so\n"
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// lubpulsecommon 1.1 is Ubuntu 16.04
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"leak:libpulsecommon-8.0.so\n"
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"leak:libresolv.so\n"
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"leak:libstdc++.so\n"
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"leak:libXrandr.so\n"
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"leak:pthread_setspecific_internal\n"
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"leak:swrast_dri.so\n"
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"leak:js::frontend::BytecodeEmitter:\n"
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"leak:js::frontend::GeneralParser\n"
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"leak:js::frontend::Parse\n"
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"leak:xpc::CIGSHelper\n"
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"leak:mozJSComponentLoader\n"
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"leak:mozilla::xpcom::ConstructJSMComponent\n"
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"leak:XPCWrappedNativeJSOps\n"
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// End of suppressions.
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; // Please keep this semicolon.
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}
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#endif // _MSC_VER
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