123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203 |
- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- //
- // This file contains the default options for various compiler-based dynamic
- // tools.
- #include "build/build_config.h"
- #if defined(ADDRESS_SANITIZER) || defined(LEAK_SANITIZER) || \
- defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER) || \
- defined(UNDEFINED_SANITIZER)
- // The callbacks we define here will be called from the sanitizer runtime, but
- // aren't referenced from the Chrome executable. We must ensure that those
- // callbacks are not sanitizer-instrumented, and that they aren't stripped by
- // the linker.
- #define SANITIZER_HOOK_ATTRIBUTE \
- extern "C" \
- __attribute__((no_sanitize("address", "memory", "thread", "undefined"))) \
- __attribute__((visibility("default"))) \
- __attribute__((used))
- // Functions returning default options are declared weak in the tools' runtime
- // libraries. To make the linker pick the strong replacements for those
- // functions from this module, we explicitly force its inclusion by passing
- // -Wl,-u_sanitizer_options_link_helper
- // SANITIZER_HOOK_ATTRIBUTE instead of just `extern "C"` solely to make the
- // symbol externally visible, for ToolsSanityTest.LinksSanitizerOptions.
- SANITIZER_HOOK_ATTRIBUTE void _sanitizer_options_link_helper() {}
- #endif
- #if defined(ADDRESS_SANITIZER)
- // Default options for AddressSanitizer in various configurations:
- // strip_path_prefix=/../../ - prefixes up to and including this
- // substring will be stripped from source file paths in symbolized reports
- // fast_unwind_on_fatal=1 - use the fast (frame-pointer-based) stack unwinder
- // to print error reports. V8 doesn't generate debug info for the JIT code,
- // so the slow unwinder may not work properly.
- // detect_stack_use_after_return=1 - use fake stack to delay the reuse of
- // stack allocations and detect stack-use-after-return errors.
- // symbolize=1 - enable in-process symbolization.
- // external_symbolizer_path=... - provides the path to llvm-symbolizer
- // relative to the main executable
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- const char kAsanDefaultOptions[] =
- "strip_path_prefix=/../../ fast_unwind_on_fatal=1 "
- "detect_stack_use_after_return=1 symbolize=1 detect_leaks=0 "
- "external_symbolizer_path=%d/../../third_party/llvm-build/Release+Asserts/"
- "bin/llvm-symbolizer";
- #elif BUILDFLAG(IS_APPLE)
- const char* kAsanDefaultOptions =
- "strip_path_prefix=/../../ fast_unwind_on_fatal=1 "
- "detect_stack_use_after_return=1 ";
- #elif BUILDFLAG(IS_WIN)
- const char* kAsanDefaultOptions =
- "strip_path_prefix=\\..\\..\\ fast_unwind_on_fatal=1 "
- "detect_stack_use_after_return=1 symbolize=1 "
- "external_symbolizer_path=%d/../../third_party/"
- "llvm-build/Release+Asserts/bin/llvm-symbolizer.exe";
- #endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_APPLE) || \
- BUILDFLAG(IS_WIN)
- // Allow NaCl to override the default asan options.
- extern const char* kAsanDefaultOptionsNaCl;
- __attribute__((weak)) const char* kAsanDefaultOptionsNaCl = nullptr;
- SANITIZER_HOOK_ATTRIBUTE const char *__asan_default_options() {
- if (kAsanDefaultOptionsNaCl)
- return kAsanDefaultOptionsNaCl;
- return kAsanDefaultOptions;
- }
- extern char kASanDefaultSuppressions[];
- SANITIZER_HOOK_ATTRIBUTE const char *__asan_default_suppressions() {
- return kASanDefaultSuppressions;
- }
- #endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_APPLE)
- // || BUILDFLAG(IS_WIN)
- #endif // ADDRESS_SANITIZER
- #if defined(THREAD_SANITIZER) && (BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS))
- // Default options for ThreadSanitizer in various configurations:
- // second_deadlock_stack=1 - more verbose deadlock reports.
- // report_signal_unsafe=0 - do not report async-signal-unsafe functions
- // called from signal handlers.
- // report_thread_leaks=0 - do not report unjoined threads at the end of
- // the program execution.
- // print_suppressions=1 - print the list of matched suppressions.
- // history_size=7 - make the history buffer proportional to 2^7 (the maximum
- // value) to keep more stack traces.
- // strip_path_prefix=/../../ - prefixes up to and including this
- // substring will be stripped from source file paths in symbolized reports.
- // external_symbolizer_path=... - provides the path to llvm-symbolizer
- // relative to the main executable
- const char kTsanDefaultOptions[] =
- "second_deadlock_stack=1 report_signal_unsafe=0 "
- "report_thread_leaks=0 print_suppressions=1 history_size=7 "
- "strip_path_prefix=/../../ external_symbolizer_path=%d/../../third_party/"
- "llvm-build/Release+Asserts/bin/llvm-symbolizer";
- SANITIZER_HOOK_ATTRIBUTE const char *__tsan_default_options() {
- return kTsanDefaultOptions;
- }
- extern char kTSanDefaultSuppressions[];
- SANITIZER_HOOK_ATTRIBUTE const char *__tsan_default_suppressions() {
- return kTSanDefaultSuppressions;
- }
- #endif // defined(THREAD_SANITIZER) && (BUILDFLAG(IS_LINUX) ||
- // BUILDFLAG(IS_CHROMEOS))
- #if defined(MEMORY_SANITIZER)
- // Default options for MemorySanitizer:
- // strip_path_prefix=/../../ - prefixes up to and including this
- // substring will be stripped from source file paths in symbolized reports.
- // external_symbolizer_path=... - provides the path to llvm-symbolizer
- // relative to the main executable
- const char kMsanDefaultOptions[] =
- "strip_path_prefix=/../../ "
- #if !BUILDFLAG(IS_APPLE)
- "external_symbolizer_path=%d/../../third_party/llvm-build/Release+Asserts/"
- "bin/llvm-symbolizer"
- #endif
- ;
- SANITIZER_HOOK_ATTRIBUTE const char *__msan_default_options() {
- return kMsanDefaultOptions;
- }
- #endif // MEMORY_SANITIZER
- #if defined(LEAK_SANITIZER)
- // Default options for LeakSanitizer:
- // strip_path_prefix=/../../ - prefixes up to and including this
- // substring will be stripped from source file paths in symbolized reports.
- // external_symbolizer_path=... - provides the path to llvm-symbolizer
- // relative to the main executable
- // use_poisoned=1 - Scan poisoned memory. This is useful for Oilpan (C++
- // garbage collection) which wants to exclude its managed memory from being
- // reported as leaks (through root regions) and also temporarily poisons
- // memory regions before calling destructors of objects to avoid destructors
- // cross-referencing memory in other objects. Main thread termination in
- // Blink is not graceful and leak checks may be emitted at any time, which
- // means that the garbage collector may be in a state with poisoned memory,
- // leading to false-positive reports.
- const char kLsanDefaultOptions[] =
- "strip_path_prefix=/../../ use_poisoned=1 "
- #if !BUILDFLAG(IS_APPLE) && !BUILDFLAG(IS_FUCHSIA)
- "external_symbolizer_path=%d/../../third_party/llvm-build/Release+Asserts/"
- "bin/llvm-symbolizer "
- #endif
- #if defined(ARCH_CPU_64_BITS)
- // When pointer compression in V8 is enabled the external pointers in the
- // heap are guaranteed to be only 4 bytes aligned. So we need this option
- // in order to ensure that LSAN will find all the external pointers.
- // TODO(crbug.com/328552): see updates from 2019.
- "use_unaligned=1 "
- #endif // ARCH_CPU_64_BITS
- ;
- SANITIZER_HOOK_ATTRIBUTE const char *__lsan_default_options() {
- return kLsanDefaultOptions;
- }
- // TODO(https://fxbug.dev/102967): Remove when Fuchsia supports
- // module-name-based and function-name-based suppression.
- #if !BUILDFLAG(IS_FUCHSIA)
- extern char kLSanDefaultSuppressions[];
- SANITIZER_HOOK_ATTRIBUTE const char *__lsan_default_suppressions() {
- return kLSanDefaultSuppressions;
- }
- #endif // !BUILDFLAG(IS_FUCHSIA)
- #endif // LEAK_SANITIZER
- #if defined(UNDEFINED_SANITIZER)
- // Default options for UndefinedBehaviorSanitizer:
- // print_stacktrace=1 - print the stacktrace when UBSan reports an error.
- const char kUbsanDefaultOptions[] =
- "print_stacktrace=1 strip_path_prefix=/../../ "
- #if !BUILDFLAG(IS_APPLE)
- "external_symbolizer_path=%d/../../third_party/llvm-build/Release+Asserts/"
- "bin/llvm-symbolizer"
- #endif
- ;
- SANITIZER_HOOK_ATTRIBUTE const char* __ubsan_default_options() {
- return kUbsanDefaultOptions;
- }
- #endif // UNDEFINED_SANITIZER
|