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