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Diffstat (limited to 'third_party/libwebrtc/build/sanitizers/sanitizer_options.cc')
| -rw-r--r-- | third_party/libwebrtc/build/sanitizers/sanitizer_options.cc | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/sanitizers/sanitizer_options.cc b/third_party/libwebrtc/build/sanitizers/sanitizer_options.cc new file mode 100644 index 0000000000..d3ab861773 --- /dev/null +++ b/third_party/libwebrtc/build/sanitizers/sanitizer_options.cc @@ -0,0 +1,205 @@ +// 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) +// 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 +extern "C" +void _sanitizer_options_link_helper() { } + +// 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)) +#endif + +#if defined(ADDRESS_SANITIZER) +// Default options for AddressSanitizer in various configurations: +// check_printf=1 - check the memory accesses to printf (and other formatted +// output routines) arguments. +// use_sigaltstack=1 - handle signals on an alternate signal stack. Useful +// for stack overflow detection. +// 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 defined(OS_LINUX) || defined(OS_CHROMEOS) +const char kAsanDefaultOptions[] = + "check_printf=1 use_sigaltstack=1 strip_path_prefix=/../../ " + "fast_unwind_on_fatal=1 detect_stack_use_after_return=1 " + "symbolize=1 detect_leaks=0 allow_user_segv_handler=1 " + "external_symbolizer_path=%d/../../third_party/llvm-build/Release+Asserts/" + "bin/llvm-symbolizer"; + +#elif defined(OS_APPLE) +const char* kAsanDefaultOptions = + "check_printf=1 use_sigaltstack=1 strip_path_prefix=/../../ " + "fast_unwind_on_fatal=1 detect_stack_use_after_return=1 "; + +#elif defined(OS_WIN) +const char* kAsanDefaultOptions = + "check_printf=1 use_sigaltstack=1 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 // defined(OS_LINUX) || defined(OS_CHROMEOS) + +#if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_APPLE) || \ + defined(OS_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 // defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_APPLE) || + // defined(OS_WIN) +#endif // ADDRESS_SANITIZER + +#if defined(THREAD_SANITIZER) && (defined(OS_LINUX) || defined(OS_CHROMEOS)) +// Default options for ThreadSanitizer in various configurations: +// detect_deadlocks=1 - enable deadlock (lock inversion) detection. +// 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[] = + "detect_deadlocks=1 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) && (defined(OS_LINUX) || + // defined(OS_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 !defined(OS_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: +// print_suppressions=1 - print the list of matched suppressions. +// 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[] = + "print_suppressions=1 strip_path_prefix=/../../ " + "use_poisoned=1 " + +#if !defined(OS_APPLE) + "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; +} + +extern char kLSanDefaultSuppressions[]; + +SANITIZER_HOOK_ATTRIBUTE const char *__lsan_default_suppressions() { + return kLSanDefaultSuppressions; +} + +#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 !defined(OS_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 |