| // 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(OS_MACOSX) |
| #include <crt_externs.h> // for _NSGetArgc, _NSGetArgv |
| #include <string.h> |
| #endif // ADDRESS_SANITIZER && OS_MACOSX |
| |
| #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: |
| // malloc_context_size=5 - limit the size of stack traces collected by ASan |
| // for each malloc/free by 5 frames. These stack traces tend to accumulate |
| // very fast in applications using JIT (v8 in Chrome's case), see |
| // https://code.google.com/p/address-sanitizer/issues/detail?id=177 |
| // symbolize=1 - enable in-process symbolization. |
| // legacy_pthread_cond=1 - run in the libpthread 2.2.5 compatibility mode to |
| // work around libGL.so using the obsolete API, see |
| // http://crbug.com/341805. This may break if pthread_cond_t objects are |
| // accessed by both instrumented and non-instrumented binaries (e.g. if |
| // they reside in shared memory). This option is going to be deprecated in |
| // upstream AddressSanitizer and must not be used anywhere except the |
| // official builds. |
| // 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. |
| #if defined(OS_LINUX) |
| #if defined(GOOGLE_CHROME_BUILD) |
| // Default AddressSanitizer options for the official build. These do not affect |
| // tests on buildbots (which don't set GOOGLE_CHROME_BUILD) or non-official |
| // Chromium builds. |
| const char kAsanDefaultOptions[] = |
| "legacy_pthread_cond=1 malloc_context_size=5 " |
| "symbolize=1 check_printf=1 use_sigaltstack=1 detect_leaks=0 " |
| "strip_path_prefix=/../../ fast_unwind_on_fatal=1 " |
| "allow_user_segv_handler=1 "; |
| #else |
| // Default AddressSanitizer options for buildbots and non-official builds. |
| const char* kAsanDefaultOptions = |
| "symbolize=1 check_printf=1 use_sigaltstack=1 " |
| "detect_leaks=0 strip_path_prefix=/../../ fast_unwind_on_fatal=1 " |
| "detect_stack_use_after_return=1 " |
| "allow_user_segv_handler=1 "; |
| #endif // GOOGLE_CHROME_BUILD |
| |
| #elif defined(OS_MACOSX) |
| const char *kAsanDefaultOptions = |
| "check_printf=1 use_sigaltstack=1 " |
| "strip_path_prefix=/../../ fast_unwind_on_fatal=1 " |
| "detect_stack_use_after_return=1 detect_odr_violation=0 "; |
| #endif // OS_LINUX |
| |
| #if defined(OS_LINUX) || defined(OS_MACOSX) |
| // 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 // OS_LINUX || OS_MACOSX |
| #endif // ADDRESS_SANITIZER |
| |
| #if defined(THREAD_SANITIZER) && defined(OS_LINUX) |
| // 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. |
| const char kTsanDefaultOptions[] = |
| "detect_deadlocks=1 second_deadlock_stack=1 report_signal_unsafe=0 " |
| "report_thread_leaks=0 print_suppressions=1 history_size=7 " |
| "strict_memcmp=0 strip_path_prefix=/../../ "; |
| |
| SANITIZER_HOOK_ATTRIBUTE const char *__tsan_default_options() { |
| return kTsanDefaultOptions; |
| } |
| |
| extern char kTSanDefaultSuppressions[]; |
| |
| SANITIZER_HOOK_ATTRIBUTE const char *__tsan_default_suppressions() { |
| return kTSanDefaultSuppressions; |
| } |
| |
| #endif // THREAD_SANITIZER && OS_LINUX |
| |
| #if defined(MEMORY_SANITIZER) |
| // Default options for MemorySanitizer: |
| // intercept_memcmp=0 - do not detect uninitialized memory in memcmp() calls. |
| // Pending cleanup, see http://crbug.com/523428 |
| // strip_path_prefix=/../../ - prefixes up to and including this |
| // substring will be stripped from source file paths in symbolized reports. |
| const char kMsanDefaultOptions[] = |
| "intercept_memcmp=0 strip_path_prefix=/../../ "; |
| |
| 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. |
| const char kLsanDefaultOptions[] = |
| "print_suppressions=1 strip_path_prefix=/../../ "; |
| |
| 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=/../../ "; |
| |
| SANITIZER_HOOK_ATTRIBUTE const char* __ubsan_default_options() { |
| return kUbsanDefaultOptions; |
| } |
| |
| #endif // UNDEFINED_SANITIZER |