| // Copyright (c) 2025, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "platform/thread_sanitizer.h" |
| |
| #if defined(USING_THREAD_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 Dart binaries. 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)) \ |
| __attribute__((no_sanitize_memory)) __attribute__((no_sanitize_thread)) \ |
| __attribute__((visibility("default"))) __attribute__((used)) |
| #endif |
| |
| #if defined(USING_THREAD_SANITIZER) && defined(DART_HOST_OS_LINUX) |
| SANITIZER_HOOK_ATTRIBUTE const char* __tsan_default_suppressions() { |
| // See https://github.com/google/sanitizers/wiki/threadsanitizersuppressions |
| return R"( |
| # False positive in libc's tzset_internal (see http://dartbug.com/54064). |
| # In some environments tzset_internal is not symbolized correctly so we |
| # also suppress the closest caller which is properly symbolized. |
| race:tzset_internal |
| race:dart::LocalTime |
| )"; |
| } |
| #endif // defined(USING_THREAD_SANITIZER) && defined(DART_HOST_OS_LINUX) |
