Ryan Macnak
894a5fa7d5
The suspended thread might hold a TSAN-internal lock to a location that will be read by the sampling thread, which would cause a dead lock. TEST=tsan Bug: https://github.com/dart-lang/sdk/issues/62332 Change-Id: I0ac6a05c25067749b52ed83b14f80ab1850013a3 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/471321 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_PLATFORM_THREAD_SANITIZER_H_
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#define RUNTIME_PLATFORM_THREAD_SANITIZER_H_
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#include "platform/allocation.h"
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#include "platform/globals.h"
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#if __SANITIZE_THREAD__
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#define USING_THREAD_SANITIZER
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#elif defined(__has_feature)
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#if __has_feature(thread_sanitizer)
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#define USING_THREAD_SANITIZER
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#endif
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#endif
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#if defined(USING_THREAD_SANITIZER)
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#define NO_SANITIZE_THREAD __attribute__((no_sanitize_thread))
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#if defined(__clang__)
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#define DISABLE_SANITIZER_INSTRUMENTATION \
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__attribute__((disable_sanitizer_instrumentation))
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#else
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#define DISABLE_SANITIZER_INSTRUMENTATION
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#endif
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extern "C" uint32_t __tsan_atomic32_load(uint32_t* addr, int order);
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extern "C" void __tsan_atomic32_store(uint32_t* addr,
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uint32_t value,
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int order);
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extern "C" uint64_t __tsan_atomic64_load(uint64_t* addr, int order);
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extern "C" void __tsan_atomic64_store(uint64_t* addr,
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uint64_t value,
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int order);
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extern "C" void __tsan_read1(void* addr);
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extern "C" void __tsan_read2(void* addr);
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extern "C" void __tsan_read4(void* addr);
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extern "C" void __tsan_read8(void* addr);
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extern "C" void __tsan_read16(void* addr);
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extern "C" void __tsan_write1(void* addr);
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extern "C" void __tsan_write2(void* addr);
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extern "C" void __tsan_write4(void* addr);
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extern "C" void __tsan_write8(void* addr);
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extern "C" void __tsan_write16(void* addr);
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extern "C" void __tsan_read1_pc(void* addr, void* pc);
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extern "C" void __tsan_read2_pc(void* addr, void* pc);
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extern "C" void __tsan_read4_pc(void* addr, void* pc);
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extern "C" void __tsan_read8_pc(void* addr, void* pc);
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extern "C" void __tsan_read16_pc(void* addr, void* pc);
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extern "C" void __tsan_write1_pc(void* addr, void* pc);
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extern "C" void __tsan_write2_pc(void* addr, void* pc);
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extern "C" void __tsan_write4_pc(void* addr, void* pc);
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extern "C" void __tsan_write8_pc(void* addr, void* pc);
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extern "C" void __tsan_write16_pc(void* addr, void* pc);
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extern "C" void __tsan_func_entry(void* pc);
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extern "C" void __tsan_func_exit();
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extern "C" void __tsan_ignore_thread_begin();
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extern "C" void __tsan_ignore_thread_end();
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constexpr uintptr_t kExternalPCBit = 1ULL << 60;
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#else
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#define NO_SANITIZE_THREAD
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#define DISABLE_SANITIZER_INSTRUMENTATION
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#endif
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#if defined(USING_THREAD_SANITIZER)
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#define DO_IF_TSAN(CODE) CODE
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#else
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#define DO_IF_TSAN(CODE)
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#endif
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#if defined(USING_THREAD_SANITIZER)
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#define DO_IF_NOT_TSAN(CODE)
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#else
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#define DO_IF_NOT_TSAN(CODE) CODE
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#endif
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namespace dart {
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class TsanIgnoreScope : public ValueObject {
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public:
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TsanIgnoreScope() {
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#if defined(USING_THREAD_SANITIZER)
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__tsan_ignore_thread_begin();
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#endif
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}
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~TsanIgnoreScope() {
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#if defined(USING_THREAD_SANITIZER)
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__tsan_ignore_thread_end();
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#endif
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}
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};
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} // namespace dart
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#endif // RUNTIME_PLATFORM_THREAD_SANITIZER_H_
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