52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
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// Copyright 2019 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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#ifndef BASE_PROFILER_CHROME_UNWINDER_ANDROID_H_
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#define BASE_PROFILER_CHROME_UNWINDER_ANDROID_H_
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#include "base/profiler/unwinder.h"
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#include "base/base_export.h"
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#include "base/optional.h"
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#include "base/profiler/arm_cfi_table.h"
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#include "base/profiler/module_cache.h"
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#include "base/profiler/register_context.h"
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namespace base {
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// Chrome unwinder implementation for Android, using ArmCfiTable.
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class BASE_EXPORT ChromeUnwinderAndroid : public Unwinder {
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public:
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ChromeUnwinderAndroid(const ArmCFITable* cfi_table,
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const ModuleCache::Module* chrome_module);
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~ChromeUnwinderAndroid() override;
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ChromeUnwinderAndroid(const ChromeUnwinderAndroid&) = delete;
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ChromeUnwinderAndroid& operator=(const ChromeUnwinderAndroid&) = delete;
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// Unwinder:
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bool CanUnwindFrom(const Frame& current_frame) const override;
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UnwindResult TryUnwind(RegisterContext* thread_context,
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uintptr_t stack_top,
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ModuleCache* module_cache,
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std::vector<Frame>* stack) const override;
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static bool StepForTesting(RegisterContext* thread_context,
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uintptr_t stack_top,
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const ArmCFITable::FrameEntry& entry) {
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return Step(thread_context, stack_top, entry);
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}
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private:
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static bool Step(RegisterContext* thread_context,
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uintptr_t stack_top,
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const ArmCFITable::FrameEntry& entry);
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const ArmCFITable* cfi_table_;
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const ModuleCache::Module* const chrome_module_;
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};
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} // namespace base
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#endif // BASE_PROFILER_CHROME_UNWINDER_ANDROID_H_
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