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45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
// Copyright 2021 The Chromium Authors
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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_FRAME_POINTER_UNWINDER_H_
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#define BASE_PROFILER_FRAME_POINTER_UNWINDER_H_
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#include <vector>
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#include "base/base_export.h"
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#include "base/profiler/unwinder.h"
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#include "build/build_config.h"
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#if BUILDFLAG(IS_APPLE)
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#include <os/availability.h>
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#endif
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namespace base {
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// Native unwinder implementation for platforms that have frame pointers:
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// * iOS, ARM64 and X86_64,
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// * macOS 10.14+.
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// * ChromeOS X86_64
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class BASE_EXPORT
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#if BUILDFLAG(IS_APPLE)
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API_AVAILABLE(ios(12))
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#endif
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FramePointerUnwinder : public Unwinder {
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public:
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FramePointerUnwinder();
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FramePointerUnwinder(const FramePointerUnwinder&) = delete;
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FramePointerUnwinder& operator=(const FramePointerUnwinder&) = 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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std::vector<Frame>* stack) override;
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};
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} // namespace base
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#endif // BASE_PROFILER_FRAME_POINTER_UNWINDER_H_
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