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ce726fe027
We now decrement the return address of the previous frame by one to get the address of the call instruction and use this address in the backtrace. This results in more accurate source position information than what we previously had when using the return address.
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Vector.h>
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#include <LibDebug/ProcessInspector.h>
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#include <LibGUI/ListView.h>
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#include <LibGUI/Model.h>
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#include <sys/arch/i386/regs.h>
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namespace Debug {
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class DebugSession;
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}
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namespace HackStudio {
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class BacktraceModel final : public GUI::Model {
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public:
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static NonnullRefPtr<BacktraceModel> create(Debug::ProcessInspector const&, PtraceRegisters const& regs);
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virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return m_frames.size(); }
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virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return 1; }
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virtual String column_name(int) const override
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{
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return "";
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}
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virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
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virtual GUI::ModelIndex index(int row, int column, const GUI::ModelIndex&) const override;
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struct FrameInfo {
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String function_name;
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FlatPtr instruction_address { 0 };
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FlatPtr frame_base { 0 };
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Optional<Debug::DebugInfo::SourcePosition> m_source_position;
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};
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const Vector<FrameInfo>& frames() const { return m_frames; }
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private:
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explicit BacktraceModel(Vector<FrameInfo>&& frames)
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: m_frames(move(frames))
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{
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}
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static Vector<FrameInfo> create_backtrace(Debug::ProcessInspector const&, PtraceRegisters const&);
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Vector<FrameInfo> m_frames;
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};
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}
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