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68 lines
2.9 KiB
C++
68 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "BacktraceModel.h"
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#include "Debugger.h"
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NonnullRefPtr<BacktraceModel> BacktraceModel::create(const DebugSession& debug_session, const PtraceRegisters& regs)
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{
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return adopt(*new BacktraceModel(create_backtrace(debug_session, regs)));
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}
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GUI::Variant BacktraceModel::data(const GUI::ModelIndex& index, Role role) const
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{
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if (role == Role::Display) {
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auto& frame = m_frames.at(index.row());
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return frame.function_name;
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}
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return {};
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}
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GUI::ModelIndex BacktraceModel::index(int row, int column, const GUI::ModelIndex&) const
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{
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if (row < 0 || row >= static_cast<int>(m_frames.size()))
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return {};
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return create_index(row, column, &m_frames.at(row));
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}
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Vector<BacktraceModel::FrameInfo> BacktraceModel::create_backtrace(const DebugSession& debug_session, const PtraceRegisters& regs)
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{
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u32 current_ebp = regs.ebp;
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u32 current_instruction = regs.eip;
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Vector<BacktraceModel::FrameInfo> frames;
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do {
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String name = debug_session.debug_info().name_of_containing_function(current_instruction);
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if (name.is_null()) {
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dbg() << "BacktraceModel: couldn't find containing function for address: " << (void*)current_instruction;
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break;
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}
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frames.append({ name, current_instruction, current_ebp });
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current_instruction = Debugger::the().session()->peek(reinterpret_cast<u32*>(current_ebp + 4)).value();
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current_ebp = Debugger::the().session()->peek(reinterpret_cast<u32*>(current_ebp)).value();
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} while (current_ebp);
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return frames;
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}
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