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7eac9fe10e
We can now step into library code in the debugger. Since we now need the whole source code of our libraries (and not just the headers), we clone the whole serenity git repo into /usr/share/serenity.
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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name = "<missing>";
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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 && current_instruction);
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return frames;
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}
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