ladybird/DevTools/HackStudio/Debugger/DebugInfoWidget.cpp

70 lines
3 KiB
C++

/*
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "DebugInfoWidget.h"
#include "BacktraceModel.h"
#include "Debugger.h"
#include "VariablesModel.h"
#include <AK/StringBuilder.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/ListView.h>
#include <LibGUI/Model.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/TreeView.h>
DebugInfoWidget::DebugInfoWidget()
{
set_layout<GUI::HorizontalBoxLayout>();
auto& splitter = add<GUI::HorizontalSplitter>();
m_backtrace_view = splitter.add<GUI::ListView>();
m_variables_view = splitter.add<GUI::TreeView>();
}
void DebugInfoWidget::update_state(const DebugSession& debug_session, const PtraceRegisters& regs)
{
m_variables_view->set_model(VariablesModel::create(regs));
m_backtrace_view->set_model(BacktraceModel::create(debug_session, regs));
m_backtrace_view->selection().set(m_backtrace_view->model()->index(0));
m_backtrace_view->on_selection
= [this](auto& index) {
auto& model = static_cast<BacktraceModel&>(*m_backtrace_view->model());
// Note: The recontruction of the register set here is obviously incomplete.
// We currently only reconstruct eip & ebp. Ideally would also reconstruct the other registers somehow.
// (Other registers may be needed to get the values of variables who are not stored on the stack)
PtraceRegisters frame_regs {};
frame_regs.eip = model.frames()[index.row()].instruction_address;
frame_regs.ebp = model.frames()[index.row()].frame_base;
m_variables_view->set_model(VariablesModel::create(frame_regs));
};
}
void DebugInfoWidget::program_stopped()
{
m_variables_view->set_model({});
}