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106 lines
4.4 KiB
C++
106 lines
4.4 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 "DebugInfoWidget.h"
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#include "BacktraceModel.h"
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#include "Debugger.h"
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#include "VariablesModel.h"
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#include <AK/StringBuilder.h>
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#include <LibGUI/Action.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/InputBox.h>
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#include <LibGUI/ListView.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/Model.h>
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#include <LibGUI/Splitter.h>
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#include <LibGUI/TreeView.h>
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DebugInfoWidget::DebugInfoWidget()
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{
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set_layout<GUI::HorizontalBoxLayout>();
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auto& splitter = add<GUI::HorizontalSplitter>();
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m_backtrace_view = splitter.add<GUI::ListView>();
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m_variables_view = splitter.add<GUI::TreeView>();
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m_backtrace_view->on_selection = [this](auto& index) {
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auto& model = static_cast<BacktraceModel&>(*m_backtrace_view->model());
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// Note: The reconstruction of the register set here is obviously incomplete.
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// We currently only reconstruct eip & ebp. Ideally would also reconstruct the other registers somehow.
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// (Other registers may be needed to get the values of variables who are not stored on the stack)
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PtraceRegisters frame_regs {};
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frame_regs.eip = model.frames()[index.row()].instruction_address;
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frame_regs.ebp = model.frames()[index.row()].frame_base;
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m_variables_view->set_model(VariablesModel::create(frame_regs));
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};
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auto edit_variable_action = GUI::Action::create("Change value", [&](auto&) {
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m_variables_view->on_activation(m_variables_view->selection().first());
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});
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m_variable_context_menu = GUI::Menu::construct();
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m_variable_context_menu->add_action(edit_variable_action);
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auto is_valid_index = [](auto& index) {
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if (!index.is_valid())
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return false;
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auto* variable = static_cast<const DebugInfo::VariableInfo*>(index.internal_data());
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if (variable->location_type != DebugInfo::VariableInfo::LocationType::Address)
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return false;
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return variable->is_enum_type() || variable->type_name.is_one_of("int", "bool");
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};
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m_variables_view->on_context_menu_request = [this, is_valid_index](auto& index, auto& event) {
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if (!is_valid_index(index))
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return;
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m_variable_context_menu->popup(event.screen_position());
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};
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m_variables_view->on_activation = [this, is_valid_index](auto& index) {
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if (!is_valid_index(index))
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return;
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auto input = GUI::InputBox::construct("Enter new value:", "Set variable value", window());
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if (input->exec() == GUI::InputBox::ExecOK) {
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auto& model = static_cast<VariablesModel&>(*m_variables_view->model());
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model.set_variable_value(index, input->text_value(), window());
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}
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};
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}
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void DebugInfoWidget::update_state(const DebugSession& debug_session, const PtraceRegisters& regs)
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{
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m_variables_view->set_model(VariablesModel::create(regs));
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m_backtrace_view->set_model(BacktraceModel::create(debug_session, regs));
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m_backtrace_view->selection().set(m_backtrace_view->model()->index(0));
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}
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void DebugInfoWidget::program_stopped()
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{
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m_variables_view->set_model({});
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}
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