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/*
* 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 "RegistersModel.h"
#include "VariablesModel.h"
#include <AK/StringBuilder.h>
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/InputBox.h>
#include <LibGUI/Layout.h>
#include <LibGUI/ListView.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Model.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/TabWidget.h>
#include <LibGUI/TreeView.h>
namespace HackStudio {
void DebugInfoWidget::init_toolbar()
{
m_continue_action = GUI::Action::create("Continue", Gfx::Bitmap::load_from_file("/res/icons/16x16/debug-continue.png"), [&](auto&) {
pthread_mutex_lock(Debugger::the().continue_mutex());
Debugger::the().set_continue_type(Debugger::ContinueType::Continue);
pthread_cond_signal(Debugger::the().continue_cond());
pthread_mutex_unlock(Debugger::the().continue_mutex());
});
m_singlestep_action = GUI::Action::create("Step Over", Gfx::Bitmap::load_from_file("/res/icons/16x16/debug-step-over.png"), [&](auto&) {
pthread_mutex_lock(Debugger::the().continue_mutex());
Debugger::the().set_continue_type(Debugger::ContinueType::SourceStepOver);
pthread_cond_signal(Debugger::the().continue_cond());
pthread_mutex_unlock(Debugger::the().continue_mutex());
});
m_step_in_action = GUI::Action::create("Step In", Gfx::Bitmap::load_from_file("/res/icons/16x16/debug-step-in.png"), [&](auto&) {
pthread_mutex_lock(Debugger::the().continue_mutex());
Debugger::the().set_continue_type(Debugger::ContinueType::SourceSingleStep);
pthread_cond_signal(Debugger::the().continue_cond());
pthread_mutex_unlock(Debugger::the().continue_mutex());
});
m_step_out_action = GUI::Action::create("Step Out", Gfx::Bitmap::load_from_file("/res/icons/16x16/debug-step-out.png"), [&](auto&) {
pthread_mutex_lock(Debugger::the().continue_mutex());
Debugger::the().set_continue_type(Debugger::ContinueType::SourceStepOut);
pthread_cond_signal(Debugger::the().continue_cond());
pthread_mutex_unlock(Debugger::the().continue_mutex());
});
m_toolbar->add_action(*m_continue_action);
m_toolbar->add_action(*m_singlestep_action);
m_toolbar->add_action(*m_step_in_action);
m_toolbar->add_action(*m_step_out_action);
set_debug_actions_enabled(false);
}
DebugInfoWidget::DebugInfoWidget()
{
set_layout<GUI::VerticalBoxLayout>();
auto& toolbar_container = add<GUI::ToolBarContainer>();
m_toolbar = toolbar_container.add<GUI::ToolBar>();
init_toolbar();
auto& bottom_box = add<GUI::Widget>();
bottom_box.set_layout<GUI::HorizontalBoxLayout>();
auto& splitter = bottom_box.add<GUI::HorizontalSplitter>();
m_backtrace_view = splitter.add<GUI::ListView>();
auto& variables_tab_widget = splitter.add<GUI::TabWidget>();
variables_tab_widget.set_tab_position(GUI::TabWidget::TabPosition::Bottom);
variables_tab_widget.add_widget("Variables", build_variables_tab());
variables_tab_widget.add_widget("Registers", build_registers_tab());
m_backtrace_view->on_selection = [this](auto& index) {
auto& model = static_cast<BacktraceModel&>(*m_backtrace_view->model());
// Note: The reconstruction 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));
};
}
NonnullRefPtr<GUI::Widget> DebugInfoWidget::build_variables_tab()
{
auto variables_widget = GUI::Widget::construct();
variables_widget->set_layout<GUI::HorizontalBoxLayout>();
m_variables_view = variables_widget->add<GUI::TreeView>();
auto is_valid_index = [](auto& index) {
if (!index.is_valid())
return false;
auto* variable = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
if (variable->location_type != Debug::DebugInfo::VariableInfo::LocationType::Address)
return false;
return variable->is_enum_type() || variable->type_name.is_one_of("int", "bool");
};
m_variables_view->on_context_menu_request = [this, is_valid_index](auto& index, auto& event) {
if (!is_valid_index(index))
return;
m_variable_context_menu->popup(event.screen_position());
};
m_variables_view->on_activation = [this, is_valid_index](auto& index) {
if (!is_valid_index(index))
return;
String value;
if (GUI::InputBox::show(value, window(), "Enter new value:", "Set variable value") == GUI::InputBox::ExecOK) {
auto& model = static_cast<VariablesModel&>(*m_variables_view->model());
model.set_variable_value(index, value, window());
}
};
auto edit_variable_action = GUI::Action::create("Change value", [&](auto&) {
m_variables_view->on_activation(m_variables_view->selection().first());
});
m_variable_context_menu = GUI::Menu::construct();
m_variable_context_menu->add_action(edit_variable_action);
return variables_widget;
}
NonnullRefPtr<GUI::Widget> DebugInfoWidget::build_registers_tab()
{
auto registers_widget = GUI::Widget::construct();
registers_widget->set_layout<GUI::HorizontalBoxLayout>();
m_registers_view = registers_widget->add<GUI::TableView>();
return registers_widget;
}
void DebugInfoWidget::update_state(const Debug::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_registers_view->set_model(RegistersModel::create(regs));
auto selected_index = m_backtrace_view->model()->index(0);
if (!selected_index.is_valid()) {
dbg() << "Warning: DebugInfoWidget: backtrace selected index is invalid";
return;
}
m_backtrace_view->selection().set(selected_index);
}
void DebugInfoWidget::program_stopped()
{
m_variables_view->set_model({});
m_backtrace_view->set_model({});
m_registers_view->set_model({});
}
void DebugInfoWidget::set_debug_actions_enabled(bool enabled)
{
m_continue_action->set_enabled(enabled);
m_singlestep_action->set_enabled(enabled);
m_step_in_action->set_enabled(enabled);
m_step_out_action->set_enabled(enabled);
}
}
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