1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#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/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::try_load_from_file("/res/icons/16x16/debug-continue.png").release_value_but_fixme_should_propagate_errors(), [](auto&) {
Debugger::the().set_requested_debugger_action(Debugger::DebuggerAction::Continue);
});
m_singlestep_action = GUI::Action::create("Step Over", { Mod_None, Key_F10 }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/debug-step-over.png").release_value_but_fixme_should_propagate_errors(), [](auto&) {
Debugger::the().set_requested_debugger_action(Debugger::DebuggerAction::SourceStepOver);
});
m_step_in_action = GUI::Action::create("Step In", { Mod_None, Key_F11 }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/debug-step-in.png").release_value_but_fixme_should_propagate_errors(), [](auto&) {
Debugger::the().set_requested_debugger_action(Debugger::DebuggerAction::SourceSingleStep);
});
m_step_out_action = GUI::Action::create("Step Out", { Mod_Shift, Key_F11 }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/debug-step-out.png").release_value_but_fixme_should_propagate_errors(), [](auto&) {
Debugger::the().set_requested_debugger_action(Debugger::DebuggerAction::SourceStepOut);
});
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_change = [this] {
const auto& index = m_backtrace_view->selection().first();
if (!index.is_valid()) {
return;
}
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 {};
auto backtrace_frame = model.frames()[index.row()];
frame_regs.set_ip(backtrace_frame.instruction_address);
frame_regs.set_bp(backtrace_frame.frame_base);
m_variables_view->set_model(VariablesModel::create(static_cast<VariablesModel&>(*m_variables_view->model()).inspector(), frame_regs));
if (on_backtrace_frame_selection && backtrace_frame.m_source_position.has_value()) {
on_backtrace_frame_selection(*backtrace_frame.m_source_position);
} else {
dbgln("no source position info");
}
};
}
bool DebugInfoWidget::does_variable_support_writing(const Debug::DebugInfo::VariableInfo* variable)
{
if (variable->location_type != Debug::DebugInfo::VariableInfo::LocationType::Address)
return false;
return variable->is_enum_type() || variable->type_name.is_one_of("int", "bool");
}
RefPtr<GUI::Menu> DebugInfoWidget::get_context_menu_for_variable(const GUI::ModelIndex& index)
{
if (!index.is_valid())
return nullptr;
auto context_menu = GUI::Menu::construct();
auto* variable = static_cast<const Debug::DebugInfo::VariableInfo*>(index.internal_data());
if (does_variable_support_writing(variable)) {
context_menu->add_action(GUI::Action::create("Change value", [&](auto&) {
String value;
if (GUI::InputBox::show(window(), value, "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 variable_address = variable->location_data.address;
if (Debugger::the().session()->watchpoint_exists(variable_address)) {
context_menu->add_action(GUI::Action::create("Remove watchpoint", [variable_address](auto&) {
Debugger::the().session()->remove_watchpoint(variable_address);
}));
} else {
auto& backtrace_model = static_cast<BacktraceModel&>(*m_backtrace_view->model());
auto current_frame = m_backtrace_view->selection().first().row();
auto ebp = backtrace_model.frames()[current_frame].frame_base;
context_menu->add_action(GUI::Action::create("Add watchpoint", [variable_address, ebp](auto&) {
Debugger::the().session()->insert_watchpoint(variable_address, ebp);
}));
}
return context_menu;
}
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>();
m_variables_view->on_context_menu_request = [this](auto& index, auto& event) {
m_variable_context_menu = get_context_menu_for_variable(index);
if (m_variable_context_menu)
m_variable_context_menu->popup(event.screen_position());
};
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(Debug::ProcessInspector& inspector, const PtraceRegisters& regs)
{
m_variables_view->set_model(VariablesModel::create(inspector, regs));
m_backtrace_view->set_model(BacktraceModel::create(inspector, regs));
if (m_registers_view->model()) {
auto& previous_registers = static_cast<RegistersModel*>(m_registers_view->model())->raw_registers();
m_registers_view->set_model(RegistersModel::create(regs, previous_registers));
} else {
m_registers_view->set_model(RegistersModel::create(regs));
}
auto selected_index = m_backtrace_view->model()->index(0);
if (!selected_index.is_valid()) {
dbgln("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);
}
}
|
