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citra-qt: Remove disassembler widget 

It has performance problems, a very misleading UI, and is broken in
general. It has essentially been superceded by the GDB stub, but if we
wanted a built-in disassembler in the future it'd essentially need to be
rewritten from scratch anyway.

Closes #427, #1480
This commit is contained in:
Yuri Kunde Schlesner 2017-05-07 14:36:20 -07:00
parent e33558c6ce
commit 47e806b084
6 changed files with 0 additions and 448 deletions
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3
src/citra_qt/CMakeLists.txt
View File

@ -12,7 +12,6 @@ set(SRCS
configuration/configure_input.cpp
configuration/configure_system.cpp
debugger/callstack.cpp
debugger/disassembler.cpp
debugger/graphics/graphics.cpp
debugger/graphics/graphics_breakpoint_observer.cpp
debugger/graphics/graphics_breakpoints.cpp
@ -44,7 +43,6 @@ set(HEADERS
configuration/configure_input.h
configuration/configure_system.h
debugger/callstack.h
debugger/disassembler.h
debugger/graphics/graphics.h
debugger/graphics/graphics_breakpoint_observer.h
debugger/graphics/graphics_breakpoints.h
@ -75,7 +73,6 @@ set(UIS
configuration/configure_input.ui
configuration/configure_system.ui
debugger/callstack.ui
debugger/disassembler.ui
debugger/registers.ui
hotkeys.ui
main.ui

272
src/citra_qt/debugger/disassembler.cpp
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@ -1,272 +0,0 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <QShortcut>
#include "citra_qt/bootmanager.h"
#include "citra_qt/debugger/disassembler.h"
#include "citra_qt/hotkeys.h"
#include "citra_qt/util/util.h"
#include "common/break_points.h"
#include "common/symbols.h"
#include "core/arm/arm_interface.h"
#include "core/arm/disassembler/arm_disasm.h"
#include "core/core.h"
#include "core/memory.h"
DisassemblerModel::DisassemblerModel(QObject* parent)
: QAbstractListModel(parent), base_address(0), code_size(0), program_counter(0),
selection(QModelIndex()) {}
int DisassemblerModel::columnCount(const QModelIndex& parent) const {
return 3;
}
int DisassemblerModel::rowCount(const QModelIndex& parent) const {
return code_size;
}
QVariant DisassemblerModel::data(const QModelIndex& index, int role) const {
switch (role) {
case Qt::DisplayRole: {
u32 address = base_address + index.row() * 4;
u32 instr = Memory::Read32(address);
std::string disassembly = ARM_Disasm::Disassemble(address, instr);
if (index.column() == 0) {
return QString("0x%1").arg((uint)(address), 8, 16, QLatin1Char('0'));
} else if (index.column() == 1) {
return QString::fromStdString(disassembly);
} else if (index.column() == 2) {
if (Symbols::HasSymbol(address)) {
TSymbol symbol = Symbols::GetSymbol(address);
return QString("%1 - Size:%2")
.arg(QString::fromStdString(symbol.name))
.arg(symbol.size / 4); // divide by 4 to get instruction count
} else if (ARM_Disasm::Decode(instr) == OP_BL) {
u32 offset = instr & 0xFFFFFF;
// Sign-extend the 24-bit offset
if ((offset >> 23) & 1)
offset |= 0xFF000000;
// Pre-compute the left-shift and the prefetch offset
offset <<= 2;
offset += 8;
TSymbol symbol = Symbols::GetSymbol(address + offset);
return QString(" --> %1").arg(QString::fromStdString(symbol.name));
}
}
break;
}
case Qt::BackgroundRole: {
unsigned int address = base_address + 4 * index.row();
if (breakpoints.IsAddressBreakPoint(address))
return QBrush(QColor(0xFF, 0xC0, 0xC0));
else if (address == program_counter)
return QBrush(QColor(0xC0, 0xC0, 0xFF));
break;
}
case Qt::FontRole: {
if (index.column() == 0 || index.column() == 1) { // 2 is the symbols column
return GetMonospaceFont();
}
break;
}
default:
break;
}
return QVariant();
}
QModelIndex DisassemblerModel::IndexFromAbsoluteAddress(unsigned int address) const {
return index((address - base_address) / 4, 0);
}
const BreakPoints& DisassemblerModel::GetBreakPoints() const {
return breakpoints;
}
void DisassemblerModel::ParseFromAddress(unsigned int address) {
// NOTE: A too large value causes lagging when scrolling the disassembly
const unsigned int chunk_size = 1000 * 500;
// If we haven't loaded anything yet, initialize base address to the parameter address
if (code_size == 0)
base_address = address;
// If the new area is already loaded, just continue
if (base_address + code_size > address + chunk_size && base_address <= address)
return;
// Insert rows before currently loaded data
if (base_address > address) {
unsigned int num_rows = (address - base_address) / 4;
beginInsertRows(QModelIndex(), 0, num_rows);
code_size += num_rows;
base_address = address;
endInsertRows();
}
// Insert rows after currently loaded data
if (base_address + code_size < address + chunk_size) {
unsigned int num_rows = (base_address + chunk_size - code_size - address) / 4;
beginInsertRows(QModelIndex(), 0, num_rows);
code_size += num_rows;
endInsertRows();
}
SetNextInstruction(address);
}
void DisassemblerModel::OnSelectionChanged(const QModelIndex& new_selection) {
selection = new_selection;
}
void DisassemblerModel::OnSetOrUnsetBreakpoint() {
if (!selection.isValid())
return;
unsigned int address = base_address + selection.row() * 4;
if (breakpoints.IsAddressBreakPoint(address)) {
breakpoints.Remove(address);
} else {
breakpoints.Add(address);
}
emit dataChanged(selection, selection);
}
void DisassemblerModel::SetNextInstruction(unsigned int address) {
QModelIndex cur_index = IndexFromAbsoluteAddress(program_counter);
QModelIndex prev_index = IndexFromAbsoluteAddress(address);
program_counter = address;
emit dataChanged(cur_index, cur_index);
emit dataChanged(prev_index, prev_index);
}
DisassemblerWidget::DisassemblerWidget(QWidget* parent, EmuThread* emu_thread)
: QDockWidget(parent), base_addr(0), emu_thread(emu_thread) {
disasm_ui.setupUi(this);
RegisterHotkey("Disassembler", "Start/Stop", QKeySequence(Qt::Key_F5), Qt::ApplicationShortcut);
RegisterHotkey("Disassembler", "Step", QKeySequence(Qt::Key_F10), Qt::ApplicationShortcut);
RegisterHotkey("Disassembler", "Step into", QKeySequence(Qt::Key_F11), Qt::ApplicationShortcut);
RegisterHotkey("Disassembler", "Set Breakpoint", QKeySequence(Qt::Key_F9),
Qt::ApplicationShortcut);
connect(disasm_ui.button_step, SIGNAL(clicked()), this, SLOT(OnStep()));
connect(disasm_ui.button_pause, SIGNAL(clicked()), this, SLOT(OnPause()));
connect(disasm_ui.button_continue, SIGNAL(clicked()), this, SLOT(OnContinue()));
connect(GetHotkey("Disassembler", "Start/Stop", this), SIGNAL(activated()), this,
SLOT(OnToggleStartStop()));
connect(GetHotkey("Disassembler", "Step", this), SIGNAL(activated()), this, SLOT(OnStep()));
connect(GetHotkey("Disassembler", "Step into", this), SIGNAL(activated()), this,
SLOT(OnStepInto()));
setEnabled(false);
}
void DisassemblerWidget::Init() {
model->ParseFromAddress(Core::CPU().GetPC());
disasm_ui.treeView->resizeColumnToContents(0);
disasm_ui.treeView->resizeColumnToContents(1);
disasm_ui.treeView->resizeColumnToContents(2);
QModelIndex model_index = model->IndexFromAbsoluteAddress(Core::CPU().GetPC());
disasm_ui.treeView->scrollTo(model_index);
disasm_ui.treeView->selectionModel()->setCurrentIndex(
model_index, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
}
void DisassemblerWidget::OnContinue() {
emu_thread->SetRunning(true);
}
void DisassemblerWidget::OnStep() {
OnStepInto(); // change later
}
void DisassemblerWidget::OnStepInto() {
emu_thread->SetRunning(false);
emu_thread->ExecStep();
}
void DisassemblerWidget::OnPause() {
emu_thread->SetRunning(false);
// TODO: By now, the CPU might not have actually stopped...
if (Core::System::GetInstance().IsPoweredOn()) {
model->SetNextInstruction(Core::CPU().GetPC());
}
}
void DisassemblerWidget::OnToggleStartStop() {
emu_thread->SetRunning(!emu_thread->IsRunning());
}
void DisassemblerWidget::OnDebugModeEntered() {
u32 next_instr = Core::CPU().GetPC();
if (model->GetBreakPoints().IsAddressBreakPoint(next_instr))
emu_thread->SetRunning(false);
model->SetNextInstruction(next_instr);
QModelIndex model_index = model->IndexFromAbsoluteAddress(next_instr);
disasm_ui.treeView->scrollTo(model_index);
disasm_ui.treeView->selectionModel()->setCurrentIndex(
model_index, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
}
void DisassemblerWidget::OnDebugModeLeft() {}
int DisassemblerWidget::SelectedRow() {
QModelIndex index = disasm_ui.treeView->selectionModel()->currentIndex();
if (!index.isValid())
return -1;
return disasm_ui.treeView->selectionModel()->currentIndex().row();
}
void DisassemblerWidget::OnEmulationStarting(EmuThread* emu_thread) {
this->emu_thread = emu_thread;
model = new DisassemblerModel(this);
disasm_ui.treeView->setModel(model);
connect(disasm_ui.treeView->selectionModel(),
SIGNAL(currentChanged(const QModelIndex&, const QModelIndex&)), model,
SLOT(OnSelectionChanged(const QModelIndex&)));
connect(disasm_ui.button_breakpoint, SIGNAL(clicked()), model, SLOT(OnSetOrUnsetBreakpoint()));
connect(GetHotkey("Disassembler", "Set Breakpoint", this), SIGNAL(activated()), model,
SLOT(OnSetOrUnsetBreakpoint()));
Init();
setEnabled(true);
}
void DisassemblerWidget::OnEmulationStopping() {
disasm_ui.treeView->setModel(nullptr);
delete model;
emu_thread = nullptr;
setEnabled(false);
}

76
src/citra_qt/debugger/disassembler.h
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@ -1,76 +0,0 @@
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <QAbstractListModel>
#include <QDockWidget>
#include "common/break_points.h"
#include "common/common_types.h"
#include "ui_disassembler.h"
class QAction;
class EmuThread;
class DisassemblerModel : public QAbstractListModel {
Q_OBJECT
public:
explicit DisassemblerModel(QObject* parent);
int columnCount(const QModelIndex& parent = QModelIndex()) const override;
int rowCount(const QModelIndex& parent = QModelIndex()) const override;
QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
QModelIndex IndexFromAbsoluteAddress(unsigned int address) const;
const BreakPoints& GetBreakPoints() const;
public slots:
void ParseFromAddress(unsigned int address);
void OnSelectionChanged(const QModelIndex&);
void OnSetOrUnsetBreakpoint();
void SetNextInstruction(unsigned int address);
private:
unsigned int base_address;
unsigned int code_size;
unsigned int program_counter;
QModelIndex selection;
BreakPoints breakpoints;
};
class DisassemblerWidget : public QDockWidget {
Q_OBJECT
public:
DisassemblerWidget(QWidget* parent, EmuThread* emu_thread);
void Init();
public slots:
void OnContinue();
void OnStep();
void OnStepInto();
void OnPause();
void OnToggleStartStop();
void OnDebugModeEntered();
void OnDebugModeLeft();
void OnEmulationStarting(EmuThread* emu_thread);
void OnEmulationStopping();
private:
// returns -1 if no row is selected
int SelectedRow();
Ui::DockWidget disasm_ui;
DisassemblerModel* model;
u32 base_addr;
EmuThread* emu_thread;
};

81
src/citra_qt/debugger/disassembler.ui
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@ -1,81 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>DockWidget</class>
<widget class="QDockWidget" name="DockWidget">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>430</width>
<height>401</height>
</rect>
</property>
<property name="windowTitle">
<string>Disassembly</string>
</property>
<widget class="QWidget" name="dockWidgetContents">
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="QPushButton" name="button_step">
<property name="text">
<string>Step</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="button_pause">
<property name="text">
<string>Pause</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="button_continue">
<property name="text">
<string>Continue</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton">
<property name="text">
<string>Step Into</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="button_breakpoint">
<property name="text">
<string>Set Breakpoint</string>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="QTreeView" name="treeView">
<property name="alternatingRowColors">
<bool>true</bool>
</property>
<property name="indentation">
<number>20</number>
</property>
<property name="rootIsDecorated">
<bool>false</bool>
</property>
<property name="uniformRowHeights">
<bool>true</bool>
</property>
<attribute name="headerVisible">
<bool>false</bool>
</attribute>
</widget>
</item>
</layout>
</widget>
</widget>
<resources/>
<connections/>
</ui>

14
src/citra_qt/main.cpp
View File

@ -17,7 +17,6 @@
#include "citra_qt/configuration/config.h"
#include "citra_qt/configuration/configure_dialog.h"
#include "citra_qt/debugger/callstack.h"
#include "citra_qt/debugger/disassembler.h"
#include "citra_qt/debugger/graphics/graphics.h"
#include "citra_qt/debugger/graphics/graphics_breakpoints.h"
#include "citra_qt/debugger/graphics/graphics_cmdlists.h"
@ -130,15 +129,6 @@ void GMainWindow::InitializeDebugWidgets() {
debug_menu->addAction(microProfileDialog->toggleViewAction());
#endif
disasmWidget = new DisassemblerWidget(this, emu_thread.get());
addDockWidget(Qt::BottomDockWidgetArea, disasmWidget);
disasmWidget->hide();
debug_menu->addAction(disasmWidget->toggleViewAction());
connect(this, &GMainWindow::EmulationStarting, disasmWidget,
&DisassemblerWidget::OnEmulationStarting);
connect(this, &GMainWindow::EmulationStopping, disasmWidget,
&DisassemblerWidget::OnEmulationStopping);
registersWidget = new RegistersWidget(this);
addDockWidget(Qt::RightDockWidgetArea, registersWidget);
registersWidget->hide();
@ -391,16 +381,12 @@ void GMainWindow::BootGame(const QString& filename) {
connect(render_window, SIGNAL(Closed()), this, SLOT(OnStopGame()));
// BlockingQueuedConnection is important here, it makes sure we've finished refreshing our views
// before the CPU continues
connect(emu_thread.get(), SIGNAL(DebugModeEntered()), disasmWidget, SLOT(OnDebugModeEntered()),
Qt::BlockingQueuedConnection);
connect(emu_thread.get(), SIGNAL(DebugModeEntered()), registersWidget,
SLOT(OnDebugModeEntered()), Qt::BlockingQueuedConnection);
connect(emu_thread.get(), SIGNAL(DebugModeEntered()), callstackWidget,
SLOT(OnDebugModeEntered()), Qt::BlockingQueuedConnection);
connect(emu_thread.get(), SIGNAL(DebugModeEntered()), waitTreeWidget,
SLOT(OnDebugModeEntered()), Qt::BlockingQueuedConnection);
connect(emu_thread.get(), SIGNAL(DebugModeLeft()), disasmWidget, SLOT(OnDebugModeLeft()),
Qt::BlockingQueuedConnection);
connect(emu_thread.get(), SIGNAL(DebugModeLeft()), registersWidget, SLOT(OnDebugModeLeft()),
Qt::BlockingQueuedConnection);
connect(emu_thread.get(), SIGNAL(DebugModeLeft()), callstackWidget, SLOT(OnDebugModeLeft()),

2
src/citra_qt/main.h
View File

@ -12,7 +12,6 @@
class CallstackWidget;
class Config;
class DisassemblerWidget;
class EmuThread;
class GameList;
class GImageInfo;
@ -152,7 +151,6 @@ private:
// Debugger panes
ProfilerWidget* profilerWidget;
MicroProfileDialog* microProfileDialog;
DisassemblerWidget* disasmWidget;
RegistersWidget* registersWidget;
CallstackWidget* callstackWidget;
GPUCommandStreamWidget* graphicsWidget;