/* PCSX2 - PS2 Emulator for PCs * Copyright (C) 2002-2022 PCSX2 Dev Team * * PCSX2 is free software: you can redistribute it and/or modify it under the terms * of the GNU Lesser General Public License as published by the Free Software Found- * ation, either version 3 of the License, or (at your option) any later version. * * PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with PCSX2. * If not, see . */ #include "PrecompiledHeader.h" #include "CpuWidget.h" #include "DisassemblyWidget.h" #include "BreakpointDialog.h" #include "Models/BreakpointModel.h" #include "Models/ThreadModel.h" #include "DebugTools/DebugInterface.h" #include "DebugTools/Breakpoints.h" #include "DebugTools/BiosDebugData.h" #include "DebugTools/MipsStackWalk.h" #include "common/BitCast.h" #include "QtUtils.h" #include #include #include #include #include "demangler/demangler.h" using namespace QtUtils; using namespace MipsStackWalk; CpuWidget::CpuWidget(QWidget* parent, DebugInterface& cpu) : m_cpu(cpu) , m_bpModel(cpu) , m_threadModel(cpu) , m_stackModel(cpu) { m_ui.setupUi(this); connect(g_emu_thread, &EmuThread::onVMPaused, this, &CpuWidget::onVMPaused); connect(m_ui.registerWidget, &RegisterWidget::gotoInDisasm, m_ui.disassemblyWidget, &DisassemblyWidget::gotoAddress); connect(m_ui.memoryviewWidget, &MemoryViewWidget::gotoInDisasm, m_ui.disassemblyWidget, &DisassemblyWidget::gotoAddress); connect(m_ui.registerWidget, &RegisterWidget::gotoInMemory, m_ui.memoryviewWidget, &MemoryViewWidget::gotoAddress); connect(m_ui.disassemblyWidget, &DisassemblyWidget::gotoInMemory, m_ui.memoryviewWidget, &MemoryViewWidget::gotoAddress); connect(m_ui.memoryviewWidget, &MemoryViewWidget::VMUpdate, this, &CpuWidget::reloadCPUWidgets); connect(m_ui.registerWidget, &RegisterWidget::VMUpdate, this, &CpuWidget::reloadCPUWidgets); connect(m_ui.disassemblyWidget, &DisassemblyWidget::VMUpdate, this, &CpuWidget::reloadCPUWidgets); connect(m_ui.breakpointList, &QTableView::customContextMenuRequested, this, &CpuWidget::onBPListContextMenu); connect(m_ui.breakpointList, &QTableView::doubleClicked, this, &CpuWidget::onBPListDoubleClicked); m_ui.breakpointList->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); m_ui.breakpointList->setModel(&m_bpModel); connect(m_ui.threadList, &QTableView::customContextMenuRequested, this, &CpuWidget::onThreadListContextMenu); connect(m_ui.threadList, &QTableView::doubleClicked, this, &CpuWidget::onThreadListDoubleClick); m_ui.threadList->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); m_ui.threadList->setModel(&m_threadModel); connect(m_ui.stackList, &QTableView::customContextMenuRequested, this, &CpuWidget::onStackListContextMenu); connect(m_ui.stackList, &QTableView::doubleClicked, this, &CpuWidget::onStackListDoubleClick); m_ui.stackList->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch); m_ui.stackList->setModel(&m_stackModel); connect(m_ui.tabWidgetRegFunc, &QTabWidget::currentChanged, [this](int i) {if(i == 1){updateFunctionList(true);} }); connect(m_ui.listFunctions, &QListWidget::customContextMenuRequested, this, &CpuWidget::onFuncListContextMenu); connect(m_ui.listFunctions, &QListWidget::itemDoubleClicked, this, &CpuWidget::onFuncListDoubleClick); connect(m_ui.btnRefreshFunctions, &QPushButton::clicked, [this] { updateFunctionList(); }); connect(m_ui.txtFuncSearch, &QLineEdit::textChanged, [this] { updateFunctionList(); }); connect(m_ui.btnSearch, &QPushButton::clicked, this, &CpuWidget::onSearchButtonClicked); connect(m_ui.listSearchResults, &QListWidget::itemDoubleClicked, [this](QListWidgetItem* item) { m_ui.memoryviewWidget->gotoAddress(item->data(256).toUInt()); }); connect(m_ui.cmbSearchType, &QComboBox::currentIndexChanged, [this](int i) { if (i < 4) m_ui.chkSearchHex->setEnabled(true); else m_ui.chkSearchHex->setEnabled(false); }); m_ui.disassemblyWidget->SetCpu(&cpu); m_ui.registerWidget->SetCpu(&cpu); m_ui.memoryviewWidget->SetCpu(&cpu); this->repaint(); } CpuWidget::~CpuWidget() = default; void CpuWidget::paintEvent(QPaintEvent* event) { m_ui.registerWidget->update(); m_ui.disassemblyWidget->update(); m_ui.memoryviewWidget->update(); } // The cpu shouldn't be alive when these are called // But make sure it isn't just in case void CpuWidget::onStepInto() { if (!m_cpu.isAlive() || !m_cpu.isCpuPaused()) return; // Allow the cpu to skip this pc if it is a breakpoint CBreakPoints::SetSkipFirst(m_cpu.getCpuType(), m_cpu.getPC()); const u32 pc = m_cpu.getPC(); const MIPSAnalyst::MipsOpcodeInfo info = MIPSAnalyst::GetOpcodeInfo(&m_cpu, pc); u32 bpAddr = pc + 0x4; // Default to the next instruction if (info.isBranch) { if (!info.isConditional) { bpAddr = info.branchTarget; } else { if (info.conditionMet) { bpAddr = info.branchTarget; } else { bpAddr = pc + (2 * 4); // Skip branch delay slot } } } if (info.isSyscall) bpAddr = info.branchTarget; // Syscalls are always taken Host::RunOnCPUThread([&] { CBreakPoints::AddBreakPoint(m_cpu.getCpuType(), bpAddr, true); m_cpu.resumeCpu(); }); this->repaint(); } void CpuWidget::onStepOut() { if (!m_cpu.isAlive() || !m_cpu.isCpuPaused()) return; // Allow the cpu to skip this pc if it is a breakpoint CBreakPoints::SetSkipFirst(m_cpu.getCpuType(), m_cpu.getPC()); if (m_stackModel.rowCount() < 2) return; Host::RunOnCPUThread([&] { CBreakPoints::AddBreakPoint(m_cpu.getCpuType(), m_stackModel.data(m_stackModel.index(1, StackModel::PC), Qt::UserRole).toUInt(), true); m_cpu.resumeCpu(); }); this->repaint(); } void CpuWidget::onStepOver() { if (!m_cpu.isAlive() || !m_cpu.isCpuPaused()) return; const u32 pc = m_cpu.getPC(); const MIPSAnalyst::MipsOpcodeInfo info = MIPSAnalyst::GetOpcodeInfo(&m_cpu, pc); u32 bpAddr = pc + 0x4; // Default to the next instruction if (info.isBranch) { if (!info.isConditional) { if (info.isLinkedBranch) // jal, jalr { // it's a function call with a delay slot - skip that too bpAddr += 4; } else // j, ... { // in case of absolute branches, set the breakpoint at the branch target bpAddr = info.branchTarget; } } else // beq, ... { if (info.conditionMet) { bpAddr = info.branchTarget; } else { bpAddr = pc + (2 * 4); // Skip branch delay slot } } } Host::RunOnCPUThread([&] { CBreakPoints::AddBreakPoint(m_cpu.getCpuType(), bpAddr, true); m_cpu.resumeCpu(); }); this->repaint(); } void CpuWidget::onVMPaused() { // Stops us from telling the disassembly dialog to jump somwhere because breakpoint code paused the core. if (CBreakPoints::GetCorePaused()) { CBreakPoints::SetCorePaused(false); } else { m_ui.disassemblyWidget->gotoAddress(m_cpu.getPC()); } reloadCPUWidgets(); this->repaint(); } void CpuWidget::updateBreakpoints() { m_bpModel.refreshData(); } void CpuWidget::onBPListDoubleClicked(const QModelIndex& index) { if (index.isValid()) { if (index.column() == BreakpointModel::OFFSET) { m_ui.disassemblyWidget->gotoAddress(m_bpModel.data(index, Qt::UserRole).toUInt()); } } } void CpuWidget::onBPListContextMenu(QPoint pos) { if (!m_cpu.isAlive()) return; QMenu* contextMenu = new QMenu(tr("Breakpoint List Context Menu"), m_ui.breakpointList); QAction* newAction = new QAction(tr("New"), m_ui.breakpointList); connect(newAction, &QAction::triggered, this, &CpuWidget::contextBPListNew); contextMenu->addAction(newAction); const QItemSelectionModel* selModel = m_ui.breakpointList->selectionModel(); if (selModel->hasSelection()) { QAction* editAction = new QAction(tr("Edit"), m_ui.breakpointList); connect(editAction, &QAction::triggered, this, &CpuWidget::contextBPListEdit); contextMenu->addAction(editAction); if (selModel->selectedIndexes().count() == 1) { QAction* copyAction = new QAction(tr("Copy"), m_ui.breakpointList); connect(copyAction, &QAction::triggered, this, &CpuWidget::contextBPListCopy); contextMenu->addAction(copyAction); } QAction* deleteAction = new QAction(tr("Delete"), m_ui.breakpointList); connect(deleteAction, &QAction::triggered, this, &CpuWidget::contextBPListDelete); contextMenu->addAction(deleteAction); } contextMenu->popup(m_ui.breakpointList->mapToGlobal(pos)); } void CpuWidget::contextBPListCopy() { const QItemSelectionModel* selModel = m_ui.breakpointList->selectionModel(); if (!selModel->hasSelection()) return; QGuiApplication::clipboard()->setText(m_bpModel.data(selModel->currentIndex()).toString()); } void CpuWidget::contextBPListDelete() { const QItemSelectionModel* selModel = m_ui.breakpointList->selectionModel(); if (!selModel->hasSelection()) return; QModelIndexList rows = selModel->selectedIndexes(); std::sort(rows.begin(), rows.end(), [](const QModelIndex& a, const QModelIndex& b) { return a.row() > b.row(); }); for (const QModelIndex& index : rows) { m_bpModel.removeRows(index.row(), 1); } } void CpuWidget::contextBPListNew() { BreakpointDialog* bpDialog = new BreakpointDialog(this, &m_cpu, m_bpModel); bpDialog->show(); } void CpuWidget::contextBPListEdit() { const QItemSelectionModel* selModel = m_ui.breakpointList->selectionModel(); if (!selModel->hasSelection()) return; const int selectedRow = selModel->selectedIndexes().first().row(); auto bpObject = m_bpModel.at(selectedRow); BreakpointDialog* bpDialog = new BreakpointDialog(this, &m_cpu, m_bpModel, bpObject, selectedRow); bpDialog->show(); } void CpuWidget::updateFunctionList(bool whenEmpty) { if (!m_cpu.isAlive()) return; if (whenEmpty && m_ui.listFunctions->count()) return; m_ui.listFunctions->clear(); const auto demangler = demangler::CDemangler::createGcc(); const QString filter = m_ui.txtFuncSearch->text().toLower(); for (const auto& symbol : m_cpu.GetSymbolMap().GetAllSymbols(SymbolType::ST_FUNCTION)) { QString symbolName = symbol.name.c_str(); if (m_demangleFunctions) { symbolName = QString(demangler->demangleToString(symbol.name).c_str()); // If the name isn't mangled, or it doesn't understand, it'll return an empty string // Fall back to the original name if this is the case if (symbolName.isEmpty()) symbolName = symbol.name.c_str(); } if (filter.size() && !symbolName.toLower().contains(filter)) continue; QListWidgetItem* item = new QListWidgetItem(); item->setText(QString("%0 %1").arg(FilledQStringFromValue(symbol.address, 16)).arg(symbolName)); item->setData(256, symbol.address); m_ui.listFunctions->addItem(item); } } void CpuWidget::updateThreads() { m_threadModel.refreshData(); } void CpuWidget::onThreadListContextMenu(QPoint pos) { if (!m_ui.threadList->selectionModel()->hasSelection()) return; QMenu* contextMenu = new QMenu(tr("Thread List Context Menu"), m_ui.threadList); QAction* actionCopy = new QAction(tr("Copy"), m_ui.threadList); connect(actionCopy, &QAction::triggered, [this]() { const auto* selModel = m_ui.threadList->selectionModel(); if (!selModel->hasSelection()) return; QGuiApplication::clipboard()->setText(m_ui.threadList->model()->data(selModel->currentIndex()).toString()); }); contextMenu->addAction(actionCopy); contextMenu->popup(m_ui.threadList->mapToGlobal(pos)); } void CpuWidget::onThreadListDoubleClick(const QModelIndex& index) { switch (index.column()) { case ThreadModel::ThreadColumns::ENTRY: m_ui.memoryviewWidget->gotoAddress(m_ui.threadList->model()->data(index, Qt::UserRole).toUInt()); m_ui.tabWidget->setCurrentWidget(m_ui.tab_memory); break; default: // Default to PC m_ui.disassemblyWidget->gotoAddress(m_ui.threadList->model()->data(m_ui.threadList->model()->index(index.row(), ThreadModel::ThreadColumns::PC), Qt::UserRole).toUInt()); break; } } void CpuWidget::onFuncListContextMenu(QPoint pos) { if (!m_funclistContextMenu) m_funclistContextMenu = new QMenu(m_ui.listFunctions); else m_funclistContextMenu->clear(); QAction* demangleAction = new QAction(tr("Demangle Symbols"), m_ui.listFunctions); demangleAction->setCheckable(true); demangleAction->setChecked(m_demangleFunctions); connect(demangleAction, &QAction::triggered, [this] { m_demangleFunctions = !m_demangleFunctions; updateFunctionList(); }); m_funclistContextMenu->addAction(demangleAction); QAction* copyName = new QAction(tr("Copy Function Name"), m_ui.listFunctions); connect(copyName, &QAction::triggered, [this] { // We only store the address in the widget item // Resolve the function name by fetching the symbolmap and filtering the address const QListWidgetItem* selectedItem = m_ui.listFunctions->selectedItems().first(); const QString functionName = QString(m_cpu.GetSymbolMap().GetLabelString(selectedItem->data(256).toUInt()).c_str()); QApplication::clipboard()->setText(functionName); }); m_funclistContextMenu->addAction(copyName); QAction* copyAddress = new QAction(tr("Copy Function Address"), m_ui.listFunctions); connect(copyAddress, &QAction::triggered, [this] { const QString addressString = FilledQStringFromValue(m_ui.listFunctions->selectedItems().first()->data(256).toUInt(), 16); QApplication::clipboard()->setText(addressString); }); m_funclistContextMenu->addAction(copyAddress); m_funclistContextMenu->addSeparator(); QAction* gotoDisasm = new QAction(tr("Go to in Disassembly"), m_ui.listFunctions); connect(gotoDisasm, &QAction::triggered, [this] { m_ui.disassemblyWidget->gotoAddress(m_ui.listFunctions->selectedItems().first()->data(256).toUInt()); }); m_funclistContextMenu->addAction(gotoDisasm); QAction* gotoMemory = new QAction(tr("Go to in Memory View"), m_ui.listFunctions); connect(gotoMemory, &QAction::triggered, [this] { m_ui.memoryviewWidget->gotoAddress(m_ui.listFunctions->selectedItems().first()->data(256).toUInt()); }); m_funclistContextMenu->addAction(gotoMemory); m_funclistContextMenu->popup(m_ui.listFunctions->mapToGlobal(pos)); } void CpuWidget::onFuncListDoubleClick(QListWidgetItem* item) { m_ui.disassemblyWidget->gotoAddress(item->data(256).toUInt()); } void CpuWidget::updateStackFrames() { m_stackModel.refreshData(); } void CpuWidget::onStackListContextMenu(QPoint pos) { if (!m_ui.stackList->selectionModel()->hasSelection()) return; QMenu* contextMenu = new QMenu(tr("Stack List Context Menu"), m_ui.stackList); QAction* actionCopy = new QAction(tr("Copy"), m_ui.stackList); connect(actionCopy, &QAction::triggered, [this]() { const auto* selModel = m_ui.stackList->selectionModel(); if (!selModel->hasSelection()) return; QGuiApplication::clipboard()->setText(m_ui.stackList->model()->data(selModel->currentIndex()).toString()); }); contextMenu->addAction(actionCopy); contextMenu->popup(m_ui.stackList->mapToGlobal(pos)); } void CpuWidget::onStackListDoubleClick(const QModelIndex& index) { switch (index.column()) { case StackModel::StackModel::ENTRY: case StackModel::StackModel::ENTRY_LABEL: m_ui.disassemblyWidget->gotoAddress(m_ui.stackList->model()->data(m_ui.stackList->model()->index(index.row(), StackModel::StackColumns::ENTRY), Qt::UserRole).toUInt()); break; case StackModel::StackModel::SP: m_ui.memoryviewWidget->gotoAddress(m_ui.stackList->model()->data(index, Qt::UserRole).toUInt()); m_ui.tabWidget->setCurrentWidget(m_ui.tab_memory); break; default: // Default to PC m_ui.disassemblyWidget->gotoAddress(m_ui.stackList->model()->data(m_ui.stackList->model()->index(index.row(), StackModel::StackColumns::PC), Qt::UserRole).toUInt()); break; } } template static std::vector searchWorker(DebugInterface* cpu, u32 start, u32 end, T value) { std::vector hitAddresses; for (u32 addr = start; addr < end; addr += sizeof(T)) { T val = 0; switch (sizeof(T)) { case sizeof(u8): val = cpu->read8(addr); break; case sizeof(u16): val = cpu->read16(addr); break; case sizeof(u32): { if (std::is_same_v) { const float fTop = value + 0.00001f; const float fBottom = value - 0.00001f; const float memValue = bit_cast(cpu->read32(addr)); if (fBottom < memValue && memValue < fTop) { hitAddresses.emplace_back(addr); } continue; } val = cpu->read32(addr); break; } case sizeof(u64): { if (std::is_same_v) { const double dTop = value + 0.00001f; const double dBottom = value - 0.00001f; const double memValue = bit_cast(cpu->read64(addr)); if (dBottom < memValue && memValue < dTop) { hitAddresses.emplace_back(addr); } continue; } val = cpu->read64(addr); break; } default: Console.Error("Debugger: Unknown type when doing memory search!"); return hitAddresses; break; } if (val == value) { hitAddresses.push_back(addr); } } return hitAddresses; } static std::vector searchWorkerString(DebugInterface* cpu, u32 start, u32 end, std::string value) { std::vector hitAddresses; for (u32 addr = start; addr < end; addr += 1) { bool hit = true; for (size_t i = 0; i < value.length(); i++) { if (static_cast(cpu->read8(addr + i)) != value[i]) { hit = false; break; } } if (hit) { hitAddresses.emplace_back(addr); addr += value.length() - 1; } } return hitAddresses; } std::vector startWorker(DebugInterface* cpu, int type, u32 start, u32 end, QString value, int base) { const bool isSigned = value.startsWith("-"); switch (type) { case 0: return isSigned ? searchWorker(cpu, start, end, value.toShort(nullptr, base)) : searchWorker(cpu, start, end, value.toUShort(nullptr, base)); case 1: return isSigned ? searchWorker(cpu, start, end, value.toShort(nullptr, base)) : searchWorker(cpu, start, end, value.toUShort(nullptr, base)); case 2: return isSigned ? searchWorker(cpu, start, end, value.toInt(nullptr, base)) : searchWorker(cpu, start, end, value.toUInt(nullptr, base)); case 3: return isSigned ? searchWorker(cpu, start, end, value.toLong(nullptr, base)) : searchWorker(cpu, start, end, value.toULongLong(nullptr, base)); case 4: return searchWorker(cpu, start, end, value.toFloat()); case 5: return searchWorker(cpu, start, end, value.toDouble()); case 6: return searchWorkerString(cpu, start, end, value.toStdString()); default: Console.Error("Debugger: Unknown type when doing memory search!"); break; }; return {}; } void CpuWidget::onSearchButtonClicked() { if (!m_cpu.isAlive()) return; const int searchType = m_ui.cmbSearchType->currentIndex(); const bool searchHex = m_ui.chkSearchHex->isChecked(); bool ok; const u32 searchStart = m_ui.txtSearchStart->text().toUInt(&ok, 16); if (!ok) { QMessageBox::critical(this, tr("Debugger"), tr("Invalid start address")); return; } const u32 searchEnd = m_ui.txtSearchEnd->text().toUInt(&ok, 16); if (!ok) { QMessageBox::critical(this, tr("Debugger"), tr("Invalid end address")); return; } if (searchStart >= searchEnd) { QMessageBox::critical(this, tr("Debugger"), tr("Start address can't be equal to or greater than the end address")); return; } const QString searchValue = m_ui.txtSearchValue->text(); if (searchType < 4) { searchValue.toLong(&ok, searchHex ? 16 : 10); } else if (searchType != 6) { searchValue.toDouble(&ok); } if (!ok) { QMessageBox::critical(this, tr("Debugger"), tr("Invalid search value")); return; } QFutureWatcher>* workerWatcher = new QFutureWatcher>; connect(workerWatcher, &QFutureWatcher>::finished, [this, workerWatcher] { m_ui.btnSearch->setDisabled(false); m_ui.listSearchResults->clear(); const auto& results = workerWatcher->future().result(); for (const auto& address : results) { QListWidgetItem* item = new QListWidgetItem(QtUtils::FilledQStringFromValue(address, 16)); item->setData(256, address); m_ui.listSearchResults->addItem(item); } }); m_ui.btnSearch->setDisabled(true); QFuture> workerFuture = QtConcurrent::run(startWorker, &m_cpu, searchType, searchStart, searchEnd, searchValue, searchHex ? 16 : 10); workerWatcher->setFuture(workerFuture); }