Move DolphinQt2 to DolphinQt

1 files changed, 497 insertions, 0 deletions

diff --git a/Source/Core/DolphinQt/Debugger/CodeWidget.cpp b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
new file mode 100644
index 0000000000..4f782e0152
--- /dev/null
+++ b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
@@ -0,0 +1,497 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "DolphinQt/Debugger/CodeWidget.h"
+
+#include <chrono>
+
+#include <QGridLayout>
+#include <QGroupBox>
+#include <QLineEdit>
+#include <QListWidget>
+#include <QSplitter>
+#include <QTableWidget>
+#include <QWidget>
+
+#include "Common/Event.h"
+#include "Common/StringUtil.h"
+#include "Core/Core.h"
+#include "Core/Debugger/Debugger_SymbolMap.h"
+#include "Core/HW/CPU.h"
+#include "Core/PowerPC/MMU.h"
+#include "Core/PowerPC/PPCSymbolDB.h"
+#include "Core/PowerPC/PowerPC.h"
+#include "DolphinQt/Host.h"
+#include "DolphinQt/Settings.h"
+
+CodeWidget::CodeWidget(QWidget* parent) : QDockWidget(parent)
+{
+  setWindowTitle(tr("Code"));
+  setObjectName(QStringLiteral("code"));
+
+  setAllowedAreas(Qt::AllDockWidgetAreas);
+
+  auto& settings = Settings::GetQSettings();
+
+  restoreGeometry(settings.value(QStringLiteral("codewidget/geometry")).toByteArray());
+  setFloating(settings.value(QStringLiteral("codewidget/floating")).toBool());
+
+  connect(&Settings::Instance(), &Settings::CodeVisibilityChanged,
+          [this](bool visible) { setHidden(!visible); });
+
+  connect(Host::GetInstance(), &Host::UpdateDisasmDialog, this, [this] {
+    if (Core::GetState() == Core::State::Paused)
+      SetAddress(PowerPC::ppcState.pc, CodeViewWidget::SetAddressUpdate::WithoutUpdate);
+    Update();
+  });
+
+  connect(Host::GetInstance(), &Host::NotifyMapLoaded, this, &CodeWidget::UpdateSymbols);
+
+  connect(&Settings::Instance(), &Settings::DebugModeToggled,
+          [this](bool enabled) { setHidden(!enabled || !Settings::Instance().IsCodeVisible()); });
+
+  connect(&Settings::Instance(), &Settings::EmulationStateChanged, this, &CodeWidget::Update);
+
+  setHidden(!Settings::Instance().IsCodeVisible() || !Settings::Instance().IsDebugModeEnabled());
+
+  CreateWidgets();
+  ConnectWidgets();
+
+  m_code_splitter->restoreState(
+      settings.value(QStringLiteral("codewidget/codesplitter")).toByteArray());
+  m_box_splitter->restoreState(
+      settings.value(QStringLiteral("codewidget/boxsplitter")).toByteArray());
+
+  Update();
+}
+
+CodeWidget::~CodeWidget()
+{
+  auto& settings = Settings::GetQSettings();
+
+  settings.setValue(QStringLiteral("codewidget/geometry"), saveGeometry());
+  settings.setValue(QStringLiteral("codewidget/floating"), isFloating());
+  settings.setValue(QStringLiteral("codewidget/codesplitter"), m_code_splitter->saveState());
+  settings.setValue(QStringLiteral("codewidget/boxplitter"), m_box_splitter->saveState());
+}
+
+void CodeWidget::closeEvent(QCloseEvent*)
+{
+  Settings::Instance().SetCodeVisible(false);
+}
+
+void CodeWidget::CreateWidgets()
+{
+  auto* layout = new QGridLayout;
+
+  m_search_address = new QLineEdit;
+  m_search_symbols = new QLineEdit;
+  m_code_view = new CodeViewWidget;
+
+  m_search_address->setPlaceholderText(tr("Search Address"));
+  m_search_symbols->setPlaceholderText(tr("Filter Symbols"));
+
+  // Callstack
+  auto* callstack_box = new QGroupBox(tr("Callstack"));
+  auto* callstack_layout = new QVBoxLayout;
+  m_callstack_list = new QListWidget;
+
+  callstack_box->setLayout(callstack_layout);
+  callstack_layout->addWidget(m_callstack_list);
+
+  // Symbols
+  auto* symbols_box = new QGroupBox(tr("Symbols"));
+  auto* symbols_layout = new QVBoxLayout;
+  m_symbols_list = new QListWidget;
+
+  symbols_box->setLayout(symbols_layout);
+  symbols_layout->addWidget(m_symbols_list);
+
+  // Function calls
+  auto* function_calls_box = new QGroupBox(tr("Function calls"));
+  auto* function_calls_layout = new QVBoxLayout;
+  m_function_calls_list = new QListWidget;
+
+  function_calls_box->setLayout(function_calls_layout);
+  function_calls_layout->addWidget(m_function_calls_list);
+
+  // Function callers
+  auto* function_callers_box = new QGroupBox(tr("Function callers"));
+  auto* function_callers_layout = new QVBoxLayout;
+  m_function_callers_list = new QListWidget;
+
+  function_callers_box->setLayout(function_callers_layout);
+  function_callers_layout->addWidget(m_function_callers_list);
+
+  m_box_splitter = new QSplitter(Qt::Vertical);
+
+  m_box_splitter->addWidget(callstack_box);
+  m_box_splitter->addWidget(symbols_box);
+  m_box_splitter->addWidget(function_calls_box);
+  m_box_splitter->addWidget(function_callers_box);
+
+  m_code_splitter = new QSplitter(Qt::Horizontal);
+
+  m_code_splitter->addWidget(m_box_splitter);
+  m_code_splitter->addWidget(m_code_view);
+
+  layout->addWidget(m_search_address, 0, 0);
+  layout->addWidget(m_search_symbols, 0, 1);
+  layout->addWidget(m_code_splitter, 1, 0, -1, -1);
+
+  QWidget* widget = new QWidget(this);
+  widget->setLayout(layout);
+  setWidget(widget);
+}
+
+void CodeWidget::ConnectWidgets()
+{
+  connect(m_search_address, &QLineEdit::textChanged, this, &CodeWidget::OnSearchAddress);
+  connect(m_search_symbols, &QLineEdit::textChanged, this, &CodeWidget::OnSearchSymbols);
+
+  connect(m_symbols_list, &QListWidget::itemClicked, this, &CodeWidget::OnSelectSymbol);
+  connect(m_callstack_list, &QListWidget::itemSelectionChanged, this,
+          &CodeWidget::OnSelectCallstack);
+  connect(m_function_calls_list, &QListWidget::itemSelectionChanged, this,
+          &CodeWidget::OnSelectFunctionCalls);
+  connect(m_function_callers_list, &QListWidget::itemSelectionChanged, this,
+          &CodeWidget::OnSelectFunctionCallers);
+
+  connect(m_code_view, &CodeViewWidget::SymbolsChanged, this, &CodeWidget::UpdateSymbols);
+  connect(m_code_view, &CodeViewWidget::BreakpointsChanged, this,
+          [this] { emit BreakpointsChanged(); });
+
+  connect(m_code_view, &CodeViewWidget::RequestPPCComparison, this,
+          &CodeWidget::RequestPPCComparison);
+}
+
+void CodeWidget::OnSearchAddress()
+{
+  bool good = true;
+  u32 address = m_search_address->text().toUInt(&good, 16);
+
+  QPalette palette;
+  QFont font;
+
+  if (!good && !m_search_address->text().isEmpty())
+  {
+    font.setBold(true);
+    palette.setColor(QPalette::Text, Qt::red);
+  }
+
+  m_search_address->setPalette(palette);
+  m_search_address->setFont(font);
+
+  if (good)
+    m_code_view->SetAddress(address, CodeViewWidget::SetAddressUpdate::WithUpdate);
+
+  Update();
+
+  m_search_address->setFocus();
+}
+
+void CodeWidget::OnSearchSymbols()
+{
+  m_symbol_filter = m_search_symbols->text();
+  UpdateSymbols();
+}
+
+void CodeWidget::OnSelectSymbol()
+{
+  const auto items = m_symbols_list->selectedItems();
+  if (items.isEmpty())
+    return;
+
+  const u32 address = items[0]->data(Qt::UserRole).toUInt();
+  const Common::Symbol* symbol = g_symbolDB.GetSymbolFromAddr(address);
+
+  m_code_view->SetAddress(address, CodeViewWidget::SetAddressUpdate::WithUpdate);
+  UpdateCallstack();
+  UpdateFunctionCalls(symbol);
+  UpdateFunctionCallers(symbol);
+
+  m_code_view->setFocus();
+}
+
+void CodeWidget::OnSelectCallstack()
+{
+  const auto items = m_callstack_list->selectedItems();
+  if (items.isEmpty())
+    return;
+
+  m_code_view->SetAddress(items[0]->data(Qt::UserRole).toUInt(),
+                          CodeViewWidget::SetAddressUpdate::WithUpdate);
+  Update();
+}
+
+void CodeWidget::OnSelectFunctionCalls()
+{
+  const auto items = m_function_calls_list->selectedItems();
+  if (items.isEmpty())
+    return;
+
+  m_code_view->SetAddress(items[0]->data(Qt::UserRole).toUInt(),
+                          CodeViewWidget::SetAddressUpdate::WithUpdate);
+  Update();
+}
+
+void CodeWidget::OnSelectFunctionCallers()
+{
+  const auto items = m_function_callers_list->selectedItems();
+  if (items.isEmpty())
+    return;
+
+  m_code_view->SetAddress(items[0]->data(Qt::UserRole).toUInt(),
+                          CodeViewWidget::SetAddressUpdate::WithUpdate);
+  Update();
+}
+
+void CodeWidget::SetAddress(u32 address, CodeViewWidget::SetAddressUpdate update)
+{
+  m_code_view->SetAddress(address, update);
+}
+
+void CodeWidget::Update()
+{
+  const Common::Symbol* symbol = g_symbolDB.GetSymbolFromAddr(m_code_view->GetAddress());
+
+  UpdateCallstack();
+
+  m_code_view->Update();
+  m_code_view->setFocus();
+
+  if (!symbol)
+    return;
+
+  UpdateFunctionCalls(symbol);
+  UpdateFunctionCallers(symbol);
+}
+
+void CodeWidget::UpdateCallstack()
+{
+  if (Core::GetState() == Core::State::Starting)
+    return;
+
+  m_callstack_list->clear();
+
+  std::vector<Dolphin_Debugger::CallstackEntry> stack;
+
+  bool success = Dolphin_Debugger::GetCallstack(stack);
+
+  if (!success)
+  {
+    m_callstack_list->addItem(tr("Invalid callstack"));
+    return;
+  }
+
+  for (const auto& frame : stack)
+  {
+    auto* item =
+        new QListWidgetItem(QString::fromStdString(frame.Name.substr(0, frame.Name.length() - 1)));
+    item->setData(Qt::UserRole, frame.vAddress);
+
+    m_callstack_list->addItem(item);
+  }
+}
+
+void CodeWidget::UpdateSymbols()
+{
+  QString selection = m_symbols_list->selectedItems().isEmpty() ?
+                          QStringLiteral("") :
+                          m_symbols_list->selectedItems()[0]->text();
+  m_symbols_list->clear();
+
+  for (const auto& symbol : g_symbolDB.Symbols())
+  {
+    QString name = QString::fromStdString(symbol.second.name);
+
+    auto* item = new QListWidgetItem(name);
+    if (name == selection)
+      item->setSelected(true);
+
+    // Disable non-function symbols as you can't do anything with them.
+    if (symbol.second.type != Common::Symbol::Type::Function)
+      item->setFlags(Qt::NoItemFlags);
+
+    item->setData(Qt::UserRole, symbol.second.address);
+
+    if (name.indexOf(m_symbol_filter) != -1)
+      m_symbols_list->addItem(item);
+  }
+
+  m_symbols_list->sortItems();
+}
+
+void CodeWidget::UpdateFunctionCalls(const Common::Symbol* symbol)
+{
+  m_function_calls_list->clear();
+
+  for (const auto& call : symbol->calls)
+  {
+    const u32 addr = call.function;
+    const Common::Symbol* call_symbol = g_symbolDB.GetSymbolFromAddr(addr);
+
+    if (call_symbol)
+    {
+      auto* item = new QListWidgetItem(
+          QString::fromStdString(StringFromFormat("> %s (%08x)", call_symbol->name.c_str(), addr)));
+      item->setData(Qt::UserRole, addr);
+
+      m_function_calls_list->addItem(item);
+    }
+  }
+}
+
+void CodeWidget::UpdateFunctionCallers(const Common::Symbol* symbol)
+{
+  m_function_callers_list->clear();
+
+  for (const auto& caller : symbol->callers)
+  {
+    const u32 addr = caller.call_address;
+    const Common::Symbol* caller_symbol = g_symbolDB.GetSymbolFromAddr(addr);
+
+    if (caller_symbol)
+    {
+      auto* item = new QListWidgetItem(QString::fromStdString(
+          StringFromFormat("< %s (%08x)", caller_symbol->name.c_str(), addr)));
+      item->setData(Qt::UserRole, addr);
+
+      m_function_callers_list->addItem(item);
+    }
+  }
+}
+
+void CodeWidget::Step()
+{
+  if (!CPU::IsStepping())
+    return;
+
+  Common::Event sync_event;
+
+  PowerPC::CoreMode old_mode = PowerPC::GetMode();
+  PowerPC::SetMode(PowerPC::CoreMode::Interpreter);
+  PowerPC::breakpoints.ClearAllTemporary();
+  CPU::StepOpcode(&sync_event);
+  sync_event.WaitFor(std::chrono::milliseconds(20));
+  PowerPC::SetMode(old_mode);
+  Core::DisplayMessage(tr("Step successful!").toStdString(), 2000);
+  // Will get a UpdateDisasmDialog(), don't update the GUI here.
+}
+
+void CodeWidget::StepOver()
+{
+  if (!CPU::IsStepping())
+    return;
+
+  UGeckoInstruction inst = PowerPC::HostRead_Instruction(PC);
+  if (inst.LK)
+  {
+    PowerPC::breakpoints.ClearAllTemporary();
+    PowerPC::breakpoints.Add(PC + 4, true);
+    CPU::EnableStepping(false);
+    Core::DisplayMessage(tr("Step over in progress...").toStdString(), 2000);
+  }
+  else
+  {
+    Step();
+  }
+}
+
+// Returns true on a rfi, blr or on a bclr that evaluates to true.
+static bool WillInstructionReturn(UGeckoInstruction inst)
+{
+  // Is a rfi instruction
+  if (inst.hex == 0x4C000064u)
+    return true;
+  bool counter = (inst.BO_2 >> 2 & 1) != 0 || (CTR != 0) != ((inst.BO_2 >> 1 & 1) != 0);
+  bool condition = inst.BO_2 >> 4 != 0 || PowerPC::GetCRBit(inst.BI_2) == (inst.BO_2 >> 3 & 1);
+  bool isBclr = inst.OPCD_7 == 0b010011 && (inst.hex >> 1 & 0b10000) != 0;
+  return isBclr && counter && condition && !inst.LK_3;
+}
+
+void CodeWidget::StepOut()
+{
+  if (!CPU::IsStepping())
+    return;
+
+  CPU::PauseAndLock(true, false);
+  PowerPC::breakpoints.ClearAllTemporary();
+
+  // Keep stepping until the next return instruction or timeout after five seconds
+  using clock = std::chrono::steady_clock;
+  clock::time_point timeout = clock::now() + std::chrono::seconds(5);
+  PowerPC::CoreMode old_mode = PowerPC::GetMode();
+  PowerPC::SetMode(PowerPC::CoreMode::Interpreter);
+
+  // Loop until either the current instruction is a return instruction with no Link flag
+  // or a breakpoint is detected so it can step at the breakpoint. If the PC is currently
+  // on a breakpoint, skip it.
+  UGeckoInstruction inst = PowerPC::HostRead_Instruction(PC);
+  do
+  {
+    if (WillInstructionReturn(inst))
+    {
+      PowerPC::SingleStep();
+      break;
+    }
+
+    if (inst.LK)
+    {
+      // Step over branches
+      u32 next_pc = PC + 4;
+      do
+      {
+        PowerPC::SingleStep();
+      } while (PC != next_pc && clock::now() < timeout &&
+               !PowerPC::breakpoints.IsAddressBreakPoint(PC));
+    }
+    else
+    {
+      PowerPC::SingleStep();
+    }
+
+    inst = PowerPC::HostRead_Instruction(PC);
+  } while (clock::now() < timeout && !PowerPC::breakpoints.IsAddressBreakPoint(PC));
+
+  PowerPC::SetMode(old_mode);
+  CPU::PauseAndLock(false, false);
+
+  emit Host::GetInstance()->UpdateDisasmDialog();
+
+  if (PowerPC::breakpoints.IsAddressBreakPoint(PC))
+    Core::DisplayMessage(tr("Breakpoint encountered! Step out aborted.").toStdString(), 2000);
+  else if (clock::now() >= timeout)
+    Core::DisplayMessage(tr("Step out timed out!").toStdString(), 2000);
+  else
+    Core::DisplayMessage(tr("Step out successful!").toStdString(), 2000);
+}
+
+void CodeWidget::Skip()
+{
+  PC += 4;
+  ShowPC();
+}
+
+void CodeWidget::ShowPC()
+{
+  m_code_view->SetAddress(PC, CodeViewWidget::SetAddressUpdate::WithUpdate);
+  Update();
+}
+
+void CodeWidget::SetPC()
+{
+  PC = m_code_view->GetAddress();
+  Update();
+}
+
+void CodeWidget::ToggleBreakpoint()
+{
+  m_code_view->ToggleBreakpoint();
+}
+
+void CodeWidget::AddBreakpoint()
+{
+  m_code_view->AddBreakpoint();
+}