src/gui/Mainwindow.cxx

   1 #include "Mainwindow.hxx"
   2 #include "qt.hxx"
   3 #include "disassembler/llvm/LLVMDisassembler.hxx"
   4
   5 #include "widgets/CFGScene.hxx"
   6
   7 #include <iostream>
   8 #include <sstream>
   9 #include <map>
  10
  11 #include <QtGui>
  12
  13 namespace {
  14         BasicBlockWidget *
  15         local__add_basic_block(BasicBlock * block, Disassembler * dis,
  16                                std::map<uint64_t, BasicBlockWidget*>& known_blocks,
  17                                CFGScene * scene, uint64_t starty, uint64_t startx);
  18 }
  19
  20 Mainwindow::Mainwindow(InformationManager* mgr)
  21         : manager(mgr)
  22         , logger(log4cxx::Logger::getLogger("Mainwindow")) {
  23         openAction = new QAction(tr("&Open"), this);
  24         // saveAction = new QAction(tr("&Save"), this);
  25         exitAction = new QAction(tr("E&xit"), this);
  26
  27         connect(openAction, SIGNAL(triggered()),
  28                 this, SLOT(open()));
  29         // connect(saveAction, SIGNAL(triggered()), this, SLOT(save()));
  30         connect(exitAction, SIGNAL(triggered()),
  31                 qApp, SLOT(quit()));
  32
  33         fileMenu = menuBar()->addMenu(tr("&File"));
  34         fileMenu->addAction(openAction);
  35         // fileMenu->addAction(saveAction);
  36         fileMenu->addSeparator();
  37         fileMenu->addAction(exitAction);
  38
  39         scripting = new ScriptingDock(tr("Scripting"), this);
  40         scripting->setAllowedAreas(Qt::BottomDockWidgetArea);
  41         addDockWidget(Qt::BottomDockWidgetArea, scripting);
  42
  43         listWidget = new QListWidget();
  44         stackedWidget = new QStackedWidget();
  45         dockWidget = new QDockWidget(tr("Functions"), this);
  46         dockWidget->setAllowedAreas(Qt::LeftDockWidgetArea |
  47                                     Qt::RightDockWidgetArea);
  48         dockWidget->setWidget(listWidget);
  49         addDockWidget(Qt::LeftDockWidgetArea, dockWidget);
  50         setCentralWidget(stackedWidget);
  51
  52         connect(listWidget, SIGNAL(currentRowChanged(int)),
  53                 stackedWidget, SLOT(setCurrentIndex(int)));
  54
  55         setWindowTitle(tr("FRIDA"));
  56
  57         mgr->connect_new_function_signal([&] (Function* fun) {addFunction(fun);});
  58         mgr->connect_new_dyn_symbol_signal([&] (const std::string& name) {
  59                         auto item = new QListWidgetItem(name.c_str(), listWidget);
  60                         item->setBackground(QBrush(QColor(0xff, 0xdd, 0xdd)));
  61                 });
  62 }
  63
  64 void Mainwindow::quit()
  65 {
  66         QMessageBox messageBox;
  67         messageBox.setWindowTitle(tr("Notepad"));
  68         messageBox.setText(tr("Do you really want to quit?"));
  69         messageBox.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
  70         messageBox.setDefaultButton(QMessageBox::No);
  71         if (messageBox.exec() == QMessageBox::Yes)
  72                 qApp->quit();
  73 }
  74
  75 void Mainwindow::open() {
  76         QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"), "",
  77                                                         tr("Binaries (*)"));
  78
  79         manager->reset(fileName.toStdString());
  80 }
  81
  82 void Mainwindow::addFunction(Function* fun) {
  83         if (functions.find(fun) != functions.end())
  84                 return;
  85
  86         functions.insert(fun);
  87
  88         QTabWidget * w = new QTabWidget();
  89
  90         // CFG
  91         CFGScene * scene = new CFGScene;
  92
  93         Disassembler * dis = manager->getDisassembler();
  94         BasicBlock * block = dis->getBasicBlock(fun->getStartAddress());
  95
  96         uint64_t start_address(std::numeric_limits<uint64_t>::max());
  97         for (auto b : fun->blocks()) {
  98                 if (b.first < start_address)
  99                         start_address = b.first;
 100         }
 101
 102         local__add_basic_block(block, manager->getDisassembler(), blocks, scene,
 103                                start_address, 100);
 104
 105         QGraphicsView * view = new QGraphicsView(scene);
 106         w->addTab(view, "CFG");
 107
 108         // Listing
 109         QTableWidget * t = new QTableWidget();
 110         t->setColumnCount(3);
 111         t->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
 112
 113         w->addTab(t, "Listing");
 114
 115         listWidget->addItem(fun->getName().c_str());
 116         stackedWidget->addWidget(w);
 117 }
 118
 119 namespace {
 120         BasicBlockWidget *
 121         local__add_basic_block(BasicBlock * block, Disassembler * dis,
 122                                std::map<uint64_t, BasicBlockWidget*>& known_blocks,
 123                                CFGScene * scene, uint64_t starty, uint64_t startx) {
 124
 125                 decltype(known_blocks.begin()) old;
 126                 if ((old = known_blocks.find(block->getStartAddress())) != known_blocks.end())
 127                         return old->second;
 128
 129                 std::stringstream s;
 130                 s << "BLOCK_" << std::hex << block->getStartAddress()
 131                   << "_" << block->getEndAddress();
 132                 BasicBlockWidget * widget = new BasicBlockWidget(s.str().c_str(), block);
 133
 134                 known_blocks.insert(std::make_pair(block->getStartAddress(), widget));
 135
 136                 scene->addItem(widget);
 137                 widget->setFlag(QGraphicsItem::ItemIsMovable, true);
 138                 widget->moveBy(100*startx, block->getStartAddress() - starty);
 139
 140                 dis->printEachInstruction(block->getStartAddress(),
 141                                           block->getEndAddress(),
 142                                           [&](uint8_t* bytes,
 143                                               size_t byte_count,
 144                                               const std::string& line,
 145                                               const std::string& ref) {
 146                                                   widget->addItem(bytes, byte_count,
 147                                                                   line.c_str() + 1, // remove \t
 148                                                                   ref.c_str());
 149                                           });
 150
 151                 BasicBlockWidget *tmp, *nextl(NULL), *nextr(NULL);
 152                 BasicBlock * tmpblock;
 153                 if (block->getNextBlock(0) != 0) {
 154                         int xshift = 0;
 155                         if (block->getNextBlock(1) != 0)
 156                                 xshift = 1;
 157                         tmpblock = dis->getBasicBlock(block->getNextBlock(0));
 158                         tmp = local__add_basic_block(tmpblock, dis,
 159                                                      known_blocks,
 160                                                      scene, starty, startx+xshift);
 161                         nextl = tmp;
 162                         tmp->addPrevious(widget);
 163                 }
 164                 if (block->getNextBlock(1) != 0) {
 165                         tmpblock = dis->getBasicBlock(block->getNextBlock(1));
 166                         tmp = local__add_basic_block(tmpblock, dis,
 167                                                      known_blocks,
 168                                                      scene, starty, startx-1);
 169                         nextr = tmp;
 170                         tmp->addPrevious(widget);
 171                 }
 172                 widget->addNext(nextl, nextr);
 173                 return widget;
 174         }
 175 }