src/gui/Mainwindow.cxx

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