src/gui/Mainwindow.cxx

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