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 }
  59
  60 void Mainwindow::quit()
  61 {
  62         QMessageBox messageBox;
  63         messageBox.setWindowTitle(tr("Notepad"));
  64         messageBox.setText(tr("Do you really want to quit?"));
  65         messageBox.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
  66         messageBox.setDefaultButton(QMessageBox::No);
  67         if (messageBox.exec() == QMessageBox::Yes)
  68                 qApp->quit();
  69 }
  70
  71 void Mainwindow::open() {
  72         QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"), "",
  73                                                         tr("Binaries (*)"));
  74
  75         manager->reset(fileName.toStdString());
  76 }
  77
  78 void Mainwindow::addFunction(Function* fun) {
  79         if (functions.find(fun) != functions.end())
  80                 return;
  81
  82         functions.insert(fun);
  83
  84         QTabWidget * w = new QTabWidget();
  85
  86         // CFG
  87         CFGScene * scene = new CFGScene;
  88
  89         Disassembler * dis = manager->getDisassembler();
  90         BasicBlock * block = dis->getBasicBlock(fun->getStartAddress());
  91
  92         uint64_t start_address(std::numeric_limits<uint64_t>::max());
  93         for (auto b : fun->blocks()) {
  94                 if (b.first < start_address)
  95                         start_address = b.first;
  96         }
  97
  98         local__add_basic_block(block, manager->getDisassembler(), blocks, scene,
  99                                start_address, 100);
 100
 101         QGraphicsView * view = new QGraphicsView(scene);
 102         w->addTab(view, "CFG");
 103
 104         // Listing
 105         QTableWidget * t = new QTableWidget();
 106         t->setColumnCount(3);
 107         t->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
 108
 109         w->addTab(t, "Listing");
 110
 111         listWidget->addItem(fun->getName().c_str());
 112         stackedWidget->addWidget(w);
 113 }
 114
 115 namespace {
 116         BasicBlockWidget *
 117         local__add_basic_block(BasicBlock * block, Disassembler * dis,
 118                                std::map<uint64_t, BasicBlockWidget*>& known_blocks,
 119                                CFGScene * scene, uint64_t starty, uint64_t startx) {
 120
 121                 decltype(known_blocks.begin()) old;
 122                 if ((old = known_blocks.find(block->getStartAddress())) != known_blocks.end())
 123                         return old->second;
 124
 125                 std::stringstream s;
 126                 s << "BLOCK_" << std::hex << block->getStartAddress()
 127                   << "_" << block->getEndAddress();
 128                 BasicBlockWidget * widget = new BasicBlockWidget(s.str().c_str(), block);
 129
 130                 known_blocks.insert(std::make_pair(block->getStartAddress(), widget));
 131
 132                 scene->addItem(widget);
 133                 widget->setFlag(QGraphicsItem::ItemIsMovable, true);
 134                 widget->moveBy(100*startx, block->getStartAddress() - starty);
 135
 136                 dis->printEachInstruction(block->getStartAddress(),
 137                                           block->getEndAddress(),
 138                                           [&](uint8_t* bytes,
 139                                               size_t byte_count,
 140                                               const std::string& line,
 141                                               const std::string& ref) {
 142                                                   widget->addItem(bytes, byte_count,
 143                                                                   line.c_str() + 1, // remove \t
 144                                                                   ref.c_str());
 145                                           });
 146
 147                 BasicBlockWidget *tmp, *nextl(NULL), *nextr(NULL);
 148                 BasicBlock * tmpblock;
 149                 if (block->getNextBlock(0) != 0) {
 150                         int xshift = 0;
 151                         if (block->getNextBlock(1) != 0)
 152                                 xshift = 1;
 153                         tmpblock = dis->getBasicBlock(block->getNextBlock(0));
 154                         tmp = local__add_basic_block(tmpblock, dis,
 155                                                      known_blocks,
 156                                                      scene, starty, startx+xshift);
 157                         nextl = tmp;
 158                         tmp->addPrevious(widget);
 159                 }
 160                 if (block->getNextBlock(1) != 0) {
 161                         tmpblock = dis->getBasicBlock(block->getNextBlock(1));
 162                         tmp = local__add_basic_block(tmpblock, dis,
 163                                                      known_blocks,
 164                                                      scene, starty, startx-1);
 165                         nextr = tmp;
 166                         tmp->addPrevious(widget);
 167                 }
 168                 widget->addNext(nextl, nextr);
 169                 return widget;
 170         }
 171 }