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