src/core/InformationManager.cxx

   1 #include "InformationManager.hxx"
   2 #include "bindings/Interpreter.hxx"
   3 #include "disassembler/llvm/LLVMDisassembler.hxx"
   4 #include "core/Function.hxx"
   5 #include "core/BasicBlock.hxx"
   6 #include "core/Comment.hxx"
   7 #include "core/events/NewFunctionEvent.hxx"
   8 #include "core/events/ChangeCommentEvent.hxx"
   9
  10 #include "gui/qt.hxx"
  11 #include <quazip/quazip.h>
  12 #include <quazip/quazipfile.h>
  13
  14 #include <QTemporaryFile>
  15
  16 InformationManager* current_information_manager;
  17
  18 InformationManager::InformationManager()
  19         : logger(log4cxx::Logger::getLogger("core.InformationManager"))
  20 {
  21         current_information_manager = this;
  22
  23         QPluginLoader* loader = new QPluginLoader("libguilePlugin", NULL);
  24         if (!loader->load())
  25                 LOG4CXX_ERROR(logger, "Loading plugin failed: " << loader->errorString().toStdString());
  26         interpreters["GUILE"] = qobject_cast<Interpreter*>(loader->instance());
  27         plugins.push_back(loader);
  28 }
  29
  30 InformationManager::~InformationManager() {
  31         for (auto b : blocks)
  32                 delete b.second;
  33
  34         for (auto f : functions)
  35                 delete f.second;
  36
  37         for (auto i : plugins)
  38                 delete i;
  39 }
  40
  41 void InformationManager::reset(const std::string& filename) {
  42         this->filename = filename;
  43         disassembler.reset(createLLVMDisassembler(filename, this));
  44         if (disassembler.get() != NULL)
  45                 disassembler.get()->start();
  46 }
  47
  48 void InformationManager::load(const std::string& filename) {
  49         QuaZip zip(filename.c_str());
  50         QuaZipFile file(&zip);
  51         QuaZipFileInfo info;
  52
  53         zip.open(QuaZip::mdUnzip);
  54         tmpfile.reset(new QTemporaryFile());
  55
  56         {
  57                 LOG4CXX_INFO(logger, "Loading binary from archive");
  58                 zip.setCurrentFile("binary");
  59                 tmpfile->open();
  60                 file.open(QIODevice::ReadOnly);
  61                 QByteArray buffer;
  62                 while (!file.atEnd()) {
  63                         buffer = file.read(4096);
  64                         tmpfile->write(buffer);
  65                 }
  66                 tmpfile->flush();
  67                 file.close();
  68                 disassembler.reset(createLLVMDisassembler(tmpfile->fileName().toStdString(), this));
  69         }
  70
  71         for (bool more = zip.goToFirstFile(); more; more = zip.goToNextFile()) {
  72                 zip.getCurrentFileInfo(&info);
  73                 file.open(QIODevice::ReadOnly);
  74
  75                 if(info.name != "binary") {
  76                         if (info.name.startsWith("comment:")) {
  77                                 QXmlStreamReader reader(&file);
  78                                 auto starttoken = reader.readNext();
  79                                 auto elementtoken = reader.readNext();
  80                                 assert(QXmlStreamReader::StartDocument == starttoken);
  81                                 assert(QXmlStreamReader::StartElement == elementtoken);
  82                                 Comment::deserialize(reader, this);
  83                         } else {
  84                                 QXmlStreamReader reader(&file);
  85                                 auto starttoken = reader.readNext();
  86                                 auto elementtoken = reader.readNext();
  87                                 assert(QXmlStreamReader::StartDocument == starttoken);
  88                                 assert(QXmlStreamReader::StartElement == elementtoken);
  89                                 Function::deserialize(reader, this);
  90                         }
  91                 }
  92                 file.close();
  93         }
  94 }
  95
  96 void InformationManager::save(const std::string& filename) {
  97         QuaZip zip(filename.c_str());
  98         zip.open(QuaZip::mdCreate);
  99         zip.setComment("FRIDA 0.0");
 100         QuaZipFile outZipFile(&zip);
 101
 102         {
 103                 QFile binary(this->filename.c_str());
 104                 binary.open(QIODevice::ReadOnly);
 105                 QuaZipNewInfo zipinfo("binary");
 106                 zipinfo.setPermissions(static_cast<QFile::Permissions>(0x6444));
 107                 outZipFile.open(QIODevice::WriteOnly, zipinfo);
 108                 QByteArray buffer;
 109                 while (!binary.atEnd()) {
 110                         buffer = binary.read(4096);
 111                         outZipFile.write(buffer);
 112                 }
 113                 outZipFile.close();
 114         }
 115
 116         for (auto funpair : functions) {
 117                 Function* fun = funpair.second;
 118                 QuaZipNewInfo zipinfo(fun->getName().c_str());
 119                 zipinfo.setPermissions(static_cast<QFile::Permissions>(0x6444));
 120                 outZipFile.open(QIODevice::WriteOnly, zipinfo);
 121                 QXmlStreamWriter stream(&outZipFile);
 122                 stream.setAutoFormatting(true);
 123                 stream.setAutoFormattingIndent(-1);
 124                 stream.writeStartDocument();
 125
 126                 fun->serialize(stream);
 127
 128                 stream.writeEndDocument();
 129                 outZipFile.close();
 130         }
 131         for (auto commentpair : comments) {
 132                 Comment* comment = commentpair.second;
 133                 if (!comment->isLocal()) {
 134                         QuaZipNewInfo zipinfo(QString("comment:%1").arg(comment->getAddress(), 0, 16));
 135                         zipinfo.setPermissions(static_cast<QFile::Permissions>(0x6444));
 136                         outZipFile.open(QIODevice::WriteOnly, zipinfo);
 137                         QXmlStreamWriter stream(&outZipFile);
 138                         stream.setAutoFormatting(true);
 139                         stream.setAutoFormattingIndent(-1);
 140                         stream.writeStartDocument();
 141
 142                         comment->serialize(stream);
 143
 144                         stream.writeEndDocument();
 145                         outZipFile.close();
 146                 }
 147         }
 148
 149         zip.close();
 150 }
 151
 152
 153 /* *******************************
 154  * Accessors for the Functions map
 155  */
 156
 157 Function* InformationManager::getFunction(uint64_t address) {
 158         auto it = functions.find(address);
 159         if (it != functions.end())
 160                 return it->second;
 161         else
 162                 return NULL;
 163 }
 164
 165 std::map<uint64_t, Function*>::const_iterator InformationManager::beginFunctions() {
 166         return functions.begin();
 167 }
 168 std::map<uint64_t, Function*>::const_iterator InformationManager::endFunctions() {
 169         return functions.end();
 170 }
 171
 172
 173 /* *********************************
 174  * Accessors for the BasicBlocks map
 175  */
 176
 177 BasicBlock* InformationManager::getBasicBlock(uint64_t address) {
 178         auto it = blocks.find(address);
 179         if (it != blocks.end())
 180                 return it->second;
 181         else
 182                 return NULL;
 183 }
 184
 185 std::map<uint64_t, BasicBlock*>::const_iterator InformationManager::beginBasicBlocks() {
 186         return blocks.begin();
 187 }
 188 std::map<uint64_t, BasicBlock*>::const_iterator InformationManager::endBasicBlocks() {
 189         return blocks.end();
 190 }
 191
 192 /* *********************************
 193  * Accessors for the Comments map
 194  */
 195 std::pair<
 196         std::multimap<uint64_t, Comment*>::const_iterator,
 197         std::multimap<uint64_t, Comment*>::const_iterator>
 198 InformationManager::getComments(uint64_t address) {
 199         return comments.equal_range(address);
 200 }
 201
 202 std::multimap<uint64_t, Comment*>::const_iterator InformationManager::beginComments() {
 203         return comments.begin();
 204 }
 205 std::multimap<uint64_t, Comment*>::const_iterator InformationManager::endComments() {
 206         return comments.end();
 207 }
 208
 209 /* *********************************
 210  * Accessors for the Interpreter map
 211  */
 212
 213 Interpreter* InformationManager::getInterpreter(const std::string& name) {
 214         auto it = interpreters.find(name);
 215         if (it != interpreters.end())
 216                 return it->second;
 217         else
 218                 return NULL;
 219 }
 220
 221 std::map<std::string, Interpreter*>::const_iterator InformationManager::beginInterpreters() {
 222         return interpreters.begin();
 223 }
 224 std::map<std::string, Interpreter*>::const_iterator InformationManager::endInterpreters() {
 225         return interpreters.end();
 226 }
 227
 228
 229 /* ********************************
 230  * Factory methods for data classes
 231  */
 232
 233 Function* InformationManager::newFunction(uint64_t address) {
 234         Function* fun = new Function(address, false, this);
 235         functions.insert(std::make_pair(address, fun));
 236         return fun;
 237 }
 238
 239 Function* InformationManager::newDynamicFunction(uint64_t address) {
 240         Function* fun = new Function(address, true, this);
 241         functions.insert(std::make_pair(address, fun));
 242         return fun;
 243 }
 244
 245 BasicBlock* InformationManager::newBasicBlock(uint64_t address) {
 246         BasicBlock* block = new BasicBlock(address, this);
 247         blocks.insert(std::make_pair(address, block));
 248         return block;
 249 }
 250
 251 Comment* InformationManager::newGlobalComment(uint64_t address) {
 252         Comment* comment = new Comment(address, this);
 253         comments.insert(std::make_pair(address, comment));
 254         return comment;
 255 }
 256
 257 Comment* InformationManager::newLocalComment(uint64_t address, Function* f) {
 258         Comment* comment = new Comment(address, f, this);
 259         comments.insert(std::make_pair(address, comment));
 260         return comment;
 261 }
 262
 263 void InformationManager::finishFunction(Function* fun) {
 264         LOG4CXX_DEBUG(logger, "Finishing function " << fun->getName());
 265         for (auto b : fun->blocks()) {
 266                 BasicBlock* bl = b.second;
 267                 blocks.insert(std::make_pair(bl->getStartAddress(), bl));
 268         }
 269         NewFunctionEvent event(fun->getStartAddress(), fun);
 270         dispatch(&event);
 271 }
 272
 273 void InformationManager::finishBasicBlock(BasicBlock*) {
 274 }
 275
 276 void InformationManager::finishComment(Comment* c) {
 277         LOG4CXX_DEBUG(logger, "Finishing comment " << c->getAddress());
 278         ChangeCommentEvent event(c->getAddress(), c->getLocation(), c);
 279         dispatch(&event);
 280 }
 281
 282 void InformationManager::deleteFunction(Function* f) {
 283         functions.erase(f->getStartAddress());
 284         delete f;
 285 }
 286
 287 void InformationManager::deleteBasicBlock(BasicBlock* b) {
 288         blocks.erase(b->getStartAddress());
 289         delete b;
 290 }
 291
 292 void InformationManager::deleteComment(Comment* c) {
 293         auto range = comments.equal_range(c->getAddress());
 294         for (auto it = range.first; it != range.second; ++it) {
 295                 if (it->second == c) {
 296                         comments.erase(it);
 297                         break;
 298                 }
 299         }
 300         delete c;
 301 }