LLVMDisassembler::LLVMDisassembler(const std::string& filename,
InformationManager* manager)
: Disassembler(filename, manager)
- , logger(log4cxx::Logger::getLogger("LLVMDisassembler"))
- , triple("unknown-unknown-unknown")
- , manager(manager)
+ , logger(log4cxx::Logger::getLogger("LLVMDisassembler"))
+ , triple("unknown-unknown-unknown")
+ , manager(manager)
{
- LOG4CXX_DEBUG(logger, "Handling file" << filename);
- auto result = createBinary(filename);
-
- error_code ec;
- if ((ec = result.getError())) {
- LOG4CXX_ERROR(logger, "Failed to load Binary" << ec.message());
- binary = NULL;
- return;
- }
-
- binary.reset(result.get());
-
- o = dyn_cast<ObjectFile>(binary.get());
-
- triple.setArch(Triple::ArchType(o->getArch()));
- std::string tripleName(triple.getTriple());
-
- LOG4CXX_INFO(logger, "Architecture " << tripleName);
-
-
- std::string es;
- target = TargetRegistry::lookupTarget("", triple, es);
- if (!target) {
- LOG4CXX_ERROR(logger, es);
- return;
- }
-
- LOG4CXX_INFO(logger, "Target " << target->getName());
-
- MRI.reset(target->createMCRegInfo(tripleName));
- if (!MRI) {
- LOG4CXX_ERROR(logger, "no register info for target " << tripleName);
- return;
- }
-
- // Set up disassembler.
- AsmInfo.reset(target->createMCAsmInfo(*MRI, tripleName));
- if (!AsmInfo) {
- LOG4CXX_ERROR(logger, "no assembly info for target " << tripleName);
- return;
- }
-
- STI.reset(target->createMCSubtargetInfo(tripleName, "", ""));
- if (!STI) {
- LOG4CXX_ERROR(logger, "no subtarget info for target " << tripleName);
- return;
- }
-
- MII.reset(target->createMCInstrInfo());
- if (!MII) {
- LOG4CXX_ERROR(logger, "no instruction info for target " << tripleName);
- return;
- }
-
- MOFI.reset(new MCObjectFileInfo);
- MCContext Ctx(AsmInfo.get(), MRI.get(), MOFI.get());
-
- DisAsm.reset(target->createMCDisassembler(*STI, Ctx));
- if (!DisAsm) {
- LOG4CXX_ERROR(logger, "no disassembler for target " << tripleName);
- return;
- }
- RelInfo.reset(
- target->createMCRelocationInfo(tripleName, Ctx));
- if (RelInfo) {
- Symzer.reset(
- MCObjectSymbolizer::createObjectSymbolizer(Ctx, std::move(RelInfo), o));
- if (Symzer)
- DisAsm->setSymbolizer(std::move(Symzer));
- }
- RelInfo.release();
- Symzer.release();
-
- MIA.reset(target->createMCInstrAnalysis(MII.get()));
- if (!MIA) {
- LOG4CXX_ERROR(logger, "no instruction analysis for target " << tripleName);
- return;
- }
-
- int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
- IP.reset(target->createMCInstPrinter(AsmPrinterVariant, *AsmInfo, *MII, *MRI, *STI));
- if (!IP) {
- LOG4CXX_ERROR(logger, "no instruction printer for target " << tripleName);
- return;
- }
-
- IP->setPrintImmHex(llvm::HexStyle::C);
- IP->setPrintImmHex(true);
-
- std::unique_ptr<MCObjectDisassembler> OD(
- new MCObjectDisassembler(*o, *DisAsm, *MIA));
- Mod.reset(OD->buildModule(false));
+ LOG4CXX_DEBUG(logger, "Handling file" << filename);
+ auto result = createBinary(filename);
+
+ error_code ec;
+ if ((ec = result.getError())) {
+ LOG4CXX_ERROR(logger, "Failed to load Binary" << ec.message());
+ binary = NULL;
+ return;
+ }
+
+ binary.reset(result.get());
+
+ o = dyn_cast<ObjectFile>(binary.get());
+
+ triple.setArch(Triple::ArchType(o->getArch()));
+ std::string tripleName(triple.getTriple());
+
+ LOG4CXX_INFO(logger, "Architecture " << tripleName);
+
+
+ std::string es;
+ target = TargetRegistry::lookupTarget("", triple, es);
+ if (!target) {
+ LOG4CXX_ERROR(logger, es);
+ return;
+ }
+
+ LOG4CXX_INFO(logger, "Target " << target->getName());
+
+ MRI.reset(target->createMCRegInfo(tripleName));
+ if (!MRI) {
+ LOG4CXX_ERROR(logger, "no register info for target " << tripleName);
+ return;
+ }
+
+ // Set up disassembler.
+ AsmInfo.reset(target->createMCAsmInfo(*MRI, tripleName));
+ if (!AsmInfo) {
+ LOG4CXX_ERROR(logger, "no assembly info for target " << tripleName);
+ return;
+ }
+
+ STI.reset(target->createMCSubtargetInfo(tripleName, "", ""));
+ if (!STI) {
+ LOG4CXX_ERROR(logger, "no subtarget info for target " << tripleName);
+ return;
+ }
+
+ MII.reset(target->createMCInstrInfo());
+ if (!MII) {
+ LOG4CXX_ERROR(logger, "no instruction info for target " << tripleName);
+ return;
+ }
+
+ MOFI.reset(new MCObjectFileInfo);
+ MCContext Ctx(AsmInfo.get(), MRI.get(), MOFI.get());
+
+ DisAsm.reset(target->createMCDisassembler(*STI, Ctx));
+ if (!DisAsm) {
+ LOG4CXX_ERROR(logger, "no disassembler for target " << tripleName);
+ return;
+ }
+ RelInfo.reset(
+ target->createMCRelocationInfo(tripleName, Ctx));
+ if (RelInfo) {
+ Symzer.reset(
+ MCObjectSymbolizer::createObjectSymbolizer(Ctx, std::move(RelInfo), o));
+ if (Symzer)
+ DisAsm->setSymbolizer(std::move(Symzer));
+ }
+ RelInfo.release();
+ Symzer.release();
+
+ MIA.reset(target->createMCInstrAnalysis(MII.get()));
+ if (!MIA) {
+ LOG4CXX_ERROR(logger, "no instruction analysis for target " << tripleName);
+ return;
+ }
+
+ int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
+ IP.reset(target->createMCInstPrinter(AsmPrinterVariant, *AsmInfo, *MII, *MRI, *STI));
+ if (!IP) {
+ LOG4CXX_ERROR(logger, "no instruction printer for target " << tripleName);
+ return;
+ }
+
+ IP->setPrintImmHex(llvm::HexStyle::C);
+ IP->setPrintImmHex(true);
+
+ std::unique_ptr<MCObjectDisassembler> OD(
+ new MCObjectDisassembler(*o, *DisAsm, *MIA));
+ Mod.reset(OD->buildModule(false));
}
void LLVMDisassembler::start() {
- readSymbols();
- readSections();
- disassemble();
+ readSymbols();
+ readSections();
+ disassemble();
}
LLVMDisassembler::~LLVMDisassembler() {
- std::for_each(functions.begin(), functions.end(),
- [](std::pair<uint64_t,LLVMFunction*> it) {
- delete it.second;
- });
- std::for_each(blocks.begin(), blocks.end(),
- [](std::pair<uint64_t, LLVMBasicBlock*> it) {
- delete it.second;
- });
+ std::for_each(functions.begin(), functions.end(),
+ [](std::pair<uint64_t,LLVMFunction*> it) {
+ delete it.second;
+ });
+ std::for_each(blocks.begin(), blocks.end(),
+ [](std::pair<uint64_t, LLVMBasicBlock*> it) {
+ delete it.second;
+ });
}
Function* LLVMDisassembler::disassembleFunctionAt(uint64_t address, const std::string& name) {
- SectionRef text_section = sections[".text"];
+ SectionRef text_section = sections[".text"];
uint64_t base_address, size;
text_section.getAddress(base_address);
text_section.getSize(size);
if (address < base_address ||
- address >= base_address + size) {
+ address >= base_address + size) {
return NULL;
}
- if (functions.find(address) != functions.end()) {
- return functions[address];
- }
+ if (functions.find(address) != functions.end()) {
+ return functions[address];
+ }
- LLVMFunction * function;
- if (name == "") {
- std::stringstream s;
- s << "<Unnamed 0x" << std::hex << address << ">";
- function = new LLVMFunction(s.str(), address);
- } else {
- function = new LLVMFunction(name, address);
- }
- functions.insert(std::make_pair(address, function));
+ LLVMFunction * function;
+ if (name == "") {
+ std::stringstream s;
+ s << "<Unnamed 0x" << std::hex << address << ">";
+ function = new LLVMFunction(s.str(), address);
+ } else {
+ function = new LLVMFunction(name, address);
+ }
+ functions.insert(std::make_pair(address, function));
- disassembleFunction(function);
+ disassembleFunction(function);
- return function;
+ return function;
}
void LLVMDisassembler::disassembleFunction(LLVMFunction* function) {
- std::stack<LLVMBasicBlock*> remaining_blocks;
- SectionRef text_section = sections[".text"];
- StringRef bytes;
- text_section.getContents(bytes);
- StringRefMemoryObject ref(bytes);
-
- LOG4CXX_DEBUG(logger, "Handling function " << function->getName());
-
- LLVMBasicBlock * block = new LLVMBasicBlock(function->getStartAddress(), this);
- remaining_blocks.push(block);
- blocks.insert(std::make_pair(block->getStartAddress(), block));
-
- while (remaining_blocks.size()) {
- LLVMBasicBlock * current_block = remaining_blocks.top();
- remaining_blocks.pop();
-
- LOG4CXX_DEBUG(logger, "Handling Block starting at " << std::hex << current_block->getStartAddress());
-
- uint64_t inst_size;
- uint64_t base_address;
- text_section.getAddress(base_address);
- uint64_t current_address = current_block->getStartAddress() - base_address;
- while(true) {
- MCInst inst;
- std::string buf;
- llvm::raw_string_ostream s(buf);
-
- if(llvm::MCDisassembler::Success ==
- DisAsm->getInstruction(inst, inst_size, ref, current_address, nulls(), nulls())) {
- uint64_t jmptarget;
-
- if (MIA->evaluateBranch(inst, current_address, inst_size, jmptarget)) {
- jmptarget += base_address;
- if (!MIA->isIndirectBranch(inst)) {
- if (MIA->isCall(inst)) {
- if (functions.find(jmptarget) == functions.end()) {
- disassembleFunctionAt(jmptarget);
- }
- } else {
- current_block->setNextBlock(0, jmptarget);
- if (blocks.find(jmptarget) == blocks.end()) {
- LLVMBasicBlock * block = new LLVMBasicBlock(jmptarget, this);
- blocks.insert(std::make_pair(block->getStartAddress(), block));
- remaining_blocks.push(block);
- }
- if (MIA->isConditionalBranch(inst)) {
- jmptarget = base_address + current_address + inst_size;
- current_block->setNextBlock(1, jmptarget);
- if (blocks.find(jmptarget) == blocks.end()) {
- LLVMBasicBlock * block = new LLVMBasicBlock(jmptarget, this);
- blocks.insert(std::make_pair(block->getStartAddress(), block));
- remaining_blocks.push(block);
- }
- }
- }
- }
- }
- } else {
- inst_size = 0;
- }
-
-
- if (inst_size == 0 || MIA->isTerminator(inst) || MIA->isBranch(inst)) {
- current_block->setEndAddress(current_address + base_address + inst_size);
- LOG4CXX_DEBUG(logger, "Finished Block at " << std::hex <<
- current_block->getEndAddress());
- break;
- }
- current_address += inst_size;
- }
- }
- LOG4CXX_DEBUG(logger, "Finished function " << function->getName());
- manager->signal_new_function(function);
+ std::stack<LLVMBasicBlock*> remaining_blocks;
+ SectionRef text_section = sections[".text"];
+ StringRef bytes;
+ text_section.getContents(bytes);
+ StringRefMemoryObject ref(bytes);
+
+ LOG4CXX_DEBUG(logger, "Handling function " << function->getName());
+
+ LLVMBasicBlock * block = new LLVMBasicBlock(function->getStartAddress(), this);
+ remaining_blocks.push(block);
+ blocks.insert(std::make_pair(block->getStartAddress(), block));
+
+ while (remaining_blocks.size()) {
+ LLVMBasicBlock * current_block = remaining_blocks.top();
+ remaining_blocks.pop();
+
+ LOG4CXX_DEBUG(logger, "Handling Block starting at " << std::hex << current_block->getStartAddress());
+
+ uint64_t inst_size;
+ uint64_t base_address;
+ text_section.getAddress(base_address);
+ uint64_t current_address = current_block->getStartAddress() - base_address;
+ while(true) {
+ MCInst inst;
+ std::string buf;
+ llvm::raw_string_ostream s(buf);
+
+ if(llvm::MCDisassembler::Success ==
+ DisAsm->getInstruction(inst, inst_size, ref, current_address, nulls(), nulls())) {
+ uint64_t jmptarget;
+
+ if (MIA->evaluateBranch(inst, current_address, inst_size, jmptarget)) {
+ jmptarget += base_address;
+ if (!MIA->isIndirectBranch(inst)) {
+ if (MIA->isCall(inst)) {
+ if (functions.find(jmptarget) == functions.end()) {
+ disassembleFunctionAt(jmptarget);
+ }
+ } else {
+ current_block->setNextBlock(0, jmptarget);
+ if (blocks.find(jmptarget) == blocks.end()) {
+ LLVMBasicBlock * block = new LLVMBasicBlock(jmptarget, this);
+ blocks.insert(std::make_pair(block->getStartAddress(), block));
+ remaining_blocks.push(block);
+ }
+ if (MIA->isConditionalBranch(inst)) {
+ jmptarget = base_address + current_address + inst_size;
+ current_block->setNextBlock(1, jmptarget);
+ if (blocks.find(jmptarget) == blocks.end()) {
+ LLVMBasicBlock * block = new LLVMBasicBlock(jmptarget, this);
+ blocks.insert(std::make_pair(block->getStartAddress(), block));
+ remaining_blocks.push(block);
+ }
+ }
+ }
+ }
+ }
+ } else {
+ inst_size = 0;
+ }
+
+
+ if (inst_size == 0 || MIA->isTerminator(inst) || MIA->isBranch(inst)) {
+ current_block->setEndAddress(current_address + base_address + inst_size);
+ LOG4CXX_DEBUG(logger, "Finished Block at " << std::hex <<
+ current_block->getEndAddress());
+ break;
+ }
+ current_address += inst_size;
+ }
+ }
+ LOG4CXX_DEBUG(logger, "Finished function " << function->getName());
+ manager->signal_new_function(function);
}
void LLVMDisassembler::disassemble() {
- SectionRef text_section = sections[".text"];
- std::vector<LLVMFunction*> remaining_functions;
-
- // Assume all function symbols actually start a real function
- for (auto x = symbols.begin(); x != symbols.end(); ++x) {
- uint64_t result;
- bool contains;
- SymbolRef::Type symbol_type;
-
-
- if (text_section.containsSymbol(x->second, contains) || !contains)
- continue;
-
- if (x->second.getType(symbol_type)
- || SymbolRef::ST_Function != symbol_type)
- continue;
-
- if (!x->second.getAddress(result)) {
- LLVMFunction * fun = new LLVMFunction(x->first, result);
- remaining_functions.push_back(fun);
- functions.insert(std::make_pair(result, fun));
- LOG4CXX_DEBUG(logger, "Disasembling " << x->first);
- }
- }
-
- for (LLVMFunction* function : remaining_functions) {
- disassembleFunction(function);
- }
-
- if (binary->isELF()) {
- bool is64bit = (binary->getData()[4] == 0x02);
-
- uint64_t entry(0);
- for (int i(0); i < (is64bit? 8 : 4); ++i) {
- if (binary->isLittleEndian()) {
- entry |= (unsigned int)((unsigned char)binary->getData()[0x18 + i]) << 8*i;
- } else {
- entry = entry << 8;
- entry |= (unsigned char)binary->getData()[0x18 + i];
- }
- }
- LOG4CXX_DEBUG(logger, "Adding entry at: " << std::hex << entry);
- std::stringstream s;
- s << "<_start 0x" << std::hex << entry << ">";
-
- disassembleFunctionAt(entry, s.str());
- }
-
- if (functions.empty()) {
- uint64_t text_entry;
- text_section.getAddress(text_entry);
- LOG4CXX_INFO(logger, "No Symbols found, starting at the beginning of the text segment");
- disassembleFunctionAt(text_entry);
- }
-
- splitBlocks();
+ SectionRef text_section = sections[".text"];
+ std::vector<LLVMFunction*> remaining_functions;
+
+ // Assume all function symbols actually start a real function
+ for (auto x = symbols.begin(); x != symbols.end(); ++x) {
+ uint64_t result;
+ bool contains;
+ SymbolRef::Type symbol_type;
+
+
+ if (text_section.containsSymbol(x->second, contains) || !contains)
+ continue;
+
+ if (x->second.getType(symbol_type)
+ || SymbolRef::ST_Function != symbol_type)
+ continue;
+
+ if (!x->second.getAddress(result)) {
+ LLVMFunction * fun = new LLVMFunction(x->first, result);
+ remaining_functions.push_back(fun);
+ functions.insert(std::make_pair(result, fun));
+ LOG4CXX_DEBUG(logger, "Disasembling " << x->first);
+ }
+ }
+
+ for (LLVMFunction* function : remaining_functions) {
+ disassembleFunction(function);
+ }
+
+ if (binary->isELF()) {
+ bool is64bit = (binary->getData()[4] == 0x02);
+
+ uint64_t entry(0);
+ for (int i(0); i < (is64bit? 8 : 4); ++i) {
+ if (binary->isLittleEndian()) {
+ entry |= (unsigned int)((unsigned char)binary->getData()[0x18 + i]) << 8*i;
+ } else {
+ entry = entry << 8;
+ entry |= (unsigned char)binary->getData()[0x18 + i];
+ }
+ }
+ LOG4CXX_DEBUG(logger, "Adding entry at: " << std::hex << entry);
+ std::stringstream s;
+ s << "<_start 0x" << std::hex << entry << ">";
+
+ disassembleFunctionAt(entry, s.str());
+ }
+
+ if (functions.empty()) {
+ uint64_t text_entry;
+ text_section.getAddress(text_entry);
+ LOG4CXX_INFO(logger, "No Symbols found, starting at the beginning of the text segment");
+ disassembleFunctionAt(text_entry);
+ }
+
+ splitBlocks();
}
void LLVMDisassembler::splitBlocks() {
- SectionRef text_section = sections[".text"];
- StringRef bytes;
- text_section.getContents(bytes);
- StringRefMemoryObject ref(bytes);
-
- // Split blocks where jumps are going inside the block
- for (auto it = blocks.begin(); it != blocks.end(); ++it) {
- LLVMBasicBlock * current_block = it->second;
- uint64_t inst_size;
- uint64_t base_address;
- text_section.getAddress(base_address);
- uint64_t current_address = current_block->getStartAddress() - base_address;
- while(current_block->getEndAddress() - base_address > current_address) {
- MCInst inst;
- std::string buf;
- llvm::raw_string_ostream s(buf);
-
- if(llvm::MCDisassembler::Success ==
- DisAsm->getInstruction(inst, inst_size, ref, current_address, nulls(), nulls())) {
- auto other = blocks.find(current_address + inst_size + base_address);
-
- if (other != blocks.end()) {
- uint64_t endaddress = current_address + inst_size + base_address;
- if (endaddress != current_block->getEndAddress()) {
- LOG4CXX_DEBUG(logger, "Shortening block starting at "
- << std::hex
- << current_block->getStartAddress()
- << " now ending at "
- << other->first);
- current_block->setEndAddress(endaddress);
- current_block->setNextBlock(0, other->first);
- current_block->setNextBlock(1, 0);
- }
- }
- } else {
- inst_size = 1;
- }
- current_address += inst_size;
- }
- }
+ SectionRef text_section = sections[".text"];
+ StringRef bytes;
+ text_section.getContents(bytes);
+ StringRefMemoryObject ref(bytes);
+
+ // Split blocks where jumps are going inside the block
+ for (auto it = blocks.begin(); it != blocks.end(); ++it) {
+ LLVMBasicBlock * current_block = it->second;
+ uint64_t inst_size;
+ uint64_t base_address;
+ text_section.getAddress(base_address);
+ uint64_t current_address = current_block->getStartAddress() - base_address;
+ while(current_block->getEndAddress() - base_address > current_address) {
+ MCInst inst;
+ std::string buf;
+ llvm::raw_string_ostream s(buf);
+
+ if(llvm::MCDisassembler::Success ==
+ DisAsm->getInstruction(inst, inst_size, ref, current_address, nulls(), nulls())) {
+ auto other = blocks.find(current_address + inst_size + base_address);
+
+ if (other != blocks.end()) {
+ uint64_t endaddress = current_address + inst_size + base_address;
+ if (endaddress != current_block->getEndAddress()) {
+ LOG4CXX_DEBUG(logger, "Shortening block starting at "
+ << std::hex
+ << current_block->getStartAddress()
+ << " now ending at "
+ << other->first);
+ current_block->setEndAddress(endaddress);
+ current_block->setNextBlock(0, other->first);
+ current_block->setNextBlock(1, 0);
+ }
+ }
+ } else {
+ inst_size = 1;
+ }
+ current_address += inst_size;
+ }
+ }
}
void LLVMDisassembler::readSymbols() {
- error_code ec;
- symbol_iterator si(o->symbol_begin()), se(o->symbol_end());
- for (; si != se; ++si) {
- StringRef name;
- if ((ec = si->getName(name))) {
- LOG4CXX_ERROR(logger, ec.message());
- break;
- }
- LOG4CXX_DEBUG(logger, "Added symbol " << name.str());
- symbols.insert(make_pair(name.str(), *si));
- }
+ error_code ec;
+ symbol_iterator si(o->symbol_begin()), se(o->symbol_end());
+ for (; si != se; ++si) {
+ StringRef name;
+ if ((ec = si->getName(name))) {
+ LOG4CXX_ERROR(logger, ec.message());
+ break;
+ }
+ LOG4CXX_DEBUG(logger, "Added symbol " << name.str());
+ symbols.insert(make_pair(name.str(), *si));
+ }
}
void LLVMDisassembler::readSections() {
- error_code ec;
- section_iterator i(o->section_begin()), e(o->section_end());
- for (; i != e; ++i) {
- StringRef name;
- if ((ec = i->getName(name))) {
- LOG4CXX_ERROR(logger, ec.message());
- break;
- }
- LOG4CXX_DEBUG(logger, "Added section " << name.str());
- sections.insert(make_pair(name.str(), *i));
- }
+ error_code ec;
+ section_iterator i(o->section_begin()), e(o->section_end());
+ for (; i != e; ++i) {
+ StringRef name;
+ if ((ec = i->getName(name))) {
+ LOG4CXX_ERROR(logger, ec.message());
+ break;
+ }
+ LOG4CXX_DEBUG(logger, "Added section " << name.str());
+ sections.insert(make_pair(name.str(), *i));
+ }
}
void LLVMDisassembler::forEachFunction(std::function<void (uint64_t, Function*)> callback) {
- std::for_each(functions.begin(), functions.end(),
- [&](std::pair<uint64_t, LLVMFunction*> x) {
- callback(x.first, x.second);
- });
+ std::for_each(functions.begin(), functions.end(),
+ [&](std::pair<uint64_t, LLVMFunction*> x) {
+ callback(x.first, x.second);
+ });
}
void LLVMDisassembler::printEachInstruction(uint64_t start, uint64_t end,
- std::function<void (uint8_t*, size_t, const std::string&)> fun) {
- SectionRef text_section = sections[".text"];
- uint64_t base_address;
- text_section.getAddress(base_address);
- uint64_t current_address = start - base_address;
-
- StringRef bytes;
- text_section.getContents(bytes);
- StringRefMemoryObject ref(bytes);
-
- while (current_address < end - base_address) {
- uint64_t inst_size;
- MCInst inst;
+ std::function<void (uint8_t*, size_t, const std::string&)> fun) {
+ SectionRef text_section = sections[".text"];
+ uint64_t base_address;
+ text_section.getAddress(base_address);
+ uint64_t current_address = start - base_address;
+
+ StringRef bytes;
+ text_section.getContents(bytes);
+ StringRefMemoryObject ref(bytes);
+
+ while (current_address < end - base_address) {
+ uint64_t inst_size;
+ MCInst inst;
std::string buf;
llvm::raw_string_ostream s(buf);
- if(llvm::MCDisassembler::Success ==
- DisAsm->getInstruction(inst, inst_size, ref, current_address, nulls(), nulls())) {
+ if(llvm::MCDisassembler::Success ==
+ DisAsm->getInstruction(inst, inst_size, ref, current_address, nulls(), nulls())) {
- uint8_t bytes[inst_size+2];
- ref.readBytes(current_address, inst_size, bytes);
+ uint8_t bytes[inst_size+2];
+ ref.readBytes(current_address, inst_size, bytes);
uint64_t jmptarget;
if (MIA->evaluateBranch(inst, current_address, inst_size, jmptarget)) {
IP->printInst(&inst, s, "");
fun(bytes, inst_size, s.str());
- } else {
+ } else {
LOG4CXX_WARN(logger, "Invalid byte at" << std::hex << current_address + base_address);
fun(NULL, 0, "Invalid Byte");
inst_size = 1;
}
current_address += inst_size;
- }
+ }
}
#include "CFGScene.hxx"
void CFGScene::drawBackground(QPainter* painter, const QRectF & rect) {
- QGraphicsScene::drawBackground(painter, rect);
+ QGraphicsScene::drawBackground(painter, rect);
- spaceWidgets();
+ spaceWidgets();
- for (BasicBlockWidget * widget : widgets) {
+ for (BasicBlockWidget * widget : widgets) {
QPointF kopf = widget->getEntry();
- painter->setPen(QColor(0x00, 0xff, 0x00, 0xff));
- painter->drawLine(kopf, kopf - QPointF(0, 20));
+ painter->setPen(QColor(0x00, 0xff, 0x00, 0xff));
+ painter->drawLine(kopf, kopf - QPointF(0, 20));
- auto tails = widget->getExits();
- auto next = widget->getNext();
- if (NULL != next[0]) {
- if (NULL != next[1]) {
- painter->setPen(QColor(0xff, 0x00, 0x00, 0xff));
- painter->drawLine(std::get<0>(tails), std::get<0>(tails) + QPointF(0, 20));
- drawLine(painter, widget, next[1], -1);
+ auto tails = widget->getExits();
+ auto next = widget->getNext();
+ if (NULL != next[0]) {
+ if (NULL != next[1]) {
+ painter->setPen(QColor(0xff, 0x00, 0x00, 0xff));
+ painter->drawLine(std::get<0>(tails), std::get<0>(tails) + QPointF(0, 20));
+ drawLine(painter, widget, next[1], -1);
- painter->setPen(QColor(0x00, 0xff, 0x00, 0xff));
- painter->drawLine(std::get<2>(tails), std::get<2>(tails) + QPointF(0, 20));
- drawLine(painter, widget, next[0], 1);
- } else {
- painter->setPen(QColor(0x00, 0x00, 0x00, 0xff));
- painter->drawLine(std::get<1>(tails), std::get<1>(tails) + QPointF(0, 20));
- drawLine(painter, widget, next[0], 0);
- }
- }
- }
+ painter->setPen(QColor(0x00, 0xff, 0x00, 0xff));
+ painter->drawLine(std::get<2>(tails), std::get<2>(tails) + QPointF(0, 20));
+ drawLine(painter, widget, next[0], 1);
+ } else {
+ painter->setPen(QColor(0x00, 0x00, 0x00, 0xff));
+ painter->drawLine(std::get<1>(tails), std::get<1>(tails) + QPointF(0, 20));
+ drawLine(painter, widget, next[0], 0);
+ }
+ }
+ }
}
void CFGScene::drawLine(QPainter* painter, BasicBlockWidget * from, BasicBlockWidget * to, int8_t side) {
QPointF from_p = from->getExits()[side+1] + QPointF(0, 20);
QPointF to_p = to->getEntry() - QPointF(0, 20);
- if ((to_p - from_p).y() > 0) {
+ if ((to_p - from_p).y() > 0) {
/* Forward Edge */
- QPointF angle1(from_p + QPointF(0, (to_p - from_p).y()));
- painter->drawLine(from_p, angle1);
- painter->drawLine(angle1, to_p);
- } else {
+ QPointF angle1(from_p + QPointF(0, (to_p - from_p).y()));
+ painter->drawLine(from_p, angle1);
+ painter->drawLine(angle1, to_p);
+ } else {
/* Backward Edge */
QRectF from_r(from->boundingRect()), to_r(to->boundingRect());
from_r.moveTo(from->scenePos());
}
void CFGScene::spaceWidgets() {
- bool changed = false;
- do {
- changed = false;
- for (BasicBlockWidget * widget : widgets) {
- QPointF out(std::get<0>(widget->getExits()));
- BasicBlockWidget ** next = widget->getNext();
+ bool changed = false;
+ do {
+ changed = false;
+ for (BasicBlockWidget * widget : widgets) {
+ QPointF out(std::get<0>(widget->getExits()));
+ BasicBlockWidget ** next = widget->getNext();
- if (NULL != next[0]
- && (next[0]->getEntry() - widget->getEntry()).y() > 0
- && (next[0]->getEntry() - out).y() < 50) {
- next[0]->moveBy(0, 1);
- changed = true;
- }
- if (NULL != next[1]
- && (next[1]->getEntry() - widget->getEntry()).y() > 0
- && (next[1]->getEntry() - out).y() < 50) {
- next[1]->moveBy(0, 1);
- changed = true;
- }
- }
- } while (changed);
+ if (NULL != next[0]
+ && (next[0]->getEntry() - widget->getEntry()).y() > 0
+ && (next[0]->getEntry() - out).y() < 50) {
+ next[0]->moveBy(0, 1);
+ changed = true;
+ }
+ if (NULL != next[1]
+ && (next[1]->getEntry() - widget->getEntry()).y() > 0
+ && (next[1]->getEntry() - out).y() < 50) {
+ next[1]->moveBy(0, 1);
+ changed = true;
+ }
+ }
+ } while (changed);
- for (BasicBlockWidget * widget : widgets) {
- QRectF relevantRect = widget->boundingRect();
- relevantRect.moveTo(widget->scenePos());
- relevantRect.adjust(-20, -20, 20, 20);
- for (QGraphicsItem * item : items(relevantRect)) {
- if (item == widget) continue;
- QRectF itemrect = item->boundingRect();
- itemrect.moveTo(item->scenePos());
- while (relevantRect.intersects(itemrect)) {
- if (widget->scenePos().x() > item->scenePos().x()) {
- widget->moveBy(1, 0);
- relevantRect.moveTo(widget->scenePos());
- } else {
- item->moveBy(1, 0);
- itemrect.moveTo(item->scenePos());
- }
- }
- }
- }
+ for (BasicBlockWidget * widget : widgets) {
+ QRectF relevantRect = widget->boundingRect();
+ relevantRect.moveTo(widget->scenePos());
+ relevantRect.adjust(-20, -20, 20, 20);
+ for (QGraphicsItem * item : items(relevantRect)) {
+ if (item == widget) continue;
+ QRectF itemrect = item->boundingRect();
+ itemrect.moveTo(item->scenePos());
+ while (relevantRect.intersects(itemrect)) {
+ if (widget->scenePos().x() > item->scenePos().x()) {
+ widget->moveBy(1, 0);
+ relevantRect.moveTo(widget->scenePos());
+ } else {
+ item->moveBy(1, 0);
+ itemrect.moveTo(item->scenePos());
+ }
+ }
+ }
+ }
}
projects / frida / frida.git / commitdiff