int main(int argc, char *argv[]) {
Diagnostics::initialize();
::mlog = Diagnostics::Facility("tool", Diagnostics::destination);
Diagnostics::mfacilities.insertAndAdjust(::mlog);
// Parse the command-line
Partitioner2::Engine engine;
std::vector<std::string> specimenNames = parseCommandLine(argc, argv, engine);
if (specimenNames.empty())
throw std::runtime_error("no specimen specified; see --help");
// Load specimen into memory
MemoryMap map = engine.loadSpecimens(specimenNames);
// Configure instruction semantics
Partitioner2::Partitioner partitioner = engine.createPartitioner();
Disassembler *disassembler = engine.obtainDisassembler();
const RegisterDictionary *regdict = disassembler->get_registers();
if (disassembler->dispatcher() == NULL)
throw std::runtime_error("no instruction semantics for this architecture");
BaseSemantics::RiscOperatorsPtr ops = InstructionSemantics2::ConcreteSemantics::RiscOperators::instance(regdict);
BaseSemantics::DispatcherPtr cpu = disassembler->dispatcher()->create(ops);
ConcreteSemantics::MemoryState::promote(ops->currentState()->memoryState())->memoryMap(map);
// Find starting address
rose_addr_t va = 0;
if (settings.startVa) {
va = *settings.startVa;
} else if (engine.isaName() == "coldfire") {
// Use the interrupt vector to initialize the stack pointer and instruction pointer.
uint32_t sp, ip;
if (4 != map.at(0).limit(4).read((uint8_t*)&sp).size())
throw std::runtime_error("cannot read stack pointer at address 0x00000000");
ops->writeRegister(disassembler->stackPointerRegister(), ops->number_(32, ByteOrder::be_to_host(sp)));
if (4 != map.at(4).limit(4).read((uint8_t*)&ip).size())
throw std::runtime_error("cannot read instruction pointer at address 0x00000004");
va = ByteOrder::be_to_host(ip);
} else if (!map.atOrAfter(0).require(MemoryMap::EXECUTABLE).next().assignTo(va)) {
throw std::runtime_error("no starting address specified and none marked executable");
}
ops->writeRegister(disassembler->instructionPointerRegister(), ops->number_(32, va));
// Execute
map.dump(::mlog[INFO]);
while (1) {
va = ops->readRegister(disassembler->instructionPointerRegister())->get_number();
SgAsmInstruction *insn = partitioner.instructionProvider()[va];
SAWYER_MESG(::mlog[TRACE]) <<unparseInstructionWithAddress(insn, NULL, regdict) <<"\n";
try {
cpu->processInstruction(insn);
} catch (const BaseSemantics::Exception &e) {
::mlog[WARN] <<e <<"\n";
}
}
// std::cout <<"Final state:\n";
// std::cout <<*ops->currentState();
}
int
main(int argc, char *argv[]) {
ROSE_INITIALIZE;
Diagnostics::initAndRegister(&::mlog, "tool");
// Parse command-line
P2::Engine engine;
Settings settings;
std::vector<std::string> specimen = parseCommandLine(argc, argv, engine, settings);
if (specimen.empty()) {
::mlog[FATAL] <<"no specimen supplied on command-line; see --help\n";
exit(1);
}
// Load specimen into ROSE's simulated memory
if (!engine.parseContainers(specimen.front())) {
::mlog[FATAL] <<"cannot parse specimen binary container\n";
exit(1);
}
Disassembler *disassembler = engine.obtainDisassembler();
if (!disassembler) {
::mlog[FATAL] <<"no disassembler for this architecture\n";
exit(1);
}
const RegisterDescriptor REG_IP = disassembler->instructionPointerRegister();
ASSERT_require2(REG_IP.is_valid(), "simulation must know what register serves as the instruction pointer");
// Single-step the specimen natively in a debugger and show each instruction.
BinaryDebugger debugger(specimen);
while (!debugger.isTerminated()) {
uint64_t ip = debugger.readRegister(REG_IP).toInteger();
uint8_t buf[16]; // 16 should be large enough for any instruction
size_t nBytes = debugger.readMemory(ip, sizeof buf, buf);
if (0 == nBytes) {
::mlog[ERROR] <<"cannot read memory at " <<StringUtility::addrToString(ip) <<"\n";
} else if (SgAsmInstruction *insn = disassembler->disassembleOne(buf, ip, nBytes, ip)) {
std::cout <<unparseInstructionWithAddress(insn) <<"\n";
} else {
::mlog[ERROR] <<"cannot disassemble instruction at " <<StringUtility::addrToString(ip) <<"\n";
}
debugger.singleStep();
}
std::cout <<debugger.howTerminated();
}
