static void DumpInput(const StringRef &Filename) {
OwningPtr<MemoryBuffer> Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
errs() << Filename << ": " << ec.message() << "\n";
return;
}
OwningPtr<ObjectFile> Obj(ObjectFile::createObjectFile(Buff.take()));
StringRef DebugInfoSection;
StringRef DebugAbbrevSection;
StringRef DebugLineSection;
StringRef DebugArangesSection;
StringRef DebugStringSection;
error_code ec;
for (ObjectFile::section_iterator i = Obj->begin_sections(),
e = Obj->end_sections();
i != e; i.increment(ec)) {
StringRef name;
i->getName(name);
StringRef data;
i->getContents(data);
if (name.startswith("__DWARF,"))
name = name.substr(8); // Skip "__DWARF," prefix.
name = name.substr(name.find_first_not_of("._")); // Skip . and _ prefixes.
if (name == "debug_info")
DebugInfoSection = data;
else if (name == "debug_abbrev")
DebugAbbrevSection = data;
else if (name == "debug_line")
DebugLineSection = data;
else if (name == "debug_aranges")
DebugArangesSection = data;
else if (name == "debug_str")
DebugStringSection = data;
}
OwningPtr<DIContext> dictx(DIContext::getDWARFContext(/*FIXME*/true,
DebugInfoSection,
DebugAbbrevSection,
DebugArangesSection,
DebugLineSection,
DebugStringSection));
if (Address == -1ULL) {
outs() << Filename
<< ":\tfile format " << Obj->getFileFormatName() << "\n\n";
// Dump the complete DWARF structure.
dictx->dump(outs());
} else {
// Print line info for the specified address.
DILineInfo dli = dictx->getLineInfoForAddress(Address);
outs() << (dli.getFileName() ? dli.getFileName() : "<unknown>") << ':'
<< dli.getLine() << ':' << dli.getColumn() << '\n';
}
}
static void DisassembleInput(const StringRef &Filename) {
OwningPtr<MemoryBuffer> Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
errs() << ToolName << ": " << Filename << ": " << ec.message() << "\n";
return;
}
OwningPtr<ObjectFile> Obj(ObjectFile::createObjectFile(Buff.take()));
const Target *TheTarget = GetTarget(Obj.get());
if (!TheTarget) {
// GetTarget prints out stuff.
return;
}
outs() << '\n';
outs() << Filename
<< ":\tfile format " << Obj->getFileFormatName() << "\n\n\n";
for (ObjectFile::section_iterator i = Obj->begin_sections(),
e = Obj->end_sections();
i != e; ++i) {
if (!i->isText())
continue;
outs() << "Disassembly of section " << i->getName() << ":\n\n";
// Set up disassembler.
OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createAsmInfo(TripleName));
if (!AsmInfo) {
errs() << "error: no assembly info for target " << TripleName << "\n";
return;
}
OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler());
if (!DisAsm) {
errs() << "error: no disassembler for target " << TripleName << "\n";
return;
}
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
AsmPrinterVariant, *AsmInfo));
if (!IP) {
errs() << "error: no instruction printer for target " << TripleName << '\n';
return;
}
StringRef Bytes = i->getContents();
StringRefMemoryObject memoryObject(Bytes);
uint64_t Size;
uint64_t Index;
for (Index = 0; Index < Bytes.size(); Index += Size) {
MCInst Inst;
# ifndef NDEBUG
raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
# else
raw_ostream &DebugOut = nulls();
# endif
if (DisAsm->getInstruction(Inst, Size, memoryObject, Index, DebugOut)) {
outs() << format("%8x:\t", i->getAddress() + Index);
DumpBytes(StringRef(Bytes.data() + Index, Size));
IP->printInst(&Inst, outs());
outs() << "\n";
} else {
errs() << ToolName << ": warning: invalid instruction encoding\n";
if (Size == 0)
Size = 1; // skip illegible bytes
}
}
}
}