//
//===----------------------------------------------------------------------===//
+#include "llvm-objdump.h"
#include "MCFunction.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"
using namespace llvm;
using namespace object;
-namespace {
- cl::list<std::string>
- InputFilenames(cl::Positional, cl::desc("<input object files>"),
- cl::ZeroOrMore);
+static cl::list<std::string>
+InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore);
- cl::opt<bool>
- Disassemble("disassemble",
- cl::desc("Display assembler mnemonics for the machine instructions"));
- cl::alias
- Disassembled("d", cl::desc("Alias for --disassemble"),
- cl::aliasopt(Disassemble));
+static cl::opt<bool>
+Disassemble("disassemble",
+ cl::desc("Display assembler mnemonics for the machine instructions"));
+static cl::alias
+Disassembled("d", cl::desc("Alias for --disassemble"),
+ cl::aliasopt(Disassemble));
- cl::opt<bool>
- CFG("cfg", cl::desc("Create a CFG for every symbol in the object file and"
- "write it to a graphviz file"));
+static cl::opt<bool>
+MachO("macho", cl::desc("Use MachO specific object file parser"));
+static cl::alias
+MachOm("m", cl::desc("Alias for --macho"), cl::aliasopt(MachO));
- cl::opt<std::string>
- TripleName("triple", cl::desc("Target triple to disassemble for, "
- "see -version for available targets"));
+cl::opt<std::string>
+llvm::TripleName("triple", cl::desc("Target triple to disassemble for, "
+ "see -version for available targets"));
- cl::opt<std::string>
- ArchName("arch", cl::desc("Target arch to disassemble for, "
- "see -version for available targets"));
+cl::opt<std::string>
+llvm::ArchName("arch", cl::desc("Target arch to disassemble for, "
+ "see -version for available targets"));
- StringRef ToolName;
+static StringRef ToolName;
- bool error(error_code ec) {
- if (!ec) return false;
+static bool error(error_code ec) {
+ if (!ec) return false;
- outs() << ToolName << ": error reading file: " << ec.message() << ".\n";
- outs().flush();
- return true;
- }
+ outs() << ToolName << ": error reading file: " << ec.message() << ".\n";
+ outs().flush();
+ return true;
}
static const Target *GetTarget(const ObjectFile *Obj = NULL) {
return 0;
}
-namespace {
-class StringRefMemoryObject : public MemoryObject {
-private:
- StringRef Bytes;
-public:
- StringRefMemoryObject(StringRef bytes) : Bytes(bytes) {}
-
- uint64_t getBase() const { return 0; }
- uint64_t getExtent() const { return Bytes.size(); }
-
- int readByte(uint64_t Addr, uint8_t *Byte) const {
- if (Addr >= getExtent())
- return -1;
- *Byte = Bytes[Addr];
- return 0;
- }
-};
-}
-
-static void DumpBytes(StringRef bytes) {
- static char hex_rep[] = "0123456789abcdef";
+void llvm::DumpBytes(StringRef bytes) {
+ static const char hex_rep[] = "0123456789abcdef";
// FIXME: The real way to do this is to figure out the longest instruction
// and align to that size before printing. I'll fix this when I get
// around to outputting relocations.
outs() << output;
}
-static void DisassembleInput(const StringRef &Filename) {
+void llvm::DisassembleInputLibObject(StringRef Filename) {
OwningPtr<MemoryBuffer> Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
<< ":\tfile format " << Obj->getFileFormatName() << "\n\n";
error_code ec;
- for (ObjectFile::section_iterator i = Obj->begin_sections(),
+ for (section_iterator i = Obj->begin_sections(),
e = Obj->end_sections();
i != e; i.increment(ec)) {
if (error(ec)) break;
// Make a list of all the symbols in this section.
std::vector<std::pair<uint64_t, StringRef> > Symbols;
- for (ObjectFile::symbol_iterator si = Obj->begin_symbols(),
+ for (symbol_iterator si = Obj->begin_symbols(),
se = Obj->end_symbols();
si != se; si.increment(ec)) {
bool contains;
if (!error(i->containsSymbol(*si, contains)) && contains) {
uint64_t Address;
- if (error(si->getAddress(Address))) break;
+ if (error(si->getOffset(Address))) break;
StringRef Name;
if (error(si->getName(Name))) break;
Symbols.push_back(std::make_pair(Address, Name));
return;
}
- OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler());
+ OwningPtr<const MCSubtargetInfo> STI(TheTarget->createMCSubtargetInfo(TripleName, "", ""));
+
+ if (!STI) {
+ errs() << "error: no subtarget info for target " << TripleName << "\n";
+ return;
+ }
+
+ OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI));
if (!DisAsm) {
errs() << "error: no disassembler for target " << TripleName << "\n";
return;
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
- AsmPrinterVariant, *AsmInfo));
+ AsmPrinterVariant, *AsmInfo, *STI));
if (!IP) {
errs() << "error: no instruction printer for target " << TripleName << '\n';
return;
raw_ostream &DebugOut = nulls();
#endif
- if (!CFG) {
- for (Index = Start; Index < End; Index += Size) {
- MCInst Inst;
- if (DisAsm->getInstruction(Inst, Size, memoryObject, Index,
- DebugOut)) {
- uint64_t addr;
- if (error(i->getAddress(addr))) break;
- outs() << format("%8x:\t", addr + 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
- }
- }
-
- } else {
- // Create CFG and use it for disassembly.
- MCFunction f =
- MCFunction::createFunctionFromMC(Symbols[si].second, DisAsm.get(),
- memoryObject, Start, End,
- InstrAnalysis.get(), DebugOut);
-
- for (MCFunction::iterator fi = f.begin(), fe = f.end(); fi != fe; ++fi){
- bool hasPreds = false;
- // Only print blocks that have predecessors.
- // FIXME: Slow.
- for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe;
- ++pi)
- if (pi->second.contains(&fi->second)) {
- hasPreds = true;
- break;
- }
-
- // Data block.
- if (!hasPreds && fi != f.begin()) {
- uint64_t End = llvm::next(fi) == fe ? SectSize :
- llvm::next(fi)->first;
- uint64_t addr;
- if (error(i->getAddress(addr))) break;
- outs() << "# " << End-fi->first << " bytes of data:\n";
- for (unsigned pos = fi->first; pos != End; ++pos) {
- outs() << format("%8x:\t", addr + pos);
- DumpBytes(StringRef(Bytes.data() + pos, 1));
- outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]);
- }
- continue;
- }
-
- if (fi->second.contains(&fi->second))
- outs() << "# Loop begin:\n";
-
- for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie;
- ++ii) {
- uint64_t addr;
- if (error(i->getAddress(addr))) break;
- const MCDecodedInst &Inst = fi->second.getInsts()[ii];
- outs() << format("%8x:\t", addr + Inst.Address);
- DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size));
- // Simple loops.
- if (fi->second.contains(&fi->second))
- outs() << '\t';
- IP->printInst(&Inst.Inst, outs());
- outs() << '\n';
- }
- }
-
- // Start a new dot file.
- std::string Error;
- raw_fd_ostream Out((f.getName().str() + ".dot").c_str(), Error);
- if (!Error.empty()) {
- errs() << ToolName << ": warning: " << Error << '\n';
- continue;
- }
-
- Out << "digraph " << f.getName() << " {\n";
- Out << "graph [ rankdir = \"LR\" ];\n";
- for (MCFunction::iterator i = f.begin(), e = f.end(); i != e; ++i) {
- bool hasPreds = false;
- // Only print blocks that have predecessors.
- // FIXME: Slow.
- for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe;
- ++pi)
- if (pi->second.contains(&i->second)) {
- hasPreds = true;
- break;
- }
-
- if (!hasPreds && i != f.begin())
- continue;
-
- Out << '"' << (uintptr_t)&i->second << "\" [ label=\"<a>";
- // Print instructions.
- for (unsigned ii = 0, ie = i->second.getInsts().size(); ii != ie;
- ++ii) {
- // Escape special chars and print the instruction in mnemonic form.
- std::string Str;
- raw_string_ostream OS(Str);
- IP->printInst(&i->second.getInsts()[ii].Inst, OS);
- Out << DOT::EscapeString(OS.str()) << '|';
- }
- Out << "<o>\" shape=\"record\" ];\n";
-
- // Add edges.
- for (MCBasicBlock::succ_iterator si = i->second.succ_begin(),
- se = i->second.succ_end(); si != se; ++si)
- Out << (uintptr_t)&i->second << ":o -> " << (uintptr_t)*si <<":a\n";
+ for (Index = Start; Index < End; Index += Size) {
+ MCInst Inst;
+
+ if (DisAsm->getInstruction(Inst, Size, memoryObject, Index,
+ DebugOut, nulls())) {
+ uint64_t addr;
+ if (error(i->getAddress(addr))) break;
+ outs() << format("%8x:\t", addr + 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
}
- Out << "}\n";
}
}
}
return 2;
}
- std::for_each(InputFilenames.begin(), InputFilenames.end(),
- DisassembleInput);
+ if (MachO)
+ std::for_each(InputFilenames.begin(), InputFilenames.end(),
+ DisassembleInputMachO);
+ else
+ std::for_each(InputFilenames.begin(), InputFilenames.end(),
+ DisassembleInputLibObject);
return 0;
}
projects / oota-llvm.git / blobdiff