//===----------------------------------------------------------------------===//
#include "llvm-objdump.h"
-#include "MCFunction.h"
-#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Triple.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Object/MachO.h"
+#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"
using namespace llvm;
using namespace object;
-static cl::opt<bool>
- CFG("cfg", cl::desc("Create a CFG for every symbol in the object file and"
- " write it to a graphviz file (MachO-only)"));
-
static cl::opt<bool>
UseDbg("g", cl::desc("Print line information from debug info if available"));
static cl::opt<std::string>
DSYMFile("dsym", cl::desc("Use .dSYM file for debug info"));
-static const Target *GetTarget(const MachOObject *MachOObj) {
+static const Target *GetTarget(const MachOObjectFile *MachOObj) {
// Figure out the target triple.
if (TripleName.empty()) {
llvm::Triple TT("unknown-unknown-unknown");
- switch (MachOObj->getHeader().CPUType) {
- case llvm::MachO::CPUTypeI386:
- TT.setArch(Triple::ArchType(Triple::x86));
- break;
- case llvm::MachO::CPUTypeX86_64:
- TT.setArch(Triple::ArchType(Triple::x86_64));
- break;
- case llvm::MachO::CPUTypeARM:
- TT.setArch(Triple::ArchType(Triple::arm));
- break;
- case llvm::MachO::CPUTypePowerPC:
- TT.setArch(Triple::ArchType(Triple::ppc));
- break;
- case llvm::MachO::CPUTypePowerPC64:
- TT.setArch(Triple::ArchType(Triple::ppc64));
- break;
- }
+ TT.setArch(Triple::ArchType(MachOObj->getArch()));
TripleName = TT.str();
}
}
};
-// Print additional information about an address, if available.
-static void DumpAddress(uint64_t Address, ArrayRef<SectionRef> Sections,
- const MachOObject *MachOObj, raw_ostream &OS) {
- for (unsigned i = 0; i != Sections.size(); ++i) {
- uint64_t SectAddr = 0, SectSize = 0;
- Sections[i].getAddress(SectAddr);
- Sections[i].getSize(SectSize);
- uint64_t addr = SectAddr;
- if (SectAddr <= Address &&
- SectAddr + SectSize > Address) {
- StringRef bytes, name;
- Sections[i].getContents(bytes);
- Sections[i].getName(name);
- // Print constant strings.
- if (!name.compare("__cstring"))
- OS << '"' << bytes.substr(addr, bytes.find('\0', addr)) << '"';
- // Print constant CFStrings.
- if (!name.compare("__cfstring"))
- OS << "@\"" << bytes.substr(addr, bytes.find('\0', addr)) << '"';
- }
- }
-}
+// Types for the storted data in code table that is built before disassembly
+// and the predicate function to sort them.
+typedef std::pair<uint64_t, DiceRef> DiceTableEntry;
+typedef std::vector<DiceTableEntry> DiceTable;
+typedef DiceTable::iterator dice_table_iterator;
-typedef std::map<uint64_t, MCFunction*> FunctionMapTy;
-typedef SmallVector<MCFunction, 16> FunctionListTy;
-static void createMCFunctionAndSaveCalls(StringRef Name,
- const MCDisassembler *DisAsm,
- MemoryObject &Object, uint64_t Start,
- uint64_t End,
- MCInstrAnalysis *InstrAnalysis,
- uint64_t Address,
- raw_ostream &DebugOut,
- FunctionMapTy &FunctionMap,
- FunctionListTy &Functions) {
- SmallVector<uint64_t, 16> Calls;
- MCFunction f =
- MCFunction::createFunctionFromMC(Name, DisAsm, Object, Start, End,
- InstrAnalysis, DebugOut, Calls);
- Functions.push_back(f);
- FunctionMap[Address] = &Functions.back();
-
- // Add the gathered callees to the map.
- for (unsigned i = 0, e = Calls.size(); i != e; ++i)
- FunctionMap.insert(std::make_pair(Calls[i], (MCFunction*)0));
+static bool
+compareDiceTableEntries(const DiceTableEntry i,
+ const DiceTableEntry j) {
+ return i.first == j.first;
}
-// Write a graphviz file for the CFG inside an MCFunction.
-static void emitDOTFile(const char *FileName, const MCFunction &f,
- MCInstPrinter *IP) {
- // Start a new dot file.
- std::string Error;
- raw_fd_ostream Out(FileName, Error);
- if (!Error.empty()) {
- errs() << "llvm-objdump: warning: " << Error << '\n';
- return;
- }
-
- 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->first)) {
- hasPreds = true;
- break;
- }
-
- if (!hasPreds && i != f.begin())
- continue;
-
- Out << '"' << i->first << "\" [ 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()) << '|';
+static void DumpDataInCode(const char *bytes, uint64_t Size,
+ unsigned short Kind) {
+ uint64_t Value;
+
+ switch (Kind) {
+ case MachO::DICE_KIND_DATA:
+ switch (Size) {
+ case 4:
+ Value = bytes[3] << 24 |
+ bytes[2] << 16 |
+ bytes[1] << 8 |
+ bytes[0];
+ outs() << "\t.long " << Value;
+ break;
+ case 2:
+ Value = bytes[1] << 8 |
+ bytes[0];
+ outs() << "\t.short " << Value;
+ break;
+ case 1:
+ Value = bytes[0];
+ outs() << "\t.byte " << Value;
+ break;
}
- 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 << i->first << ":o -> " << *si <<":a\n";
+ outs() << "\t@ KIND_DATA\n";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE8:
+ Value = bytes[0];
+ outs() << "\t.byte " << Value << "\t@ KIND_JUMP_TABLE8";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE16:
+ Value = bytes[1] << 8 |
+ bytes[0];
+ outs() << "\t.short " << Value << "\t@ KIND_JUMP_TABLE16";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE32:
+ Value = bytes[3] << 24 |
+ bytes[2] << 16 |
+ bytes[1] << 8 |
+ bytes[0];
+ outs() << "\t.long " << Value << "\t@ KIND_JUMP_TABLE32";
+ break;
+ default:
+ outs() << "\t@ data in code kind = " << Kind << "\n";
+ break;
}
- Out << "}\n";
}
-static void getSectionsAndSymbols(const macho::Header &Header,
+static void getSectionsAndSymbols(const MachO::mach_header Header,
MachOObjectFile *MachOObj,
std::vector<SectionRef> &Sections,
std::vector<SymbolRef> &Symbols,
- SmallVectorImpl<uint64_t> &FoundFns) {
- error_code ec;
- for (symbol_iterator SI = MachOObj->begin_symbols(),
- SE = MachOObj->end_symbols(); SI != SE; SI.increment(ec))
- Symbols.push_back(*SI);
-
- for (section_iterator SI = MachOObj->begin_sections(),
- SE = MachOObj->end_sections(); SI != SE; SI.increment(ec)) {
- SectionRef SR = *SI;
+ SmallVectorImpl<uint64_t> &FoundFns,
+ uint64_t &BaseSegmentAddress) {
+ for (const SymbolRef &Symbol : MachOObj->symbols())
+ Symbols.push_back(Symbol);
+
+ for (const SectionRef &Section : MachOObj->sections()) {
StringRef SectName;
- SR.getName(SectName);
- Sections.push_back(*SI);
+ Section.getName(SectName);
+ Sections.push_back(Section);
}
- for (unsigned i = 0; i != Header.NumLoadCommands; ++i) {
- const MachOObject::LoadCommandInfo &LCI =
- MachOObj->getObject()->getLoadCommandInfo(i);
- if (LCI.Command.Type == macho::LCT_FunctionStarts) {
+ MachOObjectFile::LoadCommandInfo Command =
+ MachOObj->getFirstLoadCommandInfo();
+ bool BaseSegmentAddressSet = false;
+ for (unsigned i = 0; ; ++i) {
+ if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) {
// We found a function starts segment, parse the addresses for later
// consumption.
- const MachOFormat::LinkeditDataLoadCommand *LLC =
- MachOObj->getLinkeditDataLoadCommand(LCI);
+ MachO::linkedit_data_command LLC =
+ MachOObj->getLinkeditDataLoadCommand(Command);
- MachOObj->getObject()->ReadULEB128s(LLC->DataOffset, FoundFns);
+ MachOObj->ReadULEB128s(LLC.dataoff, FoundFns);
+ }
+ else if (Command.C.cmd == MachO::LC_SEGMENT) {
+ MachO::segment_command SLC =
+ MachOObj->getSegmentLoadCommand(Command);
+ StringRef SegName = SLC.segname;
+ if(!BaseSegmentAddressSet && SegName != "__PAGEZERO") {
+ BaseSegmentAddressSet = true;
+ BaseSegmentAddress = SLC.vmaddr;
+ }
}
+
+ if (i == Header.ncmds - 1)
+ break;
+ else
+ Command = MachOObj->getNextLoadCommandInfo(Command);
}
}
+static void DisassembleInputMachO2(StringRef Filename,
+ MachOObjectFile *MachOOF);
+
void llvm::DisassembleInputMachO(StringRef Filename) {
- OwningPtr<MemoryBuffer> Buff;
+ std::unique_ptr<MemoryBuffer> Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n";
return;
}
- OwningPtr<MachOObjectFile> MachOOF(static_cast<MachOObjectFile*>(
- ObjectFile::createMachOObjectFile(Buff.take())));
- const MachOObject *MachOObj = MachOOF->getObject();
+ std::unique_ptr<MachOObjectFile> MachOOF(static_cast<MachOObjectFile *>(
+ ObjectFile::createMachOObjectFile(Buff.release()).get()));
+
+ DisassembleInputMachO2(Filename, MachOOF.get());
+}
- const Target *TheTarget = GetTarget(MachOObj);
+static void DisassembleInputMachO2(StringRef Filename,
+ MachOObjectFile *MachOOF) {
+ const Target *TheTarget = GetTarget(MachOOF);
if (!TheTarget) {
// GetTarget prints out stuff.
return;
}
- OwningPtr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
- OwningPtr<MCInstrAnalysis>
- InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo.get()));
+ std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
+ std::unique_ptr<MCInstrAnalysis> InstrAnalysis(
+ TheTarget->createMCInstrAnalysis(InstrInfo.get()));
// Set up disassembler.
- OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName));
- OwningPtr<const MCSubtargetInfo>
- STI(TheTarget->createMCSubtargetInfo(TripleName, "", ""));
- OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI));
- OwningPtr<const MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName));
+ std::unique_ptr<const MCRegisterInfo> MRI(
+ TheTarget->createMCRegInfo(TripleName));
+ std::unique_ptr<const MCAsmInfo> AsmInfo(
+ TheTarget->createMCAsmInfo(*MRI, TripleName));
+ std::unique_ptr<const MCSubtargetInfo> STI(
+ TheTarget->createMCSubtargetInfo(TripleName, "", ""));
+ std::unique_ptr<const MCDisassembler> DisAsm(
+ TheTarget->createMCDisassembler(*STI));
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
- OwningPtr<MCInstPrinter>
- IP(TheTarget->createMCInstPrinter(AsmPrinterVariant, *AsmInfo, *InstrInfo,
- *MRI, *STI));
+ std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
+ AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI, *STI));
if (!InstrAnalysis || !AsmInfo || !STI || !DisAsm || !IP) {
errs() << "error: couldn't initialize disassembler for target "
outs() << '\n' << Filename << ":\n\n";
- const macho::Header &Header = MachOObj->getHeader();
+ MachO::mach_header Header = MachOOF->getHeader();
+ // FIXME: FoundFns isn't used anymore. Using symbols/LC_FUNCTION_STARTS to
+ // determine function locations will eventually go in MCObjectDisassembler.
+ // FIXME: Using the -cfg command line option, this code used to be able to
+ // annotate relocations with the referenced symbol's name, and if this was
+ // inside a __[cf]string section, the data it points to. This is now replaced
+ // by the upcoming MCSymbolizer, which needs the appropriate setup done above.
std::vector<SectionRef> Sections;
std::vector<SymbolRef> Symbols;
SmallVector<uint64_t, 8> FoundFns;
+ uint64_t BaseSegmentAddress;
- getSectionsAndSymbols(Header, MachOOF.get(), Sections, Symbols, FoundFns);
+ getSectionsAndSymbols(Header, MachOOF, Sections, Symbols, FoundFns,
+ BaseSegmentAddress);
- // Make a copy of the unsorted symbol list. FIXME: duplication
- std::vector<SymbolRef> UnsortedSymbols(Symbols);
// Sort the symbols by address, just in case they didn't come in that way.
std::sort(Symbols.begin(), Symbols.end(), SymbolSorter());
+ // Build a data in code table that is sorted on by the address of each entry.
+ uint64_t BaseAddress = 0;
+ if (Header.filetype == MachO::MH_OBJECT)
+ Sections[0].getAddress(BaseAddress);
+ else
+ BaseAddress = BaseSegmentAddress;
+ DiceTable Dices;
+ for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices();
+ DI != DE; ++DI) {
+ uint32_t Offset;
+ DI->getOffset(Offset);
+ Dices.push_back(std::make_pair(BaseAddress + Offset, *DI));
+ }
+ array_pod_sort(Dices.begin(), Dices.end());
+
#ifndef NDEBUG
raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
#else
raw_ostream &DebugOut = nulls();
#endif
- OwningPtr<DIContext> diContext;
- ObjectFile *DbgObj = MachOOF.get();
+ std::unique_ptr<DIContext> diContext;
+ ObjectFile *DbgObj = MachOOF;
// Try to find debug info and set up the DIContext for it.
if (UseDbg) {
// A separate DSym file path was specified, parse it as a macho file,
// get the sections and supply it to the section name parsing machinery.
if (!DSYMFile.empty()) {
- OwningPtr<MemoryBuffer> Buf;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile.c_str(), Buf)) {
+ std::unique_ptr<MemoryBuffer> Buf;
+ if (error_code ec = MemoryBuffer::getFileOrSTDIN(DSYMFile, Buf)) {
errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n';
return;
}
- DbgObj = ObjectFile::createMachOObjectFile(Buf.take());
+ DbgObj = ObjectFile::createMachOObjectFile(Buf.release()).get();
}
// Setup the DIContext
diContext.reset(DIContext::getDWARFContext(DbgObj));
}
- FunctionMapTy FunctionMap;
- FunctionListTy Functions;
-
for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) {
+
+ bool SectIsText = false;
+ Sections[SectIdx].isText(SectIsText);
+ if (SectIsText == false)
+ continue;
+
StringRef SectName;
if (Sections[SectIdx].getName(SectName) ||
SectName != "__text")
continue; // Skip non-text sections
DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
+
StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
if (SegmentName != "__TEXT")
continue;
- // Insert the functions from the function starts segment into our map.
- uint64_t VMAddr;
- Sections[SectIdx].getAddress(VMAddr);
- for (unsigned i = 0, e = FoundFns.size(); i != e; ++i) {
- StringRef SectBegin;
- Sections[SectIdx].getContents(SectBegin);
- uint64_t Offset = (uint64_t)SectBegin.data();
- FunctionMap.insert(std::make_pair(VMAddr + FoundFns[i]-Offset,
- (MCFunction*)0));
- }
-
StringRef Bytes;
Sections[SectIdx].getContents(Bytes);
StringRefMemoryObject memoryObject(Bytes);
bool symbolTableWorked = false;
// Parse relocations.
- std::vector<std::pair<uint64_t, SymbolRef> > Relocs;
- error_code ec;
- for (relocation_iterator RI = Sections[SectIdx].begin_relocations(),
- RE = Sections[SectIdx].end_relocations(); RI != RE; RI.increment(ec)) {
+ std::vector<std::pair<uint64_t, SymbolRef>> Relocs;
+ for (const RelocationRef &Reloc : Sections[SectIdx].relocations()) {
uint64_t RelocOffset, SectionAddress;
- RI->getAddress(RelocOffset);
+ Reloc.getOffset(RelocOffset);
Sections[SectIdx].getAddress(SectionAddress);
RelocOffset -= SectionAddress;
- SymbolRef RelocSym;
- RI->getSymbol(RelocSym);
+ symbol_iterator RelocSym = Reloc.getSymbol();
- Relocs.push_back(std::make_pair(RelocOffset, RelocSym));
+ Relocs.push_back(std::make_pair(RelocOffset, *RelocSym));
}
array_pod_sort(Relocs.begin(), Relocs.end());
symbolTableWorked = true;
- if (!CFG) {
- // Normal disassembly, print addresses, bytes and mnemonic form.
- StringRef SymName;
- Symbols[SymIdx].getName(SymName);
-
- outs() << SymName << ":\n";
- DILineInfo lastLine;
- for (uint64_t Index = Start; Index < End; Index += Size) {
- MCInst Inst;
-
- if (DisAsm->getInstruction(Inst, Size, memoryObject, Index,
- DebugOut, nulls())) {
- uint64_t SectAddress = 0;
- Sections[SectIdx].getAddress(SectAddress);
- outs() << format("%8" PRIx64 ":\t", SectAddress + Index);
-
- DumpBytes(StringRef(Bytes.data() + Index, Size));
- IP->printInst(&Inst, outs(), "");
-
- // Print debug info.
- if (diContext) {
- DILineInfo dli =
- diContext->getLineInfoForAddress(SectAddress + Index);
- // Print valid line info if it changed.
- if (dli != lastLine && dli.getLine() != 0)
- outs() << "\t## " << dli.getFileName() << ':'
- << dli.getLine() << ':' << dli.getColumn();
- lastLine = dli;
- }
- outs() << "\n";
- } else {
- errs() << "llvm-objdump: warning: invalid instruction encoding\n";
- if (Size == 0)
- Size = 1; // skip illegible bytes
+ outs() << SymName << ":\n";
+ DILineInfo lastLine;
+ for (uint64_t Index = Start; Index < End; Index += Size) {
+ MCInst Inst;
+
+ uint64_t SectAddress = 0;
+ Sections[SectIdx].getAddress(SectAddress);
+ outs() << format("%8" PRIx64 ":\t", SectAddress + Index);
+
+ // Check the data in code table here to see if this is data not an
+ // instruction to be disassembled.
+ DiceTable Dice;
+ Dice.push_back(std::make_pair(SectAddress + Index, DiceRef()));
+ dice_table_iterator DTI = std::search(Dices.begin(), Dices.end(),
+ Dice.begin(), Dice.end(),
+ compareDiceTableEntries);
+ if (DTI != Dices.end()){
+ uint16_t Length;
+ DTI->second.getLength(Length);
+ DumpBytes(StringRef(Bytes.data() + Index, Length));
+ uint16_t Kind;
+ DTI->second.getKind(Kind);
+ DumpDataInCode(Bytes.data() + Index, Length, Kind);
+ continue;
+ }
+
+ if (DisAsm->getInstruction(Inst, Size, memoryObject, Index,
+ DebugOut, nulls())) {
+ DumpBytes(StringRef(Bytes.data() + Index, Size));
+ IP->printInst(&Inst, outs(), "");
+
+ // Print debug info.
+ if (diContext) {
+ DILineInfo dli =
+ diContext->getLineInfoForAddress(SectAddress + Index);
+ // Print valid line info if it changed.
+ if (dli != lastLine && dli.getLine() != 0)
+ outs() << "\t## " << dli.getFileName() << ':'
+ << dli.getLine() << ':' << dli.getColumn();
+ lastLine = dli;
}
+ outs() << "\n";
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (Size == 0)
+ Size = 1; // skip illegible bytes
}
- } else {
- // Create CFG and use it for disassembly.
- StringRef SymName;
- Symbols[SymIdx].getName(SymName);
- createMCFunctionAndSaveCalls(
- SymName, DisAsm.get(), memoryObject, Start, End,
- InstrAnalysis.get(), Start, DebugOut, FunctionMap, Functions);
}
}
- if (!CFG && !symbolTableWorked) {
+ if (!symbolTableWorked) {
// Reading the symbol table didn't work, disassemble the whole section.
uint64_t SectAddress;
Sections[SectIdx].getAddress(SectAddress);
}
}
}
-
- if (CFG) {
- if (!symbolTableWorked) {
- // Reading the symbol table didn't work, create a big __TEXT symbol.
- uint64_t SectSize = 0, SectAddress = 0;
- Sections[SectIdx].getSize(SectSize);
- Sections[SectIdx].getAddress(SectAddress);
- createMCFunctionAndSaveCalls("__TEXT", DisAsm.get(), memoryObject,
- 0, SectSize,
- InstrAnalysis.get(),
- SectAddress, DebugOut,
- FunctionMap, Functions);
- }
- for (std::map<uint64_t, MCFunction*>::iterator mi = FunctionMap.begin(),
- me = FunctionMap.end(); mi != me; ++mi)
- if (mi->second == 0) {
- // Create functions for the remaining callees we have gathered,
- // but we didn't find a name for them.
- uint64_t SectSize = 0;
- Sections[SectIdx].getSize(SectSize);
-
- SmallVector<uint64_t, 16> Calls;
- MCFunction f =
- MCFunction::createFunctionFromMC("unknown", DisAsm.get(),
- memoryObject, mi->first,
- SectSize,
- InstrAnalysis.get(), DebugOut,
- Calls);
- Functions.push_back(f);
- mi->second = &Functions.back();
- for (unsigned i = 0, e = Calls.size(); i != e; ++i) {
- std::pair<uint64_t, MCFunction*> p(Calls[i], (MCFunction*)0);
- if (FunctionMap.insert(p).second)
- mi = FunctionMap.begin();
- }
- }
-
- DenseSet<uint64_t> PrintedBlocks;
- for (unsigned ffi = 0, ffe = Functions.size(); ffi != ffe; ++ffi) {
- MCFunction &f = Functions[ffi];
- for (MCFunction::iterator fi = f.begin(), fe = f.end(); fi != fe; ++fi){
- if (!PrintedBlocks.insert(fi->first).second)
- continue; // We already printed this block.
-
- // We assume a block has predecessors when it's the first block after
- // a symbol.
- bool hasPreds = FunctionMap.find(fi->first) != FunctionMap.end();
-
- // See if this block has predecessors.
- // FIXME: Slow.
- for (MCFunction::iterator pi = f.begin(), pe = f.end(); pi != pe;
- ++pi)
- if (pi->second.contains(fi->first)) {
- hasPreds = true;
- break;
- }
-
- uint64_t SectSize = 0, SectAddress;
- Sections[SectIdx].getSize(SectSize);
- Sections[SectIdx].getAddress(SectAddress);
-
- // No predecessors, this is a data block. Print as .byte directives.
- if (!hasPreds) {
- uint64_t End = llvm::next(fi) == fe ? SectSize :
- llvm::next(fi)->first;
- outs() << "# " << End-fi->first << " bytes of data:\n";
- for (unsigned pos = fi->first; pos != End; ++pos) {
- outs() << format("%8x:\t", SectAddress + pos);
- DumpBytes(StringRef(Bytes.data() + pos, 1));
- outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]);
- }
- continue;
- }
-
- if (fi->second.contains(fi->first)) // Print a header for simple loops
- outs() << "# Loop begin:\n";
-
- DILineInfo lastLine;
- // Walk over the instructions and print them.
- for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie;
- ++ii) {
- const MCDecodedInst &Inst = fi->second.getInsts()[ii];
-
- // If there's a symbol at this address, print its name.
- if (FunctionMap.find(SectAddress + Inst.Address) !=
- FunctionMap.end())
- outs() << FunctionMap[SectAddress + Inst.Address]-> getName()
- << ":\n";
-
- outs() << format("%8" PRIx64 ":\t", SectAddress + Inst.Address);
- DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size));
-
- if (fi->second.contains(fi->first)) // Indent simple loops.
- outs() << '\t';
-
- IP->printInst(&Inst.Inst, outs(), "");
-
- // Look for relocations inside this instructions, if there is one
- // print its target and additional information if available.
- for (unsigned j = 0; j != Relocs.size(); ++j)
- if (Relocs[j].first >= SectAddress + Inst.Address &&
- Relocs[j].first < SectAddress + Inst.Address + Inst.Size) {
- StringRef SymName;
- uint64_t Addr;
- Relocs[j].second.getAddress(Addr);
- Relocs[j].second.getName(SymName);
-
- outs() << "\t# " << SymName << ' ';
- DumpAddress(Addr, Sections, MachOObj, outs());
- }
-
- // If this instructions contains an address, see if we can evaluate
- // it and print additional information.
- uint64_t targ = InstrAnalysis->evaluateBranch(Inst.Inst,
- Inst.Address,
- Inst.Size);
- if (targ != -1ULL)
- DumpAddress(targ, Sections, MachOObj, outs());
-
- // Print debug info.
- if (diContext) {
- DILineInfo dli =
- diContext->getLineInfoForAddress(SectAddress + Inst.Address);
- // Print valid line info if it changed.
- if (dli != lastLine && dli.getLine() != 0)
- outs() << "\t## " << dli.getFileName() << ':'
- << dli.getLine() << ':' << dli.getColumn();
- lastLine = dli;
- }
-
- outs() << '\n';
- }
- }
-
- emitDOTFile((f.getName().str() + ".dot").c_str(), f, IP.get());
- }
- }
}
}