//===----------------------------------------------------------------------===//
#include "llvm-objdump.h"
-#include "MCFunction.h"
-#include "llvm/Support/MachO.h"
-#include "llvm/Object/MachO.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/ADT/Triple.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/MCContext.h"
#include "llvm/MC/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCInstrInfo.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/Endian.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/GraphWriter.h"
+#include "llvm/Support/MachO.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
#include <algorithm>
#include <cstring>
+#include <system_error>
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 std::string ThumbTripleName;
+
+static const Target *GetTarget(const MachOObjectFile *MachOObj,
+ const char **McpuDefault,
+ const Target **ThumbTarget) {
// Figure out the target triple.
- 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;
+ if (TripleName.empty()) {
+ llvm::Triple TT("unknown-unknown-unknown");
+ llvm::Triple ThumbTriple = Triple();
+ TT = MachOObj->getArch(McpuDefault, &ThumbTriple);
+ TripleName = TT.str();
+ ThumbTripleName = ThumbTriple.str();
}
- TripleName = TT.str();
-
// Get the target specific parser.
std::string Error;
const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error);
- if (TheTarget)
+ if (TheTarget && ThumbTripleName.empty())
+ return TheTarget;
+
+ *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error);
+ if (*ThumbTarget)
return TheTarget;
- errs() << "llvm-objdump: error: unable to get target for '" << TripleName
- << "', see --version and --triple.\n";
- return 0;
+ errs() << "llvm-objdump: error: unable to get target for '";
+ if (!TheTarget)
+ errs() << TripleName;
+ else
+ errs() << ThumbTripleName;
+ errs() << "', see --version and --triple.\n";
+ return nullptr;
}
struct SymbolSorter {
}
};
-// Print additional information about an address, if available.
-static void DumpAddress(uint64_t Address, ArrayRef<SectionRef> Sections,
- 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)) << '"';
- }
- }
-}
-
-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));
-}
-
-// 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;
- }
+// 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;
- 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;
+static bool
+compareDiceTableEntries(const DiceTableEntry i,
+ const DiceTableEntry j) {
+ return i.first == j.first;
+}
- 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,
- InMemoryStruct<macho::SymtabLoadCommand> *SymtabLC,
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.
- InMemoryStruct<macho::LinkeditDataLoadCommand> LLC;
- MachOObj->getObject()->ReadLinkeditDataLoadCommand(LCI, LLC);
+ 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);
}
}
-void llvm::DisassembleInputMachO(StringRef Filename) {
- OwningPtr<MemoryBuffer> Buff;
+static void DisassembleInputMachO2(StringRef Filename,
+ MachOObjectFile *MachOOF);
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
- errs() << "llvm-objdump: " << Filename << ": " << ec.message() << "\n";
+void llvm::DisassembleInputMachO(StringRef Filename) {
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BuffOrErr =
+ MemoryBuffer::getFileOrSTDIN(Filename);
+ if (std::error_code EC = BuffOrErr.getError()) {
+ errs() << "llvm-objdump: " << Filename << ": " << EC.message() << "\n";
return;
}
+ std::unique_ptr<MemoryBuffer> Buff = std::move(BuffOrErr.get());
- OwningPtr<MachOObjectFile> MachOOF(static_cast<MachOObjectFile*>(
- ObjectFile::createMachOObjectFile(Buff.take())));
- MachOObject *MachOObj = MachOOF->getObject();
+ std::unique_ptr<MachOObjectFile> MachOOF = std::move(
+ ObjectFile::createMachOObjectFile(Buff.get()->getMemBufferRef()).get());
- const Target *TheTarget = GetTarget(MachOObj);
+ DisassembleInputMachO2(Filename, MachOOF.get());
+}
+
+static void DisassembleInputMachO2(StringRef Filename,
+ MachOObjectFile *MachOOF) {
+ const char *McpuDefault = nullptr;
+ const Target *ThumbTarget = nullptr;
+ const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget);
if (!TheTarget) {
// GetTarget prints out stuff.
return;
}
- OwningPtr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
- OwningPtr<MCInstrAnalysis>
- InstrAnalysis(TheTarget->createMCInstrAnalysis(InstrInfo.get()));
+ if (MCPU.empty() && McpuDefault)
+ MCPU = McpuDefault;
+
+ std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
+ std::unique_ptr<MCInstrAnalysis> InstrAnalysis(
+ TheTarget->createMCInstrAnalysis(InstrInfo.get()));
+ std::unique_ptr<const MCInstrInfo> ThumbInstrInfo;
+ std::unique_ptr<MCInstrAnalysis> ThumbInstrAnalysis;
+ if (ThumbTarget) {
+ ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo());
+ ThumbInstrAnalysis.reset(
+ ThumbTarget->createMCInstrAnalysis(ThumbInstrInfo.get()));
+ }
+
+ // Package up features to be passed to target/subtarget
+ std::string FeaturesStr;
+ if (MAttrs.size()) {
+ SubtargetFeatures Features;
+ for (unsigned i = 0; i != MAttrs.size(); ++i)
+ Features.AddFeature(MAttrs[i]);
+ FeaturesStr = Features.getString();
+ }
// Set up disassembler.
- OwningPtr<const MCAsmInfo> AsmInfo(TheTarget->createMCAsmInfo(TripleName));
- OwningPtr<const MCSubtargetInfo>
- STI(TheTarget->createMCSubtargetInfo(TripleName, "", ""));
- OwningPtr<const MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI));
+ 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, MCPU, FeaturesStr));
+ MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr);
+ std::unique_ptr<const MCDisassembler> DisAsm(
+ TheTarget->createMCDisassembler(*STI, Ctx));
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
- OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
- AsmPrinterVariant, *AsmInfo, *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 "
return;
}
- outs() << '\n' << Filename << ":\n\n";
-
- const macho::Header &Header = MachOObj->getHeader();
+ // Set up thumb disassembler.
+ std::unique_ptr<const MCRegisterInfo> ThumbMRI;
+ std::unique_ptr<const MCAsmInfo> ThumbAsmInfo;
+ std::unique_ptr<const MCSubtargetInfo> ThumbSTI;
+ std::unique_ptr<const MCDisassembler> ThumbDisAsm;
+ std::unique_ptr<MCInstPrinter> ThumbIP;
+ std::unique_ptr<MCContext> ThumbCtx;
+ if (ThumbTarget) {
+ ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName));
+ ThumbAsmInfo.reset(
+ ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName));
+ ThumbSTI.reset(
+ ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MCPU, FeaturesStr));
+ ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr));
+ ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx));
+ int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect();
+ ThumbIP.reset(ThumbTarget->createMCInstPrinter(
+ ThumbAsmPrinterVariant, *ThumbAsmInfo, *ThumbInstrInfo, *ThumbMRI,
+ *ThumbSTI));
+ }
- const MachOObject::LoadCommandInfo *SymtabLCI = 0;
- // First, find the symbol table segment.
- for (unsigned i = 0; i != Header.NumLoadCommands; ++i) {
- const MachOObject::LoadCommandInfo &LCI = MachOObj->getLoadCommandInfo(i);
- if (LCI.Command.Type == macho::LCT_Symtab) {
- SymtabLCI = &LCI;
- break;
- }
+ if (ThumbTarget && (!ThumbInstrAnalysis || !ThumbAsmInfo || !ThumbSTI ||
+ !ThumbDisAsm || !ThumbIP)) {
+ errs() << "error: couldn't initialize disassembler for target "
+ << ThumbTripleName << '\n';
+ return;
}
- // Read and register the symbol table data.
- InMemoryStruct<macho::SymtabLoadCommand> SymtabLC;
- MachOObj->ReadSymtabLoadCommand(*SymtabLCI, SymtabLC);
- MachOObj->RegisterStringTable(*SymtabLC);
+ outs() << '\n' << Filename << ":\n\n";
+
+ MachO::mach_header Header = MachOOF->getHeader();
+ // 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(), &SymtabLC, 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
- StringRef DebugAbbrevSection, DebugInfoSection, DebugArangesSection,
- DebugLineSection, DebugStrSection;
- OwningPtr<DIContext> diContext;
- OwningPtr<MachOObjectFile> DSYMObj;
- MachOObject *DbgInfoObj = MachOObj;
+ std::unique_ptr<DIContext> diContext;
+ ObjectFile *DbgObj = MachOOF;
// Try to find debug info and set up the DIContext for it.
if (UseDbg) {
- ArrayRef<SectionRef> DebugSections = Sections;
- std::vector<SectionRef> DSYMSections;
-
// 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)) {
- errs() << "llvm-objdump: " << Filename << ": " << ec.message() << '\n';
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr =
+ MemoryBuffer::getFileOrSTDIN(DSYMFile);
+ if (std::error_code EC = BufOrErr.getError()) {
+ errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n';
return;
}
- DSYMObj.reset(static_cast<MachOObjectFile*>(
- ObjectFile::createMachOObjectFile(Buf.take())));
- const macho::Header &Header = DSYMObj->getObject()->getHeader();
-
- std::vector<SymbolRef> Symbols;
- SmallVector<uint64_t, 8> FoundFns;
- getSectionsAndSymbols(Header, DSYMObj.get(), 0, DSYMSections, Symbols,
- FoundFns);
- DebugSections = DSYMSections;
- DbgInfoObj = DSYMObj.get()->getObject();
- }
-
- // Find the named debug info sections.
- for (unsigned SectIdx = 0; SectIdx != DebugSections.size(); SectIdx++) {
- StringRef SectName;
- if (!DebugSections[SectIdx].getName(SectName)) {
- if (SectName.equals("__DWARF,__debug_abbrev"))
- DebugSections[SectIdx].getContents(DebugAbbrevSection);
- else if (SectName.equals("__DWARF,__debug_info"))
- DebugSections[SectIdx].getContents(DebugInfoSection);
- else if (SectName.equals("__DWARF,__debug_aranges"))
- DebugSections[SectIdx].getContents(DebugArangesSection);
- else if (SectName.equals("__DWARF,__debug_line"))
- DebugSections[SectIdx].getContents(DebugLineSection);
- else if (SectName.equals("__DWARF,__debug_str"))
- DebugSections[SectIdx].getContents(DebugStrSection);
- }
+ DbgObj =
+ ObjectFile::createMachOObjectFile(BufOrErr.get()->getMemBufferRef())
+ .get()
+ .release();
}
- // Setup the DIContext.
- diContext.reset(DIContext::getDWARFContext(DbgInfoObj->isLittleEndian(),
- DebugInfoSection,
- DebugAbbrevSection,
- DebugArangesSection,
- DebugLineSection,
- DebugStrSection));
+ // 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.compare("__TEXT,__text"))
+ SectName != "__text")
continue; // Skip non-text sections
- // 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));
- }
+ DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
+
+ StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
+ if (SegmentName != "__TEXT")
+ continue;
StringRef Bytes;
Sections[SectIdx].getContents(Bytes);
bool symbolTableWorked = false;
// Parse relocations.
- std::vector<std::pair<uint64_t, uint32_t> > 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;
- uint64_t RelocInfo;
- RI->getType(RelocInfo);
+ symbol_iterator RelocSym = Reloc.getSymbol();
- Relocs.push_back(std::make_pair(RelocOffset, RelocInfo));
+ Relocs.push_back(std::make_pair(RelocOffset, *RelocSym));
}
array_pod_sort(Relocs.begin(), Relocs.end());
continue;
// Start at the address of the symbol relative to the section's address.
+ uint64_t SectionAddress = 0;
uint64_t Start = 0;
- Symbols[SymIdx].getOffset(Start);
+ Sections[SectIdx].getAddress(SectionAddress);
+ Symbols[SymIdx].getAddress(Start);
+ Start -= SectionAddress;
// Stop disassembling either at the beginning of the next symbol or at
// the end of the section.
- bool containsNextSym = true;
+ bool containsNextSym = false;
uint64_t NextSym = 0;
uint64_t NextSymIdx = SymIdx+1;
while (Symbols.size() > NextSymIdx) {
if (NextSymType == SymbolRef::ST_Function) {
Sections[SectIdx].containsSymbol(Symbols[NextSymIdx],
containsNextSym);
- Symbols[NextSymIdx].getOffset(NextSym);
+ Symbols[NextSymIdx].getAddress(NextSym);
+ NextSym -= SectionAddress;
break;
}
++NextSymIdx;
symbolTableWorked = true;
- if (!CFG) {
- // Normal disassembly, print addresses, bytes and mnemonic form.
- StringRef SymName;
- Symbols[SymIdx].getName(SymName);
+ DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl();
+ bool isThumb =
+ (MachOOF->getSymbolFlags(Symb) & SymbolRef::SF_Thumb) && ThumbTarget;
- outs() << SymName << ":\n";
- DILineInfo lastLine;
- for (uint64_t Index = Start; Index < End; Index += Size) {
- MCInst Inst;
+ 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);
+ 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;
+ }
- DumpBytes(StringRef(Bytes.data() + Index, Size));
+ bool gotInst;
+ if (isThumb)
+ gotInst = ThumbDisAsm->getInstruction(Inst, Size, memoryObject, Index,
+ DebugOut, nulls());
+ else
+ gotInst = DisAsm->getInstruction(Inst, Size, memoryObject, Index,
+ DebugOut, nulls());
+ if (gotInst) {
+ DumpBytes(StringRef(Bytes.data() + Index, Size));
+ if (isThumb)
+ ThumbIP->printInst(&Inst, outs(), "");
+ else
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
+ // Print debug info.
+ if (diContext) {
+ DILineInfo dli =
+ diContext->getLineInfoForAddress(SectAddress + Index);
+ // Print valid line info if it changed.
+ if (dli != lastLine && dli.Line != 0)
+ outs() << "\t## " << dli.FileName << ':' << dli.Line << ':'
+ << dli.Column;
+ lastLine = dli;
}
+ outs() << "\n";
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (Size == 0)
+ Size = 1; // skip illegible bytes
+ }
+ }
+ }
+ if (!symbolTableWorked) {
+ // Reading the symbol table didn't work, disassemble the whole section.
+ uint64_t SectAddress;
+ Sections[SectIdx].getAddress(SectAddress);
+ uint64_t SectSize;
+ Sections[SectIdx].getSize(SectSize);
+ uint64_t InstSize;
+ for (uint64_t Index = 0; Index < SectSize; Index += InstSize) {
+ MCInst Inst;
+
+ if (DisAsm->getInstruction(Inst, InstSize, memoryObject, Index,
+ DebugOut, nulls())) {
+ outs() << format("%8" PRIx64 ":\t", SectAddress + Index);
+ DumpBytes(StringRef(Bytes.data() + Index, InstSize));
+ IP->printInst(&Inst, outs(), "");
+ outs() << "\n";
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (InstSize == 0)
+ InstSize = 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) {
- 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);
+
+//===----------------------------------------------------------------------===//
+// __compact_unwind section dumping
+//===----------------------------------------------------------------------===//
+
+namespace {
+
+template <typename T> static uint64_t readNext(const char *&Buf) {
+ using llvm::support::little;
+ using llvm::support::unaligned;
+
+ uint64_t Val = support::endian::read<T, little, unaligned>(Buf);
+ Buf += sizeof(T);
+ return Val;
+ }
+
+struct CompactUnwindEntry {
+ uint32_t OffsetInSection;
+
+ uint64_t FunctionAddr;
+ uint32_t Length;
+ uint32_t CompactEncoding;
+ uint64_t PersonalityAddr;
+ uint64_t LSDAAddr;
+
+ RelocationRef FunctionReloc;
+ RelocationRef PersonalityReloc;
+ RelocationRef LSDAReloc;
+
+ CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64)
+ : OffsetInSection(Offset) {
+ if (Is64)
+ read<uint64_t>(Contents.data() + Offset);
+ else
+ read<uint32_t>(Contents.data() + Offset);
+ }
+
+private:
+ template<typename UIntPtr>
+ void read(const char *Buf) {
+ FunctionAddr = readNext<UIntPtr>(Buf);
+ Length = readNext<uint32_t>(Buf);
+ CompactEncoding = readNext<uint32_t>(Buf);
+ PersonalityAddr = readNext<UIntPtr>(Buf);
+ LSDAAddr = readNext<UIntPtr>(Buf);
+ }
+};
+}
+
+/// Given a relocation from __compact_unwind, consisting of the RelocationRef
+/// and data being relocated, determine the best base Name and Addend to use for
+/// display purposes.
+///
+/// 1. An Extern relocation will directly reference a symbol (and the data is
+/// then already an addend), so use that.
+/// 2. Otherwise the data is an offset in the object file's layout; try to find
+// a symbol before it in the same section, and use the offset from there.
+/// 3. Finally, if all that fails, fall back to an offset from the start of the
+/// referenced section.
+static void findUnwindRelocNameAddend(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const RelocationRef &Reloc,
+ uint64_t Addr,
+ StringRef &Name, uint64_t &Addend) {
+ if (Reloc.getSymbol() != Obj->symbol_end()) {
+ Reloc.getSymbol()->getName(Name);
+ Addend = Addr;
+ return;
+ }
+
+ auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl());
+ SectionRef RelocSection = Obj->getRelocationSection(RE);
+
+ uint64_t SectionAddr;
+ RelocSection.getAddress(SectionAddr);
+
+ auto Sym = Symbols.upper_bound(Addr);
+ if (Sym == Symbols.begin()) {
+ // The first symbol in the object is after this reference, the best we can
+ // do is section-relative notation.
+ RelocSection.getName(Name);
+ Addend = Addr - SectionAddr;
+ return;
+ }
+
+ // Go back one so that SymbolAddress <= Addr.
+ --Sym;
+
+ section_iterator SymSection = Obj->section_end();
+ Sym->second.getSection(SymSection);
+ if (RelocSection == *SymSection) {
+ // There's a valid symbol in the same section before this reference.
+ Sym->second.getName(Name);
+ Addend = Addr - Sym->first;
+ return;
+ }
+
+ // There is a symbol before this reference, but it's in a different
+ // section. Probably not helpful to mention it, so use the section name.
+ RelocSection.getName(Name);
+ Addend = Addr - SectionAddr;
+}
+
+static void printUnwindRelocDest(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const RelocationRef &Reloc,
+ uint64_t Addr) {
+ StringRef Name;
+ uint64_t Addend;
+
+ if (!Reloc.getObjectFile())
+ return;
+
+ findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend);
+
+ outs() << Name;
+ if (Addend)
+ outs() << " + " << format("0x%" PRIx64, Addend);
+}
+
+static void
+printMachOCompactUnwindSection(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const SectionRef &CompactUnwind) {
+
+ assert(Obj->isLittleEndian() &&
+ "There should not be a big-endian .o with __compact_unwind");
+
+ bool Is64 = Obj->is64Bit();
+ uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t);
+ uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t);
+
+ StringRef Contents;
+ CompactUnwind.getContents(Contents);
+
+ SmallVector<CompactUnwindEntry, 4> CompactUnwinds;
+
+ // First populate the initial raw offsets, encodings and so on from the entry.
+ for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) {
+ CompactUnwindEntry Entry(Contents.data(), Offset, Is64);
+ CompactUnwinds.push_back(Entry);
+ }
+
+ // Next we need to look at the relocations to find out what objects are
+ // actually being referred to.
+ for (const RelocationRef &Reloc : CompactUnwind.relocations()) {
+ uint64_t RelocAddress;
+ Reloc.getOffset(RelocAddress);
+
+ uint32_t EntryIdx = RelocAddress / EntrySize;
+ uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize;
+ CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx];
+
+ if (OffsetInEntry == 0)
+ Entry.FunctionReloc = Reloc;
+ else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t))
+ Entry.PersonalityReloc = Reloc;
+ else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t))
+ Entry.LSDAReloc = Reloc;
+ else
+ llvm_unreachable("Unexpected relocation in __compact_unwind section");
+ }
+
+ // Finally, we're ready to print the data we've gathered.
+ outs() << "Contents of __compact_unwind section:\n";
+ for (auto &Entry : CompactUnwinds) {
+ outs() << " Entry at offset "
+ << format("0x%" PRIx32, Entry.OffsetInSection) << ":\n";
+
+ // 1. Start of the region this entry applies to.
+ outs() << " start: "
+ << format("0x%" PRIx64, Entry.FunctionAddr) << ' ';
+ printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc,
+ Entry.FunctionAddr);
+ outs() << '\n';
+
+ // 2. Length of the region this entry applies to.
+ outs() << " length: "
+ << format("0x%" PRIx32, Entry.Length) << '\n';
+ // 3. The 32-bit compact encoding.
+ outs() << " compact encoding: "
+ << format("0x%08" PRIx32, Entry.CompactEncoding) << '\n';
+
+ // 4. The personality function, if present.
+ if (Entry.PersonalityReloc.getObjectFile()) {
+ outs() << " personality function: "
+ << format("0x%" PRIx64, Entry.PersonalityAddr) << ' ';
+ printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc,
+ Entry.PersonalityAddr);
+ outs() << '\n';
+ }
+
+ // 5. This entry's language-specific data area.
+ if (Entry.LSDAReloc.getObjectFile()) {
+ outs() << " LSDA: "
+ << format("0x%" PRIx64, Entry.LSDAAddr) << ' ';
+ printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr);
+ outs() << '\n';
+ }
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// __unwind_info section dumping
+//===----------------------------------------------------------------------===//
+
+static void printRegularSecondLevelUnwindPage(const char *PageStart) {
+ const char *Pos = PageStart;
+ uint32_t Kind = readNext<uint32_t>(Pos);
+ (void)Kind;
+ assert(Kind == 2 && "kind for a regular 2nd level index should be 2");
+
+ uint16_t EntriesStart = readNext<uint16_t>(Pos);
+ uint16_t NumEntries = readNext<uint16_t>(Pos);
+
+ Pos = PageStart + EntriesStart;
+ for (unsigned i = 0; i < NumEntries; ++i) {
+ uint32_t FunctionOffset = readNext<uint32_t>(Pos);
+ uint32_t Encoding = readNext<uint32_t>(Pos);
+
+ outs() << " [" << i << "]: "
+ << "function offset="
+ << format("0x%08" PRIx32, FunctionOffset) << ", "
+ << "encoding="
+ << format("0x%08" PRIx32, Encoding)
+ << '\n';
+ }
+}
+
+static void printCompressedSecondLevelUnwindPage(
+ const char *PageStart, uint32_t FunctionBase,
+ const SmallVectorImpl<uint32_t> &CommonEncodings) {
+ const char *Pos = PageStart;
+ uint32_t Kind = readNext<uint32_t>(Pos);
+ (void)Kind;
+ assert(Kind == 3 && "kind for a compressed 2nd level index should be 3");
+
+ uint16_t EntriesStart = readNext<uint16_t>(Pos);
+ uint16_t NumEntries = readNext<uint16_t>(Pos);
+
+ uint16_t EncodingsStart = readNext<uint16_t>(Pos);
+ readNext<uint16_t>(Pos);
+ const auto *PageEncodings = reinterpret_cast<const support::ulittle32_t *>(
+ PageStart + EncodingsStart);
+
+ Pos = PageStart + EntriesStart;
+ for (unsigned i = 0; i < NumEntries; ++i) {
+ uint32_t Entry = readNext<uint32_t>(Pos);
+ uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff);
+ uint32_t EncodingIdx = Entry >> 24;
+
+ uint32_t Encoding;
+ if (EncodingIdx < CommonEncodings.size())
+ Encoding = CommonEncodings[EncodingIdx];
+ else
+ Encoding = PageEncodings[EncodingIdx - CommonEncodings.size()];
+
+ outs() << " [" << i << "]: "
+ << "function offset="
+ << format("0x%08" PRIx32, FunctionOffset) << ", "
+ << "encoding[" << EncodingIdx << "]="
+ << format("0x%08" PRIx32, Encoding)
+ << '\n';
+ }
+}
+
+static void
+printMachOUnwindInfoSection(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const SectionRef &UnwindInfo) {
+
+ assert(Obj->isLittleEndian() &&
+ "There should not be a big-endian .o with __unwind_info");
+
+ outs() << "Contents of __unwind_info section:\n";
+
+ StringRef Contents;
+ UnwindInfo.getContents(Contents);
+ const char *Pos = Contents.data();
+
+ //===----------------------------------
+ // Section header
+ //===----------------------------------
+
+ uint32_t Version = readNext<uint32_t>(Pos);
+ outs() << " Version: "
+ << format("0x%" PRIx32, Version) << '\n';
+ assert(Version == 1 && "only understand version 1");
+
+ uint32_t CommonEncodingsStart = readNext<uint32_t>(Pos);
+ outs() << " Common encodings array section offset: "
+ << format("0x%" PRIx32, CommonEncodingsStart) << '\n';
+ uint32_t NumCommonEncodings = readNext<uint32_t>(Pos);
+ outs() << " Number of common encodings in array: "
+ << format("0x%" PRIx32, NumCommonEncodings) << '\n';
+
+ uint32_t PersonalitiesStart = readNext<uint32_t>(Pos);
+ outs() << " Personality function array section offset: "
+ << format("0x%" PRIx32, PersonalitiesStart) << '\n';
+ uint32_t NumPersonalities = readNext<uint32_t>(Pos);
+ outs() << " Number of personality functions in array: "
+ << format("0x%" PRIx32, NumPersonalities) << '\n';
+
+ uint32_t IndicesStart = readNext<uint32_t>(Pos);
+ outs() << " Index array section offset: "
+ << format("0x%" PRIx32, IndicesStart) << '\n';
+ uint32_t NumIndices = readNext<uint32_t>(Pos);
+ outs() << " Number of indices in array: "
+ << format("0x%" PRIx32, NumIndices) << '\n';
+
+ //===----------------------------------
+ // A shared list of common encodings
+ //===----------------------------------
+
+ // These occupy indices in the range [0, N] whenever an encoding is referenced
+ // from a compressed 2nd level index table. In practice the linker only
+ // creates ~128 of these, so that indices are available to embed encodings in
+ // the 2nd level index.
+
+ SmallVector<uint32_t, 64> CommonEncodings;
+ outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n";
+ Pos = Contents.data() + CommonEncodingsStart;
+ for (unsigned i = 0; i < NumCommonEncodings; ++i) {
+ uint32_t Encoding = readNext<uint32_t>(Pos);
+ CommonEncodings.push_back(Encoding);
+
+ outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32, Encoding)
+ << '\n';
+ }
+
+
+ //===----------------------------------
+ // Personality functions used in this executable
+ //===----------------------------------
+
+ // There should be only a handful of these (one per source language,
+ // roughly). Particularly since they only get 2 bits in the compact encoding.
+
+ outs() << " Personality functions: (count = " << NumPersonalities << ")\n";
+ Pos = Contents.data() + PersonalitiesStart;
+ for (unsigned i = 0; i < NumPersonalities; ++i) {
+ uint32_t PersonalityFn = readNext<uint32_t>(Pos);
+ outs() << " personality[" << i + 1
+ << "]: " << format("0x%08" PRIx32, PersonalityFn) << '\n';
+ }
+
+ //===----------------------------------
+ // The level 1 index entries
+ //===----------------------------------
+
+ // These specify an approximate place to start searching for the more detailed
+ // information, sorted by PC.
+
+ struct IndexEntry {
+ uint32_t FunctionOffset;
+ uint32_t SecondLevelPageStart;
+ uint32_t LSDAStart;
+ };
+
+ SmallVector<IndexEntry, 4> IndexEntries;
+
+ outs() << " Top level indices: (count = " << NumIndices << ")\n";
+ Pos = Contents.data() + IndicesStart;
+ for (unsigned i = 0; i < NumIndices; ++i) {
+ IndexEntry Entry;
+
+ Entry.FunctionOffset = readNext<uint32_t>(Pos);
+ Entry.SecondLevelPageStart = readNext<uint32_t>(Pos);
+ Entry.LSDAStart = readNext<uint32_t>(Pos);
+ IndexEntries.push_back(Entry);
+
+ outs() << " [" << i << "]: "
+ << "function offset="
+ << format("0x%08" PRIx32, Entry.FunctionOffset) << ", "
+ << "2nd level page offset="
+ << format("0x%08" PRIx32, Entry.SecondLevelPageStart) << ", "
+ << "LSDA offset="
+ << format("0x%08" PRIx32, Entry.LSDAStart) << '\n';
+ }
+
+
+ //===----------------------------------
+ // Next come the LSDA tables
+ //===----------------------------------
+
+ // The LSDA layout is rather implicit: it's a contiguous array of entries from
+ // the first top-level index's LSDAOffset to the last (sentinel).
+
+ outs() << " LSDA descriptors:\n";
+ Pos = Contents.data() + IndexEntries[0].LSDAStart;
+ int NumLSDAs = (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) /
+ (2 * sizeof(uint32_t));
+ for (int i = 0; i < NumLSDAs; ++i) {
+ uint32_t FunctionOffset = readNext<uint32_t>(Pos);
+ uint32_t LSDAOffset = readNext<uint32_t>(Pos);
+ outs() << " [" << i << "]: "
+ << "function offset="
+ << format("0x%08" PRIx32, FunctionOffset) << ", "
+ << "LSDA offset="
+ << format("0x%08" PRIx32, LSDAOffset) << '\n';
+ }
+
+ //===----------------------------------
+ // Finally, the 2nd level indices
+ //===----------------------------------
+
+ // Generally these are 4K in size, and have 2 possible forms:
+ // + Regular stores up to 511 entries with disparate encodings
+ // + Compressed stores up to 1021 entries if few enough compact encoding
+ // values are used.
+ outs() << " Second level indices:\n";
+ for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) {
+ // The final sentinel top-level index has no associated 2nd level page
+ if (IndexEntries[i].SecondLevelPageStart == 0)
+ break;
+
+ outs() << " Second level index[" << i << "]: "
+ << "offset in section="
+ << format("0x%08" PRIx32, IndexEntries[i].SecondLevelPageStart)
+ << ", "
+ << "base function offset="
+ << format("0x%08" PRIx32, IndexEntries[i].FunctionOffset) << '\n';
+
+ Pos = Contents.data() + IndexEntries[i].SecondLevelPageStart;
+ uint32_t Kind = *reinterpret_cast<const support::ulittle32_t *>(Pos);
+ if (Kind == 2)
+ printRegularSecondLevelUnwindPage(Pos);
+ else if (Kind == 3)
+ printCompressedSecondLevelUnwindPage(Pos, IndexEntries[i].FunctionOffset,
+ CommonEncodings);
+ else
+ llvm_unreachable("Do not know how to print this kind of 2nd level page");
+
+ }
+}
+
+void llvm::printMachOUnwindInfo(const MachOObjectFile *Obj) {
+ std::map<uint64_t, SymbolRef> Symbols;
+ for (const SymbolRef &SymRef : Obj->symbols()) {
+ // Discard any undefined or absolute symbols. They're not going to take part
+ // in the convenience lookup for unwind info and just take up resources.
+ section_iterator Section = Obj->section_end();
+ SymRef.getSection(Section);
+ if (Section == Obj->section_end())
+ continue;
+
+ uint64_t Addr;
+ SymRef.getAddress(Addr);
+ Symbols.insert(std::make_pair(Addr, SymRef));
+ }
+
+ for (const SectionRef &Section : Obj->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ if (SectName == "__compact_unwind")
+ printMachOCompactUnwindSection(Obj, Symbols, Section);
+ else if (SectName == "__unwind_info")
+ printMachOUnwindInfoSection(Obj, Symbols, Section);
+ else if (SectName == "__eh_frame")
+ outs() << "llvm-objdump: warning: unhandled __eh_frame section\n";
+
+ }
+}
+
+static void PrintMachHeader(uint32_t magic, uint32_t cputype,
+ uint32_t cpusubtype, uint32_t filetype,
+ uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags,
+ bool verbose) {
+ outs() << "Mach header\n";
+ outs() << " magic cputype cpusubtype caps filetype ncmds "
+ "sizeofcmds flags\n";
+ if (verbose) {
+ if (magic == MachO::MH_MAGIC)
+ outs() << " MH_MAGIC";
+ else if (magic == MachO::MH_MAGIC_64)
+ outs() << "MH_MAGIC_64";
+ else
+ outs() << format(" 0x%08" PRIx32, magic);
+ switch (cputype) {
+ case MachO::CPU_TYPE_I386:
+ outs() << " I386";
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_I386_ALL:
+ outs() << " ALL";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
}
- 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();
- }
- }
+ break;
+ case MachO::CPU_TYPE_X86_64:
+ outs() << " X86_64";
+ case MachO::CPU_SUBTYPE_X86_64_ALL:
+ outs() << " ALL";
+ break;
+ case MachO::CPU_SUBTYPE_X86_64_H:
+ outs() << " Haswell";
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ case MachO::CPU_TYPE_ARM:
+ outs() << " ARM";
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_ARM_ALL:
+ outs() << " ALL";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V4T:
+ outs() << " V4T";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V5TEJ:
+ outs() << " V5TEJ";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_XSCALE:
+ outs() << " XSCALE";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V6:
+ outs() << " V6";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V6M:
+ outs() << " V6M";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7:
+ outs() << " V7";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7EM:
+ outs() << " V7EM";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7K:
+ outs() << " V7K";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7M:
+ outs() << " V7M";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7S:
+ outs() << " V7S";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_ARM64:
+ outs() << " ARM64";
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_ARM64_ALL:
+ outs() << " ALL";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_POWERPC:
+ outs() << " PPC";
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_POWERPC_ALL:
+ outs() << " ALL";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_POWERPC64:
+ outs() << " PPC64";
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_POWERPC_ALL:
+ outs() << " ALL";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ }
+ break;
+ }
+ if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) {
+ outs() << " LIB64";
+ } else {
+ outs() << format(" 0x%02" PRIx32,
+ (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
+ }
+ switch (filetype) {
+ case MachO::MH_OBJECT:
+ outs() << " OBJECT";
+ break;
+ case MachO::MH_EXECUTE:
+ outs() << " EXECUTE";
+ break;
+ case MachO::MH_FVMLIB:
+ outs() << " FVMLIB";
+ break;
+ case MachO::MH_CORE:
+ outs() << " CORE";
+ break;
+ case MachO::MH_PRELOAD:
+ outs() << " PRELOAD";
+ break;
+ case MachO::MH_DYLIB:
+ outs() << " DYLIB";
+ break;
+ case MachO::MH_DYLIB_STUB:
+ outs() << " DYLIB_STUB";
+ break;
+ case MachO::MH_DYLINKER:
+ outs() << " DYLINKER";
+ break;
+ case MachO::MH_BUNDLE:
+ outs() << " BUNDLE";
+ break;
+ case MachO::MH_DSYM:
+ outs() << " DSYM";
+ break;
+ case MachO::MH_KEXT_BUNDLE:
+ outs() << " KEXTBUNDLE";
+ break;
+ default:
+ outs() << format(" %10u", filetype);
+ break;
+ }
+ outs() << format(" %5u", ncmds);
+ outs() << format(" %10u", sizeofcmds);
+ uint32_t f = flags;
+ if (f & MachO::MH_NOUNDEFS) {
+ outs() << " NOUNDEFS";
+ f &= ~MachO::MH_NOUNDEFS;
+ }
+ if (f & MachO::MH_INCRLINK) {
+ outs() << " INCRLINK";
+ f &= ~MachO::MH_INCRLINK;
+ }
+ if (f & MachO::MH_DYLDLINK) {
+ outs() << " DYLDLINK";
+ f &= ~MachO::MH_DYLDLINK;
+ }
+ if (f & MachO::MH_BINDATLOAD) {
+ outs() << " BINDATLOAD";
+ f &= ~MachO::MH_BINDATLOAD;
+ }
+ if (f & MachO::MH_PREBOUND) {
+ outs() << " PREBOUND";
+ f &= ~MachO::MH_PREBOUND;
+ }
+ if (f & MachO::MH_SPLIT_SEGS) {
+ outs() << " SPLIT_SEGS";
+ f &= ~MachO::MH_SPLIT_SEGS;
+ }
+ if (f & MachO::MH_LAZY_INIT) {
+ outs() << " LAZY_INIT";
+ f &= ~MachO::MH_LAZY_INIT;
+ }
+ if (f & MachO::MH_TWOLEVEL) {
+ outs() << " TWOLEVEL";
+ f &= ~MachO::MH_TWOLEVEL;
+ }
+ if (f & MachO::MH_FORCE_FLAT) {
+ outs() << " FORCE_FLAT";
+ f &= ~MachO::MH_FORCE_FLAT;
+ }
+ if (f & MachO::MH_NOMULTIDEFS) {
+ outs() << " NOMULTIDEFS";
+ f &= ~MachO::MH_NOMULTIDEFS;
+ }
+ if (f & MachO::MH_NOFIXPREBINDING) {
+ outs() << " NOFIXPREBINDING";
+ f &= ~MachO::MH_NOFIXPREBINDING;
+ }
+ if (f & MachO::MH_PREBINDABLE) {
+ outs() << " PREBINDABLE";
+ f &= ~MachO::MH_PREBINDABLE;
+ }
+ if (f & MachO::MH_ALLMODSBOUND) {
+ outs() << " ALLMODSBOUND";
+ f &= ~MachO::MH_ALLMODSBOUND;
+ }
+ if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) {
+ outs() << " SUBSECTIONS_VIA_SYMBOLS";
+ f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS;
+ }
+ if (f & MachO::MH_CANONICAL) {
+ outs() << " CANONICAL";
+ f &= ~MachO::MH_CANONICAL;
+ }
+ if (f & MachO::MH_WEAK_DEFINES) {
+ outs() << " WEAK_DEFINES";
+ f &= ~MachO::MH_WEAK_DEFINES;
+ }
+ if (f & MachO::MH_BINDS_TO_WEAK) {
+ outs() << " BINDS_TO_WEAK";
+ f &= ~MachO::MH_BINDS_TO_WEAK;
+ }
+ if (f & MachO::MH_ALLOW_STACK_EXECUTION) {
+ outs() << " ALLOW_STACK_EXECUTION";
+ f &= ~MachO::MH_ALLOW_STACK_EXECUTION;
+ }
+ if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) {
+ outs() << " DEAD_STRIPPABLE_DYLIB";
+ f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB;
+ }
+ if (f & MachO::MH_PIE) {
+ outs() << " PIE";
+ f &= ~MachO::MH_PIE;
+ }
+ if (f & MachO::MH_NO_REEXPORTED_DYLIBS) {
+ outs() << " NO_REEXPORTED_DYLIBS";
+ f &= ~MachO::MH_NO_REEXPORTED_DYLIBS;
+ }
+ if (f & MachO::MH_HAS_TLV_DESCRIPTORS) {
+ outs() << " MH_HAS_TLV_DESCRIPTORS";
+ f &= ~MachO::MH_HAS_TLV_DESCRIPTORS;
+ }
+ if (f & MachO::MH_NO_HEAP_EXECUTION) {
+ outs() << " MH_NO_HEAP_EXECUTION";
+ f &= ~MachO::MH_NO_HEAP_EXECUTION;
+ }
+ if (f & MachO::MH_APP_EXTENSION_SAFE) {
+ outs() << " APP_EXTENSION_SAFE";
+ f &= ~MachO::MH_APP_EXTENSION_SAFE;
+ }
+ if (f != 0 || flags == 0)
+ outs() << format(" 0x%08" PRIx32, f);
+ } else {
+ outs() << format(" 0x%08" PRIx32, magic);
+ outs() << format(" %7d", cputype);
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ outs() << format(" 0x%02" PRIx32,
+ (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
+ outs() << format(" %10u", filetype);
+ outs() << format(" %5u", ncmds);
+ outs() << format(" %10u", sizeofcmds);
+ outs() << format(" 0x%08" PRIx32, flags);
+ }
+ outs() << "\n";
+}
- 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;
- }
+static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize,
+ StringRef SegName, uint64_t vmaddr,
+ uint64_t vmsize, uint64_t fileoff,
+ uint64_t filesize, uint32_t maxprot,
+ uint32_t initprot, uint32_t nsects,
+ uint32_t flags, uint32_t object_size,
+ bool verbose) {
+ uint64_t expected_cmdsize;
+ if (cmd == MachO::LC_SEGMENT) {
+ outs() << " cmd LC_SEGMENT\n";
+ expected_cmdsize = nsects;
+ expected_cmdsize *= sizeof(struct MachO::section);
+ expected_cmdsize += sizeof(struct MachO::segment_command);
+ } else {
+ outs() << " cmd LC_SEGMENT_64\n";
+ expected_cmdsize = nsects;
+ expected_cmdsize *= sizeof(struct MachO::section_64);
+ expected_cmdsize += sizeof(struct MachO::segment_command_64);
+ }
+ outs() << " cmdsize " << cmdsize;
+ if (cmdsize != expected_cmdsize)
+ outs() << " Inconsistent size\n";
+ else
+ outs() << "\n";
+ outs() << " segname " << SegName << "\n";
+ if (cmd == MachO::LC_SEGMENT_64) {
+ outs() << " vmaddr " << format("0x%016" PRIx64, vmaddr) << "\n";
+ outs() << " vmsize " << format("0x%016" PRIx64, vmsize) << "\n";
+ } else {
+ outs() << " vmaddr " << format("0x%08" PRIx32, vmaddr) << "\n";
+ outs() << " vmsize " << format("0x%08" PRIx32, vmsize) << "\n";
+ }
+ outs() << " fileoff " << fileoff;
+ if (fileoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " filesize " << filesize;
+ if (fileoff + filesize > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ if (verbose) {
+ if ((maxprot &
+ ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE |
+ MachO::VM_PROT_EXECUTE)) != 0)
+ outs() << " maxprot ?" << format("0x%08" PRIx32, maxprot) << "\n";
+ else {
+ if (maxprot & MachO::VM_PROT_READ)
+ outs() << " maxprot r";
+ else
+ outs() << " maxprot -";
+ if (maxprot & MachO::VM_PROT_WRITE)
+ outs() << "w";
+ else
+ outs() << "-";
+ if (maxprot & MachO::VM_PROT_EXECUTE)
+ outs() << "x\n";
+ else
+ outs() << "-\n";
+ }
+ if ((initprot &
+ ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE |
+ MachO::VM_PROT_EXECUTE)) != 0)
+ outs() << " initprot ?" << format("0x%08" PRIx32, initprot) << "\n";
+ else {
+ if (initprot & MachO::VM_PROT_READ)
+ outs() << " initprot r";
+ else
+ outs() << " initprot -";
+ if (initprot & MachO::VM_PROT_WRITE)
+ outs() << "w";
+ else
+ outs() << "-";
+ if (initprot & MachO::VM_PROT_EXECUTE)
+ outs() << "x\n";
+ else
+ outs() << "-\n";
+ }
+ } else {
+ outs() << " maxprot " << format("0x%08" PRIx32, maxprot) << "\n";
+ outs() << " initprot " << format("0x%08" PRIx32, initprot) << "\n";
+ }
+ outs() << " nsects " << nsects << "\n";
+ if (verbose) {
+ outs() << " flags";
+ if (flags == 0)
+ outs() << " (none)\n";
+ else {
+ if (flags & MachO::SG_HIGHVM) {
+ outs() << " HIGHVM";
+ flags &= ~MachO::SG_HIGHVM;
+ }
+ if (flags & MachO::SG_FVMLIB) {
+ outs() << " FVMLIB";
+ flags &= ~MachO::SG_FVMLIB;
+ }
+ if (flags & MachO::SG_NORELOC) {
+ outs() << " NORELOC";
+ flags &= ~MachO::SG_NORELOC;
+ }
+ if (flags & MachO::SG_PROTECTED_VERSION_1) {
+ outs() << " PROTECTED_VERSION_1";
+ flags &= ~MachO::SG_PROTECTED_VERSION_1;
+ }
+ if (flags)
+ outs() << format(" 0x%08" PRIx32, flags) << " (unknown flags)\n";
+ else
+ outs() << "\n";
+ }
+ } else {
+ outs() << " flags " << format("0x%" PRIx32, flags) << "\n";
+ }
+}
- 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;
- UnsortedSymbols[Relocs[j].second].getName(SymName);
- UnsortedSymbols[Relocs[j].second].getAddress(Addr);
-
- 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';
- }
- }
+static void PrintSection(const char *sectname, const char *segname,
+ uint64_t addr, uint64_t size, uint32_t offset,
+ uint32_t align, uint32_t reloff, uint32_t nreloc,
+ uint32_t flags, uint32_t reserved1, uint32_t reserved2,
+ uint32_t cmd, const char *sg_segname,
+ uint32_t filetype, uint32_t object_size,
+ bool verbose) {
+ outs() << "Section\n";
+ outs() << " sectname " << format("%.16s\n", sectname);
+ outs() << " segname " << format("%.16s", segname);
+ if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0)
+ outs() << " (does not match segment)\n";
+ else
+ outs() << "\n";
+ if (cmd == MachO::LC_SEGMENT_64) {
+ outs() << " addr " << format("0x%016" PRIx64, addr) << "\n";
+ outs() << " size " << format("0x%016" PRIx64, size);
+ } else {
+ outs() << " addr " << format("0x%08" PRIx32, addr) << "\n";
+ outs() << " size " << format("0x%08" PRIx32, size);
+ }
+ if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " offset " << offset;
+ if (offset > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ uint32_t align_shifted = 1 << align;
+ outs() << " align 2^" << align << " (" << align_shifted << ")\n";
+ outs() << " reloff " << reloff;
+ if (reloff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nreloc " << nreloc;
+ if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ uint32_t section_type = flags & MachO::SECTION_TYPE;
+ if (verbose) {
+ outs() << " type";
+ if (section_type == MachO::S_REGULAR)
+ outs() << " S_REGULAR\n";
+ else if (section_type == MachO::S_ZEROFILL)
+ outs() << " S_ZEROFILL\n";
+ else if (section_type == MachO::S_CSTRING_LITERALS)
+ outs() << " S_CSTRING_LITERALS\n";
+ else if (section_type == MachO::S_4BYTE_LITERALS)
+ outs() << " S_4BYTE_LITERALS\n";
+ else if (section_type == MachO::S_8BYTE_LITERALS)
+ outs() << " S_8BYTE_LITERALS\n";
+ else if (section_type == MachO::S_16BYTE_LITERALS)
+ outs() << " S_16BYTE_LITERALS\n";
+ else if (section_type == MachO::S_LITERAL_POINTERS)
+ outs() << " S_LITERAL_POINTERS\n";
+ else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS)
+ outs() << " S_NON_LAZY_SYMBOL_POINTERS\n";
+ else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS)
+ outs() << " S_LAZY_SYMBOL_POINTERS\n";
+ else if (section_type == MachO::S_SYMBOL_STUBS)
+ outs() << " S_SYMBOL_STUBS\n";
+ else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS)
+ outs() << " S_MOD_INIT_FUNC_POINTERS\n";
+ else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS)
+ outs() << " S_MOD_TERM_FUNC_POINTERS\n";
+ else if (section_type == MachO::S_COALESCED)
+ outs() << " S_COALESCED\n";
+ else if (section_type == MachO::S_INTERPOSING)
+ outs() << " S_INTERPOSING\n";
+ else if (section_type == MachO::S_DTRACE_DOF)
+ outs() << " S_DTRACE_DOF\n";
+ else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS)
+ outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n";
+ else if (section_type == MachO::S_THREAD_LOCAL_REGULAR)
+ outs() << " S_THREAD_LOCAL_REGULAR\n";
+ else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL)
+ outs() << " S_THREAD_LOCAL_ZEROFILL\n";
+ else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES)
+ outs() << " S_THREAD_LOCAL_VARIABLES\n";
+ else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS)
+ outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n";
+ else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS)
+ outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n";
+ else
+ outs() << format("0x%08" PRIx32, section_type) << "\n";
+ outs() << "attributes";
+ uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES;
+ if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS)
+ outs() << " PURE_INSTRUCTIONS";
+ if (section_attributes & MachO::S_ATTR_NO_TOC)
+ outs() << " NO_TOC";
+ if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS)
+ outs() << " STRIP_STATIC_SYMS";
+ if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP)
+ outs() << " NO_DEAD_STRIP";
+ if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT)
+ outs() << " LIVE_SUPPORT";
+ if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE)
+ outs() << " SELF_MODIFYING_CODE";
+ if (section_attributes & MachO::S_ATTR_DEBUG)
+ outs() << " DEBUG";
+ if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS)
+ outs() << " SOME_INSTRUCTIONS";
+ if (section_attributes & MachO::S_ATTR_EXT_RELOC)
+ outs() << " EXT_RELOC";
+ if (section_attributes & MachO::S_ATTR_LOC_RELOC)
+ outs() << " LOC_RELOC";
+ if (section_attributes == 0)
+ outs() << " (none)";
+ outs() << "\n";
+ } else
+ outs() << " flags " << format("0x%08" PRIx32, flags) << "\n";
+ outs() << " reserved1 " << reserved1;
+ if (section_type == MachO::S_SYMBOL_STUBS ||
+ section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
+ section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS)
+ outs() << " (index into indirect symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " reserved2 " << reserved2;
+ if (section_type == MachO::S_SYMBOL_STUBS)
+ outs() << " (size of stubs)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintSymtabLoadCommand(MachO::symtab_command st, uint32_t cputype,
+ uint32_t object_size) {
+ outs() << " cmd LC_SYMTAB\n";
+ outs() << " cmdsize " << st.cmdsize;
+ if (st.cmdsize != sizeof(struct MachO::symtab_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " symoff " << st.symoff;
+ if (st.symoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nsyms " << st.nsyms;
+ uint64_t big_size;
+ if (cputype & MachO::CPU_ARCH_ABI64) {
+ big_size = st.nsyms;
+ big_size *= sizeof(struct MachO::nlist_64);
+ big_size += st.symoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ } else {
+ big_size = st.nsyms;
+ big_size *= sizeof(struct MachO::nlist);
+ big_size += st.symoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ }
+ outs() << " stroff " << st.stroff;
+ if (st.stroff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " strsize " << st.strsize;
+ big_size = st.stroff;
+ big_size += st.strsize;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst,
+ uint32_t nsyms, uint32_t object_size,
+ uint32_t cputype) {
+ outs() << " cmd LC_DYSYMTAB\n";
+ outs() << " cmdsize " << dyst.cmdsize;
+ if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " ilocalsym " << dyst.ilocalsym;
+ if (dyst.ilocalsym > nsyms)
+ outs() << " (greater than the number of symbols)\n";
+ else
+ outs() << "\n";
+ outs() << " nlocalsym " << dyst.nlocalsym;
+ uint64_t big_size;
+ big_size = dyst.ilocalsym;
+ big_size += dyst.nlocalsym;
+ if (big_size > nsyms)
+ outs() << " (past the end of the symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " iextdefsym " << dyst.iextdefsym;
+ if (dyst.iextdefsym > nsyms)
+ outs() << " (greater than the number of symbols)\n";
+ else
+ outs() << "\n";
+ outs() << " nextdefsym " << dyst.nextdefsym;
+ big_size = dyst.iextdefsym;
+ big_size += dyst.nextdefsym;
+ if (big_size > nsyms)
+ outs() << " (past the end of the symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " iundefsym " << dyst.iundefsym;
+ if (dyst.iundefsym > nsyms)
+ outs() << " (greater than the number of symbols)\n";
+ else
+ outs() << "\n";
+ outs() << " nundefsym " << dyst.nundefsym;
+ big_size = dyst.iundefsym;
+ big_size += dyst.nundefsym;
+ if (big_size > nsyms)
+ outs() << " (past the end of the symbol table)\n";
+ else
+ outs() << "\n";
+ outs() << " tocoff " << dyst.tocoff;
+ if (dyst.tocoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " ntoc " << dyst.ntoc;
+ big_size = dyst.ntoc;
+ big_size *= sizeof(struct MachO::dylib_table_of_contents);
+ big_size += dyst.tocoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " modtaboff " << dyst.modtaboff;
+ if (dyst.modtaboff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nmodtab " << dyst.nmodtab;
+ uint64_t modtabend;
+ if (cputype & MachO::CPU_ARCH_ABI64) {
+ modtabend = dyst.nmodtab;
+ modtabend *= sizeof(struct MachO::dylib_module_64);
+ modtabend += dyst.modtaboff;
+ } else {
+ modtabend = dyst.nmodtab;
+ modtabend *= sizeof(struct MachO::dylib_module);
+ modtabend += dyst.modtaboff;
+ }
+ if (modtabend > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " extrefsymoff " << dyst.extrefsymoff;
+ if (dyst.extrefsymoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nextrefsyms " << dyst.nextrefsyms;
+ big_size = dyst.nextrefsyms;
+ big_size *= sizeof(struct MachO::dylib_reference);
+ big_size += dyst.extrefsymoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " indirectsymoff " << dyst.indirectsymoff;
+ if (dyst.indirectsymoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nindirectsyms " << dyst.nindirectsyms;
+ big_size = dyst.nindirectsyms;
+ big_size *= sizeof(uint32_t);
+ big_size += dyst.indirectsymoff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " extreloff " << dyst.extreloff;
+ if (dyst.extreloff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nextrel " << dyst.nextrel;
+ big_size = dyst.nextrel;
+ big_size *= sizeof(struct MachO::relocation_info);
+ big_size += dyst.extreloff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " locreloff " << dyst.locreloff;
+ if (dyst.locreloff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " nlocrel " << dyst.nlocrel;
+ big_size = dyst.nlocrel;
+ big_size *= sizeof(struct MachO::relocation_info);
+ big_size += dyst.locreloff;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc,
+ uint32_t object_size) {
+ if (dc.cmd == MachO::LC_DYLD_INFO)
+ outs() << " cmd LC_DYLD_INFO\n";
+ else
+ outs() << " cmd LC_DYLD_INFO_ONLY\n";
+ outs() << " cmdsize " << dc.cmdsize;
+ if (dc.cmdsize != sizeof(struct MachO::dyld_info_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " rebase_off " << dc.rebase_off;
+ if (dc.rebase_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " rebase_size " << dc.rebase_size;
+ uint64_t big_size;
+ big_size = dc.rebase_off;
+ big_size += dc.rebase_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " bind_off " << dc.bind_off;
+ if (dc.bind_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " bind_size " << dc.bind_size;
+ big_size = dc.bind_off;
+ big_size += dc.bind_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " weak_bind_off " << dc.weak_bind_off;
+ if (dc.weak_bind_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " weak_bind_size " << dc.weak_bind_size;
+ big_size = dc.weak_bind_off;
+ big_size += dc.weak_bind_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " lazy_bind_off " << dc.lazy_bind_off;
+ if (dc.lazy_bind_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " lazy_bind_size " << dc.lazy_bind_size;
+ big_size = dc.lazy_bind_off;
+ big_size += dc.lazy_bind_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " export_off " << dc.export_off;
+ if (dc.export_off > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " export_size " << dc.export_size;
+ big_size = dc.export_off;
+ big_size += dc.export_size;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintDyldLoadCommand(MachO::dylinker_command dyld,
+ const char *Ptr) {
+ if (dyld.cmd == MachO::LC_ID_DYLINKER)
+ outs() << " cmd LC_ID_DYLINKER\n";
+ else if (dyld.cmd == MachO::LC_LOAD_DYLINKER)
+ outs() << " cmd LC_LOAD_DYLINKER\n";
+ else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT)
+ outs() << " cmd LC_DYLD_ENVIRONMENT\n";
+ else
+ outs() << " cmd ?(" << dyld.cmd << ")\n";
+ outs() << " cmdsize " << dyld.cmdsize;
+ if (dyld.cmdsize < sizeof(struct MachO::dylinker_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (dyld.name >= dyld.cmdsize)
+ outs() << " name ?(bad offset " << dyld.name << ")\n";
+ else {
+ const char *P = (const char *)(Ptr)+dyld.name;
+ outs() << " name " << P << " (offset " << dyld.name << ")\n";
+ }
+}
+
+static void PrintUuidLoadCommand(MachO::uuid_command uuid) {
+ outs() << " cmd LC_UUID\n";
+ outs() << " cmdsize " << uuid.cmdsize;
+ if (uuid.cmdsize != sizeof(struct MachO::uuid_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " uuid ";
+ outs() << format("%02" PRIX32, uuid.uuid[0]);
+ outs() << format("%02" PRIX32, uuid.uuid[1]);
+ outs() << format("%02" PRIX32, uuid.uuid[2]);
+ outs() << format("%02" PRIX32, uuid.uuid[3]);
+ outs() << "-";
+ outs() << format("%02" PRIX32, uuid.uuid[4]);
+ outs() << format("%02" PRIX32, uuid.uuid[5]);
+ outs() << "-";
+ outs() << format("%02" PRIX32, uuid.uuid[6]);
+ outs() << format("%02" PRIX32, uuid.uuid[7]);
+ outs() << "-";
+ outs() << format("%02" PRIX32, uuid.uuid[8]);
+ outs() << format("%02" PRIX32, uuid.uuid[9]);
+ outs() << "-";
+ outs() << format("%02" PRIX32, uuid.uuid[10]);
+ outs() << format("%02" PRIX32, uuid.uuid[11]);
+ outs() << format("%02" PRIX32, uuid.uuid[12]);
+ outs() << format("%02" PRIX32, uuid.uuid[13]);
+ outs() << format("%02" PRIX32, uuid.uuid[14]);
+ outs() << format("%02" PRIX32, uuid.uuid[15]);
+ outs() << "\n";
+}
+
+static void PrintVersionMinLoadCommand(MachO::version_min_command vd) {
+ if (vd.cmd == MachO::LC_VERSION_MIN_MACOSX)
+ outs() << " cmd LC_VERSION_MIN_MACOSX\n";
+ else if (vd.cmd == MachO::LC_VERSION_MIN_IPHONEOS)
+ outs() << " cmd LC_VERSION_MIN_IPHONEOS\n";
+ else
+ outs() << " cmd " << vd.cmd << " (?)\n";
+ outs() << " cmdsize " << vd.cmdsize;
+ if (vd.cmdsize != sizeof(struct MachO::version_min_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " version " << ((vd.version >> 16) & 0xffff) << "."
+ << ((vd.version >> 8) & 0xff);
+ if ((vd.version & 0xff) != 0)
+ outs() << "." << (vd.version & 0xff);
+ outs() << "\n";
+ if (vd.sdk == 0)
+ outs() << " sdk n/a\n";
+ else {
+ outs() << " sdk " << ((vd.sdk >> 16) & 0xffff) << "."
+ << ((vd.sdk >> 8) & 0xff);
+ }
+ if ((vd.sdk & 0xff) != 0)
+ outs() << "." << (vd.sdk & 0xff);
+ outs() << "\n";
+}
+
+static void PrintSourceVersionCommand(MachO::source_version_command sd) {
+ outs() << " cmd LC_SOURCE_VERSION\n";
+ outs() << " cmdsize " << sd.cmdsize;
+ if (sd.cmdsize != sizeof(struct MachO::source_version_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ uint64_t a = (sd.version >> 40) & 0xffffff;
+ uint64_t b = (sd.version >> 30) & 0x3ff;
+ uint64_t c = (sd.version >> 20) & 0x3ff;
+ uint64_t d = (sd.version >> 10) & 0x3ff;
+ uint64_t e = sd.version & 0x3ff;
+ outs() << " version " << a << "." << b;
+ if (e != 0)
+ outs() << "." << c << "." << d << "." << e;
+ else if (d != 0)
+ outs() << "." << c << "." << d;
+ else if (c != 0)
+ outs() << "." << c;
+ outs() << "\n";
+}
+
+static void PrintEntryPointCommand(MachO::entry_point_command ep) {
+ outs() << " cmd LC_MAIN\n";
+ outs() << " cmdsize " << ep.cmdsize;
+ if (ep.cmdsize != sizeof(struct MachO::entry_point_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " entryoff " << ep.entryoff << "\n";
+ outs() << " stacksize " << ep.stacksize << "\n";
+}
+
+static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) {
+ if (dl.cmd == MachO::LC_ID_DYLIB)
+ outs() << " cmd LC_ID_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LOAD_DYLIB)
+ outs() << " cmd LC_LOAD_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB)
+ outs() << " cmd LC_LOAD_WEAK_DYLIB\n";
+ else if (dl.cmd == MachO::LC_REEXPORT_DYLIB)
+ outs() << " cmd LC_REEXPORT_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB)
+ outs() << " cmd LC_LAZY_LOAD_DYLIB\n";
+ else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
+ outs() << " cmd LC_LOAD_UPWARD_DYLIB\n";
+ else
+ outs() << " cmd " << dl.cmd << " (unknown)\n";
+ outs() << " cmdsize " << dl.cmdsize;
+ if (dl.cmdsize < sizeof(struct MachO::dylib_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (dl.dylib.name < dl.cmdsize) {
+ const char *P = (const char *)(Ptr)+dl.dylib.name;
+ outs() << " name " << P << " (offset " << dl.dylib.name << ")\n";
+ } else {
+ outs() << " name ?(bad offset " << dl.dylib.name << ")\n";
+ }
+ outs() << " time stamp " << dl.dylib.timestamp << " ";
+ time_t t = dl.dylib.timestamp;
+ outs() << ctime(&t);
+ outs() << " current version ";
+ if (dl.dylib.current_version == 0xffffffff)
+ outs() << "n/a\n";
+ else
+ outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.current_version >> 8) & 0xff) << "."
+ << (dl.dylib.current_version & 0xff) << "\n";
+ outs() << "compatibility version ";
+ if (dl.dylib.compatibility_version == 0xffffffff)
+ outs() << "n/a\n";
+ else
+ outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
+ << (dl.dylib.compatibility_version & 0xff) << "\n";
+}
+
+static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld,
+ uint32_t object_size) {
+ if (ld.cmd == MachO::LC_CODE_SIGNATURE)
+ outs() << " cmd LC_FUNCTION_STARTS\n";
+ else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO)
+ outs() << " cmd LC_SEGMENT_SPLIT_INFO\n";
+ else if (ld.cmd == MachO::LC_FUNCTION_STARTS)
+ outs() << " cmd LC_FUNCTION_STARTS\n";
+ else if (ld.cmd == MachO::LC_DATA_IN_CODE)
+ outs() << " cmd LC_DATA_IN_CODE\n";
+ else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS)
+ outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n";
+ else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT)
+ outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n";
+ else
+ outs() << " cmd " << ld.cmd << " (?)\n";
+ outs() << " cmdsize " << ld.cmdsize;
+ if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " dataoff " << ld.dataoff;
+ if (ld.dataoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " datasize " << ld.datasize;
+ uint64_t big_size = ld.dataoff;
+ big_size += ld.datasize;
+ if (big_size > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+}
+
+static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t ncmds,
+ uint32_t filetype, uint32_t cputype,
+ bool verbose) {
+ StringRef Buf = Obj->getData();
+ MachOObjectFile::LoadCommandInfo Command = Obj->getFirstLoadCommandInfo();
+ for (unsigned i = 0;; ++i) {
+ outs() << "Load command " << i << "\n";
+ if (Command.C.cmd == MachO::LC_SEGMENT) {
+ MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command);
+ const char *sg_segname = SLC.segname;
+ PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr,
+ SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot,
+ SLC.initprot, SLC.nsects, SLC.flags, Buf.size(),
+ verbose);
+ for (unsigned j = 0; j < SLC.nsects; j++) {
+ MachO::section_64 S = Obj->getSection64(Command, j);
+ PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align,
+ S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2,
+ SLC.cmd, sg_segname, filetype, Buf.size(), verbose);
+ }
+ } else if (Command.C.cmd == MachO::LC_SEGMENT_64) {
+ MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command);
+ const char *sg_segname = SLC_64.segname;
+ PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname,
+ SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff,
+ SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot,
+ SLC_64.nsects, SLC_64.flags, Buf.size(), verbose);
+ for (unsigned j = 0; j < SLC_64.nsects; j++) {
+ MachO::section_64 S_64 = Obj->getSection64(Command, j);
+ PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size,
+ S_64.offset, S_64.align, S_64.reloff, S_64.nreloc,
+ S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd,
+ sg_segname, filetype, Buf.size(), verbose);
+ }
+ } else if (Command.C.cmd == MachO::LC_SYMTAB) {
+ MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
+ PrintSymtabLoadCommand(Symtab, cputype, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_DYSYMTAB) {
+ MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand();
+ MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
+ PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(), cputype);
+ } else if (Command.C.cmd == MachO::LC_DYLD_INFO ||
+ Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) {
+ MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command);
+ PrintDyldInfoLoadCommand(DyldInfo, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER ||
+ Command.C.cmd == MachO::LC_ID_DYLINKER ||
+ Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) {
+ MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command);
+ PrintDyldLoadCommand(Dyld, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_UUID) {
+ MachO::uuid_command Uuid = Obj->getUuidCommand(Command);
+ PrintUuidLoadCommand(Uuid);
+ } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX) {
+ MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command);
+ PrintVersionMinLoadCommand(Vd);
+ } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) {
+ MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command);
+ PrintSourceVersionCommand(Sd);
+ } else if (Command.C.cmd == MachO::LC_MAIN) {
+ MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command);
+ PrintEntryPointCommand(Ep);
+ } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB) {
+ MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command);
+ PrintDylibCommand(Dl, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE ||
+ Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO ||
+ Command.C.cmd == MachO::LC_FUNCTION_STARTS ||
+ Command.C.cmd == MachO::LC_DATA_IN_CODE ||
+ Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS ||
+ Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) {
+ MachO::linkedit_data_command Ld =
+ Obj->getLinkeditDataLoadCommand(Command);
+ PrintLinkEditDataCommand(Ld, Buf.size());
+ } else {
+ outs() << " cmd ?(" << format("0x%08" PRIx32, Command.C.cmd)
+ << ")\n";
+ outs() << " cmdsize " << Command.C.cmdsize << "\n";
+ // TODO: get and print the raw bytes of the load command.
+ }
+ // TODO: print all the other kinds of load commands.
+ if (i == ncmds - 1)
+ break;
+ else
+ Command = Obj->getNextLoadCommandInfo(Command);
+ }
+}
+
+static void getAndPrintMachHeader(const MachOObjectFile *Obj, uint32_t &ncmds,
+ uint32_t &filetype, uint32_t &cputype,
+ bool verbose) {
+ if (Obj->is64Bit()) {
+ MachO::mach_header_64 H_64;
+ H_64 = Obj->getHeader64();
+ PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype,
+ H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose);
+ ncmds = H_64.ncmds;
+ filetype = H_64.filetype;
+ cputype = H_64.cputype;
+ } else {
+ MachO::mach_header H;
+ H = Obj->getHeader();
+ PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds,
+ H.sizeofcmds, H.flags, verbose);
+ ncmds = H.ncmds;
+ filetype = H.filetype;
+ cputype = H.cputype;
+ }
+}
- emitDOTFile((f.getName().str() + ".dot").c_str(), f, IP.get());
+void llvm::printMachOFileHeader(const object::ObjectFile *Obj) {
+ const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
+ uint32_t ncmds = 0;
+ uint32_t filetype = 0;
+ uint32_t cputype = 0;
+ getAndPrintMachHeader(file, ncmds, filetype, cputype, true);
+ PrintLoadCommands(file, ncmds, filetype, cputype, true);
+}
+
+//===----------------------------------------------------------------------===//
+// export trie dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOExportsTrie(const object::MachOObjectFile *Obj) {
+ for (const llvm::object::ExportEntry &Entry : Obj->exports()) {
+ uint64_t Flags = Entry.flags();
+ bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT);
+ bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION);
+ bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
+ MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL);
+ bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
+ MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE);
+ bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER);
+ if (ReExport)
+ outs() << "[re-export] ";
+ else
+ outs()
+ << format("0x%08llX ", Entry.address()); // FIXME:add in base address
+ outs() << Entry.name();
+ if (WeakDef || ThreadLocal || Resolver || Abs) {
+ bool NeedsComma = false;
+ outs() << " [";
+ if (WeakDef) {
+ outs() << "weak_def";
+ NeedsComma = true;
}
+ if (ThreadLocal) {
+ if (NeedsComma)
+ outs() << ", ";
+ outs() << "per-thread";
+ NeedsComma = true;
+ }
+ if (Abs) {
+ if (NeedsComma)
+ outs() << ", ";
+ outs() << "absolute";
+ NeedsComma = true;
+ }
+ if (Resolver) {
+ if (NeedsComma)
+ outs() << ", ";
+ outs() << format("resolver=0x%08llX", Entry.other());
+ NeedsComma = true;
+ }
+ outs() << "]";
+ }
+ if (ReExport) {
+ StringRef DylibName = "unknown";
+ int Ordinal = Entry.other() - 1;
+ Obj->getLibraryShortNameByIndex(Ordinal, DylibName);
+ if (Entry.otherName().empty())
+ outs() << " (from " << DylibName << ")";
+ else
+ outs() << " (" << Entry.otherName() << " from " << DylibName << ")";
+ }
+ outs() << "\n";
+ }
+}
+
+
+//===----------------------------------------------------------------------===//
+// rebase table dumping
+//===----------------------------------------------------------------------===//
+
+namespace {
+class SegInfo {
+public:
+ SegInfo(const object::MachOObjectFile *Obj);
+
+ StringRef segmentName(uint32_t SegIndex);
+ StringRef sectionName(uint32_t SegIndex, uint64_t SegOffset);
+ uint64_t address(uint32_t SegIndex, uint64_t SegOffset);
+
+private:
+ struct SectionInfo {
+ uint64_t Address;
+ uint64_t Size;
+ StringRef SectionName;
+ StringRef SegmentName;
+ uint64_t OffsetInSegment;
+ uint64_t SegmentStartAddress;
+ uint32_t SegmentIndex;
+ };
+ const SectionInfo &findSection(uint32_t SegIndex, uint64_t SegOffset);
+ SmallVector<SectionInfo, 32> Sections;
+};
+}
+
+SegInfo::SegInfo(const object::MachOObjectFile *Obj) {
+ // Build table of sections so segIndex/offset pairs can be translated.
+ uint32_t CurSegIndex = 0;
+ StringRef CurSegName;
+ uint64_t CurSegAddress;
+ for (const SectionRef &Section : Obj->sections()) {
+ SectionInfo Info;
+ if (error(Section.getName(Info.SectionName)))
+ return;
+ if (error(Section.getAddress(Info.Address)))
+ return;
+ if (error(Section.getSize(Info.Size)))
+ return;
+ Info.SegmentName =
+ Obj->getSectionFinalSegmentName(Section.getRawDataRefImpl());
+ if (!Info.SegmentName.equals(CurSegName)) {
+ ++CurSegIndex;
+ CurSegName = Info.SegmentName;
+ CurSegAddress = Info.Address;
}
+ Info.SegmentIndex = CurSegIndex - 1;
+ Info.OffsetInSegment = Info.Address - CurSegAddress;
+ Info.SegmentStartAddress = CurSegAddress;
+ Sections.push_back(Info);
+ }
+}
+
+StringRef SegInfo::segmentName(uint32_t SegIndex) {
+ for (const SectionInfo &SI : Sections) {
+ if (SI.SegmentIndex == SegIndex)
+ return SI.SegmentName;
+ }
+ llvm_unreachable("invalid segIndex");
+}
+
+const SegInfo::SectionInfo &SegInfo::findSection(uint32_t SegIndex,
+ uint64_t OffsetInSeg) {
+ for (const SectionInfo &SI : Sections) {
+ if (SI.SegmentIndex != SegIndex)
+ continue;
+ if (SI.OffsetInSegment > OffsetInSeg)
+ continue;
+ if (OffsetInSeg >= (SI.OffsetInSegment + SI.Size))
+ continue;
+ return SI;
+ }
+ llvm_unreachable("segIndex and offset not in any section");
+}
+
+StringRef SegInfo::sectionName(uint32_t SegIndex, uint64_t OffsetInSeg) {
+ return findSection(SegIndex, OffsetInSeg).SectionName;
+}
+
+uint64_t SegInfo::address(uint32_t SegIndex, uint64_t OffsetInSeg) {
+ const SectionInfo &SI = findSection(SegIndex, OffsetInSeg);
+ return SI.SegmentStartAddress + OffsetInSeg;
+}
+
+void llvm::printMachORebaseTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address type\n";
+ for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable()) {
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ StringRef SegmentName = sectionTable.segmentName(SegIndex);
+ StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+
+ // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer
+ outs() << format("%-8s %-18s 0x%08" PRIX64 " %s\n",
+ SegmentName.str().c_str(),
+ SectionName.str().c_str(), Address,
+ Entry.typeName().str().c_str());
}
}
projects / oota-llvm.git / blobdiff