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-rw-r--r--contrib/llvm/tools/llvm-objdump/COFFDump.cpp593
-rw-r--r--contrib/llvm/tools/llvm-objdump/ELFDump.cpp86
-rw-r--r--contrib/llvm/tools/llvm-objdump/MachODump.cpp9000
-rw-r--r--contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp1629
-rw-r--r--contrib/llvm/tools/llvm-objdump/llvm-objdump.h87
5 files changed, 11395 insertions, 0 deletions
diff --git a/contrib/llvm/tools/llvm-objdump/COFFDump.cpp b/contrib/llvm/tools/llvm-objdump/COFFDump.cpp
new file mode 100644
index 0000000..f286351
--- /dev/null
+++ b/contrib/llvm/tools/llvm-objdump/COFFDump.cpp
@@ -0,0 +1,593 @@
+//===-- COFFDump.cpp - COFF-specific dumper ---------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file implements the COFF-specific dumper for llvm-objdump.
+/// It outputs the Win64 EH data structures as plain text.
+/// The encoding of the unwind codes is described in MSDN:
+/// http://msdn.microsoft.com/en-us/library/ck9asaa9.aspx
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm-objdump.h"
+#include "llvm/Object/COFF.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/Win64EH.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <cstring>
+#include <system_error>
+
+using namespace llvm;
+using namespace object;
+using namespace llvm::Win64EH;
+
+// Returns the name of the unwind code.
+static StringRef getUnwindCodeTypeName(uint8_t Code) {
+ switch(Code) {
+ default: llvm_unreachable("Invalid unwind code");
+ case UOP_PushNonVol: return "UOP_PushNonVol";
+ case UOP_AllocLarge: return "UOP_AllocLarge";
+ case UOP_AllocSmall: return "UOP_AllocSmall";
+ case UOP_SetFPReg: return "UOP_SetFPReg";
+ case UOP_SaveNonVol: return "UOP_SaveNonVol";
+ case UOP_SaveNonVolBig: return "UOP_SaveNonVolBig";
+ case UOP_SaveXMM128: return "UOP_SaveXMM128";
+ case UOP_SaveXMM128Big: return "UOP_SaveXMM128Big";
+ case UOP_PushMachFrame: return "UOP_PushMachFrame";
+ }
+}
+
+// Returns the name of a referenced register.
+static StringRef getUnwindRegisterName(uint8_t Reg) {
+ switch(Reg) {
+ default: llvm_unreachable("Invalid register");
+ case 0: return "RAX";
+ case 1: return "RCX";
+ case 2: return "RDX";
+ case 3: return "RBX";
+ case 4: return "RSP";
+ case 5: return "RBP";
+ case 6: return "RSI";
+ case 7: return "RDI";
+ case 8: return "R8";
+ case 9: return "R9";
+ case 10: return "R10";
+ case 11: return "R11";
+ case 12: return "R12";
+ case 13: return "R13";
+ case 14: return "R14";
+ case 15: return "R15";
+ }
+}
+
+// Calculates the number of array slots required for the unwind code.
+static unsigned getNumUsedSlots(const UnwindCode &UnwindCode) {
+ switch (UnwindCode.getUnwindOp()) {
+ default: llvm_unreachable("Invalid unwind code");
+ case UOP_PushNonVol:
+ case UOP_AllocSmall:
+ case UOP_SetFPReg:
+ case UOP_PushMachFrame:
+ return 1;
+ case UOP_SaveNonVol:
+ case UOP_SaveXMM128:
+ return 2;
+ case UOP_SaveNonVolBig:
+ case UOP_SaveXMM128Big:
+ return 3;
+ case UOP_AllocLarge:
+ return (UnwindCode.getOpInfo() == 0) ? 2 : 3;
+ }
+}
+
+// Prints one unwind code. Because an unwind code can occupy up to 3 slots in
+// the unwind codes array, this function requires that the correct number of
+// slots is provided.
+static void printUnwindCode(ArrayRef<UnwindCode> UCs) {
+ assert(UCs.size() >= getNumUsedSlots(UCs[0]));
+ outs() << format(" 0x%02x: ", unsigned(UCs[0].u.CodeOffset))
+ << getUnwindCodeTypeName(UCs[0].getUnwindOp());
+ switch (UCs[0].getUnwindOp()) {
+ case UOP_PushNonVol:
+ outs() << " " << getUnwindRegisterName(UCs[0].getOpInfo());
+ break;
+ case UOP_AllocLarge:
+ if (UCs[0].getOpInfo() == 0) {
+ outs() << " " << UCs[1].FrameOffset;
+ } else {
+ outs() << " " << UCs[1].FrameOffset
+ + (static_cast<uint32_t>(UCs[2].FrameOffset) << 16);
+ }
+ break;
+ case UOP_AllocSmall:
+ outs() << " " << ((UCs[0].getOpInfo() + 1) * 8);
+ break;
+ case UOP_SetFPReg:
+ outs() << " ";
+ break;
+ case UOP_SaveNonVol:
+ outs() << " " << getUnwindRegisterName(UCs[0].getOpInfo())
+ << format(" [0x%04x]", 8 * UCs[1].FrameOffset);
+ break;
+ case UOP_SaveNonVolBig:
+ outs() << " " << getUnwindRegisterName(UCs[0].getOpInfo())
+ << format(" [0x%08x]", UCs[1].FrameOffset
+ + (static_cast<uint32_t>(UCs[2].FrameOffset) << 16));
+ break;
+ case UOP_SaveXMM128:
+ outs() << " XMM" << static_cast<uint32_t>(UCs[0].getOpInfo())
+ << format(" [0x%04x]", 16 * UCs[1].FrameOffset);
+ break;
+ case UOP_SaveXMM128Big:
+ outs() << " XMM" << UCs[0].getOpInfo()
+ << format(" [0x%08x]", UCs[1].FrameOffset
+ + (static_cast<uint32_t>(UCs[2].FrameOffset) << 16));
+ break;
+ case UOP_PushMachFrame:
+ outs() << " " << (UCs[0].getOpInfo() ? "w/o" : "w")
+ << " error code";
+ break;
+ }
+ outs() << "\n";
+}
+
+static void printAllUnwindCodes(ArrayRef<UnwindCode> UCs) {
+ for (const UnwindCode *I = UCs.begin(), *E = UCs.end(); I < E; ) {
+ unsigned UsedSlots = getNumUsedSlots(*I);
+ if (UsedSlots > UCs.size()) {
+ outs() << "Unwind data corrupted: Encountered unwind op "
+ << getUnwindCodeTypeName((*I).getUnwindOp())
+ << " which requires " << UsedSlots
+ << " slots, but only " << UCs.size()
+ << " remaining in buffer";
+ return ;
+ }
+ printUnwindCode(makeArrayRef(I, E));
+ I += UsedSlots;
+ }
+}
+
+// Given a symbol sym this functions returns the address and section of it.
+static std::error_code
+resolveSectionAndAddress(const COFFObjectFile *Obj, const SymbolRef &Sym,
+ const coff_section *&ResolvedSection,
+ uint64_t &ResolvedAddr) {
+ ErrorOr<uint64_t> ResolvedAddrOrErr = Sym.getAddress();
+ if (std::error_code EC = ResolvedAddrOrErr.getError())
+ return EC;
+ ResolvedAddr = *ResolvedAddrOrErr;
+ ErrorOr<section_iterator> Iter = Sym.getSection();
+ if (std::error_code EC = Iter.getError())
+ return EC;
+ ResolvedSection = Obj->getCOFFSection(**Iter);
+ return std::error_code();
+}
+
+// Given a vector of relocations for a section and an offset into this section
+// the function returns the symbol used for the relocation at the offset.
+static std::error_code resolveSymbol(const std::vector<RelocationRef> &Rels,
+ uint64_t Offset, SymbolRef &Sym) {
+ for (std::vector<RelocationRef>::const_iterator I = Rels.begin(),
+ E = Rels.end();
+ I != E; ++I) {
+ uint64_t Ofs = I->getOffset();
+ if (Ofs == Offset) {
+ Sym = *I->getSymbol();
+ return std::error_code();
+ }
+ }
+ return object_error::parse_failed;
+}
+
+// Given a vector of relocations for a section and an offset into this section
+// the function resolves the symbol used for the relocation at the offset and
+// returns the section content and the address inside the content pointed to
+// by the symbol.
+static std::error_code
+getSectionContents(const COFFObjectFile *Obj,
+ const std::vector<RelocationRef> &Rels, uint64_t Offset,
+ ArrayRef<uint8_t> &Contents, uint64_t &Addr) {
+ SymbolRef Sym;
+ if (std::error_code EC = resolveSymbol(Rels, Offset, Sym))
+ return EC;
+ const coff_section *Section;
+ if (std::error_code EC = resolveSectionAndAddress(Obj, Sym, Section, Addr))
+ return EC;
+ if (std::error_code EC = Obj->getSectionContents(Section, Contents))
+ return EC;
+ return std::error_code();
+}
+
+// Given a vector of relocations for a section and an offset into this section
+// the function returns the name of the symbol used for the relocation at the
+// offset.
+static std::error_code resolveSymbolName(const std::vector<RelocationRef> &Rels,
+ uint64_t Offset, StringRef &Name) {
+ SymbolRef Sym;
+ if (std::error_code EC = resolveSymbol(Rels, Offset, Sym))
+ return EC;
+ ErrorOr<StringRef> NameOrErr = Sym.getName();
+ if (std::error_code EC = NameOrErr.getError())
+ return EC;
+ Name = *NameOrErr;
+ return std::error_code();
+}
+
+static void printCOFFSymbolAddress(llvm::raw_ostream &Out,
+ const std::vector<RelocationRef> &Rels,
+ uint64_t Offset, uint32_t Disp) {
+ StringRef Sym;
+ if (!resolveSymbolName(Rels, Offset, Sym)) {
+ Out << Sym;
+ if (Disp > 0)
+ Out << format(" + 0x%04x", Disp);
+ } else {
+ Out << format("0x%04x", Disp);
+ }
+}
+
+static void
+printSEHTable(const COFFObjectFile *Obj, uint32_t TableVA, int Count) {
+ if (Count == 0)
+ return;
+
+ const pe32_header *PE32Header;
+ error(Obj->getPE32Header(PE32Header));
+ uint32_t ImageBase = PE32Header->ImageBase;
+ uintptr_t IntPtr = 0;
+ error(Obj->getVaPtr(TableVA, IntPtr));
+ const support::ulittle32_t *P = (const support::ulittle32_t *)IntPtr;
+ outs() << "SEH Table:";
+ for (int I = 0; I < Count; ++I)
+ outs() << format(" 0x%x", P[I] + ImageBase);
+ outs() << "\n\n";
+}
+
+static void printLoadConfiguration(const COFFObjectFile *Obj) {
+ // Skip if it's not executable.
+ const pe32_header *PE32Header;
+ error(Obj->getPE32Header(PE32Header));
+ if (!PE32Header)
+ return;
+
+ // Currently only x86 is supported
+ if (Obj->getMachine() != COFF::IMAGE_FILE_MACHINE_I386)
+ return;
+
+ const data_directory *DataDir;
+ error(Obj->getDataDirectory(COFF::LOAD_CONFIG_TABLE, DataDir));
+ uintptr_t IntPtr = 0;
+ if (DataDir->RelativeVirtualAddress == 0)
+ return;
+ error(Obj->getRvaPtr(DataDir->RelativeVirtualAddress, IntPtr));
+
+ auto *LoadConf = reinterpret_cast<const coff_load_configuration32 *>(IntPtr);
+ outs() << "Load configuration:"
+ << "\n Timestamp: " << LoadConf->TimeDateStamp
+ << "\n Major Version: " << LoadConf->MajorVersion
+ << "\n Minor Version: " << LoadConf->MinorVersion
+ << "\n GlobalFlags Clear: " << LoadConf->GlobalFlagsClear
+ << "\n GlobalFlags Set: " << LoadConf->GlobalFlagsSet
+ << "\n Critical Section Default Timeout: " << LoadConf->CriticalSectionDefaultTimeout
+ << "\n Decommit Free Block Threshold: " << LoadConf->DeCommitFreeBlockThreshold
+ << "\n Decommit Total Free Threshold: " << LoadConf->DeCommitTotalFreeThreshold
+ << "\n Lock Prefix Table: " << LoadConf->LockPrefixTable
+ << "\n Maximum Allocation Size: " << LoadConf->MaximumAllocationSize
+ << "\n Virtual Memory Threshold: " << LoadConf->VirtualMemoryThreshold
+ << "\n Process Affinity Mask: " << LoadConf->ProcessAffinityMask
+ << "\n Process Heap Flags: " << LoadConf->ProcessHeapFlags
+ << "\n CSD Version: " << LoadConf->CSDVersion
+ << "\n Security Cookie: " << LoadConf->SecurityCookie
+ << "\n SEH Table: " << LoadConf->SEHandlerTable
+ << "\n SEH Count: " << LoadConf->SEHandlerCount
+ << "\n\n";
+ printSEHTable(Obj, LoadConf->SEHandlerTable, LoadConf->SEHandlerCount);
+ outs() << "\n";
+}
+
+// Prints import tables. The import table is a table containing the list of
+// DLL name and symbol names which will be linked by the loader.
+static void printImportTables(const COFFObjectFile *Obj) {
+ import_directory_iterator I = Obj->import_directory_begin();
+ import_directory_iterator E = Obj->import_directory_end();
+ if (I == E)
+ return;
+ outs() << "The Import Tables:\n";
+ for (; I != E; I = ++I) {
+ const import_directory_table_entry *Dir;
+ StringRef Name;
+ if (I->getImportTableEntry(Dir)) return;
+ if (I->getName(Name)) return;
+
+ outs() << format(" lookup %08x time %08x fwd %08x name %08x addr %08x\n\n",
+ static_cast<uint32_t>(Dir->ImportLookupTableRVA),
+ static_cast<uint32_t>(Dir->TimeDateStamp),
+ static_cast<uint32_t>(Dir->ForwarderChain),
+ static_cast<uint32_t>(Dir->NameRVA),
+ static_cast<uint32_t>(Dir->ImportAddressTableRVA));
+ outs() << " DLL Name: " << Name << "\n";
+ outs() << " Hint/Ord Name\n";
+ const import_lookup_table_entry32 *entry;
+ if (I->getImportLookupEntry(entry))
+ return;
+ for (; entry->Data; ++entry) {
+ if (entry->isOrdinal()) {
+ outs() << format(" % 6d\n", entry->getOrdinal());
+ continue;
+ }
+ uint16_t Hint;
+ StringRef Name;
+ if (Obj->getHintName(entry->getHintNameRVA(), Hint, Name))
+ return;
+ outs() << format(" % 6d ", Hint) << Name << "\n";
+ }
+ outs() << "\n";
+ }
+}
+
+// Prints export tables. The export table is a table containing the list of
+// exported symbol from the DLL.
+static void printExportTable(const COFFObjectFile *Obj) {
+ outs() << "Export Table:\n";
+ export_directory_iterator I = Obj->export_directory_begin();
+ export_directory_iterator E = Obj->export_directory_end();
+ if (I == E)
+ return;
+ StringRef DllName;
+ uint32_t OrdinalBase;
+ if (I->getDllName(DllName))
+ return;
+ if (I->getOrdinalBase(OrdinalBase))
+ return;
+ outs() << " DLL name: " << DllName << "\n";
+ outs() << " Ordinal base: " << OrdinalBase << "\n";
+ outs() << " Ordinal RVA Name\n";
+ for (; I != E; I = ++I) {
+ uint32_t Ordinal;
+ if (I->getOrdinal(Ordinal))
+ return;
+ uint32_t RVA;
+ if (I->getExportRVA(RVA))
+ return;
+ outs() << format(" % 4d %# 8x", Ordinal, RVA);
+
+ StringRef Name;
+ if (I->getSymbolName(Name))
+ continue;
+ if (!Name.empty())
+ outs() << " " << Name;
+ outs() << "\n";
+ }
+}
+
+// Given the COFF object file, this function returns the relocations for .pdata
+// and the pointer to "runtime function" structs.
+static bool getPDataSection(const COFFObjectFile *Obj,
+ std::vector<RelocationRef> &Rels,
+ const RuntimeFunction *&RFStart, int &NumRFs) {
+ for (const SectionRef &Section : Obj->sections()) {
+ StringRef Name;
+ error(Section.getName(Name));
+ if (Name != ".pdata")
+ continue;
+
+ const coff_section *Pdata = Obj->getCOFFSection(Section);
+ for (const RelocationRef &Reloc : Section.relocations())
+ Rels.push_back(Reloc);
+
+ // Sort relocations by address.
+ std::sort(Rels.begin(), Rels.end(), RelocAddressLess);
+
+ ArrayRef<uint8_t> Contents;
+ error(Obj->getSectionContents(Pdata, Contents));
+ if (Contents.empty())
+ continue;
+
+ RFStart = reinterpret_cast<const RuntimeFunction *>(Contents.data());
+ NumRFs = Contents.size() / sizeof(RuntimeFunction);
+ return true;
+ }
+ return false;
+}
+
+static void printWin64EHUnwindInfo(const Win64EH::UnwindInfo *UI) {
+ // The casts to int are required in order to output the value as number.
+ // Without the casts the value would be interpreted as char data (which
+ // results in garbage output).
+ outs() << " Version: " << static_cast<int>(UI->getVersion()) << "\n";
+ outs() << " Flags: " << static_cast<int>(UI->getFlags());
+ if (UI->getFlags()) {
+ if (UI->getFlags() & UNW_ExceptionHandler)
+ outs() << " UNW_ExceptionHandler";
+ if (UI->getFlags() & UNW_TerminateHandler)
+ outs() << " UNW_TerminateHandler";
+ if (UI->getFlags() & UNW_ChainInfo)
+ outs() << " UNW_ChainInfo";
+ }
+ outs() << "\n";
+ outs() << " Size of prolog: " << static_cast<int>(UI->PrologSize) << "\n";
+ outs() << " Number of Codes: " << static_cast<int>(UI->NumCodes) << "\n";
+ // Maybe this should move to output of UOP_SetFPReg?
+ if (UI->getFrameRegister()) {
+ outs() << " Frame register: "
+ << getUnwindRegisterName(UI->getFrameRegister()) << "\n";
+ outs() << " Frame offset: " << 16 * UI->getFrameOffset() << "\n";
+ } else {
+ outs() << " No frame pointer used\n";
+ }
+ if (UI->getFlags() & (UNW_ExceptionHandler | UNW_TerminateHandler)) {
+ // FIXME: Output exception handler data
+ } else if (UI->getFlags() & UNW_ChainInfo) {
+ // FIXME: Output chained unwind info
+ }
+
+ if (UI->NumCodes)
+ outs() << " Unwind Codes:\n";
+
+ printAllUnwindCodes(makeArrayRef(&UI->UnwindCodes[0], UI->NumCodes));
+
+ outs() << "\n";
+ outs().flush();
+}
+
+/// Prints out the given RuntimeFunction struct for x64, assuming that Obj is
+/// pointing to an executable file.
+static void printRuntimeFunction(const COFFObjectFile *Obj,
+ const RuntimeFunction &RF) {
+ if (!RF.StartAddress)
+ return;
+ outs() << "Function Table:\n"
+ << format(" Start Address: 0x%04x\n",
+ static_cast<uint32_t>(RF.StartAddress))
+ << format(" End Address: 0x%04x\n",
+ static_cast<uint32_t>(RF.EndAddress))
+ << format(" Unwind Info Address: 0x%04x\n",
+ static_cast<uint32_t>(RF.UnwindInfoOffset));
+ uintptr_t addr;
+ if (Obj->getRvaPtr(RF.UnwindInfoOffset, addr))
+ return;
+ printWin64EHUnwindInfo(reinterpret_cast<const Win64EH::UnwindInfo *>(addr));
+}
+
+/// Prints out the given RuntimeFunction struct for x64, assuming that Obj is
+/// pointing to an object file. Unlike executable, fields in RuntimeFunction
+/// struct are filled with zeros, but instead there are relocations pointing to
+/// them so that the linker will fill targets' RVAs to the fields at link
+/// time. This function interprets the relocations to find the data to be used
+/// in the resulting executable.
+static void printRuntimeFunctionRels(const COFFObjectFile *Obj,
+ const RuntimeFunction &RF,
+ uint64_t SectionOffset,
+ const std::vector<RelocationRef> &Rels) {
+ outs() << "Function Table:\n";
+ outs() << " Start Address: ";
+ printCOFFSymbolAddress(outs(), Rels,
+ SectionOffset +
+ /*offsetof(RuntimeFunction, StartAddress)*/ 0,
+ RF.StartAddress);
+ outs() << "\n";
+
+ outs() << " End Address: ";
+ printCOFFSymbolAddress(outs(), Rels,
+ SectionOffset +
+ /*offsetof(RuntimeFunction, EndAddress)*/ 4,
+ RF.EndAddress);
+ outs() << "\n";
+
+ outs() << " Unwind Info Address: ";
+ printCOFFSymbolAddress(outs(), Rels,
+ SectionOffset +
+ /*offsetof(RuntimeFunction, UnwindInfoOffset)*/ 8,
+ RF.UnwindInfoOffset);
+ outs() << "\n";
+
+ ArrayRef<uint8_t> XContents;
+ uint64_t UnwindInfoOffset = 0;
+ error(getSectionContents(
+ Obj, Rels, SectionOffset +
+ /*offsetof(RuntimeFunction, UnwindInfoOffset)*/ 8,
+ XContents, UnwindInfoOffset));
+ if (XContents.empty())
+ return;
+
+ UnwindInfoOffset += RF.UnwindInfoOffset;
+ if (UnwindInfoOffset > XContents.size())
+ return;
+
+ auto *UI = reinterpret_cast<const Win64EH::UnwindInfo *>(XContents.data() +
+ UnwindInfoOffset);
+ printWin64EHUnwindInfo(UI);
+}
+
+void llvm::printCOFFUnwindInfo(const COFFObjectFile *Obj) {
+ if (Obj->getMachine() != COFF::IMAGE_FILE_MACHINE_AMD64) {
+ errs() << "Unsupported image machine type "
+ "(currently only AMD64 is supported).\n";
+ return;
+ }
+
+ std::vector<RelocationRef> Rels;
+ const RuntimeFunction *RFStart;
+ int NumRFs;
+ if (!getPDataSection(Obj, Rels, RFStart, NumRFs))
+ return;
+ ArrayRef<RuntimeFunction> RFs(RFStart, NumRFs);
+
+ bool IsExecutable = Rels.empty();
+ if (IsExecutable) {
+ for (const RuntimeFunction &RF : RFs)
+ printRuntimeFunction(Obj, RF);
+ return;
+ }
+
+ for (const RuntimeFunction &RF : RFs) {
+ uint64_t SectionOffset =
+ std::distance(RFs.begin(), &RF) * sizeof(RuntimeFunction);
+ printRuntimeFunctionRels(Obj, RF, SectionOffset, Rels);
+ }
+}
+
+void llvm::printCOFFFileHeader(const object::ObjectFile *Obj) {
+ const COFFObjectFile *file = dyn_cast<const COFFObjectFile>(Obj);
+ printLoadConfiguration(file);
+ printImportTables(file);
+ printExportTable(file);
+}
+
+void llvm::printCOFFSymbolTable(const COFFObjectFile *coff) {
+ for (unsigned SI = 0, SE = coff->getNumberOfSymbols(); SI != SE; ++SI) {
+ ErrorOr<COFFSymbolRef> Symbol = coff->getSymbol(SI);
+ StringRef Name;
+ error(Symbol.getError());
+ error(coff->getSymbolName(*Symbol, Name));
+
+ outs() << "[" << format("%2d", SI) << "]"
+ << "(sec " << format("%2d", int(Symbol->getSectionNumber())) << ")"
+ << "(fl 0x00)" // Flag bits, which COFF doesn't have.
+ << "(ty " << format("%3x", unsigned(Symbol->getType())) << ")"
+ << "(scl " << format("%3x", unsigned(Symbol->getStorageClass())) << ") "
+ << "(nx " << unsigned(Symbol->getNumberOfAuxSymbols()) << ") "
+ << "0x" << format("%08x", unsigned(Symbol->getValue())) << " "
+ << Name << "\n";
+
+ for (unsigned AI = 0, AE = Symbol->getNumberOfAuxSymbols(); AI < AE; ++AI, ++SI) {
+ if (Symbol->isSectionDefinition()) {
+ const coff_aux_section_definition *asd;
+ error(coff->getAuxSymbol<coff_aux_section_definition>(SI + 1, asd));
+
+ int32_t AuxNumber = asd->getNumber(Symbol->isBigObj());
+
+ outs() << "AUX "
+ << format("scnlen 0x%x nreloc %d nlnno %d checksum 0x%x "
+ , unsigned(asd->Length)
+ , unsigned(asd->NumberOfRelocations)
+ , unsigned(asd->NumberOfLinenumbers)
+ , unsigned(asd->CheckSum))
+ << format("assoc %d comdat %d\n"
+ , unsigned(AuxNumber)
+ , unsigned(asd->Selection));
+ } else if (Symbol->isFileRecord()) {
+ const char *FileName;
+ error(coff->getAuxSymbol<char>(SI + 1, FileName));
+
+ StringRef Name(FileName, Symbol->getNumberOfAuxSymbols() *
+ coff->getSymbolTableEntrySize());
+ outs() << "AUX " << Name.rtrim(StringRef("\0", 1)) << '\n';
+
+ SI = SI + Symbol->getNumberOfAuxSymbols();
+ break;
+ } else {
+ outs() << "AUX Unknown\n";
+ }
+ }
+ }
+}
diff --git a/contrib/llvm/tools/llvm-objdump/ELFDump.cpp b/contrib/llvm/tools/llvm-objdump/ELFDump.cpp
new file mode 100644
index 0000000..7b44e39
--- /dev/null
+++ b/contrib/llvm/tools/llvm-objdump/ELFDump.cpp
@@ -0,0 +1,86 @@
+//===-- ELFDump.cpp - ELF-specific dumper -----------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file implements the ELF-specific dumper for llvm-objdump.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm-objdump.h"
+#include "llvm/Object/ELFObjectFile.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+using namespace llvm::object;
+
+template <class ELFT> void printProgramHeaders(const ELFFile<ELFT> *o) {
+ typedef ELFFile<ELFT> ELFO;
+ outs() << "Program Header:\n";
+ for (const typename ELFO::Elf_Phdr &Phdr : o->program_headers()) {
+ switch (Phdr.p_type) {
+ case ELF::PT_LOAD:
+ outs() << " LOAD ";
+ break;
+ case ELF::PT_GNU_STACK:
+ outs() << " STACK ";
+ break;
+ case ELF::PT_GNU_EH_FRAME:
+ outs() << "EH_FRAME ";
+ break;
+ case ELF::PT_INTERP:
+ outs() << " INTERP ";
+ break;
+ case ELF::PT_DYNAMIC:
+ outs() << " DYNAMIC ";
+ break;
+ case ELF::PT_PHDR:
+ outs() << " PHDR ";
+ break;
+ case ELF::PT_TLS:
+ outs() << " TLS ";
+ break;
+ default:
+ outs() << " UNKNOWN ";
+ }
+
+ const char *Fmt = ELFT::Is64Bits ? "0x%016" PRIx64 " " : "0x%08" PRIx64 " ";
+
+ outs() << "off " << format(Fmt, (uint64_t)Phdr.p_offset) << "vaddr "
+ << format(Fmt, (uint64_t)Phdr.p_vaddr) << "paddr "
+ << format(Fmt, (uint64_t)Phdr.p_paddr)
+ << format("align 2**%u\n",
+ countTrailingZeros<uint64_t>(Phdr.p_align))
+ << " filesz " << format(Fmt, (uint64_t)Phdr.p_filesz)
+ << "memsz " << format(Fmt, (uint64_t)Phdr.p_memsz) << "flags "
+ << ((Phdr.p_flags & ELF::PF_R) ? "r" : "-")
+ << ((Phdr.p_flags & ELF::PF_W) ? "w" : "-")
+ << ((Phdr.p_flags & ELF::PF_X) ? "x" : "-") << "\n";
+ }
+ outs() << "\n";
+}
+
+void llvm::printELFFileHeader(const object::ObjectFile *Obj) {
+ // Little-endian 32-bit
+ if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
+ printProgramHeaders(ELFObj->getELFFile());
+
+ // Big-endian 32-bit
+ if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
+ printProgramHeaders(ELFObj->getELFFile());
+
+ // Little-endian 64-bit
+ if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
+ printProgramHeaders(ELFObj->getELFFile());
+
+ // Big-endian 64-bit
+ if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
+ printProgramHeaders(ELFObj->getELFFile());
+}
diff --git a/contrib/llvm/tools/llvm-objdump/MachODump.cpp b/contrib/llvm/tools/llvm-objdump/MachODump.cpp
new file mode 100644
index 0000000..a2f3bc8
--- /dev/null
+++ b/contrib/llvm/tools/llvm-objdump/MachODump.cpp
@@ -0,0 +1,9000 @@
+//===-- MachODump.cpp - Object file dumping utility for llvm --------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the MachO-specific dumper for llvm-objdump.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-objdump.h"
+#include "llvm-c/Disassembler.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Config/config.h"
+#include "llvm/DebugInfo/DIContext.h"
+#include "llvm/DebugInfo/DWARF/DWARFContext.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/MCInstrDesc.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Object/MachO.h"
+#include "llvm/Object/MachOUniversal.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/FormattedStream.h"
+#include "llvm/Support/GraphWriter.h"
+#include "llvm/Support/LEB128.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 <algorithm>
+#include <cstring>
+#include <system_error>
+
+#if HAVE_CXXABI_H
+#include <cxxabi.h>
+#endif
+
+using namespace llvm;
+using namespace object;
+
+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 cl::opt<bool> FullLeadingAddr("full-leading-addr",
+ cl::desc("Print full leading address"));
+
+static cl::opt<bool> NoLeadingAddr("no-leading-addr",
+ cl::desc("Print no leading address"));
+
+cl::opt<bool> llvm::UniversalHeaders("universal-headers",
+ cl::desc("Print Mach-O universal headers "
+ "(requires -macho)"));
+
+cl::opt<bool>
+ llvm::ArchiveHeaders("archive-headers",
+ cl::desc("Print archive headers for Mach-O archives "
+ "(requires -macho)"));
+
+cl::opt<bool>
+ ArchiveMemberOffsets("archive-member-offsets",
+ cl::desc("Print the offset to each archive member for "
+ "Mach-O archives (requires -macho and "
+ "-archive-headers)"));
+
+cl::opt<bool>
+ llvm::IndirectSymbols("indirect-symbols",
+ cl::desc("Print indirect symbol table for Mach-O "
+ "objects (requires -macho)"));
+
+cl::opt<bool>
+ llvm::DataInCode("data-in-code",
+ cl::desc("Print the data in code table for Mach-O objects "
+ "(requires -macho)"));
+
+cl::opt<bool>
+ llvm::LinkOptHints("link-opt-hints",
+ cl::desc("Print the linker optimization hints for "
+ "Mach-O objects (requires -macho)"));
+
+cl::opt<bool>
+ llvm::InfoPlist("info-plist",
+ cl::desc("Print the info plist section as strings for "
+ "Mach-O objects (requires -macho)"));
+
+cl::opt<bool>
+ llvm::DylibsUsed("dylibs-used",
+ cl::desc("Print the shared libraries used for linked "
+ "Mach-O files (requires -macho)"));
+
+cl::opt<bool>
+ llvm::DylibId("dylib-id",
+ cl::desc("Print the shared library's id for the dylib Mach-O "
+ "file (requires -macho)"));
+
+cl::opt<bool>
+ llvm::NonVerbose("non-verbose",
+ cl::desc("Print the info for Mach-O objects in "
+ "non-verbose or numeric form (requires -macho)"));
+
+cl::opt<bool>
+ llvm::ObjcMetaData("objc-meta-data",
+ cl::desc("Print the Objective-C runtime meta data for "
+ "Mach-O files (requires -macho)"));
+
+cl::opt<std::string> llvm::DisSymName(
+ "dis-symname",
+ cl::desc("disassemble just this symbol's instructions (requires -macho"));
+
+static cl::opt<bool> NoSymbolicOperands(
+ "no-symbolic-operands",
+ cl::desc("do not symbolic operands when disassembling (requires -macho)"));
+
+static cl::list<std::string>
+ ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
+ cl::ZeroOrMore);
+
+bool ArchAll = false;
+
+static std::string ThumbTripleName;
+
+static const Target *GetTarget(const MachOObjectFile *MachOObj,
+ const char **McpuDefault,
+ const Target **ThumbTarget) {
+ // Figure out the target triple.
+ if (TripleName.empty()) {
+ llvm::Triple TT("unknown-unknown-unknown");
+ llvm::Triple ThumbTriple = Triple();
+ TT = MachOObj->getArch(McpuDefault, &ThumbTriple);
+ TripleName = TT.str();
+ ThumbTripleName = ThumbTriple.str();
+ }
+
+ // Get the target specific parser.
+ std::string Error;
+ const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error);
+ if (TheTarget && ThumbTripleName.empty())
+ return TheTarget;
+
+ *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error);
+ if (*ThumbTarget)
+ return TheTarget;
+
+ 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 {
+ bool operator()(const SymbolRef &A, const SymbolRef &B) {
+ uint64_t AAddr = (A.getType() != SymbolRef::ST_Function) ? 0 : A.getValue();
+ uint64_t BAddr = (B.getType() != SymbolRef::ST_Function) ? 0 : B.getValue();
+ return AAddr < BAddr;
+ }
+};
+
+// 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;
+
+// This is used to search for a data in code table entry for the PC being
+// disassembled. The j parameter has the PC in j.first. A single data in code
+// table entry can cover many bytes for each of its Kind's. So if the offset,
+// aka the i.first value, of the data in code table entry plus its Length
+// covers the PC being searched for this will return true. If not it will
+// return false.
+static bool compareDiceTableEntries(const DiceTableEntry &i,
+ const DiceTableEntry &j) {
+ uint16_t Length;
+ i.second.getLength(Length);
+
+ return j.first >= i.first && j.first < i.first + Length;
+}
+
+static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length,
+ unsigned short Kind) {
+ uint32_t Value, Size = 1;
+
+ switch (Kind) {
+ default:
+ case MachO::DICE_KIND_DATA:
+ if (Length >= 4) {
+ if (!NoShowRawInsn)
+ dumpBytes(makeArrayRef(bytes, 4), outs());
+ Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
+ outs() << "\t.long " << Value;
+ Size = 4;
+ } else if (Length >= 2) {
+ if (!NoShowRawInsn)
+ dumpBytes(makeArrayRef(bytes, 2), outs());
+ Value = bytes[1] << 8 | bytes[0];
+ outs() << "\t.short " << Value;
+ Size = 2;
+ } else {
+ if (!NoShowRawInsn)
+ dumpBytes(makeArrayRef(bytes, 2), outs());
+ Value = bytes[0];
+ outs() << "\t.byte " << Value;
+ Size = 1;
+ }
+ if (Kind == MachO::DICE_KIND_DATA)
+ outs() << "\t@ KIND_DATA\n";
+ else
+ outs() << "\t@ data in code kind = " << Kind << "\n";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE8:
+ if (!NoShowRawInsn)
+ dumpBytes(makeArrayRef(bytes, 1), outs());
+ Value = bytes[0];
+ outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n";
+ Size = 1;
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE16:
+ if (!NoShowRawInsn)
+ dumpBytes(makeArrayRef(bytes, 2), outs());
+ Value = bytes[1] << 8 | bytes[0];
+ outs() << "\t.short " << format("%5u", Value & 0xffff)
+ << "\t@ KIND_JUMP_TABLE16\n";
+ Size = 2;
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE32:
+ case MachO::DICE_KIND_ABS_JUMP_TABLE32:
+ if (!NoShowRawInsn)
+ dumpBytes(makeArrayRef(bytes, 4), outs());
+ Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
+ outs() << "\t.long " << Value;
+ if (Kind == MachO::DICE_KIND_JUMP_TABLE32)
+ outs() << "\t@ KIND_JUMP_TABLE32\n";
+ else
+ outs() << "\t@ KIND_ABS_JUMP_TABLE32\n";
+ Size = 4;
+ break;
+ }
+ return Size;
+}
+
+static void getSectionsAndSymbols(MachOObjectFile *MachOObj,
+ std::vector<SectionRef> &Sections,
+ std::vector<SymbolRef> &Symbols,
+ SmallVectorImpl<uint64_t> &FoundFns,
+ uint64_t &BaseSegmentAddress) {
+ for (const SymbolRef &Symbol : MachOObj->symbols()) {
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ if (!SymName->startswith("ltmp"))
+ Symbols.push_back(Symbol);
+ }
+
+ for (const SectionRef &Section : MachOObj->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
+
+ bool BaseSegmentAddressSet = false;
+ for (const auto &Command : MachOObj->load_commands()) {
+ if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) {
+ // We found a function starts segment, parse the addresses for later
+ // consumption.
+ MachO::linkedit_data_command LLC =
+ MachOObj->getLinkeditDataLoadCommand(Command);
+
+ 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;
+ }
+ }
+ }
+}
+
+static void PrintIndirectSymbolTable(MachOObjectFile *O, bool verbose,
+ uint32_t n, uint32_t count,
+ uint32_t stride, uint64_t addr) {
+ MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand();
+ uint32_t nindirectsyms = Dysymtab.nindirectsyms;
+ if (n > nindirectsyms)
+ outs() << " (entries start past the end of the indirect symbol "
+ "table) (reserved1 field greater than the table size)";
+ else if (n + count > nindirectsyms)
+ outs() << " (entries extends past the end of the indirect symbol "
+ "table)";
+ outs() << "\n";
+ uint32_t cputype = O->getHeader().cputype;
+ if (cputype & MachO::CPU_ARCH_ABI64)
+ outs() << "address index";
+ else
+ outs() << "address index";
+ if (verbose)
+ outs() << " name\n";
+ else
+ outs() << "\n";
+ for (uint32_t j = 0; j < count && n + j < nindirectsyms; j++) {
+ if (cputype & MachO::CPU_ARCH_ABI64)
+ outs() << format("0x%016" PRIx64, addr + j * stride) << " ";
+ else
+ outs() << format("0x%08" PRIx32, addr + j * stride) << " ";
+ MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand();
+ uint32_t indirect_symbol = O->getIndirectSymbolTableEntry(Dysymtab, n + j);
+ if (indirect_symbol == MachO::INDIRECT_SYMBOL_LOCAL) {
+ outs() << "LOCAL\n";
+ continue;
+ }
+ if (indirect_symbol ==
+ (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) {
+ outs() << "LOCAL ABSOLUTE\n";
+ continue;
+ }
+ if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) {
+ outs() << "ABSOLUTE\n";
+ continue;
+ }
+ outs() << format("%5u ", indirect_symbol);
+ if (verbose) {
+ MachO::symtab_command Symtab = O->getSymtabLoadCommand();
+ if (indirect_symbol < Symtab.nsyms) {
+ symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol);
+ SymbolRef Symbol = *Sym;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ outs() << *SymName;
+ } else {
+ outs() << "?";
+ }
+ }
+ outs() << "\n";
+ }
+}
+
+static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) {
+ for (const auto &Load : O->load_commands()) {
+ if (Load.C.cmd == MachO::LC_SEGMENT_64) {
+ MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section_64 Sec = O->getSection64(Load, J);
+ uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
+ if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
+ section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
+ section_type == MachO::S_SYMBOL_STUBS) {
+ uint32_t stride;
+ if (section_type == MachO::S_SYMBOL_STUBS)
+ stride = Sec.reserved2;
+ else
+ stride = 8;
+ if (stride == 0) {
+ outs() << "Can't print indirect symbols for (" << Sec.segname << ","
+ << Sec.sectname << ") "
+ << "(size of stubs in reserved2 field is zero)\n";
+ continue;
+ }
+ uint32_t count = Sec.size / stride;
+ outs() << "Indirect symbols for (" << Sec.segname << ","
+ << Sec.sectname << ") " << count << " entries";
+ uint32_t n = Sec.reserved1;
+ PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr);
+ }
+ }
+ } else if (Load.C.cmd == MachO::LC_SEGMENT) {
+ MachO::segment_command Seg = O->getSegmentLoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section Sec = O->getSection(Load, J);
+ uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
+ if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
+ section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
+ section_type == MachO::S_SYMBOL_STUBS) {
+ uint32_t stride;
+ if (section_type == MachO::S_SYMBOL_STUBS)
+ stride = Sec.reserved2;
+ else
+ stride = 4;
+ if (stride == 0) {
+ outs() << "Can't print indirect symbols for (" << Sec.segname << ","
+ << Sec.sectname << ") "
+ << "(size of stubs in reserved2 field is zero)\n";
+ continue;
+ }
+ uint32_t count = Sec.size / stride;
+ outs() << "Indirect symbols for (" << Sec.segname << ","
+ << Sec.sectname << ") " << count << " entries";
+ uint32_t n = Sec.reserved1;
+ PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr);
+ }
+ }
+ }
+ }
+}
+
+static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) {
+ MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand();
+ uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry);
+ outs() << "Data in code table (" << nentries << " entries)\n";
+ outs() << "offset length kind\n";
+ for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE;
+ ++DI) {
+ uint32_t Offset;
+ DI->getOffset(Offset);
+ outs() << format("0x%08" PRIx32, Offset) << " ";
+ uint16_t Length;
+ DI->getLength(Length);
+ outs() << format("%6u", Length) << " ";
+ uint16_t Kind;
+ DI->getKind(Kind);
+ if (verbose) {
+ switch (Kind) {
+ case MachO::DICE_KIND_DATA:
+ outs() << "DATA";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE8:
+ outs() << "JUMP_TABLE8";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE16:
+ outs() << "JUMP_TABLE16";
+ break;
+ case MachO::DICE_KIND_JUMP_TABLE32:
+ outs() << "JUMP_TABLE32";
+ break;
+ case MachO::DICE_KIND_ABS_JUMP_TABLE32:
+ outs() << "ABS_JUMP_TABLE32";
+ break;
+ default:
+ outs() << format("0x%04" PRIx32, Kind);
+ break;
+ }
+ } else
+ outs() << format("0x%04" PRIx32, Kind);
+ outs() << "\n";
+ }
+}
+
+static void PrintLinkOptHints(MachOObjectFile *O) {
+ MachO::linkedit_data_command LohLC = O->getLinkOptHintsLoadCommand();
+ const char *loh = O->getData().substr(LohLC.dataoff, 1).data();
+ uint32_t nloh = LohLC.datasize;
+ outs() << "Linker optimiztion hints (" << nloh << " total bytes)\n";
+ for (uint32_t i = 0; i < nloh;) {
+ unsigned n;
+ uint64_t identifier = decodeULEB128((const uint8_t *)(loh + i), &n);
+ i += n;
+ outs() << " identifier " << identifier << " ";
+ if (i >= nloh)
+ return;
+ switch (identifier) {
+ case 1:
+ outs() << "AdrpAdrp\n";
+ break;
+ case 2:
+ outs() << "AdrpLdr\n";
+ break;
+ case 3:
+ outs() << "AdrpAddLdr\n";
+ break;
+ case 4:
+ outs() << "AdrpLdrGotLdr\n";
+ break;
+ case 5:
+ outs() << "AdrpAddStr\n";
+ break;
+ case 6:
+ outs() << "AdrpLdrGotStr\n";
+ break;
+ case 7:
+ outs() << "AdrpAdd\n";
+ break;
+ case 8:
+ outs() << "AdrpLdrGot\n";
+ break;
+ default:
+ outs() << "Unknown identifier value\n";
+ break;
+ }
+ uint64_t narguments = decodeULEB128((const uint8_t *)(loh + i), &n);
+ i += n;
+ outs() << " narguments " << narguments << "\n";
+ if (i >= nloh)
+ return;
+
+ for (uint32_t j = 0; j < narguments; j++) {
+ uint64_t value = decodeULEB128((const uint8_t *)(loh + i), &n);
+ i += n;
+ outs() << "\tvalue " << format("0x%" PRIx64, value) << "\n";
+ if (i >= nloh)
+ return;
+ }
+ }
+}
+
+static void PrintDylibs(MachOObjectFile *O, bool JustId) {
+ unsigned Index = 0;
+ for (const auto &Load : O->load_commands()) {
+ if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) ||
+ (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB ||
+ Load.C.cmd == MachO::LC_LOAD_DYLIB ||
+ Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
+ Load.C.cmd == MachO::LC_REEXPORT_DYLIB ||
+ Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
+ Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) {
+ MachO::dylib_command dl = O->getDylibIDLoadCommand(Load);
+ if (dl.dylib.name < dl.cmdsize) {
+ const char *p = (const char *)(Load.Ptr) + dl.dylib.name;
+ if (JustId)
+ outs() << p << "\n";
+ else {
+ outs() << "\t" << p;
+ outs() << " (compatibility version "
+ << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
+ << (dl.dylib.compatibility_version & 0xff) << ",";
+ outs() << " current version "
+ << ((dl.dylib.current_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.current_version >> 8) & 0xff) << "."
+ << (dl.dylib.current_version & 0xff) << ")\n";
+ }
+ } else {
+ outs() << "\tBad offset (" << dl.dylib.name << ") for name of ";
+ if (Load.C.cmd == MachO::LC_ID_DYLIB)
+ outs() << "LC_ID_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LOAD_DYLIB)
+ outs() << "LC_LOAD_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB)
+ outs() << "LC_LOAD_WEAK_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB)
+ outs() << "LC_LAZY_LOAD_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB)
+ outs() << "LC_REEXPORT_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
+ outs() << "LC_LOAD_UPWARD_DYLIB ";
+ else
+ outs() << "LC_??? ";
+ outs() << "command " << Index++ << "\n";
+ }
+ }
+ }
+}
+
+typedef DenseMap<uint64_t, StringRef> SymbolAddressMap;
+
+static void CreateSymbolAddressMap(MachOObjectFile *O,
+ SymbolAddressMap *AddrMap) {
+ // Create a map of symbol addresses to symbol names.
+ for (const SymbolRef &Symbol : O->symbols()) {
+ SymbolRef::Type ST = Symbol.getType();
+ if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
+ ST == SymbolRef::ST_Other) {
+ uint64_t Address = Symbol.getValue();
+ ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ report_fatal_error(EC.message());
+ StringRef SymName = *SymNameOrErr;
+ if (!SymName.startswith(".objc"))
+ (*AddrMap)[Address] = SymName;
+ }
+ }
+}
+
+// GuessSymbolName is passed the address of what might be a symbol and a
+// pointer to the SymbolAddressMap. It returns the name of a symbol
+// with that address or nullptr if no symbol is found with that address.
+static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) {
+ const char *SymbolName = nullptr;
+ // A DenseMap can't lookup up some values.
+ if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) {
+ StringRef name = AddrMap->lookup(value);
+ if (!name.empty())
+ SymbolName = name.data();
+ }
+ return SymbolName;
+}
+
+static void DumpCstringChar(const char c) {
+ char p[2];
+ p[0] = c;
+ p[1] = '\0';
+ outs().write_escaped(p);
+}
+
+static void DumpCstringSection(MachOObjectFile *O, const char *sect,
+ uint32_t sect_size, uint64_t sect_addr,
+ bool print_addresses) {
+ for (uint32_t i = 0; i < sect_size; i++) {
+ if (print_addresses) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, sect_addr + i) << " ";
+ else
+ outs() << format("%08" PRIx64, sect_addr + i) << " ";
+ }
+ for (; i < sect_size && sect[i] != '\0'; i++)
+ DumpCstringChar(sect[i]);
+ if (i < sect_size && sect[i] == '\0')
+ outs() << "\n";
+ }
+}
+
+static void DumpLiteral4(uint32_t l, float f) {
+ outs() << format("0x%08" PRIx32, l);
+ if ((l & 0x7f800000) != 0x7f800000)
+ outs() << format(" (%.16e)\n", f);
+ else {
+ if (l == 0x7f800000)
+ outs() << " (+Infinity)\n";
+ else if (l == 0xff800000)
+ outs() << " (-Infinity)\n";
+ else if ((l & 0x00400000) == 0x00400000)
+ outs() << " (non-signaling Not-a-Number)\n";
+ else
+ outs() << " (signaling Not-a-Number)\n";
+ }
+}
+
+static void DumpLiteral4Section(MachOObjectFile *O, const char *sect,
+ uint32_t sect_size, uint64_t sect_addr,
+ bool print_addresses) {
+ for (uint32_t i = 0; i < sect_size; i += sizeof(float)) {
+ if (print_addresses) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, sect_addr + i) << " ";
+ else
+ outs() << format("%08" PRIx64, sect_addr + i) << " ";
+ }
+ float f;
+ memcpy(&f, sect + i, sizeof(float));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(f);
+ uint32_t l;
+ memcpy(&l, sect + i, sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(l);
+ DumpLiteral4(l, f);
+ }
+}
+
+static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1,
+ double d) {
+ outs() << format("0x%08" PRIx32, l0) << " " << format("0x%08" PRIx32, l1);
+ uint32_t Hi, Lo;
+ Hi = (O->isLittleEndian()) ? l1 : l0;
+ Lo = (O->isLittleEndian()) ? l0 : l1;
+
+ // Hi is the high word, so this is equivalent to if(isfinite(d))
+ if ((Hi & 0x7ff00000) != 0x7ff00000)
+ outs() << format(" (%.16e)\n", d);
+ else {
+ if (Hi == 0x7ff00000 && Lo == 0)
+ outs() << " (+Infinity)\n";
+ else if (Hi == 0xfff00000 && Lo == 0)
+ outs() << " (-Infinity)\n";
+ else if ((Hi & 0x00080000) == 0x00080000)
+ outs() << " (non-signaling Not-a-Number)\n";
+ else
+ outs() << " (signaling Not-a-Number)\n";
+ }
+}
+
+static void DumpLiteral8Section(MachOObjectFile *O, const char *sect,
+ uint32_t sect_size, uint64_t sect_addr,
+ bool print_addresses) {
+ for (uint32_t i = 0; i < sect_size; i += sizeof(double)) {
+ if (print_addresses) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, sect_addr + i) << " ";
+ else
+ outs() << format("%08" PRIx64, sect_addr + i) << " ";
+ }
+ double d;
+ memcpy(&d, sect + i, sizeof(double));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(d);
+ uint32_t l0, l1;
+ memcpy(&l0, sect + i, sizeof(uint32_t));
+ memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost) {
+ sys::swapByteOrder(l0);
+ sys::swapByteOrder(l1);
+ }
+ DumpLiteral8(O, l0, l1, d);
+ }
+}
+
+static void DumpLiteral16(uint32_t l0, uint32_t l1, uint32_t l2, uint32_t l3) {
+ outs() << format("0x%08" PRIx32, l0) << " ";
+ outs() << format("0x%08" PRIx32, l1) << " ";
+ outs() << format("0x%08" PRIx32, l2) << " ";
+ outs() << format("0x%08" PRIx32, l3) << "\n";
+}
+
+static void DumpLiteral16Section(MachOObjectFile *O, const char *sect,
+ uint32_t sect_size, uint64_t sect_addr,
+ bool print_addresses) {
+ for (uint32_t i = 0; i < sect_size; i += 16) {
+ if (print_addresses) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, sect_addr + i) << " ";
+ else
+ outs() << format("%08" PRIx64, sect_addr + i) << " ";
+ }
+ uint32_t l0, l1, l2, l3;
+ memcpy(&l0, sect + i, sizeof(uint32_t));
+ memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t));
+ memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t));
+ memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost) {
+ sys::swapByteOrder(l0);
+ sys::swapByteOrder(l1);
+ sys::swapByteOrder(l2);
+ sys::swapByteOrder(l3);
+ }
+ DumpLiteral16(l0, l1, l2, l3);
+ }
+}
+
+static void DumpLiteralPointerSection(MachOObjectFile *O,
+ const SectionRef &Section,
+ const char *sect, uint32_t sect_size,
+ uint64_t sect_addr,
+ bool print_addresses) {
+ // Collect the literal sections in this Mach-O file.
+ std::vector<SectionRef> LiteralSections;
+ for (const SectionRef &Section : O->sections()) {
+ DataRefImpl Ref = Section.getRawDataRefImpl();
+ uint32_t section_type;
+ if (O->is64Bit()) {
+ const MachO::section_64 Sec = O->getSection64(Ref);
+ section_type = Sec.flags & MachO::SECTION_TYPE;
+ } else {
+ const MachO::section Sec = O->getSection(Ref);
+ section_type = Sec.flags & MachO::SECTION_TYPE;
+ }
+ if (section_type == MachO::S_CSTRING_LITERALS ||
+ section_type == MachO::S_4BYTE_LITERALS ||
+ section_type == MachO::S_8BYTE_LITERALS ||
+ section_type == MachO::S_16BYTE_LITERALS)
+ LiteralSections.push_back(Section);
+ }
+
+ // Set the size of the literal pointer.
+ uint32_t lp_size = O->is64Bit() ? 8 : 4;
+
+ // Collect the external relocation symbols for the literal pointers.
+ std::vector<std::pair<uint64_t, SymbolRef>> Relocs;
+ for (const RelocationRef &Reloc : Section.relocations()) {
+ DataRefImpl Rel;
+ MachO::any_relocation_info RE;
+ bool isExtern = false;
+ Rel = Reloc.getRawDataRefImpl();
+ RE = O->getRelocation(Rel);
+ isExtern = O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ symbol_iterator RelocSym = Reloc.getSymbol();
+ Relocs.push_back(std::make_pair(RelocOffset, *RelocSym));
+ }
+ }
+ array_pod_sort(Relocs.begin(), Relocs.end());
+
+ // Dump each literal pointer.
+ for (uint32_t i = 0; i < sect_size; i += lp_size) {
+ if (print_addresses) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, sect_addr + i) << " ";
+ else
+ outs() << format("%08" PRIx64, sect_addr + i) << " ";
+ }
+ uint64_t lp;
+ if (O->is64Bit()) {
+ memcpy(&lp, sect + i, sizeof(uint64_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(lp);
+ } else {
+ uint32_t li;
+ memcpy(&li, sect + i, sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(li);
+ lp = li;
+ }
+
+ // First look for an external relocation entry for this literal pointer.
+ auto Reloc = std::find_if(
+ Relocs.begin(), Relocs.end(),
+ [&](const std::pair<uint64_t, SymbolRef> &P) { return P.first == i; });
+ if (Reloc != Relocs.end()) {
+ symbol_iterator RelocSym = Reloc->second;
+ ErrorOr<StringRef> SymName = RelocSym->getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ outs() << "external relocation entry for symbol:" << *SymName << "\n";
+ continue;
+ }
+
+ // For local references see what the section the literal pointer points to.
+ auto Sect = std::find_if(LiteralSections.begin(), LiteralSections.end(),
+ [&](const SectionRef &R) {
+ return lp >= R.getAddress() &&
+ lp < R.getAddress() + R.getSize();
+ });
+ if (Sect == LiteralSections.end()) {
+ outs() << format("0x%" PRIx64, lp) << " (not in a literal section)\n";
+ continue;
+ }
+
+ uint64_t SectAddress = Sect->getAddress();
+ uint64_t SectSize = Sect->getSize();
+
+ StringRef SectName;
+ Sect->getName(SectName);
+ DataRefImpl Ref = Sect->getRawDataRefImpl();
+ StringRef SegmentName = O->getSectionFinalSegmentName(Ref);
+ outs() << SegmentName << ":" << SectName << ":";
+
+ uint32_t section_type;
+ if (O->is64Bit()) {
+ const MachO::section_64 Sec = O->getSection64(Ref);
+ section_type = Sec.flags & MachO::SECTION_TYPE;
+ } else {
+ const MachO::section Sec = O->getSection(Ref);
+ section_type = Sec.flags & MachO::SECTION_TYPE;
+ }
+
+ StringRef BytesStr;
+ Sect->getContents(BytesStr);
+ const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
+
+ switch (section_type) {
+ case MachO::S_CSTRING_LITERALS:
+ for (uint64_t i = lp - SectAddress; i < SectSize && Contents[i] != '\0';
+ i++) {
+ DumpCstringChar(Contents[i]);
+ }
+ outs() << "\n";
+ break;
+ case MachO::S_4BYTE_LITERALS:
+ float f;
+ memcpy(&f, Contents + (lp - SectAddress), sizeof(float));
+ uint32_t l;
+ memcpy(&l, Contents + (lp - SectAddress), sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost) {
+ sys::swapByteOrder(f);
+ sys::swapByteOrder(l);
+ }
+ DumpLiteral4(l, f);
+ break;
+ case MachO::S_8BYTE_LITERALS: {
+ double d;
+ memcpy(&d, Contents + (lp - SectAddress), sizeof(double));
+ uint32_t l0, l1;
+ memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t));
+ memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t),
+ sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost) {
+ sys::swapByteOrder(f);
+ sys::swapByteOrder(l0);
+ sys::swapByteOrder(l1);
+ }
+ DumpLiteral8(O, l0, l1, d);
+ break;
+ }
+ case MachO::S_16BYTE_LITERALS: {
+ uint32_t l0, l1, l2, l3;
+ memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t));
+ memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t),
+ sizeof(uint32_t));
+ memcpy(&l2, Contents + (lp - SectAddress) + 2 * sizeof(uint32_t),
+ sizeof(uint32_t));
+ memcpy(&l3, Contents + (lp - SectAddress) + 3 * sizeof(uint32_t),
+ sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost) {
+ sys::swapByteOrder(l0);
+ sys::swapByteOrder(l1);
+ sys::swapByteOrder(l2);
+ sys::swapByteOrder(l3);
+ }
+ DumpLiteral16(l0, l1, l2, l3);
+ break;
+ }
+ }
+ }
+}
+
+static void DumpInitTermPointerSection(MachOObjectFile *O, const char *sect,
+ uint32_t sect_size, uint64_t sect_addr,
+ SymbolAddressMap *AddrMap,
+ bool verbose) {
+ uint32_t stride;
+ stride = (O->is64Bit()) ? sizeof(uint64_t) : sizeof(uint32_t);
+ for (uint32_t i = 0; i < sect_size; i += stride) {
+ const char *SymbolName = nullptr;
+ if (O->is64Bit()) {
+ outs() << format("0x%016" PRIx64, sect_addr + i * stride) << " ";
+ uint64_t pointer_value;
+ memcpy(&pointer_value, sect + i, stride);
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(pointer_value);
+ outs() << format("0x%016" PRIx64, pointer_value);
+ if (verbose)
+ SymbolName = GuessSymbolName(pointer_value, AddrMap);
+ } else {
+ outs() << format("0x%08" PRIx64, sect_addr + i * stride) << " ";
+ uint32_t pointer_value;
+ memcpy(&pointer_value, sect + i, stride);
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(pointer_value);
+ outs() << format("0x%08" PRIx32, pointer_value);
+ if (verbose)
+ SymbolName = GuessSymbolName(pointer_value, AddrMap);
+ }
+ if (SymbolName)
+ outs() << " " << SymbolName;
+ outs() << "\n";
+ }
+}
+
+static void DumpRawSectionContents(MachOObjectFile *O, const char *sect,
+ uint32_t size, uint64_t addr) {
+ uint32_t cputype = O->getHeader().cputype;
+ if (cputype == MachO::CPU_TYPE_I386 || cputype == MachO::CPU_TYPE_X86_64) {
+ uint32_t j;
+ for (uint32_t i = 0; i < size; i += j, addr += j) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, addr) << "\t";
+ else
+ outs() << format("%08" PRIx64, addr) << "\t";
+ for (j = 0; j < 16 && i + j < size; j++) {
+ uint8_t byte_word = *(sect + i + j);
+ outs() << format("%02" PRIx32, (uint32_t)byte_word) << " ";
+ }
+ outs() << "\n";
+ }
+ } else {
+ uint32_t j;
+ for (uint32_t i = 0; i < size; i += j, addr += j) {
+ if (O->is64Bit())
+ outs() << format("%016" PRIx64, addr) << "\t";
+ else
+ outs() << format("%08" PRIx64, sect) << "\t";
+ for (j = 0; j < 4 * sizeof(int32_t) && i + j < size;
+ j += sizeof(int32_t)) {
+ if (i + j + sizeof(int32_t) < size) {
+ uint32_t long_word;
+ memcpy(&long_word, sect + i + j, sizeof(int32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(long_word);
+ outs() << format("%08" PRIx32, long_word) << " ";
+ } else {
+ for (uint32_t k = 0; i + j + k < size; k++) {
+ uint8_t byte_word = *(sect + i + j);
+ outs() << format("%02" PRIx32, (uint32_t)byte_word) << " ";
+ }
+ }
+ }
+ outs() << "\n";
+ }
+ }
+}
+
+static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF,
+ StringRef DisSegName, StringRef DisSectName);
+static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
+ uint32_t size, uint32_t addr);
+
+static void DumpSectionContents(StringRef Filename, MachOObjectFile *O,
+ bool verbose) {
+ SymbolAddressMap AddrMap;
+ if (verbose)
+ CreateSymbolAddressMap(O, &AddrMap);
+
+ for (unsigned i = 0; i < FilterSections.size(); ++i) {
+ StringRef DumpSection = FilterSections[i];
+ std::pair<StringRef, StringRef> DumpSegSectName;
+ DumpSegSectName = DumpSection.split(',');
+ StringRef DumpSegName, DumpSectName;
+ if (DumpSegSectName.second.size()) {
+ DumpSegName = DumpSegSectName.first;
+ DumpSectName = DumpSegSectName.second;
+ } else {
+ DumpSegName = "";
+ DumpSectName = DumpSegSectName.first;
+ }
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ DataRefImpl Ref = Section.getRawDataRefImpl();
+ StringRef SegName = O->getSectionFinalSegmentName(Ref);
+ if ((DumpSegName.empty() || SegName == DumpSegName) &&
+ (SectName == DumpSectName)) {
+
+ uint32_t section_flags;
+ if (O->is64Bit()) {
+ const MachO::section_64 Sec = O->getSection64(Ref);
+ section_flags = Sec.flags;
+
+ } else {
+ const MachO::section Sec = O->getSection(Ref);
+ section_flags = Sec.flags;
+ }
+ uint32_t section_type = section_flags & MachO::SECTION_TYPE;
+
+ StringRef BytesStr;
+ Section.getContents(BytesStr);
+ const char *sect = reinterpret_cast<const char *>(BytesStr.data());
+ uint32_t sect_size = BytesStr.size();
+ uint64_t sect_addr = Section.getAddress();
+
+ outs() << "Contents of (" << SegName << "," << SectName
+ << ") section\n";
+
+ if (verbose) {
+ if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) ||
+ (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) {
+ DisassembleMachO(Filename, O, SegName, SectName);
+ continue;
+ }
+ if (SegName == "__TEXT" && SectName == "__info_plist") {
+ outs() << sect;
+ continue;
+ }
+ if (SegName == "__OBJC" && SectName == "__protocol") {
+ DumpProtocolSection(O, sect, sect_size, sect_addr);
+ continue;
+ }
+ switch (section_type) {
+ case MachO::S_REGULAR:
+ DumpRawSectionContents(O, sect, sect_size, sect_addr);
+ break;
+ case MachO::S_ZEROFILL:
+ outs() << "zerofill section and has no contents in the file\n";
+ break;
+ case MachO::S_CSTRING_LITERALS:
+ DumpCstringSection(O, sect, sect_size, sect_addr, !NoLeadingAddr);
+ break;
+ case MachO::S_4BYTE_LITERALS:
+ DumpLiteral4Section(O, sect, sect_size, sect_addr, !NoLeadingAddr);
+ break;
+ case MachO::S_8BYTE_LITERALS:
+ DumpLiteral8Section(O, sect, sect_size, sect_addr, !NoLeadingAddr);
+ break;
+ case MachO::S_16BYTE_LITERALS:
+ DumpLiteral16Section(O, sect, sect_size, sect_addr, !NoLeadingAddr);
+ break;
+ case MachO::S_LITERAL_POINTERS:
+ DumpLiteralPointerSection(O, Section, sect, sect_size, sect_addr,
+ !NoLeadingAddr);
+ break;
+ case MachO::S_MOD_INIT_FUNC_POINTERS:
+ case MachO::S_MOD_TERM_FUNC_POINTERS:
+ DumpInitTermPointerSection(O, sect, sect_size, sect_addr, &AddrMap,
+ verbose);
+ break;
+ default:
+ outs() << "Unknown section type ("
+ << format("0x%08" PRIx32, section_type) << ")\n";
+ DumpRawSectionContents(O, sect, sect_size, sect_addr);
+ break;
+ }
+ } else {
+ if (section_type == MachO::S_ZEROFILL)
+ outs() << "zerofill section and has no contents in the file\n";
+ else
+ DumpRawSectionContents(O, sect, sect_size, sect_addr);
+ }
+ }
+ }
+ }
+}
+
+static void DumpInfoPlistSectionContents(StringRef Filename,
+ MachOObjectFile *O) {
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ DataRefImpl Ref = Section.getRawDataRefImpl();
+ StringRef SegName = O->getSectionFinalSegmentName(Ref);
+ if (SegName == "__TEXT" && SectName == "__info_plist") {
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ StringRef BytesStr;
+ Section.getContents(BytesStr);
+ const char *sect = reinterpret_cast<const char *>(BytesStr.data());
+ outs() << sect;
+ return;
+ }
+ }
+}
+
+// checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file
+// and if it is and there is a list of architecture flags is specified then
+// check to make sure this Mach-O file is one of those architectures or all
+// architectures were specified. If not then an error is generated and this
+// routine returns false. Else it returns true.
+static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) {
+ if (isa<MachOObjectFile>(O) && !ArchAll && ArchFlags.size() != 0) {
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
+ bool ArchFound = false;
+ MachO::mach_header H;
+ MachO::mach_header_64 H_64;
+ Triple T;
+ if (MachO->is64Bit()) {
+ H_64 = MachO->MachOObjectFile::getHeader64();
+ T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
+ } else {
+ H = MachO->MachOObjectFile::getHeader();
+ T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
+ }
+ unsigned i;
+ for (i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == T.getArchName())
+ ArchFound = true;
+ break;
+ }
+ if (!ArchFound) {
+ errs() << "llvm-objdump: file: " + Filename + " does not contain "
+ << "architecture: " + ArchFlags[i] + "\n";
+ return false;
+ }
+ }
+ return true;
+}
+
+static void printObjcMetaData(MachOObjectFile *O, bool verbose);
+
+// ProcessMachO() is passed a single opened Mach-O file, which may be an
+// archive member and or in a slice of a universal file. It prints the
+// the file name and header info and then processes it according to the
+// command line options.
+static void ProcessMachO(StringRef Filename, MachOObjectFile *MachOOF,
+ StringRef ArchiveMemberName = StringRef(),
+ StringRef ArchitectureName = StringRef()) {
+ // If we are doing some processing here on the Mach-O file print the header
+ // info. And don't print it otherwise like in the case of printing the
+ // UniversalHeaders or ArchiveHeaders.
+ if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind ||
+ LazyBind || WeakBind || IndirectSymbols || DataInCode || LinkOptHints ||
+ DylibsUsed || DylibId || ObjcMetaData || (FilterSections.size() != 0)) {
+ outs() << Filename;
+ if (!ArchiveMemberName.empty())
+ outs() << '(' << ArchiveMemberName << ')';
+ if (!ArchitectureName.empty())
+ outs() << " (architecture " << ArchitectureName << ")";
+ outs() << ":\n";
+ }
+
+ if (Disassemble)
+ DisassembleMachO(Filename, MachOOF, "__TEXT", "__text");
+ if (IndirectSymbols)
+ PrintIndirectSymbols(MachOOF, !NonVerbose);
+ if (DataInCode)
+ PrintDataInCodeTable(MachOOF, !NonVerbose);
+ if (LinkOptHints)
+ PrintLinkOptHints(MachOOF);
+ if (Relocations)
+ PrintRelocations(MachOOF);
+ if (SectionHeaders)
+ PrintSectionHeaders(MachOOF);
+ if (SectionContents)
+ PrintSectionContents(MachOOF);
+ if (FilterSections.size() != 0)
+ DumpSectionContents(Filename, MachOOF, !NonVerbose);
+ if (InfoPlist)
+ DumpInfoPlistSectionContents(Filename, MachOOF);
+ if (DylibsUsed)
+ PrintDylibs(MachOOF, false);
+ if (DylibId)
+ PrintDylibs(MachOOF, true);
+ if (SymbolTable)
+ PrintSymbolTable(MachOOF);
+ if (UnwindInfo)
+ printMachOUnwindInfo(MachOOF);
+ if (PrivateHeaders)
+ printMachOFileHeader(MachOOF);
+ if (ObjcMetaData)
+ printObjcMetaData(MachOOF, !NonVerbose);
+ if (ExportsTrie)
+ printExportsTrie(MachOOF);
+ if (Rebase)
+ printRebaseTable(MachOOF);
+ if (Bind)
+ printBindTable(MachOOF);
+ if (LazyBind)
+ printLazyBindTable(MachOOF);
+ if (WeakBind)
+ printWeakBindTable(MachOOF);
+}
+
+// printUnknownCPUType() helps print_fat_headers for unknown CPU's.
+static void printUnknownCPUType(uint32_t cputype, uint32_t cpusubtype) {
+ outs() << " cputype (" << cputype << ")\n";
+ outs() << " cpusubtype (" << cpusubtype << ")\n";
+}
+
+// printCPUType() helps print_fat_headers by printing the cputype and
+// pusubtype (symbolically for the one's it knows about).
+static void printCPUType(uint32_t cputype, uint32_t cpusubtype) {
+ switch (cputype) {
+ case MachO::CPU_TYPE_I386:
+ switch (cpusubtype) {
+ case MachO::CPU_SUBTYPE_I386_ALL:
+ outs() << " cputype CPU_TYPE_I386\n";
+ outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_X86_64:
+ switch (cpusubtype) {
+ case MachO::CPU_SUBTYPE_X86_64_ALL:
+ outs() << " cputype CPU_TYPE_X86_64\n";
+ outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n";
+ break;
+ case MachO::CPU_SUBTYPE_X86_64_H:
+ outs() << " cputype CPU_TYPE_X86_64\n";
+ outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_ARM:
+ switch (cpusubtype) {
+ case MachO::CPU_SUBTYPE_ARM_ALL:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V4T:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V5TEJ:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_XSCALE:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V6:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V6M:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7EM:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7K:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7M:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n";
+ break;
+ case MachO::CPU_SUBTYPE_ARM_V7S:
+ outs() << " cputype CPU_TYPE_ARM\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ case MachO::CPU_TYPE_ARM64:
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_ARM64_ALL:
+ outs() << " cputype CPU_TYPE_ARM64\n";
+ outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n";
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+ break;
+ default:
+ printUnknownCPUType(cputype, cpusubtype);
+ break;
+ }
+}
+
+static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB,
+ bool verbose) {
+ outs() << "Fat headers\n";
+ if (verbose)
+ outs() << "fat_magic FAT_MAGIC\n";
+ else
+ outs() << "fat_magic " << format("0x%" PRIx32, MachO::FAT_MAGIC) << "\n";
+
+ uint32_t nfat_arch = UB->getNumberOfObjects();
+ StringRef Buf = UB->getData();
+ uint64_t size = Buf.size();
+ uint64_t big_size = sizeof(struct MachO::fat_header) +
+ nfat_arch * sizeof(struct MachO::fat_arch);
+ outs() << "nfat_arch " << UB->getNumberOfObjects();
+ if (nfat_arch == 0)
+ outs() << " (malformed, contains zero architecture types)\n";
+ else if (big_size > size)
+ outs() << " (malformed, architectures past end of file)\n";
+ else
+ outs() << "\n";
+
+ for (uint32_t i = 0; i < nfat_arch; ++i) {
+ MachOUniversalBinary::ObjectForArch OFA(UB, i);
+ uint32_t cputype = OFA.getCPUType();
+ uint32_t cpusubtype = OFA.getCPUSubType();
+ outs() << "architecture ";
+ for (uint32_t j = 0; i != 0 && j <= i - 1; j++) {
+ MachOUniversalBinary::ObjectForArch other_OFA(UB, j);
+ uint32_t other_cputype = other_OFA.getCPUType();
+ uint32_t other_cpusubtype = other_OFA.getCPUSubType();
+ if (cputype != 0 && cpusubtype != 0 && cputype == other_cputype &&
+ (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) ==
+ (other_cpusubtype & ~MachO::CPU_SUBTYPE_MASK)) {
+ outs() << "(illegal duplicate architecture) ";
+ break;
+ }
+ }
+ if (verbose) {
+ outs() << OFA.getArchTypeName() << "\n";
+ printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ } else {
+ outs() << i << "\n";
+ outs() << " cputype " << cputype << "\n";
+ outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK)
+ << "\n";
+ }
+ if (verbose &&
+ (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64)
+ outs() << " capabilities CPU_SUBTYPE_LIB64\n";
+ else
+ outs() << " capabilities "
+ << format("0x%" PRIx32,
+ (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24) << "\n";
+ outs() << " offset " << OFA.getOffset();
+ if (OFA.getOffset() > size)
+ outs() << " (past end of file)";
+ if (OFA.getOffset() % (1 << OFA.getAlign()) != 0)
+ outs() << " (not aligned on it's alignment (2^" << OFA.getAlign() << ")";
+ outs() << "\n";
+ outs() << " size " << OFA.getSize();
+ big_size = OFA.getOffset() + OFA.getSize();
+ if (big_size > size)
+ outs() << " (past end of file)";
+ outs() << "\n";
+ outs() << " align 2^" << OFA.getAlign() << " (" << (1 << OFA.getAlign())
+ << ")\n";
+ }
+}
+
+static void printArchiveChild(const Archive::Child &C, bool verbose,
+ bool print_offset) {
+ if (print_offset)
+ outs() << C.getChildOffset() << "\t";
+ sys::fs::perms Mode = C.getAccessMode();
+ if (verbose) {
+ // FIXME: this first dash, "-", is for (Mode & S_IFMT) == S_IFREG.
+ // But there is nothing in sys::fs::perms for S_IFMT or S_IFREG.
+ outs() << "-";
+ outs() << ((Mode & sys::fs::owner_read) ? "r" : "-");
+ outs() << ((Mode & sys::fs::owner_write) ? "w" : "-");
+ outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-");
+ outs() << ((Mode & sys::fs::group_read) ? "r" : "-");
+ outs() << ((Mode & sys::fs::group_write) ? "w" : "-");
+ outs() << ((Mode & sys::fs::group_exe) ? "x" : "-");
+ outs() << ((Mode & sys::fs::others_read) ? "r" : "-");
+ outs() << ((Mode & sys::fs::others_write) ? "w" : "-");
+ outs() << ((Mode & sys::fs::others_exe) ? "x" : "-");
+ } else {
+ outs() << format("0%o ", Mode);
+ }
+
+ unsigned UID = C.getUID();
+ outs() << format("%3d/", UID);
+ unsigned GID = C.getGID();
+ outs() << format("%-3d ", GID);
+ ErrorOr<uint64_t> Size = C.getRawSize();
+ if (std::error_code EC = Size.getError())
+ report_fatal_error(EC.message());
+ outs() << format("%5" PRId64, Size.get()) << " ";
+
+ StringRef RawLastModified = C.getRawLastModified();
+ if (verbose) {
+ unsigned Seconds;
+ if (RawLastModified.getAsInteger(10, Seconds))
+ outs() << "(date: \"%s\" contains non-decimal chars) " << RawLastModified;
+ else {
+ // Since cime(3) returns a 26 character string of the form:
+ // "Sun Sep 16 01:03:52 1973\n\0"
+ // just print 24 characters.
+ time_t t = Seconds;
+ outs() << format("%.24s ", ctime(&t));
+ }
+ } else {
+ outs() << RawLastModified << " ";
+ }
+
+ if (verbose) {
+ ErrorOr<StringRef> NameOrErr = C.getName();
+ if (NameOrErr.getError()) {
+ StringRef RawName = C.getRawName();
+ outs() << RawName << "\n";
+ } else {
+ StringRef Name = NameOrErr.get();
+ outs() << Name << "\n";
+ }
+ } else {
+ StringRef RawName = C.getRawName();
+ outs() << RawName << "\n";
+ }
+}
+
+static void printArchiveHeaders(Archive *A, bool verbose, bool print_offset) {
+ for (Archive::child_iterator I = A->child_begin(false), E = A->child_end();
+ I != E; ++I) {
+ if (std::error_code EC = I->getError())
+ report_fatal_error(EC.message());
+ const Archive::Child &C = **I;
+ printArchiveChild(C, verbose, print_offset);
+ }
+}
+
+// ParseInputMachO() parses the named Mach-O file in Filename and handles the
+// -arch flags selecting just those slices as specified by them and also parses
+// archive files. Then for each individual Mach-O file ProcessMachO() is
+// called to process the file based on the command line options.
+void llvm::ParseInputMachO(StringRef Filename) {
+ // Check for -arch all and verifiy the -arch flags are valid.
+ for (unsigned i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == "all") {
+ ArchAll = true;
+ } else {
+ if (!MachOObjectFile::isValidArch(ArchFlags[i])) {
+ errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] +
+ "'for the -arch option\n";
+ return;
+ }
+ }
+ }
+
+ // Attempt to open the binary.
+ ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
+ if (std::error_code EC = BinaryOrErr.getError()) {
+ errs() << "llvm-objdump: '" << Filename << "': " << EC.message() << ".\n";
+ return;
+ }
+ Binary &Bin = *BinaryOrErr.get().getBinary();
+
+ if (Archive *A = dyn_cast<Archive>(&Bin)) {
+ outs() << "Archive : " << Filename << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A, !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
+ I != E; ++I) {
+ if (std::error_code EC = I->getError())
+ report_error(Filename, EC);
+ auto &C = I->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ ProcessMachO(Filename, O, O->getFileName());
+ }
+ }
+ return;
+ }
+ if (UniversalHeaders) {
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin))
+ printMachOUniversalHeaders(UB, !NonVerbose);
+ }
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
+ // If we have a list of architecture flags specified dump only those.
+ if (!ArchAll && ArchFlags.size() != 0) {
+ // Look for a slice in the universal binary that matches each ArchFlag.
+ bool ArchFound;
+ for (unsigned i = 0; i < ArchFlags.size(); ++i) {
+ ArchFound = false;
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ if (ArchFlags[i] == I->getArchTypeName()) {
+ ArchFound = true;
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
+ I->getAsObjectFile();
+ std::string ArchitectureName = "";
+ if (ArchFlags.size() > 1)
+ ArchitectureName = I->getArchTypeName();
+ if (ObjOrErr) {
+ ObjectFile &O = *ObjOrErr.get();
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
+ ProcessMachO(Filename, MachOOF, "", ArchitectureName);
+ } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
+ I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ outs() << "Archive : " << Filename;
+ if (!ArchitectureName.empty())
+ outs() << " (architecture " << ArchitectureName << ")";
+ outs() << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ if (std::error_code EC = AI->getError())
+ report_error(Filename, EC);
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O =
+ dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
+ ProcessMachO(Filename, O, O->getFileName(), ArchitectureName);
+ }
+ }
+ }
+ }
+ if (!ArchFound) {
+ errs() << "llvm-objdump: file: " + Filename + " does not contain "
+ << "architecture: " + ArchFlags[i] + "\n";
+ return;
+ }
+ }
+ return;
+ }
+ // No architecture flags were specified so if this contains a slice that
+ // matches the host architecture dump only that.
+ if (!ArchAll) {
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ if (MachOObjectFile::getHostArch().getArchName() ==
+ I->getArchTypeName()) {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::string ArchiveName;
+ ArchiveName.clear();
+ if (ObjOrErr) {
+ ObjectFile &O = *ObjOrErr.get();
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
+ ProcessMachO(Filename, MachOOF);
+ } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
+ I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ outs() << "Archive : " << Filename << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ if (std::error_code EC = AI->getError())
+ report_error(Filename, EC);
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O =
+ dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
+ ProcessMachO(Filename, O, O->getFileName());
+ }
+ }
+ return;
+ }
+ }
+ }
+ // Either all architectures have been specified or none have been specified
+ // and this does not contain the host architecture so dump all the slices.
+ bool moreThanOneArch = UB->getNumberOfObjects() > 1;
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::string ArchitectureName = "";
+ if (moreThanOneArch)
+ ArchitectureName = I->getArchTypeName();
+ if (ObjOrErr) {
+ ObjectFile &Obj = *ObjOrErr.get();
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj))
+ ProcessMachO(Filename, MachOOF, "", ArchitectureName);
+ } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ outs() << "Archive : " << Filename;
+ if (!ArchitectureName.empty())
+ outs() << " (architecture " << ArchitectureName << ")";
+ outs() << "\n";
+ if (ArchiveHeaders)
+ printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
+ for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
+ AI != AE; ++AI) {
+ if (std::error_code EC = AI->getError())
+ report_error(Filename, EC);
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (ChildOrErr.getError())
+ continue;
+ if (MachOObjectFile *O =
+ dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O))
+ ProcessMachO(Filename, MachOOF, MachOOF->getFileName(),
+ ArchitectureName);
+ }
+ }
+ }
+ }
+ return;
+ }
+ if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) {
+ ProcessMachO(Filename, MachOOF);
+ } else
+ errs() << "llvm-objdump: '" << Filename << "': "
+ << "Object is not a Mach-O file type.\n";
+ } else
+ report_error(Filename, object_error::invalid_file_type);
+}
+
+typedef std::pair<uint64_t, const char *> BindInfoEntry;
+typedef std::vector<BindInfoEntry> BindTable;
+typedef BindTable::iterator bind_table_iterator;
+
+// The block of info used by the Symbolizer call backs.
+struct DisassembleInfo {
+ bool verbose;
+ MachOObjectFile *O;
+ SectionRef S;
+ SymbolAddressMap *AddrMap;
+ std::vector<SectionRef> *Sections;
+ const char *class_name;
+ const char *selector_name;
+ char *method;
+ char *demangled_name;
+ uint64_t adrp_addr;
+ uint32_t adrp_inst;
+ BindTable *bindtable;
+ uint32_t depth;
+};
+
+// SymbolizerGetOpInfo() is the operand information call back function.
+// This is called to get the symbolic information for operand(s) of an
+// instruction when it is being done. This routine does this from
+// the relocation information, symbol table, etc. That block of information
+// is a pointer to the struct DisassembleInfo that was passed when the
+// disassembler context was created and passed to back to here when
+// called back by the disassembler for instruction operands that could have
+// relocation information. The address of the instruction containing operand is
+// at the Pc parameter. The immediate value the operand has is passed in
+// op_info->Value and is at Offset past the start of the instruction and has a
+// byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the
+// LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol
+// names and addends of the symbolic expression to add for the operand. The
+// value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic
+// information is returned then this function returns 1 else it returns 0.
+static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset,
+ uint64_t Size, int TagType, void *TagBuf) {
+ struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo;
+ struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf;
+ uint64_t value = op_info->Value;
+
+ // Make sure all fields returned are zero if we don't set them.
+ memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1));
+ op_info->Value = value;
+
+ // If the TagType is not the value 1 which it code knows about or if no
+ // verbose symbolic information is wanted then just return 0, indicating no
+ // information is being returned.
+ if (TagType != 1 || !info->verbose)
+ return 0;
+
+ unsigned int Arch = info->O->getArch();
+ if (Arch == Triple::x86) {
+ if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
+ return 0;
+ if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
+ // TODO:
+ // Search the external relocation entries of a fully linked image
+ // (if any) for an entry that matches this segment offset.
+ // uint32_t seg_offset = (Pc + Offset);
+ return 0;
+ }
+ // In MH_OBJECT filetypes search the section's relocation entries (if any)
+ // for an entry for this section offset.
+ uint32_t sect_addr = info->S.getAddress();
+ uint32_t sect_offset = (Pc + Offset) - sect_addr;
+ bool reloc_found = false;
+ DataRefImpl Rel;
+ MachO::any_relocation_info RE;
+ bool isExtern = false;
+ SymbolRef Symbol;
+ bool r_scattered = false;
+ uint32_t r_value, pair_r_value, r_type;
+ for (const RelocationRef &Reloc : info->S.relocations()) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ if (RelocOffset == sect_offset) {
+ Rel = Reloc.getRawDataRefImpl();
+ RE = info->O->getRelocation(Rel);
+ r_type = info->O->getAnyRelocationType(RE);
+ r_scattered = info->O->isRelocationScattered(RE);
+ if (r_scattered) {
+ r_value = info->O->getScatteredRelocationValue(RE);
+ if (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
+ r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) {
+ DataRefImpl RelNext = Rel;
+ info->O->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext;
+ RENext = info->O->getRelocation(RelNext);
+ if (info->O->isRelocationScattered(RENext))
+ pair_r_value = info->O->getScatteredRelocationValue(RENext);
+ else
+ return 0;
+ }
+ } else {
+ isExtern = info->O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ symbol_iterator RelocSym = Reloc.getSymbol();
+ Symbol = *RelocSym;
+ }
+ }
+ reloc_found = true;
+ break;
+ }
+ }
+ if (reloc_found && isExtern) {
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ op_info->AddSymbol.Present = 1;
+ op_info->AddSymbol.Name = name;
+ // For i386 extern relocation entries the value in the instruction is
+ // the offset from the symbol, and value is already set in op_info->Value.
+ return 1;
+ }
+ if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
+ r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) {
+ const char *add = GuessSymbolName(r_value, info->AddrMap);
+ const char *sub = GuessSymbolName(pair_r_value, info->AddrMap);
+ uint32_t offset = value - (r_value - pair_r_value);
+ op_info->AddSymbol.Present = 1;
+ if (add != nullptr)
+ op_info->AddSymbol.Name = add;
+ else
+ op_info->AddSymbol.Value = r_value;
+ op_info->SubtractSymbol.Present = 1;
+ if (sub != nullptr)
+ op_info->SubtractSymbol.Name = sub;
+ else
+ op_info->SubtractSymbol.Value = pair_r_value;
+ op_info->Value = offset;
+ return 1;
+ }
+ return 0;
+ }
+ if (Arch == Triple::x86_64) {
+ if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
+ return 0;
+ if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
+ // TODO:
+ // Search the external relocation entries of a fully linked image
+ // (if any) for an entry that matches this segment offset.
+ // uint64_t seg_offset = (Pc + Offset);
+ return 0;
+ }
+ // In MH_OBJECT filetypes search the section's relocation entries (if any)
+ // for an entry for this section offset.
+ uint64_t sect_addr = info->S.getAddress();
+ uint64_t sect_offset = (Pc + Offset) - sect_addr;
+ bool reloc_found = false;
+ DataRefImpl Rel;
+ MachO::any_relocation_info RE;
+ bool isExtern = false;
+ SymbolRef Symbol;
+ for (const RelocationRef &Reloc : info->S.relocations()) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ if (RelocOffset == sect_offset) {
+ Rel = Reloc.getRawDataRefImpl();
+ RE = info->O->getRelocation(Rel);
+ // NOTE: Scattered relocations don't exist on x86_64.
+ isExtern = info->O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ symbol_iterator RelocSym = Reloc.getSymbol();
+ Symbol = *RelocSym;
+ }
+ reloc_found = true;
+ break;
+ }
+ }
+ if (reloc_found && isExtern) {
+ // The Value passed in will be adjusted by the Pc if the instruction
+ // adds the Pc. But for x86_64 external relocation entries the Value
+ // is the offset from the external symbol.
+ if (info->O->getAnyRelocationPCRel(RE))
+ op_info->Value -= Pc + Offset + Size;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ unsigned Type = info->O->getAnyRelocationType(RE);
+ if (Type == MachO::X86_64_RELOC_SUBTRACTOR) {
+ DataRefImpl RelNext = Rel;
+ info->O->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = info->O->getRelocation(RelNext);
+ unsigned TypeNext = info->O->getAnyRelocationType(RENext);
+ bool isExternNext = info->O->getPlainRelocationExternal(RENext);
+ unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext);
+ if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) {
+ op_info->SubtractSymbol.Present = 1;
+ op_info->SubtractSymbol.Name = name;
+ symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum);
+ Symbol = *RelocSymNext;
+ ErrorOr<StringRef> SymNameNext = Symbol.getName();
+ if (std::error_code EC = SymNameNext.getError())
+ report_fatal_error(EC.message());
+ name = SymNameNext->data();
+ }
+ }
+ // TODO: add the VariantKinds to op_info->VariantKind for relocation types
+ // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT.
+ op_info->AddSymbol.Present = 1;
+ op_info->AddSymbol.Name = name;
+ return 1;
+ }
+ return 0;
+ }
+ if (Arch == Triple::arm) {
+ if (Offset != 0 || (Size != 4 && Size != 2))
+ return 0;
+ if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
+ // TODO:
+ // Search the external relocation entries of a fully linked image
+ // (if any) for an entry that matches this segment offset.
+ // uint32_t seg_offset = (Pc + Offset);
+ return 0;
+ }
+ // In MH_OBJECT filetypes search the section's relocation entries (if any)
+ // for an entry for this section offset.
+ uint32_t sect_addr = info->S.getAddress();
+ uint32_t sect_offset = (Pc + Offset) - sect_addr;
+ DataRefImpl Rel;
+ MachO::any_relocation_info RE;
+ bool isExtern = false;
+ SymbolRef Symbol;
+ bool r_scattered = false;
+ uint32_t r_value, pair_r_value, r_type, r_length, other_half;
+ auto Reloc =
+ std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
+ [&](const RelocationRef &Reloc) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ return RelocOffset == sect_offset;
+ });
+
+ if (Reloc == info->S.relocations().end())
+ return 0;
+
+ Rel = Reloc->getRawDataRefImpl();
+ RE = info->O->getRelocation(Rel);
+ r_length = info->O->getAnyRelocationLength(RE);
+ r_scattered = info->O->isRelocationScattered(RE);
+ if (r_scattered) {
+ r_value = info->O->getScatteredRelocationValue(RE);
+ r_type = info->O->getScatteredRelocationType(RE);
+ } else {
+ r_type = info->O->getAnyRelocationType(RE);
+ isExtern = info->O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ symbol_iterator RelocSym = Reloc->getSymbol();
+ Symbol = *RelocSym;
+ }
+ }
+ if (r_type == MachO::ARM_RELOC_HALF ||
+ r_type == MachO::ARM_RELOC_SECTDIFF ||
+ r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF ||
+ r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
+ DataRefImpl RelNext = Rel;
+ info->O->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext;
+ RENext = info->O->getRelocation(RelNext);
+ other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff;
+ if (info->O->isRelocationScattered(RENext))
+ pair_r_value = info->O->getScatteredRelocationValue(RENext);
+ }
+
+ if (isExtern) {
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ op_info->AddSymbol.Present = 1;
+ op_info->AddSymbol.Name = name;
+ switch (r_type) {
+ case MachO::ARM_RELOC_HALF:
+ if ((r_length & 0x1) == 1) {
+ op_info->Value = value << 16 | other_half;
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
+ } else {
+ op_info->Value = other_half << 16 | value;
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
+ }
+ break;
+ default:
+ break;
+ }
+ return 1;
+ }
+ // If we have a branch that is not an external relocation entry then
+ // return 0 so the code in tryAddingSymbolicOperand() can use the
+ // SymbolLookUp call back with the branch target address to look up the
+ // symbol and possiblity add an annotation for a symbol stub.
+ if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 ||
+ r_type == MachO::ARM_THUMB_RELOC_BR22))
+ return 0;
+
+ uint32_t offset = 0;
+ if (r_type == MachO::ARM_RELOC_HALF ||
+ r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
+ if ((r_length & 0x1) == 1)
+ value = value << 16 | other_half;
+ else
+ value = other_half << 16 | value;
+ }
+ if (r_scattered && (r_type != MachO::ARM_RELOC_HALF &&
+ r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) {
+ offset = value - r_value;
+ value = r_value;
+ }
+
+ if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
+ if ((r_length & 0x1) == 1)
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
+ else
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
+ const char *add = GuessSymbolName(r_value, info->AddrMap);
+ const char *sub = GuessSymbolName(pair_r_value, info->AddrMap);
+ int32_t offset = value - (r_value - pair_r_value);
+ op_info->AddSymbol.Present = 1;
+ if (add != nullptr)
+ op_info->AddSymbol.Name = add;
+ else
+ op_info->AddSymbol.Value = r_value;
+ op_info->SubtractSymbol.Present = 1;
+ if (sub != nullptr)
+ op_info->SubtractSymbol.Name = sub;
+ else
+ op_info->SubtractSymbol.Value = pair_r_value;
+ op_info->Value = offset;
+ return 1;
+ }
+
+ op_info->AddSymbol.Present = 1;
+ op_info->Value = offset;
+ if (r_type == MachO::ARM_RELOC_HALF) {
+ if ((r_length & 0x1) == 1)
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
+ else
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
+ }
+ const char *add = GuessSymbolName(value, info->AddrMap);
+ if (add != nullptr) {
+ op_info->AddSymbol.Name = add;
+ return 1;
+ }
+ op_info->AddSymbol.Value = value;
+ return 1;
+ }
+ if (Arch == Triple::aarch64) {
+ if (Offset != 0 || Size != 4)
+ return 0;
+ if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
+ // TODO:
+ // Search the external relocation entries of a fully linked image
+ // (if any) for an entry that matches this segment offset.
+ // uint64_t seg_offset = (Pc + Offset);
+ return 0;
+ }
+ // In MH_OBJECT filetypes search the section's relocation entries (if any)
+ // for an entry for this section offset.
+ uint64_t sect_addr = info->S.getAddress();
+ uint64_t sect_offset = (Pc + Offset) - sect_addr;
+ auto Reloc =
+ std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
+ [&](const RelocationRef &Reloc) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ return RelocOffset == sect_offset;
+ });
+
+ if (Reloc == info->S.relocations().end())
+ return 0;
+
+ DataRefImpl Rel = Reloc->getRawDataRefImpl();
+ MachO::any_relocation_info RE = info->O->getRelocation(Rel);
+ uint32_t r_type = info->O->getAnyRelocationType(RE);
+ if (r_type == MachO::ARM64_RELOC_ADDEND) {
+ DataRefImpl RelNext = Rel;
+ info->O->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = info->O->getRelocation(RelNext);
+ if (value == 0) {
+ value = info->O->getPlainRelocationSymbolNum(RENext);
+ op_info->Value = value;
+ }
+ }
+ // NOTE: Scattered relocations don't exist on arm64.
+ if (!info->O->getPlainRelocationExternal(RE))
+ return 0;
+ ErrorOr<StringRef> SymName = Reloc->getSymbol()->getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ op_info->AddSymbol.Present = 1;
+ op_info->AddSymbol.Name = name;
+
+ switch (r_type) {
+ case MachO::ARM64_RELOC_PAGE21:
+ /* @page */
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE;
+ break;
+ case MachO::ARM64_RELOC_PAGEOFF12:
+ /* @pageoff */
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF;
+ break;
+ case MachO::ARM64_RELOC_GOT_LOAD_PAGE21:
+ /* @gotpage */
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE;
+ break;
+ case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12:
+ /* @gotpageoff */
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF;
+ break;
+ case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21:
+ /* @tvlppage is not implemented in llvm-mc */
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP;
+ break;
+ case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12:
+ /* @tvlppageoff is not implemented in llvm-mc */
+ op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF;
+ break;
+ default:
+ case MachO::ARM64_RELOC_BRANCH26:
+ op_info->VariantKind = LLVMDisassembler_VariantKind_None;
+ break;
+ }
+ return 1;
+ }
+ return 0;
+}
+
+// GuessCstringPointer is passed the address of what might be a pointer to a
+// literal string in a cstring section. If that address is in a cstring section
+// it returns a pointer to that string. Else it returns nullptr.
+static const char *GuessCstringPointer(uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ for (const auto &Load : info->O->load_commands()) {
+ if (Load.C.cmd == MachO::LC_SEGMENT_64) {
+ MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section_64 Sec = info->O->getSection64(Load, J);
+ uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
+ if (section_type == MachO::S_CSTRING_LITERALS &&
+ ReferenceValue >= Sec.addr &&
+ ReferenceValue < Sec.addr + Sec.size) {
+ uint64_t sect_offset = ReferenceValue - Sec.addr;
+ uint64_t object_offset = Sec.offset + sect_offset;
+ StringRef MachOContents = info->O->getData();
+ uint64_t object_size = MachOContents.size();
+ const char *object_addr = (const char *)MachOContents.data();
+ if (object_offset < object_size) {
+ const char *name = object_addr + object_offset;
+ return name;
+ } else {
+ return nullptr;
+ }
+ }
+ }
+ } else if (Load.C.cmd == MachO::LC_SEGMENT) {
+ MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section Sec = info->O->getSection(Load, J);
+ uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
+ if (section_type == MachO::S_CSTRING_LITERALS &&
+ ReferenceValue >= Sec.addr &&
+ ReferenceValue < Sec.addr + Sec.size) {
+ uint64_t sect_offset = ReferenceValue - Sec.addr;
+ uint64_t object_offset = Sec.offset + sect_offset;
+ StringRef MachOContents = info->O->getData();
+ uint64_t object_size = MachOContents.size();
+ const char *object_addr = (const char *)MachOContents.data();
+ if (object_offset < object_size) {
+ const char *name = object_addr + object_offset;
+ return name;
+ } else {
+ return nullptr;
+ }
+ }
+ }
+ }
+ }
+ return nullptr;
+}
+
+// GuessIndirectSymbol returns the name of the indirect symbol for the
+// ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe
+// an address of a symbol stub or a lazy or non-lazy pointer to associate the
+// symbol name being referenced by the stub or pointer.
+static const char *GuessIndirectSymbol(uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand();
+ MachO::symtab_command Symtab = info->O->getSymtabLoadCommand();
+ for (const auto &Load : info->O->load_commands()) {
+ if (Load.C.cmd == MachO::LC_SEGMENT_64) {
+ MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section_64 Sec = info->O->getSection64(Load, J);
+ uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
+ if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
+ section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
+ section_type == MachO::S_SYMBOL_STUBS) &&
+ ReferenceValue >= Sec.addr &&
+ ReferenceValue < Sec.addr + Sec.size) {
+ uint32_t stride;
+ if (section_type == MachO::S_SYMBOL_STUBS)
+ stride = Sec.reserved2;
+ else
+ stride = 8;
+ if (stride == 0)
+ return nullptr;
+ uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride;
+ if (index < Dysymtab.nindirectsyms) {
+ uint32_t indirect_symbol =
+ info->O->getIndirectSymbolTableEntry(Dysymtab, index);
+ if (indirect_symbol < Symtab.nsyms) {
+ symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol);
+ SymbolRef Symbol = *Sym;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ return name;
+ }
+ }
+ }
+ }
+ } else if (Load.C.cmd == MachO::LC_SEGMENT) {
+ MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section Sec = info->O->getSection(Load, J);
+ uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
+ if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
+ section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
+ section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
+ section_type == MachO::S_SYMBOL_STUBS) &&
+ ReferenceValue >= Sec.addr &&
+ ReferenceValue < Sec.addr + Sec.size) {
+ uint32_t stride;
+ if (section_type == MachO::S_SYMBOL_STUBS)
+ stride = Sec.reserved2;
+ else
+ stride = 4;
+ if (stride == 0)
+ return nullptr;
+ uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride;
+ if (index < Dysymtab.nindirectsyms) {
+ uint32_t indirect_symbol =
+ info->O->getIndirectSymbolTableEntry(Dysymtab, index);
+ if (indirect_symbol < Symtab.nsyms) {
+ symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol);
+ SymbolRef Symbol = *Sym;
+ ErrorOr<StringRef> SymName = Symbol.getName();
+ if (std::error_code EC = SymName.getError())
+ report_fatal_error(EC.message());
+ const char *name = SymName->data();
+ return name;
+ }
+ }
+ }
+ }
+ }
+ }
+ return nullptr;
+}
+
+// method_reference() is called passing it the ReferenceName that might be
+// a reference it to an Objective-C method call. If so then it allocates and
+// assembles a method call string with the values last seen and saved in
+// the DisassembleInfo's class_name and selector_name fields. This is saved
+// into the method field of the info and any previous string is free'ed.
+// Then the class_name field in the info is set to nullptr. The method call
+// string is set into ReferenceName and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call
+// then both ReferenceType and ReferenceName are left unchanged.
+static void method_reference(struct DisassembleInfo *info,
+ uint64_t *ReferenceType,
+ const char **ReferenceName) {
+ unsigned int Arch = info->O->getArch();
+ if (*ReferenceName != nullptr) {
+ if (strcmp(*ReferenceName, "_objc_msgSend") == 0) {
+ if (info->selector_name != nullptr) {
+ if (info->method != nullptr)
+ free(info->method);
+ if (info->class_name != nullptr) {
+ info->method = (char *)malloc(5 + strlen(info->class_name) +
+ strlen(info->selector_name));
+ if (info->method != nullptr) {
+ strcpy(info->method, "+[");
+ strcat(info->method, info->class_name);
+ strcat(info->method, " ");
+ strcat(info->method, info->selector_name);
+ strcat(info->method, "]");
+ *ReferenceName = info->method;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
+ }
+ } else {
+ info->method = (char *)malloc(9 + strlen(info->selector_name));
+ if (info->method != nullptr) {
+ if (Arch == Triple::x86_64)
+ strcpy(info->method, "-[%rdi ");
+ else if (Arch == Triple::aarch64)
+ strcpy(info->method, "-[x0 ");
+ else
+ strcpy(info->method, "-[r? ");
+ strcat(info->method, info->selector_name);
+ strcat(info->method, "]");
+ *ReferenceName = info->method;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
+ }
+ }
+ info->class_name = nullptr;
+ }
+ } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) {
+ if (info->selector_name != nullptr) {
+ if (info->method != nullptr)
+ free(info->method);
+ info->method = (char *)malloc(17 + strlen(info->selector_name));
+ if (info->method != nullptr) {
+ if (Arch == Triple::x86_64)
+ strcpy(info->method, "-[[%rdi super] ");
+ else if (Arch == Triple::aarch64)
+ strcpy(info->method, "-[[x0 super] ");
+ else
+ strcpy(info->method, "-[[r? super] ");
+ strcat(info->method, info->selector_name);
+ strcat(info->method, "]");
+ *ReferenceName = info->method;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
+ }
+ info->class_name = nullptr;
+ }
+ }
+ }
+}
+
+// GuessPointerPointer() is passed the address of what might be a pointer to
+// a reference to an Objective-C class, selector, message ref or cfstring.
+// If so the value of the pointer is returned and one of the booleans are set
+// to true. If not zero is returned and all the booleans are set to false.
+static uint64_t GuessPointerPointer(uint64_t ReferenceValue,
+ struct DisassembleInfo *info,
+ bool &classref, bool &selref, bool &msgref,
+ bool &cfstring) {
+ classref = false;
+ selref = false;
+ msgref = false;
+ cfstring = false;
+ for (const auto &Load : info->O->load_commands()) {
+ if (Load.C.cmd == MachO::LC_SEGMENT_64) {
+ MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
+ for (unsigned J = 0; J < Seg.nsects; ++J) {
+ MachO::section_64 Sec = info->O->getSection64(Load, J);
+ if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 ||
+ strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 ||
+ strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 ||
+ strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 ||
+ strncmp(Sec.sectname, "__cfstring", 16) == 0) &&
+ ReferenceValue >= Sec.addr &&
+ ReferenceValue < Sec.addr + Sec.size) {
+ uint64_t sect_offset = ReferenceValue - Sec.addr;
+ uint64_t object_offset = Sec.offset + sect_offset;
+ StringRef MachOContents = info->O->getData();
+ uint64_t object_size = MachOContents.size();
+ const char *object_addr = (const char *)MachOContents.data();
+ if (object_offset < object_size) {
+ uint64_t pointer_value;
+ memcpy(&pointer_value, object_addr + object_offset,
+ sizeof(uint64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(pointer_value);
+ if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0)
+ selref = true;
+ else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 ||
+ strncmp(Sec.sectname, "__objc_superrefs", 16) == 0)
+ classref = true;
+ else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 &&
+ ReferenceValue + 8 < Sec.addr + Sec.size) {
+ msgref = true;
+ memcpy(&pointer_value, object_addr + object_offset + 8,
+ sizeof(uint64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(pointer_value);
+ } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0)
+ cfstring = true;
+ return pointer_value;
+ } else {
+ return 0;
+ }
+ }
+ }
+ }
+ // TODO: Look for LC_SEGMENT for 32-bit Mach-O files.
+ }
+ return 0;
+}
+
+// get_pointer_64 returns a pointer to the bytes in the object file at the
+// Address from a section in the Mach-O file. And indirectly returns the
+// offset into the section, number of bytes left in the section past the offset
+// and which section is was being referenced. If the Address is not in a
+// section nullptr is returned.
+static const char *get_pointer_64(uint64_t Address, uint32_t &offset,
+ uint32_t &left, SectionRef &S,
+ DisassembleInfo *info,
+ bool objc_only = false) {
+ offset = 0;
+ left = 0;
+ S = SectionRef();
+ for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) {
+ uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress();
+ uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize();
+ if (SectSize == 0)
+ continue;
+ if (objc_only) {
+ StringRef SectName;
+ ((*(info->Sections))[SectIdx]).getName(SectName);
+ DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl();
+ StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
+ if (SegName != "__OBJC" && SectName != "__cstring")
+ continue;
+ }
+ if (Address >= SectAddress && Address < SectAddress + SectSize) {
+ S = (*(info->Sections))[SectIdx];
+ offset = Address - SectAddress;
+ left = SectSize - offset;
+ StringRef SectContents;
+ ((*(info->Sections))[SectIdx]).getContents(SectContents);
+ return SectContents.data() + offset;
+ }
+ }
+ return nullptr;
+}
+
+static const char *get_pointer_32(uint32_t Address, uint32_t &offset,
+ uint32_t &left, SectionRef &S,
+ DisassembleInfo *info,
+ bool objc_only = false) {
+ return get_pointer_64(Address, offset, left, S, info, objc_only);
+}
+
+// get_symbol_64() returns the name of a symbol (or nullptr) and the address of
+// the symbol indirectly through n_value. Based on the relocation information
+// for the specified section offset in the specified section reference.
+// If no relocation information is found and a non-zero ReferenceValue for the
+// symbol is passed, look up that address in the info's AddrMap.
+static const char *get_symbol_64(uint32_t sect_offset, SectionRef S,
+ DisassembleInfo *info, uint64_t &n_value,
+ uint64_t ReferenceValue = 0) {
+ n_value = 0;
+ if (!info->verbose)
+ return nullptr;
+
+ // See if there is an external relocation entry at the sect_offset.
+ bool reloc_found = false;
+ DataRefImpl Rel;
+ MachO::any_relocation_info RE;
+ bool isExtern = false;
+ SymbolRef Symbol;
+ for (const RelocationRef &Reloc : S.relocations()) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ if (RelocOffset == sect_offset) {
+ Rel = Reloc.getRawDataRefImpl();
+ RE = info->O->getRelocation(Rel);
+ if (info->O->isRelocationScattered(RE))
+ continue;
+ isExtern = info->O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ symbol_iterator RelocSym = Reloc.getSymbol();
+ Symbol = *RelocSym;
+ }
+ reloc_found = true;
+ break;
+ }
+ }
+ // If there is an external relocation entry for a symbol in this section
+ // at this section_offset then use that symbol's value for the n_value
+ // and return its name.
+ const char *SymbolName = nullptr;
+ if (reloc_found && isExtern) {
+ n_value = Symbol.getValue();
+ ErrorOr<StringRef> NameOrError = Symbol.getName();
+ if (std::error_code EC = NameOrError.getError())
+ report_fatal_error(EC.message());
+ StringRef Name = *NameOrError;
+ if (!Name.empty()) {
+ SymbolName = Name.data();
+ return SymbolName;
+ }
+ }
+
+ // TODO: For fully linked images, look through the external relocation
+ // entries off the dynamic symtab command. For these the r_offset is from the
+ // start of the first writeable segment in the Mach-O file. So the offset
+ // to this section from that segment is passed to this routine by the caller,
+ // as the database_offset. Which is the difference of the section's starting
+ // address and the first writable segment.
+ //
+ // NOTE: need add passing the database_offset to this routine.
+
+ // We did not find an external relocation entry so look up the ReferenceValue
+ // as an address of a symbol and if found return that symbol's name.
+ SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
+
+ return SymbolName;
+}
+
+static const char *get_symbol_32(uint32_t sect_offset, SectionRef S,
+ DisassembleInfo *info,
+ uint32_t ReferenceValue) {
+ uint64_t n_value64;
+ return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue);
+}
+
+// These are structs in the Objective-C meta data and read to produce the
+// comments for disassembly. While these are part of the ABI they are no
+// public defintions. So the are here not in include/llvm/Support/MachO.h .
+
+// The cfstring object in a 64-bit Mach-O file.
+struct cfstring64_t {
+ uint64_t isa; // class64_t * (64-bit pointer)
+ uint64_t flags; // flag bits
+ uint64_t characters; // char * (64-bit pointer)
+ uint64_t length; // number of non-NULL characters in above
+};
+
+// The class object in a 64-bit Mach-O file.
+struct class64_t {
+ uint64_t isa; // class64_t * (64-bit pointer)
+ uint64_t superclass; // class64_t * (64-bit pointer)
+ uint64_t cache; // Cache (64-bit pointer)
+ uint64_t vtable; // IMP * (64-bit pointer)
+ uint64_t data; // class_ro64_t * (64-bit pointer)
+};
+
+struct class32_t {
+ uint32_t isa; /* class32_t * (32-bit pointer) */
+ uint32_t superclass; /* class32_t * (32-bit pointer) */
+ uint32_t cache; /* Cache (32-bit pointer) */
+ uint32_t vtable; /* IMP * (32-bit pointer) */
+ uint32_t data; /* class_ro32_t * (32-bit pointer) */
+};
+
+struct class_ro64_t {
+ uint32_t flags;
+ uint32_t instanceStart;
+ uint32_t instanceSize;
+ uint32_t reserved;
+ uint64_t ivarLayout; // const uint8_t * (64-bit pointer)
+ uint64_t name; // const char * (64-bit pointer)
+ uint64_t baseMethods; // const method_list_t * (64-bit pointer)
+ uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer)
+ uint64_t ivars; // const ivar_list_t * (64-bit pointer)
+ uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer)
+ uint64_t baseProperties; // const struct objc_property_list (64-bit pointer)
+};
+
+struct class_ro32_t {
+ uint32_t flags;
+ uint32_t instanceStart;
+ uint32_t instanceSize;
+ uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */
+ uint32_t name; /* const char * (32-bit pointer) */
+ uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */
+ uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */
+ uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */
+ uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */
+ uint32_t baseProperties; /* const struct objc_property_list *
+ (32-bit pointer) */
+};
+
+/* Values for class_ro{64,32}_t->flags */
+#define RO_META (1 << 0)
+#define RO_ROOT (1 << 1)
+#define RO_HAS_CXX_STRUCTORS (1 << 2)
+
+struct method_list64_t {
+ uint32_t entsize;
+ uint32_t count;
+ /* struct method64_t first; These structures follow inline */
+};
+
+struct method_list32_t {
+ uint32_t entsize;
+ uint32_t count;
+ /* struct method32_t first; These structures follow inline */
+};
+
+struct method64_t {
+ uint64_t name; /* SEL (64-bit pointer) */
+ uint64_t types; /* const char * (64-bit pointer) */
+ uint64_t imp; /* IMP (64-bit pointer) */
+};
+
+struct method32_t {
+ uint32_t name; /* SEL (32-bit pointer) */
+ uint32_t types; /* const char * (32-bit pointer) */
+ uint32_t imp; /* IMP (32-bit pointer) */
+};
+
+struct protocol_list64_t {
+ uint64_t count; /* uintptr_t (a 64-bit value) */
+ /* struct protocol64_t * list[0]; These pointers follow inline */
+};
+
+struct protocol_list32_t {
+ uint32_t count; /* uintptr_t (a 32-bit value) */
+ /* struct protocol32_t * list[0]; These pointers follow inline */
+};
+
+struct protocol64_t {
+ uint64_t isa; /* id * (64-bit pointer) */
+ uint64_t name; /* const char * (64-bit pointer) */
+ uint64_t protocols; /* struct protocol_list64_t *
+ (64-bit pointer) */
+ uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */
+ uint64_t classMethods; /* method_list_t * (64-bit pointer) */
+ uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */
+ uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */
+ uint64_t instanceProperties; /* struct objc_property_list *
+ (64-bit pointer) */
+};
+
+struct protocol32_t {
+ uint32_t isa; /* id * (32-bit pointer) */
+ uint32_t name; /* const char * (32-bit pointer) */
+ uint32_t protocols; /* struct protocol_list_t *
+ (32-bit pointer) */
+ uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */
+ uint32_t classMethods; /* method_list_t * (32-bit pointer) */
+ uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */
+ uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */
+ uint32_t instanceProperties; /* struct objc_property_list *
+ (32-bit pointer) */
+};
+
+struct ivar_list64_t {
+ uint32_t entsize;
+ uint32_t count;
+ /* struct ivar64_t first; These structures follow inline */
+};
+
+struct ivar_list32_t {
+ uint32_t entsize;
+ uint32_t count;
+ /* struct ivar32_t first; These structures follow inline */
+};
+
+struct ivar64_t {
+ uint64_t offset; /* uintptr_t * (64-bit pointer) */
+ uint64_t name; /* const char * (64-bit pointer) */
+ uint64_t type; /* const char * (64-bit pointer) */
+ uint32_t alignment;
+ uint32_t size;
+};
+
+struct ivar32_t {
+ uint32_t offset; /* uintptr_t * (32-bit pointer) */
+ uint32_t name; /* const char * (32-bit pointer) */
+ uint32_t type; /* const char * (32-bit pointer) */
+ uint32_t alignment;
+ uint32_t size;
+};
+
+struct objc_property_list64 {
+ uint32_t entsize;
+ uint32_t count;
+ /* struct objc_property64 first; These structures follow inline */
+};
+
+struct objc_property_list32 {
+ uint32_t entsize;
+ uint32_t count;
+ /* struct objc_property32 first; These structures follow inline */
+};
+
+struct objc_property64 {
+ uint64_t name; /* const char * (64-bit pointer) */
+ uint64_t attributes; /* const char * (64-bit pointer) */
+};
+
+struct objc_property32 {
+ uint32_t name; /* const char * (32-bit pointer) */
+ uint32_t attributes; /* const char * (32-bit pointer) */
+};
+
+struct category64_t {
+ uint64_t name; /* const char * (64-bit pointer) */
+ uint64_t cls; /* struct class_t * (64-bit pointer) */
+ uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */
+ uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */
+ uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */
+ uint64_t instanceProperties; /* struct objc_property_list *
+ (64-bit pointer) */
+};
+
+struct category32_t {
+ uint32_t name; /* const char * (32-bit pointer) */
+ uint32_t cls; /* struct class_t * (32-bit pointer) */
+ uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */
+ uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */
+ uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */
+ uint32_t instanceProperties; /* struct objc_property_list *
+ (32-bit pointer) */
+};
+
+struct objc_image_info64 {
+ uint32_t version;
+ uint32_t flags;
+};
+struct objc_image_info32 {
+ uint32_t version;
+ uint32_t flags;
+};
+struct imageInfo_t {
+ uint32_t version;
+ uint32_t flags;
+};
+/* masks for objc_image_info.flags */
+#define OBJC_IMAGE_IS_REPLACEMENT (1 << 0)
+#define OBJC_IMAGE_SUPPORTS_GC (1 << 1)
+
+struct message_ref64 {
+ uint64_t imp; /* IMP (64-bit pointer) */
+ uint64_t sel; /* SEL (64-bit pointer) */
+};
+
+struct message_ref32 {
+ uint32_t imp; /* IMP (32-bit pointer) */
+ uint32_t sel; /* SEL (32-bit pointer) */
+};
+
+// Objective-C 1 (32-bit only) meta data structs.
+
+struct objc_module_t {
+ uint32_t version;
+ uint32_t size;
+ uint32_t name; /* char * (32-bit pointer) */
+ uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */
+};
+
+struct objc_symtab_t {
+ uint32_t sel_ref_cnt;
+ uint32_t refs; /* SEL * (32-bit pointer) */
+ uint16_t cls_def_cnt;
+ uint16_t cat_def_cnt;
+ // uint32_t defs[1]; /* void * (32-bit pointer) variable size */
+};
+
+struct objc_class_t {
+ uint32_t isa; /* struct objc_class * (32-bit pointer) */
+ uint32_t super_class; /* struct objc_class * (32-bit pointer) */
+ uint32_t name; /* const char * (32-bit pointer) */
+ int32_t version;
+ int32_t info;
+ int32_t instance_size;
+ uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */
+ uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */
+ uint32_t cache; /* struct objc_cache * (32-bit pointer) */
+ uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */
+};
+
+#define CLS_GETINFO(cls, infomask) ((cls)->info & (infomask))
+// class is not a metaclass
+#define CLS_CLASS 0x1
+// class is a metaclass
+#define CLS_META 0x2
+
+struct objc_category_t {
+ uint32_t category_name; /* char * (32-bit pointer) */
+ uint32_t class_name; /* char * (32-bit pointer) */
+ uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */
+ uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */
+ uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */
+};
+
+struct objc_ivar_t {
+ uint32_t ivar_name; /* char * (32-bit pointer) */
+ uint32_t ivar_type; /* char * (32-bit pointer) */
+ int32_t ivar_offset;
+};
+
+struct objc_ivar_list_t {
+ int32_t ivar_count;
+ // struct objc_ivar_t ivar_list[1]; /* variable length structure */
+};
+
+struct objc_method_list_t {
+ uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */
+ int32_t method_count;
+ // struct objc_method_t method_list[1]; /* variable length structure */
+};
+
+struct objc_method_t {
+ uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */
+ uint32_t method_types; /* char * (32-bit pointer) */
+ uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...)
+ (32-bit pointer) */
+};
+
+struct objc_protocol_list_t {
+ uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */
+ int32_t count;
+ // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t *
+ // (32-bit pointer) */
+};
+
+struct objc_protocol_t {
+ uint32_t isa; /* struct objc_class * (32-bit pointer) */
+ uint32_t protocol_name; /* char * (32-bit pointer) */
+ uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */
+ uint32_t instance_methods; /* struct objc_method_description_list *
+ (32-bit pointer) */
+ uint32_t class_methods; /* struct objc_method_description_list *
+ (32-bit pointer) */
+};
+
+struct objc_method_description_list_t {
+ int32_t count;
+ // struct objc_method_description_t list[1];
+};
+
+struct objc_method_description_t {
+ uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */
+ uint32_t types; /* char * (32-bit pointer) */
+};
+
+inline void swapStruct(struct cfstring64_t &cfs) {
+ sys::swapByteOrder(cfs.isa);
+ sys::swapByteOrder(cfs.flags);
+ sys::swapByteOrder(cfs.characters);
+ sys::swapByteOrder(cfs.length);
+}
+
+inline void swapStruct(struct class64_t &c) {
+ sys::swapByteOrder(c.isa);
+ sys::swapByteOrder(c.superclass);
+ sys::swapByteOrder(c.cache);
+ sys::swapByteOrder(c.vtable);
+ sys::swapByteOrder(c.data);
+}
+
+inline void swapStruct(struct class32_t &c) {
+ sys::swapByteOrder(c.isa);
+ sys::swapByteOrder(c.superclass);
+ sys::swapByteOrder(c.cache);
+ sys::swapByteOrder(c.vtable);
+ sys::swapByteOrder(c.data);
+}
+
+inline void swapStruct(struct class_ro64_t &cro) {
+ sys::swapByteOrder(cro.flags);
+ sys::swapByteOrder(cro.instanceStart);
+ sys::swapByteOrder(cro.instanceSize);
+ sys::swapByteOrder(cro.reserved);
+ sys::swapByteOrder(cro.ivarLayout);
+ sys::swapByteOrder(cro.name);
+ sys::swapByteOrder(cro.baseMethods);
+ sys::swapByteOrder(cro.baseProtocols);
+ sys::swapByteOrder(cro.ivars);
+ sys::swapByteOrder(cro.weakIvarLayout);
+ sys::swapByteOrder(cro.baseProperties);
+}
+
+inline void swapStruct(struct class_ro32_t &cro) {
+ sys::swapByteOrder(cro.flags);
+ sys::swapByteOrder(cro.instanceStart);
+ sys::swapByteOrder(cro.instanceSize);
+ sys::swapByteOrder(cro.ivarLayout);
+ sys::swapByteOrder(cro.name);
+ sys::swapByteOrder(cro.baseMethods);
+ sys::swapByteOrder(cro.baseProtocols);
+ sys::swapByteOrder(cro.ivars);
+ sys::swapByteOrder(cro.weakIvarLayout);
+ sys::swapByteOrder(cro.baseProperties);
+}
+
+inline void swapStruct(struct method_list64_t &ml) {
+ sys::swapByteOrder(ml.entsize);
+ sys::swapByteOrder(ml.count);
+}
+
+inline void swapStruct(struct method_list32_t &ml) {
+ sys::swapByteOrder(ml.entsize);
+ sys::swapByteOrder(ml.count);
+}
+
+inline void swapStruct(struct method64_t &m) {
+ sys::swapByteOrder(m.name);
+ sys::swapByteOrder(m.types);
+ sys::swapByteOrder(m.imp);
+}
+
+inline void swapStruct(struct method32_t &m) {
+ sys::swapByteOrder(m.name);
+ sys::swapByteOrder(m.types);
+ sys::swapByteOrder(m.imp);
+}
+
+inline void swapStruct(struct protocol_list64_t &pl) {
+ sys::swapByteOrder(pl.count);
+}
+
+inline void swapStruct(struct protocol_list32_t &pl) {
+ sys::swapByteOrder(pl.count);
+}
+
+inline void swapStruct(struct protocol64_t &p) {
+ sys::swapByteOrder(p.isa);
+ sys::swapByteOrder(p.name);
+ sys::swapByteOrder(p.protocols);
+ sys::swapByteOrder(p.instanceMethods);
+ sys::swapByteOrder(p.classMethods);
+ sys::swapByteOrder(p.optionalInstanceMethods);
+ sys::swapByteOrder(p.optionalClassMethods);
+ sys::swapByteOrder(p.instanceProperties);
+}
+
+inline void swapStruct(struct protocol32_t &p) {
+ sys::swapByteOrder(p.isa);
+ sys::swapByteOrder(p.name);
+ sys::swapByteOrder(p.protocols);
+ sys::swapByteOrder(p.instanceMethods);
+ sys::swapByteOrder(p.classMethods);
+ sys::swapByteOrder(p.optionalInstanceMethods);
+ sys::swapByteOrder(p.optionalClassMethods);
+ sys::swapByteOrder(p.instanceProperties);
+}
+
+inline void swapStruct(struct ivar_list64_t &il) {
+ sys::swapByteOrder(il.entsize);
+ sys::swapByteOrder(il.count);
+}
+
+inline void swapStruct(struct ivar_list32_t &il) {
+ sys::swapByteOrder(il.entsize);
+ sys::swapByteOrder(il.count);
+}
+
+inline void swapStruct(struct ivar64_t &i) {
+ sys::swapByteOrder(i.offset);
+ sys::swapByteOrder(i.name);
+ sys::swapByteOrder(i.type);
+ sys::swapByteOrder(i.alignment);
+ sys::swapByteOrder(i.size);
+}
+
+inline void swapStruct(struct ivar32_t &i) {
+ sys::swapByteOrder(i.offset);
+ sys::swapByteOrder(i.name);
+ sys::swapByteOrder(i.type);
+ sys::swapByteOrder(i.alignment);
+ sys::swapByteOrder(i.size);
+}
+
+inline void swapStruct(struct objc_property_list64 &pl) {
+ sys::swapByteOrder(pl.entsize);
+ sys::swapByteOrder(pl.count);
+}
+
+inline void swapStruct(struct objc_property_list32 &pl) {
+ sys::swapByteOrder(pl.entsize);
+ sys::swapByteOrder(pl.count);
+}
+
+inline void swapStruct(struct objc_property64 &op) {
+ sys::swapByteOrder(op.name);
+ sys::swapByteOrder(op.attributes);
+}
+
+inline void swapStruct(struct objc_property32 &op) {
+ sys::swapByteOrder(op.name);
+ sys::swapByteOrder(op.attributes);
+}
+
+inline void swapStruct(struct category64_t &c) {
+ sys::swapByteOrder(c.name);
+ sys::swapByteOrder(c.cls);
+ sys::swapByteOrder(c.instanceMethods);
+ sys::swapByteOrder(c.classMethods);
+ sys::swapByteOrder(c.protocols);
+ sys::swapByteOrder(c.instanceProperties);
+}
+
+inline void swapStruct(struct category32_t &c) {
+ sys::swapByteOrder(c.name);
+ sys::swapByteOrder(c.cls);
+ sys::swapByteOrder(c.instanceMethods);
+ sys::swapByteOrder(c.classMethods);
+ sys::swapByteOrder(c.protocols);
+ sys::swapByteOrder(c.instanceProperties);
+}
+
+inline void swapStruct(struct objc_image_info64 &o) {
+ sys::swapByteOrder(o.version);
+ sys::swapByteOrder(o.flags);
+}
+
+inline void swapStruct(struct objc_image_info32 &o) {
+ sys::swapByteOrder(o.version);
+ sys::swapByteOrder(o.flags);
+}
+
+inline void swapStruct(struct imageInfo_t &o) {
+ sys::swapByteOrder(o.version);
+ sys::swapByteOrder(o.flags);
+}
+
+inline void swapStruct(struct message_ref64 &mr) {
+ sys::swapByteOrder(mr.imp);
+ sys::swapByteOrder(mr.sel);
+}
+
+inline void swapStruct(struct message_ref32 &mr) {
+ sys::swapByteOrder(mr.imp);
+ sys::swapByteOrder(mr.sel);
+}
+
+inline void swapStruct(struct objc_module_t &module) {
+ sys::swapByteOrder(module.version);
+ sys::swapByteOrder(module.size);
+ sys::swapByteOrder(module.name);
+ sys::swapByteOrder(module.symtab);
+}
+
+inline void swapStruct(struct objc_symtab_t &symtab) {
+ sys::swapByteOrder(symtab.sel_ref_cnt);
+ sys::swapByteOrder(symtab.refs);
+ sys::swapByteOrder(symtab.cls_def_cnt);
+ sys::swapByteOrder(symtab.cat_def_cnt);
+}
+
+inline void swapStruct(struct objc_class_t &objc_class) {
+ sys::swapByteOrder(objc_class.isa);
+ sys::swapByteOrder(objc_class.super_class);
+ sys::swapByteOrder(objc_class.name);
+ sys::swapByteOrder(objc_class.version);
+ sys::swapByteOrder(objc_class.info);
+ sys::swapByteOrder(objc_class.instance_size);
+ sys::swapByteOrder(objc_class.ivars);
+ sys::swapByteOrder(objc_class.methodLists);
+ sys::swapByteOrder(objc_class.cache);
+ sys::swapByteOrder(objc_class.protocols);
+}
+
+inline void swapStruct(struct objc_category_t &objc_category) {
+ sys::swapByteOrder(objc_category.category_name);
+ sys::swapByteOrder(objc_category.class_name);
+ sys::swapByteOrder(objc_category.instance_methods);
+ sys::swapByteOrder(objc_category.class_methods);
+ sys::swapByteOrder(objc_category.protocols);
+}
+
+inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) {
+ sys::swapByteOrder(objc_ivar_list.ivar_count);
+}
+
+inline void swapStruct(struct objc_ivar_t &objc_ivar) {
+ sys::swapByteOrder(objc_ivar.ivar_name);
+ sys::swapByteOrder(objc_ivar.ivar_type);
+ sys::swapByteOrder(objc_ivar.ivar_offset);
+}
+
+inline void swapStruct(struct objc_method_list_t &method_list) {
+ sys::swapByteOrder(method_list.obsolete);
+ sys::swapByteOrder(method_list.method_count);
+}
+
+inline void swapStruct(struct objc_method_t &method) {
+ sys::swapByteOrder(method.method_name);
+ sys::swapByteOrder(method.method_types);
+ sys::swapByteOrder(method.method_imp);
+}
+
+inline void swapStruct(struct objc_protocol_list_t &protocol_list) {
+ sys::swapByteOrder(protocol_list.next);
+ sys::swapByteOrder(protocol_list.count);
+}
+
+inline void swapStruct(struct objc_protocol_t &protocol) {
+ sys::swapByteOrder(protocol.isa);
+ sys::swapByteOrder(protocol.protocol_name);
+ sys::swapByteOrder(protocol.protocol_list);
+ sys::swapByteOrder(protocol.instance_methods);
+ sys::swapByteOrder(protocol.class_methods);
+}
+
+inline void swapStruct(struct objc_method_description_list_t &mdl) {
+ sys::swapByteOrder(mdl.count);
+}
+
+inline void swapStruct(struct objc_method_description_t &md) {
+ sys::swapByteOrder(md.name);
+ sys::swapByteOrder(md.types);
+}
+
+static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
+ struct DisassembleInfo *info);
+
+// get_objc2_64bit_class_name() is used for disassembly and is passed a pointer
+// to an Objective-C class and returns the class name. It is also passed the
+// address of the pointer, so when the pointer is zero as it can be in an .o
+// file, that is used to look for an external relocation entry with a symbol
+// name.
+static const char *get_objc2_64bit_class_name(uint64_t pointer_value,
+ uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ const char *r;
+ uint32_t offset, left;
+ SectionRef S;
+
+ // The pointer_value can be 0 in an object file and have a relocation
+ // entry for the class symbol at the ReferenceValue (the address of the
+ // pointer).
+ if (pointer_value == 0) {
+ r = get_pointer_64(ReferenceValue, offset, left, S, info);
+ if (r == nullptr || left < sizeof(uint64_t))
+ return nullptr;
+ uint64_t n_value;
+ const char *symbol_name = get_symbol_64(offset, S, info, n_value);
+ if (symbol_name == nullptr)
+ return nullptr;
+ const char *class_name = strrchr(symbol_name, '$');
+ if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0')
+ return class_name + 2;
+ else
+ return nullptr;
+ }
+
+ // The case were the pointer_value is non-zero and points to a class defined
+ // in this Mach-O file.
+ r = get_pointer_64(pointer_value, offset, left, S, info);
+ if (r == nullptr || left < sizeof(struct class64_t))
+ return nullptr;
+ struct class64_t c;
+ memcpy(&c, r, sizeof(struct class64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(c);
+ if (c.data == 0)
+ return nullptr;
+ r = get_pointer_64(c.data, offset, left, S, info);
+ if (r == nullptr || left < sizeof(struct class_ro64_t))
+ return nullptr;
+ struct class_ro64_t cro;
+ memcpy(&cro, r, sizeof(struct class_ro64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(cro);
+ if (cro.name == 0)
+ return nullptr;
+ const char *name = get_pointer_64(cro.name, offset, left, S, info);
+ return name;
+}
+
+// get_objc2_64bit_cfstring_name is used for disassembly and is passed a
+// pointer to a cfstring and returns its name or nullptr.
+static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ const char *r, *name;
+ uint32_t offset, left;
+ SectionRef S;
+ struct cfstring64_t cfs;
+ uint64_t cfs_characters;
+
+ r = get_pointer_64(ReferenceValue, offset, left, S, info);
+ if (r == nullptr || left < sizeof(struct cfstring64_t))
+ return nullptr;
+ memcpy(&cfs, r, sizeof(struct cfstring64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(cfs);
+ if (cfs.characters == 0) {
+ uint64_t n_value;
+ const char *symbol_name = get_symbol_64(
+ offset + offsetof(struct cfstring64_t, characters), S, info, n_value);
+ if (symbol_name == nullptr)
+ return nullptr;
+ cfs_characters = n_value;
+ } else
+ cfs_characters = cfs.characters;
+ name = get_pointer_64(cfs_characters, offset, left, S, info);
+
+ return name;
+}
+
+// get_objc2_64bit_selref() is used for disassembly and is passed a the address
+// of a pointer to an Objective-C selector reference when the pointer value is
+// zero as in a .o file and is likely to have a external relocation entry with
+// who's symbol's n_value is the real pointer to the selector name. If that is
+// the case the real pointer to the selector name is returned else 0 is
+// returned
+static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ uint32_t offset, left;
+ SectionRef S;
+
+ const char *r = get_pointer_64(ReferenceValue, offset, left, S, info);
+ if (r == nullptr || left < sizeof(uint64_t))
+ return 0;
+ uint64_t n_value;
+ const char *symbol_name = get_symbol_64(offset, S, info, n_value);
+ if (symbol_name == nullptr)
+ return 0;
+ return n_value;
+}
+
+static const SectionRef get_section(MachOObjectFile *O, const char *segname,
+ const char *sectname) {
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ DataRefImpl Ref = Section.getRawDataRefImpl();
+ StringRef SegName = O->getSectionFinalSegmentName(Ref);
+ if (SegName == segname && SectName == sectname)
+ return Section;
+ }
+ return SectionRef();
+}
+
+static void
+walk_pointer_list_64(const char *listname, const SectionRef S,
+ MachOObjectFile *O, struct DisassembleInfo *info,
+ void (*func)(uint64_t, struct DisassembleInfo *info)) {
+ if (S == SectionRef())
+ return;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+
+ StringRef BytesStr;
+ S.getContents(BytesStr);
+ const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
+
+ for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) {
+ uint32_t left = S.getSize() - i;
+ uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t);
+ uint64_t p = 0;
+ memcpy(&p, Contents + i, size);
+ if (i + sizeof(uint64_t) > S.getSize())
+ outs() << listname << " list pointer extends past end of (" << SegName
+ << "," << SectName << ") section\n";
+ outs() << format("%016" PRIx64, S.getAddress() + i) << " ";
+
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(p);
+
+ uint64_t n_value = 0;
+ const char *name = get_symbol_64(i, S, info, n_value, p);
+ if (name == nullptr)
+ name = get_dyld_bind_info_symbolname(S.getAddress() + i, info);
+
+ if (n_value != 0) {
+ outs() << format("0x%" PRIx64, n_value);
+ if (p != 0)
+ outs() << " + " << format("0x%" PRIx64, p);
+ } else
+ outs() << format("0x%" PRIx64, p);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ p += n_value;
+ if (func)
+ func(p, info);
+ }
+}
+
+static void
+walk_pointer_list_32(const char *listname, const SectionRef S,
+ MachOObjectFile *O, struct DisassembleInfo *info,
+ void (*func)(uint32_t, struct DisassembleInfo *info)) {
+ if (S == SectionRef())
+ return;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+
+ StringRef BytesStr;
+ S.getContents(BytesStr);
+ const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
+
+ for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) {
+ uint32_t left = S.getSize() - i;
+ uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t);
+ uint32_t p = 0;
+ memcpy(&p, Contents + i, size);
+ if (i + sizeof(uint32_t) > S.getSize())
+ outs() << listname << " list pointer extends past end of (" << SegName
+ << "," << SectName << ") section\n";
+ uint32_t Address = S.getAddress() + i;
+ outs() << format("%08" PRIx32, Address) << " ";
+
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(p);
+ outs() << format("0x%" PRIx32, p);
+
+ const char *name = get_symbol_32(i, S, info, p);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ if (func)
+ func(p, info);
+ }
+}
+
+static void print_layout_map(const char *layout_map, uint32_t left) {
+ if (layout_map == nullptr)
+ return;
+ outs() << " layout map: ";
+ do {
+ outs() << format("0x%02" PRIx32, (*layout_map) & 0xff) << " ";
+ left--;
+ layout_map++;
+ } while (*layout_map != '\0' && left != 0);
+ outs() << "\n";
+}
+
+static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) {
+ uint32_t offset, left;
+ SectionRef S;
+ const char *layout_map;
+
+ if (p == 0)
+ return;
+ layout_map = get_pointer_64(p, offset, left, S, info);
+ print_layout_map(layout_map, left);
+}
+
+static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) {
+ uint32_t offset, left;
+ SectionRef S;
+ const char *layout_map;
+
+ if (p == 0)
+ return;
+ layout_map = get_pointer_32(p, offset, left, S, info);
+ print_layout_map(layout_map, left);
+}
+
+static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info,
+ const char *indent) {
+ struct method_list64_t ml;
+ struct method64_t m;
+ const char *r;
+ uint32_t offset, xoffset, left, i;
+ SectionRef S, xS;
+ const char *name, *sym_name;
+ uint64_t n_value;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&ml, '\0', sizeof(struct method_list64_t));
+ if (left < sizeof(struct method_list64_t)) {
+ memcpy(&ml, r, left);
+ outs() << " (method_list_t entends past the end of the section)\n";
+ } else
+ memcpy(&ml, r, sizeof(struct method_list64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(ml);
+ outs() << indent << "\t\t entsize " << ml.entsize << "\n";
+ outs() << indent << "\t\t count " << ml.count << "\n";
+
+ p += sizeof(struct method_list64_t);
+ offset += sizeof(struct method_list64_t);
+ for (i = 0; i < ml.count; i++) {
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&m, '\0', sizeof(struct method64_t));
+ if (left < sizeof(struct method64_t)) {
+ memcpy(&m, r, left);
+ outs() << indent << " (method_t extends past the end of the section)\n";
+ } else
+ memcpy(&m, r, sizeof(struct method64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(m);
+
+ outs() << indent << "\t\t name ";
+ sym_name = get_symbol_64(offset + offsetof(struct method64_t, name), S,
+ info, n_value, m.name);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (m.name != 0)
+ outs() << " + " << format("0x%" PRIx64, m.name);
+ } else
+ outs() << format("0x%" PRIx64, m.name);
+ name = get_pointer_64(m.name + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << indent << "\t\t types ";
+ sym_name = get_symbol_64(offset + offsetof(struct method64_t, types), S,
+ info, n_value, m.types);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (m.types != 0)
+ outs() << " + " << format("0x%" PRIx64, m.types);
+ } else
+ outs() << format("0x%" PRIx64, m.types);
+ name = get_pointer_64(m.types + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << indent << "\t\t imp ";
+ name = get_symbol_64(offset + offsetof(struct method64_t, imp), S, info,
+ n_value, m.imp);
+ if (info->verbose && name == nullptr) {
+ if (n_value != 0) {
+ outs() << format("0x%" PRIx64, n_value) << " ";
+ if (m.imp != 0)
+ outs() << "+ " << format("0x%" PRIx64, m.imp) << " ";
+ } else
+ outs() << format("0x%" PRIx64, m.imp) << " ";
+ }
+ if (name != nullptr)
+ outs() << name;
+ outs() << "\n";
+
+ p += sizeof(struct method64_t);
+ offset += sizeof(struct method64_t);
+ }
+}
+
+static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info,
+ const char *indent) {
+ struct method_list32_t ml;
+ struct method32_t m;
+ const char *r, *name;
+ uint32_t offset, xoffset, left, i;
+ SectionRef S, xS;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&ml, '\0', sizeof(struct method_list32_t));
+ if (left < sizeof(struct method_list32_t)) {
+ memcpy(&ml, r, left);
+ outs() << " (method_list_t entends past the end of the section)\n";
+ } else
+ memcpy(&ml, r, sizeof(struct method_list32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(ml);
+ outs() << indent << "\t\t entsize " << ml.entsize << "\n";
+ outs() << indent << "\t\t count " << ml.count << "\n";
+
+ p += sizeof(struct method_list32_t);
+ offset += sizeof(struct method_list32_t);
+ for (i = 0; i < ml.count; i++) {
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&m, '\0', sizeof(struct method32_t));
+ if (left < sizeof(struct method32_t)) {
+ memcpy(&ml, r, left);
+ outs() << indent << " (method_t entends past the end of the section)\n";
+ } else
+ memcpy(&m, r, sizeof(struct method32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(m);
+
+ outs() << indent << "\t\t name " << format("0x%" PRIx32, m.name);
+ name = get_pointer_32(m.name, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << indent << "\t\t types " << format("0x%" PRIx32, m.types);
+ name = get_pointer_32(m.types, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << indent << "\t\t imp " << format("0x%" PRIx32, m.imp);
+ name = get_symbol_32(offset + offsetof(struct method32_t, imp), S, info,
+ m.imp);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ p += sizeof(struct method32_t);
+ offset += sizeof(struct method32_t);
+ }
+}
+
+static bool print_method_list(uint32_t p, struct DisassembleInfo *info) {
+ uint32_t offset, left, xleft;
+ SectionRef S;
+ struct objc_method_list_t method_list;
+ struct objc_method_t method;
+ const char *r, *methods, *name, *SymbolName;
+ int32_t i;
+
+ r = get_pointer_32(p, offset, left, S, info, true);
+ if (r == nullptr)
+ return true;
+
+ outs() << "\n";
+ if (left > sizeof(struct objc_method_list_t)) {
+ memcpy(&method_list, r, sizeof(struct objc_method_list_t));
+ } else {
+ outs() << "\t\t objc_method_list extends past end of the section\n";
+ memset(&method_list, '\0', sizeof(struct objc_method_list_t));
+ memcpy(&method_list, r, left);
+ }
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(method_list);
+
+ outs() << "\t\t obsolete "
+ << format("0x%08" PRIx32, method_list.obsolete) << "\n";
+ outs() << "\t\t method_count " << method_list.method_count << "\n";
+
+ methods = r + sizeof(struct objc_method_list_t);
+ for (i = 0; i < method_list.method_count; i++) {
+ if ((i + 1) * sizeof(struct objc_method_t) > left) {
+ outs() << "\t\t remaining method's extend past the of the section\n";
+ break;
+ }
+ memcpy(&method, methods + i * sizeof(struct objc_method_t),
+ sizeof(struct objc_method_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(method);
+
+ outs() << "\t\t method_name "
+ << format("0x%08" PRIx32, method.method_name);
+ if (info->verbose) {
+ name = get_pointer_32(method.method_name, offset, xleft, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", xleft, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t method_types "
+ << format("0x%08" PRIx32, method.method_types);
+ if (info->verbose) {
+ name = get_pointer_32(method.method_types, offset, xleft, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", xleft, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t method_imp "
+ << format("0x%08" PRIx32, method.method_imp) << " ";
+ if (info->verbose) {
+ SymbolName = GuessSymbolName(method.method_imp, info->AddrMap);
+ if (SymbolName != nullptr)
+ outs() << SymbolName;
+ }
+ outs() << "\n";
+ }
+ return false;
+}
+
+static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) {
+ struct protocol_list64_t pl;
+ uint64_t q, n_value;
+ struct protocol64_t pc;
+ const char *r;
+ uint32_t offset, xoffset, left, i;
+ SectionRef S, xS;
+ const char *name, *sym_name;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&pl, '\0', sizeof(struct protocol_list64_t));
+ if (left < sizeof(struct protocol_list64_t)) {
+ memcpy(&pl, r, left);
+ outs() << " (protocol_list_t entends past the end of the section)\n";
+ } else
+ memcpy(&pl, r, sizeof(struct protocol_list64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(pl);
+ outs() << " count " << pl.count << "\n";
+
+ p += sizeof(struct protocol_list64_t);
+ offset += sizeof(struct protocol_list64_t);
+ for (i = 0; i < pl.count; i++) {
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ q = 0;
+ if (left < sizeof(uint64_t)) {
+ memcpy(&q, r, left);
+ outs() << " (protocol_t * entends past the end of the section)\n";
+ } else
+ memcpy(&q, r, sizeof(uint64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(q);
+
+ outs() << "\t\t list[" << i << "] ";
+ sym_name = get_symbol_64(offset, S, info, n_value, q);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (q != 0)
+ outs() << " + " << format("0x%" PRIx64, q);
+ } else
+ outs() << format("0x%" PRIx64, q);
+ outs() << " (struct protocol_t *)\n";
+
+ r = get_pointer_64(q + n_value, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&pc, '\0', sizeof(struct protocol64_t));
+ if (left < sizeof(struct protocol64_t)) {
+ memcpy(&pc, r, left);
+ outs() << " (protocol_t entends past the end of the section)\n";
+ } else
+ memcpy(&pc, r, sizeof(struct protocol64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(pc);
+
+ outs() << "\t\t\t isa " << format("0x%" PRIx64, pc.isa) << "\n";
+
+ outs() << "\t\t\t name ";
+ sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name), S,
+ info, n_value, pc.name);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (pc.name != 0)
+ outs() << " + " << format("0x%" PRIx64, pc.name);
+ } else
+ outs() << format("0x%" PRIx64, pc.name);
+ name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\tprotocols " << format("0x%" PRIx64, pc.protocols) << "\n";
+
+ outs() << "\t\t instanceMethods ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods),
+ S, info, n_value, pc.instanceMethods);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (pc.instanceMethods != 0)
+ outs() << " + " << format("0x%" PRIx64, pc.instanceMethods);
+ } else
+ outs() << format("0x%" PRIx64, pc.instanceMethods);
+ outs() << " (struct method_list_t *)\n";
+ if (pc.instanceMethods + n_value != 0)
+ print_method_list64_t(pc.instanceMethods + n_value, info, "\t");
+
+ outs() << "\t\t classMethods ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct protocol64_t, classMethods), S,
+ info, n_value, pc.classMethods);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (pc.classMethods != 0)
+ outs() << " + " << format("0x%" PRIx64, pc.classMethods);
+ } else
+ outs() << format("0x%" PRIx64, pc.classMethods);
+ outs() << " (struct method_list_t *)\n";
+ if (pc.classMethods + n_value != 0)
+ print_method_list64_t(pc.classMethods + n_value, info, "\t");
+
+ outs() << "\t optionalInstanceMethods "
+ << format("0x%" PRIx64, pc.optionalInstanceMethods) << "\n";
+ outs() << "\t optionalClassMethods "
+ << format("0x%" PRIx64, pc.optionalClassMethods) << "\n";
+ outs() << "\t instanceProperties "
+ << format("0x%" PRIx64, pc.instanceProperties) << "\n";
+
+ p += sizeof(uint64_t);
+ offset += sizeof(uint64_t);
+ }
+}
+
+static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) {
+ struct protocol_list32_t pl;
+ uint32_t q;
+ struct protocol32_t pc;
+ const char *r;
+ uint32_t offset, xoffset, left, i;
+ SectionRef S, xS;
+ const char *name;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&pl, '\0', sizeof(struct protocol_list32_t));
+ if (left < sizeof(struct protocol_list32_t)) {
+ memcpy(&pl, r, left);
+ outs() << " (protocol_list_t entends past the end of the section)\n";
+ } else
+ memcpy(&pl, r, sizeof(struct protocol_list32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(pl);
+ outs() << " count " << pl.count << "\n";
+
+ p += sizeof(struct protocol_list32_t);
+ offset += sizeof(struct protocol_list32_t);
+ for (i = 0; i < pl.count; i++) {
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ q = 0;
+ if (left < sizeof(uint32_t)) {
+ memcpy(&q, r, left);
+ outs() << " (protocol_t * entends past the end of the section)\n";
+ } else
+ memcpy(&q, r, sizeof(uint32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(q);
+ outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32, q)
+ << " (struct protocol_t *)\n";
+ r = get_pointer_32(q, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&pc, '\0', sizeof(struct protocol32_t));
+ if (left < sizeof(struct protocol32_t)) {
+ memcpy(&pc, r, left);
+ outs() << " (protocol_t entends past the end of the section)\n";
+ } else
+ memcpy(&pc, r, sizeof(struct protocol32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(pc);
+ outs() << "\t\t\t isa " << format("0x%" PRIx32, pc.isa) << "\n";
+ outs() << "\t\t\t name " << format("0x%" PRIx32, pc.name);
+ name = get_pointer_32(pc.name, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+ outs() << "\t\t\tprotocols " << format("0x%" PRIx32, pc.protocols) << "\n";
+ outs() << "\t\t instanceMethods "
+ << format("0x%" PRIx32, pc.instanceMethods)
+ << " (struct method_list_t *)\n";
+ if (pc.instanceMethods != 0)
+ print_method_list32_t(pc.instanceMethods, info, "\t");
+ outs() << "\t\t classMethods " << format("0x%" PRIx32, pc.classMethods)
+ << " (struct method_list_t *)\n";
+ if (pc.classMethods != 0)
+ print_method_list32_t(pc.classMethods, info, "\t");
+ outs() << "\t optionalInstanceMethods "
+ << format("0x%" PRIx32, pc.optionalInstanceMethods) << "\n";
+ outs() << "\t optionalClassMethods "
+ << format("0x%" PRIx32, pc.optionalClassMethods) << "\n";
+ outs() << "\t instanceProperties "
+ << format("0x%" PRIx32, pc.instanceProperties) << "\n";
+ p += sizeof(uint32_t);
+ offset += sizeof(uint32_t);
+ }
+}
+
+static void print_indent(uint32_t indent) {
+ for (uint32_t i = 0; i < indent;) {
+ if (indent - i >= 8) {
+ outs() << "\t";
+ i += 8;
+ } else {
+ for (uint32_t j = i; j < indent; j++)
+ outs() << " ";
+ return;
+ }
+ }
+}
+
+static bool print_method_description_list(uint32_t p, uint32_t indent,
+ struct DisassembleInfo *info) {
+ uint32_t offset, left, xleft;
+ SectionRef S;
+ struct objc_method_description_list_t mdl;
+ struct objc_method_description_t md;
+ const char *r, *list, *name;
+ int32_t i;
+
+ r = get_pointer_32(p, offset, left, S, info, true);
+ if (r == nullptr)
+ return true;
+
+ outs() << "\n";
+ if (left > sizeof(struct objc_method_description_list_t)) {
+ memcpy(&mdl, r, sizeof(struct objc_method_description_list_t));
+ } else {
+ print_indent(indent);
+ outs() << " objc_method_description_list extends past end of the section\n";
+ memset(&mdl, '\0', sizeof(struct objc_method_description_list_t));
+ memcpy(&mdl, r, left);
+ }
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(mdl);
+
+ print_indent(indent);
+ outs() << " count " << mdl.count << "\n";
+
+ list = r + sizeof(struct objc_method_description_list_t);
+ for (i = 0; i < mdl.count; i++) {
+ if ((i + 1) * sizeof(struct objc_method_description_t) > left) {
+ print_indent(indent);
+ outs() << " remaining list entries extend past the of the section\n";
+ break;
+ }
+ print_indent(indent);
+ outs() << " list[" << i << "]\n";
+ memcpy(&md, list + i * sizeof(struct objc_method_description_t),
+ sizeof(struct objc_method_description_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(md);
+
+ print_indent(indent);
+ outs() << " name " << format("0x%08" PRIx32, md.name);
+ if (info->verbose) {
+ name = get_pointer_32(md.name, offset, xleft, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", xleft, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ print_indent(indent);
+ outs() << " types " << format("0x%08" PRIx32, md.types);
+ if (info->verbose) {
+ name = get_pointer_32(md.types, offset, xleft, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", xleft, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+ }
+ return false;
+}
+
+static bool print_protocol_list(uint32_t p, uint32_t indent,
+ struct DisassembleInfo *info);
+
+static bool print_protocol(uint32_t p, uint32_t indent,
+ struct DisassembleInfo *info) {
+ uint32_t offset, left;
+ SectionRef S;
+ struct objc_protocol_t protocol;
+ const char *r, *name;
+
+ r = get_pointer_32(p, offset, left, S, info, true);
+ if (r == nullptr)
+ return true;
+
+ outs() << "\n";
+ if (left >= sizeof(struct objc_protocol_t)) {
+ memcpy(&protocol, r, sizeof(struct objc_protocol_t));
+ } else {
+ print_indent(indent);
+ outs() << " Protocol extends past end of the section\n";
+ memset(&protocol, '\0', sizeof(struct objc_protocol_t));
+ memcpy(&protocol, r, left);
+ }
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(protocol);
+
+ print_indent(indent);
+ outs() << " isa " << format("0x%08" PRIx32, protocol.isa)
+ << "\n";
+
+ print_indent(indent);
+ outs() << " protocol_name "
+ << format("0x%08" PRIx32, protocol.protocol_name);
+ if (info->verbose) {
+ name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ print_indent(indent);
+ outs() << " protocol_list "
+ << format("0x%08" PRIx32, protocol.protocol_list);
+ if (print_protocol_list(protocol.protocol_list, indent + 4, info))
+ outs() << " (not in an __OBJC section)\n";
+
+ print_indent(indent);
+ outs() << " instance_methods "
+ << format("0x%08" PRIx32, protocol.instance_methods);
+ if (print_method_description_list(protocol.instance_methods, indent, info))
+ outs() << " (not in an __OBJC section)\n";
+
+ print_indent(indent);
+ outs() << " class_methods "
+ << format("0x%08" PRIx32, protocol.class_methods);
+ if (print_method_description_list(protocol.class_methods, indent, info))
+ outs() << " (not in an __OBJC section)\n";
+
+ return false;
+}
+
+static bool print_protocol_list(uint32_t p, uint32_t indent,
+ struct DisassembleInfo *info) {
+ uint32_t offset, left, l;
+ SectionRef S;
+ struct objc_protocol_list_t protocol_list;
+ const char *r, *list;
+ int32_t i;
+
+ r = get_pointer_32(p, offset, left, S, info, true);
+ if (r == nullptr)
+ return true;
+
+ outs() << "\n";
+ if (left > sizeof(struct objc_protocol_list_t)) {
+ memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t));
+ } else {
+ outs() << "\t\t objc_protocol_list_t extends past end of the section\n";
+ memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t));
+ memcpy(&protocol_list, r, left);
+ }
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(protocol_list);
+
+ print_indent(indent);
+ outs() << " next " << format("0x%08" PRIx32, protocol_list.next)
+ << "\n";
+ print_indent(indent);
+ outs() << " count " << protocol_list.count << "\n";
+
+ list = r + sizeof(struct objc_protocol_list_t);
+ for (i = 0; i < protocol_list.count; i++) {
+ if ((i + 1) * sizeof(uint32_t) > left) {
+ outs() << "\t\t remaining list entries extend past the of the section\n";
+ break;
+ }
+ memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(l);
+
+ print_indent(indent);
+ outs() << " list[" << i << "] " << format("0x%08" PRIx32, l);
+ if (print_protocol(l, indent, info))
+ outs() << "(not in an __OBJC section)\n";
+ }
+ return false;
+}
+
+static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) {
+ struct ivar_list64_t il;
+ struct ivar64_t i;
+ const char *r;
+ uint32_t offset, xoffset, left, j;
+ SectionRef S, xS;
+ const char *name, *sym_name, *ivar_offset_p;
+ uint64_t ivar_offset, n_value;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&il, '\0', sizeof(struct ivar_list64_t));
+ if (left < sizeof(struct ivar_list64_t)) {
+ memcpy(&il, r, left);
+ outs() << " (ivar_list_t entends past the end of the section)\n";
+ } else
+ memcpy(&il, r, sizeof(struct ivar_list64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(il);
+ outs() << " entsize " << il.entsize << "\n";
+ outs() << " count " << il.count << "\n";
+
+ p += sizeof(struct ivar_list64_t);
+ offset += sizeof(struct ivar_list64_t);
+ for (j = 0; j < il.count; j++) {
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&i, '\0', sizeof(struct ivar64_t));
+ if (left < sizeof(struct ivar64_t)) {
+ memcpy(&i, r, left);
+ outs() << " (ivar_t entends past the end of the section)\n";
+ } else
+ memcpy(&i, r, sizeof(struct ivar64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(i);
+
+ outs() << "\t\t\t offset ";
+ sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset), S,
+ info, n_value, i.offset);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (i.offset != 0)
+ outs() << " + " << format("0x%" PRIx64, i.offset);
+ } else
+ outs() << format("0x%" PRIx64, i.offset);
+ ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info);
+ if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) {
+ memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(ivar_offset);
+ outs() << " " << ivar_offset << "\n";
+ } else
+ outs() << "\n";
+
+ outs() << "\t\t\t name ";
+ sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name), S, info,
+ n_value, i.name);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (i.name != 0)
+ outs() << " + " << format("0x%" PRIx64, i.name);
+ } else
+ outs() << format("0x%" PRIx64, i.name);
+ name = get_pointer_64(i.name + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\t type ";
+ sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type), S, info,
+ n_value, i.name);
+ name = get_pointer_64(i.type + n_value, xoffset, left, xS, info);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (i.type != 0)
+ outs() << " + " << format("0x%" PRIx64, i.type);
+ } else
+ outs() << format("0x%" PRIx64, i.type);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\talignment " << i.alignment << "\n";
+ outs() << "\t\t\t size " << i.size << "\n";
+
+ p += sizeof(struct ivar64_t);
+ offset += sizeof(struct ivar64_t);
+ }
+}
+
+static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) {
+ struct ivar_list32_t il;
+ struct ivar32_t i;
+ const char *r;
+ uint32_t offset, xoffset, left, j;
+ SectionRef S, xS;
+ const char *name, *ivar_offset_p;
+ uint32_t ivar_offset;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&il, '\0', sizeof(struct ivar_list32_t));
+ if (left < sizeof(struct ivar_list32_t)) {
+ memcpy(&il, r, left);
+ outs() << " (ivar_list_t entends past the end of the section)\n";
+ } else
+ memcpy(&il, r, sizeof(struct ivar_list32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(il);
+ outs() << " entsize " << il.entsize << "\n";
+ outs() << " count " << il.count << "\n";
+
+ p += sizeof(struct ivar_list32_t);
+ offset += sizeof(struct ivar_list32_t);
+ for (j = 0; j < il.count; j++) {
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&i, '\0', sizeof(struct ivar32_t));
+ if (left < sizeof(struct ivar32_t)) {
+ memcpy(&i, r, left);
+ outs() << " (ivar_t entends past the end of the section)\n";
+ } else
+ memcpy(&i, r, sizeof(struct ivar32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(i);
+
+ outs() << "\t\t\t offset " << format("0x%" PRIx32, i.offset);
+ ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info);
+ if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) {
+ memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(ivar_offset);
+ outs() << " " << ivar_offset << "\n";
+ } else
+ outs() << "\n";
+
+ outs() << "\t\t\t name " << format("0x%" PRIx32, i.name);
+ name = get_pointer_32(i.name, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\t type " << format("0x%" PRIx32, i.type);
+ name = get_pointer_32(i.type, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\talignment " << i.alignment << "\n";
+ outs() << "\t\t\t size " << i.size << "\n";
+
+ p += sizeof(struct ivar32_t);
+ offset += sizeof(struct ivar32_t);
+ }
+}
+
+static void print_objc_property_list64(uint64_t p,
+ struct DisassembleInfo *info) {
+ struct objc_property_list64 opl;
+ struct objc_property64 op;
+ const char *r;
+ uint32_t offset, xoffset, left, j;
+ SectionRef S, xS;
+ const char *name, *sym_name;
+ uint64_t n_value;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&opl, '\0', sizeof(struct objc_property_list64));
+ if (left < sizeof(struct objc_property_list64)) {
+ memcpy(&opl, r, left);
+ outs() << " (objc_property_list entends past the end of the section)\n";
+ } else
+ memcpy(&opl, r, sizeof(struct objc_property_list64));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(opl);
+ outs() << " entsize " << opl.entsize << "\n";
+ outs() << " count " << opl.count << "\n";
+
+ p += sizeof(struct objc_property_list64);
+ offset += sizeof(struct objc_property_list64);
+ for (j = 0; j < opl.count; j++) {
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&op, '\0', sizeof(struct objc_property64));
+ if (left < sizeof(struct objc_property64)) {
+ memcpy(&op, r, left);
+ outs() << " (objc_property entends past the end of the section)\n";
+ } else
+ memcpy(&op, r, sizeof(struct objc_property64));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(op);
+
+ outs() << "\t\t\t name ";
+ sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name), S,
+ info, n_value, op.name);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (op.name != 0)
+ outs() << " + " << format("0x%" PRIx64, op.name);
+ } else
+ outs() << format("0x%" PRIx64, op.name);
+ name = get_pointer_64(op.name + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\tattributes ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct objc_property64, attributes), S,
+ info, n_value, op.attributes);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (op.attributes != 0)
+ outs() << " + " << format("0x%" PRIx64, op.attributes);
+ } else
+ outs() << format("0x%" PRIx64, op.attributes);
+ name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ p += sizeof(struct objc_property64);
+ offset += sizeof(struct objc_property64);
+ }
+}
+
+static void print_objc_property_list32(uint32_t p,
+ struct DisassembleInfo *info) {
+ struct objc_property_list32 opl;
+ struct objc_property32 op;
+ const char *r;
+ uint32_t offset, xoffset, left, j;
+ SectionRef S, xS;
+ const char *name;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&opl, '\0', sizeof(struct objc_property_list32));
+ if (left < sizeof(struct objc_property_list32)) {
+ memcpy(&opl, r, left);
+ outs() << " (objc_property_list entends past the end of the section)\n";
+ } else
+ memcpy(&opl, r, sizeof(struct objc_property_list32));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(opl);
+ outs() << " entsize " << opl.entsize << "\n";
+ outs() << " count " << opl.count << "\n";
+
+ p += sizeof(struct objc_property_list32);
+ offset += sizeof(struct objc_property_list32);
+ for (j = 0; j < opl.count; j++) {
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&op, '\0', sizeof(struct objc_property32));
+ if (left < sizeof(struct objc_property32)) {
+ memcpy(&op, r, left);
+ outs() << " (objc_property entends past the end of the section)\n";
+ } else
+ memcpy(&op, r, sizeof(struct objc_property32));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(op);
+
+ outs() << "\t\t\t name " << format("0x%" PRIx32, op.name);
+ name = get_pointer_32(op.name, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << "\t\t\tattributes " << format("0x%" PRIx32, op.attributes);
+ name = get_pointer_32(op.attributes, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ p += sizeof(struct objc_property32);
+ offset += sizeof(struct objc_property32);
+ }
+}
+
+static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info,
+ bool &is_meta_class) {
+ struct class_ro64_t cro;
+ const char *r;
+ uint32_t offset, xoffset, left;
+ SectionRef S, xS;
+ const char *name, *sym_name;
+ uint64_t n_value;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr || left < sizeof(struct class_ro64_t))
+ return false;
+ memset(&cro, '\0', sizeof(struct class_ro64_t));
+ if (left < sizeof(struct class_ro64_t)) {
+ memcpy(&cro, r, left);
+ outs() << " (class_ro_t entends past the end of the section)\n";
+ } else
+ memcpy(&cro, r, sizeof(struct class_ro64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(cro);
+ outs() << " flags " << format("0x%" PRIx32, cro.flags);
+ if (cro.flags & RO_META)
+ outs() << " RO_META";
+ if (cro.flags & RO_ROOT)
+ outs() << " RO_ROOT";
+ if (cro.flags & RO_HAS_CXX_STRUCTORS)
+ outs() << " RO_HAS_CXX_STRUCTORS";
+ outs() << "\n";
+ outs() << " instanceStart " << cro.instanceStart << "\n";
+ outs() << " instanceSize " << cro.instanceSize << "\n";
+ outs() << " reserved " << format("0x%" PRIx32, cro.reserved)
+ << "\n";
+ outs() << " ivarLayout " << format("0x%" PRIx64, cro.ivarLayout)
+ << "\n";
+ print_layout_map64(cro.ivarLayout, info);
+
+ outs() << " name ";
+ sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name), S,
+ info, n_value, cro.name);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (cro.name != 0)
+ outs() << " + " << format("0x%" PRIx64, cro.name);
+ } else
+ outs() << format("0x%" PRIx64, cro.name);
+ name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << " baseMethods ";
+ sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods),
+ S, info, n_value, cro.baseMethods);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (cro.baseMethods != 0)
+ outs() << " + " << format("0x%" PRIx64, cro.baseMethods);
+ } else
+ outs() << format("0x%" PRIx64, cro.baseMethods);
+ outs() << " (struct method_list_t *)\n";
+ if (cro.baseMethods + n_value != 0)
+ print_method_list64_t(cro.baseMethods + n_value, info, "");
+
+ outs() << " baseProtocols ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols), S,
+ info, n_value, cro.baseProtocols);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (cro.baseProtocols != 0)
+ outs() << " + " << format("0x%" PRIx64, cro.baseProtocols);
+ } else
+ outs() << format("0x%" PRIx64, cro.baseProtocols);
+ outs() << "\n";
+ if (cro.baseProtocols + n_value != 0)
+ print_protocol_list64_t(cro.baseProtocols + n_value, info);
+
+ outs() << " ivars ";
+ sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars), S,
+ info, n_value, cro.ivars);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (cro.ivars != 0)
+ outs() << " + " << format("0x%" PRIx64, cro.ivars);
+ } else
+ outs() << format("0x%" PRIx64, cro.ivars);
+ outs() << "\n";
+ if (cro.ivars + n_value != 0)
+ print_ivar_list64_t(cro.ivars + n_value, info);
+
+ outs() << " weakIvarLayout ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout), S,
+ info, n_value, cro.weakIvarLayout);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (cro.weakIvarLayout != 0)
+ outs() << " + " << format("0x%" PRIx64, cro.weakIvarLayout);
+ } else
+ outs() << format("0x%" PRIx64, cro.weakIvarLayout);
+ outs() << "\n";
+ print_layout_map64(cro.weakIvarLayout + n_value, info);
+
+ outs() << " baseProperties ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties), S,
+ info, n_value, cro.baseProperties);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (cro.baseProperties != 0)
+ outs() << " + " << format("0x%" PRIx64, cro.baseProperties);
+ } else
+ outs() << format("0x%" PRIx64, cro.baseProperties);
+ outs() << "\n";
+ if (cro.baseProperties + n_value != 0)
+ print_objc_property_list64(cro.baseProperties + n_value, info);
+
+ is_meta_class = (cro.flags & RO_META) != 0;
+ return true;
+}
+
+static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info,
+ bool &is_meta_class) {
+ struct class_ro32_t cro;
+ const char *r;
+ uint32_t offset, xoffset, left;
+ SectionRef S, xS;
+ const char *name;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return false;
+ memset(&cro, '\0', sizeof(struct class_ro32_t));
+ if (left < sizeof(struct class_ro32_t)) {
+ memcpy(&cro, r, left);
+ outs() << " (class_ro_t entends past the end of the section)\n";
+ } else
+ memcpy(&cro, r, sizeof(struct class_ro32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(cro);
+ outs() << " flags " << format("0x%" PRIx32, cro.flags);
+ if (cro.flags & RO_META)
+ outs() << " RO_META";
+ if (cro.flags & RO_ROOT)
+ outs() << " RO_ROOT";
+ if (cro.flags & RO_HAS_CXX_STRUCTORS)
+ outs() << " RO_HAS_CXX_STRUCTORS";
+ outs() << "\n";
+ outs() << " instanceStart " << cro.instanceStart << "\n";
+ outs() << " instanceSize " << cro.instanceSize << "\n";
+ outs() << " ivarLayout " << format("0x%" PRIx32, cro.ivarLayout)
+ << "\n";
+ print_layout_map32(cro.ivarLayout, info);
+
+ outs() << " name " << format("0x%" PRIx32, cro.name);
+ name = get_pointer_32(cro.name, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << " baseMethods "
+ << format("0x%" PRIx32, cro.baseMethods)
+ << " (struct method_list_t *)\n";
+ if (cro.baseMethods != 0)
+ print_method_list32_t(cro.baseMethods, info, "");
+
+ outs() << " baseProtocols "
+ << format("0x%" PRIx32, cro.baseProtocols) << "\n";
+ if (cro.baseProtocols != 0)
+ print_protocol_list32_t(cro.baseProtocols, info);
+ outs() << " ivars " << format("0x%" PRIx32, cro.ivars)
+ << "\n";
+ if (cro.ivars != 0)
+ print_ivar_list32_t(cro.ivars, info);
+ outs() << " weakIvarLayout "
+ << format("0x%" PRIx32, cro.weakIvarLayout) << "\n";
+ print_layout_map32(cro.weakIvarLayout, info);
+ outs() << " baseProperties "
+ << format("0x%" PRIx32, cro.baseProperties) << "\n";
+ if (cro.baseProperties != 0)
+ print_objc_property_list32(cro.baseProperties, info);
+ is_meta_class = (cro.flags & RO_META) != 0;
+ return true;
+}
+
+static void print_class64_t(uint64_t p, struct DisassembleInfo *info) {
+ struct class64_t c;
+ const char *r;
+ uint32_t offset, left;
+ SectionRef S;
+ const char *name;
+ uint64_t isa_n_value, n_value;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr || left < sizeof(struct class64_t))
+ return;
+ memset(&c, '\0', sizeof(struct class64_t));
+ if (left < sizeof(struct class64_t)) {
+ memcpy(&c, r, left);
+ outs() << " (class_t entends past the end of the section)\n";
+ } else
+ memcpy(&c, r, sizeof(struct class64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(c);
+
+ outs() << " isa " << format("0x%" PRIx64, c.isa);
+ name = get_symbol_64(offset + offsetof(struct class64_t, isa), S, info,
+ isa_n_value, c.isa);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " superclass " << format("0x%" PRIx64, c.superclass);
+ name = get_symbol_64(offset + offsetof(struct class64_t, superclass), S, info,
+ n_value, c.superclass);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " cache " << format("0x%" PRIx64, c.cache);
+ name = get_symbol_64(offset + offsetof(struct class64_t, cache), S, info,
+ n_value, c.cache);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " vtable " << format("0x%" PRIx64, c.vtable);
+ name = get_symbol_64(offset + offsetof(struct class64_t, vtable), S, info,
+ n_value, c.vtable);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ name = get_symbol_64(offset + offsetof(struct class64_t, data), S, info,
+ n_value, c.data);
+ outs() << " data ";
+ if (n_value != 0) {
+ if (info->verbose && name != nullptr)
+ outs() << name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.data != 0)
+ outs() << " + " << format("0x%" PRIx64, c.data);
+ } else
+ outs() << format("0x%" PRIx64, c.data);
+ outs() << " (struct class_ro_t *)";
+
+ // This is a Swift class if some of the low bits of the pointer are set.
+ if ((c.data + n_value) & 0x7)
+ outs() << " Swift class";
+ outs() << "\n";
+ bool is_meta_class;
+ if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class))
+ return;
+
+ if (!is_meta_class &&
+ c.isa + isa_n_value != p &&
+ c.isa + isa_n_value != 0 &&
+ info->depth < 100) {
+ info->depth++;
+ outs() << "Meta Class\n";
+ print_class64_t(c.isa + isa_n_value, info);
+ }
+}
+
+static void print_class32_t(uint32_t p, struct DisassembleInfo *info) {
+ struct class32_t c;
+ const char *r;
+ uint32_t offset, left;
+ SectionRef S;
+ const char *name;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&c, '\0', sizeof(struct class32_t));
+ if (left < sizeof(struct class32_t)) {
+ memcpy(&c, r, left);
+ outs() << " (class_t entends past the end of the section)\n";
+ } else
+ memcpy(&c, r, sizeof(struct class32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(c);
+
+ outs() << " isa " << format("0x%" PRIx32, c.isa);
+ name =
+ get_symbol_32(offset + offsetof(struct class32_t, isa), S, info, c.isa);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " superclass " << format("0x%" PRIx32, c.superclass);
+ name = get_symbol_32(offset + offsetof(struct class32_t, superclass), S, info,
+ c.superclass);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " cache " << format("0x%" PRIx32, c.cache);
+ name = get_symbol_32(offset + offsetof(struct class32_t, cache), S, info,
+ c.cache);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " vtable " << format("0x%" PRIx32, c.vtable);
+ name = get_symbol_32(offset + offsetof(struct class32_t, vtable), S, info,
+ c.vtable);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ name =
+ get_symbol_32(offset + offsetof(struct class32_t, data), S, info, c.data);
+ outs() << " data " << format("0x%" PRIx32, c.data)
+ << " (struct class_ro_t *)";
+
+ // This is a Swift class if some of the low bits of the pointer are set.
+ if (c.data & 0x3)
+ outs() << " Swift class";
+ outs() << "\n";
+ bool is_meta_class;
+ if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class))
+ return;
+
+ if (!is_meta_class) {
+ outs() << "Meta Class\n";
+ print_class32_t(c.isa, info);
+ }
+}
+
+static void print_objc_class_t(struct objc_class_t *objc_class,
+ struct DisassembleInfo *info) {
+ uint32_t offset, left, xleft;
+ const char *name, *p, *ivar_list;
+ SectionRef S;
+ int32_t i;
+ struct objc_ivar_list_t objc_ivar_list;
+ struct objc_ivar_t ivar;
+
+ outs() << "\t\t isa " << format("0x%08" PRIx32, objc_class->isa);
+ if (info->verbose && CLS_GETINFO(objc_class, CLS_META)) {
+ name = get_pointer_32(objc_class->isa, offset, left, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t super_class "
+ << format("0x%08" PRIx32, objc_class->super_class);
+ if (info->verbose) {
+ name = get_pointer_32(objc_class->super_class, offset, left, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t name " << format("0x%08" PRIx32, objc_class->name);
+ if (info->verbose) {
+ name = get_pointer_32(objc_class->name, offset, left, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t version " << format("0x%08" PRIx32, objc_class->version)
+ << "\n";
+
+ outs() << "\t\t info " << format("0x%08" PRIx32, objc_class->info);
+ if (info->verbose) {
+ if (CLS_GETINFO(objc_class, CLS_CLASS))
+ outs() << " CLS_CLASS";
+ else if (CLS_GETINFO(objc_class, CLS_META))
+ outs() << " CLS_META";
+ }
+ outs() << "\n";
+
+ outs() << "\t instance_size "
+ << format("0x%08" PRIx32, objc_class->instance_size) << "\n";
+
+ p = get_pointer_32(objc_class->ivars, offset, left, S, info, true);
+ outs() << "\t\t ivars " << format("0x%08" PRIx32, objc_class->ivars);
+ if (p != nullptr) {
+ if (left > sizeof(struct objc_ivar_list_t)) {
+ outs() << "\n";
+ memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t));
+ } else {
+ outs() << " (entends past the end of the section)\n";
+ memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t));
+ memcpy(&objc_ivar_list, p, left);
+ }
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(objc_ivar_list);
+ outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n";
+ ivar_list = p + sizeof(struct objc_ivar_list_t);
+ for (i = 0; i < objc_ivar_list.ivar_count; i++) {
+ if ((i + 1) * sizeof(struct objc_ivar_t) > left) {
+ outs() << "\t\t remaining ivar's extend past the of the section\n";
+ break;
+ }
+ memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t),
+ sizeof(struct objc_ivar_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(ivar);
+
+ outs() << "\t\t\tivar_name " << format("0x%08" PRIx32, ivar.ivar_name);
+ if (info->verbose) {
+ name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", xleft, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t\tivar_type " << format("0x%08" PRIx32, ivar.ivar_type);
+ if (info->verbose) {
+ name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", xleft, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t ivar_offset "
+ << format("0x%08" PRIx32, ivar.ivar_offset) << "\n";
+ }
+ } else {
+ outs() << " (not in an __OBJC section)\n";
+ }
+
+ outs() << "\t\t methods " << format("0x%08" PRIx32, objc_class->methodLists);
+ if (print_method_list(objc_class->methodLists, info))
+ outs() << " (not in an __OBJC section)\n";
+
+ outs() << "\t\t cache " << format("0x%08" PRIx32, objc_class->cache)
+ << "\n";
+
+ outs() << "\t\tprotocols " << format("0x%08" PRIx32, objc_class->protocols);
+ if (print_protocol_list(objc_class->protocols, 16, info))
+ outs() << " (not in an __OBJC section)\n";
+}
+
+static void print_objc_objc_category_t(struct objc_category_t *objc_category,
+ struct DisassembleInfo *info) {
+ uint32_t offset, left;
+ const char *name;
+ SectionRef S;
+
+ outs() << "\t category name "
+ << format("0x%08" PRIx32, objc_category->category_name);
+ if (info->verbose) {
+ name = get_pointer_32(objc_category->category_name, offset, left, S, info,
+ true);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t\t class name "
+ << format("0x%08" PRIx32, objc_category->class_name);
+ if (info->verbose) {
+ name =
+ get_pointer_32(objc_category->class_name, offset, left, S, info, true);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ else
+ outs() << " (not in an __OBJC section)";
+ }
+ outs() << "\n";
+
+ outs() << "\t instance methods "
+ << format("0x%08" PRIx32, objc_category->instance_methods);
+ if (print_method_list(objc_category->instance_methods, info))
+ outs() << " (not in an __OBJC section)\n";
+
+ outs() << "\t class methods "
+ << format("0x%08" PRIx32, objc_category->class_methods);
+ if (print_method_list(objc_category->class_methods, info))
+ outs() << " (not in an __OBJC section)\n";
+}
+
+static void print_category64_t(uint64_t p, struct DisassembleInfo *info) {
+ struct category64_t c;
+ const char *r;
+ uint32_t offset, xoffset, left;
+ SectionRef S, xS;
+ const char *name, *sym_name;
+ uint64_t n_value;
+
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&c, '\0', sizeof(struct category64_t));
+ if (left < sizeof(struct category64_t)) {
+ memcpy(&c, r, left);
+ outs() << " (category_t entends past the end of the section)\n";
+ } else
+ memcpy(&c, r, sizeof(struct category64_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(c);
+
+ outs() << " name ";
+ sym_name = get_symbol_64(offset + offsetof(struct category64_t, name), S,
+ info, n_value, c.name);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.name != 0)
+ outs() << " + " << format("0x%" PRIx64, c.name);
+ } else
+ outs() << format("0x%" PRIx64, c.name);
+ name = get_pointer_64(c.name + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ outs() << " cls ";
+ sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls), S, info,
+ n_value, c.cls);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.cls != 0)
+ outs() << " + " << format("0x%" PRIx64, c.cls);
+ } else
+ outs() << format("0x%" PRIx64, c.cls);
+ outs() << "\n";
+ if (c.cls + n_value != 0)
+ print_class64_t(c.cls + n_value, info);
+
+ outs() << " instanceMethods ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct category64_t, instanceMethods), S,
+ info, n_value, c.instanceMethods);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.instanceMethods != 0)
+ outs() << " + " << format("0x%" PRIx64, c.instanceMethods);
+ } else
+ outs() << format("0x%" PRIx64, c.instanceMethods);
+ outs() << "\n";
+ if (c.instanceMethods + n_value != 0)
+ print_method_list64_t(c.instanceMethods + n_value, info, "");
+
+ outs() << " classMethods ";
+ sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods),
+ S, info, n_value, c.classMethods);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.classMethods != 0)
+ outs() << " + " << format("0x%" PRIx64, c.classMethods);
+ } else
+ outs() << format("0x%" PRIx64, c.classMethods);
+ outs() << "\n";
+ if (c.classMethods + n_value != 0)
+ print_method_list64_t(c.classMethods + n_value, info, "");
+
+ outs() << " protocols ";
+ sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols), S,
+ info, n_value, c.protocols);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.protocols != 0)
+ outs() << " + " << format("0x%" PRIx64, c.protocols);
+ } else
+ outs() << format("0x%" PRIx64, c.protocols);
+ outs() << "\n";
+ if (c.protocols + n_value != 0)
+ print_protocol_list64_t(c.protocols + n_value, info);
+
+ outs() << "instanceProperties ";
+ sym_name =
+ get_symbol_64(offset + offsetof(struct category64_t, instanceProperties),
+ S, info, n_value, c.instanceProperties);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (c.instanceProperties != 0)
+ outs() << " + " << format("0x%" PRIx64, c.instanceProperties);
+ } else
+ outs() << format("0x%" PRIx64, c.instanceProperties);
+ outs() << "\n";
+ if (c.instanceProperties + n_value != 0)
+ print_objc_property_list64(c.instanceProperties + n_value, info);
+}
+
+static void print_category32_t(uint32_t p, struct DisassembleInfo *info) {
+ struct category32_t c;
+ const char *r;
+ uint32_t offset, left;
+ SectionRef S, xS;
+ const char *name;
+
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&c, '\0', sizeof(struct category32_t));
+ if (left < sizeof(struct category32_t)) {
+ memcpy(&c, r, left);
+ outs() << " (category_t entends past the end of the section)\n";
+ } else
+ memcpy(&c, r, sizeof(struct category32_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(c);
+
+ outs() << " name " << format("0x%" PRIx32, c.name);
+ name = get_symbol_32(offset + offsetof(struct category32_t, name), S, info,
+ c.name);
+ if (name)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " cls " << format("0x%" PRIx32, c.cls) << "\n";
+ if (c.cls != 0)
+ print_class32_t(c.cls, info);
+ outs() << " instanceMethods " << format("0x%" PRIx32, c.instanceMethods)
+ << "\n";
+ if (c.instanceMethods != 0)
+ print_method_list32_t(c.instanceMethods, info, "");
+ outs() << " classMethods " << format("0x%" PRIx32, c.classMethods)
+ << "\n";
+ if (c.classMethods != 0)
+ print_method_list32_t(c.classMethods, info, "");
+ outs() << " protocols " << format("0x%" PRIx32, c.protocols) << "\n";
+ if (c.protocols != 0)
+ print_protocol_list32_t(c.protocols, info);
+ outs() << "instanceProperties " << format("0x%" PRIx32, c.instanceProperties)
+ << "\n";
+ if (c.instanceProperties != 0)
+ print_objc_property_list32(c.instanceProperties, info);
+}
+
+static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) {
+ uint32_t i, left, offset, xoffset;
+ uint64_t p, n_value;
+ struct message_ref64 mr;
+ const char *name, *sym_name;
+ const char *r;
+ SectionRef xS;
+
+ if (S == SectionRef())
+ return;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ offset = 0;
+ for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) {
+ p = S.getAddress() + i;
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&mr, '\0', sizeof(struct message_ref64));
+ if (left < sizeof(struct message_ref64)) {
+ memcpy(&mr, r, left);
+ outs() << " (message_ref entends past the end of the section)\n";
+ } else
+ memcpy(&mr, r, sizeof(struct message_ref64));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(mr);
+
+ outs() << " imp ";
+ name = get_symbol_64(offset + offsetof(struct message_ref64, imp), S, info,
+ n_value, mr.imp);
+ if (n_value != 0) {
+ outs() << format("0x%" PRIx64, n_value) << " ";
+ if (mr.imp != 0)
+ outs() << "+ " << format("0x%" PRIx64, mr.imp) << " ";
+ } else
+ outs() << format("0x%" PRIx64, mr.imp) << " ";
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " sel ";
+ sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel), S,
+ info, n_value, mr.sel);
+ if (n_value != 0) {
+ if (info->verbose && sym_name != nullptr)
+ outs() << sym_name;
+ else
+ outs() << format("0x%" PRIx64, n_value);
+ if (mr.sel != 0)
+ outs() << " + " << format("0x%" PRIx64, mr.sel);
+ } else
+ outs() << format("0x%" PRIx64, mr.sel);
+ name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << format(" %.*s", left, name);
+ outs() << "\n";
+
+ offset += sizeof(struct message_ref64);
+ }
+}
+
+static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) {
+ uint32_t i, left, offset, xoffset, p;
+ struct message_ref32 mr;
+ const char *name, *r;
+ SectionRef xS;
+
+ if (S == SectionRef())
+ return;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ offset = 0;
+ for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) {
+ p = S.getAddress() + i;
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&mr, '\0', sizeof(struct message_ref32));
+ if (left < sizeof(struct message_ref32)) {
+ memcpy(&mr, r, left);
+ outs() << " (message_ref entends past the end of the section)\n";
+ } else
+ memcpy(&mr, r, sizeof(struct message_ref32));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(mr);
+
+ outs() << " imp " << format("0x%" PRIx32, mr.imp);
+ name = get_symbol_32(offset + offsetof(struct message_ref32, imp), S, info,
+ mr.imp);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ outs() << " sel " << format("0x%" PRIx32, mr.sel);
+ name = get_pointer_32(mr.sel, xoffset, left, xS, info);
+ if (name != nullptr)
+ outs() << " " << name;
+ outs() << "\n";
+
+ offset += sizeof(struct message_ref32);
+ }
+}
+
+static void print_image_info64(SectionRef S, struct DisassembleInfo *info) {
+ uint32_t left, offset, swift_version;
+ uint64_t p;
+ struct objc_image_info64 o;
+ const char *r;
+
+ if (S == SectionRef())
+ return;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ p = S.getAddress();
+ r = get_pointer_64(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&o, '\0', sizeof(struct objc_image_info64));
+ if (left < sizeof(struct objc_image_info64)) {
+ memcpy(&o, r, left);
+ outs() << " (objc_image_info entends past the end of the section)\n";
+ } else
+ memcpy(&o, r, sizeof(struct objc_image_info64));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(o);
+ outs() << " version " << o.version << "\n";
+ outs() << " flags " << format("0x%" PRIx32, o.flags);
+ if (o.flags & OBJC_IMAGE_IS_REPLACEMENT)
+ outs() << " OBJC_IMAGE_IS_REPLACEMENT";
+ if (o.flags & OBJC_IMAGE_SUPPORTS_GC)
+ outs() << " OBJC_IMAGE_SUPPORTS_GC";
+ swift_version = (o.flags >> 8) & 0xff;
+ if (swift_version != 0) {
+ if (swift_version == 1)
+ outs() << " Swift 1.0";
+ else if (swift_version == 2)
+ outs() << " Swift 1.1";
+ else
+ outs() << " unknown future Swift version (" << swift_version << ")";
+ }
+ outs() << "\n";
+}
+
+static void print_image_info32(SectionRef S, struct DisassembleInfo *info) {
+ uint32_t left, offset, swift_version, p;
+ struct objc_image_info32 o;
+ const char *r;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ p = S.getAddress();
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&o, '\0', sizeof(struct objc_image_info32));
+ if (left < sizeof(struct objc_image_info32)) {
+ memcpy(&o, r, left);
+ outs() << " (objc_image_info entends past the end of the section)\n";
+ } else
+ memcpy(&o, r, sizeof(struct objc_image_info32));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(o);
+ outs() << " version " << o.version << "\n";
+ outs() << " flags " << format("0x%" PRIx32, o.flags);
+ if (o.flags & OBJC_IMAGE_IS_REPLACEMENT)
+ outs() << " OBJC_IMAGE_IS_REPLACEMENT";
+ if (o.flags & OBJC_IMAGE_SUPPORTS_GC)
+ outs() << " OBJC_IMAGE_SUPPORTS_GC";
+ swift_version = (o.flags >> 8) & 0xff;
+ if (swift_version != 0) {
+ if (swift_version == 1)
+ outs() << " Swift 1.0";
+ else if (swift_version == 2)
+ outs() << " Swift 1.1";
+ else
+ outs() << " unknown future Swift version (" << swift_version << ")";
+ }
+ outs() << "\n";
+}
+
+static void print_image_info(SectionRef S, struct DisassembleInfo *info) {
+ uint32_t left, offset, p;
+ struct imageInfo_t o;
+ const char *r;
+
+ StringRef SectName;
+ S.getName(SectName);
+ DataRefImpl Ref = S.getRawDataRefImpl();
+ StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
+ outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
+ p = S.getAddress();
+ r = get_pointer_32(p, offset, left, S, info);
+ if (r == nullptr)
+ return;
+ memset(&o, '\0', sizeof(struct imageInfo_t));
+ if (left < sizeof(struct imageInfo_t)) {
+ memcpy(&o, r, left);
+ outs() << " (imageInfo entends past the end of the section)\n";
+ } else
+ memcpy(&o, r, sizeof(struct imageInfo_t));
+ if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(o);
+ outs() << " version " << o.version << "\n";
+ outs() << " flags " << format("0x%" PRIx32, o.flags);
+ if (o.flags & 0x1)
+ outs() << " F&C";
+ if (o.flags & 0x2)
+ outs() << " GC";
+ if (o.flags & 0x4)
+ outs() << " GC-only";
+ else
+ outs() << " RR";
+ outs() << "\n";
+}
+
+static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) {
+ SymbolAddressMap AddrMap;
+ if (verbose)
+ CreateSymbolAddressMap(O, &AddrMap);
+
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
+
+ struct DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = verbose;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ info.depth = 0;
+ SectionRef CL = get_section(O, "__OBJC2", "__class_list");
+ if (CL == SectionRef())
+ CL = get_section(O, "__DATA", "__objc_classlist");
+ info.S = CL;
+ walk_pointer_list_64("class", CL, O, &info, print_class64_t);
+
+ SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
+ if (CR == SectionRef())
+ CR = get_section(O, "__DATA", "__objc_classrefs");
+ info.S = CR;
+ walk_pointer_list_64("class refs", CR, O, &info, nullptr);
+
+ SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
+ if (SR == SectionRef())
+ SR = get_section(O, "__DATA", "__objc_superrefs");
+ info.S = SR;
+ walk_pointer_list_64("super refs", SR, O, &info, nullptr);
+
+ SectionRef CA = get_section(O, "__OBJC2", "__category_list");
+ if (CA == SectionRef())
+ CA = get_section(O, "__DATA", "__objc_catlist");
+ info.S = CA;
+ walk_pointer_list_64("category", CA, O, &info, print_category64_t);
+
+ SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
+ if (PL == SectionRef())
+ PL = get_section(O, "__DATA", "__objc_protolist");
+ info.S = PL;
+ walk_pointer_list_64("protocol", PL, O, &info, nullptr);
+
+ SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
+ if (MR == SectionRef())
+ MR = get_section(O, "__DATA", "__objc_msgrefs");
+ info.S = MR;
+ print_message_refs64(MR, &info);
+
+ SectionRef II = get_section(O, "__OBJC2", "__image_info");
+ if (II == SectionRef())
+ II = get_section(O, "__DATA", "__objc_imageinfo");
+ info.S = II;
+ print_image_info64(II, &info);
+
+ if (info.bindtable != nullptr)
+ delete info.bindtable;
+}
+
+static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) {
+ SymbolAddressMap AddrMap;
+ if (verbose)
+ CreateSymbolAddressMap(O, &AddrMap);
+
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
+
+ struct DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = verbose;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ const SectionRef CL = get_section(O, "__OBJC2", "__class_list");
+ if (CL != SectionRef()) {
+ info.S = CL;
+ walk_pointer_list_32("class", CL, O, &info, print_class32_t);
+ } else {
+ const SectionRef CL = get_section(O, "__DATA", "__objc_classlist");
+ info.S = CL;
+ walk_pointer_list_32("class", CL, O, &info, print_class32_t);
+ }
+
+ const SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
+ if (CR != SectionRef()) {
+ info.S = CR;
+ walk_pointer_list_32("class refs", CR, O, &info, nullptr);
+ } else {
+ const SectionRef CR = get_section(O, "__DATA", "__objc_classrefs");
+ info.S = CR;
+ walk_pointer_list_32("class refs", CR, O, &info, nullptr);
+ }
+
+ const SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
+ if (SR != SectionRef()) {
+ info.S = SR;
+ walk_pointer_list_32("super refs", SR, O, &info, nullptr);
+ } else {
+ const SectionRef SR = get_section(O, "__DATA", "__objc_superrefs");
+ info.S = SR;
+ walk_pointer_list_32("super refs", SR, O, &info, nullptr);
+ }
+
+ const SectionRef CA = get_section(O, "__OBJC2", "__category_list");
+ if (CA != SectionRef()) {
+ info.S = CA;
+ walk_pointer_list_32("category", CA, O, &info, print_category32_t);
+ } else {
+ const SectionRef CA = get_section(O, "__DATA", "__objc_catlist");
+ info.S = CA;
+ walk_pointer_list_32("category", CA, O, &info, print_category32_t);
+ }
+
+ const SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
+ if (PL != SectionRef()) {
+ info.S = PL;
+ walk_pointer_list_32("protocol", PL, O, &info, nullptr);
+ } else {
+ const SectionRef PL = get_section(O, "__DATA", "__objc_protolist");
+ info.S = PL;
+ walk_pointer_list_32("protocol", PL, O, &info, nullptr);
+ }
+
+ const SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
+ if (MR != SectionRef()) {
+ info.S = MR;
+ print_message_refs32(MR, &info);
+ } else {
+ const SectionRef MR = get_section(O, "__DATA", "__objc_msgrefs");
+ info.S = MR;
+ print_message_refs32(MR, &info);
+ }
+
+ const SectionRef II = get_section(O, "__OBJC2", "__image_info");
+ if (II != SectionRef()) {
+ info.S = II;
+ print_image_info32(II, &info);
+ } else {
+ const SectionRef II = get_section(O, "__DATA", "__objc_imageinfo");
+ info.S = II;
+ print_image_info32(II, &info);
+ }
+}
+
+static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) {
+ uint32_t i, j, p, offset, xoffset, left, defs_left, def;
+ const char *r, *name, *defs;
+ struct objc_module_t module;
+ SectionRef S, xS;
+ struct objc_symtab_t symtab;
+ struct objc_class_t objc_class;
+ struct objc_category_t objc_category;
+
+ outs() << "Objective-C segment\n";
+ S = get_section(O, "__OBJC", "__module_info");
+ if (S == SectionRef())
+ return false;
+
+ SymbolAddressMap AddrMap;
+ if (verbose)
+ CreateSymbolAddressMap(O, &AddrMap);
+
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
+
+ struct DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = verbose;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) {
+ p = S.getAddress() + i;
+ r = get_pointer_32(p, offset, left, S, &info, true);
+ if (r == nullptr)
+ return true;
+ memset(&module, '\0', sizeof(struct objc_module_t));
+ if (left < sizeof(struct objc_module_t)) {
+ memcpy(&module, r, left);
+ outs() << " (module extends past end of __module_info section)\n";
+ } else
+ memcpy(&module, r, sizeof(struct objc_module_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(module);
+
+ outs() << "Module " << format("0x%" PRIx32, p) << "\n";
+ outs() << " version " << module.version << "\n";
+ outs() << " size " << module.size << "\n";
+ outs() << " name ";
+ name = get_pointer_32(module.name, xoffset, left, xS, &info, true);
+ if (name != nullptr)
+ outs() << format("%.*s", left, name);
+ else
+ outs() << format("0x%08" PRIx32, module.name)
+ << "(not in an __OBJC section)";
+ outs() << "\n";
+
+ r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true);
+ if (module.symtab == 0 || r == nullptr) {
+ outs() << " symtab " << format("0x%08" PRIx32, module.symtab)
+ << " (not in an __OBJC section)\n";
+ continue;
+ }
+ outs() << " symtab " << format("0x%08" PRIx32, module.symtab) << "\n";
+ memset(&symtab, '\0', sizeof(struct objc_symtab_t));
+ defs_left = 0;
+ defs = nullptr;
+ if (left < sizeof(struct objc_symtab_t)) {
+ memcpy(&symtab, r, left);
+ outs() << "\tsymtab extends past end of an __OBJC section)\n";
+ } else {
+ memcpy(&symtab, r, sizeof(struct objc_symtab_t));
+ if (left > sizeof(struct objc_symtab_t)) {
+ defs_left = left - sizeof(struct objc_symtab_t);
+ defs = r + sizeof(struct objc_symtab_t);
+ }
+ }
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(symtab);
+
+ outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n";
+ r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true);
+ outs() << "\trefs " << format("0x%08" PRIx32, symtab.refs);
+ if (r == nullptr)
+ outs() << " (not in an __OBJC section)";
+ outs() << "\n";
+ outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n";
+ outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n";
+ if (symtab.cls_def_cnt > 0)
+ outs() << "\tClass Definitions\n";
+ for (j = 0; j < symtab.cls_def_cnt; j++) {
+ if ((j + 1) * sizeof(uint32_t) > defs_left) {
+ outs() << "\t(remaining class defs entries entends past the end of the "
+ << "section)\n";
+ break;
+ }
+ memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(def);
+
+ r = get_pointer_32(def, xoffset, left, xS, &info, true);
+ outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32, def);
+ if (r != nullptr) {
+ if (left > sizeof(struct objc_class_t)) {
+ outs() << "\n";
+ memcpy(&objc_class, r, sizeof(struct objc_class_t));
+ } else {
+ outs() << " (entends past the end of the section)\n";
+ memset(&objc_class, '\0', sizeof(struct objc_class_t));
+ memcpy(&objc_class, r, left);
+ }
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(objc_class);
+ print_objc_class_t(&objc_class, &info);
+ } else {
+ outs() << "(not in an __OBJC section)\n";
+ }
+
+ if (CLS_GETINFO(&objc_class, CLS_CLASS)) {
+ outs() << "\tMeta Class";
+ r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true);
+ if (r != nullptr) {
+ if (left > sizeof(struct objc_class_t)) {
+ outs() << "\n";
+ memcpy(&objc_class, r, sizeof(struct objc_class_t));
+ } else {
+ outs() << " (entends past the end of the section)\n";
+ memset(&objc_class, '\0', sizeof(struct objc_class_t));
+ memcpy(&objc_class, r, left);
+ }
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(objc_class);
+ print_objc_class_t(&objc_class, &info);
+ } else {
+ outs() << "(not in an __OBJC section)\n";
+ }
+ }
+ }
+ if (symtab.cat_def_cnt > 0)
+ outs() << "\tCategory Definitions\n";
+ for (j = 0; j < symtab.cat_def_cnt; j++) {
+ if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) {
+ outs() << "\t(remaining category defs entries entends past the end of "
+ << "the section)\n";
+ break;
+ }
+ memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t),
+ sizeof(uint32_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ sys::swapByteOrder(def);
+
+ r = get_pointer_32(def, xoffset, left, xS, &info, true);
+ outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] "
+ << format("0x%08" PRIx32, def);
+ if (r != nullptr) {
+ if (left > sizeof(struct objc_category_t)) {
+ outs() << "\n";
+ memcpy(&objc_category, r, sizeof(struct objc_category_t));
+ } else {
+ outs() << " (entends past the end of the section)\n";
+ memset(&objc_category, '\0', sizeof(struct objc_category_t));
+ memcpy(&objc_category, r, left);
+ }
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(objc_category);
+ print_objc_objc_category_t(&objc_category, &info);
+ } else {
+ outs() << "(not in an __OBJC section)\n";
+ }
+ }
+ }
+ const SectionRef II = get_section(O, "__OBJC", "__image_info");
+ if (II != SectionRef())
+ print_image_info(II, &info);
+
+ return true;
+}
+
+static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
+ uint32_t size, uint32_t addr) {
+ SymbolAddressMap AddrMap;
+ CreateSymbolAddressMap(O, &AddrMap);
+
+ std::vector<SectionRef> Sections;
+ for (const SectionRef &Section : O->sections()) {
+ StringRef SectName;
+ Section.getName(SectName);
+ Sections.push_back(Section);
+ }
+
+ struct DisassembleInfo info;
+ // Set up the block of info used by the Symbolizer call backs.
+ info.verbose = true;
+ info.O = O;
+ info.AddrMap = &AddrMap;
+ info.Sections = &Sections;
+ info.class_name = nullptr;
+ info.selector_name = nullptr;
+ info.method = nullptr;
+ info.demangled_name = nullptr;
+ info.bindtable = nullptr;
+ info.adrp_addr = 0;
+ info.adrp_inst = 0;
+
+ const char *p;
+ struct objc_protocol_t protocol;
+ uint32_t left, paddr;
+ for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) {
+ memset(&protocol, '\0', sizeof(struct objc_protocol_t));
+ left = size - (p - sect);
+ if (left < sizeof(struct objc_protocol_t)) {
+ outs() << "Protocol extends past end of __protocol section\n";
+ memcpy(&protocol, p, left);
+ } else
+ memcpy(&protocol, p, sizeof(struct objc_protocol_t));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ swapStruct(protocol);
+ paddr = addr + (p - sect);
+ outs() << "Protocol " << format("0x%" PRIx32, paddr);
+ if (print_protocol(paddr, 0, &info))
+ outs() << "(not in an __OBJC section)\n";
+ }
+}
+
+static void printObjcMetaData(MachOObjectFile *O, bool verbose) {
+ if (O->is64Bit())
+ printObjc2_64bit_MetaData(O, verbose);
+ else {
+ MachO::mach_header H;
+ H = O->getHeader();
+ if (H.cputype == MachO::CPU_TYPE_ARM)
+ printObjc2_32bit_MetaData(O, verbose);
+ else {
+ // This is the 32-bit non-arm cputype case. Which is normally
+ // the first Objective-C ABI. But it may be the case of a
+ // binary for the iOS simulator which is the second Objective-C
+ // ABI. In that case printObjc1_32bit_MetaData() will determine that
+ // and return false.
+ if (!printObjc1_32bit_MetaData(O, verbose))
+ printObjc2_32bit_MetaData(O, verbose);
+ }
+ }
+}
+
+// GuessLiteralPointer returns a string which for the item in the Mach-O file
+// for the address passed in as ReferenceValue for printing as a comment with
+// the instruction and also returns the corresponding type of that item
+// indirectly through ReferenceType.
+//
+// If ReferenceValue is an address of literal cstring then a pointer to the
+// cstring is returned and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr .
+//
+// If ReferenceValue is an address of an Objective-C CFString, Selector ref or
+// Class ref that name is returned and the ReferenceType is set accordingly.
+//
+// Lastly, literals which are Symbol address in a literal pool are looked for
+// and if found the symbol name is returned and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr .
+//
+// If there is no item in the Mach-O file for the address passed in as
+// ReferenceValue nullptr is returned and ReferenceType is unchanged.
+static const char *GuessLiteralPointer(uint64_t ReferenceValue,
+ uint64_t ReferencePC,
+ uint64_t *ReferenceType,
+ struct DisassembleInfo *info) {
+ // First see if there is an external relocation entry at the ReferencePC.
+ if (info->O->getHeader().filetype == MachO::MH_OBJECT) {
+ uint64_t sect_addr = info->S.getAddress();
+ uint64_t sect_offset = ReferencePC - sect_addr;
+ bool reloc_found = false;
+ DataRefImpl Rel;
+ MachO::any_relocation_info RE;
+ bool isExtern = false;
+ SymbolRef Symbol;
+ for (const RelocationRef &Reloc : info->S.relocations()) {
+ uint64_t RelocOffset = Reloc.getOffset();
+ if (RelocOffset == sect_offset) {
+ Rel = Reloc.getRawDataRefImpl();
+ RE = info->O->getRelocation(Rel);
+ if (info->O->isRelocationScattered(RE))
+ continue;
+ isExtern = info->O->getPlainRelocationExternal(RE);
+ if (isExtern) {
+ symbol_iterator RelocSym = Reloc.getSymbol();
+ Symbol = *RelocSym;
+ }
+ reloc_found = true;
+ break;
+ }
+ }
+ // If there is an external relocation entry for a symbol in a section
+ // then used that symbol's value for the value of the reference.
+ if (reloc_found && isExtern) {
+ if (info->O->getAnyRelocationPCRel(RE)) {
+ unsigned Type = info->O->getAnyRelocationType(RE);
+ if (Type == MachO::X86_64_RELOC_SIGNED) {
+ ReferenceValue = Symbol.getValue();
+ }
+ }
+ }
+ }
+
+ // Look for literals such as Objective-C CFStrings refs, Selector refs,
+ // Message refs and Class refs.
+ bool classref, selref, msgref, cfstring;
+ uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref,
+ selref, msgref, cfstring);
+ if (classref && pointer_value == 0) {
+ // Note the ReferenceValue is a pointer into the __objc_classrefs section.
+ // And the pointer_value in that section is typically zero as it will be
+ // set by dyld as part of the "bind information".
+ const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info);
+ if (name != nullptr) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
+ const char *class_name = strrchr(name, '$');
+ if (class_name != nullptr && class_name[1] == '_' &&
+ class_name[2] != '\0') {
+ info->class_name = class_name + 2;
+ return name;
+ }
+ }
+ }
+
+ if (classref) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
+ const char *name =
+ get_objc2_64bit_class_name(pointer_value, ReferenceValue, info);
+ if (name != nullptr)
+ info->class_name = name;
+ else
+ name = "bad class ref";
+ return name;
+ }
+
+ if (cfstring) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref;
+ const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info);
+ return name;
+ }
+
+ if (selref && pointer_value == 0)
+ pointer_value = get_objc2_64bit_selref(ReferenceValue, info);
+
+ if (pointer_value != 0)
+ ReferenceValue = pointer_value;
+
+ const char *name = GuessCstringPointer(ReferenceValue, info);
+ if (name) {
+ if (pointer_value != 0 && selref) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref;
+ info->selector_name = name;
+ } else if (pointer_value != 0 && msgref) {
+ info->class_name = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref;
+ info->selector_name = name;
+ } else
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr;
+ return name;
+ }
+
+ // Lastly look for an indirect symbol with this ReferenceValue which is in
+ // a literal pool. If found return that symbol name.
+ name = GuessIndirectSymbol(ReferenceValue, info);
+ if (name) {
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr;
+ return name;
+ }
+
+ return nullptr;
+}
+
+// SymbolizerSymbolLookUp is the symbol lookup function passed when creating
+// the Symbolizer. It looks up the ReferenceValue using the info passed via the
+// pointer to the struct DisassembleInfo that was passed when MCSymbolizer
+// is created and returns the symbol name that matches the ReferenceValue or
+// nullptr if none. The ReferenceType is passed in for the IN type of
+// reference the instruction is making from the values in defined in the header
+// "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific
+// Out type and the ReferenceName will also be set which is added as a comment
+// to the disassembled instruction.
+//
+#if HAVE_CXXABI_H
+// If the symbol name is a C++ mangled name then the demangled name is
+// returned through ReferenceName and ReferenceType is set to
+// LLVMDisassembler_ReferenceType_DeMangled_Name .
+#endif
+//
+// When this is called to get a symbol name for a branch target then the
+// ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then
+// SymbolValue will be looked for in the indirect symbol table to determine if
+// it is an address for a symbol stub. If so then the symbol name for that
+// stub is returned indirectly through ReferenceName and then ReferenceType is
+// set to LLVMDisassembler_ReferenceType_Out_SymbolStub.
+//
+// When this is called with an value loaded via a PC relative load then
+// ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the
+// SymbolValue is checked to be an address of literal pointer, symbol pointer,
+// or an Objective-C meta data reference. If so the output ReferenceType is
+// set to correspond to that as well as setting the ReferenceName.
+static const char *SymbolizerSymbolLookUp(void *DisInfo,
+ uint64_t ReferenceValue,
+ uint64_t *ReferenceType,
+ uint64_t ReferencePC,
+ const char **ReferenceName) {
+ struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo;
+ // If no verbose symbolic information is wanted then just return nullptr.
+ if (!info->verbose) {
+ *ReferenceName = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ return nullptr;
+ }
+
+ const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
+
+ if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch) {
+ *ReferenceName = GuessIndirectSymbol(ReferenceValue, info);
+ if (*ReferenceName != nullptr) {
+ method_reference(info, ReferenceType, ReferenceName);
+ if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message)
+ *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub;
+ } else
+#if HAVE_CXXABI_H
+ if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
+ if (info->demangled_name != nullptr)
+ free(info->demangled_name);
+ int status;
+ info->demangled_name =
+ abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
+ if (info->demangled_name != nullptr) {
+ *ReferenceName = info->demangled_name;
+ *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
+ } else
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ } else
+#endif
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load) {
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName)
+ method_reference(info, ReferenceType, ReferenceName);
+ else
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ // If this is arm64 and the reference is an adrp instruction save the
+ // instruction, passed in ReferenceValue and the address of the instruction
+ // for use later if we see and add immediate instruction.
+ } else if (info->O->getArch() == Triple::aarch64 &&
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP) {
+ info->adrp_inst = ReferenceValue;
+ info->adrp_addr = ReferencePC;
+ SymbolName = nullptr;
+ *ReferenceName = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ // If this is arm64 and reference is an add immediate instruction and we
+ // have
+ // seen an adrp instruction just before it and the adrp's Xd register
+ // matches
+ // this add's Xn register reconstruct the value being referenced and look to
+ // see if it is a literal pointer. Note the add immediate instruction is
+ // passed in ReferenceValue.
+ } else if (info->O->getArch() == Triple::aarch64 &&
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri &&
+ ReferencePC - 4 == info->adrp_addr &&
+ (info->adrp_inst & 0x9f000000) == 0x90000000 &&
+ (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
+ uint32_t addxri_inst;
+ uint64_t adrp_imm, addxri_imm;
+
+ adrp_imm =
+ ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
+ if (info->adrp_inst & 0x0200000)
+ adrp_imm |= 0xfffffffffc000000LL;
+
+ addxri_inst = ReferenceValue;
+ addxri_imm = (addxri_inst >> 10) & 0xfff;
+ if (((addxri_inst >> 22) & 0x3) == 1)
+ addxri_imm <<= 12;
+
+ ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
+ (adrp_imm << 12) + addxri_imm;
+
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName == nullptr)
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ // If this is arm64 and the reference is a load register instruction and we
+ // have seen an adrp instruction just before it and the adrp's Xd register
+ // matches this add's Xn register reconstruct the value being referenced and
+ // look to see if it is a literal pointer. Note the load register
+ // instruction is passed in ReferenceValue.
+ } else if (info->O->getArch() == Triple::aarch64 &&
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui &&
+ ReferencePC - 4 == info->adrp_addr &&
+ (info->adrp_inst & 0x9f000000) == 0x90000000 &&
+ (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
+ uint32_t ldrxui_inst;
+ uint64_t adrp_imm, ldrxui_imm;
+
+ adrp_imm =
+ ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
+ if (info->adrp_inst & 0x0200000)
+ adrp_imm |= 0xfffffffffc000000LL;
+
+ ldrxui_inst = ReferenceValue;
+ ldrxui_imm = (ldrxui_inst >> 10) & 0xfff;
+
+ ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
+ (adrp_imm << 12) + (ldrxui_imm << 3);
+
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName == nullptr)
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ }
+ // If this arm64 and is an load register (PC-relative) instruction the
+ // ReferenceValue is the PC plus the immediate value.
+ else if (info->O->getArch() == Triple::aarch64 &&
+ (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl ||
+ *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR)) {
+ *ReferenceName =
+ GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
+ if (*ReferenceName == nullptr)
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ }
+#if HAVE_CXXABI_H
+ else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
+ if (info->demangled_name != nullptr)
+ free(info->demangled_name);
+ int status;
+ info->demangled_name =
+ abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
+ if (info->demangled_name != nullptr) {
+ *ReferenceName = info->demangled_name;
+ *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
+ }
+ }
+#endif
+ else {
+ *ReferenceName = nullptr;
+ *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
+ }
+
+ return SymbolName;
+}
+
+/// \brief Emits the comments that are stored in the CommentStream.
+/// Each comment in the CommentStream must end with a newline.
+static void emitComments(raw_svector_ostream &CommentStream,
+ SmallString<128> &CommentsToEmit,
+ formatted_raw_ostream &FormattedOS,
+ const MCAsmInfo &MAI) {
+ // Flush the stream before taking its content.
+ StringRef Comments = CommentsToEmit.str();
+ // Get the default information for printing a comment.
+ const char *CommentBegin = MAI.getCommentString();
+ unsigned CommentColumn = MAI.getCommentColumn();
+ bool IsFirst = true;
+ while (!Comments.empty()) {
+ if (!IsFirst)
+ FormattedOS << '\n';
+ // Emit a line of comments.
+ FormattedOS.PadToColumn(CommentColumn);
+ size_t Position = Comments.find('\n');
+ FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position);
+ // Move after the newline character.
+ Comments = Comments.substr(Position + 1);
+ IsFirst = false;
+ }
+ FormattedOS.flush();
+
+ // Tell the comment stream that the vector changed underneath it.
+ CommentsToEmit.clear();
+}
+
+static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF,
+ StringRef DisSegName, StringRef DisSectName) {
+ const char *McpuDefault = nullptr;
+ const Target *ThumbTarget = nullptr;
+ const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget);
+ if (!TheTarget) {
+ // GetTarget prints out stuff.
+ return;
+ }
+ if (MCPU.empty() && McpuDefault)
+ MCPU = McpuDefault;
+
+ std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
+ std::unique_ptr<const MCInstrInfo> ThumbInstrInfo;
+ if (ThumbTarget)
+ ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo());
+
+ // 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.
+ 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<MCDisassembler> DisAsm(
+ TheTarget->createMCDisassembler(*STI, Ctx));
+ std::unique_ptr<MCSymbolizer> Symbolizer;
+ struct DisassembleInfo SymbolizerInfo;
+ std::unique_ptr<MCRelocationInfo> RelInfo(
+ TheTarget->createMCRelocationInfo(TripleName, Ctx));
+ if (RelInfo) {
+ Symbolizer.reset(TheTarget->createMCSymbolizer(
+ TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
+ &SymbolizerInfo, &Ctx, std::move(RelInfo)));
+ DisAsm->setSymbolizer(std::move(Symbolizer));
+ }
+ int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
+ std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
+ Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI));
+ // Set the display preference for hex vs. decimal immediates.
+ IP->setPrintImmHex(PrintImmHex);
+ // Comment stream and backing vector.
+ SmallString<128> CommentsToEmit;
+ raw_svector_ostream CommentStream(CommentsToEmit);
+ // FIXME: Setting the CommentStream in the InstPrinter is problematic in that
+ // if it is done then arm64 comments for string literals don't get printed
+ // and some constant get printed instead and not setting it causes intel
+ // (32-bit and 64-bit) comments printed with different spacing before the
+ // comment causing different diffs with the 'C' disassembler library API.
+ // IP->setCommentStream(CommentStream);
+
+ if (!AsmInfo || !STI || !DisAsm || !IP) {
+ errs() << "error: couldn't initialize disassembler for target "
+ << TripleName << '\n';
+ return;
+ }
+
+ // 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<MCDisassembler> ThumbDisAsm;
+ std::unique_ptr<MCInstPrinter> ThumbIP;
+ std::unique_ptr<MCContext> ThumbCtx;
+ std::unique_ptr<MCSymbolizer> ThumbSymbolizer;
+ struct DisassembleInfo ThumbSymbolizerInfo;
+ std::unique_ptr<MCRelocationInfo> ThumbRelInfo;
+ 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));
+ MCContext *PtrThumbCtx = ThumbCtx.get();
+ ThumbRelInfo.reset(
+ ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx));
+ if (ThumbRelInfo) {
+ ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer(
+ ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
+ &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo)));
+ ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer));
+ }
+ int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect();
+ ThumbIP.reset(ThumbTarget->createMCInstPrinter(
+ Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo,
+ *ThumbInstrInfo, *ThumbMRI));
+ // Set the display preference for hex vs. decimal immediates.
+ ThumbIP->setPrintImmHex(PrintImmHex);
+ }
+
+ if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) {
+ errs() << "error: couldn't initialize disassembler for target "
+ << ThumbTripleName << '\n';
+ return;
+ }
+
+ 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(MachOOF, Sections, Symbols, FoundFns,
+ BaseSegmentAddress);
+
+ // 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)
+ BaseAddress = Sections[0].getAddress();
+ 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
+
+ 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()) {
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr =
+ MemoryBuffer::getFileOrSTDIN(DSYMFile);
+ if (std::error_code EC = BufOrErr.getError()) {
+ errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n';
+ return;
+ }
+ DbgObj =
+ ObjectFile::createMachOObjectFile(BufOrErr.get()->getMemBufferRef())
+ .get()
+ .release();
+ }
+
+ // Setup the DIContext
+ diContext.reset(new DWARFContextInMemory(*DbgObj));
+ }
+
+ if (FilterSections.size() == 0)
+ outs() << "(" << DisSegName << "," << DisSectName << ") section\n";
+
+ for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) {
+ StringRef SectName;
+ if (Sections[SectIdx].getName(SectName) || SectName != DisSectName)
+ continue;
+
+ DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
+
+ StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
+ if (SegmentName != DisSegName)
+ continue;
+
+ StringRef BytesStr;
+ Sections[SectIdx].getContents(BytesStr);
+ ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
+ BytesStr.size());
+ uint64_t SectAddress = Sections[SectIdx].getAddress();
+
+ bool symbolTableWorked = false;
+
+ // Create a map of symbol addresses to symbol names for use by
+ // the SymbolizerSymbolLookUp() routine.
+ SymbolAddressMap AddrMap;
+ bool DisSymNameFound = false;
+ for (const SymbolRef &Symbol : MachOOF->symbols()) {
+ SymbolRef::Type ST = Symbol.getType();
+ if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
+ ST == SymbolRef::ST_Other) {
+ uint64_t Address = Symbol.getValue();
+ ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ report_fatal_error(EC.message());
+ StringRef SymName = *SymNameOrErr;
+ AddrMap[Address] = SymName;
+ if (!DisSymName.empty() && DisSymName == SymName)
+ DisSymNameFound = true;
+ }
+ }
+ if (!DisSymName.empty() && !DisSymNameFound) {
+ outs() << "Can't find -dis-symname: " << DisSymName << "\n";
+ return;
+ }
+ // Set up the block of info used by the Symbolizer call backs.
+ SymbolizerInfo.verbose = !NoSymbolicOperands;
+ SymbolizerInfo.O = MachOOF;
+ SymbolizerInfo.S = Sections[SectIdx];
+ SymbolizerInfo.AddrMap = &AddrMap;
+ SymbolizerInfo.Sections = &Sections;
+ SymbolizerInfo.class_name = nullptr;
+ SymbolizerInfo.selector_name = nullptr;
+ SymbolizerInfo.method = nullptr;
+ SymbolizerInfo.demangled_name = nullptr;
+ SymbolizerInfo.bindtable = nullptr;
+ SymbolizerInfo.adrp_addr = 0;
+ SymbolizerInfo.adrp_inst = 0;
+ // Same for the ThumbSymbolizer
+ ThumbSymbolizerInfo.verbose = !NoSymbolicOperands;
+ ThumbSymbolizerInfo.O = MachOOF;
+ ThumbSymbolizerInfo.S = Sections[SectIdx];
+ ThumbSymbolizerInfo.AddrMap = &AddrMap;
+ ThumbSymbolizerInfo.Sections = &Sections;
+ ThumbSymbolizerInfo.class_name = nullptr;
+ ThumbSymbolizerInfo.selector_name = nullptr;
+ ThumbSymbolizerInfo.method = nullptr;
+ ThumbSymbolizerInfo.demangled_name = nullptr;
+ ThumbSymbolizerInfo.bindtable = nullptr;
+ ThumbSymbolizerInfo.adrp_addr = 0;
+ ThumbSymbolizerInfo.adrp_inst = 0;
+
+ // Disassemble symbol by symbol.
+ for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) {
+ ErrorOr<StringRef> SymNameOrErr = Symbols[SymIdx].getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ report_fatal_error(EC.message());
+ StringRef SymName = *SymNameOrErr;
+
+ SymbolRef::Type ST = Symbols[SymIdx].getType();
+ if (ST != SymbolRef::ST_Function && ST != SymbolRef::ST_Data)
+ continue;
+
+ // Make sure the symbol is defined in this section.
+ bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]);
+ if (!containsSym)
+ continue;
+
+ // If we are only disassembling one symbol see if this is that symbol.
+ if (!DisSymName.empty() && DisSymName != SymName)
+ continue;
+
+ // Start at the address of the symbol relative to the section's address.
+ uint64_t Start = Symbols[SymIdx].getValue();
+ uint64_t SectionAddress = Sections[SectIdx].getAddress();
+ Start -= SectionAddress;
+
+ // Stop disassembling either at the beginning of the next symbol or at
+ // the end of the section.
+ bool containsNextSym = false;
+ uint64_t NextSym = 0;
+ uint64_t NextSymIdx = SymIdx + 1;
+ while (Symbols.size() > NextSymIdx) {
+ SymbolRef::Type NextSymType = Symbols[NextSymIdx].getType();
+ if (NextSymType == SymbolRef::ST_Function) {
+ containsNextSym =
+ Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]);
+ NextSym = Symbols[NextSymIdx].getValue();
+ NextSym -= SectionAddress;
+ break;
+ }
+ ++NextSymIdx;
+ }
+
+ uint64_t SectSize = Sections[SectIdx].getSize();
+ uint64_t End = containsNextSym ? NextSym : SectSize;
+ uint64_t Size;
+
+ symbolTableWorked = true;
+
+ 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;
+
+ uint64_t PC = SectAddress + Index;
+ if (!NoLeadingAddr) {
+ if (FullLeadingAddr) {
+ if (MachOOF->is64Bit())
+ outs() << format("%016" PRIx64, PC);
+ else
+ outs() << format("%08" PRIx64, PC);
+ } else {
+ outs() << format("%8" PRIx64 ":", PC);
+ }
+ }
+ if (!NoShowRawInsn)
+ outs() << "\t";
+
+ // 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(PC, 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);
+ uint16_t Kind;
+ DTI->second.getKind(Kind);
+ Size = DumpDataInCode(Bytes.data() + Index, Length, Kind);
+ if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) &&
+ (PC == (DTI->first + Length - 1)) && (Length & 1))
+ Size++;
+ continue;
+ }
+
+ SmallVector<char, 64> AnnotationsBytes;
+ raw_svector_ostream Annotations(AnnotationsBytes);
+
+ bool gotInst;
+ if (isThumb)
+ gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
+ PC, DebugOut, Annotations);
+ else
+ gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC,
+ DebugOut, Annotations);
+ if (gotInst) {
+ if (!NoShowRawInsn) {
+ dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs());
+ }
+ formatted_raw_ostream FormattedOS(outs());
+ StringRef AnnotationsStr = Annotations.str();
+ if (isThumb)
+ ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI);
+ else
+ IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI);
+ emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo);
+
+ // Print debug info.
+ if (diContext) {
+ DILineInfo dli = diContext->getLineInfoForAddress(PC);
+ // 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 {
+ unsigned int Arch = MachOOF->getArch();
+ if (Arch == Triple::x86_64 || Arch == Triple::x86) {
+ outs() << format("\t.byte 0x%02x #bad opcode\n",
+ *(Bytes.data() + Index) & 0xff);
+ Size = 1; // skip exactly one illegible byte and move on.
+ } else if (Arch == Triple::aarch64) {
+ uint32_t opcode = (*(Bytes.data() + Index) & 0xff) |
+ (*(Bytes.data() + Index + 1) & 0xff) << 8 |
+ (*(Bytes.data() + Index + 2) & 0xff) << 16 |
+ (*(Bytes.data() + Index + 3) & 0xff) << 24;
+ outs() << format("\t.long\t0x%08x\n", opcode);
+ Size = 4;
+ } 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();
+ uint64_t SectSize = Sections[SectIdx].getSize();
+ uint64_t InstSize;
+ for (uint64_t Index = 0; Index < SectSize; Index += InstSize) {
+ MCInst Inst;
+
+ uint64_t PC = SectAddress + Index;
+ if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC,
+ DebugOut, nulls())) {
+ if (!NoLeadingAddr) {
+ if (FullLeadingAddr) {
+ if (MachOOF->is64Bit())
+ outs() << format("%016" PRIx64, PC);
+ else
+ outs() << format("%08" PRIx64, PC);
+ } else {
+ outs() << format("%8" PRIx64 ":", PC);
+ }
+ }
+ if (!NoShowRawInsn) {
+ outs() << "\t";
+ dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs());
+ }
+ IP->printInst(&Inst, outs(), "", *STI);
+ outs() << "\n";
+ } else {
+ unsigned int Arch = MachOOF->getArch();
+ if (Arch == Triple::x86_64 || Arch == Triple::x86) {
+ outs() << format("\t.byte 0x%02x #bad opcode\n",
+ *(Bytes.data() + Index) & 0xff);
+ InstSize = 1; // skip exactly one illegible byte and move on.
+ } else {
+ errs() << "llvm-objdump: warning: invalid instruction encoding\n";
+ if (InstSize == 0)
+ InstSize = 1; // skip illegible bytes
+ }
+ }
+ }
+ }
+ // The TripleName's need to be reset if we are called again for a different
+ // archtecture.
+ TripleName = "";
+ ThumbTripleName = "";
+
+ if (SymbolizerInfo.method != nullptr)
+ free(SymbolizerInfo.method);
+ if (SymbolizerInfo.demangled_name != nullptr)
+ free(SymbolizerInfo.demangled_name);
+ if (SymbolizerInfo.bindtable != nullptr)
+ delete SymbolizerInfo.bindtable;
+ if (ThumbSymbolizerInfo.method != nullptr)
+ free(ThumbSymbolizerInfo.method);
+ if (ThumbSymbolizerInfo.demangled_name != nullptr)
+ free(ThumbSymbolizerInfo.demangled_name);
+ if (ThumbSymbolizerInfo.bindtable != nullptr)
+ delete ThumbSymbolizerInfo.bindtable;
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// __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()) {
+ ErrorOr<StringRef> NameOrErr = Reloc.getSymbol()->getName();
+ if (std::error_code EC = NameOrErr.getError())
+ report_fatal_error(EC.message());
+ Name = *NameOrErr;
+ Addend = Addr;
+ return;
+ }
+
+ auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl());
+ SectionRef RelocSection = Obj->getAnyRelocationSection(RE);
+
+ uint64_t SectionAddr = RelocSection.getAddress();
+
+ 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 = *Sym->second.getSection();
+ if (RelocSection == *SymSection) {
+ // There's a valid symbol in the same section before this reference.
+ ErrorOr<StringRef> NameOrErr = Sym->second.getName();
+ if (std::error_code EC = NameOrErr.getError())
+ report_fatal_error(EC.message());
+ Name = *NameOrErr;
+ 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.getObject())
+ 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();
+
+ 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.getObject()) {
+ 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.getObject()) {
+ 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");
+ }
+}
+
+static unsigned getSizeForEncoding(bool is64Bit,
+ unsigned symbolEncoding) {
+ unsigned format = symbolEncoding & 0x0f;
+ switch (format) {
+ default: llvm_unreachable("Unknown Encoding");
+ case dwarf::DW_EH_PE_absptr:
+ case dwarf::DW_EH_PE_signed:
+ return is64Bit ? 8 : 4;
+ case dwarf::DW_EH_PE_udata2:
+ case dwarf::DW_EH_PE_sdata2:
+ return 2;
+ case dwarf::DW_EH_PE_udata4:
+ case dwarf::DW_EH_PE_sdata4:
+ return 4;
+ case dwarf::DW_EH_PE_udata8:
+ case dwarf::DW_EH_PE_sdata8:
+ return 8;
+ }
+}
+
+static uint64_t readPointer(const char *&Pos, bool is64Bit, unsigned Encoding) {
+ switch (getSizeForEncoding(is64Bit, Encoding)) {
+ case 2:
+ return readNext<uint16_t>(Pos);
+ break;
+ case 4:
+ return readNext<uint32_t>(Pos);
+ break;
+ case 8:
+ return readNext<uint64_t>(Pos);
+ break;
+ default:
+ llvm_unreachable("Illegal data size");
+ }
+}
+
+static void printMachOEHFrameSection(const MachOObjectFile *Obj,
+ std::map<uint64_t, SymbolRef> &Symbols,
+ const SectionRef &EHFrame) {
+ if (!Obj->isLittleEndian()) {
+ outs() << "warning: cannot handle big endian __eh_frame section\n";
+ return;
+ }
+
+ bool is64Bit = Obj->is64Bit();
+
+ outs() << "Contents of __eh_frame section:\n";
+
+ StringRef Contents;
+ EHFrame.getContents(Contents);
+
+ /// A few fields of the CIE are used when decoding the FDE's. This struct
+ /// will cache those fields we need so that we don't have to decode it
+ /// repeatedly for each FDE that references it.
+ struct DecodedCIE {
+ Optional<uint32_t> FDEPointerEncoding;
+ Optional<uint32_t> LSDAPointerEncoding;
+ bool hasAugmentationLength;
+ };
+
+ // Map from the start offset of the CIE to the cached data for that CIE.
+ DenseMap<uint64_t, DecodedCIE> CachedCIEs;
+
+ for (const char *Pos = Contents.data(), *End = Contents.end(); Pos != End; ) {
+
+ const char *EntryStartPos = Pos;
+
+ uint64_t Length = readNext<uint32_t>(Pos);
+ if (Length == 0xffffffff)
+ Length = readNext<uint64_t>(Pos);
+
+ // Save the Pos so that we can check the length we encoded against what we
+ // end up decoding.
+ const char *PosAfterLength = Pos;
+ const char *EntryEndPos = PosAfterLength + Length;
+
+ assert(EntryEndPos <= End &&
+ "__eh_frame entry length exceeds section size");
+
+ uint32_t ID = readNext<uint32_t>(Pos);
+ if (ID == 0) {
+ // This is a CIE.
+
+ uint32_t Version = readNext<uint8_t>(Pos);
+
+ // Parse a null terminated augmentation string
+ SmallString<8> AugmentationString;
+ for (uint8_t Char = readNext<uint8_t>(Pos); Char;
+ Char = readNext<uint8_t>(Pos))
+ AugmentationString.push_back(Char);
+
+ // Optionally parse the EH data if the augmentation string says it's there.
+ Optional<uint64_t> EHData;
+ if (StringRef(AugmentationString).count("eh"))
+ EHData = is64Bit ? readNext<uint64_t>(Pos) : readNext<uint32_t>(Pos);
+
+ unsigned ULEBByteCount;
+ uint64_t CodeAlignmentFactor = decodeULEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ int64_t DataAlignmentFactor = decodeSLEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ uint32_t ReturnAddressRegister = readNext<uint8_t>(Pos);
+
+ Optional<uint64_t> AugmentationLength;
+ Optional<uint32_t> LSDAPointerEncoding;
+ Optional<uint32_t> PersonalityEncoding;
+ Optional<uint64_t> Personality;
+ Optional<uint32_t> FDEPointerEncoding;
+ if (!AugmentationString.empty() && AugmentationString.front() == 'z') {
+ AugmentationLength = decodeULEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ // Walk the augmentation string to get all the augmentation data.
+ for (unsigned i = 1, e = AugmentationString.size(); i != e; ++i) {
+ char Char = AugmentationString[i];
+ switch (Char) {
+ case 'e':
+ assert((i + 1) != e && AugmentationString[i + 1] == 'h' &&
+ "Expected 'eh' in augmentation string");
+ break;
+ case 'L':
+ assert(!LSDAPointerEncoding && "Duplicate LSDA encoding");
+ LSDAPointerEncoding = readNext<uint8_t>(Pos);
+ break;
+ case 'P': {
+ assert(!Personality && "Duplicate personality");
+ PersonalityEncoding = readNext<uint8_t>(Pos);
+ Personality = readPointer(Pos, is64Bit, *PersonalityEncoding);
+ break;
+ }
+ case 'R':
+ assert(!FDEPointerEncoding && "Duplicate FDE encoding");
+ FDEPointerEncoding = readNext<uint8_t>(Pos);
+ break;
+ case 'z':
+ llvm_unreachable("'z' must be first in the augmentation string");
+ }
+ }
+ }
+
+ outs() << "CIE:\n";
+ outs() << " Length: " << Length << "\n";
+ outs() << " CIE ID: " << ID << "\n";
+ outs() << " Version: " << Version << "\n";
+ outs() << " Augmentation String: " << AugmentationString << "\n";
+ if (EHData)
+ outs() << " EHData: " << *EHData << "\n";
+ outs() << " Code Alignment Factor: " << CodeAlignmentFactor << "\n";
+ outs() << " Data Alignment Factor: " << DataAlignmentFactor << "\n";
+ outs() << " Return Address Register: " << ReturnAddressRegister << "\n";
+ if (AugmentationLength) {
+ outs() << " Augmentation Data Length: " << *AugmentationLength << "\n";
+ if (LSDAPointerEncoding) {
+ outs() << " FDE LSDA Pointer Encoding: "
+ << *LSDAPointerEncoding << "\n";
+ }
+ if (Personality) {
+ outs() << " Personality Encoding: " << *PersonalityEncoding << "\n";
+ outs() << " Personality: " << *Personality << "\n";
+ }
+ if (FDEPointerEncoding) {
+ outs() << " FDE Address Pointer Encoding: "
+ << *FDEPointerEncoding << "\n";
+ }
+ }
+ // FIXME: Handle instructions.
+ // For now just emit some bytes
+ outs() << " Instructions:\n ";
+ dumpBytes(makeArrayRef((const uint8_t*)Pos, (const uint8_t*)EntryEndPos),
+ outs());
+ outs() << "\n";
+ Pos = EntryEndPos;
+
+ // Cache this entry.
+ uint64_t Offset = EntryStartPos - Contents.data();
+ CachedCIEs[Offset] = { FDEPointerEncoding, LSDAPointerEncoding,
+ AugmentationLength.hasValue() };
+ continue;
+ }
+
+ // This is an FDE.
+ // The CIE pointer for an FDE is the same location as the ID which we
+ // already read.
+ uint32_t CIEPointer = ID;
+
+ const char *CIEStart = PosAfterLength - CIEPointer;
+ assert(CIEStart >= Contents.data() &&
+ "FDE points to CIE before the __eh_frame start");
+
+ uint64_t CIEOffset = CIEStart - Contents.data();
+ auto CIEIt = CachedCIEs.find(CIEOffset);
+ if (CIEIt == CachedCIEs.end())
+ llvm_unreachable("Couldn't find CIE at offset in to __eh_frame section");
+
+ const DecodedCIE &CIE = CIEIt->getSecond();
+ assert(CIE.FDEPointerEncoding &&
+ "FDE references CIE which did not set pointer encoding");
+
+ uint64_t PCPointerSize = getSizeForEncoding(is64Bit,
+ *CIE.FDEPointerEncoding);
+
+ uint64_t PCBegin = readPointer(Pos, is64Bit, *CIE.FDEPointerEncoding);
+ uint64_t PCRange = readPointer(Pos, is64Bit, *CIE.FDEPointerEncoding);
+
+ Optional<uint64_t> AugmentationLength;
+ uint32_t LSDAPointerSize;
+ Optional<uint64_t> LSDAPointer;
+ if (CIE.hasAugmentationLength) {
+ unsigned ULEBByteCount;
+ AugmentationLength = decodeULEB128((const uint8_t *)Pos,
+ &ULEBByteCount);
+ Pos += ULEBByteCount;
+
+ // Decode the LSDA if the CIE augmentation string said we should.
+ if (CIE.LSDAPointerEncoding) {
+ LSDAPointerSize = getSizeForEncoding(is64Bit, *CIE.LSDAPointerEncoding);
+ LSDAPointer = readPointer(Pos, is64Bit, *CIE.LSDAPointerEncoding);
+ }
+ }
+
+ outs() << "FDE:\n";
+ outs() << " Length: " << Length << "\n";
+ outs() << " CIE Offset: " << CIEOffset << "\n";
+
+ if (PCPointerSize == 8) {
+ outs() << format(" PC Begin: %016" PRIx64, PCBegin) << "\n";
+ outs() << format(" PC Range: %016" PRIx64, PCRange) << "\n";
+ } else {
+ outs() << format(" PC Begin: %08" PRIx64, PCBegin) << "\n";
+ outs() << format(" PC Range: %08" PRIx64, PCRange) << "\n";
+ }
+ if (AugmentationLength) {
+ outs() << " Augmentation Data Length: " << *AugmentationLength << "\n";
+ if (LSDAPointer) {
+ if (LSDAPointerSize == 8)
+ outs() << format(" LSDA Pointer: %016\n" PRIx64, *LSDAPointer);
+ else
+ outs() << format(" LSDA Pointer: %08\n" PRIx64, *LSDAPointer);
+ }
+ }
+
+ // FIXME: Handle instructions.
+ // For now just emit some bytes
+ outs() << " Instructions:\n ";
+ dumpBytes(makeArrayRef((const uint8_t*)Pos, (const uint8_t*)EntryEndPos),
+ outs());
+ outs() << "\n";
+ Pos = EntryEndPos;
+ }
+}
+
+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 = *SymRef.getSection();
+ if (Section == Obj->section_end())
+ continue;
+
+ uint64_t Addr = SymRef.getValue();
+ 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")
+ printMachOEHFrameSection(Obj, Symbols, Section);
+ }
+}
+
+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;
+ }
+ break;
+ case MachO::CPU_TYPE_X86_64:
+ outs() << " X86_64";
+ switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
+ case MachO::CPU_SUBTYPE_X86_64_ALL:
+ outs() << " ALL";
+ break;
+ case MachO::CPU_SUBTYPE_X86_64_H:
+ outs() << " Haswell";
+ break;
+ default:
+ outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
+ break;
+ }
+ 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";
+}
+
+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" PRIx64, vmaddr) << "\n";
+ outs() << " vmsize " << format("0x%08" PRIx64, 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 {
+ outs() << " maxprot ";
+ outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-");
+ outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-");
+ outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\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 {
+ outs() << " initprot ";
+ outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-");
+ outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-");
+ outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\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";
+ }
+}
+
+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" PRIx64, addr) << "\n";
+ outs() << " size " << format("0x%08" PRIx64, 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, bool Is64Bit,
+ 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 (Is64Bit) {
+ 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,
+ bool Is64Bit) {
+ 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 (Is64Bit) {
+ 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 ";
+ for (int i = 0; i < 16; ++i) {
+ outs() << format("%02" PRIX32, uuid.uuid[i]);
+ if (i == 3 || i == 5 || i == 7 || i == 9)
+ outs() << "-";
+ }
+ outs() << "\n";
+}
+
+static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) {
+ outs() << " cmd LC_RPATH\n";
+ outs() << " cmdsize " << rpath.cmdsize;
+ if (rpath.cmdsize < sizeof(struct MachO::rpath_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (rpath.path >= rpath.cmdsize)
+ outs() << " path ?(bad offset " << rpath.path << ")\n";
+ else {
+ const char *P = (const char *)(Ptr) + rpath.path;
+ outs() << " path " << P << " (offset " << rpath.path << ")\n";
+ }
+}
+
+static void PrintVersionMinLoadCommand(MachO::version_min_command vd) {
+ StringRef LoadCmdName;
+ switch (vd.cmd) {
+ case MachO::LC_VERSION_MIN_MACOSX:
+ LoadCmdName = "LC_VERSION_MIN_MACOSX";
+ break;
+ case MachO::LC_VERSION_MIN_IPHONEOS:
+ LoadCmdName = "LC_VERSION_MIN_IPHONEOS";
+ break;
+ case MachO::LC_VERSION_MIN_TVOS:
+ LoadCmdName = "LC_VERSION_MIN_TVOS";
+ break;
+ case MachO::LC_VERSION_MIN_WATCHOS:
+ LoadCmdName = "LC_VERSION_MIN_WATCHOS";
+ break;
+ default:
+ llvm_unreachable("Unknown version min load command");
+ }
+
+ outs() << " cmd " << LoadCmdName << '\n';
+ outs() << " cmdsize " << vd.cmdsize;
+ if (vd.cmdsize != sizeof(struct MachO::version_min_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " version "
+ << MachOObjectFile::getVersionMinMajor(vd, false) << "."
+ << MachOObjectFile::getVersionMinMinor(vd, false);
+ uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false);
+ if (Update != 0)
+ outs() << "." << Update;
+ outs() << "\n";
+ if (vd.sdk == 0)
+ outs() << " sdk n/a";
+ else {
+ outs() << " sdk "
+ << MachOObjectFile::getVersionMinMajor(vd, true) << "."
+ << MachOObjectFile::getVersionMinMinor(vd, true);
+ }
+ Update = MachOObjectFile::getVersionMinUpdate(vd, true);
+ if (Update != 0)
+ outs() << "." << Update;
+ 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 PrintEncryptionInfoCommand(MachO::encryption_info_command ec,
+ uint32_t object_size) {
+ outs() << " cmd LC_ENCRYPTION_INFO\n";
+ outs() << " cmdsize " << ec.cmdsize;
+ if (ec.cmdsize != sizeof(struct MachO::encryption_info_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " cryptoff " << ec.cryptoff;
+ if (ec.cryptoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " cryptsize " << ec.cryptsize;
+ if (ec.cryptsize > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " cryptid " << ec.cryptid << "\n";
+}
+
+static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec,
+ uint32_t object_size) {
+ outs() << " cmd LC_ENCRYPTION_INFO_64\n";
+ outs() << " cmdsize " << ec.cmdsize;
+ if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " cryptoff " << ec.cryptoff;
+ if (ec.cryptoff > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " cryptsize " << ec.cryptsize;
+ if (ec.cryptsize > object_size)
+ outs() << " (past end of file)\n";
+ else
+ outs() << "\n";
+ outs() << " cryptid " << ec.cryptid << "\n";
+ outs() << " pad " << ec.pad << "\n";
+}
+
+static void PrintLinkerOptionCommand(MachO::linker_option_command lo,
+ const char *Ptr) {
+ outs() << " cmd LC_LINKER_OPTION\n";
+ outs() << " cmdsize " << lo.cmdsize;
+ if (lo.cmdsize < sizeof(struct MachO::linker_option_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " count " << lo.count << "\n";
+ const char *string = Ptr + sizeof(struct MachO::linker_option_command);
+ uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command);
+ uint32_t i = 0;
+ while (left > 0) {
+ while (*string == '\0' && left > 0) {
+ string++;
+ left--;
+ }
+ if (left > 0) {
+ i++;
+ outs() << " string #" << i << " " << format("%.*s\n", left, string);
+ uint32_t NullPos = StringRef(string, left).find('\0');
+ uint32_t len = std::min(NullPos, left) + 1;
+ string += len;
+ left -= len;
+ }
+ }
+ if (lo.count != i)
+ outs() << " count " << lo.count << " does not match number of strings "
+ << i << "\n";
+}
+
+static void PrintSubFrameworkCommand(MachO::sub_framework_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_FRAMEWORK\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_framework_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (sub.umbrella < sub.cmdsize) {
+ const char *P = Ptr + sub.umbrella;
+ outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n";
+ } else {
+ outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n";
+ }
+}
+
+static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_UMBRELLA\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (sub.sub_umbrella < sub.cmdsize) {
+ const char *P = Ptr + sub.sub_umbrella;
+ outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n";
+ } else {
+ outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n";
+ }
+}
+
+static void PrintSubLibraryCommand(MachO::sub_library_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_LIBRARY\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_library_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (sub.sub_library < sub.cmdsize) {
+ const char *P = Ptr + sub.sub_library;
+ outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n";
+ } else {
+ outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n";
+ }
+}
+
+static void PrintSubClientCommand(MachO::sub_client_command sub,
+ const char *Ptr) {
+ outs() << " cmd LC_SUB_CLIENT\n";
+ outs() << " cmdsize " << sub.cmdsize;
+ if (sub.cmdsize < sizeof(struct MachO::sub_client_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ if (sub.client < sub.cmdsize) {
+ const char *P = Ptr + sub.client;
+ outs() << " client " << P << " (offset " << sub.client << ")\n";
+ } else {
+ outs() << " client ?(bad offset " << sub.client << ")\n";
+ }
+}
+
+static void PrintRoutinesCommand(MachO::routines_command r) {
+ outs() << " cmd LC_ROUTINES\n";
+ outs() << " cmdsize " << r.cmdsize;
+ if (r.cmdsize != sizeof(struct MachO::routines_command))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " init_address " << format("0x%08" PRIx32, r.init_address) << "\n";
+ outs() << " init_module " << r.init_module << "\n";
+ outs() << " reserved1 " << r.reserved1 << "\n";
+ outs() << " reserved2 " << r.reserved2 << "\n";
+ outs() << " reserved3 " << r.reserved3 << "\n";
+ outs() << " reserved4 " << r.reserved4 << "\n";
+ outs() << " reserved5 " << r.reserved5 << "\n";
+ outs() << " reserved6 " << r.reserved6 << "\n";
+}
+
+static void PrintRoutinesCommand64(MachO::routines_command_64 r) {
+ outs() << " cmd LC_ROUTINES_64\n";
+ outs() << " cmdsize " << r.cmdsize;
+ if (r.cmdsize != sizeof(struct MachO::routines_command_64))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+ outs() << " init_address " << format("0x%016" PRIx64, r.init_address) << "\n";
+ outs() << " init_module " << r.init_module << "\n";
+ outs() << " reserved1 " << r.reserved1 << "\n";
+ outs() << " reserved2 " << r.reserved2 << "\n";
+ outs() << " reserved3 " << r.reserved3 << "\n";
+ outs() << " reserved4 " << r.reserved4 << "\n";
+ outs() << " reserved5 " << r.reserved5 << "\n";
+ outs() << " reserved6 " << r.reserved6 << "\n";
+}
+
+static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) {
+ outs() << " rax " << format("0x%016" PRIx64, cpu64.rax);
+ outs() << " rbx " << format("0x%016" PRIx64, cpu64.rbx);
+ outs() << " rcx " << format("0x%016" PRIx64, cpu64.rcx) << "\n";
+ outs() << " rdx " << format("0x%016" PRIx64, cpu64.rdx);
+ outs() << " rdi " << format("0x%016" PRIx64, cpu64.rdi);
+ outs() << " rsi " << format("0x%016" PRIx64, cpu64.rsi) << "\n";
+ outs() << " rbp " << format("0x%016" PRIx64, cpu64.rbp);
+ outs() << " rsp " << format("0x%016" PRIx64, cpu64.rsp);
+ outs() << " r8 " << format("0x%016" PRIx64, cpu64.r8) << "\n";
+ outs() << " r9 " << format("0x%016" PRIx64, cpu64.r9);
+ outs() << " r10 " << format("0x%016" PRIx64, cpu64.r10);
+ outs() << " r11 " << format("0x%016" PRIx64, cpu64.r11) << "\n";
+ outs() << " r12 " << format("0x%016" PRIx64, cpu64.r12);
+ outs() << " r13 " << format("0x%016" PRIx64, cpu64.r13);
+ outs() << " r14 " << format("0x%016" PRIx64, cpu64.r14) << "\n";
+ outs() << " r15 " << format("0x%016" PRIx64, cpu64.r15);
+ outs() << " rip " << format("0x%016" PRIx64, cpu64.rip) << "\n";
+ outs() << "rflags " << format("0x%016" PRIx64, cpu64.rflags);
+ outs() << " cs " << format("0x%016" PRIx64, cpu64.cs);
+ outs() << " fs " << format("0x%016" PRIx64, cpu64.fs) << "\n";
+ outs() << " gs " << format("0x%016" PRIx64, cpu64.gs) << "\n";
+}
+
+static void Print_mmst_reg(MachO::mmst_reg_t &r) {
+ uint32_t f;
+ outs() << "\t mmst_reg ";
+ for (f = 0; f < 10; f++)
+ outs() << format("%02" PRIx32, (r.mmst_reg[f] & 0xff)) << " ";
+ outs() << "\n";
+ outs() << "\t mmst_rsrv ";
+ for (f = 0; f < 6; f++)
+ outs() << format("%02" PRIx32, (r.mmst_rsrv[f] & 0xff)) << " ";
+ outs() << "\n";
+}
+
+static void Print_xmm_reg(MachO::xmm_reg_t &r) {
+ uint32_t f;
+ outs() << "\t xmm_reg ";
+ for (f = 0; f < 16; f++)
+ outs() << format("%02" PRIx32, (r.xmm_reg[f] & 0xff)) << " ";
+ outs() << "\n";
+}
+
+static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) {
+ outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0];
+ outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n";
+ outs() << "\t control: invalid " << fpu.fpu_fcw.invalid;
+ outs() << " denorm " << fpu.fpu_fcw.denorm;
+ outs() << " zdiv " << fpu.fpu_fcw.zdiv;
+ outs() << " ovrfl " << fpu.fpu_fcw.ovrfl;
+ outs() << " undfl " << fpu.fpu_fcw.undfl;
+ outs() << " precis " << fpu.fpu_fcw.precis << "\n";
+ outs() << "\t\t pc ";
+ if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B)
+ outs() << "FP_PREC_24B ";
+ else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B)
+ outs() << "FP_PREC_53B ";
+ else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B)
+ outs() << "FP_PREC_64B ";
+ else
+ outs() << fpu.fpu_fcw.pc << " ";
+ outs() << "rc ";
+ if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR)
+ outs() << "FP_RND_NEAR ";
+ else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN)
+ outs() << "FP_RND_DOWN ";
+ else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP)
+ outs() << "FP_RND_UP ";
+ else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP)
+ outs() << "FP_CHOP ";
+ outs() << "\n";
+ outs() << "\t status: invalid " << fpu.fpu_fsw.invalid;
+ outs() << " denorm " << fpu.fpu_fsw.denorm;
+ outs() << " zdiv " << fpu.fpu_fsw.zdiv;
+ outs() << " ovrfl " << fpu.fpu_fsw.ovrfl;
+ outs() << " undfl " << fpu.fpu_fsw.undfl;
+ outs() << " precis " << fpu.fpu_fsw.precis;
+ outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n";
+ outs() << "\t errsumm " << fpu.fpu_fsw.errsumm;
+ outs() << " c0 " << fpu.fpu_fsw.c0;
+ outs() << " c1 " << fpu.fpu_fsw.c1;
+ outs() << " c2 " << fpu.fpu_fsw.c2;
+ outs() << " tos " << fpu.fpu_fsw.tos;
+ outs() << " c3 " << fpu.fpu_fsw.c3;
+ outs() << " busy " << fpu.fpu_fsw.busy << "\n";
+ outs() << "\t fpu_ftw " << format("0x%02" PRIx32, fpu.fpu_ftw);
+ outs() << " fpu_rsrv1 " << format("0x%02" PRIx32, fpu.fpu_rsrv1);
+ outs() << " fpu_fop " << format("0x%04" PRIx32, fpu.fpu_fop);
+ outs() << " fpu_ip " << format("0x%08" PRIx32, fpu.fpu_ip) << "\n";
+ outs() << "\t fpu_cs " << format("0x%04" PRIx32, fpu.fpu_cs);
+ outs() << " fpu_rsrv2 " << format("0x%04" PRIx32, fpu.fpu_rsrv2);
+ outs() << " fpu_dp " << format("0x%08" PRIx32, fpu.fpu_dp);
+ outs() << " fpu_ds " << format("0x%04" PRIx32, fpu.fpu_ds) << "\n";
+ outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32, fpu.fpu_rsrv3);
+ outs() << " fpu_mxcsr " << format("0x%08" PRIx32, fpu.fpu_mxcsr);
+ outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32, fpu.fpu_mxcsrmask);
+ outs() << "\n";
+ outs() << "\t fpu_stmm0:\n";
+ Print_mmst_reg(fpu.fpu_stmm0);
+ outs() << "\t fpu_stmm1:\n";
+ Print_mmst_reg(fpu.fpu_stmm1);
+ outs() << "\t fpu_stmm2:\n";
+ Print_mmst_reg(fpu.fpu_stmm2);
+ outs() << "\t fpu_stmm3:\n";
+ Print_mmst_reg(fpu.fpu_stmm3);
+ outs() << "\t fpu_stmm4:\n";
+ Print_mmst_reg(fpu.fpu_stmm4);
+ outs() << "\t fpu_stmm5:\n";
+ Print_mmst_reg(fpu.fpu_stmm5);
+ outs() << "\t fpu_stmm6:\n";
+ Print_mmst_reg(fpu.fpu_stmm6);
+ outs() << "\t fpu_stmm7:\n";
+ Print_mmst_reg(fpu.fpu_stmm7);
+ outs() << "\t fpu_xmm0:\n";
+ Print_xmm_reg(fpu.fpu_xmm0);
+ outs() << "\t fpu_xmm1:\n";
+ Print_xmm_reg(fpu.fpu_xmm1);
+ outs() << "\t fpu_xmm2:\n";
+ Print_xmm_reg(fpu.fpu_xmm2);
+ outs() << "\t fpu_xmm3:\n";
+ Print_xmm_reg(fpu.fpu_xmm3);
+ outs() << "\t fpu_xmm4:\n";
+ Print_xmm_reg(fpu.fpu_xmm4);
+ outs() << "\t fpu_xmm5:\n";
+ Print_xmm_reg(fpu.fpu_xmm5);
+ outs() << "\t fpu_xmm6:\n";
+ Print_xmm_reg(fpu.fpu_xmm6);
+ outs() << "\t fpu_xmm7:\n";
+ Print_xmm_reg(fpu.fpu_xmm7);
+ outs() << "\t fpu_xmm8:\n";
+ Print_xmm_reg(fpu.fpu_xmm8);
+ outs() << "\t fpu_xmm9:\n";
+ Print_xmm_reg(fpu.fpu_xmm9);
+ outs() << "\t fpu_xmm10:\n";
+ Print_xmm_reg(fpu.fpu_xmm10);
+ outs() << "\t fpu_xmm11:\n";
+ Print_xmm_reg(fpu.fpu_xmm11);
+ outs() << "\t fpu_xmm12:\n";
+ Print_xmm_reg(fpu.fpu_xmm12);
+ outs() << "\t fpu_xmm13:\n";
+ Print_xmm_reg(fpu.fpu_xmm13);
+ outs() << "\t fpu_xmm14:\n";
+ Print_xmm_reg(fpu.fpu_xmm14);
+ outs() << "\t fpu_xmm15:\n";
+ Print_xmm_reg(fpu.fpu_xmm15);
+ outs() << "\t fpu_rsrv4:\n";
+ for (uint32_t f = 0; f < 6; f++) {
+ outs() << "\t ";
+ for (uint32_t g = 0; g < 16; g++)
+ outs() << format("%02" PRIx32, fpu.fpu_rsrv4[f * g]) << " ";
+ outs() << "\n";
+ }
+ outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32, fpu.fpu_reserved1);
+ outs() << "\n";
+}
+
+static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) {
+ outs() << "\t trapno " << format("0x%08" PRIx32, exc64.trapno);
+ outs() << " err " << format("0x%08" PRIx32, exc64.err);
+ outs() << " faultvaddr " << format("0x%016" PRIx64, exc64.faultvaddr) << "\n";
+}
+
+static void PrintThreadCommand(MachO::thread_command t, const char *Ptr,
+ bool isLittleEndian, uint32_t cputype) {
+ if (t.cmd == MachO::LC_THREAD)
+ outs() << " cmd LC_THREAD\n";
+ else if (t.cmd == MachO::LC_UNIXTHREAD)
+ outs() << " cmd LC_UNIXTHREAD\n";
+ else
+ outs() << " cmd " << t.cmd << " (unknown)\n";
+ outs() << " cmdsize " << t.cmdsize;
+ if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t))
+ outs() << " Incorrect size\n";
+ else
+ outs() << "\n";
+
+ const char *begin = Ptr + sizeof(struct MachO::thread_command);
+ const char *end = Ptr + t.cmdsize;
+ uint32_t flavor, count, left;
+ if (cputype == MachO::CPU_TYPE_X86_64) {
+ while (begin < end) {
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&flavor, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ flavor = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(flavor);
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&count, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ count = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(count);
+ if (flavor == MachO::x86_THREAD_STATE64) {
+ outs() << " flavor x86_THREAD_STATE64\n";
+ if (count == MachO::x86_THREAD_STATE64_COUNT)
+ outs() << " count x86_THREAD_STATE64_COUNT\n";
+ else
+ outs() << " count " << count
+ << " (not x86_THREAD_STATE64_COUNT)\n";
+ MachO::x86_thread_state64_t cpu64;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_thread_state64_t)) {
+ memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t));
+ begin += sizeof(MachO::x86_thread_state64_t);
+ } else {
+ memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t));
+ memcpy(&cpu64, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(cpu64);
+ Print_x86_thread_state64_t(cpu64);
+ } else if (flavor == MachO::x86_THREAD_STATE) {
+ outs() << " flavor x86_THREAD_STATE\n";
+ if (count == MachO::x86_THREAD_STATE_COUNT)
+ outs() << " count x86_THREAD_STATE_COUNT\n";
+ else
+ outs() << " count " << count
+ << " (not x86_THREAD_STATE_COUNT)\n";
+ struct MachO::x86_thread_state_t ts;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_thread_state_t)) {
+ memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t));
+ begin += sizeof(MachO::x86_thread_state_t);
+ } else {
+ memset(&ts, '\0', sizeof(MachO::x86_thread_state_t));
+ memcpy(&ts, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(ts);
+ if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) {
+ outs() << "\t tsh.flavor x86_THREAD_STATE64 ";
+ if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT)
+ outs() << "tsh.count x86_THREAD_STATE64_COUNT\n";
+ else
+ outs() << "tsh.count " << ts.tsh.count
+ << " (not x86_THREAD_STATE64_COUNT\n";
+ Print_x86_thread_state64_t(ts.uts.ts64);
+ } else {
+ outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count "
+ << ts.tsh.count << "\n";
+ }
+ } else if (flavor == MachO::x86_FLOAT_STATE) {
+ outs() << " flavor x86_FLOAT_STATE\n";
+ if (count == MachO::x86_FLOAT_STATE_COUNT)
+ outs() << " count x86_FLOAT_STATE_COUNT\n";
+ else
+ outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n";
+ struct MachO::x86_float_state_t fs;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_float_state_t)) {
+ memcpy(&fs, begin, sizeof(MachO::x86_float_state_t));
+ begin += sizeof(MachO::x86_float_state_t);
+ } else {
+ memset(&fs, '\0', sizeof(MachO::x86_float_state_t));
+ memcpy(&fs, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(fs);
+ if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) {
+ outs() << "\t fsh.flavor x86_FLOAT_STATE64 ";
+ if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT)
+ outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n";
+ else
+ outs() << "fsh.count " << fs.fsh.count
+ << " (not x86_FLOAT_STATE64_COUNT\n";
+ Print_x86_float_state_t(fs.ufs.fs64);
+ } else {
+ outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count "
+ << fs.fsh.count << "\n";
+ }
+ } else if (flavor == MachO::x86_EXCEPTION_STATE) {
+ outs() << " flavor x86_EXCEPTION_STATE\n";
+ if (count == MachO::x86_EXCEPTION_STATE_COUNT)
+ outs() << " count x86_EXCEPTION_STATE_COUNT\n";
+ else
+ outs() << " count " << count
+ << " (not x86_EXCEPTION_STATE_COUNT)\n";
+ struct MachO::x86_exception_state_t es;
+ left = end - begin;
+ if (left >= sizeof(MachO::x86_exception_state_t)) {
+ memcpy(&es, begin, sizeof(MachO::x86_exception_state_t));
+ begin += sizeof(MachO::x86_exception_state_t);
+ } else {
+ memset(&es, '\0', sizeof(MachO::x86_exception_state_t));
+ memcpy(&es, begin, left);
+ begin += left;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ swapStruct(es);
+ if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) {
+ outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n";
+ if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT)
+ outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n";
+ else
+ outs() << "\t esh.count " << es.esh.count
+ << " (not x86_EXCEPTION_STATE64_COUNT\n";
+ Print_x86_exception_state_t(es.ues.es64);
+ } else {
+ outs() << "\t esh.flavor " << es.esh.flavor << " esh.count "
+ << es.esh.count << "\n";
+ }
+ } else {
+ outs() << " flavor " << flavor << " (unknown)\n";
+ outs() << " count " << count << "\n";
+ outs() << " state (unknown)\n";
+ begin += count * sizeof(uint32_t);
+ }
+ }
+ } else {
+ while (begin < end) {
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&flavor, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ flavor = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(flavor);
+ if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
+ memcpy((char *)&count, begin, sizeof(uint32_t));
+ begin += sizeof(uint32_t);
+ } else {
+ count = 0;
+ begin = end;
+ }
+ if (isLittleEndian != sys::IsLittleEndianHost)
+ sys::swapByteOrder(count);
+ outs() << " flavor " << flavor << "\n";
+ outs() << " count " << count << "\n";
+ outs() << " state (Unknown cputype/cpusubtype)\n";
+ begin += count * sizeof(uint32_t);
+ }
+ }
+}
+
+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 filetype,
+ uint32_t cputype, bool verbose) {
+ StringRef Buf = Obj->getData();
+ unsigned Index = 0;
+ for (const auto &Command : Obj->load_commands()) {
+ outs() << "Load command " << Index++ << "\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 S = Obj->getSection(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, Obj->is64Bit(), 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(),
+ Obj->is64Bit());
+ } 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_RPATH) {
+ MachO::rpath_command Rpath = Obj->getRpathCommand(Command);
+ PrintRpathLoadCommand(Rpath, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX ||
+ Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS ||
+ Command.C.cmd == MachO::LC_VERSION_MIN_TVOS ||
+ Command.C.cmd == MachO::LC_VERSION_MIN_WATCHOS) {
+ 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_ENCRYPTION_INFO) {
+ MachO::encryption_info_command Ei =
+ Obj->getEncryptionInfoCommand(Command);
+ PrintEncryptionInfoCommand(Ei, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) {
+ MachO::encryption_info_command_64 Ei =
+ Obj->getEncryptionInfoCommand64(Command);
+ PrintEncryptionInfoCommand64(Ei, Buf.size());
+ } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) {
+ MachO::linker_option_command Lo =
+ Obj->getLinkerOptionLoadCommand(Command);
+ PrintLinkerOptionCommand(Lo, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) {
+ MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command);
+ PrintSubFrameworkCommand(Sf, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) {
+ MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command);
+ PrintSubUmbrellaCommand(Sf, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) {
+ MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command);
+ PrintSubLibraryCommand(Sl, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) {
+ MachO::sub_client_command Sc = Obj->getSubClientCommand(Command);
+ PrintSubClientCommand(Sc, Command.Ptr);
+ } else if (Command.C.cmd == MachO::LC_ROUTINES) {
+ MachO::routines_command Rc = Obj->getRoutinesCommand(Command);
+ PrintRoutinesCommand(Rc);
+ } else if (Command.C.cmd == MachO::LC_ROUTINES_64) {
+ MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command);
+ PrintRoutinesCommand64(Rc);
+ } else if (Command.C.cmd == MachO::LC_THREAD ||
+ Command.C.cmd == MachO::LC_UNIXTHREAD) {
+ MachO::thread_command Tc = Obj->getThreadCommand(Command);
+ PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype);
+ } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB ||
+ Command.C.cmd == MachO::LC_ID_DYLIB ||
+ Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
+ Command.C.cmd == MachO::LC_REEXPORT_DYLIB ||
+ Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
+ Command.C.cmd == MachO::LC_LOAD_UPWARD_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.
+ }
+}
+
+static void getAndPrintMachHeader(const MachOObjectFile *Obj,
+ 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);
+ 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);
+ filetype = H.filetype;
+ cputype = H.cputype;
+ }
+}
+
+void llvm::printMachOFileHeader(const object::ObjectFile *Obj) {
+ const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
+ uint32_t filetype = 0;
+ uint32_t cputype = 0;
+ getAndPrintMachHeader(file, filetype, cputype, !NonVerbose);
+ PrintLoadCommands(file, filetype, cputype, !NonVerbose);
+}
+
+//===----------------------------------------------------------------------===//
+// 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);
+ bool isValidSegIndexAndOffset(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 = Obj->hasPageZeroSegment() ? 1 : 0;
+ StringRef CurSegName;
+ uint64_t CurSegAddress;
+ for (const SectionRef &Section : Obj->sections()) {
+ SectionInfo Info;
+ error(Section.getName(Info.SectionName));
+ Info.Address = Section.getAddress();
+ Info.Size = Section.getSize();
+ 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");
+}
+
+bool SegInfo::isValidSegIndexAndOffset(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 true;
+ }
+ return false;
+}
+
+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());
+ }
+}
+
+static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) {
+ StringRef DylibName;
+ switch (Ordinal) {
+ case MachO::BIND_SPECIAL_DYLIB_SELF:
+ return "this-image";
+ case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE:
+ return "main-executable";
+ case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP:
+ return "flat-namespace";
+ default:
+ if (Ordinal > 0) {
+ std::error_code EC =
+ Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName);
+ if (EC)
+ return "<<bad library ordinal>>";
+ return DylibName;
+ }
+ }
+ return "<<unknown special ordinal>>";
+}
+
+//===----------------------------------------------------------------------===//
+// bind table dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOBindTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address type "
+ "addend dylib symbol\n";
+ for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable()) {
+ 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 __got 0x00012010 pointer 0 libSystem ___stack_chk_guard
+ StringRef Attr;
+ if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT)
+ Attr = " (weak_import)";
+ outs() << left_justify(SegmentName, 8) << " "
+ << left_justify(SectionName, 18) << " "
+ << format_hex(Address, 10, true) << " "
+ << left_justify(Entry.typeName(), 8) << " "
+ << format_decimal(Entry.addend(), 8) << " "
+ << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
+ << Entry.symbolName() << Attr << "\n";
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// lazy bind table dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOLazyBindTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address "
+ "dylib symbol\n";
+ for (const llvm::object::MachOBindEntry &Entry : Obj->lazyBindTable()) {
+ 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 __got 0x00012010 libSystem ___stack_chk_guard
+ outs() << left_justify(SegmentName, 8) << " "
+ << left_justify(SectionName, 18) << " "
+ << format_hex(Address, 10, true) << " "
+ << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
+ << Entry.symbolName() << "\n";
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// weak bind table dumping
+//===----------------------------------------------------------------------===//
+
+void llvm::printMachOWeakBindTable(const object::MachOObjectFile *Obj) {
+ // Build table of sections so names can used in final output.
+ SegInfo sectionTable(Obj);
+
+ outs() << "segment section address "
+ "type addend symbol\n";
+ for (const llvm::object::MachOBindEntry &Entry : Obj->weakBindTable()) {
+ // Strong symbols don't have a location to update.
+ if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) {
+ outs() << " strong "
+ << Entry.symbolName() << "\n";
+ continue;
+ }
+ 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 __data 0x00001000 pointer 0 _foo
+ outs() << left_justify(SegmentName, 8) << " "
+ << left_justify(SectionName, 18) << " "
+ << format_hex(Address, 10, true) << " "
+ << left_justify(Entry.typeName(), 8) << " "
+ << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName()
+ << "\n";
+ }
+}
+
+// get_dyld_bind_info_symbolname() is used for disassembly and passed an
+// address, ReferenceValue, in the Mach-O file and looks in the dyld bind
+// information for that address. If the address is found its binding symbol
+// name is returned. If not nullptr is returned.
+static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
+ struct DisassembleInfo *info) {
+ if (info->bindtable == nullptr) {
+ info->bindtable = new (BindTable);
+ SegInfo sectionTable(info->O);
+ for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable()) {
+ uint32_t SegIndex = Entry.segmentIndex();
+ uint64_t OffsetInSeg = Entry.segmentOffset();
+ if (!sectionTable.isValidSegIndexAndOffset(SegIndex, OffsetInSeg))
+ continue;
+ uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
+ const char *SymbolName = nullptr;
+ StringRef name = Entry.symbolName();
+ if (!name.empty())
+ SymbolName = name.data();
+ info->bindtable->push_back(std::make_pair(Address, SymbolName));
+ }
+ }
+ for (bind_table_iterator BI = info->bindtable->begin(),
+ BE = info->bindtable->end();
+ BI != BE; ++BI) {
+ uint64_t Address = BI->first;
+ if (ReferenceValue == Address) {
+ const char *SymbolName = BI->second;
+ return SymbolName;
+ }
+ }
+ return nullptr;
+}
diff --git a/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp b/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
new file mode 100644
index 0000000..22167c7
--- /dev/null
+++ b/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -0,0 +1,1629 @@
+//===-- llvm-objdump.cpp - Object file dumping utility for llvm -----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This program is a utility that works like binutils "objdump", that is, it
+// dumps out a plethora of information about an object file depending on the
+// flags.
+//
+// The flags and output of this program should be near identical to those of
+// binutils objdump.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-objdump.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/CodeGen/FaultMaps.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/MCInstrInfo.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCRelocationInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/ELFObjectFile.h"
+#include "llvm/Object/COFF.h"
+#include "llvm/Object/MachO.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/GraphWriter.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <cctype>
+#include <cstring>
+#include <system_error>
+
+using namespace llvm;
+using namespace object;
+
+static cl::list<std::string>
+InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore);
+
+cl::opt<bool>
+llvm::Disassemble("disassemble",
+ cl::desc("Display assembler mnemonics for the machine instructions"));
+static cl::alias
+Disassembled("d", cl::desc("Alias for --disassemble"),
+ cl::aliasopt(Disassemble));
+
+cl::opt<bool>
+llvm::DisassembleAll("disassemble-all",
+ cl::desc("Display assembler mnemonics for the machine instructions"));
+static cl::alias
+DisassembleAlld("D", cl::desc("Alias for --disassemble-all"),
+ cl::aliasopt(DisassembleAll));
+
+cl::opt<bool>
+llvm::Relocations("r", cl::desc("Display the relocation entries in the file"));
+
+cl::opt<bool>
+llvm::SectionContents("s", cl::desc("Display the content of each section"));
+
+cl::opt<bool>
+llvm::SymbolTable("t", cl::desc("Display the symbol table"));
+
+cl::opt<bool>
+llvm::ExportsTrie("exports-trie", cl::desc("Display mach-o exported symbols"));
+
+cl::opt<bool>
+llvm::Rebase("rebase", cl::desc("Display mach-o rebasing info"));
+
+cl::opt<bool>
+llvm::Bind("bind", cl::desc("Display mach-o binding info"));
+
+cl::opt<bool>
+llvm::LazyBind("lazy-bind", cl::desc("Display mach-o lazy binding info"));
+
+cl::opt<bool>
+llvm::WeakBind("weak-bind", cl::desc("Display mach-o weak binding info"));
+
+cl::opt<bool>
+llvm::RawClangAST("raw-clang-ast",
+ cl::desc("Dump the raw binary contents of the clang AST section"));
+
+static cl::opt<bool>
+MachOOpt("macho", cl::desc("Use MachO specific object file parser"));
+static cl::alias
+MachOm("m", cl::desc("Alias for --macho"), cl::aliasopt(MachOOpt));
+
+cl::opt<std::string>
+llvm::TripleName("triple", cl::desc("Target triple to disassemble for, "
+ "see -version for available targets"));
+
+cl::opt<std::string>
+llvm::MCPU("mcpu",
+ cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+ cl::value_desc("cpu-name"),
+ cl::init(""));
+
+cl::opt<std::string>
+llvm::ArchName("arch-name", cl::desc("Target arch to disassemble for, "
+ "see -version for available targets"));
+
+cl::opt<bool>
+llvm::SectionHeaders("section-headers", cl::desc("Display summaries of the "
+ "headers for each section."));
+static cl::alias
+SectionHeadersShort("headers", cl::desc("Alias for --section-headers"),
+ cl::aliasopt(SectionHeaders));
+static cl::alias
+SectionHeadersShorter("h", cl::desc("Alias for --section-headers"),
+ cl::aliasopt(SectionHeaders));
+
+cl::list<std::string>
+llvm::FilterSections("section", cl::desc("Operate on the specified sections only. "
+ "With -macho dump segment,section"));
+cl::alias
+static FilterSectionsj("j", cl::desc("Alias for --section"),
+ cl::aliasopt(llvm::FilterSections));
+
+cl::list<std::string>
+llvm::MAttrs("mattr",
+ cl::CommaSeparated,
+ cl::desc("Target specific attributes"),
+ cl::value_desc("a1,+a2,-a3,..."));
+
+cl::opt<bool>
+llvm::NoShowRawInsn("no-show-raw-insn", cl::desc("When disassembling "
+ "instructions, do not print "
+ "the instruction bytes."));
+
+cl::opt<bool>
+llvm::UnwindInfo("unwind-info", cl::desc("Display unwind information"));
+
+static cl::alias
+UnwindInfoShort("u", cl::desc("Alias for --unwind-info"),
+ cl::aliasopt(UnwindInfo));
+
+cl::opt<bool>
+llvm::PrivateHeaders("private-headers",
+ cl::desc("Display format specific file headers"));
+
+static cl::alias
+PrivateHeadersShort("p", cl::desc("Alias for --private-headers"),
+ cl::aliasopt(PrivateHeaders));
+
+cl::opt<bool>
+ llvm::PrintImmHex("print-imm-hex",
+ cl::desc("Use hex format for immediate values"));
+
+cl::opt<bool> PrintFaultMaps("fault-map-section",
+ cl::desc("Display contents of faultmap section"));
+
+static StringRef ToolName;
+
+namespace {
+typedef std::function<bool(llvm::object::SectionRef const &)> FilterPredicate;
+
+class SectionFilterIterator {
+public:
+ SectionFilterIterator(FilterPredicate P,
+ llvm::object::section_iterator const &I,
+ llvm::object::section_iterator const &E)
+ : Predicate(P), Iterator(I), End(E) {
+ ScanPredicate();
+ }
+ const llvm::object::SectionRef &operator*() const { return *Iterator; }
+ SectionFilterIterator &operator++() {
+ ++Iterator;
+ ScanPredicate();
+ return *this;
+ }
+ bool operator!=(SectionFilterIterator const &Other) const {
+ return Iterator != Other.Iterator;
+ }
+
+private:
+ void ScanPredicate() {
+ while (Iterator != End && !Predicate(*Iterator)) {
+ ++Iterator;
+ }
+ }
+ FilterPredicate Predicate;
+ llvm::object::section_iterator Iterator;
+ llvm::object::section_iterator End;
+};
+
+class SectionFilter {
+public:
+ SectionFilter(FilterPredicate P, llvm::object::ObjectFile const &O)
+ : Predicate(P), Object(O) {}
+ SectionFilterIterator begin() {
+ return SectionFilterIterator(Predicate, Object.section_begin(),
+ Object.section_end());
+ }
+ SectionFilterIterator end() {
+ return SectionFilterIterator(Predicate, Object.section_end(),
+ Object.section_end());
+ }
+
+private:
+ FilterPredicate Predicate;
+ llvm::object::ObjectFile const &Object;
+};
+SectionFilter ToolSectionFilter(llvm::object::ObjectFile const &O) {
+ return SectionFilter([](llvm::object::SectionRef const &S) {
+ if(FilterSections.empty())
+ return true;
+ llvm::StringRef String;
+ std::error_code error = S.getName(String);
+ if (error)
+ return false;
+ return std::find(FilterSections.begin(),
+ FilterSections.end(),
+ String) != FilterSections.end();
+ },
+ O);
+}
+}
+
+void llvm::error(std::error_code EC) {
+ if (!EC)
+ return;
+
+ errs() << ToolName << ": error reading file: " << EC.message() << ".\n";
+ errs().flush();
+ exit(1);
+}
+
+LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef File,
+ std::error_code EC) {
+ assert(EC);
+ errs() << ToolName << ": '" << File << "': " << EC.message() << ".\n";
+ exit(1);
+}
+
+static const Target *getTarget(const ObjectFile *Obj = nullptr) {
+ // Figure out the target triple.
+ llvm::Triple TheTriple("unknown-unknown-unknown");
+ if (TripleName.empty()) {
+ if (Obj) {
+ TheTriple.setArch(Triple::ArchType(Obj->getArch()));
+ // TheTriple defaults to ELF, and COFF doesn't have an environment:
+ // the best we can do here is indicate that it is mach-o.
+ if (Obj->isMachO())
+ TheTriple.setObjectFormat(Triple::MachO);
+
+ if (Obj->isCOFF()) {
+ const auto COFFObj = dyn_cast<COFFObjectFile>(Obj);
+ if (COFFObj->getArch() == Triple::thumb)
+ TheTriple.setTriple("thumbv7-windows");
+ }
+ }
+ } else
+ TheTriple.setTriple(Triple::normalize(TripleName));
+
+ // Get the target specific parser.
+ std::string Error;
+ const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
+ Error);
+ if (!TheTarget)
+ report_fatal_error("can't find target: " + Error);
+
+ // Update the triple name and return the found target.
+ TripleName = TheTriple.getTriple();
+ return TheTarget;
+}
+
+bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {
+ return a.getOffset() < b.getOffset();
+}
+
+namespace {
+class PrettyPrinter {
+public:
+ virtual ~PrettyPrinter(){}
+ virtual void printInst(MCInstPrinter &IP, const MCInst *MI,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &OS, StringRef Annot,
+ MCSubtargetInfo const &STI) {
+ outs() << format("%8" PRIx64 ":", Address);
+ if (!NoShowRawInsn) {
+ outs() << "\t";
+ dumpBytes(Bytes, outs());
+ }
+ IP.printInst(MI, outs(), "", STI);
+ }
+};
+PrettyPrinter PrettyPrinterInst;
+class HexagonPrettyPrinter : public PrettyPrinter {
+public:
+ void printLead(ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &OS) {
+ uint32_t opcode =
+ (Bytes[3] << 24) | (Bytes[2] << 16) | (Bytes[1] << 8) | Bytes[0];
+ OS << format("%8" PRIx64 ":", Address);
+ if (!NoShowRawInsn) {
+ OS << "\t";
+ dumpBytes(Bytes.slice(0, 4), OS);
+ OS << format("%08" PRIx32, opcode);
+ }
+ }
+ void printInst(MCInstPrinter &IP, const MCInst *MI,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &OS, StringRef Annot,
+ MCSubtargetInfo const &STI) override {
+ std::string Buffer;
+ {
+ raw_string_ostream TempStream(Buffer);
+ IP.printInst(MI, TempStream, "", STI);
+ }
+ StringRef Contents(Buffer);
+ // Split off bundle attributes
+ auto PacketBundle = Contents.rsplit('\n');
+ // Split off first instruction from the rest
+ auto HeadTail = PacketBundle.first.split('\n');
+ auto Preamble = " { ";
+ auto Separator = "";
+ while(!HeadTail.first.empty()) {
+ OS << Separator;
+ Separator = "\n";
+ printLead(Bytes, Address, OS);
+ OS << Preamble;
+ Preamble = " ";
+ StringRef Inst;
+ auto Duplex = HeadTail.first.split('\v');
+ if(!Duplex.second.empty()){
+ OS << Duplex.first;
+ OS << "; ";
+ Inst = Duplex.second;
+ }
+ else
+ Inst = HeadTail.first;
+ OS << Inst;
+ Bytes = Bytes.slice(4);
+ Address += 4;
+ HeadTail = HeadTail.second.split('\n');
+ }
+ OS << " } " << PacketBundle.second;
+ }
+};
+HexagonPrettyPrinter HexagonPrettyPrinterInst;
+PrettyPrinter &selectPrettyPrinter(Triple const &Triple) {
+ switch(Triple.getArch()) {
+ default:
+ return PrettyPrinterInst;
+ case Triple::hexagon:
+ return HexagonPrettyPrinterInst;
+ }
+}
+}
+
+template <class ELFT>
+static std::error_code getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
+ const RelocationRef &RelRef,
+ SmallVectorImpl<char> &Result) {
+ DataRefImpl Rel = RelRef.getRawDataRefImpl();
+
+ typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
+ typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
+ typedef typename ELFObjectFile<ELFT>::Elf_Rela Elf_Rela;
+
+ const ELFFile<ELFT> &EF = *Obj->getELFFile();
+
+ ErrorOr<const Elf_Shdr *> SecOrErr = EF.getSection(Rel.d.a);
+ if (std::error_code EC = SecOrErr.getError())
+ return EC;
+ const Elf_Shdr *Sec = *SecOrErr;
+ ErrorOr<const Elf_Shdr *> SymTabOrErr = EF.getSection(Sec->sh_link);
+ if (std::error_code EC = SymTabOrErr.getError())
+ return EC;
+ const Elf_Shdr *SymTab = *SymTabOrErr;
+ assert(SymTab->sh_type == ELF::SHT_SYMTAB ||
+ SymTab->sh_type == ELF::SHT_DYNSYM);
+ ErrorOr<const Elf_Shdr *> StrTabSec = EF.getSection(SymTab->sh_link);
+ if (std::error_code EC = StrTabSec.getError())
+ return EC;
+ ErrorOr<StringRef> StrTabOrErr = EF.getStringTable(*StrTabSec);
+ if (std::error_code EC = StrTabOrErr.getError())
+ return EC;
+ StringRef StrTab = *StrTabOrErr;
+ uint8_t type = RelRef.getType();
+ StringRef res;
+ int64_t addend = 0;
+ switch (Sec->sh_type) {
+ default:
+ return object_error::parse_failed;
+ case ELF::SHT_REL: {
+ // TODO: Read implicit addend from section data.
+ break;
+ }
+ case ELF::SHT_RELA: {
+ const Elf_Rela *ERela = Obj->getRela(Rel);
+ addend = ERela->r_addend;
+ break;
+ }
+ }
+ symbol_iterator SI = RelRef.getSymbol();
+ const Elf_Sym *symb = Obj->getSymbol(SI->getRawDataRefImpl());
+ StringRef Target;
+ if (symb->getType() == ELF::STT_SECTION) {
+ ErrorOr<section_iterator> SymSI = SI->getSection();
+ if (std::error_code EC = SymSI.getError())
+ return EC;
+ const Elf_Shdr *SymSec = Obj->getSection((*SymSI)->getRawDataRefImpl());
+ ErrorOr<StringRef> SecName = EF.getSectionName(SymSec);
+ if (std::error_code EC = SecName.getError())
+ return EC;
+ Target = *SecName;
+ } else {
+ ErrorOr<StringRef> SymName = symb->getName(StrTab);
+ if (!SymName)
+ return SymName.getError();
+ Target = *SymName;
+ }
+ switch (EF.getHeader()->e_machine) {
+ case ELF::EM_X86_64:
+ switch (type) {
+ case ELF::R_X86_64_PC8:
+ case ELF::R_X86_64_PC16:
+ case ELF::R_X86_64_PC32: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << Target << (addend < 0 ? "" : "+") << addend << "-P";
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ } break;
+ case ELF::R_X86_64_8:
+ case ELF::R_X86_64_16:
+ case ELF::R_X86_64_32:
+ case ELF::R_X86_64_32S:
+ case ELF::R_X86_64_64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << Target << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ } break;
+ default:
+ res = "Unknown";
+ }
+ break;
+ case ELF::EM_AARCH64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << Target;
+ if (addend != 0)
+ fmt << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ break;
+ }
+ case ELF::EM_386:
+ case ELF::EM_IAMCU:
+ case ELF::EM_ARM:
+ case ELF::EM_HEXAGON:
+ case ELF::EM_MIPS:
+ res = Target;
+ break;
+ default:
+ res = "Unknown";
+ }
+ if (Result.empty())
+ Result.append(res.begin(), res.end());
+ return std::error_code();
+}
+
+static std::error_code getRelocationValueString(const ELFObjectFileBase *Obj,
+ const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
+ if (auto *ELF32LE = dyn_cast<ELF32LEObjectFile>(Obj))
+ return getRelocationValueString(ELF32LE, Rel, Result);
+ if (auto *ELF64LE = dyn_cast<ELF64LEObjectFile>(Obj))
+ return getRelocationValueString(ELF64LE, Rel, Result);
+ if (auto *ELF32BE = dyn_cast<ELF32BEObjectFile>(Obj))
+ return getRelocationValueString(ELF32BE, Rel, Result);
+ auto *ELF64BE = cast<ELF64BEObjectFile>(Obj);
+ return getRelocationValueString(ELF64BE, Rel, Result);
+}
+
+static std::error_code getRelocationValueString(const COFFObjectFile *Obj,
+ const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
+ symbol_iterator SymI = Rel.getSymbol();
+ ErrorOr<StringRef> SymNameOrErr = SymI->getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ return EC;
+ StringRef SymName = *SymNameOrErr;
+ Result.append(SymName.begin(), SymName.end());
+ return std::error_code();
+}
+
+static void printRelocationTargetName(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE,
+ raw_string_ostream &fmt) {
+ bool IsScattered = O->isRelocationScattered(RE);
+
+ // Target of a scattered relocation is an address. In the interest of
+ // generating pretty output, scan through the symbol table looking for a
+ // symbol that aligns with that address. If we find one, print it.
+ // Otherwise, we just print the hex address of the target.
+ if (IsScattered) {
+ uint32_t Val = O->getPlainRelocationSymbolNum(RE);
+
+ for (const SymbolRef &Symbol : O->symbols()) {
+ std::error_code ec;
+ ErrorOr<uint64_t> Addr = Symbol.getAddress();
+ if ((ec = Addr.getError()))
+ report_fatal_error(ec.message());
+ if (*Addr != Val)
+ continue;
+ ErrorOr<StringRef> Name = Symbol.getName();
+ if (std::error_code EC = Name.getError())
+ report_fatal_error(EC.message());
+ fmt << *Name;
+ return;
+ }
+
+ // If we couldn't find a symbol that this relocation refers to, try
+ // to find a section beginning instead.
+ for (const SectionRef &Section : ToolSectionFilter(*O)) {
+ std::error_code ec;
+
+ StringRef Name;
+ uint64_t Addr = Section.getAddress();
+ if (Addr != Val)
+ continue;
+ if ((ec = Section.getName(Name)))
+ report_fatal_error(ec.message());
+ fmt << Name;
+ return;
+ }
+
+ fmt << format("0x%x", Val);
+ return;
+ }
+
+ StringRef S;
+ bool isExtern = O->getPlainRelocationExternal(RE);
+ uint64_t Val = O->getPlainRelocationSymbolNum(RE);
+
+ if (isExtern) {
+ symbol_iterator SI = O->symbol_begin();
+ advance(SI, Val);
+ ErrorOr<StringRef> SOrErr = SI->getName();
+ error(SOrErr.getError());
+ S = *SOrErr;
+ } else {
+ section_iterator SI = O->section_begin();
+ // Adjust for the fact that sections are 1-indexed.
+ advance(SI, Val - 1);
+ SI->getName(S);
+ }
+
+ fmt << S;
+}
+
+static std::error_code getRelocationValueString(const MachOObjectFile *Obj,
+ const RelocationRef &RelRef,
+ SmallVectorImpl<char> &Result) {
+ DataRefImpl Rel = RelRef.getRawDataRefImpl();
+ MachO::any_relocation_info RE = Obj->getRelocation(Rel);
+
+ unsigned Arch = Obj->getArch();
+
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ unsigned Type = Obj->getAnyRelocationType(RE);
+ bool IsPCRel = Obj->getAnyRelocationPCRel(RE);
+
+ // Determine any addends that should be displayed with the relocation.
+ // These require decoding the relocation type, which is triple-specific.
+
+ // X86_64 has entirely custom relocation types.
+ if (Arch == Triple::x86_64) {
+ bool isPCRel = Obj->getAnyRelocationPCRel(RE);
+
+ switch (Type) {
+ case MachO::X86_64_RELOC_GOT_LOAD:
+ case MachO::X86_64_RELOC_GOT: {
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "@GOT";
+ if (isPCRel)
+ fmt << "PCREL";
+ break;
+ }
+ case MachO::X86_64_RELOC_SUBTRACTOR: {
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // X86_64_RELOC_SUBTRACTOR must be followed by a relocation of type
+ // X86_64_RELOC_UNSIGNED.
+ // NOTE: Scattered relocations don't exist on x86_64.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+ if (RType != MachO::X86_64_RELOC_UNSIGNED)
+ report_fatal_error("Expected X86_64_RELOC_UNSIGNED after "
+ "X86_64_RELOC_SUBTRACTOR.");
+
+ // The X86_64_RELOC_UNSIGNED contains the minuend symbol;
+ // X86_64_RELOC_SUBTRACTOR contains the subtrahend.
+ printRelocationTargetName(Obj, RENext, fmt);
+ fmt << "-";
+ printRelocationTargetName(Obj, RE, fmt);
+ break;
+ }
+ case MachO::X86_64_RELOC_TLV:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "@TLV";
+ if (isPCRel)
+ fmt << "P";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_1:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-1";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_2:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-2";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_4:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-4";
+ break;
+ default:
+ printRelocationTargetName(Obj, RE, fmt);
+ break;
+ }
+ // X86 and ARM share some relocation types in common.
+ } else if (Arch == Triple::x86 || Arch == Triple::arm ||
+ Arch == Triple::ppc) {
+ // Generic relocation types...
+ switch (Type) {
+ case MachO::GENERIC_RELOC_PAIR: // prints no info
+ return std::error_code();
+ case MachO::GENERIC_RELOC_SECTDIFF: {
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // X86 sect diff's must be followed by a relocation of type
+ // GENERIC_RELOC_PAIR.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+
+ if (RType != MachO::GENERIC_RELOC_PAIR)
+ report_fatal_error("Expected GENERIC_RELOC_PAIR after "
+ "GENERIC_RELOC_SECTDIFF.");
+
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-";
+ printRelocationTargetName(Obj, RENext, fmt);
+ break;
+ }
+ }
+
+ if (Arch == Triple::x86 || Arch == Triple::ppc) {
+ switch (Type) {
+ case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: {
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // X86 sect diff's must be followed by a relocation of type
+ // GENERIC_RELOC_PAIR.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+ if (RType != MachO::GENERIC_RELOC_PAIR)
+ report_fatal_error("Expected GENERIC_RELOC_PAIR after "
+ "GENERIC_RELOC_LOCAL_SECTDIFF.");
+
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-";
+ printRelocationTargetName(Obj, RENext, fmt);
+ break;
+ }
+ case MachO::GENERIC_RELOC_TLV: {
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "@TLV";
+ if (IsPCRel)
+ fmt << "P";
+ break;
+ }
+ default:
+ printRelocationTargetName(Obj, RE, fmt);
+ }
+ } else { // ARM-specific relocations
+ switch (Type) {
+ case MachO::ARM_RELOC_HALF:
+ case MachO::ARM_RELOC_HALF_SECTDIFF: {
+ // Half relocations steal a bit from the length field to encode
+ // whether this is an upper16 or a lower16 relocation.
+ bool isUpper = Obj->getAnyRelocationLength(RE) >> 1;
+
+ if (isUpper)
+ fmt << ":upper16:(";
+ else
+ fmt << ":lower16:(";
+ printRelocationTargetName(Obj, RE, fmt);
+
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // ARM half relocs must be followed by a relocation of type
+ // ARM_RELOC_PAIR.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+ if (RType != MachO::ARM_RELOC_PAIR)
+ report_fatal_error("Expected ARM_RELOC_PAIR after "
+ "ARM_RELOC_HALF");
+
+ // NOTE: The half of the target virtual address is stashed in the
+ // address field of the secondary relocation, but we can't reverse
+ // engineer the constant offset from it without decoding the movw/movt
+ // instruction to find the other half in its immediate field.
+
+ // ARM_RELOC_HALF_SECTDIFF encodes the second section in the
+ // symbol/section pointer of the follow-on relocation.
+ if (Type == MachO::ARM_RELOC_HALF_SECTDIFF) {
+ fmt << "-";
+ printRelocationTargetName(Obj, RENext, fmt);
+ }
+
+ fmt << ")";
+ break;
+ }
+ default: { printRelocationTargetName(Obj, RE, fmt); }
+ }
+ }
+ } else
+ printRelocationTargetName(Obj, RE, fmt);
+
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ return std::error_code();
+}
+
+static std::error_code getRelocationValueString(const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
+ const ObjectFile *Obj = Rel.getObject();
+ if (auto *ELF = dyn_cast<ELFObjectFileBase>(Obj))
+ return getRelocationValueString(ELF, Rel, Result);
+ if (auto *COFF = dyn_cast<COFFObjectFile>(Obj))
+ return getRelocationValueString(COFF, Rel, Result);
+ auto *MachO = cast<MachOObjectFile>(Obj);
+ return getRelocationValueString(MachO, Rel, Result);
+}
+
+/// @brief Indicates whether this relocation should hidden when listing
+/// relocations, usually because it is the trailing part of a multipart
+/// relocation that will be printed as part of the leading relocation.
+static bool getHidden(RelocationRef RelRef) {
+ const ObjectFile *Obj = RelRef.getObject();
+ auto *MachO = dyn_cast<MachOObjectFile>(Obj);
+ if (!MachO)
+ return false;
+
+ unsigned Arch = MachO->getArch();
+ DataRefImpl Rel = RelRef.getRawDataRefImpl();
+ uint64_t Type = MachO->getRelocationType(Rel);
+
+ // On arches that use the generic relocations, GENERIC_RELOC_PAIR
+ // is always hidden.
+ if (Arch == Triple::x86 || Arch == Triple::arm || Arch == Triple::ppc) {
+ if (Type == MachO::GENERIC_RELOC_PAIR)
+ return true;
+ } else if (Arch == Triple::x86_64) {
+ // On x86_64, X86_64_RELOC_UNSIGNED is hidden only when it follows
+ // an X86_64_RELOC_SUBTRACTOR.
+ if (Type == MachO::X86_64_RELOC_UNSIGNED && Rel.d.a > 0) {
+ DataRefImpl RelPrev = Rel;
+ RelPrev.d.a--;
+ uint64_t PrevType = MachO->getRelocationType(RelPrev);
+ if (PrevType == MachO::X86_64_RELOC_SUBTRACTOR)
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
+ const Target *TheTarget = getTarget(Obj);
+
+ // 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();
+ }
+
+ std::unique_ptr<const MCRegisterInfo> MRI(
+ TheTarget->createMCRegInfo(TripleName));
+ if (!MRI)
+ report_fatal_error("error: no register info for target " + TripleName);
+
+ // Set up disassembler.
+ std::unique_ptr<const MCAsmInfo> AsmInfo(
+ TheTarget->createMCAsmInfo(*MRI, TripleName));
+ if (!AsmInfo)
+ report_fatal_error("error: no assembly info for target " + TripleName);
+ std::unique_ptr<const MCSubtargetInfo> STI(
+ TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
+ if (!STI)
+ report_fatal_error("error: no subtarget info for target " + TripleName);
+ std::unique_ptr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo());
+ if (!MII)
+ report_fatal_error("error: no instruction info for target " + TripleName);
+ std::unique_ptr<const MCObjectFileInfo> MOFI(new MCObjectFileInfo);
+ MCContext Ctx(AsmInfo.get(), MRI.get(), MOFI.get());
+
+ std::unique_ptr<MCDisassembler> DisAsm(
+ TheTarget->createMCDisassembler(*STI, Ctx));
+ if (!DisAsm)
+ report_fatal_error("error: no disassembler for target " + TripleName);
+
+ std::unique_ptr<const MCInstrAnalysis> MIA(
+ TheTarget->createMCInstrAnalysis(MII.get()));
+
+ int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
+ std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
+ Triple(TripleName), AsmPrinterVariant, *AsmInfo, *MII, *MRI));
+ if (!IP)
+ report_fatal_error("error: no instruction printer for target " +
+ TripleName);
+ IP->setPrintImmHex(PrintImmHex);
+ PrettyPrinter &PIP = selectPrettyPrinter(Triple(TripleName));
+
+ StringRef Fmt = Obj->getBytesInAddress() > 4 ? "\t\t%016" PRIx64 ": " :
+ "\t\t\t%08" PRIx64 ": ";
+
+ // Create a mapping, RelocSecs = SectionRelocMap[S], where sections
+ // in RelocSecs contain the relocations for section S.
+ std::error_code EC;
+ std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
+ section_iterator Sec2 = Section.getRelocatedSection();
+ if (Sec2 != Obj->section_end())
+ SectionRelocMap[*Sec2].push_back(Section);
+ }
+
+ // Create a mapping from virtual address to symbol name. This is used to
+ // pretty print the symbols while disassembling.
+ typedef std::vector<std::pair<uint64_t, StringRef>> SectionSymbolsTy;
+ std::map<SectionRef, SectionSymbolsTy> AllSymbols;
+ for (const SymbolRef &Symbol : Obj->symbols()) {
+ ErrorOr<uint64_t> AddressOrErr = Symbol.getAddress();
+ error(AddressOrErr.getError());
+ uint64_t Address = *AddressOrErr;
+
+ ErrorOr<StringRef> Name = Symbol.getName();
+ error(Name.getError());
+ if (Name->empty())
+ continue;
+
+ ErrorOr<section_iterator> SectionOrErr = Symbol.getSection();
+ error(SectionOrErr.getError());
+ section_iterator SecI = *SectionOrErr;
+ if (SecI == Obj->section_end())
+ continue;
+
+ AllSymbols[*SecI].emplace_back(Address, *Name);
+ }
+
+ // Create a mapping from virtual address to section.
+ std::vector<std::pair<uint64_t, SectionRef>> SectionAddresses;
+ for (SectionRef Sec : Obj->sections())
+ SectionAddresses.emplace_back(Sec.getAddress(), Sec);
+ array_pod_sort(SectionAddresses.begin(), SectionAddresses.end());
+
+ // Linked executables (.exe and .dll files) typically don't include a real
+ // symbol table but they might contain an export table.
+ if (const auto *COFFObj = dyn_cast<COFFObjectFile>(Obj)) {
+ for (const auto &ExportEntry : COFFObj->export_directories()) {
+ StringRef Name;
+ error(ExportEntry.getSymbolName(Name));
+ if (Name.empty())
+ continue;
+ uint32_t RVA;
+ error(ExportEntry.getExportRVA(RVA));
+
+ uint64_t VA = COFFObj->getImageBase() + RVA;
+ auto Sec = std::upper_bound(
+ SectionAddresses.begin(), SectionAddresses.end(), VA,
+ [](uint64_t LHS, const std::pair<uint64_t, SectionRef> &RHS) {
+ return LHS < RHS.first;
+ });
+ if (Sec != SectionAddresses.begin())
+ --Sec;
+ else
+ Sec = SectionAddresses.end();
+
+ if (Sec != SectionAddresses.end())
+ AllSymbols[Sec->second].emplace_back(VA, Name);
+ }
+ }
+
+ // Sort all the symbols, this allows us to use a simple binary search to find
+ // a symbol near an address.
+ for (std::pair<const SectionRef, SectionSymbolsTy> &SecSyms : AllSymbols)
+ array_pod_sort(SecSyms.second.begin(), SecSyms.second.end());
+
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
+ if (!DisassembleAll && (!Section.isText() || Section.isVirtual()))
+ continue;
+
+ uint64_t SectionAddr = Section.getAddress();
+ uint64_t SectSize = Section.getSize();
+ if (!SectSize)
+ continue;
+
+ // Get the list of all the symbols in this section.
+ SectionSymbolsTy &Symbols = AllSymbols[Section];
+ std::vector<uint64_t> DataMappingSymsAddr;
+ std::vector<uint64_t> TextMappingSymsAddr;
+ if (Obj->isELF() && Obj->getArch() == Triple::aarch64) {
+ for (const auto &Symb : Symbols) {
+ uint64_t Address = Symb.first;
+ StringRef Name = Symb.second;
+ if (Name.startswith("$d"))
+ DataMappingSymsAddr.push_back(Address - SectionAddr);
+ if (Name.startswith("$x"))
+ TextMappingSymsAddr.push_back(Address - SectionAddr);
+ }
+ }
+
+ std::sort(DataMappingSymsAddr.begin(), DataMappingSymsAddr.end());
+ std::sort(TextMappingSymsAddr.begin(), TextMappingSymsAddr.end());
+
+ // Make a list of all the relocations for this section.
+ std::vector<RelocationRef> Rels;
+ if (InlineRelocs) {
+ for (const SectionRef &RelocSec : SectionRelocMap[Section]) {
+ for (const RelocationRef &Reloc : RelocSec.relocations()) {
+ Rels.push_back(Reloc);
+ }
+ }
+ }
+
+ // Sort relocations by address.
+ std::sort(Rels.begin(), Rels.end(), RelocAddressLess);
+
+ StringRef SegmentName = "";
+ if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) {
+ DataRefImpl DR = Section.getRawDataRefImpl();
+ SegmentName = MachO->getSectionFinalSegmentName(DR);
+ }
+ StringRef name;
+ error(Section.getName(name));
+ outs() << "Disassembly of section ";
+ if (!SegmentName.empty())
+ outs() << SegmentName << ",";
+ outs() << name << ':';
+
+ // If the section has no symbol at the start, just insert a dummy one.
+ if (Symbols.empty() || Symbols[0].first != 0)
+ Symbols.insert(Symbols.begin(), std::make_pair(SectionAddr, name));
+
+ SmallString<40> Comments;
+ raw_svector_ostream CommentStream(Comments);
+
+ StringRef BytesStr;
+ error(Section.getContents(BytesStr));
+ ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
+ BytesStr.size());
+
+ uint64_t Size;
+ uint64_t Index;
+
+ std::vector<RelocationRef>::const_iterator rel_cur = Rels.begin();
+ std::vector<RelocationRef>::const_iterator rel_end = Rels.end();
+ // Disassemble symbol by symbol.
+ for (unsigned si = 0, se = Symbols.size(); si != se; ++si) {
+
+ uint64_t Start = Symbols[si].first - SectionAddr;
+ // The end is either the section end or the beginning of the next
+ // symbol.
+ uint64_t End =
+ (si == se - 1) ? SectSize : Symbols[si + 1].first - SectionAddr;
+ // Don't try to disassemble beyond the end of section contents.
+ if (End > SectSize)
+ End = SectSize;
+ // If this symbol has the same address as the next symbol, then skip it.
+ if (Start >= End)
+ continue;
+
+ outs() << '\n' << Symbols[si].second << ":\n";
+
+#ifndef NDEBUG
+ raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
+#else
+ raw_ostream &DebugOut = nulls();
+#endif
+
+ for (Index = Start; Index < End; Index += Size) {
+ MCInst Inst;
+
+ // AArch64 ELF binaries can interleave data and text in the
+ // same section. We rely on the markers introduced to
+ // understand what we need to dump.
+ if (Obj->isELF() && Obj->getArch() == Triple::aarch64) {
+ uint64_t Stride = 0;
+
+ auto DAI = std::lower_bound(DataMappingSymsAddr.begin(),
+ DataMappingSymsAddr.end(), Index);
+ if (DAI != DataMappingSymsAddr.end() && *DAI == Index) {
+ // Switch to data.
+ while (Index < End) {
+ outs() << format("%8" PRIx64 ":", SectionAddr + Index);
+ outs() << "\t";
+ if (Index + 4 <= End) {
+ Stride = 4;
+ dumpBytes(Bytes.slice(Index, 4), outs());
+ outs() << "\t.word";
+ } else if (Index + 2 <= End) {
+ Stride = 2;
+ dumpBytes(Bytes.slice(Index, 2), outs());
+ outs() << "\t.short";
+ } else {
+ Stride = 1;
+ dumpBytes(Bytes.slice(Index, 1), outs());
+ outs() << "\t.byte";
+ }
+ Index += Stride;
+ outs() << "\n";
+ auto TAI = std::lower_bound(TextMappingSymsAddr.begin(),
+ TextMappingSymsAddr.end(), Index);
+ if (TAI != TextMappingSymsAddr.end() && *TAI == Index)
+ break;
+ }
+ }
+ }
+
+ if (Index >= End)
+ break;
+
+ if (DisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
+ SectionAddr + Index, DebugOut,
+ CommentStream)) {
+ PIP.printInst(*IP, &Inst,
+ Bytes.slice(Index, Size),
+ SectionAddr + Index, outs(), "", *STI);
+ outs() << CommentStream.str();
+ Comments.clear();
+
+ // Try to resolve the target of a call, tail call, etc. to a specific
+ // symbol.
+ if (MIA && (MIA->isCall(Inst) || MIA->isUnconditionalBranch(Inst) ||
+ MIA->isConditionalBranch(Inst))) {
+ uint64_t Target;
+ if (MIA->evaluateBranch(Inst, SectionAddr + Index, Size, Target)) {
+ // In a relocatable object, the target's section must reside in
+ // the same section as the call instruction or it is accessed
+ // through a relocation.
+ //
+ // In a non-relocatable object, the target may be in any section.
+ //
+ // N.B. We don't walk the relocations in the relocatable case yet.
+ auto *TargetSectionSymbols = &Symbols;
+ if (!Obj->isRelocatableObject()) {
+ auto SectionAddress = std::upper_bound(
+ SectionAddresses.begin(), SectionAddresses.end(), Target,
+ [](uint64_t LHS,
+ const std::pair<uint64_t, SectionRef> &RHS) {
+ return LHS < RHS.first;
+ });
+ if (SectionAddress != SectionAddresses.begin()) {
+ --SectionAddress;
+ TargetSectionSymbols = &AllSymbols[SectionAddress->second];
+ } else {
+ TargetSectionSymbols = nullptr;
+ }
+ }
+
+ // Find the first symbol in the section whose offset is less than
+ // or equal to the target.
+ if (TargetSectionSymbols) {
+ auto TargetSym = std::upper_bound(
+ TargetSectionSymbols->begin(), TargetSectionSymbols->end(),
+ Target, [](uint64_t LHS,
+ const std::pair<uint64_t, StringRef> &RHS) {
+ return LHS < RHS.first;
+ });
+ if (TargetSym != TargetSectionSymbols->begin()) {
+ --TargetSym;
+ uint64_t TargetAddress = std::get<0>(*TargetSym);
+ StringRef TargetName = std::get<1>(*TargetSym);
+ outs() << " <" << TargetName;
+ uint64_t Disp = Target - TargetAddress;
+ if (Disp)
+ outs() << '+' << utohexstr(Disp);
+ outs() << '>';
+ }
+ }
+ }
+ }
+ outs() << "\n";
+ } else {
+ errs() << ToolName << ": warning: invalid instruction encoding\n";
+ if (Size == 0)
+ Size = 1; // skip illegible bytes
+ }
+
+ // Print relocation for instruction.
+ while (rel_cur != rel_end) {
+ bool hidden = getHidden(*rel_cur);
+ uint64_t addr = rel_cur->getOffset();
+ SmallString<16> name;
+ SmallString<32> val;
+
+ // If this relocation is hidden, skip it.
+ if (hidden) goto skip_print_rel;
+
+ // Stop when rel_cur's address is past the current instruction.
+ if (addr >= Index + Size) break;
+ rel_cur->getTypeName(name);
+ error(getRelocationValueString(*rel_cur, val));
+ outs() << format(Fmt.data(), SectionAddr + addr) << name
+ << "\t" << val << "\n";
+
+ skip_print_rel:
+ ++rel_cur;
+ }
+ }
+ }
+ }
+}
+
+void llvm::PrintRelocations(const ObjectFile *Obj) {
+ StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 :
+ "%08" PRIx64;
+ // Regular objdump doesn't print relocations in non-relocatable object
+ // files.
+ if (!Obj->isRelocatableObject())
+ return;
+
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
+ if (Section.relocation_begin() == Section.relocation_end())
+ continue;
+ StringRef secname;
+ error(Section.getName(secname));
+ outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n";
+ for (const RelocationRef &Reloc : Section.relocations()) {
+ bool hidden = getHidden(Reloc);
+ uint64_t address = Reloc.getOffset();
+ SmallString<32> relocname;
+ SmallString<32> valuestr;
+ if (hidden)
+ continue;
+ Reloc.getTypeName(relocname);
+ error(getRelocationValueString(Reloc, valuestr));
+ outs() << format(Fmt.data(), address) << " " << relocname << " "
+ << valuestr << "\n";
+ }
+ outs() << "\n";
+ }
+}
+
+void llvm::PrintSectionHeaders(const ObjectFile *Obj) {
+ outs() << "Sections:\n"
+ "Idx Name Size Address Type\n";
+ unsigned i = 0;
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
+ StringRef Name;
+ error(Section.getName(Name));
+ uint64_t Address = Section.getAddress();
+ uint64_t Size = Section.getSize();
+ bool Text = Section.isText();
+ bool Data = Section.isData();
+ bool BSS = Section.isBSS();
+ std::string Type = (std::string(Text ? "TEXT " : "") +
+ (Data ? "DATA " : "") + (BSS ? "BSS" : ""));
+ outs() << format("%3d %-13s %08" PRIx64 " %016" PRIx64 " %s\n", i,
+ Name.str().c_str(), Size, Address, Type.c_str());
+ ++i;
+ }
+}
+
+void llvm::PrintSectionContents(const ObjectFile *Obj) {
+ std::error_code EC;
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
+ StringRef Name;
+ StringRef Contents;
+ error(Section.getName(Name));
+ uint64_t BaseAddr = Section.getAddress();
+ uint64_t Size = Section.getSize();
+ if (!Size)
+ continue;
+
+ outs() << "Contents of section " << Name << ":\n";
+ if (Section.isBSS()) {
+ outs() << format("<skipping contents of bss section at [%04" PRIx64
+ ", %04" PRIx64 ")>\n",
+ BaseAddr, BaseAddr + Size);
+ continue;
+ }
+
+ error(Section.getContents(Contents));
+
+ // Dump out the content as hex and printable ascii characters.
+ for (std::size_t addr = 0, end = Contents.size(); addr < end; addr += 16) {
+ outs() << format(" %04" PRIx64 " ", BaseAddr + addr);
+ // Dump line of hex.
+ for (std::size_t i = 0; i < 16; ++i) {
+ if (i != 0 && i % 4 == 0)
+ outs() << ' ';
+ if (addr + i < end)
+ outs() << hexdigit((Contents[addr + i] >> 4) & 0xF, true)
+ << hexdigit(Contents[addr + i] & 0xF, true);
+ else
+ outs() << " ";
+ }
+ // Print ascii.
+ outs() << " ";
+ for (std::size_t i = 0; i < 16 && addr + i < end; ++i) {
+ if (std::isprint(static_cast<unsigned char>(Contents[addr + i]) & 0xFF))
+ outs() << Contents[addr + i];
+ else
+ outs() << ".";
+ }
+ outs() << "\n";
+ }
+ }
+}
+
+void llvm::PrintSymbolTable(const ObjectFile *o) {
+ outs() << "SYMBOL TABLE:\n";
+
+ if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) {
+ printCOFFSymbolTable(coff);
+ return;
+ }
+ for (const SymbolRef &Symbol : o->symbols()) {
+ ErrorOr<uint64_t> AddressOrError = Symbol.getAddress();
+ error(AddressOrError.getError());
+ uint64_t Address = *AddressOrError;
+ SymbolRef::Type Type = Symbol.getType();
+ uint32_t Flags = Symbol.getFlags();
+ ErrorOr<section_iterator> SectionOrErr = Symbol.getSection();
+ error(SectionOrErr.getError());
+ section_iterator Section = *SectionOrErr;
+ StringRef Name;
+ if (Type == SymbolRef::ST_Debug && Section != o->section_end()) {
+ Section->getName(Name);
+ } else {
+ ErrorOr<StringRef> NameOrErr = Symbol.getName();
+ error(NameOrErr.getError());
+ Name = *NameOrErr;
+ }
+
+ bool Global = Flags & SymbolRef::SF_Global;
+ bool Weak = Flags & SymbolRef::SF_Weak;
+ bool Absolute = Flags & SymbolRef::SF_Absolute;
+ bool Common = Flags & SymbolRef::SF_Common;
+ bool Hidden = Flags & SymbolRef::SF_Hidden;
+
+ char GlobLoc = ' ';
+ if (Type != SymbolRef::ST_Unknown)
+ GlobLoc = Global ? 'g' : 'l';
+ char Debug = (Type == SymbolRef::ST_Debug || Type == SymbolRef::ST_File)
+ ? 'd' : ' ';
+ char FileFunc = ' ';
+ if (Type == SymbolRef::ST_File)
+ FileFunc = 'f';
+ else if (Type == SymbolRef::ST_Function)
+ FileFunc = 'F';
+
+ const char *Fmt = o->getBytesInAddress() > 4 ? "%016" PRIx64 :
+ "%08" PRIx64;
+
+ outs() << format(Fmt, Address) << " "
+ << GlobLoc // Local -> 'l', Global -> 'g', Neither -> ' '
+ << (Weak ? 'w' : ' ') // Weak?
+ << ' ' // Constructor. Not supported yet.
+ << ' ' // Warning. Not supported yet.
+ << ' ' // Indirect reference to another symbol.
+ << Debug // Debugging (d) or dynamic (D) symbol.
+ << FileFunc // Name of function (F), file (f) or object (O).
+ << ' ';
+ if (Absolute) {
+ outs() << "*ABS*";
+ } else if (Common) {
+ outs() << "*COM*";
+ } else if (Section == o->section_end()) {
+ outs() << "*UND*";
+ } else {
+ if (const MachOObjectFile *MachO =
+ dyn_cast<const MachOObjectFile>(o)) {
+ DataRefImpl DR = Section->getRawDataRefImpl();
+ StringRef SegmentName = MachO->getSectionFinalSegmentName(DR);
+ outs() << SegmentName << ",";
+ }
+ StringRef SectionName;
+ error(Section->getName(SectionName));
+ outs() << SectionName;
+ }
+
+ outs() << '\t';
+ if (Common || isa<ELFObjectFileBase>(o)) {
+ uint64_t Val =
+ Common ? Symbol.getAlignment() : ELFSymbolRef(Symbol).getSize();
+ outs() << format("\t %08" PRIx64 " ", Val);
+ }
+
+ if (Hidden) {
+ outs() << ".hidden ";
+ }
+ outs() << Name
+ << '\n';
+ }
+}
+
+static void PrintUnwindInfo(const ObjectFile *o) {
+ outs() << "Unwind info:\n\n";
+
+ if (const COFFObjectFile *coff = dyn_cast<COFFObjectFile>(o)) {
+ printCOFFUnwindInfo(coff);
+ } else if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOUnwindInfo(MachO);
+ else {
+ // TODO: Extract DWARF dump tool to objdump.
+ errs() << "This operation is only currently supported "
+ "for COFF and MachO object files.\n";
+ return;
+ }
+}
+
+void llvm::printExportsTrie(const ObjectFile *o) {
+ outs() << "Exports trie:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOExportsTrie(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printRebaseTable(const ObjectFile *o) {
+ outs() << "Rebase table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachORebaseTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printBindTable(const ObjectFile *o) {
+ outs() << "Bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printLazyBindTable(const ObjectFile *o) {
+ outs() << "Lazy bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOLazyBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printWeakBindTable(const ObjectFile *o) {
+ outs() << "Weak bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOWeakBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+/// Dump the raw contents of the __clangast section so the output can be piped
+/// into llvm-bcanalyzer.
+void llvm::printRawClangAST(const ObjectFile *Obj) {
+ if (outs().is_displayed()) {
+ errs() << "The -raw-clang-ast option will dump the raw binary contents of "
+ "the clang ast section.\n"
+ "Please redirect the output to a file or another program such as "
+ "llvm-bcanalyzer.\n";
+ return;
+ }
+
+ StringRef ClangASTSectionName("__clangast");
+ if (isa<COFFObjectFile>(Obj)) {
+ ClangASTSectionName = "clangast";
+ }
+
+ Optional<object::SectionRef> ClangASTSection;
+ for (auto Sec : ToolSectionFilter(*Obj)) {
+ StringRef Name;
+ Sec.getName(Name);
+ if (Name == ClangASTSectionName) {
+ ClangASTSection = Sec;
+ break;
+ }
+ }
+ if (!ClangASTSection)
+ return;
+
+ StringRef ClangASTContents;
+ error(ClangASTSection.getValue().getContents(ClangASTContents));
+ outs().write(ClangASTContents.data(), ClangASTContents.size());
+}
+
+static void printFaultMaps(const ObjectFile *Obj) {
+ const char *FaultMapSectionName = nullptr;
+
+ if (isa<ELFObjectFileBase>(Obj)) {
+ FaultMapSectionName = ".llvm_faultmaps";
+ } else if (isa<MachOObjectFile>(Obj)) {
+ FaultMapSectionName = "__llvm_faultmaps";
+ } else {
+ errs() << "This operation is only currently supported "
+ "for ELF and Mach-O executable files.\n";
+ return;
+ }
+
+ Optional<object::SectionRef> FaultMapSection;
+
+ for (auto Sec : ToolSectionFilter(*Obj)) {
+ StringRef Name;
+ Sec.getName(Name);
+ if (Name == FaultMapSectionName) {
+ FaultMapSection = Sec;
+ break;
+ }
+ }
+
+ outs() << "FaultMap table:\n";
+
+ if (!FaultMapSection.hasValue()) {
+ outs() << "<not found>\n";
+ return;
+ }
+
+ StringRef FaultMapContents;
+ error(FaultMapSection.getValue().getContents(FaultMapContents));
+
+ FaultMapParser FMP(FaultMapContents.bytes_begin(),
+ FaultMapContents.bytes_end());
+
+ outs() << FMP;
+}
+
+static void printPrivateFileHeader(const ObjectFile *o) {
+ if (o->isELF())
+ printELFFileHeader(o);
+ else if (o->isCOFF())
+ printCOFFFileHeader(o);
+ else if (o->isMachO())
+ printMachOFileHeader(o);
+ else
+ report_fatal_error("Invalid/Unsupported object file format");
+}
+
+static void DumpObject(const ObjectFile *o) {
+ // Avoid other output when using a raw option.
+ if (!RawClangAST) {
+ outs() << '\n';
+ outs() << o->getFileName()
+ << ":\tfile format " << o->getFileFormatName() << "\n\n";
+ }
+
+ if (Disassemble)
+ DisassembleObject(o, Relocations);
+ if (Relocations && !Disassemble)
+ PrintRelocations(o);
+ if (SectionHeaders)
+ PrintSectionHeaders(o);
+ if (SectionContents)
+ PrintSectionContents(o);
+ if (SymbolTable)
+ PrintSymbolTable(o);
+ if (UnwindInfo)
+ PrintUnwindInfo(o);
+ if (PrivateHeaders)
+ printPrivateFileHeader(o);
+ if (ExportsTrie)
+ printExportsTrie(o);
+ if (Rebase)
+ printRebaseTable(o);
+ if (Bind)
+ printBindTable(o);
+ if (LazyBind)
+ printLazyBindTable(o);
+ if (WeakBind)
+ printWeakBindTable(o);
+ if (RawClangAST)
+ printRawClangAST(o);
+ if (PrintFaultMaps)
+ printFaultMaps(o);
+}
+
+/// @brief Dump each object file in \a a;
+static void DumpArchive(const Archive *a) {
+ for (auto &ErrorOrChild : a->children()) {
+ if (std::error_code EC = ErrorOrChild.getError())
+ report_error(a->getFileName(), EC);
+ const Archive::Child &C = *ErrorOrChild;
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (std::error_code EC = ChildOrErr.getError())
+ if (EC != object_error::invalid_file_type)
+ report_error(a->getFileName(), EC);
+ if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
+ DumpObject(o);
+ else
+ report_error(a->getFileName(), object_error::invalid_file_type);
+ }
+}
+
+/// @brief Open file and figure out how to dump it.
+static void DumpInput(StringRef file) {
+
+ // If we are using the Mach-O specific object file parser, then let it parse
+ // the file and process the command line options. So the -arch flags can
+ // be used to select specific slices, etc.
+ if (MachOOpt) {
+ ParseInputMachO(file);
+ return;
+ }
+
+ // Attempt to open the binary.
+ ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
+ if (std::error_code EC = BinaryOrErr.getError())
+ report_error(file, EC);
+ Binary &Binary = *BinaryOrErr.get().getBinary();
+
+ if (Archive *a = dyn_cast<Archive>(&Binary))
+ DumpArchive(a);
+ else if (ObjectFile *o = dyn_cast<ObjectFile>(&Binary))
+ DumpObject(o);
+ else
+ report_error(file, object_error::invalid_file_type);
+}
+
+int main(int argc, char **argv) {
+ // Print a stack trace if we signal out.
+ sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+
+ // Initialize targets and assembly printers/parsers.
+ llvm::InitializeAllTargetInfos();
+ llvm::InitializeAllTargetMCs();
+ llvm::InitializeAllDisassemblers();
+
+ // Register the target printer for --version.
+ cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
+
+ cl::ParseCommandLineOptions(argc, argv, "llvm object file dumper\n");
+ TripleName = Triple::normalize(TripleName);
+
+ ToolName = argv[0];
+
+ // Defaults to a.out if no filenames specified.
+ if (InputFilenames.size() == 0)
+ InputFilenames.push_back("a.out");
+
+ if (DisassembleAll)
+ Disassemble = true;
+ if (!Disassemble
+ && !Relocations
+ && !SectionHeaders
+ && !SectionContents
+ && !SymbolTable
+ && !UnwindInfo
+ && !PrivateHeaders
+ && !ExportsTrie
+ && !Rebase
+ && !Bind
+ && !LazyBind
+ && !WeakBind
+ && !RawClangAST
+ && !(UniversalHeaders && MachOOpt)
+ && !(ArchiveHeaders && MachOOpt)
+ && !(IndirectSymbols && MachOOpt)
+ && !(DataInCode && MachOOpt)
+ && !(LinkOptHints && MachOOpt)
+ && !(InfoPlist && MachOOpt)
+ && !(DylibsUsed && MachOOpt)
+ && !(DylibId && MachOOpt)
+ && !(ObjcMetaData && MachOOpt)
+ && !(FilterSections.size() != 0 && MachOOpt)
+ && !PrintFaultMaps) {
+ cl::PrintHelpMessage();
+ return 2;
+ }
+
+ std::for_each(InputFilenames.begin(), InputFilenames.end(),
+ DumpInput);
+
+ return EXIT_SUCCESS;
+}
diff --git a/contrib/llvm/tools/llvm-objdump/llvm-objdump.h b/contrib/llvm/tools/llvm-objdump/llvm-objdump.h
new file mode 100644
index 0000000..6e8ad6b
--- /dev/null
+++ b/contrib/llvm/tools/llvm-objdump/llvm-objdump.h
@@ -0,0 +1,87 @@
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_LLVM_OBJDUMP_LLVM_OBJDUMP_H
+#define LLVM_TOOLS_LLVM_OBJDUMP_LLVM_OBJDUMP_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+namespace object {
+ class COFFObjectFile;
+ class MachOObjectFile;
+ class ObjectFile;
+ class RelocationRef;
+}
+
+extern cl::opt<std::string> TripleName;
+extern cl::opt<std::string> ArchName;
+extern cl::opt<std::string> MCPU;
+extern cl::list<std::string> MAttrs;
+extern cl::list<std::string> FilterSections;
+extern cl::opt<bool> Disassemble;
+extern cl::opt<bool> DisassembleAll;
+extern cl::opt<bool> NoShowRawInsn;
+extern cl::opt<bool> PrivateHeaders;
+extern cl::opt<bool> ExportsTrie;
+extern cl::opt<bool> Rebase;
+extern cl::opt<bool> Bind;
+extern cl::opt<bool> LazyBind;
+extern cl::opt<bool> WeakBind;
+extern cl::opt<bool> RawClangAST;
+extern cl::opt<bool> UniversalHeaders;
+extern cl::opt<bool> ArchiveHeaders;
+extern cl::opt<bool> IndirectSymbols;
+extern cl::opt<bool> DataInCode;
+extern cl::opt<bool> LinkOptHints;
+extern cl::opt<bool> InfoPlist;
+extern cl::opt<bool> DylibsUsed;
+extern cl::opt<bool> DylibId;
+extern cl::opt<bool> ObjcMetaData;
+extern cl::opt<std::string> DisSymName;
+extern cl::opt<bool> NonVerbose;
+extern cl::opt<bool> Relocations;
+extern cl::opt<bool> SectionHeaders;
+extern cl::opt<bool> SectionContents;
+extern cl::opt<bool> SymbolTable;
+extern cl::opt<bool> UnwindInfo;
+extern cl::opt<bool> PrintImmHex;
+
+// Various helper functions.
+void error(std::error_code ec);
+bool RelocAddressLess(object::RelocationRef a, object::RelocationRef b);
+void ParseInputMachO(StringRef Filename);
+void printCOFFUnwindInfo(const object::COFFObjectFile* o);
+void printMachOUnwindInfo(const object::MachOObjectFile* o);
+void printMachOExportsTrie(const object::MachOObjectFile* o);
+void printMachORebaseTable(const object::MachOObjectFile* o);
+void printMachOBindTable(const object::MachOObjectFile* o);
+void printMachOLazyBindTable(const object::MachOObjectFile* o);
+void printMachOWeakBindTable(const object::MachOObjectFile* o);
+void printELFFileHeader(const object::ObjectFile *o);
+void printCOFFFileHeader(const object::ObjectFile *o);
+void printCOFFSymbolTable(const object::COFFObjectFile *o);
+void printMachOFileHeader(const object::ObjectFile *o);
+void printExportsTrie(const object::ObjectFile *o);
+void printRebaseTable(const object::ObjectFile *o);
+void printBindTable(const object::ObjectFile *o);
+void printLazyBindTable(const object::ObjectFile *o);
+void printWeakBindTable(const object::ObjectFile *o);
+void printRawClangAST(const object::ObjectFile *o);
+void PrintRelocations(const object::ObjectFile *o);
+void PrintSectionHeaders(const object::ObjectFile *o);
+void PrintSectionContents(const object::ObjectFile *o);
+void PrintSymbolTable(const object::ObjectFile *o);
+LLVM_ATTRIBUTE_NORETURN void report_error(StringRef File, std::error_code EC);
+
+} // end namespace llvm
+
+#endif
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