| File: | build/source/llvm/tools/llvm-objdump/MachODump.cpp |
| Warning: | line 5731, column 3 Value stored to 'name' is never read |
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| 1 | //===-- MachODump.cpp - Object file dumping utility for llvm --------------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file implements the MachO-specific dumper for llvm-objdump. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "MachODump.h" |
| 14 | |
| 15 | #include "ObjdumpOptID.h" |
| 16 | #include "llvm-objdump.h" |
| 17 | #include "llvm-c/Disassembler.h" |
| 18 | #include "llvm/ADT/STLExtras.h" |
| 19 | #include "llvm/ADT/StringExtras.h" |
| 20 | #include "llvm/BinaryFormat/MachO.h" |
| 21 | #include "llvm/Config/config.h" |
| 22 | #include "llvm/DebugInfo/DIContext.h" |
| 23 | #include "llvm/DebugInfo/DWARF/DWARFContext.h" |
| 24 | #include "llvm/Demangle/Demangle.h" |
| 25 | #include "llvm/MC/MCAsmInfo.h" |
| 26 | #include "llvm/MC/MCContext.h" |
| 27 | #include "llvm/MC/MCDisassembler/MCDisassembler.h" |
| 28 | #include "llvm/MC/MCInst.h" |
| 29 | #include "llvm/MC/MCInstPrinter.h" |
| 30 | #include "llvm/MC/MCInstrDesc.h" |
| 31 | #include "llvm/MC/MCInstrInfo.h" |
| 32 | #include "llvm/MC/MCRegisterInfo.h" |
| 33 | #include "llvm/MC/MCSubtargetInfo.h" |
| 34 | #include "llvm/MC/MCTargetOptions.h" |
| 35 | #include "llvm/MC/TargetRegistry.h" |
| 36 | #include "llvm/Object/MachO.h" |
| 37 | #include "llvm/Object/MachOUniversal.h" |
| 38 | #include "llvm/Option/ArgList.h" |
| 39 | #include "llvm/Support/Casting.h" |
| 40 | #include "llvm/Support/Debug.h" |
| 41 | #include "llvm/Support/Endian.h" |
| 42 | #include "llvm/Support/Format.h" |
| 43 | #include "llvm/Support/FormattedStream.h" |
| 44 | #include "llvm/Support/GraphWriter.h" |
| 45 | #include "llvm/Support/LEB128.h" |
| 46 | #include "llvm/Support/MemoryBuffer.h" |
| 47 | #include "llvm/Support/TargetSelect.h" |
| 48 | #include "llvm/Support/ToolOutputFile.h" |
| 49 | #include "llvm/Support/WithColor.h" |
| 50 | #include "llvm/Support/raw_ostream.h" |
| 51 | #include "llvm/TargetParser/Triple.h" |
| 52 | #include <algorithm> |
| 53 | #include <cstring> |
| 54 | #include <system_error> |
| 55 | |
| 56 | #ifdef LLVM_HAVE_LIBXAR |
| 57 | extern "C" { |
| 58 | #include <xar/xar.h> |
| 59 | } |
| 60 | #endif |
| 61 | |
| 62 | using namespace llvm; |
| 63 | using namespace llvm::object; |
| 64 | using namespace llvm::objdump; |
| 65 | |
| 66 | bool objdump::FirstPrivateHeader; |
| 67 | bool objdump::ExportsTrie; |
| 68 | bool objdump::Rebase; |
| 69 | bool objdump::Rpaths; |
| 70 | bool objdump::Bind; |
| 71 | bool objdump::LazyBind; |
| 72 | bool objdump::WeakBind; |
| 73 | static bool UseDbg; |
| 74 | static std::string DSYMFile; |
| 75 | bool objdump::FullLeadingAddr; |
| 76 | bool objdump::LeadingHeaders; |
| 77 | bool objdump::UniversalHeaders; |
| 78 | static bool ArchiveMemberOffsets; |
| 79 | bool objdump::IndirectSymbols; |
| 80 | bool objdump::DataInCode; |
| 81 | FunctionStartsMode objdump::FunctionStartsType = |
| 82 | objdump::FunctionStartsMode::None; |
| 83 | bool objdump::LinkOptHints; |
| 84 | bool objdump::InfoPlist; |
| 85 | bool objdump::ChainedFixups; |
| 86 | bool objdump::DyldInfo; |
| 87 | bool objdump::DylibsUsed; |
| 88 | bool objdump::DylibId; |
| 89 | bool objdump::Verbose; |
| 90 | bool objdump::ObjcMetaData; |
| 91 | std::string objdump::DisSymName; |
| 92 | bool objdump::SymbolicOperands; |
| 93 | static std::vector<std::string> ArchFlags; |
| 94 | |
| 95 | static bool ArchAll = false; |
| 96 | static std::string ThumbTripleName; |
| 97 | |
| 98 | static StringRef ordinalName(const object::MachOObjectFile *, int); |
| 99 | |
| 100 | void objdump::parseMachOOptions(const llvm::opt::InputArgList &InputArgs) { |
| 101 | FirstPrivateHeader = InputArgs.hasArg(OBJDUMP_private_header); |
| 102 | ExportsTrie = InputArgs.hasArg(OBJDUMP_exports_trie); |
| 103 | Rebase = InputArgs.hasArg(OBJDUMP_rebase); |
| 104 | Rpaths = InputArgs.hasArg(OBJDUMP_rpaths); |
| 105 | Bind = InputArgs.hasArg(OBJDUMP_bind); |
| 106 | LazyBind = InputArgs.hasArg(OBJDUMP_lazy_bind); |
| 107 | WeakBind = InputArgs.hasArg(OBJDUMP_weak_bind); |
| 108 | UseDbg = InputArgs.hasArg(OBJDUMP_g); |
| 109 | DSYMFile = InputArgs.getLastArgValue(OBJDUMP_dsym_EQ).str(); |
| 110 | FullLeadingAddr = InputArgs.hasArg(OBJDUMP_full_leading_addr); |
| 111 | LeadingHeaders = !InputArgs.hasArg(OBJDUMP_no_leading_headers); |
| 112 | UniversalHeaders = InputArgs.hasArg(OBJDUMP_universal_headers); |
| 113 | ArchiveMemberOffsets = InputArgs.hasArg(OBJDUMP_archive_member_offsets); |
| 114 | IndirectSymbols = InputArgs.hasArg(OBJDUMP_indirect_symbols); |
| 115 | DataInCode = InputArgs.hasArg(OBJDUMP_data_in_code); |
| 116 | if (const opt::Arg *A = InputArgs.getLastArg(OBJDUMP_function_starts_EQ)) { |
| 117 | FunctionStartsType = StringSwitch<FunctionStartsMode>(A->getValue()) |
| 118 | .Case("addrs", FunctionStartsMode::Addrs) |
| 119 | .Case("names", FunctionStartsMode::Names) |
| 120 | .Case("both", FunctionStartsMode::Both) |
| 121 | .Default(FunctionStartsMode::None); |
| 122 | if (FunctionStartsType == FunctionStartsMode::None) |
| 123 | invalidArgValue(A); |
| 124 | } |
| 125 | LinkOptHints = InputArgs.hasArg(OBJDUMP_link_opt_hints); |
| 126 | InfoPlist = InputArgs.hasArg(OBJDUMP_info_plist); |
| 127 | ChainedFixups = InputArgs.hasArg(OBJDUMP_chained_fixups); |
| 128 | DyldInfo = InputArgs.hasArg(OBJDUMP_dyld_info); |
| 129 | DylibsUsed = InputArgs.hasArg(OBJDUMP_dylibs_used); |
| 130 | DylibId = InputArgs.hasArg(OBJDUMP_dylib_id); |
| 131 | Verbose = !InputArgs.hasArg(OBJDUMP_non_verbose); |
| 132 | ObjcMetaData = InputArgs.hasArg(OBJDUMP_objc_meta_data); |
| 133 | DisSymName = InputArgs.getLastArgValue(OBJDUMP_dis_symname).str(); |
| 134 | SymbolicOperands = !InputArgs.hasArg(OBJDUMP_no_symbolic_operands); |
| 135 | ArchFlags = InputArgs.getAllArgValues(OBJDUMP_arch_EQ); |
| 136 | } |
| 137 | |
| 138 | static const Target *GetTarget(const MachOObjectFile *MachOObj, |
| 139 | const char **McpuDefault, |
| 140 | const Target **ThumbTarget) { |
| 141 | // Figure out the target triple. |
| 142 | Triple TT(TripleName); |
| 143 | if (TripleName.empty()) { |
| 144 | TT = MachOObj->getArchTriple(McpuDefault); |
| 145 | TripleName = TT.str(); |
| 146 | } |
| 147 | |
| 148 | if (TT.getArch() == Triple::arm) { |
| 149 | // We've inferred a 32-bit ARM target from the object file. All MachO CPUs |
| 150 | // that support ARM are also capable of Thumb mode. |
| 151 | Triple ThumbTriple = TT; |
| 152 | std::string ThumbName = (Twine("thumb") + TT.getArchName().substr(3)).str(); |
| 153 | ThumbTriple.setArchName(ThumbName); |
| 154 | ThumbTripleName = ThumbTriple.str(); |
| 155 | } |
| 156 | |
| 157 | // Get the target specific parser. |
| 158 | std::string Error; |
| 159 | const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); |
| 160 | if (TheTarget && ThumbTripleName.empty()) |
| 161 | return TheTarget; |
| 162 | |
| 163 | *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error); |
| 164 | if (*ThumbTarget) |
| 165 | return TheTarget; |
| 166 | |
| 167 | WithColor::error(errs(), "llvm-objdump") << "unable to get target for '"; |
| 168 | if (!TheTarget) |
| 169 | errs() << TripleName; |
| 170 | else |
| 171 | errs() << ThumbTripleName; |
| 172 | errs() << "', see --version and --triple.\n"; |
| 173 | return nullptr; |
| 174 | } |
| 175 | |
| 176 | namespace { |
| 177 | struct SymbolSorter { |
| 178 | bool operator()(const SymbolRef &A, const SymbolRef &B) { |
| 179 | Expected<SymbolRef::Type> ATypeOrErr = A.getType(); |
| 180 | if (!ATypeOrErr) |
| 181 | reportError(ATypeOrErr.takeError(), A.getObject()->getFileName()); |
| 182 | SymbolRef::Type AType = *ATypeOrErr; |
| 183 | Expected<SymbolRef::Type> BTypeOrErr = B.getType(); |
| 184 | if (!BTypeOrErr) |
| 185 | reportError(BTypeOrErr.takeError(), B.getObject()->getFileName()); |
| 186 | SymbolRef::Type BType = *BTypeOrErr; |
| 187 | uint64_t AAddr = |
| 188 | (AType != SymbolRef::ST_Function) ? 0 : cantFail(A.getValue()); |
| 189 | uint64_t BAddr = |
| 190 | (BType != SymbolRef::ST_Function) ? 0 : cantFail(B.getValue()); |
| 191 | return AAddr < BAddr; |
| 192 | } |
| 193 | }; |
| 194 | } // namespace |
| 195 | |
| 196 | // Types for the storted data in code table that is built before disassembly |
| 197 | // and the predicate function to sort them. |
| 198 | typedef std::pair<uint64_t, DiceRef> DiceTableEntry; |
| 199 | typedef std::vector<DiceTableEntry> DiceTable; |
| 200 | typedef DiceTable::iterator dice_table_iterator; |
| 201 | |
| 202 | #ifdef LLVM_HAVE_LIBXAR |
| 203 | namespace { |
| 204 | struct ScopedXarFile { |
| 205 | xar_t xar; |
| 206 | ScopedXarFile(const char *filename, int32_t flags) { |
| 207 | #pragma clang diagnostic push |
| 208 | #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| 209 | xar = xar_open(filename, flags); |
| 210 | #pragma clang diagnostic pop |
| 211 | } |
| 212 | ~ScopedXarFile() { |
| 213 | if (xar) |
| 214 | xar_close(xar); |
| 215 | } |
| 216 | ScopedXarFile(const ScopedXarFile &) = delete; |
| 217 | ScopedXarFile &operator=(const ScopedXarFile &) = delete; |
| 218 | operator xar_t() { return xar; } |
| 219 | }; |
| 220 | |
| 221 | struct ScopedXarIter { |
| 222 | xar_iter_t iter; |
| 223 | ScopedXarIter() : iter(xar_iter_new()) {} |
| 224 | ~ScopedXarIter() { |
| 225 | if (iter) |
| 226 | xar_iter_free(iter); |
| 227 | } |
| 228 | ScopedXarIter(const ScopedXarIter &) = delete; |
| 229 | ScopedXarIter &operator=(const ScopedXarIter &) = delete; |
| 230 | operator xar_iter_t() { return iter; } |
| 231 | }; |
| 232 | } // namespace |
| 233 | #endif // defined(LLVM_HAVE_LIBXAR) |
| 234 | |
| 235 | // This is used to search for a data in code table entry for the PC being |
| 236 | // disassembled. The j parameter has the PC in j.first. A single data in code |
| 237 | // table entry can cover many bytes for each of its Kind's. So if the offset, |
| 238 | // aka the i.first value, of the data in code table entry plus its Length |
| 239 | // covers the PC being searched for this will return true. If not it will |
| 240 | // return false. |
| 241 | static bool compareDiceTableEntries(const DiceTableEntry &i, |
| 242 | const DiceTableEntry &j) { |
| 243 | uint16_t Length; |
| 244 | i.second.getLength(Length); |
| 245 | |
| 246 | return j.first >= i.first && j.first < i.first + Length; |
| 247 | } |
| 248 | |
| 249 | static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length, |
| 250 | unsigned short Kind) { |
| 251 | uint32_t Value, Size = 1; |
| 252 | |
| 253 | switch (Kind) { |
| 254 | default: |
| 255 | case MachO::DICE_KIND_DATA: |
| 256 | if (Length >= 4) { |
| 257 | if (ShowRawInsn) |
| 258 | dumpBytes(ArrayRef(bytes, 4), outs()); |
| 259 | Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; |
| 260 | outs() << "\t.long " << Value; |
| 261 | Size = 4; |
| 262 | } else if (Length >= 2) { |
| 263 | if (ShowRawInsn) |
| 264 | dumpBytes(ArrayRef(bytes, 2), outs()); |
| 265 | Value = bytes[1] << 8 | bytes[0]; |
| 266 | outs() << "\t.short " << Value; |
| 267 | Size = 2; |
| 268 | } else { |
| 269 | if (ShowRawInsn) |
| 270 | dumpBytes(ArrayRef(bytes, 2), outs()); |
| 271 | Value = bytes[0]; |
| 272 | outs() << "\t.byte " << Value; |
| 273 | Size = 1; |
| 274 | } |
| 275 | if (Kind == MachO::DICE_KIND_DATA) |
| 276 | outs() << "\t@ KIND_DATA\n"; |
| 277 | else |
| 278 | outs() << "\t@ data in code kind = " << Kind << "\n"; |
| 279 | break; |
| 280 | case MachO::DICE_KIND_JUMP_TABLE8: |
| 281 | if (ShowRawInsn) |
| 282 | dumpBytes(ArrayRef(bytes, 1), outs()); |
| 283 | Value = bytes[0]; |
| 284 | outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n"; |
| 285 | Size = 1; |
| 286 | break; |
| 287 | case MachO::DICE_KIND_JUMP_TABLE16: |
| 288 | if (ShowRawInsn) |
| 289 | dumpBytes(ArrayRef(bytes, 2), outs()); |
| 290 | Value = bytes[1] << 8 | bytes[0]; |
| 291 | outs() << "\t.short " << format("%5u", Value & 0xffff) |
| 292 | << "\t@ KIND_JUMP_TABLE16\n"; |
| 293 | Size = 2; |
| 294 | break; |
| 295 | case MachO::DICE_KIND_JUMP_TABLE32: |
| 296 | case MachO::DICE_KIND_ABS_JUMP_TABLE32: |
| 297 | if (ShowRawInsn) |
| 298 | dumpBytes(ArrayRef(bytes, 4), outs()); |
| 299 | Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; |
| 300 | outs() << "\t.long " << Value; |
| 301 | if (Kind == MachO::DICE_KIND_JUMP_TABLE32) |
| 302 | outs() << "\t@ KIND_JUMP_TABLE32\n"; |
| 303 | else |
| 304 | outs() << "\t@ KIND_ABS_JUMP_TABLE32\n"; |
| 305 | Size = 4; |
| 306 | break; |
| 307 | } |
| 308 | return Size; |
| 309 | } |
| 310 | |
| 311 | static void getSectionsAndSymbols(MachOObjectFile *MachOObj, |
| 312 | std::vector<SectionRef> &Sections, |
| 313 | std::vector<SymbolRef> &Symbols, |
| 314 | SmallVectorImpl<uint64_t> &FoundFns, |
| 315 | uint64_t &BaseSegmentAddress) { |
| 316 | const StringRef FileName = MachOObj->getFileName(); |
| 317 | for (const SymbolRef &Symbol : MachOObj->symbols()) { |
| 318 | StringRef SymName = unwrapOrError(Symbol.getName(), FileName); |
| 319 | if (!SymName.startswith("ltmp")) |
| 320 | Symbols.push_back(Symbol); |
| 321 | } |
| 322 | |
| 323 | append_range(Sections, MachOObj->sections()); |
| 324 | |
| 325 | bool BaseSegmentAddressSet = false; |
| 326 | for (const auto &Command : MachOObj->load_commands()) { |
| 327 | if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) { |
| 328 | // We found a function starts segment, parse the addresses for later |
| 329 | // consumption. |
| 330 | MachO::linkedit_data_command LLC = |
| 331 | MachOObj->getLinkeditDataLoadCommand(Command); |
| 332 | |
| 333 | MachOObj->ReadULEB128s(LLC.dataoff, FoundFns); |
| 334 | } else if (Command.C.cmd == MachO::LC_SEGMENT) { |
| 335 | MachO::segment_command SLC = MachOObj->getSegmentLoadCommand(Command); |
| 336 | StringRef SegName = SLC.segname; |
| 337 | if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") { |
| 338 | BaseSegmentAddressSet = true; |
| 339 | BaseSegmentAddress = SLC.vmaddr; |
| 340 | } |
| 341 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
| 342 | MachO::segment_command_64 SLC = MachOObj->getSegment64LoadCommand(Command); |
| 343 | StringRef SegName = SLC.segname; |
| 344 | if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") { |
| 345 | BaseSegmentAddressSet = true; |
| 346 | BaseSegmentAddress = SLC.vmaddr; |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | static bool DumpAndSkipDataInCode(uint64_t PC, const uint8_t *bytes, |
| 353 | DiceTable &Dices, uint64_t &InstSize) { |
| 354 | // Check the data in code table here to see if this is data not an |
| 355 | // instruction to be disassembled. |
| 356 | DiceTable Dice; |
| 357 | Dice.push_back(std::make_pair(PC, DiceRef())); |
| 358 | dice_table_iterator DTI = |
| 359 | std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(), |
| 360 | compareDiceTableEntries); |
| 361 | if (DTI != Dices.end()) { |
| 362 | uint16_t Length; |
| 363 | DTI->second.getLength(Length); |
| 364 | uint16_t Kind; |
| 365 | DTI->second.getKind(Kind); |
| 366 | InstSize = DumpDataInCode(bytes, Length, Kind); |
| 367 | if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) && |
| 368 | (PC == (DTI->first + Length - 1)) && (Length & 1)) |
| 369 | InstSize++; |
| 370 | return true; |
| 371 | } |
| 372 | return false; |
| 373 | } |
| 374 | |
| 375 | static void printRelocationTargetName(const MachOObjectFile *O, |
| 376 | const MachO::any_relocation_info &RE, |
| 377 | raw_string_ostream &Fmt) { |
| 378 | // Target of a scattered relocation is an address. In the interest of |
| 379 | // generating pretty output, scan through the symbol table looking for a |
| 380 | // symbol that aligns with that address. If we find one, print it. |
| 381 | // Otherwise, we just print the hex address of the target. |
| 382 | const StringRef FileName = O->getFileName(); |
| 383 | if (O->isRelocationScattered(RE)) { |
| 384 | uint32_t Val = O->getPlainRelocationSymbolNum(RE); |
| 385 | |
| 386 | for (const SymbolRef &Symbol : O->symbols()) { |
| 387 | uint64_t Addr = unwrapOrError(Symbol.getAddress(), FileName); |
| 388 | if (Addr != Val) |
| 389 | continue; |
| 390 | Fmt << unwrapOrError(Symbol.getName(), FileName); |
| 391 | return; |
| 392 | } |
| 393 | |
| 394 | // If we couldn't find a symbol that this relocation refers to, try |
| 395 | // to find a section beginning instead. |
| 396 | for (const SectionRef &Section : ToolSectionFilter(*O)) { |
| 397 | uint64_t Addr = Section.getAddress(); |
| 398 | if (Addr != Val) |
| 399 | continue; |
| 400 | StringRef NameOrErr = unwrapOrError(Section.getName(), O->getFileName()); |
| 401 | Fmt << NameOrErr; |
| 402 | return; |
| 403 | } |
| 404 | |
| 405 | Fmt << format("0x%x", Val); |
| 406 | return; |
| 407 | } |
| 408 | |
| 409 | StringRef S; |
| 410 | bool isExtern = O->getPlainRelocationExternal(RE); |
| 411 | uint64_t Val = O->getPlainRelocationSymbolNum(RE); |
| 412 | |
| 413 | if (O->getAnyRelocationType(RE) == MachO::ARM64_RELOC_ADDEND && |
| 414 | (O->getArch() == Triple::aarch64 || O->getArch() == Triple::aarch64_be)) { |
| 415 | Fmt << format("0x%0" PRIx64"l" "x", Val); |
| 416 | return; |
| 417 | } |
| 418 | |
| 419 | if (isExtern) { |
| 420 | symbol_iterator SI = O->symbol_begin(); |
| 421 | std::advance(SI, Val); |
| 422 | S = unwrapOrError(SI->getName(), FileName); |
| 423 | } else { |
| 424 | section_iterator SI = O->section_begin(); |
| 425 | // Adjust for the fact that sections are 1-indexed. |
| 426 | if (Val == 0) { |
| 427 | Fmt << "0 (?,?)"; |
| 428 | return; |
| 429 | } |
| 430 | uint32_t I = Val - 1; |
| 431 | while (I != 0 && SI != O->section_end()) { |
| 432 | --I; |
| 433 | std::advance(SI, 1); |
| 434 | } |
| 435 | if (SI == O->section_end()) { |
| 436 | Fmt << Val << " (?,?)"; |
| 437 | } else { |
| 438 | if (Expected<StringRef> NameOrErr = SI->getName()) |
| 439 | S = *NameOrErr; |
| 440 | else |
| 441 | consumeError(NameOrErr.takeError()); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | Fmt << S; |
| 446 | } |
| 447 | |
| 448 | Error objdump::getMachORelocationValueString(const MachOObjectFile *Obj, |
| 449 | const RelocationRef &RelRef, |
| 450 | SmallVectorImpl<char> &Result) { |
| 451 | DataRefImpl Rel = RelRef.getRawDataRefImpl(); |
| 452 | MachO::any_relocation_info RE = Obj->getRelocation(Rel); |
| 453 | |
| 454 | unsigned Arch = Obj->getArch(); |
| 455 | |
| 456 | std::string FmtBuf; |
| 457 | raw_string_ostream Fmt(FmtBuf); |
| 458 | unsigned Type = Obj->getAnyRelocationType(RE); |
| 459 | bool IsPCRel = Obj->getAnyRelocationPCRel(RE); |
| 460 | |
| 461 | // Determine any addends that should be displayed with the relocation. |
| 462 | // These require decoding the relocation type, which is triple-specific. |
| 463 | |
| 464 | // X86_64 has entirely custom relocation types. |
| 465 | if (Arch == Triple::x86_64) { |
| 466 | switch (Type) { |
| 467 | case MachO::X86_64_RELOC_GOT_LOAD: |
| 468 | case MachO::X86_64_RELOC_GOT: { |
| 469 | printRelocationTargetName(Obj, RE, Fmt); |
| 470 | Fmt << "@GOT"; |
| 471 | if (IsPCRel) |
| 472 | Fmt << "PCREL"; |
| 473 | break; |
| 474 | } |
| 475 | case MachO::X86_64_RELOC_SUBTRACTOR: { |
| 476 | DataRefImpl RelNext = Rel; |
| 477 | Obj->moveRelocationNext(RelNext); |
| 478 | MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); |
| 479 | |
| 480 | // X86_64_RELOC_SUBTRACTOR must be followed by a relocation of type |
| 481 | // X86_64_RELOC_UNSIGNED. |
| 482 | // NOTE: Scattered relocations don't exist on x86_64. |
| 483 | unsigned RType = Obj->getAnyRelocationType(RENext); |
| 484 | if (RType != MachO::X86_64_RELOC_UNSIGNED) |
| 485 | reportError(Obj->getFileName(), "Expected X86_64_RELOC_UNSIGNED after " |
| 486 | "X86_64_RELOC_SUBTRACTOR."); |
| 487 | |
| 488 | // The X86_64_RELOC_UNSIGNED contains the minuend symbol; |
| 489 | // X86_64_RELOC_SUBTRACTOR contains the subtrahend. |
| 490 | printRelocationTargetName(Obj, RENext, Fmt); |
| 491 | Fmt << "-"; |
| 492 | printRelocationTargetName(Obj, RE, Fmt); |
| 493 | break; |
| 494 | } |
| 495 | case MachO::X86_64_RELOC_TLV: |
| 496 | printRelocationTargetName(Obj, RE, Fmt); |
| 497 | Fmt << "@TLV"; |
| 498 | if (IsPCRel) |
| 499 | Fmt << "P"; |
| 500 | break; |
| 501 | case MachO::X86_64_RELOC_SIGNED_1: |
| 502 | printRelocationTargetName(Obj, RE, Fmt); |
| 503 | Fmt << "-1"; |
| 504 | break; |
| 505 | case MachO::X86_64_RELOC_SIGNED_2: |
| 506 | printRelocationTargetName(Obj, RE, Fmt); |
| 507 | Fmt << "-2"; |
| 508 | break; |
| 509 | case MachO::X86_64_RELOC_SIGNED_4: |
| 510 | printRelocationTargetName(Obj, RE, Fmt); |
| 511 | Fmt << "-4"; |
| 512 | break; |
| 513 | default: |
| 514 | printRelocationTargetName(Obj, RE, Fmt); |
| 515 | break; |
| 516 | } |
| 517 | // X86 and ARM share some relocation types in common. |
| 518 | } else if (Arch == Triple::x86 || Arch == Triple::arm || |
| 519 | Arch == Triple::ppc) { |
| 520 | // Generic relocation types... |
| 521 | switch (Type) { |
| 522 | case MachO::GENERIC_RELOC_PAIR: // prints no info |
| 523 | return Error::success(); |
| 524 | case MachO::GENERIC_RELOC_SECTDIFF: { |
| 525 | DataRefImpl RelNext = Rel; |
| 526 | Obj->moveRelocationNext(RelNext); |
| 527 | MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); |
| 528 | |
| 529 | // X86 sect diff's must be followed by a relocation of type |
| 530 | // GENERIC_RELOC_PAIR. |
| 531 | unsigned RType = Obj->getAnyRelocationType(RENext); |
| 532 | |
| 533 | if (RType != MachO::GENERIC_RELOC_PAIR) |
| 534 | reportError(Obj->getFileName(), "Expected GENERIC_RELOC_PAIR after " |
| 535 | "GENERIC_RELOC_SECTDIFF."); |
| 536 | |
| 537 | printRelocationTargetName(Obj, RE, Fmt); |
| 538 | Fmt << "-"; |
| 539 | printRelocationTargetName(Obj, RENext, Fmt); |
| 540 | break; |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | if (Arch == Triple::x86 || Arch == Triple::ppc) { |
| 545 | switch (Type) { |
| 546 | case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: { |
| 547 | DataRefImpl RelNext = Rel; |
| 548 | Obj->moveRelocationNext(RelNext); |
| 549 | MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); |
| 550 | |
| 551 | // X86 sect diff's must be followed by a relocation of type |
| 552 | // GENERIC_RELOC_PAIR. |
| 553 | unsigned RType = Obj->getAnyRelocationType(RENext); |
| 554 | if (RType != MachO::GENERIC_RELOC_PAIR) |
| 555 | reportError(Obj->getFileName(), "Expected GENERIC_RELOC_PAIR after " |
| 556 | "GENERIC_RELOC_LOCAL_SECTDIFF."); |
| 557 | |
| 558 | printRelocationTargetName(Obj, RE, Fmt); |
| 559 | Fmt << "-"; |
| 560 | printRelocationTargetName(Obj, RENext, Fmt); |
| 561 | break; |
| 562 | } |
| 563 | case MachO::GENERIC_RELOC_TLV: { |
| 564 | printRelocationTargetName(Obj, RE, Fmt); |
| 565 | Fmt << "@TLV"; |
| 566 | if (IsPCRel) |
| 567 | Fmt << "P"; |
| 568 | break; |
| 569 | } |
| 570 | default: |
| 571 | printRelocationTargetName(Obj, RE, Fmt); |
| 572 | } |
| 573 | } else { // ARM-specific relocations |
| 574 | switch (Type) { |
| 575 | case MachO::ARM_RELOC_HALF: |
| 576 | case MachO::ARM_RELOC_HALF_SECTDIFF: { |
| 577 | // Half relocations steal a bit from the length field to encode |
| 578 | // whether this is an upper16 or a lower16 relocation. |
| 579 | bool isUpper = (Obj->getAnyRelocationLength(RE) & 0x1) == 1; |
| 580 | |
| 581 | if (isUpper) |
| 582 | Fmt << ":upper16:("; |
| 583 | else |
| 584 | Fmt << ":lower16:("; |
| 585 | printRelocationTargetName(Obj, RE, Fmt); |
| 586 | |
| 587 | DataRefImpl RelNext = Rel; |
| 588 | Obj->moveRelocationNext(RelNext); |
| 589 | MachO::any_relocation_info RENext = Obj->getRelocation(RelNext); |
| 590 | |
| 591 | // ARM half relocs must be followed by a relocation of type |
| 592 | // ARM_RELOC_PAIR. |
| 593 | unsigned RType = Obj->getAnyRelocationType(RENext); |
| 594 | if (RType != MachO::ARM_RELOC_PAIR) |
| 595 | reportError(Obj->getFileName(), "Expected ARM_RELOC_PAIR after " |
| 596 | "ARM_RELOC_HALF"); |
| 597 | |
| 598 | // NOTE: The half of the target virtual address is stashed in the |
| 599 | // address field of the secondary relocation, but we can't reverse |
| 600 | // engineer the constant offset from it without decoding the movw/movt |
| 601 | // instruction to find the other half in its immediate field. |
| 602 | |
| 603 | // ARM_RELOC_HALF_SECTDIFF encodes the second section in the |
| 604 | // symbol/section pointer of the follow-on relocation. |
| 605 | if (Type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
| 606 | Fmt << "-"; |
| 607 | printRelocationTargetName(Obj, RENext, Fmt); |
| 608 | } |
| 609 | |
| 610 | Fmt << ")"; |
| 611 | break; |
| 612 | } |
| 613 | default: { |
| 614 | printRelocationTargetName(Obj, RE, Fmt); |
| 615 | } |
| 616 | } |
| 617 | } |
| 618 | } else |
| 619 | printRelocationTargetName(Obj, RE, Fmt); |
| 620 | |
| 621 | Fmt.flush(); |
| 622 | Result.append(FmtBuf.begin(), FmtBuf.end()); |
| 623 | return Error::success(); |
| 624 | } |
| 625 | |
| 626 | static void PrintIndirectSymbolTable(MachOObjectFile *O, bool verbose, |
| 627 | uint32_t n, uint32_t count, |
| 628 | uint32_t stride, uint64_t addr) { |
| 629 | MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
| 630 | uint32_t nindirectsyms = Dysymtab.nindirectsyms; |
| 631 | if (n > nindirectsyms) |
| 632 | outs() << " (entries start past the end of the indirect symbol " |
| 633 | "table) (reserved1 field greater than the table size)"; |
| 634 | else if (n + count > nindirectsyms) |
| 635 | outs() << " (entries extends past the end of the indirect symbol " |
| 636 | "table)"; |
| 637 | outs() << "\n"; |
| 638 | uint32_t cputype = O->getHeader().cputype; |
| 639 | if (cputype & MachO::CPU_ARCH_ABI64) |
| 640 | outs() << "address index"; |
| 641 | else |
| 642 | outs() << "address index"; |
| 643 | if (verbose) |
| 644 | outs() << " name\n"; |
| 645 | else |
| 646 | outs() << "\n"; |
| 647 | for (uint32_t j = 0; j < count && n + j < nindirectsyms; j++) { |
| 648 | if (cputype & MachO::CPU_ARCH_ABI64) |
| 649 | outs() << format("0x%016" PRIx64"l" "x", addr + j * stride) << " "; |
| 650 | else |
| 651 | outs() << format("0x%08" PRIx32"x", (uint32_t)addr + j * stride) << " "; |
| 652 | MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
| 653 | uint32_t indirect_symbol = O->getIndirectSymbolTableEntry(Dysymtab, n + j); |
| 654 | if (indirect_symbol == MachO::INDIRECT_SYMBOL_LOCAL) { |
| 655 | outs() << "LOCAL\n"; |
| 656 | continue; |
| 657 | } |
| 658 | if (indirect_symbol == |
| 659 | (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) { |
| 660 | outs() << "LOCAL ABSOLUTE\n"; |
| 661 | continue; |
| 662 | } |
| 663 | if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) { |
| 664 | outs() << "ABSOLUTE\n"; |
| 665 | continue; |
| 666 | } |
| 667 | outs() << format("%5u ", indirect_symbol); |
| 668 | if (verbose) { |
| 669 | MachO::symtab_command Symtab = O->getSymtabLoadCommand(); |
| 670 | if (indirect_symbol < Symtab.nsyms) { |
| 671 | symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol); |
| 672 | SymbolRef Symbol = *Sym; |
| 673 | outs() << unwrapOrError(Symbol.getName(), O->getFileName()); |
| 674 | } else { |
| 675 | outs() << "?"; |
| 676 | } |
| 677 | } |
| 678 | outs() << "\n"; |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) { |
| 683 | for (const auto &Load : O->load_commands()) { |
| 684 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
| 685 | MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); |
| 686 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 687 | MachO::section_64 Sec = O->getSection64(Load, J); |
| 688 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
| 689 | if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
| 690 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
| 691 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
| 692 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
| 693 | section_type == MachO::S_SYMBOL_STUBS) { |
| 694 | uint32_t stride; |
| 695 | if (section_type == MachO::S_SYMBOL_STUBS) |
| 696 | stride = Sec.reserved2; |
| 697 | else |
| 698 | stride = 8; |
| 699 | if (stride == 0) { |
| 700 | outs() << "Can't print indirect symbols for (" << Sec.segname << "," |
| 701 | << Sec.sectname << ") " |
| 702 | << "(size of stubs in reserved2 field is zero)\n"; |
| 703 | continue; |
| 704 | } |
| 705 | uint32_t count = Sec.size / stride; |
| 706 | outs() << "Indirect symbols for (" << Sec.segname << "," |
| 707 | << Sec.sectname << ") " << count << " entries"; |
| 708 | uint32_t n = Sec.reserved1; |
| 709 | PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); |
| 710 | } |
| 711 | } |
| 712 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
| 713 | MachO::segment_command Seg = O->getSegmentLoadCommand(Load); |
| 714 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 715 | MachO::section Sec = O->getSection(Load, J); |
| 716 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
| 717 | if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
| 718 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
| 719 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
| 720 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
| 721 | section_type == MachO::S_SYMBOL_STUBS) { |
| 722 | uint32_t stride; |
| 723 | if (section_type == MachO::S_SYMBOL_STUBS) |
| 724 | stride = Sec.reserved2; |
| 725 | else |
| 726 | stride = 4; |
| 727 | if (stride == 0) { |
| 728 | outs() << "Can't print indirect symbols for (" << Sec.segname << "," |
| 729 | << Sec.sectname << ") " |
| 730 | << "(size of stubs in reserved2 field is zero)\n"; |
| 731 | continue; |
| 732 | } |
| 733 | uint32_t count = Sec.size / stride; |
| 734 | outs() << "Indirect symbols for (" << Sec.segname << "," |
| 735 | << Sec.sectname << ") " << count << " entries"; |
| 736 | uint32_t n = Sec.reserved1; |
| 737 | PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); |
| 738 | } |
| 739 | } |
| 740 | } |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | static void PrintRType(const uint64_t cputype, const unsigned r_type) { |
| 745 | static char const *generic_r_types[] = { |
| 746 | "VANILLA ", "PAIR ", "SECTDIF ", "PBLAPTR ", "LOCSDIF ", "TLV ", |
| 747 | " 6 (?) ", " 7 (?) ", " 8 (?) ", " 9 (?) ", " 10 (?) ", " 11 (?) ", |
| 748 | " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
| 749 | }; |
| 750 | static char const *x86_64_r_types[] = { |
| 751 | "UNSIGND ", "SIGNED ", "BRANCH ", "GOT_LD ", "GOT ", "SUB ", |
| 752 | "SIGNED1 ", "SIGNED2 ", "SIGNED4 ", "TLV ", " 10 (?) ", " 11 (?) ", |
| 753 | " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
| 754 | }; |
| 755 | static char const *arm_r_types[] = { |
| 756 | "VANILLA ", "PAIR ", "SECTDIFF", "LOCSDIF ", "PBLAPTR ", |
| 757 | "BR24 ", "T_BR22 ", "T_BR32 ", "HALF ", "HALFDIF ", |
| 758 | " 10 (?) ", " 11 (?) ", " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
| 759 | }; |
| 760 | static char const *arm64_r_types[] = { |
| 761 | "UNSIGND ", "SUB ", "BR26 ", "PAGE21 ", "PAGOF12 ", |
| 762 | "GOTLDP ", "GOTLDPOF", "PTRTGOT ", "TLVLDP ", "TLVLDPOF", |
| 763 | "ADDEND ", " 11 (?) ", " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
| 764 | }; |
| 765 | |
| 766 | if (r_type > 0xf){ |
| 767 | outs() << format("%-7u", r_type) << " "; |
| 768 | return; |
| 769 | } |
| 770 | switch (cputype) { |
| 771 | case MachO::CPU_TYPE_I386: |
| 772 | outs() << generic_r_types[r_type]; |
| 773 | break; |
| 774 | case MachO::CPU_TYPE_X86_64: |
| 775 | outs() << x86_64_r_types[r_type]; |
| 776 | break; |
| 777 | case MachO::CPU_TYPE_ARM: |
| 778 | outs() << arm_r_types[r_type]; |
| 779 | break; |
| 780 | case MachO::CPU_TYPE_ARM64: |
| 781 | case MachO::CPU_TYPE_ARM64_32: |
| 782 | outs() << arm64_r_types[r_type]; |
| 783 | break; |
| 784 | default: |
| 785 | outs() << format("%-7u ", r_type); |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | static void PrintRLength(const uint64_t cputype, const unsigned r_type, |
| 790 | const unsigned r_length, const bool previous_arm_half){ |
| 791 | if (cputype == MachO::CPU_TYPE_ARM && |
| 792 | (r_type == MachO::ARM_RELOC_HALF || |
| 793 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF || previous_arm_half == true)) { |
| 794 | if ((r_length & 0x1) == 0) |
| 795 | outs() << "lo/"; |
| 796 | else |
| 797 | outs() << "hi/"; |
| 798 | if ((r_length & 0x1) == 0) |
| 799 | outs() << "arm "; |
| 800 | else |
| 801 | outs() << "thm "; |
| 802 | } else { |
| 803 | switch (r_length) { |
| 804 | case 0: |
| 805 | outs() << "byte "; |
| 806 | break; |
| 807 | case 1: |
| 808 | outs() << "word "; |
| 809 | break; |
| 810 | case 2: |
| 811 | outs() << "long "; |
| 812 | break; |
| 813 | case 3: |
| 814 | if (cputype == MachO::CPU_TYPE_X86_64) |
| 815 | outs() << "quad "; |
| 816 | else |
| 817 | outs() << format("?(%2d) ", r_length); |
| 818 | break; |
| 819 | default: |
| 820 | outs() << format("?(%2d) ", r_length); |
| 821 | } |
| 822 | } |
| 823 | } |
| 824 | |
| 825 | static void PrintRelocationEntries(const MachOObjectFile *O, |
| 826 | const relocation_iterator Begin, |
| 827 | const relocation_iterator End, |
| 828 | const uint64_t cputype, |
| 829 | const bool verbose) { |
| 830 | const MachO::symtab_command Symtab = O->getSymtabLoadCommand(); |
| 831 | bool previous_arm_half = false; |
| 832 | bool previous_sectdiff = false; |
| 833 | uint32_t sectdiff_r_type = 0; |
| 834 | |
| 835 | for (relocation_iterator Reloc = Begin; Reloc != End; ++Reloc) { |
| 836 | const DataRefImpl Rel = Reloc->getRawDataRefImpl(); |
| 837 | const MachO::any_relocation_info RE = O->getRelocation(Rel); |
| 838 | const unsigned r_type = O->getAnyRelocationType(RE); |
| 839 | const bool r_scattered = O->isRelocationScattered(RE); |
| 840 | const unsigned r_pcrel = O->getAnyRelocationPCRel(RE); |
| 841 | const unsigned r_length = O->getAnyRelocationLength(RE); |
| 842 | const unsigned r_address = O->getAnyRelocationAddress(RE); |
| 843 | const bool r_extern = (r_scattered ? false : |
| 844 | O->getPlainRelocationExternal(RE)); |
| 845 | const uint32_t r_value = (r_scattered ? |
| 846 | O->getScatteredRelocationValue(RE) : 0); |
| 847 | const unsigned r_symbolnum = (r_scattered ? 0 : |
| 848 | O->getPlainRelocationSymbolNum(RE)); |
| 849 | |
| 850 | if (r_scattered && cputype != MachO::CPU_TYPE_X86_64) { |
| 851 | if (verbose) { |
| 852 | // scattered: address |
| 853 | if ((cputype == MachO::CPU_TYPE_I386 && |
| 854 | r_type == MachO::GENERIC_RELOC_PAIR) || |
| 855 | (cputype == MachO::CPU_TYPE_ARM && r_type == MachO::ARM_RELOC_PAIR)) |
| 856 | outs() << " "; |
| 857 | else |
| 858 | outs() << format("%08x ", (unsigned int)r_address); |
| 859 | |
| 860 | // scattered: pcrel |
| 861 | if (r_pcrel) |
| 862 | outs() << "True "; |
| 863 | else |
| 864 | outs() << "False "; |
| 865 | |
| 866 | // scattered: length |
| 867 | PrintRLength(cputype, r_type, r_length, previous_arm_half); |
| 868 | |
| 869 | // scattered: extern & type |
| 870 | outs() << "n/a "; |
| 871 | PrintRType(cputype, r_type); |
| 872 | |
| 873 | // scattered: scattered & value |
| 874 | outs() << format("True 0x%08x", (unsigned int)r_value); |
| 875 | if (previous_sectdiff == false) { |
| 876 | if ((cputype == MachO::CPU_TYPE_ARM && |
| 877 | r_type == MachO::ARM_RELOC_PAIR)) |
| 878 | outs() << format(" half = 0x%04x ", (unsigned int)r_address); |
| 879 | } else if (cputype == MachO::CPU_TYPE_ARM && |
| 880 | sectdiff_r_type == MachO::ARM_RELOC_HALF_SECTDIFF) |
| 881 | outs() << format(" other_half = 0x%04x ", (unsigned int)r_address); |
| 882 | if ((cputype == MachO::CPU_TYPE_I386 && |
| 883 | (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
| 884 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) || |
| 885 | (cputype == MachO::CPU_TYPE_ARM && |
| 886 | (sectdiff_r_type == MachO::ARM_RELOC_SECTDIFF || |
| 887 | sectdiff_r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF || |
| 888 | sectdiff_r_type == MachO::ARM_RELOC_HALF_SECTDIFF))) { |
| 889 | previous_sectdiff = true; |
| 890 | sectdiff_r_type = r_type; |
| 891 | } else { |
| 892 | previous_sectdiff = false; |
| 893 | sectdiff_r_type = 0; |
| 894 | } |
| 895 | if (cputype == MachO::CPU_TYPE_ARM && |
| 896 | (r_type == MachO::ARM_RELOC_HALF || |
| 897 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF)) |
| 898 | previous_arm_half = true; |
| 899 | else |
| 900 | previous_arm_half = false; |
| 901 | outs() << "\n"; |
| 902 | } |
| 903 | else { |
| 904 | // scattered: address pcrel length extern type scattered value |
| 905 | outs() << format("%08x %1d %-2d n/a %-7d 1 0x%08x\n", |
| 906 | (unsigned int)r_address, r_pcrel, r_length, r_type, |
| 907 | (unsigned int)r_value); |
| 908 | } |
| 909 | } |
| 910 | else { |
| 911 | if (verbose) { |
| 912 | // plain: address |
| 913 | if (cputype == MachO::CPU_TYPE_ARM && r_type == MachO::ARM_RELOC_PAIR) |
| 914 | outs() << " "; |
| 915 | else |
| 916 | outs() << format("%08x ", (unsigned int)r_address); |
| 917 | |
| 918 | // plain: pcrel |
| 919 | if (r_pcrel) |
| 920 | outs() << "True "; |
| 921 | else |
| 922 | outs() << "False "; |
| 923 | |
| 924 | // plain: length |
| 925 | PrintRLength(cputype, r_type, r_length, previous_arm_half); |
| 926 | |
| 927 | if (r_extern) { |
| 928 | // plain: extern & type & scattered |
| 929 | outs() << "True "; |
| 930 | PrintRType(cputype, r_type); |
| 931 | outs() << "False "; |
| 932 | |
| 933 | // plain: symbolnum/value |
| 934 | if (r_symbolnum > Symtab.nsyms) |
| 935 | outs() << format("?(%d)\n", r_symbolnum); |
| 936 | else { |
| 937 | SymbolRef Symbol = *O->getSymbolByIndex(r_symbolnum); |
| 938 | Expected<StringRef> SymNameNext = Symbol.getName(); |
| 939 | const char *name = nullptr; |
| 940 | if (SymNameNext) |
| 941 | name = SymNameNext->data(); |
| 942 | if (name == nullptr) |
| 943 | outs() << format("?(%d)\n", r_symbolnum); |
| 944 | else |
| 945 | outs() << name << "\n"; |
| 946 | } |
| 947 | } |
| 948 | else { |
| 949 | // plain: extern & type & scattered |
| 950 | outs() << "False "; |
| 951 | PrintRType(cputype, r_type); |
| 952 | outs() << "False "; |
| 953 | |
| 954 | // plain: symbolnum/value |
| 955 | if (cputype == MachO::CPU_TYPE_ARM && r_type == MachO::ARM_RELOC_PAIR) |
| 956 | outs() << format("other_half = 0x%04x\n", (unsigned int)r_address); |
| 957 | else if ((cputype == MachO::CPU_TYPE_ARM64 || |
| 958 | cputype == MachO::CPU_TYPE_ARM64_32) && |
| 959 | r_type == MachO::ARM64_RELOC_ADDEND) |
| 960 | outs() << format("addend = 0x%06x\n", (unsigned int)r_symbolnum); |
| 961 | else { |
| 962 | outs() << format("%d ", r_symbolnum); |
| 963 | if (r_symbolnum == MachO::R_ABS) |
| 964 | outs() << "R_ABS\n"; |
| 965 | else { |
| 966 | // in this case, r_symbolnum is actually a 1-based section number |
| 967 | uint32_t nsects = O->section_end()->getRawDataRefImpl().d.a; |
| 968 | if (r_symbolnum > 0 && r_symbolnum <= nsects) { |
| 969 | object::DataRefImpl DRI; |
| 970 | DRI.d.a = r_symbolnum-1; |
| 971 | StringRef SegName = O->getSectionFinalSegmentName(DRI); |
| 972 | if (Expected<StringRef> NameOrErr = O->getSectionName(DRI)) |
| 973 | outs() << "(" << SegName << "," << *NameOrErr << ")\n"; |
| 974 | else |
| 975 | outs() << "(?,?)\n"; |
| 976 | } |
| 977 | else { |
| 978 | outs() << "(?,?)\n"; |
| 979 | } |
| 980 | } |
| 981 | } |
| 982 | } |
| 983 | if (cputype == MachO::CPU_TYPE_ARM && |
| 984 | (r_type == MachO::ARM_RELOC_HALF || |
| 985 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF)) |
| 986 | previous_arm_half = true; |
| 987 | else |
| 988 | previous_arm_half = false; |
| 989 | } |
| 990 | else { |
| 991 | // plain: address pcrel length extern type scattered symbolnum/section |
| 992 | outs() << format("%08x %1d %-2d %1d %-7d 0 %d\n", |
| 993 | (unsigned int)r_address, r_pcrel, r_length, r_extern, |
| 994 | r_type, r_symbolnum); |
| 995 | } |
| 996 | } |
| 997 | } |
| 998 | } |
| 999 | |
| 1000 | static void PrintRelocations(const MachOObjectFile *O, const bool verbose) { |
| 1001 | const uint64_t cputype = O->getHeader().cputype; |
| 1002 | const MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
| 1003 | if (Dysymtab.nextrel != 0) { |
| 1004 | outs() << "External relocation information " << Dysymtab.nextrel |
| 1005 | << " entries"; |
| 1006 | outs() << "\naddress pcrel length extern type scattered " |
| 1007 | "symbolnum/value\n"; |
| 1008 | PrintRelocationEntries(O, O->extrel_begin(), O->extrel_end(), cputype, |
| 1009 | verbose); |
| 1010 | } |
| 1011 | if (Dysymtab.nlocrel != 0) { |
| 1012 | outs() << format("Local relocation information %u entries", |
| 1013 | Dysymtab.nlocrel); |
| 1014 | outs() << "\naddress pcrel length extern type scattered " |
| 1015 | "symbolnum/value\n"; |
| 1016 | PrintRelocationEntries(O, O->locrel_begin(), O->locrel_end(), cputype, |
| 1017 | verbose); |
| 1018 | } |
| 1019 | for (const auto &Load : O->load_commands()) { |
| 1020 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
| 1021 | const MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); |
| 1022 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 1023 | const MachO::section_64 Sec = O->getSection64(Load, J); |
| 1024 | if (Sec.nreloc != 0) { |
| 1025 | DataRefImpl DRI; |
| 1026 | DRI.d.a = J; |
| 1027 | const StringRef SegName = O->getSectionFinalSegmentName(DRI); |
| 1028 | if (Expected<StringRef> NameOrErr = O->getSectionName(DRI)) |
| 1029 | outs() << "Relocation information (" << SegName << "," << *NameOrErr |
| 1030 | << format(") %u entries", Sec.nreloc); |
| 1031 | else |
| 1032 | outs() << "Relocation information (" << SegName << ",?) " |
| 1033 | << format("%u entries", Sec.nreloc); |
| 1034 | outs() << "\naddress pcrel length extern type scattered " |
| 1035 | "symbolnum/value\n"; |
| 1036 | PrintRelocationEntries(O, O->section_rel_begin(DRI), |
| 1037 | O->section_rel_end(DRI), cputype, verbose); |
| 1038 | } |
| 1039 | } |
| 1040 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
| 1041 | const MachO::segment_command Seg = O->getSegmentLoadCommand(Load); |
| 1042 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 1043 | const MachO::section Sec = O->getSection(Load, J); |
| 1044 | if (Sec.nreloc != 0) { |
| 1045 | DataRefImpl DRI; |
| 1046 | DRI.d.a = J; |
| 1047 | const StringRef SegName = O->getSectionFinalSegmentName(DRI); |
| 1048 | if (Expected<StringRef> NameOrErr = O->getSectionName(DRI)) |
| 1049 | outs() << "Relocation information (" << SegName << "," << *NameOrErr |
| 1050 | << format(") %u entries", Sec.nreloc); |
| 1051 | else |
| 1052 | outs() << "Relocation information (" << SegName << ",?) " |
| 1053 | << format("%u entries", Sec.nreloc); |
| 1054 | outs() << "\naddress pcrel length extern type scattered " |
| 1055 | "symbolnum/value\n"; |
| 1056 | PrintRelocationEntries(O, O->section_rel_begin(DRI), |
| 1057 | O->section_rel_end(DRI), cputype, verbose); |
| 1058 | } |
| 1059 | } |
| 1060 | } |
| 1061 | } |
| 1062 | } |
| 1063 | |
| 1064 | static void PrintFunctionStarts(MachOObjectFile *O) { |
| 1065 | uint64_t BaseSegmentAddress = 0; |
| 1066 | for (const MachOObjectFile::LoadCommandInfo &Command : O->load_commands()) { |
| 1067 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
| 1068 | MachO::segment_command SLC = O->getSegmentLoadCommand(Command); |
| 1069 | if (StringRef(SLC.segname) == "__TEXT") { |
| 1070 | BaseSegmentAddress = SLC.vmaddr; |
| 1071 | break; |
| 1072 | } |
| 1073 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
| 1074 | MachO::segment_command_64 SLC = O->getSegment64LoadCommand(Command); |
| 1075 | if (StringRef(SLC.segname) == "__TEXT") { |
| 1076 | BaseSegmentAddress = SLC.vmaddr; |
| 1077 | break; |
| 1078 | } |
| 1079 | } |
| 1080 | } |
| 1081 | |
| 1082 | SmallVector<uint64_t, 8> FunctionStarts; |
| 1083 | for (const MachOObjectFile::LoadCommandInfo &LC : O->load_commands()) { |
| 1084 | if (LC.C.cmd == MachO::LC_FUNCTION_STARTS) { |
| 1085 | MachO::linkedit_data_command FunctionStartsLC = |
| 1086 | O->getLinkeditDataLoadCommand(LC); |
| 1087 | O->ReadULEB128s(FunctionStartsLC.dataoff, FunctionStarts); |
| 1088 | break; |
| 1089 | } |
| 1090 | } |
| 1091 | |
| 1092 | DenseMap<uint64_t, StringRef> SymbolNames; |
| 1093 | if (FunctionStartsType == FunctionStartsMode::Names || |
| 1094 | FunctionStartsType == FunctionStartsMode::Both) { |
| 1095 | for (SymbolRef Sym : O->symbols()) { |
| 1096 | if (Expected<uint64_t> Addr = Sym.getAddress()) { |
| 1097 | if (Expected<StringRef> Name = Sym.getName()) { |
| 1098 | SymbolNames[*Addr] = *Name; |
| 1099 | } |
| 1100 | } |
| 1101 | } |
| 1102 | } |
| 1103 | |
| 1104 | for (uint64_t S : FunctionStarts) { |
| 1105 | uint64_t Addr = BaseSegmentAddress + S; |
| 1106 | if (FunctionStartsType == FunctionStartsMode::Names) { |
| 1107 | auto It = SymbolNames.find(Addr); |
| 1108 | if (It != SymbolNames.end()) |
| 1109 | outs() << It->second << "\n"; |
| 1110 | } else { |
| 1111 | if (O->is64Bit()) |
| 1112 | outs() << format("%016" PRIx64"l" "x", Addr); |
| 1113 | else |
| 1114 | outs() << format("%08" PRIx32"x", static_cast<uint32_t>(Addr)); |
| 1115 | |
| 1116 | if (FunctionStartsType == FunctionStartsMode::Both) { |
| 1117 | auto It = SymbolNames.find(Addr); |
| 1118 | if (It != SymbolNames.end()) |
| 1119 | outs() << " " << It->second; |
| 1120 | else |
| 1121 | outs() << " ?"; |
| 1122 | } |
| 1123 | outs() << "\n"; |
| 1124 | } |
| 1125 | } |
| 1126 | } |
| 1127 | |
| 1128 | static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) { |
| 1129 | MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand(); |
| 1130 | uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry); |
| 1131 | outs() << "Data in code table (" << nentries << " entries)\n"; |
| 1132 | outs() << "offset length kind\n"; |
| 1133 | for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE; |
| 1134 | ++DI) { |
| 1135 | uint32_t Offset; |
| 1136 | DI->getOffset(Offset); |
| 1137 | outs() << format("0x%08" PRIx32"x", Offset) << " "; |
| 1138 | uint16_t Length; |
| 1139 | DI->getLength(Length); |
| 1140 | outs() << format("%6u", Length) << " "; |
| 1141 | uint16_t Kind; |
| 1142 | DI->getKind(Kind); |
| 1143 | if (verbose) { |
| 1144 | switch (Kind) { |
| 1145 | case MachO::DICE_KIND_DATA: |
| 1146 | outs() << "DATA"; |
| 1147 | break; |
| 1148 | case MachO::DICE_KIND_JUMP_TABLE8: |
| 1149 | outs() << "JUMP_TABLE8"; |
| 1150 | break; |
| 1151 | case MachO::DICE_KIND_JUMP_TABLE16: |
| 1152 | outs() << "JUMP_TABLE16"; |
| 1153 | break; |
| 1154 | case MachO::DICE_KIND_JUMP_TABLE32: |
| 1155 | outs() << "JUMP_TABLE32"; |
| 1156 | break; |
| 1157 | case MachO::DICE_KIND_ABS_JUMP_TABLE32: |
| 1158 | outs() << "ABS_JUMP_TABLE32"; |
| 1159 | break; |
| 1160 | default: |
| 1161 | outs() << format("0x%04" PRIx32"x", Kind); |
| 1162 | break; |
| 1163 | } |
| 1164 | } else |
| 1165 | outs() << format("0x%04" PRIx32"x", Kind); |
| 1166 | outs() << "\n"; |
| 1167 | } |
| 1168 | } |
| 1169 | |
| 1170 | static void PrintLinkOptHints(MachOObjectFile *O) { |
| 1171 | MachO::linkedit_data_command LohLC = O->getLinkOptHintsLoadCommand(); |
| 1172 | const char *loh = O->getData().substr(LohLC.dataoff, 1).data(); |
| 1173 | uint32_t nloh = LohLC.datasize; |
| 1174 | outs() << "Linker optimiztion hints (" << nloh << " total bytes)\n"; |
| 1175 | for (uint32_t i = 0; i < nloh;) { |
| 1176 | unsigned n; |
| 1177 | uint64_t identifier = decodeULEB128((const uint8_t *)(loh + i), &n); |
| 1178 | i += n; |
| 1179 | outs() << " identifier " << identifier << " "; |
| 1180 | if (i >= nloh) |
| 1181 | return; |
| 1182 | switch (identifier) { |
| 1183 | case 1: |
| 1184 | outs() << "AdrpAdrp\n"; |
| 1185 | break; |
| 1186 | case 2: |
| 1187 | outs() << "AdrpLdr\n"; |
| 1188 | break; |
| 1189 | case 3: |
| 1190 | outs() << "AdrpAddLdr\n"; |
| 1191 | break; |
| 1192 | case 4: |
| 1193 | outs() << "AdrpLdrGotLdr\n"; |
| 1194 | break; |
| 1195 | case 5: |
| 1196 | outs() << "AdrpAddStr\n"; |
| 1197 | break; |
| 1198 | case 6: |
| 1199 | outs() << "AdrpLdrGotStr\n"; |
| 1200 | break; |
| 1201 | case 7: |
| 1202 | outs() << "AdrpAdd\n"; |
| 1203 | break; |
| 1204 | case 8: |
| 1205 | outs() << "AdrpLdrGot\n"; |
| 1206 | break; |
| 1207 | default: |
| 1208 | outs() << "Unknown identifier value\n"; |
| 1209 | break; |
| 1210 | } |
| 1211 | uint64_t narguments = decodeULEB128((const uint8_t *)(loh + i), &n); |
| 1212 | i += n; |
| 1213 | outs() << " narguments " << narguments << "\n"; |
| 1214 | if (i >= nloh) |
| 1215 | return; |
| 1216 | |
| 1217 | for (uint32_t j = 0; j < narguments; j++) { |
| 1218 | uint64_t value = decodeULEB128((const uint8_t *)(loh + i), &n); |
| 1219 | i += n; |
| 1220 | outs() << "\tvalue " << format("0x%" PRIx64"l" "x", value) << "\n"; |
| 1221 | if (i >= nloh) |
| 1222 | return; |
| 1223 | } |
| 1224 | } |
| 1225 | } |
| 1226 | |
| 1227 | static SmallVector<std::string> GetSegmentNames(object::MachOObjectFile *O) { |
| 1228 | SmallVector<std::string> Ret; |
| 1229 | for (const MachOObjectFile::LoadCommandInfo &Command : O->load_commands()) { |
| 1230 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
| 1231 | MachO::segment_command SLC = O->getSegmentLoadCommand(Command); |
| 1232 | Ret.push_back(SLC.segname); |
| 1233 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
| 1234 | MachO::segment_command_64 SLC = O->getSegment64LoadCommand(Command); |
| 1235 | Ret.push_back(SLC.segname); |
| 1236 | } |
| 1237 | } |
| 1238 | return Ret; |
| 1239 | } |
| 1240 | |
| 1241 | static void |
| 1242 | PrintChainedFixupsHeader(const MachO::dyld_chained_fixups_header &H) { |
| 1243 | outs() << "chained fixups header (LC_DYLD_CHAINED_FIXUPS)\n"; |
| 1244 | outs() << " fixups_version = " << H.fixups_version << '\n'; |
| 1245 | outs() << " starts_offset = " << H.starts_offset << '\n'; |
| 1246 | outs() << " imports_offset = " << H.imports_offset << '\n'; |
| 1247 | outs() << " symbols_offset = " << H.symbols_offset << '\n'; |
| 1248 | outs() << " imports_count = " << H.imports_count << '\n'; |
| 1249 | |
| 1250 | outs() << " imports_format = " << H.imports_format; |
| 1251 | switch (H.imports_format) { |
| 1252 | case llvm::MachO::DYLD_CHAINED_IMPORT: |
| 1253 | outs() << " (DYLD_CHAINED_IMPORT)"; |
| 1254 | break; |
| 1255 | case llvm::MachO::DYLD_CHAINED_IMPORT_ADDEND: |
| 1256 | outs() << " (DYLD_CHAINED_IMPORT_ADDEND)"; |
| 1257 | break; |
| 1258 | case llvm::MachO::DYLD_CHAINED_IMPORT_ADDEND64: |
| 1259 | outs() << " (DYLD_CHAINED_IMPORT_ADDEND64)"; |
| 1260 | break; |
| 1261 | } |
| 1262 | outs() << '\n'; |
| 1263 | |
| 1264 | outs() << " symbols_format = " << H.symbols_format; |
| 1265 | if (H.symbols_format == llvm::MachO::DYLD_CHAINED_SYMBOL_ZLIB) |
| 1266 | outs() << " (zlib compressed)"; |
| 1267 | outs() << '\n'; |
| 1268 | } |
| 1269 | |
| 1270 | static constexpr std::array<StringRef, 13> PointerFormats{ |
| 1271 | "DYLD_CHAINED_PTR_ARM64E", |
| 1272 | "DYLD_CHAINED_PTR_64", |
| 1273 | "DYLD_CHAINED_PTR_32", |
| 1274 | "DYLD_CHAINED_PTR_32_CACHE", |
| 1275 | "DYLD_CHAINED_PTR_32_FIRMWARE", |
| 1276 | "DYLD_CHAINED_PTR_64_OFFSET", |
| 1277 | "DYLD_CHAINED_PTR_ARM64E_KERNEL", |
| 1278 | "DYLD_CHAINED_PTR_64_KERNEL_CACHE", |
| 1279 | "DYLD_CHAINED_PTR_ARM64E_USERLAND", |
| 1280 | "DYLD_CHAINED_PTR_ARM64E_FIRMWARE", |
| 1281 | "DYLD_CHAINED_PTR_X86_64_KERNEL_CACHE", |
| 1282 | "DYLD_CHAINED_PTR_ARM64E_USERLAND24", |
| 1283 | }; |
| 1284 | |
| 1285 | static void PrintChainedFixupsSegment(const ChainedFixupsSegment &Segment, |
| 1286 | StringRef SegName) { |
| 1287 | outs() << "chained starts in segment " << Segment.SegIdx << " (" << SegName |
| 1288 | << ")\n"; |
| 1289 | outs() << " size = " << Segment.Header.size << '\n'; |
| 1290 | outs() << " page_size = " << format("0x%0" PRIx16"x", Segment.Header.page_size) |
| 1291 | << '\n'; |
| 1292 | |
| 1293 | outs() << " pointer_format = " << Segment.Header.pointer_format; |
| 1294 | if ((Segment.Header.pointer_format - 1) < |
| 1295 | MachO::DYLD_CHAINED_PTR_ARM64E_USERLAND24) |
| 1296 | outs() << " (" << PointerFormats[Segment.Header.pointer_format - 1] << ")"; |
| 1297 | outs() << '\n'; |
| 1298 | |
| 1299 | outs() << " segment_offset = " |
| 1300 | << format("0x%0" PRIx64"l" "x", Segment.Header.segment_offset) << '\n'; |
| 1301 | outs() << " max_valid_pointer = " << Segment.Header.max_valid_pointer |
| 1302 | << '\n'; |
| 1303 | outs() << " page_count = " << Segment.Header.page_count << '\n'; |
| 1304 | for (auto [Index, PageStart] : enumerate(Segment.PageStarts)) { |
| 1305 | outs() << " page_start[" << Index << "] = " << PageStart; |
| 1306 | // FIXME: Support DYLD_CHAINED_PTR_START_MULTI (32-bit only) |
| 1307 | if (PageStart == MachO::DYLD_CHAINED_PTR_START_NONE) |
| 1308 | outs() << " (DYLD_CHAINED_PTR_START_NONE)"; |
| 1309 | outs() << '\n'; |
| 1310 | } |
| 1311 | } |
| 1312 | |
| 1313 | static void PrintChainedFixupTarget(ChainedFixupTarget &Target, size_t Idx, |
| 1314 | int Format, MachOObjectFile *O) { |
| 1315 | if (Format == MachO::DYLD_CHAINED_IMPORT) |
| 1316 | outs() << "dyld chained import"; |
| 1317 | else if (Format == MachO::DYLD_CHAINED_IMPORT_ADDEND) |
| 1318 | outs() << "dyld chained import addend"; |
| 1319 | else if (Format == MachO::DYLD_CHAINED_IMPORT_ADDEND64) |
| 1320 | outs() << "dyld chained import addend64"; |
| 1321 | // FIXME: otool prints the encoded value as well. |
| 1322 | outs() << '[' << Idx << "]\n"; |
| 1323 | |
| 1324 | outs() << " lib_ordinal = " << Target.libOrdinal() << " (" |
| 1325 | << ordinalName(O, Target.libOrdinal()) << ")\n"; |
| 1326 | outs() << " weak_import = " << Target.weakImport() << '\n'; |
| 1327 | outs() << " name_offset = " << Target.nameOffset() << " (" |
| 1328 | << Target.symbolName() << ")\n"; |
| 1329 | if (Format != MachO::DYLD_CHAINED_IMPORT) |
| 1330 | outs() << " addend = " << (int64_t)Target.addend() << '\n'; |
| 1331 | } |
| 1332 | |
| 1333 | static void PrintChainedFixups(MachOObjectFile *O) { |
| 1334 | // MachOObjectFile::getChainedFixupsHeader() reads LC_DYLD_CHAINED_FIXUPS. |
| 1335 | // FIXME: Support chained fixups in __TEXT,__chain_starts section too. |
| 1336 | auto ChainedFixupHeader = |
| 1337 | unwrapOrError(O->getChainedFixupsHeader(), O->getFileName()); |
| 1338 | if (!ChainedFixupHeader) |
| 1339 | return; |
| 1340 | |
| 1341 | PrintChainedFixupsHeader(*ChainedFixupHeader); |
| 1342 | |
| 1343 | auto [SegCount, Segments] = |
| 1344 | unwrapOrError(O->getChainedFixupsSegments(), O->getFileName()); |
| 1345 | |
| 1346 | auto SegNames = GetSegmentNames(O); |
| 1347 | |
| 1348 | size_t StartsIdx = 0; |
| 1349 | outs() << "chained starts in image\n"; |
| 1350 | outs() << " seg_count = " << SegCount << '\n'; |
| 1351 | for (size_t I = 0; I < SegCount; ++I) { |
| 1352 | uint64_t SegOffset = 0; |
| 1353 | if (StartsIdx < Segments.size() && I == Segments[StartsIdx].SegIdx) { |
| 1354 | SegOffset = Segments[StartsIdx].Offset; |
| 1355 | ++StartsIdx; |
| 1356 | } |
| 1357 | |
| 1358 | outs() << " seg_offset[" << I << "] = " << SegOffset << " (" |
| 1359 | << SegNames[I] << ")\n"; |
| 1360 | } |
| 1361 | |
| 1362 | for (const ChainedFixupsSegment &S : Segments) |
| 1363 | PrintChainedFixupsSegment(S, SegNames[S.SegIdx]); |
| 1364 | |
| 1365 | auto FixupTargets = |
| 1366 | unwrapOrError(O->getDyldChainedFixupTargets(), O->getFileName()); |
| 1367 | |
| 1368 | uint32_t ImportsFormat = ChainedFixupHeader->imports_format; |
| 1369 | for (auto [Idx, Target] : enumerate(FixupTargets)) |
| 1370 | PrintChainedFixupTarget(Target, Idx, ImportsFormat, O); |
| 1371 | } |
| 1372 | |
| 1373 | static void PrintDyldInfo(MachOObjectFile *O) { |
| 1374 | Error Err = Error::success(); |
| 1375 | |
| 1376 | size_t SegmentWidth = strlen("segment"); |
| 1377 | size_t SectionWidth = strlen("section"); |
| 1378 | size_t AddressWidth = strlen("address"); |
| 1379 | size_t AddendWidth = strlen("addend"); |
| 1380 | size_t DylibWidth = strlen("dylib"); |
| 1381 | const size_t PointerWidth = 2 + O->getBytesInAddress() * 2; |
| 1382 | |
| 1383 | auto HexLength = [](uint64_t Num) { |
| 1384 | return Num ? (size_t)divideCeil(Log2_64(Num), 4) : 1; |
| 1385 | }; |
| 1386 | for (const object::MachOChainedFixupEntry &Entry : O->fixupTable(Err)) { |
| 1387 | SegmentWidth = std::max(SegmentWidth, Entry.segmentName().size()); |
| 1388 | SectionWidth = std::max(SectionWidth, Entry.sectionName().size()); |
| 1389 | AddressWidth = std::max(AddressWidth, HexLength(Entry.address()) + 2); |
| 1390 | if (Entry.isBind()) { |
| 1391 | AddendWidth = std::max(AddendWidth, HexLength(Entry.addend()) + 2); |
| 1392 | DylibWidth = std::max(DylibWidth, Entry.symbolName().size()); |
| 1393 | } |
| 1394 | } |
| 1395 | // Errors will be handled when printing the table. |
| 1396 | if (Err) |
| 1397 | consumeError(std::move(Err)); |
| 1398 | |
| 1399 | outs() << "dyld information:\n"; |
| 1400 | outs() << left_justify("segment", SegmentWidth) << ' ' |
| 1401 | << left_justify("section", SectionWidth) << ' ' |
| 1402 | << left_justify("address", AddressWidth) << ' ' |
| 1403 | << left_justify("pointer", PointerWidth) << " type " |
| 1404 | << left_justify("addend", AddendWidth) << ' ' |
| 1405 | << left_justify("dylib", DylibWidth) << " symbol/vm address\n"; |
| 1406 | for (const object::MachOChainedFixupEntry &Entry : O->fixupTable(Err)) { |
| 1407 | outs() << left_justify(Entry.segmentName(), SegmentWidth) << ' ' |
| 1408 | << left_justify(Entry.sectionName(), SectionWidth) << ' ' << "0x" |
| 1409 | << left_justify(utohexstr(Entry.address()), AddressWidth - 2) << ' ' |
| 1410 | << format_hex(Entry.rawValue(), PointerWidth, true) << ' '; |
| 1411 | if (Entry.isBind()) { |
| 1412 | outs() << "bind " |
| 1413 | << "0x" << left_justify(utohexstr(Entry.addend()), AddendWidth - 2) |
| 1414 | << ' ' << left_justify(ordinalName(O, Entry.ordinal()), DylibWidth) |
| 1415 | << ' ' << Entry.symbolName(); |
| 1416 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT) |
| 1417 | outs() << " (weak import)"; |
| 1418 | outs() << '\n'; |
| 1419 | } else { |
| 1420 | assert(Entry.isRebase())(static_cast <bool> (Entry.isRebase()) ? void (0) : __assert_fail ("Entry.isRebase()", "llvm/tools/llvm-objdump/MachODump.cpp" , 1420, __extension__ __PRETTY_FUNCTION__)); |
| 1421 | outs() << "rebase"; |
| 1422 | outs().indent(AddendWidth + DylibWidth + 2); |
| 1423 | outs() << format("0x%" PRIX64"l" "X", Entry.pointerValue()) << '\n'; |
| 1424 | } |
| 1425 | } |
| 1426 | if (Err) |
| 1427 | reportError(std::move(Err), O->getFileName()); |
| 1428 | |
| 1429 | // TODO: Print opcode-based fixups if the object uses those. |
| 1430 | } |
| 1431 | |
| 1432 | static void PrintDylibs(MachOObjectFile *O, bool JustId) { |
| 1433 | unsigned Index = 0; |
| 1434 | for (const auto &Load : O->load_commands()) { |
| 1435 | if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) || |
| 1436 | (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB || |
| 1437 | Load.C.cmd == MachO::LC_LOAD_DYLIB || |
| 1438 | Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || |
| 1439 | Load.C.cmd == MachO::LC_REEXPORT_DYLIB || |
| 1440 | Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || |
| 1441 | Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) { |
| 1442 | MachO::dylib_command dl = O->getDylibIDLoadCommand(Load); |
| 1443 | if (dl.dylib.name < dl.cmdsize) { |
| 1444 | const char *p = (const char *)(Load.Ptr) + dl.dylib.name; |
| 1445 | if (JustId) |
| 1446 | outs() << p << "\n"; |
| 1447 | else { |
| 1448 | outs() << "\t" << p; |
| 1449 | outs() << " (compatibility version " |
| 1450 | << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." |
| 1451 | << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." |
| 1452 | << (dl.dylib.compatibility_version & 0xff) << ","; |
| 1453 | outs() << " current version " |
| 1454 | << ((dl.dylib.current_version >> 16) & 0xffff) << "." |
| 1455 | << ((dl.dylib.current_version >> 8) & 0xff) << "." |
| 1456 | << (dl.dylib.current_version & 0xff); |
| 1457 | if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
| 1458 | outs() << ", weak"; |
| 1459 | if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB) |
| 1460 | outs() << ", reexport"; |
| 1461 | if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
| 1462 | outs() << ", upward"; |
| 1463 | if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
| 1464 | outs() << ", lazy"; |
| 1465 | outs() << ")\n"; |
| 1466 | } |
| 1467 | } else { |
| 1468 | outs() << "\tBad offset (" << dl.dylib.name << ") for name of "; |
| 1469 | if (Load.C.cmd == MachO::LC_ID_DYLIB) |
| 1470 | outs() << "LC_ID_DYLIB "; |
| 1471 | else if (Load.C.cmd == MachO::LC_LOAD_DYLIB) |
| 1472 | outs() << "LC_LOAD_DYLIB "; |
| 1473 | else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
| 1474 | outs() << "LC_LOAD_WEAK_DYLIB "; |
| 1475 | else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
| 1476 | outs() << "LC_LAZY_LOAD_DYLIB "; |
| 1477 | else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB) |
| 1478 | outs() << "LC_REEXPORT_DYLIB "; |
| 1479 | else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
| 1480 | outs() << "LC_LOAD_UPWARD_DYLIB "; |
| 1481 | else |
| 1482 | outs() << "LC_??? "; |
| 1483 | outs() << "command " << Index++ << "\n"; |
| 1484 | } |
| 1485 | } |
| 1486 | } |
| 1487 | } |
| 1488 | |
| 1489 | static void printRpaths(MachOObjectFile *O) { |
| 1490 | for (const auto &Command : O->load_commands()) { |
| 1491 | if (Command.C.cmd == MachO::LC_RPATH) { |
| 1492 | auto Rpath = O->getRpathCommand(Command); |
| 1493 | const char *P = (const char *)(Command.Ptr) + Rpath.path; |
| 1494 | outs() << P << "\n"; |
| 1495 | } |
| 1496 | } |
| 1497 | } |
| 1498 | |
| 1499 | typedef DenseMap<uint64_t, StringRef> SymbolAddressMap; |
| 1500 | |
| 1501 | static void CreateSymbolAddressMap(MachOObjectFile *O, |
| 1502 | SymbolAddressMap *AddrMap) { |
| 1503 | // Create a map of symbol addresses to symbol names. |
| 1504 | const StringRef FileName = O->getFileName(); |
| 1505 | for (const SymbolRef &Symbol : O->symbols()) { |
| 1506 | SymbolRef::Type ST = unwrapOrError(Symbol.getType(), FileName); |
| 1507 | if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || |
| 1508 | ST == SymbolRef::ST_Other) { |
| 1509 | uint64_t Address = cantFail(Symbol.getValue()); |
| 1510 | StringRef SymName = unwrapOrError(Symbol.getName(), FileName); |
| 1511 | if (!SymName.startswith(".objc")) |
| 1512 | (*AddrMap)[Address] = SymName; |
| 1513 | } |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | // GuessSymbolName is passed the address of what might be a symbol and a |
| 1518 | // pointer to the SymbolAddressMap. It returns the name of a symbol |
| 1519 | // with that address or nullptr if no symbol is found with that address. |
| 1520 | static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) { |
| 1521 | const char *SymbolName = nullptr; |
| 1522 | // A DenseMap can't lookup up some values. |
| 1523 | if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) { |
| 1524 | StringRef name = AddrMap->lookup(value); |
| 1525 | if (!name.empty()) |
| 1526 | SymbolName = name.data(); |
| 1527 | } |
| 1528 | return SymbolName; |
| 1529 | } |
| 1530 | |
| 1531 | static void DumpCstringChar(const char c) { |
| 1532 | char p[2]; |
| 1533 | p[0] = c; |
| 1534 | p[1] = '\0'; |
| 1535 | outs().write_escaped(p); |
| 1536 | } |
| 1537 | |
| 1538 | static void DumpCstringSection(MachOObjectFile *O, const char *sect, |
| 1539 | uint32_t sect_size, uint64_t sect_addr, |
| 1540 | bool print_addresses) { |
| 1541 | for (uint32_t i = 0; i < sect_size; i++) { |
| 1542 | if (print_addresses) { |
| 1543 | if (O->is64Bit()) |
| 1544 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
| 1545 | else |
| 1546 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
| 1547 | } |
| 1548 | for (; i < sect_size && sect[i] != '\0'; i++) |
| 1549 | DumpCstringChar(sect[i]); |
| 1550 | if (i < sect_size && sect[i] == '\0') |
| 1551 | outs() << "\n"; |
| 1552 | } |
| 1553 | } |
| 1554 | |
| 1555 | static void DumpLiteral4(uint32_t l, float f) { |
| 1556 | outs() << format("0x%08" PRIx32"x", l); |
| 1557 | if ((l & 0x7f800000) != 0x7f800000) |
| 1558 | outs() << format(" (%.16e)\n", f); |
| 1559 | else { |
| 1560 | if (l == 0x7f800000) |
| 1561 | outs() << " (+Infinity)\n"; |
| 1562 | else if (l == 0xff800000) |
| 1563 | outs() << " (-Infinity)\n"; |
| 1564 | else if ((l & 0x00400000) == 0x00400000) |
| 1565 | outs() << " (non-signaling Not-a-Number)\n"; |
| 1566 | else |
| 1567 | outs() << " (signaling Not-a-Number)\n"; |
| 1568 | } |
| 1569 | } |
| 1570 | |
| 1571 | static void DumpLiteral4Section(MachOObjectFile *O, const char *sect, |
| 1572 | uint32_t sect_size, uint64_t sect_addr, |
| 1573 | bool print_addresses) { |
| 1574 | for (uint32_t i = 0; i < sect_size; i += sizeof(float)) { |
| 1575 | if (print_addresses) { |
| 1576 | if (O->is64Bit()) |
| 1577 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
| 1578 | else |
| 1579 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
| 1580 | } |
| 1581 | float f; |
| 1582 | memcpy(&f, sect + i, sizeof(float)); |
| 1583 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1584 | sys::swapByteOrder(f); |
| 1585 | uint32_t l; |
| 1586 | memcpy(&l, sect + i, sizeof(uint32_t)); |
| 1587 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1588 | sys::swapByteOrder(l); |
| 1589 | DumpLiteral4(l, f); |
| 1590 | } |
| 1591 | } |
| 1592 | |
| 1593 | static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1, |
| 1594 | double d) { |
| 1595 | outs() << format("0x%08" PRIx32"x", l0) << " " << format("0x%08" PRIx32"x", l1); |
| 1596 | uint32_t Hi, Lo; |
| 1597 | Hi = (O->isLittleEndian()) ? l1 : l0; |
| 1598 | Lo = (O->isLittleEndian()) ? l0 : l1; |
| 1599 | |
| 1600 | // Hi is the high word, so this is equivalent to if(isfinite(d)) |
| 1601 | if ((Hi & 0x7ff00000) != 0x7ff00000) |
| 1602 | outs() << format(" (%.16e)\n", d); |
| 1603 | else { |
| 1604 | if (Hi == 0x7ff00000 && Lo == 0) |
| 1605 | outs() << " (+Infinity)\n"; |
| 1606 | else if (Hi == 0xfff00000 && Lo == 0) |
| 1607 | outs() << " (-Infinity)\n"; |
| 1608 | else if ((Hi & 0x00080000) == 0x00080000) |
| 1609 | outs() << " (non-signaling Not-a-Number)\n"; |
| 1610 | else |
| 1611 | outs() << " (signaling Not-a-Number)\n"; |
| 1612 | } |
| 1613 | } |
| 1614 | |
| 1615 | static void DumpLiteral8Section(MachOObjectFile *O, const char *sect, |
| 1616 | uint32_t sect_size, uint64_t sect_addr, |
| 1617 | bool print_addresses) { |
| 1618 | for (uint32_t i = 0; i < sect_size; i += sizeof(double)) { |
| 1619 | if (print_addresses) { |
| 1620 | if (O->is64Bit()) |
| 1621 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
| 1622 | else |
| 1623 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
| 1624 | } |
| 1625 | double d; |
| 1626 | memcpy(&d, sect + i, sizeof(double)); |
| 1627 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1628 | sys::swapByteOrder(d); |
| 1629 | uint32_t l0, l1; |
| 1630 | memcpy(&l0, sect + i, sizeof(uint32_t)); |
| 1631 | memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); |
| 1632 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
| 1633 | sys::swapByteOrder(l0); |
| 1634 | sys::swapByteOrder(l1); |
| 1635 | } |
| 1636 | DumpLiteral8(O, l0, l1, d); |
| 1637 | } |
| 1638 | } |
| 1639 | |
| 1640 | static void DumpLiteral16(uint32_t l0, uint32_t l1, uint32_t l2, uint32_t l3) { |
| 1641 | outs() << format("0x%08" PRIx32"x", l0) << " "; |
| 1642 | outs() << format("0x%08" PRIx32"x", l1) << " "; |
| 1643 | outs() << format("0x%08" PRIx32"x", l2) << " "; |
| 1644 | outs() << format("0x%08" PRIx32"x", l3) << "\n"; |
| 1645 | } |
| 1646 | |
| 1647 | static void DumpLiteral16Section(MachOObjectFile *O, const char *sect, |
| 1648 | uint32_t sect_size, uint64_t sect_addr, |
| 1649 | bool print_addresses) { |
| 1650 | for (uint32_t i = 0; i < sect_size; i += 16) { |
| 1651 | if (print_addresses) { |
| 1652 | if (O->is64Bit()) |
| 1653 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
| 1654 | else |
| 1655 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
| 1656 | } |
| 1657 | uint32_t l0, l1, l2, l3; |
| 1658 | memcpy(&l0, sect + i, sizeof(uint32_t)); |
| 1659 | memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); |
| 1660 | memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t)); |
| 1661 | memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t)); |
| 1662 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
| 1663 | sys::swapByteOrder(l0); |
| 1664 | sys::swapByteOrder(l1); |
| 1665 | sys::swapByteOrder(l2); |
| 1666 | sys::swapByteOrder(l3); |
| 1667 | } |
| 1668 | DumpLiteral16(l0, l1, l2, l3); |
| 1669 | } |
| 1670 | } |
| 1671 | |
| 1672 | static void DumpLiteralPointerSection(MachOObjectFile *O, |
| 1673 | const SectionRef &Section, |
| 1674 | const char *sect, uint32_t sect_size, |
| 1675 | uint64_t sect_addr, |
| 1676 | bool print_addresses) { |
| 1677 | // Collect the literal sections in this Mach-O file. |
| 1678 | std::vector<SectionRef> LiteralSections; |
| 1679 | for (const SectionRef &Section : O->sections()) { |
| 1680 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
| 1681 | uint32_t section_type; |
| 1682 | if (O->is64Bit()) { |
| 1683 | const MachO::section_64 Sec = O->getSection64(Ref); |
| 1684 | section_type = Sec.flags & MachO::SECTION_TYPE; |
| 1685 | } else { |
| 1686 | const MachO::section Sec = O->getSection(Ref); |
| 1687 | section_type = Sec.flags & MachO::SECTION_TYPE; |
| 1688 | } |
| 1689 | if (section_type == MachO::S_CSTRING_LITERALS || |
| 1690 | section_type == MachO::S_4BYTE_LITERALS || |
| 1691 | section_type == MachO::S_8BYTE_LITERALS || |
| 1692 | section_type == MachO::S_16BYTE_LITERALS) |
| 1693 | LiteralSections.push_back(Section); |
| 1694 | } |
| 1695 | |
| 1696 | // Set the size of the literal pointer. |
| 1697 | uint32_t lp_size = O->is64Bit() ? 8 : 4; |
| 1698 | |
| 1699 | // Collect the external relocation symbols for the literal pointers. |
| 1700 | std::vector<std::pair<uint64_t, SymbolRef>> Relocs; |
| 1701 | for (const RelocationRef &Reloc : Section.relocations()) { |
| 1702 | DataRefImpl Rel; |
| 1703 | MachO::any_relocation_info RE; |
| 1704 | bool isExtern = false; |
| 1705 | Rel = Reloc.getRawDataRefImpl(); |
| 1706 | RE = O->getRelocation(Rel); |
| 1707 | isExtern = O->getPlainRelocationExternal(RE); |
| 1708 | if (isExtern) { |
| 1709 | uint64_t RelocOffset = Reloc.getOffset(); |
| 1710 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 1711 | Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); |
| 1712 | } |
| 1713 | } |
| 1714 | array_pod_sort(Relocs.begin(), Relocs.end()); |
| 1715 | |
| 1716 | // Dump each literal pointer. |
| 1717 | for (uint32_t i = 0; i < sect_size; i += lp_size) { |
| 1718 | if (print_addresses) { |
| 1719 | if (O->is64Bit()) |
| 1720 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
| 1721 | else |
| 1722 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
| 1723 | } |
| 1724 | uint64_t lp; |
| 1725 | if (O->is64Bit()) { |
| 1726 | memcpy(&lp, sect + i, sizeof(uint64_t)); |
| 1727 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1728 | sys::swapByteOrder(lp); |
| 1729 | } else { |
| 1730 | uint32_t li; |
| 1731 | memcpy(&li, sect + i, sizeof(uint32_t)); |
| 1732 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1733 | sys::swapByteOrder(li); |
| 1734 | lp = li; |
| 1735 | } |
| 1736 | |
| 1737 | // First look for an external relocation entry for this literal pointer. |
| 1738 | auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { |
| 1739 | return P.first == i; |
| 1740 | }); |
| 1741 | if (Reloc != Relocs.end()) { |
| 1742 | symbol_iterator RelocSym = Reloc->second; |
| 1743 | StringRef SymName = unwrapOrError(RelocSym->getName(), O->getFileName()); |
| 1744 | outs() << "external relocation entry for symbol:" << SymName << "\n"; |
| 1745 | continue; |
| 1746 | } |
| 1747 | |
| 1748 | // For local references see what the section the literal pointer points to. |
| 1749 | auto Sect = find_if(LiteralSections, [&](const SectionRef &R) { |
| 1750 | return lp >= R.getAddress() && lp < R.getAddress() + R.getSize(); |
| 1751 | }); |
| 1752 | if (Sect == LiteralSections.end()) { |
| 1753 | outs() << format("0x%" PRIx64"l" "x", lp) << " (not in a literal section)\n"; |
| 1754 | continue; |
| 1755 | } |
| 1756 | |
| 1757 | uint64_t SectAddress = Sect->getAddress(); |
| 1758 | uint64_t SectSize = Sect->getSize(); |
| 1759 | |
| 1760 | StringRef SectName; |
| 1761 | Expected<StringRef> SectNameOrErr = Sect->getName(); |
| 1762 | if (SectNameOrErr) |
| 1763 | SectName = *SectNameOrErr; |
| 1764 | else |
| 1765 | consumeError(SectNameOrErr.takeError()); |
| 1766 | |
| 1767 | DataRefImpl Ref = Sect->getRawDataRefImpl(); |
| 1768 | StringRef SegmentName = O->getSectionFinalSegmentName(Ref); |
| 1769 | outs() << SegmentName << ":" << SectName << ":"; |
| 1770 | |
| 1771 | uint32_t section_type; |
| 1772 | if (O->is64Bit()) { |
| 1773 | const MachO::section_64 Sec = O->getSection64(Ref); |
| 1774 | section_type = Sec.flags & MachO::SECTION_TYPE; |
| 1775 | } else { |
| 1776 | const MachO::section Sec = O->getSection(Ref); |
| 1777 | section_type = Sec.flags & MachO::SECTION_TYPE; |
| 1778 | } |
| 1779 | |
| 1780 | StringRef BytesStr = unwrapOrError(Sect->getContents(), O->getFileName()); |
| 1781 | |
| 1782 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
| 1783 | |
| 1784 | switch (section_type) { |
| 1785 | case MachO::S_CSTRING_LITERALS: |
| 1786 | for (uint64_t i = lp - SectAddress; i < SectSize && Contents[i] != '\0'; |
| 1787 | i++) { |
| 1788 | DumpCstringChar(Contents[i]); |
| 1789 | } |
| 1790 | outs() << "\n"; |
| 1791 | break; |
| 1792 | case MachO::S_4BYTE_LITERALS: |
| 1793 | float f; |
| 1794 | memcpy(&f, Contents + (lp - SectAddress), sizeof(float)); |
| 1795 | uint32_t l; |
| 1796 | memcpy(&l, Contents + (lp - SectAddress), sizeof(uint32_t)); |
| 1797 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
| 1798 | sys::swapByteOrder(f); |
| 1799 | sys::swapByteOrder(l); |
| 1800 | } |
| 1801 | DumpLiteral4(l, f); |
| 1802 | break; |
| 1803 | case MachO::S_8BYTE_LITERALS: { |
| 1804 | double d; |
| 1805 | memcpy(&d, Contents + (lp - SectAddress), sizeof(double)); |
| 1806 | uint32_t l0, l1; |
| 1807 | memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); |
| 1808 | memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), |
| 1809 | sizeof(uint32_t)); |
| 1810 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
| 1811 | sys::swapByteOrder(f); |
| 1812 | sys::swapByteOrder(l0); |
| 1813 | sys::swapByteOrder(l1); |
| 1814 | } |
| 1815 | DumpLiteral8(O, l0, l1, d); |
| 1816 | break; |
| 1817 | } |
| 1818 | case MachO::S_16BYTE_LITERALS: { |
| 1819 | uint32_t l0, l1, l2, l3; |
| 1820 | memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); |
| 1821 | memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), |
| 1822 | sizeof(uint32_t)); |
| 1823 | memcpy(&l2, Contents + (lp - SectAddress) + 2 * sizeof(uint32_t), |
| 1824 | sizeof(uint32_t)); |
| 1825 | memcpy(&l3, Contents + (lp - SectAddress) + 3 * sizeof(uint32_t), |
| 1826 | sizeof(uint32_t)); |
| 1827 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
| 1828 | sys::swapByteOrder(l0); |
| 1829 | sys::swapByteOrder(l1); |
| 1830 | sys::swapByteOrder(l2); |
| 1831 | sys::swapByteOrder(l3); |
| 1832 | } |
| 1833 | DumpLiteral16(l0, l1, l2, l3); |
| 1834 | break; |
| 1835 | } |
| 1836 | } |
| 1837 | } |
| 1838 | } |
| 1839 | |
| 1840 | static void DumpInitTermPointerSection(MachOObjectFile *O, |
| 1841 | const SectionRef &Section, |
| 1842 | const char *sect, |
| 1843 | uint32_t sect_size, uint64_t sect_addr, |
| 1844 | SymbolAddressMap *AddrMap, |
| 1845 | bool verbose) { |
| 1846 | uint32_t stride; |
| 1847 | stride = (O->is64Bit()) ? sizeof(uint64_t) : sizeof(uint32_t); |
| 1848 | |
| 1849 | // Collect the external relocation symbols for the pointers. |
| 1850 | std::vector<std::pair<uint64_t, SymbolRef>> Relocs; |
| 1851 | for (const RelocationRef &Reloc : Section.relocations()) { |
| 1852 | DataRefImpl Rel; |
| 1853 | MachO::any_relocation_info RE; |
| 1854 | bool isExtern = false; |
| 1855 | Rel = Reloc.getRawDataRefImpl(); |
| 1856 | RE = O->getRelocation(Rel); |
| 1857 | isExtern = O->getPlainRelocationExternal(RE); |
| 1858 | if (isExtern) { |
| 1859 | uint64_t RelocOffset = Reloc.getOffset(); |
| 1860 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 1861 | Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); |
| 1862 | } |
| 1863 | } |
| 1864 | array_pod_sort(Relocs.begin(), Relocs.end()); |
| 1865 | |
| 1866 | for (uint32_t i = 0; i < sect_size; i += stride) { |
| 1867 | const char *SymbolName = nullptr; |
| 1868 | uint64_t p; |
| 1869 | if (O->is64Bit()) { |
| 1870 | outs() << format("0x%016" PRIx64"l" "x", sect_addr + i * stride) << " "; |
| 1871 | uint64_t pointer_value; |
| 1872 | memcpy(&pointer_value, sect + i, stride); |
| 1873 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1874 | sys::swapByteOrder(pointer_value); |
| 1875 | outs() << format("0x%016" PRIx64"l" "x", pointer_value); |
| 1876 | p = pointer_value; |
| 1877 | } else { |
| 1878 | outs() << format("0x%08" PRIx64"l" "x", sect_addr + i * stride) << " "; |
| 1879 | uint32_t pointer_value; |
| 1880 | memcpy(&pointer_value, sect + i, stride); |
| 1881 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1882 | sys::swapByteOrder(pointer_value); |
| 1883 | outs() << format("0x%08" PRIx32"x", pointer_value); |
| 1884 | p = pointer_value; |
| 1885 | } |
| 1886 | if (verbose) { |
| 1887 | // First look for an external relocation entry for this pointer. |
| 1888 | auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { |
| 1889 | return P.first == i; |
| 1890 | }); |
| 1891 | if (Reloc != Relocs.end()) { |
| 1892 | symbol_iterator RelocSym = Reloc->second; |
| 1893 | outs() << " " << unwrapOrError(RelocSym->getName(), O->getFileName()); |
| 1894 | } else { |
| 1895 | SymbolName = GuessSymbolName(p, AddrMap); |
| 1896 | if (SymbolName) |
| 1897 | outs() << " " << SymbolName; |
| 1898 | } |
| 1899 | } |
| 1900 | outs() << "\n"; |
| 1901 | } |
| 1902 | } |
| 1903 | |
| 1904 | static void DumpRawSectionContents(MachOObjectFile *O, const char *sect, |
| 1905 | uint32_t size, uint64_t addr) { |
| 1906 | uint32_t cputype = O->getHeader().cputype; |
| 1907 | if (cputype == MachO::CPU_TYPE_I386 || cputype == MachO::CPU_TYPE_X86_64) { |
| 1908 | uint32_t j; |
| 1909 | for (uint32_t i = 0; i < size; i += j, addr += j) { |
| 1910 | if (O->is64Bit()) |
| 1911 | outs() << format("%016" PRIx64"l" "x", addr) << "\t"; |
| 1912 | else |
| 1913 | outs() << format("%08" PRIx64"l" "x", addr) << "\t"; |
| 1914 | for (j = 0; j < 16 && i + j < size; j++) { |
| 1915 | uint8_t byte_word = *(sect + i + j); |
| 1916 | outs() << format("%02" PRIx32"x", (uint32_t)byte_word) << " "; |
| 1917 | } |
| 1918 | outs() << "\n"; |
| 1919 | } |
| 1920 | } else { |
| 1921 | uint32_t j; |
| 1922 | for (uint32_t i = 0; i < size; i += j, addr += j) { |
| 1923 | if (O->is64Bit()) |
| 1924 | outs() << format("%016" PRIx64"l" "x", addr) << "\t"; |
| 1925 | else |
| 1926 | outs() << format("%08" PRIx64"l" "x", addr) << "\t"; |
| 1927 | for (j = 0; j < 4 * sizeof(int32_t) && i + j < size; |
| 1928 | j += sizeof(int32_t)) { |
| 1929 | if (i + j + sizeof(int32_t) <= size) { |
| 1930 | uint32_t long_word; |
| 1931 | memcpy(&long_word, sect + i + j, sizeof(int32_t)); |
| 1932 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 1933 | sys::swapByteOrder(long_word); |
| 1934 | outs() << format("%08" PRIx32"x", long_word) << " "; |
| 1935 | } else { |
| 1936 | for (uint32_t k = 0; i + j + k < size; k++) { |
| 1937 | uint8_t byte_word = *(sect + i + j + k); |
| 1938 | outs() << format("%02" PRIx32"x", (uint32_t)byte_word) << " "; |
| 1939 | } |
| 1940 | } |
| 1941 | } |
| 1942 | outs() << "\n"; |
| 1943 | } |
| 1944 | } |
| 1945 | } |
| 1946 | |
| 1947 | static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, |
| 1948 | StringRef DisSegName, StringRef DisSectName); |
| 1949 | static void DumpProtocolSection(MachOObjectFile *O, const char *sect, |
| 1950 | uint32_t size, uint32_t addr); |
| 1951 | #ifdef LLVM_HAVE_LIBXAR |
| 1952 | static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, |
| 1953 | uint32_t size, bool verbose, |
| 1954 | bool PrintXarHeader, bool PrintXarFileHeaders, |
| 1955 | std::string XarMemberName); |
| 1956 | #endif // defined(LLVM_HAVE_LIBXAR) |
| 1957 | |
| 1958 | static void DumpSectionContents(StringRef Filename, MachOObjectFile *O, |
| 1959 | bool verbose) { |
| 1960 | SymbolAddressMap AddrMap; |
| 1961 | if (verbose) |
| 1962 | CreateSymbolAddressMap(O, &AddrMap); |
| 1963 | |
| 1964 | for (unsigned i = 0; i < FilterSections.size(); ++i) { |
| 1965 | StringRef DumpSection = FilterSections[i]; |
| 1966 | std::pair<StringRef, StringRef> DumpSegSectName; |
| 1967 | DumpSegSectName = DumpSection.split(','); |
| 1968 | StringRef DumpSegName, DumpSectName; |
| 1969 | if (!DumpSegSectName.second.empty()) { |
| 1970 | DumpSegName = DumpSegSectName.first; |
| 1971 | DumpSectName = DumpSegSectName.second; |
| 1972 | } else { |
| 1973 | DumpSegName = ""; |
| 1974 | DumpSectName = DumpSegSectName.first; |
| 1975 | } |
| 1976 | for (const SectionRef &Section : O->sections()) { |
| 1977 | StringRef SectName; |
| 1978 | Expected<StringRef> SecNameOrErr = Section.getName(); |
| 1979 | if (SecNameOrErr) |
| 1980 | SectName = *SecNameOrErr; |
| 1981 | else |
| 1982 | consumeError(SecNameOrErr.takeError()); |
| 1983 | |
| 1984 | if (!DumpSection.empty()) |
| 1985 | FoundSectionSet.insert(DumpSection); |
| 1986 | |
| 1987 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
| 1988 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
| 1989 | if ((DumpSegName.empty() || SegName == DumpSegName) && |
| 1990 | (SectName == DumpSectName)) { |
| 1991 | |
| 1992 | uint32_t section_flags; |
| 1993 | if (O->is64Bit()) { |
| 1994 | const MachO::section_64 Sec = O->getSection64(Ref); |
| 1995 | section_flags = Sec.flags; |
| 1996 | |
| 1997 | } else { |
| 1998 | const MachO::section Sec = O->getSection(Ref); |
| 1999 | section_flags = Sec.flags; |
| 2000 | } |
| 2001 | uint32_t section_type = section_flags & MachO::SECTION_TYPE; |
| 2002 | |
| 2003 | StringRef BytesStr = |
| 2004 | unwrapOrError(Section.getContents(), O->getFileName()); |
| 2005 | const char *sect = reinterpret_cast<const char *>(BytesStr.data()); |
| 2006 | uint32_t sect_size = BytesStr.size(); |
| 2007 | uint64_t sect_addr = Section.getAddress(); |
| 2008 | |
| 2009 | if (LeadingHeaders) |
| 2010 | outs() << "Contents of (" << SegName << "," << SectName |
| 2011 | << ") section\n"; |
| 2012 | |
| 2013 | if (verbose) { |
| 2014 | if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) || |
| 2015 | (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) { |
| 2016 | DisassembleMachO(Filename, O, SegName, SectName); |
| 2017 | continue; |
| 2018 | } |
| 2019 | if (SegName == "__TEXT" && SectName == "__info_plist") { |
| 2020 | outs() << sect; |
| 2021 | continue; |
| 2022 | } |
| 2023 | if (SegName == "__OBJC" && SectName == "__protocol") { |
| 2024 | DumpProtocolSection(O, sect, sect_size, sect_addr); |
| 2025 | continue; |
| 2026 | } |
| 2027 | #ifdef LLVM_HAVE_LIBXAR |
| 2028 | if (SegName == "__LLVM" && SectName == "__bundle") { |
| 2029 | DumpBitcodeSection(O, sect, sect_size, verbose, SymbolicOperands, |
| 2030 | ArchiveHeaders, ""); |
| 2031 | continue; |
| 2032 | } |
| 2033 | #endif // defined(LLVM_HAVE_LIBXAR) |
| 2034 | switch (section_type) { |
| 2035 | case MachO::S_REGULAR: |
| 2036 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
| 2037 | break; |
| 2038 | case MachO::S_ZEROFILL: |
| 2039 | outs() << "zerofill section and has no contents in the file\n"; |
| 2040 | break; |
| 2041 | case MachO::S_CSTRING_LITERALS: |
| 2042 | DumpCstringSection(O, sect, sect_size, sect_addr, LeadingAddr); |
| 2043 | break; |
| 2044 | case MachO::S_4BYTE_LITERALS: |
| 2045 | DumpLiteral4Section(O, sect, sect_size, sect_addr, LeadingAddr); |
| 2046 | break; |
| 2047 | case MachO::S_8BYTE_LITERALS: |
| 2048 | DumpLiteral8Section(O, sect, sect_size, sect_addr, LeadingAddr); |
| 2049 | break; |
| 2050 | case MachO::S_16BYTE_LITERALS: |
| 2051 | DumpLiteral16Section(O, sect, sect_size, sect_addr, LeadingAddr); |
| 2052 | break; |
| 2053 | case MachO::S_LITERAL_POINTERS: |
| 2054 | DumpLiteralPointerSection(O, Section, sect, sect_size, sect_addr, |
| 2055 | LeadingAddr); |
| 2056 | break; |
| 2057 | case MachO::S_MOD_INIT_FUNC_POINTERS: |
| 2058 | case MachO::S_MOD_TERM_FUNC_POINTERS: |
| 2059 | DumpInitTermPointerSection(O, Section, sect, sect_size, sect_addr, |
| 2060 | &AddrMap, verbose); |
| 2061 | break; |
| 2062 | default: |
| 2063 | outs() << "Unknown section type (" |
| 2064 | << format("0x%08" PRIx32"x", section_type) << ")\n"; |
| 2065 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
| 2066 | break; |
| 2067 | } |
| 2068 | } else { |
| 2069 | if (section_type == MachO::S_ZEROFILL) |
| 2070 | outs() << "zerofill section and has no contents in the file\n"; |
| 2071 | else |
| 2072 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
| 2073 | } |
| 2074 | } |
| 2075 | } |
| 2076 | } |
| 2077 | } |
| 2078 | |
| 2079 | static void DumpInfoPlistSectionContents(StringRef Filename, |
| 2080 | MachOObjectFile *O) { |
| 2081 | for (const SectionRef &Section : O->sections()) { |
| 2082 | StringRef SectName; |
| 2083 | Expected<StringRef> SecNameOrErr = Section.getName(); |
| 2084 | if (SecNameOrErr) |
| 2085 | SectName = *SecNameOrErr; |
| 2086 | else |
| 2087 | consumeError(SecNameOrErr.takeError()); |
| 2088 | |
| 2089 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
| 2090 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
| 2091 | if (SegName == "__TEXT" && SectName == "__info_plist") { |
| 2092 | if (LeadingHeaders) |
| 2093 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 2094 | StringRef BytesStr = |
| 2095 | unwrapOrError(Section.getContents(), O->getFileName()); |
| 2096 | const char *sect = reinterpret_cast<const char *>(BytesStr.data()); |
| 2097 | outs() << format("%.*s", BytesStr.size(), sect) << "\n"; |
| 2098 | return; |
| 2099 | } |
| 2100 | } |
| 2101 | } |
| 2102 | |
| 2103 | // checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file |
| 2104 | // and if it is and there is a list of architecture flags is specified then |
| 2105 | // check to make sure this Mach-O file is one of those architectures or all |
| 2106 | // architectures were specified. If not then an error is generated and this |
| 2107 | // routine returns false. Else it returns true. |
| 2108 | static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) { |
| 2109 | auto *MachO = dyn_cast<MachOObjectFile>(O); |
| 2110 | |
| 2111 | if (!MachO || ArchAll || ArchFlags.empty()) |
| 2112 | return true; |
| 2113 | |
| 2114 | MachO::mach_header H; |
| 2115 | MachO::mach_header_64 H_64; |
| 2116 | Triple T; |
| 2117 | const char *McpuDefault, *ArchFlag; |
| 2118 | if (MachO->is64Bit()) { |
| 2119 | H_64 = MachO->MachOObjectFile::getHeader64(); |
| 2120 | T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype, |
| 2121 | &McpuDefault, &ArchFlag); |
| 2122 | } else { |
| 2123 | H = MachO->MachOObjectFile::getHeader(); |
| 2124 | T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype, |
| 2125 | &McpuDefault, &ArchFlag); |
| 2126 | } |
| 2127 | const std::string ArchFlagName(ArchFlag); |
| 2128 | if (!llvm::is_contained(ArchFlags, ArchFlagName)) { |
| 2129 | WithColor::error(errs(), "llvm-objdump") |
| 2130 | << Filename << ": no architecture specified.\n"; |
| 2131 | return false; |
| 2132 | } |
| 2133 | return true; |
| 2134 | } |
| 2135 | |
| 2136 | static void printObjcMetaData(MachOObjectFile *O, bool verbose); |
| 2137 | |
| 2138 | // ProcessMachO() is passed a single opened Mach-O file, which may be an |
| 2139 | // archive member and or in a slice of a universal file. It prints the |
| 2140 | // the file name and header info and then processes it according to the |
| 2141 | // command line options. |
| 2142 | static void ProcessMachO(StringRef Name, MachOObjectFile *MachOOF, |
| 2143 | StringRef ArchiveMemberName = StringRef(), |
| 2144 | StringRef ArchitectureName = StringRef()) { |
| 2145 | // If we are doing some processing here on the Mach-O file print the header |
| 2146 | // info. And don't print it otherwise like in the case of printing the |
| 2147 | // UniversalHeaders or ArchiveHeaders. |
| 2148 | if (Disassemble || Relocations || PrivateHeaders || ExportsTrie || Rebase || |
| 2149 | Bind || SymbolTable || LazyBind || WeakBind || IndirectSymbols || |
| 2150 | DataInCode || FunctionStartsType != FunctionStartsMode::None || |
| 2151 | LinkOptHints || ChainedFixups || DyldInfo || DylibsUsed || DylibId || |
| 2152 | Rpaths || ObjcMetaData || (!FilterSections.empty())) { |
| 2153 | if (LeadingHeaders) { |
| 2154 | outs() << Name; |
| 2155 | if (!ArchiveMemberName.empty()) |
| 2156 | outs() << '(' << ArchiveMemberName << ')'; |
| 2157 | if (!ArchitectureName.empty()) |
| 2158 | outs() << " (architecture " << ArchitectureName << ")"; |
| 2159 | outs() << ":\n"; |
| 2160 | } |
| 2161 | } |
| 2162 | // To use the report_error() form with an ArchiveName and FileName set |
| 2163 | // these up based on what is passed for Name and ArchiveMemberName. |
| 2164 | StringRef ArchiveName; |
| 2165 | StringRef FileName; |
| 2166 | if (!ArchiveMemberName.empty()) { |
| 2167 | ArchiveName = Name; |
| 2168 | FileName = ArchiveMemberName; |
| 2169 | } else { |
| 2170 | ArchiveName = StringRef(); |
| 2171 | FileName = Name; |
| 2172 | } |
| 2173 | |
| 2174 | // If we need the symbol table to do the operation then check it here to |
| 2175 | // produce a good error message as to where the Mach-O file comes from in |
| 2176 | // the error message. |
| 2177 | if (Disassemble || IndirectSymbols || !FilterSections.empty() || UnwindInfo) |
| 2178 | if (Error Err = MachOOF->checkSymbolTable()) |
| 2179 | reportError(std::move(Err), FileName, ArchiveName, ArchitectureName); |
| 2180 | |
| 2181 | if (DisassembleAll) { |
| 2182 | for (const SectionRef &Section : MachOOF->sections()) { |
| 2183 | StringRef SectName; |
| 2184 | if (Expected<StringRef> NameOrErr = Section.getName()) |
| 2185 | SectName = *NameOrErr; |
| 2186 | else |
| 2187 | consumeError(NameOrErr.takeError()); |
| 2188 | |
| 2189 | if (SectName.equals("__text")) { |
| 2190 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
| 2191 | StringRef SegName = MachOOF->getSectionFinalSegmentName(Ref); |
| 2192 | DisassembleMachO(FileName, MachOOF, SegName, SectName); |
| 2193 | } |
| 2194 | } |
| 2195 | } |
| 2196 | else if (Disassemble) { |
| 2197 | if (MachOOF->getHeader().filetype == MachO::MH_KEXT_BUNDLE && |
| 2198 | MachOOF->getHeader().cputype == MachO::CPU_TYPE_ARM64) |
| 2199 | DisassembleMachO(FileName, MachOOF, "__TEXT_EXEC", "__text"); |
| 2200 | else |
| 2201 | DisassembleMachO(FileName, MachOOF, "__TEXT", "__text"); |
| 2202 | } |
| 2203 | if (IndirectSymbols) |
| 2204 | PrintIndirectSymbols(MachOOF, Verbose); |
| 2205 | if (DataInCode) |
| 2206 | PrintDataInCodeTable(MachOOF, Verbose); |
| 2207 | if (FunctionStartsType != FunctionStartsMode::None) |
| 2208 | PrintFunctionStarts(MachOOF); |
| 2209 | if (LinkOptHints) |
| 2210 | PrintLinkOptHints(MachOOF); |
| 2211 | if (Relocations) |
| 2212 | PrintRelocations(MachOOF, Verbose); |
| 2213 | if (SectionHeaders) |
| 2214 | printSectionHeaders(*MachOOF); |
| 2215 | if (SectionContents) |
| 2216 | printSectionContents(MachOOF); |
| 2217 | if (!FilterSections.empty()) |
| 2218 | DumpSectionContents(FileName, MachOOF, Verbose); |
| 2219 | if (InfoPlist) |
| 2220 | DumpInfoPlistSectionContents(FileName, MachOOF); |
| 2221 | if (DyldInfo) |
| 2222 | PrintDyldInfo(MachOOF); |
| 2223 | if (ChainedFixups) |
| 2224 | PrintChainedFixups(MachOOF); |
| 2225 | if (DylibsUsed) |
| 2226 | PrintDylibs(MachOOF, false); |
| 2227 | if (DylibId) |
| 2228 | PrintDylibs(MachOOF, true); |
| 2229 | if (SymbolTable) |
| 2230 | printSymbolTable(*MachOOF, ArchiveName, ArchitectureName); |
| 2231 | if (UnwindInfo) |
| 2232 | printMachOUnwindInfo(MachOOF); |
| 2233 | if (PrivateHeaders) { |
| 2234 | printMachOFileHeader(MachOOF); |
| 2235 | printMachOLoadCommands(MachOOF); |
| 2236 | } |
| 2237 | if (FirstPrivateHeader) |
| 2238 | printMachOFileHeader(MachOOF); |
| 2239 | if (ObjcMetaData) |
| 2240 | printObjcMetaData(MachOOF, Verbose); |
| 2241 | if (ExportsTrie) |
| 2242 | printExportsTrie(MachOOF); |
| 2243 | if (Rebase) |
| 2244 | printRebaseTable(MachOOF); |
| 2245 | if (Rpaths) |
| 2246 | printRpaths(MachOOF); |
| 2247 | if (Bind) |
| 2248 | printBindTable(MachOOF); |
| 2249 | if (LazyBind) |
| 2250 | printLazyBindTable(MachOOF); |
| 2251 | if (WeakBind) |
| 2252 | printWeakBindTable(MachOOF); |
| 2253 | |
| 2254 | if (DwarfDumpType != DIDT_Null) { |
| 2255 | std::unique_ptr<DIContext> DICtx = DWARFContext::create(*MachOOF); |
| 2256 | // Dump the complete DWARF structure. |
| 2257 | DIDumpOptions DumpOpts; |
| 2258 | DumpOpts.DumpType = DwarfDumpType; |
| 2259 | DICtx->dump(outs(), DumpOpts); |
| 2260 | } |
| 2261 | } |
| 2262 | |
| 2263 | // printUnknownCPUType() helps print_fat_headers for unknown CPU's. |
| 2264 | static void printUnknownCPUType(uint32_t cputype, uint32_t cpusubtype) { |
| 2265 | outs() << " cputype (" << cputype << ")\n"; |
| 2266 | outs() << " cpusubtype (" << cpusubtype << ")\n"; |
| 2267 | } |
| 2268 | |
| 2269 | // printCPUType() helps print_fat_headers by printing the cputype and |
| 2270 | // pusubtype (symbolically for the one's it knows about). |
| 2271 | static void printCPUType(uint32_t cputype, uint32_t cpusubtype) { |
| 2272 | switch (cputype) { |
| 2273 | case MachO::CPU_TYPE_I386: |
| 2274 | switch (cpusubtype) { |
| 2275 | case MachO::CPU_SUBTYPE_I386_ALL: |
| 2276 | outs() << " cputype CPU_TYPE_I386\n"; |
| 2277 | outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n"; |
| 2278 | break; |
| 2279 | default: |
| 2280 | printUnknownCPUType(cputype, cpusubtype); |
| 2281 | break; |
| 2282 | } |
| 2283 | break; |
| 2284 | case MachO::CPU_TYPE_X86_64: |
| 2285 | switch (cpusubtype) { |
| 2286 | case MachO::CPU_SUBTYPE_X86_64_ALL: |
| 2287 | outs() << " cputype CPU_TYPE_X86_64\n"; |
| 2288 | outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n"; |
| 2289 | break; |
| 2290 | case MachO::CPU_SUBTYPE_X86_64_H: |
| 2291 | outs() << " cputype CPU_TYPE_X86_64\n"; |
| 2292 | outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n"; |
| 2293 | break; |
| 2294 | default: |
| 2295 | printUnknownCPUType(cputype, cpusubtype); |
| 2296 | break; |
| 2297 | } |
| 2298 | break; |
| 2299 | case MachO::CPU_TYPE_ARM: |
| 2300 | switch (cpusubtype) { |
| 2301 | case MachO::CPU_SUBTYPE_ARM_ALL: |
| 2302 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2303 | outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n"; |
| 2304 | break; |
| 2305 | case MachO::CPU_SUBTYPE_ARM_V4T: |
| 2306 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2307 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n"; |
| 2308 | break; |
| 2309 | case MachO::CPU_SUBTYPE_ARM_V5TEJ: |
| 2310 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2311 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n"; |
| 2312 | break; |
| 2313 | case MachO::CPU_SUBTYPE_ARM_XSCALE: |
| 2314 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2315 | outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n"; |
| 2316 | break; |
| 2317 | case MachO::CPU_SUBTYPE_ARM_V6: |
| 2318 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2319 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n"; |
| 2320 | break; |
| 2321 | case MachO::CPU_SUBTYPE_ARM_V6M: |
| 2322 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2323 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n"; |
| 2324 | break; |
| 2325 | case MachO::CPU_SUBTYPE_ARM_V7: |
| 2326 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2327 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n"; |
| 2328 | break; |
| 2329 | case MachO::CPU_SUBTYPE_ARM_V7EM: |
| 2330 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2331 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n"; |
| 2332 | break; |
| 2333 | case MachO::CPU_SUBTYPE_ARM_V7K: |
| 2334 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2335 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n"; |
| 2336 | break; |
| 2337 | case MachO::CPU_SUBTYPE_ARM_V7M: |
| 2338 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2339 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n"; |
| 2340 | break; |
| 2341 | case MachO::CPU_SUBTYPE_ARM_V7S: |
| 2342 | outs() << " cputype CPU_TYPE_ARM\n"; |
| 2343 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n"; |
| 2344 | break; |
| 2345 | default: |
| 2346 | printUnknownCPUType(cputype, cpusubtype); |
| 2347 | break; |
| 2348 | } |
| 2349 | break; |
| 2350 | case MachO::CPU_TYPE_ARM64: |
| 2351 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 2352 | case MachO::CPU_SUBTYPE_ARM64_ALL: |
| 2353 | outs() << " cputype CPU_TYPE_ARM64\n"; |
| 2354 | outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n"; |
| 2355 | break; |
| 2356 | case MachO::CPU_SUBTYPE_ARM64_V8: |
| 2357 | outs() << " cputype CPU_TYPE_ARM64\n"; |
| 2358 | outs() << " cpusubtype CPU_SUBTYPE_ARM64_V8\n"; |
| 2359 | break; |
| 2360 | case MachO::CPU_SUBTYPE_ARM64E: |
| 2361 | outs() << " cputype CPU_TYPE_ARM64\n"; |
| 2362 | outs() << " cpusubtype CPU_SUBTYPE_ARM64E\n"; |
| 2363 | break; |
| 2364 | default: |
| 2365 | printUnknownCPUType(cputype, cpusubtype); |
| 2366 | break; |
| 2367 | } |
| 2368 | break; |
| 2369 | case MachO::CPU_TYPE_ARM64_32: |
| 2370 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 2371 | case MachO::CPU_SUBTYPE_ARM64_32_V8: |
| 2372 | outs() << " cputype CPU_TYPE_ARM64_32\n"; |
| 2373 | outs() << " cpusubtype CPU_SUBTYPE_ARM64_32_V8\n"; |
| 2374 | break; |
| 2375 | default: |
| 2376 | printUnknownCPUType(cputype, cpusubtype); |
| 2377 | break; |
| 2378 | } |
| 2379 | break; |
| 2380 | default: |
| 2381 | printUnknownCPUType(cputype, cpusubtype); |
| 2382 | break; |
| 2383 | } |
| 2384 | } |
| 2385 | |
| 2386 | static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB, |
| 2387 | bool verbose) { |
| 2388 | outs() << "Fat headers\n"; |
| 2389 | if (verbose) { |
| 2390 | if (UB->getMagic() == MachO::FAT_MAGIC) |
| 2391 | outs() << "fat_magic FAT_MAGIC\n"; |
| 2392 | else // UB->getMagic() == MachO::FAT_MAGIC_64 |
| 2393 | outs() << "fat_magic FAT_MAGIC_64\n"; |
| 2394 | } else |
| 2395 | outs() << "fat_magic " << format("0x%" PRIx32"x", MachO::FAT_MAGIC) << "\n"; |
| 2396 | |
| 2397 | uint32_t nfat_arch = UB->getNumberOfObjects(); |
| 2398 | StringRef Buf = UB->getData(); |
| 2399 | uint64_t size = Buf.size(); |
| 2400 | uint64_t big_size = sizeof(struct MachO::fat_header) + |
| 2401 | nfat_arch * sizeof(struct MachO::fat_arch); |
| 2402 | outs() << "nfat_arch " << UB->getNumberOfObjects(); |
| 2403 | if (nfat_arch == 0) |
| 2404 | outs() << " (malformed, contains zero architecture types)\n"; |
| 2405 | else if (big_size > size) |
| 2406 | outs() << " (malformed, architectures past end of file)\n"; |
| 2407 | else |
| 2408 | outs() << "\n"; |
| 2409 | |
| 2410 | for (uint32_t i = 0; i < nfat_arch; ++i) { |
| 2411 | MachOUniversalBinary::ObjectForArch OFA(UB, i); |
| 2412 | uint32_t cputype = OFA.getCPUType(); |
| 2413 | uint32_t cpusubtype = OFA.getCPUSubType(); |
| 2414 | outs() << "architecture "; |
| 2415 | for (uint32_t j = 0; i != 0 && j <= i - 1; j++) { |
| 2416 | MachOUniversalBinary::ObjectForArch other_OFA(UB, j); |
| 2417 | uint32_t other_cputype = other_OFA.getCPUType(); |
| 2418 | uint32_t other_cpusubtype = other_OFA.getCPUSubType(); |
| 2419 | if (cputype != 0 && cpusubtype != 0 && cputype == other_cputype && |
| 2420 | (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) == |
| 2421 | (other_cpusubtype & ~MachO::CPU_SUBTYPE_MASK)) { |
| 2422 | outs() << "(illegal duplicate architecture) "; |
| 2423 | break; |
| 2424 | } |
| 2425 | } |
| 2426 | if (verbose) { |
| 2427 | outs() << OFA.getArchFlagName() << "\n"; |
| 2428 | printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 2429 | } else { |
| 2430 | outs() << i << "\n"; |
| 2431 | outs() << " cputype " << cputype << "\n"; |
| 2432 | outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) |
| 2433 | << "\n"; |
| 2434 | } |
| 2435 | if (verbose && |
| 2436 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) |
| 2437 | outs() << " capabilities CPU_SUBTYPE_LIB64\n"; |
| 2438 | else |
| 2439 | outs() << " capabilities " |
| 2440 | << format("0x%" PRIx32"x", |
| 2441 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24) << "\n"; |
| 2442 | outs() << " offset " << OFA.getOffset(); |
| 2443 | if (OFA.getOffset() > size) |
| 2444 | outs() << " (past end of file)"; |
| 2445 | if (OFA.getOffset() % (1ull << OFA.getAlign()) != 0) |
| 2446 | outs() << " (not aligned on it's alignment (2^" << OFA.getAlign() << ")"; |
| 2447 | outs() << "\n"; |
| 2448 | outs() << " size " << OFA.getSize(); |
| 2449 | big_size = OFA.getOffset() + OFA.getSize(); |
| 2450 | if (big_size > size) |
| 2451 | outs() << " (past end of file)"; |
| 2452 | outs() << "\n"; |
| 2453 | outs() << " align 2^" << OFA.getAlign() << " (" << (1 << OFA.getAlign()) |
| 2454 | << ")\n"; |
| 2455 | } |
| 2456 | } |
| 2457 | |
| 2458 | static void printArchiveChild(StringRef Filename, const Archive::Child &C, |
| 2459 | size_t ChildIndex, bool verbose, |
| 2460 | bool print_offset, |
| 2461 | StringRef ArchitectureName = StringRef()) { |
| 2462 | if (print_offset) |
| 2463 | outs() << C.getChildOffset() << "\t"; |
| 2464 | sys::fs::perms Mode = |
| 2465 | unwrapOrError(C.getAccessMode(), getFileNameForError(C, ChildIndex), |
| 2466 | Filename, ArchitectureName); |
| 2467 | if (verbose) { |
| 2468 | // FIXME: this first dash, "-", is for (Mode & S_IFMT) == S_IFREG. |
| 2469 | // But there is nothing in sys::fs::perms for S_IFMT or S_IFREG. |
| 2470 | outs() << "-"; |
| 2471 | outs() << ((Mode & sys::fs::owner_read) ? "r" : "-"); |
| 2472 | outs() << ((Mode & sys::fs::owner_write) ? "w" : "-"); |
| 2473 | outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-"); |
| 2474 | outs() << ((Mode & sys::fs::group_read) ? "r" : "-"); |
| 2475 | outs() << ((Mode & sys::fs::group_write) ? "w" : "-"); |
| 2476 | outs() << ((Mode & sys::fs::group_exe) ? "x" : "-"); |
| 2477 | outs() << ((Mode & sys::fs::others_read) ? "r" : "-"); |
| 2478 | outs() << ((Mode & sys::fs::others_write) ? "w" : "-"); |
| 2479 | outs() << ((Mode & sys::fs::others_exe) ? "x" : "-"); |
| 2480 | } else { |
| 2481 | outs() << format("0%o ", Mode); |
| 2482 | } |
| 2483 | |
| 2484 | outs() << format("%3d/%-3d %5" PRId64"l" "d" " ", |
| 2485 | unwrapOrError(C.getUID(), getFileNameForError(C, ChildIndex), |
| 2486 | Filename, ArchitectureName), |
| 2487 | unwrapOrError(C.getGID(), getFileNameForError(C, ChildIndex), |
| 2488 | Filename, ArchitectureName), |
| 2489 | unwrapOrError(C.getRawSize(), |
| 2490 | getFileNameForError(C, ChildIndex), Filename, |
| 2491 | ArchitectureName)); |
| 2492 | |
| 2493 | StringRef RawLastModified = C.getRawLastModified(); |
| 2494 | if (verbose) { |
| 2495 | unsigned Seconds; |
| 2496 | if (RawLastModified.getAsInteger(10, Seconds)) |
| 2497 | outs() << "(date: \"" << RawLastModified |
| 2498 | << "\" contains non-decimal chars) "; |
| 2499 | else { |
| 2500 | // Since cime(3) returns a 26 character string of the form: |
| 2501 | // "Sun Sep 16 01:03:52 1973\n\0" |
| 2502 | // just print 24 characters. |
| 2503 | time_t t = Seconds; |
| 2504 | outs() << format("%.24s ", ctime(&t)); |
| 2505 | } |
| 2506 | } else { |
| 2507 | outs() << RawLastModified << " "; |
| 2508 | } |
| 2509 | |
| 2510 | if (verbose) { |
| 2511 | Expected<StringRef> NameOrErr = C.getName(); |
| 2512 | if (!NameOrErr) { |
| 2513 | consumeError(NameOrErr.takeError()); |
| 2514 | outs() << unwrapOrError(C.getRawName(), |
| 2515 | getFileNameForError(C, ChildIndex), Filename, |
| 2516 | ArchitectureName) |
| 2517 | << "\n"; |
| 2518 | } else { |
| 2519 | StringRef Name = NameOrErr.get(); |
| 2520 | outs() << Name << "\n"; |
| 2521 | } |
| 2522 | } else { |
| 2523 | outs() << unwrapOrError(C.getRawName(), getFileNameForError(C, ChildIndex), |
| 2524 | Filename, ArchitectureName) |
| 2525 | << "\n"; |
| 2526 | } |
| 2527 | } |
| 2528 | |
| 2529 | static void printArchiveHeaders(StringRef Filename, Archive *A, bool verbose, |
| 2530 | bool print_offset, |
| 2531 | StringRef ArchitectureName = StringRef()) { |
| 2532 | Error Err = Error::success(); |
| 2533 | size_t I = 0; |
| 2534 | for (const auto &C : A->children(Err, false)) |
| 2535 | printArchiveChild(Filename, C, I++, verbose, print_offset, |
| 2536 | ArchitectureName); |
| 2537 | |
| 2538 | if (Err) |
| 2539 | reportError(std::move(Err), Filename, "", ArchitectureName); |
| 2540 | } |
| 2541 | |
| 2542 | static bool ValidateArchFlags() { |
| 2543 | // Check for -arch all and verifiy the -arch flags are valid. |
| 2544 | for (unsigned i = 0; i < ArchFlags.size(); ++i) { |
| 2545 | if (ArchFlags[i] == "all") { |
| 2546 | ArchAll = true; |
| 2547 | } else { |
| 2548 | if (!MachOObjectFile::isValidArch(ArchFlags[i])) { |
| 2549 | WithColor::error(errs(), "llvm-objdump") |
| 2550 | << "unknown architecture named '" + ArchFlags[i] + |
| 2551 | "'for the -arch option\n"; |
| 2552 | return false; |
| 2553 | } |
| 2554 | } |
| 2555 | } |
| 2556 | return true; |
| 2557 | } |
| 2558 | |
| 2559 | // ParseInputMachO() parses the named Mach-O file in Filename and handles the |
| 2560 | // -arch flags selecting just those slices as specified by them and also parses |
| 2561 | // archive files. Then for each individual Mach-O file ProcessMachO() is |
| 2562 | // called to process the file based on the command line options. |
| 2563 | void objdump::parseInputMachO(StringRef Filename) { |
| 2564 | if (!ValidateArchFlags()) |
| 2565 | return; |
| 2566 | |
| 2567 | // Attempt to open the binary. |
| 2568 | Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename); |
| 2569 | if (!BinaryOrErr) { |
| 2570 | if (Error E = isNotObjectErrorInvalidFileType(BinaryOrErr.takeError())) |
| 2571 | reportError(std::move(E), Filename); |
| 2572 | else |
| 2573 | outs() << Filename << ": is not an object file\n"; |
| 2574 | return; |
| 2575 | } |
| 2576 | Binary &Bin = *BinaryOrErr.get().getBinary(); |
| 2577 | |
| 2578 | if (Archive *A = dyn_cast<Archive>(&Bin)) { |
| 2579 | outs() << "Archive : " << Filename << "\n"; |
| 2580 | if (ArchiveHeaders) |
| 2581 | printArchiveHeaders(Filename, A, Verbose, ArchiveMemberOffsets); |
| 2582 | |
| 2583 | Error Err = Error::success(); |
| 2584 | unsigned I = -1; |
| 2585 | for (auto &C : A->children(Err)) { |
| 2586 | ++I; |
| 2587 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
| 2588 | if (!ChildOrErr) { |
| 2589 | if (Error E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
| 2590 | reportError(std::move(E), getFileNameForError(C, I), Filename); |
| 2591 | continue; |
| 2592 | } |
| 2593 | if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { |
| 2594 | if (!checkMachOAndArchFlags(O, Filename)) |
| 2595 | return; |
| 2596 | ProcessMachO(Filename, O, O->getFileName()); |
| 2597 | } |
| 2598 | } |
| 2599 | if (Err) |
| 2600 | reportError(std::move(Err), Filename); |
| 2601 | return; |
| 2602 | } |
| 2603 | if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) { |
| 2604 | parseInputMachO(UB); |
| 2605 | return; |
| 2606 | } |
| 2607 | if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) { |
| 2608 | if (!checkMachOAndArchFlags(O, Filename)) |
| 2609 | return; |
| 2610 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) |
| 2611 | ProcessMachO(Filename, MachOOF); |
| 2612 | else |
| 2613 | WithColor::error(errs(), "llvm-objdump") |
| 2614 | << Filename << "': " |
| 2615 | << "object is not a Mach-O file type.\n"; |
| 2616 | return; |
| 2617 | } |
| 2618 | llvm_unreachable("Input object can't be invalid at this point")::llvm::llvm_unreachable_internal("Input object can't be invalid at this point" , "llvm/tools/llvm-objdump/MachODump.cpp", 2618); |
| 2619 | } |
| 2620 | |
| 2621 | void objdump::parseInputMachO(MachOUniversalBinary *UB) { |
| 2622 | if (!ValidateArchFlags()) |
| 2623 | return; |
| 2624 | |
| 2625 | auto Filename = UB->getFileName(); |
| 2626 | |
| 2627 | if (UniversalHeaders) |
| 2628 | printMachOUniversalHeaders(UB, Verbose); |
| 2629 | |
| 2630 | // If we have a list of architecture flags specified dump only those. |
| 2631 | if (!ArchAll && !ArchFlags.empty()) { |
| 2632 | // Look for a slice in the universal binary that matches each ArchFlag. |
| 2633 | bool ArchFound; |
| 2634 | for (unsigned i = 0; i < ArchFlags.size(); ++i) { |
| 2635 | ArchFound = false; |
| 2636 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
| 2637 | E = UB->end_objects(); |
| 2638 | I != E; ++I) { |
| 2639 | if (ArchFlags[i] == I->getArchFlagName()) { |
| 2640 | ArchFound = true; |
| 2641 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = |
| 2642 | I->getAsObjectFile(); |
| 2643 | std::string ArchitectureName; |
| 2644 | if (ArchFlags.size() > 1) |
| 2645 | ArchitectureName = I->getArchFlagName(); |
| 2646 | if (ObjOrErr) { |
| 2647 | ObjectFile &O = *ObjOrErr.get(); |
| 2648 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) |
| 2649 | ProcessMachO(Filename, MachOOF, "", ArchitectureName); |
| 2650 | } else if (Error E = isNotObjectErrorInvalidFileType( |
| 2651 | ObjOrErr.takeError())) { |
| 2652 | reportError(std::move(E), "", Filename, ArchitectureName); |
| 2653 | continue; |
| 2654 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
| 2655 | I->getAsArchive()) { |
| 2656 | std::unique_ptr<Archive> &A = *AOrErr; |
| 2657 | outs() << "Archive : " << Filename; |
| 2658 | if (!ArchitectureName.empty()) |
| 2659 | outs() << " (architecture " << ArchitectureName << ")"; |
| 2660 | outs() << "\n"; |
| 2661 | if (ArchiveHeaders) |
| 2662 | printArchiveHeaders(Filename, A.get(), Verbose, |
| 2663 | ArchiveMemberOffsets, ArchitectureName); |
| 2664 | Error Err = Error::success(); |
| 2665 | unsigned I = -1; |
| 2666 | for (auto &C : A->children(Err)) { |
| 2667 | ++I; |
| 2668 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
| 2669 | if (!ChildOrErr) { |
| 2670 | if (Error E = |
| 2671 | isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
| 2672 | reportError(std::move(E), getFileNameForError(C, I), Filename, |
| 2673 | ArchitectureName); |
| 2674 | continue; |
| 2675 | } |
| 2676 | if (MachOObjectFile *O = |
| 2677 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) |
| 2678 | ProcessMachO(Filename, O, O->getFileName(), ArchitectureName); |
| 2679 | } |
| 2680 | if (Err) |
| 2681 | reportError(std::move(Err), Filename); |
| 2682 | } else { |
| 2683 | consumeError(AOrErr.takeError()); |
| 2684 | reportError(Filename, |
| 2685 | "Mach-O universal file for architecture " + |
| 2686 | StringRef(I->getArchFlagName()) + |
| 2687 | " is not a Mach-O file or an archive file"); |
| 2688 | } |
| 2689 | } |
| 2690 | } |
| 2691 | if (!ArchFound) { |
| 2692 | WithColor::error(errs(), "llvm-objdump") |
| 2693 | << "file: " + Filename + " does not contain " |
| 2694 | << "architecture: " + ArchFlags[i] + "\n"; |
| 2695 | return; |
| 2696 | } |
| 2697 | } |
| 2698 | return; |
| 2699 | } |
| 2700 | // No architecture flags were specified so if this contains a slice that |
| 2701 | // matches the host architecture dump only that. |
| 2702 | if (!ArchAll) { |
| 2703 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
| 2704 | E = UB->end_objects(); |
| 2705 | I != E; ++I) { |
| 2706 | if (MachOObjectFile::getHostArch().getArchName() == |
| 2707 | I->getArchFlagName()) { |
| 2708 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); |
| 2709 | std::string ArchiveName; |
| 2710 | ArchiveName.clear(); |
| 2711 | if (ObjOrErr) { |
| 2712 | ObjectFile &O = *ObjOrErr.get(); |
| 2713 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) |
| 2714 | ProcessMachO(Filename, MachOOF); |
| 2715 | } else if (Error E = |
| 2716 | isNotObjectErrorInvalidFileType(ObjOrErr.takeError())) { |
| 2717 | reportError(std::move(E), Filename); |
| 2718 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
| 2719 | I->getAsArchive()) { |
| 2720 | std::unique_ptr<Archive> &A = *AOrErr; |
| 2721 | outs() << "Archive : " << Filename << "\n"; |
| 2722 | if (ArchiveHeaders) |
| 2723 | printArchiveHeaders(Filename, A.get(), Verbose, |
| 2724 | ArchiveMemberOffsets); |
| 2725 | Error Err = Error::success(); |
| 2726 | unsigned I = -1; |
| 2727 | for (auto &C : A->children(Err)) { |
| 2728 | ++I; |
| 2729 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
| 2730 | if (!ChildOrErr) { |
| 2731 | if (Error E = |
| 2732 | isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
| 2733 | reportError(std::move(E), getFileNameForError(C, I), Filename); |
| 2734 | continue; |
| 2735 | } |
| 2736 | if (MachOObjectFile *O = |
| 2737 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) |
| 2738 | ProcessMachO(Filename, O, O->getFileName()); |
| 2739 | } |
| 2740 | if (Err) |
| 2741 | reportError(std::move(Err), Filename); |
| 2742 | } else { |
| 2743 | consumeError(AOrErr.takeError()); |
| 2744 | reportError(Filename, "Mach-O universal file for architecture " + |
| 2745 | StringRef(I->getArchFlagName()) + |
| 2746 | " is not a Mach-O file or an archive file"); |
| 2747 | } |
| 2748 | return; |
| 2749 | } |
| 2750 | } |
| 2751 | } |
| 2752 | // Either all architectures have been specified or none have been specified |
| 2753 | // and this does not contain the host architecture so dump all the slices. |
| 2754 | bool moreThanOneArch = UB->getNumberOfObjects() > 1; |
| 2755 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
| 2756 | E = UB->end_objects(); |
| 2757 | I != E; ++I) { |
| 2758 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); |
| 2759 | std::string ArchitectureName; |
| 2760 | if (moreThanOneArch) |
| 2761 | ArchitectureName = I->getArchFlagName(); |
| 2762 | if (ObjOrErr) { |
| 2763 | ObjectFile &Obj = *ObjOrErr.get(); |
| 2764 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj)) |
| 2765 | ProcessMachO(Filename, MachOOF, "", ArchitectureName); |
| 2766 | } else if (Error E = |
| 2767 | isNotObjectErrorInvalidFileType(ObjOrErr.takeError())) { |
| 2768 | reportError(std::move(E), Filename, "", ArchitectureName); |
| 2769 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) { |
| 2770 | std::unique_ptr<Archive> &A = *AOrErr; |
| 2771 | outs() << "Archive : " << Filename; |
| 2772 | if (!ArchitectureName.empty()) |
| 2773 | outs() << " (architecture " << ArchitectureName << ")"; |
| 2774 | outs() << "\n"; |
| 2775 | if (ArchiveHeaders) |
| 2776 | printArchiveHeaders(Filename, A.get(), Verbose, ArchiveMemberOffsets, |
| 2777 | ArchitectureName); |
| 2778 | Error Err = Error::success(); |
| 2779 | unsigned I = -1; |
| 2780 | for (auto &C : A->children(Err)) { |
| 2781 | ++I; |
| 2782 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
| 2783 | if (!ChildOrErr) { |
| 2784 | if (Error E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
| 2785 | reportError(std::move(E), getFileNameForError(C, I), Filename, |
| 2786 | ArchitectureName); |
| 2787 | continue; |
| 2788 | } |
| 2789 | if (MachOObjectFile *O = |
| 2790 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { |
| 2791 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O)) |
| 2792 | ProcessMachO(Filename, MachOOF, MachOOF->getFileName(), |
| 2793 | ArchitectureName); |
| 2794 | } |
| 2795 | } |
| 2796 | if (Err) |
| 2797 | reportError(std::move(Err), Filename); |
| 2798 | } else { |
| 2799 | consumeError(AOrErr.takeError()); |
| 2800 | reportError(Filename, "Mach-O universal file for architecture " + |
| 2801 | StringRef(I->getArchFlagName()) + |
| 2802 | " is not a Mach-O file or an archive file"); |
| 2803 | } |
| 2804 | } |
| 2805 | } |
| 2806 | |
| 2807 | namespace { |
| 2808 | // The block of info used by the Symbolizer call backs. |
| 2809 | struct DisassembleInfo { |
| 2810 | DisassembleInfo(MachOObjectFile *O, SymbolAddressMap *AddrMap, |
| 2811 | std::vector<SectionRef> *Sections, bool verbose) |
| 2812 | : verbose(verbose), O(O), AddrMap(AddrMap), Sections(Sections) {} |
| 2813 | bool verbose; |
| 2814 | MachOObjectFile *O; |
| 2815 | SectionRef S; |
| 2816 | SymbolAddressMap *AddrMap; |
| 2817 | std::vector<SectionRef> *Sections; |
| 2818 | const char *class_name = nullptr; |
| 2819 | const char *selector_name = nullptr; |
| 2820 | std::unique_ptr<char[]> method = nullptr; |
| 2821 | char *demangled_name = nullptr; |
| 2822 | uint64_t adrp_addr = 0; |
| 2823 | uint32_t adrp_inst = 0; |
| 2824 | std::unique_ptr<SymbolAddressMap> bindtable; |
| 2825 | uint32_t depth = 0; |
| 2826 | }; |
| 2827 | } // namespace |
| 2828 | |
| 2829 | // SymbolizerGetOpInfo() is the operand information call back function. |
| 2830 | // This is called to get the symbolic information for operand(s) of an |
| 2831 | // instruction when it is being done. This routine does this from |
| 2832 | // the relocation information, symbol table, etc. That block of information |
| 2833 | // is a pointer to the struct DisassembleInfo that was passed when the |
| 2834 | // disassembler context was created and passed to back to here when |
| 2835 | // called back by the disassembler for instruction operands that could have |
| 2836 | // relocation information. The address of the instruction containing operand is |
| 2837 | // at the Pc parameter. The immediate value the operand has is passed in |
| 2838 | // op_info->Value and is at Offset past the start of the instruction and has a |
| 2839 | // byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the |
| 2840 | // LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol |
| 2841 | // names and addends of the symbolic expression to add for the operand. The |
| 2842 | // value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic |
| 2843 | // information is returned then this function returns 1 else it returns 0. |
| 2844 | static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset, |
| 2845 | uint64_t OpSize, uint64_t InstSize, int TagType, |
| 2846 | void *TagBuf) { |
| 2847 | struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; |
| 2848 | struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf; |
| 2849 | uint64_t value = op_info->Value; |
| 2850 | |
| 2851 | // Make sure all fields returned are zero if we don't set them. |
| 2852 | memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1)); |
| 2853 | op_info->Value = value; |
| 2854 | |
| 2855 | // If the TagType is not the value 1 which it code knows about or if no |
| 2856 | // verbose symbolic information is wanted then just return 0, indicating no |
| 2857 | // information is being returned. |
| 2858 | if (TagType != 1 || !info->verbose) |
| 2859 | return 0; |
| 2860 | |
| 2861 | unsigned int Arch = info->O->getArch(); |
| 2862 | if (Arch == Triple::x86) { |
| 2863 | if (OpSize != 1 && OpSize != 2 && OpSize != 4 && OpSize != 0) |
| 2864 | return 0; |
| 2865 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
| 2866 | // TODO: |
| 2867 | // Search the external relocation entries of a fully linked image |
| 2868 | // (if any) for an entry that matches this segment offset. |
| 2869 | // uint32_t seg_offset = (Pc + Offset); |
| 2870 | return 0; |
| 2871 | } |
| 2872 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
| 2873 | // for an entry for this section offset. |
| 2874 | uint32_t sect_addr = info->S.getAddress(); |
| 2875 | uint32_t sect_offset = (Pc + Offset) - sect_addr; |
| 2876 | bool reloc_found = false; |
| 2877 | DataRefImpl Rel; |
| 2878 | MachO::any_relocation_info RE; |
| 2879 | bool isExtern = false; |
| 2880 | SymbolRef Symbol; |
| 2881 | bool r_scattered = false; |
| 2882 | uint32_t r_value, pair_r_value, r_type; |
| 2883 | for (const RelocationRef &Reloc : info->S.relocations()) { |
| 2884 | uint64_t RelocOffset = Reloc.getOffset(); |
| 2885 | if (RelocOffset == sect_offset) { |
| 2886 | Rel = Reloc.getRawDataRefImpl(); |
| 2887 | RE = info->O->getRelocation(Rel); |
| 2888 | r_type = info->O->getAnyRelocationType(RE); |
| 2889 | r_scattered = info->O->isRelocationScattered(RE); |
| 2890 | if (r_scattered) { |
| 2891 | r_value = info->O->getScatteredRelocationValue(RE); |
| 2892 | if (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
| 2893 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) { |
| 2894 | DataRefImpl RelNext = Rel; |
| 2895 | info->O->moveRelocationNext(RelNext); |
| 2896 | MachO::any_relocation_info RENext; |
| 2897 | RENext = info->O->getRelocation(RelNext); |
| 2898 | if (info->O->isRelocationScattered(RENext)) |
| 2899 | pair_r_value = info->O->getScatteredRelocationValue(RENext); |
| 2900 | else |
| 2901 | return 0; |
| 2902 | } |
| 2903 | } else { |
| 2904 | isExtern = info->O->getPlainRelocationExternal(RE); |
| 2905 | if (isExtern) { |
| 2906 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 2907 | Symbol = *RelocSym; |
| 2908 | } |
| 2909 | } |
| 2910 | reloc_found = true; |
| 2911 | break; |
| 2912 | } |
| 2913 | } |
| 2914 | if (reloc_found && isExtern) { |
| 2915 | op_info->AddSymbol.Present = 1; |
| 2916 | op_info->AddSymbol.Name = |
| 2917 | unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); |
| 2918 | // For i386 extern relocation entries the value in the instruction is |
| 2919 | // the offset from the symbol, and value is already set in op_info->Value. |
| 2920 | return 1; |
| 2921 | } |
| 2922 | if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
| 2923 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) { |
| 2924 | const char *add = GuessSymbolName(r_value, info->AddrMap); |
| 2925 | const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); |
| 2926 | uint32_t offset = value - (r_value - pair_r_value); |
| 2927 | op_info->AddSymbol.Present = 1; |
| 2928 | if (add != nullptr) |
| 2929 | op_info->AddSymbol.Name = add; |
| 2930 | else |
| 2931 | op_info->AddSymbol.Value = r_value; |
| 2932 | op_info->SubtractSymbol.Present = 1; |
| 2933 | if (sub != nullptr) |
| 2934 | op_info->SubtractSymbol.Name = sub; |
| 2935 | else |
| 2936 | op_info->SubtractSymbol.Value = pair_r_value; |
| 2937 | op_info->Value = offset; |
| 2938 | return 1; |
| 2939 | } |
| 2940 | return 0; |
| 2941 | } |
| 2942 | if (Arch == Triple::x86_64) { |
| 2943 | if (OpSize != 1 && OpSize != 2 && OpSize != 4 && OpSize != 0) |
| 2944 | return 0; |
| 2945 | // For non MH_OBJECT types, like MH_KEXT_BUNDLE, Search the external |
| 2946 | // relocation entries of a linked image (if any) for an entry that matches |
| 2947 | // this segment offset. |
| 2948 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
| 2949 | uint64_t seg_offset = Pc + Offset; |
| 2950 | bool reloc_found = false; |
| 2951 | DataRefImpl Rel; |
| 2952 | MachO::any_relocation_info RE; |
| 2953 | bool isExtern = false; |
| 2954 | SymbolRef Symbol; |
| 2955 | for (const RelocationRef &Reloc : info->O->external_relocations()) { |
| 2956 | uint64_t RelocOffset = Reloc.getOffset(); |
| 2957 | if (RelocOffset == seg_offset) { |
| 2958 | Rel = Reloc.getRawDataRefImpl(); |
| 2959 | RE = info->O->getRelocation(Rel); |
| 2960 | // external relocation entries should always be external. |
| 2961 | isExtern = info->O->getPlainRelocationExternal(RE); |
| 2962 | if (isExtern) { |
| 2963 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 2964 | Symbol = *RelocSym; |
| 2965 | } |
| 2966 | reloc_found = true; |
| 2967 | break; |
| 2968 | } |
| 2969 | } |
| 2970 | if (reloc_found && isExtern) { |
| 2971 | // The Value passed in will be adjusted by the Pc if the instruction |
| 2972 | // adds the Pc. But for x86_64 external relocation entries the Value |
| 2973 | // is the offset from the external symbol. |
| 2974 | if (info->O->getAnyRelocationPCRel(RE)) |
| 2975 | op_info->Value -= Pc + InstSize; |
| 2976 | const char *name = |
| 2977 | unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); |
| 2978 | op_info->AddSymbol.Present = 1; |
| 2979 | op_info->AddSymbol.Name = name; |
| 2980 | return 1; |
| 2981 | } |
| 2982 | return 0; |
| 2983 | } |
| 2984 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
| 2985 | // for an entry for this section offset. |
| 2986 | uint64_t sect_addr = info->S.getAddress(); |
| 2987 | uint64_t sect_offset = (Pc + Offset) - sect_addr; |
| 2988 | bool reloc_found = false; |
| 2989 | DataRefImpl Rel; |
| 2990 | MachO::any_relocation_info RE; |
| 2991 | bool isExtern = false; |
| 2992 | SymbolRef Symbol; |
| 2993 | for (const RelocationRef &Reloc : info->S.relocations()) { |
| 2994 | uint64_t RelocOffset = Reloc.getOffset(); |
| 2995 | if (RelocOffset == sect_offset) { |
| 2996 | Rel = Reloc.getRawDataRefImpl(); |
| 2997 | RE = info->O->getRelocation(Rel); |
| 2998 | // NOTE: Scattered relocations don't exist on x86_64. |
| 2999 | isExtern = info->O->getPlainRelocationExternal(RE); |
| 3000 | if (isExtern) { |
| 3001 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 3002 | Symbol = *RelocSym; |
| 3003 | } |
| 3004 | reloc_found = true; |
| 3005 | break; |
| 3006 | } |
| 3007 | } |
| 3008 | if (reloc_found && isExtern) { |
| 3009 | // The Value passed in will be adjusted by the Pc if the instruction |
| 3010 | // adds the Pc. But for x86_64 external relocation entries the Value |
| 3011 | // is the offset from the external symbol. |
| 3012 | if (info->O->getAnyRelocationPCRel(RE)) |
| 3013 | op_info->Value -= Pc + InstSize; |
| 3014 | const char *name = |
| 3015 | unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); |
| 3016 | unsigned Type = info->O->getAnyRelocationType(RE); |
| 3017 | if (Type == MachO::X86_64_RELOC_SUBTRACTOR) { |
| 3018 | DataRefImpl RelNext = Rel; |
| 3019 | info->O->moveRelocationNext(RelNext); |
| 3020 | MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); |
| 3021 | unsigned TypeNext = info->O->getAnyRelocationType(RENext); |
| 3022 | bool isExternNext = info->O->getPlainRelocationExternal(RENext); |
| 3023 | unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext); |
| 3024 | if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) { |
| 3025 | op_info->SubtractSymbol.Present = 1; |
| 3026 | op_info->SubtractSymbol.Name = name; |
| 3027 | symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum); |
| 3028 | Symbol = *RelocSymNext; |
| 3029 | name = unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); |
| 3030 | } |
| 3031 | } |
| 3032 | // TODO: add the VariantKinds to op_info->VariantKind for relocation types |
| 3033 | // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT. |
| 3034 | op_info->AddSymbol.Present = 1; |
| 3035 | op_info->AddSymbol.Name = name; |
| 3036 | return 1; |
| 3037 | } |
| 3038 | return 0; |
| 3039 | } |
| 3040 | if (Arch == Triple::arm) { |
| 3041 | if (Offset != 0 || (InstSize != 4 && InstSize != 2)) |
| 3042 | return 0; |
| 3043 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
| 3044 | // TODO: |
| 3045 | // Search the external relocation entries of a fully linked image |
| 3046 | // (if any) for an entry that matches this segment offset. |
| 3047 | // uint32_t seg_offset = (Pc + Offset); |
| 3048 | return 0; |
| 3049 | } |
| 3050 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
| 3051 | // for an entry for this section offset. |
| 3052 | uint32_t sect_addr = info->S.getAddress(); |
| 3053 | uint32_t sect_offset = (Pc + Offset) - sect_addr; |
| 3054 | DataRefImpl Rel; |
| 3055 | MachO::any_relocation_info RE; |
| 3056 | bool isExtern = false; |
| 3057 | SymbolRef Symbol; |
| 3058 | bool r_scattered = false; |
| 3059 | uint32_t r_value, pair_r_value, r_type, r_length, other_half; |
| 3060 | auto Reloc = |
| 3061 | find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { |
| 3062 | uint64_t RelocOffset = Reloc.getOffset(); |
| 3063 | return RelocOffset == sect_offset; |
| 3064 | }); |
| 3065 | |
| 3066 | if (Reloc == info->S.relocations().end()) |
| 3067 | return 0; |
| 3068 | |
| 3069 | Rel = Reloc->getRawDataRefImpl(); |
| 3070 | RE = info->O->getRelocation(Rel); |
| 3071 | r_length = info->O->getAnyRelocationLength(RE); |
| 3072 | r_scattered = info->O->isRelocationScattered(RE); |
| 3073 | if (r_scattered) { |
| 3074 | r_value = info->O->getScatteredRelocationValue(RE); |
| 3075 | r_type = info->O->getScatteredRelocationType(RE); |
| 3076 | } else { |
| 3077 | r_type = info->O->getAnyRelocationType(RE); |
| 3078 | isExtern = info->O->getPlainRelocationExternal(RE); |
| 3079 | if (isExtern) { |
| 3080 | symbol_iterator RelocSym = Reloc->getSymbol(); |
| 3081 | Symbol = *RelocSym; |
| 3082 | } |
| 3083 | } |
| 3084 | if (r_type == MachO::ARM_RELOC_HALF || |
| 3085 | r_type == MachO::ARM_RELOC_SECTDIFF || |
| 3086 | r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF || |
| 3087 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
| 3088 | DataRefImpl RelNext = Rel; |
| 3089 | info->O->moveRelocationNext(RelNext); |
| 3090 | MachO::any_relocation_info RENext; |
| 3091 | RENext = info->O->getRelocation(RelNext); |
| 3092 | other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff; |
| 3093 | if (info->O->isRelocationScattered(RENext)) |
| 3094 | pair_r_value = info->O->getScatteredRelocationValue(RENext); |
| 3095 | } |
| 3096 | |
| 3097 | if (isExtern) { |
| 3098 | const char *name = |
| 3099 | unwrapOrError(Symbol.getName(), info->O->getFileName()).data(); |
| 3100 | op_info->AddSymbol.Present = 1; |
| 3101 | op_info->AddSymbol.Name = name; |
| 3102 | switch (r_type) { |
| 3103 | case MachO::ARM_RELOC_HALF: |
| 3104 | if ((r_length & 0x1) == 1) { |
| 3105 | op_info->Value = value << 16 | other_half; |
| 3106 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
| 3107 | } else { |
| 3108 | op_info->Value = other_half << 16 | value; |
| 3109 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
| 3110 | } |
| 3111 | break; |
| 3112 | default: |
| 3113 | break; |
| 3114 | } |
| 3115 | return 1; |
| 3116 | } |
| 3117 | // If we have a branch that is not an external relocation entry then |
| 3118 | // return 0 so the code in tryAddingSymbolicOperand() can use the |
| 3119 | // SymbolLookUp call back with the branch target address to look up the |
| 3120 | // symbol and possibility add an annotation for a symbol stub. |
| 3121 | if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 || |
| 3122 | r_type == MachO::ARM_THUMB_RELOC_BR22)) |
| 3123 | return 0; |
| 3124 | |
| 3125 | uint32_t offset = 0; |
| 3126 | if (r_type == MachO::ARM_RELOC_HALF || |
| 3127 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
| 3128 | if ((r_length & 0x1) == 1) |
| 3129 | value = value << 16 | other_half; |
| 3130 | else |
| 3131 | value = other_half << 16 | value; |
| 3132 | } |
| 3133 | if (r_scattered && (r_type != MachO::ARM_RELOC_HALF && |
| 3134 | r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) { |
| 3135 | offset = value - r_value; |
| 3136 | value = r_value; |
| 3137 | } |
| 3138 | |
| 3139 | if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
| 3140 | if ((r_length & 0x1) == 1) |
| 3141 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
| 3142 | else |
| 3143 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
| 3144 | const char *add = GuessSymbolName(r_value, info->AddrMap); |
| 3145 | const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); |
| 3146 | int32_t offset = value - (r_value - pair_r_value); |
| 3147 | op_info->AddSymbol.Present = 1; |
| 3148 | if (add != nullptr) |
| 3149 | op_info->AddSymbol.Name = add; |
| 3150 | else |
| 3151 | op_info->AddSymbol.Value = r_value; |
| 3152 | op_info->SubtractSymbol.Present = 1; |
| 3153 | if (sub != nullptr) |
| 3154 | op_info->SubtractSymbol.Name = sub; |
| 3155 | else |
| 3156 | op_info->SubtractSymbol.Value = pair_r_value; |
| 3157 | op_info->Value = offset; |
| 3158 | return 1; |
| 3159 | } |
| 3160 | |
| 3161 | op_info->AddSymbol.Present = 1; |
| 3162 | op_info->Value = offset; |
| 3163 | if (r_type == MachO::ARM_RELOC_HALF) { |
| 3164 | if ((r_length & 0x1) == 1) |
| 3165 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
| 3166 | else |
| 3167 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
| 3168 | } |
| 3169 | const char *add = GuessSymbolName(value, info->AddrMap); |
| 3170 | if (add != nullptr) { |
| 3171 | op_info->AddSymbol.Name = add; |
| 3172 | return 1; |
| 3173 | } |
| 3174 | op_info->AddSymbol.Value = value; |
| 3175 | return 1; |
| 3176 | } |
| 3177 | if (Arch == Triple::aarch64) { |
| 3178 | if (Offset != 0 || InstSize != 4) |
| 3179 | return 0; |
| 3180 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
| 3181 | // TODO: |
| 3182 | // Search the external relocation entries of a fully linked image |
| 3183 | // (if any) for an entry that matches this segment offset. |
| 3184 | // uint64_t seg_offset = (Pc + Offset); |
| 3185 | return 0; |
| 3186 | } |
| 3187 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
| 3188 | // for an entry for this section offset. |
| 3189 | uint64_t sect_addr = info->S.getAddress(); |
| 3190 | uint64_t sect_offset = (Pc + Offset) - sect_addr; |
| 3191 | auto Reloc = |
| 3192 | find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { |
| 3193 | uint64_t RelocOffset = Reloc.getOffset(); |
| 3194 | return RelocOffset == sect_offset; |
| 3195 | }); |
| 3196 | |
| 3197 | if (Reloc == info->S.relocations().end()) |
| 3198 | return 0; |
| 3199 | |
| 3200 | DataRefImpl Rel = Reloc->getRawDataRefImpl(); |
| 3201 | MachO::any_relocation_info RE = info->O->getRelocation(Rel); |
| 3202 | uint32_t r_type = info->O->getAnyRelocationType(RE); |
| 3203 | if (r_type == MachO::ARM64_RELOC_ADDEND) { |
| 3204 | DataRefImpl RelNext = Rel; |
| 3205 | info->O->moveRelocationNext(RelNext); |
| 3206 | MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); |
| 3207 | if (value == 0) { |
| 3208 | value = info->O->getPlainRelocationSymbolNum(RENext); |
| 3209 | op_info->Value = value; |
| 3210 | } |
| 3211 | } |
| 3212 | // NOTE: Scattered relocations don't exist on arm64. |
| 3213 | if (!info->O->getPlainRelocationExternal(RE)) |
| 3214 | return 0; |
| 3215 | const char *name = |
| 3216 | unwrapOrError(Reloc->getSymbol()->getName(), info->O->getFileName()) |
| 3217 | .data(); |
| 3218 | op_info->AddSymbol.Present = 1; |
| 3219 | op_info->AddSymbol.Name = name; |
| 3220 | |
| 3221 | switch (r_type) { |
| 3222 | case MachO::ARM64_RELOC_PAGE21: |
| 3223 | /* @page */ |
| 3224 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE1; |
| 3225 | break; |
| 3226 | case MachO::ARM64_RELOC_PAGEOFF12: |
| 3227 | /* @pageoff */ |
| 3228 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF2; |
| 3229 | break; |
| 3230 | case MachO::ARM64_RELOC_GOT_LOAD_PAGE21: |
| 3231 | /* @gotpage */ |
| 3232 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE3; |
| 3233 | break; |
| 3234 | case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12: |
| 3235 | /* @gotpageoff */ |
| 3236 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF4; |
| 3237 | break; |
| 3238 | case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21: |
| 3239 | /* @tvlppage is not implemented in llvm-mc */ |
| 3240 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP5; |
| 3241 | break; |
| 3242 | case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12: |
| 3243 | /* @tvlppageoff is not implemented in llvm-mc */ |
| 3244 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF6; |
| 3245 | break; |
| 3246 | default: |
| 3247 | case MachO::ARM64_RELOC_BRANCH26: |
| 3248 | op_info->VariantKind = LLVMDisassembler_VariantKind_None0; |
| 3249 | break; |
| 3250 | } |
| 3251 | return 1; |
| 3252 | } |
| 3253 | return 0; |
| 3254 | } |
| 3255 | |
| 3256 | // GuessCstringPointer is passed the address of what might be a pointer to a |
| 3257 | // literal string in a cstring section. If that address is in a cstring section |
| 3258 | // it returns a pointer to that string. Else it returns nullptr. |
| 3259 | static const char *GuessCstringPointer(uint64_t ReferenceValue, |
| 3260 | struct DisassembleInfo *info) { |
| 3261 | for (const auto &Load : info->O->load_commands()) { |
| 3262 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
| 3263 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
| 3264 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 3265 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
| 3266 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
| 3267 | if (section_type == MachO::S_CSTRING_LITERALS && |
| 3268 | ReferenceValue >= Sec.addr && |
| 3269 | ReferenceValue < Sec.addr + Sec.size) { |
| 3270 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
| 3271 | uint64_t object_offset = Sec.offset + sect_offset; |
| 3272 | StringRef MachOContents = info->O->getData(); |
| 3273 | uint64_t object_size = MachOContents.size(); |
| 3274 | const char *object_addr = (const char *)MachOContents.data(); |
| 3275 | if (object_offset < object_size) { |
| 3276 | const char *name = object_addr + object_offset; |
| 3277 | return name; |
| 3278 | } else { |
| 3279 | return nullptr; |
| 3280 | } |
| 3281 | } |
| 3282 | } |
| 3283 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
| 3284 | MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); |
| 3285 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 3286 | MachO::section Sec = info->O->getSection(Load, J); |
| 3287 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
| 3288 | if (section_type == MachO::S_CSTRING_LITERALS && |
| 3289 | ReferenceValue >= Sec.addr && |
| 3290 | ReferenceValue < Sec.addr + Sec.size) { |
| 3291 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
| 3292 | uint64_t object_offset = Sec.offset + sect_offset; |
| 3293 | StringRef MachOContents = info->O->getData(); |
| 3294 | uint64_t object_size = MachOContents.size(); |
| 3295 | const char *object_addr = (const char *)MachOContents.data(); |
| 3296 | if (object_offset < object_size) { |
| 3297 | const char *name = object_addr + object_offset; |
| 3298 | return name; |
| 3299 | } else { |
| 3300 | return nullptr; |
| 3301 | } |
| 3302 | } |
| 3303 | } |
| 3304 | } |
| 3305 | } |
| 3306 | return nullptr; |
| 3307 | } |
| 3308 | |
| 3309 | // GuessIndirectSymbol returns the name of the indirect symbol for the |
| 3310 | // ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe |
| 3311 | // an address of a symbol stub or a lazy or non-lazy pointer to associate the |
| 3312 | // symbol name being referenced by the stub or pointer. |
| 3313 | static const char *GuessIndirectSymbol(uint64_t ReferenceValue, |
| 3314 | struct DisassembleInfo *info) { |
| 3315 | MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand(); |
| 3316 | MachO::symtab_command Symtab = info->O->getSymtabLoadCommand(); |
| 3317 | for (const auto &Load : info->O->load_commands()) { |
| 3318 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
| 3319 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
| 3320 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 3321 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
| 3322 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
| 3323 | if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
| 3324 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
| 3325 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
| 3326 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
| 3327 | section_type == MachO::S_SYMBOL_STUBS) && |
| 3328 | ReferenceValue >= Sec.addr && |
| 3329 | ReferenceValue < Sec.addr + Sec.size) { |
| 3330 | uint32_t stride; |
| 3331 | if (section_type == MachO::S_SYMBOL_STUBS) |
| 3332 | stride = Sec.reserved2; |
| 3333 | else |
| 3334 | stride = 8; |
| 3335 | if (stride == 0) |
| 3336 | return nullptr; |
| 3337 | uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; |
| 3338 | if (index < Dysymtab.nindirectsyms) { |
| 3339 | uint32_t indirect_symbol = |
| 3340 | info->O->getIndirectSymbolTableEntry(Dysymtab, index); |
| 3341 | if (indirect_symbol < Symtab.nsyms) { |
| 3342 | symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); |
| 3343 | return unwrapOrError(Sym->getName(), info->O->getFileName()) |
| 3344 | .data(); |
| 3345 | } |
| 3346 | } |
| 3347 | } |
| 3348 | } |
| 3349 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
| 3350 | MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); |
| 3351 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 3352 | MachO::section Sec = info->O->getSection(Load, J); |
| 3353 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
| 3354 | if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
| 3355 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
| 3356 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
| 3357 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
| 3358 | section_type == MachO::S_SYMBOL_STUBS) && |
| 3359 | ReferenceValue >= Sec.addr && |
| 3360 | ReferenceValue < Sec.addr + Sec.size) { |
| 3361 | uint32_t stride; |
| 3362 | if (section_type == MachO::S_SYMBOL_STUBS) |
| 3363 | stride = Sec.reserved2; |
| 3364 | else |
| 3365 | stride = 4; |
| 3366 | if (stride == 0) |
| 3367 | return nullptr; |
| 3368 | uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; |
| 3369 | if (index < Dysymtab.nindirectsyms) { |
| 3370 | uint32_t indirect_symbol = |
| 3371 | info->O->getIndirectSymbolTableEntry(Dysymtab, index); |
| 3372 | if (indirect_symbol < Symtab.nsyms) { |
| 3373 | symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); |
| 3374 | return unwrapOrError(Sym->getName(), info->O->getFileName()) |
| 3375 | .data(); |
| 3376 | } |
| 3377 | } |
| 3378 | } |
| 3379 | } |
| 3380 | } |
| 3381 | } |
| 3382 | return nullptr; |
| 3383 | } |
| 3384 | |
| 3385 | // method_reference() is called passing it the ReferenceName that might be |
| 3386 | // a reference it to an Objective-C method call. If so then it allocates and |
| 3387 | // assembles a method call string with the values last seen and saved in |
| 3388 | // the DisassembleInfo's class_name and selector_name fields. This is saved |
| 3389 | // into the method field of the info and any previous string is free'ed. |
| 3390 | // Then the class_name field in the info is set to nullptr. The method call |
| 3391 | // string is set into ReferenceName and ReferenceType is set to |
| 3392 | // LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call |
| 3393 | // then both ReferenceType and ReferenceName are left unchanged. |
| 3394 | static void method_reference(struct DisassembleInfo *info, |
| 3395 | uint64_t *ReferenceType, |
| 3396 | const char **ReferenceName) { |
| 3397 | unsigned int Arch = info->O->getArch(); |
| 3398 | if (*ReferenceName != nullptr) { |
| 3399 | if (strcmp(*ReferenceName, "_objc_msgSend") == 0) { |
| 3400 | if (info->selector_name != nullptr) { |
| 3401 | if (info->class_name != nullptr) { |
| 3402 | info->method = std::make_unique<char[]>( |
| 3403 | 5 + strlen(info->class_name) + strlen(info->selector_name)); |
| 3404 | char *method = info->method.get(); |
| 3405 | if (method != nullptr) { |
| 3406 | strcpy(method, "+["); |
| 3407 | strcat(method, info->class_name); |
| 3408 | strcat(method, " "); |
| 3409 | strcat(method, info->selector_name); |
| 3410 | strcat(method, "]"); |
| 3411 | *ReferenceName = method; |
| 3412 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
| 3413 | } |
| 3414 | } else { |
| 3415 | info->method = |
| 3416 | std::make_unique<char[]>(9 + strlen(info->selector_name)); |
| 3417 | char *method = info->method.get(); |
| 3418 | if (method != nullptr) { |
| 3419 | if (Arch == Triple::x86_64) |
| 3420 | strcpy(method, "-[%rdi "); |
| 3421 | else if (Arch == Triple::aarch64) |
| 3422 | strcpy(method, "-[x0 "); |
| 3423 | else |
| 3424 | strcpy(method, "-[r? "); |
| 3425 | strcat(method, info->selector_name); |
| 3426 | strcat(method, "]"); |
| 3427 | *ReferenceName = method; |
| 3428 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
| 3429 | } |
| 3430 | } |
| 3431 | info->class_name = nullptr; |
| 3432 | } |
| 3433 | } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) { |
| 3434 | if (info->selector_name != nullptr) { |
| 3435 | info->method = |
| 3436 | std::make_unique<char[]>(17 + strlen(info->selector_name)); |
| 3437 | char *method = info->method.get(); |
| 3438 | if (method != nullptr) { |
| 3439 | if (Arch == Triple::x86_64) |
| 3440 | strcpy(method, "-[[%rdi super] "); |
| 3441 | else if (Arch == Triple::aarch64) |
| 3442 | strcpy(method, "-[[x0 super] "); |
| 3443 | else |
| 3444 | strcpy(method, "-[[r? super] "); |
| 3445 | strcat(method, info->selector_name); |
| 3446 | strcat(method, "]"); |
| 3447 | *ReferenceName = method; |
| 3448 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
| 3449 | } |
| 3450 | info->class_name = nullptr; |
| 3451 | } |
| 3452 | } |
| 3453 | } |
| 3454 | } |
| 3455 | |
| 3456 | // GuessPointerPointer() is passed the address of what might be a pointer to |
| 3457 | // a reference to an Objective-C class, selector, message ref or cfstring. |
| 3458 | // If so the value of the pointer is returned and one of the booleans are set |
| 3459 | // to true. If not zero is returned and all the booleans are set to false. |
| 3460 | static uint64_t GuessPointerPointer(uint64_t ReferenceValue, |
| 3461 | struct DisassembleInfo *info, |
| 3462 | bool &classref, bool &selref, bool &msgref, |
| 3463 | bool &cfstring) { |
| 3464 | classref = false; |
| 3465 | selref = false; |
| 3466 | msgref = false; |
| 3467 | cfstring = false; |
| 3468 | for (const auto &Load : info->O->load_commands()) { |
| 3469 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
| 3470 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
| 3471 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
| 3472 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
| 3473 | if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 || |
| 3474 | strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || |
| 3475 | strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 || |
| 3476 | strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 || |
| 3477 | strncmp(Sec.sectname, "__cfstring", 16) == 0) && |
| 3478 | ReferenceValue >= Sec.addr && |
| 3479 | ReferenceValue < Sec.addr + Sec.size) { |
| 3480 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
| 3481 | uint64_t object_offset = Sec.offset + sect_offset; |
| 3482 | StringRef MachOContents = info->O->getData(); |
| 3483 | uint64_t object_size = MachOContents.size(); |
| 3484 | const char *object_addr = (const char *)MachOContents.data(); |
| 3485 | if (object_offset < object_size) { |
| 3486 | uint64_t pointer_value; |
| 3487 | memcpy(&pointer_value, object_addr + object_offset, |
| 3488 | sizeof(uint64_t)); |
| 3489 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 3490 | sys::swapByteOrder(pointer_value); |
| 3491 | if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0) |
| 3492 | selref = true; |
| 3493 | else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || |
| 3494 | strncmp(Sec.sectname, "__objc_superrefs", 16) == 0) |
| 3495 | classref = true; |
| 3496 | else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 && |
| 3497 | ReferenceValue + 8 < Sec.addr + Sec.size) { |
| 3498 | msgref = true; |
| 3499 | memcpy(&pointer_value, object_addr + object_offset + 8, |
| 3500 | sizeof(uint64_t)); |
| 3501 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 3502 | sys::swapByteOrder(pointer_value); |
| 3503 | } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0) |
| 3504 | cfstring = true; |
| 3505 | return pointer_value; |
| 3506 | } else { |
| 3507 | return 0; |
| 3508 | } |
| 3509 | } |
| 3510 | } |
| 3511 | } |
| 3512 | // TODO: Look for LC_SEGMENT for 32-bit Mach-O files. |
| 3513 | } |
| 3514 | return 0; |
| 3515 | } |
| 3516 | |
| 3517 | // get_pointer_64 returns a pointer to the bytes in the object file at the |
| 3518 | // Address from a section in the Mach-O file. And indirectly returns the |
| 3519 | // offset into the section, number of bytes left in the section past the offset |
| 3520 | // and which section is was being referenced. If the Address is not in a |
| 3521 | // section nullptr is returned. |
| 3522 | static const char *get_pointer_64(uint64_t Address, uint32_t &offset, |
| 3523 | uint32_t &left, SectionRef &S, |
| 3524 | DisassembleInfo *info, |
| 3525 | bool objc_only = false) { |
| 3526 | offset = 0; |
| 3527 | left = 0; |
| 3528 | S = SectionRef(); |
| 3529 | for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) { |
| 3530 | uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress(); |
| 3531 | uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize(); |
| 3532 | if (SectSize == 0) |
| 3533 | continue; |
| 3534 | if (objc_only) { |
| 3535 | StringRef SectName; |
| 3536 | Expected<StringRef> SecNameOrErr = |
| 3537 | ((*(info->Sections))[SectIdx]).getName(); |
| 3538 | if (SecNameOrErr) |
| 3539 | SectName = *SecNameOrErr; |
| 3540 | else |
| 3541 | consumeError(SecNameOrErr.takeError()); |
| 3542 | |
| 3543 | DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl(); |
| 3544 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
| 3545 | if (SegName != "__OBJC" && SectName != "__cstring") |
| 3546 | continue; |
| 3547 | } |
| 3548 | if (Address >= SectAddress && Address < SectAddress + SectSize) { |
| 3549 | S = (*(info->Sections))[SectIdx]; |
| 3550 | offset = Address - SectAddress; |
| 3551 | left = SectSize - offset; |
| 3552 | StringRef SectContents = unwrapOrError( |
| 3553 | ((*(info->Sections))[SectIdx]).getContents(), info->O->getFileName()); |
| 3554 | return SectContents.data() + offset; |
| 3555 | } |
| 3556 | } |
| 3557 | return nullptr; |
| 3558 | } |
| 3559 | |
| 3560 | static const char *get_pointer_32(uint32_t Address, uint32_t &offset, |
| 3561 | uint32_t &left, SectionRef &S, |
| 3562 | DisassembleInfo *info, |
| 3563 | bool objc_only = false) { |
| 3564 | return get_pointer_64(Address, offset, left, S, info, objc_only); |
| 3565 | } |
| 3566 | |
| 3567 | // get_symbol_64() returns the name of a symbol (or nullptr) and the address of |
| 3568 | // the symbol indirectly through n_value. Based on the relocation information |
| 3569 | // for the specified section offset in the specified section reference. |
| 3570 | // If no relocation information is found and a non-zero ReferenceValue for the |
| 3571 | // symbol is passed, look up that address in the info's AddrMap. |
| 3572 | static const char *get_symbol_64(uint32_t sect_offset, SectionRef S, |
| 3573 | DisassembleInfo *info, uint64_t &n_value, |
| 3574 | uint64_t ReferenceValue = 0) { |
| 3575 | n_value = 0; |
| 3576 | if (!info->verbose) |
| 3577 | return nullptr; |
| 3578 | |
| 3579 | // See if there is an external relocation entry at the sect_offset. |
| 3580 | bool reloc_found = false; |
| 3581 | DataRefImpl Rel; |
| 3582 | MachO::any_relocation_info RE; |
| 3583 | bool isExtern = false; |
| 3584 | SymbolRef Symbol; |
| 3585 | for (const RelocationRef &Reloc : S.relocations()) { |
| 3586 | uint64_t RelocOffset = Reloc.getOffset(); |
| 3587 | if (RelocOffset == sect_offset) { |
| 3588 | Rel = Reloc.getRawDataRefImpl(); |
| 3589 | RE = info->O->getRelocation(Rel); |
| 3590 | if (info->O->isRelocationScattered(RE)) |
| 3591 | continue; |
| 3592 | isExtern = info->O->getPlainRelocationExternal(RE); |
| 3593 | if (isExtern) { |
| 3594 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 3595 | Symbol = *RelocSym; |
| 3596 | } |
| 3597 | reloc_found = true; |
| 3598 | break; |
| 3599 | } |
| 3600 | } |
| 3601 | // If there is an external relocation entry for a symbol in this section |
| 3602 | // at this section_offset then use that symbol's value for the n_value |
| 3603 | // and return its name. |
| 3604 | const char *SymbolName = nullptr; |
| 3605 | if (reloc_found && isExtern) { |
| 3606 | n_value = cantFail(Symbol.getValue()); |
| 3607 | StringRef Name = unwrapOrError(Symbol.getName(), info->O->getFileName()); |
| 3608 | if (!Name.empty()) { |
| 3609 | SymbolName = Name.data(); |
| 3610 | return SymbolName; |
| 3611 | } |
| 3612 | } |
| 3613 | |
| 3614 | // TODO: For fully linked images, look through the external relocation |
| 3615 | // entries off the dynamic symtab command. For these the r_offset is from the |
| 3616 | // start of the first writeable segment in the Mach-O file. So the offset |
| 3617 | // to this section from that segment is passed to this routine by the caller, |
| 3618 | // as the database_offset. Which is the difference of the section's starting |
| 3619 | // address and the first writable segment. |
| 3620 | // |
| 3621 | // NOTE: need add passing the database_offset to this routine. |
| 3622 | |
| 3623 | // We did not find an external relocation entry so look up the ReferenceValue |
| 3624 | // as an address of a symbol and if found return that symbol's name. |
| 3625 | SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); |
| 3626 | |
| 3627 | return SymbolName; |
| 3628 | } |
| 3629 | |
| 3630 | static const char *get_symbol_32(uint32_t sect_offset, SectionRef S, |
| 3631 | DisassembleInfo *info, |
| 3632 | uint32_t ReferenceValue) { |
| 3633 | uint64_t n_value64; |
| 3634 | return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue); |
| 3635 | } |
| 3636 | |
| 3637 | namespace { |
| 3638 | |
| 3639 | // These are structs in the Objective-C meta data and read to produce the |
| 3640 | // comments for disassembly. While these are part of the ABI they are no |
| 3641 | // public defintions. So the are here not in include/llvm/BinaryFormat/MachO.h |
| 3642 | // . |
| 3643 | |
| 3644 | // The cfstring object in a 64-bit Mach-O file. |
| 3645 | struct cfstring64_t { |
| 3646 | uint64_t isa; // class64_t * (64-bit pointer) |
| 3647 | uint64_t flags; // flag bits |
| 3648 | uint64_t characters; // char * (64-bit pointer) |
| 3649 | uint64_t length; // number of non-NULL characters in above |
| 3650 | }; |
| 3651 | |
| 3652 | // The class object in a 64-bit Mach-O file. |
| 3653 | struct class64_t { |
| 3654 | uint64_t isa; // class64_t * (64-bit pointer) |
| 3655 | uint64_t superclass; // class64_t * (64-bit pointer) |
| 3656 | uint64_t cache; // Cache (64-bit pointer) |
| 3657 | uint64_t vtable; // IMP * (64-bit pointer) |
| 3658 | uint64_t data; // class_ro64_t * (64-bit pointer) |
| 3659 | }; |
| 3660 | |
| 3661 | struct class32_t { |
| 3662 | uint32_t isa; /* class32_t * (32-bit pointer) */ |
| 3663 | uint32_t superclass; /* class32_t * (32-bit pointer) */ |
| 3664 | uint32_t cache; /* Cache (32-bit pointer) */ |
| 3665 | uint32_t vtable; /* IMP * (32-bit pointer) */ |
| 3666 | uint32_t data; /* class_ro32_t * (32-bit pointer) */ |
| 3667 | }; |
| 3668 | |
| 3669 | struct class_ro64_t { |
| 3670 | uint32_t flags; |
| 3671 | uint32_t instanceStart; |
| 3672 | uint32_t instanceSize; |
| 3673 | uint32_t reserved; |
| 3674 | uint64_t ivarLayout; // const uint8_t * (64-bit pointer) |
| 3675 | uint64_t name; // const char * (64-bit pointer) |
| 3676 | uint64_t baseMethods; // const method_list_t * (64-bit pointer) |
| 3677 | uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer) |
| 3678 | uint64_t ivars; // const ivar_list_t * (64-bit pointer) |
| 3679 | uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer) |
| 3680 | uint64_t baseProperties; // const struct objc_property_list (64-bit pointer) |
| 3681 | }; |
| 3682 | |
| 3683 | struct class_ro32_t { |
| 3684 | uint32_t flags; |
| 3685 | uint32_t instanceStart; |
| 3686 | uint32_t instanceSize; |
| 3687 | uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */ |
| 3688 | uint32_t name; /* const char * (32-bit pointer) */ |
| 3689 | uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */ |
| 3690 | uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */ |
| 3691 | uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */ |
| 3692 | uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */ |
| 3693 | uint32_t baseProperties; /* const struct objc_property_list * |
| 3694 | (32-bit pointer) */ |
| 3695 | }; |
| 3696 | |
| 3697 | /* Values for class_ro{64,32}_t->flags */ |
| 3698 | #define RO_META(1 << 0) (1 << 0) |
| 3699 | #define RO_ROOT(1 << 1) (1 << 1) |
| 3700 | #define RO_HAS_CXX_STRUCTORS(1 << 2) (1 << 2) |
| 3701 | |
| 3702 | struct method_list64_t { |
| 3703 | uint32_t entsize; |
| 3704 | uint32_t count; |
| 3705 | /* struct method64_t first; These structures follow inline */ |
| 3706 | }; |
| 3707 | |
| 3708 | struct method_list32_t { |
| 3709 | uint32_t entsize; |
| 3710 | uint32_t count; |
| 3711 | /* struct method32_t first; These structures follow inline */ |
| 3712 | }; |
| 3713 | |
| 3714 | struct method64_t { |
| 3715 | uint64_t name; /* SEL (64-bit pointer) */ |
| 3716 | uint64_t types; /* const char * (64-bit pointer) */ |
| 3717 | uint64_t imp; /* IMP (64-bit pointer) */ |
| 3718 | }; |
| 3719 | |
| 3720 | struct method32_t { |
| 3721 | uint32_t name; /* SEL (32-bit pointer) */ |
| 3722 | uint32_t types; /* const char * (32-bit pointer) */ |
| 3723 | uint32_t imp; /* IMP (32-bit pointer) */ |
| 3724 | }; |
| 3725 | |
| 3726 | struct protocol_list64_t { |
| 3727 | uint64_t count; /* uintptr_t (a 64-bit value) */ |
| 3728 | /* struct protocol64_t * list[0]; These pointers follow inline */ |
| 3729 | }; |
| 3730 | |
| 3731 | struct protocol_list32_t { |
| 3732 | uint32_t count; /* uintptr_t (a 32-bit value) */ |
| 3733 | /* struct protocol32_t * list[0]; These pointers follow inline */ |
| 3734 | }; |
| 3735 | |
| 3736 | struct protocol64_t { |
| 3737 | uint64_t isa; /* id * (64-bit pointer) */ |
| 3738 | uint64_t name; /* const char * (64-bit pointer) */ |
| 3739 | uint64_t protocols; /* struct protocol_list64_t * |
| 3740 | (64-bit pointer) */ |
| 3741 | uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */ |
| 3742 | uint64_t classMethods; /* method_list_t * (64-bit pointer) */ |
| 3743 | uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */ |
| 3744 | uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */ |
| 3745 | uint64_t instanceProperties; /* struct objc_property_list * |
| 3746 | (64-bit pointer) */ |
| 3747 | }; |
| 3748 | |
| 3749 | struct protocol32_t { |
| 3750 | uint32_t isa; /* id * (32-bit pointer) */ |
| 3751 | uint32_t name; /* const char * (32-bit pointer) */ |
| 3752 | uint32_t protocols; /* struct protocol_list_t * |
| 3753 | (32-bit pointer) */ |
| 3754 | uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */ |
| 3755 | uint32_t classMethods; /* method_list_t * (32-bit pointer) */ |
| 3756 | uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */ |
| 3757 | uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */ |
| 3758 | uint32_t instanceProperties; /* struct objc_property_list * |
| 3759 | (32-bit pointer) */ |
| 3760 | }; |
| 3761 | |
| 3762 | struct ivar_list64_t { |
| 3763 | uint32_t entsize; |
| 3764 | uint32_t count; |
| 3765 | /* struct ivar64_t first; These structures follow inline */ |
| 3766 | }; |
| 3767 | |
| 3768 | struct ivar_list32_t { |
| 3769 | uint32_t entsize; |
| 3770 | uint32_t count; |
| 3771 | /* struct ivar32_t first; These structures follow inline */ |
| 3772 | }; |
| 3773 | |
| 3774 | struct ivar64_t { |
| 3775 | uint64_t offset; /* uintptr_t * (64-bit pointer) */ |
| 3776 | uint64_t name; /* const char * (64-bit pointer) */ |
| 3777 | uint64_t type; /* const char * (64-bit pointer) */ |
| 3778 | uint32_t alignment; |
| 3779 | uint32_t size; |
| 3780 | }; |
| 3781 | |
| 3782 | struct ivar32_t { |
| 3783 | uint32_t offset; /* uintptr_t * (32-bit pointer) */ |
| 3784 | uint32_t name; /* const char * (32-bit pointer) */ |
| 3785 | uint32_t type; /* const char * (32-bit pointer) */ |
| 3786 | uint32_t alignment; |
| 3787 | uint32_t size; |
| 3788 | }; |
| 3789 | |
| 3790 | struct objc_property_list64 { |
| 3791 | uint32_t entsize; |
| 3792 | uint32_t count; |
| 3793 | /* struct objc_property64 first; These structures follow inline */ |
| 3794 | }; |
| 3795 | |
| 3796 | struct objc_property_list32 { |
| 3797 | uint32_t entsize; |
| 3798 | uint32_t count; |
| 3799 | /* struct objc_property32 first; These structures follow inline */ |
| 3800 | }; |
| 3801 | |
| 3802 | struct objc_property64 { |
| 3803 | uint64_t name; /* const char * (64-bit pointer) */ |
| 3804 | uint64_t attributes; /* const char * (64-bit pointer) */ |
| 3805 | }; |
| 3806 | |
| 3807 | struct objc_property32 { |
| 3808 | uint32_t name; /* const char * (32-bit pointer) */ |
| 3809 | uint32_t attributes; /* const char * (32-bit pointer) */ |
| 3810 | }; |
| 3811 | |
| 3812 | struct category64_t { |
| 3813 | uint64_t name; /* const char * (64-bit pointer) */ |
| 3814 | uint64_t cls; /* struct class_t * (64-bit pointer) */ |
| 3815 | uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */ |
| 3816 | uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */ |
| 3817 | uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */ |
| 3818 | uint64_t instanceProperties; /* struct objc_property_list * |
| 3819 | (64-bit pointer) */ |
| 3820 | }; |
| 3821 | |
| 3822 | struct category32_t { |
| 3823 | uint32_t name; /* const char * (32-bit pointer) */ |
| 3824 | uint32_t cls; /* struct class_t * (32-bit pointer) */ |
| 3825 | uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */ |
| 3826 | uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */ |
| 3827 | uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */ |
| 3828 | uint32_t instanceProperties; /* struct objc_property_list * |
| 3829 | (32-bit pointer) */ |
| 3830 | }; |
| 3831 | |
| 3832 | struct objc_image_info64 { |
| 3833 | uint32_t version; |
| 3834 | uint32_t flags; |
| 3835 | }; |
| 3836 | struct objc_image_info32 { |
| 3837 | uint32_t version; |
| 3838 | uint32_t flags; |
| 3839 | }; |
| 3840 | struct imageInfo_t { |
| 3841 | uint32_t version; |
| 3842 | uint32_t flags; |
| 3843 | }; |
| 3844 | /* masks for objc_image_info.flags */ |
| 3845 | #define OBJC_IMAGE_IS_REPLACEMENT(1 << 0) (1 << 0) |
| 3846 | #define OBJC_IMAGE_SUPPORTS_GC(1 << 1) (1 << 1) |
| 3847 | #define OBJC_IMAGE_IS_SIMULATED(1 << 5) (1 << 5) |
| 3848 | #define OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES(1 << 6) (1 << 6) |
| 3849 | |
| 3850 | struct message_ref64 { |
| 3851 | uint64_t imp; /* IMP (64-bit pointer) */ |
| 3852 | uint64_t sel; /* SEL (64-bit pointer) */ |
| 3853 | }; |
| 3854 | |
| 3855 | struct message_ref32 { |
| 3856 | uint32_t imp; /* IMP (32-bit pointer) */ |
| 3857 | uint32_t sel; /* SEL (32-bit pointer) */ |
| 3858 | }; |
| 3859 | |
| 3860 | // Objective-C 1 (32-bit only) meta data structs. |
| 3861 | |
| 3862 | struct objc_module_t { |
| 3863 | uint32_t version; |
| 3864 | uint32_t size; |
| 3865 | uint32_t name; /* char * (32-bit pointer) */ |
| 3866 | uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */ |
| 3867 | }; |
| 3868 | |
| 3869 | struct objc_symtab_t { |
| 3870 | uint32_t sel_ref_cnt; |
| 3871 | uint32_t refs; /* SEL * (32-bit pointer) */ |
| 3872 | uint16_t cls_def_cnt; |
| 3873 | uint16_t cat_def_cnt; |
| 3874 | // uint32_t defs[1]; /* void * (32-bit pointer) variable size */ |
| 3875 | }; |
| 3876 | |
| 3877 | struct objc_class_t { |
| 3878 | uint32_t isa; /* struct objc_class * (32-bit pointer) */ |
| 3879 | uint32_t super_class; /* struct objc_class * (32-bit pointer) */ |
| 3880 | uint32_t name; /* const char * (32-bit pointer) */ |
| 3881 | int32_t version; |
| 3882 | int32_t info; |
| 3883 | int32_t instance_size; |
| 3884 | uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */ |
| 3885 | uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */ |
| 3886 | uint32_t cache; /* struct objc_cache * (32-bit pointer) */ |
| 3887 | uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */ |
| 3888 | }; |
| 3889 | |
| 3890 | #define CLS_GETINFO(cls, infomask)((cls)->info & (infomask)) ((cls)->info & (infomask)) |
| 3891 | // class is not a metaclass |
| 3892 | #define CLS_CLASS0x1 0x1 |
| 3893 | // class is a metaclass |
| 3894 | #define CLS_META0x2 0x2 |
| 3895 | |
| 3896 | struct objc_category_t { |
| 3897 | uint32_t category_name; /* char * (32-bit pointer) */ |
| 3898 | uint32_t class_name; /* char * (32-bit pointer) */ |
| 3899 | uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */ |
| 3900 | uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */ |
| 3901 | uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */ |
| 3902 | }; |
| 3903 | |
| 3904 | struct objc_ivar_t { |
| 3905 | uint32_t ivar_name; /* char * (32-bit pointer) */ |
| 3906 | uint32_t ivar_type; /* char * (32-bit pointer) */ |
| 3907 | int32_t ivar_offset; |
| 3908 | }; |
| 3909 | |
| 3910 | struct objc_ivar_list_t { |
| 3911 | int32_t ivar_count; |
| 3912 | // struct objc_ivar_t ivar_list[1]; /* variable length structure */ |
| 3913 | }; |
| 3914 | |
| 3915 | struct objc_method_list_t { |
| 3916 | uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */ |
| 3917 | int32_t method_count; |
| 3918 | // struct objc_method_t method_list[1]; /* variable length structure */ |
| 3919 | }; |
| 3920 | |
| 3921 | struct objc_method_t { |
| 3922 | uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */ |
| 3923 | uint32_t method_types; /* char * (32-bit pointer) */ |
| 3924 | uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...) |
| 3925 | (32-bit pointer) */ |
| 3926 | }; |
| 3927 | |
| 3928 | struct objc_protocol_list_t { |
| 3929 | uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */ |
| 3930 | int32_t count; |
| 3931 | // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t * |
| 3932 | // (32-bit pointer) */ |
| 3933 | }; |
| 3934 | |
| 3935 | struct objc_protocol_t { |
| 3936 | uint32_t isa; /* struct objc_class * (32-bit pointer) */ |
| 3937 | uint32_t protocol_name; /* char * (32-bit pointer) */ |
| 3938 | uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */ |
| 3939 | uint32_t instance_methods; /* struct objc_method_description_list * |
| 3940 | (32-bit pointer) */ |
| 3941 | uint32_t class_methods; /* struct objc_method_description_list * |
| 3942 | (32-bit pointer) */ |
| 3943 | }; |
| 3944 | |
| 3945 | struct objc_method_description_list_t { |
| 3946 | int32_t count; |
| 3947 | // struct objc_method_description_t list[1]; |
| 3948 | }; |
| 3949 | |
| 3950 | struct objc_method_description_t { |
| 3951 | uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */ |
| 3952 | uint32_t types; /* char * (32-bit pointer) */ |
| 3953 | }; |
| 3954 | |
| 3955 | inline void swapStruct(struct cfstring64_t &cfs) { |
| 3956 | sys::swapByteOrder(cfs.isa); |
| 3957 | sys::swapByteOrder(cfs.flags); |
| 3958 | sys::swapByteOrder(cfs.characters); |
| 3959 | sys::swapByteOrder(cfs.length); |
| 3960 | } |
| 3961 | |
| 3962 | inline void swapStruct(struct class64_t &c) { |
| 3963 | sys::swapByteOrder(c.isa); |
| 3964 | sys::swapByteOrder(c.superclass); |
| 3965 | sys::swapByteOrder(c.cache); |
| 3966 | sys::swapByteOrder(c.vtable); |
| 3967 | sys::swapByteOrder(c.data); |
| 3968 | } |
| 3969 | |
| 3970 | inline void swapStruct(struct class32_t &c) { |
| 3971 | sys::swapByteOrder(c.isa); |
| 3972 | sys::swapByteOrder(c.superclass); |
| 3973 | sys::swapByteOrder(c.cache); |
| 3974 | sys::swapByteOrder(c.vtable); |
| 3975 | sys::swapByteOrder(c.data); |
| 3976 | } |
| 3977 | |
| 3978 | inline void swapStruct(struct class_ro64_t &cro) { |
| 3979 | sys::swapByteOrder(cro.flags); |
| 3980 | sys::swapByteOrder(cro.instanceStart); |
| 3981 | sys::swapByteOrder(cro.instanceSize); |
| 3982 | sys::swapByteOrder(cro.reserved); |
| 3983 | sys::swapByteOrder(cro.ivarLayout); |
| 3984 | sys::swapByteOrder(cro.name); |
| 3985 | sys::swapByteOrder(cro.baseMethods); |
| 3986 | sys::swapByteOrder(cro.baseProtocols); |
| 3987 | sys::swapByteOrder(cro.ivars); |
| 3988 | sys::swapByteOrder(cro.weakIvarLayout); |
| 3989 | sys::swapByteOrder(cro.baseProperties); |
| 3990 | } |
| 3991 | |
| 3992 | inline void swapStruct(struct class_ro32_t &cro) { |
| 3993 | sys::swapByteOrder(cro.flags); |
| 3994 | sys::swapByteOrder(cro.instanceStart); |
| 3995 | sys::swapByteOrder(cro.instanceSize); |
| 3996 | sys::swapByteOrder(cro.ivarLayout); |
| 3997 | sys::swapByteOrder(cro.name); |
| 3998 | sys::swapByteOrder(cro.baseMethods); |
| 3999 | sys::swapByteOrder(cro.baseProtocols); |
| 4000 | sys::swapByteOrder(cro.ivars); |
| 4001 | sys::swapByteOrder(cro.weakIvarLayout); |
| 4002 | sys::swapByteOrder(cro.baseProperties); |
| 4003 | } |
| 4004 | |
| 4005 | inline void swapStruct(struct method_list64_t &ml) { |
| 4006 | sys::swapByteOrder(ml.entsize); |
| 4007 | sys::swapByteOrder(ml.count); |
| 4008 | } |
| 4009 | |
| 4010 | inline void swapStruct(struct method_list32_t &ml) { |
| 4011 | sys::swapByteOrder(ml.entsize); |
| 4012 | sys::swapByteOrder(ml.count); |
| 4013 | } |
| 4014 | |
| 4015 | inline void swapStruct(struct method64_t &m) { |
| 4016 | sys::swapByteOrder(m.name); |
| 4017 | sys::swapByteOrder(m.types); |
| 4018 | sys::swapByteOrder(m.imp); |
| 4019 | } |
| 4020 | |
| 4021 | inline void swapStruct(struct method32_t &m) { |
| 4022 | sys::swapByteOrder(m.name); |
| 4023 | sys::swapByteOrder(m.types); |
| 4024 | sys::swapByteOrder(m.imp); |
| 4025 | } |
| 4026 | |
| 4027 | inline void swapStruct(struct protocol_list64_t &pl) { |
| 4028 | sys::swapByteOrder(pl.count); |
| 4029 | } |
| 4030 | |
| 4031 | inline void swapStruct(struct protocol_list32_t &pl) { |
| 4032 | sys::swapByteOrder(pl.count); |
| 4033 | } |
| 4034 | |
| 4035 | inline void swapStruct(struct protocol64_t &p) { |
| 4036 | sys::swapByteOrder(p.isa); |
| 4037 | sys::swapByteOrder(p.name); |
| 4038 | sys::swapByteOrder(p.protocols); |
| 4039 | sys::swapByteOrder(p.instanceMethods); |
| 4040 | sys::swapByteOrder(p.classMethods); |
| 4041 | sys::swapByteOrder(p.optionalInstanceMethods); |
| 4042 | sys::swapByteOrder(p.optionalClassMethods); |
| 4043 | sys::swapByteOrder(p.instanceProperties); |
| 4044 | } |
| 4045 | |
| 4046 | inline void swapStruct(struct protocol32_t &p) { |
| 4047 | sys::swapByteOrder(p.isa); |
| 4048 | sys::swapByteOrder(p.name); |
| 4049 | sys::swapByteOrder(p.protocols); |
| 4050 | sys::swapByteOrder(p.instanceMethods); |
| 4051 | sys::swapByteOrder(p.classMethods); |
| 4052 | sys::swapByteOrder(p.optionalInstanceMethods); |
| 4053 | sys::swapByteOrder(p.optionalClassMethods); |
| 4054 | sys::swapByteOrder(p.instanceProperties); |
| 4055 | } |
| 4056 | |
| 4057 | inline void swapStruct(struct ivar_list64_t &il) { |
| 4058 | sys::swapByteOrder(il.entsize); |
| 4059 | sys::swapByteOrder(il.count); |
| 4060 | } |
| 4061 | |
| 4062 | inline void swapStruct(struct ivar_list32_t &il) { |
| 4063 | sys::swapByteOrder(il.entsize); |
| 4064 | sys::swapByteOrder(il.count); |
| 4065 | } |
| 4066 | |
| 4067 | inline void swapStruct(struct ivar64_t &i) { |
| 4068 | sys::swapByteOrder(i.offset); |
| 4069 | sys::swapByteOrder(i.name); |
| 4070 | sys::swapByteOrder(i.type); |
| 4071 | sys::swapByteOrder(i.alignment); |
| 4072 | sys::swapByteOrder(i.size); |
| 4073 | } |
| 4074 | |
| 4075 | inline void swapStruct(struct ivar32_t &i) { |
| 4076 | sys::swapByteOrder(i.offset); |
| 4077 | sys::swapByteOrder(i.name); |
| 4078 | sys::swapByteOrder(i.type); |
| 4079 | sys::swapByteOrder(i.alignment); |
| 4080 | sys::swapByteOrder(i.size); |
| 4081 | } |
| 4082 | |
| 4083 | inline void swapStruct(struct objc_property_list64 &pl) { |
| 4084 | sys::swapByteOrder(pl.entsize); |
| 4085 | sys::swapByteOrder(pl.count); |
| 4086 | } |
| 4087 | |
| 4088 | inline void swapStruct(struct objc_property_list32 &pl) { |
| 4089 | sys::swapByteOrder(pl.entsize); |
| 4090 | sys::swapByteOrder(pl.count); |
| 4091 | } |
| 4092 | |
| 4093 | inline void swapStruct(struct objc_property64 &op) { |
| 4094 | sys::swapByteOrder(op.name); |
| 4095 | sys::swapByteOrder(op.attributes); |
| 4096 | } |
| 4097 | |
| 4098 | inline void swapStruct(struct objc_property32 &op) { |
| 4099 | sys::swapByteOrder(op.name); |
| 4100 | sys::swapByteOrder(op.attributes); |
| 4101 | } |
| 4102 | |
| 4103 | inline void swapStruct(struct category64_t &c) { |
| 4104 | sys::swapByteOrder(c.name); |
| 4105 | sys::swapByteOrder(c.cls); |
| 4106 | sys::swapByteOrder(c.instanceMethods); |
| 4107 | sys::swapByteOrder(c.classMethods); |
| 4108 | sys::swapByteOrder(c.protocols); |
| 4109 | sys::swapByteOrder(c.instanceProperties); |
| 4110 | } |
| 4111 | |
| 4112 | inline void swapStruct(struct category32_t &c) { |
| 4113 | sys::swapByteOrder(c.name); |
| 4114 | sys::swapByteOrder(c.cls); |
| 4115 | sys::swapByteOrder(c.instanceMethods); |
| 4116 | sys::swapByteOrder(c.classMethods); |
| 4117 | sys::swapByteOrder(c.protocols); |
| 4118 | sys::swapByteOrder(c.instanceProperties); |
| 4119 | } |
| 4120 | |
| 4121 | inline void swapStruct(struct objc_image_info64 &o) { |
| 4122 | sys::swapByteOrder(o.version); |
| 4123 | sys::swapByteOrder(o.flags); |
| 4124 | } |
| 4125 | |
| 4126 | inline void swapStruct(struct objc_image_info32 &o) { |
| 4127 | sys::swapByteOrder(o.version); |
| 4128 | sys::swapByteOrder(o.flags); |
| 4129 | } |
| 4130 | |
| 4131 | inline void swapStruct(struct imageInfo_t &o) { |
| 4132 | sys::swapByteOrder(o.version); |
| 4133 | sys::swapByteOrder(o.flags); |
| 4134 | } |
| 4135 | |
| 4136 | inline void swapStruct(struct message_ref64 &mr) { |
| 4137 | sys::swapByteOrder(mr.imp); |
| 4138 | sys::swapByteOrder(mr.sel); |
| 4139 | } |
| 4140 | |
| 4141 | inline void swapStruct(struct message_ref32 &mr) { |
| 4142 | sys::swapByteOrder(mr.imp); |
| 4143 | sys::swapByteOrder(mr.sel); |
| 4144 | } |
| 4145 | |
| 4146 | inline void swapStruct(struct objc_module_t &module) { |
| 4147 | sys::swapByteOrder(module.version); |
| 4148 | sys::swapByteOrder(module.size); |
| 4149 | sys::swapByteOrder(module.name); |
| 4150 | sys::swapByteOrder(module.symtab); |
| 4151 | } |
| 4152 | |
| 4153 | inline void swapStruct(struct objc_symtab_t &symtab) { |
| 4154 | sys::swapByteOrder(symtab.sel_ref_cnt); |
| 4155 | sys::swapByteOrder(symtab.refs); |
| 4156 | sys::swapByteOrder(symtab.cls_def_cnt); |
| 4157 | sys::swapByteOrder(symtab.cat_def_cnt); |
| 4158 | } |
| 4159 | |
| 4160 | inline void swapStruct(struct objc_class_t &objc_class) { |
| 4161 | sys::swapByteOrder(objc_class.isa); |
| 4162 | sys::swapByteOrder(objc_class.super_class); |
| 4163 | sys::swapByteOrder(objc_class.name); |
| 4164 | sys::swapByteOrder(objc_class.version); |
| 4165 | sys::swapByteOrder(objc_class.info); |
| 4166 | sys::swapByteOrder(objc_class.instance_size); |
| 4167 | sys::swapByteOrder(objc_class.ivars); |
| 4168 | sys::swapByteOrder(objc_class.methodLists); |
| 4169 | sys::swapByteOrder(objc_class.cache); |
| 4170 | sys::swapByteOrder(objc_class.protocols); |
| 4171 | } |
| 4172 | |
| 4173 | inline void swapStruct(struct objc_category_t &objc_category) { |
| 4174 | sys::swapByteOrder(objc_category.category_name); |
| 4175 | sys::swapByteOrder(objc_category.class_name); |
| 4176 | sys::swapByteOrder(objc_category.instance_methods); |
| 4177 | sys::swapByteOrder(objc_category.class_methods); |
| 4178 | sys::swapByteOrder(objc_category.protocols); |
| 4179 | } |
| 4180 | |
| 4181 | inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) { |
| 4182 | sys::swapByteOrder(objc_ivar_list.ivar_count); |
| 4183 | } |
| 4184 | |
| 4185 | inline void swapStruct(struct objc_ivar_t &objc_ivar) { |
| 4186 | sys::swapByteOrder(objc_ivar.ivar_name); |
| 4187 | sys::swapByteOrder(objc_ivar.ivar_type); |
| 4188 | sys::swapByteOrder(objc_ivar.ivar_offset); |
| 4189 | } |
| 4190 | |
| 4191 | inline void swapStruct(struct objc_method_list_t &method_list) { |
| 4192 | sys::swapByteOrder(method_list.obsolete); |
| 4193 | sys::swapByteOrder(method_list.method_count); |
| 4194 | } |
| 4195 | |
| 4196 | inline void swapStruct(struct objc_method_t &method) { |
| 4197 | sys::swapByteOrder(method.method_name); |
| 4198 | sys::swapByteOrder(method.method_types); |
| 4199 | sys::swapByteOrder(method.method_imp); |
| 4200 | } |
| 4201 | |
| 4202 | inline void swapStruct(struct objc_protocol_list_t &protocol_list) { |
| 4203 | sys::swapByteOrder(protocol_list.next); |
| 4204 | sys::swapByteOrder(protocol_list.count); |
| 4205 | } |
| 4206 | |
| 4207 | inline void swapStruct(struct objc_protocol_t &protocol) { |
| 4208 | sys::swapByteOrder(protocol.isa); |
| 4209 | sys::swapByteOrder(protocol.protocol_name); |
| 4210 | sys::swapByteOrder(protocol.protocol_list); |
| 4211 | sys::swapByteOrder(protocol.instance_methods); |
| 4212 | sys::swapByteOrder(protocol.class_methods); |
| 4213 | } |
| 4214 | |
| 4215 | inline void swapStruct(struct objc_method_description_list_t &mdl) { |
| 4216 | sys::swapByteOrder(mdl.count); |
| 4217 | } |
| 4218 | |
| 4219 | inline void swapStruct(struct objc_method_description_t &md) { |
| 4220 | sys::swapByteOrder(md.name); |
| 4221 | sys::swapByteOrder(md.types); |
| 4222 | } |
| 4223 | |
| 4224 | } // namespace |
| 4225 | |
| 4226 | static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, |
| 4227 | struct DisassembleInfo *info); |
| 4228 | |
| 4229 | // get_objc2_64bit_class_name() is used for disassembly and is passed a pointer |
| 4230 | // to an Objective-C class and returns the class name. It is also passed the |
| 4231 | // address of the pointer, so when the pointer is zero as it can be in an .o |
| 4232 | // file, that is used to look for an external relocation entry with a symbol |
| 4233 | // name. |
| 4234 | static const char *get_objc2_64bit_class_name(uint64_t pointer_value, |
| 4235 | uint64_t ReferenceValue, |
| 4236 | struct DisassembleInfo *info) { |
| 4237 | const char *r; |
| 4238 | uint32_t offset, left; |
| 4239 | SectionRef S; |
| 4240 | |
| 4241 | // The pointer_value can be 0 in an object file and have a relocation |
| 4242 | // entry for the class symbol at the ReferenceValue (the address of the |
| 4243 | // pointer). |
| 4244 | if (pointer_value == 0) { |
| 4245 | r = get_pointer_64(ReferenceValue, offset, left, S, info); |
| 4246 | if (r == nullptr || left < sizeof(uint64_t)) |
| 4247 | return nullptr; |
| 4248 | uint64_t n_value; |
| 4249 | const char *symbol_name = get_symbol_64(offset, S, info, n_value); |
| 4250 | if (symbol_name == nullptr) |
| 4251 | return nullptr; |
| 4252 | const char *class_name = strrchr(symbol_name, '$'); |
| 4253 | if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0') |
| 4254 | return class_name + 2; |
| 4255 | else |
| 4256 | return nullptr; |
| 4257 | } |
| 4258 | |
| 4259 | // The case were the pointer_value is non-zero and points to a class defined |
| 4260 | // in this Mach-O file. |
| 4261 | r = get_pointer_64(pointer_value, offset, left, S, info); |
| 4262 | if (r == nullptr || left < sizeof(struct class64_t)) |
| 4263 | return nullptr; |
| 4264 | struct class64_t c; |
| 4265 | memcpy(&c, r, sizeof(struct class64_t)); |
| 4266 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4267 | swapStruct(c); |
| 4268 | if (c.data == 0) |
| 4269 | return nullptr; |
| 4270 | r = get_pointer_64(c.data, offset, left, S, info); |
| 4271 | if (r == nullptr || left < sizeof(struct class_ro64_t)) |
| 4272 | return nullptr; |
| 4273 | struct class_ro64_t cro; |
| 4274 | memcpy(&cro, r, sizeof(struct class_ro64_t)); |
| 4275 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4276 | swapStruct(cro); |
| 4277 | if (cro.name == 0) |
| 4278 | return nullptr; |
| 4279 | const char *name = get_pointer_64(cro.name, offset, left, S, info); |
| 4280 | return name; |
| 4281 | } |
| 4282 | |
| 4283 | // get_objc2_64bit_cfstring_name is used for disassembly and is passed a |
| 4284 | // pointer to a cfstring and returns its name or nullptr. |
| 4285 | static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue, |
| 4286 | struct DisassembleInfo *info) { |
| 4287 | const char *r, *name; |
| 4288 | uint32_t offset, left; |
| 4289 | SectionRef S; |
| 4290 | struct cfstring64_t cfs; |
| 4291 | uint64_t cfs_characters; |
| 4292 | |
| 4293 | r = get_pointer_64(ReferenceValue, offset, left, S, info); |
| 4294 | if (r == nullptr || left < sizeof(struct cfstring64_t)) |
| 4295 | return nullptr; |
| 4296 | memcpy(&cfs, r, sizeof(struct cfstring64_t)); |
| 4297 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4298 | swapStruct(cfs); |
| 4299 | if (cfs.characters == 0) { |
| 4300 | uint64_t n_value; |
| 4301 | const char *symbol_name = get_symbol_64( |
| 4302 | offset + offsetof(struct cfstring64_t, characters)__builtin_offsetof(struct cfstring64_t, characters), S, info, n_value); |
| 4303 | if (symbol_name == nullptr) |
| 4304 | return nullptr; |
| 4305 | cfs_characters = n_value; |
| 4306 | } else |
| 4307 | cfs_characters = cfs.characters; |
| 4308 | name = get_pointer_64(cfs_characters, offset, left, S, info); |
| 4309 | |
| 4310 | return name; |
| 4311 | } |
| 4312 | |
| 4313 | // get_objc2_64bit_selref() is used for disassembly and is passed a the address |
| 4314 | // of a pointer to an Objective-C selector reference when the pointer value is |
| 4315 | // zero as in a .o file and is likely to have a external relocation entry with |
| 4316 | // who's symbol's n_value is the real pointer to the selector name. If that is |
| 4317 | // the case the real pointer to the selector name is returned else 0 is |
| 4318 | // returned |
| 4319 | static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue, |
| 4320 | struct DisassembleInfo *info) { |
| 4321 | uint32_t offset, left; |
| 4322 | SectionRef S; |
| 4323 | |
| 4324 | const char *r = get_pointer_64(ReferenceValue, offset, left, S, info); |
| 4325 | if (r == nullptr || left < sizeof(uint64_t)) |
| 4326 | return 0; |
| 4327 | uint64_t n_value; |
| 4328 | const char *symbol_name = get_symbol_64(offset, S, info, n_value); |
| 4329 | if (symbol_name == nullptr) |
| 4330 | return 0; |
| 4331 | return n_value; |
| 4332 | } |
| 4333 | |
| 4334 | static const SectionRef get_section(MachOObjectFile *O, const char *segname, |
| 4335 | const char *sectname) { |
| 4336 | for (const SectionRef &Section : O->sections()) { |
| 4337 | StringRef SectName; |
| 4338 | Expected<StringRef> SecNameOrErr = Section.getName(); |
| 4339 | if (SecNameOrErr) |
| 4340 | SectName = *SecNameOrErr; |
| 4341 | else |
| 4342 | consumeError(SecNameOrErr.takeError()); |
| 4343 | |
| 4344 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
| 4345 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
| 4346 | if (SegName == segname && SectName == sectname) |
| 4347 | return Section; |
| 4348 | } |
| 4349 | return SectionRef(); |
| 4350 | } |
| 4351 | |
| 4352 | static void |
| 4353 | walk_pointer_list_64(const char *listname, const SectionRef S, |
| 4354 | MachOObjectFile *O, struct DisassembleInfo *info, |
| 4355 | void (*func)(uint64_t, struct DisassembleInfo *info)) { |
| 4356 | if (S == SectionRef()) |
| 4357 | return; |
| 4358 | |
| 4359 | StringRef SectName; |
| 4360 | Expected<StringRef> SecNameOrErr = S.getName(); |
| 4361 | if (SecNameOrErr) |
| 4362 | SectName = *SecNameOrErr; |
| 4363 | else |
| 4364 | consumeError(SecNameOrErr.takeError()); |
| 4365 | |
| 4366 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 4367 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
| 4368 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 4369 | |
| 4370 | StringRef BytesStr = unwrapOrError(S.getContents(), O->getFileName()); |
| 4371 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
| 4372 | |
| 4373 | for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) { |
| 4374 | uint32_t left = S.getSize() - i; |
| 4375 | uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t); |
| 4376 | uint64_t p = 0; |
| 4377 | memcpy(&p, Contents + i, size); |
| 4378 | if (i + sizeof(uint64_t) > S.getSize()) |
| 4379 | outs() << listname << " list pointer extends past end of (" << SegName |
| 4380 | << "," << SectName << ") section\n"; |
| 4381 | outs() << format("%016" PRIx64"l" "x", S.getAddress() + i) << " "; |
| 4382 | |
| 4383 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4384 | sys::swapByteOrder(p); |
| 4385 | |
| 4386 | uint64_t n_value = 0; |
| 4387 | const char *name = get_symbol_64(i, S, info, n_value, p); |
| 4388 | if (name == nullptr) |
| 4389 | name = get_dyld_bind_info_symbolname(S.getAddress() + i, info); |
| 4390 | |
| 4391 | if (n_value != 0) { |
| 4392 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4393 | if (p != 0) |
| 4394 | outs() << " + " << format("0x%" PRIx64"l" "x", p); |
| 4395 | } else |
| 4396 | outs() << format("0x%" PRIx64"l" "x", p); |
| 4397 | if (name != nullptr) |
| 4398 | outs() << " " << name; |
| 4399 | outs() << "\n"; |
| 4400 | |
| 4401 | p += n_value; |
| 4402 | if (func) |
| 4403 | func(p, info); |
| 4404 | } |
| 4405 | } |
| 4406 | |
| 4407 | static void |
| 4408 | walk_pointer_list_32(const char *listname, const SectionRef S, |
| 4409 | MachOObjectFile *O, struct DisassembleInfo *info, |
| 4410 | void (*func)(uint32_t, struct DisassembleInfo *info)) { |
| 4411 | if (S == SectionRef()) |
| 4412 | return; |
| 4413 | |
| 4414 | StringRef SectName = unwrapOrError(S.getName(), O->getFileName()); |
| 4415 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 4416 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
| 4417 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 4418 | |
| 4419 | StringRef BytesStr = unwrapOrError(S.getContents(), O->getFileName()); |
| 4420 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
| 4421 | |
| 4422 | for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) { |
| 4423 | uint32_t left = S.getSize() - i; |
| 4424 | uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t); |
| 4425 | uint32_t p = 0; |
| 4426 | memcpy(&p, Contents + i, size); |
| 4427 | if (i + sizeof(uint32_t) > S.getSize()) |
| 4428 | outs() << listname << " list pointer extends past end of (" << SegName |
| 4429 | << "," << SectName << ") section\n"; |
| 4430 | uint32_t Address = S.getAddress() + i; |
| 4431 | outs() << format("%08" PRIx32"x", Address) << " "; |
| 4432 | |
| 4433 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4434 | sys::swapByteOrder(p); |
| 4435 | outs() << format("0x%" PRIx32"x", p); |
| 4436 | |
| 4437 | const char *name = get_symbol_32(i, S, info, p); |
| 4438 | if (name != nullptr) |
| 4439 | outs() << " " << name; |
| 4440 | outs() << "\n"; |
| 4441 | |
| 4442 | if (func) |
| 4443 | func(p, info); |
| 4444 | } |
| 4445 | } |
| 4446 | |
| 4447 | static void print_layout_map(const char *layout_map, uint32_t left) { |
| 4448 | if (layout_map == nullptr) |
| 4449 | return; |
| 4450 | outs() << " layout map: "; |
| 4451 | do { |
| 4452 | outs() << format("0x%02" PRIx32"x", (*layout_map) & 0xff) << " "; |
| 4453 | left--; |
| 4454 | layout_map++; |
| 4455 | } while (*layout_map != '\0' && left != 0); |
| 4456 | outs() << "\n"; |
| 4457 | } |
| 4458 | |
| 4459 | static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) { |
| 4460 | uint32_t offset, left; |
| 4461 | SectionRef S; |
| 4462 | const char *layout_map; |
| 4463 | |
| 4464 | if (p == 0) |
| 4465 | return; |
| 4466 | layout_map = get_pointer_64(p, offset, left, S, info); |
| 4467 | print_layout_map(layout_map, left); |
| 4468 | } |
| 4469 | |
| 4470 | static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) { |
| 4471 | uint32_t offset, left; |
| 4472 | SectionRef S; |
| 4473 | const char *layout_map; |
| 4474 | |
| 4475 | if (p == 0) |
| 4476 | return; |
| 4477 | layout_map = get_pointer_32(p, offset, left, S, info); |
| 4478 | print_layout_map(layout_map, left); |
| 4479 | } |
| 4480 | |
| 4481 | static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info, |
| 4482 | const char *indent) { |
| 4483 | struct method_list64_t ml; |
| 4484 | struct method64_t m; |
| 4485 | const char *r; |
| 4486 | uint32_t offset, xoffset, left, i; |
| 4487 | SectionRef S, xS; |
| 4488 | const char *name, *sym_name; |
| 4489 | uint64_t n_value; |
| 4490 | |
| 4491 | r = get_pointer_64(p, offset, left, S, info); |
| 4492 | if (r == nullptr) |
| 4493 | return; |
| 4494 | memset(&ml, '\0', sizeof(struct method_list64_t)); |
| 4495 | if (left < sizeof(struct method_list64_t)) { |
| 4496 | memcpy(&ml, r, left); |
| 4497 | outs() << " (method_list_t entends past the end of the section)\n"; |
| 4498 | } else |
| 4499 | memcpy(&ml, r, sizeof(struct method_list64_t)); |
| 4500 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4501 | swapStruct(ml); |
| 4502 | outs() << indent << "\t\t entsize " << ml.entsize << "\n"; |
| 4503 | outs() << indent << "\t\t count " << ml.count << "\n"; |
| 4504 | |
| 4505 | p += sizeof(struct method_list64_t); |
| 4506 | offset += sizeof(struct method_list64_t); |
| 4507 | for (i = 0; i < ml.count; i++) { |
| 4508 | r = get_pointer_64(p, offset, left, S, info); |
| 4509 | if (r == nullptr) |
| 4510 | return; |
| 4511 | memset(&m, '\0', sizeof(struct method64_t)); |
| 4512 | if (left < sizeof(struct method64_t)) { |
| 4513 | memcpy(&m, r, left); |
| 4514 | outs() << indent << " (method_t extends past the end of the section)\n"; |
| 4515 | } else |
| 4516 | memcpy(&m, r, sizeof(struct method64_t)); |
| 4517 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4518 | swapStruct(m); |
| 4519 | |
| 4520 | outs() << indent << "\t\t name "; |
| 4521 | sym_name = get_symbol_64(offset + offsetof(struct method64_t, name)__builtin_offsetof(struct method64_t, name), S, |
| 4522 | info, n_value, m.name); |
| 4523 | if (n_value != 0) { |
| 4524 | if (info->verbose && sym_name != nullptr) |
| 4525 | outs() << sym_name; |
| 4526 | else |
| 4527 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4528 | if (m.name != 0) |
| 4529 | outs() << " + " << format("0x%" PRIx64"l" "x", m.name); |
| 4530 | } else |
| 4531 | outs() << format("0x%" PRIx64"l" "x", m.name); |
| 4532 | name = get_pointer_64(m.name + n_value, xoffset, left, xS, info); |
| 4533 | if (name != nullptr) |
| 4534 | outs() << format(" %.*s", left, name); |
| 4535 | outs() << "\n"; |
| 4536 | |
| 4537 | outs() << indent << "\t\t types "; |
| 4538 | sym_name = get_symbol_64(offset + offsetof(struct method64_t, types)__builtin_offsetof(struct method64_t, types), S, |
| 4539 | info, n_value, m.types); |
| 4540 | if (n_value != 0) { |
| 4541 | if (info->verbose && sym_name != nullptr) |
| 4542 | outs() << sym_name; |
| 4543 | else |
| 4544 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4545 | if (m.types != 0) |
| 4546 | outs() << " + " << format("0x%" PRIx64"l" "x", m.types); |
| 4547 | } else |
| 4548 | outs() << format("0x%" PRIx64"l" "x", m.types); |
| 4549 | name = get_pointer_64(m.types + n_value, xoffset, left, xS, info); |
| 4550 | if (name != nullptr) |
| 4551 | outs() << format(" %.*s", left, name); |
| 4552 | outs() << "\n"; |
| 4553 | |
| 4554 | outs() << indent << "\t\t imp "; |
| 4555 | name = get_symbol_64(offset + offsetof(struct method64_t, imp)__builtin_offsetof(struct method64_t, imp), S, info, |
| 4556 | n_value, m.imp); |
| 4557 | if (info->verbose && name == nullptr) { |
| 4558 | if (n_value != 0) { |
| 4559 | outs() << format("0x%" PRIx64"l" "x", n_value) << " "; |
| 4560 | if (m.imp != 0) |
| 4561 | outs() << "+ " << format("0x%" PRIx64"l" "x", m.imp) << " "; |
| 4562 | } else |
| 4563 | outs() << format("0x%" PRIx64"l" "x", m.imp) << " "; |
| 4564 | } |
| 4565 | if (name != nullptr) |
| 4566 | outs() << name; |
| 4567 | outs() << "\n"; |
| 4568 | |
| 4569 | p += sizeof(struct method64_t); |
| 4570 | offset += sizeof(struct method64_t); |
| 4571 | } |
| 4572 | } |
| 4573 | |
| 4574 | static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info, |
| 4575 | const char *indent) { |
| 4576 | struct method_list32_t ml; |
| 4577 | struct method32_t m; |
| 4578 | const char *r, *name; |
| 4579 | uint32_t offset, xoffset, left, i; |
| 4580 | SectionRef S, xS; |
| 4581 | |
| 4582 | r = get_pointer_32(p, offset, left, S, info); |
| 4583 | if (r == nullptr) |
| 4584 | return; |
| 4585 | memset(&ml, '\0', sizeof(struct method_list32_t)); |
| 4586 | if (left < sizeof(struct method_list32_t)) { |
| 4587 | memcpy(&ml, r, left); |
| 4588 | outs() << " (method_list_t entends past the end of the section)\n"; |
| 4589 | } else |
| 4590 | memcpy(&ml, r, sizeof(struct method_list32_t)); |
| 4591 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4592 | swapStruct(ml); |
| 4593 | outs() << indent << "\t\t entsize " << ml.entsize << "\n"; |
| 4594 | outs() << indent << "\t\t count " << ml.count << "\n"; |
| 4595 | |
| 4596 | p += sizeof(struct method_list32_t); |
| 4597 | offset += sizeof(struct method_list32_t); |
| 4598 | for (i = 0; i < ml.count; i++) { |
| 4599 | r = get_pointer_32(p, offset, left, S, info); |
| 4600 | if (r == nullptr) |
| 4601 | return; |
| 4602 | memset(&m, '\0', sizeof(struct method32_t)); |
| 4603 | if (left < sizeof(struct method32_t)) { |
| 4604 | memcpy(&ml, r, left); |
| 4605 | outs() << indent << " (method_t entends past the end of the section)\n"; |
| 4606 | } else |
| 4607 | memcpy(&m, r, sizeof(struct method32_t)); |
| 4608 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4609 | swapStruct(m); |
| 4610 | |
| 4611 | outs() << indent << "\t\t name " << format("0x%" PRIx32"x", m.name); |
| 4612 | name = get_pointer_32(m.name, xoffset, left, xS, info); |
| 4613 | if (name != nullptr) |
| 4614 | outs() << format(" %.*s", left, name); |
| 4615 | outs() << "\n"; |
| 4616 | |
| 4617 | outs() << indent << "\t\t types " << format("0x%" PRIx32"x", m.types); |
| 4618 | name = get_pointer_32(m.types, xoffset, left, xS, info); |
| 4619 | if (name != nullptr) |
| 4620 | outs() << format(" %.*s", left, name); |
| 4621 | outs() << "\n"; |
| 4622 | |
| 4623 | outs() << indent << "\t\t imp " << format("0x%" PRIx32"x", m.imp); |
| 4624 | name = get_symbol_32(offset + offsetof(struct method32_t, imp)__builtin_offsetof(struct method32_t, imp), S, info, |
| 4625 | m.imp); |
| 4626 | if (name != nullptr) |
| 4627 | outs() << " " << name; |
| 4628 | outs() << "\n"; |
| 4629 | |
| 4630 | p += sizeof(struct method32_t); |
| 4631 | offset += sizeof(struct method32_t); |
| 4632 | } |
| 4633 | } |
| 4634 | |
| 4635 | static bool print_method_list(uint32_t p, struct DisassembleInfo *info) { |
| 4636 | uint32_t offset, left, xleft; |
| 4637 | SectionRef S; |
| 4638 | struct objc_method_list_t method_list; |
| 4639 | struct objc_method_t method; |
| 4640 | const char *r, *methods, *name, *SymbolName; |
| 4641 | int32_t i; |
| 4642 | |
| 4643 | r = get_pointer_32(p, offset, left, S, info, true); |
| 4644 | if (r == nullptr) |
| 4645 | return true; |
| 4646 | |
| 4647 | outs() << "\n"; |
| 4648 | if (left > sizeof(struct objc_method_list_t)) { |
| 4649 | memcpy(&method_list, r, sizeof(struct objc_method_list_t)); |
| 4650 | } else { |
| 4651 | outs() << "\t\t objc_method_list extends past end of the section\n"; |
| 4652 | memset(&method_list, '\0', sizeof(struct objc_method_list_t)); |
| 4653 | memcpy(&method_list, r, left); |
| 4654 | } |
| 4655 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4656 | swapStruct(method_list); |
| 4657 | |
| 4658 | outs() << "\t\t obsolete " |
| 4659 | << format("0x%08" PRIx32"x", method_list.obsolete) << "\n"; |
| 4660 | outs() << "\t\t method_count " << method_list.method_count << "\n"; |
| 4661 | |
| 4662 | methods = r + sizeof(struct objc_method_list_t); |
| 4663 | for (i = 0; i < method_list.method_count; i++) { |
| 4664 | if ((i + 1) * sizeof(struct objc_method_t) > left) { |
| 4665 | outs() << "\t\t remaining method's extend past the of the section\n"; |
| 4666 | break; |
| 4667 | } |
| 4668 | memcpy(&method, methods + i * sizeof(struct objc_method_t), |
| 4669 | sizeof(struct objc_method_t)); |
| 4670 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4671 | swapStruct(method); |
| 4672 | |
| 4673 | outs() << "\t\t method_name " |
| 4674 | << format("0x%08" PRIx32"x", method.method_name); |
| 4675 | if (info->verbose) { |
| 4676 | name = get_pointer_32(method.method_name, offset, xleft, S, info, true); |
| 4677 | if (name != nullptr) |
| 4678 | outs() << format(" %.*s", xleft, name); |
| 4679 | else |
| 4680 | outs() << " (not in an __OBJC section)"; |
| 4681 | } |
| 4682 | outs() << "\n"; |
| 4683 | |
| 4684 | outs() << "\t\t method_types " |
| 4685 | << format("0x%08" PRIx32"x", method.method_types); |
| 4686 | if (info->verbose) { |
| 4687 | name = get_pointer_32(method.method_types, offset, xleft, S, info, true); |
| 4688 | if (name != nullptr) |
| 4689 | outs() << format(" %.*s", xleft, name); |
| 4690 | else |
| 4691 | outs() << " (not in an __OBJC section)"; |
| 4692 | } |
| 4693 | outs() << "\n"; |
| 4694 | |
| 4695 | outs() << "\t\t method_imp " |
| 4696 | << format("0x%08" PRIx32"x", method.method_imp) << " "; |
| 4697 | if (info->verbose) { |
| 4698 | SymbolName = GuessSymbolName(method.method_imp, info->AddrMap); |
| 4699 | if (SymbolName != nullptr) |
| 4700 | outs() << SymbolName; |
| 4701 | } |
| 4702 | outs() << "\n"; |
| 4703 | } |
| 4704 | return false; |
| 4705 | } |
| 4706 | |
| 4707 | static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) { |
| 4708 | struct protocol_list64_t pl; |
| 4709 | uint64_t q, n_value; |
| 4710 | struct protocol64_t pc; |
| 4711 | const char *r; |
| 4712 | uint32_t offset, xoffset, left, i; |
| 4713 | SectionRef S, xS; |
| 4714 | const char *name, *sym_name; |
| 4715 | |
| 4716 | r = get_pointer_64(p, offset, left, S, info); |
| 4717 | if (r == nullptr) |
| 4718 | return; |
| 4719 | memset(&pl, '\0', sizeof(struct protocol_list64_t)); |
| 4720 | if (left < sizeof(struct protocol_list64_t)) { |
| 4721 | memcpy(&pl, r, left); |
| 4722 | outs() << " (protocol_list_t entends past the end of the section)\n"; |
| 4723 | } else |
| 4724 | memcpy(&pl, r, sizeof(struct protocol_list64_t)); |
| 4725 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4726 | swapStruct(pl); |
| 4727 | outs() << " count " << pl.count << "\n"; |
| 4728 | |
| 4729 | p += sizeof(struct protocol_list64_t); |
| 4730 | offset += sizeof(struct protocol_list64_t); |
| 4731 | for (i = 0; i < pl.count; i++) { |
| 4732 | r = get_pointer_64(p, offset, left, S, info); |
| 4733 | if (r == nullptr) |
| 4734 | return; |
| 4735 | q = 0; |
| 4736 | if (left < sizeof(uint64_t)) { |
| 4737 | memcpy(&q, r, left); |
| 4738 | outs() << " (protocol_t * entends past the end of the section)\n"; |
| 4739 | } else |
| 4740 | memcpy(&q, r, sizeof(uint64_t)); |
| 4741 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4742 | sys::swapByteOrder(q); |
| 4743 | |
| 4744 | outs() << "\t\t list[" << i << "] "; |
| 4745 | sym_name = get_symbol_64(offset, S, info, n_value, q); |
| 4746 | if (n_value != 0) { |
| 4747 | if (info->verbose && sym_name != nullptr) |
| 4748 | outs() << sym_name; |
| 4749 | else |
| 4750 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4751 | if (q != 0) |
| 4752 | outs() << " + " << format("0x%" PRIx64"l" "x", q); |
| 4753 | } else |
| 4754 | outs() << format("0x%" PRIx64"l" "x", q); |
| 4755 | outs() << " (struct protocol_t *)\n"; |
| 4756 | |
| 4757 | r = get_pointer_64(q + n_value, offset, left, S, info); |
| 4758 | if (r == nullptr) |
| 4759 | return; |
| 4760 | memset(&pc, '\0', sizeof(struct protocol64_t)); |
| 4761 | if (left < sizeof(struct protocol64_t)) { |
| 4762 | memcpy(&pc, r, left); |
| 4763 | outs() << " (protocol_t entends past the end of the section)\n"; |
| 4764 | } else |
| 4765 | memcpy(&pc, r, sizeof(struct protocol64_t)); |
| 4766 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4767 | swapStruct(pc); |
| 4768 | |
| 4769 | outs() << "\t\t\t isa " << format("0x%" PRIx64"l" "x", pc.isa) << "\n"; |
| 4770 | |
| 4771 | outs() << "\t\t\t name "; |
| 4772 | sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name)__builtin_offsetof(struct protocol64_t, name), S, |
| 4773 | info, n_value, pc.name); |
| 4774 | if (n_value != 0) { |
| 4775 | if (info->verbose && sym_name != nullptr) |
| 4776 | outs() << sym_name; |
| 4777 | else |
| 4778 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4779 | if (pc.name != 0) |
| 4780 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.name); |
| 4781 | } else |
| 4782 | outs() << format("0x%" PRIx64"l" "x", pc.name); |
| 4783 | name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info); |
| 4784 | if (name != nullptr) |
| 4785 | outs() << format(" %.*s", left, name); |
| 4786 | outs() << "\n"; |
| 4787 | |
| 4788 | outs() << "\t\t\tprotocols " << format("0x%" PRIx64"l" "x", pc.protocols) << "\n"; |
| 4789 | |
| 4790 | outs() << "\t\t instanceMethods "; |
| 4791 | sym_name = |
| 4792 | get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods)__builtin_offsetof(struct protocol64_t, instanceMethods), |
| 4793 | S, info, n_value, pc.instanceMethods); |
| 4794 | if (n_value != 0) { |
| 4795 | if (info->verbose && sym_name != nullptr) |
| 4796 | outs() << sym_name; |
| 4797 | else |
| 4798 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4799 | if (pc.instanceMethods != 0) |
| 4800 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.instanceMethods); |
| 4801 | } else |
| 4802 | outs() << format("0x%" PRIx64"l" "x", pc.instanceMethods); |
| 4803 | outs() << " (struct method_list_t *)\n"; |
| 4804 | if (pc.instanceMethods + n_value != 0) |
| 4805 | print_method_list64_t(pc.instanceMethods + n_value, info, "\t"); |
| 4806 | |
| 4807 | outs() << "\t\t classMethods "; |
| 4808 | sym_name = |
| 4809 | get_symbol_64(offset + offsetof(struct protocol64_t, classMethods)__builtin_offsetof(struct protocol64_t, classMethods), S, |
| 4810 | info, n_value, pc.classMethods); |
| 4811 | if (n_value != 0) { |
| 4812 | if (info->verbose && sym_name != nullptr) |
| 4813 | outs() << sym_name; |
| 4814 | else |
| 4815 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 4816 | if (pc.classMethods != 0) |
| 4817 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.classMethods); |
| 4818 | } else |
| 4819 | outs() << format("0x%" PRIx64"l" "x", pc.classMethods); |
| 4820 | outs() << " (struct method_list_t *)\n"; |
| 4821 | if (pc.classMethods + n_value != 0) |
| 4822 | print_method_list64_t(pc.classMethods + n_value, info, "\t"); |
| 4823 | |
| 4824 | outs() << "\t optionalInstanceMethods " |
| 4825 | << format("0x%" PRIx64"l" "x", pc.optionalInstanceMethods) << "\n"; |
| 4826 | outs() << "\t optionalClassMethods " |
| 4827 | << format("0x%" PRIx64"l" "x", pc.optionalClassMethods) << "\n"; |
| 4828 | outs() << "\t instanceProperties " |
| 4829 | << format("0x%" PRIx64"l" "x", pc.instanceProperties) << "\n"; |
| 4830 | |
| 4831 | p += sizeof(uint64_t); |
| 4832 | offset += sizeof(uint64_t); |
| 4833 | } |
| 4834 | } |
| 4835 | |
| 4836 | static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) { |
| 4837 | struct protocol_list32_t pl; |
| 4838 | uint32_t q; |
| 4839 | struct protocol32_t pc; |
| 4840 | const char *r; |
| 4841 | uint32_t offset, xoffset, left, i; |
| 4842 | SectionRef S, xS; |
| 4843 | const char *name; |
| 4844 | |
| 4845 | r = get_pointer_32(p, offset, left, S, info); |
| 4846 | if (r == nullptr) |
| 4847 | return; |
| 4848 | memset(&pl, '\0', sizeof(struct protocol_list32_t)); |
| 4849 | if (left < sizeof(struct protocol_list32_t)) { |
| 4850 | memcpy(&pl, r, left); |
| 4851 | outs() << " (protocol_list_t entends past the end of the section)\n"; |
| 4852 | } else |
| 4853 | memcpy(&pl, r, sizeof(struct protocol_list32_t)); |
| 4854 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4855 | swapStruct(pl); |
| 4856 | outs() << " count " << pl.count << "\n"; |
| 4857 | |
| 4858 | p += sizeof(struct protocol_list32_t); |
| 4859 | offset += sizeof(struct protocol_list32_t); |
| 4860 | for (i = 0; i < pl.count; i++) { |
| 4861 | r = get_pointer_32(p, offset, left, S, info); |
| 4862 | if (r == nullptr) |
| 4863 | return; |
| 4864 | q = 0; |
| 4865 | if (left < sizeof(uint32_t)) { |
| 4866 | memcpy(&q, r, left); |
| 4867 | outs() << " (protocol_t * entends past the end of the section)\n"; |
| 4868 | } else |
| 4869 | memcpy(&q, r, sizeof(uint32_t)); |
| 4870 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4871 | sys::swapByteOrder(q); |
| 4872 | outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32"x", q) |
| 4873 | << " (struct protocol_t *)\n"; |
| 4874 | r = get_pointer_32(q, offset, left, S, info); |
| 4875 | if (r == nullptr) |
| 4876 | return; |
| 4877 | memset(&pc, '\0', sizeof(struct protocol32_t)); |
| 4878 | if (left < sizeof(struct protocol32_t)) { |
| 4879 | memcpy(&pc, r, left); |
| 4880 | outs() << " (protocol_t entends past the end of the section)\n"; |
| 4881 | } else |
| 4882 | memcpy(&pc, r, sizeof(struct protocol32_t)); |
| 4883 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4884 | swapStruct(pc); |
| 4885 | outs() << "\t\t\t isa " << format("0x%" PRIx32"x", pc.isa) << "\n"; |
| 4886 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", pc.name); |
| 4887 | name = get_pointer_32(pc.name, xoffset, left, xS, info); |
| 4888 | if (name != nullptr) |
| 4889 | outs() << format(" %.*s", left, name); |
| 4890 | outs() << "\n"; |
| 4891 | outs() << "\t\t\tprotocols " << format("0x%" PRIx32"x", pc.protocols) << "\n"; |
| 4892 | outs() << "\t\t instanceMethods " |
| 4893 | << format("0x%" PRIx32"x", pc.instanceMethods) |
| 4894 | << " (struct method_list_t *)\n"; |
| 4895 | if (pc.instanceMethods != 0) |
| 4896 | print_method_list32_t(pc.instanceMethods, info, "\t"); |
| 4897 | outs() << "\t\t classMethods " << format("0x%" PRIx32"x", pc.classMethods) |
| 4898 | << " (struct method_list_t *)\n"; |
| 4899 | if (pc.classMethods != 0) |
| 4900 | print_method_list32_t(pc.classMethods, info, "\t"); |
| 4901 | outs() << "\t optionalInstanceMethods " |
| 4902 | << format("0x%" PRIx32"x", pc.optionalInstanceMethods) << "\n"; |
| 4903 | outs() << "\t optionalClassMethods " |
| 4904 | << format("0x%" PRIx32"x", pc.optionalClassMethods) << "\n"; |
| 4905 | outs() << "\t instanceProperties " |
| 4906 | << format("0x%" PRIx32"x", pc.instanceProperties) << "\n"; |
| 4907 | p += sizeof(uint32_t); |
| 4908 | offset += sizeof(uint32_t); |
| 4909 | } |
| 4910 | } |
| 4911 | |
| 4912 | static void print_indent(uint32_t indent) { |
| 4913 | for (uint32_t i = 0; i < indent;) { |
| 4914 | if (indent - i >= 8) { |
| 4915 | outs() << "\t"; |
| 4916 | i += 8; |
| 4917 | } else { |
| 4918 | for (uint32_t j = i; j < indent; j++) |
| 4919 | outs() << " "; |
| 4920 | return; |
| 4921 | } |
| 4922 | } |
| 4923 | } |
| 4924 | |
| 4925 | static bool print_method_description_list(uint32_t p, uint32_t indent, |
| 4926 | struct DisassembleInfo *info) { |
| 4927 | uint32_t offset, left, xleft; |
| 4928 | SectionRef S; |
| 4929 | struct objc_method_description_list_t mdl; |
| 4930 | struct objc_method_description_t md; |
| 4931 | const char *r, *list, *name; |
| 4932 | int32_t i; |
| 4933 | |
| 4934 | r = get_pointer_32(p, offset, left, S, info, true); |
| 4935 | if (r == nullptr) |
| 4936 | return true; |
| 4937 | |
| 4938 | outs() << "\n"; |
| 4939 | if (left > sizeof(struct objc_method_description_list_t)) { |
| 4940 | memcpy(&mdl, r, sizeof(struct objc_method_description_list_t)); |
| 4941 | } else { |
| 4942 | print_indent(indent); |
| 4943 | outs() << " objc_method_description_list extends past end of the section\n"; |
| 4944 | memset(&mdl, '\0', sizeof(struct objc_method_description_list_t)); |
| 4945 | memcpy(&mdl, r, left); |
| 4946 | } |
| 4947 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4948 | swapStruct(mdl); |
| 4949 | |
| 4950 | print_indent(indent); |
| 4951 | outs() << " count " << mdl.count << "\n"; |
| 4952 | |
| 4953 | list = r + sizeof(struct objc_method_description_list_t); |
| 4954 | for (i = 0; i < mdl.count; i++) { |
| 4955 | if ((i + 1) * sizeof(struct objc_method_description_t) > left) { |
| 4956 | print_indent(indent); |
| 4957 | outs() << " remaining list entries extend past the of the section\n"; |
| 4958 | break; |
| 4959 | } |
| 4960 | print_indent(indent); |
| 4961 | outs() << " list[" << i << "]\n"; |
| 4962 | memcpy(&md, list + i * sizeof(struct objc_method_description_t), |
| 4963 | sizeof(struct objc_method_description_t)); |
| 4964 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 4965 | swapStruct(md); |
| 4966 | |
| 4967 | print_indent(indent); |
| 4968 | outs() << " name " << format("0x%08" PRIx32"x", md.name); |
| 4969 | if (info->verbose) { |
| 4970 | name = get_pointer_32(md.name, offset, xleft, S, info, true); |
| 4971 | if (name != nullptr) |
| 4972 | outs() << format(" %.*s", xleft, name); |
| 4973 | else |
| 4974 | outs() << " (not in an __OBJC section)"; |
| 4975 | } |
| 4976 | outs() << "\n"; |
| 4977 | |
| 4978 | print_indent(indent); |
| 4979 | outs() << " types " << format("0x%08" PRIx32"x", md.types); |
| 4980 | if (info->verbose) { |
| 4981 | name = get_pointer_32(md.types, offset, xleft, S, info, true); |
| 4982 | if (name != nullptr) |
| 4983 | outs() << format(" %.*s", xleft, name); |
| 4984 | else |
| 4985 | outs() << " (not in an __OBJC section)"; |
| 4986 | } |
| 4987 | outs() << "\n"; |
| 4988 | } |
| 4989 | return false; |
| 4990 | } |
| 4991 | |
| 4992 | static bool print_protocol_list(uint32_t p, uint32_t indent, |
| 4993 | struct DisassembleInfo *info); |
| 4994 | |
| 4995 | static bool print_protocol(uint32_t p, uint32_t indent, |
| 4996 | struct DisassembleInfo *info) { |
| 4997 | uint32_t offset, left; |
| 4998 | SectionRef S; |
| 4999 | struct objc_protocol_t protocol; |
| 5000 | const char *r, *name; |
| 5001 | |
| 5002 | r = get_pointer_32(p, offset, left, S, info, true); |
| 5003 | if (r == nullptr) |
| 5004 | return true; |
| 5005 | |
| 5006 | outs() << "\n"; |
| 5007 | if (left >= sizeof(struct objc_protocol_t)) { |
| 5008 | memcpy(&protocol, r, sizeof(struct objc_protocol_t)); |
| 5009 | } else { |
| 5010 | print_indent(indent); |
| 5011 | outs() << " Protocol extends past end of the section\n"; |
| 5012 | memset(&protocol, '\0', sizeof(struct objc_protocol_t)); |
| 5013 | memcpy(&protocol, r, left); |
| 5014 | } |
| 5015 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5016 | swapStruct(protocol); |
| 5017 | |
| 5018 | print_indent(indent); |
| 5019 | outs() << " isa " << format("0x%08" PRIx32"x", protocol.isa) |
| 5020 | << "\n"; |
| 5021 | |
| 5022 | print_indent(indent); |
| 5023 | outs() << " protocol_name " |
| 5024 | << format("0x%08" PRIx32"x", protocol.protocol_name); |
| 5025 | if (info->verbose) { |
| 5026 | name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true); |
| 5027 | if (name != nullptr) |
| 5028 | outs() << format(" %.*s", left, name); |
| 5029 | else |
| 5030 | outs() << " (not in an __OBJC section)"; |
| 5031 | } |
| 5032 | outs() << "\n"; |
| 5033 | |
| 5034 | print_indent(indent); |
| 5035 | outs() << " protocol_list " |
| 5036 | << format("0x%08" PRIx32"x", protocol.protocol_list); |
| 5037 | if (print_protocol_list(protocol.protocol_list, indent + 4, info)) |
| 5038 | outs() << " (not in an __OBJC section)\n"; |
| 5039 | |
| 5040 | print_indent(indent); |
| 5041 | outs() << " instance_methods " |
| 5042 | << format("0x%08" PRIx32"x", protocol.instance_methods); |
| 5043 | if (print_method_description_list(protocol.instance_methods, indent, info)) |
| 5044 | outs() << " (not in an __OBJC section)\n"; |
| 5045 | |
| 5046 | print_indent(indent); |
| 5047 | outs() << " class_methods " |
| 5048 | << format("0x%08" PRIx32"x", protocol.class_methods); |
| 5049 | if (print_method_description_list(protocol.class_methods, indent, info)) |
| 5050 | outs() << " (not in an __OBJC section)\n"; |
| 5051 | |
| 5052 | return false; |
| 5053 | } |
| 5054 | |
| 5055 | static bool print_protocol_list(uint32_t p, uint32_t indent, |
| 5056 | struct DisassembleInfo *info) { |
| 5057 | uint32_t offset, left, l; |
| 5058 | SectionRef S; |
| 5059 | struct objc_protocol_list_t protocol_list; |
| 5060 | const char *r, *list; |
| 5061 | int32_t i; |
| 5062 | |
| 5063 | r = get_pointer_32(p, offset, left, S, info, true); |
| 5064 | if (r == nullptr) |
| 5065 | return true; |
| 5066 | |
| 5067 | outs() << "\n"; |
| 5068 | if (left > sizeof(struct objc_protocol_list_t)) { |
| 5069 | memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t)); |
| 5070 | } else { |
| 5071 | outs() << "\t\t objc_protocol_list_t extends past end of the section\n"; |
| 5072 | memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t)); |
| 5073 | memcpy(&protocol_list, r, left); |
| 5074 | } |
| 5075 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5076 | swapStruct(protocol_list); |
| 5077 | |
| 5078 | print_indent(indent); |
| 5079 | outs() << " next " << format("0x%08" PRIx32"x", protocol_list.next) |
| 5080 | << "\n"; |
| 5081 | print_indent(indent); |
| 5082 | outs() << " count " << protocol_list.count << "\n"; |
| 5083 | |
| 5084 | list = r + sizeof(struct objc_protocol_list_t); |
| 5085 | for (i = 0; i < protocol_list.count; i++) { |
| 5086 | if ((i + 1) * sizeof(uint32_t) > left) { |
| 5087 | outs() << "\t\t remaining list entries extend past the of the section\n"; |
| 5088 | break; |
| 5089 | } |
| 5090 | memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t)); |
| 5091 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5092 | sys::swapByteOrder(l); |
| 5093 | |
| 5094 | print_indent(indent); |
| 5095 | outs() << " list[" << i << "] " << format("0x%08" PRIx32"x", l); |
| 5096 | if (print_protocol(l, indent, info)) |
| 5097 | outs() << "(not in an __OBJC section)\n"; |
| 5098 | } |
| 5099 | return false; |
| 5100 | } |
| 5101 | |
| 5102 | static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) { |
| 5103 | struct ivar_list64_t il; |
| 5104 | struct ivar64_t i; |
| 5105 | const char *r; |
| 5106 | uint32_t offset, xoffset, left, j; |
| 5107 | SectionRef S, xS; |
| 5108 | const char *name, *sym_name, *ivar_offset_p; |
| 5109 | uint64_t ivar_offset, n_value; |
| 5110 | |
| 5111 | r = get_pointer_64(p, offset, left, S, info); |
| 5112 | if (r == nullptr) |
| 5113 | return; |
| 5114 | memset(&il, '\0', sizeof(struct ivar_list64_t)); |
| 5115 | if (left < sizeof(struct ivar_list64_t)) { |
| 5116 | memcpy(&il, r, left); |
| 5117 | outs() << " (ivar_list_t entends past the end of the section)\n"; |
| 5118 | } else |
| 5119 | memcpy(&il, r, sizeof(struct ivar_list64_t)); |
| 5120 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5121 | swapStruct(il); |
| 5122 | outs() << " entsize " << il.entsize << "\n"; |
| 5123 | outs() << " count " << il.count << "\n"; |
| 5124 | |
| 5125 | p += sizeof(struct ivar_list64_t); |
| 5126 | offset += sizeof(struct ivar_list64_t); |
| 5127 | for (j = 0; j < il.count; j++) { |
| 5128 | r = get_pointer_64(p, offset, left, S, info); |
| 5129 | if (r == nullptr) |
| 5130 | return; |
| 5131 | memset(&i, '\0', sizeof(struct ivar64_t)); |
| 5132 | if (left < sizeof(struct ivar64_t)) { |
| 5133 | memcpy(&i, r, left); |
| 5134 | outs() << " (ivar_t entends past the end of the section)\n"; |
| 5135 | } else |
| 5136 | memcpy(&i, r, sizeof(struct ivar64_t)); |
| 5137 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5138 | swapStruct(i); |
| 5139 | |
| 5140 | outs() << "\t\t\t offset "; |
| 5141 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset)__builtin_offsetof(struct ivar64_t, offset), S, |
| 5142 | info, n_value, i.offset); |
| 5143 | if (n_value != 0) { |
| 5144 | if (info->verbose && sym_name != nullptr) |
| 5145 | outs() << sym_name; |
| 5146 | else |
| 5147 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5148 | if (i.offset != 0) |
| 5149 | outs() << " + " << format("0x%" PRIx64"l" "x", i.offset); |
| 5150 | } else |
| 5151 | outs() << format("0x%" PRIx64"l" "x", i.offset); |
| 5152 | ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info); |
| 5153 | if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { |
| 5154 | memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); |
| 5155 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5156 | sys::swapByteOrder(ivar_offset); |
| 5157 | outs() << " " << ivar_offset << "\n"; |
| 5158 | } else |
| 5159 | outs() << "\n"; |
| 5160 | |
| 5161 | outs() << "\t\t\t name "; |
| 5162 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name)__builtin_offsetof(struct ivar64_t, name), S, info, |
| 5163 | n_value, i.name); |
| 5164 | if (n_value != 0) { |
| 5165 | if (info->verbose && sym_name != nullptr) |
| 5166 | outs() << sym_name; |
| 5167 | else |
| 5168 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5169 | if (i.name != 0) |
| 5170 | outs() << " + " << format("0x%" PRIx64"l" "x", i.name); |
| 5171 | } else |
| 5172 | outs() << format("0x%" PRIx64"l" "x", i.name); |
| 5173 | name = get_pointer_64(i.name + n_value, xoffset, left, xS, info); |
| 5174 | if (name != nullptr) |
| 5175 | outs() << format(" %.*s", left, name); |
| 5176 | outs() << "\n"; |
| 5177 | |
| 5178 | outs() << "\t\t\t type "; |
| 5179 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type)__builtin_offsetof(struct ivar64_t, type), S, info, |
| 5180 | n_value, i.name); |
| 5181 | name = get_pointer_64(i.type + n_value, xoffset, left, xS, info); |
| 5182 | if (n_value != 0) { |
| 5183 | if (info->verbose && sym_name != nullptr) |
| 5184 | outs() << sym_name; |
| 5185 | else |
| 5186 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5187 | if (i.type != 0) |
| 5188 | outs() << " + " << format("0x%" PRIx64"l" "x", i.type); |
| 5189 | } else |
| 5190 | outs() << format("0x%" PRIx64"l" "x", i.type); |
| 5191 | if (name != nullptr) |
| 5192 | outs() << format(" %.*s", left, name); |
| 5193 | outs() << "\n"; |
| 5194 | |
| 5195 | outs() << "\t\t\talignment " << i.alignment << "\n"; |
| 5196 | outs() << "\t\t\t size " << i.size << "\n"; |
| 5197 | |
| 5198 | p += sizeof(struct ivar64_t); |
| 5199 | offset += sizeof(struct ivar64_t); |
| 5200 | } |
| 5201 | } |
| 5202 | |
| 5203 | static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) { |
| 5204 | struct ivar_list32_t il; |
| 5205 | struct ivar32_t i; |
| 5206 | const char *r; |
| 5207 | uint32_t offset, xoffset, left, j; |
| 5208 | SectionRef S, xS; |
| 5209 | const char *name, *ivar_offset_p; |
| 5210 | uint32_t ivar_offset; |
| 5211 | |
| 5212 | r = get_pointer_32(p, offset, left, S, info); |
| 5213 | if (r == nullptr) |
| 5214 | return; |
| 5215 | memset(&il, '\0', sizeof(struct ivar_list32_t)); |
| 5216 | if (left < sizeof(struct ivar_list32_t)) { |
| 5217 | memcpy(&il, r, left); |
| 5218 | outs() << " (ivar_list_t entends past the end of the section)\n"; |
| 5219 | } else |
| 5220 | memcpy(&il, r, sizeof(struct ivar_list32_t)); |
| 5221 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5222 | swapStruct(il); |
| 5223 | outs() << " entsize " << il.entsize << "\n"; |
| 5224 | outs() << " count " << il.count << "\n"; |
| 5225 | |
| 5226 | p += sizeof(struct ivar_list32_t); |
| 5227 | offset += sizeof(struct ivar_list32_t); |
| 5228 | for (j = 0; j < il.count; j++) { |
| 5229 | r = get_pointer_32(p, offset, left, S, info); |
| 5230 | if (r == nullptr) |
| 5231 | return; |
| 5232 | memset(&i, '\0', sizeof(struct ivar32_t)); |
| 5233 | if (left < sizeof(struct ivar32_t)) { |
| 5234 | memcpy(&i, r, left); |
| 5235 | outs() << " (ivar_t entends past the end of the section)\n"; |
| 5236 | } else |
| 5237 | memcpy(&i, r, sizeof(struct ivar32_t)); |
| 5238 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5239 | swapStruct(i); |
| 5240 | |
| 5241 | outs() << "\t\t\t offset " << format("0x%" PRIx32"x", i.offset); |
| 5242 | ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info); |
| 5243 | if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { |
| 5244 | memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); |
| 5245 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5246 | sys::swapByteOrder(ivar_offset); |
| 5247 | outs() << " " << ivar_offset << "\n"; |
| 5248 | } else |
| 5249 | outs() << "\n"; |
| 5250 | |
| 5251 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", i.name); |
| 5252 | name = get_pointer_32(i.name, xoffset, left, xS, info); |
| 5253 | if (name != nullptr) |
| 5254 | outs() << format(" %.*s", left, name); |
| 5255 | outs() << "\n"; |
| 5256 | |
| 5257 | outs() << "\t\t\t type " << format("0x%" PRIx32"x", i.type); |
| 5258 | name = get_pointer_32(i.type, xoffset, left, xS, info); |
| 5259 | if (name != nullptr) |
| 5260 | outs() << format(" %.*s", left, name); |
| 5261 | outs() << "\n"; |
| 5262 | |
| 5263 | outs() << "\t\t\talignment " << i.alignment << "\n"; |
| 5264 | outs() << "\t\t\t size " << i.size << "\n"; |
| 5265 | |
| 5266 | p += sizeof(struct ivar32_t); |
| 5267 | offset += sizeof(struct ivar32_t); |
| 5268 | } |
| 5269 | } |
| 5270 | |
| 5271 | static void print_objc_property_list64(uint64_t p, |
| 5272 | struct DisassembleInfo *info) { |
| 5273 | struct objc_property_list64 opl; |
| 5274 | struct objc_property64 op; |
| 5275 | const char *r; |
| 5276 | uint32_t offset, xoffset, left, j; |
| 5277 | SectionRef S, xS; |
| 5278 | const char *name, *sym_name; |
| 5279 | uint64_t n_value; |
| 5280 | |
| 5281 | r = get_pointer_64(p, offset, left, S, info); |
| 5282 | if (r == nullptr) |
| 5283 | return; |
| 5284 | memset(&opl, '\0', sizeof(struct objc_property_list64)); |
| 5285 | if (left < sizeof(struct objc_property_list64)) { |
| 5286 | memcpy(&opl, r, left); |
| 5287 | outs() << " (objc_property_list entends past the end of the section)\n"; |
| 5288 | } else |
| 5289 | memcpy(&opl, r, sizeof(struct objc_property_list64)); |
| 5290 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5291 | swapStruct(opl); |
| 5292 | outs() << " entsize " << opl.entsize << "\n"; |
| 5293 | outs() << " count " << opl.count << "\n"; |
| 5294 | |
| 5295 | p += sizeof(struct objc_property_list64); |
| 5296 | offset += sizeof(struct objc_property_list64); |
| 5297 | for (j = 0; j < opl.count; j++) { |
| 5298 | r = get_pointer_64(p, offset, left, S, info); |
| 5299 | if (r == nullptr) |
| 5300 | return; |
| 5301 | memset(&op, '\0', sizeof(struct objc_property64)); |
| 5302 | if (left < sizeof(struct objc_property64)) { |
| 5303 | memcpy(&op, r, left); |
| 5304 | outs() << " (objc_property entends past the end of the section)\n"; |
| 5305 | } else |
| 5306 | memcpy(&op, r, sizeof(struct objc_property64)); |
| 5307 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5308 | swapStruct(op); |
| 5309 | |
| 5310 | outs() << "\t\t\t name "; |
| 5311 | sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name)__builtin_offsetof(struct objc_property64, name), S, |
| 5312 | info, n_value, op.name); |
| 5313 | if (n_value != 0) { |
| 5314 | if (info->verbose && sym_name != nullptr) |
| 5315 | outs() << sym_name; |
| 5316 | else |
| 5317 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5318 | if (op.name != 0) |
| 5319 | outs() << " + " << format("0x%" PRIx64"l" "x", op.name); |
| 5320 | } else |
| 5321 | outs() << format("0x%" PRIx64"l" "x", op.name); |
| 5322 | name = get_pointer_64(op.name + n_value, xoffset, left, xS, info); |
| 5323 | if (name != nullptr) |
| 5324 | outs() << format(" %.*s", left, name); |
| 5325 | outs() << "\n"; |
| 5326 | |
| 5327 | outs() << "\t\t\tattributes "; |
| 5328 | sym_name = |
| 5329 | get_symbol_64(offset + offsetof(struct objc_property64, attributes)__builtin_offsetof(struct objc_property64, attributes), S, |
| 5330 | info, n_value, op.attributes); |
| 5331 | if (n_value != 0) { |
| 5332 | if (info->verbose && sym_name != nullptr) |
| 5333 | outs() << sym_name; |
| 5334 | else |
| 5335 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5336 | if (op.attributes != 0) |
| 5337 | outs() << " + " << format("0x%" PRIx64"l" "x", op.attributes); |
| 5338 | } else |
| 5339 | outs() << format("0x%" PRIx64"l" "x", op.attributes); |
| 5340 | name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info); |
| 5341 | if (name != nullptr) |
| 5342 | outs() << format(" %.*s", left, name); |
| 5343 | outs() << "\n"; |
| 5344 | |
| 5345 | p += sizeof(struct objc_property64); |
| 5346 | offset += sizeof(struct objc_property64); |
| 5347 | } |
| 5348 | } |
| 5349 | |
| 5350 | static void print_objc_property_list32(uint32_t p, |
| 5351 | struct DisassembleInfo *info) { |
| 5352 | struct objc_property_list32 opl; |
| 5353 | struct objc_property32 op; |
| 5354 | const char *r; |
| 5355 | uint32_t offset, xoffset, left, j; |
| 5356 | SectionRef S, xS; |
| 5357 | const char *name; |
| 5358 | |
| 5359 | r = get_pointer_32(p, offset, left, S, info); |
| 5360 | if (r == nullptr) |
| 5361 | return; |
| 5362 | memset(&opl, '\0', sizeof(struct objc_property_list32)); |
| 5363 | if (left < sizeof(struct objc_property_list32)) { |
| 5364 | memcpy(&opl, r, left); |
| 5365 | outs() << " (objc_property_list entends past the end of the section)\n"; |
| 5366 | } else |
| 5367 | memcpy(&opl, r, sizeof(struct objc_property_list32)); |
| 5368 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5369 | swapStruct(opl); |
| 5370 | outs() << " entsize " << opl.entsize << "\n"; |
| 5371 | outs() << " count " << opl.count << "\n"; |
| 5372 | |
| 5373 | p += sizeof(struct objc_property_list32); |
| 5374 | offset += sizeof(struct objc_property_list32); |
| 5375 | for (j = 0; j < opl.count; j++) { |
| 5376 | r = get_pointer_32(p, offset, left, S, info); |
| 5377 | if (r == nullptr) |
| 5378 | return; |
| 5379 | memset(&op, '\0', sizeof(struct objc_property32)); |
| 5380 | if (left < sizeof(struct objc_property32)) { |
| 5381 | memcpy(&op, r, left); |
| 5382 | outs() << " (objc_property entends past the end of the section)\n"; |
| 5383 | } else |
| 5384 | memcpy(&op, r, sizeof(struct objc_property32)); |
| 5385 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5386 | swapStruct(op); |
| 5387 | |
| 5388 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", op.name); |
| 5389 | name = get_pointer_32(op.name, xoffset, left, xS, info); |
| 5390 | if (name != nullptr) |
| 5391 | outs() << format(" %.*s", left, name); |
| 5392 | outs() << "\n"; |
| 5393 | |
| 5394 | outs() << "\t\t\tattributes " << format("0x%" PRIx32"x", op.attributes); |
| 5395 | name = get_pointer_32(op.attributes, xoffset, left, xS, info); |
| 5396 | if (name != nullptr) |
| 5397 | outs() << format(" %.*s", left, name); |
| 5398 | outs() << "\n"; |
| 5399 | |
| 5400 | p += sizeof(struct objc_property32); |
| 5401 | offset += sizeof(struct objc_property32); |
| 5402 | } |
| 5403 | } |
| 5404 | |
| 5405 | static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info, |
| 5406 | bool &is_meta_class) { |
| 5407 | struct class_ro64_t cro; |
| 5408 | const char *r; |
| 5409 | uint32_t offset, xoffset, left; |
| 5410 | SectionRef S, xS; |
| 5411 | const char *name, *sym_name; |
| 5412 | uint64_t n_value; |
| 5413 | |
| 5414 | r = get_pointer_64(p, offset, left, S, info); |
| 5415 | if (r == nullptr || left < sizeof(struct class_ro64_t)) |
| 5416 | return false; |
| 5417 | memcpy(&cro, r, sizeof(struct class_ro64_t)); |
| 5418 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5419 | swapStruct(cro); |
| 5420 | outs() << " flags " << format("0x%" PRIx32"x", cro.flags); |
| 5421 | if (cro.flags & RO_META(1 << 0)) |
| 5422 | outs() << " RO_META"; |
| 5423 | if (cro.flags & RO_ROOT(1 << 1)) |
| 5424 | outs() << " RO_ROOT"; |
| 5425 | if (cro.flags & RO_HAS_CXX_STRUCTORS(1 << 2)) |
| 5426 | outs() << " RO_HAS_CXX_STRUCTORS"; |
| 5427 | outs() << "\n"; |
| 5428 | outs() << " instanceStart " << cro.instanceStart << "\n"; |
| 5429 | outs() << " instanceSize " << cro.instanceSize << "\n"; |
| 5430 | outs() << " reserved " << format("0x%" PRIx32"x", cro.reserved) |
| 5431 | << "\n"; |
| 5432 | outs() << " ivarLayout " << format("0x%" PRIx64"l" "x", cro.ivarLayout) |
| 5433 | << "\n"; |
| 5434 | print_layout_map64(cro.ivarLayout, info); |
| 5435 | |
| 5436 | outs() << " name "; |
| 5437 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name)__builtin_offsetof(struct class_ro64_t, name), S, |
| 5438 | info, n_value, cro.name); |
| 5439 | if (n_value != 0) { |
| 5440 | if (info->verbose && sym_name != nullptr) |
| 5441 | outs() << sym_name; |
| 5442 | else |
| 5443 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5444 | if (cro.name != 0) |
| 5445 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.name); |
| 5446 | } else |
| 5447 | outs() << format("0x%" PRIx64"l" "x", cro.name); |
| 5448 | name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info); |
| 5449 | if (name != nullptr) |
| 5450 | outs() << format(" %.*s", left, name); |
| 5451 | outs() << "\n"; |
| 5452 | |
| 5453 | outs() << " baseMethods "; |
| 5454 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods)__builtin_offsetof(struct class_ro64_t, baseMethods), |
| 5455 | S, info, n_value, cro.baseMethods); |
| 5456 | if (n_value != 0) { |
| 5457 | if (info->verbose && sym_name != nullptr) |
| 5458 | outs() << sym_name; |
| 5459 | else |
| 5460 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5461 | if (cro.baseMethods != 0) |
| 5462 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseMethods); |
| 5463 | } else |
| 5464 | outs() << format("0x%" PRIx64"l" "x", cro.baseMethods); |
| 5465 | outs() << " (struct method_list_t *)\n"; |
| 5466 | if (cro.baseMethods + n_value != 0) |
| 5467 | print_method_list64_t(cro.baseMethods + n_value, info, ""); |
| 5468 | |
| 5469 | outs() << " baseProtocols "; |
| 5470 | sym_name = |
| 5471 | get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols)__builtin_offsetof(struct class_ro64_t, baseProtocols), S, |
| 5472 | info, n_value, cro.baseProtocols); |
| 5473 | if (n_value != 0) { |
| 5474 | if (info->verbose && sym_name != nullptr) |
| 5475 | outs() << sym_name; |
| 5476 | else |
| 5477 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5478 | if (cro.baseProtocols != 0) |
| 5479 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseProtocols); |
| 5480 | } else |
| 5481 | outs() << format("0x%" PRIx64"l" "x", cro.baseProtocols); |
| 5482 | outs() << "\n"; |
| 5483 | if (cro.baseProtocols + n_value != 0) |
| 5484 | print_protocol_list64_t(cro.baseProtocols + n_value, info); |
| 5485 | |
| 5486 | outs() << " ivars "; |
| 5487 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars)__builtin_offsetof(struct class_ro64_t, ivars), S, |
| 5488 | info, n_value, cro.ivars); |
| 5489 | if (n_value != 0) { |
| 5490 | if (info->verbose && sym_name != nullptr) |
| 5491 | outs() << sym_name; |
| 5492 | else |
| 5493 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5494 | if (cro.ivars != 0) |
| 5495 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.ivars); |
| 5496 | } else |
| 5497 | outs() << format("0x%" PRIx64"l" "x", cro.ivars); |
| 5498 | outs() << "\n"; |
| 5499 | if (cro.ivars + n_value != 0) |
| 5500 | print_ivar_list64_t(cro.ivars + n_value, info); |
| 5501 | |
| 5502 | outs() << " weakIvarLayout "; |
| 5503 | sym_name = |
| 5504 | get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout)__builtin_offsetof(struct class_ro64_t, weakIvarLayout), S, |
| 5505 | info, n_value, cro.weakIvarLayout); |
| 5506 | if (n_value != 0) { |
| 5507 | if (info->verbose && sym_name != nullptr) |
| 5508 | outs() << sym_name; |
| 5509 | else |
| 5510 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5511 | if (cro.weakIvarLayout != 0) |
| 5512 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.weakIvarLayout); |
| 5513 | } else |
| 5514 | outs() << format("0x%" PRIx64"l" "x", cro.weakIvarLayout); |
| 5515 | outs() << "\n"; |
| 5516 | print_layout_map64(cro.weakIvarLayout + n_value, info); |
| 5517 | |
| 5518 | outs() << " baseProperties "; |
| 5519 | sym_name = |
| 5520 | get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties)__builtin_offsetof(struct class_ro64_t, baseProperties), S, |
| 5521 | info, n_value, cro.baseProperties); |
| 5522 | if (n_value != 0) { |
| 5523 | if (info->verbose && sym_name != nullptr) |
| 5524 | outs() << sym_name; |
| 5525 | else |
| 5526 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5527 | if (cro.baseProperties != 0) |
| 5528 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseProperties); |
| 5529 | } else |
| 5530 | outs() << format("0x%" PRIx64"l" "x", cro.baseProperties); |
| 5531 | outs() << "\n"; |
| 5532 | if (cro.baseProperties + n_value != 0) |
| 5533 | print_objc_property_list64(cro.baseProperties + n_value, info); |
| 5534 | |
| 5535 | is_meta_class = (cro.flags & RO_META(1 << 0)) != 0; |
| 5536 | return true; |
| 5537 | } |
| 5538 | |
| 5539 | static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info, |
| 5540 | bool &is_meta_class) { |
| 5541 | struct class_ro32_t cro; |
| 5542 | const char *r; |
| 5543 | uint32_t offset, xoffset, left; |
| 5544 | SectionRef S, xS; |
| 5545 | const char *name; |
| 5546 | |
| 5547 | r = get_pointer_32(p, offset, left, S, info); |
| 5548 | if (r == nullptr) |
| 5549 | return false; |
| 5550 | memset(&cro, '\0', sizeof(struct class_ro32_t)); |
| 5551 | if (left < sizeof(struct class_ro32_t)) { |
| 5552 | memcpy(&cro, r, left); |
| 5553 | outs() << " (class_ro_t entends past the end of the section)\n"; |
| 5554 | } else |
| 5555 | memcpy(&cro, r, sizeof(struct class_ro32_t)); |
| 5556 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5557 | swapStruct(cro); |
| 5558 | outs() << " flags " << format("0x%" PRIx32"x", cro.flags); |
| 5559 | if (cro.flags & RO_META(1 << 0)) |
| 5560 | outs() << " RO_META"; |
| 5561 | if (cro.flags & RO_ROOT(1 << 1)) |
| 5562 | outs() << " RO_ROOT"; |
| 5563 | if (cro.flags & RO_HAS_CXX_STRUCTORS(1 << 2)) |
| 5564 | outs() << " RO_HAS_CXX_STRUCTORS"; |
| 5565 | outs() << "\n"; |
| 5566 | outs() << " instanceStart " << cro.instanceStart << "\n"; |
| 5567 | outs() << " instanceSize " << cro.instanceSize << "\n"; |
| 5568 | outs() << " ivarLayout " << format("0x%" PRIx32"x", cro.ivarLayout) |
| 5569 | << "\n"; |
| 5570 | print_layout_map32(cro.ivarLayout, info); |
| 5571 | |
| 5572 | outs() << " name " << format("0x%" PRIx32"x", cro.name); |
| 5573 | name = get_pointer_32(cro.name, xoffset, left, xS, info); |
| 5574 | if (name != nullptr) |
| 5575 | outs() << format(" %.*s", left, name); |
| 5576 | outs() << "\n"; |
| 5577 | |
| 5578 | outs() << " baseMethods " |
| 5579 | << format("0x%" PRIx32"x", cro.baseMethods) |
| 5580 | << " (struct method_list_t *)\n"; |
| 5581 | if (cro.baseMethods != 0) |
| 5582 | print_method_list32_t(cro.baseMethods, info, ""); |
| 5583 | |
| 5584 | outs() << " baseProtocols " |
| 5585 | << format("0x%" PRIx32"x", cro.baseProtocols) << "\n"; |
| 5586 | if (cro.baseProtocols != 0) |
| 5587 | print_protocol_list32_t(cro.baseProtocols, info); |
| 5588 | outs() << " ivars " << format("0x%" PRIx32"x", cro.ivars) |
| 5589 | << "\n"; |
| 5590 | if (cro.ivars != 0) |
| 5591 | print_ivar_list32_t(cro.ivars, info); |
| 5592 | outs() << " weakIvarLayout " |
| 5593 | << format("0x%" PRIx32"x", cro.weakIvarLayout) << "\n"; |
| 5594 | print_layout_map32(cro.weakIvarLayout, info); |
| 5595 | outs() << " baseProperties " |
| 5596 | << format("0x%" PRIx32"x", cro.baseProperties) << "\n"; |
| 5597 | if (cro.baseProperties != 0) |
| 5598 | print_objc_property_list32(cro.baseProperties, info); |
| 5599 | is_meta_class = (cro.flags & RO_META(1 << 0)) != 0; |
| 5600 | return true; |
| 5601 | } |
| 5602 | |
| 5603 | static void print_class64_t(uint64_t p, struct DisassembleInfo *info) { |
| 5604 | struct class64_t c; |
| 5605 | const char *r; |
| 5606 | uint32_t offset, left; |
| 5607 | SectionRef S; |
| 5608 | const char *name; |
| 5609 | uint64_t isa_n_value, n_value; |
| 5610 | |
| 5611 | r = get_pointer_64(p, offset, left, S, info); |
| 5612 | if (r == nullptr || left < sizeof(struct class64_t)) |
| 5613 | return; |
| 5614 | memcpy(&c, r, sizeof(struct class64_t)); |
| 5615 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5616 | swapStruct(c); |
| 5617 | |
| 5618 | outs() << " isa " << format("0x%" PRIx64"l" "x", c.isa); |
| 5619 | name = get_symbol_64(offset + offsetof(struct class64_t, isa)__builtin_offsetof(struct class64_t, isa), S, info, |
| 5620 | isa_n_value, c.isa); |
| 5621 | if (name != nullptr) |
| 5622 | outs() << " " << name; |
| 5623 | outs() << "\n"; |
| 5624 | |
| 5625 | outs() << " superclass " << format("0x%" PRIx64"l" "x", c.superclass); |
| 5626 | name = get_symbol_64(offset + offsetof(struct class64_t, superclass)__builtin_offsetof(struct class64_t, superclass), S, info, |
| 5627 | n_value, c.superclass); |
| 5628 | if (name != nullptr) |
| 5629 | outs() << " " << name; |
| 5630 | else { |
| 5631 | name = get_dyld_bind_info_symbolname(S.getAddress() + |
| 5632 | offset + offsetof(struct class64_t, superclass)__builtin_offsetof(struct class64_t, superclass), info); |
| 5633 | if (name != nullptr) |
| 5634 | outs() << " " << name; |
| 5635 | } |
| 5636 | outs() << "\n"; |
| 5637 | |
| 5638 | outs() << " cache " << format("0x%" PRIx64"l" "x", c.cache); |
| 5639 | name = get_symbol_64(offset + offsetof(struct class64_t, cache)__builtin_offsetof(struct class64_t, cache), S, info, |
| 5640 | n_value, c.cache); |
| 5641 | if (name != nullptr) |
| 5642 | outs() << " " << name; |
| 5643 | outs() << "\n"; |
| 5644 | |
| 5645 | outs() << " vtable " << format("0x%" PRIx64"l" "x", c.vtable); |
| 5646 | name = get_symbol_64(offset + offsetof(struct class64_t, vtable)__builtin_offsetof(struct class64_t, vtable), S, info, |
| 5647 | n_value, c.vtable); |
| 5648 | if (name != nullptr) |
| 5649 | outs() << " " << name; |
| 5650 | outs() << "\n"; |
| 5651 | |
| 5652 | name = get_symbol_64(offset + offsetof(struct class64_t, data)__builtin_offsetof(struct class64_t, data), S, info, |
| 5653 | n_value, c.data); |
| 5654 | outs() << " data "; |
| 5655 | if (n_value != 0) { |
| 5656 | if (info->verbose && name != nullptr) |
| 5657 | outs() << name; |
| 5658 | else |
| 5659 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5660 | if (c.data != 0) |
| 5661 | outs() << " + " << format("0x%" PRIx64"l" "x", c.data); |
| 5662 | } else |
| 5663 | outs() << format("0x%" PRIx64"l" "x", c.data); |
| 5664 | outs() << " (struct class_ro_t *)"; |
| 5665 | |
| 5666 | // This is a Swift class if some of the low bits of the pointer are set. |
| 5667 | if ((c.data + n_value) & 0x7) |
| 5668 | outs() << " Swift class"; |
| 5669 | outs() << "\n"; |
| 5670 | bool is_meta_class; |
| 5671 | if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class)) |
| 5672 | return; |
| 5673 | |
| 5674 | if (!is_meta_class && |
| 5675 | c.isa + isa_n_value != p && |
| 5676 | c.isa + isa_n_value != 0 && |
| 5677 | info->depth < 100) { |
| 5678 | info->depth++; |
| 5679 | outs() << "Meta Class\n"; |
| 5680 | print_class64_t(c.isa + isa_n_value, info); |
| 5681 | } |
| 5682 | } |
| 5683 | |
| 5684 | static void print_class32_t(uint32_t p, struct DisassembleInfo *info) { |
| 5685 | struct class32_t c; |
| 5686 | const char *r; |
| 5687 | uint32_t offset, left; |
| 5688 | SectionRef S; |
| 5689 | const char *name; |
| 5690 | |
| 5691 | r = get_pointer_32(p, offset, left, S, info); |
| 5692 | if (r == nullptr) |
| 5693 | return; |
| 5694 | memset(&c, '\0', sizeof(struct class32_t)); |
| 5695 | if (left < sizeof(struct class32_t)) { |
| 5696 | memcpy(&c, r, left); |
| 5697 | outs() << " (class_t entends past the end of the section)\n"; |
| 5698 | } else |
| 5699 | memcpy(&c, r, sizeof(struct class32_t)); |
| 5700 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5701 | swapStruct(c); |
| 5702 | |
| 5703 | outs() << " isa " << format("0x%" PRIx32"x", c.isa); |
| 5704 | name = |
| 5705 | get_symbol_32(offset + offsetof(struct class32_t, isa)__builtin_offsetof(struct class32_t, isa), S, info, c.isa); |
| 5706 | if (name != nullptr) |
| 5707 | outs() << " " << name; |
| 5708 | outs() << "\n"; |
| 5709 | |
| 5710 | outs() << " superclass " << format("0x%" PRIx32"x", c.superclass); |
| 5711 | name = get_symbol_32(offset + offsetof(struct class32_t, superclass)__builtin_offsetof(struct class32_t, superclass), S, info, |
| 5712 | c.superclass); |
| 5713 | if (name != nullptr) |
| 5714 | outs() << " " << name; |
| 5715 | outs() << "\n"; |
| 5716 | |
| 5717 | outs() << " cache " << format("0x%" PRIx32"x", c.cache); |
| 5718 | name = get_symbol_32(offset + offsetof(struct class32_t, cache)__builtin_offsetof(struct class32_t, cache), S, info, |
| 5719 | c.cache); |
| 5720 | if (name != nullptr) |
| 5721 | outs() << " " << name; |
| 5722 | outs() << "\n"; |
| 5723 | |
| 5724 | outs() << " vtable " << format("0x%" PRIx32"x", c.vtable); |
| 5725 | name = get_symbol_32(offset + offsetof(struct class32_t, vtable)__builtin_offsetof(struct class32_t, vtable), S, info, |
| 5726 | c.vtable); |
| 5727 | if (name != nullptr) |
| 5728 | outs() << " " << name; |
| 5729 | outs() << "\n"; |
| 5730 | |
| 5731 | name = |
Value stored to 'name' is never read | |
| 5732 | get_symbol_32(offset + offsetof(struct class32_t, data)__builtin_offsetof(struct class32_t, data), S, info, c.data); |
| 5733 | outs() << " data " << format("0x%" PRIx32"x", c.data) |
| 5734 | << " (struct class_ro_t *)"; |
| 5735 | |
| 5736 | // This is a Swift class if some of the low bits of the pointer are set. |
| 5737 | if (c.data & 0x3) |
| 5738 | outs() << " Swift class"; |
| 5739 | outs() << "\n"; |
| 5740 | bool is_meta_class; |
| 5741 | if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class)) |
| 5742 | return; |
| 5743 | |
| 5744 | if (!is_meta_class) { |
| 5745 | outs() << "Meta Class\n"; |
| 5746 | print_class32_t(c.isa, info); |
| 5747 | } |
| 5748 | } |
| 5749 | |
| 5750 | static void print_objc_class_t(struct objc_class_t *objc_class, |
| 5751 | struct DisassembleInfo *info) { |
| 5752 | uint32_t offset, left, xleft; |
| 5753 | const char *name, *p, *ivar_list; |
| 5754 | SectionRef S; |
| 5755 | int32_t i; |
| 5756 | struct objc_ivar_list_t objc_ivar_list; |
| 5757 | struct objc_ivar_t ivar; |
| 5758 | |
| 5759 | outs() << "\t\t isa " << format("0x%08" PRIx32"x", objc_class->isa); |
| 5760 | if (info->verbose && CLS_GETINFO(objc_class, CLS_META)((objc_class)->info & (0x2))) { |
| 5761 | name = get_pointer_32(objc_class->isa, offset, left, S, info, true); |
| 5762 | if (name != nullptr) |
| 5763 | outs() << format(" %.*s", left, name); |
| 5764 | else |
| 5765 | outs() << " (not in an __OBJC section)"; |
| 5766 | } |
| 5767 | outs() << "\n"; |
| 5768 | |
| 5769 | outs() << "\t super_class " |
| 5770 | << format("0x%08" PRIx32"x", objc_class->super_class); |
| 5771 | if (info->verbose) { |
| 5772 | name = get_pointer_32(objc_class->super_class, offset, left, S, info, true); |
| 5773 | if (name != nullptr) |
| 5774 | outs() << format(" %.*s", left, name); |
| 5775 | else |
| 5776 | outs() << " (not in an __OBJC section)"; |
| 5777 | } |
| 5778 | outs() << "\n"; |
| 5779 | |
| 5780 | outs() << "\t\t name " << format("0x%08" PRIx32"x", objc_class->name); |
| 5781 | if (info->verbose) { |
| 5782 | name = get_pointer_32(objc_class->name, offset, left, S, info, true); |
| 5783 | if (name != nullptr) |
| 5784 | outs() << format(" %.*s", left, name); |
| 5785 | else |
| 5786 | outs() << " (not in an __OBJC section)"; |
| 5787 | } |
| 5788 | outs() << "\n"; |
| 5789 | |
| 5790 | outs() << "\t\t version " << format("0x%08" PRIx32"x", objc_class->version) |
| 5791 | << "\n"; |
| 5792 | |
| 5793 | outs() << "\t\t info " << format("0x%08" PRIx32"x", objc_class->info); |
| 5794 | if (info->verbose) { |
| 5795 | if (CLS_GETINFO(objc_class, CLS_CLASS)((objc_class)->info & (0x1))) |
| 5796 | outs() << " CLS_CLASS"; |
| 5797 | else if (CLS_GETINFO(objc_class, CLS_META)((objc_class)->info & (0x2))) |
| 5798 | outs() << " CLS_META"; |
| 5799 | } |
| 5800 | outs() << "\n"; |
| 5801 | |
| 5802 | outs() << "\t instance_size " |
| 5803 | << format("0x%08" PRIx32"x", objc_class->instance_size) << "\n"; |
| 5804 | |
| 5805 | p = get_pointer_32(objc_class->ivars, offset, left, S, info, true); |
| 5806 | outs() << "\t\t ivars " << format("0x%08" PRIx32"x", objc_class->ivars); |
| 5807 | if (p != nullptr) { |
| 5808 | if (left > sizeof(struct objc_ivar_list_t)) { |
| 5809 | outs() << "\n"; |
| 5810 | memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t)); |
| 5811 | } else { |
| 5812 | outs() << " (entends past the end of the section)\n"; |
| 5813 | memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t)); |
| 5814 | memcpy(&objc_ivar_list, p, left); |
| 5815 | } |
| 5816 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5817 | swapStruct(objc_ivar_list); |
| 5818 | outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n"; |
| 5819 | ivar_list = p + sizeof(struct objc_ivar_list_t); |
| 5820 | for (i = 0; i < objc_ivar_list.ivar_count; i++) { |
| 5821 | if ((i + 1) * sizeof(struct objc_ivar_t) > left) { |
| 5822 | outs() << "\t\t remaining ivar's extend past the of the section\n"; |
| 5823 | break; |
| 5824 | } |
| 5825 | memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t), |
| 5826 | sizeof(struct objc_ivar_t)); |
| 5827 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5828 | swapStruct(ivar); |
| 5829 | |
| 5830 | outs() << "\t\t\tivar_name " << format("0x%08" PRIx32"x", ivar.ivar_name); |
| 5831 | if (info->verbose) { |
| 5832 | name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true); |
| 5833 | if (name != nullptr) |
| 5834 | outs() << format(" %.*s", xleft, name); |
| 5835 | else |
| 5836 | outs() << " (not in an __OBJC section)"; |
| 5837 | } |
| 5838 | outs() << "\n"; |
| 5839 | |
| 5840 | outs() << "\t\t\tivar_type " << format("0x%08" PRIx32"x", ivar.ivar_type); |
| 5841 | if (info->verbose) { |
| 5842 | name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true); |
| 5843 | if (name != nullptr) |
| 5844 | outs() << format(" %.*s", xleft, name); |
| 5845 | else |
| 5846 | outs() << " (not in an __OBJC section)"; |
| 5847 | } |
| 5848 | outs() << "\n"; |
| 5849 | |
| 5850 | outs() << "\t\t ivar_offset " |
| 5851 | << format("0x%08" PRIx32"x", ivar.ivar_offset) << "\n"; |
| 5852 | } |
| 5853 | } else { |
| 5854 | outs() << " (not in an __OBJC section)\n"; |
| 5855 | } |
| 5856 | |
| 5857 | outs() << "\t\t methods " << format("0x%08" PRIx32"x", objc_class->methodLists); |
| 5858 | if (print_method_list(objc_class->methodLists, info)) |
| 5859 | outs() << " (not in an __OBJC section)\n"; |
| 5860 | |
| 5861 | outs() << "\t\t cache " << format("0x%08" PRIx32"x", objc_class->cache) |
| 5862 | << "\n"; |
| 5863 | |
| 5864 | outs() << "\t\tprotocols " << format("0x%08" PRIx32"x", objc_class->protocols); |
| 5865 | if (print_protocol_list(objc_class->protocols, 16, info)) |
| 5866 | outs() << " (not in an __OBJC section)\n"; |
| 5867 | } |
| 5868 | |
| 5869 | static void print_objc_objc_category_t(struct objc_category_t *objc_category, |
| 5870 | struct DisassembleInfo *info) { |
| 5871 | uint32_t offset, left; |
| 5872 | const char *name; |
| 5873 | SectionRef S; |
| 5874 | |
| 5875 | outs() << "\t category name " |
| 5876 | << format("0x%08" PRIx32"x", objc_category->category_name); |
| 5877 | if (info->verbose) { |
| 5878 | name = get_pointer_32(objc_category->category_name, offset, left, S, info, |
| 5879 | true); |
| 5880 | if (name != nullptr) |
| 5881 | outs() << format(" %.*s", left, name); |
| 5882 | else |
| 5883 | outs() << " (not in an __OBJC section)"; |
| 5884 | } |
| 5885 | outs() << "\n"; |
| 5886 | |
| 5887 | outs() << "\t\t class name " |
| 5888 | << format("0x%08" PRIx32"x", objc_category->class_name); |
| 5889 | if (info->verbose) { |
| 5890 | name = |
| 5891 | get_pointer_32(objc_category->class_name, offset, left, S, info, true); |
| 5892 | if (name != nullptr) |
| 5893 | outs() << format(" %.*s", left, name); |
| 5894 | else |
| 5895 | outs() << " (not in an __OBJC section)"; |
| 5896 | } |
| 5897 | outs() << "\n"; |
| 5898 | |
| 5899 | outs() << "\t instance methods " |
| 5900 | << format("0x%08" PRIx32"x", objc_category->instance_methods); |
| 5901 | if (print_method_list(objc_category->instance_methods, info)) |
| 5902 | outs() << " (not in an __OBJC section)\n"; |
| 5903 | |
| 5904 | outs() << "\t class methods " |
| 5905 | << format("0x%08" PRIx32"x", objc_category->class_methods); |
| 5906 | if (print_method_list(objc_category->class_methods, info)) |
| 5907 | outs() << " (not in an __OBJC section)\n"; |
| 5908 | } |
| 5909 | |
| 5910 | static void print_category64_t(uint64_t p, struct DisassembleInfo *info) { |
| 5911 | struct category64_t c; |
| 5912 | const char *r; |
| 5913 | uint32_t offset, xoffset, left; |
| 5914 | SectionRef S, xS; |
| 5915 | const char *name, *sym_name; |
| 5916 | uint64_t n_value; |
| 5917 | |
| 5918 | r = get_pointer_64(p, offset, left, S, info); |
| 5919 | if (r == nullptr) |
| 5920 | return; |
| 5921 | memset(&c, '\0', sizeof(struct category64_t)); |
| 5922 | if (left < sizeof(struct category64_t)) { |
| 5923 | memcpy(&c, r, left); |
| 5924 | outs() << " (category_t entends past the end of the section)\n"; |
| 5925 | } else |
| 5926 | memcpy(&c, r, sizeof(struct category64_t)); |
| 5927 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 5928 | swapStruct(c); |
| 5929 | |
| 5930 | outs() << " name "; |
| 5931 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, name)__builtin_offsetof(struct category64_t, name), S, |
| 5932 | info, n_value, c.name); |
| 5933 | if (n_value != 0) { |
| 5934 | if (info->verbose && sym_name != nullptr) |
| 5935 | outs() << sym_name; |
| 5936 | else |
| 5937 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5938 | if (c.name != 0) |
| 5939 | outs() << " + " << format("0x%" PRIx64"l" "x", c.name); |
| 5940 | } else |
| 5941 | outs() << format("0x%" PRIx64"l" "x", c.name); |
| 5942 | name = get_pointer_64(c.name + n_value, xoffset, left, xS, info); |
| 5943 | if (name != nullptr) |
| 5944 | outs() << format(" %.*s", left, name); |
| 5945 | outs() << "\n"; |
| 5946 | |
| 5947 | outs() << " cls "; |
| 5948 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls)__builtin_offsetof(struct category64_t, cls), S, info, |
| 5949 | n_value, c.cls); |
| 5950 | if (n_value != 0) { |
| 5951 | if (info->verbose && sym_name != nullptr) |
| 5952 | outs() << sym_name; |
| 5953 | else |
| 5954 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5955 | if (c.cls != 0) |
| 5956 | outs() << " + " << format("0x%" PRIx64"l" "x", c.cls); |
| 5957 | } else |
| 5958 | outs() << format("0x%" PRIx64"l" "x", c.cls); |
| 5959 | outs() << "\n"; |
| 5960 | if (c.cls + n_value != 0) |
| 5961 | print_class64_t(c.cls + n_value, info); |
| 5962 | |
| 5963 | outs() << " instanceMethods "; |
| 5964 | sym_name = |
| 5965 | get_symbol_64(offset + offsetof(struct category64_t, instanceMethods)__builtin_offsetof(struct category64_t, instanceMethods), S, |
| 5966 | info, n_value, c.instanceMethods); |
| 5967 | if (n_value != 0) { |
| 5968 | if (info->verbose && sym_name != nullptr) |
| 5969 | outs() << sym_name; |
| 5970 | else |
| 5971 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5972 | if (c.instanceMethods != 0) |
| 5973 | outs() << " + " << format("0x%" PRIx64"l" "x", c.instanceMethods); |
| 5974 | } else |
| 5975 | outs() << format("0x%" PRIx64"l" "x", c.instanceMethods); |
| 5976 | outs() << "\n"; |
| 5977 | if (c.instanceMethods + n_value != 0) |
| 5978 | print_method_list64_t(c.instanceMethods + n_value, info, ""); |
| 5979 | |
| 5980 | outs() << " classMethods "; |
| 5981 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods)__builtin_offsetof(struct category64_t, classMethods), |
| 5982 | S, info, n_value, c.classMethods); |
| 5983 | if (n_value != 0) { |
| 5984 | if (info->verbose && sym_name != nullptr) |
| 5985 | outs() << sym_name; |
| 5986 | else |
| 5987 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 5988 | if (c.classMethods != 0) |
| 5989 | outs() << " + " << format("0x%" PRIx64"l" "x", c.classMethods); |
| 5990 | } else |
| 5991 | outs() << format("0x%" PRIx64"l" "x", c.classMethods); |
| 5992 | outs() << "\n"; |
| 5993 | if (c.classMethods + n_value != 0) |
| 5994 | print_method_list64_t(c.classMethods + n_value, info, ""); |
| 5995 | |
| 5996 | outs() << " protocols "; |
| 5997 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols)__builtin_offsetof(struct category64_t, protocols), S, |
| 5998 | info, n_value, c.protocols); |
| 5999 | if (n_value != 0) { |
| 6000 | if (info->verbose && sym_name != nullptr) |
| 6001 | outs() << sym_name; |
| 6002 | else |
| 6003 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 6004 | if (c.protocols != 0) |
| 6005 | outs() << " + " << format("0x%" PRIx64"l" "x", c.protocols); |
| 6006 | } else |
| 6007 | outs() << format("0x%" PRIx64"l" "x", c.protocols); |
| 6008 | outs() << "\n"; |
| 6009 | if (c.protocols + n_value != 0) |
| 6010 | print_protocol_list64_t(c.protocols + n_value, info); |
| 6011 | |
| 6012 | outs() << "instanceProperties "; |
| 6013 | sym_name = |
| 6014 | get_symbol_64(offset + offsetof(struct category64_t, instanceProperties)__builtin_offsetof(struct category64_t, instanceProperties), |
| 6015 | S, info, n_value, c.instanceProperties); |
| 6016 | if (n_value != 0) { |
| 6017 | if (info->verbose && sym_name != nullptr) |
| 6018 | outs() << sym_name; |
| 6019 | else |
| 6020 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 6021 | if (c.instanceProperties != 0) |
| 6022 | outs() << " + " << format("0x%" PRIx64"l" "x", c.instanceProperties); |
| 6023 | } else |
| 6024 | outs() << format("0x%" PRIx64"l" "x", c.instanceProperties); |
| 6025 | outs() << "\n"; |
| 6026 | if (c.instanceProperties + n_value != 0) |
| 6027 | print_objc_property_list64(c.instanceProperties + n_value, info); |
| 6028 | } |
| 6029 | |
| 6030 | static void print_category32_t(uint32_t p, struct DisassembleInfo *info) { |
| 6031 | struct category32_t c; |
| 6032 | const char *r; |
| 6033 | uint32_t offset, left; |
| 6034 | SectionRef S, xS; |
| 6035 | const char *name; |
| 6036 | |
| 6037 | r = get_pointer_32(p, offset, left, S, info); |
| 6038 | if (r == nullptr) |
| 6039 | return; |
| 6040 | memset(&c, '\0', sizeof(struct category32_t)); |
| 6041 | if (left < sizeof(struct category32_t)) { |
| 6042 | memcpy(&c, r, left); |
| 6043 | outs() << " (category_t entends past the end of the section)\n"; |
| 6044 | } else |
| 6045 | memcpy(&c, r, sizeof(struct category32_t)); |
| 6046 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6047 | swapStruct(c); |
| 6048 | |
| 6049 | outs() << " name " << format("0x%" PRIx32"x", c.name); |
| 6050 | name = get_symbol_32(offset + offsetof(struct category32_t, name)__builtin_offsetof(struct category32_t, name), S, info, |
| 6051 | c.name); |
| 6052 | if (name) |
| 6053 | outs() << " " << name; |
| 6054 | outs() << "\n"; |
| 6055 | |
| 6056 | outs() << " cls " << format("0x%" PRIx32"x", c.cls) << "\n"; |
| 6057 | if (c.cls != 0) |
| 6058 | print_class32_t(c.cls, info); |
| 6059 | outs() << " instanceMethods " << format("0x%" PRIx32"x", c.instanceMethods) |
| 6060 | << "\n"; |
| 6061 | if (c.instanceMethods != 0) |
| 6062 | print_method_list32_t(c.instanceMethods, info, ""); |
| 6063 | outs() << " classMethods " << format("0x%" PRIx32"x", c.classMethods) |
| 6064 | << "\n"; |
| 6065 | if (c.classMethods != 0) |
| 6066 | print_method_list32_t(c.classMethods, info, ""); |
| 6067 | outs() << " protocols " << format("0x%" PRIx32"x", c.protocols) << "\n"; |
| 6068 | if (c.protocols != 0) |
| 6069 | print_protocol_list32_t(c.protocols, info); |
| 6070 | outs() << "instanceProperties " << format("0x%" PRIx32"x", c.instanceProperties) |
| 6071 | << "\n"; |
| 6072 | if (c.instanceProperties != 0) |
| 6073 | print_objc_property_list32(c.instanceProperties, info); |
| 6074 | } |
| 6075 | |
| 6076 | static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) { |
| 6077 | uint32_t i, left, offset, xoffset; |
| 6078 | uint64_t p, n_value; |
| 6079 | struct message_ref64 mr; |
| 6080 | const char *name, *sym_name; |
| 6081 | const char *r; |
| 6082 | SectionRef xS; |
| 6083 | |
| 6084 | if (S == SectionRef()) |
| 6085 | return; |
| 6086 | |
| 6087 | StringRef SectName; |
| 6088 | Expected<StringRef> SecNameOrErr = S.getName(); |
| 6089 | if (SecNameOrErr) |
| 6090 | SectName = *SecNameOrErr; |
| 6091 | else |
| 6092 | consumeError(SecNameOrErr.takeError()); |
| 6093 | |
| 6094 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 6095 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
| 6096 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 6097 | offset = 0; |
| 6098 | for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { |
| 6099 | p = S.getAddress() + i; |
| 6100 | r = get_pointer_64(p, offset, left, S, info); |
| 6101 | if (r == nullptr) |
| 6102 | return; |
| 6103 | memset(&mr, '\0', sizeof(struct message_ref64)); |
| 6104 | if (left < sizeof(struct message_ref64)) { |
| 6105 | memcpy(&mr, r, left); |
| 6106 | outs() << " (message_ref entends past the end of the section)\n"; |
| 6107 | } else |
| 6108 | memcpy(&mr, r, sizeof(struct message_ref64)); |
| 6109 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6110 | swapStruct(mr); |
| 6111 | |
| 6112 | outs() << " imp "; |
| 6113 | name = get_symbol_64(offset + offsetof(struct message_ref64, imp)__builtin_offsetof(struct message_ref64, imp), S, info, |
| 6114 | n_value, mr.imp); |
| 6115 | if (n_value != 0) { |
| 6116 | outs() << format("0x%" PRIx64"l" "x", n_value) << " "; |
| 6117 | if (mr.imp != 0) |
| 6118 | outs() << "+ " << format("0x%" PRIx64"l" "x", mr.imp) << " "; |
| 6119 | } else |
| 6120 | outs() << format("0x%" PRIx64"l" "x", mr.imp) << " "; |
| 6121 | if (name != nullptr) |
| 6122 | outs() << " " << name; |
| 6123 | outs() << "\n"; |
| 6124 | |
| 6125 | outs() << " sel "; |
| 6126 | sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel)__builtin_offsetof(struct message_ref64, sel), S, |
| 6127 | info, n_value, mr.sel); |
| 6128 | if (n_value != 0) { |
| 6129 | if (info->verbose && sym_name != nullptr) |
| 6130 | outs() << sym_name; |
| 6131 | else |
| 6132 | outs() << format("0x%" PRIx64"l" "x", n_value); |
| 6133 | if (mr.sel != 0) |
| 6134 | outs() << " + " << format("0x%" PRIx64"l" "x", mr.sel); |
| 6135 | } else |
| 6136 | outs() << format("0x%" PRIx64"l" "x", mr.sel); |
| 6137 | name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info); |
| 6138 | if (name != nullptr) |
| 6139 | outs() << format(" %.*s", left, name); |
| 6140 | outs() << "\n"; |
| 6141 | |
| 6142 | offset += sizeof(struct message_ref64); |
| 6143 | } |
| 6144 | } |
| 6145 | |
| 6146 | static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) { |
| 6147 | uint32_t i, left, offset, xoffset, p; |
| 6148 | struct message_ref32 mr; |
| 6149 | const char *name, *r; |
| 6150 | SectionRef xS; |
| 6151 | |
| 6152 | if (S == SectionRef()) |
| 6153 | return; |
| 6154 | |
| 6155 | StringRef SectName; |
| 6156 | Expected<StringRef> SecNameOrErr = S.getName(); |
| 6157 | if (SecNameOrErr) |
| 6158 | SectName = *SecNameOrErr; |
| 6159 | else |
| 6160 | consumeError(SecNameOrErr.takeError()); |
| 6161 | |
| 6162 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 6163 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
| 6164 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 6165 | offset = 0; |
| 6166 | for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { |
| 6167 | p = S.getAddress() + i; |
| 6168 | r = get_pointer_32(p, offset, left, S, info); |
| 6169 | if (r == nullptr) |
| 6170 | return; |
| 6171 | memset(&mr, '\0', sizeof(struct message_ref32)); |
| 6172 | if (left < sizeof(struct message_ref32)) { |
| 6173 | memcpy(&mr, r, left); |
| 6174 | outs() << " (message_ref entends past the end of the section)\n"; |
| 6175 | } else |
| 6176 | memcpy(&mr, r, sizeof(struct message_ref32)); |
| 6177 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6178 | swapStruct(mr); |
| 6179 | |
| 6180 | outs() << " imp " << format("0x%" PRIx32"x", mr.imp); |
| 6181 | name = get_symbol_32(offset + offsetof(struct message_ref32, imp)__builtin_offsetof(struct message_ref32, imp), S, info, |
| 6182 | mr.imp); |
| 6183 | if (name != nullptr) |
| 6184 | outs() << " " << name; |
| 6185 | outs() << "\n"; |
| 6186 | |
| 6187 | outs() << " sel " << format("0x%" PRIx32"x", mr.sel); |
| 6188 | name = get_pointer_32(mr.sel, xoffset, left, xS, info); |
| 6189 | if (name != nullptr) |
| 6190 | outs() << " " << name; |
| 6191 | outs() << "\n"; |
| 6192 | |
| 6193 | offset += sizeof(struct message_ref32); |
| 6194 | } |
| 6195 | } |
| 6196 | |
| 6197 | static void print_image_info64(SectionRef S, struct DisassembleInfo *info) { |
| 6198 | uint32_t left, offset, swift_version; |
| 6199 | uint64_t p; |
| 6200 | struct objc_image_info64 o; |
| 6201 | const char *r; |
| 6202 | |
| 6203 | if (S == SectionRef()) |
| 6204 | return; |
| 6205 | |
| 6206 | StringRef SectName; |
| 6207 | Expected<StringRef> SecNameOrErr = S.getName(); |
| 6208 | if (SecNameOrErr) |
| 6209 | SectName = *SecNameOrErr; |
| 6210 | else |
| 6211 | consumeError(SecNameOrErr.takeError()); |
| 6212 | |
| 6213 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 6214 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
| 6215 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 6216 | p = S.getAddress(); |
| 6217 | r = get_pointer_64(p, offset, left, S, info); |
| 6218 | if (r == nullptr) |
| 6219 | return; |
| 6220 | memset(&o, '\0', sizeof(struct objc_image_info64)); |
| 6221 | if (left < sizeof(struct objc_image_info64)) { |
| 6222 | memcpy(&o, r, left); |
| 6223 | outs() << " (objc_image_info entends past the end of the section)\n"; |
| 6224 | } else |
| 6225 | memcpy(&o, r, sizeof(struct objc_image_info64)); |
| 6226 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6227 | swapStruct(o); |
| 6228 | outs() << " version " << o.version << "\n"; |
| 6229 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
| 6230 | if (o.flags & OBJC_IMAGE_IS_REPLACEMENT(1 << 0)) |
| 6231 | outs() << " OBJC_IMAGE_IS_REPLACEMENT"; |
| 6232 | if (o.flags & OBJC_IMAGE_SUPPORTS_GC(1 << 1)) |
| 6233 | outs() << " OBJC_IMAGE_SUPPORTS_GC"; |
| 6234 | if (o.flags & OBJC_IMAGE_IS_SIMULATED(1 << 5)) |
| 6235 | outs() << " OBJC_IMAGE_IS_SIMULATED"; |
| 6236 | if (o.flags & OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES(1 << 6)) |
| 6237 | outs() << " OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES"; |
| 6238 | swift_version = (o.flags >> 8) & 0xff; |
| 6239 | if (swift_version != 0) { |
| 6240 | if (swift_version == 1) |
| 6241 | outs() << " Swift 1.0"; |
| 6242 | else if (swift_version == 2) |
| 6243 | outs() << " Swift 1.1"; |
| 6244 | else if(swift_version == 3) |
| 6245 | outs() << " Swift 2.0"; |
| 6246 | else if(swift_version == 4) |
| 6247 | outs() << " Swift 3.0"; |
| 6248 | else if(swift_version == 5) |
| 6249 | outs() << " Swift 4.0"; |
| 6250 | else if(swift_version == 6) |
| 6251 | outs() << " Swift 4.1/Swift 4.2"; |
| 6252 | else if(swift_version == 7) |
| 6253 | outs() << " Swift 5 or later"; |
| 6254 | else |
| 6255 | outs() << " unknown future Swift version (" << swift_version << ")"; |
| 6256 | } |
| 6257 | outs() << "\n"; |
| 6258 | } |
| 6259 | |
| 6260 | static void print_image_info32(SectionRef S, struct DisassembleInfo *info) { |
| 6261 | uint32_t left, offset, swift_version, p; |
| 6262 | struct objc_image_info32 o; |
| 6263 | const char *r; |
| 6264 | |
| 6265 | if (S == SectionRef()) |
| 6266 | return; |
| 6267 | |
| 6268 | StringRef SectName; |
| 6269 | Expected<StringRef> SecNameOrErr = S.getName(); |
| 6270 | if (SecNameOrErr) |
| 6271 | SectName = *SecNameOrErr; |
| 6272 | else |
| 6273 | consumeError(SecNameOrErr.takeError()); |
| 6274 | |
| 6275 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 6276 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
| 6277 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 6278 | p = S.getAddress(); |
| 6279 | r = get_pointer_32(p, offset, left, S, info); |
| 6280 | if (r == nullptr) |
| 6281 | return; |
| 6282 | memset(&o, '\0', sizeof(struct objc_image_info32)); |
| 6283 | if (left < sizeof(struct objc_image_info32)) { |
| 6284 | memcpy(&o, r, left); |
| 6285 | outs() << " (objc_image_info entends past the end of the section)\n"; |
| 6286 | } else |
| 6287 | memcpy(&o, r, sizeof(struct objc_image_info32)); |
| 6288 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6289 | swapStruct(o); |
| 6290 | outs() << " version " << o.version << "\n"; |
| 6291 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
| 6292 | if (o.flags & OBJC_IMAGE_IS_REPLACEMENT(1 << 0)) |
| 6293 | outs() << " OBJC_IMAGE_IS_REPLACEMENT"; |
| 6294 | if (o.flags & OBJC_IMAGE_SUPPORTS_GC(1 << 1)) |
| 6295 | outs() << " OBJC_IMAGE_SUPPORTS_GC"; |
| 6296 | swift_version = (o.flags >> 8) & 0xff; |
| 6297 | if (swift_version != 0) { |
| 6298 | if (swift_version == 1) |
| 6299 | outs() << " Swift 1.0"; |
| 6300 | else if (swift_version == 2) |
| 6301 | outs() << " Swift 1.1"; |
| 6302 | else if(swift_version == 3) |
| 6303 | outs() << " Swift 2.0"; |
| 6304 | else if(swift_version == 4) |
| 6305 | outs() << " Swift 3.0"; |
| 6306 | else if(swift_version == 5) |
| 6307 | outs() << " Swift 4.0"; |
| 6308 | else if(swift_version == 6) |
| 6309 | outs() << " Swift 4.1/Swift 4.2"; |
| 6310 | else if(swift_version == 7) |
| 6311 | outs() << " Swift 5 or later"; |
| 6312 | else |
| 6313 | outs() << " unknown future Swift version (" << swift_version << ")"; |
| 6314 | } |
| 6315 | outs() << "\n"; |
| 6316 | } |
| 6317 | |
| 6318 | static void print_image_info(SectionRef S, struct DisassembleInfo *info) { |
| 6319 | uint32_t left, offset, p; |
| 6320 | struct imageInfo_t o; |
| 6321 | const char *r; |
| 6322 | |
| 6323 | StringRef SectName; |
| 6324 | Expected<StringRef> SecNameOrErr = S.getName(); |
| 6325 | if (SecNameOrErr) |
| 6326 | SectName = *SecNameOrErr; |
| 6327 | else |
| 6328 | consumeError(SecNameOrErr.takeError()); |
| 6329 | |
| 6330 | DataRefImpl Ref = S.getRawDataRefImpl(); |
| 6331 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
| 6332 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
| 6333 | p = S.getAddress(); |
| 6334 | r = get_pointer_32(p, offset, left, S, info); |
| 6335 | if (r == nullptr) |
| 6336 | return; |
| 6337 | memset(&o, '\0', sizeof(struct imageInfo_t)); |
| 6338 | if (left < sizeof(struct imageInfo_t)) { |
| 6339 | memcpy(&o, r, left); |
| 6340 | outs() << " (imageInfo entends past the end of the section)\n"; |
| 6341 | } else |
| 6342 | memcpy(&o, r, sizeof(struct imageInfo_t)); |
| 6343 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6344 | swapStruct(o); |
| 6345 | outs() << " version " << o.version << "\n"; |
| 6346 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
| 6347 | if (o.flags & 0x1) |
| 6348 | outs() << " F&C"; |
| 6349 | if (o.flags & 0x2) |
| 6350 | outs() << " GC"; |
| 6351 | if (o.flags & 0x4) |
| 6352 | outs() << " GC-only"; |
| 6353 | else |
| 6354 | outs() << " RR"; |
| 6355 | outs() << "\n"; |
| 6356 | } |
| 6357 | |
| 6358 | static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) { |
| 6359 | SymbolAddressMap AddrMap; |
| 6360 | if (verbose) |
| 6361 | CreateSymbolAddressMap(O, &AddrMap); |
| 6362 | |
| 6363 | std::vector<SectionRef> Sections; |
| 6364 | append_range(Sections, O->sections()); |
| 6365 | |
| 6366 | struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); |
| 6367 | |
| 6368 | SectionRef CL = get_section(O, "__OBJC2", "__class_list"); |
| 6369 | if (CL == SectionRef()) |
| 6370 | CL = get_section(O, "__DATA", "__objc_classlist"); |
| 6371 | if (CL == SectionRef()) |
| 6372 | CL = get_section(O, "__DATA_CONST", "__objc_classlist"); |
| 6373 | if (CL == SectionRef()) |
| 6374 | CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); |
| 6375 | info.S = CL; |
| 6376 | walk_pointer_list_64("class", CL, O, &info, print_class64_t); |
| 6377 | |
| 6378 | SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); |
| 6379 | if (CR == SectionRef()) |
| 6380 | CR = get_section(O, "__DATA", "__objc_classrefs"); |
| 6381 | if (CR == SectionRef()) |
| 6382 | CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); |
| 6383 | if (CR == SectionRef()) |
| 6384 | CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); |
| 6385 | info.S = CR; |
| 6386 | walk_pointer_list_64("class refs", CR, O, &info, nullptr); |
| 6387 | |
| 6388 | SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); |
| 6389 | if (SR == SectionRef()) |
| 6390 | SR = get_section(O, "__DATA", "__objc_superrefs"); |
| 6391 | if (SR == SectionRef()) |
| 6392 | SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); |
| 6393 | if (SR == SectionRef()) |
| 6394 | SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); |
| 6395 | info.S = SR; |
| 6396 | walk_pointer_list_64("super refs", SR, O, &info, nullptr); |
| 6397 | |
| 6398 | SectionRef CA = get_section(O, "__OBJC2", "__category_list"); |
| 6399 | if (CA == SectionRef()) |
| 6400 | CA = get_section(O, "__DATA", "__objc_catlist"); |
| 6401 | if (CA == SectionRef()) |
| 6402 | CA = get_section(O, "__DATA_CONST", "__objc_catlist"); |
| 6403 | if (CA == SectionRef()) |
| 6404 | CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); |
| 6405 | info.S = CA; |
| 6406 | walk_pointer_list_64("category", CA, O, &info, print_category64_t); |
| 6407 | |
| 6408 | SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); |
| 6409 | if (PL == SectionRef()) |
| 6410 | PL = get_section(O, "__DATA", "__objc_protolist"); |
| 6411 | if (PL == SectionRef()) |
| 6412 | PL = get_section(O, "__DATA_CONST", "__objc_protolist"); |
| 6413 | if (PL == SectionRef()) |
| 6414 | PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); |
| 6415 | info.S = PL; |
| 6416 | walk_pointer_list_64("protocol", PL, O, &info, nullptr); |
| 6417 | |
| 6418 | SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); |
| 6419 | if (MR == SectionRef()) |
| 6420 | MR = get_section(O, "__DATA", "__objc_msgrefs"); |
| 6421 | if (MR == SectionRef()) |
| 6422 | MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); |
| 6423 | if (MR == SectionRef()) |
| 6424 | MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); |
| 6425 | info.S = MR; |
| 6426 | print_message_refs64(MR, &info); |
| 6427 | |
| 6428 | SectionRef II = get_section(O, "__OBJC2", "__image_info"); |
| 6429 | if (II == SectionRef()) |
| 6430 | II = get_section(O, "__DATA", "__objc_imageinfo"); |
| 6431 | if (II == SectionRef()) |
| 6432 | II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); |
| 6433 | if (II == SectionRef()) |
| 6434 | II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); |
| 6435 | info.S = II; |
| 6436 | print_image_info64(II, &info); |
| 6437 | } |
| 6438 | |
| 6439 | static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) { |
| 6440 | SymbolAddressMap AddrMap; |
| 6441 | if (verbose) |
| 6442 | CreateSymbolAddressMap(O, &AddrMap); |
| 6443 | |
| 6444 | std::vector<SectionRef> Sections; |
| 6445 | append_range(Sections, O->sections()); |
| 6446 | |
| 6447 | struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); |
| 6448 | |
| 6449 | SectionRef CL = get_section(O, "__OBJC2", "__class_list"); |
| 6450 | if (CL == SectionRef()) |
| 6451 | CL = get_section(O, "__DATA", "__objc_classlist"); |
| 6452 | if (CL == SectionRef()) |
| 6453 | CL = get_section(O, "__DATA_CONST", "__objc_classlist"); |
| 6454 | if (CL == SectionRef()) |
| 6455 | CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); |
| 6456 | info.S = CL; |
| 6457 | walk_pointer_list_32("class", CL, O, &info, print_class32_t); |
| 6458 | |
| 6459 | SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); |
| 6460 | if (CR == SectionRef()) |
| 6461 | CR = get_section(O, "__DATA", "__objc_classrefs"); |
| 6462 | if (CR == SectionRef()) |
| 6463 | CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); |
| 6464 | if (CR == SectionRef()) |
| 6465 | CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); |
| 6466 | info.S = CR; |
| 6467 | walk_pointer_list_32("class refs", CR, O, &info, nullptr); |
| 6468 | |
| 6469 | SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); |
| 6470 | if (SR == SectionRef()) |
| 6471 | SR = get_section(O, "__DATA", "__objc_superrefs"); |
| 6472 | if (SR == SectionRef()) |
| 6473 | SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); |
| 6474 | if (SR == SectionRef()) |
| 6475 | SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); |
| 6476 | info.S = SR; |
| 6477 | walk_pointer_list_32("super refs", SR, O, &info, nullptr); |
| 6478 | |
| 6479 | SectionRef CA = get_section(O, "__OBJC2", "__category_list"); |
| 6480 | if (CA == SectionRef()) |
| 6481 | CA = get_section(O, "__DATA", "__objc_catlist"); |
| 6482 | if (CA == SectionRef()) |
| 6483 | CA = get_section(O, "__DATA_CONST", "__objc_catlist"); |
| 6484 | if (CA == SectionRef()) |
| 6485 | CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); |
| 6486 | info.S = CA; |
| 6487 | walk_pointer_list_32("category", CA, O, &info, print_category32_t); |
| 6488 | |
| 6489 | SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); |
| 6490 | if (PL == SectionRef()) |
| 6491 | PL = get_section(O, "__DATA", "__objc_protolist"); |
| 6492 | if (PL == SectionRef()) |
| 6493 | PL = get_section(O, "__DATA_CONST", "__objc_protolist"); |
| 6494 | if (PL == SectionRef()) |
| 6495 | PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); |
| 6496 | info.S = PL; |
| 6497 | walk_pointer_list_32("protocol", PL, O, &info, nullptr); |
| 6498 | |
| 6499 | SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); |
| 6500 | if (MR == SectionRef()) |
| 6501 | MR = get_section(O, "__DATA", "__objc_msgrefs"); |
| 6502 | if (MR == SectionRef()) |
| 6503 | MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); |
| 6504 | if (MR == SectionRef()) |
| 6505 | MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); |
| 6506 | info.S = MR; |
| 6507 | print_message_refs32(MR, &info); |
| 6508 | |
| 6509 | SectionRef II = get_section(O, "__OBJC2", "__image_info"); |
| 6510 | if (II == SectionRef()) |
| 6511 | II = get_section(O, "__DATA", "__objc_imageinfo"); |
| 6512 | if (II == SectionRef()) |
| 6513 | II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); |
| 6514 | if (II == SectionRef()) |
| 6515 | II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); |
| 6516 | info.S = II; |
| 6517 | print_image_info32(II, &info); |
| 6518 | } |
| 6519 | |
| 6520 | static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) { |
| 6521 | uint32_t i, j, p, offset, xoffset, left, defs_left, def; |
| 6522 | const char *r, *name, *defs; |
| 6523 | struct objc_module_t module; |
| 6524 | SectionRef S, xS; |
| 6525 | struct objc_symtab_t symtab; |
| 6526 | struct objc_class_t objc_class; |
| 6527 | struct objc_category_t objc_category; |
| 6528 | |
| 6529 | outs() << "Objective-C segment\n"; |
| 6530 | S = get_section(O, "__OBJC", "__module_info"); |
| 6531 | if (S == SectionRef()) |
| 6532 | return false; |
| 6533 | |
| 6534 | SymbolAddressMap AddrMap; |
| 6535 | if (verbose) |
| 6536 | CreateSymbolAddressMap(O, &AddrMap); |
| 6537 | |
| 6538 | std::vector<SectionRef> Sections; |
| 6539 | append_range(Sections, O->sections()); |
| 6540 | |
| 6541 | struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); |
| 6542 | |
| 6543 | for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) { |
| 6544 | p = S.getAddress() + i; |
| 6545 | r = get_pointer_32(p, offset, left, S, &info, true); |
| 6546 | if (r == nullptr) |
| 6547 | return true; |
| 6548 | memset(&module, '\0', sizeof(struct objc_module_t)); |
| 6549 | if (left < sizeof(struct objc_module_t)) { |
| 6550 | memcpy(&module, r, left); |
| 6551 | outs() << " (module extends past end of __module_info section)\n"; |
| 6552 | } else |
| 6553 | memcpy(&module, r, sizeof(struct objc_module_t)); |
| 6554 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6555 | swapStruct(module); |
| 6556 | |
| 6557 | outs() << "Module " << format("0x%" PRIx32"x", p) << "\n"; |
| 6558 | outs() << " version " << module.version << "\n"; |
| 6559 | outs() << " size " << module.size << "\n"; |
| 6560 | outs() << " name "; |
| 6561 | name = get_pointer_32(module.name, xoffset, left, xS, &info, true); |
| 6562 | if (name != nullptr) |
| 6563 | outs() << format("%.*s", left, name); |
| 6564 | else |
| 6565 | outs() << format("0x%08" PRIx32"x", module.name) |
| 6566 | << "(not in an __OBJC section)"; |
| 6567 | outs() << "\n"; |
| 6568 | |
| 6569 | r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true); |
| 6570 | if (module.symtab == 0 || r == nullptr) { |
| 6571 | outs() << " symtab " << format("0x%08" PRIx32"x", module.symtab) |
| 6572 | << " (not in an __OBJC section)\n"; |
| 6573 | continue; |
| 6574 | } |
| 6575 | outs() << " symtab " << format("0x%08" PRIx32"x", module.symtab) << "\n"; |
| 6576 | memset(&symtab, '\0', sizeof(struct objc_symtab_t)); |
| 6577 | defs_left = 0; |
| 6578 | defs = nullptr; |
| 6579 | if (left < sizeof(struct objc_symtab_t)) { |
| 6580 | memcpy(&symtab, r, left); |
| 6581 | outs() << "\tsymtab extends past end of an __OBJC section)\n"; |
| 6582 | } else { |
| 6583 | memcpy(&symtab, r, sizeof(struct objc_symtab_t)); |
| 6584 | if (left > sizeof(struct objc_symtab_t)) { |
| 6585 | defs_left = left - sizeof(struct objc_symtab_t); |
| 6586 | defs = r + sizeof(struct objc_symtab_t); |
| 6587 | } |
| 6588 | } |
| 6589 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6590 | swapStruct(symtab); |
| 6591 | |
| 6592 | outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n"; |
| 6593 | r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true); |
| 6594 | outs() << "\trefs " << format("0x%08" PRIx32"x", symtab.refs); |
| 6595 | if (r == nullptr) |
| 6596 | outs() << " (not in an __OBJC section)"; |
| 6597 | outs() << "\n"; |
| 6598 | outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n"; |
| 6599 | outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n"; |
| 6600 | if (symtab.cls_def_cnt > 0) |
| 6601 | outs() << "\tClass Definitions\n"; |
| 6602 | for (j = 0; j < symtab.cls_def_cnt; j++) { |
| 6603 | if ((j + 1) * sizeof(uint32_t) > defs_left) { |
| 6604 | outs() << "\t(remaining class defs entries entends past the end of the " |
| 6605 | << "section)\n"; |
| 6606 | break; |
| 6607 | } |
| 6608 | memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t)); |
| 6609 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6610 | sys::swapByteOrder(def); |
| 6611 | |
| 6612 | r = get_pointer_32(def, xoffset, left, xS, &info, true); |
| 6613 | outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32"x", def); |
| 6614 | if (r != nullptr) { |
| 6615 | if (left > sizeof(struct objc_class_t)) { |
| 6616 | outs() << "\n"; |
| 6617 | memcpy(&objc_class, r, sizeof(struct objc_class_t)); |
| 6618 | } else { |
| 6619 | outs() << " (entends past the end of the section)\n"; |
| 6620 | memset(&objc_class, '\0', sizeof(struct objc_class_t)); |
| 6621 | memcpy(&objc_class, r, left); |
| 6622 | } |
| 6623 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6624 | swapStruct(objc_class); |
| 6625 | print_objc_class_t(&objc_class, &info); |
| 6626 | } else { |
| 6627 | outs() << "(not in an __OBJC section)\n"; |
| 6628 | } |
| 6629 | |
| 6630 | if (CLS_GETINFO(&objc_class, CLS_CLASS)((&objc_class)->info & (0x1))) { |
| 6631 | outs() << "\tMeta Class"; |
| 6632 | r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true); |
| 6633 | if (r != nullptr) { |
| 6634 | if (left > sizeof(struct objc_class_t)) { |
| 6635 | outs() << "\n"; |
| 6636 | memcpy(&objc_class, r, sizeof(struct objc_class_t)); |
| 6637 | } else { |
| 6638 | outs() << " (entends past the end of the section)\n"; |
| 6639 | memset(&objc_class, '\0', sizeof(struct objc_class_t)); |
| 6640 | memcpy(&objc_class, r, left); |
| 6641 | } |
| 6642 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6643 | swapStruct(objc_class); |
| 6644 | print_objc_class_t(&objc_class, &info); |
| 6645 | } else { |
| 6646 | outs() << "(not in an __OBJC section)\n"; |
| 6647 | } |
| 6648 | } |
| 6649 | } |
| 6650 | if (symtab.cat_def_cnt > 0) |
| 6651 | outs() << "\tCategory Definitions\n"; |
| 6652 | for (j = 0; j < symtab.cat_def_cnt; j++) { |
| 6653 | if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) { |
| 6654 | outs() << "\t(remaining category defs entries entends past the end of " |
| 6655 | << "the section)\n"; |
| 6656 | break; |
| 6657 | } |
| 6658 | memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t), |
| 6659 | sizeof(uint32_t)); |
| 6660 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6661 | sys::swapByteOrder(def); |
| 6662 | |
| 6663 | r = get_pointer_32(def, xoffset, left, xS, &info, true); |
| 6664 | outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] " |
| 6665 | << format("0x%08" PRIx32"x", def); |
| 6666 | if (r != nullptr) { |
| 6667 | if (left > sizeof(struct objc_category_t)) { |
| 6668 | outs() << "\n"; |
| 6669 | memcpy(&objc_category, r, sizeof(struct objc_category_t)); |
| 6670 | } else { |
| 6671 | outs() << " (entends past the end of the section)\n"; |
| 6672 | memset(&objc_category, '\0', sizeof(struct objc_category_t)); |
| 6673 | memcpy(&objc_category, r, left); |
| 6674 | } |
| 6675 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6676 | swapStruct(objc_category); |
| 6677 | print_objc_objc_category_t(&objc_category, &info); |
| 6678 | } else { |
| 6679 | outs() << "(not in an __OBJC section)\n"; |
| 6680 | } |
| 6681 | } |
| 6682 | } |
| 6683 | const SectionRef II = get_section(O, "__OBJC", "__image_info"); |
| 6684 | if (II != SectionRef()) |
| 6685 | print_image_info(II, &info); |
| 6686 | |
| 6687 | return true; |
| 6688 | } |
| 6689 | |
| 6690 | static void DumpProtocolSection(MachOObjectFile *O, const char *sect, |
| 6691 | uint32_t size, uint32_t addr) { |
| 6692 | SymbolAddressMap AddrMap; |
| 6693 | CreateSymbolAddressMap(O, &AddrMap); |
| 6694 | |
| 6695 | std::vector<SectionRef> Sections; |
| 6696 | append_range(Sections, O->sections()); |
| 6697 | |
| 6698 | struct DisassembleInfo info(O, &AddrMap, &Sections, true); |
| 6699 | |
| 6700 | const char *p; |
| 6701 | struct objc_protocol_t protocol; |
| 6702 | uint32_t left, paddr; |
| 6703 | for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) { |
| 6704 | memset(&protocol, '\0', sizeof(struct objc_protocol_t)); |
| 6705 | left = size - (p - sect); |
| 6706 | if (left < sizeof(struct objc_protocol_t)) { |
| 6707 | outs() << "Protocol extends past end of __protocol section\n"; |
| 6708 | memcpy(&protocol, p, left); |
| 6709 | } else |
| 6710 | memcpy(&protocol, p, sizeof(struct objc_protocol_t)); |
| 6711 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
| 6712 | swapStruct(protocol); |
| 6713 | paddr = addr + (p - sect); |
| 6714 | outs() << "Protocol " << format("0x%" PRIx32"x", paddr); |
| 6715 | if (print_protocol(paddr, 0, &info)) |
| 6716 | outs() << "(not in an __OBJC section)\n"; |
| 6717 | } |
| 6718 | } |
| 6719 | |
| 6720 | #ifdef LLVM_HAVE_LIBXAR |
| 6721 | static inline void swapStruct(struct xar_header &xar) { |
| 6722 | sys::swapByteOrder(xar.magic); |
| 6723 | sys::swapByteOrder(xar.size); |
| 6724 | sys::swapByteOrder(xar.version); |
| 6725 | sys::swapByteOrder(xar.toc_length_compressed); |
| 6726 | sys::swapByteOrder(xar.toc_length_uncompressed); |
| 6727 | sys::swapByteOrder(xar.cksum_alg); |
| 6728 | } |
| 6729 | |
| 6730 | static void PrintModeVerbose(uint32_t mode) { |
| 6731 | switch(mode & S_IFMT){ |
| 6732 | case S_IFDIR: |
| 6733 | outs() << "d"; |
| 6734 | break; |
| 6735 | case S_IFCHR: |
| 6736 | outs() << "c"; |
| 6737 | break; |
| 6738 | case S_IFBLK: |
| 6739 | outs() << "b"; |
| 6740 | break; |
| 6741 | case S_IFREG: |
| 6742 | outs() << "-"; |
| 6743 | break; |
| 6744 | case S_IFLNK: |
| 6745 | outs() << "l"; |
| 6746 | break; |
| 6747 | case S_IFSOCK: |
| 6748 | outs() << "s"; |
| 6749 | break; |
| 6750 | default: |
| 6751 | outs() << "?"; |
| 6752 | break; |
| 6753 | } |
| 6754 | |
| 6755 | /* owner permissions */ |
| 6756 | if(mode & S_IREAD) |
| 6757 | outs() << "r"; |
| 6758 | else |
| 6759 | outs() << "-"; |
| 6760 | if(mode & S_IWRITE) |
| 6761 | outs() << "w"; |
| 6762 | else |
| 6763 | outs() << "-"; |
| 6764 | if(mode & S_ISUID) |
| 6765 | outs() << "s"; |
| 6766 | else if(mode & S_IEXEC) |
| 6767 | outs() << "x"; |
| 6768 | else |
| 6769 | outs() << "-"; |
| 6770 | |
| 6771 | /* group permissions */ |
| 6772 | if(mode & (S_IREAD >> 3)) |
| 6773 | outs() << "r"; |
| 6774 | else |
| 6775 | outs() << "-"; |
| 6776 | if(mode & (S_IWRITE >> 3)) |
| 6777 | outs() << "w"; |
| 6778 | else |
| 6779 | outs() << "-"; |
| 6780 | if(mode & S_ISGID) |
| 6781 | outs() << "s"; |
| 6782 | else if(mode & (S_IEXEC >> 3)) |
| 6783 | outs() << "x"; |
| 6784 | else |
| 6785 | outs() << "-"; |
| 6786 | |
| 6787 | /* other permissions */ |
| 6788 | if(mode & (S_IREAD >> 6)) |
| 6789 | outs() << "r"; |
| 6790 | else |
| 6791 | outs() << "-"; |
| 6792 | if(mode & (S_IWRITE >> 6)) |
| 6793 | outs() << "w"; |
| 6794 | else |
| 6795 | outs() << "-"; |
| 6796 | if(mode & S_ISVTX) |
| 6797 | outs() << "t"; |
| 6798 | else if(mode & (S_IEXEC >> 6)) |
| 6799 | outs() << "x"; |
| 6800 | else |
| 6801 | outs() << "-"; |
| 6802 | } |
| 6803 | |
| 6804 | static void PrintXarFilesSummary(const char *XarFilename, xar_t xar) { |
| 6805 | xar_file_t xf; |
| 6806 | const char *key, *type, *mode, *user, *group, *size, *mtime, *name, *m; |
| 6807 | char *endp; |
| 6808 | uint32_t mode_value; |
| 6809 | |
| 6810 | ScopedXarIter xi; |
| 6811 | if (!xi) { |
| 6812 | WithColor::error(errs(), "llvm-objdump") |
| 6813 | << "can't obtain an xar iterator for xar archive " << XarFilename |
| 6814 | << "\n"; |
| 6815 | return; |
| 6816 | } |
| 6817 | |
| 6818 | // Go through the xar's files. |
| 6819 | for (xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)) { |
| 6820 | ScopedXarIter xp; |
| 6821 | if(!xp){ |
| 6822 | WithColor::error(errs(), "llvm-objdump") |
| 6823 | << "can't obtain an xar iterator for xar archive " << XarFilename |
| 6824 | << "\n"; |
| 6825 | return; |
| 6826 | } |
| 6827 | type = nullptr; |
| 6828 | mode = nullptr; |
| 6829 | user = nullptr; |
| 6830 | group = nullptr; |
| 6831 | size = nullptr; |
| 6832 | mtime = nullptr; |
| 6833 | name = nullptr; |
| 6834 | for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ |
| 6835 | const char *val = nullptr; |
| 6836 | xar_prop_get(xf, key, &val); |
| 6837 | #if 0 // Useful for debugging. |
| 6838 | outs() << "key: " << key << " value: " << val << "\n"; |
| 6839 | #endif |
| 6840 | if(strcmp(key, "type") == 0) |
| 6841 | type = val; |
| 6842 | if(strcmp(key, "mode") == 0) |
| 6843 | mode = val; |
| 6844 | if(strcmp(key, "user") == 0) |
| 6845 | user = val; |
| 6846 | if(strcmp(key, "group") == 0) |
| 6847 | group = val; |
| 6848 | if(strcmp(key, "data/size") == 0) |
| 6849 | size = val; |
| 6850 | if(strcmp(key, "mtime") == 0) |
| 6851 | mtime = val; |
| 6852 | if(strcmp(key, "name") == 0) |
| 6853 | name = val; |
| 6854 | } |
| 6855 | if(mode != nullptr){ |
| 6856 | mode_value = strtoul(mode, &endp, 8); |
| 6857 | if(*endp != '\0') |
| 6858 | outs() << "(mode: \"" << mode << "\" contains non-octal chars) "; |
| 6859 | if(strcmp(type, "file") == 0) |
| 6860 | mode_value |= S_IFREG; |
| 6861 | PrintModeVerbose(mode_value); |
| 6862 | outs() << " "; |
| 6863 | } |
| 6864 | if(user != nullptr) |
| 6865 | outs() << format("%10s/", user); |
| 6866 | if(group != nullptr) |
| 6867 | outs() << format("%-10s ", group); |
| 6868 | if(size != nullptr) |
| 6869 | outs() << format("%7s ", size); |
| 6870 | if(mtime != nullptr){ |
| 6871 | for(m = mtime; *m != 'T' && *m != '\0'; m++) |
| 6872 | outs() << *m; |
| 6873 | if(*m == 'T') |
| 6874 | m++; |
| 6875 | outs() << " "; |
| 6876 | for( ; *m != 'Z' && *m != '\0'; m++) |
| 6877 | outs() << *m; |
| 6878 | outs() << " "; |
| 6879 | } |
| 6880 | if(name != nullptr) |
| 6881 | outs() << name; |
| 6882 | outs() << "\n"; |
| 6883 | } |
| 6884 | } |
| 6885 | |
| 6886 | static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, |
| 6887 | uint32_t size, bool verbose, |
| 6888 | bool PrintXarHeader, bool PrintXarFileHeaders, |
| 6889 | std::string XarMemberName) { |
| 6890 | if(size < sizeof(struct xar_header)) { |
| 6891 | outs() << "size of (__LLVM,__bundle) section too small (smaller than size " |
| 6892 | "of struct xar_header)\n"; |
| 6893 | return; |
| 6894 | } |
| 6895 | struct xar_header XarHeader; |
| 6896 | memcpy(&XarHeader, sect, sizeof(struct xar_header)); |
| 6897 | if (sys::IsLittleEndianHost) |
| 6898 | swapStruct(XarHeader); |
| 6899 | if (PrintXarHeader) { |
| 6900 | if (!XarMemberName.empty()) |
| 6901 | outs() << "In xar member " << XarMemberName << ": "; |
| 6902 | else |
| 6903 | outs() << "For (__LLVM,__bundle) section: "; |
| 6904 | outs() << "xar header\n"; |
| 6905 | if (XarHeader.magic == XAR_HEADER_MAGIC) |
| 6906 | outs() << " magic XAR_HEADER_MAGIC\n"; |
| 6907 | else |
| 6908 | outs() << " magic " |
| 6909 | << format_hex(XarHeader.magic, 10, true) |
| 6910 | << " (not XAR_HEADER_MAGIC)\n"; |
| 6911 | outs() << " size " << XarHeader.size << "\n"; |
| 6912 | outs() << " version " << XarHeader.version << "\n"; |
| 6913 | outs() << " toc_length_compressed " << XarHeader.toc_length_compressed |
| 6914 | << "\n"; |
| 6915 | outs() << "toc_length_uncompressed " << XarHeader.toc_length_uncompressed |
| 6916 | << "\n"; |
| 6917 | outs() << " cksum_alg "; |
| 6918 | switch (XarHeader.cksum_alg) { |
| 6919 | case XAR_CKSUM_NONE: |
| 6920 | outs() << "XAR_CKSUM_NONE\n"; |
| 6921 | break; |
| 6922 | case XAR_CKSUM_SHA1: |
| 6923 | outs() << "XAR_CKSUM_SHA1\n"; |
| 6924 | break; |
| 6925 | case XAR_CKSUM_MD5: |
| 6926 | outs() << "XAR_CKSUM_MD5\n"; |
| 6927 | break; |
| 6928 | #ifdef XAR_CKSUM_SHA256 |
| 6929 | case XAR_CKSUM_SHA256: |
| 6930 | outs() << "XAR_CKSUM_SHA256\n"; |
| 6931 | break; |
| 6932 | #endif |
| 6933 | #ifdef XAR_CKSUM_SHA512 |
| 6934 | case XAR_CKSUM_SHA512: |
| 6935 | outs() << "XAR_CKSUM_SHA512\n"; |
| 6936 | break; |
| 6937 | #endif |
| 6938 | default: |
| 6939 | outs() << XarHeader.cksum_alg << "\n"; |
| 6940 | } |
| 6941 | } |
| 6942 | |
| 6943 | SmallString<128> XarFilename; |
| 6944 | int FD; |
| 6945 | std::error_code XarEC = |
| 6946 | sys::fs::createTemporaryFile("llvm-objdump", "xar", FD, XarFilename); |
| 6947 | if (XarEC) { |
| 6948 | WithColor::error(errs(), "llvm-objdump") << XarEC.message() << "\n"; |
| 6949 | return; |
| 6950 | } |
| 6951 | ToolOutputFile XarFile(XarFilename, FD); |
| 6952 | raw_fd_ostream &XarOut = XarFile.os(); |
| 6953 | StringRef XarContents(sect, size); |
| 6954 | XarOut << XarContents; |
| 6955 | XarOut.close(); |
| 6956 | if (XarOut.has_error()) |
| 6957 | return; |
| 6958 | |
| 6959 | ScopedXarFile xar(XarFilename.c_str(), READ); |
| 6960 | if (!xar) { |
| 6961 | WithColor::error(errs(), "llvm-objdump") |
| 6962 | << "can't create temporary xar archive " << XarFilename << "\n"; |
| 6963 | return; |
| 6964 | } |
| 6965 | |
| 6966 | SmallString<128> TocFilename; |
| 6967 | std::error_code TocEC = |
| 6968 | sys::fs::createTemporaryFile("llvm-objdump", "toc", TocFilename); |
| 6969 | if (TocEC) { |
| 6970 | WithColor::error(errs(), "llvm-objdump") << TocEC.message() << "\n"; |
| 6971 | return; |
| 6972 | } |
| 6973 | xar_serialize(xar, TocFilename.c_str()); |
| 6974 | |
| 6975 | if (PrintXarFileHeaders) { |
| 6976 | if (!XarMemberName.empty()) |
| 6977 | outs() << "In xar member " << XarMemberName << ": "; |
| 6978 | else |
| 6979 | outs() << "For (__LLVM,__bundle) section: "; |
| 6980 | outs() << "xar archive files:\n"; |
| 6981 | PrintXarFilesSummary(XarFilename.c_str(), xar); |
| 6982 | } |
| 6983 | |
| 6984 | ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
| 6985 | MemoryBuffer::getFileOrSTDIN(TocFilename.c_str()); |
| 6986 | if (std::error_code EC = FileOrErr.getError()) { |
| 6987 | WithColor::error(errs(), "llvm-objdump") << EC.message() << "\n"; |
| 6988 | return; |
| 6989 | } |
| 6990 | std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get(); |
| 6991 | |
| 6992 | if (!XarMemberName.empty()) |
| 6993 | outs() << "In xar member " << XarMemberName << ": "; |
| 6994 | else |
| 6995 | outs() << "For (__LLVM,__bundle) section: "; |
| 6996 | outs() << "xar table of contents:\n"; |
| 6997 | outs() << Buffer->getBuffer() << "\n"; |
| 6998 | |
| 6999 | // TODO: Go through the xar's files. |
| 7000 | ScopedXarIter xi; |
| 7001 | if(!xi){ |
| 7002 | WithColor::error(errs(), "llvm-objdump") |
| 7003 | << "can't obtain an xar iterator for xar archive " |
| 7004 | << XarFilename.c_str() << "\n"; |
| 7005 | return; |
| 7006 | } |
| 7007 | for(xar_file_t xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)){ |
| 7008 | const char *key; |
| 7009 | const char *member_name, *member_type, *member_size_string; |
| 7010 | size_t member_size; |
| 7011 | |
| 7012 | ScopedXarIter xp; |
| 7013 | if(!xp){ |
| 7014 | WithColor::error(errs(), "llvm-objdump") |
| 7015 | << "can't obtain an xar iterator for xar archive " |
| 7016 | << XarFilename.c_str() << "\n"; |
| 7017 | return; |
| 7018 | } |
| 7019 | member_name = NULL__null; |
| 7020 | member_type = NULL__null; |
| 7021 | member_size_string = NULL__null; |
| 7022 | for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ |
| 7023 | const char *val = nullptr; |
| 7024 | xar_prop_get(xf, key, &val); |
| 7025 | #if 0 // Useful for debugging. |
| 7026 | outs() << "key: " << key << " value: " << val << "\n"; |
| 7027 | #endif |
| 7028 | if (strcmp(key, "name") == 0) |
| 7029 | member_name = val; |
| 7030 | if (strcmp(key, "type") == 0) |
| 7031 | member_type = val; |
| 7032 | if (strcmp(key, "data/size") == 0) |
| 7033 | member_size_string = val; |
| 7034 | } |
| 7035 | /* |
| 7036 | * If we find a file with a name, date/size and type properties |
| 7037 | * and with the type being "file" see if that is a xar file. |
| 7038 | */ |
| 7039 | if (member_name != NULL__null && member_type != NULL__null && |
| 7040 | strcmp(member_type, "file") == 0 && |
| 7041 | member_size_string != NULL__null){ |
| 7042 | // Extract the file into a buffer. |
| 7043 | char *endptr; |
| 7044 | member_size = strtoul(member_size_string, &endptr, 10); |
| 7045 | if (*endptr == '\0' && member_size != 0) { |
| 7046 | char *buffer; |
| 7047 | if (xar_extract_tobuffersz(xar, xf, &buffer, &member_size) == 0) { |
| 7048 | #if 0 // Useful for debugging. |
| 7049 | outs() << "xar member: " << member_name << " extracted\n"; |
| 7050 | #endif |
| 7051 | // Set the XarMemberName we want to see printed in the header. |
| 7052 | std::string OldXarMemberName; |
| 7053 | // If XarMemberName is already set this is nested. So |
| 7054 | // save the old name and create the nested name. |
| 7055 | if (!XarMemberName.empty()) { |
| 7056 | OldXarMemberName = XarMemberName; |
| 7057 | XarMemberName = |
| 7058 | (Twine("[") + XarMemberName + "]" + member_name).str(); |
| 7059 | } else { |
| 7060 | OldXarMemberName = ""; |
| 7061 | XarMemberName = member_name; |
| 7062 | } |
| 7063 | // See if this is could be a xar file (nested). |
| 7064 | if (member_size >= sizeof(struct xar_header)) { |
| 7065 | #if 0 // Useful for debugging. |
| 7066 | outs() << "could be a xar file: " << member_name << "\n"; |
| 7067 | #endif |
| 7068 | memcpy((char *)&XarHeader, buffer, sizeof(struct xar_header)); |
| 7069 | if (sys::IsLittleEndianHost) |
| 7070 | swapStruct(XarHeader); |
| 7071 | if (XarHeader.magic == XAR_HEADER_MAGIC) |
| 7072 | DumpBitcodeSection(O, buffer, member_size, verbose, |
| 7073 | PrintXarHeader, PrintXarFileHeaders, |
| 7074 | XarMemberName); |
| 7075 | } |
| 7076 | XarMemberName = OldXarMemberName; |
| 7077 | delete buffer; |
| 7078 | } |
| 7079 | } |
| 7080 | } |
| 7081 | } |
| 7082 | } |
| 7083 | #endif // defined(LLVM_HAVE_LIBXAR) |
| 7084 | |
| 7085 | static void printObjcMetaData(MachOObjectFile *O, bool verbose) { |
| 7086 | if (O->is64Bit()) |
| 7087 | printObjc2_64bit_MetaData(O, verbose); |
| 7088 | else { |
| 7089 | MachO::mach_header H; |
| 7090 | H = O->getHeader(); |
| 7091 | if (H.cputype == MachO::CPU_TYPE_ARM) |
| 7092 | printObjc2_32bit_MetaData(O, verbose); |
| 7093 | else { |
| 7094 | // This is the 32-bit non-arm cputype case. Which is normally |
| 7095 | // the first Objective-C ABI. But it may be the case of a |
| 7096 | // binary for the iOS simulator which is the second Objective-C |
| 7097 | // ABI. In that case printObjc1_32bit_MetaData() will determine that |
| 7098 | // and return false. |
| 7099 | if (!printObjc1_32bit_MetaData(O, verbose)) |
| 7100 | printObjc2_32bit_MetaData(O, verbose); |
| 7101 | } |
| 7102 | } |
| 7103 | } |
| 7104 | |
| 7105 | // GuessLiteralPointer returns a string which for the item in the Mach-O file |
| 7106 | // for the address passed in as ReferenceValue for printing as a comment with |
| 7107 | // the instruction and also returns the corresponding type of that item |
| 7108 | // indirectly through ReferenceType. |
| 7109 | // |
| 7110 | // If ReferenceValue is an address of literal cstring then a pointer to the |
| 7111 | // cstring is returned and ReferenceType is set to |
| 7112 | // LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr . |
| 7113 | // |
| 7114 | // If ReferenceValue is an address of an Objective-C CFString, Selector ref or |
| 7115 | // Class ref that name is returned and the ReferenceType is set accordingly. |
| 7116 | // |
| 7117 | // Lastly, literals which are Symbol address in a literal pool are looked for |
| 7118 | // and if found the symbol name is returned and ReferenceType is set to |
| 7119 | // LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr . |
| 7120 | // |
| 7121 | // If there is no item in the Mach-O file for the address passed in as |
| 7122 | // ReferenceValue nullptr is returned and ReferenceType is unchanged. |
| 7123 | static const char *GuessLiteralPointer(uint64_t ReferenceValue, |
| 7124 | uint64_t ReferencePC, |
| 7125 | uint64_t *ReferenceType, |
| 7126 | struct DisassembleInfo *info) { |
| 7127 | // First see if there is an external relocation entry at the ReferencePC. |
| 7128 | if (info->O->getHeader().filetype == MachO::MH_OBJECT) { |
| 7129 | uint64_t sect_addr = info->S.getAddress(); |
| 7130 | uint64_t sect_offset = ReferencePC - sect_addr; |
| 7131 | bool reloc_found = false; |
| 7132 | DataRefImpl Rel; |
| 7133 | MachO::any_relocation_info RE; |
| 7134 | bool isExtern = false; |
| 7135 | SymbolRef Symbol; |
| 7136 | for (const RelocationRef &Reloc : info->S.relocations()) { |
| 7137 | uint64_t RelocOffset = Reloc.getOffset(); |
| 7138 | if (RelocOffset == sect_offset) { |
| 7139 | Rel = Reloc.getRawDataRefImpl(); |
| 7140 | RE = info->O->getRelocation(Rel); |
| 7141 | if (info->O->isRelocationScattered(RE)) |
| 7142 | continue; |
| 7143 | isExtern = info->O->getPlainRelocationExternal(RE); |
| 7144 | if (isExtern) { |
| 7145 | symbol_iterator RelocSym = Reloc.getSymbol(); |
| 7146 | Symbol = *RelocSym; |
| 7147 | } |
| 7148 | reloc_found = true; |
| 7149 | break; |
| 7150 | } |
| 7151 | } |
| 7152 | // If there is an external relocation entry for a symbol in a section |
| 7153 | // then used that symbol's value for the value of the reference. |
| 7154 | if (reloc_found && isExtern) { |
| 7155 | if (info->O->getAnyRelocationPCRel(RE)) { |
| 7156 | unsigned Type = info->O->getAnyRelocationType(RE); |
| 7157 | if (Type == MachO::X86_64_RELOC_SIGNED) { |
| 7158 | ReferenceValue = cantFail(Symbol.getValue()); |
| 7159 | } |
| 7160 | } |
| 7161 | } |
| 7162 | } |
| 7163 | |
| 7164 | // Look for literals such as Objective-C CFStrings refs, Selector refs, |
| 7165 | // Message refs and Class refs. |
| 7166 | bool classref, selref, msgref, cfstring; |
| 7167 | uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref, |
| 7168 | selref, msgref, cfstring); |
| 7169 | if (classref && pointer_value == 0) { |
| 7170 | // Note the ReferenceValue is a pointer into the __objc_classrefs section. |
| 7171 | // And the pointer_value in that section is typically zero as it will be |
| 7172 | // set by dyld as part of the "bind information". |
| 7173 | const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info); |
| 7174 | if (name != nullptr) { |
| 7175 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref8; |
| 7176 | const char *class_name = strrchr(name, '$'); |
| 7177 | if (class_name != nullptr && class_name[1] == '_' && |
| 7178 | class_name[2] != '\0') { |
| 7179 | info->class_name = class_name + 2; |
| 7180 | return name; |
| 7181 | } |
| 7182 | } |
| 7183 | } |
| 7184 | |
| 7185 | if (classref) { |
| 7186 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref8; |
| 7187 | const char *name = |
| 7188 | get_objc2_64bit_class_name(pointer_value, ReferenceValue, info); |
| 7189 | if (name != nullptr) |
| 7190 | info->class_name = name; |
| 7191 | else |
| 7192 | name = "bad class ref"; |
| 7193 | return name; |
| 7194 | } |
| 7195 | |
| 7196 | if (cfstring) { |
| 7197 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref4; |
| 7198 | const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info); |
| 7199 | return name; |
| 7200 | } |
| 7201 | |
| 7202 | if (selref && pointer_value == 0) |
| 7203 | pointer_value = get_objc2_64bit_selref(ReferenceValue, info); |
| 7204 | |
| 7205 | if (pointer_value != 0) |
| 7206 | ReferenceValue = pointer_value; |
| 7207 | |
| 7208 | const char *name = GuessCstringPointer(ReferenceValue, info); |
| 7209 | if (name) { |
| 7210 | if (pointer_value != 0 && selref) { |
| 7211 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref7; |
| 7212 | info->selector_name = name; |
| 7213 | } else if (pointer_value != 0 && msgref) { |
| 7214 | info->class_name = nullptr; |
| 7215 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref6; |
| 7216 | info->selector_name = name; |
| 7217 | } else |
| 7218 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr3; |
| 7219 | return name; |
| 7220 | } |
| 7221 | |
| 7222 | // Lastly look for an indirect symbol with this ReferenceValue which is in |
| 7223 | // a literal pool. If found return that symbol name. |
| 7224 | name = GuessIndirectSymbol(ReferenceValue, info); |
| 7225 | if (name) { |
| 7226 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr2; |
| 7227 | return name; |
| 7228 | } |
| 7229 | |
| 7230 | return nullptr; |
| 7231 | } |
| 7232 | |
| 7233 | // SymbolizerSymbolLookUp is the symbol lookup function passed when creating |
| 7234 | // the Symbolizer. It looks up the ReferenceValue using the info passed via the |
| 7235 | // pointer to the struct DisassembleInfo that was passed when MCSymbolizer |
| 7236 | // is created and returns the symbol name that matches the ReferenceValue or |
| 7237 | // nullptr if none. The ReferenceType is passed in for the IN type of |
| 7238 | // reference the instruction is making from the values in defined in the header |
| 7239 | // "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific |
| 7240 | // Out type and the ReferenceName will also be set which is added as a comment |
| 7241 | // to the disassembled instruction. |
| 7242 | // |
| 7243 | // If the symbol name is a C++ mangled name then the demangled name is |
| 7244 | // returned through ReferenceName and ReferenceType is set to |
| 7245 | // LLVMDisassembler_ReferenceType_DeMangled_Name . |
| 7246 | // |
| 7247 | // When this is called to get a symbol name for a branch target then the |
| 7248 | // ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then |
| 7249 | // SymbolValue will be looked for in the indirect symbol table to determine if |
| 7250 | // it is an address for a symbol stub. If so then the symbol name for that |
| 7251 | // stub is returned indirectly through ReferenceName and then ReferenceType is |
| 7252 | // set to LLVMDisassembler_ReferenceType_Out_SymbolStub. |
| 7253 | // |
| 7254 | // When this is called with an value loaded via a PC relative load then |
| 7255 | // ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the |
| 7256 | // SymbolValue is checked to be an address of literal pointer, symbol pointer, |
| 7257 | // or an Objective-C meta data reference. If so the output ReferenceType is |
| 7258 | // set to correspond to that as well as setting the ReferenceName. |
| 7259 | static const char *SymbolizerSymbolLookUp(void *DisInfo, |
| 7260 | uint64_t ReferenceValue, |
| 7261 | uint64_t *ReferenceType, |
| 7262 | uint64_t ReferencePC, |
| 7263 | const char **ReferenceName) { |
| 7264 | struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; |
| 7265 | // If no verbose symbolic information is wanted then just return nullptr. |
| 7266 | if (!info->verbose) { |
| 7267 | *ReferenceName = nullptr; |
| 7268 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7269 | return nullptr; |
| 7270 | } |
| 7271 | |
| 7272 | const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); |
| 7273 | |
| 7274 | if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch1) { |
| 7275 | *ReferenceName = GuessIndirectSymbol(ReferenceValue, info); |
| 7276 | if (*ReferenceName != nullptr) { |
| 7277 | method_reference(info, ReferenceType, ReferenceName); |
| 7278 | if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message5) |
| 7279 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub1; |
| 7280 | } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { |
| 7281 | if (info->demangled_name != nullptr) |
| 7282 | free(info->demangled_name); |
| 7283 | info->demangled_name = itaniumDemangle(SymbolName + 1); |
| 7284 | if (info->demangled_name != nullptr) { |
| 7285 | *ReferenceName = info->demangled_name; |
| 7286 | *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name9; |
| 7287 | } else |
| 7288 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7289 | } else |
| 7290 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7291 | } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load2) { |
| 7292 | *ReferenceName = |
| 7293 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
| 7294 | if (*ReferenceName) |
| 7295 | method_reference(info, ReferenceType, ReferenceName); |
| 7296 | else |
| 7297 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7298 | // If this is arm64 and the reference is an adrp instruction save the |
| 7299 | // instruction, passed in ReferenceValue and the address of the instruction |
| 7300 | // for use later if we see and add immediate instruction. |
| 7301 | } else if (info->O->getArch() == Triple::aarch64 && |
| 7302 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP0x100000001) { |
| 7303 | info->adrp_inst = ReferenceValue; |
| 7304 | info->adrp_addr = ReferencePC; |
| 7305 | SymbolName = nullptr; |
| 7306 | *ReferenceName = nullptr; |
| 7307 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7308 | // If this is arm64 and reference is an add immediate instruction and we |
| 7309 | // have |
| 7310 | // seen an adrp instruction just before it and the adrp's Xd register |
| 7311 | // matches |
| 7312 | // this add's Xn register reconstruct the value being referenced and look to |
| 7313 | // see if it is a literal pointer. Note the add immediate instruction is |
| 7314 | // passed in ReferenceValue. |
| 7315 | } else if (info->O->getArch() == Triple::aarch64 && |
| 7316 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri0x100000002 && |
| 7317 | ReferencePC - 4 == info->adrp_addr && |
| 7318 | (info->adrp_inst & 0x9f000000) == 0x90000000 && |
| 7319 | (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { |
| 7320 | uint32_t addxri_inst; |
| 7321 | uint64_t adrp_imm, addxri_imm; |
| 7322 | |
| 7323 | adrp_imm = |
| 7324 | ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); |
| 7325 | if (info->adrp_inst & 0x0200000) |
| 7326 | adrp_imm |= 0xfffffffffc000000LL; |
| 7327 | |
| 7328 | addxri_inst = ReferenceValue; |
| 7329 | addxri_imm = (addxri_inst >> 10) & 0xfff; |
| 7330 | if (((addxri_inst >> 22) & 0x3) == 1) |
| 7331 | addxri_imm <<= 12; |
| 7332 | |
| 7333 | ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + |
| 7334 | (adrp_imm << 12) + addxri_imm; |
| 7335 | |
| 7336 | *ReferenceName = |
| 7337 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
| 7338 | if (*ReferenceName == nullptr) |
| 7339 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7340 | // If this is arm64 and the reference is a load register instruction and we |
| 7341 | // have seen an adrp instruction just before it and the adrp's Xd register |
| 7342 | // matches this add's Xn register reconstruct the value being referenced and |
| 7343 | // look to see if it is a literal pointer. Note the load register |
| 7344 | // instruction is passed in ReferenceValue. |
| 7345 | } else if (info->O->getArch() == Triple::aarch64 && |
| 7346 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui0x100000003 && |
| 7347 | ReferencePC - 4 == info->adrp_addr && |
| 7348 | (info->adrp_inst & 0x9f000000) == 0x90000000 && |
| 7349 | (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { |
| 7350 | uint32_t ldrxui_inst; |
| 7351 | uint64_t adrp_imm, ldrxui_imm; |
| 7352 | |
| 7353 | adrp_imm = |
| 7354 | ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); |
| 7355 | if (info->adrp_inst & 0x0200000) |
| 7356 | adrp_imm |= 0xfffffffffc000000LL; |
| 7357 | |
| 7358 | ldrxui_inst = ReferenceValue; |
| 7359 | ldrxui_imm = (ldrxui_inst >> 10) & 0xfff; |
| 7360 | |
| 7361 | ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + |
| 7362 | (adrp_imm << 12) + (ldrxui_imm << 3); |
| 7363 | |
| 7364 | *ReferenceName = |
| 7365 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
| 7366 | if (*ReferenceName == nullptr) |
| 7367 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7368 | } |
| 7369 | // If this arm64 and is an load register (PC-relative) instruction the |
| 7370 | // ReferenceValue is the PC plus the immediate value. |
| 7371 | else if (info->O->getArch() == Triple::aarch64 && |
| 7372 | (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl0x100000004 || |
| 7373 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR0x100000005)) { |
| 7374 | *ReferenceName = |
| 7375 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
| 7376 | if (*ReferenceName == nullptr) |
| 7377 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7378 | } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { |
| 7379 | if (info->demangled_name != nullptr) |
| 7380 | free(info->demangled_name); |
| 7381 | info->demangled_name = itaniumDemangle(SymbolName + 1); |
| 7382 | if (info->demangled_name != nullptr) { |
| 7383 | *ReferenceName = info->demangled_name; |
| 7384 | *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name9; |
| 7385 | } |
| 7386 | } |
| 7387 | else { |
| 7388 | *ReferenceName = nullptr; |
| 7389 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
| 7390 | } |
| 7391 | |
| 7392 | return SymbolName; |
| 7393 | } |
| 7394 | |
| 7395 | /// Emits the comments that are stored in the CommentStream. |
| 7396 | /// Each comment in the CommentStream must end with a newline. |
| 7397 | static void emitComments(raw_svector_ostream &CommentStream, |
| 7398 | SmallString<128> &CommentsToEmit, |
| 7399 | formatted_raw_ostream &FormattedOS, |
| 7400 | const MCAsmInfo &MAI) { |
| 7401 | // Flush the stream before taking its content. |
| 7402 | StringRef Comments = CommentsToEmit.str(); |
| 7403 | // Get the default information for printing a comment. |
| 7404 | StringRef CommentBegin = MAI.getCommentString(); |
| 7405 | unsigned CommentColumn = MAI.getCommentColumn(); |
| 7406 | ListSeparator LS("\n"); |
| 7407 | while (!Comments.empty()) { |
| 7408 | FormattedOS << LS; |
| 7409 | // Emit a line of comments. |
| 7410 | FormattedOS.PadToColumn(CommentColumn); |
| 7411 | size_t Position = Comments.find('\n'); |
| 7412 | FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position); |
| 7413 | // Move after the newline character. |
| 7414 | Comments = Comments.substr(Position + 1); |
| 7415 | } |
| 7416 | FormattedOS.flush(); |
| 7417 | |
| 7418 | // Tell the comment stream that the vector changed underneath it. |
| 7419 | CommentsToEmit.clear(); |
| 7420 | } |
| 7421 | |
| 7422 | const MachOObjectFile * |
| 7423 | objdump::getMachODSymObject(const MachOObjectFile *MachOOF, StringRef Filename, |
| 7424 | std::unique_ptr<Binary> &DSYMBinary, |
| 7425 | std::unique_ptr<MemoryBuffer> &DSYMBuf) { |
| 7426 | const MachOObjectFile *DbgObj = MachOOF; |
| 7427 | std::string DSYMPath; |
| 7428 | |
| 7429 | // Auto-detect w/o --dsym. |
| 7430 | if (DSYMFile.empty()) { |
| 7431 | sys::fs::file_status DSYMStatus; |
| 7432 | Twine FilenameDSYM = Filename + ".dSYM"; |
| 7433 | if (!status(FilenameDSYM, DSYMStatus)) { |
| 7434 | if (sys::fs::is_directory(DSYMStatus)) { |
| 7435 | SmallString<1024> Path; |
| 7436 | FilenameDSYM.toVector(Path); |
| 7437 | sys::path::append(Path, "Contents", "Resources", "DWARF", |
| 7438 | sys::path::filename(Filename)); |
| 7439 | DSYMPath = std::string(Path); |
| 7440 | } else if (sys::fs::is_regular_file(DSYMStatus)) { |
| 7441 | DSYMPath = FilenameDSYM.str(); |
| 7442 | } |
| 7443 | } |
| 7444 | } |
| 7445 | |
| 7446 | if (DSYMPath.empty() && !DSYMFile.empty()) { |
| 7447 | // If DSYMPath is a .dSYM directory, append the Mach-O file. |
| 7448 | if (sys::fs::is_directory(DSYMFile) && |
| 7449 | sys::path::extension(DSYMFile) == ".dSYM") { |
| 7450 | SmallString<128> ShortName(sys::path::filename(DSYMFile)); |
| 7451 | sys::path::replace_extension(ShortName, ""); |
| 7452 | SmallString<1024> FullPath(DSYMFile); |
| 7453 | sys::path::append(FullPath, "Contents", "Resources", "DWARF", ShortName); |
| 7454 | DSYMPath = FullPath.str(); |
| 7455 | } else { |
| 7456 | DSYMPath = DSYMFile; |
| 7457 | } |
| 7458 | } |
| 7459 | |
| 7460 | if (!DSYMPath.empty()) { |
| 7461 | // Load the file. |
| 7462 | ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr = |
| 7463 | MemoryBuffer::getFileOrSTDIN(DSYMPath); |
| 7464 | if (std::error_code EC = BufOrErr.getError()) { |
| 7465 | reportError(errorCodeToError(EC), DSYMPath); |
| 7466 | return nullptr; |
| 7467 | } |
| 7468 | |
| 7469 | // We need to keep the file alive, because we're replacing DbgObj with it. |
| 7470 | DSYMBuf = std::move(BufOrErr.get()); |
| 7471 | |
| 7472 | Expected<std::unique_ptr<Binary>> BinaryOrErr = |
| 7473 | createBinary(DSYMBuf.get()->getMemBufferRef()); |
| 7474 | if (!BinaryOrErr) { |
| 7475 | reportError(BinaryOrErr.takeError(), DSYMPath); |
| 7476 | return nullptr; |
| 7477 | } |
| 7478 | |
| 7479 | // We need to keep the Binary alive with the buffer |
| 7480 | DSYMBinary = std::move(BinaryOrErr.get()); |
| 7481 | if (ObjectFile *O = dyn_cast<ObjectFile>(DSYMBinary.get())) { |
| 7482 | // this is a Mach-O object file, use it |
| 7483 | if (MachOObjectFile *MachDSYM = dyn_cast<MachOObjectFile>(&*O)) { |
| 7484 | DbgObj = MachDSYM; |
| 7485 | } else { |
| 7486 | WithColor::error(errs(), "llvm-objdump") |
| 7487 | << DSYMPath << " is not a Mach-O file type.\n"; |
| 7488 | return nullptr; |
| 7489 | } |
| 7490 | } else if (auto *UB = dyn_cast<MachOUniversalBinary>(DSYMBinary.get())) { |
| 7491 | // this is a Universal Binary, find a Mach-O for this architecture |
| 7492 | uint32_t CPUType, CPUSubType; |
| 7493 | const char *ArchFlag; |
| 7494 | if (MachOOF->is64Bit()) { |
| 7495 | const MachO::mach_header_64 H_64 = MachOOF->getHeader64(); |
| 7496 | CPUType = H_64.cputype; |
| 7497 | CPUSubType = H_64.cpusubtype; |
| 7498 | } else { |
| 7499 | const MachO::mach_header H = MachOOF->getHeader(); |
| 7500 | CPUType = H.cputype; |
| 7501 | CPUSubType = H.cpusubtype; |
| 7502 | } |
| 7503 | Triple T = MachOObjectFile::getArchTriple(CPUType, CPUSubType, nullptr, |
| 7504 | &ArchFlag); |
| 7505 | Expected<std::unique_ptr<MachOObjectFile>> MachDSYM = |
| 7506 | UB->getMachOObjectForArch(ArchFlag); |
| 7507 | if (!MachDSYM) { |
| 7508 | reportError(MachDSYM.takeError(), DSYMPath); |
| 7509 | return nullptr; |
| 7510 | } |
| 7511 | |
| 7512 | // We need to keep the Binary alive with the buffer |
| 7513 | DbgObj = &*MachDSYM.get(); |
| 7514 | DSYMBinary = std::move(*MachDSYM); |
| 7515 | } else { |
| 7516 | WithColor::error(errs(), "llvm-objdump") |
| 7517 | << DSYMPath << " is not a Mach-O or Universal file type.\n"; |
| 7518 | return nullptr; |
| 7519 | } |
| 7520 | } |
| 7521 | return DbgObj; |
| 7522 | } |
| 7523 | |
| 7524 | static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, |
| 7525 | StringRef DisSegName, StringRef DisSectName) { |
| 7526 | const char *McpuDefault = nullptr; |
| 7527 | const Target *ThumbTarget = nullptr; |
| 7528 | const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget); |
| 7529 | if (!TheTarget) { |
| 7530 | // GetTarget prints out stuff. |
| 7531 | return; |
| 7532 | } |
| 7533 | std::string MachOMCPU; |
| 7534 | if (MCPU.empty() && McpuDefault) |
| 7535 | MachOMCPU = McpuDefault; |
| 7536 | else |
| 7537 | MachOMCPU = MCPU; |
| 7538 | |
| 7539 | #define CHECK_TARGET_INFO_CREATION(NAME) \ |
| 7540 | do { \ |
| 7541 | if (!NAME) { \ |
| 7542 | WithColor::error(errs(), "llvm-objdump") \ |
| 7543 | << "couldn't initialize disassembler for target " << TripleName \ |
| 7544 | << '\n'; \ |
| 7545 | return; \ |
| 7546 | } \ |
| 7547 | } while (false) |
| 7548 | #define CHECK_THUMB_TARGET_INFO_CREATION(NAME) \ |
| 7549 | do { \ |
| 7550 | if (!NAME) { \ |
| 7551 | WithColor::error(errs(), "llvm-objdump") \ |
| 7552 | << "couldn't initialize disassembler for target " << ThumbTripleName \ |
| 7553 | << '\n'; \ |
| 7554 | return; \ |
| 7555 | } \ |
| 7556 | } while (false) |
| 7557 | |
| 7558 | std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); |
| 7559 | CHECK_TARGET_INFO_CREATION(InstrInfo); |
| 7560 | std::unique_ptr<const MCInstrInfo> ThumbInstrInfo; |
| 7561 | if (ThumbTarget) { |
| 7562 | ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo()); |
| 7563 | CHECK_THUMB_TARGET_INFO_CREATION(ThumbInstrInfo); |
| 7564 | } |
| 7565 | |
| 7566 | // Package up features to be passed to target/subtarget |
| 7567 | std::string FeaturesStr; |
| 7568 | if (!MAttrs.empty()) { |
| 7569 | SubtargetFeatures Features; |
| 7570 | for (unsigned i = 0; i != MAttrs.size(); ++i) |
| 7571 | Features.AddFeature(MAttrs[i]); |
| 7572 | FeaturesStr = Features.getString(); |
| 7573 | } |
| 7574 | |
| 7575 | MCTargetOptions MCOptions; |
| 7576 | // Set up disassembler. |
| 7577 | std::unique_ptr<const MCRegisterInfo> MRI( |
| 7578 | TheTarget->createMCRegInfo(TripleName)); |
| 7579 | CHECK_TARGET_INFO_CREATION(MRI); |
| 7580 | std::unique_ptr<const MCAsmInfo> AsmInfo( |
| 7581 | TheTarget->createMCAsmInfo(*MRI, TripleName, MCOptions)); |
| 7582 | CHECK_TARGET_INFO_CREATION(AsmInfo); |
| 7583 | std::unique_ptr<const MCSubtargetInfo> STI( |
| 7584 | TheTarget->createMCSubtargetInfo(TripleName, MachOMCPU, FeaturesStr)); |
| 7585 | CHECK_TARGET_INFO_CREATION(STI); |
| 7586 | MCContext Ctx(Triple(TripleName), AsmInfo.get(), MRI.get(), STI.get()); |
| 7587 | std::unique_ptr<MCDisassembler> DisAsm( |
| 7588 | TheTarget->createMCDisassembler(*STI, Ctx)); |
| 7589 | CHECK_TARGET_INFO_CREATION(DisAsm); |
| 7590 | std::unique_ptr<MCSymbolizer> Symbolizer; |
| 7591 | struct DisassembleInfo SymbolizerInfo(nullptr, nullptr, nullptr, false); |
| 7592 | std::unique_ptr<MCRelocationInfo> RelInfo( |
| 7593 | TheTarget->createMCRelocationInfo(TripleName, Ctx)); |
| 7594 | if (RelInfo) { |
| 7595 | Symbolizer.reset(TheTarget->createMCSymbolizer( |
| 7596 | TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, |
| 7597 | &SymbolizerInfo, &Ctx, std::move(RelInfo))); |
| 7598 | DisAsm->setSymbolizer(std::move(Symbolizer)); |
| 7599 | } |
| 7600 | int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); |
| 7601 | std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( |
| 7602 | Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI)); |
| 7603 | CHECK_TARGET_INFO_CREATION(IP); |
| 7604 | // Set the display preference for hex vs. decimal immediates. |
| 7605 | IP->setPrintImmHex(PrintImmHex); |
| 7606 | // Comment stream and backing vector. |
| 7607 | SmallString<128> CommentsToEmit; |
| 7608 | raw_svector_ostream CommentStream(CommentsToEmit); |
| 7609 | // FIXME: Setting the CommentStream in the InstPrinter is problematic in that |
| 7610 | // if it is done then arm64 comments for string literals don't get printed |
| 7611 | // and some constant get printed instead and not setting it causes intel |
| 7612 | // (32-bit and 64-bit) comments printed with different spacing before the |
| 7613 | // comment causing different diffs with the 'C' disassembler library API. |
| 7614 | // IP->setCommentStream(CommentStream); |
| 7615 | |
| 7616 | // Set up separate thumb disassembler if needed. |
| 7617 | std::unique_ptr<const MCRegisterInfo> ThumbMRI; |
| 7618 | std::unique_ptr<const MCAsmInfo> ThumbAsmInfo; |
| 7619 | std::unique_ptr<const MCSubtargetInfo> ThumbSTI; |
| 7620 | std::unique_ptr<MCDisassembler> ThumbDisAsm; |
| 7621 | std::unique_ptr<MCInstPrinter> ThumbIP; |
| 7622 | std::unique_ptr<MCContext> ThumbCtx; |
| 7623 | std::unique_ptr<MCSymbolizer> ThumbSymbolizer; |
| 7624 | struct DisassembleInfo ThumbSymbolizerInfo(nullptr, nullptr, nullptr, false); |
| 7625 | std::unique_ptr<MCRelocationInfo> ThumbRelInfo; |
| 7626 | if (ThumbTarget) { |
| 7627 | ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName)); |
| 7628 | CHECK_THUMB_TARGET_INFO_CREATION(ThumbMRI); |
| 7629 | ThumbAsmInfo.reset( |
| 7630 | ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName, MCOptions)); |
| 7631 | CHECK_THUMB_TARGET_INFO_CREATION(ThumbAsmInfo); |
| 7632 | ThumbSTI.reset( |
| 7633 | ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MachOMCPU, |
| 7634 | FeaturesStr)); |
| 7635 | CHECK_THUMB_TARGET_INFO_CREATION(ThumbSTI); |
| 7636 | ThumbCtx.reset(new MCContext(Triple(ThumbTripleName), ThumbAsmInfo.get(), |
| 7637 | ThumbMRI.get(), ThumbSTI.get())); |
| 7638 | ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx)); |
| 7639 | CHECK_THUMB_TARGET_INFO_CREATION(ThumbDisAsm); |
| 7640 | MCContext *PtrThumbCtx = ThumbCtx.get(); |
| 7641 | ThumbRelInfo.reset( |
| 7642 | ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx)); |
| 7643 | if (ThumbRelInfo) { |
| 7644 | ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer( |
| 7645 | ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, |
| 7646 | &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo))); |
| 7647 | ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer)); |
| 7648 | } |
| 7649 | int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect(); |
| 7650 | ThumbIP.reset(ThumbTarget->createMCInstPrinter( |
| 7651 | Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo, |
| 7652 | *ThumbInstrInfo, *ThumbMRI)); |
| 7653 | CHECK_THUMB_TARGET_INFO_CREATION(ThumbIP); |
| 7654 | // Set the display preference for hex vs. decimal immediates. |
| 7655 | ThumbIP->setPrintImmHex(PrintImmHex); |
| 7656 | } |
| 7657 | |
| 7658 | #undef CHECK_TARGET_INFO_CREATION |
| 7659 | #undef CHECK_THUMB_TARGET_INFO_CREATION |
| 7660 | |
| 7661 | MachO::mach_header Header = MachOOF->getHeader(); |
| 7662 | |
| 7663 | // FIXME: Using the -cfg command line option, this code used to be able to |
| 7664 | // annotate relocations with the referenced symbol's name, and if this was |
| 7665 | // inside a __[cf]string section, the data it points to. This is now replaced |
| 7666 | // by the upcoming MCSymbolizer, which needs the appropriate setup done above. |
| 7667 | std::vector<SectionRef> Sections; |
| 7668 | std::vector<SymbolRef> Symbols; |
| 7669 | SmallVector<uint64_t, 8> FoundFns; |
| 7670 | uint64_t BaseSegmentAddress = 0; |
| 7671 | |
| 7672 | getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns, |
| 7673 | BaseSegmentAddress); |
| 7674 | |
| 7675 | // Sort the symbols by address, just in case they didn't come in that way. |
| 7676 | llvm::stable_sort(Symbols, SymbolSorter()); |
| 7677 | |
| 7678 | // Build a data in code table that is sorted on by the address of each entry. |
| 7679 | uint64_t BaseAddress = 0; |
| 7680 | if (Header.filetype == MachO::MH_OBJECT) |
| 7681 | BaseAddress = Sections[0].getAddress(); |
| 7682 | else |
| 7683 | BaseAddress = BaseSegmentAddress; |
| 7684 | DiceTable Dices; |
| 7685 | for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices(); |
| 7686 | DI != DE; ++DI) { |
| 7687 | uint32_t Offset; |
| 7688 | DI->getOffset(Offset); |
| 7689 | Dices.push_back(std::make_pair(BaseAddress + Offset, *DI)); |
| 7690 | } |
| 7691 | array_pod_sort(Dices.begin(), Dices.end()); |
| 7692 | |
| 7693 | // Try to find debug info and set up the DIContext for it. |
| 7694 | std::unique_ptr<DIContext> diContext; |
| 7695 | std::unique_ptr<Binary> DSYMBinary; |
| 7696 | std::unique_ptr<MemoryBuffer> DSYMBuf; |
| 7697 | if (UseDbg) { |
| 7698 | // If separate DSym file path was specified, parse it as a macho file, |
| 7699 | // get the sections and supply it to the section name parsing machinery. |
| 7700 | if (const ObjectFile *DbgObj = |
| 7701 | getMachODSymObject(MachOOF, Filename, DSYMBinary, DSYMBuf)) { |
| 7702 | // Setup the DIContext |
| 7703 | diContext = DWARFContext::create(*DbgObj); |
| 7704 | } else { |
| 7705 | return; |
| 7706 | } |
| 7707 | } |
| 7708 | |
| 7709 | if (FilterSections.empty()) |
| 7710 | outs() << "(" << DisSegName << "," << DisSectName << ") section\n"; |
| 7711 | |
| 7712 | for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { |
| 7713 | Expected<StringRef> SecNameOrErr = Sections[SectIdx].getName(); |
| 7714 | if (!SecNameOrErr) { |
| 7715 | consumeError(SecNameOrErr.takeError()); |
| 7716 | continue; |
| 7717 | } |
| 7718 | if (*SecNameOrErr != DisSectName) |
| 7719 | continue; |
| 7720 | |
| 7721 | DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl(); |
| 7722 | |
| 7723 | StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR); |
| 7724 | if (SegmentName != DisSegName) |
| 7725 | continue; |
| 7726 | |
| 7727 | StringRef BytesStr = |
| 7728 | unwrapOrError(Sections[SectIdx].getContents(), Filename); |
| 7729 | ArrayRef<uint8_t> Bytes = arrayRefFromStringRef(BytesStr); |
| 7730 | uint64_t SectAddress = Sections[SectIdx].getAddress(); |
| 7731 | |
| 7732 | bool symbolTableWorked = false; |
| 7733 | |
| 7734 | // Create a map of symbol addresses to symbol names for use by |
| 7735 | // the SymbolizerSymbolLookUp() routine. |
| 7736 | SymbolAddressMap AddrMap; |
| 7737 | bool DisSymNameFound = false; |
| 7738 | for (const SymbolRef &Symbol : MachOOF->symbols()) { |
| 7739 | SymbolRef::Type ST = |
| 7740 | unwrapOrError(Symbol.getType(), MachOOF->getFileName()); |
| 7741 | if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || |
| 7742 | ST == SymbolRef::ST_Other) { |
| 7743 | uint64_t Address = cantFail(Symbol.getValue()); |
| 7744 | StringRef SymName = |
| 7745 | unwrapOrError(Symbol.getName(), MachOOF->getFileName()); |
| 7746 | AddrMap[Address] = SymName; |
| 7747 | if (!DisSymName.empty() && DisSymName == SymName) |
| 7748 | DisSymNameFound = true; |
| 7749 | } |
| 7750 | } |
| 7751 | if (!DisSymName.empty() && !DisSymNameFound) { |
| 7752 | outs() << "Can't find -dis-symname: " << DisSymName << "\n"; |
| 7753 | return; |
| 7754 | } |
| 7755 | // Set up the block of info used by the Symbolizer call backs. |
| 7756 | SymbolizerInfo.verbose = SymbolicOperands; |
| 7757 | SymbolizerInfo.O = MachOOF; |
| 7758 | SymbolizerInfo.S = Sections[SectIdx]; |
| 7759 | SymbolizerInfo.AddrMap = &AddrMap; |
| 7760 | SymbolizerInfo.Sections = &Sections; |
| 7761 | // Same for the ThumbSymbolizer |
| 7762 | ThumbSymbolizerInfo.verbose = SymbolicOperands; |
| 7763 | ThumbSymbolizerInfo.O = MachOOF; |
| 7764 | ThumbSymbolizerInfo.S = Sections[SectIdx]; |
| 7765 | ThumbSymbolizerInfo.AddrMap = &AddrMap; |
| 7766 | ThumbSymbolizerInfo.Sections = &Sections; |
| 7767 | |
| 7768 | unsigned int Arch = MachOOF->getArch(); |
| 7769 | |
| 7770 | // Skip all symbols if this is a stubs file. |
| 7771 | if (Bytes.empty()) |
| 7772 | return; |
| 7773 | |
| 7774 | // If the section has symbols but no symbol at the start of the section |
| 7775 | // these are used to make sure the bytes before the first symbol are |
| 7776 | // disassembled. |
| 7777 | bool FirstSymbol = true; |
| 7778 | bool FirstSymbolAtSectionStart = true; |
| 7779 | |
| 7780 | // Disassemble symbol by symbol. |
| 7781 | for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { |
| 7782 | StringRef SymName = |
| 7783 | unwrapOrError(Symbols[SymIdx].getName(), MachOOF->getFileName()); |
| 7784 | SymbolRef::Type ST = |
| 7785 | unwrapOrError(Symbols[SymIdx].getType(), MachOOF->getFileName()); |
| 7786 | if (ST != SymbolRef::ST_Function && ST != SymbolRef::ST_Data) |
| 7787 | continue; |
| 7788 | |
| 7789 | // Make sure the symbol is defined in this section. |
| 7790 | bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]); |
| 7791 | if (!containsSym) { |
| 7792 | if (!DisSymName.empty() && DisSymName == SymName) { |
| 7793 | outs() << "-dis-symname: " << DisSymName << " not in the section\n"; |
| 7794 | return; |
| 7795 | } |
| 7796 | continue; |
| 7797 | } |
| 7798 | // The __mh_execute_header is special and we need to deal with that fact |
| 7799 | // this symbol is before the start of the (__TEXT,__text) section and at the |
| 7800 | // address of the start of the __TEXT segment. This is because this symbol |
| 7801 | // is an N_SECT symbol in the (__TEXT,__text) but its address is before the |
| 7802 | // start of the section in a standard MH_EXECUTE filetype. |
| 7803 | if (!DisSymName.empty() && DisSymName == "__mh_execute_header") { |
| 7804 | outs() << "-dis-symname: __mh_execute_header not in any section\n"; |
| 7805 | return; |
| 7806 | } |
| 7807 | // When this code is trying to disassemble a symbol at a time and in the |
| 7808 | // case there is only the __mh_execute_header symbol left as in a stripped |
| 7809 | // executable, we need to deal with this by ignoring this symbol so the |
| 7810 | // whole section is disassembled and this symbol is then not displayed. |
| 7811 | if (SymName == "__mh_execute_header" || SymName == "__mh_dylib_header" || |
| 7812 | SymName == "__mh_bundle_header" || SymName == "__mh_object_header" || |
| 7813 | SymName == "__mh_preload_header" || SymName == "__mh_dylinker_header") |
| 7814 | continue; |
| 7815 | |
| 7816 | // If we are only disassembling one symbol see if this is that symbol. |
| 7817 | if (!DisSymName.empty() && DisSymName != SymName) |
| 7818 | continue; |
| 7819 | |
| 7820 | // Start at the address of the symbol relative to the section's address. |
| 7821 | uint64_t SectSize = Sections[SectIdx].getSize(); |
| 7822 | uint64_t Start = cantFail(Symbols[SymIdx].getValue()); |
| 7823 | uint64_t SectionAddress = Sections[SectIdx].getAddress(); |
| 7824 | Start -= SectionAddress; |
| 7825 | |
| 7826 | if (Start > SectSize) { |
| 7827 | outs() << "section data ends, " << SymName |
| 7828 | << " lies outside valid range\n"; |
| 7829 | return; |
| 7830 | } |
| 7831 | |
| 7832 | // Stop disassembling either at the beginning of the next symbol or at |
| 7833 | // the end of the section. |
| 7834 | bool containsNextSym = false; |
| 7835 | uint64_t NextSym = 0; |
| 7836 | uint64_t NextSymIdx = SymIdx + 1; |
| 7837 | while (Symbols.size() > NextSymIdx) { |
| 7838 | SymbolRef::Type NextSymType = unwrapOrError( |
| 7839 | Symbols[NextSymIdx].getType(), MachOOF->getFileName()); |
| 7840 | if (NextSymType == SymbolRef::ST_Function) { |
| 7841 | containsNextSym = |
| 7842 | Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]); |
| 7843 | NextSym = cantFail(Symbols[NextSymIdx].getValue()); |
| 7844 | NextSym -= SectionAddress; |
| 7845 | break; |
| 7846 | } |
| 7847 | ++NextSymIdx; |
| 7848 | } |
| 7849 | |
| 7850 | uint64_t End = containsNextSym ? std::min(NextSym, SectSize) : SectSize; |
| 7851 | uint64_t Size; |
| 7852 | |
| 7853 | symbolTableWorked = true; |
| 7854 | |
| 7855 | DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl(); |
| 7856 | uint32_t SymbolFlags = cantFail(MachOOF->getSymbolFlags(Symb)); |
| 7857 | bool IsThumb = SymbolFlags & SymbolRef::SF_Thumb; |
| 7858 | |
| 7859 | // We only need the dedicated Thumb target if there's a real choice |
| 7860 | // (i.e. we're not targeting M-class) and the function is Thumb. |
| 7861 | bool UseThumbTarget = IsThumb && ThumbTarget; |
| 7862 | |
| 7863 | // If we are not specifying a symbol to start disassembly with and this |
| 7864 | // is the first symbol in the section but not at the start of the section |
| 7865 | // then move the disassembly index to the start of the section and |
| 7866 | // don't print the symbol name just yet. This is so the bytes before the |
| 7867 | // first symbol are disassembled. |
| 7868 | uint64_t SymbolStart = Start; |
| 7869 | if (DisSymName.empty() && FirstSymbol && Start != 0) { |
| 7870 | FirstSymbolAtSectionStart = false; |
| 7871 | Start = 0; |
| 7872 | } |
| 7873 | else |
| 7874 | outs() << SymName << ":\n"; |
| 7875 | |
| 7876 | DILineInfo lastLine; |
| 7877 | for (uint64_t Index = Start; Index < End; Index += Size) { |
| 7878 | MCInst Inst; |
| 7879 | |
| 7880 | // If this is the first symbol in the section and it was not at the |
| 7881 | // start of the section, see if we are at its Index now and if so print |
| 7882 | // the symbol name. |
| 7883 | if (FirstSymbol && !FirstSymbolAtSectionStart && Index == SymbolStart) |
| 7884 | outs() << SymName << ":\n"; |
| 7885 | |
| 7886 | uint64_t PC = SectAddress + Index; |
| 7887 | if (LeadingAddr) { |
| 7888 | if (FullLeadingAddr) { |
| 7889 | if (MachOOF->is64Bit()) |
| 7890 | outs() << format("%016" PRIx64"l" "x", PC); |
| 7891 | else |
| 7892 | outs() << format("%08" PRIx64"l" "x", PC); |
| 7893 | } else { |
| 7894 | outs() << format("%8" PRIx64"l" "x" ":", PC); |
| 7895 | } |
| 7896 | } |
| 7897 | if (ShowRawInsn || Arch == Triple::arm) |
| 7898 | outs() << "\t"; |
| 7899 | |
| 7900 | if (DumpAndSkipDataInCode(PC, Bytes.data() + Index, Dices, Size)) |
| 7901 | continue; |
| 7902 | |
| 7903 | SmallVector<char, 64> AnnotationsBytes; |
| 7904 | raw_svector_ostream Annotations(AnnotationsBytes); |
| 7905 | |
| 7906 | bool gotInst; |
| 7907 | if (UseThumbTarget) |
| 7908 | gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index), |
| 7909 | PC, Annotations); |
| 7910 | else |
| 7911 | gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC, |
| 7912 | Annotations); |
| 7913 | if (gotInst) { |
| 7914 | if (ShowRawInsn || Arch == Triple::arm) { |
| 7915 | dumpBytes(ArrayRef(Bytes.data() + Index, Size), outs()); |
| 7916 | } |
| 7917 | formatted_raw_ostream FormattedOS(outs()); |
| 7918 | StringRef AnnotationsStr = Annotations.str(); |
| 7919 | if (UseThumbTarget) |
| 7920 | ThumbIP->printInst(&Inst, PC, AnnotationsStr, *ThumbSTI, |
| 7921 | FormattedOS); |
| 7922 | else |
| 7923 | IP->printInst(&Inst, PC, AnnotationsStr, *STI, FormattedOS); |
| 7924 | emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo); |
| 7925 | |
| 7926 | // Print debug info. |
| 7927 | if (diContext) { |
| 7928 | DILineInfo dli = diContext->getLineInfoForAddress({PC, SectIdx}); |
| 7929 | // Print valid line info if it changed. |
| 7930 | if (dli != lastLine && dli.Line != 0) |
| 7931 | outs() << "\t## " << dli.FileName << ':' << dli.Line << ':' |
| 7932 | << dli.Column; |
| 7933 | lastLine = dli; |
| 7934 | } |
| 7935 | outs() << "\n"; |
| 7936 | } else { |
| 7937 | if (MachOOF->getArchTriple().isX86()) { |
| 7938 | outs() << format("\t.byte 0x%02x #bad opcode\n", |
| 7939 | *(Bytes.data() + Index) & 0xff); |
| 7940 | Size = 1; // skip exactly one illegible byte and move on. |
| 7941 | } else if (Arch == Triple::aarch64 || |
| 7942 | (Arch == Triple::arm && !IsThumb)) { |
| 7943 | uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | |
| 7944 | (*(Bytes.data() + Index + 1) & 0xff) << 8 | |
| 7945 | (*(Bytes.data() + Index + 2) & 0xff) << 16 | |
| 7946 | (*(Bytes.data() + Index + 3) & 0xff) << 24; |
| 7947 | outs() << format("\t.long\t0x%08x\n", opcode); |
| 7948 | Size = 4; |
| 7949 | } else if (Arch == Triple::arm) { |
| 7950 | assert(IsThumb && "ARM mode should have been dealt with above")(static_cast <bool> (IsThumb && "ARM mode should have been dealt with above" ) ? void (0) : __assert_fail ("IsThumb && \"ARM mode should have been dealt with above\"" , "llvm/tools/llvm-objdump/MachODump.cpp", 7950, __extension__ __PRETTY_FUNCTION__)); |
| 7951 | uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | |
| 7952 | (*(Bytes.data() + Index + 1) & 0xff) << 8; |
| 7953 | outs() << format("\t.short\t0x%04x\n", opcode); |
| 7954 | Size = 2; |
| 7955 | } else{ |
| 7956 | WithColor::warning(errs(), "llvm-objdump") |
| 7957 | << "invalid instruction encoding\n"; |
| 7958 | if (Size == 0) |
| 7959 | Size = 1; // skip illegible bytes |
| 7960 | } |
| 7961 | } |
| 7962 | } |
| 7963 | // Now that we are done disassembled the first symbol set the bool that |
| 7964 | // were doing this to false. |
| 7965 | FirstSymbol = false; |
| 7966 | } |
| 7967 | if (!symbolTableWorked) { |
| 7968 | // Reading the symbol table didn't work, disassemble the whole section. |
| 7969 | uint64_t SectAddress = Sections[SectIdx].getAddress(); |
| 7970 | uint64_t SectSize = Sections[SectIdx].getSize(); |
| 7971 | uint64_t InstSize; |
| 7972 | for (uint64_t Index = 0; Index < SectSize; Index += InstSize) { |
| 7973 | MCInst Inst; |
| 7974 | |
| 7975 | uint64_t PC = SectAddress + Index; |
| 7976 | |
| 7977 | if (DumpAndSkipDataInCode(PC, Bytes.data() + Index, Dices, InstSize)) |
| 7978 | continue; |
| 7979 | |
| 7980 | SmallVector<char, 64> AnnotationsBytes; |
| 7981 | raw_svector_ostream Annotations(AnnotationsBytes); |
| 7982 | if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC, |
| 7983 | Annotations)) { |
| 7984 | if (LeadingAddr) { |
| 7985 | if (FullLeadingAddr) { |
| 7986 | if (MachOOF->is64Bit()) |
| 7987 | outs() << format("%016" PRIx64"l" "x", PC); |
| 7988 | else |
| 7989 | outs() << format("%08" PRIx64"l" "x", PC); |
| 7990 | } else { |
| 7991 | outs() << format("%8" PRIx64"l" "x" ":", PC); |
| 7992 | } |
| 7993 | } |
| 7994 | if (ShowRawInsn || Arch == Triple::arm) { |
| 7995 | outs() << "\t"; |
| 7996 | dumpBytes(ArrayRef(Bytes.data() + Index, InstSize), outs()); |
| 7997 | } |
| 7998 | StringRef AnnotationsStr = Annotations.str(); |
| 7999 | IP->printInst(&Inst, PC, AnnotationsStr, *STI, outs()); |
| 8000 | outs() << "\n"; |
| 8001 | } else { |
| 8002 | if (MachOOF->getArchTriple().isX86()) { |
| 8003 | outs() << format("\t.byte 0x%02x #bad opcode\n", |
| 8004 | *(Bytes.data() + Index) & 0xff); |
| 8005 | InstSize = 1; // skip exactly one illegible byte and move on. |
| 8006 | } else { |
| 8007 | WithColor::warning(errs(), "llvm-objdump") |
| 8008 | << "invalid instruction encoding\n"; |
| 8009 | if (InstSize == 0) |
| 8010 | InstSize = 1; // skip illegible bytes |
| 8011 | } |
| 8012 | } |
| 8013 | } |
| 8014 | } |
| 8015 | // The TripleName's need to be reset if we are called again for a different |
| 8016 | // architecture. |
| 8017 | TripleName = ""; |
| 8018 | ThumbTripleName = ""; |
| 8019 | |
| 8020 | if (SymbolizerInfo.demangled_name != nullptr) |
| 8021 | free(SymbolizerInfo.demangled_name); |
| 8022 | if (ThumbSymbolizerInfo.demangled_name != nullptr) |
| 8023 | free(ThumbSymbolizerInfo.demangled_name); |
| 8024 | } |
| 8025 | } |
| 8026 | |
| 8027 | //===----------------------------------------------------------------------===// |
| 8028 | // __compact_unwind section dumping |
| 8029 | //===----------------------------------------------------------------------===// |
| 8030 | |
| 8031 | namespace { |
| 8032 | |
| 8033 | template <typename T> |
| 8034 | static uint64_t read(StringRef Contents, ptrdiff_t Offset) { |
| 8035 | using llvm::support::little; |
| 8036 | using llvm::support::unaligned; |
| 8037 | |
| 8038 | if (Offset + sizeof(T) > Contents.size()) { |
| 8039 | outs() << "warning: attempt to read past end of buffer\n"; |
| 8040 | return T(); |
| 8041 | } |
| 8042 | |
| 8043 | uint64_t Val = |
| 8044 | support::endian::read<T, little, unaligned>(Contents.data() + Offset); |
| 8045 | return Val; |
| 8046 | } |
| 8047 | |
| 8048 | template <typename T> |
| 8049 | static uint64_t readNext(StringRef Contents, ptrdiff_t &Offset) { |
| 8050 | T Val = read<T>(Contents, Offset); |
| 8051 | Offset += sizeof(T); |
| 8052 | return Val; |
| 8053 | } |
| 8054 | |
| 8055 | struct CompactUnwindEntry { |
| 8056 | uint32_t OffsetInSection; |
| 8057 | |
| 8058 | uint64_t FunctionAddr; |
| 8059 | uint32_t Length; |
| 8060 | uint32_t CompactEncoding; |
| 8061 | uint64_t PersonalityAddr; |
| 8062 | uint64_t LSDAAddr; |
| 8063 | |
| 8064 | RelocationRef FunctionReloc; |
| 8065 | RelocationRef PersonalityReloc; |
| 8066 | RelocationRef LSDAReloc; |
| 8067 | |
| 8068 | CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64) |
| 8069 | : OffsetInSection(Offset) { |
| 8070 | if (Is64) |
| 8071 | read<uint64_t>(Contents, Offset); |
| 8072 | else |
| 8073 | read<uint32_t>(Contents, Offset); |
| 8074 | } |
| 8075 | |
| 8076 | private: |
| 8077 | template <typename UIntPtr> void read(StringRef Contents, ptrdiff_t Offset) { |
| 8078 | FunctionAddr = readNext<UIntPtr>(Contents, Offset); |
| 8079 | Length = readNext<uint32_t>(Contents, Offset); |
| 8080 | CompactEncoding = readNext<uint32_t>(Contents, Offset); |
| 8081 | PersonalityAddr = readNext<UIntPtr>(Contents, Offset); |
| 8082 | LSDAAddr = readNext<UIntPtr>(Contents, Offset); |
| 8083 | } |
| 8084 | }; |
| 8085 | } |
| 8086 | |
| 8087 | /// Given a relocation from __compact_unwind, consisting of the RelocationRef |
| 8088 | /// and data being relocated, determine the best base Name and Addend to use for |
| 8089 | /// display purposes. |
| 8090 | /// |
| 8091 | /// 1. An Extern relocation will directly reference a symbol (and the data is |
| 8092 | /// then already an addend), so use that. |
| 8093 | /// 2. Otherwise the data is an offset in the object file's layout; try to find |
| 8094 | // a symbol before it in the same section, and use the offset from there. |
| 8095 | /// 3. Finally, if all that fails, fall back to an offset from the start of the |
| 8096 | /// referenced section. |
| 8097 | static void findUnwindRelocNameAddend(const MachOObjectFile *Obj, |
| 8098 | std::map<uint64_t, SymbolRef> &Symbols, |
| 8099 | const RelocationRef &Reloc, uint64_t Addr, |
| 8100 | StringRef &Name, uint64_t &Addend) { |
| 8101 | if (Reloc.getSymbol() != Obj->symbol_end()) { |
| 8102 | Name = unwrapOrError(Reloc.getSymbol()->getName(), Obj->getFileName()); |
| 8103 | Addend = Addr; |
| 8104 | return; |
| 8105 | } |
| 8106 | |
| 8107 | auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl()); |
| 8108 | SectionRef RelocSection = Obj->getAnyRelocationSection(RE); |
| 8109 | |
| 8110 | uint64_t SectionAddr = RelocSection.getAddress(); |
| 8111 | |
| 8112 | auto Sym = Symbols.upper_bound(Addr); |
| 8113 | if (Sym == Symbols.begin()) { |
| 8114 | // The first symbol in the object is after this reference, the best we can |
| 8115 | // do is section-relative notation. |
| 8116 | if (Expected<StringRef> NameOrErr = RelocSection.getName()) |
| 8117 | Name = *NameOrErr; |
| 8118 | else |
| 8119 | consumeError(NameOrErr.takeError()); |
| 8120 | |
| 8121 | Addend = Addr - SectionAddr; |
| 8122 | return; |
| 8123 | } |
| 8124 | |
| 8125 | // Go back one so that SymbolAddress <= Addr. |
| 8126 | --Sym; |
| 8127 | |
| 8128 | section_iterator SymSection = |
| 8129 | unwrapOrError(Sym->second.getSection(), Obj->getFileName()); |
| 8130 | if (RelocSection == *SymSection) { |
| 8131 | // There's a valid symbol in the same section before this reference. |
| 8132 | Name = unwrapOrError(Sym->second.getName(), Obj->getFileName()); |
| 8133 | Addend = Addr - Sym->first; |
| 8134 | return; |
| 8135 | } |
| 8136 | |
| 8137 | // There is a symbol before this reference, but it's in a different |
| 8138 | // section. Probably not helpful to mention it, so use the section name. |
| 8139 | if (Expected<StringRef> NameOrErr = RelocSection.getName()) |
| 8140 | Name = *NameOrErr; |
| 8141 | else |
| 8142 | consumeError(NameOrErr.takeError()); |
| 8143 | |
| 8144 | Addend = Addr - SectionAddr; |
| 8145 | } |
| 8146 | |
| 8147 | static void printUnwindRelocDest(const MachOObjectFile *Obj, |
| 8148 | std::map<uint64_t, SymbolRef> &Symbols, |
| 8149 | const RelocationRef &Reloc, uint64_t Addr) { |
| 8150 | StringRef Name; |
| 8151 | uint64_t Addend; |
| 8152 | |
| 8153 | if (!Reloc.getObject()) |
| 8154 | return; |
| 8155 | |
| 8156 | findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend); |
| 8157 | |
| 8158 | outs() << Name; |
| 8159 | if (Addend) |
| 8160 | outs() << " + " << format("0x%" PRIx64"l" "x", Addend); |
| 8161 | } |
| 8162 | |
| 8163 | static void |
| 8164 | printMachOCompactUnwindSection(const MachOObjectFile *Obj, |
| 8165 | std::map<uint64_t, SymbolRef> &Symbols, |
| 8166 | const SectionRef &CompactUnwind) { |
| 8167 | |
| 8168 | if (!Obj->isLittleEndian()) { |
| 8169 | outs() << "Skipping big-endian __compact_unwind section\n"; |
| 8170 | return; |
| 8171 | } |
| 8172 | |
| 8173 | bool Is64 = Obj->is64Bit(); |
| 8174 | uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t); |
| 8175 | uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t); |
| 8176 | |
| 8177 | StringRef Contents = |
| 8178 | unwrapOrError(CompactUnwind.getContents(), Obj->getFileName()); |
| 8179 | SmallVector<CompactUnwindEntry, 4> CompactUnwinds; |
| 8180 | |
| 8181 | // First populate the initial raw offsets, encodings and so on from the entry. |
| 8182 | for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) { |
| 8183 | CompactUnwindEntry Entry(Contents, Offset, Is64); |
| 8184 | CompactUnwinds.push_back(Entry); |
| 8185 | } |
| 8186 | |
| 8187 | // Next we need to look at the relocations to find out what objects are |
| 8188 | // actually being referred to. |
| 8189 | for (const RelocationRef &Reloc : CompactUnwind.relocations()) { |
| 8190 | uint64_t RelocAddress = Reloc.getOffset(); |
| 8191 | |
| 8192 | uint32_t EntryIdx = RelocAddress / EntrySize; |
| 8193 | uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize; |
| 8194 | CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx]; |
| 8195 | |
| 8196 | if (OffsetInEntry == 0) |
| 8197 | Entry.FunctionReloc = Reloc; |
| 8198 | else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t)) |
| 8199 | Entry.PersonalityReloc = Reloc; |
| 8200 | else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t)) |
| 8201 | Entry.LSDAReloc = Reloc; |
| 8202 | else { |
| 8203 | outs() << "Invalid relocation in __compact_unwind section\n"; |
| 8204 | return; |
| 8205 | } |
| 8206 | } |
| 8207 | |
| 8208 | // Finally, we're ready to print the data we've gathered. |
| 8209 | outs() << "Contents of __compact_unwind section:\n"; |
| 8210 | for (auto &Entry : CompactUnwinds) { |
| 8211 | outs() << " Entry at offset " |
| 8212 | << format("0x%" PRIx32"x", Entry.OffsetInSection) << ":\n"; |
| 8213 | |
| 8214 | // 1. Start of the region this entry applies to. |
| 8215 | outs() << " start: " << format("0x%" PRIx64"l" "x", |
| 8216 | Entry.FunctionAddr) << ' '; |
| 8217 | printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr); |
| 8218 | outs() << '\n'; |
| 8219 | |
| 8220 | // 2. Length of the region this entry applies to. |
| 8221 | outs() << " length: " << format("0x%" PRIx32"x", Entry.Length) |
| 8222 | << '\n'; |
| 8223 | // 3. The 32-bit compact encoding. |
| 8224 | outs() << " compact encoding: " |
| 8225 | << format("0x%08" PRIx32"x", Entry.CompactEncoding) << '\n'; |
| 8226 | |
| 8227 | // 4. The personality function, if present. |
| 8228 | if (Entry.PersonalityReloc.getObject()) { |
| 8229 | outs() << " personality function: " |
| 8230 | << format("0x%" PRIx64"l" "x", Entry.PersonalityAddr) << ' '; |
| 8231 | printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc, |
| 8232 | Entry.PersonalityAddr); |
| 8233 | outs() << '\n'; |
| 8234 | } |
| 8235 | |
| 8236 | // 5. This entry's language-specific data area. |
| 8237 | if (Entry.LSDAReloc.getObject()) { |
| 8238 | outs() << " LSDA: " << format("0x%" PRIx64"l" "x", |
| 8239 | Entry.LSDAAddr) << ' '; |
| 8240 | printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr); |
| 8241 | outs() << '\n'; |
| 8242 | } |
| 8243 | } |
| 8244 | } |
| 8245 | |
| 8246 | //===----------------------------------------------------------------------===// |
| 8247 | // __unwind_info section dumping |
| 8248 | //===----------------------------------------------------------------------===// |
| 8249 | |
| 8250 | static void printRegularSecondLevelUnwindPage(StringRef PageData) { |
| 8251 | ptrdiff_t Pos = 0; |
| 8252 | uint32_t Kind = readNext<uint32_t>(PageData, Pos); |
| 8253 | (void)Kind; |
| 8254 | assert(Kind == 2 && "kind for a regular 2nd level index should be 2")(static_cast <bool> (Kind == 2 && "kind for a regular 2nd level index should be 2" ) ? void (0) : __assert_fail ("Kind == 2 && \"kind for a regular 2nd level index should be 2\"" , "llvm/tools/llvm-objdump/MachODump.cpp", 8254, __extension__ __PRETTY_FUNCTION__)); |
| 8255 | |
| 8256 | uint16_t EntriesStart = readNext<uint16_t>(PageData, Pos); |
| 8257 | uint16_t NumEntries = readNext<uint16_t>(PageData, Pos); |
| 8258 | |
| 8259 | Pos = EntriesStart; |
| 8260 | for (unsigned i = 0; i < NumEntries; ++i) { |
| 8261 | uint32_t FunctionOffset = readNext<uint32_t>(PageData, Pos); |
| 8262 | uint32_t Encoding = readNext<uint32_t>(PageData, Pos); |
| 8263 | |
| 8264 | outs() << " [" << i << "]: " |
| 8265 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
| 8266 | << ", " |
| 8267 | << "encoding=" << format("0x%08" PRIx32"x", Encoding) << '\n'; |
| 8268 | } |
| 8269 | } |
| 8270 | |
| 8271 | static void printCompressedSecondLevelUnwindPage( |
| 8272 | StringRef PageData, uint32_t FunctionBase, |
| 8273 | const SmallVectorImpl<uint32_t> &CommonEncodings) { |
| 8274 | ptrdiff_t Pos = 0; |
| 8275 | uint32_t Kind = readNext<uint32_t>(PageData, Pos); |
| 8276 | (void)Kind; |
| 8277 | assert(Kind == 3 && "kind for a compressed 2nd level index should be 3")(static_cast <bool> (Kind == 3 && "kind for a compressed 2nd level index should be 3" ) ? void (0) : __assert_fail ("Kind == 3 && \"kind for a compressed 2nd level index should be 3\"" , "llvm/tools/llvm-objdump/MachODump.cpp", 8277, __extension__ __PRETTY_FUNCTION__)); |
| 8278 | |
| 8279 | uint32_t NumCommonEncodings = CommonEncodings.size(); |
| 8280 | uint16_t EntriesStart = readNext<uint16_t>(PageData, Pos); |
| 8281 | uint16_t NumEntries = readNext<uint16_t>(PageData, Pos); |
| 8282 | |
| 8283 | uint16_t PageEncodingsStart = readNext<uint16_t>(PageData, Pos); |
| 8284 | uint16_t NumPageEncodings = readNext<uint16_t>(PageData, Pos); |
| 8285 | SmallVector<uint32_t, 64> PageEncodings; |
| 8286 | if (NumPageEncodings) { |
| 8287 | outs() << " Page encodings: (count = " << NumPageEncodings << ")\n"; |
| 8288 | Pos = PageEncodingsStart; |
| 8289 | for (unsigned i = 0; i < NumPageEncodings; ++i) { |
| 8290 | uint32_t Encoding = readNext<uint32_t>(PageData, Pos); |
| 8291 | PageEncodings.push_back(Encoding); |
| 8292 | outs() << " encoding[" << (i + NumCommonEncodings) |
| 8293 | << "]: " << format("0x%08" PRIx32"x", Encoding) << '\n'; |
| 8294 | } |
| 8295 | } |
| 8296 | |
| 8297 | Pos = EntriesStart; |
| 8298 | for (unsigned i = 0; i < NumEntries; ++i) { |
| 8299 | uint32_t Entry = readNext<uint32_t>(PageData, Pos); |
| 8300 | uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff); |
| 8301 | uint32_t EncodingIdx = Entry >> 24; |
| 8302 | |
| 8303 | uint32_t Encoding; |
| 8304 | if (EncodingIdx < NumCommonEncodings) |
| 8305 | Encoding = CommonEncodings[EncodingIdx]; |
| 8306 | else |
| 8307 | Encoding = PageEncodings[EncodingIdx - NumCommonEncodings]; |
| 8308 | |
| 8309 | outs() << " [" << i << "]: " |
| 8310 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
| 8311 | << ", " |
| 8312 | << "encoding[" << EncodingIdx |
| 8313 | << "]=" << format("0x%08" PRIx32"x", Encoding) << '\n'; |
| 8314 | } |
| 8315 | } |
| 8316 | |
| 8317 | static void printMachOUnwindInfoSection(const MachOObjectFile *Obj, |
| 8318 | std::map<uint64_t, SymbolRef> &Symbols, |
| 8319 | const SectionRef &UnwindInfo) { |
| 8320 | |
| 8321 | if (!Obj->isLittleEndian()) { |
| 8322 | outs() << "Skipping big-endian __unwind_info section\n"; |
| 8323 | return; |
| 8324 | } |
| 8325 | |
| 8326 | outs() << "Contents of __unwind_info section:\n"; |
| 8327 | |
| 8328 | StringRef Contents = |
| 8329 | unwrapOrError(UnwindInfo.getContents(), Obj->getFileName()); |
| 8330 | ptrdiff_t Pos = 0; |
| 8331 | |
| 8332 | //===---------------------------------- |
| 8333 | // Section header |
| 8334 | //===---------------------------------- |
| 8335 | |
| 8336 | uint32_t Version = readNext<uint32_t>(Contents, Pos); |
| 8337 | outs() << " Version: " |
| 8338 | << format("0x%" PRIx32"x", Version) << '\n'; |
| 8339 | if (Version != 1) { |
| 8340 | outs() << " Skipping section with unknown version\n"; |
| 8341 | return; |
| 8342 | } |
| 8343 | |
| 8344 | uint32_t CommonEncodingsStart = readNext<uint32_t>(Contents, Pos); |
| 8345 | outs() << " Common encodings array section offset: " |
| 8346 | << format("0x%" PRIx32"x", CommonEncodingsStart) << '\n'; |
| 8347 | uint32_t NumCommonEncodings = readNext<uint32_t>(Contents, Pos); |
| 8348 | outs() << " Number of common encodings in array: " |
| 8349 | << format("0x%" PRIx32"x", NumCommonEncodings) << '\n'; |
| 8350 | |
| 8351 | uint32_t PersonalitiesStart = readNext<uint32_t>(Contents, Pos); |
| 8352 | outs() << " Personality function array section offset: " |
| 8353 | << format("0x%" PRIx32"x", PersonalitiesStart) << '\n'; |
| 8354 | uint32_t NumPersonalities = readNext<uint32_t>(Contents, Pos); |
| 8355 | outs() << " Number of personality functions in array: " |
| 8356 | << format("0x%" PRIx32"x", NumPersonalities) << '\n'; |
| 8357 | |
| 8358 | uint32_t IndicesStart = readNext<uint32_t>(Contents, Pos); |
| 8359 | outs() << " Index array section offset: " |
| 8360 | << format("0x%" PRIx32"x", IndicesStart) << '\n'; |
| 8361 | uint32_t NumIndices = readNext<uint32_t>(Contents, Pos); |
| 8362 | outs() << " Number of indices in array: " |
| 8363 | << format("0x%" PRIx32"x", NumIndices) << '\n'; |
| 8364 | |
| 8365 | //===---------------------------------- |
| 8366 | // A shared list of common encodings |
| 8367 | //===---------------------------------- |
| 8368 | |
| 8369 | // These occupy indices in the range [0, N] whenever an encoding is referenced |
| 8370 | // from a compressed 2nd level index table. In practice the linker only |
| 8371 | // creates ~128 of these, so that indices are available to embed encodings in |
| 8372 | // the 2nd level index. |
| 8373 | |
| 8374 | SmallVector<uint32_t, 64> CommonEncodings; |
| 8375 | outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n"; |
| 8376 | Pos = CommonEncodingsStart; |
| 8377 | for (unsigned i = 0; i < NumCommonEncodings; ++i) { |
| 8378 | uint32_t Encoding = readNext<uint32_t>(Contents, Pos); |
| 8379 | CommonEncodings.push_back(Encoding); |
| 8380 | |
| 8381 | outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32"x", Encoding) |
| 8382 | << '\n'; |
| 8383 | } |
| 8384 | |
| 8385 | //===---------------------------------- |
| 8386 | // Personality functions used in this executable |
| 8387 | //===---------------------------------- |
| 8388 | |
| 8389 | // There should be only a handful of these (one per source language, |
| 8390 | // roughly). Particularly since they only get 2 bits in the compact encoding. |
| 8391 | |
| 8392 | outs() << " Personality functions: (count = " << NumPersonalities << ")\n"; |
| 8393 | Pos = PersonalitiesStart; |
| 8394 | for (unsigned i = 0; i < NumPersonalities; ++i) { |
| 8395 | uint32_t PersonalityFn = readNext<uint32_t>(Contents, Pos); |
| 8396 | outs() << " personality[" << i + 1 |
| 8397 | << "]: " << format("0x%08" PRIx32"x", PersonalityFn) << '\n'; |
| 8398 | } |
| 8399 | |
| 8400 | //===---------------------------------- |
| 8401 | // The level 1 index entries |
| 8402 | //===---------------------------------- |
| 8403 | |
| 8404 | // These specify an approximate place to start searching for the more detailed |
| 8405 | // information, sorted by PC. |
| 8406 | |
| 8407 | struct IndexEntry { |
| 8408 | uint32_t FunctionOffset; |
| 8409 | uint32_t SecondLevelPageStart; |
| 8410 | uint32_t LSDAStart; |
| 8411 | }; |
| 8412 | |
| 8413 | SmallVector<IndexEntry, 4> IndexEntries; |
| 8414 | |
| 8415 | outs() << " Top level indices: (count = " << NumIndices << ")\n"; |
| 8416 | Pos = IndicesStart; |
| 8417 | for (unsigned i = 0; i < NumIndices; ++i) { |
| 8418 | IndexEntry Entry; |
| 8419 | |
| 8420 | Entry.FunctionOffset = readNext<uint32_t>(Contents, Pos); |
| 8421 | Entry.SecondLevelPageStart = readNext<uint32_t>(Contents, Pos); |
| 8422 | Entry.LSDAStart = readNext<uint32_t>(Contents, Pos); |
| 8423 | IndexEntries.push_back(Entry); |
| 8424 | |
| 8425 | outs() << " [" << i << "]: " |
| 8426 | << "function offset=" << format("0x%08" PRIx32"x", Entry.FunctionOffset) |
| 8427 | << ", " |
| 8428 | << "2nd level page offset=" |
| 8429 | << format("0x%08" PRIx32"x", Entry.SecondLevelPageStart) << ", " |
| 8430 | << "LSDA offset=" << format("0x%08" PRIx32"x", Entry.LSDAStart) << '\n'; |
| 8431 | } |
| 8432 | |
| 8433 | //===---------------------------------- |
| 8434 | // Next come the LSDA tables |
| 8435 | //===---------------------------------- |
| 8436 | |
| 8437 | // The LSDA layout is rather implicit: it's a contiguous array of entries from |
| 8438 | // the first top-level index's LSDAOffset to the last (sentinel). |
| 8439 | |
| 8440 | outs() << " LSDA descriptors:\n"; |
| 8441 | Pos = IndexEntries[0].LSDAStart; |
| 8442 | const uint32_t LSDASize = 2 * sizeof(uint32_t); |
| 8443 | int NumLSDAs = |
| 8444 | (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) / LSDASize; |
| 8445 | |
| 8446 | for (int i = 0; i < NumLSDAs; ++i) { |
| 8447 | uint32_t FunctionOffset = readNext<uint32_t>(Contents, Pos); |
| 8448 | uint32_t LSDAOffset = readNext<uint32_t>(Contents, Pos); |
| 8449 | outs() << " [" << i << "]: " |
| 8450 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
| 8451 | << ", " |
| 8452 | << "LSDA offset=" << format("0x%08" PRIx32"x", LSDAOffset) << '\n'; |
| 8453 | } |
| 8454 | |
| 8455 | //===---------------------------------- |
| 8456 | // Finally, the 2nd level indices |
| 8457 | //===---------------------------------- |
| 8458 | |
| 8459 | // Generally these are 4K in size, and have 2 possible forms: |
| 8460 | // + Regular stores up to 511 entries with disparate encodings |
| 8461 | // + Compressed stores up to 1021 entries if few enough compact encoding |
| 8462 | // values are used. |
| 8463 | outs() << " Second level indices:\n"; |
| 8464 | for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) { |
| 8465 | // The final sentinel top-level index has no associated 2nd level page |
| 8466 | if (IndexEntries[i].SecondLevelPageStart == 0) |
| 8467 | break; |
| 8468 | |
| 8469 | outs() << " Second level index[" << i << "]: " |
| 8470 | << "offset in section=" |
| 8471 | << format("0x%08" PRIx32"x", IndexEntries[i].SecondLevelPageStart) |
| 8472 | << ", " |
| 8473 | << "base function offset=" |
| 8474 | << format("0x%08" PRIx32"x", IndexEntries[i].FunctionOffset) << '\n'; |
| 8475 | |
| 8476 | Pos = IndexEntries[i].SecondLevelPageStart; |
| 8477 | if (Pos + sizeof(uint32_t) > Contents.size()) { |
| 8478 | outs() << "warning: invalid offset for second level page: " << Pos << '\n'; |
| 8479 | continue; |
| 8480 | } |
| 8481 | |
| 8482 | uint32_t Kind = |
| 8483 | *reinterpret_cast<const support::ulittle32_t *>(Contents.data() + Pos); |
| 8484 | if (Kind == 2) |
| 8485 | printRegularSecondLevelUnwindPage(Contents.substr(Pos, 4096)); |
| 8486 | else if (Kind == 3) |
| 8487 | printCompressedSecondLevelUnwindPage(Contents.substr(Pos, 4096), |
| 8488 | IndexEntries[i].FunctionOffset, |
| 8489 | CommonEncodings); |
| 8490 | else |
| 8491 | outs() << " Skipping 2nd level page with unknown kind " << Kind |
| 8492 | << '\n'; |
| 8493 | } |
| 8494 | } |
| 8495 | |
| 8496 | void objdump::printMachOUnwindInfo(const MachOObjectFile *Obj) { |
| 8497 | std::map<uint64_t, SymbolRef> Symbols; |
| 8498 | for (const SymbolRef &SymRef : Obj->symbols()) { |
| 8499 | // Discard any undefined or absolute symbols. They're not going to take part |
| 8500 | // in the convenience lookup for unwind info and just take up resources. |
| 8501 | auto SectOrErr = SymRef.getSection(); |
| 8502 | if (!SectOrErr) { |
| 8503 | // TODO: Actually report errors helpfully. |
| 8504 | consumeError(SectOrErr.takeError()); |
| 8505 | continue; |
| 8506 | } |
| 8507 | section_iterator Section = *SectOrErr; |
| 8508 | if (Section == Obj->section_end()) |
| 8509 | continue; |
| 8510 | |
| 8511 | uint64_t Addr = cantFail(SymRef.getValue()); |
| 8512 | Symbols.insert(std::make_pair(Addr, SymRef)); |
| 8513 | } |
| 8514 | |
| 8515 | for (const SectionRef &Section : Obj->sections()) { |
| 8516 | StringRef SectName; |
| 8517 | if (Expected<StringRef> NameOrErr = Section.getName()) |
| 8518 | SectName = *NameOrErr; |
| 8519 | else |
| 8520 | consumeError(NameOrErr.takeError()); |
| 8521 | |
| 8522 | if (SectName == "__compact_unwind") |
| 8523 | printMachOCompactUnwindSection(Obj, Symbols, Section); |
| 8524 | else if (SectName == "__unwind_info") |
| 8525 | printMachOUnwindInfoSection(Obj, Symbols, Section); |
| 8526 | } |
| 8527 | } |
| 8528 | |
| 8529 | static void PrintMachHeader(uint32_t magic, uint32_t cputype, |
| 8530 | uint32_t cpusubtype, uint32_t filetype, |
| 8531 | uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags, |
| 8532 | bool verbose) { |
| 8533 | outs() << "Mach header\n"; |
| 8534 | outs() << " magic cputype cpusubtype caps filetype ncmds " |
| 8535 | "sizeofcmds flags\n"; |
| 8536 | if (verbose) { |
| 8537 | if (magic == MachO::MH_MAGIC) |
| 8538 | outs() << " MH_MAGIC"; |
| 8539 | else if (magic == MachO::MH_MAGIC_64) |
| 8540 | outs() << "MH_MAGIC_64"; |
| 8541 | else |
| 8542 | outs() << format(" 0x%08" PRIx32"x", magic); |
| 8543 | switch (cputype) { |
| 8544 | case MachO::CPU_TYPE_I386: |
| 8545 | outs() << " I386"; |
| 8546 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8547 | case MachO::CPU_SUBTYPE_I386_ALL: |
| 8548 | outs() << " ALL"; |
| 8549 | break; |
| 8550 | default: |
| 8551 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8552 | break; |
| 8553 | } |
| 8554 | break; |
| 8555 | case MachO::CPU_TYPE_X86_64: |
| 8556 | outs() << " X86_64"; |
| 8557 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8558 | case MachO::CPU_SUBTYPE_X86_64_ALL: |
| 8559 | outs() << " ALL"; |
| 8560 | break; |
| 8561 | case MachO::CPU_SUBTYPE_X86_64_H: |
| 8562 | outs() << " Haswell"; |
| 8563 | break; |
| 8564 | default: |
| 8565 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8566 | break; |
| 8567 | } |
| 8568 | break; |
| 8569 | case MachO::CPU_TYPE_ARM: |
| 8570 | outs() << " ARM"; |
| 8571 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8572 | case MachO::CPU_SUBTYPE_ARM_ALL: |
| 8573 | outs() << " ALL"; |
| 8574 | break; |
| 8575 | case MachO::CPU_SUBTYPE_ARM_V4T: |
| 8576 | outs() << " V4T"; |
| 8577 | break; |
| 8578 | case MachO::CPU_SUBTYPE_ARM_V5TEJ: |
| 8579 | outs() << " V5TEJ"; |
| 8580 | break; |
| 8581 | case MachO::CPU_SUBTYPE_ARM_XSCALE: |
| 8582 | outs() << " XSCALE"; |
| 8583 | break; |
| 8584 | case MachO::CPU_SUBTYPE_ARM_V6: |
| 8585 | outs() << " V6"; |
| 8586 | break; |
| 8587 | case MachO::CPU_SUBTYPE_ARM_V6M: |
| 8588 | outs() << " V6M"; |
| 8589 | break; |
| 8590 | case MachO::CPU_SUBTYPE_ARM_V7: |
| 8591 | outs() << " V7"; |
| 8592 | break; |
| 8593 | case MachO::CPU_SUBTYPE_ARM_V7EM: |
| 8594 | outs() << " V7EM"; |
| 8595 | break; |
| 8596 | case MachO::CPU_SUBTYPE_ARM_V7K: |
| 8597 | outs() << " V7K"; |
| 8598 | break; |
| 8599 | case MachO::CPU_SUBTYPE_ARM_V7M: |
| 8600 | outs() << " V7M"; |
| 8601 | break; |
| 8602 | case MachO::CPU_SUBTYPE_ARM_V7S: |
| 8603 | outs() << " V7S"; |
| 8604 | break; |
| 8605 | default: |
| 8606 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8607 | break; |
| 8608 | } |
| 8609 | break; |
| 8610 | case MachO::CPU_TYPE_ARM64: |
| 8611 | outs() << " ARM64"; |
| 8612 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8613 | case MachO::CPU_SUBTYPE_ARM64_ALL: |
| 8614 | outs() << " ALL"; |
| 8615 | break; |
| 8616 | case MachO::CPU_SUBTYPE_ARM64_V8: |
| 8617 | outs() << " V8"; |
| 8618 | break; |
| 8619 | case MachO::CPU_SUBTYPE_ARM64E: |
| 8620 | outs() << " E"; |
| 8621 | break; |
| 8622 | default: |
| 8623 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8624 | break; |
| 8625 | } |
| 8626 | break; |
| 8627 | case MachO::CPU_TYPE_ARM64_32: |
| 8628 | outs() << " ARM64_32"; |
| 8629 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8630 | case MachO::CPU_SUBTYPE_ARM64_32_V8: |
| 8631 | outs() << " V8"; |
| 8632 | break; |
| 8633 | default: |
| 8634 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8635 | break; |
| 8636 | } |
| 8637 | break; |
| 8638 | case MachO::CPU_TYPE_POWERPC: |
| 8639 | outs() << " PPC"; |
| 8640 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8641 | case MachO::CPU_SUBTYPE_POWERPC_ALL: |
| 8642 | outs() << " ALL"; |
| 8643 | break; |
| 8644 | default: |
| 8645 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8646 | break; |
| 8647 | } |
| 8648 | break; |
| 8649 | case MachO::CPU_TYPE_POWERPC64: |
| 8650 | outs() << " PPC64"; |
| 8651 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
| 8652 | case MachO::CPU_SUBTYPE_POWERPC_ALL: |
| 8653 | outs() << " ALL"; |
| 8654 | break; |
| 8655 | default: |
| 8656 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8657 | break; |
| 8658 | } |
| 8659 | break; |
| 8660 | default: |
| 8661 | outs() << format(" %7d", cputype); |
| 8662 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8663 | break; |
| 8664 | } |
| 8665 | if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) { |
| 8666 | outs() << " LIB64"; |
| 8667 | } else { |
| 8668 | outs() << format(" 0x%02" PRIx32"x", |
| 8669 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); |
| 8670 | } |
| 8671 | switch (filetype) { |
| 8672 | case MachO::MH_OBJECT: |
| 8673 | outs() << " OBJECT"; |
| 8674 | break; |
| 8675 | case MachO::MH_EXECUTE: |
| 8676 | outs() << " EXECUTE"; |
| 8677 | break; |
| 8678 | case MachO::MH_FVMLIB: |
| 8679 | outs() << " FVMLIB"; |
| 8680 | break; |
| 8681 | case MachO::MH_CORE: |
| 8682 | outs() << " CORE"; |
| 8683 | break; |
| 8684 | case MachO::MH_PRELOAD: |
| 8685 | outs() << " PRELOAD"; |
| 8686 | break; |
| 8687 | case MachO::MH_DYLIB: |
| 8688 | outs() << " DYLIB"; |
| 8689 | break; |
| 8690 | case MachO::MH_DYLIB_STUB: |
| 8691 | outs() << " DYLIB_STUB"; |
| 8692 | break; |
| 8693 | case MachO::MH_DYLINKER: |
| 8694 | outs() << " DYLINKER"; |
| 8695 | break; |
| 8696 | case MachO::MH_BUNDLE: |
| 8697 | outs() << " BUNDLE"; |
| 8698 | break; |
| 8699 | case MachO::MH_DSYM: |
| 8700 | outs() << " DSYM"; |
| 8701 | break; |
| 8702 | case MachO::MH_KEXT_BUNDLE: |
| 8703 | outs() << " KEXTBUNDLE"; |
| 8704 | break; |
| 8705 | case MachO::MH_FILESET: |
| 8706 | outs() << " FILESET"; |
| 8707 | break; |
| 8708 | default: |
| 8709 | outs() << format(" %10u", filetype); |
| 8710 | break; |
| 8711 | } |
| 8712 | outs() << format(" %5u", ncmds); |
| 8713 | outs() << format(" %10u", sizeofcmds); |
| 8714 | uint32_t f = flags; |
| 8715 | if (f & MachO::MH_NOUNDEFS) { |
| 8716 | outs() << " NOUNDEFS"; |
| 8717 | f &= ~MachO::MH_NOUNDEFS; |
| 8718 | } |
| 8719 | if (f & MachO::MH_INCRLINK) { |
| 8720 | outs() << " INCRLINK"; |
| 8721 | f &= ~MachO::MH_INCRLINK; |
| 8722 | } |
| 8723 | if (f & MachO::MH_DYLDLINK) { |
| 8724 | outs() << " DYLDLINK"; |
| 8725 | f &= ~MachO::MH_DYLDLINK; |
| 8726 | } |
| 8727 | if (f & MachO::MH_BINDATLOAD) { |
| 8728 | outs() << " BINDATLOAD"; |
| 8729 | f &= ~MachO::MH_BINDATLOAD; |
| 8730 | } |
| 8731 | if (f & MachO::MH_PREBOUND) { |
| 8732 | outs() << " PREBOUND"; |
| 8733 | f &= ~MachO::MH_PREBOUND; |
| 8734 | } |
| 8735 | if (f & MachO::MH_SPLIT_SEGS) { |
| 8736 | outs() << " SPLIT_SEGS"; |
| 8737 | f &= ~MachO::MH_SPLIT_SEGS; |
| 8738 | } |
| 8739 | if (f & MachO::MH_LAZY_INIT) { |
| 8740 | outs() << " LAZY_INIT"; |
| 8741 | f &= ~MachO::MH_LAZY_INIT; |
| 8742 | } |
| 8743 | if (f & MachO::MH_TWOLEVEL) { |
| 8744 | outs() << " TWOLEVEL"; |
| 8745 | f &= ~MachO::MH_TWOLEVEL; |
| 8746 | } |
| 8747 | if (f & MachO::MH_FORCE_FLAT) { |
| 8748 | outs() << " FORCE_FLAT"; |
| 8749 | f &= ~MachO::MH_FORCE_FLAT; |
| 8750 | } |
| 8751 | if (f & MachO::MH_NOMULTIDEFS) { |
| 8752 | outs() << " NOMULTIDEFS"; |
| 8753 | f &= ~MachO::MH_NOMULTIDEFS; |
| 8754 | } |
| 8755 | if (f & MachO::MH_NOFIXPREBINDING) { |
| 8756 | outs() << " NOFIXPREBINDING"; |
| 8757 | f &= ~MachO::MH_NOFIXPREBINDING; |
| 8758 | } |
| 8759 | if (f & MachO::MH_PREBINDABLE) { |
| 8760 | outs() << " PREBINDABLE"; |
| 8761 | f &= ~MachO::MH_PREBINDABLE; |
| 8762 | } |
| 8763 | if (f & MachO::MH_ALLMODSBOUND) { |
| 8764 | outs() << " ALLMODSBOUND"; |
| 8765 | f &= ~MachO::MH_ALLMODSBOUND; |
| 8766 | } |
| 8767 | if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) { |
| 8768 | outs() << " SUBSECTIONS_VIA_SYMBOLS"; |
| 8769 | f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS; |
| 8770 | } |
| 8771 | if (f & MachO::MH_CANONICAL) { |
| 8772 | outs() << " CANONICAL"; |
| 8773 | f &= ~MachO::MH_CANONICAL; |
| 8774 | } |
| 8775 | if (f & MachO::MH_WEAK_DEFINES) { |
| 8776 | outs() << " WEAK_DEFINES"; |
| 8777 | f &= ~MachO::MH_WEAK_DEFINES; |
| 8778 | } |
| 8779 | if (f & MachO::MH_BINDS_TO_WEAK) { |
| 8780 | outs() << " BINDS_TO_WEAK"; |
| 8781 | f &= ~MachO::MH_BINDS_TO_WEAK; |
| 8782 | } |
| 8783 | if (f & MachO::MH_ALLOW_STACK_EXECUTION) { |
| 8784 | outs() << " ALLOW_STACK_EXECUTION"; |
| 8785 | f &= ~MachO::MH_ALLOW_STACK_EXECUTION; |
| 8786 | } |
| 8787 | if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) { |
| 8788 | outs() << " DEAD_STRIPPABLE_DYLIB"; |
| 8789 | f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB; |
| 8790 | } |
| 8791 | if (f & MachO::MH_PIE) { |
| 8792 | outs() << " PIE"; |
| 8793 | f &= ~MachO::MH_PIE; |
| 8794 | } |
| 8795 | if (f & MachO::MH_NO_REEXPORTED_DYLIBS) { |
| 8796 | outs() << " NO_REEXPORTED_DYLIBS"; |
| 8797 | f &= ~MachO::MH_NO_REEXPORTED_DYLIBS; |
| 8798 | } |
| 8799 | if (f & MachO::MH_HAS_TLV_DESCRIPTORS) { |
| 8800 | outs() << " MH_HAS_TLV_DESCRIPTORS"; |
| 8801 | f &= ~MachO::MH_HAS_TLV_DESCRIPTORS; |
| 8802 | } |
| 8803 | if (f & MachO::MH_NO_HEAP_EXECUTION) { |
| 8804 | outs() << " MH_NO_HEAP_EXECUTION"; |
| 8805 | f &= ~MachO::MH_NO_HEAP_EXECUTION; |
| 8806 | } |
| 8807 | if (f & MachO::MH_APP_EXTENSION_SAFE) { |
| 8808 | outs() << " APP_EXTENSION_SAFE"; |
| 8809 | f &= ~MachO::MH_APP_EXTENSION_SAFE; |
| 8810 | } |
| 8811 | if (f & MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO) { |
| 8812 | outs() << " NLIST_OUTOFSYNC_WITH_DYLDINFO"; |
| 8813 | f &= ~MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO; |
| 8814 | } |
| 8815 | if (f != 0 || flags == 0) |
| 8816 | outs() << format(" 0x%08" PRIx32"x", f); |
| 8817 | } else { |
| 8818 | outs() << format(" 0x%08" PRIx32"x", magic); |
| 8819 | outs() << format(" %7d", cputype); |
| 8820 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
| 8821 | outs() << format(" 0x%02" PRIx32"x", |
| 8822 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); |
| 8823 | outs() << format(" %10u", filetype); |
| 8824 | outs() << format(" %5u", ncmds); |
| 8825 | outs() << format(" %10u", sizeofcmds); |
| 8826 | outs() << format(" 0x%08" PRIx32"x", flags); |
| 8827 | } |
| 8828 | outs() << "\n"; |
| 8829 | } |
| 8830 | |
| 8831 | static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize, |
| 8832 | StringRef SegName, uint64_t vmaddr, |
| 8833 | uint64_t vmsize, uint64_t fileoff, |
| 8834 | uint64_t filesize, uint32_t maxprot, |
| 8835 | uint32_t initprot, uint32_t nsects, |
| 8836 | uint32_t flags, uint32_t object_size, |
| 8837 | bool verbose) { |
| 8838 | uint64_t expected_cmdsize; |
| 8839 | if (cmd == MachO::LC_SEGMENT) { |
| 8840 | outs() << " cmd LC_SEGMENT\n"; |
| 8841 | expected_cmdsize = nsects; |
| 8842 | expected_cmdsize *= sizeof(struct MachO::section); |
| 8843 | expected_cmdsize += sizeof(struct MachO::segment_command); |
| 8844 | } else { |
| 8845 | outs() << " cmd LC_SEGMENT_64\n"; |
| 8846 | expected_cmdsize = nsects; |
| 8847 | expected_cmdsize *= sizeof(struct MachO::section_64); |
| 8848 | expected_cmdsize += sizeof(struct MachO::segment_command_64); |
| 8849 | } |
| 8850 | outs() << " cmdsize " << cmdsize; |
| 8851 | if (cmdsize != expected_cmdsize) |
| 8852 | outs() << " Inconsistent size\n"; |
| 8853 | else |
| 8854 | outs() << "\n"; |
| 8855 | outs() << " segname " << SegName << "\n"; |
| 8856 | if (cmd == MachO::LC_SEGMENT_64) { |
| 8857 | outs() << " vmaddr " << format("0x%016" PRIx64"l" "x", vmaddr) << "\n"; |
| 8858 | outs() << " vmsize " << format("0x%016" PRIx64"l" "x", vmsize) << "\n"; |
| 8859 | } else { |
| 8860 | outs() << " vmaddr " << format("0x%08" PRIx64"l" "x", vmaddr) << "\n"; |
| 8861 | outs() << " vmsize " << format("0x%08" PRIx64"l" "x", vmsize) << "\n"; |
| 8862 | } |
| 8863 | outs() << " fileoff " << fileoff; |
| 8864 | if (fileoff > object_size) |
| 8865 | outs() << " (past end of file)\n"; |
| 8866 | else |
| 8867 | outs() << "\n"; |
| 8868 | outs() << " filesize " << filesize; |
| 8869 | if (fileoff + filesize > object_size) |
| 8870 | outs() << " (past end of file)\n"; |
| 8871 | else |
| 8872 | outs() << "\n"; |
| 8873 | if (verbose) { |
| 8874 | if ((maxprot & |
| 8875 | ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | |
| 8876 | MachO::VM_PROT_EXECUTE)) != 0) |
| 8877 | outs() << " maxprot ?" << format("0x%08" PRIx32"x", maxprot) << "\n"; |
| 8878 | else { |
| 8879 | outs() << " maxprot "; |
| 8880 | outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-"); |
| 8881 | outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-"); |
| 8882 | outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); |
| 8883 | } |
| 8884 | if ((initprot & |
| 8885 | ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | |
| 8886 | MachO::VM_PROT_EXECUTE)) != 0) |
| 8887 | outs() << " initprot ?" << format("0x%08" PRIx32"x", initprot) << "\n"; |
| 8888 | else { |
| 8889 | outs() << " initprot "; |
| 8890 | outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-"); |
| 8891 | outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-"); |
| 8892 | outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); |
| 8893 | } |
| 8894 | } else { |
| 8895 | outs() << " maxprot " << format("0x%08" PRIx32"x", maxprot) << "\n"; |
| 8896 | outs() << " initprot " << format("0x%08" PRIx32"x", initprot) << "\n"; |
| 8897 | } |
| 8898 | outs() << " nsects " << nsects << "\n"; |
| 8899 | if (verbose) { |
| 8900 | outs() << " flags"; |
| 8901 | if (flags == 0) |
| 8902 | outs() << " (none)\n"; |
| 8903 | else { |
| 8904 | if (flags & MachO::SG_HIGHVM) { |
| 8905 | outs() << " HIGHVM"; |
| 8906 | flags &= ~MachO::SG_HIGHVM; |
| 8907 | } |
| 8908 | if (flags & MachO::SG_FVMLIB) { |
| 8909 | outs() << " FVMLIB"; |
| 8910 | flags &= ~MachO::SG_FVMLIB; |
| 8911 | } |
| 8912 | if (flags & MachO::SG_NORELOC) { |
| 8913 | outs() << " NORELOC"; |
| 8914 | flags &= ~MachO::SG_NORELOC; |
| 8915 | } |
| 8916 | if (flags & MachO::SG_PROTECTED_VERSION_1) { |
| 8917 | outs() << " PROTECTED_VERSION_1"; |
| 8918 | flags &= ~MachO::SG_PROTECTED_VERSION_1; |
| 8919 | } |
| 8920 | if (flags & MachO::SG_READ_ONLY) { |
| 8921 | // Apple's otool prints the SG_ prefix for this flag, but not for the |
| 8922 | // others. |
| 8923 | outs() << " SG_READ_ONLY"; |
| 8924 | flags &= ~MachO::SG_READ_ONLY; |
| 8925 | } |
| 8926 | if (flags) |
| 8927 | outs() << format(" 0x%08" PRIx32"x", flags) << " (unknown flags)\n"; |
| 8928 | else |
| 8929 | outs() << "\n"; |
| 8930 | } |
| 8931 | } else { |
| 8932 | outs() << " flags " << format("0x%" PRIx32"x", flags) << "\n"; |
| 8933 | } |
| 8934 | } |
| 8935 | |
| 8936 | static void PrintSection(const char *sectname, const char *segname, |
| 8937 | uint64_t addr, uint64_t size, uint32_t offset, |
| 8938 | uint32_t align, uint32_t reloff, uint32_t nreloc, |
| 8939 | uint32_t flags, uint32_t reserved1, uint32_t reserved2, |
| 8940 | uint32_t cmd, const char *sg_segname, |
| 8941 | uint32_t filetype, uint32_t object_size, |
| 8942 | bool verbose) { |
| 8943 | outs() << "Section\n"; |
| 8944 | outs() << " sectname " << format("%.16s\n", sectname); |
| 8945 | outs() << " segname " << format("%.16s", segname); |
| 8946 | if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0) |
| 8947 | outs() << " (does not match segment)\n"; |
| 8948 | else |
| 8949 | outs() << "\n"; |
| 8950 | if (cmd == MachO::LC_SEGMENT_64) { |
| 8951 | outs() << " addr " << format("0x%016" PRIx64"l" "x", addr) << "\n"; |
| 8952 | outs() << " size " << format("0x%016" PRIx64"l" "x", size); |
| 8953 | } else { |
| 8954 | outs() << " addr " << format("0x%08" PRIx64"l" "x", addr) << "\n"; |
| 8955 | outs() << " size " << format("0x%08" PRIx64"l" "x", size); |
| 8956 | } |
| 8957 | if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size) |
| 8958 | outs() << " (past end of file)\n"; |
| 8959 | else |
| 8960 | outs() << "\n"; |
| 8961 | outs() << " offset " << offset; |
| 8962 | if (offset > object_size) |
| 8963 | outs() << " (past end of file)\n"; |
| 8964 | else |
| 8965 | outs() << "\n"; |
| 8966 | uint32_t align_shifted = 1 << align; |
| 8967 | outs() << " align 2^" << align << " (" << align_shifted << ")\n"; |
| 8968 | outs() << " reloff " << reloff; |
| 8969 | if (reloff > object_size) |
| 8970 | outs() << " (past end of file)\n"; |
| 8971 | else |
| 8972 | outs() << "\n"; |
| 8973 | outs() << " nreloc " << nreloc; |
| 8974 | if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size) |
| 8975 | outs() << " (past end of file)\n"; |
| 8976 | else |
| 8977 | outs() << "\n"; |
| 8978 | uint32_t section_type = flags & MachO::SECTION_TYPE; |
| 8979 | if (verbose) { |
| 8980 | outs() << " type"; |
| 8981 | if (section_type == MachO::S_REGULAR) |
| 8982 | outs() << " S_REGULAR\n"; |
| 8983 | else if (section_type == MachO::S_ZEROFILL) |
| 8984 | outs() << " S_ZEROFILL\n"; |
| 8985 | else if (section_type == MachO::S_CSTRING_LITERALS) |
| 8986 | outs() << " S_CSTRING_LITERALS\n"; |
| 8987 | else if (section_type == MachO::S_4BYTE_LITERALS) |
| 8988 | outs() << " S_4BYTE_LITERALS\n"; |
| 8989 | else if (section_type == MachO::S_8BYTE_LITERALS) |
| 8990 | outs() << " S_8BYTE_LITERALS\n"; |
| 8991 | else if (section_type == MachO::S_16BYTE_LITERALS) |
| 8992 | outs() << " S_16BYTE_LITERALS\n"; |
| 8993 | else if (section_type == MachO::S_LITERAL_POINTERS) |
| 8994 | outs() << " S_LITERAL_POINTERS\n"; |
| 8995 | else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS) |
| 8996 | outs() << " S_NON_LAZY_SYMBOL_POINTERS\n"; |
| 8997 | else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS) |
| 8998 | outs() << " S_LAZY_SYMBOL_POINTERS\n"; |
| 8999 | else if (section_type == MachO::S_SYMBOL_STUBS) |
| 9000 | outs() << " S_SYMBOL_STUBS\n"; |
| 9001 | else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS) |
| 9002 | outs() << " S_MOD_INIT_FUNC_POINTERS\n"; |
| 9003 | else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS) |
| 9004 | outs() << " S_MOD_TERM_FUNC_POINTERS\n"; |
| 9005 | else if (section_type == MachO::S_COALESCED) |
| 9006 | outs() << " S_COALESCED\n"; |
| 9007 | else if (section_type == MachO::S_INTERPOSING) |
| 9008 | outs() << " S_INTERPOSING\n"; |
| 9009 | else if (section_type == MachO::S_DTRACE_DOF) |
| 9010 | outs() << " S_DTRACE_DOF\n"; |
| 9011 | else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS) |
| 9012 | outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n"; |
| 9013 | else if (section_type == MachO::S_THREAD_LOCAL_REGULAR) |
| 9014 | outs() << " S_THREAD_LOCAL_REGULAR\n"; |
| 9015 | else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL) |
| 9016 | outs() << " S_THREAD_LOCAL_ZEROFILL\n"; |
| 9017 | else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES) |
| 9018 | outs() << " S_THREAD_LOCAL_VARIABLES\n"; |
| 9019 | else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) |
| 9020 | outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n"; |
| 9021 | else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS) |
| 9022 | outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n"; |
| 9023 | else if (section_type == MachO::S_INIT_FUNC_OFFSETS) |
| 9024 | outs() << " S_INIT_FUNC_OFFSETS\n"; |
| 9025 | else |
| 9026 | outs() << format("0x%08" PRIx32"x", section_type) << "\n"; |
| 9027 | outs() << "attributes"; |
| 9028 | uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES; |
| 9029 | if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS) |
| 9030 | outs() << " PURE_INSTRUCTIONS"; |
| 9031 | if (section_attributes & MachO::S_ATTR_NO_TOC) |
| 9032 | outs() << " NO_TOC"; |
| 9033 | if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS) |
| 9034 | outs() << " STRIP_STATIC_SYMS"; |
| 9035 | if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP) |
| 9036 | outs() << " NO_DEAD_STRIP"; |
| 9037 | if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT) |
| 9038 | outs() << " LIVE_SUPPORT"; |
| 9039 | if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE) |
| 9040 | outs() << " SELF_MODIFYING_CODE"; |
| 9041 | if (section_attributes & MachO::S_ATTR_DEBUG) |
| 9042 | outs() << " DEBUG"; |
| 9043 | if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS) |
| 9044 | outs() << " SOME_INSTRUCTIONS"; |
| 9045 | if (section_attributes & MachO::S_ATTR_EXT_RELOC) |
| 9046 | outs() << " EXT_RELOC"; |
| 9047 | if (section_attributes & MachO::S_ATTR_LOC_RELOC) |
| 9048 | outs() << " LOC_RELOC"; |
| 9049 | if (section_attributes == 0) |
| 9050 | outs() << " (none)"; |
| 9051 | outs() << "\n"; |
| 9052 | } else |
| 9053 | outs() << " flags " << format("0x%08" PRIx32"x", flags) << "\n"; |
| 9054 | outs() << " reserved1 " << reserved1; |
| 9055 | if (section_type == MachO::S_SYMBOL_STUBS || |
| 9056 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
| 9057 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
| 9058 | section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
| 9059 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) |
| 9060 | outs() << " (index into indirect symbol table)\n"; |
| 9061 | else |
| 9062 | outs() << "\n"; |
| 9063 | outs() << " reserved2 " << reserved2; |
| 9064 | if (section_type == MachO::S_SYMBOL_STUBS) |
| 9065 | outs() << " (size of stubs)\n"; |
| 9066 | else |
| 9067 | outs() << "\n"; |
| 9068 | } |
| 9069 | |
| 9070 | static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit, |
| 9071 | uint32_t object_size) { |
| 9072 | outs() << " cmd LC_SYMTAB\n"; |
| 9073 | outs() << " cmdsize " << st.cmdsize; |
| 9074 | if (st.cmdsize != sizeof(struct MachO::symtab_command)) |
| 9075 | outs() << " Incorrect size\n"; |
| 9076 | else |
| 9077 | outs() << "\n"; |
| 9078 | outs() << " symoff " << st.symoff; |
| 9079 | if (st.symoff > object_size) |
| 9080 | outs() << " (past end of file)\n"; |
| 9081 | else |
| 9082 | outs() << "\n"; |
| 9083 | outs() << " nsyms " << st.nsyms; |
| 9084 | uint64_t big_size; |
| 9085 | if (Is64Bit) { |
| 9086 | big_size = st.nsyms; |
| 9087 | big_size *= sizeof(struct MachO::nlist_64); |
| 9088 | big_size += st.symoff; |
| 9089 | if (big_size > object_size) |
| 9090 | outs() << " (past end of file)\n"; |
| 9091 | else |
| 9092 | outs() << "\n"; |
| 9093 | } else { |
| 9094 | big_size = st.nsyms; |
| 9095 | big_size *= sizeof(struct MachO::nlist); |
| 9096 | big_size += st.symoff; |
| 9097 | if (big_size > object_size) |
| 9098 | outs() << " (past end of file)\n"; |
| 9099 | else |
| 9100 | outs() << "\n"; |
| 9101 | } |
| 9102 | outs() << " stroff " << st.stroff; |
| 9103 | if (st.stroff > object_size) |
| 9104 | outs() << " (past end of file)\n"; |
| 9105 | else |
| 9106 | outs() << "\n"; |
| 9107 | outs() << " strsize " << st.strsize; |
| 9108 | big_size = st.stroff; |
| 9109 | big_size += st.strsize; |
| 9110 | if (big_size > object_size) |
| 9111 | outs() << " (past end of file)\n"; |
| 9112 | else |
| 9113 | outs() << "\n"; |
| 9114 | } |
| 9115 | |
| 9116 | static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst, |
| 9117 | uint32_t nsyms, uint32_t object_size, |
| 9118 | bool Is64Bit) { |
| 9119 | outs() << " cmd LC_DYSYMTAB\n"; |
| 9120 | outs() << " cmdsize " << dyst.cmdsize; |
| 9121 | if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command)) |
| 9122 | outs() << " Incorrect size\n"; |
| 9123 | else |
| 9124 | outs() << "\n"; |
| 9125 | outs() << " ilocalsym " << dyst.ilocalsym; |
| 9126 | if (dyst.ilocalsym > nsyms) |
| 9127 | outs() << " (greater than the number of symbols)\n"; |
| 9128 | else |
| 9129 | outs() << "\n"; |
| 9130 | outs() << " nlocalsym " << dyst.nlocalsym; |
| 9131 | uint64_t big_size; |
| 9132 | big_size = dyst.ilocalsym; |
| 9133 | big_size += dyst.nlocalsym; |
| 9134 | if (big_size > nsyms) |
| 9135 | outs() << " (past the end of the symbol table)\n"; |
| 9136 | else |
| 9137 | outs() << "\n"; |
| 9138 | outs() << " iextdefsym " << dyst.iextdefsym; |
| 9139 | if (dyst.iextdefsym > nsyms) |
| 9140 | outs() << " (greater than the number of symbols)\n"; |
| 9141 | else |
| 9142 | outs() << "\n"; |
| 9143 | outs() << " nextdefsym " << dyst.nextdefsym; |
| 9144 | big_size = dyst.iextdefsym; |
| 9145 | big_size += dyst.nextdefsym; |
| 9146 | if (big_size > nsyms) |
| 9147 | outs() << " (past the end of the symbol table)\n"; |
| 9148 | else |
| 9149 | outs() << "\n"; |
| 9150 | outs() << " iundefsym " << dyst.iundefsym; |
| 9151 | if (dyst.iundefsym > nsyms) |
| 9152 | outs() << " (greater than the number of symbols)\n"; |
| 9153 | else |
| 9154 | outs() << "\n"; |
| 9155 | outs() << " nundefsym " << dyst.nundefsym; |
| 9156 | big_size = dyst.iundefsym; |
| 9157 | big_size += dyst.nundefsym; |
| 9158 | if (big_size > nsyms) |
| 9159 | outs() << " (past the end of the symbol table)\n"; |
| 9160 | else |
| 9161 | outs() << "\n"; |
| 9162 | outs() << " tocoff " << dyst.tocoff; |
| 9163 | if (dyst.tocoff > object_size) |
| 9164 | outs() << " (past end of file)\n"; |
| 9165 | else |
| 9166 | outs() << "\n"; |
| 9167 | outs() << " ntoc " << dyst.ntoc; |
| 9168 | big_size = dyst.ntoc; |
| 9169 | big_size *= sizeof(struct MachO::dylib_table_of_contents); |
| 9170 | big_size += dyst.tocoff; |
| 9171 | if (big_size > object_size) |
| 9172 | outs() << " (past end of file)\n"; |
| 9173 | else |
| 9174 | outs() << "\n"; |
| 9175 | outs() << " modtaboff " << dyst.modtaboff; |
| 9176 | if (dyst.modtaboff > object_size) |
| 9177 | outs() << " (past end of file)\n"; |
| 9178 | else |
| 9179 | outs() << "\n"; |
| 9180 | outs() << " nmodtab " << dyst.nmodtab; |
| 9181 | uint64_t modtabend; |
| 9182 | if (Is64Bit) { |
| 9183 | modtabend = dyst.nmodtab; |
| 9184 | modtabend *= sizeof(struct MachO::dylib_module_64); |
| 9185 | modtabend += dyst.modtaboff; |
| 9186 | } else { |
| 9187 | modtabend = dyst.nmodtab; |
| 9188 | modtabend *= sizeof(struct MachO::dylib_module); |
| 9189 | modtabend += dyst.modtaboff; |
| 9190 | } |
| 9191 | if (modtabend > object_size) |
| 9192 | outs() << " (past end of file)\n"; |
| 9193 | else |
| 9194 | outs() << "\n"; |
| 9195 | outs() << " extrefsymoff " << dyst.extrefsymoff; |
| 9196 | if (dyst.extrefsymoff > object_size) |
| 9197 | outs() << " (past end of file)\n"; |
| 9198 | else |
| 9199 | outs() << "\n"; |
| 9200 | outs() << " nextrefsyms " << dyst.nextrefsyms; |
| 9201 | big_size = dyst.nextrefsyms; |
| 9202 | big_size *= sizeof(struct MachO::dylib_reference); |
| 9203 | big_size += dyst.extrefsymoff; |
| 9204 | if (big_size > object_size) |
| 9205 | outs() << " (past end of file)\n"; |
| 9206 | else |
| 9207 | outs() << "\n"; |
| 9208 | outs() << " indirectsymoff " << dyst.indirectsymoff; |
| 9209 | if (dyst.indirectsymoff > object_size) |
| 9210 | outs() << " (past end of file)\n"; |
| 9211 | else |
| 9212 | outs() << "\n"; |
| 9213 | outs() << " nindirectsyms " << dyst.nindirectsyms; |
| 9214 | big_size = dyst.nindirectsyms; |
| 9215 | big_size *= sizeof(uint32_t); |
| 9216 | big_size += dyst.indirectsymoff; |
| 9217 | if (big_size > object_size) |
| 9218 | outs() << " (past end of file)\n"; |
| 9219 | else |
| 9220 | outs() << "\n"; |
| 9221 | outs() << " extreloff " << dyst.extreloff; |
| 9222 | if (dyst.extreloff > object_size) |
| 9223 | outs() << " (past end of file)\n"; |
| 9224 | else |
| 9225 | outs() << "\n"; |
| 9226 | outs() << " nextrel " << dyst.nextrel; |
| 9227 | big_size = dyst.nextrel; |
| 9228 | big_size *= sizeof(struct MachO::relocation_info); |
| 9229 | big_size += dyst.extreloff; |
| 9230 | if (big_size > object_size) |
| 9231 | outs() << " (past end of file)\n"; |
| 9232 | else |
| 9233 | outs() << "\n"; |
| 9234 | outs() << " locreloff " << dyst.locreloff; |
| 9235 | if (dyst.locreloff > object_size) |
| 9236 | outs() << " (past end of file)\n"; |
| 9237 | else |
| 9238 | outs() << "\n"; |
| 9239 | outs() << " nlocrel " << dyst.nlocrel; |
| 9240 | big_size = dyst.nlocrel; |
| 9241 | big_size *= sizeof(struct MachO::relocation_info); |
| 9242 | big_size += dyst.locreloff; |
| 9243 | if (big_size > object_size) |
| 9244 | outs() << " (past end of file)\n"; |
| 9245 | else |
| 9246 | outs() << "\n"; |
| 9247 | } |
| 9248 | |
| 9249 | static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc, |
| 9250 | uint32_t object_size) { |
| 9251 | if (dc.cmd == MachO::LC_DYLD_INFO) |
| 9252 | outs() << " cmd LC_DYLD_INFO\n"; |
| 9253 | else |
| 9254 | outs() << " cmd LC_DYLD_INFO_ONLY\n"; |
| 9255 | outs() << " cmdsize " << dc.cmdsize; |
| 9256 | if (dc.cmdsize != sizeof(struct MachO::dyld_info_command)) |
| 9257 | outs() << " Incorrect size\n"; |
| 9258 | else |
| 9259 | outs() << "\n"; |
| 9260 | outs() << " rebase_off " << dc.rebase_off; |
| 9261 | if (dc.rebase_off > object_size) |
| 9262 | outs() << " (past end of file)\n"; |
| 9263 | else |
| 9264 | outs() << "\n"; |
| 9265 | outs() << " rebase_size " << dc.rebase_size; |
| 9266 | uint64_t big_size; |
| 9267 | big_size = dc.rebase_off; |
| 9268 | big_size += dc.rebase_size; |
| 9269 | if (big_size > object_size) |
| 9270 | outs() << " (past end of file)\n"; |
| 9271 | else |
| 9272 | outs() << "\n"; |
| 9273 | outs() << " bind_off " << dc.bind_off; |
| 9274 | if (dc.bind_off > object_size) |
| 9275 | outs() << " (past end of file)\n"; |
| 9276 | else |
| 9277 | outs() << "\n"; |
| 9278 | outs() << " bind_size " << dc.bind_size; |
| 9279 | big_size = dc.bind_off; |
| 9280 | big_size += dc.bind_size; |
| 9281 | if (big_size > object_size) |
| 9282 | outs() << " (past end of file)\n"; |
| 9283 | else |
| 9284 | outs() << "\n"; |
| 9285 | outs() << " weak_bind_off " << dc.weak_bind_off; |
| 9286 | if (dc.weak_bind_off > object_size) |
| 9287 | outs() << " (past end of file)\n"; |
| 9288 | else |
| 9289 | outs() << "\n"; |
| 9290 | outs() << " weak_bind_size " << dc.weak_bind_size; |
| 9291 | big_size = dc.weak_bind_off; |
| 9292 | big_size += dc.weak_bind_size; |
| 9293 | if (big_size > object_size) |
| 9294 | outs() << " (past end of file)\n"; |
| 9295 | else |
| 9296 | outs() << "\n"; |
| 9297 | outs() << " lazy_bind_off " << dc.lazy_bind_off; |
| 9298 | if (dc.lazy_bind_off > object_size) |
| 9299 | outs() << " (past end of file)\n"; |
| 9300 | else |
| 9301 | outs() << "\n"; |
| 9302 | outs() << " lazy_bind_size " << dc.lazy_bind_size; |
| 9303 | big_size = dc.lazy_bind_off; |
| 9304 | big_size += dc.lazy_bind_size; |
| 9305 | if (big_size > object_size) |
| 9306 | outs() << " (past end of file)\n"; |
| 9307 | else |
| 9308 | outs() << "\n"; |
| 9309 | outs() << " export_off " << dc.export_off; |
| 9310 | if (dc.export_off > object_size) |
| 9311 | outs() << " (past end of file)\n"; |
| 9312 | else |
| 9313 | outs() << "\n"; |
| 9314 | outs() << " export_size " << dc.export_size; |
| 9315 | big_size = dc.export_off; |
| 9316 | big_size += dc.export_size; |
| 9317 | if (big_size > object_size) |
| 9318 | outs() << " (past end of file)\n"; |
| 9319 | else |
| 9320 | outs() << "\n"; |
| 9321 | } |
| 9322 | |
| 9323 | static void PrintDyldLoadCommand(MachO::dylinker_command dyld, |
| 9324 | const char *Ptr) { |
| 9325 | if (dyld.cmd == MachO::LC_ID_DYLINKER) |
| 9326 | outs() << " cmd LC_ID_DYLINKER\n"; |
| 9327 | else if (dyld.cmd == MachO::LC_LOAD_DYLINKER) |
| 9328 | outs() << " cmd LC_LOAD_DYLINKER\n"; |
| 9329 | else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT) |
| 9330 | outs() << " cmd LC_DYLD_ENVIRONMENT\n"; |
| 9331 | else |
| 9332 | outs() << " cmd ?(" << dyld.cmd << ")\n"; |
| 9333 | outs() << " cmdsize " << dyld.cmdsize; |
| 9334 | if (dyld.cmdsize < sizeof(struct MachO::dylinker_command)) |
| 9335 | outs() << " Incorrect size\n"; |
| 9336 | else |
| 9337 | outs() << "\n"; |
| 9338 | if (dyld.name >= dyld.cmdsize) |
| 9339 | outs() << " name ?(bad offset " << dyld.name << ")\n"; |
| 9340 | else { |
| 9341 | const char *P = (const char *)(Ptr) + dyld.name; |
| 9342 | outs() << " name " << P << " (offset " << dyld.name << ")\n"; |
| 9343 | } |
| 9344 | } |
| 9345 | |
| 9346 | static void PrintUuidLoadCommand(MachO::uuid_command uuid) { |
| 9347 | outs() << " cmd LC_UUID\n"; |
| 9348 | outs() << " cmdsize " << uuid.cmdsize; |
| 9349 | if (uuid.cmdsize != sizeof(struct MachO::uuid_command)) |
| 9350 | outs() << " Incorrect size\n"; |
| 9351 | else |
| 9352 | outs() << "\n"; |
| 9353 | outs() << " uuid "; |
| 9354 | for (int i = 0; i < 16; ++i) { |
| 9355 | outs() << format("%02" PRIX32"X", uuid.uuid[i]); |
| 9356 | if (i == 3 || i == 5 || i == 7 || i == 9) |
| 9357 | outs() << "-"; |
| 9358 | } |
| 9359 | outs() << "\n"; |
| 9360 | } |
| 9361 | |
| 9362 | static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) { |
| 9363 | outs() << " cmd LC_RPATH\n"; |
| 9364 | outs() << " cmdsize " << rpath.cmdsize; |
| 9365 | if (rpath.cmdsize < sizeof(struct MachO::rpath_command)) |
| 9366 | outs() << " Incorrect size\n"; |
| 9367 | else |
| 9368 | outs() << "\n"; |
| 9369 | if (rpath.path >= rpath.cmdsize) |
| 9370 | outs() << " path ?(bad offset " << rpath.path << ")\n"; |
| 9371 | else { |
| 9372 | const char *P = (const char *)(Ptr) + rpath.path; |
| 9373 | outs() << " path " << P << " (offset " << rpath.path << ")\n"; |
| 9374 | } |
| 9375 | } |
| 9376 | |
| 9377 | static void PrintVersionMinLoadCommand(MachO::version_min_command vd) { |
| 9378 | StringRef LoadCmdName; |
| 9379 | switch (vd.cmd) { |
| 9380 | case MachO::LC_VERSION_MIN_MACOSX: |
| 9381 | LoadCmdName = "LC_VERSION_MIN_MACOSX"; |
| 9382 | break; |
| 9383 | case MachO::LC_VERSION_MIN_IPHONEOS: |
| 9384 | LoadCmdName = "LC_VERSION_MIN_IPHONEOS"; |
| 9385 | break; |
| 9386 | case MachO::LC_VERSION_MIN_TVOS: |
| 9387 | LoadCmdName = "LC_VERSION_MIN_TVOS"; |
| 9388 | break; |
| 9389 | case MachO::LC_VERSION_MIN_WATCHOS: |
| 9390 | LoadCmdName = "LC_VERSION_MIN_WATCHOS"; |
| 9391 | break; |
| 9392 | default: |
| 9393 | llvm_unreachable("Unknown version min load command")::llvm::llvm_unreachable_internal("Unknown version min load command" , "llvm/tools/llvm-objdump/MachODump.cpp", 9393); |
| 9394 | } |
| 9395 | |
| 9396 | outs() << " cmd " << LoadCmdName << '\n'; |
| 9397 | outs() << " cmdsize " << vd.cmdsize; |
| 9398 | if (vd.cmdsize != sizeof(struct MachO::version_min_command)) |
| 9399 | outs() << " Incorrect size\n"; |
| 9400 | else |
| 9401 | outs() << "\n"; |
| 9402 | outs() << " version " |
| 9403 | << MachOObjectFile::getVersionMinMajor(vd, false) << "." |
| 9404 | << MachOObjectFile::getVersionMinMinor(vd, false); |
| 9405 | uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false); |
| 9406 | if (Update != 0) |
| 9407 | outs() << "." << Update; |
| 9408 | outs() << "\n"; |
| 9409 | if (vd.sdk == 0) |
| 9410 | outs() << " sdk n/a"; |
| 9411 | else { |
| 9412 | outs() << " sdk " |
| 9413 | << MachOObjectFile::getVersionMinMajor(vd, true) << "." |
| 9414 | << MachOObjectFile::getVersionMinMinor(vd, true); |
| 9415 | } |
| 9416 | Update = MachOObjectFile::getVersionMinUpdate(vd, true); |
| 9417 | if (Update != 0) |
| 9418 | outs() << "." << Update; |
| 9419 | outs() << "\n"; |
| 9420 | } |
| 9421 | |
| 9422 | static void PrintNoteLoadCommand(MachO::note_command Nt) { |
| 9423 | outs() << " cmd LC_NOTE\n"; |
| 9424 | outs() << " cmdsize " << Nt.cmdsize; |
| 9425 | if (Nt.cmdsize != sizeof(struct MachO::note_command)) |
| 9426 | outs() << " Incorrect size\n"; |
| 9427 | else |
| 9428 | outs() << "\n"; |
| 9429 | const char *d = Nt.data_owner; |
| 9430 | outs() << "data_owner " << format("%.16s\n", d); |
| 9431 | outs() << " offset " << Nt.offset << "\n"; |
| 9432 | outs() << " size " << Nt.size << "\n"; |
| 9433 | } |
| 9434 | |
| 9435 | static void PrintBuildToolVersion(MachO::build_tool_version bv, bool verbose) { |
| 9436 | outs() << " tool "; |
| 9437 | if (verbose) |
| 9438 | outs() << MachOObjectFile::getBuildTool(bv.tool); |
| 9439 | else |
| 9440 | outs() << bv.tool; |
| 9441 | outs() << "\n"; |
| 9442 | outs() << " version " << MachOObjectFile::getVersionString(bv.version) |
| 9443 | << "\n"; |
| 9444 | } |
| 9445 | |
| 9446 | static void PrintBuildVersionLoadCommand(const MachOObjectFile *obj, |
| 9447 | MachO::build_version_command bd, |
| 9448 | bool verbose) { |
| 9449 | outs() << " cmd LC_BUILD_VERSION\n"; |
| 9450 | outs() << " cmdsize " << bd.cmdsize; |
| 9451 | if (bd.cmdsize != |
| 9452 | sizeof(struct MachO::build_version_command) + |
| 9453 | bd.ntools * sizeof(struct MachO::build_tool_version)) |
| 9454 | outs() << " Incorrect size\n"; |
| 9455 | else |
| 9456 | outs() << "\n"; |
| 9457 | outs() << " platform "; |
| 9458 | if (verbose) |
| 9459 | outs() << MachOObjectFile::getBuildPlatform(bd.platform); |
| 9460 | else |
| 9461 | outs() << bd.platform; |
| 9462 | outs() << "\n"; |
| 9463 | if (bd.sdk) |
| 9464 | outs() << " sdk " << MachOObjectFile::getVersionString(bd.sdk) |
| 9465 | << "\n"; |
| 9466 | else |
| 9467 | outs() << " sdk n/a\n"; |
| 9468 | outs() << " minos " << MachOObjectFile::getVersionString(bd.minos) |
| 9469 | << "\n"; |
| 9470 | outs() << " ntools " << bd.ntools << "\n"; |
| 9471 | for (unsigned i = 0; i < bd.ntools; ++i) { |
| 9472 | MachO::build_tool_version bv = obj->getBuildToolVersion(i); |
| 9473 | PrintBuildToolVersion(bv, verbose); |
| 9474 | } |
| 9475 | } |
| 9476 | |
| 9477 | static void PrintSourceVersionCommand(MachO::source_version_command sd) { |
| 9478 | outs() << " cmd LC_SOURCE_VERSION\n"; |
| 9479 | outs() << " cmdsize " << sd.cmdsize; |
| 9480 | if (sd.cmdsize != sizeof(struct MachO::source_version_command)) |
| 9481 | outs() << " Incorrect size\n"; |
| 9482 | else |
| 9483 | outs() << "\n"; |
| 9484 | uint64_t a = (sd.version >> 40) & 0xffffff; |
| 9485 | uint64_t b = (sd.version >> 30) & 0x3ff; |
| 9486 | uint64_t c = (sd.version >> 20) & 0x3ff; |
| 9487 | uint64_t d = (sd.version >> 10) & 0x3ff; |
| 9488 | uint64_t e = sd.version & 0x3ff; |
| 9489 | outs() << " version " << a << "." << b; |
| 9490 | if (e != 0) |
| 9491 | outs() << "." << c << "." << d << "." << e; |
| 9492 | else if (d != 0) |
| 9493 | outs() << "." << c << "." << d; |
| 9494 | else if (c != 0) |
| 9495 | outs() << "." << c; |
| 9496 | outs() << "\n"; |
| 9497 | } |
| 9498 | |
| 9499 | static void PrintEntryPointCommand(MachO::entry_point_command ep) { |
| 9500 | outs() << " cmd LC_MAIN\n"; |
| 9501 | outs() << " cmdsize " << ep.cmdsize; |
| 9502 | if (ep.cmdsize != sizeof(struct MachO::entry_point_command)) |
| 9503 | outs() << " Incorrect size\n"; |
| 9504 | else |
| 9505 | outs() << "\n"; |
| 9506 | outs() << " entryoff " << ep.entryoff << "\n"; |
| 9507 | outs() << " stacksize " << ep.stacksize << "\n"; |
| 9508 | } |
| 9509 | |
| 9510 | static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec, |
| 9511 | uint32_t object_size) { |
| 9512 | outs() << " cmd LC_ENCRYPTION_INFO\n"; |
| 9513 | outs() << " cmdsize " << ec.cmdsize; |
| 9514 | if (ec.cmdsize != sizeof(struct MachO::encryption_info_command)) |
| 9515 | outs() << " Incorrect size\n"; |
| 9516 | else |
| 9517 | outs() << "\n"; |
| 9518 | outs() << " cryptoff " << ec.cryptoff; |
| 9519 | if (ec.cryptoff > object_size) |
| 9520 | outs() << " (past end of file)\n"; |
| 9521 | else |
| 9522 | outs() << "\n"; |
| 9523 | outs() << " cryptsize " << ec.cryptsize; |
| 9524 | if (ec.cryptsize > object_size) |
| 9525 | outs() << " (past end of file)\n"; |
| 9526 | else |
| 9527 | outs() << "\n"; |
| 9528 | outs() << " cryptid " << ec.cryptid << "\n"; |
| 9529 | } |
| 9530 | |
| 9531 | static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec, |
| 9532 | uint32_t object_size) { |
| 9533 | outs() << " cmd LC_ENCRYPTION_INFO_64\n"; |
| 9534 | outs() << " cmdsize " << ec.cmdsize; |
| 9535 | if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64)) |
| 9536 | outs() << " Incorrect size\n"; |
| 9537 | else |
| 9538 | outs() << "\n"; |
| 9539 | outs() << " cryptoff " << ec.cryptoff; |
| 9540 | if (ec.cryptoff > object_size) |
| 9541 | outs() << " (past end of file)\n"; |
| 9542 | else |
| 9543 | outs() << "\n"; |
| 9544 | outs() << " cryptsize " << ec.cryptsize; |
| 9545 | if (ec.cryptsize > object_size) |
| 9546 | outs() << " (past end of file)\n"; |
| 9547 | else |
| 9548 | outs() << "\n"; |
| 9549 | outs() << " cryptid " << ec.cryptid << "\n"; |
| 9550 | outs() << " pad " << ec.pad << "\n"; |
| 9551 | } |
| 9552 | |
| 9553 | static void PrintLinkerOptionCommand(MachO::linker_option_command lo, |
| 9554 | const char *Ptr) { |
| 9555 | outs() << " cmd LC_LINKER_OPTION\n"; |
| 9556 | outs() << " cmdsize " << lo.cmdsize; |
| 9557 | if (lo.cmdsize < sizeof(struct MachO::linker_option_command)) |
| 9558 | outs() << " Incorrect size\n"; |
| 9559 | else |
| 9560 | outs() << "\n"; |
| 9561 | outs() << " count " << lo.count << "\n"; |
| 9562 | const char *string = Ptr + sizeof(struct MachO::linker_option_command); |
| 9563 | uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command); |
| 9564 | uint32_t i = 0; |
| 9565 | while (left > 0) { |
| 9566 | while (*string == '\0' && left > 0) { |
| 9567 | string++; |
| 9568 | left--; |
| 9569 | } |
| 9570 | if (left > 0) { |
| 9571 | i++; |
| 9572 | outs() << " string #" << i << " " << format("%.*s\n", left, string); |
| 9573 | uint32_t NullPos = StringRef(string, left).find('\0'); |
| 9574 | uint32_t len = std::min(NullPos, left) + 1; |
| 9575 | string += len; |
| 9576 | left -= len; |
| 9577 | } |
| 9578 | } |
| 9579 | if (lo.count != i) |
| 9580 | outs() << " count " << lo.count << " does not match number of strings " |
| 9581 | << i << "\n"; |
| 9582 | } |
| 9583 | |
| 9584 | static void PrintSubFrameworkCommand(MachO::sub_framework_command sub, |
| 9585 | const char *Ptr) { |
| 9586 | outs() << " cmd LC_SUB_FRAMEWORK\n"; |
| 9587 | outs() << " cmdsize " << sub.cmdsize; |
| 9588 | if (sub.cmdsize < sizeof(struct MachO::sub_framework_command)) |
| 9589 | outs() << " Incorrect size\n"; |
| 9590 | else |
| 9591 | outs() << "\n"; |
| 9592 | if (sub.umbrella < sub.cmdsize) { |
| 9593 | const char *P = Ptr + sub.umbrella; |
| 9594 | outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n"; |
| 9595 | } else { |
| 9596 | outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n"; |
| 9597 | } |
| 9598 | } |
| 9599 | |
| 9600 | static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub, |
| 9601 | const char *Ptr) { |
| 9602 | outs() << " cmd LC_SUB_UMBRELLA\n"; |
| 9603 | outs() << " cmdsize " << sub.cmdsize; |
| 9604 | if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command)) |
| 9605 | outs() << " Incorrect size\n"; |
| 9606 | else |
| 9607 | outs() << "\n"; |
| 9608 | if (sub.sub_umbrella < sub.cmdsize) { |
| 9609 | const char *P = Ptr + sub.sub_umbrella; |
| 9610 | outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n"; |
| 9611 | } else { |
| 9612 | outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n"; |
| 9613 | } |
| 9614 | } |
| 9615 | |
| 9616 | static void PrintSubLibraryCommand(MachO::sub_library_command sub, |
| 9617 | const char *Ptr) { |
| 9618 | outs() << " cmd LC_SUB_LIBRARY\n"; |
| 9619 | outs() << " cmdsize " << sub.cmdsize; |
| 9620 | if (sub.cmdsize < sizeof(struct MachO::sub_library_command)) |
| 9621 | outs() << " Incorrect size\n"; |
| 9622 | else |
| 9623 | outs() << "\n"; |
| 9624 | if (sub.sub_library < sub.cmdsize) { |
| 9625 | const char *P = Ptr + sub.sub_library; |
| 9626 | outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n"; |
| 9627 | } else { |
| 9628 | outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n"; |
| 9629 | } |
| 9630 | } |
| 9631 | |
| 9632 | static void PrintSubClientCommand(MachO::sub_client_command sub, |
| 9633 | const char *Ptr) { |
| 9634 | outs() << " cmd LC_SUB_CLIENT\n"; |
| 9635 | outs() << " cmdsize " << sub.cmdsize; |
| 9636 | if (sub.cmdsize < sizeof(struct MachO::sub_client_command)) |
| 9637 | outs() << " Incorrect size\n"; |
| 9638 | else |
| 9639 | outs() << "\n"; |
| 9640 | if (sub.client < sub.cmdsize) { |
| 9641 | const char *P = Ptr + sub.client; |
| 9642 | outs() << " client " << P << " (offset " << sub.client << ")\n"; |
| 9643 | } else { |
| 9644 | outs() << " client ?(bad offset " << sub.client << ")\n"; |
| 9645 | } |
| 9646 | } |
| 9647 | |
| 9648 | static void PrintRoutinesCommand(MachO::routines_command r) { |
| 9649 | outs() << " cmd LC_ROUTINES\n"; |
| 9650 | outs() << " cmdsize " << r.cmdsize; |
| 9651 | if (r.cmdsize != sizeof(struct MachO::routines_command)) |
| 9652 | outs() << " Incorrect size\n"; |
| 9653 | else |
| 9654 | outs() << "\n"; |
| 9655 | outs() << " init_address " << format("0x%08" PRIx32"x", r.init_address) << "\n"; |
| 9656 | outs() << " init_module " << r.init_module << "\n"; |
| 9657 | outs() << " reserved1 " << r.reserved1 << "\n"; |
| 9658 | outs() << " reserved2 " << r.reserved2 << "\n"; |
| 9659 | outs() << " reserved3 " << r.reserved3 << "\n"; |
| 9660 | outs() << " reserved4 " << r.reserved4 << "\n"; |
| 9661 | outs() << " reserved5 " << r.reserved5 << "\n"; |
| 9662 | outs() << " reserved6 " << r.reserved6 << "\n"; |
| 9663 | } |
| 9664 | |
| 9665 | static void PrintRoutinesCommand64(MachO::routines_command_64 r) { |
| 9666 | outs() << " cmd LC_ROUTINES_64\n"; |
| 9667 | outs() << " cmdsize " << r.cmdsize; |
| 9668 | if (r.cmdsize != sizeof(struct MachO::routines_command_64)) |
| 9669 | outs() << " Incorrect size\n"; |
| 9670 | else |
| 9671 | outs() << "\n"; |
| 9672 | outs() << " init_address " << format("0x%016" PRIx64"l" "x", r.init_address) << "\n"; |
| 9673 | outs() << " init_module " << r.init_module << "\n"; |
| 9674 | outs() << " reserved1 " << r.reserved1 << "\n"; |
| 9675 | outs() << " reserved2 " << r.reserved2 << "\n"; |
| 9676 | outs() << " reserved3 " << r.reserved3 << "\n"; |
| 9677 | outs() << " reserved4 " << r.reserved4 << "\n"; |
| 9678 | outs() << " reserved5 " << r.reserved5 << "\n"; |
| 9679 | outs() << " reserved6 " << r.reserved6 << "\n"; |
| 9680 | } |
| 9681 | |
| 9682 | static void Print_x86_thread_state32_t(MachO::x86_thread_state32_t &cpu32) { |
| 9683 | outs() << "\t eax " << format("0x%08" PRIx32"x", cpu32.eax); |
| 9684 | outs() << " ebx " << format("0x%08" PRIx32"x", cpu32.ebx); |
| 9685 | outs() << " ecx " << format("0x%08" PRIx32"x", cpu32.ecx); |
| 9686 | outs() << " edx " << format("0x%08" PRIx32"x", cpu32.edx) << "\n"; |
| 9687 | outs() << "\t edi " << format("0x%08" PRIx32"x", cpu32.edi); |
| 9688 | outs() << " esi " << format("0x%08" PRIx32"x", cpu32.esi); |
| 9689 | outs() << " ebp " << format("0x%08" PRIx32"x", cpu32.ebp); |
| 9690 | outs() << " esp " << format("0x%08" PRIx32"x", cpu32.esp) << "\n"; |
| 9691 | outs() << "\t ss " << format("0x%08" PRIx32"x", cpu32.ss); |
| 9692 | outs() << " eflags " << format("0x%08" PRIx32"x", cpu32.eflags); |
| 9693 | outs() << " eip " << format("0x%08" PRIx32"x", cpu32.eip); |
| 9694 | outs() << " cs " << format("0x%08" PRIx32"x", cpu32.cs) << "\n"; |
| 9695 | outs() << "\t ds " << format("0x%08" PRIx32"x", cpu32.ds); |
| 9696 | outs() << " es " << format("0x%08" PRIx32"x", cpu32.es); |
| 9697 | outs() << " fs " << format("0x%08" PRIx32"x", cpu32.fs); |
| 9698 | outs() << " gs " << format("0x%08" PRIx32"x", cpu32.gs) << "\n"; |
| 9699 | } |
| 9700 | |
| 9701 | static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) { |
| 9702 | outs() << " rax " << format("0x%016" PRIx64"l" "x", cpu64.rax); |
| 9703 | outs() << " rbx " << format("0x%016" PRIx64"l" "x", cpu64.rbx); |
| 9704 | outs() << " rcx " << format("0x%016" PRIx64"l" "x", cpu64.rcx) << "\n"; |
| 9705 | outs() << " rdx " << format("0x%016" PRIx64"l" "x", cpu64.rdx); |
| 9706 | outs() << " rdi " << format("0x%016" PRIx64"l" "x", cpu64.rdi); |
| 9707 | outs() << " rsi " << format("0x%016" PRIx64"l" "x", cpu64.rsi) << "\n"; |
| 9708 | outs() << " rbp " << format("0x%016" PRIx64"l" "x", cpu64.rbp); |
| 9709 | outs() << " rsp " << format("0x%016" PRIx64"l" "x", cpu64.rsp); |
| 9710 | outs() << " r8 " << format("0x%016" PRIx64"l" "x", cpu64.r8) << "\n"; |
| 9711 | outs() << " r9 " << format("0x%016" PRIx64"l" "x", cpu64.r9); |
| 9712 | outs() << " r10 " << format("0x%016" PRIx64"l" "x", cpu64.r10); |
| 9713 | outs() << " r11 " << format("0x%016" PRIx64"l" "x", cpu64.r11) << "\n"; |
| 9714 | outs() << " r12 " << format("0x%016" PRIx64"l" "x", cpu64.r12); |
| 9715 | outs() << " r13 " << format("0x%016" PRIx64"l" "x", cpu64.r13); |
| 9716 | outs() << " r14 " << format("0x%016" PRIx64"l" "x", cpu64.r14) << "\n"; |
| 9717 | outs() << " r15 " << format("0x%016" PRIx64"l" "x", cpu64.r15); |
| 9718 | outs() << " rip " << format("0x%016" PRIx64"l" "x", cpu64.rip) << "\n"; |
| 9719 | outs() << "rflags " << format("0x%016" PRIx64"l" "x", cpu64.rflags); |
| 9720 | outs() << " cs " << format("0x%016" PRIx64"l" "x", cpu64.cs); |
| 9721 | outs() << " fs " << format("0x%016" PRIx64"l" "x", cpu64.fs) << "\n"; |
| 9722 | outs() << " gs " << format("0x%016" PRIx64"l" "x", cpu64.gs) << "\n"; |
| 9723 | } |
| 9724 | |
| 9725 | static void Print_mmst_reg(MachO::mmst_reg_t &r) { |
| 9726 | uint32_t f; |
| 9727 | outs() << "\t mmst_reg "; |
| 9728 | for (f = 0; f < 10; f++) |
| 9729 | outs() << format("%02" PRIx32"x", (r.mmst_reg[f] & 0xff)) << " "; |
| 9730 | outs() << "\n"; |
| 9731 | outs() << "\t mmst_rsrv "; |
| 9732 | for (f = 0; f < 6; f++) |
| 9733 | outs() << format("%02" PRIx32"x", (r.mmst_rsrv[f] & 0xff)) << " "; |
| 9734 | outs() << "\n"; |
| 9735 | } |
| 9736 | |
| 9737 | static void Print_xmm_reg(MachO::xmm_reg_t &r) { |
| 9738 | uint32_t f; |
| 9739 | outs() << "\t xmm_reg "; |
| 9740 | for (f = 0; f < 16; f++) |
| 9741 | outs() << format("%02" PRIx32"x", (r.xmm_reg[f] & 0xff)) << " "; |
| 9742 | outs() << "\n"; |
| 9743 | } |
| 9744 | |
| 9745 | static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) { |
| 9746 | outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0]; |
| 9747 | outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n"; |
| 9748 | outs() << "\t control: invalid " << fpu.fpu_fcw.invalid; |
| 9749 | outs() << " denorm " << fpu.fpu_fcw.denorm; |
| 9750 | outs() << " zdiv " << fpu.fpu_fcw.zdiv; |
| 9751 | outs() << " ovrfl " << fpu.fpu_fcw.ovrfl; |
| 9752 | outs() << " undfl " << fpu.fpu_fcw.undfl; |
| 9753 | outs() << " precis " << fpu.fpu_fcw.precis << "\n"; |
| 9754 | outs() << "\t\t pc "; |
| 9755 | if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B) |
| 9756 | outs() << "FP_PREC_24B "; |
| 9757 | else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B) |
| 9758 | outs() << "FP_PREC_53B "; |
| 9759 | else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B) |
| 9760 | outs() << "FP_PREC_64B "; |
| 9761 | else |
| 9762 | outs() << fpu.fpu_fcw.pc << " "; |
| 9763 | outs() << "rc "; |
| 9764 | if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR) |
| 9765 | outs() << "FP_RND_NEAR "; |
| 9766 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN) |
| 9767 | outs() << "FP_RND_DOWN "; |
| 9768 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP) |
| 9769 | outs() << "FP_RND_UP "; |
| 9770 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP) |
| 9771 | outs() << "FP_CHOP "; |
| 9772 | outs() << "\n"; |
| 9773 | outs() << "\t status: invalid " << fpu.fpu_fsw.invalid; |
| 9774 | outs() << " denorm " << fpu.fpu_fsw.denorm; |
| 9775 | outs() << " zdiv " << fpu.fpu_fsw.zdiv; |
| 9776 | outs() << " ovrfl " << fpu.fpu_fsw.ovrfl; |
| 9777 | outs() << " undfl " << fpu.fpu_fsw.undfl; |
| 9778 | outs() << " precis " << fpu.fpu_fsw.precis; |
| 9779 | outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n"; |
| 9780 | outs() << "\t errsumm " << fpu.fpu_fsw.errsumm; |
| 9781 | outs() << " c0 " << fpu.fpu_fsw.c0; |
| 9782 | outs() << " c1 " << fpu.fpu_fsw.c1; |
| 9783 | outs() << " c2 " << fpu.fpu_fsw.c2; |
| 9784 | outs() << " tos " << fpu.fpu_fsw.tos; |
| 9785 | outs() << " c3 " << fpu.fpu_fsw.c3; |
| 9786 | outs() << " busy " << fpu.fpu_fsw.busy << "\n"; |
| 9787 | outs() << "\t fpu_ftw " << format("0x%02" PRIx32"x", fpu.fpu_ftw); |
| 9788 | outs() << " fpu_rsrv1 " << format("0x%02" PRIx32"x", fpu.fpu_rsrv1); |
| 9789 | outs() << " fpu_fop " << format("0x%04" PRIx32"x", fpu.fpu_fop); |
| 9790 | outs() << " fpu_ip " << format("0x%08" PRIx32"x", fpu.fpu_ip) << "\n"; |
| 9791 | outs() << "\t fpu_cs " << format("0x%04" PRIx32"x", fpu.fpu_cs); |
| 9792 | outs() << " fpu_rsrv2 " << format("0x%04" PRIx32"x", fpu.fpu_rsrv2); |
| 9793 | outs() << " fpu_dp " << format("0x%08" PRIx32"x", fpu.fpu_dp); |
| 9794 | outs() << " fpu_ds " << format("0x%04" PRIx32"x", fpu.fpu_ds) << "\n"; |
| 9795 | outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32"x", fpu.fpu_rsrv3); |
| 9796 | outs() << " fpu_mxcsr " << format("0x%08" PRIx32"x", fpu.fpu_mxcsr); |
| 9797 | outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32"x", fpu.fpu_mxcsrmask); |
| 9798 | outs() << "\n"; |
| 9799 | outs() << "\t fpu_stmm0:\n"; |
| 9800 | Print_mmst_reg(fpu.fpu_stmm0); |
| 9801 | outs() << "\t fpu_stmm1:\n"; |
| 9802 | Print_mmst_reg(fpu.fpu_stmm1); |
| 9803 | outs() << "\t fpu_stmm2:\n"; |
| 9804 | Print_mmst_reg(fpu.fpu_stmm2); |
| 9805 | outs() << "\t fpu_stmm3:\n"; |
| 9806 | Print_mmst_reg(fpu.fpu_stmm3); |
| 9807 | outs() << "\t fpu_stmm4:\n"; |
| 9808 | Print_mmst_reg(fpu.fpu_stmm4); |
| 9809 | outs() << "\t fpu_stmm5:\n"; |
| 9810 | Print_mmst_reg(fpu.fpu_stmm5); |
| 9811 | outs() << "\t fpu_stmm6:\n"; |
| 9812 | Print_mmst_reg(fpu.fpu_stmm6); |
| 9813 | outs() << "\t fpu_stmm7:\n"; |
| 9814 | Print_mmst_reg(fpu.fpu_stmm7); |
| 9815 | outs() << "\t fpu_xmm0:\n"; |
| 9816 | Print_xmm_reg(fpu.fpu_xmm0); |
| 9817 | outs() << "\t fpu_xmm1:\n"; |
| 9818 | Print_xmm_reg(fpu.fpu_xmm1); |
| 9819 | outs() << "\t fpu_xmm2:\n"; |
| 9820 | Print_xmm_reg(fpu.fpu_xmm2); |
| 9821 | outs() << "\t fpu_xmm3:\n"; |
| 9822 | Print_xmm_reg(fpu.fpu_xmm3); |
| 9823 | outs() << "\t fpu_xmm4:\n"; |
| 9824 | Print_xmm_reg(fpu.fpu_xmm4); |
| 9825 | outs() << "\t fpu_xmm5:\n"; |
| 9826 | Print_xmm_reg(fpu.fpu_xmm5); |
| 9827 | outs() << "\t fpu_xmm6:\n"; |
| 9828 | Print_xmm_reg(fpu.fpu_xmm6); |
| 9829 | outs() << "\t fpu_xmm7:\n"; |
| 9830 | Print_xmm_reg(fpu.fpu_xmm7); |
| 9831 | outs() << "\t fpu_xmm8:\n"; |
| 9832 | Print_xmm_reg(fpu.fpu_xmm8); |
| 9833 | outs() << "\t fpu_xmm9:\n"; |
| 9834 | Print_xmm_reg(fpu.fpu_xmm9); |
| 9835 | outs() << "\t fpu_xmm10:\n"; |
| 9836 | Print_xmm_reg(fpu.fpu_xmm10); |
| 9837 | outs() << "\t fpu_xmm11:\n"; |
| 9838 | Print_xmm_reg(fpu.fpu_xmm11); |
| 9839 | outs() << "\t fpu_xmm12:\n"; |
| 9840 | Print_xmm_reg(fpu.fpu_xmm12); |
| 9841 | outs() << "\t fpu_xmm13:\n"; |
| 9842 | Print_xmm_reg(fpu.fpu_xmm13); |
| 9843 | outs() << "\t fpu_xmm14:\n"; |
| 9844 | Print_xmm_reg(fpu.fpu_xmm14); |
| 9845 | outs() << "\t fpu_xmm15:\n"; |
| 9846 | Print_xmm_reg(fpu.fpu_xmm15); |
| 9847 | outs() << "\t fpu_rsrv4:\n"; |
| 9848 | for (uint32_t f = 0; f < 6; f++) { |
| 9849 | outs() << "\t "; |
| 9850 | for (uint32_t g = 0; g < 16; g++) |
| 9851 | outs() << format("%02" PRIx32"x", fpu.fpu_rsrv4[f * g]) << " "; |
| 9852 | outs() << "\n"; |
| 9853 | } |
| 9854 | outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32"x", fpu.fpu_reserved1); |
| 9855 | outs() << "\n"; |
| 9856 | } |
| 9857 | |
| 9858 | static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) { |
| 9859 | outs() << "\t trapno " << format("0x%08" PRIx32"x", exc64.trapno); |
| 9860 | outs() << " err " << format("0x%08" PRIx32"x", exc64.err); |
| 9861 | outs() << " faultvaddr " << format("0x%016" PRIx64"l" "x", exc64.faultvaddr) << "\n"; |
| 9862 | } |
| 9863 | |
| 9864 | static void Print_arm_thread_state32_t(MachO::arm_thread_state32_t &cpu32) { |
| 9865 | outs() << "\t r0 " << format("0x%08" PRIx32"x", cpu32.r[0]); |
| 9866 | outs() << " r1 " << format("0x%08" PRIx32"x", cpu32.r[1]); |
| 9867 | outs() << " r2 " << format("0x%08" PRIx32"x", cpu32.r[2]); |
| 9868 | outs() << " r3 " << format("0x%08" PRIx32"x", cpu32.r[3]) << "\n"; |
| 9869 | outs() << "\t r4 " << format("0x%08" PRIx32"x", cpu32.r[4]); |
| 9870 | outs() << " r5 " << format("0x%08" PRIx32"x", cpu32.r[5]); |
| 9871 | outs() << " r6 " << format("0x%08" PRIx32"x", cpu32.r[6]); |
| 9872 | outs() << " r7 " << format("0x%08" PRIx32"x", cpu32.r[7]) << "\n"; |
| 9873 | outs() << "\t r8 " << format("0x%08" PRIx32"x", cpu32.r[8]); |
| 9874 | outs() << " r9 " << format("0x%08" PRIx32"x", cpu32.r[9]); |
| 9875 | outs() << " r10 " << format("0x%08" PRIx32"x", cpu32.r[10]); |
| 9876 | outs() << " r11 " << format("0x%08" PRIx32"x", cpu32.r[11]) << "\n"; |
| 9877 | outs() << "\t r12 " << format("0x%08" PRIx32"x", cpu32.r[12]); |
| 9878 | outs() << " sp " << format("0x%08" PRIx32"x", cpu32.sp); |
| 9879 | outs() << " lr " << format("0x%08" PRIx32"x", cpu32.lr); |
| 9880 | outs() << " pc " << format("0x%08" PRIx32"x", cpu32.pc) << "\n"; |
| 9881 | outs() << "\t cpsr " << format("0x%08" PRIx32"x", cpu32.cpsr) << "\n"; |
| 9882 | } |
| 9883 | |
| 9884 | static void Print_arm_thread_state64_t(MachO::arm_thread_state64_t &cpu64) { |
| 9885 | outs() << "\t x0 " << format("0x%016" PRIx64"l" "x", cpu64.x[0]); |
| 9886 | outs() << " x1 " << format("0x%016" PRIx64"l" "x", cpu64.x[1]); |
| 9887 | outs() << " x2 " << format("0x%016" PRIx64"l" "x", cpu64.x[2]) << "\n"; |
| 9888 | outs() << "\t x3 " << format("0x%016" PRIx64"l" "x", cpu64.x[3]); |
| 9889 | outs() << " x4 " << format("0x%016" PRIx64"l" "x", cpu64.x[4]); |
| 9890 | outs() << " x5 " << format("0x%016" PRIx64"l" "x", cpu64.x[5]) << "\n"; |
| 9891 | outs() << "\t x6 " << format("0x%016" PRIx64"l" "x", cpu64.x[6]); |
| 9892 | outs() << " x7 " << format("0x%016" PRIx64"l" "x", cpu64.x[7]); |
| 9893 | outs() << " x8 " << format("0x%016" PRIx64"l" "x", cpu64.x[8]) << "\n"; |
| 9894 | outs() << "\t x9 " << format("0x%016" PRIx64"l" "x", cpu64.x[9]); |
| 9895 | outs() << " x10 " << format("0x%016" PRIx64"l" "x", cpu64.x[10]); |
| 9896 | outs() << " x11 " << format("0x%016" PRIx64"l" "x", cpu64.x[11]) << "\n"; |
| 9897 | outs() << "\t x12 " << format("0x%016" PRIx64"l" "x", cpu64.x[12]); |
| 9898 | outs() << " x13 " << format("0x%016" PRIx64"l" "x", cpu64.x[13]); |
| 9899 | outs() << " x14 " << format("0x%016" PRIx64"l" "x", cpu64.x[14]) << "\n"; |
| 9900 | outs() << "\t x15 " << format("0x%016" PRIx64"l" "x", cpu64.x[15]); |
| 9901 | outs() << " x16 " << format("0x%016" PRIx64"l" "x", cpu64.x[16]); |
| 9902 | outs() << " x17 " << format("0x%016" PRIx64"l" "x", cpu64.x[17]) << "\n"; |
| 9903 | outs() << "\t x18 " << format("0x%016" PRIx64"l" "x", cpu64.x[18]); |
| 9904 | outs() << " x19 " << format("0x%016" PRIx64"l" "x", cpu64.x[19]); |
| 9905 | outs() << " x20 " << format("0x%016" PRIx64"l" "x", cpu64.x[20]) << "\n"; |
| 9906 | outs() << "\t x21 " << format("0x%016" PRIx64"l" "x", cpu64.x[21]); |
| 9907 | outs() << " x22 " << format("0x%016" PRIx64"l" "x", cpu64.x[22]); |
| 9908 | outs() << " x23 " << format("0x%016" PRIx64"l" "x", cpu64.x[23]) << "\n"; |
| 9909 | outs() << "\t x24 " << format("0x%016" PRIx64"l" "x", cpu64.x[24]); |
| 9910 | outs() << " x25 " << format("0x%016" PRIx64"l" "x", cpu64.x[25]); |
| 9911 | outs() << " x26 " << format("0x%016" PRIx64"l" "x", cpu64.x[26]) << "\n"; |
| 9912 | outs() << "\t x27 " << format("0x%016" PRIx64"l" "x", cpu64.x[27]); |
| 9913 | outs() << " x28 " << format("0x%016" PRIx64"l" "x", cpu64.x[28]); |
| 9914 | outs() << " fp " << format("0x%016" PRIx64"l" "x", cpu64.fp) << "\n"; |
| 9915 | outs() << "\t lr " << format("0x%016" PRIx64"l" "x", cpu64.lr); |
| 9916 | outs() << " sp " << format("0x%016" PRIx64"l" "x", cpu64.sp); |
| 9917 | outs() << " pc " << format("0x%016" PRIx64"l" "x", cpu64.pc) << "\n"; |
| 9918 | outs() << "\t cpsr " << format("0x%08" PRIx32"x", cpu64.cpsr) << "\n"; |
| 9919 | } |
| 9920 | |
| 9921 | static void PrintThreadCommand(MachO::thread_command t, const char *Ptr, |
| 9922 | bool isLittleEndian, uint32_t cputype) { |
| 9923 | if (t.cmd == MachO::LC_THREAD) |
| 9924 | outs() << " cmd LC_THREAD\n"; |
| 9925 | else if (t.cmd == MachO::LC_UNIXTHREAD) |
| 9926 | outs() << " cmd LC_UNIXTHREAD\n"; |
| 9927 | else |
| 9928 | outs() << " cmd " << t.cmd << " (unknown)\n"; |
| 9929 | outs() << " cmdsize " << t.cmdsize; |
| 9930 | if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t)) |
| 9931 | outs() << " Incorrect size\n"; |
| 9932 | else |
| 9933 | outs() << "\n"; |
| 9934 | |
| 9935 | const char *begin = Ptr + sizeof(struct MachO::thread_command); |
| 9936 | const char *end = Ptr + t.cmdsize; |
| 9937 | uint32_t flavor, count, left; |
| 9938 | if (cputype == MachO::CPU_TYPE_I386) { |
| 9939 | while (begin < end) { |
| 9940 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 9941 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
| 9942 | begin += sizeof(uint32_t); |
| 9943 | } else { |
| 9944 | flavor = 0; |
| 9945 | begin = end; |
| 9946 | } |
| 9947 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 9948 | sys::swapByteOrder(flavor); |
| 9949 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 9950 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
| 9951 | begin += sizeof(uint32_t); |
| 9952 | } else { |
| 9953 | count = 0; |
| 9954 | begin = end; |
| 9955 | } |
| 9956 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 9957 | sys::swapByteOrder(count); |
| 9958 | if (flavor == MachO::x86_THREAD_STATE32) { |
| 9959 | outs() << " flavor i386_THREAD_STATE\n"; |
| 9960 | if (count == MachO::x86_THREAD_STATE32_COUNT) |
| 9961 | outs() << " count i386_THREAD_STATE_COUNT\n"; |
| 9962 | else |
| 9963 | outs() << " count " << count |
| 9964 | << " (not x86_THREAD_STATE32_COUNT)\n"; |
| 9965 | MachO::x86_thread_state32_t cpu32; |
| 9966 | left = end - begin; |
| 9967 | if (left >= sizeof(MachO::x86_thread_state32_t)) { |
| 9968 | memcpy(&cpu32, begin, sizeof(MachO::x86_thread_state32_t)); |
| 9969 | begin += sizeof(MachO::x86_thread_state32_t); |
| 9970 | } else { |
| 9971 | memset(&cpu32, '\0', sizeof(MachO::x86_thread_state32_t)); |
| 9972 | memcpy(&cpu32, begin, left); |
| 9973 | begin += left; |
| 9974 | } |
| 9975 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 9976 | swapStruct(cpu32); |
| 9977 | Print_x86_thread_state32_t(cpu32); |
| 9978 | } else if (flavor == MachO::x86_THREAD_STATE) { |
| 9979 | outs() << " flavor x86_THREAD_STATE\n"; |
| 9980 | if (count == MachO::x86_THREAD_STATE_COUNT) |
| 9981 | outs() << " count x86_THREAD_STATE_COUNT\n"; |
| 9982 | else |
| 9983 | outs() << " count " << count |
| 9984 | << " (not x86_THREAD_STATE_COUNT)\n"; |
| 9985 | struct MachO::x86_thread_state_t ts; |
| 9986 | left = end - begin; |
| 9987 | if (left >= sizeof(MachO::x86_thread_state_t)) { |
| 9988 | memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); |
| 9989 | begin += sizeof(MachO::x86_thread_state_t); |
| 9990 | } else { |
| 9991 | memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); |
| 9992 | memcpy(&ts, begin, left); |
| 9993 | begin += left; |
| 9994 | } |
| 9995 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 9996 | swapStruct(ts); |
| 9997 | if (ts.tsh.flavor == MachO::x86_THREAD_STATE32) { |
| 9998 | outs() << "\t tsh.flavor x86_THREAD_STATE32 "; |
| 9999 | if (ts.tsh.count == MachO::x86_THREAD_STATE32_COUNT) |
| 10000 | outs() << "tsh.count x86_THREAD_STATE32_COUNT\n"; |
| 10001 | else |
| 10002 | outs() << "tsh.count " << ts.tsh.count |
| 10003 | << " (not x86_THREAD_STATE32_COUNT\n"; |
| 10004 | Print_x86_thread_state32_t(ts.uts.ts32); |
| 10005 | } else { |
| 10006 | outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " |
| 10007 | << ts.tsh.count << "\n"; |
| 10008 | } |
| 10009 | } else { |
| 10010 | outs() << " flavor " << flavor << " (unknown)\n"; |
| 10011 | outs() << " count " << count << "\n"; |
| 10012 | outs() << " state (unknown)\n"; |
| 10013 | begin += count * sizeof(uint32_t); |
| 10014 | } |
| 10015 | } |
| 10016 | } else if (cputype == MachO::CPU_TYPE_X86_64) { |
| 10017 | while (begin < end) { |
| 10018 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10019 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
| 10020 | begin += sizeof(uint32_t); |
| 10021 | } else { |
| 10022 | flavor = 0; |
| 10023 | begin = end; |
| 10024 | } |
| 10025 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10026 | sys::swapByteOrder(flavor); |
| 10027 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10028 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
| 10029 | begin += sizeof(uint32_t); |
| 10030 | } else { |
| 10031 | count = 0; |
| 10032 | begin = end; |
| 10033 | } |
| 10034 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10035 | sys::swapByteOrder(count); |
| 10036 | if (flavor == MachO::x86_THREAD_STATE64) { |
| 10037 | outs() << " flavor x86_THREAD_STATE64\n"; |
| 10038 | if (count == MachO::x86_THREAD_STATE64_COUNT) |
| 10039 | outs() << " count x86_THREAD_STATE64_COUNT\n"; |
| 10040 | else |
| 10041 | outs() << " count " << count |
| 10042 | << " (not x86_THREAD_STATE64_COUNT)\n"; |
| 10043 | MachO::x86_thread_state64_t cpu64; |
| 10044 | left = end - begin; |
| 10045 | if (left >= sizeof(MachO::x86_thread_state64_t)) { |
| 10046 | memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t)); |
| 10047 | begin += sizeof(MachO::x86_thread_state64_t); |
| 10048 | } else { |
| 10049 | memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t)); |
| 10050 | memcpy(&cpu64, begin, left); |
| 10051 | begin += left; |
| 10052 | } |
| 10053 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10054 | swapStruct(cpu64); |
| 10055 | Print_x86_thread_state64_t(cpu64); |
| 10056 | } else if (flavor == MachO::x86_THREAD_STATE) { |
| 10057 | outs() << " flavor x86_THREAD_STATE\n"; |
| 10058 | if (count == MachO::x86_THREAD_STATE_COUNT) |
| 10059 | outs() << " count x86_THREAD_STATE_COUNT\n"; |
| 10060 | else |
| 10061 | outs() << " count " << count |
| 10062 | << " (not x86_THREAD_STATE_COUNT)\n"; |
| 10063 | struct MachO::x86_thread_state_t ts; |
| 10064 | left = end - begin; |
| 10065 | if (left >= sizeof(MachO::x86_thread_state_t)) { |
| 10066 | memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); |
| 10067 | begin += sizeof(MachO::x86_thread_state_t); |
| 10068 | } else { |
| 10069 | memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); |
| 10070 | memcpy(&ts, begin, left); |
| 10071 | begin += left; |
| 10072 | } |
| 10073 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10074 | swapStruct(ts); |
| 10075 | if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) { |
| 10076 | outs() << "\t tsh.flavor x86_THREAD_STATE64 "; |
| 10077 | if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT) |
| 10078 | outs() << "tsh.count x86_THREAD_STATE64_COUNT\n"; |
| 10079 | else |
| 10080 | outs() << "tsh.count " << ts.tsh.count |
| 10081 | << " (not x86_THREAD_STATE64_COUNT\n"; |
| 10082 | Print_x86_thread_state64_t(ts.uts.ts64); |
| 10083 | } else { |
| 10084 | outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " |
| 10085 | << ts.tsh.count << "\n"; |
| 10086 | } |
| 10087 | } else if (flavor == MachO::x86_FLOAT_STATE) { |
| 10088 | outs() << " flavor x86_FLOAT_STATE\n"; |
| 10089 | if (count == MachO::x86_FLOAT_STATE_COUNT) |
| 10090 | outs() << " count x86_FLOAT_STATE_COUNT\n"; |
| 10091 | else |
| 10092 | outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n"; |
| 10093 | struct MachO::x86_float_state_t fs; |
| 10094 | left = end - begin; |
| 10095 | if (left >= sizeof(MachO::x86_float_state_t)) { |
| 10096 | memcpy(&fs, begin, sizeof(MachO::x86_float_state_t)); |
| 10097 | begin += sizeof(MachO::x86_float_state_t); |
| 10098 | } else { |
| 10099 | memset(&fs, '\0', sizeof(MachO::x86_float_state_t)); |
| 10100 | memcpy(&fs, begin, left); |
| 10101 | begin += left; |
| 10102 | } |
| 10103 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10104 | swapStruct(fs); |
| 10105 | if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) { |
| 10106 | outs() << "\t fsh.flavor x86_FLOAT_STATE64 "; |
| 10107 | if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT) |
| 10108 | outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n"; |
| 10109 | else |
| 10110 | outs() << "fsh.count " << fs.fsh.count |
| 10111 | << " (not x86_FLOAT_STATE64_COUNT\n"; |
| 10112 | Print_x86_float_state_t(fs.ufs.fs64); |
| 10113 | } else { |
| 10114 | outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count " |
| 10115 | << fs.fsh.count << "\n"; |
| 10116 | } |
| 10117 | } else if (flavor == MachO::x86_EXCEPTION_STATE) { |
| 10118 | outs() << " flavor x86_EXCEPTION_STATE\n"; |
| 10119 | if (count == MachO::x86_EXCEPTION_STATE_COUNT) |
| 10120 | outs() << " count x86_EXCEPTION_STATE_COUNT\n"; |
| 10121 | else |
| 10122 | outs() << " count " << count |
| 10123 | << " (not x86_EXCEPTION_STATE_COUNT)\n"; |
| 10124 | struct MachO::x86_exception_state_t es; |
| 10125 | left = end - begin; |
| 10126 | if (left >= sizeof(MachO::x86_exception_state_t)) { |
| 10127 | memcpy(&es, begin, sizeof(MachO::x86_exception_state_t)); |
| 10128 | begin += sizeof(MachO::x86_exception_state_t); |
| 10129 | } else { |
| 10130 | memset(&es, '\0', sizeof(MachO::x86_exception_state_t)); |
| 10131 | memcpy(&es, begin, left); |
| 10132 | begin += left; |
| 10133 | } |
| 10134 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10135 | swapStruct(es); |
| 10136 | if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) { |
| 10137 | outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n"; |
| 10138 | if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT) |
| 10139 | outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n"; |
| 10140 | else |
| 10141 | outs() << "\t esh.count " << es.esh.count |
| 10142 | << " (not x86_EXCEPTION_STATE64_COUNT\n"; |
| 10143 | Print_x86_exception_state_t(es.ues.es64); |
| 10144 | } else { |
| 10145 | outs() << "\t esh.flavor " << es.esh.flavor << " esh.count " |
| 10146 | << es.esh.count << "\n"; |
| 10147 | } |
| 10148 | } else if (flavor == MachO::x86_EXCEPTION_STATE64) { |
| 10149 | outs() << " flavor x86_EXCEPTION_STATE64\n"; |
| 10150 | if (count == MachO::x86_EXCEPTION_STATE64_COUNT) |
| 10151 | outs() << " count x86_EXCEPTION_STATE64_COUNT\n"; |
| 10152 | else |
| 10153 | outs() << " count " << count |
| 10154 | << " (not x86_EXCEPTION_STATE64_COUNT)\n"; |
| 10155 | struct MachO::x86_exception_state64_t es64; |
| 10156 | left = end - begin; |
| 10157 | if (left >= sizeof(MachO::x86_exception_state64_t)) { |
| 10158 | memcpy(&es64, begin, sizeof(MachO::x86_exception_state64_t)); |
| 10159 | begin += sizeof(MachO::x86_exception_state64_t); |
| 10160 | } else { |
| 10161 | memset(&es64, '\0', sizeof(MachO::x86_exception_state64_t)); |
| 10162 | memcpy(&es64, begin, left); |
| 10163 | begin += left; |
| 10164 | } |
| 10165 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10166 | swapStruct(es64); |
| 10167 | Print_x86_exception_state_t(es64); |
| 10168 | } else { |
| 10169 | outs() << " flavor " << flavor << " (unknown)\n"; |
| 10170 | outs() << " count " << count << "\n"; |
| 10171 | outs() << " state (unknown)\n"; |
| 10172 | begin += count * sizeof(uint32_t); |
| 10173 | } |
| 10174 | } |
| 10175 | } else if (cputype == MachO::CPU_TYPE_ARM) { |
| 10176 | while (begin < end) { |
| 10177 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10178 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
| 10179 | begin += sizeof(uint32_t); |
| 10180 | } else { |
| 10181 | flavor = 0; |
| 10182 | begin = end; |
| 10183 | } |
| 10184 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10185 | sys::swapByteOrder(flavor); |
| 10186 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10187 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
| 10188 | begin += sizeof(uint32_t); |
| 10189 | } else { |
| 10190 | count = 0; |
| 10191 | begin = end; |
| 10192 | } |
| 10193 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10194 | sys::swapByteOrder(count); |
| 10195 | if (flavor == MachO::ARM_THREAD_STATE) { |
| 10196 | outs() << " flavor ARM_THREAD_STATE\n"; |
| 10197 | if (count == MachO::ARM_THREAD_STATE_COUNT) |
| 10198 | outs() << " count ARM_THREAD_STATE_COUNT\n"; |
| 10199 | else |
| 10200 | outs() << " count " << count |
| 10201 | << " (not ARM_THREAD_STATE_COUNT)\n"; |
| 10202 | MachO::arm_thread_state32_t cpu32; |
| 10203 | left = end - begin; |
| 10204 | if (left >= sizeof(MachO::arm_thread_state32_t)) { |
| 10205 | memcpy(&cpu32, begin, sizeof(MachO::arm_thread_state32_t)); |
| 10206 | begin += sizeof(MachO::arm_thread_state32_t); |
| 10207 | } else { |
| 10208 | memset(&cpu32, '\0', sizeof(MachO::arm_thread_state32_t)); |
| 10209 | memcpy(&cpu32, begin, left); |
| 10210 | begin += left; |
| 10211 | } |
| 10212 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10213 | swapStruct(cpu32); |
| 10214 | Print_arm_thread_state32_t(cpu32); |
| 10215 | } else { |
| 10216 | outs() << " flavor " << flavor << " (unknown)\n"; |
| 10217 | outs() << " count " << count << "\n"; |
| 10218 | outs() << " state (unknown)\n"; |
| 10219 | begin += count * sizeof(uint32_t); |
| 10220 | } |
| 10221 | } |
| 10222 | } else if (cputype == MachO::CPU_TYPE_ARM64 || |
| 10223 | cputype == MachO::CPU_TYPE_ARM64_32) { |
| 10224 | while (begin < end) { |
| 10225 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10226 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
| 10227 | begin += sizeof(uint32_t); |
| 10228 | } else { |
| 10229 | flavor = 0; |
| 10230 | begin = end; |
| 10231 | } |
| 10232 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10233 | sys::swapByteOrder(flavor); |
| 10234 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10235 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
| 10236 | begin += sizeof(uint32_t); |
| 10237 | } else { |
| 10238 | count = 0; |
| 10239 | begin = end; |
| 10240 | } |
| 10241 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10242 | sys::swapByteOrder(count); |
| 10243 | if (flavor == MachO::ARM_THREAD_STATE64) { |
| 10244 | outs() << " flavor ARM_THREAD_STATE64\n"; |
| 10245 | if (count == MachO::ARM_THREAD_STATE64_COUNT) |
| 10246 | outs() << " count ARM_THREAD_STATE64_COUNT\n"; |
| 10247 | else |
| 10248 | outs() << " count " << count |
| 10249 | << " (not ARM_THREAD_STATE64_COUNT)\n"; |
| 10250 | MachO::arm_thread_state64_t cpu64; |
| 10251 | left = end - begin; |
| 10252 | if (left >= sizeof(MachO::arm_thread_state64_t)) { |
| 10253 | memcpy(&cpu64, begin, sizeof(MachO::arm_thread_state64_t)); |
| 10254 | begin += sizeof(MachO::arm_thread_state64_t); |
| 10255 | } else { |
| 10256 | memset(&cpu64, '\0', sizeof(MachO::arm_thread_state64_t)); |
| 10257 | memcpy(&cpu64, begin, left); |
| 10258 | begin += left; |
| 10259 | } |
| 10260 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10261 | swapStruct(cpu64); |
| 10262 | Print_arm_thread_state64_t(cpu64); |
| 10263 | } else { |
| 10264 | outs() << " flavor " << flavor << " (unknown)\n"; |
| 10265 | outs() << " count " << count << "\n"; |
| 10266 | outs() << " state (unknown)\n"; |
| 10267 | begin += count * sizeof(uint32_t); |
| 10268 | } |
| 10269 | } |
| 10270 | } else { |
| 10271 | while (begin < end) { |
| 10272 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10273 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
| 10274 | begin += sizeof(uint32_t); |
| 10275 | } else { |
| 10276 | flavor = 0; |
| 10277 | begin = end; |
| 10278 | } |
| 10279 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10280 | sys::swapByteOrder(flavor); |
| 10281 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
| 10282 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
| 10283 | begin += sizeof(uint32_t); |
| 10284 | } else { |
| 10285 | count = 0; |
| 10286 | begin = end; |
| 10287 | } |
| 10288 | if (isLittleEndian != sys::IsLittleEndianHost) |
| 10289 | sys::swapByteOrder(count); |
| 10290 | outs() << " flavor " << flavor << "\n"; |
| 10291 | outs() << " count " << count << "\n"; |
| 10292 | outs() << " state (Unknown cputype/cpusubtype)\n"; |
| 10293 | begin += count * sizeof(uint32_t); |
| 10294 | } |
| 10295 | } |
| 10296 | } |
| 10297 | |
| 10298 | static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) { |
| 10299 | if (dl.cmd == MachO::LC_ID_DYLIB) |
| 10300 | outs() << " cmd LC_ID_DYLIB\n"; |
| 10301 | else if (dl.cmd == MachO::LC_LOAD_DYLIB) |
| 10302 | outs() << " cmd LC_LOAD_DYLIB\n"; |
| 10303 | else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
| 10304 | outs() << " cmd LC_LOAD_WEAK_DYLIB\n"; |
| 10305 | else if (dl.cmd == MachO::LC_REEXPORT_DYLIB) |
| 10306 | outs() << " cmd LC_REEXPORT_DYLIB\n"; |
| 10307 | else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
| 10308 | outs() << " cmd LC_LAZY_LOAD_DYLIB\n"; |
| 10309 | else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
| 10310 | outs() << " cmd LC_LOAD_UPWARD_DYLIB\n"; |
| 10311 | else |
| 10312 | outs() << " cmd " << dl.cmd << " (unknown)\n"; |
| 10313 | outs() << " cmdsize " << dl.cmdsize; |
| 10314 | if (dl.cmdsize < sizeof(struct MachO::dylib_command)) |
| 10315 | outs() << " Incorrect size\n"; |
| 10316 | else |
| 10317 | outs() << "\n"; |
| 10318 | if (dl.dylib.name < dl.cmdsize) { |
| 10319 | const char *P = (const char *)(Ptr) + dl.dylib.name; |
| 10320 | outs() << " name " << P << " (offset " << dl.dylib.name << ")\n"; |
| 10321 | } else { |
| 10322 | outs() << " name ?(bad offset " << dl.dylib.name << ")\n"; |
| 10323 | } |
| 10324 | outs() << " time stamp " << dl.dylib.timestamp << " "; |
| 10325 | time_t t = dl.dylib.timestamp; |
| 10326 | outs() << ctime(&t); |
| 10327 | outs() << " current version "; |
| 10328 | if (dl.dylib.current_version == 0xffffffff) |
| 10329 | outs() << "n/a\n"; |
| 10330 | else |
| 10331 | outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "." |
| 10332 | << ((dl.dylib.current_version >> 8) & 0xff) << "." |
| 10333 | << (dl.dylib.current_version & 0xff) << "\n"; |
| 10334 | outs() << "compatibility version "; |
| 10335 | if (dl.dylib.compatibility_version == 0xffffffff) |
| 10336 | outs() << "n/a\n"; |
| 10337 | else |
| 10338 | outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." |
| 10339 | << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." |
| 10340 | << (dl.dylib.compatibility_version & 0xff) << "\n"; |
| 10341 | } |
| 10342 | |
| 10343 | static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld, |
| 10344 | uint32_t object_size) { |
| 10345 | if (ld.cmd == MachO::LC_CODE_SIGNATURE) |
| 10346 | outs() << " cmd LC_CODE_SIGNATURE\n"; |
| 10347 | else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO) |
| 10348 | outs() << " cmd LC_SEGMENT_SPLIT_INFO\n"; |
| 10349 | else if (ld.cmd == MachO::LC_FUNCTION_STARTS) |
| 10350 | outs() << " cmd LC_FUNCTION_STARTS\n"; |
| 10351 | else if (ld.cmd == MachO::LC_DATA_IN_CODE) |
| 10352 | outs() << " cmd LC_DATA_IN_CODE\n"; |
| 10353 | else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS) |
| 10354 | outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n"; |
| 10355 | else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) |
| 10356 | outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n"; |
| 10357 | else if (ld.cmd == MachO::LC_DYLD_EXPORTS_TRIE) |
| 10358 | outs() << " cmd LC_DYLD_EXPORTS_TRIE\n"; |
| 10359 | else if (ld.cmd == MachO::LC_DYLD_CHAINED_FIXUPS) |
| 10360 | outs() << " cmd LC_DYLD_CHAINED_FIXUPS\n"; |
| 10361 | else |
| 10362 | outs() << " cmd " << ld.cmd << " (?)\n"; |
| 10363 | outs() << " cmdsize " << ld.cmdsize; |
| 10364 | if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command)) |
| 10365 | outs() << " Incorrect size\n"; |
| 10366 | else |
| 10367 | outs() << "\n"; |
| 10368 | outs() << " dataoff " << ld.dataoff; |
| 10369 | if (ld.dataoff > object_size) |
| 10370 | outs() << " (past end of file)\n"; |
| 10371 | else |
| 10372 | outs() << "\n"; |
| 10373 | outs() << " datasize " << ld.datasize; |
| 10374 | uint64_t big_size = ld.dataoff; |
| 10375 | big_size += ld.datasize; |
| 10376 | if (big_size > object_size) |
| 10377 | outs() << " (past end of file)\n"; |
| 10378 | else |
| 10379 | outs() << "\n"; |
| 10380 | } |
| 10381 | |
| 10382 | static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype, |
| 10383 | uint32_t cputype, bool verbose) { |
| 10384 | StringRef Buf = Obj->getData(); |
| 10385 | unsigned Index = 0; |
| 10386 | for (const auto &Command : Obj->load_commands()) { |
| 10387 | outs() << "Load command " << Index++ << "\n"; |
| 10388 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
| 10389 | MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command); |
| 10390 | const char *sg_segname = SLC.segname; |
| 10391 | PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr, |
| 10392 | SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot, |
| 10393 | SLC.initprot, SLC.nsects, SLC.flags, Buf.size(), |
| 10394 | verbose); |
| 10395 | for (unsigned j = 0; j < SLC.nsects; j++) { |
| 10396 | MachO::section S = Obj->getSection(Command, j); |
| 10397 | PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align, |
| 10398 | S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2, |
| 10399 | SLC.cmd, sg_segname, filetype, Buf.size(), verbose); |
| 10400 | } |
| 10401 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
| 10402 | MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command); |
| 10403 | const char *sg_segname = SLC_64.segname; |
| 10404 | PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname, |
| 10405 | SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff, |
| 10406 | SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot, |
| 10407 | SLC_64.nsects, SLC_64.flags, Buf.size(), verbose); |
| 10408 | for (unsigned j = 0; j < SLC_64.nsects; j++) { |
| 10409 | MachO::section_64 S_64 = Obj->getSection64(Command, j); |
| 10410 | PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size, |
| 10411 | S_64.offset, S_64.align, S_64.reloff, S_64.nreloc, |
| 10412 | S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd, |
| 10413 | sg_segname, filetype, Buf.size(), verbose); |
| 10414 | } |
| 10415 | } else if (Command.C.cmd == MachO::LC_SYMTAB) { |
| 10416 | MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); |
| 10417 | PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size()); |
| 10418 | } else if (Command.C.cmd == MachO::LC_DYSYMTAB) { |
| 10419 | MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand(); |
| 10420 | MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); |
| 10421 | PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(), |
| 10422 | Obj->is64Bit()); |
| 10423 | } else if (Command.C.cmd == MachO::LC_DYLD_INFO || |
| 10424 | Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) { |
| 10425 | MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command); |
| 10426 | PrintDyldInfoLoadCommand(DyldInfo, Buf.size()); |
| 10427 | } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER || |
| 10428 | Command.C.cmd == MachO::LC_ID_DYLINKER || |
| 10429 | Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) { |
| 10430 | MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command); |
| 10431 | PrintDyldLoadCommand(Dyld, Command.Ptr); |
| 10432 | } else if (Command.C.cmd == MachO::LC_UUID) { |
| 10433 | MachO::uuid_command Uuid = Obj->getUuidCommand(Command); |
| 10434 | PrintUuidLoadCommand(Uuid); |
| 10435 | } else if (Command.C.cmd == MachO::LC_RPATH) { |
| 10436 | MachO::rpath_command Rpath = Obj->getRpathCommand(Command); |
| 10437 | PrintRpathLoadCommand(Rpath, Command.Ptr); |
| 10438 | } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX || |
| 10439 | Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS || |
| 10440 | Command.C.cmd == MachO::LC_VERSION_MIN_TVOS || |
| 10441 | Command.C.cmd == MachO::LC_VERSION_MIN_WATCHOS) { |
| 10442 | MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command); |
| 10443 | PrintVersionMinLoadCommand(Vd); |
| 10444 | } else if (Command.C.cmd == MachO::LC_NOTE) { |
| 10445 | MachO::note_command Nt = Obj->getNoteLoadCommand(Command); |
| 10446 | PrintNoteLoadCommand(Nt); |
| 10447 | } else if (Command.C.cmd == MachO::LC_BUILD_VERSION) { |
| 10448 | MachO::build_version_command Bv = |
| 10449 | Obj->getBuildVersionLoadCommand(Command); |
| 10450 | PrintBuildVersionLoadCommand(Obj, Bv, verbose); |
| 10451 | } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) { |
| 10452 | MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command); |
| 10453 | PrintSourceVersionCommand(Sd); |
| 10454 | } else if (Command.C.cmd == MachO::LC_MAIN) { |
| 10455 | MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command); |
| 10456 | PrintEntryPointCommand(Ep); |
| 10457 | } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) { |
| 10458 | MachO::encryption_info_command Ei = |
| 10459 | Obj->getEncryptionInfoCommand(Command); |
| 10460 | PrintEncryptionInfoCommand(Ei, Buf.size()); |
| 10461 | } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) { |
| 10462 | MachO::encryption_info_command_64 Ei = |
| 10463 | Obj->getEncryptionInfoCommand64(Command); |
| 10464 | PrintEncryptionInfoCommand64(Ei, Buf.size()); |
| 10465 | } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) { |
| 10466 | MachO::linker_option_command Lo = |
| 10467 | Obj->getLinkerOptionLoadCommand(Command); |
| 10468 | PrintLinkerOptionCommand(Lo, Command.Ptr); |
| 10469 | } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) { |
| 10470 | MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command); |
| 10471 | PrintSubFrameworkCommand(Sf, Command.Ptr); |
| 10472 | } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) { |
| 10473 | MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command); |
| 10474 | PrintSubUmbrellaCommand(Sf, Command.Ptr); |
| 10475 | } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) { |
| 10476 | MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command); |
| 10477 | PrintSubLibraryCommand(Sl, Command.Ptr); |
| 10478 | } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) { |
| 10479 | MachO::sub_client_command Sc = Obj->getSubClientCommand(Command); |
| 10480 | PrintSubClientCommand(Sc, Command.Ptr); |
| 10481 | } else if (Command.C.cmd == MachO::LC_ROUTINES) { |
| 10482 | MachO::routines_command Rc = Obj->getRoutinesCommand(Command); |
| 10483 | PrintRoutinesCommand(Rc); |
| 10484 | } else if (Command.C.cmd == MachO::LC_ROUTINES_64) { |
| 10485 | MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command); |
| 10486 | PrintRoutinesCommand64(Rc); |
| 10487 | } else if (Command.C.cmd == MachO::LC_THREAD || |
| 10488 | Command.C.cmd == MachO::LC_UNIXTHREAD) { |
| 10489 | MachO::thread_command Tc = Obj->getThreadCommand(Command); |
| 10490 | PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype); |
| 10491 | } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB || |
| 10492 | Command.C.cmd == MachO::LC_ID_DYLIB || |
| 10493 | Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || |
| 10494 | Command.C.cmd == MachO::LC_REEXPORT_DYLIB || |
| 10495 | Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || |
| 10496 | Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) { |
| 10497 | MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command); |
| 10498 | PrintDylibCommand(Dl, Command.Ptr); |
| 10499 | } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE || |
| 10500 | Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO || |
| 10501 | Command.C.cmd == MachO::LC_FUNCTION_STARTS || |
| 10502 | Command.C.cmd == MachO::LC_DATA_IN_CODE || |
| 10503 | Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS || |
| 10504 | Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT || |
| 10505 | Command.C.cmd == MachO::LC_DYLD_EXPORTS_TRIE || |
| 10506 | Command.C.cmd == MachO::LC_DYLD_CHAINED_FIXUPS) { |
| 10507 | MachO::linkedit_data_command Ld = |
| 10508 | Obj->getLinkeditDataLoadCommand(Command); |
| 10509 | PrintLinkEditDataCommand(Ld, Buf.size()); |
| 10510 | } else { |
| 10511 | outs() << " cmd ?(" << format("0x%08" PRIx32"x", Command.C.cmd) |
| 10512 | << ")\n"; |
| 10513 | outs() << " cmdsize " << Command.C.cmdsize << "\n"; |
| 10514 | // TODO: get and print the raw bytes of the load command. |
| 10515 | } |
| 10516 | // TODO: print all the other kinds of load commands. |
| 10517 | } |
| 10518 | } |
| 10519 | |
| 10520 | static void PrintMachHeader(const MachOObjectFile *Obj, bool verbose) { |
| 10521 | if (Obj->is64Bit()) { |
| 10522 | MachO::mach_header_64 H_64; |
| 10523 | H_64 = Obj->getHeader64(); |
| 10524 | PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype, |
| 10525 | H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose); |
| 10526 | } else { |
| 10527 | MachO::mach_header H; |
| 10528 | H = Obj->getHeader(); |
| 10529 | PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds, |
| 10530 | H.sizeofcmds, H.flags, verbose); |
| 10531 | } |
| 10532 | } |
| 10533 | |
| 10534 | void objdump::printMachOFileHeader(const object::ObjectFile *Obj) { |
| 10535 | const MachOObjectFile *file = cast<const MachOObjectFile>(Obj); |
| 10536 | PrintMachHeader(file, Verbose); |
| 10537 | } |
| 10538 | |
| 10539 | void objdump::printMachOLoadCommands(const object::ObjectFile *Obj) { |
| 10540 | const MachOObjectFile *file = cast<const MachOObjectFile>(Obj); |
| 10541 | uint32_t filetype = 0; |
| 10542 | uint32_t cputype = 0; |
| 10543 | if (file->is64Bit()) { |
| 10544 | MachO::mach_header_64 H_64; |
| 10545 | H_64 = file->getHeader64(); |
| 10546 | filetype = H_64.filetype; |
| 10547 | cputype = H_64.cputype; |
| 10548 | } else { |
| 10549 | MachO::mach_header H; |
| 10550 | H = file->getHeader(); |
| 10551 | filetype = H.filetype; |
| 10552 | cputype = H.cputype; |
| 10553 | } |
| 10554 | PrintLoadCommands(file, filetype, cputype, Verbose); |
| 10555 | } |
| 10556 | |
| 10557 | //===----------------------------------------------------------------------===// |
| 10558 | // export trie dumping |
| 10559 | //===----------------------------------------------------------------------===// |
| 10560 | |
| 10561 | static void printMachOExportsTrie(const object::MachOObjectFile *Obj) { |
| 10562 | uint64_t BaseSegmentAddress = 0; |
| 10563 | for (const auto &Command : Obj->load_commands()) { |
| 10564 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
| 10565 | MachO::segment_command Seg = Obj->getSegmentLoadCommand(Command); |
| 10566 | if (Seg.fileoff == 0 && Seg.filesize != 0) { |
| 10567 | BaseSegmentAddress = Seg.vmaddr; |
| 10568 | break; |
| 10569 | } |
| 10570 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
| 10571 | MachO::segment_command_64 Seg = Obj->getSegment64LoadCommand(Command); |
| 10572 | if (Seg.fileoff == 0 && Seg.filesize != 0) { |
| 10573 | BaseSegmentAddress = Seg.vmaddr; |
| 10574 | break; |
| 10575 | } |
| 10576 | } |
| 10577 | } |
| 10578 | Error Err = Error::success(); |
| 10579 | for (const object::ExportEntry &Entry : Obj->exports(Err)) { |
| 10580 | uint64_t Flags = Entry.flags(); |
| 10581 | bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT); |
| 10582 | bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION); |
| 10583 | bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == |
| 10584 | MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL); |
| 10585 | bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == |
| 10586 | MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE); |
| 10587 | bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER); |
| 10588 | if (ReExport) |
| 10589 | outs() << "[re-export] "; |
| 10590 | else |
| 10591 | outs() << format("0x%08llX ", |
| 10592 | Entry.address() + BaseSegmentAddress); |
| 10593 | outs() << Entry.name(); |
| 10594 | if (WeakDef || ThreadLocal || Resolver || Abs) { |
| 10595 | ListSeparator LS; |
| 10596 | outs() << " ["; |
| 10597 | if (WeakDef) |
| 10598 | outs() << LS << "weak_def"; |
| 10599 | if (ThreadLocal) |
| 10600 | outs() << LS << "per-thread"; |
| 10601 | if (Abs) |
| 10602 | outs() << LS << "absolute"; |
| 10603 | if (Resolver) |
| 10604 | outs() << LS << format("resolver=0x%08llX", Entry.other()); |
| 10605 | outs() << "]"; |
| 10606 | } |
| 10607 | if (ReExport) { |
| 10608 | StringRef DylibName = "unknown"; |
| 10609 | int Ordinal = Entry.other() - 1; |
| 10610 | Obj->getLibraryShortNameByIndex(Ordinal, DylibName); |
| 10611 | if (Entry.otherName().empty()) |
| 10612 | outs() << " (from " << DylibName << ")"; |
| 10613 | else |
| 10614 | outs() << " (" << Entry.otherName() << " from " << DylibName << ")"; |
| 10615 | } |
| 10616 | outs() << "\n"; |
| 10617 | } |
| 10618 | if (Err) |
| 10619 | reportError(std::move(Err), Obj->getFileName()); |
| 10620 | } |
| 10621 | |
| 10622 | //===----------------------------------------------------------------------===// |
| 10623 | // rebase table dumping |
| 10624 | //===----------------------------------------------------------------------===// |
| 10625 | |
| 10626 | static void printMachORebaseTable(object::MachOObjectFile *Obj) { |
| 10627 | outs() << "segment section address type\n"; |
| 10628 | Error Err = Error::success(); |
| 10629 | for (const object::MachORebaseEntry &Entry : Obj->rebaseTable(Err)) { |
| 10630 | StringRef SegmentName = Entry.segmentName(); |
| 10631 | StringRef SectionName = Entry.sectionName(); |
| 10632 | uint64_t Address = Entry.address(); |
| 10633 | |
| 10634 | // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer |
| 10635 | outs() << format("%-8s %-18s 0x%08" PRIX64"l" "X" " %s\n", |
| 10636 | SegmentName.str().c_str(), SectionName.str().c_str(), |
| 10637 | Address, Entry.typeName().str().c_str()); |
| 10638 | } |
| 10639 | if (Err) |
| 10640 | reportError(std::move(Err), Obj->getFileName()); |
| 10641 | } |
| 10642 | |
| 10643 | static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) { |
| 10644 | StringRef DylibName; |
| 10645 | switch (Ordinal) { |
| 10646 | case MachO::BIND_SPECIAL_DYLIB_SELF: |
| 10647 | return "this-image"; |
| 10648 | case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE: |
| 10649 | return "main-executable"; |
| 10650 | case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP: |
| 10651 | return "flat-namespace"; |
| 10652 | case MachO::BIND_SPECIAL_DYLIB_WEAK_LOOKUP: |
| 10653 | return "weak"; |
| 10654 | default: |
| 10655 | if (Ordinal > 0) { |
| 10656 | std::error_code EC = |
| 10657 | Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName); |
| 10658 | if (EC) |
| 10659 | return "<<bad library ordinal>>"; |
| 10660 | return DylibName; |
| 10661 | } |
| 10662 | } |
| 10663 | return "<<unknown special ordinal>>"; |
| 10664 | } |
| 10665 | |
| 10666 | //===----------------------------------------------------------------------===// |
| 10667 | // bind table dumping |
| 10668 | //===----------------------------------------------------------------------===// |
| 10669 | |
| 10670 | static void printMachOBindTable(object::MachOObjectFile *Obj) { |
| 10671 | // Build table of sections so names can used in final output. |
| 10672 | outs() << "segment section address type " |
| 10673 | "addend dylib symbol\n"; |
| 10674 | Error Err = Error::success(); |
| 10675 | for (const object::MachOBindEntry &Entry : Obj->bindTable(Err)) { |
| 10676 | StringRef SegmentName = Entry.segmentName(); |
| 10677 | StringRef SectionName = Entry.sectionName(); |
| 10678 | uint64_t Address = Entry.address(); |
| 10679 | |
| 10680 | // Table lines look like: |
| 10681 | // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard |
| 10682 | StringRef Attr; |
| 10683 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT) |
| 10684 | Attr = " (weak_import)"; |
| 10685 | outs() << left_justify(SegmentName, 8) << " " |
| 10686 | << left_justify(SectionName, 18) << " " |
| 10687 | << format_hex(Address, 10, true) << " " |
| 10688 | << left_justify(Entry.typeName(), 8) << " " |
| 10689 | << format_decimal(Entry.addend(), 8) << " " |
| 10690 | << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " |
| 10691 | << Entry.symbolName() << Attr << "\n"; |
| 10692 | } |
| 10693 | if (Err) |
| 10694 | reportError(std::move(Err), Obj->getFileName()); |
| 10695 | } |
| 10696 | |
| 10697 | //===----------------------------------------------------------------------===// |
| 10698 | // lazy bind table dumping |
| 10699 | //===----------------------------------------------------------------------===// |
| 10700 | |
| 10701 | static void printMachOLazyBindTable(object::MachOObjectFile *Obj) { |
| 10702 | outs() << "segment section address " |
| 10703 | "dylib symbol\n"; |
| 10704 | Error Err = Error::success(); |
| 10705 | for (const object::MachOBindEntry &Entry : Obj->lazyBindTable(Err)) { |
| 10706 | StringRef SegmentName = Entry.segmentName(); |
| 10707 | StringRef SectionName = Entry.sectionName(); |
| 10708 | uint64_t Address = Entry.address(); |
| 10709 | |
| 10710 | // Table lines look like: |
| 10711 | // __DATA __got 0x00012010 libSystem ___stack_chk_guard |
| 10712 | outs() << left_justify(SegmentName, 8) << " " |
| 10713 | << left_justify(SectionName, 18) << " " |
| 10714 | << format_hex(Address, 10, true) << " " |
| 10715 | << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " |
| 10716 | << Entry.symbolName() << "\n"; |
| 10717 | } |
| 10718 | if (Err) |
| 10719 | reportError(std::move(Err), Obj->getFileName()); |
| 10720 | } |
| 10721 | |
| 10722 | //===----------------------------------------------------------------------===// |
| 10723 | // weak bind table dumping |
| 10724 | //===----------------------------------------------------------------------===// |
| 10725 | |
| 10726 | static void printMachOWeakBindTable(object::MachOObjectFile *Obj) { |
| 10727 | outs() << "segment section address " |
| 10728 | "type addend symbol\n"; |
| 10729 | Error Err = Error::success(); |
| 10730 | for (const object::MachOBindEntry &Entry : Obj->weakBindTable(Err)) { |
| 10731 | // Strong symbols don't have a location to update. |
| 10732 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) { |
| 10733 | outs() << " strong " |
| 10734 | << Entry.symbolName() << "\n"; |
| 10735 | continue; |
| 10736 | } |
| 10737 | StringRef SegmentName = Entry.segmentName(); |
| 10738 | StringRef SectionName = Entry.sectionName(); |
| 10739 | uint64_t Address = Entry.address(); |
| 10740 | |
| 10741 | // Table lines look like: |
| 10742 | // __DATA __data 0x00001000 pointer 0 _foo |
| 10743 | outs() << left_justify(SegmentName, 8) << " " |
| 10744 | << left_justify(SectionName, 18) << " " |
| 10745 | << format_hex(Address, 10, true) << " " |
| 10746 | << left_justify(Entry.typeName(), 8) << " " |
| 10747 | << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName() |
| 10748 | << "\n"; |
| 10749 | } |
| 10750 | if (Err) |
| 10751 | reportError(std::move(Err), Obj->getFileName()); |
| 10752 | } |
| 10753 | |
| 10754 | // get_dyld_bind_info_symbolname() is used for disassembly and passed an |
| 10755 | // address, ReferenceValue, in the Mach-O file and looks in the dyld bind |
| 10756 | // information for that address. If the address is found its binding symbol |
| 10757 | // name is returned. If not nullptr is returned. |
| 10758 | static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, |
| 10759 | struct DisassembleInfo *info) { |
| 10760 | if (info->bindtable == nullptr) { |
| 10761 | info->bindtable = std::make_unique<SymbolAddressMap>(); |
| 10762 | Error Err = Error::success(); |
| 10763 | for (const object::MachOBindEntry &Entry : info->O->bindTable(Err)) { |
| 10764 | uint64_t Address = Entry.address(); |
| 10765 | StringRef name = Entry.symbolName(); |
| 10766 | if (!name.empty()) |
| 10767 | (*info->bindtable)[Address] = name; |
| 10768 | } |
| 10769 | if (Err) |
| 10770 | reportError(std::move(Err), info->O->getFileName()); |
| 10771 | } |
| 10772 | auto name = info->bindtable->lookup(ReferenceValue); |
| 10773 | return !name.empty() ? name.data() : nullptr; |
| 10774 | } |
| 10775 | |
| 10776 | void objdump::printLazyBindTable(ObjectFile *o) { |
| 10777 | outs() << "\nLazy bind table:\n"; |
| 10778 | if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) |
| 10779 | printMachOLazyBindTable(MachO); |
| 10780 | else |
| 10781 | WithColor::error() |
| 10782 | << "This operation is only currently supported " |
| 10783 | "for Mach-O executable files.\n"; |
| 10784 | } |
| 10785 | |
| 10786 | void objdump::printWeakBindTable(ObjectFile *o) { |
| 10787 | outs() << "\nWeak bind table:\n"; |
| 10788 | if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) |
| 10789 | printMachOWeakBindTable(MachO); |
| 10790 | else |
| 10791 | WithColor::error() |
| 10792 | << "This operation is only currently supported " |
| 10793 | "for Mach-O executable files.\n"; |
| 10794 | } |
| 10795 | |
| 10796 | void objdump::printExportsTrie(const ObjectFile *o) { |
| 10797 | outs() << "\nExports trie:\n"; |
| 10798 | if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) |
| 10799 | printMachOExportsTrie(MachO); |
| 10800 | else |
| 10801 | WithColor::error() |
| 10802 | << "This operation is only currently supported " |
| 10803 | "for Mach-O executable files.\n"; |
| 10804 | } |
| 10805 | |
| 10806 | void objdump::printRebaseTable(ObjectFile *o) { |
| 10807 | outs() << "\nRebase table:\n"; |
| 10808 | if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) |
| 10809 | printMachORebaseTable(MachO); |
| 10810 | else |
| 10811 | WithColor::error() |
| 10812 | << "This operation is only currently supported " |
| 10813 | "for Mach-O executable files.\n"; |
| 10814 | } |
| 10815 | |
| 10816 | void objdump::printBindTable(ObjectFile *o) { |
| 10817 | outs() << "\nBind table:\n"; |
| 10818 | if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o)) |
| 10819 | printMachOBindTable(MachO); |
| 10820 | else |
| 10821 | WithColor::error() |
| 10822 | << "This operation is only currently supported " |
| 10823 | "for Mach-O executable files.\n"; |
| 10824 | } |