| 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; |