1 //===-- MachODump.cpp - Object file dumping utility for llvm --------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the MachO-specific dumper for llvm-objdump.
12 //===----------------------------------------------------------------------===//
14 #include "llvm-objdump.h"
15 #include "llvm-c/Disassembler.h"
16 #include "llvm/ADT/STLExtras.h"
17 #include "llvm/ADT/StringExtras.h"
18 #include "llvm/ADT/Triple.h"
19 #include "llvm/Config/config.h"
20 #include "llvm/DebugInfo/DIContext.h"
21 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
22 #include "llvm/MC/MCAsmInfo.h"
23 #include "llvm/MC/MCContext.h"
24 #include "llvm/MC/MCDisassembler.h"
25 #include "llvm/MC/MCInst.h"
26 #include "llvm/MC/MCInstPrinter.h"
27 #include "llvm/MC/MCInstrDesc.h"
28 #include "llvm/MC/MCInstrInfo.h"
29 #include "llvm/MC/MCRegisterInfo.h"
30 #include "llvm/MC/MCSubtargetInfo.h"
31 #include "llvm/Object/MachO.h"
32 #include "llvm/Object/MachOUniversal.h"
33 #include "llvm/Support/Casting.h"
34 #include "llvm/Support/CommandLine.h"
35 #include "llvm/Support/Debug.h"
36 #include "llvm/Support/Endian.h"
37 #include "llvm/Support/Format.h"
38 #include "llvm/Support/FormattedStream.h"
39 #include "llvm/Support/GraphWriter.h"
40 #include "llvm/Support/LEB128.h"
41 #include "llvm/Support/MachO.h"
42 #include "llvm/Support/MemoryBuffer.h"
43 #include "llvm/Support/TargetRegistry.h"
44 #include "llvm/Support/TargetSelect.h"
45 #include "llvm/Support/raw_ostream.h"
48 #include <system_error>
55 using namespace object;
59 cl::desc("Print line information from debug info if available"));
61 static cl::opt<std::string> DSYMFile("dsym",
62 cl::desc("Use .dSYM file for debug info"));
64 static cl::opt<bool> FullLeadingAddr("full-leading-addr",
65 cl::desc("Print full leading address"));
67 static cl::opt<bool> NoLeadingAddr("no-leading-addr",
68 cl::desc("Print no leading address"));
70 cl::opt<bool> llvm::UniversalHeaders("universal-headers",
71 cl::desc("Print Mach-O universal headers "
72 "(requires -macho)"));
75 llvm::ArchiveHeaders("archive-headers",
76 cl::desc("Print archive headers for Mach-O archives "
77 "(requires -macho)"));
80 ArchiveMemberOffsets("archive-member-offsets",
81 cl::desc("Print the offset to each archive member for "
82 "Mach-O archives (requires -macho and "
83 "-archive-headers)"));
86 llvm::IndirectSymbols("indirect-symbols",
87 cl::desc("Print indirect symbol table for Mach-O "
88 "objects (requires -macho)"));
91 llvm::DataInCode("data-in-code",
92 cl::desc("Print the data in code table for Mach-O objects "
93 "(requires -macho)"));
96 llvm::LinkOptHints("link-opt-hints",
97 cl::desc("Print the linker optimization hints for "
98 "Mach-O objects (requires -macho)"));
101 llvm::InfoPlist("info-plist",
102 cl::desc("Print the info plist section as strings for "
103 "Mach-O objects (requires -macho)"));
106 llvm::DylibsUsed("dylibs-used",
107 cl::desc("Print the shared libraries used for linked "
108 "Mach-O files (requires -macho)"));
111 llvm::DylibId("dylib-id",
112 cl::desc("Print the shared library's id for the dylib Mach-O "
113 "file (requires -macho)"));
116 llvm::NonVerbose("non-verbose",
117 cl::desc("Print the info for Mach-O objects in "
118 "non-verbose or numeric form (requires -macho)"));
121 llvm::ObjcMetaData("objc-meta-data",
122 cl::desc("Print the Objective-C runtime meta data for "
123 "Mach-O files (requires -macho)"));
125 cl::opt<std::string> llvm::DisSymName(
127 cl::desc("disassemble just this symbol's instructions (requires -macho"));
129 static cl::opt<bool> NoSymbolicOperands(
130 "no-symbolic-operands",
131 cl::desc("do not symbolic operands when disassembling (requires -macho)"));
133 static cl::list<std::string>
134 ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
137 bool ArchAll = false;
139 static std::string ThumbTripleName;
141 static const Target *GetTarget(const MachOObjectFile *MachOObj,
142 const char **McpuDefault,
143 const Target **ThumbTarget) {
144 // Figure out the target triple.
145 if (TripleName.empty()) {
146 llvm::Triple TT("unknown-unknown-unknown");
147 llvm::Triple ThumbTriple = Triple();
148 TT = MachOObj->getArch(McpuDefault, &ThumbTriple);
149 TripleName = TT.str();
150 ThumbTripleName = ThumbTriple.str();
153 // Get the target specific parser.
155 const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error);
156 if (TheTarget && ThumbTripleName.empty())
159 *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error);
163 errs() << "llvm-objdump: error: unable to get target for '";
165 errs() << TripleName;
167 errs() << ThumbTripleName;
168 errs() << "', see --version and --triple.\n";
172 struct SymbolSorter {
173 bool operator()(const SymbolRef &A, const SymbolRef &B) {
174 uint64_t AAddr = (A.getType() != SymbolRef::ST_Function) ? 0 : A.getValue();
175 uint64_t BAddr = (B.getType() != SymbolRef::ST_Function) ? 0 : B.getValue();
176 return AAddr < BAddr;
180 // Types for the storted data in code table that is built before disassembly
181 // and the predicate function to sort them.
182 typedef std::pair<uint64_t, DiceRef> DiceTableEntry;
183 typedef std::vector<DiceTableEntry> DiceTable;
184 typedef DiceTable::iterator dice_table_iterator;
186 // This is used to search for a data in code table entry for the PC being
187 // disassembled. The j parameter has the PC in j.first. A single data in code
188 // table entry can cover many bytes for each of its Kind's. So if the offset,
189 // aka the i.first value, of the data in code table entry plus its Length
190 // covers the PC being searched for this will return true. If not it will
192 static bool compareDiceTableEntries(const DiceTableEntry &i,
193 const DiceTableEntry &j) {
195 i.second.getLength(Length);
197 return j.first >= i.first && j.first < i.first + Length;
200 static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length,
201 unsigned short Kind) {
202 uint32_t Value, Size = 1;
206 case MachO::DICE_KIND_DATA:
209 dumpBytes(makeArrayRef(bytes, 4), outs());
210 Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
211 outs() << "\t.long " << Value;
213 } else if (Length >= 2) {
215 dumpBytes(makeArrayRef(bytes, 2), outs());
216 Value = bytes[1] << 8 | bytes[0];
217 outs() << "\t.short " << Value;
221 dumpBytes(makeArrayRef(bytes, 2), outs());
223 outs() << "\t.byte " << Value;
226 if (Kind == MachO::DICE_KIND_DATA)
227 outs() << "\t@ KIND_DATA\n";
229 outs() << "\t@ data in code kind = " << Kind << "\n";
231 case MachO::DICE_KIND_JUMP_TABLE8:
233 dumpBytes(makeArrayRef(bytes, 1), outs());
235 outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n";
238 case MachO::DICE_KIND_JUMP_TABLE16:
240 dumpBytes(makeArrayRef(bytes, 2), outs());
241 Value = bytes[1] << 8 | bytes[0];
242 outs() << "\t.short " << format("%5u", Value & 0xffff)
243 << "\t@ KIND_JUMP_TABLE16\n";
246 case MachO::DICE_KIND_JUMP_TABLE32:
247 case MachO::DICE_KIND_ABS_JUMP_TABLE32:
249 dumpBytes(makeArrayRef(bytes, 4), outs());
250 Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];
251 outs() << "\t.long " << Value;
252 if (Kind == MachO::DICE_KIND_JUMP_TABLE32)
253 outs() << "\t@ KIND_JUMP_TABLE32\n";
255 outs() << "\t@ KIND_ABS_JUMP_TABLE32\n";
262 static void getSectionsAndSymbols(MachOObjectFile *MachOObj,
263 std::vector<SectionRef> &Sections,
264 std::vector<SymbolRef> &Symbols,
265 SmallVectorImpl<uint64_t> &FoundFns,
266 uint64_t &BaseSegmentAddress) {
267 for (const SymbolRef &Symbol : MachOObj->symbols()) {
268 ErrorOr<StringRef> SymName = Symbol.getName();
269 if (std::error_code EC = SymName.getError())
270 report_fatal_error(EC.message());
271 if (!SymName->startswith("ltmp"))
272 Symbols.push_back(Symbol);
275 for (const SectionRef &Section : MachOObj->sections()) {
277 Section.getName(SectName);
278 Sections.push_back(Section);
281 bool BaseSegmentAddressSet = false;
282 for (const auto &Command : MachOObj->load_commands()) {
283 if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) {
284 // We found a function starts segment, parse the addresses for later
286 MachO::linkedit_data_command LLC =
287 MachOObj->getLinkeditDataLoadCommand(Command);
289 MachOObj->ReadULEB128s(LLC.dataoff, FoundFns);
290 } else if (Command.C.cmd == MachO::LC_SEGMENT) {
291 MachO::segment_command SLC = MachOObj->getSegmentLoadCommand(Command);
292 StringRef SegName = SLC.segname;
293 if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") {
294 BaseSegmentAddressSet = true;
295 BaseSegmentAddress = SLC.vmaddr;
301 static void PrintIndirectSymbolTable(MachOObjectFile *O, bool verbose,
302 uint32_t n, uint32_t count,
303 uint32_t stride, uint64_t addr) {
304 MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand();
305 uint32_t nindirectsyms = Dysymtab.nindirectsyms;
306 if (n > nindirectsyms)
307 outs() << " (entries start past the end of the indirect symbol "
308 "table) (reserved1 field greater than the table size)";
309 else if (n + count > nindirectsyms)
310 outs() << " (entries extends past the end of the indirect symbol "
313 uint32_t cputype = O->getHeader().cputype;
314 if (cputype & MachO::CPU_ARCH_ABI64)
315 outs() << "address index";
317 outs() << "address index";
322 for (uint32_t j = 0; j < count && n + j < nindirectsyms; j++) {
323 if (cputype & MachO::CPU_ARCH_ABI64)
324 outs() << format("0x%016" PRIx64, addr + j * stride) << " ";
326 outs() << format("0x%08" PRIx32, addr + j * stride) << " ";
327 MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand();
328 uint32_t indirect_symbol = O->getIndirectSymbolTableEntry(Dysymtab, n + j);
329 if (indirect_symbol == MachO::INDIRECT_SYMBOL_LOCAL) {
333 if (indirect_symbol ==
334 (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) {
335 outs() << "LOCAL ABSOLUTE\n";
338 if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) {
339 outs() << "ABSOLUTE\n";
342 outs() << format("%5u ", indirect_symbol);
344 MachO::symtab_command Symtab = O->getSymtabLoadCommand();
345 if (indirect_symbol < Symtab.nsyms) {
346 symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol);
347 SymbolRef Symbol = *Sym;
348 ErrorOr<StringRef> SymName = Symbol.getName();
349 if (std::error_code EC = SymName.getError())
350 report_fatal_error(EC.message());
360 static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) {
361 for (const auto &Load : O->load_commands()) {
362 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
363 MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load);
364 for (unsigned J = 0; J < Seg.nsects; ++J) {
365 MachO::section_64 Sec = O->getSection64(Load, J);
366 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
367 if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
368 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
369 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
370 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
371 section_type == MachO::S_SYMBOL_STUBS) {
373 if (section_type == MachO::S_SYMBOL_STUBS)
374 stride = Sec.reserved2;
378 outs() << "Can't print indirect symbols for (" << Sec.segname << ","
379 << Sec.sectname << ") "
380 << "(size of stubs in reserved2 field is zero)\n";
383 uint32_t count = Sec.size / stride;
384 outs() << "Indirect symbols for (" << Sec.segname << ","
385 << Sec.sectname << ") " << count << " entries";
386 uint32_t n = Sec.reserved1;
387 PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr);
390 } else if (Load.C.cmd == MachO::LC_SEGMENT) {
391 MachO::segment_command Seg = O->getSegmentLoadCommand(Load);
392 for (unsigned J = 0; J < Seg.nsects; ++J) {
393 MachO::section Sec = O->getSection(Load, J);
394 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
395 if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
396 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
397 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
398 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
399 section_type == MachO::S_SYMBOL_STUBS) {
401 if (section_type == MachO::S_SYMBOL_STUBS)
402 stride = Sec.reserved2;
406 outs() << "Can't print indirect symbols for (" << Sec.segname << ","
407 << Sec.sectname << ") "
408 << "(size of stubs in reserved2 field is zero)\n";
411 uint32_t count = Sec.size / stride;
412 outs() << "Indirect symbols for (" << Sec.segname << ","
413 << Sec.sectname << ") " << count << " entries";
414 uint32_t n = Sec.reserved1;
415 PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr);
422 static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) {
423 MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand();
424 uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry);
425 outs() << "Data in code table (" << nentries << " entries)\n";
426 outs() << "offset length kind\n";
427 for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE;
430 DI->getOffset(Offset);
431 outs() << format("0x%08" PRIx32, Offset) << " ";
433 DI->getLength(Length);
434 outs() << format("%6u", Length) << " ";
439 case MachO::DICE_KIND_DATA:
442 case MachO::DICE_KIND_JUMP_TABLE8:
443 outs() << "JUMP_TABLE8";
445 case MachO::DICE_KIND_JUMP_TABLE16:
446 outs() << "JUMP_TABLE16";
448 case MachO::DICE_KIND_JUMP_TABLE32:
449 outs() << "JUMP_TABLE32";
451 case MachO::DICE_KIND_ABS_JUMP_TABLE32:
452 outs() << "ABS_JUMP_TABLE32";
455 outs() << format("0x%04" PRIx32, Kind);
459 outs() << format("0x%04" PRIx32, Kind);
464 static void PrintLinkOptHints(MachOObjectFile *O) {
465 MachO::linkedit_data_command LohLC = O->getLinkOptHintsLoadCommand();
466 const char *loh = O->getData().substr(LohLC.dataoff, 1).data();
467 uint32_t nloh = LohLC.datasize;
468 outs() << "Linker optimiztion hints (" << nloh << " total bytes)\n";
469 for (uint32_t i = 0; i < nloh;) {
471 uint64_t identifier = decodeULEB128((const uint8_t *)(loh + i), &n);
473 outs() << " identifier " << identifier << " ";
476 switch (identifier) {
478 outs() << "AdrpAdrp\n";
481 outs() << "AdrpLdr\n";
484 outs() << "AdrpAddLdr\n";
487 outs() << "AdrpLdrGotLdr\n";
490 outs() << "AdrpAddStr\n";
493 outs() << "AdrpLdrGotStr\n";
496 outs() << "AdrpAdd\n";
499 outs() << "AdrpLdrGot\n";
502 outs() << "Unknown identifier value\n";
505 uint64_t narguments = decodeULEB128((const uint8_t *)(loh + i), &n);
507 outs() << " narguments " << narguments << "\n";
511 for (uint32_t j = 0; j < narguments; j++) {
512 uint64_t value = decodeULEB128((const uint8_t *)(loh + i), &n);
514 outs() << "\tvalue " << format("0x%" PRIx64, value) << "\n";
521 static void PrintDylibs(MachOObjectFile *O, bool JustId) {
523 for (const auto &Load : O->load_commands()) {
524 if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) ||
525 (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB ||
526 Load.C.cmd == MachO::LC_LOAD_DYLIB ||
527 Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
528 Load.C.cmd == MachO::LC_REEXPORT_DYLIB ||
529 Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
530 Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) {
531 MachO::dylib_command dl = O->getDylibIDLoadCommand(Load);
532 if (dl.dylib.name < dl.cmdsize) {
533 const char *p = (const char *)(Load.Ptr) + dl.dylib.name;
538 outs() << " (compatibility version "
539 << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
540 << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
541 << (dl.dylib.compatibility_version & 0xff) << ",";
542 outs() << " current version "
543 << ((dl.dylib.current_version >> 16) & 0xffff) << "."
544 << ((dl.dylib.current_version >> 8) & 0xff) << "."
545 << (dl.dylib.current_version & 0xff) << ")\n";
548 outs() << "\tBad offset (" << dl.dylib.name << ") for name of ";
549 if (Load.C.cmd == MachO::LC_ID_DYLIB)
550 outs() << "LC_ID_DYLIB ";
551 else if (Load.C.cmd == MachO::LC_LOAD_DYLIB)
552 outs() << "LC_LOAD_DYLIB ";
553 else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB)
554 outs() << "LC_LOAD_WEAK_DYLIB ";
555 else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB)
556 outs() << "LC_LAZY_LOAD_DYLIB ";
557 else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB)
558 outs() << "LC_REEXPORT_DYLIB ";
559 else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
560 outs() << "LC_LOAD_UPWARD_DYLIB ";
563 outs() << "command " << Index++ << "\n";
569 typedef DenseMap<uint64_t, StringRef> SymbolAddressMap;
571 static void CreateSymbolAddressMap(MachOObjectFile *O,
572 SymbolAddressMap *AddrMap) {
573 // Create a map of symbol addresses to symbol names.
574 for (const SymbolRef &Symbol : O->symbols()) {
575 SymbolRef::Type ST = Symbol.getType();
576 if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
577 ST == SymbolRef::ST_Other) {
578 uint64_t Address = Symbol.getValue();
579 ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
580 if (std::error_code EC = SymNameOrErr.getError())
581 report_fatal_error(EC.message());
582 StringRef SymName = *SymNameOrErr;
583 if (!SymName.startswith(".objc"))
584 (*AddrMap)[Address] = SymName;
589 // GuessSymbolName is passed the address of what might be a symbol and a
590 // pointer to the SymbolAddressMap. It returns the name of a symbol
591 // with that address or nullptr if no symbol is found with that address.
592 static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) {
593 const char *SymbolName = nullptr;
594 // A DenseMap can't lookup up some values.
595 if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) {
596 StringRef name = AddrMap->lookup(value);
598 SymbolName = name.data();
603 static void DumpCstringChar(const char c) {
607 outs().write_escaped(p);
610 static void DumpCstringSection(MachOObjectFile *O, const char *sect,
611 uint32_t sect_size, uint64_t sect_addr,
612 bool print_addresses) {
613 for (uint32_t i = 0; i < sect_size; i++) {
614 if (print_addresses) {
616 outs() << format("%016" PRIx64, sect_addr + i) << " ";
618 outs() << format("%08" PRIx64, sect_addr + i) << " ";
620 for (; i < sect_size && sect[i] != '\0'; i++)
621 DumpCstringChar(sect[i]);
622 if (i < sect_size && sect[i] == '\0')
627 static void DumpLiteral4(uint32_t l, float f) {
628 outs() << format("0x%08" PRIx32, l);
629 if ((l & 0x7f800000) != 0x7f800000)
630 outs() << format(" (%.16e)\n", f);
633 outs() << " (+Infinity)\n";
634 else if (l == 0xff800000)
635 outs() << " (-Infinity)\n";
636 else if ((l & 0x00400000) == 0x00400000)
637 outs() << " (non-signaling Not-a-Number)\n";
639 outs() << " (signaling Not-a-Number)\n";
643 static void DumpLiteral4Section(MachOObjectFile *O, const char *sect,
644 uint32_t sect_size, uint64_t sect_addr,
645 bool print_addresses) {
646 for (uint32_t i = 0; i < sect_size; i += sizeof(float)) {
647 if (print_addresses) {
649 outs() << format("%016" PRIx64, sect_addr + i) << " ";
651 outs() << format("%08" PRIx64, sect_addr + i) << " ";
654 memcpy(&f, sect + i, sizeof(float));
655 if (O->isLittleEndian() != sys::IsLittleEndianHost)
656 sys::swapByteOrder(f);
658 memcpy(&l, sect + i, sizeof(uint32_t));
659 if (O->isLittleEndian() != sys::IsLittleEndianHost)
660 sys::swapByteOrder(l);
665 static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1,
667 outs() << format("0x%08" PRIx32, l0) << " " << format("0x%08" PRIx32, l1);
669 if (O->isLittleEndian()) {
676 // Hi is the high word, so this is equivalent to if(isfinite(d))
677 if ((Hi & 0x7ff00000) != 0x7ff00000)
678 outs() << format(" (%.16e)\n", d);
680 if (Hi == 0x7ff00000 && Lo == 0)
681 outs() << " (+Infinity)\n";
682 else if (Hi == 0xfff00000 && Lo == 0)
683 outs() << " (-Infinity)\n";
684 else if ((Hi & 0x00080000) == 0x00080000)
685 outs() << " (non-signaling Not-a-Number)\n";
687 outs() << " (signaling Not-a-Number)\n";
691 static void DumpLiteral8Section(MachOObjectFile *O, const char *sect,
692 uint32_t sect_size, uint64_t sect_addr,
693 bool print_addresses) {
694 for (uint32_t i = 0; i < sect_size; i += sizeof(double)) {
695 if (print_addresses) {
697 outs() << format("%016" PRIx64, sect_addr + i) << " ";
699 outs() << format("%08" PRIx64, sect_addr + i) << " ";
702 memcpy(&d, sect + i, sizeof(double));
703 if (O->isLittleEndian() != sys::IsLittleEndianHost)
704 sys::swapByteOrder(d);
706 memcpy(&l0, sect + i, sizeof(uint32_t));
707 memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t));
708 if (O->isLittleEndian() != sys::IsLittleEndianHost) {
709 sys::swapByteOrder(l0);
710 sys::swapByteOrder(l1);
712 DumpLiteral8(O, l0, l1, d);
716 static void DumpLiteral16(uint32_t l0, uint32_t l1, uint32_t l2, uint32_t l3) {
717 outs() << format("0x%08" PRIx32, l0) << " ";
718 outs() << format("0x%08" PRIx32, l1) << " ";
719 outs() << format("0x%08" PRIx32, l2) << " ";
720 outs() << format("0x%08" PRIx32, l3) << "\n";
723 static void DumpLiteral16Section(MachOObjectFile *O, const char *sect,
724 uint32_t sect_size, uint64_t sect_addr,
725 bool print_addresses) {
726 for (uint32_t i = 0; i < sect_size; i += 16) {
727 if (print_addresses) {
729 outs() << format("%016" PRIx64, sect_addr + i) << " ";
731 outs() << format("%08" PRIx64, sect_addr + i) << " ";
733 uint32_t l0, l1, l2, l3;
734 memcpy(&l0, sect + i, sizeof(uint32_t));
735 memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t));
736 memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t));
737 memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t));
738 if (O->isLittleEndian() != sys::IsLittleEndianHost) {
739 sys::swapByteOrder(l0);
740 sys::swapByteOrder(l1);
741 sys::swapByteOrder(l2);
742 sys::swapByteOrder(l3);
744 DumpLiteral16(l0, l1, l2, l3);
748 static void DumpLiteralPointerSection(MachOObjectFile *O,
749 const SectionRef &Section,
750 const char *sect, uint32_t sect_size,
752 bool print_addresses) {
753 // Collect the literal sections in this Mach-O file.
754 std::vector<SectionRef> LiteralSections;
755 for (const SectionRef &Section : O->sections()) {
756 DataRefImpl Ref = Section.getRawDataRefImpl();
757 uint32_t section_type;
759 const MachO::section_64 Sec = O->getSection64(Ref);
760 section_type = Sec.flags & MachO::SECTION_TYPE;
762 const MachO::section Sec = O->getSection(Ref);
763 section_type = Sec.flags & MachO::SECTION_TYPE;
765 if (section_type == MachO::S_CSTRING_LITERALS ||
766 section_type == MachO::S_4BYTE_LITERALS ||
767 section_type == MachO::S_8BYTE_LITERALS ||
768 section_type == MachO::S_16BYTE_LITERALS)
769 LiteralSections.push_back(Section);
772 // Set the size of the literal pointer.
773 uint32_t lp_size = O->is64Bit() ? 8 : 4;
775 // Collect the external relocation symbols for the literal pointers.
776 std::vector<std::pair<uint64_t, SymbolRef>> Relocs;
777 for (const RelocationRef &Reloc : Section.relocations()) {
779 MachO::any_relocation_info RE;
780 bool isExtern = false;
781 Rel = Reloc.getRawDataRefImpl();
782 RE = O->getRelocation(Rel);
783 isExtern = O->getPlainRelocationExternal(RE);
785 uint64_t RelocOffset = Reloc.getOffset();
786 symbol_iterator RelocSym = Reloc.getSymbol();
787 Relocs.push_back(std::make_pair(RelocOffset, *RelocSym));
790 array_pod_sort(Relocs.begin(), Relocs.end());
792 // Dump each literal pointer.
793 for (uint32_t i = 0; i < sect_size; i += lp_size) {
794 if (print_addresses) {
796 outs() << format("%016" PRIx64, sect_addr + i) << " ";
798 outs() << format("%08" PRIx64, sect_addr + i) << " ";
802 memcpy(&lp, sect + i, sizeof(uint64_t));
803 if (O->isLittleEndian() != sys::IsLittleEndianHost)
804 sys::swapByteOrder(lp);
807 memcpy(&li, sect + i, sizeof(uint32_t));
808 if (O->isLittleEndian() != sys::IsLittleEndianHost)
809 sys::swapByteOrder(li);
813 // First look for an external relocation entry for this literal pointer.
814 auto Reloc = std::find_if(
815 Relocs.begin(), Relocs.end(),
816 [&](const std::pair<uint64_t, SymbolRef> &P) { return P.first == i; });
817 if (Reloc != Relocs.end()) {
818 symbol_iterator RelocSym = Reloc->second;
819 ErrorOr<StringRef> SymName = RelocSym->getName();
820 if (std::error_code EC = SymName.getError())
821 report_fatal_error(EC.message());
822 outs() << "external relocation entry for symbol:" << *SymName << "\n";
826 // For local references see what the section the literal pointer points to.
827 auto Sect = std::find_if(LiteralSections.begin(), LiteralSections.end(),
828 [&](const SectionRef &R) {
829 return lp >= R.getAddress() &&
830 lp < R.getAddress() + R.getSize();
832 if (Sect == LiteralSections.end()) {
833 outs() << format("0x%" PRIx64, lp) << " (not in a literal section)\n";
837 uint64_t SectAddress = Sect->getAddress();
838 uint64_t SectSize = Sect->getSize();
841 Sect->getName(SectName);
842 DataRefImpl Ref = Sect->getRawDataRefImpl();
843 StringRef SegmentName = O->getSectionFinalSegmentName(Ref);
844 outs() << SegmentName << ":" << SectName << ":";
846 uint32_t section_type;
848 const MachO::section_64 Sec = O->getSection64(Ref);
849 section_type = Sec.flags & MachO::SECTION_TYPE;
851 const MachO::section Sec = O->getSection(Ref);
852 section_type = Sec.flags & MachO::SECTION_TYPE;
856 Sect->getContents(BytesStr);
857 const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
859 switch (section_type) {
860 case MachO::S_CSTRING_LITERALS:
861 for (uint64_t i = lp - SectAddress; i < SectSize && Contents[i] != '\0';
863 DumpCstringChar(Contents[i]);
867 case MachO::S_4BYTE_LITERALS:
869 memcpy(&f, Contents + (lp - SectAddress), sizeof(float));
871 memcpy(&l, Contents + (lp - SectAddress), sizeof(uint32_t));
872 if (O->isLittleEndian() != sys::IsLittleEndianHost) {
873 sys::swapByteOrder(f);
874 sys::swapByteOrder(l);
878 case MachO::S_8BYTE_LITERALS: {
880 memcpy(&d, Contents + (lp - SectAddress), sizeof(double));
882 memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t));
883 memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t),
885 if (O->isLittleEndian() != sys::IsLittleEndianHost) {
886 sys::swapByteOrder(f);
887 sys::swapByteOrder(l0);
888 sys::swapByteOrder(l1);
890 DumpLiteral8(O, l0, l1, d);
893 case MachO::S_16BYTE_LITERALS: {
894 uint32_t l0, l1, l2, l3;
895 memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t));
896 memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t),
898 memcpy(&l2, Contents + (lp - SectAddress) + 2 * sizeof(uint32_t),
900 memcpy(&l3, Contents + (lp - SectAddress) + 3 * sizeof(uint32_t),
902 if (O->isLittleEndian() != sys::IsLittleEndianHost) {
903 sys::swapByteOrder(l0);
904 sys::swapByteOrder(l1);
905 sys::swapByteOrder(l2);
906 sys::swapByteOrder(l3);
908 DumpLiteral16(l0, l1, l2, l3);
915 static void DumpInitTermPointerSection(MachOObjectFile *O, const char *sect,
916 uint32_t sect_size, uint64_t sect_addr,
917 SymbolAddressMap *AddrMap,
921 stride = sizeof(uint64_t);
923 stride = sizeof(uint32_t);
924 for (uint32_t i = 0; i < sect_size; i += stride) {
925 const char *SymbolName = nullptr;
927 outs() << format("0x%016" PRIx64, sect_addr + i * stride) << " ";
928 uint64_t pointer_value;
929 memcpy(&pointer_value, sect + i, stride);
930 if (O->isLittleEndian() != sys::IsLittleEndianHost)
931 sys::swapByteOrder(pointer_value);
932 outs() << format("0x%016" PRIx64, pointer_value);
934 SymbolName = GuessSymbolName(pointer_value, AddrMap);
936 outs() << format("0x%08" PRIx64, sect_addr + i * stride) << " ";
937 uint32_t pointer_value;
938 memcpy(&pointer_value, sect + i, stride);
939 if (O->isLittleEndian() != sys::IsLittleEndianHost)
940 sys::swapByteOrder(pointer_value);
941 outs() << format("0x%08" PRIx32, pointer_value);
943 SymbolName = GuessSymbolName(pointer_value, AddrMap);
946 outs() << " " << SymbolName;
951 static void DumpRawSectionContents(MachOObjectFile *O, const char *sect,
952 uint32_t size, uint64_t addr) {
953 uint32_t cputype = O->getHeader().cputype;
954 if (cputype == MachO::CPU_TYPE_I386 || cputype == MachO::CPU_TYPE_X86_64) {
956 for (uint32_t i = 0; i < size; i += j, addr += j) {
958 outs() << format("%016" PRIx64, addr) << "\t";
960 outs() << format("%08" PRIx64, addr) << "\t";
961 for (j = 0; j < 16 && i + j < size; j++) {
962 uint8_t byte_word = *(sect + i + j);
963 outs() << format("%02" PRIx32, (uint32_t)byte_word) << " ";
969 for (uint32_t i = 0; i < size; i += j, addr += j) {
971 outs() << format("%016" PRIx64, addr) << "\t";
973 outs() << format("%08" PRIx64, sect) << "\t";
974 for (j = 0; j < 4 * sizeof(int32_t) && i + j < size;
975 j += sizeof(int32_t)) {
976 if (i + j + sizeof(int32_t) < size) {
978 memcpy(&long_word, sect + i + j, sizeof(int32_t));
979 if (O->isLittleEndian() != sys::IsLittleEndianHost)
980 sys::swapByteOrder(long_word);
981 outs() << format("%08" PRIx32, long_word) << " ";
983 for (uint32_t k = 0; i + j + k < size; k++) {
984 uint8_t byte_word = *(sect + i + j);
985 outs() << format("%02" PRIx32, (uint32_t)byte_word) << " ";
994 static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF,
995 StringRef DisSegName, StringRef DisSectName);
996 static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
997 uint32_t size, uint32_t addr);
999 static void DumpSectionContents(StringRef Filename, MachOObjectFile *O,
1001 SymbolAddressMap AddrMap;
1003 CreateSymbolAddressMap(O, &AddrMap);
1005 for (unsigned i = 0; i < FilterSections.size(); ++i) {
1006 StringRef DumpSection = FilterSections[i];
1007 std::pair<StringRef, StringRef> DumpSegSectName;
1008 DumpSegSectName = DumpSection.split(',');
1009 StringRef DumpSegName, DumpSectName;
1010 if (DumpSegSectName.second.size()) {
1011 DumpSegName = DumpSegSectName.first;
1012 DumpSectName = DumpSegSectName.second;
1015 DumpSectName = DumpSegSectName.first;
1017 for (const SectionRef &Section : O->sections()) {
1019 Section.getName(SectName);
1020 DataRefImpl Ref = Section.getRawDataRefImpl();
1021 StringRef SegName = O->getSectionFinalSegmentName(Ref);
1022 if ((DumpSegName.empty() || SegName == DumpSegName) &&
1023 (SectName == DumpSectName)) {
1025 uint32_t section_flags;
1027 const MachO::section_64 Sec = O->getSection64(Ref);
1028 section_flags = Sec.flags;
1031 const MachO::section Sec = O->getSection(Ref);
1032 section_flags = Sec.flags;
1034 uint32_t section_type = section_flags & MachO::SECTION_TYPE;
1037 Section.getContents(BytesStr);
1038 const char *sect = reinterpret_cast<const char *>(BytesStr.data());
1039 uint32_t sect_size = BytesStr.size();
1040 uint64_t sect_addr = Section.getAddress();
1042 outs() << "Contents of (" << SegName << "," << SectName
1046 if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) ||
1047 (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) {
1048 DisassembleMachO(Filename, O, SegName, SectName);
1051 if (SegName == "__TEXT" && SectName == "__info_plist") {
1055 if (SegName == "__OBJC" && SectName == "__protocol") {
1056 DumpProtocolSection(O, sect, sect_size, sect_addr);
1059 switch (section_type) {
1060 case MachO::S_REGULAR:
1061 DumpRawSectionContents(O, sect, sect_size, sect_addr);
1063 case MachO::S_ZEROFILL:
1064 outs() << "zerofill section and has no contents in the file\n";
1066 case MachO::S_CSTRING_LITERALS:
1067 DumpCstringSection(O, sect, sect_size, sect_addr, !NoLeadingAddr);
1069 case MachO::S_4BYTE_LITERALS:
1070 DumpLiteral4Section(O, sect, sect_size, sect_addr, !NoLeadingAddr);
1072 case MachO::S_8BYTE_LITERALS:
1073 DumpLiteral8Section(O, sect, sect_size, sect_addr, !NoLeadingAddr);
1075 case MachO::S_16BYTE_LITERALS:
1076 DumpLiteral16Section(O, sect, sect_size, sect_addr, !NoLeadingAddr);
1078 case MachO::S_LITERAL_POINTERS:
1079 DumpLiteralPointerSection(O, Section, sect, sect_size, sect_addr,
1082 case MachO::S_MOD_INIT_FUNC_POINTERS:
1083 case MachO::S_MOD_TERM_FUNC_POINTERS:
1084 DumpInitTermPointerSection(O, sect, sect_size, sect_addr, &AddrMap,
1088 outs() << "Unknown section type ("
1089 << format("0x%08" PRIx32, section_type) << ")\n";
1090 DumpRawSectionContents(O, sect, sect_size, sect_addr);
1094 if (section_type == MachO::S_ZEROFILL)
1095 outs() << "zerofill section and has no contents in the file\n";
1097 DumpRawSectionContents(O, sect, sect_size, sect_addr);
1104 static void DumpInfoPlistSectionContents(StringRef Filename,
1105 MachOObjectFile *O) {
1106 for (const SectionRef &Section : O->sections()) {
1108 Section.getName(SectName);
1109 DataRefImpl Ref = Section.getRawDataRefImpl();
1110 StringRef SegName = O->getSectionFinalSegmentName(Ref);
1111 if (SegName == "__TEXT" && SectName == "__info_plist") {
1112 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
1114 Section.getContents(BytesStr);
1115 const char *sect = reinterpret_cast<const char *>(BytesStr.data());
1122 // checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file
1123 // and if it is and there is a list of architecture flags is specified then
1124 // check to make sure this Mach-O file is one of those architectures or all
1125 // architectures were specified. If not then an error is generated and this
1126 // routine returns false. Else it returns true.
1127 static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) {
1128 if (isa<MachOObjectFile>(O) && !ArchAll && ArchFlags.size() != 0) {
1129 MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
1130 bool ArchFound = false;
1131 MachO::mach_header H;
1132 MachO::mach_header_64 H_64;
1134 if (MachO->is64Bit()) {
1135 H_64 = MachO->MachOObjectFile::getHeader64();
1136 T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
1138 H = MachO->MachOObjectFile::getHeader();
1139 T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
1142 for (i = 0; i < ArchFlags.size(); ++i) {
1143 if (ArchFlags[i] == T.getArchName())
1148 errs() << "llvm-objdump: file: " + Filename + " does not contain "
1149 << "architecture: " + ArchFlags[i] + "\n";
1156 static void printObjcMetaData(MachOObjectFile *O, bool verbose);
1158 // ProcessMachO() is passed a single opened Mach-O file, which may be an
1159 // archive member and or in a slice of a universal file. It prints the
1160 // the file name and header info and then processes it according to the
1161 // command line options.
1162 static void ProcessMachO(StringRef Filename, MachOObjectFile *MachOOF,
1163 StringRef ArchiveMemberName = StringRef(),
1164 StringRef ArchitectureName = StringRef()) {
1165 // If we are doing some processing here on the Mach-O file print the header
1166 // info. And don't print it otherwise like in the case of printing the
1167 // UniversalHeaders or ArchiveHeaders.
1168 if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind ||
1169 LazyBind || WeakBind || IndirectSymbols || DataInCode || LinkOptHints ||
1170 DylibsUsed || DylibId || ObjcMetaData || (FilterSections.size() != 0)) {
1172 if (!ArchiveMemberName.empty())
1173 outs() << '(' << ArchiveMemberName << ')';
1174 if (!ArchitectureName.empty())
1175 outs() << " (architecture " << ArchitectureName << ")";
1180 DisassembleMachO(Filename, MachOOF, "__TEXT", "__text");
1181 if (IndirectSymbols)
1182 PrintIndirectSymbols(MachOOF, !NonVerbose);
1184 PrintDataInCodeTable(MachOOF, !NonVerbose);
1186 PrintLinkOptHints(MachOOF);
1188 PrintRelocations(MachOOF);
1190 PrintSectionHeaders(MachOOF);
1191 if (SectionContents)
1192 PrintSectionContents(MachOOF);
1193 if (FilterSections.size() != 0)
1194 DumpSectionContents(Filename, MachOOF, !NonVerbose);
1196 DumpInfoPlistSectionContents(Filename, MachOOF);
1198 PrintDylibs(MachOOF, false);
1200 PrintDylibs(MachOOF, true);
1202 PrintSymbolTable(MachOOF);
1204 printMachOUnwindInfo(MachOOF);
1206 printMachOFileHeader(MachOOF);
1208 printObjcMetaData(MachOOF, !NonVerbose);
1210 printExportsTrie(MachOOF);
1212 printRebaseTable(MachOOF);
1214 printBindTable(MachOOF);
1216 printLazyBindTable(MachOOF);
1218 printWeakBindTable(MachOOF);
1221 // printUnknownCPUType() helps print_fat_headers for unknown CPU's.
1222 static void printUnknownCPUType(uint32_t cputype, uint32_t cpusubtype) {
1223 outs() << " cputype (" << cputype << ")\n";
1224 outs() << " cpusubtype (" << cpusubtype << ")\n";
1227 // printCPUType() helps print_fat_headers by printing the cputype and
1228 // pusubtype (symbolically for the one's it knows about).
1229 static void printCPUType(uint32_t cputype, uint32_t cpusubtype) {
1231 case MachO::CPU_TYPE_I386:
1232 switch (cpusubtype) {
1233 case MachO::CPU_SUBTYPE_I386_ALL:
1234 outs() << " cputype CPU_TYPE_I386\n";
1235 outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n";
1238 printUnknownCPUType(cputype, cpusubtype);
1242 case MachO::CPU_TYPE_X86_64:
1243 switch (cpusubtype) {
1244 case MachO::CPU_SUBTYPE_X86_64_ALL:
1245 outs() << " cputype CPU_TYPE_X86_64\n";
1246 outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n";
1248 case MachO::CPU_SUBTYPE_X86_64_H:
1249 outs() << " cputype CPU_TYPE_X86_64\n";
1250 outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n";
1253 printUnknownCPUType(cputype, cpusubtype);
1257 case MachO::CPU_TYPE_ARM:
1258 switch (cpusubtype) {
1259 case MachO::CPU_SUBTYPE_ARM_ALL:
1260 outs() << " cputype CPU_TYPE_ARM\n";
1261 outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n";
1263 case MachO::CPU_SUBTYPE_ARM_V4T:
1264 outs() << " cputype CPU_TYPE_ARM\n";
1265 outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n";
1267 case MachO::CPU_SUBTYPE_ARM_V5TEJ:
1268 outs() << " cputype CPU_TYPE_ARM\n";
1269 outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n";
1271 case MachO::CPU_SUBTYPE_ARM_XSCALE:
1272 outs() << " cputype CPU_TYPE_ARM\n";
1273 outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n";
1275 case MachO::CPU_SUBTYPE_ARM_V6:
1276 outs() << " cputype CPU_TYPE_ARM\n";
1277 outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n";
1279 case MachO::CPU_SUBTYPE_ARM_V6M:
1280 outs() << " cputype CPU_TYPE_ARM\n";
1281 outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n";
1283 case MachO::CPU_SUBTYPE_ARM_V7:
1284 outs() << " cputype CPU_TYPE_ARM\n";
1285 outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n";
1287 case MachO::CPU_SUBTYPE_ARM_V7EM:
1288 outs() << " cputype CPU_TYPE_ARM\n";
1289 outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n";
1291 case MachO::CPU_SUBTYPE_ARM_V7K:
1292 outs() << " cputype CPU_TYPE_ARM\n";
1293 outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n";
1295 case MachO::CPU_SUBTYPE_ARM_V7M:
1296 outs() << " cputype CPU_TYPE_ARM\n";
1297 outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n";
1299 case MachO::CPU_SUBTYPE_ARM_V7S:
1300 outs() << " cputype CPU_TYPE_ARM\n";
1301 outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n";
1304 printUnknownCPUType(cputype, cpusubtype);
1308 case MachO::CPU_TYPE_ARM64:
1309 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
1310 case MachO::CPU_SUBTYPE_ARM64_ALL:
1311 outs() << " cputype CPU_TYPE_ARM64\n";
1312 outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n";
1315 printUnknownCPUType(cputype, cpusubtype);
1320 printUnknownCPUType(cputype, cpusubtype);
1325 static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB,
1327 outs() << "Fat headers\n";
1329 outs() << "fat_magic FAT_MAGIC\n";
1331 outs() << "fat_magic " << format("0x%" PRIx32, MachO::FAT_MAGIC) << "\n";
1333 uint32_t nfat_arch = UB->getNumberOfObjects();
1334 StringRef Buf = UB->getData();
1335 uint64_t size = Buf.size();
1336 uint64_t big_size = sizeof(struct MachO::fat_header) +
1337 nfat_arch * sizeof(struct MachO::fat_arch);
1338 outs() << "nfat_arch " << UB->getNumberOfObjects();
1340 outs() << " (malformed, contains zero architecture types)\n";
1341 else if (big_size > size)
1342 outs() << " (malformed, architectures past end of file)\n";
1346 for (uint32_t i = 0; i < nfat_arch; ++i) {
1347 MachOUniversalBinary::ObjectForArch OFA(UB, i);
1348 uint32_t cputype = OFA.getCPUType();
1349 uint32_t cpusubtype = OFA.getCPUSubType();
1350 outs() << "architecture ";
1351 for (uint32_t j = 0; i != 0 && j <= i - 1; j++) {
1352 MachOUniversalBinary::ObjectForArch other_OFA(UB, j);
1353 uint32_t other_cputype = other_OFA.getCPUType();
1354 uint32_t other_cpusubtype = other_OFA.getCPUSubType();
1355 if (cputype != 0 && cpusubtype != 0 && cputype == other_cputype &&
1356 (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) ==
1357 (other_cpusubtype & ~MachO::CPU_SUBTYPE_MASK)) {
1358 outs() << "(illegal duplicate architecture) ";
1363 outs() << OFA.getArchTypeName() << "\n";
1364 printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
1366 outs() << i << "\n";
1367 outs() << " cputype " << cputype << "\n";
1368 outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK)
1372 (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64)
1373 outs() << " capabilities CPU_SUBTYPE_LIB64\n";
1375 outs() << " capabilities "
1376 << format("0x%" PRIx32,
1377 (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24) << "\n";
1378 outs() << " offset " << OFA.getOffset();
1379 if (OFA.getOffset() > size)
1380 outs() << " (past end of file)";
1381 if (OFA.getOffset() % (1 << OFA.getAlign()) != 0)
1382 outs() << " (not aligned on it's alignment (2^" << OFA.getAlign() << ")";
1384 outs() << " size " << OFA.getSize();
1385 big_size = OFA.getOffset() + OFA.getSize();
1386 if (big_size > size)
1387 outs() << " (past end of file)";
1389 outs() << " align 2^" << OFA.getAlign() << " (" << (1 << OFA.getAlign())
1394 static void printArchiveChild(Archive::Child &C, bool verbose,
1395 bool print_offset) {
1397 outs() << C.getChildOffset() << "\t";
1398 sys::fs::perms Mode = C.getAccessMode();
1400 // FIXME: this first dash, "-", is for (Mode & S_IFMT) == S_IFREG.
1401 // But there is nothing in sys::fs::perms for S_IFMT or S_IFREG.
1403 outs() << ((Mode & sys::fs::owner_read) ? "r" : "-");
1404 outs() << ((Mode & sys::fs::owner_write) ? "w" : "-");
1405 outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-");
1406 outs() << ((Mode & sys::fs::group_read) ? "r" : "-");
1407 outs() << ((Mode & sys::fs::group_write) ? "w" : "-");
1408 outs() << ((Mode & sys::fs::group_exe) ? "x" : "-");
1409 outs() << ((Mode & sys::fs::others_read) ? "r" : "-");
1410 outs() << ((Mode & sys::fs::others_write) ? "w" : "-");
1411 outs() << ((Mode & sys::fs::others_exe) ? "x" : "-");
1413 outs() << format("0%o ", Mode);
1416 unsigned UID = C.getUID();
1417 outs() << format("%3d/", UID);
1418 unsigned GID = C.getGID();
1419 outs() << format("%-3d ", GID);
1420 uint64_t Size = C.getRawSize();
1421 outs() << format("%5" PRId64, Size) << " ";
1423 StringRef RawLastModified = C.getRawLastModified();
1426 if (RawLastModified.getAsInteger(10, Seconds))
1427 outs() << "(date: \"%s\" contains non-decimal chars) " << RawLastModified;
1429 // Since cime(3) returns a 26 character string of the form:
1430 // "Sun Sep 16 01:03:52 1973\n\0"
1431 // just print 24 characters.
1433 outs() << format("%.24s ", ctime(&t));
1436 outs() << RawLastModified << " ";
1440 ErrorOr<StringRef> NameOrErr = C.getName();
1441 if (NameOrErr.getError()) {
1442 StringRef RawName = C.getRawName();
1443 outs() << RawName << "\n";
1445 StringRef Name = NameOrErr.get();
1446 outs() << Name << "\n";
1449 StringRef RawName = C.getRawName();
1450 outs() << RawName << "\n";
1454 static void printArchiveHeaders(Archive *A, bool verbose, bool print_offset) {
1455 for (Archive::child_iterator I = A->child_begin(false), E = A->child_end();
1457 Archive::Child C = *I;
1458 printArchiveChild(C, verbose, print_offset);
1462 // ParseInputMachO() parses the named Mach-O file in Filename and handles the
1463 // -arch flags selecting just those slices as specified by them and also parses
1464 // archive files. Then for each individual Mach-O file ProcessMachO() is
1465 // called to process the file based on the command line options.
1466 void llvm::ParseInputMachO(StringRef Filename) {
1467 // Check for -arch all and verifiy the -arch flags are valid.
1468 for (unsigned i = 0; i < ArchFlags.size(); ++i) {
1469 if (ArchFlags[i] == "all") {
1472 if (!MachOObjectFile::isValidArch(ArchFlags[i])) {
1473 errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] +
1474 "'for the -arch option\n";
1480 // Attempt to open the binary.
1481 ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
1482 if (std::error_code EC = BinaryOrErr.getError()) {
1483 errs() << "llvm-objdump: '" << Filename << "': " << EC.message() << ".\n";
1486 Binary &Bin = *BinaryOrErr.get().getBinary();
1488 if (Archive *A = dyn_cast<Archive>(&Bin)) {
1489 outs() << "Archive : " << Filename << "\n";
1491 printArchiveHeaders(A, !NonVerbose, ArchiveMemberOffsets);
1492 for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
1494 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = I->getAsBinary();
1495 if (ChildOrErr.getError())
1497 if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
1498 if (!checkMachOAndArchFlags(O, Filename))
1500 ProcessMachO(Filename, O, O->getFileName());
1505 if (UniversalHeaders) {
1506 if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin))
1507 printMachOUniversalHeaders(UB, !NonVerbose);
1509 if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
1510 // If we have a list of architecture flags specified dump only those.
1511 if (!ArchAll && ArchFlags.size() != 0) {
1512 // Look for a slice in the universal binary that matches each ArchFlag.
1514 for (unsigned i = 0; i < ArchFlags.size(); ++i) {
1516 for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
1517 E = UB->end_objects();
1519 if (ArchFlags[i] == I->getArchTypeName()) {
1521 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
1522 I->getAsObjectFile();
1523 std::string ArchitectureName = "";
1524 if (ArchFlags.size() > 1)
1525 ArchitectureName = I->getArchTypeName();
1527 ObjectFile &O = *ObjOrErr.get();
1528 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
1529 ProcessMachO(Filename, MachOOF, "", ArchitectureName);
1530 } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
1531 I->getAsArchive()) {
1532 std::unique_ptr<Archive> &A = *AOrErr;
1533 outs() << "Archive : " << Filename;
1534 if (!ArchitectureName.empty())
1535 outs() << " (architecture " << ArchitectureName << ")";
1538 printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
1539 for (Archive::child_iterator AI = A->child_begin(),
1540 AE = A->child_end();
1542 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
1543 if (ChildOrErr.getError())
1545 if (MachOObjectFile *O =
1546 dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
1547 ProcessMachO(Filename, O, O->getFileName(), ArchitectureName);
1553 errs() << "llvm-objdump: file: " + Filename + " does not contain "
1554 << "architecture: " + ArchFlags[i] + "\n";
1560 // No architecture flags were specified so if this contains a slice that
1561 // matches the host architecture dump only that.
1563 for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
1564 E = UB->end_objects();
1566 if (MachOObjectFile::getHostArch().getArchName() ==
1567 I->getArchTypeName()) {
1568 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
1569 std::string ArchiveName;
1570 ArchiveName.clear();
1572 ObjectFile &O = *ObjOrErr.get();
1573 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
1574 ProcessMachO(Filename, MachOOF);
1575 } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
1576 I->getAsArchive()) {
1577 std::unique_ptr<Archive> &A = *AOrErr;
1578 outs() << "Archive : " << Filename << "\n";
1580 printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
1581 for (Archive::child_iterator AI = A->child_begin(),
1582 AE = A->child_end();
1584 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
1585 if (ChildOrErr.getError())
1587 if (MachOObjectFile *O =
1588 dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
1589 ProcessMachO(Filename, O, O->getFileName());
1596 // Either all architectures have been specified or none have been specified
1597 // and this does not contain the host architecture so dump all the slices.
1598 bool moreThanOneArch = UB->getNumberOfObjects() > 1;
1599 for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
1600 E = UB->end_objects();
1602 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
1603 std::string ArchitectureName = "";
1604 if (moreThanOneArch)
1605 ArchitectureName = I->getArchTypeName();
1607 ObjectFile &Obj = *ObjOrErr.get();
1608 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj))
1609 ProcessMachO(Filename, MachOOF, "", ArchitectureName);
1610 } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) {
1611 std::unique_ptr<Archive> &A = *AOrErr;
1612 outs() << "Archive : " << Filename;
1613 if (!ArchitectureName.empty())
1614 outs() << " (architecture " << ArchitectureName << ")";
1617 printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
1618 for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
1620 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
1621 if (ChildOrErr.getError())
1623 if (MachOObjectFile *O =
1624 dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
1625 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O))
1626 ProcessMachO(Filename, MachOOF, MachOOF->getFileName(),
1634 if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) {
1635 if (!checkMachOAndArchFlags(O, Filename))
1637 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) {
1638 ProcessMachO(Filename, MachOOF);
1640 errs() << "llvm-objdump: '" << Filename << "': "
1641 << "Object is not a Mach-O file type.\n";
1643 errs() << "llvm-objdump: '" << Filename << "': "
1644 << "Unrecognized file type.\n";
1647 typedef std::pair<uint64_t, const char *> BindInfoEntry;
1648 typedef std::vector<BindInfoEntry> BindTable;
1649 typedef BindTable::iterator bind_table_iterator;
1651 // The block of info used by the Symbolizer call backs.
1652 struct DisassembleInfo {
1656 SymbolAddressMap *AddrMap;
1657 std::vector<SectionRef> *Sections;
1658 const char *class_name;
1659 const char *selector_name;
1661 char *demangled_name;
1664 BindTable *bindtable;
1668 // SymbolizerGetOpInfo() is the operand information call back function.
1669 // This is called to get the symbolic information for operand(s) of an
1670 // instruction when it is being done. This routine does this from
1671 // the relocation information, symbol table, etc. That block of information
1672 // is a pointer to the struct DisassembleInfo that was passed when the
1673 // disassembler context was created and passed to back to here when
1674 // called back by the disassembler for instruction operands that could have
1675 // relocation information. The address of the instruction containing operand is
1676 // at the Pc parameter. The immediate value the operand has is passed in
1677 // op_info->Value and is at Offset past the start of the instruction and has a
1678 // byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the
1679 // LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol
1680 // names and addends of the symbolic expression to add for the operand. The
1681 // value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic
1682 // information is returned then this function returns 1 else it returns 0.
1683 static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset,
1684 uint64_t Size, int TagType, void *TagBuf) {
1685 struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo;
1686 struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf;
1687 uint64_t value = op_info->Value;
1689 // Make sure all fields returned are zero if we don't set them.
1690 memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1));
1691 op_info->Value = value;
1693 // If the TagType is not the value 1 which it code knows about or if no
1694 // verbose symbolic information is wanted then just return 0, indicating no
1695 // information is being returned.
1696 if (TagType != 1 || !info->verbose)
1699 unsigned int Arch = info->O->getArch();
1700 if (Arch == Triple::x86) {
1701 if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
1703 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1705 // Search the external relocation entries of a fully linked image
1706 // (if any) for an entry that matches this segment offset.
1707 // uint32_t seg_offset = (Pc + Offset);
1710 // In MH_OBJECT filetypes search the section's relocation entries (if any)
1711 // for an entry for this section offset.
1712 uint32_t sect_addr = info->S.getAddress();
1713 uint32_t sect_offset = (Pc + Offset) - sect_addr;
1714 bool reloc_found = false;
1716 MachO::any_relocation_info RE;
1717 bool isExtern = false;
1719 bool r_scattered = false;
1720 uint32_t r_value, pair_r_value, r_type;
1721 for (const RelocationRef &Reloc : info->S.relocations()) {
1722 uint64_t RelocOffset = Reloc.getOffset();
1723 if (RelocOffset == sect_offset) {
1724 Rel = Reloc.getRawDataRefImpl();
1725 RE = info->O->getRelocation(Rel);
1726 r_type = info->O->getAnyRelocationType(RE);
1727 r_scattered = info->O->isRelocationScattered(RE);
1729 r_value = info->O->getScatteredRelocationValue(RE);
1730 if (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
1731 r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) {
1732 DataRefImpl RelNext = Rel;
1733 info->O->moveRelocationNext(RelNext);
1734 MachO::any_relocation_info RENext;
1735 RENext = info->O->getRelocation(RelNext);
1736 if (info->O->isRelocationScattered(RENext))
1737 pair_r_value = info->O->getScatteredRelocationValue(RENext);
1742 isExtern = info->O->getPlainRelocationExternal(RE);
1744 symbol_iterator RelocSym = Reloc.getSymbol();
1752 if (reloc_found && isExtern) {
1753 ErrorOr<StringRef> SymName = Symbol.getName();
1754 if (std::error_code EC = SymName.getError())
1755 report_fatal_error(EC.message());
1756 const char *name = SymName->data();
1757 op_info->AddSymbol.Present = 1;
1758 op_info->AddSymbol.Name = name;
1759 // For i386 extern relocation entries the value in the instruction is
1760 // the offset from the symbol, and value is already set in op_info->Value.
1763 if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
1764 r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) {
1765 const char *add = GuessSymbolName(r_value, info->AddrMap);
1766 const char *sub = GuessSymbolName(pair_r_value, info->AddrMap);
1767 uint32_t offset = value - (r_value - pair_r_value);
1768 op_info->AddSymbol.Present = 1;
1770 op_info->AddSymbol.Name = add;
1772 op_info->AddSymbol.Value = r_value;
1773 op_info->SubtractSymbol.Present = 1;
1775 op_info->SubtractSymbol.Name = sub;
1777 op_info->SubtractSymbol.Value = pair_r_value;
1778 op_info->Value = offset;
1783 if (Arch == Triple::x86_64) {
1784 if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
1786 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1788 // Search the external relocation entries of a fully linked image
1789 // (if any) for an entry that matches this segment offset.
1790 // uint64_t seg_offset = (Pc + Offset);
1793 // In MH_OBJECT filetypes search the section's relocation entries (if any)
1794 // for an entry for this section offset.
1795 uint64_t sect_addr = info->S.getAddress();
1796 uint64_t sect_offset = (Pc + Offset) - sect_addr;
1797 bool reloc_found = false;
1799 MachO::any_relocation_info RE;
1800 bool isExtern = false;
1802 for (const RelocationRef &Reloc : info->S.relocations()) {
1803 uint64_t RelocOffset = Reloc.getOffset();
1804 if (RelocOffset == sect_offset) {
1805 Rel = Reloc.getRawDataRefImpl();
1806 RE = info->O->getRelocation(Rel);
1807 // NOTE: Scattered relocations don't exist on x86_64.
1808 isExtern = info->O->getPlainRelocationExternal(RE);
1810 symbol_iterator RelocSym = Reloc.getSymbol();
1817 if (reloc_found && isExtern) {
1818 // The Value passed in will be adjusted by the Pc if the instruction
1819 // adds the Pc. But for x86_64 external relocation entries the Value
1820 // is the offset from the external symbol.
1821 if (info->O->getAnyRelocationPCRel(RE))
1822 op_info->Value -= Pc + Offset + Size;
1823 ErrorOr<StringRef> SymName = Symbol.getName();
1824 if (std::error_code EC = SymName.getError())
1825 report_fatal_error(EC.message());
1826 const char *name = SymName->data();
1827 unsigned Type = info->O->getAnyRelocationType(RE);
1828 if (Type == MachO::X86_64_RELOC_SUBTRACTOR) {
1829 DataRefImpl RelNext = Rel;
1830 info->O->moveRelocationNext(RelNext);
1831 MachO::any_relocation_info RENext = info->O->getRelocation(RelNext);
1832 unsigned TypeNext = info->O->getAnyRelocationType(RENext);
1833 bool isExternNext = info->O->getPlainRelocationExternal(RENext);
1834 unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext);
1835 if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) {
1836 op_info->SubtractSymbol.Present = 1;
1837 op_info->SubtractSymbol.Name = name;
1838 symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum);
1839 Symbol = *RelocSymNext;
1840 ErrorOr<StringRef> SymNameNext = Symbol.getName();
1841 if (std::error_code EC = SymNameNext.getError())
1842 report_fatal_error(EC.message());
1843 name = SymNameNext->data();
1846 // TODO: add the VariantKinds to op_info->VariantKind for relocation types
1847 // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT.
1848 op_info->AddSymbol.Present = 1;
1849 op_info->AddSymbol.Name = name;
1854 if (Arch == Triple::arm) {
1855 if (Offset != 0 || (Size != 4 && Size != 2))
1857 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1859 // Search the external relocation entries of a fully linked image
1860 // (if any) for an entry that matches this segment offset.
1861 // uint32_t seg_offset = (Pc + Offset);
1864 // In MH_OBJECT filetypes search the section's relocation entries (if any)
1865 // for an entry for this section offset.
1866 uint32_t sect_addr = info->S.getAddress();
1867 uint32_t sect_offset = (Pc + Offset) - sect_addr;
1869 MachO::any_relocation_info RE;
1870 bool isExtern = false;
1872 bool r_scattered = false;
1873 uint32_t r_value, pair_r_value, r_type, r_length, other_half;
1875 std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
1876 [&](const RelocationRef &Reloc) {
1877 uint64_t RelocOffset = Reloc.getOffset();
1878 return RelocOffset == sect_offset;
1881 if (Reloc == info->S.relocations().end())
1884 Rel = Reloc->getRawDataRefImpl();
1885 RE = info->O->getRelocation(Rel);
1886 r_length = info->O->getAnyRelocationLength(RE);
1887 r_scattered = info->O->isRelocationScattered(RE);
1889 r_value = info->O->getScatteredRelocationValue(RE);
1890 r_type = info->O->getScatteredRelocationType(RE);
1892 r_type = info->O->getAnyRelocationType(RE);
1893 isExtern = info->O->getPlainRelocationExternal(RE);
1895 symbol_iterator RelocSym = Reloc->getSymbol();
1899 if (r_type == MachO::ARM_RELOC_HALF ||
1900 r_type == MachO::ARM_RELOC_SECTDIFF ||
1901 r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF ||
1902 r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
1903 DataRefImpl RelNext = Rel;
1904 info->O->moveRelocationNext(RelNext);
1905 MachO::any_relocation_info RENext;
1906 RENext = info->O->getRelocation(RelNext);
1907 other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff;
1908 if (info->O->isRelocationScattered(RENext))
1909 pair_r_value = info->O->getScatteredRelocationValue(RENext);
1913 ErrorOr<StringRef> SymName = Symbol.getName();
1914 if (std::error_code EC = SymName.getError())
1915 report_fatal_error(EC.message());
1916 const char *name = SymName->data();
1917 op_info->AddSymbol.Present = 1;
1918 op_info->AddSymbol.Name = name;
1920 case MachO::ARM_RELOC_HALF:
1921 if ((r_length & 0x1) == 1) {
1922 op_info->Value = value << 16 | other_half;
1923 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
1925 op_info->Value = other_half << 16 | value;
1926 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
1934 // If we have a branch that is not an external relocation entry then
1935 // return 0 so the code in tryAddingSymbolicOperand() can use the
1936 // SymbolLookUp call back with the branch target address to look up the
1937 // symbol and possiblity add an annotation for a symbol stub.
1938 if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 ||
1939 r_type == MachO::ARM_THUMB_RELOC_BR22))
1942 uint32_t offset = 0;
1943 if (r_type == MachO::ARM_RELOC_HALF ||
1944 r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
1945 if ((r_length & 0x1) == 1)
1946 value = value << 16 | other_half;
1948 value = other_half << 16 | value;
1950 if (r_scattered && (r_type != MachO::ARM_RELOC_HALF &&
1951 r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) {
1952 offset = value - r_value;
1956 if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
1957 if ((r_length & 0x1) == 1)
1958 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
1960 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
1961 const char *add = GuessSymbolName(r_value, info->AddrMap);
1962 const char *sub = GuessSymbolName(pair_r_value, info->AddrMap);
1963 int32_t offset = value - (r_value - pair_r_value);
1964 op_info->AddSymbol.Present = 1;
1966 op_info->AddSymbol.Name = add;
1968 op_info->AddSymbol.Value = r_value;
1969 op_info->SubtractSymbol.Present = 1;
1971 op_info->SubtractSymbol.Name = sub;
1973 op_info->SubtractSymbol.Value = pair_r_value;
1974 op_info->Value = offset;
1978 op_info->AddSymbol.Present = 1;
1979 op_info->Value = offset;
1980 if (r_type == MachO::ARM_RELOC_HALF) {
1981 if ((r_length & 0x1) == 1)
1982 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
1984 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
1986 const char *add = GuessSymbolName(value, info->AddrMap);
1987 if (add != nullptr) {
1988 op_info->AddSymbol.Name = add;
1991 op_info->AddSymbol.Value = value;
1994 if (Arch == Triple::aarch64) {
1995 if (Offset != 0 || Size != 4)
1997 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1999 // Search the external relocation entries of a fully linked image
2000 // (if any) for an entry that matches this segment offset.
2001 // uint64_t seg_offset = (Pc + Offset);
2004 // In MH_OBJECT filetypes search the section's relocation entries (if any)
2005 // for an entry for this section offset.
2006 uint64_t sect_addr = info->S.getAddress();
2007 uint64_t sect_offset = (Pc + Offset) - sect_addr;
2009 std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
2010 [&](const RelocationRef &Reloc) {
2011 uint64_t RelocOffset = Reloc.getOffset();
2012 return RelocOffset == sect_offset;
2015 if (Reloc == info->S.relocations().end())
2018 DataRefImpl Rel = Reloc->getRawDataRefImpl();
2019 MachO::any_relocation_info RE = info->O->getRelocation(Rel);
2020 uint32_t r_type = info->O->getAnyRelocationType(RE);
2021 if (r_type == MachO::ARM64_RELOC_ADDEND) {
2022 DataRefImpl RelNext = Rel;
2023 info->O->moveRelocationNext(RelNext);
2024 MachO::any_relocation_info RENext = info->O->getRelocation(RelNext);
2026 value = info->O->getPlainRelocationSymbolNum(RENext);
2027 op_info->Value = value;
2030 // NOTE: Scattered relocations don't exist on arm64.
2031 if (!info->O->getPlainRelocationExternal(RE))
2033 ErrorOr<StringRef> SymName = Reloc->getSymbol()->getName();
2034 if (std::error_code EC = SymName.getError())
2035 report_fatal_error(EC.message());
2036 const char *name = SymName->data();
2037 op_info->AddSymbol.Present = 1;
2038 op_info->AddSymbol.Name = name;
2041 case MachO::ARM64_RELOC_PAGE21:
2043 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE;
2045 case MachO::ARM64_RELOC_PAGEOFF12:
2047 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF;
2049 case MachO::ARM64_RELOC_GOT_LOAD_PAGE21:
2051 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE;
2053 case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12:
2055 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF;
2057 case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21:
2058 /* @tvlppage is not implemented in llvm-mc */
2059 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP;
2061 case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12:
2062 /* @tvlppageoff is not implemented in llvm-mc */
2063 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF;
2066 case MachO::ARM64_RELOC_BRANCH26:
2067 op_info->VariantKind = LLVMDisassembler_VariantKind_None;
2075 // GuessCstringPointer is passed the address of what might be a pointer to a
2076 // literal string in a cstring section. If that address is in a cstring section
2077 // it returns a pointer to that string. Else it returns nullptr.
2078 static const char *GuessCstringPointer(uint64_t ReferenceValue,
2079 struct DisassembleInfo *info) {
2080 for (const auto &Load : info->O->load_commands()) {
2081 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
2082 MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
2083 for (unsigned J = 0; J < Seg.nsects; ++J) {
2084 MachO::section_64 Sec = info->O->getSection64(Load, J);
2085 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2086 if (section_type == MachO::S_CSTRING_LITERALS &&
2087 ReferenceValue >= Sec.addr &&
2088 ReferenceValue < Sec.addr + Sec.size) {
2089 uint64_t sect_offset = ReferenceValue - Sec.addr;
2090 uint64_t object_offset = Sec.offset + sect_offset;
2091 StringRef MachOContents = info->O->getData();
2092 uint64_t object_size = MachOContents.size();
2093 const char *object_addr = (const char *)MachOContents.data();
2094 if (object_offset < object_size) {
2095 const char *name = object_addr + object_offset;
2102 } else if (Load.C.cmd == MachO::LC_SEGMENT) {
2103 MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load);
2104 for (unsigned J = 0; J < Seg.nsects; ++J) {
2105 MachO::section Sec = info->O->getSection(Load, J);
2106 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2107 if (section_type == MachO::S_CSTRING_LITERALS &&
2108 ReferenceValue >= Sec.addr &&
2109 ReferenceValue < Sec.addr + Sec.size) {
2110 uint64_t sect_offset = ReferenceValue - Sec.addr;
2111 uint64_t object_offset = Sec.offset + sect_offset;
2112 StringRef MachOContents = info->O->getData();
2113 uint64_t object_size = MachOContents.size();
2114 const char *object_addr = (const char *)MachOContents.data();
2115 if (object_offset < object_size) {
2116 const char *name = object_addr + object_offset;
2128 // GuessIndirectSymbol returns the name of the indirect symbol for the
2129 // ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe
2130 // an address of a symbol stub or a lazy or non-lazy pointer to associate the
2131 // symbol name being referenced by the stub or pointer.
2132 static const char *GuessIndirectSymbol(uint64_t ReferenceValue,
2133 struct DisassembleInfo *info) {
2134 MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand();
2135 MachO::symtab_command Symtab = info->O->getSymtabLoadCommand();
2136 for (const auto &Load : info->O->load_commands()) {
2137 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
2138 MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
2139 for (unsigned J = 0; J < Seg.nsects; ++J) {
2140 MachO::section_64 Sec = info->O->getSection64(Load, J);
2141 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2142 if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
2143 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
2144 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
2145 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
2146 section_type == MachO::S_SYMBOL_STUBS) &&
2147 ReferenceValue >= Sec.addr &&
2148 ReferenceValue < Sec.addr + Sec.size) {
2150 if (section_type == MachO::S_SYMBOL_STUBS)
2151 stride = Sec.reserved2;
2156 uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride;
2157 if (index < Dysymtab.nindirectsyms) {
2158 uint32_t indirect_symbol =
2159 info->O->getIndirectSymbolTableEntry(Dysymtab, index);
2160 if (indirect_symbol < Symtab.nsyms) {
2161 symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol);
2162 SymbolRef Symbol = *Sym;
2163 ErrorOr<StringRef> SymName = Symbol.getName();
2164 if (std::error_code EC = SymName.getError())
2165 report_fatal_error(EC.message());
2166 const char *name = SymName->data();
2172 } else if (Load.C.cmd == MachO::LC_SEGMENT) {
2173 MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load);
2174 for (unsigned J = 0; J < Seg.nsects; ++J) {
2175 MachO::section Sec = info->O->getSection(Load, J);
2176 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2177 if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
2178 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
2179 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
2180 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
2181 section_type == MachO::S_SYMBOL_STUBS) &&
2182 ReferenceValue >= Sec.addr &&
2183 ReferenceValue < Sec.addr + Sec.size) {
2185 if (section_type == MachO::S_SYMBOL_STUBS)
2186 stride = Sec.reserved2;
2191 uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride;
2192 if (index < Dysymtab.nindirectsyms) {
2193 uint32_t indirect_symbol =
2194 info->O->getIndirectSymbolTableEntry(Dysymtab, index);
2195 if (indirect_symbol < Symtab.nsyms) {
2196 symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol);
2197 SymbolRef Symbol = *Sym;
2198 ErrorOr<StringRef> SymName = Symbol.getName();
2199 if (std::error_code EC = SymName.getError())
2200 report_fatal_error(EC.message());
2201 const char *name = SymName->data();
2212 // method_reference() is called passing it the ReferenceName that might be
2213 // a reference it to an Objective-C method call. If so then it allocates and
2214 // assembles a method call string with the values last seen and saved in
2215 // the DisassembleInfo's class_name and selector_name fields. This is saved
2216 // into the method field of the info and any previous string is free'ed.
2217 // Then the class_name field in the info is set to nullptr. The method call
2218 // string is set into ReferenceName and ReferenceType is set to
2219 // LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call
2220 // then both ReferenceType and ReferenceName are left unchanged.
2221 static void method_reference(struct DisassembleInfo *info,
2222 uint64_t *ReferenceType,
2223 const char **ReferenceName) {
2224 unsigned int Arch = info->O->getArch();
2225 if (*ReferenceName != nullptr) {
2226 if (strcmp(*ReferenceName, "_objc_msgSend") == 0) {
2227 if (info->selector_name != nullptr) {
2228 if (info->method != nullptr)
2230 if (info->class_name != nullptr) {
2231 info->method = (char *)malloc(5 + strlen(info->class_name) +
2232 strlen(info->selector_name));
2233 if (info->method != nullptr) {
2234 strcpy(info->method, "+[");
2235 strcat(info->method, info->class_name);
2236 strcat(info->method, " ");
2237 strcat(info->method, info->selector_name);
2238 strcat(info->method, "]");
2239 *ReferenceName = info->method;
2240 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
2243 info->method = (char *)malloc(9 + strlen(info->selector_name));
2244 if (info->method != nullptr) {
2245 if (Arch == Triple::x86_64)
2246 strcpy(info->method, "-[%rdi ");
2247 else if (Arch == Triple::aarch64)
2248 strcpy(info->method, "-[x0 ");
2250 strcpy(info->method, "-[r? ");
2251 strcat(info->method, info->selector_name);
2252 strcat(info->method, "]");
2253 *ReferenceName = info->method;
2254 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
2257 info->class_name = nullptr;
2259 } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) {
2260 if (info->selector_name != nullptr) {
2261 if (info->method != nullptr)
2263 info->method = (char *)malloc(17 + strlen(info->selector_name));
2264 if (info->method != nullptr) {
2265 if (Arch == Triple::x86_64)
2266 strcpy(info->method, "-[[%rdi super] ");
2267 else if (Arch == Triple::aarch64)
2268 strcpy(info->method, "-[[x0 super] ");
2270 strcpy(info->method, "-[[r? super] ");
2271 strcat(info->method, info->selector_name);
2272 strcat(info->method, "]");
2273 *ReferenceName = info->method;
2274 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
2276 info->class_name = nullptr;
2282 // GuessPointerPointer() is passed the address of what might be a pointer to
2283 // a reference to an Objective-C class, selector, message ref or cfstring.
2284 // If so the value of the pointer is returned and one of the booleans are set
2285 // to true. If not zero is returned and all the booleans are set to false.
2286 static uint64_t GuessPointerPointer(uint64_t ReferenceValue,
2287 struct DisassembleInfo *info,
2288 bool &classref, bool &selref, bool &msgref,
2294 for (const auto &Load : info->O->load_commands()) {
2295 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
2296 MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
2297 for (unsigned J = 0; J < Seg.nsects; ++J) {
2298 MachO::section_64 Sec = info->O->getSection64(Load, J);
2299 if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 ||
2300 strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 ||
2301 strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 ||
2302 strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 ||
2303 strncmp(Sec.sectname, "__cfstring", 16) == 0) &&
2304 ReferenceValue >= Sec.addr &&
2305 ReferenceValue < Sec.addr + Sec.size) {
2306 uint64_t sect_offset = ReferenceValue - Sec.addr;
2307 uint64_t object_offset = Sec.offset + sect_offset;
2308 StringRef MachOContents = info->O->getData();
2309 uint64_t object_size = MachOContents.size();
2310 const char *object_addr = (const char *)MachOContents.data();
2311 if (object_offset < object_size) {
2312 uint64_t pointer_value;
2313 memcpy(&pointer_value, object_addr + object_offset,
2315 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
2316 sys::swapByteOrder(pointer_value);
2317 if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0)
2319 else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 ||
2320 strncmp(Sec.sectname, "__objc_superrefs", 16) == 0)
2322 else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 &&
2323 ReferenceValue + 8 < Sec.addr + Sec.size) {
2325 memcpy(&pointer_value, object_addr + object_offset + 8,
2327 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
2328 sys::swapByteOrder(pointer_value);
2329 } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0)
2331 return pointer_value;
2338 // TODO: Look for LC_SEGMENT for 32-bit Mach-O files.
2343 // get_pointer_64 returns a pointer to the bytes in the object file at the
2344 // Address from a section in the Mach-O file. And indirectly returns the
2345 // offset into the section, number of bytes left in the section past the offset
2346 // and which section is was being referenced. If the Address is not in a
2347 // section nullptr is returned.
2348 static const char *get_pointer_64(uint64_t Address, uint32_t &offset,
2349 uint32_t &left, SectionRef &S,
2350 DisassembleInfo *info,
2351 bool objc_only = false) {
2355 for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) {
2356 uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress();
2357 uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize();
2362 ((*(info->Sections))[SectIdx]).getName(SectName);
2363 DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl();
2364 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
2365 if (SegName != "__OBJC" && SectName != "__cstring")
2368 if (Address >= SectAddress && Address < SectAddress + SectSize) {
2369 S = (*(info->Sections))[SectIdx];
2370 offset = Address - SectAddress;
2371 left = SectSize - offset;
2372 StringRef SectContents;
2373 ((*(info->Sections))[SectIdx]).getContents(SectContents);
2374 return SectContents.data() + offset;
2380 static const char *get_pointer_32(uint32_t Address, uint32_t &offset,
2381 uint32_t &left, SectionRef &S,
2382 DisassembleInfo *info,
2383 bool objc_only = false) {
2384 return get_pointer_64(Address, offset, left, S, info, objc_only);
2387 // get_symbol_64() returns the name of a symbol (or nullptr) and the address of
2388 // the symbol indirectly through n_value. Based on the relocation information
2389 // for the specified section offset in the specified section reference.
2390 // If no relocation information is found and a non-zero ReferenceValue for the
2391 // symbol is passed, look up that address in the info's AddrMap.
2392 static const char *get_symbol_64(uint32_t sect_offset, SectionRef S,
2393 DisassembleInfo *info, uint64_t &n_value,
2394 uint64_t ReferenceValue = 0) {
2399 // See if there is an external relocation entry at the sect_offset.
2400 bool reloc_found = false;
2402 MachO::any_relocation_info RE;
2403 bool isExtern = false;
2405 for (const RelocationRef &Reloc : S.relocations()) {
2406 uint64_t RelocOffset = Reloc.getOffset();
2407 if (RelocOffset == sect_offset) {
2408 Rel = Reloc.getRawDataRefImpl();
2409 RE = info->O->getRelocation(Rel);
2410 if (info->O->isRelocationScattered(RE))
2412 isExtern = info->O->getPlainRelocationExternal(RE);
2414 symbol_iterator RelocSym = Reloc.getSymbol();
2421 // If there is an external relocation entry for a symbol in this section
2422 // at this section_offset then use that symbol's value for the n_value
2423 // and return its name.
2424 const char *SymbolName = nullptr;
2425 if (reloc_found && isExtern) {
2426 n_value = Symbol.getValue();
2427 ErrorOr<StringRef> NameOrError = Symbol.getName();
2428 if (std::error_code EC = NameOrError.getError())
2429 report_fatal_error(EC.message());
2430 StringRef Name = *NameOrError;
2431 if (!Name.empty()) {
2432 SymbolName = Name.data();
2437 // TODO: For fully linked images, look through the external relocation
2438 // entries off the dynamic symtab command. For these the r_offset is from the
2439 // start of the first writeable segment in the Mach-O file. So the offset
2440 // to this section from that segment is passed to this routine by the caller,
2441 // as the database_offset. Which is the difference of the section's starting
2442 // address and the first writable segment.
2444 // NOTE: need add passing the database_offset to this routine.
2446 // We did not find an external relocation entry so look up the ReferenceValue
2447 // as an address of a symbol and if found return that symbol's name.
2448 SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
2453 static const char *get_symbol_32(uint32_t sect_offset, SectionRef S,
2454 DisassembleInfo *info,
2455 uint32_t ReferenceValue) {
2457 return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue);
2460 // These are structs in the Objective-C meta data and read to produce the
2461 // comments for disassembly. While these are part of the ABI they are no
2462 // public defintions. So the are here not in include/llvm/Support/MachO.h .
2464 // The cfstring object in a 64-bit Mach-O file.
2465 struct cfstring64_t {
2466 uint64_t isa; // class64_t * (64-bit pointer)
2467 uint64_t flags; // flag bits
2468 uint64_t characters; // char * (64-bit pointer)
2469 uint64_t length; // number of non-NULL characters in above
2472 // The class object in a 64-bit Mach-O file.
2474 uint64_t isa; // class64_t * (64-bit pointer)
2475 uint64_t superclass; // class64_t * (64-bit pointer)
2476 uint64_t cache; // Cache (64-bit pointer)
2477 uint64_t vtable; // IMP * (64-bit pointer)
2478 uint64_t data; // class_ro64_t * (64-bit pointer)
2482 uint32_t isa; /* class32_t * (32-bit pointer) */
2483 uint32_t superclass; /* class32_t * (32-bit pointer) */
2484 uint32_t cache; /* Cache (32-bit pointer) */
2485 uint32_t vtable; /* IMP * (32-bit pointer) */
2486 uint32_t data; /* class_ro32_t * (32-bit pointer) */
2489 struct class_ro64_t {
2491 uint32_t instanceStart;
2492 uint32_t instanceSize;
2494 uint64_t ivarLayout; // const uint8_t * (64-bit pointer)
2495 uint64_t name; // const char * (64-bit pointer)
2496 uint64_t baseMethods; // const method_list_t * (64-bit pointer)
2497 uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer)
2498 uint64_t ivars; // const ivar_list_t * (64-bit pointer)
2499 uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer)
2500 uint64_t baseProperties; // const struct objc_property_list (64-bit pointer)
2503 struct class_ro32_t {
2505 uint32_t instanceStart;
2506 uint32_t instanceSize;
2507 uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */
2508 uint32_t name; /* const char * (32-bit pointer) */
2509 uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */
2510 uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */
2511 uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */
2512 uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */
2513 uint32_t baseProperties; /* const struct objc_property_list *
2517 /* Values for class_ro{64,32}_t->flags */
2518 #define RO_META (1 << 0)
2519 #define RO_ROOT (1 << 1)
2520 #define RO_HAS_CXX_STRUCTORS (1 << 2)
2522 struct method_list64_t {
2525 /* struct method64_t first; These structures follow inline */
2528 struct method_list32_t {
2531 /* struct method32_t first; These structures follow inline */
2535 uint64_t name; /* SEL (64-bit pointer) */
2536 uint64_t types; /* const char * (64-bit pointer) */
2537 uint64_t imp; /* IMP (64-bit pointer) */
2541 uint32_t name; /* SEL (32-bit pointer) */
2542 uint32_t types; /* const char * (32-bit pointer) */
2543 uint32_t imp; /* IMP (32-bit pointer) */
2546 struct protocol_list64_t {
2547 uint64_t count; /* uintptr_t (a 64-bit value) */
2548 /* struct protocol64_t * list[0]; These pointers follow inline */
2551 struct protocol_list32_t {
2552 uint32_t count; /* uintptr_t (a 32-bit value) */
2553 /* struct protocol32_t * list[0]; These pointers follow inline */
2556 struct protocol64_t {
2557 uint64_t isa; /* id * (64-bit pointer) */
2558 uint64_t name; /* const char * (64-bit pointer) */
2559 uint64_t protocols; /* struct protocol_list64_t *
2561 uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */
2562 uint64_t classMethods; /* method_list_t * (64-bit pointer) */
2563 uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */
2564 uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */
2565 uint64_t instanceProperties; /* struct objc_property_list *
2569 struct protocol32_t {
2570 uint32_t isa; /* id * (32-bit pointer) */
2571 uint32_t name; /* const char * (32-bit pointer) */
2572 uint32_t protocols; /* struct protocol_list_t *
2574 uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */
2575 uint32_t classMethods; /* method_list_t * (32-bit pointer) */
2576 uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */
2577 uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */
2578 uint32_t instanceProperties; /* struct objc_property_list *
2582 struct ivar_list64_t {
2585 /* struct ivar64_t first; These structures follow inline */
2588 struct ivar_list32_t {
2591 /* struct ivar32_t first; These structures follow inline */
2595 uint64_t offset; /* uintptr_t * (64-bit pointer) */
2596 uint64_t name; /* const char * (64-bit pointer) */
2597 uint64_t type; /* const char * (64-bit pointer) */
2603 uint32_t offset; /* uintptr_t * (32-bit pointer) */
2604 uint32_t name; /* const char * (32-bit pointer) */
2605 uint32_t type; /* const char * (32-bit pointer) */
2610 struct objc_property_list64 {
2613 /* struct objc_property64 first; These structures follow inline */
2616 struct objc_property_list32 {
2619 /* struct objc_property32 first; These structures follow inline */
2622 struct objc_property64 {
2623 uint64_t name; /* const char * (64-bit pointer) */
2624 uint64_t attributes; /* const char * (64-bit pointer) */
2627 struct objc_property32 {
2628 uint32_t name; /* const char * (32-bit pointer) */
2629 uint32_t attributes; /* const char * (32-bit pointer) */
2632 struct category64_t {
2633 uint64_t name; /* const char * (64-bit pointer) */
2634 uint64_t cls; /* struct class_t * (64-bit pointer) */
2635 uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */
2636 uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */
2637 uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */
2638 uint64_t instanceProperties; /* struct objc_property_list *
2642 struct category32_t {
2643 uint32_t name; /* const char * (32-bit pointer) */
2644 uint32_t cls; /* struct class_t * (32-bit pointer) */
2645 uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */
2646 uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */
2647 uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */
2648 uint32_t instanceProperties; /* struct objc_property_list *
2652 struct objc_image_info64 {
2656 struct objc_image_info32 {
2660 struct imageInfo_t {
2664 /* masks for objc_image_info.flags */
2665 #define OBJC_IMAGE_IS_REPLACEMENT (1 << 0)
2666 #define OBJC_IMAGE_SUPPORTS_GC (1 << 1)
2668 struct message_ref64 {
2669 uint64_t imp; /* IMP (64-bit pointer) */
2670 uint64_t sel; /* SEL (64-bit pointer) */
2673 struct message_ref32 {
2674 uint32_t imp; /* IMP (32-bit pointer) */
2675 uint32_t sel; /* SEL (32-bit pointer) */
2678 // Objective-C 1 (32-bit only) meta data structs.
2680 struct objc_module_t {
2683 uint32_t name; /* char * (32-bit pointer) */
2684 uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */
2687 struct objc_symtab_t {
2688 uint32_t sel_ref_cnt;
2689 uint32_t refs; /* SEL * (32-bit pointer) */
2690 uint16_t cls_def_cnt;
2691 uint16_t cat_def_cnt;
2692 // uint32_t defs[1]; /* void * (32-bit pointer) variable size */
2695 struct objc_class_t {
2696 uint32_t isa; /* struct objc_class * (32-bit pointer) */
2697 uint32_t super_class; /* struct objc_class * (32-bit pointer) */
2698 uint32_t name; /* const char * (32-bit pointer) */
2701 int32_t instance_size;
2702 uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */
2703 uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */
2704 uint32_t cache; /* struct objc_cache * (32-bit pointer) */
2705 uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */
2708 #define CLS_GETINFO(cls, infomask) ((cls)->info & (infomask))
2709 // class is not a metaclass
2710 #define CLS_CLASS 0x1
2711 // class is a metaclass
2712 #define CLS_META 0x2
2714 struct objc_category_t {
2715 uint32_t category_name; /* char * (32-bit pointer) */
2716 uint32_t class_name; /* char * (32-bit pointer) */
2717 uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */
2718 uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */
2719 uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */
2722 struct objc_ivar_t {
2723 uint32_t ivar_name; /* char * (32-bit pointer) */
2724 uint32_t ivar_type; /* char * (32-bit pointer) */
2725 int32_t ivar_offset;
2728 struct objc_ivar_list_t {
2730 // struct objc_ivar_t ivar_list[1]; /* variable length structure */
2733 struct objc_method_list_t {
2734 uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */
2735 int32_t method_count;
2736 // struct objc_method_t method_list[1]; /* variable length structure */
2739 struct objc_method_t {
2740 uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */
2741 uint32_t method_types; /* char * (32-bit pointer) */
2742 uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...)
2746 struct objc_protocol_list_t {
2747 uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */
2749 // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t *
2750 // (32-bit pointer) */
2753 struct objc_protocol_t {
2754 uint32_t isa; /* struct objc_class * (32-bit pointer) */
2755 uint32_t protocol_name; /* char * (32-bit pointer) */
2756 uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */
2757 uint32_t instance_methods; /* struct objc_method_description_list *
2759 uint32_t class_methods; /* struct objc_method_description_list *
2763 struct objc_method_description_list_t {
2765 // struct objc_method_description_t list[1];
2768 struct objc_method_description_t {
2769 uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */
2770 uint32_t types; /* char * (32-bit pointer) */
2773 inline void swapStruct(struct cfstring64_t &cfs) {
2774 sys::swapByteOrder(cfs.isa);
2775 sys::swapByteOrder(cfs.flags);
2776 sys::swapByteOrder(cfs.characters);
2777 sys::swapByteOrder(cfs.length);
2780 inline void swapStruct(struct class64_t &c) {
2781 sys::swapByteOrder(c.isa);
2782 sys::swapByteOrder(c.superclass);
2783 sys::swapByteOrder(c.cache);
2784 sys::swapByteOrder(c.vtable);
2785 sys::swapByteOrder(c.data);
2788 inline void swapStruct(struct class32_t &c) {
2789 sys::swapByteOrder(c.isa);
2790 sys::swapByteOrder(c.superclass);
2791 sys::swapByteOrder(c.cache);
2792 sys::swapByteOrder(c.vtable);
2793 sys::swapByteOrder(c.data);
2796 inline void swapStruct(struct class_ro64_t &cro) {
2797 sys::swapByteOrder(cro.flags);
2798 sys::swapByteOrder(cro.instanceStart);
2799 sys::swapByteOrder(cro.instanceSize);
2800 sys::swapByteOrder(cro.reserved);
2801 sys::swapByteOrder(cro.ivarLayout);
2802 sys::swapByteOrder(cro.name);
2803 sys::swapByteOrder(cro.baseMethods);
2804 sys::swapByteOrder(cro.baseProtocols);
2805 sys::swapByteOrder(cro.ivars);
2806 sys::swapByteOrder(cro.weakIvarLayout);
2807 sys::swapByteOrder(cro.baseProperties);
2810 inline void swapStruct(struct class_ro32_t &cro) {
2811 sys::swapByteOrder(cro.flags);
2812 sys::swapByteOrder(cro.instanceStart);
2813 sys::swapByteOrder(cro.instanceSize);
2814 sys::swapByteOrder(cro.ivarLayout);
2815 sys::swapByteOrder(cro.name);
2816 sys::swapByteOrder(cro.baseMethods);
2817 sys::swapByteOrder(cro.baseProtocols);
2818 sys::swapByteOrder(cro.ivars);
2819 sys::swapByteOrder(cro.weakIvarLayout);
2820 sys::swapByteOrder(cro.baseProperties);
2823 inline void swapStruct(struct method_list64_t &ml) {
2824 sys::swapByteOrder(ml.entsize);
2825 sys::swapByteOrder(ml.count);
2828 inline void swapStruct(struct method_list32_t &ml) {
2829 sys::swapByteOrder(ml.entsize);
2830 sys::swapByteOrder(ml.count);
2833 inline void swapStruct(struct method64_t &m) {
2834 sys::swapByteOrder(m.name);
2835 sys::swapByteOrder(m.types);
2836 sys::swapByteOrder(m.imp);
2839 inline void swapStruct(struct method32_t &m) {
2840 sys::swapByteOrder(m.name);
2841 sys::swapByteOrder(m.types);
2842 sys::swapByteOrder(m.imp);
2845 inline void swapStruct(struct protocol_list64_t &pl) {
2846 sys::swapByteOrder(pl.count);
2849 inline void swapStruct(struct protocol_list32_t &pl) {
2850 sys::swapByteOrder(pl.count);
2853 inline void swapStruct(struct protocol64_t &p) {
2854 sys::swapByteOrder(p.isa);
2855 sys::swapByteOrder(p.name);
2856 sys::swapByteOrder(p.protocols);
2857 sys::swapByteOrder(p.instanceMethods);
2858 sys::swapByteOrder(p.classMethods);
2859 sys::swapByteOrder(p.optionalInstanceMethods);
2860 sys::swapByteOrder(p.optionalClassMethods);
2861 sys::swapByteOrder(p.instanceProperties);
2864 inline void swapStruct(struct protocol32_t &p) {
2865 sys::swapByteOrder(p.isa);
2866 sys::swapByteOrder(p.name);
2867 sys::swapByteOrder(p.protocols);
2868 sys::swapByteOrder(p.instanceMethods);
2869 sys::swapByteOrder(p.classMethods);
2870 sys::swapByteOrder(p.optionalInstanceMethods);
2871 sys::swapByteOrder(p.optionalClassMethods);
2872 sys::swapByteOrder(p.instanceProperties);
2875 inline void swapStruct(struct ivar_list64_t &il) {
2876 sys::swapByteOrder(il.entsize);
2877 sys::swapByteOrder(il.count);
2880 inline void swapStruct(struct ivar_list32_t &il) {
2881 sys::swapByteOrder(il.entsize);
2882 sys::swapByteOrder(il.count);
2885 inline void swapStruct(struct ivar64_t &i) {
2886 sys::swapByteOrder(i.offset);
2887 sys::swapByteOrder(i.name);
2888 sys::swapByteOrder(i.type);
2889 sys::swapByteOrder(i.alignment);
2890 sys::swapByteOrder(i.size);
2893 inline void swapStruct(struct ivar32_t &i) {
2894 sys::swapByteOrder(i.offset);
2895 sys::swapByteOrder(i.name);
2896 sys::swapByteOrder(i.type);
2897 sys::swapByteOrder(i.alignment);
2898 sys::swapByteOrder(i.size);
2901 inline void swapStruct(struct objc_property_list64 &pl) {
2902 sys::swapByteOrder(pl.entsize);
2903 sys::swapByteOrder(pl.count);
2906 inline void swapStruct(struct objc_property_list32 &pl) {
2907 sys::swapByteOrder(pl.entsize);
2908 sys::swapByteOrder(pl.count);
2911 inline void swapStruct(struct objc_property64 &op) {
2912 sys::swapByteOrder(op.name);
2913 sys::swapByteOrder(op.attributes);
2916 inline void swapStruct(struct objc_property32 &op) {
2917 sys::swapByteOrder(op.name);
2918 sys::swapByteOrder(op.attributes);
2921 inline void swapStruct(struct category64_t &c) {
2922 sys::swapByteOrder(c.name);
2923 sys::swapByteOrder(c.cls);
2924 sys::swapByteOrder(c.instanceMethods);
2925 sys::swapByteOrder(c.classMethods);
2926 sys::swapByteOrder(c.protocols);
2927 sys::swapByteOrder(c.instanceProperties);
2930 inline void swapStruct(struct category32_t &c) {
2931 sys::swapByteOrder(c.name);
2932 sys::swapByteOrder(c.cls);
2933 sys::swapByteOrder(c.instanceMethods);
2934 sys::swapByteOrder(c.classMethods);
2935 sys::swapByteOrder(c.protocols);
2936 sys::swapByteOrder(c.instanceProperties);
2939 inline void swapStruct(struct objc_image_info64 &o) {
2940 sys::swapByteOrder(o.version);
2941 sys::swapByteOrder(o.flags);
2944 inline void swapStruct(struct objc_image_info32 &o) {
2945 sys::swapByteOrder(o.version);
2946 sys::swapByteOrder(o.flags);
2949 inline void swapStruct(struct imageInfo_t &o) {
2950 sys::swapByteOrder(o.version);
2951 sys::swapByteOrder(o.flags);
2954 inline void swapStruct(struct message_ref64 &mr) {
2955 sys::swapByteOrder(mr.imp);
2956 sys::swapByteOrder(mr.sel);
2959 inline void swapStruct(struct message_ref32 &mr) {
2960 sys::swapByteOrder(mr.imp);
2961 sys::swapByteOrder(mr.sel);
2964 inline void swapStruct(struct objc_module_t &module) {
2965 sys::swapByteOrder(module.version);
2966 sys::swapByteOrder(module.size);
2967 sys::swapByteOrder(module.name);
2968 sys::swapByteOrder(module.symtab);
2971 inline void swapStruct(struct objc_symtab_t &symtab) {
2972 sys::swapByteOrder(symtab.sel_ref_cnt);
2973 sys::swapByteOrder(symtab.refs);
2974 sys::swapByteOrder(symtab.cls_def_cnt);
2975 sys::swapByteOrder(symtab.cat_def_cnt);
2978 inline void swapStruct(struct objc_class_t &objc_class) {
2979 sys::swapByteOrder(objc_class.isa);
2980 sys::swapByteOrder(objc_class.super_class);
2981 sys::swapByteOrder(objc_class.name);
2982 sys::swapByteOrder(objc_class.version);
2983 sys::swapByteOrder(objc_class.info);
2984 sys::swapByteOrder(objc_class.instance_size);
2985 sys::swapByteOrder(objc_class.ivars);
2986 sys::swapByteOrder(objc_class.methodLists);
2987 sys::swapByteOrder(objc_class.cache);
2988 sys::swapByteOrder(objc_class.protocols);
2991 inline void swapStruct(struct objc_category_t &objc_category) {
2992 sys::swapByteOrder(objc_category.category_name);
2993 sys::swapByteOrder(objc_category.class_name);
2994 sys::swapByteOrder(objc_category.instance_methods);
2995 sys::swapByteOrder(objc_category.class_methods);
2996 sys::swapByteOrder(objc_category.protocols);
2999 inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) {
3000 sys::swapByteOrder(objc_ivar_list.ivar_count);
3003 inline void swapStruct(struct objc_ivar_t &objc_ivar) {
3004 sys::swapByteOrder(objc_ivar.ivar_name);
3005 sys::swapByteOrder(objc_ivar.ivar_type);
3006 sys::swapByteOrder(objc_ivar.ivar_offset);
3009 inline void swapStruct(struct objc_method_list_t &method_list) {
3010 sys::swapByteOrder(method_list.obsolete);
3011 sys::swapByteOrder(method_list.method_count);
3014 inline void swapStruct(struct objc_method_t &method) {
3015 sys::swapByteOrder(method.method_name);
3016 sys::swapByteOrder(method.method_types);
3017 sys::swapByteOrder(method.method_imp);
3020 inline void swapStruct(struct objc_protocol_list_t &protocol_list) {
3021 sys::swapByteOrder(protocol_list.next);
3022 sys::swapByteOrder(protocol_list.count);
3025 inline void swapStruct(struct objc_protocol_t &protocol) {
3026 sys::swapByteOrder(protocol.isa);
3027 sys::swapByteOrder(protocol.protocol_name);
3028 sys::swapByteOrder(protocol.protocol_list);
3029 sys::swapByteOrder(protocol.instance_methods);
3030 sys::swapByteOrder(protocol.class_methods);
3033 inline void swapStruct(struct objc_method_description_list_t &mdl) {
3034 sys::swapByteOrder(mdl.count);
3037 inline void swapStruct(struct objc_method_description_t &md) {
3038 sys::swapByteOrder(md.name);
3039 sys::swapByteOrder(md.types);
3042 static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
3043 struct DisassembleInfo *info);
3045 // get_objc2_64bit_class_name() is used for disassembly and is passed a pointer
3046 // to an Objective-C class and returns the class name. It is also passed the
3047 // address of the pointer, so when the pointer is zero as it can be in an .o
3048 // file, that is used to look for an external relocation entry with a symbol
3050 static const char *get_objc2_64bit_class_name(uint64_t pointer_value,
3051 uint64_t ReferenceValue,
3052 struct DisassembleInfo *info) {
3054 uint32_t offset, left;
3057 // The pointer_value can be 0 in an object file and have a relocation
3058 // entry for the class symbol at the ReferenceValue (the address of the
3060 if (pointer_value == 0) {
3061 r = get_pointer_64(ReferenceValue, offset, left, S, info);
3062 if (r == nullptr || left < sizeof(uint64_t))
3065 const char *symbol_name = get_symbol_64(offset, S, info, n_value);
3066 if (symbol_name == nullptr)
3068 const char *class_name = strrchr(symbol_name, '$');
3069 if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0')
3070 return class_name + 2;
3075 // The case were the pointer_value is non-zero and points to a class defined
3076 // in this Mach-O file.
3077 r = get_pointer_64(pointer_value, offset, left, S, info);
3078 if (r == nullptr || left < sizeof(struct class64_t))
3081 memcpy(&c, r, sizeof(struct class64_t));
3082 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3086 r = get_pointer_64(c.data, offset, left, S, info);
3087 if (r == nullptr || left < sizeof(struct class_ro64_t))
3089 struct class_ro64_t cro;
3090 memcpy(&cro, r, sizeof(struct class_ro64_t));
3091 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3095 const char *name = get_pointer_64(cro.name, offset, left, S, info);
3099 // get_objc2_64bit_cfstring_name is used for disassembly and is passed a
3100 // pointer to a cfstring and returns its name or nullptr.
3101 static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue,
3102 struct DisassembleInfo *info) {
3103 const char *r, *name;
3104 uint32_t offset, left;
3106 struct cfstring64_t cfs;
3107 uint64_t cfs_characters;
3109 r = get_pointer_64(ReferenceValue, offset, left, S, info);
3110 if (r == nullptr || left < sizeof(struct cfstring64_t))
3112 memcpy(&cfs, r, sizeof(struct cfstring64_t));
3113 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3115 if (cfs.characters == 0) {
3117 const char *symbol_name = get_symbol_64(
3118 offset + offsetof(struct cfstring64_t, characters), S, info, n_value);
3119 if (symbol_name == nullptr)
3121 cfs_characters = n_value;
3123 cfs_characters = cfs.characters;
3124 name = get_pointer_64(cfs_characters, offset, left, S, info);
3129 // get_objc2_64bit_selref() is used for disassembly and is passed a the address
3130 // of a pointer to an Objective-C selector reference when the pointer value is
3131 // zero as in a .o file and is likely to have a external relocation entry with
3132 // who's symbol's n_value is the real pointer to the selector name. If that is
3133 // the case the real pointer to the selector name is returned else 0 is
3135 static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue,
3136 struct DisassembleInfo *info) {
3137 uint32_t offset, left;
3140 const char *r = get_pointer_64(ReferenceValue, offset, left, S, info);
3141 if (r == nullptr || left < sizeof(uint64_t))
3144 const char *symbol_name = get_symbol_64(offset, S, info, n_value);
3145 if (symbol_name == nullptr)
3150 static const SectionRef get_section(MachOObjectFile *O, const char *segname,
3151 const char *sectname) {
3152 for (const SectionRef &Section : O->sections()) {
3154 Section.getName(SectName);
3155 DataRefImpl Ref = Section.getRawDataRefImpl();
3156 StringRef SegName = O->getSectionFinalSegmentName(Ref);
3157 if (SegName == segname && SectName == sectname)
3160 return SectionRef();
3164 walk_pointer_list_64(const char *listname, const SectionRef S,
3165 MachOObjectFile *O, struct DisassembleInfo *info,
3166 void (*func)(uint64_t, struct DisassembleInfo *info)) {
3167 if (S == SectionRef())
3171 S.getName(SectName);
3172 DataRefImpl Ref = S.getRawDataRefImpl();
3173 StringRef SegName = O->getSectionFinalSegmentName(Ref);
3174 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
3177 S.getContents(BytesStr);
3178 const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
3180 for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) {
3181 uint32_t left = S.getSize() - i;
3182 uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t);
3184 memcpy(&p, Contents + i, size);
3185 if (i + sizeof(uint64_t) > S.getSize())
3186 outs() << listname << " list pointer extends past end of (" << SegName
3187 << "," << SectName << ") section\n";
3188 outs() << format("%016" PRIx64, S.getAddress() + i) << " ";
3190 if (O->isLittleEndian() != sys::IsLittleEndianHost)
3191 sys::swapByteOrder(p);
3193 uint64_t n_value = 0;
3194 const char *name = get_symbol_64(i, S, info, n_value, p);
3195 if (name == nullptr)
3196 name = get_dyld_bind_info_symbolname(S.getAddress() + i, info);
3199 outs() << format("0x%" PRIx64, n_value);
3201 outs() << " + " << format("0x%" PRIx64, p);
3203 outs() << format("0x%" PRIx64, p);
3204 if (name != nullptr)
3205 outs() << " " << name;
3215 walk_pointer_list_32(const char *listname, const SectionRef S,
3216 MachOObjectFile *O, struct DisassembleInfo *info,
3217 void (*func)(uint32_t, struct DisassembleInfo *info)) {
3218 if (S == SectionRef())
3222 S.getName(SectName);
3223 DataRefImpl Ref = S.getRawDataRefImpl();
3224 StringRef SegName = O->getSectionFinalSegmentName(Ref);
3225 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
3228 S.getContents(BytesStr);
3229 const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
3231 for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) {
3232 uint32_t left = S.getSize() - i;
3233 uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t);
3235 memcpy(&p, Contents + i, size);
3236 if (i + sizeof(uint32_t) > S.getSize())
3237 outs() << listname << " list pointer extends past end of (" << SegName
3238 << "," << SectName << ") section\n";
3239 uint32_t Address = S.getAddress() + i;
3240 outs() << format("%08" PRIx32, Address) << " ";
3242 if (O->isLittleEndian() != sys::IsLittleEndianHost)
3243 sys::swapByteOrder(p);
3244 outs() << format("0x%" PRIx32, p);
3246 const char *name = get_symbol_32(i, S, info, p);
3247 if (name != nullptr)
3248 outs() << " " << name;
3256 static void print_layout_map(const char *layout_map, uint32_t left) {
3257 if (layout_map == nullptr)
3259 outs() << " layout map: ";
3261 outs() << format("0x%02" PRIx32, (*layout_map) & 0xff) << " ";
3264 } while (*layout_map != '\0' && left != 0);
3268 static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) {
3269 uint32_t offset, left;
3271 const char *layout_map;
3275 layout_map = get_pointer_64(p, offset, left, S, info);
3276 print_layout_map(layout_map, left);
3279 static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) {
3280 uint32_t offset, left;
3282 const char *layout_map;
3286 layout_map = get_pointer_32(p, offset, left, S, info);
3287 print_layout_map(layout_map, left);
3290 static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info,
3291 const char *indent) {
3292 struct method_list64_t ml;
3293 struct method64_t m;
3295 uint32_t offset, xoffset, left, i;
3297 const char *name, *sym_name;
3300 r = get_pointer_64(p, offset, left, S, info);
3303 memset(&ml, '\0', sizeof(struct method_list64_t));
3304 if (left < sizeof(struct method_list64_t)) {
3305 memcpy(&ml, r, left);
3306 outs() << " (method_list_t entends past the end of the section)\n";
3308 memcpy(&ml, r, sizeof(struct method_list64_t));
3309 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3311 outs() << indent << "\t\t entsize " << ml.entsize << "\n";
3312 outs() << indent << "\t\t count " << ml.count << "\n";
3314 p += sizeof(struct method_list64_t);
3315 offset += sizeof(struct method_list64_t);
3316 for (i = 0; i < ml.count; i++) {
3317 r = get_pointer_64(p, offset, left, S, info);
3320 memset(&m, '\0', sizeof(struct method64_t));
3321 if (left < sizeof(struct method64_t)) {
3322 memcpy(&m, r, left);
3323 outs() << indent << " (method_t extends past the end of the section)\n";
3325 memcpy(&m, r, sizeof(struct method64_t));
3326 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3329 outs() << indent << "\t\t name ";
3330 sym_name = get_symbol_64(offset + offsetof(struct method64_t, name), S,
3331 info, n_value, m.name);
3333 if (info->verbose && sym_name != nullptr)
3336 outs() << format("0x%" PRIx64, n_value);
3338 outs() << " + " << format("0x%" PRIx64, m.name);
3340 outs() << format("0x%" PRIx64, m.name);
3341 name = get_pointer_64(m.name + n_value, xoffset, left, xS, info);
3342 if (name != nullptr)
3343 outs() << format(" %.*s", left, name);
3346 outs() << indent << "\t\t types ";
3347 sym_name = get_symbol_64(offset + offsetof(struct method64_t, types), S,
3348 info, n_value, m.types);
3350 if (info->verbose && sym_name != nullptr)
3353 outs() << format("0x%" PRIx64, n_value);
3355 outs() << " + " << format("0x%" PRIx64, m.types);
3357 outs() << format("0x%" PRIx64, m.types);
3358 name = get_pointer_64(m.types + n_value, xoffset, left, xS, info);
3359 if (name != nullptr)
3360 outs() << format(" %.*s", left, name);
3363 outs() << indent << "\t\t imp ";
3364 name = get_symbol_64(offset + offsetof(struct method64_t, imp), S, info,
3366 if (info->verbose && name == nullptr) {
3368 outs() << format("0x%" PRIx64, n_value) << " ";
3370 outs() << "+ " << format("0x%" PRIx64, m.imp) << " ";
3372 outs() << format("0x%" PRIx64, m.imp) << " ";
3374 if (name != nullptr)
3378 p += sizeof(struct method64_t);
3379 offset += sizeof(struct method64_t);
3383 static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info,
3384 const char *indent) {
3385 struct method_list32_t ml;
3386 struct method32_t m;
3387 const char *r, *name;
3388 uint32_t offset, xoffset, left, i;
3391 r = get_pointer_32(p, offset, left, S, info);
3394 memset(&ml, '\0', sizeof(struct method_list32_t));
3395 if (left < sizeof(struct method_list32_t)) {
3396 memcpy(&ml, r, left);
3397 outs() << " (method_list_t entends past the end of the section)\n";
3399 memcpy(&ml, r, sizeof(struct method_list32_t));
3400 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3402 outs() << indent << "\t\t entsize " << ml.entsize << "\n";
3403 outs() << indent << "\t\t count " << ml.count << "\n";
3405 p += sizeof(struct method_list32_t);
3406 offset += sizeof(struct method_list32_t);
3407 for (i = 0; i < ml.count; i++) {
3408 r = get_pointer_32(p, offset, left, S, info);
3411 memset(&m, '\0', sizeof(struct method32_t));
3412 if (left < sizeof(struct method32_t)) {
3413 memcpy(&ml, r, left);
3414 outs() << indent << " (method_t entends past the end of the section)\n";
3416 memcpy(&m, r, sizeof(struct method32_t));
3417 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3420 outs() << indent << "\t\t name " << format("0x%" PRIx32, m.name);
3421 name = get_pointer_32(m.name, xoffset, left, xS, info);
3422 if (name != nullptr)
3423 outs() << format(" %.*s", left, name);
3426 outs() << indent << "\t\t types " << format("0x%" PRIx32, m.types);
3427 name = get_pointer_32(m.types, xoffset, left, xS, info);
3428 if (name != nullptr)
3429 outs() << format(" %.*s", left, name);
3432 outs() << indent << "\t\t imp " << format("0x%" PRIx32, m.imp);
3433 name = get_symbol_32(offset + offsetof(struct method32_t, imp), S, info,
3435 if (name != nullptr)
3436 outs() << " " << name;
3439 p += sizeof(struct method32_t);
3440 offset += sizeof(struct method32_t);
3444 static bool print_method_list(uint32_t p, struct DisassembleInfo *info) {
3445 uint32_t offset, left, xleft;
3447 struct objc_method_list_t method_list;
3448 struct objc_method_t method;
3449 const char *r, *methods, *name, *SymbolName;
3452 r = get_pointer_32(p, offset, left, S, info, true);
3457 if (left > sizeof(struct objc_method_list_t)) {
3458 memcpy(&method_list, r, sizeof(struct objc_method_list_t));
3460 outs() << "\t\t objc_method_list extends past end of the section\n";
3461 memset(&method_list, '\0', sizeof(struct objc_method_list_t));
3462 memcpy(&method_list, r, left);
3464 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3465 swapStruct(method_list);
3467 outs() << "\t\t obsolete "
3468 << format("0x%08" PRIx32, method_list.obsolete) << "\n";
3469 outs() << "\t\t method_count " << method_list.method_count << "\n";
3471 methods = r + sizeof(struct objc_method_list_t);
3472 for (i = 0; i < method_list.method_count; i++) {
3473 if ((i + 1) * sizeof(struct objc_method_t) > left) {
3474 outs() << "\t\t remaining method's extend past the of the section\n";
3477 memcpy(&method, methods + i * sizeof(struct objc_method_t),
3478 sizeof(struct objc_method_t));
3479 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3482 outs() << "\t\t method_name "
3483 << format("0x%08" PRIx32, method.method_name);
3484 if (info->verbose) {
3485 name = get_pointer_32(method.method_name, offset, xleft, S, info, true);
3486 if (name != nullptr)
3487 outs() << format(" %.*s", xleft, name);
3489 outs() << " (not in an __OBJC section)";
3493 outs() << "\t\t method_types "
3494 << format("0x%08" PRIx32, method.method_types);
3495 if (info->verbose) {
3496 name = get_pointer_32(method.method_types, offset, xleft, S, info, true);
3497 if (name != nullptr)
3498 outs() << format(" %.*s", xleft, name);
3500 outs() << " (not in an __OBJC section)";
3504 outs() << "\t\t method_imp "
3505 << format("0x%08" PRIx32, method.method_imp) << " ";
3506 if (info->verbose) {
3507 SymbolName = GuessSymbolName(method.method_imp, info->AddrMap);
3508 if (SymbolName != nullptr)
3509 outs() << SymbolName;
3516 static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) {
3517 struct protocol_list64_t pl;
3518 uint64_t q, n_value;
3519 struct protocol64_t pc;
3521 uint32_t offset, xoffset, left, i;
3523 const char *name, *sym_name;
3525 r = get_pointer_64(p, offset, left, S, info);
3528 memset(&pl, '\0', sizeof(struct protocol_list64_t));
3529 if (left < sizeof(struct protocol_list64_t)) {
3530 memcpy(&pl, r, left);
3531 outs() << " (protocol_list_t entends past the end of the section)\n";
3533 memcpy(&pl, r, sizeof(struct protocol_list64_t));
3534 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3536 outs() << " count " << pl.count << "\n";
3538 p += sizeof(struct protocol_list64_t);
3539 offset += sizeof(struct protocol_list64_t);
3540 for (i = 0; i < pl.count; i++) {
3541 r = get_pointer_64(p, offset, left, S, info);
3545 if (left < sizeof(uint64_t)) {
3546 memcpy(&q, r, left);
3547 outs() << " (protocol_t * entends past the end of the section)\n";
3549 memcpy(&q, r, sizeof(uint64_t));
3550 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3551 sys::swapByteOrder(q);
3553 outs() << "\t\t list[" << i << "] ";
3554 sym_name = get_symbol_64(offset, S, info, n_value, q);
3556 if (info->verbose && sym_name != nullptr)
3559 outs() << format("0x%" PRIx64, n_value);
3561 outs() << " + " << format("0x%" PRIx64, q);
3563 outs() << format("0x%" PRIx64, q);
3564 outs() << " (struct protocol_t *)\n";
3566 r = get_pointer_64(q + n_value, offset, left, S, info);
3569 memset(&pc, '\0', sizeof(struct protocol64_t));
3570 if (left < sizeof(struct protocol64_t)) {
3571 memcpy(&pc, r, left);
3572 outs() << " (protocol_t entends past the end of the section)\n";
3574 memcpy(&pc, r, sizeof(struct protocol64_t));
3575 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3578 outs() << "\t\t\t isa " << format("0x%" PRIx64, pc.isa) << "\n";
3580 outs() << "\t\t\t name ";
3581 sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name), S,
3582 info, n_value, pc.name);
3584 if (info->verbose && sym_name != nullptr)
3587 outs() << format("0x%" PRIx64, n_value);
3589 outs() << " + " << format("0x%" PRIx64, pc.name);
3591 outs() << format("0x%" PRIx64, pc.name);
3592 name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info);
3593 if (name != nullptr)
3594 outs() << format(" %.*s", left, name);
3597 outs() << "\t\t\tprotocols " << format("0x%" PRIx64, pc.protocols) << "\n";
3599 outs() << "\t\t instanceMethods ";
3601 get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods),
3602 S, info, n_value, pc.instanceMethods);
3604 if (info->verbose && sym_name != nullptr)
3607 outs() << format("0x%" PRIx64, n_value);
3608 if (pc.instanceMethods != 0)
3609 outs() << " + " << format("0x%" PRIx64, pc.instanceMethods);
3611 outs() << format("0x%" PRIx64, pc.instanceMethods);
3612 outs() << " (struct method_list_t *)\n";
3613 if (pc.instanceMethods + n_value != 0)
3614 print_method_list64_t(pc.instanceMethods + n_value, info, "\t");
3616 outs() << "\t\t classMethods ";
3618 get_symbol_64(offset + offsetof(struct protocol64_t, classMethods), S,
3619 info, n_value, pc.classMethods);
3621 if (info->verbose && sym_name != nullptr)
3624 outs() << format("0x%" PRIx64, n_value);
3625 if (pc.classMethods != 0)
3626 outs() << " + " << format("0x%" PRIx64, pc.classMethods);
3628 outs() << format("0x%" PRIx64, pc.classMethods);
3629 outs() << " (struct method_list_t *)\n";
3630 if (pc.classMethods + n_value != 0)
3631 print_method_list64_t(pc.classMethods + n_value, info, "\t");
3633 outs() << "\t optionalInstanceMethods "
3634 << format("0x%" PRIx64, pc.optionalInstanceMethods) << "\n";
3635 outs() << "\t optionalClassMethods "
3636 << format("0x%" PRIx64, pc.optionalClassMethods) << "\n";
3637 outs() << "\t instanceProperties "
3638 << format("0x%" PRIx64, pc.instanceProperties) << "\n";
3640 p += sizeof(uint64_t);
3641 offset += sizeof(uint64_t);
3645 static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) {
3646 struct protocol_list32_t pl;
3648 struct protocol32_t pc;
3650 uint32_t offset, xoffset, left, i;
3654 r = get_pointer_32(p, offset, left, S, info);
3657 memset(&pl, '\0', sizeof(struct protocol_list32_t));
3658 if (left < sizeof(struct protocol_list32_t)) {
3659 memcpy(&pl, r, left);
3660 outs() << " (protocol_list_t entends past the end of the section)\n";
3662 memcpy(&pl, r, sizeof(struct protocol_list32_t));
3663 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3665 outs() << " count " << pl.count << "\n";
3667 p += sizeof(struct protocol_list32_t);
3668 offset += sizeof(struct protocol_list32_t);
3669 for (i = 0; i < pl.count; i++) {
3670 r = get_pointer_32(p, offset, left, S, info);
3674 if (left < sizeof(uint32_t)) {
3675 memcpy(&q, r, left);
3676 outs() << " (protocol_t * entends past the end of the section)\n";
3678 memcpy(&q, r, sizeof(uint32_t));
3679 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3680 sys::swapByteOrder(q);
3681 outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32, q)
3682 << " (struct protocol_t *)\n";
3683 r = get_pointer_32(q, offset, left, S, info);
3686 memset(&pc, '\0', sizeof(struct protocol32_t));
3687 if (left < sizeof(struct protocol32_t)) {
3688 memcpy(&pc, r, left);
3689 outs() << " (protocol_t entends past the end of the section)\n";
3691 memcpy(&pc, r, sizeof(struct protocol32_t));
3692 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3694 outs() << "\t\t\t isa " << format("0x%" PRIx32, pc.isa) << "\n";
3695 outs() << "\t\t\t name " << format("0x%" PRIx32, pc.name);
3696 name = get_pointer_32(pc.name, xoffset, left, xS, info);
3697 if (name != nullptr)
3698 outs() << format(" %.*s", left, name);
3700 outs() << "\t\t\tprotocols " << format("0x%" PRIx32, pc.protocols) << "\n";
3701 outs() << "\t\t instanceMethods "
3702 << format("0x%" PRIx32, pc.instanceMethods)
3703 << " (struct method_list_t *)\n";
3704 if (pc.instanceMethods != 0)
3705 print_method_list32_t(pc.instanceMethods, info, "\t");
3706 outs() << "\t\t classMethods " << format("0x%" PRIx32, pc.classMethods)
3707 << " (struct method_list_t *)\n";
3708 if (pc.classMethods != 0)
3709 print_method_list32_t(pc.classMethods, info, "\t");
3710 outs() << "\t optionalInstanceMethods "
3711 << format("0x%" PRIx32, pc.optionalInstanceMethods) << "\n";
3712 outs() << "\t optionalClassMethods "
3713 << format("0x%" PRIx32, pc.optionalClassMethods) << "\n";
3714 outs() << "\t instanceProperties "
3715 << format("0x%" PRIx32, pc.instanceProperties) << "\n";
3716 p += sizeof(uint32_t);
3717 offset += sizeof(uint32_t);
3721 static void print_indent(uint32_t indent) {
3722 for (uint32_t i = 0; i < indent;) {
3723 if (indent - i >= 8) {
3727 for (uint32_t j = i; j < indent; j++)
3734 static bool print_method_description_list(uint32_t p, uint32_t indent,
3735 struct DisassembleInfo *info) {
3736 uint32_t offset, left, xleft;
3738 struct objc_method_description_list_t mdl;
3739 struct objc_method_description_t md;
3740 const char *r, *list, *name;
3743 r = get_pointer_32(p, offset, left, S, info, true);
3748 if (left > sizeof(struct objc_method_description_list_t)) {
3749 memcpy(&mdl, r, sizeof(struct objc_method_description_list_t));
3751 print_indent(indent);
3752 outs() << " objc_method_description_list extends past end of the section\n";
3753 memset(&mdl, '\0', sizeof(struct objc_method_description_list_t));
3754 memcpy(&mdl, r, left);
3756 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3759 print_indent(indent);
3760 outs() << " count " << mdl.count << "\n";
3762 list = r + sizeof(struct objc_method_description_list_t);
3763 for (i = 0; i < mdl.count; i++) {
3764 if ((i + 1) * sizeof(struct objc_method_description_t) > left) {
3765 print_indent(indent);
3766 outs() << " remaining list entries extend past the of the section\n";
3769 print_indent(indent);
3770 outs() << " list[" << i << "]\n";
3771 memcpy(&md, list + i * sizeof(struct objc_method_description_t),
3772 sizeof(struct objc_method_description_t));
3773 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3776 print_indent(indent);
3777 outs() << " name " << format("0x%08" PRIx32, md.name);
3778 if (info->verbose) {
3779 name = get_pointer_32(md.name, offset, xleft, S, info, true);
3780 if (name != nullptr)
3781 outs() << format(" %.*s", xleft, name);
3783 outs() << " (not in an __OBJC section)";
3787 print_indent(indent);
3788 outs() << " types " << format("0x%08" PRIx32, md.types);
3789 if (info->verbose) {
3790 name = get_pointer_32(md.types, offset, xleft, S, info, true);
3791 if (name != nullptr)
3792 outs() << format(" %.*s", xleft, name);
3794 outs() << " (not in an __OBJC section)";
3801 static bool print_protocol_list(uint32_t p, uint32_t indent,
3802 struct DisassembleInfo *info);
3804 static bool print_protocol(uint32_t p, uint32_t indent,
3805 struct DisassembleInfo *info) {
3806 uint32_t offset, left;
3808 struct objc_protocol_t protocol;
3809 const char *r, *name;
3811 r = get_pointer_32(p, offset, left, S, info, true);
3816 if (left >= sizeof(struct objc_protocol_t)) {
3817 memcpy(&protocol, r, sizeof(struct objc_protocol_t));
3819 print_indent(indent);
3820 outs() << " Protocol extends past end of the section\n";
3821 memset(&protocol, '\0', sizeof(struct objc_protocol_t));
3822 memcpy(&protocol, r, left);
3824 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3825 swapStruct(protocol);
3827 print_indent(indent);
3828 outs() << " isa " << format("0x%08" PRIx32, protocol.isa)
3831 print_indent(indent);
3832 outs() << " protocol_name "
3833 << format("0x%08" PRIx32, protocol.protocol_name);
3834 if (info->verbose) {
3835 name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true);
3836 if (name != nullptr)
3837 outs() << format(" %.*s", left, name);
3839 outs() << " (not in an __OBJC section)";
3843 print_indent(indent);
3844 outs() << " protocol_list "
3845 << format("0x%08" PRIx32, protocol.protocol_list);
3846 if (print_protocol_list(protocol.protocol_list, indent + 4, info))
3847 outs() << " (not in an __OBJC section)\n";
3849 print_indent(indent);
3850 outs() << " instance_methods "
3851 << format("0x%08" PRIx32, protocol.instance_methods);
3852 if (print_method_description_list(protocol.instance_methods, indent, info))
3853 outs() << " (not in an __OBJC section)\n";
3855 print_indent(indent);
3856 outs() << " class_methods "
3857 << format("0x%08" PRIx32, protocol.class_methods);
3858 if (print_method_description_list(protocol.class_methods, indent, info))
3859 outs() << " (not in an __OBJC section)\n";
3864 static bool print_protocol_list(uint32_t p, uint32_t indent,
3865 struct DisassembleInfo *info) {
3866 uint32_t offset, left, l;
3868 struct objc_protocol_list_t protocol_list;
3869 const char *r, *list;
3872 r = get_pointer_32(p, offset, left, S, info, true);
3877 if (left > sizeof(struct objc_protocol_list_t)) {
3878 memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t));
3880 outs() << "\t\t objc_protocol_list_t extends past end of the section\n";
3881 memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t));
3882 memcpy(&protocol_list, r, left);
3884 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3885 swapStruct(protocol_list);
3887 print_indent(indent);
3888 outs() << " next " << format("0x%08" PRIx32, protocol_list.next)
3890 print_indent(indent);
3891 outs() << " count " << protocol_list.count << "\n";
3893 list = r + sizeof(struct objc_protocol_list_t);
3894 for (i = 0; i < protocol_list.count; i++) {
3895 if ((i + 1) * sizeof(uint32_t) > left) {
3896 outs() << "\t\t remaining list entries extend past the of the section\n";
3899 memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t));
3900 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3901 sys::swapByteOrder(l);
3903 print_indent(indent);
3904 outs() << " list[" << i << "] " << format("0x%08" PRIx32, l);
3905 if (print_protocol(l, indent, info))
3906 outs() << "(not in an __OBJC section)\n";
3911 static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) {
3912 struct ivar_list64_t il;
3915 uint32_t offset, xoffset, left, j;
3917 const char *name, *sym_name, *ivar_offset_p;
3918 uint64_t ivar_offset, n_value;
3920 r = get_pointer_64(p, offset, left, S, info);
3923 memset(&il, '\0', sizeof(struct ivar_list64_t));
3924 if (left < sizeof(struct ivar_list64_t)) {
3925 memcpy(&il, r, left);
3926 outs() << " (ivar_list_t entends past the end of the section)\n";
3928 memcpy(&il, r, sizeof(struct ivar_list64_t));
3929 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3931 outs() << " entsize " << il.entsize << "\n";
3932 outs() << " count " << il.count << "\n";
3934 p += sizeof(struct ivar_list64_t);
3935 offset += sizeof(struct ivar_list64_t);
3936 for (j = 0; j < il.count; j++) {
3937 r = get_pointer_64(p, offset, left, S, info);
3940 memset(&i, '\0', sizeof(struct ivar64_t));
3941 if (left < sizeof(struct ivar64_t)) {
3942 memcpy(&i, r, left);
3943 outs() << " (ivar_t entends past the end of the section)\n";
3945 memcpy(&i, r, sizeof(struct ivar64_t));
3946 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3949 outs() << "\t\t\t offset ";
3950 sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset), S,
3951 info, n_value, i.offset);
3953 if (info->verbose && sym_name != nullptr)
3956 outs() << format("0x%" PRIx64, n_value);
3958 outs() << " + " << format("0x%" PRIx64, i.offset);
3960 outs() << format("0x%" PRIx64, i.offset);
3961 ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info);
3962 if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) {
3963 memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset));
3964 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3965 sys::swapByteOrder(ivar_offset);
3966 outs() << " " << ivar_offset << "\n";
3970 outs() << "\t\t\t name ";
3971 sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name), S, info,
3974 if (info->verbose && sym_name != nullptr)
3977 outs() << format("0x%" PRIx64, n_value);
3979 outs() << " + " << format("0x%" PRIx64, i.name);
3981 outs() << format("0x%" PRIx64, i.name);
3982 name = get_pointer_64(i.name + n_value, xoffset, left, xS, info);
3983 if (name != nullptr)
3984 outs() << format(" %.*s", left, name);
3987 outs() << "\t\t\t type ";
3988 sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type), S, info,
3990 name = get_pointer_64(i.type + n_value, xoffset, left, xS, info);
3992 if (info->verbose && sym_name != nullptr)
3995 outs() << format("0x%" PRIx64, n_value);
3997 outs() << " + " << format("0x%" PRIx64, i.type);
3999 outs() << format("0x%" PRIx64, i.type);
4000 if (name != nullptr)
4001 outs() << format(" %.*s", left, name);
4004 outs() << "\t\t\talignment " << i.alignment << "\n";
4005 outs() << "\t\t\t size " << i.size << "\n";
4007 p += sizeof(struct ivar64_t);
4008 offset += sizeof(struct ivar64_t);
4012 static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) {
4013 struct ivar_list32_t il;
4016 uint32_t offset, xoffset, left, j;
4018 const char *name, *ivar_offset_p;
4019 uint32_t ivar_offset;
4021 r = get_pointer_32(p, offset, left, S, info);
4024 memset(&il, '\0', sizeof(struct ivar_list32_t));
4025 if (left < sizeof(struct ivar_list32_t)) {
4026 memcpy(&il, r, left);
4027 outs() << " (ivar_list_t entends past the end of the section)\n";
4029 memcpy(&il, r, sizeof(struct ivar_list32_t));
4030 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4032 outs() << " entsize " << il.entsize << "\n";
4033 outs() << " count " << il.count << "\n";
4035 p += sizeof(struct ivar_list32_t);
4036 offset += sizeof(struct ivar_list32_t);
4037 for (j = 0; j < il.count; j++) {
4038 r = get_pointer_32(p, offset, left, S, info);
4041 memset(&i, '\0', sizeof(struct ivar32_t));
4042 if (left < sizeof(struct ivar32_t)) {
4043 memcpy(&i, r, left);
4044 outs() << " (ivar_t entends past the end of the section)\n";
4046 memcpy(&i, r, sizeof(struct ivar32_t));
4047 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4050 outs() << "\t\t\t offset " << format("0x%" PRIx32, i.offset);
4051 ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info);
4052 if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) {
4053 memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset));
4054 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4055 sys::swapByteOrder(ivar_offset);
4056 outs() << " " << ivar_offset << "\n";
4060 outs() << "\t\t\t name " << format("0x%" PRIx32, i.name);
4061 name = get_pointer_32(i.name, xoffset, left, xS, info);
4062 if (name != nullptr)
4063 outs() << format(" %.*s", left, name);
4066 outs() << "\t\t\t type " << format("0x%" PRIx32, i.type);
4067 name = get_pointer_32(i.type, xoffset, left, xS, info);
4068 if (name != nullptr)
4069 outs() << format(" %.*s", left, name);
4072 outs() << "\t\t\talignment " << i.alignment << "\n";
4073 outs() << "\t\t\t size " << i.size << "\n";
4075 p += sizeof(struct ivar32_t);
4076 offset += sizeof(struct ivar32_t);
4080 static void print_objc_property_list64(uint64_t p,
4081 struct DisassembleInfo *info) {
4082 struct objc_property_list64 opl;
4083 struct objc_property64 op;
4085 uint32_t offset, xoffset, left, j;
4087 const char *name, *sym_name;
4090 r = get_pointer_64(p, offset, left, S, info);
4093 memset(&opl, '\0', sizeof(struct objc_property_list64));
4094 if (left < sizeof(struct objc_property_list64)) {
4095 memcpy(&opl, r, left);
4096 outs() << " (objc_property_list entends past the end of the section)\n";
4098 memcpy(&opl, r, sizeof(struct objc_property_list64));
4099 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4101 outs() << " entsize " << opl.entsize << "\n";
4102 outs() << " count " << opl.count << "\n";
4104 p += sizeof(struct objc_property_list64);
4105 offset += sizeof(struct objc_property_list64);
4106 for (j = 0; j < opl.count; j++) {
4107 r = get_pointer_64(p, offset, left, S, info);
4110 memset(&op, '\0', sizeof(struct objc_property64));
4111 if (left < sizeof(struct objc_property64)) {
4112 memcpy(&op, r, left);
4113 outs() << " (objc_property entends past the end of the section)\n";
4115 memcpy(&op, r, sizeof(struct objc_property64));
4116 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4119 outs() << "\t\t\t name ";
4120 sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name), S,
4121 info, n_value, op.name);
4123 if (info->verbose && sym_name != nullptr)
4126 outs() << format("0x%" PRIx64, n_value);
4128 outs() << " + " << format("0x%" PRIx64, op.name);
4130 outs() << format("0x%" PRIx64, op.name);
4131 name = get_pointer_64(op.name + n_value, xoffset, left, xS, info);
4132 if (name != nullptr)
4133 outs() << format(" %.*s", left, name);
4136 outs() << "\t\t\tattributes ";
4138 get_symbol_64(offset + offsetof(struct objc_property64, attributes), S,
4139 info, n_value, op.attributes);
4141 if (info->verbose && sym_name != nullptr)
4144 outs() << format("0x%" PRIx64, n_value);
4145 if (op.attributes != 0)
4146 outs() << " + " << format("0x%" PRIx64, op.attributes);
4148 outs() << format("0x%" PRIx64, op.attributes);
4149 name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info);
4150 if (name != nullptr)
4151 outs() << format(" %.*s", left, name);
4154 p += sizeof(struct objc_property64);
4155 offset += sizeof(struct objc_property64);
4159 static void print_objc_property_list32(uint32_t p,
4160 struct DisassembleInfo *info) {
4161 struct objc_property_list32 opl;
4162 struct objc_property32 op;
4164 uint32_t offset, xoffset, left, j;
4168 r = get_pointer_32(p, offset, left, S, info);
4171 memset(&opl, '\0', sizeof(struct objc_property_list32));
4172 if (left < sizeof(struct objc_property_list32)) {
4173 memcpy(&opl, r, left);
4174 outs() << " (objc_property_list entends past the end of the section)\n";
4176 memcpy(&opl, r, sizeof(struct objc_property_list32));
4177 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4179 outs() << " entsize " << opl.entsize << "\n";
4180 outs() << " count " << opl.count << "\n";
4182 p += sizeof(struct objc_property_list32);
4183 offset += sizeof(struct objc_property_list32);
4184 for (j = 0; j < opl.count; j++) {
4185 r = get_pointer_32(p, offset, left, S, info);
4188 memset(&op, '\0', sizeof(struct objc_property32));
4189 if (left < sizeof(struct objc_property32)) {
4190 memcpy(&op, r, left);
4191 outs() << " (objc_property entends past the end of the section)\n";
4193 memcpy(&op, r, sizeof(struct objc_property32));
4194 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4197 outs() << "\t\t\t name " << format("0x%" PRIx32, op.name);
4198 name = get_pointer_32(op.name, xoffset, left, xS, info);
4199 if (name != nullptr)
4200 outs() << format(" %.*s", left, name);
4203 outs() << "\t\t\tattributes " << format("0x%" PRIx32, op.attributes);
4204 name = get_pointer_32(op.attributes, xoffset, left, xS, info);
4205 if (name != nullptr)
4206 outs() << format(" %.*s", left, name);
4209 p += sizeof(struct objc_property32);
4210 offset += sizeof(struct objc_property32);
4214 static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info,
4215 bool &is_meta_class) {
4216 struct class_ro64_t cro;
4218 uint32_t offset, xoffset, left;
4220 const char *name, *sym_name;
4223 r = get_pointer_64(p, offset, left, S, info);
4224 if (r == nullptr || left < sizeof(struct class_ro64_t))
4226 memset(&cro, '\0', sizeof(struct class_ro64_t));
4227 if (left < sizeof(struct class_ro64_t)) {
4228 memcpy(&cro, r, left);
4229 outs() << " (class_ro_t entends past the end of the section)\n";
4231 memcpy(&cro, r, sizeof(struct class_ro64_t));
4232 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4234 outs() << " flags " << format("0x%" PRIx32, cro.flags);
4235 if (cro.flags & RO_META)
4236 outs() << " RO_META";
4237 if (cro.flags & RO_ROOT)
4238 outs() << " RO_ROOT";
4239 if (cro.flags & RO_HAS_CXX_STRUCTORS)
4240 outs() << " RO_HAS_CXX_STRUCTORS";
4242 outs() << " instanceStart " << cro.instanceStart << "\n";
4243 outs() << " instanceSize " << cro.instanceSize << "\n";
4244 outs() << " reserved " << format("0x%" PRIx32, cro.reserved)
4246 outs() << " ivarLayout " << format("0x%" PRIx64, cro.ivarLayout)
4248 print_layout_map64(cro.ivarLayout, info);
4251 sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name), S,
4252 info, n_value, cro.name);
4254 if (info->verbose && sym_name != nullptr)
4257 outs() << format("0x%" PRIx64, n_value);
4259 outs() << " + " << format("0x%" PRIx64, cro.name);
4261 outs() << format("0x%" PRIx64, cro.name);
4262 name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info);
4263 if (name != nullptr)
4264 outs() << format(" %.*s", left, name);
4267 outs() << " baseMethods ";
4268 sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods),
4269 S, info, n_value, cro.baseMethods);
4271 if (info->verbose && sym_name != nullptr)
4274 outs() << format("0x%" PRIx64, n_value);
4275 if (cro.baseMethods != 0)
4276 outs() << " + " << format("0x%" PRIx64, cro.baseMethods);
4278 outs() << format("0x%" PRIx64, cro.baseMethods);
4279 outs() << " (struct method_list_t *)\n";
4280 if (cro.baseMethods + n_value != 0)
4281 print_method_list64_t(cro.baseMethods + n_value, info, "");
4283 outs() << " baseProtocols ";
4285 get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols), S,
4286 info, n_value, cro.baseProtocols);
4288 if (info->verbose && sym_name != nullptr)
4291 outs() << format("0x%" PRIx64, n_value);
4292 if (cro.baseProtocols != 0)
4293 outs() << " + " << format("0x%" PRIx64, cro.baseProtocols);
4295 outs() << format("0x%" PRIx64, cro.baseProtocols);
4297 if (cro.baseProtocols + n_value != 0)
4298 print_protocol_list64_t(cro.baseProtocols + n_value, info);
4300 outs() << " ivars ";
4301 sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars), S,
4302 info, n_value, cro.ivars);
4304 if (info->verbose && sym_name != nullptr)
4307 outs() << format("0x%" PRIx64, n_value);
4309 outs() << " + " << format("0x%" PRIx64, cro.ivars);
4311 outs() << format("0x%" PRIx64, cro.ivars);
4313 if (cro.ivars + n_value != 0)
4314 print_ivar_list64_t(cro.ivars + n_value, info);
4316 outs() << " weakIvarLayout ";
4318 get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout), S,
4319 info, n_value, cro.weakIvarLayout);
4321 if (info->verbose && sym_name != nullptr)
4324 outs() << format("0x%" PRIx64, n_value);
4325 if (cro.weakIvarLayout != 0)
4326 outs() << " + " << format("0x%" PRIx64, cro.weakIvarLayout);
4328 outs() << format("0x%" PRIx64, cro.weakIvarLayout);
4330 print_layout_map64(cro.weakIvarLayout + n_value, info);
4332 outs() << " baseProperties ";
4334 get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties), S,
4335 info, n_value, cro.baseProperties);
4337 if (info->verbose && sym_name != nullptr)
4340 outs() << format("0x%" PRIx64, n_value);
4341 if (cro.baseProperties != 0)
4342 outs() << " + " << format("0x%" PRIx64, cro.baseProperties);
4344 outs() << format("0x%" PRIx64, cro.baseProperties);
4346 if (cro.baseProperties + n_value != 0)
4347 print_objc_property_list64(cro.baseProperties + n_value, info);
4349 is_meta_class = (cro.flags & RO_META) != 0;
4353 static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info,
4354 bool &is_meta_class) {
4355 struct class_ro32_t cro;
4357 uint32_t offset, xoffset, left;
4361 r = get_pointer_32(p, offset, left, S, info);
4364 memset(&cro, '\0', sizeof(struct class_ro32_t));
4365 if (left < sizeof(struct class_ro32_t)) {
4366 memcpy(&cro, r, left);
4367 outs() << " (class_ro_t entends past the end of the section)\n";
4369 memcpy(&cro, r, sizeof(struct class_ro32_t));
4370 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4372 outs() << " flags " << format("0x%" PRIx32, cro.flags);
4373 if (cro.flags & RO_META)
4374 outs() << " RO_META";
4375 if (cro.flags & RO_ROOT)
4376 outs() << " RO_ROOT";
4377 if (cro.flags & RO_HAS_CXX_STRUCTORS)
4378 outs() << " RO_HAS_CXX_STRUCTORS";
4380 outs() << " instanceStart " << cro.instanceStart << "\n";
4381 outs() << " instanceSize " << cro.instanceSize << "\n";
4382 outs() << " ivarLayout " << format("0x%" PRIx32, cro.ivarLayout)
4384 print_layout_map32(cro.ivarLayout, info);
4386 outs() << " name " << format("0x%" PRIx32, cro.name);
4387 name = get_pointer_32(cro.name, xoffset, left, xS, info);
4388 if (name != nullptr)
4389 outs() << format(" %.*s", left, name);
4392 outs() << " baseMethods "
4393 << format("0x%" PRIx32, cro.baseMethods)
4394 << " (struct method_list_t *)\n";
4395 if (cro.baseMethods != 0)
4396 print_method_list32_t(cro.baseMethods, info, "");
4398 outs() << " baseProtocols "
4399 << format("0x%" PRIx32, cro.baseProtocols) << "\n";
4400 if (cro.baseProtocols != 0)
4401 print_protocol_list32_t(cro.baseProtocols, info);
4402 outs() << " ivars " << format("0x%" PRIx32, cro.ivars)
4405 print_ivar_list32_t(cro.ivars, info);
4406 outs() << " weakIvarLayout "
4407 << format("0x%" PRIx32, cro.weakIvarLayout) << "\n";
4408 print_layout_map32(cro.weakIvarLayout, info);
4409 outs() << " baseProperties "
4410 << format("0x%" PRIx32, cro.baseProperties) << "\n";
4411 if (cro.baseProperties != 0)
4412 print_objc_property_list32(cro.baseProperties, info);
4413 is_meta_class = (cro.flags & RO_META) != 0;
4417 static void print_class64_t(uint64_t p, struct DisassembleInfo *info) {
4420 uint32_t offset, left;
4423 uint64_t isa_n_value, n_value;
4425 r = get_pointer_64(p, offset, left, S, info);
4426 if (r == nullptr || left < sizeof(struct class64_t))
4428 memset(&c, '\0', sizeof(struct class64_t));
4429 if (left < sizeof(struct class64_t)) {
4430 memcpy(&c, r, left);
4431 outs() << " (class_t entends past the end of the section)\n";
4433 memcpy(&c, r, sizeof(struct class64_t));
4434 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4437 outs() << " isa " << format("0x%" PRIx64, c.isa);
4438 name = get_symbol_64(offset + offsetof(struct class64_t, isa), S, info,
4439 isa_n_value, c.isa);
4440 if (name != nullptr)
4441 outs() << " " << name;
4444 outs() << " superclass " << format("0x%" PRIx64, c.superclass);
4445 name = get_symbol_64(offset + offsetof(struct class64_t, superclass), S, info,
4446 n_value, c.superclass);
4447 if (name != nullptr)
4448 outs() << " " << name;
4451 outs() << " cache " << format("0x%" PRIx64, c.cache);
4452 name = get_symbol_64(offset + offsetof(struct class64_t, cache), S, info,
4454 if (name != nullptr)
4455 outs() << " " << name;
4458 outs() << " vtable " << format("0x%" PRIx64, c.vtable);
4459 name = get_symbol_64(offset + offsetof(struct class64_t, vtable), S, info,
4461 if (name != nullptr)
4462 outs() << " " << name;
4465 name = get_symbol_64(offset + offsetof(struct class64_t, data), S, info,
4469 if (info->verbose && name != nullptr)
4472 outs() << format("0x%" PRIx64, n_value);
4474 outs() << " + " << format("0x%" PRIx64, c.data);
4476 outs() << format("0x%" PRIx64, c.data);
4477 outs() << " (struct class_ro_t *)";
4479 // This is a Swift class if some of the low bits of the pointer are set.
4480 if ((c.data + n_value) & 0x7)
4481 outs() << " Swift class";
4484 if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class))
4487 if (!is_meta_class &&
4488 c.isa + isa_n_value != p &&
4489 c.isa + isa_n_value != 0 &&
4490 info->depth < 100) {
4492 outs() << "Meta Class\n";
4493 print_class64_t(c.isa + isa_n_value, info);
4497 static void print_class32_t(uint32_t p, struct DisassembleInfo *info) {
4500 uint32_t offset, left;
4504 r = get_pointer_32(p, offset, left, S, info);
4507 memset(&c, '\0', sizeof(struct class32_t));
4508 if (left < sizeof(struct class32_t)) {
4509 memcpy(&c, r, left);
4510 outs() << " (class_t entends past the end of the section)\n";
4512 memcpy(&c, r, sizeof(struct class32_t));
4513 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4516 outs() << " isa " << format("0x%" PRIx32, c.isa);
4518 get_symbol_32(offset + offsetof(struct class32_t, isa), S, info, c.isa);
4519 if (name != nullptr)
4520 outs() << " " << name;
4523 outs() << " superclass " << format("0x%" PRIx32, c.superclass);
4524 name = get_symbol_32(offset + offsetof(struct class32_t, superclass), S, info,
4526 if (name != nullptr)
4527 outs() << " " << name;
4530 outs() << " cache " << format("0x%" PRIx32, c.cache);
4531 name = get_symbol_32(offset + offsetof(struct class32_t, cache), S, info,
4533 if (name != nullptr)
4534 outs() << " " << name;
4537 outs() << " vtable " << format("0x%" PRIx32, c.vtable);
4538 name = get_symbol_32(offset + offsetof(struct class32_t, vtable), S, info,
4540 if (name != nullptr)
4541 outs() << " " << name;
4545 get_symbol_32(offset + offsetof(struct class32_t, data), S, info, c.data);
4546 outs() << " data " << format("0x%" PRIx32, c.data)
4547 << " (struct class_ro_t *)";
4549 // This is a Swift class if some of the low bits of the pointer are set.
4551 outs() << " Swift class";
4554 if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class))
4557 if (!is_meta_class) {
4558 outs() << "Meta Class\n";
4559 print_class32_t(c.isa, info);
4563 static void print_objc_class_t(struct objc_class_t *objc_class,
4564 struct DisassembleInfo *info) {
4565 uint32_t offset, left, xleft;
4566 const char *name, *p, *ivar_list;
4569 struct objc_ivar_list_t objc_ivar_list;
4570 struct objc_ivar_t ivar;
4572 outs() << "\t\t isa " << format("0x%08" PRIx32, objc_class->isa);
4573 if (info->verbose && CLS_GETINFO(objc_class, CLS_META)) {
4574 name = get_pointer_32(objc_class->isa, offset, left, S, info, true);
4575 if (name != nullptr)
4576 outs() << format(" %.*s", left, name);
4578 outs() << " (not in an __OBJC section)";
4582 outs() << "\t super_class "
4583 << format("0x%08" PRIx32, objc_class->super_class);
4584 if (info->verbose) {
4585 name = get_pointer_32(objc_class->super_class, offset, left, S, info, true);
4586 if (name != nullptr)
4587 outs() << format(" %.*s", left, name);
4589 outs() << " (not in an __OBJC section)";
4593 outs() << "\t\t name " << format("0x%08" PRIx32, objc_class->name);
4594 if (info->verbose) {
4595 name = get_pointer_32(objc_class->name, offset, left, S, info, true);
4596 if (name != nullptr)
4597 outs() << format(" %.*s", left, name);
4599 outs() << " (not in an __OBJC section)";
4603 outs() << "\t\t version " << format("0x%08" PRIx32, objc_class->version)
4606 outs() << "\t\t info " << format("0x%08" PRIx32, objc_class->info);
4607 if (info->verbose) {
4608 if (CLS_GETINFO(objc_class, CLS_CLASS))
4609 outs() << " CLS_CLASS";
4610 else if (CLS_GETINFO(objc_class, CLS_META))
4611 outs() << " CLS_META";
4615 outs() << "\t instance_size "
4616 << format("0x%08" PRIx32, objc_class->instance_size) << "\n";
4618 p = get_pointer_32(objc_class->ivars, offset, left, S, info, true);
4619 outs() << "\t\t ivars " << format("0x%08" PRIx32, objc_class->ivars);
4621 if (left > sizeof(struct objc_ivar_list_t)) {
4623 memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t));
4625 outs() << " (entends past the end of the section)\n";
4626 memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t));
4627 memcpy(&objc_ivar_list, p, left);
4629 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4630 swapStruct(objc_ivar_list);
4631 outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n";
4632 ivar_list = p + sizeof(struct objc_ivar_list_t);
4633 for (i = 0; i < objc_ivar_list.ivar_count; i++) {
4634 if ((i + 1) * sizeof(struct objc_ivar_t) > left) {
4635 outs() << "\t\t remaining ivar's extend past the of the section\n";
4638 memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t),
4639 sizeof(struct objc_ivar_t));
4640 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4643 outs() << "\t\t\tivar_name " << format("0x%08" PRIx32, ivar.ivar_name);
4644 if (info->verbose) {
4645 name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true);
4646 if (name != nullptr)
4647 outs() << format(" %.*s", xleft, name);
4649 outs() << " (not in an __OBJC section)";
4653 outs() << "\t\t\tivar_type " << format("0x%08" PRIx32, ivar.ivar_type);
4654 if (info->verbose) {
4655 name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true);
4656 if (name != nullptr)
4657 outs() << format(" %.*s", xleft, name);
4659 outs() << " (not in an __OBJC section)";
4663 outs() << "\t\t ivar_offset "
4664 << format("0x%08" PRIx32, ivar.ivar_offset) << "\n";
4667 outs() << " (not in an __OBJC section)\n";
4670 outs() << "\t\t methods " << format("0x%08" PRIx32, objc_class->methodLists);
4671 if (print_method_list(objc_class->methodLists, info))
4672 outs() << " (not in an __OBJC section)\n";
4674 outs() << "\t\t cache " << format("0x%08" PRIx32, objc_class->cache)
4677 outs() << "\t\tprotocols " << format("0x%08" PRIx32, objc_class->protocols);
4678 if (print_protocol_list(objc_class->protocols, 16, info))
4679 outs() << " (not in an __OBJC section)\n";
4682 static void print_objc_objc_category_t(struct objc_category_t *objc_category,
4683 struct DisassembleInfo *info) {
4684 uint32_t offset, left;
4688 outs() << "\t category name "
4689 << format("0x%08" PRIx32, objc_category->category_name);
4690 if (info->verbose) {
4691 name = get_pointer_32(objc_category->category_name, offset, left, S, info,
4693 if (name != nullptr)
4694 outs() << format(" %.*s", left, name);
4696 outs() << " (not in an __OBJC section)";
4700 outs() << "\t\t class name "
4701 << format("0x%08" PRIx32, objc_category->class_name);
4702 if (info->verbose) {
4704 get_pointer_32(objc_category->class_name, offset, left, S, info, true);
4705 if (name != nullptr)
4706 outs() << format(" %.*s", left, name);
4708 outs() << " (not in an __OBJC section)";
4712 outs() << "\t instance methods "
4713 << format("0x%08" PRIx32, objc_category->instance_methods);
4714 if (print_method_list(objc_category->instance_methods, info))
4715 outs() << " (not in an __OBJC section)\n";
4717 outs() << "\t class methods "
4718 << format("0x%08" PRIx32, objc_category->class_methods);
4719 if (print_method_list(objc_category->class_methods, info))
4720 outs() << " (not in an __OBJC section)\n";
4723 static void print_category64_t(uint64_t p, struct DisassembleInfo *info) {
4724 struct category64_t c;
4726 uint32_t offset, xoffset, left;
4728 const char *name, *sym_name;
4731 r = get_pointer_64(p, offset, left, S, info);
4734 memset(&c, '\0', sizeof(struct category64_t));
4735 if (left < sizeof(struct category64_t)) {
4736 memcpy(&c, r, left);
4737 outs() << " (category_t entends past the end of the section)\n";
4739 memcpy(&c, r, sizeof(struct category64_t));
4740 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4744 sym_name = get_symbol_64(offset + offsetof(struct category64_t, name), S,
4745 info, n_value, c.name);
4747 if (info->verbose && sym_name != nullptr)
4750 outs() << format("0x%" PRIx64, n_value);
4752 outs() << " + " << format("0x%" PRIx64, c.name);
4754 outs() << format("0x%" PRIx64, c.name);
4755 name = get_pointer_64(c.name + n_value, xoffset, left, xS, info);
4756 if (name != nullptr)
4757 outs() << format(" %.*s", left, name);
4761 sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls), S, info,
4764 if (info->verbose && sym_name != nullptr)
4767 outs() << format("0x%" PRIx64, n_value);
4769 outs() << " + " << format("0x%" PRIx64, c.cls);
4771 outs() << format("0x%" PRIx64, c.cls);
4773 if (c.cls + n_value != 0)
4774 print_class64_t(c.cls + n_value, info);
4776 outs() << " instanceMethods ";
4778 get_symbol_64(offset + offsetof(struct category64_t, instanceMethods), S,
4779 info, n_value, c.instanceMethods);
4781 if (info->verbose && sym_name != nullptr)
4784 outs() << format("0x%" PRIx64, n_value);
4785 if (c.instanceMethods != 0)
4786 outs() << " + " << format("0x%" PRIx64, c.instanceMethods);
4788 outs() << format("0x%" PRIx64, c.instanceMethods);
4790 if (c.instanceMethods + n_value != 0)
4791 print_method_list64_t(c.instanceMethods + n_value, info, "");
4793 outs() << " classMethods ";
4794 sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods),
4795 S, info, n_value, c.classMethods);
4797 if (info->verbose && sym_name != nullptr)
4800 outs() << format("0x%" PRIx64, n_value);
4801 if (c.classMethods != 0)
4802 outs() << " + " << format("0x%" PRIx64, c.classMethods);
4804 outs() << format("0x%" PRIx64, c.classMethods);
4806 if (c.classMethods + n_value != 0)
4807 print_method_list64_t(c.classMethods + n_value, info, "");
4809 outs() << " protocols ";
4810 sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols), S,
4811 info, n_value, c.protocols);
4813 if (info->verbose && sym_name != nullptr)
4816 outs() << format("0x%" PRIx64, n_value);
4817 if (c.protocols != 0)
4818 outs() << " + " << format("0x%" PRIx64, c.protocols);
4820 outs() << format("0x%" PRIx64, c.protocols);
4822 if (c.protocols + n_value != 0)
4823 print_protocol_list64_t(c.protocols + n_value, info);
4825 outs() << "instanceProperties ";
4827 get_symbol_64(offset + offsetof(struct category64_t, instanceProperties),
4828 S, info, n_value, c.instanceProperties);
4830 if (info->verbose && sym_name != nullptr)
4833 outs() << format("0x%" PRIx64, n_value);
4834 if (c.instanceProperties != 0)
4835 outs() << " + " << format("0x%" PRIx64, c.instanceProperties);
4837 outs() << format("0x%" PRIx64, c.instanceProperties);
4839 if (c.instanceProperties + n_value != 0)
4840 print_objc_property_list64(c.instanceProperties + n_value, info);
4843 static void print_category32_t(uint32_t p, struct DisassembleInfo *info) {
4844 struct category32_t c;
4846 uint32_t offset, left;
4850 r = get_pointer_32(p, offset, left, S, info);
4853 memset(&c, '\0', sizeof(struct category32_t));
4854 if (left < sizeof(struct category32_t)) {
4855 memcpy(&c, r, left);
4856 outs() << " (category_t entends past the end of the section)\n";
4858 memcpy(&c, r, sizeof(struct category32_t));
4859 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4862 outs() << " name " << format("0x%" PRIx32, c.name);
4863 name = get_symbol_32(offset + offsetof(struct category32_t, name), S, info,
4866 outs() << " " << name;
4869 outs() << " cls " << format("0x%" PRIx32, c.cls) << "\n";
4871 print_class32_t(c.cls, info);
4872 outs() << " instanceMethods " << format("0x%" PRIx32, c.instanceMethods)
4874 if (c.instanceMethods != 0)
4875 print_method_list32_t(c.instanceMethods, info, "");
4876 outs() << " classMethods " << format("0x%" PRIx32, c.classMethods)
4878 if (c.classMethods != 0)
4879 print_method_list32_t(c.classMethods, info, "");
4880 outs() << " protocols " << format("0x%" PRIx32, c.protocols) << "\n";
4881 if (c.protocols != 0)
4882 print_protocol_list32_t(c.protocols, info);
4883 outs() << "instanceProperties " << format("0x%" PRIx32, c.instanceProperties)
4885 if (c.instanceProperties != 0)
4886 print_objc_property_list32(c.instanceProperties, info);
4889 static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) {
4890 uint32_t i, left, offset, xoffset;
4891 uint64_t p, n_value;
4892 struct message_ref64 mr;
4893 const char *name, *sym_name;
4897 if (S == SectionRef())
4901 S.getName(SectName);
4902 DataRefImpl Ref = S.getRawDataRefImpl();
4903 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
4904 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
4906 for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) {
4907 p = S.getAddress() + i;
4908 r = get_pointer_64(p, offset, left, S, info);
4911 memset(&mr, '\0', sizeof(struct message_ref64));
4912 if (left < sizeof(struct message_ref64)) {
4913 memcpy(&mr, r, left);
4914 outs() << " (message_ref entends past the end of the section)\n";
4916 memcpy(&mr, r, sizeof(struct message_ref64));
4917 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4921 name = get_symbol_64(offset + offsetof(struct message_ref64, imp), S, info,
4924 outs() << format("0x%" PRIx64, n_value) << " ";
4926 outs() << "+ " << format("0x%" PRIx64, mr.imp) << " ";
4928 outs() << format("0x%" PRIx64, mr.imp) << " ";
4929 if (name != nullptr)
4930 outs() << " " << name;
4934 sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel), S,
4935 info, n_value, mr.sel);
4937 if (info->verbose && sym_name != nullptr)
4940 outs() << format("0x%" PRIx64, n_value);
4942 outs() << " + " << format("0x%" PRIx64, mr.sel);
4944 outs() << format("0x%" PRIx64, mr.sel);
4945 name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info);
4946 if (name != nullptr)
4947 outs() << format(" %.*s", left, name);
4950 offset += sizeof(struct message_ref64);
4954 static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) {
4955 uint32_t i, left, offset, xoffset, p;
4956 struct message_ref32 mr;
4957 const char *name, *r;
4960 if (S == SectionRef())
4964 S.getName(SectName);
4965 DataRefImpl Ref = S.getRawDataRefImpl();
4966 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
4967 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
4969 for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) {
4970 p = S.getAddress() + i;
4971 r = get_pointer_32(p, offset, left, S, info);
4974 memset(&mr, '\0', sizeof(struct message_ref32));
4975 if (left < sizeof(struct message_ref32)) {
4976 memcpy(&mr, r, left);
4977 outs() << " (message_ref entends past the end of the section)\n";
4979 memcpy(&mr, r, sizeof(struct message_ref32));
4980 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4983 outs() << " imp " << format("0x%" PRIx32, mr.imp);
4984 name = get_symbol_32(offset + offsetof(struct message_ref32, imp), S, info,
4986 if (name != nullptr)
4987 outs() << " " << name;
4990 outs() << " sel " << format("0x%" PRIx32, mr.sel);
4991 name = get_pointer_32(mr.sel, xoffset, left, xS, info);
4992 if (name != nullptr)
4993 outs() << " " << name;
4996 offset += sizeof(struct message_ref32);
5000 static void print_image_info64(SectionRef S, struct DisassembleInfo *info) {
5001 uint32_t left, offset, swift_version;
5003 struct objc_image_info64 o;
5006 if (S == SectionRef())
5010 S.getName(SectName);
5011 DataRefImpl Ref = S.getRawDataRefImpl();
5012 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
5013 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
5015 r = get_pointer_64(p, offset, left, S, info);
5018 memset(&o, '\0', sizeof(struct objc_image_info64));
5019 if (left < sizeof(struct objc_image_info64)) {
5020 memcpy(&o, r, left);
5021 outs() << " (objc_image_info entends past the end of the section)\n";
5023 memcpy(&o, r, sizeof(struct objc_image_info64));
5024 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
5026 outs() << " version " << o.version << "\n";
5027 outs() << " flags " << format("0x%" PRIx32, o.flags);
5028 if (o.flags & OBJC_IMAGE_IS_REPLACEMENT)
5029 outs() << " OBJC_IMAGE_IS_REPLACEMENT";
5030 if (o.flags & OBJC_IMAGE_SUPPORTS_GC)
5031 outs() << " OBJC_IMAGE_SUPPORTS_GC";
5032 swift_version = (o.flags >> 8) & 0xff;
5033 if (swift_version != 0) {
5034 if (swift_version == 1)
5035 outs() << " Swift 1.0";
5036 else if (swift_version == 2)
5037 outs() << " Swift 1.1";
5039 outs() << " unknown future Swift version (" << swift_version << ")";
5044 static void print_image_info32(SectionRef S, struct DisassembleInfo *info) {
5045 uint32_t left, offset, swift_version, p;
5046 struct objc_image_info32 o;
5050 S.getName(SectName);
5051 DataRefImpl Ref = S.getRawDataRefImpl();
5052 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
5053 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
5055 r = get_pointer_32(p, offset, left, S, info);
5058 memset(&o, '\0', sizeof(struct objc_image_info32));
5059 if (left < sizeof(struct objc_image_info32)) {
5060 memcpy(&o, r, left);
5061 outs() << " (objc_image_info entends past the end of the section)\n";
5063 memcpy(&o, r, sizeof(struct objc_image_info32));
5064 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
5066 outs() << " version " << o.version << "\n";
5067 outs() << " flags " << format("0x%" PRIx32, o.flags);
5068 if (o.flags & OBJC_IMAGE_IS_REPLACEMENT)
5069 outs() << " OBJC_IMAGE_IS_REPLACEMENT";
5070 if (o.flags & OBJC_IMAGE_SUPPORTS_GC)
5071 outs() << " OBJC_IMAGE_SUPPORTS_GC";
5072 swift_version = (o.flags >> 8) & 0xff;
5073 if (swift_version != 0) {
5074 if (swift_version == 1)
5075 outs() << " Swift 1.0";
5076 else if (swift_version == 2)
5077 outs() << " Swift 1.1";
5079 outs() << " unknown future Swift version (" << swift_version << ")";
5084 static void print_image_info(SectionRef S, struct DisassembleInfo *info) {
5085 uint32_t left, offset, p;
5086 struct imageInfo_t o;
5090 S.getName(SectName);
5091 DataRefImpl Ref = S.getRawDataRefImpl();
5092 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
5093 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
5095 r = get_pointer_32(p, offset, left, S, info);
5098 memset(&o, '\0', sizeof(struct imageInfo_t));
5099 if (left < sizeof(struct imageInfo_t)) {
5100 memcpy(&o, r, left);
5101 outs() << " (imageInfo entends past the end of the section)\n";
5103 memcpy(&o, r, sizeof(struct imageInfo_t));
5104 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
5106 outs() << " version " << o.version << "\n";
5107 outs() << " flags " << format("0x%" PRIx32, o.flags);
5113 outs() << " GC-only";
5119 static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) {
5120 SymbolAddressMap AddrMap;
5122 CreateSymbolAddressMap(O, &AddrMap);
5124 std::vector<SectionRef> Sections;
5125 for (const SectionRef &Section : O->sections()) {
5127 Section.getName(SectName);
5128 Sections.push_back(Section);
5131 struct DisassembleInfo info;
5132 // Set up the block of info used by the Symbolizer call backs.
5133 info.verbose = verbose;
5135 info.AddrMap = &AddrMap;
5136 info.Sections = &Sections;
5137 info.class_name = nullptr;
5138 info.selector_name = nullptr;
5139 info.method = nullptr;
5140 info.demangled_name = nullptr;
5141 info.bindtable = nullptr;
5146 const SectionRef CL = get_section(O, "__OBJC2", "__class_list");
5147 if (CL != SectionRef()) {
5149 walk_pointer_list_64("class", CL, O, &info, print_class64_t);
5151 const SectionRef CL = get_section(O, "__DATA", "__objc_classlist");
5153 walk_pointer_list_64("class", CL, O, &info, print_class64_t);
5156 const SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
5157 if (CR != SectionRef()) {
5159 walk_pointer_list_64("class refs", CR, O, &info, nullptr);
5161 const SectionRef CR = get_section(O, "__DATA", "__objc_classrefs");
5163 walk_pointer_list_64("class refs", CR, O, &info, nullptr);
5166 const SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
5167 if (SR != SectionRef()) {
5169 walk_pointer_list_64("super refs", SR, O, &info, nullptr);
5171 const SectionRef SR = get_section(O, "__DATA", "__objc_superrefs");
5173 walk_pointer_list_64("super refs", SR, O, &info, nullptr);
5176 const SectionRef CA = get_section(O, "__OBJC2", "__category_list");
5177 if (CA != SectionRef()) {
5179 walk_pointer_list_64("category", CA, O, &info, print_category64_t);
5181 const SectionRef CA = get_section(O, "__DATA", "__objc_catlist");
5183 walk_pointer_list_64("category", CA, O, &info, print_category64_t);
5186 const SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
5187 if (PL != SectionRef()) {
5189 walk_pointer_list_64("protocol", PL, O, &info, nullptr);
5191 const SectionRef PL = get_section(O, "__DATA", "__objc_protolist");
5193 walk_pointer_list_64("protocol", PL, O, &info, nullptr);
5196 const SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
5197 if (MR != SectionRef()) {
5199 print_message_refs64(MR, &info);
5201 const SectionRef MR = get_section(O, "__DATA", "__objc_msgrefs");
5203 print_message_refs64(MR, &info);
5206 const SectionRef II = get_section(O, "__OBJC2", "__image_info");
5207 if (II != SectionRef()) {
5209 print_image_info64(II, &info);
5211 const SectionRef II = get_section(O, "__DATA", "__objc_imageinfo");
5213 print_image_info64(II, &info);
5216 if (info.bindtable != nullptr)
5217 delete info.bindtable;
5220 static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) {
5221 SymbolAddressMap AddrMap;
5223 CreateSymbolAddressMap(O, &AddrMap);
5225 std::vector<SectionRef> Sections;
5226 for (const SectionRef &Section : O->sections()) {
5228 Section.getName(SectName);
5229 Sections.push_back(Section);
5232 struct DisassembleInfo info;
5233 // Set up the block of info used by the Symbolizer call backs.
5234 info.verbose = verbose;
5236 info.AddrMap = &AddrMap;
5237 info.Sections = &Sections;
5238 info.class_name = nullptr;
5239 info.selector_name = nullptr;
5240 info.method = nullptr;
5241 info.demangled_name = nullptr;
5242 info.bindtable = nullptr;
5246 const SectionRef CL = get_section(O, "__OBJC2", "__class_list");
5247 if (CL != SectionRef()) {
5249 walk_pointer_list_32("class", CL, O, &info, print_class32_t);
5251 const SectionRef CL = get_section(O, "__DATA", "__objc_classlist");
5253 walk_pointer_list_32("class", CL, O, &info, print_class32_t);
5256 const SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
5257 if (CR != SectionRef()) {
5259 walk_pointer_list_32("class refs", CR, O, &info, nullptr);
5261 const SectionRef CR = get_section(O, "__DATA", "__objc_classrefs");
5263 walk_pointer_list_32("class refs", CR, O, &info, nullptr);
5266 const SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
5267 if (SR != SectionRef()) {
5269 walk_pointer_list_32("super refs", SR, O, &info, nullptr);
5271 const SectionRef SR = get_section(O, "__DATA", "__objc_superrefs");
5273 walk_pointer_list_32("super refs", SR, O, &info, nullptr);
5276 const SectionRef CA = get_section(O, "__OBJC2", "__category_list");
5277 if (CA != SectionRef()) {
5279 walk_pointer_list_32("category", CA, O, &info, print_category32_t);
5281 const SectionRef CA = get_section(O, "__DATA", "__objc_catlist");
5283 walk_pointer_list_32("category", CA, O, &info, print_category32_t);
5286 const SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
5287 if (PL != SectionRef()) {
5289 walk_pointer_list_32("protocol", PL, O, &info, nullptr);
5291 const SectionRef PL = get_section(O, "__DATA", "__objc_protolist");
5293 walk_pointer_list_32("protocol", PL, O, &info, nullptr);
5296 const SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
5297 if (MR != SectionRef()) {
5299 print_message_refs32(MR, &info);
5301 const SectionRef MR = get_section(O, "__DATA", "__objc_msgrefs");
5303 print_message_refs32(MR, &info);
5306 const SectionRef II = get_section(O, "__OBJC2", "__image_info");
5307 if (II != SectionRef()) {
5309 print_image_info32(II, &info);
5311 const SectionRef II = get_section(O, "__DATA", "__objc_imageinfo");
5313 print_image_info32(II, &info);
5317 static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) {
5318 uint32_t i, j, p, offset, xoffset, left, defs_left, def;
5319 const char *r, *name, *defs;
5320 struct objc_module_t module;
5322 struct objc_symtab_t symtab;
5323 struct objc_class_t objc_class;
5324 struct objc_category_t objc_category;
5326 outs() << "Objective-C segment\n";
5327 S = get_section(O, "__OBJC", "__module_info");
5328 if (S == SectionRef())
5331 SymbolAddressMap AddrMap;
5333 CreateSymbolAddressMap(O, &AddrMap);
5335 std::vector<SectionRef> Sections;
5336 for (const SectionRef &Section : O->sections()) {
5338 Section.getName(SectName);
5339 Sections.push_back(Section);
5342 struct DisassembleInfo info;
5343 // Set up the block of info used by the Symbolizer call backs.
5344 info.verbose = verbose;
5346 info.AddrMap = &AddrMap;
5347 info.Sections = &Sections;
5348 info.class_name = nullptr;
5349 info.selector_name = nullptr;
5350 info.method = nullptr;
5351 info.demangled_name = nullptr;
5352 info.bindtable = nullptr;
5356 for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) {
5357 p = S.getAddress() + i;
5358 r = get_pointer_32(p, offset, left, S, &info, true);
5361 memset(&module, '\0', sizeof(struct objc_module_t));
5362 if (left < sizeof(struct objc_module_t)) {
5363 memcpy(&module, r, left);
5364 outs() << " (module extends past end of __module_info section)\n";
5366 memcpy(&module, r, sizeof(struct objc_module_t));
5367 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5370 outs() << "Module " << format("0x%" PRIx32, p) << "\n";
5371 outs() << " version " << module.version << "\n";
5372 outs() << " size " << module.size << "\n";
5374 name = get_pointer_32(module.name, xoffset, left, xS, &info, true);
5375 if (name != nullptr)
5376 outs() << format("%.*s", left, name);
5378 outs() << format("0x%08" PRIx32, module.name)
5379 << "(not in an __OBJC section)";
5382 r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true);
5383 if (module.symtab == 0 || r == nullptr) {
5384 outs() << " symtab " << format("0x%08" PRIx32, module.symtab)
5385 << " (not in an __OBJC section)\n";
5388 outs() << " symtab " << format("0x%08" PRIx32, module.symtab) << "\n";
5389 memset(&symtab, '\0', sizeof(struct objc_symtab_t));
5392 if (left < sizeof(struct objc_symtab_t)) {
5393 memcpy(&symtab, r, left);
5394 outs() << "\tsymtab extends past end of an __OBJC section)\n";
5396 memcpy(&symtab, r, sizeof(struct objc_symtab_t));
5397 if (left > sizeof(struct objc_symtab_t)) {
5398 defs_left = left - sizeof(struct objc_symtab_t);
5399 defs = r + sizeof(struct objc_symtab_t);
5402 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5405 outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n";
5406 r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true);
5407 outs() << "\trefs " << format("0x%08" PRIx32, symtab.refs);
5409 outs() << " (not in an __OBJC section)";
5411 outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n";
5412 outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n";
5413 if (symtab.cls_def_cnt > 0)
5414 outs() << "\tClass Definitions\n";
5415 for (j = 0; j < symtab.cls_def_cnt; j++) {
5416 if ((j + 1) * sizeof(uint32_t) > defs_left) {
5417 outs() << "\t(remaining class defs entries entends past the end of the "
5421 memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t));
5422 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5423 sys::swapByteOrder(def);
5425 r = get_pointer_32(def, xoffset, left, xS, &info, true);
5426 outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32, def);
5428 if (left > sizeof(struct objc_class_t)) {
5430 memcpy(&objc_class, r, sizeof(struct objc_class_t));
5432 outs() << " (entends past the end of the section)\n";
5433 memset(&objc_class, '\0', sizeof(struct objc_class_t));
5434 memcpy(&objc_class, r, left);
5436 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5437 swapStruct(objc_class);
5438 print_objc_class_t(&objc_class, &info);
5440 outs() << "(not in an __OBJC section)\n";
5443 if (CLS_GETINFO(&objc_class, CLS_CLASS)) {
5444 outs() << "\tMeta Class";
5445 r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true);
5447 if (left > sizeof(struct objc_class_t)) {
5449 memcpy(&objc_class, r, sizeof(struct objc_class_t));
5451 outs() << " (entends past the end of the section)\n";
5452 memset(&objc_class, '\0', sizeof(struct objc_class_t));
5453 memcpy(&objc_class, r, left);
5455 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5456 swapStruct(objc_class);
5457 print_objc_class_t(&objc_class, &info);
5459 outs() << "(not in an __OBJC section)\n";
5463 if (symtab.cat_def_cnt > 0)
5464 outs() << "\tCategory Definitions\n";
5465 for (j = 0; j < symtab.cat_def_cnt; j++) {
5466 if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) {
5467 outs() << "\t(remaining category defs entries entends past the end of "
5468 << "the section)\n";
5471 memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t),
5473 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5474 sys::swapByteOrder(def);
5476 r = get_pointer_32(def, xoffset, left, xS, &info, true);
5477 outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] "
5478 << format("0x%08" PRIx32, def);
5480 if (left > sizeof(struct objc_category_t)) {
5482 memcpy(&objc_category, r, sizeof(struct objc_category_t));
5484 outs() << " (entends past the end of the section)\n";
5485 memset(&objc_category, '\0', sizeof(struct objc_category_t));
5486 memcpy(&objc_category, r, left);
5488 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5489 swapStruct(objc_category);
5490 print_objc_objc_category_t(&objc_category, &info);
5492 outs() << "(not in an __OBJC section)\n";
5496 const SectionRef II = get_section(O, "__OBJC", "__image_info");
5497 if (II != SectionRef())
5498 print_image_info(II, &info);
5503 static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
5504 uint32_t size, uint32_t addr) {
5505 SymbolAddressMap AddrMap;
5506 CreateSymbolAddressMap(O, &AddrMap);
5508 std::vector<SectionRef> Sections;
5509 for (const SectionRef &Section : O->sections()) {
5511 Section.getName(SectName);
5512 Sections.push_back(Section);
5515 struct DisassembleInfo info;
5516 // Set up the block of info used by the Symbolizer call backs.
5517 info.verbose = true;
5519 info.AddrMap = &AddrMap;
5520 info.Sections = &Sections;
5521 info.class_name = nullptr;
5522 info.selector_name = nullptr;
5523 info.method = nullptr;
5524 info.demangled_name = nullptr;
5525 info.bindtable = nullptr;
5530 struct objc_protocol_t protocol;
5531 uint32_t left, paddr;
5532 for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) {
5533 memset(&protocol, '\0', sizeof(struct objc_protocol_t));
5534 left = size - (p - sect);
5535 if (left < sizeof(struct objc_protocol_t)) {
5536 outs() << "Protocol extends past end of __protocol section\n";
5537 memcpy(&protocol, p, left);
5539 memcpy(&protocol, p, sizeof(struct objc_protocol_t));
5540 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5541 swapStruct(protocol);
5542 paddr = addr + (p - sect);
5543 outs() << "Protocol " << format("0x%" PRIx32, paddr);
5544 if (print_protocol(paddr, 0, &info))
5545 outs() << "(not in an __OBJC section)\n";
5549 static void printObjcMetaData(MachOObjectFile *O, bool verbose) {
5551 printObjc2_64bit_MetaData(O, verbose);
5553 MachO::mach_header H;
5555 if (H.cputype == MachO::CPU_TYPE_ARM)
5556 printObjc2_32bit_MetaData(O, verbose);
5558 // This is the 32-bit non-arm cputype case. Which is normally
5559 // the first Objective-C ABI. But it may be the case of a
5560 // binary for the iOS simulator which is the second Objective-C
5561 // ABI. In that case printObjc1_32bit_MetaData() will determine that
5562 // and return false.
5563 if (!printObjc1_32bit_MetaData(O, verbose))
5564 printObjc2_32bit_MetaData(O, verbose);
5569 // GuessLiteralPointer returns a string which for the item in the Mach-O file
5570 // for the address passed in as ReferenceValue for printing as a comment with
5571 // the instruction and also returns the corresponding type of that item
5572 // indirectly through ReferenceType.
5574 // If ReferenceValue is an address of literal cstring then a pointer to the
5575 // cstring is returned and ReferenceType is set to
5576 // LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr .
5578 // If ReferenceValue is an address of an Objective-C CFString, Selector ref or
5579 // Class ref that name is returned and the ReferenceType is set accordingly.
5581 // Lastly, literals which are Symbol address in a literal pool are looked for
5582 // and if found the symbol name is returned and ReferenceType is set to
5583 // LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr .
5585 // If there is no item in the Mach-O file for the address passed in as
5586 // ReferenceValue nullptr is returned and ReferenceType is unchanged.
5587 static const char *GuessLiteralPointer(uint64_t ReferenceValue,
5588 uint64_t ReferencePC,
5589 uint64_t *ReferenceType,
5590 struct DisassembleInfo *info) {
5591 // First see if there is an external relocation entry at the ReferencePC.
5592 if (info->O->getHeader().filetype == MachO::MH_OBJECT) {
5593 uint64_t sect_addr = info->S.getAddress();
5594 uint64_t sect_offset = ReferencePC - sect_addr;
5595 bool reloc_found = false;
5597 MachO::any_relocation_info RE;
5598 bool isExtern = false;
5600 for (const RelocationRef &Reloc : info->S.relocations()) {
5601 uint64_t RelocOffset = Reloc.getOffset();
5602 if (RelocOffset == sect_offset) {
5603 Rel = Reloc.getRawDataRefImpl();
5604 RE = info->O->getRelocation(Rel);
5605 if (info->O->isRelocationScattered(RE))
5607 isExtern = info->O->getPlainRelocationExternal(RE);
5609 symbol_iterator RelocSym = Reloc.getSymbol();
5616 // If there is an external relocation entry for a symbol in a section
5617 // then used that symbol's value for the value of the reference.
5618 if (reloc_found && isExtern) {
5619 if (info->O->getAnyRelocationPCRel(RE)) {
5620 unsigned Type = info->O->getAnyRelocationType(RE);
5621 if (Type == MachO::X86_64_RELOC_SIGNED) {
5622 ReferenceValue = Symbol.getValue();
5628 // Look for literals such as Objective-C CFStrings refs, Selector refs,
5629 // Message refs and Class refs.
5630 bool classref, selref, msgref, cfstring;
5631 uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref,
5632 selref, msgref, cfstring);
5633 if (classref && pointer_value == 0) {
5634 // Note the ReferenceValue is a pointer into the __objc_classrefs section.
5635 // And the pointer_value in that section is typically zero as it will be
5636 // set by dyld as part of the "bind information".
5637 const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info);
5638 if (name != nullptr) {
5639 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
5640 const char *class_name = strrchr(name, '$');
5641 if (class_name != nullptr && class_name[1] == '_' &&
5642 class_name[2] != '\0') {
5643 info->class_name = class_name + 2;
5650 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
5652 get_objc2_64bit_class_name(pointer_value, ReferenceValue, info);
5653 if (name != nullptr)
5654 info->class_name = name;
5656 name = "bad class ref";
5661 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref;
5662 const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info);
5666 if (selref && pointer_value == 0)
5667 pointer_value = get_objc2_64bit_selref(ReferenceValue, info);
5669 if (pointer_value != 0)
5670 ReferenceValue = pointer_value;
5672 const char *name = GuessCstringPointer(ReferenceValue, info);
5674 if (pointer_value != 0 && selref) {
5675 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref;
5676 info->selector_name = name;
5677 } else if (pointer_value != 0 && msgref) {
5678 info->class_name = nullptr;
5679 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref;
5680 info->selector_name = name;
5682 *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr;
5686 // Lastly look for an indirect symbol with this ReferenceValue which is in
5687 // a literal pool. If found return that symbol name.
5688 name = GuessIndirectSymbol(ReferenceValue, info);
5690 *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr;
5697 // SymbolizerSymbolLookUp is the symbol lookup function passed when creating
5698 // the Symbolizer. It looks up the ReferenceValue using the info passed via the
5699 // pointer to the struct DisassembleInfo that was passed when MCSymbolizer
5700 // is created and returns the symbol name that matches the ReferenceValue or
5701 // nullptr if none. The ReferenceType is passed in for the IN type of
5702 // reference the instruction is making from the values in defined in the header
5703 // "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific
5704 // Out type and the ReferenceName will also be set which is added as a comment
5705 // to the disassembled instruction.
5708 // If the symbol name is a C++ mangled name then the demangled name is
5709 // returned through ReferenceName and ReferenceType is set to
5710 // LLVMDisassembler_ReferenceType_DeMangled_Name .
5713 // When this is called to get a symbol name for a branch target then the
5714 // ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then
5715 // SymbolValue will be looked for in the indirect symbol table to determine if
5716 // it is an address for a symbol stub. If so then the symbol name for that
5717 // stub is returned indirectly through ReferenceName and then ReferenceType is
5718 // set to LLVMDisassembler_ReferenceType_Out_SymbolStub.
5720 // When this is called with an value loaded via a PC relative load then
5721 // ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the
5722 // SymbolValue is checked to be an address of literal pointer, symbol pointer,
5723 // or an Objective-C meta data reference. If so the output ReferenceType is
5724 // set to correspond to that as well as setting the ReferenceName.
5725 static const char *SymbolizerSymbolLookUp(void *DisInfo,
5726 uint64_t ReferenceValue,
5727 uint64_t *ReferenceType,
5728 uint64_t ReferencePC,
5729 const char **ReferenceName) {
5730 struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo;
5731 // If no verbose symbolic information is wanted then just return nullptr.
5732 if (!info->verbose) {
5733 *ReferenceName = nullptr;
5734 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5738 const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
5740 if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch) {
5741 *ReferenceName = GuessIndirectSymbol(ReferenceValue, info);
5742 if (*ReferenceName != nullptr) {
5743 method_reference(info, ReferenceType, ReferenceName);
5744 if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message)
5745 *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub;
5748 if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
5749 if (info->demangled_name != nullptr)
5750 free(info->demangled_name);
5752 info->demangled_name =
5753 abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
5754 if (info->demangled_name != nullptr) {
5755 *ReferenceName = info->demangled_name;
5756 *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
5758 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5761 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5762 } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load) {
5764 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5766 method_reference(info, ReferenceType, ReferenceName);
5768 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5769 // If this is arm64 and the reference is an adrp instruction save the
5770 // instruction, passed in ReferenceValue and the address of the instruction
5771 // for use later if we see and add immediate instruction.
5772 } else if (info->O->getArch() == Triple::aarch64 &&
5773 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP) {
5774 info->adrp_inst = ReferenceValue;
5775 info->adrp_addr = ReferencePC;
5776 SymbolName = nullptr;
5777 *ReferenceName = nullptr;
5778 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5779 // If this is arm64 and reference is an add immediate instruction and we
5781 // seen an adrp instruction just before it and the adrp's Xd register
5783 // this add's Xn register reconstruct the value being referenced and look to
5784 // see if it is a literal pointer. Note the add immediate instruction is
5785 // passed in ReferenceValue.
5786 } else if (info->O->getArch() == Triple::aarch64 &&
5787 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri &&
5788 ReferencePC - 4 == info->adrp_addr &&
5789 (info->adrp_inst & 0x9f000000) == 0x90000000 &&
5790 (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
5791 uint32_t addxri_inst;
5792 uint64_t adrp_imm, addxri_imm;
5795 ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
5796 if (info->adrp_inst & 0x0200000)
5797 adrp_imm |= 0xfffffffffc000000LL;
5799 addxri_inst = ReferenceValue;
5800 addxri_imm = (addxri_inst >> 10) & 0xfff;
5801 if (((addxri_inst >> 22) & 0x3) == 1)
5804 ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
5805 (adrp_imm << 12) + addxri_imm;
5808 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5809 if (*ReferenceName == nullptr)
5810 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5811 // If this is arm64 and the reference is a load register instruction and we
5812 // have seen an adrp instruction just before it and the adrp's Xd register
5813 // matches this add's Xn register reconstruct the value being referenced and
5814 // look to see if it is a literal pointer. Note the load register
5815 // instruction is passed in ReferenceValue.
5816 } else if (info->O->getArch() == Triple::aarch64 &&
5817 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui &&
5818 ReferencePC - 4 == info->adrp_addr &&
5819 (info->adrp_inst & 0x9f000000) == 0x90000000 &&
5820 (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
5821 uint32_t ldrxui_inst;
5822 uint64_t adrp_imm, ldrxui_imm;
5825 ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
5826 if (info->adrp_inst & 0x0200000)
5827 adrp_imm |= 0xfffffffffc000000LL;
5829 ldrxui_inst = ReferenceValue;
5830 ldrxui_imm = (ldrxui_inst >> 10) & 0xfff;
5832 ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
5833 (adrp_imm << 12) + (ldrxui_imm << 3);
5836 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5837 if (*ReferenceName == nullptr)
5838 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5840 // If this arm64 and is an load register (PC-relative) instruction the
5841 // ReferenceValue is the PC plus the immediate value.
5842 else if (info->O->getArch() == Triple::aarch64 &&
5843 (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl ||
5844 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR)) {
5846 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5847 if (*ReferenceName == nullptr)
5848 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5851 else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
5852 if (info->demangled_name != nullptr)
5853 free(info->demangled_name);
5855 info->demangled_name =
5856 abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
5857 if (info->demangled_name != nullptr) {
5858 *ReferenceName = info->demangled_name;
5859 *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
5864 *ReferenceName = nullptr;
5865 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5871 /// \brief Emits the comments that are stored in the CommentStream.
5872 /// Each comment in the CommentStream must end with a newline.
5873 static void emitComments(raw_svector_ostream &CommentStream,
5874 SmallString<128> &CommentsToEmit,
5875 formatted_raw_ostream &FormattedOS,
5876 const MCAsmInfo &MAI) {
5877 // Flush the stream before taking its content.
5878 StringRef Comments = CommentsToEmit.str();
5879 // Get the default information for printing a comment.
5880 const char *CommentBegin = MAI.getCommentString();
5881 unsigned CommentColumn = MAI.getCommentColumn();
5882 bool IsFirst = true;
5883 while (!Comments.empty()) {
5885 FormattedOS << '\n';
5886 // Emit a line of comments.
5887 FormattedOS.PadToColumn(CommentColumn);
5888 size_t Position = Comments.find('\n');
5889 FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position);
5890 // Move after the newline character.
5891 Comments = Comments.substr(Position + 1);
5894 FormattedOS.flush();
5896 // Tell the comment stream that the vector changed underneath it.
5897 CommentsToEmit.clear();
5900 static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF,
5901 StringRef DisSegName, StringRef DisSectName) {
5902 const char *McpuDefault = nullptr;
5903 const Target *ThumbTarget = nullptr;
5904 const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget);
5906 // GetTarget prints out stuff.
5909 if (MCPU.empty() && McpuDefault)
5912 std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
5913 std::unique_ptr<const MCInstrInfo> ThumbInstrInfo;
5915 ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo());
5917 // Package up features to be passed to target/subtarget
5918 std::string FeaturesStr;
5919 if (MAttrs.size()) {
5920 SubtargetFeatures Features;
5921 for (unsigned i = 0; i != MAttrs.size(); ++i)
5922 Features.AddFeature(MAttrs[i]);
5923 FeaturesStr = Features.getString();
5926 // Set up disassembler.
5927 std::unique_ptr<const MCRegisterInfo> MRI(
5928 TheTarget->createMCRegInfo(TripleName));
5929 std::unique_ptr<const MCAsmInfo> AsmInfo(
5930 TheTarget->createMCAsmInfo(*MRI, TripleName));
5931 std::unique_ptr<const MCSubtargetInfo> STI(
5932 TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
5933 MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr);
5934 std::unique_ptr<MCDisassembler> DisAsm(
5935 TheTarget->createMCDisassembler(*STI, Ctx));
5936 std::unique_ptr<MCSymbolizer> Symbolizer;
5937 struct DisassembleInfo SymbolizerInfo;
5938 std::unique_ptr<MCRelocationInfo> RelInfo(
5939 TheTarget->createMCRelocationInfo(TripleName, Ctx));
5941 Symbolizer.reset(TheTarget->createMCSymbolizer(
5942 TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
5943 &SymbolizerInfo, &Ctx, std::move(RelInfo)));
5944 DisAsm->setSymbolizer(std::move(Symbolizer));
5946 int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
5947 std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
5948 Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI));
5949 // Set the display preference for hex vs. decimal immediates.
5950 IP->setPrintImmHex(PrintImmHex);
5951 // Comment stream and backing vector.
5952 SmallString<128> CommentsToEmit;
5953 raw_svector_ostream CommentStream(CommentsToEmit);
5954 // FIXME: Setting the CommentStream in the InstPrinter is problematic in that
5955 // if it is done then arm64 comments for string literals don't get printed
5956 // and some constant get printed instead and not setting it causes intel
5957 // (32-bit and 64-bit) comments printed with different spacing before the
5958 // comment causing different diffs with the 'C' disassembler library API.
5959 // IP->setCommentStream(CommentStream);
5961 if (!AsmInfo || !STI || !DisAsm || !IP) {
5962 errs() << "error: couldn't initialize disassembler for target "
5963 << TripleName << '\n';
5967 // Set up thumb disassembler.
5968 std::unique_ptr<const MCRegisterInfo> ThumbMRI;
5969 std::unique_ptr<const MCAsmInfo> ThumbAsmInfo;
5970 std::unique_ptr<const MCSubtargetInfo> ThumbSTI;
5971 std::unique_ptr<MCDisassembler> ThumbDisAsm;
5972 std::unique_ptr<MCInstPrinter> ThumbIP;
5973 std::unique_ptr<MCContext> ThumbCtx;
5974 std::unique_ptr<MCSymbolizer> ThumbSymbolizer;
5975 struct DisassembleInfo ThumbSymbolizerInfo;
5976 std::unique_ptr<MCRelocationInfo> ThumbRelInfo;
5978 ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName));
5980 ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName));
5982 ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MCPU, FeaturesStr));
5983 ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr));
5984 ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx));
5985 MCContext *PtrThumbCtx = ThumbCtx.get();
5987 ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx));
5989 ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer(
5990 ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
5991 &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo)));
5992 ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer));
5994 int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect();
5995 ThumbIP.reset(ThumbTarget->createMCInstPrinter(
5996 Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo,
5997 *ThumbInstrInfo, *ThumbMRI));
5998 // Set the display preference for hex vs. decimal immediates.
5999 ThumbIP->setPrintImmHex(PrintImmHex);
6002 if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) {
6003 errs() << "error: couldn't initialize disassembler for target "
6004 << ThumbTripleName << '\n';
6008 MachO::mach_header Header = MachOOF->getHeader();
6010 // FIXME: Using the -cfg command line option, this code used to be able to
6011 // annotate relocations with the referenced symbol's name, and if this was
6012 // inside a __[cf]string section, the data it points to. This is now replaced
6013 // by the upcoming MCSymbolizer, which needs the appropriate setup done above.
6014 std::vector<SectionRef> Sections;
6015 std::vector<SymbolRef> Symbols;
6016 SmallVector<uint64_t, 8> FoundFns;
6017 uint64_t BaseSegmentAddress;
6019 getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns,
6020 BaseSegmentAddress);
6022 // Sort the symbols by address, just in case they didn't come in that way.
6023 std::sort(Symbols.begin(), Symbols.end(), SymbolSorter());
6025 // Build a data in code table that is sorted on by the address of each entry.
6026 uint64_t BaseAddress = 0;
6027 if (Header.filetype == MachO::MH_OBJECT)
6028 BaseAddress = Sections[0].getAddress();
6030 BaseAddress = BaseSegmentAddress;
6032 for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices();
6035 DI->getOffset(Offset);
6036 Dices.push_back(std::make_pair(BaseAddress + Offset, *DI));
6038 array_pod_sort(Dices.begin(), Dices.end());
6041 raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
6043 raw_ostream &DebugOut = nulls();
6046 std::unique_ptr<DIContext> diContext;
6047 ObjectFile *DbgObj = MachOOF;
6048 // Try to find debug info and set up the DIContext for it.
6050 // A separate DSym file path was specified, parse it as a macho file,
6051 // get the sections and supply it to the section name parsing machinery.
6052 if (!DSYMFile.empty()) {
6053 ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr =
6054 MemoryBuffer::getFileOrSTDIN(DSYMFile);
6055 if (std::error_code EC = BufOrErr.getError()) {
6056 errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n';
6060 ObjectFile::createMachOObjectFile(BufOrErr.get()->getMemBufferRef())
6065 // Setup the DIContext
6066 diContext.reset(new DWARFContextInMemory(*DbgObj));
6069 if (FilterSections.size() == 0)
6070 outs() << "(" << DisSegName << "," << DisSectName << ") section\n";
6072 for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) {
6074 if (Sections[SectIdx].getName(SectName) || SectName != DisSectName)
6077 DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
6079 StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
6080 if (SegmentName != DisSegName)
6084 Sections[SectIdx].getContents(BytesStr);
6085 ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
6087 uint64_t SectAddress = Sections[SectIdx].getAddress();
6089 bool symbolTableWorked = false;
6091 // Create a map of symbol addresses to symbol names for use by
6092 // the SymbolizerSymbolLookUp() routine.
6093 SymbolAddressMap AddrMap;
6094 bool DisSymNameFound = false;
6095 for (const SymbolRef &Symbol : MachOOF->symbols()) {
6096 SymbolRef::Type ST = Symbol.getType();
6097 if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
6098 ST == SymbolRef::ST_Other) {
6099 uint64_t Address = Symbol.getValue();
6100 ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
6101 if (std::error_code EC = SymNameOrErr.getError())
6102 report_fatal_error(EC.message());
6103 StringRef SymName = *SymNameOrErr;
6104 AddrMap[Address] = SymName;
6105 if (!DisSymName.empty() && DisSymName == SymName)
6106 DisSymNameFound = true;
6109 if (!DisSymName.empty() && !DisSymNameFound) {
6110 outs() << "Can't find -dis-symname: " << DisSymName << "\n";
6113 // Set up the block of info used by the Symbolizer call backs.
6114 SymbolizerInfo.verbose = !NoSymbolicOperands;
6115 SymbolizerInfo.O = MachOOF;
6116 SymbolizerInfo.S = Sections[SectIdx];
6117 SymbolizerInfo.AddrMap = &AddrMap;
6118 SymbolizerInfo.Sections = &Sections;
6119 SymbolizerInfo.class_name = nullptr;
6120 SymbolizerInfo.selector_name = nullptr;
6121 SymbolizerInfo.method = nullptr;
6122 SymbolizerInfo.demangled_name = nullptr;
6123 SymbolizerInfo.bindtable = nullptr;
6124 SymbolizerInfo.adrp_addr = 0;
6125 SymbolizerInfo.adrp_inst = 0;
6126 // Same for the ThumbSymbolizer
6127 ThumbSymbolizerInfo.verbose = !NoSymbolicOperands;
6128 ThumbSymbolizerInfo.O = MachOOF;
6129 ThumbSymbolizerInfo.S = Sections[SectIdx];
6130 ThumbSymbolizerInfo.AddrMap = &AddrMap;
6131 ThumbSymbolizerInfo.Sections = &Sections;
6132 ThumbSymbolizerInfo.class_name = nullptr;
6133 ThumbSymbolizerInfo.selector_name = nullptr;
6134 ThumbSymbolizerInfo.method = nullptr;
6135 ThumbSymbolizerInfo.demangled_name = nullptr;
6136 ThumbSymbolizerInfo.bindtable = nullptr;
6137 ThumbSymbolizerInfo.adrp_addr = 0;
6138 ThumbSymbolizerInfo.adrp_inst = 0;
6140 // Disassemble symbol by symbol.
6141 for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) {
6142 ErrorOr<StringRef> SymNameOrErr = Symbols[SymIdx].getName();
6143 if (std::error_code EC = SymNameOrErr.getError())
6144 report_fatal_error(EC.message());
6145 StringRef SymName = *SymNameOrErr;
6147 SymbolRef::Type ST = Symbols[SymIdx].getType();
6148 if (ST != SymbolRef::ST_Function)
6151 // Make sure the symbol is defined in this section.
6152 bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]);
6156 // If we are only disassembling one symbol see if this is that symbol.
6157 if (!DisSymName.empty() && DisSymName != SymName)
6160 // Start at the address of the symbol relative to the section's address.
6161 uint64_t Start = Symbols[SymIdx].getValue();
6162 uint64_t SectionAddress = Sections[SectIdx].getAddress();
6163 Start -= SectionAddress;
6165 // Stop disassembling either at the beginning of the next symbol or at
6166 // the end of the section.
6167 bool containsNextSym = false;
6168 uint64_t NextSym = 0;
6169 uint64_t NextSymIdx = SymIdx + 1;
6170 while (Symbols.size() > NextSymIdx) {
6171 SymbolRef::Type NextSymType = Symbols[NextSymIdx].getType();
6172 if (NextSymType == SymbolRef::ST_Function) {
6174 Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]);
6175 NextSym = Symbols[NextSymIdx].getValue();
6176 NextSym -= SectionAddress;
6182 uint64_t SectSize = Sections[SectIdx].getSize();
6183 uint64_t End = containsNextSym ? NextSym : SectSize;
6186 symbolTableWorked = true;
6188 DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl();
6190 (MachOOF->getSymbolFlags(Symb) & SymbolRef::SF_Thumb) && ThumbTarget;
6192 outs() << SymName << ":\n";
6193 DILineInfo lastLine;
6194 for (uint64_t Index = Start; Index < End; Index += Size) {
6197 uint64_t PC = SectAddress + Index;
6198 if (!NoLeadingAddr) {
6199 if (FullLeadingAddr) {
6200 if (MachOOF->is64Bit())
6201 outs() << format("%016" PRIx64, PC);
6203 outs() << format("%08" PRIx64, PC);
6205 outs() << format("%8" PRIx64 ":", PC);
6211 // Check the data in code table here to see if this is data not an
6212 // instruction to be disassembled.
6214 Dice.push_back(std::make_pair(PC, DiceRef()));
6215 dice_table_iterator DTI =
6216 std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(),
6217 compareDiceTableEntries);
6218 if (DTI != Dices.end()) {
6220 DTI->second.getLength(Length);
6222 DTI->second.getKind(Kind);
6223 Size = DumpDataInCode(Bytes.data() + Index, Length, Kind);
6224 if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) &&
6225 (PC == (DTI->first + Length - 1)) && (Length & 1))
6230 SmallVector<char, 64> AnnotationsBytes;
6231 raw_svector_ostream Annotations(AnnotationsBytes);
6235 gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
6236 PC, DebugOut, Annotations);
6238 gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC,
6239 DebugOut, Annotations);
6241 if (!NoShowRawInsn) {
6242 dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs());
6244 formatted_raw_ostream FormattedOS(outs());
6245 StringRef AnnotationsStr = Annotations.str();
6247 ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI);
6249 IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI);
6250 emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo);
6252 // Print debug info.
6254 DILineInfo dli = diContext->getLineInfoForAddress(PC);
6255 // Print valid line info if it changed.
6256 if (dli != lastLine && dli.Line != 0)
6257 outs() << "\t## " << dli.FileName << ':' << dli.Line << ':'
6263 unsigned int Arch = MachOOF->getArch();
6264 if (Arch == Triple::x86_64 || Arch == Triple::x86) {
6265 outs() << format("\t.byte 0x%02x #bad opcode\n",
6266 *(Bytes.data() + Index) & 0xff);
6267 Size = 1; // skip exactly one illegible byte and move on.
6268 } else if (Arch == Triple::aarch64) {
6269 uint32_t opcode = (*(Bytes.data() + Index) & 0xff) |
6270 (*(Bytes.data() + Index + 1) & 0xff) << 8 |
6271 (*(Bytes.data() + Index + 2) & 0xff) << 16 |
6272 (*(Bytes.data() + Index + 3) & 0xff) << 24;
6273 outs() << format("\t.long\t0x%08x\n", opcode);
6276 errs() << "llvm-objdump: warning: invalid instruction encoding\n";
6278 Size = 1; // skip illegible bytes
6283 if (!symbolTableWorked) {
6284 // Reading the symbol table didn't work, disassemble the whole section.
6285 uint64_t SectAddress = Sections[SectIdx].getAddress();
6286 uint64_t SectSize = Sections[SectIdx].getSize();
6288 for (uint64_t Index = 0; Index < SectSize; Index += InstSize) {
6291 uint64_t PC = SectAddress + Index;
6292 if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC,
6293 DebugOut, nulls())) {
6294 if (!NoLeadingAddr) {
6295 if (FullLeadingAddr) {
6296 if (MachOOF->is64Bit())
6297 outs() << format("%016" PRIx64, PC);
6299 outs() << format("%08" PRIx64, PC);
6301 outs() << format("%8" PRIx64 ":", PC);
6304 if (!NoShowRawInsn) {
6306 dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs());
6308 IP->printInst(&Inst, outs(), "", *STI);
6311 unsigned int Arch = MachOOF->getArch();
6312 if (Arch == Triple::x86_64 || Arch == Triple::x86) {
6313 outs() << format("\t.byte 0x%02x #bad opcode\n",
6314 *(Bytes.data() + Index) & 0xff);
6315 InstSize = 1; // skip exactly one illegible byte and move on.
6317 errs() << "llvm-objdump: warning: invalid instruction encoding\n";
6319 InstSize = 1; // skip illegible bytes
6324 // The TripleName's need to be reset if we are called again for a different
6327 ThumbTripleName = "";
6329 if (SymbolizerInfo.method != nullptr)
6330 free(SymbolizerInfo.method);
6331 if (SymbolizerInfo.demangled_name != nullptr)
6332 free(SymbolizerInfo.demangled_name);
6333 if (SymbolizerInfo.bindtable != nullptr)
6334 delete SymbolizerInfo.bindtable;
6335 if (ThumbSymbolizerInfo.method != nullptr)
6336 free(ThumbSymbolizerInfo.method);
6337 if (ThumbSymbolizerInfo.demangled_name != nullptr)
6338 free(ThumbSymbolizerInfo.demangled_name);
6339 if (ThumbSymbolizerInfo.bindtable != nullptr)
6340 delete ThumbSymbolizerInfo.bindtable;
6344 //===----------------------------------------------------------------------===//
6345 // __compact_unwind section dumping
6346 //===----------------------------------------------------------------------===//
6350 template <typename T> static uint64_t readNext(const char *&Buf) {
6351 using llvm::support::little;
6352 using llvm::support::unaligned;
6354 uint64_t Val = support::endian::read<T, little, unaligned>(Buf);
6359 struct CompactUnwindEntry {
6360 uint32_t OffsetInSection;
6362 uint64_t FunctionAddr;
6364 uint32_t CompactEncoding;
6365 uint64_t PersonalityAddr;
6368 RelocationRef FunctionReloc;
6369 RelocationRef PersonalityReloc;
6370 RelocationRef LSDAReloc;
6372 CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64)
6373 : OffsetInSection(Offset) {
6375 read<uint64_t>(Contents.data() + Offset);
6377 read<uint32_t>(Contents.data() + Offset);
6381 template <typename UIntPtr> void read(const char *Buf) {
6382 FunctionAddr = readNext<UIntPtr>(Buf);
6383 Length = readNext<uint32_t>(Buf);
6384 CompactEncoding = readNext<uint32_t>(Buf);
6385 PersonalityAddr = readNext<UIntPtr>(Buf);
6386 LSDAAddr = readNext<UIntPtr>(Buf);
6391 /// Given a relocation from __compact_unwind, consisting of the RelocationRef
6392 /// and data being relocated, determine the best base Name and Addend to use for
6393 /// display purposes.
6395 /// 1. An Extern relocation will directly reference a symbol (and the data is
6396 /// then already an addend), so use that.
6397 /// 2. Otherwise the data is an offset in the object file's layout; try to find
6398 // a symbol before it in the same section, and use the offset from there.
6399 /// 3. Finally, if all that fails, fall back to an offset from the start of the
6400 /// referenced section.
6401 static void findUnwindRelocNameAddend(const MachOObjectFile *Obj,
6402 std::map<uint64_t, SymbolRef> &Symbols,
6403 const RelocationRef &Reloc, uint64_t Addr,
6404 StringRef &Name, uint64_t &Addend) {
6405 if (Reloc.getSymbol() != Obj->symbol_end()) {
6406 ErrorOr<StringRef> NameOrErr = Reloc.getSymbol()->getName();
6407 if (std::error_code EC = NameOrErr.getError())
6408 report_fatal_error(EC.message());
6414 auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl());
6415 SectionRef RelocSection = Obj->getAnyRelocationSection(RE);
6417 uint64_t SectionAddr = RelocSection.getAddress();
6419 auto Sym = Symbols.upper_bound(Addr);
6420 if (Sym == Symbols.begin()) {
6421 // The first symbol in the object is after this reference, the best we can
6422 // do is section-relative notation.
6423 RelocSection.getName(Name);
6424 Addend = Addr - SectionAddr;
6428 // Go back one so that SymbolAddress <= Addr.
6431 section_iterator SymSection = *Sym->second.getSection();
6432 if (RelocSection == *SymSection) {
6433 // There's a valid symbol in the same section before this reference.
6434 ErrorOr<StringRef> NameOrErr = Sym->second.getName();
6435 if (std::error_code EC = NameOrErr.getError())
6436 report_fatal_error(EC.message());
6438 Addend = Addr - Sym->first;
6442 // There is a symbol before this reference, but it's in a different
6443 // section. Probably not helpful to mention it, so use the section name.
6444 RelocSection.getName(Name);
6445 Addend = Addr - SectionAddr;
6448 static void printUnwindRelocDest(const MachOObjectFile *Obj,
6449 std::map<uint64_t, SymbolRef> &Symbols,
6450 const RelocationRef &Reloc, uint64_t Addr) {
6454 if (!Reloc.getObject())
6457 findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend);
6461 outs() << " + " << format("0x%" PRIx64, Addend);
6465 printMachOCompactUnwindSection(const MachOObjectFile *Obj,
6466 std::map<uint64_t, SymbolRef> &Symbols,
6467 const SectionRef &CompactUnwind) {
6469 assert(Obj->isLittleEndian() &&
6470 "There should not be a big-endian .o with __compact_unwind");
6472 bool Is64 = Obj->is64Bit();
6473 uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t);
6474 uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t);
6477 CompactUnwind.getContents(Contents);
6479 SmallVector<CompactUnwindEntry, 4> CompactUnwinds;
6481 // First populate the initial raw offsets, encodings and so on from the entry.
6482 for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) {
6483 CompactUnwindEntry Entry(Contents.data(), Offset, Is64);
6484 CompactUnwinds.push_back(Entry);
6487 // Next we need to look at the relocations to find out what objects are
6488 // actually being referred to.
6489 for (const RelocationRef &Reloc : CompactUnwind.relocations()) {
6490 uint64_t RelocAddress = Reloc.getOffset();
6492 uint32_t EntryIdx = RelocAddress / EntrySize;
6493 uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize;
6494 CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx];
6496 if (OffsetInEntry == 0)
6497 Entry.FunctionReloc = Reloc;
6498 else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t))
6499 Entry.PersonalityReloc = Reloc;
6500 else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t))
6501 Entry.LSDAReloc = Reloc;
6503 llvm_unreachable("Unexpected relocation in __compact_unwind section");
6506 // Finally, we're ready to print the data we've gathered.
6507 outs() << "Contents of __compact_unwind section:\n";
6508 for (auto &Entry : CompactUnwinds) {
6509 outs() << " Entry at offset "
6510 << format("0x%" PRIx32, Entry.OffsetInSection) << ":\n";
6512 // 1. Start of the region this entry applies to.
6513 outs() << " start: " << format("0x%" PRIx64,
6514 Entry.FunctionAddr) << ' ';
6515 printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr);
6518 // 2. Length of the region this entry applies to.
6519 outs() << " length: " << format("0x%" PRIx32, Entry.Length)
6521 // 3. The 32-bit compact encoding.
6522 outs() << " compact encoding: "
6523 << format("0x%08" PRIx32, Entry.CompactEncoding) << '\n';
6525 // 4. The personality function, if present.
6526 if (Entry.PersonalityReloc.getObject()) {
6527 outs() << " personality function: "
6528 << format("0x%" PRIx64, Entry.PersonalityAddr) << ' ';
6529 printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc,
6530 Entry.PersonalityAddr);
6534 // 5. This entry's language-specific data area.
6535 if (Entry.LSDAReloc.getObject()) {
6536 outs() << " LSDA: " << format("0x%" PRIx64,
6537 Entry.LSDAAddr) << ' ';
6538 printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr);
6544 //===----------------------------------------------------------------------===//
6545 // __unwind_info section dumping
6546 //===----------------------------------------------------------------------===//
6548 static void printRegularSecondLevelUnwindPage(const char *PageStart) {
6549 const char *Pos = PageStart;
6550 uint32_t Kind = readNext<uint32_t>(Pos);
6552 assert(Kind == 2 && "kind for a regular 2nd level index should be 2");
6554 uint16_t EntriesStart = readNext<uint16_t>(Pos);
6555 uint16_t NumEntries = readNext<uint16_t>(Pos);
6557 Pos = PageStart + EntriesStart;
6558 for (unsigned i = 0; i < NumEntries; ++i) {
6559 uint32_t FunctionOffset = readNext<uint32_t>(Pos);
6560 uint32_t Encoding = readNext<uint32_t>(Pos);
6562 outs() << " [" << i << "]: "
6563 << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
6565 << "encoding=" << format("0x%08" PRIx32, Encoding) << '\n';
6569 static void printCompressedSecondLevelUnwindPage(
6570 const char *PageStart, uint32_t FunctionBase,
6571 const SmallVectorImpl<uint32_t> &CommonEncodings) {
6572 const char *Pos = PageStart;
6573 uint32_t Kind = readNext<uint32_t>(Pos);
6575 assert(Kind == 3 && "kind for a compressed 2nd level index should be 3");
6577 uint16_t EntriesStart = readNext<uint16_t>(Pos);
6578 uint16_t NumEntries = readNext<uint16_t>(Pos);
6580 uint16_t EncodingsStart = readNext<uint16_t>(Pos);
6581 readNext<uint16_t>(Pos);
6582 const auto *PageEncodings = reinterpret_cast<const support::ulittle32_t *>(
6583 PageStart + EncodingsStart);
6585 Pos = PageStart + EntriesStart;
6586 for (unsigned i = 0; i < NumEntries; ++i) {
6587 uint32_t Entry = readNext<uint32_t>(Pos);
6588 uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff);
6589 uint32_t EncodingIdx = Entry >> 24;
6592 if (EncodingIdx < CommonEncodings.size())
6593 Encoding = CommonEncodings[EncodingIdx];
6595 Encoding = PageEncodings[EncodingIdx - CommonEncodings.size()];
6597 outs() << " [" << i << "]: "
6598 << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
6600 << "encoding[" << EncodingIdx
6601 << "]=" << format("0x%08" PRIx32, Encoding) << '\n';
6605 static void printMachOUnwindInfoSection(const MachOObjectFile *Obj,
6606 std::map<uint64_t, SymbolRef> &Symbols,
6607 const SectionRef &UnwindInfo) {
6609 assert(Obj->isLittleEndian() &&
6610 "There should not be a big-endian .o with __unwind_info");
6612 outs() << "Contents of __unwind_info section:\n";
6615 UnwindInfo.getContents(Contents);
6616 const char *Pos = Contents.data();
6618 //===----------------------------------
6620 //===----------------------------------
6622 uint32_t Version = readNext<uint32_t>(Pos);
6623 outs() << " Version: "
6624 << format("0x%" PRIx32, Version) << '\n';
6625 assert(Version == 1 && "only understand version 1");
6627 uint32_t CommonEncodingsStart = readNext<uint32_t>(Pos);
6628 outs() << " Common encodings array section offset: "
6629 << format("0x%" PRIx32, CommonEncodingsStart) << '\n';
6630 uint32_t NumCommonEncodings = readNext<uint32_t>(Pos);
6631 outs() << " Number of common encodings in array: "
6632 << format("0x%" PRIx32, NumCommonEncodings) << '\n';
6634 uint32_t PersonalitiesStart = readNext<uint32_t>(Pos);
6635 outs() << " Personality function array section offset: "
6636 << format("0x%" PRIx32, PersonalitiesStart) << '\n';
6637 uint32_t NumPersonalities = readNext<uint32_t>(Pos);
6638 outs() << " Number of personality functions in array: "
6639 << format("0x%" PRIx32, NumPersonalities) << '\n';
6641 uint32_t IndicesStart = readNext<uint32_t>(Pos);
6642 outs() << " Index array section offset: "
6643 << format("0x%" PRIx32, IndicesStart) << '\n';
6644 uint32_t NumIndices = readNext<uint32_t>(Pos);
6645 outs() << " Number of indices in array: "
6646 << format("0x%" PRIx32, NumIndices) << '\n';
6648 //===----------------------------------
6649 // A shared list of common encodings
6650 //===----------------------------------
6652 // These occupy indices in the range [0, N] whenever an encoding is referenced
6653 // from a compressed 2nd level index table. In practice the linker only
6654 // creates ~128 of these, so that indices are available to embed encodings in
6655 // the 2nd level index.
6657 SmallVector<uint32_t, 64> CommonEncodings;
6658 outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n";
6659 Pos = Contents.data() + CommonEncodingsStart;
6660 for (unsigned i = 0; i < NumCommonEncodings; ++i) {
6661 uint32_t Encoding = readNext<uint32_t>(Pos);
6662 CommonEncodings.push_back(Encoding);
6664 outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32, Encoding)
6668 //===----------------------------------
6669 // Personality functions used in this executable
6670 //===----------------------------------
6672 // There should be only a handful of these (one per source language,
6673 // roughly). Particularly since they only get 2 bits in the compact encoding.
6675 outs() << " Personality functions: (count = " << NumPersonalities << ")\n";
6676 Pos = Contents.data() + PersonalitiesStart;
6677 for (unsigned i = 0; i < NumPersonalities; ++i) {
6678 uint32_t PersonalityFn = readNext<uint32_t>(Pos);
6679 outs() << " personality[" << i + 1
6680 << "]: " << format("0x%08" PRIx32, PersonalityFn) << '\n';
6683 //===----------------------------------
6684 // The level 1 index entries
6685 //===----------------------------------
6687 // These specify an approximate place to start searching for the more detailed
6688 // information, sorted by PC.
6691 uint32_t FunctionOffset;
6692 uint32_t SecondLevelPageStart;
6696 SmallVector<IndexEntry, 4> IndexEntries;
6698 outs() << " Top level indices: (count = " << NumIndices << ")\n";
6699 Pos = Contents.data() + IndicesStart;
6700 for (unsigned i = 0; i < NumIndices; ++i) {
6703 Entry.FunctionOffset = readNext<uint32_t>(Pos);
6704 Entry.SecondLevelPageStart = readNext<uint32_t>(Pos);
6705 Entry.LSDAStart = readNext<uint32_t>(Pos);
6706 IndexEntries.push_back(Entry);
6708 outs() << " [" << i << "]: "
6709 << "function offset=" << format("0x%08" PRIx32, Entry.FunctionOffset)
6711 << "2nd level page offset="
6712 << format("0x%08" PRIx32, Entry.SecondLevelPageStart) << ", "
6713 << "LSDA offset=" << format("0x%08" PRIx32, Entry.LSDAStart) << '\n';
6716 //===----------------------------------
6717 // Next come the LSDA tables
6718 //===----------------------------------
6720 // The LSDA layout is rather implicit: it's a contiguous array of entries from
6721 // the first top-level index's LSDAOffset to the last (sentinel).
6723 outs() << " LSDA descriptors:\n";
6724 Pos = Contents.data() + IndexEntries[0].LSDAStart;
6725 int NumLSDAs = (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) /
6726 (2 * sizeof(uint32_t));
6727 for (int i = 0; i < NumLSDAs; ++i) {
6728 uint32_t FunctionOffset = readNext<uint32_t>(Pos);
6729 uint32_t LSDAOffset = readNext<uint32_t>(Pos);
6730 outs() << " [" << i << "]: "
6731 << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
6733 << "LSDA offset=" << format("0x%08" PRIx32, LSDAOffset) << '\n';
6736 //===----------------------------------
6737 // Finally, the 2nd level indices
6738 //===----------------------------------
6740 // Generally these are 4K in size, and have 2 possible forms:
6741 // + Regular stores up to 511 entries with disparate encodings
6742 // + Compressed stores up to 1021 entries if few enough compact encoding
6744 outs() << " Second level indices:\n";
6745 for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) {
6746 // The final sentinel top-level index has no associated 2nd level page
6747 if (IndexEntries[i].SecondLevelPageStart == 0)
6750 outs() << " Second level index[" << i << "]: "
6751 << "offset in section="
6752 << format("0x%08" PRIx32, IndexEntries[i].SecondLevelPageStart)
6754 << "base function offset="
6755 << format("0x%08" PRIx32, IndexEntries[i].FunctionOffset) << '\n';
6757 Pos = Contents.data() + IndexEntries[i].SecondLevelPageStart;
6758 uint32_t Kind = *reinterpret_cast<const support::ulittle32_t *>(Pos);
6760 printRegularSecondLevelUnwindPage(Pos);
6762 printCompressedSecondLevelUnwindPage(Pos, IndexEntries[i].FunctionOffset,
6765 llvm_unreachable("Do not know how to print this kind of 2nd level page");
6769 void llvm::printMachOUnwindInfo(const MachOObjectFile *Obj) {
6770 std::map<uint64_t, SymbolRef> Symbols;
6771 for (const SymbolRef &SymRef : Obj->symbols()) {
6772 // Discard any undefined or absolute symbols. They're not going to take part
6773 // in the convenience lookup for unwind info and just take up resources.
6774 section_iterator Section = *SymRef.getSection();
6775 if (Section == Obj->section_end())
6778 uint64_t Addr = SymRef.getValue();
6779 Symbols.insert(std::make_pair(Addr, SymRef));
6782 for (const SectionRef &Section : Obj->sections()) {
6784 Section.getName(SectName);
6785 if (SectName == "__compact_unwind")
6786 printMachOCompactUnwindSection(Obj, Symbols, Section);
6787 else if (SectName == "__unwind_info")
6788 printMachOUnwindInfoSection(Obj, Symbols, Section);
6789 else if (SectName == "__eh_frame")
6790 outs() << "llvm-objdump: warning: unhandled __eh_frame section\n";
6794 static void PrintMachHeader(uint32_t magic, uint32_t cputype,
6795 uint32_t cpusubtype, uint32_t filetype,
6796 uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags,
6798 outs() << "Mach header\n";
6799 outs() << " magic cputype cpusubtype caps filetype ncmds "
6800 "sizeofcmds flags\n";
6802 if (magic == MachO::MH_MAGIC)
6803 outs() << " MH_MAGIC";
6804 else if (magic == MachO::MH_MAGIC_64)
6805 outs() << "MH_MAGIC_64";
6807 outs() << format(" 0x%08" PRIx32, magic);
6809 case MachO::CPU_TYPE_I386:
6811 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6812 case MachO::CPU_SUBTYPE_I386_ALL:
6816 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6820 case MachO::CPU_TYPE_X86_64:
6821 outs() << " X86_64";
6822 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6823 case MachO::CPU_SUBTYPE_X86_64_ALL:
6826 case MachO::CPU_SUBTYPE_X86_64_H:
6827 outs() << " Haswell";
6830 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6834 case MachO::CPU_TYPE_ARM:
6836 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6837 case MachO::CPU_SUBTYPE_ARM_ALL:
6840 case MachO::CPU_SUBTYPE_ARM_V4T:
6843 case MachO::CPU_SUBTYPE_ARM_V5TEJ:
6846 case MachO::CPU_SUBTYPE_ARM_XSCALE:
6847 outs() << " XSCALE";
6849 case MachO::CPU_SUBTYPE_ARM_V6:
6852 case MachO::CPU_SUBTYPE_ARM_V6M:
6855 case MachO::CPU_SUBTYPE_ARM_V7:
6858 case MachO::CPU_SUBTYPE_ARM_V7EM:
6861 case MachO::CPU_SUBTYPE_ARM_V7K:
6864 case MachO::CPU_SUBTYPE_ARM_V7M:
6867 case MachO::CPU_SUBTYPE_ARM_V7S:
6871 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6875 case MachO::CPU_TYPE_ARM64:
6877 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6878 case MachO::CPU_SUBTYPE_ARM64_ALL:
6882 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6886 case MachO::CPU_TYPE_POWERPC:
6888 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6889 case MachO::CPU_SUBTYPE_POWERPC_ALL:
6893 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6897 case MachO::CPU_TYPE_POWERPC64:
6899 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6900 case MachO::CPU_SUBTYPE_POWERPC_ALL:
6904 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6909 if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) {
6912 outs() << format(" 0x%02" PRIx32,
6913 (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
6916 case MachO::MH_OBJECT:
6917 outs() << " OBJECT";
6919 case MachO::MH_EXECUTE:
6920 outs() << " EXECUTE";
6922 case MachO::MH_FVMLIB:
6923 outs() << " FVMLIB";
6925 case MachO::MH_CORE:
6928 case MachO::MH_PRELOAD:
6929 outs() << " PRELOAD";
6931 case MachO::MH_DYLIB:
6934 case MachO::MH_DYLIB_STUB:
6935 outs() << " DYLIB_STUB";
6937 case MachO::MH_DYLINKER:
6938 outs() << " DYLINKER";
6940 case MachO::MH_BUNDLE:
6941 outs() << " BUNDLE";
6943 case MachO::MH_DSYM:
6946 case MachO::MH_KEXT_BUNDLE:
6947 outs() << " KEXTBUNDLE";
6950 outs() << format(" %10u", filetype);
6953 outs() << format(" %5u", ncmds);
6954 outs() << format(" %10u", sizeofcmds);
6956 if (f & MachO::MH_NOUNDEFS) {
6957 outs() << " NOUNDEFS";
6958 f &= ~MachO::MH_NOUNDEFS;
6960 if (f & MachO::MH_INCRLINK) {
6961 outs() << " INCRLINK";
6962 f &= ~MachO::MH_INCRLINK;
6964 if (f & MachO::MH_DYLDLINK) {
6965 outs() << " DYLDLINK";
6966 f &= ~MachO::MH_DYLDLINK;
6968 if (f & MachO::MH_BINDATLOAD) {
6969 outs() << " BINDATLOAD";
6970 f &= ~MachO::MH_BINDATLOAD;
6972 if (f & MachO::MH_PREBOUND) {
6973 outs() << " PREBOUND";
6974 f &= ~MachO::MH_PREBOUND;
6976 if (f & MachO::MH_SPLIT_SEGS) {
6977 outs() << " SPLIT_SEGS";
6978 f &= ~MachO::MH_SPLIT_SEGS;
6980 if (f & MachO::MH_LAZY_INIT) {
6981 outs() << " LAZY_INIT";
6982 f &= ~MachO::MH_LAZY_INIT;
6984 if (f & MachO::MH_TWOLEVEL) {
6985 outs() << " TWOLEVEL";
6986 f &= ~MachO::MH_TWOLEVEL;
6988 if (f & MachO::MH_FORCE_FLAT) {
6989 outs() << " FORCE_FLAT";
6990 f &= ~MachO::MH_FORCE_FLAT;
6992 if (f & MachO::MH_NOMULTIDEFS) {
6993 outs() << " NOMULTIDEFS";
6994 f &= ~MachO::MH_NOMULTIDEFS;
6996 if (f & MachO::MH_NOFIXPREBINDING) {
6997 outs() << " NOFIXPREBINDING";
6998 f &= ~MachO::MH_NOFIXPREBINDING;
7000 if (f & MachO::MH_PREBINDABLE) {
7001 outs() << " PREBINDABLE";
7002 f &= ~MachO::MH_PREBINDABLE;
7004 if (f & MachO::MH_ALLMODSBOUND) {
7005 outs() << " ALLMODSBOUND";
7006 f &= ~MachO::MH_ALLMODSBOUND;
7008 if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) {
7009 outs() << " SUBSECTIONS_VIA_SYMBOLS";
7010 f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS;
7012 if (f & MachO::MH_CANONICAL) {
7013 outs() << " CANONICAL";
7014 f &= ~MachO::MH_CANONICAL;
7016 if (f & MachO::MH_WEAK_DEFINES) {
7017 outs() << " WEAK_DEFINES";
7018 f &= ~MachO::MH_WEAK_DEFINES;
7020 if (f & MachO::MH_BINDS_TO_WEAK) {
7021 outs() << " BINDS_TO_WEAK";
7022 f &= ~MachO::MH_BINDS_TO_WEAK;
7024 if (f & MachO::MH_ALLOW_STACK_EXECUTION) {
7025 outs() << " ALLOW_STACK_EXECUTION";
7026 f &= ~MachO::MH_ALLOW_STACK_EXECUTION;
7028 if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) {
7029 outs() << " DEAD_STRIPPABLE_DYLIB";
7030 f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB;
7032 if (f & MachO::MH_PIE) {
7034 f &= ~MachO::MH_PIE;
7036 if (f & MachO::MH_NO_REEXPORTED_DYLIBS) {
7037 outs() << " NO_REEXPORTED_DYLIBS";
7038 f &= ~MachO::MH_NO_REEXPORTED_DYLIBS;
7040 if (f & MachO::MH_HAS_TLV_DESCRIPTORS) {
7041 outs() << " MH_HAS_TLV_DESCRIPTORS";
7042 f &= ~MachO::MH_HAS_TLV_DESCRIPTORS;
7044 if (f & MachO::MH_NO_HEAP_EXECUTION) {
7045 outs() << " MH_NO_HEAP_EXECUTION";
7046 f &= ~MachO::MH_NO_HEAP_EXECUTION;
7048 if (f & MachO::MH_APP_EXTENSION_SAFE) {
7049 outs() << " APP_EXTENSION_SAFE";
7050 f &= ~MachO::MH_APP_EXTENSION_SAFE;
7052 if (f != 0 || flags == 0)
7053 outs() << format(" 0x%08" PRIx32, f);
7055 outs() << format(" 0x%08" PRIx32, magic);
7056 outs() << format(" %7d", cputype);
7057 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
7058 outs() << format(" 0x%02" PRIx32,
7059 (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
7060 outs() << format(" %10u", filetype);
7061 outs() << format(" %5u", ncmds);
7062 outs() << format(" %10u", sizeofcmds);
7063 outs() << format(" 0x%08" PRIx32, flags);
7068 static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize,
7069 StringRef SegName, uint64_t vmaddr,
7070 uint64_t vmsize, uint64_t fileoff,
7071 uint64_t filesize, uint32_t maxprot,
7072 uint32_t initprot, uint32_t nsects,
7073 uint32_t flags, uint32_t object_size,
7075 uint64_t expected_cmdsize;
7076 if (cmd == MachO::LC_SEGMENT) {
7077 outs() << " cmd LC_SEGMENT\n";
7078 expected_cmdsize = nsects;
7079 expected_cmdsize *= sizeof(struct MachO::section);
7080 expected_cmdsize += sizeof(struct MachO::segment_command);
7082 outs() << " cmd LC_SEGMENT_64\n";
7083 expected_cmdsize = nsects;
7084 expected_cmdsize *= sizeof(struct MachO::section_64);
7085 expected_cmdsize += sizeof(struct MachO::segment_command_64);
7087 outs() << " cmdsize " << cmdsize;
7088 if (cmdsize != expected_cmdsize)
7089 outs() << " Inconsistent size\n";
7092 outs() << " segname " << SegName << "\n";
7093 if (cmd == MachO::LC_SEGMENT_64) {
7094 outs() << " vmaddr " << format("0x%016" PRIx64, vmaddr) << "\n";
7095 outs() << " vmsize " << format("0x%016" PRIx64, vmsize) << "\n";
7097 outs() << " vmaddr " << format("0x%08" PRIx64, vmaddr) << "\n";
7098 outs() << " vmsize " << format("0x%08" PRIx64, vmsize) << "\n";
7100 outs() << " fileoff " << fileoff;
7101 if (fileoff > object_size)
7102 outs() << " (past end of file)\n";
7105 outs() << " filesize " << filesize;
7106 if (fileoff + filesize > object_size)
7107 outs() << " (past end of file)\n";
7112 ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE |
7113 MachO::VM_PROT_EXECUTE)) != 0)
7114 outs() << " maxprot ?" << format("0x%08" PRIx32, maxprot) << "\n";
7116 outs() << " maxprot ";
7117 outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-");
7118 outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-");
7119 outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n");
7122 ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE |
7123 MachO::VM_PROT_EXECUTE)) != 0)
7124 outs() << " initprot ?" << format("0x%08" PRIx32, initprot) << "\n";
7126 outs() << " initprot ";
7127 outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-");
7128 outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-");
7129 outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n");
7132 outs() << " maxprot " << format("0x%08" PRIx32, maxprot) << "\n";
7133 outs() << " initprot " << format("0x%08" PRIx32, initprot) << "\n";
7135 outs() << " nsects " << nsects << "\n";
7139 outs() << " (none)\n";
7141 if (flags & MachO::SG_HIGHVM) {
7142 outs() << " HIGHVM";
7143 flags &= ~MachO::SG_HIGHVM;
7145 if (flags & MachO::SG_FVMLIB) {
7146 outs() << " FVMLIB";
7147 flags &= ~MachO::SG_FVMLIB;
7149 if (flags & MachO::SG_NORELOC) {
7150 outs() << " NORELOC";
7151 flags &= ~MachO::SG_NORELOC;
7153 if (flags & MachO::SG_PROTECTED_VERSION_1) {
7154 outs() << " PROTECTED_VERSION_1";
7155 flags &= ~MachO::SG_PROTECTED_VERSION_1;
7158 outs() << format(" 0x%08" PRIx32, flags) << " (unknown flags)\n";
7163 outs() << " flags " << format("0x%" PRIx32, flags) << "\n";
7167 static void PrintSection(const char *sectname, const char *segname,
7168 uint64_t addr, uint64_t size, uint32_t offset,
7169 uint32_t align, uint32_t reloff, uint32_t nreloc,
7170 uint32_t flags, uint32_t reserved1, uint32_t reserved2,
7171 uint32_t cmd, const char *sg_segname,
7172 uint32_t filetype, uint32_t object_size,
7174 outs() << "Section\n";
7175 outs() << " sectname " << format("%.16s\n", sectname);
7176 outs() << " segname " << format("%.16s", segname);
7177 if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0)
7178 outs() << " (does not match segment)\n";
7181 if (cmd == MachO::LC_SEGMENT_64) {
7182 outs() << " addr " << format("0x%016" PRIx64, addr) << "\n";
7183 outs() << " size " << format("0x%016" PRIx64, size);
7185 outs() << " addr " << format("0x%08" PRIx64, addr) << "\n";
7186 outs() << " size " << format("0x%08" PRIx64, size);
7188 if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size)
7189 outs() << " (past end of file)\n";
7192 outs() << " offset " << offset;
7193 if (offset > object_size)
7194 outs() << " (past end of file)\n";
7197 uint32_t align_shifted = 1 << align;
7198 outs() << " align 2^" << align << " (" << align_shifted << ")\n";
7199 outs() << " reloff " << reloff;
7200 if (reloff > object_size)
7201 outs() << " (past end of file)\n";
7204 outs() << " nreloc " << nreloc;
7205 if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size)
7206 outs() << " (past end of file)\n";
7209 uint32_t section_type = flags & MachO::SECTION_TYPE;
7212 if (section_type == MachO::S_REGULAR)
7213 outs() << " S_REGULAR\n";
7214 else if (section_type == MachO::S_ZEROFILL)
7215 outs() << " S_ZEROFILL\n";
7216 else if (section_type == MachO::S_CSTRING_LITERALS)
7217 outs() << " S_CSTRING_LITERALS\n";
7218 else if (section_type == MachO::S_4BYTE_LITERALS)
7219 outs() << " S_4BYTE_LITERALS\n";
7220 else if (section_type == MachO::S_8BYTE_LITERALS)
7221 outs() << " S_8BYTE_LITERALS\n";
7222 else if (section_type == MachO::S_16BYTE_LITERALS)
7223 outs() << " S_16BYTE_LITERALS\n";
7224 else if (section_type == MachO::S_LITERAL_POINTERS)
7225 outs() << " S_LITERAL_POINTERS\n";
7226 else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS)
7227 outs() << " S_NON_LAZY_SYMBOL_POINTERS\n";
7228 else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS)
7229 outs() << " S_LAZY_SYMBOL_POINTERS\n";
7230 else if (section_type == MachO::S_SYMBOL_STUBS)
7231 outs() << " S_SYMBOL_STUBS\n";
7232 else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS)
7233 outs() << " S_MOD_INIT_FUNC_POINTERS\n";
7234 else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS)
7235 outs() << " S_MOD_TERM_FUNC_POINTERS\n";
7236 else if (section_type == MachO::S_COALESCED)
7237 outs() << " S_COALESCED\n";
7238 else if (section_type == MachO::S_INTERPOSING)
7239 outs() << " S_INTERPOSING\n";
7240 else if (section_type == MachO::S_DTRACE_DOF)
7241 outs() << " S_DTRACE_DOF\n";
7242 else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS)
7243 outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n";
7244 else if (section_type == MachO::S_THREAD_LOCAL_REGULAR)
7245 outs() << " S_THREAD_LOCAL_REGULAR\n";
7246 else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL)
7247 outs() << " S_THREAD_LOCAL_ZEROFILL\n";
7248 else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES)
7249 outs() << " S_THREAD_LOCAL_VARIABLES\n";
7250 else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS)
7251 outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n";
7252 else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS)
7253 outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n";
7255 outs() << format("0x%08" PRIx32, section_type) << "\n";
7256 outs() << "attributes";
7257 uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES;
7258 if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS)
7259 outs() << " PURE_INSTRUCTIONS";
7260 if (section_attributes & MachO::S_ATTR_NO_TOC)
7261 outs() << " NO_TOC";
7262 if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS)
7263 outs() << " STRIP_STATIC_SYMS";
7264 if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP)
7265 outs() << " NO_DEAD_STRIP";
7266 if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT)
7267 outs() << " LIVE_SUPPORT";
7268 if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE)
7269 outs() << " SELF_MODIFYING_CODE";
7270 if (section_attributes & MachO::S_ATTR_DEBUG)
7272 if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS)
7273 outs() << " SOME_INSTRUCTIONS";
7274 if (section_attributes & MachO::S_ATTR_EXT_RELOC)
7275 outs() << " EXT_RELOC";
7276 if (section_attributes & MachO::S_ATTR_LOC_RELOC)
7277 outs() << " LOC_RELOC";
7278 if (section_attributes == 0)
7279 outs() << " (none)";
7282 outs() << " flags " << format("0x%08" PRIx32, flags) << "\n";
7283 outs() << " reserved1 " << reserved1;
7284 if (section_type == MachO::S_SYMBOL_STUBS ||
7285 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
7286 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
7287 section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
7288 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS)
7289 outs() << " (index into indirect symbol table)\n";
7292 outs() << " reserved2 " << reserved2;
7293 if (section_type == MachO::S_SYMBOL_STUBS)
7294 outs() << " (size of stubs)\n";
7299 static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit,
7300 uint32_t object_size) {
7301 outs() << " cmd LC_SYMTAB\n";
7302 outs() << " cmdsize " << st.cmdsize;
7303 if (st.cmdsize != sizeof(struct MachO::symtab_command))
7304 outs() << " Incorrect size\n";
7307 outs() << " symoff " << st.symoff;
7308 if (st.symoff > object_size)
7309 outs() << " (past end of file)\n";
7312 outs() << " nsyms " << st.nsyms;
7315 big_size = st.nsyms;
7316 big_size *= sizeof(struct MachO::nlist_64);
7317 big_size += st.symoff;
7318 if (big_size > object_size)
7319 outs() << " (past end of file)\n";
7323 big_size = st.nsyms;
7324 big_size *= sizeof(struct MachO::nlist);
7325 big_size += st.symoff;
7326 if (big_size > object_size)
7327 outs() << " (past end of file)\n";
7331 outs() << " stroff " << st.stroff;
7332 if (st.stroff > object_size)
7333 outs() << " (past end of file)\n";
7336 outs() << " strsize " << st.strsize;
7337 big_size = st.stroff;
7338 big_size += st.strsize;
7339 if (big_size > object_size)
7340 outs() << " (past end of file)\n";
7345 static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst,
7346 uint32_t nsyms, uint32_t object_size,
7348 outs() << " cmd LC_DYSYMTAB\n";
7349 outs() << " cmdsize " << dyst.cmdsize;
7350 if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command))
7351 outs() << " Incorrect size\n";
7354 outs() << " ilocalsym " << dyst.ilocalsym;
7355 if (dyst.ilocalsym > nsyms)
7356 outs() << " (greater than the number of symbols)\n";
7359 outs() << " nlocalsym " << dyst.nlocalsym;
7361 big_size = dyst.ilocalsym;
7362 big_size += dyst.nlocalsym;
7363 if (big_size > nsyms)
7364 outs() << " (past the end of the symbol table)\n";
7367 outs() << " iextdefsym " << dyst.iextdefsym;
7368 if (dyst.iextdefsym > nsyms)
7369 outs() << " (greater than the number of symbols)\n";
7372 outs() << " nextdefsym " << dyst.nextdefsym;
7373 big_size = dyst.iextdefsym;
7374 big_size += dyst.nextdefsym;
7375 if (big_size > nsyms)
7376 outs() << " (past the end of the symbol table)\n";
7379 outs() << " iundefsym " << dyst.iundefsym;
7380 if (dyst.iundefsym > nsyms)
7381 outs() << " (greater than the number of symbols)\n";
7384 outs() << " nundefsym " << dyst.nundefsym;
7385 big_size = dyst.iundefsym;
7386 big_size += dyst.nundefsym;
7387 if (big_size > nsyms)
7388 outs() << " (past the end of the symbol table)\n";
7391 outs() << " tocoff " << dyst.tocoff;
7392 if (dyst.tocoff > object_size)
7393 outs() << " (past end of file)\n";
7396 outs() << " ntoc " << dyst.ntoc;
7397 big_size = dyst.ntoc;
7398 big_size *= sizeof(struct MachO::dylib_table_of_contents);
7399 big_size += dyst.tocoff;
7400 if (big_size > object_size)
7401 outs() << " (past end of file)\n";
7404 outs() << " modtaboff " << dyst.modtaboff;
7405 if (dyst.modtaboff > object_size)
7406 outs() << " (past end of file)\n";
7409 outs() << " nmodtab " << dyst.nmodtab;
7412 modtabend = dyst.nmodtab;
7413 modtabend *= sizeof(struct MachO::dylib_module_64);
7414 modtabend += dyst.modtaboff;
7416 modtabend = dyst.nmodtab;
7417 modtabend *= sizeof(struct MachO::dylib_module);
7418 modtabend += dyst.modtaboff;
7420 if (modtabend > object_size)
7421 outs() << " (past end of file)\n";
7424 outs() << " extrefsymoff " << dyst.extrefsymoff;
7425 if (dyst.extrefsymoff > object_size)
7426 outs() << " (past end of file)\n";
7429 outs() << " nextrefsyms " << dyst.nextrefsyms;
7430 big_size = dyst.nextrefsyms;
7431 big_size *= sizeof(struct MachO::dylib_reference);
7432 big_size += dyst.extrefsymoff;
7433 if (big_size > object_size)
7434 outs() << " (past end of file)\n";
7437 outs() << " indirectsymoff " << dyst.indirectsymoff;
7438 if (dyst.indirectsymoff > object_size)
7439 outs() << " (past end of file)\n";
7442 outs() << " nindirectsyms " << dyst.nindirectsyms;
7443 big_size = dyst.nindirectsyms;
7444 big_size *= sizeof(uint32_t);
7445 big_size += dyst.indirectsymoff;
7446 if (big_size > object_size)
7447 outs() << " (past end of file)\n";
7450 outs() << " extreloff " << dyst.extreloff;
7451 if (dyst.extreloff > object_size)
7452 outs() << " (past end of file)\n";
7455 outs() << " nextrel " << dyst.nextrel;
7456 big_size = dyst.nextrel;
7457 big_size *= sizeof(struct MachO::relocation_info);
7458 big_size += dyst.extreloff;
7459 if (big_size > object_size)
7460 outs() << " (past end of file)\n";
7463 outs() << " locreloff " << dyst.locreloff;
7464 if (dyst.locreloff > object_size)
7465 outs() << " (past end of file)\n";
7468 outs() << " nlocrel " << dyst.nlocrel;
7469 big_size = dyst.nlocrel;
7470 big_size *= sizeof(struct MachO::relocation_info);
7471 big_size += dyst.locreloff;
7472 if (big_size > object_size)
7473 outs() << " (past end of file)\n";
7478 static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc,
7479 uint32_t object_size) {
7480 if (dc.cmd == MachO::LC_DYLD_INFO)
7481 outs() << " cmd LC_DYLD_INFO\n";
7483 outs() << " cmd LC_DYLD_INFO_ONLY\n";
7484 outs() << " cmdsize " << dc.cmdsize;
7485 if (dc.cmdsize != sizeof(struct MachO::dyld_info_command))
7486 outs() << " Incorrect size\n";
7489 outs() << " rebase_off " << dc.rebase_off;
7490 if (dc.rebase_off > object_size)
7491 outs() << " (past end of file)\n";
7494 outs() << " rebase_size " << dc.rebase_size;
7496 big_size = dc.rebase_off;
7497 big_size += dc.rebase_size;
7498 if (big_size > object_size)
7499 outs() << " (past end of file)\n";
7502 outs() << " bind_off " << dc.bind_off;
7503 if (dc.bind_off > object_size)
7504 outs() << " (past end of file)\n";
7507 outs() << " bind_size " << dc.bind_size;
7508 big_size = dc.bind_off;
7509 big_size += dc.bind_size;
7510 if (big_size > object_size)
7511 outs() << " (past end of file)\n";
7514 outs() << " weak_bind_off " << dc.weak_bind_off;
7515 if (dc.weak_bind_off > object_size)
7516 outs() << " (past end of file)\n";
7519 outs() << " weak_bind_size " << dc.weak_bind_size;
7520 big_size = dc.weak_bind_off;
7521 big_size += dc.weak_bind_size;
7522 if (big_size > object_size)
7523 outs() << " (past end of file)\n";
7526 outs() << " lazy_bind_off " << dc.lazy_bind_off;
7527 if (dc.lazy_bind_off > object_size)
7528 outs() << " (past end of file)\n";
7531 outs() << " lazy_bind_size " << dc.lazy_bind_size;
7532 big_size = dc.lazy_bind_off;
7533 big_size += dc.lazy_bind_size;
7534 if (big_size > object_size)
7535 outs() << " (past end of file)\n";
7538 outs() << " export_off " << dc.export_off;
7539 if (dc.export_off > object_size)
7540 outs() << " (past end of file)\n";
7543 outs() << " export_size " << dc.export_size;
7544 big_size = dc.export_off;
7545 big_size += dc.export_size;
7546 if (big_size > object_size)
7547 outs() << " (past end of file)\n";
7552 static void PrintDyldLoadCommand(MachO::dylinker_command dyld,
7554 if (dyld.cmd == MachO::LC_ID_DYLINKER)
7555 outs() << " cmd LC_ID_DYLINKER\n";
7556 else if (dyld.cmd == MachO::LC_LOAD_DYLINKER)
7557 outs() << " cmd LC_LOAD_DYLINKER\n";
7558 else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT)
7559 outs() << " cmd LC_DYLD_ENVIRONMENT\n";
7561 outs() << " cmd ?(" << dyld.cmd << ")\n";
7562 outs() << " cmdsize " << dyld.cmdsize;
7563 if (dyld.cmdsize < sizeof(struct MachO::dylinker_command))
7564 outs() << " Incorrect size\n";
7567 if (dyld.name >= dyld.cmdsize)
7568 outs() << " name ?(bad offset " << dyld.name << ")\n";
7570 const char *P = (const char *)(Ptr) + dyld.name;
7571 outs() << " name " << P << " (offset " << dyld.name << ")\n";
7575 static void PrintUuidLoadCommand(MachO::uuid_command uuid) {
7576 outs() << " cmd LC_UUID\n";
7577 outs() << " cmdsize " << uuid.cmdsize;
7578 if (uuid.cmdsize != sizeof(struct MachO::uuid_command))
7579 outs() << " Incorrect size\n";
7583 outs() << format("%02" PRIX32, uuid.uuid[0]);
7584 outs() << format("%02" PRIX32, uuid.uuid[1]);
7585 outs() << format("%02" PRIX32, uuid.uuid[2]);
7586 outs() << format("%02" PRIX32, uuid.uuid[3]);
7588 outs() << format("%02" PRIX32, uuid.uuid[4]);
7589 outs() << format("%02" PRIX32, uuid.uuid[5]);
7591 outs() << format("%02" PRIX32, uuid.uuid[6]);
7592 outs() << format("%02" PRIX32, uuid.uuid[7]);
7594 outs() << format("%02" PRIX32, uuid.uuid[8]);
7595 outs() << format("%02" PRIX32, uuid.uuid[9]);
7597 outs() << format("%02" PRIX32, uuid.uuid[10]);
7598 outs() << format("%02" PRIX32, uuid.uuid[11]);
7599 outs() << format("%02" PRIX32, uuid.uuid[12]);
7600 outs() << format("%02" PRIX32, uuid.uuid[13]);
7601 outs() << format("%02" PRIX32, uuid.uuid[14]);
7602 outs() << format("%02" PRIX32, uuid.uuid[15]);
7606 static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) {
7607 outs() << " cmd LC_RPATH\n";
7608 outs() << " cmdsize " << rpath.cmdsize;
7609 if (rpath.cmdsize < sizeof(struct MachO::rpath_command))
7610 outs() << " Incorrect size\n";
7613 if (rpath.path >= rpath.cmdsize)
7614 outs() << " path ?(bad offset " << rpath.path << ")\n";
7616 const char *P = (const char *)(Ptr) + rpath.path;
7617 outs() << " path " << P << " (offset " << rpath.path << ")\n";
7621 static void PrintVersionMinLoadCommand(MachO::version_min_command vd) {
7622 if (vd.cmd == MachO::LC_VERSION_MIN_MACOSX)
7623 outs() << " cmd LC_VERSION_MIN_MACOSX\n";
7624 else if (vd.cmd == MachO::LC_VERSION_MIN_IPHONEOS)
7625 outs() << " cmd LC_VERSION_MIN_IPHONEOS\n";
7627 outs() << " cmd " << vd.cmd << " (?)\n";
7628 outs() << " cmdsize " << vd.cmdsize;
7629 if (vd.cmdsize != sizeof(struct MachO::version_min_command))
7630 outs() << " Incorrect size\n";
7633 outs() << " version "
7634 << MachOObjectFile::getVersionMinMajor(vd, false) << "."
7635 << MachOObjectFile::getVersionMinMinor(vd, false);
7636 uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false);
7638 outs() << "." << Update;
7641 outs() << " sdk n/a";
7644 << MachOObjectFile::getVersionMinMajor(vd, true) << "."
7645 << MachOObjectFile::getVersionMinMinor(vd, true);
7647 Update = MachOObjectFile::getVersionMinUpdate(vd, true);
7649 outs() << "." << Update;
7653 static void PrintSourceVersionCommand(MachO::source_version_command sd) {
7654 outs() << " cmd LC_SOURCE_VERSION\n";
7655 outs() << " cmdsize " << sd.cmdsize;
7656 if (sd.cmdsize != sizeof(struct MachO::source_version_command))
7657 outs() << " Incorrect size\n";
7660 uint64_t a = (sd.version >> 40) & 0xffffff;
7661 uint64_t b = (sd.version >> 30) & 0x3ff;
7662 uint64_t c = (sd.version >> 20) & 0x3ff;
7663 uint64_t d = (sd.version >> 10) & 0x3ff;
7664 uint64_t e = sd.version & 0x3ff;
7665 outs() << " version " << a << "." << b;
7667 outs() << "." << c << "." << d << "." << e;
7669 outs() << "." << c << "." << d;
7675 static void PrintEntryPointCommand(MachO::entry_point_command ep) {
7676 outs() << " cmd LC_MAIN\n";
7677 outs() << " cmdsize " << ep.cmdsize;
7678 if (ep.cmdsize != sizeof(struct MachO::entry_point_command))
7679 outs() << " Incorrect size\n";
7682 outs() << " entryoff " << ep.entryoff << "\n";
7683 outs() << " stacksize " << ep.stacksize << "\n";
7686 static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec,
7687 uint32_t object_size) {
7688 outs() << " cmd LC_ENCRYPTION_INFO\n";
7689 outs() << " cmdsize " << ec.cmdsize;
7690 if (ec.cmdsize != sizeof(struct MachO::encryption_info_command))
7691 outs() << " Incorrect size\n";
7694 outs() << " cryptoff " << ec.cryptoff;
7695 if (ec.cryptoff > object_size)
7696 outs() << " (past end of file)\n";
7699 outs() << " cryptsize " << ec.cryptsize;
7700 if (ec.cryptsize > object_size)
7701 outs() << " (past end of file)\n";
7704 outs() << " cryptid " << ec.cryptid << "\n";
7707 static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec,
7708 uint32_t object_size) {
7709 outs() << " cmd LC_ENCRYPTION_INFO_64\n";
7710 outs() << " cmdsize " << ec.cmdsize;
7711 if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64))
7712 outs() << " Incorrect size\n";
7715 outs() << " cryptoff " << ec.cryptoff;
7716 if (ec.cryptoff > object_size)
7717 outs() << " (past end of file)\n";
7720 outs() << " cryptsize " << ec.cryptsize;
7721 if (ec.cryptsize > object_size)
7722 outs() << " (past end of file)\n";
7725 outs() << " cryptid " << ec.cryptid << "\n";
7726 outs() << " pad " << ec.pad << "\n";
7729 static void PrintLinkerOptionCommand(MachO::linker_option_command lo,
7731 outs() << " cmd LC_LINKER_OPTION\n";
7732 outs() << " cmdsize " << lo.cmdsize;
7733 if (lo.cmdsize < sizeof(struct MachO::linker_option_command))
7734 outs() << " Incorrect size\n";
7737 outs() << " count " << lo.count << "\n";
7738 const char *string = Ptr + sizeof(struct MachO::linker_option_command);
7739 uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command);
7742 while (*string == '\0' && left > 0) {
7748 outs() << " string #" << i << " " << format("%.*s\n", left, string);
7749 uint32_t NullPos = StringRef(string, left).find('\0');
7750 uint32_t len = std::min(NullPos, left) + 1;
7756 outs() << " count " << lo.count << " does not match number of strings "
7760 static void PrintSubFrameworkCommand(MachO::sub_framework_command sub,
7762 outs() << " cmd LC_SUB_FRAMEWORK\n";
7763 outs() << " cmdsize " << sub.cmdsize;
7764 if (sub.cmdsize < sizeof(struct MachO::sub_framework_command))
7765 outs() << " Incorrect size\n";
7768 if (sub.umbrella < sub.cmdsize) {
7769 const char *P = Ptr + sub.umbrella;
7770 outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n";
7772 outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n";
7776 static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub,
7778 outs() << " cmd LC_SUB_UMBRELLA\n";
7779 outs() << " cmdsize " << sub.cmdsize;
7780 if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command))
7781 outs() << " Incorrect size\n";
7784 if (sub.sub_umbrella < sub.cmdsize) {
7785 const char *P = Ptr + sub.sub_umbrella;
7786 outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n";
7788 outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n";
7792 static void PrintSubLibraryCommand(MachO::sub_library_command sub,
7794 outs() << " cmd LC_SUB_LIBRARY\n";
7795 outs() << " cmdsize " << sub.cmdsize;
7796 if (sub.cmdsize < sizeof(struct MachO::sub_library_command))
7797 outs() << " Incorrect size\n";
7800 if (sub.sub_library < sub.cmdsize) {
7801 const char *P = Ptr + sub.sub_library;
7802 outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n";
7804 outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n";
7808 static void PrintSubClientCommand(MachO::sub_client_command sub,
7810 outs() << " cmd LC_SUB_CLIENT\n";
7811 outs() << " cmdsize " << sub.cmdsize;
7812 if (sub.cmdsize < sizeof(struct MachO::sub_client_command))
7813 outs() << " Incorrect size\n";
7816 if (sub.client < sub.cmdsize) {
7817 const char *P = Ptr + sub.client;
7818 outs() << " client " << P << " (offset " << sub.client << ")\n";
7820 outs() << " client ?(bad offset " << sub.client << ")\n";
7824 static void PrintRoutinesCommand(MachO::routines_command r) {
7825 outs() << " cmd LC_ROUTINES\n";
7826 outs() << " cmdsize " << r.cmdsize;
7827 if (r.cmdsize != sizeof(struct MachO::routines_command))
7828 outs() << " Incorrect size\n";
7831 outs() << " init_address " << format("0x%08" PRIx32, r.init_address) << "\n";
7832 outs() << " init_module " << r.init_module << "\n";
7833 outs() << " reserved1 " << r.reserved1 << "\n";
7834 outs() << " reserved2 " << r.reserved2 << "\n";
7835 outs() << " reserved3 " << r.reserved3 << "\n";
7836 outs() << " reserved4 " << r.reserved4 << "\n";
7837 outs() << " reserved5 " << r.reserved5 << "\n";
7838 outs() << " reserved6 " << r.reserved6 << "\n";
7841 static void PrintRoutinesCommand64(MachO::routines_command_64 r) {
7842 outs() << " cmd LC_ROUTINES_64\n";
7843 outs() << " cmdsize " << r.cmdsize;
7844 if (r.cmdsize != sizeof(struct MachO::routines_command_64))
7845 outs() << " Incorrect size\n";
7848 outs() << " init_address " << format("0x%016" PRIx64, r.init_address) << "\n";
7849 outs() << " init_module " << r.init_module << "\n";
7850 outs() << " reserved1 " << r.reserved1 << "\n";
7851 outs() << " reserved2 " << r.reserved2 << "\n";
7852 outs() << " reserved3 " << r.reserved3 << "\n";
7853 outs() << " reserved4 " << r.reserved4 << "\n";
7854 outs() << " reserved5 " << r.reserved5 << "\n";
7855 outs() << " reserved6 " << r.reserved6 << "\n";
7858 static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) {
7859 outs() << " rax " << format("0x%016" PRIx64, cpu64.rax);
7860 outs() << " rbx " << format("0x%016" PRIx64, cpu64.rbx);
7861 outs() << " rcx " << format("0x%016" PRIx64, cpu64.rcx) << "\n";
7862 outs() << " rdx " << format("0x%016" PRIx64, cpu64.rdx);
7863 outs() << " rdi " << format("0x%016" PRIx64, cpu64.rdi);
7864 outs() << " rsi " << format("0x%016" PRIx64, cpu64.rsi) << "\n";
7865 outs() << " rbp " << format("0x%016" PRIx64, cpu64.rbp);
7866 outs() << " rsp " << format("0x%016" PRIx64, cpu64.rsp);
7867 outs() << " r8 " << format("0x%016" PRIx64, cpu64.r8) << "\n";
7868 outs() << " r9 " << format("0x%016" PRIx64, cpu64.r9);
7869 outs() << " r10 " << format("0x%016" PRIx64, cpu64.r10);
7870 outs() << " r11 " << format("0x%016" PRIx64, cpu64.r11) << "\n";
7871 outs() << " r12 " << format("0x%016" PRIx64, cpu64.r12);
7872 outs() << " r13 " << format("0x%016" PRIx64, cpu64.r13);
7873 outs() << " r14 " << format("0x%016" PRIx64, cpu64.r14) << "\n";
7874 outs() << " r15 " << format("0x%016" PRIx64, cpu64.r15);
7875 outs() << " rip " << format("0x%016" PRIx64, cpu64.rip) << "\n";
7876 outs() << "rflags " << format("0x%016" PRIx64, cpu64.rflags);
7877 outs() << " cs " << format("0x%016" PRIx64, cpu64.cs);
7878 outs() << " fs " << format("0x%016" PRIx64, cpu64.fs) << "\n";
7879 outs() << " gs " << format("0x%016" PRIx64, cpu64.gs) << "\n";
7882 static void Print_mmst_reg(MachO::mmst_reg_t &r) {
7884 outs() << "\t mmst_reg ";
7885 for (f = 0; f < 10; f++)
7886 outs() << format("%02" PRIx32, (r.mmst_reg[f] & 0xff)) << " ";
7888 outs() << "\t mmst_rsrv ";
7889 for (f = 0; f < 6; f++)
7890 outs() << format("%02" PRIx32, (r.mmst_rsrv[f] & 0xff)) << " ";
7894 static void Print_xmm_reg(MachO::xmm_reg_t &r) {
7896 outs() << "\t xmm_reg ";
7897 for (f = 0; f < 16; f++)
7898 outs() << format("%02" PRIx32, (r.xmm_reg[f] & 0xff)) << " ";
7902 static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) {
7903 outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0];
7904 outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n";
7905 outs() << "\t control: invalid " << fpu.fpu_fcw.invalid;
7906 outs() << " denorm " << fpu.fpu_fcw.denorm;
7907 outs() << " zdiv " << fpu.fpu_fcw.zdiv;
7908 outs() << " ovrfl " << fpu.fpu_fcw.ovrfl;
7909 outs() << " undfl " << fpu.fpu_fcw.undfl;
7910 outs() << " precis " << fpu.fpu_fcw.precis << "\n";
7911 outs() << "\t\t pc ";
7912 if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B)
7913 outs() << "FP_PREC_24B ";
7914 else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B)
7915 outs() << "FP_PREC_53B ";
7916 else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B)
7917 outs() << "FP_PREC_64B ";
7919 outs() << fpu.fpu_fcw.pc << " ";
7921 if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR)
7922 outs() << "FP_RND_NEAR ";
7923 else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN)
7924 outs() << "FP_RND_DOWN ";
7925 else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP)
7926 outs() << "FP_RND_UP ";
7927 else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP)
7928 outs() << "FP_CHOP ";
7930 outs() << "\t status: invalid " << fpu.fpu_fsw.invalid;
7931 outs() << " denorm " << fpu.fpu_fsw.denorm;
7932 outs() << " zdiv " << fpu.fpu_fsw.zdiv;
7933 outs() << " ovrfl " << fpu.fpu_fsw.ovrfl;
7934 outs() << " undfl " << fpu.fpu_fsw.undfl;
7935 outs() << " precis " << fpu.fpu_fsw.precis;
7936 outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n";
7937 outs() << "\t errsumm " << fpu.fpu_fsw.errsumm;
7938 outs() << " c0 " << fpu.fpu_fsw.c0;
7939 outs() << " c1 " << fpu.fpu_fsw.c1;
7940 outs() << " c2 " << fpu.fpu_fsw.c2;
7941 outs() << " tos " << fpu.fpu_fsw.tos;
7942 outs() << " c3 " << fpu.fpu_fsw.c3;
7943 outs() << " busy " << fpu.fpu_fsw.busy << "\n";
7944 outs() << "\t fpu_ftw " << format("0x%02" PRIx32, fpu.fpu_ftw);
7945 outs() << " fpu_rsrv1 " << format("0x%02" PRIx32, fpu.fpu_rsrv1);
7946 outs() << " fpu_fop " << format("0x%04" PRIx32, fpu.fpu_fop);
7947 outs() << " fpu_ip " << format("0x%08" PRIx32, fpu.fpu_ip) << "\n";
7948 outs() << "\t fpu_cs " << format("0x%04" PRIx32, fpu.fpu_cs);
7949 outs() << " fpu_rsrv2 " << format("0x%04" PRIx32, fpu.fpu_rsrv2);
7950 outs() << " fpu_dp " << format("0x%08" PRIx32, fpu.fpu_dp);
7951 outs() << " fpu_ds " << format("0x%04" PRIx32, fpu.fpu_ds) << "\n";
7952 outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32, fpu.fpu_rsrv3);
7953 outs() << " fpu_mxcsr " << format("0x%08" PRIx32, fpu.fpu_mxcsr);
7954 outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32, fpu.fpu_mxcsrmask);
7956 outs() << "\t fpu_stmm0:\n";
7957 Print_mmst_reg(fpu.fpu_stmm0);
7958 outs() << "\t fpu_stmm1:\n";
7959 Print_mmst_reg(fpu.fpu_stmm1);
7960 outs() << "\t fpu_stmm2:\n";
7961 Print_mmst_reg(fpu.fpu_stmm2);
7962 outs() << "\t fpu_stmm3:\n";
7963 Print_mmst_reg(fpu.fpu_stmm3);
7964 outs() << "\t fpu_stmm4:\n";
7965 Print_mmst_reg(fpu.fpu_stmm4);
7966 outs() << "\t fpu_stmm5:\n";
7967 Print_mmst_reg(fpu.fpu_stmm5);
7968 outs() << "\t fpu_stmm6:\n";
7969 Print_mmst_reg(fpu.fpu_stmm6);
7970 outs() << "\t fpu_stmm7:\n";
7971 Print_mmst_reg(fpu.fpu_stmm7);
7972 outs() << "\t fpu_xmm0:\n";
7973 Print_xmm_reg(fpu.fpu_xmm0);
7974 outs() << "\t fpu_xmm1:\n";
7975 Print_xmm_reg(fpu.fpu_xmm1);
7976 outs() << "\t fpu_xmm2:\n";
7977 Print_xmm_reg(fpu.fpu_xmm2);
7978 outs() << "\t fpu_xmm3:\n";
7979 Print_xmm_reg(fpu.fpu_xmm3);
7980 outs() << "\t fpu_xmm4:\n";
7981 Print_xmm_reg(fpu.fpu_xmm4);
7982 outs() << "\t fpu_xmm5:\n";
7983 Print_xmm_reg(fpu.fpu_xmm5);
7984 outs() << "\t fpu_xmm6:\n";
7985 Print_xmm_reg(fpu.fpu_xmm6);
7986 outs() << "\t fpu_xmm7:\n";
7987 Print_xmm_reg(fpu.fpu_xmm7);
7988 outs() << "\t fpu_xmm8:\n";
7989 Print_xmm_reg(fpu.fpu_xmm8);
7990 outs() << "\t fpu_xmm9:\n";
7991 Print_xmm_reg(fpu.fpu_xmm9);
7992 outs() << "\t fpu_xmm10:\n";
7993 Print_xmm_reg(fpu.fpu_xmm10);
7994 outs() << "\t fpu_xmm11:\n";
7995 Print_xmm_reg(fpu.fpu_xmm11);
7996 outs() << "\t fpu_xmm12:\n";
7997 Print_xmm_reg(fpu.fpu_xmm12);
7998 outs() << "\t fpu_xmm13:\n";
7999 Print_xmm_reg(fpu.fpu_xmm13);
8000 outs() << "\t fpu_xmm14:\n";
8001 Print_xmm_reg(fpu.fpu_xmm14);
8002 outs() << "\t fpu_xmm15:\n";
8003 Print_xmm_reg(fpu.fpu_xmm15);
8004 outs() << "\t fpu_rsrv4:\n";
8005 for (uint32_t f = 0; f < 6; f++) {
8007 for (uint32_t g = 0; g < 16; g++)
8008 outs() << format("%02" PRIx32, fpu.fpu_rsrv4[f * g]) << " ";
8011 outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32, fpu.fpu_reserved1);
8015 static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) {
8016 outs() << "\t trapno " << format("0x%08" PRIx32, exc64.trapno);
8017 outs() << " err " << format("0x%08" PRIx32, exc64.err);
8018 outs() << " faultvaddr " << format("0x%016" PRIx64, exc64.faultvaddr) << "\n";
8021 static void PrintThreadCommand(MachO::thread_command t, const char *Ptr,
8022 bool isLittleEndian, uint32_t cputype) {
8023 if (t.cmd == MachO::LC_THREAD)
8024 outs() << " cmd LC_THREAD\n";
8025 else if (t.cmd == MachO::LC_UNIXTHREAD)
8026 outs() << " cmd LC_UNIXTHREAD\n";
8028 outs() << " cmd " << t.cmd << " (unknown)\n";
8029 outs() << " cmdsize " << t.cmdsize;
8030 if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t))
8031 outs() << " Incorrect size\n";
8035 const char *begin = Ptr + sizeof(struct MachO::thread_command);
8036 const char *end = Ptr + t.cmdsize;
8037 uint32_t flavor, count, left;
8038 if (cputype == MachO::CPU_TYPE_X86_64) {
8039 while (begin < end) {
8040 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8041 memcpy((char *)&flavor, begin, sizeof(uint32_t));
8042 begin += sizeof(uint32_t);
8047 if (isLittleEndian != sys::IsLittleEndianHost)
8048 sys::swapByteOrder(flavor);
8049 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8050 memcpy((char *)&count, begin, sizeof(uint32_t));
8051 begin += sizeof(uint32_t);
8056 if (isLittleEndian != sys::IsLittleEndianHost)
8057 sys::swapByteOrder(count);
8058 if (flavor == MachO::x86_THREAD_STATE64) {
8059 outs() << " flavor x86_THREAD_STATE64\n";
8060 if (count == MachO::x86_THREAD_STATE64_COUNT)
8061 outs() << " count x86_THREAD_STATE64_COUNT\n";
8063 outs() << " count " << count
8064 << " (not x86_THREAD_STATE64_COUNT)\n";
8065 MachO::x86_thread_state64_t cpu64;
8067 if (left >= sizeof(MachO::x86_thread_state64_t)) {
8068 memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t));
8069 begin += sizeof(MachO::x86_thread_state64_t);
8071 memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t));
8072 memcpy(&cpu64, begin, left);
8075 if (isLittleEndian != sys::IsLittleEndianHost)
8077 Print_x86_thread_state64_t(cpu64);
8078 } else if (flavor == MachO::x86_THREAD_STATE) {
8079 outs() << " flavor x86_THREAD_STATE\n";
8080 if (count == MachO::x86_THREAD_STATE_COUNT)
8081 outs() << " count x86_THREAD_STATE_COUNT\n";
8083 outs() << " count " << count
8084 << " (not x86_THREAD_STATE_COUNT)\n";
8085 struct MachO::x86_thread_state_t ts;
8087 if (left >= sizeof(MachO::x86_thread_state_t)) {
8088 memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t));
8089 begin += sizeof(MachO::x86_thread_state_t);
8091 memset(&ts, '\0', sizeof(MachO::x86_thread_state_t));
8092 memcpy(&ts, begin, left);
8095 if (isLittleEndian != sys::IsLittleEndianHost)
8097 if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) {
8098 outs() << "\t tsh.flavor x86_THREAD_STATE64 ";
8099 if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT)
8100 outs() << "tsh.count x86_THREAD_STATE64_COUNT\n";
8102 outs() << "tsh.count " << ts.tsh.count
8103 << " (not x86_THREAD_STATE64_COUNT\n";
8104 Print_x86_thread_state64_t(ts.uts.ts64);
8106 outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count "
8107 << ts.tsh.count << "\n";
8109 } else if (flavor == MachO::x86_FLOAT_STATE) {
8110 outs() << " flavor x86_FLOAT_STATE\n";
8111 if (count == MachO::x86_FLOAT_STATE_COUNT)
8112 outs() << " count x86_FLOAT_STATE_COUNT\n";
8114 outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n";
8115 struct MachO::x86_float_state_t fs;
8117 if (left >= sizeof(MachO::x86_float_state_t)) {
8118 memcpy(&fs, begin, sizeof(MachO::x86_float_state_t));
8119 begin += sizeof(MachO::x86_float_state_t);
8121 memset(&fs, '\0', sizeof(MachO::x86_float_state_t));
8122 memcpy(&fs, begin, left);
8125 if (isLittleEndian != sys::IsLittleEndianHost)
8127 if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) {
8128 outs() << "\t fsh.flavor x86_FLOAT_STATE64 ";
8129 if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT)
8130 outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n";
8132 outs() << "fsh.count " << fs.fsh.count
8133 << " (not x86_FLOAT_STATE64_COUNT\n";
8134 Print_x86_float_state_t(fs.ufs.fs64);
8136 outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count "
8137 << fs.fsh.count << "\n";
8139 } else if (flavor == MachO::x86_EXCEPTION_STATE) {
8140 outs() << " flavor x86_EXCEPTION_STATE\n";
8141 if (count == MachO::x86_EXCEPTION_STATE_COUNT)
8142 outs() << " count x86_EXCEPTION_STATE_COUNT\n";
8144 outs() << " count " << count
8145 << " (not x86_EXCEPTION_STATE_COUNT)\n";
8146 struct MachO::x86_exception_state_t es;
8148 if (left >= sizeof(MachO::x86_exception_state_t)) {
8149 memcpy(&es, begin, sizeof(MachO::x86_exception_state_t));
8150 begin += sizeof(MachO::x86_exception_state_t);
8152 memset(&es, '\0', sizeof(MachO::x86_exception_state_t));
8153 memcpy(&es, begin, left);
8156 if (isLittleEndian != sys::IsLittleEndianHost)
8158 if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) {
8159 outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n";
8160 if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT)
8161 outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n";
8163 outs() << "\t esh.count " << es.esh.count
8164 << " (not x86_EXCEPTION_STATE64_COUNT\n";
8165 Print_x86_exception_state_t(es.ues.es64);
8167 outs() << "\t esh.flavor " << es.esh.flavor << " esh.count "
8168 << es.esh.count << "\n";
8171 outs() << " flavor " << flavor << " (unknown)\n";
8172 outs() << " count " << count << "\n";
8173 outs() << " state (unknown)\n";
8174 begin += count * sizeof(uint32_t);
8178 while (begin < end) {
8179 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8180 memcpy((char *)&flavor, begin, sizeof(uint32_t));
8181 begin += sizeof(uint32_t);
8186 if (isLittleEndian != sys::IsLittleEndianHost)
8187 sys::swapByteOrder(flavor);
8188 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8189 memcpy((char *)&count, begin, sizeof(uint32_t));
8190 begin += sizeof(uint32_t);
8195 if (isLittleEndian != sys::IsLittleEndianHost)
8196 sys::swapByteOrder(count);
8197 outs() << " flavor " << flavor << "\n";
8198 outs() << " count " << count << "\n";
8199 outs() << " state (Unknown cputype/cpusubtype)\n";
8200 begin += count * sizeof(uint32_t);
8205 static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) {
8206 if (dl.cmd == MachO::LC_ID_DYLIB)
8207 outs() << " cmd LC_ID_DYLIB\n";
8208 else if (dl.cmd == MachO::LC_LOAD_DYLIB)
8209 outs() << " cmd LC_LOAD_DYLIB\n";
8210 else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB)
8211 outs() << " cmd LC_LOAD_WEAK_DYLIB\n";
8212 else if (dl.cmd == MachO::LC_REEXPORT_DYLIB)
8213 outs() << " cmd LC_REEXPORT_DYLIB\n";
8214 else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB)
8215 outs() << " cmd LC_LAZY_LOAD_DYLIB\n";
8216 else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
8217 outs() << " cmd LC_LOAD_UPWARD_DYLIB\n";
8219 outs() << " cmd " << dl.cmd << " (unknown)\n";
8220 outs() << " cmdsize " << dl.cmdsize;
8221 if (dl.cmdsize < sizeof(struct MachO::dylib_command))
8222 outs() << " Incorrect size\n";
8225 if (dl.dylib.name < dl.cmdsize) {
8226 const char *P = (const char *)(Ptr) + dl.dylib.name;
8227 outs() << " name " << P << " (offset " << dl.dylib.name << ")\n";
8229 outs() << " name ?(bad offset " << dl.dylib.name << ")\n";
8231 outs() << " time stamp " << dl.dylib.timestamp << " ";
8232 time_t t = dl.dylib.timestamp;
8233 outs() << ctime(&t);
8234 outs() << " current version ";
8235 if (dl.dylib.current_version == 0xffffffff)
8238 outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "."
8239 << ((dl.dylib.current_version >> 8) & 0xff) << "."
8240 << (dl.dylib.current_version & 0xff) << "\n";
8241 outs() << "compatibility version ";
8242 if (dl.dylib.compatibility_version == 0xffffffff)
8245 outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
8246 << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
8247 << (dl.dylib.compatibility_version & 0xff) << "\n";
8250 static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld,
8251 uint32_t object_size) {
8252 if (ld.cmd == MachO::LC_CODE_SIGNATURE)
8253 outs() << " cmd LC_FUNCTION_STARTS\n";
8254 else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO)
8255 outs() << " cmd LC_SEGMENT_SPLIT_INFO\n";
8256 else if (ld.cmd == MachO::LC_FUNCTION_STARTS)
8257 outs() << " cmd LC_FUNCTION_STARTS\n";
8258 else if (ld.cmd == MachO::LC_DATA_IN_CODE)
8259 outs() << " cmd LC_DATA_IN_CODE\n";
8260 else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS)
8261 outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n";
8262 else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT)
8263 outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n";
8265 outs() << " cmd " << ld.cmd << " (?)\n";
8266 outs() << " cmdsize " << ld.cmdsize;
8267 if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command))
8268 outs() << " Incorrect size\n";
8271 outs() << " dataoff " << ld.dataoff;
8272 if (ld.dataoff > object_size)
8273 outs() << " (past end of file)\n";
8276 outs() << " datasize " << ld.datasize;
8277 uint64_t big_size = ld.dataoff;
8278 big_size += ld.datasize;
8279 if (big_size > object_size)
8280 outs() << " (past end of file)\n";
8285 static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype,
8286 uint32_t cputype, bool verbose) {
8287 StringRef Buf = Obj->getData();
8289 for (const auto &Command : Obj->load_commands()) {
8290 outs() << "Load command " << Index++ << "\n";
8291 if (Command.C.cmd == MachO::LC_SEGMENT) {
8292 MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command);
8293 const char *sg_segname = SLC.segname;
8294 PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr,
8295 SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot,
8296 SLC.initprot, SLC.nsects, SLC.flags, Buf.size(),
8298 for (unsigned j = 0; j < SLC.nsects; j++) {
8299 MachO::section S = Obj->getSection(Command, j);
8300 PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align,
8301 S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2,
8302 SLC.cmd, sg_segname, filetype, Buf.size(), verbose);
8304 } else if (Command.C.cmd == MachO::LC_SEGMENT_64) {
8305 MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command);
8306 const char *sg_segname = SLC_64.segname;
8307 PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname,
8308 SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff,
8309 SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot,
8310 SLC_64.nsects, SLC_64.flags, Buf.size(), verbose);
8311 for (unsigned j = 0; j < SLC_64.nsects; j++) {
8312 MachO::section_64 S_64 = Obj->getSection64(Command, j);
8313 PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size,
8314 S_64.offset, S_64.align, S_64.reloff, S_64.nreloc,
8315 S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd,
8316 sg_segname, filetype, Buf.size(), verbose);
8318 } else if (Command.C.cmd == MachO::LC_SYMTAB) {
8319 MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
8320 PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size());
8321 } else if (Command.C.cmd == MachO::LC_DYSYMTAB) {
8322 MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand();
8323 MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
8324 PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(),
8326 } else if (Command.C.cmd == MachO::LC_DYLD_INFO ||
8327 Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) {
8328 MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command);
8329 PrintDyldInfoLoadCommand(DyldInfo, Buf.size());
8330 } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER ||
8331 Command.C.cmd == MachO::LC_ID_DYLINKER ||
8332 Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) {
8333 MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command);
8334 PrintDyldLoadCommand(Dyld, Command.Ptr);
8335 } else if (Command.C.cmd == MachO::LC_UUID) {
8336 MachO::uuid_command Uuid = Obj->getUuidCommand(Command);
8337 PrintUuidLoadCommand(Uuid);
8338 } else if (Command.C.cmd == MachO::LC_RPATH) {
8339 MachO::rpath_command Rpath = Obj->getRpathCommand(Command);
8340 PrintRpathLoadCommand(Rpath, Command.Ptr);
8341 } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX ||
8342 Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS) {
8343 MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command);
8344 PrintVersionMinLoadCommand(Vd);
8345 } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) {
8346 MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command);
8347 PrintSourceVersionCommand(Sd);
8348 } else if (Command.C.cmd == MachO::LC_MAIN) {
8349 MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command);
8350 PrintEntryPointCommand(Ep);
8351 } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) {
8352 MachO::encryption_info_command Ei =
8353 Obj->getEncryptionInfoCommand(Command);
8354 PrintEncryptionInfoCommand(Ei, Buf.size());
8355 } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) {
8356 MachO::encryption_info_command_64 Ei =
8357 Obj->getEncryptionInfoCommand64(Command);
8358 PrintEncryptionInfoCommand64(Ei, Buf.size());
8359 } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) {
8360 MachO::linker_option_command Lo =
8361 Obj->getLinkerOptionLoadCommand(Command);
8362 PrintLinkerOptionCommand(Lo, Command.Ptr);
8363 } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) {
8364 MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command);
8365 PrintSubFrameworkCommand(Sf, Command.Ptr);
8366 } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) {
8367 MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command);
8368 PrintSubUmbrellaCommand(Sf, Command.Ptr);
8369 } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) {
8370 MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command);
8371 PrintSubLibraryCommand(Sl, Command.Ptr);
8372 } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) {
8373 MachO::sub_client_command Sc = Obj->getSubClientCommand(Command);
8374 PrintSubClientCommand(Sc, Command.Ptr);
8375 } else if (Command.C.cmd == MachO::LC_ROUTINES) {
8376 MachO::routines_command Rc = Obj->getRoutinesCommand(Command);
8377 PrintRoutinesCommand(Rc);
8378 } else if (Command.C.cmd == MachO::LC_ROUTINES_64) {
8379 MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command);
8380 PrintRoutinesCommand64(Rc);
8381 } else if (Command.C.cmd == MachO::LC_THREAD ||
8382 Command.C.cmd == MachO::LC_UNIXTHREAD) {
8383 MachO::thread_command Tc = Obj->getThreadCommand(Command);
8384 PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype);
8385 } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB ||
8386 Command.C.cmd == MachO::LC_ID_DYLIB ||
8387 Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
8388 Command.C.cmd == MachO::LC_REEXPORT_DYLIB ||
8389 Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
8390 Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) {
8391 MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command);
8392 PrintDylibCommand(Dl, Command.Ptr);
8393 } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE ||
8394 Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO ||
8395 Command.C.cmd == MachO::LC_FUNCTION_STARTS ||
8396 Command.C.cmd == MachO::LC_DATA_IN_CODE ||
8397 Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS ||
8398 Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) {
8399 MachO::linkedit_data_command Ld =
8400 Obj->getLinkeditDataLoadCommand(Command);
8401 PrintLinkEditDataCommand(Ld, Buf.size());
8403 outs() << " cmd ?(" << format("0x%08" PRIx32, Command.C.cmd)
8405 outs() << " cmdsize " << Command.C.cmdsize << "\n";
8406 // TODO: get and print the raw bytes of the load command.
8408 // TODO: print all the other kinds of load commands.
8412 static void getAndPrintMachHeader(const MachOObjectFile *Obj,
8413 uint32_t &filetype, uint32_t &cputype,
8415 if (Obj->is64Bit()) {
8416 MachO::mach_header_64 H_64;
8417 H_64 = Obj->getHeader64();
8418 PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype,
8419 H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose);
8420 filetype = H_64.filetype;
8421 cputype = H_64.cputype;
8423 MachO::mach_header H;
8424 H = Obj->getHeader();
8425 PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds,
8426 H.sizeofcmds, H.flags, verbose);
8427 filetype = H.filetype;
8428 cputype = H.cputype;
8432 void llvm::printMachOFileHeader(const object::ObjectFile *Obj) {
8433 const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
8434 uint32_t filetype = 0;
8435 uint32_t cputype = 0;
8436 getAndPrintMachHeader(file, filetype, cputype, !NonVerbose);
8437 PrintLoadCommands(file, filetype, cputype, !NonVerbose);
8440 //===----------------------------------------------------------------------===//
8441 // export trie dumping
8442 //===----------------------------------------------------------------------===//
8444 void llvm::printMachOExportsTrie(const object::MachOObjectFile *Obj) {
8445 for (const llvm::object::ExportEntry &Entry : Obj->exports()) {
8446 uint64_t Flags = Entry.flags();
8447 bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT);
8448 bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION);
8449 bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
8450 MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL);
8451 bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
8452 MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE);
8453 bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER);
8455 outs() << "[re-export] ";
8457 outs() << format("0x%08llX ",
8458 Entry.address()); // FIXME:add in base address
8459 outs() << Entry.name();
8460 if (WeakDef || ThreadLocal || Resolver || Abs) {
8461 bool NeedsComma = false;
8464 outs() << "weak_def";
8470 outs() << "per-thread";
8476 outs() << "absolute";
8482 outs() << format("resolver=0x%08llX", Entry.other());
8488 StringRef DylibName = "unknown";
8489 int Ordinal = Entry.other() - 1;
8490 Obj->getLibraryShortNameByIndex(Ordinal, DylibName);
8491 if (Entry.otherName().empty())
8492 outs() << " (from " << DylibName << ")";
8494 outs() << " (" << Entry.otherName() << " from " << DylibName << ")";
8500 //===----------------------------------------------------------------------===//
8501 // rebase table dumping
8502 //===----------------------------------------------------------------------===//
8507 SegInfo(const object::MachOObjectFile *Obj);
8509 StringRef segmentName(uint32_t SegIndex);
8510 StringRef sectionName(uint32_t SegIndex, uint64_t SegOffset);
8511 uint64_t address(uint32_t SegIndex, uint64_t SegOffset);
8512 bool isValidSegIndexAndOffset(uint32_t SegIndex, uint64_t SegOffset);
8515 struct SectionInfo {
8518 StringRef SectionName;
8519 StringRef SegmentName;
8520 uint64_t OffsetInSegment;
8521 uint64_t SegmentStartAddress;
8522 uint32_t SegmentIndex;
8524 const SectionInfo &findSection(uint32_t SegIndex, uint64_t SegOffset);
8525 SmallVector<SectionInfo, 32> Sections;
8529 SegInfo::SegInfo(const object::MachOObjectFile *Obj) {
8530 // Build table of sections so segIndex/offset pairs can be translated.
8531 uint32_t CurSegIndex = Obj->hasPageZeroSegment() ? 1 : 0;
8532 StringRef CurSegName;
8533 uint64_t CurSegAddress;
8534 for (const SectionRef &Section : Obj->sections()) {
8536 error(Section.getName(Info.SectionName));
8537 Info.Address = Section.getAddress();
8538 Info.Size = Section.getSize();
8540 Obj->getSectionFinalSegmentName(Section.getRawDataRefImpl());
8541 if (!Info.SegmentName.equals(CurSegName)) {
8543 CurSegName = Info.SegmentName;
8544 CurSegAddress = Info.Address;
8546 Info.SegmentIndex = CurSegIndex - 1;
8547 Info.OffsetInSegment = Info.Address - CurSegAddress;
8548 Info.SegmentStartAddress = CurSegAddress;
8549 Sections.push_back(Info);
8553 StringRef SegInfo::segmentName(uint32_t SegIndex) {
8554 for (const SectionInfo &SI : Sections) {
8555 if (SI.SegmentIndex == SegIndex)
8556 return SI.SegmentName;
8558 llvm_unreachable("invalid segIndex");
8561 bool SegInfo::isValidSegIndexAndOffset(uint32_t SegIndex,
8562 uint64_t OffsetInSeg) {
8563 for (const SectionInfo &SI : Sections) {
8564 if (SI.SegmentIndex != SegIndex)
8566 if (SI.OffsetInSegment > OffsetInSeg)
8568 if (OffsetInSeg >= (SI.OffsetInSegment + SI.Size))
8575 const SegInfo::SectionInfo &SegInfo::findSection(uint32_t SegIndex,
8576 uint64_t OffsetInSeg) {
8577 for (const SectionInfo &SI : Sections) {
8578 if (SI.SegmentIndex != SegIndex)
8580 if (SI.OffsetInSegment > OffsetInSeg)
8582 if (OffsetInSeg >= (SI.OffsetInSegment + SI.Size))
8586 llvm_unreachable("segIndex and offset not in any section");
8589 StringRef SegInfo::sectionName(uint32_t SegIndex, uint64_t OffsetInSeg) {
8590 return findSection(SegIndex, OffsetInSeg).SectionName;
8593 uint64_t SegInfo::address(uint32_t SegIndex, uint64_t OffsetInSeg) {
8594 const SectionInfo &SI = findSection(SegIndex, OffsetInSeg);
8595 return SI.SegmentStartAddress + OffsetInSeg;
8598 void llvm::printMachORebaseTable(const object::MachOObjectFile *Obj) {
8599 // Build table of sections so names can used in final output.
8600 SegInfo sectionTable(Obj);
8602 outs() << "segment section address type\n";
8603 for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable()) {
8604 uint32_t SegIndex = Entry.segmentIndex();
8605 uint64_t OffsetInSeg = Entry.segmentOffset();
8606 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8607 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8608 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8610 // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer
8611 outs() << format("%-8s %-18s 0x%08" PRIX64 " %s\n",
8612 SegmentName.str().c_str(), SectionName.str().c_str(),
8613 Address, Entry.typeName().str().c_str());
8617 static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) {
8618 StringRef DylibName;
8620 case MachO::BIND_SPECIAL_DYLIB_SELF:
8621 return "this-image";
8622 case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE:
8623 return "main-executable";
8624 case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP:
8625 return "flat-namespace";
8628 std::error_code EC =
8629 Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName);
8631 return "<<bad library ordinal>>";
8635 return "<<unknown special ordinal>>";
8638 //===----------------------------------------------------------------------===//
8639 // bind table dumping
8640 //===----------------------------------------------------------------------===//
8642 void llvm::printMachOBindTable(const object::MachOObjectFile *Obj) {
8643 // Build table of sections so names can used in final output.
8644 SegInfo sectionTable(Obj);
8646 outs() << "segment section address type "
8647 "addend dylib symbol\n";
8648 for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable()) {
8649 uint32_t SegIndex = Entry.segmentIndex();
8650 uint64_t OffsetInSeg = Entry.segmentOffset();
8651 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8652 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8653 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8655 // Table lines look like:
8656 // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard
8658 if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT)
8659 Attr = " (weak_import)";
8660 outs() << left_justify(SegmentName, 8) << " "
8661 << left_justify(SectionName, 18) << " "
8662 << format_hex(Address, 10, true) << " "
8663 << left_justify(Entry.typeName(), 8) << " "
8664 << format_decimal(Entry.addend(), 8) << " "
8665 << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
8666 << Entry.symbolName() << Attr << "\n";
8670 //===----------------------------------------------------------------------===//
8671 // lazy bind table dumping
8672 //===----------------------------------------------------------------------===//
8674 void llvm::printMachOLazyBindTable(const object::MachOObjectFile *Obj) {
8675 // Build table of sections so names can used in final output.
8676 SegInfo sectionTable(Obj);
8678 outs() << "segment section address "
8680 for (const llvm::object::MachOBindEntry &Entry : Obj->lazyBindTable()) {
8681 uint32_t SegIndex = Entry.segmentIndex();
8682 uint64_t OffsetInSeg = Entry.segmentOffset();
8683 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8684 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8685 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8687 // Table lines look like:
8688 // __DATA __got 0x00012010 libSystem ___stack_chk_guard
8689 outs() << left_justify(SegmentName, 8) << " "
8690 << left_justify(SectionName, 18) << " "
8691 << format_hex(Address, 10, true) << " "
8692 << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
8693 << Entry.symbolName() << "\n";
8697 //===----------------------------------------------------------------------===//
8698 // weak bind table dumping
8699 //===----------------------------------------------------------------------===//
8701 void llvm::printMachOWeakBindTable(const object::MachOObjectFile *Obj) {
8702 // Build table of sections so names can used in final output.
8703 SegInfo sectionTable(Obj);
8705 outs() << "segment section address "
8706 "type addend symbol\n";
8707 for (const llvm::object::MachOBindEntry &Entry : Obj->weakBindTable()) {
8708 // Strong symbols don't have a location to update.
8709 if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) {
8710 outs() << " strong "
8711 << Entry.symbolName() << "\n";
8714 uint32_t SegIndex = Entry.segmentIndex();
8715 uint64_t OffsetInSeg = Entry.segmentOffset();
8716 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8717 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8718 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8720 // Table lines look like:
8721 // __DATA __data 0x00001000 pointer 0 _foo
8722 outs() << left_justify(SegmentName, 8) << " "
8723 << left_justify(SectionName, 18) << " "
8724 << format_hex(Address, 10, true) << " "
8725 << left_justify(Entry.typeName(), 8) << " "
8726 << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName()
8731 // get_dyld_bind_info_symbolname() is used for disassembly and passed an
8732 // address, ReferenceValue, in the Mach-O file and looks in the dyld bind
8733 // information for that address. If the address is found its binding symbol
8734 // name is returned. If not nullptr is returned.
8735 static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
8736 struct DisassembleInfo *info) {
8737 if (info->bindtable == nullptr) {
8738 info->bindtable = new (BindTable);
8739 SegInfo sectionTable(info->O);
8740 for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable()) {
8741 uint32_t SegIndex = Entry.segmentIndex();
8742 uint64_t OffsetInSeg = Entry.segmentOffset();
8743 if (!sectionTable.isValidSegIndexAndOffset(SegIndex, OffsetInSeg))
8745 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8746 const char *SymbolName = nullptr;
8747 StringRef name = Entry.symbolName();
8749 SymbolName = name.data();
8750 info->bindtable->push_back(std::make_pair(Address, SymbolName));
8753 for (bind_table_iterator BI = info->bindtable->begin(),
8754 BE = info->bindtable->end();
8756 uint64_t Address = BI->first;
8757 if (ReferenceValue == Address) {
8758 const char *SymbolName = BI->second;