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 if (A->hasSymbolTable()) {
1456 Archive::child_iterator S = A->getSymbolTableChild();
1457 Archive::Child C = *S;
1458 printArchiveChild(C, verbose, print_offset);
1460 for (Archive::child_iterator I = A->child_begin(), E = A->child_end(); I != E;
1462 Archive::Child C = *I;
1463 printArchiveChild(C, verbose, print_offset);
1467 // ParseInputMachO() parses the named Mach-O file in Filename and handles the
1468 // -arch flags selecting just those slices as specified by them and also parses
1469 // archive files. Then for each individual Mach-O file ProcessMachO() is
1470 // called to process the file based on the command line options.
1471 void llvm::ParseInputMachO(StringRef Filename) {
1472 // Check for -arch all and verifiy the -arch flags are valid.
1473 for (unsigned i = 0; i < ArchFlags.size(); ++i) {
1474 if (ArchFlags[i] == "all") {
1477 if (!MachOObjectFile::isValidArch(ArchFlags[i])) {
1478 errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] +
1479 "'for the -arch option\n";
1485 // Attempt to open the binary.
1486 ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
1487 if (std::error_code EC = BinaryOrErr.getError()) {
1488 errs() << "llvm-objdump: '" << Filename << "': " << EC.message() << ".\n";
1491 Binary &Bin = *BinaryOrErr.get().getBinary();
1493 if (Archive *A = dyn_cast<Archive>(&Bin)) {
1494 outs() << "Archive : " << Filename << "\n";
1496 printArchiveHeaders(A, !NonVerbose, ArchiveMemberOffsets);
1497 for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
1499 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = I->getAsBinary();
1500 if (ChildOrErr.getError())
1502 if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
1503 if (!checkMachOAndArchFlags(O, Filename))
1505 ProcessMachO(Filename, O, O->getFileName());
1510 if (UniversalHeaders) {
1511 if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin))
1512 printMachOUniversalHeaders(UB, !NonVerbose);
1514 if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
1515 // If we have a list of architecture flags specified dump only those.
1516 if (!ArchAll && ArchFlags.size() != 0) {
1517 // Look for a slice in the universal binary that matches each ArchFlag.
1519 for (unsigned i = 0; i < ArchFlags.size(); ++i) {
1521 for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
1522 E = UB->end_objects();
1524 if (ArchFlags[i] == I->getArchTypeName()) {
1526 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
1527 I->getAsObjectFile();
1528 std::string ArchitectureName = "";
1529 if (ArchFlags.size() > 1)
1530 ArchitectureName = I->getArchTypeName();
1532 ObjectFile &O = *ObjOrErr.get();
1533 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
1534 ProcessMachO(Filename, MachOOF, "", ArchitectureName);
1535 } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
1536 I->getAsArchive()) {
1537 std::unique_ptr<Archive> &A = *AOrErr;
1538 outs() << "Archive : " << Filename;
1539 if (!ArchitectureName.empty())
1540 outs() << " (architecture " << ArchitectureName << ")";
1543 printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
1544 for (Archive::child_iterator AI = A->child_begin(),
1545 AE = A->child_end();
1547 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
1548 if (ChildOrErr.getError())
1550 if (MachOObjectFile *O =
1551 dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
1552 ProcessMachO(Filename, O, O->getFileName(), ArchitectureName);
1558 errs() << "llvm-objdump: file: " + Filename + " does not contain "
1559 << "architecture: " + ArchFlags[i] + "\n";
1565 // No architecture flags were specified so if this contains a slice that
1566 // matches the host architecture dump only that.
1568 for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
1569 E = UB->end_objects();
1571 if (MachOObjectFile::getHostArch().getArchName() ==
1572 I->getArchTypeName()) {
1573 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
1574 std::string ArchiveName;
1575 ArchiveName.clear();
1577 ObjectFile &O = *ObjOrErr.get();
1578 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O))
1579 ProcessMachO(Filename, MachOOF);
1580 } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
1581 I->getAsArchive()) {
1582 std::unique_ptr<Archive> &A = *AOrErr;
1583 outs() << "Archive : " << Filename << "\n";
1585 printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
1586 for (Archive::child_iterator AI = A->child_begin(),
1587 AE = A->child_end();
1589 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
1590 if (ChildOrErr.getError())
1592 if (MachOObjectFile *O =
1593 dyn_cast<MachOObjectFile>(&*ChildOrErr.get()))
1594 ProcessMachO(Filename, O, O->getFileName());
1601 // Either all architectures have been specified or none have been specified
1602 // and this does not contain the host architecture so dump all the slices.
1603 bool moreThanOneArch = UB->getNumberOfObjects() > 1;
1604 for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
1605 E = UB->end_objects();
1607 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
1608 std::string ArchitectureName = "";
1609 if (moreThanOneArch)
1610 ArchitectureName = I->getArchTypeName();
1612 ObjectFile &Obj = *ObjOrErr.get();
1613 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj))
1614 ProcessMachO(Filename, MachOOF, "", ArchitectureName);
1615 } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) {
1616 std::unique_ptr<Archive> &A = *AOrErr;
1617 outs() << "Archive : " << Filename;
1618 if (!ArchitectureName.empty())
1619 outs() << " (architecture " << ArchitectureName << ")";
1622 printArchiveHeaders(A.get(), !NonVerbose, ArchiveMemberOffsets);
1623 for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
1625 ErrorOr<std::unique_ptr<Binary>> ChildOrErr = AI->getAsBinary();
1626 if (ChildOrErr.getError())
1628 if (MachOObjectFile *O =
1629 dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) {
1630 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O))
1631 ProcessMachO(Filename, MachOOF, MachOOF->getFileName(),
1639 if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) {
1640 if (!checkMachOAndArchFlags(O, Filename))
1642 if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) {
1643 ProcessMachO(Filename, MachOOF);
1645 errs() << "llvm-objdump: '" << Filename << "': "
1646 << "Object is not a Mach-O file type.\n";
1648 errs() << "llvm-objdump: '" << Filename << "': "
1649 << "Unrecognized file type.\n";
1652 typedef std::pair<uint64_t, const char *> BindInfoEntry;
1653 typedef std::vector<BindInfoEntry> BindTable;
1654 typedef BindTable::iterator bind_table_iterator;
1656 // The block of info used by the Symbolizer call backs.
1657 struct DisassembleInfo {
1661 SymbolAddressMap *AddrMap;
1662 std::vector<SectionRef> *Sections;
1663 const char *class_name;
1664 const char *selector_name;
1666 char *demangled_name;
1669 BindTable *bindtable;
1673 // SymbolizerGetOpInfo() is the operand information call back function.
1674 // This is called to get the symbolic information for operand(s) of an
1675 // instruction when it is being done. This routine does this from
1676 // the relocation information, symbol table, etc. That block of information
1677 // is a pointer to the struct DisassembleInfo that was passed when the
1678 // disassembler context was created and passed to back to here when
1679 // called back by the disassembler for instruction operands that could have
1680 // relocation information. The address of the instruction containing operand is
1681 // at the Pc parameter. The immediate value the operand has is passed in
1682 // op_info->Value and is at Offset past the start of the instruction and has a
1683 // byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the
1684 // LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol
1685 // names and addends of the symbolic expression to add for the operand. The
1686 // value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic
1687 // information is returned then this function returns 1 else it returns 0.
1688 static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset,
1689 uint64_t Size, int TagType, void *TagBuf) {
1690 struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo;
1691 struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf;
1692 uint64_t value = op_info->Value;
1694 // Make sure all fields returned are zero if we don't set them.
1695 memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1));
1696 op_info->Value = value;
1698 // If the TagType is not the value 1 which it code knows about or if no
1699 // verbose symbolic information is wanted then just return 0, indicating no
1700 // information is being returned.
1701 if (TagType != 1 || !info->verbose)
1704 unsigned int Arch = info->O->getArch();
1705 if (Arch == Triple::x86) {
1706 if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
1708 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1710 // Search the external relocation entries of a fully linked image
1711 // (if any) for an entry that matches this segment offset.
1712 // uint32_t seg_offset = (Pc + Offset);
1715 // In MH_OBJECT filetypes search the section's relocation entries (if any)
1716 // for an entry for this section offset.
1717 uint32_t sect_addr = info->S.getAddress();
1718 uint32_t sect_offset = (Pc + Offset) - sect_addr;
1719 bool reloc_found = false;
1721 MachO::any_relocation_info RE;
1722 bool isExtern = false;
1724 bool r_scattered = false;
1725 uint32_t r_value, pair_r_value, r_type;
1726 for (const RelocationRef &Reloc : info->S.relocations()) {
1727 uint64_t RelocOffset = Reloc.getOffset();
1728 if (RelocOffset == sect_offset) {
1729 Rel = Reloc.getRawDataRefImpl();
1730 RE = info->O->getRelocation(Rel);
1731 r_type = info->O->getAnyRelocationType(RE);
1732 r_scattered = info->O->isRelocationScattered(RE);
1734 r_value = info->O->getScatteredRelocationValue(RE);
1735 if (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
1736 r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) {
1737 DataRefImpl RelNext = Rel;
1738 info->O->moveRelocationNext(RelNext);
1739 MachO::any_relocation_info RENext;
1740 RENext = info->O->getRelocation(RelNext);
1741 if (info->O->isRelocationScattered(RENext))
1742 pair_r_value = info->O->getScatteredRelocationValue(RENext);
1747 isExtern = info->O->getPlainRelocationExternal(RE);
1749 symbol_iterator RelocSym = Reloc.getSymbol();
1757 if (reloc_found && isExtern) {
1758 ErrorOr<StringRef> SymName = Symbol.getName();
1759 if (std::error_code EC = SymName.getError())
1760 report_fatal_error(EC.message());
1761 const char *name = SymName->data();
1762 op_info->AddSymbol.Present = 1;
1763 op_info->AddSymbol.Name = name;
1764 // For i386 extern relocation entries the value in the instruction is
1765 // the offset from the symbol, and value is already set in op_info->Value.
1768 if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF ||
1769 r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) {
1770 const char *add = GuessSymbolName(r_value, info->AddrMap);
1771 const char *sub = GuessSymbolName(pair_r_value, info->AddrMap);
1772 uint32_t offset = value - (r_value - pair_r_value);
1773 op_info->AddSymbol.Present = 1;
1775 op_info->AddSymbol.Name = add;
1777 op_info->AddSymbol.Value = r_value;
1778 op_info->SubtractSymbol.Present = 1;
1780 op_info->SubtractSymbol.Name = sub;
1782 op_info->SubtractSymbol.Value = pair_r_value;
1783 op_info->Value = offset;
1788 if (Arch == Triple::x86_64) {
1789 if (Size != 1 && Size != 2 && Size != 4 && Size != 0)
1791 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1793 // Search the external relocation entries of a fully linked image
1794 // (if any) for an entry that matches this segment offset.
1795 // uint64_t seg_offset = (Pc + Offset);
1798 // In MH_OBJECT filetypes search the section's relocation entries (if any)
1799 // for an entry for this section offset.
1800 uint64_t sect_addr = info->S.getAddress();
1801 uint64_t sect_offset = (Pc + Offset) - sect_addr;
1802 bool reloc_found = false;
1804 MachO::any_relocation_info RE;
1805 bool isExtern = false;
1807 for (const RelocationRef &Reloc : info->S.relocations()) {
1808 uint64_t RelocOffset = Reloc.getOffset();
1809 if (RelocOffset == sect_offset) {
1810 Rel = Reloc.getRawDataRefImpl();
1811 RE = info->O->getRelocation(Rel);
1812 // NOTE: Scattered relocations don't exist on x86_64.
1813 isExtern = info->O->getPlainRelocationExternal(RE);
1815 symbol_iterator RelocSym = Reloc.getSymbol();
1822 if (reloc_found && isExtern) {
1823 // The Value passed in will be adjusted by the Pc if the instruction
1824 // adds the Pc. But for x86_64 external relocation entries the Value
1825 // is the offset from the external symbol.
1826 if (info->O->getAnyRelocationPCRel(RE))
1827 op_info->Value -= Pc + Offset + Size;
1828 ErrorOr<StringRef> SymName = Symbol.getName();
1829 if (std::error_code EC = SymName.getError())
1830 report_fatal_error(EC.message());
1831 const char *name = SymName->data();
1832 unsigned Type = info->O->getAnyRelocationType(RE);
1833 if (Type == MachO::X86_64_RELOC_SUBTRACTOR) {
1834 DataRefImpl RelNext = Rel;
1835 info->O->moveRelocationNext(RelNext);
1836 MachO::any_relocation_info RENext = info->O->getRelocation(RelNext);
1837 unsigned TypeNext = info->O->getAnyRelocationType(RENext);
1838 bool isExternNext = info->O->getPlainRelocationExternal(RENext);
1839 unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext);
1840 if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) {
1841 op_info->SubtractSymbol.Present = 1;
1842 op_info->SubtractSymbol.Name = name;
1843 symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum);
1844 Symbol = *RelocSymNext;
1845 ErrorOr<StringRef> SymNameNext = Symbol.getName();
1846 if (std::error_code EC = SymNameNext.getError())
1847 report_fatal_error(EC.message());
1848 name = SymNameNext->data();
1851 // TODO: add the VariantKinds to op_info->VariantKind for relocation types
1852 // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT.
1853 op_info->AddSymbol.Present = 1;
1854 op_info->AddSymbol.Name = name;
1859 if (Arch == Triple::arm) {
1860 if (Offset != 0 || (Size != 4 && Size != 2))
1862 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
1864 // Search the external relocation entries of a fully linked image
1865 // (if any) for an entry that matches this segment offset.
1866 // uint32_t seg_offset = (Pc + Offset);
1869 // In MH_OBJECT filetypes search the section's relocation entries (if any)
1870 // for an entry for this section offset.
1871 uint32_t sect_addr = info->S.getAddress();
1872 uint32_t sect_offset = (Pc + Offset) - sect_addr;
1874 MachO::any_relocation_info RE;
1875 bool isExtern = false;
1877 bool r_scattered = false;
1878 uint32_t r_value, pair_r_value, r_type, r_length, other_half;
1880 std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
1881 [&](const RelocationRef &Reloc) {
1882 uint64_t RelocOffset = Reloc.getOffset();
1883 return RelocOffset == sect_offset;
1886 if (Reloc == info->S.relocations().end())
1889 Rel = Reloc->getRawDataRefImpl();
1890 RE = info->O->getRelocation(Rel);
1891 r_length = info->O->getAnyRelocationLength(RE);
1892 r_scattered = info->O->isRelocationScattered(RE);
1894 r_value = info->O->getScatteredRelocationValue(RE);
1895 r_type = info->O->getScatteredRelocationType(RE);
1897 r_type = info->O->getAnyRelocationType(RE);
1898 isExtern = info->O->getPlainRelocationExternal(RE);
1900 symbol_iterator RelocSym = Reloc->getSymbol();
1904 if (r_type == MachO::ARM_RELOC_HALF ||
1905 r_type == MachO::ARM_RELOC_SECTDIFF ||
1906 r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF ||
1907 r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
1908 DataRefImpl RelNext = Rel;
1909 info->O->moveRelocationNext(RelNext);
1910 MachO::any_relocation_info RENext;
1911 RENext = info->O->getRelocation(RelNext);
1912 other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff;
1913 if (info->O->isRelocationScattered(RENext))
1914 pair_r_value = info->O->getScatteredRelocationValue(RENext);
1918 ErrorOr<StringRef> SymName = Symbol.getName();
1919 if (std::error_code EC = SymName.getError())
1920 report_fatal_error(EC.message());
1921 const char *name = SymName->data();
1922 op_info->AddSymbol.Present = 1;
1923 op_info->AddSymbol.Name = name;
1925 case MachO::ARM_RELOC_HALF:
1926 if ((r_length & 0x1) == 1) {
1927 op_info->Value = value << 16 | other_half;
1928 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
1930 op_info->Value = other_half << 16 | value;
1931 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
1939 // If we have a branch that is not an external relocation entry then
1940 // return 0 so the code in tryAddingSymbolicOperand() can use the
1941 // SymbolLookUp call back with the branch target address to look up the
1942 // symbol and possiblity add an annotation for a symbol stub.
1943 if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 ||
1944 r_type == MachO::ARM_THUMB_RELOC_BR22))
1947 uint32_t offset = 0;
1948 if (r_type == MachO::ARM_RELOC_HALF ||
1949 r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
1950 if ((r_length & 0x1) == 1)
1951 value = value << 16 | other_half;
1953 value = other_half << 16 | value;
1955 if (r_scattered && (r_type != MachO::ARM_RELOC_HALF &&
1956 r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) {
1957 offset = value - r_value;
1961 if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) {
1962 if ((r_length & 0x1) == 1)
1963 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
1965 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
1966 const char *add = GuessSymbolName(r_value, info->AddrMap);
1967 const char *sub = GuessSymbolName(pair_r_value, info->AddrMap);
1968 int32_t offset = value - (r_value - pair_r_value);
1969 op_info->AddSymbol.Present = 1;
1971 op_info->AddSymbol.Name = add;
1973 op_info->AddSymbol.Value = r_value;
1974 op_info->SubtractSymbol.Present = 1;
1976 op_info->SubtractSymbol.Name = sub;
1978 op_info->SubtractSymbol.Value = pair_r_value;
1979 op_info->Value = offset;
1983 op_info->AddSymbol.Present = 1;
1984 op_info->Value = offset;
1985 if (r_type == MachO::ARM_RELOC_HALF) {
1986 if ((r_length & 0x1) == 1)
1987 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI16;
1989 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO16;
1991 const char *add = GuessSymbolName(value, info->AddrMap);
1992 if (add != nullptr) {
1993 op_info->AddSymbol.Name = add;
1996 op_info->AddSymbol.Value = value;
1999 if (Arch == Triple::aarch64) {
2000 if (Offset != 0 || Size != 4)
2002 if (info->O->getHeader().filetype != MachO::MH_OBJECT) {
2004 // Search the external relocation entries of a fully linked image
2005 // (if any) for an entry that matches this segment offset.
2006 // uint64_t seg_offset = (Pc + Offset);
2009 // In MH_OBJECT filetypes search the section's relocation entries (if any)
2010 // for an entry for this section offset.
2011 uint64_t sect_addr = info->S.getAddress();
2012 uint64_t sect_offset = (Pc + Offset) - sect_addr;
2014 std::find_if(info->S.relocations().begin(), info->S.relocations().end(),
2015 [&](const RelocationRef &Reloc) {
2016 uint64_t RelocOffset = Reloc.getOffset();
2017 return RelocOffset == sect_offset;
2020 if (Reloc == info->S.relocations().end())
2023 DataRefImpl Rel = Reloc->getRawDataRefImpl();
2024 MachO::any_relocation_info RE = info->O->getRelocation(Rel);
2025 uint32_t r_type = info->O->getAnyRelocationType(RE);
2026 if (r_type == MachO::ARM64_RELOC_ADDEND) {
2027 DataRefImpl RelNext = Rel;
2028 info->O->moveRelocationNext(RelNext);
2029 MachO::any_relocation_info RENext = info->O->getRelocation(RelNext);
2031 value = info->O->getPlainRelocationSymbolNum(RENext);
2032 op_info->Value = value;
2035 // NOTE: Scattered relocations don't exist on arm64.
2036 if (!info->O->getPlainRelocationExternal(RE))
2038 ErrorOr<StringRef> SymName = Reloc->getSymbol()->getName();
2039 if (std::error_code EC = SymName.getError())
2040 report_fatal_error(EC.message());
2041 const char *name = SymName->data();
2042 op_info->AddSymbol.Present = 1;
2043 op_info->AddSymbol.Name = name;
2046 case MachO::ARM64_RELOC_PAGE21:
2048 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE;
2050 case MachO::ARM64_RELOC_PAGEOFF12:
2052 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF;
2054 case MachO::ARM64_RELOC_GOT_LOAD_PAGE21:
2056 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE;
2058 case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12:
2060 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF;
2062 case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21:
2063 /* @tvlppage is not implemented in llvm-mc */
2064 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP;
2066 case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12:
2067 /* @tvlppageoff is not implemented in llvm-mc */
2068 op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF;
2071 case MachO::ARM64_RELOC_BRANCH26:
2072 op_info->VariantKind = LLVMDisassembler_VariantKind_None;
2080 // GuessCstringPointer is passed the address of what might be a pointer to a
2081 // literal string in a cstring section. If that address is in a cstring section
2082 // it returns a pointer to that string. Else it returns nullptr.
2083 static const char *GuessCstringPointer(uint64_t ReferenceValue,
2084 struct DisassembleInfo *info) {
2085 for (const auto &Load : info->O->load_commands()) {
2086 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
2087 MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
2088 for (unsigned J = 0; J < Seg.nsects; ++J) {
2089 MachO::section_64 Sec = info->O->getSection64(Load, J);
2090 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2091 if (section_type == MachO::S_CSTRING_LITERALS &&
2092 ReferenceValue >= Sec.addr &&
2093 ReferenceValue < Sec.addr + Sec.size) {
2094 uint64_t sect_offset = ReferenceValue - Sec.addr;
2095 uint64_t object_offset = Sec.offset + sect_offset;
2096 StringRef MachOContents = info->O->getData();
2097 uint64_t object_size = MachOContents.size();
2098 const char *object_addr = (const char *)MachOContents.data();
2099 if (object_offset < object_size) {
2100 const char *name = object_addr + object_offset;
2107 } else if (Load.C.cmd == MachO::LC_SEGMENT) {
2108 MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load);
2109 for (unsigned J = 0; J < Seg.nsects; ++J) {
2110 MachO::section Sec = info->O->getSection(Load, J);
2111 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2112 if (section_type == MachO::S_CSTRING_LITERALS &&
2113 ReferenceValue >= Sec.addr &&
2114 ReferenceValue < Sec.addr + Sec.size) {
2115 uint64_t sect_offset = ReferenceValue - Sec.addr;
2116 uint64_t object_offset = Sec.offset + sect_offset;
2117 StringRef MachOContents = info->O->getData();
2118 uint64_t object_size = MachOContents.size();
2119 const char *object_addr = (const char *)MachOContents.data();
2120 if (object_offset < object_size) {
2121 const char *name = object_addr + object_offset;
2133 // GuessIndirectSymbol returns the name of the indirect symbol for the
2134 // ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe
2135 // an address of a symbol stub or a lazy or non-lazy pointer to associate the
2136 // symbol name being referenced by the stub or pointer.
2137 static const char *GuessIndirectSymbol(uint64_t ReferenceValue,
2138 struct DisassembleInfo *info) {
2139 MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand();
2140 MachO::symtab_command Symtab = info->O->getSymtabLoadCommand();
2141 for (const auto &Load : info->O->load_commands()) {
2142 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
2143 MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
2144 for (unsigned J = 0; J < Seg.nsects; ++J) {
2145 MachO::section_64 Sec = info->O->getSection64(Load, J);
2146 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2147 if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
2148 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
2149 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
2150 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
2151 section_type == MachO::S_SYMBOL_STUBS) &&
2152 ReferenceValue >= Sec.addr &&
2153 ReferenceValue < Sec.addr + Sec.size) {
2155 if (section_type == MachO::S_SYMBOL_STUBS)
2156 stride = Sec.reserved2;
2161 uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride;
2162 if (index < Dysymtab.nindirectsyms) {
2163 uint32_t indirect_symbol =
2164 info->O->getIndirectSymbolTableEntry(Dysymtab, index);
2165 if (indirect_symbol < Symtab.nsyms) {
2166 symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol);
2167 SymbolRef Symbol = *Sym;
2168 ErrorOr<StringRef> SymName = Symbol.getName();
2169 if (std::error_code EC = SymName.getError())
2170 report_fatal_error(EC.message());
2171 const char *name = SymName->data();
2177 } else if (Load.C.cmd == MachO::LC_SEGMENT) {
2178 MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load);
2179 for (unsigned J = 0; J < Seg.nsects; ++J) {
2180 MachO::section Sec = info->O->getSection(Load, J);
2181 uint32_t section_type = Sec.flags & MachO::SECTION_TYPE;
2182 if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
2183 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
2184 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
2185 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS ||
2186 section_type == MachO::S_SYMBOL_STUBS) &&
2187 ReferenceValue >= Sec.addr &&
2188 ReferenceValue < Sec.addr + Sec.size) {
2190 if (section_type == MachO::S_SYMBOL_STUBS)
2191 stride = Sec.reserved2;
2196 uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride;
2197 if (index < Dysymtab.nindirectsyms) {
2198 uint32_t indirect_symbol =
2199 info->O->getIndirectSymbolTableEntry(Dysymtab, index);
2200 if (indirect_symbol < Symtab.nsyms) {
2201 symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol);
2202 SymbolRef Symbol = *Sym;
2203 ErrorOr<StringRef> SymName = Symbol.getName();
2204 if (std::error_code EC = SymName.getError())
2205 report_fatal_error(EC.message());
2206 const char *name = SymName->data();
2217 // method_reference() is called passing it the ReferenceName that might be
2218 // a reference it to an Objective-C method call. If so then it allocates and
2219 // assembles a method call string with the values last seen and saved in
2220 // the DisassembleInfo's class_name and selector_name fields. This is saved
2221 // into the method field of the info and any previous string is free'ed.
2222 // Then the class_name field in the info is set to nullptr. The method call
2223 // string is set into ReferenceName and ReferenceType is set to
2224 // LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call
2225 // then both ReferenceType and ReferenceName are left unchanged.
2226 static void method_reference(struct DisassembleInfo *info,
2227 uint64_t *ReferenceType,
2228 const char **ReferenceName) {
2229 unsigned int Arch = info->O->getArch();
2230 if (*ReferenceName != nullptr) {
2231 if (strcmp(*ReferenceName, "_objc_msgSend") == 0) {
2232 if (info->selector_name != nullptr) {
2233 if (info->method != nullptr)
2235 if (info->class_name != nullptr) {
2236 info->method = (char *)malloc(5 + strlen(info->class_name) +
2237 strlen(info->selector_name));
2238 if (info->method != nullptr) {
2239 strcpy(info->method, "+[");
2240 strcat(info->method, info->class_name);
2241 strcat(info->method, " ");
2242 strcat(info->method, info->selector_name);
2243 strcat(info->method, "]");
2244 *ReferenceName = info->method;
2245 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
2248 info->method = (char *)malloc(9 + strlen(info->selector_name));
2249 if (info->method != nullptr) {
2250 if (Arch == Triple::x86_64)
2251 strcpy(info->method, "-[%rdi ");
2252 else if (Arch == Triple::aarch64)
2253 strcpy(info->method, "-[x0 ");
2255 strcpy(info->method, "-[r? ");
2256 strcat(info->method, info->selector_name);
2257 strcat(info->method, "]");
2258 *ReferenceName = info->method;
2259 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
2262 info->class_name = nullptr;
2264 } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) {
2265 if (info->selector_name != nullptr) {
2266 if (info->method != nullptr)
2268 info->method = (char *)malloc(17 + strlen(info->selector_name));
2269 if (info->method != nullptr) {
2270 if (Arch == Triple::x86_64)
2271 strcpy(info->method, "-[[%rdi super] ");
2272 else if (Arch == Triple::aarch64)
2273 strcpy(info->method, "-[[x0 super] ");
2275 strcpy(info->method, "-[[r? super] ");
2276 strcat(info->method, info->selector_name);
2277 strcat(info->method, "]");
2278 *ReferenceName = info->method;
2279 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message;
2281 info->class_name = nullptr;
2287 // GuessPointerPointer() is passed the address of what might be a pointer to
2288 // a reference to an Objective-C class, selector, message ref or cfstring.
2289 // If so the value of the pointer is returned and one of the booleans are set
2290 // to true. If not zero is returned and all the booleans are set to false.
2291 static uint64_t GuessPointerPointer(uint64_t ReferenceValue,
2292 struct DisassembleInfo *info,
2293 bool &classref, bool &selref, bool &msgref,
2299 for (const auto &Load : info->O->load_commands()) {
2300 if (Load.C.cmd == MachO::LC_SEGMENT_64) {
2301 MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load);
2302 for (unsigned J = 0; J < Seg.nsects; ++J) {
2303 MachO::section_64 Sec = info->O->getSection64(Load, J);
2304 if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 ||
2305 strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 ||
2306 strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 ||
2307 strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 ||
2308 strncmp(Sec.sectname, "__cfstring", 16) == 0) &&
2309 ReferenceValue >= Sec.addr &&
2310 ReferenceValue < Sec.addr + Sec.size) {
2311 uint64_t sect_offset = ReferenceValue - Sec.addr;
2312 uint64_t object_offset = Sec.offset + sect_offset;
2313 StringRef MachOContents = info->O->getData();
2314 uint64_t object_size = MachOContents.size();
2315 const char *object_addr = (const char *)MachOContents.data();
2316 if (object_offset < object_size) {
2317 uint64_t pointer_value;
2318 memcpy(&pointer_value, object_addr + object_offset,
2320 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
2321 sys::swapByteOrder(pointer_value);
2322 if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0)
2324 else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 ||
2325 strncmp(Sec.sectname, "__objc_superrefs", 16) == 0)
2327 else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 &&
2328 ReferenceValue + 8 < Sec.addr + Sec.size) {
2330 memcpy(&pointer_value, object_addr + object_offset + 8,
2332 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
2333 sys::swapByteOrder(pointer_value);
2334 } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0)
2336 return pointer_value;
2343 // TODO: Look for LC_SEGMENT for 32-bit Mach-O files.
2348 // get_pointer_64 returns a pointer to the bytes in the object file at the
2349 // Address from a section in the Mach-O file. And indirectly returns the
2350 // offset into the section, number of bytes left in the section past the offset
2351 // and which section is was being referenced. If the Address is not in a
2352 // section nullptr is returned.
2353 static const char *get_pointer_64(uint64_t Address, uint32_t &offset,
2354 uint32_t &left, SectionRef &S,
2355 DisassembleInfo *info,
2356 bool objc_only = false) {
2360 for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) {
2361 uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress();
2362 uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize();
2367 ((*(info->Sections))[SectIdx]).getName(SectName);
2368 DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl();
2369 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
2370 if (SegName != "__OBJC" && SectName != "__cstring")
2373 if (Address >= SectAddress && Address < SectAddress + SectSize) {
2374 S = (*(info->Sections))[SectIdx];
2375 offset = Address - SectAddress;
2376 left = SectSize - offset;
2377 StringRef SectContents;
2378 ((*(info->Sections))[SectIdx]).getContents(SectContents);
2379 return SectContents.data() + offset;
2385 static const char *get_pointer_32(uint32_t Address, uint32_t &offset,
2386 uint32_t &left, SectionRef &S,
2387 DisassembleInfo *info,
2388 bool objc_only = false) {
2389 return get_pointer_64(Address, offset, left, S, info, objc_only);
2392 // get_symbol_64() returns the name of a symbol (or nullptr) and the address of
2393 // the symbol indirectly through n_value. Based on the relocation information
2394 // for the specified section offset in the specified section reference.
2395 // If no relocation information is found and a non-zero ReferenceValue for the
2396 // symbol is passed, look up that address in the info's AddrMap.
2397 static const char *get_symbol_64(uint32_t sect_offset, SectionRef S,
2398 DisassembleInfo *info, uint64_t &n_value,
2399 uint64_t ReferenceValue = 0) {
2404 // See if there is an external relocation entry at the sect_offset.
2405 bool reloc_found = false;
2407 MachO::any_relocation_info RE;
2408 bool isExtern = false;
2410 for (const RelocationRef &Reloc : S.relocations()) {
2411 uint64_t RelocOffset = Reloc.getOffset();
2412 if (RelocOffset == sect_offset) {
2413 Rel = Reloc.getRawDataRefImpl();
2414 RE = info->O->getRelocation(Rel);
2415 if (info->O->isRelocationScattered(RE))
2417 isExtern = info->O->getPlainRelocationExternal(RE);
2419 symbol_iterator RelocSym = Reloc.getSymbol();
2426 // If there is an external relocation entry for a symbol in this section
2427 // at this section_offset then use that symbol's value for the n_value
2428 // and return its name.
2429 const char *SymbolName = nullptr;
2430 if (reloc_found && isExtern) {
2431 n_value = Symbol.getValue();
2432 ErrorOr<StringRef> NameOrError = Symbol.getName();
2433 if (std::error_code EC = NameOrError.getError())
2434 report_fatal_error(EC.message());
2435 StringRef Name = *NameOrError;
2436 if (!Name.empty()) {
2437 SymbolName = Name.data();
2442 // TODO: For fully linked images, look through the external relocation
2443 // entries off the dynamic symtab command. For these the r_offset is from the
2444 // start of the first writeable segment in the Mach-O file. So the offset
2445 // to this section from that segment is passed to this routine by the caller,
2446 // as the database_offset. Which is the difference of the section's starting
2447 // address and the first writable segment.
2449 // NOTE: need add passing the database_offset to this routine.
2451 // We did not find an external relocation entry so look up the ReferenceValue
2452 // as an address of a symbol and if found return that symbol's name.
2453 SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
2458 static const char *get_symbol_32(uint32_t sect_offset, SectionRef S,
2459 DisassembleInfo *info,
2460 uint32_t ReferenceValue) {
2462 return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue);
2465 // These are structs in the Objective-C meta data and read to produce the
2466 // comments for disassembly. While these are part of the ABI they are no
2467 // public defintions. So the are here not in include/llvm/Support/MachO.h .
2469 // The cfstring object in a 64-bit Mach-O file.
2470 struct cfstring64_t {
2471 uint64_t isa; // class64_t * (64-bit pointer)
2472 uint64_t flags; // flag bits
2473 uint64_t characters; // char * (64-bit pointer)
2474 uint64_t length; // number of non-NULL characters in above
2477 // The class object in a 64-bit Mach-O file.
2479 uint64_t isa; // class64_t * (64-bit pointer)
2480 uint64_t superclass; // class64_t * (64-bit pointer)
2481 uint64_t cache; // Cache (64-bit pointer)
2482 uint64_t vtable; // IMP * (64-bit pointer)
2483 uint64_t data; // class_ro64_t * (64-bit pointer)
2487 uint32_t isa; /* class32_t * (32-bit pointer) */
2488 uint32_t superclass; /* class32_t * (32-bit pointer) */
2489 uint32_t cache; /* Cache (32-bit pointer) */
2490 uint32_t vtable; /* IMP * (32-bit pointer) */
2491 uint32_t data; /* class_ro32_t * (32-bit pointer) */
2494 struct class_ro64_t {
2496 uint32_t instanceStart;
2497 uint32_t instanceSize;
2499 uint64_t ivarLayout; // const uint8_t * (64-bit pointer)
2500 uint64_t name; // const char * (64-bit pointer)
2501 uint64_t baseMethods; // const method_list_t * (64-bit pointer)
2502 uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer)
2503 uint64_t ivars; // const ivar_list_t * (64-bit pointer)
2504 uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer)
2505 uint64_t baseProperties; // const struct objc_property_list (64-bit pointer)
2508 struct class_ro32_t {
2510 uint32_t instanceStart;
2511 uint32_t instanceSize;
2512 uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */
2513 uint32_t name; /* const char * (32-bit pointer) */
2514 uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */
2515 uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */
2516 uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */
2517 uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */
2518 uint32_t baseProperties; /* const struct objc_property_list *
2522 /* Values for class_ro{64,32}_t->flags */
2523 #define RO_META (1 << 0)
2524 #define RO_ROOT (1 << 1)
2525 #define RO_HAS_CXX_STRUCTORS (1 << 2)
2527 struct method_list64_t {
2530 /* struct method64_t first; These structures follow inline */
2533 struct method_list32_t {
2536 /* struct method32_t first; These structures follow inline */
2540 uint64_t name; /* SEL (64-bit pointer) */
2541 uint64_t types; /* const char * (64-bit pointer) */
2542 uint64_t imp; /* IMP (64-bit pointer) */
2546 uint32_t name; /* SEL (32-bit pointer) */
2547 uint32_t types; /* const char * (32-bit pointer) */
2548 uint32_t imp; /* IMP (32-bit pointer) */
2551 struct protocol_list64_t {
2552 uint64_t count; /* uintptr_t (a 64-bit value) */
2553 /* struct protocol64_t * list[0]; These pointers follow inline */
2556 struct protocol_list32_t {
2557 uint32_t count; /* uintptr_t (a 32-bit value) */
2558 /* struct protocol32_t * list[0]; These pointers follow inline */
2561 struct protocol64_t {
2562 uint64_t isa; /* id * (64-bit pointer) */
2563 uint64_t name; /* const char * (64-bit pointer) */
2564 uint64_t protocols; /* struct protocol_list64_t *
2566 uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */
2567 uint64_t classMethods; /* method_list_t * (64-bit pointer) */
2568 uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */
2569 uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */
2570 uint64_t instanceProperties; /* struct objc_property_list *
2574 struct protocol32_t {
2575 uint32_t isa; /* id * (32-bit pointer) */
2576 uint32_t name; /* const char * (32-bit pointer) */
2577 uint32_t protocols; /* struct protocol_list_t *
2579 uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */
2580 uint32_t classMethods; /* method_list_t * (32-bit pointer) */
2581 uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */
2582 uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */
2583 uint32_t instanceProperties; /* struct objc_property_list *
2587 struct ivar_list64_t {
2590 /* struct ivar64_t first; These structures follow inline */
2593 struct ivar_list32_t {
2596 /* struct ivar32_t first; These structures follow inline */
2600 uint64_t offset; /* uintptr_t * (64-bit pointer) */
2601 uint64_t name; /* const char * (64-bit pointer) */
2602 uint64_t type; /* const char * (64-bit pointer) */
2608 uint32_t offset; /* uintptr_t * (32-bit pointer) */
2609 uint32_t name; /* const char * (32-bit pointer) */
2610 uint32_t type; /* const char * (32-bit pointer) */
2615 struct objc_property_list64 {
2618 /* struct objc_property64 first; These structures follow inline */
2621 struct objc_property_list32 {
2624 /* struct objc_property32 first; These structures follow inline */
2627 struct objc_property64 {
2628 uint64_t name; /* const char * (64-bit pointer) */
2629 uint64_t attributes; /* const char * (64-bit pointer) */
2632 struct objc_property32 {
2633 uint32_t name; /* const char * (32-bit pointer) */
2634 uint32_t attributes; /* const char * (32-bit pointer) */
2637 struct category64_t {
2638 uint64_t name; /* const char * (64-bit pointer) */
2639 uint64_t cls; /* struct class_t * (64-bit pointer) */
2640 uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */
2641 uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */
2642 uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */
2643 uint64_t instanceProperties; /* struct objc_property_list *
2647 struct category32_t {
2648 uint32_t name; /* const char * (32-bit pointer) */
2649 uint32_t cls; /* struct class_t * (32-bit pointer) */
2650 uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */
2651 uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */
2652 uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */
2653 uint32_t instanceProperties; /* struct objc_property_list *
2657 struct objc_image_info64 {
2661 struct objc_image_info32 {
2665 struct imageInfo_t {
2669 /* masks for objc_image_info.flags */
2670 #define OBJC_IMAGE_IS_REPLACEMENT (1 << 0)
2671 #define OBJC_IMAGE_SUPPORTS_GC (1 << 1)
2673 struct message_ref64 {
2674 uint64_t imp; /* IMP (64-bit pointer) */
2675 uint64_t sel; /* SEL (64-bit pointer) */
2678 struct message_ref32 {
2679 uint32_t imp; /* IMP (32-bit pointer) */
2680 uint32_t sel; /* SEL (32-bit pointer) */
2683 // Objective-C 1 (32-bit only) meta data structs.
2685 struct objc_module_t {
2688 uint32_t name; /* char * (32-bit pointer) */
2689 uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */
2692 struct objc_symtab_t {
2693 uint32_t sel_ref_cnt;
2694 uint32_t refs; /* SEL * (32-bit pointer) */
2695 uint16_t cls_def_cnt;
2696 uint16_t cat_def_cnt;
2697 // uint32_t defs[1]; /* void * (32-bit pointer) variable size */
2700 struct objc_class_t {
2701 uint32_t isa; /* struct objc_class * (32-bit pointer) */
2702 uint32_t super_class; /* struct objc_class * (32-bit pointer) */
2703 uint32_t name; /* const char * (32-bit pointer) */
2706 int32_t instance_size;
2707 uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */
2708 uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */
2709 uint32_t cache; /* struct objc_cache * (32-bit pointer) */
2710 uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */
2713 #define CLS_GETINFO(cls, infomask) ((cls)->info & (infomask))
2714 // class is not a metaclass
2715 #define CLS_CLASS 0x1
2716 // class is a metaclass
2717 #define CLS_META 0x2
2719 struct objc_category_t {
2720 uint32_t category_name; /* char * (32-bit pointer) */
2721 uint32_t class_name; /* char * (32-bit pointer) */
2722 uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */
2723 uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */
2724 uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */
2727 struct objc_ivar_t {
2728 uint32_t ivar_name; /* char * (32-bit pointer) */
2729 uint32_t ivar_type; /* char * (32-bit pointer) */
2730 int32_t ivar_offset;
2733 struct objc_ivar_list_t {
2735 // struct objc_ivar_t ivar_list[1]; /* variable length structure */
2738 struct objc_method_list_t {
2739 uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */
2740 int32_t method_count;
2741 // struct objc_method_t method_list[1]; /* variable length structure */
2744 struct objc_method_t {
2745 uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */
2746 uint32_t method_types; /* char * (32-bit pointer) */
2747 uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...)
2751 struct objc_protocol_list_t {
2752 uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */
2754 // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t *
2755 // (32-bit pointer) */
2758 struct objc_protocol_t {
2759 uint32_t isa; /* struct objc_class * (32-bit pointer) */
2760 uint32_t protocol_name; /* char * (32-bit pointer) */
2761 uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */
2762 uint32_t instance_methods; /* struct objc_method_description_list *
2764 uint32_t class_methods; /* struct objc_method_description_list *
2768 struct objc_method_description_list_t {
2770 // struct objc_method_description_t list[1];
2773 struct objc_method_description_t {
2774 uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */
2775 uint32_t types; /* char * (32-bit pointer) */
2778 inline void swapStruct(struct cfstring64_t &cfs) {
2779 sys::swapByteOrder(cfs.isa);
2780 sys::swapByteOrder(cfs.flags);
2781 sys::swapByteOrder(cfs.characters);
2782 sys::swapByteOrder(cfs.length);
2785 inline void swapStruct(struct class64_t &c) {
2786 sys::swapByteOrder(c.isa);
2787 sys::swapByteOrder(c.superclass);
2788 sys::swapByteOrder(c.cache);
2789 sys::swapByteOrder(c.vtable);
2790 sys::swapByteOrder(c.data);
2793 inline void swapStruct(struct class32_t &c) {
2794 sys::swapByteOrder(c.isa);
2795 sys::swapByteOrder(c.superclass);
2796 sys::swapByteOrder(c.cache);
2797 sys::swapByteOrder(c.vtable);
2798 sys::swapByteOrder(c.data);
2801 inline void swapStruct(struct class_ro64_t &cro) {
2802 sys::swapByteOrder(cro.flags);
2803 sys::swapByteOrder(cro.instanceStart);
2804 sys::swapByteOrder(cro.instanceSize);
2805 sys::swapByteOrder(cro.reserved);
2806 sys::swapByteOrder(cro.ivarLayout);
2807 sys::swapByteOrder(cro.name);
2808 sys::swapByteOrder(cro.baseMethods);
2809 sys::swapByteOrder(cro.baseProtocols);
2810 sys::swapByteOrder(cro.ivars);
2811 sys::swapByteOrder(cro.weakIvarLayout);
2812 sys::swapByteOrder(cro.baseProperties);
2815 inline void swapStruct(struct class_ro32_t &cro) {
2816 sys::swapByteOrder(cro.flags);
2817 sys::swapByteOrder(cro.instanceStart);
2818 sys::swapByteOrder(cro.instanceSize);
2819 sys::swapByteOrder(cro.ivarLayout);
2820 sys::swapByteOrder(cro.name);
2821 sys::swapByteOrder(cro.baseMethods);
2822 sys::swapByteOrder(cro.baseProtocols);
2823 sys::swapByteOrder(cro.ivars);
2824 sys::swapByteOrder(cro.weakIvarLayout);
2825 sys::swapByteOrder(cro.baseProperties);
2828 inline void swapStruct(struct method_list64_t &ml) {
2829 sys::swapByteOrder(ml.entsize);
2830 sys::swapByteOrder(ml.count);
2833 inline void swapStruct(struct method_list32_t &ml) {
2834 sys::swapByteOrder(ml.entsize);
2835 sys::swapByteOrder(ml.count);
2838 inline void swapStruct(struct method64_t &m) {
2839 sys::swapByteOrder(m.name);
2840 sys::swapByteOrder(m.types);
2841 sys::swapByteOrder(m.imp);
2844 inline void swapStruct(struct method32_t &m) {
2845 sys::swapByteOrder(m.name);
2846 sys::swapByteOrder(m.types);
2847 sys::swapByteOrder(m.imp);
2850 inline void swapStruct(struct protocol_list64_t &pl) {
2851 sys::swapByteOrder(pl.count);
2854 inline void swapStruct(struct protocol_list32_t &pl) {
2855 sys::swapByteOrder(pl.count);
2858 inline void swapStruct(struct protocol64_t &p) {
2859 sys::swapByteOrder(p.isa);
2860 sys::swapByteOrder(p.name);
2861 sys::swapByteOrder(p.protocols);
2862 sys::swapByteOrder(p.instanceMethods);
2863 sys::swapByteOrder(p.classMethods);
2864 sys::swapByteOrder(p.optionalInstanceMethods);
2865 sys::swapByteOrder(p.optionalClassMethods);
2866 sys::swapByteOrder(p.instanceProperties);
2869 inline void swapStruct(struct protocol32_t &p) {
2870 sys::swapByteOrder(p.isa);
2871 sys::swapByteOrder(p.name);
2872 sys::swapByteOrder(p.protocols);
2873 sys::swapByteOrder(p.instanceMethods);
2874 sys::swapByteOrder(p.classMethods);
2875 sys::swapByteOrder(p.optionalInstanceMethods);
2876 sys::swapByteOrder(p.optionalClassMethods);
2877 sys::swapByteOrder(p.instanceProperties);
2880 inline void swapStruct(struct ivar_list64_t &il) {
2881 sys::swapByteOrder(il.entsize);
2882 sys::swapByteOrder(il.count);
2885 inline void swapStruct(struct ivar_list32_t &il) {
2886 sys::swapByteOrder(il.entsize);
2887 sys::swapByteOrder(il.count);
2890 inline void swapStruct(struct ivar64_t &i) {
2891 sys::swapByteOrder(i.offset);
2892 sys::swapByteOrder(i.name);
2893 sys::swapByteOrder(i.type);
2894 sys::swapByteOrder(i.alignment);
2895 sys::swapByteOrder(i.size);
2898 inline void swapStruct(struct ivar32_t &i) {
2899 sys::swapByteOrder(i.offset);
2900 sys::swapByteOrder(i.name);
2901 sys::swapByteOrder(i.type);
2902 sys::swapByteOrder(i.alignment);
2903 sys::swapByteOrder(i.size);
2906 inline void swapStruct(struct objc_property_list64 &pl) {
2907 sys::swapByteOrder(pl.entsize);
2908 sys::swapByteOrder(pl.count);
2911 inline void swapStruct(struct objc_property_list32 &pl) {
2912 sys::swapByteOrder(pl.entsize);
2913 sys::swapByteOrder(pl.count);
2916 inline void swapStruct(struct objc_property64 &op) {
2917 sys::swapByteOrder(op.name);
2918 sys::swapByteOrder(op.attributes);
2921 inline void swapStruct(struct objc_property32 &op) {
2922 sys::swapByteOrder(op.name);
2923 sys::swapByteOrder(op.attributes);
2926 inline void swapStruct(struct category64_t &c) {
2927 sys::swapByteOrder(c.name);
2928 sys::swapByteOrder(c.cls);
2929 sys::swapByteOrder(c.instanceMethods);
2930 sys::swapByteOrder(c.classMethods);
2931 sys::swapByteOrder(c.protocols);
2932 sys::swapByteOrder(c.instanceProperties);
2935 inline void swapStruct(struct category32_t &c) {
2936 sys::swapByteOrder(c.name);
2937 sys::swapByteOrder(c.cls);
2938 sys::swapByteOrder(c.instanceMethods);
2939 sys::swapByteOrder(c.classMethods);
2940 sys::swapByteOrder(c.protocols);
2941 sys::swapByteOrder(c.instanceProperties);
2944 inline void swapStruct(struct objc_image_info64 &o) {
2945 sys::swapByteOrder(o.version);
2946 sys::swapByteOrder(o.flags);
2949 inline void swapStruct(struct objc_image_info32 &o) {
2950 sys::swapByteOrder(o.version);
2951 sys::swapByteOrder(o.flags);
2954 inline void swapStruct(struct imageInfo_t &o) {
2955 sys::swapByteOrder(o.version);
2956 sys::swapByteOrder(o.flags);
2959 inline void swapStruct(struct message_ref64 &mr) {
2960 sys::swapByteOrder(mr.imp);
2961 sys::swapByteOrder(mr.sel);
2964 inline void swapStruct(struct message_ref32 &mr) {
2965 sys::swapByteOrder(mr.imp);
2966 sys::swapByteOrder(mr.sel);
2969 inline void swapStruct(struct objc_module_t &module) {
2970 sys::swapByteOrder(module.version);
2971 sys::swapByteOrder(module.size);
2972 sys::swapByteOrder(module.name);
2973 sys::swapByteOrder(module.symtab);
2976 inline void swapStruct(struct objc_symtab_t &symtab) {
2977 sys::swapByteOrder(symtab.sel_ref_cnt);
2978 sys::swapByteOrder(symtab.refs);
2979 sys::swapByteOrder(symtab.cls_def_cnt);
2980 sys::swapByteOrder(symtab.cat_def_cnt);
2983 inline void swapStruct(struct objc_class_t &objc_class) {
2984 sys::swapByteOrder(objc_class.isa);
2985 sys::swapByteOrder(objc_class.super_class);
2986 sys::swapByteOrder(objc_class.name);
2987 sys::swapByteOrder(objc_class.version);
2988 sys::swapByteOrder(objc_class.info);
2989 sys::swapByteOrder(objc_class.instance_size);
2990 sys::swapByteOrder(objc_class.ivars);
2991 sys::swapByteOrder(objc_class.methodLists);
2992 sys::swapByteOrder(objc_class.cache);
2993 sys::swapByteOrder(objc_class.protocols);
2996 inline void swapStruct(struct objc_category_t &objc_category) {
2997 sys::swapByteOrder(objc_category.category_name);
2998 sys::swapByteOrder(objc_category.class_name);
2999 sys::swapByteOrder(objc_category.instance_methods);
3000 sys::swapByteOrder(objc_category.class_methods);
3001 sys::swapByteOrder(objc_category.protocols);
3004 inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) {
3005 sys::swapByteOrder(objc_ivar_list.ivar_count);
3008 inline void swapStruct(struct objc_ivar_t &objc_ivar) {
3009 sys::swapByteOrder(objc_ivar.ivar_name);
3010 sys::swapByteOrder(objc_ivar.ivar_type);
3011 sys::swapByteOrder(objc_ivar.ivar_offset);
3014 inline void swapStruct(struct objc_method_list_t &method_list) {
3015 sys::swapByteOrder(method_list.obsolete);
3016 sys::swapByteOrder(method_list.method_count);
3019 inline void swapStruct(struct objc_method_t &method) {
3020 sys::swapByteOrder(method.method_name);
3021 sys::swapByteOrder(method.method_types);
3022 sys::swapByteOrder(method.method_imp);
3025 inline void swapStruct(struct objc_protocol_list_t &protocol_list) {
3026 sys::swapByteOrder(protocol_list.next);
3027 sys::swapByteOrder(protocol_list.count);
3030 inline void swapStruct(struct objc_protocol_t &protocol) {
3031 sys::swapByteOrder(protocol.isa);
3032 sys::swapByteOrder(protocol.protocol_name);
3033 sys::swapByteOrder(protocol.protocol_list);
3034 sys::swapByteOrder(protocol.instance_methods);
3035 sys::swapByteOrder(protocol.class_methods);
3038 inline void swapStruct(struct objc_method_description_list_t &mdl) {
3039 sys::swapByteOrder(mdl.count);
3042 inline void swapStruct(struct objc_method_description_t &md) {
3043 sys::swapByteOrder(md.name);
3044 sys::swapByteOrder(md.types);
3047 static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
3048 struct DisassembleInfo *info);
3050 // get_objc2_64bit_class_name() is used for disassembly and is passed a pointer
3051 // to an Objective-C class and returns the class name. It is also passed the
3052 // address of the pointer, so when the pointer is zero as it can be in an .o
3053 // file, that is used to look for an external relocation entry with a symbol
3055 static const char *get_objc2_64bit_class_name(uint64_t pointer_value,
3056 uint64_t ReferenceValue,
3057 struct DisassembleInfo *info) {
3059 uint32_t offset, left;
3062 // The pointer_value can be 0 in an object file and have a relocation
3063 // entry for the class symbol at the ReferenceValue (the address of the
3065 if (pointer_value == 0) {
3066 r = get_pointer_64(ReferenceValue, offset, left, S, info);
3067 if (r == nullptr || left < sizeof(uint64_t))
3070 const char *symbol_name = get_symbol_64(offset, S, info, n_value);
3071 if (symbol_name == nullptr)
3073 const char *class_name = strrchr(symbol_name, '$');
3074 if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0')
3075 return class_name + 2;
3080 // The case were the pointer_value is non-zero and points to a class defined
3081 // in this Mach-O file.
3082 r = get_pointer_64(pointer_value, offset, left, S, info);
3083 if (r == nullptr || left < sizeof(struct class64_t))
3086 memcpy(&c, r, sizeof(struct class64_t));
3087 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3091 r = get_pointer_64(c.data, offset, left, S, info);
3092 if (r == nullptr || left < sizeof(struct class_ro64_t))
3094 struct class_ro64_t cro;
3095 memcpy(&cro, r, sizeof(struct class_ro64_t));
3096 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3100 const char *name = get_pointer_64(cro.name, offset, left, S, info);
3104 // get_objc2_64bit_cfstring_name is used for disassembly and is passed a
3105 // pointer to a cfstring and returns its name or nullptr.
3106 static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue,
3107 struct DisassembleInfo *info) {
3108 const char *r, *name;
3109 uint32_t offset, left;
3111 struct cfstring64_t cfs;
3112 uint64_t cfs_characters;
3114 r = get_pointer_64(ReferenceValue, offset, left, S, info);
3115 if (r == nullptr || left < sizeof(struct cfstring64_t))
3117 memcpy(&cfs, r, sizeof(struct cfstring64_t));
3118 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3120 if (cfs.characters == 0) {
3122 const char *symbol_name = get_symbol_64(
3123 offset + offsetof(struct cfstring64_t, characters), S, info, n_value);
3124 if (symbol_name == nullptr)
3126 cfs_characters = n_value;
3128 cfs_characters = cfs.characters;
3129 name = get_pointer_64(cfs_characters, offset, left, S, info);
3134 // get_objc2_64bit_selref() is used for disassembly and is passed a the address
3135 // of a pointer to an Objective-C selector reference when the pointer value is
3136 // zero as in a .o file and is likely to have a external relocation entry with
3137 // who's symbol's n_value is the real pointer to the selector name. If that is
3138 // the case the real pointer to the selector name is returned else 0 is
3140 static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue,
3141 struct DisassembleInfo *info) {
3142 uint32_t offset, left;
3145 const char *r = get_pointer_64(ReferenceValue, offset, left, S, info);
3146 if (r == nullptr || left < sizeof(uint64_t))
3149 const char *symbol_name = get_symbol_64(offset, S, info, n_value);
3150 if (symbol_name == nullptr)
3155 static const SectionRef get_section(MachOObjectFile *O, const char *segname,
3156 const char *sectname) {
3157 for (const SectionRef &Section : O->sections()) {
3159 Section.getName(SectName);
3160 DataRefImpl Ref = Section.getRawDataRefImpl();
3161 StringRef SegName = O->getSectionFinalSegmentName(Ref);
3162 if (SegName == segname && SectName == sectname)
3165 return SectionRef();
3169 walk_pointer_list_64(const char *listname, const SectionRef S,
3170 MachOObjectFile *O, struct DisassembleInfo *info,
3171 void (*func)(uint64_t, struct DisassembleInfo *info)) {
3172 if (S == SectionRef())
3176 S.getName(SectName);
3177 DataRefImpl Ref = S.getRawDataRefImpl();
3178 StringRef SegName = O->getSectionFinalSegmentName(Ref);
3179 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
3182 S.getContents(BytesStr);
3183 const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
3185 for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) {
3186 uint32_t left = S.getSize() - i;
3187 uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t);
3189 memcpy(&p, Contents + i, size);
3190 if (i + sizeof(uint64_t) > S.getSize())
3191 outs() << listname << " list pointer extends past end of (" << SegName
3192 << "," << SectName << ") section\n";
3193 outs() << format("%016" PRIx64, S.getAddress() + i) << " ";
3195 if (O->isLittleEndian() != sys::IsLittleEndianHost)
3196 sys::swapByteOrder(p);
3198 uint64_t n_value = 0;
3199 const char *name = get_symbol_64(i, S, info, n_value, p);
3200 if (name == nullptr)
3201 name = get_dyld_bind_info_symbolname(S.getAddress() + i, info);
3204 outs() << format("0x%" PRIx64, n_value);
3206 outs() << " + " << format("0x%" PRIx64, p);
3208 outs() << format("0x%" PRIx64, p);
3209 if (name != nullptr)
3210 outs() << " " << name;
3220 walk_pointer_list_32(const char *listname, const SectionRef S,
3221 MachOObjectFile *O, struct DisassembleInfo *info,
3222 void (*func)(uint32_t, struct DisassembleInfo *info)) {
3223 if (S == SectionRef())
3227 S.getName(SectName);
3228 DataRefImpl Ref = S.getRawDataRefImpl();
3229 StringRef SegName = O->getSectionFinalSegmentName(Ref);
3230 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
3233 S.getContents(BytesStr);
3234 const char *Contents = reinterpret_cast<const char *>(BytesStr.data());
3236 for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) {
3237 uint32_t left = S.getSize() - i;
3238 uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t);
3240 memcpy(&p, Contents + i, size);
3241 if (i + sizeof(uint32_t) > S.getSize())
3242 outs() << listname << " list pointer extends past end of (" << SegName
3243 << "," << SectName << ") section\n";
3244 uint32_t Address = S.getAddress() + i;
3245 outs() << format("%08" PRIx32, Address) << " ";
3247 if (O->isLittleEndian() != sys::IsLittleEndianHost)
3248 sys::swapByteOrder(p);
3249 outs() << format("0x%" PRIx32, p);
3251 const char *name = get_symbol_32(i, S, info, p);
3252 if (name != nullptr)
3253 outs() << " " << name;
3261 static void print_layout_map(const char *layout_map, uint32_t left) {
3262 if (layout_map == nullptr)
3264 outs() << " layout map: ";
3266 outs() << format("0x%02" PRIx32, (*layout_map) & 0xff) << " ";
3269 } while (*layout_map != '\0' && left != 0);
3273 static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) {
3274 uint32_t offset, left;
3276 const char *layout_map;
3280 layout_map = get_pointer_64(p, offset, left, S, info);
3281 print_layout_map(layout_map, left);
3284 static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) {
3285 uint32_t offset, left;
3287 const char *layout_map;
3291 layout_map = get_pointer_32(p, offset, left, S, info);
3292 print_layout_map(layout_map, left);
3295 static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info,
3296 const char *indent) {
3297 struct method_list64_t ml;
3298 struct method64_t m;
3300 uint32_t offset, xoffset, left, i;
3302 const char *name, *sym_name;
3305 r = get_pointer_64(p, offset, left, S, info);
3308 memset(&ml, '\0', sizeof(struct method_list64_t));
3309 if (left < sizeof(struct method_list64_t)) {
3310 memcpy(&ml, r, left);
3311 outs() << " (method_list_t entends past the end of the section)\n";
3313 memcpy(&ml, r, sizeof(struct method_list64_t));
3314 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3316 outs() << indent << "\t\t entsize " << ml.entsize << "\n";
3317 outs() << indent << "\t\t count " << ml.count << "\n";
3319 p += sizeof(struct method_list64_t);
3320 offset += sizeof(struct method_list64_t);
3321 for (i = 0; i < ml.count; i++) {
3322 r = get_pointer_64(p, offset, left, S, info);
3325 memset(&m, '\0', sizeof(struct method64_t));
3326 if (left < sizeof(struct method64_t)) {
3327 memcpy(&m, r, left);
3328 outs() << indent << " (method_t extends past the end of the section)\n";
3330 memcpy(&m, r, sizeof(struct method64_t));
3331 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3334 outs() << indent << "\t\t name ";
3335 sym_name = get_symbol_64(offset + offsetof(struct method64_t, name), S,
3336 info, n_value, m.name);
3338 if (info->verbose && sym_name != nullptr)
3341 outs() << format("0x%" PRIx64, n_value);
3343 outs() << " + " << format("0x%" PRIx64, m.name);
3345 outs() << format("0x%" PRIx64, m.name);
3346 name = get_pointer_64(m.name + n_value, xoffset, left, xS, info);
3347 if (name != nullptr)
3348 outs() << format(" %.*s", left, name);
3351 outs() << indent << "\t\t types ";
3352 sym_name = get_symbol_64(offset + offsetof(struct method64_t, types), S,
3353 info, n_value, m.types);
3355 if (info->verbose && sym_name != nullptr)
3358 outs() << format("0x%" PRIx64, n_value);
3360 outs() << " + " << format("0x%" PRIx64, m.types);
3362 outs() << format("0x%" PRIx64, m.types);
3363 name = get_pointer_64(m.types + n_value, xoffset, left, xS, info);
3364 if (name != nullptr)
3365 outs() << format(" %.*s", left, name);
3368 outs() << indent << "\t\t imp ";
3369 name = get_symbol_64(offset + offsetof(struct method64_t, imp), S, info,
3371 if (info->verbose && name == nullptr) {
3373 outs() << format("0x%" PRIx64, n_value) << " ";
3375 outs() << "+ " << format("0x%" PRIx64, m.imp) << " ";
3377 outs() << format("0x%" PRIx64, m.imp) << " ";
3379 if (name != nullptr)
3383 p += sizeof(struct method64_t);
3384 offset += sizeof(struct method64_t);
3388 static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info,
3389 const char *indent) {
3390 struct method_list32_t ml;
3391 struct method32_t m;
3392 const char *r, *name;
3393 uint32_t offset, xoffset, left, i;
3396 r = get_pointer_32(p, offset, left, S, info);
3399 memset(&ml, '\0', sizeof(struct method_list32_t));
3400 if (left < sizeof(struct method_list32_t)) {
3401 memcpy(&ml, r, left);
3402 outs() << " (method_list_t entends past the end of the section)\n";
3404 memcpy(&ml, r, sizeof(struct method_list32_t));
3405 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3407 outs() << indent << "\t\t entsize " << ml.entsize << "\n";
3408 outs() << indent << "\t\t count " << ml.count << "\n";
3410 p += sizeof(struct method_list32_t);
3411 offset += sizeof(struct method_list32_t);
3412 for (i = 0; i < ml.count; i++) {
3413 r = get_pointer_32(p, offset, left, S, info);
3416 memset(&m, '\0', sizeof(struct method32_t));
3417 if (left < sizeof(struct method32_t)) {
3418 memcpy(&ml, r, left);
3419 outs() << indent << " (method_t entends past the end of the section)\n";
3421 memcpy(&m, r, sizeof(struct method32_t));
3422 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3425 outs() << indent << "\t\t name " << format("0x%" PRIx32, m.name);
3426 name = get_pointer_32(m.name, xoffset, left, xS, info);
3427 if (name != nullptr)
3428 outs() << format(" %.*s", left, name);
3431 outs() << indent << "\t\t types " << format("0x%" PRIx32, m.types);
3432 name = get_pointer_32(m.types, xoffset, left, xS, info);
3433 if (name != nullptr)
3434 outs() << format(" %.*s", left, name);
3437 outs() << indent << "\t\t imp " << format("0x%" PRIx32, m.imp);
3438 name = get_symbol_32(offset + offsetof(struct method32_t, imp), S, info,
3440 if (name != nullptr)
3441 outs() << " " << name;
3444 p += sizeof(struct method32_t);
3445 offset += sizeof(struct method32_t);
3449 static bool print_method_list(uint32_t p, struct DisassembleInfo *info) {
3450 uint32_t offset, left, xleft;
3452 struct objc_method_list_t method_list;
3453 struct objc_method_t method;
3454 const char *r, *methods, *name, *SymbolName;
3457 r = get_pointer_32(p, offset, left, S, info, true);
3462 if (left > sizeof(struct objc_method_list_t)) {
3463 memcpy(&method_list, r, sizeof(struct objc_method_list_t));
3465 outs() << "\t\t objc_method_list extends past end of the section\n";
3466 memset(&method_list, '\0', sizeof(struct objc_method_list_t));
3467 memcpy(&method_list, r, left);
3469 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3470 swapStruct(method_list);
3472 outs() << "\t\t obsolete "
3473 << format("0x%08" PRIx32, method_list.obsolete) << "\n";
3474 outs() << "\t\t method_count " << method_list.method_count << "\n";
3476 methods = r + sizeof(struct objc_method_list_t);
3477 for (i = 0; i < method_list.method_count; i++) {
3478 if ((i + 1) * sizeof(struct objc_method_t) > left) {
3479 outs() << "\t\t remaining method's extend past the of the section\n";
3482 memcpy(&method, methods + i * sizeof(struct objc_method_t),
3483 sizeof(struct objc_method_t));
3484 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3487 outs() << "\t\t method_name "
3488 << format("0x%08" PRIx32, method.method_name);
3489 if (info->verbose) {
3490 name = get_pointer_32(method.method_name, offset, xleft, S, info, true);
3491 if (name != nullptr)
3492 outs() << format(" %.*s", xleft, name);
3494 outs() << " (not in an __OBJC section)";
3498 outs() << "\t\t method_types "
3499 << format("0x%08" PRIx32, method.method_types);
3500 if (info->verbose) {
3501 name = get_pointer_32(method.method_types, offset, xleft, S, info, true);
3502 if (name != nullptr)
3503 outs() << format(" %.*s", xleft, name);
3505 outs() << " (not in an __OBJC section)";
3509 outs() << "\t\t method_imp "
3510 << format("0x%08" PRIx32, method.method_imp) << " ";
3511 if (info->verbose) {
3512 SymbolName = GuessSymbolName(method.method_imp, info->AddrMap);
3513 if (SymbolName != nullptr)
3514 outs() << SymbolName;
3521 static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) {
3522 struct protocol_list64_t pl;
3523 uint64_t q, n_value;
3524 struct protocol64_t pc;
3526 uint32_t offset, xoffset, left, i;
3528 const char *name, *sym_name;
3530 r = get_pointer_64(p, offset, left, S, info);
3533 memset(&pl, '\0', sizeof(struct protocol_list64_t));
3534 if (left < sizeof(struct protocol_list64_t)) {
3535 memcpy(&pl, r, left);
3536 outs() << " (protocol_list_t entends past the end of the section)\n";
3538 memcpy(&pl, r, sizeof(struct protocol_list64_t));
3539 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3541 outs() << " count " << pl.count << "\n";
3543 p += sizeof(struct protocol_list64_t);
3544 offset += sizeof(struct protocol_list64_t);
3545 for (i = 0; i < pl.count; i++) {
3546 r = get_pointer_64(p, offset, left, S, info);
3550 if (left < sizeof(uint64_t)) {
3551 memcpy(&q, r, left);
3552 outs() << " (protocol_t * entends past the end of the section)\n";
3554 memcpy(&q, r, sizeof(uint64_t));
3555 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3556 sys::swapByteOrder(q);
3558 outs() << "\t\t list[" << i << "] ";
3559 sym_name = get_symbol_64(offset, S, info, n_value, q);
3561 if (info->verbose && sym_name != nullptr)
3564 outs() << format("0x%" PRIx64, n_value);
3566 outs() << " + " << format("0x%" PRIx64, q);
3568 outs() << format("0x%" PRIx64, q);
3569 outs() << " (struct protocol_t *)\n";
3571 r = get_pointer_64(q + n_value, offset, left, S, info);
3574 memset(&pc, '\0', sizeof(struct protocol64_t));
3575 if (left < sizeof(struct protocol64_t)) {
3576 memcpy(&pc, r, left);
3577 outs() << " (protocol_t entends past the end of the section)\n";
3579 memcpy(&pc, r, sizeof(struct protocol64_t));
3580 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3583 outs() << "\t\t\t isa " << format("0x%" PRIx64, pc.isa) << "\n";
3585 outs() << "\t\t\t name ";
3586 sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name), S,
3587 info, n_value, pc.name);
3589 if (info->verbose && sym_name != nullptr)
3592 outs() << format("0x%" PRIx64, n_value);
3594 outs() << " + " << format("0x%" PRIx64, pc.name);
3596 outs() << format("0x%" PRIx64, pc.name);
3597 name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info);
3598 if (name != nullptr)
3599 outs() << format(" %.*s", left, name);
3602 outs() << "\t\t\tprotocols " << format("0x%" PRIx64, pc.protocols) << "\n";
3604 outs() << "\t\t instanceMethods ";
3606 get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods),
3607 S, info, n_value, pc.instanceMethods);
3609 if (info->verbose && sym_name != nullptr)
3612 outs() << format("0x%" PRIx64, n_value);
3613 if (pc.instanceMethods != 0)
3614 outs() << " + " << format("0x%" PRIx64, pc.instanceMethods);
3616 outs() << format("0x%" PRIx64, pc.instanceMethods);
3617 outs() << " (struct method_list_t *)\n";
3618 if (pc.instanceMethods + n_value != 0)
3619 print_method_list64_t(pc.instanceMethods + n_value, info, "\t");
3621 outs() << "\t\t classMethods ";
3623 get_symbol_64(offset + offsetof(struct protocol64_t, classMethods), S,
3624 info, n_value, pc.classMethods);
3626 if (info->verbose && sym_name != nullptr)
3629 outs() << format("0x%" PRIx64, n_value);
3630 if (pc.classMethods != 0)
3631 outs() << " + " << format("0x%" PRIx64, pc.classMethods);
3633 outs() << format("0x%" PRIx64, pc.classMethods);
3634 outs() << " (struct method_list_t *)\n";
3635 if (pc.classMethods + n_value != 0)
3636 print_method_list64_t(pc.classMethods + n_value, info, "\t");
3638 outs() << "\t optionalInstanceMethods "
3639 << format("0x%" PRIx64, pc.optionalInstanceMethods) << "\n";
3640 outs() << "\t optionalClassMethods "
3641 << format("0x%" PRIx64, pc.optionalClassMethods) << "\n";
3642 outs() << "\t instanceProperties "
3643 << format("0x%" PRIx64, pc.instanceProperties) << "\n";
3645 p += sizeof(uint64_t);
3646 offset += sizeof(uint64_t);
3650 static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) {
3651 struct protocol_list32_t pl;
3653 struct protocol32_t pc;
3655 uint32_t offset, xoffset, left, i;
3659 r = get_pointer_32(p, offset, left, S, info);
3662 memset(&pl, '\0', sizeof(struct protocol_list32_t));
3663 if (left < sizeof(struct protocol_list32_t)) {
3664 memcpy(&pl, r, left);
3665 outs() << " (protocol_list_t entends past the end of the section)\n";
3667 memcpy(&pl, r, sizeof(struct protocol_list32_t));
3668 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3670 outs() << " count " << pl.count << "\n";
3672 p += sizeof(struct protocol_list32_t);
3673 offset += sizeof(struct protocol_list32_t);
3674 for (i = 0; i < pl.count; i++) {
3675 r = get_pointer_32(p, offset, left, S, info);
3679 if (left < sizeof(uint32_t)) {
3680 memcpy(&q, r, left);
3681 outs() << " (protocol_t * entends past the end of the section)\n";
3683 memcpy(&q, r, sizeof(uint32_t));
3684 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3685 sys::swapByteOrder(q);
3686 outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32, q)
3687 << " (struct protocol_t *)\n";
3688 r = get_pointer_32(q, offset, left, S, info);
3691 memset(&pc, '\0', sizeof(struct protocol32_t));
3692 if (left < sizeof(struct protocol32_t)) {
3693 memcpy(&pc, r, left);
3694 outs() << " (protocol_t entends past the end of the section)\n";
3696 memcpy(&pc, r, sizeof(struct protocol32_t));
3697 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3699 outs() << "\t\t\t isa " << format("0x%" PRIx32, pc.isa) << "\n";
3700 outs() << "\t\t\t name " << format("0x%" PRIx32, pc.name);
3701 name = get_pointer_32(pc.name, xoffset, left, xS, info);
3702 if (name != nullptr)
3703 outs() << format(" %.*s", left, name);
3705 outs() << "\t\t\tprotocols " << format("0x%" PRIx32, pc.protocols) << "\n";
3706 outs() << "\t\t instanceMethods "
3707 << format("0x%" PRIx32, pc.instanceMethods)
3708 << " (struct method_list_t *)\n";
3709 if (pc.instanceMethods != 0)
3710 print_method_list32_t(pc.instanceMethods, info, "\t");
3711 outs() << "\t\t classMethods " << format("0x%" PRIx32, pc.classMethods)
3712 << " (struct method_list_t *)\n";
3713 if (pc.classMethods != 0)
3714 print_method_list32_t(pc.classMethods, info, "\t");
3715 outs() << "\t optionalInstanceMethods "
3716 << format("0x%" PRIx32, pc.optionalInstanceMethods) << "\n";
3717 outs() << "\t optionalClassMethods "
3718 << format("0x%" PRIx32, pc.optionalClassMethods) << "\n";
3719 outs() << "\t instanceProperties "
3720 << format("0x%" PRIx32, pc.instanceProperties) << "\n";
3721 p += sizeof(uint32_t);
3722 offset += sizeof(uint32_t);
3726 static void print_indent(uint32_t indent) {
3727 for (uint32_t i = 0; i < indent;) {
3728 if (indent - i >= 8) {
3732 for (uint32_t j = i; j < indent; j++)
3739 static bool print_method_description_list(uint32_t p, uint32_t indent,
3740 struct DisassembleInfo *info) {
3741 uint32_t offset, left, xleft;
3743 struct objc_method_description_list_t mdl;
3744 struct objc_method_description_t md;
3745 const char *r, *list, *name;
3748 r = get_pointer_32(p, offset, left, S, info, true);
3753 if (left > sizeof(struct objc_method_description_list_t)) {
3754 memcpy(&mdl, r, sizeof(struct objc_method_description_list_t));
3756 print_indent(indent);
3757 outs() << " objc_method_description_list extends past end of the section\n";
3758 memset(&mdl, '\0', sizeof(struct objc_method_description_list_t));
3759 memcpy(&mdl, r, left);
3761 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3764 print_indent(indent);
3765 outs() << " count " << mdl.count << "\n";
3767 list = r + sizeof(struct objc_method_description_list_t);
3768 for (i = 0; i < mdl.count; i++) {
3769 if ((i + 1) * sizeof(struct objc_method_description_t) > left) {
3770 print_indent(indent);
3771 outs() << " remaining list entries extend past the of the section\n";
3774 print_indent(indent);
3775 outs() << " list[" << i << "]\n";
3776 memcpy(&md, list + i * sizeof(struct objc_method_description_t),
3777 sizeof(struct objc_method_description_t));
3778 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3781 print_indent(indent);
3782 outs() << " name " << format("0x%08" PRIx32, md.name);
3783 if (info->verbose) {
3784 name = get_pointer_32(md.name, offset, xleft, S, info, true);
3785 if (name != nullptr)
3786 outs() << format(" %.*s", xleft, name);
3788 outs() << " (not in an __OBJC section)";
3792 print_indent(indent);
3793 outs() << " types " << format("0x%08" PRIx32, md.types);
3794 if (info->verbose) {
3795 name = get_pointer_32(md.types, offset, xleft, S, info, true);
3796 if (name != nullptr)
3797 outs() << format(" %.*s", xleft, name);
3799 outs() << " (not in an __OBJC section)";
3806 static bool print_protocol_list(uint32_t p, uint32_t indent,
3807 struct DisassembleInfo *info);
3809 static bool print_protocol(uint32_t p, uint32_t indent,
3810 struct DisassembleInfo *info) {
3811 uint32_t offset, left;
3813 struct objc_protocol_t protocol;
3814 const char *r, *name;
3816 r = get_pointer_32(p, offset, left, S, info, true);
3821 if (left >= sizeof(struct objc_protocol_t)) {
3822 memcpy(&protocol, r, sizeof(struct objc_protocol_t));
3824 print_indent(indent);
3825 outs() << " Protocol extends past end of the section\n";
3826 memset(&protocol, '\0', sizeof(struct objc_protocol_t));
3827 memcpy(&protocol, r, left);
3829 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3830 swapStruct(protocol);
3832 print_indent(indent);
3833 outs() << " isa " << format("0x%08" PRIx32, protocol.isa)
3836 print_indent(indent);
3837 outs() << " protocol_name "
3838 << format("0x%08" PRIx32, protocol.protocol_name);
3839 if (info->verbose) {
3840 name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true);
3841 if (name != nullptr)
3842 outs() << format(" %.*s", left, name);
3844 outs() << " (not in an __OBJC section)";
3848 print_indent(indent);
3849 outs() << " protocol_list "
3850 << format("0x%08" PRIx32, protocol.protocol_list);
3851 if (print_protocol_list(protocol.protocol_list, indent + 4, info))
3852 outs() << " (not in an __OBJC section)\n";
3854 print_indent(indent);
3855 outs() << " instance_methods "
3856 << format("0x%08" PRIx32, protocol.instance_methods);
3857 if (print_method_description_list(protocol.instance_methods, indent, info))
3858 outs() << " (not in an __OBJC section)\n";
3860 print_indent(indent);
3861 outs() << " class_methods "
3862 << format("0x%08" PRIx32, protocol.class_methods);
3863 if (print_method_description_list(protocol.class_methods, indent, info))
3864 outs() << " (not in an __OBJC section)\n";
3869 static bool print_protocol_list(uint32_t p, uint32_t indent,
3870 struct DisassembleInfo *info) {
3871 uint32_t offset, left, l;
3873 struct objc_protocol_list_t protocol_list;
3874 const char *r, *list;
3877 r = get_pointer_32(p, offset, left, S, info, true);
3882 if (left > sizeof(struct objc_protocol_list_t)) {
3883 memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t));
3885 outs() << "\t\t objc_protocol_list_t extends past end of the section\n";
3886 memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t));
3887 memcpy(&protocol_list, r, left);
3889 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3890 swapStruct(protocol_list);
3892 print_indent(indent);
3893 outs() << " next " << format("0x%08" PRIx32, protocol_list.next)
3895 print_indent(indent);
3896 outs() << " count " << protocol_list.count << "\n";
3898 list = r + sizeof(struct objc_protocol_list_t);
3899 for (i = 0; i < protocol_list.count; i++) {
3900 if ((i + 1) * sizeof(uint32_t) > left) {
3901 outs() << "\t\t remaining list entries extend past the of the section\n";
3904 memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t));
3905 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3906 sys::swapByteOrder(l);
3908 print_indent(indent);
3909 outs() << " list[" << i << "] " << format("0x%08" PRIx32, l);
3910 if (print_protocol(l, indent, info))
3911 outs() << "(not in an __OBJC section)\n";
3916 static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) {
3917 struct ivar_list64_t il;
3920 uint32_t offset, xoffset, left, j;
3922 const char *name, *sym_name, *ivar_offset_p;
3923 uint64_t ivar_offset, n_value;
3925 r = get_pointer_64(p, offset, left, S, info);
3928 memset(&il, '\0', sizeof(struct ivar_list64_t));
3929 if (left < sizeof(struct ivar_list64_t)) {
3930 memcpy(&il, r, left);
3931 outs() << " (ivar_list_t entends past the end of the section)\n";
3933 memcpy(&il, r, sizeof(struct ivar_list64_t));
3934 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3936 outs() << " entsize " << il.entsize << "\n";
3937 outs() << " count " << il.count << "\n";
3939 p += sizeof(struct ivar_list64_t);
3940 offset += sizeof(struct ivar_list64_t);
3941 for (j = 0; j < il.count; j++) {
3942 r = get_pointer_64(p, offset, left, S, info);
3945 memset(&i, '\0', sizeof(struct ivar64_t));
3946 if (left < sizeof(struct ivar64_t)) {
3947 memcpy(&i, r, left);
3948 outs() << " (ivar_t entends past the end of the section)\n";
3950 memcpy(&i, r, sizeof(struct ivar64_t));
3951 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3954 outs() << "\t\t\t offset ";
3955 sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset), S,
3956 info, n_value, i.offset);
3958 if (info->verbose && sym_name != nullptr)
3961 outs() << format("0x%" PRIx64, n_value);
3963 outs() << " + " << format("0x%" PRIx64, i.offset);
3965 outs() << format("0x%" PRIx64, i.offset);
3966 ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info);
3967 if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) {
3968 memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset));
3969 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
3970 sys::swapByteOrder(ivar_offset);
3971 outs() << " " << ivar_offset << "\n";
3975 outs() << "\t\t\t name ";
3976 sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name), S, info,
3979 if (info->verbose && sym_name != nullptr)
3982 outs() << format("0x%" PRIx64, n_value);
3984 outs() << " + " << format("0x%" PRIx64, i.name);
3986 outs() << format("0x%" PRIx64, i.name);
3987 name = get_pointer_64(i.name + n_value, xoffset, left, xS, info);
3988 if (name != nullptr)
3989 outs() << format(" %.*s", left, name);
3992 outs() << "\t\t\t type ";
3993 sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type), S, info,
3995 name = get_pointer_64(i.type + n_value, xoffset, left, xS, info);
3997 if (info->verbose && sym_name != nullptr)
4000 outs() << format("0x%" PRIx64, n_value);
4002 outs() << " + " << format("0x%" PRIx64, i.type);
4004 outs() << format("0x%" PRIx64, i.type);
4005 if (name != nullptr)
4006 outs() << format(" %.*s", left, name);
4009 outs() << "\t\t\talignment " << i.alignment << "\n";
4010 outs() << "\t\t\t size " << i.size << "\n";
4012 p += sizeof(struct ivar64_t);
4013 offset += sizeof(struct ivar64_t);
4017 static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) {
4018 struct ivar_list32_t il;
4021 uint32_t offset, xoffset, left, j;
4023 const char *name, *ivar_offset_p;
4024 uint32_t ivar_offset;
4026 r = get_pointer_32(p, offset, left, S, info);
4029 memset(&il, '\0', sizeof(struct ivar_list32_t));
4030 if (left < sizeof(struct ivar_list32_t)) {
4031 memcpy(&il, r, left);
4032 outs() << " (ivar_list_t entends past the end of the section)\n";
4034 memcpy(&il, r, sizeof(struct ivar_list32_t));
4035 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4037 outs() << " entsize " << il.entsize << "\n";
4038 outs() << " count " << il.count << "\n";
4040 p += sizeof(struct ivar_list32_t);
4041 offset += sizeof(struct ivar_list32_t);
4042 for (j = 0; j < il.count; j++) {
4043 r = get_pointer_32(p, offset, left, S, info);
4046 memset(&i, '\0', sizeof(struct ivar32_t));
4047 if (left < sizeof(struct ivar32_t)) {
4048 memcpy(&i, r, left);
4049 outs() << " (ivar_t entends past the end of the section)\n";
4051 memcpy(&i, r, sizeof(struct ivar32_t));
4052 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4055 outs() << "\t\t\t offset " << format("0x%" PRIx32, i.offset);
4056 ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info);
4057 if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) {
4058 memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset));
4059 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4060 sys::swapByteOrder(ivar_offset);
4061 outs() << " " << ivar_offset << "\n";
4065 outs() << "\t\t\t name " << format("0x%" PRIx32, i.name);
4066 name = get_pointer_32(i.name, xoffset, left, xS, info);
4067 if (name != nullptr)
4068 outs() << format(" %.*s", left, name);
4071 outs() << "\t\t\t type " << format("0x%" PRIx32, i.type);
4072 name = get_pointer_32(i.type, xoffset, left, xS, info);
4073 if (name != nullptr)
4074 outs() << format(" %.*s", left, name);
4077 outs() << "\t\t\talignment " << i.alignment << "\n";
4078 outs() << "\t\t\t size " << i.size << "\n";
4080 p += sizeof(struct ivar32_t);
4081 offset += sizeof(struct ivar32_t);
4085 static void print_objc_property_list64(uint64_t p,
4086 struct DisassembleInfo *info) {
4087 struct objc_property_list64 opl;
4088 struct objc_property64 op;
4090 uint32_t offset, xoffset, left, j;
4092 const char *name, *sym_name;
4095 r = get_pointer_64(p, offset, left, S, info);
4098 memset(&opl, '\0', sizeof(struct objc_property_list64));
4099 if (left < sizeof(struct objc_property_list64)) {
4100 memcpy(&opl, r, left);
4101 outs() << " (objc_property_list entends past the end of the section)\n";
4103 memcpy(&opl, r, sizeof(struct objc_property_list64));
4104 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4106 outs() << " entsize " << opl.entsize << "\n";
4107 outs() << " count " << opl.count << "\n";
4109 p += sizeof(struct objc_property_list64);
4110 offset += sizeof(struct objc_property_list64);
4111 for (j = 0; j < opl.count; j++) {
4112 r = get_pointer_64(p, offset, left, S, info);
4115 memset(&op, '\0', sizeof(struct objc_property64));
4116 if (left < sizeof(struct objc_property64)) {
4117 memcpy(&op, r, left);
4118 outs() << " (objc_property entends past the end of the section)\n";
4120 memcpy(&op, r, sizeof(struct objc_property64));
4121 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4124 outs() << "\t\t\t name ";
4125 sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name), S,
4126 info, n_value, op.name);
4128 if (info->verbose && sym_name != nullptr)
4131 outs() << format("0x%" PRIx64, n_value);
4133 outs() << " + " << format("0x%" PRIx64, op.name);
4135 outs() << format("0x%" PRIx64, op.name);
4136 name = get_pointer_64(op.name + n_value, xoffset, left, xS, info);
4137 if (name != nullptr)
4138 outs() << format(" %.*s", left, name);
4141 outs() << "\t\t\tattributes ";
4143 get_symbol_64(offset + offsetof(struct objc_property64, attributes), S,
4144 info, n_value, op.attributes);
4146 if (info->verbose && sym_name != nullptr)
4149 outs() << format("0x%" PRIx64, n_value);
4150 if (op.attributes != 0)
4151 outs() << " + " << format("0x%" PRIx64, op.attributes);
4153 outs() << format("0x%" PRIx64, op.attributes);
4154 name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info);
4155 if (name != nullptr)
4156 outs() << format(" %.*s", left, name);
4159 p += sizeof(struct objc_property64);
4160 offset += sizeof(struct objc_property64);
4164 static void print_objc_property_list32(uint32_t p,
4165 struct DisassembleInfo *info) {
4166 struct objc_property_list32 opl;
4167 struct objc_property32 op;
4169 uint32_t offset, xoffset, left, j;
4173 r = get_pointer_32(p, offset, left, S, info);
4176 memset(&opl, '\0', sizeof(struct objc_property_list32));
4177 if (left < sizeof(struct objc_property_list32)) {
4178 memcpy(&opl, r, left);
4179 outs() << " (objc_property_list entends past the end of the section)\n";
4181 memcpy(&opl, r, sizeof(struct objc_property_list32));
4182 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4184 outs() << " entsize " << opl.entsize << "\n";
4185 outs() << " count " << opl.count << "\n";
4187 p += sizeof(struct objc_property_list32);
4188 offset += sizeof(struct objc_property_list32);
4189 for (j = 0; j < opl.count; j++) {
4190 r = get_pointer_32(p, offset, left, S, info);
4193 memset(&op, '\0', sizeof(struct objc_property32));
4194 if (left < sizeof(struct objc_property32)) {
4195 memcpy(&op, r, left);
4196 outs() << " (objc_property entends past the end of the section)\n";
4198 memcpy(&op, r, sizeof(struct objc_property32));
4199 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4202 outs() << "\t\t\t name " << format("0x%" PRIx32, op.name);
4203 name = get_pointer_32(op.name, xoffset, left, xS, info);
4204 if (name != nullptr)
4205 outs() << format(" %.*s", left, name);
4208 outs() << "\t\t\tattributes " << format("0x%" PRIx32, op.attributes);
4209 name = get_pointer_32(op.attributes, xoffset, left, xS, info);
4210 if (name != nullptr)
4211 outs() << format(" %.*s", left, name);
4214 p += sizeof(struct objc_property32);
4215 offset += sizeof(struct objc_property32);
4219 static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info,
4220 bool &is_meta_class) {
4221 struct class_ro64_t cro;
4223 uint32_t offset, xoffset, left;
4225 const char *name, *sym_name;
4228 r = get_pointer_64(p, offset, left, S, info);
4229 if (r == nullptr || left < sizeof(struct class_ro64_t))
4231 memset(&cro, '\0', sizeof(struct class_ro64_t));
4232 if (left < sizeof(struct class_ro64_t)) {
4233 memcpy(&cro, r, left);
4234 outs() << " (class_ro_t entends past the end of the section)\n";
4236 memcpy(&cro, r, sizeof(struct class_ro64_t));
4237 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4239 outs() << " flags " << format("0x%" PRIx32, cro.flags);
4240 if (cro.flags & RO_META)
4241 outs() << " RO_META";
4242 if (cro.flags & RO_ROOT)
4243 outs() << " RO_ROOT";
4244 if (cro.flags & RO_HAS_CXX_STRUCTORS)
4245 outs() << " RO_HAS_CXX_STRUCTORS";
4247 outs() << " instanceStart " << cro.instanceStart << "\n";
4248 outs() << " instanceSize " << cro.instanceSize << "\n";
4249 outs() << " reserved " << format("0x%" PRIx32, cro.reserved)
4251 outs() << " ivarLayout " << format("0x%" PRIx64, cro.ivarLayout)
4253 print_layout_map64(cro.ivarLayout, info);
4256 sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name), S,
4257 info, n_value, cro.name);
4259 if (info->verbose && sym_name != nullptr)
4262 outs() << format("0x%" PRIx64, n_value);
4264 outs() << " + " << format("0x%" PRIx64, cro.name);
4266 outs() << format("0x%" PRIx64, cro.name);
4267 name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info);
4268 if (name != nullptr)
4269 outs() << format(" %.*s", left, name);
4272 outs() << " baseMethods ";
4273 sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods),
4274 S, info, n_value, cro.baseMethods);
4276 if (info->verbose && sym_name != nullptr)
4279 outs() << format("0x%" PRIx64, n_value);
4280 if (cro.baseMethods != 0)
4281 outs() << " + " << format("0x%" PRIx64, cro.baseMethods);
4283 outs() << format("0x%" PRIx64, cro.baseMethods);
4284 outs() << " (struct method_list_t *)\n";
4285 if (cro.baseMethods + n_value != 0)
4286 print_method_list64_t(cro.baseMethods + n_value, info, "");
4288 outs() << " baseProtocols ";
4290 get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols), S,
4291 info, n_value, cro.baseProtocols);
4293 if (info->verbose && sym_name != nullptr)
4296 outs() << format("0x%" PRIx64, n_value);
4297 if (cro.baseProtocols != 0)
4298 outs() << " + " << format("0x%" PRIx64, cro.baseProtocols);
4300 outs() << format("0x%" PRIx64, cro.baseProtocols);
4302 if (cro.baseProtocols + n_value != 0)
4303 print_protocol_list64_t(cro.baseProtocols + n_value, info);
4305 outs() << " ivars ";
4306 sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars), S,
4307 info, n_value, cro.ivars);
4309 if (info->verbose && sym_name != nullptr)
4312 outs() << format("0x%" PRIx64, n_value);
4314 outs() << " + " << format("0x%" PRIx64, cro.ivars);
4316 outs() << format("0x%" PRIx64, cro.ivars);
4318 if (cro.ivars + n_value != 0)
4319 print_ivar_list64_t(cro.ivars + n_value, info);
4321 outs() << " weakIvarLayout ";
4323 get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout), S,
4324 info, n_value, cro.weakIvarLayout);
4326 if (info->verbose && sym_name != nullptr)
4329 outs() << format("0x%" PRIx64, n_value);
4330 if (cro.weakIvarLayout != 0)
4331 outs() << " + " << format("0x%" PRIx64, cro.weakIvarLayout);
4333 outs() << format("0x%" PRIx64, cro.weakIvarLayout);
4335 print_layout_map64(cro.weakIvarLayout + n_value, info);
4337 outs() << " baseProperties ";
4339 get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties), S,
4340 info, n_value, cro.baseProperties);
4342 if (info->verbose && sym_name != nullptr)
4345 outs() << format("0x%" PRIx64, n_value);
4346 if (cro.baseProperties != 0)
4347 outs() << " + " << format("0x%" PRIx64, cro.baseProperties);
4349 outs() << format("0x%" PRIx64, cro.baseProperties);
4351 if (cro.baseProperties + n_value != 0)
4352 print_objc_property_list64(cro.baseProperties + n_value, info);
4354 is_meta_class = (cro.flags & RO_META) ? true : false;
4358 static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info,
4359 bool &is_meta_class) {
4360 struct class_ro32_t cro;
4362 uint32_t offset, xoffset, left;
4366 r = get_pointer_32(p, offset, left, S, info);
4369 memset(&cro, '\0', sizeof(struct class_ro32_t));
4370 if (left < sizeof(struct class_ro32_t)) {
4371 memcpy(&cro, r, left);
4372 outs() << " (class_ro_t entends past the end of the section)\n";
4374 memcpy(&cro, r, sizeof(struct class_ro32_t));
4375 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4377 outs() << " flags " << format("0x%" PRIx32, cro.flags);
4378 if (cro.flags & RO_META)
4379 outs() << " RO_META";
4380 if (cro.flags & RO_ROOT)
4381 outs() << " RO_ROOT";
4382 if (cro.flags & RO_HAS_CXX_STRUCTORS)
4383 outs() << " RO_HAS_CXX_STRUCTORS";
4385 outs() << " instanceStart " << cro.instanceStart << "\n";
4386 outs() << " instanceSize " << cro.instanceSize << "\n";
4387 outs() << " ivarLayout " << format("0x%" PRIx32, cro.ivarLayout)
4389 print_layout_map32(cro.ivarLayout, info);
4391 outs() << " name " << format("0x%" PRIx32, cro.name);
4392 name = get_pointer_32(cro.name, xoffset, left, xS, info);
4393 if (name != nullptr)
4394 outs() << format(" %.*s", left, name);
4397 outs() << " baseMethods "
4398 << format("0x%" PRIx32, cro.baseMethods)
4399 << " (struct method_list_t *)\n";
4400 if (cro.baseMethods != 0)
4401 print_method_list32_t(cro.baseMethods, info, "");
4403 outs() << " baseProtocols "
4404 << format("0x%" PRIx32, cro.baseProtocols) << "\n";
4405 if (cro.baseProtocols != 0)
4406 print_protocol_list32_t(cro.baseProtocols, info);
4407 outs() << " ivars " << format("0x%" PRIx32, cro.ivars)
4410 print_ivar_list32_t(cro.ivars, info);
4411 outs() << " weakIvarLayout "
4412 << format("0x%" PRIx32, cro.weakIvarLayout) << "\n";
4413 print_layout_map32(cro.weakIvarLayout, info);
4414 outs() << " baseProperties "
4415 << format("0x%" PRIx32, cro.baseProperties) << "\n";
4416 if (cro.baseProperties != 0)
4417 print_objc_property_list32(cro.baseProperties, info);
4418 is_meta_class = (cro.flags & RO_META) ? true : false;
4422 static void print_class64_t(uint64_t p, struct DisassembleInfo *info) {
4425 uint32_t offset, left;
4428 uint64_t isa_n_value, n_value;
4430 r = get_pointer_64(p, offset, left, S, info);
4431 if (r == nullptr || left < sizeof(struct class64_t))
4433 memset(&c, '\0', sizeof(struct class64_t));
4434 if (left < sizeof(struct class64_t)) {
4435 memcpy(&c, r, left);
4436 outs() << " (class_t entends past the end of the section)\n";
4438 memcpy(&c, r, sizeof(struct class64_t));
4439 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4442 outs() << " isa " << format("0x%" PRIx64, c.isa);
4443 name = get_symbol_64(offset + offsetof(struct class64_t, isa), S, info,
4444 isa_n_value, c.isa);
4445 if (name != nullptr)
4446 outs() << " " << name;
4449 outs() << " superclass " << format("0x%" PRIx64, c.superclass);
4450 name = get_symbol_64(offset + offsetof(struct class64_t, superclass), S, info,
4451 n_value, c.superclass);
4452 if (name != nullptr)
4453 outs() << " " << name;
4456 outs() << " cache " << format("0x%" PRIx64, c.cache);
4457 name = get_symbol_64(offset + offsetof(struct class64_t, cache), S, info,
4459 if (name != nullptr)
4460 outs() << " " << name;
4463 outs() << " vtable " << format("0x%" PRIx64, c.vtable);
4464 name = get_symbol_64(offset + offsetof(struct class64_t, vtable), S, info,
4466 if (name != nullptr)
4467 outs() << " " << name;
4470 name = get_symbol_64(offset + offsetof(struct class64_t, data), S, info,
4474 if (info->verbose && name != nullptr)
4477 outs() << format("0x%" PRIx64, n_value);
4479 outs() << " + " << format("0x%" PRIx64, c.data);
4481 outs() << format("0x%" PRIx64, c.data);
4482 outs() << " (struct class_ro_t *)";
4484 // This is a Swift class if some of the low bits of the pointer are set.
4485 if ((c.data + n_value) & 0x7)
4486 outs() << " Swift class";
4489 if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class))
4492 if (!is_meta_class &&
4493 c.isa + isa_n_value != p &&
4494 c.isa + isa_n_value != 0 &&
4495 info->depth < 100) {
4497 outs() << "Meta Class\n";
4498 print_class64_t(c.isa + isa_n_value, info);
4502 static void print_class32_t(uint32_t p, struct DisassembleInfo *info) {
4505 uint32_t offset, left;
4509 r = get_pointer_32(p, offset, left, S, info);
4512 memset(&c, '\0', sizeof(struct class32_t));
4513 if (left < sizeof(struct class32_t)) {
4514 memcpy(&c, r, left);
4515 outs() << " (class_t entends past the end of the section)\n";
4517 memcpy(&c, r, sizeof(struct class32_t));
4518 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4521 outs() << " isa " << format("0x%" PRIx32, c.isa);
4523 get_symbol_32(offset + offsetof(struct class32_t, isa), S, info, c.isa);
4524 if (name != nullptr)
4525 outs() << " " << name;
4528 outs() << " superclass " << format("0x%" PRIx32, c.superclass);
4529 name = get_symbol_32(offset + offsetof(struct class32_t, superclass), S, info,
4531 if (name != nullptr)
4532 outs() << " " << name;
4535 outs() << " cache " << format("0x%" PRIx32, c.cache);
4536 name = get_symbol_32(offset + offsetof(struct class32_t, cache), S, info,
4538 if (name != nullptr)
4539 outs() << " " << name;
4542 outs() << " vtable " << format("0x%" PRIx32, c.vtable);
4543 name = get_symbol_32(offset + offsetof(struct class32_t, vtable), S, info,
4545 if (name != nullptr)
4546 outs() << " " << name;
4550 get_symbol_32(offset + offsetof(struct class32_t, data), S, info, c.data);
4551 outs() << " data " << format("0x%" PRIx32, c.data)
4552 << " (struct class_ro_t *)";
4554 // This is a Swift class if some of the low bits of the pointer are set.
4556 outs() << " Swift class";
4559 if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class))
4562 if (!is_meta_class) {
4563 outs() << "Meta Class\n";
4564 print_class32_t(c.isa, info);
4568 static void print_objc_class_t(struct objc_class_t *objc_class,
4569 struct DisassembleInfo *info) {
4570 uint32_t offset, left, xleft;
4571 const char *name, *p, *ivar_list;
4574 struct objc_ivar_list_t objc_ivar_list;
4575 struct objc_ivar_t ivar;
4577 outs() << "\t\t isa " << format("0x%08" PRIx32, objc_class->isa);
4578 if (info->verbose && CLS_GETINFO(objc_class, CLS_META)) {
4579 name = get_pointer_32(objc_class->isa, offset, left, S, info, true);
4580 if (name != nullptr)
4581 outs() << format(" %.*s", left, name);
4583 outs() << " (not in an __OBJC section)";
4587 outs() << "\t super_class "
4588 << format("0x%08" PRIx32, objc_class->super_class);
4589 if (info->verbose) {
4590 name = get_pointer_32(objc_class->super_class, offset, left, S, info, true);
4591 if (name != nullptr)
4592 outs() << format(" %.*s", left, name);
4594 outs() << " (not in an __OBJC section)";
4598 outs() << "\t\t name " << format("0x%08" PRIx32, objc_class->name);
4599 if (info->verbose) {
4600 name = get_pointer_32(objc_class->name, offset, left, S, info, true);
4601 if (name != nullptr)
4602 outs() << format(" %.*s", left, name);
4604 outs() << " (not in an __OBJC section)";
4608 outs() << "\t\t version " << format("0x%08" PRIx32, objc_class->version)
4611 outs() << "\t\t info " << format("0x%08" PRIx32, objc_class->info);
4612 if (info->verbose) {
4613 if (CLS_GETINFO(objc_class, CLS_CLASS))
4614 outs() << " CLS_CLASS";
4615 else if (CLS_GETINFO(objc_class, CLS_META))
4616 outs() << " CLS_META";
4620 outs() << "\t instance_size "
4621 << format("0x%08" PRIx32, objc_class->instance_size) << "\n";
4623 p = get_pointer_32(objc_class->ivars, offset, left, S, info, true);
4624 outs() << "\t\t ivars " << format("0x%08" PRIx32, objc_class->ivars);
4626 if (left > sizeof(struct objc_ivar_list_t)) {
4628 memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t));
4630 outs() << " (entends past the end of the section)\n";
4631 memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t));
4632 memcpy(&objc_ivar_list, p, left);
4634 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4635 swapStruct(objc_ivar_list);
4636 outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n";
4637 ivar_list = p + sizeof(struct objc_ivar_list_t);
4638 for (i = 0; i < objc_ivar_list.ivar_count; i++) {
4639 if ((i + 1) * sizeof(struct objc_ivar_t) > left) {
4640 outs() << "\t\t remaining ivar's extend past the of the section\n";
4643 memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t),
4644 sizeof(struct objc_ivar_t));
4645 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4648 outs() << "\t\t\tivar_name " << format("0x%08" PRIx32, ivar.ivar_name);
4649 if (info->verbose) {
4650 name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true);
4651 if (name != nullptr)
4652 outs() << format(" %.*s", xleft, name);
4654 outs() << " (not in an __OBJC section)";
4658 outs() << "\t\t\tivar_type " << format("0x%08" PRIx32, ivar.ivar_type);
4659 if (info->verbose) {
4660 name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true);
4661 if (name != nullptr)
4662 outs() << format(" %.*s", xleft, name);
4664 outs() << " (not in an __OBJC section)";
4668 outs() << "\t\t ivar_offset "
4669 << format("0x%08" PRIx32, ivar.ivar_offset) << "\n";
4672 outs() << " (not in an __OBJC section)\n";
4675 outs() << "\t\t methods " << format("0x%08" PRIx32, objc_class->methodLists);
4676 if (print_method_list(objc_class->methodLists, info))
4677 outs() << " (not in an __OBJC section)\n";
4679 outs() << "\t\t cache " << format("0x%08" PRIx32, objc_class->cache)
4682 outs() << "\t\tprotocols " << format("0x%08" PRIx32, objc_class->protocols);
4683 if (print_protocol_list(objc_class->protocols, 16, info))
4684 outs() << " (not in an __OBJC section)\n";
4687 static void print_objc_objc_category_t(struct objc_category_t *objc_category,
4688 struct DisassembleInfo *info) {
4689 uint32_t offset, left;
4693 outs() << "\t category name "
4694 << format("0x%08" PRIx32, objc_category->category_name);
4695 if (info->verbose) {
4696 name = get_pointer_32(objc_category->category_name, offset, left, S, info,
4698 if (name != nullptr)
4699 outs() << format(" %.*s", left, name);
4701 outs() << " (not in an __OBJC section)";
4705 outs() << "\t\t class name "
4706 << format("0x%08" PRIx32, objc_category->class_name);
4707 if (info->verbose) {
4709 get_pointer_32(objc_category->class_name, offset, left, S, info, true);
4710 if (name != nullptr)
4711 outs() << format(" %.*s", left, name);
4713 outs() << " (not in an __OBJC section)";
4717 outs() << "\t instance methods "
4718 << format("0x%08" PRIx32, objc_category->instance_methods);
4719 if (print_method_list(objc_category->instance_methods, info))
4720 outs() << " (not in an __OBJC section)\n";
4722 outs() << "\t class methods "
4723 << format("0x%08" PRIx32, objc_category->class_methods);
4724 if (print_method_list(objc_category->class_methods, info))
4725 outs() << " (not in an __OBJC section)\n";
4728 static void print_category64_t(uint64_t p, struct DisassembleInfo *info) {
4729 struct category64_t c;
4731 uint32_t offset, xoffset, left;
4733 const char *name, *sym_name;
4736 r = get_pointer_64(p, offset, left, S, info);
4739 memset(&c, '\0', sizeof(struct category64_t));
4740 if (left < sizeof(struct category64_t)) {
4741 memcpy(&c, r, left);
4742 outs() << " (category_t entends past the end of the section)\n";
4744 memcpy(&c, r, sizeof(struct category64_t));
4745 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4749 sym_name = get_symbol_64(offset + offsetof(struct category64_t, name), S,
4750 info, n_value, c.name);
4752 if (info->verbose && sym_name != nullptr)
4755 outs() << format("0x%" PRIx64, n_value);
4757 outs() << " + " << format("0x%" PRIx64, c.name);
4759 outs() << format("0x%" PRIx64, c.name);
4760 name = get_pointer_64(c.name + n_value, xoffset, left, xS, info);
4761 if (name != nullptr)
4762 outs() << format(" %.*s", left, name);
4766 sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls), S, info,
4769 if (info->verbose && sym_name != nullptr)
4772 outs() << format("0x%" PRIx64, n_value);
4774 outs() << " + " << format("0x%" PRIx64, c.cls);
4776 outs() << format("0x%" PRIx64, c.cls);
4778 if (c.cls + n_value != 0)
4779 print_class64_t(c.cls + n_value, info);
4781 outs() << " instanceMethods ";
4783 get_symbol_64(offset + offsetof(struct category64_t, instanceMethods), S,
4784 info, n_value, c.instanceMethods);
4786 if (info->verbose && sym_name != nullptr)
4789 outs() << format("0x%" PRIx64, n_value);
4790 if (c.instanceMethods != 0)
4791 outs() << " + " << format("0x%" PRIx64, c.instanceMethods);
4793 outs() << format("0x%" PRIx64, c.instanceMethods);
4795 if (c.instanceMethods + n_value != 0)
4796 print_method_list64_t(c.instanceMethods + n_value, info, "");
4798 outs() << " classMethods ";
4799 sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods),
4800 S, info, n_value, c.classMethods);
4802 if (info->verbose && sym_name != nullptr)
4805 outs() << format("0x%" PRIx64, n_value);
4806 if (c.classMethods != 0)
4807 outs() << " + " << format("0x%" PRIx64, c.classMethods);
4809 outs() << format("0x%" PRIx64, c.classMethods);
4811 if (c.classMethods + n_value != 0)
4812 print_method_list64_t(c.classMethods + n_value, info, "");
4814 outs() << " protocols ";
4815 sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols), S,
4816 info, n_value, c.protocols);
4818 if (info->verbose && sym_name != nullptr)
4821 outs() << format("0x%" PRIx64, n_value);
4822 if (c.protocols != 0)
4823 outs() << " + " << format("0x%" PRIx64, c.protocols);
4825 outs() << format("0x%" PRIx64, c.protocols);
4827 if (c.protocols + n_value != 0)
4828 print_protocol_list64_t(c.protocols + n_value, info);
4830 outs() << "instanceProperties ";
4832 get_symbol_64(offset + offsetof(struct category64_t, instanceProperties),
4833 S, info, n_value, c.instanceProperties);
4835 if (info->verbose && sym_name != nullptr)
4838 outs() << format("0x%" PRIx64, n_value);
4839 if (c.instanceProperties != 0)
4840 outs() << " + " << format("0x%" PRIx64, c.instanceProperties);
4842 outs() << format("0x%" PRIx64, c.instanceProperties);
4844 if (c.instanceProperties + n_value != 0)
4845 print_objc_property_list64(c.instanceProperties + n_value, info);
4848 static void print_category32_t(uint32_t p, struct DisassembleInfo *info) {
4849 struct category32_t c;
4851 uint32_t offset, left;
4855 r = get_pointer_32(p, offset, left, S, info);
4858 memset(&c, '\0', sizeof(struct category32_t));
4859 if (left < sizeof(struct category32_t)) {
4860 memcpy(&c, r, left);
4861 outs() << " (category_t entends past the end of the section)\n";
4863 memcpy(&c, r, sizeof(struct category32_t));
4864 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4867 outs() << " name " << format("0x%" PRIx32, c.name);
4868 name = get_symbol_32(offset + offsetof(struct category32_t, name), S, info,
4871 outs() << " " << name;
4874 outs() << " cls " << format("0x%" PRIx32, c.cls) << "\n";
4876 print_class32_t(c.cls, info);
4877 outs() << " instanceMethods " << format("0x%" PRIx32, c.instanceMethods)
4879 if (c.instanceMethods != 0)
4880 print_method_list32_t(c.instanceMethods, info, "");
4881 outs() << " classMethods " << format("0x%" PRIx32, c.classMethods)
4883 if (c.classMethods != 0)
4884 print_method_list32_t(c.classMethods, info, "");
4885 outs() << " protocols " << format("0x%" PRIx32, c.protocols) << "\n";
4886 if (c.protocols != 0)
4887 print_protocol_list32_t(c.protocols, info);
4888 outs() << "instanceProperties " << format("0x%" PRIx32, c.instanceProperties)
4890 if (c.instanceProperties != 0)
4891 print_objc_property_list32(c.instanceProperties, info);
4894 static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) {
4895 uint32_t i, left, offset, xoffset;
4896 uint64_t p, n_value;
4897 struct message_ref64 mr;
4898 const char *name, *sym_name;
4902 if (S == SectionRef())
4906 S.getName(SectName);
4907 DataRefImpl Ref = S.getRawDataRefImpl();
4908 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
4909 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
4911 for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) {
4912 p = S.getAddress() + i;
4913 r = get_pointer_64(p, offset, left, S, info);
4916 memset(&mr, '\0', sizeof(struct message_ref64));
4917 if (left < sizeof(struct message_ref64)) {
4918 memcpy(&mr, r, left);
4919 outs() << " (message_ref entends past the end of the section)\n";
4921 memcpy(&mr, r, sizeof(struct message_ref64));
4922 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4926 name = get_symbol_64(offset + offsetof(struct message_ref64, imp), S, info,
4929 outs() << format("0x%" PRIx64, n_value) << " ";
4931 outs() << "+ " << format("0x%" PRIx64, mr.imp) << " ";
4933 outs() << format("0x%" PRIx64, mr.imp) << " ";
4934 if (name != nullptr)
4935 outs() << " " << name;
4939 sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel), S,
4940 info, n_value, mr.sel);
4942 if (info->verbose && sym_name != nullptr)
4945 outs() << format("0x%" PRIx64, n_value);
4947 outs() << " + " << format("0x%" PRIx64, mr.sel);
4949 outs() << format("0x%" PRIx64, mr.sel);
4950 name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info);
4951 if (name != nullptr)
4952 outs() << format(" %.*s", left, name);
4955 offset += sizeof(struct message_ref64);
4959 static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) {
4960 uint32_t i, left, offset, xoffset, p;
4961 struct message_ref32 mr;
4962 const char *name, *r;
4965 if (S == SectionRef())
4969 S.getName(SectName);
4970 DataRefImpl Ref = S.getRawDataRefImpl();
4971 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
4972 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
4974 for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) {
4975 p = S.getAddress() + i;
4976 r = get_pointer_32(p, offset, left, S, info);
4979 memset(&mr, '\0', sizeof(struct message_ref32));
4980 if (left < sizeof(struct message_ref32)) {
4981 memcpy(&mr, r, left);
4982 outs() << " (message_ref entends past the end of the section)\n";
4984 memcpy(&mr, r, sizeof(struct message_ref32));
4985 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
4988 outs() << " imp " << format("0x%" PRIx32, mr.imp);
4989 name = get_symbol_32(offset + offsetof(struct message_ref32, imp), S, info,
4991 if (name != nullptr)
4992 outs() << " " << name;
4995 outs() << " sel " << format("0x%" PRIx32, mr.sel);
4996 name = get_pointer_32(mr.sel, xoffset, left, xS, info);
4997 if (name != nullptr)
4998 outs() << " " << name;
5001 offset += sizeof(struct message_ref32);
5005 static void print_image_info64(SectionRef S, struct DisassembleInfo *info) {
5006 uint32_t left, offset, swift_version;
5008 struct objc_image_info64 o;
5011 if (S == SectionRef())
5015 S.getName(SectName);
5016 DataRefImpl Ref = S.getRawDataRefImpl();
5017 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
5018 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
5020 r = get_pointer_64(p, offset, left, S, info);
5023 memset(&o, '\0', sizeof(struct objc_image_info64));
5024 if (left < sizeof(struct objc_image_info64)) {
5025 memcpy(&o, r, left);
5026 outs() << " (objc_image_info entends past the end of the section)\n";
5028 memcpy(&o, r, sizeof(struct objc_image_info64));
5029 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
5031 outs() << " version " << o.version << "\n";
5032 outs() << " flags " << format("0x%" PRIx32, o.flags);
5033 if (o.flags & OBJC_IMAGE_IS_REPLACEMENT)
5034 outs() << " OBJC_IMAGE_IS_REPLACEMENT";
5035 if (o.flags & OBJC_IMAGE_SUPPORTS_GC)
5036 outs() << " OBJC_IMAGE_SUPPORTS_GC";
5037 swift_version = (o.flags >> 8) & 0xff;
5038 if (swift_version != 0) {
5039 if (swift_version == 1)
5040 outs() << " Swift 1.0";
5041 else if (swift_version == 2)
5042 outs() << " Swift 1.1";
5044 outs() << " unknown future Swift version (" << swift_version << ")";
5049 static void print_image_info32(SectionRef S, struct DisassembleInfo *info) {
5050 uint32_t left, offset, swift_version, p;
5051 struct objc_image_info32 o;
5055 S.getName(SectName);
5056 DataRefImpl Ref = S.getRawDataRefImpl();
5057 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
5058 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
5060 r = get_pointer_32(p, offset, left, S, info);
5063 memset(&o, '\0', sizeof(struct objc_image_info32));
5064 if (left < sizeof(struct objc_image_info32)) {
5065 memcpy(&o, r, left);
5066 outs() << " (objc_image_info entends past the end of the section)\n";
5068 memcpy(&o, r, sizeof(struct objc_image_info32));
5069 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
5071 outs() << " version " << o.version << "\n";
5072 outs() << " flags " << format("0x%" PRIx32, o.flags);
5073 if (o.flags & OBJC_IMAGE_IS_REPLACEMENT)
5074 outs() << " OBJC_IMAGE_IS_REPLACEMENT";
5075 if (o.flags & OBJC_IMAGE_SUPPORTS_GC)
5076 outs() << " OBJC_IMAGE_SUPPORTS_GC";
5077 swift_version = (o.flags >> 8) & 0xff;
5078 if (swift_version != 0) {
5079 if (swift_version == 1)
5080 outs() << " Swift 1.0";
5081 else if (swift_version == 2)
5082 outs() << " Swift 1.1";
5084 outs() << " unknown future Swift version (" << swift_version << ")";
5089 static void print_image_info(SectionRef S, struct DisassembleInfo *info) {
5090 uint32_t left, offset, p;
5091 struct imageInfo_t o;
5095 S.getName(SectName);
5096 DataRefImpl Ref = S.getRawDataRefImpl();
5097 StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
5098 outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
5100 r = get_pointer_32(p, offset, left, S, info);
5103 memset(&o, '\0', sizeof(struct imageInfo_t));
5104 if (left < sizeof(struct imageInfo_t)) {
5105 memcpy(&o, r, left);
5106 outs() << " (imageInfo entends past the end of the section)\n";
5108 memcpy(&o, r, sizeof(struct imageInfo_t));
5109 if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
5111 outs() << " version " << o.version << "\n";
5112 outs() << " flags " << format("0x%" PRIx32, o.flags);
5118 outs() << " GC-only";
5124 static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) {
5125 SymbolAddressMap AddrMap;
5127 CreateSymbolAddressMap(O, &AddrMap);
5129 std::vector<SectionRef> Sections;
5130 for (const SectionRef &Section : O->sections()) {
5132 Section.getName(SectName);
5133 Sections.push_back(Section);
5136 struct DisassembleInfo info;
5137 // Set up the block of info used by the Symbolizer call backs.
5138 info.verbose = verbose;
5140 info.AddrMap = &AddrMap;
5141 info.Sections = &Sections;
5142 info.class_name = nullptr;
5143 info.selector_name = nullptr;
5144 info.method = nullptr;
5145 info.demangled_name = nullptr;
5146 info.bindtable = nullptr;
5151 const SectionRef CL = get_section(O, "__OBJC2", "__class_list");
5152 if (CL != SectionRef()) {
5154 walk_pointer_list_64("class", CL, O, &info, print_class64_t);
5156 const SectionRef CL = get_section(O, "__DATA", "__objc_classlist");
5158 walk_pointer_list_64("class", CL, O, &info, print_class64_t);
5161 const SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
5162 if (CR != SectionRef()) {
5164 walk_pointer_list_64("class refs", CR, O, &info, nullptr);
5166 const SectionRef CR = get_section(O, "__DATA", "__objc_classrefs");
5168 walk_pointer_list_64("class refs", CR, O, &info, nullptr);
5171 const SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
5172 if (SR != SectionRef()) {
5174 walk_pointer_list_64("super refs", SR, O, &info, nullptr);
5176 const SectionRef SR = get_section(O, "__DATA", "__objc_superrefs");
5178 walk_pointer_list_64("super refs", SR, O, &info, nullptr);
5181 const SectionRef CA = get_section(O, "__OBJC2", "__category_list");
5182 if (CA != SectionRef()) {
5184 walk_pointer_list_64("category", CA, O, &info, print_category64_t);
5186 const SectionRef CA = get_section(O, "__DATA", "__objc_catlist");
5188 walk_pointer_list_64("category", CA, O, &info, print_category64_t);
5191 const SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
5192 if (PL != SectionRef()) {
5194 walk_pointer_list_64("protocol", PL, O, &info, nullptr);
5196 const SectionRef PL = get_section(O, "__DATA", "__objc_protolist");
5198 walk_pointer_list_64("protocol", PL, O, &info, nullptr);
5201 const SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
5202 if (MR != SectionRef()) {
5204 print_message_refs64(MR, &info);
5206 const SectionRef MR = get_section(O, "__DATA", "__objc_msgrefs");
5208 print_message_refs64(MR, &info);
5211 const SectionRef II = get_section(O, "__OBJC2", "__image_info");
5212 if (II != SectionRef()) {
5214 print_image_info64(II, &info);
5216 const SectionRef II = get_section(O, "__DATA", "__objc_imageinfo");
5218 print_image_info64(II, &info);
5221 if (info.bindtable != nullptr)
5222 delete info.bindtable;
5225 static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) {
5226 SymbolAddressMap AddrMap;
5228 CreateSymbolAddressMap(O, &AddrMap);
5230 std::vector<SectionRef> Sections;
5231 for (const SectionRef &Section : O->sections()) {
5233 Section.getName(SectName);
5234 Sections.push_back(Section);
5237 struct DisassembleInfo info;
5238 // Set up the block of info used by the Symbolizer call backs.
5239 info.verbose = verbose;
5241 info.AddrMap = &AddrMap;
5242 info.Sections = &Sections;
5243 info.class_name = nullptr;
5244 info.selector_name = nullptr;
5245 info.method = nullptr;
5246 info.demangled_name = nullptr;
5247 info.bindtable = nullptr;
5251 const SectionRef CL = get_section(O, "__OBJC2", "__class_list");
5252 if (CL != SectionRef()) {
5254 walk_pointer_list_32("class", CL, O, &info, print_class32_t);
5256 const SectionRef CL = get_section(O, "__DATA", "__objc_classlist");
5258 walk_pointer_list_32("class", CL, O, &info, print_class32_t);
5261 const SectionRef CR = get_section(O, "__OBJC2", "__class_refs");
5262 if (CR != SectionRef()) {
5264 walk_pointer_list_32("class refs", CR, O, &info, nullptr);
5266 const SectionRef CR = get_section(O, "__DATA", "__objc_classrefs");
5268 walk_pointer_list_32("class refs", CR, O, &info, nullptr);
5271 const SectionRef SR = get_section(O, "__OBJC2", "__super_refs");
5272 if (SR != SectionRef()) {
5274 walk_pointer_list_32("super refs", SR, O, &info, nullptr);
5276 const SectionRef SR = get_section(O, "__DATA", "__objc_superrefs");
5278 walk_pointer_list_32("super refs", SR, O, &info, nullptr);
5281 const SectionRef CA = get_section(O, "__OBJC2", "__category_list");
5282 if (CA != SectionRef()) {
5284 walk_pointer_list_32("category", CA, O, &info, print_category32_t);
5286 const SectionRef CA = get_section(O, "__DATA", "__objc_catlist");
5288 walk_pointer_list_32("category", CA, O, &info, print_category32_t);
5291 const SectionRef PL = get_section(O, "__OBJC2", "__protocol_list");
5292 if (PL != SectionRef()) {
5294 walk_pointer_list_32("protocol", PL, O, &info, nullptr);
5296 const SectionRef PL = get_section(O, "__DATA", "__objc_protolist");
5298 walk_pointer_list_32("protocol", PL, O, &info, nullptr);
5301 const SectionRef MR = get_section(O, "__OBJC2", "__message_refs");
5302 if (MR != SectionRef()) {
5304 print_message_refs32(MR, &info);
5306 const SectionRef MR = get_section(O, "__DATA", "__objc_msgrefs");
5308 print_message_refs32(MR, &info);
5311 const SectionRef II = get_section(O, "__OBJC2", "__image_info");
5312 if (II != SectionRef()) {
5314 print_image_info32(II, &info);
5316 const SectionRef II = get_section(O, "__DATA", "__objc_imageinfo");
5318 print_image_info32(II, &info);
5322 static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) {
5323 uint32_t i, j, p, offset, xoffset, left, defs_left, def;
5324 const char *r, *name, *defs;
5325 struct objc_module_t module;
5327 struct objc_symtab_t symtab;
5328 struct objc_class_t objc_class;
5329 struct objc_category_t objc_category;
5331 outs() << "Objective-C segment\n";
5332 S = get_section(O, "__OBJC", "__module_info");
5333 if (S == SectionRef())
5336 SymbolAddressMap AddrMap;
5338 CreateSymbolAddressMap(O, &AddrMap);
5340 std::vector<SectionRef> Sections;
5341 for (const SectionRef &Section : O->sections()) {
5343 Section.getName(SectName);
5344 Sections.push_back(Section);
5347 struct DisassembleInfo info;
5348 // Set up the block of info used by the Symbolizer call backs.
5349 info.verbose = verbose;
5351 info.AddrMap = &AddrMap;
5352 info.Sections = &Sections;
5353 info.class_name = nullptr;
5354 info.selector_name = nullptr;
5355 info.method = nullptr;
5356 info.demangled_name = nullptr;
5357 info.bindtable = nullptr;
5361 for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) {
5362 p = S.getAddress() + i;
5363 r = get_pointer_32(p, offset, left, S, &info, true);
5366 memset(&module, '\0', sizeof(struct objc_module_t));
5367 if (left < sizeof(struct objc_module_t)) {
5368 memcpy(&module, r, left);
5369 outs() << " (module extends past end of __module_info section)\n";
5371 memcpy(&module, r, sizeof(struct objc_module_t));
5372 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5375 outs() << "Module " << format("0x%" PRIx32, p) << "\n";
5376 outs() << " version " << module.version << "\n";
5377 outs() << " size " << module.size << "\n";
5379 name = get_pointer_32(module.name, xoffset, left, xS, &info, true);
5380 if (name != nullptr)
5381 outs() << format("%.*s", left, name);
5383 outs() << format("0x%08" PRIx32, module.name)
5384 << "(not in an __OBJC section)";
5387 r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true);
5388 if (module.symtab == 0 || r == nullptr) {
5389 outs() << " symtab " << format("0x%08" PRIx32, module.symtab)
5390 << " (not in an __OBJC section)\n";
5393 outs() << " symtab " << format("0x%08" PRIx32, module.symtab) << "\n";
5394 memset(&symtab, '\0', sizeof(struct objc_symtab_t));
5397 if (left < sizeof(struct objc_symtab_t)) {
5398 memcpy(&symtab, r, left);
5399 outs() << "\tsymtab extends past end of an __OBJC section)\n";
5401 memcpy(&symtab, r, sizeof(struct objc_symtab_t));
5402 if (left > sizeof(struct objc_symtab_t)) {
5403 defs_left = left - sizeof(struct objc_symtab_t);
5404 defs = r + sizeof(struct objc_symtab_t);
5407 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5410 outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n";
5411 r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true);
5412 outs() << "\trefs " << format("0x%08" PRIx32, symtab.refs);
5414 outs() << " (not in an __OBJC section)";
5416 outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n";
5417 outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n";
5418 if (symtab.cls_def_cnt > 0)
5419 outs() << "\tClass Definitions\n";
5420 for (j = 0; j < symtab.cls_def_cnt; j++) {
5421 if ((j + 1) * sizeof(uint32_t) > defs_left) {
5422 outs() << "\t(remaining class defs entries entends past the end of the "
5426 memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t));
5427 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5428 sys::swapByteOrder(def);
5430 r = get_pointer_32(def, xoffset, left, xS, &info, true);
5431 outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32, def);
5433 if (left > sizeof(struct objc_class_t)) {
5435 memcpy(&objc_class, r, sizeof(struct objc_class_t));
5437 outs() << " (entends past the end of the section)\n";
5438 memset(&objc_class, '\0', sizeof(struct objc_class_t));
5439 memcpy(&objc_class, r, left);
5441 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5442 swapStruct(objc_class);
5443 print_objc_class_t(&objc_class, &info);
5445 outs() << "(not in an __OBJC section)\n";
5448 if (CLS_GETINFO(&objc_class, CLS_CLASS)) {
5449 outs() << "\tMeta Class";
5450 r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true);
5452 if (left > sizeof(struct objc_class_t)) {
5454 memcpy(&objc_class, r, sizeof(struct objc_class_t));
5456 outs() << " (entends past the end of the section)\n";
5457 memset(&objc_class, '\0', sizeof(struct objc_class_t));
5458 memcpy(&objc_class, r, left);
5460 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5461 swapStruct(objc_class);
5462 print_objc_class_t(&objc_class, &info);
5464 outs() << "(not in an __OBJC section)\n";
5468 if (symtab.cat_def_cnt > 0)
5469 outs() << "\tCategory Definitions\n";
5470 for (j = 0; j < symtab.cat_def_cnt; j++) {
5471 if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) {
5472 outs() << "\t(remaining category defs entries entends past the end of "
5473 << "the section)\n";
5476 memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t),
5478 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5479 sys::swapByteOrder(def);
5481 r = get_pointer_32(def, xoffset, left, xS, &info, true);
5482 outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] "
5483 << format("0x%08" PRIx32, def);
5485 if (left > sizeof(struct objc_category_t)) {
5487 memcpy(&objc_category, r, sizeof(struct objc_category_t));
5489 outs() << " (entends past the end of the section)\n";
5490 memset(&objc_category, '\0', sizeof(struct objc_category_t));
5491 memcpy(&objc_category, r, left);
5493 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5494 swapStruct(objc_category);
5495 print_objc_objc_category_t(&objc_category, &info);
5497 outs() << "(not in an __OBJC section)\n";
5501 const SectionRef II = get_section(O, "__OBJC", "__image_info");
5502 if (II != SectionRef())
5503 print_image_info(II, &info);
5508 static void DumpProtocolSection(MachOObjectFile *O, const char *sect,
5509 uint32_t size, uint32_t addr) {
5510 SymbolAddressMap AddrMap;
5511 CreateSymbolAddressMap(O, &AddrMap);
5513 std::vector<SectionRef> Sections;
5514 for (const SectionRef &Section : O->sections()) {
5516 Section.getName(SectName);
5517 Sections.push_back(Section);
5520 struct DisassembleInfo info;
5521 // Set up the block of info used by the Symbolizer call backs.
5522 info.verbose = true;
5524 info.AddrMap = &AddrMap;
5525 info.Sections = &Sections;
5526 info.class_name = nullptr;
5527 info.selector_name = nullptr;
5528 info.method = nullptr;
5529 info.demangled_name = nullptr;
5530 info.bindtable = nullptr;
5535 struct objc_protocol_t protocol;
5536 uint32_t left, paddr;
5537 for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) {
5538 memset(&protocol, '\0', sizeof(struct objc_protocol_t));
5539 left = size - (p - sect);
5540 if (left < sizeof(struct objc_protocol_t)) {
5541 outs() << "Protocol extends past end of __protocol section\n";
5542 memcpy(&protocol, p, left);
5544 memcpy(&protocol, p, sizeof(struct objc_protocol_t));
5545 if (O->isLittleEndian() != sys::IsLittleEndianHost)
5546 swapStruct(protocol);
5547 paddr = addr + (p - sect);
5548 outs() << "Protocol " << format("0x%" PRIx32, paddr);
5549 if (print_protocol(paddr, 0, &info))
5550 outs() << "(not in an __OBJC section)\n";
5554 static void printObjcMetaData(MachOObjectFile *O, bool verbose) {
5556 printObjc2_64bit_MetaData(O, verbose);
5558 MachO::mach_header H;
5560 if (H.cputype == MachO::CPU_TYPE_ARM)
5561 printObjc2_32bit_MetaData(O, verbose);
5563 // This is the 32-bit non-arm cputype case. Which is normally
5564 // the first Objective-C ABI. But it may be the case of a
5565 // binary for the iOS simulator which is the second Objective-C
5566 // ABI. In that case printObjc1_32bit_MetaData() will determine that
5567 // and return false.
5568 if (!printObjc1_32bit_MetaData(O, verbose))
5569 printObjc2_32bit_MetaData(O, verbose);
5574 // GuessLiteralPointer returns a string which for the item in the Mach-O file
5575 // for the address passed in as ReferenceValue for printing as a comment with
5576 // the instruction and also returns the corresponding type of that item
5577 // indirectly through ReferenceType.
5579 // If ReferenceValue is an address of literal cstring then a pointer to the
5580 // cstring is returned and ReferenceType is set to
5581 // LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr .
5583 // If ReferenceValue is an address of an Objective-C CFString, Selector ref or
5584 // Class ref that name is returned and the ReferenceType is set accordingly.
5586 // Lastly, literals which are Symbol address in a literal pool are looked for
5587 // and if found the symbol name is returned and ReferenceType is set to
5588 // LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr .
5590 // If there is no item in the Mach-O file for the address passed in as
5591 // ReferenceValue nullptr is returned and ReferenceType is unchanged.
5592 static const char *GuessLiteralPointer(uint64_t ReferenceValue,
5593 uint64_t ReferencePC,
5594 uint64_t *ReferenceType,
5595 struct DisassembleInfo *info) {
5596 // First see if there is an external relocation entry at the ReferencePC.
5597 if (info->O->getHeader().filetype == MachO::MH_OBJECT) {
5598 uint64_t sect_addr = info->S.getAddress();
5599 uint64_t sect_offset = ReferencePC - sect_addr;
5600 bool reloc_found = false;
5602 MachO::any_relocation_info RE;
5603 bool isExtern = false;
5605 for (const RelocationRef &Reloc : info->S.relocations()) {
5606 uint64_t RelocOffset = Reloc.getOffset();
5607 if (RelocOffset == sect_offset) {
5608 Rel = Reloc.getRawDataRefImpl();
5609 RE = info->O->getRelocation(Rel);
5610 if (info->O->isRelocationScattered(RE))
5612 isExtern = info->O->getPlainRelocationExternal(RE);
5614 symbol_iterator RelocSym = Reloc.getSymbol();
5621 // If there is an external relocation entry for a symbol in a section
5622 // then used that symbol's value for the value of the reference.
5623 if (reloc_found && isExtern) {
5624 if (info->O->getAnyRelocationPCRel(RE)) {
5625 unsigned Type = info->O->getAnyRelocationType(RE);
5626 if (Type == MachO::X86_64_RELOC_SIGNED) {
5627 ReferenceValue = Symbol.getValue();
5633 // Look for literals such as Objective-C CFStrings refs, Selector refs,
5634 // Message refs and Class refs.
5635 bool classref, selref, msgref, cfstring;
5636 uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref,
5637 selref, msgref, cfstring);
5638 if (classref && pointer_value == 0) {
5639 // Note the ReferenceValue is a pointer into the __objc_classrefs section.
5640 // And the pointer_value in that section is typically zero as it will be
5641 // set by dyld as part of the "bind information".
5642 const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info);
5643 if (name != nullptr) {
5644 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
5645 const char *class_name = strrchr(name, '$');
5646 if (class_name != nullptr && class_name[1] == '_' &&
5647 class_name[2] != '\0') {
5648 info->class_name = class_name + 2;
5655 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref;
5657 get_objc2_64bit_class_name(pointer_value, ReferenceValue, info);
5658 if (name != nullptr)
5659 info->class_name = name;
5661 name = "bad class ref";
5666 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref;
5667 const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info);
5671 if (selref && pointer_value == 0)
5672 pointer_value = get_objc2_64bit_selref(ReferenceValue, info);
5674 if (pointer_value != 0)
5675 ReferenceValue = pointer_value;
5677 const char *name = GuessCstringPointer(ReferenceValue, info);
5679 if (pointer_value != 0 && selref) {
5680 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref;
5681 info->selector_name = name;
5682 } else if (pointer_value != 0 && msgref) {
5683 info->class_name = nullptr;
5684 *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref;
5685 info->selector_name = name;
5687 *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr;
5691 // Lastly look for an indirect symbol with this ReferenceValue which is in
5692 // a literal pool. If found return that symbol name.
5693 name = GuessIndirectSymbol(ReferenceValue, info);
5695 *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr;
5702 // SymbolizerSymbolLookUp is the symbol lookup function passed when creating
5703 // the Symbolizer. It looks up the ReferenceValue using the info passed via the
5704 // pointer to the struct DisassembleInfo that was passed when MCSymbolizer
5705 // is created and returns the symbol name that matches the ReferenceValue or
5706 // nullptr if none. The ReferenceType is passed in for the IN type of
5707 // reference the instruction is making from the values in defined in the header
5708 // "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific
5709 // Out type and the ReferenceName will also be set which is added as a comment
5710 // to the disassembled instruction.
5713 // If the symbol name is a C++ mangled name then the demangled name is
5714 // returned through ReferenceName and ReferenceType is set to
5715 // LLVMDisassembler_ReferenceType_DeMangled_Name .
5718 // When this is called to get a symbol name for a branch target then the
5719 // ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then
5720 // SymbolValue will be looked for in the indirect symbol table to determine if
5721 // it is an address for a symbol stub. If so then the symbol name for that
5722 // stub is returned indirectly through ReferenceName and then ReferenceType is
5723 // set to LLVMDisassembler_ReferenceType_Out_SymbolStub.
5725 // When this is called with an value loaded via a PC relative load then
5726 // ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the
5727 // SymbolValue is checked to be an address of literal pointer, symbol pointer,
5728 // or an Objective-C meta data reference. If so the output ReferenceType is
5729 // set to correspond to that as well as setting the ReferenceName.
5730 static const char *SymbolizerSymbolLookUp(void *DisInfo,
5731 uint64_t ReferenceValue,
5732 uint64_t *ReferenceType,
5733 uint64_t ReferencePC,
5734 const char **ReferenceName) {
5735 struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo;
5736 // If no verbose symbolic information is wanted then just return nullptr.
5737 if (!info->verbose) {
5738 *ReferenceName = nullptr;
5739 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5743 const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap);
5745 if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch) {
5746 *ReferenceName = GuessIndirectSymbol(ReferenceValue, info);
5747 if (*ReferenceName != nullptr) {
5748 method_reference(info, ReferenceType, ReferenceName);
5749 if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message)
5750 *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub;
5753 if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
5754 if (info->demangled_name != nullptr)
5755 free(info->demangled_name);
5757 info->demangled_name =
5758 abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
5759 if (info->demangled_name != nullptr) {
5760 *ReferenceName = info->demangled_name;
5761 *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
5763 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5766 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5767 } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load) {
5769 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5771 method_reference(info, ReferenceType, ReferenceName);
5773 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5774 // If this is arm64 and the reference is an adrp instruction save the
5775 // instruction, passed in ReferenceValue and the address of the instruction
5776 // for use later if we see and add immediate instruction.
5777 } else if (info->O->getArch() == Triple::aarch64 &&
5778 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP) {
5779 info->adrp_inst = ReferenceValue;
5780 info->adrp_addr = ReferencePC;
5781 SymbolName = nullptr;
5782 *ReferenceName = nullptr;
5783 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5784 // If this is arm64 and reference is an add immediate instruction and we
5786 // seen an adrp instruction just before it and the adrp's Xd register
5788 // this add's Xn register reconstruct the value being referenced and look to
5789 // see if it is a literal pointer. Note the add immediate instruction is
5790 // passed in ReferenceValue.
5791 } else if (info->O->getArch() == Triple::aarch64 &&
5792 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri &&
5793 ReferencePC - 4 == info->adrp_addr &&
5794 (info->adrp_inst & 0x9f000000) == 0x90000000 &&
5795 (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
5796 uint32_t addxri_inst;
5797 uint64_t adrp_imm, addxri_imm;
5800 ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
5801 if (info->adrp_inst & 0x0200000)
5802 adrp_imm |= 0xfffffffffc000000LL;
5804 addxri_inst = ReferenceValue;
5805 addxri_imm = (addxri_inst >> 10) & 0xfff;
5806 if (((addxri_inst >> 22) & 0x3) == 1)
5809 ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
5810 (adrp_imm << 12) + addxri_imm;
5813 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5814 if (*ReferenceName == nullptr)
5815 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5816 // If this is arm64 and the reference is a load register instruction and we
5817 // have seen an adrp instruction just before it and the adrp's Xd register
5818 // matches this add's Xn register reconstruct the value being referenced and
5819 // look to see if it is a literal pointer. Note the load register
5820 // instruction is passed in ReferenceValue.
5821 } else if (info->O->getArch() == Triple::aarch64 &&
5822 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui &&
5823 ReferencePC - 4 == info->adrp_addr &&
5824 (info->adrp_inst & 0x9f000000) == 0x90000000 &&
5825 (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) {
5826 uint32_t ldrxui_inst;
5827 uint64_t adrp_imm, ldrxui_imm;
5830 ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3);
5831 if (info->adrp_inst & 0x0200000)
5832 adrp_imm |= 0xfffffffffc000000LL;
5834 ldrxui_inst = ReferenceValue;
5835 ldrxui_imm = (ldrxui_inst >> 10) & 0xfff;
5837 ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) +
5838 (adrp_imm << 12) + (ldrxui_imm << 3);
5841 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5842 if (*ReferenceName == nullptr)
5843 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5845 // If this arm64 and is an load register (PC-relative) instruction the
5846 // ReferenceValue is the PC plus the immediate value.
5847 else if (info->O->getArch() == Triple::aarch64 &&
5848 (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl ||
5849 *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR)) {
5851 GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info);
5852 if (*ReferenceName == nullptr)
5853 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5856 else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) {
5857 if (info->demangled_name != nullptr)
5858 free(info->demangled_name);
5860 info->demangled_name =
5861 abi::__cxa_demangle(SymbolName + 1, nullptr, nullptr, &status);
5862 if (info->demangled_name != nullptr) {
5863 *ReferenceName = info->demangled_name;
5864 *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name;
5869 *ReferenceName = nullptr;
5870 *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
5876 /// \brief Emits the comments that are stored in the CommentStream.
5877 /// Each comment in the CommentStream must end with a newline.
5878 static void emitComments(raw_svector_ostream &CommentStream,
5879 SmallString<128> &CommentsToEmit,
5880 formatted_raw_ostream &FormattedOS,
5881 const MCAsmInfo &MAI) {
5882 // Flush the stream before taking its content.
5883 StringRef Comments = CommentsToEmit.str();
5884 // Get the default information for printing a comment.
5885 const char *CommentBegin = MAI.getCommentString();
5886 unsigned CommentColumn = MAI.getCommentColumn();
5887 bool IsFirst = true;
5888 while (!Comments.empty()) {
5890 FormattedOS << '\n';
5891 // Emit a line of comments.
5892 FormattedOS.PadToColumn(CommentColumn);
5893 size_t Position = Comments.find('\n');
5894 FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position);
5895 // Move after the newline character.
5896 Comments = Comments.substr(Position + 1);
5899 FormattedOS.flush();
5901 // Tell the comment stream that the vector changed underneath it.
5902 CommentsToEmit.clear();
5905 static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF,
5906 StringRef DisSegName, StringRef DisSectName) {
5907 const char *McpuDefault = nullptr;
5908 const Target *ThumbTarget = nullptr;
5909 const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget);
5911 // GetTarget prints out stuff.
5914 if (MCPU.empty() && McpuDefault)
5917 std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo());
5918 std::unique_ptr<const MCInstrInfo> ThumbInstrInfo;
5920 ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo());
5922 // Package up features to be passed to target/subtarget
5923 std::string FeaturesStr;
5924 if (MAttrs.size()) {
5925 SubtargetFeatures Features;
5926 for (unsigned i = 0; i != MAttrs.size(); ++i)
5927 Features.AddFeature(MAttrs[i]);
5928 FeaturesStr = Features.getString();
5931 // Set up disassembler.
5932 std::unique_ptr<const MCRegisterInfo> MRI(
5933 TheTarget->createMCRegInfo(TripleName));
5934 std::unique_ptr<const MCAsmInfo> AsmInfo(
5935 TheTarget->createMCAsmInfo(*MRI, TripleName));
5936 std::unique_ptr<const MCSubtargetInfo> STI(
5937 TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
5938 MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr);
5939 std::unique_ptr<MCDisassembler> DisAsm(
5940 TheTarget->createMCDisassembler(*STI, Ctx));
5941 std::unique_ptr<MCSymbolizer> Symbolizer;
5942 struct DisassembleInfo SymbolizerInfo;
5943 std::unique_ptr<MCRelocationInfo> RelInfo(
5944 TheTarget->createMCRelocationInfo(TripleName, Ctx));
5946 Symbolizer.reset(TheTarget->createMCSymbolizer(
5947 TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
5948 &SymbolizerInfo, &Ctx, std::move(RelInfo)));
5949 DisAsm->setSymbolizer(std::move(Symbolizer));
5951 int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
5952 std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
5953 Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI));
5954 // Set the display preference for hex vs. decimal immediates.
5955 IP->setPrintImmHex(PrintImmHex);
5956 // Comment stream and backing vector.
5957 SmallString<128> CommentsToEmit;
5958 raw_svector_ostream CommentStream(CommentsToEmit);
5959 // FIXME: Setting the CommentStream in the InstPrinter is problematic in that
5960 // if it is done then arm64 comments for string literals don't get printed
5961 // and some constant get printed instead and not setting it causes intel
5962 // (32-bit and 64-bit) comments printed with different spacing before the
5963 // comment causing different diffs with the 'C' disassembler library API.
5964 // IP->setCommentStream(CommentStream);
5966 if (!AsmInfo || !STI || !DisAsm || !IP) {
5967 errs() << "error: couldn't initialize disassembler for target "
5968 << TripleName << '\n';
5972 // Set up thumb disassembler.
5973 std::unique_ptr<const MCRegisterInfo> ThumbMRI;
5974 std::unique_ptr<const MCAsmInfo> ThumbAsmInfo;
5975 std::unique_ptr<const MCSubtargetInfo> ThumbSTI;
5976 std::unique_ptr<MCDisassembler> ThumbDisAsm;
5977 std::unique_ptr<MCInstPrinter> ThumbIP;
5978 std::unique_ptr<MCContext> ThumbCtx;
5979 std::unique_ptr<MCSymbolizer> ThumbSymbolizer;
5980 struct DisassembleInfo ThumbSymbolizerInfo;
5981 std::unique_ptr<MCRelocationInfo> ThumbRelInfo;
5983 ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName));
5985 ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName));
5987 ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MCPU, FeaturesStr));
5988 ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr));
5989 ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx));
5990 MCContext *PtrThumbCtx = ThumbCtx.get();
5992 ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx));
5994 ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer(
5995 ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp,
5996 &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo)));
5997 ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer));
5999 int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect();
6000 ThumbIP.reset(ThumbTarget->createMCInstPrinter(
6001 Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo,
6002 *ThumbInstrInfo, *ThumbMRI));
6003 // Set the display preference for hex vs. decimal immediates.
6004 ThumbIP->setPrintImmHex(PrintImmHex);
6007 if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) {
6008 errs() << "error: couldn't initialize disassembler for target "
6009 << ThumbTripleName << '\n';
6013 MachO::mach_header Header = MachOOF->getHeader();
6015 // FIXME: Using the -cfg command line option, this code used to be able to
6016 // annotate relocations with the referenced symbol's name, and if this was
6017 // inside a __[cf]string section, the data it points to. This is now replaced
6018 // by the upcoming MCSymbolizer, which needs the appropriate setup done above.
6019 std::vector<SectionRef> Sections;
6020 std::vector<SymbolRef> Symbols;
6021 SmallVector<uint64_t, 8> FoundFns;
6022 uint64_t BaseSegmentAddress;
6024 getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns,
6025 BaseSegmentAddress);
6027 // Sort the symbols by address, just in case they didn't come in that way.
6028 std::sort(Symbols.begin(), Symbols.end(), SymbolSorter());
6030 // Build a data in code table that is sorted on by the address of each entry.
6031 uint64_t BaseAddress = 0;
6032 if (Header.filetype == MachO::MH_OBJECT)
6033 BaseAddress = Sections[0].getAddress();
6035 BaseAddress = BaseSegmentAddress;
6037 for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices();
6040 DI->getOffset(Offset);
6041 Dices.push_back(std::make_pair(BaseAddress + Offset, *DI));
6043 array_pod_sort(Dices.begin(), Dices.end());
6046 raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
6048 raw_ostream &DebugOut = nulls();
6051 std::unique_ptr<DIContext> diContext;
6052 ObjectFile *DbgObj = MachOOF;
6053 // Try to find debug info and set up the DIContext for it.
6055 // A separate DSym file path was specified, parse it as a macho file,
6056 // get the sections and supply it to the section name parsing machinery.
6057 if (!DSYMFile.empty()) {
6058 ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr =
6059 MemoryBuffer::getFileOrSTDIN(DSYMFile);
6060 if (std::error_code EC = BufOrErr.getError()) {
6061 errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n';
6065 ObjectFile::createMachOObjectFile(BufOrErr.get()->getMemBufferRef())
6070 // Setup the DIContext
6071 diContext.reset(new DWARFContextInMemory(*DbgObj));
6074 if (FilterSections.size() == 0)
6075 outs() << "(" << DisSegName << "," << DisSectName << ") section\n";
6077 for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) {
6079 if (Sections[SectIdx].getName(SectName) || SectName != DisSectName)
6082 DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl();
6084 StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR);
6085 if (SegmentName != DisSegName)
6089 Sections[SectIdx].getContents(BytesStr);
6090 ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
6092 uint64_t SectAddress = Sections[SectIdx].getAddress();
6094 bool symbolTableWorked = false;
6096 // Create a map of symbol addresses to symbol names for use by
6097 // the SymbolizerSymbolLookUp() routine.
6098 SymbolAddressMap AddrMap;
6099 bool DisSymNameFound = false;
6100 for (const SymbolRef &Symbol : MachOOF->symbols()) {
6101 SymbolRef::Type ST = Symbol.getType();
6102 if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data ||
6103 ST == SymbolRef::ST_Other) {
6104 uint64_t Address = Symbol.getValue();
6105 ErrorOr<StringRef> SymNameOrErr = Symbol.getName();
6106 if (std::error_code EC = SymNameOrErr.getError())
6107 report_fatal_error(EC.message());
6108 StringRef SymName = *SymNameOrErr;
6109 AddrMap[Address] = SymName;
6110 if (!DisSymName.empty() && DisSymName == SymName)
6111 DisSymNameFound = true;
6114 if (!DisSymName.empty() && !DisSymNameFound) {
6115 outs() << "Can't find -dis-symname: " << DisSymName << "\n";
6118 // Set up the block of info used by the Symbolizer call backs.
6119 SymbolizerInfo.verbose = !NoSymbolicOperands;
6120 SymbolizerInfo.O = MachOOF;
6121 SymbolizerInfo.S = Sections[SectIdx];
6122 SymbolizerInfo.AddrMap = &AddrMap;
6123 SymbolizerInfo.Sections = &Sections;
6124 SymbolizerInfo.class_name = nullptr;
6125 SymbolizerInfo.selector_name = nullptr;
6126 SymbolizerInfo.method = nullptr;
6127 SymbolizerInfo.demangled_name = nullptr;
6128 SymbolizerInfo.bindtable = nullptr;
6129 SymbolizerInfo.adrp_addr = 0;
6130 SymbolizerInfo.adrp_inst = 0;
6131 // Same for the ThumbSymbolizer
6132 ThumbSymbolizerInfo.verbose = !NoSymbolicOperands;
6133 ThumbSymbolizerInfo.O = MachOOF;
6134 ThumbSymbolizerInfo.S = Sections[SectIdx];
6135 ThumbSymbolizerInfo.AddrMap = &AddrMap;
6136 ThumbSymbolizerInfo.Sections = &Sections;
6137 ThumbSymbolizerInfo.class_name = nullptr;
6138 ThumbSymbolizerInfo.selector_name = nullptr;
6139 ThumbSymbolizerInfo.method = nullptr;
6140 ThumbSymbolizerInfo.demangled_name = nullptr;
6141 ThumbSymbolizerInfo.bindtable = nullptr;
6142 ThumbSymbolizerInfo.adrp_addr = 0;
6143 ThumbSymbolizerInfo.adrp_inst = 0;
6145 // Disassemble symbol by symbol.
6146 for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) {
6147 ErrorOr<StringRef> SymNameOrErr = Symbols[SymIdx].getName();
6148 if (std::error_code EC = SymNameOrErr.getError())
6149 report_fatal_error(EC.message());
6150 StringRef SymName = *SymNameOrErr;
6152 SymbolRef::Type ST = Symbols[SymIdx].getType();
6153 if (ST != SymbolRef::ST_Function)
6156 // Make sure the symbol is defined in this section.
6157 bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]);
6161 // If we are only disassembling one symbol see if this is that symbol.
6162 if (!DisSymName.empty() && DisSymName != SymName)
6165 // Start at the address of the symbol relative to the section's address.
6166 uint64_t Start = Symbols[SymIdx].getValue();
6167 uint64_t SectionAddress = Sections[SectIdx].getAddress();
6168 Start -= SectionAddress;
6170 // Stop disassembling either at the beginning of the next symbol or at
6171 // the end of the section.
6172 bool containsNextSym = false;
6173 uint64_t NextSym = 0;
6174 uint64_t NextSymIdx = SymIdx + 1;
6175 while (Symbols.size() > NextSymIdx) {
6176 SymbolRef::Type NextSymType = Symbols[NextSymIdx].getType();
6177 if (NextSymType == SymbolRef::ST_Function) {
6179 Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]);
6180 NextSym = Symbols[NextSymIdx].getValue();
6181 NextSym -= SectionAddress;
6187 uint64_t SectSize = Sections[SectIdx].getSize();
6188 uint64_t End = containsNextSym ? NextSym : SectSize;
6191 symbolTableWorked = true;
6193 DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl();
6195 (MachOOF->getSymbolFlags(Symb) & SymbolRef::SF_Thumb) && ThumbTarget;
6197 outs() << SymName << ":\n";
6198 DILineInfo lastLine;
6199 for (uint64_t Index = Start; Index < End; Index += Size) {
6202 uint64_t PC = SectAddress + Index;
6203 if (!NoLeadingAddr) {
6204 if (FullLeadingAddr) {
6205 if (MachOOF->is64Bit())
6206 outs() << format("%016" PRIx64, PC);
6208 outs() << format("%08" PRIx64, PC);
6210 outs() << format("%8" PRIx64 ":", PC);
6216 // Check the data in code table here to see if this is data not an
6217 // instruction to be disassembled.
6219 Dice.push_back(std::make_pair(PC, DiceRef()));
6220 dice_table_iterator DTI =
6221 std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(),
6222 compareDiceTableEntries);
6223 if (DTI != Dices.end()) {
6225 DTI->second.getLength(Length);
6227 DTI->second.getKind(Kind);
6228 Size = DumpDataInCode(Bytes.data() + Index, Length, Kind);
6229 if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) &&
6230 (PC == (DTI->first + Length - 1)) && (Length & 1))
6235 SmallVector<char, 64> AnnotationsBytes;
6236 raw_svector_ostream Annotations(AnnotationsBytes);
6240 gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
6241 PC, DebugOut, Annotations);
6243 gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC,
6244 DebugOut, Annotations);
6246 if (!NoShowRawInsn) {
6247 dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs());
6249 formatted_raw_ostream FormattedOS(outs());
6250 StringRef AnnotationsStr = Annotations.str();
6252 ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI);
6254 IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI);
6255 emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo);
6257 // Print debug info.
6259 DILineInfo dli = diContext->getLineInfoForAddress(PC);
6260 // Print valid line info if it changed.
6261 if (dli != lastLine && dli.Line != 0)
6262 outs() << "\t## " << dli.FileName << ':' << dli.Line << ':'
6268 unsigned int Arch = MachOOF->getArch();
6269 if (Arch == Triple::x86_64 || Arch == Triple::x86) {
6270 outs() << format("\t.byte 0x%02x #bad opcode\n",
6271 *(Bytes.data() + Index) & 0xff);
6272 Size = 1; // skip exactly one illegible byte and move on.
6273 } else if (Arch == Triple::aarch64) {
6274 uint32_t opcode = (*(Bytes.data() + Index) & 0xff) |
6275 (*(Bytes.data() + Index + 1) & 0xff) << 8 |
6276 (*(Bytes.data() + Index + 2) & 0xff) << 16 |
6277 (*(Bytes.data() + Index + 3) & 0xff) << 24;
6278 outs() << format("\t.long\t0x%08x\n", opcode);
6281 errs() << "llvm-objdump: warning: invalid instruction encoding\n";
6283 Size = 1; // skip illegible bytes
6288 if (!symbolTableWorked) {
6289 // Reading the symbol table didn't work, disassemble the whole section.
6290 uint64_t SectAddress = Sections[SectIdx].getAddress();
6291 uint64_t SectSize = Sections[SectIdx].getSize();
6293 for (uint64_t Index = 0; Index < SectSize; Index += InstSize) {
6296 uint64_t PC = SectAddress + Index;
6297 if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC,
6298 DebugOut, nulls())) {
6299 if (!NoLeadingAddr) {
6300 if (FullLeadingAddr) {
6301 if (MachOOF->is64Bit())
6302 outs() << format("%016" PRIx64, PC);
6304 outs() << format("%08" PRIx64, PC);
6306 outs() << format("%8" PRIx64 ":", PC);
6309 if (!NoShowRawInsn) {
6311 dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs());
6313 IP->printInst(&Inst, outs(), "", *STI);
6316 unsigned int Arch = MachOOF->getArch();
6317 if (Arch == Triple::x86_64 || Arch == Triple::x86) {
6318 outs() << format("\t.byte 0x%02x #bad opcode\n",
6319 *(Bytes.data() + Index) & 0xff);
6320 InstSize = 1; // skip exactly one illegible byte and move on.
6322 errs() << "llvm-objdump: warning: invalid instruction encoding\n";
6324 InstSize = 1; // skip illegible bytes
6329 // The TripleName's need to be reset if we are called again for a different
6332 ThumbTripleName = "";
6334 if (SymbolizerInfo.method != nullptr)
6335 free(SymbolizerInfo.method);
6336 if (SymbolizerInfo.demangled_name != nullptr)
6337 free(SymbolizerInfo.demangled_name);
6338 if (SymbolizerInfo.bindtable != nullptr)
6339 delete SymbolizerInfo.bindtable;
6340 if (ThumbSymbolizerInfo.method != nullptr)
6341 free(ThumbSymbolizerInfo.method);
6342 if (ThumbSymbolizerInfo.demangled_name != nullptr)
6343 free(ThumbSymbolizerInfo.demangled_name);
6344 if (ThumbSymbolizerInfo.bindtable != nullptr)
6345 delete ThumbSymbolizerInfo.bindtable;
6349 //===----------------------------------------------------------------------===//
6350 // __compact_unwind section dumping
6351 //===----------------------------------------------------------------------===//
6355 template <typename T> static uint64_t readNext(const char *&Buf) {
6356 using llvm::support::little;
6357 using llvm::support::unaligned;
6359 uint64_t Val = support::endian::read<T, little, unaligned>(Buf);
6364 struct CompactUnwindEntry {
6365 uint32_t OffsetInSection;
6367 uint64_t FunctionAddr;
6369 uint32_t CompactEncoding;
6370 uint64_t PersonalityAddr;
6373 RelocationRef FunctionReloc;
6374 RelocationRef PersonalityReloc;
6375 RelocationRef LSDAReloc;
6377 CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64)
6378 : OffsetInSection(Offset) {
6380 read<uint64_t>(Contents.data() + Offset);
6382 read<uint32_t>(Contents.data() + Offset);
6386 template <typename UIntPtr> void read(const char *Buf) {
6387 FunctionAddr = readNext<UIntPtr>(Buf);
6388 Length = readNext<uint32_t>(Buf);
6389 CompactEncoding = readNext<uint32_t>(Buf);
6390 PersonalityAddr = readNext<UIntPtr>(Buf);
6391 LSDAAddr = readNext<UIntPtr>(Buf);
6396 /// Given a relocation from __compact_unwind, consisting of the RelocationRef
6397 /// and data being relocated, determine the best base Name and Addend to use for
6398 /// display purposes.
6400 /// 1. An Extern relocation will directly reference a symbol (and the data is
6401 /// then already an addend), so use that.
6402 /// 2. Otherwise the data is an offset in the object file's layout; try to find
6403 // a symbol before it in the same section, and use the offset from there.
6404 /// 3. Finally, if all that fails, fall back to an offset from the start of the
6405 /// referenced section.
6406 static void findUnwindRelocNameAddend(const MachOObjectFile *Obj,
6407 std::map<uint64_t, SymbolRef> &Symbols,
6408 const RelocationRef &Reloc, uint64_t Addr,
6409 StringRef &Name, uint64_t &Addend) {
6410 if (Reloc.getSymbol() != Obj->symbol_end()) {
6411 ErrorOr<StringRef> NameOrErr = Reloc.getSymbol()->getName();
6412 if (std::error_code EC = NameOrErr.getError())
6413 report_fatal_error(EC.message());
6419 auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl());
6420 SectionRef RelocSection = Obj->getAnyRelocationSection(RE);
6422 uint64_t SectionAddr = RelocSection.getAddress();
6424 auto Sym = Symbols.upper_bound(Addr);
6425 if (Sym == Symbols.begin()) {
6426 // The first symbol in the object is after this reference, the best we can
6427 // do is section-relative notation.
6428 RelocSection.getName(Name);
6429 Addend = Addr - SectionAddr;
6433 // Go back one so that SymbolAddress <= Addr.
6436 section_iterator SymSection = *Sym->second.getSection();
6437 if (RelocSection == *SymSection) {
6438 // There's a valid symbol in the same section before this reference.
6439 ErrorOr<StringRef> NameOrErr = Sym->second.getName();
6440 if (std::error_code EC = NameOrErr.getError())
6441 report_fatal_error(EC.message());
6443 Addend = Addr - Sym->first;
6447 // There is a symbol before this reference, but it's in a different
6448 // section. Probably not helpful to mention it, so use the section name.
6449 RelocSection.getName(Name);
6450 Addend = Addr - SectionAddr;
6453 static void printUnwindRelocDest(const MachOObjectFile *Obj,
6454 std::map<uint64_t, SymbolRef> &Symbols,
6455 const RelocationRef &Reloc, uint64_t Addr) {
6459 if (!Reloc.getObject())
6462 findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend);
6466 outs() << " + " << format("0x%" PRIx64, Addend);
6470 printMachOCompactUnwindSection(const MachOObjectFile *Obj,
6471 std::map<uint64_t, SymbolRef> &Symbols,
6472 const SectionRef &CompactUnwind) {
6474 assert(Obj->isLittleEndian() &&
6475 "There should not be a big-endian .o with __compact_unwind");
6477 bool Is64 = Obj->is64Bit();
6478 uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t);
6479 uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t);
6482 CompactUnwind.getContents(Contents);
6484 SmallVector<CompactUnwindEntry, 4> CompactUnwinds;
6486 // First populate the initial raw offsets, encodings and so on from the entry.
6487 for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) {
6488 CompactUnwindEntry Entry(Contents.data(), Offset, Is64);
6489 CompactUnwinds.push_back(Entry);
6492 // Next we need to look at the relocations to find out what objects are
6493 // actually being referred to.
6494 for (const RelocationRef &Reloc : CompactUnwind.relocations()) {
6495 uint64_t RelocAddress = Reloc.getOffset();
6497 uint32_t EntryIdx = RelocAddress / EntrySize;
6498 uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize;
6499 CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx];
6501 if (OffsetInEntry == 0)
6502 Entry.FunctionReloc = Reloc;
6503 else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t))
6504 Entry.PersonalityReloc = Reloc;
6505 else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t))
6506 Entry.LSDAReloc = Reloc;
6508 llvm_unreachable("Unexpected relocation in __compact_unwind section");
6511 // Finally, we're ready to print the data we've gathered.
6512 outs() << "Contents of __compact_unwind section:\n";
6513 for (auto &Entry : CompactUnwinds) {
6514 outs() << " Entry at offset "
6515 << format("0x%" PRIx32, Entry.OffsetInSection) << ":\n";
6517 // 1. Start of the region this entry applies to.
6518 outs() << " start: " << format("0x%" PRIx64,
6519 Entry.FunctionAddr) << ' ';
6520 printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr);
6523 // 2. Length of the region this entry applies to.
6524 outs() << " length: " << format("0x%" PRIx32, Entry.Length)
6526 // 3. The 32-bit compact encoding.
6527 outs() << " compact encoding: "
6528 << format("0x%08" PRIx32, Entry.CompactEncoding) << '\n';
6530 // 4. The personality function, if present.
6531 if (Entry.PersonalityReloc.getObject()) {
6532 outs() << " personality function: "
6533 << format("0x%" PRIx64, Entry.PersonalityAddr) << ' ';
6534 printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc,
6535 Entry.PersonalityAddr);
6539 // 5. This entry's language-specific data area.
6540 if (Entry.LSDAReloc.getObject()) {
6541 outs() << " LSDA: " << format("0x%" PRIx64,
6542 Entry.LSDAAddr) << ' ';
6543 printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr);
6549 //===----------------------------------------------------------------------===//
6550 // __unwind_info section dumping
6551 //===----------------------------------------------------------------------===//
6553 static void printRegularSecondLevelUnwindPage(const char *PageStart) {
6554 const char *Pos = PageStart;
6555 uint32_t Kind = readNext<uint32_t>(Pos);
6557 assert(Kind == 2 && "kind for a regular 2nd level index should be 2");
6559 uint16_t EntriesStart = readNext<uint16_t>(Pos);
6560 uint16_t NumEntries = readNext<uint16_t>(Pos);
6562 Pos = PageStart + EntriesStart;
6563 for (unsigned i = 0; i < NumEntries; ++i) {
6564 uint32_t FunctionOffset = readNext<uint32_t>(Pos);
6565 uint32_t Encoding = readNext<uint32_t>(Pos);
6567 outs() << " [" << i << "]: "
6568 << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
6570 << "encoding=" << format("0x%08" PRIx32, Encoding) << '\n';
6574 static void printCompressedSecondLevelUnwindPage(
6575 const char *PageStart, uint32_t FunctionBase,
6576 const SmallVectorImpl<uint32_t> &CommonEncodings) {
6577 const char *Pos = PageStart;
6578 uint32_t Kind = readNext<uint32_t>(Pos);
6580 assert(Kind == 3 && "kind for a compressed 2nd level index should be 3");
6582 uint16_t EntriesStart = readNext<uint16_t>(Pos);
6583 uint16_t NumEntries = readNext<uint16_t>(Pos);
6585 uint16_t EncodingsStart = readNext<uint16_t>(Pos);
6586 readNext<uint16_t>(Pos);
6587 const auto *PageEncodings = reinterpret_cast<const support::ulittle32_t *>(
6588 PageStart + EncodingsStart);
6590 Pos = PageStart + EntriesStart;
6591 for (unsigned i = 0; i < NumEntries; ++i) {
6592 uint32_t Entry = readNext<uint32_t>(Pos);
6593 uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff);
6594 uint32_t EncodingIdx = Entry >> 24;
6597 if (EncodingIdx < CommonEncodings.size())
6598 Encoding = CommonEncodings[EncodingIdx];
6600 Encoding = PageEncodings[EncodingIdx - CommonEncodings.size()];
6602 outs() << " [" << i << "]: "
6603 << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
6605 << "encoding[" << EncodingIdx
6606 << "]=" << format("0x%08" PRIx32, Encoding) << '\n';
6610 static void printMachOUnwindInfoSection(const MachOObjectFile *Obj,
6611 std::map<uint64_t, SymbolRef> &Symbols,
6612 const SectionRef &UnwindInfo) {
6614 assert(Obj->isLittleEndian() &&
6615 "There should not be a big-endian .o with __unwind_info");
6617 outs() << "Contents of __unwind_info section:\n";
6620 UnwindInfo.getContents(Contents);
6621 const char *Pos = Contents.data();
6623 //===----------------------------------
6625 //===----------------------------------
6627 uint32_t Version = readNext<uint32_t>(Pos);
6628 outs() << " Version: "
6629 << format("0x%" PRIx32, Version) << '\n';
6630 assert(Version == 1 && "only understand version 1");
6632 uint32_t CommonEncodingsStart = readNext<uint32_t>(Pos);
6633 outs() << " Common encodings array section offset: "
6634 << format("0x%" PRIx32, CommonEncodingsStart) << '\n';
6635 uint32_t NumCommonEncodings = readNext<uint32_t>(Pos);
6636 outs() << " Number of common encodings in array: "
6637 << format("0x%" PRIx32, NumCommonEncodings) << '\n';
6639 uint32_t PersonalitiesStart = readNext<uint32_t>(Pos);
6640 outs() << " Personality function array section offset: "
6641 << format("0x%" PRIx32, PersonalitiesStart) << '\n';
6642 uint32_t NumPersonalities = readNext<uint32_t>(Pos);
6643 outs() << " Number of personality functions in array: "
6644 << format("0x%" PRIx32, NumPersonalities) << '\n';
6646 uint32_t IndicesStart = readNext<uint32_t>(Pos);
6647 outs() << " Index array section offset: "
6648 << format("0x%" PRIx32, IndicesStart) << '\n';
6649 uint32_t NumIndices = readNext<uint32_t>(Pos);
6650 outs() << " Number of indices in array: "
6651 << format("0x%" PRIx32, NumIndices) << '\n';
6653 //===----------------------------------
6654 // A shared list of common encodings
6655 //===----------------------------------
6657 // These occupy indices in the range [0, N] whenever an encoding is referenced
6658 // from a compressed 2nd level index table. In practice the linker only
6659 // creates ~128 of these, so that indices are available to embed encodings in
6660 // the 2nd level index.
6662 SmallVector<uint32_t, 64> CommonEncodings;
6663 outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n";
6664 Pos = Contents.data() + CommonEncodingsStart;
6665 for (unsigned i = 0; i < NumCommonEncodings; ++i) {
6666 uint32_t Encoding = readNext<uint32_t>(Pos);
6667 CommonEncodings.push_back(Encoding);
6669 outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32, Encoding)
6673 //===----------------------------------
6674 // Personality functions used in this executable
6675 //===----------------------------------
6677 // There should be only a handful of these (one per source language,
6678 // roughly). Particularly since they only get 2 bits in the compact encoding.
6680 outs() << " Personality functions: (count = " << NumPersonalities << ")\n";
6681 Pos = Contents.data() + PersonalitiesStart;
6682 for (unsigned i = 0; i < NumPersonalities; ++i) {
6683 uint32_t PersonalityFn = readNext<uint32_t>(Pos);
6684 outs() << " personality[" << i + 1
6685 << "]: " << format("0x%08" PRIx32, PersonalityFn) << '\n';
6688 //===----------------------------------
6689 // The level 1 index entries
6690 //===----------------------------------
6692 // These specify an approximate place to start searching for the more detailed
6693 // information, sorted by PC.
6696 uint32_t FunctionOffset;
6697 uint32_t SecondLevelPageStart;
6701 SmallVector<IndexEntry, 4> IndexEntries;
6703 outs() << " Top level indices: (count = " << NumIndices << ")\n";
6704 Pos = Contents.data() + IndicesStart;
6705 for (unsigned i = 0; i < NumIndices; ++i) {
6708 Entry.FunctionOffset = readNext<uint32_t>(Pos);
6709 Entry.SecondLevelPageStart = readNext<uint32_t>(Pos);
6710 Entry.LSDAStart = readNext<uint32_t>(Pos);
6711 IndexEntries.push_back(Entry);
6713 outs() << " [" << i << "]: "
6714 << "function offset=" << format("0x%08" PRIx32, Entry.FunctionOffset)
6716 << "2nd level page offset="
6717 << format("0x%08" PRIx32, Entry.SecondLevelPageStart) << ", "
6718 << "LSDA offset=" << format("0x%08" PRIx32, Entry.LSDAStart) << '\n';
6721 //===----------------------------------
6722 // Next come the LSDA tables
6723 //===----------------------------------
6725 // The LSDA layout is rather implicit: it's a contiguous array of entries from
6726 // the first top-level index's LSDAOffset to the last (sentinel).
6728 outs() << " LSDA descriptors:\n";
6729 Pos = Contents.data() + IndexEntries[0].LSDAStart;
6730 int NumLSDAs = (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) /
6731 (2 * sizeof(uint32_t));
6732 for (int i = 0; i < NumLSDAs; ++i) {
6733 uint32_t FunctionOffset = readNext<uint32_t>(Pos);
6734 uint32_t LSDAOffset = readNext<uint32_t>(Pos);
6735 outs() << " [" << i << "]: "
6736 << "function offset=" << format("0x%08" PRIx32, FunctionOffset)
6738 << "LSDA offset=" << format("0x%08" PRIx32, LSDAOffset) << '\n';
6741 //===----------------------------------
6742 // Finally, the 2nd level indices
6743 //===----------------------------------
6745 // Generally these are 4K in size, and have 2 possible forms:
6746 // + Regular stores up to 511 entries with disparate encodings
6747 // + Compressed stores up to 1021 entries if few enough compact encoding
6749 outs() << " Second level indices:\n";
6750 for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) {
6751 // The final sentinel top-level index has no associated 2nd level page
6752 if (IndexEntries[i].SecondLevelPageStart == 0)
6755 outs() << " Second level index[" << i << "]: "
6756 << "offset in section="
6757 << format("0x%08" PRIx32, IndexEntries[i].SecondLevelPageStart)
6759 << "base function offset="
6760 << format("0x%08" PRIx32, IndexEntries[i].FunctionOffset) << '\n';
6762 Pos = Contents.data() + IndexEntries[i].SecondLevelPageStart;
6763 uint32_t Kind = *reinterpret_cast<const support::ulittle32_t *>(Pos);
6765 printRegularSecondLevelUnwindPage(Pos);
6767 printCompressedSecondLevelUnwindPage(Pos, IndexEntries[i].FunctionOffset,
6770 llvm_unreachable("Do not know how to print this kind of 2nd level page");
6774 void llvm::printMachOUnwindInfo(const MachOObjectFile *Obj) {
6775 std::map<uint64_t, SymbolRef> Symbols;
6776 for (const SymbolRef &SymRef : Obj->symbols()) {
6777 // Discard any undefined or absolute symbols. They're not going to take part
6778 // in the convenience lookup for unwind info and just take up resources.
6779 section_iterator Section = *SymRef.getSection();
6780 if (Section == Obj->section_end())
6783 uint64_t Addr = SymRef.getValue();
6784 Symbols.insert(std::make_pair(Addr, SymRef));
6787 for (const SectionRef &Section : Obj->sections()) {
6789 Section.getName(SectName);
6790 if (SectName == "__compact_unwind")
6791 printMachOCompactUnwindSection(Obj, Symbols, Section);
6792 else if (SectName == "__unwind_info")
6793 printMachOUnwindInfoSection(Obj, Symbols, Section);
6794 else if (SectName == "__eh_frame")
6795 outs() << "llvm-objdump: warning: unhandled __eh_frame section\n";
6799 static void PrintMachHeader(uint32_t magic, uint32_t cputype,
6800 uint32_t cpusubtype, uint32_t filetype,
6801 uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags,
6803 outs() << "Mach header\n";
6804 outs() << " magic cputype cpusubtype caps filetype ncmds "
6805 "sizeofcmds flags\n";
6807 if (magic == MachO::MH_MAGIC)
6808 outs() << " MH_MAGIC";
6809 else if (magic == MachO::MH_MAGIC_64)
6810 outs() << "MH_MAGIC_64";
6812 outs() << format(" 0x%08" PRIx32, magic);
6814 case MachO::CPU_TYPE_I386:
6816 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6817 case MachO::CPU_SUBTYPE_I386_ALL:
6821 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6825 case MachO::CPU_TYPE_X86_64:
6826 outs() << " X86_64";
6827 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6828 case MachO::CPU_SUBTYPE_X86_64_ALL:
6831 case MachO::CPU_SUBTYPE_X86_64_H:
6832 outs() << " Haswell";
6835 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6839 case MachO::CPU_TYPE_ARM:
6841 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6842 case MachO::CPU_SUBTYPE_ARM_ALL:
6845 case MachO::CPU_SUBTYPE_ARM_V4T:
6848 case MachO::CPU_SUBTYPE_ARM_V5TEJ:
6851 case MachO::CPU_SUBTYPE_ARM_XSCALE:
6852 outs() << " XSCALE";
6854 case MachO::CPU_SUBTYPE_ARM_V6:
6857 case MachO::CPU_SUBTYPE_ARM_V6M:
6860 case MachO::CPU_SUBTYPE_ARM_V7:
6863 case MachO::CPU_SUBTYPE_ARM_V7EM:
6866 case MachO::CPU_SUBTYPE_ARM_V7K:
6869 case MachO::CPU_SUBTYPE_ARM_V7M:
6872 case MachO::CPU_SUBTYPE_ARM_V7S:
6876 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6880 case MachO::CPU_TYPE_ARM64:
6882 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6883 case MachO::CPU_SUBTYPE_ARM64_ALL:
6887 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6891 case MachO::CPU_TYPE_POWERPC:
6893 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6894 case MachO::CPU_SUBTYPE_POWERPC_ALL:
6898 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6902 case MachO::CPU_TYPE_POWERPC64:
6904 switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) {
6905 case MachO::CPU_SUBTYPE_POWERPC_ALL:
6909 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
6914 if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) {
6917 outs() << format(" 0x%02" PRIx32,
6918 (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
6921 case MachO::MH_OBJECT:
6922 outs() << " OBJECT";
6924 case MachO::MH_EXECUTE:
6925 outs() << " EXECUTE";
6927 case MachO::MH_FVMLIB:
6928 outs() << " FVMLIB";
6930 case MachO::MH_CORE:
6933 case MachO::MH_PRELOAD:
6934 outs() << " PRELOAD";
6936 case MachO::MH_DYLIB:
6939 case MachO::MH_DYLIB_STUB:
6940 outs() << " DYLIB_STUB";
6942 case MachO::MH_DYLINKER:
6943 outs() << " DYLINKER";
6945 case MachO::MH_BUNDLE:
6946 outs() << " BUNDLE";
6948 case MachO::MH_DSYM:
6951 case MachO::MH_KEXT_BUNDLE:
6952 outs() << " KEXTBUNDLE";
6955 outs() << format(" %10u", filetype);
6958 outs() << format(" %5u", ncmds);
6959 outs() << format(" %10u", sizeofcmds);
6961 if (f & MachO::MH_NOUNDEFS) {
6962 outs() << " NOUNDEFS";
6963 f &= ~MachO::MH_NOUNDEFS;
6965 if (f & MachO::MH_INCRLINK) {
6966 outs() << " INCRLINK";
6967 f &= ~MachO::MH_INCRLINK;
6969 if (f & MachO::MH_DYLDLINK) {
6970 outs() << " DYLDLINK";
6971 f &= ~MachO::MH_DYLDLINK;
6973 if (f & MachO::MH_BINDATLOAD) {
6974 outs() << " BINDATLOAD";
6975 f &= ~MachO::MH_BINDATLOAD;
6977 if (f & MachO::MH_PREBOUND) {
6978 outs() << " PREBOUND";
6979 f &= ~MachO::MH_PREBOUND;
6981 if (f & MachO::MH_SPLIT_SEGS) {
6982 outs() << " SPLIT_SEGS";
6983 f &= ~MachO::MH_SPLIT_SEGS;
6985 if (f & MachO::MH_LAZY_INIT) {
6986 outs() << " LAZY_INIT";
6987 f &= ~MachO::MH_LAZY_INIT;
6989 if (f & MachO::MH_TWOLEVEL) {
6990 outs() << " TWOLEVEL";
6991 f &= ~MachO::MH_TWOLEVEL;
6993 if (f & MachO::MH_FORCE_FLAT) {
6994 outs() << " FORCE_FLAT";
6995 f &= ~MachO::MH_FORCE_FLAT;
6997 if (f & MachO::MH_NOMULTIDEFS) {
6998 outs() << " NOMULTIDEFS";
6999 f &= ~MachO::MH_NOMULTIDEFS;
7001 if (f & MachO::MH_NOFIXPREBINDING) {
7002 outs() << " NOFIXPREBINDING";
7003 f &= ~MachO::MH_NOFIXPREBINDING;
7005 if (f & MachO::MH_PREBINDABLE) {
7006 outs() << " PREBINDABLE";
7007 f &= ~MachO::MH_PREBINDABLE;
7009 if (f & MachO::MH_ALLMODSBOUND) {
7010 outs() << " ALLMODSBOUND";
7011 f &= ~MachO::MH_ALLMODSBOUND;
7013 if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) {
7014 outs() << " SUBSECTIONS_VIA_SYMBOLS";
7015 f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS;
7017 if (f & MachO::MH_CANONICAL) {
7018 outs() << " CANONICAL";
7019 f &= ~MachO::MH_CANONICAL;
7021 if (f & MachO::MH_WEAK_DEFINES) {
7022 outs() << " WEAK_DEFINES";
7023 f &= ~MachO::MH_WEAK_DEFINES;
7025 if (f & MachO::MH_BINDS_TO_WEAK) {
7026 outs() << " BINDS_TO_WEAK";
7027 f &= ~MachO::MH_BINDS_TO_WEAK;
7029 if (f & MachO::MH_ALLOW_STACK_EXECUTION) {
7030 outs() << " ALLOW_STACK_EXECUTION";
7031 f &= ~MachO::MH_ALLOW_STACK_EXECUTION;
7033 if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) {
7034 outs() << " DEAD_STRIPPABLE_DYLIB";
7035 f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB;
7037 if (f & MachO::MH_PIE) {
7039 f &= ~MachO::MH_PIE;
7041 if (f & MachO::MH_NO_REEXPORTED_DYLIBS) {
7042 outs() << " NO_REEXPORTED_DYLIBS";
7043 f &= ~MachO::MH_NO_REEXPORTED_DYLIBS;
7045 if (f & MachO::MH_HAS_TLV_DESCRIPTORS) {
7046 outs() << " MH_HAS_TLV_DESCRIPTORS";
7047 f &= ~MachO::MH_HAS_TLV_DESCRIPTORS;
7049 if (f & MachO::MH_NO_HEAP_EXECUTION) {
7050 outs() << " MH_NO_HEAP_EXECUTION";
7051 f &= ~MachO::MH_NO_HEAP_EXECUTION;
7053 if (f & MachO::MH_APP_EXTENSION_SAFE) {
7054 outs() << " APP_EXTENSION_SAFE";
7055 f &= ~MachO::MH_APP_EXTENSION_SAFE;
7057 if (f != 0 || flags == 0)
7058 outs() << format(" 0x%08" PRIx32, f);
7060 outs() << format(" 0x%08" PRIx32, magic);
7061 outs() << format(" %7d", cputype);
7062 outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK);
7063 outs() << format(" 0x%02" PRIx32,
7064 (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24);
7065 outs() << format(" %10u", filetype);
7066 outs() << format(" %5u", ncmds);
7067 outs() << format(" %10u", sizeofcmds);
7068 outs() << format(" 0x%08" PRIx32, flags);
7073 static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize,
7074 StringRef SegName, uint64_t vmaddr,
7075 uint64_t vmsize, uint64_t fileoff,
7076 uint64_t filesize, uint32_t maxprot,
7077 uint32_t initprot, uint32_t nsects,
7078 uint32_t flags, uint32_t object_size,
7080 uint64_t expected_cmdsize;
7081 if (cmd == MachO::LC_SEGMENT) {
7082 outs() << " cmd LC_SEGMENT\n";
7083 expected_cmdsize = nsects;
7084 expected_cmdsize *= sizeof(struct MachO::section);
7085 expected_cmdsize += sizeof(struct MachO::segment_command);
7087 outs() << " cmd LC_SEGMENT_64\n";
7088 expected_cmdsize = nsects;
7089 expected_cmdsize *= sizeof(struct MachO::section_64);
7090 expected_cmdsize += sizeof(struct MachO::segment_command_64);
7092 outs() << " cmdsize " << cmdsize;
7093 if (cmdsize != expected_cmdsize)
7094 outs() << " Inconsistent size\n";
7097 outs() << " segname " << SegName << "\n";
7098 if (cmd == MachO::LC_SEGMENT_64) {
7099 outs() << " vmaddr " << format("0x%016" PRIx64, vmaddr) << "\n";
7100 outs() << " vmsize " << format("0x%016" PRIx64, vmsize) << "\n";
7102 outs() << " vmaddr " << format("0x%08" PRIx64, vmaddr) << "\n";
7103 outs() << " vmsize " << format("0x%08" PRIx64, vmsize) << "\n";
7105 outs() << " fileoff " << fileoff;
7106 if (fileoff > object_size)
7107 outs() << " (past end of file)\n";
7110 outs() << " filesize " << filesize;
7111 if (fileoff + filesize > object_size)
7112 outs() << " (past end of file)\n";
7117 ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE |
7118 MachO::VM_PROT_EXECUTE)) != 0)
7119 outs() << " maxprot ?" << format("0x%08" PRIx32, maxprot) << "\n";
7121 outs() << " maxprot ";
7122 outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-");
7123 outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-");
7124 outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n");
7127 ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE |
7128 MachO::VM_PROT_EXECUTE)) != 0)
7129 outs() << " initprot ?" << format("0x%08" PRIx32, initprot) << "\n";
7131 outs() << " initprot ";
7132 outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-");
7133 outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-");
7134 outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n");
7137 outs() << " maxprot " << format("0x%08" PRIx32, maxprot) << "\n";
7138 outs() << " initprot " << format("0x%08" PRIx32, initprot) << "\n";
7140 outs() << " nsects " << nsects << "\n";
7144 outs() << " (none)\n";
7146 if (flags & MachO::SG_HIGHVM) {
7147 outs() << " HIGHVM";
7148 flags &= ~MachO::SG_HIGHVM;
7150 if (flags & MachO::SG_FVMLIB) {
7151 outs() << " FVMLIB";
7152 flags &= ~MachO::SG_FVMLIB;
7154 if (flags & MachO::SG_NORELOC) {
7155 outs() << " NORELOC";
7156 flags &= ~MachO::SG_NORELOC;
7158 if (flags & MachO::SG_PROTECTED_VERSION_1) {
7159 outs() << " PROTECTED_VERSION_1";
7160 flags &= ~MachO::SG_PROTECTED_VERSION_1;
7163 outs() << format(" 0x%08" PRIx32, flags) << " (unknown flags)\n";
7168 outs() << " flags " << format("0x%" PRIx32, flags) << "\n";
7172 static void PrintSection(const char *sectname, const char *segname,
7173 uint64_t addr, uint64_t size, uint32_t offset,
7174 uint32_t align, uint32_t reloff, uint32_t nreloc,
7175 uint32_t flags, uint32_t reserved1, uint32_t reserved2,
7176 uint32_t cmd, const char *sg_segname,
7177 uint32_t filetype, uint32_t object_size,
7179 outs() << "Section\n";
7180 outs() << " sectname " << format("%.16s\n", sectname);
7181 outs() << " segname " << format("%.16s", segname);
7182 if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0)
7183 outs() << " (does not match segment)\n";
7186 if (cmd == MachO::LC_SEGMENT_64) {
7187 outs() << " addr " << format("0x%016" PRIx64, addr) << "\n";
7188 outs() << " size " << format("0x%016" PRIx64, size);
7190 outs() << " addr " << format("0x%08" PRIx64, addr) << "\n";
7191 outs() << " size " << format("0x%08" PRIx64, size);
7193 if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size)
7194 outs() << " (past end of file)\n";
7197 outs() << " offset " << offset;
7198 if (offset > object_size)
7199 outs() << " (past end of file)\n";
7202 uint32_t align_shifted = 1 << align;
7203 outs() << " align 2^" << align << " (" << align_shifted << ")\n";
7204 outs() << " reloff " << reloff;
7205 if (reloff > object_size)
7206 outs() << " (past end of file)\n";
7209 outs() << " nreloc " << nreloc;
7210 if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size)
7211 outs() << " (past end of file)\n";
7214 uint32_t section_type = flags & MachO::SECTION_TYPE;
7217 if (section_type == MachO::S_REGULAR)
7218 outs() << " S_REGULAR\n";
7219 else if (section_type == MachO::S_ZEROFILL)
7220 outs() << " S_ZEROFILL\n";
7221 else if (section_type == MachO::S_CSTRING_LITERALS)
7222 outs() << " S_CSTRING_LITERALS\n";
7223 else if (section_type == MachO::S_4BYTE_LITERALS)
7224 outs() << " S_4BYTE_LITERALS\n";
7225 else if (section_type == MachO::S_8BYTE_LITERALS)
7226 outs() << " S_8BYTE_LITERALS\n";
7227 else if (section_type == MachO::S_16BYTE_LITERALS)
7228 outs() << " S_16BYTE_LITERALS\n";
7229 else if (section_type == MachO::S_LITERAL_POINTERS)
7230 outs() << " S_LITERAL_POINTERS\n";
7231 else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS)
7232 outs() << " S_NON_LAZY_SYMBOL_POINTERS\n";
7233 else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS)
7234 outs() << " S_LAZY_SYMBOL_POINTERS\n";
7235 else if (section_type == MachO::S_SYMBOL_STUBS)
7236 outs() << " S_SYMBOL_STUBS\n";
7237 else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS)
7238 outs() << " S_MOD_INIT_FUNC_POINTERS\n";
7239 else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS)
7240 outs() << " S_MOD_TERM_FUNC_POINTERS\n";
7241 else if (section_type == MachO::S_COALESCED)
7242 outs() << " S_COALESCED\n";
7243 else if (section_type == MachO::S_INTERPOSING)
7244 outs() << " S_INTERPOSING\n";
7245 else if (section_type == MachO::S_DTRACE_DOF)
7246 outs() << " S_DTRACE_DOF\n";
7247 else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS)
7248 outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n";
7249 else if (section_type == MachO::S_THREAD_LOCAL_REGULAR)
7250 outs() << " S_THREAD_LOCAL_REGULAR\n";
7251 else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL)
7252 outs() << " S_THREAD_LOCAL_ZEROFILL\n";
7253 else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES)
7254 outs() << " S_THREAD_LOCAL_VARIABLES\n";
7255 else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS)
7256 outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n";
7257 else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS)
7258 outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n";
7260 outs() << format("0x%08" PRIx32, section_type) << "\n";
7261 outs() << "attributes";
7262 uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES;
7263 if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS)
7264 outs() << " PURE_INSTRUCTIONS";
7265 if (section_attributes & MachO::S_ATTR_NO_TOC)
7266 outs() << " NO_TOC";
7267 if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS)
7268 outs() << " STRIP_STATIC_SYMS";
7269 if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP)
7270 outs() << " NO_DEAD_STRIP";
7271 if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT)
7272 outs() << " LIVE_SUPPORT";
7273 if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE)
7274 outs() << " SELF_MODIFYING_CODE";
7275 if (section_attributes & MachO::S_ATTR_DEBUG)
7277 if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS)
7278 outs() << " SOME_INSTRUCTIONS";
7279 if (section_attributes & MachO::S_ATTR_EXT_RELOC)
7280 outs() << " EXT_RELOC";
7281 if (section_attributes & MachO::S_ATTR_LOC_RELOC)
7282 outs() << " LOC_RELOC";
7283 if (section_attributes == 0)
7284 outs() << " (none)";
7287 outs() << " flags " << format("0x%08" PRIx32, flags) << "\n";
7288 outs() << " reserved1 " << reserved1;
7289 if (section_type == MachO::S_SYMBOL_STUBS ||
7290 section_type == MachO::S_LAZY_SYMBOL_POINTERS ||
7291 section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS ||
7292 section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS ||
7293 section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS)
7294 outs() << " (index into indirect symbol table)\n";
7297 outs() << " reserved2 " << reserved2;
7298 if (section_type == MachO::S_SYMBOL_STUBS)
7299 outs() << " (size of stubs)\n";
7304 static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit,
7305 uint32_t object_size) {
7306 outs() << " cmd LC_SYMTAB\n";
7307 outs() << " cmdsize " << st.cmdsize;
7308 if (st.cmdsize != sizeof(struct MachO::symtab_command))
7309 outs() << " Incorrect size\n";
7312 outs() << " symoff " << st.symoff;
7313 if (st.symoff > object_size)
7314 outs() << " (past end of file)\n";
7317 outs() << " nsyms " << st.nsyms;
7320 big_size = st.nsyms;
7321 big_size *= sizeof(struct MachO::nlist_64);
7322 big_size += st.symoff;
7323 if (big_size > object_size)
7324 outs() << " (past end of file)\n";
7328 big_size = st.nsyms;
7329 big_size *= sizeof(struct MachO::nlist);
7330 big_size += st.symoff;
7331 if (big_size > object_size)
7332 outs() << " (past end of file)\n";
7336 outs() << " stroff " << st.stroff;
7337 if (st.stroff > object_size)
7338 outs() << " (past end of file)\n";
7341 outs() << " strsize " << st.strsize;
7342 big_size = st.stroff;
7343 big_size += st.strsize;
7344 if (big_size > object_size)
7345 outs() << " (past end of file)\n";
7350 static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst,
7351 uint32_t nsyms, uint32_t object_size,
7353 outs() << " cmd LC_DYSYMTAB\n";
7354 outs() << " cmdsize " << dyst.cmdsize;
7355 if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command))
7356 outs() << " Incorrect size\n";
7359 outs() << " ilocalsym " << dyst.ilocalsym;
7360 if (dyst.ilocalsym > nsyms)
7361 outs() << " (greater than the number of symbols)\n";
7364 outs() << " nlocalsym " << dyst.nlocalsym;
7366 big_size = dyst.ilocalsym;
7367 big_size += dyst.nlocalsym;
7368 if (big_size > nsyms)
7369 outs() << " (past the end of the symbol table)\n";
7372 outs() << " iextdefsym " << dyst.iextdefsym;
7373 if (dyst.iextdefsym > nsyms)
7374 outs() << " (greater than the number of symbols)\n";
7377 outs() << " nextdefsym " << dyst.nextdefsym;
7378 big_size = dyst.iextdefsym;
7379 big_size += dyst.nextdefsym;
7380 if (big_size > nsyms)
7381 outs() << " (past the end of the symbol table)\n";
7384 outs() << " iundefsym " << dyst.iundefsym;
7385 if (dyst.iundefsym > nsyms)
7386 outs() << " (greater than the number of symbols)\n";
7389 outs() << " nundefsym " << dyst.nundefsym;
7390 big_size = dyst.iundefsym;
7391 big_size += dyst.nundefsym;
7392 if (big_size > nsyms)
7393 outs() << " (past the end of the symbol table)\n";
7396 outs() << " tocoff " << dyst.tocoff;
7397 if (dyst.tocoff > object_size)
7398 outs() << " (past end of file)\n";
7401 outs() << " ntoc " << dyst.ntoc;
7402 big_size = dyst.ntoc;
7403 big_size *= sizeof(struct MachO::dylib_table_of_contents);
7404 big_size += dyst.tocoff;
7405 if (big_size > object_size)
7406 outs() << " (past end of file)\n";
7409 outs() << " modtaboff " << dyst.modtaboff;
7410 if (dyst.modtaboff > object_size)
7411 outs() << " (past end of file)\n";
7414 outs() << " nmodtab " << dyst.nmodtab;
7417 modtabend = dyst.nmodtab;
7418 modtabend *= sizeof(struct MachO::dylib_module_64);
7419 modtabend += dyst.modtaboff;
7421 modtabend = dyst.nmodtab;
7422 modtabend *= sizeof(struct MachO::dylib_module);
7423 modtabend += dyst.modtaboff;
7425 if (modtabend > object_size)
7426 outs() << " (past end of file)\n";
7429 outs() << " extrefsymoff " << dyst.extrefsymoff;
7430 if (dyst.extrefsymoff > object_size)
7431 outs() << " (past end of file)\n";
7434 outs() << " nextrefsyms " << dyst.nextrefsyms;
7435 big_size = dyst.nextrefsyms;
7436 big_size *= sizeof(struct MachO::dylib_reference);
7437 big_size += dyst.extrefsymoff;
7438 if (big_size > object_size)
7439 outs() << " (past end of file)\n";
7442 outs() << " indirectsymoff " << dyst.indirectsymoff;
7443 if (dyst.indirectsymoff > object_size)
7444 outs() << " (past end of file)\n";
7447 outs() << " nindirectsyms " << dyst.nindirectsyms;
7448 big_size = dyst.nindirectsyms;
7449 big_size *= sizeof(uint32_t);
7450 big_size += dyst.indirectsymoff;
7451 if (big_size > object_size)
7452 outs() << " (past end of file)\n";
7455 outs() << " extreloff " << dyst.extreloff;
7456 if (dyst.extreloff > object_size)
7457 outs() << " (past end of file)\n";
7460 outs() << " nextrel " << dyst.nextrel;
7461 big_size = dyst.nextrel;
7462 big_size *= sizeof(struct MachO::relocation_info);
7463 big_size += dyst.extreloff;
7464 if (big_size > object_size)
7465 outs() << " (past end of file)\n";
7468 outs() << " locreloff " << dyst.locreloff;
7469 if (dyst.locreloff > object_size)
7470 outs() << " (past end of file)\n";
7473 outs() << " nlocrel " << dyst.nlocrel;
7474 big_size = dyst.nlocrel;
7475 big_size *= sizeof(struct MachO::relocation_info);
7476 big_size += dyst.locreloff;
7477 if (big_size > object_size)
7478 outs() << " (past end of file)\n";
7483 static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc,
7484 uint32_t object_size) {
7485 if (dc.cmd == MachO::LC_DYLD_INFO)
7486 outs() << " cmd LC_DYLD_INFO\n";
7488 outs() << " cmd LC_DYLD_INFO_ONLY\n";
7489 outs() << " cmdsize " << dc.cmdsize;
7490 if (dc.cmdsize != sizeof(struct MachO::dyld_info_command))
7491 outs() << " Incorrect size\n";
7494 outs() << " rebase_off " << dc.rebase_off;
7495 if (dc.rebase_off > object_size)
7496 outs() << " (past end of file)\n";
7499 outs() << " rebase_size " << dc.rebase_size;
7501 big_size = dc.rebase_off;
7502 big_size += dc.rebase_size;
7503 if (big_size > object_size)
7504 outs() << " (past end of file)\n";
7507 outs() << " bind_off " << dc.bind_off;
7508 if (dc.bind_off > object_size)
7509 outs() << " (past end of file)\n";
7512 outs() << " bind_size " << dc.bind_size;
7513 big_size = dc.bind_off;
7514 big_size += dc.bind_size;
7515 if (big_size > object_size)
7516 outs() << " (past end of file)\n";
7519 outs() << " weak_bind_off " << dc.weak_bind_off;
7520 if (dc.weak_bind_off > object_size)
7521 outs() << " (past end of file)\n";
7524 outs() << " weak_bind_size " << dc.weak_bind_size;
7525 big_size = dc.weak_bind_off;
7526 big_size += dc.weak_bind_size;
7527 if (big_size > object_size)
7528 outs() << " (past end of file)\n";
7531 outs() << " lazy_bind_off " << dc.lazy_bind_off;
7532 if (dc.lazy_bind_off > object_size)
7533 outs() << " (past end of file)\n";
7536 outs() << " lazy_bind_size " << dc.lazy_bind_size;
7537 big_size = dc.lazy_bind_off;
7538 big_size += dc.lazy_bind_size;
7539 if (big_size > object_size)
7540 outs() << " (past end of file)\n";
7543 outs() << " export_off " << dc.export_off;
7544 if (dc.export_off > object_size)
7545 outs() << " (past end of file)\n";
7548 outs() << " export_size " << dc.export_size;
7549 big_size = dc.export_off;
7550 big_size += dc.export_size;
7551 if (big_size > object_size)
7552 outs() << " (past end of file)\n";
7557 static void PrintDyldLoadCommand(MachO::dylinker_command dyld,
7559 if (dyld.cmd == MachO::LC_ID_DYLINKER)
7560 outs() << " cmd LC_ID_DYLINKER\n";
7561 else if (dyld.cmd == MachO::LC_LOAD_DYLINKER)
7562 outs() << " cmd LC_LOAD_DYLINKER\n";
7563 else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT)
7564 outs() << " cmd LC_DYLD_ENVIRONMENT\n";
7566 outs() << " cmd ?(" << dyld.cmd << ")\n";
7567 outs() << " cmdsize " << dyld.cmdsize;
7568 if (dyld.cmdsize < sizeof(struct MachO::dylinker_command))
7569 outs() << " Incorrect size\n";
7572 if (dyld.name >= dyld.cmdsize)
7573 outs() << " name ?(bad offset " << dyld.name << ")\n";
7575 const char *P = (const char *)(Ptr) + dyld.name;
7576 outs() << " name " << P << " (offset " << dyld.name << ")\n";
7580 static void PrintUuidLoadCommand(MachO::uuid_command uuid) {
7581 outs() << " cmd LC_UUID\n";
7582 outs() << " cmdsize " << uuid.cmdsize;
7583 if (uuid.cmdsize != sizeof(struct MachO::uuid_command))
7584 outs() << " Incorrect size\n";
7588 outs() << format("%02" PRIX32, uuid.uuid[0]);
7589 outs() << format("%02" PRIX32, uuid.uuid[1]);
7590 outs() << format("%02" PRIX32, uuid.uuid[2]);
7591 outs() << format("%02" PRIX32, uuid.uuid[3]);
7593 outs() << format("%02" PRIX32, uuid.uuid[4]);
7594 outs() << format("%02" PRIX32, uuid.uuid[5]);
7596 outs() << format("%02" PRIX32, uuid.uuid[6]);
7597 outs() << format("%02" PRIX32, uuid.uuid[7]);
7599 outs() << format("%02" PRIX32, uuid.uuid[8]);
7600 outs() << format("%02" PRIX32, uuid.uuid[9]);
7602 outs() << format("%02" PRIX32, uuid.uuid[10]);
7603 outs() << format("%02" PRIX32, uuid.uuid[11]);
7604 outs() << format("%02" PRIX32, uuid.uuid[12]);
7605 outs() << format("%02" PRIX32, uuid.uuid[13]);
7606 outs() << format("%02" PRIX32, uuid.uuid[14]);
7607 outs() << format("%02" PRIX32, uuid.uuid[15]);
7611 static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) {
7612 outs() << " cmd LC_RPATH\n";
7613 outs() << " cmdsize " << rpath.cmdsize;
7614 if (rpath.cmdsize < sizeof(struct MachO::rpath_command))
7615 outs() << " Incorrect size\n";
7618 if (rpath.path >= rpath.cmdsize)
7619 outs() << " path ?(bad offset " << rpath.path << ")\n";
7621 const char *P = (const char *)(Ptr) + rpath.path;
7622 outs() << " path " << P << " (offset " << rpath.path << ")\n";
7626 static void PrintVersionMinLoadCommand(MachO::version_min_command vd) {
7627 if (vd.cmd == MachO::LC_VERSION_MIN_MACOSX)
7628 outs() << " cmd LC_VERSION_MIN_MACOSX\n";
7629 else if (vd.cmd == MachO::LC_VERSION_MIN_IPHONEOS)
7630 outs() << " cmd LC_VERSION_MIN_IPHONEOS\n";
7632 outs() << " cmd " << vd.cmd << " (?)\n";
7633 outs() << " cmdsize " << vd.cmdsize;
7634 if (vd.cmdsize != sizeof(struct MachO::version_min_command))
7635 outs() << " Incorrect size\n";
7638 outs() << " version "
7639 << MachOObjectFile::getVersionMinMajor(vd, false) << "."
7640 << MachOObjectFile::getVersionMinMinor(vd, false);
7641 uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false);
7643 outs() << "." << Update;
7646 outs() << " sdk n/a";
7649 << MachOObjectFile::getVersionMinMajor(vd, true) << "."
7650 << MachOObjectFile::getVersionMinMinor(vd, true);
7652 Update = MachOObjectFile::getVersionMinUpdate(vd, true);
7654 outs() << "." << Update;
7658 static void PrintSourceVersionCommand(MachO::source_version_command sd) {
7659 outs() << " cmd LC_SOURCE_VERSION\n";
7660 outs() << " cmdsize " << sd.cmdsize;
7661 if (sd.cmdsize != sizeof(struct MachO::source_version_command))
7662 outs() << " Incorrect size\n";
7665 uint64_t a = (sd.version >> 40) & 0xffffff;
7666 uint64_t b = (sd.version >> 30) & 0x3ff;
7667 uint64_t c = (sd.version >> 20) & 0x3ff;
7668 uint64_t d = (sd.version >> 10) & 0x3ff;
7669 uint64_t e = sd.version & 0x3ff;
7670 outs() << " version " << a << "." << b;
7672 outs() << "." << c << "." << d << "." << e;
7674 outs() << "." << c << "." << d;
7680 static void PrintEntryPointCommand(MachO::entry_point_command ep) {
7681 outs() << " cmd LC_MAIN\n";
7682 outs() << " cmdsize " << ep.cmdsize;
7683 if (ep.cmdsize != sizeof(struct MachO::entry_point_command))
7684 outs() << " Incorrect size\n";
7687 outs() << " entryoff " << ep.entryoff << "\n";
7688 outs() << " stacksize " << ep.stacksize << "\n";
7691 static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec,
7692 uint32_t object_size) {
7693 outs() << " cmd LC_ENCRYPTION_INFO\n";
7694 outs() << " cmdsize " << ec.cmdsize;
7695 if (ec.cmdsize != sizeof(struct MachO::encryption_info_command))
7696 outs() << " Incorrect size\n";
7699 outs() << " cryptoff " << ec.cryptoff;
7700 if (ec.cryptoff > object_size)
7701 outs() << " (past end of file)\n";
7704 outs() << " cryptsize " << ec.cryptsize;
7705 if (ec.cryptsize > object_size)
7706 outs() << " (past end of file)\n";
7709 outs() << " cryptid " << ec.cryptid << "\n";
7712 static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec,
7713 uint32_t object_size) {
7714 outs() << " cmd LC_ENCRYPTION_INFO_64\n";
7715 outs() << " cmdsize " << ec.cmdsize;
7716 if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64))
7717 outs() << " Incorrect size\n";
7720 outs() << " cryptoff " << ec.cryptoff;
7721 if (ec.cryptoff > object_size)
7722 outs() << " (past end of file)\n";
7725 outs() << " cryptsize " << ec.cryptsize;
7726 if (ec.cryptsize > object_size)
7727 outs() << " (past end of file)\n";
7730 outs() << " cryptid " << ec.cryptid << "\n";
7731 outs() << " pad " << ec.pad << "\n";
7734 static void PrintLinkerOptionCommand(MachO::linker_option_command lo,
7736 outs() << " cmd LC_LINKER_OPTION\n";
7737 outs() << " cmdsize " << lo.cmdsize;
7738 if (lo.cmdsize < sizeof(struct MachO::linker_option_command))
7739 outs() << " Incorrect size\n";
7742 outs() << " count " << lo.count << "\n";
7743 const char *string = Ptr + sizeof(struct MachO::linker_option_command);
7744 uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command);
7747 while (*string == '\0' && left > 0) {
7753 outs() << " string #" << i << " " << format("%.*s\n", left, string);
7754 uint32_t NullPos = StringRef(string, left).find('\0');
7755 uint32_t len = std::min(NullPos, left) + 1;
7761 outs() << " count " << lo.count << " does not match number of strings "
7765 static void PrintSubFrameworkCommand(MachO::sub_framework_command sub,
7767 outs() << " cmd LC_SUB_FRAMEWORK\n";
7768 outs() << " cmdsize " << sub.cmdsize;
7769 if (sub.cmdsize < sizeof(struct MachO::sub_framework_command))
7770 outs() << " Incorrect size\n";
7773 if (sub.umbrella < sub.cmdsize) {
7774 const char *P = Ptr + sub.umbrella;
7775 outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n";
7777 outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n";
7781 static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub,
7783 outs() << " cmd LC_SUB_UMBRELLA\n";
7784 outs() << " cmdsize " << sub.cmdsize;
7785 if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command))
7786 outs() << " Incorrect size\n";
7789 if (sub.sub_umbrella < sub.cmdsize) {
7790 const char *P = Ptr + sub.sub_umbrella;
7791 outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n";
7793 outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n";
7797 static void PrintSubLibraryCommand(MachO::sub_library_command sub,
7799 outs() << " cmd LC_SUB_LIBRARY\n";
7800 outs() << " cmdsize " << sub.cmdsize;
7801 if (sub.cmdsize < sizeof(struct MachO::sub_library_command))
7802 outs() << " Incorrect size\n";
7805 if (sub.sub_library < sub.cmdsize) {
7806 const char *P = Ptr + sub.sub_library;
7807 outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n";
7809 outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n";
7813 static void PrintSubClientCommand(MachO::sub_client_command sub,
7815 outs() << " cmd LC_SUB_CLIENT\n";
7816 outs() << " cmdsize " << sub.cmdsize;
7817 if (sub.cmdsize < sizeof(struct MachO::sub_client_command))
7818 outs() << " Incorrect size\n";
7821 if (sub.client < sub.cmdsize) {
7822 const char *P = Ptr + sub.client;
7823 outs() << " client " << P << " (offset " << sub.client << ")\n";
7825 outs() << " client ?(bad offset " << sub.client << ")\n";
7829 static void PrintRoutinesCommand(MachO::routines_command r) {
7830 outs() << " cmd LC_ROUTINES\n";
7831 outs() << " cmdsize " << r.cmdsize;
7832 if (r.cmdsize != sizeof(struct MachO::routines_command))
7833 outs() << " Incorrect size\n";
7836 outs() << " init_address " << format("0x%08" PRIx32, r.init_address) << "\n";
7837 outs() << " init_module " << r.init_module << "\n";
7838 outs() << " reserved1 " << r.reserved1 << "\n";
7839 outs() << " reserved2 " << r.reserved2 << "\n";
7840 outs() << " reserved3 " << r.reserved3 << "\n";
7841 outs() << " reserved4 " << r.reserved4 << "\n";
7842 outs() << " reserved5 " << r.reserved5 << "\n";
7843 outs() << " reserved6 " << r.reserved6 << "\n";
7846 static void PrintRoutinesCommand64(MachO::routines_command_64 r) {
7847 outs() << " cmd LC_ROUTINES_64\n";
7848 outs() << " cmdsize " << r.cmdsize;
7849 if (r.cmdsize != sizeof(struct MachO::routines_command_64))
7850 outs() << " Incorrect size\n";
7853 outs() << " init_address " << format("0x%016" PRIx64, r.init_address) << "\n";
7854 outs() << " init_module " << r.init_module << "\n";
7855 outs() << " reserved1 " << r.reserved1 << "\n";
7856 outs() << " reserved2 " << r.reserved2 << "\n";
7857 outs() << " reserved3 " << r.reserved3 << "\n";
7858 outs() << " reserved4 " << r.reserved4 << "\n";
7859 outs() << " reserved5 " << r.reserved5 << "\n";
7860 outs() << " reserved6 " << r.reserved6 << "\n";
7863 static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) {
7864 outs() << " rax " << format("0x%016" PRIx64, cpu64.rax);
7865 outs() << " rbx " << format("0x%016" PRIx64, cpu64.rbx);
7866 outs() << " rcx " << format("0x%016" PRIx64, cpu64.rcx) << "\n";
7867 outs() << " rdx " << format("0x%016" PRIx64, cpu64.rdx);
7868 outs() << " rdi " << format("0x%016" PRIx64, cpu64.rdi);
7869 outs() << " rsi " << format("0x%016" PRIx64, cpu64.rsi) << "\n";
7870 outs() << " rbp " << format("0x%016" PRIx64, cpu64.rbp);
7871 outs() << " rsp " << format("0x%016" PRIx64, cpu64.rsp);
7872 outs() << " r8 " << format("0x%016" PRIx64, cpu64.r8) << "\n";
7873 outs() << " r9 " << format("0x%016" PRIx64, cpu64.r9);
7874 outs() << " r10 " << format("0x%016" PRIx64, cpu64.r10);
7875 outs() << " r11 " << format("0x%016" PRIx64, cpu64.r11) << "\n";
7876 outs() << " r12 " << format("0x%016" PRIx64, cpu64.r12);
7877 outs() << " r13 " << format("0x%016" PRIx64, cpu64.r13);
7878 outs() << " r14 " << format("0x%016" PRIx64, cpu64.r14) << "\n";
7879 outs() << " r15 " << format("0x%016" PRIx64, cpu64.r15);
7880 outs() << " rip " << format("0x%016" PRIx64, cpu64.rip) << "\n";
7881 outs() << "rflags " << format("0x%016" PRIx64, cpu64.rflags);
7882 outs() << " cs " << format("0x%016" PRIx64, cpu64.cs);
7883 outs() << " fs " << format("0x%016" PRIx64, cpu64.fs) << "\n";
7884 outs() << " gs " << format("0x%016" PRIx64, cpu64.gs) << "\n";
7887 static void Print_mmst_reg(MachO::mmst_reg_t &r) {
7889 outs() << "\t mmst_reg ";
7890 for (f = 0; f < 10; f++)
7891 outs() << format("%02" PRIx32, (r.mmst_reg[f] & 0xff)) << " ";
7893 outs() << "\t mmst_rsrv ";
7894 for (f = 0; f < 6; f++)
7895 outs() << format("%02" PRIx32, (r.mmst_rsrv[f] & 0xff)) << " ";
7899 static void Print_xmm_reg(MachO::xmm_reg_t &r) {
7901 outs() << "\t xmm_reg ";
7902 for (f = 0; f < 16; f++)
7903 outs() << format("%02" PRIx32, (r.xmm_reg[f] & 0xff)) << " ";
7907 static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) {
7908 outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0];
7909 outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n";
7910 outs() << "\t control: invalid " << fpu.fpu_fcw.invalid;
7911 outs() << " denorm " << fpu.fpu_fcw.denorm;
7912 outs() << " zdiv " << fpu.fpu_fcw.zdiv;
7913 outs() << " ovrfl " << fpu.fpu_fcw.ovrfl;
7914 outs() << " undfl " << fpu.fpu_fcw.undfl;
7915 outs() << " precis " << fpu.fpu_fcw.precis << "\n";
7916 outs() << "\t\t pc ";
7917 if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B)
7918 outs() << "FP_PREC_24B ";
7919 else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B)
7920 outs() << "FP_PREC_53B ";
7921 else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B)
7922 outs() << "FP_PREC_64B ";
7924 outs() << fpu.fpu_fcw.pc << " ";
7926 if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR)
7927 outs() << "FP_RND_NEAR ";
7928 else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN)
7929 outs() << "FP_RND_DOWN ";
7930 else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP)
7931 outs() << "FP_RND_UP ";
7932 else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP)
7933 outs() << "FP_CHOP ";
7935 outs() << "\t status: invalid " << fpu.fpu_fsw.invalid;
7936 outs() << " denorm " << fpu.fpu_fsw.denorm;
7937 outs() << " zdiv " << fpu.fpu_fsw.zdiv;
7938 outs() << " ovrfl " << fpu.fpu_fsw.ovrfl;
7939 outs() << " undfl " << fpu.fpu_fsw.undfl;
7940 outs() << " precis " << fpu.fpu_fsw.precis;
7941 outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n";
7942 outs() << "\t errsumm " << fpu.fpu_fsw.errsumm;
7943 outs() << " c0 " << fpu.fpu_fsw.c0;
7944 outs() << " c1 " << fpu.fpu_fsw.c1;
7945 outs() << " c2 " << fpu.fpu_fsw.c2;
7946 outs() << " tos " << fpu.fpu_fsw.tos;
7947 outs() << " c3 " << fpu.fpu_fsw.c3;
7948 outs() << " busy " << fpu.fpu_fsw.busy << "\n";
7949 outs() << "\t fpu_ftw " << format("0x%02" PRIx32, fpu.fpu_ftw);
7950 outs() << " fpu_rsrv1 " << format("0x%02" PRIx32, fpu.fpu_rsrv1);
7951 outs() << " fpu_fop " << format("0x%04" PRIx32, fpu.fpu_fop);
7952 outs() << " fpu_ip " << format("0x%08" PRIx32, fpu.fpu_ip) << "\n";
7953 outs() << "\t fpu_cs " << format("0x%04" PRIx32, fpu.fpu_cs);
7954 outs() << " fpu_rsrv2 " << format("0x%04" PRIx32, fpu.fpu_rsrv2);
7955 outs() << " fpu_dp " << format("0x%08" PRIx32, fpu.fpu_dp);
7956 outs() << " fpu_ds " << format("0x%04" PRIx32, fpu.fpu_ds) << "\n";
7957 outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32, fpu.fpu_rsrv3);
7958 outs() << " fpu_mxcsr " << format("0x%08" PRIx32, fpu.fpu_mxcsr);
7959 outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32, fpu.fpu_mxcsrmask);
7961 outs() << "\t fpu_stmm0:\n";
7962 Print_mmst_reg(fpu.fpu_stmm0);
7963 outs() << "\t fpu_stmm1:\n";
7964 Print_mmst_reg(fpu.fpu_stmm1);
7965 outs() << "\t fpu_stmm2:\n";
7966 Print_mmst_reg(fpu.fpu_stmm2);
7967 outs() << "\t fpu_stmm3:\n";
7968 Print_mmst_reg(fpu.fpu_stmm3);
7969 outs() << "\t fpu_stmm4:\n";
7970 Print_mmst_reg(fpu.fpu_stmm4);
7971 outs() << "\t fpu_stmm5:\n";
7972 Print_mmst_reg(fpu.fpu_stmm5);
7973 outs() << "\t fpu_stmm6:\n";
7974 Print_mmst_reg(fpu.fpu_stmm6);
7975 outs() << "\t fpu_stmm7:\n";
7976 Print_mmst_reg(fpu.fpu_stmm7);
7977 outs() << "\t fpu_xmm0:\n";
7978 Print_xmm_reg(fpu.fpu_xmm0);
7979 outs() << "\t fpu_xmm1:\n";
7980 Print_xmm_reg(fpu.fpu_xmm1);
7981 outs() << "\t fpu_xmm2:\n";
7982 Print_xmm_reg(fpu.fpu_xmm2);
7983 outs() << "\t fpu_xmm3:\n";
7984 Print_xmm_reg(fpu.fpu_xmm3);
7985 outs() << "\t fpu_xmm4:\n";
7986 Print_xmm_reg(fpu.fpu_xmm4);
7987 outs() << "\t fpu_xmm5:\n";
7988 Print_xmm_reg(fpu.fpu_xmm5);
7989 outs() << "\t fpu_xmm6:\n";
7990 Print_xmm_reg(fpu.fpu_xmm6);
7991 outs() << "\t fpu_xmm7:\n";
7992 Print_xmm_reg(fpu.fpu_xmm7);
7993 outs() << "\t fpu_xmm8:\n";
7994 Print_xmm_reg(fpu.fpu_xmm8);
7995 outs() << "\t fpu_xmm9:\n";
7996 Print_xmm_reg(fpu.fpu_xmm9);
7997 outs() << "\t fpu_xmm10:\n";
7998 Print_xmm_reg(fpu.fpu_xmm10);
7999 outs() << "\t fpu_xmm11:\n";
8000 Print_xmm_reg(fpu.fpu_xmm11);
8001 outs() << "\t fpu_xmm12:\n";
8002 Print_xmm_reg(fpu.fpu_xmm12);
8003 outs() << "\t fpu_xmm13:\n";
8004 Print_xmm_reg(fpu.fpu_xmm13);
8005 outs() << "\t fpu_xmm14:\n";
8006 Print_xmm_reg(fpu.fpu_xmm14);
8007 outs() << "\t fpu_xmm15:\n";
8008 Print_xmm_reg(fpu.fpu_xmm15);
8009 outs() << "\t fpu_rsrv4:\n";
8010 for (uint32_t f = 0; f < 6; f++) {
8012 for (uint32_t g = 0; g < 16; g++)
8013 outs() << format("%02" PRIx32, fpu.fpu_rsrv4[f * g]) << " ";
8016 outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32, fpu.fpu_reserved1);
8020 static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) {
8021 outs() << "\t trapno " << format("0x%08" PRIx32, exc64.trapno);
8022 outs() << " err " << format("0x%08" PRIx32, exc64.err);
8023 outs() << " faultvaddr " << format("0x%016" PRIx64, exc64.faultvaddr) << "\n";
8026 static void PrintThreadCommand(MachO::thread_command t, const char *Ptr,
8027 bool isLittleEndian, uint32_t cputype) {
8028 if (t.cmd == MachO::LC_THREAD)
8029 outs() << " cmd LC_THREAD\n";
8030 else if (t.cmd == MachO::LC_UNIXTHREAD)
8031 outs() << " cmd LC_UNIXTHREAD\n";
8033 outs() << " cmd " << t.cmd << " (unknown)\n";
8034 outs() << " cmdsize " << t.cmdsize;
8035 if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t))
8036 outs() << " Incorrect size\n";
8040 const char *begin = Ptr + sizeof(struct MachO::thread_command);
8041 const char *end = Ptr + t.cmdsize;
8042 uint32_t flavor, count, left;
8043 if (cputype == MachO::CPU_TYPE_X86_64) {
8044 while (begin < end) {
8045 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8046 memcpy((char *)&flavor, begin, sizeof(uint32_t));
8047 begin += sizeof(uint32_t);
8052 if (isLittleEndian != sys::IsLittleEndianHost)
8053 sys::swapByteOrder(flavor);
8054 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8055 memcpy((char *)&count, begin, sizeof(uint32_t));
8056 begin += sizeof(uint32_t);
8061 if (isLittleEndian != sys::IsLittleEndianHost)
8062 sys::swapByteOrder(count);
8063 if (flavor == MachO::x86_THREAD_STATE64) {
8064 outs() << " flavor x86_THREAD_STATE64\n";
8065 if (count == MachO::x86_THREAD_STATE64_COUNT)
8066 outs() << " count x86_THREAD_STATE64_COUNT\n";
8068 outs() << " count " << count
8069 << " (not x86_THREAD_STATE64_COUNT)\n";
8070 MachO::x86_thread_state64_t cpu64;
8072 if (left >= sizeof(MachO::x86_thread_state64_t)) {
8073 memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t));
8074 begin += sizeof(MachO::x86_thread_state64_t);
8076 memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t));
8077 memcpy(&cpu64, begin, left);
8080 if (isLittleEndian != sys::IsLittleEndianHost)
8082 Print_x86_thread_state64_t(cpu64);
8083 } else if (flavor == MachO::x86_THREAD_STATE) {
8084 outs() << " flavor x86_THREAD_STATE\n";
8085 if (count == MachO::x86_THREAD_STATE_COUNT)
8086 outs() << " count x86_THREAD_STATE_COUNT\n";
8088 outs() << " count " << count
8089 << " (not x86_THREAD_STATE_COUNT)\n";
8090 struct MachO::x86_thread_state_t ts;
8092 if (left >= sizeof(MachO::x86_thread_state_t)) {
8093 memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t));
8094 begin += sizeof(MachO::x86_thread_state_t);
8096 memset(&ts, '\0', sizeof(MachO::x86_thread_state_t));
8097 memcpy(&ts, begin, left);
8100 if (isLittleEndian != sys::IsLittleEndianHost)
8102 if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) {
8103 outs() << "\t tsh.flavor x86_THREAD_STATE64 ";
8104 if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT)
8105 outs() << "tsh.count x86_THREAD_STATE64_COUNT\n";
8107 outs() << "tsh.count " << ts.tsh.count
8108 << " (not x86_THREAD_STATE64_COUNT\n";
8109 Print_x86_thread_state64_t(ts.uts.ts64);
8111 outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count "
8112 << ts.tsh.count << "\n";
8114 } else if (flavor == MachO::x86_FLOAT_STATE) {
8115 outs() << " flavor x86_FLOAT_STATE\n";
8116 if (count == MachO::x86_FLOAT_STATE_COUNT)
8117 outs() << " count x86_FLOAT_STATE_COUNT\n";
8119 outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n";
8120 struct MachO::x86_float_state_t fs;
8122 if (left >= sizeof(MachO::x86_float_state_t)) {
8123 memcpy(&fs, begin, sizeof(MachO::x86_float_state_t));
8124 begin += sizeof(MachO::x86_float_state_t);
8126 memset(&fs, '\0', sizeof(MachO::x86_float_state_t));
8127 memcpy(&fs, begin, left);
8130 if (isLittleEndian != sys::IsLittleEndianHost)
8132 if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) {
8133 outs() << "\t fsh.flavor x86_FLOAT_STATE64 ";
8134 if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT)
8135 outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n";
8137 outs() << "fsh.count " << fs.fsh.count
8138 << " (not x86_FLOAT_STATE64_COUNT\n";
8139 Print_x86_float_state_t(fs.ufs.fs64);
8141 outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count "
8142 << fs.fsh.count << "\n";
8144 } else if (flavor == MachO::x86_EXCEPTION_STATE) {
8145 outs() << " flavor x86_EXCEPTION_STATE\n";
8146 if (count == MachO::x86_EXCEPTION_STATE_COUNT)
8147 outs() << " count x86_EXCEPTION_STATE_COUNT\n";
8149 outs() << " count " << count
8150 << " (not x86_EXCEPTION_STATE_COUNT)\n";
8151 struct MachO::x86_exception_state_t es;
8153 if (left >= sizeof(MachO::x86_exception_state_t)) {
8154 memcpy(&es, begin, sizeof(MachO::x86_exception_state_t));
8155 begin += sizeof(MachO::x86_exception_state_t);
8157 memset(&es, '\0', sizeof(MachO::x86_exception_state_t));
8158 memcpy(&es, begin, left);
8161 if (isLittleEndian != sys::IsLittleEndianHost)
8163 if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) {
8164 outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n";
8165 if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT)
8166 outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n";
8168 outs() << "\t esh.count " << es.esh.count
8169 << " (not x86_EXCEPTION_STATE64_COUNT\n";
8170 Print_x86_exception_state_t(es.ues.es64);
8172 outs() << "\t esh.flavor " << es.esh.flavor << " esh.count "
8173 << es.esh.count << "\n";
8176 outs() << " flavor " << flavor << " (unknown)\n";
8177 outs() << " count " << count << "\n";
8178 outs() << " state (unknown)\n";
8179 begin += count * sizeof(uint32_t);
8183 while (begin < end) {
8184 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8185 memcpy((char *)&flavor, begin, sizeof(uint32_t));
8186 begin += sizeof(uint32_t);
8191 if (isLittleEndian != sys::IsLittleEndianHost)
8192 sys::swapByteOrder(flavor);
8193 if (end - begin > (ptrdiff_t)sizeof(uint32_t)) {
8194 memcpy((char *)&count, begin, sizeof(uint32_t));
8195 begin += sizeof(uint32_t);
8200 if (isLittleEndian != sys::IsLittleEndianHost)
8201 sys::swapByteOrder(count);
8202 outs() << " flavor " << flavor << "\n";
8203 outs() << " count " << count << "\n";
8204 outs() << " state (Unknown cputype/cpusubtype)\n";
8205 begin += count * sizeof(uint32_t);
8210 static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) {
8211 if (dl.cmd == MachO::LC_ID_DYLIB)
8212 outs() << " cmd LC_ID_DYLIB\n";
8213 else if (dl.cmd == MachO::LC_LOAD_DYLIB)
8214 outs() << " cmd LC_LOAD_DYLIB\n";
8215 else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB)
8216 outs() << " cmd LC_LOAD_WEAK_DYLIB\n";
8217 else if (dl.cmd == MachO::LC_REEXPORT_DYLIB)
8218 outs() << " cmd LC_REEXPORT_DYLIB\n";
8219 else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB)
8220 outs() << " cmd LC_LAZY_LOAD_DYLIB\n";
8221 else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
8222 outs() << " cmd LC_LOAD_UPWARD_DYLIB\n";
8224 outs() << " cmd " << dl.cmd << " (unknown)\n";
8225 outs() << " cmdsize " << dl.cmdsize;
8226 if (dl.cmdsize < sizeof(struct MachO::dylib_command))
8227 outs() << " Incorrect size\n";
8230 if (dl.dylib.name < dl.cmdsize) {
8231 const char *P = (const char *)(Ptr) + dl.dylib.name;
8232 outs() << " name " << P << " (offset " << dl.dylib.name << ")\n";
8234 outs() << " name ?(bad offset " << dl.dylib.name << ")\n";
8236 outs() << " time stamp " << dl.dylib.timestamp << " ";
8237 time_t t = dl.dylib.timestamp;
8238 outs() << ctime(&t);
8239 outs() << " current version ";
8240 if (dl.dylib.current_version == 0xffffffff)
8243 outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "."
8244 << ((dl.dylib.current_version >> 8) & 0xff) << "."
8245 << (dl.dylib.current_version & 0xff) << "\n";
8246 outs() << "compatibility version ";
8247 if (dl.dylib.compatibility_version == 0xffffffff)
8250 outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
8251 << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
8252 << (dl.dylib.compatibility_version & 0xff) << "\n";
8255 static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld,
8256 uint32_t object_size) {
8257 if (ld.cmd == MachO::LC_CODE_SIGNATURE)
8258 outs() << " cmd LC_FUNCTION_STARTS\n";
8259 else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO)
8260 outs() << " cmd LC_SEGMENT_SPLIT_INFO\n";
8261 else if (ld.cmd == MachO::LC_FUNCTION_STARTS)
8262 outs() << " cmd LC_FUNCTION_STARTS\n";
8263 else if (ld.cmd == MachO::LC_DATA_IN_CODE)
8264 outs() << " cmd LC_DATA_IN_CODE\n";
8265 else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS)
8266 outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n";
8267 else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT)
8268 outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n";
8270 outs() << " cmd " << ld.cmd << " (?)\n";
8271 outs() << " cmdsize " << ld.cmdsize;
8272 if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command))
8273 outs() << " Incorrect size\n";
8276 outs() << " dataoff " << ld.dataoff;
8277 if (ld.dataoff > object_size)
8278 outs() << " (past end of file)\n";
8281 outs() << " datasize " << ld.datasize;
8282 uint64_t big_size = ld.dataoff;
8283 big_size += ld.datasize;
8284 if (big_size > object_size)
8285 outs() << " (past end of file)\n";
8290 static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype,
8291 uint32_t cputype, bool verbose) {
8292 StringRef Buf = Obj->getData();
8294 for (const auto &Command : Obj->load_commands()) {
8295 outs() << "Load command " << Index++ << "\n";
8296 if (Command.C.cmd == MachO::LC_SEGMENT) {
8297 MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command);
8298 const char *sg_segname = SLC.segname;
8299 PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr,
8300 SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot,
8301 SLC.initprot, SLC.nsects, SLC.flags, Buf.size(),
8303 for (unsigned j = 0; j < SLC.nsects; j++) {
8304 MachO::section S = Obj->getSection(Command, j);
8305 PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align,
8306 S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2,
8307 SLC.cmd, sg_segname, filetype, Buf.size(), verbose);
8309 } else if (Command.C.cmd == MachO::LC_SEGMENT_64) {
8310 MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command);
8311 const char *sg_segname = SLC_64.segname;
8312 PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname,
8313 SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff,
8314 SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot,
8315 SLC_64.nsects, SLC_64.flags, Buf.size(), verbose);
8316 for (unsigned j = 0; j < SLC_64.nsects; j++) {
8317 MachO::section_64 S_64 = Obj->getSection64(Command, j);
8318 PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size,
8319 S_64.offset, S_64.align, S_64.reloff, S_64.nreloc,
8320 S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd,
8321 sg_segname, filetype, Buf.size(), verbose);
8323 } else if (Command.C.cmd == MachO::LC_SYMTAB) {
8324 MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
8325 PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size());
8326 } else if (Command.C.cmd == MachO::LC_DYSYMTAB) {
8327 MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand();
8328 MachO::symtab_command Symtab = Obj->getSymtabLoadCommand();
8329 PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(),
8331 } else if (Command.C.cmd == MachO::LC_DYLD_INFO ||
8332 Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) {
8333 MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command);
8334 PrintDyldInfoLoadCommand(DyldInfo, Buf.size());
8335 } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER ||
8336 Command.C.cmd == MachO::LC_ID_DYLINKER ||
8337 Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) {
8338 MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command);
8339 PrintDyldLoadCommand(Dyld, Command.Ptr);
8340 } else if (Command.C.cmd == MachO::LC_UUID) {
8341 MachO::uuid_command Uuid = Obj->getUuidCommand(Command);
8342 PrintUuidLoadCommand(Uuid);
8343 } else if (Command.C.cmd == MachO::LC_RPATH) {
8344 MachO::rpath_command Rpath = Obj->getRpathCommand(Command);
8345 PrintRpathLoadCommand(Rpath, Command.Ptr);
8346 } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX ||
8347 Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS) {
8348 MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command);
8349 PrintVersionMinLoadCommand(Vd);
8350 } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) {
8351 MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command);
8352 PrintSourceVersionCommand(Sd);
8353 } else if (Command.C.cmd == MachO::LC_MAIN) {
8354 MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command);
8355 PrintEntryPointCommand(Ep);
8356 } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) {
8357 MachO::encryption_info_command Ei =
8358 Obj->getEncryptionInfoCommand(Command);
8359 PrintEncryptionInfoCommand(Ei, Buf.size());
8360 } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) {
8361 MachO::encryption_info_command_64 Ei =
8362 Obj->getEncryptionInfoCommand64(Command);
8363 PrintEncryptionInfoCommand64(Ei, Buf.size());
8364 } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) {
8365 MachO::linker_option_command Lo =
8366 Obj->getLinkerOptionLoadCommand(Command);
8367 PrintLinkerOptionCommand(Lo, Command.Ptr);
8368 } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) {
8369 MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command);
8370 PrintSubFrameworkCommand(Sf, Command.Ptr);
8371 } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) {
8372 MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command);
8373 PrintSubUmbrellaCommand(Sf, Command.Ptr);
8374 } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) {
8375 MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command);
8376 PrintSubLibraryCommand(Sl, Command.Ptr);
8377 } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) {
8378 MachO::sub_client_command Sc = Obj->getSubClientCommand(Command);
8379 PrintSubClientCommand(Sc, Command.Ptr);
8380 } else if (Command.C.cmd == MachO::LC_ROUTINES) {
8381 MachO::routines_command Rc = Obj->getRoutinesCommand(Command);
8382 PrintRoutinesCommand(Rc);
8383 } else if (Command.C.cmd == MachO::LC_ROUTINES_64) {
8384 MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command);
8385 PrintRoutinesCommand64(Rc);
8386 } else if (Command.C.cmd == MachO::LC_THREAD ||
8387 Command.C.cmd == MachO::LC_UNIXTHREAD) {
8388 MachO::thread_command Tc = Obj->getThreadCommand(Command);
8389 PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype);
8390 } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB ||
8391 Command.C.cmd == MachO::LC_ID_DYLIB ||
8392 Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
8393 Command.C.cmd == MachO::LC_REEXPORT_DYLIB ||
8394 Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
8395 Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) {
8396 MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command);
8397 PrintDylibCommand(Dl, Command.Ptr);
8398 } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE ||
8399 Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO ||
8400 Command.C.cmd == MachO::LC_FUNCTION_STARTS ||
8401 Command.C.cmd == MachO::LC_DATA_IN_CODE ||
8402 Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS ||
8403 Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) {
8404 MachO::linkedit_data_command Ld =
8405 Obj->getLinkeditDataLoadCommand(Command);
8406 PrintLinkEditDataCommand(Ld, Buf.size());
8408 outs() << " cmd ?(" << format("0x%08" PRIx32, Command.C.cmd)
8410 outs() << " cmdsize " << Command.C.cmdsize << "\n";
8411 // TODO: get and print the raw bytes of the load command.
8413 // TODO: print all the other kinds of load commands.
8417 static void getAndPrintMachHeader(const MachOObjectFile *Obj,
8418 uint32_t &filetype, uint32_t &cputype,
8420 if (Obj->is64Bit()) {
8421 MachO::mach_header_64 H_64;
8422 H_64 = Obj->getHeader64();
8423 PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype,
8424 H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose);
8425 filetype = H_64.filetype;
8426 cputype = H_64.cputype;
8428 MachO::mach_header H;
8429 H = Obj->getHeader();
8430 PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds,
8431 H.sizeofcmds, H.flags, verbose);
8432 filetype = H.filetype;
8433 cputype = H.cputype;
8437 void llvm::printMachOFileHeader(const object::ObjectFile *Obj) {
8438 const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
8439 uint32_t filetype = 0;
8440 uint32_t cputype = 0;
8441 getAndPrintMachHeader(file, filetype, cputype, !NonVerbose);
8442 PrintLoadCommands(file, filetype, cputype, !NonVerbose);
8445 //===----------------------------------------------------------------------===//
8446 // export trie dumping
8447 //===----------------------------------------------------------------------===//
8449 void llvm::printMachOExportsTrie(const object::MachOObjectFile *Obj) {
8450 for (const llvm::object::ExportEntry &Entry : Obj->exports()) {
8451 uint64_t Flags = Entry.flags();
8452 bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT);
8453 bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION);
8454 bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
8455 MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL);
8456 bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) ==
8457 MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE);
8458 bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER);
8460 outs() << "[re-export] ";
8462 outs() << format("0x%08llX ",
8463 Entry.address()); // FIXME:add in base address
8464 outs() << Entry.name();
8465 if (WeakDef || ThreadLocal || Resolver || Abs) {
8466 bool NeedsComma = false;
8469 outs() << "weak_def";
8475 outs() << "per-thread";
8481 outs() << "absolute";
8487 outs() << format("resolver=0x%08llX", Entry.other());
8493 StringRef DylibName = "unknown";
8494 int Ordinal = Entry.other() - 1;
8495 Obj->getLibraryShortNameByIndex(Ordinal, DylibName);
8496 if (Entry.otherName().empty())
8497 outs() << " (from " << DylibName << ")";
8499 outs() << " (" << Entry.otherName() << " from " << DylibName << ")";
8505 //===----------------------------------------------------------------------===//
8506 // rebase table dumping
8507 //===----------------------------------------------------------------------===//
8512 SegInfo(const object::MachOObjectFile *Obj);
8514 StringRef segmentName(uint32_t SegIndex);
8515 StringRef sectionName(uint32_t SegIndex, uint64_t SegOffset);
8516 uint64_t address(uint32_t SegIndex, uint64_t SegOffset);
8517 bool isValidSegIndexAndOffset(uint32_t SegIndex, uint64_t SegOffset);
8520 struct SectionInfo {
8523 StringRef SectionName;
8524 StringRef SegmentName;
8525 uint64_t OffsetInSegment;
8526 uint64_t SegmentStartAddress;
8527 uint32_t SegmentIndex;
8529 const SectionInfo &findSection(uint32_t SegIndex, uint64_t SegOffset);
8530 SmallVector<SectionInfo, 32> Sections;
8534 SegInfo::SegInfo(const object::MachOObjectFile *Obj) {
8535 // Build table of sections so segIndex/offset pairs can be translated.
8536 uint32_t CurSegIndex = Obj->hasPageZeroSegment() ? 1 : 0;
8537 StringRef CurSegName;
8538 uint64_t CurSegAddress;
8539 for (const SectionRef &Section : Obj->sections()) {
8541 error(Section.getName(Info.SectionName));
8542 Info.Address = Section.getAddress();
8543 Info.Size = Section.getSize();
8545 Obj->getSectionFinalSegmentName(Section.getRawDataRefImpl());
8546 if (!Info.SegmentName.equals(CurSegName)) {
8548 CurSegName = Info.SegmentName;
8549 CurSegAddress = Info.Address;
8551 Info.SegmentIndex = CurSegIndex - 1;
8552 Info.OffsetInSegment = Info.Address - CurSegAddress;
8553 Info.SegmentStartAddress = CurSegAddress;
8554 Sections.push_back(Info);
8558 StringRef SegInfo::segmentName(uint32_t SegIndex) {
8559 for (const SectionInfo &SI : Sections) {
8560 if (SI.SegmentIndex == SegIndex)
8561 return SI.SegmentName;
8563 llvm_unreachable("invalid segIndex");
8566 bool SegInfo::isValidSegIndexAndOffset(uint32_t SegIndex,
8567 uint64_t OffsetInSeg) {
8568 for (const SectionInfo &SI : Sections) {
8569 if (SI.SegmentIndex != SegIndex)
8571 if (SI.OffsetInSegment > OffsetInSeg)
8573 if (OffsetInSeg >= (SI.OffsetInSegment + SI.Size))
8580 const SegInfo::SectionInfo &SegInfo::findSection(uint32_t SegIndex,
8581 uint64_t OffsetInSeg) {
8582 for (const SectionInfo &SI : Sections) {
8583 if (SI.SegmentIndex != SegIndex)
8585 if (SI.OffsetInSegment > OffsetInSeg)
8587 if (OffsetInSeg >= (SI.OffsetInSegment + SI.Size))
8591 llvm_unreachable("segIndex and offset not in any section");
8594 StringRef SegInfo::sectionName(uint32_t SegIndex, uint64_t OffsetInSeg) {
8595 return findSection(SegIndex, OffsetInSeg).SectionName;
8598 uint64_t SegInfo::address(uint32_t SegIndex, uint64_t OffsetInSeg) {
8599 const SectionInfo &SI = findSection(SegIndex, OffsetInSeg);
8600 return SI.SegmentStartAddress + OffsetInSeg;
8603 void llvm::printMachORebaseTable(const object::MachOObjectFile *Obj) {
8604 // Build table of sections so names can used in final output.
8605 SegInfo sectionTable(Obj);
8607 outs() << "segment section address type\n";
8608 for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable()) {
8609 uint32_t SegIndex = Entry.segmentIndex();
8610 uint64_t OffsetInSeg = Entry.segmentOffset();
8611 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8612 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8613 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8615 // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer
8616 outs() << format("%-8s %-18s 0x%08" PRIX64 " %s\n",
8617 SegmentName.str().c_str(), SectionName.str().c_str(),
8618 Address, Entry.typeName().str().c_str());
8622 static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) {
8623 StringRef DylibName;
8625 case MachO::BIND_SPECIAL_DYLIB_SELF:
8626 return "this-image";
8627 case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE:
8628 return "main-executable";
8629 case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP:
8630 return "flat-namespace";
8633 std::error_code EC =
8634 Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName);
8636 return "<<bad library ordinal>>";
8640 return "<<unknown special ordinal>>";
8643 //===----------------------------------------------------------------------===//
8644 // bind table dumping
8645 //===----------------------------------------------------------------------===//
8647 void llvm::printMachOBindTable(const object::MachOObjectFile *Obj) {
8648 // Build table of sections so names can used in final output.
8649 SegInfo sectionTable(Obj);
8651 outs() << "segment section address type "
8652 "addend dylib symbol\n";
8653 for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable()) {
8654 uint32_t SegIndex = Entry.segmentIndex();
8655 uint64_t OffsetInSeg = Entry.segmentOffset();
8656 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8657 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8658 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8660 // Table lines look like:
8661 // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard
8663 if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT)
8664 Attr = " (weak_import)";
8665 outs() << left_justify(SegmentName, 8) << " "
8666 << left_justify(SectionName, 18) << " "
8667 << format_hex(Address, 10, true) << " "
8668 << left_justify(Entry.typeName(), 8) << " "
8669 << format_decimal(Entry.addend(), 8) << " "
8670 << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
8671 << Entry.symbolName() << Attr << "\n";
8675 //===----------------------------------------------------------------------===//
8676 // lazy bind table dumping
8677 //===----------------------------------------------------------------------===//
8679 void llvm::printMachOLazyBindTable(const object::MachOObjectFile *Obj) {
8680 // Build table of sections so names can used in final output.
8681 SegInfo sectionTable(Obj);
8683 outs() << "segment section address "
8685 for (const llvm::object::MachOBindEntry &Entry : Obj->lazyBindTable()) {
8686 uint32_t SegIndex = Entry.segmentIndex();
8687 uint64_t OffsetInSeg = Entry.segmentOffset();
8688 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8689 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8690 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8692 // Table lines look like:
8693 // __DATA __got 0x00012010 libSystem ___stack_chk_guard
8694 outs() << left_justify(SegmentName, 8) << " "
8695 << left_justify(SectionName, 18) << " "
8696 << format_hex(Address, 10, true) << " "
8697 << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " "
8698 << Entry.symbolName() << "\n";
8702 //===----------------------------------------------------------------------===//
8703 // weak bind table dumping
8704 //===----------------------------------------------------------------------===//
8706 void llvm::printMachOWeakBindTable(const object::MachOObjectFile *Obj) {
8707 // Build table of sections so names can used in final output.
8708 SegInfo sectionTable(Obj);
8710 outs() << "segment section address "
8711 "type addend symbol\n";
8712 for (const llvm::object::MachOBindEntry &Entry : Obj->weakBindTable()) {
8713 // Strong symbols don't have a location to update.
8714 if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) {
8715 outs() << " strong "
8716 << Entry.symbolName() << "\n";
8719 uint32_t SegIndex = Entry.segmentIndex();
8720 uint64_t OffsetInSeg = Entry.segmentOffset();
8721 StringRef SegmentName = sectionTable.segmentName(SegIndex);
8722 StringRef SectionName = sectionTable.sectionName(SegIndex, OffsetInSeg);
8723 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8725 // Table lines look like:
8726 // __DATA __data 0x00001000 pointer 0 _foo
8727 outs() << left_justify(SegmentName, 8) << " "
8728 << left_justify(SectionName, 18) << " "
8729 << format_hex(Address, 10, true) << " "
8730 << left_justify(Entry.typeName(), 8) << " "
8731 << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName()
8736 // get_dyld_bind_info_symbolname() is used for disassembly and passed an
8737 // address, ReferenceValue, in the Mach-O file and looks in the dyld bind
8738 // information for that address. If the address is found its binding symbol
8739 // name is returned. If not nullptr is returned.
8740 static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
8741 struct DisassembleInfo *info) {
8742 if (info->bindtable == nullptr) {
8743 info->bindtable = new (BindTable);
8744 SegInfo sectionTable(info->O);
8745 for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable()) {
8746 uint32_t SegIndex = Entry.segmentIndex();
8747 uint64_t OffsetInSeg = Entry.segmentOffset();
8748 if (!sectionTable.isValidSegIndexAndOffset(SegIndex, OffsetInSeg))
8750 uint64_t Address = sectionTable.address(SegIndex, OffsetInSeg);
8751 const char *SymbolName = nullptr;
8752 StringRef name = Entry.symbolName();
8754 SymbolName = name.data();
8755 info->bindtable->push_back(std::make_pair(Address, SymbolName));
8758 for (bind_table_iterator BI = info->bindtable->begin(),
8759 BE = info->bindtable->end();
8761 uint64_t Address = BI->first;
8762 if (ReferenceValue == Address) {
8763 const char *SymbolName = BI->second;