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-readobj.
12 //===----------------------------------------------------------------------===//
14 #include "llvm-readobj.h"
16 #include "ObjDumper.h"
17 #include "StackMapPrinter.h"
18 #include "StreamWriter.h"
19 #include "llvm/ADT/SmallString.h"
20 #include "llvm/ADT/StringExtras.h"
21 #include "llvm/Object/MachO.h"
22 #include "llvm/Support/Casting.h"
25 using namespace object;
29 class MachODumper : public ObjDumper {
31 MachODumper(const MachOObjectFile *Obj, StreamWriter& Writer)
35 void printFileHeaders() override;
36 void printSections() override;
37 void printRelocations() override;
38 void printSymbols() override;
39 void printDynamicSymbols() override;
40 void printUnwindInfo() override;
41 void printStackMap() const override;
44 void printMachODataInCode() override;
45 void printMachOVersionMin() override;
46 void printMachODysymtab() override;
47 void printMachOSegment() override;
50 template<class MachHeader>
51 void printFileHeaders(const MachHeader &Header);
53 void printSymbol(const SymbolRef &Symbol);
55 void printRelocation(const RelocationRef &Reloc);
57 void printRelocation(const MachOObjectFile *Obj, const RelocationRef &Reloc);
59 void printSections(const MachOObjectFile *Obj);
61 const MachOObjectFile *Obj;
69 std::error_code createMachODumper(const object::ObjectFile *Obj,
71 std::unique_ptr<ObjDumper> &Result) {
72 const MachOObjectFile *MachOObj = dyn_cast<MachOObjectFile>(Obj);
74 return readobj_error::unsupported_obj_file_format;
76 Result.reset(new MachODumper(MachOObj, Writer));
77 return readobj_error::success;
82 static const EnumEntry<uint32_t> MachOMagics[] = {
83 { "Magic", MachO::MH_MAGIC },
84 { "Cigam", MachO::MH_CIGAM },
85 { "Magic64", MachO::MH_MAGIC_64 },
86 { "Cigam64", MachO::MH_CIGAM_64 },
87 { "FatMagic", MachO::FAT_MAGIC },
88 { "FatCigam", MachO::FAT_CIGAM },
91 static const EnumEntry<uint32_t> MachOHeaderFileTypes[] = {
92 { "Relocatable", MachO::MH_OBJECT },
93 { "Executable", MachO::MH_EXECUTE },
94 { "FixedVMLibrary", MachO::MH_FVMLIB },
95 { "Core", MachO::MH_CORE },
96 { "PreloadedExecutable", MachO::MH_PRELOAD },
97 { "DynamicLibrary", MachO::MH_DYLIB },
98 { "DynamicLinker", MachO::MH_DYLINKER },
99 { "Bundle", MachO::MH_BUNDLE },
100 { "DynamicLibraryStub", MachO::MH_DYLIB_STUB },
101 { "DWARFSymbol", MachO::MH_DSYM },
102 { "KextBundle", MachO::MH_KEXT_BUNDLE },
105 static const EnumEntry<uint32_t> MachOHeaderCpuTypes[] = {
106 { "Any" , static_cast<uint32_t>(MachO::CPU_TYPE_ANY) },
107 { "X86" , MachO::CPU_TYPE_X86 },
108 { "X86-64" , MachO::CPU_TYPE_X86_64 },
109 { "Mc98000" , MachO::CPU_TYPE_MC98000 },
110 { "Arm" , MachO::CPU_TYPE_ARM },
111 { "Arm64" , MachO::CPU_TYPE_ARM64 },
112 { "Sparc" , MachO::CPU_TYPE_SPARC },
113 { "PowerPC" , MachO::CPU_TYPE_POWERPC },
114 { "PowerPC64" , MachO::CPU_TYPE_POWERPC64 },
117 static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesX86[] = {
118 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_I386_ALL),
119 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_386),
120 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_486),
121 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_486SX),
122 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_586),
123 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTPRO),
124 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTII_M3),
125 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTII_M5),
126 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_CELERON),
127 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_CELERON_MOBILE),
128 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3),
129 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3_M),
130 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3_XEON),
131 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_M),
132 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_4),
133 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_4_M),
134 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ITANIUM),
135 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ITANIUM_2),
136 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_XEON),
137 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_XEON_MP),
140 static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesX64[] = {
141 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_64_ALL),
142 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_ARCH1),
143 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_64_H),
146 static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesARM[] = {
147 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_ALL),
148 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V4T),
149 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V6),
150 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V5),
151 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V5TEJ),
152 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_XSCALE),
153 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7),
154 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7S),
155 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7K),
156 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V6M),
157 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7M),
158 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7EM),
161 static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesARM64[] = {
162 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM64_ALL),
165 static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesSPARC[] = {
166 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_SPARC_ALL),
169 static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesPPC[] = {
170 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_ALL),
171 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_601),
172 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_602),
173 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603),
174 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603e),
175 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603ev),
176 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_604),
177 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_604e),
178 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_620),
179 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_750),
180 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_7400),
181 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_7450),
182 LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_970),
185 static const EnumEntry<uint32_t> MachOHeaderFlags[] = {
186 LLVM_READOBJ_ENUM_ENT(MachO, MH_NOUNDEFS),
187 LLVM_READOBJ_ENUM_ENT(MachO, MH_INCRLINK),
188 LLVM_READOBJ_ENUM_ENT(MachO, MH_DYLDLINK),
189 LLVM_READOBJ_ENUM_ENT(MachO, MH_BINDATLOAD),
190 LLVM_READOBJ_ENUM_ENT(MachO, MH_PREBOUND),
191 LLVM_READOBJ_ENUM_ENT(MachO, MH_SPLIT_SEGS),
192 LLVM_READOBJ_ENUM_ENT(MachO, MH_LAZY_INIT),
193 LLVM_READOBJ_ENUM_ENT(MachO, MH_TWOLEVEL),
194 LLVM_READOBJ_ENUM_ENT(MachO, MH_FORCE_FLAT),
195 LLVM_READOBJ_ENUM_ENT(MachO, MH_NOMULTIDEFS),
196 LLVM_READOBJ_ENUM_ENT(MachO, MH_NOFIXPREBINDING),
197 LLVM_READOBJ_ENUM_ENT(MachO, MH_PREBINDABLE),
198 LLVM_READOBJ_ENUM_ENT(MachO, MH_ALLMODSBOUND),
199 LLVM_READOBJ_ENUM_ENT(MachO, MH_SUBSECTIONS_VIA_SYMBOLS),
200 LLVM_READOBJ_ENUM_ENT(MachO, MH_CANONICAL),
201 LLVM_READOBJ_ENUM_ENT(MachO, MH_WEAK_DEFINES),
202 LLVM_READOBJ_ENUM_ENT(MachO, MH_BINDS_TO_WEAK),
203 LLVM_READOBJ_ENUM_ENT(MachO, MH_ALLOW_STACK_EXECUTION),
204 LLVM_READOBJ_ENUM_ENT(MachO, MH_ROOT_SAFE),
205 LLVM_READOBJ_ENUM_ENT(MachO, MH_SETUID_SAFE),
206 LLVM_READOBJ_ENUM_ENT(MachO, MH_NO_REEXPORTED_DYLIBS),
207 LLVM_READOBJ_ENUM_ENT(MachO, MH_PIE),
208 LLVM_READOBJ_ENUM_ENT(MachO, MH_DEAD_STRIPPABLE_DYLIB),
209 LLVM_READOBJ_ENUM_ENT(MachO, MH_HAS_TLV_DESCRIPTORS),
210 LLVM_READOBJ_ENUM_ENT(MachO, MH_NO_HEAP_EXECUTION),
211 LLVM_READOBJ_ENUM_ENT(MachO, MH_APP_EXTENSION_SAFE),
214 static const EnumEntry<unsigned> MachOSectionAttributes[] = {
215 { "LocReloc" , 1 << 0 /*S_ATTR_LOC_RELOC */ },
216 { "ExtReloc" , 1 << 1 /*S_ATTR_EXT_RELOC */ },
217 { "SomeInstructions" , 1 << 2 /*S_ATTR_SOME_INSTRUCTIONS */ },
218 { "Debug" , 1 << 17 /*S_ATTR_DEBUG */ },
219 { "SelfModifyingCode", 1 << 18 /*S_ATTR_SELF_MODIFYING_CODE*/ },
220 { "LiveSupport" , 1 << 19 /*S_ATTR_LIVE_SUPPORT */ },
221 { "NoDeadStrip" , 1 << 20 /*S_ATTR_NO_DEAD_STRIP */ },
222 { "StripStaticSyms" , 1 << 21 /*S_ATTR_STRIP_STATIC_SYMS */ },
223 { "NoTOC" , 1 << 22 /*S_ATTR_NO_TOC */ },
224 { "PureInstructions" , 1 << 23 /*S_ATTR_PURE_INSTRUCTIONS */ },
227 static const EnumEntry<unsigned> MachOSymbolRefTypes[] = {
228 { "UndefinedNonLazy", 0 },
229 { "ReferenceFlagUndefinedLazy", 1 },
230 { "ReferenceFlagDefined", 2 },
231 { "ReferenceFlagPrivateDefined", 3 },
232 { "ReferenceFlagPrivateUndefinedNonLazy", 4 },
233 { "ReferenceFlagPrivateUndefinedLazy", 5 }
236 static const EnumEntry<unsigned> MachOSymbolFlags[] = {
237 { "ReferencedDynamically", 0x10 },
238 { "NoDeadStrip", 0x20 },
243 static const EnumEntry<unsigned> MachOSymbolTypes[] = {
247 { "PreboundUndef", 0xC },
252 struct MachOSection {
254 ArrayRef<char> SegmentName;
259 uint32_t RelocationTableOffset;
260 uint32_t NumRelocationTableEntries;
267 struct MachOSegment {
282 uint32_t StringIndex;
284 uint8_t SectionIndex;
290 static std::string getMask(uint32_t prot)
292 // TODO (davide): This always assumes prot is valid.
293 // Catch mistakes and report if needed.
296 Prot += (prot & MachO::VM_PROT_READ) ? "r" : "-";
297 Prot += (prot & MachO::VM_PROT_WRITE) ? "w" : "-";
298 Prot += (prot & MachO::VM_PROT_EXECUTE) ? "x" : "-";
302 static void getSection(const MachOObjectFile *Obj,
304 MachOSection &Section) {
305 if (!Obj->is64Bit()) {
306 MachO::section Sect = Obj->getSection(Sec);
307 Section.Address = Sect.addr;
308 Section.Size = Sect.size;
309 Section.Offset = Sect.offset;
310 Section.Alignment = Sect.align;
311 Section.RelocationTableOffset = Sect.reloff;
312 Section.NumRelocationTableEntries = Sect.nreloc;
313 Section.Flags = Sect.flags;
314 Section.Reserved1 = Sect.reserved1;
315 Section.Reserved2 = Sect.reserved2;
318 MachO::section_64 Sect = Obj->getSection64(Sec);
319 Section.Address = Sect.addr;
320 Section.Size = Sect.size;
321 Section.Offset = Sect.offset;
322 Section.Alignment = Sect.align;
323 Section.RelocationTableOffset = Sect.reloff;
324 Section.NumRelocationTableEntries = Sect.nreloc;
325 Section.Flags = Sect.flags;
326 Section.Reserved1 = Sect.reserved1;
327 Section.Reserved2 = Sect.reserved2;
328 Section.Reserved3 = Sect.reserved3;
331 static void getSegment(const MachOObjectFile *Obj,
332 const MachOObjectFile::LoadCommandInfo &L,
333 MachOSegment &Segment) {
334 if (!Obj->is64Bit()) {
335 MachO::segment_command SC = Obj->getSegmentLoadCommand(L);
336 Segment.CmdName = "LC_SEGMENT";
337 Segment.SegName = SC.segname;
338 Segment.cmdsize = SC.cmdsize;
339 Segment.vmaddr = SC.vmaddr;
340 Segment.vmsize = SC.vmsize;
341 Segment.fileoff = SC.fileoff;
342 Segment.filesize = SC.filesize;
343 Segment.maxprot = SC.maxprot;
344 Segment.initprot = SC.initprot;
345 Segment.nsects = SC.nsects;
346 Segment.flags = SC.flags;
349 MachO::segment_command_64 SC = Obj->getSegment64LoadCommand(L);
350 Segment.CmdName = "LC_SEGMENT_64";
351 Segment.SegName = SC.segname;
352 Segment.cmdsize = SC.cmdsize;
353 Segment.vmaddr = SC.vmaddr;
354 Segment.vmsize = SC.vmsize;
355 Segment.fileoff = SC.fileoff;
356 Segment.filesize = SC.filesize;
357 Segment.maxprot = SC.maxprot;
358 Segment.initprot = SC.initprot;
359 Segment.nsects = SC.nsects;
360 Segment.flags = SC.flags;
363 static void getSymbol(const MachOObjectFile *Obj,
365 MachOSymbol &Symbol) {
366 if (!Obj->is64Bit()) {
367 MachO::nlist Entry = Obj->getSymbolTableEntry(DRI);
368 Symbol.StringIndex = Entry.n_strx;
369 Symbol.Type = Entry.n_type;
370 Symbol.SectionIndex = Entry.n_sect;
371 Symbol.Flags = Entry.n_desc;
372 Symbol.Value = Entry.n_value;
375 MachO::nlist_64 Entry = Obj->getSymbol64TableEntry(DRI);
376 Symbol.StringIndex = Entry.n_strx;
377 Symbol.Type = Entry.n_type;
378 Symbol.SectionIndex = Entry.n_sect;
379 Symbol.Flags = Entry.n_desc;
380 Symbol.Value = Entry.n_value;
383 void MachODumper::printFileHeaders() {
384 DictScope H(W, "MachHeader");
385 if (!Obj->is64Bit()) {
386 printFileHeaders(Obj->getHeader());
388 printFileHeaders(Obj->getHeader64());
389 W.printHex("Reserved", Obj->getHeader64().reserved);
393 template<class MachHeader>
394 void MachODumper::printFileHeaders(const MachHeader &Header) {
395 W.printEnum("Magic", Header.magic, makeArrayRef(MachOMagics));
396 W.printEnum("CpuType", Header.cputype, makeArrayRef(MachOHeaderCpuTypes));
397 uint32_t subtype = Header.cpusubtype & ~MachO::CPU_SUBTYPE_MASK;
398 switch (Header.cputype) {
399 case MachO::CPU_TYPE_X86:
400 W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesX86));
402 case MachO::CPU_TYPE_X86_64:
403 W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesX64));
405 case MachO::CPU_TYPE_ARM:
406 W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesARM));
408 case MachO::CPU_TYPE_POWERPC:
409 W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesPPC));
411 case MachO::CPU_TYPE_SPARC:
412 W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesSPARC));
414 case MachO::CPU_TYPE_ARM64:
415 W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesARM64));
417 case MachO::CPU_TYPE_POWERPC64:
419 W.printHex("CpuSubtype", subtype);
421 W.printEnum("FileType", Header.filetype, makeArrayRef(MachOHeaderFileTypes));
422 W.printNumber("NumOfLoadCommands", Header.ncmds);
423 W.printNumber("SizeOfLoadCommands", Header.sizeofcmds);
424 W.printFlags("Flags", Header.flags, makeArrayRef(MachOHeaderFlags));
427 void MachODumper::printSections() {
428 return printSections(Obj);
431 void MachODumper::printSections(const MachOObjectFile *Obj) {
432 ListScope Group(W, "Sections");
434 int SectionIndex = -1;
435 for (const SectionRef &Section : Obj->sections()) {
438 MachOSection MOSection;
439 getSection(Obj, Section.getRawDataRefImpl(), MOSection);
440 DataRefImpl DR = Section.getRawDataRefImpl();
443 error(Section.getName(Name));
445 ArrayRef<char> RawName = Obj->getSectionRawName(DR);
446 StringRef SegmentName = Obj->getSectionFinalSegmentName(DR);
447 ArrayRef<char> RawSegmentName = Obj->getSectionRawFinalSegmentName(DR);
449 DictScope SectionD(W, "Section");
450 W.printNumber("Index", SectionIndex);
451 W.printBinary("Name", Name, RawName);
452 W.printBinary("Segment", SegmentName, RawSegmentName);
453 W.printHex("Address", MOSection.Address);
454 W.printHex("Size", MOSection.Size);
455 W.printNumber("Offset", MOSection.Offset);
456 W.printNumber("Alignment", MOSection.Alignment);
457 W.printHex("RelocationOffset", MOSection.RelocationTableOffset);
458 W.printNumber("RelocationCount", MOSection.NumRelocationTableEntries);
459 W.printEnum("Type", MOSection.Flags & 0xFF,
460 makeArrayRef(MachOSectionAttributes));
461 W.printFlags("Attributes", MOSection.Flags >> 8,
462 makeArrayRef(MachOSectionAttributes));
463 W.printHex("Reserved1", MOSection.Reserved1);
464 W.printHex("Reserved2", MOSection.Reserved2);
466 W.printHex("Reserved3", MOSection.Reserved3);
468 if (opts::SectionRelocations) {
469 ListScope D(W, "Relocations");
470 for (const RelocationRef &Reloc : Section.relocations())
471 printRelocation(Reloc);
474 if (opts::SectionSymbols) {
475 ListScope D(W, "Symbols");
476 for (const SymbolRef &Symbol : Obj->symbols()) {
477 if (!Section.containsSymbol(Symbol))
484 if (opts::SectionData) {
485 bool IsBSS = Section.isBSS();
488 error(Section.getContents(Data));
490 W.printBinaryBlock("SectionData", Data);
496 void MachODumper::printRelocations() {
497 ListScope D(W, "Relocations");
500 for (const SectionRef &Section : Obj->sections()) {
502 error(Section.getName(Name));
504 bool PrintedGroup = false;
505 for (const RelocationRef &Reloc : Section.relocations()) {
507 W.startLine() << "Section " << Name << " {\n";
512 printRelocation(Reloc);
517 W.startLine() << "}\n";
522 void MachODumper::printRelocation(const RelocationRef &Reloc) {
523 return printRelocation(Obj, Reloc);
526 void MachODumper::printRelocation(const MachOObjectFile *Obj,
527 const RelocationRef &Reloc) {
528 uint64_t Offset = Reloc.getOffset();
529 SmallString<32> RelocName;
530 Reloc.getTypeName(RelocName);
532 DataRefImpl DR = Reloc.getRawDataRefImpl();
533 MachO::any_relocation_info RE = Obj->getRelocation(DR);
534 bool IsScattered = Obj->isRelocationScattered(RE);
535 bool IsExtern = !IsScattered && Obj->getPlainRelocationExternal(RE);
537 StringRef TargetName;
539 symbol_iterator Symbol = Reloc.getSymbol();
540 if (Symbol != Obj->symbol_end()) {
541 ErrorOr<StringRef> TargetNameOrErr = Symbol->getName();
542 error(TargetNameOrErr.getError());
543 TargetName = *TargetNameOrErr;
545 } else if (!IsScattered) {
546 section_iterator SecI = Obj->getRelocationSection(DR);
547 if (SecI != Obj->section_end()) {
548 error(SecI->getName(TargetName));
551 if (TargetName.empty())
554 if (opts::ExpandRelocs) {
555 DictScope Group(W, "Relocation");
556 W.printHex("Offset", Offset);
557 W.printNumber("PCRel", Obj->getAnyRelocationPCRel(RE));
558 W.printNumber("Length", Obj->getAnyRelocationLength(RE));
559 W.printNumber("Type", RelocName, Obj->getAnyRelocationType(RE));
561 W.printHex("Value", Obj->getScatteredRelocationValue(RE));
563 const char *Kind = IsExtern ? "Symbol" : "Section";
564 W.printNumber(Kind, TargetName, Obj->getPlainRelocationSymbolNum(RE));
567 SmallString<32> SymbolNameOrOffset("0x");
569 // Scattered relocations don't really have an associated symbol for some
570 // reason, even if one exists in the symtab at the correct address.
571 SymbolNameOrOffset += utohexstr(Obj->getScatteredRelocationValue(RE));
573 SymbolNameOrOffset = TargetName;
576 raw_ostream& OS = W.startLine();
578 << " " << Obj->getAnyRelocationPCRel(RE)
579 << " " << Obj->getAnyRelocationLength(RE);
583 OS << " " << Obj->getPlainRelocationExternal(RE);
584 OS << " " << RelocName
585 << " " << IsScattered
586 << " " << SymbolNameOrOffset
591 void MachODumper::printSymbols() {
592 ListScope Group(W, "Symbols");
594 for (const SymbolRef &Symbol : Obj->symbols()) {
599 void MachODumper::printDynamicSymbols() {
600 ListScope Group(W, "DynamicSymbols");
603 void MachODumper::printSymbol(const SymbolRef &Symbol) {
604 StringRef SymbolName;
605 if (ErrorOr<StringRef> SymbolNameOrErr = Symbol.getName())
606 SymbolName = *SymbolNameOrErr;
608 MachOSymbol MOSymbol;
609 getSymbol(Obj, Symbol.getRawDataRefImpl(), MOSymbol);
611 StringRef SectionName = "";
612 ErrorOr<section_iterator> SecIOrErr = Symbol.getSection();
613 error(SecIOrErr.getError());
614 section_iterator SecI = *SecIOrErr;
615 if (SecI != Obj->section_end())
616 error(SecI->getName(SectionName));
618 DictScope D(W, "Symbol");
619 W.printNumber("Name", SymbolName, MOSymbol.StringIndex);
620 if (MOSymbol.Type & MachO::N_STAB) {
621 W.printHex("Type", "SymDebugTable", MOSymbol.Type);
623 if (MOSymbol.Type & MachO::N_PEXT)
624 W.startLine() << "PrivateExtern\n";
625 if (MOSymbol.Type & MachO::N_EXT)
626 W.startLine() << "Extern\n";
627 W.printEnum("Type", uint8_t(MOSymbol.Type & MachO::N_TYPE),
628 makeArrayRef(MachOSymbolTypes));
630 W.printHex("Section", SectionName, MOSymbol.SectionIndex);
631 W.printEnum("RefType", static_cast<uint16_t>(MOSymbol.Flags & 0xF),
632 makeArrayRef(MachOSymbolRefTypes));
633 W.printFlags("Flags", static_cast<uint16_t>(MOSymbol.Flags & ~0xF),
634 makeArrayRef(MachOSymbolFlags));
635 W.printHex("Value", MOSymbol.Value);
638 void MachODumper::printUnwindInfo() {
639 W.startLine() << "UnwindInfo not implemented.\n";
642 void MachODumper::printStackMap() const {
643 object::SectionRef StackMapSection;
644 for (auto Sec : Obj->sections()) {
647 if (Name == "__llvm_stackmaps") {
648 StackMapSection = Sec;
653 if (StackMapSection == object::SectionRef())
656 StringRef StackMapContents;
657 StackMapSection.getContents(StackMapContents);
658 ArrayRef<uint8_t> StackMapContentsArray(
659 reinterpret_cast<const uint8_t*>(StackMapContents.data()),
660 StackMapContents.size());
662 if (Obj->isLittleEndian())
665 StackMapV1Parser<support::little>(StackMapContentsArray));
667 prettyPrintStackMap(llvm::outs(),
668 StackMapV1Parser<support::big>(StackMapContentsArray));
671 void MachODumper::printMachODataInCode() {
672 for (const auto &Load : Obj->load_commands()) {
673 if (Load.C.cmd == MachO::LC_DATA_IN_CODE) {
674 MachO::linkedit_data_command LLC = Obj->getLinkeditDataLoadCommand(Load);
675 DictScope Group(W, "DataInCode");
676 W.printNumber("Data offset", LLC.dataoff);
677 W.printNumber("Data size", LLC.datasize);
678 ListScope D(W, "Data entries");
679 unsigned NumRegions = LLC.datasize / sizeof(MachO::data_in_code_entry);
680 for (unsigned i = 0; i < NumRegions; ++i) {
681 MachO::data_in_code_entry DICE = Obj->getDataInCodeTableEntry(
683 DictScope Group(W, "Entry");
684 W.printNumber("Index", i);
685 W.printNumber("Offset", DICE.offset);
686 W.printNumber("Length", DICE.length);
687 W.printNumber("Kind", DICE.kind);
693 void MachODumper::printMachOVersionMin() {
694 for (const auto &Load : Obj->load_commands()) {
695 if (Load.C.cmd == MachO::LC_VERSION_MIN_MACOSX ||
696 Load.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS) {
697 MachO::version_min_command VMC = Obj->getVersionMinLoadCommand(Load);
698 DictScope Group(W, "MinVersion");
700 if (Load.C.cmd == MachO::LC_VERSION_MIN_MACOSX)
701 Cmd = "LC_VERSION_MIN_MACOSX";
703 Cmd = "LC_VERSION_MIN_IPHONEOS";
704 W.printString("Cmd", Cmd);
705 W.printNumber("Size", VMC.cmdsize);
706 SmallString<32> Version;
707 Version = utostr(MachOObjectFile::getVersionMinMajor(VMC, false)) + "." +
708 utostr(MachOObjectFile::getVersionMinMinor(VMC, false));
709 uint32_t Update = MachOObjectFile::getVersionMinUpdate(VMC, false);
711 Version += "." + utostr(MachOObjectFile::getVersionMinUpdate(VMC,
713 W.printString("Version", Version);
718 SDK = utostr(MachOObjectFile::getVersionMinMajor(VMC, true)) + "." +
719 utostr(MachOObjectFile::getVersionMinMinor(VMC, true));
720 uint32_t Update = MachOObjectFile::getVersionMinUpdate(VMC, true);
722 SDK += "." + utostr(MachOObjectFile::getVersionMinUpdate(VMC,
725 W.printString("SDK", SDK);
730 void MachODumper::printMachODysymtab() {
731 for (const auto &Load : Obj->load_commands()) {
732 if (Load.C.cmd == MachO::LC_DYSYMTAB) {
733 MachO::dysymtab_command DLC = Obj->getDysymtabLoadCommand();
734 DictScope Group(W, "Dysymtab");
735 W.printNumber("ilocalsym", DLC.ilocalsym);
736 W.printNumber("nlocalsym", DLC.nlocalsym);
737 W.printNumber("iextdefsym", DLC.iextdefsym);
738 W.printNumber("nextdefsym", DLC.nextdefsym);
739 W.printNumber("iundefsym", DLC.iundefsym);
740 W.printNumber("nundefsym", DLC.nundefsym);
741 W.printNumber("tocoff", DLC.tocoff);
742 W.printNumber("ntoc", DLC.ntoc);
743 W.printNumber("modtaboff", DLC.modtaboff);
744 W.printNumber("nmodtab", DLC.nmodtab);
745 W.printNumber("extrefsymoff", DLC.extrefsymoff);
746 W.printNumber("nextrefsyms", DLC.nextrefsyms);
747 W.printNumber("indirectsymoff", DLC.indirectsymoff);
748 W.printNumber("nindirectsyms", DLC.nindirectsyms);
749 W.printNumber("extreloff", DLC.extreloff);
750 W.printNumber("nextrel", DLC.nextrel);
751 W.printNumber("locreloff", DLC.locreloff);
752 W.printNumber("nlocrel", DLC.nlocrel);
757 void MachODumper::printMachOSegment() {
758 for (const auto &Load : Obj->load_commands()) {
759 if (Load.C.cmd == MachO::LC_SEGMENT || Load.C.cmd == MachO::LC_SEGMENT_64) {
760 MachOSegment MOSegment;
761 getSegment(Obj, Load, MOSegment);
762 DictScope Group(W, "Segment");
763 W.printString("Cmd", MOSegment.CmdName);
764 W.printString("Name", MOSegment.SegName);
765 W.printNumber("Size", MOSegment.cmdsize);
766 W.printHex("vmaddr", MOSegment.vmaddr);
767 W.printHex("vmsize", MOSegment.vmsize);
768 W.printNumber("fileoff", MOSegment.fileoff);
769 W.printNumber("filesize", MOSegment.fileoff);
770 W.printString("maxprot", getMask(MOSegment.maxprot));
771 W.printString("initprot", getMask(MOSegment.initprot));
772 W.printNumber("nsects", MOSegment.nsects);
773 W.printHex("flags", MOSegment.flags);