File: | tools/llvm-objdump/MachODump.cpp |
Warning: | line 9443, column 9 Value stored to 'NeedsComma' is never read |
1 | //===-- MachODump.cpp - Object file dumping utility for llvm --------------===// |
2 | // |
3 | // The LLVM Compiler Infrastructure |
4 | // |
5 | // This file is distributed under the University of Illinois Open Source |
6 | // License. See LICENSE.TXT for details. |
7 | // |
8 | //===----------------------------------------------------------------------===// |
9 | // |
10 | // This file implements the MachO-specific dumper for llvm-objdump. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
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/BinaryFormat/MachO.h" |
20 | #include "llvm/Config/config.h" |
21 | #include "llvm/DebugInfo/DIContext.h" |
22 | #include "llvm/DebugInfo/DWARF/DWARFContext.h" |
23 | #include "llvm/Demangle/Demangle.h" |
24 | #include "llvm/MC/MCAsmInfo.h" |
25 | #include "llvm/MC/MCContext.h" |
26 | #include "llvm/MC/MCDisassembler/MCDisassembler.h" |
27 | #include "llvm/MC/MCInst.h" |
28 | #include "llvm/MC/MCInstPrinter.h" |
29 | #include "llvm/MC/MCInstrDesc.h" |
30 | #include "llvm/MC/MCInstrInfo.h" |
31 | #include "llvm/MC/MCRegisterInfo.h" |
32 | #include "llvm/MC/MCSubtargetInfo.h" |
33 | #include "llvm/Object/MachO.h" |
34 | #include "llvm/Object/MachOUniversal.h" |
35 | #include "llvm/Support/Casting.h" |
36 | #include "llvm/Support/CommandLine.h" |
37 | #include "llvm/Support/Debug.h" |
38 | #include "llvm/Support/Endian.h" |
39 | #include "llvm/Support/Format.h" |
40 | #include "llvm/Support/FormattedStream.h" |
41 | #include "llvm/Support/GraphWriter.h" |
42 | #include "llvm/Support/LEB128.h" |
43 | #include "llvm/Support/MemoryBuffer.h" |
44 | #include "llvm/Support/TargetRegistry.h" |
45 | #include "llvm/Support/TargetSelect.h" |
46 | #include "llvm/Support/ToolOutputFile.h" |
47 | #include "llvm/Support/raw_ostream.h" |
48 | #include <algorithm> |
49 | #include <cstring> |
50 | #include <system_error> |
51 | |
52 | #ifdef HAVE_LIBXAR |
53 | extern "C" { |
54 | #include <xar/xar.h> |
55 | } |
56 | #endif |
57 | |
58 | using namespace llvm; |
59 | using namespace object; |
60 | |
61 | static cl::opt<bool> |
62 | UseDbg("g", |
63 | cl::desc("Print line information from debug info if available")); |
64 | |
65 | static cl::opt<std::string> DSYMFile("dsym", |
66 | cl::desc("Use .dSYM file for debug info")); |
67 | |
68 | static cl::opt<bool> FullLeadingAddr("full-leading-addr", |
69 | cl::desc("Print full leading address")); |
70 | |
71 | static cl::opt<bool> NoLeadingHeaders("no-leading-headers", |
72 | cl::desc("Print no leading headers")); |
73 | |
74 | cl::opt<bool> llvm::UniversalHeaders("universal-headers", |
75 | cl::desc("Print Mach-O universal headers " |
76 | "(requires -macho)")); |
77 | |
78 | cl::opt<bool> |
79 | llvm::ArchiveHeaders("archive-headers", |
80 | cl::desc("Print archive headers for Mach-O archives " |
81 | "(requires -macho)")); |
82 | |
83 | cl::opt<bool> |
84 | ArchiveMemberOffsets("archive-member-offsets", |
85 | cl::desc("Print the offset to each archive member for " |
86 | "Mach-O archives (requires -macho and " |
87 | "-archive-headers)")); |
88 | |
89 | cl::opt<bool> |
90 | llvm::IndirectSymbols("indirect-symbols", |
91 | cl::desc("Print indirect symbol table for Mach-O " |
92 | "objects (requires -macho)")); |
93 | |
94 | cl::opt<bool> |
95 | llvm::DataInCode("data-in-code", |
96 | cl::desc("Print the data in code table for Mach-O objects " |
97 | "(requires -macho)")); |
98 | |
99 | cl::opt<bool> |
100 | llvm::LinkOptHints("link-opt-hints", |
101 | cl::desc("Print the linker optimization hints for " |
102 | "Mach-O objects (requires -macho)")); |
103 | |
104 | cl::opt<bool> |
105 | llvm::InfoPlist("info-plist", |
106 | cl::desc("Print the info plist section as strings for " |
107 | "Mach-O objects (requires -macho)")); |
108 | |
109 | cl::opt<bool> |
110 | llvm::DylibsUsed("dylibs-used", |
111 | cl::desc("Print the shared libraries used for linked " |
112 | "Mach-O files (requires -macho)")); |
113 | |
114 | cl::opt<bool> |
115 | llvm::DylibId("dylib-id", |
116 | cl::desc("Print the shared library's id for the dylib Mach-O " |
117 | "file (requires -macho)")); |
118 | |
119 | cl::opt<bool> |
120 | llvm::NonVerbose("non-verbose", |
121 | cl::desc("Print the info for Mach-O objects in " |
122 | "non-verbose or numeric form (requires -macho)")); |
123 | |
124 | cl::opt<bool> |
125 | llvm::ObjcMetaData("objc-meta-data", |
126 | cl::desc("Print the Objective-C runtime meta data for " |
127 | "Mach-O files (requires -macho)")); |
128 | |
129 | cl::opt<std::string> llvm::DisSymName( |
130 | "dis-symname", |
131 | cl::desc("disassemble just this symbol's instructions (requires -macho)")); |
132 | |
133 | static cl::opt<bool> NoSymbolicOperands( |
134 | "no-symbolic-operands", |
135 | cl::desc("do not symbolic operands when disassembling (requires -macho)")); |
136 | |
137 | static cl::list<std::string> |
138 | ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"), |
139 | cl::ZeroOrMore); |
140 | |
141 | bool ArchAll = false; |
142 | |
143 | static std::string ThumbTripleName; |
144 | |
145 | static const Target *GetTarget(const MachOObjectFile *MachOObj, |
146 | const char **McpuDefault, |
147 | const Target **ThumbTarget) { |
148 | // Figure out the target triple. |
149 | llvm::Triple TT(TripleName); |
150 | if (TripleName.empty()) { |
151 | TT = MachOObj->getArchTriple(McpuDefault); |
152 | TripleName = TT.str(); |
153 | } |
154 | |
155 | if (TT.getArch() == Triple::arm) { |
156 | // We've inferred a 32-bit ARM target from the object file. All MachO CPUs |
157 | // that support ARM are also capable of Thumb mode. |
158 | llvm::Triple ThumbTriple = TT; |
159 | std::string ThumbName = (Twine("thumb") + TT.getArchName().substr(3)).str(); |
160 | ThumbTriple.setArchName(ThumbName); |
161 | ThumbTripleName = ThumbTriple.str(); |
162 | } |
163 | |
164 | // Get the target specific parser. |
165 | std::string Error; |
166 | const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); |
167 | if (TheTarget && ThumbTripleName.empty()) |
168 | return TheTarget; |
169 | |
170 | *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error); |
171 | if (*ThumbTarget) |
172 | return TheTarget; |
173 | |
174 | errs() << "llvm-objdump: error: unable to get target for '"; |
175 | if (!TheTarget) |
176 | errs() << TripleName; |
177 | else |
178 | errs() << ThumbTripleName; |
179 | errs() << "', see --version and --triple.\n"; |
180 | return nullptr; |
181 | } |
182 | |
183 | struct SymbolSorter { |
184 | bool operator()(const SymbolRef &A, const SymbolRef &B) { |
185 | Expected<SymbolRef::Type> ATypeOrErr = A.getType(); |
186 | if (!ATypeOrErr) |
187 | report_error(A.getObject()->getFileName(), ATypeOrErr.takeError()); |
188 | SymbolRef::Type AType = *ATypeOrErr; |
189 | Expected<SymbolRef::Type> BTypeOrErr = B.getType(); |
190 | if (!BTypeOrErr) |
191 | report_error(B.getObject()->getFileName(), BTypeOrErr.takeError()); |
192 | SymbolRef::Type BType = *BTypeOrErr; |
193 | uint64_t AAddr = (AType != SymbolRef::ST_Function) ? 0 : A.getValue(); |
194 | uint64_t BAddr = (BType != SymbolRef::ST_Function) ? 0 : B.getValue(); |
195 | return AAddr < BAddr; |
196 | } |
197 | }; |
198 | |
199 | // Types for the storted data in code table that is built before disassembly |
200 | // and the predicate function to sort them. |
201 | typedef std::pair<uint64_t, DiceRef> DiceTableEntry; |
202 | typedef std::vector<DiceTableEntry> DiceTable; |
203 | typedef DiceTable::iterator dice_table_iterator; |
204 | |
205 | // This is used to search for a data in code table entry for the PC being |
206 | // disassembled. The j parameter has the PC in j.first. A single data in code |
207 | // table entry can cover many bytes for each of its Kind's. So if the offset, |
208 | // aka the i.first value, of the data in code table entry plus its Length |
209 | // covers the PC being searched for this will return true. If not it will |
210 | // return false. |
211 | static bool compareDiceTableEntries(const DiceTableEntry &i, |
212 | const DiceTableEntry &j) { |
213 | uint16_t Length; |
214 | i.second.getLength(Length); |
215 | |
216 | return j.first >= i.first && j.first < i.first + Length; |
217 | } |
218 | |
219 | static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length, |
220 | unsigned short Kind) { |
221 | uint32_t Value, Size = 1; |
222 | |
223 | switch (Kind) { |
224 | default: |
225 | case MachO::DICE_KIND_DATA: |
226 | if (Length >= 4) { |
227 | if (!NoShowRawInsn) |
228 | dumpBytes(makeArrayRef(bytes, 4), outs()); |
229 | Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; |
230 | outs() << "\t.long " << Value; |
231 | Size = 4; |
232 | } else if (Length >= 2) { |
233 | if (!NoShowRawInsn) |
234 | dumpBytes(makeArrayRef(bytes, 2), outs()); |
235 | Value = bytes[1] << 8 | bytes[0]; |
236 | outs() << "\t.short " << Value; |
237 | Size = 2; |
238 | } else { |
239 | if (!NoShowRawInsn) |
240 | dumpBytes(makeArrayRef(bytes, 2), outs()); |
241 | Value = bytes[0]; |
242 | outs() << "\t.byte " << Value; |
243 | Size = 1; |
244 | } |
245 | if (Kind == MachO::DICE_KIND_DATA) |
246 | outs() << "\t@ KIND_DATA\n"; |
247 | else |
248 | outs() << "\t@ data in code kind = " << Kind << "\n"; |
249 | break; |
250 | case MachO::DICE_KIND_JUMP_TABLE8: |
251 | if (!NoShowRawInsn) |
252 | dumpBytes(makeArrayRef(bytes, 1), outs()); |
253 | Value = bytes[0]; |
254 | outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n"; |
255 | Size = 1; |
256 | break; |
257 | case MachO::DICE_KIND_JUMP_TABLE16: |
258 | if (!NoShowRawInsn) |
259 | dumpBytes(makeArrayRef(bytes, 2), outs()); |
260 | Value = bytes[1] << 8 | bytes[0]; |
261 | outs() << "\t.short " << format("%5u", Value & 0xffff) |
262 | << "\t@ KIND_JUMP_TABLE16\n"; |
263 | Size = 2; |
264 | break; |
265 | case MachO::DICE_KIND_JUMP_TABLE32: |
266 | case MachO::DICE_KIND_ABS_JUMP_TABLE32: |
267 | if (!NoShowRawInsn) |
268 | dumpBytes(makeArrayRef(bytes, 4), outs()); |
269 | Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; |
270 | outs() << "\t.long " << Value; |
271 | if (Kind == MachO::DICE_KIND_JUMP_TABLE32) |
272 | outs() << "\t@ KIND_JUMP_TABLE32\n"; |
273 | else |
274 | outs() << "\t@ KIND_ABS_JUMP_TABLE32\n"; |
275 | Size = 4; |
276 | break; |
277 | } |
278 | return Size; |
279 | } |
280 | |
281 | static void getSectionsAndSymbols(MachOObjectFile *MachOObj, |
282 | std::vector<SectionRef> &Sections, |
283 | std::vector<SymbolRef> &Symbols, |
284 | SmallVectorImpl<uint64_t> &FoundFns, |
285 | uint64_t &BaseSegmentAddress) { |
286 | for (const SymbolRef &Symbol : MachOObj->symbols()) { |
287 | Expected<StringRef> SymName = Symbol.getName(); |
288 | if (!SymName) |
289 | report_error(MachOObj->getFileName(), SymName.takeError()); |
290 | if (!SymName->startswith("ltmp")) |
291 | Symbols.push_back(Symbol); |
292 | } |
293 | |
294 | for (const SectionRef &Section : MachOObj->sections()) { |
295 | StringRef SectName; |
296 | Section.getName(SectName); |
297 | Sections.push_back(Section); |
298 | } |
299 | |
300 | bool BaseSegmentAddressSet = false; |
301 | for (const auto &Command : MachOObj->load_commands()) { |
302 | if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) { |
303 | // We found a function starts segment, parse the addresses for later |
304 | // consumption. |
305 | MachO::linkedit_data_command LLC = |
306 | MachOObj->getLinkeditDataLoadCommand(Command); |
307 | |
308 | MachOObj->ReadULEB128s(LLC.dataoff, FoundFns); |
309 | } else if (Command.C.cmd == MachO::LC_SEGMENT) { |
310 | MachO::segment_command SLC = MachOObj->getSegmentLoadCommand(Command); |
311 | StringRef SegName = SLC.segname; |
312 | if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") { |
313 | BaseSegmentAddressSet = true; |
314 | BaseSegmentAddress = SLC.vmaddr; |
315 | } |
316 | } |
317 | } |
318 | } |
319 | |
320 | static void PrintIndirectSymbolTable(MachOObjectFile *O, bool verbose, |
321 | uint32_t n, uint32_t count, |
322 | uint32_t stride, uint64_t addr) { |
323 | MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
324 | uint32_t nindirectsyms = Dysymtab.nindirectsyms; |
325 | if (n > nindirectsyms) |
326 | outs() << " (entries start past the end of the indirect symbol " |
327 | "table) (reserved1 field greater than the table size)"; |
328 | else if (n + count > nindirectsyms) |
329 | outs() << " (entries extends past the end of the indirect symbol " |
330 | "table)"; |
331 | outs() << "\n"; |
332 | uint32_t cputype = O->getHeader().cputype; |
333 | if (cputype & MachO::CPU_ARCH_ABI64) |
334 | outs() << "address index"; |
335 | else |
336 | outs() << "address index"; |
337 | if (verbose) |
338 | outs() << " name\n"; |
339 | else |
340 | outs() << "\n"; |
341 | for (uint32_t j = 0; j < count && n + j < nindirectsyms; j++) { |
342 | if (cputype & MachO::CPU_ARCH_ABI64) |
343 | outs() << format("0x%016" PRIx64"l" "x", addr + j * stride) << " "; |
344 | else |
345 | outs() << format("0x%08" PRIx32"x", (uint32_t)addr + j * stride) << " "; |
346 | MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
347 | uint32_t indirect_symbol = O->getIndirectSymbolTableEntry(Dysymtab, n + j); |
348 | if (indirect_symbol == MachO::INDIRECT_SYMBOL_LOCAL) { |
349 | outs() << "LOCAL\n"; |
350 | continue; |
351 | } |
352 | if (indirect_symbol == |
353 | (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) { |
354 | outs() << "LOCAL ABSOLUTE\n"; |
355 | continue; |
356 | } |
357 | if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) { |
358 | outs() << "ABSOLUTE\n"; |
359 | continue; |
360 | } |
361 | outs() << format("%5u ", indirect_symbol); |
362 | if (verbose) { |
363 | MachO::symtab_command Symtab = O->getSymtabLoadCommand(); |
364 | if (indirect_symbol < Symtab.nsyms) { |
365 | symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol); |
366 | SymbolRef Symbol = *Sym; |
367 | Expected<StringRef> SymName = Symbol.getName(); |
368 | if (!SymName) |
369 | report_error(O->getFileName(), SymName.takeError()); |
370 | outs() << *SymName; |
371 | } else { |
372 | outs() << "?"; |
373 | } |
374 | } |
375 | outs() << "\n"; |
376 | } |
377 | } |
378 | |
379 | static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) { |
380 | for (const auto &Load : O->load_commands()) { |
381 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
382 | MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); |
383 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
384 | MachO::section_64 Sec = O->getSection64(Load, J); |
385 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
386 | if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
387 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
388 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
389 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
390 | section_type == MachO::S_SYMBOL_STUBS) { |
391 | uint32_t stride; |
392 | if (section_type == MachO::S_SYMBOL_STUBS) |
393 | stride = Sec.reserved2; |
394 | else |
395 | stride = 8; |
396 | if (stride == 0) { |
397 | outs() << "Can't print indirect symbols for (" << Sec.segname << "," |
398 | << Sec.sectname << ") " |
399 | << "(size of stubs in reserved2 field is zero)\n"; |
400 | continue; |
401 | } |
402 | uint32_t count = Sec.size / stride; |
403 | outs() << "Indirect symbols for (" << Sec.segname << "," |
404 | << Sec.sectname << ") " << count << " entries"; |
405 | uint32_t n = Sec.reserved1; |
406 | PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); |
407 | } |
408 | } |
409 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
410 | MachO::segment_command Seg = O->getSegmentLoadCommand(Load); |
411 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
412 | MachO::section Sec = O->getSection(Load, J); |
413 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
414 | if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
415 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
416 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
417 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
418 | section_type == MachO::S_SYMBOL_STUBS) { |
419 | uint32_t stride; |
420 | if (section_type == MachO::S_SYMBOL_STUBS) |
421 | stride = Sec.reserved2; |
422 | else |
423 | stride = 4; |
424 | if (stride == 0) { |
425 | outs() << "Can't print indirect symbols for (" << Sec.segname << "," |
426 | << Sec.sectname << ") " |
427 | << "(size of stubs in reserved2 field is zero)\n"; |
428 | continue; |
429 | } |
430 | uint32_t count = Sec.size / stride; |
431 | outs() << "Indirect symbols for (" << Sec.segname << "," |
432 | << Sec.sectname << ") " << count << " entries"; |
433 | uint32_t n = Sec.reserved1; |
434 | PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); |
435 | } |
436 | } |
437 | } |
438 | } |
439 | } |
440 | |
441 | static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) { |
442 | MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand(); |
443 | uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry); |
444 | outs() << "Data in code table (" << nentries << " entries)\n"; |
445 | outs() << "offset length kind\n"; |
446 | for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE; |
447 | ++DI) { |
448 | uint32_t Offset; |
449 | DI->getOffset(Offset); |
450 | outs() << format("0x%08" PRIx32"x", Offset) << " "; |
451 | uint16_t Length; |
452 | DI->getLength(Length); |
453 | outs() << format("%6u", Length) << " "; |
454 | uint16_t Kind; |
455 | DI->getKind(Kind); |
456 | if (verbose) { |
457 | switch (Kind) { |
458 | case MachO::DICE_KIND_DATA: |
459 | outs() << "DATA"; |
460 | break; |
461 | case MachO::DICE_KIND_JUMP_TABLE8: |
462 | outs() << "JUMP_TABLE8"; |
463 | break; |
464 | case MachO::DICE_KIND_JUMP_TABLE16: |
465 | outs() << "JUMP_TABLE16"; |
466 | break; |
467 | case MachO::DICE_KIND_JUMP_TABLE32: |
468 | outs() << "JUMP_TABLE32"; |
469 | break; |
470 | case MachO::DICE_KIND_ABS_JUMP_TABLE32: |
471 | outs() << "ABS_JUMP_TABLE32"; |
472 | break; |
473 | default: |
474 | outs() << format("0x%04" PRIx32"x", Kind); |
475 | break; |
476 | } |
477 | } else |
478 | outs() << format("0x%04" PRIx32"x", Kind); |
479 | outs() << "\n"; |
480 | } |
481 | } |
482 | |
483 | static void PrintLinkOptHints(MachOObjectFile *O) { |
484 | MachO::linkedit_data_command LohLC = O->getLinkOptHintsLoadCommand(); |
485 | const char *loh = O->getData().substr(LohLC.dataoff, 1).data(); |
486 | uint32_t nloh = LohLC.datasize; |
487 | outs() << "Linker optimiztion hints (" << nloh << " total bytes)\n"; |
488 | for (uint32_t i = 0; i < nloh;) { |
489 | unsigned n; |
490 | uint64_t identifier = decodeULEB128((const uint8_t *)(loh + i), &n); |
491 | i += n; |
492 | outs() << " identifier " << identifier << " "; |
493 | if (i >= nloh) |
494 | return; |
495 | switch (identifier) { |
496 | case 1: |
497 | outs() << "AdrpAdrp\n"; |
498 | break; |
499 | case 2: |
500 | outs() << "AdrpLdr\n"; |
501 | break; |
502 | case 3: |
503 | outs() << "AdrpAddLdr\n"; |
504 | break; |
505 | case 4: |
506 | outs() << "AdrpLdrGotLdr\n"; |
507 | break; |
508 | case 5: |
509 | outs() << "AdrpAddStr\n"; |
510 | break; |
511 | case 6: |
512 | outs() << "AdrpLdrGotStr\n"; |
513 | break; |
514 | case 7: |
515 | outs() << "AdrpAdd\n"; |
516 | break; |
517 | case 8: |
518 | outs() << "AdrpLdrGot\n"; |
519 | break; |
520 | default: |
521 | outs() << "Unknown identifier value\n"; |
522 | break; |
523 | } |
524 | uint64_t narguments = decodeULEB128((const uint8_t *)(loh + i), &n); |
525 | i += n; |
526 | outs() << " narguments " << narguments << "\n"; |
527 | if (i >= nloh) |
528 | return; |
529 | |
530 | for (uint32_t j = 0; j < narguments; j++) { |
531 | uint64_t value = decodeULEB128((const uint8_t *)(loh + i), &n); |
532 | i += n; |
533 | outs() << "\tvalue " << format("0x%" PRIx64"l" "x", value) << "\n"; |
534 | if (i >= nloh) |
535 | return; |
536 | } |
537 | } |
538 | } |
539 | |
540 | static void PrintDylibs(MachOObjectFile *O, bool JustId) { |
541 | unsigned Index = 0; |
542 | for (const auto &Load : O->load_commands()) { |
543 | if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) || |
544 | (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB || |
545 | Load.C.cmd == MachO::LC_LOAD_DYLIB || |
546 | Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || |
547 | Load.C.cmd == MachO::LC_REEXPORT_DYLIB || |
548 | Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || |
549 | Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) { |
550 | MachO::dylib_command dl = O->getDylibIDLoadCommand(Load); |
551 | if (dl.dylib.name < dl.cmdsize) { |
552 | const char *p = (const char *)(Load.Ptr) + dl.dylib.name; |
553 | if (JustId) |
554 | outs() << p << "\n"; |
555 | else { |
556 | outs() << "\t" << p; |
557 | outs() << " (compatibility version " |
558 | << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." |
559 | << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." |
560 | << (dl.dylib.compatibility_version & 0xff) << ","; |
561 | outs() << " current version " |
562 | << ((dl.dylib.current_version >> 16) & 0xffff) << "." |
563 | << ((dl.dylib.current_version >> 8) & 0xff) << "." |
564 | << (dl.dylib.current_version & 0xff) << ")\n"; |
565 | } |
566 | } else { |
567 | outs() << "\tBad offset (" << dl.dylib.name << ") for name of "; |
568 | if (Load.C.cmd == MachO::LC_ID_DYLIB) |
569 | outs() << "LC_ID_DYLIB "; |
570 | else if (Load.C.cmd == MachO::LC_LOAD_DYLIB) |
571 | outs() << "LC_LOAD_DYLIB "; |
572 | else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
573 | outs() << "LC_LOAD_WEAK_DYLIB "; |
574 | else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
575 | outs() << "LC_LAZY_LOAD_DYLIB "; |
576 | else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB) |
577 | outs() << "LC_REEXPORT_DYLIB "; |
578 | else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
579 | outs() << "LC_LOAD_UPWARD_DYLIB "; |
580 | else |
581 | outs() << "LC_??? "; |
582 | outs() << "command " << Index++ << "\n"; |
583 | } |
584 | } |
585 | } |
586 | } |
587 | |
588 | typedef DenseMap<uint64_t, StringRef> SymbolAddressMap; |
589 | |
590 | static void CreateSymbolAddressMap(MachOObjectFile *O, |
591 | SymbolAddressMap *AddrMap) { |
592 | // Create a map of symbol addresses to symbol names. |
593 | for (const SymbolRef &Symbol : O->symbols()) { |
594 | Expected<SymbolRef::Type> STOrErr = Symbol.getType(); |
595 | if (!STOrErr) |
596 | report_error(O->getFileName(), STOrErr.takeError()); |
597 | SymbolRef::Type ST = *STOrErr; |
598 | if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || |
599 | ST == SymbolRef::ST_Other) { |
600 | uint64_t Address = Symbol.getValue(); |
601 | Expected<StringRef> SymNameOrErr = Symbol.getName(); |
602 | if (!SymNameOrErr) |
603 | report_error(O->getFileName(), SymNameOrErr.takeError()); |
604 | StringRef SymName = *SymNameOrErr; |
605 | if (!SymName.startswith(".objc")) |
606 | (*AddrMap)[Address] = SymName; |
607 | } |
608 | } |
609 | } |
610 | |
611 | // GuessSymbolName is passed the address of what might be a symbol and a |
612 | // pointer to the SymbolAddressMap. It returns the name of a symbol |
613 | // with that address or nullptr if no symbol is found with that address. |
614 | static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) { |
615 | const char *SymbolName = nullptr; |
616 | // A DenseMap can't lookup up some values. |
617 | if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) { |
618 | StringRef name = AddrMap->lookup(value); |
619 | if (!name.empty()) |
620 | SymbolName = name.data(); |
621 | } |
622 | return SymbolName; |
623 | } |
624 | |
625 | static void DumpCstringChar(const char c) { |
626 | char p[2]; |
627 | p[0] = c; |
628 | p[1] = '\0'; |
629 | outs().write_escaped(p); |
630 | } |
631 | |
632 | static void DumpCstringSection(MachOObjectFile *O, const char *sect, |
633 | uint32_t sect_size, uint64_t sect_addr, |
634 | bool print_addresses) { |
635 | for (uint32_t i = 0; i < sect_size; i++) { |
636 | if (print_addresses) { |
637 | if (O->is64Bit()) |
638 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
639 | else |
640 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
641 | } |
642 | for (; i < sect_size && sect[i] != '\0'; i++) |
643 | DumpCstringChar(sect[i]); |
644 | if (i < sect_size && sect[i] == '\0') |
645 | outs() << "\n"; |
646 | } |
647 | } |
648 | |
649 | static void DumpLiteral4(uint32_t l, float f) { |
650 | outs() << format("0x%08" PRIx32"x", l); |
651 | if ((l & 0x7f800000) != 0x7f800000) |
652 | outs() << format(" (%.16e)\n", f); |
653 | else { |
654 | if (l == 0x7f800000) |
655 | outs() << " (+Infinity)\n"; |
656 | else if (l == 0xff800000) |
657 | outs() << " (-Infinity)\n"; |
658 | else if ((l & 0x00400000) == 0x00400000) |
659 | outs() << " (non-signaling Not-a-Number)\n"; |
660 | else |
661 | outs() << " (signaling Not-a-Number)\n"; |
662 | } |
663 | } |
664 | |
665 | static void DumpLiteral4Section(MachOObjectFile *O, const char *sect, |
666 | uint32_t sect_size, uint64_t sect_addr, |
667 | bool print_addresses) { |
668 | for (uint32_t i = 0; i < sect_size; i += sizeof(float)) { |
669 | if (print_addresses) { |
670 | if (O->is64Bit()) |
671 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
672 | else |
673 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
674 | } |
675 | float f; |
676 | memcpy(&f, sect + i, sizeof(float)); |
677 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
678 | sys::swapByteOrder(f); |
679 | uint32_t l; |
680 | memcpy(&l, sect + i, sizeof(uint32_t)); |
681 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
682 | sys::swapByteOrder(l); |
683 | DumpLiteral4(l, f); |
684 | } |
685 | } |
686 | |
687 | static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1, |
688 | double d) { |
689 | outs() << format("0x%08" PRIx32"x", l0) << " " << format("0x%08" PRIx32"x", l1); |
690 | uint32_t Hi, Lo; |
691 | Hi = (O->isLittleEndian()) ? l1 : l0; |
692 | Lo = (O->isLittleEndian()) ? l0 : l1; |
693 | |
694 | // Hi is the high word, so this is equivalent to if(isfinite(d)) |
695 | if ((Hi & 0x7ff00000) != 0x7ff00000) |
696 | outs() << format(" (%.16e)\n", d); |
697 | else { |
698 | if (Hi == 0x7ff00000 && Lo == 0) |
699 | outs() << " (+Infinity)\n"; |
700 | else if (Hi == 0xfff00000 && Lo == 0) |
701 | outs() << " (-Infinity)\n"; |
702 | else if ((Hi & 0x00080000) == 0x00080000) |
703 | outs() << " (non-signaling Not-a-Number)\n"; |
704 | else |
705 | outs() << " (signaling Not-a-Number)\n"; |
706 | } |
707 | } |
708 | |
709 | static void DumpLiteral8Section(MachOObjectFile *O, const char *sect, |
710 | uint32_t sect_size, uint64_t sect_addr, |
711 | bool print_addresses) { |
712 | for (uint32_t i = 0; i < sect_size; i += sizeof(double)) { |
713 | if (print_addresses) { |
714 | if (O->is64Bit()) |
715 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
716 | else |
717 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
718 | } |
719 | double d; |
720 | memcpy(&d, sect + i, sizeof(double)); |
721 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
722 | sys::swapByteOrder(d); |
723 | uint32_t l0, l1; |
724 | memcpy(&l0, sect + i, sizeof(uint32_t)); |
725 | memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); |
726 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
727 | sys::swapByteOrder(l0); |
728 | sys::swapByteOrder(l1); |
729 | } |
730 | DumpLiteral8(O, l0, l1, d); |
731 | } |
732 | } |
733 | |
734 | static void DumpLiteral16(uint32_t l0, uint32_t l1, uint32_t l2, uint32_t l3) { |
735 | outs() << format("0x%08" PRIx32"x", l0) << " "; |
736 | outs() << format("0x%08" PRIx32"x", l1) << " "; |
737 | outs() << format("0x%08" PRIx32"x", l2) << " "; |
738 | outs() << format("0x%08" PRIx32"x", l3) << "\n"; |
739 | } |
740 | |
741 | static void DumpLiteral16Section(MachOObjectFile *O, const char *sect, |
742 | uint32_t sect_size, uint64_t sect_addr, |
743 | bool print_addresses) { |
744 | for (uint32_t i = 0; i < sect_size; i += 16) { |
745 | if (print_addresses) { |
746 | if (O->is64Bit()) |
747 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
748 | else |
749 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
750 | } |
751 | uint32_t l0, l1, l2, l3; |
752 | memcpy(&l0, sect + i, sizeof(uint32_t)); |
753 | memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); |
754 | memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t)); |
755 | memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t)); |
756 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
757 | sys::swapByteOrder(l0); |
758 | sys::swapByteOrder(l1); |
759 | sys::swapByteOrder(l2); |
760 | sys::swapByteOrder(l3); |
761 | } |
762 | DumpLiteral16(l0, l1, l2, l3); |
763 | } |
764 | } |
765 | |
766 | static void DumpLiteralPointerSection(MachOObjectFile *O, |
767 | const SectionRef &Section, |
768 | const char *sect, uint32_t sect_size, |
769 | uint64_t sect_addr, |
770 | bool print_addresses) { |
771 | // Collect the literal sections in this Mach-O file. |
772 | std::vector<SectionRef> LiteralSections; |
773 | for (const SectionRef &Section : O->sections()) { |
774 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
775 | uint32_t section_type; |
776 | if (O->is64Bit()) { |
777 | const MachO::section_64 Sec = O->getSection64(Ref); |
778 | section_type = Sec.flags & MachO::SECTION_TYPE; |
779 | } else { |
780 | const MachO::section Sec = O->getSection(Ref); |
781 | section_type = Sec.flags & MachO::SECTION_TYPE; |
782 | } |
783 | if (section_type == MachO::S_CSTRING_LITERALS || |
784 | section_type == MachO::S_4BYTE_LITERALS || |
785 | section_type == MachO::S_8BYTE_LITERALS || |
786 | section_type == MachO::S_16BYTE_LITERALS) |
787 | LiteralSections.push_back(Section); |
788 | } |
789 | |
790 | // Set the size of the literal pointer. |
791 | uint32_t lp_size = O->is64Bit() ? 8 : 4; |
792 | |
793 | // Collect the external relocation symbols for the literal pointers. |
794 | std::vector<std::pair<uint64_t, SymbolRef>> Relocs; |
795 | for (const RelocationRef &Reloc : Section.relocations()) { |
796 | DataRefImpl Rel; |
797 | MachO::any_relocation_info RE; |
798 | bool isExtern = false; |
799 | Rel = Reloc.getRawDataRefImpl(); |
800 | RE = O->getRelocation(Rel); |
801 | isExtern = O->getPlainRelocationExternal(RE); |
802 | if (isExtern) { |
803 | uint64_t RelocOffset = Reloc.getOffset(); |
804 | symbol_iterator RelocSym = Reloc.getSymbol(); |
805 | Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); |
806 | } |
807 | } |
808 | array_pod_sort(Relocs.begin(), Relocs.end()); |
809 | |
810 | // Dump each literal pointer. |
811 | for (uint32_t i = 0; i < sect_size; i += lp_size) { |
812 | if (print_addresses) { |
813 | if (O->is64Bit()) |
814 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
815 | else |
816 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
817 | } |
818 | uint64_t lp; |
819 | if (O->is64Bit()) { |
820 | memcpy(&lp, sect + i, sizeof(uint64_t)); |
821 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
822 | sys::swapByteOrder(lp); |
823 | } else { |
824 | uint32_t li; |
825 | memcpy(&li, sect + i, sizeof(uint32_t)); |
826 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
827 | sys::swapByteOrder(li); |
828 | lp = li; |
829 | } |
830 | |
831 | // First look for an external relocation entry for this literal pointer. |
832 | auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { |
833 | return P.first == i; |
834 | }); |
835 | if (Reloc != Relocs.end()) { |
836 | symbol_iterator RelocSym = Reloc->second; |
837 | Expected<StringRef> SymName = RelocSym->getName(); |
838 | if (!SymName) |
839 | report_error(O->getFileName(), SymName.takeError()); |
840 | outs() << "external relocation entry for symbol:" << *SymName << "\n"; |
841 | continue; |
842 | } |
843 | |
844 | // For local references see what the section the literal pointer points to. |
845 | auto Sect = find_if(LiteralSections, [&](const SectionRef &R) { |
846 | return lp >= R.getAddress() && lp < R.getAddress() + R.getSize(); |
847 | }); |
848 | if (Sect == LiteralSections.end()) { |
849 | outs() << format("0x%" PRIx64"l" "x", lp) << " (not in a literal section)\n"; |
850 | continue; |
851 | } |
852 | |
853 | uint64_t SectAddress = Sect->getAddress(); |
854 | uint64_t SectSize = Sect->getSize(); |
855 | |
856 | StringRef SectName; |
857 | Sect->getName(SectName); |
858 | DataRefImpl Ref = Sect->getRawDataRefImpl(); |
859 | StringRef SegmentName = O->getSectionFinalSegmentName(Ref); |
860 | outs() << SegmentName << ":" << SectName << ":"; |
861 | |
862 | uint32_t section_type; |
863 | if (O->is64Bit()) { |
864 | const MachO::section_64 Sec = O->getSection64(Ref); |
865 | section_type = Sec.flags & MachO::SECTION_TYPE; |
866 | } else { |
867 | const MachO::section Sec = O->getSection(Ref); |
868 | section_type = Sec.flags & MachO::SECTION_TYPE; |
869 | } |
870 | |
871 | StringRef BytesStr; |
872 | Sect->getContents(BytesStr); |
873 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
874 | |
875 | switch (section_type) { |
876 | case MachO::S_CSTRING_LITERALS: |
877 | for (uint64_t i = lp - SectAddress; i < SectSize && Contents[i] != '\0'; |
878 | i++) { |
879 | DumpCstringChar(Contents[i]); |
880 | } |
881 | outs() << "\n"; |
882 | break; |
883 | case MachO::S_4BYTE_LITERALS: |
884 | float f; |
885 | memcpy(&f, Contents + (lp - SectAddress), sizeof(float)); |
886 | uint32_t l; |
887 | memcpy(&l, Contents + (lp - SectAddress), sizeof(uint32_t)); |
888 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
889 | sys::swapByteOrder(f); |
890 | sys::swapByteOrder(l); |
891 | } |
892 | DumpLiteral4(l, f); |
893 | break; |
894 | case MachO::S_8BYTE_LITERALS: { |
895 | double d; |
896 | memcpy(&d, Contents + (lp - SectAddress), sizeof(double)); |
897 | uint32_t l0, l1; |
898 | memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); |
899 | memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), |
900 | sizeof(uint32_t)); |
901 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
902 | sys::swapByteOrder(f); |
903 | sys::swapByteOrder(l0); |
904 | sys::swapByteOrder(l1); |
905 | } |
906 | DumpLiteral8(O, l0, l1, d); |
907 | break; |
908 | } |
909 | case MachO::S_16BYTE_LITERALS: { |
910 | uint32_t l0, l1, l2, l3; |
911 | memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); |
912 | memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), |
913 | sizeof(uint32_t)); |
914 | memcpy(&l2, Contents + (lp - SectAddress) + 2 * sizeof(uint32_t), |
915 | sizeof(uint32_t)); |
916 | memcpy(&l3, Contents + (lp - SectAddress) + 3 * sizeof(uint32_t), |
917 | sizeof(uint32_t)); |
918 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
919 | sys::swapByteOrder(l0); |
920 | sys::swapByteOrder(l1); |
921 | sys::swapByteOrder(l2); |
922 | sys::swapByteOrder(l3); |
923 | } |
924 | DumpLiteral16(l0, l1, l2, l3); |
925 | break; |
926 | } |
927 | } |
928 | } |
929 | } |
930 | |
931 | static void DumpInitTermPointerSection(MachOObjectFile *O, const char *sect, |
932 | uint32_t sect_size, uint64_t sect_addr, |
933 | SymbolAddressMap *AddrMap, |
934 | bool verbose) { |
935 | uint32_t stride; |
936 | stride = (O->is64Bit()) ? sizeof(uint64_t) : sizeof(uint32_t); |
937 | for (uint32_t i = 0; i < sect_size; i += stride) { |
938 | const char *SymbolName = nullptr; |
939 | if (O->is64Bit()) { |
940 | outs() << format("0x%016" PRIx64"l" "x", sect_addr + i * stride) << " "; |
941 | uint64_t pointer_value; |
942 | memcpy(&pointer_value, sect + i, stride); |
943 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
944 | sys::swapByteOrder(pointer_value); |
945 | outs() << format("0x%016" PRIx64"l" "x", pointer_value); |
946 | if (verbose) |
947 | SymbolName = GuessSymbolName(pointer_value, AddrMap); |
948 | } else { |
949 | outs() << format("0x%08" PRIx64"l" "x", sect_addr + i * stride) << " "; |
950 | uint32_t pointer_value; |
951 | memcpy(&pointer_value, sect + i, stride); |
952 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
953 | sys::swapByteOrder(pointer_value); |
954 | outs() << format("0x%08" PRIx32"x", pointer_value); |
955 | if (verbose) |
956 | SymbolName = GuessSymbolName(pointer_value, AddrMap); |
957 | } |
958 | if (SymbolName) |
959 | outs() << " " << SymbolName; |
960 | outs() << "\n"; |
961 | } |
962 | } |
963 | |
964 | static void DumpRawSectionContents(MachOObjectFile *O, const char *sect, |
965 | uint32_t size, uint64_t addr) { |
966 | uint32_t cputype = O->getHeader().cputype; |
967 | if (cputype == MachO::CPU_TYPE_I386 || cputype == MachO::CPU_TYPE_X86_64) { |
968 | uint32_t j; |
969 | for (uint32_t i = 0; i < size; i += j, addr += j) { |
970 | if (O->is64Bit()) |
971 | outs() << format("%016" PRIx64"l" "x", addr) << "\t"; |
972 | else |
973 | outs() << format("%08" PRIx64"l" "x", addr) << "\t"; |
974 | for (j = 0; j < 16 && i + j < size; j++) { |
975 | uint8_t byte_word = *(sect + i + j); |
976 | outs() << format("%02" PRIx32"x", (uint32_t)byte_word) << " "; |
977 | } |
978 | outs() << "\n"; |
979 | } |
980 | } else { |
981 | uint32_t j; |
982 | for (uint32_t i = 0; i < size; i += j, addr += j) { |
983 | if (O->is64Bit()) |
984 | outs() << format("%016" PRIx64"l" "x", addr) << "\t"; |
985 | else |
986 | outs() << format("%08" PRIx64"l" "x", addr) << "\t"; |
987 | for (j = 0; j < 4 * sizeof(int32_t) && i + j < size; |
988 | j += sizeof(int32_t)) { |
989 | if (i + j + sizeof(int32_t) <= size) { |
990 | uint32_t long_word; |
991 | memcpy(&long_word, sect + i + j, sizeof(int32_t)); |
992 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
993 | sys::swapByteOrder(long_word); |
994 | outs() << format("%08" PRIx32"x", long_word) << " "; |
995 | } else { |
996 | for (uint32_t k = 0; i + j + k < size; k++) { |
997 | uint8_t byte_word = *(sect + i + j + k); |
998 | outs() << format("%02" PRIx32"x", (uint32_t)byte_word) << " "; |
999 | } |
1000 | } |
1001 | } |
1002 | outs() << "\n"; |
1003 | } |
1004 | } |
1005 | } |
1006 | |
1007 | static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, |
1008 | StringRef DisSegName, StringRef DisSectName); |
1009 | static void DumpProtocolSection(MachOObjectFile *O, const char *sect, |
1010 | uint32_t size, uint32_t addr); |
1011 | #ifdef HAVE_LIBXAR |
1012 | static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, |
1013 | uint32_t size, bool verbose, |
1014 | bool PrintXarHeader, bool PrintXarFileHeaders, |
1015 | std::string XarMemberName); |
1016 | #endif // defined(HAVE_LIBXAR) |
1017 | |
1018 | static void DumpSectionContents(StringRef Filename, MachOObjectFile *O, |
1019 | bool verbose) { |
1020 | SymbolAddressMap AddrMap; |
1021 | if (verbose) |
1022 | CreateSymbolAddressMap(O, &AddrMap); |
1023 | |
1024 | for (unsigned i = 0; i < FilterSections.size(); ++i) { |
1025 | StringRef DumpSection = FilterSections[i]; |
1026 | std::pair<StringRef, StringRef> DumpSegSectName; |
1027 | DumpSegSectName = DumpSection.split(','); |
1028 | StringRef DumpSegName, DumpSectName; |
1029 | if (DumpSegSectName.second.size()) { |
1030 | DumpSegName = DumpSegSectName.first; |
1031 | DumpSectName = DumpSegSectName.second; |
1032 | } else { |
1033 | DumpSegName = ""; |
1034 | DumpSectName = DumpSegSectName.first; |
1035 | } |
1036 | for (const SectionRef &Section : O->sections()) { |
1037 | StringRef SectName; |
1038 | Section.getName(SectName); |
1039 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
1040 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
1041 | if ((DumpSegName.empty() || SegName == DumpSegName) && |
1042 | (SectName == DumpSectName)) { |
1043 | |
1044 | uint32_t section_flags; |
1045 | if (O->is64Bit()) { |
1046 | const MachO::section_64 Sec = O->getSection64(Ref); |
1047 | section_flags = Sec.flags; |
1048 | |
1049 | } else { |
1050 | const MachO::section Sec = O->getSection(Ref); |
1051 | section_flags = Sec.flags; |
1052 | } |
1053 | uint32_t section_type = section_flags & MachO::SECTION_TYPE; |
1054 | |
1055 | StringRef BytesStr; |
1056 | Section.getContents(BytesStr); |
1057 | const char *sect = reinterpret_cast<const char *>(BytesStr.data()); |
1058 | uint32_t sect_size = BytesStr.size(); |
1059 | uint64_t sect_addr = Section.getAddress(); |
1060 | |
1061 | outs() << "Contents of (" << SegName << "," << SectName |
1062 | << ") section\n"; |
1063 | |
1064 | if (verbose) { |
1065 | if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) || |
1066 | (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) { |
1067 | DisassembleMachO(Filename, O, SegName, SectName); |
1068 | continue; |
1069 | } |
1070 | if (SegName == "__TEXT" && SectName == "__info_plist") { |
1071 | outs() << sect; |
1072 | continue; |
1073 | } |
1074 | if (SegName == "__OBJC" && SectName == "__protocol") { |
1075 | DumpProtocolSection(O, sect, sect_size, sect_addr); |
1076 | continue; |
1077 | } |
1078 | #ifdef HAVE_LIBXAR |
1079 | if (SegName == "__LLVM" && SectName == "__bundle") { |
1080 | DumpBitcodeSection(O, sect, sect_size, verbose, !NoSymbolicOperands, |
1081 | ArchiveHeaders, ""); |
1082 | continue; |
1083 | } |
1084 | #endif // defined(HAVE_LIBXAR) |
1085 | switch (section_type) { |
1086 | case MachO::S_REGULAR: |
1087 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
1088 | break; |
1089 | case MachO::S_ZEROFILL: |
1090 | outs() << "zerofill section and has no contents in the file\n"; |
1091 | break; |
1092 | case MachO::S_CSTRING_LITERALS: |
1093 | DumpCstringSection(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1094 | break; |
1095 | case MachO::S_4BYTE_LITERALS: |
1096 | DumpLiteral4Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1097 | break; |
1098 | case MachO::S_8BYTE_LITERALS: |
1099 | DumpLiteral8Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1100 | break; |
1101 | case MachO::S_16BYTE_LITERALS: |
1102 | DumpLiteral16Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1103 | break; |
1104 | case MachO::S_LITERAL_POINTERS: |
1105 | DumpLiteralPointerSection(O, Section, sect, sect_size, sect_addr, |
1106 | !NoLeadingAddr); |
1107 | break; |
1108 | case MachO::S_MOD_INIT_FUNC_POINTERS: |
1109 | case MachO::S_MOD_TERM_FUNC_POINTERS: |
1110 | DumpInitTermPointerSection(O, sect, sect_size, sect_addr, &AddrMap, |
1111 | verbose); |
1112 | break; |
1113 | default: |
1114 | outs() << "Unknown section type (" |
1115 | << format("0x%08" PRIx32"x", section_type) << ")\n"; |
1116 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
1117 | break; |
1118 | } |
1119 | } else { |
1120 | if (section_type == MachO::S_ZEROFILL) |
1121 | outs() << "zerofill section and has no contents in the file\n"; |
1122 | else |
1123 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
1124 | } |
1125 | } |
1126 | } |
1127 | } |
1128 | } |
1129 | |
1130 | static void DumpInfoPlistSectionContents(StringRef Filename, |
1131 | MachOObjectFile *O) { |
1132 | for (const SectionRef &Section : O->sections()) { |
1133 | StringRef SectName; |
1134 | Section.getName(SectName); |
1135 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
1136 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
1137 | if (SegName == "__TEXT" && SectName == "__info_plist") { |
1138 | if (!NoLeadingHeaders) |
1139 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
1140 | StringRef BytesStr; |
1141 | Section.getContents(BytesStr); |
1142 | const char *sect = reinterpret_cast<const char *>(BytesStr.data()); |
1143 | outs() << format("%.*s", BytesStr.size(), sect) << "\n"; |
1144 | return; |
1145 | } |
1146 | } |
1147 | } |
1148 | |
1149 | // checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file |
1150 | // and if it is and there is a list of architecture flags is specified then |
1151 | // check to make sure this Mach-O file is one of those architectures or all |
1152 | // architectures were specified. If not then an error is generated and this |
1153 | // routine returns false. Else it returns true. |
1154 | static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) { |
1155 | auto *MachO = dyn_cast<MachOObjectFile>(O); |
1156 | |
1157 | if (!MachO || ArchAll || ArchFlags.empty()) |
1158 | return true; |
1159 | |
1160 | MachO::mach_header H; |
1161 | MachO::mach_header_64 H_64; |
1162 | Triple T; |
1163 | const char *McpuDefault, *ArchFlag; |
1164 | if (MachO->is64Bit()) { |
1165 | H_64 = MachO->MachOObjectFile::getHeader64(); |
1166 | T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype, |
1167 | &McpuDefault, &ArchFlag); |
1168 | } else { |
1169 | H = MachO->MachOObjectFile::getHeader(); |
1170 | T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype, |
1171 | &McpuDefault, &ArchFlag); |
1172 | } |
1173 | const std::string ArchFlagName(ArchFlag); |
1174 | if (none_of(ArchFlags, [&](const std::string &Name) { |
1175 | return Name == ArchFlagName; |
1176 | })) { |
1177 | errs() << "llvm-objdump: " + Filename + ": No architecture specified.\n"; |
1178 | return false; |
1179 | } |
1180 | return true; |
1181 | } |
1182 | |
1183 | static void printObjcMetaData(MachOObjectFile *O, bool verbose); |
1184 | |
1185 | // ProcessMachO() is passed a single opened Mach-O file, which may be an |
1186 | // archive member and or in a slice of a universal file. It prints the |
1187 | // the file name and header info and then processes it according to the |
1188 | // command line options. |
1189 | static void ProcessMachO(StringRef Name, MachOObjectFile *MachOOF, |
1190 | StringRef ArchiveMemberName = StringRef(), |
1191 | StringRef ArchitectureName = StringRef()) { |
1192 | // If we are doing some processing here on the Mach-O file print the header |
1193 | // info. And don't print it otherwise like in the case of printing the |
1194 | // UniversalHeaders or ArchiveHeaders. |
1195 | if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind || SymbolTable || |
1196 | LazyBind || WeakBind || IndirectSymbols || DataInCode || LinkOptHints || |
1197 | DylibsUsed || DylibId || ObjcMetaData || (FilterSections.size() != 0)) { |
1198 | if (!NoLeadingHeaders) { |
1199 | outs() << Name; |
1200 | if (!ArchiveMemberName.empty()) |
1201 | outs() << '(' << ArchiveMemberName << ')'; |
1202 | if (!ArchitectureName.empty()) |
1203 | outs() << " (architecture " << ArchitectureName << ")"; |
1204 | outs() << ":\n"; |
1205 | } |
1206 | } |
1207 | // To use the report_error() form with an ArchiveName and FileName set |
1208 | // these up based on what is passed for Name and ArchiveMemberName. |
1209 | StringRef ArchiveName; |
1210 | StringRef FileName; |
1211 | if (!ArchiveMemberName.empty()) { |
1212 | ArchiveName = Name; |
1213 | FileName = ArchiveMemberName; |
1214 | } else { |
1215 | ArchiveName = StringRef(); |
1216 | FileName = Name; |
1217 | } |
1218 | |
1219 | // If we need the symbol table to do the operation then check it here to |
1220 | // produce a good error message as to where the Mach-O file comes from in |
1221 | // the error message. |
1222 | if (Disassemble || IndirectSymbols || FilterSections.size() != 0 || |
1223 | UnwindInfo) |
1224 | if (Error Err = MachOOF->checkSymbolTable()) |
1225 | report_error(ArchiveName, FileName, std::move(Err), ArchitectureName); |
1226 | |
1227 | if (Disassemble) { |
1228 | if (MachOOF->getHeader().filetype == MachO::MH_KEXT_BUNDLE && |
1229 | MachOOF->getHeader().cputype == MachO::CPU_TYPE_ARM64) |
1230 | DisassembleMachO(FileName, MachOOF, "__TEXT_EXEC", "__text"); |
1231 | else |
1232 | DisassembleMachO(FileName, MachOOF, "__TEXT", "__text"); |
1233 | } |
1234 | if (IndirectSymbols) |
1235 | PrintIndirectSymbols(MachOOF, !NonVerbose); |
1236 | if (DataInCode) |
1237 | PrintDataInCodeTable(MachOOF, !NonVerbose); |
1238 | if (LinkOptHints) |
1239 | PrintLinkOptHints(MachOOF); |
1240 | if (Relocations) |
1241 | PrintRelocations(MachOOF); |
1242 | if (SectionHeaders) |
1243 | PrintSectionHeaders(MachOOF); |
1244 | if (SectionContents) |
1245 | PrintSectionContents(MachOOF); |
1246 | if (FilterSections.size() != 0) |
1247 | DumpSectionContents(FileName, MachOOF, !NonVerbose); |
1248 | if (InfoPlist) |
1249 | DumpInfoPlistSectionContents(FileName, MachOOF); |
1250 | if (DylibsUsed) |
1251 | PrintDylibs(MachOOF, false); |
1252 | if (DylibId) |
1253 | PrintDylibs(MachOOF, true); |
1254 | if (SymbolTable) |
1255 | PrintSymbolTable(MachOOF, ArchiveName, ArchitectureName); |
1256 | if (UnwindInfo) |
1257 | printMachOUnwindInfo(MachOOF); |
1258 | if (PrivateHeaders) { |
1259 | printMachOFileHeader(MachOOF); |
1260 | printMachOLoadCommands(MachOOF); |
1261 | } |
1262 | if (FirstPrivateHeader) |
1263 | printMachOFileHeader(MachOOF); |
1264 | if (ObjcMetaData) |
1265 | printObjcMetaData(MachOOF, !NonVerbose); |
1266 | if (ExportsTrie) |
1267 | printExportsTrie(MachOOF); |
1268 | if (Rebase) |
1269 | printRebaseTable(MachOOF); |
1270 | if (Bind) |
1271 | printBindTable(MachOOF); |
1272 | if (LazyBind) |
1273 | printLazyBindTable(MachOOF); |
1274 | if (WeakBind) |
1275 | printWeakBindTable(MachOOF); |
1276 | |
1277 | if (DwarfDumpType != DIDT_Null) { |
1278 | std::unique_ptr<DIContext> DICtx(new DWARFContextInMemory(*MachOOF)); |
1279 | // Dump the complete DWARF structure. |
1280 | DIDumpOptions DumpOpts; |
1281 | DumpOpts.DumpType = DwarfDumpType; |
1282 | DumpOpts.DumpEH = true; |
1283 | DICtx->dump(outs(), DumpOpts); |
1284 | } |
1285 | } |
1286 | |
1287 | // printUnknownCPUType() helps print_fat_headers for unknown CPU's. |
1288 | static void printUnknownCPUType(uint32_t cputype, uint32_t cpusubtype) { |
1289 | outs() << " cputype (" << cputype << ")\n"; |
1290 | outs() << " cpusubtype (" << cpusubtype << ")\n"; |
1291 | } |
1292 | |
1293 | // printCPUType() helps print_fat_headers by printing the cputype and |
1294 | // pusubtype (symbolically for the one's it knows about). |
1295 | static void printCPUType(uint32_t cputype, uint32_t cpusubtype) { |
1296 | switch (cputype) { |
1297 | case MachO::CPU_TYPE_I386: |
1298 | switch (cpusubtype) { |
1299 | case MachO::CPU_SUBTYPE_I386_ALL: |
1300 | outs() << " cputype CPU_TYPE_I386\n"; |
1301 | outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n"; |
1302 | break; |
1303 | default: |
1304 | printUnknownCPUType(cputype, cpusubtype); |
1305 | break; |
1306 | } |
1307 | break; |
1308 | case MachO::CPU_TYPE_X86_64: |
1309 | switch (cpusubtype) { |
1310 | case MachO::CPU_SUBTYPE_X86_64_ALL: |
1311 | outs() << " cputype CPU_TYPE_X86_64\n"; |
1312 | outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n"; |
1313 | break; |
1314 | case MachO::CPU_SUBTYPE_X86_64_H: |
1315 | outs() << " cputype CPU_TYPE_X86_64\n"; |
1316 | outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n"; |
1317 | break; |
1318 | default: |
1319 | printUnknownCPUType(cputype, cpusubtype); |
1320 | break; |
1321 | } |
1322 | break; |
1323 | case MachO::CPU_TYPE_ARM: |
1324 | switch (cpusubtype) { |
1325 | case MachO::CPU_SUBTYPE_ARM_ALL: |
1326 | outs() << " cputype CPU_TYPE_ARM\n"; |
1327 | outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n"; |
1328 | break; |
1329 | case MachO::CPU_SUBTYPE_ARM_V4T: |
1330 | outs() << " cputype CPU_TYPE_ARM\n"; |
1331 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n"; |
1332 | break; |
1333 | case MachO::CPU_SUBTYPE_ARM_V5TEJ: |
1334 | outs() << " cputype CPU_TYPE_ARM\n"; |
1335 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n"; |
1336 | break; |
1337 | case MachO::CPU_SUBTYPE_ARM_XSCALE: |
1338 | outs() << " cputype CPU_TYPE_ARM\n"; |
1339 | outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n"; |
1340 | break; |
1341 | case MachO::CPU_SUBTYPE_ARM_V6: |
1342 | outs() << " cputype CPU_TYPE_ARM\n"; |
1343 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n"; |
1344 | break; |
1345 | case MachO::CPU_SUBTYPE_ARM_V6M: |
1346 | outs() << " cputype CPU_TYPE_ARM\n"; |
1347 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n"; |
1348 | break; |
1349 | case MachO::CPU_SUBTYPE_ARM_V7: |
1350 | outs() << " cputype CPU_TYPE_ARM\n"; |
1351 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n"; |
1352 | break; |
1353 | case MachO::CPU_SUBTYPE_ARM_V7EM: |
1354 | outs() << " cputype CPU_TYPE_ARM\n"; |
1355 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n"; |
1356 | break; |
1357 | case MachO::CPU_SUBTYPE_ARM_V7K: |
1358 | outs() << " cputype CPU_TYPE_ARM\n"; |
1359 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n"; |
1360 | break; |
1361 | case MachO::CPU_SUBTYPE_ARM_V7M: |
1362 | outs() << " cputype CPU_TYPE_ARM\n"; |
1363 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n"; |
1364 | break; |
1365 | case MachO::CPU_SUBTYPE_ARM_V7S: |
1366 | outs() << " cputype CPU_TYPE_ARM\n"; |
1367 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n"; |
1368 | break; |
1369 | default: |
1370 | printUnknownCPUType(cputype, cpusubtype); |
1371 | break; |
1372 | } |
1373 | break; |
1374 | case MachO::CPU_TYPE_ARM64: |
1375 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
1376 | case MachO::CPU_SUBTYPE_ARM64_ALL: |
1377 | outs() << " cputype CPU_TYPE_ARM64\n"; |
1378 | outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n"; |
1379 | break; |
1380 | default: |
1381 | printUnknownCPUType(cputype, cpusubtype); |
1382 | break; |
1383 | } |
1384 | break; |
1385 | default: |
1386 | printUnknownCPUType(cputype, cpusubtype); |
1387 | break; |
1388 | } |
1389 | } |
1390 | |
1391 | static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB, |
1392 | bool verbose) { |
1393 | outs() << "Fat headers\n"; |
1394 | if (verbose) { |
1395 | if (UB->getMagic() == MachO::FAT_MAGIC) |
1396 | outs() << "fat_magic FAT_MAGIC\n"; |
1397 | else // UB->getMagic() == MachO::FAT_MAGIC_64 |
1398 | outs() << "fat_magic FAT_MAGIC_64\n"; |
1399 | } else |
1400 | outs() << "fat_magic " << format("0x%" PRIx32"x", MachO::FAT_MAGIC) << "\n"; |
1401 | |
1402 | uint32_t nfat_arch = UB->getNumberOfObjects(); |
1403 | StringRef Buf = UB->getData(); |
1404 | uint64_t size = Buf.size(); |
1405 | uint64_t big_size = sizeof(struct MachO::fat_header) + |
1406 | nfat_arch * sizeof(struct MachO::fat_arch); |
1407 | outs() << "nfat_arch " << UB->getNumberOfObjects(); |
1408 | if (nfat_arch == 0) |
1409 | outs() << " (malformed, contains zero architecture types)\n"; |
1410 | else if (big_size > size) |
1411 | outs() << " (malformed, architectures past end of file)\n"; |
1412 | else |
1413 | outs() << "\n"; |
1414 | |
1415 | for (uint32_t i = 0; i < nfat_arch; ++i) { |
1416 | MachOUniversalBinary::ObjectForArch OFA(UB, i); |
1417 | uint32_t cputype = OFA.getCPUType(); |
1418 | uint32_t cpusubtype = OFA.getCPUSubType(); |
1419 | outs() << "architecture "; |
1420 | for (uint32_t j = 0; i != 0 && j <= i - 1; j++) { |
1421 | MachOUniversalBinary::ObjectForArch other_OFA(UB, j); |
1422 | uint32_t other_cputype = other_OFA.getCPUType(); |
1423 | uint32_t other_cpusubtype = other_OFA.getCPUSubType(); |
1424 | if (cputype != 0 && cpusubtype != 0 && cputype == other_cputype && |
1425 | (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) == |
1426 | (other_cpusubtype & ~MachO::CPU_SUBTYPE_MASK)) { |
1427 | outs() << "(illegal duplicate architecture) "; |
1428 | break; |
1429 | } |
1430 | } |
1431 | if (verbose) { |
1432 | outs() << OFA.getArchFlagName() << "\n"; |
1433 | printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
1434 | } else { |
1435 | outs() << i << "\n"; |
1436 | outs() << " cputype " << cputype << "\n"; |
1437 | outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) |
1438 | << "\n"; |
1439 | } |
1440 | if (verbose && |
1441 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) |
1442 | outs() << " capabilities CPU_SUBTYPE_LIB64\n"; |
1443 | else |
1444 | outs() << " capabilities " |
1445 | << format("0x%" PRIx32"x", |
1446 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24) << "\n"; |
1447 | outs() << " offset " << OFA.getOffset(); |
1448 | if (OFA.getOffset() > size) |
1449 | outs() << " (past end of file)"; |
1450 | if (OFA.getOffset() % (1 << OFA.getAlign()) != 0) |
1451 | outs() << " (not aligned on it's alignment (2^" << OFA.getAlign() << ")"; |
1452 | outs() << "\n"; |
1453 | outs() << " size " << OFA.getSize(); |
1454 | big_size = OFA.getOffset() + OFA.getSize(); |
1455 | if (big_size > size) |
1456 | outs() << " (past end of file)"; |
1457 | outs() << "\n"; |
1458 | outs() << " align 2^" << OFA.getAlign() << " (" << (1 << OFA.getAlign()) |
1459 | << ")\n"; |
1460 | } |
1461 | } |
1462 | |
1463 | static void printArchiveChild(StringRef Filename, const Archive::Child &C, |
1464 | bool verbose, bool print_offset, |
1465 | StringRef ArchitectureName = StringRef()) { |
1466 | if (print_offset) |
1467 | outs() << C.getChildOffset() << "\t"; |
1468 | Expected<sys::fs::perms> ModeOrErr = C.getAccessMode(); |
1469 | if (!ModeOrErr) |
1470 | report_error(Filename, C, ModeOrErr.takeError(), ArchitectureName); |
1471 | sys::fs::perms Mode = ModeOrErr.get(); |
1472 | if (verbose) { |
1473 | // FIXME: this first dash, "-", is for (Mode & S_IFMT) == S_IFREG. |
1474 | // But there is nothing in sys::fs::perms for S_IFMT or S_IFREG. |
1475 | outs() << "-"; |
1476 | outs() << ((Mode & sys::fs::owner_read) ? "r" : "-"); |
1477 | outs() << ((Mode & sys::fs::owner_write) ? "w" : "-"); |
1478 | outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-"); |
1479 | outs() << ((Mode & sys::fs::group_read) ? "r" : "-"); |
1480 | outs() << ((Mode & sys::fs::group_write) ? "w" : "-"); |
1481 | outs() << ((Mode & sys::fs::group_exe) ? "x" : "-"); |
1482 | outs() << ((Mode & sys::fs::others_read) ? "r" : "-"); |
1483 | outs() << ((Mode & sys::fs::others_write) ? "w" : "-"); |
1484 | outs() << ((Mode & sys::fs::others_exe) ? "x" : "-"); |
1485 | } else { |
1486 | outs() << format("0%o ", Mode); |
1487 | } |
1488 | |
1489 | Expected<unsigned> UIDOrErr = C.getUID(); |
1490 | if (!UIDOrErr) |
1491 | report_error(Filename, C, UIDOrErr.takeError(), ArchitectureName); |
1492 | unsigned UID = UIDOrErr.get(); |
1493 | outs() << format("%3d/", UID); |
1494 | Expected<unsigned> GIDOrErr = C.getGID(); |
1495 | if (!GIDOrErr) |
1496 | report_error(Filename, C, GIDOrErr.takeError(), ArchitectureName); |
1497 | unsigned GID = GIDOrErr.get(); |
1498 | outs() << format("%-3d ", GID); |
1499 | Expected<uint64_t> Size = C.getRawSize(); |
1500 | if (!Size) |
1501 | report_error(Filename, C, Size.takeError(), ArchitectureName); |
1502 | outs() << format("%5" PRId64"l" "d", Size.get()) << " "; |
1503 | |
1504 | StringRef RawLastModified = C.getRawLastModified(); |
1505 | if (verbose) { |
1506 | unsigned Seconds; |
1507 | if (RawLastModified.getAsInteger(10, Seconds)) |
1508 | outs() << "(date: \"" << RawLastModified |
1509 | << "\" contains non-decimal chars) "; |
1510 | else { |
1511 | // Since cime(3) returns a 26 character string of the form: |
1512 | // "Sun Sep 16 01:03:52 1973\n\0" |
1513 | // just print 24 characters. |
1514 | time_t t = Seconds; |
1515 | outs() << format("%.24s ", ctime(&t)); |
1516 | } |
1517 | } else { |
1518 | outs() << RawLastModified << " "; |
1519 | } |
1520 | |
1521 | if (verbose) { |
1522 | Expected<StringRef> NameOrErr = C.getName(); |
1523 | if (!NameOrErr) { |
1524 | consumeError(NameOrErr.takeError()); |
1525 | Expected<StringRef> NameOrErr = C.getRawName(); |
1526 | if (!NameOrErr) |
1527 | report_error(Filename, C, NameOrErr.takeError(), ArchitectureName); |
1528 | StringRef RawName = NameOrErr.get(); |
1529 | outs() << RawName << "\n"; |
1530 | } else { |
1531 | StringRef Name = NameOrErr.get(); |
1532 | outs() << Name << "\n"; |
1533 | } |
1534 | } else { |
1535 | Expected<StringRef> NameOrErr = C.getRawName(); |
1536 | if (!NameOrErr) |
1537 | report_error(Filename, C, NameOrErr.takeError(), ArchitectureName); |
1538 | StringRef RawName = NameOrErr.get(); |
1539 | outs() << RawName << "\n"; |
1540 | } |
1541 | } |
1542 | |
1543 | static void printArchiveHeaders(StringRef Filename, Archive *A, bool verbose, |
1544 | bool print_offset, |
1545 | StringRef ArchitectureName = StringRef()) { |
1546 | Error Err = Error::success(); |
1547 | ; |
1548 | for (const auto &C : A->children(Err, false)) |
1549 | printArchiveChild(Filename, C, verbose, print_offset, ArchitectureName); |
1550 | |
1551 | if (Err) |
1552 | report_error(StringRef(), Filename, std::move(Err), ArchitectureName); |
1553 | } |
1554 | |
1555 | // ParseInputMachO() parses the named Mach-O file in Filename and handles the |
1556 | // -arch flags selecting just those slices as specified by them and also parses |
1557 | // archive files. Then for each individual Mach-O file ProcessMachO() is |
1558 | // called to process the file based on the command line options. |
1559 | void llvm::ParseInputMachO(StringRef Filename) { |
1560 | // Check for -arch all and verifiy the -arch flags are valid. |
1561 | for (unsigned i = 0; i < ArchFlags.size(); ++i) { |
1562 | if (ArchFlags[i] == "all") { |
1563 | ArchAll = true; |
1564 | } else { |
1565 | if (!MachOObjectFile::isValidArch(ArchFlags[i])) { |
1566 | errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] + |
1567 | "'for the -arch option\n"; |
1568 | return; |
1569 | } |
1570 | } |
1571 | } |
1572 | |
1573 | // Attempt to open the binary. |
1574 | Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename); |
1575 | if (!BinaryOrErr) { |
1576 | if (auto E = isNotObjectErrorInvalidFileType(BinaryOrErr.takeError())) |
1577 | report_error(Filename, std::move(E)); |
1578 | else |
1579 | outs() << Filename << ": is not an object file\n"; |
1580 | return; |
1581 | } |
1582 | Binary &Bin = *BinaryOrErr.get().getBinary(); |
1583 | |
1584 | if (Archive *A = dyn_cast<Archive>(&Bin)) { |
1585 | outs() << "Archive : " << Filename << "\n"; |
1586 | if (ArchiveHeaders) |
1587 | printArchiveHeaders(Filename, A, !NonVerbose, ArchiveMemberOffsets); |
1588 | |
1589 | Error Err = Error::success(); |
1590 | for (auto &C : A->children(Err)) { |
1591 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
1592 | if (!ChildOrErr) { |
1593 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
1594 | report_error(Filename, C, std::move(E)); |
1595 | continue; |
1596 | } |
1597 | if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { |
1598 | if (!checkMachOAndArchFlags(O, Filename)) |
1599 | return; |
1600 | ProcessMachO(Filename, O, O->getFileName()); |
1601 | } |
1602 | } |
1603 | if (Err) |
1604 | report_error(Filename, std::move(Err)); |
1605 | return; |
1606 | } |
1607 | if (UniversalHeaders) { |
1608 | if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) |
1609 | printMachOUniversalHeaders(UB, !NonVerbose); |
1610 | } |
1611 | if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) { |
1612 | // If we have a list of architecture flags specified dump only those. |
1613 | if (!ArchAll && ArchFlags.size() != 0) { |
1614 | // Look for a slice in the universal binary that matches each ArchFlag. |
1615 | bool ArchFound; |
1616 | for (unsigned i = 0; i < ArchFlags.size(); ++i) { |
1617 | ArchFound = false; |
1618 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
1619 | E = UB->end_objects(); |
1620 | I != E; ++I) { |
1621 | if (ArchFlags[i] == I->getArchFlagName()) { |
1622 | ArchFound = true; |
1623 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = |
1624 | I->getAsObjectFile(); |
1625 | std::string ArchitectureName = ""; |
1626 | if (ArchFlags.size() > 1) |
1627 | ArchitectureName = I->getArchFlagName(); |
1628 | if (ObjOrErr) { |
1629 | ObjectFile &O = *ObjOrErr.get(); |
1630 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) |
1631 | ProcessMachO(Filename, MachOOF, "", ArchitectureName); |
1632 | } else if (auto E = isNotObjectErrorInvalidFileType( |
1633 | ObjOrErr.takeError())) { |
1634 | report_error(Filename, StringRef(), std::move(E), |
1635 | ArchitectureName); |
1636 | continue; |
1637 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
1638 | I->getAsArchive()) { |
1639 | std::unique_ptr<Archive> &A = *AOrErr; |
1640 | outs() << "Archive : " << Filename; |
1641 | if (!ArchitectureName.empty()) |
1642 | outs() << " (architecture " << ArchitectureName << ")"; |
1643 | outs() << "\n"; |
1644 | if (ArchiveHeaders) |
1645 | printArchiveHeaders(Filename, A.get(), !NonVerbose, |
1646 | ArchiveMemberOffsets, ArchitectureName); |
1647 | Error Err = Error::success(); |
1648 | for (auto &C : A->children(Err)) { |
1649 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
1650 | if (!ChildOrErr) { |
1651 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
1652 | report_error(Filename, C, std::move(E), ArchitectureName); |
1653 | continue; |
1654 | } |
1655 | if (MachOObjectFile *O = |
1656 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) |
1657 | ProcessMachO(Filename, O, O->getFileName(), ArchitectureName); |
1658 | } |
1659 | if (Err) |
1660 | report_error(Filename, std::move(Err)); |
1661 | } else { |
1662 | consumeError(AOrErr.takeError()); |
1663 | error("Mach-O universal file: " + Filename + " for " + |
1664 | "architecture " + StringRef(I->getArchFlagName()) + |
1665 | " is not a Mach-O file or an archive file"); |
1666 | } |
1667 | } |
1668 | } |
1669 | if (!ArchFound) { |
1670 | errs() << "llvm-objdump: file: " + Filename + " does not contain " |
1671 | << "architecture: " + ArchFlags[i] + "\n"; |
1672 | return; |
1673 | } |
1674 | } |
1675 | return; |
1676 | } |
1677 | // No architecture flags were specified so if this contains a slice that |
1678 | // matches the host architecture dump only that. |
1679 | if (!ArchAll) { |
1680 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
1681 | E = UB->end_objects(); |
1682 | I != E; ++I) { |
1683 | if (MachOObjectFile::getHostArch().getArchName() == |
1684 | I->getArchFlagName()) { |
1685 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); |
1686 | std::string ArchiveName; |
1687 | ArchiveName.clear(); |
1688 | if (ObjOrErr) { |
1689 | ObjectFile &O = *ObjOrErr.get(); |
1690 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) |
1691 | ProcessMachO(Filename, MachOOF); |
1692 | } else if (auto E = isNotObjectErrorInvalidFileType( |
1693 | ObjOrErr.takeError())) { |
1694 | report_error(Filename, std::move(E)); |
1695 | continue; |
1696 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
1697 | I->getAsArchive()) { |
1698 | std::unique_ptr<Archive> &A = *AOrErr; |
1699 | outs() << "Archive : " << Filename << "\n"; |
1700 | if (ArchiveHeaders) |
1701 | printArchiveHeaders(Filename, A.get(), !NonVerbose, |
1702 | ArchiveMemberOffsets); |
1703 | Error Err = Error::success(); |
1704 | for (auto &C : A->children(Err)) { |
1705 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
1706 | if (!ChildOrErr) { |
1707 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
1708 | report_error(Filename, C, std::move(E)); |
1709 | continue; |
1710 | } |
1711 | if (MachOObjectFile *O = |
1712 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) |
1713 | ProcessMachO(Filename, O, O->getFileName()); |
1714 | } |
1715 | if (Err) |
1716 | report_error(Filename, std::move(Err)); |
1717 | } else { |
1718 | consumeError(AOrErr.takeError()); |
1719 | error("Mach-O universal file: " + Filename + " for architecture " + |
1720 | StringRef(I->getArchFlagName()) + |
1721 | " is not a Mach-O file or an archive file"); |
1722 | } |
1723 | return; |
1724 | } |
1725 | } |
1726 | } |
1727 | // Either all architectures have been specified or none have been specified |
1728 | // and this does not contain the host architecture so dump all the slices. |
1729 | bool moreThanOneArch = UB->getNumberOfObjects() > 1; |
1730 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
1731 | E = UB->end_objects(); |
1732 | I != E; ++I) { |
1733 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); |
1734 | std::string ArchitectureName = ""; |
1735 | if (moreThanOneArch) |
1736 | ArchitectureName = I->getArchFlagName(); |
1737 | if (ObjOrErr) { |
1738 | ObjectFile &Obj = *ObjOrErr.get(); |
1739 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj)) |
1740 | ProcessMachO(Filename, MachOOF, "", ArchitectureName); |
1741 | } else if (auto E = isNotObjectErrorInvalidFileType( |
1742 | ObjOrErr.takeError())) { |
1743 | report_error(StringRef(), Filename, std::move(E), ArchitectureName); |
1744 | continue; |
1745 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
1746 | I->getAsArchive()) { |
1747 | std::unique_ptr<Archive> &A = *AOrErr; |
1748 | outs() << "Archive : " << Filename; |
1749 | if (!ArchitectureName.empty()) |
1750 | outs() << " (architecture " << ArchitectureName << ")"; |
1751 | outs() << "\n"; |
1752 | if (ArchiveHeaders) |
1753 | printArchiveHeaders(Filename, A.get(), !NonVerbose, |
1754 | ArchiveMemberOffsets, ArchitectureName); |
1755 | Error Err = Error::success(); |
1756 | for (auto &C : A->children(Err)) { |
1757 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
1758 | if (!ChildOrErr) { |
1759 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
1760 | report_error(Filename, C, std::move(E), ArchitectureName); |
1761 | continue; |
1762 | } |
1763 | if (MachOObjectFile *O = |
1764 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { |
1765 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O)) |
1766 | ProcessMachO(Filename, MachOOF, MachOOF->getFileName(), |
1767 | ArchitectureName); |
1768 | } |
1769 | } |
1770 | if (Err) |
1771 | report_error(Filename, std::move(Err)); |
1772 | } else { |
1773 | consumeError(AOrErr.takeError()); |
1774 | error("Mach-O universal file: " + Filename + " for architecture " + |
1775 | StringRef(I->getArchFlagName()) + |
1776 | " is not a Mach-O file or an archive file"); |
1777 | } |
1778 | } |
1779 | return; |
1780 | } |
1781 | if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) { |
1782 | if (!checkMachOAndArchFlags(O, Filename)) |
1783 | return; |
1784 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) { |
1785 | ProcessMachO(Filename, MachOOF); |
1786 | } else |
1787 | errs() << "llvm-objdump: '" << Filename << "': " |
1788 | << "Object is not a Mach-O file type.\n"; |
1789 | return; |
1790 | } |
1791 | llvm_unreachable("Input object can't be invalid at this point")::llvm::llvm_unreachable_internal("Input object can't be invalid at this point" , "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/llvm-objdump/MachODump.cpp" , 1791); |
1792 | } |
1793 | |
1794 | // The block of info used by the Symbolizer call backs. |
1795 | struct DisassembleInfo { |
1796 | bool verbose; |
1797 | MachOObjectFile *O; |
1798 | SectionRef S; |
1799 | SymbolAddressMap *AddrMap; |
1800 | std::vector<SectionRef> *Sections; |
1801 | const char *class_name; |
1802 | const char *selector_name; |
1803 | char *method; |
1804 | char *demangled_name; |
1805 | uint64_t adrp_addr; |
1806 | uint32_t adrp_inst; |
1807 | std::unique_ptr<SymbolAddressMap> bindtable; |
1808 | uint32_t depth; |
1809 | }; |
1810 | |
1811 | // SymbolizerGetOpInfo() is the operand information call back function. |
1812 | // This is called to get the symbolic information for operand(s) of an |
1813 | // instruction when it is being done. This routine does this from |
1814 | // the relocation information, symbol table, etc. That block of information |
1815 | // is a pointer to the struct DisassembleInfo that was passed when the |
1816 | // disassembler context was created and passed to back to here when |
1817 | // called back by the disassembler for instruction operands that could have |
1818 | // relocation information. The address of the instruction containing operand is |
1819 | // at the Pc parameter. The immediate value the operand has is passed in |
1820 | // op_info->Value and is at Offset past the start of the instruction and has a |
1821 | // byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the |
1822 | // LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol |
1823 | // names and addends of the symbolic expression to add for the operand. The |
1824 | // value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic |
1825 | // information is returned then this function returns 1 else it returns 0. |
1826 | static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset, |
1827 | uint64_t Size, int TagType, void *TagBuf) { |
1828 | struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; |
1829 | struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf; |
1830 | uint64_t value = op_info->Value; |
1831 | |
1832 | // Make sure all fields returned are zero if we don't set them. |
1833 | memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1)); |
1834 | op_info->Value = value; |
1835 | |
1836 | // If the TagType is not the value 1 which it code knows about or if no |
1837 | // verbose symbolic information is wanted then just return 0, indicating no |
1838 | // information is being returned. |
1839 | if (TagType != 1 || !info->verbose) |
1840 | return 0; |
1841 | |
1842 | unsigned int Arch = info->O->getArch(); |
1843 | if (Arch == Triple::x86) { |
1844 | if (Size != 1 && Size != 2 && Size != 4 && Size != 0) |
1845 | return 0; |
1846 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
1847 | // TODO: |
1848 | // Search the external relocation entries of a fully linked image |
1849 | // (if any) for an entry that matches this segment offset. |
1850 | // uint32_t seg_offset = (Pc + Offset); |
1851 | return 0; |
1852 | } |
1853 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
1854 | // for an entry for this section offset. |
1855 | uint32_t sect_addr = info->S.getAddress(); |
1856 | uint32_t sect_offset = (Pc + Offset) - sect_addr; |
1857 | bool reloc_found = false; |
1858 | DataRefImpl Rel; |
1859 | MachO::any_relocation_info RE; |
1860 | bool isExtern = false; |
1861 | SymbolRef Symbol; |
1862 | bool r_scattered = false; |
1863 | uint32_t r_value, pair_r_value, r_type; |
1864 | for (const RelocationRef &Reloc : info->S.relocations()) { |
1865 | uint64_t RelocOffset = Reloc.getOffset(); |
1866 | if (RelocOffset == sect_offset) { |
1867 | Rel = Reloc.getRawDataRefImpl(); |
1868 | RE = info->O->getRelocation(Rel); |
1869 | r_type = info->O->getAnyRelocationType(RE); |
1870 | r_scattered = info->O->isRelocationScattered(RE); |
1871 | if (r_scattered) { |
1872 | r_value = info->O->getScatteredRelocationValue(RE); |
1873 | if (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
1874 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) { |
1875 | DataRefImpl RelNext = Rel; |
1876 | info->O->moveRelocationNext(RelNext); |
1877 | MachO::any_relocation_info RENext; |
1878 | RENext = info->O->getRelocation(RelNext); |
1879 | if (info->O->isRelocationScattered(RENext)) |
1880 | pair_r_value = info->O->getScatteredRelocationValue(RENext); |
1881 | else |
1882 | return 0; |
1883 | } |
1884 | } else { |
1885 | isExtern = info->O->getPlainRelocationExternal(RE); |
1886 | if (isExtern) { |
1887 | symbol_iterator RelocSym = Reloc.getSymbol(); |
1888 | Symbol = *RelocSym; |
1889 | } |
1890 | } |
1891 | reloc_found = true; |
1892 | break; |
1893 | } |
1894 | } |
1895 | if (reloc_found && isExtern) { |
1896 | Expected<StringRef> SymName = Symbol.getName(); |
1897 | if (!SymName) |
1898 | report_error(info->O->getFileName(), SymName.takeError()); |
1899 | const char *name = SymName->data(); |
1900 | op_info->AddSymbol.Present = 1; |
1901 | op_info->AddSymbol.Name = name; |
1902 | // For i386 extern relocation entries the value in the instruction is |
1903 | // the offset from the symbol, and value is already set in op_info->Value. |
1904 | return 1; |
1905 | } |
1906 | if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
1907 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) { |
1908 | const char *add = GuessSymbolName(r_value, info->AddrMap); |
1909 | const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); |
1910 | uint32_t offset = value - (r_value - pair_r_value); |
1911 | op_info->AddSymbol.Present = 1; |
1912 | if (add != nullptr) |
1913 | op_info->AddSymbol.Name = add; |
1914 | else |
1915 | op_info->AddSymbol.Value = r_value; |
1916 | op_info->SubtractSymbol.Present = 1; |
1917 | if (sub != nullptr) |
1918 | op_info->SubtractSymbol.Name = sub; |
1919 | else |
1920 | op_info->SubtractSymbol.Value = pair_r_value; |
1921 | op_info->Value = offset; |
1922 | return 1; |
1923 | } |
1924 | return 0; |
1925 | } |
1926 | if (Arch == Triple::x86_64) { |
1927 | if (Size != 1 && Size != 2 && Size != 4 && Size != 0) |
1928 | return 0; |
1929 | // For non MH_OBJECT types, like MH_KEXT_BUNDLE, Search the external |
1930 | // relocation entries of a linked image (if any) for an entry that matches |
1931 | // this segment offset. |
1932 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
1933 | uint64_t seg_offset = Pc + Offset; |
1934 | bool reloc_found = false; |
1935 | DataRefImpl Rel; |
1936 | MachO::any_relocation_info RE; |
1937 | bool isExtern = false; |
1938 | SymbolRef Symbol; |
1939 | for (const RelocationRef &Reloc : info->O->external_relocations()) { |
1940 | uint64_t RelocOffset = Reloc.getOffset(); |
1941 | if (RelocOffset == seg_offset) { |
1942 | Rel = Reloc.getRawDataRefImpl(); |
1943 | RE = info->O->getRelocation(Rel); |
1944 | // external relocation entries should always be external. |
1945 | isExtern = info->O->getPlainRelocationExternal(RE); |
1946 | if (isExtern) { |
1947 | symbol_iterator RelocSym = Reloc.getSymbol(); |
1948 | Symbol = *RelocSym; |
1949 | } |
1950 | reloc_found = true; |
1951 | break; |
1952 | } |
1953 | } |
1954 | if (reloc_found && isExtern) { |
1955 | // The Value passed in will be adjusted by the Pc if the instruction |
1956 | // adds the Pc. But for x86_64 external relocation entries the Value |
1957 | // is the offset from the external symbol. |
1958 | if (info->O->getAnyRelocationPCRel(RE)) |
1959 | op_info->Value -= Pc + Offset + Size; |
1960 | Expected<StringRef> SymName = Symbol.getName(); |
1961 | if (!SymName) |
1962 | report_error(info->O->getFileName(), SymName.takeError()); |
1963 | const char *name = SymName->data(); |
1964 | op_info->AddSymbol.Present = 1; |
1965 | op_info->AddSymbol.Name = name; |
1966 | return 1; |
1967 | } |
1968 | return 0; |
1969 | } |
1970 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
1971 | // for an entry for this section offset. |
1972 | uint64_t sect_addr = info->S.getAddress(); |
1973 | uint64_t sect_offset = (Pc + Offset) - sect_addr; |
1974 | bool reloc_found = false; |
1975 | DataRefImpl Rel; |
1976 | MachO::any_relocation_info RE; |
1977 | bool isExtern = false; |
1978 | SymbolRef Symbol; |
1979 | for (const RelocationRef &Reloc : info->S.relocations()) { |
1980 | uint64_t RelocOffset = Reloc.getOffset(); |
1981 | if (RelocOffset == sect_offset) { |
1982 | Rel = Reloc.getRawDataRefImpl(); |
1983 | RE = info->O->getRelocation(Rel); |
1984 | // NOTE: Scattered relocations don't exist on x86_64. |
1985 | isExtern = info->O->getPlainRelocationExternal(RE); |
1986 | if (isExtern) { |
1987 | symbol_iterator RelocSym = Reloc.getSymbol(); |
1988 | Symbol = *RelocSym; |
1989 | } |
1990 | reloc_found = true; |
1991 | break; |
1992 | } |
1993 | } |
1994 | if (reloc_found && isExtern) { |
1995 | // The Value passed in will be adjusted by the Pc if the instruction |
1996 | // adds the Pc. But for x86_64 external relocation entries the Value |
1997 | // is the offset from the external symbol. |
1998 | if (info->O->getAnyRelocationPCRel(RE)) |
1999 | op_info->Value -= Pc + Offset + Size; |
2000 | Expected<StringRef> SymName = Symbol.getName(); |
2001 | if (!SymName) |
2002 | report_error(info->O->getFileName(), SymName.takeError()); |
2003 | const char *name = SymName->data(); |
2004 | unsigned Type = info->O->getAnyRelocationType(RE); |
2005 | if (Type == MachO::X86_64_RELOC_SUBTRACTOR) { |
2006 | DataRefImpl RelNext = Rel; |
2007 | info->O->moveRelocationNext(RelNext); |
2008 | MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); |
2009 | unsigned TypeNext = info->O->getAnyRelocationType(RENext); |
2010 | bool isExternNext = info->O->getPlainRelocationExternal(RENext); |
2011 | unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext); |
2012 | if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) { |
2013 | op_info->SubtractSymbol.Present = 1; |
2014 | op_info->SubtractSymbol.Name = name; |
2015 | symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum); |
2016 | Symbol = *RelocSymNext; |
2017 | Expected<StringRef> SymNameNext = Symbol.getName(); |
2018 | if (!SymNameNext) |
2019 | report_error(info->O->getFileName(), SymNameNext.takeError()); |
2020 | name = SymNameNext->data(); |
2021 | } |
2022 | } |
2023 | // TODO: add the VariantKinds to op_info->VariantKind for relocation types |
2024 | // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT. |
2025 | op_info->AddSymbol.Present = 1; |
2026 | op_info->AddSymbol.Name = name; |
2027 | return 1; |
2028 | } |
2029 | return 0; |
2030 | } |
2031 | if (Arch == Triple::arm) { |
2032 | if (Offset != 0 || (Size != 4 && Size != 2)) |
2033 | return 0; |
2034 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
2035 | // TODO: |
2036 | // Search the external relocation entries of a fully linked image |
2037 | // (if any) for an entry that matches this segment offset. |
2038 | // uint32_t seg_offset = (Pc + Offset); |
2039 | return 0; |
2040 | } |
2041 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
2042 | // for an entry for this section offset. |
2043 | uint32_t sect_addr = info->S.getAddress(); |
2044 | uint32_t sect_offset = (Pc + Offset) - sect_addr; |
2045 | DataRefImpl Rel; |
2046 | MachO::any_relocation_info RE; |
2047 | bool isExtern = false; |
2048 | SymbolRef Symbol; |
2049 | bool r_scattered = false; |
2050 | uint32_t r_value, pair_r_value, r_type, r_length, other_half; |
2051 | auto Reloc = |
2052 | find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { |
2053 | uint64_t RelocOffset = Reloc.getOffset(); |
2054 | return RelocOffset == sect_offset; |
2055 | }); |
2056 | |
2057 | if (Reloc == info->S.relocations().end()) |
2058 | return 0; |
2059 | |
2060 | Rel = Reloc->getRawDataRefImpl(); |
2061 | RE = info->O->getRelocation(Rel); |
2062 | r_length = info->O->getAnyRelocationLength(RE); |
2063 | r_scattered = info->O->isRelocationScattered(RE); |
2064 | if (r_scattered) { |
2065 | r_value = info->O->getScatteredRelocationValue(RE); |
2066 | r_type = info->O->getScatteredRelocationType(RE); |
2067 | } else { |
2068 | r_type = info->O->getAnyRelocationType(RE); |
2069 | isExtern = info->O->getPlainRelocationExternal(RE); |
2070 | if (isExtern) { |
2071 | symbol_iterator RelocSym = Reloc->getSymbol(); |
2072 | Symbol = *RelocSym; |
2073 | } |
2074 | } |
2075 | if (r_type == MachO::ARM_RELOC_HALF || |
2076 | r_type == MachO::ARM_RELOC_SECTDIFF || |
2077 | r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF || |
2078 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
2079 | DataRefImpl RelNext = Rel; |
2080 | info->O->moveRelocationNext(RelNext); |
2081 | MachO::any_relocation_info RENext; |
2082 | RENext = info->O->getRelocation(RelNext); |
2083 | other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff; |
2084 | if (info->O->isRelocationScattered(RENext)) |
2085 | pair_r_value = info->O->getScatteredRelocationValue(RENext); |
2086 | } |
2087 | |
2088 | if (isExtern) { |
2089 | Expected<StringRef> SymName = Symbol.getName(); |
2090 | if (!SymName) |
2091 | report_error(info->O->getFileName(), SymName.takeError()); |
2092 | const char *name = SymName->data(); |
2093 | op_info->AddSymbol.Present = 1; |
2094 | op_info->AddSymbol.Name = name; |
2095 | switch (r_type) { |
2096 | case MachO::ARM_RELOC_HALF: |
2097 | if ((r_length & 0x1) == 1) { |
2098 | op_info->Value = value << 16 | other_half; |
2099 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
2100 | } else { |
2101 | op_info->Value = other_half << 16 | value; |
2102 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
2103 | } |
2104 | break; |
2105 | default: |
2106 | break; |
2107 | } |
2108 | return 1; |
2109 | } |
2110 | // If we have a branch that is not an external relocation entry then |
2111 | // return 0 so the code in tryAddingSymbolicOperand() can use the |
2112 | // SymbolLookUp call back with the branch target address to look up the |
2113 | // symbol and possibility add an annotation for a symbol stub. |
2114 | if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 || |
2115 | r_type == MachO::ARM_THUMB_RELOC_BR22)) |
2116 | return 0; |
2117 | |
2118 | uint32_t offset = 0; |
2119 | if (r_type == MachO::ARM_RELOC_HALF || |
2120 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
2121 | if ((r_length & 0x1) == 1) |
2122 | value = value << 16 | other_half; |
2123 | else |
2124 | value = other_half << 16 | value; |
2125 | } |
2126 | if (r_scattered && (r_type != MachO::ARM_RELOC_HALF && |
2127 | r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) { |
2128 | offset = value - r_value; |
2129 | value = r_value; |
2130 | } |
2131 | |
2132 | if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
2133 | if ((r_length & 0x1) == 1) |
2134 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
2135 | else |
2136 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
2137 | const char *add = GuessSymbolName(r_value, info->AddrMap); |
2138 | const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); |
2139 | int32_t offset = value - (r_value - pair_r_value); |
2140 | op_info->AddSymbol.Present = 1; |
2141 | if (add != nullptr) |
2142 | op_info->AddSymbol.Name = add; |
2143 | else |
2144 | op_info->AddSymbol.Value = r_value; |
2145 | op_info->SubtractSymbol.Present = 1; |
2146 | if (sub != nullptr) |
2147 | op_info->SubtractSymbol.Name = sub; |
2148 | else |
2149 | op_info->SubtractSymbol.Value = pair_r_value; |
2150 | op_info->Value = offset; |
2151 | return 1; |
2152 | } |
2153 | |
2154 | op_info->AddSymbol.Present = 1; |
2155 | op_info->Value = offset; |
2156 | if (r_type == MachO::ARM_RELOC_HALF) { |
2157 | if ((r_length & 0x1) == 1) |
2158 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
2159 | else |
2160 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
2161 | } |
2162 | const char *add = GuessSymbolName(value, info->AddrMap); |
2163 | if (add != nullptr) { |
2164 | op_info->AddSymbol.Name = add; |
2165 | return 1; |
2166 | } |
2167 | op_info->AddSymbol.Value = value; |
2168 | return 1; |
2169 | } |
2170 | if (Arch == Triple::aarch64) { |
2171 | if (Offset != 0 || Size != 4) |
2172 | return 0; |
2173 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
2174 | // TODO: |
2175 | // Search the external relocation entries of a fully linked image |
2176 | // (if any) for an entry that matches this segment offset. |
2177 | // uint64_t seg_offset = (Pc + Offset); |
2178 | return 0; |
2179 | } |
2180 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
2181 | // for an entry for this section offset. |
2182 | uint64_t sect_addr = info->S.getAddress(); |
2183 | uint64_t sect_offset = (Pc + Offset) - sect_addr; |
2184 | auto Reloc = |
2185 | find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { |
2186 | uint64_t RelocOffset = Reloc.getOffset(); |
2187 | return RelocOffset == sect_offset; |
2188 | }); |
2189 | |
2190 | if (Reloc == info->S.relocations().end()) |
2191 | return 0; |
2192 | |
2193 | DataRefImpl Rel = Reloc->getRawDataRefImpl(); |
2194 | MachO::any_relocation_info RE = info->O->getRelocation(Rel); |
2195 | uint32_t r_type = info->O->getAnyRelocationType(RE); |
2196 | if (r_type == MachO::ARM64_RELOC_ADDEND) { |
2197 | DataRefImpl RelNext = Rel; |
2198 | info->O->moveRelocationNext(RelNext); |
2199 | MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); |
2200 | if (value == 0) { |
2201 | value = info->O->getPlainRelocationSymbolNum(RENext); |
2202 | op_info->Value = value; |
2203 | } |
2204 | } |
2205 | // NOTE: Scattered relocations don't exist on arm64. |
2206 | if (!info->O->getPlainRelocationExternal(RE)) |
2207 | return 0; |
2208 | Expected<StringRef> SymName = Reloc->getSymbol()->getName(); |
2209 | if (!SymName) |
2210 | report_error(info->O->getFileName(), SymName.takeError()); |
2211 | const char *name = SymName->data(); |
2212 | op_info->AddSymbol.Present = 1; |
2213 | op_info->AddSymbol.Name = name; |
2214 | |
2215 | switch (r_type) { |
2216 | case MachO::ARM64_RELOC_PAGE21: |
2217 | /* @page */ |
2218 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE1; |
2219 | break; |
2220 | case MachO::ARM64_RELOC_PAGEOFF12: |
2221 | /* @pageoff */ |
2222 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF2; |
2223 | break; |
2224 | case MachO::ARM64_RELOC_GOT_LOAD_PAGE21: |
2225 | /* @gotpage */ |
2226 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE3; |
2227 | break; |
2228 | case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12: |
2229 | /* @gotpageoff */ |
2230 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF4; |
2231 | break; |
2232 | case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21: |
2233 | /* @tvlppage is not implemented in llvm-mc */ |
2234 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP5; |
2235 | break; |
2236 | case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12: |
2237 | /* @tvlppageoff is not implemented in llvm-mc */ |
2238 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF6; |
2239 | break; |
2240 | default: |
2241 | case MachO::ARM64_RELOC_BRANCH26: |
2242 | op_info->VariantKind = LLVMDisassembler_VariantKind_None0; |
2243 | break; |
2244 | } |
2245 | return 1; |
2246 | } |
2247 | return 0; |
2248 | } |
2249 | |
2250 | // GuessCstringPointer is passed the address of what might be a pointer to a |
2251 | // literal string in a cstring section. If that address is in a cstring section |
2252 | // it returns a pointer to that string. Else it returns nullptr. |
2253 | static const char *GuessCstringPointer(uint64_t ReferenceValue, |
2254 | struct DisassembleInfo *info) { |
2255 | for (const auto &Load : info->O->load_commands()) { |
2256 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
2257 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
2258 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2259 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
2260 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2261 | if (section_type == MachO::S_CSTRING_LITERALS && |
2262 | ReferenceValue >= Sec.addr && |
2263 | ReferenceValue < Sec.addr + Sec.size) { |
2264 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
2265 | uint64_t object_offset = Sec.offset + sect_offset; |
2266 | StringRef MachOContents = info->O->getData(); |
2267 | uint64_t object_size = MachOContents.size(); |
2268 | const char *object_addr = (const char *)MachOContents.data(); |
2269 | if (object_offset < object_size) { |
2270 | const char *name = object_addr + object_offset; |
2271 | return name; |
2272 | } else { |
2273 | return nullptr; |
2274 | } |
2275 | } |
2276 | } |
2277 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
2278 | MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); |
2279 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2280 | MachO::section Sec = info->O->getSection(Load, J); |
2281 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2282 | if (section_type == MachO::S_CSTRING_LITERALS && |
2283 | ReferenceValue >= Sec.addr && |
2284 | ReferenceValue < Sec.addr + Sec.size) { |
2285 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
2286 | uint64_t object_offset = Sec.offset + sect_offset; |
2287 | StringRef MachOContents = info->O->getData(); |
2288 | uint64_t object_size = MachOContents.size(); |
2289 | const char *object_addr = (const char *)MachOContents.data(); |
2290 | if (object_offset < object_size) { |
2291 | const char *name = object_addr + object_offset; |
2292 | return name; |
2293 | } else { |
2294 | return nullptr; |
2295 | } |
2296 | } |
2297 | } |
2298 | } |
2299 | } |
2300 | return nullptr; |
2301 | } |
2302 | |
2303 | // GuessIndirectSymbol returns the name of the indirect symbol for the |
2304 | // ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe |
2305 | // an address of a symbol stub or a lazy or non-lazy pointer to associate the |
2306 | // symbol name being referenced by the stub or pointer. |
2307 | static const char *GuessIndirectSymbol(uint64_t ReferenceValue, |
2308 | struct DisassembleInfo *info) { |
2309 | MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand(); |
2310 | MachO::symtab_command Symtab = info->O->getSymtabLoadCommand(); |
2311 | for (const auto &Load : info->O->load_commands()) { |
2312 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
2313 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
2314 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2315 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
2316 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2317 | if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
2318 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
2319 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
2320 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
2321 | section_type == MachO::S_SYMBOL_STUBS) && |
2322 | ReferenceValue >= Sec.addr && |
2323 | ReferenceValue < Sec.addr + Sec.size) { |
2324 | uint32_t stride; |
2325 | if (section_type == MachO::S_SYMBOL_STUBS) |
2326 | stride = Sec.reserved2; |
2327 | else |
2328 | stride = 8; |
2329 | if (stride == 0) |
2330 | return nullptr; |
2331 | uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; |
2332 | if (index < Dysymtab.nindirectsyms) { |
2333 | uint32_t indirect_symbol = |
2334 | info->O->getIndirectSymbolTableEntry(Dysymtab, index); |
2335 | if (indirect_symbol < Symtab.nsyms) { |
2336 | symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); |
2337 | SymbolRef Symbol = *Sym; |
2338 | Expected<StringRef> SymName = Symbol.getName(); |
2339 | if (!SymName) |
2340 | report_error(info->O->getFileName(), SymName.takeError()); |
2341 | const char *name = SymName->data(); |
2342 | return name; |
2343 | } |
2344 | } |
2345 | } |
2346 | } |
2347 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
2348 | MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); |
2349 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2350 | MachO::section Sec = info->O->getSection(Load, J); |
2351 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2352 | if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
2353 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
2354 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
2355 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
2356 | section_type == MachO::S_SYMBOL_STUBS) && |
2357 | ReferenceValue >= Sec.addr && |
2358 | ReferenceValue < Sec.addr + Sec.size) { |
2359 | uint32_t stride; |
2360 | if (section_type == MachO::S_SYMBOL_STUBS) |
2361 | stride = Sec.reserved2; |
2362 | else |
2363 | stride = 4; |
2364 | if (stride == 0) |
2365 | return nullptr; |
2366 | uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; |
2367 | if (index < Dysymtab.nindirectsyms) { |
2368 | uint32_t indirect_symbol = |
2369 | info->O->getIndirectSymbolTableEntry(Dysymtab, index); |
2370 | if (indirect_symbol < Symtab.nsyms) { |
2371 | symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); |
2372 | SymbolRef Symbol = *Sym; |
2373 | Expected<StringRef> SymName = Symbol.getName(); |
2374 | if (!SymName) |
2375 | report_error(info->O->getFileName(), SymName.takeError()); |
2376 | const char *name = SymName->data(); |
2377 | return name; |
2378 | } |
2379 | } |
2380 | } |
2381 | } |
2382 | } |
2383 | } |
2384 | return nullptr; |
2385 | } |
2386 | |
2387 | // method_reference() is called passing it the ReferenceName that might be |
2388 | // a reference it to an Objective-C method call. If so then it allocates and |
2389 | // assembles a method call string with the values last seen and saved in |
2390 | // the DisassembleInfo's class_name and selector_name fields. This is saved |
2391 | // into the method field of the info and any previous string is free'ed. |
2392 | // Then the class_name field in the info is set to nullptr. The method call |
2393 | // string is set into ReferenceName and ReferenceType is set to |
2394 | // LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call |
2395 | // then both ReferenceType and ReferenceName are left unchanged. |
2396 | static void method_reference(struct DisassembleInfo *info, |
2397 | uint64_t *ReferenceType, |
2398 | const char **ReferenceName) { |
2399 | unsigned int Arch = info->O->getArch(); |
2400 | if (*ReferenceName != nullptr) { |
2401 | if (strcmp(*ReferenceName, "_objc_msgSend") == 0) { |
2402 | if (info->selector_name != nullptr) { |
2403 | if (info->method != nullptr) |
2404 | free(info->method); |
2405 | if (info->class_name != nullptr) { |
2406 | info->method = (char *)malloc(5 + strlen(info->class_name) + |
2407 | strlen(info->selector_name)); |
2408 | if (info->method != nullptr) { |
2409 | strcpy(info->method, "+["); |
2410 | strcat(info->method, info->class_name); |
2411 | strcat(info->method, " "); |
2412 | strcat(info->method, info->selector_name); |
2413 | strcat(info->method, "]"); |
2414 | *ReferenceName = info->method; |
2415 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
2416 | } |
2417 | } else { |
2418 | info->method = (char *)malloc(9 + strlen(info->selector_name)); |
2419 | if (info->method != nullptr) { |
2420 | if (Arch == Triple::x86_64) |
2421 | strcpy(info->method, "-[%rdi "); |
2422 | else if (Arch == Triple::aarch64) |
2423 | strcpy(info->method, "-[x0 "); |
2424 | else |
2425 | strcpy(info->method, "-[r? "); |
2426 | strcat(info->method, info->selector_name); |
2427 | strcat(info->method, "]"); |
2428 | *ReferenceName = info->method; |
2429 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
2430 | } |
2431 | } |
2432 | info->class_name = nullptr; |
2433 | } |
2434 | } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) { |
2435 | if (info->selector_name != nullptr) { |
2436 | if (info->method != nullptr) |
2437 | free(info->method); |
2438 | info->method = (char *)malloc(17 + strlen(info->selector_name)); |
2439 | if (info->method != nullptr) { |
2440 | if (Arch == Triple::x86_64) |
2441 | strcpy(info->method, "-[[%rdi super] "); |
2442 | else if (Arch == Triple::aarch64) |
2443 | strcpy(info->method, "-[[x0 super] "); |
2444 | else |
2445 | strcpy(info->method, "-[[r? super] "); |
2446 | strcat(info->method, info->selector_name); |
2447 | strcat(info->method, "]"); |
2448 | *ReferenceName = info->method; |
2449 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
2450 | } |
2451 | info->class_name = nullptr; |
2452 | } |
2453 | } |
2454 | } |
2455 | } |
2456 | |
2457 | // GuessPointerPointer() is passed the address of what might be a pointer to |
2458 | // a reference to an Objective-C class, selector, message ref or cfstring. |
2459 | // If so the value of the pointer is returned and one of the booleans are set |
2460 | // to true. If not zero is returned and all the booleans are set to false. |
2461 | static uint64_t GuessPointerPointer(uint64_t ReferenceValue, |
2462 | struct DisassembleInfo *info, |
2463 | bool &classref, bool &selref, bool &msgref, |
2464 | bool &cfstring) { |
2465 | classref = false; |
2466 | selref = false; |
2467 | msgref = false; |
2468 | cfstring = false; |
2469 | for (const auto &Load : info->O->load_commands()) { |
2470 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
2471 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
2472 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2473 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
2474 | if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 || |
2475 | strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || |
2476 | strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 || |
2477 | strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 || |
2478 | strncmp(Sec.sectname, "__cfstring", 16) == 0) && |
2479 | ReferenceValue >= Sec.addr && |
2480 | ReferenceValue < Sec.addr + Sec.size) { |
2481 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
2482 | uint64_t object_offset = Sec.offset + sect_offset; |
2483 | StringRef MachOContents = info->O->getData(); |
2484 | uint64_t object_size = MachOContents.size(); |
2485 | const char *object_addr = (const char *)MachOContents.data(); |
2486 | if (object_offset < object_size) { |
2487 | uint64_t pointer_value; |
2488 | memcpy(&pointer_value, object_addr + object_offset, |
2489 | sizeof(uint64_t)); |
2490 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
2491 | sys::swapByteOrder(pointer_value); |
2492 | if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0) |
2493 | selref = true; |
2494 | else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || |
2495 | strncmp(Sec.sectname, "__objc_superrefs", 16) == 0) |
2496 | classref = true; |
2497 | else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 && |
2498 | ReferenceValue + 8 < Sec.addr + Sec.size) { |
2499 | msgref = true; |
2500 | memcpy(&pointer_value, object_addr + object_offset + 8, |
2501 | sizeof(uint64_t)); |
2502 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
2503 | sys::swapByteOrder(pointer_value); |
2504 | } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0) |
2505 | cfstring = true; |
2506 | return pointer_value; |
2507 | } else { |
2508 | return 0; |
2509 | } |
2510 | } |
2511 | } |
2512 | } |
2513 | // TODO: Look for LC_SEGMENT for 32-bit Mach-O files. |
2514 | } |
2515 | return 0; |
2516 | } |
2517 | |
2518 | // get_pointer_64 returns a pointer to the bytes in the object file at the |
2519 | // Address from a section in the Mach-O file. And indirectly returns the |
2520 | // offset into the section, number of bytes left in the section past the offset |
2521 | // and which section is was being referenced. If the Address is not in a |
2522 | // section nullptr is returned. |
2523 | static const char *get_pointer_64(uint64_t Address, uint32_t &offset, |
2524 | uint32_t &left, SectionRef &S, |
2525 | DisassembleInfo *info, |
2526 | bool objc_only = false) { |
2527 | offset = 0; |
2528 | left = 0; |
2529 | S = SectionRef(); |
2530 | for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) { |
2531 | uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress(); |
2532 | uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize(); |
2533 | if (SectSize == 0) |
2534 | continue; |
2535 | if (objc_only) { |
2536 | StringRef SectName; |
2537 | ((*(info->Sections))[SectIdx]).getName(SectName); |
2538 | DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl(); |
2539 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
2540 | if (SegName != "__OBJC" && SectName != "__cstring") |
2541 | continue; |
2542 | } |
2543 | if (Address >= SectAddress && Address < SectAddress + SectSize) { |
2544 | S = (*(info->Sections))[SectIdx]; |
2545 | offset = Address - SectAddress; |
2546 | left = SectSize - offset; |
2547 | StringRef SectContents; |
2548 | ((*(info->Sections))[SectIdx]).getContents(SectContents); |
2549 | return SectContents.data() + offset; |
2550 | } |
2551 | } |
2552 | return nullptr; |
2553 | } |
2554 | |
2555 | static const char *get_pointer_32(uint32_t Address, uint32_t &offset, |
2556 | uint32_t &left, SectionRef &S, |
2557 | DisassembleInfo *info, |
2558 | bool objc_only = false) { |
2559 | return get_pointer_64(Address, offset, left, S, info, objc_only); |
2560 | } |
2561 | |
2562 | // get_symbol_64() returns the name of a symbol (or nullptr) and the address of |
2563 | // the symbol indirectly through n_value. Based on the relocation information |
2564 | // for the specified section offset in the specified section reference. |
2565 | // If no relocation information is found and a non-zero ReferenceValue for the |
2566 | // symbol is passed, look up that address in the info's AddrMap. |
2567 | static const char *get_symbol_64(uint32_t sect_offset, SectionRef S, |
2568 | DisassembleInfo *info, uint64_t &n_value, |
2569 | uint64_t ReferenceValue = 0) { |
2570 | n_value = 0; |
2571 | if (!info->verbose) |
2572 | return nullptr; |
2573 | |
2574 | // See if there is an external relocation entry at the sect_offset. |
2575 | bool reloc_found = false; |
2576 | DataRefImpl Rel; |
2577 | MachO::any_relocation_info RE; |
2578 | bool isExtern = false; |
2579 | SymbolRef Symbol; |
2580 | for (const RelocationRef &Reloc : S.relocations()) { |
2581 | uint64_t RelocOffset = Reloc.getOffset(); |
2582 | if (RelocOffset == sect_offset) { |
2583 | Rel = Reloc.getRawDataRefImpl(); |
2584 | RE = info->O->getRelocation(Rel); |
2585 | if (info->O->isRelocationScattered(RE)) |
2586 | continue; |
2587 | isExtern = info->O->getPlainRelocationExternal(RE); |
2588 | if (isExtern) { |
2589 | symbol_iterator RelocSym = Reloc.getSymbol(); |
2590 | Symbol = *RelocSym; |
2591 | } |
2592 | reloc_found = true; |
2593 | break; |
2594 | } |
2595 | } |
2596 | // If there is an external relocation entry for a symbol in this section |
2597 | // at this section_offset then use that symbol's value for the n_value |
2598 | // and return its name. |
2599 | const char *SymbolName = nullptr; |
2600 | if (reloc_found && isExtern) { |
2601 | n_value = Symbol.getValue(); |
2602 | Expected<StringRef> NameOrError = Symbol.getName(); |
2603 | if (!NameOrError) |
2604 | report_error(info->O->getFileName(), NameOrError.takeError()); |
2605 | StringRef Name = *NameOrError; |
2606 | if (!Name.empty()) { |
2607 | SymbolName = Name.data(); |
2608 | return SymbolName; |
2609 | } |
2610 | } |
2611 | |
2612 | // TODO: For fully linked images, look through the external relocation |
2613 | // entries off the dynamic symtab command. For these the r_offset is from the |
2614 | // start of the first writeable segment in the Mach-O file. So the offset |
2615 | // to this section from that segment is passed to this routine by the caller, |
2616 | // as the database_offset. Which is the difference of the section's starting |
2617 | // address and the first writable segment. |
2618 | // |
2619 | // NOTE: need add passing the database_offset to this routine. |
2620 | |
2621 | // We did not find an external relocation entry so look up the ReferenceValue |
2622 | // as an address of a symbol and if found return that symbol's name. |
2623 | SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); |
2624 | |
2625 | return SymbolName; |
2626 | } |
2627 | |
2628 | static const char *get_symbol_32(uint32_t sect_offset, SectionRef S, |
2629 | DisassembleInfo *info, |
2630 | uint32_t ReferenceValue) { |
2631 | uint64_t n_value64; |
2632 | return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue); |
2633 | } |
2634 | |
2635 | // These are structs in the Objective-C meta data and read to produce the |
2636 | // comments for disassembly. While these are part of the ABI they are no |
2637 | // public defintions. So the are here not in include/llvm/BinaryFormat/MachO.h |
2638 | // . |
2639 | |
2640 | // The cfstring object in a 64-bit Mach-O file. |
2641 | struct cfstring64_t { |
2642 | uint64_t isa; // class64_t * (64-bit pointer) |
2643 | uint64_t flags; // flag bits |
2644 | uint64_t characters; // char * (64-bit pointer) |
2645 | uint64_t length; // number of non-NULL characters in above |
2646 | }; |
2647 | |
2648 | // The class object in a 64-bit Mach-O file. |
2649 | struct class64_t { |
2650 | uint64_t isa; // class64_t * (64-bit pointer) |
2651 | uint64_t superclass; // class64_t * (64-bit pointer) |
2652 | uint64_t cache; // Cache (64-bit pointer) |
2653 | uint64_t vtable; // IMP * (64-bit pointer) |
2654 | uint64_t data; // class_ro64_t * (64-bit pointer) |
2655 | }; |
2656 | |
2657 | struct class32_t { |
2658 | uint32_t isa; /* class32_t * (32-bit pointer) */ |
2659 | uint32_t superclass; /* class32_t * (32-bit pointer) */ |
2660 | uint32_t cache; /* Cache (32-bit pointer) */ |
2661 | uint32_t vtable; /* IMP * (32-bit pointer) */ |
2662 | uint32_t data; /* class_ro32_t * (32-bit pointer) */ |
2663 | }; |
2664 | |
2665 | struct class_ro64_t { |
2666 | uint32_t flags; |
2667 | uint32_t instanceStart; |
2668 | uint32_t instanceSize; |
2669 | uint32_t reserved; |
2670 | uint64_t ivarLayout; // const uint8_t * (64-bit pointer) |
2671 | uint64_t name; // const char * (64-bit pointer) |
2672 | uint64_t baseMethods; // const method_list_t * (64-bit pointer) |
2673 | uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer) |
2674 | uint64_t ivars; // const ivar_list_t * (64-bit pointer) |
2675 | uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer) |
2676 | uint64_t baseProperties; // const struct objc_property_list (64-bit pointer) |
2677 | }; |
2678 | |
2679 | struct class_ro32_t { |
2680 | uint32_t flags; |
2681 | uint32_t instanceStart; |
2682 | uint32_t instanceSize; |
2683 | uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */ |
2684 | uint32_t name; /* const char * (32-bit pointer) */ |
2685 | uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */ |
2686 | uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */ |
2687 | uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */ |
2688 | uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */ |
2689 | uint32_t baseProperties; /* const struct objc_property_list * |
2690 | (32-bit pointer) */ |
2691 | }; |
2692 | |
2693 | /* Values for class_ro{64,32}_t->flags */ |
2694 | #define RO_META(1 << 0) (1 << 0) |
2695 | #define RO_ROOT(1 << 1) (1 << 1) |
2696 | #define RO_HAS_CXX_STRUCTORS(1 << 2) (1 << 2) |
2697 | |
2698 | struct method_list64_t { |
2699 | uint32_t entsize; |
2700 | uint32_t count; |
2701 | /* struct method64_t first; These structures follow inline */ |
2702 | }; |
2703 | |
2704 | struct method_list32_t { |
2705 | uint32_t entsize; |
2706 | uint32_t count; |
2707 | /* struct method32_t first; These structures follow inline */ |
2708 | }; |
2709 | |
2710 | struct method64_t { |
2711 | uint64_t name; /* SEL (64-bit pointer) */ |
2712 | uint64_t types; /* const char * (64-bit pointer) */ |
2713 | uint64_t imp; /* IMP (64-bit pointer) */ |
2714 | }; |
2715 | |
2716 | struct method32_t { |
2717 | uint32_t name; /* SEL (32-bit pointer) */ |
2718 | uint32_t types; /* const char * (32-bit pointer) */ |
2719 | uint32_t imp; /* IMP (32-bit pointer) */ |
2720 | }; |
2721 | |
2722 | struct protocol_list64_t { |
2723 | uint64_t count; /* uintptr_t (a 64-bit value) */ |
2724 | /* struct protocol64_t * list[0]; These pointers follow inline */ |
2725 | }; |
2726 | |
2727 | struct protocol_list32_t { |
2728 | uint32_t count; /* uintptr_t (a 32-bit value) */ |
2729 | /* struct protocol32_t * list[0]; These pointers follow inline */ |
2730 | }; |
2731 | |
2732 | struct protocol64_t { |
2733 | uint64_t isa; /* id * (64-bit pointer) */ |
2734 | uint64_t name; /* const char * (64-bit pointer) */ |
2735 | uint64_t protocols; /* struct protocol_list64_t * |
2736 | (64-bit pointer) */ |
2737 | uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */ |
2738 | uint64_t classMethods; /* method_list_t * (64-bit pointer) */ |
2739 | uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */ |
2740 | uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */ |
2741 | uint64_t instanceProperties; /* struct objc_property_list * |
2742 | (64-bit pointer) */ |
2743 | }; |
2744 | |
2745 | struct protocol32_t { |
2746 | uint32_t isa; /* id * (32-bit pointer) */ |
2747 | uint32_t name; /* const char * (32-bit pointer) */ |
2748 | uint32_t protocols; /* struct protocol_list_t * |
2749 | (32-bit pointer) */ |
2750 | uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */ |
2751 | uint32_t classMethods; /* method_list_t * (32-bit pointer) */ |
2752 | uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */ |
2753 | uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */ |
2754 | uint32_t instanceProperties; /* struct objc_property_list * |
2755 | (32-bit pointer) */ |
2756 | }; |
2757 | |
2758 | struct ivar_list64_t { |
2759 | uint32_t entsize; |
2760 | uint32_t count; |
2761 | /* struct ivar64_t first; These structures follow inline */ |
2762 | }; |
2763 | |
2764 | struct ivar_list32_t { |
2765 | uint32_t entsize; |
2766 | uint32_t count; |
2767 | /* struct ivar32_t first; These structures follow inline */ |
2768 | }; |
2769 | |
2770 | struct ivar64_t { |
2771 | uint64_t offset; /* uintptr_t * (64-bit pointer) */ |
2772 | uint64_t name; /* const char * (64-bit pointer) */ |
2773 | uint64_t type; /* const char * (64-bit pointer) */ |
2774 | uint32_t alignment; |
2775 | uint32_t size; |
2776 | }; |
2777 | |
2778 | struct ivar32_t { |
2779 | uint32_t offset; /* uintptr_t * (32-bit pointer) */ |
2780 | uint32_t name; /* const char * (32-bit pointer) */ |
2781 | uint32_t type; /* const char * (32-bit pointer) */ |
2782 | uint32_t alignment; |
2783 | uint32_t size; |
2784 | }; |
2785 | |
2786 | struct objc_property_list64 { |
2787 | uint32_t entsize; |
2788 | uint32_t count; |
2789 | /* struct objc_property64 first; These structures follow inline */ |
2790 | }; |
2791 | |
2792 | struct objc_property_list32 { |
2793 | uint32_t entsize; |
2794 | uint32_t count; |
2795 | /* struct objc_property32 first; These structures follow inline */ |
2796 | }; |
2797 | |
2798 | struct objc_property64 { |
2799 | uint64_t name; /* const char * (64-bit pointer) */ |
2800 | uint64_t attributes; /* const char * (64-bit pointer) */ |
2801 | }; |
2802 | |
2803 | struct objc_property32 { |
2804 | uint32_t name; /* const char * (32-bit pointer) */ |
2805 | uint32_t attributes; /* const char * (32-bit pointer) */ |
2806 | }; |
2807 | |
2808 | struct category64_t { |
2809 | uint64_t name; /* const char * (64-bit pointer) */ |
2810 | uint64_t cls; /* struct class_t * (64-bit pointer) */ |
2811 | uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */ |
2812 | uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */ |
2813 | uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */ |
2814 | uint64_t instanceProperties; /* struct objc_property_list * |
2815 | (64-bit pointer) */ |
2816 | }; |
2817 | |
2818 | struct category32_t { |
2819 | uint32_t name; /* const char * (32-bit pointer) */ |
2820 | uint32_t cls; /* struct class_t * (32-bit pointer) */ |
2821 | uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */ |
2822 | uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */ |
2823 | uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */ |
2824 | uint32_t instanceProperties; /* struct objc_property_list * |
2825 | (32-bit pointer) */ |
2826 | }; |
2827 | |
2828 | struct objc_image_info64 { |
2829 | uint32_t version; |
2830 | uint32_t flags; |
2831 | }; |
2832 | struct objc_image_info32 { |
2833 | uint32_t version; |
2834 | uint32_t flags; |
2835 | }; |
2836 | struct imageInfo_t { |
2837 | uint32_t version; |
2838 | uint32_t flags; |
2839 | }; |
2840 | /* masks for objc_image_info.flags */ |
2841 | #define OBJC_IMAGE_IS_REPLACEMENT(1 << 0) (1 << 0) |
2842 | #define OBJC_IMAGE_SUPPORTS_GC(1 << 1) (1 << 1) |
2843 | |
2844 | struct message_ref64 { |
2845 | uint64_t imp; /* IMP (64-bit pointer) */ |
2846 | uint64_t sel; /* SEL (64-bit pointer) */ |
2847 | }; |
2848 | |
2849 | struct message_ref32 { |
2850 | uint32_t imp; /* IMP (32-bit pointer) */ |
2851 | uint32_t sel; /* SEL (32-bit pointer) */ |
2852 | }; |
2853 | |
2854 | // Objective-C 1 (32-bit only) meta data structs. |
2855 | |
2856 | struct objc_module_t { |
2857 | uint32_t version; |
2858 | uint32_t size; |
2859 | uint32_t name; /* char * (32-bit pointer) */ |
2860 | uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */ |
2861 | }; |
2862 | |
2863 | struct objc_symtab_t { |
2864 | uint32_t sel_ref_cnt; |
2865 | uint32_t refs; /* SEL * (32-bit pointer) */ |
2866 | uint16_t cls_def_cnt; |
2867 | uint16_t cat_def_cnt; |
2868 | // uint32_t defs[1]; /* void * (32-bit pointer) variable size */ |
2869 | }; |
2870 | |
2871 | struct objc_class_t { |
2872 | uint32_t isa; /* struct objc_class * (32-bit pointer) */ |
2873 | uint32_t super_class; /* struct objc_class * (32-bit pointer) */ |
2874 | uint32_t name; /* const char * (32-bit pointer) */ |
2875 | int32_t version; |
2876 | int32_t info; |
2877 | int32_t instance_size; |
2878 | uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */ |
2879 | uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */ |
2880 | uint32_t cache; /* struct objc_cache * (32-bit pointer) */ |
2881 | uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */ |
2882 | }; |
2883 | |
2884 | #define CLS_GETINFO(cls, infomask)((cls)->info & (infomask)) ((cls)->info & (infomask)) |
2885 | // class is not a metaclass |
2886 | #define CLS_CLASS0x1 0x1 |
2887 | // class is a metaclass |
2888 | #define CLS_META0x2 0x2 |
2889 | |
2890 | struct objc_category_t { |
2891 | uint32_t category_name; /* char * (32-bit pointer) */ |
2892 | uint32_t class_name; /* char * (32-bit pointer) */ |
2893 | uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */ |
2894 | uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */ |
2895 | uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */ |
2896 | }; |
2897 | |
2898 | struct objc_ivar_t { |
2899 | uint32_t ivar_name; /* char * (32-bit pointer) */ |
2900 | uint32_t ivar_type; /* char * (32-bit pointer) */ |
2901 | int32_t ivar_offset; |
2902 | }; |
2903 | |
2904 | struct objc_ivar_list_t { |
2905 | int32_t ivar_count; |
2906 | // struct objc_ivar_t ivar_list[1]; /* variable length structure */ |
2907 | }; |
2908 | |
2909 | struct objc_method_list_t { |
2910 | uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */ |
2911 | int32_t method_count; |
2912 | // struct objc_method_t method_list[1]; /* variable length structure */ |
2913 | }; |
2914 | |
2915 | struct objc_method_t { |
2916 | uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */ |
2917 | uint32_t method_types; /* char * (32-bit pointer) */ |
2918 | uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...) |
2919 | (32-bit pointer) */ |
2920 | }; |
2921 | |
2922 | struct objc_protocol_list_t { |
2923 | uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */ |
2924 | int32_t count; |
2925 | // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t * |
2926 | // (32-bit pointer) */ |
2927 | }; |
2928 | |
2929 | struct objc_protocol_t { |
2930 | uint32_t isa; /* struct objc_class * (32-bit pointer) */ |
2931 | uint32_t protocol_name; /* char * (32-bit pointer) */ |
2932 | uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */ |
2933 | uint32_t instance_methods; /* struct objc_method_description_list * |
2934 | (32-bit pointer) */ |
2935 | uint32_t class_methods; /* struct objc_method_description_list * |
2936 | (32-bit pointer) */ |
2937 | }; |
2938 | |
2939 | struct objc_method_description_list_t { |
2940 | int32_t count; |
2941 | // struct objc_method_description_t list[1]; |
2942 | }; |
2943 | |
2944 | struct objc_method_description_t { |
2945 | uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */ |
2946 | uint32_t types; /* char * (32-bit pointer) */ |
2947 | }; |
2948 | |
2949 | inline void swapStruct(struct cfstring64_t &cfs) { |
2950 | sys::swapByteOrder(cfs.isa); |
2951 | sys::swapByteOrder(cfs.flags); |
2952 | sys::swapByteOrder(cfs.characters); |
2953 | sys::swapByteOrder(cfs.length); |
2954 | } |
2955 | |
2956 | inline void swapStruct(struct class64_t &c) { |
2957 | sys::swapByteOrder(c.isa); |
2958 | sys::swapByteOrder(c.superclass); |
2959 | sys::swapByteOrder(c.cache); |
2960 | sys::swapByteOrder(c.vtable); |
2961 | sys::swapByteOrder(c.data); |
2962 | } |
2963 | |
2964 | inline void swapStruct(struct class32_t &c) { |
2965 | sys::swapByteOrder(c.isa); |
2966 | sys::swapByteOrder(c.superclass); |
2967 | sys::swapByteOrder(c.cache); |
2968 | sys::swapByteOrder(c.vtable); |
2969 | sys::swapByteOrder(c.data); |
2970 | } |
2971 | |
2972 | inline void swapStruct(struct class_ro64_t &cro) { |
2973 | sys::swapByteOrder(cro.flags); |
2974 | sys::swapByteOrder(cro.instanceStart); |
2975 | sys::swapByteOrder(cro.instanceSize); |
2976 | sys::swapByteOrder(cro.reserved); |
2977 | sys::swapByteOrder(cro.ivarLayout); |
2978 | sys::swapByteOrder(cro.name); |
2979 | sys::swapByteOrder(cro.baseMethods); |
2980 | sys::swapByteOrder(cro.baseProtocols); |
2981 | sys::swapByteOrder(cro.ivars); |
2982 | sys::swapByteOrder(cro.weakIvarLayout); |
2983 | sys::swapByteOrder(cro.baseProperties); |
2984 | } |
2985 | |
2986 | inline void swapStruct(struct class_ro32_t &cro) { |
2987 | sys::swapByteOrder(cro.flags); |
2988 | sys::swapByteOrder(cro.instanceStart); |
2989 | sys::swapByteOrder(cro.instanceSize); |
2990 | sys::swapByteOrder(cro.ivarLayout); |
2991 | sys::swapByteOrder(cro.name); |
2992 | sys::swapByteOrder(cro.baseMethods); |
2993 | sys::swapByteOrder(cro.baseProtocols); |
2994 | sys::swapByteOrder(cro.ivars); |
2995 | sys::swapByteOrder(cro.weakIvarLayout); |
2996 | sys::swapByteOrder(cro.baseProperties); |
2997 | } |
2998 | |
2999 | inline void swapStruct(struct method_list64_t &ml) { |
3000 | sys::swapByteOrder(ml.entsize); |
3001 | sys::swapByteOrder(ml.count); |
3002 | } |
3003 | |
3004 | inline void swapStruct(struct method_list32_t &ml) { |
3005 | sys::swapByteOrder(ml.entsize); |
3006 | sys::swapByteOrder(ml.count); |
3007 | } |
3008 | |
3009 | inline void swapStruct(struct method64_t &m) { |
3010 | sys::swapByteOrder(m.name); |
3011 | sys::swapByteOrder(m.types); |
3012 | sys::swapByteOrder(m.imp); |
3013 | } |
3014 | |
3015 | inline void swapStruct(struct method32_t &m) { |
3016 | sys::swapByteOrder(m.name); |
3017 | sys::swapByteOrder(m.types); |
3018 | sys::swapByteOrder(m.imp); |
3019 | } |
3020 | |
3021 | inline void swapStruct(struct protocol_list64_t &pl) { |
3022 | sys::swapByteOrder(pl.count); |
3023 | } |
3024 | |
3025 | inline void swapStruct(struct protocol_list32_t &pl) { |
3026 | sys::swapByteOrder(pl.count); |
3027 | } |
3028 | |
3029 | inline void swapStruct(struct protocol64_t &p) { |
3030 | sys::swapByteOrder(p.isa); |
3031 | sys::swapByteOrder(p.name); |
3032 | sys::swapByteOrder(p.protocols); |
3033 | sys::swapByteOrder(p.instanceMethods); |
3034 | sys::swapByteOrder(p.classMethods); |
3035 | sys::swapByteOrder(p.optionalInstanceMethods); |
3036 | sys::swapByteOrder(p.optionalClassMethods); |
3037 | sys::swapByteOrder(p.instanceProperties); |
3038 | } |
3039 | |
3040 | inline void swapStruct(struct protocol32_t &p) { |
3041 | sys::swapByteOrder(p.isa); |
3042 | sys::swapByteOrder(p.name); |
3043 | sys::swapByteOrder(p.protocols); |
3044 | sys::swapByteOrder(p.instanceMethods); |
3045 | sys::swapByteOrder(p.classMethods); |
3046 | sys::swapByteOrder(p.optionalInstanceMethods); |
3047 | sys::swapByteOrder(p.optionalClassMethods); |
3048 | sys::swapByteOrder(p.instanceProperties); |
3049 | } |
3050 | |
3051 | inline void swapStruct(struct ivar_list64_t &il) { |
3052 | sys::swapByteOrder(il.entsize); |
3053 | sys::swapByteOrder(il.count); |
3054 | } |
3055 | |
3056 | inline void swapStruct(struct ivar_list32_t &il) { |
3057 | sys::swapByteOrder(il.entsize); |
3058 | sys::swapByteOrder(il.count); |
3059 | } |
3060 | |
3061 | inline void swapStruct(struct ivar64_t &i) { |
3062 | sys::swapByteOrder(i.offset); |
3063 | sys::swapByteOrder(i.name); |
3064 | sys::swapByteOrder(i.type); |
3065 | sys::swapByteOrder(i.alignment); |
3066 | sys::swapByteOrder(i.size); |
3067 | } |
3068 | |
3069 | inline void swapStruct(struct ivar32_t &i) { |
3070 | sys::swapByteOrder(i.offset); |
3071 | sys::swapByteOrder(i.name); |
3072 | sys::swapByteOrder(i.type); |
3073 | sys::swapByteOrder(i.alignment); |
3074 | sys::swapByteOrder(i.size); |
3075 | } |
3076 | |
3077 | inline void swapStruct(struct objc_property_list64 &pl) { |
3078 | sys::swapByteOrder(pl.entsize); |
3079 | sys::swapByteOrder(pl.count); |
3080 | } |
3081 | |
3082 | inline void swapStruct(struct objc_property_list32 &pl) { |
3083 | sys::swapByteOrder(pl.entsize); |
3084 | sys::swapByteOrder(pl.count); |
3085 | } |
3086 | |
3087 | inline void swapStruct(struct objc_property64 &op) { |
3088 | sys::swapByteOrder(op.name); |
3089 | sys::swapByteOrder(op.attributes); |
3090 | } |
3091 | |
3092 | inline void swapStruct(struct objc_property32 &op) { |
3093 | sys::swapByteOrder(op.name); |
3094 | sys::swapByteOrder(op.attributes); |
3095 | } |
3096 | |
3097 | inline void swapStruct(struct category64_t &c) { |
3098 | sys::swapByteOrder(c.name); |
3099 | sys::swapByteOrder(c.cls); |
3100 | sys::swapByteOrder(c.instanceMethods); |
3101 | sys::swapByteOrder(c.classMethods); |
3102 | sys::swapByteOrder(c.protocols); |
3103 | sys::swapByteOrder(c.instanceProperties); |
3104 | } |
3105 | |
3106 | inline void swapStruct(struct category32_t &c) { |
3107 | sys::swapByteOrder(c.name); |
3108 | sys::swapByteOrder(c.cls); |
3109 | sys::swapByteOrder(c.instanceMethods); |
3110 | sys::swapByteOrder(c.classMethods); |
3111 | sys::swapByteOrder(c.protocols); |
3112 | sys::swapByteOrder(c.instanceProperties); |
3113 | } |
3114 | |
3115 | inline void swapStruct(struct objc_image_info64 &o) { |
3116 | sys::swapByteOrder(o.version); |
3117 | sys::swapByteOrder(o.flags); |
3118 | } |
3119 | |
3120 | inline void swapStruct(struct objc_image_info32 &o) { |
3121 | sys::swapByteOrder(o.version); |
3122 | sys::swapByteOrder(o.flags); |
3123 | } |
3124 | |
3125 | inline void swapStruct(struct imageInfo_t &o) { |
3126 | sys::swapByteOrder(o.version); |
3127 | sys::swapByteOrder(o.flags); |
3128 | } |
3129 | |
3130 | inline void swapStruct(struct message_ref64 &mr) { |
3131 | sys::swapByteOrder(mr.imp); |
3132 | sys::swapByteOrder(mr.sel); |
3133 | } |
3134 | |
3135 | inline void swapStruct(struct message_ref32 &mr) { |
3136 | sys::swapByteOrder(mr.imp); |
3137 | sys::swapByteOrder(mr.sel); |
3138 | } |
3139 | |
3140 | inline void swapStruct(struct objc_module_t &module) { |
3141 | sys::swapByteOrder(module.version); |
3142 | sys::swapByteOrder(module.size); |
3143 | sys::swapByteOrder(module.name); |
3144 | sys::swapByteOrder(module.symtab); |
3145 | } |
3146 | |
3147 | inline void swapStruct(struct objc_symtab_t &symtab) { |
3148 | sys::swapByteOrder(symtab.sel_ref_cnt); |
3149 | sys::swapByteOrder(symtab.refs); |
3150 | sys::swapByteOrder(symtab.cls_def_cnt); |
3151 | sys::swapByteOrder(symtab.cat_def_cnt); |
3152 | } |
3153 | |
3154 | inline void swapStruct(struct objc_class_t &objc_class) { |
3155 | sys::swapByteOrder(objc_class.isa); |
3156 | sys::swapByteOrder(objc_class.super_class); |
3157 | sys::swapByteOrder(objc_class.name); |
3158 | sys::swapByteOrder(objc_class.version); |
3159 | sys::swapByteOrder(objc_class.info); |
3160 | sys::swapByteOrder(objc_class.instance_size); |
3161 | sys::swapByteOrder(objc_class.ivars); |
3162 | sys::swapByteOrder(objc_class.methodLists); |
3163 | sys::swapByteOrder(objc_class.cache); |
3164 | sys::swapByteOrder(objc_class.protocols); |
3165 | } |
3166 | |
3167 | inline void swapStruct(struct objc_category_t &objc_category) { |
3168 | sys::swapByteOrder(objc_category.category_name); |
3169 | sys::swapByteOrder(objc_category.class_name); |
3170 | sys::swapByteOrder(objc_category.instance_methods); |
3171 | sys::swapByteOrder(objc_category.class_methods); |
3172 | sys::swapByteOrder(objc_category.protocols); |
3173 | } |
3174 | |
3175 | inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) { |
3176 | sys::swapByteOrder(objc_ivar_list.ivar_count); |
3177 | } |
3178 | |
3179 | inline void swapStruct(struct objc_ivar_t &objc_ivar) { |
3180 | sys::swapByteOrder(objc_ivar.ivar_name); |
3181 | sys::swapByteOrder(objc_ivar.ivar_type); |
3182 | sys::swapByteOrder(objc_ivar.ivar_offset); |
3183 | } |
3184 | |
3185 | inline void swapStruct(struct objc_method_list_t &method_list) { |
3186 | sys::swapByteOrder(method_list.obsolete); |
3187 | sys::swapByteOrder(method_list.method_count); |
3188 | } |
3189 | |
3190 | inline void swapStruct(struct objc_method_t &method) { |
3191 | sys::swapByteOrder(method.method_name); |
3192 | sys::swapByteOrder(method.method_types); |
3193 | sys::swapByteOrder(method.method_imp); |
3194 | } |
3195 | |
3196 | inline void swapStruct(struct objc_protocol_list_t &protocol_list) { |
3197 | sys::swapByteOrder(protocol_list.next); |
3198 | sys::swapByteOrder(protocol_list.count); |
3199 | } |
3200 | |
3201 | inline void swapStruct(struct objc_protocol_t &protocol) { |
3202 | sys::swapByteOrder(protocol.isa); |
3203 | sys::swapByteOrder(protocol.protocol_name); |
3204 | sys::swapByteOrder(protocol.protocol_list); |
3205 | sys::swapByteOrder(protocol.instance_methods); |
3206 | sys::swapByteOrder(protocol.class_methods); |
3207 | } |
3208 | |
3209 | inline void swapStruct(struct objc_method_description_list_t &mdl) { |
3210 | sys::swapByteOrder(mdl.count); |
3211 | } |
3212 | |
3213 | inline void swapStruct(struct objc_method_description_t &md) { |
3214 | sys::swapByteOrder(md.name); |
3215 | sys::swapByteOrder(md.types); |
3216 | } |
3217 | |
3218 | static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, |
3219 | struct DisassembleInfo *info); |
3220 | |
3221 | // get_objc2_64bit_class_name() is used for disassembly and is passed a pointer |
3222 | // to an Objective-C class and returns the class name. It is also passed the |
3223 | // address of the pointer, so when the pointer is zero as it can be in an .o |
3224 | // file, that is used to look for an external relocation entry with a symbol |
3225 | // name. |
3226 | static const char *get_objc2_64bit_class_name(uint64_t pointer_value, |
3227 | uint64_t ReferenceValue, |
3228 | struct DisassembleInfo *info) { |
3229 | const char *r; |
3230 | uint32_t offset, left; |
3231 | SectionRef S; |
3232 | |
3233 | // The pointer_value can be 0 in an object file and have a relocation |
3234 | // entry for the class symbol at the ReferenceValue (the address of the |
3235 | // pointer). |
3236 | if (pointer_value == 0) { |
3237 | r = get_pointer_64(ReferenceValue, offset, left, S, info); |
3238 | if (r == nullptr || left < sizeof(uint64_t)) |
3239 | return nullptr; |
3240 | uint64_t n_value; |
3241 | const char *symbol_name = get_symbol_64(offset, S, info, n_value); |
3242 | if (symbol_name == nullptr) |
3243 | return nullptr; |
3244 | const char *class_name = strrchr(symbol_name, '$'); |
3245 | if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0') |
3246 | return class_name + 2; |
3247 | else |
3248 | return nullptr; |
3249 | } |
3250 | |
3251 | // The case were the pointer_value is non-zero and points to a class defined |
3252 | // in this Mach-O file. |
3253 | r = get_pointer_64(pointer_value, offset, left, S, info); |
3254 | if (r == nullptr || left < sizeof(struct class64_t)) |
3255 | return nullptr; |
3256 | struct class64_t c; |
3257 | memcpy(&c, r, sizeof(struct class64_t)); |
3258 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3259 | swapStruct(c); |
3260 | if (c.data == 0) |
3261 | return nullptr; |
3262 | r = get_pointer_64(c.data, offset, left, S, info); |
3263 | if (r == nullptr || left < sizeof(struct class_ro64_t)) |
3264 | return nullptr; |
3265 | struct class_ro64_t cro; |
3266 | memcpy(&cro, r, sizeof(struct class_ro64_t)); |
3267 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3268 | swapStruct(cro); |
3269 | if (cro.name == 0) |
3270 | return nullptr; |
3271 | const char *name = get_pointer_64(cro.name, offset, left, S, info); |
3272 | return name; |
3273 | } |
3274 | |
3275 | // get_objc2_64bit_cfstring_name is used for disassembly and is passed a |
3276 | // pointer to a cfstring and returns its name or nullptr. |
3277 | static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue, |
3278 | struct DisassembleInfo *info) { |
3279 | const char *r, *name; |
3280 | uint32_t offset, left; |
3281 | SectionRef S; |
3282 | struct cfstring64_t cfs; |
3283 | uint64_t cfs_characters; |
3284 | |
3285 | r = get_pointer_64(ReferenceValue, offset, left, S, info); |
3286 | if (r == nullptr || left < sizeof(struct cfstring64_t)) |
3287 | return nullptr; |
3288 | memcpy(&cfs, r, sizeof(struct cfstring64_t)); |
3289 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3290 | swapStruct(cfs); |
3291 | if (cfs.characters == 0) { |
3292 | uint64_t n_value; |
3293 | const char *symbol_name = get_symbol_64( |
3294 | offset + offsetof(struct cfstring64_t, characters)__builtin_offsetof(struct cfstring64_t, characters), S, info, n_value); |
3295 | if (symbol_name == nullptr) |
3296 | return nullptr; |
3297 | cfs_characters = n_value; |
3298 | } else |
3299 | cfs_characters = cfs.characters; |
3300 | name = get_pointer_64(cfs_characters, offset, left, S, info); |
3301 | |
3302 | return name; |
3303 | } |
3304 | |
3305 | // get_objc2_64bit_selref() is used for disassembly and is passed a the address |
3306 | // of a pointer to an Objective-C selector reference when the pointer value is |
3307 | // zero as in a .o file and is likely to have a external relocation entry with |
3308 | // who's symbol's n_value is the real pointer to the selector name. If that is |
3309 | // the case the real pointer to the selector name is returned else 0 is |
3310 | // returned |
3311 | static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue, |
3312 | struct DisassembleInfo *info) { |
3313 | uint32_t offset, left; |
3314 | SectionRef S; |
3315 | |
3316 | const char *r = get_pointer_64(ReferenceValue, offset, left, S, info); |
3317 | if (r == nullptr || left < sizeof(uint64_t)) |
3318 | return 0; |
3319 | uint64_t n_value; |
3320 | const char *symbol_name = get_symbol_64(offset, S, info, n_value); |
3321 | if (symbol_name == nullptr) |
3322 | return 0; |
3323 | return n_value; |
3324 | } |
3325 | |
3326 | static const SectionRef get_section(MachOObjectFile *O, const char *segname, |
3327 | const char *sectname) { |
3328 | for (const SectionRef &Section : O->sections()) { |
3329 | StringRef SectName; |
3330 | Section.getName(SectName); |
3331 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
3332 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
3333 | if (SegName == segname && SectName == sectname) |
3334 | return Section; |
3335 | } |
3336 | return SectionRef(); |
3337 | } |
3338 | |
3339 | static void |
3340 | walk_pointer_list_64(const char *listname, const SectionRef S, |
3341 | MachOObjectFile *O, struct DisassembleInfo *info, |
3342 | void (*func)(uint64_t, struct DisassembleInfo *info)) { |
3343 | if (S == SectionRef()) |
3344 | return; |
3345 | |
3346 | StringRef SectName; |
3347 | S.getName(SectName); |
3348 | DataRefImpl Ref = S.getRawDataRefImpl(); |
3349 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
3350 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
3351 | |
3352 | StringRef BytesStr; |
3353 | S.getContents(BytesStr); |
3354 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
3355 | |
3356 | for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) { |
3357 | uint32_t left = S.getSize() - i; |
3358 | uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t); |
3359 | uint64_t p = 0; |
3360 | memcpy(&p, Contents + i, size); |
3361 | if (i + sizeof(uint64_t) > S.getSize()) |
3362 | outs() << listname << " list pointer extends past end of (" << SegName |
3363 | << "," << SectName << ") section\n"; |
3364 | outs() << format("%016" PRIx64"l" "x", S.getAddress() + i) << " "; |
3365 | |
3366 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
3367 | sys::swapByteOrder(p); |
3368 | |
3369 | uint64_t n_value = 0; |
3370 | const char *name = get_symbol_64(i, S, info, n_value, p); |
3371 | if (name == nullptr) |
3372 | name = get_dyld_bind_info_symbolname(S.getAddress() + i, info); |
3373 | |
3374 | if (n_value != 0) { |
3375 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3376 | if (p != 0) |
3377 | outs() << " + " << format("0x%" PRIx64"l" "x", p); |
3378 | } else |
3379 | outs() << format("0x%" PRIx64"l" "x", p); |
3380 | if (name != nullptr) |
3381 | outs() << " " << name; |
3382 | outs() << "\n"; |
3383 | |
3384 | p += n_value; |
3385 | if (func) |
3386 | func(p, info); |
3387 | } |
3388 | } |
3389 | |
3390 | static void |
3391 | walk_pointer_list_32(const char *listname, const SectionRef S, |
3392 | MachOObjectFile *O, struct DisassembleInfo *info, |
3393 | void (*func)(uint32_t, struct DisassembleInfo *info)) { |
3394 | if (S == SectionRef()) |
3395 | return; |
3396 | |
3397 | StringRef SectName; |
3398 | S.getName(SectName); |
3399 | DataRefImpl Ref = S.getRawDataRefImpl(); |
3400 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
3401 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
3402 | |
3403 | StringRef BytesStr; |
3404 | S.getContents(BytesStr); |
3405 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
3406 | |
3407 | for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) { |
3408 | uint32_t left = S.getSize() - i; |
3409 | uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t); |
3410 | uint32_t p = 0; |
3411 | memcpy(&p, Contents + i, size); |
3412 | if (i + sizeof(uint32_t) > S.getSize()) |
3413 | outs() << listname << " list pointer extends past end of (" << SegName |
3414 | << "," << SectName << ") section\n"; |
3415 | uint32_t Address = S.getAddress() + i; |
3416 | outs() << format("%08" PRIx32"x", Address) << " "; |
3417 | |
3418 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
3419 | sys::swapByteOrder(p); |
3420 | outs() << format("0x%" PRIx32"x", p); |
3421 | |
3422 | const char *name = get_symbol_32(i, S, info, p); |
3423 | if (name != nullptr) |
3424 | outs() << " " << name; |
3425 | outs() << "\n"; |
3426 | |
3427 | if (func) |
3428 | func(p, info); |
3429 | } |
3430 | } |
3431 | |
3432 | static void print_layout_map(const char *layout_map, uint32_t left) { |
3433 | if (layout_map == nullptr) |
3434 | return; |
3435 | outs() << " layout map: "; |
3436 | do { |
3437 | outs() << format("0x%02" PRIx32"x", (*layout_map) & 0xff) << " "; |
3438 | left--; |
3439 | layout_map++; |
3440 | } while (*layout_map != '\0' && left != 0); |
3441 | outs() << "\n"; |
3442 | } |
3443 | |
3444 | static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) { |
3445 | uint32_t offset, left; |
3446 | SectionRef S; |
3447 | const char *layout_map; |
3448 | |
3449 | if (p == 0) |
3450 | return; |
3451 | layout_map = get_pointer_64(p, offset, left, S, info); |
3452 | print_layout_map(layout_map, left); |
3453 | } |
3454 | |
3455 | static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) { |
3456 | uint32_t offset, left; |
3457 | SectionRef S; |
3458 | const char *layout_map; |
3459 | |
3460 | if (p == 0) |
3461 | return; |
3462 | layout_map = get_pointer_32(p, offset, left, S, info); |
3463 | print_layout_map(layout_map, left); |
3464 | } |
3465 | |
3466 | static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info, |
3467 | const char *indent) { |
3468 | struct method_list64_t ml; |
3469 | struct method64_t m; |
3470 | const char *r; |
3471 | uint32_t offset, xoffset, left, i; |
3472 | SectionRef S, xS; |
3473 | const char *name, *sym_name; |
3474 | uint64_t n_value; |
3475 | |
3476 | r = get_pointer_64(p, offset, left, S, info); |
3477 | if (r == nullptr) |
3478 | return; |
3479 | memset(&ml, '\0', sizeof(struct method_list64_t)); |
3480 | if (left < sizeof(struct method_list64_t)) { |
3481 | memcpy(&ml, r, left); |
3482 | outs() << " (method_list_t entends past the end of the section)\n"; |
3483 | } else |
3484 | memcpy(&ml, r, sizeof(struct method_list64_t)); |
3485 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3486 | swapStruct(ml); |
3487 | outs() << indent << "\t\t entsize " << ml.entsize << "\n"; |
3488 | outs() << indent << "\t\t count " << ml.count << "\n"; |
3489 | |
3490 | p += sizeof(struct method_list64_t); |
3491 | offset += sizeof(struct method_list64_t); |
3492 | for (i = 0; i < ml.count; i++) { |
3493 | r = get_pointer_64(p, offset, left, S, info); |
3494 | if (r == nullptr) |
3495 | return; |
3496 | memset(&m, '\0', sizeof(struct method64_t)); |
3497 | if (left < sizeof(struct method64_t)) { |
3498 | memcpy(&m, r, left); |
3499 | outs() << indent << " (method_t extends past the end of the section)\n"; |
3500 | } else |
3501 | memcpy(&m, r, sizeof(struct method64_t)); |
3502 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3503 | swapStruct(m); |
3504 | |
3505 | outs() << indent << "\t\t name "; |
3506 | sym_name = get_symbol_64(offset + offsetof(struct method64_t, name)__builtin_offsetof(struct method64_t, name), S, |
3507 | info, n_value, m.name); |
3508 | if (n_value != 0) { |
3509 | if (info->verbose && sym_name != nullptr) |
3510 | outs() << sym_name; |
3511 | else |
3512 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3513 | if (m.name != 0) |
3514 | outs() << " + " << format("0x%" PRIx64"l" "x", m.name); |
3515 | } else |
3516 | outs() << format("0x%" PRIx64"l" "x", m.name); |
3517 | name = get_pointer_64(m.name + n_value, xoffset, left, xS, info); |
3518 | if (name != nullptr) |
3519 | outs() << format(" %.*s", left, name); |
3520 | outs() << "\n"; |
3521 | |
3522 | outs() << indent << "\t\t types "; |
3523 | sym_name = get_symbol_64(offset + offsetof(struct method64_t, types)__builtin_offsetof(struct method64_t, types), S, |
3524 | info, n_value, m.types); |
3525 | if (n_value != 0) { |
3526 | if (info->verbose && sym_name != nullptr) |
3527 | outs() << sym_name; |
3528 | else |
3529 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3530 | if (m.types != 0) |
3531 | outs() << " + " << format("0x%" PRIx64"l" "x", m.types); |
3532 | } else |
3533 | outs() << format("0x%" PRIx64"l" "x", m.types); |
3534 | name = get_pointer_64(m.types + n_value, xoffset, left, xS, info); |
3535 | if (name != nullptr) |
3536 | outs() << format(" %.*s", left, name); |
3537 | outs() << "\n"; |
3538 | |
3539 | outs() << indent << "\t\t imp "; |
3540 | name = get_symbol_64(offset + offsetof(struct method64_t, imp)__builtin_offsetof(struct method64_t, imp), S, info, |
3541 | n_value, m.imp); |
3542 | if (info->verbose && name == nullptr) { |
3543 | if (n_value != 0) { |
3544 | outs() << format("0x%" PRIx64"l" "x", n_value) << " "; |
3545 | if (m.imp != 0) |
3546 | outs() << "+ " << format("0x%" PRIx64"l" "x", m.imp) << " "; |
3547 | } else |
3548 | outs() << format("0x%" PRIx64"l" "x", m.imp) << " "; |
3549 | } |
3550 | if (name != nullptr) |
3551 | outs() << name; |
3552 | outs() << "\n"; |
3553 | |
3554 | p += sizeof(struct method64_t); |
3555 | offset += sizeof(struct method64_t); |
3556 | } |
3557 | } |
3558 | |
3559 | static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info, |
3560 | const char *indent) { |
3561 | struct method_list32_t ml; |
3562 | struct method32_t m; |
3563 | const char *r, *name; |
3564 | uint32_t offset, xoffset, left, i; |
3565 | SectionRef S, xS; |
3566 | |
3567 | r = get_pointer_32(p, offset, left, S, info); |
3568 | if (r == nullptr) |
3569 | return; |
3570 | memset(&ml, '\0', sizeof(struct method_list32_t)); |
3571 | if (left < sizeof(struct method_list32_t)) { |
3572 | memcpy(&ml, r, left); |
3573 | outs() << " (method_list_t entends past the end of the section)\n"; |
3574 | } else |
3575 | memcpy(&ml, r, sizeof(struct method_list32_t)); |
3576 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3577 | swapStruct(ml); |
3578 | outs() << indent << "\t\t entsize " << ml.entsize << "\n"; |
3579 | outs() << indent << "\t\t count " << ml.count << "\n"; |
3580 | |
3581 | p += sizeof(struct method_list32_t); |
3582 | offset += sizeof(struct method_list32_t); |
3583 | for (i = 0; i < ml.count; i++) { |
3584 | r = get_pointer_32(p, offset, left, S, info); |
3585 | if (r == nullptr) |
3586 | return; |
3587 | memset(&m, '\0', sizeof(struct method32_t)); |
3588 | if (left < sizeof(struct method32_t)) { |
3589 | memcpy(&ml, r, left); |
3590 | outs() << indent << " (method_t entends past the end of the section)\n"; |
3591 | } else |
3592 | memcpy(&m, r, sizeof(struct method32_t)); |
3593 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3594 | swapStruct(m); |
3595 | |
3596 | outs() << indent << "\t\t name " << format("0x%" PRIx32"x", m.name); |
3597 | name = get_pointer_32(m.name, xoffset, left, xS, info); |
3598 | if (name != nullptr) |
3599 | outs() << format(" %.*s", left, name); |
3600 | outs() << "\n"; |
3601 | |
3602 | outs() << indent << "\t\t types " << format("0x%" PRIx32"x", m.types); |
3603 | name = get_pointer_32(m.types, xoffset, left, xS, info); |
3604 | if (name != nullptr) |
3605 | outs() << format(" %.*s", left, name); |
3606 | outs() << "\n"; |
3607 | |
3608 | outs() << indent << "\t\t imp " << format("0x%" PRIx32"x", m.imp); |
3609 | name = get_symbol_32(offset + offsetof(struct method32_t, imp)__builtin_offsetof(struct method32_t, imp), S, info, |
3610 | m.imp); |
3611 | if (name != nullptr) |
3612 | outs() << " " << name; |
3613 | outs() << "\n"; |
3614 | |
3615 | p += sizeof(struct method32_t); |
3616 | offset += sizeof(struct method32_t); |
3617 | } |
3618 | } |
3619 | |
3620 | static bool print_method_list(uint32_t p, struct DisassembleInfo *info) { |
3621 | uint32_t offset, left, xleft; |
3622 | SectionRef S; |
3623 | struct objc_method_list_t method_list; |
3624 | struct objc_method_t method; |
3625 | const char *r, *methods, *name, *SymbolName; |
3626 | int32_t i; |
3627 | |
3628 | r = get_pointer_32(p, offset, left, S, info, true); |
3629 | if (r == nullptr) |
3630 | return true; |
3631 | |
3632 | outs() << "\n"; |
3633 | if (left > sizeof(struct objc_method_list_t)) { |
3634 | memcpy(&method_list, r, sizeof(struct objc_method_list_t)); |
3635 | } else { |
3636 | outs() << "\t\t objc_method_list extends past end of the section\n"; |
3637 | memset(&method_list, '\0', sizeof(struct objc_method_list_t)); |
3638 | memcpy(&method_list, r, left); |
3639 | } |
3640 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3641 | swapStruct(method_list); |
3642 | |
3643 | outs() << "\t\t obsolete " |
3644 | << format("0x%08" PRIx32"x", method_list.obsolete) << "\n"; |
3645 | outs() << "\t\t method_count " << method_list.method_count << "\n"; |
3646 | |
3647 | methods = r + sizeof(struct objc_method_list_t); |
3648 | for (i = 0; i < method_list.method_count; i++) { |
3649 | if ((i + 1) * sizeof(struct objc_method_t) > left) { |
3650 | outs() << "\t\t remaining method's extend past the of the section\n"; |
3651 | break; |
3652 | } |
3653 | memcpy(&method, methods + i * sizeof(struct objc_method_t), |
3654 | sizeof(struct objc_method_t)); |
3655 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3656 | swapStruct(method); |
3657 | |
3658 | outs() << "\t\t method_name " |
3659 | << format("0x%08" PRIx32"x", method.method_name); |
3660 | if (info->verbose) { |
3661 | name = get_pointer_32(method.method_name, offset, xleft, S, info, true); |
3662 | if (name != nullptr) |
3663 | outs() << format(" %.*s", xleft, name); |
3664 | else |
3665 | outs() << " (not in an __OBJC section)"; |
3666 | } |
3667 | outs() << "\n"; |
3668 | |
3669 | outs() << "\t\t method_types " |
3670 | << format("0x%08" PRIx32"x", method.method_types); |
3671 | if (info->verbose) { |
3672 | name = get_pointer_32(method.method_types, offset, xleft, S, info, true); |
3673 | if (name != nullptr) |
3674 | outs() << format(" %.*s", xleft, name); |
3675 | else |
3676 | outs() << " (not in an __OBJC section)"; |
3677 | } |
3678 | outs() << "\n"; |
3679 | |
3680 | outs() << "\t\t method_imp " |
3681 | << format("0x%08" PRIx32"x", method.method_imp) << " "; |
3682 | if (info->verbose) { |
3683 | SymbolName = GuessSymbolName(method.method_imp, info->AddrMap); |
3684 | if (SymbolName != nullptr) |
3685 | outs() << SymbolName; |
3686 | } |
3687 | outs() << "\n"; |
3688 | } |
3689 | return false; |
3690 | } |
3691 | |
3692 | static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) { |
3693 | struct protocol_list64_t pl; |
3694 | uint64_t q, n_value; |
3695 | struct protocol64_t pc; |
3696 | const char *r; |
3697 | uint32_t offset, xoffset, left, i; |
3698 | SectionRef S, xS; |
3699 | const char *name, *sym_name; |
3700 | |
3701 | r = get_pointer_64(p, offset, left, S, info); |
3702 | if (r == nullptr) |
3703 | return; |
3704 | memset(&pl, '\0', sizeof(struct protocol_list64_t)); |
3705 | if (left < sizeof(struct protocol_list64_t)) { |
3706 | memcpy(&pl, r, left); |
3707 | outs() << " (protocol_list_t entends past the end of the section)\n"; |
3708 | } else |
3709 | memcpy(&pl, r, sizeof(struct protocol_list64_t)); |
3710 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3711 | swapStruct(pl); |
3712 | outs() << " count " << pl.count << "\n"; |
3713 | |
3714 | p += sizeof(struct protocol_list64_t); |
3715 | offset += sizeof(struct protocol_list64_t); |
3716 | for (i = 0; i < pl.count; i++) { |
3717 | r = get_pointer_64(p, offset, left, S, info); |
3718 | if (r == nullptr) |
3719 | return; |
3720 | q = 0; |
3721 | if (left < sizeof(uint64_t)) { |
3722 | memcpy(&q, r, left); |
3723 | outs() << " (protocol_t * entends past the end of the section)\n"; |
3724 | } else |
3725 | memcpy(&q, r, sizeof(uint64_t)); |
3726 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3727 | sys::swapByteOrder(q); |
3728 | |
3729 | outs() << "\t\t list[" << i << "] "; |
3730 | sym_name = get_symbol_64(offset, S, info, n_value, q); |
3731 | if (n_value != 0) { |
3732 | if (info->verbose && sym_name != nullptr) |
3733 | outs() << sym_name; |
3734 | else |
3735 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3736 | if (q != 0) |
3737 | outs() << " + " << format("0x%" PRIx64"l" "x", q); |
3738 | } else |
3739 | outs() << format("0x%" PRIx64"l" "x", q); |
3740 | outs() << " (struct protocol_t *)\n"; |
3741 | |
3742 | r = get_pointer_64(q + n_value, offset, left, S, info); |
3743 | if (r == nullptr) |
3744 | return; |
3745 | memset(&pc, '\0', sizeof(struct protocol64_t)); |
3746 | if (left < sizeof(struct protocol64_t)) { |
3747 | memcpy(&pc, r, left); |
3748 | outs() << " (protocol_t entends past the end of the section)\n"; |
3749 | } else |
3750 | memcpy(&pc, r, sizeof(struct protocol64_t)); |
3751 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3752 | swapStruct(pc); |
3753 | |
3754 | outs() << "\t\t\t isa " << format("0x%" PRIx64"l" "x", pc.isa) << "\n"; |
3755 | |
3756 | outs() << "\t\t\t name "; |
3757 | sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name)__builtin_offsetof(struct protocol64_t, name), S, |
3758 | info, n_value, pc.name); |
3759 | if (n_value != 0) { |
3760 | if (info->verbose && sym_name != nullptr) |
3761 | outs() << sym_name; |
3762 | else |
3763 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3764 | if (pc.name != 0) |
3765 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.name); |
3766 | } else |
3767 | outs() << format("0x%" PRIx64"l" "x", pc.name); |
3768 | name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info); |
3769 | if (name != nullptr) |
3770 | outs() << format(" %.*s", left, name); |
3771 | outs() << "\n"; |
3772 | |
3773 | outs() << "\t\t\tprotocols " << format("0x%" PRIx64"l" "x", pc.protocols) << "\n"; |
3774 | |
3775 | outs() << "\t\t instanceMethods "; |
3776 | sym_name = |
3777 | get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods)__builtin_offsetof(struct protocol64_t, instanceMethods), |
3778 | S, info, n_value, pc.instanceMethods); |
3779 | if (n_value != 0) { |
3780 | if (info->verbose && sym_name != nullptr) |
3781 | outs() << sym_name; |
3782 | else |
3783 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3784 | if (pc.instanceMethods != 0) |
3785 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.instanceMethods); |
3786 | } else |
3787 | outs() << format("0x%" PRIx64"l" "x", pc.instanceMethods); |
3788 | outs() << " (struct method_list_t *)\n"; |
3789 | if (pc.instanceMethods + n_value != 0) |
3790 | print_method_list64_t(pc.instanceMethods + n_value, info, "\t"); |
3791 | |
3792 | outs() << "\t\t classMethods "; |
3793 | sym_name = |
3794 | get_symbol_64(offset + offsetof(struct protocol64_t, classMethods)__builtin_offsetof(struct protocol64_t, classMethods), S, |
3795 | info, n_value, pc.classMethods); |
3796 | if (n_value != 0) { |
3797 | if (info->verbose && sym_name != nullptr) |
3798 | outs() << sym_name; |
3799 | else |
3800 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3801 | if (pc.classMethods != 0) |
3802 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.classMethods); |
3803 | } else |
3804 | outs() << format("0x%" PRIx64"l" "x", pc.classMethods); |
3805 | outs() << " (struct method_list_t *)\n"; |
3806 | if (pc.classMethods + n_value != 0) |
3807 | print_method_list64_t(pc.classMethods + n_value, info, "\t"); |
3808 | |
3809 | outs() << "\t optionalInstanceMethods " |
3810 | << format("0x%" PRIx64"l" "x", pc.optionalInstanceMethods) << "\n"; |
3811 | outs() << "\t optionalClassMethods " |
3812 | << format("0x%" PRIx64"l" "x", pc.optionalClassMethods) << "\n"; |
3813 | outs() << "\t instanceProperties " |
3814 | << format("0x%" PRIx64"l" "x", pc.instanceProperties) << "\n"; |
3815 | |
3816 | p += sizeof(uint64_t); |
3817 | offset += sizeof(uint64_t); |
3818 | } |
3819 | } |
3820 | |
3821 | static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) { |
3822 | struct protocol_list32_t pl; |
3823 | uint32_t q; |
3824 | struct protocol32_t pc; |
3825 | const char *r; |
3826 | uint32_t offset, xoffset, left, i; |
3827 | SectionRef S, xS; |
3828 | const char *name; |
3829 | |
3830 | r = get_pointer_32(p, offset, left, S, info); |
3831 | if (r == nullptr) |
3832 | return; |
3833 | memset(&pl, '\0', sizeof(struct protocol_list32_t)); |
3834 | if (left < sizeof(struct protocol_list32_t)) { |
3835 | memcpy(&pl, r, left); |
3836 | outs() << " (protocol_list_t entends past the end of the section)\n"; |
3837 | } else |
3838 | memcpy(&pl, r, sizeof(struct protocol_list32_t)); |
3839 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3840 | swapStruct(pl); |
3841 | outs() << " count " << pl.count << "\n"; |
3842 | |
3843 | p += sizeof(struct protocol_list32_t); |
3844 | offset += sizeof(struct protocol_list32_t); |
3845 | for (i = 0; i < pl.count; i++) { |
3846 | r = get_pointer_32(p, offset, left, S, info); |
3847 | if (r == nullptr) |
3848 | return; |
3849 | q = 0; |
3850 | if (left < sizeof(uint32_t)) { |
3851 | memcpy(&q, r, left); |
3852 | outs() << " (protocol_t * entends past the end of the section)\n"; |
3853 | } else |
3854 | memcpy(&q, r, sizeof(uint32_t)); |
3855 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3856 | sys::swapByteOrder(q); |
3857 | outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32"x", q) |
3858 | << " (struct protocol_t *)\n"; |
3859 | r = get_pointer_32(q, offset, left, S, info); |
3860 | if (r == nullptr) |
3861 | return; |
3862 | memset(&pc, '\0', sizeof(struct protocol32_t)); |
3863 | if (left < sizeof(struct protocol32_t)) { |
3864 | memcpy(&pc, r, left); |
3865 | outs() << " (protocol_t entends past the end of the section)\n"; |
3866 | } else |
3867 | memcpy(&pc, r, sizeof(struct protocol32_t)); |
3868 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3869 | swapStruct(pc); |
3870 | outs() << "\t\t\t isa " << format("0x%" PRIx32"x", pc.isa) << "\n"; |
3871 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", pc.name); |
3872 | name = get_pointer_32(pc.name, xoffset, left, xS, info); |
3873 | if (name != nullptr) |
3874 | outs() << format(" %.*s", left, name); |
3875 | outs() << "\n"; |
3876 | outs() << "\t\t\tprotocols " << format("0x%" PRIx32"x", pc.protocols) << "\n"; |
3877 | outs() << "\t\t instanceMethods " |
3878 | << format("0x%" PRIx32"x", pc.instanceMethods) |
3879 | << " (struct method_list_t *)\n"; |
3880 | if (pc.instanceMethods != 0) |
3881 | print_method_list32_t(pc.instanceMethods, info, "\t"); |
3882 | outs() << "\t\t classMethods " << format("0x%" PRIx32"x", pc.classMethods) |
3883 | << " (struct method_list_t *)\n"; |
3884 | if (pc.classMethods != 0) |
3885 | print_method_list32_t(pc.classMethods, info, "\t"); |
3886 | outs() << "\t optionalInstanceMethods " |
3887 | << format("0x%" PRIx32"x", pc.optionalInstanceMethods) << "\n"; |
3888 | outs() << "\t optionalClassMethods " |
3889 | << format("0x%" PRIx32"x", pc.optionalClassMethods) << "\n"; |
3890 | outs() << "\t instanceProperties " |
3891 | << format("0x%" PRIx32"x", pc.instanceProperties) << "\n"; |
3892 | p += sizeof(uint32_t); |
3893 | offset += sizeof(uint32_t); |
3894 | } |
3895 | } |
3896 | |
3897 | static void print_indent(uint32_t indent) { |
3898 | for (uint32_t i = 0; i < indent;) { |
3899 | if (indent - i >= 8) { |
3900 | outs() << "\t"; |
3901 | i += 8; |
3902 | } else { |
3903 | for (uint32_t j = i; j < indent; j++) |
3904 | outs() << " "; |
3905 | return; |
3906 | } |
3907 | } |
3908 | } |
3909 | |
3910 | static bool print_method_description_list(uint32_t p, uint32_t indent, |
3911 | struct DisassembleInfo *info) { |
3912 | uint32_t offset, left, xleft; |
3913 | SectionRef S; |
3914 | struct objc_method_description_list_t mdl; |
3915 | struct objc_method_description_t md; |
3916 | const char *r, *list, *name; |
3917 | int32_t i; |
3918 | |
3919 | r = get_pointer_32(p, offset, left, S, info, true); |
3920 | if (r == nullptr) |
3921 | return true; |
3922 | |
3923 | outs() << "\n"; |
3924 | if (left > sizeof(struct objc_method_description_list_t)) { |
3925 | memcpy(&mdl, r, sizeof(struct objc_method_description_list_t)); |
3926 | } else { |
3927 | print_indent(indent); |
3928 | outs() << " objc_method_description_list extends past end of the section\n"; |
3929 | memset(&mdl, '\0', sizeof(struct objc_method_description_list_t)); |
3930 | memcpy(&mdl, r, left); |
3931 | } |
3932 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3933 | swapStruct(mdl); |
3934 | |
3935 | print_indent(indent); |
3936 | outs() << " count " << mdl.count << "\n"; |
3937 | |
3938 | list = r + sizeof(struct objc_method_description_list_t); |
3939 | for (i = 0; i < mdl.count; i++) { |
3940 | if ((i + 1) * sizeof(struct objc_method_description_t) > left) { |
3941 | print_indent(indent); |
3942 | outs() << " remaining list entries extend past the of the section\n"; |
3943 | break; |
3944 | } |
3945 | print_indent(indent); |
3946 | outs() << " list[" << i << "]\n"; |
3947 | memcpy(&md, list + i * sizeof(struct objc_method_description_t), |
3948 | sizeof(struct objc_method_description_t)); |
3949 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3950 | swapStruct(md); |
3951 | |
3952 | print_indent(indent); |
3953 | outs() << " name " << format("0x%08" PRIx32"x", md.name); |
3954 | if (info->verbose) { |
3955 | name = get_pointer_32(md.name, offset, xleft, S, info, true); |
3956 | if (name != nullptr) |
3957 | outs() << format(" %.*s", xleft, name); |
3958 | else |
3959 | outs() << " (not in an __OBJC section)"; |
3960 | } |
3961 | outs() << "\n"; |
3962 | |
3963 | print_indent(indent); |
3964 | outs() << " types " << format("0x%08" PRIx32"x", md.types); |
3965 | if (info->verbose) { |
3966 | name = get_pointer_32(md.types, offset, xleft, S, info, true); |
3967 | if (name != nullptr) |
3968 | outs() << format(" %.*s", xleft, name); |
3969 | else |
3970 | outs() << " (not in an __OBJC section)"; |
3971 | } |
3972 | outs() << "\n"; |
3973 | } |
3974 | return false; |
3975 | } |
3976 | |
3977 | static bool print_protocol_list(uint32_t p, uint32_t indent, |
3978 | struct DisassembleInfo *info); |
3979 | |
3980 | static bool print_protocol(uint32_t p, uint32_t indent, |
3981 | struct DisassembleInfo *info) { |
3982 | uint32_t offset, left; |
3983 | SectionRef S; |
3984 | struct objc_protocol_t protocol; |
3985 | const char *r, *name; |
3986 | |
3987 | r = get_pointer_32(p, offset, left, S, info, true); |
3988 | if (r == nullptr) |
3989 | return true; |
3990 | |
3991 | outs() << "\n"; |
3992 | if (left >= sizeof(struct objc_protocol_t)) { |
3993 | memcpy(&protocol, r, sizeof(struct objc_protocol_t)); |
3994 | } else { |
3995 | print_indent(indent); |
3996 | outs() << " Protocol extends past end of the section\n"; |
3997 | memset(&protocol, '\0', sizeof(struct objc_protocol_t)); |
3998 | memcpy(&protocol, r, left); |
3999 | } |
4000 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4001 | swapStruct(protocol); |
4002 | |
4003 | print_indent(indent); |
4004 | outs() << " isa " << format("0x%08" PRIx32"x", protocol.isa) |
4005 | << "\n"; |
4006 | |
4007 | print_indent(indent); |
4008 | outs() << " protocol_name " |
4009 | << format("0x%08" PRIx32"x", protocol.protocol_name); |
4010 | if (info->verbose) { |
4011 | name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true); |
4012 | if (name != nullptr) |
4013 | outs() << format(" %.*s", left, name); |
4014 | else |
4015 | outs() << " (not in an __OBJC section)"; |
4016 | } |
4017 | outs() << "\n"; |
4018 | |
4019 | print_indent(indent); |
4020 | outs() << " protocol_list " |
4021 | << format("0x%08" PRIx32"x", protocol.protocol_list); |
4022 | if (print_protocol_list(protocol.protocol_list, indent + 4, info)) |
4023 | outs() << " (not in an __OBJC section)\n"; |
4024 | |
4025 | print_indent(indent); |
4026 | outs() << " instance_methods " |
4027 | << format("0x%08" PRIx32"x", protocol.instance_methods); |
4028 | if (print_method_description_list(protocol.instance_methods, indent, info)) |
4029 | outs() << " (not in an __OBJC section)\n"; |
4030 | |
4031 | print_indent(indent); |
4032 | outs() << " class_methods " |
4033 | << format("0x%08" PRIx32"x", protocol.class_methods); |
4034 | if (print_method_description_list(protocol.class_methods, indent, info)) |
4035 | outs() << " (not in an __OBJC section)\n"; |
4036 | |
4037 | return false; |
4038 | } |
4039 | |
4040 | static bool print_protocol_list(uint32_t p, uint32_t indent, |
4041 | struct DisassembleInfo *info) { |
4042 | uint32_t offset, left, l; |
4043 | SectionRef S; |
4044 | struct objc_protocol_list_t protocol_list; |
4045 | const char *r, *list; |
4046 | int32_t i; |
4047 | |
4048 | r = get_pointer_32(p, offset, left, S, info, true); |
4049 | if (r == nullptr) |
4050 | return true; |
4051 | |
4052 | outs() << "\n"; |
4053 | if (left > sizeof(struct objc_protocol_list_t)) { |
4054 | memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t)); |
4055 | } else { |
4056 | outs() << "\t\t objc_protocol_list_t extends past end of the section\n"; |
4057 | memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t)); |
4058 | memcpy(&protocol_list, r, left); |
4059 | } |
4060 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4061 | swapStruct(protocol_list); |
4062 | |
4063 | print_indent(indent); |
4064 | outs() << " next " << format("0x%08" PRIx32"x", protocol_list.next) |
4065 | << "\n"; |
4066 | print_indent(indent); |
4067 | outs() << " count " << protocol_list.count << "\n"; |
4068 | |
4069 | list = r + sizeof(struct objc_protocol_list_t); |
4070 | for (i = 0; i < protocol_list.count; i++) { |
4071 | if ((i + 1) * sizeof(uint32_t) > left) { |
4072 | outs() << "\t\t remaining list entries extend past the of the section\n"; |
4073 | break; |
4074 | } |
4075 | memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t)); |
4076 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4077 | sys::swapByteOrder(l); |
4078 | |
4079 | print_indent(indent); |
4080 | outs() << " list[" << i << "] " << format("0x%08" PRIx32"x", l); |
4081 | if (print_protocol(l, indent, info)) |
4082 | outs() << "(not in an __OBJC section)\n"; |
4083 | } |
4084 | return false; |
4085 | } |
4086 | |
4087 | static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) { |
4088 | struct ivar_list64_t il; |
4089 | struct ivar64_t i; |
4090 | const char *r; |
4091 | uint32_t offset, xoffset, left, j; |
4092 | SectionRef S, xS; |
4093 | const char *name, *sym_name, *ivar_offset_p; |
4094 | uint64_t ivar_offset, n_value; |
4095 | |
4096 | r = get_pointer_64(p, offset, left, S, info); |
4097 | if (r == nullptr) |
4098 | return; |
4099 | memset(&il, '\0', sizeof(struct ivar_list64_t)); |
4100 | if (left < sizeof(struct ivar_list64_t)) { |
4101 | memcpy(&il, r, left); |
4102 | outs() << " (ivar_list_t entends past the end of the section)\n"; |
4103 | } else |
4104 | memcpy(&il, r, sizeof(struct ivar_list64_t)); |
4105 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4106 | swapStruct(il); |
4107 | outs() << " entsize " << il.entsize << "\n"; |
4108 | outs() << " count " << il.count << "\n"; |
4109 | |
4110 | p += sizeof(struct ivar_list64_t); |
4111 | offset += sizeof(struct ivar_list64_t); |
4112 | for (j = 0; j < il.count; j++) { |
4113 | r = get_pointer_64(p, offset, left, S, info); |
4114 | if (r == nullptr) |
4115 | return; |
4116 | memset(&i, '\0', sizeof(struct ivar64_t)); |
4117 | if (left < sizeof(struct ivar64_t)) { |
4118 | memcpy(&i, r, left); |
4119 | outs() << " (ivar_t entends past the end of the section)\n"; |
4120 | } else |
4121 | memcpy(&i, r, sizeof(struct ivar64_t)); |
4122 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4123 | swapStruct(i); |
4124 | |
4125 | outs() << "\t\t\t offset "; |
4126 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset)__builtin_offsetof(struct ivar64_t, offset), S, |
4127 | info, n_value, i.offset); |
4128 | if (n_value != 0) { |
4129 | if (info->verbose && sym_name != nullptr) |
4130 | outs() << sym_name; |
4131 | else |
4132 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4133 | if (i.offset != 0) |
4134 | outs() << " + " << format("0x%" PRIx64"l" "x", i.offset); |
4135 | } else |
4136 | outs() << format("0x%" PRIx64"l" "x", i.offset); |
4137 | ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info); |
4138 | if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { |
4139 | memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); |
4140 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4141 | sys::swapByteOrder(ivar_offset); |
4142 | outs() << " " << ivar_offset << "\n"; |
4143 | } else |
4144 | outs() << "\n"; |
4145 | |
4146 | outs() << "\t\t\t name "; |
4147 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name)__builtin_offsetof(struct ivar64_t, name), S, info, |
4148 | n_value, i.name); |
4149 | if (n_value != 0) { |
4150 | if (info->verbose && sym_name != nullptr) |
4151 | outs() << sym_name; |
4152 | else |
4153 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4154 | if (i.name != 0) |
4155 | outs() << " + " << format("0x%" PRIx64"l" "x", i.name); |
4156 | } else |
4157 | outs() << format("0x%" PRIx64"l" "x", i.name); |
4158 | name = get_pointer_64(i.name + n_value, xoffset, left, xS, info); |
4159 | if (name != nullptr) |
4160 | outs() << format(" %.*s", left, name); |
4161 | outs() << "\n"; |
4162 | |
4163 | outs() << "\t\t\t type "; |
4164 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type)__builtin_offsetof(struct ivar64_t, type), S, info, |
4165 | n_value, i.name); |
4166 | name = get_pointer_64(i.type + n_value, xoffset, left, xS, info); |
4167 | if (n_value != 0) { |
4168 | if (info->verbose && sym_name != nullptr) |
4169 | outs() << sym_name; |
4170 | else |
4171 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4172 | if (i.type != 0) |
4173 | outs() << " + " << format("0x%" PRIx64"l" "x", i.type); |
4174 | } else |
4175 | outs() << format("0x%" PRIx64"l" "x", i.type); |
4176 | if (name != nullptr) |
4177 | outs() << format(" %.*s", left, name); |
4178 | outs() << "\n"; |
4179 | |
4180 | outs() << "\t\t\talignment " << i.alignment << "\n"; |
4181 | outs() << "\t\t\t size " << i.size << "\n"; |
4182 | |
4183 | p += sizeof(struct ivar64_t); |
4184 | offset += sizeof(struct ivar64_t); |
4185 | } |
4186 | } |
4187 | |
4188 | static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) { |
4189 | struct ivar_list32_t il; |
4190 | struct ivar32_t i; |
4191 | const char *r; |
4192 | uint32_t offset, xoffset, left, j; |
4193 | SectionRef S, xS; |
4194 | const char *name, *ivar_offset_p; |
4195 | uint32_t ivar_offset; |
4196 | |
4197 | r = get_pointer_32(p, offset, left, S, info); |
4198 | if (r == nullptr) |
4199 | return; |
4200 | memset(&il, '\0', sizeof(struct ivar_list32_t)); |
4201 | if (left < sizeof(struct ivar_list32_t)) { |
4202 | memcpy(&il, r, left); |
4203 | outs() << " (ivar_list_t entends past the end of the section)\n"; |
4204 | } else |
4205 | memcpy(&il, r, sizeof(struct ivar_list32_t)); |
4206 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4207 | swapStruct(il); |
4208 | outs() << " entsize " << il.entsize << "\n"; |
4209 | outs() << " count " << il.count << "\n"; |
4210 | |
4211 | p += sizeof(struct ivar_list32_t); |
4212 | offset += sizeof(struct ivar_list32_t); |
4213 | for (j = 0; j < il.count; j++) { |
4214 | r = get_pointer_32(p, offset, left, S, info); |
4215 | if (r == nullptr) |
4216 | return; |
4217 | memset(&i, '\0', sizeof(struct ivar32_t)); |
4218 | if (left < sizeof(struct ivar32_t)) { |
4219 | memcpy(&i, r, left); |
4220 | outs() << " (ivar_t entends past the end of the section)\n"; |
4221 | } else |
4222 | memcpy(&i, r, sizeof(struct ivar32_t)); |
4223 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4224 | swapStruct(i); |
4225 | |
4226 | outs() << "\t\t\t offset " << format("0x%" PRIx32"x", i.offset); |
4227 | ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info); |
4228 | if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { |
4229 | memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); |
4230 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4231 | sys::swapByteOrder(ivar_offset); |
4232 | outs() << " " << ivar_offset << "\n"; |
4233 | } else |
4234 | outs() << "\n"; |
4235 | |
4236 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", i.name); |
4237 | name = get_pointer_32(i.name, xoffset, left, xS, info); |
4238 | if (name != nullptr) |
4239 | outs() << format(" %.*s", left, name); |
4240 | outs() << "\n"; |
4241 | |
4242 | outs() << "\t\t\t type " << format("0x%" PRIx32"x", i.type); |
4243 | name = get_pointer_32(i.type, xoffset, left, xS, info); |
4244 | if (name != nullptr) |
4245 | outs() << format(" %.*s", left, name); |
4246 | outs() << "\n"; |
4247 | |
4248 | outs() << "\t\t\talignment " << i.alignment << "\n"; |
4249 | outs() << "\t\t\t size " << i.size << "\n"; |
4250 | |
4251 | p += sizeof(struct ivar32_t); |
4252 | offset += sizeof(struct ivar32_t); |
4253 | } |
4254 | } |
4255 | |
4256 | static void print_objc_property_list64(uint64_t p, |
4257 | struct DisassembleInfo *info) { |
4258 | struct objc_property_list64 opl; |
4259 | struct objc_property64 op; |
4260 | const char *r; |
4261 | uint32_t offset, xoffset, left, j; |
4262 | SectionRef S, xS; |
4263 | const char *name, *sym_name; |
4264 | uint64_t n_value; |
4265 | |
4266 | r = get_pointer_64(p, offset, left, S, info); |
4267 | if (r == nullptr) |
4268 | return; |
4269 | memset(&opl, '\0', sizeof(struct objc_property_list64)); |
4270 | if (left < sizeof(struct objc_property_list64)) { |
4271 | memcpy(&opl, r, left); |
4272 | outs() << " (objc_property_list entends past the end of the section)\n"; |
4273 | } else |
4274 | memcpy(&opl, r, sizeof(struct objc_property_list64)); |
4275 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4276 | swapStruct(opl); |
4277 | outs() << " entsize " << opl.entsize << "\n"; |
4278 | outs() << " count " << opl.count << "\n"; |
4279 | |
4280 | p += sizeof(struct objc_property_list64); |
4281 | offset += sizeof(struct objc_property_list64); |
4282 | for (j = 0; j < opl.count; j++) { |
4283 | r = get_pointer_64(p, offset, left, S, info); |
4284 | if (r == nullptr) |
4285 | return; |
4286 | memset(&op, '\0', sizeof(struct objc_property64)); |
4287 | if (left < sizeof(struct objc_property64)) { |
4288 | memcpy(&op, r, left); |
4289 | outs() << " (objc_property entends past the end of the section)\n"; |
4290 | } else |
4291 | memcpy(&op, r, sizeof(struct objc_property64)); |
4292 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4293 | swapStruct(op); |
4294 | |
4295 | outs() << "\t\t\t name "; |
4296 | sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name)__builtin_offsetof(struct objc_property64, name), S, |
4297 | info, n_value, op.name); |
4298 | if (n_value != 0) { |
4299 | if (info->verbose && sym_name != nullptr) |
4300 | outs() << sym_name; |
4301 | else |
4302 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4303 | if (op.name != 0) |
4304 | outs() << " + " << format("0x%" PRIx64"l" "x", op.name); |
4305 | } else |
4306 | outs() << format("0x%" PRIx64"l" "x", op.name); |
4307 | name = get_pointer_64(op.name + n_value, xoffset, left, xS, info); |
4308 | if (name != nullptr) |
4309 | outs() << format(" %.*s", left, name); |
4310 | outs() << "\n"; |
4311 | |
4312 | outs() << "\t\t\tattributes "; |
4313 | sym_name = |
4314 | get_symbol_64(offset + offsetof(struct objc_property64, attributes)__builtin_offsetof(struct objc_property64, attributes), S, |
4315 | info, n_value, op.attributes); |
4316 | if (n_value != 0) { |
4317 | if (info->verbose && sym_name != nullptr) |
4318 | outs() << sym_name; |
4319 | else |
4320 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4321 | if (op.attributes != 0) |
4322 | outs() << " + " << format("0x%" PRIx64"l" "x", op.attributes); |
4323 | } else |
4324 | outs() << format("0x%" PRIx64"l" "x", op.attributes); |
4325 | name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info); |
4326 | if (name != nullptr) |
4327 | outs() << format(" %.*s", left, name); |
4328 | outs() << "\n"; |
4329 | |
4330 | p += sizeof(struct objc_property64); |
4331 | offset += sizeof(struct objc_property64); |
4332 | } |
4333 | } |
4334 | |
4335 | static void print_objc_property_list32(uint32_t p, |
4336 | struct DisassembleInfo *info) { |
4337 | struct objc_property_list32 opl; |
4338 | struct objc_property32 op; |
4339 | const char *r; |
4340 | uint32_t offset, xoffset, left, j; |
4341 | SectionRef S, xS; |
4342 | const char *name; |
4343 | |
4344 | r = get_pointer_32(p, offset, left, S, info); |
4345 | if (r == nullptr) |
4346 | return; |
4347 | memset(&opl, '\0', sizeof(struct objc_property_list32)); |
4348 | if (left < sizeof(struct objc_property_list32)) { |
4349 | memcpy(&opl, r, left); |
4350 | outs() << " (objc_property_list entends past the end of the section)\n"; |
4351 | } else |
4352 | memcpy(&opl, r, sizeof(struct objc_property_list32)); |
4353 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4354 | swapStruct(opl); |
4355 | outs() << " entsize " << opl.entsize << "\n"; |
4356 | outs() << " count " << opl.count << "\n"; |
4357 | |
4358 | p += sizeof(struct objc_property_list32); |
4359 | offset += sizeof(struct objc_property_list32); |
4360 | for (j = 0; j < opl.count; j++) { |
4361 | r = get_pointer_32(p, offset, left, S, info); |
4362 | if (r == nullptr) |
4363 | return; |
4364 | memset(&op, '\0', sizeof(struct objc_property32)); |
4365 | if (left < sizeof(struct objc_property32)) { |
4366 | memcpy(&op, r, left); |
4367 | outs() << " (objc_property entends past the end of the section)\n"; |
4368 | } else |
4369 | memcpy(&op, r, sizeof(struct objc_property32)); |
4370 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4371 | swapStruct(op); |
4372 | |
4373 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", op.name); |
4374 | name = get_pointer_32(op.name, xoffset, left, xS, info); |
4375 | if (name != nullptr) |
4376 | outs() << format(" %.*s", left, name); |
4377 | outs() << "\n"; |
4378 | |
4379 | outs() << "\t\t\tattributes " << format("0x%" PRIx32"x", op.attributes); |
4380 | name = get_pointer_32(op.attributes, xoffset, left, xS, info); |
4381 | if (name != nullptr) |
4382 | outs() << format(" %.*s", left, name); |
4383 | outs() << "\n"; |
4384 | |
4385 | p += sizeof(struct objc_property32); |
4386 | offset += sizeof(struct objc_property32); |
4387 | } |
4388 | } |
4389 | |
4390 | static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info, |
4391 | bool &is_meta_class) { |
4392 | struct class_ro64_t cro; |
4393 | const char *r; |
4394 | uint32_t offset, xoffset, left; |
4395 | SectionRef S, xS; |
4396 | const char *name, *sym_name; |
4397 | uint64_t n_value; |
4398 | |
4399 | r = get_pointer_64(p, offset, left, S, info); |
4400 | if (r == nullptr || left < sizeof(struct class_ro64_t)) |
4401 | return false; |
4402 | memcpy(&cro, r, sizeof(struct class_ro64_t)); |
4403 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4404 | swapStruct(cro); |
4405 | outs() << " flags " << format("0x%" PRIx32"x", cro.flags); |
4406 | if (cro.flags & RO_META(1 << 0)) |
4407 | outs() << " RO_META"; |
4408 | if (cro.flags & RO_ROOT(1 << 1)) |
4409 | outs() << " RO_ROOT"; |
4410 | if (cro.flags & RO_HAS_CXX_STRUCTORS(1 << 2)) |
4411 | outs() << " RO_HAS_CXX_STRUCTORS"; |
4412 | outs() << "\n"; |
4413 | outs() << " instanceStart " << cro.instanceStart << "\n"; |
4414 | outs() << " instanceSize " << cro.instanceSize << "\n"; |
4415 | outs() << " reserved " << format("0x%" PRIx32"x", cro.reserved) |
4416 | << "\n"; |
4417 | outs() << " ivarLayout " << format("0x%" PRIx64"l" "x", cro.ivarLayout) |
4418 | << "\n"; |
4419 | print_layout_map64(cro.ivarLayout, info); |
4420 | |
4421 | outs() << " name "; |
4422 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name)__builtin_offsetof(struct class_ro64_t, name), S, |
4423 | info, n_value, cro.name); |
4424 | if (n_value != 0) { |
4425 | if (info->verbose && sym_name != nullptr) |
4426 | outs() << sym_name; |
4427 | else |
4428 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4429 | if (cro.name != 0) |
4430 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.name); |
4431 | } else |
4432 | outs() << format("0x%" PRIx64"l" "x", cro.name); |
4433 | name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info); |
4434 | if (name != nullptr) |
4435 | outs() << format(" %.*s", left, name); |
4436 | outs() << "\n"; |
4437 | |
4438 | outs() << " baseMethods "; |
4439 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods)__builtin_offsetof(struct class_ro64_t, baseMethods), |
4440 | S, info, n_value, cro.baseMethods); |
4441 | if (n_value != 0) { |
4442 | if (info->verbose && sym_name != nullptr) |
4443 | outs() << sym_name; |
4444 | else |
4445 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4446 | if (cro.baseMethods != 0) |
4447 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseMethods); |
4448 | } else |
4449 | outs() << format("0x%" PRIx64"l" "x", cro.baseMethods); |
4450 | outs() << " (struct method_list_t *)\n"; |
4451 | if (cro.baseMethods + n_value != 0) |
4452 | print_method_list64_t(cro.baseMethods + n_value, info, ""); |
4453 | |
4454 | outs() << " baseProtocols "; |
4455 | sym_name = |
4456 | get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols)__builtin_offsetof(struct class_ro64_t, baseProtocols), S, |
4457 | info, n_value, cro.baseProtocols); |
4458 | if (n_value != 0) { |
4459 | if (info->verbose && sym_name != nullptr) |
4460 | outs() << sym_name; |
4461 | else |
4462 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4463 | if (cro.baseProtocols != 0) |
4464 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseProtocols); |
4465 | } else |
4466 | outs() << format("0x%" PRIx64"l" "x", cro.baseProtocols); |
4467 | outs() << "\n"; |
4468 | if (cro.baseProtocols + n_value != 0) |
4469 | print_protocol_list64_t(cro.baseProtocols + n_value, info); |
4470 | |
4471 | outs() << " ivars "; |
4472 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars)__builtin_offsetof(struct class_ro64_t, ivars), S, |
4473 | info, n_value, cro.ivars); |
4474 | if (n_value != 0) { |
4475 | if (info->verbose && sym_name != nullptr) |
4476 | outs() << sym_name; |
4477 | else |
4478 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4479 | if (cro.ivars != 0) |
4480 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.ivars); |
4481 | } else |
4482 | outs() << format("0x%" PRIx64"l" "x", cro.ivars); |
4483 | outs() << "\n"; |
4484 | if (cro.ivars + n_value != 0) |
4485 | print_ivar_list64_t(cro.ivars + n_value, info); |
4486 | |
4487 | outs() << " weakIvarLayout "; |
4488 | sym_name = |
4489 | get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout)__builtin_offsetof(struct class_ro64_t, weakIvarLayout), S, |
4490 | info, n_value, cro.weakIvarLayout); |
4491 | if (n_value != 0) { |
4492 | if (info->verbose && sym_name != nullptr) |
4493 | outs() << sym_name; |
4494 | else |
4495 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4496 | if (cro.weakIvarLayout != 0) |
4497 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.weakIvarLayout); |
4498 | } else |
4499 | outs() << format("0x%" PRIx64"l" "x", cro.weakIvarLayout); |
4500 | outs() << "\n"; |
4501 | print_layout_map64(cro.weakIvarLayout + n_value, info); |
4502 | |
4503 | outs() << " baseProperties "; |
4504 | sym_name = |
4505 | get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties)__builtin_offsetof(struct class_ro64_t, baseProperties), S, |
4506 | info, n_value, cro.baseProperties); |
4507 | if (n_value != 0) { |
4508 | if (info->verbose && sym_name != nullptr) |
4509 | outs() << sym_name; |
4510 | else |
4511 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4512 | if (cro.baseProperties != 0) |
4513 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseProperties); |
4514 | } else |
4515 | outs() << format("0x%" PRIx64"l" "x", cro.baseProperties); |
4516 | outs() << "\n"; |
4517 | if (cro.baseProperties + n_value != 0) |
4518 | print_objc_property_list64(cro.baseProperties + n_value, info); |
4519 | |
4520 | is_meta_class = (cro.flags & RO_META(1 << 0)) != 0; |
4521 | return true; |
4522 | } |
4523 | |
4524 | static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info, |
4525 | bool &is_meta_class) { |
4526 | struct class_ro32_t cro; |
4527 | const char *r; |
4528 | uint32_t offset, xoffset, left; |
4529 | SectionRef S, xS; |
4530 | const char *name; |
4531 | |
4532 | r = get_pointer_32(p, offset, left, S, info); |
4533 | if (r == nullptr) |
4534 | return false; |
4535 | memset(&cro, '\0', sizeof(struct class_ro32_t)); |
4536 | if (left < sizeof(struct class_ro32_t)) { |
4537 | memcpy(&cro, r, left); |
4538 | outs() << " (class_ro_t entends past the end of the section)\n"; |
4539 | } else |
4540 | memcpy(&cro, r, sizeof(struct class_ro32_t)); |
4541 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4542 | swapStruct(cro); |
4543 | outs() << " flags " << format("0x%" PRIx32"x", cro.flags); |
4544 | if (cro.flags & RO_META(1 << 0)) |
4545 | outs() << " RO_META"; |
4546 | if (cro.flags & RO_ROOT(1 << 1)) |
4547 | outs() << " RO_ROOT"; |
4548 | if (cro.flags & RO_HAS_CXX_STRUCTORS(1 << 2)) |
4549 | outs() << " RO_HAS_CXX_STRUCTORS"; |
4550 | outs() << "\n"; |
4551 | outs() << " instanceStart " << cro.instanceStart << "\n"; |
4552 | outs() << " instanceSize " << cro.instanceSize << "\n"; |
4553 | outs() << " ivarLayout " << format("0x%" PRIx32"x", cro.ivarLayout) |
4554 | << "\n"; |
4555 | print_layout_map32(cro.ivarLayout, info); |
4556 | |
4557 | outs() << " name " << format("0x%" PRIx32"x", cro.name); |
4558 | name = get_pointer_32(cro.name, xoffset, left, xS, info); |
4559 | if (name != nullptr) |
4560 | outs() << format(" %.*s", left, name); |
4561 | outs() << "\n"; |
4562 | |
4563 | outs() << " baseMethods " |
4564 | << format("0x%" PRIx32"x", cro.baseMethods) |
4565 | << " (struct method_list_t *)\n"; |
4566 | if (cro.baseMethods != 0) |
4567 | print_method_list32_t(cro.baseMethods, info, ""); |
4568 | |
4569 | outs() << " baseProtocols " |
4570 | << format("0x%" PRIx32"x", cro.baseProtocols) << "\n"; |
4571 | if (cro.baseProtocols != 0) |
4572 | print_protocol_list32_t(cro.baseProtocols, info); |
4573 | outs() << " ivars " << format("0x%" PRIx32"x", cro.ivars) |
4574 | << "\n"; |
4575 | if (cro.ivars != 0) |
4576 | print_ivar_list32_t(cro.ivars, info); |
4577 | outs() << " weakIvarLayout " |
4578 | << format("0x%" PRIx32"x", cro.weakIvarLayout) << "\n"; |
4579 | print_layout_map32(cro.weakIvarLayout, info); |
4580 | outs() << " baseProperties " |
4581 | << format("0x%" PRIx32"x", cro.baseProperties) << "\n"; |
4582 | if (cro.baseProperties != 0) |
4583 | print_objc_property_list32(cro.baseProperties, info); |
4584 | is_meta_class = (cro.flags & RO_META(1 << 0)) != 0; |
4585 | return true; |
4586 | } |
4587 | |
4588 | static void print_class64_t(uint64_t p, struct DisassembleInfo *info) { |
4589 | struct class64_t c; |
4590 | const char *r; |
4591 | uint32_t offset, left; |
4592 | SectionRef S; |
4593 | const char *name; |
4594 | uint64_t isa_n_value, n_value; |
4595 | |
4596 | r = get_pointer_64(p, offset, left, S, info); |
4597 | if (r == nullptr || left < sizeof(struct class64_t)) |
4598 | return; |
4599 | memcpy(&c, r, sizeof(struct class64_t)); |
4600 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4601 | swapStruct(c); |
4602 | |
4603 | outs() << " isa " << format("0x%" PRIx64"l" "x", c.isa); |
4604 | name = get_symbol_64(offset + offsetof(struct class64_t, isa)__builtin_offsetof(struct class64_t, isa), S, info, |
4605 | isa_n_value, c.isa); |
4606 | if (name != nullptr) |
4607 | outs() << " " << name; |
4608 | outs() << "\n"; |
4609 | |
4610 | outs() << " superclass " << format("0x%" PRIx64"l" "x", c.superclass); |
4611 | name = get_symbol_64(offset + offsetof(struct class64_t, superclass)__builtin_offsetof(struct class64_t, superclass), S, info, |
4612 | n_value, c.superclass); |
4613 | if (name != nullptr) |
4614 | outs() << " " << name; |
4615 | else { |
4616 | name = get_dyld_bind_info_symbolname(S.getAddress() + |
4617 | offset + offsetof(struct class64_t, superclass)__builtin_offsetof(struct class64_t, superclass), info); |
4618 | if (name != nullptr) |
4619 | outs() << " " << name; |
4620 | } |
4621 | outs() << "\n"; |
4622 | |
4623 | outs() << " cache " << format("0x%" PRIx64"l" "x", c.cache); |
4624 | name = get_symbol_64(offset + offsetof(struct class64_t, cache)__builtin_offsetof(struct class64_t, cache), S, info, |
4625 | n_value, c.cache); |
4626 | if (name != nullptr) |
4627 | outs() << " " << name; |
4628 | outs() << "\n"; |
4629 | |
4630 | outs() << " vtable " << format("0x%" PRIx64"l" "x", c.vtable); |
4631 | name = get_symbol_64(offset + offsetof(struct class64_t, vtable)__builtin_offsetof(struct class64_t, vtable), S, info, |
4632 | n_value, c.vtable); |
4633 | if (name != nullptr) |
4634 | outs() << " " << name; |
4635 | outs() << "\n"; |
4636 | |
4637 | name = get_symbol_64(offset + offsetof(struct class64_t, data)__builtin_offsetof(struct class64_t, data), S, info, |
4638 | n_value, c.data); |
4639 | outs() << " data "; |
4640 | if (n_value != 0) { |
4641 | if (info->verbose && name != nullptr) |
4642 | outs() << name; |
4643 | else |
4644 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4645 | if (c.data != 0) |
4646 | outs() << " + " << format("0x%" PRIx64"l" "x", c.data); |
4647 | } else |
4648 | outs() << format("0x%" PRIx64"l" "x", c.data); |
4649 | outs() << " (struct class_ro_t *)"; |
4650 | |
4651 | // This is a Swift class if some of the low bits of the pointer are set. |
4652 | if ((c.data + n_value) & 0x7) |
4653 | outs() << " Swift class"; |
4654 | outs() << "\n"; |
4655 | bool is_meta_class; |
4656 | if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class)) |
4657 | return; |
4658 | |
4659 | if (!is_meta_class && |
4660 | c.isa + isa_n_value != p && |
4661 | c.isa + isa_n_value != 0 && |
4662 | info->depth < 100) { |
4663 | info->depth++; |
4664 | outs() << "Meta Class\n"; |
4665 | print_class64_t(c.isa + isa_n_value, info); |
4666 | } |
4667 | } |
4668 | |
4669 | static void print_class32_t(uint32_t p, struct DisassembleInfo *info) { |
4670 | struct class32_t c; |
4671 | const char *r; |
4672 | uint32_t offset, left; |
4673 | SectionRef S; |
4674 | const char *name; |
4675 | |
4676 | r = get_pointer_32(p, offset, left, S, info); |
4677 | if (r == nullptr) |
4678 | return; |
4679 | memset(&c, '\0', sizeof(struct class32_t)); |
4680 | if (left < sizeof(struct class32_t)) { |
4681 | memcpy(&c, r, left); |
4682 | outs() << " (class_t entends past the end of the section)\n"; |
4683 | } else |
4684 | memcpy(&c, r, sizeof(struct class32_t)); |
4685 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4686 | swapStruct(c); |
4687 | |
4688 | outs() << " isa " << format("0x%" PRIx32"x", c.isa); |
4689 | name = |
4690 | get_symbol_32(offset + offsetof(struct class32_t, isa)__builtin_offsetof(struct class32_t, isa), S, info, c.isa); |
4691 | if (name != nullptr) |
4692 | outs() << " " << name; |
4693 | outs() << "\n"; |
4694 | |
4695 | outs() << " superclass " << format("0x%" PRIx32"x", c.superclass); |
4696 | name = get_symbol_32(offset + offsetof(struct class32_t, superclass)__builtin_offsetof(struct class32_t, superclass), S, info, |
4697 | c.superclass); |
4698 | if (name != nullptr) |
4699 | outs() << " " << name; |
4700 | outs() << "\n"; |
4701 | |
4702 | outs() << " cache " << format("0x%" PRIx32"x", c.cache); |
4703 | name = get_symbol_32(offset + offsetof(struct class32_t, cache)__builtin_offsetof(struct class32_t, cache), S, info, |
4704 | c.cache); |
4705 | if (name != nullptr) |
4706 | outs() << " " << name; |
4707 | outs() << "\n"; |
4708 | |
4709 | outs() << " vtable " << format("0x%" PRIx32"x", c.vtable); |
4710 | name = get_symbol_32(offset + offsetof(struct class32_t, vtable)__builtin_offsetof(struct class32_t, vtable), S, info, |
4711 | c.vtable); |
4712 | if (name != nullptr) |
4713 | outs() << " " << name; |
4714 | outs() << "\n"; |
4715 | |
4716 | name = |
4717 | get_symbol_32(offset + offsetof(struct class32_t, data)__builtin_offsetof(struct class32_t, data), S, info, c.data); |
4718 | outs() << " data " << format("0x%" PRIx32"x", c.data) |
4719 | << " (struct class_ro_t *)"; |
4720 | |
4721 | // This is a Swift class if some of the low bits of the pointer are set. |
4722 | if (c.data & 0x3) |
4723 | outs() << " Swift class"; |
4724 | outs() << "\n"; |
4725 | bool is_meta_class; |
4726 | if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class)) |
4727 | return; |
4728 | |
4729 | if (!is_meta_class) { |
4730 | outs() << "Meta Class\n"; |
4731 | print_class32_t(c.isa, info); |
4732 | } |
4733 | } |
4734 | |
4735 | static void print_objc_class_t(struct objc_class_t *objc_class, |
4736 | struct DisassembleInfo *info) { |
4737 | uint32_t offset, left, xleft; |
4738 | const char *name, *p, *ivar_list; |
4739 | SectionRef S; |
4740 | int32_t i; |
4741 | struct objc_ivar_list_t objc_ivar_list; |
4742 | struct objc_ivar_t ivar; |
4743 | |
4744 | outs() << "\t\t isa " << format("0x%08" PRIx32"x", objc_class->isa); |
4745 | if (info->verbose && CLS_GETINFO(objc_class, CLS_META)((objc_class)->info & (0x2))) { |
4746 | name = get_pointer_32(objc_class->isa, offset, left, S, info, true); |
4747 | if (name != nullptr) |
4748 | outs() << format(" %.*s", left, name); |
4749 | else |
4750 | outs() << " (not in an __OBJC section)"; |
4751 | } |
4752 | outs() << "\n"; |
4753 | |
4754 | outs() << "\t super_class " |
4755 | << format("0x%08" PRIx32"x", objc_class->super_class); |
4756 | if (info->verbose) { |
4757 | name = get_pointer_32(objc_class->super_class, offset, left, S, info, true); |
4758 | if (name != nullptr) |
4759 | outs() << format(" %.*s", left, name); |
4760 | else |
4761 | outs() << " (not in an __OBJC section)"; |
4762 | } |
4763 | outs() << "\n"; |
4764 | |
4765 | outs() << "\t\t name " << format("0x%08" PRIx32"x", objc_class->name); |
4766 | if (info->verbose) { |
4767 | name = get_pointer_32(objc_class->name, offset, left, S, info, true); |
4768 | if (name != nullptr) |
4769 | outs() << format(" %.*s", left, name); |
4770 | else |
4771 | outs() << " (not in an __OBJC section)"; |
4772 | } |
4773 | outs() << "\n"; |
4774 | |
4775 | outs() << "\t\t version " << format("0x%08" PRIx32"x", objc_class->version) |
4776 | << "\n"; |
4777 | |
4778 | outs() << "\t\t info " << format("0x%08" PRIx32"x", objc_class->info); |
4779 | if (info->verbose) { |
4780 | if (CLS_GETINFO(objc_class, CLS_CLASS)((objc_class)->info & (0x1))) |
4781 | outs() << " CLS_CLASS"; |
4782 | else if (CLS_GETINFO(objc_class, CLS_META)((objc_class)->info & (0x2))) |
4783 | outs() << " CLS_META"; |
4784 | } |
4785 | outs() << "\n"; |
4786 | |
4787 | outs() << "\t instance_size " |
4788 | << format("0x%08" PRIx32"x", objc_class->instance_size) << "\n"; |
4789 | |
4790 | p = get_pointer_32(objc_class->ivars, offset, left, S, info, true); |
4791 | outs() << "\t\t ivars " << format("0x%08" PRIx32"x", objc_class->ivars); |
4792 | if (p != nullptr) { |
4793 | if (left > sizeof(struct objc_ivar_list_t)) { |
4794 | outs() << "\n"; |
4795 | memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t)); |
4796 | } else { |
4797 | outs() << " (entends past the end of the section)\n"; |
4798 | memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t)); |
4799 | memcpy(&objc_ivar_list, p, left); |
4800 | } |
4801 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4802 | swapStruct(objc_ivar_list); |
4803 | outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n"; |
4804 | ivar_list = p + sizeof(struct objc_ivar_list_t); |
4805 | for (i = 0; i < objc_ivar_list.ivar_count; i++) { |
4806 | if ((i + 1) * sizeof(struct objc_ivar_t) > left) { |
4807 | outs() << "\t\t remaining ivar's extend past the of the section\n"; |
4808 | break; |
4809 | } |
4810 | memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t), |
4811 | sizeof(struct objc_ivar_t)); |
4812 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4813 | swapStruct(ivar); |
4814 | |
4815 | outs() << "\t\t\tivar_name " << format("0x%08" PRIx32"x", ivar.ivar_name); |
4816 | if (info->verbose) { |
4817 | name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true); |
4818 | if (name != nullptr) |
4819 | outs() << format(" %.*s", xleft, name); |
4820 | else |
4821 | outs() << " (not in an __OBJC section)"; |
4822 | } |
4823 | outs() << "\n"; |
4824 | |
4825 | outs() << "\t\t\tivar_type " << format("0x%08" PRIx32"x", ivar.ivar_type); |
4826 | if (info->verbose) { |
4827 | name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true); |
4828 | if (name != nullptr) |
4829 | outs() << format(" %.*s", xleft, name); |
4830 | else |
4831 | outs() << " (not in an __OBJC section)"; |
4832 | } |
4833 | outs() << "\n"; |
4834 | |
4835 | outs() << "\t\t ivar_offset " |
4836 | << format("0x%08" PRIx32"x", ivar.ivar_offset) << "\n"; |
4837 | } |
4838 | } else { |
4839 | outs() << " (not in an __OBJC section)\n"; |
4840 | } |
4841 | |
4842 | outs() << "\t\t methods " << format("0x%08" PRIx32"x", objc_class->methodLists); |
4843 | if (print_method_list(objc_class->methodLists, info)) |
4844 | outs() << " (not in an __OBJC section)\n"; |
4845 | |
4846 | outs() << "\t\t cache " << format("0x%08" PRIx32"x", objc_class->cache) |
4847 | << "\n"; |
4848 | |
4849 | outs() << "\t\tprotocols " << format("0x%08" PRIx32"x", objc_class->protocols); |
4850 | if (print_protocol_list(objc_class->protocols, 16, info)) |
4851 | outs() << " (not in an __OBJC section)\n"; |
4852 | } |
4853 | |
4854 | static void print_objc_objc_category_t(struct objc_category_t *objc_category, |
4855 | struct DisassembleInfo *info) { |
4856 | uint32_t offset, left; |
4857 | const char *name; |
4858 | SectionRef S; |
4859 | |
4860 | outs() << "\t category name " |
4861 | << format("0x%08" PRIx32"x", objc_category->category_name); |
4862 | if (info->verbose) { |
4863 | name = get_pointer_32(objc_category->category_name, offset, left, S, info, |
4864 | true); |
4865 | if (name != nullptr) |
4866 | outs() << format(" %.*s", left, name); |
4867 | else |
4868 | outs() << " (not in an __OBJC section)"; |
4869 | } |
4870 | outs() << "\n"; |
4871 | |
4872 | outs() << "\t\t class name " |
4873 | << format("0x%08" PRIx32"x", objc_category->class_name); |
4874 | if (info->verbose) { |
4875 | name = |
4876 | get_pointer_32(objc_category->class_name, offset, left, S, info, true); |
4877 | if (name != nullptr) |
4878 | outs() << format(" %.*s", left, name); |
4879 | else |
4880 | outs() << " (not in an __OBJC section)"; |
4881 | } |
4882 | outs() << "\n"; |
4883 | |
4884 | outs() << "\t instance methods " |
4885 | << format("0x%08" PRIx32"x", objc_category->instance_methods); |
4886 | if (print_method_list(objc_category->instance_methods, info)) |
4887 | outs() << " (not in an __OBJC section)\n"; |
4888 | |
4889 | outs() << "\t class methods " |
4890 | << format("0x%08" PRIx32"x", objc_category->class_methods); |
4891 | if (print_method_list(objc_category->class_methods, info)) |
4892 | outs() << " (not in an __OBJC section)\n"; |
4893 | } |
4894 | |
4895 | static void print_category64_t(uint64_t p, struct DisassembleInfo *info) { |
4896 | struct category64_t c; |
4897 | const char *r; |
4898 | uint32_t offset, xoffset, left; |
4899 | SectionRef S, xS; |
4900 | const char *name, *sym_name; |
4901 | uint64_t n_value; |
4902 | |
4903 | r = get_pointer_64(p, offset, left, S, info); |
4904 | if (r == nullptr) |
4905 | return; |
4906 | memset(&c, '\0', sizeof(struct category64_t)); |
4907 | if (left < sizeof(struct category64_t)) { |
4908 | memcpy(&c, r, left); |
4909 | outs() << " (category_t entends past the end of the section)\n"; |
4910 | } else |
4911 | memcpy(&c, r, sizeof(struct category64_t)); |
4912 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4913 | swapStruct(c); |
4914 | |
4915 | outs() << " name "; |
4916 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, name)__builtin_offsetof(struct category64_t, name), S, |
4917 | info, n_value, c.name); |
4918 | if (n_value != 0) { |
4919 | if (info->verbose && sym_name != nullptr) |
4920 | outs() << sym_name; |
4921 | else |
4922 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4923 | if (c.name != 0) |
4924 | outs() << " + " << format("0x%" PRIx64"l" "x", c.name); |
4925 | } else |
4926 | outs() << format("0x%" PRIx64"l" "x", c.name); |
4927 | name = get_pointer_64(c.name + n_value, xoffset, left, xS, info); |
4928 | if (name != nullptr) |
4929 | outs() << format(" %.*s", left, name); |
4930 | outs() << "\n"; |
4931 | |
4932 | outs() << " cls "; |
4933 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls)__builtin_offsetof(struct category64_t, cls), S, info, |
4934 | n_value, c.cls); |
4935 | if (n_value != 0) { |
4936 | if (info->verbose && sym_name != nullptr) |
4937 | outs() << sym_name; |
4938 | else |
4939 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4940 | if (c.cls != 0) |
4941 | outs() << " + " << format("0x%" PRIx64"l" "x", c.cls); |
4942 | } else |
4943 | outs() << format("0x%" PRIx64"l" "x", c.cls); |
4944 | outs() << "\n"; |
4945 | if (c.cls + n_value != 0) |
4946 | print_class64_t(c.cls + n_value, info); |
4947 | |
4948 | outs() << " instanceMethods "; |
4949 | sym_name = |
4950 | get_symbol_64(offset + offsetof(struct category64_t, instanceMethods)__builtin_offsetof(struct category64_t, instanceMethods), S, |
4951 | info, n_value, c.instanceMethods); |
4952 | if (n_value != 0) { |
4953 | if (info->verbose && sym_name != nullptr) |
4954 | outs() << sym_name; |
4955 | else |
4956 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4957 | if (c.instanceMethods != 0) |
4958 | outs() << " + " << format("0x%" PRIx64"l" "x", c.instanceMethods); |
4959 | } else |
4960 | outs() << format("0x%" PRIx64"l" "x", c.instanceMethods); |
4961 | outs() << "\n"; |
4962 | if (c.instanceMethods + n_value != 0) |
4963 | print_method_list64_t(c.instanceMethods + n_value, info, ""); |
4964 | |
4965 | outs() << " classMethods "; |
4966 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods)__builtin_offsetof(struct category64_t, classMethods), |
4967 | S, info, n_value, c.classMethods); |
4968 | if (n_value != 0) { |
4969 | if (info->verbose && sym_name != nullptr) |
4970 | outs() << sym_name; |
4971 | else |
4972 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4973 | if (c.classMethods != 0) |
4974 | outs() << " + " << format("0x%" PRIx64"l" "x", c.classMethods); |
4975 | } else |
4976 | outs() << format("0x%" PRIx64"l" "x", c.classMethods); |
4977 | outs() << "\n"; |
4978 | if (c.classMethods + n_value != 0) |
4979 | print_method_list64_t(c.classMethods + n_value, info, ""); |
4980 | |
4981 | outs() << " protocols "; |
4982 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols)__builtin_offsetof(struct category64_t, protocols), S, |
4983 | info, n_value, c.protocols); |
4984 | if (n_value != 0) { |
4985 | if (info->verbose && sym_name != nullptr) |
4986 | outs() << sym_name; |
4987 | else |
4988 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4989 | if (c.protocols != 0) |
4990 | outs() << " + " << format("0x%" PRIx64"l" "x", c.protocols); |
4991 | } else |
4992 | outs() << format("0x%" PRIx64"l" "x", c.protocols); |
4993 | outs() << "\n"; |
4994 | if (c.protocols + n_value != 0) |
4995 | print_protocol_list64_t(c.protocols + n_value, info); |
4996 | |
4997 | outs() << "instanceProperties "; |
4998 | sym_name = |
4999 | get_symbol_64(offset + offsetof(struct category64_t, instanceProperties)__builtin_offsetof(struct category64_t, instanceProperties), |
5000 | S, info, n_value, c.instanceProperties); |
5001 | if (n_value != 0) { |
5002 | if (info->verbose && sym_name != nullptr) |
5003 | outs() << sym_name; |
5004 | else |
5005 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5006 | if (c.instanceProperties != 0) |
5007 | outs() << " + " << format("0x%" PRIx64"l" "x", c.instanceProperties); |
5008 | } else |
5009 | outs() << format("0x%" PRIx64"l" "x", c.instanceProperties); |
5010 | outs() << "\n"; |
5011 | if (c.instanceProperties + n_value != 0) |
5012 | print_objc_property_list64(c.instanceProperties + n_value, info); |
5013 | } |
5014 | |
5015 | static void print_category32_t(uint32_t p, struct DisassembleInfo *info) { |
5016 | struct category32_t c; |
5017 | const char *r; |
5018 | uint32_t offset, left; |
5019 | SectionRef S, xS; |
5020 | const char *name; |
5021 | |
5022 | r = get_pointer_32(p, offset, left, S, info); |
5023 | if (r == nullptr) |
5024 | return; |
5025 | memset(&c, '\0', sizeof(struct category32_t)); |
5026 | if (left < sizeof(struct category32_t)) { |
5027 | memcpy(&c, r, left); |
5028 | outs() << " (category_t entends past the end of the section)\n"; |
5029 | } else |
5030 | memcpy(&c, r, sizeof(struct category32_t)); |
5031 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5032 | swapStruct(c); |
5033 | |
5034 | outs() << " name " << format("0x%" PRIx32"x", c.name); |
5035 | name = get_symbol_32(offset + offsetof(struct category32_t, name)__builtin_offsetof(struct category32_t, name), S, info, |
5036 | c.name); |
5037 | if (name) |
5038 | outs() << " " << name; |
5039 | outs() << "\n"; |
5040 | |
5041 | outs() << " cls " << format("0x%" PRIx32"x", c.cls) << "\n"; |
5042 | if (c.cls != 0) |
5043 | print_class32_t(c.cls, info); |
5044 | outs() << " instanceMethods " << format("0x%" PRIx32"x", c.instanceMethods) |
5045 | << "\n"; |
5046 | if (c.instanceMethods != 0) |
5047 | print_method_list32_t(c.instanceMethods, info, ""); |
5048 | outs() << " classMethods " << format("0x%" PRIx32"x", c.classMethods) |
5049 | << "\n"; |
5050 | if (c.classMethods != 0) |
5051 | print_method_list32_t(c.classMethods, info, ""); |
5052 | outs() << " protocols " << format("0x%" PRIx32"x", c.protocols) << "\n"; |
5053 | if (c.protocols != 0) |
5054 | print_protocol_list32_t(c.protocols, info); |
5055 | outs() << "instanceProperties " << format("0x%" PRIx32"x", c.instanceProperties) |
5056 | << "\n"; |
5057 | if (c.instanceProperties != 0) |
5058 | print_objc_property_list32(c.instanceProperties, info); |
5059 | } |
5060 | |
5061 | static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) { |
5062 | uint32_t i, left, offset, xoffset; |
5063 | uint64_t p, n_value; |
5064 | struct message_ref64 mr; |
5065 | const char *name, *sym_name; |
5066 | const char *r; |
5067 | SectionRef xS; |
5068 | |
5069 | if (S == SectionRef()) |
5070 | return; |
5071 | |
5072 | StringRef SectName; |
5073 | S.getName(SectName); |
5074 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5075 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5076 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5077 | offset = 0; |
5078 | for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { |
5079 | p = S.getAddress() + i; |
5080 | r = get_pointer_64(p, offset, left, S, info); |
5081 | if (r == nullptr) |
5082 | return; |
5083 | memset(&mr, '\0', sizeof(struct message_ref64)); |
5084 | if (left < sizeof(struct message_ref64)) { |
5085 | memcpy(&mr, r, left); |
5086 | outs() << " (message_ref entends past the end of the section)\n"; |
5087 | } else |
5088 | memcpy(&mr, r, sizeof(struct message_ref64)); |
5089 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5090 | swapStruct(mr); |
5091 | |
5092 | outs() << " imp "; |
5093 | name = get_symbol_64(offset + offsetof(struct message_ref64, imp)__builtin_offsetof(struct message_ref64, imp), S, info, |
5094 | n_value, mr.imp); |
5095 | if (n_value != 0) { |
5096 | outs() << format("0x%" PRIx64"l" "x", n_value) << " "; |
5097 | if (mr.imp != 0) |
5098 | outs() << "+ " << format("0x%" PRIx64"l" "x", mr.imp) << " "; |
5099 | } else |
5100 | outs() << format("0x%" PRIx64"l" "x", mr.imp) << " "; |
5101 | if (name != nullptr) |
5102 | outs() << " " << name; |
5103 | outs() << "\n"; |
5104 | |
5105 | outs() << " sel "; |
5106 | sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel)__builtin_offsetof(struct message_ref64, sel), S, |
5107 | info, n_value, mr.sel); |
5108 | if (n_value != 0) { |
5109 | if (info->verbose && sym_name != nullptr) |
5110 | outs() << sym_name; |
5111 | else |
5112 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5113 | if (mr.sel != 0) |
5114 | outs() << " + " << format("0x%" PRIx64"l" "x", mr.sel); |
5115 | } else |
5116 | outs() << format("0x%" PRIx64"l" "x", mr.sel); |
5117 | name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info); |
5118 | if (name != nullptr) |
5119 | outs() << format(" %.*s", left, name); |
5120 | outs() << "\n"; |
5121 | |
5122 | offset += sizeof(struct message_ref64); |
5123 | } |
5124 | } |
5125 | |
5126 | static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) { |
5127 | uint32_t i, left, offset, xoffset, p; |
5128 | struct message_ref32 mr; |
5129 | const char *name, *r; |
5130 | SectionRef xS; |
5131 | |
5132 | if (S == SectionRef()) |
5133 | return; |
5134 | |
5135 | StringRef SectName; |
5136 | S.getName(SectName); |
5137 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5138 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5139 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5140 | offset = 0; |
5141 | for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { |
5142 | p = S.getAddress() + i; |
5143 | r = get_pointer_32(p, offset, left, S, info); |
5144 | if (r == nullptr) |
5145 | return; |
5146 | memset(&mr, '\0', sizeof(struct message_ref32)); |
5147 | if (left < sizeof(struct message_ref32)) { |
5148 | memcpy(&mr, r, left); |
5149 | outs() << " (message_ref entends past the end of the section)\n"; |
5150 | } else |
5151 | memcpy(&mr, r, sizeof(struct message_ref32)); |
5152 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5153 | swapStruct(mr); |
5154 | |
5155 | outs() << " imp " << format("0x%" PRIx32"x", mr.imp); |
5156 | name = get_symbol_32(offset + offsetof(struct message_ref32, imp)__builtin_offsetof(struct message_ref32, imp), S, info, |
5157 | mr.imp); |
5158 | if (name != nullptr) |
5159 | outs() << " " << name; |
5160 | outs() << "\n"; |
5161 | |
5162 | outs() << " sel " << format("0x%" PRIx32"x", mr.sel); |
5163 | name = get_pointer_32(mr.sel, xoffset, left, xS, info); |
5164 | if (name != nullptr) |
5165 | outs() << " " << name; |
5166 | outs() << "\n"; |
5167 | |
5168 | offset += sizeof(struct message_ref32); |
5169 | } |
5170 | } |
5171 | |
5172 | static void print_image_info64(SectionRef S, struct DisassembleInfo *info) { |
5173 | uint32_t left, offset, swift_version; |
5174 | uint64_t p; |
5175 | struct objc_image_info64 o; |
5176 | const char *r; |
5177 | |
5178 | if (S == SectionRef()) |
5179 | return; |
5180 | |
5181 | StringRef SectName; |
5182 | S.getName(SectName); |
5183 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5184 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5185 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5186 | p = S.getAddress(); |
5187 | r = get_pointer_64(p, offset, left, S, info); |
5188 | if (r == nullptr) |
5189 | return; |
5190 | memset(&o, '\0', sizeof(struct objc_image_info64)); |
5191 | if (left < sizeof(struct objc_image_info64)) { |
5192 | memcpy(&o, r, left); |
5193 | outs() << " (objc_image_info entends past the end of the section)\n"; |
5194 | } else |
5195 | memcpy(&o, r, sizeof(struct objc_image_info64)); |
5196 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5197 | swapStruct(o); |
5198 | outs() << " version " << o.version << "\n"; |
5199 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
5200 | if (o.flags & OBJC_IMAGE_IS_REPLACEMENT(1 << 0)) |
5201 | outs() << " OBJC_IMAGE_IS_REPLACEMENT"; |
5202 | if (o.flags & OBJC_IMAGE_SUPPORTS_GC(1 << 1)) |
5203 | outs() << " OBJC_IMAGE_SUPPORTS_GC"; |
5204 | swift_version = (o.flags >> 8) & 0xff; |
5205 | if (swift_version != 0) { |
5206 | if (swift_version == 1) |
5207 | outs() << " Swift 1.0"; |
5208 | else if (swift_version == 2) |
5209 | outs() << " Swift 1.1"; |
5210 | else |
5211 | outs() << " unknown future Swift version (" << swift_version << ")"; |
5212 | } |
5213 | outs() << "\n"; |
5214 | } |
5215 | |
5216 | static void print_image_info32(SectionRef S, struct DisassembleInfo *info) { |
5217 | uint32_t left, offset, swift_version, p; |
5218 | struct objc_image_info32 o; |
5219 | const char *r; |
5220 | |
5221 | if (S == SectionRef()) |
5222 | return; |
5223 | |
5224 | StringRef SectName; |
5225 | S.getName(SectName); |
5226 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5227 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5228 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5229 | p = S.getAddress(); |
5230 | r = get_pointer_32(p, offset, left, S, info); |
5231 | if (r == nullptr) |
5232 | return; |
5233 | memset(&o, '\0', sizeof(struct objc_image_info32)); |
5234 | if (left < sizeof(struct objc_image_info32)) { |
5235 | memcpy(&o, r, left); |
5236 | outs() << " (objc_image_info entends past the end of the section)\n"; |
5237 | } else |
5238 | memcpy(&o, r, sizeof(struct objc_image_info32)); |
5239 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5240 | swapStruct(o); |
5241 | outs() << " version " << o.version << "\n"; |
5242 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
5243 | if (o.flags & OBJC_IMAGE_IS_REPLACEMENT(1 << 0)) |
5244 | outs() << " OBJC_IMAGE_IS_REPLACEMENT"; |
5245 | if (o.flags & OBJC_IMAGE_SUPPORTS_GC(1 << 1)) |
5246 | outs() << " OBJC_IMAGE_SUPPORTS_GC"; |
5247 | swift_version = (o.flags >> 8) & 0xff; |
5248 | if (swift_version != 0) { |
5249 | if (swift_version == 1) |
5250 | outs() << " Swift 1.0"; |
5251 | else if (swift_version == 2) |
5252 | outs() << " Swift 1.1"; |
5253 | else |
5254 | outs() << " unknown future Swift version (" << swift_version << ")"; |
5255 | } |
5256 | outs() << "\n"; |
5257 | } |
5258 | |
5259 | static void print_image_info(SectionRef S, struct DisassembleInfo *info) { |
5260 | uint32_t left, offset, p; |
5261 | struct imageInfo_t o; |
5262 | const char *r; |
5263 | |
5264 | StringRef SectName; |
5265 | S.getName(SectName); |
5266 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5267 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5268 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5269 | p = S.getAddress(); |
5270 | r = get_pointer_32(p, offset, left, S, info); |
5271 | if (r == nullptr) |
5272 | return; |
5273 | memset(&o, '\0', sizeof(struct imageInfo_t)); |
5274 | if (left < sizeof(struct imageInfo_t)) { |
5275 | memcpy(&o, r, left); |
5276 | outs() << " (imageInfo entends past the end of the section)\n"; |
5277 | } else |
5278 | memcpy(&o, r, sizeof(struct imageInfo_t)); |
5279 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5280 | swapStruct(o); |
5281 | outs() << " version " << o.version << "\n"; |
5282 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
5283 | if (o.flags & 0x1) |
5284 | outs() << " F&C"; |
5285 | if (o.flags & 0x2) |
5286 | outs() << " GC"; |
5287 | if (o.flags & 0x4) |
5288 | outs() << " GC-only"; |
5289 | else |
5290 | outs() << " RR"; |
5291 | outs() << "\n"; |
5292 | } |
5293 | |
5294 | static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) { |
5295 | SymbolAddressMap AddrMap; |
5296 | if (verbose) |
5297 | CreateSymbolAddressMap(O, &AddrMap); |
5298 | |
5299 | std::vector<SectionRef> Sections; |
5300 | for (const SectionRef &Section : O->sections()) { |
5301 | StringRef SectName; |
5302 | Section.getName(SectName); |
5303 | Sections.push_back(Section); |
5304 | } |
5305 | |
5306 | struct DisassembleInfo info; |
5307 | // Set up the block of info used by the Symbolizer call backs. |
5308 | info.verbose = verbose; |
5309 | info.O = O; |
5310 | info.AddrMap = &AddrMap; |
5311 | info.Sections = &Sections; |
5312 | info.class_name = nullptr; |
5313 | info.selector_name = nullptr; |
5314 | info.method = nullptr; |
5315 | info.demangled_name = nullptr; |
5316 | info.bindtable = nullptr; |
5317 | info.adrp_addr = 0; |
5318 | info.adrp_inst = 0; |
5319 | |
5320 | info.depth = 0; |
5321 | SectionRef CL = get_section(O, "__OBJC2", "__class_list"); |
5322 | if (CL == SectionRef()) |
5323 | CL = get_section(O, "__DATA", "__objc_classlist"); |
5324 | if (CL == SectionRef()) |
5325 | CL = get_section(O, "__DATA_CONST", "__objc_classlist"); |
5326 | if (CL == SectionRef()) |
5327 | CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); |
5328 | info.S = CL; |
5329 | walk_pointer_list_64("class", CL, O, &info, print_class64_t); |
5330 | |
5331 | SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); |
5332 | if (CR == SectionRef()) |
5333 | CR = get_section(O, "__DATA", "__objc_classrefs"); |
5334 | if (CR == SectionRef()) |
5335 | CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); |
5336 | if (CR == SectionRef()) |
5337 | CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); |
5338 | info.S = CR; |
5339 | walk_pointer_list_64("class refs", CR, O, &info, nullptr); |
5340 | |
5341 | SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); |
5342 | if (SR == SectionRef()) |
5343 | SR = get_section(O, "__DATA", "__objc_superrefs"); |
5344 | if (SR == SectionRef()) |
5345 | SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); |
5346 | if (SR == SectionRef()) |
5347 | SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); |
5348 | info.S = SR; |
5349 | walk_pointer_list_64("super refs", SR, O, &info, nullptr); |
5350 | |
5351 | SectionRef CA = get_section(O, "__OBJC2", "__category_list"); |
5352 | if (CA == SectionRef()) |
5353 | CA = get_section(O, "__DATA", "__objc_catlist"); |
5354 | if (CA == SectionRef()) |
5355 | CA = get_section(O, "__DATA_CONST", "__objc_catlist"); |
5356 | if (CA == SectionRef()) |
5357 | CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); |
5358 | info.S = CA; |
5359 | walk_pointer_list_64("category", CA, O, &info, print_category64_t); |
5360 | |
5361 | SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); |
5362 | if (PL == SectionRef()) |
5363 | PL = get_section(O, "__DATA", "__objc_protolist"); |
5364 | if (PL == SectionRef()) |
5365 | PL = get_section(O, "__DATA_CONST", "__objc_protolist"); |
5366 | if (PL == SectionRef()) |
5367 | PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); |
5368 | info.S = PL; |
5369 | walk_pointer_list_64("protocol", PL, O, &info, nullptr); |
5370 | |
5371 | SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); |
5372 | if (MR == SectionRef()) |
5373 | MR = get_section(O, "__DATA", "__objc_msgrefs"); |
5374 | if (MR == SectionRef()) |
5375 | MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); |
5376 | if (MR == SectionRef()) |
5377 | MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); |
5378 | info.S = MR; |
5379 | print_message_refs64(MR, &info); |
5380 | |
5381 | SectionRef II = get_section(O, "__OBJC2", "__image_info"); |
5382 | if (II == SectionRef()) |
5383 | II = get_section(O, "__DATA", "__objc_imageinfo"); |
5384 | if (II == SectionRef()) |
5385 | II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); |
5386 | if (II == SectionRef()) |
5387 | II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); |
5388 | info.S = II; |
5389 | print_image_info64(II, &info); |
5390 | } |
5391 | |
5392 | static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) { |
5393 | SymbolAddressMap AddrMap; |
5394 | if (verbose) |
5395 | CreateSymbolAddressMap(O, &AddrMap); |
5396 | |
5397 | std::vector<SectionRef> Sections; |
5398 | for (const SectionRef &Section : O->sections()) { |
5399 | StringRef SectName; |
5400 | Section.getName(SectName); |
5401 | Sections.push_back(Section); |
5402 | } |
5403 | |
5404 | struct DisassembleInfo info; |
5405 | // Set up the block of info used by the Symbolizer call backs. |
5406 | info.verbose = verbose; |
5407 | info.O = O; |
5408 | info.AddrMap = &AddrMap; |
5409 | info.Sections = &Sections; |
5410 | info.class_name = nullptr; |
5411 | info.selector_name = nullptr; |
5412 | info.method = nullptr; |
5413 | info.demangled_name = nullptr; |
5414 | info.bindtable = nullptr; |
5415 | info.adrp_addr = 0; |
5416 | info.adrp_inst = 0; |
5417 | |
5418 | SectionRef CL = get_section(O, "__OBJC2", "__class_list"); |
5419 | if (CL == SectionRef()) |
5420 | CL = get_section(O, "__DATA", "__objc_classlist"); |
5421 | if (CL == SectionRef()) |
5422 | CL = get_section(O, "__DATA_CONST", "__objc_classlist"); |
5423 | if (CL == SectionRef()) |
5424 | CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); |
5425 | info.S = CL; |
5426 | walk_pointer_list_32("class", CL, O, &info, print_class32_t); |
5427 | |
5428 | SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); |
5429 | if (CR == SectionRef()) |
5430 | CR = get_section(O, "__DATA", "__objc_classrefs"); |
5431 | if (CR == SectionRef()) |
5432 | CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); |
5433 | if (CR == SectionRef()) |
5434 | CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); |
5435 | info.S = CR; |
5436 | walk_pointer_list_32("class refs", CR, O, &info, nullptr); |
5437 | |
5438 | SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); |
5439 | if (SR == SectionRef()) |
5440 | SR = get_section(O, "__DATA", "__objc_superrefs"); |
5441 | if (SR == SectionRef()) |
5442 | SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); |
5443 | if (SR == SectionRef()) |
5444 | SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); |
5445 | info.S = SR; |
5446 | walk_pointer_list_32("super refs", SR, O, &info, nullptr); |
5447 | |
5448 | SectionRef CA = get_section(O, "__OBJC2", "__category_list"); |
5449 | if (CA == SectionRef()) |
5450 | CA = get_section(O, "__DATA", "__objc_catlist"); |
5451 | if (CA == SectionRef()) |
5452 | CA = get_section(O, "__DATA_CONST", "__objc_catlist"); |
5453 | if (CA == SectionRef()) |
5454 | CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); |
5455 | info.S = CA; |
5456 | walk_pointer_list_32("category", CA, O, &info, print_category32_t); |
5457 | |
5458 | SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); |
5459 | if (PL == SectionRef()) |
5460 | PL = get_section(O, "__DATA", "__objc_protolist"); |
5461 | if (PL == SectionRef()) |
5462 | PL = get_section(O, "__DATA_CONST", "__objc_protolist"); |
5463 | if (PL == SectionRef()) |
5464 | PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); |
5465 | info.S = PL; |
5466 | walk_pointer_list_32("protocol", PL, O, &info, nullptr); |
5467 | |
5468 | SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); |
5469 | if (MR == SectionRef()) |
5470 | MR = get_section(O, "__DATA", "__objc_msgrefs"); |
5471 | if (MR == SectionRef()) |
5472 | MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); |
5473 | if (MR == SectionRef()) |
5474 | MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); |
5475 | info.S = MR; |
5476 | print_message_refs32(MR, &info); |
5477 | |
5478 | SectionRef II = get_section(O, "__OBJC2", "__image_info"); |
5479 | if (II == SectionRef()) |
5480 | II = get_section(O, "__DATA", "__objc_imageinfo"); |
5481 | if (II == SectionRef()) |
5482 | II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); |
5483 | if (II == SectionRef()) |
5484 | II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); |
5485 | info.S = II; |
5486 | print_image_info32(II, &info); |
5487 | } |
5488 | |
5489 | static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) { |
5490 | uint32_t i, j, p, offset, xoffset, left, defs_left, def; |
5491 | const char *r, *name, *defs; |
5492 | struct objc_module_t module; |
5493 | SectionRef S, xS; |
5494 | struct objc_symtab_t symtab; |
5495 | struct objc_class_t objc_class; |
5496 | struct objc_category_t objc_category; |
5497 | |
5498 | outs() << "Objective-C segment\n"; |
5499 | S = get_section(O, "__OBJC", "__module_info"); |
5500 | if (S == SectionRef()) |
5501 | return false; |
5502 | |
5503 | SymbolAddressMap AddrMap; |
5504 | if (verbose) |
5505 | CreateSymbolAddressMap(O, &AddrMap); |
5506 | |
5507 | std::vector<SectionRef> Sections; |
5508 | for (const SectionRef &Section : O->sections()) { |
5509 | StringRef SectName; |
5510 | Section.getName(SectName); |
5511 | Sections.push_back(Section); |
5512 | } |
5513 | |
5514 | struct DisassembleInfo info; |
5515 | // Set up the block of info used by the Symbolizer call backs. |
5516 | info.verbose = verbose; |
5517 | info.O = O; |
5518 | info.AddrMap = &AddrMap; |
5519 | info.Sections = &Sections; |
5520 | info.class_name = nullptr; |
5521 | info.selector_name = nullptr; |
5522 | info.method = nullptr; |
5523 | info.demangled_name = nullptr; |
5524 | info.bindtable = nullptr; |
5525 | info.adrp_addr = 0; |
5526 | info.adrp_inst = 0; |
5527 | |
5528 | for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) { |
5529 | p = S.getAddress() + i; |
5530 | r = get_pointer_32(p, offset, left, S, &info, true); |
5531 | if (r == nullptr) |
5532 | return true; |
5533 | memset(&module, '\0', sizeof(struct objc_module_t)); |
5534 | if (left < sizeof(struct objc_module_t)) { |
5535 | memcpy(&module, r, left); |
5536 | outs() << " (module extends past end of __module_info section)\n"; |
5537 | } else |
5538 | memcpy(&module, r, sizeof(struct objc_module_t)); |
5539 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5540 | swapStruct(module); |
5541 | |
5542 | outs() << "Module " << format("0x%" PRIx32"x", p) << "\n"; |
5543 | outs() << " version " << module.version << "\n"; |
5544 | outs() << " size " << module.size << "\n"; |
5545 | outs() << " name "; |
5546 | name = get_pointer_32(module.name, xoffset, left, xS, &info, true); |
5547 | if (name != nullptr) |
5548 | outs() << format("%.*s", left, name); |
5549 | else |
5550 | outs() << format("0x%08" PRIx32"x", module.name) |
5551 | << "(not in an __OBJC section)"; |
5552 | outs() << "\n"; |
5553 | |
5554 | r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true); |
5555 | if (module.symtab == 0 || r == nullptr) { |
5556 | outs() << " symtab " << format("0x%08" PRIx32"x", module.symtab) |
5557 | << " (not in an __OBJC section)\n"; |
5558 | continue; |
5559 | } |
5560 | outs() << " symtab " << format("0x%08" PRIx32"x", module.symtab) << "\n"; |
5561 | memset(&symtab, '\0', sizeof(struct objc_symtab_t)); |
5562 | defs_left = 0; |
5563 | defs = nullptr; |
5564 | if (left < sizeof(struct objc_symtab_t)) { |
5565 | memcpy(&symtab, r, left); |
5566 | outs() << "\tsymtab extends past end of an __OBJC section)\n"; |
5567 | } else { |
5568 | memcpy(&symtab, r, sizeof(struct objc_symtab_t)); |
5569 | if (left > sizeof(struct objc_symtab_t)) { |
5570 | defs_left = left - sizeof(struct objc_symtab_t); |
5571 | defs = r + sizeof(struct objc_symtab_t); |
5572 | } |
5573 | } |
5574 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5575 | swapStruct(symtab); |
5576 | |
5577 | outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n"; |
5578 | r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true); |
5579 | outs() << "\trefs " << format("0x%08" PRIx32"x", symtab.refs); |
5580 | if (r == nullptr) |
5581 | outs() << " (not in an __OBJC section)"; |
5582 | outs() << "\n"; |
5583 | outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n"; |
5584 | outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n"; |
5585 | if (symtab.cls_def_cnt > 0) |
5586 | outs() << "\tClass Definitions\n"; |
5587 | for (j = 0; j < symtab.cls_def_cnt; j++) { |
5588 | if ((j + 1) * sizeof(uint32_t) > defs_left) { |
5589 | outs() << "\t(remaining class defs entries entends past the end of the " |
5590 | << "section)\n"; |
5591 | break; |
5592 | } |
5593 | memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t)); |
5594 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5595 | sys::swapByteOrder(def); |
5596 | |
5597 | r = get_pointer_32(def, xoffset, left, xS, &info, true); |
5598 | outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32"x", def); |
5599 | if (r != nullptr) { |
5600 | if (left > sizeof(struct objc_class_t)) { |
5601 | outs() << "\n"; |
5602 | memcpy(&objc_class, r, sizeof(struct objc_class_t)); |
5603 | } else { |
5604 | outs() << " (entends past the end of the section)\n"; |
5605 | memset(&objc_class, '\0', sizeof(struct objc_class_t)); |
5606 | memcpy(&objc_class, r, left); |
5607 | } |
5608 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5609 | swapStruct(objc_class); |
5610 | print_objc_class_t(&objc_class, &info); |
5611 | } else { |
5612 | outs() << "(not in an __OBJC section)\n"; |
5613 | } |
5614 | |
5615 | if (CLS_GETINFO(&objc_class, CLS_CLASS)((&objc_class)->info & (0x1))) { |
5616 | outs() << "\tMeta Class"; |
5617 | r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true); |
5618 | if (r != nullptr) { |
5619 | if (left > sizeof(struct objc_class_t)) { |
5620 | outs() << "\n"; |
5621 | memcpy(&objc_class, r, sizeof(struct objc_class_t)); |
5622 | } else { |
5623 | outs() << " (entends past the end of the section)\n"; |
5624 | memset(&objc_class, '\0', sizeof(struct objc_class_t)); |
5625 | memcpy(&objc_class, r, left); |
5626 | } |
5627 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5628 | swapStruct(objc_class); |
5629 | print_objc_class_t(&objc_class, &info); |
5630 | } else { |
5631 | outs() << "(not in an __OBJC section)\n"; |
5632 | } |
5633 | } |
5634 | } |
5635 | if (symtab.cat_def_cnt > 0) |
5636 | outs() << "\tCategory Definitions\n"; |
5637 | for (j = 0; j < symtab.cat_def_cnt; j++) { |
5638 | if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) { |
5639 | outs() << "\t(remaining category defs entries entends past the end of " |
5640 | << "the section)\n"; |
5641 | break; |
5642 | } |
5643 | memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t), |
5644 | sizeof(uint32_t)); |
5645 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5646 | sys::swapByteOrder(def); |
5647 | |
5648 | r = get_pointer_32(def, xoffset, left, xS, &info, true); |
5649 | outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] " |
5650 | << format("0x%08" PRIx32"x", def); |
5651 | if (r != nullptr) { |
5652 | if (left > sizeof(struct objc_category_t)) { |
5653 | outs() << "\n"; |
5654 | memcpy(&objc_category, r, sizeof(struct objc_category_t)); |
5655 | } else { |
5656 | outs() << " (entends past the end of the section)\n"; |
5657 | memset(&objc_category, '\0', sizeof(struct objc_category_t)); |
5658 | memcpy(&objc_category, r, left); |
5659 | } |
5660 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5661 | swapStruct(objc_category); |
5662 | print_objc_objc_category_t(&objc_category, &info); |
5663 | } else { |
5664 | outs() << "(not in an __OBJC section)\n"; |
5665 | } |
5666 | } |
5667 | } |
5668 | const SectionRef II = get_section(O, "__OBJC", "__image_info"); |
5669 | if (II != SectionRef()) |
5670 | print_image_info(II, &info); |
5671 | |
5672 | return true; |
5673 | } |
5674 | |
5675 | static void DumpProtocolSection(MachOObjectFile *O, const char *sect, |
5676 | uint32_t size, uint32_t addr) { |
5677 | SymbolAddressMap AddrMap; |
5678 | CreateSymbolAddressMap(O, &AddrMap); |
5679 | |
5680 | std::vector<SectionRef> Sections; |
5681 | for (const SectionRef &Section : O->sections()) { |
5682 | StringRef SectName; |
5683 | Section.getName(SectName); |
5684 | Sections.push_back(Section); |
5685 | } |
5686 | |
5687 | struct DisassembleInfo info; |
5688 | // Set up the block of info used by the Symbolizer call backs. |
5689 | info.verbose = true; |
5690 | info.O = O; |
5691 | info.AddrMap = &AddrMap; |
5692 | info.Sections = &Sections; |
5693 | info.class_name = nullptr; |
5694 | info.selector_name = nullptr; |
5695 | info.method = nullptr; |
5696 | info.demangled_name = nullptr; |
5697 | info.bindtable = nullptr; |
5698 | info.adrp_addr = 0; |
5699 | info.adrp_inst = 0; |
5700 | |
5701 | const char *p; |
5702 | struct objc_protocol_t protocol; |
5703 | uint32_t left, paddr; |
5704 | for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) { |
5705 | memset(&protocol, '\0', sizeof(struct objc_protocol_t)); |
5706 | left = size - (p - sect); |
5707 | if (left < sizeof(struct objc_protocol_t)) { |
5708 | outs() << "Protocol extends past end of __protocol section\n"; |
5709 | memcpy(&protocol, p, left); |
5710 | } else |
5711 | memcpy(&protocol, p, sizeof(struct objc_protocol_t)); |
5712 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5713 | swapStruct(protocol); |
5714 | paddr = addr + (p - sect); |
5715 | outs() << "Protocol " << format("0x%" PRIx32"x", paddr); |
5716 | if (print_protocol(paddr, 0, &info)) |
5717 | outs() << "(not in an __OBJC section)\n"; |
5718 | } |
5719 | } |
5720 | |
5721 | #ifdef HAVE_LIBXAR |
5722 | inline void swapStruct(struct xar_header &xar) { |
5723 | sys::swapByteOrder(xar.magic); |
5724 | sys::swapByteOrder(xar.size); |
5725 | sys::swapByteOrder(xar.version); |
5726 | sys::swapByteOrder(xar.toc_length_compressed); |
5727 | sys::swapByteOrder(xar.toc_length_uncompressed); |
5728 | sys::swapByteOrder(xar.cksum_alg); |
5729 | } |
5730 | |
5731 | static void PrintModeVerbose(uint32_t mode) { |
5732 | switch(mode & S_IFMT){ |
5733 | case S_IFDIR: |
5734 | outs() << "d"; |
5735 | break; |
5736 | case S_IFCHR: |
5737 | outs() << "c"; |
5738 | break; |
5739 | case S_IFBLK: |
5740 | outs() << "b"; |
5741 | break; |
5742 | case S_IFREG: |
5743 | outs() << "-"; |
5744 | break; |
5745 | case S_IFLNK: |
5746 | outs() << "l"; |
5747 | break; |
5748 | case S_IFSOCK: |
5749 | outs() << "s"; |
5750 | break; |
5751 | default: |
5752 | outs() << "?"; |
5753 | break; |
5754 | } |
5755 | |
5756 | /* owner permissions */ |
5757 | if(mode & S_IREAD) |
5758 | outs() << "r"; |
5759 | else |
5760 | outs() << "-"; |
5761 | if(mode & S_IWRITE) |
5762 | outs() << "w"; |
5763 | else |
5764 | outs() << "-"; |
5765 | if(mode & S_ISUID) |
5766 | outs() << "s"; |
5767 | else if(mode & S_IEXEC) |
5768 | outs() << "x"; |
5769 | else |
5770 | outs() << "-"; |
5771 | |
5772 | /* group permissions */ |
5773 | if(mode & (S_IREAD >> 3)) |
5774 | outs() << "r"; |
5775 | else |
5776 | outs() << "-"; |
5777 | if(mode & (S_IWRITE >> 3)) |
5778 | outs() << "w"; |
5779 | else |
5780 | outs() << "-"; |
5781 | if(mode & S_ISGID) |
5782 | outs() << "s"; |
5783 | else if(mode & (S_IEXEC >> 3)) |
5784 | outs() << "x"; |
5785 | else |
5786 | outs() << "-"; |
5787 | |
5788 | /* other permissions */ |
5789 | if(mode & (S_IREAD >> 6)) |
5790 | outs() << "r"; |
5791 | else |
5792 | outs() << "-"; |
5793 | if(mode & (S_IWRITE >> 6)) |
5794 | outs() << "w"; |
5795 | else |
5796 | outs() << "-"; |
5797 | if(mode & S_ISVTX) |
5798 | outs() << "t"; |
5799 | else if(mode & (S_IEXEC >> 6)) |
5800 | outs() << "x"; |
5801 | else |
5802 | outs() << "-"; |
5803 | } |
5804 | |
5805 | static void PrintXarFilesSummary(const char *XarFilename, xar_t xar) { |
5806 | xar_iter_t xi; |
5807 | xar_file_t xf; |
5808 | xar_iter_t xp; |
5809 | const char *key, *type, *mode, *user, *group, *size, *mtime, *name, *m; |
5810 | char *endp; |
5811 | uint32_t mode_value; |
5812 | |
5813 | xi = xar_iter_new(); |
5814 | if (!xi) { |
5815 | errs() << "Can't obtain an xar iterator for xar archive " |
5816 | << XarFilename << "\n"; |
5817 | return; |
5818 | } |
5819 | |
5820 | // Go through the xar's files. |
5821 | for (xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)) { |
5822 | xp = xar_iter_new(); |
5823 | if(!xp){ |
5824 | errs() << "Can't obtain an xar iterator for xar archive " |
5825 | << XarFilename << "\n"; |
5826 | return; |
5827 | } |
5828 | type = nullptr; |
5829 | mode = nullptr; |
5830 | user = nullptr; |
5831 | group = nullptr; |
5832 | size = nullptr; |
5833 | mtime = nullptr; |
5834 | name = nullptr; |
5835 | for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ |
5836 | const char *val = nullptr; |
5837 | xar_prop_get(xf, key, &val); |
5838 | #if 0 // Useful for debugging. |
5839 | outs() << "key: " << key << " value: " << val << "\n"; |
5840 | #endif |
5841 | if(strcmp(key, "type") == 0) |
5842 | type = val; |
5843 | if(strcmp(key, "mode") == 0) |
5844 | mode = val; |
5845 | if(strcmp(key, "user") == 0) |
5846 | user = val; |
5847 | if(strcmp(key, "group") == 0) |
5848 | group = val; |
5849 | if(strcmp(key, "data/size") == 0) |
5850 | size = val; |
5851 | if(strcmp(key, "mtime") == 0) |
5852 | mtime = val; |
5853 | if(strcmp(key, "name") == 0) |
5854 | name = val; |
5855 | } |
5856 | if(mode != nullptr){ |
5857 | mode_value = strtoul(mode, &endp, 8); |
5858 | if(*endp != '\0') |
5859 | outs() << "(mode: \"" << mode << "\" contains non-octal chars) "; |
5860 | if(strcmp(type, "file") == 0) |
5861 | mode_value |= S_IFREG; |
5862 | PrintModeVerbose(mode_value); |
5863 | outs() << " "; |
5864 | } |
5865 | if(user != nullptr) |
5866 | outs() << format("%10s/", user); |
5867 | if(group != nullptr) |
5868 | outs() << format("%-10s ", group); |
5869 | if(size != nullptr) |
5870 | outs() << format("%7s ", size); |
5871 | if(mtime != nullptr){ |
5872 | for(m = mtime; *m != 'T' && *m != '\0'; m++) |
5873 | outs() << *m; |
5874 | if(*m == 'T') |
5875 | m++; |
5876 | outs() << " "; |
5877 | for( ; *m != 'Z' && *m != '\0'; m++) |
5878 | outs() << *m; |
5879 | outs() << " "; |
5880 | } |
5881 | if(name != nullptr) |
5882 | outs() << name; |
5883 | outs() << "\n"; |
5884 | } |
5885 | } |
5886 | |
5887 | static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, |
5888 | uint32_t size, bool verbose, |
5889 | bool PrintXarHeader, bool PrintXarFileHeaders, |
5890 | std::string XarMemberName) { |
5891 | if(size < sizeof(struct xar_header)) { |
5892 | outs() << "size of (__LLVM,__bundle) section too small (smaller than size " |
5893 | "of struct xar_header)\n"; |
5894 | return; |
5895 | } |
5896 | struct xar_header XarHeader; |
5897 | memcpy(&XarHeader, sect, sizeof(struct xar_header)); |
5898 | if (sys::IsLittleEndianHost) |
5899 | swapStruct(XarHeader); |
5900 | if (PrintXarHeader) { |
5901 | if (!XarMemberName.empty()) |
5902 | outs() << "In xar member " << XarMemberName << ": "; |
5903 | else |
5904 | outs() << "For (__LLVM,__bundle) section: "; |
5905 | outs() << "xar header\n"; |
5906 | if (XarHeader.magic == XAR_HEADER_MAGIC) |
5907 | outs() << " magic XAR_HEADER_MAGIC\n"; |
5908 | else |
5909 | outs() << " magic " |
5910 | << format_hex(XarHeader.magic, 10, true) |
5911 | << " (not XAR_HEADER_MAGIC)\n"; |
5912 | outs() << " size " << XarHeader.size << "\n"; |
5913 | outs() << " version " << XarHeader.version << "\n"; |
5914 | outs() << " toc_length_compressed " << XarHeader.toc_length_compressed |
5915 | << "\n"; |
5916 | outs() << "toc_length_uncompressed " << XarHeader.toc_length_uncompressed |
5917 | << "\n"; |
5918 | outs() << " cksum_alg "; |
5919 | switch (XarHeader.cksum_alg) { |
5920 | case XAR_CKSUM_NONE: |
5921 | outs() << "XAR_CKSUM_NONE\n"; |
5922 | break; |
5923 | case XAR_CKSUM_SHA1: |
5924 | outs() << "XAR_CKSUM_SHA1\n"; |
5925 | break; |
5926 | case XAR_CKSUM_MD5: |
5927 | outs() << "XAR_CKSUM_MD5\n"; |
5928 | break; |
5929 | #ifdef XAR_CKSUM_SHA256 |
5930 | case XAR_CKSUM_SHA256: |
5931 | outs() << "XAR_CKSUM_SHA256\n"; |
5932 | break; |
5933 | #endif |
5934 | #ifdef XAR_CKSUM_SHA512 |
5935 | case XAR_CKSUM_SHA512: |
5936 | outs() << "XAR_CKSUM_SHA512\n"; |
5937 | break; |
5938 | #endif |
5939 | default: |
5940 | outs() << XarHeader.cksum_alg << "\n"; |
5941 | } |
5942 | } |
5943 | |
5944 | SmallString<128> XarFilename; |
5945 | int FD; |
5946 | std::error_code XarEC = |
5947 | sys::fs::createTemporaryFile("llvm-objdump", "xar", FD, XarFilename); |
5948 | if (XarEC) { |
5949 | errs() << XarEC.message() << "\n"; |
5950 | return; |
5951 | } |
5952 | tool_output_file XarFile(XarFilename, FD); |
5953 | raw_fd_ostream &XarOut = XarFile.os(); |
5954 | StringRef XarContents(sect, size); |
5955 | XarOut << XarContents; |
5956 | XarOut.close(); |
5957 | if (XarOut.has_error()) |
5958 | return; |
5959 | |
5960 | xar_t xar = xar_open(XarFilename.c_str(), READ); |
5961 | if (!xar) { |
5962 | errs() << "Can't create temporary xar archive " << XarFilename << "\n"; |
5963 | return; |
5964 | } |
5965 | |
5966 | SmallString<128> TocFilename; |
5967 | std::error_code TocEC = |
5968 | sys::fs::createTemporaryFile("llvm-objdump", "toc", TocFilename); |
5969 | if (TocEC) { |
5970 | errs() << TocEC.message() << "\n"; |
5971 | return; |
5972 | } |
5973 | xar_serialize(xar, TocFilename.c_str()); |
5974 | |
5975 | if (PrintXarFileHeaders) { |
5976 | if (!XarMemberName.empty()) |
5977 | outs() << "In xar member " << XarMemberName << ": "; |
5978 | else |
5979 | outs() << "For (__LLVM,__bundle) section: "; |
5980 | outs() << "xar archive files:\n"; |
5981 | PrintXarFilesSummary(XarFilename.c_str(), xar); |
5982 | } |
5983 | |
5984 | ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
5985 | MemoryBuffer::getFileOrSTDIN(TocFilename.c_str()); |
5986 | if (std::error_code EC = FileOrErr.getError()) { |
5987 | errs() << EC.message() << "\n"; |
5988 | return; |
5989 | } |
5990 | std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get(); |
5991 | |
5992 | if (!XarMemberName.empty()) |
5993 | outs() << "In xar member " << XarMemberName << ": "; |
5994 | else |
5995 | outs() << "For (__LLVM,__bundle) section: "; |
5996 | outs() << "xar table of contents:\n"; |
5997 | outs() << Buffer->getBuffer() << "\n"; |
5998 | |
5999 | // TODO: Go through the xar's files. |
6000 | xar_iter_t xi = xar_iter_new(); |
6001 | if(!xi){ |
6002 | errs() << "Can't obtain an xar iterator for xar archive " |
6003 | << XarFilename.c_str() << "\n"; |
6004 | xar_close(xar); |
6005 | return; |
6006 | } |
6007 | for(xar_file_t xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)){ |
6008 | const char *key; |
6009 | xar_iter_t xp; |
6010 | const char *member_name, *member_type, *member_size_string; |
6011 | size_t member_size; |
6012 | |
6013 | xp = xar_iter_new(); |
6014 | if(!xp){ |
6015 | errs() << "Can't obtain an xar iterator for xar archive " |
6016 | << XarFilename.c_str() << "\n"; |
6017 | xar_close(xar); |
6018 | return; |
6019 | } |
6020 | member_name = NULL__null; |
6021 | member_type = NULL__null; |
6022 | member_size_string = NULL__null; |
6023 | for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ |
6024 | const char *val = nullptr; |
6025 | xar_prop_get(xf, key, &val); |
6026 | #if 0 // Useful for debugging. |
6027 | outs() << "key: " << key << " value: " << val << "\n"; |
6028 | #endif |
6029 | if(strcmp(key, "name") == 0) |
6030 | member_name = val; |
6031 | if(strcmp(key, "type") == 0) |
6032 | member_type = val; |
6033 | if(strcmp(key, "data/size") == 0) |
6034 | member_size_string = val; |
6035 | } |
6036 | /* |
6037 | * If we find a file with a name, date/size and type properties |
6038 | * and with the type being "file" see if that is a xar file. |
6039 | */ |
6040 | if (member_name != NULL__null && member_type != NULL__null && |
6041 | strcmp(member_type, "file") == 0 && |
6042 | member_size_string != NULL__null){ |
6043 | // Extract the file into a buffer. |
6044 | char *endptr; |
6045 | member_size = strtoul(member_size_string, &endptr, 10); |
6046 | if (*endptr == '\0' && member_size != 0) { |
6047 | char *buffer = (char *) ::operator new (member_size); |
6048 | if (xar_extract_tobuffersz(xar, xf, &buffer, &member_size) == 0) { |
6049 | #if 0 // Useful for debugging. |
6050 | outs() << "xar member: " << member_name << " extracted\n"; |
6051 | #endif |
6052 | // Set the XarMemberName we want to see printed in the header. |
6053 | std::string OldXarMemberName; |
6054 | // If XarMemberName is already set this is nested. So |
6055 | // save the old name and create the nested name. |
6056 | if (!XarMemberName.empty()) { |
6057 | OldXarMemberName = XarMemberName; |
6058 | XarMemberName = |
6059 | (Twine("[") + XarMemberName + "]" + member_name).str(); |
6060 | } else { |
6061 | OldXarMemberName = ""; |
6062 | XarMemberName = member_name; |
6063 | } |
6064 | // See if this is could be a xar file (nested). |
6065 | if (member_size >= sizeof(struct xar_header)) { |
6066 | #if 0 // Useful for debugging. |
6067 | outs() << "could be a xar file: " << member_name << "\n"; |
6068 | #endif |
6069 | memcpy((char *)&XarHeader, buffer, sizeof(struct xar_header)); |
6070 | if (sys::IsLittleEndianHost) |
6071 | swapStruct(XarHeader); |
6072 | if(XarHeader.magic == XAR_HEADER_MAGIC) |
6073 | DumpBitcodeSection(O, buffer, member_size, verbose, |
6074 | PrintXarHeader, PrintXarFileHeaders, |
6075 | XarMemberName); |
6076 | } |
6077 | XarMemberName = OldXarMemberName; |
6078 | } |
6079 | delete buffer; |
6080 | } |
6081 | } |
6082 | xar_iter_free(xp); |
6083 | } |
6084 | xar_close(xar); |
6085 | } |
6086 | #endif // defined(HAVE_LIBXAR) |
6087 | |
6088 | static void printObjcMetaData(MachOObjectFile *O, bool verbose) { |
6089 | if (O->is64Bit()) |
6090 | printObjc2_64bit_MetaData(O, verbose); |
6091 | else { |
6092 | MachO::mach_header H; |
6093 | H = O->getHeader(); |
6094 | if (H.cputype == MachO::CPU_TYPE_ARM) |
6095 | printObjc2_32bit_MetaData(O, verbose); |
6096 | else { |
6097 | // This is the 32-bit non-arm cputype case. Which is normally |
6098 | // the first Objective-C ABI. But it may be the case of a |
6099 | // binary for the iOS simulator which is the second Objective-C |
6100 | // ABI. In that case printObjc1_32bit_MetaData() will determine that |
6101 | // and return false. |
6102 | if (!printObjc1_32bit_MetaData(O, verbose)) |
6103 | printObjc2_32bit_MetaData(O, verbose); |
6104 | } |
6105 | } |
6106 | } |
6107 | |
6108 | // GuessLiteralPointer returns a string which for the item in the Mach-O file |
6109 | // for the address passed in as ReferenceValue for printing as a comment with |
6110 | // the instruction and also returns the corresponding type of that item |
6111 | // indirectly through ReferenceType. |
6112 | // |
6113 | // If ReferenceValue is an address of literal cstring then a pointer to the |
6114 | // cstring is returned and ReferenceType is set to |
6115 | // LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr . |
6116 | // |
6117 | // If ReferenceValue is an address of an Objective-C CFString, Selector ref or |
6118 | // Class ref that name is returned and the ReferenceType is set accordingly. |
6119 | // |
6120 | // Lastly, literals which are Symbol address in a literal pool are looked for |
6121 | // and if found the symbol name is returned and ReferenceType is set to |
6122 | // LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr . |
6123 | // |
6124 | // If there is no item in the Mach-O file for the address passed in as |
6125 | // ReferenceValue nullptr is returned and ReferenceType is unchanged. |
6126 | static const char *GuessLiteralPointer(uint64_t ReferenceValue, |
6127 | uint64_t ReferencePC, |
6128 | uint64_t *ReferenceType, |
6129 | struct DisassembleInfo *info) { |
6130 | // First see if there is an external relocation entry at the ReferencePC. |
6131 | if (info->O->getHeader().filetype == MachO::MH_OBJECT) { |
6132 | uint64_t sect_addr = info->S.getAddress(); |
6133 | uint64_t sect_offset = ReferencePC - sect_addr; |
6134 | bool reloc_found = false; |
6135 | DataRefImpl Rel; |
6136 | MachO::any_relocation_info RE; |
6137 | bool isExtern = false; |
6138 | SymbolRef Symbol; |
6139 | for (const RelocationRef &Reloc : info->S.relocations()) { |
6140 | uint64_t RelocOffset = Reloc.getOffset(); |
6141 | if (RelocOffset == sect_offset) { |
6142 | Rel = Reloc.getRawDataRefImpl(); |
6143 | RE = info->O->getRelocation(Rel); |
6144 | if (info->O->isRelocationScattered(RE)) |
6145 | continue; |
6146 | isExtern = info->O->getPlainRelocationExternal(RE); |
6147 | if (isExtern) { |
6148 | symbol_iterator RelocSym = Reloc.getSymbol(); |
6149 | Symbol = *RelocSym; |
6150 | } |
6151 | reloc_found = true; |
6152 | break; |
6153 | } |
6154 | } |
6155 | // If there is an external relocation entry for a symbol in a section |
6156 | // then used that symbol's value for the value of the reference. |
6157 | if (reloc_found && isExtern) { |
6158 | if (info->O->getAnyRelocationPCRel(RE)) { |
6159 | unsigned Type = info->O->getAnyRelocationType(RE); |
6160 | if (Type == MachO::X86_64_RELOC_SIGNED) { |
6161 | ReferenceValue = Symbol.getValue(); |
6162 | } |
6163 | } |
6164 | } |
6165 | } |
6166 | |
6167 | // Look for literals such as Objective-C CFStrings refs, Selector refs, |
6168 | // Message refs and Class refs. |
6169 | bool classref, selref, msgref, cfstring; |
6170 | uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref, |
6171 | selref, msgref, cfstring); |
6172 | if (classref && pointer_value == 0) { |
6173 | // Note the ReferenceValue is a pointer into the __objc_classrefs section. |
6174 | // And the pointer_value in that section is typically zero as it will be |
6175 | // set by dyld as part of the "bind information". |
6176 | const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info); |
6177 | if (name != nullptr) { |
6178 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref8; |
6179 | const char *class_name = strrchr(name, '$'); |
6180 | if (class_name != nullptr && class_name[1] == '_' && |
6181 | class_name[2] != '\0') { |
6182 | info->class_name = class_name + 2; |
6183 | return name; |
6184 | } |
6185 | } |
6186 | } |
6187 | |
6188 | if (classref) { |
6189 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref8; |
6190 | const char *name = |
6191 | get_objc2_64bit_class_name(pointer_value, ReferenceValue, info); |
6192 | if (name != nullptr) |
6193 | info->class_name = name; |
6194 | else |
6195 | name = "bad class ref"; |
6196 | return name; |
6197 | } |
6198 | |
6199 | if (cfstring) { |
6200 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref4; |
6201 | const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info); |
6202 | return name; |
6203 | } |
6204 | |
6205 | if (selref && pointer_value == 0) |
6206 | pointer_value = get_objc2_64bit_selref(ReferenceValue, info); |
6207 | |
6208 | if (pointer_value != 0) |
6209 | ReferenceValue = pointer_value; |
6210 | |
6211 | const char *name = GuessCstringPointer(ReferenceValue, info); |
6212 | if (name) { |
6213 | if (pointer_value != 0 && selref) { |
6214 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref7; |
6215 | info->selector_name = name; |
6216 | } else if (pointer_value != 0 && msgref) { |
6217 | info->class_name = nullptr; |
6218 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref6; |
6219 | info->selector_name = name; |
6220 | } else |
6221 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr3; |
6222 | return name; |
6223 | } |
6224 | |
6225 | // Lastly look for an indirect symbol with this ReferenceValue which is in |
6226 | // a literal pool. If found return that symbol name. |
6227 | name = GuessIndirectSymbol(ReferenceValue, info); |
6228 | if (name) { |
6229 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr2; |
6230 | return name; |
6231 | } |
6232 | |
6233 | return nullptr; |
6234 | } |
6235 | |
6236 | // SymbolizerSymbolLookUp is the symbol lookup function passed when creating |
6237 | // the Symbolizer. It looks up the ReferenceValue using the info passed via the |
6238 | // pointer to the struct DisassembleInfo that was passed when MCSymbolizer |
6239 | // is created and returns the symbol name that matches the ReferenceValue or |
6240 | // nullptr if none. The ReferenceType is passed in for the IN type of |
6241 | // reference the instruction is making from the values in defined in the header |
6242 | // "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific |
6243 | // Out type and the ReferenceName will also be set which is added as a comment |
6244 | // to the disassembled instruction. |
6245 | // |
6246 | // If the symbol name is a C++ mangled name then the demangled name is |
6247 | // returned through ReferenceName and ReferenceType is set to |
6248 | // LLVMDisassembler_ReferenceType_DeMangled_Name . |
6249 | // |
6250 | // When this is called to get a symbol name for a branch target then the |
6251 | // ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then |
6252 | // SymbolValue will be looked for in the indirect symbol table to determine if |
6253 | // it is an address for a symbol stub. If so then the symbol name for that |
6254 | // stub is returned indirectly through ReferenceName and then ReferenceType is |
6255 | // set to LLVMDisassembler_ReferenceType_Out_SymbolStub. |
6256 | // |
6257 | // When this is called with an value loaded via a PC relative load then |
6258 | // ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the |
6259 | // SymbolValue is checked to be an address of literal pointer, symbol pointer, |
6260 | // or an Objective-C meta data reference. If so the output ReferenceType is |
6261 | // set to correspond to that as well as setting the ReferenceName. |
6262 | static const char *SymbolizerSymbolLookUp(void *DisInfo, |
6263 | uint64_t ReferenceValue, |
6264 | uint64_t *ReferenceType, |
6265 | uint64_t ReferencePC, |
6266 | const char **ReferenceName) { |
6267 | struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; |
6268 | // If no verbose symbolic information is wanted then just return nullptr. |
6269 | if (!info->verbose) { |
6270 | *ReferenceName = nullptr; |
6271 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6272 | return nullptr; |
6273 | } |
6274 | |
6275 | const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); |
6276 | |
6277 | if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch1) { |
6278 | *ReferenceName = GuessIndirectSymbol(ReferenceValue, info); |
6279 | if (*ReferenceName != nullptr) { |
6280 | method_reference(info, ReferenceType, ReferenceName); |
6281 | if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message5) |
6282 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub1; |
6283 | } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { |
6284 | if (info->demangled_name != nullptr) |
6285 | free(info->demangled_name); |
6286 | int status; |
6287 | info->demangled_name = |
6288 | itaniumDemangle(SymbolName + 1, nullptr, nullptr, &status); |
6289 | if (info->demangled_name != nullptr) { |
6290 | *ReferenceName = info->demangled_name; |
6291 | *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name9; |
6292 | } else |
6293 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6294 | } else |
6295 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6296 | } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load2) { |
6297 | *ReferenceName = |
6298 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6299 | if (*ReferenceName) |
6300 | method_reference(info, ReferenceType, ReferenceName); |
6301 | else |
6302 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6303 | // If this is arm64 and the reference is an adrp instruction save the |
6304 | // instruction, passed in ReferenceValue and the address of the instruction |
6305 | // for use later if we see and add immediate instruction. |
6306 | } else if (info->O->getArch() == Triple::aarch64 && |
6307 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP0x100000001) { |
6308 | info->adrp_inst = ReferenceValue; |
6309 | info->adrp_addr = ReferencePC; |
6310 | SymbolName = nullptr; |
6311 | *ReferenceName = nullptr; |
6312 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6313 | // If this is arm64 and reference is an add immediate instruction and we |
6314 | // have |
6315 | // seen an adrp instruction just before it and the adrp's Xd register |
6316 | // matches |
6317 | // this add's Xn register reconstruct the value being referenced and look to |
6318 | // see if it is a literal pointer. Note the add immediate instruction is |
6319 | // passed in ReferenceValue. |
6320 | } else if (info->O->getArch() == Triple::aarch64 && |
6321 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri0x100000002 && |
6322 | ReferencePC - 4 == info->adrp_addr && |
6323 | (info->adrp_inst & 0x9f000000) == 0x90000000 && |
6324 | (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { |
6325 | uint32_t addxri_inst; |
6326 | uint64_t adrp_imm, addxri_imm; |
6327 | |
6328 | adrp_imm = |
6329 | ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); |
6330 | if (info->adrp_inst & 0x0200000) |
6331 | adrp_imm |= 0xfffffffffc000000LL; |
6332 | |
6333 | addxri_inst = ReferenceValue; |
6334 | addxri_imm = (addxri_inst >> 10) & 0xfff; |
6335 | if (((addxri_inst >> 22) & 0x3) == 1) |
6336 | addxri_imm <<= 12; |
6337 | |
6338 | ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + |
6339 | (adrp_imm << 12) + addxri_imm; |
6340 | |
6341 | *ReferenceName = |
6342 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6343 | if (*ReferenceName == nullptr) |
6344 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6345 | // If this is arm64 and the reference is a load register instruction and we |
6346 | // have seen an adrp instruction just before it and the adrp's Xd register |
6347 | // matches this add's Xn register reconstruct the value being referenced and |
6348 | // look to see if it is a literal pointer. Note the load register |
6349 | // instruction is passed in ReferenceValue. |
6350 | } else if (info->O->getArch() == Triple::aarch64 && |
6351 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui0x100000003 && |
6352 | ReferencePC - 4 == info->adrp_addr && |
6353 | (info->adrp_inst & 0x9f000000) == 0x90000000 && |
6354 | (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { |
6355 | uint32_t ldrxui_inst; |
6356 | uint64_t adrp_imm, ldrxui_imm; |
6357 | |
6358 | adrp_imm = |
6359 | ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); |
6360 | if (info->adrp_inst & 0x0200000) |
6361 | adrp_imm |= 0xfffffffffc000000LL; |
6362 | |
6363 | ldrxui_inst = ReferenceValue; |
6364 | ldrxui_imm = (ldrxui_inst >> 10) & 0xfff; |
6365 | |
6366 | ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + |
6367 | (adrp_imm << 12) + (ldrxui_imm << 3); |
6368 | |
6369 | *ReferenceName = |
6370 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6371 | if (*ReferenceName == nullptr) |
6372 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6373 | } |
6374 | // If this arm64 and is an load register (PC-relative) instruction the |
6375 | // ReferenceValue is the PC plus the immediate value. |
6376 | else if (info->O->getArch() == Triple::aarch64 && |
6377 | (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl0x100000004 || |
6378 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR0x100000005)) { |
6379 | *ReferenceName = |
6380 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6381 | if (*ReferenceName == nullptr) |
6382 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6383 | } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { |
6384 | if (info->demangled_name != nullptr) |
6385 | free(info->demangled_name); |
6386 | int status; |
6387 | info->demangled_name = |
6388 | itaniumDemangle(SymbolName + 1, nullptr, nullptr, &status); |
6389 | if (info->demangled_name != nullptr) { |
6390 | *ReferenceName = info->demangled_name; |
6391 | *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name9; |
6392 | } |
6393 | } |
6394 | else { |
6395 | *ReferenceName = nullptr; |
6396 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6397 | } |
6398 | |
6399 | return SymbolName; |
6400 | } |
6401 | |
6402 | /// \brief Emits the comments that are stored in the CommentStream. |
6403 | /// Each comment in the CommentStream must end with a newline. |
6404 | static void emitComments(raw_svector_ostream &CommentStream, |
6405 | SmallString<128> &CommentsToEmit, |
6406 | formatted_raw_ostream &FormattedOS, |
6407 | const MCAsmInfo &MAI) { |
6408 | // Flush the stream before taking its content. |
6409 | StringRef Comments = CommentsToEmit.str(); |
6410 | // Get the default information for printing a comment. |
6411 | StringRef CommentBegin = MAI.getCommentString(); |
6412 | unsigned CommentColumn = MAI.getCommentColumn(); |
6413 | bool IsFirst = true; |
6414 | while (!Comments.empty()) { |
6415 | if (!IsFirst) |
6416 | FormattedOS << '\n'; |
6417 | // Emit a line of comments. |
6418 | FormattedOS.PadToColumn(CommentColumn); |
6419 | size_t Position = Comments.find('\n'); |
6420 | FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position); |
6421 | // Move after the newline character. |
6422 | Comments = Comments.substr(Position + 1); |
6423 | IsFirst = false; |
6424 | } |
6425 | FormattedOS.flush(); |
6426 | |
6427 | // Tell the comment stream that the vector changed underneath it. |
6428 | CommentsToEmit.clear(); |
6429 | } |
6430 | |
6431 | static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, |
6432 | StringRef DisSegName, StringRef DisSectName) { |
6433 | const char *McpuDefault = nullptr; |
6434 | const Target *ThumbTarget = nullptr; |
6435 | const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget); |
6436 | if (!TheTarget) { |
6437 | // GetTarget prints out stuff. |
6438 | return; |
6439 | } |
6440 | if (MCPU.empty() && McpuDefault) |
6441 | MCPU = McpuDefault; |
6442 | |
6443 | std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); |
6444 | std::unique_ptr<const MCInstrInfo> ThumbInstrInfo; |
6445 | if (ThumbTarget) |
6446 | ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo()); |
6447 | |
6448 | // Package up features to be passed to target/subtarget |
6449 | std::string FeaturesStr; |
6450 | if (MAttrs.size()) { |
6451 | SubtargetFeatures Features; |
6452 | for (unsigned i = 0; i != MAttrs.size(); ++i) |
6453 | Features.AddFeature(MAttrs[i]); |
6454 | FeaturesStr = Features.getString(); |
6455 | } |
6456 | |
6457 | // Set up disassembler. |
6458 | std::unique_ptr<const MCRegisterInfo> MRI( |
6459 | TheTarget->createMCRegInfo(TripleName)); |
6460 | std::unique_ptr<const MCAsmInfo> AsmInfo( |
6461 | TheTarget->createMCAsmInfo(*MRI, TripleName)); |
6462 | std::unique_ptr<const MCSubtargetInfo> STI( |
6463 | TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr)); |
6464 | MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr); |
6465 | std::unique_ptr<MCDisassembler> DisAsm( |
6466 | TheTarget->createMCDisassembler(*STI, Ctx)); |
6467 | std::unique_ptr<MCSymbolizer> Symbolizer; |
6468 | struct DisassembleInfo SymbolizerInfo; |
6469 | std::unique_ptr<MCRelocationInfo> RelInfo( |
6470 | TheTarget->createMCRelocationInfo(TripleName, Ctx)); |
6471 | if (RelInfo) { |
6472 | Symbolizer.reset(TheTarget->createMCSymbolizer( |
6473 | TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, |
6474 | &SymbolizerInfo, &Ctx, std::move(RelInfo))); |
6475 | DisAsm->setSymbolizer(std::move(Symbolizer)); |
6476 | } |
6477 | int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); |
6478 | std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( |
6479 | Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI)); |
6480 | // Set the display preference for hex vs. decimal immediates. |
6481 | IP->setPrintImmHex(PrintImmHex); |
6482 | // Comment stream and backing vector. |
6483 | SmallString<128> CommentsToEmit; |
6484 | raw_svector_ostream CommentStream(CommentsToEmit); |
6485 | // FIXME: Setting the CommentStream in the InstPrinter is problematic in that |
6486 | // if it is done then arm64 comments for string literals don't get printed |
6487 | // and some constant get printed instead and not setting it causes intel |
6488 | // (32-bit and 64-bit) comments printed with different spacing before the |
6489 | // comment causing different diffs with the 'C' disassembler library API. |
6490 | // IP->setCommentStream(CommentStream); |
6491 | |
6492 | if (!AsmInfo || !STI || !DisAsm || !IP) { |
6493 | errs() << "error: couldn't initialize disassembler for target " |
6494 | << TripleName << '\n'; |
6495 | return; |
6496 | } |
6497 | |
6498 | // Set up separate thumb disassembler if needed. |
6499 | std::unique_ptr<const MCRegisterInfo> ThumbMRI; |
6500 | std::unique_ptr<const MCAsmInfo> ThumbAsmInfo; |
6501 | std::unique_ptr<const MCSubtargetInfo> ThumbSTI; |
6502 | std::unique_ptr<MCDisassembler> ThumbDisAsm; |
6503 | std::unique_ptr<MCInstPrinter> ThumbIP; |
6504 | std::unique_ptr<MCContext> ThumbCtx; |
6505 | std::unique_ptr<MCSymbolizer> ThumbSymbolizer; |
6506 | struct DisassembleInfo ThumbSymbolizerInfo; |
6507 | std::unique_ptr<MCRelocationInfo> ThumbRelInfo; |
6508 | if (ThumbTarget) { |
6509 | ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName)); |
6510 | ThumbAsmInfo.reset( |
6511 | ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName)); |
6512 | ThumbSTI.reset( |
6513 | ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MCPU, FeaturesStr)); |
6514 | ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr)); |
6515 | ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx)); |
6516 | MCContext *PtrThumbCtx = ThumbCtx.get(); |
6517 | ThumbRelInfo.reset( |
6518 | ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx)); |
6519 | if (ThumbRelInfo) { |
6520 | ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer( |
6521 | ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, |
6522 | &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo))); |
6523 | ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer)); |
6524 | } |
6525 | int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect(); |
6526 | ThumbIP.reset(ThumbTarget->createMCInstPrinter( |
6527 | Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo, |
6528 | *ThumbInstrInfo, *ThumbMRI)); |
6529 | // Set the display preference for hex vs. decimal immediates. |
6530 | ThumbIP->setPrintImmHex(PrintImmHex); |
6531 | } |
6532 | |
6533 | if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) { |
6534 | errs() << "error: couldn't initialize disassembler for target " |
6535 | << ThumbTripleName << '\n'; |
6536 | return; |
6537 | } |
6538 | |
6539 | MachO::mach_header Header = MachOOF->getHeader(); |
6540 | |
6541 | // FIXME: Using the -cfg command line option, this code used to be able to |
6542 | // annotate relocations with the referenced symbol's name, and if this was |
6543 | // inside a __[cf]string section, the data it points to. This is now replaced |
6544 | // by the upcoming MCSymbolizer, which needs the appropriate setup done above. |
6545 | std::vector<SectionRef> Sections; |
6546 | std::vector<SymbolRef> Symbols; |
6547 | SmallVector<uint64_t, 8> FoundFns; |
6548 | uint64_t BaseSegmentAddress; |
6549 | |
6550 | getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns, |
6551 | BaseSegmentAddress); |
6552 | |
6553 | // Sort the symbols by address, just in case they didn't come in that way. |
6554 | std::sort(Symbols.begin(), Symbols.end(), SymbolSorter()); |
6555 | |
6556 | // Build a data in code table that is sorted on by the address of each entry. |
6557 | uint64_t BaseAddress = 0; |
6558 | if (Header.filetype == MachO::MH_OBJECT) |
6559 | BaseAddress = Sections[0].getAddress(); |
6560 | else |
6561 | BaseAddress = BaseSegmentAddress; |
6562 | DiceTable Dices; |
6563 | for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices(); |
6564 | DI != DE; ++DI) { |
6565 | uint32_t Offset; |
6566 | DI->getOffset(Offset); |
6567 | Dices.push_back(std::make_pair(BaseAddress + Offset, *DI)); |
6568 | } |
6569 | array_pod_sort(Dices.begin(), Dices.end()); |
6570 | |
6571 | #ifndef NDEBUG |
6572 | raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); |
6573 | #else |
6574 | raw_ostream &DebugOut = nulls(); |
6575 | #endif |
6576 | |
6577 | std::unique_ptr<DIContext> diContext; |
6578 | ObjectFile *DbgObj = MachOOF; |
6579 | // Try to find debug info and set up the DIContext for it. |
6580 | if (UseDbg) { |
6581 | // A separate DSym file path was specified, parse it as a macho file, |
6582 | // get the sections and supply it to the section name parsing machinery. |
6583 | if (!DSYMFile.empty()) { |
6584 | ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr = |
6585 | MemoryBuffer::getFileOrSTDIN(DSYMFile); |
6586 | if (std::error_code EC = BufOrErr.getError()) { |
6587 | errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n'; |
6588 | return; |
6589 | } |
6590 | DbgObj = |
6591 | ObjectFile::createMachOObjectFile(BufOrErr.get()->getMemBufferRef()) |
6592 | .get() |
6593 | .release(); |
6594 | } |
6595 | |
6596 | // Setup the DIContext |
6597 | diContext.reset(new DWARFContextInMemory(*DbgObj)); |
6598 | } |
6599 | |
6600 | if (FilterSections.size() == 0) |
6601 | outs() << "(" << DisSegName << "," << DisSectName << ") section\n"; |
6602 | |
6603 | for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { |
6604 | StringRef SectName; |
6605 | if (Sections[SectIdx].getName(SectName) || SectName != DisSectName) |
6606 | continue; |
6607 | |
6608 | DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl(); |
6609 | |
6610 | StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR); |
6611 | if (SegmentName != DisSegName) |
6612 | continue; |
6613 | |
6614 | StringRef BytesStr; |
6615 | Sections[SectIdx].getContents(BytesStr); |
6616 | ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()), |
6617 | BytesStr.size()); |
6618 | uint64_t SectAddress = Sections[SectIdx].getAddress(); |
6619 | |
6620 | bool symbolTableWorked = false; |
6621 | |
6622 | // Create a map of symbol addresses to symbol names for use by |
6623 | // the SymbolizerSymbolLookUp() routine. |
6624 | SymbolAddressMap AddrMap; |
6625 | bool DisSymNameFound = false; |
6626 | for (const SymbolRef &Symbol : MachOOF->symbols()) { |
6627 | Expected<SymbolRef::Type> STOrErr = Symbol.getType(); |
6628 | if (!STOrErr) |
6629 | report_error(MachOOF->getFileName(), STOrErr.takeError()); |
6630 | SymbolRef::Type ST = *STOrErr; |
6631 | if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || |
6632 | ST == SymbolRef::ST_Other) { |
6633 | uint64_t Address = Symbol.getValue(); |
6634 | Expected<StringRef> SymNameOrErr = Symbol.getName(); |
6635 | if (!SymNameOrErr) |
6636 | report_error(MachOOF->getFileName(), SymNameOrErr.takeError()); |
6637 | StringRef SymName = *SymNameOrErr; |
6638 | AddrMap[Address] = SymName; |
6639 | if (!DisSymName.empty() && DisSymName == SymName) |
6640 | DisSymNameFound = true; |
6641 | } |
6642 | } |
6643 | if (!DisSymName.empty() && !DisSymNameFound) { |
6644 | outs() << "Can't find -dis-symname: " << DisSymName << "\n"; |
6645 | return; |
6646 | } |
6647 | // Set up the block of info used by the Symbolizer call backs. |
6648 | SymbolizerInfo.verbose = !NoSymbolicOperands; |
6649 | SymbolizerInfo.O = MachOOF; |
6650 | SymbolizerInfo.S = Sections[SectIdx]; |
6651 | SymbolizerInfo.AddrMap = &AddrMap; |
6652 | SymbolizerInfo.Sections = &Sections; |
6653 | SymbolizerInfo.class_name = nullptr; |
6654 | SymbolizerInfo.selector_name = nullptr; |
6655 | SymbolizerInfo.method = nullptr; |
6656 | SymbolizerInfo.demangled_name = nullptr; |
6657 | SymbolizerInfo.bindtable = nullptr; |
6658 | SymbolizerInfo.adrp_addr = 0; |
6659 | SymbolizerInfo.adrp_inst = 0; |
6660 | // Same for the ThumbSymbolizer |
6661 | ThumbSymbolizerInfo.verbose = !NoSymbolicOperands; |
6662 | ThumbSymbolizerInfo.O = MachOOF; |
6663 | ThumbSymbolizerInfo.S = Sections[SectIdx]; |
6664 | ThumbSymbolizerInfo.AddrMap = &AddrMap; |
6665 | ThumbSymbolizerInfo.Sections = &Sections; |
6666 | ThumbSymbolizerInfo.class_name = nullptr; |
6667 | ThumbSymbolizerInfo.selector_name = nullptr; |
6668 | ThumbSymbolizerInfo.method = nullptr; |
6669 | ThumbSymbolizerInfo.demangled_name = nullptr; |
6670 | ThumbSymbolizerInfo.bindtable = nullptr; |
6671 | ThumbSymbolizerInfo.adrp_addr = 0; |
6672 | ThumbSymbolizerInfo.adrp_inst = 0; |
6673 | |
6674 | unsigned int Arch = MachOOF->getArch(); |
6675 | |
6676 | // Skip all symbols if this is a stubs file. |
6677 | if (Bytes.size() == 0) |
6678 | return; |
6679 | |
6680 | // If the section has symbols but no symbol at the start of the section |
6681 | // these are used to make sure the bytes before the first symbol are |
6682 | // disassembled. |
6683 | bool FirstSymbol = true; |
6684 | bool FirstSymbolAtSectionStart = true; |
6685 | |
6686 | // Disassemble symbol by symbol. |
6687 | for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { |
6688 | Expected<StringRef> SymNameOrErr = Symbols[SymIdx].getName(); |
6689 | if (!SymNameOrErr) |
6690 | report_error(MachOOF->getFileName(), SymNameOrErr.takeError()); |
6691 | StringRef SymName = *SymNameOrErr; |
6692 | |
6693 | Expected<SymbolRef::Type> STOrErr = Symbols[SymIdx].getType(); |
6694 | if (!STOrErr) |
6695 | report_error(MachOOF->getFileName(), STOrErr.takeError()); |
6696 | SymbolRef::Type ST = *STOrErr; |
6697 | if (ST != SymbolRef::ST_Function && ST != SymbolRef::ST_Data) |
6698 | continue; |
6699 | |
6700 | // Make sure the symbol is defined in this section. |
6701 | bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]); |
6702 | if (!containsSym) { |
6703 | if (!DisSymName.empty() && DisSymName == SymName) { |
6704 | outs() << "-dis-symname: " << DisSymName << " not in the section\n"; |
6705 | return; |
6706 | } |
6707 | continue; |
6708 | } |
6709 | // The __mh_execute_header is special and we need to deal with that fact |
6710 | // this symbol is before the start of the (__TEXT,__text) section and at the |
6711 | // address of the start of the __TEXT segment. This is because this symbol |
6712 | // is an N_SECT symbol in the (__TEXT,__text) but its address is before the |
6713 | // start of the section in a standard MH_EXECUTE filetype. |
6714 | if (!DisSymName.empty() && DisSymName == "__mh_execute_header") { |
6715 | outs() << "-dis-symname: __mh_execute_header not in any section\n"; |
6716 | return; |
6717 | } |
6718 | // When this code is trying to disassemble a symbol at a time and in the |
6719 | // case there is only the __mh_execute_header symbol left as in a stripped |
6720 | // executable, we need to deal with this by ignoring this symbol so the |
6721 | // whole section is disassembled and this symbol is then not displayed. |
6722 | if (SymName == "__mh_execute_header" || SymName == "__mh_dylib_header" || |
6723 | SymName == "__mh_bundle_header" || SymName == "__mh_object_header" || |
6724 | SymName == "__mh_preload_header" || SymName == "__mh_dylinker_header") |
6725 | continue; |
6726 | |
6727 | // If we are only disassembling one symbol see if this is that symbol. |
6728 | if (!DisSymName.empty() && DisSymName != SymName) |
6729 | continue; |
6730 | |
6731 | // Start at the address of the symbol relative to the section's address. |
6732 | uint64_t SectSize = Sections[SectIdx].getSize(); |
6733 | uint64_t Start = Symbols[SymIdx].getValue(); |
6734 | uint64_t SectionAddress = Sections[SectIdx].getAddress(); |
6735 | Start -= SectionAddress; |
6736 | |
6737 | if (Start > SectSize) { |
6738 | outs() << "section data ends, " << SymName |
6739 | << " lies outside valid range\n"; |
6740 | return; |
6741 | } |
6742 | |
6743 | // Stop disassembling either at the beginning of the next symbol or at |
6744 | // the end of the section. |
6745 | bool containsNextSym = false; |
6746 | uint64_t NextSym = 0; |
6747 | uint64_t NextSymIdx = SymIdx + 1; |
6748 | while (Symbols.size() > NextSymIdx) { |
6749 | Expected<SymbolRef::Type> STOrErr = Symbols[NextSymIdx].getType(); |
6750 | if (!STOrErr) |
6751 | report_error(MachOOF->getFileName(), STOrErr.takeError()); |
6752 | SymbolRef::Type NextSymType = *STOrErr; |
6753 | if (NextSymType == SymbolRef::ST_Function) { |
6754 | containsNextSym = |
6755 | Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]); |
6756 | NextSym = Symbols[NextSymIdx].getValue(); |
6757 | NextSym -= SectionAddress; |
6758 | break; |
6759 | } |
6760 | ++NextSymIdx; |
6761 | } |
6762 | |
6763 | uint64_t End = containsNextSym ? std::min(NextSym, SectSize) : SectSize; |
6764 | uint64_t Size; |
6765 | |
6766 | symbolTableWorked = true; |
6767 | |
6768 | DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl(); |
6769 | bool IsThumb = MachOOF->getSymbolFlags(Symb) & SymbolRef::SF_Thumb; |
6770 | |
6771 | // We only need the dedicated Thumb target if there's a real choice |
6772 | // (i.e. we're not targeting M-class) and the function is Thumb. |
6773 | bool UseThumbTarget = IsThumb && ThumbTarget; |
6774 | |
6775 | // If we are not specifying a symbol to start disassembly with and this |
6776 | // is the first symbol in the section but not at the start of the section |
6777 | // then move the disassembly index to the start of the section and |
6778 | // don't print the symbol name just yet. This is so the bytes before the |
6779 | // first symbol are disassembled. |
6780 | uint64_t SymbolStart = Start; |
6781 | if (DisSymName.empty() && FirstSymbol && Start != 0) { |
6782 | FirstSymbolAtSectionStart = false; |
6783 | Start = 0; |
6784 | } |
6785 | else |
6786 | outs() << SymName << ":\n"; |
6787 | |
6788 | DILineInfo lastLine; |
6789 | for (uint64_t Index = Start; Index < End; Index += Size) { |
6790 | MCInst Inst; |
6791 | |
6792 | // If this is the first symbol in the section and it was not at the |
6793 | // start of the section, see if we are at its Index now and if so print |
6794 | // the symbol name. |
6795 | if (FirstSymbol && !FirstSymbolAtSectionStart && Index == SymbolStart) |
6796 | outs() << SymName << ":\n"; |
6797 | |
6798 | uint64_t PC = SectAddress + Index; |
6799 | if (!NoLeadingAddr) { |
6800 | if (FullLeadingAddr) { |
6801 | if (MachOOF->is64Bit()) |
6802 | outs() << format("%016" PRIx64"l" "x", PC); |
6803 | else |
6804 | outs() << format("%08" PRIx64"l" "x", PC); |
6805 | } else { |
6806 | outs() << format("%8" PRIx64"l" "x" ":", PC); |
6807 | } |
6808 | } |
6809 | if (!NoShowRawInsn || Arch == Triple::arm) |
6810 | outs() << "\t"; |
6811 | |
6812 | // Check the data in code table here to see if this is data not an |
6813 | // instruction to be disassembled. |
6814 | DiceTable Dice; |
6815 | Dice.push_back(std::make_pair(PC, DiceRef())); |
6816 | dice_table_iterator DTI = |
6817 | std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(), |
6818 | compareDiceTableEntries); |
6819 | if (DTI != Dices.end()) { |
6820 | uint16_t Length; |
6821 | DTI->second.getLength(Length); |
6822 | uint16_t Kind; |
6823 | DTI->second.getKind(Kind); |
6824 | Size = DumpDataInCode(Bytes.data() + Index, Length, Kind); |
6825 | if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) && |
6826 | (PC == (DTI->first + Length - 1)) && (Length & 1)) |
6827 | Size++; |
6828 | continue; |
6829 | } |
6830 | |
6831 | SmallVector<char, 64> AnnotationsBytes; |
6832 | raw_svector_ostream Annotations(AnnotationsBytes); |
6833 | |
6834 | bool gotInst; |
6835 | if (UseThumbTarget) |
6836 | gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index), |
6837 | PC, DebugOut, Annotations); |
6838 | else |
6839 | gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC, |
6840 | DebugOut, Annotations); |
6841 | if (gotInst) { |
6842 | if (!NoShowRawInsn || Arch == Triple::arm) { |
6843 | dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs()); |
6844 | } |
6845 | formatted_raw_ostream FormattedOS(outs()); |
6846 | StringRef AnnotationsStr = Annotations.str(); |
6847 | if (UseThumbTarget) |
6848 | ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI); |
6849 | else |
6850 | IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI); |
6851 | emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo); |
6852 | |
6853 | // Print debug info. |
6854 | if (diContext) { |
6855 | DILineInfo dli = diContext->getLineInfoForAddress(PC); |
6856 | // Print valid line info if it changed. |
6857 | if (dli != lastLine && dli.Line != 0) |
6858 | outs() << "\t## " << dli.FileName << ':' << dli.Line << ':' |
6859 | << dli.Column; |
6860 | lastLine = dli; |
6861 | } |
6862 | outs() << "\n"; |
6863 | } else { |
6864 | unsigned int Arch = MachOOF->getArch(); |
6865 | if (Arch == Triple::x86_64 || Arch == Triple::x86) { |
6866 | outs() << format("\t.byte 0x%02x #bad opcode\n", |
6867 | *(Bytes.data() + Index) & 0xff); |
6868 | Size = 1; // skip exactly one illegible byte and move on. |
6869 | } else if (Arch == Triple::aarch64 || |
6870 | (Arch == Triple::arm && !IsThumb)) { |
6871 | uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | |
6872 | (*(Bytes.data() + Index + 1) & 0xff) << 8 | |
6873 | (*(Bytes.data() + Index + 2) & 0xff) << 16 | |
6874 | (*(Bytes.data() + Index + 3) & 0xff) << 24; |
6875 | outs() << format("\t.long\t0x%08x\n", opcode); |
6876 | Size = 4; |
6877 | } else if (Arch == Triple::arm) { |
6878 | assert(IsThumb && "ARM mode should have been dealt with above")((IsThumb && "ARM mode should have been dealt with above" ) ? static_cast<void> (0) : __assert_fail ("IsThumb && \"ARM mode should have been dealt with above\"" , "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/llvm-objdump/MachODump.cpp" , 6878, __PRETTY_FUNCTION__)); |
6879 | uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | |
6880 | (*(Bytes.data() + Index + 1) & 0xff) << 8; |
6881 | outs() << format("\t.short\t0x%04x\n", opcode); |
6882 | Size = 2; |
6883 | } else{ |
6884 | errs() << "llvm-objdump: warning: invalid instruction encoding\n"; |
6885 | if (Size == 0) |
6886 | Size = 1; // skip illegible bytes |
6887 | } |
6888 | } |
6889 | } |
6890 | // Now that we are done disassembled the first symbol set the bool that |
6891 | // were doing this to false. |
6892 | FirstSymbol = false; |
6893 | } |
6894 | if (!symbolTableWorked) { |
6895 | // Reading the symbol table didn't work, disassemble the whole section. |
6896 | uint64_t SectAddress = Sections[SectIdx].getAddress(); |
6897 | uint64_t SectSize = Sections[SectIdx].getSize(); |
6898 | uint64_t InstSize; |
6899 | for (uint64_t Index = 0; Index < SectSize; Index += InstSize) { |
6900 | MCInst Inst; |
6901 | |
6902 | uint64_t PC = SectAddress + Index; |
6903 | SmallVector<char, 64> AnnotationsBytes; |
6904 | raw_svector_ostream Annotations(AnnotationsBytes); |
6905 | if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC, |
6906 | DebugOut, Annotations)) { |
6907 | if (!NoLeadingAddr) { |
6908 | if (FullLeadingAddr) { |
6909 | if (MachOOF->is64Bit()) |
6910 | outs() << format("%016" PRIx64"l" "x", PC); |
6911 | else |
6912 | outs() << format("%08" PRIx64"l" "x", PC); |
6913 | } else { |
6914 | outs() << format("%8" PRIx64"l" "x" ":", PC); |
6915 | } |
6916 | } |
6917 | if (!NoShowRawInsn || Arch == Triple::arm) { |
6918 | outs() << "\t"; |
6919 | dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs()); |
6920 | } |
6921 | StringRef AnnotationsStr = Annotations.str(); |
6922 | IP->printInst(&Inst, outs(), AnnotationsStr, *STI); |
6923 | outs() << "\n"; |
6924 | } else { |
6925 | unsigned int Arch = MachOOF->getArch(); |
6926 | if (Arch == Triple::x86_64 || Arch == Triple::x86) { |
6927 | outs() << format("\t.byte 0x%02x #bad opcode\n", |
6928 | *(Bytes.data() + Index) & 0xff); |
6929 | InstSize = 1; // skip exactly one illegible byte and move on. |
6930 | } else { |
6931 | errs() << "llvm-objdump: warning: invalid instruction encoding\n"; |
6932 | if (InstSize == 0) |
6933 | InstSize = 1; // skip illegible bytes |
6934 | } |
6935 | } |
6936 | } |
6937 | } |
6938 | // The TripleName's need to be reset if we are called again for a different |
6939 | // archtecture. |
6940 | TripleName = ""; |
6941 | ThumbTripleName = ""; |
6942 | |
6943 | if (SymbolizerInfo.method != nullptr) |
6944 | free(SymbolizerInfo.method); |
6945 | if (SymbolizerInfo.demangled_name != nullptr) |
6946 | free(SymbolizerInfo.demangled_name); |
6947 | if (ThumbSymbolizerInfo.method != nullptr) |
6948 | free(ThumbSymbolizerInfo.method); |
6949 | if (ThumbSymbolizerInfo.demangled_name != nullptr) |
6950 | free(ThumbSymbolizerInfo.demangled_name); |
6951 | } |
6952 | } |
6953 | |
6954 | //===----------------------------------------------------------------------===// |
6955 | // __compact_unwind section dumping |
6956 | //===----------------------------------------------------------------------===// |
6957 | |
6958 | namespace { |
6959 | |
6960 | template <typename T> static uint64_t readNext(const char *&Buf) { |
6961 | using llvm::support::little; |
6962 | using llvm::support::unaligned; |
6963 | |
6964 | uint64_t Val = support::endian::read<T, little, unaligned>(Buf); |
6965 | Buf += sizeof(T); |
6966 | return Val; |
6967 | } |
6968 | |
6969 | struct CompactUnwindEntry { |
6970 | uint32_t OffsetInSection; |
6971 | |
6972 | uint64_t FunctionAddr; |
6973 | uint32_t Length; |
6974 | uint32_t CompactEncoding; |
6975 | uint64_t PersonalityAddr; |
6976 | uint64_t LSDAAddr; |
6977 | |
6978 | RelocationRef FunctionReloc; |
6979 | RelocationRef PersonalityReloc; |
6980 | RelocationRef LSDAReloc; |
6981 | |
6982 | CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64) |
6983 | : OffsetInSection(Offset) { |
6984 | if (Is64) |
6985 | read<uint64_t>(Contents.data() + Offset); |
6986 | else |
6987 | read<uint32_t>(Contents.data() + Offset); |
6988 | } |
6989 | |
6990 | private: |
6991 | template <typename UIntPtr> void read(const char *Buf) { |
6992 | FunctionAddr = readNext<UIntPtr>(Buf); |
6993 | Length = readNext<uint32_t>(Buf); |
6994 | CompactEncoding = readNext<uint32_t>(Buf); |
6995 | PersonalityAddr = readNext<UIntPtr>(Buf); |
6996 | LSDAAddr = readNext<UIntPtr>(Buf); |
6997 | } |
6998 | }; |
6999 | } |
7000 | |
7001 | /// Given a relocation from __compact_unwind, consisting of the RelocationRef |
7002 | /// and data being relocated, determine the best base Name and Addend to use for |
7003 | /// display purposes. |
7004 | /// |
7005 | /// 1. An Extern relocation will directly reference a symbol (and the data is |
7006 | /// then already an addend), so use that. |
7007 | /// 2. Otherwise the data is an offset in the object file's layout; try to find |
7008 | // a symbol before it in the same section, and use the offset from there. |
7009 | /// 3. Finally, if all that fails, fall back to an offset from the start of the |
7010 | /// referenced section. |
7011 | static void findUnwindRelocNameAddend(const MachOObjectFile *Obj, |
7012 | std::map<uint64_t, SymbolRef> &Symbols, |
7013 | const RelocationRef &Reloc, uint64_t Addr, |
7014 | StringRef &Name, uint64_t &Addend) { |
7015 | if (Reloc.getSymbol() != Obj->symbol_end()) { |
7016 | Expected<StringRef> NameOrErr = Reloc.getSymbol()->getName(); |
7017 | if (!NameOrErr) |
7018 | report_error(Obj->getFileName(), NameOrErr.takeError()); |
7019 | Name = *NameOrErr; |
7020 | Addend = Addr; |
7021 | return; |
7022 | } |
7023 | |
7024 | auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl()); |
7025 | SectionRef RelocSection = Obj->getAnyRelocationSection(RE); |
7026 | |
7027 | uint64_t SectionAddr = RelocSection.getAddress(); |
7028 | |
7029 | auto Sym = Symbols.upper_bound(Addr); |
7030 | if (Sym == Symbols.begin()) { |
7031 | // The first symbol in the object is after this reference, the best we can |
7032 | // do is section-relative notation. |
7033 | RelocSection.getName(Name); |
7034 | Addend = Addr - SectionAddr; |
7035 | return; |
7036 | } |
7037 | |
7038 | // Go back one so that SymbolAddress <= Addr. |
7039 | --Sym; |
7040 | |
7041 | auto SectOrErr = Sym->second.getSection(); |
7042 | if (!SectOrErr) |
7043 | report_error(Obj->getFileName(), SectOrErr.takeError()); |
7044 | section_iterator SymSection = *SectOrErr; |
7045 | if (RelocSection == *SymSection) { |
7046 | // There's a valid symbol in the same section before this reference. |
7047 | Expected<StringRef> NameOrErr = Sym->second.getName(); |
7048 | if (!NameOrErr) |
7049 | report_error(Obj->getFileName(), NameOrErr.takeError()); |
7050 | Name = *NameOrErr; |
7051 | Addend = Addr - Sym->first; |
7052 | return; |
7053 | } |
7054 | |
7055 | // There is a symbol before this reference, but it's in a different |
7056 | // section. Probably not helpful to mention it, so use the section name. |
7057 | RelocSection.getName(Name); |
7058 | Addend = Addr - SectionAddr; |
7059 | } |
7060 | |
7061 | static void printUnwindRelocDest(const MachOObjectFile *Obj, |
7062 | std::map<uint64_t, SymbolRef> &Symbols, |
7063 | const RelocationRef &Reloc, uint64_t Addr) { |
7064 | StringRef Name; |
7065 | uint64_t Addend; |
7066 | |
7067 | if (!Reloc.getObject()) |
7068 | return; |
7069 | |
7070 | findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend); |
7071 | |
7072 | outs() << Name; |
7073 | if (Addend) |
7074 | outs() << " + " << format("0x%" PRIx64"l" "x", Addend); |
7075 | } |
7076 | |
7077 | static void |
7078 | printMachOCompactUnwindSection(const MachOObjectFile *Obj, |
7079 | std::map<uint64_t, SymbolRef> &Symbols, |
7080 | const SectionRef &CompactUnwind) { |
7081 | |
7082 | if (!Obj->isLittleEndian()) { |
7083 | outs() << "Skipping big-endian __compact_unwind section\n"; |
7084 | return; |
7085 | } |
7086 | |
7087 | bool Is64 = Obj->is64Bit(); |
7088 | uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t); |
7089 | uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t); |
7090 | |
7091 | StringRef Contents; |
7092 | CompactUnwind.getContents(Contents); |
7093 | |
7094 | SmallVector<CompactUnwindEntry, 4> CompactUnwinds; |
7095 | |
7096 | // First populate the initial raw offsets, encodings and so on from the entry. |
7097 | for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) { |
7098 | CompactUnwindEntry Entry(Contents.data(), Offset, Is64); |
7099 | CompactUnwinds.push_back(Entry); |
7100 | } |
7101 | |
7102 | // Next we need to look at the relocations to find out what objects are |
7103 | // actually being referred to. |
7104 | for (const RelocationRef &Reloc : CompactUnwind.relocations()) { |
7105 | uint64_t RelocAddress = Reloc.getOffset(); |
7106 | |
7107 | uint32_t EntryIdx = RelocAddress / EntrySize; |
7108 | uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize; |
7109 | CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx]; |
7110 | |
7111 | if (OffsetInEntry == 0) |
7112 | Entry.FunctionReloc = Reloc; |
7113 | else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t)) |
7114 | Entry.PersonalityReloc = Reloc; |
7115 | else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t)) |
7116 | Entry.LSDAReloc = Reloc; |
7117 | else { |
7118 | outs() << "Invalid relocation in __compact_unwind section\n"; |
7119 | return; |
7120 | } |
7121 | } |
7122 | |
7123 | // Finally, we're ready to print the data we've gathered. |
7124 | outs() << "Contents of __compact_unwind section:\n"; |
7125 | for (auto &Entry : CompactUnwinds) { |
7126 | outs() << " Entry at offset " |
7127 | << format("0x%" PRIx32"x", Entry.OffsetInSection) << ":\n"; |
7128 | |
7129 | // 1. Start of the region this entry applies to. |
7130 | outs() << " start: " << format("0x%" PRIx64"l" "x", |
7131 | Entry.FunctionAddr) << ' '; |
7132 | printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr); |
7133 | outs() << '\n'; |
7134 | |
7135 | // 2. Length of the region this entry applies to. |
7136 | outs() << " length: " << format("0x%" PRIx32"x", Entry.Length) |
7137 | << '\n'; |
7138 | // 3. The 32-bit compact encoding. |
7139 | outs() << " compact encoding: " |
7140 | << format("0x%08" PRIx32"x", Entry.CompactEncoding) << '\n'; |
7141 | |
7142 | // 4. The personality function, if present. |
7143 | if (Entry.PersonalityReloc.getObject()) { |
7144 | outs() << " personality function: " |
7145 | << format("0x%" PRIx64"l" "x", Entry.PersonalityAddr) << ' '; |
7146 | printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc, |
7147 | Entry.PersonalityAddr); |
7148 | outs() << '\n'; |
7149 | } |
7150 | |
7151 | // 5. This entry's language-specific data area. |
7152 | if (Entry.LSDAReloc.getObject()) { |
7153 | outs() << " LSDA: " << format("0x%" PRIx64"l" "x", |
7154 | Entry.LSDAAddr) << ' '; |
7155 | printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr); |
7156 | outs() << '\n'; |
7157 | } |
7158 | } |
7159 | } |
7160 | |
7161 | //===----------------------------------------------------------------------===// |
7162 | // __unwind_info section dumping |
7163 | //===----------------------------------------------------------------------===// |
7164 | |
7165 | static void printRegularSecondLevelUnwindPage(const char *PageStart) { |
7166 | const char *Pos = PageStart; |
7167 | uint32_t Kind = readNext<uint32_t>(Pos); |
7168 | (void)Kind; |
7169 | assert(Kind == 2 && "kind for a regular 2nd level index should be 2")((Kind == 2 && "kind for a regular 2nd level index should be 2" ) ? static_cast<void> (0) : __assert_fail ("Kind == 2 && \"kind for a regular 2nd level index should be 2\"" , "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/llvm-objdump/MachODump.cpp" , 7169, __PRETTY_FUNCTION__)); |
7170 | |
7171 | uint16_t EntriesStart = readNext<uint16_t>(Pos); |
7172 | uint16_t NumEntries = readNext<uint16_t>(Pos); |
7173 | |
7174 | Pos = PageStart + EntriesStart; |
7175 | for (unsigned i = 0; i < NumEntries; ++i) { |
7176 | uint32_t FunctionOffset = readNext<uint32_t>(Pos); |
7177 | uint32_t Encoding = readNext<uint32_t>(Pos); |
7178 | |
7179 | outs() << " [" << i << "]: " |
7180 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
7181 | << ", " |
7182 | << "encoding=" << format("0x%08" PRIx32"x", Encoding) << '\n'; |
7183 | } |
7184 | } |
7185 | |
7186 | static void printCompressedSecondLevelUnwindPage( |
7187 | const char *PageStart, uint32_t FunctionBase, |
7188 | const SmallVectorImpl<uint32_t> &CommonEncodings) { |
7189 | const char *Pos = PageStart; |
7190 | uint32_t Kind = readNext<uint32_t>(Pos); |
7191 | (void)Kind; |
7192 | assert(Kind == 3 && "kind for a compressed 2nd level index should be 3")((Kind == 3 && "kind for a compressed 2nd level index should be 3" ) ? static_cast<void> (0) : __assert_fail ("Kind == 3 && \"kind for a compressed 2nd level index should be 3\"" , "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/llvm-objdump/MachODump.cpp" , 7192, __PRETTY_FUNCTION__)); |
7193 | |
7194 | uint16_t EntriesStart = readNext<uint16_t>(Pos); |
7195 | uint16_t NumEntries = readNext<uint16_t>(Pos); |
7196 | |
7197 | uint16_t EncodingsStart = readNext<uint16_t>(Pos); |
7198 | readNext<uint16_t>(Pos); |
7199 | const auto *PageEncodings = reinterpret_cast<const support::ulittle32_t *>( |
7200 | PageStart + EncodingsStart); |
7201 | |
7202 | Pos = PageStart + EntriesStart; |
7203 | for (unsigned i = 0; i < NumEntries; ++i) { |
7204 | uint32_t Entry = readNext<uint32_t>(Pos); |
7205 | uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff); |
7206 | uint32_t EncodingIdx = Entry >> 24; |
7207 | |
7208 | uint32_t Encoding; |
7209 | if (EncodingIdx < CommonEncodings.size()) |
7210 | Encoding = CommonEncodings[EncodingIdx]; |
7211 | else |
7212 | Encoding = PageEncodings[EncodingIdx - CommonEncodings.size()]; |
7213 | |
7214 | outs() << " [" << i << "]: " |
7215 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
7216 | << ", " |
7217 | << "encoding[" << EncodingIdx |
7218 | << "]=" << format("0x%08" PRIx32"x", Encoding) << '\n'; |
7219 | } |
7220 | } |
7221 | |
7222 | static void printMachOUnwindInfoSection(const MachOObjectFile *Obj, |
7223 | std::map<uint64_t, SymbolRef> &Symbols, |
7224 | const SectionRef &UnwindInfo) { |
7225 | |
7226 | if (!Obj->isLittleEndian()) { |
7227 | outs() << "Skipping big-endian __unwind_info section\n"; |
7228 | return; |
7229 | } |
7230 | |
7231 | outs() << "Contents of __unwind_info section:\n"; |
7232 | |
7233 | StringRef Contents; |
7234 | UnwindInfo.getContents(Contents); |
7235 | const char *Pos = Contents.data(); |
7236 | |
7237 | //===---------------------------------- |
7238 | // Section header |
7239 | //===---------------------------------- |
7240 | |
7241 | uint32_t Version = readNext<uint32_t>(Pos); |
7242 | outs() << " Version: " |
7243 | << format("0x%" PRIx32"x", Version) << '\n'; |
7244 | if (Version != 1) { |
7245 | outs() << " Skipping section with unknown version\n"; |
7246 | return; |
7247 | } |
7248 | |
7249 | uint32_t CommonEncodingsStart = readNext<uint32_t>(Pos); |
7250 | outs() << " Common encodings array section offset: " |
7251 | << format("0x%" PRIx32"x", CommonEncodingsStart) << '\n'; |
7252 | uint32_t NumCommonEncodings = readNext<uint32_t>(Pos); |
7253 | outs() << " Number of common encodings in array: " |
7254 | << format("0x%" PRIx32"x", NumCommonEncodings) << '\n'; |
7255 | |
7256 | uint32_t PersonalitiesStart = readNext<uint32_t>(Pos); |
7257 | outs() << " Personality function array section offset: " |
7258 | << format("0x%" PRIx32"x", PersonalitiesStart) << '\n'; |
7259 | uint32_t NumPersonalities = readNext<uint32_t>(Pos); |
7260 | outs() << " Number of personality functions in array: " |
7261 | << format("0x%" PRIx32"x", NumPersonalities) << '\n'; |
7262 | |
7263 | uint32_t IndicesStart = readNext<uint32_t>(Pos); |
7264 | outs() << " Index array section offset: " |
7265 | << format("0x%" PRIx32"x", IndicesStart) << '\n'; |
7266 | uint32_t NumIndices = readNext<uint32_t>(Pos); |
7267 | outs() << " Number of indices in array: " |
7268 | << format("0x%" PRIx32"x", NumIndices) << '\n'; |
7269 | |
7270 | //===---------------------------------- |
7271 | // A shared list of common encodings |
7272 | //===---------------------------------- |
7273 | |
7274 | // These occupy indices in the range [0, N] whenever an encoding is referenced |
7275 | // from a compressed 2nd level index table. In practice the linker only |
7276 | // creates ~128 of these, so that indices are available to embed encodings in |
7277 | // the 2nd level index. |
7278 | |
7279 | SmallVector<uint32_t, 64> CommonEncodings; |
7280 | outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n"; |
7281 | Pos = Contents.data() + CommonEncodingsStart; |
7282 | for (unsigned i = 0; i < NumCommonEncodings; ++i) { |
7283 | uint32_t Encoding = readNext<uint32_t>(Pos); |
7284 | CommonEncodings.push_back(Encoding); |
7285 | |
7286 | outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32"x", Encoding) |
7287 | << '\n'; |
7288 | } |
7289 | |
7290 | //===---------------------------------- |
7291 | // Personality functions used in this executable |
7292 | //===---------------------------------- |
7293 | |
7294 | // There should be only a handful of these (one per source language, |
7295 | // roughly). Particularly since they only get 2 bits in the compact encoding. |
7296 | |
7297 | outs() << " Personality functions: (count = " << NumPersonalities << ")\n"; |
7298 | Pos = Contents.data() + PersonalitiesStart; |
7299 | for (unsigned i = 0; i < NumPersonalities; ++i) { |
7300 | uint32_t PersonalityFn = readNext<uint32_t>(Pos); |
7301 | outs() << " personality[" << i + 1 |
7302 | << "]: " << format("0x%08" PRIx32"x", PersonalityFn) << '\n'; |
7303 | } |
7304 | |
7305 | //===---------------------------------- |
7306 | // The level 1 index entries |
7307 | //===---------------------------------- |
7308 | |
7309 | // These specify an approximate place to start searching for the more detailed |
7310 | // information, sorted by PC. |
7311 | |
7312 | struct IndexEntry { |
7313 | uint32_t FunctionOffset; |
7314 | uint32_t SecondLevelPageStart; |
7315 | uint32_t LSDAStart; |
7316 | }; |
7317 | |
7318 | SmallVector<IndexEntry, 4> IndexEntries; |
7319 | |
7320 | outs() << " Top level indices: (count = " << NumIndices << ")\n"; |
7321 | Pos = Contents.data() + IndicesStart; |
7322 | for (unsigned i = 0; i < NumIndices; ++i) { |
7323 | IndexEntry Entry; |
7324 | |
7325 | Entry.FunctionOffset = readNext<uint32_t>(Pos); |
7326 | Entry.SecondLevelPageStart = readNext<uint32_t>(Pos); |
7327 | Entry.LSDAStart = readNext<uint32_t>(Pos); |
7328 | IndexEntries.push_back(Entry); |
7329 | |
7330 | outs() << " [" << i << "]: " |
7331 | << "function offset=" << format("0x%08" PRIx32"x", Entry.FunctionOffset) |
7332 | << ", " |
7333 | << "2nd level page offset=" |
7334 | << format("0x%08" PRIx32"x", Entry.SecondLevelPageStart) << ", " |
7335 | << "LSDA offset=" << format("0x%08" PRIx32"x", Entry.LSDAStart) << '\n'; |
7336 | } |
7337 | |
7338 | //===---------------------------------- |
7339 | // Next come the LSDA tables |
7340 | //===---------------------------------- |
7341 | |
7342 | // The LSDA layout is rather implicit: it's a contiguous array of entries from |
7343 | // the first top-level index's LSDAOffset to the last (sentinel). |
7344 | |
7345 | outs() << " LSDA descriptors:\n"; |
7346 | Pos = Contents.data() + IndexEntries[0].LSDAStart; |
7347 | int NumLSDAs = (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) / |
7348 | (2 * sizeof(uint32_t)); |
7349 | for (int i = 0; i < NumLSDAs; ++i) { |
7350 | uint32_t FunctionOffset = readNext<uint32_t>(Pos); |
7351 | uint32_t LSDAOffset = readNext<uint32_t>(Pos); |
7352 | outs() << " [" << i << "]: " |
7353 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
7354 | << ", " |
7355 | << "LSDA offset=" << format("0x%08" PRIx32"x", LSDAOffset) << '\n'; |
7356 | } |
7357 | |
7358 | //===---------------------------------- |
7359 | // Finally, the 2nd level indices |
7360 | //===---------------------------------- |
7361 | |
7362 | // Generally these are 4K in size, and have 2 possible forms: |
7363 | // + Regular stores up to 511 entries with disparate encodings |
7364 | // + Compressed stores up to 1021 entries if few enough compact encoding |
7365 | // values are used. |
7366 | outs() << " Second level indices:\n"; |
7367 | for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) { |
7368 | // The final sentinel top-level index has no associated 2nd level page |
7369 | if (IndexEntries[i].SecondLevelPageStart == 0) |
7370 | break; |
7371 | |
7372 | outs() << " Second level index[" << i << "]: " |
7373 | << "offset in section=" |
7374 | << format("0x%08" PRIx32"x", IndexEntries[i].SecondLevelPageStart) |
7375 | << ", " |
7376 | << "base function offset=" |
7377 | << format("0x%08" PRIx32"x", IndexEntries[i].FunctionOffset) << '\n'; |
7378 | |
7379 | Pos = Contents.data() + IndexEntries[i].SecondLevelPageStart; |
7380 | uint32_t Kind = *reinterpret_cast<const support::ulittle32_t *>(Pos); |
7381 | if (Kind == 2) |
7382 | printRegularSecondLevelUnwindPage(Pos); |
7383 | else if (Kind == 3) |
7384 | printCompressedSecondLevelUnwindPage(Pos, IndexEntries[i].FunctionOffset, |
7385 | CommonEncodings); |
7386 | else |
7387 | outs() << " Skipping 2nd level page with unknown kind " << Kind |
7388 | << '\n'; |
7389 | } |
7390 | } |
7391 | |
7392 | void llvm::printMachOUnwindInfo(const MachOObjectFile *Obj) { |
7393 | std::map<uint64_t, SymbolRef> Symbols; |
7394 | for (const SymbolRef &SymRef : Obj->symbols()) { |
7395 | // Discard any undefined or absolute symbols. They're not going to take part |
7396 | // in the convenience lookup for unwind info and just take up resources. |
7397 | auto SectOrErr = SymRef.getSection(); |
7398 | if (!SectOrErr) { |
7399 | // TODO: Actually report errors helpfully. |
7400 | consumeError(SectOrErr.takeError()); |
7401 | continue; |
7402 | } |
7403 | section_iterator Section = *SectOrErr; |
7404 | if (Section == Obj->section_end()) |
7405 | continue; |
7406 | |
7407 | uint64_t Addr = SymRef.getValue(); |
7408 | Symbols.insert(std::make_pair(Addr, SymRef)); |
7409 | } |
7410 | |
7411 | for (const SectionRef &Section : Obj->sections()) { |
7412 | StringRef SectName; |
7413 | Section.getName(SectName); |
7414 | if (SectName == "__compact_unwind") |
7415 | printMachOCompactUnwindSection(Obj, Symbols, Section); |
7416 | else if (SectName == "__unwind_info") |
7417 | printMachOUnwindInfoSection(Obj, Symbols, Section); |
7418 | } |
7419 | } |
7420 | |
7421 | static void PrintMachHeader(uint32_t magic, uint32_t cputype, |
7422 | uint32_t cpusubtype, uint32_t filetype, |
7423 | uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags, |
7424 | bool verbose) { |
7425 | outs() << "Mach header\n"; |
7426 | outs() << " magic cputype cpusubtype caps filetype ncmds " |
7427 | "sizeofcmds flags\n"; |
7428 | if (verbose) { |
7429 | if (magic == MachO::MH_MAGIC) |
7430 | outs() << " MH_MAGIC"; |
7431 | else if (magic == MachO::MH_MAGIC_64) |
7432 | outs() << "MH_MAGIC_64"; |
7433 | else |
7434 | outs() << format(" 0x%08" PRIx32"x", magic); |
7435 | switch (cputype) { |
7436 | case MachO::CPU_TYPE_I386: |
7437 | outs() << " I386"; |
7438 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7439 | case MachO::CPU_SUBTYPE_I386_ALL: |
7440 | outs() << " ALL"; |
7441 | break; |
7442 | default: |
7443 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7444 | break; |
7445 | } |
7446 | break; |
7447 | case MachO::CPU_TYPE_X86_64: |
7448 | outs() << " X86_64"; |
7449 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7450 | case MachO::CPU_SUBTYPE_X86_64_ALL: |
7451 | outs() << " ALL"; |
7452 | break; |
7453 | case MachO::CPU_SUBTYPE_X86_64_H: |
7454 | outs() << " Haswell"; |
7455 | break; |
7456 | default: |
7457 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7458 | break; |
7459 | } |
7460 | break; |
7461 | case MachO::CPU_TYPE_ARM: |
7462 | outs() << " ARM"; |
7463 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7464 | case MachO::CPU_SUBTYPE_ARM_ALL: |
7465 | outs() << " ALL"; |
7466 | break; |
7467 | case MachO::CPU_SUBTYPE_ARM_V4T: |
7468 | outs() << " V4T"; |
7469 | break; |
7470 | case MachO::CPU_SUBTYPE_ARM_V5TEJ: |
7471 | outs() << " V5TEJ"; |
7472 | break; |
7473 | case MachO::CPU_SUBTYPE_ARM_XSCALE: |
7474 | outs() << " XSCALE"; |
7475 | break; |
7476 | case MachO::CPU_SUBTYPE_ARM_V6: |
7477 | outs() << " V6"; |
7478 | break; |
7479 | case MachO::CPU_SUBTYPE_ARM_V6M: |
7480 | outs() << " V6M"; |
7481 | break; |
7482 | case MachO::CPU_SUBTYPE_ARM_V7: |
7483 | outs() << " V7"; |
7484 | break; |
7485 | case MachO::CPU_SUBTYPE_ARM_V7EM: |
7486 | outs() << " V7EM"; |
7487 | break; |
7488 | case MachO::CPU_SUBTYPE_ARM_V7K: |
7489 | outs() << " V7K"; |
7490 | break; |
7491 | case MachO::CPU_SUBTYPE_ARM_V7M: |
7492 | outs() << " V7M"; |
7493 | break; |
7494 | case MachO::CPU_SUBTYPE_ARM_V7S: |
7495 | outs() << " V7S"; |
7496 | break; |
7497 | default: |
7498 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7499 | break; |
7500 | } |
7501 | break; |
7502 | case MachO::CPU_TYPE_ARM64: |
7503 | outs() << " ARM64"; |
7504 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7505 | case MachO::CPU_SUBTYPE_ARM64_ALL: |
7506 | outs() << " ALL"; |
7507 | break; |
7508 | default: |
7509 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7510 | break; |
7511 | } |
7512 | break; |
7513 | case MachO::CPU_TYPE_POWERPC: |
7514 | outs() << " PPC"; |
7515 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7516 | case MachO::CPU_SUBTYPE_POWERPC_ALL: |
7517 | outs() << " ALL"; |
7518 | break; |
7519 | default: |
7520 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7521 | break; |
7522 | } |
7523 | break; |
7524 | case MachO::CPU_TYPE_POWERPC64: |
7525 | outs() << " PPC64"; |
7526 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7527 | case MachO::CPU_SUBTYPE_POWERPC_ALL: |
7528 | outs() << " ALL"; |
7529 | break; |
7530 | default: |
7531 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7532 | break; |
7533 | } |
7534 | break; |
7535 | default: |
7536 | outs() << format(" %7d", cputype); |
7537 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7538 | break; |
7539 | } |
7540 | if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) { |
7541 | outs() << " LIB64"; |
7542 | } else { |
7543 | outs() << format(" 0x%02" PRIx32"x", |
7544 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); |
7545 | } |
7546 | switch (filetype) { |
7547 | case MachO::MH_OBJECT: |
7548 | outs() << " OBJECT"; |
7549 | break; |
7550 | case MachO::MH_EXECUTE: |
7551 | outs() << " EXECUTE"; |
7552 | break; |
7553 | case MachO::MH_FVMLIB: |
7554 | outs() << " FVMLIB"; |
7555 | break; |
7556 | case MachO::MH_CORE: |
7557 | outs() << " CORE"; |
7558 | break; |
7559 | case MachO::MH_PRELOAD: |
7560 | outs() << " PRELOAD"; |
7561 | break; |
7562 | case MachO::MH_DYLIB: |
7563 | outs() << " DYLIB"; |
7564 | break; |
7565 | case MachO::MH_DYLIB_STUB: |
7566 | outs() << " DYLIB_STUB"; |
7567 | break; |
7568 | case MachO::MH_DYLINKER: |
7569 | outs() << " DYLINKER"; |
7570 | break; |
7571 | case MachO::MH_BUNDLE: |
7572 | outs() << " BUNDLE"; |
7573 | break; |
7574 | case MachO::MH_DSYM: |
7575 | outs() << " DSYM"; |
7576 | break; |
7577 | case MachO::MH_KEXT_BUNDLE: |
7578 | outs() << " KEXTBUNDLE"; |
7579 | break; |
7580 | default: |
7581 | outs() << format(" %10u", filetype); |
7582 | break; |
7583 | } |
7584 | outs() << format(" %5u", ncmds); |
7585 | outs() << format(" %10u", sizeofcmds); |
7586 | uint32_t f = flags; |
7587 | if (f & MachO::MH_NOUNDEFS) { |
7588 | outs() << " NOUNDEFS"; |
7589 | f &= ~MachO::MH_NOUNDEFS; |
7590 | } |
7591 | if (f & MachO::MH_INCRLINK) { |
7592 | outs() << " INCRLINK"; |
7593 | f &= ~MachO::MH_INCRLINK; |
7594 | } |
7595 | if (f & MachO::MH_DYLDLINK) { |
7596 | outs() << " DYLDLINK"; |
7597 | f &= ~MachO::MH_DYLDLINK; |
7598 | } |
7599 | if (f & MachO::MH_BINDATLOAD) { |
7600 | outs() << " BINDATLOAD"; |
7601 | f &= ~MachO::MH_BINDATLOAD; |
7602 | } |
7603 | if (f & MachO::MH_PREBOUND) { |
7604 | outs() << " PREBOUND"; |
7605 | f &= ~MachO::MH_PREBOUND; |
7606 | } |
7607 | if (f & MachO::MH_SPLIT_SEGS) { |
7608 | outs() << " SPLIT_SEGS"; |
7609 | f &= ~MachO::MH_SPLIT_SEGS; |
7610 | } |
7611 | if (f & MachO::MH_LAZY_INIT) { |
7612 | outs() << " LAZY_INIT"; |
7613 | f &= ~MachO::MH_LAZY_INIT; |
7614 | } |
7615 | if (f & MachO::MH_TWOLEVEL) { |
7616 | outs() << " TWOLEVEL"; |
7617 | f &= ~MachO::MH_TWOLEVEL; |
7618 | } |
7619 | if (f & MachO::MH_FORCE_FLAT) { |
7620 | outs() << " FORCE_FLAT"; |
7621 | f &= ~MachO::MH_FORCE_FLAT; |
7622 | } |
7623 | if (f & MachO::MH_NOMULTIDEFS) { |
7624 | outs() << " NOMULTIDEFS"; |
7625 | f &= ~MachO::MH_NOMULTIDEFS; |
7626 | } |
7627 | if (f & MachO::MH_NOFIXPREBINDING) { |
7628 | outs() << " NOFIXPREBINDING"; |
7629 | f &= ~MachO::MH_NOFIXPREBINDING; |
7630 | } |
7631 | if (f & MachO::MH_PREBINDABLE) { |
7632 | outs() << " PREBINDABLE"; |
7633 | f &= ~MachO::MH_PREBINDABLE; |
7634 | } |
7635 | if (f & MachO::MH_ALLMODSBOUND) { |
7636 | outs() << " ALLMODSBOUND"; |
7637 | f &= ~MachO::MH_ALLMODSBOUND; |
7638 | } |
7639 | if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) { |
7640 | outs() << " SUBSECTIONS_VIA_SYMBOLS"; |
7641 | f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS; |
7642 | } |
7643 | if (f & MachO::MH_CANONICAL) { |
7644 | outs() << " CANONICAL"; |
7645 | f &= ~MachO::MH_CANONICAL; |
7646 | } |
7647 | if (f & MachO::MH_WEAK_DEFINES) { |
7648 | outs() << " WEAK_DEFINES"; |
7649 | f &= ~MachO::MH_WEAK_DEFINES; |
7650 | } |
7651 | if (f & MachO::MH_BINDS_TO_WEAK) { |
7652 | outs() << " BINDS_TO_WEAK"; |
7653 | f &= ~MachO::MH_BINDS_TO_WEAK; |
7654 | } |
7655 | if (f & MachO::MH_ALLOW_STACK_EXECUTION) { |
7656 | outs() << " ALLOW_STACK_EXECUTION"; |
7657 | f &= ~MachO::MH_ALLOW_STACK_EXECUTION; |
7658 | } |
7659 | if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) { |
7660 | outs() << " DEAD_STRIPPABLE_DYLIB"; |
7661 | f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB; |
7662 | } |
7663 | if (f & MachO::MH_PIE) { |
7664 | outs() << " PIE"; |
7665 | f &= ~MachO::MH_PIE; |
7666 | } |
7667 | if (f & MachO::MH_NO_REEXPORTED_DYLIBS) { |
7668 | outs() << " NO_REEXPORTED_DYLIBS"; |
7669 | f &= ~MachO::MH_NO_REEXPORTED_DYLIBS; |
7670 | } |
7671 | if (f & MachO::MH_HAS_TLV_DESCRIPTORS) { |
7672 | outs() << " MH_HAS_TLV_DESCRIPTORS"; |
7673 | f &= ~MachO::MH_HAS_TLV_DESCRIPTORS; |
7674 | } |
7675 | if (f & MachO::MH_NO_HEAP_EXECUTION) { |
7676 | outs() << " MH_NO_HEAP_EXECUTION"; |
7677 | f &= ~MachO::MH_NO_HEAP_EXECUTION; |
7678 | } |
7679 | if (f & MachO::MH_APP_EXTENSION_SAFE) { |
7680 | outs() << " APP_EXTENSION_SAFE"; |
7681 | f &= ~MachO::MH_APP_EXTENSION_SAFE; |
7682 | } |
7683 | if (f & MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO) { |
7684 | outs() << " NLIST_OUTOFSYNC_WITH_DYLDINFO"; |
7685 | f &= ~MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO; |
7686 | } |
7687 | if (f != 0 || flags == 0) |
7688 | outs() << format(" 0x%08" PRIx32"x", f); |
7689 | } else { |
7690 | outs() << format(" 0x%08" PRIx32"x", magic); |
7691 | outs() << format(" %7d", cputype); |
7692 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7693 | outs() << format(" 0x%02" PRIx32"x", |
7694 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); |
7695 | outs() << format(" %10u", filetype); |
7696 | outs() << format(" %5u", ncmds); |
7697 | outs() << format(" %10u", sizeofcmds); |
7698 | outs() << format(" 0x%08" PRIx32"x", flags); |
7699 | } |
7700 | outs() << "\n"; |
7701 | } |
7702 | |
7703 | static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize, |
7704 | StringRef SegName, uint64_t vmaddr, |
7705 | uint64_t vmsize, uint64_t fileoff, |
7706 | uint64_t filesize, uint32_t maxprot, |
7707 | uint32_t initprot, uint32_t nsects, |
7708 | uint32_t flags, uint32_t object_size, |
7709 | bool verbose) { |
7710 | uint64_t expected_cmdsize; |
7711 | if (cmd == MachO::LC_SEGMENT) { |
7712 | outs() << " cmd LC_SEGMENT\n"; |
7713 | expected_cmdsize = nsects; |
7714 | expected_cmdsize *= sizeof(struct MachO::section); |
7715 | expected_cmdsize += sizeof(struct MachO::segment_command); |
7716 | } else { |
7717 | outs() << " cmd LC_SEGMENT_64\n"; |
7718 | expected_cmdsize = nsects; |
7719 | expected_cmdsize *= sizeof(struct MachO::section_64); |
7720 | expected_cmdsize += sizeof(struct MachO::segment_command_64); |
7721 | } |
7722 | outs() << " cmdsize " << cmdsize; |
7723 | if (cmdsize != expected_cmdsize) |
7724 | outs() << " Inconsistent size\n"; |
7725 | else |
7726 | outs() << "\n"; |
7727 | outs() << " segname " << SegName << "\n"; |
7728 | if (cmd == MachO::LC_SEGMENT_64) { |
7729 | outs() << " vmaddr " << format("0x%016" PRIx64"l" "x", vmaddr) << "\n"; |
7730 | outs() << " vmsize " << format("0x%016" PRIx64"l" "x", vmsize) << "\n"; |
7731 | } else { |
7732 | outs() << " vmaddr " << format("0x%08" PRIx64"l" "x", vmaddr) << "\n"; |
7733 | outs() << " vmsize " << format("0x%08" PRIx64"l" "x", vmsize) << "\n"; |
7734 | } |
7735 | outs() << " fileoff " << fileoff; |
7736 | if (fileoff > object_size) |
7737 | outs() << " (past end of file)\n"; |
7738 | else |
7739 | outs() << "\n"; |
7740 | outs() << " filesize " << filesize; |
7741 | if (fileoff + filesize > object_size) |
7742 | outs() << " (past end of file)\n"; |
7743 | else |
7744 | outs() << "\n"; |
7745 | if (verbose) { |
7746 | if ((maxprot & |
7747 | ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | |
7748 | MachO::VM_PROT_EXECUTE)) != 0) |
7749 | outs() << " maxprot ?" << format("0x%08" PRIx32"x", maxprot) << "\n"; |
7750 | else { |
7751 | outs() << " maxprot "; |
7752 | outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-"); |
7753 | outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-"); |
7754 | outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); |
7755 | } |
7756 | if ((initprot & |
7757 | ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | |
7758 | MachO::VM_PROT_EXECUTE)) != 0) |
7759 | outs() << " initprot ?" << format("0x%08" PRIx32"x", initprot) << "\n"; |
7760 | else { |
7761 | outs() << " initprot "; |
7762 | outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-"); |
7763 | outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-"); |
7764 | outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); |
7765 | } |
7766 | } else { |
7767 | outs() << " maxprot " << format("0x%08" PRIx32"x", maxprot) << "\n"; |
7768 | outs() << " initprot " << format("0x%08" PRIx32"x", initprot) << "\n"; |
7769 | } |
7770 | outs() << " nsects " << nsects << "\n"; |
7771 | if (verbose) { |
7772 | outs() << " flags"; |
7773 | if (flags == 0) |
7774 | outs() << " (none)\n"; |
7775 | else { |
7776 | if (flags & MachO::SG_HIGHVM) { |
7777 | outs() << " HIGHVM"; |
7778 | flags &= ~MachO::SG_HIGHVM; |
7779 | } |
7780 | if (flags & MachO::SG_FVMLIB) { |
7781 | outs() << " FVMLIB"; |
7782 | flags &= ~MachO::SG_FVMLIB; |
7783 | } |
7784 | if (flags & MachO::SG_NORELOC) { |
7785 | outs() << " NORELOC"; |
7786 | flags &= ~MachO::SG_NORELOC; |
7787 | } |
7788 | if (flags & MachO::SG_PROTECTED_VERSION_1) { |
7789 | outs() << " PROTECTED_VERSION_1"; |
7790 | flags &= ~MachO::SG_PROTECTED_VERSION_1; |
7791 | } |
7792 | if (flags) |
7793 | outs() << format(" 0x%08" PRIx32"x", flags) << " (unknown flags)\n"; |
7794 | else |
7795 | outs() << "\n"; |
7796 | } |
7797 | } else { |
7798 | outs() << " flags " << format("0x%" PRIx32"x", flags) << "\n"; |
7799 | } |
7800 | } |
7801 | |
7802 | static void PrintSection(const char *sectname, const char *segname, |
7803 | uint64_t addr, uint64_t size, uint32_t offset, |
7804 | uint32_t align, uint32_t reloff, uint32_t nreloc, |
7805 | uint32_t flags, uint32_t reserved1, uint32_t reserved2, |
7806 | uint32_t cmd, const char *sg_segname, |
7807 | uint32_t filetype, uint32_t object_size, |
7808 | bool verbose) { |
7809 | outs() << "Section\n"; |
7810 | outs() << " sectname " << format("%.16s\n", sectname); |
7811 | outs() << " segname " << format("%.16s", segname); |
7812 | if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0) |
7813 | outs() << " (does not match segment)\n"; |
7814 | else |
7815 | outs() << "\n"; |
7816 | if (cmd == MachO::LC_SEGMENT_64) { |
7817 | outs() << " addr " << format("0x%016" PRIx64"l" "x", addr) << "\n"; |
7818 | outs() << " size " << format("0x%016" PRIx64"l" "x", size); |
7819 | } else { |
7820 | outs() << " addr " << format("0x%08" PRIx64"l" "x", addr) << "\n"; |
7821 | outs() << " size " << format("0x%08" PRIx64"l" "x", size); |
7822 | } |
7823 | if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size) |
7824 | outs() << " (past end of file)\n"; |
7825 | else |
7826 | outs() << "\n"; |
7827 | outs() << " offset " << offset; |
7828 | if (offset > object_size) |
7829 | outs() << " (past end of file)\n"; |
7830 | else |
7831 | outs() << "\n"; |
7832 | uint32_t align_shifted = 1 << align; |
7833 | outs() << " align 2^" << align << " (" << align_shifted << ")\n"; |
7834 | outs() << " reloff " << reloff; |
7835 | if (reloff > object_size) |
7836 | outs() << " (past end of file)\n"; |
7837 | else |
7838 | outs() << "\n"; |
7839 | outs() << " nreloc " << nreloc; |
7840 | if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size) |
7841 | outs() << " (past end of file)\n"; |
7842 | else |
7843 | outs() << "\n"; |
7844 | uint32_t section_type = flags & MachO::SECTION_TYPE; |
7845 | if (verbose) { |
7846 | outs() << " type"; |
7847 | if (section_type == MachO::S_REGULAR) |
7848 | outs() << " S_REGULAR\n"; |
7849 | else if (section_type == MachO::S_ZEROFILL) |
7850 | outs() << " S_ZEROFILL\n"; |
7851 | else if (section_type == MachO::S_CSTRING_LITERALS) |
7852 | outs() << " S_CSTRING_LITERALS\n"; |
7853 | else if (section_type == MachO::S_4BYTE_LITERALS) |
7854 | outs() << " S_4BYTE_LITERALS\n"; |
7855 | else if (section_type == MachO::S_8BYTE_LITERALS) |
7856 | outs() << " S_8BYTE_LITERALS\n"; |
7857 | else if (section_type == MachO::S_16BYTE_LITERALS) |
7858 | outs() << " S_16BYTE_LITERALS\n"; |
7859 | else if (section_type == MachO::S_LITERAL_POINTERS) |
7860 | outs() << " S_LITERAL_POINTERS\n"; |
7861 | else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS) |
7862 | outs() << " S_NON_LAZY_SYMBOL_POINTERS\n"; |
7863 | else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS) |
7864 | outs() << " S_LAZY_SYMBOL_POINTERS\n"; |
7865 | else if (section_type == MachO::S_SYMBOL_STUBS) |
7866 | outs() << " S_SYMBOL_STUBS\n"; |
7867 | else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS) |
7868 | outs() << " S_MOD_INIT_FUNC_POINTERS\n"; |
7869 | else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS) |
7870 | outs() << " S_MOD_TERM_FUNC_POINTERS\n"; |
7871 | else if (section_type == MachO::S_COALESCED) |
7872 | outs() << " S_COALESCED\n"; |
7873 | else if (section_type == MachO::S_INTERPOSING) |
7874 | outs() << " S_INTERPOSING\n"; |
7875 | else if (section_type == MachO::S_DTRACE_DOF) |
7876 | outs() << " S_DTRACE_DOF\n"; |
7877 | else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS) |
7878 | outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n"; |
7879 | else if (section_type == MachO::S_THREAD_LOCAL_REGULAR) |
7880 | outs() << " S_THREAD_LOCAL_REGULAR\n"; |
7881 | else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL) |
7882 | outs() << " S_THREAD_LOCAL_ZEROFILL\n"; |
7883 | else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES) |
7884 | outs() << " S_THREAD_LOCAL_VARIABLES\n"; |
7885 | else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) |
7886 | outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n"; |
7887 | else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS) |
7888 | outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n"; |
7889 | else |
7890 | outs() << format("0x%08" PRIx32"x", section_type) << "\n"; |
7891 | outs() << "attributes"; |
7892 | uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES; |
7893 | if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS) |
7894 | outs() << " PURE_INSTRUCTIONS"; |
7895 | if (section_attributes & MachO::S_ATTR_NO_TOC) |
7896 | outs() << " NO_TOC"; |
7897 | if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS) |
7898 | outs() << " STRIP_STATIC_SYMS"; |
7899 | if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP) |
7900 | outs() << " NO_DEAD_STRIP"; |
7901 | if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT) |
7902 | outs() << " LIVE_SUPPORT"; |
7903 | if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE) |
7904 | outs() << " SELF_MODIFYING_CODE"; |
7905 | if (section_attributes & MachO::S_ATTR_DEBUG) |
7906 | outs() << " DEBUG"; |
7907 | if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS) |
7908 | outs() << " SOME_INSTRUCTIONS"; |
7909 | if (section_attributes & MachO::S_ATTR_EXT_RELOC) |
7910 | outs() << " EXT_RELOC"; |
7911 | if (section_attributes & MachO::S_ATTR_LOC_RELOC) |
7912 | outs() << " LOC_RELOC"; |
7913 | if (section_attributes == 0) |
7914 | outs() << " (none)"; |
7915 | outs() << "\n"; |
7916 | } else |
7917 | outs() << " flags " << format("0x%08" PRIx32"x", flags) << "\n"; |
7918 | outs() << " reserved1 " << reserved1; |
7919 | if (section_type == MachO::S_SYMBOL_STUBS || |
7920 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
7921 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
7922 | section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
7923 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) |
7924 | outs() << " (index into indirect symbol table)\n"; |
7925 | else |
7926 | outs() << "\n"; |
7927 | outs() << " reserved2 " << reserved2; |
7928 | if (section_type == MachO::S_SYMBOL_STUBS) |
7929 | outs() << " (size of stubs)\n"; |
7930 | else |
7931 | outs() << "\n"; |
7932 | } |
7933 | |
7934 | static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit, |
7935 | uint32_t object_size) { |
7936 | outs() << " cmd LC_SYMTAB\n"; |
7937 | outs() << " cmdsize " << st.cmdsize; |
7938 | if (st.cmdsize != sizeof(struct MachO::symtab_command)) |
7939 | outs() << " Incorrect size\n"; |
7940 | else |
7941 | outs() << "\n"; |
7942 | outs() << " symoff " << st.symoff; |
7943 | if (st.symoff > object_size) |
7944 | outs() << " (past end of file)\n"; |
7945 | else |
7946 | outs() << "\n"; |
7947 | outs() << " nsyms " << st.nsyms; |
7948 | uint64_t big_size; |
7949 | if (Is64Bit) { |
7950 | big_size = st.nsyms; |
7951 | big_size *= sizeof(struct MachO::nlist_64); |
7952 | big_size += st.symoff; |
7953 | if (big_size > object_size) |
7954 | outs() << " (past end of file)\n"; |
7955 | else |
7956 | outs() << "\n"; |
7957 | } else { |
7958 | big_size = st.nsyms; |
7959 | big_size *= sizeof(struct MachO::nlist); |
7960 | big_size += st.symoff; |
7961 | if (big_size > object_size) |
7962 | outs() << " (past end of file)\n"; |
7963 | else |
7964 | outs() << "\n"; |
7965 | } |
7966 | outs() << " stroff " << st.stroff; |
7967 | if (st.stroff > object_size) |
7968 | outs() << " (past end of file)\n"; |
7969 | else |
7970 | outs() << "\n"; |
7971 | outs() << " strsize " << st.strsize; |
7972 | big_size = st.stroff; |
7973 | big_size += st.strsize; |
7974 | if (big_size > object_size) |
7975 | outs() << " (past end of file)\n"; |
7976 | else |
7977 | outs() << "\n"; |
7978 | } |
7979 | |
7980 | static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst, |
7981 | uint32_t nsyms, uint32_t object_size, |
7982 | bool Is64Bit) { |
7983 | outs() << " cmd LC_DYSYMTAB\n"; |
7984 | outs() << " cmdsize " << dyst.cmdsize; |
7985 | if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command)) |
7986 | outs() << " Incorrect size\n"; |
7987 | else |
7988 | outs() << "\n"; |
7989 | outs() << " ilocalsym " << dyst.ilocalsym; |
7990 | if (dyst.ilocalsym > nsyms) |
7991 | outs() << " (greater than the number of symbols)\n"; |
7992 | else |
7993 | outs() << "\n"; |
7994 | outs() << " nlocalsym " << dyst.nlocalsym; |
7995 | uint64_t big_size; |
7996 | big_size = dyst.ilocalsym; |
7997 | big_size += dyst.nlocalsym; |
7998 | if (big_size > nsyms) |
7999 | outs() << " (past the end of the symbol table)\n"; |
8000 | else |
8001 | outs() << "\n"; |
8002 | outs() << " iextdefsym " << dyst.iextdefsym; |
8003 | if (dyst.iextdefsym > nsyms) |
8004 | outs() << " (greater than the number of symbols)\n"; |
8005 | else |
8006 | outs() << "\n"; |
8007 | outs() << " nextdefsym " << dyst.nextdefsym; |
8008 | big_size = dyst.iextdefsym; |
8009 | big_size += dyst.nextdefsym; |
8010 | if (big_size > nsyms) |
8011 | outs() << " (past the end of the symbol table)\n"; |
8012 | else |
8013 | outs() << "\n"; |
8014 | outs() << " iundefsym " << dyst.iundefsym; |
8015 | if (dyst.iundefsym > nsyms) |
8016 | outs() << " (greater than the number of symbols)\n"; |
8017 | else |
8018 | outs() << "\n"; |
8019 | outs() << " nundefsym " << dyst.nundefsym; |
8020 | big_size = dyst.iundefsym; |
8021 | big_size += dyst.nundefsym; |
8022 | if (big_size > nsyms) |
8023 | outs() << " (past the end of the symbol table)\n"; |
8024 | else |
8025 | outs() << "\n"; |
8026 | outs() << " tocoff " << dyst.tocoff; |
8027 | if (dyst.tocoff > object_size) |
8028 | outs() << " (past end of file)\n"; |
8029 | else |
8030 | outs() << "\n"; |
8031 | outs() << " ntoc " << dyst.ntoc; |
8032 | big_size = dyst.ntoc; |
8033 | big_size *= sizeof(struct MachO::dylib_table_of_contents); |
8034 | big_size += dyst.tocoff; |
8035 | if (big_size > object_size) |
8036 | outs() << " (past end of file)\n"; |
8037 | else |
8038 | outs() << "\n"; |
8039 | outs() << " modtaboff " << dyst.modtaboff; |
8040 | if (dyst.modtaboff > object_size) |
8041 | outs() << " (past end of file)\n"; |
8042 | else |
8043 | outs() << "\n"; |
8044 | outs() << " nmodtab " << dyst.nmodtab; |
8045 | uint64_t modtabend; |
8046 | if (Is64Bit) { |
8047 | modtabend = dyst.nmodtab; |
8048 | modtabend *= sizeof(struct MachO::dylib_module_64); |
8049 | modtabend += dyst.modtaboff; |
8050 | } else { |
8051 | modtabend = dyst.nmodtab; |
8052 | modtabend *= sizeof(struct MachO::dylib_module); |
8053 | modtabend += dyst.modtaboff; |
8054 | } |
8055 | if (modtabend > object_size) |
8056 | outs() << " (past end of file)\n"; |
8057 | else |
8058 | outs() << "\n"; |
8059 | outs() << " extrefsymoff " << dyst.extrefsymoff; |
8060 | if (dyst.extrefsymoff > object_size) |
8061 | outs() << " (past end of file)\n"; |
8062 | else |
8063 | outs() << "\n"; |
8064 | outs() << " nextrefsyms " << dyst.nextrefsyms; |
8065 | big_size = dyst.nextrefsyms; |
8066 | big_size *= sizeof(struct MachO::dylib_reference); |
8067 | big_size += dyst.extrefsymoff; |
8068 | if (big_size > object_size) |
8069 | outs() << " (past end of file)\n"; |
8070 | else |
8071 | outs() << "\n"; |
8072 | outs() << " indirectsymoff " << dyst.indirectsymoff; |
8073 | if (dyst.indirectsymoff > object_size) |
8074 | outs() << " (past end of file)\n"; |
8075 | else |
8076 | outs() << "\n"; |
8077 | outs() << " nindirectsyms " << dyst.nindirectsyms; |
8078 | big_size = dyst.nindirectsyms; |
8079 | big_size *= sizeof(uint32_t); |
8080 | big_size += dyst.indirectsymoff; |
8081 | if (big_size > object_size) |
8082 | outs() << " (past end of file)\n"; |
8083 | else |
8084 | outs() << "\n"; |
8085 | outs() << " extreloff " << dyst.extreloff; |
8086 | if (dyst.extreloff > object_size) |
8087 | outs() << " (past end of file)\n"; |
8088 | else |
8089 | outs() << "\n"; |
8090 | outs() << " nextrel " << dyst.nextrel; |
8091 | big_size = dyst.nextrel; |
8092 | big_size *= sizeof(struct MachO::relocation_info); |
8093 | big_size += dyst.extreloff; |
8094 | if (big_size > object_size) |
8095 | outs() << " (past end of file)\n"; |
8096 | else |
8097 | outs() << "\n"; |
8098 | outs() << " locreloff " << dyst.locreloff; |
8099 | if (dyst.locreloff > object_size) |
8100 | outs() << " (past end of file)\n"; |
8101 | else |
8102 | outs() << "\n"; |
8103 | outs() << " nlocrel " << dyst.nlocrel; |
8104 | big_size = dyst.nlocrel; |
8105 | big_size *= sizeof(struct MachO::relocation_info); |
8106 | big_size += dyst.locreloff; |
8107 | if (big_size > object_size) |
8108 | outs() << " (past end of file)\n"; |
8109 | else |
8110 | outs() << "\n"; |
8111 | } |
8112 | |
8113 | static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc, |
8114 | uint32_t object_size) { |
8115 | if (dc.cmd == MachO::LC_DYLD_INFO) |
8116 | outs() << " cmd LC_DYLD_INFO\n"; |
8117 | else |
8118 | outs() << " cmd LC_DYLD_INFO_ONLY\n"; |
8119 | outs() << " cmdsize " << dc.cmdsize; |
8120 | if (dc.cmdsize != sizeof(struct MachO::dyld_info_command)) |
8121 | outs() << " Incorrect size\n"; |
8122 | else |
8123 | outs() << "\n"; |
8124 | outs() << " rebase_off " << dc.rebase_off; |
8125 | if (dc.rebase_off > object_size) |
8126 | outs() << " (past end of file)\n"; |
8127 | else |
8128 | outs() << "\n"; |
8129 | outs() << " rebase_size " << dc.rebase_size; |
8130 | uint64_t big_size; |
8131 | big_size = dc.rebase_off; |
8132 | big_size += dc.rebase_size; |
8133 | if (big_size > object_size) |
8134 | outs() << " (past end of file)\n"; |
8135 | else |
8136 | outs() << "\n"; |
8137 | outs() << " bind_off " << dc.bind_off; |
8138 | if (dc.bind_off > object_size) |
8139 | outs() << " (past end of file)\n"; |
8140 | else |
8141 | outs() << "\n"; |
8142 | outs() << " bind_size " << dc.bind_size; |
8143 | big_size = dc.bind_off; |
8144 | big_size += dc.bind_size; |
8145 | if (big_size > object_size) |
8146 | outs() << " (past end of file)\n"; |
8147 | else |
8148 | outs() << "\n"; |
8149 | outs() << " weak_bind_off " << dc.weak_bind_off; |
8150 | if (dc.weak_bind_off > object_size) |
8151 | outs() << " (past end of file)\n"; |
8152 | else |
8153 | outs() << "\n"; |
8154 | outs() << " weak_bind_size " << dc.weak_bind_size; |
8155 | big_size = dc.weak_bind_off; |
8156 | big_size += dc.weak_bind_size; |
8157 | if (big_size > object_size) |
8158 | outs() << " (past end of file)\n"; |
8159 | else |
8160 | outs() << "\n"; |
8161 | outs() << " lazy_bind_off " << dc.lazy_bind_off; |
8162 | if (dc.lazy_bind_off > object_size) |
8163 | outs() << " (past end of file)\n"; |
8164 | else |
8165 | outs() << "\n"; |
8166 | outs() << " lazy_bind_size " << dc.lazy_bind_size; |
8167 | big_size = dc.lazy_bind_off; |
8168 | big_size += dc.lazy_bind_size; |
8169 | if (big_size > object_size) |
8170 | outs() << " (past end of file)\n"; |
8171 | else |
8172 | outs() << "\n"; |
8173 | outs() << " export_off " << dc.export_off; |
8174 | if (dc.export_off > object_size) |
8175 | outs() << " (past end of file)\n"; |
8176 | else |
8177 | outs() << "\n"; |
8178 | outs() << " export_size " << dc.export_size; |
8179 | big_size = dc.export_off; |
8180 | big_size += dc.export_size; |
8181 | if (big_size > object_size) |
8182 | outs() << " (past end of file)\n"; |
8183 | else |
8184 | outs() << "\n"; |
8185 | } |
8186 | |
8187 | static void PrintDyldLoadCommand(MachO::dylinker_command dyld, |
8188 | const char *Ptr) { |
8189 | if (dyld.cmd == MachO::LC_ID_DYLINKER) |
8190 | outs() << " cmd LC_ID_DYLINKER\n"; |
8191 | else if (dyld.cmd == MachO::LC_LOAD_DYLINKER) |
8192 | outs() << " cmd LC_LOAD_DYLINKER\n"; |
8193 | else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT) |
8194 | outs() << " cmd LC_DYLD_ENVIRONMENT\n"; |
8195 | else |
8196 | outs() << " cmd ?(" << dyld.cmd << ")\n"; |
8197 | outs() << " cmdsize " << dyld.cmdsize; |
8198 | if (dyld.cmdsize < sizeof(struct MachO::dylinker_command)) |
8199 | outs() << " Incorrect size\n"; |
8200 | else |
8201 | outs() << "\n"; |
8202 | if (dyld.name >= dyld.cmdsize) |
8203 | outs() << " name ?(bad offset " << dyld.name << ")\n"; |
8204 | else { |
8205 | const char *P = (const char *)(Ptr) + dyld.name; |
8206 | outs() << " name " << P << " (offset " << dyld.name << ")\n"; |
8207 | } |
8208 | } |
8209 | |
8210 | static void PrintUuidLoadCommand(MachO::uuid_command uuid) { |
8211 | outs() << " cmd LC_UUID\n"; |
8212 | outs() << " cmdsize " << uuid.cmdsize; |
8213 | if (uuid.cmdsize != sizeof(struct MachO::uuid_command)) |
8214 | outs() << " Incorrect size\n"; |
8215 | else |
8216 | outs() << "\n"; |
8217 | outs() << " uuid "; |
8218 | for (int i = 0; i < 16; ++i) { |
8219 | outs() << format("%02" PRIX32"X", uuid.uuid[i]); |
8220 | if (i == 3 || i == 5 || i == 7 || i == 9) |
8221 | outs() << "-"; |
8222 | } |
8223 | outs() << "\n"; |
8224 | } |
8225 | |
8226 | static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) { |
8227 | outs() << " cmd LC_RPATH\n"; |
8228 | outs() << " cmdsize " << rpath.cmdsize; |
8229 | if (rpath.cmdsize < sizeof(struct MachO::rpath_command)) |
8230 | outs() << " Incorrect size\n"; |
8231 | else |
8232 | outs() << "\n"; |
8233 | if (rpath.path >= rpath.cmdsize) |
8234 | outs() << " path ?(bad offset " << rpath.path << ")\n"; |
8235 | else { |
8236 | const char *P = (const char *)(Ptr) + rpath.path; |
8237 | outs() << " path " << P << " (offset " << rpath.path << ")\n"; |
8238 | } |
8239 | } |
8240 | |
8241 | static void PrintVersionMinLoadCommand(MachO::version_min_command vd) { |
8242 | StringRef LoadCmdName; |
8243 | switch (vd.cmd) { |
8244 | case MachO::LC_VERSION_MIN_MACOSX: |
8245 | LoadCmdName = "LC_VERSION_MIN_MACOSX"; |
8246 | break; |
8247 | case MachO::LC_VERSION_MIN_IPHONEOS: |
8248 | LoadCmdName = "LC_VERSION_MIN_IPHONEOS"; |
8249 | break; |
8250 | case MachO::LC_VERSION_MIN_TVOS: |
8251 | LoadCmdName = "LC_VERSION_MIN_TVOS"; |
8252 | break; |
8253 | case MachO::LC_VERSION_MIN_WATCHOS: |
8254 | LoadCmdName = "LC_VERSION_MIN_WATCHOS"; |
8255 | break; |
8256 | default: |
8257 | llvm_unreachable("Unknown version min load command")::llvm::llvm_unreachable_internal("Unknown version min load command" , "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/llvm-objdump/MachODump.cpp" , 8257); |
8258 | } |
8259 | |
8260 | outs() << " cmd " << LoadCmdName << '\n'; |
8261 | outs() << " cmdsize " << vd.cmdsize; |
8262 | if (vd.cmdsize != sizeof(struct MachO::version_min_command)) |
8263 | outs() << " Incorrect size\n"; |
8264 | else |
8265 | outs() << "\n"; |
8266 | outs() << " version " |
8267 | << MachOObjectFile::getVersionMinMajor(vd, false) << "." |
8268 | << MachOObjectFile::getVersionMinMinor(vd, false); |
8269 | uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false); |
8270 | if (Update != 0) |
8271 | outs() << "." << Update; |
8272 | outs() << "\n"; |
8273 | if (vd.sdk == 0) |
8274 | outs() << " sdk n/a"; |
8275 | else { |
8276 | outs() << " sdk " |
8277 | << MachOObjectFile::getVersionMinMajor(vd, true) << "." |
8278 | << MachOObjectFile::getVersionMinMinor(vd, true); |
8279 | } |
8280 | Update = MachOObjectFile::getVersionMinUpdate(vd, true); |
8281 | if (Update != 0) |
8282 | outs() << "." << Update; |
8283 | outs() << "\n"; |
8284 | } |
8285 | |
8286 | static void PrintNoteLoadCommand(MachO::note_command Nt) { |
8287 | outs() << " cmd LC_NOTE\n"; |
8288 | outs() << " cmdsize " << Nt.cmdsize; |
8289 | if (Nt.cmdsize != sizeof(struct MachO::note_command)) |
8290 | outs() << " Incorrect size\n"; |
8291 | else |
8292 | outs() << "\n"; |
8293 | const char *d = Nt.data_owner; |
8294 | outs() << "data_owner " << format("%.16s\n", d); |
8295 | outs() << " offset " << Nt.offset << "\n"; |
8296 | outs() << " size " << Nt.size << "\n"; |
8297 | } |
8298 | |
8299 | static void PrintBuildToolVersion(MachO::build_tool_version bv) { |
8300 | outs() << " tool " << MachOObjectFile::getBuildTool(bv.tool) << "\n"; |
8301 | outs() << " version " << MachOObjectFile::getVersionString(bv.version) |
8302 | << "\n"; |
8303 | } |
8304 | |
8305 | static void PrintBuildVersionLoadCommand(const MachOObjectFile *obj, |
8306 | MachO::build_version_command bd) { |
8307 | outs() << " cmd LC_BUILD_VERSION\n"; |
8308 | outs() << " cmdsize " << bd.cmdsize; |
8309 | if (bd.cmdsize != |
8310 | sizeof(struct MachO::build_version_command) + |
8311 | bd.ntools * sizeof(struct MachO::build_tool_version)) |
8312 | outs() << " Incorrect size\n"; |
8313 | else |
8314 | outs() << "\n"; |
8315 | outs() << " platform " << MachOObjectFile::getBuildPlatform(bd.platform) |
8316 | << "\n"; |
8317 | if (bd.sdk) |
8318 | outs() << " sdk " << MachOObjectFile::getVersionString(bd.sdk) |
8319 | << "\n"; |
8320 | else |
8321 | outs() << " sdk n/a\n"; |
8322 | outs() << " minos " << MachOObjectFile::getVersionString(bd.minos) |
8323 | << "\n"; |
8324 | outs() << " ntools " << bd.ntools << "\n"; |
8325 | for (unsigned i = 0; i < bd.ntools; ++i) { |
8326 | MachO::build_tool_version bv = obj->getBuildToolVersion(i); |
8327 | PrintBuildToolVersion(bv); |
8328 | } |
8329 | } |
8330 | |
8331 | static void PrintSourceVersionCommand(MachO::source_version_command sd) { |
8332 | outs() << " cmd LC_SOURCE_VERSION\n"; |
8333 | outs() << " cmdsize " << sd.cmdsize; |
8334 | if (sd.cmdsize != sizeof(struct MachO::source_version_command)) |
8335 | outs() << " Incorrect size\n"; |
8336 | else |
8337 | outs() << "\n"; |
8338 | uint64_t a = (sd.version >> 40) & 0xffffff; |
8339 | uint64_t b = (sd.version >> 30) & 0x3ff; |
8340 | uint64_t c = (sd.version >> 20) & 0x3ff; |
8341 | uint64_t d = (sd.version >> 10) & 0x3ff; |
8342 | uint64_t e = sd.version & 0x3ff; |
8343 | outs() << " version " << a << "." << b; |
8344 | if (e != 0) |
8345 | outs() << "." << c << "." << d << "." << e; |
8346 | else if (d != 0) |
8347 | outs() << "." << c << "." << d; |
8348 | else if (c != 0) |
8349 | outs() << "." << c; |
8350 | outs() << "\n"; |
8351 | } |
8352 | |
8353 | static void PrintEntryPointCommand(MachO::entry_point_command ep) { |
8354 | outs() << " cmd LC_MAIN\n"; |
8355 | outs() << " cmdsize " << ep.cmdsize; |
8356 | if (ep.cmdsize != sizeof(struct MachO::entry_point_command)) |
8357 | outs() << " Incorrect size\n"; |
8358 | else |
8359 | outs() << "\n"; |
8360 | outs() << " entryoff " << ep.entryoff << "\n"; |
8361 | outs() << " stacksize " << ep.stacksize << "\n"; |
8362 | } |
8363 | |
8364 | static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec, |
8365 | uint32_t object_size) { |
8366 | outs() << " cmd LC_ENCRYPTION_INFO\n"; |
8367 | outs() << " cmdsize " << ec.cmdsize; |
8368 | if (ec.cmdsize != sizeof(struct MachO::encryption_info_command)) |
8369 | outs() << " Incorrect size\n"; |
8370 | else |
8371 | outs() << "\n"; |
8372 | outs() << " cryptoff " << ec.cryptoff; |
8373 | if (ec.cryptoff > object_size) |
8374 | outs() << " (past end of file)\n"; |
8375 | else |
8376 | outs() << "\n"; |
8377 | outs() << " cryptsize " << ec.cryptsize; |
8378 | if (ec.cryptsize > object_size) |
8379 | outs() << " (past end of file)\n"; |
8380 | else |
8381 | outs() << "\n"; |
8382 | outs() << " cryptid " << ec.cryptid << "\n"; |
8383 | } |
8384 | |
8385 | static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec, |
8386 | uint32_t object_size) { |
8387 | outs() << " cmd LC_ENCRYPTION_INFO_64\n"; |
8388 | outs() << " cmdsize " << ec.cmdsize; |
8389 | if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64)) |
8390 | outs() << " Incorrect size\n"; |
8391 | else |
8392 | outs() << "\n"; |
8393 | outs() << " cryptoff " << ec.cryptoff; |
8394 | if (ec.cryptoff > object_size) |
8395 | outs() << " (past end of file)\n"; |
8396 | else |
8397 | outs() << "\n"; |
8398 | outs() << " cryptsize " << ec.cryptsize; |
8399 | if (ec.cryptsize > object_size) |
8400 | outs() << " (past end of file)\n"; |
8401 | else |
8402 | outs() << "\n"; |
8403 | outs() << " cryptid " << ec.cryptid << "\n"; |
8404 | outs() << " pad " << ec.pad << "\n"; |
8405 | } |
8406 | |
8407 | static void PrintLinkerOptionCommand(MachO::linker_option_command lo, |
8408 | const char *Ptr) { |
8409 | outs() << " cmd LC_LINKER_OPTION\n"; |
8410 | outs() << " cmdsize " << lo.cmdsize; |
8411 | if (lo.cmdsize < sizeof(struct MachO::linker_option_command)) |
8412 | outs() << " Incorrect size\n"; |
8413 | else |
8414 | outs() << "\n"; |
8415 | outs() << " count " << lo.count << "\n"; |
8416 | const char *string = Ptr + sizeof(struct MachO::linker_option_command); |
8417 | uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command); |
8418 | uint32_t i = 0; |
8419 | while (left > 0) { |
8420 | while (*string == '\0' && left > 0) { |
8421 | string++; |
8422 | left--; |
8423 | } |
8424 | if (left > 0) { |
8425 | i++; |
8426 | outs() << " string #" << i << " " << format("%.*s\n", left, string); |
8427 | uint32_t NullPos = StringRef(string, left).find('\0'); |
8428 | uint32_t len = std::min(NullPos, left) + 1; |
8429 | string += len; |
8430 | left -= len; |
8431 | } |
8432 | } |
8433 | if (lo.count != i) |
8434 | outs() << " count " << lo.count << " does not match number of strings " |
8435 | << i << "\n"; |
8436 | } |
8437 | |
8438 | static void PrintSubFrameworkCommand(MachO::sub_framework_command sub, |
8439 | const char *Ptr) { |
8440 | outs() << " cmd LC_SUB_FRAMEWORK\n"; |
8441 | outs() << " cmdsize " << sub.cmdsize; |
8442 | if (sub.cmdsize < sizeof(struct MachO::sub_framework_command)) |
8443 | outs() << " Incorrect size\n"; |
8444 | else |
8445 | outs() << "\n"; |
8446 | if (sub.umbrella < sub.cmdsize) { |
8447 | const char *P = Ptr + sub.umbrella; |
8448 | outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n"; |
8449 | } else { |
8450 | outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n"; |
8451 | } |
8452 | } |
8453 | |
8454 | static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub, |
8455 | const char *Ptr) { |
8456 | outs() << " cmd LC_SUB_UMBRELLA\n"; |
8457 | outs() << " cmdsize " << sub.cmdsize; |
8458 | if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command)) |
8459 | outs() << " Incorrect size\n"; |
8460 | else |
8461 | outs() << "\n"; |
8462 | if (sub.sub_umbrella < sub.cmdsize) { |
8463 | const char *P = Ptr + sub.sub_umbrella; |
8464 | outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n"; |
8465 | } else { |
8466 | outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n"; |
8467 | } |
8468 | } |
8469 | |
8470 | static void PrintSubLibraryCommand(MachO::sub_library_command sub, |
8471 | const char *Ptr) { |
8472 | outs() << " cmd LC_SUB_LIBRARY\n"; |
8473 | outs() << " cmdsize " << sub.cmdsize; |
8474 | if (sub.cmdsize < sizeof(struct MachO::sub_library_command)) |
8475 | outs() << " Incorrect size\n"; |
8476 | else |
8477 | outs() << "\n"; |
8478 | if (sub.sub_library < sub.cmdsize) { |
8479 | const char *P = Ptr + sub.sub_library; |
8480 | outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n"; |
8481 | } else { |
8482 | outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n"; |
8483 | } |
8484 | } |
8485 | |
8486 | static void PrintSubClientCommand(MachO::sub_client_command sub, |
8487 | const char *Ptr) { |
8488 | outs() << " cmd LC_SUB_CLIENT\n"; |
8489 | outs() << " cmdsize " << sub.cmdsize; |
8490 | if (sub.cmdsize < sizeof(struct MachO::sub_client_command)) |
8491 | outs() << " Incorrect size\n"; |
8492 | else |
8493 | outs() << "\n"; |
8494 | if (sub.client < sub.cmdsize) { |
8495 | const char *P = Ptr + sub.client; |
8496 | outs() << " client " << P << " (offset " << sub.client << ")\n"; |
8497 | } else { |
8498 | outs() << " client ?(bad offset " << sub.client << ")\n"; |
8499 | } |
8500 | } |
8501 | |
8502 | static void PrintRoutinesCommand(MachO::routines_command r) { |
8503 | outs() << " cmd LC_ROUTINES\n"; |
8504 | outs() << " cmdsize " << r.cmdsize; |
8505 | if (r.cmdsize != sizeof(struct MachO::routines_command)) |
8506 | outs() << " Incorrect size\n"; |
8507 | else |
8508 | outs() << "\n"; |
8509 | outs() << " init_address " << format("0x%08" PRIx32"x", r.init_address) << "\n"; |
8510 | outs() << " init_module " << r.init_module << "\n"; |
8511 | outs() << " reserved1 " << r.reserved1 << "\n"; |
8512 | outs() << " reserved2 " << r.reserved2 << "\n"; |
8513 | outs() << " reserved3 " << r.reserved3 << "\n"; |
8514 | outs() << " reserved4 " << r.reserved4 << "\n"; |
8515 | outs() << " reserved5 " << r.reserved5 << "\n"; |
8516 | outs() << " reserved6 " << r.reserved6 << "\n"; |
8517 | } |
8518 | |
8519 | static void PrintRoutinesCommand64(MachO::routines_command_64 r) { |
8520 | outs() << " cmd LC_ROUTINES_64\n"; |
8521 | outs() << " cmdsize " << r.cmdsize; |
8522 | if (r.cmdsize != sizeof(struct MachO::routines_command_64)) |
8523 | outs() << " Incorrect size\n"; |
8524 | else |
8525 | outs() << "\n"; |
8526 | outs() << " init_address " << format("0x%016" PRIx64"l" "x", r.init_address) << "\n"; |
8527 | outs() << " init_module " << r.init_module << "\n"; |
8528 | outs() << " reserved1 " << r.reserved1 << "\n"; |
8529 | outs() << " reserved2 " << r.reserved2 << "\n"; |
8530 | outs() << " reserved3 " << r.reserved3 << "\n"; |
8531 | outs() << " reserved4 " << r.reserved4 << "\n"; |
8532 | outs() << " reserved5 " << r.reserved5 << "\n"; |
8533 | outs() << " reserved6 " << r.reserved6 << "\n"; |
8534 | } |
8535 | |
8536 | static void Print_x86_thread_state32_t(MachO::x86_thread_state32_t &cpu32) { |
8537 | outs() << "\t eax " << format("0x%08" PRIx32"x", cpu32.eax); |
8538 | outs() << " ebx " << format("0x%08" PRIx32"x", cpu32.ebx); |
8539 | outs() << " ecx " << format("0x%08" PRIx32"x", cpu32.ecx); |
8540 | outs() << " edx " << format("0x%08" PRIx32"x", cpu32.edx) << "\n"; |
8541 | outs() << "\t edi " << format("0x%08" PRIx32"x", cpu32.edi); |
8542 | outs() << " esi " << format("0x%08" PRIx32"x", cpu32.esi); |
8543 | outs() << " ebp " << format("0x%08" PRIx32"x", cpu32.ebp); |
8544 | outs() << " esp " << format("0x%08" PRIx32"x", cpu32.esp) << "\n"; |
8545 | outs() << "\t ss " << format("0x%08" PRIx32"x", cpu32.ss); |
8546 | outs() << " eflags " << format("0x%08" PRIx32"x", cpu32.eflags); |
8547 | outs() << " eip " << format("0x%08" PRIx32"x", cpu32.eip); |
8548 | outs() << " cs " << format("0x%08" PRIx32"x", cpu32.cs) << "\n"; |
8549 | outs() << "\t ds " << format("0x%08" PRIx32"x", cpu32.ds); |
8550 | outs() << " es " << format("0x%08" PRIx32"x", cpu32.es); |
8551 | outs() << " fs " << format("0x%08" PRIx32"x", cpu32.fs); |
8552 | outs() << " gs " << format("0x%08" PRIx32"x", cpu32.gs) << "\n"; |
8553 | } |
8554 | |
8555 | static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) { |
8556 | outs() << " rax " << format("0x%016" PRIx64"l" "x", cpu64.rax); |
8557 | outs() << " rbx " << format("0x%016" PRIx64"l" "x", cpu64.rbx); |
8558 | outs() << " rcx " << format("0x%016" PRIx64"l" "x", cpu64.rcx) << "\n"; |
8559 | outs() << " rdx " << format("0x%016" PRIx64"l" "x", cpu64.rdx); |
8560 | outs() << " rdi " << format("0x%016" PRIx64"l" "x", cpu64.rdi); |
8561 | outs() << " rsi " << format("0x%016" PRIx64"l" "x", cpu64.rsi) << "\n"; |
8562 | outs() << " rbp " << format("0x%016" PRIx64"l" "x", cpu64.rbp); |
8563 | outs() << " rsp " << format("0x%016" PRIx64"l" "x", cpu64.rsp); |
8564 | outs() << " r8 " << format("0x%016" PRIx64"l" "x", cpu64.r8) << "\n"; |
8565 | outs() << " r9 " << format("0x%016" PRIx64"l" "x", cpu64.r9); |
8566 | outs() << " r10 " << format("0x%016" PRIx64"l" "x", cpu64.r10); |
8567 | outs() << " r11 " << format("0x%016" PRIx64"l" "x", cpu64.r11) << "\n"; |
8568 | outs() << " r12 " << format("0x%016" PRIx64"l" "x", cpu64.r12); |
8569 | outs() << " r13 " << format("0x%016" PRIx64"l" "x", cpu64.r13); |
8570 | outs() << " r14 " << format("0x%016" PRIx64"l" "x", cpu64.r14) << "\n"; |
8571 | outs() << " r15 " << format("0x%016" PRIx64"l" "x", cpu64.r15); |
8572 | outs() << " rip " << format("0x%016" PRIx64"l" "x", cpu64.rip) << "\n"; |
8573 | outs() << "rflags " << format("0x%016" PRIx64"l" "x", cpu64.rflags); |
8574 | outs() << " cs " << format("0x%016" PRIx64"l" "x", cpu64.cs); |
8575 | outs() << " fs " << format("0x%016" PRIx64"l" "x", cpu64.fs) << "\n"; |
8576 | outs() << " gs " << format("0x%016" PRIx64"l" "x", cpu64.gs) << "\n"; |
8577 | } |
8578 | |
8579 | static void Print_mmst_reg(MachO::mmst_reg_t &r) { |
8580 | uint32_t f; |
8581 | outs() << "\t mmst_reg "; |
8582 | for (f = 0; f < 10; f++) |
8583 | outs() << format("%02" PRIx32"x", (r.mmst_reg[f] & 0xff)) << " "; |
8584 | outs() << "\n"; |
8585 | outs() << "\t mmst_rsrv "; |
8586 | for (f = 0; f < 6; f++) |
8587 | outs() << format("%02" PRIx32"x", (r.mmst_rsrv[f] & 0xff)) << " "; |
8588 | outs() << "\n"; |
8589 | } |
8590 | |
8591 | static void Print_xmm_reg(MachO::xmm_reg_t &r) { |
8592 | uint32_t f; |
8593 | outs() << "\t xmm_reg "; |
8594 | for (f = 0; f < 16; f++) |
8595 | outs() << format("%02" PRIx32"x", (r.xmm_reg[f] & 0xff)) << " "; |
8596 | outs() << "\n"; |
8597 | } |
8598 | |
8599 | static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) { |
8600 | outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0]; |
8601 | outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n"; |
8602 | outs() << "\t control: invalid " << fpu.fpu_fcw.invalid; |
8603 | outs() << " denorm " << fpu.fpu_fcw.denorm; |
8604 | outs() << " zdiv " << fpu.fpu_fcw.zdiv; |
8605 | outs() << " ovrfl " << fpu.fpu_fcw.ovrfl; |
8606 | outs() << " undfl " << fpu.fpu_fcw.undfl; |
8607 | outs() << " precis " << fpu.fpu_fcw.precis << "\n"; |
8608 | outs() << "\t\t pc "; |
8609 | if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B) |
8610 | outs() << "FP_PREC_24B "; |
8611 | else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B) |
8612 | outs() << "FP_PREC_53B "; |
8613 | else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B) |
8614 | outs() << "FP_PREC_64B "; |
8615 | else |
8616 | outs() << fpu.fpu_fcw.pc << " "; |
8617 | outs() << "rc "; |
8618 | if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR) |
8619 | outs() << "FP_RND_NEAR "; |
8620 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN) |
8621 | outs() << "FP_RND_DOWN "; |
8622 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP) |
8623 | outs() << "FP_RND_UP "; |
8624 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP) |
8625 | outs() << "FP_CHOP "; |
8626 | outs() << "\n"; |
8627 | outs() << "\t status: invalid " << fpu.fpu_fsw.invalid; |
8628 | outs() << " denorm " << fpu.fpu_fsw.denorm; |
8629 | outs() << " zdiv " << fpu.fpu_fsw.zdiv; |
8630 | outs() << " ovrfl " << fpu.fpu_fsw.ovrfl; |
8631 | outs() << " undfl " << fpu.fpu_fsw.undfl; |
8632 | outs() << " precis " << fpu.fpu_fsw.precis; |
8633 | outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n"; |
8634 | outs() << "\t errsumm " << fpu.fpu_fsw.errsumm; |
8635 | outs() << " c0 " << fpu.fpu_fsw.c0; |
8636 | outs() << " c1 " << fpu.fpu_fsw.c1; |
8637 | outs() << " c2 " << fpu.fpu_fsw.c2; |
8638 | outs() << " tos " << fpu.fpu_fsw.tos; |
8639 | outs() << " c3 " << fpu.fpu_fsw.c3; |
8640 | outs() << " busy " << fpu.fpu_fsw.busy << "\n"; |
8641 | outs() << "\t fpu_ftw " << format("0x%02" PRIx32"x", fpu.fpu_ftw); |
8642 | outs() << " fpu_rsrv1 " << format("0x%02" PRIx32"x", fpu.fpu_rsrv1); |
8643 | outs() << " fpu_fop " << format("0x%04" PRIx32"x", fpu.fpu_fop); |
8644 | outs() << " fpu_ip " << format("0x%08" PRIx32"x", fpu.fpu_ip) << "\n"; |
8645 | outs() << "\t fpu_cs " << format("0x%04" PRIx32"x", fpu.fpu_cs); |
8646 | outs() << " fpu_rsrv2 " << format("0x%04" PRIx32"x", fpu.fpu_rsrv2); |
8647 | outs() << " fpu_dp " << format("0x%08" PRIx32"x", fpu.fpu_dp); |
8648 | outs() << " fpu_ds " << format("0x%04" PRIx32"x", fpu.fpu_ds) << "\n"; |
8649 | outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32"x", fpu.fpu_rsrv3); |
8650 | outs() << " fpu_mxcsr " << format("0x%08" PRIx32"x", fpu.fpu_mxcsr); |
8651 | outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32"x", fpu.fpu_mxcsrmask); |
8652 | outs() << "\n"; |
8653 | outs() << "\t fpu_stmm0:\n"; |
8654 | Print_mmst_reg(fpu.fpu_stmm0); |
8655 | outs() << "\t fpu_stmm1:\n"; |
8656 | Print_mmst_reg(fpu.fpu_stmm1); |
8657 | outs() << "\t fpu_stmm2:\n"; |
8658 | Print_mmst_reg(fpu.fpu_stmm2); |
8659 | outs() << "\t fpu_stmm3:\n"; |
8660 | Print_mmst_reg(fpu.fpu_stmm3); |
8661 | outs() << "\t fpu_stmm4:\n"; |
8662 | Print_mmst_reg(fpu.fpu_stmm4); |
8663 | outs() << "\t fpu_stmm5:\n"; |
8664 | Print_mmst_reg(fpu.fpu_stmm5); |
8665 | outs() << "\t fpu_stmm6:\n"; |
8666 | Print_mmst_reg(fpu.fpu_stmm6); |
8667 | outs() << "\t fpu_stmm7:\n"; |
8668 | Print_mmst_reg(fpu.fpu_stmm7); |
8669 | outs() << "\t fpu_xmm0:\n"; |
8670 | Print_xmm_reg(fpu.fpu_xmm0); |
8671 | outs() << "\t fpu_xmm1:\n"; |
8672 | Print_xmm_reg(fpu.fpu_xmm1); |
8673 | outs() << "\t fpu_xmm2:\n"; |
8674 | Print_xmm_reg(fpu.fpu_xmm2); |
8675 | outs() << "\t fpu_xmm3:\n"; |
8676 | Print_xmm_reg(fpu.fpu_xmm3); |
8677 | outs() << "\t fpu_xmm4:\n"; |
8678 | Print_xmm_reg(fpu.fpu_xmm4); |
8679 | outs() << "\t fpu_xmm5:\n"; |
8680 | Print_xmm_reg(fpu.fpu_xmm5); |
8681 | outs() << "\t fpu_xmm6:\n"; |
8682 | Print_xmm_reg(fpu.fpu_xmm6); |
8683 | outs() << "\t fpu_xmm7:\n"; |
8684 | Print_xmm_reg(fpu.fpu_xmm7); |
8685 | outs() << "\t fpu_xmm8:\n"; |
8686 | Print_xmm_reg(fpu.fpu_xmm8); |
8687 | outs() << "\t fpu_xmm9:\n"; |
8688 | Print_xmm_reg(fpu.fpu_xmm9); |
8689 | outs() << "\t fpu_xmm10:\n"; |
8690 | Print_xmm_reg(fpu.fpu_xmm10); |
8691 | outs() << "\t fpu_xmm11:\n"; |
8692 | Print_xmm_reg(fpu.fpu_xmm11); |
8693 | outs() << "\t fpu_xmm12:\n"; |
8694 | Print_xmm_reg(fpu.fpu_xmm12); |
8695 | outs() << "\t fpu_xmm13:\n"; |
8696 | Print_xmm_reg(fpu.fpu_xmm13); |
8697 | outs() << "\t fpu_xmm14:\n"; |
8698 | Print_xmm_reg(fpu.fpu_xmm14); |
8699 | outs() << "\t fpu_xmm15:\n"; |
8700 | Print_xmm_reg(fpu.fpu_xmm15); |
8701 | outs() << "\t fpu_rsrv4:\n"; |
8702 | for (uint32_t f = 0; f < 6; f++) { |
8703 | outs() << "\t "; |
8704 | for (uint32_t g = 0; g < 16; g++) |
8705 | outs() << format("%02" PRIx32"x", fpu.fpu_rsrv4[f * g]) << " "; |
8706 | outs() << "\n"; |
8707 | } |
8708 | outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32"x", fpu.fpu_reserved1); |
8709 | outs() << "\n"; |
8710 | } |
8711 | |
8712 | static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) { |
8713 | outs() << "\t trapno " << format("0x%08" PRIx32"x", exc64.trapno); |
8714 | outs() << " err " << format("0x%08" PRIx32"x", exc64.err); |
8715 | outs() << " faultvaddr " << format("0x%016" PRIx64"l" "x", exc64.faultvaddr) << "\n"; |
8716 | } |
8717 | |
8718 | static void Print_arm_thread_state32_t(MachO::arm_thread_state32_t &cpu32) { |
8719 | outs() << "\t r0 " << format("0x%08" PRIx32"x", cpu32.r[0]); |
8720 | outs() << " r1 " << format("0x%08" PRIx32"x", cpu32.r[1]); |
8721 | outs() << " r2 " << format("0x%08" PRIx32"x", cpu32.r[2]); |
8722 | outs() << " r3 " << format("0x%08" PRIx32"x", cpu32.r[3]) << "\n"; |
8723 | outs() << "\t r4 " << format("0x%08" PRIx32"x", cpu32.r[4]); |
8724 | outs() << " r5 " << format("0x%08" PRIx32"x", cpu32.r[5]); |
8725 | outs() << " r6 " << format("0x%08" PRIx32"x", cpu32.r[6]); |
8726 | outs() << " r7 " << format("0x%08" PRIx32"x", cpu32.r[7]) << "\n"; |
8727 | outs() << "\t r8 " << format("0x%08" PRIx32"x", cpu32.r[8]); |
8728 | outs() << " r9 " << format("0x%08" PRIx32"x", cpu32.r[9]); |
8729 | outs() << " r10 " << format("0x%08" PRIx32"x", cpu32.r[10]); |
8730 | outs() << " r11 " << format("0x%08" PRIx32"x", cpu32.r[11]) << "\n"; |
8731 | outs() << "\t r12 " << format("0x%08" PRIx32"x", cpu32.r[12]); |
8732 | outs() << " sp " << format("0x%08" PRIx32"x", cpu32.sp); |
8733 | outs() << " lr " << format("0x%08" PRIx32"x", cpu32.lr); |
8734 | outs() << " pc " << format("0x%08" PRIx32"x", cpu32.pc) << "\n"; |
8735 | outs() << "\t cpsr " << format("0x%08" PRIx32"x", cpu32.cpsr) << "\n"; |
8736 | } |
8737 | |
8738 | static void Print_arm_thread_state64_t(MachO::arm_thread_state64_t &cpu64) { |
8739 | outs() << "\t x0 " << format("0x%016" PRIx64"l" "x", cpu64.x[0]); |
8740 | outs() << " x1 " << format("0x%016" PRIx64"l" "x", cpu64.x[1]); |
8741 | outs() << " x2 " << format("0x%016" PRIx64"l" "x", cpu64.x[2]) << "\n"; |
8742 | outs() << "\t x3 " << format("0x%016" PRIx64"l" "x", cpu64.x[3]); |
8743 | outs() << " x4 " << format("0x%016" PRIx64"l" "x", cpu64.x[4]); |
8744 | outs() << " x5 " << format("0x%016" PRIx64"l" "x", cpu64.x[5]) << "\n"; |
8745 | outs() << "\t x6 " << format("0x%016" PRIx64"l" "x", cpu64.x[6]); |
8746 | outs() << " x7 " << format("0x%016" PRIx64"l" "x", cpu64.x[7]); |
8747 | outs() << " x8 " << format("0x%016" PRIx64"l" "x", cpu64.x[8]) << "\n"; |
8748 | outs() << "\t x9 " << format("0x%016" PRIx64"l" "x", cpu64.x[9]); |
8749 | outs() << " x10 " << format("0x%016" PRIx64"l" "x", cpu64.x[10]); |
8750 | outs() << " x11 " << format("0x%016" PRIx64"l" "x", cpu64.x[11]) << "\n"; |
8751 | outs() << "\t x12 " << format("0x%016" PRIx64"l" "x", cpu64.x[12]); |
8752 | outs() << " x13 " << format("0x%016" PRIx64"l" "x", cpu64.x[13]); |
8753 | outs() << " x14 " << format("0x%016" PRIx64"l" "x", cpu64.x[14]) << "\n"; |
8754 | outs() << "\t x15 " << format("0x%016" PRIx64"l" "x", cpu64.x[15]); |
8755 | outs() << " x16 " << format("0x%016" PRIx64"l" "x", cpu64.x[16]); |
8756 | outs() << " x17 " << format("0x%016" PRIx64"l" "x", cpu64.x[17]) << "\n"; |
8757 | outs() << "\t x18 " << format("0x%016" PRIx64"l" "x", cpu64.x[18]); |
8758 | outs() << " x19 " << format("0x%016" PRIx64"l" "x", cpu64.x[19]); |
8759 | outs() << " x20 " << format("0x%016" PRIx64"l" "x", cpu64.x[20]) << "\n"; |
8760 | outs() << "\t x21 " << format("0x%016" PRIx64"l" "x", cpu64.x[21]); |
8761 | outs() << " x22 " << format("0x%016" PRIx64"l" "x", cpu64.x[22]); |
8762 | outs() << " x23 " << format("0x%016" PRIx64"l" "x", cpu64.x[23]) << "\n"; |
8763 | outs() << "\t x24 " << format("0x%016" PRIx64"l" "x", cpu64.x[24]); |
8764 | outs() << " x25 " << format("0x%016" PRIx64"l" "x", cpu64.x[25]); |
8765 | outs() << " x26 " << format("0x%016" PRIx64"l" "x", cpu64.x[26]) << "\n"; |
8766 | outs() << "\t x27 " << format("0x%016" PRIx64"l" "x", cpu64.x[27]); |
8767 | outs() << " x28 " << format("0x%016" PRIx64"l" "x", cpu64.x[28]); |
8768 | outs() << " fp " << format("0x%016" PRIx64"l" "x", cpu64.fp) << "\n"; |
8769 | outs() << "\t lr " << format("0x%016" PRIx64"l" "x", cpu64.lr); |
8770 | outs() << " sp " << format("0x%016" PRIx64"l" "x", cpu64.sp); |
8771 | outs() << " pc " << format("0x%016" PRIx64"l" "x", cpu64.pc) << "\n"; |
8772 | outs() << "\t cpsr " << format("0x%08" PRIx32"x", cpu64.cpsr) << "\n"; |
8773 | } |
8774 | |
8775 | static void PrintThreadCommand(MachO::thread_command t, const char *Ptr, |
8776 | bool isLittleEndian, uint32_t cputype) { |
8777 | if (t.cmd == MachO::LC_THREAD) |
8778 | outs() << " cmd LC_THREAD\n"; |
8779 | else if (t.cmd == MachO::LC_UNIXTHREAD) |
8780 | outs() << " cmd LC_UNIXTHREAD\n"; |
8781 | else |
8782 | outs() << " cmd " << t.cmd << " (unknown)\n"; |
8783 | outs() << " cmdsize " << t.cmdsize; |
8784 | if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t)) |
8785 | outs() << " Incorrect size\n"; |
8786 | else |
8787 | outs() << "\n"; |
8788 | |
8789 | const char *begin = Ptr + sizeof(struct MachO::thread_command); |
8790 | const char *end = Ptr + t.cmdsize; |
8791 | uint32_t flavor, count, left; |
8792 | if (cputype == MachO::CPU_TYPE_I386) { |
8793 | while (begin < end) { |
8794 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
8795 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
8796 | begin += sizeof(uint32_t); |
8797 | } else { |
8798 | flavor = 0; |
8799 | begin = end; |
8800 | } |
8801 | if (isLittleEndian != sys::IsLittleEndianHost) |
8802 | sys::swapByteOrder(flavor); |
8803 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
8804 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
8805 | begin += sizeof(uint32_t); |
8806 | } else { |
8807 | count = 0; |
8808 | begin = end; |
8809 | } |
8810 | if (isLittleEndian != sys::IsLittleEndianHost) |
8811 | sys::swapByteOrder(count); |
8812 | if (flavor == MachO::x86_THREAD_STATE32) { |
8813 | outs() << " flavor i386_THREAD_STATE\n"; |
8814 | if (count == MachO::x86_THREAD_STATE32_COUNT) |
8815 | outs() << " count i386_THREAD_STATE_COUNT\n"; |
8816 | else |
8817 | outs() << " count " << count |
8818 | << " (not x86_THREAD_STATE32_COUNT)\n"; |
8819 | MachO::x86_thread_state32_t cpu32; |
8820 | left = end - begin; |
8821 | if (left >= sizeof(MachO::x86_thread_state32_t)) { |
8822 | memcpy(&cpu32, begin, sizeof(MachO::x86_thread_state32_t)); |
8823 | begin += sizeof(MachO::x86_thread_state32_t); |
8824 | } else { |
8825 | memset(&cpu32, '\0', sizeof(MachO::x86_thread_state32_t)); |
8826 | memcpy(&cpu32, begin, left); |
8827 | begin += left; |
8828 | } |
8829 | if (isLittleEndian != sys::IsLittleEndianHost) |
8830 | swapStruct(cpu32); |
8831 | Print_x86_thread_state32_t(cpu32); |
8832 | } else if (flavor == MachO::x86_THREAD_STATE) { |
8833 | outs() << " flavor x86_THREAD_STATE\n"; |
8834 | if (count == MachO::x86_THREAD_STATE_COUNT) |
8835 | outs() << " count x86_THREAD_STATE_COUNT\n"; |
8836 | else |
8837 | outs() << " count " << count |
8838 | << " (not x86_THREAD_STATE_COUNT)\n"; |
8839 | struct MachO::x86_thread_state_t ts; |
8840 | left = end - begin; |
8841 | if (left >= sizeof(MachO::x86_thread_state_t)) { |
8842 | memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); |
8843 | begin += sizeof(MachO::x86_thread_state_t); |
8844 | } else { |
8845 | memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); |
8846 | memcpy(&ts, begin, left); |
8847 | begin += left; |
8848 | } |
8849 | if (isLittleEndian != sys::IsLittleEndianHost) |
8850 | swapStruct(ts); |
8851 | if (ts.tsh.flavor == MachO::x86_THREAD_STATE32) { |
8852 | outs() << "\t tsh.flavor x86_THREAD_STATE32 "; |
8853 | if (ts.tsh.count == MachO::x86_THREAD_STATE32_COUNT) |
8854 | outs() << "tsh.count x86_THREAD_STATE32_COUNT\n"; |
8855 | else |
8856 | outs() << "tsh.count " << ts.tsh.count |
8857 | << " (not x86_THREAD_STATE32_COUNT\n"; |
8858 | Print_x86_thread_state32_t(ts.uts.ts32); |
8859 | } else { |
8860 | outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " |
8861 | << ts.tsh.count << "\n"; |
8862 | } |
8863 | } else { |
8864 | outs() << " flavor " << flavor << " (unknown)\n"; |
8865 | outs() << " count " << count << "\n"; |
8866 | outs() << " state (unknown)\n"; |
8867 | begin += count * sizeof(uint32_t); |
8868 | } |
8869 | } |
8870 | } else if (cputype == MachO::CPU_TYPE_X86_64) { |
8871 | while (begin < end) { |
8872 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
8873 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
8874 | begin += sizeof(uint32_t); |
8875 | } else { |
8876 | flavor = 0; |
8877 | begin = end; |
8878 | } |
8879 | if (isLittleEndian != sys::IsLittleEndianHost) |
8880 | sys::swapByteOrder(flavor); |
8881 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
8882 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
8883 | begin += sizeof(uint32_t); |
8884 | } else { |
8885 | count = 0; |
8886 | begin = end; |
8887 | } |
8888 | if (isLittleEndian != sys::IsLittleEndianHost) |
8889 | sys::swapByteOrder(count); |
8890 | if (flavor == MachO::x86_THREAD_STATE64) { |
8891 | outs() << " flavor x86_THREAD_STATE64\n"; |
8892 | if (count == MachO::x86_THREAD_STATE64_COUNT) |
8893 | outs() << " count x86_THREAD_STATE64_COUNT\n"; |
8894 | else |
8895 | outs() << " count " << count |
8896 | << " (not x86_THREAD_STATE64_COUNT)\n"; |
8897 | MachO::x86_thread_state64_t cpu64; |
8898 | left = end - begin; |
8899 | if (left >= sizeof(MachO::x86_thread_state64_t)) { |
8900 | memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t)); |
8901 | begin += sizeof(MachO::x86_thread_state64_t); |
8902 | } else { |
8903 | memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t)); |
8904 | memcpy(&cpu64, begin, left); |
8905 | begin += left; |
8906 | } |
8907 | if (isLittleEndian != sys::IsLittleEndianHost) |
8908 | swapStruct(cpu64); |
8909 | Print_x86_thread_state64_t(cpu64); |
8910 | } else if (flavor == MachO::x86_THREAD_STATE) { |
8911 | outs() << " flavor x86_THREAD_STATE\n"; |
8912 | if (count == MachO::x86_THREAD_STATE_COUNT) |
8913 | outs() << " count x86_THREAD_STATE_COUNT\n"; |
8914 | else |
8915 | outs() << " count " << count |
8916 | << " (not x86_THREAD_STATE_COUNT)\n"; |
8917 | struct MachO::x86_thread_state_t ts; |
8918 | left = end - begin; |
8919 | if (left >= sizeof(MachO::x86_thread_state_t)) { |
8920 | memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); |
8921 | begin += sizeof(MachO::x86_thread_state_t); |
8922 | } else { |
8923 | memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); |
8924 | memcpy(&ts, begin, left); |
8925 | begin += left; |
8926 | } |
8927 | if (isLittleEndian != sys::IsLittleEndianHost) |
8928 | swapStruct(ts); |
8929 | if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) { |
8930 | outs() << "\t tsh.flavor x86_THREAD_STATE64 "; |
8931 | if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT) |
8932 | outs() << "tsh.count x86_THREAD_STATE64_COUNT\n"; |
8933 | else |
8934 | outs() << "tsh.count " << ts.tsh.count |
8935 | << " (not x86_THREAD_STATE64_COUNT\n"; |
8936 | Print_x86_thread_state64_t(ts.uts.ts64); |
8937 | } else { |
8938 | outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " |
8939 | << ts.tsh.count << "\n"; |
8940 | } |
8941 | } else if (flavor == MachO::x86_FLOAT_STATE) { |
8942 | outs() << " flavor x86_FLOAT_STATE\n"; |
8943 | if (count == MachO::x86_FLOAT_STATE_COUNT) |
8944 | outs() << " count x86_FLOAT_STATE_COUNT\n"; |
8945 | else |
8946 | outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n"; |
8947 | struct MachO::x86_float_state_t fs; |
8948 | left = end - begin; |
8949 | if (left >= sizeof(MachO::x86_float_state_t)) { |
8950 | memcpy(&fs, begin, sizeof(MachO::x86_float_state_t)); |
8951 | begin += sizeof(MachO::x86_float_state_t); |
8952 | } else { |
8953 | memset(&fs, '\0', sizeof(MachO::x86_float_state_t)); |
8954 | memcpy(&fs, begin, left); |
8955 | begin += left; |
8956 | } |
8957 | if (isLittleEndian != sys::IsLittleEndianHost) |
8958 | swapStruct(fs); |
8959 | if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) { |
8960 | outs() << "\t fsh.flavor x86_FLOAT_STATE64 "; |
8961 | if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT) |
8962 | outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n"; |
8963 | else |
8964 | outs() << "fsh.count " << fs.fsh.count |
8965 | << " (not x86_FLOAT_STATE64_COUNT\n"; |
8966 | Print_x86_float_state_t(fs.ufs.fs64); |
8967 | } else { |
8968 | outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count " |
8969 | << fs.fsh.count << "\n"; |
8970 | } |
8971 | } else if (flavor == MachO::x86_EXCEPTION_STATE) { |
8972 | outs() << " flavor x86_EXCEPTION_STATE\n"; |
8973 | if (count == MachO::x86_EXCEPTION_STATE_COUNT) |
8974 | outs() << " count x86_EXCEPTION_STATE_COUNT\n"; |
8975 | else |
8976 | outs() << " count " << count |
8977 | << " (not x86_EXCEPTION_STATE_COUNT)\n"; |
8978 | struct MachO::x86_exception_state_t es; |
8979 | left = end - begin; |
8980 | if (left >= sizeof(MachO::x86_exception_state_t)) { |
8981 | memcpy(&es, begin, sizeof(MachO::x86_exception_state_t)); |
8982 | begin += sizeof(MachO::x86_exception_state_t); |
8983 | } else { |
8984 | memset(&es, '\0', sizeof(MachO::x86_exception_state_t)); |
8985 | memcpy(&es, begin, left); |
8986 | begin += left; |
8987 | } |
8988 | if (isLittleEndian != sys::IsLittleEndianHost) |
8989 | swapStruct(es); |
8990 | if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) { |
8991 | outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n"; |
8992 | if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT) |
8993 | outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n"; |
8994 | else |
8995 | outs() << "\t esh.count " << es.esh.count |
8996 | << " (not x86_EXCEPTION_STATE64_COUNT\n"; |
8997 | Print_x86_exception_state_t(es.ues.es64); |
8998 | } else { |
8999 | outs() << "\t esh.flavor " << es.esh.flavor << " esh.count " |
9000 | << es.esh.count << "\n"; |
9001 | } |
9002 | } else { |
9003 | outs() << " flavor " << flavor << " (unknown)\n"; |
9004 | outs() << " count " << count << "\n"; |
9005 | outs() << " state (unknown)\n"; |
9006 | begin += count * sizeof(uint32_t); |
9007 | } |
9008 | } |
9009 | } else if (cputype == MachO::CPU_TYPE_ARM) { |
9010 | while (begin < end) { |
9011 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9012 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9013 | begin += sizeof(uint32_t); |
9014 | } else { |
9015 | flavor = 0; |
9016 | begin = end; |
9017 | } |
9018 | if (isLittleEndian != sys::IsLittleEndianHost) |
9019 | sys::swapByteOrder(flavor); |
9020 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9021 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9022 | begin += sizeof(uint32_t); |
9023 | } else { |
9024 | count = 0; |
9025 | begin = end; |
9026 | } |
9027 | if (isLittleEndian != sys::IsLittleEndianHost) |
9028 | sys::swapByteOrder(count); |
9029 | if (flavor == MachO::ARM_THREAD_STATE) { |
9030 | outs() << " flavor ARM_THREAD_STATE\n"; |
9031 | if (count == MachO::ARM_THREAD_STATE_COUNT) |
9032 | outs() << " count ARM_THREAD_STATE_COUNT\n"; |
9033 | else |
9034 | outs() << " count " << count |
9035 | << " (not ARM_THREAD_STATE_COUNT)\n"; |
9036 | MachO::arm_thread_state32_t cpu32; |
9037 | left = end - begin; |
9038 | if (left >= sizeof(MachO::arm_thread_state32_t)) { |
9039 | memcpy(&cpu32, begin, sizeof(MachO::arm_thread_state32_t)); |
9040 | begin += sizeof(MachO::arm_thread_state32_t); |
9041 | } else { |
9042 | memset(&cpu32, '\0', sizeof(MachO::arm_thread_state32_t)); |
9043 | memcpy(&cpu32, begin, left); |
9044 | begin += left; |
9045 | } |
9046 | if (isLittleEndian != sys::IsLittleEndianHost) |
9047 | swapStruct(cpu32); |
9048 | Print_arm_thread_state32_t(cpu32); |
9049 | } else { |
9050 | outs() << " flavor " << flavor << " (unknown)\n"; |
9051 | outs() << " count " << count << "\n"; |
9052 | outs() << " state (unknown)\n"; |
9053 | begin += count * sizeof(uint32_t); |
9054 | } |
9055 | } |
9056 | } else if (cputype == MachO::CPU_TYPE_ARM64) { |
9057 | while (begin < end) { |
9058 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9059 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9060 | begin += sizeof(uint32_t); |
9061 | } else { |
9062 | flavor = 0; |
9063 | begin = end; |
9064 | } |
9065 | if (isLittleEndian != sys::IsLittleEndianHost) |
9066 | sys::swapByteOrder(flavor); |
9067 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9068 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9069 | begin += sizeof(uint32_t); |
9070 | } else { |
9071 | count = 0; |
9072 | begin = end; |
9073 | } |
9074 | if (isLittleEndian != sys::IsLittleEndianHost) |
9075 | sys::swapByteOrder(count); |
9076 | if (flavor == MachO::ARM_THREAD_STATE64) { |
9077 | outs() << " flavor ARM_THREAD_STATE64\n"; |
9078 | if (count == MachO::ARM_THREAD_STATE64_COUNT) |
9079 | outs() << " count ARM_THREAD_STATE64_COUNT\n"; |
9080 | else |
9081 | outs() << " count " << count |
9082 | << " (not ARM_THREAD_STATE64_COUNT)\n"; |
9083 | MachO::arm_thread_state64_t cpu64; |
9084 | left = end - begin; |
9085 | if (left >= sizeof(MachO::arm_thread_state64_t)) { |
9086 | memcpy(&cpu64, begin, sizeof(MachO::arm_thread_state64_t)); |
9087 | begin += sizeof(MachO::arm_thread_state64_t); |
9088 | } else { |
9089 | memset(&cpu64, '\0', sizeof(MachO::arm_thread_state64_t)); |
9090 | memcpy(&cpu64, begin, left); |
9091 | begin += left; |
9092 | } |
9093 | if (isLittleEndian != sys::IsLittleEndianHost) |
9094 | swapStruct(cpu64); |
9095 | Print_arm_thread_state64_t(cpu64); |
9096 | } else { |
9097 | outs() << " flavor " << flavor << " (unknown)\n"; |
9098 | outs() << " count " << count << "\n"; |
9099 | outs() << " state (unknown)\n"; |
9100 | begin += count * sizeof(uint32_t); |
9101 | } |
9102 | } |
9103 | } else { |
9104 | while (begin < end) { |
9105 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9106 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9107 | begin += sizeof(uint32_t); |
9108 | } else { |
9109 | flavor = 0; |
9110 | begin = end; |
9111 | } |
9112 | if (isLittleEndian != sys::IsLittleEndianHost) |
9113 | sys::swapByteOrder(flavor); |
9114 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9115 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9116 | begin += sizeof(uint32_t); |
9117 | } else { |
9118 | count = 0; |
9119 | begin = end; |
9120 | } |
9121 | if (isLittleEndian != sys::IsLittleEndianHost) |
9122 | sys::swapByteOrder(count); |
9123 | outs() << " flavor " << flavor << "\n"; |
9124 | outs() << " count " << count << "\n"; |
9125 | outs() << " state (Unknown cputype/cpusubtype)\n"; |
9126 | begin += count * sizeof(uint32_t); |
9127 | } |
9128 | } |
9129 | } |
9130 | |
9131 | static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) { |
9132 | if (dl.cmd == MachO::LC_ID_DYLIB) |
9133 | outs() << " cmd LC_ID_DYLIB\n"; |
9134 | else if (dl.cmd == MachO::LC_LOAD_DYLIB) |
9135 | outs() << " cmd LC_LOAD_DYLIB\n"; |
9136 | else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
9137 | outs() << " cmd LC_LOAD_WEAK_DYLIB\n"; |
9138 | else if (dl.cmd == MachO::LC_REEXPORT_DYLIB) |
9139 | outs() << " cmd LC_REEXPORT_DYLIB\n"; |
9140 | else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
9141 | outs() << " cmd LC_LAZY_LOAD_DYLIB\n"; |
9142 | else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
9143 | outs() << " cmd LC_LOAD_UPWARD_DYLIB\n"; |
9144 | else |
9145 | outs() << " cmd " << dl.cmd << " (unknown)\n"; |
9146 | outs() << " cmdsize " << dl.cmdsize; |
9147 | if (dl.cmdsize < sizeof(struct MachO::dylib_command)) |
9148 | outs() << " Incorrect size\n"; |
9149 | else |
9150 | outs() << "\n"; |
9151 | if (dl.dylib.name < dl.cmdsize) { |
9152 | const char *P = (const char *)(Ptr) + dl.dylib.name; |
9153 | outs() << " name " << P << " (offset " << dl.dylib.name << ")\n"; |
9154 | } else { |
9155 | outs() << " name ?(bad offset " << dl.dylib.name << ")\n"; |
9156 | } |
9157 | outs() << " time stamp " << dl.dylib.timestamp << " "; |
9158 | time_t t = dl.dylib.timestamp; |
9159 | outs() << ctime(&t); |
9160 | outs() << " current version "; |
9161 | if (dl.dylib.current_version == 0xffffffff) |
9162 | outs() << "n/a\n"; |
9163 | else |
9164 | outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "." |
9165 | << ((dl.dylib.current_version >> 8) & 0xff) << "." |
9166 | << (dl.dylib.current_version & 0xff) << "\n"; |
9167 | outs() << "compatibility version "; |
9168 | if (dl.dylib.compatibility_version == 0xffffffff) |
9169 | outs() << "n/a\n"; |
9170 | else |
9171 | outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." |
9172 | << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." |
9173 | << (dl.dylib.compatibility_version & 0xff) << "\n"; |
9174 | } |
9175 | |
9176 | static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld, |
9177 | uint32_t object_size) { |
9178 | if (ld.cmd == MachO::LC_CODE_SIGNATURE) |
9179 | outs() << " cmd LC_CODE_SIGNATURE\n"; |
9180 | else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO) |
9181 | outs() << " cmd LC_SEGMENT_SPLIT_INFO\n"; |
9182 | else if (ld.cmd == MachO::LC_FUNCTION_STARTS) |
9183 | outs() << " cmd LC_FUNCTION_STARTS\n"; |
9184 | else if (ld.cmd == MachO::LC_DATA_IN_CODE) |
9185 | outs() << " cmd LC_DATA_IN_CODE\n"; |
9186 | else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS) |
9187 | outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n"; |
9188 | else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) |
9189 | outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n"; |
9190 | else |
9191 | outs() << " cmd " << ld.cmd << " (?)\n"; |
9192 | outs() << " cmdsize " << ld.cmdsize; |
9193 | if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command)) |
9194 | outs() << " Incorrect size\n"; |
9195 | else |
9196 | outs() << "\n"; |
9197 | outs() << " dataoff " << ld.dataoff; |
9198 | if (ld.dataoff > object_size) |
9199 | outs() << " (past end of file)\n"; |
9200 | else |
9201 | outs() << "\n"; |
9202 | outs() << " datasize " << ld.datasize; |
9203 | uint64_t big_size = ld.dataoff; |
9204 | big_size += ld.datasize; |
9205 | if (big_size > object_size) |
9206 | outs() << " (past end of file)\n"; |
9207 | else |
9208 | outs() << "\n"; |
9209 | } |
9210 | |
9211 | static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype, |
9212 | uint32_t cputype, bool verbose) { |
9213 | StringRef Buf = Obj->getData(); |
9214 | unsigned Index = 0; |
9215 | for (const auto &Command : Obj->load_commands()) { |
9216 | outs() << "Load command " << Index++ << "\n"; |
9217 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
9218 | MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command); |
9219 | const char *sg_segname = SLC.segname; |
9220 | PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr, |
9221 | SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot, |
9222 | SLC.initprot, SLC.nsects, SLC.flags, Buf.size(), |
9223 | verbose); |
9224 | for (unsigned j = 0; j < SLC.nsects; j++) { |
9225 | MachO::section S = Obj->getSection(Command, j); |
9226 | PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align, |
9227 | S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2, |
9228 | SLC.cmd, sg_segname, filetype, Buf.size(), verbose); |
9229 | } |
9230 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
9231 | MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command); |
9232 | const char *sg_segname = SLC_64.segname; |
9233 | PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname, |
9234 | SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff, |
9235 | SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot, |
9236 | SLC_64.nsects, SLC_64.flags, Buf.size(), verbose); |
9237 | for (unsigned j = 0; j < SLC_64.nsects; j++) { |
9238 | MachO::section_64 S_64 = Obj->getSection64(Command, j); |
9239 | PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size, |
9240 | S_64.offset, S_64.align, S_64.reloff, S_64.nreloc, |
9241 | S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd, |
9242 | sg_segname, filetype, Buf.size(), verbose); |
9243 | } |
9244 | } else if (Command.C.cmd == MachO::LC_SYMTAB) { |
9245 | MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); |
9246 | PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size()); |
9247 | } else if (Command.C.cmd == MachO::LC_DYSYMTAB) { |
9248 | MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand(); |
9249 | MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); |
9250 | PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(), |
9251 | Obj->is64Bit()); |
9252 | } else if (Command.C.cmd == MachO::LC_DYLD_INFO || |
9253 | Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) { |
9254 | MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command); |
9255 | PrintDyldInfoLoadCommand(DyldInfo, Buf.size()); |
9256 | } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER || |
9257 | Command.C.cmd == MachO::LC_ID_DYLINKER || |
9258 | Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) { |
9259 | MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command); |
9260 | PrintDyldLoadCommand(Dyld, Command.Ptr); |
9261 | } else if (Command.C.cmd == MachO::LC_UUID) { |
9262 | MachO::uuid_command Uuid = Obj->getUuidCommand(Command); |
9263 | PrintUuidLoadCommand(Uuid); |
9264 | } else if (Command.C.cmd == MachO::LC_RPATH) { |
9265 | MachO::rpath_command Rpath = Obj->getRpathCommand(Command); |
9266 | PrintRpathLoadCommand(Rpath, Command.Ptr); |
9267 | } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX || |
9268 | Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS || |
9269 | Command.C.cmd == MachO::LC_VERSION_MIN_TVOS || |
9270 | Command.C.cmd == MachO::LC_VERSION_MIN_WATCHOS) { |
9271 | MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command); |
9272 | PrintVersionMinLoadCommand(Vd); |
9273 | } else if (Command.C.cmd == MachO::LC_NOTE) { |
9274 | MachO::note_command Nt = Obj->getNoteLoadCommand(Command); |
9275 | PrintNoteLoadCommand(Nt); |
9276 | } else if (Command.C.cmd == MachO::LC_BUILD_VERSION) { |
9277 | MachO::build_version_command Bv = |
9278 | Obj->getBuildVersionLoadCommand(Command); |
9279 | PrintBuildVersionLoadCommand(Obj, Bv); |
9280 | } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) { |
9281 | MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command); |
9282 | PrintSourceVersionCommand(Sd); |
9283 | } else if (Command.C.cmd == MachO::LC_MAIN) { |
9284 | MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command); |
9285 | PrintEntryPointCommand(Ep); |
9286 | } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) { |
9287 | MachO::encryption_info_command Ei = |
9288 | Obj->getEncryptionInfoCommand(Command); |
9289 | PrintEncryptionInfoCommand(Ei, Buf.size()); |
9290 | } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) { |
9291 | MachO::encryption_info_command_64 Ei = |
9292 | Obj->getEncryptionInfoCommand64(Command); |
9293 | PrintEncryptionInfoCommand64(Ei, Buf.size()); |
9294 | } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) { |
9295 | MachO::linker_option_command Lo = |
9296 | Obj->getLinkerOptionLoadCommand(Command); |
9297 | PrintLinkerOptionCommand(Lo, Command.Ptr); |
9298 | } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) { |
9299 | MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command); |
9300 | PrintSubFrameworkCommand(Sf, Command.Ptr); |
9301 | } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) { |
9302 | MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command); |
9303 | PrintSubUmbrellaCommand(Sf, Command.Ptr); |
9304 | } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) { |
9305 | MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command); |
9306 | PrintSubLibraryCommand(Sl, Command.Ptr); |
9307 | } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) { |
9308 | MachO::sub_client_command Sc = Obj->getSubClientCommand(Command); |
9309 | PrintSubClientCommand(Sc, Command.Ptr); |
9310 | } else if (Command.C.cmd == MachO::LC_ROUTINES) { |
9311 | MachO::routines_command Rc = Obj->getRoutinesCommand(Command); |
9312 | PrintRoutinesCommand(Rc); |
9313 | } else if (Command.C.cmd == MachO::LC_ROUTINES_64) { |
9314 | MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command); |
9315 | PrintRoutinesCommand64(Rc); |
9316 | } else if (Command.C.cmd == MachO::LC_THREAD || |
9317 | Command.C.cmd == MachO::LC_UNIXTHREAD) { |
9318 | MachO::thread_command Tc = Obj->getThreadCommand(Command); |
9319 | PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype); |
9320 | } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB || |
9321 | Command.C.cmd == MachO::LC_ID_DYLIB || |
9322 | Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || |
9323 | Command.C.cmd == MachO::LC_REEXPORT_DYLIB || |
9324 | Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || |
9325 | Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) { |
9326 | MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command); |
9327 | PrintDylibCommand(Dl, Command.Ptr); |
9328 | } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE || |
9329 | Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO || |
9330 | Command.C.cmd == MachO::LC_FUNCTION_STARTS || |
9331 | Command.C.cmd == MachO::LC_DATA_IN_CODE || |
9332 | Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS || |
9333 | Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) { |
9334 | MachO::linkedit_data_command Ld = |
9335 | Obj->getLinkeditDataLoadCommand(Command); |
9336 | PrintLinkEditDataCommand(Ld, Buf.size()); |
9337 | } else { |
9338 | outs() << " cmd ?(" << format("0x%08" PRIx32"x", Command.C.cmd) |
9339 | << ")\n"; |
9340 | outs() << " cmdsize " << Command.C.cmdsize << "\n"; |
9341 | // TODO: get and print the raw bytes of the load command. |
9342 | } |
9343 | // TODO: print all the other kinds of load commands. |
9344 | } |
9345 | } |
9346 | |
9347 | static void PrintMachHeader(const MachOObjectFile *Obj, bool verbose) { |
9348 | if (Obj->is64Bit()) { |
9349 | MachO::mach_header_64 H_64; |
9350 | H_64 = Obj->getHeader64(); |
9351 | PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype, |
9352 | H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose); |
9353 | } else { |
9354 | MachO::mach_header H; |
9355 | H = Obj->getHeader(); |
9356 | PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds, |
9357 | H.sizeofcmds, H.flags, verbose); |
9358 | } |
9359 | } |
9360 | |
9361 | void llvm::printMachOFileHeader(const object::ObjectFile *Obj) { |
9362 | const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj); |
9363 | PrintMachHeader(file, !NonVerbose); |
9364 | } |
9365 | |
9366 | void llvm::printMachOLoadCommands(const object::ObjectFile *Obj) { |
9367 | const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj); |
9368 | uint32_t filetype = 0; |
9369 | uint32_t cputype = 0; |
9370 | if (file->is64Bit()) { |
9371 | MachO::mach_header_64 H_64; |
9372 | H_64 = file->getHeader64(); |
9373 | filetype = H_64.filetype; |
9374 | cputype = H_64.cputype; |
9375 | } else { |
9376 | MachO::mach_header H; |
9377 | H = file->getHeader(); |
9378 | filetype = H.filetype; |
9379 | cputype = H.cputype; |
9380 | } |
9381 | PrintLoadCommands(file, filetype, cputype, !NonVerbose); |
9382 | } |
9383 | |
9384 | //===----------------------------------------------------------------------===// |
9385 | // export trie dumping |
9386 | //===----------------------------------------------------------------------===// |
9387 | |
9388 | void llvm::printMachOExportsTrie(const object::MachOObjectFile *Obj) { |
9389 | uint64_t BaseSegmentAddress = 0; |
9390 | for (const auto &Command : Obj->load_commands()) { |
9391 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
9392 | MachO::segment_command Seg = Obj->getSegmentLoadCommand(Command); |
9393 | if (Seg.fileoff == 0 && Seg.filesize != 0) { |
9394 | BaseSegmentAddress = Seg.vmaddr; |
9395 | break; |
9396 | } |
9397 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
9398 | MachO::segment_command_64 Seg = Obj->getSegment64LoadCommand(Command); |
9399 | if (Seg.fileoff == 0 && Seg.filesize != 0) { |
9400 | BaseSegmentAddress = Seg.vmaddr; |
9401 | break; |
9402 | } |
9403 | } |
9404 | } |
9405 | for (const llvm::object::ExportEntry &Entry : Obj->exports()) { |
9406 | uint64_t Flags = Entry.flags(); |
9407 | bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT); |
9408 | bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION); |
9409 | bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == |
9410 | MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL); |
9411 | bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == |
9412 | MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE); |
9413 | bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER); |
9414 | if (ReExport) |
9415 | outs() << "[re-export] "; |
9416 | else |
9417 | outs() << format("0x%08llX ", |
9418 | Entry.address() + BaseSegmentAddress); |
9419 | outs() << Entry.name(); |
9420 | if (WeakDef || ThreadLocal || Resolver || Abs) { |
9421 | bool NeedsComma = false; |
9422 | outs() << " ["; |
9423 | if (WeakDef) { |
9424 | outs() << "weak_def"; |
9425 | NeedsComma = true; |
9426 | } |
9427 | if (ThreadLocal) { |
9428 | if (NeedsComma) |
9429 | outs() << ", "; |
9430 | outs() << "per-thread"; |
9431 | NeedsComma = true; |
9432 | } |
9433 | if (Abs) { |
9434 | if (NeedsComma) |
9435 | outs() << ", "; |
9436 | outs() << "absolute"; |
9437 | NeedsComma = true; |
9438 | } |
9439 | if (Resolver) { |
9440 | if (NeedsComma) |
9441 | outs() << ", "; |
9442 | outs() << format("resolver=0x%08llX", Entry.other()); |
9443 | NeedsComma = true; |
Value stored to 'NeedsComma' is never read | |
9444 | } |
9445 | outs() << "]"; |
9446 | } |
9447 | if (ReExport) { |
9448 | StringRef DylibName = "unknown"; |
9449 | int Ordinal = Entry.other() - 1; |
9450 | Obj->getLibraryShortNameByIndex(Ordinal, DylibName); |
9451 | if (Entry.otherName().empty()) |
9452 | outs() << " (from " << DylibName << ")"; |
9453 | else |
9454 | outs() << " (" << Entry.otherName() << " from " << DylibName << ")"; |
9455 | } |
9456 | outs() << "\n"; |
9457 | } |
9458 | } |
9459 | |
9460 | //===----------------------------------------------------------------------===// |
9461 | // rebase table dumping |
9462 | //===----------------------------------------------------------------------===// |
9463 | |
9464 | void llvm::printMachORebaseTable(object::MachOObjectFile *Obj) { |
9465 | outs() << "segment section address type\n"; |
9466 | Error Err = Error::success(); |
9467 | for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable(Err)) { |
9468 | StringRef SegmentName = Entry.segmentName(); |
9469 | StringRef SectionName = Entry.sectionName(); |
9470 | uint64_t Address = Entry.address(); |
9471 | |
9472 | // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer |
9473 | outs() << format("%-8s %-18s 0x%08" PRIX64"l" "X" " %s\n", |
9474 | SegmentName.str().c_str(), SectionName.str().c_str(), |
9475 | Address, Entry.typeName().str().c_str()); |
9476 | } |
9477 | if (Err) |
9478 | report_error(Obj->getFileName(), std::move(Err)); |
9479 | } |
9480 | |
9481 | static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) { |
9482 | StringRef DylibName; |
9483 | switch (Ordinal) { |
9484 | case MachO::BIND_SPECIAL_DYLIB_SELF: |
9485 | return "this-image"; |
9486 | case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE: |
9487 | return "main-executable"; |
9488 | case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP: |
9489 | return "flat-namespace"; |
9490 | default: |
9491 | if (Ordinal > 0) { |
9492 | std::error_code EC = |
9493 | Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName); |
9494 | if (EC) |
9495 | return "<<bad library ordinal>>"; |
9496 | return DylibName; |
9497 | } |
9498 | } |
9499 | return "<<unknown special ordinal>>"; |
9500 | } |
9501 | |
9502 | //===----------------------------------------------------------------------===// |
9503 | // bind table dumping |
9504 | //===----------------------------------------------------------------------===// |
9505 | |
9506 | void llvm::printMachOBindTable(object::MachOObjectFile *Obj) { |
9507 | // Build table of sections so names can used in final output. |
9508 | outs() << "segment section address type " |
9509 | "addend dylib symbol\n"; |
9510 | Error Err = Error::success(); |
9511 | for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable(Err)) { |
9512 | StringRef SegmentName = Entry.segmentName(); |
9513 | StringRef SectionName = Entry.sectionName(); |
9514 | uint64_t Address = Entry.address(); |
9515 | |
9516 | // Table lines look like: |
9517 | // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard |
9518 | StringRef Attr; |
9519 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT) |
9520 | Attr = " (weak_import)"; |
9521 | outs() << left_justify(SegmentName, 8) << " " |
9522 | << left_justify(SectionName, 18) << " " |
9523 | << format_hex(Address, 10, true) << " " |
9524 | << left_justify(Entry.typeName(), 8) << " " |
9525 | << format_decimal(Entry.addend(), 8) << " " |
9526 | << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " |
9527 | << Entry.symbolName() << Attr << "\n"; |
9528 | } |
9529 | if (Err) |
9530 | report_error(Obj->getFileName(), std::move(Err)); |
9531 | } |
9532 | |
9533 | //===----------------------------------------------------------------------===// |
9534 | // lazy bind table dumping |
9535 | //===----------------------------------------------------------------------===// |
9536 | |
9537 | void llvm::printMachOLazyBindTable(object::MachOObjectFile *Obj) { |
9538 | outs() << "segment section address " |
9539 | "dylib symbol\n"; |
9540 | Error Err = Error::success(); |
9541 | for (const llvm::object::MachOBindEntry &Entry : Obj->lazyBindTable(Err)) { |
9542 | StringRef SegmentName = Entry.segmentName(); |
9543 | StringRef SectionName = Entry.sectionName(); |
9544 | uint64_t Address = Entry.address(); |
9545 | |
9546 | // Table lines look like: |
9547 | // __DATA __got 0x00012010 libSystem ___stack_chk_guard |
9548 | outs() << left_justify(SegmentName, 8) << " " |
9549 | << left_justify(SectionName, 18) << " " |
9550 | << format_hex(Address, 10, true) << " " |
9551 | << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " |
9552 | << Entry.symbolName() << "\n"; |
9553 | } |
9554 | if (Err) |
9555 | report_error(Obj->getFileName(), std::move(Err)); |
9556 | } |
9557 | |
9558 | //===----------------------------------------------------------------------===// |
9559 | // weak bind table dumping |
9560 | //===----------------------------------------------------------------------===// |
9561 | |
9562 | void llvm::printMachOWeakBindTable(object::MachOObjectFile *Obj) { |
9563 | outs() << "segment section address " |
9564 | "type addend symbol\n"; |
9565 | Error Err = Error::success(); |
9566 | for (const llvm::object::MachOBindEntry &Entry : Obj->weakBindTable(Err)) { |
9567 | // Strong symbols don't have a location to update. |
9568 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) { |
9569 | outs() << " strong " |
9570 | << Entry.symbolName() << "\n"; |
9571 | continue; |
9572 | } |
9573 | StringRef SegmentName = Entry.segmentName(); |
9574 | StringRef SectionName = Entry.sectionName(); |
9575 | uint64_t Address = Entry.address(); |
9576 | |
9577 | // Table lines look like: |
9578 | // __DATA __data 0x00001000 pointer 0 _foo |
9579 | outs() << left_justify(SegmentName, 8) << " " |
9580 | << left_justify(SectionName, 18) << " " |
9581 | << format_hex(Address, 10, true) << " " |
9582 | << left_justify(Entry.typeName(), 8) << " " |
9583 | << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName() |
9584 | << "\n"; |
9585 | } |
9586 | if (Err) |
9587 | report_error(Obj->getFileName(), std::move(Err)); |
9588 | } |
9589 | |
9590 | // get_dyld_bind_info_symbolname() is used for disassembly and passed an |
9591 | // address, ReferenceValue, in the Mach-O file and looks in the dyld bind |
9592 | // information for that address. If the address is found its binding symbol |
9593 | // name is returned. If not nullptr is returned. |
9594 | static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, |
9595 | struct DisassembleInfo *info) { |
9596 | if (info->bindtable == nullptr) { |
9597 | info->bindtable = llvm::make_unique<SymbolAddressMap>(); |
9598 | Error Err = Error::success(); |
9599 | for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable(Err)) { |
9600 | uint64_t Address = Entry.address(); |
9601 | StringRef name = Entry.symbolName(); |
9602 | if (!name.empty()) |
9603 | (*info->bindtable)[Address] = name; |
9604 | } |
9605 | if (Err) |
9606 | report_error(info->O->getFileName(), std::move(Err)); |
9607 | } |
9608 | auto name = info->bindtable->lookup(ReferenceValue); |
9609 | return !name.empty() ? name.data() : nullptr; |
9610 | } |