File: | tools/llvm-objdump/MachODump.cpp |
Warning: | line 5119, column 3 Value stored to 'name' is never read |
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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 | ArchiveMemberOffsets("archive-member-offsets", |
80 | cl::desc("Print the offset to each archive member for " |
81 | "Mach-O archives (requires -macho and " |
82 | "-archive-headers)")); |
83 | |
84 | cl::opt<bool> |
85 | llvm::IndirectSymbols("indirect-symbols", |
86 | cl::desc("Print indirect symbol table for Mach-O " |
87 | "objects (requires -macho)")); |
88 | |
89 | cl::opt<bool> |
90 | llvm::DataInCode("data-in-code", |
91 | cl::desc("Print the data in code table for Mach-O objects " |
92 | "(requires -macho)")); |
93 | |
94 | cl::opt<bool> |
95 | llvm::LinkOptHints("link-opt-hints", |
96 | cl::desc("Print the linker optimization hints for " |
97 | "Mach-O objects (requires -macho)")); |
98 | |
99 | cl::opt<bool> |
100 | llvm::InfoPlist("info-plist", |
101 | cl::desc("Print the info plist section as strings for " |
102 | "Mach-O objects (requires -macho)")); |
103 | |
104 | cl::opt<bool> |
105 | llvm::DylibsUsed("dylibs-used", |
106 | cl::desc("Print the shared libraries used for linked " |
107 | "Mach-O files (requires -macho)")); |
108 | |
109 | cl::opt<bool> |
110 | llvm::DylibId("dylib-id", |
111 | cl::desc("Print the shared library's id for the dylib Mach-O " |
112 | "file (requires -macho)")); |
113 | |
114 | cl::opt<bool> |
115 | llvm::NonVerbose("non-verbose", |
116 | cl::desc("Print the info for Mach-O objects in " |
117 | "non-verbose or numeric form (requires -macho)")); |
118 | |
119 | cl::opt<bool> |
120 | llvm::ObjcMetaData("objc-meta-data", |
121 | cl::desc("Print the Objective-C runtime meta data for " |
122 | "Mach-O files (requires -macho)")); |
123 | |
124 | cl::opt<std::string> llvm::DisSymName( |
125 | "dis-symname", |
126 | cl::desc("disassemble just this symbol's instructions (requires -macho)")); |
127 | |
128 | static cl::opt<bool> NoSymbolicOperands( |
129 | "no-symbolic-operands", |
130 | cl::desc("do not symbolic operands when disassembling (requires -macho)")); |
131 | |
132 | static cl::list<std::string> |
133 | ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"), |
134 | cl::ZeroOrMore); |
135 | |
136 | bool ArchAll = false; |
137 | |
138 | static std::string ThumbTripleName; |
139 | |
140 | static const Target *GetTarget(const MachOObjectFile *MachOObj, |
141 | const char **McpuDefault, |
142 | const Target **ThumbTarget) { |
143 | // Figure out the target triple. |
144 | llvm::Triple TT(TripleName); |
145 | if (TripleName.empty()) { |
146 | TT = MachOObj->getArchTriple(McpuDefault); |
147 | TripleName = TT.str(); |
148 | } |
149 | |
150 | if (TT.getArch() == Triple::arm) { |
151 | // We've inferred a 32-bit ARM target from the object file. All MachO CPUs |
152 | // that support ARM are also capable of Thumb mode. |
153 | llvm::Triple ThumbTriple = TT; |
154 | std::string ThumbName = (Twine("thumb") + TT.getArchName().substr(3)).str(); |
155 | ThumbTriple.setArchName(ThumbName); |
156 | ThumbTripleName = ThumbTriple.str(); |
157 | } |
158 | |
159 | // Get the target specific parser. |
160 | std::string Error; |
161 | const Target *TheTarget = TargetRegistry::lookupTarget(TripleName, Error); |
162 | if (TheTarget && ThumbTripleName.empty()) |
163 | return TheTarget; |
164 | |
165 | *ThumbTarget = TargetRegistry::lookupTarget(ThumbTripleName, Error); |
166 | if (*ThumbTarget) |
167 | return TheTarget; |
168 | |
169 | errs() << "llvm-objdump: error: unable to get target for '"; |
170 | if (!TheTarget) |
171 | errs() << TripleName; |
172 | else |
173 | errs() << ThumbTripleName; |
174 | errs() << "', see --version and --triple.\n"; |
175 | return nullptr; |
176 | } |
177 | |
178 | struct SymbolSorter { |
179 | bool operator()(const SymbolRef &A, const SymbolRef &B) { |
180 | Expected<SymbolRef::Type> ATypeOrErr = A.getType(); |
181 | if (!ATypeOrErr) |
182 | report_error(A.getObject()->getFileName(), ATypeOrErr.takeError()); |
183 | SymbolRef::Type AType = *ATypeOrErr; |
184 | Expected<SymbolRef::Type> BTypeOrErr = B.getType(); |
185 | if (!BTypeOrErr) |
186 | report_error(B.getObject()->getFileName(), BTypeOrErr.takeError()); |
187 | SymbolRef::Type BType = *BTypeOrErr; |
188 | uint64_t AAddr = (AType != SymbolRef::ST_Function) ? 0 : A.getValue(); |
189 | uint64_t BAddr = (BType != SymbolRef::ST_Function) ? 0 : B.getValue(); |
190 | return AAddr < BAddr; |
191 | } |
192 | }; |
193 | |
194 | // Types for the storted data in code table that is built before disassembly |
195 | // and the predicate function to sort them. |
196 | typedef std::pair<uint64_t, DiceRef> DiceTableEntry; |
197 | typedef std::vector<DiceTableEntry> DiceTable; |
198 | typedef DiceTable::iterator dice_table_iterator; |
199 | |
200 | #ifdef HAVE_LIBXAR |
201 | namespace { |
202 | struct ScopedXarFile { |
203 | xar_t xar; |
204 | ScopedXarFile(const char *filename, int32_t flags) |
205 | : xar(xar_open(filename, flags)) {} |
206 | ~ScopedXarFile() { |
207 | if (xar) |
208 | xar_close(xar); |
209 | } |
210 | ScopedXarFile(const ScopedXarFile &) = delete; |
211 | ScopedXarFile &operator=(const ScopedXarFile &) = delete; |
212 | operator xar_t() { return xar; } |
213 | }; |
214 | |
215 | struct ScopedXarIter { |
216 | xar_iter_t iter; |
217 | ScopedXarIter() : iter(xar_iter_new()) {} |
218 | ~ScopedXarIter() { |
219 | if (iter) |
220 | xar_iter_free(iter); |
221 | } |
222 | ScopedXarIter(const ScopedXarIter &) = delete; |
223 | ScopedXarIter &operator=(const ScopedXarIter &) = delete; |
224 | operator xar_iter_t() { return iter; } |
225 | }; |
226 | } // namespace |
227 | #endif // defined(HAVE_LIBXAR) |
228 | |
229 | // This is used to search for a data in code table entry for the PC being |
230 | // disassembled. The j parameter has the PC in j.first. A single data in code |
231 | // table entry can cover many bytes for each of its Kind's. So if the offset, |
232 | // aka the i.first value, of the data in code table entry plus its Length |
233 | // covers the PC being searched for this will return true. If not it will |
234 | // return false. |
235 | static bool compareDiceTableEntries(const DiceTableEntry &i, |
236 | const DiceTableEntry &j) { |
237 | uint16_t Length; |
238 | i.second.getLength(Length); |
239 | |
240 | return j.first >= i.first && j.first < i.first + Length; |
241 | } |
242 | |
243 | static uint64_t DumpDataInCode(const uint8_t *bytes, uint64_t Length, |
244 | unsigned short Kind) { |
245 | uint32_t Value, Size = 1; |
246 | |
247 | switch (Kind) { |
248 | default: |
249 | case MachO::DICE_KIND_DATA: |
250 | if (Length >= 4) { |
251 | if (!NoShowRawInsn) |
252 | dumpBytes(makeArrayRef(bytes, 4), outs()); |
253 | Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; |
254 | outs() << "\t.long " << Value; |
255 | Size = 4; |
256 | } else if (Length >= 2) { |
257 | if (!NoShowRawInsn) |
258 | dumpBytes(makeArrayRef(bytes, 2), outs()); |
259 | Value = bytes[1] << 8 | bytes[0]; |
260 | outs() << "\t.short " << Value; |
261 | Size = 2; |
262 | } else { |
263 | if (!NoShowRawInsn) |
264 | dumpBytes(makeArrayRef(bytes, 2), outs()); |
265 | Value = bytes[0]; |
266 | outs() << "\t.byte " << Value; |
267 | Size = 1; |
268 | } |
269 | if (Kind == MachO::DICE_KIND_DATA) |
270 | outs() << "\t@ KIND_DATA\n"; |
271 | else |
272 | outs() << "\t@ data in code kind = " << Kind << "\n"; |
273 | break; |
274 | case MachO::DICE_KIND_JUMP_TABLE8: |
275 | if (!NoShowRawInsn) |
276 | dumpBytes(makeArrayRef(bytes, 1), outs()); |
277 | Value = bytes[0]; |
278 | outs() << "\t.byte " << format("%3u", Value) << "\t@ KIND_JUMP_TABLE8\n"; |
279 | Size = 1; |
280 | break; |
281 | case MachO::DICE_KIND_JUMP_TABLE16: |
282 | if (!NoShowRawInsn) |
283 | dumpBytes(makeArrayRef(bytes, 2), outs()); |
284 | Value = bytes[1] << 8 | bytes[0]; |
285 | outs() << "\t.short " << format("%5u", Value & 0xffff) |
286 | << "\t@ KIND_JUMP_TABLE16\n"; |
287 | Size = 2; |
288 | break; |
289 | case MachO::DICE_KIND_JUMP_TABLE32: |
290 | case MachO::DICE_KIND_ABS_JUMP_TABLE32: |
291 | if (!NoShowRawInsn) |
292 | dumpBytes(makeArrayRef(bytes, 4), outs()); |
293 | Value = bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0]; |
294 | outs() << "\t.long " << Value; |
295 | if (Kind == MachO::DICE_KIND_JUMP_TABLE32) |
296 | outs() << "\t@ KIND_JUMP_TABLE32\n"; |
297 | else |
298 | outs() << "\t@ KIND_ABS_JUMP_TABLE32\n"; |
299 | Size = 4; |
300 | break; |
301 | } |
302 | return Size; |
303 | } |
304 | |
305 | static void getSectionsAndSymbols(MachOObjectFile *MachOObj, |
306 | std::vector<SectionRef> &Sections, |
307 | std::vector<SymbolRef> &Symbols, |
308 | SmallVectorImpl<uint64_t> &FoundFns, |
309 | uint64_t &BaseSegmentAddress) { |
310 | for (const SymbolRef &Symbol : MachOObj->symbols()) { |
311 | Expected<StringRef> SymName = Symbol.getName(); |
312 | if (!SymName) |
313 | report_error(MachOObj->getFileName(), SymName.takeError()); |
314 | if (!SymName->startswith("ltmp")) |
315 | Symbols.push_back(Symbol); |
316 | } |
317 | |
318 | for (const SectionRef &Section : MachOObj->sections()) { |
319 | StringRef SectName; |
320 | Section.getName(SectName); |
321 | Sections.push_back(Section); |
322 | } |
323 | |
324 | bool BaseSegmentAddressSet = false; |
325 | for (const auto &Command : MachOObj->load_commands()) { |
326 | if (Command.C.cmd == MachO::LC_FUNCTION_STARTS) { |
327 | // We found a function starts segment, parse the addresses for later |
328 | // consumption. |
329 | MachO::linkedit_data_command LLC = |
330 | MachOObj->getLinkeditDataLoadCommand(Command); |
331 | |
332 | MachOObj->ReadULEB128s(LLC.dataoff, FoundFns); |
333 | } else if (Command.C.cmd == MachO::LC_SEGMENT) { |
334 | MachO::segment_command SLC = MachOObj->getSegmentLoadCommand(Command); |
335 | StringRef SegName = SLC.segname; |
336 | if (!BaseSegmentAddressSet && SegName != "__PAGEZERO") { |
337 | BaseSegmentAddressSet = true; |
338 | BaseSegmentAddress = SLC.vmaddr; |
339 | } |
340 | } |
341 | } |
342 | } |
343 | |
344 | static void PrintIndirectSymbolTable(MachOObjectFile *O, bool verbose, |
345 | uint32_t n, uint32_t count, |
346 | uint32_t stride, uint64_t addr) { |
347 | MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
348 | uint32_t nindirectsyms = Dysymtab.nindirectsyms; |
349 | if (n > nindirectsyms) |
350 | outs() << " (entries start past the end of the indirect symbol " |
351 | "table) (reserved1 field greater than the table size)"; |
352 | else if (n + count > nindirectsyms) |
353 | outs() << " (entries extends past the end of the indirect symbol " |
354 | "table)"; |
355 | outs() << "\n"; |
356 | uint32_t cputype = O->getHeader().cputype; |
357 | if (cputype & MachO::CPU_ARCH_ABI64) |
358 | outs() << "address index"; |
359 | else |
360 | outs() << "address index"; |
361 | if (verbose) |
362 | outs() << " name\n"; |
363 | else |
364 | outs() << "\n"; |
365 | for (uint32_t j = 0; j < count && n + j < nindirectsyms; j++) { |
366 | if (cputype & MachO::CPU_ARCH_ABI64) |
367 | outs() << format("0x%016" PRIx64"l" "x", addr + j * stride) << " "; |
368 | else |
369 | outs() << format("0x%08" PRIx32"x", (uint32_t)addr + j * stride) << " "; |
370 | MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
371 | uint32_t indirect_symbol = O->getIndirectSymbolTableEntry(Dysymtab, n + j); |
372 | if (indirect_symbol == MachO::INDIRECT_SYMBOL_LOCAL) { |
373 | outs() << "LOCAL\n"; |
374 | continue; |
375 | } |
376 | if (indirect_symbol == |
377 | (MachO::INDIRECT_SYMBOL_LOCAL | MachO::INDIRECT_SYMBOL_ABS)) { |
378 | outs() << "LOCAL ABSOLUTE\n"; |
379 | continue; |
380 | } |
381 | if (indirect_symbol == MachO::INDIRECT_SYMBOL_ABS) { |
382 | outs() << "ABSOLUTE\n"; |
383 | continue; |
384 | } |
385 | outs() << format("%5u ", indirect_symbol); |
386 | if (verbose) { |
387 | MachO::symtab_command Symtab = O->getSymtabLoadCommand(); |
388 | if (indirect_symbol < Symtab.nsyms) { |
389 | symbol_iterator Sym = O->getSymbolByIndex(indirect_symbol); |
390 | SymbolRef Symbol = *Sym; |
391 | Expected<StringRef> SymName = Symbol.getName(); |
392 | if (!SymName) |
393 | report_error(O->getFileName(), SymName.takeError()); |
394 | outs() << *SymName; |
395 | } else { |
396 | outs() << "?"; |
397 | } |
398 | } |
399 | outs() << "\n"; |
400 | } |
401 | } |
402 | |
403 | static void PrintIndirectSymbols(MachOObjectFile *O, bool verbose) { |
404 | for (const auto &Load : O->load_commands()) { |
405 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
406 | MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); |
407 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
408 | MachO::section_64 Sec = O->getSection64(Load, J); |
409 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
410 | if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
411 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
412 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
413 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
414 | section_type == MachO::S_SYMBOL_STUBS) { |
415 | uint32_t stride; |
416 | if (section_type == MachO::S_SYMBOL_STUBS) |
417 | stride = Sec.reserved2; |
418 | else |
419 | stride = 8; |
420 | if (stride == 0) { |
421 | outs() << "Can't print indirect symbols for (" << Sec.segname << "," |
422 | << Sec.sectname << ") " |
423 | << "(size of stubs in reserved2 field is zero)\n"; |
424 | continue; |
425 | } |
426 | uint32_t count = Sec.size / stride; |
427 | outs() << "Indirect symbols for (" << Sec.segname << "," |
428 | << Sec.sectname << ") " << count << " entries"; |
429 | uint32_t n = Sec.reserved1; |
430 | PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); |
431 | } |
432 | } |
433 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
434 | MachO::segment_command Seg = O->getSegmentLoadCommand(Load); |
435 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
436 | MachO::section Sec = O->getSection(Load, J); |
437 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
438 | if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
439 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
440 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
441 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
442 | section_type == MachO::S_SYMBOL_STUBS) { |
443 | uint32_t stride; |
444 | if (section_type == MachO::S_SYMBOL_STUBS) |
445 | stride = Sec.reserved2; |
446 | else |
447 | stride = 4; |
448 | if (stride == 0) { |
449 | outs() << "Can't print indirect symbols for (" << Sec.segname << "," |
450 | << Sec.sectname << ") " |
451 | << "(size of stubs in reserved2 field is zero)\n"; |
452 | continue; |
453 | } |
454 | uint32_t count = Sec.size / stride; |
455 | outs() << "Indirect symbols for (" << Sec.segname << "," |
456 | << Sec.sectname << ") " << count << " entries"; |
457 | uint32_t n = Sec.reserved1; |
458 | PrintIndirectSymbolTable(O, verbose, n, count, stride, Sec.addr); |
459 | } |
460 | } |
461 | } |
462 | } |
463 | } |
464 | |
465 | static void PrintRType(const uint64_t cputype, const unsigned r_type) { |
466 | static char const *generic_r_types[] = { |
467 | "VANILLA ", "PAIR ", "SECTDIF ", "PBLAPTR ", "LOCSDIF ", "TLV ", |
468 | " 6 (?) ", " 7 (?) ", " 8 (?) ", " 9 (?) ", " 10 (?) ", " 11 (?) ", |
469 | " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
470 | }; |
471 | static char const *x86_64_r_types[] = { |
472 | "UNSIGND ", "SIGNED ", "BRANCH ", "GOT_LD ", "GOT ", "SUB ", |
473 | "SIGNED1 ", "SIGNED2 ", "SIGNED4 ", "TLV ", " 10 (?) ", " 11 (?) ", |
474 | " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
475 | }; |
476 | static char const *arm_r_types[] = { |
477 | "VANILLA ", "PAIR ", "SECTDIFF", "LOCSDIF ", "PBLAPTR ", |
478 | "BR24 ", "T_BR22 ", "T_BR32 ", "HALF ", "HALFDIF ", |
479 | " 10 (?) ", " 11 (?) ", " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
480 | }; |
481 | static char const *arm64_r_types[] = { |
482 | "UNSIGND ", "SUB ", "BR26 ", "PAGE21 ", "PAGOF12 ", |
483 | "GOTLDP ", "GOTLDPOF", "PTRTGOT ", "TLVLDP ", "TLVLDPOF", |
484 | "ADDEND ", " 11 (?) ", " 12 (?) ", " 13 (?) ", " 14 (?) ", " 15 (?) " |
485 | }; |
486 | |
487 | if (r_type > 0xf){ |
488 | outs() << format("%-7u", r_type) << " "; |
489 | return; |
490 | } |
491 | switch (cputype) { |
492 | case MachO::CPU_TYPE_I386: |
493 | outs() << generic_r_types[r_type]; |
494 | break; |
495 | case MachO::CPU_TYPE_X86_64: |
496 | outs() << x86_64_r_types[r_type]; |
497 | break; |
498 | case MachO::CPU_TYPE_ARM: |
499 | outs() << arm_r_types[r_type]; |
500 | break; |
501 | case MachO::CPU_TYPE_ARM64: |
502 | outs() << arm64_r_types[r_type]; |
503 | break; |
504 | default: |
505 | outs() << format("%-7u ", r_type); |
506 | } |
507 | } |
508 | |
509 | static void PrintRLength(const uint64_t cputype, const unsigned r_type, |
510 | const unsigned r_length, const bool previous_arm_half){ |
511 | if (cputype == MachO::CPU_TYPE_ARM && |
512 | (r_type == llvm::MachO::ARM_RELOC_HALF || |
513 | r_type == llvm::MachO::ARM_RELOC_HALF_SECTDIFF || |
514 | previous_arm_half == true)) { |
515 | if ((r_length & 0x1) == 0) |
516 | outs() << "lo/"; |
517 | else |
518 | outs() << "hi/"; |
519 | if ((r_length & 0x1) == 0) |
520 | outs() << "arm "; |
521 | else |
522 | outs() << "thm "; |
523 | } else { |
524 | switch (r_length) { |
525 | case 0: |
526 | outs() << "byte "; |
527 | break; |
528 | case 1: |
529 | outs() << "word "; |
530 | break; |
531 | case 2: |
532 | outs() << "long "; |
533 | break; |
534 | case 3: |
535 | if (cputype == MachO::CPU_TYPE_X86_64) |
536 | outs() << "quad "; |
537 | else |
538 | outs() << format("?(%2d) ", r_length); |
539 | break; |
540 | default: |
541 | outs() << format("?(%2d) ", r_length); |
542 | } |
543 | } |
544 | } |
545 | |
546 | static void PrintRelocationEntries(const MachOObjectFile *O, |
547 | const relocation_iterator Begin, |
548 | const relocation_iterator End, |
549 | const uint64_t cputype, |
550 | const bool verbose) { |
551 | const MachO::symtab_command Symtab = O->getSymtabLoadCommand(); |
552 | bool previous_arm_half = false; |
553 | bool previous_sectdiff = false; |
554 | uint32_t sectdiff_r_type = 0; |
555 | |
556 | for (relocation_iterator Reloc = Begin; Reloc != End; ++Reloc) { |
557 | const DataRefImpl Rel = Reloc->getRawDataRefImpl(); |
558 | const MachO::any_relocation_info RE = O->getRelocation(Rel); |
559 | const unsigned r_type = O->getAnyRelocationType(RE); |
560 | const bool r_scattered = O->isRelocationScattered(RE); |
561 | const unsigned r_pcrel = O->getAnyRelocationPCRel(RE); |
562 | const unsigned r_length = O->getAnyRelocationLength(RE); |
563 | const unsigned r_address = O->getAnyRelocationAddress(RE); |
564 | const bool r_extern = (r_scattered ? false : |
565 | O->getPlainRelocationExternal(RE)); |
566 | const uint32_t r_value = (r_scattered ? |
567 | O->getScatteredRelocationValue(RE) : 0); |
568 | const unsigned r_symbolnum = (r_scattered ? 0 : |
569 | O->getPlainRelocationSymbolNum(RE)); |
570 | |
571 | if (r_scattered && cputype != MachO::CPU_TYPE_X86_64) { |
572 | if (verbose) { |
573 | // scattered: address |
574 | if ((cputype == MachO::CPU_TYPE_I386 && |
575 | r_type == llvm::MachO::GENERIC_RELOC_PAIR) || |
576 | (cputype == MachO::CPU_TYPE_ARM && |
577 | r_type == llvm::MachO::ARM_RELOC_PAIR)) |
578 | outs() << " "; |
579 | else |
580 | outs() << format("%08x ", (unsigned int)r_address); |
581 | |
582 | // scattered: pcrel |
583 | if (r_pcrel) |
584 | outs() << "True "; |
585 | else |
586 | outs() << "False "; |
587 | |
588 | // scattered: length |
589 | PrintRLength(cputype, r_type, r_length, previous_arm_half); |
590 | |
591 | // scattered: extern & type |
592 | outs() << "n/a "; |
593 | PrintRType(cputype, r_type); |
594 | |
595 | // scattered: scattered & value |
596 | outs() << format("True 0x%08x", (unsigned int)r_value); |
597 | if (previous_sectdiff == false) { |
598 | if ((cputype == MachO::CPU_TYPE_ARM && |
599 | r_type == llvm::MachO::ARM_RELOC_PAIR)) |
600 | outs() << format(" half = 0x%04x ", (unsigned int)r_address); |
601 | } |
602 | else if (cputype == MachO::CPU_TYPE_ARM && |
603 | sectdiff_r_type == llvm::MachO::ARM_RELOC_HALF_SECTDIFF) |
604 | outs() << format(" other_half = 0x%04x ", (unsigned int)r_address); |
605 | if ((cputype == MachO::CPU_TYPE_I386 && |
606 | (r_type == llvm::MachO::GENERIC_RELOC_SECTDIFF || |
607 | r_type == llvm::MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) || |
608 | (cputype == MachO::CPU_TYPE_ARM && |
609 | (sectdiff_r_type == llvm::MachO::ARM_RELOC_SECTDIFF || |
610 | sectdiff_r_type == llvm::MachO::ARM_RELOC_LOCAL_SECTDIFF || |
611 | sectdiff_r_type == llvm::MachO::ARM_RELOC_HALF_SECTDIFF))) { |
612 | previous_sectdiff = true; |
613 | sectdiff_r_type = r_type; |
614 | } |
615 | else { |
616 | previous_sectdiff = false; |
617 | sectdiff_r_type = 0; |
618 | } |
619 | if (cputype == MachO::CPU_TYPE_ARM && |
620 | (r_type == llvm::MachO::ARM_RELOC_HALF || |
621 | r_type == llvm::MachO::ARM_RELOC_HALF_SECTDIFF)) |
622 | previous_arm_half = true; |
623 | else |
624 | previous_arm_half = false; |
625 | outs() << "\n"; |
626 | } |
627 | else { |
628 | // scattered: address pcrel length extern type scattered value |
629 | outs() << format("%08x %1d %-2d n/a %-7d 1 0x%08x\n", |
630 | (unsigned int)r_address, r_pcrel, r_length, r_type, |
631 | (unsigned int)r_value); |
632 | } |
633 | } |
634 | else { |
635 | if (verbose) { |
636 | // plain: address |
637 | if (cputype == MachO::CPU_TYPE_ARM && |
638 | r_type == llvm::MachO::ARM_RELOC_PAIR) |
639 | outs() << " "; |
640 | else |
641 | outs() << format("%08x ", (unsigned int)r_address); |
642 | |
643 | // plain: pcrel |
644 | if (r_pcrel) |
645 | outs() << "True "; |
646 | else |
647 | outs() << "False "; |
648 | |
649 | // plain: length |
650 | PrintRLength(cputype, r_type, r_length, previous_arm_half); |
651 | |
652 | if (r_extern) { |
653 | // plain: extern & type & scattered |
654 | outs() << "True "; |
655 | PrintRType(cputype, r_type); |
656 | outs() << "False "; |
657 | |
658 | // plain: symbolnum/value |
659 | if (r_symbolnum > Symtab.nsyms) |
660 | outs() << format("?(%d)\n", r_symbolnum); |
661 | else { |
662 | SymbolRef Symbol = *O->getSymbolByIndex(r_symbolnum); |
663 | Expected<StringRef> SymNameNext = Symbol.getName(); |
664 | const char *name = NULL__null; |
665 | if (SymNameNext) |
666 | name = SymNameNext->data(); |
667 | if (name == NULL__null) |
668 | outs() << format("?(%d)\n", r_symbolnum); |
669 | else |
670 | outs() << name << "\n"; |
671 | } |
672 | } |
673 | else { |
674 | // plain: extern & type & scattered |
675 | outs() << "False "; |
676 | PrintRType(cputype, r_type); |
677 | outs() << "False "; |
678 | |
679 | // plain: symbolnum/value |
680 | if (cputype == MachO::CPU_TYPE_ARM && |
681 | r_type == llvm::MachO::ARM_RELOC_PAIR) |
682 | outs() << format("other_half = 0x%04x\n", (unsigned int)r_address); |
683 | else if (cputype == MachO::CPU_TYPE_ARM64 && |
684 | r_type == llvm::MachO::ARM64_RELOC_ADDEND) |
685 | outs() << format("addend = 0x%06x\n", (unsigned int)r_symbolnum); |
686 | else { |
687 | outs() << format("%d ", r_symbolnum); |
688 | if (r_symbolnum == llvm::MachO::R_ABS) |
689 | outs() << "R_ABS\n"; |
690 | else { |
691 | // in this case, r_symbolnum is actually a 1-based section number |
692 | uint32_t nsects = O->section_end()->getRawDataRefImpl().d.a; |
693 | if (r_symbolnum > 0 && r_symbolnum <= nsects) { |
694 | llvm::object::DataRefImpl DRI; |
695 | DRI.d.a = r_symbolnum-1; |
696 | StringRef SegName = O->getSectionFinalSegmentName(DRI); |
697 | StringRef SectName; |
698 | if (O->getSectionName(DRI, SectName)) |
699 | outs() << "(?,?)\n"; |
700 | else |
701 | outs() << "(" << SegName << "," << SectName << ")\n"; |
702 | } |
703 | else { |
704 | outs() << "(?,?)\n"; |
705 | } |
706 | } |
707 | } |
708 | } |
709 | if (cputype == MachO::CPU_TYPE_ARM && |
710 | (r_type == llvm::MachO::ARM_RELOC_HALF || |
711 | r_type == llvm::MachO::ARM_RELOC_HALF_SECTDIFF)) |
712 | previous_arm_half = true; |
713 | else |
714 | previous_arm_half = false; |
715 | } |
716 | else { |
717 | // plain: address pcrel length extern type scattered symbolnum/section |
718 | outs() << format("%08x %1d %-2d %1d %-7d 0 %d\n", |
719 | (unsigned int)r_address, r_pcrel, r_length, r_extern, |
720 | r_type, r_symbolnum); |
721 | } |
722 | } |
723 | } |
724 | } |
725 | |
726 | static void PrintRelocations(const MachOObjectFile *O, const bool verbose) { |
727 | const uint64_t cputype = O->getHeader().cputype; |
728 | const MachO::dysymtab_command Dysymtab = O->getDysymtabLoadCommand(); |
729 | if (Dysymtab.nextrel != 0) { |
730 | outs() << "External relocation information " << Dysymtab.nextrel |
731 | << " entries"; |
732 | outs() << "\naddress pcrel length extern type scattered " |
733 | "symbolnum/value\n"; |
734 | PrintRelocationEntries(O, O->extrel_begin(), O->extrel_end(), cputype, |
735 | verbose); |
736 | } |
737 | if (Dysymtab.nlocrel != 0) { |
738 | outs() << format("Local relocation information %u entries", |
739 | Dysymtab.nlocrel); |
740 | outs() << "\naddress pcrel length extern type scattered " |
741 | "symbolnum/value\n"; |
742 | PrintRelocationEntries(O, O->locrel_begin(), O->locrel_end(), cputype, |
743 | verbose); |
744 | } |
745 | for (const auto &Load : O->load_commands()) { |
746 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
747 | const MachO::segment_command_64 Seg = O->getSegment64LoadCommand(Load); |
748 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
749 | const MachO::section_64 Sec = O->getSection64(Load, J); |
750 | if (Sec.nreloc != 0) { |
751 | DataRefImpl DRI; |
752 | DRI.d.a = J; |
753 | const StringRef SegName = O->getSectionFinalSegmentName(DRI); |
754 | StringRef SectName; |
755 | if (O->getSectionName(DRI, SectName)) |
756 | outs() << "Relocation information (" << SegName << ",?) " |
757 | << format("%u entries", Sec.nreloc); |
758 | else |
759 | outs() << "Relocation information (" << SegName << "," |
760 | << SectName << format(") %u entries", Sec.nreloc); |
761 | outs() << "\naddress pcrel length extern type scattered " |
762 | "symbolnum/value\n"; |
763 | PrintRelocationEntries(O, O->section_rel_begin(DRI), |
764 | O->section_rel_end(DRI), cputype, verbose); |
765 | } |
766 | } |
767 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
768 | const MachO::segment_command Seg = O->getSegmentLoadCommand(Load); |
769 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
770 | const MachO::section Sec = O->getSection(Load, J); |
771 | if (Sec.nreloc != 0) { |
772 | DataRefImpl DRI; |
773 | DRI.d.a = J; |
774 | const StringRef SegName = O->getSectionFinalSegmentName(DRI); |
775 | StringRef SectName; |
776 | if (O->getSectionName(DRI, SectName)) |
777 | outs() << "Relocation information (" << SegName << ",?) " |
778 | << format("%u entries", Sec.nreloc); |
779 | else |
780 | outs() << "Relocation information (" << SegName << "," |
781 | << SectName << format(") %u entries", Sec.nreloc); |
782 | outs() << "\naddress pcrel length extern type scattered " |
783 | "symbolnum/value\n"; |
784 | PrintRelocationEntries(O, O->section_rel_begin(DRI), |
785 | O->section_rel_end(DRI), cputype, verbose); |
786 | } |
787 | } |
788 | } |
789 | } |
790 | } |
791 | |
792 | static void PrintDataInCodeTable(MachOObjectFile *O, bool verbose) { |
793 | MachO::linkedit_data_command DIC = O->getDataInCodeLoadCommand(); |
794 | uint32_t nentries = DIC.datasize / sizeof(struct MachO::data_in_code_entry); |
795 | outs() << "Data in code table (" << nentries << " entries)\n"; |
796 | outs() << "offset length kind\n"; |
797 | for (dice_iterator DI = O->begin_dices(), DE = O->end_dices(); DI != DE; |
798 | ++DI) { |
799 | uint32_t Offset; |
800 | DI->getOffset(Offset); |
801 | outs() << format("0x%08" PRIx32"x", Offset) << " "; |
802 | uint16_t Length; |
803 | DI->getLength(Length); |
804 | outs() << format("%6u", Length) << " "; |
805 | uint16_t Kind; |
806 | DI->getKind(Kind); |
807 | if (verbose) { |
808 | switch (Kind) { |
809 | case MachO::DICE_KIND_DATA: |
810 | outs() << "DATA"; |
811 | break; |
812 | case MachO::DICE_KIND_JUMP_TABLE8: |
813 | outs() << "JUMP_TABLE8"; |
814 | break; |
815 | case MachO::DICE_KIND_JUMP_TABLE16: |
816 | outs() << "JUMP_TABLE16"; |
817 | break; |
818 | case MachO::DICE_KIND_JUMP_TABLE32: |
819 | outs() << "JUMP_TABLE32"; |
820 | break; |
821 | case MachO::DICE_KIND_ABS_JUMP_TABLE32: |
822 | outs() << "ABS_JUMP_TABLE32"; |
823 | break; |
824 | default: |
825 | outs() << format("0x%04" PRIx32"x", Kind); |
826 | break; |
827 | } |
828 | } else |
829 | outs() << format("0x%04" PRIx32"x", Kind); |
830 | outs() << "\n"; |
831 | } |
832 | } |
833 | |
834 | static void PrintLinkOptHints(MachOObjectFile *O) { |
835 | MachO::linkedit_data_command LohLC = O->getLinkOptHintsLoadCommand(); |
836 | const char *loh = O->getData().substr(LohLC.dataoff, 1).data(); |
837 | uint32_t nloh = LohLC.datasize; |
838 | outs() << "Linker optimiztion hints (" << nloh << " total bytes)\n"; |
839 | for (uint32_t i = 0; i < nloh;) { |
840 | unsigned n; |
841 | uint64_t identifier = decodeULEB128((const uint8_t *)(loh + i), &n); |
842 | i += n; |
843 | outs() << " identifier " << identifier << " "; |
844 | if (i >= nloh) |
845 | return; |
846 | switch (identifier) { |
847 | case 1: |
848 | outs() << "AdrpAdrp\n"; |
849 | break; |
850 | case 2: |
851 | outs() << "AdrpLdr\n"; |
852 | break; |
853 | case 3: |
854 | outs() << "AdrpAddLdr\n"; |
855 | break; |
856 | case 4: |
857 | outs() << "AdrpLdrGotLdr\n"; |
858 | break; |
859 | case 5: |
860 | outs() << "AdrpAddStr\n"; |
861 | break; |
862 | case 6: |
863 | outs() << "AdrpLdrGotStr\n"; |
864 | break; |
865 | case 7: |
866 | outs() << "AdrpAdd\n"; |
867 | break; |
868 | case 8: |
869 | outs() << "AdrpLdrGot\n"; |
870 | break; |
871 | default: |
872 | outs() << "Unknown identifier value\n"; |
873 | break; |
874 | } |
875 | uint64_t narguments = decodeULEB128((const uint8_t *)(loh + i), &n); |
876 | i += n; |
877 | outs() << " narguments " << narguments << "\n"; |
878 | if (i >= nloh) |
879 | return; |
880 | |
881 | for (uint32_t j = 0; j < narguments; j++) { |
882 | uint64_t value = decodeULEB128((const uint8_t *)(loh + i), &n); |
883 | i += n; |
884 | outs() << "\tvalue " << format("0x%" PRIx64"l" "x", value) << "\n"; |
885 | if (i >= nloh) |
886 | return; |
887 | } |
888 | } |
889 | } |
890 | |
891 | static void PrintDylibs(MachOObjectFile *O, bool JustId) { |
892 | unsigned Index = 0; |
893 | for (const auto &Load : O->load_commands()) { |
894 | if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) || |
895 | (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB || |
896 | Load.C.cmd == MachO::LC_LOAD_DYLIB || |
897 | Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || |
898 | Load.C.cmd == MachO::LC_REEXPORT_DYLIB || |
899 | Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || |
900 | Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) { |
901 | MachO::dylib_command dl = O->getDylibIDLoadCommand(Load); |
902 | if (dl.dylib.name < dl.cmdsize) { |
903 | const char *p = (const char *)(Load.Ptr) + dl.dylib.name; |
904 | if (JustId) |
905 | outs() << p << "\n"; |
906 | else { |
907 | outs() << "\t" << p; |
908 | outs() << " (compatibility version " |
909 | << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." |
910 | << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." |
911 | << (dl.dylib.compatibility_version & 0xff) << ","; |
912 | outs() << " current version " |
913 | << ((dl.dylib.current_version >> 16) & 0xffff) << "." |
914 | << ((dl.dylib.current_version >> 8) & 0xff) << "." |
915 | << (dl.dylib.current_version & 0xff) << ")\n"; |
916 | } |
917 | } else { |
918 | outs() << "\tBad offset (" << dl.dylib.name << ") for name of "; |
919 | if (Load.C.cmd == MachO::LC_ID_DYLIB) |
920 | outs() << "LC_ID_DYLIB "; |
921 | else if (Load.C.cmd == MachO::LC_LOAD_DYLIB) |
922 | outs() << "LC_LOAD_DYLIB "; |
923 | else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
924 | outs() << "LC_LOAD_WEAK_DYLIB "; |
925 | else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
926 | outs() << "LC_LAZY_LOAD_DYLIB "; |
927 | else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB) |
928 | outs() << "LC_REEXPORT_DYLIB "; |
929 | else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
930 | outs() << "LC_LOAD_UPWARD_DYLIB "; |
931 | else |
932 | outs() << "LC_??? "; |
933 | outs() << "command " << Index++ << "\n"; |
934 | } |
935 | } |
936 | } |
937 | } |
938 | |
939 | typedef DenseMap<uint64_t, StringRef> SymbolAddressMap; |
940 | |
941 | static void CreateSymbolAddressMap(MachOObjectFile *O, |
942 | SymbolAddressMap *AddrMap) { |
943 | // Create a map of symbol addresses to symbol names. |
944 | for (const SymbolRef &Symbol : O->symbols()) { |
945 | Expected<SymbolRef::Type> STOrErr = Symbol.getType(); |
946 | if (!STOrErr) |
947 | report_error(O->getFileName(), STOrErr.takeError()); |
948 | SymbolRef::Type ST = *STOrErr; |
949 | if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || |
950 | ST == SymbolRef::ST_Other) { |
951 | uint64_t Address = Symbol.getValue(); |
952 | Expected<StringRef> SymNameOrErr = Symbol.getName(); |
953 | if (!SymNameOrErr) |
954 | report_error(O->getFileName(), SymNameOrErr.takeError()); |
955 | StringRef SymName = *SymNameOrErr; |
956 | if (!SymName.startswith(".objc")) |
957 | (*AddrMap)[Address] = SymName; |
958 | } |
959 | } |
960 | } |
961 | |
962 | // GuessSymbolName is passed the address of what might be a symbol and a |
963 | // pointer to the SymbolAddressMap. It returns the name of a symbol |
964 | // with that address or nullptr if no symbol is found with that address. |
965 | static const char *GuessSymbolName(uint64_t value, SymbolAddressMap *AddrMap) { |
966 | const char *SymbolName = nullptr; |
967 | // A DenseMap can't lookup up some values. |
968 | if (value != 0xffffffffffffffffULL && value != 0xfffffffffffffffeULL) { |
969 | StringRef name = AddrMap->lookup(value); |
970 | if (!name.empty()) |
971 | SymbolName = name.data(); |
972 | } |
973 | return SymbolName; |
974 | } |
975 | |
976 | static void DumpCstringChar(const char c) { |
977 | char p[2]; |
978 | p[0] = c; |
979 | p[1] = '\0'; |
980 | outs().write_escaped(p); |
981 | } |
982 | |
983 | static void DumpCstringSection(MachOObjectFile *O, const char *sect, |
984 | uint32_t sect_size, uint64_t sect_addr, |
985 | bool print_addresses) { |
986 | for (uint32_t i = 0; i < sect_size; i++) { |
987 | if (print_addresses) { |
988 | if (O->is64Bit()) |
989 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
990 | else |
991 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
992 | } |
993 | for (; i < sect_size && sect[i] != '\0'; i++) |
994 | DumpCstringChar(sect[i]); |
995 | if (i < sect_size && sect[i] == '\0') |
996 | outs() << "\n"; |
997 | } |
998 | } |
999 | |
1000 | static void DumpLiteral4(uint32_t l, float f) { |
1001 | outs() << format("0x%08" PRIx32"x", l); |
1002 | if ((l & 0x7f800000) != 0x7f800000) |
1003 | outs() << format(" (%.16e)\n", f); |
1004 | else { |
1005 | if (l == 0x7f800000) |
1006 | outs() << " (+Infinity)\n"; |
1007 | else if (l == 0xff800000) |
1008 | outs() << " (-Infinity)\n"; |
1009 | else if ((l & 0x00400000) == 0x00400000) |
1010 | outs() << " (non-signaling Not-a-Number)\n"; |
1011 | else |
1012 | outs() << " (signaling Not-a-Number)\n"; |
1013 | } |
1014 | } |
1015 | |
1016 | static void DumpLiteral4Section(MachOObjectFile *O, const char *sect, |
1017 | uint32_t sect_size, uint64_t sect_addr, |
1018 | bool print_addresses) { |
1019 | for (uint32_t i = 0; i < sect_size; i += sizeof(float)) { |
1020 | if (print_addresses) { |
1021 | if (O->is64Bit()) |
1022 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
1023 | else |
1024 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
1025 | } |
1026 | float f; |
1027 | memcpy(&f, sect + i, sizeof(float)); |
1028 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1029 | sys::swapByteOrder(f); |
1030 | uint32_t l; |
1031 | memcpy(&l, sect + i, sizeof(uint32_t)); |
1032 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1033 | sys::swapByteOrder(l); |
1034 | DumpLiteral4(l, f); |
1035 | } |
1036 | } |
1037 | |
1038 | static void DumpLiteral8(MachOObjectFile *O, uint32_t l0, uint32_t l1, |
1039 | double d) { |
1040 | outs() << format("0x%08" PRIx32"x", l0) << " " << format("0x%08" PRIx32"x", l1); |
1041 | uint32_t Hi, Lo; |
1042 | Hi = (O->isLittleEndian()) ? l1 : l0; |
1043 | Lo = (O->isLittleEndian()) ? l0 : l1; |
1044 | |
1045 | // Hi is the high word, so this is equivalent to if(isfinite(d)) |
1046 | if ((Hi & 0x7ff00000) != 0x7ff00000) |
1047 | outs() << format(" (%.16e)\n", d); |
1048 | else { |
1049 | if (Hi == 0x7ff00000 && Lo == 0) |
1050 | outs() << " (+Infinity)\n"; |
1051 | else if (Hi == 0xfff00000 && Lo == 0) |
1052 | outs() << " (-Infinity)\n"; |
1053 | else if ((Hi & 0x00080000) == 0x00080000) |
1054 | outs() << " (non-signaling Not-a-Number)\n"; |
1055 | else |
1056 | outs() << " (signaling Not-a-Number)\n"; |
1057 | } |
1058 | } |
1059 | |
1060 | static void DumpLiteral8Section(MachOObjectFile *O, const char *sect, |
1061 | uint32_t sect_size, uint64_t sect_addr, |
1062 | bool print_addresses) { |
1063 | for (uint32_t i = 0; i < sect_size; i += sizeof(double)) { |
1064 | if (print_addresses) { |
1065 | if (O->is64Bit()) |
1066 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
1067 | else |
1068 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
1069 | } |
1070 | double d; |
1071 | memcpy(&d, sect + i, sizeof(double)); |
1072 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1073 | sys::swapByteOrder(d); |
1074 | uint32_t l0, l1; |
1075 | memcpy(&l0, sect + i, sizeof(uint32_t)); |
1076 | memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); |
1077 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
1078 | sys::swapByteOrder(l0); |
1079 | sys::swapByteOrder(l1); |
1080 | } |
1081 | DumpLiteral8(O, l0, l1, d); |
1082 | } |
1083 | } |
1084 | |
1085 | static void DumpLiteral16(uint32_t l0, uint32_t l1, uint32_t l2, uint32_t l3) { |
1086 | outs() << format("0x%08" PRIx32"x", l0) << " "; |
1087 | outs() << format("0x%08" PRIx32"x", l1) << " "; |
1088 | outs() << format("0x%08" PRIx32"x", l2) << " "; |
1089 | outs() << format("0x%08" PRIx32"x", l3) << "\n"; |
1090 | } |
1091 | |
1092 | static void DumpLiteral16Section(MachOObjectFile *O, const char *sect, |
1093 | uint32_t sect_size, uint64_t sect_addr, |
1094 | bool print_addresses) { |
1095 | for (uint32_t i = 0; i < sect_size; i += 16) { |
1096 | if (print_addresses) { |
1097 | if (O->is64Bit()) |
1098 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
1099 | else |
1100 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
1101 | } |
1102 | uint32_t l0, l1, l2, l3; |
1103 | memcpy(&l0, sect + i, sizeof(uint32_t)); |
1104 | memcpy(&l1, sect + i + sizeof(uint32_t), sizeof(uint32_t)); |
1105 | memcpy(&l2, sect + i + 2 * sizeof(uint32_t), sizeof(uint32_t)); |
1106 | memcpy(&l3, sect + i + 3 * sizeof(uint32_t), sizeof(uint32_t)); |
1107 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
1108 | sys::swapByteOrder(l0); |
1109 | sys::swapByteOrder(l1); |
1110 | sys::swapByteOrder(l2); |
1111 | sys::swapByteOrder(l3); |
1112 | } |
1113 | DumpLiteral16(l0, l1, l2, l3); |
1114 | } |
1115 | } |
1116 | |
1117 | static void DumpLiteralPointerSection(MachOObjectFile *O, |
1118 | const SectionRef &Section, |
1119 | const char *sect, uint32_t sect_size, |
1120 | uint64_t sect_addr, |
1121 | bool print_addresses) { |
1122 | // Collect the literal sections in this Mach-O file. |
1123 | std::vector<SectionRef> LiteralSections; |
1124 | for (const SectionRef &Section : O->sections()) { |
1125 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
1126 | uint32_t section_type; |
1127 | if (O->is64Bit()) { |
1128 | const MachO::section_64 Sec = O->getSection64(Ref); |
1129 | section_type = Sec.flags & MachO::SECTION_TYPE; |
1130 | } else { |
1131 | const MachO::section Sec = O->getSection(Ref); |
1132 | section_type = Sec.flags & MachO::SECTION_TYPE; |
1133 | } |
1134 | if (section_type == MachO::S_CSTRING_LITERALS || |
1135 | section_type == MachO::S_4BYTE_LITERALS || |
1136 | section_type == MachO::S_8BYTE_LITERALS || |
1137 | section_type == MachO::S_16BYTE_LITERALS) |
1138 | LiteralSections.push_back(Section); |
1139 | } |
1140 | |
1141 | // Set the size of the literal pointer. |
1142 | uint32_t lp_size = O->is64Bit() ? 8 : 4; |
1143 | |
1144 | // Collect the external relocation symbols for the literal pointers. |
1145 | std::vector<std::pair<uint64_t, SymbolRef>> Relocs; |
1146 | for (const RelocationRef &Reloc : Section.relocations()) { |
1147 | DataRefImpl Rel; |
1148 | MachO::any_relocation_info RE; |
1149 | bool isExtern = false; |
1150 | Rel = Reloc.getRawDataRefImpl(); |
1151 | RE = O->getRelocation(Rel); |
1152 | isExtern = O->getPlainRelocationExternal(RE); |
1153 | if (isExtern) { |
1154 | uint64_t RelocOffset = Reloc.getOffset(); |
1155 | symbol_iterator RelocSym = Reloc.getSymbol(); |
1156 | Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); |
1157 | } |
1158 | } |
1159 | array_pod_sort(Relocs.begin(), Relocs.end()); |
1160 | |
1161 | // Dump each literal pointer. |
1162 | for (uint32_t i = 0; i < sect_size; i += lp_size) { |
1163 | if (print_addresses) { |
1164 | if (O->is64Bit()) |
1165 | outs() << format("%016" PRIx64"l" "x", sect_addr + i) << " "; |
1166 | else |
1167 | outs() << format("%08" PRIx64"l" "x", sect_addr + i) << " "; |
1168 | } |
1169 | uint64_t lp; |
1170 | if (O->is64Bit()) { |
1171 | memcpy(&lp, sect + i, sizeof(uint64_t)); |
1172 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1173 | sys::swapByteOrder(lp); |
1174 | } else { |
1175 | uint32_t li; |
1176 | memcpy(&li, sect + i, sizeof(uint32_t)); |
1177 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1178 | sys::swapByteOrder(li); |
1179 | lp = li; |
1180 | } |
1181 | |
1182 | // First look for an external relocation entry for this literal pointer. |
1183 | auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { |
1184 | return P.first == i; |
1185 | }); |
1186 | if (Reloc != Relocs.end()) { |
1187 | symbol_iterator RelocSym = Reloc->second; |
1188 | Expected<StringRef> SymName = RelocSym->getName(); |
1189 | if (!SymName) |
1190 | report_error(O->getFileName(), SymName.takeError()); |
1191 | outs() << "external relocation entry for symbol:" << *SymName << "\n"; |
1192 | continue; |
1193 | } |
1194 | |
1195 | // For local references see what the section the literal pointer points to. |
1196 | auto Sect = find_if(LiteralSections, [&](const SectionRef &R) { |
1197 | return lp >= R.getAddress() && lp < R.getAddress() + R.getSize(); |
1198 | }); |
1199 | if (Sect == LiteralSections.end()) { |
1200 | outs() << format("0x%" PRIx64"l" "x", lp) << " (not in a literal section)\n"; |
1201 | continue; |
1202 | } |
1203 | |
1204 | uint64_t SectAddress = Sect->getAddress(); |
1205 | uint64_t SectSize = Sect->getSize(); |
1206 | |
1207 | StringRef SectName; |
1208 | Sect->getName(SectName); |
1209 | DataRefImpl Ref = Sect->getRawDataRefImpl(); |
1210 | StringRef SegmentName = O->getSectionFinalSegmentName(Ref); |
1211 | outs() << SegmentName << ":" << SectName << ":"; |
1212 | |
1213 | uint32_t section_type; |
1214 | if (O->is64Bit()) { |
1215 | const MachO::section_64 Sec = O->getSection64(Ref); |
1216 | section_type = Sec.flags & MachO::SECTION_TYPE; |
1217 | } else { |
1218 | const MachO::section Sec = O->getSection(Ref); |
1219 | section_type = Sec.flags & MachO::SECTION_TYPE; |
1220 | } |
1221 | |
1222 | StringRef BytesStr; |
1223 | Sect->getContents(BytesStr); |
1224 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
1225 | |
1226 | switch (section_type) { |
1227 | case MachO::S_CSTRING_LITERALS: |
1228 | for (uint64_t i = lp - SectAddress; i < SectSize && Contents[i] != '\0'; |
1229 | i++) { |
1230 | DumpCstringChar(Contents[i]); |
1231 | } |
1232 | outs() << "\n"; |
1233 | break; |
1234 | case MachO::S_4BYTE_LITERALS: |
1235 | float f; |
1236 | memcpy(&f, Contents + (lp - SectAddress), sizeof(float)); |
1237 | uint32_t l; |
1238 | memcpy(&l, Contents + (lp - SectAddress), sizeof(uint32_t)); |
1239 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
1240 | sys::swapByteOrder(f); |
1241 | sys::swapByteOrder(l); |
1242 | } |
1243 | DumpLiteral4(l, f); |
1244 | break; |
1245 | case MachO::S_8BYTE_LITERALS: { |
1246 | double d; |
1247 | memcpy(&d, Contents + (lp - SectAddress), sizeof(double)); |
1248 | uint32_t l0, l1; |
1249 | memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); |
1250 | memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), |
1251 | sizeof(uint32_t)); |
1252 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
1253 | sys::swapByteOrder(f); |
1254 | sys::swapByteOrder(l0); |
1255 | sys::swapByteOrder(l1); |
1256 | } |
1257 | DumpLiteral8(O, l0, l1, d); |
1258 | break; |
1259 | } |
1260 | case MachO::S_16BYTE_LITERALS: { |
1261 | uint32_t l0, l1, l2, l3; |
1262 | memcpy(&l0, Contents + (lp - SectAddress), sizeof(uint32_t)); |
1263 | memcpy(&l1, Contents + (lp - SectAddress) + sizeof(uint32_t), |
1264 | sizeof(uint32_t)); |
1265 | memcpy(&l2, Contents + (lp - SectAddress) + 2 * sizeof(uint32_t), |
1266 | sizeof(uint32_t)); |
1267 | memcpy(&l3, Contents + (lp - SectAddress) + 3 * sizeof(uint32_t), |
1268 | sizeof(uint32_t)); |
1269 | if (O->isLittleEndian() != sys::IsLittleEndianHost) { |
1270 | sys::swapByteOrder(l0); |
1271 | sys::swapByteOrder(l1); |
1272 | sys::swapByteOrder(l2); |
1273 | sys::swapByteOrder(l3); |
1274 | } |
1275 | DumpLiteral16(l0, l1, l2, l3); |
1276 | break; |
1277 | } |
1278 | } |
1279 | } |
1280 | } |
1281 | |
1282 | static void DumpInitTermPointerSection(MachOObjectFile *O, |
1283 | const SectionRef &Section, |
1284 | const char *sect, |
1285 | uint32_t sect_size, uint64_t sect_addr, |
1286 | SymbolAddressMap *AddrMap, |
1287 | bool verbose) { |
1288 | uint32_t stride; |
1289 | stride = (O->is64Bit()) ? sizeof(uint64_t) : sizeof(uint32_t); |
1290 | |
1291 | // Collect the external relocation symbols for the pointers. |
1292 | std::vector<std::pair<uint64_t, SymbolRef>> Relocs; |
1293 | for (const RelocationRef &Reloc : Section.relocations()) { |
1294 | DataRefImpl Rel; |
1295 | MachO::any_relocation_info RE; |
1296 | bool isExtern = false; |
1297 | Rel = Reloc.getRawDataRefImpl(); |
1298 | RE = O->getRelocation(Rel); |
1299 | isExtern = O->getPlainRelocationExternal(RE); |
1300 | if (isExtern) { |
1301 | uint64_t RelocOffset = Reloc.getOffset(); |
1302 | symbol_iterator RelocSym = Reloc.getSymbol(); |
1303 | Relocs.push_back(std::make_pair(RelocOffset, *RelocSym)); |
1304 | } |
1305 | } |
1306 | array_pod_sort(Relocs.begin(), Relocs.end()); |
1307 | |
1308 | for (uint32_t i = 0; i < sect_size; i += stride) { |
1309 | const char *SymbolName = nullptr; |
1310 | uint64_t p; |
1311 | if (O->is64Bit()) { |
1312 | outs() << format("0x%016" PRIx64"l" "x", sect_addr + i * stride) << " "; |
1313 | uint64_t pointer_value; |
1314 | memcpy(&pointer_value, sect + i, stride); |
1315 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1316 | sys::swapByteOrder(pointer_value); |
1317 | outs() << format("0x%016" PRIx64"l" "x", pointer_value); |
1318 | p = pointer_value; |
1319 | } else { |
1320 | outs() << format("0x%08" PRIx64"l" "x", sect_addr + i * stride) << " "; |
1321 | uint32_t pointer_value; |
1322 | memcpy(&pointer_value, sect + i, stride); |
1323 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1324 | sys::swapByteOrder(pointer_value); |
1325 | outs() << format("0x%08" PRIx32"x", pointer_value); |
1326 | p = pointer_value; |
1327 | } |
1328 | if (verbose) { |
1329 | // First look for an external relocation entry for this pointer. |
1330 | auto Reloc = find_if(Relocs, [&](const std::pair<uint64_t, SymbolRef> &P) { |
1331 | return P.first == i; |
1332 | }); |
1333 | if (Reloc != Relocs.end()) { |
1334 | symbol_iterator RelocSym = Reloc->second; |
1335 | Expected<StringRef> SymName = RelocSym->getName(); |
1336 | if (!SymName) |
1337 | report_error(O->getFileName(), SymName.takeError()); |
1338 | outs() << " " << *SymName; |
1339 | } else { |
1340 | SymbolName = GuessSymbolName(p, AddrMap); |
1341 | if (SymbolName) |
1342 | outs() << " " << SymbolName; |
1343 | } |
1344 | } |
1345 | outs() << "\n"; |
1346 | } |
1347 | } |
1348 | |
1349 | static void DumpRawSectionContents(MachOObjectFile *O, const char *sect, |
1350 | uint32_t size, uint64_t addr) { |
1351 | uint32_t cputype = O->getHeader().cputype; |
1352 | if (cputype == MachO::CPU_TYPE_I386 || cputype == MachO::CPU_TYPE_X86_64) { |
1353 | uint32_t j; |
1354 | for (uint32_t i = 0; i < size; i += j, addr += j) { |
1355 | if (O->is64Bit()) |
1356 | outs() << format("%016" PRIx64"l" "x", addr) << "\t"; |
1357 | else |
1358 | outs() << format("%08" PRIx64"l" "x", addr) << "\t"; |
1359 | for (j = 0; j < 16 && i + j < size; j++) { |
1360 | uint8_t byte_word = *(sect + i + j); |
1361 | outs() << format("%02" PRIx32"x", (uint32_t)byte_word) << " "; |
1362 | } |
1363 | outs() << "\n"; |
1364 | } |
1365 | } else { |
1366 | uint32_t j; |
1367 | for (uint32_t i = 0; i < size; i += j, addr += j) { |
1368 | if (O->is64Bit()) |
1369 | outs() << format("%016" PRIx64"l" "x", addr) << "\t"; |
1370 | else |
1371 | outs() << format("%08" PRIx64"l" "x", addr) << "\t"; |
1372 | for (j = 0; j < 4 * sizeof(int32_t) && i + j < size; |
1373 | j += sizeof(int32_t)) { |
1374 | if (i + j + sizeof(int32_t) <= size) { |
1375 | uint32_t long_word; |
1376 | memcpy(&long_word, sect + i + j, sizeof(int32_t)); |
1377 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
1378 | sys::swapByteOrder(long_word); |
1379 | outs() << format("%08" PRIx32"x", long_word) << " "; |
1380 | } else { |
1381 | for (uint32_t k = 0; i + j + k < size; k++) { |
1382 | uint8_t byte_word = *(sect + i + j + k); |
1383 | outs() << format("%02" PRIx32"x", (uint32_t)byte_word) << " "; |
1384 | } |
1385 | } |
1386 | } |
1387 | outs() << "\n"; |
1388 | } |
1389 | } |
1390 | } |
1391 | |
1392 | static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, |
1393 | StringRef DisSegName, StringRef DisSectName); |
1394 | static void DumpProtocolSection(MachOObjectFile *O, const char *sect, |
1395 | uint32_t size, uint32_t addr); |
1396 | #ifdef HAVE_LIBXAR |
1397 | static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, |
1398 | uint32_t size, bool verbose, |
1399 | bool PrintXarHeader, bool PrintXarFileHeaders, |
1400 | std::string XarMemberName); |
1401 | #endif // defined(HAVE_LIBXAR) |
1402 | |
1403 | static void DumpSectionContents(StringRef Filename, MachOObjectFile *O, |
1404 | bool verbose) { |
1405 | SymbolAddressMap AddrMap; |
1406 | if (verbose) |
1407 | CreateSymbolAddressMap(O, &AddrMap); |
1408 | |
1409 | for (unsigned i = 0; i < FilterSections.size(); ++i) { |
1410 | StringRef DumpSection = FilterSections[i]; |
1411 | std::pair<StringRef, StringRef> DumpSegSectName; |
1412 | DumpSegSectName = DumpSection.split(','); |
1413 | StringRef DumpSegName, DumpSectName; |
1414 | if (DumpSegSectName.second.size()) { |
1415 | DumpSegName = DumpSegSectName.first; |
1416 | DumpSectName = DumpSegSectName.second; |
1417 | } else { |
1418 | DumpSegName = ""; |
1419 | DumpSectName = DumpSegSectName.first; |
1420 | } |
1421 | for (const SectionRef &Section : O->sections()) { |
1422 | StringRef SectName; |
1423 | Section.getName(SectName); |
1424 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
1425 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
1426 | if ((DumpSegName.empty() || SegName == DumpSegName) && |
1427 | (SectName == DumpSectName)) { |
1428 | |
1429 | uint32_t section_flags; |
1430 | if (O->is64Bit()) { |
1431 | const MachO::section_64 Sec = O->getSection64(Ref); |
1432 | section_flags = Sec.flags; |
1433 | |
1434 | } else { |
1435 | const MachO::section Sec = O->getSection(Ref); |
1436 | section_flags = Sec.flags; |
1437 | } |
1438 | uint32_t section_type = section_flags & MachO::SECTION_TYPE; |
1439 | |
1440 | StringRef BytesStr; |
1441 | Section.getContents(BytesStr); |
1442 | const char *sect = reinterpret_cast<const char *>(BytesStr.data()); |
1443 | uint32_t sect_size = BytesStr.size(); |
1444 | uint64_t sect_addr = Section.getAddress(); |
1445 | |
1446 | outs() << "Contents of (" << SegName << "," << SectName |
1447 | << ") section\n"; |
1448 | |
1449 | if (verbose) { |
1450 | if ((section_flags & MachO::S_ATTR_PURE_INSTRUCTIONS) || |
1451 | (section_flags & MachO::S_ATTR_SOME_INSTRUCTIONS)) { |
1452 | DisassembleMachO(Filename, O, SegName, SectName); |
1453 | continue; |
1454 | } |
1455 | if (SegName == "__TEXT" && SectName == "__info_plist") { |
1456 | outs() << sect; |
1457 | continue; |
1458 | } |
1459 | if (SegName == "__OBJC" && SectName == "__protocol") { |
1460 | DumpProtocolSection(O, sect, sect_size, sect_addr); |
1461 | continue; |
1462 | } |
1463 | #ifdef HAVE_LIBXAR |
1464 | if (SegName == "__LLVM" && SectName == "__bundle") { |
1465 | DumpBitcodeSection(O, sect, sect_size, verbose, !NoSymbolicOperands, |
1466 | ArchiveHeaders, ""); |
1467 | continue; |
1468 | } |
1469 | #endif // defined(HAVE_LIBXAR) |
1470 | switch (section_type) { |
1471 | case MachO::S_REGULAR: |
1472 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
1473 | break; |
1474 | case MachO::S_ZEROFILL: |
1475 | outs() << "zerofill section and has no contents in the file\n"; |
1476 | break; |
1477 | case MachO::S_CSTRING_LITERALS: |
1478 | DumpCstringSection(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1479 | break; |
1480 | case MachO::S_4BYTE_LITERALS: |
1481 | DumpLiteral4Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1482 | break; |
1483 | case MachO::S_8BYTE_LITERALS: |
1484 | DumpLiteral8Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1485 | break; |
1486 | case MachO::S_16BYTE_LITERALS: |
1487 | DumpLiteral16Section(O, sect, sect_size, sect_addr, !NoLeadingAddr); |
1488 | break; |
1489 | case MachO::S_LITERAL_POINTERS: |
1490 | DumpLiteralPointerSection(O, Section, sect, sect_size, sect_addr, |
1491 | !NoLeadingAddr); |
1492 | break; |
1493 | case MachO::S_MOD_INIT_FUNC_POINTERS: |
1494 | case MachO::S_MOD_TERM_FUNC_POINTERS: |
1495 | DumpInitTermPointerSection(O, Section, sect, sect_size, sect_addr, |
1496 | &AddrMap, verbose); |
1497 | break; |
1498 | default: |
1499 | outs() << "Unknown section type (" |
1500 | << format("0x%08" PRIx32"x", section_type) << ")\n"; |
1501 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
1502 | break; |
1503 | } |
1504 | } else { |
1505 | if (section_type == MachO::S_ZEROFILL) |
1506 | outs() << "zerofill section and has no contents in the file\n"; |
1507 | else |
1508 | DumpRawSectionContents(O, sect, sect_size, sect_addr); |
1509 | } |
1510 | } |
1511 | } |
1512 | } |
1513 | } |
1514 | |
1515 | static void DumpInfoPlistSectionContents(StringRef Filename, |
1516 | MachOObjectFile *O) { |
1517 | for (const SectionRef &Section : O->sections()) { |
1518 | StringRef SectName; |
1519 | Section.getName(SectName); |
1520 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
1521 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
1522 | if (SegName == "__TEXT" && SectName == "__info_plist") { |
1523 | if (!NoLeadingHeaders) |
1524 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
1525 | StringRef BytesStr; |
1526 | Section.getContents(BytesStr); |
1527 | const char *sect = reinterpret_cast<const char *>(BytesStr.data()); |
1528 | outs() << format("%.*s", BytesStr.size(), sect) << "\n"; |
1529 | return; |
1530 | } |
1531 | } |
1532 | } |
1533 | |
1534 | // checkMachOAndArchFlags() checks to see if the ObjectFile is a Mach-O file |
1535 | // and if it is and there is a list of architecture flags is specified then |
1536 | // check to make sure this Mach-O file is one of those architectures or all |
1537 | // architectures were specified. If not then an error is generated and this |
1538 | // routine returns false. Else it returns true. |
1539 | static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) { |
1540 | auto *MachO = dyn_cast<MachOObjectFile>(O); |
1541 | |
1542 | if (!MachO || ArchAll || ArchFlags.empty()) |
1543 | return true; |
1544 | |
1545 | MachO::mach_header H; |
1546 | MachO::mach_header_64 H_64; |
1547 | Triple T; |
1548 | const char *McpuDefault, *ArchFlag; |
1549 | if (MachO->is64Bit()) { |
1550 | H_64 = MachO->MachOObjectFile::getHeader64(); |
1551 | T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype, |
1552 | &McpuDefault, &ArchFlag); |
1553 | } else { |
1554 | H = MachO->MachOObjectFile::getHeader(); |
1555 | T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype, |
1556 | &McpuDefault, &ArchFlag); |
1557 | } |
1558 | const std::string ArchFlagName(ArchFlag); |
1559 | if (none_of(ArchFlags, [&](const std::string &Name) { |
1560 | return Name == ArchFlagName; |
1561 | })) { |
1562 | errs() << "llvm-objdump: " + Filename + ": No architecture specified.\n"; |
1563 | return false; |
1564 | } |
1565 | return true; |
1566 | } |
1567 | |
1568 | static void printObjcMetaData(MachOObjectFile *O, bool verbose); |
1569 | |
1570 | // ProcessMachO() is passed a single opened Mach-O file, which may be an |
1571 | // archive member and or in a slice of a universal file. It prints the |
1572 | // the file name and header info and then processes it according to the |
1573 | // command line options. |
1574 | static void ProcessMachO(StringRef Name, MachOObjectFile *MachOOF, |
1575 | StringRef ArchiveMemberName = StringRef(), |
1576 | StringRef ArchitectureName = StringRef()) { |
1577 | // If we are doing some processing here on the Mach-O file print the header |
1578 | // info. And don't print it otherwise like in the case of printing the |
1579 | // UniversalHeaders or ArchiveHeaders. |
1580 | if (Disassemble || Relocations || PrivateHeaders || ExportsTrie || Rebase || |
1581 | Bind || SymbolTable || LazyBind || WeakBind || IndirectSymbols || |
1582 | DataInCode || LinkOptHints || DylibsUsed || DylibId || ObjcMetaData || |
1583 | (FilterSections.size() != 0)) { |
1584 | if (!NoLeadingHeaders) { |
1585 | outs() << Name; |
1586 | if (!ArchiveMemberName.empty()) |
1587 | outs() << '(' << ArchiveMemberName << ')'; |
1588 | if (!ArchitectureName.empty()) |
1589 | outs() << " (architecture " << ArchitectureName << ")"; |
1590 | outs() << ":\n"; |
1591 | } |
1592 | } |
1593 | // To use the report_error() form with an ArchiveName and FileName set |
1594 | // these up based on what is passed for Name and ArchiveMemberName. |
1595 | StringRef ArchiveName; |
1596 | StringRef FileName; |
1597 | if (!ArchiveMemberName.empty()) { |
1598 | ArchiveName = Name; |
1599 | FileName = ArchiveMemberName; |
1600 | } else { |
1601 | ArchiveName = StringRef(); |
1602 | FileName = Name; |
1603 | } |
1604 | |
1605 | // If we need the symbol table to do the operation then check it here to |
1606 | // produce a good error message as to where the Mach-O file comes from in |
1607 | // the error message. |
1608 | if (Disassemble || IndirectSymbols || FilterSections.size() != 0 || |
1609 | UnwindInfo) |
1610 | if (Error Err = MachOOF->checkSymbolTable()) |
1611 | report_error(ArchiveName, FileName, std::move(Err), ArchitectureName); |
1612 | |
1613 | if (Disassemble) { |
1614 | if (MachOOF->getHeader().filetype == MachO::MH_KEXT_BUNDLE && |
1615 | MachOOF->getHeader().cputype == MachO::CPU_TYPE_ARM64) |
1616 | DisassembleMachO(FileName, MachOOF, "__TEXT_EXEC", "__text"); |
1617 | else |
1618 | DisassembleMachO(FileName, MachOOF, "__TEXT", "__text"); |
1619 | } |
1620 | if (IndirectSymbols) |
1621 | PrintIndirectSymbols(MachOOF, !NonVerbose); |
1622 | if (DataInCode) |
1623 | PrintDataInCodeTable(MachOOF, !NonVerbose); |
1624 | if (LinkOptHints) |
1625 | PrintLinkOptHints(MachOOF); |
1626 | if (Relocations) |
1627 | PrintRelocations(MachOOF, !NonVerbose); |
1628 | if (SectionHeaders) |
1629 | PrintSectionHeaders(MachOOF); |
1630 | if (SectionContents) |
1631 | PrintSectionContents(MachOOF); |
1632 | if (FilterSections.size() != 0) |
1633 | DumpSectionContents(FileName, MachOOF, !NonVerbose); |
1634 | if (InfoPlist) |
1635 | DumpInfoPlistSectionContents(FileName, MachOOF); |
1636 | if (DylibsUsed) |
1637 | PrintDylibs(MachOOF, false); |
1638 | if (DylibId) |
1639 | PrintDylibs(MachOOF, true); |
1640 | if (SymbolTable) |
1641 | PrintSymbolTable(MachOOF, ArchiveName, ArchitectureName); |
1642 | if (UnwindInfo) |
1643 | printMachOUnwindInfo(MachOOF); |
1644 | if (PrivateHeaders) { |
1645 | printMachOFileHeader(MachOOF); |
1646 | printMachOLoadCommands(MachOOF); |
1647 | } |
1648 | if (FirstPrivateHeader) |
1649 | printMachOFileHeader(MachOOF); |
1650 | if (ObjcMetaData) |
1651 | printObjcMetaData(MachOOF, !NonVerbose); |
1652 | if (ExportsTrie) |
1653 | printExportsTrie(MachOOF); |
1654 | if (Rebase) |
1655 | printRebaseTable(MachOOF); |
1656 | if (Bind) |
1657 | printBindTable(MachOOF); |
1658 | if (LazyBind) |
1659 | printLazyBindTable(MachOOF); |
1660 | if (WeakBind) |
1661 | printWeakBindTable(MachOOF); |
1662 | |
1663 | if (DwarfDumpType != DIDT_Null) { |
1664 | std::unique_ptr<DIContext> DICtx = DWARFContext::create(*MachOOF); |
1665 | // Dump the complete DWARF structure. |
1666 | DIDumpOptions DumpOpts; |
1667 | DumpOpts.DumpType = DwarfDumpType; |
1668 | DICtx->dump(outs(), DumpOpts); |
1669 | } |
1670 | } |
1671 | |
1672 | // printUnknownCPUType() helps print_fat_headers for unknown CPU's. |
1673 | static void printUnknownCPUType(uint32_t cputype, uint32_t cpusubtype) { |
1674 | outs() << " cputype (" << cputype << ")\n"; |
1675 | outs() << " cpusubtype (" << cpusubtype << ")\n"; |
1676 | } |
1677 | |
1678 | // printCPUType() helps print_fat_headers by printing the cputype and |
1679 | // pusubtype (symbolically for the one's it knows about). |
1680 | static void printCPUType(uint32_t cputype, uint32_t cpusubtype) { |
1681 | switch (cputype) { |
1682 | case MachO::CPU_TYPE_I386: |
1683 | switch (cpusubtype) { |
1684 | case MachO::CPU_SUBTYPE_I386_ALL: |
1685 | outs() << " cputype CPU_TYPE_I386\n"; |
1686 | outs() << " cpusubtype CPU_SUBTYPE_I386_ALL\n"; |
1687 | break; |
1688 | default: |
1689 | printUnknownCPUType(cputype, cpusubtype); |
1690 | break; |
1691 | } |
1692 | break; |
1693 | case MachO::CPU_TYPE_X86_64: |
1694 | switch (cpusubtype) { |
1695 | case MachO::CPU_SUBTYPE_X86_64_ALL: |
1696 | outs() << " cputype CPU_TYPE_X86_64\n"; |
1697 | outs() << " cpusubtype CPU_SUBTYPE_X86_64_ALL\n"; |
1698 | break; |
1699 | case MachO::CPU_SUBTYPE_X86_64_H: |
1700 | outs() << " cputype CPU_TYPE_X86_64\n"; |
1701 | outs() << " cpusubtype CPU_SUBTYPE_X86_64_H\n"; |
1702 | break; |
1703 | default: |
1704 | printUnknownCPUType(cputype, cpusubtype); |
1705 | break; |
1706 | } |
1707 | break; |
1708 | case MachO::CPU_TYPE_ARM: |
1709 | switch (cpusubtype) { |
1710 | case MachO::CPU_SUBTYPE_ARM_ALL: |
1711 | outs() << " cputype CPU_TYPE_ARM\n"; |
1712 | outs() << " cpusubtype CPU_SUBTYPE_ARM_ALL\n"; |
1713 | break; |
1714 | case MachO::CPU_SUBTYPE_ARM_V4T: |
1715 | outs() << " cputype CPU_TYPE_ARM\n"; |
1716 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V4T\n"; |
1717 | break; |
1718 | case MachO::CPU_SUBTYPE_ARM_V5TEJ: |
1719 | outs() << " cputype CPU_TYPE_ARM\n"; |
1720 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V5TEJ\n"; |
1721 | break; |
1722 | case MachO::CPU_SUBTYPE_ARM_XSCALE: |
1723 | outs() << " cputype CPU_TYPE_ARM\n"; |
1724 | outs() << " cpusubtype CPU_SUBTYPE_ARM_XSCALE\n"; |
1725 | break; |
1726 | case MachO::CPU_SUBTYPE_ARM_V6: |
1727 | outs() << " cputype CPU_TYPE_ARM\n"; |
1728 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V6\n"; |
1729 | break; |
1730 | case MachO::CPU_SUBTYPE_ARM_V6M: |
1731 | outs() << " cputype CPU_TYPE_ARM\n"; |
1732 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V6M\n"; |
1733 | break; |
1734 | case MachO::CPU_SUBTYPE_ARM_V7: |
1735 | outs() << " cputype CPU_TYPE_ARM\n"; |
1736 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7\n"; |
1737 | break; |
1738 | case MachO::CPU_SUBTYPE_ARM_V7EM: |
1739 | outs() << " cputype CPU_TYPE_ARM\n"; |
1740 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7EM\n"; |
1741 | break; |
1742 | case MachO::CPU_SUBTYPE_ARM_V7K: |
1743 | outs() << " cputype CPU_TYPE_ARM\n"; |
1744 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7K\n"; |
1745 | break; |
1746 | case MachO::CPU_SUBTYPE_ARM_V7M: |
1747 | outs() << " cputype CPU_TYPE_ARM\n"; |
1748 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7M\n"; |
1749 | break; |
1750 | case MachO::CPU_SUBTYPE_ARM_V7S: |
1751 | outs() << " cputype CPU_TYPE_ARM\n"; |
1752 | outs() << " cpusubtype CPU_SUBTYPE_ARM_V7S\n"; |
1753 | break; |
1754 | default: |
1755 | printUnknownCPUType(cputype, cpusubtype); |
1756 | break; |
1757 | } |
1758 | break; |
1759 | case MachO::CPU_TYPE_ARM64: |
1760 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
1761 | case MachO::CPU_SUBTYPE_ARM64_ALL: |
1762 | outs() << " cputype CPU_TYPE_ARM64\n"; |
1763 | outs() << " cpusubtype CPU_SUBTYPE_ARM64_ALL\n"; |
1764 | break; |
1765 | default: |
1766 | printUnknownCPUType(cputype, cpusubtype); |
1767 | break; |
1768 | } |
1769 | break; |
1770 | default: |
1771 | printUnknownCPUType(cputype, cpusubtype); |
1772 | break; |
1773 | } |
1774 | } |
1775 | |
1776 | static void printMachOUniversalHeaders(const object::MachOUniversalBinary *UB, |
1777 | bool verbose) { |
1778 | outs() << "Fat headers\n"; |
1779 | if (verbose) { |
1780 | if (UB->getMagic() == MachO::FAT_MAGIC) |
1781 | outs() << "fat_magic FAT_MAGIC\n"; |
1782 | else // UB->getMagic() == MachO::FAT_MAGIC_64 |
1783 | outs() << "fat_magic FAT_MAGIC_64\n"; |
1784 | } else |
1785 | outs() << "fat_magic " << format("0x%" PRIx32"x", MachO::FAT_MAGIC) << "\n"; |
1786 | |
1787 | uint32_t nfat_arch = UB->getNumberOfObjects(); |
1788 | StringRef Buf = UB->getData(); |
1789 | uint64_t size = Buf.size(); |
1790 | uint64_t big_size = sizeof(struct MachO::fat_header) + |
1791 | nfat_arch * sizeof(struct MachO::fat_arch); |
1792 | outs() << "nfat_arch " << UB->getNumberOfObjects(); |
1793 | if (nfat_arch == 0) |
1794 | outs() << " (malformed, contains zero architecture types)\n"; |
1795 | else if (big_size > size) |
1796 | outs() << " (malformed, architectures past end of file)\n"; |
1797 | else |
1798 | outs() << "\n"; |
1799 | |
1800 | for (uint32_t i = 0; i < nfat_arch; ++i) { |
1801 | MachOUniversalBinary::ObjectForArch OFA(UB, i); |
1802 | uint32_t cputype = OFA.getCPUType(); |
1803 | uint32_t cpusubtype = OFA.getCPUSubType(); |
1804 | outs() << "architecture "; |
1805 | for (uint32_t j = 0; i != 0 && j <= i - 1; j++) { |
1806 | MachOUniversalBinary::ObjectForArch other_OFA(UB, j); |
1807 | uint32_t other_cputype = other_OFA.getCPUType(); |
1808 | uint32_t other_cpusubtype = other_OFA.getCPUSubType(); |
1809 | if (cputype != 0 && cpusubtype != 0 && cputype == other_cputype && |
1810 | (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) == |
1811 | (other_cpusubtype & ~MachO::CPU_SUBTYPE_MASK)) { |
1812 | outs() << "(illegal duplicate architecture) "; |
1813 | break; |
1814 | } |
1815 | } |
1816 | if (verbose) { |
1817 | outs() << OFA.getArchFlagName() << "\n"; |
1818 | printCPUType(cputype, cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
1819 | } else { |
1820 | outs() << i << "\n"; |
1821 | outs() << " cputype " << cputype << "\n"; |
1822 | outs() << " cpusubtype " << (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) |
1823 | << "\n"; |
1824 | } |
1825 | if (verbose && |
1826 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) |
1827 | outs() << " capabilities CPU_SUBTYPE_LIB64\n"; |
1828 | else |
1829 | outs() << " capabilities " |
1830 | << format("0x%" PRIx32"x", |
1831 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24) << "\n"; |
1832 | outs() << " offset " << OFA.getOffset(); |
1833 | if (OFA.getOffset() > size) |
1834 | outs() << " (past end of file)"; |
1835 | if (OFA.getOffset() % (1 << OFA.getAlign()) != 0) |
1836 | outs() << " (not aligned on it's alignment (2^" << OFA.getAlign() << ")"; |
1837 | outs() << "\n"; |
1838 | outs() << " size " << OFA.getSize(); |
1839 | big_size = OFA.getOffset() + OFA.getSize(); |
1840 | if (big_size > size) |
1841 | outs() << " (past end of file)"; |
1842 | outs() << "\n"; |
1843 | outs() << " align 2^" << OFA.getAlign() << " (" << (1 << OFA.getAlign()) |
1844 | << ")\n"; |
1845 | } |
1846 | } |
1847 | |
1848 | static void printArchiveChild(StringRef Filename, const Archive::Child &C, |
1849 | bool verbose, bool print_offset, |
1850 | StringRef ArchitectureName = StringRef()) { |
1851 | if (print_offset) |
1852 | outs() << C.getChildOffset() << "\t"; |
1853 | Expected<sys::fs::perms> ModeOrErr = C.getAccessMode(); |
1854 | if (!ModeOrErr) |
1855 | report_error(Filename, C, ModeOrErr.takeError(), ArchitectureName); |
1856 | sys::fs::perms Mode = ModeOrErr.get(); |
1857 | if (verbose) { |
1858 | // FIXME: this first dash, "-", is for (Mode & S_IFMT) == S_IFREG. |
1859 | // But there is nothing in sys::fs::perms for S_IFMT or S_IFREG. |
1860 | outs() << "-"; |
1861 | outs() << ((Mode & sys::fs::owner_read) ? "r" : "-"); |
1862 | outs() << ((Mode & sys::fs::owner_write) ? "w" : "-"); |
1863 | outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-"); |
1864 | outs() << ((Mode & sys::fs::group_read) ? "r" : "-"); |
1865 | outs() << ((Mode & sys::fs::group_write) ? "w" : "-"); |
1866 | outs() << ((Mode & sys::fs::group_exe) ? "x" : "-"); |
1867 | outs() << ((Mode & sys::fs::others_read) ? "r" : "-"); |
1868 | outs() << ((Mode & sys::fs::others_write) ? "w" : "-"); |
1869 | outs() << ((Mode & sys::fs::others_exe) ? "x" : "-"); |
1870 | } else { |
1871 | outs() << format("0%o ", Mode); |
1872 | } |
1873 | |
1874 | Expected<unsigned> UIDOrErr = C.getUID(); |
1875 | if (!UIDOrErr) |
1876 | report_error(Filename, C, UIDOrErr.takeError(), ArchitectureName); |
1877 | unsigned UID = UIDOrErr.get(); |
1878 | outs() << format("%3d/", UID); |
1879 | Expected<unsigned> GIDOrErr = C.getGID(); |
1880 | if (!GIDOrErr) |
1881 | report_error(Filename, C, GIDOrErr.takeError(), ArchitectureName); |
1882 | unsigned GID = GIDOrErr.get(); |
1883 | outs() << format("%-3d ", GID); |
1884 | Expected<uint64_t> Size = C.getRawSize(); |
1885 | if (!Size) |
1886 | report_error(Filename, C, Size.takeError(), ArchitectureName); |
1887 | outs() << format("%5" PRId64"l" "d", Size.get()) << " "; |
1888 | |
1889 | StringRef RawLastModified = C.getRawLastModified(); |
1890 | if (verbose) { |
1891 | unsigned Seconds; |
1892 | if (RawLastModified.getAsInteger(10, Seconds)) |
1893 | outs() << "(date: \"" << RawLastModified |
1894 | << "\" contains non-decimal chars) "; |
1895 | else { |
1896 | // Since cime(3) returns a 26 character string of the form: |
1897 | // "Sun Sep 16 01:03:52 1973\n\0" |
1898 | // just print 24 characters. |
1899 | time_t t = Seconds; |
1900 | outs() << format("%.24s ", ctime(&t)); |
1901 | } |
1902 | } else { |
1903 | outs() << RawLastModified << " "; |
1904 | } |
1905 | |
1906 | if (verbose) { |
1907 | Expected<StringRef> NameOrErr = C.getName(); |
1908 | if (!NameOrErr) { |
1909 | consumeError(NameOrErr.takeError()); |
1910 | Expected<StringRef> NameOrErr = C.getRawName(); |
1911 | if (!NameOrErr) |
1912 | report_error(Filename, C, NameOrErr.takeError(), ArchitectureName); |
1913 | StringRef RawName = NameOrErr.get(); |
1914 | outs() << RawName << "\n"; |
1915 | } else { |
1916 | StringRef Name = NameOrErr.get(); |
1917 | outs() << Name << "\n"; |
1918 | } |
1919 | } else { |
1920 | Expected<StringRef> NameOrErr = C.getRawName(); |
1921 | if (!NameOrErr) |
1922 | report_error(Filename, C, NameOrErr.takeError(), ArchitectureName); |
1923 | StringRef RawName = NameOrErr.get(); |
1924 | outs() << RawName << "\n"; |
1925 | } |
1926 | } |
1927 | |
1928 | static void printArchiveHeaders(StringRef Filename, Archive *A, bool verbose, |
1929 | bool print_offset, |
1930 | StringRef ArchitectureName = StringRef()) { |
1931 | Error Err = Error::success(); |
1932 | ; |
1933 | for (const auto &C : A->children(Err, false)) |
1934 | printArchiveChild(Filename, C, verbose, print_offset, ArchitectureName); |
1935 | |
1936 | if (Err) |
1937 | report_error(StringRef(), Filename, std::move(Err), ArchitectureName); |
1938 | } |
1939 | |
1940 | static bool ValidateArchFlags() { |
1941 | // Check for -arch all and verifiy the -arch flags are valid. |
1942 | for (unsigned i = 0; i < ArchFlags.size(); ++i) { |
1943 | if (ArchFlags[i] == "all") { |
1944 | ArchAll = true; |
1945 | } else { |
1946 | if (!MachOObjectFile::isValidArch(ArchFlags[i])) { |
1947 | errs() << "llvm-objdump: Unknown architecture named '" + ArchFlags[i] + |
1948 | "'for the -arch option\n"; |
1949 | return false; |
1950 | } |
1951 | } |
1952 | } |
1953 | return true; |
1954 | } |
1955 | |
1956 | // ParseInputMachO() parses the named Mach-O file in Filename and handles the |
1957 | // -arch flags selecting just those slices as specified by them and also parses |
1958 | // archive files. Then for each individual Mach-O file ProcessMachO() is |
1959 | // called to process the file based on the command line options. |
1960 | void llvm::ParseInputMachO(StringRef Filename) { |
1961 | if (!ValidateArchFlags()) |
1962 | return; |
1963 | |
1964 | // Attempt to open the binary. |
1965 | Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename); |
1966 | if (!BinaryOrErr) { |
1967 | if (auto E = isNotObjectErrorInvalidFileType(BinaryOrErr.takeError())) |
1968 | report_error(Filename, std::move(E)); |
1969 | else |
1970 | outs() << Filename << ": is not an object file\n"; |
1971 | return; |
1972 | } |
1973 | Binary &Bin = *BinaryOrErr.get().getBinary(); |
1974 | |
1975 | if (Archive *A = dyn_cast<Archive>(&Bin)) { |
1976 | outs() << "Archive : " << Filename << "\n"; |
1977 | if (ArchiveHeaders) |
1978 | printArchiveHeaders(Filename, A, !NonVerbose, ArchiveMemberOffsets); |
1979 | |
1980 | Error Err = Error::success(); |
1981 | for (auto &C : A->children(Err)) { |
1982 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
1983 | if (!ChildOrErr) { |
1984 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
1985 | report_error(Filename, C, std::move(E)); |
1986 | continue; |
1987 | } |
1988 | if (MachOObjectFile *O = dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { |
1989 | if (!checkMachOAndArchFlags(O, Filename)) |
1990 | return; |
1991 | ProcessMachO(Filename, O, O->getFileName()); |
1992 | } |
1993 | } |
1994 | if (Err) |
1995 | report_error(Filename, std::move(Err)); |
1996 | return; |
1997 | } |
1998 | if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) { |
1999 | ParseInputMachO(UB); |
2000 | return; |
2001 | } |
2002 | if (ObjectFile *O = dyn_cast<ObjectFile>(&Bin)) { |
2003 | if (!checkMachOAndArchFlags(O, Filename)) |
2004 | return; |
2005 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&*O)) |
2006 | ProcessMachO(Filename, MachOOF); |
2007 | else |
2008 | errs() << "llvm-objdump: '" << Filename << "': " |
2009 | << "Object is not a Mach-O file type.\n"; |
2010 | return; |
2011 | } |
2012 | llvm_unreachable("Input object can't be invalid at this point")::llvm::llvm_unreachable_internal("Input object can't be invalid at this point" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/llvm-objdump/MachODump.cpp" , 2012); |
2013 | } |
2014 | |
2015 | void llvm::ParseInputMachO(MachOUniversalBinary *UB) { |
2016 | if (!ValidateArchFlags()) |
2017 | return; |
2018 | |
2019 | auto Filename = UB->getFileName(); |
2020 | |
2021 | if (UniversalHeaders) |
2022 | printMachOUniversalHeaders(UB, !NonVerbose); |
2023 | |
2024 | // If we have a list of architecture flags specified dump only those. |
2025 | if (!ArchAll && ArchFlags.size() != 0) { |
2026 | // Look for a slice in the universal binary that matches each ArchFlag. |
2027 | bool ArchFound; |
2028 | for (unsigned i = 0; i < ArchFlags.size(); ++i) { |
2029 | ArchFound = false; |
2030 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
2031 | E = UB->end_objects(); |
2032 | I != E; ++I) { |
2033 | if (ArchFlags[i] == I->getArchFlagName()) { |
2034 | ArchFound = true; |
2035 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = |
2036 | I->getAsObjectFile(); |
2037 | std::string ArchitectureName = ""; |
2038 | if (ArchFlags.size() > 1) |
2039 | ArchitectureName = I->getArchFlagName(); |
2040 | if (ObjOrErr) { |
2041 | ObjectFile &O = *ObjOrErr.get(); |
2042 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) |
2043 | ProcessMachO(Filename, MachOOF, "", ArchitectureName); |
2044 | } else if (auto E = isNotObjectErrorInvalidFileType( |
2045 | ObjOrErr.takeError())) { |
2046 | report_error(Filename, StringRef(), std::move(E), |
2047 | ArchitectureName); |
2048 | continue; |
2049 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
2050 | I->getAsArchive()) { |
2051 | std::unique_ptr<Archive> &A = *AOrErr; |
2052 | outs() << "Archive : " << Filename; |
2053 | if (!ArchitectureName.empty()) |
2054 | outs() << " (architecture " << ArchitectureName << ")"; |
2055 | outs() << "\n"; |
2056 | if (ArchiveHeaders) |
2057 | printArchiveHeaders(Filename, A.get(), !NonVerbose, |
2058 | ArchiveMemberOffsets, ArchitectureName); |
2059 | Error Err = Error::success(); |
2060 | for (auto &C : A->children(Err)) { |
2061 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
2062 | if (!ChildOrErr) { |
2063 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
2064 | report_error(Filename, C, std::move(E), ArchitectureName); |
2065 | continue; |
2066 | } |
2067 | if (MachOObjectFile *O = |
2068 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) |
2069 | ProcessMachO(Filename, O, O->getFileName(), ArchitectureName); |
2070 | } |
2071 | if (Err) |
2072 | report_error(Filename, std::move(Err)); |
2073 | } else { |
2074 | consumeError(AOrErr.takeError()); |
2075 | error("Mach-O universal file: " + Filename + " for " + |
2076 | "architecture " + StringRef(I->getArchFlagName()) + |
2077 | " is not a Mach-O file or an archive file"); |
2078 | } |
2079 | } |
2080 | } |
2081 | if (!ArchFound) { |
2082 | errs() << "llvm-objdump: file: " + Filename + " does not contain " |
2083 | << "architecture: " + ArchFlags[i] + "\n"; |
2084 | return; |
2085 | } |
2086 | } |
2087 | return; |
2088 | } |
2089 | // No architecture flags were specified so if this contains a slice that |
2090 | // matches the host architecture dump only that. |
2091 | if (!ArchAll) { |
2092 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
2093 | E = UB->end_objects(); |
2094 | I != E; ++I) { |
2095 | if (MachOObjectFile::getHostArch().getArchName() == |
2096 | I->getArchFlagName()) { |
2097 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); |
2098 | std::string ArchiveName; |
2099 | ArchiveName.clear(); |
2100 | if (ObjOrErr) { |
2101 | ObjectFile &O = *ObjOrErr.get(); |
2102 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&O)) |
2103 | ProcessMachO(Filename, MachOOF); |
2104 | } else if (auto E = isNotObjectErrorInvalidFileType( |
2105 | ObjOrErr.takeError())) { |
2106 | report_error(Filename, std::move(E)); |
2107 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
2108 | I->getAsArchive()) { |
2109 | std::unique_ptr<Archive> &A = *AOrErr; |
2110 | outs() << "Archive : " << Filename << "\n"; |
2111 | if (ArchiveHeaders) |
2112 | printArchiveHeaders(Filename, A.get(), !NonVerbose, |
2113 | ArchiveMemberOffsets); |
2114 | Error Err = Error::success(); |
2115 | for (auto &C : A->children(Err)) { |
2116 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
2117 | if (!ChildOrErr) { |
2118 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
2119 | report_error(Filename, C, std::move(E)); |
2120 | continue; |
2121 | } |
2122 | if (MachOObjectFile *O = |
2123 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) |
2124 | ProcessMachO(Filename, O, O->getFileName()); |
2125 | } |
2126 | if (Err) |
2127 | report_error(Filename, std::move(Err)); |
2128 | } else { |
2129 | consumeError(AOrErr.takeError()); |
2130 | error("Mach-O universal file: " + Filename + " for architecture " + |
2131 | StringRef(I->getArchFlagName()) + |
2132 | " is not a Mach-O file or an archive file"); |
2133 | } |
2134 | return; |
2135 | } |
2136 | } |
2137 | } |
2138 | // Either all architectures have been specified or none have been specified |
2139 | // and this does not contain the host architecture so dump all the slices. |
2140 | bool moreThanOneArch = UB->getNumberOfObjects() > 1; |
2141 | for (MachOUniversalBinary::object_iterator I = UB->begin_objects(), |
2142 | E = UB->end_objects(); |
2143 | I != E; ++I) { |
2144 | Expected<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile(); |
2145 | std::string ArchitectureName = ""; |
2146 | if (moreThanOneArch) |
2147 | ArchitectureName = I->getArchFlagName(); |
2148 | if (ObjOrErr) { |
2149 | ObjectFile &Obj = *ObjOrErr.get(); |
2150 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(&Obj)) |
2151 | ProcessMachO(Filename, MachOOF, "", ArchitectureName); |
2152 | } else if (auto E = isNotObjectErrorInvalidFileType( |
2153 | ObjOrErr.takeError())) { |
2154 | report_error(StringRef(), Filename, std::move(E), ArchitectureName); |
2155 | } else if (Expected<std::unique_ptr<Archive>> AOrErr = |
2156 | I->getAsArchive()) { |
2157 | std::unique_ptr<Archive> &A = *AOrErr; |
2158 | outs() << "Archive : " << Filename; |
2159 | if (!ArchitectureName.empty()) |
2160 | outs() << " (architecture " << ArchitectureName << ")"; |
2161 | outs() << "\n"; |
2162 | if (ArchiveHeaders) |
2163 | printArchiveHeaders(Filename, A.get(), !NonVerbose, |
2164 | ArchiveMemberOffsets, ArchitectureName); |
2165 | Error Err = Error::success(); |
2166 | for (auto &C : A->children(Err)) { |
2167 | Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(); |
2168 | if (!ChildOrErr) { |
2169 | if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError())) |
2170 | report_error(Filename, C, std::move(E), ArchitectureName); |
2171 | continue; |
2172 | } |
2173 | if (MachOObjectFile *O = |
2174 | dyn_cast<MachOObjectFile>(&*ChildOrErr.get())) { |
2175 | if (MachOObjectFile *MachOOF = dyn_cast<MachOObjectFile>(O)) |
2176 | ProcessMachO(Filename, MachOOF, MachOOF->getFileName(), |
2177 | ArchitectureName); |
2178 | } |
2179 | } |
2180 | if (Err) |
2181 | report_error(Filename, std::move(Err)); |
2182 | } else { |
2183 | consumeError(AOrErr.takeError()); |
2184 | error("Mach-O universal file: " + Filename + " for architecture " + |
2185 | StringRef(I->getArchFlagName()) + |
2186 | " is not a Mach-O file or an archive file"); |
2187 | } |
2188 | } |
2189 | } |
2190 | |
2191 | // The block of info used by the Symbolizer call backs. |
2192 | struct DisassembleInfo { |
2193 | DisassembleInfo(MachOObjectFile *O, SymbolAddressMap *AddrMap, |
2194 | std::vector<SectionRef> *Sections, bool verbose) |
2195 | : verbose(verbose), O(O), AddrMap(AddrMap), Sections(Sections) {} |
2196 | bool verbose; |
2197 | MachOObjectFile *O; |
2198 | SectionRef S; |
2199 | SymbolAddressMap *AddrMap; |
2200 | std::vector<SectionRef> *Sections; |
2201 | const char *class_name = nullptr; |
2202 | const char *selector_name = nullptr; |
2203 | std::unique_ptr<char[]> method = nullptr; |
2204 | char *demangled_name = nullptr; |
2205 | uint64_t adrp_addr = 0; |
2206 | uint32_t adrp_inst = 0; |
2207 | std::unique_ptr<SymbolAddressMap> bindtable; |
2208 | uint32_t depth = 0; |
2209 | }; |
2210 | |
2211 | // SymbolizerGetOpInfo() is the operand information call back function. |
2212 | // This is called to get the symbolic information for operand(s) of an |
2213 | // instruction when it is being done. This routine does this from |
2214 | // the relocation information, symbol table, etc. That block of information |
2215 | // is a pointer to the struct DisassembleInfo that was passed when the |
2216 | // disassembler context was created and passed to back to here when |
2217 | // called back by the disassembler for instruction operands that could have |
2218 | // relocation information. The address of the instruction containing operand is |
2219 | // at the Pc parameter. The immediate value the operand has is passed in |
2220 | // op_info->Value and is at Offset past the start of the instruction and has a |
2221 | // byte Size of 1, 2 or 4. The symbolc information is returned in TagBuf is the |
2222 | // LLVMOpInfo1 struct defined in the header "llvm-c/Disassembler.h" as symbol |
2223 | // names and addends of the symbolic expression to add for the operand. The |
2224 | // value of TagType is currently 1 (for the LLVMOpInfo1 struct). If symbolic |
2225 | // information is returned then this function returns 1 else it returns 0. |
2226 | static int SymbolizerGetOpInfo(void *DisInfo, uint64_t Pc, uint64_t Offset, |
2227 | uint64_t Size, int TagType, void *TagBuf) { |
2228 | struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; |
2229 | struct LLVMOpInfo1 *op_info = (struct LLVMOpInfo1 *)TagBuf; |
2230 | uint64_t value = op_info->Value; |
2231 | |
2232 | // Make sure all fields returned are zero if we don't set them. |
2233 | memset((void *)op_info, '\0', sizeof(struct LLVMOpInfo1)); |
2234 | op_info->Value = value; |
2235 | |
2236 | // If the TagType is not the value 1 which it code knows about or if no |
2237 | // verbose symbolic information is wanted then just return 0, indicating no |
2238 | // information is being returned. |
2239 | if (TagType != 1 || !info->verbose) |
2240 | return 0; |
2241 | |
2242 | unsigned int Arch = info->O->getArch(); |
2243 | if (Arch == Triple::x86) { |
2244 | if (Size != 1 && Size != 2 && Size != 4 && Size != 0) |
2245 | return 0; |
2246 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
2247 | // TODO: |
2248 | // Search the external relocation entries of a fully linked image |
2249 | // (if any) for an entry that matches this segment offset. |
2250 | // uint32_t seg_offset = (Pc + Offset); |
2251 | return 0; |
2252 | } |
2253 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
2254 | // for an entry for this section offset. |
2255 | uint32_t sect_addr = info->S.getAddress(); |
2256 | uint32_t sect_offset = (Pc + Offset) - sect_addr; |
2257 | bool reloc_found = false; |
2258 | DataRefImpl Rel; |
2259 | MachO::any_relocation_info RE; |
2260 | bool isExtern = false; |
2261 | SymbolRef Symbol; |
2262 | bool r_scattered = false; |
2263 | uint32_t r_value, pair_r_value, r_type; |
2264 | for (const RelocationRef &Reloc : info->S.relocations()) { |
2265 | uint64_t RelocOffset = Reloc.getOffset(); |
2266 | if (RelocOffset == sect_offset) { |
2267 | Rel = Reloc.getRawDataRefImpl(); |
2268 | RE = info->O->getRelocation(Rel); |
2269 | r_type = info->O->getAnyRelocationType(RE); |
2270 | r_scattered = info->O->isRelocationScattered(RE); |
2271 | if (r_scattered) { |
2272 | r_value = info->O->getScatteredRelocationValue(RE); |
2273 | if (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
2274 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF) { |
2275 | DataRefImpl RelNext = Rel; |
2276 | info->O->moveRelocationNext(RelNext); |
2277 | MachO::any_relocation_info RENext; |
2278 | RENext = info->O->getRelocation(RelNext); |
2279 | if (info->O->isRelocationScattered(RENext)) |
2280 | pair_r_value = info->O->getScatteredRelocationValue(RENext); |
2281 | else |
2282 | return 0; |
2283 | } |
2284 | } else { |
2285 | isExtern = info->O->getPlainRelocationExternal(RE); |
2286 | if (isExtern) { |
2287 | symbol_iterator RelocSym = Reloc.getSymbol(); |
2288 | Symbol = *RelocSym; |
2289 | } |
2290 | } |
2291 | reloc_found = true; |
2292 | break; |
2293 | } |
2294 | } |
2295 | if (reloc_found && isExtern) { |
2296 | Expected<StringRef> SymName = Symbol.getName(); |
2297 | if (!SymName) |
2298 | report_error(info->O->getFileName(), SymName.takeError()); |
2299 | const char *name = SymName->data(); |
2300 | op_info->AddSymbol.Present = 1; |
2301 | op_info->AddSymbol.Name = name; |
2302 | // For i386 extern relocation entries the value in the instruction is |
2303 | // the offset from the symbol, and value is already set in op_info->Value. |
2304 | return 1; |
2305 | } |
2306 | if (reloc_found && (r_type == MachO::GENERIC_RELOC_SECTDIFF || |
2307 | r_type == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)) { |
2308 | const char *add = GuessSymbolName(r_value, info->AddrMap); |
2309 | const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); |
2310 | uint32_t offset = value - (r_value - pair_r_value); |
2311 | op_info->AddSymbol.Present = 1; |
2312 | if (add != nullptr) |
2313 | op_info->AddSymbol.Name = add; |
2314 | else |
2315 | op_info->AddSymbol.Value = r_value; |
2316 | op_info->SubtractSymbol.Present = 1; |
2317 | if (sub != nullptr) |
2318 | op_info->SubtractSymbol.Name = sub; |
2319 | else |
2320 | op_info->SubtractSymbol.Value = pair_r_value; |
2321 | op_info->Value = offset; |
2322 | return 1; |
2323 | } |
2324 | return 0; |
2325 | } |
2326 | if (Arch == Triple::x86_64) { |
2327 | if (Size != 1 && Size != 2 && Size != 4 && Size != 0) |
2328 | return 0; |
2329 | // For non MH_OBJECT types, like MH_KEXT_BUNDLE, Search the external |
2330 | // relocation entries of a linked image (if any) for an entry that matches |
2331 | // this segment offset. |
2332 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
2333 | uint64_t seg_offset = Pc + Offset; |
2334 | bool reloc_found = false; |
2335 | DataRefImpl Rel; |
2336 | MachO::any_relocation_info RE; |
2337 | bool isExtern = false; |
2338 | SymbolRef Symbol; |
2339 | for (const RelocationRef &Reloc : info->O->external_relocations()) { |
2340 | uint64_t RelocOffset = Reloc.getOffset(); |
2341 | if (RelocOffset == seg_offset) { |
2342 | Rel = Reloc.getRawDataRefImpl(); |
2343 | RE = info->O->getRelocation(Rel); |
2344 | // external relocation entries should always be external. |
2345 | isExtern = info->O->getPlainRelocationExternal(RE); |
2346 | if (isExtern) { |
2347 | symbol_iterator RelocSym = Reloc.getSymbol(); |
2348 | Symbol = *RelocSym; |
2349 | } |
2350 | reloc_found = true; |
2351 | break; |
2352 | } |
2353 | } |
2354 | if (reloc_found && isExtern) { |
2355 | // The Value passed in will be adjusted by the Pc if the instruction |
2356 | // adds the Pc. But for x86_64 external relocation entries the Value |
2357 | // is the offset from the external symbol. |
2358 | if (info->O->getAnyRelocationPCRel(RE)) |
2359 | op_info->Value -= Pc + Offset + Size; |
2360 | Expected<StringRef> SymName = Symbol.getName(); |
2361 | if (!SymName) |
2362 | report_error(info->O->getFileName(), SymName.takeError()); |
2363 | const char *name = SymName->data(); |
2364 | op_info->AddSymbol.Present = 1; |
2365 | op_info->AddSymbol.Name = name; |
2366 | return 1; |
2367 | } |
2368 | return 0; |
2369 | } |
2370 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
2371 | // for an entry for this section offset. |
2372 | uint64_t sect_addr = info->S.getAddress(); |
2373 | uint64_t sect_offset = (Pc + Offset) - sect_addr; |
2374 | bool reloc_found = false; |
2375 | DataRefImpl Rel; |
2376 | MachO::any_relocation_info RE; |
2377 | bool isExtern = false; |
2378 | SymbolRef Symbol; |
2379 | for (const RelocationRef &Reloc : info->S.relocations()) { |
2380 | uint64_t RelocOffset = Reloc.getOffset(); |
2381 | if (RelocOffset == sect_offset) { |
2382 | Rel = Reloc.getRawDataRefImpl(); |
2383 | RE = info->O->getRelocation(Rel); |
2384 | // NOTE: Scattered relocations don't exist on x86_64. |
2385 | isExtern = info->O->getPlainRelocationExternal(RE); |
2386 | if (isExtern) { |
2387 | symbol_iterator RelocSym = Reloc.getSymbol(); |
2388 | Symbol = *RelocSym; |
2389 | } |
2390 | reloc_found = true; |
2391 | break; |
2392 | } |
2393 | } |
2394 | if (reloc_found && isExtern) { |
2395 | // The Value passed in will be adjusted by the Pc if the instruction |
2396 | // adds the Pc. But for x86_64 external relocation entries the Value |
2397 | // is the offset from the external symbol. |
2398 | if (info->O->getAnyRelocationPCRel(RE)) |
2399 | op_info->Value -= Pc + Offset + Size; |
2400 | Expected<StringRef> SymName = Symbol.getName(); |
2401 | if (!SymName) |
2402 | report_error(info->O->getFileName(), SymName.takeError()); |
2403 | const char *name = SymName->data(); |
2404 | unsigned Type = info->O->getAnyRelocationType(RE); |
2405 | if (Type == MachO::X86_64_RELOC_SUBTRACTOR) { |
2406 | DataRefImpl RelNext = Rel; |
2407 | info->O->moveRelocationNext(RelNext); |
2408 | MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); |
2409 | unsigned TypeNext = info->O->getAnyRelocationType(RENext); |
2410 | bool isExternNext = info->O->getPlainRelocationExternal(RENext); |
2411 | unsigned SymbolNum = info->O->getPlainRelocationSymbolNum(RENext); |
2412 | if (TypeNext == MachO::X86_64_RELOC_UNSIGNED && isExternNext) { |
2413 | op_info->SubtractSymbol.Present = 1; |
2414 | op_info->SubtractSymbol.Name = name; |
2415 | symbol_iterator RelocSymNext = info->O->getSymbolByIndex(SymbolNum); |
2416 | Symbol = *RelocSymNext; |
2417 | Expected<StringRef> SymNameNext = Symbol.getName(); |
2418 | if (!SymNameNext) |
2419 | report_error(info->O->getFileName(), SymNameNext.takeError()); |
2420 | name = SymNameNext->data(); |
2421 | } |
2422 | } |
2423 | // TODO: add the VariantKinds to op_info->VariantKind for relocation types |
2424 | // like: X86_64_RELOC_TLV, X86_64_RELOC_GOT_LOAD and X86_64_RELOC_GOT. |
2425 | op_info->AddSymbol.Present = 1; |
2426 | op_info->AddSymbol.Name = name; |
2427 | return 1; |
2428 | } |
2429 | return 0; |
2430 | } |
2431 | if (Arch == Triple::arm) { |
2432 | if (Offset != 0 || (Size != 4 && Size != 2)) |
2433 | return 0; |
2434 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
2435 | // TODO: |
2436 | // Search the external relocation entries of a fully linked image |
2437 | // (if any) for an entry that matches this segment offset. |
2438 | // uint32_t seg_offset = (Pc + Offset); |
2439 | return 0; |
2440 | } |
2441 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
2442 | // for an entry for this section offset. |
2443 | uint32_t sect_addr = info->S.getAddress(); |
2444 | uint32_t sect_offset = (Pc + Offset) - sect_addr; |
2445 | DataRefImpl Rel; |
2446 | MachO::any_relocation_info RE; |
2447 | bool isExtern = false; |
2448 | SymbolRef Symbol; |
2449 | bool r_scattered = false; |
2450 | uint32_t r_value, pair_r_value, r_type, r_length, other_half; |
2451 | auto Reloc = |
2452 | find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { |
2453 | uint64_t RelocOffset = Reloc.getOffset(); |
2454 | return RelocOffset == sect_offset; |
2455 | }); |
2456 | |
2457 | if (Reloc == info->S.relocations().end()) |
2458 | return 0; |
2459 | |
2460 | Rel = Reloc->getRawDataRefImpl(); |
2461 | RE = info->O->getRelocation(Rel); |
2462 | r_length = info->O->getAnyRelocationLength(RE); |
2463 | r_scattered = info->O->isRelocationScattered(RE); |
2464 | if (r_scattered) { |
2465 | r_value = info->O->getScatteredRelocationValue(RE); |
2466 | r_type = info->O->getScatteredRelocationType(RE); |
2467 | } else { |
2468 | r_type = info->O->getAnyRelocationType(RE); |
2469 | isExtern = info->O->getPlainRelocationExternal(RE); |
2470 | if (isExtern) { |
2471 | symbol_iterator RelocSym = Reloc->getSymbol(); |
2472 | Symbol = *RelocSym; |
2473 | } |
2474 | } |
2475 | if (r_type == MachO::ARM_RELOC_HALF || |
2476 | r_type == MachO::ARM_RELOC_SECTDIFF || |
2477 | r_type == MachO::ARM_RELOC_LOCAL_SECTDIFF || |
2478 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
2479 | DataRefImpl RelNext = Rel; |
2480 | info->O->moveRelocationNext(RelNext); |
2481 | MachO::any_relocation_info RENext; |
2482 | RENext = info->O->getRelocation(RelNext); |
2483 | other_half = info->O->getAnyRelocationAddress(RENext) & 0xffff; |
2484 | if (info->O->isRelocationScattered(RENext)) |
2485 | pair_r_value = info->O->getScatteredRelocationValue(RENext); |
2486 | } |
2487 | |
2488 | if (isExtern) { |
2489 | Expected<StringRef> SymName = Symbol.getName(); |
2490 | if (!SymName) |
2491 | report_error(info->O->getFileName(), SymName.takeError()); |
2492 | const char *name = SymName->data(); |
2493 | op_info->AddSymbol.Present = 1; |
2494 | op_info->AddSymbol.Name = name; |
2495 | switch (r_type) { |
2496 | case MachO::ARM_RELOC_HALF: |
2497 | if ((r_length & 0x1) == 1) { |
2498 | op_info->Value = value << 16 | other_half; |
2499 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
2500 | } else { |
2501 | op_info->Value = other_half << 16 | value; |
2502 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
2503 | } |
2504 | break; |
2505 | default: |
2506 | break; |
2507 | } |
2508 | return 1; |
2509 | } |
2510 | // If we have a branch that is not an external relocation entry then |
2511 | // return 0 so the code in tryAddingSymbolicOperand() can use the |
2512 | // SymbolLookUp call back with the branch target address to look up the |
2513 | // symbol and possibility add an annotation for a symbol stub. |
2514 | if (isExtern == 0 && (r_type == MachO::ARM_RELOC_BR24 || |
2515 | r_type == MachO::ARM_THUMB_RELOC_BR22)) |
2516 | return 0; |
2517 | |
2518 | uint32_t offset = 0; |
2519 | if (r_type == MachO::ARM_RELOC_HALF || |
2520 | r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
2521 | if ((r_length & 0x1) == 1) |
2522 | value = value << 16 | other_half; |
2523 | else |
2524 | value = other_half << 16 | value; |
2525 | } |
2526 | if (r_scattered && (r_type != MachO::ARM_RELOC_HALF && |
2527 | r_type != MachO::ARM_RELOC_HALF_SECTDIFF)) { |
2528 | offset = value - r_value; |
2529 | value = r_value; |
2530 | } |
2531 | |
2532 | if (r_type == MachO::ARM_RELOC_HALF_SECTDIFF) { |
2533 | if ((r_length & 0x1) == 1) |
2534 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
2535 | else |
2536 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
2537 | const char *add = GuessSymbolName(r_value, info->AddrMap); |
2538 | const char *sub = GuessSymbolName(pair_r_value, info->AddrMap); |
2539 | int32_t offset = value - (r_value - pair_r_value); |
2540 | op_info->AddSymbol.Present = 1; |
2541 | if (add != nullptr) |
2542 | op_info->AddSymbol.Name = add; |
2543 | else |
2544 | op_info->AddSymbol.Value = r_value; |
2545 | op_info->SubtractSymbol.Present = 1; |
2546 | if (sub != nullptr) |
2547 | op_info->SubtractSymbol.Name = sub; |
2548 | else |
2549 | op_info->SubtractSymbol.Value = pair_r_value; |
2550 | op_info->Value = offset; |
2551 | return 1; |
2552 | } |
2553 | |
2554 | op_info->AddSymbol.Present = 1; |
2555 | op_info->Value = offset; |
2556 | if (r_type == MachO::ARM_RELOC_HALF) { |
2557 | if ((r_length & 0x1) == 1) |
2558 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_HI161; |
2559 | else |
2560 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM_LO162; |
2561 | } |
2562 | const char *add = GuessSymbolName(value, info->AddrMap); |
2563 | if (add != nullptr) { |
2564 | op_info->AddSymbol.Name = add; |
2565 | return 1; |
2566 | } |
2567 | op_info->AddSymbol.Value = value; |
2568 | return 1; |
2569 | } |
2570 | if (Arch == Triple::aarch64) { |
2571 | if (Offset != 0 || Size != 4) |
2572 | return 0; |
2573 | if (info->O->getHeader().filetype != MachO::MH_OBJECT) { |
2574 | // TODO: |
2575 | // Search the external relocation entries of a fully linked image |
2576 | // (if any) for an entry that matches this segment offset. |
2577 | // uint64_t seg_offset = (Pc + Offset); |
2578 | return 0; |
2579 | } |
2580 | // In MH_OBJECT filetypes search the section's relocation entries (if any) |
2581 | // for an entry for this section offset. |
2582 | uint64_t sect_addr = info->S.getAddress(); |
2583 | uint64_t sect_offset = (Pc + Offset) - sect_addr; |
2584 | auto Reloc = |
2585 | find_if(info->S.relocations(), [&](const RelocationRef &Reloc) { |
2586 | uint64_t RelocOffset = Reloc.getOffset(); |
2587 | return RelocOffset == sect_offset; |
2588 | }); |
2589 | |
2590 | if (Reloc == info->S.relocations().end()) |
2591 | return 0; |
2592 | |
2593 | DataRefImpl Rel = Reloc->getRawDataRefImpl(); |
2594 | MachO::any_relocation_info RE = info->O->getRelocation(Rel); |
2595 | uint32_t r_type = info->O->getAnyRelocationType(RE); |
2596 | if (r_type == MachO::ARM64_RELOC_ADDEND) { |
2597 | DataRefImpl RelNext = Rel; |
2598 | info->O->moveRelocationNext(RelNext); |
2599 | MachO::any_relocation_info RENext = info->O->getRelocation(RelNext); |
2600 | if (value == 0) { |
2601 | value = info->O->getPlainRelocationSymbolNum(RENext); |
2602 | op_info->Value = value; |
2603 | } |
2604 | } |
2605 | // NOTE: Scattered relocations don't exist on arm64. |
2606 | if (!info->O->getPlainRelocationExternal(RE)) |
2607 | return 0; |
2608 | Expected<StringRef> SymName = Reloc->getSymbol()->getName(); |
2609 | if (!SymName) |
2610 | report_error(info->O->getFileName(), SymName.takeError()); |
2611 | const char *name = SymName->data(); |
2612 | op_info->AddSymbol.Present = 1; |
2613 | op_info->AddSymbol.Name = name; |
2614 | |
2615 | switch (r_type) { |
2616 | case MachO::ARM64_RELOC_PAGE21: |
2617 | /* @page */ |
2618 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGE1; |
2619 | break; |
2620 | case MachO::ARM64_RELOC_PAGEOFF12: |
2621 | /* @pageoff */ |
2622 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_PAGEOFF2; |
2623 | break; |
2624 | case MachO::ARM64_RELOC_GOT_LOAD_PAGE21: |
2625 | /* @gotpage */ |
2626 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGE3; |
2627 | break; |
2628 | case MachO::ARM64_RELOC_GOT_LOAD_PAGEOFF12: |
2629 | /* @gotpageoff */ |
2630 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF4; |
2631 | break; |
2632 | case MachO::ARM64_RELOC_TLVP_LOAD_PAGE21: |
2633 | /* @tvlppage is not implemented in llvm-mc */ |
2634 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVP5; |
2635 | break; |
2636 | case MachO::ARM64_RELOC_TLVP_LOAD_PAGEOFF12: |
2637 | /* @tvlppageoff is not implemented in llvm-mc */ |
2638 | op_info->VariantKind = LLVMDisassembler_VariantKind_ARM64_TLVOFF6; |
2639 | break; |
2640 | default: |
2641 | case MachO::ARM64_RELOC_BRANCH26: |
2642 | op_info->VariantKind = LLVMDisassembler_VariantKind_None0; |
2643 | break; |
2644 | } |
2645 | return 1; |
2646 | } |
2647 | return 0; |
2648 | } |
2649 | |
2650 | // GuessCstringPointer is passed the address of what might be a pointer to a |
2651 | // literal string in a cstring section. If that address is in a cstring section |
2652 | // it returns a pointer to that string. Else it returns nullptr. |
2653 | static const char *GuessCstringPointer(uint64_t ReferenceValue, |
2654 | struct DisassembleInfo *info) { |
2655 | for (const auto &Load : info->O->load_commands()) { |
2656 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
2657 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
2658 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2659 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
2660 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2661 | if (section_type == MachO::S_CSTRING_LITERALS && |
2662 | ReferenceValue >= Sec.addr && |
2663 | ReferenceValue < Sec.addr + Sec.size) { |
2664 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
2665 | uint64_t object_offset = Sec.offset + sect_offset; |
2666 | StringRef MachOContents = info->O->getData(); |
2667 | uint64_t object_size = MachOContents.size(); |
2668 | const char *object_addr = (const char *)MachOContents.data(); |
2669 | if (object_offset < object_size) { |
2670 | const char *name = object_addr + object_offset; |
2671 | return name; |
2672 | } else { |
2673 | return nullptr; |
2674 | } |
2675 | } |
2676 | } |
2677 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
2678 | MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); |
2679 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2680 | MachO::section Sec = info->O->getSection(Load, J); |
2681 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2682 | if (section_type == MachO::S_CSTRING_LITERALS && |
2683 | ReferenceValue >= Sec.addr && |
2684 | ReferenceValue < Sec.addr + Sec.size) { |
2685 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
2686 | uint64_t object_offset = Sec.offset + sect_offset; |
2687 | StringRef MachOContents = info->O->getData(); |
2688 | uint64_t object_size = MachOContents.size(); |
2689 | const char *object_addr = (const char *)MachOContents.data(); |
2690 | if (object_offset < object_size) { |
2691 | const char *name = object_addr + object_offset; |
2692 | return name; |
2693 | } else { |
2694 | return nullptr; |
2695 | } |
2696 | } |
2697 | } |
2698 | } |
2699 | } |
2700 | return nullptr; |
2701 | } |
2702 | |
2703 | // GuessIndirectSymbol returns the name of the indirect symbol for the |
2704 | // ReferenceValue passed in or nullptr. This is used when ReferenceValue maybe |
2705 | // an address of a symbol stub or a lazy or non-lazy pointer to associate the |
2706 | // symbol name being referenced by the stub or pointer. |
2707 | static const char *GuessIndirectSymbol(uint64_t ReferenceValue, |
2708 | struct DisassembleInfo *info) { |
2709 | MachO::dysymtab_command Dysymtab = info->O->getDysymtabLoadCommand(); |
2710 | MachO::symtab_command Symtab = info->O->getSymtabLoadCommand(); |
2711 | for (const auto &Load : info->O->load_commands()) { |
2712 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
2713 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
2714 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2715 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
2716 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2717 | if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
2718 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
2719 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
2720 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
2721 | section_type == MachO::S_SYMBOL_STUBS) && |
2722 | ReferenceValue >= Sec.addr && |
2723 | ReferenceValue < Sec.addr + Sec.size) { |
2724 | uint32_t stride; |
2725 | if (section_type == MachO::S_SYMBOL_STUBS) |
2726 | stride = Sec.reserved2; |
2727 | else |
2728 | stride = 8; |
2729 | if (stride == 0) |
2730 | return nullptr; |
2731 | uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; |
2732 | if (index < Dysymtab.nindirectsyms) { |
2733 | uint32_t indirect_symbol = |
2734 | info->O->getIndirectSymbolTableEntry(Dysymtab, index); |
2735 | if (indirect_symbol < Symtab.nsyms) { |
2736 | symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); |
2737 | SymbolRef Symbol = *Sym; |
2738 | Expected<StringRef> SymName = Symbol.getName(); |
2739 | if (!SymName) |
2740 | report_error(info->O->getFileName(), SymName.takeError()); |
2741 | const char *name = SymName->data(); |
2742 | return name; |
2743 | } |
2744 | } |
2745 | } |
2746 | } |
2747 | } else if (Load.C.cmd == MachO::LC_SEGMENT) { |
2748 | MachO::segment_command Seg = info->O->getSegmentLoadCommand(Load); |
2749 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2750 | MachO::section Sec = info->O->getSection(Load, J); |
2751 | uint32_t section_type = Sec.flags & MachO::SECTION_TYPE; |
2752 | if ((section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
2753 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
2754 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
2755 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS || |
2756 | section_type == MachO::S_SYMBOL_STUBS) && |
2757 | ReferenceValue >= Sec.addr && |
2758 | ReferenceValue < Sec.addr + Sec.size) { |
2759 | uint32_t stride; |
2760 | if (section_type == MachO::S_SYMBOL_STUBS) |
2761 | stride = Sec.reserved2; |
2762 | else |
2763 | stride = 4; |
2764 | if (stride == 0) |
2765 | return nullptr; |
2766 | uint32_t index = Sec.reserved1 + (ReferenceValue - Sec.addr) / stride; |
2767 | if (index < Dysymtab.nindirectsyms) { |
2768 | uint32_t indirect_symbol = |
2769 | info->O->getIndirectSymbolTableEntry(Dysymtab, index); |
2770 | if (indirect_symbol < Symtab.nsyms) { |
2771 | symbol_iterator Sym = info->O->getSymbolByIndex(indirect_symbol); |
2772 | SymbolRef Symbol = *Sym; |
2773 | Expected<StringRef> SymName = Symbol.getName(); |
2774 | if (!SymName) |
2775 | report_error(info->O->getFileName(), SymName.takeError()); |
2776 | const char *name = SymName->data(); |
2777 | return name; |
2778 | } |
2779 | } |
2780 | } |
2781 | } |
2782 | } |
2783 | } |
2784 | return nullptr; |
2785 | } |
2786 | |
2787 | // method_reference() is called passing it the ReferenceName that might be |
2788 | // a reference it to an Objective-C method call. If so then it allocates and |
2789 | // assembles a method call string with the values last seen and saved in |
2790 | // the DisassembleInfo's class_name and selector_name fields. This is saved |
2791 | // into the method field of the info and any previous string is free'ed. |
2792 | // Then the class_name field in the info is set to nullptr. The method call |
2793 | // string is set into ReferenceName and ReferenceType is set to |
2794 | // LLVMDisassembler_ReferenceType_Out_Objc_Message. If this not a method call |
2795 | // then both ReferenceType and ReferenceName are left unchanged. |
2796 | static void method_reference(struct DisassembleInfo *info, |
2797 | uint64_t *ReferenceType, |
2798 | const char **ReferenceName) { |
2799 | unsigned int Arch = info->O->getArch(); |
2800 | if (*ReferenceName != nullptr) { |
2801 | if (strcmp(*ReferenceName, "_objc_msgSend") == 0) { |
2802 | if (info->selector_name != nullptr) { |
2803 | if (info->class_name != nullptr) { |
2804 | info->method = llvm::make_unique<char[]>( |
2805 | 5 + strlen(info->class_name) + strlen(info->selector_name)); |
2806 | char *method = info->method.get(); |
2807 | if (method != nullptr) { |
2808 | strcpy(method, "+["); |
2809 | strcat(method, info->class_name); |
2810 | strcat(method, " "); |
2811 | strcat(method, info->selector_name); |
2812 | strcat(method, "]"); |
2813 | *ReferenceName = method; |
2814 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
2815 | } |
2816 | } else { |
2817 | info->method = |
2818 | llvm::make_unique<char[]>(9 + strlen(info->selector_name)); |
2819 | char *method = info->method.get(); |
2820 | if (method != nullptr) { |
2821 | if (Arch == Triple::x86_64) |
2822 | strcpy(method, "-[%rdi "); |
2823 | else if (Arch == Triple::aarch64) |
2824 | strcpy(method, "-[x0 "); |
2825 | else |
2826 | strcpy(method, "-[r? "); |
2827 | strcat(method, info->selector_name); |
2828 | strcat(method, "]"); |
2829 | *ReferenceName = method; |
2830 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
2831 | } |
2832 | } |
2833 | info->class_name = nullptr; |
2834 | } |
2835 | } else if (strcmp(*ReferenceName, "_objc_msgSendSuper2") == 0) { |
2836 | if (info->selector_name != nullptr) { |
2837 | info->method = |
2838 | llvm::make_unique<char[]>(17 + strlen(info->selector_name)); |
2839 | char *method = info->method.get(); |
2840 | if (method != nullptr) { |
2841 | if (Arch == Triple::x86_64) |
2842 | strcpy(method, "-[[%rdi super] "); |
2843 | else if (Arch == Triple::aarch64) |
2844 | strcpy(method, "-[[x0 super] "); |
2845 | else |
2846 | strcpy(method, "-[[r? super] "); |
2847 | strcat(method, info->selector_name); |
2848 | strcat(method, "]"); |
2849 | *ReferenceName = method; |
2850 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message5; |
2851 | } |
2852 | info->class_name = nullptr; |
2853 | } |
2854 | } |
2855 | } |
2856 | } |
2857 | |
2858 | // GuessPointerPointer() is passed the address of what might be a pointer to |
2859 | // a reference to an Objective-C class, selector, message ref or cfstring. |
2860 | // If so the value of the pointer is returned and one of the booleans are set |
2861 | // to true. If not zero is returned and all the booleans are set to false. |
2862 | static uint64_t GuessPointerPointer(uint64_t ReferenceValue, |
2863 | struct DisassembleInfo *info, |
2864 | bool &classref, bool &selref, bool &msgref, |
2865 | bool &cfstring) { |
2866 | classref = false; |
2867 | selref = false; |
2868 | msgref = false; |
2869 | cfstring = false; |
2870 | for (const auto &Load : info->O->load_commands()) { |
2871 | if (Load.C.cmd == MachO::LC_SEGMENT_64) { |
2872 | MachO::segment_command_64 Seg = info->O->getSegment64LoadCommand(Load); |
2873 | for (unsigned J = 0; J < Seg.nsects; ++J) { |
2874 | MachO::section_64 Sec = info->O->getSection64(Load, J); |
2875 | if ((strncmp(Sec.sectname, "__objc_selrefs", 16) == 0 || |
2876 | strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || |
2877 | strncmp(Sec.sectname, "__objc_superrefs", 16) == 0 || |
2878 | strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 || |
2879 | strncmp(Sec.sectname, "__cfstring", 16) == 0) && |
2880 | ReferenceValue >= Sec.addr && |
2881 | ReferenceValue < Sec.addr + Sec.size) { |
2882 | uint64_t sect_offset = ReferenceValue - Sec.addr; |
2883 | uint64_t object_offset = Sec.offset + sect_offset; |
2884 | StringRef MachOContents = info->O->getData(); |
2885 | uint64_t object_size = MachOContents.size(); |
2886 | const char *object_addr = (const char *)MachOContents.data(); |
2887 | if (object_offset < object_size) { |
2888 | uint64_t pointer_value; |
2889 | memcpy(&pointer_value, object_addr + object_offset, |
2890 | sizeof(uint64_t)); |
2891 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
2892 | sys::swapByteOrder(pointer_value); |
2893 | if (strncmp(Sec.sectname, "__objc_selrefs", 16) == 0) |
2894 | selref = true; |
2895 | else if (strncmp(Sec.sectname, "__objc_classrefs", 16) == 0 || |
2896 | strncmp(Sec.sectname, "__objc_superrefs", 16) == 0) |
2897 | classref = true; |
2898 | else if (strncmp(Sec.sectname, "__objc_msgrefs", 16) == 0 && |
2899 | ReferenceValue + 8 < Sec.addr + Sec.size) { |
2900 | msgref = true; |
2901 | memcpy(&pointer_value, object_addr + object_offset + 8, |
2902 | sizeof(uint64_t)); |
2903 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
2904 | sys::swapByteOrder(pointer_value); |
2905 | } else if (strncmp(Sec.sectname, "__cfstring", 16) == 0) |
2906 | cfstring = true; |
2907 | return pointer_value; |
2908 | } else { |
2909 | return 0; |
2910 | } |
2911 | } |
2912 | } |
2913 | } |
2914 | // TODO: Look for LC_SEGMENT for 32-bit Mach-O files. |
2915 | } |
2916 | return 0; |
2917 | } |
2918 | |
2919 | // get_pointer_64 returns a pointer to the bytes in the object file at the |
2920 | // Address from a section in the Mach-O file. And indirectly returns the |
2921 | // offset into the section, number of bytes left in the section past the offset |
2922 | // and which section is was being referenced. If the Address is not in a |
2923 | // section nullptr is returned. |
2924 | static const char *get_pointer_64(uint64_t Address, uint32_t &offset, |
2925 | uint32_t &left, SectionRef &S, |
2926 | DisassembleInfo *info, |
2927 | bool objc_only = false) { |
2928 | offset = 0; |
2929 | left = 0; |
2930 | S = SectionRef(); |
2931 | for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) { |
2932 | uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress(); |
2933 | uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize(); |
2934 | if (SectSize == 0) |
2935 | continue; |
2936 | if (objc_only) { |
2937 | StringRef SectName; |
2938 | ((*(info->Sections))[SectIdx]).getName(SectName); |
2939 | DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl(); |
2940 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
2941 | if (SegName != "__OBJC" && SectName != "__cstring") |
2942 | continue; |
2943 | } |
2944 | if (Address >= SectAddress && Address < SectAddress + SectSize) { |
2945 | S = (*(info->Sections))[SectIdx]; |
2946 | offset = Address - SectAddress; |
2947 | left = SectSize - offset; |
2948 | StringRef SectContents; |
2949 | ((*(info->Sections))[SectIdx]).getContents(SectContents); |
2950 | return SectContents.data() + offset; |
2951 | } |
2952 | } |
2953 | return nullptr; |
2954 | } |
2955 | |
2956 | static const char *get_pointer_32(uint32_t Address, uint32_t &offset, |
2957 | uint32_t &left, SectionRef &S, |
2958 | DisassembleInfo *info, |
2959 | bool objc_only = false) { |
2960 | return get_pointer_64(Address, offset, left, S, info, objc_only); |
2961 | } |
2962 | |
2963 | // get_symbol_64() returns the name of a symbol (or nullptr) and the address of |
2964 | // the symbol indirectly through n_value. Based on the relocation information |
2965 | // for the specified section offset in the specified section reference. |
2966 | // If no relocation information is found and a non-zero ReferenceValue for the |
2967 | // symbol is passed, look up that address in the info's AddrMap. |
2968 | static const char *get_symbol_64(uint32_t sect_offset, SectionRef S, |
2969 | DisassembleInfo *info, uint64_t &n_value, |
2970 | uint64_t ReferenceValue = 0) { |
2971 | n_value = 0; |
2972 | if (!info->verbose) |
2973 | return nullptr; |
2974 | |
2975 | // See if there is an external relocation entry at the sect_offset. |
2976 | bool reloc_found = false; |
2977 | DataRefImpl Rel; |
2978 | MachO::any_relocation_info RE; |
2979 | bool isExtern = false; |
2980 | SymbolRef Symbol; |
2981 | for (const RelocationRef &Reloc : S.relocations()) { |
2982 | uint64_t RelocOffset = Reloc.getOffset(); |
2983 | if (RelocOffset == sect_offset) { |
2984 | Rel = Reloc.getRawDataRefImpl(); |
2985 | RE = info->O->getRelocation(Rel); |
2986 | if (info->O->isRelocationScattered(RE)) |
2987 | continue; |
2988 | isExtern = info->O->getPlainRelocationExternal(RE); |
2989 | if (isExtern) { |
2990 | symbol_iterator RelocSym = Reloc.getSymbol(); |
2991 | Symbol = *RelocSym; |
2992 | } |
2993 | reloc_found = true; |
2994 | break; |
2995 | } |
2996 | } |
2997 | // If there is an external relocation entry for a symbol in this section |
2998 | // at this section_offset then use that symbol's value for the n_value |
2999 | // and return its name. |
3000 | const char *SymbolName = nullptr; |
3001 | if (reloc_found && isExtern) { |
3002 | n_value = Symbol.getValue(); |
3003 | Expected<StringRef> NameOrError = Symbol.getName(); |
3004 | if (!NameOrError) |
3005 | report_error(info->O->getFileName(), NameOrError.takeError()); |
3006 | StringRef Name = *NameOrError; |
3007 | if (!Name.empty()) { |
3008 | SymbolName = Name.data(); |
3009 | return SymbolName; |
3010 | } |
3011 | } |
3012 | |
3013 | // TODO: For fully linked images, look through the external relocation |
3014 | // entries off the dynamic symtab command. For these the r_offset is from the |
3015 | // start of the first writeable segment in the Mach-O file. So the offset |
3016 | // to this section from that segment is passed to this routine by the caller, |
3017 | // as the database_offset. Which is the difference of the section's starting |
3018 | // address and the first writable segment. |
3019 | // |
3020 | // NOTE: need add passing the database_offset to this routine. |
3021 | |
3022 | // We did not find an external relocation entry so look up the ReferenceValue |
3023 | // as an address of a symbol and if found return that symbol's name. |
3024 | SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); |
3025 | |
3026 | return SymbolName; |
3027 | } |
3028 | |
3029 | static const char *get_symbol_32(uint32_t sect_offset, SectionRef S, |
3030 | DisassembleInfo *info, |
3031 | uint32_t ReferenceValue) { |
3032 | uint64_t n_value64; |
3033 | return get_symbol_64(sect_offset, S, info, n_value64, ReferenceValue); |
3034 | } |
3035 | |
3036 | // These are structs in the Objective-C meta data and read to produce the |
3037 | // comments for disassembly. While these are part of the ABI they are no |
3038 | // public defintions. So the are here not in include/llvm/BinaryFormat/MachO.h |
3039 | // . |
3040 | |
3041 | // The cfstring object in a 64-bit Mach-O file. |
3042 | struct cfstring64_t { |
3043 | uint64_t isa; // class64_t * (64-bit pointer) |
3044 | uint64_t flags; // flag bits |
3045 | uint64_t characters; // char * (64-bit pointer) |
3046 | uint64_t length; // number of non-NULL characters in above |
3047 | }; |
3048 | |
3049 | // The class object in a 64-bit Mach-O file. |
3050 | struct class64_t { |
3051 | uint64_t isa; // class64_t * (64-bit pointer) |
3052 | uint64_t superclass; // class64_t * (64-bit pointer) |
3053 | uint64_t cache; // Cache (64-bit pointer) |
3054 | uint64_t vtable; // IMP * (64-bit pointer) |
3055 | uint64_t data; // class_ro64_t * (64-bit pointer) |
3056 | }; |
3057 | |
3058 | struct class32_t { |
3059 | uint32_t isa; /* class32_t * (32-bit pointer) */ |
3060 | uint32_t superclass; /* class32_t * (32-bit pointer) */ |
3061 | uint32_t cache; /* Cache (32-bit pointer) */ |
3062 | uint32_t vtable; /* IMP * (32-bit pointer) */ |
3063 | uint32_t data; /* class_ro32_t * (32-bit pointer) */ |
3064 | }; |
3065 | |
3066 | struct class_ro64_t { |
3067 | uint32_t flags; |
3068 | uint32_t instanceStart; |
3069 | uint32_t instanceSize; |
3070 | uint32_t reserved; |
3071 | uint64_t ivarLayout; // const uint8_t * (64-bit pointer) |
3072 | uint64_t name; // const char * (64-bit pointer) |
3073 | uint64_t baseMethods; // const method_list_t * (64-bit pointer) |
3074 | uint64_t baseProtocols; // const protocol_list_t * (64-bit pointer) |
3075 | uint64_t ivars; // const ivar_list_t * (64-bit pointer) |
3076 | uint64_t weakIvarLayout; // const uint8_t * (64-bit pointer) |
3077 | uint64_t baseProperties; // const struct objc_property_list (64-bit pointer) |
3078 | }; |
3079 | |
3080 | struct class_ro32_t { |
3081 | uint32_t flags; |
3082 | uint32_t instanceStart; |
3083 | uint32_t instanceSize; |
3084 | uint32_t ivarLayout; /* const uint8_t * (32-bit pointer) */ |
3085 | uint32_t name; /* const char * (32-bit pointer) */ |
3086 | uint32_t baseMethods; /* const method_list_t * (32-bit pointer) */ |
3087 | uint32_t baseProtocols; /* const protocol_list_t * (32-bit pointer) */ |
3088 | uint32_t ivars; /* const ivar_list_t * (32-bit pointer) */ |
3089 | uint32_t weakIvarLayout; /* const uint8_t * (32-bit pointer) */ |
3090 | uint32_t baseProperties; /* const struct objc_property_list * |
3091 | (32-bit pointer) */ |
3092 | }; |
3093 | |
3094 | /* Values for class_ro{64,32}_t->flags */ |
3095 | #define RO_META(1 << 0) (1 << 0) |
3096 | #define RO_ROOT(1 << 1) (1 << 1) |
3097 | #define RO_HAS_CXX_STRUCTORS(1 << 2) (1 << 2) |
3098 | |
3099 | struct method_list64_t { |
3100 | uint32_t entsize; |
3101 | uint32_t count; |
3102 | /* struct method64_t first; These structures follow inline */ |
3103 | }; |
3104 | |
3105 | struct method_list32_t { |
3106 | uint32_t entsize; |
3107 | uint32_t count; |
3108 | /* struct method32_t first; These structures follow inline */ |
3109 | }; |
3110 | |
3111 | struct method64_t { |
3112 | uint64_t name; /* SEL (64-bit pointer) */ |
3113 | uint64_t types; /* const char * (64-bit pointer) */ |
3114 | uint64_t imp; /* IMP (64-bit pointer) */ |
3115 | }; |
3116 | |
3117 | struct method32_t { |
3118 | uint32_t name; /* SEL (32-bit pointer) */ |
3119 | uint32_t types; /* const char * (32-bit pointer) */ |
3120 | uint32_t imp; /* IMP (32-bit pointer) */ |
3121 | }; |
3122 | |
3123 | struct protocol_list64_t { |
3124 | uint64_t count; /* uintptr_t (a 64-bit value) */ |
3125 | /* struct protocol64_t * list[0]; These pointers follow inline */ |
3126 | }; |
3127 | |
3128 | struct protocol_list32_t { |
3129 | uint32_t count; /* uintptr_t (a 32-bit value) */ |
3130 | /* struct protocol32_t * list[0]; These pointers follow inline */ |
3131 | }; |
3132 | |
3133 | struct protocol64_t { |
3134 | uint64_t isa; /* id * (64-bit pointer) */ |
3135 | uint64_t name; /* const char * (64-bit pointer) */ |
3136 | uint64_t protocols; /* struct protocol_list64_t * |
3137 | (64-bit pointer) */ |
3138 | uint64_t instanceMethods; /* method_list_t * (64-bit pointer) */ |
3139 | uint64_t classMethods; /* method_list_t * (64-bit pointer) */ |
3140 | uint64_t optionalInstanceMethods; /* method_list_t * (64-bit pointer) */ |
3141 | uint64_t optionalClassMethods; /* method_list_t * (64-bit pointer) */ |
3142 | uint64_t instanceProperties; /* struct objc_property_list * |
3143 | (64-bit pointer) */ |
3144 | }; |
3145 | |
3146 | struct protocol32_t { |
3147 | uint32_t isa; /* id * (32-bit pointer) */ |
3148 | uint32_t name; /* const char * (32-bit pointer) */ |
3149 | uint32_t protocols; /* struct protocol_list_t * |
3150 | (32-bit pointer) */ |
3151 | uint32_t instanceMethods; /* method_list_t * (32-bit pointer) */ |
3152 | uint32_t classMethods; /* method_list_t * (32-bit pointer) */ |
3153 | uint32_t optionalInstanceMethods; /* method_list_t * (32-bit pointer) */ |
3154 | uint32_t optionalClassMethods; /* method_list_t * (32-bit pointer) */ |
3155 | uint32_t instanceProperties; /* struct objc_property_list * |
3156 | (32-bit pointer) */ |
3157 | }; |
3158 | |
3159 | struct ivar_list64_t { |
3160 | uint32_t entsize; |
3161 | uint32_t count; |
3162 | /* struct ivar64_t first; These structures follow inline */ |
3163 | }; |
3164 | |
3165 | struct ivar_list32_t { |
3166 | uint32_t entsize; |
3167 | uint32_t count; |
3168 | /* struct ivar32_t first; These structures follow inline */ |
3169 | }; |
3170 | |
3171 | struct ivar64_t { |
3172 | uint64_t offset; /* uintptr_t * (64-bit pointer) */ |
3173 | uint64_t name; /* const char * (64-bit pointer) */ |
3174 | uint64_t type; /* const char * (64-bit pointer) */ |
3175 | uint32_t alignment; |
3176 | uint32_t size; |
3177 | }; |
3178 | |
3179 | struct ivar32_t { |
3180 | uint32_t offset; /* uintptr_t * (32-bit pointer) */ |
3181 | uint32_t name; /* const char * (32-bit pointer) */ |
3182 | uint32_t type; /* const char * (32-bit pointer) */ |
3183 | uint32_t alignment; |
3184 | uint32_t size; |
3185 | }; |
3186 | |
3187 | struct objc_property_list64 { |
3188 | uint32_t entsize; |
3189 | uint32_t count; |
3190 | /* struct objc_property64 first; These structures follow inline */ |
3191 | }; |
3192 | |
3193 | struct objc_property_list32 { |
3194 | uint32_t entsize; |
3195 | uint32_t count; |
3196 | /* struct objc_property32 first; These structures follow inline */ |
3197 | }; |
3198 | |
3199 | struct objc_property64 { |
3200 | uint64_t name; /* const char * (64-bit pointer) */ |
3201 | uint64_t attributes; /* const char * (64-bit pointer) */ |
3202 | }; |
3203 | |
3204 | struct objc_property32 { |
3205 | uint32_t name; /* const char * (32-bit pointer) */ |
3206 | uint32_t attributes; /* const char * (32-bit pointer) */ |
3207 | }; |
3208 | |
3209 | struct category64_t { |
3210 | uint64_t name; /* const char * (64-bit pointer) */ |
3211 | uint64_t cls; /* struct class_t * (64-bit pointer) */ |
3212 | uint64_t instanceMethods; /* struct method_list_t * (64-bit pointer) */ |
3213 | uint64_t classMethods; /* struct method_list_t * (64-bit pointer) */ |
3214 | uint64_t protocols; /* struct protocol_list_t * (64-bit pointer) */ |
3215 | uint64_t instanceProperties; /* struct objc_property_list * |
3216 | (64-bit pointer) */ |
3217 | }; |
3218 | |
3219 | struct category32_t { |
3220 | uint32_t name; /* const char * (32-bit pointer) */ |
3221 | uint32_t cls; /* struct class_t * (32-bit pointer) */ |
3222 | uint32_t instanceMethods; /* struct method_list_t * (32-bit pointer) */ |
3223 | uint32_t classMethods; /* struct method_list_t * (32-bit pointer) */ |
3224 | uint32_t protocols; /* struct protocol_list_t * (32-bit pointer) */ |
3225 | uint32_t instanceProperties; /* struct objc_property_list * |
3226 | (32-bit pointer) */ |
3227 | }; |
3228 | |
3229 | struct objc_image_info64 { |
3230 | uint32_t version; |
3231 | uint32_t flags; |
3232 | }; |
3233 | struct objc_image_info32 { |
3234 | uint32_t version; |
3235 | uint32_t flags; |
3236 | }; |
3237 | struct imageInfo_t { |
3238 | uint32_t version; |
3239 | uint32_t flags; |
3240 | }; |
3241 | /* masks for objc_image_info.flags */ |
3242 | #define OBJC_IMAGE_IS_REPLACEMENT(1 << 0) (1 << 0) |
3243 | #define OBJC_IMAGE_SUPPORTS_GC(1 << 1) (1 << 1) |
3244 | #define OBJC_IMAGE_IS_SIMULATED(1 << 5) (1 << 5) |
3245 | #define OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES(1 << 6) (1 << 6) |
3246 | |
3247 | struct message_ref64 { |
3248 | uint64_t imp; /* IMP (64-bit pointer) */ |
3249 | uint64_t sel; /* SEL (64-bit pointer) */ |
3250 | }; |
3251 | |
3252 | struct message_ref32 { |
3253 | uint32_t imp; /* IMP (32-bit pointer) */ |
3254 | uint32_t sel; /* SEL (32-bit pointer) */ |
3255 | }; |
3256 | |
3257 | // Objective-C 1 (32-bit only) meta data structs. |
3258 | |
3259 | struct objc_module_t { |
3260 | uint32_t version; |
3261 | uint32_t size; |
3262 | uint32_t name; /* char * (32-bit pointer) */ |
3263 | uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */ |
3264 | }; |
3265 | |
3266 | struct objc_symtab_t { |
3267 | uint32_t sel_ref_cnt; |
3268 | uint32_t refs; /* SEL * (32-bit pointer) */ |
3269 | uint16_t cls_def_cnt; |
3270 | uint16_t cat_def_cnt; |
3271 | // uint32_t defs[1]; /* void * (32-bit pointer) variable size */ |
3272 | }; |
3273 | |
3274 | struct objc_class_t { |
3275 | uint32_t isa; /* struct objc_class * (32-bit pointer) */ |
3276 | uint32_t super_class; /* struct objc_class * (32-bit pointer) */ |
3277 | uint32_t name; /* const char * (32-bit pointer) */ |
3278 | int32_t version; |
3279 | int32_t info; |
3280 | int32_t instance_size; |
3281 | uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */ |
3282 | uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */ |
3283 | uint32_t cache; /* struct objc_cache * (32-bit pointer) */ |
3284 | uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */ |
3285 | }; |
3286 | |
3287 | #define CLS_GETINFO(cls, infomask)((cls)->info & (infomask)) ((cls)->info & (infomask)) |
3288 | // class is not a metaclass |
3289 | #define CLS_CLASS0x1 0x1 |
3290 | // class is a metaclass |
3291 | #define CLS_META0x2 0x2 |
3292 | |
3293 | struct objc_category_t { |
3294 | uint32_t category_name; /* char * (32-bit pointer) */ |
3295 | uint32_t class_name; /* char * (32-bit pointer) */ |
3296 | uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */ |
3297 | uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */ |
3298 | uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */ |
3299 | }; |
3300 | |
3301 | struct objc_ivar_t { |
3302 | uint32_t ivar_name; /* char * (32-bit pointer) */ |
3303 | uint32_t ivar_type; /* char * (32-bit pointer) */ |
3304 | int32_t ivar_offset; |
3305 | }; |
3306 | |
3307 | struct objc_ivar_list_t { |
3308 | int32_t ivar_count; |
3309 | // struct objc_ivar_t ivar_list[1]; /* variable length structure */ |
3310 | }; |
3311 | |
3312 | struct objc_method_list_t { |
3313 | uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */ |
3314 | int32_t method_count; |
3315 | // struct objc_method_t method_list[1]; /* variable length structure */ |
3316 | }; |
3317 | |
3318 | struct objc_method_t { |
3319 | uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */ |
3320 | uint32_t method_types; /* char * (32-bit pointer) */ |
3321 | uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...) |
3322 | (32-bit pointer) */ |
3323 | }; |
3324 | |
3325 | struct objc_protocol_list_t { |
3326 | uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */ |
3327 | int32_t count; |
3328 | // uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t * |
3329 | // (32-bit pointer) */ |
3330 | }; |
3331 | |
3332 | struct objc_protocol_t { |
3333 | uint32_t isa; /* struct objc_class * (32-bit pointer) */ |
3334 | uint32_t protocol_name; /* char * (32-bit pointer) */ |
3335 | uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */ |
3336 | uint32_t instance_methods; /* struct objc_method_description_list * |
3337 | (32-bit pointer) */ |
3338 | uint32_t class_methods; /* struct objc_method_description_list * |
3339 | (32-bit pointer) */ |
3340 | }; |
3341 | |
3342 | struct objc_method_description_list_t { |
3343 | int32_t count; |
3344 | // struct objc_method_description_t list[1]; |
3345 | }; |
3346 | |
3347 | struct objc_method_description_t { |
3348 | uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */ |
3349 | uint32_t types; /* char * (32-bit pointer) */ |
3350 | }; |
3351 | |
3352 | inline void swapStruct(struct cfstring64_t &cfs) { |
3353 | sys::swapByteOrder(cfs.isa); |
3354 | sys::swapByteOrder(cfs.flags); |
3355 | sys::swapByteOrder(cfs.characters); |
3356 | sys::swapByteOrder(cfs.length); |
3357 | } |
3358 | |
3359 | inline void swapStruct(struct class64_t &c) { |
3360 | sys::swapByteOrder(c.isa); |
3361 | sys::swapByteOrder(c.superclass); |
3362 | sys::swapByteOrder(c.cache); |
3363 | sys::swapByteOrder(c.vtable); |
3364 | sys::swapByteOrder(c.data); |
3365 | } |
3366 | |
3367 | inline void swapStruct(struct class32_t &c) { |
3368 | sys::swapByteOrder(c.isa); |
3369 | sys::swapByteOrder(c.superclass); |
3370 | sys::swapByteOrder(c.cache); |
3371 | sys::swapByteOrder(c.vtable); |
3372 | sys::swapByteOrder(c.data); |
3373 | } |
3374 | |
3375 | inline void swapStruct(struct class_ro64_t &cro) { |
3376 | sys::swapByteOrder(cro.flags); |
3377 | sys::swapByteOrder(cro.instanceStart); |
3378 | sys::swapByteOrder(cro.instanceSize); |
3379 | sys::swapByteOrder(cro.reserved); |
3380 | sys::swapByteOrder(cro.ivarLayout); |
3381 | sys::swapByteOrder(cro.name); |
3382 | sys::swapByteOrder(cro.baseMethods); |
3383 | sys::swapByteOrder(cro.baseProtocols); |
3384 | sys::swapByteOrder(cro.ivars); |
3385 | sys::swapByteOrder(cro.weakIvarLayout); |
3386 | sys::swapByteOrder(cro.baseProperties); |
3387 | } |
3388 | |
3389 | inline void swapStruct(struct class_ro32_t &cro) { |
3390 | sys::swapByteOrder(cro.flags); |
3391 | sys::swapByteOrder(cro.instanceStart); |
3392 | sys::swapByteOrder(cro.instanceSize); |
3393 | sys::swapByteOrder(cro.ivarLayout); |
3394 | sys::swapByteOrder(cro.name); |
3395 | sys::swapByteOrder(cro.baseMethods); |
3396 | sys::swapByteOrder(cro.baseProtocols); |
3397 | sys::swapByteOrder(cro.ivars); |
3398 | sys::swapByteOrder(cro.weakIvarLayout); |
3399 | sys::swapByteOrder(cro.baseProperties); |
3400 | } |
3401 | |
3402 | inline void swapStruct(struct method_list64_t &ml) { |
3403 | sys::swapByteOrder(ml.entsize); |
3404 | sys::swapByteOrder(ml.count); |
3405 | } |
3406 | |
3407 | inline void swapStruct(struct method_list32_t &ml) { |
3408 | sys::swapByteOrder(ml.entsize); |
3409 | sys::swapByteOrder(ml.count); |
3410 | } |
3411 | |
3412 | inline void swapStruct(struct method64_t &m) { |
3413 | sys::swapByteOrder(m.name); |
3414 | sys::swapByteOrder(m.types); |
3415 | sys::swapByteOrder(m.imp); |
3416 | } |
3417 | |
3418 | inline void swapStruct(struct method32_t &m) { |
3419 | sys::swapByteOrder(m.name); |
3420 | sys::swapByteOrder(m.types); |
3421 | sys::swapByteOrder(m.imp); |
3422 | } |
3423 | |
3424 | inline void swapStruct(struct protocol_list64_t &pl) { |
3425 | sys::swapByteOrder(pl.count); |
3426 | } |
3427 | |
3428 | inline void swapStruct(struct protocol_list32_t &pl) { |
3429 | sys::swapByteOrder(pl.count); |
3430 | } |
3431 | |
3432 | inline void swapStruct(struct protocol64_t &p) { |
3433 | sys::swapByteOrder(p.isa); |
3434 | sys::swapByteOrder(p.name); |
3435 | sys::swapByteOrder(p.protocols); |
3436 | sys::swapByteOrder(p.instanceMethods); |
3437 | sys::swapByteOrder(p.classMethods); |
3438 | sys::swapByteOrder(p.optionalInstanceMethods); |
3439 | sys::swapByteOrder(p.optionalClassMethods); |
3440 | sys::swapByteOrder(p.instanceProperties); |
3441 | } |
3442 | |
3443 | inline void swapStruct(struct protocol32_t &p) { |
3444 | sys::swapByteOrder(p.isa); |
3445 | sys::swapByteOrder(p.name); |
3446 | sys::swapByteOrder(p.protocols); |
3447 | sys::swapByteOrder(p.instanceMethods); |
3448 | sys::swapByteOrder(p.classMethods); |
3449 | sys::swapByteOrder(p.optionalInstanceMethods); |
3450 | sys::swapByteOrder(p.optionalClassMethods); |
3451 | sys::swapByteOrder(p.instanceProperties); |
3452 | } |
3453 | |
3454 | inline void swapStruct(struct ivar_list64_t &il) { |
3455 | sys::swapByteOrder(il.entsize); |
3456 | sys::swapByteOrder(il.count); |
3457 | } |
3458 | |
3459 | inline void swapStruct(struct ivar_list32_t &il) { |
3460 | sys::swapByteOrder(il.entsize); |
3461 | sys::swapByteOrder(il.count); |
3462 | } |
3463 | |
3464 | inline void swapStruct(struct ivar64_t &i) { |
3465 | sys::swapByteOrder(i.offset); |
3466 | sys::swapByteOrder(i.name); |
3467 | sys::swapByteOrder(i.type); |
3468 | sys::swapByteOrder(i.alignment); |
3469 | sys::swapByteOrder(i.size); |
3470 | } |
3471 | |
3472 | inline void swapStruct(struct ivar32_t &i) { |
3473 | sys::swapByteOrder(i.offset); |
3474 | sys::swapByteOrder(i.name); |
3475 | sys::swapByteOrder(i.type); |
3476 | sys::swapByteOrder(i.alignment); |
3477 | sys::swapByteOrder(i.size); |
3478 | } |
3479 | |
3480 | inline void swapStruct(struct objc_property_list64 &pl) { |
3481 | sys::swapByteOrder(pl.entsize); |
3482 | sys::swapByteOrder(pl.count); |
3483 | } |
3484 | |
3485 | inline void swapStruct(struct objc_property_list32 &pl) { |
3486 | sys::swapByteOrder(pl.entsize); |
3487 | sys::swapByteOrder(pl.count); |
3488 | } |
3489 | |
3490 | inline void swapStruct(struct objc_property64 &op) { |
3491 | sys::swapByteOrder(op.name); |
3492 | sys::swapByteOrder(op.attributes); |
3493 | } |
3494 | |
3495 | inline void swapStruct(struct objc_property32 &op) { |
3496 | sys::swapByteOrder(op.name); |
3497 | sys::swapByteOrder(op.attributes); |
3498 | } |
3499 | |
3500 | inline void swapStruct(struct category64_t &c) { |
3501 | sys::swapByteOrder(c.name); |
3502 | sys::swapByteOrder(c.cls); |
3503 | sys::swapByteOrder(c.instanceMethods); |
3504 | sys::swapByteOrder(c.classMethods); |
3505 | sys::swapByteOrder(c.protocols); |
3506 | sys::swapByteOrder(c.instanceProperties); |
3507 | } |
3508 | |
3509 | inline void swapStruct(struct category32_t &c) { |
3510 | sys::swapByteOrder(c.name); |
3511 | sys::swapByteOrder(c.cls); |
3512 | sys::swapByteOrder(c.instanceMethods); |
3513 | sys::swapByteOrder(c.classMethods); |
3514 | sys::swapByteOrder(c.protocols); |
3515 | sys::swapByteOrder(c.instanceProperties); |
3516 | } |
3517 | |
3518 | inline void swapStruct(struct objc_image_info64 &o) { |
3519 | sys::swapByteOrder(o.version); |
3520 | sys::swapByteOrder(o.flags); |
3521 | } |
3522 | |
3523 | inline void swapStruct(struct objc_image_info32 &o) { |
3524 | sys::swapByteOrder(o.version); |
3525 | sys::swapByteOrder(o.flags); |
3526 | } |
3527 | |
3528 | inline void swapStruct(struct imageInfo_t &o) { |
3529 | sys::swapByteOrder(o.version); |
3530 | sys::swapByteOrder(o.flags); |
3531 | } |
3532 | |
3533 | inline void swapStruct(struct message_ref64 &mr) { |
3534 | sys::swapByteOrder(mr.imp); |
3535 | sys::swapByteOrder(mr.sel); |
3536 | } |
3537 | |
3538 | inline void swapStruct(struct message_ref32 &mr) { |
3539 | sys::swapByteOrder(mr.imp); |
3540 | sys::swapByteOrder(mr.sel); |
3541 | } |
3542 | |
3543 | inline void swapStruct(struct objc_module_t &module) { |
3544 | sys::swapByteOrder(module.version); |
3545 | sys::swapByteOrder(module.size); |
3546 | sys::swapByteOrder(module.name); |
3547 | sys::swapByteOrder(module.symtab); |
3548 | } |
3549 | |
3550 | inline void swapStruct(struct objc_symtab_t &symtab) { |
3551 | sys::swapByteOrder(symtab.sel_ref_cnt); |
3552 | sys::swapByteOrder(symtab.refs); |
3553 | sys::swapByteOrder(symtab.cls_def_cnt); |
3554 | sys::swapByteOrder(symtab.cat_def_cnt); |
3555 | } |
3556 | |
3557 | inline void swapStruct(struct objc_class_t &objc_class) { |
3558 | sys::swapByteOrder(objc_class.isa); |
3559 | sys::swapByteOrder(objc_class.super_class); |
3560 | sys::swapByteOrder(objc_class.name); |
3561 | sys::swapByteOrder(objc_class.version); |
3562 | sys::swapByteOrder(objc_class.info); |
3563 | sys::swapByteOrder(objc_class.instance_size); |
3564 | sys::swapByteOrder(objc_class.ivars); |
3565 | sys::swapByteOrder(objc_class.methodLists); |
3566 | sys::swapByteOrder(objc_class.cache); |
3567 | sys::swapByteOrder(objc_class.protocols); |
3568 | } |
3569 | |
3570 | inline void swapStruct(struct objc_category_t &objc_category) { |
3571 | sys::swapByteOrder(objc_category.category_name); |
3572 | sys::swapByteOrder(objc_category.class_name); |
3573 | sys::swapByteOrder(objc_category.instance_methods); |
3574 | sys::swapByteOrder(objc_category.class_methods); |
3575 | sys::swapByteOrder(objc_category.protocols); |
3576 | } |
3577 | |
3578 | inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) { |
3579 | sys::swapByteOrder(objc_ivar_list.ivar_count); |
3580 | } |
3581 | |
3582 | inline void swapStruct(struct objc_ivar_t &objc_ivar) { |
3583 | sys::swapByteOrder(objc_ivar.ivar_name); |
3584 | sys::swapByteOrder(objc_ivar.ivar_type); |
3585 | sys::swapByteOrder(objc_ivar.ivar_offset); |
3586 | } |
3587 | |
3588 | inline void swapStruct(struct objc_method_list_t &method_list) { |
3589 | sys::swapByteOrder(method_list.obsolete); |
3590 | sys::swapByteOrder(method_list.method_count); |
3591 | } |
3592 | |
3593 | inline void swapStruct(struct objc_method_t &method) { |
3594 | sys::swapByteOrder(method.method_name); |
3595 | sys::swapByteOrder(method.method_types); |
3596 | sys::swapByteOrder(method.method_imp); |
3597 | } |
3598 | |
3599 | inline void swapStruct(struct objc_protocol_list_t &protocol_list) { |
3600 | sys::swapByteOrder(protocol_list.next); |
3601 | sys::swapByteOrder(protocol_list.count); |
3602 | } |
3603 | |
3604 | inline void swapStruct(struct objc_protocol_t &protocol) { |
3605 | sys::swapByteOrder(protocol.isa); |
3606 | sys::swapByteOrder(protocol.protocol_name); |
3607 | sys::swapByteOrder(protocol.protocol_list); |
3608 | sys::swapByteOrder(protocol.instance_methods); |
3609 | sys::swapByteOrder(protocol.class_methods); |
3610 | } |
3611 | |
3612 | inline void swapStruct(struct objc_method_description_list_t &mdl) { |
3613 | sys::swapByteOrder(mdl.count); |
3614 | } |
3615 | |
3616 | inline void swapStruct(struct objc_method_description_t &md) { |
3617 | sys::swapByteOrder(md.name); |
3618 | sys::swapByteOrder(md.types); |
3619 | } |
3620 | |
3621 | static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, |
3622 | struct DisassembleInfo *info); |
3623 | |
3624 | // get_objc2_64bit_class_name() is used for disassembly and is passed a pointer |
3625 | // to an Objective-C class and returns the class name. It is also passed the |
3626 | // address of the pointer, so when the pointer is zero as it can be in an .o |
3627 | // file, that is used to look for an external relocation entry with a symbol |
3628 | // name. |
3629 | static const char *get_objc2_64bit_class_name(uint64_t pointer_value, |
3630 | uint64_t ReferenceValue, |
3631 | struct DisassembleInfo *info) { |
3632 | const char *r; |
3633 | uint32_t offset, left; |
3634 | SectionRef S; |
3635 | |
3636 | // The pointer_value can be 0 in an object file and have a relocation |
3637 | // entry for the class symbol at the ReferenceValue (the address of the |
3638 | // pointer). |
3639 | if (pointer_value == 0) { |
3640 | r = get_pointer_64(ReferenceValue, offset, left, S, info); |
3641 | if (r == nullptr || left < sizeof(uint64_t)) |
3642 | return nullptr; |
3643 | uint64_t n_value; |
3644 | const char *symbol_name = get_symbol_64(offset, S, info, n_value); |
3645 | if (symbol_name == nullptr) |
3646 | return nullptr; |
3647 | const char *class_name = strrchr(symbol_name, '$'); |
3648 | if (class_name != nullptr && class_name[1] == '_' && class_name[2] != '\0') |
3649 | return class_name + 2; |
3650 | else |
3651 | return nullptr; |
3652 | } |
3653 | |
3654 | // The case were the pointer_value is non-zero and points to a class defined |
3655 | // in this Mach-O file. |
3656 | r = get_pointer_64(pointer_value, offset, left, S, info); |
3657 | if (r == nullptr || left < sizeof(struct class64_t)) |
3658 | return nullptr; |
3659 | struct class64_t c; |
3660 | memcpy(&c, r, sizeof(struct class64_t)); |
3661 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3662 | swapStruct(c); |
3663 | if (c.data == 0) |
3664 | return nullptr; |
3665 | r = get_pointer_64(c.data, offset, left, S, info); |
3666 | if (r == nullptr || left < sizeof(struct class_ro64_t)) |
3667 | return nullptr; |
3668 | struct class_ro64_t cro; |
3669 | memcpy(&cro, r, sizeof(struct class_ro64_t)); |
3670 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3671 | swapStruct(cro); |
3672 | if (cro.name == 0) |
3673 | return nullptr; |
3674 | const char *name = get_pointer_64(cro.name, offset, left, S, info); |
3675 | return name; |
3676 | } |
3677 | |
3678 | // get_objc2_64bit_cfstring_name is used for disassembly and is passed a |
3679 | // pointer to a cfstring and returns its name or nullptr. |
3680 | static const char *get_objc2_64bit_cfstring_name(uint64_t ReferenceValue, |
3681 | struct DisassembleInfo *info) { |
3682 | const char *r, *name; |
3683 | uint32_t offset, left; |
3684 | SectionRef S; |
3685 | struct cfstring64_t cfs; |
3686 | uint64_t cfs_characters; |
3687 | |
3688 | r = get_pointer_64(ReferenceValue, offset, left, S, info); |
3689 | if (r == nullptr || left < sizeof(struct cfstring64_t)) |
3690 | return nullptr; |
3691 | memcpy(&cfs, r, sizeof(struct cfstring64_t)); |
3692 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3693 | swapStruct(cfs); |
3694 | if (cfs.characters == 0) { |
3695 | uint64_t n_value; |
3696 | const char *symbol_name = get_symbol_64( |
3697 | offset + offsetof(struct cfstring64_t, characters)__builtin_offsetof(struct cfstring64_t, characters), S, info, n_value); |
3698 | if (symbol_name == nullptr) |
3699 | return nullptr; |
3700 | cfs_characters = n_value; |
3701 | } else |
3702 | cfs_characters = cfs.characters; |
3703 | name = get_pointer_64(cfs_characters, offset, left, S, info); |
3704 | |
3705 | return name; |
3706 | } |
3707 | |
3708 | // get_objc2_64bit_selref() is used for disassembly and is passed a the address |
3709 | // of a pointer to an Objective-C selector reference when the pointer value is |
3710 | // zero as in a .o file and is likely to have a external relocation entry with |
3711 | // who's symbol's n_value is the real pointer to the selector name. If that is |
3712 | // the case the real pointer to the selector name is returned else 0 is |
3713 | // returned |
3714 | static uint64_t get_objc2_64bit_selref(uint64_t ReferenceValue, |
3715 | struct DisassembleInfo *info) { |
3716 | uint32_t offset, left; |
3717 | SectionRef S; |
3718 | |
3719 | const char *r = get_pointer_64(ReferenceValue, offset, left, S, info); |
3720 | if (r == nullptr || left < sizeof(uint64_t)) |
3721 | return 0; |
3722 | uint64_t n_value; |
3723 | const char *symbol_name = get_symbol_64(offset, S, info, n_value); |
3724 | if (symbol_name == nullptr) |
3725 | return 0; |
3726 | return n_value; |
3727 | } |
3728 | |
3729 | static const SectionRef get_section(MachOObjectFile *O, const char *segname, |
3730 | const char *sectname) { |
3731 | for (const SectionRef &Section : O->sections()) { |
3732 | StringRef SectName; |
3733 | Section.getName(SectName); |
3734 | DataRefImpl Ref = Section.getRawDataRefImpl(); |
3735 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
3736 | if (SegName == segname && SectName == sectname) |
3737 | return Section; |
3738 | } |
3739 | return SectionRef(); |
3740 | } |
3741 | |
3742 | static void |
3743 | walk_pointer_list_64(const char *listname, const SectionRef S, |
3744 | MachOObjectFile *O, struct DisassembleInfo *info, |
3745 | void (*func)(uint64_t, struct DisassembleInfo *info)) { |
3746 | if (S == SectionRef()) |
3747 | return; |
3748 | |
3749 | StringRef SectName; |
3750 | S.getName(SectName); |
3751 | DataRefImpl Ref = S.getRawDataRefImpl(); |
3752 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
3753 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
3754 | |
3755 | StringRef BytesStr; |
3756 | S.getContents(BytesStr); |
3757 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
3758 | |
3759 | for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint64_t)) { |
3760 | uint32_t left = S.getSize() - i; |
3761 | uint32_t size = left < sizeof(uint64_t) ? left : sizeof(uint64_t); |
3762 | uint64_t p = 0; |
3763 | memcpy(&p, Contents + i, size); |
3764 | if (i + sizeof(uint64_t) > S.getSize()) |
3765 | outs() << listname << " list pointer extends past end of (" << SegName |
3766 | << "," << SectName << ") section\n"; |
3767 | outs() << format("%016" PRIx64"l" "x", S.getAddress() + i) << " "; |
3768 | |
3769 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
3770 | sys::swapByteOrder(p); |
3771 | |
3772 | uint64_t n_value = 0; |
3773 | const char *name = get_symbol_64(i, S, info, n_value, p); |
3774 | if (name == nullptr) |
3775 | name = get_dyld_bind_info_symbolname(S.getAddress() + i, info); |
3776 | |
3777 | if (n_value != 0) { |
3778 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3779 | if (p != 0) |
3780 | outs() << " + " << format("0x%" PRIx64"l" "x", p); |
3781 | } else |
3782 | outs() << format("0x%" PRIx64"l" "x", p); |
3783 | if (name != nullptr) |
3784 | outs() << " " << name; |
3785 | outs() << "\n"; |
3786 | |
3787 | p += n_value; |
3788 | if (func) |
3789 | func(p, info); |
3790 | } |
3791 | } |
3792 | |
3793 | static void |
3794 | walk_pointer_list_32(const char *listname, const SectionRef S, |
3795 | MachOObjectFile *O, struct DisassembleInfo *info, |
3796 | void (*func)(uint32_t, struct DisassembleInfo *info)) { |
3797 | if (S == SectionRef()) |
3798 | return; |
3799 | |
3800 | StringRef SectName; |
3801 | S.getName(SectName); |
3802 | DataRefImpl Ref = S.getRawDataRefImpl(); |
3803 | StringRef SegName = O->getSectionFinalSegmentName(Ref); |
3804 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
3805 | |
3806 | StringRef BytesStr; |
3807 | S.getContents(BytesStr); |
3808 | const char *Contents = reinterpret_cast<const char *>(BytesStr.data()); |
3809 | |
3810 | for (uint32_t i = 0; i < S.getSize(); i += sizeof(uint32_t)) { |
3811 | uint32_t left = S.getSize() - i; |
3812 | uint32_t size = left < sizeof(uint32_t) ? left : sizeof(uint32_t); |
3813 | uint32_t p = 0; |
3814 | memcpy(&p, Contents + i, size); |
3815 | if (i + sizeof(uint32_t) > S.getSize()) |
3816 | outs() << listname << " list pointer extends past end of (" << SegName |
3817 | << "," << SectName << ") section\n"; |
3818 | uint32_t Address = S.getAddress() + i; |
3819 | outs() << format("%08" PRIx32"x", Address) << " "; |
3820 | |
3821 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
3822 | sys::swapByteOrder(p); |
3823 | outs() << format("0x%" PRIx32"x", p); |
3824 | |
3825 | const char *name = get_symbol_32(i, S, info, p); |
3826 | if (name != nullptr) |
3827 | outs() << " " << name; |
3828 | outs() << "\n"; |
3829 | |
3830 | if (func) |
3831 | func(p, info); |
3832 | } |
3833 | } |
3834 | |
3835 | static void print_layout_map(const char *layout_map, uint32_t left) { |
3836 | if (layout_map == nullptr) |
3837 | return; |
3838 | outs() << " layout map: "; |
3839 | do { |
3840 | outs() << format("0x%02" PRIx32"x", (*layout_map) & 0xff) << " "; |
3841 | left--; |
3842 | layout_map++; |
3843 | } while (*layout_map != '\0' && left != 0); |
3844 | outs() << "\n"; |
3845 | } |
3846 | |
3847 | static void print_layout_map64(uint64_t p, struct DisassembleInfo *info) { |
3848 | uint32_t offset, left; |
3849 | SectionRef S; |
3850 | const char *layout_map; |
3851 | |
3852 | if (p == 0) |
3853 | return; |
3854 | layout_map = get_pointer_64(p, offset, left, S, info); |
3855 | print_layout_map(layout_map, left); |
3856 | } |
3857 | |
3858 | static void print_layout_map32(uint32_t p, struct DisassembleInfo *info) { |
3859 | uint32_t offset, left; |
3860 | SectionRef S; |
3861 | const char *layout_map; |
3862 | |
3863 | if (p == 0) |
3864 | return; |
3865 | layout_map = get_pointer_32(p, offset, left, S, info); |
3866 | print_layout_map(layout_map, left); |
3867 | } |
3868 | |
3869 | static void print_method_list64_t(uint64_t p, struct DisassembleInfo *info, |
3870 | const char *indent) { |
3871 | struct method_list64_t ml; |
3872 | struct method64_t m; |
3873 | const char *r; |
3874 | uint32_t offset, xoffset, left, i; |
3875 | SectionRef S, xS; |
3876 | const char *name, *sym_name; |
3877 | uint64_t n_value; |
3878 | |
3879 | r = get_pointer_64(p, offset, left, S, info); |
3880 | if (r == nullptr) |
3881 | return; |
3882 | memset(&ml, '\0', sizeof(struct method_list64_t)); |
3883 | if (left < sizeof(struct method_list64_t)) { |
3884 | memcpy(&ml, r, left); |
3885 | outs() << " (method_list_t entends past the end of the section)\n"; |
3886 | } else |
3887 | memcpy(&ml, r, sizeof(struct method_list64_t)); |
3888 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3889 | swapStruct(ml); |
3890 | outs() << indent << "\t\t entsize " << ml.entsize << "\n"; |
3891 | outs() << indent << "\t\t count " << ml.count << "\n"; |
3892 | |
3893 | p += sizeof(struct method_list64_t); |
3894 | offset += sizeof(struct method_list64_t); |
3895 | for (i = 0; i < ml.count; i++) { |
3896 | r = get_pointer_64(p, offset, left, S, info); |
3897 | if (r == nullptr) |
3898 | return; |
3899 | memset(&m, '\0', sizeof(struct method64_t)); |
3900 | if (left < sizeof(struct method64_t)) { |
3901 | memcpy(&m, r, left); |
3902 | outs() << indent << " (method_t extends past the end of the section)\n"; |
3903 | } else |
3904 | memcpy(&m, r, sizeof(struct method64_t)); |
3905 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3906 | swapStruct(m); |
3907 | |
3908 | outs() << indent << "\t\t name "; |
3909 | sym_name = get_symbol_64(offset + offsetof(struct method64_t, name)__builtin_offsetof(struct method64_t, name), S, |
3910 | info, n_value, m.name); |
3911 | if (n_value != 0) { |
3912 | if (info->verbose && sym_name != nullptr) |
3913 | outs() << sym_name; |
3914 | else |
3915 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3916 | if (m.name != 0) |
3917 | outs() << " + " << format("0x%" PRIx64"l" "x", m.name); |
3918 | } else |
3919 | outs() << format("0x%" PRIx64"l" "x", m.name); |
3920 | name = get_pointer_64(m.name + n_value, xoffset, left, xS, info); |
3921 | if (name != nullptr) |
3922 | outs() << format(" %.*s", left, name); |
3923 | outs() << "\n"; |
3924 | |
3925 | outs() << indent << "\t\t types "; |
3926 | sym_name = get_symbol_64(offset + offsetof(struct method64_t, types)__builtin_offsetof(struct method64_t, types), S, |
3927 | info, n_value, m.types); |
3928 | if (n_value != 0) { |
3929 | if (info->verbose && sym_name != nullptr) |
3930 | outs() << sym_name; |
3931 | else |
3932 | outs() << format("0x%" PRIx64"l" "x", n_value); |
3933 | if (m.types != 0) |
3934 | outs() << " + " << format("0x%" PRIx64"l" "x", m.types); |
3935 | } else |
3936 | outs() << format("0x%" PRIx64"l" "x", m.types); |
3937 | name = get_pointer_64(m.types + n_value, xoffset, left, xS, info); |
3938 | if (name != nullptr) |
3939 | outs() << format(" %.*s", left, name); |
3940 | outs() << "\n"; |
3941 | |
3942 | outs() << indent << "\t\t imp "; |
3943 | name = get_symbol_64(offset + offsetof(struct method64_t, imp)__builtin_offsetof(struct method64_t, imp), S, info, |
3944 | n_value, m.imp); |
3945 | if (info->verbose && name == nullptr) { |
3946 | if (n_value != 0) { |
3947 | outs() << format("0x%" PRIx64"l" "x", n_value) << " "; |
3948 | if (m.imp != 0) |
3949 | outs() << "+ " << format("0x%" PRIx64"l" "x", m.imp) << " "; |
3950 | } else |
3951 | outs() << format("0x%" PRIx64"l" "x", m.imp) << " "; |
3952 | } |
3953 | if (name != nullptr) |
3954 | outs() << name; |
3955 | outs() << "\n"; |
3956 | |
3957 | p += sizeof(struct method64_t); |
3958 | offset += sizeof(struct method64_t); |
3959 | } |
3960 | } |
3961 | |
3962 | static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info, |
3963 | const char *indent) { |
3964 | struct method_list32_t ml; |
3965 | struct method32_t m; |
3966 | const char *r, *name; |
3967 | uint32_t offset, xoffset, left, i; |
3968 | SectionRef S, xS; |
3969 | |
3970 | r = get_pointer_32(p, offset, left, S, info); |
3971 | if (r == nullptr) |
3972 | return; |
3973 | memset(&ml, '\0', sizeof(struct method_list32_t)); |
3974 | if (left < sizeof(struct method_list32_t)) { |
3975 | memcpy(&ml, r, left); |
3976 | outs() << " (method_list_t entends past the end of the section)\n"; |
3977 | } else |
3978 | memcpy(&ml, r, sizeof(struct method_list32_t)); |
3979 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3980 | swapStruct(ml); |
3981 | outs() << indent << "\t\t entsize " << ml.entsize << "\n"; |
3982 | outs() << indent << "\t\t count " << ml.count << "\n"; |
3983 | |
3984 | p += sizeof(struct method_list32_t); |
3985 | offset += sizeof(struct method_list32_t); |
3986 | for (i = 0; i < ml.count; i++) { |
3987 | r = get_pointer_32(p, offset, left, S, info); |
3988 | if (r == nullptr) |
3989 | return; |
3990 | memset(&m, '\0', sizeof(struct method32_t)); |
3991 | if (left < sizeof(struct method32_t)) { |
3992 | memcpy(&ml, r, left); |
3993 | outs() << indent << " (method_t entends past the end of the section)\n"; |
3994 | } else |
3995 | memcpy(&m, r, sizeof(struct method32_t)); |
3996 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
3997 | swapStruct(m); |
3998 | |
3999 | outs() << indent << "\t\t name " << format("0x%" PRIx32"x", m.name); |
4000 | name = get_pointer_32(m.name, xoffset, left, xS, info); |
4001 | if (name != nullptr) |
4002 | outs() << format(" %.*s", left, name); |
4003 | outs() << "\n"; |
4004 | |
4005 | outs() << indent << "\t\t types " << format("0x%" PRIx32"x", m.types); |
4006 | name = get_pointer_32(m.types, xoffset, left, xS, info); |
4007 | if (name != nullptr) |
4008 | outs() << format(" %.*s", left, name); |
4009 | outs() << "\n"; |
4010 | |
4011 | outs() << indent << "\t\t imp " << format("0x%" PRIx32"x", m.imp); |
4012 | name = get_symbol_32(offset + offsetof(struct method32_t, imp)__builtin_offsetof(struct method32_t, imp), S, info, |
4013 | m.imp); |
4014 | if (name != nullptr) |
4015 | outs() << " " << name; |
4016 | outs() << "\n"; |
4017 | |
4018 | p += sizeof(struct method32_t); |
4019 | offset += sizeof(struct method32_t); |
4020 | } |
4021 | } |
4022 | |
4023 | static bool print_method_list(uint32_t p, struct DisassembleInfo *info) { |
4024 | uint32_t offset, left, xleft; |
4025 | SectionRef S; |
4026 | struct objc_method_list_t method_list; |
4027 | struct objc_method_t method; |
4028 | const char *r, *methods, *name, *SymbolName; |
4029 | int32_t i; |
4030 | |
4031 | r = get_pointer_32(p, offset, left, S, info, true); |
4032 | if (r == nullptr) |
4033 | return true; |
4034 | |
4035 | outs() << "\n"; |
4036 | if (left > sizeof(struct objc_method_list_t)) { |
4037 | memcpy(&method_list, r, sizeof(struct objc_method_list_t)); |
4038 | } else { |
4039 | outs() << "\t\t objc_method_list extends past end of the section\n"; |
4040 | memset(&method_list, '\0', sizeof(struct objc_method_list_t)); |
4041 | memcpy(&method_list, r, left); |
4042 | } |
4043 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4044 | swapStruct(method_list); |
4045 | |
4046 | outs() << "\t\t obsolete " |
4047 | << format("0x%08" PRIx32"x", method_list.obsolete) << "\n"; |
4048 | outs() << "\t\t method_count " << method_list.method_count << "\n"; |
4049 | |
4050 | methods = r + sizeof(struct objc_method_list_t); |
4051 | for (i = 0; i < method_list.method_count; i++) { |
4052 | if ((i + 1) * sizeof(struct objc_method_t) > left) { |
4053 | outs() << "\t\t remaining method's extend past the of the section\n"; |
4054 | break; |
4055 | } |
4056 | memcpy(&method, methods + i * sizeof(struct objc_method_t), |
4057 | sizeof(struct objc_method_t)); |
4058 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4059 | swapStruct(method); |
4060 | |
4061 | outs() << "\t\t method_name " |
4062 | << format("0x%08" PRIx32"x", method.method_name); |
4063 | if (info->verbose) { |
4064 | name = get_pointer_32(method.method_name, offset, xleft, S, info, true); |
4065 | if (name != nullptr) |
4066 | outs() << format(" %.*s", xleft, name); |
4067 | else |
4068 | outs() << " (not in an __OBJC section)"; |
4069 | } |
4070 | outs() << "\n"; |
4071 | |
4072 | outs() << "\t\t method_types " |
4073 | << format("0x%08" PRIx32"x", method.method_types); |
4074 | if (info->verbose) { |
4075 | name = get_pointer_32(method.method_types, offset, xleft, S, info, true); |
4076 | if (name != nullptr) |
4077 | outs() << format(" %.*s", xleft, name); |
4078 | else |
4079 | outs() << " (not in an __OBJC section)"; |
4080 | } |
4081 | outs() << "\n"; |
4082 | |
4083 | outs() << "\t\t method_imp " |
4084 | << format("0x%08" PRIx32"x", method.method_imp) << " "; |
4085 | if (info->verbose) { |
4086 | SymbolName = GuessSymbolName(method.method_imp, info->AddrMap); |
4087 | if (SymbolName != nullptr) |
4088 | outs() << SymbolName; |
4089 | } |
4090 | outs() << "\n"; |
4091 | } |
4092 | return false; |
4093 | } |
4094 | |
4095 | static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) { |
4096 | struct protocol_list64_t pl; |
4097 | uint64_t q, n_value; |
4098 | struct protocol64_t pc; |
4099 | const char *r; |
4100 | uint32_t offset, xoffset, left, i; |
4101 | SectionRef S, xS; |
4102 | const char *name, *sym_name; |
4103 | |
4104 | r = get_pointer_64(p, offset, left, S, info); |
4105 | if (r == nullptr) |
4106 | return; |
4107 | memset(&pl, '\0', sizeof(struct protocol_list64_t)); |
4108 | if (left < sizeof(struct protocol_list64_t)) { |
4109 | memcpy(&pl, r, left); |
4110 | outs() << " (protocol_list_t entends past the end of the section)\n"; |
4111 | } else |
4112 | memcpy(&pl, r, sizeof(struct protocol_list64_t)); |
4113 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4114 | swapStruct(pl); |
4115 | outs() << " count " << pl.count << "\n"; |
4116 | |
4117 | p += sizeof(struct protocol_list64_t); |
4118 | offset += sizeof(struct protocol_list64_t); |
4119 | for (i = 0; i < pl.count; i++) { |
4120 | r = get_pointer_64(p, offset, left, S, info); |
4121 | if (r == nullptr) |
4122 | return; |
4123 | q = 0; |
4124 | if (left < sizeof(uint64_t)) { |
4125 | memcpy(&q, r, left); |
4126 | outs() << " (protocol_t * entends past the end of the section)\n"; |
4127 | } else |
4128 | memcpy(&q, r, sizeof(uint64_t)); |
4129 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4130 | sys::swapByteOrder(q); |
4131 | |
4132 | outs() << "\t\t list[" << i << "] "; |
4133 | sym_name = get_symbol_64(offset, S, info, n_value, q); |
4134 | if (n_value != 0) { |
4135 | if (info->verbose && sym_name != nullptr) |
4136 | outs() << sym_name; |
4137 | else |
4138 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4139 | if (q != 0) |
4140 | outs() << " + " << format("0x%" PRIx64"l" "x", q); |
4141 | } else |
4142 | outs() << format("0x%" PRIx64"l" "x", q); |
4143 | outs() << " (struct protocol_t *)\n"; |
4144 | |
4145 | r = get_pointer_64(q + n_value, offset, left, S, info); |
4146 | if (r == nullptr) |
4147 | return; |
4148 | memset(&pc, '\0', sizeof(struct protocol64_t)); |
4149 | if (left < sizeof(struct protocol64_t)) { |
4150 | memcpy(&pc, r, left); |
4151 | outs() << " (protocol_t entends past the end of the section)\n"; |
4152 | } else |
4153 | memcpy(&pc, r, sizeof(struct protocol64_t)); |
4154 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4155 | swapStruct(pc); |
4156 | |
4157 | outs() << "\t\t\t isa " << format("0x%" PRIx64"l" "x", pc.isa) << "\n"; |
4158 | |
4159 | outs() << "\t\t\t name "; |
4160 | sym_name = get_symbol_64(offset + offsetof(struct protocol64_t, name)__builtin_offsetof(struct protocol64_t, name), S, |
4161 | info, n_value, pc.name); |
4162 | if (n_value != 0) { |
4163 | if (info->verbose && sym_name != nullptr) |
4164 | outs() << sym_name; |
4165 | else |
4166 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4167 | if (pc.name != 0) |
4168 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.name); |
4169 | } else |
4170 | outs() << format("0x%" PRIx64"l" "x", pc.name); |
4171 | name = get_pointer_64(pc.name + n_value, xoffset, left, xS, info); |
4172 | if (name != nullptr) |
4173 | outs() << format(" %.*s", left, name); |
4174 | outs() << "\n"; |
4175 | |
4176 | outs() << "\t\t\tprotocols " << format("0x%" PRIx64"l" "x", pc.protocols) << "\n"; |
4177 | |
4178 | outs() << "\t\t instanceMethods "; |
4179 | sym_name = |
4180 | get_symbol_64(offset + offsetof(struct protocol64_t, instanceMethods)__builtin_offsetof(struct protocol64_t, instanceMethods), |
4181 | S, info, n_value, pc.instanceMethods); |
4182 | if (n_value != 0) { |
4183 | if (info->verbose && sym_name != nullptr) |
4184 | outs() << sym_name; |
4185 | else |
4186 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4187 | if (pc.instanceMethods != 0) |
4188 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.instanceMethods); |
4189 | } else |
4190 | outs() << format("0x%" PRIx64"l" "x", pc.instanceMethods); |
4191 | outs() << " (struct method_list_t *)\n"; |
4192 | if (pc.instanceMethods + n_value != 0) |
4193 | print_method_list64_t(pc.instanceMethods + n_value, info, "\t"); |
4194 | |
4195 | outs() << "\t\t classMethods "; |
4196 | sym_name = |
4197 | get_symbol_64(offset + offsetof(struct protocol64_t, classMethods)__builtin_offsetof(struct protocol64_t, classMethods), S, |
4198 | info, n_value, pc.classMethods); |
4199 | if (n_value != 0) { |
4200 | if (info->verbose && sym_name != nullptr) |
4201 | outs() << sym_name; |
4202 | else |
4203 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4204 | if (pc.classMethods != 0) |
4205 | outs() << " + " << format("0x%" PRIx64"l" "x", pc.classMethods); |
4206 | } else |
4207 | outs() << format("0x%" PRIx64"l" "x", pc.classMethods); |
4208 | outs() << " (struct method_list_t *)\n"; |
4209 | if (pc.classMethods + n_value != 0) |
4210 | print_method_list64_t(pc.classMethods + n_value, info, "\t"); |
4211 | |
4212 | outs() << "\t optionalInstanceMethods " |
4213 | << format("0x%" PRIx64"l" "x", pc.optionalInstanceMethods) << "\n"; |
4214 | outs() << "\t optionalClassMethods " |
4215 | << format("0x%" PRIx64"l" "x", pc.optionalClassMethods) << "\n"; |
4216 | outs() << "\t instanceProperties " |
4217 | << format("0x%" PRIx64"l" "x", pc.instanceProperties) << "\n"; |
4218 | |
4219 | p += sizeof(uint64_t); |
4220 | offset += sizeof(uint64_t); |
4221 | } |
4222 | } |
4223 | |
4224 | static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) { |
4225 | struct protocol_list32_t pl; |
4226 | uint32_t q; |
4227 | struct protocol32_t pc; |
4228 | const char *r; |
4229 | uint32_t offset, xoffset, left, i; |
4230 | SectionRef S, xS; |
4231 | const char *name; |
4232 | |
4233 | r = get_pointer_32(p, offset, left, S, info); |
4234 | if (r == nullptr) |
4235 | return; |
4236 | memset(&pl, '\0', sizeof(struct protocol_list32_t)); |
4237 | if (left < sizeof(struct protocol_list32_t)) { |
4238 | memcpy(&pl, r, left); |
4239 | outs() << " (protocol_list_t entends past the end of the section)\n"; |
4240 | } else |
4241 | memcpy(&pl, r, sizeof(struct protocol_list32_t)); |
4242 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4243 | swapStruct(pl); |
4244 | outs() << " count " << pl.count << "\n"; |
4245 | |
4246 | p += sizeof(struct protocol_list32_t); |
4247 | offset += sizeof(struct protocol_list32_t); |
4248 | for (i = 0; i < pl.count; i++) { |
4249 | r = get_pointer_32(p, offset, left, S, info); |
4250 | if (r == nullptr) |
4251 | return; |
4252 | q = 0; |
4253 | if (left < sizeof(uint32_t)) { |
4254 | memcpy(&q, r, left); |
4255 | outs() << " (protocol_t * entends past the end of the section)\n"; |
4256 | } else |
4257 | memcpy(&q, r, sizeof(uint32_t)); |
4258 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4259 | sys::swapByteOrder(q); |
4260 | outs() << "\t\t list[" << i << "] " << format("0x%" PRIx32"x", q) |
4261 | << " (struct protocol_t *)\n"; |
4262 | r = get_pointer_32(q, offset, left, S, info); |
4263 | if (r == nullptr) |
4264 | return; |
4265 | memset(&pc, '\0', sizeof(struct protocol32_t)); |
4266 | if (left < sizeof(struct protocol32_t)) { |
4267 | memcpy(&pc, r, left); |
4268 | outs() << " (protocol_t entends past the end of the section)\n"; |
4269 | } else |
4270 | memcpy(&pc, r, sizeof(struct protocol32_t)); |
4271 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4272 | swapStruct(pc); |
4273 | outs() << "\t\t\t isa " << format("0x%" PRIx32"x", pc.isa) << "\n"; |
4274 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", pc.name); |
4275 | name = get_pointer_32(pc.name, xoffset, left, xS, info); |
4276 | if (name != nullptr) |
4277 | outs() << format(" %.*s", left, name); |
4278 | outs() << "\n"; |
4279 | outs() << "\t\t\tprotocols " << format("0x%" PRIx32"x", pc.protocols) << "\n"; |
4280 | outs() << "\t\t instanceMethods " |
4281 | << format("0x%" PRIx32"x", pc.instanceMethods) |
4282 | << " (struct method_list_t *)\n"; |
4283 | if (pc.instanceMethods != 0) |
4284 | print_method_list32_t(pc.instanceMethods, info, "\t"); |
4285 | outs() << "\t\t classMethods " << format("0x%" PRIx32"x", pc.classMethods) |
4286 | << " (struct method_list_t *)\n"; |
4287 | if (pc.classMethods != 0) |
4288 | print_method_list32_t(pc.classMethods, info, "\t"); |
4289 | outs() << "\t optionalInstanceMethods " |
4290 | << format("0x%" PRIx32"x", pc.optionalInstanceMethods) << "\n"; |
4291 | outs() << "\t optionalClassMethods " |
4292 | << format("0x%" PRIx32"x", pc.optionalClassMethods) << "\n"; |
4293 | outs() << "\t instanceProperties " |
4294 | << format("0x%" PRIx32"x", pc.instanceProperties) << "\n"; |
4295 | p += sizeof(uint32_t); |
4296 | offset += sizeof(uint32_t); |
4297 | } |
4298 | } |
4299 | |
4300 | static void print_indent(uint32_t indent) { |
4301 | for (uint32_t i = 0; i < indent;) { |
4302 | if (indent - i >= 8) { |
4303 | outs() << "\t"; |
4304 | i += 8; |
4305 | } else { |
4306 | for (uint32_t j = i; j < indent; j++) |
4307 | outs() << " "; |
4308 | return; |
4309 | } |
4310 | } |
4311 | } |
4312 | |
4313 | static bool print_method_description_list(uint32_t p, uint32_t indent, |
4314 | struct DisassembleInfo *info) { |
4315 | uint32_t offset, left, xleft; |
4316 | SectionRef S; |
4317 | struct objc_method_description_list_t mdl; |
4318 | struct objc_method_description_t md; |
4319 | const char *r, *list, *name; |
4320 | int32_t i; |
4321 | |
4322 | r = get_pointer_32(p, offset, left, S, info, true); |
4323 | if (r == nullptr) |
4324 | return true; |
4325 | |
4326 | outs() << "\n"; |
4327 | if (left > sizeof(struct objc_method_description_list_t)) { |
4328 | memcpy(&mdl, r, sizeof(struct objc_method_description_list_t)); |
4329 | } else { |
4330 | print_indent(indent); |
4331 | outs() << " objc_method_description_list extends past end of the section\n"; |
4332 | memset(&mdl, '\0', sizeof(struct objc_method_description_list_t)); |
4333 | memcpy(&mdl, r, left); |
4334 | } |
4335 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4336 | swapStruct(mdl); |
4337 | |
4338 | print_indent(indent); |
4339 | outs() << " count " << mdl.count << "\n"; |
4340 | |
4341 | list = r + sizeof(struct objc_method_description_list_t); |
4342 | for (i = 0; i < mdl.count; i++) { |
4343 | if ((i + 1) * sizeof(struct objc_method_description_t) > left) { |
4344 | print_indent(indent); |
4345 | outs() << " remaining list entries extend past the of the section\n"; |
4346 | break; |
4347 | } |
4348 | print_indent(indent); |
4349 | outs() << " list[" << i << "]\n"; |
4350 | memcpy(&md, list + i * sizeof(struct objc_method_description_t), |
4351 | sizeof(struct objc_method_description_t)); |
4352 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4353 | swapStruct(md); |
4354 | |
4355 | print_indent(indent); |
4356 | outs() << " name " << format("0x%08" PRIx32"x", md.name); |
4357 | if (info->verbose) { |
4358 | name = get_pointer_32(md.name, offset, xleft, S, info, true); |
4359 | if (name != nullptr) |
4360 | outs() << format(" %.*s", xleft, name); |
4361 | else |
4362 | outs() << " (not in an __OBJC section)"; |
4363 | } |
4364 | outs() << "\n"; |
4365 | |
4366 | print_indent(indent); |
4367 | outs() << " types " << format("0x%08" PRIx32"x", md.types); |
4368 | if (info->verbose) { |
4369 | name = get_pointer_32(md.types, offset, xleft, S, info, true); |
4370 | if (name != nullptr) |
4371 | outs() << format(" %.*s", xleft, name); |
4372 | else |
4373 | outs() << " (not in an __OBJC section)"; |
4374 | } |
4375 | outs() << "\n"; |
4376 | } |
4377 | return false; |
4378 | } |
4379 | |
4380 | static bool print_protocol_list(uint32_t p, uint32_t indent, |
4381 | struct DisassembleInfo *info); |
4382 | |
4383 | static bool print_protocol(uint32_t p, uint32_t indent, |
4384 | struct DisassembleInfo *info) { |
4385 | uint32_t offset, left; |
4386 | SectionRef S; |
4387 | struct objc_protocol_t protocol; |
4388 | const char *r, *name; |
4389 | |
4390 | r = get_pointer_32(p, offset, left, S, info, true); |
4391 | if (r == nullptr) |
4392 | return true; |
4393 | |
4394 | outs() << "\n"; |
4395 | if (left >= sizeof(struct objc_protocol_t)) { |
4396 | memcpy(&protocol, r, sizeof(struct objc_protocol_t)); |
4397 | } else { |
4398 | print_indent(indent); |
4399 | outs() << " Protocol extends past end of the section\n"; |
4400 | memset(&protocol, '\0', sizeof(struct objc_protocol_t)); |
4401 | memcpy(&protocol, r, left); |
4402 | } |
4403 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4404 | swapStruct(protocol); |
4405 | |
4406 | print_indent(indent); |
4407 | outs() << " isa " << format("0x%08" PRIx32"x", protocol.isa) |
4408 | << "\n"; |
4409 | |
4410 | print_indent(indent); |
4411 | outs() << " protocol_name " |
4412 | << format("0x%08" PRIx32"x", protocol.protocol_name); |
4413 | if (info->verbose) { |
4414 | name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true); |
4415 | if (name != nullptr) |
4416 | outs() << format(" %.*s", left, name); |
4417 | else |
4418 | outs() << " (not in an __OBJC section)"; |
4419 | } |
4420 | outs() << "\n"; |
4421 | |
4422 | print_indent(indent); |
4423 | outs() << " protocol_list " |
4424 | << format("0x%08" PRIx32"x", protocol.protocol_list); |
4425 | if (print_protocol_list(protocol.protocol_list, indent + 4, info)) |
4426 | outs() << " (not in an __OBJC section)\n"; |
4427 | |
4428 | print_indent(indent); |
4429 | outs() << " instance_methods " |
4430 | << format("0x%08" PRIx32"x", protocol.instance_methods); |
4431 | if (print_method_description_list(protocol.instance_methods, indent, info)) |
4432 | outs() << " (not in an __OBJC section)\n"; |
4433 | |
4434 | print_indent(indent); |
4435 | outs() << " class_methods " |
4436 | << format("0x%08" PRIx32"x", protocol.class_methods); |
4437 | if (print_method_description_list(protocol.class_methods, indent, info)) |
4438 | outs() << " (not in an __OBJC section)\n"; |
4439 | |
4440 | return false; |
4441 | } |
4442 | |
4443 | static bool print_protocol_list(uint32_t p, uint32_t indent, |
4444 | struct DisassembleInfo *info) { |
4445 | uint32_t offset, left, l; |
4446 | SectionRef S; |
4447 | struct objc_protocol_list_t protocol_list; |
4448 | const char *r, *list; |
4449 | int32_t i; |
4450 | |
4451 | r = get_pointer_32(p, offset, left, S, info, true); |
4452 | if (r == nullptr) |
4453 | return true; |
4454 | |
4455 | outs() << "\n"; |
4456 | if (left > sizeof(struct objc_protocol_list_t)) { |
4457 | memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t)); |
4458 | } else { |
4459 | outs() << "\t\t objc_protocol_list_t extends past end of the section\n"; |
4460 | memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t)); |
4461 | memcpy(&protocol_list, r, left); |
4462 | } |
4463 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4464 | swapStruct(protocol_list); |
4465 | |
4466 | print_indent(indent); |
4467 | outs() << " next " << format("0x%08" PRIx32"x", protocol_list.next) |
4468 | << "\n"; |
4469 | print_indent(indent); |
4470 | outs() << " count " << protocol_list.count << "\n"; |
4471 | |
4472 | list = r + sizeof(struct objc_protocol_list_t); |
4473 | for (i = 0; i < protocol_list.count; i++) { |
4474 | if ((i + 1) * sizeof(uint32_t) > left) { |
4475 | outs() << "\t\t remaining list entries extend past the of the section\n"; |
4476 | break; |
4477 | } |
4478 | memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t)); |
4479 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4480 | sys::swapByteOrder(l); |
4481 | |
4482 | print_indent(indent); |
4483 | outs() << " list[" << i << "] " << format("0x%08" PRIx32"x", l); |
4484 | if (print_protocol(l, indent, info)) |
4485 | outs() << "(not in an __OBJC section)\n"; |
4486 | } |
4487 | return false; |
4488 | } |
4489 | |
4490 | static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) { |
4491 | struct ivar_list64_t il; |
4492 | struct ivar64_t i; |
4493 | const char *r; |
4494 | uint32_t offset, xoffset, left, j; |
4495 | SectionRef S, xS; |
4496 | const char *name, *sym_name, *ivar_offset_p; |
4497 | uint64_t ivar_offset, n_value; |
4498 | |
4499 | r = get_pointer_64(p, offset, left, S, info); |
4500 | if (r == nullptr) |
4501 | return; |
4502 | memset(&il, '\0', sizeof(struct ivar_list64_t)); |
4503 | if (left < sizeof(struct ivar_list64_t)) { |
4504 | memcpy(&il, r, left); |
4505 | outs() << " (ivar_list_t entends past the end of the section)\n"; |
4506 | } else |
4507 | memcpy(&il, r, sizeof(struct ivar_list64_t)); |
4508 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4509 | swapStruct(il); |
4510 | outs() << " entsize " << il.entsize << "\n"; |
4511 | outs() << " count " << il.count << "\n"; |
4512 | |
4513 | p += sizeof(struct ivar_list64_t); |
4514 | offset += sizeof(struct ivar_list64_t); |
4515 | for (j = 0; j < il.count; j++) { |
4516 | r = get_pointer_64(p, offset, left, S, info); |
4517 | if (r == nullptr) |
4518 | return; |
4519 | memset(&i, '\0', sizeof(struct ivar64_t)); |
4520 | if (left < sizeof(struct ivar64_t)) { |
4521 | memcpy(&i, r, left); |
4522 | outs() << " (ivar_t entends past the end of the section)\n"; |
4523 | } else |
4524 | memcpy(&i, r, sizeof(struct ivar64_t)); |
4525 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4526 | swapStruct(i); |
4527 | |
4528 | outs() << "\t\t\t offset "; |
4529 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, offset)__builtin_offsetof(struct ivar64_t, offset), S, |
4530 | info, n_value, i.offset); |
4531 | if (n_value != 0) { |
4532 | if (info->verbose && sym_name != nullptr) |
4533 | outs() << sym_name; |
4534 | else |
4535 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4536 | if (i.offset != 0) |
4537 | outs() << " + " << format("0x%" PRIx64"l" "x", i.offset); |
4538 | } else |
4539 | outs() << format("0x%" PRIx64"l" "x", i.offset); |
4540 | ivar_offset_p = get_pointer_64(i.offset + n_value, xoffset, left, xS, info); |
4541 | if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { |
4542 | memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); |
4543 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4544 | sys::swapByteOrder(ivar_offset); |
4545 | outs() << " " << ivar_offset << "\n"; |
4546 | } else |
4547 | outs() << "\n"; |
4548 | |
4549 | outs() << "\t\t\t name "; |
4550 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, name)__builtin_offsetof(struct ivar64_t, name), S, info, |
4551 | n_value, i.name); |
4552 | if (n_value != 0) { |
4553 | if (info->verbose && sym_name != nullptr) |
4554 | outs() << sym_name; |
4555 | else |
4556 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4557 | if (i.name != 0) |
4558 | outs() << " + " << format("0x%" PRIx64"l" "x", i.name); |
4559 | } else |
4560 | outs() << format("0x%" PRIx64"l" "x", i.name); |
4561 | name = get_pointer_64(i.name + n_value, xoffset, left, xS, info); |
4562 | if (name != nullptr) |
4563 | outs() << format(" %.*s", left, name); |
4564 | outs() << "\n"; |
4565 | |
4566 | outs() << "\t\t\t type "; |
4567 | sym_name = get_symbol_64(offset + offsetof(struct ivar64_t, type)__builtin_offsetof(struct ivar64_t, type), S, info, |
4568 | n_value, i.name); |
4569 | name = get_pointer_64(i.type + n_value, xoffset, left, xS, info); |
4570 | if (n_value != 0) { |
4571 | if (info->verbose && sym_name != nullptr) |
4572 | outs() << sym_name; |
4573 | else |
4574 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4575 | if (i.type != 0) |
4576 | outs() << " + " << format("0x%" PRIx64"l" "x", i.type); |
4577 | } else |
4578 | outs() << format("0x%" PRIx64"l" "x", i.type); |
4579 | if (name != nullptr) |
4580 | outs() << format(" %.*s", left, name); |
4581 | outs() << "\n"; |
4582 | |
4583 | outs() << "\t\t\talignment " << i.alignment << "\n"; |
4584 | outs() << "\t\t\t size " << i.size << "\n"; |
4585 | |
4586 | p += sizeof(struct ivar64_t); |
4587 | offset += sizeof(struct ivar64_t); |
4588 | } |
4589 | } |
4590 | |
4591 | static void print_ivar_list32_t(uint32_t p, struct DisassembleInfo *info) { |
4592 | struct ivar_list32_t il; |
4593 | struct ivar32_t i; |
4594 | const char *r; |
4595 | uint32_t offset, xoffset, left, j; |
4596 | SectionRef S, xS; |
4597 | const char *name, *ivar_offset_p; |
4598 | uint32_t ivar_offset; |
4599 | |
4600 | r = get_pointer_32(p, offset, left, S, info); |
4601 | if (r == nullptr) |
4602 | return; |
4603 | memset(&il, '\0', sizeof(struct ivar_list32_t)); |
4604 | if (left < sizeof(struct ivar_list32_t)) { |
4605 | memcpy(&il, r, left); |
4606 | outs() << " (ivar_list_t entends past the end of the section)\n"; |
4607 | } else |
4608 | memcpy(&il, r, sizeof(struct ivar_list32_t)); |
4609 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4610 | swapStruct(il); |
4611 | outs() << " entsize " << il.entsize << "\n"; |
4612 | outs() << " count " << il.count << "\n"; |
4613 | |
4614 | p += sizeof(struct ivar_list32_t); |
4615 | offset += sizeof(struct ivar_list32_t); |
4616 | for (j = 0; j < il.count; j++) { |
4617 | r = get_pointer_32(p, offset, left, S, info); |
4618 | if (r == nullptr) |
4619 | return; |
4620 | memset(&i, '\0', sizeof(struct ivar32_t)); |
4621 | if (left < sizeof(struct ivar32_t)) { |
4622 | memcpy(&i, r, left); |
4623 | outs() << " (ivar_t entends past the end of the section)\n"; |
4624 | } else |
4625 | memcpy(&i, r, sizeof(struct ivar32_t)); |
4626 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4627 | swapStruct(i); |
4628 | |
4629 | outs() << "\t\t\t offset " << format("0x%" PRIx32"x", i.offset); |
4630 | ivar_offset_p = get_pointer_32(i.offset, xoffset, left, xS, info); |
4631 | if (ivar_offset_p != nullptr && left >= sizeof(*ivar_offset_p)) { |
4632 | memcpy(&ivar_offset, ivar_offset_p, sizeof(ivar_offset)); |
4633 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4634 | sys::swapByteOrder(ivar_offset); |
4635 | outs() << " " << ivar_offset << "\n"; |
4636 | } else |
4637 | outs() << "\n"; |
4638 | |
4639 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", i.name); |
4640 | name = get_pointer_32(i.name, xoffset, left, xS, info); |
4641 | if (name != nullptr) |
4642 | outs() << format(" %.*s", left, name); |
4643 | outs() << "\n"; |
4644 | |
4645 | outs() << "\t\t\t type " << format("0x%" PRIx32"x", i.type); |
4646 | name = get_pointer_32(i.type, xoffset, left, xS, info); |
4647 | if (name != nullptr) |
4648 | outs() << format(" %.*s", left, name); |
4649 | outs() << "\n"; |
4650 | |
4651 | outs() << "\t\t\talignment " << i.alignment << "\n"; |
4652 | outs() << "\t\t\t size " << i.size << "\n"; |
4653 | |
4654 | p += sizeof(struct ivar32_t); |
4655 | offset += sizeof(struct ivar32_t); |
4656 | } |
4657 | } |
4658 | |
4659 | static void print_objc_property_list64(uint64_t p, |
4660 | struct DisassembleInfo *info) { |
4661 | struct objc_property_list64 opl; |
4662 | struct objc_property64 op; |
4663 | const char *r; |
4664 | uint32_t offset, xoffset, left, j; |
4665 | SectionRef S, xS; |
4666 | const char *name, *sym_name; |
4667 | uint64_t n_value; |
4668 | |
4669 | r = get_pointer_64(p, offset, left, S, info); |
4670 | if (r == nullptr) |
4671 | return; |
4672 | memset(&opl, '\0', sizeof(struct objc_property_list64)); |
4673 | if (left < sizeof(struct objc_property_list64)) { |
4674 | memcpy(&opl, r, left); |
4675 | outs() << " (objc_property_list entends past the end of the section)\n"; |
4676 | } else |
4677 | memcpy(&opl, r, sizeof(struct objc_property_list64)); |
4678 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4679 | swapStruct(opl); |
4680 | outs() << " entsize " << opl.entsize << "\n"; |
4681 | outs() << " count " << opl.count << "\n"; |
4682 | |
4683 | p += sizeof(struct objc_property_list64); |
4684 | offset += sizeof(struct objc_property_list64); |
4685 | for (j = 0; j < opl.count; j++) { |
4686 | r = get_pointer_64(p, offset, left, S, info); |
4687 | if (r == nullptr) |
4688 | return; |
4689 | memset(&op, '\0', sizeof(struct objc_property64)); |
4690 | if (left < sizeof(struct objc_property64)) { |
4691 | memcpy(&op, r, left); |
4692 | outs() << " (objc_property entends past the end of the section)\n"; |
4693 | } else |
4694 | memcpy(&op, r, sizeof(struct objc_property64)); |
4695 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4696 | swapStruct(op); |
4697 | |
4698 | outs() << "\t\t\t name "; |
4699 | sym_name = get_symbol_64(offset + offsetof(struct objc_property64, name)__builtin_offsetof(struct objc_property64, name), S, |
4700 | info, n_value, op.name); |
4701 | if (n_value != 0) { |
4702 | if (info->verbose && sym_name != nullptr) |
4703 | outs() << sym_name; |
4704 | else |
4705 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4706 | if (op.name != 0) |
4707 | outs() << " + " << format("0x%" PRIx64"l" "x", op.name); |
4708 | } else |
4709 | outs() << format("0x%" PRIx64"l" "x", op.name); |
4710 | name = get_pointer_64(op.name + n_value, xoffset, left, xS, info); |
4711 | if (name != nullptr) |
4712 | outs() << format(" %.*s", left, name); |
4713 | outs() << "\n"; |
4714 | |
4715 | outs() << "\t\t\tattributes "; |
4716 | sym_name = |
4717 | get_symbol_64(offset + offsetof(struct objc_property64, attributes)__builtin_offsetof(struct objc_property64, attributes), S, |
4718 | info, n_value, op.attributes); |
4719 | if (n_value != 0) { |
4720 | if (info->verbose && sym_name != nullptr) |
4721 | outs() << sym_name; |
4722 | else |
4723 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4724 | if (op.attributes != 0) |
4725 | outs() << " + " << format("0x%" PRIx64"l" "x", op.attributes); |
4726 | } else |
4727 | outs() << format("0x%" PRIx64"l" "x", op.attributes); |
4728 | name = get_pointer_64(op.attributes + n_value, xoffset, left, xS, info); |
4729 | if (name != nullptr) |
4730 | outs() << format(" %.*s", left, name); |
4731 | outs() << "\n"; |
4732 | |
4733 | p += sizeof(struct objc_property64); |
4734 | offset += sizeof(struct objc_property64); |
4735 | } |
4736 | } |
4737 | |
4738 | static void print_objc_property_list32(uint32_t p, |
4739 | struct DisassembleInfo *info) { |
4740 | struct objc_property_list32 opl; |
4741 | struct objc_property32 op; |
4742 | const char *r; |
4743 | uint32_t offset, xoffset, left, j; |
4744 | SectionRef S, xS; |
4745 | const char *name; |
4746 | |
4747 | r = get_pointer_32(p, offset, left, S, info); |
4748 | if (r == nullptr) |
4749 | return; |
4750 | memset(&opl, '\0', sizeof(struct objc_property_list32)); |
4751 | if (left < sizeof(struct objc_property_list32)) { |
4752 | memcpy(&opl, r, left); |
4753 | outs() << " (objc_property_list entends past the end of the section)\n"; |
4754 | } else |
4755 | memcpy(&opl, r, sizeof(struct objc_property_list32)); |
4756 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4757 | swapStruct(opl); |
4758 | outs() << " entsize " << opl.entsize << "\n"; |
4759 | outs() << " count " << opl.count << "\n"; |
4760 | |
4761 | p += sizeof(struct objc_property_list32); |
4762 | offset += sizeof(struct objc_property_list32); |
4763 | for (j = 0; j < opl.count; j++) { |
4764 | r = get_pointer_32(p, offset, left, S, info); |
4765 | if (r == nullptr) |
4766 | return; |
4767 | memset(&op, '\0', sizeof(struct objc_property32)); |
4768 | if (left < sizeof(struct objc_property32)) { |
4769 | memcpy(&op, r, left); |
4770 | outs() << " (objc_property entends past the end of the section)\n"; |
4771 | } else |
4772 | memcpy(&op, r, sizeof(struct objc_property32)); |
4773 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4774 | swapStruct(op); |
4775 | |
4776 | outs() << "\t\t\t name " << format("0x%" PRIx32"x", op.name); |
4777 | name = get_pointer_32(op.name, xoffset, left, xS, info); |
4778 | if (name != nullptr) |
4779 | outs() << format(" %.*s", left, name); |
4780 | outs() << "\n"; |
4781 | |
4782 | outs() << "\t\t\tattributes " << format("0x%" PRIx32"x", op.attributes); |
4783 | name = get_pointer_32(op.attributes, xoffset, left, xS, info); |
4784 | if (name != nullptr) |
4785 | outs() << format(" %.*s", left, name); |
4786 | outs() << "\n"; |
4787 | |
4788 | p += sizeof(struct objc_property32); |
4789 | offset += sizeof(struct objc_property32); |
4790 | } |
4791 | } |
4792 | |
4793 | static bool print_class_ro64_t(uint64_t p, struct DisassembleInfo *info, |
4794 | bool &is_meta_class) { |
4795 | struct class_ro64_t cro; |
4796 | const char *r; |
4797 | uint32_t offset, xoffset, left; |
4798 | SectionRef S, xS; |
4799 | const char *name, *sym_name; |
4800 | uint64_t n_value; |
4801 | |
4802 | r = get_pointer_64(p, offset, left, S, info); |
4803 | if (r == nullptr || left < sizeof(struct class_ro64_t)) |
4804 | return false; |
4805 | memcpy(&cro, r, sizeof(struct class_ro64_t)); |
4806 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4807 | swapStruct(cro); |
4808 | outs() << " flags " << format("0x%" PRIx32"x", cro.flags); |
4809 | if (cro.flags & RO_META(1 << 0)) |
4810 | outs() << " RO_META"; |
4811 | if (cro.flags & RO_ROOT(1 << 1)) |
4812 | outs() << " RO_ROOT"; |
4813 | if (cro.flags & RO_HAS_CXX_STRUCTORS(1 << 2)) |
4814 | outs() << " RO_HAS_CXX_STRUCTORS"; |
4815 | outs() << "\n"; |
4816 | outs() << " instanceStart " << cro.instanceStart << "\n"; |
4817 | outs() << " instanceSize " << cro.instanceSize << "\n"; |
4818 | outs() << " reserved " << format("0x%" PRIx32"x", cro.reserved) |
4819 | << "\n"; |
4820 | outs() << " ivarLayout " << format("0x%" PRIx64"l" "x", cro.ivarLayout) |
4821 | << "\n"; |
4822 | print_layout_map64(cro.ivarLayout, info); |
4823 | |
4824 | outs() << " name "; |
4825 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, name)__builtin_offsetof(struct class_ro64_t, name), S, |
4826 | info, n_value, cro.name); |
4827 | if (n_value != 0) { |
4828 | if (info->verbose && sym_name != nullptr) |
4829 | outs() << sym_name; |
4830 | else |
4831 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4832 | if (cro.name != 0) |
4833 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.name); |
4834 | } else |
4835 | outs() << format("0x%" PRIx64"l" "x", cro.name); |
4836 | name = get_pointer_64(cro.name + n_value, xoffset, left, xS, info); |
4837 | if (name != nullptr) |
4838 | outs() << format(" %.*s", left, name); |
4839 | outs() << "\n"; |
4840 | |
4841 | outs() << " baseMethods "; |
4842 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, baseMethods)__builtin_offsetof(struct class_ro64_t, baseMethods), |
4843 | S, info, n_value, cro.baseMethods); |
4844 | if (n_value != 0) { |
4845 | if (info->verbose && sym_name != nullptr) |
4846 | outs() << sym_name; |
4847 | else |
4848 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4849 | if (cro.baseMethods != 0) |
4850 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseMethods); |
4851 | } else |
4852 | outs() << format("0x%" PRIx64"l" "x", cro.baseMethods); |
4853 | outs() << " (struct method_list_t *)\n"; |
4854 | if (cro.baseMethods + n_value != 0) |
4855 | print_method_list64_t(cro.baseMethods + n_value, info, ""); |
4856 | |
4857 | outs() << " baseProtocols "; |
4858 | sym_name = |
4859 | get_symbol_64(offset + offsetof(struct class_ro64_t, baseProtocols)__builtin_offsetof(struct class_ro64_t, baseProtocols), S, |
4860 | info, n_value, cro.baseProtocols); |
4861 | if (n_value != 0) { |
4862 | if (info->verbose && sym_name != nullptr) |
4863 | outs() << sym_name; |
4864 | else |
4865 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4866 | if (cro.baseProtocols != 0) |
4867 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseProtocols); |
4868 | } else |
4869 | outs() << format("0x%" PRIx64"l" "x", cro.baseProtocols); |
4870 | outs() << "\n"; |
4871 | if (cro.baseProtocols + n_value != 0) |
4872 | print_protocol_list64_t(cro.baseProtocols + n_value, info); |
4873 | |
4874 | outs() << " ivars "; |
4875 | sym_name = get_symbol_64(offset + offsetof(struct class_ro64_t, ivars)__builtin_offsetof(struct class_ro64_t, ivars), S, |
4876 | info, n_value, cro.ivars); |
4877 | if (n_value != 0) { |
4878 | if (info->verbose && sym_name != nullptr) |
4879 | outs() << sym_name; |
4880 | else |
4881 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4882 | if (cro.ivars != 0) |
4883 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.ivars); |
4884 | } else |
4885 | outs() << format("0x%" PRIx64"l" "x", cro.ivars); |
4886 | outs() << "\n"; |
4887 | if (cro.ivars + n_value != 0) |
4888 | print_ivar_list64_t(cro.ivars + n_value, info); |
4889 | |
4890 | outs() << " weakIvarLayout "; |
4891 | sym_name = |
4892 | get_symbol_64(offset + offsetof(struct class_ro64_t, weakIvarLayout)__builtin_offsetof(struct class_ro64_t, weakIvarLayout), S, |
4893 | info, n_value, cro.weakIvarLayout); |
4894 | if (n_value != 0) { |
4895 | if (info->verbose && sym_name != nullptr) |
4896 | outs() << sym_name; |
4897 | else |
4898 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4899 | if (cro.weakIvarLayout != 0) |
4900 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.weakIvarLayout); |
4901 | } else |
4902 | outs() << format("0x%" PRIx64"l" "x", cro.weakIvarLayout); |
4903 | outs() << "\n"; |
4904 | print_layout_map64(cro.weakIvarLayout + n_value, info); |
4905 | |
4906 | outs() << " baseProperties "; |
4907 | sym_name = |
4908 | get_symbol_64(offset + offsetof(struct class_ro64_t, baseProperties)__builtin_offsetof(struct class_ro64_t, baseProperties), S, |
4909 | info, n_value, cro.baseProperties); |
4910 | if (n_value != 0) { |
4911 | if (info->verbose && sym_name != nullptr) |
4912 | outs() << sym_name; |
4913 | else |
4914 | outs() << format("0x%" PRIx64"l" "x", n_value); |
4915 | if (cro.baseProperties != 0) |
4916 | outs() << " + " << format("0x%" PRIx64"l" "x", cro.baseProperties); |
4917 | } else |
4918 | outs() << format("0x%" PRIx64"l" "x", cro.baseProperties); |
4919 | outs() << "\n"; |
4920 | if (cro.baseProperties + n_value != 0) |
4921 | print_objc_property_list64(cro.baseProperties + n_value, info); |
4922 | |
4923 | is_meta_class = (cro.flags & RO_META(1 << 0)) != 0; |
4924 | return true; |
4925 | } |
4926 | |
4927 | static bool print_class_ro32_t(uint32_t p, struct DisassembleInfo *info, |
4928 | bool &is_meta_class) { |
4929 | struct class_ro32_t cro; |
4930 | const char *r; |
4931 | uint32_t offset, xoffset, left; |
4932 | SectionRef S, xS; |
4933 | const char *name; |
4934 | |
4935 | r = get_pointer_32(p, offset, left, S, info); |
4936 | if (r == nullptr) |
4937 | return false; |
4938 | memset(&cro, '\0', sizeof(struct class_ro32_t)); |
4939 | if (left < sizeof(struct class_ro32_t)) { |
4940 | memcpy(&cro, r, left); |
4941 | outs() << " (class_ro_t entends past the end of the section)\n"; |
4942 | } else |
4943 | memcpy(&cro, r, sizeof(struct class_ro32_t)); |
4944 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
4945 | swapStruct(cro); |
4946 | outs() << " flags " << format("0x%" PRIx32"x", cro.flags); |
4947 | if (cro.flags & RO_META(1 << 0)) |
4948 | outs() << " RO_META"; |
4949 | if (cro.flags & RO_ROOT(1 << 1)) |
4950 | outs() << " RO_ROOT"; |
4951 | if (cro.flags & RO_HAS_CXX_STRUCTORS(1 << 2)) |
4952 | outs() << " RO_HAS_CXX_STRUCTORS"; |
4953 | outs() << "\n"; |
4954 | outs() << " instanceStart " << cro.instanceStart << "\n"; |
4955 | outs() << " instanceSize " << cro.instanceSize << "\n"; |
4956 | outs() << " ivarLayout " << format("0x%" PRIx32"x", cro.ivarLayout) |
4957 | << "\n"; |
4958 | print_layout_map32(cro.ivarLayout, info); |
4959 | |
4960 | outs() << " name " << format("0x%" PRIx32"x", cro.name); |
4961 | name = get_pointer_32(cro.name, xoffset, left, xS, info); |
4962 | if (name != nullptr) |
4963 | outs() << format(" %.*s", left, name); |
4964 | outs() << "\n"; |
4965 | |
4966 | outs() << " baseMethods " |
4967 | << format("0x%" PRIx32"x", cro.baseMethods) |
4968 | << " (struct method_list_t *)\n"; |
4969 | if (cro.baseMethods != 0) |
4970 | print_method_list32_t(cro.baseMethods, info, ""); |
4971 | |
4972 | outs() << " baseProtocols " |
4973 | << format("0x%" PRIx32"x", cro.baseProtocols) << "\n"; |
4974 | if (cro.baseProtocols != 0) |
4975 | print_protocol_list32_t(cro.baseProtocols, info); |
4976 | outs() << " ivars " << format("0x%" PRIx32"x", cro.ivars) |
4977 | << "\n"; |
4978 | if (cro.ivars != 0) |
4979 | print_ivar_list32_t(cro.ivars, info); |
4980 | outs() << " weakIvarLayout " |
4981 | << format("0x%" PRIx32"x", cro.weakIvarLayout) << "\n"; |
4982 | print_layout_map32(cro.weakIvarLayout, info); |
4983 | outs() << " baseProperties " |
4984 | << format("0x%" PRIx32"x", cro.baseProperties) << "\n"; |
4985 | if (cro.baseProperties != 0) |
4986 | print_objc_property_list32(cro.baseProperties, info); |
4987 | is_meta_class = (cro.flags & RO_META(1 << 0)) != 0; |
4988 | return true; |
4989 | } |
4990 | |
4991 | static void print_class64_t(uint64_t p, struct DisassembleInfo *info) { |
4992 | struct class64_t c; |
4993 | const char *r; |
4994 | uint32_t offset, left; |
4995 | SectionRef S; |
4996 | const char *name; |
4997 | uint64_t isa_n_value, n_value; |
4998 | |
4999 | r = get_pointer_64(p, offset, left, S, info); |
5000 | if (r == nullptr || left < sizeof(struct class64_t)) |
5001 | return; |
5002 | memcpy(&c, r, sizeof(struct class64_t)); |
5003 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5004 | swapStruct(c); |
5005 | |
5006 | outs() << " isa " << format("0x%" PRIx64"l" "x", c.isa); |
5007 | name = get_symbol_64(offset + offsetof(struct class64_t, isa)__builtin_offsetof(struct class64_t, isa), S, info, |
5008 | isa_n_value, c.isa); |
5009 | if (name != nullptr) |
5010 | outs() << " " << name; |
5011 | outs() << "\n"; |
5012 | |
5013 | outs() << " superclass " << format("0x%" PRIx64"l" "x", c.superclass); |
5014 | name = get_symbol_64(offset + offsetof(struct class64_t, superclass)__builtin_offsetof(struct class64_t, superclass), S, info, |
5015 | n_value, c.superclass); |
5016 | if (name != nullptr) |
5017 | outs() << " " << name; |
5018 | else { |
5019 | name = get_dyld_bind_info_symbolname(S.getAddress() + |
5020 | offset + offsetof(struct class64_t, superclass)__builtin_offsetof(struct class64_t, superclass), info); |
5021 | if (name != nullptr) |
5022 | outs() << " " << name; |
5023 | } |
5024 | outs() << "\n"; |
5025 | |
5026 | outs() << " cache " << format("0x%" PRIx64"l" "x", c.cache); |
5027 | name = get_symbol_64(offset + offsetof(struct class64_t, cache)__builtin_offsetof(struct class64_t, cache), S, info, |
5028 | n_value, c.cache); |
5029 | if (name != nullptr) |
5030 | outs() << " " << name; |
5031 | outs() << "\n"; |
5032 | |
5033 | outs() << " vtable " << format("0x%" PRIx64"l" "x", c.vtable); |
5034 | name = get_symbol_64(offset + offsetof(struct class64_t, vtable)__builtin_offsetof(struct class64_t, vtable), S, info, |
5035 | n_value, c.vtable); |
5036 | if (name != nullptr) |
5037 | outs() << " " << name; |
5038 | outs() << "\n"; |
5039 | |
5040 | name = get_symbol_64(offset + offsetof(struct class64_t, data)__builtin_offsetof(struct class64_t, data), S, info, |
5041 | n_value, c.data); |
5042 | outs() << " data "; |
5043 | if (n_value != 0) { |
5044 | if (info->verbose && name != nullptr) |
5045 | outs() << name; |
5046 | else |
5047 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5048 | if (c.data != 0) |
5049 | outs() << " + " << format("0x%" PRIx64"l" "x", c.data); |
5050 | } else |
5051 | outs() << format("0x%" PRIx64"l" "x", c.data); |
5052 | outs() << " (struct class_ro_t *)"; |
5053 | |
5054 | // This is a Swift class if some of the low bits of the pointer are set. |
5055 | if ((c.data + n_value) & 0x7) |
5056 | outs() << " Swift class"; |
5057 | outs() << "\n"; |
5058 | bool is_meta_class; |
5059 | if (!print_class_ro64_t((c.data + n_value) & ~0x7, info, is_meta_class)) |
5060 | return; |
5061 | |
5062 | if (!is_meta_class && |
5063 | c.isa + isa_n_value != p && |
5064 | c.isa + isa_n_value != 0 && |
5065 | info->depth < 100) { |
5066 | info->depth++; |
5067 | outs() << "Meta Class\n"; |
5068 | print_class64_t(c.isa + isa_n_value, info); |
5069 | } |
5070 | } |
5071 | |
5072 | static void print_class32_t(uint32_t p, struct DisassembleInfo *info) { |
5073 | struct class32_t c; |
5074 | const char *r; |
5075 | uint32_t offset, left; |
5076 | SectionRef S; |
5077 | const char *name; |
5078 | |
5079 | r = get_pointer_32(p, offset, left, S, info); |
5080 | if (r == nullptr) |
5081 | return; |
5082 | memset(&c, '\0', sizeof(struct class32_t)); |
5083 | if (left < sizeof(struct class32_t)) { |
5084 | memcpy(&c, r, left); |
5085 | outs() << " (class_t entends past the end of the section)\n"; |
5086 | } else |
5087 | memcpy(&c, r, sizeof(struct class32_t)); |
5088 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5089 | swapStruct(c); |
5090 | |
5091 | outs() << " isa " << format("0x%" PRIx32"x", c.isa); |
5092 | name = |
5093 | get_symbol_32(offset + offsetof(struct class32_t, isa)__builtin_offsetof(struct class32_t, isa), S, info, c.isa); |
5094 | if (name != nullptr) |
5095 | outs() << " " << name; |
5096 | outs() << "\n"; |
5097 | |
5098 | outs() << " superclass " << format("0x%" PRIx32"x", c.superclass); |
5099 | name = get_symbol_32(offset + offsetof(struct class32_t, superclass)__builtin_offsetof(struct class32_t, superclass), S, info, |
5100 | c.superclass); |
5101 | if (name != nullptr) |
5102 | outs() << " " << name; |
5103 | outs() << "\n"; |
5104 | |
5105 | outs() << " cache " << format("0x%" PRIx32"x", c.cache); |
5106 | name = get_symbol_32(offset + offsetof(struct class32_t, cache)__builtin_offsetof(struct class32_t, cache), S, info, |
5107 | c.cache); |
5108 | if (name != nullptr) |
5109 | outs() << " " << name; |
5110 | outs() << "\n"; |
5111 | |
5112 | outs() << " vtable " << format("0x%" PRIx32"x", c.vtable); |
5113 | name = get_symbol_32(offset + offsetof(struct class32_t, vtable)__builtin_offsetof(struct class32_t, vtable), S, info, |
5114 | c.vtable); |
5115 | if (name != nullptr) |
5116 | outs() << " " << name; |
5117 | outs() << "\n"; |
5118 | |
5119 | name = |
Value stored to 'name' is never read | |
5120 | get_symbol_32(offset + offsetof(struct class32_t, data)__builtin_offsetof(struct class32_t, data), S, info, c.data); |
5121 | outs() << " data " << format("0x%" PRIx32"x", c.data) |
5122 | << " (struct class_ro_t *)"; |
5123 | |
5124 | // This is a Swift class if some of the low bits of the pointer are set. |
5125 | if (c.data & 0x3) |
5126 | outs() << " Swift class"; |
5127 | outs() << "\n"; |
5128 | bool is_meta_class; |
5129 | if (!print_class_ro32_t(c.data & ~0x3, info, is_meta_class)) |
5130 | return; |
5131 | |
5132 | if (!is_meta_class) { |
5133 | outs() << "Meta Class\n"; |
5134 | print_class32_t(c.isa, info); |
5135 | } |
5136 | } |
5137 | |
5138 | static void print_objc_class_t(struct objc_class_t *objc_class, |
5139 | struct DisassembleInfo *info) { |
5140 | uint32_t offset, left, xleft; |
5141 | const char *name, *p, *ivar_list; |
5142 | SectionRef S; |
5143 | int32_t i; |
5144 | struct objc_ivar_list_t objc_ivar_list; |
5145 | struct objc_ivar_t ivar; |
5146 | |
5147 | outs() << "\t\t isa " << format("0x%08" PRIx32"x", objc_class->isa); |
5148 | if (info->verbose && CLS_GETINFO(objc_class, CLS_META)((objc_class)->info & (0x2))) { |
5149 | name = get_pointer_32(objc_class->isa, offset, left, S, info, true); |
5150 | if (name != nullptr) |
5151 | outs() << format(" %.*s", left, name); |
5152 | else |
5153 | outs() << " (not in an __OBJC section)"; |
5154 | } |
5155 | outs() << "\n"; |
5156 | |
5157 | outs() << "\t super_class " |
5158 | << format("0x%08" PRIx32"x", objc_class->super_class); |
5159 | if (info->verbose) { |
5160 | name = get_pointer_32(objc_class->super_class, offset, left, S, info, true); |
5161 | if (name != nullptr) |
5162 | outs() << format(" %.*s", left, name); |
5163 | else |
5164 | outs() << " (not in an __OBJC section)"; |
5165 | } |
5166 | outs() << "\n"; |
5167 | |
5168 | outs() << "\t\t name " << format("0x%08" PRIx32"x", objc_class->name); |
5169 | if (info->verbose) { |
5170 | name = get_pointer_32(objc_class->name, offset, left, S, info, true); |
5171 | if (name != nullptr) |
5172 | outs() << format(" %.*s", left, name); |
5173 | else |
5174 | outs() << " (not in an __OBJC section)"; |
5175 | } |
5176 | outs() << "\n"; |
5177 | |
5178 | outs() << "\t\t version " << format("0x%08" PRIx32"x", objc_class->version) |
5179 | << "\n"; |
5180 | |
5181 | outs() << "\t\t info " << format("0x%08" PRIx32"x", objc_class->info); |
5182 | if (info->verbose) { |
5183 | if (CLS_GETINFO(objc_class, CLS_CLASS)((objc_class)->info & (0x1))) |
5184 | outs() << " CLS_CLASS"; |
5185 | else if (CLS_GETINFO(objc_class, CLS_META)((objc_class)->info & (0x2))) |
5186 | outs() << " CLS_META"; |
5187 | } |
5188 | outs() << "\n"; |
5189 | |
5190 | outs() << "\t instance_size " |
5191 | << format("0x%08" PRIx32"x", objc_class->instance_size) << "\n"; |
5192 | |
5193 | p = get_pointer_32(objc_class->ivars, offset, left, S, info, true); |
5194 | outs() << "\t\t ivars " << format("0x%08" PRIx32"x", objc_class->ivars); |
5195 | if (p != nullptr) { |
5196 | if (left > sizeof(struct objc_ivar_list_t)) { |
5197 | outs() << "\n"; |
5198 | memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t)); |
5199 | } else { |
5200 | outs() << " (entends past the end of the section)\n"; |
5201 | memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t)); |
5202 | memcpy(&objc_ivar_list, p, left); |
5203 | } |
5204 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5205 | swapStruct(objc_ivar_list); |
5206 | outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n"; |
5207 | ivar_list = p + sizeof(struct objc_ivar_list_t); |
5208 | for (i = 0; i < objc_ivar_list.ivar_count; i++) { |
5209 | if ((i + 1) * sizeof(struct objc_ivar_t) > left) { |
5210 | outs() << "\t\t remaining ivar's extend past the of the section\n"; |
5211 | break; |
5212 | } |
5213 | memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t), |
5214 | sizeof(struct objc_ivar_t)); |
5215 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5216 | swapStruct(ivar); |
5217 | |
5218 | outs() << "\t\t\tivar_name " << format("0x%08" PRIx32"x", ivar.ivar_name); |
5219 | if (info->verbose) { |
5220 | name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true); |
5221 | if (name != nullptr) |
5222 | outs() << format(" %.*s", xleft, name); |
5223 | else |
5224 | outs() << " (not in an __OBJC section)"; |
5225 | } |
5226 | outs() << "\n"; |
5227 | |
5228 | outs() << "\t\t\tivar_type " << format("0x%08" PRIx32"x", ivar.ivar_type); |
5229 | if (info->verbose) { |
5230 | name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true); |
5231 | if (name != nullptr) |
5232 | outs() << format(" %.*s", xleft, name); |
5233 | else |
5234 | outs() << " (not in an __OBJC section)"; |
5235 | } |
5236 | outs() << "\n"; |
5237 | |
5238 | outs() << "\t\t ivar_offset " |
5239 | << format("0x%08" PRIx32"x", ivar.ivar_offset) << "\n"; |
5240 | } |
5241 | } else { |
5242 | outs() << " (not in an __OBJC section)\n"; |
5243 | } |
5244 | |
5245 | outs() << "\t\t methods " << format("0x%08" PRIx32"x", objc_class->methodLists); |
5246 | if (print_method_list(objc_class->methodLists, info)) |
5247 | outs() << " (not in an __OBJC section)\n"; |
5248 | |
5249 | outs() << "\t\t cache " << format("0x%08" PRIx32"x", objc_class->cache) |
5250 | << "\n"; |
5251 | |
5252 | outs() << "\t\tprotocols " << format("0x%08" PRIx32"x", objc_class->protocols); |
5253 | if (print_protocol_list(objc_class->protocols, 16, info)) |
5254 | outs() << " (not in an __OBJC section)\n"; |
5255 | } |
5256 | |
5257 | static void print_objc_objc_category_t(struct objc_category_t *objc_category, |
5258 | struct DisassembleInfo *info) { |
5259 | uint32_t offset, left; |
5260 | const char *name; |
5261 | SectionRef S; |
5262 | |
5263 | outs() << "\t category name " |
5264 | << format("0x%08" PRIx32"x", objc_category->category_name); |
5265 | if (info->verbose) { |
5266 | name = get_pointer_32(objc_category->category_name, offset, left, S, info, |
5267 | true); |
5268 | if (name != nullptr) |
5269 | outs() << format(" %.*s", left, name); |
5270 | else |
5271 | outs() << " (not in an __OBJC section)"; |
5272 | } |
5273 | outs() << "\n"; |
5274 | |
5275 | outs() << "\t\t class name " |
5276 | << format("0x%08" PRIx32"x", objc_category->class_name); |
5277 | if (info->verbose) { |
5278 | name = |
5279 | get_pointer_32(objc_category->class_name, offset, left, S, info, true); |
5280 | if (name != nullptr) |
5281 | outs() << format(" %.*s", left, name); |
5282 | else |
5283 | outs() << " (not in an __OBJC section)"; |
5284 | } |
5285 | outs() << "\n"; |
5286 | |
5287 | outs() << "\t instance methods " |
5288 | << format("0x%08" PRIx32"x", objc_category->instance_methods); |
5289 | if (print_method_list(objc_category->instance_methods, info)) |
5290 | outs() << " (not in an __OBJC section)\n"; |
5291 | |
5292 | outs() << "\t class methods " |
5293 | << format("0x%08" PRIx32"x", objc_category->class_methods); |
5294 | if (print_method_list(objc_category->class_methods, info)) |
5295 | outs() << " (not in an __OBJC section)\n"; |
5296 | } |
5297 | |
5298 | static void print_category64_t(uint64_t p, struct DisassembleInfo *info) { |
5299 | struct category64_t c; |
5300 | const char *r; |
5301 | uint32_t offset, xoffset, left; |
5302 | SectionRef S, xS; |
5303 | const char *name, *sym_name; |
5304 | uint64_t n_value; |
5305 | |
5306 | r = get_pointer_64(p, offset, left, S, info); |
5307 | if (r == nullptr) |
5308 | return; |
5309 | memset(&c, '\0', sizeof(struct category64_t)); |
5310 | if (left < sizeof(struct category64_t)) { |
5311 | memcpy(&c, r, left); |
5312 | outs() << " (category_t entends past the end of the section)\n"; |
5313 | } else |
5314 | memcpy(&c, r, sizeof(struct category64_t)); |
5315 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5316 | swapStruct(c); |
5317 | |
5318 | outs() << " name "; |
5319 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, name)__builtin_offsetof(struct category64_t, name), S, |
5320 | info, n_value, c.name); |
5321 | if (n_value != 0) { |
5322 | if (info->verbose && sym_name != nullptr) |
5323 | outs() << sym_name; |
5324 | else |
5325 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5326 | if (c.name != 0) |
5327 | outs() << " + " << format("0x%" PRIx64"l" "x", c.name); |
5328 | } else |
5329 | outs() << format("0x%" PRIx64"l" "x", c.name); |
5330 | name = get_pointer_64(c.name + n_value, xoffset, left, xS, info); |
5331 | if (name != nullptr) |
5332 | outs() << format(" %.*s", left, name); |
5333 | outs() << "\n"; |
5334 | |
5335 | outs() << " cls "; |
5336 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, cls)__builtin_offsetof(struct category64_t, cls), S, info, |
5337 | n_value, c.cls); |
5338 | if (n_value != 0) { |
5339 | if (info->verbose && sym_name != nullptr) |
5340 | outs() << sym_name; |
5341 | else |
5342 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5343 | if (c.cls != 0) |
5344 | outs() << " + " << format("0x%" PRIx64"l" "x", c.cls); |
5345 | } else |
5346 | outs() << format("0x%" PRIx64"l" "x", c.cls); |
5347 | outs() << "\n"; |
5348 | if (c.cls + n_value != 0) |
5349 | print_class64_t(c.cls + n_value, info); |
5350 | |
5351 | outs() << " instanceMethods "; |
5352 | sym_name = |
5353 | get_symbol_64(offset + offsetof(struct category64_t, instanceMethods)__builtin_offsetof(struct category64_t, instanceMethods), S, |
5354 | info, n_value, c.instanceMethods); |
5355 | if (n_value != 0) { |
5356 | if (info->verbose && sym_name != nullptr) |
5357 | outs() << sym_name; |
5358 | else |
5359 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5360 | if (c.instanceMethods != 0) |
5361 | outs() << " + " << format("0x%" PRIx64"l" "x", c.instanceMethods); |
5362 | } else |
5363 | outs() << format("0x%" PRIx64"l" "x", c.instanceMethods); |
5364 | outs() << "\n"; |
5365 | if (c.instanceMethods + n_value != 0) |
5366 | print_method_list64_t(c.instanceMethods + n_value, info, ""); |
5367 | |
5368 | outs() << " classMethods "; |
5369 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, classMethods)__builtin_offsetof(struct category64_t, classMethods), |
5370 | S, info, n_value, c.classMethods); |
5371 | if (n_value != 0) { |
5372 | if (info->verbose && sym_name != nullptr) |
5373 | outs() << sym_name; |
5374 | else |
5375 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5376 | if (c.classMethods != 0) |
5377 | outs() << " + " << format("0x%" PRIx64"l" "x", c.classMethods); |
5378 | } else |
5379 | outs() << format("0x%" PRIx64"l" "x", c.classMethods); |
5380 | outs() << "\n"; |
5381 | if (c.classMethods + n_value != 0) |
5382 | print_method_list64_t(c.classMethods + n_value, info, ""); |
5383 | |
5384 | outs() << " protocols "; |
5385 | sym_name = get_symbol_64(offset + offsetof(struct category64_t, protocols)__builtin_offsetof(struct category64_t, protocols), S, |
5386 | info, n_value, c.protocols); |
5387 | if (n_value != 0) { |
5388 | if (info->verbose && sym_name != nullptr) |
5389 | outs() << sym_name; |
5390 | else |
5391 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5392 | if (c.protocols != 0) |
5393 | outs() << " + " << format("0x%" PRIx64"l" "x", c.protocols); |
5394 | } else |
5395 | outs() << format("0x%" PRIx64"l" "x", c.protocols); |
5396 | outs() << "\n"; |
5397 | if (c.protocols + n_value != 0) |
5398 | print_protocol_list64_t(c.protocols + n_value, info); |
5399 | |
5400 | outs() << "instanceProperties "; |
5401 | sym_name = |
5402 | get_symbol_64(offset + offsetof(struct category64_t, instanceProperties)__builtin_offsetof(struct category64_t, instanceProperties), |
5403 | S, info, n_value, c.instanceProperties); |
5404 | if (n_value != 0) { |
5405 | if (info->verbose && sym_name != nullptr) |
5406 | outs() << sym_name; |
5407 | else |
5408 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5409 | if (c.instanceProperties != 0) |
5410 | outs() << " + " << format("0x%" PRIx64"l" "x", c.instanceProperties); |
5411 | } else |
5412 | outs() << format("0x%" PRIx64"l" "x", c.instanceProperties); |
5413 | outs() << "\n"; |
5414 | if (c.instanceProperties + n_value != 0) |
5415 | print_objc_property_list64(c.instanceProperties + n_value, info); |
5416 | } |
5417 | |
5418 | static void print_category32_t(uint32_t p, struct DisassembleInfo *info) { |
5419 | struct category32_t c; |
5420 | const char *r; |
5421 | uint32_t offset, left; |
5422 | SectionRef S, xS; |
5423 | const char *name; |
5424 | |
5425 | r = get_pointer_32(p, offset, left, S, info); |
5426 | if (r == nullptr) |
5427 | return; |
5428 | memset(&c, '\0', sizeof(struct category32_t)); |
5429 | if (left < sizeof(struct category32_t)) { |
5430 | memcpy(&c, r, left); |
5431 | outs() << " (category_t entends past the end of the section)\n"; |
5432 | } else |
5433 | memcpy(&c, r, sizeof(struct category32_t)); |
5434 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5435 | swapStruct(c); |
5436 | |
5437 | outs() << " name " << format("0x%" PRIx32"x", c.name); |
5438 | name = get_symbol_32(offset + offsetof(struct category32_t, name)__builtin_offsetof(struct category32_t, name), S, info, |
5439 | c.name); |
5440 | if (name) |
5441 | outs() << " " << name; |
5442 | outs() << "\n"; |
5443 | |
5444 | outs() << " cls " << format("0x%" PRIx32"x", c.cls) << "\n"; |
5445 | if (c.cls != 0) |
5446 | print_class32_t(c.cls, info); |
5447 | outs() << " instanceMethods " << format("0x%" PRIx32"x", c.instanceMethods) |
5448 | << "\n"; |
5449 | if (c.instanceMethods != 0) |
5450 | print_method_list32_t(c.instanceMethods, info, ""); |
5451 | outs() << " classMethods " << format("0x%" PRIx32"x", c.classMethods) |
5452 | << "\n"; |
5453 | if (c.classMethods != 0) |
5454 | print_method_list32_t(c.classMethods, info, ""); |
5455 | outs() << " protocols " << format("0x%" PRIx32"x", c.protocols) << "\n"; |
5456 | if (c.protocols != 0) |
5457 | print_protocol_list32_t(c.protocols, info); |
5458 | outs() << "instanceProperties " << format("0x%" PRIx32"x", c.instanceProperties) |
5459 | << "\n"; |
5460 | if (c.instanceProperties != 0) |
5461 | print_objc_property_list32(c.instanceProperties, info); |
5462 | } |
5463 | |
5464 | static void print_message_refs64(SectionRef S, struct DisassembleInfo *info) { |
5465 | uint32_t i, left, offset, xoffset; |
5466 | uint64_t p, n_value; |
5467 | struct message_ref64 mr; |
5468 | const char *name, *sym_name; |
5469 | const char *r; |
5470 | SectionRef xS; |
5471 | |
5472 | if (S == SectionRef()) |
5473 | return; |
5474 | |
5475 | StringRef SectName; |
5476 | S.getName(SectName); |
5477 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5478 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5479 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5480 | offset = 0; |
5481 | for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { |
5482 | p = S.getAddress() + i; |
5483 | r = get_pointer_64(p, offset, left, S, info); |
5484 | if (r == nullptr) |
5485 | return; |
5486 | memset(&mr, '\0', sizeof(struct message_ref64)); |
5487 | if (left < sizeof(struct message_ref64)) { |
5488 | memcpy(&mr, r, left); |
5489 | outs() << " (message_ref entends past the end of the section)\n"; |
5490 | } else |
5491 | memcpy(&mr, r, sizeof(struct message_ref64)); |
5492 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5493 | swapStruct(mr); |
5494 | |
5495 | outs() << " imp "; |
5496 | name = get_symbol_64(offset + offsetof(struct message_ref64, imp)__builtin_offsetof(struct message_ref64, imp), S, info, |
5497 | n_value, mr.imp); |
5498 | if (n_value != 0) { |
5499 | outs() << format("0x%" PRIx64"l" "x", n_value) << " "; |
5500 | if (mr.imp != 0) |
5501 | outs() << "+ " << format("0x%" PRIx64"l" "x", mr.imp) << " "; |
5502 | } else |
5503 | outs() << format("0x%" PRIx64"l" "x", mr.imp) << " "; |
5504 | if (name != nullptr) |
5505 | outs() << " " << name; |
5506 | outs() << "\n"; |
5507 | |
5508 | outs() << " sel "; |
5509 | sym_name = get_symbol_64(offset + offsetof(struct message_ref64, sel)__builtin_offsetof(struct message_ref64, sel), S, |
5510 | info, n_value, mr.sel); |
5511 | if (n_value != 0) { |
5512 | if (info->verbose && sym_name != nullptr) |
5513 | outs() << sym_name; |
5514 | else |
5515 | outs() << format("0x%" PRIx64"l" "x", n_value); |
5516 | if (mr.sel != 0) |
5517 | outs() << " + " << format("0x%" PRIx64"l" "x", mr.sel); |
5518 | } else |
5519 | outs() << format("0x%" PRIx64"l" "x", mr.sel); |
5520 | name = get_pointer_64(mr.sel + n_value, xoffset, left, xS, info); |
5521 | if (name != nullptr) |
5522 | outs() << format(" %.*s", left, name); |
5523 | outs() << "\n"; |
5524 | |
5525 | offset += sizeof(struct message_ref64); |
5526 | } |
5527 | } |
5528 | |
5529 | static void print_message_refs32(SectionRef S, struct DisassembleInfo *info) { |
5530 | uint32_t i, left, offset, xoffset, p; |
5531 | struct message_ref32 mr; |
5532 | const char *name, *r; |
5533 | SectionRef xS; |
5534 | |
5535 | if (S == SectionRef()) |
5536 | return; |
5537 | |
5538 | StringRef SectName; |
5539 | S.getName(SectName); |
5540 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5541 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5542 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5543 | offset = 0; |
5544 | for (i = 0; i < S.getSize(); i += sizeof(struct message_ref64)) { |
5545 | p = S.getAddress() + i; |
5546 | r = get_pointer_32(p, offset, left, S, info); |
5547 | if (r == nullptr) |
5548 | return; |
5549 | memset(&mr, '\0', sizeof(struct message_ref32)); |
5550 | if (left < sizeof(struct message_ref32)) { |
5551 | memcpy(&mr, r, left); |
5552 | outs() << " (message_ref entends past the end of the section)\n"; |
5553 | } else |
5554 | memcpy(&mr, r, sizeof(struct message_ref32)); |
5555 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5556 | swapStruct(mr); |
5557 | |
5558 | outs() << " imp " << format("0x%" PRIx32"x", mr.imp); |
5559 | name = get_symbol_32(offset + offsetof(struct message_ref32, imp)__builtin_offsetof(struct message_ref32, imp), S, info, |
5560 | mr.imp); |
5561 | if (name != nullptr) |
5562 | outs() << " " << name; |
5563 | outs() << "\n"; |
5564 | |
5565 | outs() << " sel " << format("0x%" PRIx32"x", mr.sel); |
5566 | name = get_pointer_32(mr.sel, xoffset, left, xS, info); |
5567 | if (name != nullptr) |
5568 | outs() << " " << name; |
5569 | outs() << "\n"; |
5570 | |
5571 | offset += sizeof(struct message_ref32); |
5572 | } |
5573 | } |
5574 | |
5575 | static void print_image_info64(SectionRef S, struct DisassembleInfo *info) { |
5576 | uint32_t left, offset, swift_version; |
5577 | uint64_t p; |
5578 | struct objc_image_info64 o; |
5579 | const char *r; |
5580 | |
5581 | if (S == SectionRef()) |
5582 | return; |
5583 | |
5584 | StringRef SectName; |
5585 | S.getName(SectName); |
5586 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5587 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5588 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5589 | p = S.getAddress(); |
5590 | r = get_pointer_64(p, offset, left, S, info); |
5591 | if (r == nullptr) |
5592 | return; |
5593 | memset(&o, '\0', sizeof(struct objc_image_info64)); |
5594 | if (left < sizeof(struct objc_image_info64)) { |
5595 | memcpy(&o, r, left); |
5596 | outs() << " (objc_image_info entends past the end of the section)\n"; |
5597 | } else |
5598 | memcpy(&o, r, sizeof(struct objc_image_info64)); |
5599 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5600 | swapStruct(o); |
5601 | outs() << " version " << o.version << "\n"; |
5602 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
5603 | if (o.flags & OBJC_IMAGE_IS_REPLACEMENT(1 << 0)) |
5604 | outs() << " OBJC_IMAGE_IS_REPLACEMENT"; |
5605 | if (o.flags & OBJC_IMAGE_SUPPORTS_GC(1 << 1)) |
5606 | outs() << " OBJC_IMAGE_SUPPORTS_GC"; |
5607 | if (o.flags & OBJC_IMAGE_IS_SIMULATED(1 << 5)) |
5608 | outs() << " OBJC_IMAGE_IS_SIMULATED"; |
5609 | if (o.flags & OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES(1 << 6)) |
5610 | outs() << " OBJC_IMAGE_HAS_CATEGORY_CLASS_PROPERTIES"; |
5611 | swift_version = (o.flags >> 8) & 0xff; |
5612 | if (swift_version != 0) { |
5613 | if (swift_version == 1) |
5614 | outs() << " Swift 1.0"; |
5615 | else if (swift_version == 2) |
5616 | outs() << " Swift 1.1"; |
5617 | else if(swift_version == 3) |
5618 | outs() << " Swift 2.0"; |
5619 | else if(swift_version == 4) |
5620 | outs() << " Swift 3.0"; |
5621 | else if(swift_version == 5) |
5622 | outs() << " Swift 4.0"; |
5623 | else if(swift_version == 6) |
5624 | outs() << " Swift 4.1"; |
5625 | else |
5626 | outs() << " unknown future Swift version (" << swift_version << ")"; |
5627 | } |
5628 | outs() << "\n"; |
5629 | } |
5630 | |
5631 | static void print_image_info32(SectionRef S, struct DisassembleInfo *info) { |
5632 | uint32_t left, offset, swift_version, p; |
5633 | struct objc_image_info32 o; |
5634 | const char *r; |
5635 | |
5636 | if (S == SectionRef()) |
5637 | return; |
5638 | |
5639 | StringRef SectName; |
5640 | S.getName(SectName); |
5641 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5642 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5643 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5644 | p = S.getAddress(); |
5645 | r = get_pointer_32(p, offset, left, S, info); |
5646 | if (r == nullptr) |
5647 | return; |
5648 | memset(&o, '\0', sizeof(struct objc_image_info32)); |
5649 | if (left < sizeof(struct objc_image_info32)) { |
5650 | memcpy(&o, r, left); |
5651 | outs() << " (objc_image_info entends past the end of the section)\n"; |
5652 | } else |
5653 | memcpy(&o, r, sizeof(struct objc_image_info32)); |
5654 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5655 | swapStruct(o); |
5656 | outs() << " version " << o.version << "\n"; |
5657 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
5658 | if (o.flags & OBJC_IMAGE_IS_REPLACEMENT(1 << 0)) |
5659 | outs() << " OBJC_IMAGE_IS_REPLACEMENT"; |
5660 | if (o.flags & OBJC_IMAGE_SUPPORTS_GC(1 << 1)) |
5661 | outs() << " OBJC_IMAGE_SUPPORTS_GC"; |
5662 | swift_version = (o.flags >> 8) & 0xff; |
5663 | if (swift_version != 0) { |
5664 | if (swift_version == 1) |
5665 | outs() << " Swift 1.0"; |
5666 | else if (swift_version == 2) |
5667 | outs() << " Swift 1.1"; |
5668 | else if(swift_version == 3) |
5669 | outs() << " Swift 2.0"; |
5670 | else if(swift_version == 4) |
5671 | outs() << " Swift 3.0"; |
5672 | else if(swift_version == 5) |
5673 | outs() << " Swift 4.0"; |
5674 | else if(swift_version == 6) |
5675 | outs() << " Swift 4.1"; |
5676 | else |
5677 | outs() << " unknown future Swift version (" << swift_version << ")"; |
5678 | } |
5679 | outs() << "\n"; |
5680 | } |
5681 | |
5682 | static void print_image_info(SectionRef S, struct DisassembleInfo *info) { |
5683 | uint32_t left, offset, p; |
5684 | struct imageInfo_t o; |
5685 | const char *r; |
5686 | |
5687 | StringRef SectName; |
5688 | S.getName(SectName); |
5689 | DataRefImpl Ref = S.getRawDataRefImpl(); |
5690 | StringRef SegName = info->O->getSectionFinalSegmentName(Ref); |
5691 | outs() << "Contents of (" << SegName << "," << SectName << ") section\n"; |
5692 | p = S.getAddress(); |
5693 | r = get_pointer_32(p, offset, left, S, info); |
5694 | if (r == nullptr) |
5695 | return; |
5696 | memset(&o, '\0', sizeof(struct imageInfo_t)); |
5697 | if (left < sizeof(struct imageInfo_t)) { |
5698 | memcpy(&o, r, left); |
5699 | outs() << " (imageInfo entends past the end of the section)\n"; |
5700 | } else |
5701 | memcpy(&o, r, sizeof(struct imageInfo_t)); |
5702 | if (info->O->isLittleEndian() != sys::IsLittleEndianHost) |
5703 | swapStruct(o); |
5704 | outs() << " version " << o.version << "\n"; |
5705 | outs() << " flags " << format("0x%" PRIx32"x", o.flags); |
5706 | if (o.flags & 0x1) |
5707 | outs() << " F&C"; |
5708 | if (o.flags & 0x2) |
5709 | outs() << " GC"; |
5710 | if (o.flags & 0x4) |
5711 | outs() << " GC-only"; |
5712 | else |
5713 | outs() << " RR"; |
5714 | outs() << "\n"; |
5715 | } |
5716 | |
5717 | static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) { |
5718 | SymbolAddressMap AddrMap; |
5719 | if (verbose) |
5720 | CreateSymbolAddressMap(O, &AddrMap); |
5721 | |
5722 | std::vector<SectionRef> Sections; |
5723 | for (const SectionRef &Section : O->sections()) { |
5724 | StringRef SectName; |
5725 | Section.getName(SectName); |
5726 | Sections.push_back(Section); |
5727 | } |
5728 | |
5729 | struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); |
5730 | |
5731 | SectionRef CL = get_section(O, "__OBJC2", "__class_list"); |
5732 | if (CL == SectionRef()) |
5733 | CL = get_section(O, "__DATA", "__objc_classlist"); |
5734 | if (CL == SectionRef()) |
5735 | CL = get_section(O, "__DATA_CONST", "__objc_classlist"); |
5736 | if (CL == SectionRef()) |
5737 | CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); |
5738 | info.S = CL; |
5739 | walk_pointer_list_64("class", CL, O, &info, print_class64_t); |
5740 | |
5741 | SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); |
5742 | if (CR == SectionRef()) |
5743 | CR = get_section(O, "__DATA", "__objc_classrefs"); |
5744 | if (CR == SectionRef()) |
5745 | CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); |
5746 | if (CR == SectionRef()) |
5747 | CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); |
5748 | info.S = CR; |
5749 | walk_pointer_list_64("class refs", CR, O, &info, nullptr); |
5750 | |
5751 | SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); |
5752 | if (SR == SectionRef()) |
5753 | SR = get_section(O, "__DATA", "__objc_superrefs"); |
5754 | if (SR == SectionRef()) |
5755 | SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); |
5756 | if (SR == SectionRef()) |
5757 | SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); |
5758 | info.S = SR; |
5759 | walk_pointer_list_64("super refs", SR, O, &info, nullptr); |
5760 | |
5761 | SectionRef CA = get_section(O, "__OBJC2", "__category_list"); |
5762 | if (CA == SectionRef()) |
5763 | CA = get_section(O, "__DATA", "__objc_catlist"); |
5764 | if (CA == SectionRef()) |
5765 | CA = get_section(O, "__DATA_CONST", "__objc_catlist"); |
5766 | if (CA == SectionRef()) |
5767 | CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); |
5768 | info.S = CA; |
5769 | walk_pointer_list_64("category", CA, O, &info, print_category64_t); |
5770 | |
5771 | SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); |
5772 | if (PL == SectionRef()) |
5773 | PL = get_section(O, "__DATA", "__objc_protolist"); |
5774 | if (PL == SectionRef()) |
5775 | PL = get_section(O, "__DATA_CONST", "__objc_protolist"); |
5776 | if (PL == SectionRef()) |
5777 | PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); |
5778 | info.S = PL; |
5779 | walk_pointer_list_64("protocol", PL, O, &info, nullptr); |
5780 | |
5781 | SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); |
5782 | if (MR == SectionRef()) |
5783 | MR = get_section(O, "__DATA", "__objc_msgrefs"); |
5784 | if (MR == SectionRef()) |
5785 | MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); |
5786 | if (MR == SectionRef()) |
5787 | MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); |
5788 | info.S = MR; |
5789 | print_message_refs64(MR, &info); |
5790 | |
5791 | SectionRef II = get_section(O, "__OBJC2", "__image_info"); |
5792 | if (II == SectionRef()) |
5793 | II = get_section(O, "__DATA", "__objc_imageinfo"); |
5794 | if (II == SectionRef()) |
5795 | II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); |
5796 | if (II == SectionRef()) |
5797 | II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); |
5798 | info.S = II; |
5799 | print_image_info64(II, &info); |
5800 | } |
5801 | |
5802 | static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) { |
5803 | SymbolAddressMap AddrMap; |
5804 | if (verbose) |
5805 | CreateSymbolAddressMap(O, &AddrMap); |
5806 | |
5807 | std::vector<SectionRef> Sections; |
5808 | for (const SectionRef &Section : O->sections()) { |
5809 | StringRef SectName; |
5810 | Section.getName(SectName); |
5811 | Sections.push_back(Section); |
5812 | } |
5813 | |
5814 | struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); |
5815 | |
5816 | SectionRef CL = get_section(O, "__OBJC2", "__class_list"); |
5817 | if (CL == SectionRef()) |
5818 | CL = get_section(O, "__DATA", "__objc_classlist"); |
5819 | if (CL == SectionRef()) |
5820 | CL = get_section(O, "__DATA_CONST", "__objc_classlist"); |
5821 | if (CL == SectionRef()) |
5822 | CL = get_section(O, "__DATA_DIRTY", "__objc_classlist"); |
5823 | info.S = CL; |
5824 | walk_pointer_list_32("class", CL, O, &info, print_class32_t); |
5825 | |
5826 | SectionRef CR = get_section(O, "__OBJC2", "__class_refs"); |
5827 | if (CR == SectionRef()) |
5828 | CR = get_section(O, "__DATA", "__objc_classrefs"); |
5829 | if (CR == SectionRef()) |
5830 | CR = get_section(O, "__DATA_CONST", "__objc_classrefs"); |
5831 | if (CR == SectionRef()) |
5832 | CR = get_section(O, "__DATA_DIRTY", "__objc_classrefs"); |
5833 | info.S = CR; |
5834 | walk_pointer_list_32("class refs", CR, O, &info, nullptr); |
5835 | |
5836 | SectionRef SR = get_section(O, "__OBJC2", "__super_refs"); |
5837 | if (SR == SectionRef()) |
5838 | SR = get_section(O, "__DATA", "__objc_superrefs"); |
5839 | if (SR == SectionRef()) |
5840 | SR = get_section(O, "__DATA_CONST", "__objc_superrefs"); |
5841 | if (SR == SectionRef()) |
5842 | SR = get_section(O, "__DATA_DIRTY", "__objc_superrefs"); |
5843 | info.S = SR; |
5844 | walk_pointer_list_32("super refs", SR, O, &info, nullptr); |
5845 | |
5846 | SectionRef CA = get_section(O, "__OBJC2", "__category_list"); |
5847 | if (CA == SectionRef()) |
5848 | CA = get_section(O, "__DATA", "__objc_catlist"); |
5849 | if (CA == SectionRef()) |
5850 | CA = get_section(O, "__DATA_CONST", "__objc_catlist"); |
5851 | if (CA == SectionRef()) |
5852 | CA = get_section(O, "__DATA_DIRTY", "__objc_catlist"); |
5853 | info.S = CA; |
5854 | walk_pointer_list_32("category", CA, O, &info, print_category32_t); |
5855 | |
5856 | SectionRef PL = get_section(O, "__OBJC2", "__protocol_list"); |
5857 | if (PL == SectionRef()) |
5858 | PL = get_section(O, "__DATA", "__objc_protolist"); |
5859 | if (PL == SectionRef()) |
5860 | PL = get_section(O, "__DATA_CONST", "__objc_protolist"); |
5861 | if (PL == SectionRef()) |
5862 | PL = get_section(O, "__DATA_DIRTY", "__objc_protolist"); |
5863 | info.S = PL; |
5864 | walk_pointer_list_32("protocol", PL, O, &info, nullptr); |
5865 | |
5866 | SectionRef MR = get_section(O, "__OBJC2", "__message_refs"); |
5867 | if (MR == SectionRef()) |
5868 | MR = get_section(O, "__DATA", "__objc_msgrefs"); |
5869 | if (MR == SectionRef()) |
5870 | MR = get_section(O, "__DATA_CONST", "__objc_msgrefs"); |
5871 | if (MR == SectionRef()) |
5872 | MR = get_section(O, "__DATA_DIRTY", "__objc_msgrefs"); |
5873 | info.S = MR; |
5874 | print_message_refs32(MR, &info); |
5875 | |
5876 | SectionRef II = get_section(O, "__OBJC2", "__image_info"); |
5877 | if (II == SectionRef()) |
5878 | II = get_section(O, "__DATA", "__objc_imageinfo"); |
5879 | if (II == SectionRef()) |
5880 | II = get_section(O, "__DATA_CONST", "__objc_imageinfo"); |
5881 | if (II == SectionRef()) |
5882 | II = get_section(O, "__DATA_DIRTY", "__objc_imageinfo"); |
5883 | info.S = II; |
5884 | print_image_info32(II, &info); |
5885 | } |
5886 | |
5887 | static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) { |
5888 | uint32_t i, j, p, offset, xoffset, left, defs_left, def; |
5889 | const char *r, *name, *defs; |
5890 | struct objc_module_t module; |
5891 | SectionRef S, xS; |
5892 | struct objc_symtab_t symtab; |
5893 | struct objc_class_t objc_class; |
5894 | struct objc_category_t objc_category; |
5895 | |
5896 | outs() << "Objective-C segment\n"; |
5897 | S = get_section(O, "__OBJC", "__module_info"); |
5898 | if (S == SectionRef()) |
5899 | return false; |
5900 | |
5901 | SymbolAddressMap AddrMap; |
5902 | if (verbose) |
5903 | CreateSymbolAddressMap(O, &AddrMap); |
5904 | |
5905 | std::vector<SectionRef> Sections; |
5906 | for (const SectionRef &Section : O->sections()) { |
5907 | StringRef SectName; |
5908 | Section.getName(SectName); |
5909 | Sections.push_back(Section); |
5910 | } |
5911 | |
5912 | struct DisassembleInfo info(O, &AddrMap, &Sections, verbose); |
5913 | |
5914 | for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) { |
5915 | p = S.getAddress() + i; |
5916 | r = get_pointer_32(p, offset, left, S, &info, true); |
5917 | if (r == nullptr) |
5918 | return true; |
5919 | memset(&module, '\0', sizeof(struct objc_module_t)); |
5920 | if (left < sizeof(struct objc_module_t)) { |
5921 | memcpy(&module, r, left); |
5922 | outs() << " (module extends past end of __module_info section)\n"; |
5923 | } else |
5924 | memcpy(&module, r, sizeof(struct objc_module_t)); |
5925 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5926 | swapStruct(module); |
5927 | |
5928 | outs() << "Module " << format("0x%" PRIx32"x", p) << "\n"; |
5929 | outs() << " version " << module.version << "\n"; |
5930 | outs() << " size " << module.size << "\n"; |
5931 | outs() << " name "; |
5932 | name = get_pointer_32(module.name, xoffset, left, xS, &info, true); |
5933 | if (name != nullptr) |
5934 | outs() << format("%.*s", left, name); |
5935 | else |
5936 | outs() << format("0x%08" PRIx32"x", module.name) |
5937 | << "(not in an __OBJC section)"; |
5938 | outs() << "\n"; |
5939 | |
5940 | r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true); |
5941 | if (module.symtab == 0 || r == nullptr) { |
5942 | outs() << " symtab " << format("0x%08" PRIx32"x", module.symtab) |
5943 | << " (not in an __OBJC section)\n"; |
5944 | continue; |
5945 | } |
5946 | outs() << " symtab " << format("0x%08" PRIx32"x", module.symtab) << "\n"; |
5947 | memset(&symtab, '\0', sizeof(struct objc_symtab_t)); |
5948 | defs_left = 0; |
5949 | defs = nullptr; |
5950 | if (left < sizeof(struct objc_symtab_t)) { |
5951 | memcpy(&symtab, r, left); |
5952 | outs() << "\tsymtab extends past end of an __OBJC section)\n"; |
5953 | } else { |
5954 | memcpy(&symtab, r, sizeof(struct objc_symtab_t)); |
5955 | if (left > sizeof(struct objc_symtab_t)) { |
5956 | defs_left = left - sizeof(struct objc_symtab_t); |
5957 | defs = r + sizeof(struct objc_symtab_t); |
5958 | } |
5959 | } |
5960 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5961 | swapStruct(symtab); |
5962 | |
5963 | outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n"; |
5964 | r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true); |
5965 | outs() << "\trefs " << format("0x%08" PRIx32"x", symtab.refs); |
5966 | if (r == nullptr) |
5967 | outs() << " (not in an __OBJC section)"; |
5968 | outs() << "\n"; |
5969 | outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n"; |
5970 | outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n"; |
5971 | if (symtab.cls_def_cnt > 0) |
5972 | outs() << "\tClass Definitions\n"; |
5973 | for (j = 0; j < symtab.cls_def_cnt; j++) { |
5974 | if ((j + 1) * sizeof(uint32_t) > defs_left) { |
5975 | outs() << "\t(remaining class defs entries entends past the end of the " |
5976 | << "section)\n"; |
5977 | break; |
5978 | } |
5979 | memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t)); |
5980 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5981 | sys::swapByteOrder(def); |
5982 | |
5983 | r = get_pointer_32(def, xoffset, left, xS, &info, true); |
5984 | outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32"x", def); |
5985 | if (r != nullptr) { |
5986 | if (left > sizeof(struct objc_class_t)) { |
5987 | outs() << "\n"; |
5988 | memcpy(&objc_class, r, sizeof(struct objc_class_t)); |
5989 | } else { |
5990 | outs() << " (entends past the end of the section)\n"; |
5991 | memset(&objc_class, '\0', sizeof(struct objc_class_t)); |
5992 | memcpy(&objc_class, r, left); |
5993 | } |
5994 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
5995 | swapStruct(objc_class); |
5996 | print_objc_class_t(&objc_class, &info); |
5997 | } else { |
5998 | outs() << "(not in an __OBJC section)\n"; |
5999 | } |
6000 | |
6001 | if (CLS_GETINFO(&objc_class, CLS_CLASS)((&objc_class)->info & (0x1))) { |
6002 | outs() << "\tMeta Class"; |
6003 | r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true); |
6004 | if (r != nullptr) { |
6005 | if (left > sizeof(struct objc_class_t)) { |
6006 | outs() << "\n"; |
6007 | memcpy(&objc_class, r, sizeof(struct objc_class_t)); |
6008 | } else { |
6009 | outs() << " (entends past the end of the section)\n"; |
6010 | memset(&objc_class, '\0', sizeof(struct objc_class_t)); |
6011 | memcpy(&objc_class, r, left); |
6012 | } |
6013 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
6014 | swapStruct(objc_class); |
6015 | print_objc_class_t(&objc_class, &info); |
6016 | } else { |
6017 | outs() << "(not in an __OBJC section)\n"; |
6018 | } |
6019 | } |
6020 | } |
6021 | if (symtab.cat_def_cnt > 0) |
6022 | outs() << "\tCategory Definitions\n"; |
6023 | for (j = 0; j < symtab.cat_def_cnt; j++) { |
6024 | if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) { |
6025 | outs() << "\t(remaining category defs entries entends past the end of " |
6026 | << "the section)\n"; |
6027 | break; |
6028 | } |
6029 | memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t), |
6030 | sizeof(uint32_t)); |
6031 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
6032 | sys::swapByteOrder(def); |
6033 | |
6034 | r = get_pointer_32(def, xoffset, left, xS, &info, true); |
6035 | outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] " |
6036 | << format("0x%08" PRIx32"x", def); |
6037 | if (r != nullptr) { |
6038 | if (left > sizeof(struct objc_category_t)) { |
6039 | outs() << "\n"; |
6040 | memcpy(&objc_category, r, sizeof(struct objc_category_t)); |
6041 | } else { |
6042 | outs() << " (entends past the end of the section)\n"; |
6043 | memset(&objc_category, '\0', sizeof(struct objc_category_t)); |
6044 | memcpy(&objc_category, r, left); |
6045 | } |
6046 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
6047 | swapStruct(objc_category); |
6048 | print_objc_objc_category_t(&objc_category, &info); |
6049 | } else { |
6050 | outs() << "(not in an __OBJC section)\n"; |
6051 | } |
6052 | } |
6053 | } |
6054 | const SectionRef II = get_section(O, "__OBJC", "__image_info"); |
6055 | if (II != SectionRef()) |
6056 | print_image_info(II, &info); |
6057 | |
6058 | return true; |
6059 | } |
6060 | |
6061 | static void DumpProtocolSection(MachOObjectFile *O, const char *sect, |
6062 | uint32_t size, uint32_t addr) { |
6063 | SymbolAddressMap AddrMap; |
6064 | CreateSymbolAddressMap(O, &AddrMap); |
6065 | |
6066 | std::vector<SectionRef> Sections; |
6067 | for (const SectionRef &Section : O->sections()) { |
6068 | StringRef SectName; |
6069 | Section.getName(SectName); |
6070 | Sections.push_back(Section); |
6071 | } |
6072 | |
6073 | struct DisassembleInfo info(O, &AddrMap, &Sections, true); |
6074 | |
6075 | const char *p; |
6076 | struct objc_protocol_t protocol; |
6077 | uint32_t left, paddr; |
6078 | for (p = sect; p < sect + size; p += sizeof(struct objc_protocol_t)) { |
6079 | memset(&protocol, '\0', sizeof(struct objc_protocol_t)); |
6080 | left = size - (p - sect); |
6081 | if (left < sizeof(struct objc_protocol_t)) { |
6082 | outs() << "Protocol extends past end of __protocol section\n"; |
6083 | memcpy(&protocol, p, left); |
6084 | } else |
6085 | memcpy(&protocol, p, sizeof(struct objc_protocol_t)); |
6086 | if (O->isLittleEndian() != sys::IsLittleEndianHost) |
6087 | swapStruct(protocol); |
6088 | paddr = addr + (p - sect); |
6089 | outs() << "Protocol " << format("0x%" PRIx32"x", paddr); |
6090 | if (print_protocol(paddr, 0, &info)) |
6091 | outs() << "(not in an __OBJC section)\n"; |
6092 | } |
6093 | } |
6094 | |
6095 | #ifdef HAVE_LIBXAR |
6096 | inline void swapStruct(struct xar_header &xar) { |
6097 | sys::swapByteOrder(xar.magic); |
6098 | sys::swapByteOrder(xar.size); |
6099 | sys::swapByteOrder(xar.version); |
6100 | sys::swapByteOrder(xar.toc_length_compressed); |
6101 | sys::swapByteOrder(xar.toc_length_uncompressed); |
6102 | sys::swapByteOrder(xar.cksum_alg); |
6103 | } |
6104 | |
6105 | static void PrintModeVerbose(uint32_t mode) { |
6106 | switch(mode & S_IFMT){ |
6107 | case S_IFDIR: |
6108 | outs() << "d"; |
6109 | break; |
6110 | case S_IFCHR: |
6111 | outs() << "c"; |
6112 | break; |
6113 | case S_IFBLK: |
6114 | outs() << "b"; |
6115 | break; |
6116 | case S_IFREG: |
6117 | outs() << "-"; |
6118 | break; |
6119 | case S_IFLNK: |
6120 | outs() << "l"; |
6121 | break; |
6122 | case S_IFSOCK: |
6123 | outs() << "s"; |
6124 | break; |
6125 | default: |
6126 | outs() << "?"; |
6127 | break; |
6128 | } |
6129 | |
6130 | /* owner permissions */ |
6131 | if(mode & S_IREAD) |
6132 | outs() << "r"; |
6133 | else |
6134 | outs() << "-"; |
6135 | if(mode & S_IWRITE) |
6136 | outs() << "w"; |
6137 | else |
6138 | outs() << "-"; |
6139 | if(mode & S_ISUID) |
6140 | outs() << "s"; |
6141 | else if(mode & S_IEXEC) |
6142 | outs() << "x"; |
6143 | else |
6144 | outs() << "-"; |
6145 | |
6146 | /* group permissions */ |
6147 | if(mode & (S_IREAD >> 3)) |
6148 | outs() << "r"; |
6149 | else |
6150 | outs() << "-"; |
6151 | if(mode & (S_IWRITE >> 3)) |
6152 | outs() << "w"; |
6153 | else |
6154 | outs() << "-"; |
6155 | if(mode & S_ISGID) |
6156 | outs() << "s"; |
6157 | else if(mode & (S_IEXEC >> 3)) |
6158 | outs() << "x"; |
6159 | else |
6160 | outs() << "-"; |
6161 | |
6162 | /* other permissions */ |
6163 | if(mode & (S_IREAD >> 6)) |
6164 | outs() << "r"; |
6165 | else |
6166 | outs() << "-"; |
6167 | if(mode & (S_IWRITE >> 6)) |
6168 | outs() << "w"; |
6169 | else |
6170 | outs() << "-"; |
6171 | if(mode & S_ISVTX) |
6172 | outs() << "t"; |
6173 | else if(mode & (S_IEXEC >> 6)) |
6174 | outs() << "x"; |
6175 | else |
6176 | outs() << "-"; |
6177 | } |
6178 | |
6179 | static void PrintXarFilesSummary(const char *XarFilename, xar_t xar) { |
6180 | xar_file_t xf; |
6181 | const char *key, *type, *mode, *user, *group, *size, *mtime, *name, *m; |
6182 | char *endp; |
6183 | uint32_t mode_value; |
6184 | |
6185 | ScopedXarIter xi; |
6186 | if (!xi) { |
6187 | errs() << "Can't obtain an xar iterator for xar archive " |
6188 | << XarFilename << "\n"; |
6189 | return; |
6190 | } |
6191 | |
6192 | // Go through the xar's files. |
6193 | for (xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)) { |
6194 | ScopedXarIter xp; |
6195 | if(!xp){ |
6196 | errs() << "Can't obtain an xar iterator for xar archive " |
6197 | << XarFilename << "\n"; |
6198 | return; |
6199 | } |
6200 | type = nullptr; |
6201 | mode = nullptr; |
6202 | user = nullptr; |
6203 | group = nullptr; |
6204 | size = nullptr; |
6205 | mtime = nullptr; |
6206 | name = nullptr; |
6207 | for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ |
6208 | const char *val = nullptr; |
6209 | xar_prop_get(xf, key, &val); |
6210 | #if 0 // Useful for debugging. |
6211 | outs() << "key: " << key << " value: " << val << "\n"; |
6212 | #endif |
6213 | if(strcmp(key, "type") == 0) |
6214 | type = val; |
6215 | if(strcmp(key, "mode") == 0) |
6216 | mode = val; |
6217 | if(strcmp(key, "user") == 0) |
6218 | user = val; |
6219 | if(strcmp(key, "group") == 0) |
6220 | group = val; |
6221 | if(strcmp(key, "data/size") == 0) |
6222 | size = val; |
6223 | if(strcmp(key, "mtime") == 0) |
6224 | mtime = val; |
6225 | if(strcmp(key, "name") == 0) |
6226 | name = val; |
6227 | } |
6228 | if(mode != nullptr){ |
6229 | mode_value = strtoul(mode, &endp, 8); |
6230 | if(*endp != '\0') |
6231 | outs() << "(mode: \"" << mode << "\" contains non-octal chars) "; |
6232 | if(strcmp(type, "file") == 0) |
6233 | mode_value |= S_IFREG; |
6234 | PrintModeVerbose(mode_value); |
6235 | outs() << " "; |
6236 | } |
6237 | if(user != nullptr) |
6238 | outs() << format("%10s/", user); |
6239 | if(group != nullptr) |
6240 | outs() << format("%-10s ", group); |
6241 | if(size != nullptr) |
6242 | outs() << format("%7s ", size); |
6243 | if(mtime != nullptr){ |
6244 | for(m = mtime; *m != 'T' && *m != '\0'; m++) |
6245 | outs() << *m; |
6246 | if(*m == 'T') |
6247 | m++; |
6248 | outs() << " "; |
6249 | for( ; *m != 'Z' && *m != '\0'; m++) |
6250 | outs() << *m; |
6251 | outs() << " "; |
6252 | } |
6253 | if(name != nullptr) |
6254 | outs() << name; |
6255 | outs() << "\n"; |
6256 | } |
6257 | } |
6258 | |
6259 | static void DumpBitcodeSection(MachOObjectFile *O, const char *sect, |
6260 | uint32_t size, bool verbose, |
6261 | bool PrintXarHeader, bool PrintXarFileHeaders, |
6262 | std::string XarMemberName) { |
6263 | if(size < sizeof(struct xar_header)) { |
6264 | outs() << "size of (__LLVM,__bundle) section too small (smaller than size " |
6265 | "of struct xar_header)\n"; |
6266 | return; |
6267 | } |
6268 | struct xar_header XarHeader; |
6269 | memcpy(&XarHeader, sect, sizeof(struct xar_header)); |
6270 | if (sys::IsLittleEndianHost) |
6271 | swapStruct(XarHeader); |
6272 | if (PrintXarHeader) { |
6273 | if (!XarMemberName.empty()) |
6274 | outs() << "In xar member " << XarMemberName << ": "; |
6275 | else |
6276 | outs() << "For (__LLVM,__bundle) section: "; |
6277 | outs() << "xar header\n"; |
6278 | if (XarHeader.magic == XAR_HEADER_MAGIC) |
6279 | outs() << " magic XAR_HEADER_MAGIC\n"; |
6280 | else |
6281 | outs() << " magic " |
6282 | << format_hex(XarHeader.magic, 10, true) |
6283 | << " (not XAR_HEADER_MAGIC)\n"; |
6284 | outs() << " size " << XarHeader.size << "\n"; |
6285 | outs() << " version " << XarHeader.version << "\n"; |
6286 | outs() << " toc_length_compressed " << XarHeader.toc_length_compressed |
6287 | << "\n"; |
6288 | outs() << "toc_length_uncompressed " << XarHeader.toc_length_uncompressed |
6289 | << "\n"; |
6290 | outs() << " cksum_alg "; |
6291 | switch (XarHeader.cksum_alg) { |
6292 | case XAR_CKSUM_NONE: |
6293 | outs() << "XAR_CKSUM_NONE\n"; |
6294 | break; |
6295 | case XAR_CKSUM_SHA1: |
6296 | outs() << "XAR_CKSUM_SHA1\n"; |
6297 | break; |
6298 | case XAR_CKSUM_MD5: |
6299 | outs() << "XAR_CKSUM_MD5\n"; |
6300 | break; |
6301 | #ifdef XAR_CKSUM_SHA256 |
6302 | case XAR_CKSUM_SHA256: |
6303 | outs() << "XAR_CKSUM_SHA256\n"; |
6304 | break; |
6305 | #endif |
6306 | #ifdef XAR_CKSUM_SHA512 |
6307 | case XAR_CKSUM_SHA512: |
6308 | outs() << "XAR_CKSUM_SHA512\n"; |
6309 | break; |
6310 | #endif |
6311 | default: |
6312 | outs() << XarHeader.cksum_alg << "\n"; |
6313 | } |
6314 | } |
6315 | |
6316 | SmallString<128> XarFilename; |
6317 | int FD; |
6318 | std::error_code XarEC = |
6319 | sys::fs::createTemporaryFile("llvm-objdump", "xar", FD, XarFilename); |
6320 | if (XarEC) { |
6321 | errs() << XarEC.message() << "\n"; |
6322 | return; |
6323 | } |
6324 | ToolOutputFile XarFile(XarFilename, FD); |
6325 | raw_fd_ostream &XarOut = XarFile.os(); |
6326 | StringRef XarContents(sect, size); |
6327 | XarOut << XarContents; |
6328 | XarOut.close(); |
6329 | if (XarOut.has_error()) |
6330 | return; |
6331 | |
6332 | ScopedXarFile xar(XarFilename.c_str(), READ); |
6333 | if (!xar) { |
6334 | errs() << "Can't create temporary xar archive " << XarFilename << "\n"; |
6335 | return; |
6336 | } |
6337 | |
6338 | SmallString<128> TocFilename; |
6339 | std::error_code TocEC = |
6340 | sys::fs::createTemporaryFile("llvm-objdump", "toc", TocFilename); |
6341 | if (TocEC) { |
6342 | errs() << TocEC.message() << "\n"; |
6343 | return; |
6344 | } |
6345 | xar_serialize(xar, TocFilename.c_str()); |
6346 | |
6347 | if (PrintXarFileHeaders) { |
6348 | if (!XarMemberName.empty()) |
6349 | outs() << "In xar member " << XarMemberName << ": "; |
6350 | else |
6351 | outs() << "For (__LLVM,__bundle) section: "; |
6352 | outs() << "xar archive files:\n"; |
6353 | PrintXarFilesSummary(XarFilename.c_str(), xar); |
6354 | } |
6355 | |
6356 | ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr = |
6357 | MemoryBuffer::getFileOrSTDIN(TocFilename.c_str()); |
6358 | if (std::error_code EC = FileOrErr.getError()) { |
6359 | errs() << EC.message() << "\n"; |
6360 | return; |
6361 | } |
6362 | std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get(); |
6363 | |
6364 | if (!XarMemberName.empty()) |
6365 | outs() << "In xar member " << XarMemberName << ": "; |
6366 | else |
6367 | outs() << "For (__LLVM,__bundle) section: "; |
6368 | outs() << "xar table of contents:\n"; |
6369 | outs() << Buffer->getBuffer() << "\n"; |
6370 | |
6371 | // TODO: Go through the xar's files. |
6372 | ScopedXarIter xi; |
6373 | if(!xi){ |
6374 | errs() << "Can't obtain an xar iterator for xar archive " |
6375 | << XarFilename.c_str() << "\n"; |
6376 | return; |
6377 | } |
6378 | for(xar_file_t xf = xar_file_first(xar, xi); xf; xf = xar_file_next(xi)){ |
6379 | const char *key; |
6380 | const char *member_name, *member_type, *member_size_string; |
6381 | size_t member_size; |
6382 | |
6383 | ScopedXarIter xp; |
6384 | if(!xp){ |
6385 | errs() << "Can't obtain an xar iterator for xar archive " |
6386 | << XarFilename.c_str() << "\n"; |
6387 | return; |
6388 | } |
6389 | member_name = NULL__null; |
6390 | member_type = NULL__null; |
6391 | member_size_string = NULL__null; |
6392 | for(key = xar_prop_first(xf, xp); key; key = xar_prop_next(xp)){ |
6393 | const char *val = nullptr; |
6394 | xar_prop_get(xf, key, &val); |
6395 | #if 0 // Useful for debugging. |
6396 | outs() << "key: " << key << " value: " << val << "\n"; |
6397 | #endif |
6398 | if (strcmp(key, "name") == 0) |
6399 | member_name = val; |
6400 | if (strcmp(key, "type") == 0) |
6401 | member_type = val; |
6402 | if (strcmp(key, "data/size") == 0) |
6403 | member_size_string = val; |
6404 | } |
6405 | /* |
6406 | * If we find a file with a name, date/size and type properties |
6407 | * and with the type being "file" see if that is a xar file. |
6408 | */ |
6409 | if (member_name != NULL__null && member_type != NULL__null && |
6410 | strcmp(member_type, "file") == 0 && |
6411 | member_size_string != NULL__null){ |
6412 | // Extract the file into a buffer. |
6413 | char *endptr; |
6414 | member_size = strtoul(member_size_string, &endptr, 10); |
6415 | if (*endptr == '\0' && member_size != 0) { |
6416 | char *buffer; |
6417 | if (xar_extract_tobuffersz(xar, xf, &buffer, &member_size) == 0) { |
6418 | #if 0 // Useful for debugging. |
6419 | outs() << "xar member: " << member_name << " extracted\n"; |
6420 | #endif |
6421 | // Set the XarMemberName we want to see printed in the header. |
6422 | std::string OldXarMemberName; |
6423 | // If XarMemberName is already set this is nested. So |
6424 | // save the old name and create the nested name. |
6425 | if (!XarMemberName.empty()) { |
6426 | OldXarMemberName = XarMemberName; |
6427 | XarMemberName = |
6428 | (Twine("[") + XarMemberName + "]" + member_name).str(); |
6429 | } else { |
6430 | OldXarMemberName = ""; |
6431 | XarMemberName = member_name; |
6432 | } |
6433 | // See if this is could be a xar file (nested). |
6434 | if (member_size >= sizeof(struct xar_header)) { |
6435 | #if 0 // Useful for debugging. |
6436 | outs() << "could be a xar file: " << member_name << "\n"; |
6437 | #endif |
6438 | memcpy((char *)&XarHeader, buffer, sizeof(struct xar_header)); |
6439 | if (sys::IsLittleEndianHost) |
6440 | swapStruct(XarHeader); |
6441 | if (XarHeader.magic == XAR_HEADER_MAGIC) |
6442 | DumpBitcodeSection(O, buffer, member_size, verbose, |
6443 | PrintXarHeader, PrintXarFileHeaders, |
6444 | XarMemberName); |
6445 | } |
6446 | XarMemberName = OldXarMemberName; |
6447 | delete buffer; |
6448 | } |
6449 | } |
6450 | } |
6451 | } |
6452 | } |
6453 | #endif // defined(HAVE_LIBXAR) |
6454 | |
6455 | static void printObjcMetaData(MachOObjectFile *O, bool verbose) { |
6456 | if (O->is64Bit()) |
6457 | printObjc2_64bit_MetaData(O, verbose); |
6458 | else { |
6459 | MachO::mach_header H; |
6460 | H = O->getHeader(); |
6461 | if (H.cputype == MachO::CPU_TYPE_ARM) |
6462 | printObjc2_32bit_MetaData(O, verbose); |
6463 | else { |
6464 | // This is the 32-bit non-arm cputype case. Which is normally |
6465 | // the first Objective-C ABI. But it may be the case of a |
6466 | // binary for the iOS simulator which is the second Objective-C |
6467 | // ABI. In that case printObjc1_32bit_MetaData() will determine that |
6468 | // and return false. |
6469 | if (!printObjc1_32bit_MetaData(O, verbose)) |
6470 | printObjc2_32bit_MetaData(O, verbose); |
6471 | } |
6472 | } |
6473 | } |
6474 | |
6475 | // GuessLiteralPointer returns a string which for the item in the Mach-O file |
6476 | // for the address passed in as ReferenceValue for printing as a comment with |
6477 | // the instruction and also returns the corresponding type of that item |
6478 | // indirectly through ReferenceType. |
6479 | // |
6480 | // If ReferenceValue is an address of literal cstring then a pointer to the |
6481 | // cstring is returned and ReferenceType is set to |
6482 | // LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr . |
6483 | // |
6484 | // If ReferenceValue is an address of an Objective-C CFString, Selector ref or |
6485 | // Class ref that name is returned and the ReferenceType is set accordingly. |
6486 | // |
6487 | // Lastly, literals which are Symbol address in a literal pool are looked for |
6488 | // and if found the symbol name is returned and ReferenceType is set to |
6489 | // LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr . |
6490 | // |
6491 | // If there is no item in the Mach-O file for the address passed in as |
6492 | // ReferenceValue nullptr is returned and ReferenceType is unchanged. |
6493 | static const char *GuessLiteralPointer(uint64_t ReferenceValue, |
6494 | uint64_t ReferencePC, |
6495 | uint64_t *ReferenceType, |
6496 | struct DisassembleInfo *info) { |
6497 | // First see if there is an external relocation entry at the ReferencePC. |
6498 | if (info->O->getHeader().filetype == MachO::MH_OBJECT) { |
6499 | uint64_t sect_addr = info->S.getAddress(); |
6500 | uint64_t sect_offset = ReferencePC - sect_addr; |
6501 | bool reloc_found = false; |
6502 | DataRefImpl Rel; |
6503 | MachO::any_relocation_info RE; |
6504 | bool isExtern = false; |
6505 | SymbolRef Symbol; |
6506 | for (const RelocationRef &Reloc : info->S.relocations()) { |
6507 | uint64_t RelocOffset = Reloc.getOffset(); |
6508 | if (RelocOffset == sect_offset) { |
6509 | Rel = Reloc.getRawDataRefImpl(); |
6510 | RE = info->O->getRelocation(Rel); |
6511 | if (info->O->isRelocationScattered(RE)) |
6512 | continue; |
6513 | isExtern = info->O->getPlainRelocationExternal(RE); |
6514 | if (isExtern) { |
6515 | symbol_iterator RelocSym = Reloc.getSymbol(); |
6516 | Symbol = *RelocSym; |
6517 | } |
6518 | reloc_found = true; |
6519 | break; |
6520 | } |
6521 | } |
6522 | // If there is an external relocation entry for a symbol in a section |
6523 | // then used that symbol's value for the value of the reference. |
6524 | if (reloc_found && isExtern) { |
6525 | if (info->O->getAnyRelocationPCRel(RE)) { |
6526 | unsigned Type = info->O->getAnyRelocationType(RE); |
6527 | if (Type == MachO::X86_64_RELOC_SIGNED) { |
6528 | ReferenceValue = Symbol.getValue(); |
6529 | } |
6530 | } |
6531 | } |
6532 | } |
6533 | |
6534 | // Look for literals such as Objective-C CFStrings refs, Selector refs, |
6535 | // Message refs and Class refs. |
6536 | bool classref, selref, msgref, cfstring; |
6537 | uint64_t pointer_value = GuessPointerPointer(ReferenceValue, info, classref, |
6538 | selref, msgref, cfstring); |
6539 | if (classref && pointer_value == 0) { |
6540 | // Note the ReferenceValue is a pointer into the __objc_classrefs section. |
6541 | // And the pointer_value in that section is typically zero as it will be |
6542 | // set by dyld as part of the "bind information". |
6543 | const char *name = get_dyld_bind_info_symbolname(ReferenceValue, info); |
6544 | if (name != nullptr) { |
6545 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref8; |
6546 | const char *class_name = strrchr(name, '$'); |
6547 | if (class_name != nullptr && class_name[1] == '_' && |
6548 | class_name[2] != '\0') { |
6549 | info->class_name = class_name + 2; |
6550 | return name; |
6551 | } |
6552 | } |
6553 | } |
6554 | |
6555 | if (classref) { |
6556 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref8; |
6557 | const char *name = |
6558 | get_objc2_64bit_class_name(pointer_value, ReferenceValue, info); |
6559 | if (name != nullptr) |
6560 | info->class_name = name; |
6561 | else |
6562 | name = "bad class ref"; |
6563 | return name; |
6564 | } |
6565 | |
6566 | if (cfstring) { |
6567 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref4; |
6568 | const char *name = get_objc2_64bit_cfstring_name(ReferenceValue, info); |
6569 | return name; |
6570 | } |
6571 | |
6572 | if (selref && pointer_value == 0) |
6573 | pointer_value = get_objc2_64bit_selref(ReferenceValue, info); |
6574 | |
6575 | if (pointer_value != 0) |
6576 | ReferenceValue = pointer_value; |
6577 | |
6578 | const char *name = GuessCstringPointer(ReferenceValue, info); |
6579 | if (name) { |
6580 | if (pointer_value != 0 && selref) { |
6581 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref7; |
6582 | info->selector_name = name; |
6583 | } else if (pointer_value != 0 && msgref) { |
6584 | info->class_name = nullptr; |
6585 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref6; |
6586 | info->selector_name = name; |
6587 | } else |
6588 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr3; |
6589 | return name; |
6590 | } |
6591 | |
6592 | // Lastly look for an indirect symbol with this ReferenceValue which is in |
6593 | // a literal pool. If found return that symbol name. |
6594 | name = GuessIndirectSymbol(ReferenceValue, info); |
6595 | if (name) { |
6596 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr2; |
6597 | return name; |
6598 | } |
6599 | |
6600 | return nullptr; |
6601 | } |
6602 | |
6603 | // SymbolizerSymbolLookUp is the symbol lookup function passed when creating |
6604 | // the Symbolizer. It looks up the ReferenceValue using the info passed via the |
6605 | // pointer to the struct DisassembleInfo that was passed when MCSymbolizer |
6606 | // is created and returns the symbol name that matches the ReferenceValue or |
6607 | // nullptr if none. The ReferenceType is passed in for the IN type of |
6608 | // reference the instruction is making from the values in defined in the header |
6609 | // "llvm-c/Disassembler.h". On return the ReferenceType can set to a specific |
6610 | // Out type and the ReferenceName will also be set which is added as a comment |
6611 | // to the disassembled instruction. |
6612 | // |
6613 | // If the symbol name is a C++ mangled name then the demangled name is |
6614 | // returned through ReferenceName and ReferenceType is set to |
6615 | // LLVMDisassembler_ReferenceType_DeMangled_Name . |
6616 | // |
6617 | // When this is called to get a symbol name for a branch target then the |
6618 | // ReferenceType will be LLVMDisassembler_ReferenceType_In_Branch and then |
6619 | // SymbolValue will be looked for in the indirect symbol table to determine if |
6620 | // it is an address for a symbol stub. If so then the symbol name for that |
6621 | // stub is returned indirectly through ReferenceName and then ReferenceType is |
6622 | // set to LLVMDisassembler_ReferenceType_Out_SymbolStub. |
6623 | // |
6624 | // When this is called with an value loaded via a PC relative load then |
6625 | // ReferenceType will be LLVMDisassembler_ReferenceType_In_PCrel_Load then the |
6626 | // SymbolValue is checked to be an address of literal pointer, symbol pointer, |
6627 | // or an Objective-C meta data reference. If so the output ReferenceType is |
6628 | // set to correspond to that as well as setting the ReferenceName. |
6629 | static const char *SymbolizerSymbolLookUp(void *DisInfo, |
6630 | uint64_t ReferenceValue, |
6631 | uint64_t *ReferenceType, |
6632 | uint64_t ReferencePC, |
6633 | const char **ReferenceName) { |
6634 | struct DisassembleInfo *info = (struct DisassembleInfo *)DisInfo; |
6635 | // If no verbose symbolic information is wanted then just return nullptr. |
6636 | if (!info->verbose) { |
6637 | *ReferenceName = nullptr; |
6638 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6639 | return nullptr; |
6640 | } |
6641 | |
6642 | const char *SymbolName = GuessSymbolName(ReferenceValue, info->AddrMap); |
6643 | |
6644 | if (*ReferenceType == LLVMDisassembler_ReferenceType_In_Branch1) { |
6645 | *ReferenceName = GuessIndirectSymbol(ReferenceValue, info); |
6646 | if (*ReferenceName != nullptr) { |
6647 | method_reference(info, ReferenceType, ReferenceName); |
6648 | if (*ReferenceType != LLVMDisassembler_ReferenceType_Out_Objc_Message5) |
6649 | *ReferenceType = LLVMDisassembler_ReferenceType_Out_SymbolStub1; |
6650 | } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { |
6651 | if (info->demangled_name != nullptr) |
6652 | free(info->demangled_name); |
6653 | int status; |
6654 | info->demangled_name = |
6655 | itaniumDemangle(SymbolName + 1, nullptr, nullptr, &status); |
6656 | if (info->demangled_name != nullptr) { |
6657 | *ReferenceName = info->demangled_name; |
6658 | *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name9; |
6659 | } else |
6660 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6661 | } else |
6662 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6663 | } else if (*ReferenceType == LLVMDisassembler_ReferenceType_In_PCrel_Load2) { |
6664 | *ReferenceName = |
6665 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6666 | if (*ReferenceName) |
6667 | method_reference(info, ReferenceType, ReferenceName); |
6668 | else |
6669 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6670 | // If this is arm64 and the reference is an adrp instruction save the |
6671 | // instruction, passed in ReferenceValue and the address of the instruction |
6672 | // for use later if we see and add immediate instruction. |
6673 | } else if (info->O->getArch() == Triple::aarch64 && |
6674 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADRP0x100000001) { |
6675 | info->adrp_inst = ReferenceValue; |
6676 | info->adrp_addr = ReferencePC; |
6677 | SymbolName = nullptr; |
6678 | *ReferenceName = nullptr; |
6679 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6680 | // If this is arm64 and reference is an add immediate instruction and we |
6681 | // have |
6682 | // seen an adrp instruction just before it and the adrp's Xd register |
6683 | // matches |
6684 | // this add's Xn register reconstruct the value being referenced and look to |
6685 | // see if it is a literal pointer. Note the add immediate instruction is |
6686 | // passed in ReferenceValue. |
6687 | } else if (info->O->getArch() == Triple::aarch64 && |
6688 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADDXri0x100000002 && |
6689 | ReferencePC - 4 == info->adrp_addr && |
6690 | (info->adrp_inst & 0x9f000000) == 0x90000000 && |
6691 | (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { |
6692 | uint32_t addxri_inst; |
6693 | uint64_t adrp_imm, addxri_imm; |
6694 | |
6695 | adrp_imm = |
6696 | ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); |
6697 | if (info->adrp_inst & 0x0200000) |
6698 | adrp_imm |= 0xfffffffffc000000LL; |
6699 | |
6700 | addxri_inst = ReferenceValue; |
6701 | addxri_imm = (addxri_inst >> 10) & 0xfff; |
6702 | if (((addxri_inst >> 22) & 0x3) == 1) |
6703 | addxri_imm <<= 12; |
6704 | |
6705 | ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + |
6706 | (adrp_imm << 12) + addxri_imm; |
6707 | |
6708 | *ReferenceName = |
6709 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6710 | if (*ReferenceName == nullptr) |
6711 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6712 | // If this is arm64 and the reference is a load register instruction and we |
6713 | // have seen an adrp instruction just before it and the adrp's Xd register |
6714 | // matches this add's Xn register reconstruct the value being referenced and |
6715 | // look to see if it is a literal pointer. Note the load register |
6716 | // instruction is passed in ReferenceValue. |
6717 | } else if (info->O->getArch() == Triple::aarch64 && |
6718 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXui0x100000003 && |
6719 | ReferencePC - 4 == info->adrp_addr && |
6720 | (info->adrp_inst & 0x9f000000) == 0x90000000 && |
6721 | (info->adrp_inst & 0x1f) == ((ReferenceValue >> 5) & 0x1f)) { |
6722 | uint32_t ldrxui_inst; |
6723 | uint64_t adrp_imm, ldrxui_imm; |
6724 | |
6725 | adrp_imm = |
6726 | ((info->adrp_inst & 0x00ffffe0) >> 3) | ((info->adrp_inst >> 29) & 0x3); |
6727 | if (info->adrp_inst & 0x0200000) |
6728 | adrp_imm |= 0xfffffffffc000000LL; |
6729 | |
6730 | ldrxui_inst = ReferenceValue; |
6731 | ldrxui_imm = (ldrxui_inst >> 10) & 0xfff; |
6732 | |
6733 | ReferenceValue = (info->adrp_addr & 0xfffffffffffff000LL) + |
6734 | (adrp_imm << 12) + (ldrxui_imm << 3); |
6735 | |
6736 | *ReferenceName = |
6737 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6738 | if (*ReferenceName == nullptr) |
6739 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6740 | } |
6741 | // If this arm64 and is an load register (PC-relative) instruction the |
6742 | // ReferenceValue is the PC plus the immediate value. |
6743 | else if (info->O->getArch() == Triple::aarch64 && |
6744 | (*ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_LDRXl0x100000004 || |
6745 | *ReferenceType == LLVMDisassembler_ReferenceType_In_ARM64_ADR0x100000005)) { |
6746 | *ReferenceName = |
6747 | GuessLiteralPointer(ReferenceValue, ReferencePC, ReferenceType, info); |
6748 | if (*ReferenceName == nullptr) |
6749 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6750 | } else if (SymbolName != nullptr && strncmp(SymbolName, "__Z", 3) == 0) { |
6751 | if (info->demangled_name != nullptr) |
6752 | free(info->demangled_name); |
6753 | int status; |
6754 | info->demangled_name = |
6755 | itaniumDemangle(SymbolName + 1, nullptr, nullptr, &status); |
6756 | if (info->demangled_name != nullptr) { |
6757 | *ReferenceName = info->demangled_name; |
6758 | *ReferenceType = LLVMDisassembler_ReferenceType_DeMangled_Name9; |
6759 | } |
6760 | } |
6761 | else { |
6762 | *ReferenceName = nullptr; |
6763 | *ReferenceType = LLVMDisassembler_ReferenceType_InOut_None0; |
6764 | } |
6765 | |
6766 | return SymbolName; |
6767 | } |
6768 | |
6769 | /// Emits the comments that are stored in the CommentStream. |
6770 | /// Each comment in the CommentStream must end with a newline. |
6771 | static void emitComments(raw_svector_ostream &CommentStream, |
6772 | SmallString<128> &CommentsToEmit, |
6773 | formatted_raw_ostream &FormattedOS, |
6774 | const MCAsmInfo &MAI) { |
6775 | // Flush the stream before taking its content. |
6776 | StringRef Comments = CommentsToEmit.str(); |
6777 | // Get the default information for printing a comment. |
6778 | StringRef CommentBegin = MAI.getCommentString(); |
6779 | unsigned CommentColumn = MAI.getCommentColumn(); |
6780 | bool IsFirst = true; |
6781 | while (!Comments.empty()) { |
6782 | if (!IsFirst) |
6783 | FormattedOS << '\n'; |
6784 | // Emit a line of comments. |
6785 | FormattedOS.PadToColumn(CommentColumn); |
6786 | size_t Position = Comments.find('\n'); |
6787 | FormattedOS << CommentBegin << ' ' << Comments.substr(0, Position); |
6788 | // Move after the newline character. |
6789 | Comments = Comments.substr(Position + 1); |
6790 | IsFirst = false; |
6791 | } |
6792 | FormattedOS.flush(); |
6793 | |
6794 | // Tell the comment stream that the vector changed underneath it. |
6795 | CommentsToEmit.clear(); |
6796 | } |
6797 | |
6798 | static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF, |
6799 | StringRef DisSegName, StringRef DisSectName) { |
6800 | const char *McpuDefault = nullptr; |
6801 | const Target *ThumbTarget = nullptr; |
6802 | const Target *TheTarget = GetTarget(MachOOF, &McpuDefault, &ThumbTarget); |
6803 | if (!TheTarget) { |
6804 | // GetTarget prints out stuff. |
6805 | return; |
6806 | } |
6807 | std::string MachOMCPU; |
6808 | if (MCPU.empty() && McpuDefault) |
6809 | MachOMCPU = McpuDefault; |
6810 | else |
6811 | MachOMCPU = MCPU; |
6812 | |
6813 | std::unique_ptr<const MCInstrInfo> InstrInfo(TheTarget->createMCInstrInfo()); |
6814 | std::unique_ptr<const MCInstrInfo> ThumbInstrInfo; |
6815 | if (ThumbTarget) |
6816 | ThumbInstrInfo.reset(ThumbTarget->createMCInstrInfo()); |
6817 | |
6818 | // Package up features to be passed to target/subtarget |
6819 | std::string FeaturesStr; |
6820 | if (MAttrs.size()) { |
6821 | SubtargetFeatures Features; |
6822 | for (unsigned i = 0; i != MAttrs.size(); ++i) |
6823 | Features.AddFeature(MAttrs[i]); |
6824 | FeaturesStr = Features.getString(); |
6825 | } |
6826 | |
6827 | // Set up disassembler. |
6828 | std::unique_ptr<const MCRegisterInfo> MRI( |
6829 | TheTarget->createMCRegInfo(TripleName)); |
6830 | std::unique_ptr<const MCAsmInfo> AsmInfo( |
6831 | TheTarget->createMCAsmInfo(*MRI, TripleName)); |
6832 | std::unique_ptr<const MCSubtargetInfo> STI( |
6833 | TheTarget->createMCSubtargetInfo(TripleName, MachOMCPU, FeaturesStr)); |
6834 | MCContext Ctx(AsmInfo.get(), MRI.get(), nullptr); |
6835 | std::unique_ptr<MCDisassembler> DisAsm( |
6836 | TheTarget->createMCDisassembler(*STI, Ctx)); |
6837 | std::unique_ptr<MCSymbolizer> Symbolizer; |
6838 | struct DisassembleInfo SymbolizerInfo(nullptr, nullptr, nullptr, false); |
6839 | std::unique_ptr<MCRelocationInfo> RelInfo( |
6840 | TheTarget->createMCRelocationInfo(TripleName, Ctx)); |
6841 | if (RelInfo) { |
6842 | Symbolizer.reset(TheTarget->createMCSymbolizer( |
6843 | TripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, |
6844 | &SymbolizerInfo, &Ctx, std::move(RelInfo))); |
6845 | DisAsm->setSymbolizer(std::move(Symbolizer)); |
6846 | } |
6847 | int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); |
6848 | std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( |
6849 | Triple(TripleName), AsmPrinterVariant, *AsmInfo, *InstrInfo, *MRI)); |
6850 | // Set the display preference for hex vs. decimal immediates. |
6851 | IP->setPrintImmHex(PrintImmHex); |
6852 | // Comment stream and backing vector. |
6853 | SmallString<128> CommentsToEmit; |
6854 | raw_svector_ostream CommentStream(CommentsToEmit); |
6855 | // FIXME: Setting the CommentStream in the InstPrinter is problematic in that |
6856 | // if it is done then arm64 comments for string literals don't get printed |
6857 | // and some constant get printed instead and not setting it causes intel |
6858 | // (32-bit and 64-bit) comments printed with different spacing before the |
6859 | // comment causing different diffs with the 'C' disassembler library API. |
6860 | // IP->setCommentStream(CommentStream); |
6861 | |
6862 | if (!AsmInfo || !STI || !DisAsm || !IP) { |
6863 | errs() << "error: couldn't initialize disassembler for target " |
6864 | << TripleName << '\n'; |
6865 | return; |
6866 | } |
6867 | |
6868 | // Set up separate thumb disassembler if needed. |
6869 | std::unique_ptr<const MCRegisterInfo> ThumbMRI; |
6870 | std::unique_ptr<const MCAsmInfo> ThumbAsmInfo; |
6871 | std::unique_ptr<const MCSubtargetInfo> ThumbSTI; |
6872 | std::unique_ptr<MCDisassembler> ThumbDisAsm; |
6873 | std::unique_ptr<MCInstPrinter> ThumbIP; |
6874 | std::unique_ptr<MCContext> ThumbCtx; |
6875 | std::unique_ptr<MCSymbolizer> ThumbSymbolizer; |
6876 | struct DisassembleInfo ThumbSymbolizerInfo(nullptr, nullptr, nullptr, false); |
6877 | std::unique_ptr<MCRelocationInfo> ThumbRelInfo; |
6878 | if (ThumbTarget) { |
6879 | ThumbMRI.reset(ThumbTarget->createMCRegInfo(ThumbTripleName)); |
6880 | ThumbAsmInfo.reset( |
6881 | ThumbTarget->createMCAsmInfo(*ThumbMRI, ThumbTripleName)); |
6882 | ThumbSTI.reset( |
6883 | ThumbTarget->createMCSubtargetInfo(ThumbTripleName, MachOMCPU, |
6884 | FeaturesStr)); |
6885 | ThumbCtx.reset(new MCContext(ThumbAsmInfo.get(), ThumbMRI.get(), nullptr)); |
6886 | ThumbDisAsm.reset(ThumbTarget->createMCDisassembler(*ThumbSTI, *ThumbCtx)); |
6887 | MCContext *PtrThumbCtx = ThumbCtx.get(); |
6888 | ThumbRelInfo.reset( |
6889 | ThumbTarget->createMCRelocationInfo(ThumbTripleName, *PtrThumbCtx)); |
6890 | if (ThumbRelInfo) { |
6891 | ThumbSymbolizer.reset(ThumbTarget->createMCSymbolizer( |
6892 | ThumbTripleName, SymbolizerGetOpInfo, SymbolizerSymbolLookUp, |
6893 | &ThumbSymbolizerInfo, PtrThumbCtx, std::move(ThumbRelInfo))); |
6894 | ThumbDisAsm->setSymbolizer(std::move(ThumbSymbolizer)); |
6895 | } |
6896 | int ThumbAsmPrinterVariant = ThumbAsmInfo->getAssemblerDialect(); |
6897 | ThumbIP.reset(ThumbTarget->createMCInstPrinter( |
6898 | Triple(ThumbTripleName), ThumbAsmPrinterVariant, *ThumbAsmInfo, |
6899 | *ThumbInstrInfo, *ThumbMRI)); |
6900 | // Set the display preference for hex vs. decimal immediates. |
6901 | ThumbIP->setPrintImmHex(PrintImmHex); |
6902 | } |
6903 | |
6904 | if (ThumbTarget && (!ThumbAsmInfo || !ThumbSTI || !ThumbDisAsm || !ThumbIP)) { |
6905 | errs() << "error: couldn't initialize disassembler for target " |
6906 | << ThumbTripleName << '\n'; |
6907 | return; |
6908 | } |
6909 | |
6910 | MachO::mach_header Header = MachOOF->getHeader(); |
6911 | |
6912 | // FIXME: Using the -cfg command line option, this code used to be able to |
6913 | // annotate relocations with the referenced symbol's name, and if this was |
6914 | // inside a __[cf]string section, the data it points to. This is now replaced |
6915 | // by the upcoming MCSymbolizer, which needs the appropriate setup done above. |
6916 | std::vector<SectionRef> Sections; |
6917 | std::vector<SymbolRef> Symbols; |
6918 | SmallVector<uint64_t, 8> FoundFns; |
6919 | uint64_t BaseSegmentAddress; |
6920 | |
6921 | getSectionsAndSymbols(MachOOF, Sections, Symbols, FoundFns, |
6922 | BaseSegmentAddress); |
6923 | |
6924 | // Sort the symbols by address, just in case they didn't come in that way. |
6925 | llvm::sort(Symbols, SymbolSorter()); |
6926 | |
6927 | // Build a data in code table that is sorted on by the address of each entry. |
6928 | uint64_t BaseAddress = 0; |
6929 | if (Header.filetype == MachO::MH_OBJECT) |
6930 | BaseAddress = Sections[0].getAddress(); |
6931 | else |
6932 | BaseAddress = BaseSegmentAddress; |
6933 | DiceTable Dices; |
6934 | for (dice_iterator DI = MachOOF->begin_dices(), DE = MachOOF->end_dices(); |
6935 | DI != DE; ++DI) { |
6936 | uint32_t Offset; |
6937 | DI->getOffset(Offset); |
6938 | Dices.push_back(std::make_pair(BaseAddress + Offset, *DI)); |
6939 | } |
6940 | array_pod_sort(Dices.begin(), Dices.end()); |
6941 | |
6942 | #ifndef NDEBUG |
6943 | raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); |
6944 | #else |
6945 | raw_ostream &DebugOut = nulls(); |
6946 | #endif |
6947 | |
6948 | std::unique_ptr<DIContext> diContext; |
6949 | ObjectFile *DbgObj = MachOOF; |
6950 | std::unique_ptr<MemoryBuffer> DSYMBuf; |
6951 | // Try to find debug info and set up the DIContext for it. |
6952 | if (UseDbg) { |
6953 | // A separate DSym file path was specified, parse it as a macho file, |
6954 | // get the sections and supply it to the section name parsing machinery. |
6955 | if (!DSYMFile.empty()) { |
6956 | ErrorOr<std::unique_ptr<MemoryBuffer>> BufOrErr = |
6957 | MemoryBuffer::getFileOrSTDIN(DSYMFile); |
6958 | if (std::error_code EC = BufOrErr.getError()) { |
6959 | errs() << "llvm-objdump: " << Filename << ": " << EC.message() << '\n'; |
6960 | return; |
6961 | } |
6962 | Expected<std::unique_ptr<MachOObjectFile>> DbgObjCheck = |
6963 | ObjectFile::createMachOObjectFile(BufOrErr.get()->getMemBufferRef()); |
6964 | |
6965 | if (DbgObjCheck.takeError()) |
6966 | report_error(MachOOF->getFileName(), DbgObjCheck.takeError()); |
6967 | DbgObj = DbgObjCheck.get().release(); |
6968 | // We need to keep the file alive, because we're replacing DbgObj with it. |
6969 | DSYMBuf = std::move(BufOrErr.get()); |
6970 | } |
6971 | |
6972 | // Setup the DIContext |
6973 | diContext = DWARFContext::create(*DbgObj); |
6974 | } |
6975 | |
6976 | if (FilterSections.size() == 0) |
6977 | outs() << "(" << DisSegName << "," << DisSectName << ") section\n"; |
6978 | |
6979 | for (unsigned SectIdx = 0; SectIdx != Sections.size(); SectIdx++) { |
6980 | StringRef SectName; |
6981 | if (Sections[SectIdx].getName(SectName) || SectName != DisSectName) |
6982 | continue; |
6983 | |
6984 | DataRefImpl DR = Sections[SectIdx].getRawDataRefImpl(); |
6985 | |
6986 | StringRef SegmentName = MachOOF->getSectionFinalSegmentName(DR); |
6987 | if (SegmentName != DisSegName) |
6988 | continue; |
6989 | |
6990 | StringRef BytesStr; |
6991 | Sections[SectIdx].getContents(BytesStr); |
6992 | ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()), |
6993 | BytesStr.size()); |
6994 | uint64_t SectAddress = Sections[SectIdx].getAddress(); |
6995 | |
6996 | bool symbolTableWorked = false; |
6997 | |
6998 | // Create a map of symbol addresses to symbol names for use by |
6999 | // the SymbolizerSymbolLookUp() routine. |
7000 | SymbolAddressMap AddrMap; |
7001 | bool DisSymNameFound = false; |
7002 | for (const SymbolRef &Symbol : MachOOF->symbols()) { |
7003 | Expected<SymbolRef::Type> STOrErr = Symbol.getType(); |
7004 | if (!STOrErr) |
7005 | report_error(MachOOF->getFileName(), STOrErr.takeError()); |
7006 | SymbolRef::Type ST = *STOrErr; |
7007 | if (ST == SymbolRef::ST_Function || ST == SymbolRef::ST_Data || |
7008 | ST == SymbolRef::ST_Other) { |
7009 | uint64_t Address = Symbol.getValue(); |
7010 | Expected<StringRef> SymNameOrErr = Symbol.getName(); |
7011 | if (!SymNameOrErr) |
7012 | report_error(MachOOF->getFileName(), SymNameOrErr.takeError()); |
7013 | StringRef SymName = *SymNameOrErr; |
7014 | AddrMap[Address] = SymName; |
7015 | if (!DisSymName.empty() && DisSymName == SymName) |
7016 | DisSymNameFound = true; |
7017 | } |
7018 | } |
7019 | if (!DisSymName.empty() && !DisSymNameFound) { |
7020 | outs() << "Can't find -dis-symname: " << DisSymName << "\n"; |
7021 | return; |
7022 | } |
7023 | // Set up the block of info used by the Symbolizer call backs. |
7024 | SymbolizerInfo.verbose = !NoSymbolicOperands; |
7025 | SymbolizerInfo.O = MachOOF; |
7026 | SymbolizerInfo.S = Sections[SectIdx]; |
7027 | SymbolizerInfo.AddrMap = &AddrMap; |
7028 | SymbolizerInfo.Sections = &Sections; |
7029 | // Same for the ThumbSymbolizer |
7030 | ThumbSymbolizerInfo.verbose = !NoSymbolicOperands; |
7031 | ThumbSymbolizerInfo.O = MachOOF; |
7032 | ThumbSymbolizerInfo.S = Sections[SectIdx]; |
7033 | ThumbSymbolizerInfo.AddrMap = &AddrMap; |
7034 | ThumbSymbolizerInfo.Sections = &Sections; |
7035 | |
7036 | unsigned int Arch = MachOOF->getArch(); |
7037 | |
7038 | // Skip all symbols if this is a stubs file. |
7039 | if (Bytes.size() == 0) |
7040 | return; |
7041 | |
7042 | // If the section has symbols but no symbol at the start of the section |
7043 | // these are used to make sure the bytes before the first symbol are |
7044 | // disassembled. |
7045 | bool FirstSymbol = true; |
7046 | bool FirstSymbolAtSectionStart = true; |
7047 | |
7048 | // Disassemble symbol by symbol. |
7049 | for (unsigned SymIdx = 0; SymIdx != Symbols.size(); SymIdx++) { |
7050 | Expected<StringRef> SymNameOrErr = Symbols[SymIdx].getName(); |
7051 | if (!SymNameOrErr) |
7052 | report_error(MachOOF->getFileName(), SymNameOrErr.takeError()); |
7053 | StringRef SymName = *SymNameOrErr; |
7054 | |
7055 | Expected<SymbolRef::Type> STOrErr = Symbols[SymIdx].getType(); |
7056 | if (!STOrErr) |
7057 | report_error(MachOOF->getFileName(), STOrErr.takeError()); |
7058 | SymbolRef::Type ST = *STOrErr; |
7059 | if (ST != SymbolRef::ST_Function && ST != SymbolRef::ST_Data) |
7060 | continue; |
7061 | |
7062 | // Make sure the symbol is defined in this section. |
7063 | bool containsSym = Sections[SectIdx].containsSymbol(Symbols[SymIdx]); |
7064 | if (!containsSym) { |
7065 | if (!DisSymName.empty() && DisSymName == SymName) { |
7066 | outs() << "-dis-symname: " << DisSymName << " not in the section\n"; |
7067 | return; |
7068 | } |
7069 | continue; |
7070 | } |
7071 | // The __mh_execute_header is special and we need to deal with that fact |
7072 | // this symbol is before the start of the (__TEXT,__text) section and at the |
7073 | // address of the start of the __TEXT segment. This is because this symbol |
7074 | // is an N_SECT symbol in the (__TEXT,__text) but its address is before the |
7075 | // start of the section in a standard MH_EXECUTE filetype. |
7076 | if (!DisSymName.empty() && DisSymName == "__mh_execute_header") { |
7077 | outs() << "-dis-symname: __mh_execute_header not in any section\n"; |
7078 | return; |
7079 | } |
7080 | // When this code is trying to disassemble a symbol at a time and in the |
7081 | // case there is only the __mh_execute_header symbol left as in a stripped |
7082 | // executable, we need to deal with this by ignoring this symbol so the |
7083 | // whole section is disassembled and this symbol is then not displayed. |
7084 | if (SymName == "__mh_execute_header" || SymName == "__mh_dylib_header" || |
7085 | SymName == "__mh_bundle_header" || SymName == "__mh_object_header" || |
7086 | SymName == "__mh_preload_header" || SymName == "__mh_dylinker_header") |
7087 | continue; |
7088 | |
7089 | // If we are only disassembling one symbol see if this is that symbol. |
7090 | if (!DisSymName.empty() && DisSymName != SymName) |
7091 | continue; |
7092 | |
7093 | // Start at the address of the symbol relative to the section's address. |
7094 | uint64_t SectSize = Sections[SectIdx].getSize(); |
7095 | uint64_t Start = Symbols[SymIdx].getValue(); |
7096 | uint64_t SectionAddress = Sections[SectIdx].getAddress(); |
7097 | Start -= SectionAddress; |
7098 | |
7099 | if (Start > SectSize) { |
7100 | outs() << "section data ends, " << SymName |
7101 | << " lies outside valid range\n"; |
7102 | return; |
7103 | } |
7104 | |
7105 | // Stop disassembling either at the beginning of the next symbol or at |
7106 | // the end of the section. |
7107 | bool containsNextSym = false; |
7108 | uint64_t NextSym = 0; |
7109 | uint64_t NextSymIdx = SymIdx + 1; |
7110 | while (Symbols.size() > NextSymIdx) { |
7111 | Expected<SymbolRef::Type> STOrErr = Symbols[NextSymIdx].getType(); |
7112 | if (!STOrErr) |
7113 | report_error(MachOOF->getFileName(), STOrErr.takeError()); |
7114 | SymbolRef::Type NextSymType = *STOrErr; |
7115 | if (NextSymType == SymbolRef::ST_Function) { |
7116 | containsNextSym = |
7117 | Sections[SectIdx].containsSymbol(Symbols[NextSymIdx]); |
7118 | NextSym = Symbols[NextSymIdx].getValue(); |
7119 | NextSym -= SectionAddress; |
7120 | break; |
7121 | } |
7122 | ++NextSymIdx; |
7123 | } |
7124 | |
7125 | uint64_t End = containsNextSym ? std::min(NextSym, SectSize) : SectSize; |
7126 | uint64_t Size; |
7127 | |
7128 | symbolTableWorked = true; |
7129 | |
7130 | DataRefImpl Symb = Symbols[SymIdx].getRawDataRefImpl(); |
7131 | bool IsThumb = MachOOF->getSymbolFlags(Symb) & SymbolRef::SF_Thumb; |
7132 | |
7133 | // We only need the dedicated Thumb target if there's a real choice |
7134 | // (i.e. we're not targeting M-class) and the function is Thumb. |
7135 | bool UseThumbTarget = IsThumb && ThumbTarget; |
7136 | |
7137 | // If we are not specifying a symbol to start disassembly with and this |
7138 | // is the first symbol in the section but not at the start of the section |
7139 | // then move the disassembly index to the start of the section and |
7140 | // don't print the symbol name just yet. This is so the bytes before the |
7141 | // first symbol are disassembled. |
7142 | uint64_t SymbolStart = Start; |
7143 | if (DisSymName.empty() && FirstSymbol && Start != 0) { |
7144 | FirstSymbolAtSectionStart = false; |
7145 | Start = 0; |
7146 | } |
7147 | else |
7148 | outs() << SymName << ":\n"; |
7149 | |
7150 | DILineInfo lastLine; |
7151 | for (uint64_t Index = Start; Index < End; Index += Size) { |
7152 | MCInst Inst; |
7153 | |
7154 | // If this is the first symbol in the section and it was not at the |
7155 | // start of the section, see if we are at its Index now and if so print |
7156 | // the symbol name. |
7157 | if (FirstSymbol && !FirstSymbolAtSectionStart && Index == SymbolStart) |
7158 | outs() << SymName << ":\n"; |
7159 | |
7160 | uint64_t PC = SectAddress + Index; |
7161 | if (!NoLeadingAddr) { |
7162 | if (FullLeadingAddr) { |
7163 | if (MachOOF->is64Bit()) |
7164 | outs() << format("%016" PRIx64"l" "x", PC); |
7165 | else |
7166 | outs() << format("%08" PRIx64"l" "x", PC); |
7167 | } else { |
7168 | outs() << format("%8" PRIx64"l" "x" ":", PC); |
7169 | } |
7170 | } |
7171 | if (!NoShowRawInsn || Arch == Triple::arm) |
7172 | outs() << "\t"; |
7173 | |
7174 | // Check the data in code table here to see if this is data not an |
7175 | // instruction to be disassembled. |
7176 | DiceTable Dice; |
7177 | Dice.push_back(std::make_pair(PC, DiceRef())); |
7178 | dice_table_iterator DTI = |
7179 | std::search(Dices.begin(), Dices.end(), Dice.begin(), Dice.end(), |
7180 | compareDiceTableEntries); |
7181 | if (DTI != Dices.end()) { |
7182 | uint16_t Length; |
7183 | DTI->second.getLength(Length); |
7184 | uint16_t Kind; |
7185 | DTI->second.getKind(Kind); |
7186 | Size = DumpDataInCode(Bytes.data() + Index, Length, Kind); |
7187 | if ((Kind == MachO::DICE_KIND_JUMP_TABLE8) && |
7188 | (PC == (DTI->first + Length - 1)) && (Length & 1)) |
7189 | Size++; |
7190 | continue; |
7191 | } |
7192 | |
7193 | SmallVector<char, 64> AnnotationsBytes; |
7194 | raw_svector_ostream Annotations(AnnotationsBytes); |
7195 | |
7196 | bool gotInst; |
7197 | if (UseThumbTarget) |
7198 | gotInst = ThumbDisAsm->getInstruction(Inst, Size, Bytes.slice(Index), |
7199 | PC, DebugOut, Annotations); |
7200 | else |
7201 | gotInst = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index), PC, |
7202 | DebugOut, Annotations); |
7203 | if (gotInst) { |
7204 | if (!NoShowRawInsn || Arch == Triple::arm) { |
7205 | dumpBytes(makeArrayRef(Bytes.data() + Index, Size), outs()); |
7206 | } |
7207 | formatted_raw_ostream FormattedOS(outs()); |
7208 | StringRef AnnotationsStr = Annotations.str(); |
7209 | if (UseThumbTarget) |
7210 | ThumbIP->printInst(&Inst, FormattedOS, AnnotationsStr, *ThumbSTI); |
7211 | else |
7212 | IP->printInst(&Inst, FormattedOS, AnnotationsStr, *STI); |
7213 | emitComments(CommentStream, CommentsToEmit, FormattedOS, *AsmInfo); |
7214 | |
7215 | // Print debug info. |
7216 | if (diContext) { |
7217 | DILineInfo dli = diContext->getLineInfoForAddress(PC); |
7218 | // Print valid line info if it changed. |
7219 | if (dli != lastLine && dli.Line != 0) |
7220 | outs() << "\t## " << dli.FileName << ':' << dli.Line << ':' |
7221 | << dli.Column; |
7222 | lastLine = dli; |
7223 | } |
7224 | outs() << "\n"; |
7225 | } else { |
7226 | unsigned int Arch = MachOOF->getArch(); |
7227 | if (Arch == Triple::x86_64 || Arch == Triple::x86) { |
7228 | outs() << format("\t.byte 0x%02x #bad opcode\n", |
7229 | *(Bytes.data() + Index) & 0xff); |
7230 | Size = 1; // skip exactly one illegible byte and move on. |
7231 | } else if (Arch == Triple::aarch64 || |
7232 | (Arch == Triple::arm && !IsThumb)) { |
7233 | uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | |
7234 | (*(Bytes.data() + Index + 1) & 0xff) << 8 | |
7235 | (*(Bytes.data() + Index + 2) & 0xff) << 16 | |
7236 | (*(Bytes.data() + Index + 3) & 0xff) << 24; |
7237 | outs() << format("\t.long\t0x%08x\n", opcode); |
7238 | Size = 4; |
7239 | } else if (Arch == Triple::arm) { |
7240 | 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\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/llvm-objdump/MachODump.cpp" , 7240, __PRETTY_FUNCTION__)); |
7241 | uint32_t opcode = (*(Bytes.data() + Index) & 0xff) | |
7242 | (*(Bytes.data() + Index + 1) & 0xff) << 8; |
7243 | outs() << format("\t.short\t0x%04x\n", opcode); |
7244 | Size = 2; |
7245 | } else{ |
7246 | errs() << "llvm-objdump: warning: invalid instruction encoding\n"; |
7247 | if (Size == 0) |
7248 | Size = 1; // skip illegible bytes |
7249 | } |
7250 | } |
7251 | } |
7252 | // Now that we are done disassembled the first symbol set the bool that |
7253 | // were doing this to false. |
7254 | FirstSymbol = false; |
7255 | } |
7256 | if (!symbolTableWorked) { |
7257 | // Reading the symbol table didn't work, disassemble the whole section. |
7258 | uint64_t SectAddress = Sections[SectIdx].getAddress(); |
7259 | uint64_t SectSize = Sections[SectIdx].getSize(); |
7260 | uint64_t InstSize; |
7261 | for (uint64_t Index = 0; Index < SectSize; Index += InstSize) { |
7262 | MCInst Inst; |
7263 | |
7264 | uint64_t PC = SectAddress + Index; |
7265 | SmallVector<char, 64> AnnotationsBytes; |
7266 | raw_svector_ostream Annotations(AnnotationsBytes); |
7267 | if (DisAsm->getInstruction(Inst, InstSize, Bytes.slice(Index), PC, |
7268 | DebugOut, Annotations)) { |
7269 | if (!NoLeadingAddr) { |
7270 | if (FullLeadingAddr) { |
7271 | if (MachOOF->is64Bit()) |
7272 | outs() << format("%016" PRIx64"l" "x", PC); |
7273 | else |
7274 | outs() << format("%08" PRIx64"l" "x", PC); |
7275 | } else { |
7276 | outs() << format("%8" PRIx64"l" "x" ":", PC); |
7277 | } |
7278 | } |
7279 | if (!NoShowRawInsn || Arch == Triple::arm) { |
7280 | outs() << "\t"; |
7281 | dumpBytes(makeArrayRef(Bytes.data() + Index, InstSize), outs()); |
7282 | } |
7283 | StringRef AnnotationsStr = Annotations.str(); |
7284 | IP->printInst(&Inst, outs(), AnnotationsStr, *STI); |
7285 | outs() << "\n"; |
7286 | } else { |
7287 | unsigned int Arch = MachOOF->getArch(); |
7288 | if (Arch == Triple::x86_64 || Arch == Triple::x86) { |
7289 | outs() << format("\t.byte 0x%02x #bad opcode\n", |
7290 | *(Bytes.data() + Index) & 0xff); |
7291 | InstSize = 1; // skip exactly one illegible byte and move on. |
7292 | } else { |
7293 | errs() << "llvm-objdump: warning: invalid instruction encoding\n"; |
7294 | if (InstSize == 0) |
7295 | InstSize = 1; // skip illegible bytes |
7296 | } |
7297 | } |
7298 | } |
7299 | } |
7300 | // The TripleName's need to be reset if we are called again for a different |
7301 | // archtecture. |
7302 | TripleName = ""; |
7303 | ThumbTripleName = ""; |
7304 | |
7305 | if (SymbolizerInfo.demangled_name != nullptr) |
7306 | free(SymbolizerInfo.demangled_name); |
7307 | if (ThumbSymbolizerInfo.demangled_name != nullptr) |
7308 | free(ThumbSymbolizerInfo.demangled_name); |
7309 | } |
7310 | } |
7311 | |
7312 | //===----------------------------------------------------------------------===// |
7313 | // __compact_unwind section dumping |
7314 | //===----------------------------------------------------------------------===// |
7315 | |
7316 | namespace { |
7317 | |
7318 | template <typename T> |
7319 | static uint64_t read(StringRef Contents, ptrdiff_t Offset) { |
7320 | using llvm::support::little; |
7321 | using llvm::support::unaligned; |
7322 | |
7323 | if (Offset + sizeof(T) > Contents.size()) { |
7324 | outs() << "warning: attempt to read past end of buffer\n"; |
7325 | return T(); |
7326 | } |
7327 | |
7328 | uint64_t Val = |
7329 | support::endian::read<T, little, unaligned>(Contents.data() + Offset); |
7330 | return Val; |
7331 | } |
7332 | |
7333 | template <typename T> |
7334 | static uint64_t readNext(StringRef Contents, ptrdiff_t &Offset) { |
7335 | T Val = read<T>(Contents, Offset); |
7336 | Offset += sizeof(T); |
7337 | return Val; |
7338 | } |
7339 | |
7340 | struct CompactUnwindEntry { |
7341 | uint32_t OffsetInSection; |
7342 | |
7343 | uint64_t FunctionAddr; |
7344 | uint32_t Length; |
7345 | uint32_t CompactEncoding; |
7346 | uint64_t PersonalityAddr; |
7347 | uint64_t LSDAAddr; |
7348 | |
7349 | RelocationRef FunctionReloc; |
7350 | RelocationRef PersonalityReloc; |
7351 | RelocationRef LSDAReloc; |
7352 | |
7353 | CompactUnwindEntry(StringRef Contents, unsigned Offset, bool Is64) |
7354 | : OffsetInSection(Offset) { |
7355 | if (Is64) |
7356 | read<uint64_t>(Contents, Offset); |
7357 | else |
7358 | read<uint32_t>(Contents, Offset); |
7359 | } |
7360 | |
7361 | private: |
7362 | template <typename UIntPtr> void read(StringRef Contents, ptrdiff_t Offset) { |
7363 | FunctionAddr = readNext<UIntPtr>(Contents, Offset); |
7364 | Length = readNext<uint32_t>(Contents, Offset); |
7365 | CompactEncoding = readNext<uint32_t>(Contents, Offset); |
7366 | PersonalityAddr = readNext<UIntPtr>(Contents, Offset); |
7367 | LSDAAddr = readNext<UIntPtr>(Contents, Offset); |
7368 | } |
7369 | }; |
7370 | } |
7371 | |
7372 | /// Given a relocation from __compact_unwind, consisting of the RelocationRef |
7373 | /// and data being relocated, determine the best base Name and Addend to use for |
7374 | /// display purposes. |
7375 | /// |
7376 | /// 1. An Extern relocation will directly reference a symbol (and the data is |
7377 | /// then already an addend), so use that. |
7378 | /// 2. Otherwise the data is an offset in the object file's layout; try to find |
7379 | // a symbol before it in the same section, and use the offset from there. |
7380 | /// 3. Finally, if all that fails, fall back to an offset from the start of the |
7381 | /// referenced section. |
7382 | static void findUnwindRelocNameAddend(const MachOObjectFile *Obj, |
7383 | std::map<uint64_t, SymbolRef> &Symbols, |
7384 | const RelocationRef &Reloc, uint64_t Addr, |
7385 | StringRef &Name, uint64_t &Addend) { |
7386 | if (Reloc.getSymbol() != Obj->symbol_end()) { |
7387 | Expected<StringRef> NameOrErr = Reloc.getSymbol()->getName(); |
7388 | if (!NameOrErr) |
7389 | report_error(Obj->getFileName(), NameOrErr.takeError()); |
7390 | Name = *NameOrErr; |
7391 | Addend = Addr; |
7392 | return; |
7393 | } |
7394 | |
7395 | auto RE = Obj->getRelocation(Reloc.getRawDataRefImpl()); |
7396 | SectionRef RelocSection = Obj->getAnyRelocationSection(RE); |
7397 | |
7398 | uint64_t SectionAddr = RelocSection.getAddress(); |
7399 | |
7400 | auto Sym = Symbols.upper_bound(Addr); |
7401 | if (Sym == Symbols.begin()) { |
7402 | // The first symbol in the object is after this reference, the best we can |
7403 | // do is section-relative notation. |
7404 | RelocSection.getName(Name); |
7405 | Addend = Addr - SectionAddr; |
7406 | return; |
7407 | } |
7408 | |
7409 | // Go back one so that SymbolAddress <= Addr. |
7410 | --Sym; |
7411 | |
7412 | auto SectOrErr = Sym->second.getSection(); |
7413 | if (!SectOrErr) |
7414 | report_error(Obj->getFileName(), SectOrErr.takeError()); |
7415 | section_iterator SymSection = *SectOrErr; |
7416 | if (RelocSection == *SymSection) { |
7417 | // There's a valid symbol in the same section before this reference. |
7418 | Expected<StringRef> NameOrErr = Sym->second.getName(); |
7419 | if (!NameOrErr) |
7420 | report_error(Obj->getFileName(), NameOrErr.takeError()); |
7421 | Name = *NameOrErr; |
7422 | Addend = Addr - Sym->first; |
7423 | return; |
7424 | } |
7425 | |
7426 | // There is a symbol before this reference, but it's in a different |
7427 | // section. Probably not helpful to mention it, so use the section name. |
7428 | RelocSection.getName(Name); |
7429 | Addend = Addr - SectionAddr; |
7430 | } |
7431 | |
7432 | static void printUnwindRelocDest(const MachOObjectFile *Obj, |
7433 | std::map<uint64_t, SymbolRef> &Symbols, |
7434 | const RelocationRef &Reloc, uint64_t Addr) { |
7435 | StringRef Name; |
7436 | uint64_t Addend; |
7437 | |
7438 | if (!Reloc.getObject()) |
7439 | return; |
7440 | |
7441 | findUnwindRelocNameAddend(Obj, Symbols, Reloc, Addr, Name, Addend); |
7442 | |
7443 | outs() << Name; |
7444 | if (Addend) |
7445 | outs() << " + " << format("0x%" PRIx64"l" "x", Addend); |
7446 | } |
7447 | |
7448 | static void |
7449 | printMachOCompactUnwindSection(const MachOObjectFile *Obj, |
7450 | std::map<uint64_t, SymbolRef> &Symbols, |
7451 | const SectionRef &CompactUnwind) { |
7452 | |
7453 | if (!Obj->isLittleEndian()) { |
7454 | outs() << "Skipping big-endian __compact_unwind section\n"; |
7455 | return; |
7456 | } |
7457 | |
7458 | bool Is64 = Obj->is64Bit(); |
7459 | uint32_t PointerSize = Is64 ? sizeof(uint64_t) : sizeof(uint32_t); |
7460 | uint32_t EntrySize = 3 * PointerSize + 2 * sizeof(uint32_t); |
7461 | |
7462 | StringRef Contents; |
7463 | CompactUnwind.getContents(Contents); |
7464 | |
7465 | SmallVector<CompactUnwindEntry, 4> CompactUnwinds; |
7466 | |
7467 | // First populate the initial raw offsets, encodings and so on from the entry. |
7468 | for (unsigned Offset = 0; Offset < Contents.size(); Offset += EntrySize) { |
7469 | CompactUnwindEntry Entry(Contents, Offset, Is64); |
7470 | CompactUnwinds.push_back(Entry); |
7471 | } |
7472 | |
7473 | // Next we need to look at the relocations to find out what objects are |
7474 | // actually being referred to. |
7475 | for (const RelocationRef &Reloc : CompactUnwind.relocations()) { |
7476 | uint64_t RelocAddress = Reloc.getOffset(); |
7477 | |
7478 | uint32_t EntryIdx = RelocAddress / EntrySize; |
7479 | uint32_t OffsetInEntry = RelocAddress - EntryIdx * EntrySize; |
7480 | CompactUnwindEntry &Entry = CompactUnwinds[EntryIdx]; |
7481 | |
7482 | if (OffsetInEntry == 0) |
7483 | Entry.FunctionReloc = Reloc; |
7484 | else if (OffsetInEntry == PointerSize + 2 * sizeof(uint32_t)) |
7485 | Entry.PersonalityReloc = Reloc; |
7486 | else if (OffsetInEntry == 2 * PointerSize + 2 * sizeof(uint32_t)) |
7487 | Entry.LSDAReloc = Reloc; |
7488 | else { |
7489 | outs() << "Invalid relocation in __compact_unwind section\n"; |
7490 | return; |
7491 | } |
7492 | } |
7493 | |
7494 | // Finally, we're ready to print the data we've gathered. |
7495 | outs() << "Contents of __compact_unwind section:\n"; |
7496 | for (auto &Entry : CompactUnwinds) { |
7497 | outs() << " Entry at offset " |
7498 | << format("0x%" PRIx32"x", Entry.OffsetInSection) << ":\n"; |
7499 | |
7500 | // 1. Start of the region this entry applies to. |
7501 | outs() << " start: " << format("0x%" PRIx64"l" "x", |
7502 | Entry.FunctionAddr) << ' '; |
7503 | printUnwindRelocDest(Obj, Symbols, Entry.FunctionReloc, Entry.FunctionAddr); |
7504 | outs() << '\n'; |
7505 | |
7506 | // 2. Length of the region this entry applies to. |
7507 | outs() << " length: " << format("0x%" PRIx32"x", Entry.Length) |
7508 | << '\n'; |
7509 | // 3. The 32-bit compact encoding. |
7510 | outs() << " compact encoding: " |
7511 | << format("0x%08" PRIx32"x", Entry.CompactEncoding) << '\n'; |
7512 | |
7513 | // 4. The personality function, if present. |
7514 | if (Entry.PersonalityReloc.getObject()) { |
7515 | outs() << " personality function: " |
7516 | << format("0x%" PRIx64"l" "x", Entry.PersonalityAddr) << ' '; |
7517 | printUnwindRelocDest(Obj, Symbols, Entry.PersonalityReloc, |
7518 | Entry.PersonalityAddr); |
7519 | outs() << '\n'; |
7520 | } |
7521 | |
7522 | // 5. This entry's language-specific data area. |
7523 | if (Entry.LSDAReloc.getObject()) { |
7524 | outs() << " LSDA: " << format("0x%" PRIx64"l" "x", |
7525 | Entry.LSDAAddr) << ' '; |
7526 | printUnwindRelocDest(Obj, Symbols, Entry.LSDAReloc, Entry.LSDAAddr); |
7527 | outs() << '\n'; |
7528 | } |
7529 | } |
7530 | } |
7531 | |
7532 | //===----------------------------------------------------------------------===// |
7533 | // __unwind_info section dumping |
7534 | //===----------------------------------------------------------------------===// |
7535 | |
7536 | static void printRegularSecondLevelUnwindPage(StringRef PageData) { |
7537 | ptrdiff_t Pos = 0; |
7538 | uint32_t Kind = readNext<uint32_t>(PageData, Pos); |
7539 | (void)Kind; |
7540 | 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\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/llvm-objdump/MachODump.cpp" , 7540, __PRETTY_FUNCTION__)); |
7541 | |
7542 | uint16_t EntriesStart = readNext<uint16_t>(PageData, Pos); |
7543 | uint16_t NumEntries = readNext<uint16_t>(PageData, Pos); |
7544 | |
7545 | Pos = EntriesStart; |
7546 | for (unsigned i = 0; i < NumEntries; ++i) { |
7547 | uint32_t FunctionOffset = readNext<uint32_t>(PageData, Pos); |
7548 | uint32_t Encoding = readNext<uint32_t>(PageData, Pos); |
7549 | |
7550 | outs() << " [" << i << "]: " |
7551 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
7552 | << ", " |
7553 | << "encoding=" << format("0x%08" PRIx32"x", Encoding) << '\n'; |
7554 | } |
7555 | } |
7556 | |
7557 | static void printCompressedSecondLevelUnwindPage( |
7558 | StringRef PageData, uint32_t FunctionBase, |
7559 | const SmallVectorImpl<uint32_t> &CommonEncodings) { |
7560 | ptrdiff_t Pos = 0; |
7561 | uint32_t Kind = readNext<uint32_t>(PageData, Pos); |
7562 | (void)Kind; |
7563 | 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\"" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/llvm-objdump/MachODump.cpp" , 7563, __PRETTY_FUNCTION__)); |
7564 | |
7565 | uint16_t EntriesStart = readNext<uint16_t>(PageData, Pos); |
7566 | uint16_t NumEntries = readNext<uint16_t>(PageData, Pos); |
7567 | |
7568 | uint16_t EncodingsStart = readNext<uint16_t>(PageData, Pos); |
7569 | readNext<uint16_t>(PageData, Pos); |
7570 | StringRef PageEncodings = PageData.substr(EncodingsStart, StringRef::npos); |
7571 | |
7572 | Pos = EntriesStart; |
7573 | for (unsigned i = 0; i < NumEntries; ++i) { |
7574 | uint32_t Entry = readNext<uint32_t>(PageData, Pos); |
7575 | uint32_t FunctionOffset = FunctionBase + (Entry & 0xffffff); |
7576 | uint32_t EncodingIdx = Entry >> 24; |
7577 | |
7578 | uint32_t Encoding; |
7579 | if (EncodingIdx < CommonEncodings.size()) |
7580 | Encoding = CommonEncodings[EncodingIdx]; |
7581 | else |
7582 | Encoding = read<uint32_t>(PageEncodings, |
7583 | sizeof(uint32_t) * |
7584 | (EncodingIdx - CommonEncodings.size())); |
7585 | |
7586 | outs() << " [" << i << "]: " |
7587 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
7588 | << ", " |
7589 | << "encoding[" << EncodingIdx |
7590 | << "]=" << format("0x%08" PRIx32"x", Encoding) << '\n'; |
7591 | } |
7592 | } |
7593 | |
7594 | static void printMachOUnwindInfoSection(const MachOObjectFile *Obj, |
7595 | std::map<uint64_t, SymbolRef> &Symbols, |
7596 | const SectionRef &UnwindInfo) { |
7597 | |
7598 | if (!Obj->isLittleEndian()) { |
7599 | outs() << "Skipping big-endian __unwind_info section\n"; |
7600 | return; |
7601 | } |
7602 | |
7603 | outs() << "Contents of __unwind_info section:\n"; |
7604 | |
7605 | StringRef Contents; |
7606 | UnwindInfo.getContents(Contents); |
7607 | ptrdiff_t Pos = 0; |
7608 | |
7609 | //===---------------------------------- |
7610 | // Section header |
7611 | //===---------------------------------- |
7612 | |
7613 | uint32_t Version = readNext<uint32_t>(Contents, Pos); |
7614 | outs() << " Version: " |
7615 | << format("0x%" PRIx32"x", Version) << '\n'; |
7616 | if (Version != 1) { |
7617 | outs() << " Skipping section with unknown version\n"; |
7618 | return; |
7619 | } |
7620 | |
7621 | uint32_t CommonEncodingsStart = readNext<uint32_t>(Contents, Pos); |
7622 | outs() << " Common encodings array section offset: " |
7623 | << format("0x%" PRIx32"x", CommonEncodingsStart) << '\n'; |
7624 | uint32_t NumCommonEncodings = readNext<uint32_t>(Contents, Pos); |
7625 | outs() << " Number of common encodings in array: " |
7626 | << format("0x%" PRIx32"x", NumCommonEncodings) << '\n'; |
7627 | |
7628 | uint32_t PersonalitiesStart = readNext<uint32_t>(Contents, Pos); |
7629 | outs() << " Personality function array section offset: " |
7630 | << format("0x%" PRIx32"x", PersonalitiesStart) << '\n'; |
7631 | uint32_t NumPersonalities = readNext<uint32_t>(Contents, Pos); |
7632 | outs() << " Number of personality functions in array: " |
7633 | << format("0x%" PRIx32"x", NumPersonalities) << '\n'; |
7634 | |
7635 | uint32_t IndicesStart = readNext<uint32_t>(Contents, Pos); |
7636 | outs() << " Index array section offset: " |
7637 | << format("0x%" PRIx32"x", IndicesStart) << '\n'; |
7638 | uint32_t NumIndices = readNext<uint32_t>(Contents, Pos); |
7639 | outs() << " Number of indices in array: " |
7640 | << format("0x%" PRIx32"x", NumIndices) << '\n'; |
7641 | |
7642 | //===---------------------------------- |
7643 | // A shared list of common encodings |
7644 | //===---------------------------------- |
7645 | |
7646 | // These occupy indices in the range [0, N] whenever an encoding is referenced |
7647 | // from a compressed 2nd level index table. In practice the linker only |
7648 | // creates ~128 of these, so that indices are available to embed encodings in |
7649 | // the 2nd level index. |
7650 | |
7651 | SmallVector<uint32_t, 64> CommonEncodings; |
7652 | outs() << " Common encodings: (count = " << NumCommonEncodings << ")\n"; |
7653 | Pos = CommonEncodingsStart; |
7654 | for (unsigned i = 0; i < NumCommonEncodings; ++i) { |
7655 | uint32_t Encoding = readNext<uint32_t>(Contents, Pos); |
7656 | CommonEncodings.push_back(Encoding); |
7657 | |
7658 | outs() << " encoding[" << i << "]: " << format("0x%08" PRIx32"x", Encoding) |
7659 | << '\n'; |
7660 | } |
7661 | |
7662 | //===---------------------------------- |
7663 | // Personality functions used in this executable |
7664 | //===---------------------------------- |
7665 | |
7666 | // There should be only a handful of these (one per source language, |
7667 | // roughly). Particularly since they only get 2 bits in the compact encoding. |
7668 | |
7669 | outs() << " Personality functions: (count = " << NumPersonalities << ")\n"; |
7670 | Pos = PersonalitiesStart; |
7671 | for (unsigned i = 0; i < NumPersonalities; ++i) { |
7672 | uint32_t PersonalityFn = readNext<uint32_t>(Contents, Pos); |
7673 | outs() << " personality[" << i + 1 |
7674 | << "]: " << format("0x%08" PRIx32"x", PersonalityFn) << '\n'; |
7675 | } |
7676 | |
7677 | //===---------------------------------- |
7678 | // The level 1 index entries |
7679 | //===---------------------------------- |
7680 | |
7681 | // These specify an approximate place to start searching for the more detailed |
7682 | // information, sorted by PC. |
7683 | |
7684 | struct IndexEntry { |
7685 | uint32_t FunctionOffset; |
7686 | uint32_t SecondLevelPageStart; |
7687 | uint32_t LSDAStart; |
7688 | }; |
7689 | |
7690 | SmallVector<IndexEntry, 4> IndexEntries; |
7691 | |
7692 | outs() << " Top level indices: (count = " << NumIndices << ")\n"; |
7693 | Pos = IndicesStart; |
7694 | for (unsigned i = 0; i < NumIndices; ++i) { |
7695 | IndexEntry Entry; |
7696 | |
7697 | Entry.FunctionOffset = readNext<uint32_t>(Contents, Pos); |
7698 | Entry.SecondLevelPageStart = readNext<uint32_t>(Contents, Pos); |
7699 | Entry.LSDAStart = readNext<uint32_t>(Contents, Pos); |
7700 | IndexEntries.push_back(Entry); |
7701 | |
7702 | outs() << " [" << i << "]: " |
7703 | << "function offset=" << format("0x%08" PRIx32"x", Entry.FunctionOffset) |
7704 | << ", " |
7705 | << "2nd level page offset=" |
7706 | << format("0x%08" PRIx32"x", Entry.SecondLevelPageStart) << ", " |
7707 | << "LSDA offset=" << format("0x%08" PRIx32"x", Entry.LSDAStart) << '\n'; |
7708 | } |
7709 | |
7710 | //===---------------------------------- |
7711 | // Next come the LSDA tables |
7712 | //===---------------------------------- |
7713 | |
7714 | // The LSDA layout is rather implicit: it's a contiguous array of entries from |
7715 | // the first top-level index's LSDAOffset to the last (sentinel). |
7716 | |
7717 | outs() << " LSDA descriptors:\n"; |
7718 | Pos = IndexEntries[0].LSDAStart; |
7719 | const uint32_t LSDASize = 2 * sizeof(uint32_t); |
7720 | int NumLSDAs = |
7721 | (IndexEntries.back().LSDAStart - IndexEntries[0].LSDAStart) / LSDASize; |
7722 | |
7723 | for (int i = 0; i < NumLSDAs; ++i) { |
7724 | uint32_t FunctionOffset = readNext<uint32_t>(Contents, Pos); |
7725 | uint32_t LSDAOffset = readNext<uint32_t>(Contents, Pos); |
7726 | outs() << " [" << i << "]: " |
7727 | << "function offset=" << format("0x%08" PRIx32"x", FunctionOffset) |
7728 | << ", " |
7729 | << "LSDA offset=" << format("0x%08" PRIx32"x", LSDAOffset) << '\n'; |
7730 | } |
7731 | |
7732 | //===---------------------------------- |
7733 | // Finally, the 2nd level indices |
7734 | //===---------------------------------- |
7735 | |
7736 | // Generally these are 4K in size, and have 2 possible forms: |
7737 | // + Regular stores up to 511 entries with disparate encodings |
7738 | // + Compressed stores up to 1021 entries if few enough compact encoding |
7739 | // values are used. |
7740 | outs() << " Second level indices:\n"; |
7741 | for (unsigned i = 0; i < IndexEntries.size() - 1; ++i) { |
7742 | // The final sentinel top-level index has no associated 2nd level page |
7743 | if (IndexEntries[i].SecondLevelPageStart == 0) |
7744 | break; |
7745 | |
7746 | outs() << " Second level index[" << i << "]: " |
7747 | << "offset in section=" |
7748 | << format("0x%08" PRIx32"x", IndexEntries[i].SecondLevelPageStart) |
7749 | << ", " |
7750 | << "base function offset=" |
7751 | << format("0x%08" PRIx32"x", IndexEntries[i].FunctionOffset) << '\n'; |
7752 | |
7753 | Pos = IndexEntries[i].SecondLevelPageStart; |
7754 | if (Pos + sizeof(uint32_t) > Contents.size()) { |
7755 | outs() << "warning: invalid offset for second level page: " << Pos << '\n'; |
7756 | continue; |
7757 | } |
7758 | |
7759 | uint32_t Kind = |
7760 | *reinterpret_cast<const support::ulittle32_t *>(Contents.data() + Pos); |
7761 | if (Kind == 2) |
7762 | printRegularSecondLevelUnwindPage(Contents.substr(Pos, 4096)); |
7763 | else if (Kind == 3) |
7764 | printCompressedSecondLevelUnwindPage(Contents.substr(Pos, 4096), |
7765 | IndexEntries[i].FunctionOffset, |
7766 | CommonEncodings); |
7767 | else |
7768 | outs() << " Skipping 2nd level page with unknown kind " << Kind |
7769 | << '\n'; |
7770 | } |
7771 | } |
7772 | |
7773 | void llvm::printMachOUnwindInfo(const MachOObjectFile *Obj) { |
7774 | std::map<uint64_t, SymbolRef> Symbols; |
7775 | for (const SymbolRef &SymRef : Obj->symbols()) { |
7776 | // Discard any undefined or absolute symbols. They're not going to take part |
7777 | // in the convenience lookup for unwind info and just take up resources. |
7778 | auto SectOrErr = SymRef.getSection(); |
7779 | if (!SectOrErr) { |
7780 | // TODO: Actually report errors helpfully. |
7781 | consumeError(SectOrErr.takeError()); |
7782 | continue; |
7783 | } |
7784 | section_iterator Section = *SectOrErr; |
7785 | if (Section == Obj->section_end()) |
7786 | continue; |
7787 | |
7788 | uint64_t Addr = SymRef.getValue(); |
7789 | Symbols.insert(std::make_pair(Addr, SymRef)); |
7790 | } |
7791 | |
7792 | for (const SectionRef &Section : Obj->sections()) { |
7793 | StringRef SectName; |
7794 | Section.getName(SectName); |
7795 | if (SectName == "__compact_unwind") |
7796 | printMachOCompactUnwindSection(Obj, Symbols, Section); |
7797 | else if (SectName == "__unwind_info") |
7798 | printMachOUnwindInfoSection(Obj, Symbols, Section); |
7799 | } |
7800 | } |
7801 | |
7802 | static void PrintMachHeader(uint32_t magic, uint32_t cputype, |
7803 | uint32_t cpusubtype, uint32_t filetype, |
7804 | uint32_t ncmds, uint32_t sizeofcmds, uint32_t flags, |
7805 | bool verbose) { |
7806 | outs() << "Mach header\n"; |
7807 | outs() << " magic cputype cpusubtype caps filetype ncmds " |
7808 | "sizeofcmds flags\n"; |
7809 | if (verbose) { |
7810 | if (magic == MachO::MH_MAGIC) |
7811 | outs() << " MH_MAGIC"; |
7812 | else if (magic == MachO::MH_MAGIC_64) |
7813 | outs() << "MH_MAGIC_64"; |
7814 | else |
7815 | outs() << format(" 0x%08" PRIx32"x", magic); |
7816 | switch (cputype) { |
7817 | case MachO::CPU_TYPE_I386: |
7818 | outs() << " I386"; |
7819 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7820 | case MachO::CPU_SUBTYPE_I386_ALL: |
7821 | outs() << " ALL"; |
7822 | break; |
7823 | default: |
7824 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7825 | break; |
7826 | } |
7827 | break; |
7828 | case MachO::CPU_TYPE_X86_64: |
7829 | outs() << " X86_64"; |
7830 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7831 | case MachO::CPU_SUBTYPE_X86_64_ALL: |
7832 | outs() << " ALL"; |
7833 | break; |
7834 | case MachO::CPU_SUBTYPE_X86_64_H: |
7835 | outs() << " Haswell"; |
7836 | break; |
7837 | default: |
7838 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7839 | break; |
7840 | } |
7841 | break; |
7842 | case MachO::CPU_TYPE_ARM: |
7843 | outs() << " ARM"; |
7844 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7845 | case MachO::CPU_SUBTYPE_ARM_ALL: |
7846 | outs() << " ALL"; |
7847 | break; |
7848 | case MachO::CPU_SUBTYPE_ARM_V4T: |
7849 | outs() << " V4T"; |
7850 | break; |
7851 | case MachO::CPU_SUBTYPE_ARM_V5TEJ: |
7852 | outs() << " V5TEJ"; |
7853 | break; |
7854 | case MachO::CPU_SUBTYPE_ARM_XSCALE: |
7855 | outs() << " XSCALE"; |
7856 | break; |
7857 | case MachO::CPU_SUBTYPE_ARM_V6: |
7858 | outs() << " V6"; |
7859 | break; |
7860 | case MachO::CPU_SUBTYPE_ARM_V6M: |
7861 | outs() << " V6M"; |
7862 | break; |
7863 | case MachO::CPU_SUBTYPE_ARM_V7: |
7864 | outs() << " V7"; |
7865 | break; |
7866 | case MachO::CPU_SUBTYPE_ARM_V7EM: |
7867 | outs() << " V7EM"; |
7868 | break; |
7869 | case MachO::CPU_SUBTYPE_ARM_V7K: |
7870 | outs() << " V7K"; |
7871 | break; |
7872 | case MachO::CPU_SUBTYPE_ARM_V7M: |
7873 | outs() << " V7M"; |
7874 | break; |
7875 | case MachO::CPU_SUBTYPE_ARM_V7S: |
7876 | outs() << " V7S"; |
7877 | break; |
7878 | default: |
7879 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7880 | break; |
7881 | } |
7882 | break; |
7883 | case MachO::CPU_TYPE_ARM64: |
7884 | outs() << " ARM64"; |
7885 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7886 | case MachO::CPU_SUBTYPE_ARM64_ALL: |
7887 | outs() << " ALL"; |
7888 | break; |
7889 | default: |
7890 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7891 | break; |
7892 | } |
7893 | break; |
7894 | case MachO::CPU_TYPE_POWERPC: |
7895 | outs() << " PPC"; |
7896 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7897 | case MachO::CPU_SUBTYPE_POWERPC_ALL: |
7898 | outs() << " ALL"; |
7899 | break; |
7900 | default: |
7901 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7902 | break; |
7903 | } |
7904 | break; |
7905 | case MachO::CPU_TYPE_POWERPC64: |
7906 | outs() << " PPC64"; |
7907 | switch (cpusubtype & ~MachO::CPU_SUBTYPE_MASK) { |
7908 | case MachO::CPU_SUBTYPE_POWERPC_ALL: |
7909 | outs() << " ALL"; |
7910 | break; |
7911 | default: |
7912 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7913 | break; |
7914 | } |
7915 | break; |
7916 | default: |
7917 | outs() << format(" %7d", cputype); |
7918 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
7919 | break; |
7920 | } |
7921 | if ((cpusubtype & MachO::CPU_SUBTYPE_MASK) == MachO::CPU_SUBTYPE_LIB64) { |
7922 | outs() << " LIB64"; |
7923 | } else { |
7924 | outs() << format(" 0x%02" PRIx32"x", |
7925 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); |
7926 | } |
7927 | switch (filetype) { |
7928 | case MachO::MH_OBJECT: |
7929 | outs() << " OBJECT"; |
7930 | break; |
7931 | case MachO::MH_EXECUTE: |
7932 | outs() << " EXECUTE"; |
7933 | break; |
7934 | case MachO::MH_FVMLIB: |
7935 | outs() << " FVMLIB"; |
7936 | break; |
7937 | case MachO::MH_CORE: |
7938 | outs() << " CORE"; |
7939 | break; |
7940 | case MachO::MH_PRELOAD: |
7941 | outs() << " PRELOAD"; |
7942 | break; |
7943 | case MachO::MH_DYLIB: |
7944 | outs() << " DYLIB"; |
7945 | break; |
7946 | case MachO::MH_DYLIB_STUB: |
7947 | outs() << " DYLIB_STUB"; |
7948 | break; |
7949 | case MachO::MH_DYLINKER: |
7950 | outs() << " DYLINKER"; |
7951 | break; |
7952 | case MachO::MH_BUNDLE: |
7953 | outs() << " BUNDLE"; |
7954 | break; |
7955 | case MachO::MH_DSYM: |
7956 | outs() << " DSYM"; |
7957 | break; |
7958 | case MachO::MH_KEXT_BUNDLE: |
7959 | outs() << " KEXTBUNDLE"; |
7960 | break; |
7961 | default: |
7962 | outs() << format(" %10u", filetype); |
7963 | break; |
7964 | } |
7965 | outs() << format(" %5u", ncmds); |
7966 | outs() << format(" %10u", sizeofcmds); |
7967 | uint32_t f = flags; |
7968 | if (f & MachO::MH_NOUNDEFS) { |
7969 | outs() << " NOUNDEFS"; |
7970 | f &= ~MachO::MH_NOUNDEFS; |
7971 | } |
7972 | if (f & MachO::MH_INCRLINK) { |
7973 | outs() << " INCRLINK"; |
7974 | f &= ~MachO::MH_INCRLINK; |
7975 | } |
7976 | if (f & MachO::MH_DYLDLINK) { |
7977 | outs() << " DYLDLINK"; |
7978 | f &= ~MachO::MH_DYLDLINK; |
7979 | } |
7980 | if (f & MachO::MH_BINDATLOAD) { |
7981 | outs() << " BINDATLOAD"; |
7982 | f &= ~MachO::MH_BINDATLOAD; |
7983 | } |
7984 | if (f & MachO::MH_PREBOUND) { |
7985 | outs() << " PREBOUND"; |
7986 | f &= ~MachO::MH_PREBOUND; |
7987 | } |
7988 | if (f & MachO::MH_SPLIT_SEGS) { |
7989 | outs() << " SPLIT_SEGS"; |
7990 | f &= ~MachO::MH_SPLIT_SEGS; |
7991 | } |
7992 | if (f & MachO::MH_LAZY_INIT) { |
7993 | outs() << " LAZY_INIT"; |
7994 | f &= ~MachO::MH_LAZY_INIT; |
7995 | } |
7996 | if (f & MachO::MH_TWOLEVEL) { |
7997 | outs() << " TWOLEVEL"; |
7998 | f &= ~MachO::MH_TWOLEVEL; |
7999 | } |
8000 | if (f & MachO::MH_FORCE_FLAT) { |
8001 | outs() << " FORCE_FLAT"; |
8002 | f &= ~MachO::MH_FORCE_FLAT; |
8003 | } |
8004 | if (f & MachO::MH_NOMULTIDEFS) { |
8005 | outs() << " NOMULTIDEFS"; |
8006 | f &= ~MachO::MH_NOMULTIDEFS; |
8007 | } |
8008 | if (f & MachO::MH_NOFIXPREBINDING) { |
8009 | outs() << " NOFIXPREBINDING"; |
8010 | f &= ~MachO::MH_NOFIXPREBINDING; |
8011 | } |
8012 | if (f & MachO::MH_PREBINDABLE) { |
8013 | outs() << " PREBINDABLE"; |
8014 | f &= ~MachO::MH_PREBINDABLE; |
8015 | } |
8016 | if (f & MachO::MH_ALLMODSBOUND) { |
8017 | outs() << " ALLMODSBOUND"; |
8018 | f &= ~MachO::MH_ALLMODSBOUND; |
8019 | } |
8020 | if (f & MachO::MH_SUBSECTIONS_VIA_SYMBOLS) { |
8021 | outs() << " SUBSECTIONS_VIA_SYMBOLS"; |
8022 | f &= ~MachO::MH_SUBSECTIONS_VIA_SYMBOLS; |
8023 | } |
8024 | if (f & MachO::MH_CANONICAL) { |
8025 | outs() << " CANONICAL"; |
8026 | f &= ~MachO::MH_CANONICAL; |
8027 | } |
8028 | if (f & MachO::MH_WEAK_DEFINES) { |
8029 | outs() << " WEAK_DEFINES"; |
8030 | f &= ~MachO::MH_WEAK_DEFINES; |
8031 | } |
8032 | if (f & MachO::MH_BINDS_TO_WEAK) { |
8033 | outs() << " BINDS_TO_WEAK"; |
8034 | f &= ~MachO::MH_BINDS_TO_WEAK; |
8035 | } |
8036 | if (f & MachO::MH_ALLOW_STACK_EXECUTION) { |
8037 | outs() << " ALLOW_STACK_EXECUTION"; |
8038 | f &= ~MachO::MH_ALLOW_STACK_EXECUTION; |
8039 | } |
8040 | if (f & MachO::MH_DEAD_STRIPPABLE_DYLIB) { |
8041 | outs() << " DEAD_STRIPPABLE_DYLIB"; |
8042 | f &= ~MachO::MH_DEAD_STRIPPABLE_DYLIB; |
8043 | } |
8044 | if (f & MachO::MH_PIE) { |
8045 | outs() << " PIE"; |
8046 | f &= ~MachO::MH_PIE; |
8047 | } |
8048 | if (f & MachO::MH_NO_REEXPORTED_DYLIBS) { |
8049 | outs() << " NO_REEXPORTED_DYLIBS"; |
8050 | f &= ~MachO::MH_NO_REEXPORTED_DYLIBS; |
8051 | } |
8052 | if (f & MachO::MH_HAS_TLV_DESCRIPTORS) { |
8053 | outs() << " MH_HAS_TLV_DESCRIPTORS"; |
8054 | f &= ~MachO::MH_HAS_TLV_DESCRIPTORS; |
8055 | } |
8056 | if (f & MachO::MH_NO_HEAP_EXECUTION) { |
8057 | outs() << " MH_NO_HEAP_EXECUTION"; |
8058 | f &= ~MachO::MH_NO_HEAP_EXECUTION; |
8059 | } |
8060 | if (f & MachO::MH_APP_EXTENSION_SAFE) { |
8061 | outs() << " APP_EXTENSION_SAFE"; |
8062 | f &= ~MachO::MH_APP_EXTENSION_SAFE; |
8063 | } |
8064 | if (f & MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO) { |
8065 | outs() << " NLIST_OUTOFSYNC_WITH_DYLDINFO"; |
8066 | f &= ~MachO::MH_NLIST_OUTOFSYNC_WITH_DYLDINFO; |
8067 | } |
8068 | if (f != 0 || flags == 0) |
8069 | outs() << format(" 0x%08" PRIx32"x", f); |
8070 | } else { |
8071 | outs() << format(" 0x%08" PRIx32"x", magic); |
8072 | outs() << format(" %7d", cputype); |
8073 | outs() << format(" %10d", cpusubtype & ~MachO::CPU_SUBTYPE_MASK); |
8074 | outs() << format(" 0x%02" PRIx32"x", |
8075 | (cpusubtype & MachO::CPU_SUBTYPE_MASK) >> 24); |
8076 | outs() << format(" %10u", filetype); |
8077 | outs() << format(" %5u", ncmds); |
8078 | outs() << format(" %10u", sizeofcmds); |
8079 | outs() << format(" 0x%08" PRIx32"x", flags); |
8080 | } |
8081 | outs() << "\n"; |
8082 | } |
8083 | |
8084 | static void PrintSegmentCommand(uint32_t cmd, uint32_t cmdsize, |
8085 | StringRef SegName, uint64_t vmaddr, |
8086 | uint64_t vmsize, uint64_t fileoff, |
8087 | uint64_t filesize, uint32_t maxprot, |
8088 | uint32_t initprot, uint32_t nsects, |
8089 | uint32_t flags, uint32_t object_size, |
8090 | bool verbose) { |
8091 | uint64_t expected_cmdsize; |
8092 | if (cmd == MachO::LC_SEGMENT) { |
8093 | outs() << " cmd LC_SEGMENT\n"; |
8094 | expected_cmdsize = nsects; |
8095 | expected_cmdsize *= sizeof(struct MachO::section); |
8096 | expected_cmdsize += sizeof(struct MachO::segment_command); |
8097 | } else { |
8098 | outs() << " cmd LC_SEGMENT_64\n"; |
8099 | expected_cmdsize = nsects; |
8100 | expected_cmdsize *= sizeof(struct MachO::section_64); |
8101 | expected_cmdsize += sizeof(struct MachO::segment_command_64); |
8102 | } |
8103 | outs() << " cmdsize " << cmdsize; |
8104 | if (cmdsize != expected_cmdsize) |
8105 | outs() << " Inconsistent size\n"; |
8106 | else |
8107 | outs() << "\n"; |
8108 | outs() << " segname " << SegName << "\n"; |
8109 | if (cmd == MachO::LC_SEGMENT_64) { |
8110 | outs() << " vmaddr " << format("0x%016" PRIx64"l" "x", vmaddr) << "\n"; |
8111 | outs() << " vmsize " << format("0x%016" PRIx64"l" "x", vmsize) << "\n"; |
8112 | } else { |
8113 | outs() << " vmaddr " << format("0x%08" PRIx64"l" "x", vmaddr) << "\n"; |
8114 | outs() << " vmsize " << format("0x%08" PRIx64"l" "x", vmsize) << "\n"; |
8115 | } |
8116 | outs() << " fileoff " << fileoff; |
8117 | if (fileoff > object_size) |
8118 | outs() << " (past end of file)\n"; |
8119 | else |
8120 | outs() << "\n"; |
8121 | outs() << " filesize " << filesize; |
8122 | if (fileoff + filesize > object_size) |
8123 | outs() << " (past end of file)\n"; |
8124 | else |
8125 | outs() << "\n"; |
8126 | if (verbose) { |
8127 | if ((maxprot & |
8128 | ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | |
8129 | MachO::VM_PROT_EXECUTE)) != 0) |
8130 | outs() << " maxprot ?" << format("0x%08" PRIx32"x", maxprot) << "\n"; |
8131 | else { |
8132 | outs() << " maxprot "; |
8133 | outs() << ((maxprot & MachO::VM_PROT_READ) ? "r" : "-"); |
8134 | outs() << ((maxprot & MachO::VM_PROT_WRITE) ? "w" : "-"); |
8135 | outs() << ((maxprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); |
8136 | } |
8137 | if ((initprot & |
8138 | ~(MachO::VM_PROT_READ | MachO::VM_PROT_WRITE | |
8139 | MachO::VM_PROT_EXECUTE)) != 0) |
8140 | outs() << " initprot ?" << format("0x%08" PRIx32"x", initprot) << "\n"; |
8141 | else { |
8142 | outs() << " initprot "; |
8143 | outs() << ((initprot & MachO::VM_PROT_READ) ? "r" : "-"); |
8144 | outs() << ((initprot & MachO::VM_PROT_WRITE) ? "w" : "-"); |
8145 | outs() << ((initprot & MachO::VM_PROT_EXECUTE) ? "x\n" : "-\n"); |
8146 | } |
8147 | } else { |
8148 | outs() << " maxprot " << format("0x%08" PRIx32"x", maxprot) << "\n"; |
8149 | outs() << " initprot " << format("0x%08" PRIx32"x", initprot) << "\n"; |
8150 | } |
8151 | outs() << " nsects " << nsects << "\n"; |
8152 | if (verbose) { |
8153 | outs() << " flags"; |
8154 | if (flags == 0) |
8155 | outs() << " (none)\n"; |
8156 | else { |
8157 | if (flags & MachO::SG_HIGHVM) { |
8158 | outs() << " HIGHVM"; |
8159 | flags &= ~MachO::SG_HIGHVM; |
8160 | } |
8161 | if (flags & MachO::SG_FVMLIB) { |
8162 | outs() << " FVMLIB"; |
8163 | flags &= ~MachO::SG_FVMLIB; |
8164 | } |
8165 | if (flags & MachO::SG_NORELOC) { |
8166 | outs() << " NORELOC"; |
8167 | flags &= ~MachO::SG_NORELOC; |
8168 | } |
8169 | if (flags & MachO::SG_PROTECTED_VERSION_1) { |
8170 | outs() << " PROTECTED_VERSION_1"; |
8171 | flags &= ~MachO::SG_PROTECTED_VERSION_1; |
8172 | } |
8173 | if (flags) |
8174 | outs() << format(" 0x%08" PRIx32"x", flags) << " (unknown flags)\n"; |
8175 | else |
8176 | outs() << "\n"; |
8177 | } |
8178 | } else { |
8179 | outs() << " flags " << format("0x%" PRIx32"x", flags) << "\n"; |
8180 | } |
8181 | } |
8182 | |
8183 | static void PrintSection(const char *sectname, const char *segname, |
8184 | uint64_t addr, uint64_t size, uint32_t offset, |
8185 | uint32_t align, uint32_t reloff, uint32_t nreloc, |
8186 | uint32_t flags, uint32_t reserved1, uint32_t reserved2, |
8187 | uint32_t cmd, const char *sg_segname, |
8188 | uint32_t filetype, uint32_t object_size, |
8189 | bool verbose) { |
8190 | outs() << "Section\n"; |
8191 | outs() << " sectname " << format("%.16s\n", sectname); |
8192 | outs() << " segname " << format("%.16s", segname); |
8193 | if (filetype != MachO::MH_OBJECT && strncmp(sg_segname, segname, 16) != 0) |
8194 | outs() << " (does not match segment)\n"; |
8195 | else |
8196 | outs() << "\n"; |
8197 | if (cmd == MachO::LC_SEGMENT_64) { |
8198 | outs() << " addr " << format("0x%016" PRIx64"l" "x", addr) << "\n"; |
8199 | outs() << " size " << format("0x%016" PRIx64"l" "x", size); |
8200 | } else { |
8201 | outs() << " addr " << format("0x%08" PRIx64"l" "x", addr) << "\n"; |
8202 | outs() << " size " << format("0x%08" PRIx64"l" "x", size); |
8203 | } |
8204 | if ((flags & MachO::S_ZEROFILL) != 0 && offset + size > object_size) |
8205 | outs() << " (past end of file)\n"; |
8206 | else |
8207 | outs() << "\n"; |
8208 | outs() << " offset " << offset; |
8209 | if (offset > object_size) |
8210 | outs() << " (past end of file)\n"; |
8211 | else |
8212 | outs() << "\n"; |
8213 | uint32_t align_shifted = 1 << align; |
8214 | outs() << " align 2^" << align << " (" << align_shifted << ")\n"; |
8215 | outs() << " reloff " << reloff; |
8216 | if (reloff > object_size) |
8217 | outs() << " (past end of file)\n"; |
8218 | else |
8219 | outs() << "\n"; |
8220 | outs() << " nreloc " << nreloc; |
8221 | if (reloff + nreloc * sizeof(struct MachO::relocation_info) > object_size) |
8222 | outs() << " (past end of file)\n"; |
8223 | else |
8224 | outs() << "\n"; |
8225 | uint32_t section_type = flags & MachO::SECTION_TYPE; |
8226 | if (verbose) { |
8227 | outs() << " type"; |
8228 | if (section_type == MachO::S_REGULAR) |
8229 | outs() << " S_REGULAR\n"; |
8230 | else if (section_type == MachO::S_ZEROFILL) |
8231 | outs() << " S_ZEROFILL\n"; |
8232 | else if (section_type == MachO::S_CSTRING_LITERALS) |
8233 | outs() << " S_CSTRING_LITERALS\n"; |
8234 | else if (section_type == MachO::S_4BYTE_LITERALS) |
8235 | outs() << " S_4BYTE_LITERALS\n"; |
8236 | else if (section_type == MachO::S_8BYTE_LITERALS) |
8237 | outs() << " S_8BYTE_LITERALS\n"; |
8238 | else if (section_type == MachO::S_16BYTE_LITERALS) |
8239 | outs() << " S_16BYTE_LITERALS\n"; |
8240 | else if (section_type == MachO::S_LITERAL_POINTERS) |
8241 | outs() << " S_LITERAL_POINTERS\n"; |
8242 | else if (section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS) |
8243 | outs() << " S_NON_LAZY_SYMBOL_POINTERS\n"; |
8244 | else if (section_type == MachO::S_LAZY_SYMBOL_POINTERS) |
8245 | outs() << " S_LAZY_SYMBOL_POINTERS\n"; |
8246 | else if (section_type == MachO::S_SYMBOL_STUBS) |
8247 | outs() << " S_SYMBOL_STUBS\n"; |
8248 | else if (section_type == MachO::S_MOD_INIT_FUNC_POINTERS) |
8249 | outs() << " S_MOD_INIT_FUNC_POINTERS\n"; |
8250 | else if (section_type == MachO::S_MOD_TERM_FUNC_POINTERS) |
8251 | outs() << " S_MOD_TERM_FUNC_POINTERS\n"; |
8252 | else if (section_type == MachO::S_COALESCED) |
8253 | outs() << " S_COALESCED\n"; |
8254 | else if (section_type == MachO::S_INTERPOSING) |
8255 | outs() << " S_INTERPOSING\n"; |
8256 | else if (section_type == MachO::S_DTRACE_DOF) |
8257 | outs() << " S_DTRACE_DOF\n"; |
8258 | else if (section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS) |
8259 | outs() << " S_LAZY_DYLIB_SYMBOL_POINTERS\n"; |
8260 | else if (section_type == MachO::S_THREAD_LOCAL_REGULAR) |
8261 | outs() << " S_THREAD_LOCAL_REGULAR\n"; |
8262 | else if (section_type == MachO::S_THREAD_LOCAL_ZEROFILL) |
8263 | outs() << " S_THREAD_LOCAL_ZEROFILL\n"; |
8264 | else if (section_type == MachO::S_THREAD_LOCAL_VARIABLES) |
8265 | outs() << " S_THREAD_LOCAL_VARIABLES\n"; |
8266 | else if (section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) |
8267 | outs() << " S_THREAD_LOCAL_VARIABLE_POINTERS\n"; |
8268 | else if (section_type == MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS) |
8269 | outs() << " S_THREAD_LOCAL_INIT_FUNCTION_POINTERS\n"; |
8270 | else |
8271 | outs() << format("0x%08" PRIx32"x", section_type) << "\n"; |
8272 | outs() << "attributes"; |
8273 | uint32_t section_attributes = flags & MachO::SECTION_ATTRIBUTES; |
8274 | if (section_attributes & MachO::S_ATTR_PURE_INSTRUCTIONS) |
8275 | outs() << " PURE_INSTRUCTIONS"; |
8276 | if (section_attributes & MachO::S_ATTR_NO_TOC) |
8277 | outs() << " NO_TOC"; |
8278 | if (section_attributes & MachO::S_ATTR_STRIP_STATIC_SYMS) |
8279 | outs() << " STRIP_STATIC_SYMS"; |
8280 | if (section_attributes & MachO::S_ATTR_NO_DEAD_STRIP) |
8281 | outs() << " NO_DEAD_STRIP"; |
8282 | if (section_attributes & MachO::S_ATTR_LIVE_SUPPORT) |
8283 | outs() << " LIVE_SUPPORT"; |
8284 | if (section_attributes & MachO::S_ATTR_SELF_MODIFYING_CODE) |
8285 | outs() << " SELF_MODIFYING_CODE"; |
8286 | if (section_attributes & MachO::S_ATTR_DEBUG) |
8287 | outs() << " DEBUG"; |
8288 | if (section_attributes & MachO::S_ATTR_SOME_INSTRUCTIONS) |
8289 | outs() << " SOME_INSTRUCTIONS"; |
8290 | if (section_attributes & MachO::S_ATTR_EXT_RELOC) |
8291 | outs() << " EXT_RELOC"; |
8292 | if (section_attributes & MachO::S_ATTR_LOC_RELOC) |
8293 | outs() << " LOC_RELOC"; |
8294 | if (section_attributes == 0) |
8295 | outs() << " (none)"; |
8296 | outs() << "\n"; |
8297 | } else |
8298 | outs() << " flags " << format("0x%08" PRIx32"x", flags) << "\n"; |
8299 | outs() << " reserved1 " << reserved1; |
8300 | if (section_type == MachO::S_SYMBOL_STUBS || |
8301 | section_type == MachO::S_LAZY_SYMBOL_POINTERS || |
8302 | section_type == MachO::S_LAZY_DYLIB_SYMBOL_POINTERS || |
8303 | section_type == MachO::S_NON_LAZY_SYMBOL_POINTERS || |
8304 | section_type == MachO::S_THREAD_LOCAL_VARIABLE_POINTERS) |
8305 | outs() << " (index into indirect symbol table)\n"; |
8306 | else |
8307 | outs() << "\n"; |
8308 | outs() << " reserved2 " << reserved2; |
8309 | if (section_type == MachO::S_SYMBOL_STUBS) |
8310 | outs() << " (size of stubs)\n"; |
8311 | else |
8312 | outs() << "\n"; |
8313 | } |
8314 | |
8315 | static void PrintSymtabLoadCommand(MachO::symtab_command st, bool Is64Bit, |
8316 | uint32_t object_size) { |
8317 | outs() << " cmd LC_SYMTAB\n"; |
8318 | outs() << " cmdsize " << st.cmdsize; |
8319 | if (st.cmdsize != sizeof(struct MachO::symtab_command)) |
8320 | outs() << " Incorrect size\n"; |
8321 | else |
8322 | outs() << "\n"; |
8323 | outs() << " symoff " << st.symoff; |
8324 | if (st.symoff > object_size) |
8325 | outs() << " (past end of file)\n"; |
8326 | else |
8327 | outs() << "\n"; |
8328 | outs() << " nsyms " << st.nsyms; |
8329 | uint64_t big_size; |
8330 | if (Is64Bit) { |
8331 | big_size = st.nsyms; |
8332 | big_size *= sizeof(struct MachO::nlist_64); |
8333 | big_size += st.symoff; |
8334 | if (big_size > object_size) |
8335 | outs() << " (past end of file)\n"; |
8336 | else |
8337 | outs() << "\n"; |
8338 | } else { |
8339 | big_size = st.nsyms; |
8340 | big_size *= sizeof(struct MachO::nlist); |
8341 | big_size += st.symoff; |
8342 | if (big_size > object_size) |
8343 | outs() << " (past end of file)\n"; |
8344 | else |
8345 | outs() << "\n"; |
8346 | } |
8347 | outs() << " stroff " << st.stroff; |
8348 | if (st.stroff > object_size) |
8349 | outs() << " (past end of file)\n"; |
8350 | else |
8351 | outs() << "\n"; |
8352 | outs() << " strsize " << st.strsize; |
8353 | big_size = st.stroff; |
8354 | big_size += st.strsize; |
8355 | if (big_size > object_size) |
8356 | outs() << " (past end of file)\n"; |
8357 | else |
8358 | outs() << "\n"; |
8359 | } |
8360 | |
8361 | static void PrintDysymtabLoadCommand(MachO::dysymtab_command dyst, |
8362 | uint32_t nsyms, uint32_t object_size, |
8363 | bool Is64Bit) { |
8364 | outs() << " cmd LC_DYSYMTAB\n"; |
8365 | outs() << " cmdsize " << dyst.cmdsize; |
8366 | if (dyst.cmdsize != sizeof(struct MachO::dysymtab_command)) |
8367 | outs() << " Incorrect size\n"; |
8368 | else |
8369 | outs() << "\n"; |
8370 | outs() << " ilocalsym " << dyst.ilocalsym; |
8371 | if (dyst.ilocalsym > nsyms) |
8372 | outs() << " (greater than the number of symbols)\n"; |
8373 | else |
8374 | outs() << "\n"; |
8375 | outs() << " nlocalsym " << dyst.nlocalsym; |
8376 | uint64_t big_size; |
8377 | big_size = dyst.ilocalsym; |
8378 | big_size += dyst.nlocalsym; |
8379 | if (big_size > nsyms) |
8380 | outs() << " (past the end of the symbol table)\n"; |
8381 | else |
8382 | outs() << "\n"; |
8383 | outs() << " iextdefsym " << dyst.iextdefsym; |
8384 | if (dyst.iextdefsym > nsyms) |
8385 | outs() << " (greater than the number of symbols)\n"; |
8386 | else |
8387 | outs() << "\n"; |
8388 | outs() << " nextdefsym " << dyst.nextdefsym; |
8389 | big_size = dyst.iextdefsym; |
8390 | big_size += dyst.nextdefsym; |
8391 | if (big_size > nsyms) |
8392 | outs() << " (past the end of the symbol table)\n"; |
8393 | else |
8394 | outs() << "\n"; |
8395 | outs() << " iundefsym " << dyst.iundefsym; |
8396 | if (dyst.iundefsym > nsyms) |
8397 | outs() << " (greater than the number of symbols)\n"; |
8398 | else |
8399 | outs() << "\n"; |
8400 | outs() << " nundefsym " << dyst.nundefsym; |
8401 | big_size = dyst.iundefsym; |
8402 | big_size += dyst.nundefsym; |
8403 | if (big_size > nsyms) |
8404 | outs() << " (past the end of the symbol table)\n"; |
8405 | else |
8406 | outs() << "\n"; |
8407 | outs() << " tocoff " << dyst.tocoff; |
8408 | if (dyst.tocoff > object_size) |
8409 | outs() << " (past end of file)\n"; |
8410 | else |
8411 | outs() << "\n"; |
8412 | outs() << " ntoc " << dyst.ntoc; |
8413 | big_size = dyst.ntoc; |
8414 | big_size *= sizeof(struct MachO::dylib_table_of_contents); |
8415 | big_size += dyst.tocoff; |
8416 | if (big_size > object_size) |
8417 | outs() << " (past end of file)\n"; |
8418 | else |
8419 | outs() << "\n"; |
8420 | outs() << " modtaboff " << dyst.modtaboff; |
8421 | if (dyst.modtaboff > object_size) |
8422 | outs() << " (past end of file)\n"; |
8423 | else |
8424 | outs() << "\n"; |
8425 | outs() << " nmodtab " << dyst.nmodtab; |
8426 | uint64_t modtabend; |
8427 | if (Is64Bit) { |
8428 | modtabend = dyst.nmodtab; |
8429 | modtabend *= sizeof(struct MachO::dylib_module_64); |
8430 | modtabend += dyst.modtaboff; |
8431 | } else { |
8432 | modtabend = dyst.nmodtab; |
8433 | modtabend *= sizeof(struct MachO::dylib_module); |
8434 | modtabend += dyst.modtaboff; |
8435 | } |
8436 | if (modtabend > object_size) |
8437 | outs() << " (past end of file)\n"; |
8438 | else |
8439 | outs() << "\n"; |
8440 | outs() << " extrefsymoff " << dyst.extrefsymoff; |
8441 | if (dyst.extrefsymoff > object_size) |
8442 | outs() << " (past end of file)\n"; |
8443 | else |
8444 | outs() << "\n"; |
8445 | outs() << " nextrefsyms " << dyst.nextrefsyms; |
8446 | big_size = dyst.nextrefsyms; |
8447 | big_size *= sizeof(struct MachO::dylib_reference); |
8448 | big_size += dyst.extrefsymoff; |
8449 | if (big_size > object_size) |
8450 | outs() << " (past end of file)\n"; |
8451 | else |
8452 | outs() << "\n"; |
8453 | outs() << " indirectsymoff " << dyst.indirectsymoff; |
8454 | if (dyst.indirectsymoff > object_size) |
8455 | outs() << " (past end of file)\n"; |
8456 | else |
8457 | outs() << "\n"; |
8458 | outs() << " nindirectsyms " << dyst.nindirectsyms; |
8459 | big_size = dyst.nindirectsyms; |
8460 | big_size *= sizeof(uint32_t); |
8461 | big_size += dyst.indirectsymoff; |
8462 | if (big_size > object_size) |
8463 | outs() << " (past end of file)\n"; |
8464 | else |
8465 | outs() << "\n"; |
8466 | outs() << " extreloff " << dyst.extreloff; |
8467 | if (dyst.extreloff > object_size) |
8468 | outs() << " (past end of file)\n"; |
8469 | else |
8470 | outs() << "\n"; |
8471 | outs() << " nextrel " << dyst.nextrel; |
8472 | big_size = dyst.nextrel; |
8473 | big_size *= sizeof(struct MachO::relocation_info); |
8474 | big_size += dyst.extreloff; |
8475 | if (big_size > object_size) |
8476 | outs() << " (past end of file)\n"; |
8477 | else |
8478 | outs() << "\n"; |
8479 | outs() << " locreloff " << dyst.locreloff; |
8480 | if (dyst.locreloff > object_size) |
8481 | outs() << " (past end of file)\n"; |
8482 | else |
8483 | outs() << "\n"; |
8484 | outs() << " nlocrel " << dyst.nlocrel; |
8485 | big_size = dyst.nlocrel; |
8486 | big_size *= sizeof(struct MachO::relocation_info); |
8487 | big_size += dyst.locreloff; |
8488 | if (big_size > object_size) |
8489 | outs() << " (past end of file)\n"; |
8490 | else |
8491 | outs() << "\n"; |
8492 | } |
8493 | |
8494 | static void PrintDyldInfoLoadCommand(MachO::dyld_info_command dc, |
8495 | uint32_t object_size) { |
8496 | if (dc.cmd == MachO::LC_DYLD_INFO) |
8497 | outs() << " cmd LC_DYLD_INFO\n"; |
8498 | else |
8499 | outs() << " cmd LC_DYLD_INFO_ONLY\n"; |
8500 | outs() << " cmdsize " << dc.cmdsize; |
8501 | if (dc.cmdsize != sizeof(struct MachO::dyld_info_command)) |
8502 | outs() << " Incorrect size\n"; |
8503 | else |
8504 | outs() << "\n"; |
8505 | outs() << " rebase_off " << dc.rebase_off; |
8506 | if (dc.rebase_off > object_size) |
8507 | outs() << " (past end of file)\n"; |
8508 | else |
8509 | outs() << "\n"; |
8510 | outs() << " rebase_size " << dc.rebase_size; |
8511 | uint64_t big_size; |
8512 | big_size = dc.rebase_off; |
8513 | big_size += dc.rebase_size; |
8514 | if (big_size > object_size) |
8515 | outs() << " (past end of file)\n"; |
8516 | else |
8517 | outs() << "\n"; |
8518 | outs() << " bind_off " << dc.bind_off; |
8519 | if (dc.bind_off > object_size) |
8520 | outs() << " (past end of file)\n"; |
8521 | else |
8522 | outs() << "\n"; |
8523 | outs() << " bind_size " << dc.bind_size; |
8524 | big_size = dc.bind_off; |
8525 | big_size += dc.bind_size; |
8526 | if (big_size > object_size) |
8527 | outs() << " (past end of file)\n"; |
8528 | else |
8529 | outs() << "\n"; |
8530 | outs() << " weak_bind_off " << dc.weak_bind_off; |
8531 | if (dc.weak_bind_off > object_size) |
8532 | outs() << " (past end of file)\n"; |
8533 | else |
8534 | outs() << "\n"; |
8535 | outs() << " weak_bind_size " << dc.weak_bind_size; |
8536 | big_size = dc.weak_bind_off; |
8537 | big_size += dc.weak_bind_size; |
8538 | if (big_size > object_size) |
8539 | outs() << " (past end of file)\n"; |
8540 | else |
8541 | outs() << "\n"; |
8542 | outs() << " lazy_bind_off " << dc.lazy_bind_off; |
8543 | if (dc.lazy_bind_off > object_size) |
8544 | outs() << " (past end of file)\n"; |
8545 | else |
8546 | outs() << "\n"; |
8547 | outs() << " lazy_bind_size " << dc.lazy_bind_size; |
8548 | big_size = dc.lazy_bind_off; |
8549 | big_size += dc.lazy_bind_size; |
8550 | if (big_size > object_size) |
8551 | outs() << " (past end of file)\n"; |
8552 | else |
8553 | outs() << "\n"; |
8554 | outs() << " export_off " << dc.export_off; |
8555 | if (dc.export_off > object_size) |
8556 | outs() << " (past end of file)\n"; |
8557 | else |
8558 | outs() << "\n"; |
8559 | outs() << " export_size " << dc.export_size; |
8560 | big_size = dc.export_off; |
8561 | big_size += dc.export_size; |
8562 | if (big_size > object_size) |
8563 | outs() << " (past end of file)\n"; |
8564 | else |
8565 | outs() << "\n"; |
8566 | } |
8567 | |
8568 | static void PrintDyldLoadCommand(MachO::dylinker_command dyld, |
8569 | const char *Ptr) { |
8570 | if (dyld.cmd == MachO::LC_ID_DYLINKER) |
8571 | outs() << " cmd LC_ID_DYLINKER\n"; |
8572 | else if (dyld.cmd == MachO::LC_LOAD_DYLINKER) |
8573 | outs() << " cmd LC_LOAD_DYLINKER\n"; |
8574 | else if (dyld.cmd == MachO::LC_DYLD_ENVIRONMENT) |
8575 | outs() << " cmd LC_DYLD_ENVIRONMENT\n"; |
8576 | else |
8577 | outs() << " cmd ?(" << dyld.cmd << ")\n"; |
8578 | outs() << " cmdsize " << dyld.cmdsize; |
8579 | if (dyld.cmdsize < sizeof(struct MachO::dylinker_command)) |
8580 | outs() << " Incorrect size\n"; |
8581 | else |
8582 | outs() << "\n"; |
8583 | if (dyld.name >= dyld.cmdsize) |
8584 | outs() << " name ?(bad offset " << dyld.name << ")\n"; |
8585 | else { |
8586 | const char *P = (const char *)(Ptr) + dyld.name; |
8587 | outs() << " name " << P << " (offset " << dyld.name << ")\n"; |
8588 | } |
8589 | } |
8590 | |
8591 | static void PrintUuidLoadCommand(MachO::uuid_command uuid) { |
8592 | outs() << " cmd LC_UUID\n"; |
8593 | outs() << " cmdsize " << uuid.cmdsize; |
8594 | if (uuid.cmdsize != sizeof(struct MachO::uuid_command)) |
8595 | outs() << " Incorrect size\n"; |
8596 | else |
8597 | outs() << "\n"; |
8598 | outs() << " uuid "; |
8599 | for (int i = 0; i < 16; ++i) { |
8600 | outs() << format("%02" PRIX32"X", uuid.uuid[i]); |
8601 | if (i == 3 || i == 5 || i == 7 || i == 9) |
8602 | outs() << "-"; |
8603 | } |
8604 | outs() << "\n"; |
8605 | } |
8606 | |
8607 | static void PrintRpathLoadCommand(MachO::rpath_command rpath, const char *Ptr) { |
8608 | outs() << " cmd LC_RPATH\n"; |
8609 | outs() << " cmdsize " << rpath.cmdsize; |
8610 | if (rpath.cmdsize < sizeof(struct MachO::rpath_command)) |
8611 | outs() << " Incorrect size\n"; |
8612 | else |
8613 | outs() << "\n"; |
8614 | if (rpath.path >= rpath.cmdsize) |
8615 | outs() << " path ?(bad offset " << rpath.path << ")\n"; |
8616 | else { |
8617 | const char *P = (const char *)(Ptr) + rpath.path; |
8618 | outs() << " path " << P << " (offset " << rpath.path << ")\n"; |
8619 | } |
8620 | } |
8621 | |
8622 | static void PrintVersionMinLoadCommand(MachO::version_min_command vd) { |
8623 | StringRef LoadCmdName; |
8624 | switch (vd.cmd) { |
8625 | case MachO::LC_VERSION_MIN_MACOSX: |
8626 | LoadCmdName = "LC_VERSION_MIN_MACOSX"; |
8627 | break; |
8628 | case MachO::LC_VERSION_MIN_IPHONEOS: |
8629 | LoadCmdName = "LC_VERSION_MIN_IPHONEOS"; |
8630 | break; |
8631 | case MachO::LC_VERSION_MIN_TVOS: |
8632 | LoadCmdName = "LC_VERSION_MIN_TVOS"; |
8633 | break; |
8634 | case MachO::LC_VERSION_MIN_WATCHOS: |
8635 | LoadCmdName = "LC_VERSION_MIN_WATCHOS"; |
8636 | break; |
8637 | default: |
8638 | llvm_unreachable("Unknown version min load command")::llvm::llvm_unreachable_internal("Unknown version min load command" , "/build/llvm-toolchain-snapshot-8~svn345461/tools/llvm-objdump/MachODump.cpp" , 8638); |
8639 | } |
8640 | |
8641 | outs() << " cmd " << LoadCmdName << '\n'; |
8642 | outs() << " cmdsize " << vd.cmdsize; |
8643 | if (vd.cmdsize != sizeof(struct MachO::version_min_command)) |
8644 | outs() << " Incorrect size\n"; |
8645 | else |
8646 | outs() << "\n"; |
8647 | outs() << " version " |
8648 | << MachOObjectFile::getVersionMinMajor(vd, false) << "." |
8649 | << MachOObjectFile::getVersionMinMinor(vd, false); |
8650 | uint32_t Update = MachOObjectFile::getVersionMinUpdate(vd, false); |
8651 | if (Update != 0) |
8652 | outs() << "." << Update; |
8653 | outs() << "\n"; |
8654 | if (vd.sdk == 0) |
8655 | outs() << " sdk n/a"; |
8656 | else { |
8657 | outs() << " sdk " |
8658 | << MachOObjectFile::getVersionMinMajor(vd, true) << "." |
8659 | << MachOObjectFile::getVersionMinMinor(vd, true); |
8660 | } |
8661 | Update = MachOObjectFile::getVersionMinUpdate(vd, true); |
8662 | if (Update != 0) |
8663 | outs() << "." << Update; |
8664 | outs() << "\n"; |
8665 | } |
8666 | |
8667 | static void PrintNoteLoadCommand(MachO::note_command Nt) { |
8668 | outs() << " cmd LC_NOTE\n"; |
8669 | outs() << " cmdsize " << Nt.cmdsize; |
8670 | if (Nt.cmdsize != sizeof(struct MachO::note_command)) |
8671 | outs() << " Incorrect size\n"; |
8672 | else |
8673 | outs() << "\n"; |
8674 | const char *d = Nt.data_owner; |
8675 | outs() << "data_owner " << format("%.16s\n", d); |
8676 | outs() << " offset " << Nt.offset << "\n"; |
8677 | outs() << " size " << Nt.size << "\n"; |
8678 | } |
8679 | |
8680 | static void PrintBuildToolVersion(MachO::build_tool_version bv) { |
8681 | outs() << " tool " << MachOObjectFile::getBuildTool(bv.tool) << "\n"; |
8682 | outs() << " version " << MachOObjectFile::getVersionString(bv.version) |
8683 | << "\n"; |
8684 | } |
8685 | |
8686 | static void PrintBuildVersionLoadCommand(const MachOObjectFile *obj, |
8687 | MachO::build_version_command bd) { |
8688 | outs() << " cmd LC_BUILD_VERSION\n"; |
8689 | outs() << " cmdsize " << bd.cmdsize; |
8690 | if (bd.cmdsize != |
8691 | sizeof(struct MachO::build_version_command) + |
8692 | bd.ntools * sizeof(struct MachO::build_tool_version)) |
8693 | outs() << " Incorrect size\n"; |
8694 | else |
8695 | outs() << "\n"; |
8696 | outs() << " platform " << MachOObjectFile::getBuildPlatform(bd.platform) |
8697 | << "\n"; |
8698 | if (bd.sdk) |
8699 | outs() << " sdk " << MachOObjectFile::getVersionString(bd.sdk) |
8700 | << "\n"; |
8701 | else |
8702 | outs() << " sdk n/a\n"; |
8703 | outs() << " minos " << MachOObjectFile::getVersionString(bd.minos) |
8704 | << "\n"; |
8705 | outs() << " ntools " << bd.ntools << "\n"; |
8706 | for (unsigned i = 0; i < bd.ntools; ++i) { |
8707 | MachO::build_tool_version bv = obj->getBuildToolVersion(i); |
8708 | PrintBuildToolVersion(bv); |
8709 | } |
8710 | } |
8711 | |
8712 | static void PrintSourceVersionCommand(MachO::source_version_command sd) { |
8713 | outs() << " cmd LC_SOURCE_VERSION\n"; |
8714 | outs() << " cmdsize " << sd.cmdsize; |
8715 | if (sd.cmdsize != sizeof(struct MachO::source_version_command)) |
8716 | outs() << " Incorrect size\n"; |
8717 | else |
8718 | outs() << "\n"; |
8719 | uint64_t a = (sd.version >> 40) & 0xffffff; |
8720 | uint64_t b = (sd.version >> 30) & 0x3ff; |
8721 | uint64_t c = (sd.version >> 20) & 0x3ff; |
8722 | uint64_t d = (sd.version >> 10) & 0x3ff; |
8723 | uint64_t e = sd.version & 0x3ff; |
8724 | outs() << " version " << a << "." << b; |
8725 | if (e != 0) |
8726 | outs() << "." << c << "." << d << "." << e; |
8727 | else if (d != 0) |
8728 | outs() << "." << c << "." << d; |
8729 | else if (c != 0) |
8730 | outs() << "." << c; |
8731 | outs() << "\n"; |
8732 | } |
8733 | |
8734 | static void PrintEntryPointCommand(MachO::entry_point_command ep) { |
8735 | outs() << " cmd LC_MAIN\n"; |
8736 | outs() << " cmdsize " << ep.cmdsize; |
8737 | if (ep.cmdsize != sizeof(struct MachO::entry_point_command)) |
8738 | outs() << " Incorrect size\n"; |
8739 | else |
8740 | outs() << "\n"; |
8741 | outs() << " entryoff " << ep.entryoff << "\n"; |
8742 | outs() << " stacksize " << ep.stacksize << "\n"; |
8743 | } |
8744 | |
8745 | static void PrintEncryptionInfoCommand(MachO::encryption_info_command ec, |
8746 | uint32_t object_size) { |
8747 | outs() << " cmd LC_ENCRYPTION_INFO\n"; |
8748 | outs() << " cmdsize " << ec.cmdsize; |
8749 | if (ec.cmdsize != sizeof(struct MachO::encryption_info_command)) |
8750 | outs() << " Incorrect size\n"; |
8751 | else |
8752 | outs() << "\n"; |
8753 | outs() << " cryptoff " << ec.cryptoff; |
8754 | if (ec.cryptoff > object_size) |
8755 | outs() << " (past end of file)\n"; |
8756 | else |
8757 | outs() << "\n"; |
8758 | outs() << " cryptsize " << ec.cryptsize; |
8759 | if (ec.cryptsize > object_size) |
8760 | outs() << " (past end of file)\n"; |
8761 | else |
8762 | outs() << "\n"; |
8763 | outs() << " cryptid " << ec.cryptid << "\n"; |
8764 | } |
8765 | |
8766 | static void PrintEncryptionInfoCommand64(MachO::encryption_info_command_64 ec, |
8767 | uint32_t object_size) { |
8768 | outs() << " cmd LC_ENCRYPTION_INFO_64\n"; |
8769 | outs() << " cmdsize " << ec.cmdsize; |
8770 | if (ec.cmdsize != sizeof(struct MachO::encryption_info_command_64)) |
8771 | outs() << " Incorrect size\n"; |
8772 | else |
8773 | outs() << "\n"; |
8774 | outs() << " cryptoff " << ec.cryptoff; |
8775 | if (ec.cryptoff > object_size) |
8776 | outs() << " (past end of file)\n"; |
8777 | else |
8778 | outs() << "\n"; |
8779 | outs() << " cryptsize " << ec.cryptsize; |
8780 | if (ec.cryptsize > object_size) |
8781 | outs() << " (past end of file)\n"; |
8782 | else |
8783 | outs() << "\n"; |
8784 | outs() << " cryptid " << ec.cryptid << "\n"; |
8785 | outs() << " pad " << ec.pad << "\n"; |
8786 | } |
8787 | |
8788 | static void PrintLinkerOptionCommand(MachO::linker_option_command lo, |
8789 | const char *Ptr) { |
8790 | outs() << " cmd LC_LINKER_OPTION\n"; |
8791 | outs() << " cmdsize " << lo.cmdsize; |
8792 | if (lo.cmdsize < sizeof(struct MachO::linker_option_command)) |
8793 | outs() << " Incorrect size\n"; |
8794 | else |
8795 | outs() << "\n"; |
8796 | outs() << " count " << lo.count << "\n"; |
8797 | const char *string = Ptr + sizeof(struct MachO::linker_option_command); |
8798 | uint32_t left = lo.cmdsize - sizeof(struct MachO::linker_option_command); |
8799 | uint32_t i = 0; |
8800 | while (left > 0) { |
8801 | while (*string == '\0' && left > 0) { |
8802 | string++; |
8803 | left--; |
8804 | } |
8805 | if (left > 0) { |
8806 | i++; |
8807 | outs() << " string #" << i << " " << format("%.*s\n", left, string); |
8808 | uint32_t NullPos = StringRef(string, left).find('\0'); |
8809 | uint32_t len = std::min(NullPos, left) + 1; |
8810 | string += len; |
8811 | left -= len; |
8812 | } |
8813 | } |
8814 | if (lo.count != i) |
8815 | outs() << " count " << lo.count << " does not match number of strings " |
8816 | << i << "\n"; |
8817 | } |
8818 | |
8819 | static void PrintSubFrameworkCommand(MachO::sub_framework_command sub, |
8820 | const char *Ptr) { |
8821 | outs() << " cmd LC_SUB_FRAMEWORK\n"; |
8822 | outs() << " cmdsize " << sub.cmdsize; |
8823 | if (sub.cmdsize < sizeof(struct MachO::sub_framework_command)) |
8824 | outs() << " Incorrect size\n"; |
8825 | else |
8826 | outs() << "\n"; |
8827 | if (sub.umbrella < sub.cmdsize) { |
8828 | const char *P = Ptr + sub.umbrella; |
8829 | outs() << " umbrella " << P << " (offset " << sub.umbrella << ")\n"; |
8830 | } else { |
8831 | outs() << " umbrella ?(bad offset " << sub.umbrella << ")\n"; |
8832 | } |
8833 | } |
8834 | |
8835 | static void PrintSubUmbrellaCommand(MachO::sub_umbrella_command sub, |
8836 | const char *Ptr) { |
8837 | outs() << " cmd LC_SUB_UMBRELLA\n"; |
8838 | outs() << " cmdsize " << sub.cmdsize; |
8839 | if (sub.cmdsize < sizeof(struct MachO::sub_umbrella_command)) |
8840 | outs() << " Incorrect size\n"; |
8841 | else |
8842 | outs() << "\n"; |
8843 | if (sub.sub_umbrella < sub.cmdsize) { |
8844 | const char *P = Ptr + sub.sub_umbrella; |
8845 | outs() << " sub_umbrella " << P << " (offset " << sub.sub_umbrella << ")\n"; |
8846 | } else { |
8847 | outs() << " sub_umbrella ?(bad offset " << sub.sub_umbrella << ")\n"; |
8848 | } |
8849 | } |
8850 | |
8851 | static void PrintSubLibraryCommand(MachO::sub_library_command sub, |
8852 | const char *Ptr) { |
8853 | outs() << " cmd LC_SUB_LIBRARY\n"; |
8854 | outs() << " cmdsize " << sub.cmdsize; |
8855 | if (sub.cmdsize < sizeof(struct MachO::sub_library_command)) |
8856 | outs() << " Incorrect size\n"; |
8857 | else |
8858 | outs() << "\n"; |
8859 | if (sub.sub_library < sub.cmdsize) { |
8860 | const char *P = Ptr + sub.sub_library; |
8861 | outs() << " sub_library " << P << " (offset " << sub.sub_library << ")\n"; |
8862 | } else { |
8863 | outs() << " sub_library ?(bad offset " << sub.sub_library << ")\n"; |
8864 | } |
8865 | } |
8866 | |
8867 | static void PrintSubClientCommand(MachO::sub_client_command sub, |
8868 | const char *Ptr) { |
8869 | outs() << " cmd LC_SUB_CLIENT\n"; |
8870 | outs() << " cmdsize " << sub.cmdsize; |
8871 | if (sub.cmdsize < sizeof(struct MachO::sub_client_command)) |
8872 | outs() << " Incorrect size\n"; |
8873 | else |
8874 | outs() << "\n"; |
8875 | if (sub.client < sub.cmdsize) { |
8876 | const char *P = Ptr + sub.client; |
8877 | outs() << " client " << P << " (offset " << sub.client << ")\n"; |
8878 | } else { |
8879 | outs() << " client ?(bad offset " << sub.client << ")\n"; |
8880 | } |
8881 | } |
8882 | |
8883 | static void PrintRoutinesCommand(MachO::routines_command r) { |
8884 | outs() << " cmd LC_ROUTINES\n"; |
8885 | outs() << " cmdsize " << r.cmdsize; |
8886 | if (r.cmdsize != sizeof(struct MachO::routines_command)) |
8887 | outs() << " Incorrect size\n"; |
8888 | else |
8889 | outs() << "\n"; |
8890 | outs() << " init_address " << format("0x%08" PRIx32"x", r.init_address) << "\n"; |
8891 | outs() << " init_module " << r.init_module << "\n"; |
8892 | outs() << " reserved1 " << r.reserved1 << "\n"; |
8893 | outs() << " reserved2 " << r.reserved2 << "\n"; |
8894 | outs() << " reserved3 " << r.reserved3 << "\n"; |
8895 | outs() << " reserved4 " << r.reserved4 << "\n"; |
8896 | outs() << " reserved5 " << r.reserved5 << "\n"; |
8897 | outs() << " reserved6 " << r.reserved6 << "\n"; |
8898 | } |
8899 | |
8900 | static void PrintRoutinesCommand64(MachO::routines_command_64 r) { |
8901 | outs() << " cmd LC_ROUTINES_64\n"; |
8902 | outs() << " cmdsize " << r.cmdsize; |
8903 | if (r.cmdsize != sizeof(struct MachO::routines_command_64)) |
8904 | outs() << " Incorrect size\n"; |
8905 | else |
8906 | outs() << "\n"; |
8907 | outs() << " init_address " << format("0x%016" PRIx64"l" "x", r.init_address) << "\n"; |
8908 | outs() << " init_module " << r.init_module << "\n"; |
8909 | outs() << " reserved1 " << r.reserved1 << "\n"; |
8910 | outs() << " reserved2 " << r.reserved2 << "\n"; |
8911 | outs() << " reserved3 " << r.reserved3 << "\n"; |
8912 | outs() << " reserved4 " << r.reserved4 << "\n"; |
8913 | outs() << " reserved5 " << r.reserved5 << "\n"; |
8914 | outs() << " reserved6 " << r.reserved6 << "\n"; |
8915 | } |
8916 | |
8917 | static void Print_x86_thread_state32_t(MachO::x86_thread_state32_t &cpu32) { |
8918 | outs() << "\t eax " << format("0x%08" PRIx32"x", cpu32.eax); |
8919 | outs() << " ebx " << format("0x%08" PRIx32"x", cpu32.ebx); |
8920 | outs() << " ecx " << format("0x%08" PRIx32"x", cpu32.ecx); |
8921 | outs() << " edx " << format("0x%08" PRIx32"x", cpu32.edx) << "\n"; |
8922 | outs() << "\t edi " << format("0x%08" PRIx32"x", cpu32.edi); |
8923 | outs() << " esi " << format("0x%08" PRIx32"x", cpu32.esi); |
8924 | outs() << " ebp " << format("0x%08" PRIx32"x", cpu32.ebp); |
8925 | outs() << " esp " << format("0x%08" PRIx32"x", cpu32.esp) << "\n"; |
8926 | outs() << "\t ss " << format("0x%08" PRIx32"x", cpu32.ss); |
8927 | outs() << " eflags " << format("0x%08" PRIx32"x", cpu32.eflags); |
8928 | outs() << " eip " << format("0x%08" PRIx32"x", cpu32.eip); |
8929 | outs() << " cs " << format("0x%08" PRIx32"x", cpu32.cs) << "\n"; |
8930 | outs() << "\t ds " << format("0x%08" PRIx32"x", cpu32.ds); |
8931 | outs() << " es " << format("0x%08" PRIx32"x", cpu32.es); |
8932 | outs() << " fs " << format("0x%08" PRIx32"x", cpu32.fs); |
8933 | outs() << " gs " << format("0x%08" PRIx32"x", cpu32.gs) << "\n"; |
8934 | } |
8935 | |
8936 | static void Print_x86_thread_state64_t(MachO::x86_thread_state64_t &cpu64) { |
8937 | outs() << " rax " << format("0x%016" PRIx64"l" "x", cpu64.rax); |
8938 | outs() << " rbx " << format("0x%016" PRIx64"l" "x", cpu64.rbx); |
8939 | outs() << " rcx " << format("0x%016" PRIx64"l" "x", cpu64.rcx) << "\n"; |
8940 | outs() << " rdx " << format("0x%016" PRIx64"l" "x", cpu64.rdx); |
8941 | outs() << " rdi " << format("0x%016" PRIx64"l" "x", cpu64.rdi); |
8942 | outs() << " rsi " << format("0x%016" PRIx64"l" "x", cpu64.rsi) << "\n"; |
8943 | outs() << " rbp " << format("0x%016" PRIx64"l" "x", cpu64.rbp); |
8944 | outs() << " rsp " << format("0x%016" PRIx64"l" "x", cpu64.rsp); |
8945 | outs() << " r8 " << format("0x%016" PRIx64"l" "x", cpu64.r8) << "\n"; |
8946 | outs() << " r9 " << format("0x%016" PRIx64"l" "x", cpu64.r9); |
8947 | outs() << " r10 " << format("0x%016" PRIx64"l" "x", cpu64.r10); |
8948 | outs() << " r11 " << format("0x%016" PRIx64"l" "x", cpu64.r11) << "\n"; |
8949 | outs() << " r12 " << format("0x%016" PRIx64"l" "x", cpu64.r12); |
8950 | outs() << " r13 " << format("0x%016" PRIx64"l" "x", cpu64.r13); |
8951 | outs() << " r14 " << format("0x%016" PRIx64"l" "x", cpu64.r14) << "\n"; |
8952 | outs() << " r15 " << format("0x%016" PRIx64"l" "x", cpu64.r15); |
8953 | outs() << " rip " << format("0x%016" PRIx64"l" "x", cpu64.rip) << "\n"; |
8954 | outs() << "rflags " << format("0x%016" PRIx64"l" "x", cpu64.rflags); |
8955 | outs() << " cs " << format("0x%016" PRIx64"l" "x", cpu64.cs); |
8956 | outs() << " fs " << format("0x%016" PRIx64"l" "x", cpu64.fs) << "\n"; |
8957 | outs() << " gs " << format("0x%016" PRIx64"l" "x", cpu64.gs) << "\n"; |
8958 | } |
8959 | |
8960 | static void Print_mmst_reg(MachO::mmst_reg_t &r) { |
8961 | uint32_t f; |
8962 | outs() << "\t mmst_reg "; |
8963 | for (f = 0; f < 10; f++) |
8964 | outs() << format("%02" PRIx32"x", (r.mmst_reg[f] & 0xff)) << " "; |
8965 | outs() << "\n"; |
8966 | outs() << "\t mmst_rsrv "; |
8967 | for (f = 0; f < 6; f++) |
8968 | outs() << format("%02" PRIx32"x", (r.mmst_rsrv[f] & 0xff)) << " "; |
8969 | outs() << "\n"; |
8970 | } |
8971 | |
8972 | static void Print_xmm_reg(MachO::xmm_reg_t &r) { |
8973 | uint32_t f; |
8974 | outs() << "\t xmm_reg "; |
8975 | for (f = 0; f < 16; f++) |
8976 | outs() << format("%02" PRIx32"x", (r.xmm_reg[f] & 0xff)) << " "; |
8977 | outs() << "\n"; |
8978 | } |
8979 | |
8980 | static void Print_x86_float_state_t(MachO::x86_float_state64_t &fpu) { |
8981 | outs() << "\t fpu_reserved[0] " << fpu.fpu_reserved[0]; |
8982 | outs() << " fpu_reserved[1] " << fpu.fpu_reserved[1] << "\n"; |
8983 | outs() << "\t control: invalid " << fpu.fpu_fcw.invalid; |
8984 | outs() << " denorm " << fpu.fpu_fcw.denorm; |
8985 | outs() << " zdiv " << fpu.fpu_fcw.zdiv; |
8986 | outs() << " ovrfl " << fpu.fpu_fcw.ovrfl; |
8987 | outs() << " undfl " << fpu.fpu_fcw.undfl; |
8988 | outs() << " precis " << fpu.fpu_fcw.precis << "\n"; |
8989 | outs() << "\t\t pc "; |
8990 | if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_24B) |
8991 | outs() << "FP_PREC_24B "; |
8992 | else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_53B) |
8993 | outs() << "FP_PREC_53B "; |
8994 | else if (fpu.fpu_fcw.pc == MachO::x86_FP_PREC_64B) |
8995 | outs() << "FP_PREC_64B "; |
8996 | else |
8997 | outs() << fpu.fpu_fcw.pc << " "; |
8998 | outs() << "rc "; |
8999 | if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_NEAR) |
9000 | outs() << "FP_RND_NEAR "; |
9001 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_DOWN) |
9002 | outs() << "FP_RND_DOWN "; |
9003 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_RND_UP) |
9004 | outs() << "FP_RND_UP "; |
9005 | else if (fpu.fpu_fcw.rc == MachO::x86_FP_CHOP) |
9006 | outs() << "FP_CHOP "; |
9007 | outs() << "\n"; |
9008 | outs() << "\t status: invalid " << fpu.fpu_fsw.invalid; |
9009 | outs() << " denorm " << fpu.fpu_fsw.denorm; |
9010 | outs() << " zdiv " << fpu.fpu_fsw.zdiv; |
9011 | outs() << " ovrfl " << fpu.fpu_fsw.ovrfl; |
9012 | outs() << " undfl " << fpu.fpu_fsw.undfl; |
9013 | outs() << " precis " << fpu.fpu_fsw.precis; |
9014 | outs() << " stkflt " << fpu.fpu_fsw.stkflt << "\n"; |
9015 | outs() << "\t errsumm " << fpu.fpu_fsw.errsumm; |
9016 | outs() << " c0 " << fpu.fpu_fsw.c0; |
9017 | outs() << " c1 " << fpu.fpu_fsw.c1; |
9018 | outs() << " c2 " << fpu.fpu_fsw.c2; |
9019 | outs() << " tos " << fpu.fpu_fsw.tos; |
9020 | outs() << " c3 " << fpu.fpu_fsw.c3; |
9021 | outs() << " busy " << fpu.fpu_fsw.busy << "\n"; |
9022 | outs() << "\t fpu_ftw " << format("0x%02" PRIx32"x", fpu.fpu_ftw); |
9023 | outs() << " fpu_rsrv1 " << format("0x%02" PRIx32"x", fpu.fpu_rsrv1); |
9024 | outs() << " fpu_fop " << format("0x%04" PRIx32"x", fpu.fpu_fop); |
9025 | outs() << " fpu_ip " << format("0x%08" PRIx32"x", fpu.fpu_ip) << "\n"; |
9026 | outs() << "\t fpu_cs " << format("0x%04" PRIx32"x", fpu.fpu_cs); |
9027 | outs() << " fpu_rsrv2 " << format("0x%04" PRIx32"x", fpu.fpu_rsrv2); |
9028 | outs() << " fpu_dp " << format("0x%08" PRIx32"x", fpu.fpu_dp); |
9029 | outs() << " fpu_ds " << format("0x%04" PRIx32"x", fpu.fpu_ds) << "\n"; |
9030 | outs() << "\t fpu_rsrv3 " << format("0x%04" PRIx32"x", fpu.fpu_rsrv3); |
9031 | outs() << " fpu_mxcsr " << format("0x%08" PRIx32"x", fpu.fpu_mxcsr); |
9032 | outs() << " fpu_mxcsrmask " << format("0x%08" PRIx32"x", fpu.fpu_mxcsrmask); |
9033 | outs() << "\n"; |
9034 | outs() << "\t fpu_stmm0:\n"; |
9035 | Print_mmst_reg(fpu.fpu_stmm0); |
9036 | outs() << "\t fpu_stmm1:\n"; |
9037 | Print_mmst_reg(fpu.fpu_stmm1); |
9038 | outs() << "\t fpu_stmm2:\n"; |
9039 | Print_mmst_reg(fpu.fpu_stmm2); |
9040 | outs() << "\t fpu_stmm3:\n"; |
9041 | Print_mmst_reg(fpu.fpu_stmm3); |
9042 | outs() << "\t fpu_stmm4:\n"; |
9043 | Print_mmst_reg(fpu.fpu_stmm4); |
9044 | outs() << "\t fpu_stmm5:\n"; |
9045 | Print_mmst_reg(fpu.fpu_stmm5); |
9046 | outs() << "\t fpu_stmm6:\n"; |
9047 | Print_mmst_reg(fpu.fpu_stmm6); |
9048 | outs() << "\t fpu_stmm7:\n"; |
9049 | Print_mmst_reg(fpu.fpu_stmm7); |
9050 | outs() << "\t fpu_xmm0:\n"; |
9051 | Print_xmm_reg(fpu.fpu_xmm0); |
9052 | outs() << "\t fpu_xmm1:\n"; |
9053 | Print_xmm_reg(fpu.fpu_xmm1); |
9054 | outs() << "\t fpu_xmm2:\n"; |
9055 | Print_xmm_reg(fpu.fpu_xmm2); |
9056 | outs() << "\t fpu_xmm3:\n"; |
9057 | Print_xmm_reg(fpu.fpu_xmm3); |
9058 | outs() << "\t fpu_xmm4:\n"; |
9059 | Print_xmm_reg(fpu.fpu_xmm4); |
9060 | outs() << "\t fpu_xmm5:\n"; |
9061 | Print_xmm_reg(fpu.fpu_xmm5); |
9062 | outs() << "\t fpu_xmm6:\n"; |
9063 | Print_xmm_reg(fpu.fpu_xmm6); |
9064 | outs() << "\t fpu_xmm7:\n"; |
9065 | Print_xmm_reg(fpu.fpu_xmm7); |
9066 | outs() << "\t fpu_xmm8:\n"; |
9067 | Print_xmm_reg(fpu.fpu_xmm8); |
9068 | outs() << "\t fpu_xmm9:\n"; |
9069 | Print_xmm_reg(fpu.fpu_xmm9); |
9070 | outs() << "\t fpu_xmm10:\n"; |
9071 | Print_xmm_reg(fpu.fpu_xmm10); |
9072 | outs() << "\t fpu_xmm11:\n"; |
9073 | Print_xmm_reg(fpu.fpu_xmm11); |
9074 | outs() << "\t fpu_xmm12:\n"; |
9075 | Print_xmm_reg(fpu.fpu_xmm12); |
9076 | outs() << "\t fpu_xmm13:\n"; |
9077 | Print_xmm_reg(fpu.fpu_xmm13); |
9078 | outs() << "\t fpu_xmm14:\n"; |
9079 | Print_xmm_reg(fpu.fpu_xmm14); |
9080 | outs() << "\t fpu_xmm15:\n"; |
9081 | Print_xmm_reg(fpu.fpu_xmm15); |
9082 | outs() << "\t fpu_rsrv4:\n"; |
9083 | for (uint32_t f = 0; f < 6; f++) { |
9084 | outs() << "\t "; |
9085 | for (uint32_t g = 0; g < 16; g++) |
9086 | outs() << format("%02" PRIx32"x", fpu.fpu_rsrv4[f * g]) << " "; |
9087 | outs() << "\n"; |
9088 | } |
9089 | outs() << "\t fpu_reserved1 " << format("0x%08" PRIx32"x", fpu.fpu_reserved1); |
9090 | outs() << "\n"; |
9091 | } |
9092 | |
9093 | static void Print_x86_exception_state_t(MachO::x86_exception_state64_t &exc64) { |
9094 | outs() << "\t trapno " << format("0x%08" PRIx32"x", exc64.trapno); |
9095 | outs() << " err " << format("0x%08" PRIx32"x", exc64.err); |
9096 | outs() << " faultvaddr " << format("0x%016" PRIx64"l" "x", exc64.faultvaddr) << "\n"; |
9097 | } |
9098 | |
9099 | static void Print_arm_thread_state32_t(MachO::arm_thread_state32_t &cpu32) { |
9100 | outs() << "\t r0 " << format("0x%08" PRIx32"x", cpu32.r[0]); |
9101 | outs() << " r1 " << format("0x%08" PRIx32"x", cpu32.r[1]); |
9102 | outs() << " r2 " << format("0x%08" PRIx32"x", cpu32.r[2]); |
9103 | outs() << " r3 " << format("0x%08" PRIx32"x", cpu32.r[3]) << "\n"; |
9104 | outs() << "\t r4 " << format("0x%08" PRIx32"x", cpu32.r[4]); |
9105 | outs() << " r5 " << format("0x%08" PRIx32"x", cpu32.r[5]); |
9106 | outs() << " r6 " << format("0x%08" PRIx32"x", cpu32.r[6]); |
9107 | outs() << " r7 " << format("0x%08" PRIx32"x", cpu32.r[7]) << "\n"; |
9108 | outs() << "\t r8 " << format("0x%08" PRIx32"x", cpu32.r[8]); |
9109 | outs() << " r9 " << format("0x%08" PRIx32"x", cpu32.r[9]); |
9110 | outs() << " r10 " << format("0x%08" PRIx32"x", cpu32.r[10]); |
9111 | outs() << " r11 " << format("0x%08" PRIx32"x", cpu32.r[11]) << "\n"; |
9112 | outs() << "\t r12 " << format("0x%08" PRIx32"x", cpu32.r[12]); |
9113 | outs() << " sp " << format("0x%08" PRIx32"x", cpu32.sp); |
9114 | outs() << " lr " << format("0x%08" PRIx32"x", cpu32.lr); |
9115 | outs() << " pc " << format("0x%08" PRIx32"x", cpu32.pc) << "\n"; |
9116 | outs() << "\t cpsr " << format("0x%08" PRIx32"x", cpu32.cpsr) << "\n"; |
9117 | } |
9118 | |
9119 | static void Print_arm_thread_state64_t(MachO::arm_thread_state64_t &cpu64) { |
9120 | outs() << "\t x0 " << format("0x%016" PRIx64"l" "x", cpu64.x[0]); |
9121 | outs() << " x1 " << format("0x%016" PRIx64"l" "x", cpu64.x[1]); |
9122 | outs() << " x2 " << format("0x%016" PRIx64"l" "x", cpu64.x[2]) << "\n"; |
9123 | outs() << "\t x3 " << format("0x%016" PRIx64"l" "x", cpu64.x[3]); |
9124 | outs() << " x4 " << format("0x%016" PRIx64"l" "x", cpu64.x[4]); |
9125 | outs() << " x5 " << format("0x%016" PRIx64"l" "x", cpu64.x[5]) << "\n"; |
9126 | outs() << "\t x6 " << format("0x%016" PRIx64"l" "x", cpu64.x[6]); |
9127 | outs() << " x7 " << format("0x%016" PRIx64"l" "x", cpu64.x[7]); |
9128 | outs() << " x8 " << format("0x%016" PRIx64"l" "x", cpu64.x[8]) << "\n"; |
9129 | outs() << "\t x9 " << format("0x%016" PRIx64"l" "x", cpu64.x[9]); |
9130 | outs() << " x10 " << format("0x%016" PRIx64"l" "x", cpu64.x[10]); |
9131 | outs() << " x11 " << format("0x%016" PRIx64"l" "x", cpu64.x[11]) << "\n"; |
9132 | outs() << "\t x12 " << format("0x%016" PRIx64"l" "x", cpu64.x[12]); |
9133 | outs() << " x13 " << format("0x%016" PRIx64"l" "x", cpu64.x[13]); |
9134 | outs() << " x14 " << format("0x%016" PRIx64"l" "x", cpu64.x[14]) << "\n"; |
9135 | outs() << "\t x15 " << format("0x%016" PRIx64"l" "x", cpu64.x[15]); |
9136 | outs() << " x16 " << format("0x%016" PRIx64"l" "x", cpu64.x[16]); |
9137 | outs() << " x17 " << format("0x%016" PRIx64"l" "x", cpu64.x[17]) << "\n"; |
9138 | outs() << "\t x18 " << format("0x%016" PRIx64"l" "x", cpu64.x[18]); |
9139 | outs() << " x19 " << format("0x%016" PRIx64"l" "x", cpu64.x[19]); |
9140 | outs() << " x20 " << format("0x%016" PRIx64"l" "x", cpu64.x[20]) << "\n"; |
9141 | outs() << "\t x21 " << format("0x%016" PRIx64"l" "x", cpu64.x[21]); |
9142 | outs() << " x22 " << format("0x%016" PRIx64"l" "x", cpu64.x[22]); |
9143 | outs() << " x23 " << format("0x%016" PRIx64"l" "x", cpu64.x[23]) << "\n"; |
9144 | outs() << "\t x24 " << format("0x%016" PRIx64"l" "x", cpu64.x[24]); |
9145 | outs() << " x25 " << format("0x%016" PRIx64"l" "x", cpu64.x[25]); |
9146 | outs() << " x26 " << format("0x%016" PRIx64"l" "x", cpu64.x[26]) << "\n"; |
9147 | outs() << "\t x27 " << format("0x%016" PRIx64"l" "x", cpu64.x[27]); |
9148 | outs() << " x28 " << format("0x%016" PRIx64"l" "x", cpu64.x[28]); |
9149 | outs() << " fp " << format("0x%016" PRIx64"l" "x", cpu64.fp) << "\n"; |
9150 | outs() << "\t lr " << format("0x%016" PRIx64"l" "x", cpu64.lr); |
9151 | outs() << " sp " << format("0x%016" PRIx64"l" "x", cpu64.sp); |
9152 | outs() << " pc " << format("0x%016" PRIx64"l" "x", cpu64.pc) << "\n"; |
9153 | outs() << "\t cpsr " << format("0x%08" PRIx32"x", cpu64.cpsr) << "\n"; |
9154 | } |
9155 | |
9156 | static void PrintThreadCommand(MachO::thread_command t, const char *Ptr, |
9157 | bool isLittleEndian, uint32_t cputype) { |
9158 | if (t.cmd == MachO::LC_THREAD) |
9159 | outs() << " cmd LC_THREAD\n"; |
9160 | else if (t.cmd == MachO::LC_UNIXTHREAD) |
9161 | outs() << " cmd LC_UNIXTHREAD\n"; |
9162 | else |
9163 | outs() << " cmd " << t.cmd << " (unknown)\n"; |
9164 | outs() << " cmdsize " << t.cmdsize; |
9165 | if (t.cmdsize < sizeof(struct MachO::thread_command) + 2 * sizeof(uint32_t)) |
9166 | outs() << " Incorrect size\n"; |
9167 | else |
9168 | outs() << "\n"; |
9169 | |
9170 | const char *begin = Ptr + sizeof(struct MachO::thread_command); |
9171 | const char *end = Ptr + t.cmdsize; |
9172 | uint32_t flavor, count, left; |
9173 | if (cputype == MachO::CPU_TYPE_I386) { |
9174 | while (begin < end) { |
9175 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9176 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9177 | begin += sizeof(uint32_t); |
9178 | } else { |
9179 | flavor = 0; |
9180 | begin = end; |
9181 | } |
9182 | if (isLittleEndian != sys::IsLittleEndianHost) |
9183 | sys::swapByteOrder(flavor); |
9184 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9185 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9186 | begin += sizeof(uint32_t); |
9187 | } else { |
9188 | count = 0; |
9189 | begin = end; |
9190 | } |
9191 | if (isLittleEndian != sys::IsLittleEndianHost) |
9192 | sys::swapByteOrder(count); |
9193 | if (flavor == MachO::x86_THREAD_STATE32) { |
9194 | outs() << " flavor i386_THREAD_STATE\n"; |
9195 | if (count == MachO::x86_THREAD_STATE32_COUNT) |
9196 | outs() << " count i386_THREAD_STATE_COUNT\n"; |
9197 | else |
9198 | outs() << " count " << count |
9199 | << " (not x86_THREAD_STATE32_COUNT)\n"; |
9200 | MachO::x86_thread_state32_t cpu32; |
9201 | left = end - begin; |
9202 | if (left >= sizeof(MachO::x86_thread_state32_t)) { |
9203 | memcpy(&cpu32, begin, sizeof(MachO::x86_thread_state32_t)); |
9204 | begin += sizeof(MachO::x86_thread_state32_t); |
9205 | } else { |
9206 | memset(&cpu32, '\0', sizeof(MachO::x86_thread_state32_t)); |
9207 | memcpy(&cpu32, begin, left); |
9208 | begin += left; |
9209 | } |
9210 | if (isLittleEndian != sys::IsLittleEndianHost) |
9211 | swapStruct(cpu32); |
9212 | Print_x86_thread_state32_t(cpu32); |
9213 | } else if (flavor == MachO::x86_THREAD_STATE) { |
9214 | outs() << " flavor x86_THREAD_STATE\n"; |
9215 | if (count == MachO::x86_THREAD_STATE_COUNT) |
9216 | outs() << " count x86_THREAD_STATE_COUNT\n"; |
9217 | else |
9218 | outs() << " count " << count |
9219 | << " (not x86_THREAD_STATE_COUNT)\n"; |
9220 | struct MachO::x86_thread_state_t ts; |
9221 | left = end - begin; |
9222 | if (left >= sizeof(MachO::x86_thread_state_t)) { |
9223 | memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); |
9224 | begin += sizeof(MachO::x86_thread_state_t); |
9225 | } else { |
9226 | memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); |
9227 | memcpy(&ts, begin, left); |
9228 | begin += left; |
9229 | } |
9230 | if (isLittleEndian != sys::IsLittleEndianHost) |
9231 | swapStruct(ts); |
9232 | if (ts.tsh.flavor == MachO::x86_THREAD_STATE32) { |
9233 | outs() << "\t tsh.flavor x86_THREAD_STATE32 "; |
9234 | if (ts.tsh.count == MachO::x86_THREAD_STATE32_COUNT) |
9235 | outs() << "tsh.count x86_THREAD_STATE32_COUNT\n"; |
9236 | else |
9237 | outs() << "tsh.count " << ts.tsh.count |
9238 | << " (not x86_THREAD_STATE32_COUNT\n"; |
9239 | Print_x86_thread_state32_t(ts.uts.ts32); |
9240 | } else { |
9241 | outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " |
9242 | << ts.tsh.count << "\n"; |
9243 | } |
9244 | } else { |
9245 | outs() << " flavor " << flavor << " (unknown)\n"; |
9246 | outs() << " count " << count << "\n"; |
9247 | outs() << " state (unknown)\n"; |
9248 | begin += count * sizeof(uint32_t); |
9249 | } |
9250 | } |
9251 | } else if (cputype == MachO::CPU_TYPE_X86_64) { |
9252 | while (begin < end) { |
9253 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9254 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9255 | begin += sizeof(uint32_t); |
9256 | } else { |
9257 | flavor = 0; |
9258 | begin = end; |
9259 | } |
9260 | if (isLittleEndian != sys::IsLittleEndianHost) |
9261 | sys::swapByteOrder(flavor); |
9262 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9263 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9264 | begin += sizeof(uint32_t); |
9265 | } else { |
9266 | count = 0; |
9267 | begin = end; |
9268 | } |
9269 | if (isLittleEndian != sys::IsLittleEndianHost) |
9270 | sys::swapByteOrder(count); |
9271 | if (flavor == MachO::x86_THREAD_STATE64) { |
9272 | outs() << " flavor x86_THREAD_STATE64\n"; |
9273 | if (count == MachO::x86_THREAD_STATE64_COUNT) |
9274 | outs() << " count x86_THREAD_STATE64_COUNT\n"; |
9275 | else |
9276 | outs() << " count " << count |
9277 | << " (not x86_THREAD_STATE64_COUNT)\n"; |
9278 | MachO::x86_thread_state64_t cpu64; |
9279 | left = end - begin; |
9280 | if (left >= sizeof(MachO::x86_thread_state64_t)) { |
9281 | memcpy(&cpu64, begin, sizeof(MachO::x86_thread_state64_t)); |
9282 | begin += sizeof(MachO::x86_thread_state64_t); |
9283 | } else { |
9284 | memset(&cpu64, '\0', sizeof(MachO::x86_thread_state64_t)); |
9285 | memcpy(&cpu64, begin, left); |
9286 | begin += left; |
9287 | } |
9288 | if (isLittleEndian != sys::IsLittleEndianHost) |
9289 | swapStruct(cpu64); |
9290 | Print_x86_thread_state64_t(cpu64); |
9291 | } else if (flavor == MachO::x86_THREAD_STATE) { |
9292 | outs() << " flavor x86_THREAD_STATE\n"; |
9293 | if (count == MachO::x86_THREAD_STATE_COUNT) |
9294 | outs() << " count x86_THREAD_STATE_COUNT\n"; |
9295 | else |
9296 | outs() << " count " << count |
9297 | << " (not x86_THREAD_STATE_COUNT)\n"; |
9298 | struct MachO::x86_thread_state_t ts; |
9299 | left = end - begin; |
9300 | if (left >= sizeof(MachO::x86_thread_state_t)) { |
9301 | memcpy(&ts, begin, sizeof(MachO::x86_thread_state_t)); |
9302 | begin += sizeof(MachO::x86_thread_state_t); |
9303 | } else { |
9304 | memset(&ts, '\0', sizeof(MachO::x86_thread_state_t)); |
9305 | memcpy(&ts, begin, left); |
9306 | begin += left; |
9307 | } |
9308 | if (isLittleEndian != sys::IsLittleEndianHost) |
9309 | swapStruct(ts); |
9310 | if (ts.tsh.flavor == MachO::x86_THREAD_STATE64) { |
9311 | outs() << "\t tsh.flavor x86_THREAD_STATE64 "; |
9312 | if (ts.tsh.count == MachO::x86_THREAD_STATE64_COUNT) |
9313 | outs() << "tsh.count x86_THREAD_STATE64_COUNT\n"; |
9314 | else |
9315 | outs() << "tsh.count " << ts.tsh.count |
9316 | << " (not x86_THREAD_STATE64_COUNT\n"; |
9317 | Print_x86_thread_state64_t(ts.uts.ts64); |
9318 | } else { |
9319 | outs() << "\t tsh.flavor " << ts.tsh.flavor << " tsh.count " |
9320 | << ts.tsh.count << "\n"; |
9321 | } |
9322 | } else if (flavor == MachO::x86_FLOAT_STATE) { |
9323 | outs() << " flavor x86_FLOAT_STATE\n"; |
9324 | if (count == MachO::x86_FLOAT_STATE_COUNT) |
9325 | outs() << " count x86_FLOAT_STATE_COUNT\n"; |
9326 | else |
9327 | outs() << " count " << count << " (not x86_FLOAT_STATE_COUNT)\n"; |
9328 | struct MachO::x86_float_state_t fs; |
9329 | left = end - begin; |
9330 | if (left >= sizeof(MachO::x86_float_state_t)) { |
9331 | memcpy(&fs, begin, sizeof(MachO::x86_float_state_t)); |
9332 | begin += sizeof(MachO::x86_float_state_t); |
9333 | } else { |
9334 | memset(&fs, '\0', sizeof(MachO::x86_float_state_t)); |
9335 | memcpy(&fs, begin, left); |
9336 | begin += left; |
9337 | } |
9338 | if (isLittleEndian != sys::IsLittleEndianHost) |
9339 | swapStruct(fs); |
9340 | if (fs.fsh.flavor == MachO::x86_FLOAT_STATE64) { |
9341 | outs() << "\t fsh.flavor x86_FLOAT_STATE64 "; |
9342 | if (fs.fsh.count == MachO::x86_FLOAT_STATE64_COUNT) |
9343 | outs() << "fsh.count x86_FLOAT_STATE64_COUNT\n"; |
9344 | else |
9345 | outs() << "fsh.count " << fs.fsh.count |
9346 | << " (not x86_FLOAT_STATE64_COUNT\n"; |
9347 | Print_x86_float_state_t(fs.ufs.fs64); |
9348 | } else { |
9349 | outs() << "\t fsh.flavor " << fs.fsh.flavor << " fsh.count " |
9350 | << fs.fsh.count << "\n"; |
9351 | } |
9352 | } else if (flavor == MachO::x86_EXCEPTION_STATE) { |
9353 | outs() << " flavor x86_EXCEPTION_STATE\n"; |
9354 | if (count == MachO::x86_EXCEPTION_STATE_COUNT) |
9355 | outs() << " count x86_EXCEPTION_STATE_COUNT\n"; |
9356 | else |
9357 | outs() << " count " << count |
9358 | << " (not x86_EXCEPTION_STATE_COUNT)\n"; |
9359 | struct MachO::x86_exception_state_t es; |
9360 | left = end - begin; |
9361 | if (left >= sizeof(MachO::x86_exception_state_t)) { |
9362 | memcpy(&es, begin, sizeof(MachO::x86_exception_state_t)); |
9363 | begin += sizeof(MachO::x86_exception_state_t); |
9364 | } else { |
9365 | memset(&es, '\0', sizeof(MachO::x86_exception_state_t)); |
9366 | memcpy(&es, begin, left); |
9367 | begin += left; |
9368 | } |
9369 | if (isLittleEndian != sys::IsLittleEndianHost) |
9370 | swapStruct(es); |
9371 | if (es.esh.flavor == MachO::x86_EXCEPTION_STATE64) { |
9372 | outs() << "\t esh.flavor x86_EXCEPTION_STATE64\n"; |
9373 | if (es.esh.count == MachO::x86_EXCEPTION_STATE64_COUNT) |
9374 | outs() << "\t esh.count x86_EXCEPTION_STATE64_COUNT\n"; |
9375 | else |
9376 | outs() << "\t esh.count " << es.esh.count |
9377 | << " (not x86_EXCEPTION_STATE64_COUNT\n"; |
9378 | Print_x86_exception_state_t(es.ues.es64); |
9379 | } else { |
9380 | outs() << "\t esh.flavor " << es.esh.flavor << " esh.count " |
9381 | << es.esh.count << "\n"; |
9382 | } |
9383 | } else if (flavor == MachO::x86_EXCEPTION_STATE64) { |
9384 | outs() << " flavor x86_EXCEPTION_STATE64\n"; |
9385 | if (count == MachO::x86_EXCEPTION_STATE64_COUNT) |
9386 | outs() << " count x86_EXCEPTION_STATE64_COUNT\n"; |
9387 | else |
9388 | outs() << " count " << count |
9389 | << " (not x86_EXCEPTION_STATE64_COUNT)\n"; |
9390 | struct MachO::x86_exception_state64_t es64; |
9391 | left = end - begin; |
9392 | if (left >= sizeof(MachO::x86_exception_state64_t)) { |
9393 | memcpy(&es64, begin, sizeof(MachO::x86_exception_state64_t)); |
9394 | begin += sizeof(MachO::x86_exception_state64_t); |
9395 | } else { |
9396 | memset(&es64, '\0', sizeof(MachO::x86_exception_state64_t)); |
9397 | memcpy(&es64, begin, left); |
9398 | begin += left; |
9399 | } |
9400 | if (isLittleEndian != sys::IsLittleEndianHost) |
9401 | swapStruct(es64); |
9402 | Print_x86_exception_state_t(es64); |
9403 | } else { |
9404 | outs() << " flavor " << flavor << " (unknown)\n"; |
9405 | outs() << " count " << count << "\n"; |
9406 | outs() << " state (unknown)\n"; |
9407 | begin += count * sizeof(uint32_t); |
9408 | } |
9409 | } |
9410 | } else if (cputype == MachO::CPU_TYPE_ARM) { |
9411 | while (begin < end) { |
9412 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9413 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9414 | begin += sizeof(uint32_t); |
9415 | } else { |
9416 | flavor = 0; |
9417 | begin = end; |
9418 | } |
9419 | if (isLittleEndian != sys::IsLittleEndianHost) |
9420 | sys::swapByteOrder(flavor); |
9421 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9422 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9423 | begin += sizeof(uint32_t); |
9424 | } else { |
9425 | count = 0; |
9426 | begin = end; |
9427 | } |
9428 | if (isLittleEndian != sys::IsLittleEndianHost) |
9429 | sys::swapByteOrder(count); |
9430 | if (flavor == MachO::ARM_THREAD_STATE) { |
9431 | outs() << " flavor ARM_THREAD_STATE\n"; |
9432 | if (count == MachO::ARM_THREAD_STATE_COUNT) |
9433 | outs() << " count ARM_THREAD_STATE_COUNT\n"; |
9434 | else |
9435 | outs() << " count " << count |
9436 | << " (not ARM_THREAD_STATE_COUNT)\n"; |
9437 | MachO::arm_thread_state32_t cpu32; |
9438 | left = end - begin; |
9439 | if (left >= sizeof(MachO::arm_thread_state32_t)) { |
9440 | memcpy(&cpu32, begin, sizeof(MachO::arm_thread_state32_t)); |
9441 | begin += sizeof(MachO::arm_thread_state32_t); |
9442 | } else { |
9443 | memset(&cpu32, '\0', sizeof(MachO::arm_thread_state32_t)); |
9444 | memcpy(&cpu32, begin, left); |
9445 | begin += left; |
9446 | } |
9447 | if (isLittleEndian != sys::IsLittleEndianHost) |
9448 | swapStruct(cpu32); |
9449 | Print_arm_thread_state32_t(cpu32); |
9450 | } else { |
9451 | outs() << " flavor " << flavor << " (unknown)\n"; |
9452 | outs() << " count " << count << "\n"; |
9453 | outs() << " state (unknown)\n"; |
9454 | begin += count * sizeof(uint32_t); |
9455 | } |
9456 | } |
9457 | } else if (cputype == MachO::CPU_TYPE_ARM64) { |
9458 | while (begin < end) { |
9459 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9460 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9461 | begin += sizeof(uint32_t); |
9462 | } else { |
9463 | flavor = 0; |
9464 | begin = end; |
9465 | } |
9466 | if (isLittleEndian != sys::IsLittleEndianHost) |
9467 | sys::swapByteOrder(flavor); |
9468 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9469 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9470 | begin += sizeof(uint32_t); |
9471 | } else { |
9472 | count = 0; |
9473 | begin = end; |
9474 | } |
9475 | if (isLittleEndian != sys::IsLittleEndianHost) |
9476 | sys::swapByteOrder(count); |
9477 | if (flavor == MachO::ARM_THREAD_STATE64) { |
9478 | outs() << " flavor ARM_THREAD_STATE64\n"; |
9479 | if (count == MachO::ARM_THREAD_STATE64_COUNT) |
9480 | outs() << " count ARM_THREAD_STATE64_COUNT\n"; |
9481 | else |
9482 | outs() << " count " << count |
9483 | << " (not ARM_THREAD_STATE64_COUNT)\n"; |
9484 | MachO::arm_thread_state64_t cpu64; |
9485 | left = end - begin; |
9486 | if (left >= sizeof(MachO::arm_thread_state64_t)) { |
9487 | memcpy(&cpu64, begin, sizeof(MachO::arm_thread_state64_t)); |
9488 | begin += sizeof(MachO::arm_thread_state64_t); |
9489 | } else { |
9490 | memset(&cpu64, '\0', sizeof(MachO::arm_thread_state64_t)); |
9491 | memcpy(&cpu64, begin, left); |
9492 | begin += left; |
9493 | } |
9494 | if (isLittleEndian != sys::IsLittleEndianHost) |
9495 | swapStruct(cpu64); |
9496 | Print_arm_thread_state64_t(cpu64); |
9497 | } else { |
9498 | outs() << " flavor " << flavor << " (unknown)\n"; |
9499 | outs() << " count " << count << "\n"; |
9500 | outs() << " state (unknown)\n"; |
9501 | begin += count * sizeof(uint32_t); |
9502 | } |
9503 | } |
9504 | } else { |
9505 | while (begin < end) { |
9506 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9507 | memcpy((char *)&flavor, begin, sizeof(uint32_t)); |
9508 | begin += sizeof(uint32_t); |
9509 | } else { |
9510 | flavor = 0; |
9511 | begin = end; |
9512 | } |
9513 | if (isLittleEndian != sys::IsLittleEndianHost) |
9514 | sys::swapByteOrder(flavor); |
9515 | if (end - begin > (ptrdiff_t)sizeof(uint32_t)) { |
9516 | memcpy((char *)&count, begin, sizeof(uint32_t)); |
9517 | begin += sizeof(uint32_t); |
9518 | } else { |
9519 | count = 0; |
9520 | begin = end; |
9521 | } |
9522 | if (isLittleEndian != sys::IsLittleEndianHost) |
9523 | sys::swapByteOrder(count); |
9524 | outs() << " flavor " << flavor << "\n"; |
9525 | outs() << " count " << count << "\n"; |
9526 | outs() << " state (Unknown cputype/cpusubtype)\n"; |
9527 | begin += count * sizeof(uint32_t); |
9528 | } |
9529 | } |
9530 | } |
9531 | |
9532 | static void PrintDylibCommand(MachO::dylib_command dl, const char *Ptr) { |
9533 | if (dl.cmd == MachO::LC_ID_DYLIB) |
9534 | outs() << " cmd LC_ID_DYLIB\n"; |
9535 | else if (dl.cmd == MachO::LC_LOAD_DYLIB) |
9536 | outs() << " cmd LC_LOAD_DYLIB\n"; |
9537 | else if (dl.cmd == MachO::LC_LOAD_WEAK_DYLIB) |
9538 | outs() << " cmd LC_LOAD_WEAK_DYLIB\n"; |
9539 | else if (dl.cmd == MachO::LC_REEXPORT_DYLIB) |
9540 | outs() << " cmd LC_REEXPORT_DYLIB\n"; |
9541 | else if (dl.cmd == MachO::LC_LAZY_LOAD_DYLIB) |
9542 | outs() << " cmd LC_LAZY_LOAD_DYLIB\n"; |
9543 | else if (dl.cmd == MachO::LC_LOAD_UPWARD_DYLIB) |
9544 | outs() << " cmd LC_LOAD_UPWARD_DYLIB\n"; |
9545 | else |
9546 | outs() << " cmd " << dl.cmd << " (unknown)\n"; |
9547 | outs() << " cmdsize " << dl.cmdsize; |
9548 | if (dl.cmdsize < sizeof(struct MachO::dylib_command)) |
9549 | outs() << " Incorrect size\n"; |
9550 | else |
9551 | outs() << "\n"; |
9552 | if (dl.dylib.name < dl.cmdsize) { |
9553 | const char *P = (const char *)(Ptr) + dl.dylib.name; |
9554 | outs() << " name " << P << " (offset " << dl.dylib.name << ")\n"; |
9555 | } else { |
9556 | outs() << " name ?(bad offset " << dl.dylib.name << ")\n"; |
9557 | } |
9558 | outs() << " time stamp " << dl.dylib.timestamp << " "; |
9559 | time_t t = dl.dylib.timestamp; |
9560 | outs() << ctime(&t); |
9561 | outs() << " current version "; |
9562 | if (dl.dylib.current_version == 0xffffffff) |
9563 | outs() << "n/a\n"; |
9564 | else |
9565 | outs() << ((dl.dylib.current_version >> 16) & 0xffff) << "." |
9566 | << ((dl.dylib.current_version >> 8) & 0xff) << "." |
9567 | << (dl.dylib.current_version & 0xff) << "\n"; |
9568 | outs() << "compatibility version "; |
9569 | if (dl.dylib.compatibility_version == 0xffffffff) |
9570 | outs() << "n/a\n"; |
9571 | else |
9572 | outs() << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "." |
9573 | << ((dl.dylib.compatibility_version >> 8) & 0xff) << "." |
9574 | << (dl.dylib.compatibility_version & 0xff) << "\n"; |
9575 | } |
9576 | |
9577 | static void PrintLinkEditDataCommand(MachO::linkedit_data_command ld, |
9578 | uint32_t object_size) { |
9579 | if (ld.cmd == MachO::LC_CODE_SIGNATURE) |
9580 | outs() << " cmd LC_CODE_SIGNATURE\n"; |
9581 | else if (ld.cmd == MachO::LC_SEGMENT_SPLIT_INFO) |
9582 | outs() << " cmd LC_SEGMENT_SPLIT_INFO\n"; |
9583 | else if (ld.cmd == MachO::LC_FUNCTION_STARTS) |
9584 | outs() << " cmd LC_FUNCTION_STARTS\n"; |
9585 | else if (ld.cmd == MachO::LC_DATA_IN_CODE) |
9586 | outs() << " cmd LC_DATA_IN_CODE\n"; |
9587 | else if (ld.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS) |
9588 | outs() << " cmd LC_DYLIB_CODE_SIGN_DRS\n"; |
9589 | else if (ld.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) |
9590 | outs() << " cmd LC_LINKER_OPTIMIZATION_HINT\n"; |
9591 | else |
9592 | outs() << " cmd " << ld.cmd << " (?)\n"; |
9593 | outs() << " cmdsize " << ld.cmdsize; |
9594 | if (ld.cmdsize != sizeof(struct MachO::linkedit_data_command)) |
9595 | outs() << " Incorrect size\n"; |
9596 | else |
9597 | outs() << "\n"; |
9598 | outs() << " dataoff " << ld.dataoff; |
9599 | if (ld.dataoff > object_size) |
9600 | outs() << " (past end of file)\n"; |
9601 | else |
9602 | outs() << "\n"; |
9603 | outs() << " datasize " << ld.datasize; |
9604 | uint64_t big_size = ld.dataoff; |
9605 | big_size += ld.datasize; |
9606 | if (big_size > object_size) |
9607 | outs() << " (past end of file)\n"; |
9608 | else |
9609 | outs() << "\n"; |
9610 | } |
9611 | |
9612 | static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype, |
9613 | uint32_t cputype, bool verbose) { |
9614 | StringRef Buf = Obj->getData(); |
9615 | unsigned Index = 0; |
9616 | for (const auto &Command : Obj->load_commands()) { |
9617 | outs() << "Load command " << Index++ << "\n"; |
9618 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
9619 | MachO::segment_command SLC = Obj->getSegmentLoadCommand(Command); |
9620 | const char *sg_segname = SLC.segname; |
9621 | PrintSegmentCommand(SLC.cmd, SLC.cmdsize, SLC.segname, SLC.vmaddr, |
9622 | SLC.vmsize, SLC.fileoff, SLC.filesize, SLC.maxprot, |
9623 | SLC.initprot, SLC.nsects, SLC.flags, Buf.size(), |
9624 | verbose); |
9625 | for (unsigned j = 0; j < SLC.nsects; j++) { |
9626 | MachO::section S = Obj->getSection(Command, j); |
9627 | PrintSection(S.sectname, S.segname, S.addr, S.size, S.offset, S.align, |
9628 | S.reloff, S.nreloc, S.flags, S.reserved1, S.reserved2, |
9629 | SLC.cmd, sg_segname, filetype, Buf.size(), verbose); |
9630 | } |
9631 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
9632 | MachO::segment_command_64 SLC_64 = Obj->getSegment64LoadCommand(Command); |
9633 | const char *sg_segname = SLC_64.segname; |
9634 | PrintSegmentCommand(SLC_64.cmd, SLC_64.cmdsize, SLC_64.segname, |
9635 | SLC_64.vmaddr, SLC_64.vmsize, SLC_64.fileoff, |
9636 | SLC_64.filesize, SLC_64.maxprot, SLC_64.initprot, |
9637 | SLC_64.nsects, SLC_64.flags, Buf.size(), verbose); |
9638 | for (unsigned j = 0; j < SLC_64.nsects; j++) { |
9639 | MachO::section_64 S_64 = Obj->getSection64(Command, j); |
9640 | PrintSection(S_64.sectname, S_64.segname, S_64.addr, S_64.size, |
9641 | S_64.offset, S_64.align, S_64.reloff, S_64.nreloc, |
9642 | S_64.flags, S_64.reserved1, S_64.reserved2, SLC_64.cmd, |
9643 | sg_segname, filetype, Buf.size(), verbose); |
9644 | } |
9645 | } else if (Command.C.cmd == MachO::LC_SYMTAB) { |
9646 | MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); |
9647 | PrintSymtabLoadCommand(Symtab, Obj->is64Bit(), Buf.size()); |
9648 | } else if (Command.C.cmd == MachO::LC_DYSYMTAB) { |
9649 | MachO::dysymtab_command Dysymtab = Obj->getDysymtabLoadCommand(); |
9650 | MachO::symtab_command Symtab = Obj->getSymtabLoadCommand(); |
9651 | PrintDysymtabLoadCommand(Dysymtab, Symtab.nsyms, Buf.size(), |
9652 | Obj->is64Bit()); |
9653 | } else if (Command.C.cmd == MachO::LC_DYLD_INFO || |
9654 | Command.C.cmd == MachO::LC_DYLD_INFO_ONLY) { |
9655 | MachO::dyld_info_command DyldInfo = Obj->getDyldInfoLoadCommand(Command); |
9656 | PrintDyldInfoLoadCommand(DyldInfo, Buf.size()); |
9657 | } else if (Command.C.cmd == MachO::LC_LOAD_DYLINKER || |
9658 | Command.C.cmd == MachO::LC_ID_DYLINKER || |
9659 | Command.C.cmd == MachO::LC_DYLD_ENVIRONMENT) { |
9660 | MachO::dylinker_command Dyld = Obj->getDylinkerCommand(Command); |
9661 | PrintDyldLoadCommand(Dyld, Command.Ptr); |
9662 | } else if (Command.C.cmd == MachO::LC_UUID) { |
9663 | MachO::uuid_command Uuid = Obj->getUuidCommand(Command); |
9664 | PrintUuidLoadCommand(Uuid); |
9665 | } else if (Command.C.cmd == MachO::LC_RPATH) { |
9666 | MachO::rpath_command Rpath = Obj->getRpathCommand(Command); |
9667 | PrintRpathLoadCommand(Rpath, Command.Ptr); |
9668 | } else if (Command.C.cmd == MachO::LC_VERSION_MIN_MACOSX || |
9669 | Command.C.cmd == MachO::LC_VERSION_MIN_IPHONEOS || |
9670 | Command.C.cmd == MachO::LC_VERSION_MIN_TVOS || |
9671 | Command.C.cmd == MachO::LC_VERSION_MIN_WATCHOS) { |
9672 | MachO::version_min_command Vd = Obj->getVersionMinLoadCommand(Command); |
9673 | PrintVersionMinLoadCommand(Vd); |
9674 | } else if (Command.C.cmd == MachO::LC_NOTE) { |
9675 | MachO::note_command Nt = Obj->getNoteLoadCommand(Command); |
9676 | PrintNoteLoadCommand(Nt); |
9677 | } else if (Command.C.cmd == MachO::LC_BUILD_VERSION) { |
9678 | MachO::build_version_command Bv = |
9679 | Obj->getBuildVersionLoadCommand(Command); |
9680 | PrintBuildVersionLoadCommand(Obj, Bv); |
9681 | } else if (Command.C.cmd == MachO::LC_SOURCE_VERSION) { |
9682 | MachO::source_version_command Sd = Obj->getSourceVersionCommand(Command); |
9683 | PrintSourceVersionCommand(Sd); |
9684 | } else if (Command.C.cmd == MachO::LC_MAIN) { |
9685 | MachO::entry_point_command Ep = Obj->getEntryPointCommand(Command); |
9686 | PrintEntryPointCommand(Ep); |
9687 | } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO) { |
9688 | MachO::encryption_info_command Ei = |
9689 | Obj->getEncryptionInfoCommand(Command); |
9690 | PrintEncryptionInfoCommand(Ei, Buf.size()); |
9691 | } else if (Command.C.cmd == MachO::LC_ENCRYPTION_INFO_64) { |
9692 | MachO::encryption_info_command_64 Ei = |
9693 | Obj->getEncryptionInfoCommand64(Command); |
9694 | PrintEncryptionInfoCommand64(Ei, Buf.size()); |
9695 | } else if (Command.C.cmd == MachO::LC_LINKER_OPTION) { |
9696 | MachO::linker_option_command Lo = |
9697 | Obj->getLinkerOptionLoadCommand(Command); |
9698 | PrintLinkerOptionCommand(Lo, Command.Ptr); |
9699 | } else if (Command.C.cmd == MachO::LC_SUB_FRAMEWORK) { |
9700 | MachO::sub_framework_command Sf = Obj->getSubFrameworkCommand(Command); |
9701 | PrintSubFrameworkCommand(Sf, Command.Ptr); |
9702 | } else if (Command.C.cmd == MachO::LC_SUB_UMBRELLA) { |
9703 | MachO::sub_umbrella_command Sf = Obj->getSubUmbrellaCommand(Command); |
9704 | PrintSubUmbrellaCommand(Sf, Command.Ptr); |
9705 | } else if (Command.C.cmd == MachO::LC_SUB_LIBRARY) { |
9706 | MachO::sub_library_command Sl = Obj->getSubLibraryCommand(Command); |
9707 | PrintSubLibraryCommand(Sl, Command.Ptr); |
9708 | } else if (Command.C.cmd == MachO::LC_SUB_CLIENT) { |
9709 | MachO::sub_client_command Sc = Obj->getSubClientCommand(Command); |
9710 | PrintSubClientCommand(Sc, Command.Ptr); |
9711 | } else if (Command.C.cmd == MachO::LC_ROUTINES) { |
9712 | MachO::routines_command Rc = Obj->getRoutinesCommand(Command); |
9713 | PrintRoutinesCommand(Rc); |
9714 | } else if (Command.C.cmd == MachO::LC_ROUTINES_64) { |
9715 | MachO::routines_command_64 Rc = Obj->getRoutinesCommand64(Command); |
9716 | PrintRoutinesCommand64(Rc); |
9717 | } else if (Command.C.cmd == MachO::LC_THREAD || |
9718 | Command.C.cmd == MachO::LC_UNIXTHREAD) { |
9719 | MachO::thread_command Tc = Obj->getThreadCommand(Command); |
9720 | PrintThreadCommand(Tc, Command.Ptr, Obj->isLittleEndian(), cputype); |
9721 | } else if (Command.C.cmd == MachO::LC_LOAD_DYLIB || |
9722 | Command.C.cmd == MachO::LC_ID_DYLIB || |
9723 | Command.C.cmd == MachO::LC_LOAD_WEAK_DYLIB || |
9724 | Command.C.cmd == MachO::LC_REEXPORT_DYLIB || |
9725 | Command.C.cmd == MachO::LC_LAZY_LOAD_DYLIB || |
9726 | Command.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB) { |
9727 | MachO::dylib_command Dl = Obj->getDylibIDLoadCommand(Command); |
9728 | PrintDylibCommand(Dl, Command.Ptr); |
9729 | } else if (Command.C.cmd == MachO::LC_CODE_SIGNATURE || |
9730 | Command.C.cmd == MachO::LC_SEGMENT_SPLIT_INFO || |
9731 | Command.C.cmd == MachO::LC_FUNCTION_STARTS || |
9732 | Command.C.cmd == MachO::LC_DATA_IN_CODE || |
9733 | Command.C.cmd == MachO::LC_DYLIB_CODE_SIGN_DRS || |
9734 | Command.C.cmd == MachO::LC_LINKER_OPTIMIZATION_HINT) { |
9735 | MachO::linkedit_data_command Ld = |
9736 | Obj->getLinkeditDataLoadCommand(Command); |
9737 | PrintLinkEditDataCommand(Ld, Buf.size()); |
9738 | } else { |
9739 | outs() << " cmd ?(" << format("0x%08" PRIx32"x", Command.C.cmd) |
9740 | << ")\n"; |
9741 | outs() << " cmdsize " << Command.C.cmdsize << "\n"; |
9742 | // TODO: get and print the raw bytes of the load command. |
9743 | } |
9744 | // TODO: print all the other kinds of load commands. |
9745 | } |
9746 | } |
9747 | |
9748 | static void PrintMachHeader(const MachOObjectFile *Obj, bool verbose) { |
9749 | if (Obj->is64Bit()) { |
9750 | MachO::mach_header_64 H_64; |
9751 | H_64 = Obj->getHeader64(); |
9752 | PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype, |
9753 | H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose); |
9754 | } else { |
9755 | MachO::mach_header H; |
9756 | H = Obj->getHeader(); |
9757 | PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds, |
9758 | H.sizeofcmds, H.flags, verbose); |
9759 | } |
9760 | } |
9761 | |
9762 | void llvm::printMachOFileHeader(const object::ObjectFile *Obj) { |
9763 | const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj); |
9764 | PrintMachHeader(file, !NonVerbose); |
9765 | } |
9766 | |
9767 | void llvm::printMachOLoadCommands(const object::ObjectFile *Obj) { |
9768 | const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj); |
9769 | uint32_t filetype = 0; |
9770 | uint32_t cputype = 0; |
9771 | if (file->is64Bit()) { |
9772 | MachO::mach_header_64 H_64; |
9773 | H_64 = file->getHeader64(); |
9774 | filetype = H_64.filetype; |
9775 | cputype = H_64.cputype; |
9776 | } else { |
9777 | MachO::mach_header H; |
9778 | H = file->getHeader(); |
9779 | filetype = H.filetype; |
9780 | cputype = H.cputype; |
9781 | } |
9782 | PrintLoadCommands(file, filetype, cputype, !NonVerbose); |
9783 | } |
9784 | |
9785 | //===----------------------------------------------------------------------===// |
9786 | // export trie dumping |
9787 | //===----------------------------------------------------------------------===// |
9788 | |
9789 | void llvm::printMachOExportsTrie(const object::MachOObjectFile *Obj) { |
9790 | uint64_t BaseSegmentAddress = 0; |
9791 | for (const auto &Command : Obj->load_commands()) { |
9792 | if (Command.C.cmd == MachO::LC_SEGMENT) { |
9793 | MachO::segment_command Seg = Obj->getSegmentLoadCommand(Command); |
9794 | if (Seg.fileoff == 0 && Seg.filesize != 0) { |
9795 | BaseSegmentAddress = Seg.vmaddr; |
9796 | break; |
9797 | } |
9798 | } else if (Command.C.cmd == MachO::LC_SEGMENT_64) { |
9799 | MachO::segment_command_64 Seg = Obj->getSegment64LoadCommand(Command); |
9800 | if (Seg.fileoff == 0 && Seg.filesize != 0) { |
9801 | BaseSegmentAddress = Seg.vmaddr; |
9802 | break; |
9803 | } |
9804 | } |
9805 | } |
9806 | Error Err = Error::success(); |
9807 | for (const llvm::object::ExportEntry &Entry : Obj->exports(Err)) { |
9808 | uint64_t Flags = Entry.flags(); |
9809 | bool ReExport = (Flags & MachO::EXPORT_SYMBOL_FLAGS_REEXPORT); |
9810 | bool WeakDef = (Flags & MachO::EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION); |
9811 | bool ThreadLocal = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == |
9812 | MachO::EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL); |
9813 | bool Abs = ((Flags & MachO::EXPORT_SYMBOL_FLAGS_KIND_MASK) == |
9814 | MachO::EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE); |
9815 | bool Resolver = (Flags & MachO::EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER); |
9816 | if (ReExport) |
9817 | outs() << "[re-export] "; |
9818 | else |
9819 | outs() << format("0x%08llX ", |
9820 | Entry.address() + BaseSegmentAddress); |
9821 | outs() << Entry.name(); |
9822 | if (WeakDef || ThreadLocal || Resolver || Abs) { |
9823 | bool NeedsComma = false; |
9824 | outs() << " ["; |
9825 | if (WeakDef) { |
9826 | outs() << "weak_def"; |
9827 | NeedsComma = true; |
9828 | } |
9829 | if (ThreadLocal) { |
9830 | if (NeedsComma) |
9831 | outs() << ", "; |
9832 | outs() << "per-thread"; |
9833 | NeedsComma = true; |
9834 | } |
9835 | if (Abs) { |
9836 | if (NeedsComma) |
9837 | outs() << ", "; |
9838 | outs() << "absolute"; |
9839 | NeedsComma = true; |
9840 | } |
9841 | if (Resolver) { |
9842 | if (NeedsComma) |
9843 | outs() << ", "; |
9844 | outs() << format("resolver=0x%08llX", Entry.other()); |
9845 | NeedsComma = true; |
9846 | } |
9847 | outs() << "]"; |
9848 | } |
9849 | if (ReExport) { |
9850 | StringRef DylibName = "unknown"; |
9851 | int Ordinal = Entry.other() - 1; |
9852 | Obj->getLibraryShortNameByIndex(Ordinal, DylibName); |
9853 | if (Entry.otherName().empty()) |
9854 | outs() << " (from " << DylibName << ")"; |
9855 | else |
9856 | outs() << " (" << Entry.otherName() << " from " << DylibName << ")"; |
9857 | } |
9858 | outs() << "\n"; |
9859 | } |
9860 | if (Err) |
9861 | report_error(Obj->getFileName(), std::move(Err)); |
9862 | } |
9863 | |
9864 | //===----------------------------------------------------------------------===// |
9865 | // rebase table dumping |
9866 | //===----------------------------------------------------------------------===// |
9867 | |
9868 | void llvm::printMachORebaseTable(object::MachOObjectFile *Obj) { |
9869 | outs() << "segment section address type\n"; |
9870 | Error Err = Error::success(); |
9871 | for (const llvm::object::MachORebaseEntry &Entry : Obj->rebaseTable(Err)) { |
9872 | StringRef SegmentName = Entry.segmentName(); |
9873 | StringRef SectionName = Entry.sectionName(); |
9874 | uint64_t Address = Entry.address(); |
9875 | |
9876 | // Table lines look like: __DATA __nl_symbol_ptr 0x0000F00C pointer |
9877 | outs() << format("%-8s %-18s 0x%08" PRIX64"l" "X" " %s\n", |
9878 | SegmentName.str().c_str(), SectionName.str().c_str(), |
9879 | Address, Entry.typeName().str().c_str()); |
9880 | } |
9881 | if (Err) |
9882 | report_error(Obj->getFileName(), std::move(Err)); |
9883 | } |
9884 | |
9885 | static StringRef ordinalName(const object::MachOObjectFile *Obj, int Ordinal) { |
9886 | StringRef DylibName; |
9887 | switch (Ordinal) { |
9888 | case MachO::BIND_SPECIAL_DYLIB_SELF: |
9889 | return "this-image"; |
9890 | case MachO::BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE: |
9891 | return "main-executable"; |
9892 | case MachO::BIND_SPECIAL_DYLIB_FLAT_LOOKUP: |
9893 | return "flat-namespace"; |
9894 | default: |
9895 | if (Ordinal > 0) { |
9896 | std::error_code EC = |
9897 | Obj->getLibraryShortNameByIndex(Ordinal - 1, DylibName); |
9898 | if (EC) |
9899 | return "<<bad library ordinal>>"; |
9900 | return DylibName; |
9901 | } |
9902 | } |
9903 | return "<<unknown special ordinal>>"; |
9904 | } |
9905 | |
9906 | //===----------------------------------------------------------------------===// |
9907 | // bind table dumping |
9908 | //===----------------------------------------------------------------------===// |
9909 | |
9910 | void llvm::printMachOBindTable(object::MachOObjectFile *Obj) { |
9911 | // Build table of sections so names can used in final output. |
9912 | outs() << "segment section address type " |
9913 | "addend dylib symbol\n"; |
9914 | Error Err = Error::success(); |
9915 | for (const llvm::object::MachOBindEntry &Entry : Obj->bindTable(Err)) { |
9916 | StringRef SegmentName = Entry.segmentName(); |
9917 | StringRef SectionName = Entry.sectionName(); |
9918 | uint64_t Address = Entry.address(); |
9919 | |
9920 | // Table lines look like: |
9921 | // __DATA __got 0x00012010 pointer 0 libSystem ___stack_chk_guard |
9922 | StringRef Attr; |
9923 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_WEAK_IMPORT) |
9924 | Attr = " (weak_import)"; |
9925 | outs() << left_justify(SegmentName, 8) << " " |
9926 | << left_justify(SectionName, 18) << " " |
9927 | << format_hex(Address, 10, true) << " " |
9928 | << left_justify(Entry.typeName(), 8) << " " |
9929 | << format_decimal(Entry.addend(), 8) << " " |
9930 | << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " |
9931 | << Entry.symbolName() << Attr << "\n"; |
9932 | } |
9933 | if (Err) |
9934 | report_error(Obj->getFileName(), std::move(Err)); |
9935 | } |
9936 | |
9937 | //===----------------------------------------------------------------------===// |
9938 | // lazy bind table dumping |
9939 | //===----------------------------------------------------------------------===// |
9940 | |
9941 | void llvm::printMachOLazyBindTable(object::MachOObjectFile *Obj) { |
9942 | outs() << "segment section address " |
9943 | "dylib symbol\n"; |
9944 | Error Err = Error::success(); |
9945 | for (const llvm::object::MachOBindEntry &Entry : Obj->lazyBindTable(Err)) { |
9946 | StringRef SegmentName = Entry.segmentName(); |
9947 | StringRef SectionName = Entry.sectionName(); |
9948 | uint64_t Address = Entry.address(); |
9949 | |
9950 | // Table lines look like: |
9951 | // __DATA __got 0x00012010 libSystem ___stack_chk_guard |
9952 | outs() << left_justify(SegmentName, 8) << " " |
9953 | << left_justify(SectionName, 18) << " " |
9954 | << format_hex(Address, 10, true) << " " |
9955 | << left_justify(ordinalName(Obj, Entry.ordinal()), 16) << " " |
9956 | << Entry.symbolName() << "\n"; |
9957 | } |
9958 | if (Err) |
9959 | report_error(Obj->getFileName(), std::move(Err)); |
9960 | } |
9961 | |
9962 | //===----------------------------------------------------------------------===// |
9963 | // weak bind table dumping |
9964 | //===----------------------------------------------------------------------===// |
9965 | |
9966 | void llvm::printMachOWeakBindTable(object::MachOObjectFile *Obj) { |
9967 | outs() << "segment section address " |
9968 | "type addend symbol\n"; |
9969 | Error Err = Error::success(); |
9970 | for (const llvm::object::MachOBindEntry &Entry : Obj->weakBindTable(Err)) { |
9971 | // Strong symbols don't have a location to update. |
9972 | if (Entry.flags() & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) { |
9973 | outs() << " strong " |
9974 | << Entry.symbolName() << "\n"; |
9975 | continue; |
9976 | } |
9977 | StringRef SegmentName = Entry.segmentName(); |
9978 | StringRef SectionName = Entry.sectionName(); |
9979 | uint64_t Address = Entry.address(); |
9980 | |
9981 | // Table lines look like: |
9982 | // __DATA __data 0x00001000 pointer 0 _foo |
9983 | outs() << left_justify(SegmentName, 8) << " " |
9984 | << left_justify(SectionName, 18) << " " |
9985 | << format_hex(Address, 10, true) << " " |
9986 | << left_justify(Entry.typeName(), 8) << " " |
9987 | << format_decimal(Entry.addend(), 8) << " " << Entry.symbolName() |
9988 | << "\n"; |
9989 | } |
9990 | if (Err) |
9991 | report_error(Obj->getFileName(), std::move(Err)); |
9992 | } |
9993 | |
9994 | // get_dyld_bind_info_symbolname() is used for disassembly and passed an |
9995 | // address, ReferenceValue, in the Mach-O file and looks in the dyld bind |
9996 | // information for that address. If the address is found its binding symbol |
9997 | // name is returned. If not nullptr is returned. |
9998 | static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue, |
9999 | struct DisassembleInfo *info) { |
10000 | if (info->bindtable == nullptr) { |
10001 | info->bindtable = llvm::make_unique<SymbolAddressMap>(); |
10002 | Error Err = Error::success(); |
10003 | for (const llvm::object::MachOBindEntry &Entry : info->O->bindTable(Err)) { |
10004 | uint64_t Address = Entry.address(); |
10005 | StringRef name = Entry.symbolName(); |
10006 | if (!name.empty()) |
10007 | (*info->bindtable)[Address] = name; |
10008 | } |
10009 | if (Err) |
10010 | report_error(info->O->getFileName(), std::move(Err)); |
10011 | } |
10012 | auto name = info->bindtable->lookup(ReferenceValue); |
10013 | return !name.empty() ? name.data() : nullptr; |
10014 | } |
10015 |