1 //===- ELFDumper.cpp - ELF-specific dumper --------------------------------===// 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 /// \file 11 /// This file implements the ELF-specific dumper for llvm-readobj. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #include "ARMEHABIPrinter.h" 16 #include "DwarfCFIEHPrinter.h" 17 #include "Error.h" 18 #include "ObjDumper.h" 19 #include "StackMapPrinter.h" 20 #include "llvm-readobj.h" 21 #include "llvm/ADT/ArrayRef.h" 22 #include "llvm/ADT/DenseMap.h" 23 #include "llvm/ADT/Optional.h" 24 #include "llvm/ADT/PointerIntPair.h" 25 #include "llvm/ADT/SmallString.h" 26 #include "llvm/ADT/SmallVector.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/StringExtras.h" 29 #include "llvm/ADT/StringRef.h" 30 #include "llvm/ADT/Twine.h" 31 #include "llvm/BinaryFormat/ELF.h" 32 #include "llvm/Object/ELF.h" 33 #include "llvm/Object/ELFObjectFile.h" 34 #include "llvm/Object/ELFTypes.h" 35 #include "llvm/Object/Error.h" 36 #include "llvm/Object/ObjectFile.h" 37 #include "llvm/Object/StackMapParser.h" 38 #include "llvm/Support/AMDGPUMetadata.h" 39 #include "llvm/Support/ARMAttributeParser.h" 40 #include "llvm/Support/ARMBuildAttributes.h" 41 #include "llvm/Support/Casting.h" 42 #include "llvm/Support/Compiler.h" 43 #include "llvm/Support/Endian.h" 44 #include "llvm/Support/ErrorHandling.h" 45 #include "llvm/Support/Format.h" 46 #include "llvm/Support/FormattedStream.h" 47 #include "llvm/Support/LEB128.h" 48 #include "llvm/Support/MathExtras.h" 49 #include "llvm/Support/MipsABIFlags.h" 50 #include "llvm/Support/ScopedPrinter.h" 51 #include "llvm/Support/raw_ostream.h" 52 #include <algorithm> 53 #include <cinttypes> 54 #include <cstddef> 55 #include <cstdint> 56 #include <cstdlib> 57 #include <iterator> 58 #include <memory> 59 #include <string> 60 #include <system_error> 61 #include <vector> 62 63 using namespace llvm; 64 using namespace llvm::object; 65 using namespace ELF; 66 67 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 68 case ns::enum: return #enum; 69 70 #define ENUM_ENT(enum, altName) \ 71 { #enum, altName, ELF::enum } 72 73 #define ENUM_ENT_1(enum) \ 74 { #enum, #enum, ELF::enum } 75 76 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 77 case ns::enum: \ 78 return std::string(#enum).substr(3); 79 80 #define TYPEDEF_ELF_TYPES(ELFT) \ 81 using ELFO = ELFFile<ELFT>; \ 82 using Elf_Addr = typename ELFT::Addr; \ 83 using Elf_Shdr = typename ELFT::Shdr; \ 84 using Elf_Sym = typename ELFT::Sym; \ 85 using Elf_Dyn = typename ELFT::Dyn; \ 86 using Elf_Dyn_Range = typename ELFT::DynRange; \ 87 using Elf_Rel = typename ELFT::Rel; \ 88 using Elf_Rela = typename ELFT::Rela; \ 89 using Elf_Relr = typename ELFT::Relr; \ 90 using Elf_Rel_Range = typename ELFT::RelRange; \ 91 using Elf_Rela_Range = typename ELFT::RelaRange; \ 92 using Elf_Relr_Range = typename ELFT::RelrRange; \ 93 using Elf_Phdr = typename ELFT::Phdr; \ 94 using Elf_Half = typename ELFT::Half; \ 95 using Elf_Ehdr = typename ELFT::Ehdr; \ 96 using Elf_Word = typename ELFT::Word; \ 97 using Elf_Hash = typename ELFT::Hash; \ 98 using Elf_GnuHash = typename ELFT::GnuHash; \ 99 using Elf_Note = typename ELFT::Note; \ 100 using Elf_Sym_Range = typename ELFT::SymRange; \ 101 using Elf_Versym = typename ELFT::Versym; \ 102 using Elf_Verneed = typename ELFT::Verneed; \ 103 using Elf_Vernaux = typename ELFT::Vernaux; \ 104 using Elf_Verdef = typename ELFT::Verdef; \ 105 using Elf_Verdaux = typename ELFT::Verdaux; \ 106 using Elf_CGProfile = typename ELFT::CGProfile; \ 107 using uintX_t = typename ELFT::uint; 108 109 namespace { 110 111 template <class ELFT> class DumpStyle; 112 113 /// Represents a contiguous uniform range in the file. We cannot just create a 114 /// range directly because when creating one of these from the .dynamic table 115 /// the size, entity size and virtual address are different entries in arbitrary 116 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 117 struct DynRegionInfo { 118 DynRegionInfo() = default; 119 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 120 : Addr(A), Size(S), EntSize(ES) {} 121 122 /// Address in current address space. 123 const void *Addr = nullptr; 124 /// Size in bytes of the region. 125 uint64_t Size = 0; 126 /// Size of each entity in the region. 127 uint64_t EntSize = 0; 128 129 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 130 const Type *Start = reinterpret_cast<const Type *>(Addr); 131 if (!Start) 132 return {Start, Start}; 133 if (EntSize != sizeof(Type) || Size % EntSize) 134 reportError("Invalid entity size"); 135 return {Start, Start + (Size / EntSize)}; 136 } 137 }; 138 139 template<typename ELFT> 140 class ELFDumper : public ObjDumper { 141 public: 142 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer); 143 144 void printFileHeaders() override; 145 void printSections() override; 146 void printRelocations() override; 147 void printDynamicRelocations() override; 148 void printSymbols() override; 149 void printDynamicSymbols() override; 150 void printUnwindInfo() override; 151 152 void printDynamicTable() override; 153 void printNeededLibraries() override; 154 void printProgramHeaders() override; 155 void printSectionAsHex(StringRef StringName) override; 156 void printHashTable() override; 157 void printGnuHashTable() override; 158 void printLoadName() override; 159 void printVersionInfo() override; 160 void printGroupSections() override; 161 162 void printAttributes() override; 163 void printMipsPLTGOT() override; 164 void printMipsABIFlags() override; 165 void printMipsReginfo() override; 166 void printMipsOptions() override; 167 168 void printStackMap() const override; 169 170 void printHashHistogram() override; 171 172 void printCGProfile() override; 173 void printAddrsig() override; 174 175 void printNotes() override; 176 177 void printELFLinkerOptions() override; 178 179 private: 180 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 181 182 TYPEDEF_ELF_TYPES(ELFT) 183 184 DynRegionInfo checkDRI(DynRegionInfo DRI) { 185 if (DRI.Addr < Obj->base() || 186 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 187 error(llvm::object::object_error::parse_failed); 188 return DRI; 189 } 190 191 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 192 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize}); 193 } 194 195 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 196 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 197 } 198 199 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 200 201 void printValue(uint64_t Type, uint64_t Value); 202 203 StringRef getDynamicString(uint64_t Offset) const; 204 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 205 bool &IsDefault) const; 206 void LoadVersionMap() const; 207 void LoadVersionNeeds(const Elf_Shdr *ec) const; 208 void LoadVersionDefs(const Elf_Shdr *sec) const; 209 210 const ELFO *Obj; 211 DynRegionInfo DynRelRegion; 212 DynRegionInfo DynRelaRegion; 213 DynRegionInfo DynRelrRegion; 214 DynRegionInfo DynPLTRelRegion; 215 DynRegionInfo DynSymRegion; 216 DynRegionInfo DynamicTable; 217 StringRef DynamicStringTable; 218 StringRef SOName; 219 const Elf_Hash *HashTable = nullptr; 220 const Elf_GnuHash *GnuHashTable = nullptr; 221 const Elf_Shdr *DotSymtabSec = nullptr; 222 const Elf_Shdr *DotCGProfileSec = nullptr; 223 const Elf_Shdr *DotAddrsigSec = nullptr; 224 StringRef DynSymtabName; 225 ArrayRef<Elf_Word> ShndxTable; 226 227 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 228 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 229 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 230 231 // Records for each version index the corresponding Verdef or Vernaux entry. 232 // This is filled the first time LoadVersionMap() is called. 233 class VersionMapEntry : public PointerIntPair<const void *, 1> { 234 public: 235 // If the integer is 0, this is an Elf_Verdef*. 236 // If the integer is 1, this is an Elf_Vernaux*. 237 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 238 VersionMapEntry(const Elf_Verdef *verdef) 239 : PointerIntPair<const void *, 1>(verdef, 0) {} 240 VersionMapEntry(const Elf_Vernaux *vernaux) 241 : PointerIntPair<const void *, 1>(vernaux, 1) {} 242 243 bool isNull() const { return getPointer() == nullptr; } 244 bool isVerdef() const { return !isNull() && getInt() == 0; } 245 bool isVernaux() const { return !isNull() && getInt() == 1; } 246 const Elf_Verdef *getVerdef() const { 247 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 248 } 249 const Elf_Vernaux *getVernaux() const { 250 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 251 } 252 }; 253 mutable SmallVector<VersionMapEntry, 16> VersionMap; 254 255 public: 256 Elf_Dyn_Range dynamic_table() const { 257 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 258 } 259 260 Elf_Sym_Range dynamic_symbols() const { 261 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 262 } 263 264 Elf_Rel_Range dyn_rels() const; 265 Elf_Rela_Range dyn_relas() const; 266 Elf_Relr_Range dyn_relrs() const; 267 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 268 bool IsDynamic) const; 269 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym, 270 StringRef &SectionName, 271 unsigned &SectionIndex) const; 272 StringRef getStaticSymbolName(uint32_t Index) const; 273 274 void printSymbolsHelper(bool IsDynamic) const; 275 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 276 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; } 277 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; } 278 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 279 StringRef getDynamicStringTable() const { return DynamicStringTable; } 280 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 281 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 282 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; } 283 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 284 const Elf_Hash *getHashTable() const { return HashTable; } 285 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 286 }; 287 288 template <class ELFT> 289 void ELFDumper<ELFT>::printSectionAsHex(StringRef SectionName) { 290 char *StrPtr; 291 long SectionIndex = strtol(SectionName.data(), &StrPtr, 10); 292 const Elf_Shdr *Sec; 293 if (*StrPtr) 294 Sec = unwrapOrError(Obj->getSection(SectionName)); 295 else 296 Sec = unwrapOrError(Obj->getSection((unsigned int)SectionIndex)); 297 298 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec)); 299 const uint8_t *SecContent = 300 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset); 301 302 SectionHexDump(SecName, SecContent, Sec->sh_size); 303 } 304 305 template <class ELFT> 306 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 307 StringRef StrTable, SymtabName; 308 size_t Entries = 0; 309 Elf_Sym_Range Syms(nullptr, nullptr); 310 if (IsDynamic) { 311 StrTable = DynamicStringTable; 312 Syms = dynamic_symbols(); 313 SymtabName = DynSymtabName; 314 if (DynSymRegion.Addr) 315 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 316 } else { 317 if (!DotSymtabSec) 318 return; 319 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 320 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 321 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 322 Entries = DotSymtabSec->getEntityCount(); 323 } 324 if (Syms.begin() == Syms.end()) 325 return; 326 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 327 for (const auto &Sym : Syms) 328 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 329 } 330 331 template <class ELFT> class MipsGOTParser; 332 333 template <typename ELFT> class DumpStyle { 334 public: 335 using Elf_Shdr = typename ELFT::Shdr; 336 using Elf_Sym = typename ELFT::Sym; 337 338 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 339 virtual ~DumpStyle() = default; 340 341 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 342 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 343 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 344 virtual void printSections(const ELFFile<ELFT> *Obj) = 0; 345 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; 346 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; 347 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 348 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, 349 size_t Offset) {} 350 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 351 const Elf_Sym *FirstSym, StringRef StrTable, 352 bool IsDynamic) = 0; 353 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; 354 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 355 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0; 356 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0; 357 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 358 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0; 359 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0; 360 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0; 361 const ELFDumper<ELFT> *dumper() const { return Dumper; } 362 363 private: 364 const ELFDumper<ELFT> *Dumper; 365 }; 366 367 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 368 formatted_raw_ostream OS; 369 370 public: 371 TYPEDEF_ELF_TYPES(ELFT) 372 373 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 374 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 375 376 void printFileHeaders(const ELFO *Obj) override; 377 void printGroupSections(const ELFFile<ELFT> *Obj) override; 378 void printRelocations(const ELFO *Obj) override; 379 void printSections(const ELFO *Obj) override; 380 void printSymbols(const ELFO *Obj) override; 381 void printDynamicSymbols(const ELFO *Obj) override; 382 void printDynamicRelocations(const ELFO *Obj) override; 383 void printSymtabMessage(const ELFO *Obj, StringRef Name, 384 size_t Offset) override; 385 void printProgramHeaders(const ELFO *Obj) override; 386 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 387 void printCGProfile(const ELFFile<ELFT> *Obj) override; 388 void printAddrsig(const ELFFile<ELFT> *Obj) override; 389 void printNotes(const ELFFile<ELFT> *Obj) override; 390 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 391 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 392 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 393 394 private: 395 struct Field { 396 StringRef Str; 397 unsigned Column; 398 399 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 400 Field(unsigned Col) : Str(""), Column(Col) {} 401 }; 402 403 template <typename T, typename TEnum> 404 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 405 for (const auto &EnumItem : EnumValues) 406 if (EnumItem.Value == Value) 407 return EnumItem.AltName; 408 return to_hexString(Value, false); 409 } 410 411 formatted_raw_ostream &printField(struct Field F) { 412 if (F.Column != 0) 413 OS.PadToColumn(F.Column); 414 OS << F.Str; 415 OS.flush(); 416 return OS; 417 } 418 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 419 StringRef StrTable, uint32_t Bucket); 420 void printRelocHeader(unsigned SType); 421 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 422 const Elf_Rela &R, bool IsRela); 423 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 424 StringRef StrTable, bool IsDynamic) override; 425 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 426 const Elf_Sym *FirstSym); 427 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 428 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 429 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 430 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 431 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 432 }; 433 434 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 435 public: 436 TYPEDEF_ELF_TYPES(ELFT) 437 438 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 439 : DumpStyle<ELFT>(Dumper), W(W) {} 440 441 void printFileHeaders(const ELFO *Obj) override; 442 void printGroupSections(const ELFFile<ELFT> *Obj) override; 443 void printRelocations(const ELFO *Obj) override; 444 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 445 void printSections(const ELFO *Obj) override; 446 void printSymbols(const ELFO *Obj) override; 447 void printDynamicSymbols(const ELFO *Obj) override; 448 void printDynamicRelocations(const ELFO *Obj) override; 449 void printProgramHeaders(const ELFO *Obj) override; 450 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 451 void printCGProfile(const ELFFile<ELFT> *Obj) override; 452 void printAddrsig(const ELFFile<ELFT> *Obj) override; 453 void printNotes(const ELFFile<ELFT> *Obj) override; 454 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override; 455 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override; 456 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override; 457 458 private: 459 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 460 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 461 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 462 StringRef StrTable, bool IsDynamic) override; 463 464 ScopedPrinter &W; 465 }; 466 467 } // end anonymous namespace 468 469 namespace llvm { 470 471 template <class ELFT> 472 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj, 473 ScopedPrinter &Writer, 474 std::unique_ptr<ObjDumper> &Result) { 475 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 476 return readobj_error::success; 477 } 478 479 std::error_code createELFDumper(const object::ObjectFile *Obj, 480 ScopedPrinter &Writer, 481 std::unique_ptr<ObjDumper> &Result) { 482 // Little-endian 32-bit 483 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 484 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 485 486 // Big-endian 32-bit 487 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 488 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 489 490 // Little-endian 64-bit 491 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 492 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 493 494 // Big-endian 64-bit 495 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 496 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 497 498 return readobj_error::unsupported_obj_file_format; 499 } 500 501 } // end namespace llvm 502 503 // Iterate through the versions needed section, and place each Elf_Vernaux 504 // in the VersionMap according to its index. 505 template <class ELFT> 506 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 507 unsigned vn_size = sec->sh_size; // Size of section in bytes 508 unsigned vn_count = sec->sh_info; // Number of Verneed entries 509 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 510 const char *sec_end = sec_start + vn_size; 511 // The first Verneed entry is at the start of the section. 512 const char *p = sec_start; 513 for (unsigned i = 0; i < vn_count; i++) { 514 if (p + sizeof(Elf_Verneed) > sec_end) 515 report_fatal_error("Section ended unexpectedly while scanning " 516 "version needed records."); 517 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 518 if (vn->vn_version != ELF::VER_NEED_CURRENT) 519 report_fatal_error("Unexpected verneed version"); 520 // Iterate through the Vernaux entries 521 const char *paux = p + vn->vn_aux; 522 for (unsigned j = 0; j < vn->vn_cnt; j++) { 523 if (paux + sizeof(Elf_Vernaux) > sec_end) 524 report_fatal_error("Section ended unexpected while scanning auxiliary " 525 "version needed records."); 526 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 527 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 528 if (index >= VersionMap.size()) 529 VersionMap.resize(index + 1); 530 VersionMap[index] = VersionMapEntry(vna); 531 paux += vna->vna_next; 532 } 533 p += vn->vn_next; 534 } 535 } 536 537 // Iterate through the version definitions, and place each Elf_Verdef 538 // in the VersionMap according to its index. 539 template <class ELFT> 540 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 541 unsigned vd_size = sec->sh_size; // Size of section in bytes 542 unsigned vd_count = sec->sh_info; // Number of Verdef entries 543 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 544 const char *sec_end = sec_start + vd_size; 545 // The first Verdef entry is at the start of the section. 546 const char *p = sec_start; 547 for (unsigned i = 0; i < vd_count; i++) { 548 if (p + sizeof(Elf_Verdef) > sec_end) 549 report_fatal_error("Section ended unexpectedly while scanning " 550 "version definitions."); 551 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 552 if (vd->vd_version != ELF::VER_DEF_CURRENT) 553 report_fatal_error("Unexpected verdef version"); 554 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 555 if (index >= VersionMap.size()) 556 VersionMap.resize(index + 1); 557 VersionMap[index] = VersionMapEntry(vd); 558 p += vd->vd_next; 559 } 560 } 561 562 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 563 // If there is no dynamic symtab or version table, there is nothing to do. 564 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 565 return; 566 567 // Has the VersionMap already been loaded? 568 if (VersionMap.size() > 0) 569 return; 570 571 // The first two version indexes are reserved. 572 // Index 0 is LOCAL, index 1 is GLOBAL. 573 VersionMap.push_back(VersionMapEntry()); 574 VersionMap.push_back(VersionMapEntry()); 575 576 if (dot_gnu_version_d_sec) 577 LoadVersionDefs(dot_gnu_version_d_sec); 578 579 if (dot_gnu_version_r_sec) 580 LoadVersionNeeds(dot_gnu_version_r_sec); 581 } 582 583 template <typename ELFO, class ELFT> 584 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 585 const typename ELFO::Elf_Shdr *Sec, 586 ScopedPrinter &W) { 587 DictScope SS(W, "Version symbols"); 588 if (!Sec) 589 return; 590 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 591 W.printNumber("Section Name", Name, Sec->sh_name); 592 W.printHex("Address", Sec->sh_addr); 593 W.printHex("Offset", Sec->sh_offset); 594 W.printNumber("Link", Sec->sh_link); 595 596 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 597 StringRef StrTable = Dumper->getDynamicStringTable(); 598 599 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 600 ListScope Syms(W, "Symbols"); 601 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 602 DictScope S(W, "Symbol"); 603 std::string FullSymbolName = 604 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 605 W.printNumber("Version", *P); 606 W.printString("Name", FullSymbolName); 607 P += sizeof(typename ELFO::Elf_Half); 608 } 609 } 610 611 static const EnumEntry<unsigned> SymVersionFlags[] = { 612 {"Base", "BASE", VER_FLG_BASE}, 613 {"Weak", "WEAK", VER_FLG_WEAK}, 614 {"Info", "INFO", VER_FLG_INFO}}; 615 616 template <typename ELFO, class ELFT> 617 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 618 const ELFO *Obj, 619 const typename ELFO::Elf_Shdr *Sec, 620 ScopedPrinter &W) { 621 using VerDef = typename ELFO::Elf_Verdef; 622 using VerdAux = typename ELFO::Elf_Verdaux; 623 624 DictScope SD(W, "SHT_GNU_verdef"); 625 if (!Sec) 626 return; 627 628 // The number of entries in the section SHT_GNU_verdef 629 // is determined by DT_VERDEFNUM tag. 630 unsigned VerDefsNum = 0; 631 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 632 if (Dyn.d_tag == DT_VERDEFNUM) 633 VerDefsNum = Dyn.d_un.d_val; 634 } 635 const uint8_t *SecStartAddress = 636 (const uint8_t *)Obj->base() + Sec->sh_offset; 637 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 638 const uint8_t *P = SecStartAddress; 639 const typename ELFO::Elf_Shdr *StrTab = 640 unwrapOrError(Obj->getSection(Sec->sh_link)); 641 642 while (VerDefsNum--) { 643 if (P + sizeof(VerDef) > SecEndAddress) 644 report_fatal_error("invalid offset in the section"); 645 646 auto *VD = reinterpret_cast<const VerDef *>(P); 647 DictScope Def(W, "Definition"); 648 W.printNumber("Version", VD->vd_version); 649 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 650 W.printNumber("Index", VD->vd_ndx); 651 W.printNumber("Hash", VD->vd_hash); 652 W.printString("Name", 653 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 654 VD->getAux()->vda_name))); 655 if (!VD->vd_cnt) 656 report_fatal_error("at least one definition string must exist"); 657 if (VD->vd_cnt > 2) 658 report_fatal_error("more than one predecessor is not expected"); 659 660 if (VD->vd_cnt == 2) { 661 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 662 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 663 W.printString("Predecessor", 664 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 665 Aux->vda_name))); 666 } 667 668 P += VD->vd_next; 669 } 670 } 671 672 template <typename ELFO, class ELFT> 673 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 674 const ELFO *Obj, 675 const typename ELFO::Elf_Shdr *Sec, 676 ScopedPrinter &W) { 677 using VerNeed = typename ELFO::Elf_Verneed; 678 using VernAux = typename ELFO::Elf_Vernaux; 679 680 DictScope SD(W, "SHT_GNU_verneed"); 681 if (!Sec) 682 return; 683 684 unsigned VerNeedNum = 0; 685 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) 686 if (Dyn.d_tag == DT_VERNEEDNUM) 687 VerNeedNum = Dyn.d_un.d_val; 688 689 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 690 const typename ELFO::Elf_Shdr *StrTab = 691 unwrapOrError(Obj->getSection(Sec->sh_link)); 692 693 const uint8_t *P = SecData; 694 for (unsigned I = 0; I < VerNeedNum; ++I) { 695 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 696 DictScope Entry(W, "Dependency"); 697 W.printNumber("Version", Need->vn_version); 698 W.printNumber("Count", Need->vn_cnt); 699 W.printString("FileName", 700 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 701 Need->vn_file))); 702 703 const uint8_t *PAux = P + Need->vn_aux; 704 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 705 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 706 DictScope Entry(W, "Entry"); 707 W.printNumber("Hash", Aux->vna_hash); 708 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 709 W.printNumber("Index", Aux->vna_other); 710 W.printString("Name", 711 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 712 Aux->vna_name))); 713 PAux += Aux->vna_next; 714 } 715 P += Need->vn_next; 716 } 717 } 718 719 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 720 // Dump version symbol section. 721 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W); 722 723 // Dump version definition section. 724 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W); 725 726 // Dump version dependency section. 727 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W); 728 } 729 730 template <typename ELFT> 731 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 732 const Elf_Sym *symb, 733 bool &IsDefault) const { 734 // This is a dynamic symbol. Look in the GNU symbol version table. 735 if (!dot_gnu_version_sec) { 736 // No version table. 737 IsDefault = false; 738 return StringRef(""); 739 } 740 741 // Determine the position in the symbol table of this entry. 742 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 743 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 744 sizeof(Elf_Sym); 745 746 // Get the corresponding version index entry 747 const Elf_Versym *vs = unwrapOrError( 748 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 749 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 750 751 // Special markers for unversioned symbols. 752 if (version_index == ELF::VER_NDX_LOCAL || 753 version_index == ELF::VER_NDX_GLOBAL) { 754 IsDefault = false; 755 return StringRef(""); 756 } 757 758 // Lookup this symbol in the version table 759 LoadVersionMap(); 760 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 761 reportError("Invalid version entry"); 762 const VersionMapEntry &entry = VersionMap[version_index]; 763 764 // Get the version name string 765 size_t name_offset; 766 if (entry.isVerdef()) { 767 // The first Verdaux entry holds the name. 768 name_offset = entry.getVerdef()->getAux()->vda_name; 769 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 770 } else { 771 name_offset = entry.getVernaux()->vna_name; 772 IsDefault = false; 773 } 774 if (name_offset >= StrTab.size()) 775 reportError("Invalid string offset"); 776 return StringRef(StrTab.data() + name_offset); 777 } 778 779 template <typename ELFT> 780 StringRef ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const { 781 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 782 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 783 if (Index >= Syms.size()) 784 reportError("Invalid symbol index"); 785 const Elf_Sym *Sym = &Syms[Index]; 786 return unwrapOrError(Sym->getName(StrTable)); 787 } 788 789 template <typename ELFT> 790 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 791 StringRef StrTable, 792 bool IsDynamic) const { 793 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); 794 if (!IsDynamic) 795 return SymbolName; 796 797 std::string FullSymbolName(SymbolName); 798 799 bool IsDefault; 800 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 801 FullSymbolName += (IsDefault ? "@@" : "@"); 802 FullSymbolName += Version; 803 return FullSymbolName; 804 } 805 806 template <typename ELFT> 807 void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol, 808 const Elf_Sym *FirstSym, 809 StringRef &SectionName, 810 unsigned &SectionIndex) const { 811 SectionIndex = Symbol->st_shndx; 812 if (Symbol->isUndefined()) 813 SectionName = "Undefined"; 814 else if (Symbol->isProcessorSpecific()) 815 SectionName = "Processor Specific"; 816 else if (Symbol->isOSSpecific()) 817 SectionName = "Operating System Specific"; 818 else if (Symbol->isAbsolute()) 819 SectionName = "Absolute"; 820 else if (Symbol->isCommon()) 821 SectionName = "Common"; 822 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 823 SectionName = "Reserved"; 824 else { 825 if (SectionIndex == SHN_XINDEX) 826 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 827 Symbol, FirstSym, ShndxTable)); 828 const typename ELFT::Shdr *Sec = 829 unwrapOrError(Obj->getSection(SectionIndex)); 830 SectionName = unwrapOrError(Obj->getSectionName(Sec)); 831 } 832 } 833 834 template <class ELFO> 835 static const typename ELFO::Elf_Shdr * 836 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 837 for (const auto &Shdr : unwrapOrError(Obj->sections())) 838 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 839 return &Shdr; 840 return nullptr; 841 } 842 843 template <class ELFO> 844 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 845 StringRef Name) { 846 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 847 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 848 return &Shdr; 849 } 850 return nullptr; 851 } 852 853 static const EnumEntry<unsigned> ElfClass[] = { 854 {"None", "none", ELF::ELFCLASSNONE}, 855 {"32-bit", "ELF32", ELF::ELFCLASS32}, 856 {"64-bit", "ELF64", ELF::ELFCLASS64}, 857 }; 858 859 static const EnumEntry<unsigned> ElfDataEncoding[] = { 860 {"None", "none", ELF::ELFDATANONE}, 861 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 862 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 863 }; 864 865 static const EnumEntry<unsigned> ElfObjectFileType[] = { 866 {"None", "NONE (none)", ELF::ET_NONE}, 867 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 868 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 869 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 870 {"Core", "CORE (Core file)", ELF::ET_CORE}, 871 }; 872 873 static const EnumEntry<unsigned> ElfOSABI[] = { 874 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 875 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 876 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 877 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 878 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 879 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 880 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 881 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 882 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 883 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 884 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 885 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 886 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 887 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 888 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 889 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 890 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 891 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 892 }; 893 894 static const EnumEntry<unsigned> AMDGPUElfOSABI[] = { 895 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA}, 896 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL}, 897 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D} 898 }; 899 900 static const EnumEntry<unsigned> ARMElfOSABI[] = { 901 {"ARM", "ARM", ELF::ELFOSABI_ARM} 902 }; 903 904 static const EnumEntry<unsigned> C6000ElfOSABI[] = { 905 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 906 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX} 907 }; 908 909 static const EnumEntry<unsigned> ElfMachineType[] = { 910 ENUM_ENT(EM_NONE, "None"), 911 ENUM_ENT(EM_M32, "WE32100"), 912 ENUM_ENT(EM_SPARC, "Sparc"), 913 ENUM_ENT(EM_386, "Intel 80386"), 914 ENUM_ENT(EM_68K, "MC68000"), 915 ENUM_ENT(EM_88K, "MC88000"), 916 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 917 ENUM_ENT(EM_860, "Intel 80860"), 918 ENUM_ENT(EM_MIPS, "MIPS R3000"), 919 ENUM_ENT(EM_S370, "IBM System/370"), 920 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 921 ENUM_ENT(EM_PARISC, "HPPA"), 922 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 923 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 924 ENUM_ENT(EM_960, "Intel 80960"), 925 ENUM_ENT(EM_PPC, "PowerPC"), 926 ENUM_ENT(EM_PPC64, "PowerPC64"), 927 ENUM_ENT(EM_S390, "IBM S/390"), 928 ENUM_ENT(EM_SPU, "SPU"), 929 ENUM_ENT(EM_V800, "NEC V800 series"), 930 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 931 ENUM_ENT(EM_RH32, "TRW RH-32"), 932 ENUM_ENT(EM_RCE, "Motorola RCE"), 933 ENUM_ENT(EM_ARM, "ARM"), 934 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 935 ENUM_ENT(EM_SH, "Hitachi SH"), 936 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 937 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 938 ENUM_ENT(EM_ARC, "ARC"), 939 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 940 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 941 ENUM_ENT(EM_H8S, "Hitachi H8S"), 942 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 943 ENUM_ENT(EM_IA_64, "Intel IA-64"), 944 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 945 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 946 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 947 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 948 ENUM_ENT(EM_PCP, "Siemens PCP"), 949 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 950 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 951 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 952 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 953 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 954 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 955 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 956 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 957 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 958 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 959 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 960 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 961 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 962 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 963 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 964 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 965 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 966 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 967 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 968 ENUM_ENT(EM_VAX, "Digital VAX"), 969 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 970 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 971 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 972 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 973 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 974 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 975 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 976 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 977 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 978 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 979 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 980 ENUM_ENT(EM_V850, "NEC v850"), 981 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 982 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 983 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 984 ENUM_ENT(EM_PJ, "picoJava"), 985 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 986 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 987 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 988 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 989 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 990 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 991 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 992 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 993 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 994 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 995 ENUM_ENT(EM_MAX, "MAX Processor"), 996 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 997 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 998 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 999 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 1000 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 1001 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 1002 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 1003 ENUM_ENT(EM_UNICORE, "Unicore"), 1004 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 1005 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 1006 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 1007 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 1008 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 1009 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 1010 ENUM_ENT(EM_M16C, "Renesas M16C"), 1011 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 1012 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 1013 ENUM_ENT(EM_M32C, "Renesas M32C"), 1014 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 1015 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 1016 ENUM_ENT(EM_SHARC, "EM_SHARC"), 1017 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 1018 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 1019 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 1020 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 1021 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 1022 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 1023 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 1024 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 1025 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 1026 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 1027 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 1028 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 1029 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 1030 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 1031 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 1032 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 1033 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 1034 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 1035 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 1036 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 1037 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 1038 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 1039 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 1040 ENUM_ENT(EM_RX, "Renesas RX"), 1041 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 1042 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 1043 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 1044 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 1045 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 1046 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 1047 ENUM_ENT(EM_L10M, "EM_L10M"), 1048 ENUM_ENT(EM_K10M, "EM_K10M"), 1049 ENUM_ENT(EM_AARCH64, "AArch64"), 1050 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"), 1051 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 1052 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 1053 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 1054 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 1055 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 1056 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 1057 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 1058 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 1059 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 1060 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 1061 ENUM_ENT(EM_RL78, "Renesas RL78"), 1062 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 1063 ENUM_ENT(EM_78KOR, "EM_78KOR"), 1064 ENUM_ENT(EM_56800EX, "EM_56800EX"), 1065 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 1066 ENUM_ENT(EM_RISCV, "RISC-V"), 1067 ENUM_ENT(EM_LANAI, "EM_LANAI"), 1068 ENUM_ENT(EM_BPF, "EM_BPF"), 1069 }; 1070 1071 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 1072 {"Local", "LOCAL", ELF::STB_LOCAL}, 1073 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 1074 {"Weak", "WEAK", ELF::STB_WEAK}, 1075 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 1076 1077 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 1078 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1079 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1080 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1081 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1082 1083 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 1084 {"None", "NOTYPE", ELF::STT_NOTYPE}, 1085 {"Object", "OBJECT", ELF::STT_OBJECT}, 1086 {"Function", "FUNC", ELF::STT_FUNC}, 1087 {"Section", "SECTION", ELF::STT_SECTION}, 1088 {"File", "FILE", ELF::STT_FILE}, 1089 {"Common", "COMMON", ELF::STT_COMMON}, 1090 {"TLS", "TLS", ELF::STT_TLS}, 1091 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 1092 1093 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1094 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1095 }; 1096 1097 static const char *getGroupType(uint32_t Flag) { 1098 if (Flag & ELF::GRP_COMDAT) 1099 return "COMDAT"; 1100 else 1101 return "(unknown)"; 1102 } 1103 1104 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1105 ENUM_ENT(SHF_WRITE, "W"), 1106 ENUM_ENT(SHF_ALLOC, "A"), 1107 ENUM_ENT(SHF_EXCLUDE, "E"), 1108 ENUM_ENT(SHF_EXECINSTR, "X"), 1109 ENUM_ENT(SHF_MERGE, "M"), 1110 ENUM_ENT(SHF_STRINGS, "S"), 1111 ENUM_ENT(SHF_INFO_LINK, "I"), 1112 ENUM_ENT(SHF_LINK_ORDER, "L"), 1113 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1114 ENUM_ENT(SHF_GROUP, "G"), 1115 ENUM_ENT(SHF_TLS, "T"), 1116 ENUM_ENT(SHF_MASKOS, "o"), 1117 ENUM_ENT(SHF_MASKPROC, "p"), 1118 ENUM_ENT_1(SHF_COMPRESSED), 1119 }; 1120 1121 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1122 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1123 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1124 }; 1125 1126 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1127 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1128 }; 1129 1130 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1131 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1132 }; 1133 1134 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1135 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1136 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1137 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1138 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1139 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1140 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1141 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1142 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1143 }; 1144 1145 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1146 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1147 }; 1148 1149 static std::string getGNUFlags(uint64_t Flags) { 1150 std::string Str; 1151 for (auto Entry : ElfSectionFlags) { 1152 uint64_t Flag = Entry.Value & Flags; 1153 Flags &= ~Entry.Value; 1154 switch (Flag) { 1155 case ELF::SHF_WRITE: 1156 case ELF::SHF_ALLOC: 1157 case ELF::SHF_EXECINSTR: 1158 case ELF::SHF_MERGE: 1159 case ELF::SHF_STRINGS: 1160 case ELF::SHF_INFO_LINK: 1161 case ELF::SHF_LINK_ORDER: 1162 case ELF::SHF_OS_NONCONFORMING: 1163 case ELF::SHF_GROUP: 1164 case ELF::SHF_TLS: 1165 case ELF::SHF_EXCLUDE: 1166 Str += Entry.AltName; 1167 break; 1168 default: 1169 if (Flag & ELF::SHF_MASKOS) 1170 Str += "o"; 1171 else if (Flag & ELF::SHF_MASKPROC) 1172 Str += "p"; 1173 else if (Flag) 1174 Str += "x"; 1175 } 1176 } 1177 return Str; 1178 } 1179 1180 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1181 // Check potentially overlapped processor-specific 1182 // program header type. 1183 switch (Arch) { 1184 case ELF::EM_ARM: 1185 switch (Type) { 1186 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1187 } 1188 case ELF::EM_MIPS: 1189 case ELF::EM_MIPS_RS3_LE: 1190 switch (Type) { 1191 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1192 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1193 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1194 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1195 } 1196 } 1197 1198 switch (Type) { 1199 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1200 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1201 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1202 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1203 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1204 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1205 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1206 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1207 1208 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1209 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1210 1211 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1212 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1213 1214 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1215 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1216 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1217 1218 default: return ""; 1219 } 1220 } 1221 1222 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1223 switch (Type) { 1224 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1225 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1226 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1227 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1228 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1229 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1230 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1231 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1232 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1233 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1234 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1235 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1236 default: 1237 // All machine specific PT_* types 1238 switch (Arch) { 1239 case ELF::EM_ARM: 1240 if (Type == ELF::PT_ARM_EXIDX) 1241 return "EXIDX"; 1242 return ""; 1243 case ELF::EM_MIPS: 1244 case ELF::EM_MIPS_RS3_LE: 1245 switch (Type) { 1246 case PT_MIPS_REGINFO: 1247 return "REGINFO"; 1248 case PT_MIPS_RTPROC: 1249 return "RTPROC"; 1250 case PT_MIPS_OPTIONS: 1251 return "OPTIONS"; 1252 case PT_MIPS_ABIFLAGS: 1253 return "ABIFLAGS"; 1254 } 1255 return ""; 1256 } 1257 } 1258 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1259 } 1260 1261 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1262 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1263 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1264 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1265 }; 1266 1267 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1268 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER), 1269 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC), 1270 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC), 1271 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2), 1272 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE), 1273 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64), 1274 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008), 1275 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32), 1276 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64), 1277 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32), 1278 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64), 1279 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900), 1280 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010), 1281 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100), 1282 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650), 1283 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120), 1284 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111), 1285 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1), 1286 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON), 1287 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR), 1288 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2), 1289 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3), 1290 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400), 1291 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900), 1292 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500), 1293 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000), 1294 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E), 1295 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F), 1296 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A), 1297 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS), 1298 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16), 1299 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX), 1300 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1), 1301 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2), 1302 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3), 1303 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4), 1304 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5), 1305 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32), 1306 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64), 1307 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2), 1308 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2), 1309 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6), 1310 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6) 1311 }; 1312 1313 static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = { 1314 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE), 1315 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600), 1316 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630), 1317 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880), 1318 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670), 1319 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710), 1320 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730), 1321 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770), 1322 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR), 1323 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS), 1324 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER), 1325 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD), 1326 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO), 1327 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS), 1328 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS), 1329 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN), 1330 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS), 1331 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600), 1332 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601), 1333 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700), 1334 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701), 1335 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702), 1336 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703), 1337 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704), 1338 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801), 1339 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802), 1340 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803), 1341 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810), 1342 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900), 1343 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902), 1344 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904), 1345 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906), 1346 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK) 1347 }; 1348 1349 static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = { 1350 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVC), 1351 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_SINGLE), 1352 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_DOUBLE), 1353 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_FLOAT_ABI_QUAD), 1354 LLVM_READOBJ_ENUM_ENT(ELF, EF_RISCV_RVE) 1355 }; 1356 1357 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1358 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1359 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1360 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1361 }; 1362 1363 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1364 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1365 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1366 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1367 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1368 }; 1369 1370 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1371 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1372 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1373 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1374 }; 1375 1376 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1377 switch (Odk) { 1378 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1379 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1380 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1381 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1382 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1383 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1384 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1385 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1386 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1387 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1388 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1389 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1390 default: 1391 return "Unknown"; 1392 } 1393 } 1394 1395 template <typename ELFT> 1396 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer) 1397 : ObjDumper(Writer), Obj(Obj) { 1398 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1399 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1400 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1401 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1402 continue; 1403 } 1404 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1405 continue; 1406 LoadSegments.push_back(&Phdr); 1407 } 1408 1409 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1410 switch (Sec.sh_type) { 1411 case ELF::SHT_SYMTAB: 1412 if (DotSymtabSec != nullptr) 1413 reportError("Multiple SHT_SYMTAB"); 1414 DotSymtabSec = &Sec; 1415 break; 1416 case ELF::SHT_DYNSYM: 1417 if (DynSymRegion.Size) 1418 reportError("Multiple SHT_DYNSYM"); 1419 DynSymRegion = createDRIFrom(&Sec); 1420 // This is only used (if Elf_Shdr present)for naming section in GNU style 1421 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1422 DynamicStringTable = unwrapOrError(Obj->getStringTableForSymtab(Sec)); 1423 break; 1424 case ELF::SHT_SYMTAB_SHNDX: 1425 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1426 break; 1427 case ELF::SHT_GNU_versym: 1428 if (dot_gnu_version_sec != nullptr) 1429 reportError("Multiple SHT_GNU_versym"); 1430 dot_gnu_version_sec = &Sec; 1431 break; 1432 case ELF::SHT_GNU_verdef: 1433 if (dot_gnu_version_d_sec != nullptr) 1434 reportError("Multiple SHT_GNU_verdef"); 1435 dot_gnu_version_d_sec = &Sec; 1436 break; 1437 case ELF::SHT_GNU_verneed: 1438 if (dot_gnu_version_r_sec != nullptr) 1439 reportError("Multiple SHT_GNU_verneed"); 1440 dot_gnu_version_r_sec = &Sec; 1441 break; 1442 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE: 1443 if (DotCGProfileSec != nullptr) 1444 reportError("Multiple .note.llvm.cgprofile"); 1445 DotCGProfileSec = &Sec; 1446 break; 1447 case ELF::SHT_LLVM_ADDRSIG: 1448 if (DotAddrsigSec != nullptr) 1449 reportError("Multiple .llvm_addrsig"); 1450 DotAddrsigSec = &Sec; 1451 break; 1452 } 1453 } 1454 1455 parseDynamicTable(LoadSegments); 1456 1457 if (opts::Output == opts::GNU) 1458 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1459 else 1460 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1461 } 1462 1463 template <typename ELFT> 1464 void ELFDumper<ELFT>::parseDynamicTable( 1465 ArrayRef<const Elf_Phdr *> LoadSegments) { 1466 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1467 const Elf_Phdr *const *I = 1468 std::upper_bound(LoadSegments.begin(), LoadSegments.end(), VAddr, 1469 [](uint64_t VAddr, const Elf_Phdr_Impl<ELFT> *Phdr) { 1470 return VAddr < Phdr->p_vaddr; 1471 }); 1472 if (I == LoadSegments.begin()) 1473 report_fatal_error("Virtual address is not in any segment"); 1474 --I; 1475 const Elf_Phdr &Phdr = **I; 1476 uint64_t Delta = VAddr - Phdr.p_vaddr; 1477 if (Delta >= Phdr.p_filesz) 1478 report_fatal_error("Virtual address is not in any segment"); 1479 return Obj->base() + Phdr.p_offset + Delta; 1480 }; 1481 1482 uint64_t SONameOffset = 0; 1483 const char *StringTableBegin = nullptr; 1484 uint64_t StringTableSize = 0; 1485 for (const Elf_Dyn &Dyn : dynamic_table()) { 1486 switch (Dyn.d_tag) { 1487 case ELF::DT_HASH: 1488 HashTable = 1489 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1490 break; 1491 case ELF::DT_GNU_HASH: 1492 GnuHashTable = 1493 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1494 break; 1495 case ELF::DT_STRTAB: 1496 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1497 break; 1498 case ELF::DT_STRSZ: 1499 StringTableSize = Dyn.getVal(); 1500 break; 1501 case ELF::DT_SYMTAB: 1502 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1503 DynSymRegion.EntSize = sizeof(Elf_Sym); 1504 break; 1505 case ELF::DT_RELA: 1506 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1507 break; 1508 case ELF::DT_RELASZ: 1509 DynRelaRegion.Size = Dyn.getVal(); 1510 break; 1511 case ELF::DT_RELAENT: 1512 DynRelaRegion.EntSize = Dyn.getVal(); 1513 break; 1514 case ELF::DT_SONAME: 1515 SONameOffset = Dyn.getVal(); 1516 break; 1517 case ELF::DT_REL: 1518 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1519 break; 1520 case ELF::DT_RELSZ: 1521 DynRelRegion.Size = Dyn.getVal(); 1522 break; 1523 case ELF::DT_RELENT: 1524 DynRelRegion.EntSize = Dyn.getVal(); 1525 break; 1526 case ELF::DT_RELR: 1527 case ELF::DT_ANDROID_RELR: 1528 DynRelrRegion.Addr = toMappedAddr(Dyn.getPtr()); 1529 break; 1530 case ELF::DT_RELRSZ: 1531 case ELF::DT_ANDROID_RELRSZ: 1532 DynRelrRegion.Size = Dyn.getVal(); 1533 break; 1534 case ELF::DT_RELRENT: 1535 case ELF::DT_ANDROID_RELRENT: 1536 DynRelrRegion.EntSize = Dyn.getVal(); 1537 break; 1538 case ELF::DT_PLTREL: 1539 if (Dyn.getVal() == DT_REL) 1540 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1541 else if (Dyn.getVal() == DT_RELA) 1542 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1543 else 1544 reportError(Twine("unknown DT_PLTREL value of ") + 1545 Twine((uint64_t)Dyn.getVal())); 1546 break; 1547 case ELF::DT_JMPREL: 1548 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1549 break; 1550 case ELF::DT_PLTRELSZ: 1551 DynPLTRelRegion.Size = Dyn.getVal(); 1552 break; 1553 } 1554 } 1555 if (StringTableBegin) 1556 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1557 if (SONameOffset) 1558 SOName = getDynamicString(SONameOffset); 1559 } 1560 1561 template <typename ELFT> 1562 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1563 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1564 } 1565 1566 template <typename ELFT> 1567 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1568 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1569 } 1570 1571 template <typename ELFT> 1572 typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const { 1573 return DynRelrRegion.getAsArrayRef<Elf_Relr>(); 1574 } 1575 1576 template<class ELFT> 1577 void ELFDumper<ELFT>::printFileHeaders() { 1578 ELFDumperStyle->printFileHeaders(Obj); 1579 } 1580 1581 template<class ELFT> 1582 void ELFDumper<ELFT>::printSections() { 1583 ELFDumperStyle->printSections(Obj); 1584 } 1585 1586 template<class ELFT> 1587 void ELFDumper<ELFT>::printRelocations() { 1588 ELFDumperStyle->printRelocations(Obj); 1589 } 1590 1591 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { 1592 ELFDumperStyle->printProgramHeaders(Obj); 1593 } 1594 1595 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1596 ELFDumperStyle->printDynamicRelocations(Obj); 1597 } 1598 1599 template<class ELFT> 1600 void ELFDumper<ELFT>::printSymbols() { 1601 ELFDumperStyle->printSymbols(Obj); 1602 } 1603 1604 template<class ELFT> 1605 void ELFDumper<ELFT>::printDynamicSymbols() { 1606 ELFDumperStyle->printDynamicSymbols(Obj); 1607 } 1608 1609 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1610 ELFDumperStyle->printHashHistogram(Obj); 1611 } 1612 1613 template <class ELFT> void ELFDumper<ELFT>::printCGProfile() { 1614 ELFDumperStyle->printCGProfile(Obj); 1615 } 1616 1617 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1618 ELFDumperStyle->printNotes(Obj); 1619 } 1620 1621 template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() { 1622 ELFDumperStyle->printELFLinkerOptions(Obj); 1623 } 1624 1625 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1626 #define DYNAMIC_TAG(n, v) 1627 switch (Arch) { 1628 case EM_HEXAGON: 1629 switch (Type) { 1630 #define HEXAGON_DYNAMIC_TAG(name, value) \ 1631 case DT_##name: \ 1632 return #name; 1633 #include "llvm/BinaryFormat/DynamicTags.def" 1634 #undef HEXAGON_DYNAMIC_TAG 1635 } 1636 1637 case EM_MIPS: 1638 switch (Type) { 1639 #define MIPS_DYNAMIC_TAG(name, value) \ 1640 case DT_##name: \ 1641 return #name; 1642 #include "llvm/BinaryFormat/DynamicTags.def" 1643 #undef MIPS_DYNAMIC_TAG 1644 } 1645 1646 case EM_PPC64: 1647 switch(Type) { 1648 #define PPC64_DYNAMIC_TAG(name, value) \ 1649 case DT_##name: \ 1650 return #name; 1651 #include "llvm/BinaryFormat/DynamicTags.def" 1652 #undef PPC64_DYNAMIC_TAG 1653 } 1654 } 1655 #undef DYNAMIC_TAG 1656 switch (Type) { 1657 // Now handle all dynamic tags except the architecture specific ones 1658 #define MIPS_DYNAMIC_TAG(name, value) 1659 #define HEXAGON_DYNAMIC_TAG(name, value) 1660 #define PPC64_DYNAMIC_TAG(name, value) 1661 // Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc. 1662 #define DYNAMIC_TAG_MARKER(name, value) 1663 #define DYNAMIC_TAG(name, value) \ 1664 case DT_##name: \ 1665 return #name; 1666 #include "llvm/BinaryFormat/DynamicTags.def" 1667 #undef DYNAMIC_TAG 1668 #undef MIPS_DYNAMIC_TAG 1669 #undef HEXAGON_DYNAMIC_TAG 1670 #undef PPC64_DYNAMIC_TAG 1671 #undef DYNAMIC_TAG_MARKER 1672 default: return "unknown"; 1673 } 1674 } 1675 1676 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1677 { #enum, prefix##_##enum } 1678 1679 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1680 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1681 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1682 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1683 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1684 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1685 }; 1686 1687 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1688 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1689 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1690 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1691 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1692 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1693 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1694 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1695 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1696 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1697 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1698 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1699 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1700 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1701 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1702 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1703 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1704 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1705 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1706 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1707 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1708 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1709 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1710 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1711 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1712 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1713 }; 1714 1715 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1716 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1717 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1718 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1719 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1720 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1721 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1722 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1723 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1724 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1725 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1726 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1727 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1728 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1729 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1730 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1731 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1732 }; 1733 1734 #undef LLVM_READOBJ_DT_FLAG_ENT 1735 1736 template <typename T, typename TFlag> 1737 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1738 using FlagEntry = EnumEntry<TFlag>; 1739 using FlagVector = SmallVector<FlagEntry, 10>; 1740 FlagVector SetFlags; 1741 1742 for (const auto &Flag : Flags) { 1743 if (Flag.Value == 0) 1744 continue; 1745 1746 if ((Value & Flag.Value) == Flag.Value) 1747 SetFlags.push_back(Flag); 1748 } 1749 1750 for (const auto &Flag : SetFlags) { 1751 OS << Flag.Name << " "; 1752 } 1753 } 1754 1755 template <class ELFT> 1756 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1757 if (Value >= DynamicStringTable.size()) 1758 reportError("Invalid dynamic string table reference"); 1759 return StringRef(DynamicStringTable.data() + Value); 1760 } 1761 1762 static void printLibrary(raw_ostream &OS, const Twine &Tag, const Twine &Name) { 1763 OS << Tag << ": [" << Name << "]"; 1764 } 1765 1766 template <class ELFT> 1767 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1768 raw_ostream &OS = W.getOStream(); 1769 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1770 switch (Type) { 1771 case DT_PLTREL: 1772 if (Value == DT_REL) { 1773 OS << "REL"; 1774 break; 1775 } else if (Value == DT_RELA) { 1776 OS << "RELA"; 1777 break; 1778 } 1779 LLVM_FALLTHROUGH; 1780 case DT_PLTGOT: 1781 case DT_HASH: 1782 case DT_STRTAB: 1783 case DT_SYMTAB: 1784 case DT_RELA: 1785 case DT_INIT: 1786 case DT_FINI: 1787 case DT_REL: 1788 case DT_JMPREL: 1789 case DT_INIT_ARRAY: 1790 case DT_FINI_ARRAY: 1791 case DT_PREINIT_ARRAY: 1792 case DT_DEBUG: 1793 case DT_VERDEF: 1794 case DT_VERNEED: 1795 case DT_VERSYM: 1796 case DT_GNU_HASH: 1797 case DT_NULL: 1798 case DT_MIPS_BASE_ADDRESS: 1799 case DT_MIPS_GOTSYM: 1800 case DT_MIPS_RLD_MAP: 1801 case DT_MIPS_RLD_MAP_REL: 1802 case DT_MIPS_PLTGOT: 1803 case DT_MIPS_OPTIONS: 1804 OS << format(ConvChar, Value); 1805 break; 1806 case DT_RELACOUNT: 1807 case DT_RELCOUNT: 1808 case DT_VERDEFNUM: 1809 case DT_VERNEEDNUM: 1810 case DT_MIPS_RLD_VERSION: 1811 case DT_MIPS_LOCAL_GOTNO: 1812 case DT_MIPS_SYMTABNO: 1813 case DT_MIPS_UNREFEXTNO: 1814 OS << Value; 1815 break; 1816 case DT_PLTRELSZ: 1817 case DT_RELASZ: 1818 case DT_RELAENT: 1819 case DT_STRSZ: 1820 case DT_SYMENT: 1821 case DT_RELSZ: 1822 case DT_RELENT: 1823 case DT_INIT_ARRAYSZ: 1824 case DT_FINI_ARRAYSZ: 1825 case DT_PREINIT_ARRAYSZ: 1826 case DT_ANDROID_RELSZ: 1827 case DT_ANDROID_RELASZ: 1828 OS << Value << " (bytes)"; 1829 break; 1830 case DT_NEEDED: 1831 printLibrary(OS, "Shared library", getDynamicString(Value)); 1832 break; 1833 case DT_SONAME: 1834 printLibrary(OS, "Library soname", getDynamicString(Value)); 1835 break; 1836 case DT_AUXILIARY: 1837 printLibrary(OS, "Auxiliary library", getDynamicString(Value)); 1838 break; 1839 case DT_FILTER: 1840 printLibrary(OS, "Filter library", getDynamicString(Value)); 1841 break; 1842 case DT_RPATH: 1843 case DT_RUNPATH: 1844 OS << getDynamicString(Value); 1845 break; 1846 case DT_MIPS_FLAGS: 1847 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1848 break; 1849 case DT_FLAGS: 1850 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1851 break; 1852 case DT_FLAGS_1: 1853 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1854 break; 1855 default: 1856 OS << format(ConvChar, Value); 1857 break; 1858 } 1859 } 1860 1861 template<class ELFT> 1862 void ELFDumper<ELFT>::printUnwindInfo() { 1863 const unsigned Machine = Obj->getHeader()->e_machine; 1864 if (Machine == EM_386 || Machine == EM_X86_64) { 1865 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, Obj); 1866 return Ctx.printUnwindInformation(); 1867 } 1868 W.startLine() << "UnwindInfo not implemented.\n"; 1869 } 1870 1871 namespace { 1872 1873 template <> void ELFDumper<ELF32LE>::printUnwindInfo() { 1874 const unsigned Machine = Obj->getHeader()->e_machine; 1875 if (Machine == EM_ARM) { 1876 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec); 1877 return Ctx.PrintUnwindInformation(); 1878 } 1879 W.startLine() << "UnwindInfo not implemented.\n"; 1880 } 1881 1882 } // end anonymous namespace 1883 1884 template<class ELFT> 1885 void ELFDumper<ELFT>::printDynamicTable() { 1886 auto I = dynamic_table().begin(); 1887 auto E = dynamic_table().end(); 1888 1889 if (I == E) 1890 return; 1891 1892 --E; 1893 while (I != E && E->getTag() == ELF::DT_NULL) 1894 --E; 1895 if (E->getTag() != ELF::DT_NULL) 1896 ++E; 1897 ++E; 1898 1899 ptrdiff_t Total = std::distance(I, E); 1900 if (Total == 0) 1901 return; 1902 1903 raw_ostream &OS = W.getOStream(); 1904 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1905 1906 bool Is64 = ELFT::Is64Bits; 1907 1908 W.startLine() 1909 << " Tag" << (Is64 ? " " : " ") << "Type" 1910 << " " << "Name/Value\n"; 1911 while (I != E) { 1912 const Elf_Dyn &Entry = *I; 1913 uintX_t Tag = Entry.getTag(); 1914 ++I; 1915 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1916 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag)); 1917 printValue(Tag, Entry.getVal()); 1918 OS << "\n"; 1919 } 1920 1921 W.startLine() << "]\n"; 1922 } 1923 1924 template<class ELFT> 1925 void ELFDumper<ELFT>::printNeededLibraries() { 1926 ListScope D(W, "NeededLibraries"); 1927 1928 using LibsTy = std::vector<StringRef>; 1929 LibsTy Libs; 1930 1931 for (const auto &Entry : dynamic_table()) 1932 if (Entry.d_tag == ELF::DT_NEEDED) 1933 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1934 1935 std::stable_sort(Libs.begin(), Libs.end()); 1936 1937 for (const auto &L : Libs) 1938 W.startLine() << L << "\n"; 1939 } 1940 1941 1942 template <typename ELFT> 1943 void ELFDumper<ELFT>::printHashTable() { 1944 DictScope D(W, "HashTable"); 1945 if (!HashTable) 1946 return; 1947 W.printNumber("Num Buckets", HashTable->nbucket); 1948 W.printNumber("Num Chains", HashTable->nchain); 1949 W.printList("Buckets", HashTable->buckets()); 1950 W.printList("Chains", HashTable->chains()); 1951 } 1952 1953 template <typename ELFT> 1954 void ELFDumper<ELFT>::printGnuHashTable() { 1955 DictScope D(W, "GnuHashTable"); 1956 if (!GnuHashTable) 1957 return; 1958 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1959 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1960 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1961 W.printNumber("Shift Count", GnuHashTable->shift2); 1962 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1963 W.printList("Buckets", GnuHashTable->buckets()); 1964 Elf_Sym_Range Syms = dynamic_symbols(); 1965 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1966 if (!NumSyms) 1967 reportError("No dynamic symbol section"); 1968 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1969 } 1970 1971 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1972 W.printString("LoadName", SOName); 1973 } 1974 1975 template <class ELFT> 1976 void ELFDumper<ELFT>::printAttributes() { 1977 W.startLine() << "Attributes not implemented.\n"; 1978 } 1979 1980 namespace { 1981 1982 template <> void ELFDumper<ELF32LE>::printAttributes() { 1983 if (Obj->getHeader()->e_machine != EM_ARM) { 1984 W.startLine() << "Attributes not implemented.\n"; 1985 return; 1986 } 1987 1988 DictScope BA(W, "BuildAttributes"); 1989 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1990 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1991 continue; 1992 1993 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1994 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1995 errs() << "unrecognised FormatVersion: 0x" 1996 << Twine::utohexstr(Contents[0]) << '\n'; 1997 continue; 1998 } 1999 2000 W.printHex("FormatVersion", Contents[0]); 2001 if (Contents.size() == 1) 2002 continue; 2003 2004 ARMAttributeParser(&W).Parse(Contents, true); 2005 } 2006 } 2007 2008 template <class ELFT> class MipsGOTParser { 2009 public: 2010 TYPEDEF_ELF_TYPES(ELFT) 2011 using Entry = typename ELFO::Elf_Addr; 2012 using Entries = ArrayRef<Entry>; 2013 2014 const bool IsStatic; 2015 const ELFO * const Obj; 2016 2017 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms); 2018 2019 bool hasGot() const { return !GotEntries.empty(); } 2020 bool hasPlt() const { return !PltEntries.empty(); } 2021 2022 uint64_t getGp() const; 2023 2024 const Entry *getGotLazyResolver() const; 2025 const Entry *getGotModulePointer() const; 2026 const Entry *getPltLazyResolver() const; 2027 const Entry *getPltModulePointer() const; 2028 2029 Entries getLocalEntries() const; 2030 Entries getGlobalEntries() const; 2031 Entries getOtherEntries() const; 2032 Entries getPltEntries() const; 2033 2034 uint64_t getGotAddress(const Entry * E) const; 2035 int64_t getGotOffset(const Entry * E) const; 2036 const Elf_Sym *getGotSym(const Entry *E) const; 2037 2038 uint64_t getPltAddress(const Entry * E) const; 2039 const Elf_Sym *getPltSym(const Entry *E) const; 2040 2041 StringRef getPltStrTable() const { return PltStrTable; } 2042 2043 private: 2044 const Elf_Shdr *GotSec; 2045 size_t LocalNum; 2046 size_t GlobalNum; 2047 2048 const Elf_Shdr *PltSec; 2049 const Elf_Shdr *PltRelSec; 2050 const Elf_Shdr *PltSymTable; 2051 Elf_Sym_Range GotDynSyms; 2052 StringRef PltStrTable; 2053 2054 Entries GotEntries; 2055 Entries PltEntries; 2056 }; 2057 2058 } // end anonymous namespace 2059 2060 template <class ELFT> 2061 MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, 2062 Elf_Sym_Range DynSyms) 2063 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0), 2064 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) { 2065 // See "Global Offset Table" in Chapter 5 in the following document 2066 // for detailed GOT description. 2067 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 2068 2069 // Find static GOT secton. 2070 if (IsStatic) { 2071 GotSec = findSectionByName(*Obj, ".got"); 2072 if (!GotSec) 2073 reportError("Cannot find .got section"); 2074 2075 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2076 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2077 Content.size() / sizeof(Entry)); 2078 LocalNum = GotEntries.size(); 2079 return; 2080 } 2081 2082 // Lookup dynamic table tags which define GOT/PLT layouts. 2083 Optional<uint64_t> DtPltGot; 2084 Optional<uint64_t> DtLocalGotNum; 2085 Optional<uint64_t> DtGotSym; 2086 Optional<uint64_t> DtMipsPltGot; 2087 Optional<uint64_t> DtJmpRel; 2088 for (const auto &Entry : DynTable) { 2089 switch (Entry.getTag()) { 2090 case ELF::DT_PLTGOT: 2091 DtPltGot = Entry.getVal(); 2092 break; 2093 case ELF::DT_MIPS_LOCAL_GOTNO: 2094 DtLocalGotNum = Entry.getVal(); 2095 break; 2096 case ELF::DT_MIPS_GOTSYM: 2097 DtGotSym = Entry.getVal(); 2098 break; 2099 case ELF::DT_MIPS_PLTGOT: 2100 DtMipsPltGot = Entry.getVal(); 2101 break; 2102 case ELF::DT_JMPREL: 2103 DtJmpRel = Entry.getVal(); 2104 break; 2105 } 2106 } 2107 2108 // Find dynamic GOT section. 2109 if (DtPltGot || DtLocalGotNum || DtGotSym) { 2110 if (!DtPltGot) 2111 report_fatal_error("Cannot find PLTGOT dynamic table tag."); 2112 if (!DtLocalGotNum) 2113 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag."); 2114 if (!DtGotSym) 2115 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag."); 2116 2117 size_t DynSymTotal = DynSyms.size(); 2118 if (*DtGotSym > DynSymTotal) 2119 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols"); 2120 2121 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot); 2122 if (!GotSec) 2123 reportError("There is no not empty GOT section at 0x" + 2124 Twine::utohexstr(*DtPltGot)); 2125 2126 LocalNum = *DtLocalGotNum; 2127 GlobalNum = DynSymTotal - *DtGotSym; 2128 2129 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec)); 2130 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()), 2131 Content.size() / sizeof(Entry)); 2132 GotDynSyms = DynSyms.drop_front(*DtGotSym); 2133 } 2134 2135 // Find PLT section. 2136 if (DtMipsPltGot || DtJmpRel) { 2137 if (!DtMipsPltGot) 2138 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag."); 2139 if (!DtJmpRel) 2140 report_fatal_error("Cannot find JMPREL dynamic table tag."); 2141 2142 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2143 if (!PltSec) 2144 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2145 Twine::utohexstr(*DtMipsPltGot)); 2146 2147 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2148 if (!PltRelSec) 2149 report_fatal_error("There is no not empty RELPLT section at 0x" + 2150 Twine::utohexstr(*DtJmpRel)); 2151 2152 ArrayRef<uint8_t> PltContent = 2153 unwrapOrError(Obj->getSectionContents(PltSec)); 2154 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()), 2155 PltContent.size() / sizeof(Entry)); 2156 2157 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link)); 2158 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable)); 2159 } 2160 } 2161 2162 template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const { 2163 return GotSec->sh_addr + 0x7ff0; 2164 } 2165 2166 template <class ELFT> 2167 const typename MipsGOTParser<ELFT>::Entry * 2168 MipsGOTParser<ELFT>::getGotLazyResolver() const { 2169 return LocalNum > 0 ? &GotEntries[0] : nullptr; 2170 } 2171 2172 template <class ELFT> 2173 const typename MipsGOTParser<ELFT>::Entry * 2174 MipsGOTParser<ELFT>::getGotModulePointer() const { 2175 if (LocalNum < 2) 2176 return nullptr; 2177 const Entry &E = GotEntries[1]; 2178 if ((E >> (sizeof(Entry) * 8 - 1)) == 0) 2179 return nullptr; 2180 return &E; 2181 } 2182 2183 template <class ELFT> 2184 typename MipsGOTParser<ELFT>::Entries 2185 MipsGOTParser<ELFT>::getLocalEntries() const { 2186 size_t Skip = getGotModulePointer() ? 2 : 1; 2187 if (LocalNum - Skip <= 0) 2188 return Entries(); 2189 return GotEntries.slice(Skip, LocalNum - Skip); 2190 } 2191 2192 template <class ELFT> 2193 typename MipsGOTParser<ELFT>::Entries 2194 MipsGOTParser<ELFT>::getGlobalEntries() const { 2195 if (GlobalNum == 0) 2196 return Entries(); 2197 return GotEntries.slice(LocalNum, GlobalNum); 2198 } 2199 2200 template <class ELFT> 2201 typename MipsGOTParser<ELFT>::Entries 2202 MipsGOTParser<ELFT>::getOtherEntries() const { 2203 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum; 2204 if (OtherNum == 0) 2205 return Entries(); 2206 return GotEntries.slice(LocalNum + GlobalNum, OtherNum); 2207 } 2208 2209 template <class ELFT> 2210 uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const { 2211 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2212 return GotSec->sh_addr + Offset; 2213 } 2214 2215 template <class ELFT> 2216 int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const { 2217 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry); 2218 return Offset - 0x7ff0; 2219 } 2220 2221 template <class ELFT> 2222 const typename MipsGOTParser<ELFT>::Elf_Sym * 2223 MipsGOTParser<ELFT>::getGotSym(const Entry *E) const { 2224 int64_t Offset = std::distance(GotEntries.data(), E); 2225 return &GotDynSyms[Offset - LocalNum]; 2226 } 2227 2228 template <class ELFT> 2229 const typename MipsGOTParser<ELFT>::Entry * 2230 MipsGOTParser<ELFT>::getPltLazyResolver() const { 2231 return PltEntries.empty() ? nullptr : &PltEntries[0]; 2232 } 2233 2234 template <class ELFT> 2235 const typename MipsGOTParser<ELFT>::Entry * 2236 MipsGOTParser<ELFT>::getPltModulePointer() const { 2237 return PltEntries.size() < 2 ? nullptr : &PltEntries[1]; 2238 } 2239 2240 template <class ELFT> 2241 typename MipsGOTParser<ELFT>::Entries 2242 MipsGOTParser<ELFT>::getPltEntries() const { 2243 if (PltEntries.size() <= 2) 2244 return Entries(); 2245 return PltEntries.slice(2, PltEntries.size() - 2); 2246 } 2247 2248 template <class ELFT> 2249 uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const { 2250 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry); 2251 return PltSec->sh_addr + Offset; 2252 } 2253 2254 template <class ELFT> 2255 const typename MipsGOTParser<ELFT>::Elf_Sym * 2256 MipsGOTParser<ELFT>::getPltSym(const Entry *E) const { 2257 int64_t Offset = std::distance(getPltEntries().data(), E); 2258 if (PltRelSec->sh_type == ELF::SHT_REL) { 2259 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec)); 2260 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2261 } else { 2262 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec)); 2263 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable)); 2264 } 2265 } 2266 2267 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2268 if (Obj->getHeader()->e_machine != EM_MIPS) 2269 reportError("MIPS PLT GOT is available for MIPS targets only"); 2270 2271 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols()); 2272 if (Parser.hasGot()) 2273 ELFDumperStyle->printMipsGOT(Parser); 2274 if (Parser.hasPlt()) 2275 ELFDumperStyle->printMipsPLT(Parser); 2276 } 2277 2278 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2279 {"None", Mips::AFL_EXT_NONE}, 2280 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2281 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2282 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2283 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2284 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2285 {"LSI R4010", Mips::AFL_EXT_4010}, 2286 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2287 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2288 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2289 {"MIPS R4650", Mips::AFL_EXT_4650}, 2290 {"MIPS R5900", Mips::AFL_EXT_5900}, 2291 {"MIPS R10000", Mips::AFL_EXT_10000}, 2292 {"NEC VR4100", Mips::AFL_EXT_4100}, 2293 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2294 {"NEC VR4120", Mips::AFL_EXT_4120}, 2295 {"NEC VR5400", Mips::AFL_EXT_5400}, 2296 {"NEC VR5500", Mips::AFL_EXT_5500}, 2297 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2298 {"Toshiba R3900", Mips::AFL_EXT_3900} 2299 }; 2300 2301 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2302 {"DSP", Mips::AFL_ASE_DSP}, 2303 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2304 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2305 {"MCU", Mips::AFL_ASE_MCU}, 2306 {"MDMX", Mips::AFL_ASE_MDMX}, 2307 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2308 {"MT", Mips::AFL_ASE_MT}, 2309 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2310 {"VZ", Mips::AFL_ASE_VIRT}, 2311 {"MSA", Mips::AFL_ASE_MSA}, 2312 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2313 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2314 {"XPA", Mips::AFL_ASE_XPA}, 2315 {"CRC", Mips::AFL_ASE_CRC}, 2316 {"GINV", Mips::AFL_ASE_GINV}, 2317 }; 2318 2319 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2320 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2321 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2322 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2323 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2324 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2325 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2326 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2327 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2328 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2329 Mips::Val_GNU_MIPS_ABI_FP_64A} 2330 }; 2331 2332 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2333 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2334 }; 2335 2336 static int getMipsRegisterSize(uint8_t Flag) { 2337 switch (Flag) { 2338 case Mips::AFL_REG_NONE: 2339 return 0; 2340 case Mips::AFL_REG_32: 2341 return 32; 2342 case Mips::AFL_REG_64: 2343 return 64; 2344 case Mips::AFL_REG_128: 2345 return 128; 2346 default: 2347 return -1; 2348 } 2349 } 2350 2351 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2352 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2353 if (!Shdr) { 2354 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2355 return; 2356 } 2357 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2358 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2359 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2360 return; 2361 } 2362 2363 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2364 2365 raw_ostream &OS = W.getOStream(); 2366 DictScope GS(W, "MIPS ABI Flags"); 2367 2368 W.printNumber("Version", Flags->version); 2369 W.startLine() << "ISA: "; 2370 if (Flags->isa_rev <= 1) 2371 OS << format("MIPS%u", Flags->isa_level); 2372 else 2373 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2374 OS << "\n"; 2375 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2376 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2377 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2378 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2379 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2380 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2381 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2382 W.printHex("Flags 2", Flags->flags2); 2383 } 2384 2385 template <class ELFT> 2386 static void printMipsReginfoData(ScopedPrinter &W, 2387 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2388 W.printHex("GP", Reginfo.ri_gp_value); 2389 W.printHex("General Mask", Reginfo.ri_gprmask); 2390 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2391 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2392 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2393 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2394 } 2395 2396 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2397 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2398 if (!Shdr) { 2399 W.startLine() << "There is no .reginfo section in the file.\n"; 2400 return; 2401 } 2402 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2403 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2404 W.startLine() << "The .reginfo section has a wrong size.\n"; 2405 return; 2406 } 2407 2408 DictScope GS(W, "MIPS RegInfo"); 2409 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2410 printMipsReginfoData(W, *Reginfo); 2411 } 2412 2413 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2414 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2415 if (!Shdr) { 2416 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2417 return; 2418 } 2419 2420 DictScope GS(W, "MIPS Options"); 2421 2422 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2423 while (!Sec.empty()) { 2424 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2425 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2426 return; 2427 } 2428 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2429 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2430 switch (O->kind) { 2431 case ODK_REGINFO: 2432 printMipsReginfoData(W, O->getRegInfo()); 2433 break; 2434 default: 2435 W.startLine() << "Unsupported MIPS options tag.\n"; 2436 break; 2437 } 2438 Sec = Sec.slice(O->size); 2439 } 2440 } 2441 2442 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2443 const Elf_Shdr *StackMapSection = nullptr; 2444 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2445 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2446 if (Name == ".llvm_stackmaps") { 2447 StackMapSection = &Sec; 2448 break; 2449 } 2450 } 2451 2452 if (!StackMapSection) 2453 return; 2454 2455 ArrayRef<uint8_t> StackMapContentsArray = 2456 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2457 2458 prettyPrintStackMap( 2459 W, StackMapV2Parser<ELFT::TargetEndianness>(StackMapContentsArray)); 2460 } 2461 2462 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2463 ELFDumperStyle->printGroupSections(Obj); 2464 } 2465 2466 template <class ELFT> void ELFDumper<ELFT>::printAddrsig() { 2467 ELFDumperStyle->printAddrsig(Obj); 2468 } 2469 2470 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2471 StringRef Str2) { 2472 OS.PadToColumn(2u); 2473 OS << Str1; 2474 OS.PadToColumn(37u); 2475 OS << Str2 << "\n"; 2476 OS.flush(); 2477 } 2478 2479 template <class ELFT> 2480 static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) { 2481 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2482 if (ElfHeader->e_shnum != 0) 2483 return to_string(ElfHeader->e_shnum); 2484 2485 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2486 if (Arr.empty()) 2487 return "0"; 2488 return "0 (" + to_string(Arr[0].sh_size) + ")"; 2489 } 2490 2491 template <class ELFT> 2492 static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) { 2493 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader(); 2494 if (ElfHeader->e_shstrndx != SHN_XINDEX) 2495 return to_string(ElfHeader->e_shstrndx); 2496 2497 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections()); 2498 if (Arr.empty()) 2499 return "65535 (corrupt: out of range)"; 2500 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) + ")"; 2501 } 2502 2503 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2504 const Elf_Ehdr *e = Obj->getHeader(); 2505 OS << "ELF Header:\n"; 2506 OS << " Magic: "; 2507 std::string Str; 2508 for (int i = 0; i < ELF::EI_NIDENT; i++) 2509 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2510 OS << "\n"; 2511 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2512 printFields(OS, "Class:", Str); 2513 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2514 printFields(OS, "Data:", Str); 2515 OS.PadToColumn(2u); 2516 OS << "Version:"; 2517 OS.PadToColumn(37u); 2518 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2519 if (e->e_version == ELF::EV_CURRENT) 2520 OS << " (current)"; 2521 OS << "\n"; 2522 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2523 printFields(OS, "OS/ABI:", Str); 2524 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2525 printFields(OS, "ABI Version:", Str); 2526 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2527 printFields(OS, "Type:", Str); 2528 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2529 printFields(OS, "Machine:", Str); 2530 Str = "0x" + to_hexString(e->e_version); 2531 printFields(OS, "Version:", Str); 2532 Str = "0x" + to_hexString(e->e_entry); 2533 printFields(OS, "Entry point address:", Str); 2534 Str = to_string(e->e_phoff) + " (bytes into file)"; 2535 printFields(OS, "Start of program headers:", Str); 2536 Str = to_string(e->e_shoff) + " (bytes into file)"; 2537 printFields(OS, "Start of section headers:", Str); 2538 Str = "0x" + to_hexString(e->e_flags); 2539 printFields(OS, "Flags:", Str); 2540 Str = to_string(e->e_ehsize) + " (bytes)"; 2541 printFields(OS, "Size of this header:", Str); 2542 Str = to_string(e->e_phentsize) + " (bytes)"; 2543 printFields(OS, "Size of program headers:", Str); 2544 Str = to_string(e->e_phnum); 2545 printFields(OS, "Number of program headers:", Str); 2546 Str = to_string(e->e_shentsize) + " (bytes)"; 2547 printFields(OS, "Size of section headers:", Str); 2548 Str = getSectionHeadersNumString(Obj); 2549 printFields(OS, "Number of section headers:", Str); 2550 Str = getSectionHeaderTableIndexString(Obj); 2551 printFields(OS, "Section header string table index:", Str); 2552 } 2553 2554 namespace { 2555 struct GroupMember { 2556 StringRef Name; 2557 uint64_t Index; 2558 }; 2559 2560 struct GroupSection { 2561 StringRef Name; 2562 StringRef Signature; 2563 uint64_t ShName; 2564 uint64_t Index; 2565 uint32_t Link; 2566 uint32_t Info; 2567 uint32_t Type; 2568 std::vector<GroupMember> Members; 2569 }; 2570 2571 template <class ELFT> 2572 std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) { 2573 using Elf_Shdr = typename ELFT::Shdr; 2574 using Elf_Sym = typename ELFT::Sym; 2575 using Elf_Word = typename ELFT::Word; 2576 2577 std::vector<GroupSection> Ret; 2578 uint64_t I = 0; 2579 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2580 ++I; 2581 if (Sec.sh_type != ELF::SHT_GROUP) 2582 continue; 2583 2584 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2585 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2586 const Elf_Sym *Sym = 2587 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2588 auto Data = 2589 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2590 2591 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2592 StringRef Signature = StrTable.data() + Sym->st_name; 2593 Ret.push_back({Name, 2594 Signature, 2595 Sec.sh_name, 2596 I - 1, 2597 Sec.sh_link, 2598 Sec.sh_info, 2599 Data[0], 2600 {}}); 2601 2602 std::vector<GroupMember> &GM = Ret.back().Members; 2603 for (uint32_t Ndx : Data.slice(1)) { 2604 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2605 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2606 GM.push_back({Name, Ndx}); 2607 } 2608 } 2609 return Ret; 2610 } 2611 2612 DenseMap<uint64_t, const GroupSection *> 2613 mapSectionsToGroups(ArrayRef<GroupSection> Groups) { 2614 DenseMap<uint64_t, const GroupSection *> Ret; 2615 for (const GroupSection &G : Groups) 2616 for (const GroupMember &GM : G.Members) 2617 Ret.insert({GM.Index, &G}); 2618 return Ret; 2619 } 2620 2621 } // namespace 2622 2623 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2624 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 2625 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 2626 for (const GroupSection &G : V) { 2627 OS << "\n" 2628 << getGroupType(G.Type) << " group section [" 2629 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature 2630 << "] contains " << G.Members.size() << " sections:\n" 2631 << " [Index] Name\n"; 2632 for (const GroupMember &GM : G.Members) { 2633 const GroupSection *MainGroup = Map[GM.Index]; 2634 if (MainGroup != &G) { 2635 OS.flush(); 2636 errs() << "Error: section [" << format_decimal(GM.Index, 5) 2637 << "] in group section [" << format_decimal(G.Index, 5) 2638 << "] already in group section [" 2639 << format_decimal(MainGroup->Index, 5) << "]"; 2640 errs().flush(); 2641 continue; 2642 } 2643 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n"; 2644 } 2645 } 2646 2647 if (V.empty()) 2648 OS << "There are no section groups in this file.\n"; 2649 } 2650 2651 template <class ELFT> 2652 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2653 const Elf_Rela &R, bool IsRela) { 2654 std::string Offset, Info, Addend, Value; 2655 SmallString<32> RelocName; 2656 StringRef TargetName; 2657 const Elf_Sym *Sym = nullptr; 2658 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2659 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2660 2661 // First two fields are bit width dependent. The rest of them are after are 2662 // fixed width. 2663 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2664 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2665 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2666 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2667 const Elf_Shdr *Sec = unwrapOrError( 2668 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2669 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2670 } else if (Sym) { 2671 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2672 TargetName = unwrapOrError(Sym->getName(StrTable)); 2673 } 2674 2675 if (Sym && IsRela) { 2676 if (R.r_addend < 0) 2677 Addend = " - "; 2678 else 2679 Addend = " + "; 2680 } 2681 2682 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 2683 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 2684 2685 int64_t RelAddend = R.r_addend; 2686 if (IsRela) 2687 Addend += to_hexString(std::abs(RelAddend), false); 2688 2689 if (Sym) 2690 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2691 2692 Fields[0].Str = Offset; 2693 Fields[1].Str = Info; 2694 Fields[2].Str = RelocName; 2695 Fields[3].Str = Value; 2696 Fields[4].Str = TargetName; 2697 for (auto &field : Fields) 2698 printField(field); 2699 OS << Addend; 2700 OS << "\n"; 2701 } 2702 2703 template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) { 2704 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA; 2705 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR; 2706 if (ELFT::Is64Bits) 2707 OS << " "; 2708 else 2709 OS << " "; 2710 if (IsRelr && opts::RawRelr) 2711 OS << "Data "; 2712 else 2713 OS << "Offset"; 2714 if (ELFT::Is64Bits) 2715 OS << " Info Type" 2716 << " Symbol's Value Symbol's Name"; 2717 else 2718 OS << " Info Type Sym. Value Symbol's Name"; 2719 if (IsRela) 2720 OS << " + Addend"; 2721 OS << "\n"; 2722 } 2723 2724 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2725 bool HasRelocSections = false; 2726 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2727 if (Sec.sh_type != ELF::SHT_REL && 2728 Sec.sh_type != ELF::SHT_RELA && 2729 Sec.sh_type != ELF::SHT_RELR && 2730 Sec.sh_type != ELF::SHT_ANDROID_REL && 2731 Sec.sh_type != ELF::SHT_ANDROID_RELA && 2732 Sec.sh_type != ELF::SHT_ANDROID_RELR) 2733 continue; 2734 HasRelocSections = true; 2735 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2736 unsigned Entries = Sec.getEntityCount(); 2737 std::vector<Elf_Rela> AndroidRelas; 2738 if (Sec.sh_type == ELF::SHT_ANDROID_REL || 2739 Sec.sh_type == ELF::SHT_ANDROID_RELA) { 2740 // Android's packed relocation section needs to be unpacked first 2741 // to get the actual number of entries. 2742 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec)); 2743 Entries = AndroidRelas.size(); 2744 } 2745 std::vector<Elf_Rela> RelrRelas; 2746 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR || 2747 Sec.sh_type == ELF::SHT_ANDROID_RELR)) { 2748 // .relr.dyn relative relocation section needs to be unpacked first 2749 // to get the actual number of entries. 2750 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec)); 2751 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 2752 Entries = RelrRelas.size(); 2753 } 2754 uintX_t Offset = Sec.sh_offset; 2755 OS << "\nRelocation section '" << Name << "' at offset 0x" 2756 << to_hexString(Offset, false) << " contains " << Entries 2757 << " entries:\n"; 2758 printRelocHeader(Sec.sh_type); 2759 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2760 switch (Sec.sh_type) { 2761 case ELF::SHT_REL: 2762 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2763 Elf_Rela Rela; 2764 Rela.r_offset = R.r_offset; 2765 Rela.r_info = R.r_info; 2766 Rela.r_addend = 0; 2767 printRelocation(Obj, SymTab, Rela, false); 2768 } 2769 break; 2770 case ELF::SHT_RELA: 2771 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2772 printRelocation(Obj, SymTab, R, true); 2773 break; 2774 case ELF::SHT_RELR: 2775 case ELF::SHT_ANDROID_RELR: 2776 if (opts::RawRelr) 2777 for (const auto &R : unwrapOrError(Obj->relrs(&Sec))) 2778 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8)) 2779 << "\n"; 2780 else 2781 for (const auto &R : RelrRelas) 2782 printRelocation(Obj, SymTab, R, false); 2783 break; 2784 case ELF::SHT_ANDROID_REL: 2785 case ELF::SHT_ANDROID_RELA: 2786 for (const auto &R : AndroidRelas) 2787 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA); 2788 break; 2789 } 2790 } 2791 if (!HasRelocSections) 2792 OS << "\nThere are no relocations in this file.\n"; 2793 } 2794 2795 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2796 using namespace ELF; 2797 2798 switch (Arch) { 2799 case EM_ARM: 2800 switch (Type) { 2801 case SHT_ARM_EXIDX: 2802 return "ARM_EXIDX"; 2803 case SHT_ARM_PREEMPTMAP: 2804 return "ARM_PREEMPTMAP"; 2805 case SHT_ARM_ATTRIBUTES: 2806 return "ARM_ATTRIBUTES"; 2807 case SHT_ARM_DEBUGOVERLAY: 2808 return "ARM_DEBUGOVERLAY"; 2809 case SHT_ARM_OVERLAYSECTION: 2810 return "ARM_OVERLAYSECTION"; 2811 } 2812 case EM_X86_64: 2813 switch (Type) { 2814 case SHT_X86_64_UNWIND: 2815 return "X86_64_UNWIND"; 2816 } 2817 case EM_MIPS: 2818 case EM_MIPS_RS3_LE: 2819 switch (Type) { 2820 case SHT_MIPS_REGINFO: 2821 return "MIPS_REGINFO"; 2822 case SHT_MIPS_OPTIONS: 2823 return "MIPS_OPTIONS"; 2824 case SHT_MIPS_ABIFLAGS: 2825 return "MIPS_ABIFLAGS"; 2826 case SHT_MIPS_DWARF: 2827 return "SHT_MIPS_DWARF"; 2828 } 2829 } 2830 switch (Type) { 2831 case SHT_NULL: 2832 return "NULL"; 2833 case SHT_PROGBITS: 2834 return "PROGBITS"; 2835 case SHT_SYMTAB: 2836 return "SYMTAB"; 2837 case SHT_STRTAB: 2838 return "STRTAB"; 2839 case SHT_RELA: 2840 return "RELA"; 2841 case SHT_HASH: 2842 return "HASH"; 2843 case SHT_DYNAMIC: 2844 return "DYNAMIC"; 2845 case SHT_NOTE: 2846 return "NOTE"; 2847 case SHT_NOBITS: 2848 return "NOBITS"; 2849 case SHT_REL: 2850 return "REL"; 2851 case SHT_SHLIB: 2852 return "SHLIB"; 2853 case SHT_DYNSYM: 2854 return "DYNSYM"; 2855 case SHT_INIT_ARRAY: 2856 return "INIT_ARRAY"; 2857 case SHT_FINI_ARRAY: 2858 return "FINI_ARRAY"; 2859 case SHT_PREINIT_ARRAY: 2860 return "PREINIT_ARRAY"; 2861 case SHT_GROUP: 2862 return "GROUP"; 2863 case SHT_SYMTAB_SHNDX: 2864 return "SYMTAB SECTION INDICES"; 2865 case SHT_RELR: 2866 case SHT_ANDROID_RELR: 2867 return "RELR"; 2868 case SHT_LLVM_ODRTAB: 2869 return "LLVM_ODRTAB"; 2870 case SHT_LLVM_LINKER_OPTIONS: 2871 return "LLVM_LINKER_OPTIONS"; 2872 case SHT_LLVM_CALL_GRAPH_PROFILE: 2873 return "LLVM_CALL_GRAPH_PROFILE"; 2874 case SHT_LLVM_ADDRSIG: 2875 return "LLVM_ADDRSIG"; 2876 // FIXME: Parse processor specific GNU attributes 2877 case SHT_GNU_ATTRIBUTES: 2878 return "ATTRIBUTES"; 2879 case SHT_GNU_HASH: 2880 return "GNU_HASH"; 2881 case SHT_GNU_verdef: 2882 return "VERDEF"; 2883 case SHT_GNU_verneed: 2884 return "VERNEED"; 2885 case SHT_GNU_versym: 2886 return "VERSYM"; 2887 default: 2888 return ""; 2889 } 2890 return ""; 2891 } 2892 2893 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) { 2894 size_t SectionIndex = 0; 2895 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, 2896 Alignment; 2897 unsigned Bias; 2898 unsigned Width; 2899 2900 if (ELFT::Is64Bits) { 2901 Bias = 0; 2902 Width = 16; 2903 } else { 2904 Bias = 8; 2905 Width = 8; 2906 } 2907 OS << "There are " << to_string(Obj->getHeader()->e_shnum) 2908 << " section headers, starting at offset " 2909 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2910 OS << "Section Headers:\n"; 2911 Field Fields[11] = {{"[Nr]", 2}, 2912 {"Name", 7}, 2913 {"Type", 25}, 2914 {"Address", 41}, 2915 {"Off", 58 - Bias}, 2916 {"Size", 65 - Bias}, 2917 {"ES", 72 - Bias}, 2918 {"Flg", 75 - Bias}, 2919 {"Lk", 79 - Bias}, 2920 {"Inf", 82 - Bias}, 2921 {"Al", 86 - Bias}}; 2922 for (auto &f : Fields) 2923 printField(f); 2924 OS << "\n"; 2925 2926 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2927 Number = to_string(SectionIndex); 2928 Fields[0].Str = Number; 2929 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2930 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2931 Fields[2].Str = Type; 2932 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); 2933 Fields[3].Str = Address; 2934 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2935 Fields[4].Str = Offset; 2936 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2937 Fields[5].Str = Size; 2938 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2939 Fields[6].Str = EntrySize; 2940 Flags = getGNUFlags(Sec.sh_flags); 2941 Fields[7].Str = Flags; 2942 Link = to_string(Sec.sh_link); 2943 Fields[8].Str = Link; 2944 Info = to_string(Sec.sh_info); 2945 Fields[9].Str = Info; 2946 Alignment = to_string(Sec.sh_addralign); 2947 Fields[10].Str = Alignment; 2948 OS.PadToColumn(Fields[0].Column); 2949 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2950 for (int i = 1; i < 7; i++) 2951 printField(Fields[i]); 2952 OS.PadToColumn(Fields[7].Column); 2953 OS << right_justify(Fields[7].Str, 3); 2954 OS.PadToColumn(Fields[8].Column); 2955 OS << right_justify(Fields[8].Str, 2); 2956 OS.PadToColumn(Fields[9].Column); 2957 OS << right_justify(Fields[9].Str, 3); 2958 OS.PadToColumn(Fields[10].Column); 2959 OS << right_justify(Fields[10].Str, 2); 2960 OS << "\n"; 2961 ++SectionIndex; 2962 } 2963 OS << "Key to Flags:\n" 2964 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2965 "(large)\n" 2966 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2967 x (unknown)\n" 2968 << " O (extra OS processing required) o (OS specific),\ 2969 p (processor specific)\n"; 2970 } 2971 2972 template <class ELFT> 2973 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2974 size_t Entries) { 2975 if (!Name.empty()) 2976 OS << "\nSymbol table '" << Name << "' contains " << Entries 2977 << " entries:\n"; 2978 else 2979 OS << "\n Symbol table for image:\n"; 2980 2981 if (ELFT::Is64Bits) 2982 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2983 else 2984 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2985 } 2986 2987 template <class ELFT> 2988 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2989 const Elf_Sym *Symbol, 2990 const Elf_Sym *FirstSym) { 2991 unsigned SectionIndex = Symbol->st_shndx; 2992 switch (SectionIndex) { 2993 case ELF::SHN_UNDEF: 2994 return "UND"; 2995 case ELF::SHN_ABS: 2996 return "ABS"; 2997 case ELF::SHN_COMMON: 2998 return "COM"; 2999 case ELF::SHN_XINDEX: 3000 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 3001 Symbol, FirstSym, this->dumper()->getShndxTable())); 3002 LLVM_FALLTHROUGH; 3003 default: 3004 // Find if: 3005 // Processor specific 3006 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 3007 return std::string("PRC[0x") + 3008 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3009 // OS specific 3010 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 3011 return std::string("OS[0x") + 3012 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3013 // Architecture reserved: 3014 if (SectionIndex >= ELF::SHN_LORESERVE && 3015 SectionIndex <= ELF::SHN_HIRESERVE) 3016 return std::string("RSV[0x") + 3017 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 3018 // A normal section with an index 3019 return to_string(format_decimal(SectionIndex, 3)); 3020 } 3021 } 3022 3023 template <class ELFT> 3024 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3025 const Elf_Sym *FirstSym, StringRef StrTable, 3026 bool IsDynamic) { 3027 static int Idx = 0; 3028 static bool Dynamic = true; 3029 size_t Width; 3030 3031 // If this function was called with a different value from IsDynamic 3032 // from last call, happens when we move from dynamic to static symbol 3033 // table, "Num" field should be reset. 3034 if (!Dynamic != !IsDynamic) { 3035 Idx = 0; 3036 Dynamic = false; 3037 } 3038 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; 3039 unsigned Bias = 0; 3040 if (ELFT::Is64Bits) { 3041 Bias = 8; 3042 Width = 16; 3043 } else { 3044 Bias = 0; 3045 Width = 8; 3046 } 3047 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 3048 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 3049 Num = to_string(format_decimal(Idx++, 6)) + ":"; 3050 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 3051 Size = to_string(format_decimal(Symbol->st_size, 5)); 3052 unsigned char SymbolType = Symbol->getType(); 3053 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3054 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3055 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3056 else 3057 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3058 unsigned Vis = Symbol->getVisibility(); 3059 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3060 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 3061 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3062 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3063 Fields[0].Str = Num; 3064 Fields[1].Str = Value; 3065 Fields[2].Str = Size; 3066 Fields[3].Str = Type; 3067 Fields[4].Str = Binding; 3068 Fields[5].Str = Visibility; 3069 Fields[6].Str = Section; 3070 Fields[7].Str = Name; 3071 for (auto &Entry : Fields) 3072 printField(Entry); 3073 OS << "\n"; 3074 } 3075 template <class ELFT> 3076 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 3077 uint32_t Sym, StringRef StrTable, 3078 uint32_t Bucket) { 3079 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; 3080 unsigned Width, Bias = 0; 3081 if (ELFT::Is64Bits) { 3082 Bias = 8; 3083 Width = 16; 3084 } else { 3085 Bias = 0; 3086 Width = 8; 3087 } 3088 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 3089 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 3090 Num = to_string(format_decimal(Sym, 5)); 3091 Buc = to_string(format_decimal(Bucket, 3)) + ":"; 3092 3093 const auto Symbol = FirstSym + Sym; 3094 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 3095 Size = to_string(format_decimal(Symbol->st_size, 5)); 3096 unsigned char SymbolType = Symbol->getType(); 3097 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3098 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3099 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3100 else 3101 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 3102 unsigned Vis = Symbol->getVisibility(); 3103 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3104 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 3105 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 3106 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 3107 Fields[0].Str = Num; 3108 Fields[1].Str = Buc; 3109 Fields[2].Str = Value; 3110 Fields[3].Str = Size; 3111 Fields[4].Str = Type; 3112 Fields[5].Str = Binding; 3113 Fields[6].Str = Visibility; 3114 Fields[7].Str = Section; 3115 Fields[8].Str = Name; 3116 for (auto &Entry : Fields) 3117 printField(Entry); 3118 OS << "\n"; 3119 } 3120 3121 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { 3122 if (opts::DynamicSymbols) 3123 return; 3124 this->dumper()->printSymbolsHelper(true); 3125 this->dumper()->printSymbolsHelper(false); 3126 } 3127 3128 template <class ELFT> 3129 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 3130 if (this->dumper()->getDynamicStringTable().empty()) 3131 return; 3132 auto StringTable = this->dumper()->getDynamicStringTable(); 3133 auto DynSyms = this->dumper()->dynamic_symbols(); 3134 auto GnuHash = this->dumper()->getGnuHashTable(); 3135 auto SysVHash = this->dumper()->getHashTable(); 3136 3137 // If no hash or .gnu.hash found, try using symbol table 3138 if (GnuHash == nullptr && SysVHash == nullptr) 3139 this->dumper()->printSymbolsHelper(true); 3140 3141 // Try printing .hash 3142 if (this->dumper()->getHashTable()) { 3143 OS << "\n Symbol table of .hash for image:\n"; 3144 if (ELFT::Is64Bits) 3145 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3146 else 3147 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3148 OS << "\n"; 3149 3150 uint32_t NBuckets = SysVHash->nbucket; 3151 uint32_t NChains = SysVHash->nchain; 3152 auto Buckets = SysVHash->buckets(); 3153 auto Chains = SysVHash->chains(); 3154 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 3155 if (Buckets[Buc] == ELF::STN_UNDEF) 3156 continue; 3157 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { 3158 if (Ch == ELF::STN_UNDEF) 3159 break; 3160 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 3161 } 3162 } 3163 } 3164 3165 // Try printing .gnu.hash 3166 if (GnuHash) { 3167 OS << "\n Symbol table of .gnu.hash for image:\n"; 3168 if (ELFT::Is64Bits) 3169 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3170 else 3171 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 3172 OS << "\n"; 3173 uint32_t NBuckets = GnuHash->nbuckets; 3174 auto Buckets = GnuHash->buckets(); 3175 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 3176 if (Buckets[Buc] == ELF::STN_UNDEF) 3177 continue; 3178 uint32_t Index = Buckets[Buc]; 3179 uint32_t GnuHashable = Index - GnuHash->symndx; 3180 // Print whole chain 3181 while (true) { 3182 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 3183 // Chain ends at symbol with stopper bit 3184 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 3185 break; 3186 } 3187 } 3188 } 3189 } 3190 3191 static inline std::string printPhdrFlags(unsigned Flag) { 3192 std::string Str; 3193 Str = (Flag & PF_R) ? "R" : " "; 3194 Str += (Flag & PF_W) ? "W" : " "; 3195 Str += (Flag & PF_X) ? "E" : " "; 3196 return Str; 3197 } 3198 3199 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 3200 // PT_TLS must only have SHF_TLS sections 3201 template <class ELFT> 3202 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 3203 const Elf_Shdr &Sec) { 3204 return (((Sec.sh_flags & ELF::SHF_TLS) && 3205 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 3206 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 3207 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 3208 } 3209 3210 // Non-SHT_NOBITS must have its offset inside the segment 3211 // Only non-zero section can be at end of segment 3212 template <class ELFT> 3213 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3214 if (Sec.sh_type == ELF::SHT_NOBITS) 3215 return true; 3216 bool IsSpecial = 3217 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3218 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3219 auto SectionSize = 3220 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3221 if (Sec.sh_offset >= Phdr.p_offset) 3222 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 3223 /*only non-zero sized sections at end*/ && 3224 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 3225 return false; 3226 } 3227 3228 // SHF_ALLOC must have VMA inside segment 3229 // Only non-zero section can be at end of segment 3230 template <class ELFT> 3231 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3232 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 3233 return true; 3234 bool IsSpecial = 3235 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 3236 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 3237 auto SectionSize = 3238 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 3239 if (Sec.sh_addr >= Phdr.p_vaddr) 3240 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 3241 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3242 return false; 3243 } 3244 3245 // No section with zero size must be at start or end of PT_DYNAMIC 3246 template <class ELFT> 3247 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3248 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3249 return true; 3250 // Is section within the phdr both based on offset and VMA ? 3251 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3252 (Sec.sh_offset > Phdr.p_offset && 3253 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3254 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3255 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3256 } 3257 3258 template <class ELFT> 3259 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3260 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3261 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3262 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3263 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; 3264 3265 const Elf_Ehdr *Header = Obj->getHeader(); 3266 Field Fields[8] = {2, 17, 26, 37 + Bias, 3267 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3268 OS << "\nElf file type is " 3269 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3270 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3271 << "There are " << Header->e_phnum << " program headers," 3272 << " starting at offset " << Header->e_phoff << "\n\n" 3273 << "Program Headers:\n"; 3274 if (ELFT::Is64Bits) 3275 OS << " Type Offset VirtAddr PhysAddr " 3276 << " FileSiz MemSiz Flg Align\n"; 3277 else 3278 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3279 << "MemSiz Flg Align\n"; 3280 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3281 Type = getElfPtType(Header->e_machine, Phdr.p_type); 3282 Offset = to_string(format_hex(Phdr.p_offset, 8)); 3283 VMA = to_string(format_hex(Phdr.p_vaddr, Width)); 3284 LMA = to_string(format_hex(Phdr.p_paddr, Width)); 3285 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3286 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3287 Flag = printPhdrFlags(Phdr.p_flags); 3288 Align = to_string(format_hex(Phdr.p_align, 1)); 3289 Fields[0].Str = Type; 3290 Fields[1].Str = Offset; 3291 Fields[2].Str = VMA; 3292 Fields[3].Str = LMA; 3293 Fields[4].Str = FileSz; 3294 Fields[5].Str = MemSz; 3295 Fields[6].Str = Flag; 3296 Fields[7].Str = Align; 3297 for (auto Field : Fields) 3298 printField(Field); 3299 if (Phdr.p_type == ELF::PT_INTERP) { 3300 OS << "\n [Requesting program interpreter: "; 3301 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3302 } 3303 OS << "\n"; 3304 } 3305 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3306 int Phnum = 0; 3307 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3308 std::string Sections; 3309 OS << format(" %2.2d ", Phnum++); 3310 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3311 // Check if each section is in a segment and then print mapping. 3312 // readelf additionally makes sure it does not print zero sized sections 3313 // at end of segments and for PT_DYNAMIC both start and end of section 3314 // .tbss must only be shown in PT_TLS section. 3315 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3316 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3317 Phdr.p_type != ELF::PT_TLS; 3318 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3319 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3320 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) 3321 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3322 } 3323 OS << Sections << "\n"; 3324 OS.flush(); 3325 } 3326 } 3327 3328 template <class ELFT> 3329 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3330 bool IsRela) { 3331 SmallString<32> RelocName; 3332 StringRef SymbolName; 3333 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3334 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3335 // First two fields are bit width dependent. The rest of them are after are 3336 // fixed width. 3337 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3338 3339 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3340 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3341 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3342 SymbolName = 3343 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3344 std::string Addend, Info, Offset, Value; 3345 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 3346 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 3347 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3348 int64_t RelAddend = R.r_addend; 3349 if (!SymbolName.empty() && IsRela) { 3350 if (R.r_addend < 0) 3351 Addend = " - "; 3352 else 3353 Addend = " + "; 3354 } 3355 3356 if (SymbolName.empty() && Sym->getValue() == 0) 3357 Value = ""; 3358 3359 if (IsRela) 3360 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3361 3362 3363 Fields[0].Str = Offset; 3364 Fields[1].Str = Info; 3365 Fields[2].Str = RelocName.c_str(); 3366 Fields[3].Str = Value; 3367 Fields[4].Str = SymbolName; 3368 for (auto &Field : Fields) 3369 printField(Field); 3370 OS << Addend; 3371 OS << "\n"; 3372 } 3373 3374 template <class ELFT> 3375 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3376 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3377 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3378 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 3379 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3380 if (DynRelaRegion.Size > 0) { 3381 OS << "\n'RELA' relocation section at offset " 3382 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3383 Obj->base(), 3384 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3385 printRelocHeader(ELF::SHT_RELA); 3386 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3387 printDynamicRelocation(Obj, Rela, true); 3388 } 3389 if (DynRelRegion.Size > 0) { 3390 OS << "\n'REL' relocation section at offset " 3391 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3392 Obj->base(), 3393 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3394 printRelocHeader(ELF::SHT_REL); 3395 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3396 Elf_Rela Rela; 3397 Rela.r_offset = Rel.r_offset; 3398 Rela.r_info = Rel.r_info; 3399 Rela.r_addend = 0; 3400 printDynamicRelocation(Obj, Rela, false); 3401 } 3402 } 3403 if (DynRelrRegion.Size > 0) { 3404 OS << "\n'RELR' relocation section at offset " 3405 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) - 3406 Obj->base(), 3407 1) << " contains " << DynRelrRegion.Size << " bytes:\n"; 3408 printRelocHeader(ELF::SHT_REL); 3409 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 3410 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 3411 for (const Elf_Rela &Rela : RelrRelas) { 3412 printDynamicRelocation(Obj, Rela, false); 3413 } 3414 } 3415 if (DynPLTRelRegion.Size) { 3416 OS << "\n'PLT' relocation section at offset " 3417 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3418 Obj->base(), 3419 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3420 } 3421 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3422 printRelocHeader(ELF::SHT_RELA); 3423 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3424 printDynamicRelocation(Obj, Rela, true); 3425 } else { 3426 printRelocHeader(ELF::SHT_REL); 3427 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3428 Elf_Rela Rela; 3429 Rela.r_offset = Rel.r_offset; 3430 Rela.r_info = Rel.r_info; 3431 Rela.r_addend = 0; 3432 printDynamicRelocation(Obj, Rela, false); 3433 } 3434 } 3435 } 3436 3437 // Hash histogram shows statistics of how efficient the hash was for the 3438 // dynamic symbol table. The table shows number of hash buckets for different 3439 // lengths of chains as absolute number and percentage of the total buckets. 3440 // Additionally cumulative coverage of symbols for each set of buckets. 3441 template <class ELFT> 3442 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3443 3444 const Elf_Hash *HashTable = this->dumper()->getHashTable(); 3445 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); 3446 3447 // Print histogram for .hash section 3448 if (HashTable) { 3449 size_t NBucket = HashTable->nbucket; 3450 size_t NChain = HashTable->nchain; 3451 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3452 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3453 size_t TotalSyms = 0; 3454 // If hash table is correct, we have at least chains with 0 length 3455 size_t MaxChain = 1; 3456 size_t CumulativeNonZero = 0; 3457 3458 if (NChain == 0 || NBucket == 0) 3459 return; 3460 3461 std::vector<size_t> ChainLen(NBucket, 0); 3462 // Go over all buckets and and note chain lengths of each bucket (total 3463 // unique chain lengths). 3464 for (size_t B = 0; B < NBucket; B++) { 3465 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3466 if (MaxChain <= ++ChainLen[B]) 3467 MaxChain++; 3468 TotalSyms += ChainLen[B]; 3469 } 3470 3471 if (!TotalSyms) 3472 return; 3473 3474 std::vector<size_t> Count(MaxChain, 0) ; 3475 // Count how long is the chain for each bucket 3476 for (size_t B = 0; B < NBucket; B++) 3477 ++Count[ChainLen[B]]; 3478 // Print Number of buckets with each chain lengths and their cumulative 3479 // coverage of the symbols 3480 OS << "Histogram for bucket list length (total of " << NBucket 3481 << " buckets)\n" 3482 << " Length Number % of total Coverage\n"; 3483 for (size_t I = 0; I < MaxChain; I++) { 3484 CumulativeNonZero += Count[I] * I; 3485 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3486 (Count[I] * 100.0) / NBucket, 3487 (CumulativeNonZero * 100.0) / TotalSyms); 3488 } 3489 } 3490 3491 // Print histogram for .gnu.hash section 3492 if (GnuHashTable) { 3493 size_t NBucket = GnuHashTable->nbuckets; 3494 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3495 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3496 if (!NumSyms) 3497 return; 3498 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3499 size_t Symndx = GnuHashTable->symndx; 3500 size_t TotalSyms = 0; 3501 size_t MaxChain = 1; 3502 size_t CumulativeNonZero = 0; 3503 3504 if (Chains.empty() || NBucket == 0) 3505 return; 3506 3507 std::vector<size_t> ChainLen(NBucket, 0); 3508 3509 for (size_t B = 0; B < NBucket; B++) { 3510 if (!Buckets[B]) 3511 continue; 3512 size_t Len = 1; 3513 for (size_t C = Buckets[B] - Symndx; 3514 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3515 if (MaxChain < ++Len) 3516 MaxChain++; 3517 ChainLen[B] = Len; 3518 TotalSyms += Len; 3519 } 3520 MaxChain++; 3521 3522 if (!TotalSyms) 3523 return; 3524 3525 std::vector<size_t> Count(MaxChain, 0) ; 3526 for (size_t B = 0; B < NBucket; B++) 3527 ++Count[ChainLen[B]]; 3528 // Print Number of buckets with each chain lengths and their cumulative 3529 // coverage of the symbols 3530 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3531 << " buckets)\n" 3532 << " Length Number % of total Coverage\n"; 3533 for (size_t I = 0; I <MaxChain; I++) { 3534 CumulativeNonZero += Count[I] * I; 3535 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3536 (Count[I] * 100.0) / NBucket, 3537 (CumulativeNonZero * 100.0) / TotalSyms); 3538 } 3539 } 3540 } 3541 3542 template <class ELFT> 3543 void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 3544 OS << "GNUStyle::printCGProfile not implemented\n"; 3545 } 3546 3547 template <class ELFT> 3548 void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 3549 OS << "GNUStyle::printAddrsig not implemented\n"; 3550 } 3551 3552 static std::string getGNUNoteTypeName(const uint32_t NT) { 3553 static const struct { 3554 uint32_t ID; 3555 const char *Name; 3556 } Notes[] = { 3557 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3558 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3559 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3560 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3561 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"}, 3562 }; 3563 3564 for (const auto &Note : Notes) 3565 if (Note.ID == NT) 3566 return std::string(Note.Name); 3567 3568 std::string string; 3569 raw_string_ostream OS(string); 3570 OS << format("Unknown note type (0x%08x)", NT); 3571 return OS.str(); 3572 } 3573 3574 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3575 static const struct { 3576 uint32_t ID; 3577 const char *Name; 3578 } Notes[] = { 3579 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3580 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3581 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3582 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3583 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3584 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3585 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3586 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3587 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3588 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3589 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3590 }; 3591 3592 for (const auto &Note : Notes) 3593 if (Note.ID == NT) 3594 return std::string(Note.Name); 3595 3596 std::string string; 3597 raw_string_ostream OS(string); 3598 OS << format("Unknown note type (0x%08x)", NT); 3599 return OS.str(); 3600 } 3601 3602 static std::string getAMDGPUNoteTypeName(const uint32_t NT) { 3603 static const struct { 3604 uint32_t ID; 3605 const char *Name; 3606 } Notes[] = { 3607 {ELF::NT_AMD_AMDGPU_HSA_METADATA, 3608 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"}, 3609 {ELF::NT_AMD_AMDGPU_ISA, 3610 "NT_AMD_AMDGPU_ISA (ISA Version)"}, 3611 {ELF::NT_AMD_AMDGPU_PAL_METADATA, 3612 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"} 3613 }; 3614 3615 for (const auto &Note : Notes) 3616 if (Note.ID == NT) 3617 return std::string(Note.Name); 3618 3619 std::string string; 3620 raw_string_ostream OS(string); 3621 OS << format("Unknown note type (0x%08x)", NT); 3622 return OS.str(); 3623 } 3624 3625 template <typename ELFT> 3626 static void printGNUProperty(raw_ostream &OS, uint32_t Type, uint32_t DataSize, 3627 ArrayRef<uint8_t> Data) { 3628 switch (Type) { 3629 default: 3630 OS << format(" <application-specific type 0x%x>\n", Type); 3631 return; 3632 case GNU_PROPERTY_STACK_SIZE: { 3633 OS << " stack size: "; 3634 if (DataSize == sizeof(typename ELFT::uint)) 3635 OS << format("0x%llx\n", 3636 (uint64_t)(*(const typename ELFT::Addr *)Data.data())); 3637 else 3638 OS << format("<corrupt length: 0x%x>\n", DataSize); 3639 break; 3640 } 3641 case GNU_PROPERTY_NO_COPY_ON_PROTECTED: 3642 OS << " no copy on protected"; 3643 if (DataSize) 3644 OS << format(" <corrupt length: 0x%x>", DataSize); 3645 OS << "\n"; 3646 break; 3647 case GNU_PROPERTY_X86_FEATURE_1_AND: 3648 OS << " X86 features: "; 3649 if (DataSize != 4 && DataSize != 8) { 3650 OS << format("<corrupt length: 0x%x>\n", DataSize); 3651 break; 3652 } 3653 uint64_t CFProtection = 3654 (DataSize == 4) 3655 ? support::endian::read32<ELFT::TargetEndianness>(Data.data()) 3656 : support::endian::read64<ELFT::TargetEndianness>(Data.data()); 3657 if (CFProtection == 0) { 3658 OS << "none\n"; 3659 break; 3660 } 3661 if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_IBT) { 3662 OS << "IBT"; 3663 CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_IBT; 3664 if (CFProtection) 3665 OS << ", "; 3666 } 3667 if (CFProtection & GNU_PROPERTY_X86_FEATURE_1_SHSTK) { 3668 OS << "SHSTK"; 3669 CFProtection &= ~GNU_PROPERTY_X86_FEATURE_1_SHSTK; 3670 if (CFProtection) 3671 OS << ", "; 3672 } 3673 if (CFProtection) 3674 OS << format("<unknown flags: 0x%llx>", CFProtection); 3675 OS << "\n"; 3676 break; 3677 } 3678 } 3679 3680 template <typename ELFT> 3681 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3682 ArrayRef<typename ELFT::Word> Words, size_t Size) { 3683 using Elf_Word = typename ELFT::Word; 3684 3685 switch (NoteType) { 3686 default: 3687 return; 3688 case ELF::NT_GNU_ABI_TAG: { 3689 static const char *OSNames[] = { 3690 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3691 }; 3692 3693 StringRef OSName = "Unknown"; 3694 if (Words[0] < array_lengthof(OSNames)) 3695 OSName = OSNames[Words[0]]; 3696 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3697 3698 if (Words.size() < 4) 3699 OS << " <corrupt GNU_ABI_TAG>"; 3700 else 3701 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "." 3702 << Patch; 3703 break; 3704 } 3705 case ELF::NT_GNU_BUILD_ID: { 3706 OS << " Build ID: "; 3707 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size); 3708 for (const auto &B : ID) 3709 OS << format_hex_no_prefix(B, 2); 3710 break; 3711 } 3712 case ELF::NT_GNU_GOLD_VERSION: 3713 OS << " Version: " 3714 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3715 break; 3716 case ELF::NT_GNU_PROPERTY_TYPE_0: 3717 OS << " Properties:"; 3718 3719 ArrayRef<uint8_t> Arr(reinterpret_cast<const uint8_t *>(Words.data()), 3720 Size); 3721 while (Arr.size() >= 8) { 3722 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data()); 3723 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4); 3724 Arr = Arr.drop_front(8); 3725 3726 // Take padding size into account if present. 3727 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint)); 3728 if (Arr.size() < PaddedSize) { 3729 OS << format(" <corrupt type (0x%x) datasz: 0x%x>\n", Type, 3730 DataSize); 3731 break; 3732 } 3733 printGNUProperty<ELFT>(OS, Type, DataSize, Arr.take_front(PaddedSize)); 3734 Arr = Arr.drop_front(PaddedSize); 3735 } 3736 3737 if (!Arr.empty()) 3738 OS << " <corrupted GNU_PROPERTY_TYPE_0>"; 3739 break; 3740 } 3741 OS << '\n'; 3742 } 3743 3744 template <typename ELFT> 3745 static void printAMDGPUNote(raw_ostream &OS, uint32_t NoteType, 3746 ArrayRef<typename ELFT::Word> Words, size_t Size) { 3747 switch (NoteType) { 3748 default: 3749 return; 3750 case ELF::NT_AMD_AMDGPU_HSA_METADATA: 3751 OS << " HSA Metadata:\n" 3752 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3753 break; 3754 case ELF::NT_AMD_AMDGPU_ISA: 3755 OS << " ISA Version:\n" 3756 << " " 3757 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3758 break; 3759 case ELF::NT_AMD_AMDGPU_PAL_METADATA: 3760 const uint32_t *PALMetadataBegin = reinterpret_cast<const uint32_t *>(Words.data()); 3761 const uint32_t *PALMetadataEnd = PALMetadataBegin + Size; 3762 std::vector<uint32_t> PALMetadata(PALMetadataBegin, PALMetadataEnd); 3763 std::string PALMetadataString; 3764 auto Error = AMDGPU::PALMD::toString(PALMetadata, PALMetadataString); 3765 OS << " PAL Metadata:\n"; 3766 if (Error) { 3767 OS << " Invalid"; 3768 return; 3769 } 3770 OS << PALMetadataString; 3771 break; 3772 } 3773 OS.flush(); 3774 } 3775 3776 template <class ELFT> 3777 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3778 const Elf_Ehdr *e = Obj->getHeader(); 3779 bool IsCore = e->e_type == ELF::ET_CORE; 3780 3781 auto PrintHeader = [&](const typename ELFT::Off Offset, 3782 const typename ELFT::Addr Size) { 3783 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3784 << " with length " << format_hex(Size, 10) << ":\n" 3785 << " Owner Data size\tDescription\n"; 3786 }; 3787 3788 auto ProcessNote = [&](const Elf_Note &Note) { 3789 StringRef Name = Note.getName(); 3790 ArrayRef<Elf_Word> Descriptor = Note.getDesc(); 3791 Elf_Word Type = Note.getType(); 3792 3793 OS << " " << Name << std::string(22 - Name.size(), ' ') 3794 << format_hex(Descriptor.size(), 10) << '\t'; 3795 3796 if (Name == "GNU") { 3797 OS << getGNUNoteTypeName(Type) << '\n'; 3798 printGNUNote<ELFT>(OS, Type, Descriptor, Descriptor.size()); 3799 } else if (Name == "FreeBSD") { 3800 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3801 } else if (Name == "AMD") { 3802 OS << getAMDGPUNoteTypeName(Type) << '\n'; 3803 printAMDGPUNote<ELFT>(OS, Type, Descriptor, Descriptor.size()); 3804 } else { 3805 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3806 } 3807 OS << '\n'; 3808 }; 3809 3810 if (IsCore) { 3811 for (const auto &P : unwrapOrError(Obj->program_headers())) { 3812 if (P.p_type != PT_NOTE) 3813 continue; 3814 PrintHeader(P.p_offset, P.p_filesz); 3815 Error Err = Error::success(); 3816 for (const auto &Note : Obj->notes(P, Err)) 3817 ProcessNote(Note); 3818 if (Err) 3819 error(std::move(Err)); 3820 } 3821 } else { 3822 for (const auto &S : unwrapOrError(Obj->sections())) { 3823 if (S.sh_type != SHT_NOTE) 3824 continue; 3825 PrintHeader(S.sh_offset, S.sh_size); 3826 Error Err = Error::success(); 3827 for (const auto &Note : Obj->notes(S, Err)) 3828 ProcessNote(Note); 3829 if (Err) 3830 error(std::move(Err)); 3831 } 3832 } 3833 } 3834 3835 template <class ELFT> 3836 void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 3837 OS << "printELFLinkerOptions not implemented!\n"; 3838 } 3839 3840 template <class ELFT> 3841 void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 3842 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3843 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 3844 OS.PadToColumn(2); 3845 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 3846 OS.PadToColumn(11 + Bias); 3847 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)"; 3848 OS.PadToColumn(22 + Bias); 3849 OS << format_hex_no_prefix(*E, 8 + Bias); 3850 OS.PadToColumn(31 + 2 * Bias); 3851 OS << Purpose << "\n"; 3852 }; 3853 3854 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n"); 3855 OS << " Canonical gp value: " 3856 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n"; 3857 3858 OS << " Reserved entries:\n"; 3859 OS << " Address Access Initial Purpose\n"; 3860 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver"); 3861 if (Parser.getGotModulePointer()) 3862 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)"); 3863 3864 if (!Parser.getLocalEntries().empty()) { 3865 OS << "\n"; 3866 OS << " Local entries:\n"; 3867 OS << " Address Access Initial\n"; 3868 for (auto &E : Parser.getLocalEntries()) 3869 PrintEntry(&E, ""); 3870 } 3871 3872 if (Parser.IsStatic) 3873 return; 3874 3875 if (!Parser.getGlobalEntries().empty()) { 3876 OS << "\n"; 3877 OS << " Global entries:\n"; 3878 OS << " Address Access Initial Sym.Val. Type Ndx Name\n"; 3879 for (auto &E : Parser.getGlobalEntries()) { 3880 const Elf_Sym *Sym = Parser.getGotSym(&E); 3881 std::string SymName = this->dumper()->getFullSymbolName( 3882 Sym, this->dumper()->getDynamicStringTable(), false); 3883 3884 OS.PadToColumn(2); 3885 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 3886 OS.PadToColumn(11 + Bias); 3887 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)"; 3888 OS.PadToColumn(22 + Bias); 3889 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 3890 OS.PadToColumn(31 + 2 * Bias); 3891 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 3892 OS.PadToColumn(40 + 3 * Bias); 3893 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 3894 OS.PadToColumn(48 + 3 * Bias); 3895 OS << getSymbolSectionNdx(Parser.Obj, Sym, 3896 this->dumper()->dynamic_symbols().begin()); 3897 OS.PadToColumn(52 + 3 * Bias); 3898 OS << SymName << "\n"; 3899 } 3900 } 3901 3902 if (!Parser.getOtherEntries().empty()) 3903 OS << "\n Number of TLS and multi-GOT entries " 3904 << Parser.getOtherEntries().size() << "\n"; 3905 } 3906 3907 template <class ELFT> 3908 void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 3909 size_t Bias = ELFT::Is64Bits ? 8 : 0; 3910 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) { 3911 OS.PadToColumn(2); 3912 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias); 3913 OS.PadToColumn(11 + Bias); 3914 OS << format_hex_no_prefix(*E, 8 + Bias); 3915 OS.PadToColumn(20 + 2 * Bias); 3916 OS << Purpose << "\n"; 3917 }; 3918 3919 OS << "PLT GOT:\n\n"; 3920 3921 OS << " Reserved entries:\n"; 3922 OS << " Address Initial Purpose\n"; 3923 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver"); 3924 if (Parser.getPltModulePointer()) 3925 PrintEntry(Parser.getGotModulePointer(), "Module pointer"); 3926 3927 if (!Parser.getPltEntries().empty()) { 3928 OS << "\n"; 3929 OS << " Entries:\n"; 3930 OS << " Address Initial Sym.Val. Type Ndx Name\n"; 3931 for (auto &E : Parser.getPltEntries()) { 3932 const Elf_Sym *Sym = Parser.getPltSym(&E); 3933 std::string SymName = this->dumper()->getFullSymbolName( 3934 Sym, this->dumper()->getDynamicStringTable(), false); 3935 3936 OS.PadToColumn(2); 3937 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias)); 3938 OS.PadToColumn(11 + Bias); 3939 OS << to_string(format_hex_no_prefix(E, 8 + Bias)); 3940 OS.PadToColumn(20 + 2 * Bias); 3941 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias)); 3942 OS.PadToColumn(29 + 3 * Bias); 3943 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes)); 3944 OS.PadToColumn(37 + 3 * Bias); 3945 OS << getSymbolSectionNdx(Parser.Obj, Sym, 3946 this->dumper()->dynamic_symbols().begin()); 3947 OS.PadToColumn(41 + 3 * Bias); 3948 OS << SymName << "\n"; 3949 } 3950 } 3951 } 3952 3953 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 3954 const Elf_Ehdr *e = Obj->getHeader(); 3955 { 3956 DictScope D(W, "ElfHeader"); 3957 { 3958 DictScope D(W, "Ident"); 3959 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); 3960 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 3961 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], 3962 makeArrayRef(ElfDataEncoding)); 3963 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); 3964 3965 auto OSABI = makeArrayRef(ElfOSABI); 3966 if (e->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH && 3967 e->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) { 3968 switch (e->e_machine) { 3969 case ELF::EM_AMDGPU: 3970 OSABI = makeArrayRef(AMDGPUElfOSABI); 3971 break; 3972 case ELF::EM_ARM: 3973 OSABI = makeArrayRef(ARMElfOSABI); 3974 break; 3975 case ELF::EM_TI_C6000: 3976 OSABI = makeArrayRef(C6000ElfOSABI); 3977 break; 3978 } 3979 } 3980 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], OSABI); 3981 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); 3982 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); 3983 } 3984 3985 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); 3986 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); 3987 W.printNumber("Version", e->e_version); 3988 W.printHex("Entry", e->e_entry); 3989 W.printHex("ProgramHeaderOffset", e->e_phoff); 3990 W.printHex("SectionHeaderOffset", e->e_shoff); 3991 if (e->e_machine == EM_MIPS) 3992 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 3993 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 3994 unsigned(ELF::EF_MIPS_MACH)); 3995 else if (e->e_machine == EM_AMDGPU) 3996 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags), 3997 unsigned(ELF::EF_AMDGPU_MACH)); 3998 else if (e->e_machine == EM_RISCV) 3999 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderRISCVFlags)); 4000 else 4001 W.printFlags("Flags", e->e_flags); 4002 W.printNumber("HeaderSize", e->e_ehsize); 4003 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); 4004 W.printNumber("ProgramHeaderCount", e->e_phnum); 4005 W.printNumber("SectionHeaderEntrySize", e->e_shentsize); 4006 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj)); 4007 W.printString("StringTableSectionIndex", getSectionHeaderTableIndexString(Obj)); 4008 } 4009 } 4010 4011 template <class ELFT> 4012 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 4013 DictScope Lists(W, "Groups"); 4014 std::vector<GroupSection> V = getGroups<ELFT>(Obj); 4015 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V); 4016 for (const GroupSection &G : V) { 4017 DictScope D(W, "Group"); 4018 W.printNumber("Name", G.Name, G.ShName); 4019 W.printNumber("Index", G.Index); 4020 W.printNumber("Link", G.Link); 4021 W.printNumber("Info", G.Info); 4022 W.printHex("Type", getGroupType(G.Type), G.Type); 4023 W.startLine() << "Signature: " << G.Signature << "\n"; 4024 4025 ListScope L(W, "Section(s) in group"); 4026 for (const GroupMember &GM : G.Members) { 4027 const GroupSection *MainGroup = Map[GM.Index]; 4028 if (MainGroup != &G) { 4029 W.flush(); 4030 errs() << "Error: " << GM.Name << " (" << GM.Index 4031 << ") in a group " + G.Name + " (" << G.Index 4032 << ") is already in a group " + MainGroup->Name + " (" 4033 << MainGroup->Index << ")\n"; 4034 errs().flush(); 4035 continue; 4036 } 4037 W.startLine() << GM.Name << " (" << GM.Index << ")\n"; 4038 } 4039 } 4040 4041 if (V.empty()) 4042 W.startLine() << "There are no group sections in the file.\n"; 4043 } 4044 4045 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 4046 ListScope D(W, "Relocations"); 4047 4048 int SectionNumber = -1; 4049 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4050 ++SectionNumber; 4051 4052 if (Sec.sh_type != ELF::SHT_REL && 4053 Sec.sh_type != ELF::SHT_RELA && 4054 Sec.sh_type != ELF::SHT_RELR && 4055 Sec.sh_type != ELF::SHT_ANDROID_REL && 4056 Sec.sh_type != ELF::SHT_ANDROID_RELA && 4057 Sec.sh_type != ELF::SHT_ANDROID_RELR) 4058 continue; 4059 4060 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4061 4062 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 4063 W.indent(); 4064 4065 printRelocations(&Sec, Obj); 4066 4067 W.unindent(); 4068 W.startLine() << "}\n"; 4069 } 4070 } 4071 4072 template <class ELFT> 4073 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 4074 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 4075 4076 switch (Sec->sh_type) { 4077 case ELF::SHT_REL: 4078 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 4079 Elf_Rela Rela; 4080 Rela.r_offset = R.r_offset; 4081 Rela.r_info = R.r_info; 4082 Rela.r_addend = 0; 4083 printRelocation(Obj, Rela, SymTab); 4084 } 4085 break; 4086 case ELF::SHT_RELA: 4087 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 4088 printRelocation(Obj, R, SymTab); 4089 break; 4090 case ELF::SHT_RELR: 4091 case ELF::SHT_ANDROID_RELR: { 4092 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec)); 4093 if (opts::RawRelr) { 4094 for (const Elf_Relr &R : Relrs) 4095 W.startLine() << W.hex(R) << "\n"; 4096 } else { 4097 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4098 for (const Elf_Rela &R : RelrRelas) 4099 printRelocation(Obj, R, SymTab); 4100 } 4101 break; 4102 } 4103 case ELF::SHT_ANDROID_REL: 4104 case ELF::SHT_ANDROID_RELA: 4105 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec))) 4106 printRelocation(Obj, R, SymTab); 4107 break; 4108 } 4109 } 4110 4111 template <class ELFT> 4112 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 4113 const Elf_Shdr *SymTab) { 4114 SmallString<32> RelocName; 4115 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4116 StringRef TargetName; 4117 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 4118 if (Sym && Sym->getType() == ELF::STT_SECTION) { 4119 const Elf_Shdr *Sec = unwrapOrError( 4120 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 4121 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 4122 } else if (Sym) { 4123 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 4124 TargetName = unwrapOrError(Sym->getName(StrTable)); 4125 } 4126 4127 if (opts::ExpandRelocs) { 4128 DictScope Group(W, "Relocation"); 4129 W.printHex("Offset", Rel.r_offset); 4130 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4131 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 4132 Rel.getSymbol(Obj->isMips64EL())); 4133 W.printHex("Addend", Rel.r_addend); 4134 } else { 4135 raw_ostream &OS = W.startLine(); 4136 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4137 << (!TargetName.empty() ? TargetName : "-") << " " 4138 << W.hex(Rel.r_addend) << "\n"; 4139 } 4140 } 4141 4142 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) { 4143 ListScope SectionsD(W, "Sections"); 4144 4145 int SectionIndex = -1; 4146 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 4147 ++SectionIndex; 4148 4149 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 4150 4151 DictScope SectionD(W, "Section"); 4152 W.printNumber("Index", SectionIndex); 4153 W.printNumber("Name", Name, Sec.sh_name); 4154 W.printHex( 4155 "Type", 4156 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 4157 Sec.sh_type); 4158 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 4159 std::end(ElfSectionFlags)); 4160 switch (Obj->getHeader()->e_machine) { 4161 case EM_ARM: 4162 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 4163 std::end(ElfARMSectionFlags)); 4164 break; 4165 case EM_HEXAGON: 4166 SectionFlags.insert(SectionFlags.end(), 4167 std::begin(ElfHexagonSectionFlags), 4168 std::end(ElfHexagonSectionFlags)); 4169 break; 4170 case EM_MIPS: 4171 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 4172 std::end(ElfMipsSectionFlags)); 4173 break; 4174 case EM_X86_64: 4175 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 4176 std::end(ElfX86_64SectionFlags)); 4177 break; 4178 case EM_XCORE: 4179 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 4180 std::end(ElfXCoreSectionFlags)); 4181 break; 4182 default: 4183 // Nothing to do. 4184 break; 4185 } 4186 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 4187 W.printHex("Address", Sec.sh_addr); 4188 W.printHex("Offset", Sec.sh_offset); 4189 W.printNumber("Size", Sec.sh_size); 4190 W.printNumber("Link", Sec.sh_link); 4191 W.printNumber("Info", Sec.sh_info); 4192 W.printNumber("AddressAlignment", Sec.sh_addralign); 4193 W.printNumber("EntrySize", Sec.sh_entsize); 4194 4195 if (opts::SectionRelocations) { 4196 ListScope D(W, "Relocations"); 4197 printRelocations(&Sec, Obj); 4198 } 4199 4200 if (opts::SectionSymbols) { 4201 ListScope D(W, "Symbols"); 4202 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 4203 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 4204 4205 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 4206 const Elf_Shdr *SymSec = unwrapOrError( 4207 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 4208 if (SymSec == &Sec) 4209 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 4210 StrTable, false); 4211 } 4212 } 4213 4214 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 4215 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 4216 W.printBinaryBlock("SectionData", 4217 StringRef((const char *)Data.data(), Data.size())); 4218 } 4219 } 4220 } 4221 4222 template <class ELFT> 4223 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 4224 const Elf_Sym *First, StringRef StrTable, 4225 bool IsDynamic) { 4226 unsigned SectionIndex = 0; 4227 StringRef SectionName; 4228 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex); 4229 std::string FullSymbolName = 4230 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 4231 unsigned char SymbolType = Symbol->getType(); 4232 4233 DictScope D(W, "Symbol"); 4234 W.printNumber("Name", FullSymbolName, Symbol->st_name); 4235 W.printHex("Value", Symbol->st_value); 4236 W.printNumber("Size", Symbol->st_size); 4237 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 4238 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 4239 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 4240 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 4241 else 4242 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 4243 if (Symbol->st_other == 0) 4244 // Usually st_other flag is zero. Do not pollute the output 4245 // by flags enumeration in that case. 4246 W.printNumber("Other", 0); 4247 else { 4248 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 4249 std::end(ElfSymOtherFlags)); 4250 if (Obj->getHeader()->e_machine == EM_MIPS) { 4251 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 4252 // flag overlapped with other ST_MIPS_xxx flags. So consider both 4253 // cases separately. 4254 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 4255 SymOtherFlags.insert(SymOtherFlags.end(), 4256 std::begin(ElfMips16SymOtherFlags), 4257 std::end(ElfMips16SymOtherFlags)); 4258 else 4259 SymOtherFlags.insert(SymOtherFlags.end(), 4260 std::begin(ElfMipsSymOtherFlags), 4261 std::end(ElfMipsSymOtherFlags)); 4262 } 4263 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 4264 } 4265 W.printHex("Section", SectionName, SectionIndex); 4266 } 4267 4268 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 4269 ListScope Group(W, "Symbols"); 4270 this->dumper()->printSymbolsHelper(false); 4271 } 4272 4273 template <class ELFT> 4274 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 4275 ListScope Group(W, "DynamicSymbols"); 4276 this->dumper()->printSymbolsHelper(true); 4277 } 4278 4279 template <class ELFT> 4280 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 4281 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 4282 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 4283 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion(); 4284 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 4285 if (DynRelRegion.Size && DynRelaRegion.Size) 4286 report_fatal_error("There are both REL and RELA dynamic relocations"); 4287 W.startLine() << "Dynamic Relocations {\n"; 4288 W.indent(); 4289 if (DynRelaRegion.Size > 0) 4290 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 4291 printDynamicRelocation(Obj, Rela); 4292 else 4293 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 4294 Elf_Rela Rela; 4295 Rela.r_offset = Rel.r_offset; 4296 Rela.r_info = Rel.r_info; 4297 Rela.r_addend = 0; 4298 printDynamicRelocation(Obj, Rela); 4299 } 4300 if (DynRelrRegion.Size > 0) { 4301 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs(); 4302 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs)); 4303 for (const Elf_Rela &Rela : RelrRelas) 4304 printDynamicRelocation(Obj, Rela); 4305 } 4306 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 4307 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 4308 printDynamicRelocation(Obj, Rela); 4309 else 4310 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 4311 Elf_Rela Rela; 4312 Rela.r_offset = Rel.r_offset; 4313 Rela.r_info = Rel.r_info; 4314 Rela.r_addend = 0; 4315 printDynamicRelocation(Obj, Rela); 4316 } 4317 W.unindent(); 4318 W.startLine() << "}\n"; 4319 } 4320 4321 template <class ELFT> 4322 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 4323 SmallString<32> RelocName; 4324 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 4325 StringRef SymbolName; 4326 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 4327 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 4328 SymbolName = 4329 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 4330 if (opts::ExpandRelocs) { 4331 DictScope Group(W, "Relocation"); 4332 W.printHex("Offset", Rel.r_offset); 4333 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 4334 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 4335 W.printHex("Addend", Rel.r_addend); 4336 } else { 4337 raw_ostream &OS = W.startLine(); 4338 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 4339 << (!SymbolName.empty() ? SymbolName : "-") << " " 4340 << W.hex(Rel.r_addend) << "\n"; 4341 } 4342 } 4343 4344 template <class ELFT> 4345 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 4346 ListScope L(W, "ProgramHeaders"); 4347 4348 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 4349 DictScope P(W, "ProgramHeader"); 4350 W.printHex("Type", 4351 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 4352 Phdr.p_type); 4353 W.printHex("Offset", Phdr.p_offset); 4354 W.printHex("VirtualAddress", Phdr.p_vaddr); 4355 W.printHex("PhysicalAddress", Phdr.p_paddr); 4356 W.printNumber("FileSize", Phdr.p_filesz); 4357 W.printNumber("MemSize", Phdr.p_memsz); 4358 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 4359 W.printNumber("Alignment", Phdr.p_align); 4360 } 4361 } 4362 4363 template <class ELFT> 4364 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 4365 W.startLine() << "Hash Histogram not implemented!\n"; 4366 } 4367 4368 template <class ELFT> 4369 void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) { 4370 ListScope L(W, "CGProfile"); 4371 if (!this->dumper()->getDotCGProfileSec()) 4372 return; 4373 auto CGProfile = 4374 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>( 4375 this->dumper()->getDotCGProfileSec())); 4376 for (const Elf_CGProfile &CGPE : CGProfile) { 4377 DictScope D(W, "CGProfileEntry"); 4378 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from), 4379 CGPE.cgp_from); 4380 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to), 4381 CGPE.cgp_to); 4382 W.printNumber("Weight", CGPE.cgp_weight); 4383 } 4384 } 4385 4386 template <class ELFT> 4387 void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) { 4388 ListScope L(W, "Addrsig"); 4389 if (!this->dumper()->getDotAddrsigSec()) 4390 return; 4391 ArrayRef<uint8_t> Contents = unwrapOrError( 4392 Obj->getSectionContents(this->dumper()->getDotAddrsigSec())); 4393 const uint8_t *Cur = Contents.begin(); 4394 const uint8_t *End = Contents.end(); 4395 while (Cur != End) { 4396 unsigned Size; 4397 const char *Err; 4398 uint64_t SymIndex = decodeULEB128(Cur, &Size, Contents.end(), &Err); 4399 if (Err) 4400 reportError(Err); 4401 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex), 4402 SymIndex); 4403 Cur += Size; 4404 } 4405 } 4406 4407 template <class ELFT> 4408 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 4409 W.startLine() << "printNotes not implemented!\n"; 4410 } 4411 4412 template <class ELFT> 4413 void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) { 4414 ListScope L(W, "LinkerOptions"); 4415 4416 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) { 4417 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS) 4418 continue; 4419 4420 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr)); 4421 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) { 4422 StringRef Key = StringRef(reinterpret_cast<const char *>(P)); 4423 StringRef Value = 4424 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1); 4425 4426 W.printString(Key, Value); 4427 4428 P = P + Key.size() + Value.size() + 2; 4429 } 4430 } 4431 } 4432 4433 template <class ELFT> 4434 void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) { 4435 auto PrintEntry = [&](const Elf_Addr *E) { 4436 W.printHex("Address", Parser.getGotAddress(E)); 4437 W.printNumber("Access", Parser.getGotOffset(E)); 4438 W.printHex("Initial", *E); 4439 }; 4440 4441 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT"); 4442 4443 W.printHex("Canonical gp value", Parser.getGp()); 4444 { 4445 ListScope RS(W, "Reserved entries"); 4446 { 4447 DictScope D(W, "Entry"); 4448 PrintEntry(Parser.getGotLazyResolver()); 4449 W.printString("Purpose", StringRef("Lazy resolver")); 4450 } 4451 4452 if (Parser.getGotModulePointer()) { 4453 DictScope D(W, "Entry"); 4454 PrintEntry(Parser.getGotModulePointer()); 4455 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 4456 } 4457 } 4458 { 4459 ListScope LS(W, "Local entries"); 4460 for (auto &E : Parser.getLocalEntries()) { 4461 DictScope D(W, "Entry"); 4462 PrintEntry(&E); 4463 } 4464 } 4465 4466 if (Parser.IsStatic) 4467 return; 4468 4469 { 4470 ListScope GS(W, "Global entries"); 4471 for (auto &E : Parser.getGlobalEntries()) { 4472 DictScope D(W, "Entry"); 4473 4474 PrintEntry(&E); 4475 4476 const Elf_Sym *Sym = Parser.getGotSym(&E); 4477 W.printHex("Value", Sym->st_value); 4478 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4479 4480 unsigned SectionIndex = 0; 4481 StringRef SectionName; 4482 this->dumper()->getSectionNameIndex( 4483 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4484 SectionIndex); 4485 W.printHex("Section", SectionName, SectionIndex); 4486 4487 std::string SymName = this->dumper()->getFullSymbolName( 4488 Sym, this->dumper()->getDynamicStringTable(), true); 4489 W.printNumber("Name", SymName, Sym->st_name); 4490 } 4491 } 4492 4493 W.printNumber("Number of TLS and multi-GOT entries", 4494 uint64_t(Parser.getOtherEntries().size())); 4495 } 4496 4497 template <class ELFT> 4498 void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) { 4499 auto PrintEntry = [&](const Elf_Addr *E) { 4500 W.printHex("Address", Parser.getPltAddress(E)); 4501 W.printHex("Initial", *E); 4502 }; 4503 4504 DictScope GS(W, "PLT GOT"); 4505 4506 { 4507 ListScope RS(W, "Reserved entries"); 4508 { 4509 DictScope D(W, "Entry"); 4510 PrintEntry(Parser.getPltLazyResolver()); 4511 W.printString("Purpose", StringRef("PLT lazy resolver")); 4512 } 4513 4514 if (auto E = Parser.getPltModulePointer()) { 4515 DictScope D(W, "Entry"); 4516 PrintEntry(E); 4517 W.printString("Purpose", StringRef("Module pointer")); 4518 } 4519 } 4520 { 4521 ListScope LS(W, "Entries"); 4522 for (auto &E : Parser.getPltEntries()) { 4523 DictScope D(W, "Entry"); 4524 PrintEntry(&E); 4525 4526 const Elf_Sym *Sym = Parser.getPltSym(&E); 4527 W.printHex("Value", Sym->st_value); 4528 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 4529 4530 unsigned SectionIndex = 0; 4531 StringRef SectionName; 4532 this->dumper()->getSectionNameIndex( 4533 Sym, this->dumper()->dynamic_symbols().begin(), SectionName, 4534 SectionIndex); 4535 W.printHex("Section", SectionName, SectionIndex); 4536 4537 std::string SymName = 4538 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true); 4539 W.printNumber("Name", SymName, Sym->st_name); 4540 } 4541 } 4542 } 4543