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