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 /// \brief This file implements the ELF-specific dumper for llvm-readobj. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #include "ARMEHABIPrinter.h" 16 #include "Error.h" 17 #include "ObjDumper.h" 18 #include "StackMapPrinter.h" 19 #include "llvm-readobj.h" 20 #include "llvm/ADT/ArrayRef.h" 21 #include "llvm/ADT/Optional.h" 22 #include "llvm/ADT/PointerIntPair.h" 23 #include "llvm/ADT/SmallString.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/STLExtras.h" 26 #include "llvm/ADT/StringExtras.h" 27 #include "llvm/ADT/StringRef.h" 28 #include "llvm/ADT/Twine.h" 29 #include "llvm/BinaryFormat/ELF.h" 30 #include "llvm/Object/ELF.h" 31 #include "llvm/Object/ELFObjectFile.h" 32 #include "llvm/Object/ELFTypes.h" 33 #include "llvm/Object/Error.h" 34 #include "llvm/Object/ObjectFile.h" 35 #include "llvm/Object/StackMapParser.h" 36 #include "llvm/Support/ARMAttributeParser.h" 37 #include "llvm/Support/ARMBuildAttributes.h" 38 #include "llvm/Support/Casting.h" 39 #include "llvm/Support/Compiler.h" 40 #include "llvm/Support/Endian.h" 41 #include "llvm/Support/ErrorHandling.h" 42 #include "llvm/Support/Format.h" 43 #include "llvm/Support/FormattedStream.h" 44 #include "llvm/Support/MathExtras.h" 45 #include "llvm/Support/MipsABIFlags.h" 46 #include "llvm/Support/ScopedPrinter.h" 47 #include "llvm/Support/raw_ostream.h" 48 #include <algorithm> 49 #include <cinttypes> 50 #include <cstddef> 51 #include <cstdint> 52 #include <cstdlib> 53 #include <iterator> 54 #include <memory> 55 #include <string> 56 #include <system_error> 57 #include <vector> 58 59 using namespace llvm; 60 using namespace llvm::object; 61 using namespace ELF; 62 63 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 64 case ns::enum: return #enum; 65 66 #define ENUM_ENT(enum, altName) \ 67 { #enum, altName, ELF::enum } 68 69 #define ENUM_ENT_1(enum) \ 70 { #enum, #enum, ELF::enum } 71 72 #define LLVM_READOBJ_PHDR_ENUM(ns, enum) \ 73 case ns::enum: \ 74 return std::string(#enum).substr(3); 75 76 #define TYPEDEF_ELF_TYPES(ELFT) \ 77 using ELFO = ELFFile<ELFT>; \ 78 using Elf_Shdr = typename ELFO::Elf_Shdr; \ 79 using Elf_Sym = typename ELFO::Elf_Sym; \ 80 using Elf_Dyn = typename ELFO::Elf_Dyn; \ 81 using Elf_Dyn_Range = typename ELFO::Elf_Dyn_Range; \ 82 using Elf_Rel = typename ELFO::Elf_Rel; \ 83 using Elf_Rela = typename ELFO::Elf_Rela; \ 84 using Elf_Rel_Range = typename ELFO::Elf_Rel_Range; \ 85 using Elf_Rela_Range = typename ELFO::Elf_Rela_Range; \ 86 using Elf_Phdr = typename ELFO::Elf_Phdr; \ 87 using Elf_Half = typename ELFO::Elf_Half; \ 88 using Elf_Ehdr = typename ELFO::Elf_Ehdr; \ 89 using Elf_Word = typename ELFO::Elf_Word; \ 90 using Elf_Hash = typename ELFO::Elf_Hash; \ 91 using Elf_GnuHash = typename ELFO::Elf_GnuHash; \ 92 using Elf_Sym_Range = typename ELFO::Elf_Sym_Range; \ 93 using Elf_Versym = typename ELFO::Elf_Versym; \ 94 using Elf_Verneed = typename ELFO::Elf_Verneed; \ 95 using Elf_Vernaux = typename ELFO::Elf_Vernaux; \ 96 using Elf_Verdef = typename ELFO::Elf_Verdef; \ 97 using Elf_Verdaux = typename ELFO::Elf_Verdaux; \ 98 using uintX_t = typename ELFO::uintX_t; 99 100 namespace { 101 102 template <class ELFT> class DumpStyle; 103 104 /// Represents a contiguous uniform range in the file. We cannot just create a 105 /// range directly because when creating one of these from the .dynamic table 106 /// the size, entity size and virtual address are different entries in arbitrary 107 /// order (DT_REL, DT_RELSZ, DT_RELENT for example). 108 struct DynRegionInfo { 109 DynRegionInfo() = default; 110 DynRegionInfo(const void *A, uint64_t S, uint64_t ES) 111 : Addr(A), Size(S), EntSize(ES) {} 112 113 /// \brief Address in current address space. 114 const void *Addr = nullptr; 115 /// \brief Size in bytes of the region. 116 uint64_t Size = 0; 117 /// \brief Size of each entity in the region. 118 uint64_t EntSize = 0; 119 120 template <typename Type> ArrayRef<Type> getAsArrayRef() const { 121 const Type *Start = reinterpret_cast<const Type *>(Addr); 122 if (!Start) 123 return {Start, Start}; 124 if (EntSize != sizeof(Type) || Size % EntSize) 125 reportError("Invalid entity size"); 126 return {Start, Start + (Size / EntSize)}; 127 } 128 }; 129 130 template<typename ELFT> 131 class ELFDumper : public ObjDumper { 132 public: 133 ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer); 134 135 void printFileHeaders() override; 136 void printSections() override; 137 void printRelocations() override; 138 void printDynamicRelocations() override; 139 void printSymbols() override; 140 void printDynamicSymbols() override; 141 void printUnwindInfo() override; 142 143 void printDynamicTable() override; 144 void printNeededLibraries() override; 145 void printProgramHeaders() override; 146 void printHashTable() override; 147 void printGnuHashTable() override; 148 void printLoadName() override; 149 void printVersionInfo() override; 150 void printGroupSections() override; 151 152 void printAttributes() override; 153 void printMipsPLTGOT() override; 154 void printMipsABIFlags() override; 155 void printMipsReginfo() override; 156 void printMipsOptions() override; 157 158 void printAMDGPUCodeObjectMetadata() override; 159 160 void printStackMap() const override; 161 162 void printHashHistogram() override; 163 164 void printNotes() override; 165 166 private: 167 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle; 168 169 TYPEDEF_ELF_TYPES(ELFT) 170 171 DynRegionInfo checkDRI(DynRegionInfo DRI) { 172 if (DRI.Addr < Obj->base() || 173 (const uint8_t *)DRI.Addr + DRI.Size > Obj->base() + Obj->getBufSize()) 174 error(llvm::object::object_error::parse_failed); 175 return DRI; 176 } 177 178 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) { 179 return checkDRI({Obj->base() + P->p_offset, P->p_filesz, EntSize}); 180 } 181 182 DynRegionInfo createDRIFrom(const Elf_Shdr *S) { 183 return checkDRI({Obj->base() + S->sh_offset, S->sh_size, S->sh_entsize}); 184 } 185 186 void parseDynamicTable(ArrayRef<const Elf_Phdr *> LoadSegments); 187 188 void printValue(uint64_t Type, uint64_t Value); 189 190 StringRef getDynamicString(uint64_t Offset) const; 191 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb, 192 bool &IsDefault) const; 193 void LoadVersionMap() const; 194 void LoadVersionNeeds(const Elf_Shdr *ec) const; 195 void LoadVersionDefs(const Elf_Shdr *sec) const; 196 197 const ELFO *Obj; 198 DynRegionInfo DynRelRegion; 199 DynRegionInfo DynRelaRegion; 200 DynRegionInfo DynPLTRelRegion; 201 DynRegionInfo DynSymRegion; 202 DynRegionInfo DynamicTable; 203 StringRef DynamicStringTable; 204 StringRef SOName; 205 const Elf_Hash *HashTable = nullptr; 206 const Elf_GnuHash *GnuHashTable = nullptr; 207 const Elf_Shdr *DotSymtabSec = nullptr; 208 StringRef DynSymtabName; 209 ArrayRef<Elf_Word> ShndxTable; 210 211 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version 212 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r 213 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d 214 215 // Records for each version index the corresponding Verdef or Vernaux entry. 216 // This is filled the first time LoadVersionMap() is called. 217 class VersionMapEntry : public PointerIntPair<const void *, 1> { 218 public: 219 // If the integer is 0, this is an Elf_Verdef*. 220 // If the integer is 1, this is an Elf_Vernaux*. 221 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {} 222 VersionMapEntry(const Elf_Verdef *verdef) 223 : PointerIntPair<const void *, 1>(verdef, 0) {} 224 VersionMapEntry(const Elf_Vernaux *vernaux) 225 : PointerIntPair<const void *, 1>(vernaux, 1) {} 226 227 bool isNull() const { return getPointer() == nullptr; } 228 bool isVerdef() const { return !isNull() && getInt() == 0; } 229 bool isVernaux() const { return !isNull() && getInt() == 1; } 230 const Elf_Verdef *getVerdef() const { 231 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr; 232 } 233 const Elf_Vernaux *getVernaux() const { 234 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr; 235 } 236 }; 237 mutable SmallVector<VersionMapEntry, 16> VersionMap; 238 239 public: 240 Elf_Dyn_Range dynamic_table() const { 241 return DynamicTable.getAsArrayRef<Elf_Dyn>(); 242 } 243 244 Elf_Sym_Range dynamic_symbols() const { 245 return DynSymRegion.getAsArrayRef<Elf_Sym>(); 246 } 247 248 Elf_Rel_Range dyn_rels() const; 249 Elf_Rela_Range dyn_relas() const; 250 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable, 251 bool IsDynamic) const; 252 253 void printSymbolsHelper(bool IsDynamic) const; 254 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; } 255 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; } 256 StringRef getDynamicStringTable() const { return DynamicStringTable; } 257 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; } 258 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; } 259 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; } 260 const Elf_Hash *getHashTable() const { return HashTable; } 261 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; } 262 }; 263 264 template <class ELFT> 265 void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const { 266 StringRef StrTable, SymtabName; 267 size_t Entries = 0; 268 Elf_Sym_Range Syms(nullptr, nullptr); 269 if (IsDynamic) { 270 StrTable = DynamicStringTable; 271 Syms = dynamic_symbols(); 272 SymtabName = DynSymtabName; 273 if (DynSymRegion.Addr) 274 Entries = DynSymRegion.Size / DynSymRegion.EntSize; 275 } else { 276 if (!DotSymtabSec) 277 return; 278 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec)); 279 Syms = unwrapOrError(Obj->symbols(DotSymtabSec)); 280 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec)); 281 Entries = DotSymtabSec->getEntityCount(); 282 } 283 if (Syms.begin() == Syms.end()) 284 return; 285 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries); 286 for (const auto &Sym : Syms) 287 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic); 288 } 289 290 template <typename ELFT> class DumpStyle { 291 public: 292 using Elf_Shdr = typename ELFFile<ELFT>::Elf_Shdr; 293 using Elf_Sym = typename ELFFile<ELFT>::Elf_Sym; 294 295 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {} 296 virtual ~DumpStyle() = default; 297 298 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0; 299 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0; 300 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0; 301 virtual void printSections(const ELFFile<ELFT> *Obj) = 0; 302 virtual void printSymbols(const ELFFile<ELFT> *Obj) = 0; 303 virtual void printDynamicSymbols(const ELFFile<ELFT> *Obj) = 0; 304 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0; 305 virtual void printSymtabMessage(const ELFFile<ELFT> *obj, StringRef Name, 306 size_t Offset) {} 307 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol, 308 const Elf_Sym *FirstSym, StringRef StrTable, 309 bool IsDynamic) = 0; 310 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj) = 0; 311 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0; 312 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0; 313 const ELFDumper<ELFT> *dumper() const { return Dumper; } 314 315 private: 316 const ELFDumper<ELFT> *Dumper; 317 }; 318 319 template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> { 320 formatted_raw_ostream OS; 321 322 public: 323 TYPEDEF_ELF_TYPES(ELFT) 324 325 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 326 : DumpStyle<ELFT>(Dumper), OS(W.getOStream()) {} 327 328 void printFileHeaders(const ELFO *Obj) override; 329 void printGroupSections(const ELFFile<ELFT> *Obj) override; 330 void printRelocations(const ELFO *Obj) override; 331 void printSections(const ELFO *Obj) override; 332 void printSymbols(const ELFO *Obj) override; 333 void printDynamicSymbols(const ELFO *Obj) override; 334 void printDynamicRelocations(const ELFO *Obj) override; 335 void printSymtabMessage(const ELFO *Obj, StringRef Name, 336 size_t Offset) override; 337 void printProgramHeaders(const ELFO *Obj) override; 338 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 339 void printNotes(const ELFFile<ELFT> *Obj) override; 340 341 private: 342 struct Field { 343 StringRef Str; 344 unsigned Column; 345 346 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {} 347 Field(unsigned Col) : Str(""), Column(Col) {} 348 }; 349 350 template <typename T, typename TEnum> 351 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) { 352 for (const auto &EnumItem : EnumValues) 353 if (EnumItem.Value == Value) 354 return EnumItem.AltName; 355 return to_hexString(Value, false); 356 } 357 358 formatted_raw_ostream &printField(struct Field F) { 359 if (F.Column != 0) 360 OS.PadToColumn(F.Column); 361 OS << F.Str; 362 OS.flush(); 363 return OS; 364 } 365 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym, 366 StringRef StrTable, uint32_t Bucket); 367 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 368 const Elf_Rela &R, bool IsRela); 369 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 370 StringRef StrTable, bool IsDynamic) override; 371 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol, 372 const Elf_Sym *FirstSym); 373 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela); 374 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 375 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 376 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 377 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec); 378 }; 379 380 template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> { 381 public: 382 TYPEDEF_ELF_TYPES(ELFT) 383 384 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper) 385 : DumpStyle<ELFT>(Dumper), W(W) {} 386 387 void printFileHeaders(const ELFO *Obj) override; 388 void printGroupSections(const ELFFile<ELFT> *Obj) override; 389 void printRelocations(const ELFO *Obj) override; 390 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj); 391 void printSections(const ELFO *Obj) override; 392 void printSymbols(const ELFO *Obj) override; 393 void printDynamicSymbols(const ELFO *Obj) override; 394 void printDynamicRelocations(const ELFO *Obj) override; 395 void printProgramHeaders(const ELFO *Obj) override; 396 void printHashHistogram(const ELFFile<ELFT> *Obj) override; 397 void printNotes(const ELFFile<ELFT> *Obj) override; 398 399 private: 400 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab); 401 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel); 402 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First, 403 StringRef StrTable, bool IsDynamic) override; 404 405 ScopedPrinter &W; 406 }; 407 408 } // end anonymous namespace 409 410 namespace llvm { 411 412 template <class ELFT> 413 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj, 414 ScopedPrinter &Writer, 415 std::unique_ptr<ObjDumper> &Result) { 416 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 417 return readobj_error::success; 418 } 419 420 std::error_code createELFDumper(const object::ObjectFile *Obj, 421 ScopedPrinter &Writer, 422 std::unique_ptr<ObjDumper> &Result) { 423 // Little-endian 32-bit 424 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 425 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 426 427 // Big-endian 32-bit 428 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 429 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 430 431 // Little-endian 64-bit 432 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 433 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 434 435 // Big-endian 64-bit 436 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 437 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 438 439 return readobj_error::unsupported_obj_file_format; 440 } 441 442 } // end namespace llvm 443 444 // Iterate through the versions needed section, and place each Elf_Vernaux 445 // in the VersionMap according to its index. 446 template <class ELFT> 447 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const { 448 unsigned vn_size = sec->sh_size; // Size of section in bytes 449 unsigned vn_count = sec->sh_info; // Number of Verneed entries 450 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 451 const char *sec_end = sec_start + vn_size; 452 // The first Verneed entry is at the start of the section. 453 const char *p = sec_start; 454 for (unsigned i = 0; i < vn_count; i++) { 455 if (p + sizeof(Elf_Verneed) > sec_end) 456 report_fatal_error("Section ended unexpectedly while scanning " 457 "version needed records."); 458 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p); 459 if (vn->vn_version != ELF::VER_NEED_CURRENT) 460 report_fatal_error("Unexpected verneed version"); 461 // Iterate through the Vernaux entries 462 const char *paux = p + vn->vn_aux; 463 for (unsigned j = 0; j < vn->vn_cnt; j++) { 464 if (paux + sizeof(Elf_Vernaux) > sec_end) 465 report_fatal_error("Section ended unexpected while scanning auxiliary " 466 "version needed records."); 467 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux); 468 size_t index = vna->vna_other & ELF::VERSYM_VERSION; 469 if (index >= VersionMap.size()) 470 VersionMap.resize(index + 1); 471 VersionMap[index] = VersionMapEntry(vna); 472 paux += vna->vna_next; 473 } 474 p += vn->vn_next; 475 } 476 } 477 478 // Iterate through the version definitions, and place each Elf_Verdef 479 // in the VersionMap according to its index. 480 template <class ELFT> 481 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const { 482 unsigned vd_size = sec->sh_size; // Size of section in bytes 483 unsigned vd_count = sec->sh_info; // Number of Verdef entries 484 const char *sec_start = (const char *)Obj->base() + sec->sh_offset; 485 const char *sec_end = sec_start + vd_size; 486 // The first Verdef entry is at the start of the section. 487 const char *p = sec_start; 488 for (unsigned i = 0; i < vd_count; i++) { 489 if (p + sizeof(Elf_Verdef) > sec_end) 490 report_fatal_error("Section ended unexpectedly while scanning " 491 "version definitions."); 492 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p); 493 if (vd->vd_version != ELF::VER_DEF_CURRENT) 494 report_fatal_error("Unexpected verdef version"); 495 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION; 496 if (index >= VersionMap.size()) 497 VersionMap.resize(index + 1); 498 VersionMap[index] = VersionMapEntry(vd); 499 p += vd->vd_next; 500 } 501 } 502 503 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const { 504 // If there is no dynamic symtab or version table, there is nothing to do. 505 if (!DynSymRegion.Addr || !dot_gnu_version_sec) 506 return; 507 508 // Has the VersionMap already been loaded? 509 if (VersionMap.size() > 0) 510 return; 511 512 // The first two version indexes are reserved. 513 // Index 0 is LOCAL, index 1 is GLOBAL. 514 VersionMap.push_back(VersionMapEntry()); 515 VersionMap.push_back(VersionMapEntry()); 516 517 if (dot_gnu_version_d_sec) 518 LoadVersionDefs(dot_gnu_version_d_sec); 519 520 if (dot_gnu_version_r_sec) 521 LoadVersionNeeds(dot_gnu_version_r_sec); 522 } 523 524 template <typename ELFO, class ELFT> 525 static void printVersionSymbolSection(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 526 const typename ELFO::Elf_Shdr *Sec, 527 ScopedPrinter &W) { 528 DictScope SS(W, "Version symbols"); 529 if (!Sec) 530 return; 531 StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 532 W.printNumber("Section Name", Name, Sec->sh_name); 533 W.printHex("Address", Sec->sh_addr); 534 W.printHex("Offset", Sec->sh_offset); 535 W.printNumber("Link", Sec->sh_link); 536 537 const uint8_t *P = (const uint8_t *)Obj->base() + Sec->sh_offset; 538 StringRef StrTable = Dumper->getDynamicStringTable(); 539 540 // Same number of entries in the dynamic symbol table (DT_SYMTAB). 541 ListScope Syms(W, "Symbols"); 542 for (const typename ELFO::Elf_Sym &Sym : Dumper->dynamic_symbols()) { 543 DictScope S(W, "Symbol"); 544 std::string FullSymbolName = 545 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */); 546 W.printNumber("Version", *P); 547 W.printString("Name", FullSymbolName); 548 P += sizeof(typename ELFO::Elf_Half); 549 } 550 } 551 552 static const EnumEntry<unsigned> SymVersionFlags[] = { 553 {"Base", "BASE", VER_FLG_BASE}, 554 {"Weak", "WEAK", VER_FLG_WEAK}, 555 {"Info", "INFO", VER_FLG_INFO}}; 556 557 template <typename ELFO, class ELFT> 558 static void printVersionDefinitionSection(ELFDumper<ELFT> *Dumper, 559 const ELFO *Obj, 560 const typename ELFO::Elf_Shdr *Sec, 561 ScopedPrinter &W) { 562 using VerDef = typename ELFO::Elf_Verdef; 563 using VerdAux = typename ELFO::Elf_Verdaux; 564 565 DictScope SD(W, "SHT_GNU_verdef"); 566 if (!Sec) 567 return; 568 569 // The number of entries in the section SHT_GNU_verdef 570 // is determined by DT_VERDEFNUM tag. 571 unsigned VerDefsNum = 0; 572 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) { 573 if (Dyn.d_tag == DT_VERDEFNUM) 574 VerDefsNum = Dyn.d_un.d_val; 575 } 576 const uint8_t *SecStartAddress = 577 (const uint8_t *)Obj->base() + Sec->sh_offset; 578 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size; 579 const uint8_t *P = SecStartAddress; 580 const typename ELFO::Elf_Shdr *StrTab = 581 unwrapOrError(Obj->getSection(Sec->sh_link)); 582 583 while (VerDefsNum--) { 584 if (P + sizeof(VerDef) > SecEndAddress) 585 report_fatal_error("invalid offset in the section"); 586 587 auto *VD = reinterpret_cast<const VerDef *>(P); 588 DictScope Def(W, "Definition"); 589 W.printNumber("Version", VD->vd_version); 590 W.printEnum("Flags", VD->vd_flags, makeArrayRef(SymVersionFlags)); 591 W.printNumber("Index", VD->vd_ndx); 592 W.printNumber("Hash", VD->vd_hash); 593 W.printString("Name", 594 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 595 VD->getAux()->vda_name))); 596 if (!VD->vd_cnt) 597 report_fatal_error("at least one definition string must exist"); 598 if (VD->vd_cnt > 2) 599 report_fatal_error("more than one predecessor is not expected"); 600 601 if (VD->vd_cnt == 2) { 602 const uint8_t *PAux = P + VD->vd_aux + VD->getAux()->vda_next; 603 const VerdAux *Aux = reinterpret_cast<const VerdAux *>(PAux); 604 W.printString("Predecessor", 605 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 606 Aux->vda_name))); 607 } 608 609 P += VD->vd_next; 610 } 611 } 612 613 template <typename ELFO, class ELFT> 614 static void printVersionDependencySection(ELFDumper<ELFT> *Dumper, 615 const ELFO *Obj, 616 const typename ELFO::Elf_Shdr *Sec, 617 ScopedPrinter &W) { 618 using VerNeed = typename ELFO::Elf_Verneed; 619 using VernAux = typename ELFO::Elf_Vernaux; 620 621 DictScope SD(W, "SHT_GNU_verneed"); 622 if (!Sec) 623 return; 624 625 unsigned VerNeedNum = 0; 626 for (const typename ELFO::Elf_Dyn &Dyn : Dumper->dynamic_table()) 627 if (Dyn.d_tag == DT_VERNEEDNUM) 628 VerNeedNum = Dyn.d_un.d_val; 629 630 const uint8_t *SecData = (const uint8_t *)Obj->base() + Sec->sh_offset; 631 const typename ELFO::Elf_Shdr *StrTab = 632 unwrapOrError(Obj->getSection(Sec->sh_link)); 633 634 const uint8_t *P = SecData; 635 for (unsigned I = 0; I < VerNeedNum; ++I) { 636 const VerNeed *Need = reinterpret_cast<const VerNeed *>(P); 637 DictScope Entry(W, "Dependency"); 638 W.printNumber("Version", Need->vn_version); 639 W.printNumber("Count", Need->vn_cnt); 640 W.printString("FileName", 641 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 642 Need->vn_file))); 643 644 const uint8_t *PAux = P + Need->vn_aux; 645 for (unsigned J = 0; J < Need->vn_cnt; ++J) { 646 const VernAux *Aux = reinterpret_cast<const VernAux *>(PAux); 647 DictScope Entry(W, "Entry"); 648 W.printNumber("Hash", Aux->vna_hash); 649 W.printEnum("Flags", Aux->vna_flags, makeArrayRef(SymVersionFlags)); 650 W.printNumber("Index", Aux->vna_other); 651 W.printString("Name", 652 StringRef((const char *)(Obj->base() + StrTab->sh_offset + 653 Aux->vna_name))); 654 PAux += Aux->vna_next; 655 } 656 P += Need->vn_next; 657 } 658 } 659 660 template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() { 661 // Dump version symbol section. 662 printVersionSymbolSection(this, Obj, dot_gnu_version_sec, W); 663 664 // Dump version definition section. 665 printVersionDefinitionSection(this, Obj, dot_gnu_version_d_sec, W); 666 667 // Dump version dependency section. 668 printVersionDependencySection(this, Obj, dot_gnu_version_r_sec, W); 669 } 670 671 template <typename ELFT> 672 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab, 673 const Elf_Sym *symb, 674 bool &IsDefault) const { 675 // This is a dynamic symbol. Look in the GNU symbol version table. 676 if (!dot_gnu_version_sec) { 677 // No version table. 678 IsDefault = false; 679 return StringRef(""); 680 } 681 682 // Determine the position in the symbol table of this entry. 683 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) - 684 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) / 685 sizeof(Elf_Sym); 686 687 // Get the corresponding version index entry 688 const Elf_Versym *vs = unwrapOrError( 689 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index)); 690 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION; 691 692 // Special markers for unversioned symbols. 693 if (version_index == ELF::VER_NDX_LOCAL || 694 version_index == ELF::VER_NDX_GLOBAL) { 695 IsDefault = false; 696 return StringRef(""); 697 } 698 699 // Lookup this symbol in the version table 700 LoadVersionMap(); 701 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull()) 702 reportError("Invalid version entry"); 703 const VersionMapEntry &entry = VersionMap[version_index]; 704 705 // Get the version name string 706 size_t name_offset; 707 if (entry.isVerdef()) { 708 // The first Verdaux entry holds the name. 709 name_offset = entry.getVerdef()->getAux()->vda_name; 710 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN); 711 } else { 712 name_offset = entry.getVernaux()->vna_name; 713 IsDefault = false; 714 } 715 if (name_offset >= StrTab.size()) 716 reportError("Invalid string offset"); 717 return StringRef(StrTab.data() + name_offset); 718 } 719 720 template <typename ELFT> 721 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol, 722 StringRef StrTable, 723 bool IsDynamic) const { 724 StringRef SymbolName = unwrapOrError(Symbol->getName(StrTable)); 725 if (!IsDynamic) 726 return SymbolName; 727 728 std::string FullSymbolName(SymbolName); 729 730 bool IsDefault; 731 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault); 732 FullSymbolName += (IsDefault ? "@@" : "@"); 733 FullSymbolName += Version; 734 return FullSymbolName; 735 } 736 737 template <typename ELFT> 738 static void 739 getSectionNameIndex(const ELFFile<ELFT> &Obj, const typename ELFT::Sym *Symbol, 740 const typename ELFT::Sym *FirstSym, 741 ArrayRef<typename ELFT::Word> ShndxTable, 742 StringRef &SectionName, unsigned &SectionIndex) { 743 SectionIndex = Symbol->st_shndx; 744 if (Symbol->isUndefined()) 745 SectionName = "Undefined"; 746 else if (Symbol->isProcessorSpecific()) 747 SectionName = "Processor Specific"; 748 else if (Symbol->isOSSpecific()) 749 SectionName = "Operating System Specific"; 750 else if (Symbol->isAbsolute()) 751 SectionName = "Absolute"; 752 else if (Symbol->isCommon()) 753 SectionName = "Common"; 754 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX) 755 SectionName = "Reserved"; 756 else { 757 if (SectionIndex == SHN_XINDEX) 758 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 759 Symbol, FirstSym, ShndxTable)); 760 const typename ELFT::Shdr *Sec = 761 unwrapOrError(Obj.getSection(SectionIndex)); 762 SectionName = unwrapOrError(Obj.getSectionName(Sec)); 763 } 764 } 765 766 template <class ELFO> 767 static const typename ELFO::Elf_Shdr * 768 findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) { 769 for (const auto &Shdr : unwrapOrError(Obj->sections())) 770 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0) 771 return &Shdr; 772 return nullptr; 773 } 774 775 template <class ELFO> 776 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj, 777 StringRef Name) { 778 for (const auto &Shdr : unwrapOrError(Obj.sections())) { 779 if (Name == unwrapOrError(Obj.getSectionName(&Shdr))) 780 return &Shdr; 781 } 782 return nullptr; 783 } 784 785 static const EnumEntry<unsigned> ElfClass[] = { 786 {"None", "none", ELF::ELFCLASSNONE}, 787 {"32-bit", "ELF32", ELF::ELFCLASS32}, 788 {"64-bit", "ELF64", ELF::ELFCLASS64}, 789 }; 790 791 static const EnumEntry<unsigned> ElfDataEncoding[] = { 792 {"None", "none", ELF::ELFDATANONE}, 793 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB}, 794 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB}, 795 }; 796 797 static const EnumEntry<unsigned> ElfObjectFileType[] = { 798 {"None", "NONE (none)", ELF::ET_NONE}, 799 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL}, 800 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC}, 801 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN}, 802 {"Core", "CORE (Core file)", ELF::ET_CORE}, 803 }; 804 805 static const EnumEntry<unsigned> ElfOSABI[] = { 806 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE}, 807 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX}, 808 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD}, 809 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX}, 810 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD}, 811 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS}, 812 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX}, 813 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX}, 814 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD}, 815 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64}, 816 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO}, 817 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD}, 818 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS}, 819 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK}, 820 {"AROS", "AROS", ELF::ELFOSABI_AROS}, 821 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS}, 822 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI}, 823 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI}, 824 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}, 825 {"ARM", "ARM", ELF::ELFOSABI_ARM}, 826 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE} 827 }; 828 829 static const EnumEntry<unsigned> ElfMachineType[] = { 830 ENUM_ENT(EM_NONE, "None"), 831 ENUM_ENT(EM_M32, "WE32100"), 832 ENUM_ENT(EM_SPARC, "Sparc"), 833 ENUM_ENT(EM_386, "Intel 80386"), 834 ENUM_ENT(EM_68K, "MC68000"), 835 ENUM_ENT(EM_88K, "MC88000"), 836 ENUM_ENT(EM_IAMCU, "EM_IAMCU"), 837 ENUM_ENT(EM_860, "Intel 80860"), 838 ENUM_ENT(EM_MIPS, "MIPS R3000"), 839 ENUM_ENT(EM_S370, "IBM System/370"), 840 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"), 841 ENUM_ENT(EM_PARISC, "HPPA"), 842 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"), 843 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"), 844 ENUM_ENT(EM_960, "Intel 80960"), 845 ENUM_ENT(EM_PPC, "PowerPC"), 846 ENUM_ENT(EM_PPC64, "PowerPC64"), 847 ENUM_ENT(EM_S390, "IBM S/390"), 848 ENUM_ENT(EM_SPU, "SPU"), 849 ENUM_ENT(EM_V800, "NEC V800 series"), 850 ENUM_ENT(EM_FR20, "Fujistsu FR20"), 851 ENUM_ENT(EM_RH32, "TRW RH-32"), 852 ENUM_ENT(EM_RCE, "Motorola RCE"), 853 ENUM_ENT(EM_ARM, "ARM"), 854 ENUM_ENT(EM_ALPHA, "EM_ALPHA"), 855 ENUM_ENT(EM_SH, "Hitachi SH"), 856 ENUM_ENT(EM_SPARCV9, "Sparc v9"), 857 ENUM_ENT(EM_TRICORE, "Siemens Tricore"), 858 ENUM_ENT(EM_ARC, "ARC"), 859 ENUM_ENT(EM_H8_300, "Hitachi H8/300"), 860 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"), 861 ENUM_ENT(EM_H8S, "Hitachi H8S"), 862 ENUM_ENT(EM_H8_500, "Hitachi H8/500"), 863 ENUM_ENT(EM_IA_64, "Intel IA-64"), 864 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"), 865 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"), 866 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"), 867 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"), 868 ENUM_ENT(EM_PCP, "Siemens PCP"), 869 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"), 870 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"), 871 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"), 872 ENUM_ENT(EM_ME16, "Toyota ME16 processor"), 873 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"), 874 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"), 875 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"), 876 ENUM_ENT(EM_PDSP, "Sony DSP processor"), 877 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"), 878 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"), 879 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"), 880 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"), 881 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"), 882 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"), 883 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"), 884 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"), 885 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"), 886 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"), 887 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"), 888 ENUM_ENT(EM_VAX, "Digital VAX"), 889 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"), 890 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"), 891 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"), 892 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"), 893 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"), 894 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"), 895 ENUM_ENT(EM_PRISM, "Vitesse Prism"), 896 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"), 897 ENUM_ENT(EM_FR30, "Fujitsu FR30"), 898 ENUM_ENT(EM_D10V, "Mitsubishi D10V"), 899 ENUM_ENT(EM_D30V, "Mitsubishi D30V"), 900 ENUM_ENT(EM_V850, "NEC v850"), 901 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"), 902 ENUM_ENT(EM_MN10300, "Matsushita MN10300"), 903 ENUM_ENT(EM_MN10200, "Matsushita MN10200"), 904 ENUM_ENT(EM_PJ, "picoJava"), 905 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"), 906 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"), 907 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"), 908 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"), 909 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"), 910 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"), 911 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"), 912 ENUM_ENT(EM_SNP1K, "EM_SNP1K"), 913 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"), 914 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"), 915 ENUM_ENT(EM_MAX, "MAX Processor"), 916 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"), 917 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"), 918 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"), 919 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"), 920 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"), 921 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"), 922 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"), 923 ENUM_ENT(EM_UNICORE, "Unicore"), 924 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"), 925 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"), 926 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"), 927 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"), 928 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"), 929 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"), 930 ENUM_ENT(EM_M16C, "Renesas M16C"), 931 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"), 932 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"), 933 ENUM_ENT(EM_M32C, "Renesas M32C"), 934 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"), 935 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"), 936 ENUM_ENT(EM_SHARC, "EM_SHARC"), 937 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"), 938 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"), 939 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"), 940 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"), 941 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"), 942 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"), 943 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"), 944 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"), 945 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"), 946 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"), 947 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"), 948 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"), 949 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"), 950 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"), 951 ENUM_ENT(EM_8051, "Intel 8051 and variants"), 952 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"), 953 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"), 954 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"), 955 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"), 956 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"), 957 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"), 958 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"), 959 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"), 960 ENUM_ENT(EM_RX, "Renesas RX"), 961 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"), 962 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"), 963 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"), 964 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"), 965 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"), 966 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"), 967 ENUM_ENT(EM_L10M, "EM_L10M"), 968 ENUM_ENT(EM_K10M, "EM_K10M"), 969 ENUM_ENT(EM_AARCH64, "AArch64"), 970 ENUM_ENT(EM_AVR32, "Atmel AVR 8-bit microcontroller"), 971 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"), 972 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"), 973 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"), 974 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"), 975 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"), 976 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"), 977 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"), 978 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"), 979 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"), 980 ENUM_ENT(EM_OPEN8, "EM_OPEN8"), 981 ENUM_ENT(EM_RL78, "Renesas RL78"), 982 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"), 983 ENUM_ENT(EM_78KOR, "EM_78KOR"), 984 ENUM_ENT(EM_56800EX, "EM_56800EX"), 985 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"), 986 ENUM_ENT(EM_RISCV, "RISC-V"), 987 ENUM_ENT(EM_WEBASSEMBLY, "EM_WEBASSEMBLY"), 988 ENUM_ENT(EM_LANAI, "EM_LANAI"), 989 ENUM_ENT(EM_BPF, "EM_BPF"), 990 }; 991 992 static const EnumEntry<unsigned> ElfSymbolBindings[] = { 993 {"Local", "LOCAL", ELF::STB_LOCAL}, 994 {"Global", "GLOBAL", ELF::STB_GLOBAL}, 995 {"Weak", "WEAK", ELF::STB_WEAK}, 996 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}}; 997 998 static const EnumEntry<unsigned> ElfSymbolVisibilities[] = { 999 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT}, 1000 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL}, 1001 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN}, 1002 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}}; 1003 1004 static const EnumEntry<unsigned> ElfSymbolTypes[] = { 1005 {"None", "NOTYPE", ELF::STT_NOTYPE}, 1006 {"Object", "OBJECT", ELF::STT_OBJECT}, 1007 {"Function", "FUNC", ELF::STT_FUNC}, 1008 {"Section", "SECTION", ELF::STT_SECTION}, 1009 {"File", "FILE", ELF::STT_FILE}, 1010 {"Common", "COMMON", ELF::STT_COMMON}, 1011 {"TLS", "TLS", ELF::STT_TLS}, 1012 {"GNU_IFunc", "IFUNC", ELF::STT_GNU_IFUNC}}; 1013 1014 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = { 1015 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL } 1016 }; 1017 1018 static const char *getGroupType(uint32_t Flag) { 1019 if (Flag & ELF::GRP_COMDAT) 1020 return "COMDAT"; 1021 else 1022 return "(unknown)"; 1023 } 1024 1025 static const EnumEntry<unsigned> ElfSectionFlags[] = { 1026 ENUM_ENT(SHF_WRITE, "W"), 1027 ENUM_ENT(SHF_ALLOC, "A"), 1028 ENUM_ENT(SHF_EXCLUDE, "E"), 1029 ENUM_ENT(SHF_EXECINSTR, "X"), 1030 ENUM_ENT(SHF_MERGE, "M"), 1031 ENUM_ENT(SHF_STRINGS, "S"), 1032 ENUM_ENT(SHF_INFO_LINK, "I"), 1033 ENUM_ENT(SHF_LINK_ORDER, "L"), 1034 ENUM_ENT(SHF_OS_NONCONFORMING, "o"), 1035 ENUM_ENT(SHF_GROUP, "G"), 1036 ENUM_ENT(SHF_TLS, "T"), 1037 ENUM_ENT(SHF_MASKOS, "o"), 1038 ENUM_ENT(SHF_MASKPROC, "p"), 1039 ENUM_ENT_1(SHF_COMPRESSED), 1040 }; 1041 1042 static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = { 1043 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 1044 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION) 1045 }; 1046 1047 static const EnumEntry<unsigned> ElfARMSectionFlags[] = { 1048 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE) 1049 }; 1050 1051 static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = { 1052 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL) 1053 }; 1054 1055 static const EnumEntry<unsigned> ElfMipsSectionFlags[] = { 1056 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES), 1057 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ), 1058 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ), 1059 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP), 1060 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ), 1061 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ), 1062 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ), 1063 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING ) 1064 }; 1065 1066 static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = { 1067 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE) 1068 }; 1069 1070 static std::string getGNUFlags(uint64_t Flags) { 1071 std::string Str; 1072 for (auto Entry : ElfSectionFlags) { 1073 uint64_t Flag = Entry.Value & Flags; 1074 Flags &= ~Entry.Value; 1075 switch (Flag) { 1076 case ELF::SHF_WRITE: 1077 case ELF::SHF_ALLOC: 1078 case ELF::SHF_EXECINSTR: 1079 case ELF::SHF_MERGE: 1080 case ELF::SHF_STRINGS: 1081 case ELF::SHF_INFO_LINK: 1082 case ELF::SHF_LINK_ORDER: 1083 case ELF::SHF_OS_NONCONFORMING: 1084 case ELF::SHF_GROUP: 1085 case ELF::SHF_TLS: 1086 case ELF::SHF_EXCLUDE: 1087 Str += Entry.AltName; 1088 break; 1089 default: 1090 if (Flag & ELF::SHF_MASKOS) 1091 Str += "o"; 1092 else if (Flag & ELF::SHF_MASKPROC) 1093 Str += "p"; 1094 else if (Flag) 1095 Str += "x"; 1096 } 1097 } 1098 return Str; 1099 } 1100 1101 static const char *getElfSegmentType(unsigned Arch, unsigned Type) { 1102 // Check potentially overlapped processor-specific 1103 // program header type. 1104 switch (Arch) { 1105 case ELF::EM_ARM: 1106 switch (Type) { 1107 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); 1108 } 1109 case ELF::EM_MIPS: 1110 case ELF::EM_MIPS_RS3_LE: 1111 switch (Type) { 1112 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO); 1113 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC); 1114 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS); 1115 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS); 1116 } 1117 } 1118 1119 switch (Type) { 1120 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL ); 1121 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD ); 1122 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC); 1123 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP ); 1124 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE ); 1125 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB ); 1126 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR ); 1127 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS ); 1128 1129 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME); 1130 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND); 1131 1132 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK); 1133 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO); 1134 1135 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE); 1136 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED); 1137 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA); 1138 1139 default: return ""; 1140 } 1141 } 1142 1143 static std::string getElfPtType(unsigned Arch, unsigned Type) { 1144 switch (Type) { 1145 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL) 1146 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD) 1147 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC) 1148 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP) 1149 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE) 1150 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB) 1151 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR) 1152 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS) 1153 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME) 1154 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND) 1155 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK) 1156 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO) 1157 default: 1158 // All machine specific PT_* types 1159 switch (Arch) { 1160 case ELF::EM_ARM: 1161 if (Type == ELF::PT_ARM_EXIDX) 1162 return "EXIDX"; 1163 return ""; 1164 case ELF::EM_MIPS: 1165 case ELF::EM_MIPS_RS3_LE: 1166 switch (Type) { 1167 case PT_MIPS_REGINFO: 1168 return "REGINFO"; 1169 case PT_MIPS_RTPROC: 1170 return "RTPROC"; 1171 case PT_MIPS_OPTIONS: 1172 return "OPTIONS"; 1173 case PT_MIPS_ABIFLAGS: 1174 return "ABIFLAGS"; 1175 } 1176 return ""; 1177 } 1178 } 1179 return std::string("<unknown>: ") + to_string(format_hex(Type, 1)); 1180 } 1181 1182 static const EnumEntry<unsigned> ElfSegmentFlags[] = { 1183 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 1184 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 1185 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 1186 }; 1187 1188 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = { 1189 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER), 1190 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC), 1191 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC), 1192 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2), 1193 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE), 1194 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64), 1195 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008), 1196 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32), 1197 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64), 1198 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32), 1199 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64), 1200 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900), 1201 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010), 1202 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100), 1203 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650), 1204 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120), 1205 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111), 1206 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1), 1207 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON), 1208 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR), 1209 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2), 1210 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3), 1211 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400), 1212 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900), 1213 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500), 1214 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000), 1215 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E), 1216 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F), 1217 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A), 1218 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS), 1219 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16), 1220 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX), 1221 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1), 1222 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2), 1223 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3), 1224 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4), 1225 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5), 1226 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32), 1227 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64), 1228 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2), 1229 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2), 1230 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6), 1231 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6) 1232 }; 1233 1234 static const EnumEntry<unsigned> ElfSymOtherFlags[] = { 1235 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL), 1236 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN), 1237 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED) 1238 }; 1239 1240 static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = { 1241 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1242 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1243 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC), 1244 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS) 1245 }; 1246 1247 static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = { 1248 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL), 1249 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT), 1250 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16) 1251 }; 1252 1253 static const char *getElfMipsOptionsOdkType(unsigned Odk) { 1254 switch (Odk) { 1255 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL); 1256 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO); 1257 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS); 1258 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD); 1259 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH); 1260 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL); 1261 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS); 1262 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND); 1263 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR); 1264 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP); 1265 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT); 1266 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE); 1267 default: 1268 return "Unknown"; 1269 } 1270 } 1271 1272 template <typename ELFT> 1273 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, ScopedPrinter &Writer) 1274 : ObjDumper(Writer), Obj(Obj) { 1275 SmallVector<const Elf_Phdr *, 4> LoadSegments; 1276 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 1277 if (Phdr.p_type == ELF::PT_DYNAMIC) { 1278 DynamicTable = createDRIFrom(&Phdr, sizeof(Elf_Dyn)); 1279 continue; 1280 } 1281 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0) 1282 continue; 1283 LoadSegments.push_back(&Phdr); 1284 } 1285 1286 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1287 switch (Sec.sh_type) { 1288 case ELF::SHT_SYMTAB: 1289 if (DotSymtabSec != nullptr) 1290 reportError("Multilpe SHT_SYMTAB"); 1291 DotSymtabSec = &Sec; 1292 break; 1293 case ELF::SHT_DYNSYM: 1294 if (DynSymRegion.Size) 1295 reportError("Multilpe SHT_DYNSYM"); 1296 DynSymRegion = createDRIFrom(&Sec); 1297 // This is only used (if Elf_Shdr present)for naming section in GNU style 1298 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec)); 1299 break; 1300 case ELF::SHT_SYMTAB_SHNDX: 1301 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec)); 1302 break; 1303 case ELF::SHT_GNU_versym: 1304 if (dot_gnu_version_sec != nullptr) 1305 reportError("Multiple SHT_GNU_versym"); 1306 dot_gnu_version_sec = &Sec; 1307 break; 1308 case ELF::SHT_GNU_verdef: 1309 if (dot_gnu_version_d_sec != nullptr) 1310 reportError("Multiple SHT_GNU_verdef"); 1311 dot_gnu_version_d_sec = &Sec; 1312 break; 1313 case ELF::SHT_GNU_verneed: 1314 if (dot_gnu_version_r_sec != nullptr) 1315 reportError("Multilpe SHT_GNU_verneed"); 1316 dot_gnu_version_r_sec = &Sec; 1317 break; 1318 } 1319 } 1320 1321 parseDynamicTable(LoadSegments); 1322 1323 if (opts::Output == opts::GNU) 1324 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this)); 1325 else 1326 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this)); 1327 } 1328 1329 template <typename ELFT> 1330 void ELFDumper<ELFT>::parseDynamicTable( 1331 ArrayRef<const Elf_Phdr *> LoadSegments) { 1332 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * { 1333 const Elf_Phdr *const *I = std::upper_bound( 1334 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>); 1335 if (I == LoadSegments.begin()) 1336 report_fatal_error("Virtual address is not in any segment"); 1337 --I; 1338 const Elf_Phdr &Phdr = **I; 1339 uint64_t Delta = VAddr - Phdr.p_vaddr; 1340 if (Delta >= Phdr.p_filesz) 1341 report_fatal_error("Virtual address is not in any segment"); 1342 return Obj->base() + Phdr.p_offset + Delta; 1343 }; 1344 1345 uint64_t SONameOffset = 0; 1346 const char *StringTableBegin = nullptr; 1347 uint64_t StringTableSize = 0; 1348 for (const Elf_Dyn &Dyn : dynamic_table()) { 1349 switch (Dyn.d_tag) { 1350 case ELF::DT_HASH: 1351 HashTable = 1352 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr())); 1353 break; 1354 case ELF::DT_GNU_HASH: 1355 GnuHashTable = 1356 reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr())); 1357 break; 1358 case ELF::DT_STRTAB: 1359 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr()); 1360 break; 1361 case ELF::DT_STRSZ: 1362 StringTableSize = Dyn.getVal(); 1363 break; 1364 case ELF::DT_SYMTAB: 1365 DynSymRegion.Addr = toMappedAddr(Dyn.getPtr()); 1366 DynSymRegion.EntSize = sizeof(Elf_Sym); 1367 break; 1368 case ELF::DT_RELA: 1369 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr()); 1370 break; 1371 case ELF::DT_RELASZ: 1372 DynRelaRegion.Size = Dyn.getVal(); 1373 break; 1374 case ELF::DT_RELAENT: 1375 DynRelaRegion.EntSize = Dyn.getVal(); 1376 break; 1377 case ELF::DT_SONAME: 1378 SONameOffset = Dyn.getVal(); 1379 break; 1380 case ELF::DT_REL: 1381 DynRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1382 break; 1383 case ELF::DT_RELSZ: 1384 DynRelRegion.Size = Dyn.getVal(); 1385 break; 1386 case ELF::DT_RELENT: 1387 DynRelRegion.EntSize = Dyn.getVal(); 1388 break; 1389 case ELF::DT_PLTREL: 1390 if (Dyn.getVal() == DT_REL) 1391 DynPLTRelRegion.EntSize = sizeof(Elf_Rel); 1392 else if (Dyn.getVal() == DT_RELA) 1393 DynPLTRelRegion.EntSize = sizeof(Elf_Rela); 1394 else 1395 reportError(Twine("unknown DT_PLTREL value of ") + 1396 Twine((uint64_t)Dyn.getVal())); 1397 break; 1398 case ELF::DT_JMPREL: 1399 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getPtr()); 1400 break; 1401 case ELF::DT_PLTRELSZ: 1402 DynPLTRelRegion.Size = Dyn.getVal(); 1403 break; 1404 } 1405 } 1406 if (StringTableBegin) 1407 DynamicStringTable = StringRef(StringTableBegin, StringTableSize); 1408 if (SONameOffset) 1409 SOName = getDynamicString(SONameOffset); 1410 } 1411 1412 template <typename ELFT> 1413 typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const { 1414 return DynRelRegion.getAsArrayRef<Elf_Rel>(); 1415 } 1416 1417 template <typename ELFT> 1418 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const { 1419 return DynRelaRegion.getAsArrayRef<Elf_Rela>(); 1420 } 1421 1422 template<class ELFT> 1423 void ELFDumper<ELFT>::printFileHeaders() { 1424 ELFDumperStyle->printFileHeaders(Obj); 1425 } 1426 1427 template<class ELFT> 1428 void ELFDumper<ELFT>::printSections() { 1429 ELFDumperStyle->printSections(Obj); 1430 } 1431 1432 template<class ELFT> 1433 void ELFDumper<ELFT>::printRelocations() { 1434 ELFDumperStyle->printRelocations(Obj); 1435 } 1436 1437 template <class ELFT> void ELFDumper<ELFT>::printProgramHeaders() { 1438 ELFDumperStyle->printProgramHeaders(Obj); 1439 } 1440 1441 template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() { 1442 ELFDumperStyle->printDynamicRelocations(Obj); 1443 } 1444 1445 template<class ELFT> 1446 void ELFDumper<ELFT>::printSymbols() { 1447 ELFDumperStyle->printSymbols(Obj); 1448 } 1449 1450 template<class ELFT> 1451 void ELFDumper<ELFT>::printDynamicSymbols() { 1452 ELFDumperStyle->printDynamicSymbols(Obj); 1453 } 1454 1455 template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() { 1456 ELFDumperStyle->printHashHistogram(Obj); 1457 } 1458 1459 template <class ELFT> void ELFDumper<ELFT>::printNotes() { 1460 ELFDumperStyle->printNotes(Obj); 1461 } 1462 1463 #define LLVM_READOBJ_TYPE_CASE(name) \ 1464 case DT_##name: return #name 1465 1466 static const char *getTypeString(unsigned Arch, uint64_t Type) { 1467 switch (Arch) { 1468 case EM_HEXAGON: 1469 switch (Type) { 1470 LLVM_READOBJ_TYPE_CASE(HEXAGON_SYMSZ); 1471 LLVM_READOBJ_TYPE_CASE(HEXAGON_VER); 1472 LLVM_READOBJ_TYPE_CASE(HEXAGON_PLT); 1473 } 1474 case EM_MIPS: 1475 switch (Type) { 1476 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL); 1477 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION); 1478 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS); 1479 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS); 1480 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO); 1481 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO); 1482 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO); 1483 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM); 1484 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP); 1485 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT); 1486 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS); 1487 } 1488 } 1489 switch (Type) { 1490 LLVM_READOBJ_TYPE_CASE(BIND_NOW); 1491 LLVM_READOBJ_TYPE_CASE(DEBUG); 1492 LLVM_READOBJ_TYPE_CASE(FINI); 1493 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY); 1494 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ); 1495 LLVM_READOBJ_TYPE_CASE(FLAGS); 1496 LLVM_READOBJ_TYPE_CASE(FLAGS_1); 1497 LLVM_READOBJ_TYPE_CASE(HASH); 1498 LLVM_READOBJ_TYPE_CASE(INIT); 1499 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY); 1500 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ); 1501 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY); 1502 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ); 1503 LLVM_READOBJ_TYPE_CASE(JMPREL); 1504 LLVM_READOBJ_TYPE_CASE(NEEDED); 1505 LLVM_READOBJ_TYPE_CASE(NULL); 1506 LLVM_READOBJ_TYPE_CASE(PLTGOT); 1507 LLVM_READOBJ_TYPE_CASE(PLTREL); 1508 LLVM_READOBJ_TYPE_CASE(PLTRELSZ); 1509 LLVM_READOBJ_TYPE_CASE(REL); 1510 LLVM_READOBJ_TYPE_CASE(RELA); 1511 LLVM_READOBJ_TYPE_CASE(RELENT); 1512 LLVM_READOBJ_TYPE_CASE(RELSZ); 1513 LLVM_READOBJ_TYPE_CASE(RELAENT); 1514 LLVM_READOBJ_TYPE_CASE(RELASZ); 1515 LLVM_READOBJ_TYPE_CASE(RPATH); 1516 LLVM_READOBJ_TYPE_CASE(RUNPATH); 1517 LLVM_READOBJ_TYPE_CASE(SONAME); 1518 LLVM_READOBJ_TYPE_CASE(STRSZ); 1519 LLVM_READOBJ_TYPE_CASE(STRTAB); 1520 LLVM_READOBJ_TYPE_CASE(SYMBOLIC); 1521 LLVM_READOBJ_TYPE_CASE(SYMENT); 1522 LLVM_READOBJ_TYPE_CASE(SYMTAB); 1523 LLVM_READOBJ_TYPE_CASE(TEXTREL); 1524 LLVM_READOBJ_TYPE_CASE(VERDEF); 1525 LLVM_READOBJ_TYPE_CASE(VERDEFNUM); 1526 LLVM_READOBJ_TYPE_CASE(VERNEED); 1527 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM); 1528 LLVM_READOBJ_TYPE_CASE(VERSYM); 1529 LLVM_READOBJ_TYPE_CASE(RELACOUNT); 1530 LLVM_READOBJ_TYPE_CASE(RELCOUNT); 1531 LLVM_READOBJ_TYPE_CASE(GNU_HASH); 1532 LLVM_READOBJ_TYPE_CASE(TLSDESC_PLT); 1533 LLVM_READOBJ_TYPE_CASE(TLSDESC_GOT); 1534 LLVM_READOBJ_TYPE_CASE(AUXILIARY); 1535 default: return "unknown"; 1536 } 1537 } 1538 1539 #undef LLVM_READOBJ_TYPE_CASE 1540 1541 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \ 1542 { #enum, prefix##_##enum } 1543 1544 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = { 1545 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN), 1546 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC), 1547 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL), 1548 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW), 1549 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS) 1550 }; 1551 1552 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = { 1553 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW), 1554 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL), 1555 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP), 1556 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE), 1557 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR), 1558 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST), 1559 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN), 1560 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN), 1561 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT), 1562 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS), 1563 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE), 1564 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB), 1565 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP), 1566 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT), 1567 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE), 1568 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE), 1569 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT), 1570 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF), 1571 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS), 1572 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR), 1573 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED), 1574 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC), 1575 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE), 1576 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT), 1577 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON) 1578 }; 1579 1580 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = { 1581 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE), 1582 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART), 1583 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT), 1584 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT), 1585 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE), 1586 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY), 1587 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT), 1588 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS), 1589 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT), 1590 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE), 1591 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD), 1592 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART), 1593 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED), 1594 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD), 1595 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF), 1596 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE) 1597 }; 1598 1599 #undef LLVM_READOBJ_DT_FLAG_ENT 1600 1601 template <typename T, typename TFlag> 1602 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) { 1603 using FlagEntry = EnumEntry<TFlag>; 1604 using FlagVector = SmallVector<FlagEntry, 10>; 1605 FlagVector SetFlags; 1606 1607 for (const auto &Flag : Flags) { 1608 if (Flag.Value == 0) 1609 continue; 1610 1611 if ((Value & Flag.Value) == Flag.Value) 1612 SetFlags.push_back(Flag); 1613 } 1614 1615 for (const auto &Flag : SetFlags) { 1616 OS << Flag.Name << " "; 1617 } 1618 } 1619 1620 template <class ELFT> 1621 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const { 1622 if (Value >= DynamicStringTable.size()) 1623 reportError("Invalid dynamic string table reference"); 1624 return StringRef(DynamicStringTable.data() + Value); 1625 } 1626 1627 template <class ELFT> 1628 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) { 1629 raw_ostream &OS = W.getOStream(); 1630 const char* ConvChar = (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64; 1631 switch (Type) { 1632 case DT_PLTREL: 1633 if (Value == DT_REL) { 1634 OS << "REL"; 1635 break; 1636 } else if (Value == DT_RELA) { 1637 OS << "RELA"; 1638 break; 1639 } 1640 LLVM_FALLTHROUGH; 1641 case DT_PLTGOT: 1642 case DT_HASH: 1643 case DT_STRTAB: 1644 case DT_SYMTAB: 1645 case DT_RELA: 1646 case DT_INIT: 1647 case DT_FINI: 1648 case DT_REL: 1649 case DT_JMPREL: 1650 case DT_INIT_ARRAY: 1651 case DT_FINI_ARRAY: 1652 case DT_PREINIT_ARRAY: 1653 case DT_DEBUG: 1654 case DT_VERDEF: 1655 case DT_VERNEED: 1656 case DT_VERSYM: 1657 case DT_GNU_HASH: 1658 case DT_NULL: 1659 case DT_MIPS_BASE_ADDRESS: 1660 case DT_MIPS_GOTSYM: 1661 case DT_MIPS_RLD_MAP: 1662 case DT_MIPS_RLD_MAP_REL: 1663 case DT_MIPS_PLTGOT: 1664 case DT_MIPS_OPTIONS: 1665 OS << format(ConvChar, Value); 1666 break; 1667 case DT_RELACOUNT: 1668 case DT_RELCOUNT: 1669 case DT_VERDEFNUM: 1670 case DT_VERNEEDNUM: 1671 case DT_MIPS_RLD_VERSION: 1672 case DT_MIPS_LOCAL_GOTNO: 1673 case DT_MIPS_SYMTABNO: 1674 case DT_MIPS_UNREFEXTNO: 1675 OS << Value; 1676 break; 1677 case DT_PLTRELSZ: 1678 case DT_RELASZ: 1679 case DT_RELAENT: 1680 case DT_STRSZ: 1681 case DT_SYMENT: 1682 case DT_RELSZ: 1683 case DT_RELENT: 1684 case DT_INIT_ARRAYSZ: 1685 case DT_FINI_ARRAYSZ: 1686 case DT_PREINIT_ARRAYSZ: 1687 OS << Value << " (bytes)"; 1688 break; 1689 case DT_NEEDED: 1690 OS << "SharedLibrary (" << getDynamicString(Value) << ")"; 1691 break; 1692 case DT_SONAME: 1693 OS << "LibrarySoname (" << getDynamicString(Value) << ")"; 1694 break; 1695 case DT_AUXILIARY: 1696 OS << "Auxiliary library: [" << getDynamicString(Value) << "]"; 1697 break; 1698 case DT_RPATH: 1699 case DT_RUNPATH: 1700 OS << getDynamicString(Value); 1701 break; 1702 case DT_MIPS_FLAGS: 1703 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS); 1704 break; 1705 case DT_FLAGS: 1706 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS); 1707 break; 1708 case DT_FLAGS_1: 1709 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS); 1710 break; 1711 default: 1712 OS << format(ConvChar, Value); 1713 break; 1714 } 1715 } 1716 1717 template<class ELFT> 1718 void ELFDumper<ELFT>::printUnwindInfo() { 1719 W.startLine() << "UnwindInfo not implemented.\n"; 1720 } 1721 1722 namespace { 1723 1724 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() { 1725 const unsigned Machine = Obj->getHeader()->e_machine; 1726 if (Machine == EM_ARM) { 1727 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx( 1728 W, Obj, DotSymtabSec); 1729 return Ctx.PrintUnwindInformation(); 1730 } 1731 W.startLine() << "UnwindInfo not implemented.\n"; 1732 } 1733 1734 } // end anonymous namespace 1735 1736 template<class ELFT> 1737 void ELFDumper<ELFT>::printDynamicTable() { 1738 auto I = dynamic_table().begin(); 1739 auto E = dynamic_table().end(); 1740 1741 if (I == E) 1742 return; 1743 1744 --E; 1745 while (I != E && E->getTag() == ELF::DT_NULL) 1746 --E; 1747 if (E->getTag() != ELF::DT_NULL) 1748 ++E; 1749 ++E; 1750 1751 ptrdiff_t Total = std::distance(I, E); 1752 if (Total == 0) 1753 return; 1754 1755 raw_ostream &OS = W.getOStream(); 1756 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 1757 1758 bool Is64 = ELFT::Is64Bits; 1759 1760 W.startLine() 1761 << " Tag" << (Is64 ? " " : " ") << "Type" 1762 << " " << "Name/Value\n"; 1763 while (I != E) { 1764 const Elf_Dyn &Entry = *I; 1765 uintX_t Tag = Entry.getTag(); 1766 ++I; 1767 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, opts::Output != opts::GNU) << " " 1768 << format("%-21s", getTypeString(Obj->getHeader()->e_machine, Tag)); 1769 printValue(Tag, Entry.getVal()); 1770 OS << "\n"; 1771 } 1772 1773 W.startLine() << "]\n"; 1774 } 1775 1776 template<class ELFT> 1777 void ELFDumper<ELFT>::printNeededLibraries() { 1778 ListScope D(W, "NeededLibraries"); 1779 1780 using LibsTy = std::vector<StringRef>; 1781 LibsTy Libs; 1782 1783 for (const auto &Entry : dynamic_table()) 1784 if (Entry.d_tag == ELF::DT_NEEDED) 1785 Libs.push_back(getDynamicString(Entry.d_un.d_val)); 1786 1787 std::stable_sort(Libs.begin(), Libs.end()); 1788 1789 for (const auto &L : Libs) { 1790 outs() << " " << L << "\n"; 1791 } 1792 } 1793 1794 1795 template <typename ELFT> 1796 void ELFDumper<ELFT>::printHashTable() { 1797 DictScope D(W, "HashTable"); 1798 if (!HashTable) 1799 return; 1800 W.printNumber("Num Buckets", HashTable->nbucket); 1801 W.printNumber("Num Chains", HashTable->nchain); 1802 W.printList("Buckets", HashTable->buckets()); 1803 W.printList("Chains", HashTable->chains()); 1804 } 1805 1806 template <typename ELFT> 1807 void ELFDumper<ELFT>::printGnuHashTable() { 1808 DictScope D(W, "GnuHashTable"); 1809 if (!GnuHashTable) 1810 return; 1811 W.printNumber("Num Buckets", GnuHashTable->nbuckets); 1812 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx); 1813 W.printNumber("Num Mask Words", GnuHashTable->maskwords); 1814 W.printNumber("Shift Count", GnuHashTable->shift2); 1815 W.printHexList("Bloom Filter", GnuHashTable->filter()); 1816 W.printList("Buckets", GnuHashTable->buckets()); 1817 Elf_Sym_Range Syms = dynamic_symbols(); 1818 unsigned NumSyms = std::distance(Syms.begin(), Syms.end()); 1819 if (!NumSyms) 1820 reportError("No dynamic symbol section"); 1821 W.printHexList("Values", GnuHashTable->values(NumSyms)); 1822 } 1823 1824 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() { 1825 outs() << "LoadName: " << SOName << '\n'; 1826 } 1827 1828 template <class ELFT> 1829 void ELFDumper<ELFT>::printAttributes() { 1830 W.startLine() << "Attributes not implemented.\n"; 1831 } 1832 1833 namespace { 1834 1835 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() { 1836 if (Obj->getHeader()->e_machine != EM_ARM) { 1837 W.startLine() << "Attributes not implemented.\n"; 1838 return; 1839 } 1840 1841 DictScope BA(W, "BuildAttributes"); 1842 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 1843 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES) 1844 continue; 1845 1846 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec)); 1847 if (Contents[0] != ARMBuildAttrs::Format_Version) { 1848 errs() << "unrecognised FormatVersion: 0x" << utohexstr(Contents[0]) 1849 << '\n'; 1850 continue; 1851 } 1852 1853 W.printHex("FormatVersion", Contents[0]); 1854 if (Contents.size() == 1) 1855 continue; 1856 1857 ARMAttributeParser(&W).Parse(Contents, true); 1858 } 1859 } 1860 1861 template <class ELFT> class MipsGOTParser { 1862 public: 1863 TYPEDEF_ELF_TYPES(ELFT) 1864 using GOTEntry = typename ELFO::Elf_Addr; 1865 1866 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 1867 Elf_Dyn_Range DynTable, ScopedPrinter &W); 1868 1869 void parseGOT(); 1870 void parsePLT(); 1871 1872 private: 1873 ELFDumper<ELFT> *Dumper; 1874 const ELFO *Obj; 1875 ScopedPrinter &W; 1876 Optional<uint64_t> DtPltGot; 1877 Optional<uint64_t> DtLocalGotNum; 1878 Optional<uint64_t> DtGotSym; 1879 Optional<uint64_t> DtMipsPltGot; 1880 Optional<uint64_t> DtJmpRel; 1881 1882 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const; 1883 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum); 1884 1885 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt, 1886 const GOTEntry *It); 1887 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt, 1888 const GOTEntry *It, const Elf_Sym *Sym, 1889 StringRef StrTable, bool IsDynamic); 1890 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt, 1891 const GOTEntry *It, StringRef Purpose); 1892 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt, 1893 const GOTEntry *It, StringRef StrTable, 1894 const Elf_Sym *Sym); 1895 }; 1896 1897 } // end anonymous namespace 1898 1899 template <class ELFT> 1900 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj, 1901 Elf_Dyn_Range DynTable, ScopedPrinter &W) 1902 : Dumper(Dumper), Obj(Obj), W(W) { 1903 for (const auto &Entry : DynTable) { 1904 switch (Entry.getTag()) { 1905 case ELF::DT_PLTGOT: 1906 DtPltGot = Entry.getVal(); 1907 break; 1908 case ELF::DT_MIPS_LOCAL_GOTNO: 1909 DtLocalGotNum = Entry.getVal(); 1910 break; 1911 case ELF::DT_MIPS_GOTSYM: 1912 DtGotSym = Entry.getVal(); 1913 break; 1914 case ELF::DT_MIPS_PLTGOT: 1915 DtMipsPltGot = Entry.getVal(); 1916 break; 1917 case ELF::DT_JMPREL: 1918 DtJmpRel = Entry.getVal(); 1919 break; 1920 } 1921 } 1922 } 1923 1924 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() { 1925 // See "Global Offset Table" in Chapter 5 in the following document 1926 // for detailed GOT description. 1927 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf 1928 if (!DtPltGot) { 1929 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n"; 1930 return; 1931 } 1932 if (!DtLocalGotNum) { 1933 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n"; 1934 return; 1935 } 1936 if (!DtGotSym) { 1937 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n"; 1938 return; 1939 } 1940 1941 StringRef StrTable = Dumper->getDynamicStringTable(); 1942 const Elf_Sym *DynSymBegin = Dumper->dynamic_symbols().begin(); 1943 const Elf_Sym *DynSymEnd = Dumper->dynamic_symbols().end(); 1944 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd)); 1945 1946 if (*DtGotSym > DynSymTotal) 1947 report_fatal_error("MIPS_GOTSYM exceeds a number of dynamic symbols"); 1948 1949 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym; 1950 1951 if (*DtLocalGotNum + GlobalGotNum == 0) { 1952 W.startLine() << "GOT is empty.\n"; 1953 return; 1954 } 1955 1956 const Elf_Shdr *GOTShdr = findNotEmptySectionByAddress(Obj, *DtPltGot); 1957 if (!GOTShdr) 1958 report_fatal_error("There is no not empty GOT section at 0x" + 1959 Twine::utohexstr(*DtPltGot)); 1960 1961 ArrayRef<uint8_t> GOT = unwrapOrError(Obj->getSectionContents(GOTShdr)); 1962 1963 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(GOT)) 1964 report_fatal_error("Number of GOT entries exceeds the size of GOT section"); 1965 1966 const GOTEntry *GotBegin = makeGOTIter(GOT, 0); 1967 const GOTEntry *GotLocalEnd = makeGOTIter(GOT, *DtLocalGotNum); 1968 const GOTEntry *It = GotBegin; 1969 1970 DictScope GS(W, "Primary GOT"); 1971 1972 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0); 1973 { 1974 ListScope RS(W, "Reserved entries"); 1975 1976 { 1977 DictScope D(W, "Entry"); 1978 printGotEntry(GOTShdr->sh_addr, GotBegin, It++); 1979 W.printString("Purpose", StringRef("Lazy resolver")); 1980 } 1981 1982 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) { 1983 DictScope D(W, "Entry"); 1984 printGotEntry(GOTShdr->sh_addr, GotBegin, It++); 1985 W.printString("Purpose", StringRef("Module pointer (GNU extension)")); 1986 } 1987 } 1988 { 1989 ListScope LS(W, "Local entries"); 1990 for (; It != GotLocalEnd; ++It) { 1991 DictScope D(W, "Entry"); 1992 printGotEntry(GOTShdr->sh_addr, GotBegin, It); 1993 } 1994 } 1995 { 1996 ListScope GS(W, "Global entries"); 1997 1998 const GOTEntry *GotGlobalEnd = 1999 makeGOTIter(GOT, *DtLocalGotNum + GlobalGotNum); 2000 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym; 2001 for (; It != GotGlobalEnd; ++It) { 2002 DictScope D(W, "Entry"); 2003 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++, StrTable, 2004 true); 2005 } 2006 } 2007 2008 std::size_t SpecGotNum = getGOTTotal(GOT) - *DtLocalGotNum - GlobalGotNum; 2009 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum)); 2010 } 2011 2012 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() { 2013 if (!DtMipsPltGot) { 2014 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n"; 2015 return; 2016 } 2017 if (!DtJmpRel) { 2018 W.startLine() << "Cannot find JMPREL dynamic table tag.\n"; 2019 return; 2020 } 2021 2022 const Elf_Shdr *PLTShdr = findNotEmptySectionByAddress(Obj, *DtMipsPltGot); 2023 if (!PLTShdr) 2024 report_fatal_error("There is no not empty PLTGOT section at 0x " + 2025 Twine::utohexstr(*DtMipsPltGot)); 2026 ArrayRef<uint8_t> PLT = unwrapOrError(Obj->getSectionContents(PLTShdr)); 2027 2028 const Elf_Shdr *PLTRelShdr = findNotEmptySectionByAddress(Obj, *DtJmpRel); 2029 if (!PLTRelShdr) 2030 report_fatal_error("There is no not empty RELPLT section at 0x" + 2031 Twine::utohexstr(*DtJmpRel)); 2032 const Elf_Shdr *SymTable = 2033 unwrapOrError(Obj->getSection(PLTRelShdr->sh_link)); 2034 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTable)); 2035 2036 const GOTEntry *PLTBegin = makeGOTIter(PLT, 0); 2037 const GOTEntry *PLTEnd = makeGOTIter(PLT, getGOTTotal(PLT)); 2038 const GOTEntry *It = PLTBegin; 2039 2040 DictScope GS(W, "PLT GOT"); 2041 { 2042 ListScope RS(W, "Reserved entries"); 2043 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver"); 2044 if (It != PLTEnd) 2045 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer"); 2046 } 2047 { 2048 ListScope GS(W, "Entries"); 2049 2050 switch (PLTRelShdr->sh_type) { 2051 case ELF::SHT_REL: 2052 for (const Elf_Rel &Rel : unwrapOrError(Obj->rels(PLTRelShdr))) { 2053 const Elf_Sym *Sym = 2054 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable)); 2055 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); 2056 if (++It == PLTEnd) 2057 break; 2058 } 2059 break; 2060 case ELF::SHT_RELA: 2061 for (const Elf_Rela &Rel : unwrapOrError(Obj->relas(PLTRelShdr))) { 2062 const Elf_Sym *Sym = 2063 unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTable)); 2064 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, StrTable, Sym); 2065 if (++It == PLTEnd) 2066 break; 2067 } 2068 break; 2069 } 2070 } 2071 } 2072 2073 template <class ELFT> 2074 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const { 2075 return GOT.size() / sizeof(GOTEntry); 2076 } 2077 2078 template <class ELFT> 2079 const typename MipsGOTParser<ELFT>::GOTEntry * 2080 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) { 2081 const char *Data = reinterpret_cast<const char *>(GOT.data()); 2082 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry)); 2083 } 2084 2085 template <class ELFT> 2086 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr, 2087 const GOTEntry *BeginIt, 2088 const GOTEntry *It) { 2089 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2090 W.printHex("Address", GotAddr + Offset); 2091 W.printNumber("Access", Offset - 0x7ff0); 2092 W.printHex("Initial", *It); 2093 } 2094 2095 template <class ELFT> 2096 void MipsGOTParser<ELFT>::printGlobalGotEntry( 2097 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It, 2098 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) { 2099 printGotEntry(GotAddr, BeginIt, It); 2100 2101 W.printHex("Value", Sym->st_value); 2102 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 2103 2104 unsigned SectionIndex = 0; 2105 StringRef SectionName; 2106 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), 2107 Dumper->getShndxTable(), SectionName, SectionIndex); 2108 W.printHex("Section", SectionName, SectionIndex); 2109 2110 std::string FullSymbolName = 2111 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic); 2112 W.printNumber("Name", FullSymbolName, Sym->st_name); 2113 } 2114 2115 template <class ELFT> 2116 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, 2117 const GOTEntry *BeginIt, 2118 const GOTEntry *It, StringRef Purpose) { 2119 DictScope D(W, "Entry"); 2120 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2121 W.printHex("Address", PLTAddr + Offset); 2122 W.printHex("Initial", *It); 2123 W.printString("Purpose", Purpose); 2124 } 2125 2126 template <class ELFT> 2127 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr, 2128 const GOTEntry *BeginIt, 2129 const GOTEntry *It, StringRef StrTable, 2130 const Elf_Sym *Sym) { 2131 DictScope D(W, "Entry"); 2132 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry); 2133 W.printHex("Address", PLTAddr + Offset); 2134 W.printHex("Initial", *It); 2135 W.printHex("Value", Sym->st_value); 2136 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes)); 2137 2138 unsigned SectionIndex = 0; 2139 StringRef SectionName; 2140 getSectionNameIndex(*Obj, Sym, Dumper->dynamic_symbols().begin(), 2141 Dumper->getShndxTable(), SectionName, SectionIndex); 2142 W.printHex("Section", SectionName, SectionIndex); 2143 2144 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true); 2145 W.printNumber("Name", FullSymbolName, Sym->st_name); 2146 } 2147 2148 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() { 2149 if (Obj->getHeader()->e_machine != EM_MIPS) { 2150 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n"; 2151 return; 2152 } 2153 2154 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W); 2155 GOTParser.parseGOT(); 2156 GOTParser.parsePLT(); 2157 } 2158 2159 static const EnumEntry<unsigned> ElfMipsISAExtType[] = { 2160 {"None", Mips::AFL_EXT_NONE}, 2161 {"Broadcom SB-1", Mips::AFL_EXT_SB1}, 2162 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON}, 2163 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2}, 2164 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP}, 2165 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3}, 2166 {"LSI R4010", Mips::AFL_EXT_4010}, 2167 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E}, 2168 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F}, 2169 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A}, 2170 {"MIPS R4650", Mips::AFL_EXT_4650}, 2171 {"MIPS R5900", Mips::AFL_EXT_5900}, 2172 {"MIPS R10000", Mips::AFL_EXT_10000}, 2173 {"NEC VR4100", Mips::AFL_EXT_4100}, 2174 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111}, 2175 {"NEC VR4120", Mips::AFL_EXT_4120}, 2176 {"NEC VR5400", Mips::AFL_EXT_5400}, 2177 {"NEC VR5500", Mips::AFL_EXT_5500}, 2178 {"RMI Xlr", Mips::AFL_EXT_XLR}, 2179 {"Toshiba R3900", Mips::AFL_EXT_3900} 2180 }; 2181 2182 static const EnumEntry<unsigned> ElfMipsASEFlags[] = { 2183 {"DSP", Mips::AFL_ASE_DSP}, 2184 {"DSPR2", Mips::AFL_ASE_DSPR2}, 2185 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA}, 2186 {"MCU", Mips::AFL_ASE_MCU}, 2187 {"MDMX", Mips::AFL_ASE_MDMX}, 2188 {"MIPS-3D", Mips::AFL_ASE_MIPS3D}, 2189 {"MT", Mips::AFL_ASE_MT}, 2190 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS}, 2191 {"VZ", Mips::AFL_ASE_VIRT}, 2192 {"MSA", Mips::AFL_ASE_MSA}, 2193 {"MIPS16", Mips::AFL_ASE_MIPS16}, 2194 {"microMIPS", Mips::AFL_ASE_MICROMIPS}, 2195 {"XPA", Mips::AFL_ASE_XPA} 2196 }; 2197 2198 static const EnumEntry<unsigned> ElfMipsFpABIType[] = { 2199 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY}, 2200 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE}, 2201 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE}, 2202 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT}, 2203 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)", 2204 Mips::Val_GNU_MIPS_ABI_FP_OLD_64}, 2205 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX}, 2206 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64}, 2207 {"Hard float compat (32-bit CPU, 64-bit FPU)", 2208 Mips::Val_GNU_MIPS_ABI_FP_64A} 2209 }; 2210 2211 static const EnumEntry<unsigned> ElfMipsFlags1[] { 2212 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG}, 2213 }; 2214 2215 static int getMipsRegisterSize(uint8_t Flag) { 2216 switch (Flag) { 2217 case Mips::AFL_REG_NONE: 2218 return 0; 2219 case Mips::AFL_REG_32: 2220 return 32; 2221 case Mips::AFL_REG_64: 2222 return 64; 2223 case Mips::AFL_REG_128: 2224 return 128; 2225 default: 2226 return -1; 2227 } 2228 } 2229 2230 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() { 2231 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags"); 2232 if (!Shdr) { 2233 W.startLine() << "There is no .MIPS.abiflags section in the file.\n"; 2234 return; 2235 } 2236 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2237 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) { 2238 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n"; 2239 return; 2240 } 2241 2242 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data()); 2243 2244 raw_ostream &OS = W.getOStream(); 2245 DictScope GS(W, "MIPS ABI Flags"); 2246 2247 W.printNumber("Version", Flags->version); 2248 W.startLine() << "ISA: "; 2249 if (Flags->isa_rev <= 1) 2250 OS << format("MIPS%u", Flags->isa_level); 2251 else 2252 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev); 2253 OS << "\n"; 2254 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType)); 2255 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags)); 2256 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType)); 2257 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size)); 2258 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size)); 2259 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size)); 2260 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1)); 2261 W.printHex("Flags 2", Flags->flags2); 2262 } 2263 2264 template <class ELFT> 2265 static void printMipsReginfoData(ScopedPrinter &W, 2266 const Elf_Mips_RegInfo<ELFT> &Reginfo) { 2267 W.printHex("GP", Reginfo.ri_gp_value); 2268 W.printHex("General Mask", Reginfo.ri_gprmask); 2269 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]); 2270 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]); 2271 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]); 2272 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]); 2273 } 2274 2275 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() { 2276 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo"); 2277 if (!Shdr) { 2278 W.startLine() << "There is no .reginfo section in the file.\n"; 2279 return; 2280 } 2281 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2282 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) { 2283 W.startLine() << "The .reginfo section has a wrong size.\n"; 2284 return; 2285 } 2286 2287 DictScope GS(W, "MIPS RegInfo"); 2288 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data()); 2289 printMipsReginfoData(W, *Reginfo); 2290 } 2291 2292 template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() { 2293 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options"); 2294 if (!Shdr) { 2295 W.startLine() << "There is no .MIPS.options section in the file.\n"; 2296 return; 2297 } 2298 2299 DictScope GS(W, "MIPS Options"); 2300 2301 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2302 while (!Sec.empty()) { 2303 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) { 2304 W.startLine() << "The .MIPS.options section has a wrong size.\n"; 2305 return; 2306 } 2307 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data()); 2308 DictScope GS(W, getElfMipsOptionsOdkType(O->kind)); 2309 switch (O->kind) { 2310 case ODK_REGINFO: 2311 printMipsReginfoData(W, O->getRegInfo()); 2312 break; 2313 default: 2314 W.startLine() << "Unsupported MIPS options tag.\n"; 2315 break; 2316 } 2317 Sec = Sec.slice(O->size); 2318 } 2319 } 2320 2321 template <class ELFT> void ELFDumper<ELFT>::printAMDGPUCodeObjectMetadata() { 2322 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".note"); 2323 if (!Shdr) { 2324 W.startLine() << "There is no .note section in the file.\n"; 2325 return; 2326 } 2327 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr)); 2328 2329 const uint32_t CodeObjectMetadataNoteType = 10; 2330 for (auto I = reinterpret_cast<const Elf_Word *>(&Sec[0]), 2331 E = I + Sec.size()/4; I != E;) { 2332 uint32_t NameSZ = I[0]; 2333 uint32_t DescSZ = I[1]; 2334 uint32_t Type = I[2]; 2335 I += 3; 2336 2337 StringRef Name; 2338 if (NameSZ) { 2339 Name = StringRef(reinterpret_cast<const char *>(I), NameSZ - 1); 2340 I += alignTo<4>(NameSZ)/4; 2341 } 2342 2343 if (Name == "AMD" && Type == CodeObjectMetadataNoteType) { 2344 StringRef Desc(reinterpret_cast<const char *>(I), DescSZ); 2345 W.printString(Desc); 2346 } 2347 I += alignTo<4>(DescSZ)/4; 2348 } 2349 } 2350 2351 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const { 2352 const Elf_Shdr *StackMapSection = nullptr; 2353 for (const auto &Sec : unwrapOrError(Obj->sections())) { 2354 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2355 if (Name == ".llvm_stackmaps") { 2356 StackMapSection = &Sec; 2357 break; 2358 } 2359 } 2360 2361 if (!StackMapSection) 2362 return; 2363 2364 StringRef StackMapContents; 2365 ArrayRef<uint8_t> StackMapContentsArray = 2366 unwrapOrError(Obj->getSectionContents(StackMapSection)); 2367 2368 prettyPrintStackMap(outs(), StackMapV2Parser<ELFT::TargetEndianness>( 2369 StackMapContentsArray)); 2370 } 2371 2372 template <class ELFT> void ELFDumper<ELFT>::printGroupSections() { 2373 ELFDumperStyle->printGroupSections(Obj); 2374 } 2375 2376 static inline void printFields(formatted_raw_ostream &OS, StringRef Str1, 2377 StringRef Str2) { 2378 OS.PadToColumn(2u); 2379 OS << Str1; 2380 OS.PadToColumn(37u); 2381 OS << Str2 << "\n"; 2382 OS.flush(); 2383 } 2384 2385 template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 2386 const Elf_Ehdr *e = Obj->getHeader(); 2387 OS << "ELF Header:\n"; 2388 OS << " Magic: "; 2389 std::string Str; 2390 for (int i = 0; i < ELF::EI_NIDENT; i++) 2391 OS << format(" %02x", static_cast<int>(e->e_ident[i])); 2392 OS << "\n"; 2393 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 2394 printFields(OS, "Class:", Str); 2395 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding)); 2396 printFields(OS, "Data:", Str); 2397 OS.PadToColumn(2u); 2398 OS << "Version:"; 2399 OS.PadToColumn(37u); 2400 OS << to_hexString(e->e_ident[ELF::EI_VERSION]); 2401 if (e->e_version == ELF::EV_CURRENT) 2402 OS << " (current)"; 2403 OS << "\n"; 2404 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI)); 2405 printFields(OS, "OS/ABI:", Str); 2406 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]); 2407 printFields(OS, "ABI Version:", Str); 2408 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType)); 2409 printFields(OS, "Type:", Str); 2410 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType)); 2411 printFields(OS, "Machine:", Str); 2412 Str = "0x" + to_hexString(e->e_version); 2413 printFields(OS, "Version:", Str); 2414 Str = "0x" + to_hexString(e->e_entry); 2415 printFields(OS, "Entry point address:", Str); 2416 Str = to_string(e->e_phoff) + " (bytes into file)"; 2417 printFields(OS, "Start of program headers:", Str); 2418 Str = to_string(e->e_shoff) + " (bytes into file)"; 2419 printFields(OS, "Start of section headers:", Str); 2420 Str = "0x" + to_hexString(e->e_flags); 2421 printFields(OS, "Flags:", Str); 2422 Str = to_string(e->e_ehsize) + " (bytes)"; 2423 printFields(OS, "Size of this header:", Str); 2424 Str = to_string(e->e_phentsize) + " (bytes)"; 2425 printFields(OS, "Size of program headers:", Str); 2426 Str = to_string(e->e_phnum); 2427 printFields(OS, "Number of program headers:", Str); 2428 Str = to_string(e->e_shentsize) + " (bytes)"; 2429 printFields(OS, "Size of section headers:", Str); 2430 Str = to_string(e->e_shnum); 2431 printFields(OS, "Number of section headers:", Str); 2432 Str = to_string(e->e_shstrndx); 2433 printFields(OS, "Section header string table index:", Str); 2434 } 2435 2436 template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) { 2437 uint32_t SectionIndex = 0; 2438 bool HasGroups = false; 2439 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2440 if (Sec.sh_type == ELF::SHT_GROUP) { 2441 HasGroups = true; 2442 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2443 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 2444 const Elf_Sym *Signature = 2445 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 2446 ArrayRef<Elf_Word> Data = unwrapOrError( 2447 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 2448 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2449 OS << "\n" << getGroupType(Data[0]) << " group section [" 2450 << format_decimal(SectionIndex, 5) << "] `" << Name << "' [" 2451 << StrTable.data() + Signature->st_name << "] contains " 2452 << (Data.size() - 1) << " sections:\n" 2453 << " [Index] Name\n"; 2454 for (auto &Ndx : Data.slice(1)) { 2455 auto Sec = unwrapOrError(Obj->getSection(Ndx)); 2456 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 2457 OS << " [" << format_decimal(Ndx, 5) << "] " << Name 2458 << "\n"; 2459 } 2460 } 2461 ++SectionIndex; 2462 } 2463 if (!HasGroups) 2464 OS << "There are no section groups in this file.\n"; 2465 } 2466 2467 template <class ELFT> 2468 void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab, 2469 const Elf_Rela &R, bool IsRela) { 2470 std::string Offset, Info, Addend, Value; 2471 SmallString<32> RelocName; 2472 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 2473 StringRef TargetName; 2474 const Elf_Sym *Sym = nullptr; 2475 unsigned Width = ELFT::Is64Bits ? 16 : 8; 2476 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 2477 2478 // First two fields are bit width dependent. The rest of them are after are 2479 // fixed width. 2480 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 2481 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 2482 Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab)); 2483 if (Sym && Sym->getType() == ELF::STT_SECTION) { 2484 const Elf_Shdr *Sec = unwrapOrError( 2485 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 2486 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 2487 } else if (Sym) { 2488 TargetName = unwrapOrError(Sym->getName(StrTable)); 2489 } 2490 2491 if (Sym && IsRela) { 2492 if (R.r_addend < 0) 2493 Addend = " - "; 2494 else 2495 Addend = " + "; 2496 } 2497 2498 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 2499 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 2500 2501 int64_t RelAddend = R.r_addend; 2502 if (IsRela) 2503 Addend += to_hexString(std::abs(RelAddend), false); 2504 2505 if (Sym) 2506 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 2507 2508 Fields[0].Str = Offset; 2509 Fields[1].Str = Info; 2510 Fields[2].Str = RelocName; 2511 Fields[3].Str = Value; 2512 Fields[4].Str = TargetName; 2513 for (auto &field : Fields) 2514 printField(field); 2515 OS << Addend; 2516 OS << "\n"; 2517 } 2518 2519 static inline void printRelocHeader(raw_ostream &OS, bool Is64, bool IsRela) { 2520 if (Is64) 2521 OS << " Offset Info Type" 2522 << " Symbol's Value Symbol's Name"; 2523 else 2524 OS << " Offset Info Type Sym. Value " 2525 << "Symbol's Name"; 2526 if (IsRela) 2527 OS << (IsRela ? " + Addend" : ""); 2528 OS << "\n"; 2529 } 2530 2531 template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) { 2532 bool HasRelocSections = false; 2533 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2534 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) 2535 continue; 2536 HasRelocSections = true; 2537 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 2538 unsigned Entries = Sec.getEntityCount(); 2539 uintX_t Offset = Sec.sh_offset; 2540 OS << "\nRelocation section '" << Name << "' at offset 0x" 2541 << to_hexString(Offset, false) << " contains " << Entries 2542 << " entries:\n"; 2543 printRelocHeader(OS, ELFT::Is64Bits, (Sec.sh_type == ELF::SHT_RELA)); 2544 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link)); 2545 if (Sec.sh_type == ELF::SHT_REL) { 2546 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) { 2547 Elf_Rela Rela; 2548 Rela.r_offset = R.r_offset; 2549 Rela.r_info = R.r_info; 2550 Rela.r_addend = 0; 2551 printRelocation(Obj, SymTab, Rela, false); 2552 } 2553 } else { 2554 for (const auto &R : unwrapOrError(Obj->relas(&Sec))) 2555 printRelocation(Obj, SymTab, R, true); 2556 } 2557 } 2558 if (!HasRelocSections) 2559 OS << "\nThere are no relocations in this file.\n"; 2560 } 2561 2562 std::string getSectionTypeString(unsigned Arch, unsigned Type) { 2563 using namespace ELF; 2564 2565 switch (Arch) { 2566 case EM_ARM: 2567 switch (Type) { 2568 case SHT_ARM_EXIDX: 2569 return "ARM_EXIDX"; 2570 case SHT_ARM_PREEMPTMAP: 2571 return "ARM_PREEMPTMAP"; 2572 case SHT_ARM_ATTRIBUTES: 2573 return "ARM_ATTRIBUTES"; 2574 case SHT_ARM_DEBUGOVERLAY: 2575 return "ARM_DEBUGOVERLAY"; 2576 case SHT_ARM_OVERLAYSECTION: 2577 return "ARM_OVERLAYSECTION"; 2578 } 2579 case EM_X86_64: 2580 switch (Type) { 2581 case SHT_X86_64_UNWIND: 2582 return "X86_64_UNWIND"; 2583 } 2584 case EM_MIPS: 2585 case EM_MIPS_RS3_LE: 2586 switch (Type) { 2587 case SHT_MIPS_REGINFO: 2588 return "MIPS_REGINFO"; 2589 case SHT_MIPS_OPTIONS: 2590 return "MIPS_OPTIONS"; 2591 case SHT_MIPS_ABIFLAGS: 2592 return "MIPS_ABIFLAGS"; 2593 case SHT_MIPS_DWARF: 2594 return "SHT_MIPS_DWARF"; 2595 } 2596 } 2597 switch (Type) { 2598 case SHT_NULL: 2599 return "NULL"; 2600 case SHT_PROGBITS: 2601 return "PROGBITS"; 2602 case SHT_SYMTAB: 2603 return "SYMTAB"; 2604 case SHT_STRTAB: 2605 return "STRTAB"; 2606 case SHT_RELA: 2607 return "RELA"; 2608 case SHT_HASH: 2609 return "HASH"; 2610 case SHT_DYNAMIC: 2611 return "DYNAMIC"; 2612 case SHT_NOTE: 2613 return "NOTE"; 2614 case SHT_NOBITS: 2615 return "NOBITS"; 2616 case SHT_REL: 2617 return "REL"; 2618 case SHT_SHLIB: 2619 return "SHLIB"; 2620 case SHT_DYNSYM: 2621 return "DYNSYM"; 2622 case SHT_INIT_ARRAY: 2623 return "INIT_ARRAY"; 2624 case SHT_FINI_ARRAY: 2625 return "FINI_ARRAY"; 2626 case SHT_PREINIT_ARRAY: 2627 return "PREINIT_ARRAY"; 2628 case SHT_GROUP: 2629 return "GROUP"; 2630 case SHT_SYMTAB_SHNDX: 2631 return "SYMTAB SECTION INDICES"; 2632 case SHT_LLVM_ODRTAB: 2633 return "LLVM_ODRTAB"; 2634 // FIXME: Parse processor specific GNU attributes 2635 case SHT_GNU_ATTRIBUTES: 2636 return "ATTRIBUTES"; 2637 case SHT_GNU_HASH: 2638 return "GNU_HASH"; 2639 case SHT_GNU_verdef: 2640 return "VERDEF"; 2641 case SHT_GNU_verneed: 2642 return "VERNEED"; 2643 case SHT_GNU_versym: 2644 return "VERSYM"; 2645 default: 2646 return ""; 2647 } 2648 return ""; 2649 } 2650 2651 template <class ELFT> void GNUStyle<ELFT>::printSections(const ELFO *Obj) { 2652 size_t SectionIndex = 0; 2653 std::string Number, Type, Size, Address, Offset, Flags, Link, Info, EntrySize, 2654 Alignment; 2655 unsigned Bias; 2656 unsigned Width; 2657 2658 if (ELFT::Is64Bits) { 2659 Bias = 0; 2660 Width = 16; 2661 } else { 2662 Bias = 8; 2663 Width = 8; 2664 } 2665 OS << "There are " << to_string(Obj->getHeader()->e_shnum) 2666 << " section headers, starting at offset " 2667 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n"; 2668 OS << "Section Headers:\n"; 2669 Field Fields[11] = {{"[Nr]", 2}, 2670 {"Name", 7}, 2671 {"Type", 25}, 2672 {"Address", 41}, 2673 {"Off", 58 - Bias}, 2674 {"Size", 65 - Bias}, 2675 {"ES", 72 - Bias}, 2676 {"Flg", 75 - Bias}, 2677 {"Lk", 79 - Bias}, 2678 {"Inf", 82 - Bias}, 2679 {"Al", 86 - Bias}}; 2680 for (auto &f : Fields) 2681 printField(f); 2682 OS << "\n"; 2683 2684 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 2685 Number = to_string(SectionIndex); 2686 Fields[0].Str = Number; 2687 Fields[1].Str = unwrapOrError(Obj->getSectionName(&Sec)); 2688 Type = getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type); 2689 Fields[2].Str = Type; 2690 Address = to_string(format_hex_no_prefix(Sec.sh_addr, Width)); 2691 Fields[3].Str = Address; 2692 Offset = to_string(format_hex_no_prefix(Sec.sh_offset, 6)); 2693 Fields[4].Str = Offset; 2694 Size = to_string(format_hex_no_prefix(Sec.sh_size, 6)); 2695 Fields[5].Str = Size; 2696 EntrySize = to_string(format_hex_no_prefix(Sec.sh_entsize, 2)); 2697 Fields[6].Str = EntrySize; 2698 Flags = getGNUFlags(Sec.sh_flags); 2699 Fields[7].Str = Flags; 2700 Link = to_string(Sec.sh_link); 2701 Fields[8].Str = Link; 2702 Info = to_string(Sec.sh_info); 2703 Fields[9].Str = Info; 2704 Alignment = to_string(Sec.sh_addralign); 2705 Fields[10].Str = Alignment; 2706 OS.PadToColumn(Fields[0].Column); 2707 OS << "[" << right_justify(Fields[0].Str, 2) << "]"; 2708 for (int i = 1; i < 7; i++) 2709 printField(Fields[i]); 2710 OS.PadToColumn(Fields[7].Column); 2711 OS << right_justify(Fields[7].Str, 3); 2712 OS.PadToColumn(Fields[8].Column); 2713 OS << right_justify(Fields[8].Str, 2); 2714 OS.PadToColumn(Fields[9].Column); 2715 OS << right_justify(Fields[9].Str, 3); 2716 OS.PadToColumn(Fields[10].Column); 2717 OS << right_justify(Fields[10].Str, 2); 2718 OS << "\n"; 2719 ++SectionIndex; 2720 } 2721 OS << "Key to Flags:\n" 2722 << " W (write), A (alloc), X (execute), M (merge), S (strings), l " 2723 "(large)\n" 2724 << " I (info), L (link order), G (group), T (TLS), E (exclude),\ 2725 x (unknown)\n" 2726 << " O (extra OS processing required) o (OS specific),\ 2727 p (processor specific)\n"; 2728 } 2729 2730 template <class ELFT> 2731 void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name, 2732 size_t Entries) { 2733 if (!Name.empty()) 2734 OS << "\nSymbol table '" << Name << "' contains " << Entries 2735 << " entries:\n"; 2736 else 2737 OS << "\n Symbol table for image:\n"; 2738 2739 if (ELFT::Is64Bits) 2740 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2741 else 2742 OS << " Num: Value Size Type Bind Vis Ndx Name\n"; 2743 } 2744 2745 template <class ELFT> 2746 std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj, 2747 const Elf_Sym *Symbol, 2748 const Elf_Sym *FirstSym) { 2749 unsigned SectionIndex = Symbol->st_shndx; 2750 switch (SectionIndex) { 2751 case ELF::SHN_UNDEF: 2752 return "UND"; 2753 case ELF::SHN_ABS: 2754 return "ABS"; 2755 case ELF::SHN_COMMON: 2756 return "COM"; 2757 case ELF::SHN_XINDEX: 2758 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>( 2759 Symbol, FirstSym, this->dumper()->getShndxTable())); 2760 LLVM_FALLTHROUGH; 2761 default: 2762 // Find if: 2763 // Processor specific 2764 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC) 2765 return std::string("PRC[0x") + 2766 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2767 // OS specific 2768 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS) 2769 return std::string("OS[0x") + 2770 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2771 // Architecture reserved: 2772 if (SectionIndex >= ELF::SHN_LORESERVE && 2773 SectionIndex <= ELF::SHN_HIRESERVE) 2774 return std::string("RSV[0x") + 2775 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]"; 2776 // A normal section with an index 2777 return to_string(format_decimal(SectionIndex, 3)); 2778 } 2779 } 2780 2781 template <class ELFT> 2782 void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 2783 const Elf_Sym *FirstSym, StringRef StrTable, 2784 bool IsDynamic) { 2785 static int Idx = 0; 2786 static bool Dynamic = true; 2787 size_t Width; 2788 2789 // If this function was called with a different value from IsDynamic 2790 // from last call, happens when we move from dynamic to static symbol 2791 // table, "Num" field should be reset. 2792 if (!Dynamic != !IsDynamic) { 2793 Idx = 0; 2794 Dynamic = false; 2795 } 2796 std::string Num, Name, Value, Size, Binding, Type, Visibility, Section; 2797 unsigned Bias = 0; 2798 if (ELFT::Is64Bits) { 2799 Bias = 8; 2800 Width = 16; 2801 } else { 2802 Bias = 0; 2803 Width = 8; 2804 } 2805 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias, 2806 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias}; 2807 Num = to_string(format_decimal(Idx++, 6)) + ":"; 2808 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 2809 Size = to_string(format_decimal(Symbol->st_size, 5)); 2810 unsigned char SymbolType = Symbol->getType(); 2811 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 2812 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 2813 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 2814 else 2815 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 2816 unsigned Vis = Symbol->getVisibility(); 2817 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 2818 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 2819 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 2820 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 2821 Fields[0].Str = Num; 2822 Fields[1].Str = Value; 2823 Fields[2].Str = Size; 2824 Fields[3].Str = Type; 2825 Fields[4].Str = Binding; 2826 Fields[5].Str = Visibility; 2827 Fields[6].Str = Section; 2828 Fields[7].Str = Name; 2829 for (auto &Entry : Fields) 2830 printField(Entry); 2831 OS << "\n"; 2832 } 2833 template <class ELFT> 2834 void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, 2835 uint32_t Sym, StringRef StrTable, 2836 uint32_t Bucket) { 2837 std::string Num, Buc, Name, Value, Size, Binding, Type, Visibility, Section; 2838 unsigned Width, Bias = 0; 2839 if (ELFT::Is64Bits) { 2840 Bias = 8; 2841 Width = 16; 2842 } else { 2843 Bias = 0; 2844 Width = 8; 2845 } 2846 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias, 2847 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias}; 2848 Num = to_string(format_decimal(Sym, 5)); 2849 Buc = to_string(format_decimal(Bucket, 3)) + ":"; 2850 2851 const auto Symbol = FirstSym + Sym; 2852 Value = to_string(format_hex_no_prefix(Symbol->st_value, Width)); 2853 Size = to_string(format_decimal(Symbol->st_size, 5)); 2854 unsigned char SymbolType = Symbol->getType(); 2855 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 2856 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 2857 Type = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 2858 else 2859 Type = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes)); 2860 unsigned Vis = Symbol->getVisibility(); 2861 Binding = printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 2862 Visibility = printEnum(Vis, makeArrayRef(ElfSymbolVisibilities)); 2863 Section = getSymbolSectionNdx(Obj, Symbol, FirstSym); 2864 Name = this->dumper()->getFullSymbolName(Symbol, StrTable, true); 2865 Fields[0].Str = Num; 2866 Fields[1].Str = Buc; 2867 Fields[2].Str = Value; 2868 Fields[3].Str = Size; 2869 Fields[4].Str = Type; 2870 Fields[5].Str = Binding; 2871 Fields[6].Str = Visibility; 2872 Fields[7].Str = Section; 2873 Fields[8].Str = Name; 2874 for (auto &Entry : Fields) 2875 printField(Entry); 2876 OS << "\n"; 2877 } 2878 2879 template <class ELFT> void GNUStyle<ELFT>::printSymbols(const ELFO *Obj) { 2880 if (opts::DynamicSymbols) 2881 return; 2882 this->dumper()->printSymbolsHelper(true); 2883 this->dumper()->printSymbolsHelper(false); 2884 } 2885 2886 template <class ELFT> 2887 void GNUStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 2888 if (this->dumper()->getDynamicStringTable().empty()) 2889 return; 2890 auto StringTable = this->dumper()->getDynamicStringTable(); 2891 auto DynSyms = this->dumper()->dynamic_symbols(); 2892 auto GnuHash = this->dumper()->getGnuHashTable(); 2893 auto SysVHash = this->dumper()->getHashTable(); 2894 2895 // If no hash or .gnu.hash found, try using symbol table 2896 if (GnuHash == nullptr && SysVHash == nullptr) 2897 this->dumper()->printSymbolsHelper(true); 2898 2899 // Try printing .hash 2900 if (this->dumper()->getHashTable()) { 2901 OS << "\n Symbol table of .hash for image:\n"; 2902 if (ELFT::Is64Bits) 2903 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2904 else 2905 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2906 OS << "\n"; 2907 2908 uint32_t NBuckets = SysVHash->nbucket; 2909 uint32_t NChains = SysVHash->nchain; 2910 auto Buckets = SysVHash->buckets(); 2911 auto Chains = SysVHash->chains(); 2912 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 2913 if (Buckets[Buc] == ELF::STN_UNDEF) 2914 continue; 2915 for (uint32_t Ch = Buckets[Buc]; Ch < NChains; Ch = Chains[Ch]) { 2916 if (Ch == ELF::STN_UNDEF) 2917 break; 2918 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc); 2919 } 2920 } 2921 } 2922 2923 // Try printing .gnu.hash 2924 if (GnuHash) { 2925 OS << "\n Symbol table of .gnu.hash for image:\n"; 2926 if (ELFT::Is64Bits) 2927 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2928 else 2929 OS << " Num Buc: Value Size Type Bind Vis Ndx Name"; 2930 OS << "\n"; 2931 uint32_t NBuckets = GnuHash->nbuckets; 2932 auto Buckets = GnuHash->buckets(); 2933 for (uint32_t Buc = 0; Buc < NBuckets; Buc++) { 2934 if (Buckets[Buc] == ELF::STN_UNDEF) 2935 continue; 2936 uint32_t Index = Buckets[Buc]; 2937 uint32_t GnuHashable = Index - GnuHash->symndx; 2938 // Print whole chain 2939 while (true) { 2940 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc); 2941 // Chain ends at symbol with stopper bit 2942 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1) 2943 break; 2944 } 2945 } 2946 } 2947 } 2948 2949 static inline std::string printPhdrFlags(unsigned Flag) { 2950 std::string Str; 2951 Str = (Flag & PF_R) ? "R" : " "; 2952 Str += (Flag & PF_W) ? "W" : " "; 2953 Str += (Flag & PF_X) ? "E" : " "; 2954 return Str; 2955 } 2956 2957 // SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO 2958 // PT_TLS must only have SHF_TLS sections 2959 template <class ELFT> 2960 bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr, 2961 const Elf_Shdr &Sec) { 2962 return (((Sec.sh_flags & ELF::SHF_TLS) && 2963 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) || 2964 (Phdr.p_type == ELF::PT_GNU_RELRO))) || 2965 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS)); 2966 } 2967 2968 // Non-SHT_NOBITS must have its offset inside the segment 2969 // Only non-zero section can be at end of segment 2970 template <class ELFT> 2971 bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 2972 if (Sec.sh_type == ELF::SHT_NOBITS) 2973 return true; 2974 bool IsSpecial = 2975 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 2976 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 2977 auto SectionSize = 2978 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 2979 if (Sec.sh_offset >= Phdr.p_offset) 2980 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset) 2981 /*only non-zero sized sections at end*/ && 2982 (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz)); 2983 return false; 2984 } 2985 2986 // SHF_ALLOC must have VMA inside segment 2987 // Only non-zero section can be at end of segment 2988 template <class ELFT> 2989 bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 2990 if (!(Sec.sh_flags & ELF::SHF_ALLOC)) 2991 return true; 2992 bool IsSpecial = 2993 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0); 2994 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties 2995 auto SectionSize = 2996 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size; 2997 if (Sec.sh_addr >= Phdr.p_vaddr) 2998 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) && 2999 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz)); 3000 return false; 3001 } 3002 3003 // No section with zero size must be at start or end of PT_DYNAMIC 3004 template <class ELFT> 3005 bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) { 3006 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0) 3007 return true; 3008 // Is section within the phdr both based on offset and VMA ? 3009 return ((Sec.sh_type == ELF::SHT_NOBITS) || 3010 (Sec.sh_offset > Phdr.p_offset && 3011 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) && 3012 (!(Sec.sh_flags & ELF::SHF_ALLOC) || 3013 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz)); 3014 } 3015 3016 template <class ELFT> 3017 void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3018 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3019 unsigned Width = ELFT::Is64Bits ? 18 : 10; 3020 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7; 3021 std::string Type, Offset, VMA, LMA, FileSz, MemSz, Flag, Align; 3022 3023 const Elf_Ehdr *Header = Obj->getHeader(); 3024 Field Fields[8] = {2, 17, 26, 37 + Bias, 3025 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias}; 3026 OS << "\nElf file type is " 3027 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n" 3028 << "Entry point " << format_hex(Header->e_entry, 3) << "\n" 3029 << "There are " << Header->e_phnum << " program headers," 3030 << " starting at offset " << Header->e_phoff << "\n\n" 3031 << "Program Headers:\n"; 3032 if (ELFT::Is64Bits) 3033 OS << " Type Offset VirtAddr PhysAddr " 3034 << " FileSiz MemSiz Flg Align\n"; 3035 else 3036 OS << " Type Offset VirtAddr PhysAddr FileSiz " 3037 << "MemSiz Flg Align\n"; 3038 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) { 3039 Type = getElfPtType(Header->e_machine, Phdr.p_type); 3040 Offset = to_string(format_hex(Phdr.p_offset, 8)); 3041 VMA = to_string(format_hex(Phdr.p_vaddr, Width)); 3042 LMA = to_string(format_hex(Phdr.p_paddr, Width)); 3043 FileSz = to_string(format_hex(Phdr.p_filesz, SizeWidth)); 3044 MemSz = to_string(format_hex(Phdr.p_memsz, SizeWidth)); 3045 Flag = printPhdrFlags(Phdr.p_flags); 3046 Align = to_string(format_hex(Phdr.p_align, 1)); 3047 Fields[0].Str = Type; 3048 Fields[1].Str = Offset; 3049 Fields[2].Str = VMA; 3050 Fields[3].Str = LMA; 3051 Fields[4].Str = FileSz; 3052 Fields[5].Str = MemSz; 3053 Fields[6].Str = Flag; 3054 Fields[7].Str = Align; 3055 for (auto Field : Fields) 3056 printField(Field); 3057 if (Phdr.p_type == ELF::PT_INTERP) { 3058 OS << "\n [Requesting program interpreter: "; 3059 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]"; 3060 } 3061 OS << "\n"; 3062 } 3063 OS << "\n Section to Segment mapping:\n Segment Sections...\n"; 3064 int Phnum = 0; 3065 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3066 std::string Sections; 3067 OS << format(" %2.2d ", Phnum++); 3068 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3069 // Check if each section is in a segment and then print mapping. 3070 // readelf additionally makes sure it does not print zero sized sections 3071 // at end of segments and for PT_DYNAMIC both start and end of section 3072 // .tbss must only be shown in PT_TLS section. 3073 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) && 3074 ((Sec.sh_flags & ELF::SHF_TLS) != 0) && 3075 Phdr.p_type != ELF::PT_TLS; 3076 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) && 3077 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) && 3078 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) 3079 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " "; 3080 } 3081 OS << Sections << "\n"; 3082 OS.flush(); 3083 } 3084 } 3085 3086 template <class ELFT> 3087 void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R, 3088 bool IsRela) { 3089 SmallString<32> RelocName; 3090 StringRef SymbolName; 3091 unsigned Width = ELFT::Is64Bits ? 16 : 8; 3092 unsigned Bias = ELFT::Is64Bits ? 8 : 0; 3093 // First two fields are bit width dependent. The rest of them are after are 3094 // fixed width. 3095 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias}; 3096 3097 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL()); 3098 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3099 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName); 3100 SymbolName = 3101 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3102 std::string Addend, Info, Offset, Value; 3103 Offset = to_string(format_hex_no_prefix(R.r_offset, Width)); 3104 Info = to_string(format_hex_no_prefix(R.r_info, Width)); 3105 Value = to_string(format_hex_no_prefix(Sym->getValue(), Width)); 3106 int64_t RelAddend = R.r_addend; 3107 if (!SymbolName.empty() && IsRela) { 3108 if (R.r_addend < 0) 3109 Addend = " - "; 3110 else 3111 Addend = " + "; 3112 } 3113 3114 if (SymbolName.empty() && Sym->getValue() == 0) 3115 Value = ""; 3116 3117 if (IsRela) 3118 Addend += to_string(format_hex_no_prefix(std::abs(RelAddend), 1)); 3119 3120 3121 Fields[0].Str = Offset; 3122 Fields[1].Str = Info; 3123 Fields[2].Str = RelocName.c_str(); 3124 Fields[3].Str = Value; 3125 Fields[4].Str = SymbolName; 3126 for (auto &Field : Fields) 3127 printField(Field); 3128 OS << Addend; 3129 OS << "\n"; 3130 } 3131 3132 template <class ELFT> 3133 void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3134 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3135 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3136 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3137 if (DynRelaRegion.Size > 0) { 3138 OS << "\n'RELA' relocation section at offset " 3139 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) - 3140 Obj->base(), 3141 1) << " contains " << DynRelaRegion.Size << " bytes:\n"; 3142 printRelocHeader(OS, ELFT::Is64Bits, true); 3143 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3144 printDynamicRelocation(Obj, Rela, true); 3145 } 3146 if (DynRelRegion.Size > 0) { 3147 OS << "\n'REL' relocation section at offset " 3148 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) - 3149 Obj->base(), 3150 1) << " contains " << DynRelRegion.Size << " bytes:\n"; 3151 printRelocHeader(OS, ELFT::Is64Bits, false); 3152 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3153 Elf_Rela Rela; 3154 Rela.r_offset = Rel.r_offset; 3155 Rela.r_info = Rel.r_info; 3156 Rela.r_addend = 0; 3157 printDynamicRelocation(Obj, Rela, false); 3158 } 3159 } 3160 if (DynPLTRelRegion.Size) { 3161 OS << "\n'PLT' relocation section at offset " 3162 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) - 3163 Obj->base(), 3164 1) << " contains " << DynPLTRelRegion.Size << " bytes:\n"; 3165 } 3166 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) { 3167 printRelocHeader(OS, ELFT::Is64Bits, true); 3168 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3169 printDynamicRelocation(Obj, Rela, true); 3170 } else { 3171 printRelocHeader(OS, ELFT::Is64Bits, false); 3172 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3173 Elf_Rela Rela; 3174 Rela.r_offset = Rel.r_offset; 3175 Rela.r_info = Rel.r_info; 3176 Rela.r_addend = 0; 3177 printDynamicRelocation(Obj, Rela, false); 3178 } 3179 } 3180 } 3181 3182 // Hash histogram shows statistics of how efficient the hash was for the 3183 // dynamic symbol table. The table shows number of hash buckets for different 3184 // lengths of chains as absolute number and percentage of the total buckets. 3185 // Additionally cumulative coverage of symbols for each set of buckets. 3186 template <class ELFT> 3187 void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3188 3189 const Elf_Hash *HashTable = this->dumper()->getHashTable(); 3190 const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable(); 3191 3192 // Print histogram for .hash section 3193 if (HashTable) { 3194 size_t NBucket = HashTable->nbucket; 3195 size_t NChain = HashTable->nchain; 3196 ArrayRef<Elf_Word> Buckets = HashTable->buckets(); 3197 ArrayRef<Elf_Word> Chains = HashTable->chains(); 3198 size_t TotalSyms = 0; 3199 // If hash table is correct, we have at least chains with 0 length 3200 size_t MaxChain = 1; 3201 size_t CumulativeNonZero = 0; 3202 3203 if (NChain == 0 || NBucket == 0) 3204 return; 3205 3206 std::vector<size_t> ChainLen(NBucket, 0); 3207 // Go over all buckets and and note chain lengths of each bucket (total 3208 // unique chain lengths). 3209 for (size_t B = 0; B < NBucket; B++) { 3210 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C]) 3211 if (MaxChain <= ++ChainLen[B]) 3212 MaxChain++; 3213 TotalSyms += ChainLen[B]; 3214 } 3215 3216 if (!TotalSyms) 3217 return; 3218 3219 std::vector<size_t> Count(MaxChain, 0) ; 3220 // Count how long is the chain for each bucket 3221 for (size_t B = 0; B < NBucket; B++) 3222 ++Count[ChainLen[B]]; 3223 // Print Number of buckets with each chain lengths and their cumulative 3224 // coverage of the symbols 3225 OS << "Histogram for bucket list length (total of " << NBucket 3226 << " buckets)\n" 3227 << " Length Number % of total Coverage\n"; 3228 for (size_t I = 0; I < MaxChain; I++) { 3229 CumulativeNonZero += Count[I] * I; 3230 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3231 (Count[I] * 100.0) / NBucket, 3232 (CumulativeNonZero * 100.0) / TotalSyms); 3233 } 3234 } 3235 3236 // Print histogram for .gnu.hash section 3237 if (GnuHashTable) { 3238 size_t NBucket = GnuHashTable->nbuckets; 3239 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets(); 3240 unsigned NumSyms = this->dumper()->dynamic_symbols().size(); 3241 if (!NumSyms) 3242 return; 3243 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms); 3244 size_t Symndx = GnuHashTable->symndx; 3245 size_t TotalSyms = 0; 3246 size_t MaxChain = 1; 3247 size_t CumulativeNonZero = 0; 3248 3249 if (Chains.empty() || NBucket == 0) 3250 return; 3251 3252 std::vector<size_t> ChainLen(NBucket, 0); 3253 3254 for (size_t B = 0; B < NBucket; B++) { 3255 if (!Buckets[B]) 3256 continue; 3257 size_t Len = 1; 3258 for (size_t C = Buckets[B] - Symndx; 3259 C < Chains.size() && (Chains[C] & 1) == 0; C++) 3260 if (MaxChain < ++Len) 3261 MaxChain++; 3262 ChainLen[B] = Len; 3263 TotalSyms += Len; 3264 } 3265 MaxChain++; 3266 3267 if (!TotalSyms) 3268 return; 3269 3270 std::vector<size_t> Count(MaxChain, 0) ; 3271 for (size_t B = 0; B < NBucket; B++) 3272 ++Count[ChainLen[B]]; 3273 // Print Number of buckets with each chain lengths and their cumulative 3274 // coverage of the symbols 3275 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket 3276 << " buckets)\n" 3277 << " Length Number % of total Coverage\n"; 3278 for (size_t I = 0; I <MaxChain; I++) { 3279 CumulativeNonZero += Count[I] * I; 3280 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I], 3281 (Count[I] * 100.0) / NBucket, 3282 (CumulativeNonZero * 100.0) / TotalSyms); 3283 } 3284 } 3285 } 3286 3287 static std::string getGNUNoteTypeName(const uint32_t NT) { 3288 static const struct { 3289 uint32_t ID; 3290 const char *Name; 3291 } Notes[] = { 3292 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"}, 3293 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"}, 3294 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"}, 3295 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"}, 3296 }; 3297 3298 for (const auto &Note : Notes) 3299 if (Note.ID == NT) 3300 return std::string(Note.Name); 3301 3302 std::string string; 3303 raw_string_ostream OS(string); 3304 OS << format("Unknown note type (0x%08x)", NT); 3305 return string; 3306 } 3307 3308 static std::string getFreeBSDNoteTypeName(const uint32_t NT) { 3309 static const struct { 3310 uint32_t ID; 3311 const char *Name; 3312 } Notes[] = { 3313 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"}, 3314 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"}, 3315 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"}, 3316 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"}, 3317 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"}, 3318 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"}, 3319 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"}, 3320 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"}, 3321 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS, 3322 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"}, 3323 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"}, 3324 }; 3325 3326 for (const auto &Note : Notes) 3327 if (Note.ID == NT) 3328 return std::string(Note.Name); 3329 3330 std::string string; 3331 raw_string_ostream OS(string); 3332 OS << format("Unknown note type (0x%08x)", NT); 3333 return string; 3334 } 3335 3336 template <typename ELFT> 3337 static void printGNUNote(raw_ostream &OS, uint32_t NoteType, 3338 ArrayRef<typename ELFFile<ELFT>::Elf_Word> Words, 3339 size_t Size) { 3340 switch (NoteType) { 3341 default: 3342 return; 3343 case ELF::NT_GNU_ABI_TAG: { 3344 static const char *OSNames[] = { 3345 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl", 3346 }; 3347 3348 StringRef OSName = "Unknown"; 3349 if (Words[0] < array_lengthof(OSNames)) 3350 OSName = OSNames[Words[0]]; 3351 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3]; 3352 3353 if (Words.size() < 4) 3354 OS << " <corrupt GNU_ABI_TAG>"; 3355 else 3356 OS << " OS: " << OSName << ", ABI: " << Major << "." << Minor << "." 3357 << Patch; 3358 break; 3359 } 3360 case ELF::NT_GNU_BUILD_ID: { 3361 OS << " Build ID: "; 3362 ArrayRef<uint8_t> ID(reinterpret_cast<const uint8_t *>(Words.data()), Size); 3363 for (const auto &B : ID) 3364 OS << format_hex_no_prefix(B, 2); 3365 break; 3366 } 3367 case ELF::NT_GNU_GOLD_VERSION: 3368 OS << " Version: " 3369 << StringRef(reinterpret_cast<const char *>(Words.data()), Size); 3370 break; 3371 } 3372 3373 OS << '\n'; 3374 } 3375 3376 template <class ELFT> 3377 void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3378 const Elf_Ehdr *e = Obj->getHeader(); 3379 bool IsCore = e->e_type == ELF::ET_CORE; 3380 3381 auto process = [&](const typename ELFFile<ELFT>::Elf_Off Offset, 3382 const typename ELFFile<ELFT>::Elf_Addr Size) { 3383 if (Size <= 0) 3384 return; 3385 3386 const auto *P = static_cast<const uint8_t *>(Obj->base() + Offset); 3387 const auto *E = P + Size; 3388 3389 OS << "Displaying notes found at file offset " << format_hex(Offset, 10) 3390 << " with length " << format_hex(Size, 10) << ":\n" 3391 << " Owner Data size\tDescription\n"; 3392 3393 while (P < E) { 3394 const Elf_Word *Words = reinterpret_cast<const Elf_Word *>(&P[0]); 3395 3396 uint32_t NameSize = Words[0]; 3397 uint32_t DescriptorSize = Words[1]; 3398 uint32_t Type = Words[2]; 3399 3400 ArrayRef<Elf_Word> Descriptor(&Words[3 + (alignTo<4>(NameSize) / 4)], 3401 alignTo<4>(DescriptorSize) / 4); 3402 3403 StringRef Name; 3404 if (NameSize) 3405 Name = 3406 StringRef(reinterpret_cast<const char *>(&Words[3]), NameSize - 1); 3407 3408 OS << " " << Name << std::string(22 - NameSize, ' ') 3409 << format_hex(DescriptorSize, 10) << '\t'; 3410 3411 if (Name == "GNU") { 3412 OS << getGNUNoteTypeName(Type) << '\n'; 3413 printGNUNote<ELFT>(OS, Type, Descriptor, DescriptorSize); 3414 } else if (Name == "FreeBSD") { 3415 OS << getFreeBSDNoteTypeName(Type) << '\n'; 3416 } else { 3417 OS << "Unknown note type: (" << format_hex(Type, 10) << ')'; 3418 } 3419 OS << '\n'; 3420 3421 P = P + 3 * sizeof(Elf_Word) + alignTo<4>(NameSize) + 3422 alignTo<4>(DescriptorSize); 3423 } 3424 }; 3425 3426 if (IsCore) { 3427 for (const auto &P : unwrapOrError(Obj->program_headers())) 3428 if (P.p_type == PT_NOTE) 3429 process(P.p_offset, P.p_filesz); 3430 } else { 3431 for (const auto &S : unwrapOrError(Obj->sections())) 3432 if (S.sh_type == SHT_NOTE) 3433 process(S.sh_offset, S.sh_size); 3434 } 3435 } 3436 3437 template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) { 3438 const Elf_Ehdr *e = Obj->getHeader(); 3439 { 3440 DictScope D(W, "ElfHeader"); 3441 { 3442 DictScope D(W, "Ident"); 3443 W.printBinary("Magic", makeArrayRef(e->e_ident).slice(ELF::EI_MAG0, 4)); 3444 W.printEnum("Class", e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass)); 3445 W.printEnum("DataEncoding", e->e_ident[ELF::EI_DATA], 3446 makeArrayRef(ElfDataEncoding)); 3447 W.printNumber("FileVersion", e->e_ident[ELF::EI_VERSION]); 3448 3449 // Handle architecture specific OS/ABI values. 3450 if (e->e_machine == ELF::EM_AMDGPU && 3451 e->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA) 3452 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA); 3453 else 3454 W.printEnum("OS/ABI", e->e_ident[ELF::EI_OSABI], 3455 makeArrayRef(ElfOSABI)); 3456 W.printNumber("ABIVersion", e->e_ident[ELF::EI_ABIVERSION]); 3457 W.printBinary("Unused", makeArrayRef(e->e_ident).slice(ELF::EI_PAD)); 3458 } 3459 3460 W.printEnum("Type", e->e_type, makeArrayRef(ElfObjectFileType)); 3461 W.printEnum("Machine", e->e_machine, makeArrayRef(ElfMachineType)); 3462 W.printNumber("Version", e->e_version); 3463 W.printHex("Entry", e->e_entry); 3464 W.printHex("ProgramHeaderOffset", e->e_phoff); 3465 W.printHex("SectionHeaderOffset", e->e_shoff); 3466 if (e->e_machine == EM_MIPS) 3467 W.printFlags("Flags", e->e_flags, makeArrayRef(ElfHeaderMipsFlags), 3468 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI), 3469 unsigned(ELF::EF_MIPS_MACH)); 3470 else 3471 W.printFlags("Flags", e->e_flags); 3472 W.printNumber("HeaderSize", e->e_ehsize); 3473 W.printNumber("ProgramHeaderEntrySize", e->e_phentsize); 3474 W.printNumber("ProgramHeaderCount", e->e_phnum); 3475 W.printNumber("SectionHeaderEntrySize", e->e_shentsize); 3476 W.printNumber("SectionHeaderCount", e->e_shnum); 3477 W.printNumber("StringTableSectionIndex", e->e_shstrndx); 3478 } 3479 } 3480 3481 template <class ELFT> 3482 void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) { 3483 DictScope Lists(W, "Groups"); 3484 uint32_t SectionIndex = 0; 3485 bool HasGroups = false; 3486 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3487 if (Sec.sh_type == ELF::SHT_GROUP) { 3488 HasGroups = true; 3489 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link)); 3490 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 3491 const Elf_Sym *Sym = 3492 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info)); 3493 auto Data = unwrapOrError( 3494 Obj->template getSectionContentsAsArray<Elf_Word>(&Sec)); 3495 DictScope D(W, "Group"); 3496 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3497 W.printNumber("Name", Name, Sec.sh_name); 3498 W.printNumber("Index", SectionIndex); 3499 W.printHex("Type", getGroupType(Data[0]), Data[0]); 3500 W.startLine() << "Signature: " << StrTable.data() + Sym->st_name << "\n"; 3501 { 3502 ListScope L(W, "Section(s) in group"); 3503 size_t Member = 1; 3504 while (Member < Data.size()) { 3505 auto Sec = unwrapOrError(Obj->getSection(Data[Member])); 3506 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec)); 3507 W.startLine() << Name << " (" << Data[Member++] << ")\n"; 3508 } 3509 } 3510 } 3511 ++SectionIndex; 3512 } 3513 if (!HasGroups) 3514 W.startLine() << "There are no group sections in the file.\n"; 3515 } 3516 3517 template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) { 3518 ListScope D(W, "Relocations"); 3519 3520 int SectionNumber = -1; 3521 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3522 ++SectionNumber; 3523 3524 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA) 3525 continue; 3526 3527 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3528 3529 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 3530 W.indent(); 3531 3532 printRelocations(&Sec, Obj); 3533 3534 W.unindent(); 3535 W.startLine() << "}\n"; 3536 } 3537 } 3538 3539 template <class ELFT> 3540 void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) { 3541 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link)); 3542 3543 switch (Sec->sh_type) { 3544 case ELF::SHT_REL: 3545 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) { 3546 Elf_Rela Rela; 3547 Rela.r_offset = R.r_offset; 3548 Rela.r_info = R.r_info; 3549 Rela.r_addend = 0; 3550 printRelocation(Obj, Rela, SymTab); 3551 } 3552 break; 3553 case ELF::SHT_RELA: 3554 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec))) 3555 printRelocation(Obj, R, SymTab); 3556 break; 3557 } 3558 } 3559 3560 template <class ELFT> 3561 void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel, 3562 const Elf_Shdr *SymTab) { 3563 SmallString<32> RelocName; 3564 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 3565 StringRef TargetName; 3566 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab)); 3567 if (Sym && Sym->getType() == ELF::STT_SECTION) { 3568 const Elf_Shdr *Sec = unwrapOrError( 3569 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable())); 3570 TargetName = unwrapOrError(Obj->getSectionName(Sec)); 3571 } else if (Sym) { 3572 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab)); 3573 TargetName = unwrapOrError(Sym->getName(StrTable)); 3574 } 3575 3576 if (opts::ExpandRelocs) { 3577 DictScope Group(W, "Relocation"); 3578 W.printHex("Offset", Rel.r_offset); 3579 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 3580 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-", 3581 Rel.getSymbol(Obj->isMips64EL())); 3582 W.printHex("Addend", Rel.r_addend); 3583 } else { 3584 raw_ostream &OS = W.startLine(); 3585 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 3586 << (!TargetName.empty() ? TargetName : "-") << " " 3587 << W.hex(Rel.r_addend) << "\n"; 3588 } 3589 } 3590 3591 template <class ELFT> void LLVMStyle<ELFT>::printSections(const ELFO *Obj) { 3592 ListScope SectionsD(W, "Sections"); 3593 3594 int SectionIndex = -1; 3595 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) { 3596 ++SectionIndex; 3597 3598 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec)); 3599 3600 DictScope SectionD(W, "Section"); 3601 W.printNumber("Index", SectionIndex); 3602 W.printNumber("Name", Name, Sec.sh_name); 3603 W.printHex( 3604 "Type", 3605 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type), 3606 Sec.sh_type); 3607 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags), 3608 std::end(ElfSectionFlags)); 3609 switch (Obj->getHeader()->e_machine) { 3610 case EM_ARM: 3611 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags), 3612 std::end(ElfARMSectionFlags)); 3613 break; 3614 case EM_HEXAGON: 3615 SectionFlags.insert(SectionFlags.end(), 3616 std::begin(ElfHexagonSectionFlags), 3617 std::end(ElfHexagonSectionFlags)); 3618 break; 3619 case EM_MIPS: 3620 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags), 3621 std::end(ElfMipsSectionFlags)); 3622 break; 3623 case EM_X86_64: 3624 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags), 3625 std::end(ElfX86_64SectionFlags)); 3626 break; 3627 case EM_XCORE: 3628 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags), 3629 std::end(ElfXCoreSectionFlags)); 3630 break; 3631 default: 3632 // Nothing to do. 3633 break; 3634 } 3635 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags)); 3636 W.printHex("Address", Sec.sh_addr); 3637 W.printHex("Offset", Sec.sh_offset); 3638 W.printNumber("Size", Sec.sh_size); 3639 W.printNumber("Link", Sec.sh_link); 3640 W.printNumber("Info", Sec.sh_info); 3641 W.printNumber("AddressAlignment", Sec.sh_addralign); 3642 W.printNumber("EntrySize", Sec.sh_entsize); 3643 3644 if (opts::SectionRelocations) { 3645 ListScope D(W, "Relocations"); 3646 printRelocations(&Sec, Obj); 3647 } 3648 3649 if (opts::SectionSymbols) { 3650 ListScope D(W, "Symbols"); 3651 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec(); 3652 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab)); 3653 3654 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) { 3655 const Elf_Shdr *SymSec = unwrapOrError( 3656 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable())); 3657 if (SymSec == &Sec) 3658 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(), 3659 StrTable, false); 3660 } 3661 } 3662 3663 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) { 3664 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec)); 3665 W.printBinaryBlock("SectionData", 3666 StringRef((const char *)Data.data(), Data.size())); 3667 } 3668 } 3669 } 3670 3671 template <class ELFT> 3672 void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, 3673 const Elf_Sym *First, StringRef StrTable, 3674 bool IsDynamic) { 3675 unsigned SectionIndex = 0; 3676 StringRef SectionName; 3677 getSectionNameIndex(*Obj, Symbol, First, this->dumper()->getShndxTable(), 3678 SectionName, SectionIndex); 3679 std::string FullSymbolName = 3680 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic); 3681 unsigned char SymbolType = Symbol->getType(); 3682 3683 DictScope D(W, "Symbol"); 3684 W.printNumber("Name", FullSymbolName, Symbol->st_name); 3685 W.printHex("Value", Symbol->st_value); 3686 W.printNumber("Size", Symbol->st_size); 3687 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings)); 3688 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU && 3689 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS) 3690 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes)); 3691 else 3692 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes)); 3693 if (Symbol->st_other == 0) 3694 // Usually st_other flag is zero. Do not pollute the output 3695 // by flags enumeration in that case. 3696 W.printNumber("Other", 0); 3697 else { 3698 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags), 3699 std::end(ElfSymOtherFlags)); 3700 if (Obj->getHeader()->e_machine == EM_MIPS) { 3701 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16 3702 // flag overlapped with other ST_MIPS_xxx flags. So consider both 3703 // cases separately. 3704 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16) 3705 SymOtherFlags.insert(SymOtherFlags.end(), 3706 std::begin(ElfMips16SymOtherFlags), 3707 std::end(ElfMips16SymOtherFlags)); 3708 else 3709 SymOtherFlags.insert(SymOtherFlags.end(), 3710 std::begin(ElfMipsSymOtherFlags), 3711 std::end(ElfMipsSymOtherFlags)); 3712 } 3713 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u); 3714 } 3715 W.printHex("Section", SectionName, SectionIndex); 3716 } 3717 3718 template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) { 3719 ListScope Group(W, "Symbols"); 3720 this->dumper()->printSymbolsHelper(false); 3721 } 3722 3723 template <class ELFT> 3724 void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) { 3725 ListScope Group(W, "DynamicSymbols"); 3726 this->dumper()->printSymbolsHelper(true); 3727 } 3728 3729 template <class ELFT> 3730 void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) { 3731 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion(); 3732 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion(); 3733 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion(); 3734 if (DynRelRegion.Size && DynRelaRegion.Size) 3735 report_fatal_error("There are both REL and RELA dynamic relocations"); 3736 W.startLine() << "Dynamic Relocations {\n"; 3737 W.indent(); 3738 if (DynRelaRegion.Size > 0) 3739 for (const Elf_Rela &Rela : this->dumper()->dyn_relas()) 3740 printDynamicRelocation(Obj, Rela); 3741 else 3742 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) { 3743 Elf_Rela Rela; 3744 Rela.r_offset = Rel.r_offset; 3745 Rela.r_info = Rel.r_info; 3746 Rela.r_addend = 0; 3747 printDynamicRelocation(Obj, Rela); 3748 } 3749 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) 3750 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>()) 3751 printDynamicRelocation(Obj, Rela); 3752 else 3753 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) { 3754 Elf_Rela Rela; 3755 Rela.r_offset = Rel.r_offset; 3756 Rela.r_info = Rel.r_info; 3757 Rela.r_addend = 0; 3758 printDynamicRelocation(Obj, Rela); 3759 } 3760 W.unindent(); 3761 W.startLine() << "}\n"; 3762 } 3763 3764 template <class ELFT> 3765 void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) { 3766 SmallString<32> RelocName; 3767 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 3768 StringRef SymbolName; 3769 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL()); 3770 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex; 3771 SymbolName = 3772 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())); 3773 if (opts::ExpandRelocs) { 3774 DictScope Group(W, "Relocation"); 3775 W.printHex("Offset", Rel.r_offset); 3776 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 3777 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-"); 3778 W.printHex("Addend", Rel.r_addend); 3779 } else { 3780 raw_ostream &OS = W.startLine(); 3781 OS << W.hex(Rel.r_offset) << " " << RelocName << " " 3782 << (!SymbolName.empty() ? SymbolName : "-") << " " 3783 << W.hex(Rel.r_addend) << "\n"; 3784 } 3785 } 3786 3787 template <class ELFT> 3788 void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) { 3789 ListScope L(W, "ProgramHeaders"); 3790 3791 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) { 3792 DictScope P(W, "ProgramHeader"); 3793 W.printHex("Type", 3794 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type), 3795 Phdr.p_type); 3796 W.printHex("Offset", Phdr.p_offset); 3797 W.printHex("VirtualAddress", Phdr.p_vaddr); 3798 W.printHex("PhysicalAddress", Phdr.p_paddr); 3799 W.printNumber("FileSize", Phdr.p_filesz); 3800 W.printNumber("MemSize", Phdr.p_memsz); 3801 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags)); 3802 W.printNumber("Alignment", Phdr.p_align); 3803 } 3804 } 3805 3806 template <class ELFT> 3807 void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) { 3808 W.startLine() << "Hash Histogram not implemented!\n"; 3809 } 3810 3811 template <class ELFT> 3812 void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) { 3813 W.startLine() << "printNotes not implemented!\n"; 3814 } 3815