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