LLVM  6.0.0svn
ELF.h
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1 //===- ELF.h - ELF object file implementation -------------------*- 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 // This file declares the ELFFile template class.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_OBJECT_ELF_H
15 #define LLVM_OBJECT_ELF_H
16 
17 #include "llvm/ADT/ArrayRef.h"
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/ADT/StringRef.h"
20 #include "llvm/BinaryFormat/ELF.h"
21 #include "llvm/Object/ELFTypes.h"
22 #include "llvm/Object/Error.h"
23 #include "llvm/Support/Endian.h"
24 #include "llvm/Support/Error.h"
25 #include <cassert>
26 #include <cstddef>
27 #include <cstdint>
28 #include <limits>
29 #include <utility>
30 
31 namespace llvm {
32 namespace object {
33 
36 
37 // Subclasses of ELFFile may need this for template instantiation
38 inline std::pair<unsigned char, unsigned char>
40  if (Object.size() < ELF::EI_NIDENT)
41  return std::make_pair((uint8_t)ELF::ELFCLASSNONE,
42  (uint8_t)ELF::ELFDATANONE);
43  return std::make_pair((uint8_t)Object[ELF::EI_CLASS],
44  (uint8_t)Object[ELF::EI_DATA]);
45 }
46 
47 static inline Error createError(StringRef Err) {
48  return make_error<StringError>(Err, object_error::parse_failed);
49 }
50 
51 template <class ELFT>
52 class ELFFile {
53 public:
55  using uintX_t = typename ELFT::uint;
56  using Elf_Ehdr = typename ELFT::Ehdr;
57  using Elf_Shdr = typename ELFT::Shdr;
58  using Elf_Sym = typename ELFT::Sym;
59  using Elf_Dyn = typename ELFT::Dyn;
60  using Elf_Phdr = typename ELFT::Phdr;
61  using Elf_Rel = typename ELFT::Rel;
62  using Elf_Rela = typename ELFT::Rela;
63  using Elf_Verdef = typename ELFT::Verdef;
64  using Elf_Verdaux = typename ELFT::Verdaux;
65  using Elf_Verneed = typename ELFT::Verneed;
66  using Elf_Vernaux = typename ELFT::Vernaux;
67  using Elf_Versym = typename ELFT::Versym;
68  using Elf_Hash = typename ELFT::Hash;
69  using Elf_GnuHash = typename ELFT::GnuHash;
70  using Elf_Dyn_Range = typename ELFT::DynRange;
71  using Elf_Shdr_Range = typename ELFT::ShdrRange;
72  using Elf_Sym_Range = typename ELFT::SymRange;
73  using Elf_Rel_Range = typename ELFT::RelRange;
74  using Elf_Rela_Range = typename ELFT::RelaRange;
75  using Elf_Phdr_Range = typename ELFT::PhdrRange;
76 
77  const uint8_t *base() const {
78  return reinterpret_cast<const uint8_t *>(Buf.data());
79  }
80 
81  size_t getBufSize() const { return Buf.size(); }
82 
83 private:
84  StringRef Buf;
85 
86  ELFFile(StringRef Object);
87 
88 public:
89  const Elf_Ehdr *getHeader() const {
90  return reinterpret_cast<const Elf_Ehdr *>(base());
91  }
92 
93  template <typename T>
95  template <typename T>
96  Expected<const T *> getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
97 
98  Expected<StringRef> getStringTable(const Elf_Shdr *Section) const;
101  Elf_Shdr_Range Sections) const;
102 
103  Expected<ArrayRef<Elf_Word>> getSHNDXTable(const Elf_Shdr &Section) const;
105  Elf_Shdr_Range Sections) const;
106 
109  SmallVectorImpl<char> &Result) const;
110 
111  /// \brief Get the symbol for a given relocation.
113  const Elf_Shdr *SymTab) const;
114 
115  static Expected<ELFFile> create(StringRef Object);
116 
117  bool isMipsELF64() const {
118  return getHeader()->e_machine == ELF::EM_MIPS &&
119  getHeader()->getFileClass() == ELF::ELFCLASS64;
120  }
121 
122  bool isMips64EL() const {
123  return isMipsELF64() &&
124  getHeader()->getDataEncoding() == ELF::ELFDATA2LSB;
125  }
126 
128 
130  if (!Sec)
131  return makeArrayRef<Elf_Sym>(nullptr, nullptr);
132  return getSectionContentsAsArray<Elf_Sym>(Sec);
133  }
134 
136  return getSectionContentsAsArray<Elf_Rela>(Sec);
137  }
138 
140  return getSectionContentsAsArray<Elf_Rel>(Sec);
141  }
142 
144 
145  /// \brief Iterate over program header table.
147  if (getHeader()->e_phnum && getHeader()->e_phentsize != sizeof(Elf_Phdr))
148  return createError("invalid e_phentsize");
149  if (getHeader()->e_phoff +
150  (getHeader()->e_phnum * getHeader()->e_phentsize) >
151  getBufSize())
152  return createError("program headers longer than binary");
153  auto *Begin =
154  reinterpret_cast<const Elf_Phdr *>(base() + getHeader()->e_phoff);
155  return makeArrayRef(Begin, Begin + getHeader()->e_phnum);
156  }
157 
160  ArrayRef<Elf_Word> ShndxTable) const;
162  const Elf_Shdr *SymTab,
163  ArrayRef<Elf_Word> ShndxTable) const;
165  Elf_Sym_Range Symtab,
166  ArrayRef<Elf_Word> ShndxTable) const;
168 
170  uint32_t Index) const;
171 
172  Expected<StringRef> getSectionName(const Elf_Shdr *Section) const;
174  StringRef DotShstrtab) const;
175  template <typename T>
178 };
179 
184 
185 template <class ELFT>
187 getSection(typename ELFT::ShdrRange Sections, uint32_t Index) {
188  if (Index >= Sections.size())
189  return createError("invalid section index");
190  return &Sections[Index];
191 }
192 
193 template <class ELFT>
194 inline Expected<uint32_t>
195 getExtendedSymbolTableIndex(const typename ELFT::Sym *Sym,
196  const typename ELFT::Sym *FirstSym,
197  ArrayRef<typename ELFT::Word> ShndxTable) {
198  assert(Sym->st_shndx == ELF::SHN_XINDEX);
199  unsigned Index = Sym - FirstSym;
200  if (Index >= ShndxTable.size())
201  return createError("index past the end of the symbol table");
202 
203  // The size of the table was checked in getSHNDXTable.
204  return ShndxTable[Index];
205 }
206 
207 template <class ELFT>
210  ArrayRef<Elf_Word> ShndxTable) const {
211  uint32_t Index = Sym->st_shndx;
212  if (Index == ELF::SHN_XINDEX) {
213  auto ErrorOrIndex = getExtendedSymbolTableIndex<ELFT>(
214  Sym, Syms.begin(), ShndxTable);
215  if (!ErrorOrIndex)
216  return ErrorOrIndex.takeError();
217  return *ErrorOrIndex;
218  }
219  if (Index == ELF::SHN_UNDEF || Index >= ELF::SHN_LORESERVE)
220  return 0;
221  return Index;
222 }
223 
224 template <class ELFT>
226 ELFFile<ELFT>::getSection(const Elf_Sym *Sym, const Elf_Shdr *SymTab,
227  ArrayRef<Elf_Word> ShndxTable) const {
228  auto SymsOrErr = symbols(SymTab);
229  if (!SymsOrErr)
230  return SymsOrErr.takeError();
231  return getSection(Sym, *SymsOrErr, ShndxTable);
232 }
233 
234 template <class ELFT>
237  ArrayRef<Elf_Word> ShndxTable) const {
238  auto IndexOrErr = getSectionIndex(Sym, Symbols, ShndxTable);
239  if (!IndexOrErr)
240  return IndexOrErr.takeError();
241  uint32_t Index = *IndexOrErr;
242  if (Index == 0)
243  return nullptr;
244  return getSection(Index);
245 }
246 
247 template <class ELFT>
249 getSymbol(typename ELFT::SymRange Symbols, uint32_t Index) {
250  if (Index >= Symbols.size())
251  return createError("invalid symbol index");
252  return &Symbols[Index];
253 }
254 
255 template <class ELFT>
257 ELFFile<ELFT>::getSymbol(const Elf_Shdr *Sec, uint32_t Index) const {
258  auto SymtabOrErr = symbols(Sec);
259  if (!SymtabOrErr)
260  return SymtabOrErr.takeError();
261  return object::getSymbol<ELFT>(*SymtabOrErr, Index);
262 }
263 
264 template <class ELFT>
265 template <typename T>
268  if (Sec->sh_entsize != sizeof(T) && sizeof(T) != 1)
269  return createError("invalid sh_entsize");
270 
271  uintX_t Offset = Sec->sh_offset;
272  uintX_t Size = Sec->sh_size;
273 
274  if (Size % sizeof(T))
275  return createError("size is not a multiple of sh_entsize");
276  if ((std::numeric_limits<uintX_t>::max() - Offset < Size) ||
277  Offset + Size > Buf.size())
278  return createError("invalid section offset");
279 
280  const T *Start = reinterpret_cast<const T *>(base() + Offset);
281  return makeArrayRef(Start, Size / sizeof(T));
282 }
283 
284 template <class ELFT>
287  return getSectionContentsAsArray<uint8_t>(Sec);
288 }
289 
290 template <class ELFT>
292  return getELFRelocationTypeName(getHeader()->e_machine, Type);
293 }
294 
295 template <class ELFT>
297  SmallVectorImpl<char> &Result) const {
298  if (!isMipsELF64()) {
300  Result.append(Name.begin(), Name.end());
301  } else {
302  // The Mips N64 ABI allows up to three operations to be specified per
303  // relocation record. Unfortunately there's no easy way to test for the
304  // presence of N64 ELFs as they have no special flag that identifies them
305  // as being N64. We can safely assume at the moment that all Mips
306  // ELFCLASS64 ELFs are N64. New Mips64 ABIs should provide enough
307  // information to disambiguate between old vs new ABIs.
308  uint8_t Type1 = (Type >> 0) & 0xFF;
309  uint8_t Type2 = (Type >> 8) & 0xFF;
310  uint8_t Type3 = (Type >> 16) & 0xFF;
311 
312  // Concat all three relocation type names.
314  Result.append(Name.begin(), Name.end());
315 
316  Name = getRelocationTypeName(Type2);
317  Result.append(1, '/');
318  Result.append(Name.begin(), Name.end());
319 
320  Name = getRelocationTypeName(Type3);
321  Result.append(1, '/');
322  Result.append(Name.begin(), Name.end());
323  }
324 }
325 
326 template <class ELFT>
329  const Elf_Shdr *SymTab) const {
330  uint32_t Index = Rel->getSymbol(isMips64EL());
331  if (Index == 0)
332  return nullptr;
333  return getEntry<Elf_Sym>(SymTab, Index);
334 }
335 
336 template <class ELFT>
339  uint32_t Index = getHeader()->e_shstrndx;
340  if (Index == ELF::SHN_XINDEX)
341  Index = Sections[0].sh_link;
342 
343  if (!Index) // no section string table.
344  return "";
345  if (Index >= Sections.size())
346  return createError("invalid section index");
347  return getStringTable(&Sections[Index]);
348 }
349 
350 template <class ELFT> ELFFile<ELFT>::ELFFile(StringRef Object) : Buf(Object) {}
351 
352 template <class ELFT>
354  if (sizeof(Elf_Ehdr) > Object.size())
355  return createError("Invalid buffer");
356  return ELFFile(Object);
357 }
358 
359 template <class ELFT>
361  const uintX_t SectionTableOffset = getHeader()->e_shoff;
362  if (SectionTableOffset == 0)
363  return ArrayRef<Elf_Shdr>();
364 
365  if (getHeader()->e_shentsize != sizeof(Elf_Shdr))
366  return createError(
367  "invalid section header entry size (e_shentsize) in ELF header");
368 
369  const uint64_t FileSize = Buf.size();
370 
371  if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
372  return createError("section header table goes past the end of the file");
373 
374  // Invalid address alignment of section headers
375  if (SectionTableOffset & (alignof(Elf_Shdr) - 1))
376  return createError("invalid alignment of section headers");
377 
378  const Elf_Shdr *First =
379  reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
380 
381  uintX_t NumSections = getHeader()->e_shnum;
382  if (NumSections == 0)
383  NumSections = First->sh_size;
384 
385  if (NumSections > UINT64_MAX / sizeof(Elf_Shdr))
386  return createError("section table goes past the end of file");
387 
388  const uint64_t SectionTableSize = NumSections * sizeof(Elf_Shdr);
389 
390  // Section table goes past end of file!
391  if (SectionTableOffset + SectionTableSize > FileSize)
392  return createError("section table goes past the end of file");
393 
394  return makeArrayRef(First, NumSections);
395 }
396 
397 template <class ELFT>
398 template <typename T>
400  uint32_t Entry) const {
401  auto SecOrErr = getSection(Section);
402  if (!SecOrErr)
403  return SecOrErr.takeError();
404  return getEntry<T>(*SecOrErr, Entry);
405 }
406 
407 template <class ELFT>
408 template <typename T>
410  uint32_t Entry) const {
411  if (sizeof(T) != Section->sh_entsize)
412  return createError("invalid sh_entsize");
413  size_t Pos = Section->sh_offset + Entry * sizeof(T);
414  if (Pos + sizeof(T) > Buf.size())
415  return createError("invalid section offset");
416  return reinterpret_cast<const T *>(base() + Pos);
417 }
418 
419 template <class ELFT>
422  auto TableOrErr = sections();
423  if (!TableOrErr)
424  return TableOrErr.takeError();
425  return object::getSection<ELFT>(*TableOrErr, Index);
426 }
427 
428 template <class ELFT>
431  if (Section->sh_type != ELF::SHT_STRTAB)
432  return createError("invalid sh_type for string table, expected SHT_STRTAB");
433  auto V = getSectionContentsAsArray<char>(Section);
434  if (!V)
435  return V.takeError();
436  ArrayRef<char> Data = *V;
437  if (Data.empty())
438  return createError("empty string table");
439  if (Data.back() != '\0')
440  return createError("string table non-null terminated");
441  return StringRef(Data.begin(), Data.size());
442 }
443 
444 template <class ELFT>
447  auto SectionsOrErr = sections();
448  if (!SectionsOrErr)
449  return SectionsOrErr.takeError();
450  return getSHNDXTable(Section, *SectionsOrErr);
451 }
452 
453 template <class ELFT>
456  Elf_Shdr_Range Sections) const {
457  assert(Section.sh_type == ELF::SHT_SYMTAB_SHNDX);
458  auto VOrErr = getSectionContentsAsArray<Elf_Word>(&Section);
459  if (!VOrErr)
460  return VOrErr.takeError();
461  ArrayRef<Elf_Word> V = *VOrErr;
462  auto SymTableOrErr = object::getSection<ELFT>(Sections, Section.sh_link);
463  if (!SymTableOrErr)
464  return SymTableOrErr.takeError();
465  const Elf_Shdr &SymTable = **SymTableOrErr;
466  if (SymTable.sh_type != ELF::SHT_SYMTAB &&
467  SymTable.sh_type != ELF::SHT_DYNSYM)
468  return createError("invalid sh_type");
469  if (V.size() != (SymTable.sh_size / sizeof(Elf_Sym)))
470  return createError("invalid section contents size");
471  return V;
472 }
473 
474 template <class ELFT>
477  auto SectionsOrErr = sections();
478  if (!SectionsOrErr)
479  return SectionsOrErr.takeError();
480  return getStringTableForSymtab(Sec, *SectionsOrErr);
481 }
482 
483 template <class ELFT>
486  Elf_Shdr_Range Sections) const {
487 
488  if (Sec.sh_type != ELF::SHT_SYMTAB && Sec.sh_type != ELF::SHT_DYNSYM)
489  return createError(
490  "invalid sh_type for symbol table, expected SHT_SYMTAB or SHT_DYNSYM");
491  auto SectionOrErr = object::getSection<ELFT>(Sections, Sec.sh_link);
492  if (!SectionOrErr)
493  return SectionOrErr.takeError();
494  return getStringTable(*SectionOrErr);
495 }
496 
497 template <class ELFT>
500  auto SectionsOrErr = sections();
501  if (!SectionsOrErr)
502  return SectionsOrErr.takeError();
503  auto Table = getSectionStringTable(*SectionsOrErr);
504  if (!Table)
505  return Table.takeError();
506  return getSectionName(Section, *Table);
507 }
508 
509 template <class ELFT>
511  StringRef DotShstrtab) const {
512  uint32_t Offset = Section->sh_name;
513  if (Offset == 0)
514  return StringRef();
515  if (Offset >= DotShstrtab.size())
516  return createError("invalid string offset");
517  return StringRef(DotShstrtab.data() + Offset);
518 }
519 
520 /// This function returns the hash value for a symbol in the .dynsym section
521 /// Name of the API remains consistent as specified in the libelf
522 /// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
523 inline unsigned hashSysV(StringRef SymbolName) {
524  unsigned h = 0, g;
525  for (char C : SymbolName) {
526  h = (h << 4) + C;
527  g = h & 0xf0000000L;
528  if (g != 0)
529  h ^= g >> 24;
530  h &= ~g;
531  }
532  return h;
533 }
534 
535 } // end namespace object
536 } // end namespace llvm
537 
538 #endif // LLVM_OBJECT_ELF_H
typename ELFT::Dyn Elf_Dyn
Definition: ELF.h:59
uint64_t CallInst * C
GCNRegPressure max(const GCNRegPressure &P1, const GCNRegPressure &P2)
const T & back() const
back - Get the last element.
Definition: ArrayRef.h:158
typename ELFT::Rel Elf_Rel
Definition: ELF.h:61
Expected< const T * > getEntry(uint32_t Section, uint32_t Entry) const
Definition: ELF.h:399
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
static Expected< ELFFile > create(StringRef Object)
Definition: ELF.h:353
iterator begin() const
Definition: ArrayRef.h:137
typename ELFT::Vernaux Elf_Vernaux
Definition: ELF.h:66
StringRef getELFSectionTypeName(uint32_t Machine, uint32_t Type)
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE size_t size() const
size - Get the string size.
Definition: StringRef.h:138
StringRef getRelocationTypeName(uint32_t Type) const
Definition: ELF.h:291
Expected< StringRef > getSectionStringTable(Elf_Shdr_Range Sections) const
Definition: ELF.h:338
ELFYAML::ELF_REL Type3
Definition: ELFYAML.cpp:900
Expected< StringRef > getStringTable(const Elf_Shdr *Section) const
Definition: ELF.h:430
static Error createError(StringRef Err)
Definition: ELF.h:47
unsigned hashSysV(StringRef SymbolName)
This function returns the hash value for a symbol in the .dynsym section Name of the API remains cons...
Definition: ELF.h:523
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE const char * data() const
data - Get a pointer to the start of the string (which may not be null terminated).
Definition: StringRef.h:128
typename ELFT::Sym Elf_Sym
Definition: ELF.h:58
Expected< Elf_Phdr_Range > program_headers() const
Iterate over program header table.
Definition: ELF.h:146
const uint8_t * base() const
Definition: ELF.h:77
Expected< const Elf_Shdr * > getSection(const Elf_Sym *Sym, const Elf_Shdr *SymTab, ArrayRef< Elf_Word > ShndxTable) const
Definition: ELF.h:226
constexpr char SymbolName[]
Key for Kernel::Metadata::mSymbolName.
bool isMips64EL() const
Definition: ELF.h:122
ArrayRef< T > makeArrayRef(const T &OneElt)
Construct an ArrayRef from a single element.
Definition: ArrayRef.h:451
Expected< Elf_Shdr_Range > sections() const
Definition: ELF.h:360
typename ELFT::PhdrRange Elf_Phdr_Range
Definition: ELF.h:75
typename ELFT::Phdr Elf_Phdr
Definition: ELF.h:60
Tagged union holding either a T or a Error.
Definition: CachePruning.h:23
Expected< ArrayRef< uint8_t > > getSectionContents(const Elf_Shdr *Sec) const
Definition: ELF.h:286
#define T
std::pair< unsigned char, unsigned char > getElfArchType(StringRef Object)
Definition: ELF.h:39
typename ELFT::GnuHash Elf_GnuHash
Definition: ELF.h:69
COFF::MachineTypes Machine
Definition: COFFYAML.cpp:363
typename ELFT::SymRange Elf_Sym_Range
Definition: ELF.h:72
Expected< ArrayRef< T > > getSectionContentsAsArray(const Elf_Shdr *Sec) const
Definition: ELF.h:267
Expected< Elf_Rel_Range > rels(const Elf_Shdr *Sec) const
Definition: ELF.h:139
Expected< ArrayRef< Elf_Word > > getSHNDXTable(const Elf_Shdr &Section) const
Definition: ELF.h:446
bool isMipsELF64() const
Definition: ELF.h:117
The instances of the Type class are immutable: once they are created, they are never changed...
Definition: Type.h:46
size_t size() const
size - Get the array size.
Definition: ArrayRef.h:149
Expected< StringRef > getStringTableForSymtab(const Elf_Shdr &Section) const
Definition: ELF.h:476
Expected< Elf_Rela_Range > relas(const Elf_Shdr *Sec) const
Definition: ELF.h:135
typename ELFT::uint uintX_t
Definition: ELF.h:55
Expected< uint32_t > getSectionIndex(const Elf_Sym *Sym, Elf_Sym_Range Syms, ArrayRef< Elf_Word > ShndxTable) const
Definition: ELF.h:209
typename ELFT::Verdaux Elf_Verdaux
Definition: ELF.h:64
typename ELFT::Ehdr Elf_Ehdr
Definition: ELF.h:56
typename ELFT::Rela Elf_Rela
Definition: ELF.h:62
typename ELFT::Verneed Elf_Verneed
Definition: ELF.h:65
StringRef getELFRelocationTypeName(uint32_t Machine, uint32_t Type)
Definition: ELF.cpp:23
Expected< uint32_t > getExtendedSymbolTableIndex(const typename ELFT::Sym *Sym, const typename ELFT::Sym *FirstSym, ArrayRef< typename ELFT::Word > ShndxTable)
Definition: ELF.h:195
size_t getBufSize() const
Definition: ELF.h:81
Expected< const Elf_Sym * > getRelocationSymbol(const Elf_Rel *Rel, const Elf_Shdr *SymTab) const
Get the symbol for a given relocation.
Definition: ELF.h:328
iterator begin() const
Definition: StringRef.h:106
void append(in_iter in_start, in_iter in_end)
Add the specified range to the end of the SmallVector.
Definition: SmallVector.h:398
typename ELFT::DynRange Elf_Dyn_Range
Definition: ELF.h:70
ELFYAML::ELF_REL Type2
Definition: ELFYAML.cpp:899
Expected< std::vector< Elf_Rela > > android_relas(const Elf_Shdr *Sec) const
Definition: ELF.cpp:219
Expected< const Elf_Sym * > getSymbol(const Elf_Shdr *Sec, uint32_t Index) const
Definition: ELF.h:257
Expected< Elf_Sym_Range > symbols(const Elf_Shdr *Sec) const
Definition: ELF.h:129
typename ELFT::Verdef Elf_Verdef
Definition: ELF.h:63
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
typename ELFT::RelRange Elf_Rel_Range
Definition: ELF.h:73
aarch64 promote const
typename ELFT::Versym Elf_Versym
Definition: ELF.h:67
constexpr char Size[]
Key for Kernel::Arg::Metadata::mSize.
typename ELFT::RelaRange Elf_Rela_Range
Definition: ELF.h:74
Lightweight error class with error context and mandatory checking.
Definition: Error.h:156
#define LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
Definition: ELFTypes.h:133
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:49
typename ELFT::ShdrRange Elf_Shdr_Range
Definition: ELF.h:71
const Elf_Ehdr * getHeader() const
Definition: ELF.h:89
iterator end() const
Definition: StringRef.h:108
typename ELFT::Shdr Elf_Shdr
Definition: ELF.h:57
Expected< StringRef > getSectionName(const Elf_Shdr *Section) const
Definition: ELF.h:499
bool empty() const
empty - Check if the array is empty.
Definition: ArrayRef.h:144
typename ELFT::Hash Elf_Hash
Definition: ELF.h:68