This file is indexed.

/usr/include/llvm-6.0/llvm/ObjectYAML/ELFYAML.h is in llvm-6.0-dev 1:6.0-1ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
//===- ELFYAML.h - ELF YAMLIO implementation --------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file declares classes for handling the YAML representation
/// of ELF.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_OBJECTYAML_ELFYAML_H
#define LLVM_OBJECTYAML_ELFYAML_H

#include "llvm/ADT/StringRef.h"
#include "llvm/ObjectYAML/YAML.h"
#include "llvm/Support/YAMLTraits.h"
#include <cstdint>
#include <memory>
#include <vector>

namespace llvm {
namespace ELFYAML {

// These types are invariant across 32/64-bit ELF, so for simplicity just
// directly give them their exact sizes. We don't need to worry about
// endianness because these are just the types in the YAMLIO structures,
// and are appropriately converted to the necessary endianness when
// reading/generating binary object files.
// The naming of these types is intended to be ELF_PREFIX, where PREFIX is
// the common prefix of the respective constants. E.g. ELF_EM corresponds
// to the `e_machine` constants, like `EM_X86_64`.
// In the future, these would probably be better suited by C++11 enum
// class's with appropriate fixed underlying type.
LLVM_YAML_STRONG_TYPEDEF(uint16_t, ELF_ET)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_PT)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_EM)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_ELFCLASS)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_ELFDATA)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_ELFOSABI)
// Just use 64, since it can hold 32-bit values too.
LLVM_YAML_STRONG_TYPEDEF(uint64_t, ELF_EF)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_PF)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_SHT)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_REL)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_RSS)
// Just use 64, since it can hold 32-bit values too.
LLVM_YAML_STRONG_TYPEDEF(uint64_t, ELF_SHF)
LLVM_YAML_STRONG_TYPEDEF(uint16_t, ELF_SHN)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STT)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STV)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STO)

LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_ISA)

// For now, hardcode 64 bits everywhere that 32 or 64 would be needed
// since 64-bit can hold 32-bit values too.
struct FileHeader {
  ELF_ELFCLASS Class;
  ELF_ELFDATA Data;
  ELF_ELFOSABI OSABI;
  ELF_ET Type;
  ELF_EM Machine;
  ELF_EF Flags;
  llvm::yaml::Hex64 Entry;
};

struct SectionName {
  StringRef Section;
};

struct ProgramHeader {
  ELF_PT Type;
  ELF_PF Flags;
  llvm::yaml::Hex64 VAddr;
  llvm::yaml::Hex64 PAddr;
  Optional<llvm::yaml::Hex64> Align;
  std::vector<SectionName> Sections;
};

struct Symbol {
  StringRef Name;
  ELF_STT Type;
  StringRef Section;
  Optional<ELF_SHN> Index;
  llvm::yaml::Hex64 Value;
  llvm::yaml::Hex64 Size;
  uint8_t Other;
};

struct LocalGlobalWeakSymbols {
  std::vector<Symbol> Local;
  std::vector<Symbol> Global;
  std::vector<Symbol> Weak;
};

struct SectionOrType {
  StringRef sectionNameOrType;
};

struct Section {
  enum class SectionKind {
    Group,
    RawContent,
    Relocation,
    NoBits,
    MipsABIFlags
  };
  SectionKind Kind;
  StringRef Name;
  ELF_SHT Type;
  ELF_SHF Flags;
  llvm::yaml::Hex64 Address;
  StringRef Link;
  StringRef Info;
  llvm::yaml::Hex64 AddressAlign;

  Section(SectionKind Kind) : Kind(Kind) {}
  virtual ~Section();
};
struct RawContentSection : Section {
  yaml::BinaryRef Content;
  llvm::yaml::Hex64 Size;

  RawContentSection() : Section(SectionKind::RawContent) {}

  static bool classof(const Section *S) {
    return S->Kind == SectionKind::RawContent;
  }
};

struct NoBitsSection : Section {
  llvm::yaml::Hex64 Size;

  NoBitsSection() : Section(SectionKind::NoBits) {}

  static bool classof(const Section *S) {
    return S->Kind == SectionKind::NoBits;
  }
};

struct Group : Section {
  // Members of a group contain a flag and a list of section indices
  // that are part of the group.
  std::vector<SectionOrType> Members;

  Group() : Section(SectionKind::Group) {}

  static bool classof(const Section *S) {
    return S->Kind == SectionKind::Group;
  }
};

struct Relocation {
  llvm::yaml::Hex64 Offset;
  int64_t Addend;
  ELF_REL Type;
  Optional<StringRef> Symbol;
};

struct RelocationSection : Section {
  std::vector<Relocation> Relocations;

  RelocationSection() : Section(SectionKind::Relocation) {}

  static bool classof(const Section *S) {
    return S->Kind == SectionKind::Relocation;
  }
};

// Represents .MIPS.abiflags section
struct MipsABIFlags : Section {
  llvm::yaml::Hex16 Version;
  MIPS_ISA ISALevel;
  llvm::yaml::Hex8 ISARevision;
  MIPS_AFL_REG GPRSize;
  MIPS_AFL_REG CPR1Size;
  MIPS_AFL_REG CPR2Size;
  MIPS_ABI_FP FpABI;
  MIPS_AFL_EXT ISAExtension;
  MIPS_AFL_ASE ASEs;
  MIPS_AFL_FLAGS1 Flags1;
  llvm::yaml::Hex32 Flags2;

  MipsABIFlags() : Section(SectionKind::MipsABIFlags) {}

  static bool classof(const Section *S) {
    return S->Kind == SectionKind::MipsABIFlags;
  }
};

struct Object {
  FileHeader Header;
  std::vector<ProgramHeader> ProgramHeaders;
  std::vector<std::unique_ptr<Section>> Sections;
  // Although in reality the symbols reside in a section, it is a lot
  // cleaner and nicer if we read them from the YAML as a separate
  // top-level key, which automatically ensures that invariants like there
  // being a single SHT_SYMTAB section are upheld.
  LocalGlobalWeakSymbols Symbols;
  LocalGlobalWeakSymbols DynamicSymbols;
};

} // end namespace ELFYAML
} // end namespace llvm

LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::ProgramHeader)
LLVM_YAML_IS_SEQUENCE_VECTOR(std::unique_ptr<llvm::ELFYAML::Section>)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::Symbol)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::Relocation)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::SectionOrType)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::SectionName)

namespace llvm {
namespace yaml {

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_ET> {
  static void enumeration(IO &IO, ELFYAML::ELF_ET &Value);
};

template <> struct ScalarEnumerationTraits<ELFYAML::ELF_PT> {
  static void enumeration(IO &IO, ELFYAML::ELF_PT &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_EM> {
  static void enumeration(IO &IO, ELFYAML::ELF_EM &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_ELFCLASS> {
  static void enumeration(IO &IO, ELFYAML::ELF_ELFCLASS &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_ELFDATA> {
  static void enumeration(IO &IO, ELFYAML::ELF_ELFDATA &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_ELFOSABI> {
  static void enumeration(IO &IO, ELFYAML::ELF_ELFOSABI &Value);
};

template <>
struct ScalarBitSetTraits<ELFYAML::ELF_EF> {
  static void bitset(IO &IO, ELFYAML::ELF_EF &Value);
};

template <> struct ScalarBitSetTraits<ELFYAML::ELF_PF> {
  static void bitset(IO &IO, ELFYAML::ELF_PF &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_SHT> {
  static void enumeration(IO &IO, ELFYAML::ELF_SHT &Value);
};

template <>
struct ScalarBitSetTraits<ELFYAML::ELF_SHF> {
  static void bitset(IO &IO, ELFYAML::ELF_SHF &Value);
};

template <> struct ScalarEnumerationTraits<ELFYAML::ELF_SHN> {
  static void enumeration(IO &IO, ELFYAML::ELF_SHN &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_STT> {
  static void enumeration(IO &IO, ELFYAML::ELF_STT &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_STV> {
  static void enumeration(IO &IO, ELFYAML::ELF_STV &Value);
};

template <>
struct ScalarBitSetTraits<ELFYAML::ELF_STO> {
  static void bitset(IO &IO, ELFYAML::ELF_STO &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_REL> {
  static void enumeration(IO &IO, ELFYAML::ELF_REL &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::ELF_RSS> {
  static void enumeration(IO &IO, ELFYAML::ELF_RSS &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG> {
  static void enumeration(IO &IO, ELFYAML::MIPS_AFL_REG &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP> {
  static void enumeration(IO &IO, ELFYAML::MIPS_ABI_FP &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT> {
  static void enumeration(IO &IO, ELFYAML::MIPS_AFL_EXT &Value);
};

template <>
struct ScalarEnumerationTraits<ELFYAML::MIPS_ISA> {
  static void enumeration(IO &IO, ELFYAML::MIPS_ISA &Value);
};

template <>
struct ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE> {
  static void bitset(IO &IO, ELFYAML::MIPS_AFL_ASE &Value);
};

template <>
struct ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1> {
  static void bitset(IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value);
};

template <>
struct MappingTraits<ELFYAML::FileHeader> {
  static void mapping(IO &IO, ELFYAML::FileHeader &FileHdr);
};

template <> struct MappingTraits<ELFYAML::ProgramHeader> {
  static void mapping(IO &IO, ELFYAML::ProgramHeader &FileHdr);
};

template <>
struct MappingTraits<ELFYAML::Symbol> {
  static void mapping(IO &IO, ELFYAML::Symbol &Symbol);
  static StringRef validate(IO &IO, ELFYAML::Symbol &Symbol);
};

template <>
struct MappingTraits<ELFYAML::LocalGlobalWeakSymbols> {
  static void mapping(IO &IO, ELFYAML::LocalGlobalWeakSymbols &Symbols);
};

template <> struct MappingTraits<ELFYAML::Relocation> {
  static void mapping(IO &IO, ELFYAML::Relocation &Rel);
};

template <>
struct MappingTraits<std::unique_ptr<ELFYAML::Section>> {
  static void mapping(IO &IO, std::unique_ptr<ELFYAML::Section> &Section);
  static StringRef validate(IO &io, std::unique_ptr<ELFYAML::Section> &Section);
};

template <>
struct MappingTraits<ELFYAML::Object> {
  static void mapping(IO &IO, ELFYAML::Object &Object);
};

template <> struct MappingTraits<ELFYAML::SectionOrType> {
  static void mapping(IO &IO, ELFYAML::SectionOrType &sectionOrType);
};

template <> struct MappingTraits<ELFYAML::SectionName> {
  static void mapping(IO &IO, ELFYAML::SectionName &sectionName);
};

} // end namespace yaml
} // end namespace llvm

#endif // LLVM_OBJECTYAML_ELFYAML_H