llvm.org GIT mirror llvm / release_34 include / llvm / Object / ELFYAML.h
release_34

Tree @release_34 (Download .tar.gz)

ELFYAML.h @release_34

5918b7a
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
981aec8
 
 
 
ea94e11
274264c
 
 
5ba1225
5918b7a
 
 
457c8eb
5918b7a
 
ea94e11
5918b7a
 
 
 
afcf60f
 
5ba1225
6525e92
e38f640
 
afcf60f
4235ba3
 
 
 
 
274264c
 
 
 
45b812d
2a7e79a
fe57e34
97d37e8
274264c
5918b7a
457c8eb
274264c
068463b
 
 
 
 
5918b7a
 
 
 
 
274264c
afcf60f
274264c
5918b7a
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ea94e11
 
 
 
 
5918b7a
 
 
274264c
 
 
 
 
 
 
 
 
 
5ba1225
 
 
 
 
457c8eb
 
5918b7a
 
 
afcf60f
 
 
 
 
4235ba3
 
 
 
 
274264c
 
 
 
 
5918b7a
 
 
 
 
 
 
 
//===- 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_OBJECT_ELFYAML_H
#define LLVM_OBJECT_ELFYAML_H

#include "llvm/Object/YAML.h"
#include "llvm/Support/ELF.h"

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_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)
LLVM_YAML_STRONG_TYPEDEF(uint32_t, ELF_SHT)
// Just use 64, since it can hold 32-bit values too.
LLVM_YAML_STRONG_TYPEDEF(uint64_t, ELF_SHF)
LLVM_YAML_STRONG_TYPEDEF(uint8_t, ELF_STT)

// 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;
  llvm::yaml::Hex64 Entry;
};
struct Symbol {
  StringRef Name;
  ELF_STT Type;
  StringRef Section;
  llvm::yaml::Hex64 Value;
  llvm::yaml::Hex64 Size;
};
struct LocalGlobalWeakSymbols {
  std::vector<Symbol> Local;
  std::vector<Symbol> Global;
  std::vector<Symbol> Weak;
};
struct Section {
  StringRef Name;
  ELF_SHT Type;
  ELF_SHF Flags;
  llvm::yaml::Hex64 Address;
  object::yaml::BinaryRef Content;
  StringRef Link;
  llvm::yaml::Hex64 AddressAlign;
};
struct Object {
  FileHeader Header;
  std::vector<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;
};

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

LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::Section)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::ELFYAML::Symbol)

namespace llvm {
namespace yaml {

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

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

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

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

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

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

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

#endif