ELFObjectFile.cpp revision 4344b1ef9b3721a5ebc2e024f753772a1e4ddd92
1b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer//===- ELFObjectFile.cpp - ELF object file implementation -------*- C++ -*-===// 2b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// 3b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// The LLVM Compiler Infrastructure 4b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// 5b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// This file is distributed under the University of Illinois Open Source 6b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// License. See LICENSE.TXT for details. 7b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// 8b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer//===----------------------------------------------------------------------===// 9b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// 10b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// This file defines the ELFObjectFile class. 11b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// 12b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer//===----------------------------------------------------------------------===// 13b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 14b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/ADT/SmallVector.h" 15b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/ADT/StringSwitch.h" 16b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/ADT/Triple.h" 170fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer#include "llvm/ADT/DenseMap.h" 18b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/Object/ObjectFile.h" 19b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/Support/ELF.h" 20b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/Support/Endian.h" 21b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/Support/ErrorHandling.h" 22b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include "llvm/Support/MemoryBuffer.h" 234344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer#include "llvm/Support/raw_ostream.h" 244344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer#include <algorithm> 25b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include <limits> 26b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#include <utility> 27b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 28b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerusing namespace llvm; 29b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerusing namespace object; 30b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 31b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// Templates to choose Elf_Addr and Elf_Off depending on is64Bits. 32b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencernamespace { 33b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 34b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct ELFDataTypeTypedefHelperCommon { 35b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 36b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint16_t, target_endianness, support::aligned> Elf_Half; 37b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 38b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint32_t, target_endianness, support::aligned> Elf_Word; 39b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 40b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <int32_t, target_endianness, support::aligned> Elf_Sword; 41b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 42b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint64_t, target_endianness, support::aligned> Elf_Xword; 43b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 44b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <int64_t, target_endianness, support::aligned> Elf_Sxword; 45b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 46b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 47b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 48b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencernamespace { 49b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 50b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct ELFDataTypeTypedefHelper; 51b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 52b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer/// ELF 32bit types. 53b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 54b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct ELFDataTypeTypedefHelper<target_endianness, false> 55b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer : ELFDataTypeTypedefHelperCommon<target_endianness> { 56b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 57b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint32_t, target_endianness, support::aligned> Elf_Addr; 58b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 59b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint32_t, target_endianness, support::aligned> Elf_Off; 60b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 61b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 62b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer/// ELF 64bit types. 63b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 64b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct ELFDataTypeTypedefHelper<target_endianness, true> 65b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer : ELFDataTypeTypedefHelperCommon<target_endianness>{ 66b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 67b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint64_t, target_endianness, support::aligned> Elf_Addr; 68b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef support::detail::packed_endian_specific_integral 69b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer <uint64_t, target_endianness, support::aligned> Elf_Off; 70b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 71b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 72b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 73b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// I really don't like doing this, but the alternative is copypasta. 74b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer#define LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits) \ 75b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 76b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Addr Elf_Addr; \ 77b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 78b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Off Elf_Off; \ 79b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 80b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Half Elf_Half; \ 81b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 82b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Word Elf_Word; \ 83b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 84b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Sword Elf_Sword; \ 85b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 86b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Xword Elf_Xword; \ 87b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertypedef typename \ 88b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Sxword Elf_Sxword; 89b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 90b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Section header. 91b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencernamespace { 92b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 93b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Shdr_Base; 94b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 95b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 96b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Shdr_Base<target_endianness, false> { 97b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer LLVM_ELF_IMPORT_TYPES(target_endianness, false) 98b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_name; // Section name (index into string table) 99b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_type; // Section type (SHT_*) 100b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_flags; // Section flags (SHF_*) 101b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Addr sh_addr; // Address where section is to be loaded 102b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Off sh_offset; // File offset of section data, in bytes 103b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_size; // Size of section, in bytes 104b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_link; // Section type-specific header table index link 105b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_info; // Section type-specific extra information 106b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_addralign;// Section address alignment 107b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_entsize; // Size of records contained within the section 108b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 109b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 110b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 111b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Shdr_Base<target_endianness, true> { 112b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer LLVM_ELF_IMPORT_TYPES(target_endianness, true) 113b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_name; // Section name (index into string table) 114b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_type; // Section type (SHT_*) 115b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Xword sh_flags; // Section flags (SHF_*) 116b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Addr sh_addr; // Address where section is to be loaded 117b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Off sh_offset; // File offset of section data, in bytes 118b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Xword sh_size; // Size of section, in bytes 119b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_link; // Section type-specific header table index link 120b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word sh_info; // Section type-specific extra information 121b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Xword sh_addralign;// Section address alignment 122b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Xword sh_entsize; // Size of records contained within the section 123b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 124b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 125b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 126b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Shdr_Impl : Elf_Shdr_Base<target_endianness, is64Bits> { 127b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer using Elf_Shdr_Base<target_endianness, is64Bits>::sh_entsize; 128b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer using Elf_Shdr_Base<target_endianness, is64Bits>::sh_size; 129b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 130b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer /// @brief Get the number of entities this section contains if it has any. 131b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned getEntityCount() const { 132b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (sh_entsize == 0) 133b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return 0; 1347acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer return sh_size / sh_entsize; 135b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 136b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 137b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 138b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 139b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencernamespace { 140b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 141b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Sym_Base; 142b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 143b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 144b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Sym_Base<target_endianness, false> { 145b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer LLVM_ELF_IMPORT_TYPES(target_endianness, false) 146b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word st_name; // Symbol name (index into string table) 147b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Addr st_value; // Value or address associated with the symbol 148b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word st_size; // Size of the symbol 149b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char st_info; // Symbol's type and binding attributes 150b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char st_other; // Must be zero; reserved 151b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half st_shndx; // Which section (header table index) it's defined in 152b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 153b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 154b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness> 155b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Sym_Base<target_endianness, true> { 156b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer LLVM_ELF_IMPORT_TYPES(target_endianness, true) 157b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word st_name; // Symbol name (index into string table) 158b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char st_info; // Symbol's type and binding attributes 159b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char st_other; // Must be zero; reserved 160b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half st_shndx; // Which section (header table index) it's defined in 161b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Addr st_value; // Value or address associated with the symbol 162b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Xword st_size; // Size of the symbol 163b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 164b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 165b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 166b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstruct Elf_Sym_Impl : Elf_Sym_Base<target_endianness, is64Bits> { 167b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer using Elf_Sym_Base<target_endianness, is64Bits>::st_info; 168b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 169b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // These accessors and mutators correspond to the ELF32_ST_BIND, 170b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification: 171b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char getBinding() const { return st_info >> 4; } 172b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char getType() const { return st_info & 0x0f; } 173b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer void setBinding(unsigned char b) { setBindingAndType(b, getType()); } 174b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer void setType(unsigned char t) { setBindingAndType(getBinding(), t); } 175b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer void setBindingAndType(unsigned char b, unsigned char t) { 176b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer st_info = (b << 4) + (t & 0x0f); 177b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 178b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 179b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 180b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 181b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencernamespace { 1820fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits, bool isRela> 1830fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Base; 1840fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 1850fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness> 1860fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Base<target_endianness, false, false> { 1870fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer LLVM_ELF_IMPORT_TYPES(target_endianness, false) 1880fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 1890fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Word r_info; // Symbol table index and type of relocation to apply 1900fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer}; 1910fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 1920fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness> 1930fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Base<target_endianness, true, false> { 1940fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer LLVM_ELF_IMPORT_TYPES(target_endianness, true) 1950fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 1960fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Xword r_info; // Symbol table index and type of relocation to apply 1970fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer}; 1980fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 1990fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness> 2000fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Base<target_endianness, false, true> { 2010fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer LLVM_ELF_IMPORT_TYPES(target_endianness, false) 2020fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 2030fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Word r_info; // Symbol table index and type of relocation to apply 2040fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Sword r_addend; // Compute value for relocatable field by adding this 2050fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer}; 2060fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2070fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness> 2080fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Base<target_endianness, true, true> { 2090fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer LLVM_ELF_IMPORT_TYPES(target_endianness, true) 2100fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) 2110fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Xword r_info; // Symbol table index and type of relocation to apply 2120fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Elf_Sxword r_addend; // Compute value for relocatable field by adding this. 2130fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer}; 2140fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2150fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits, bool isRela> 2160fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Impl; 2170fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2180fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool isRela> 2190fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Impl<target_endianness, true, isRela> 2200fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer : Elf_Rel_Base<target_endianness, true, isRela> { 2210fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer using Elf_Rel_Base<target_endianness, true, isRela>::r_info; 2220fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer LLVM_ELF_IMPORT_TYPES(target_endianness, true) 2230fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2240fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE, 2250fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer // and ELF64_R_INFO macros defined in the ELF specification: 2260fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint64_t getSymbol() const { return (r_info >> 32); } 2270fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer unsigned char getType() const { 2280fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return (unsigned char) (r_info & 0xffffffffL); 2290fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 2300fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer void setSymbol(uint64_t s) { setSymbolAndType(s, getType()); } 2310fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } 2320fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer void setSymbolAndType(uint64_t s, unsigned char t) { 2330fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer r_info = (s << 32) + (t&0xffffffffL); 2340fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 2350fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer}; 2360fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2370fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool isRela> 2380fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerstruct Elf_Rel_Impl<target_endianness, false, isRela> 2390fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer : Elf_Rel_Base<target_endianness, false, isRela> { 2400fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer using Elf_Rel_Base<target_endianness, false, isRela>::r_info; 2410fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer LLVM_ELF_IMPORT_TYPES(target_endianness, false) 2420fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2430fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE, 2440fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer // and ELF32_R_INFO macros defined in the ELF specification: 2450fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint32_t getSymbol() const { return (r_info >> 8); } 2460fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); } 2470fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); } 2480fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } 2490fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer void setSymbolAndType(uint32_t s, unsigned char t) { 2500fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer r_info = (s << 8) + t; 2510fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 2520fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer}; 2530fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2540fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 2550fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 2560fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramernamespace { 257b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 258b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerclass ELFObjectFile : public ObjectFile { 259b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits) 260b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 261b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef Elf_Shdr_Impl<target_endianness, is64Bits> Elf_Shdr; 262b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer typedef Elf_Sym_Impl<target_endianness, is64Bits> Elf_Sym; 2630fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer typedef Elf_Rel_Impl<target_endianness, is64Bits, false> Elf_Rel; 2640fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer typedef Elf_Rel_Impl<target_endianness, is64Bits, true> Elf_Rela; 265b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 266b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer struct Elf_Ehdr { 267b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes 268b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_type; // Type of file (see ET_*) 269b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_machine; // Required architecture for this file (see EM_*) 270b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word e_version; // Must be equal to 1 271b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Addr e_entry; // Address to jump to in order to start program 272b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Off e_phoff; // Program header table's file offset, in bytes 273b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Off e_shoff; // Section header table's file offset, in bytes 274b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Word e_flags; // Processor-specific flags 275b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_ehsize; // Size of ELF header, in bytes 276b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_phentsize;// Size of an entry in the program header table 277b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_phnum; // Number of entries in the program header table 278b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_shentsize;// Size of an entry in the section header table 279b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_shnum; // Number of entries in the section header table 280b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer Elf_Half e_shstrndx; // Section header table index of section name 281b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // string table 282b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer bool checkMagic() const { 283b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0; 284b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 285b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; } 286b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; } 287b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer }; 288b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 2890fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer typedef SmallVector<const Elf_Shdr*, 1> Sections_t; 2900fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer typedef DenseMap<unsigned, unsigned> IndexMap_t; 2914344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t; 292b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 293b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Ehdr *Header; 294b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *SectionHeaderTable; 295b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *dot_shstrtab_sec; // Section header string table. 296b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *dot_strtab_sec; // Symbol header string table. 2970fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Sections_t SymbolTableSections; 2980fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer IndexMap_t SymbolTableSectionsIndexMap; 2994344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 3004344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer /// @brief Map sections to an array of relocation sections that reference 3014344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer /// them sorted by section index. 3024344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelocMap_t SectionRelocMap; 3034344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 3044344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer /// @brief Get the relocation section that contains \a Rel. 3054344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *getRelSection(DataRefImpl Rel) const { 3064344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return getSection(Rel.w.b); 3074344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 308b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 309b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer void validateSymbol(DataRefImpl Symb) const; 3100fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer bool isRelocationHasAddend(DataRefImpl Rel) const; 3110fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer template<typename T> 3124344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const T *getEntry(uint16_t Section, uint32_t Entry) const; 3134344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer template<typename T> 3144344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const; 315b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *getSymbol(DataRefImpl Symb) const; 316b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *getSection(DataRefImpl index) const; 317b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *getSection(uint16_t index) const; 3180fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer const Elf_Rel *getRel(DataRefImpl Rel) const; 3190fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer const Elf_Rela *getRela(DataRefImpl Rela) const; 320b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const char *getString(uint16_t section, uint32_t offset) const; 321b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const char *getString(const Elf_Shdr *section, uint32_t offset) const; 3224344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer error_code getSymbolName(const Elf_Sym *Symb, StringRef &Res) const; 323b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 324b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerprotected: 32525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const; 32625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const; 327ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer virtual error_code getSymbolOffset(DataRefImpl Symb, uint64_t &Res) const; 32825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const; 32925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const; 33025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const; 33125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const; 332ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const; 333ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::SymbolType &Res) const; 33425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer 33525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const; 33625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const; 33725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const; 33825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const; 33925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const; 34025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const; 34113afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const; 34213afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const; 34307ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb, 34407ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer bool &Result) const; 3454344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const; 3464344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const; 347b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 3480fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer virtual error_code getRelocationNext(DataRefImpl Rel, 3490fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer RelocationRef &Res) const; 3500fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer virtual error_code getRelocationAddress(DataRefImpl Rel, 3510fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint64_t &Res) const; 3520fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer virtual error_code getRelocationSymbol(DataRefImpl Rel, 3530fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer SymbolRef &Res) const; 3540fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer virtual error_code getRelocationType(DataRefImpl Rel, 3550fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint32_t &Res) const; 3564344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer virtual error_code getRelocationTypeName(DataRefImpl Rel, 3574344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer SmallVectorImpl<char> &Result) const; 3580fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel, 3590fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer int64_t &Res) const; 3604344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer virtual error_code getRelocationValueString(DataRefImpl Rel, 3614344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer SmallVectorImpl<char> &Result) const; 3620fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 363b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerpublic: 364001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer ELFObjectFile(MemoryBuffer *Object, error_code &ec); 365b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual symbol_iterator begin_symbols() const; 366b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual symbol_iterator end_symbols() const; 367b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual section_iterator begin_sections() const; 368b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual section_iterator end_sections() const; 369b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 370b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual uint8_t getBytesInAddress() const; 371b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual StringRef getFileFormatName() const; 372b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer virtual unsigned getArch() const; 373b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer}; 374b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} // end namespace 375b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 376b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 377b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencervoid ELFObjectFile<target_endianness, is64Bits> 378b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ::validateSymbol(DataRefImpl Symb) const { 379b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *symb = getSymbol(Symb); 3807acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b]; 381b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: We really need to do proper error handling in the case of an invalid 382b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // input file. Because we don't use exceptions, I think we'll just pass 383b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // an error object around. 384b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (!( symb 385b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer && SymbolTableSection 386001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer && symb >= (const Elf_Sym*)(base() 387b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer + SymbolTableSection->sh_offset) 388001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer && symb < (const Elf_Sym*)(base() 389b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer + SymbolTableSection->sh_offset 390b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer + SymbolTableSection->sh_size))) 391b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 392b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Symb must point to a valid symbol!"); 393b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 394b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 395b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 39625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 39725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSymbolNext(DataRefImpl Symb, 39825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer SymbolRef &Result) const { 399b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer validateSymbol(Symb); 4007acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b]; 401b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 4027acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer ++Symb.d.a; 403b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Check to see if we are at the end of this symbol table. 4047acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer if (Symb.d.a >= SymbolTableSection->getEntityCount()) { 405b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // We are at the end. If there are other symbol tables, jump to them. 4067acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer ++Symb.d.b; 4077acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer Symb.d.a = 1; // The 0th symbol in ELF is fake. 408b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Otherwise return the terminator. 4097acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer if (Symb.d.b >= SymbolTableSections.size()) { 4107acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer Symb.d.a = std::numeric_limits<uint32_t>::max(); 4117acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer Symb.d.b = std::numeric_limits<uint32_t>::max(); 412b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 413b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 414b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 41525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = SymbolRef(Symb, this); 41625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 417b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 418b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 419b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 42025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 42125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSymbolName(DataRefImpl Symb, 42225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer StringRef &Result) const { 423b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer validateSymbol(Symb); 424b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *symb = getSymbol(Symb); 4254344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return getSymbolName(symb, Result); 426b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 427b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 428b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 42925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 430ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer ::getSymbolOffset(DataRefImpl Symb, 43125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer uint64_t &Result) const { 432b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer validateSymbol(Symb); 433b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *symb = getSymbol(Symb); 434b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *Section; 435b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch (symb->st_shndx) { 436b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHN_COMMON: 437b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Undefined symbols have no address yet. 43825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer case ELF::SHN_UNDEF: 43925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = UnknownAddressOrSize; 44025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 44125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer case ELF::SHN_ABS: 44225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = symb->st_value; 44325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 444b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer default: Section = getSection(symb->st_shndx); 445b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 446b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 447b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch (symb->getType()) { 44825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer case ELF::STT_SECTION: 44925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = Section ? Section->sh_addr : UnknownAddressOrSize; 45025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 451b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::STT_FUNC: 452b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::STT_OBJECT: 453b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::STT_NOTYPE: 45425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = symb->st_value; 45525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 45625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer default: 45725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = UnknownAddressOrSize; 45825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 459b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 460b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 461b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 462b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 46325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 464ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer ::getSymbolAddress(DataRefImpl Symb, 465ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer uint64_t &Result) const { 466ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer validateSymbol(Symb); 467ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer const Elf_Sym *symb = getSymbol(Symb); 468ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer const Elf_Shdr *Section; 469ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer switch (symb->st_shndx) { 470ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::SHN_COMMON: // Fall through. 471ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer // Undefined symbols have no address yet. 472ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::SHN_UNDEF: 473ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = UnknownAddressOrSize; 474ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 475ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::SHN_ABS: 476ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = reinterpret_cast<uintptr_t>(base()+symb->st_value); 477ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 478ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer default: Section = getSection(symb->st_shndx); 479ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer } 480ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer const uint8_t* addr = base(); 481ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer if (Section) 482ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer addr += Section->sh_offset; 483ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer switch (symb->getType()) { 484ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::STT_SECTION: 485ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = reinterpret_cast<uintptr_t>(addr); 486ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 487ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::STT_FUNC: // Fall through. 488ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::STT_OBJECT: // Fall through. 489ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::STT_NOTYPE: 490ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer addr += symb->st_value; 491ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = reinterpret_cast<uintptr_t>(addr); 492ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 493ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer default: 494ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = UnknownAddressOrSize; 495ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 496ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer } 497ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer} 498ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer 499ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 500ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 50125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSymbolSize(DataRefImpl Symb, 50225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer uint64_t &Result) const { 503b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer validateSymbol(Symb); 504b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *symb = getSymbol(Symb); 505b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (symb->st_size == 0) 50625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = UnknownAddressOrSize; 50725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = symb->st_size; 50825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 509b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 510b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 511b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 51225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 51325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSymbolNMTypeChar(DataRefImpl Symb, 51425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer char &Result) const { 515b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer validateSymbol(Symb); 516b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *symb = getSymbol(Symb); 517b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *Section = getSection(symb->st_shndx); 518b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 519b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer char ret = '?'; 520b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 521b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (Section) { 522b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch (Section->sh_type) { 523b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHT_PROGBITS: 524b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHT_DYNAMIC: 525b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch (Section->sh_flags) { 526b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR): 527b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 't'; break; 528b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case (ELF::SHF_ALLOC | ELF::SHF_WRITE): 529b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 'd'; break; 530b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHF_ALLOC: 531b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case (ELF::SHF_ALLOC | ELF::SHF_MERGE): 532b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS): 533b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 'r'; break; 534b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 535b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer break; 536b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHT_NOBITS: ret = 'b'; 537b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 538b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 539b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 540b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch (symb->st_shndx) { 541b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHN_UNDEF: 542b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (ret == '?') 543b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 'U'; 544b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer break; 545b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHN_ABS: ret = 'a'; break; 546b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::SHN_COMMON: ret = 'c'; break; 547b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 548b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 549b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch (symb->getBinding()) { 550b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::STB_GLOBAL: ret = ::toupper(ret); break; 551b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::STB_WEAK: 552b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (symb->st_shndx == ELF::SHN_UNDEF) 553b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 'w'; 554b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer else 555b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (symb->getType() == ELF::STT_OBJECT) 556b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 'V'; 557b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer else 558b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ret = 'W'; 559b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 560b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 56125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (ret == '?' && symb->getType() == ELF::STT_SECTION) { 56225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer StringRef name; 56325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer if (error_code ec = getSymbolName(Symb, name)) 56425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return ec; 56525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = StringSwitch<char>(name) 566b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer .StartsWith(".debug", 'N') 5670fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer .StartsWith(".note", 'n') 5680fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer .Default('?'); 56925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 57025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer } 571b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 57225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = ret; 57325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 574b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 575b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 576b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 57725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 578ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer ::getSymbolType(DataRefImpl Symb, 579ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer SymbolRef::SymbolType &Result) const { 580ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer validateSymbol(Symb); 581ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer const Elf_Sym *symb = getSymbol(Symb); 582ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer 583ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer if (symb->st_shndx == ELF::SHN_UNDEF) { 584ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = SymbolRef::ST_External; 585ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 586ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer } 587ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer 588ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer switch (symb->getType()) { 589ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::STT_FUNC: 590ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = SymbolRef::ST_Function; 591ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer break; 592ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer case ELF::STT_OBJECT: 593ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = SymbolRef::ST_Data; 594ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer break; 595ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer default: 596ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = SymbolRef::ST_Other; 597ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer break; 598ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer } 599ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 600ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer} 601ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer 602ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 603ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 604ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer ::isSymbolGlobal(DataRefImpl Symb, 605ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer bool &Result) const { 606ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer validateSymbol(Symb); 607ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer const Elf_Sym *symb = getSymbol(Symb); 608ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer 609ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer Result = symb->getBinding() == ELF::STB_GLOBAL; 610ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer return object_error::success; 611ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer} 612ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramer 613ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 614ac241fe9f0d73c6f632e4f7f89e06b698d39da54Benjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 61525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::isSymbolInternal(DataRefImpl Symb, 61625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer bool &Result) const { 617b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer validateSymbol(Symb); 618b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Sym *symb = getSymbol(Symb); 619b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 620b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if ( symb->getType() == ELF::STT_FILE 621b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer || symb->getType() == ELF::STT_SECTION) 62225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = true; 62325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = false; 62425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 625b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 626b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 627b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 62825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 62925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSectionNext(DataRefImpl Sec, SectionRef &Result) const { 6307acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p); 631b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer sec += Header->e_shentsize; 6327acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer Sec.p = reinterpret_cast<intptr_t>(sec); 63325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = SectionRef(Sec, this); 63425b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 635b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 636b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 637b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 63825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 63925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSectionName(DataRefImpl Sec, 64025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer StringRef &Result) const { 6417acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 64225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name)); 64325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 644b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 645b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 646b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 64725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 64825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSectionAddress(DataRefImpl Sec, 64925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer uint64_t &Result) const { 6507acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 65125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = sec->sh_addr; 65225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 653b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 654b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 655b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 65625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 65725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSectionSize(DataRefImpl Sec, 65825b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer uint64_t &Result) const { 6597acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 66025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = sec->sh_size; 66125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 662b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 663b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 664b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 66525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 66625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::getSectionContents(DataRefImpl Sec, 66725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer StringRef &Result) const { 6687acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 66925b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer const char *start = (const char*)base() + sec->sh_offset; 67025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = StringRef(start, sec->sh_size); 67125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 672b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 673b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 674b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 67525b15777df42d5d608810f6881b6c98107481d69Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 67625b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer ::isSectionText(DataRefImpl Sec, 67725b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer bool &Result) const { 6787acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 679b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (sec->sh_flags & ELF::SHF_EXECINSTR) 68025b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = true; 68125b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer else 68225b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer Result = false; 68325b15777df42d5d608810f6881b6c98107481d69Michael J. Spencer return object_error::success; 684b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 685b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 68613afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 68713afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 68813afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer ::isSectionData(DataRefImpl Sec, 68913afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer bool &Result) const { 69013afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 69113afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) 69213afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer && sec->sh_type == ELF::SHT_PROGBITS) 69313afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer Result = true; 69413afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer else 69513afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer Result = false; 69613afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer return object_error::success; 69713afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer} 69813afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer 69913afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 70013afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 70113afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer ::isSectionBSS(DataRefImpl Sec, 70213afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer bool &Result) const { 70313afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 70413afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) 70513afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer && sec->sh_type == ELF::SHT_NOBITS) 70613afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer Result = true; 70713afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer else 70813afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer Result = false; 70913afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer return object_error::success; 71013afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer} 71113afc5eff2d7370ab486d5039886ab8bbf9039daMichael J. Spencer 712b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 71307ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 71407ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer ::sectionContainsSymbol(DataRefImpl Sec, 71507ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer DataRefImpl Symb, 71607ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer bool &Result) const { 71707ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer // FIXME: Unimplemented. 71807ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer Result = false; 71907ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer return object_error::success; 72007ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer} 72107ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramer 7224344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 7234344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencerrelocation_iterator ELFObjectFile<target_endianness, is64Bits> 7244344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::getSectionRelBegin(DataRefImpl Sec) const { 7254344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer DataRefImpl RelData; 7264344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer memset(&RelData, 0, sizeof(RelData)); 7274344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 7284344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec); 7294344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (sec != 0 && ittr != SectionRelocMap.end()) { 7304344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelData.w.a = getSection(ittr->second[0])->sh_link; 7314344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelData.w.b = ittr->second[0]; 7324344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelData.w.c = 0; 7334344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 7344344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return relocation_iterator(RelocationRef(RelData, this)); 7354344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer} 7364344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 7374344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 7384344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencerrelocation_iterator ELFObjectFile<target_endianness, is64Bits> 7394344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::getSectionRelEnd(DataRefImpl Sec) const { 7404344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer DataRefImpl RelData; 7414344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer memset(&RelData, 0, sizeof(RelData)); 7424344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p); 7434344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec); 7444344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (sec != 0 && ittr != SectionRelocMap.end()) { 7454344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // Get the index of the last relocation section for this section. 7464344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer std::size_t relocsecindex = ittr->second[ittr->second.size() - 1]; 7474344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *relocsec = getSection(relocsecindex); 7484344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelData.w.a = relocsec->sh_link; 7494344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelData.w.b = relocsecindex; 7504344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer RelData.w.c = relocsec->sh_size / relocsec->sh_entsize; 7514344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 7524344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return relocation_iterator(RelocationRef(RelData, this)); 7534344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer} 7544344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 7550fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer// Relocations 7560fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 7570fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 7580fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer ::getRelocationNext(DataRefImpl Rel, 7590fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer RelocationRef &Result) const { 7604344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ++Rel.w.c; 7614344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *relocsec = getSection(Rel.w.b); 7624344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) { 7634344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // We have reached the end of the relocations for this section. See if there 7644344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // is another relocation section. 7654344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer typename RelocMap_t::mapped_type &relocseclist = 7664344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer SectionRelocMap.lookup(getSection(Rel.w.a)); 7674344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 7684344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // Do a binary search for the current reloc section index (which must be 7694344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // present). Then get the next one. 7704344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer typename RelocMap_t::mapped_type::const_iterator loc = 7714344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b); 7724344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ++loc; 7734344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 7744344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel 7754344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // to the end iterator. 7764344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (loc != relocseclist.end()) { 7774344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Rel.w.b = *loc; 7784344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Rel.w.a = 0; 7790fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 7800fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 7810fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Result = RelocationRef(Rel, this); 7820fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return object_error::success; 7830fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 7840fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 7850fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 7860fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 7870fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer ::getRelocationSymbol(DataRefImpl Rel, 7880fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer SymbolRef &Result) const { 7890fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint32_t symbolIdx; 7904344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = getSection(Rel.w.b); 7910fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer switch (sec->sh_type) { 7920fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer default : 7930fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer report_fatal_error("Invalid section type in Rel!"); 7940fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_REL : { 7950fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer symbolIdx = getRel(Rel)->getSymbol(); 7960fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer break; 7970fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 7980fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_RELA : { 7990fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer symbolIdx = getRela(Rel)->getSymbol(); 8000fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer break; 8010fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8020fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8030fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer DataRefImpl SymbolData; 8040fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link); 8050fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer if (it == SymbolTableSectionsIndexMap.end()) 8060fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer report_fatal_error("Relocation symbol table not found!"); 8070fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer SymbolData.d.a = symbolIdx; 8080fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer SymbolData.d.b = it->second; 8090fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Result = SymbolRef(SymbolData, this); 8100fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return object_error::success; 8110fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 8120fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 8130fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 8140fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 8150fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer ::getRelocationAddress(DataRefImpl Rel, 8160fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint64_t &Result) const { 8170fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint64_t offset; 8184344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = getSection(Rel.w.b); 8190fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer switch (sec->sh_type) { 8200fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer default : 8210fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer report_fatal_error("Invalid section type in Rel!"); 8220fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_REL : { 8230fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer offset = getRel(Rel)->r_offset; 8240fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer break; 8250fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8260fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_RELA : { 8270fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer offset = getRela(Rel)->r_offset; 8280fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer break; 8290fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8300fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8310fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 8324344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result = offset; 8330fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return object_error::success; 8340fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 8350fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 8360fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 8370fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 8380fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer ::getRelocationType(DataRefImpl Rel, 8390fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer uint32_t &Result) const { 8404344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = getSection(Rel.w.b); 8410fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer switch (sec->sh_type) { 8420fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer default : 8430fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer report_fatal_error("Invalid section type in Rel!"); 8440fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_REL : { 8450fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Result = getRel(Rel)->getType(); 8460fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer break; 8470fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8480fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_RELA : { 8490fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Result = getRela(Rel)->getType(); 8500fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer break; 8510fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8520fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 8530fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return object_error::success; 8540fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 8550fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 8564344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer#define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \ 8574344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::enum: res = #enum; break; 8584344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 8594344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 8604344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 8614344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::getRelocationTypeName(DataRefImpl Rel, 8624344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer SmallVectorImpl<char> &Result) const { 8634344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = getSection(Rel.w.b); 8644344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer uint8_t type; 8654344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer StringRef res; 8664344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (sec->sh_type) { 8674344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default : 8684344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return object_error::parse_failed; 8694344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::SHT_REL : { 8704344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer type = getRel(Rel)->getType(); 8714344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 8724344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 8734344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::SHT_RELA : { 8744344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer type = getRela(Rel)->getType(); 8754344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 8764344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 8774344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 8784344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (Header->e_machine) { 8794344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::EM_X86_64: 8804344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (type) { 8814344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE); 8824344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64); 8834344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32); 8844344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32); 8854344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32); 8864344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY); 8874344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT); 8884344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT); 8894344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE); 8904344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL); 8914344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32); 8924344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S); 8934344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16); 8944344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16); 8954344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8); 8964344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8); 8974344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64); 8984344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64); 8994344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64); 9004344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD); 9014344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD); 9024344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32); 9034344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF); 9044344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32); 9054344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64); 9064344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64); 9074344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32); 9084344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32); 9094344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64); 9104344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC); 9114344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL); 9124344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC); 9134344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default: 9144344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer res = "Unknown"; 9154344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 9164344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 9174344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::EM_386: 9184344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (type) { 9194344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE); 9204344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32); 9214344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32); 9224344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32); 9234344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32); 9244344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY); 9254344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT); 9264344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT); 9274344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE); 9284344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF); 9294344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC); 9304344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT); 9314344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF); 9324344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE); 9334344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE); 9344344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE); 9354344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD); 9364344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM); 9374344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16); 9384344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16); 9394344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8); 9404344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8); 9414344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32); 9424344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH); 9434344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL); 9444344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP); 9454344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32); 9464344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH); 9474344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL); 9484344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP); 9494344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32); 9504344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32); 9514344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32); 9524344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32); 9534344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32); 9544344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32); 9554344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC); 9564344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL); 9574344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC); 9584344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE); 9594344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default: 9604344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer res = "Unknown"; 9614344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 9624344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 9634344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default: 9644344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer res = "Unknown"; 9654344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 9664344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result.append(res.begin(), res.end()); 9674344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return object_error::success; 9684344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer} 9694344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 9704344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer#undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME 9714344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 9720fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 9730fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramererror_code ELFObjectFile<target_endianness, is64Bits> 9740fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer ::getRelocationAdditionalInfo(DataRefImpl Rel, 9750fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer int64_t &Result) const { 9764344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = getSection(Rel.w.b); 9770fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer switch (sec->sh_type) { 9780fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer default : 9790fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer report_fatal_error("Invalid section type in Rel!"); 9800fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_REL : { 9810fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Result = 0; 9820fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return object_error::success; 9830fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 9840fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::SHT_RELA : { 9850fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer Result = getRela(Rel)->r_addend; 9860fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return object_error::success; 9870fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 9880fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 9890fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 9900fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 9914344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 9924344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 9934344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::getRelocationValueString(DataRefImpl Rel, 9944344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer SmallVectorImpl<char> &Result) const { 9954344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *sec = getSection(Rel.w.b); 9964344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer uint8_t type; 9974344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer StringRef res; 9984344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer int64_t addend = 0; 9994344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer uint16_t symbol_index = 0; 10004344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (sec->sh_type) { 10014344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default : 10024344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return object_error::parse_failed; 10034344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::SHT_REL : { 10044344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer type = getRel(Rel)->getType(); 10054344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer symbol_index = getRel(Rel)->getSymbol(); 10064344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // TODO: Read implicit addend from section data. 10074344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 10084344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10094344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::SHT_RELA : { 10104344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer type = getRela(Rel)->getType(); 10114344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer symbol_index = getRela(Rel)->getSymbol(); 10124344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer addend = getRela(Rel)->r_addend; 10134344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 10144344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10154344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10164344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index); 10174344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer StringRef symname; 10184344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (error_code ec = getSymbolName(symb, symname)) 10194344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return ec; 10204344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (Header->e_machine) { 10214344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::EM_X86_64: 10224344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer switch (type) { 10234344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::R_X86_64_32S: 10244344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer res = symname; 10254344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 10264344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer case ELF::R_X86_64_PC32: { 10274344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer std::string fmtbuf; 10284344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer raw_string_ostream fmt(fmtbuf); 10294344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer fmt << symname << (addend < 0 ? "" : "+") << addend << "-P"; 10304344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer fmt.flush(); 10314344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result.append(fmtbuf.begin(), fmtbuf.end()); 10324344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10334344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 10344344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default: 10354344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer res = "Unknown"; 10364344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10374344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer break; 10384344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer default: 10394344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer res = "Unknown"; 10404344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10414344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (Result.empty()) 10424344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result.append(res.begin(), res.end()); 10434344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return object_error::success; 10444344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer} 10450fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 104607ea23aa2d17f701fa125442c20c1eba75b55fdbBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 1047001c9205fca2220480589ec355cb6ec701a37e08Michael J. SpencerELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object 1048001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer , error_code &ec) 1049001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer : ObjectFile(Binary::isELF, Object, ec) 1050b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer , SectionHeaderTable(0) 1051b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer , dot_shstrtab_sec(0) 1052b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer , dot_strtab_sec(0) { 1053001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer Header = reinterpret_cast<const Elf_Ehdr *>(base()); 1054b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1055b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (Header->e_shoff == 0) 1056b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return; 1057b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1058b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer SectionHeaderTable = 1059001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer reinterpret_cast<const Elf_Shdr *>(base() + Header->e_shoff); 1060b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer uint32_t SectionTableSize = Header->e_shnum * Header->e_shentsize; 1061b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (!( (const uint8_t *)SectionHeaderTable + SectionTableSize 1062001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer <= base() + Data->getBufferSize())) 1063b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1064b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Section table goes past end of file!"); 1065b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1066b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1067b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // To find the symbol tables we walk the section table to find SHT_STMTAB. 10684344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr* sh = reinterpret_cast<const Elf_Shdr*>(SectionHeaderTable); 10690fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer for (unsigned i = 0; i < Header->e_shnum; ++i) { 1070b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (sh->sh_type == ELF::SHT_SYMTAB) { 10710fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer SymbolTableSectionsIndexMap[i] = SymbolTableSections.size(); 1072b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer SymbolTableSections.push_back(sh); 1073b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 10740fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer if (sh->sh_type == ELF::SHT_REL || sh->sh_type == ELF::SHT_RELA) { 10754344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer SectionRelocMap[getSection(sh->sh_link)].push_back(i); 10760fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer } 10770fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer ++sh; 1078b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1079b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 10804344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // Sort section relocation lists by index. 10814344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer for (typename RelocMap_t::iterator i = SectionRelocMap.begin(), 10824344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer e = SectionRelocMap.end(); i != e; ++i) { 10834344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer std::sort(i->second.begin(), i->second.end()); 10844344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 10854344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 1086b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Get string table sections. 1087b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer dot_shstrtab_sec = getSection(Header->e_shstrndx); 1088b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (dot_shstrtab_sec) { 1089b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Verify that the last byte in the string table in a null. 1090001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer if (((const char*)base() + dot_shstrtab_sec->sh_offset) 1091b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer [dot_shstrtab_sec->sh_size - 1] != 0) 1092b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1093b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("String table must end with a null terminator!"); 1094b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1095b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1096b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // Merge this into the above loop. 1097b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable), 1098b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer *e = i + Header->e_shnum * Header->e_shentsize; 1099b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer i != e; i += Header->e_shentsize) { 1100b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i); 1101b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (sh->sh_type == ELF::SHT_STRTAB) { 1102b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name)); 1103b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (SectionName == ".strtab") { 1104b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (dot_strtab_sec != 0) 1105b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1106b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Already found section named .strtab!"); 1107b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer dot_strtab_sec = sh; 1108001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer const char *dot_strtab = (const char*)base() + sh->sh_offset; 1109b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (dot_strtab[sh->sh_size - 1] != 0) 1110b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1111b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("String table must end with a null terminator!"); 1112b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1113b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1114b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1115b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1116b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1117b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 11184344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencersymbol_iterator ELFObjectFile<target_endianness, is64Bits> 11194344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::begin_symbols() const { 11207acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer DataRefImpl SymbolData; 1121b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer memset(&SymbolData, 0, sizeof(SymbolData)); 1122b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (SymbolTableSections.size() == 0) { 11237acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer SymbolData.d.a = std::numeric_limits<uint32_t>::max(); 11247acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer SymbolData.d.b = std::numeric_limits<uint32_t>::max(); 1125b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } else { 11267acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer SymbolData.d.a = 1; // The 0th symbol in ELF is fake. 11277acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer SymbolData.d.b = 0; 1128b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 11297acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer return symbol_iterator(SymbolRef(SymbolData, this)); 1130b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1131b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1132b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 11334344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencersymbol_iterator ELFObjectFile<target_endianness, is64Bits> 11344344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::end_symbols() const { 11357acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer DataRefImpl SymbolData; 1136b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer memset(&SymbolData, 0, sizeof(SymbolData)); 11377acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer SymbolData.d.a = std::numeric_limits<uint32_t>::max(); 11387acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer SymbolData.d.b = std::numeric_limits<uint32_t>::max(); 11397acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer return symbol_iterator(SymbolRef(SymbolData, this)); 1140b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1141b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1142b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 11434344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencersection_iterator ELFObjectFile<target_endianness, is64Bits> 11444344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::begin_sections() const { 11457acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer DataRefImpl ret; 1146539d8d8a72995d08afe7b986fe98a1dc7fec4b0aEric Christopher memset(&ret, 0, sizeof(DataRefImpl)); 1147001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff); 11487acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer return section_iterator(SectionRef(ret, this)); 1149b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1150b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1151b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 11524344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencersection_iterator ELFObjectFile<target_endianness, is64Bits> 11534344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::end_sections() const { 11547acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer DataRefImpl ret; 1155539d8d8a72995d08afe7b986fe98a1dc7fec4b0aEric Christopher memset(&ret, 0, sizeof(DataRefImpl)); 1156001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer ret.p = reinterpret_cast<intptr_t>(base() 11577acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer + Header->e_shoff 11587acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer + (Header->e_shentsize * Header->e_shnum)); 11597acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer return section_iterator(SectionRef(ret, this)); 1160b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1161b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1162b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1163b84551a14f1c96942eb82408652e633543b0961eMichael J. Spenceruint8_t ELFObjectFile<target_endianness, is64Bits>::getBytesInAddress() const { 11647acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer return is64Bits ? 8 : 4; 1165b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1166b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1167b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1168b84551a14f1c96942eb82408652e633543b0961eMichael J. SpencerStringRef ELFObjectFile<target_endianness, is64Bits> 1169b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ::getFileFormatName() const { 1170b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch(Header->e_ident[ELF::EI_CLASS]) { 1171b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::ELFCLASS32: 1172b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch(Header->e_machine) { 1173b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::EM_386: 1174b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return "ELF32-i386"; 1175b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::EM_X86_64: 1176b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return "ELF32-x86-64"; 11770fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::EM_ARM: 11780fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return "ELF32-arm"; 1179b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer default: 1180b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return "ELF32-unknown"; 1181b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1182b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::ELFCLASS64: 1183b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch(Header->e_machine) { 1184b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::EM_386: 1185b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return "ELF64-i386"; 1186b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::EM_X86_64: 1187b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return "ELF64-x86-64"; 1188b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer default: 1189b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return "ELF64-unknown"; 1190b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1191b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer default: 1192b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1193b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Invalid ELFCLASS!"); 1194b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1195b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1196b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1197b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1198b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerunsigned ELFObjectFile<target_endianness, is64Bits>::getArch() const { 1199b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer switch(Header->e_machine) { 1200b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::EM_386: 1201b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return Triple::x86; 1202b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer case ELF::EM_X86_64: 1203b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return Triple::x86_64; 12040fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer case ELF::EM_ARM: 12050fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return Triple::arm; 1206b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer default: 1207b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return Triple::UnknownArch; 1208b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1209b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1210b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 12114344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 1212b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 12130fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<typename T> 12140fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerinline const T * 12154344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. SpencerELFObjectFile<target_endianness, is64Bits>::getEntry(uint16_t Section, 12164344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer uint32_t Entry) const { 12174344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return getEntry<T>(getSection(Section), Entry); 12184344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer} 12194344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 12204344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 12214344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<typename T> 12224344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencerinline const T * 12234344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. SpencerELFObjectFile<target_endianness, is64Bits>::getEntry(const Elf_Shdr * Section, 12244344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer uint32_t Entry) const { 12250fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer return reinterpret_cast<const T *>( 1226001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer base() 12274344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer + Section->sh_offset 12284344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer + (Entry * Section->sh_entsize)); 12290fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 12300fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 12310fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 12320fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerconst typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym * 12330fcab076f0358890e2f1b213f4303c780e05d99dBenjamin KramerELFObjectFile<target_endianness, is64Bits>::getSymbol(DataRefImpl Symb) const { 12344344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a); 12350fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 12360fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 12370fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 12380fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerconst typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rel * 12390fcab076f0358890e2f1b213f4303c780e05d99dBenjamin KramerELFObjectFile<target_endianness, is64Bits>::getRel(DataRefImpl Rel) const { 12404344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c); 12410fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer} 12420fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramer 12430fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramertemplate<support::endianness target_endianness, bool is64Bits> 12440fcab076f0358890e2f1b213f4303c780e05d99dBenjamin Kramerconst typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rela * 12450fcab076f0358890e2f1b213f4303c780e05d99dBenjamin KramerELFObjectFile<target_endianness, is64Bits>::getRela(DataRefImpl Rela) const { 12464344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c); 1247b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1248b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1249b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1250b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerconst typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr * 1251b84551a14f1c96942eb82408652e633543b0961eMichael J. SpencerELFObjectFile<target_endianness, is64Bits>::getSection(DataRefImpl Symb) const { 12527acdb4d237181976b04e72f6a6c329c3b2604440Michael J. Spencer const Elf_Shdr *sec = getSection(Symb.d.b); 12534344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM) 1254b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1255b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Invalid symbol table section!"); 1256b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return sec; 1257b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1258b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1259b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1260b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerconst typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr * 1261b84551a14f1c96942eb82408652e633543b0961eMichael J. SpencerELFObjectFile<target_endianness, is64Bits>::getSection(uint16_t index) const { 1262b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (index == 0 || index >= ELF::SHN_LORESERVE) 1263b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return 0; 1264b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (!SectionHeaderTable || index >= Header->e_shnum) 1265b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1266b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Invalid section index!"); 1267b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1268b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return reinterpret_cast<const Elf_Shdr *>( 1269b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer reinterpret_cast<const char *>(SectionHeaderTable) 1270b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer + (index * Header->e_shentsize)); 1271b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1272b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1273b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1274b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerconst char *ELFObjectFile<target_endianness, is64Bits> 1275b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ::getString(uint16_t section, 1276b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELF::Elf32_Word offset) const { 1277b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return getString(getSection(section), offset); 1278b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1279b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1280b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 1281b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerconst char *ELFObjectFile<target_endianness, is64Bits> 1282b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ::getString(const Elf_Shdr *section, 1283b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ELF::Elf32_Word offset) const { 1284b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!"); 1285b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (offset >= section->sh_size) 1286b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1287001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer report_fatal_error("Symbol name offset outside of string table!"); 1288001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer return (const char *)base() + section->sh_offset + offset; 1289b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1290b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 12914344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencertemplate<support::endianness target_endianness, bool is64Bits> 12924344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencererror_code ELFObjectFile<target_endianness, is64Bits> 12934344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer ::getSymbolName(const Elf_Sym *symb, 12944344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer StringRef &Result) const { 12954344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (symb->st_name == 0) { 12964344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer const Elf_Shdr *section = getSection(symb->st_shndx); 12974344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer if (!section) 12984344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result = ""; 12994344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer else 13004344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result = getString(dot_shstrtab_sec, section->sh_name); 13014344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return object_error::success; 13024344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer } 13034344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 13044344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer // Use the default symbol table name section. 13054344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer Result = getString(dot_strtab_sec, symb->st_name); 13064344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer return object_error::success; 13074344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer} 13084344b1ef9b3721a5ebc2e024f753772a1e4ddd92Michael J. Spencer 1309b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer// EI_CLASS, EI_DATA. 1310b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencerstatic std::pair<unsigned char, unsigned char> 1311b84551a14f1c96942eb82408652e633543b0961eMichael J. SpencergetElfArchType(MemoryBuffer *Object) { 1312b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (Object->getBufferSize() < ELF::EI_NIDENT) 1313b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE); 1314b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer return std::make_pair( (uint8_t)Object->getBufferStart()[ELF::EI_CLASS] 1315b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer , (uint8_t)Object->getBufferStart()[ELF::EI_DATA]); 1316b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} 1317b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1318b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencernamespace llvm { 1319b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1320b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer ObjectFile *ObjectFile::createELFObjectFile(MemoryBuffer *Object) { 1321b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer std::pair<unsigned char, unsigned char> Ident = getElfArchType(Object); 1322001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer error_code ec; 1323b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2LSB) 1324001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer return new ELFObjectFile<support::little, false>(Object, ec); 1325b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer else if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2MSB) 1326001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer return new ELFObjectFile<support::big, false>(Object, ec); 1327b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2LSB) 1328001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer return new ELFObjectFile<support::little, true>(Object, ec); 1329b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2MSB) 1330001c9205fca2220480589ec355cb6ec701a37e08Michael J. Spencer return new ELFObjectFile<support::big, true>(Object, ec); 1331b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer // FIXME: Proper error handling. 1332b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer report_fatal_error("Not an ELF object file!"); 1333b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer } 1334b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer 1335b84551a14f1c96942eb82408652e633543b0961eMichael J. Spencer} // end namespace llvm 1336