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// Copyright (c) 2019 coolxv
//
// Distributed under the MIT Software License
// See accompanying file LICENSE.txt or copy at
// https://opensource.org/licenses/MIT
/*** Start of inlined file: elfio_dump.hpp ***/
#ifndef ELFIO_DUMP_HPP
#define ELFIO_DUMP_HPP
#include <algorithm>
#include <string>
#include <ostream>
#include <sstream>
#include <iomanip>
/*** Start of inlined file: elfio.hpp ***/
#ifndef ELFIO_HPP
#define ELFIO_HPP
#ifdef _MSC_VER
#pragma warning( push )
#pragma warning( disable : 4996 )
#pragma warning( disable : 4355 )
#pragma warning( disable : 4244 )
#endif
#include <string>
#include <iostream>
#include <fstream>
#include <functional>
#include <algorithm>
#include <vector>
#include <deque>
#include <iterator>
/*** Start of inlined file: elf_types.hpp ***/
#ifndef ELFTYPES_H
#define ELFTYPES_H
#ifndef ELFIO_NO_OWN_TYPES
#if !defined( ELFIO_NO_CSTDINT ) && !defined( ELFIO_NO_INTTYPES )
#include <stdint.h>
#else
typedef unsigned char uint8_t;
typedef signed char int8_t;
typedef unsigned short uint16_t;
typedef signed short int16_t;
#ifdef _MSC_VER
typedef unsigned __int32 uint32_t;
typedef signed __int32 int32_t;
typedef unsigned __int64 uint64_t;
typedef signed __int64 int64_t;
#else
typedef unsigned int uint32_t;
typedef signed int int32_t;
typedef unsigned long long uint64_t;
typedef signed long long int64_t;
#endif // _MSC_VER
#endif // ELFIO_NO_CSTDINT
#endif // ELFIO_NO_OWN_TYPES
namespace ELFIO {
// Attention! Platform depended definitions.
typedef uint16_t Elf_Half;
typedef uint32_t Elf_Word;
typedef int32_t Elf_Sword;
typedef uint64_t Elf_Xword;
typedef int64_t Elf_Sxword;
typedef uint32_t Elf32_Addr;
typedef uint32_t Elf32_Off;
typedef uint64_t Elf64_Addr;
typedef uint64_t Elf64_Off;
#define Elf32_Half Elf_Half
#define Elf64_Half Elf_Half
#define Elf32_Word Elf_Word
#define Elf64_Word Elf_Word
#define Elf32_Sword Elf_Sword
#define Elf64_Sword Elf_Sword
///////////////////////
// ELF Header Constants
// File type
#define ET_NONE 0
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
#define ET_LOOS 0xFE00
#define ET_HIOS 0xFEFF
#define ET_LOPROC 0xFF00
#define ET_HIPROC 0xFFFF
#define EM_NONE 0 // No machine
#define EM_M32 1 // AT&T WE 32100
#define EM_SPARC 2 // SUN SPARC
#define EM_386 3 // Intel 80386
#define EM_68K 4 // Motorola m68k family
#define EM_88K 5 // Motorola m88k family
#define EM_486 6 // Intel 80486// Reserved for future use
#define EM_860 7 // Intel 80860
#define EM_MIPS 8 // MIPS R3000 (officially, big-endian only)
#define EM_S370 9 // IBM System/370
#define EM_MIPS_RS3_LE \
10 // MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated
#define EM_res011 11 // Reserved
#define EM_res012 12 // Reserved
#define EM_res013 13 // Reserved
#define EM_res014 14 // Reserved
#define EM_PARISC 15 // HPPA
#define EM_res016 16 // Reserved
#define EM_VPP550 17 // Fujitsu VPP500
#define EM_SPARC32PLUS 18 // Sun's "v8plus"
#define EM_960 19 // Intel 80960
#define EM_PPC 20 // PowerPC
#define EM_PPC64 21 // 64-bit PowerPC
#define EM_S390 22 // IBM S/390
#define EM_SPU 23 // Sony/Toshiba/IBM SPU
#define EM_res024 24 // Reserved
#define EM_res025 25 // Reserved
#define EM_res026 26 // Reserved
#define EM_res027 27 // Reserved
#define EM_res028 28 // Reserved
#define EM_res029 29 // Reserved
#define EM_res030 30 // Reserved
#define EM_res031 31 // Reserved
#define EM_res032 32 // Reserved
#define EM_res033 33 // Reserved
#define EM_res034 34 // Reserved
#define EM_res035 35 // Reserved
#define EM_V800 36 // NEC V800 series
#define EM_FR20 37 // Fujitsu FR20
#define EM_RH32 38 // TRW RH32
#define EM_MCORE 39 // Motorola M*Core // May also be taken by Fujitsu MMA
#define EM_RCE 39 // Old name for MCore
#define EM_ARM 40 // ARM
#define EM_OLD_ALPHA 41 // Digital Alpha
#define EM_SH 42 // Renesas (formerly Hitachi) / SuperH SH
#define EM_SPARCV9 43 // SPARC v9 64-bit
#define EM_TRICORE 44 // Siemens Tricore embedded processor
#define EM_ARC 45 // ARC Cores
#define EM_H8_300 46 // Renesas (formerly Hitachi) H8/300
#define EM_H8_300H 47 // Renesas (formerly Hitachi) H8/300H
#define EM_H8S 48 // Renesas (formerly Hitachi) H8S
#define EM_H8_500 49 // Renesas (formerly Hitachi) H8/500
#define EM_IA_64 50 // Intel IA-64 Processor
#define EM_MIPS_X 51 // Stanford MIPS-X
#define EM_COLDFIRE 52 // Motorola Coldfire
#define EM_68HC12 53 // Motorola M68HC12
#define EM_MMA 54 // Fujitsu Multimedia Accelerator
#define EM_PCP 55 // Siemens PCP
#define EM_NCPU 56 // Sony nCPU embedded RISC processor
#define EM_NDR1 57 // Denso NDR1 microprocesspr
#define EM_STARCORE 58 // Motorola Star*Core processor
#define EM_ME16 59 // Toyota ME16 processor
#define EM_ST100 60 // STMicroelectronics ST100 processor
#define EM_TINYJ 61 // Advanced Logic Corp. TinyJ embedded processor
#define EM_X86_64 62 // Advanced Micro Devices X86-64 processor
#define EM_PDSP 63 // Sony DSP Processor
#define EM_PDP10 64 // Digital Equipment Corp. PDP-10
#define EM_PDP11 65 // Digital Equipment Corp. PDP-11
#define EM_FX66 66 // Siemens FX66 microcontroller
#define EM_ST9PLUS 67 // STMicroelectronics ST9+ 8/16 bit microcontroller
#define EM_ST7 68 // STMicroelectronics ST7 8-bit microcontroller
#define EM_68HC16 69 // Motorola MC68HC16 Microcontroller
#define EM_68HC11 70 // Motorola MC68HC11 Microcontroller
#define EM_68HC08 71 // Motorola MC68HC08 Microcontroller
#define EM_68HC05 72 // Motorola MC68HC05 Microcontroller
#define EM_SVX 73 // Silicon Graphics SVx
#define EM_ST19 74 // STMicroelectronics ST19 8-bit cpu
#define EM_VAX 75 // Digital VAX
#define EM_CRIS 76 // Axis Communications 32-bit embedded processor
#define EM_JAVELIN 77 // Infineon Technologies 32-bit embedded cpu
#define EM_FIREPATH 78 // Element 14 64-bit DSP processor
#define EM_ZSP 79 // LSI Logic's 16-bit DSP processor
#define EM_MMIX 80 // Donald Knuth's educational 64-bit processor
#define EM_HUANY 81 // Harvard's machine-independent format
#define EM_PRISM 82 // SiTera Prism
#define EM_AVR 83 // Atmel AVR 8-bit microcontroller
#define EM_FR30 84 // Fujitsu FR30
#define EM_D10V 85 // Mitsubishi D10V
#define EM_D30V 86 // Mitsubishi D30V
#define EM_V850 87 // NEC v850
#define EM_M32R 88 // Renesas M32R (formerly Mitsubishi M32R)
#define EM_MN10300 89 // Matsushita MN10300
#define EM_MN10200 90 // Matsushita MN10200
#define EM_PJ 91 // picoJava
#define EM_OPENRISC 92 // OpenRISC 32-bit embedded processor
#define EM_ARC_A5 93 // ARC Cores Tangent-A5
#define EM_XTENSA 94 // Tensilica Xtensa Architecture
#define EM_VIDEOCORE 95 // Alphamosaic VideoCore processor
#define EM_TMM_GPP 96 // Thompson Multimedia General Purpose Processor
#define EM_NS32K 97 // National Semiconductor 32000 series
#define EM_TPC 98 // Tenor Network TPC processor
#define EM_SNP1K 99 // Trebia SNP 1000 processor
#define EM_ST200 100 // STMicroelectronics ST200 microcontroller
#define EM_IP2K 101 // Ubicom IP2022 micro controller
#define EM_MAX 102 // MAX Processor
#define EM_CR 103 // National Semiconductor CompactRISC
#define EM_F2MC16 104 // Fujitsu F2MC16
#define EM_MSP430 105 // TI msp430 micro controller
#define EM_BLACKFIN 106 // ADI Blackfin
#define EM_SE_C33 107 // S1C33 Family of Seiko Epson processors
#define EM_SEP 108 // Sharp embedded microprocessor
#define EM_ARCA 109 // Arca RISC Microprocessor
#define EM_UNICORE \
110 // Microprocessor series from PKU-Unity Ltd. and MPRC of Peking University
#define EM_EXCESS 111 // eXcess: 16/32/64-bit configurable embedded CPU
#define EM_DXP 112 // Icera Semiconductor Inc. Deep Execution Processor
#define EM_ALTERA_NIOS2 113 // Altera Nios II soft-core processor
#define EM_CRX 114 // National Semiconductor CRX
#define EM_XGATE 115 // Motorola XGATE embedded processor
#define EM_C166 116 // Infineon C16x/XC16x processor
#define EM_M16C 117 // Renesas M16C series microprocessors
#define EM_DSPIC30F \
118 // Microchip Technology dsPIC30F Digital Signal Controller
#define EM_CE 119 // Freescale Communication Engine RISC core
#define EM_M32C 120 // Renesas M32C series microprocessors
#define EM_res121 121 // Reserved
#define EM_res122 122 // Reserved
#define EM_res123 123 // Reserved
#define EM_res124 124 // Reserved
#define EM_res125 125 // Reserved
#define EM_res126 126 // Reserved
#define EM_res127 127 // Reserved
#define EM_res128 128 // Reserved
#define EM_res129 129 // Reserved
#define EM_res130 130 // Reserved
#define EM_TSK3000 131 // Altium TSK3000 core
#define EM_RS08 132 // Freescale RS08 embedded processor
#define EM_res133 133 // Reserved
#define EM_ECOG2 134 // Cyan Technology eCOG2 microprocessor
#define EM_SCORE 135 // Sunplus Score
#define EM_SCORE7 135 // Sunplus S+core7 RISC processor
#define EM_DSP24 136 // New Japan Radio (NJR) 24-bit DSP Processor
#define EM_VIDEOCORE3 137 // Broadcom VideoCore III processor
#define EM_LATTICEMICO32 138 // RISC processor for Lattice FPGA architecture
#define EM_SE_C17 139 // Seiko Epson C17 family
#define EM_TI_C6000 140 // Texas Instruments TMS320C6000 DSP family
#define EM_TI_C2000 141 // Texas Instruments TMS320C2000 DSP family
#define EM_TI_C5500 142 // Texas Instruments TMS320C55x DSP family
#define EM_res143 143 // Reserved
#define EM_res144 144 // Reserved
#define EM_res145 145 // Reserved
#define EM_res146 146 // Reserved
#define EM_res147 147 // Reserved
#define EM_res148 148 // Reserved
#define EM_res149 149 // Reserved
#define EM_res150 150 // Reserved
#define EM_res151 151 // Reserved
#define EM_res152 152 // Reserved
#define EM_res153 153 // Reserved
#define EM_res154 154 // Reserved
#define EM_res155 155 // Reserved
#define EM_res156 156 // Reserved
#define EM_res157 157 // Reserved
#define EM_res158 158 // Reserved
#define EM_res159 159 // Reserved
#define EM_MMDSP_PLUS 160 // STMicroelectronics 64bit VLIW Data Signal Processor
#define EM_CYPRESS_M8C 161 // Cypress M8C microprocessor
#define EM_R32C 162 // Renesas R32C series microprocessors
#define EM_TRIMEDIA 163 // NXP Semiconductors TriMedia architecture family
#define EM_QDSP6 164 // QUALCOMM DSP6 Processor
#define EM_8051 165 // Intel 8051 and variants
#define EM_STXP7X 166 // STMicroelectronics STxP7x family
#define EM_NDS32 \
167 // Andes Technology compact code size embedded RISC processor family
#define EM_ECOG1 168 // Cyan Technology eCOG1X family
#define EM_ECOG1X 168 // Cyan Technology eCOG1X family
#define EM_MAXQ30 169 // Dallas Semiconductor MAXQ30 Core Micro-controllers
#define EM_XIMO16 170 // New Japan Radio (NJR) 16-bit DSP Processor
#define EM_MANIK 171 // M2000 Reconfigurable RISC Microprocessor
#define EM_CRAYNV2 172 // Cray Inc. NV2 vector architecture
#define EM_RX 173 // Renesas RX family
#define EM_METAG 174 // Imagination Technologies META processor architecture
#define EM_MCST_ELBRUS 175 // MCST Elbrus general purpose hardware architecture
#define EM_ECOG16 176 // Cyan Technology eCOG16 family
#define EM_CR16 177 // National Semiconductor CompactRISC 16-bit processor
#define EM_ETPU 178 // Freescale Extended Time Processing Unit
#define EM_SLE9X 179 // Infineon Technologies SLE9X core
#define EM_L1OM 180 // Intel L1OM
#define EM_INTEL181 181 // Reserved by Intel
#define EM_INTEL182 182 // Reserved by Intel
#define EM_res183 183 // Reserved by ARM
#define EM_res184 184 // Reserved by ARM
#define EM_AVR32 185 // Atmel Corporation 32-bit microprocessor family
#define EM_STM8 186 // STMicroeletronics STM8 8-bit microcontroller
#define EM_TILE64 187 // Tilera TILE64 multicore architecture family
#define EM_TILEPRO 188 // Tilera TILEPro multicore architecture family
#define EM_MICROBLAZE 189 // Xilinx MicroBlaze 32-bit RISC soft processor core
#define EM_CUDA 190 // NVIDIA CUDA architecture
#define EM_TILEGX 191 // Tilera TILE-Gx multicore architecture family
#define EM_CLOUDSHIELD 192 // CloudShield architecture family
#define EM_COREA_1ST 193 // KIPO-KAIST Core-A 1st generation processor family
#define EM_COREA_2ND 194 // KIPO-KAIST Core-A 2nd generation processor family
#define EM_ARC_COMPACT2 195 // Synopsys ARCompact V2
#define EM_OPEN8 196 // Open8 8-bit RISC soft processor core
#define EM_RL78 197 // Renesas RL78 family
#define EM_VIDEOCORE5 198 // Broadcom VideoCore V processor
#define EM_78KOR 199 // Renesas 78KOR family
#define EM_56800EX 200 // Freescale 56800EX Digital Signal Controller (DSC)
#define EM_BA1 201 // Beyond BA1 CPU architecture
#define EM_BA2 202 // Beyond BA2 CPU architecture
#define EM_XCORE 203 // XMOS xCORE processor family
#define EM_MCHP_PIC 204 // Microchip 8-bit PIC(r) family
#define EM_INTEL205 205 // Reserved by Intel
#define EM_INTEL206 206 // Reserved by Intel
#define EM_INTEL207 207 // Reserved by Intel
#define EM_INTEL208 208 // Reserved by Intel
#define EM_INTEL209 209 // Reserved by Intel
#define EM_KM32 210 // KM211 KM32 32-bit processor
#define EM_KMX32 211 // KM211 KMX32 32-bit processor
#define EM_KMX16 212 // KM211 KMX16 16-bit processor
#define EM_KMX8 213 // KM211 KMX8 8-bit processor
#define EM_KVARC 214 // KM211 KVARC processor
#define EM_CDP 215 // Paneve CDP architecture family
#define EM_COGE 216 // Cognitive Smart Memory Processor
#define EM_COOL 217 // iCelero CoolEngine
#define EM_NORC 218 // Nanoradio Optimized RISC
#define EM_CSR_KALIMBA 219 // CSR Kalimba architecture family
#define EM_Z80 220 // Zilog Z80
#define EM_VISIUM 221 // Controls and Data Services VISIUMcore processor
#define EM_FT32 222 // FTDI Chip FT32 high performance 32-bit RISC architecture
#define EM_MOXIE 223 // Moxie processor family
#define EM_AMDGPU 224 // AMD GPU architecture
#define EM_RISCV 243 // RISC-V
#define EM_LANAI 244 // Lanai processor
#define EM_CEVA 245 // CEVA Processor Architecture Family
#define EM_CEVA_X2 246 // CEVA X2 Processor Family
#define EM_BPF 247 // Linux BPF – in-kernel virtual machine
#define EM_GRAPHCORE_IPU 248 // Graphcore Intelligent Processing Unit
#define EM_IMG1 249 // Imagination Technologies
#define EM_NFP 250 // Netronome Flow Processor (P)
#define EM_CSKY 252 // C-SKY processor family
// File version
#define EV_NONE 0
#define EV_CURRENT 1
// Identification index
#define EI_MAG0 0
#define EI_MAG1 1
#define EI_MAG2 2
#define EI_MAG3 3
#define EI_CLASS 4
#define EI_DATA 5
#define EI_VERSION 6
#define EI_OSABI 7
#define EI_ABIVERSION 8
#define EI_PAD 9
#define EI_NIDENT 16
// Magic number
#define ELFMAG0 0x7F
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
// File class
#define ELFCLASSNONE 0
#define ELFCLASS32 1
#define ELFCLASS64 2
// Encoding
#define ELFDATANONE 0
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
// OS extensions
#define ELFOSABI_NONE 0 // No extensions or unspecified
#define ELFOSABI_HPUX 1 // Hewlett-Packard HP-UX
#define ELFOSABI_NETBSD 2 // NetBSD
#define ELFOSABI_LINUX 3 // Linux
#define ELFOSABI_SOLARIS 6 // Sun Solaris
#define ELFOSABI_AIX 7 // AIX
#define ELFOSABI_IRIX 8 // IRIX
#define ELFOSABI_FREEBSD 9 // FreeBSD
#define ELFOSABI_TRU64 10 // Compaq TRU64 UNIX
#define ELFOSABI_MODESTO 11 // Novell Modesto
#define ELFOSABI_OPENBSD 12 // Open BSD
#define ELFOSABI_OPENVMS 13 // Open VMS
#define ELFOSABI_NSK 14 // Hewlett-Packard Non-Stop Kernel
#define ELFOSABI_AROS 15 // Amiga Research OS
#define ELFOSABI_FENIXOS 16 // The FenixOS highly scalable multi-core OS
// 64-255 Architecture-specific value range
#define ELFOSABI_AMDGPU_HSA \
64 // AMDGPU OS for HSA compatible compute // kernels.
#define ELFOSABI_AMDGPU_PAL \
65 // AMDGPU OS for AMD PAL compatible graphics // shaders and compute kernels.
#define ELFOSABI_AMDGPU_MESA3D \
66 // AMDGPU OS for Mesa3D compatible graphics // shaders and compute kernels.
// AMDGPU specific e_flags
#define EF_AMDGPU_MACH 0x0ff // AMDGPU processor selection mask.
#define EF_AMDGPU_XNACK \
0x100 // Indicates if the XNACK target feature is // enabled for all code contained in the ELF.
// AMDGPU processors
#define EF_AMDGPU_MACH_NONE 0x000 // Unspecified processor.
#define EF_AMDGPU_MACH_R600_R600 0x001
#define EF_AMDGPU_MACH_R600_R630 0x002
#define EF_AMDGPU_MACH_R600_RS880 0x003
#define EF_AMDGPU_MACH_R600_RV670 0x004
#define EF_AMDGPU_MACH_R600_RV710 0x005
#define EF_AMDGPU_MACH_R600_RV730 0x006
#define EF_AMDGPU_MACH_R600_RV770 0x007
#define EF_AMDGPU_MACH_R600_CEDAR 0x008
#define EF_AMDGPU_MACH_R600_CYPRESS 0x009
#define EF_AMDGPU_MACH_R600_JUNIPER 0x00a
#define EF_AMDGPU_MACH_R600_REDWOOD 0x00b
#define EF_AMDGPU_MACH_R600_SUMO 0x00c
#define EF_AMDGPU_MACH_R600_BARTS 0x00d
#define EF_AMDGPU_MACH_R600_CAICOS 0x00e
#define EF_AMDGPU_MACH_R600_CAYMAN 0x00f
#define EF_AMDGPU_MACH_R600_TURKS 0x010
#define EF_AMDGPU_MACH_R600_RESERVED_FIRST 0x011
#define EF_AMDGPU_MACH_R600_RESERVED_LAST 0x01f
#define EF_AMDGPU_MACH_R600_FIRST EF_AMDGPU_MACH_R600_R600
#define EF_AMDGPU_MACH_R600_LAST EF_AMDGPU_MACH_R600_TURKS
#define EF_AMDGPU_MACH_AMDGCN_GFX600 0x020
#define EF_AMDGPU_MACH_AMDGCN_GFX601 0x021
#define EF_AMDGPU_MACH_AMDGCN_GFX700 0x022
#define EF_AMDGPU_MACH_AMDGCN_GFX701 0x023
#define EF_AMDGPU_MACH_AMDGCN_GFX702 0x024
#define EF_AMDGPU_MACH_AMDGCN_GFX703 0x025
#define EF_AMDGPU_MACH_AMDGCN_GFX704 0x026
#define EF_AMDGPU_MACH_AMDGCN_GFX801 0x028
#define EF_AMDGPU_MACH_AMDGCN_GFX802 0x029
#define EF_AMDGPU_MACH_AMDGCN_GFX803 0x02a
#define EF_AMDGPU_MACH_AMDGCN_GFX810 0x02b
#define EF_AMDGPU_MACH_AMDGCN_GFX900 0x02c
#define EF_AMDGPU_MACH_AMDGCN_GFX902 0x02d
#define EF_AMDGPU_MACH_AMDGCN_GFX904 0x02e
#define EF_AMDGPU_MACH_AMDGCN_GFX906 0x02f
#define EF_AMDGPU_MACH_AMDGCN_RESERVED0 0x027
#define EF_AMDGPU_MACH_AMDGCN_RESERVED1 0x030
#define EF_AMDGPU_MACH_AMDGCN_FIRST EF_AMDGPU_MACH_AMDGCN_GFX600
#define EF_AMDGPU_MACH_AMDGCN_LAST EF_AMDGPU_MACH_AMDGCN_GFX906
/////////////////////
// Sections constants
// Section indexes
#define SHN_UNDEF 0
#define SHN_LORESERVE 0xFF00
#define SHN_LOPROC 0xFF00
#define SHN_HIPROC 0xFF1F
#define SHN_LOOS 0xFF20
#define SHN_HIOS 0xFF3F
#define SHN_ABS 0xFFF1
#define SHN_COMMON 0xFFF2
#define SHN_XINDEX 0xFFFF
#define SHN_HIRESERVE 0xFFFF
// Section types
#define SHT_NULL 0
#define SHT_PROGBITS 1
#define SHT_SYMTAB 2
#define SHT_STRTAB 3
#define SHT_RELA 4
#define SHT_HASH 5
#define SHT_DYNAMIC 6
#define SHT_NOTE 7
#define SHT_NOBITS 8
#define SHT_REL 9
#define SHT_SHLIB 10
#define SHT_DYNSYM 11
#define SHT_INIT_ARRAY 14
#define SHT_FINI_ARRAY 15
#define SHT_PREINIT_ARRAY 16
#define SHT_GROUP 17
#define SHT_SYMTAB_SHNDX 18
#define SHT_LOOS 0x60000000
#define SHT_HIOS 0x6fffffff
#define SHT_LOPROC 0x70000000
#define SHT_HIPROC 0x7FFFFFFF
#define SHT_LOUSER 0x80000000
#define SHT_HIUSER 0xFFFFFFFF
// Section attribute flags
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define SHF_EXECINSTR 0x4
#define SHF_MERGE 0x10
#define SHF_STRINGS 0x20
#define SHF_INFO_LINK 0x40
#define SHF_LINK_ORDER 0x80
#define SHF_OS_NONCONFORMING 0x100
#define SHF_GROUP 0x200
#define SHF_TLS 0x400
#define SHF_MASKOS 0x0ff00000
#define SHF_MASKPROC 0xF0000000
// Section group flags
#define GRP_COMDAT 0x1
#define GRP_MASKOS 0x0ff00000
#define GRP_MASKPROC 0xf0000000
// Symbol binding
#define STB_LOCAL 0
#define STB_GLOBAL 1
#define STB_WEAK 2
#define STB_LOOS 10
#define STB_HIOS 12
#define STB_MULTIDEF 13
#define STB_LOPROC 13
#define STB_HIPROC 15
// Note types
#define NT_AMDGPU_METADATA 1
#define NT_AMD_AMDGPU_HSA_METADATA 10
#define NT_AMD_AMDGPU_ISA 11
#define NT_AMD_AMDGPU_PAL_METADATA 12
// Symbol types
#define STT_NOTYPE 0
#define STT_OBJECT 1
#define STT_FUNC 2
#define STT_SECTION 3
#define STT_FILE 4
#define STT_COMMON 5
#define STT_TLS 6
#define STT_LOOS 10
#define STT_AMDGPU_HSA_KERNEL 10
#define STT_HIOS 12
#define STT_LOPROC 13
#define STT_HIPROC 15
// Symbol visibility
#define STV_DEFAULT 0
#define STV_INTERNAL 1
#define STV_HIDDEN 2
#define STV_PROTECTED 3
// Undefined name
#define STN_UNDEF 0
// Relocation types
#define R_386_NONE 0
#define R_X86_64_NONE 0
#define R_AMDGPU_NONE 0
#define R_386_32 1
#define R_X86_64_64 1
#define R_AMDGPU_ABS32_LO 1
#define R_386_PC32 2
#define R_X86_64_PC32 2
#define R_AMDGPU_ABS32_HI 2
#define R_386_GOT32 3
#define R_X86_64_GOT32 3
#define R_AMDGPU_ABS64 3
#define R_386_PLT32 4
#define R_X86_64_PLT32 4
#define R_AMDGPU_REL32 4
#define R_386_COPY 5
#define R_X86_64_COPY 5
#define R_AMDGPU_REL64 5
#define R_386_GLOB_DAT 6
#define R_X86_64_GLOB_DAT 6
#define R_AMDGPU_ABS32 6
#define R_386_JMP_SLOT 7
#define R_X86_64_JUMP_SLOT 7
#define R_AMDGPU_GOTPCREL 7
#define R_386_RELATIVE 8
#define R_X86_64_RELATIVE 8
#define R_AMDGPU_GOTPCREL32_LO 8
#define R_386_GOTOFF 9
#define R_X86_64_GOTPCREL 9
#define R_AMDGPU_GOTPCREL32_HI 9
#define R_386_GOTPC 10
#define R_X86_64_32 10
#define R_AMDGPU_REL32_LO 10
#define R_386_32PLT 11
#define R_X86_64_32S 11
#define R_AMDGPU_REL32_HI 11
#define R_X86_64_16 12
#define R_X86_64_PC16 13
#define R_AMDGPU_RELATIVE64 13
#define R_386_TLS_TPOFF 14
#define R_X86_64_8 14
#define R_386_TLS_IE 15
#define R_X86_64_PC8 15
#define R_386_TLS_GOTIE 16
#define R_X86_64_DTPMOD64 16
#define R_386_TLS_LE 17
#define R_X86_64_DTPOFF64 17
#define R_386_TLS_GD 18
#define R_X86_64_TPOFF64 18
#define R_386_TLS_LDM 19
#define R_X86_64_TLSGD 19
#define R_386_16 20
#define R_X86_64_TLSLD 20
#define R_386_PC16 21
#define R_X86_64_DTPOFF32 21
#define R_386_8 22
#define R_X86_64_GOTTPOFF 22
#define R_386_PC8 23
#define R_X86_64_TPOFF32 23
#define R_386_TLS_GD_32 24
#define R_X86_64_PC64 24
#define R_386_TLS_GD_PUSH 25
#define R_X86_64_GOTOFF64 25
#define R_386_TLS_GD_CALL 26
#define R_X86_64_GOTPC32 26
#define R_386_TLS_GD_POP 27
#define R_X86_64_GOT64 27
#define R_386_TLS_LDM_32 28
#define R_X86_64_GOTPCREL64 28
#define R_386_TLS_LDM_PUSH 29
#define R_X86_64_GOTPC64 29
#define R_386_TLS_LDM_CALL 30
#define R_X86_64_GOTPLT64 30
#define R_386_TLS_LDM_POP 31
#define R_X86_64_PLTOFF64 31
#define R_386_TLS_LDO_32 32
#define R_386_TLS_IE_32 33
#define R_386_TLS_LE_32 34
#define R_X86_64_GOTPC32_TLSDESC 34
#define R_386_TLS_DTPMOD32 35
#define R_X86_64_TLSDESC_CALL 35
#define R_386_TLS_DTPOFF32 36
#define R_X86_64_TLSDESC 36
#define R_386_TLS_TPOFF32 37
#define R_X86_64_IRELATIVE 37
#define R_386_SIZE32 38
#define R_386_TLS_GOTDESC 39
#define R_386_TLS_DESC_CALL 40
#define R_386_TLS_DESC 41
#define R_386_IRELATIVE 42
#define R_386_GOT32X 43
#define R_X86_64_GNU_VTINHERIT 250
#define R_X86_64_GNU_VTENTRY 251
// Segment types
#define PT_NULL 0
#define PT_LOAD 1
#define PT_DYNAMIC 2
#define PT_INTERP 3
#define PT_NOTE 4
#define PT_SHLIB 5
#define PT_PHDR 6
#define PT_TLS 7
#define PT_LOOS 0x60000000
#define PT_HIOS 0x6fffffff
#define PT_LOPROC 0x70000000
#define PT_HIPROC 0x7FFFFFFF
// Segment flags
#define PF_X 1 // Execute
#define PF_W 2 // Write
#define PF_R 4 // Read
#define PF_MASKOS 0x0ff00000 // Unspecified
#define PF_MASKPROC 0xf0000000 // Unspecified
// Dynamic Array Tags
#define DT_NULL 0
#define DT_NEEDED 1
#define DT_PLTRELSZ 2
#define DT_PLTGOT 3
#define DT_HASH 4
#define DT_STRTAB 5
#define DT_SYMTAB 6
#define DT_RELA 7
#define DT_RELASZ 8
#define DT_RELAENT 9
#define DT_STRSZ 10
#define DT_SYMENT 11
#define DT_INIT 12
#define DT_FINI 13
#define DT_SONAME 14
#define DT_RPATH 15
#define DT_SYMBOLIC 16
#define DT_REL 17
#define DT_RELSZ 18
#define DT_RELENT 19
#define DT_PLTREL 20
#define DT_DEBUG 21
#define DT_TEXTREL 22
#define DT_JMPREL 23
#define DT_BIND_NOW 24
#define DT_INIT_ARRAY 25
#define DT_FINI_ARRAY 26
#define DT_INIT_ARRAYSZ 27
#define DT_FINI_ARRAYSZ 28
#define DT_RUNPATH 29
#define DT_FLAGS 30
#define DT_ENCODING 32
#define DT_PREINIT_ARRAY 32
#define DT_PREINIT_ARRAYSZ 33
#define DT_MAXPOSTAGS 34
#define DT_LOOS 0x6000000D
#define DT_HIOS 0x6ffff000
#define DT_LOPROC 0x70000000
#define DT_HIPROC 0x7FFFFFFF
// DT_FLAGS values
#define DF_ORIGIN 0x1
#define DF_SYMBOLIC 0x2
#define DF_TEXTREL 0x4
#define DF_BIND_NOW 0x8
#define DF_STATIC_TLS 0x10
// ELF file header
struct Elf32_Ehdr
{
unsigned char e_ident[EI_NIDENT];
Elf_Half e_type;
Elf_Half e_machine;
Elf_Word e_version;
Elf32_Addr e_entry;
Elf32_Off e_phoff;
Elf32_Off e_shoff;
Elf_Word e_flags;
Elf_Half e_ehsize;
Elf_Half e_phentsize;
Elf_Half e_phnum;
Elf_Half e_shentsize;
Elf_Half e_shnum;
Elf_Half e_shstrndx;
};
struct Elf64_Ehdr
{
unsigned char e_ident[EI_NIDENT];
Elf_Half e_type;
Elf_Half e_machine;
Elf_Word e_version;
Elf64_Addr e_entry;
Elf64_Off e_phoff;
Elf64_Off e_shoff;
Elf_Word e_flags;
Elf_Half e_ehsize;
Elf_Half e_phentsize;
Elf_Half e_phnum;
Elf_Half e_shentsize;
Elf_Half e_shnum;
Elf_Half e_shstrndx;
};
// Section header
struct Elf32_Shdr
{
Elf_Word sh_name;
Elf_Word sh_type;
Elf_Word sh_flags;
Elf32_Addr sh_addr;
Elf32_Off sh_offset;
Elf_Word sh_size;
Elf_Word sh_link;
Elf_Word sh_info;
Elf_Word sh_addralign;
Elf_Word sh_entsize;
};
struct Elf64_Shdr
{
Elf_Word sh_name;
Elf_Word sh_type;
Elf_Xword sh_flags;
Elf64_Addr sh_addr;
Elf64_Off sh_offset;
Elf_Xword sh_size;
Elf_Word sh_link;
Elf_Word sh_info;
Elf_Xword sh_addralign;
Elf_Xword sh_entsize;
};
// Segment header
struct Elf32_Phdr
{
Elf_Word p_type;
Elf32_Off p_offset;
Elf32_Addr p_vaddr;
Elf32_Addr p_paddr;
Elf_Word p_filesz;
Elf_Word p_memsz;
Elf_Word p_flags;
Elf_Word p_align;
};
struct Elf64_Phdr
{
Elf_Word p_type;
Elf_Word p_flags;
Elf64_Off p_offset;
Elf64_Addr p_vaddr;
Elf64_Addr p_paddr;
Elf_Xword p_filesz;
Elf_Xword p_memsz;
Elf_Xword p_align;
};
// Symbol table entry
struct Elf32_Sym
{
Elf_Word st_name;
Elf32_Addr st_value;
Elf_Word st_size;
unsigned char st_info;
unsigned char st_other;
Elf_Half st_shndx;
};
struct Elf64_Sym
{
Elf_Word st_name;
unsigned char st_info;
unsigned char st_other;
Elf_Half st_shndx;
Elf64_Addr st_value;
Elf_Xword st_size;
};
#define ELF_ST_BIND( i ) ( ( i ) >> 4 )
#define ELF_ST_TYPE( i ) ( (i)&0xf )
#define ELF_ST_INFO( b, t ) ( ( ( b ) << 4 ) + ( (t)&0xf ) )
#define ELF_ST_VISIBILITY( o ) ( (o)&0x3 )
// Relocation entries
struct Elf32_Rel
{
Elf32_Addr r_offset;
Elf_Word r_info;
};
struct Elf32_Rela
{
Elf32_Addr r_offset;
Elf_Word r_info;
Elf_Sword r_addend;
};
struct Elf64_Rel
{
Elf64_Addr r_offset;
Elf_Xword r_info;
};
struct Elf64_Rela
{
Elf64_Addr r_offset;
Elf_Xword r_info;
Elf_Sxword r_addend;
};
#define ELF32_R_SYM( i ) ( ( i ) >> 8 )
#define ELF32_R_TYPE( i ) ( (unsigned char)( i ) )
#define ELF32_R_INFO( s, t ) ( ( ( s ) << 8 ) + (unsigned char)( t ) )
#define ELF64_R_SYM( i ) ( ( i ) >> 32 )
#define ELF64_R_TYPE( i ) ( (i)&0xffffffffL )
#define ELF64_R_INFO( s, t ) \
( ( ( ( int64_t )( s ) ) << 32 ) + ( (t)&0xffffffffL ) )
// Dynamic structure
struct Elf32_Dyn
{
Elf_Sword d_tag;
union {
Elf_Word d_val;
Elf32_Addr d_ptr;
} d_un;
};
struct Elf64_Dyn
{
Elf_Sxword d_tag;
union {
Elf_Xword d_val;
Elf64_Addr d_ptr;
} d_un;
};
} // namespace ELFIO
#endif // ELFTYPES_H
/*** End of inlined file: elf_types.hpp ***/
/*** Start of inlined file: elfio_version.hpp ***/
#define ELFIO_VERSION "3.8"
/*** End of inlined file: elfio_version.hpp ***/
/*** Start of inlined file: elfio_utils.hpp ***/
#ifndef ELFIO_UTILS_HPP
#define ELFIO_UTILS_HPP
#define ELFIO_GET_ACCESS( TYPE, NAME, FIELD ) \
TYPE get_##NAME() const { return ( *convertor )( FIELD ); }
#define ELFIO_SET_ACCESS( TYPE, NAME, FIELD ) \
void set_##NAME( TYPE value ) \
{ \
FIELD = value; \
FIELD = ( *convertor )( FIELD ); \
}
#define ELFIO_GET_SET_ACCESS( TYPE, NAME, FIELD ) \
TYPE get_##NAME() const { return ( *convertor )( FIELD ); } \
void set_##NAME( TYPE value ) \
{ \
FIELD = value; \
FIELD = ( *convertor )( FIELD ); \
}
#define ELFIO_GET_ACCESS_DECL( TYPE, NAME ) virtual TYPE get_##NAME() const = 0
#define ELFIO_SET_ACCESS_DECL( TYPE, NAME ) \
virtual void set_##NAME( TYPE value ) = 0
#define ELFIO_GET_SET_ACCESS_DECL( TYPE, NAME ) \
virtual TYPE get_##NAME() const = 0; \
virtual void set_##NAME( TYPE value ) = 0
namespace ELFIO {
//------------------------------------------------------------------------------
class endianess_convertor
{
public:
//------------------------------------------------------------------------------
endianess_convertor() { need_conversion = false; }
//------------------------------------------------------------------------------
void setup( unsigned char elf_file_encoding )
{
need_conversion = ( elf_file_encoding != get_host_encoding() );
}
//------------------------------------------------------------------------------
uint64_t operator()( uint64_t value ) const
{
if ( !need_conversion ) {
return value;
}
value = ( ( value & 0x00000000000000FFull ) << 56 ) |
( ( value & 0x000000000000FF00ull ) << 40 ) |
( ( value & 0x0000000000FF0000ull ) << 24 ) |
( ( value & 0x00000000FF000000ull ) << 8 ) |
( ( value & 0x000000FF00000000ull ) >> 8 ) |
( ( value & 0x0000FF0000000000ull ) >> 24 ) |
( ( value & 0x00FF000000000000ull ) >> 40 ) |
( ( value & 0xFF00000000000000ull ) >> 56 );
return value;
}
//------------------------------------------------------------------------------
int64_t operator()( int64_t value ) const
{
if ( !need_conversion ) {
return value;
}
return ( int64_t )( *this )( (uint64_t)value );
}
//------------------------------------------------------------------------------
uint32_t operator()( uint32_t value ) const
{
if ( !need_conversion ) {
return value;
}
value =
( ( value & 0x000000FF ) << 24 ) | ( ( value & 0x0000FF00 ) << 8 ) |
( ( value & 0x00FF0000 ) >> 8 ) | ( ( value & 0xFF000000 ) >> 24 );
return value;
}
//------------------------------------------------------------------------------
int32_t operator()( int32_t value ) const
{
if ( !need_conversion ) {
return value;
}
return ( int32_t )( *this )( (uint32_t)value );
}
//------------------------------------------------------------------------------
uint16_t operator()( uint16_t value ) const
{
if ( !need_conversion ) {
return value;
}
value = ( ( value & 0x00FF ) << 8 ) | ( ( value & 0xFF00 ) >> 8 );
return value;
}
//------------------------------------------------------------------------------
int16_t operator()( int16_t value ) const
{
if ( !need_conversion ) {
return value;
}
return ( int16_t )( *this )( (uint16_t)value );
}
//------------------------------------------------------------------------------
int8_t operator()( int8_t value ) const { return value; }
//------------------------------------------------------------------------------
uint8_t operator()( uint8_t value ) const { return value; }
//------------------------------------------------------------------------------
private:
//------------------------------------------------------------------------------
unsigned char get_host_encoding() const
{
static const int tmp = 1;
if ( 1 == *(const char*)&tmp ) {
return ELFDATA2LSB;
}
else {
return ELFDATA2MSB;
}
}
//------------------------------------------------------------------------------
private:
bool need_conversion;
};
//------------------------------------------------------------------------------
inline uint32_t elf_hash( const unsigned char* name )
{
uint32_t h = 0, g;
while ( *name ) {
h = ( h << 4 ) + *name++;
g = h & 0xf0000000;
if ( g != 0 )
h ^= g >> 24;
h &= ~g;
}
return h;
}
} // namespace ELFIO
#endif // ELFIO_UTILS_HPP
/*** End of inlined file: elfio_utils.hpp ***/
/*** Start of inlined file: elfio_header.hpp ***/
#ifndef ELF_HEADER_HPP
#define ELF_HEADER_HPP
#include <iostream>
namespace ELFIO {
class elf_header
{
public:
virtual ~elf_header(){};
virtual bool load( std::istream& stream ) = 0;
virtual bool save( std::ostream& stream ) const = 0;
// ELF header functions
ELFIO_GET_ACCESS_DECL( unsigned char, class );
ELFIO_GET_ACCESS_DECL( unsigned char, elf_version );
ELFIO_GET_ACCESS_DECL( unsigned char, encoding );
ELFIO_GET_ACCESS_DECL( Elf_Half, header_size );
ELFIO_GET_ACCESS_DECL( Elf_Half, section_entry_size );
ELFIO_GET_ACCESS_DECL( Elf_Half, segment_entry_size );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, version );
ELFIO_GET_SET_ACCESS_DECL( unsigned char, os_abi );
ELFIO_GET_SET_ACCESS_DECL( unsigned char, abi_version );
ELFIO_GET_SET_ACCESS_DECL( Elf_Half, type );
ELFIO_GET_SET_ACCESS_DECL( Elf_Half, machine );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, flags );
ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, entry );
ELFIO_GET_SET_ACCESS_DECL( Elf_Half, sections_num );
ELFIO_GET_SET_ACCESS_DECL( Elf64_Off, sections_offset );
ELFIO_GET_SET_ACCESS_DECL( Elf_Half, segments_num );
ELFIO_GET_SET_ACCESS_DECL( Elf64_Off, segments_offset );
ELFIO_GET_SET_ACCESS_DECL( Elf_Half, section_name_str_index );
};
template <class T> struct elf_header_impl_types;
template <> struct elf_header_impl_types<Elf32_Ehdr>
{
typedef Elf32_Phdr Phdr_type;
typedef Elf32_Shdr Shdr_type;
static const unsigned char file_class = ELFCLASS32;
};
template <> struct elf_header_impl_types<Elf64_Ehdr>
{
typedef Elf64_Phdr Phdr_type;
typedef Elf64_Shdr Shdr_type;
static const unsigned char file_class = ELFCLASS64;
};
template <class T> class elf_header_impl : public elf_header
{
public:
//------------------------------------------------------------------------------
elf_header_impl( endianess_convertor* convertor_, unsigned char encoding )
{
convertor = convertor_;
std::fill_n( reinterpret_cast<char*>( &header ), sizeof( header ),
'\0' );
header.e_ident[EI_MAG0] = ELFMAG0;
header.e_ident[EI_MAG1] = ELFMAG1;
header.e_ident[EI_MAG2] = ELFMAG2;
header.e_ident[EI_MAG3] = ELFMAG3;
header.e_ident[EI_CLASS] = elf_header_impl_types<T>::file_class;
header.e_ident[EI_DATA] = encoding;
header.e_ident[EI_VERSION] = EV_CURRENT;
header.e_version = ( *convertor )( (Elf_Word)EV_CURRENT );
header.e_ehsize = ( sizeof( header ) );
header.e_ehsize = ( *convertor )( header.e_ehsize );
header.e_shstrndx = ( *convertor )( (Elf_Half)1 );
header.e_phentsize =
sizeof( typename elf_header_impl_types<T>::Phdr_type );
header.e_shentsize =
sizeof( typename elf_header_impl_types<T>::Shdr_type );
header.e_phentsize = ( *convertor )( header.e_phentsize );
header.e_shentsize = ( *convertor )( header.e_shentsize );
}
//------------------------------------------------------------------------------
bool load( std::istream& stream )
{
stream.seekg( 0 );
stream.read( reinterpret_cast<char*>( &header ), sizeof( header ) );
return ( stream.gcount() == sizeof( header ) );
}
//------------------------------------------------------------------------------
bool save( std::ostream& stream ) const
{
stream.seekp( 0 );
stream.write( reinterpret_cast<const char*>( &header ),
sizeof( header ) );
return stream.good();
}
//------------------------------------------------------------------------------
// ELF header functions
ELFIO_GET_ACCESS( unsigned char, class, header.e_ident[EI_CLASS] );
ELFIO_GET_ACCESS( unsigned char, elf_version, header.e_ident[EI_VERSION] );
ELFIO_GET_ACCESS( unsigned char, encoding, header.e_ident[EI_DATA] );
ELFIO_GET_ACCESS( Elf_Half, header_size, header.e_ehsize );
ELFIO_GET_ACCESS( Elf_Half, section_entry_size, header.e_shentsize );
ELFIO_GET_ACCESS( Elf_Half, segment_entry_size, header.e_phentsize );
ELFIO_GET_SET_ACCESS( Elf_Word, version, header.e_version );
ELFIO_GET_SET_ACCESS( unsigned char, os_abi, header.e_ident[EI_OSABI] );
ELFIO_GET_SET_ACCESS( unsigned char,
abi_version,
header.e_ident[EI_ABIVERSION] );
ELFIO_GET_SET_ACCESS( Elf_Half, type, header.e_type );
ELFIO_GET_SET_ACCESS( Elf_Half, machine, header.e_machine );
ELFIO_GET_SET_ACCESS( Elf_Word, flags, header.e_flags );
ELFIO_GET_SET_ACCESS( Elf_Half, section_name_str_index, header.e_shstrndx );
ELFIO_GET_SET_ACCESS( Elf64_Addr, entry, header.e_entry );
ELFIO_GET_SET_ACCESS( Elf_Half, sections_num, header.e_shnum );
ELFIO_GET_SET_ACCESS( Elf64_Off, sections_offset, header.e_shoff );
ELFIO_GET_SET_ACCESS( Elf_Half, segments_num, header.e_phnum );
ELFIO_GET_SET_ACCESS( Elf64_Off, segments_offset, header.e_phoff );
private:
T header;
endianess_convertor* convertor;
};
} // namespace ELFIO
#endif // ELF_HEADER_HPP
/*** End of inlined file: elfio_header.hpp ***/
/*** Start of inlined file: elfio_section.hpp ***/
#ifndef ELFIO_SECTION_HPP
#define ELFIO_SECTION_HPP
#include <string>
#include <iostream>
#include <new>
namespace ELFIO {
class section
{
friend class elfio;
public:
virtual ~section(){};
ELFIO_GET_ACCESS_DECL( Elf_Half, index );
ELFIO_GET_SET_ACCESS_DECL( std::string, name );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, type );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, flags );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, info );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, link );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, addr_align );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, entry_size );
ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, address );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, size );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, name_string_offset );
ELFIO_GET_ACCESS_DECL( Elf64_Off, offset );
virtual const char* get_data() const = 0;
virtual void set_data( const char* pData, Elf_Word size ) = 0;
virtual void set_data( const std::string& data ) = 0;
virtual void append_data( const char* pData, Elf_Word size ) = 0;
virtual void append_data( const std::string& data ) = 0;
virtual size_t get_stream_size() const = 0;
virtual void set_stream_size( size_t value ) = 0;
protected:
ELFIO_SET_ACCESS_DECL( Elf64_Off, offset );
ELFIO_SET_ACCESS_DECL( Elf_Half, index );
virtual void load( std::istream& stream, std::streampos header_offset ) = 0;
virtual void save( std::ostream& stream,
std::streampos header_offset,
std::streampos data_offset ) = 0;
virtual bool is_address_initialized() const = 0;
};
template <class T> class section_impl : public section
{
public:
//------------------------------------------------------------------------------
section_impl( const endianess_convertor* convertor_ )
: convertor( convertor_ )
{
std::fill_n( reinterpret_cast<char*>( &header ), sizeof( header ),
'\0' );
is_address_set = false;
data = 0;
data_size = 0;
index = 0;
stream_size = 0;
}
//------------------------------------------------------------------------------
~section_impl() { delete[] data; }
//------------------------------------------------------------------------------
// Section info functions
ELFIO_GET_SET_ACCESS( Elf_Word, type, header.sh_type );
ELFIO_GET_SET_ACCESS( Elf_Xword, flags, header.sh_flags );
ELFIO_GET_SET_ACCESS( Elf_Xword, size, header.sh_size );
ELFIO_GET_SET_ACCESS( Elf_Word, link, header.sh_link );
ELFIO_GET_SET_ACCESS( Elf_Word, info, header.sh_info );
ELFIO_GET_SET_ACCESS( Elf_Xword, addr_align, header.sh_addralign );
ELFIO_GET_SET_ACCESS( Elf_Xword, entry_size, header.sh_entsize );
ELFIO_GET_SET_ACCESS( Elf_Word, name_string_offset, header.sh_name );
ELFIO_GET_ACCESS( Elf64_Addr, address, header.sh_addr );
//------------------------------------------------------------------------------
Elf_Half get_index() const { return index; }
//------------------------------------------------------------------------------
std::string get_name() const { return name; }
//------------------------------------------------------------------------------
void set_name( std::string name_ ) { name = name_; }
//------------------------------------------------------------------------------
void set_address( Elf64_Addr value )
{
header.sh_addr = value;
header.sh_addr = ( *convertor )( header.sh_addr );
is_address_set = true;
}
//------------------------------------------------------------------------------
bool is_address_initialized() const { return is_address_set; }
//------------------------------------------------------------------------------
const char* get_data() const { return data; }
//------------------------------------------------------------------------------
void set_data( const char* raw_data, Elf_Word size )
{
if ( get_type() != SHT_NOBITS ) {
delete[] data;
data = new ( std::nothrow ) char[size];
if ( 0 != data && 0 != raw_data ) {
data_size = size;
std::copy( raw_data, raw_data + size, data );
}
else {
data_size = 0;
}
}
set_size( data_size );
}
//------------------------------------------------------------------------------
void set_data( const std::string& str_data )
{
return set_data( str_data.c_str(), (Elf_Word)str_data.size() );
}
//------------------------------------------------------------------------------
void append_data( const char* raw_data, Elf_Word size )
{
if ( get_type() != SHT_NOBITS ) {
if ( get_size() + size < data_size ) {
std::copy( raw_data, raw_data + size, data + get_size() );
}
else {
data_size = 2 * ( data_size + size );
char* new_data = new ( std::nothrow ) char[data_size];
if ( 0 != new_data ) {
std::copy( data, data + get_size(), new_data );
std::copy( raw_data, raw_data + size,
new_data + get_size() );
delete[] data;
data = new_data;
}
else {
size = 0;
}
}
set_size( get_size() + size );
}
}
//------------------------------------------------------------------------------
void append_data( const std::string& str_data )
{
return append_data( str_data.c_str(), (Elf_Word)str_data.size() );
}
//------------------------------------------------------------------------------
protected:
//------------------------------------------------------------------------------
ELFIO_GET_SET_ACCESS( Elf64_Off, offset, header.sh_offset );
//------------------------------------------------------------------------------
void set_index( Elf_Half value ) { index = value; }
//------------------------------------------------------------------------------
void load( std::istream& stream, std::streampos header_offset )
{
std::fill_n( reinterpret_cast<char*>( &header ), sizeof( header ),
'\0' );
stream.seekg( 0, stream.end );
set_stream_size( stream.tellg() );
stream.seekg( header_offset );
stream.read( reinterpret_cast<char*>( &header ), sizeof( header ) );
Elf_Xword size = get_size();
if ( 0 == data && SHT_NULL != get_type() && SHT_NOBITS != get_type() &&
size < get_stream_size() ) {
data = new ( std::nothrow ) char[size + 1];
if ( ( 0 != size ) && ( 0 != data ) ) {
stream.seekg( ( *convertor )( header.sh_offset ) );
stream.read( data, size );
data[size] = 0; // Ensure data is ended with 0 to avoid oob read
data_size = size;
}
else {
data_size = 0;
}
}
}
//------------------------------------------------------------------------------
void save( std::ostream& stream,
std::streampos header_offset,
std::streampos data_offset )
{
if ( 0 != get_index() ) {
header.sh_offset = data_offset;
header.sh_offset = ( *convertor )( header.sh_offset );
}
save_header( stream, header_offset );
if ( get_type() != SHT_NOBITS && get_type() != SHT_NULL &&
get_size() != 0 && data != 0 ) {
save_data( stream, data_offset );
}
}
//------------------------------------------------------------------------------
private:
//------------------------------------------------------------------------------
void save_header( std::ostream& stream, std::streampos header_offset ) const
{
stream.seekp( header_offset );
stream.write( reinterpret_cast<const char*>( &header ),
sizeof( header ) );
}
//------------------------------------------------------------------------------
void save_data( std::ostream& stream, std::streampos data_offset ) const
{
stream.seekp( data_offset );
stream.write( get_data(), get_size() );
}
//------------------------------------------------------------------------------
size_t get_stream_size() const { return stream_size; }
//------------------------------------------------------------------------------
void set_stream_size( size_t value ) { stream_size = value; }
//------------------------------------------------------------------------------
private:
T header;
Elf_Half index;
std::string name;
char* data;
Elf_Word data_size;
const endianess_convertor* convertor;
bool is_address_set;
size_t stream_size;
};
} // namespace ELFIO
#endif // ELFIO_SECTION_HPP
/*** End of inlined file: elfio_section.hpp ***/
/*** Start of inlined file: elfio_segment.hpp ***/
#ifndef ELFIO_SEGMENT_HPP
#define ELFIO_SEGMENT_HPP
#include <iostream>
#include <vector>
#include <new>
namespace ELFIO {
class segment
{
friend class elfio;
public:
virtual ~segment(){};
ELFIO_GET_ACCESS_DECL( Elf_Half, index );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, type );
ELFIO_GET_SET_ACCESS_DECL( Elf_Word, flags );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, align );
ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, virtual_address );
ELFIO_GET_SET_ACCESS_DECL( Elf64_Addr, physical_address );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, file_size );
ELFIO_GET_SET_ACCESS_DECL( Elf_Xword, memory_size );
ELFIO_GET_ACCESS_DECL( Elf64_Off, offset );
virtual const char* get_data() const = 0;
virtual Elf_Half add_section_index( Elf_Half index,
Elf_Xword addr_align ) = 0;
virtual Elf_Half get_sections_num() const = 0;
virtual Elf_Half get_section_index_at( Elf_Half num ) const = 0;
virtual bool is_offset_initialized() const = 0;
protected:
ELFIO_SET_ACCESS_DECL( Elf64_Off, offset );
ELFIO_SET_ACCESS_DECL( Elf_Half, index );
virtual const std::vector<Elf_Half>& get_sections() const = 0;
virtual void load( std::istream& stream, std::streampos header_offset ) = 0;
virtual void save( std::ostream& stream,
std::streampos header_offset,
std::streampos data_offset ) = 0;
};
//------------------------------------------------------------------------------
template <class T> class segment_impl : public segment
{
public:
//------------------------------------------------------------------------------
segment_impl( endianess_convertor* convertor_ )
: stream_size( 0 ), index( 0 ), data( 0 ), convertor( convertor_ )
{
is_offset_set = false;
std::fill_n( reinterpret_cast<char*>( &ph ), sizeof( ph ), '\0' );
}
//------------------------------------------------------------------------------
virtual ~segment_impl() { delete[] data; }
//------------------------------------------------------------------------------
// Section info functions
ELFIO_GET_SET_ACCESS( Elf_Word, type, ph.p_type );
ELFIO_GET_SET_ACCESS( Elf_Word, flags, ph.p_flags );
ELFIO_GET_SET_ACCESS( Elf_Xword, align, ph.p_align );
ELFIO_GET_SET_ACCESS( Elf64_Addr, virtual_address, ph.p_vaddr );
ELFIO_GET_SET_ACCESS( Elf64_Addr, physical_address, ph.p_paddr );
ELFIO_GET_SET_ACCESS( Elf_Xword, file_size, ph.p_filesz );
ELFIO_GET_SET_ACCESS( Elf_Xword, memory_size, ph.p_memsz );
ELFIO_GET_ACCESS( Elf64_Off, offset, ph.p_offset );
size_t stream_size;
//------------------------------------------------------------------------------
size_t get_stream_size() const { return stream_size; }
//------------------------------------------------------------------------------
void set_stream_size( size_t value ) { stream_size = value; }
//------------------------------------------------------------------------------
Elf_Half get_index() const { return index; }
//------------------------------------------------------------------------------
const char* get_data() const { return data; }
//------------------------------------------------------------------------------
Elf_Half add_section_index( Elf_Half sec_index, Elf_Xword addr_align )
{
sections.push_back( sec_index );
if ( addr_align > get_align() ) {
set_align( addr_align );
}
return (Elf_Half)sections.size();
}
//------------------------------------------------------------------------------
Elf_Half get_sections_num() const { return (Elf_Half)sections.size(); }
//------------------------------------------------------------------------------
Elf_Half get_section_index_at( Elf_Half num ) const
{
if ( num < sections.size() ) {
return sections[num];
}
return Elf_Half( -1 );
}
//------------------------------------------------------------------------------
protected:
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
void set_offset( Elf64_Off value )
{
ph.p_offset = value;
ph.p_offset = ( *convertor )( ph.p_offset );
is_offset_set = true;
}
//------------------------------------------------------------------------------
bool is_offset_initialized() const { return is_offset_set; }
//------------------------------------------------------------------------------
const std::vector<Elf_Half>& get_sections() const { return sections; }
//------------------------------------------------------------------------------
void set_index( Elf_Half value ) { index = value; }
//------------------------------------------------------------------------------
void load( std::istream& stream, std::streampos header_offset )
{
stream.seekg( 0, stream.end );
set_stream_size( stream.tellg() );
stream.seekg( header_offset );
stream.read( reinterpret_cast<char*>( &ph ), sizeof( ph ) );
is_offset_set = true;
if ( PT_NULL != get_type() && 0 != get_file_size() ) {
stream.seekg( ( *convertor )( ph.p_offset ) );
Elf_Xword size = get_file_size();
if ( size > get_stream_size() ) {
data = 0;
}
else {
data = new (std::nothrow) char[size + 1];
if ( 0 != data ) {
stream.read( data, size );
data[size] = 0;
}
}
}
}
//------------------------------------------------------------------------------
void save( std::ostream& stream,
std::streampos header_offset,
std::streampos data_offset )
{
ph.p_offset = data_offset;
ph.p_offset = ( *convertor )( ph.p_offset );
stream.seekp( header_offset );
stream.write( reinterpret_cast<const char*>( &ph ), sizeof( ph ) );
}
//------------------------------------------------------------------------------
private:
T ph;
Elf_Half index;
char* data;
std::vector<Elf_Half> sections;
endianess_convertor* convertor;
bool is_offset_set;
};
} // namespace ELFIO
#endif // ELFIO_SEGMENT_HPP
/*** End of inlined file: elfio_segment.hpp ***/
/*** Start of inlined file: elfio_strings.hpp ***/
#ifndef ELFIO_STRINGS_HPP
#define ELFIO_STRINGS_HPP
#include <cstdlib>
#include <cstring>
#include <string>
namespace ELFIO {
//------------------------------------------------------------------------------
template <class S> class string_section_accessor_template
{
public:
//------------------------------------------------------------------------------
string_section_accessor_template( S* section_ ) : string_section( section_ )
{
}
//------------------------------------------------------------------------------
const char* get_string( Elf_Word index ) const
{
if ( string_section ) {
if ( index < string_section->get_size() ) {
const char* data = string_section->get_data();
if ( 0 != data ) {
return data + index;
}
}
}
return 0;
}
//------------------------------------------------------------------------------
Elf_Word add_string( const char* str )
{
Elf_Word current_position = 0;
if ( string_section ) {
// Strings are addeded to the end of the current section data
current_position = (Elf_Word)string_section->get_size();
if ( current_position == 0 ) {
char empty_string = '\0';
string_section->append_data( &empty_string, 1 );
current_position++;
}
string_section->append_data( str,
(Elf_Word)std::strlen( str ) + 1 );
}
return current_position;
}
//------------------------------------------------------------------------------
Elf_Word add_string( const std::string& str )
{
return add_string( str.c_str() );
}
//------------------------------------------------------------------------------
private:
S* string_section;
};
using string_section_accessor = string_section_accessor_template<section>;
using const_string_section_accessor =
string_section_accessor_template<const section>;
} // namespace ELFIO
#endif // ELFIO_STRINGS_HPP
/*** End of inlined file: elfio_strings.hpp ***/
#define ELFIO_HEADER_ACCESS_GET( TYPE, FNAME ) \
TYPE get_##FNAME() const { return header ? ( header->get_##FNAME() ) : 0; }
#define ELFIO_HEADER_ACCESS_GET_SET( TYPE, FNAME ) \
TYPE get_##FNAME() const \
{ \
return header ? ( header->get_##FNAME() ) : 0; \
} \
void set_##FNAME( TYPE val ) \
{ \
if ( header ) { \
header->set_##FNAME( val ); \
} \
}
namespace ELFIO {
//------------------------------------------------------------------------------
class elfio
{
public:
//------------------------------------------------------------------------------
elfio() : sections( this ), segments( this )
{
header = 0;
current_file_pos = 0;
create( ELFCLASS32, ELFDATA2LSB );
}
//------------------------------------------------------------------------------
~elfio() { clean(); }
//------------------------------------------------------------------------------
void create( unsigned char file_class, unsigned char encoding )
{
clean();
convertor.setup( encoding );
header = create_header( file_class, encoding );
create_mandatory_sections();
}
//------------------------------------------------------------------------------
bool load( const std::string& file_name )
{
std::ifstream stream;
stream.open( file_name.c_str(), std::ios::in | std::ios::binary );
if ( !stream ) {
return false;
}
return load( stream );
}
//------------------------------------------------------------------------------
bool load( std::istream& stream )
{
clean();
unsigned char e_ident[EI_NIDENT];
// Read ELF file signature
stream.read( reinterpret_cast<char*>( &e_ident ), sizeof( e_ident ) );
// Is it ELF file?
if ( stream.gcount() != sizeof( e_ident ) ||
e_ident[EI_MAG0] != ELFMAG0 || e_ident[EI_MAG1] != ELFMAG1 ||
e_ident[EI_MAG2] != ELFMAG2 || e_ident[EI_MAG3] != ELFMAG3 ) {
return false;
}
if ( ( e_ident[EI_CLASS] != ELFCLASS64 ) &&
( e_ident[EI_CLASS] != ELFCLASS32 ) ) {
return false;
}
convertor.setup( e_ident[EI_DATA] );
header = create_header( e_ident[EI_CLASS], e_ident[EI_DATA] );
if ( 0 == header ) {
return false;
}
if ( !header->load( stream ) ) {
return false;
}
load_sections( stream );
bool is_still_good = load_segments( stream );
return is_still_good;
}
//------------------------------------------------------------------------------
bool save( const std::string& file_name )
{
std::ofstream stream;
stream.open( file_name.c_str(), std::ios::out | std::ios::binary );
if ( !stream ) {
return false;
}
return save( stream );
}
//------------------------------------------------------------------------------
bool save( std::ostream& stream )
{
if ( !stream || !header ) {
return false;
}
bool is_still_good = true;
// Define layout specific header fields
// The position of the segment table is fixed after the header.
// The position of the section table is variable and needs to be fixed
// before saving.
header->set_segments_num( segments.size() );
header->set_segments_offset( segments.size() ? header->get_header_size()
: 0 );
header->set_sections_num( sections.size() );
header->set_sections_offset( 0 );
// Layout the first section right after the segment table
current_file_pos = header->get_header_size() +
header->get_segment_entry_size() *
(Elf_Xword)header->get_segments_num();
calc_segment_alignment();
is_still_good = layout_segments_and_their_sections();
is_still_good = is_still_good && layout_sections_without_segments();
is_still_good = is_still_good && layout_section_table();
is_still_good = is_still_good && save_header( stream );
is_still_good = is_still_good && save_sections( stream );
is_still_good = is_still_good && save_segments( stream );
return is_still_good;
}
//------------------------------------------------------------------------------
// ELF header access functions
ELFIO_HEADER_ACCESS_GET( unsigned char, class );
ELFIO_HEADER_ACCESS_GET( unsigned char, elf_version );
ELFIO_HEADER_ACCESS_GET( unsigned char, encoding );
ELFIO_HEADER_ACCESS_GET( Elf_Word, version );
ELFIO_HEADER_ACCESS_GET( Elf_Half, header_size );
ELFIO_HEADER_ACCESS_GET( Elf_Half, section_entry_size );
ELFIO_HEADER_ACCESS_GET( Elf_Half, segment_entry_size );
ELFIO_HEADER_ACCESS_GET_SET( unsigned char, os_abi );
ELFIO_HEADER_ACCESS_GET_SET( unsigned char, abi_version );
ELFIO_HEADER_ACCESS_GET_SET( Elf_Half, type );
ELFIO_HEADER_ACCESS_GET_SET( Elf_Half, machine );
ELFIO_HEADER_ACCESS_GET_SET( Elf_Word, flags );
ELFIO_HEADER_ACCESS_GET_SET( Elf64_Addr, entry );
ELFIO_HEADER_ACCESS_GET_SET( Elf64_Off, sections_offset );
ELFIO_HEADER_ACCESS_GET_SET( Elf64_Off, segments_offset );
ELFIO_HEADER_ACCESS_GET_SET( Elf_Half, section_name_str_index );
//------------------------------------------------------------------------------
const endianess_convertor& get_convertor() const { return convertor; }
//------------------------------------------------------------------------------
Elf_Xword get_default_entry_size( Elf_Word section_type ) const
{
switch ( section_type ) {
case SHT_RELA:
if ( header->get_class() == ELFCLASS64 ) {
return sizeof( Elf64_Rela );
}
else {
return sizeof( Elf32_Rela );
}
case SHT_REL:
if ( header->get_class() == ELFCLASS64 ) {
return sizeof( Elf64_Rel );
}
else {
return sizeof( Elf32_Rel );
}
case SHT_SYMTAB:
if ( header->get_class() == ELFCLASS64 ) {
return sizeof( Elf64_Sym );
}
else {
return sizeof( Elf32_Sym );
}
case SHT_DYNAMIC:
if ( header->get_class() == ELFCLASS64 ) {
return sizeof( Elf64_Dyn );
}
else {
return sizeof( Elf32_Dyn );
}
default:
return 0;
}
}
//------------------------------------------------------------------------------
private:
bool is_offset_in_section( Elf64_Off offset, const section* sec ) const
{
return ( offset >= sec->get_offset() ) &&
( offset < ( sec->get_offset() + sec->get_size() ) );
}
//------------------------------------------------------------------------------
public:
//! returns an empty string if no problems are detected,
//! or a string containing an error message if problems are found
std::string validate() const
{
// check for overlapping sections in the file
for ( int i = 0; i < sections.size(); ++i ) {
for ( int j = i + 1; j < sections.size(); ++j ) {
const section* a = sections[i];
const section* b = sections[j];
if ( !( a->get_type() & SHT_NOBITS ) &&
!( b->get_type() & SHT_NOBITS ) && ( a->get_size() > 0 ) &&
( b->get_size() > 0 ) && ( a->get_offset() > 0 ) &&
( b->get_offset() > 0 ) ) {
if ( is_offset_in_section( a->get_offset(), b ) ||
is_offset_in_section(
a->get_offset() + a->get_size() - 1, b ) ||
is_offset_in_section( b->get_offset(), a ) ||
is_offset_in_section(
b->get_offset() + b->get_size() - 1, a ) ) {
return "Sections " + a->get_name() + " and " +
b->get_name() + " overlap in file";
}
}
}
}
// more checks to be added here...
return "";
}
//------------------------------------------------------------------------------
private:
//------------------------------------------------------------------------------
void clean()
{
delete header;
header = 0;
std::vector<section*>::const_iterator it;
for ( it = sections_.begin(); it != sections_.end(); ++it ) {
delete *it;
}
sections_.clear();
std::vector<segment*>::const_iterator it1;
for ( it1 = segments_.begin(); it1 != segments_.end(); ++it1 ) {
delete *it1;
}
segments_.clear();
}
//------------------------------------------------------------------------------
elf_header* create_header( unsigned char file_class,
unsigned char encoding )
{
elf_header* new_header = 0;
if ( file_class == ELFCLASS64 ) {
new_header =
new elf_header_impl<Elf64_Ehdr>( &convertor, encoding );
}
else if ( file_class == ELFCLASS32 ) {
new_header =
new elf_header_impl<Elf32_Ehdr>( &convertor, encoding );
}
else {
return 0;
}
return new_header;
}
//------------------------------------------------------------------------------
section* create_section()
{
section* new_section;
unsigned char file_class = get_class();
if ( file_class == ELFCLASS64 ) {
new_section = new section_impl<Elf64_Shdr>( &convertor );
}
else if ( file_class == ELFCLASS32 ) {
new_section = new section_impl<Elf32_Shdr>( &convertor );
}
else {
return 0;
}
new_section->set_index( (Elf_Half)sections_.size() );
sections_.push_back( new_section );
return new_section;
}
//------------------------------------------------------------------------------
segment* create_segment()
{
segment* new_segment;
unsigned char file_class = header->get_class();
if ( file_class == ELFCLASS64 ) {
new_segment = new segment_impl<Elf64_Phdr>( &convertor );
}
else if ( file_class == ELFCLASS32 ) {
new_segment = new segment_impl<Elf32_Phdr>( &convertor );
}
else {
return 0;
}
new_segment->set_index( (Elf_Half)segments_.size() );
segments_.push_back( new_segment );
return new_segment;
}
//------------------------------------------------------------------------------
void create_mandatory_sections()
{
// Create null section without calling to 'add_section' as no string
// section containing section names exists yet
section* sec0 = create_section();
sec0->set_index( 0 );
sec0->set_name( "" );
sec0->set_name_string_offset( 0 );
set_section_name_str_index( 1 );
section* shstrtab = sections.add( ".shstrtab" );
shstrtab->set_type( SHT_STRTAB );
shstrtab->set_addr_align( 1 );
}
//------------------------------------------------------------------------------
Elf_Half load_sections( std::istream& stream )
{
Elf_Half entry_size = header->get_section_entry_size();
Elf_Half num = header->get_sections_num();
Elf64_Off offset = header->get_sections_offset();
for ( Elf_Half i = 0; i < num; ++i ) {
section* sec = create_section();
sec->load( stream, (std::streamoff)offset +
(std::streampos)i * entry_size );
sec->set_index( i );
// To mark that the section is not permitted to reassign address
// during layout calculation
sec->set_address( sec->get_address() );
}
Elf_Half shstrndx = get_section_name_str_index();
if ( SHN_UNDEF != shstrndx ) {
string_section_accessor str_reader( sections[shstrndx] );
for ( Elf_Half i = 0; i < num; ++i ) {
Elf_Word section_offset = sections[i]->get_name_string_offset();
const char* p = str_reader.get_string( section_offset );
if ( p != 0 ) {
sections[i]->set_name( p );
}
}
}
return num;
}
//------------------------------------------------------------------------------
//! Checks whether the addresses of the section entirely fall within the given segment.
//! It doesn't matter if the addresses are memory addresses, or file offsets,
//! they just need to be in the same address space
bool is_sect_in_seg( Elf64_Off sect_begin,
Elf_Xword sect_size,
Elf64_Off seg_begin,
Elf64_Off seg_end )
{
return ( seg_begin <= sect_begin ) &&
( sect_begin + sect_size <= seg_end ) &&
( sect_begin <
seg_end ); // this is important criteria when sect_size == 0
// Example: seg_begin=10, seg_end=12 (-> covering the bytes 10 and 11)
// sect_begin=12, sect_size=0 -> shall return false!
}
//------------------------------------------------------------------------------
bool load_segments( std::istream& stream )
{
Elf_Half entry_size = header->get_segment_entry_size();
Elf_Half num = header->get_segments_num();
Elf64_Off offset = header->get_segments_offset();
for ( Elf_Half i = 0; i < num; ++i ) {
segment* seg;
unsigned char file_class = header->get_class();
if ( file_class == ELFCLASS64 ) {
seg = new segment_impl<Elf64_Phdr>( &convertor );
}
else if ( file_class == ELFCLASS32 ) {
seg = new segment_impl<Elf32_Phdr>( &convertor );
}
else {
return false;
}
seg->load( stream, (std::streamoff)offset +
(std::streampos)i * entry_size );
seg->set_index( i );
// Add sections to the segments (similar to readelfs algorithm)
Elf64_Off segBaseOffset = seg->get_offset();
Elf64_Off segEndOffset = segBaseOffset + seg->get_file_size();
Elf64_Off segVBaseAddr = seg->get_virtual_address();
Elf64_Off segVEndAddr = segVBaseAddr + seg->get_memory_size();
for ( Elf_Half j = 0; j < sections.size(); ++j ) {
const section* psec = sections[j];
// SHF_ALLOC sections are matched based on the virtual address
// otherwise the file offset is matched
if ( ( psec->get_flags() & SHF_ALLOC )
? is_sect_in_seg( psec->get_address(),
psec->get_size(), segVBaseAddr,
segVEndAddr )
: is_sect_in_seg( psec->get_offset(), psec->get_size(),
segBaseOffset, segEndOffset ) ) {
// Alignment of segment shall not be updated, to preserve original value
// It will be re-calculated on saving.
seg->add_section_index( psec->get_index(), 0 );
}
}
// Add section into the segments' container
segments_.push_back( seg );
}
return true;
}
//------------------------------------------------------------------------------
bool save_header( std::ostream& stream ) { return header->save( stream ); }
//------------------------------------------------------------------------------
bool save_sections( std::ostream& stream )
{
for ( unsigned int i = 0; i < sections_.size(); ++i ) {
section* sec = sections_.at( i );
std::streampos headerPosition =
(std::streamoff)header->get_sections_offset() +
(std::streampos)header->get_section_entry_size() *
sec->get_index();
sec->save( stream, headerPosition, sec->get_offset() );
}
return true;
}
//------------------------------------------------------------------------------
bool save_segments( std::ostream& stream )
{
for ( unsigned int i = 0; i < segments_.size(); ++i ) {
segment* seg = segments_.at( i );
std::streampos headerPosition =
header->get_segments_offset() +
(std::streampos)header->get_segment_entry_size() *
seg->get_index();
seg->save( stream, headerPosition, seg->get_offset() );
}
return true;
}
//------------------------------------------------------------------------------
bool is_section_without_segment( unsigned int section_index )
{
bool found = false;
for ( unsigned int j = 0; !found && ( j < segments.size() ); ++j ) {
for ( unsigned int k = 0;
!found && ( k < segments[j]->get_sections_num() ); ++k ) {
found = segments[j]->get_section_index_at( k ) == section_index;
}
}
return !found;
}
//------------------------------------------------------------------------------
bool is_subsequence_of( segment* seg1, segment* seg2 )
{
// Return 'true' if sections of seg1 are a subset of sections in seg2
const std::vector<Elf_Half>& sections1 = seg1->get_sections();
const std::vector<Elf_Half>& sections2 = seg2->get_sections();
bool found = false;
if ( sections1.size() < sections2.size() ) {
found = std::includes( sections2.begin(), sections2.end(),
sections1.begin(), sections1.end() );
}
return found;
}
//------------------------------------------------------------------------------
std::vector<segment*> get_ordered_segments()
{
std::vector<segment*> res;
std::deque<segment*> worklist;
res.reserve( segments.size() );
std::copy( segments_.begin(), segments_.end(),
std::back_inserter( worklist ) );
// Bring the segments which start at address 0 to the front
size_t nextSlot = 0;
for ( size_t i = 0; i < worklist.size(); ++i ) {
if ( i != nextSlot && worklist[i]->is_offset_initialized() &&
worklist[i]->get_offset() == 0 ) {
if ( worklist[nextSlot]->get_offset() == 0 ) {
++nextSlot;
}
std::swap( worklist[i], worklist[nextSlot] );
++nextSlot;
}
}
while ( !worklist.empty() ) {
segment* seg = worklist.front();
worklist.pop_front();
size_t i = 0;
for ( ; i < worklist.size(); ++i ) {
if ( is_subsequence_of( seg, worklist[i] ) ) {
break;
}
}
if ( i < worklist.size() )
worklist.push_back( seg );
else
res.push_back( seg );
}
return res;
}
//------------------------------------------------------------------------------
bool layout_sections_without_segments()
{
for ( unsigned int i = 0; i < sections_.size(); ++i ) {
if ( is_section_without_segment( i ) ) {
section* sec = sections_[i];
Elf_Xword section_align = sec->get_addr_align();
if ( section_align > 1 &&
current_file_pos % section_align != 0 ) {
current_file_pos +=
section_align - current_file_pos % section_align;
}
if ( 0 != sec->get_index() )
sec->set_offset( current_file_pos );
if ( SHT_NOBITS != sec->get_type() &&
SHT_NULL != sec->get_type() ) {
current_file_pos += sec->get_size();
}
}
}
return true;
}
//------------------------------------------------------------------------------
void calc_segment_alignment()
{
for ( std::vector<segment*>::iterator s = segments_.begin();
s != segments_.end(); ++s ) {
segment* seg = *s;
for ( int i = 0; i < seg->get_sections_num(); ++i ) {
section* sect = sections_[seg->get_section_index_at( i )];
if ( sect->get_addr_align() > seg->get_align() ) {
seg->set_align( sect->get_addr_align() );
}
}
}
}
//------------------------------------------------------------------------------
bool layout_segments_and_their_sections()
{
std::vector<segment*> worklist;
std::vector<bool> section_generated( sections.size(), false );
// Get segments in a order in where segments which contain a
// sub sequence of other segments are located at the end
worklist = get_ordered_segments();
for ( unsigned int i = 0; i < worklist.size(); ++i ) {
Elf_Xword segment_memory = 0;
Elf_Xword segment_filesize = 0;
Elf_Xword seg_start_pos = current_file_pos;
segment* seg = worklist[i];
// Special case: PHDR segment
// This segment contains the program headers but no sections
if ( seg->get_type() == PT_PHDR && seg->get_sections_num() == 0 ) {
seg_start_pos = header->get_segments_offset();
segment_memory = segment_filesize =
header->get_segment_entry_size() *
(Elf_Xword)header->get_segments_num();
}
// Special case:
else if ( seg->is_offset_initialized() && seg->get_offset() == 0 ) {
seg_start_pos = 0;
if ( seg->get_sections_num() ) {
segment_memory = segment_filesize = current_file_pos;
}
}
// New segments with not generated sections
// have to be aligned
else if ( seg->get_sections_num() &&
!section_generated[seg->get_section_index_at( 0 )] ) {
Elf_Xword align = seg->get_align() > 0 ? seg->get_align() : 1;
Elf64_Off cur_page_alignment = current_file_pos % align;
Elf64_Off req_page_alignment =
seg->get_virtual_address() % align;
Elf64_Off error = req_page_alignment - cur_page_alignment;
current_file_pos += ( seg->get_align() + error ) % align;
seg_start_pos = current_file_pos;
}
else if ( seg->get_sections_num() ) {
seg_start_pos =
sections[seg->get_section_index_at( 0 )]->get_offset();
}
// Write segment's data
for ( unsigned int j = 0; j < seg->get_sections_num(); ++j ) {
Elf_Half index = seg->get_section_index_at( j );
section* sec = sections[index];
// The NULL section is always generated
if ( SHT_NULL == sec->get_type() ) {
section_generated[index] = true;
continue;
}
Elf_Xword secAlign = 0;
// Fix up the alignment
if ( !section_generated[index] &&
sec->is_address_initialized() &&
SHT_NOBITS != sec->get_type() &&
SHT_NULL != sec->get_type() && 0 != sec->get_size() ) {
// Align the sections based on the virtual addresses
// when possible (this is what matters for execution)
Elf64_Off req_offset =
sec->get_address() - seg->get_virtual_address();
Elf64_Off cur_offset = current_file_pos - seg_start_pos;
if ( req_offset < cur_offset ) {
// something has gone awfully wrong, abort!
// secAlign would turn out negative, seeking backwards and overwriting previous data
return false;
}
secAlign = req_offset - cur_offset;
}
else if ( !section_generated[index] &&
!sec->is_address_initialized() ) {
// If no address has been specified then only the section
// alignment constraint has to be matched
Elf_Xword align = sec->get_addr_align();
if ( align == 0 ) {
align = 1;
}
Elf64_Off error = current_file_pos % align;
secAlign = ( align - error ) % align;
}
else if ( section_generated[index] ) {
// Alignment for already generated sections
secAlign =
sec->get_offset() - seg_start_pos - segment_filesize;
}
// Determine the segment file and memory sizes
// Special case .tbss section (NOBITS) in non TLS segment
if ( ( sec->get_flags() & SHF_ALLOC ) &&
!( ( sec->get_flags() & SHF_TLS ) &&
( seg->get_type() != PT_TLS ) &&
( SHT_NOBITS == sec->get_type() ) ) )
segment_memory += sec->get_size() + secAlign;
if ( SHT_NOBITS != sec->get_type() )
segment_filesize += sec->get_size() + secAlign;
// Nothing to be done when generating nested segments
if ( section_generated[index] ) {
continue;
}
current_file_pos += secAlign;
// Set the section addresses when missing
if ( !sec->is_address_initialized() )
sec->set_address( seg->get_virtual_address() +
current_file_pos - seg_start_pos );
if ( 0 != sec->get_index() )
sec->set_offset( current_file_pos );
if ( SHT_NOBITS != sec->get_type() )
current_file_pos += sec->get_size();
section_generated[index] = true;
}
seg->set_file_size( segment_filesize );
// If we already have a memory size from loading an elf file (value > 0),
// it must not shrink!
// Memory size may be bigger than file size and it is the loader's job to do something
// with the surplus bytes in memory, like initializing them with a defined value.
if ( seg->get_memory_size() < segment_memory ) {
seg->set_memory_size( segment_memory );
}
seg->set_offset( seg_start_pos );
}
return true;
}
//------------------------------------------------------------------------------
bool layout_section_table()
{
// Simply place the section table at the end for now
Elf64_Off alignmentError = current_file_pos % 4;
current_file_pos += ( 4 - alignmentError ) % 4;
header->set_sections_offset( current_file_pos );
return true;
}
//------------------------------------------------------------------------------
public:
friend class Sections;
class Sections
{
public:
//------------------------------------------------------------------------------
Sections( elfio* parent_ ) : parent( parent_ ) {}
//------------------------------------------------------------------------------
Elf_Half size() const { return (Elf_Half)parent->sections_.size(); }
//------------------------------------------------------------------------------
section* operator[]( unsigned int index ) const
{
section* sec = 0;
if ( index < parent->sections_.size() ) {
sec = parent->sections_[index];
}
return sec;
}
//------------------------------------------------------------------------------
section* operator[]( const std::string& name ) const
{
section* sec = 0;
std::vector<section*>::const_iterator it;
for ( it = parent->sections_.begin(); it != parent->sections_.end();
++it ) {
if ( ( *it )->get_name() == name ) {
sec = *it;
break;
}
}
return sec;
}
//------------------------------------------------------------------------------
section* add( const std::string& name )
{
section* new_section = parent->create_section();
new_section->set_name( name );
Elf_Half str_index = parent->get_section_name_str_index();
section* string_table( parent->sections_[str_index] );
string_section_accessor str_writer( string_table );
Elf_Word pos = str_writer.add_string( name );
new_section->set_name_string_offset( pos );
return new_section;
}
//------------------------------------------------------------------------------
std::vector<section*>::iterator begin()
{
return parent->sections_.begin();
}
//------------------------------------------------------------------------------
std::vector<section*>::iterator end()
{
return parent->sections_.end();
}
//------------------------------------------------------------------------------
std::vector<section*>::const_iterator begin() const
{
return parent->sections_.cbegin();
}
//------------------------------------------------------------------------------
std::vector<section*>::const_iterator end() const
{
return parent->sections_.cend();
}
//------------------------------------------------------------------------------
private:
elfio* parent;
} sections;
//------------------------------------------------------------------------------
public:
friend class Segments;
class Segments
{
public:
//------------------------------------------------------------------------------
Segments( elfio* parent_ ) : parent( parent_ ) {}
//------------------------------------------------------------------------------
Elf_Half size() const { return (Elf_Half)parent->segments_.size(); }
//------------------------------------------------------------------------------
segment* operator[]( unsigned int index ) const
{
return parent->segments_[index];
}
//------------------------------------------------------------------------------
segment* add() { return parent->create_segment(); }
//------------------------------------------------------------------------------
std::vector<segment*>::iterator begin()
{
return parent->segments_.begin();
}
//------------------------------------------------------------------------------
std::vector<segment*>::iterator end()
{
return parent->segments_.end();
}
//------------------------------------------------------------------------------
std::vector<segment*>::const_iterator begin() const
{
return parent->segments_.cbegin();
}
//------------------------------------------------------------------------------
std::vector<segment*>::const_iterator end() const
{
return parent->segments_.cend();
}
//------------------------------------------------------------------------------
private:
elfio* parent;
} segments;
//------------------------------------------------------------------------------
private:
elf_header* header;
std::vector<section*> sections_;
std::vector<segment*> segments_;
endianess_convertor convertor;
Elf_Xword current_file_pos;
};
} // namespace ELFIO
/*** Start of inlined file: elfio_symbols.hpp ***/
#ifndef ELFIO_SYMBOLS_HPP
#define ELFIO_SYMBOLS_HPP
namespace ELFIO {
//------------------------------------------------------------------------------
template <class S> class symbol_section_accessor_template
{
public:
//------------------------------------------------------------------------------
symbol_section_accessor_template( const elfio& elf_file_,
S* symbol_section_ )
: elf_file( elf_file_ ), symbol_section( symbol_section_ )
{
find_hash_section();
}
//------------------------------------------------------------------------------
Elf_Xword get_symbols_num() const
{
Elf_Xword nRet = 0;
if ( 0 != symbol_section->get_entry_size() ) {
nRet =
symbol_section->get_size() / symbol_section->get_entry_size();
}
return nRet;
}
//------------------------------------------------------------------------------
bool get_symbol( Elf_Xword index,
std::string& name,
Elf64_Addr& value,
Elf_Xword& size,
unsigned char& bind,
unsigned char& type,
Elf_Half& section_index,
unsigned char& other ) const
{
bool ret = false;
if ( elf_file.get_class() == ELFCLASS32 ) {
ret = generic_get_symbol<Elf32_Sym>( index, name, value, size, bind,
type, section_index, other );
}
else {
ret = generic_get_symbol<Elf64_Sym>( index, name, value, size, bind,
type, section_index, other );
}
return ret;
}
//------------------------------------------------------------------------------
bool get_symbol( const std::string& name,
Elf64_Addr& value,
Elf_Xword& size,
unsigned char& bind,
unsigned char& type,
Elf_Half& section_index,
unsigned char& other ) const
{
bool ret = false;
if ( 0 != get_hash_table_index() ) {
Elf_Word nbucket = *(const Elf_Word*)hash_section->get_data();
Elf_Word nchain = *(const Elf_Word*)( hash_section->get_data() +
sizeof( Elf_Word ) );
Elf_Word val = elf_hash( (const unsigned char*)name.c_str() );
Elf_Word y = *(const Elf_Word*)( hash_section->get_data() +
( 2 + val % nbucket ) *
sizeof( Elf_Word ) );
std::string str;
get_symbol( y, str, value, size, bind, type, section_index, other );
while ( str != name && STN_UNDEF != y && y < nchain ) {
y = *(const Elf_Word*)( hash_section->get_data() +
( 2 + nbucket + y ) *
sizeof( Elf_Word ) );
get_symbol( y, str, value, size, bind, type, section_index,
other );
}
if ( str == name ) {
ret = true;
}
}
else {
for ( Elf_Xword i = 0; i < get_symbols_num() && !ret; i++ ) {
std::string symbol_name;
if ( get_symbol( i, symbol_name, value, size, bind, type,
section_index, other ) ) {
if ( symbol_name == name ) {
ret = true;
}
}
}
}
return ret;
}
//------------------------------------------------------------------------------
bool get_symbol( const Elf64_Addr& value,
std::string& name,
Elf_Xword& size,
unsigned char& bind,
unsigned char& type,
Elf_Half& section_index,
unsigned char& other ) const
{
const endianess_convertor& convertor = elf_file.get_convertor();
Elf_Xword idx = 0;
bool match = false;
Elf64_Addr v = 0;
if ( elf_file.get_class() == ELFCLASS32 ) {
match = generic_search_symbols<Elf32_Sym>(
[&]( const Elf32_Sym* sym ) {
return convertor( sym->st_value ) == value;
},
idx );
}
else {
match = generic_search_symbols<Elf64_Sym>(
[&]( const Elf64_Sym* sym ) {
return convertor( sym->st_value ) == value;
},
idx );
}
if ( match ) {
return get_symbol( idx, name, v, size, bind, type, section_index,
other );
}
return false;
}
//------------------------------------------------------------------------------
Elf_Word add_symbol( Elf_Word name,
Elf64_Addr value,
Elf_Xword size,
unsigned char info,
unsigned char other,
Elf_Half shndx )
{
Elf_Word nRet;
if ( symbol_section->get_size() == 0 ) {
if ( elf_file.get_class() == ELFCLASS32 ) {
nRet = generic_add_symbol<Elf32_Sym>( 0, 0, 0, 0, 0, 0 );
}
else {
nRet = generic_add_symbol<Elf64_Sym>( 0, 0, 0, 0, 0, 0 );
}
}
if ( elf_file.get_class() == ELFCLASS32 ) {
nRet = generic_add_symbol<Elf32_Sym>( name, value, size, info,
other, shndx );
}
else {
nRet = generic_add_symbol<Elf64_Sym>( name, value, size, info,
other, shndx );
}
return nRet;
}
//------------------------------------------------------------------------------
Elf_Word add_symbol( Elf_Word name,
Elf64_Addr value,
Elf_Xword size,
unsigned char bind,
unsigned char type,
unsigned char other,
Elf_Half shndx )
{
return add_symbol( name, value, size, ELF_ST_INFO( bind, type ), other,
shndx );
}
//------------------------------------------------------------------------------
Elf_Word add_symbol( string_section_accessor& pStrWriter,
const char* str,
Elf64_Addr value,
Elf_Xword size,
unsigned char info,
unsigned char other,
Elf_Half shndx )
{
Elf_Word index = pStrWriter.add_string( str );
return add_symbol( index, value, size, info, other, shndx );
}
//------------------------------------------------------------------------------
Elf_Word add_symbol( string_section_accessor& pStrWriter,
const char* str,
Elf64_Addr value,
Elf_Xword size,
unsigned char bind,
unsigned char type,
unsigned char other,
Elf_Half shndx )
{
return add_symbol( pStrWriter, str, value, size,
ELF_ST_INFO( bind, type ), other, shndx );
}
//------------------------------------------------------------------------------
Elf_Xword arrange_local_symbols(
std::function<void( Elf_Xword first, Elf_Xword second )> func =
nullptr )
{
int nRet = 0;
if ( elf_file.get_class() == ELFCLASS32 ) {
nRet = generic_arrange_local_symbols<Elf32_Sym>( func );
}
else {
nRet = generic_arrange_local_symbols<Elf64_Sym>( func );
}
return nRet;
}
//------------------------------------------------------------------------------
private:
//------------------------------------------------------------------------------
void find_hash_section()
{
hash_section = 0;
hash_section_index = 0;
Elf_Half nSecNo = elf_file.sections.size();
for ( Elf_Half i = 0; i < nSecNo && 0 == hash_section_index; ++i ) {
const section* sec = elf_file.sections[i];
if ( sec->get_link() == symbol_section->get_index() ) {
hash_section = sec;
hash_section_index = i;
}
}
}
//------------------------------------------------------------------------------
Elf_Half get_string_table_index() const
{
return (Elf_Half)symbol_section->get_link();
}
//------------------------------------------------------------------------------
Elf_Half get_hash_table_index() const { return hash_section_index; }
//------------------------------------------------------------------------------
template <class T> const T* generic_get_symbol_ptr( Elf_Xword index ) const
{
if ( 0 != symbol_section->get_data() && index < get_symbols_num() ) {
const T* pSym = reinterpret_cast<const T*>(
symbol_section->get_data() +
index * symbol_section->get_entry_size() );
return pSym;
}
return nullptr;
}
//------------------------------------------------------------------------------
template <class T>
bool generic_search_symbols( std::function<bool( const T* )> match,
Elf_Xword& idx ) const
{
for ( Elf_Xword i = 0; i < get_symbols_num(); i++ ) {
const T* symPtr = generic_get_symbol_ptr<T>( i );
if ( symPtr == nullptr )
return false;
if ( match( symPtr ) ) {
idx = i;
return true;
}
}
return false;
}
//------------------------------------------------------------------------------
template <class T>
bool generic_get_symbol( Elf_Xword index,
std::string& name,
Elf64_Addr& value,
Elf_Xword& size,
unsigned char& bind,
unsigned char& type,
Elf_Half& section_index,
unsigned char& other ) const
{
bool ret = false;
if ( 0 != symbol_section->get_data() && index < get_symbols_num() ) {
const T* pSym = reinterpret_cast<const T*>(
symbol_section->get_data() +
index * symbol_section->get_entry_size() );
const endianess_convertor& convertor = elf_file.get_convertor();
section* string_section =
elf_file.sections[get_string_table_index()];
string_section_accessor str_reader( string_section );
const char* pStr =
str_reader.get_string( convertor( pSym->st_name ) );
if ( 0 != pStr ) {
name = pStr;
}
value = convertor( pSym->st_value );
size = convertor( pSym->st_size );
bind = ELF_ST_BIND( pSym->st_info );
type = ELF_ST_TYPE( pSym->st_info );
section_index = convertor( pSym->st_shndx );
other = pSym->st_other;
ret = true;
}
return ret;
}
//------------------------------------------------------------------------------
template <class T>
Elf_Word generic_add_symbol( Elf_Word name,
Elf64_Addr value,
Elf_Xword size,
unsigned char info,
unsigned char other,
Elf_Half shndx )
{
const endianess_convertor& convertor = elf_file.get_convertor();
T entry;
entry.st_name = convertor( name );
entry.st_value = value;
entry.st_value = convertor( entry.st_value );
entry.st_size = size;
entry.st_size = convertor( entry.st_size );
entry.st_info = convertor( info );
entry.st_other = convertor( other );
entry.st_shndx = convertor( shndx );
symbol_section->append_data( reinterpret_cast<char*>( &entry ),
sizeof( entry ) );
Elf_Word nRet = symbol_section->get_size() / sizeof( entry ) - 1;
return nRet;
}
//------------------------------------------------------------------------------
template <class T>
Elf_Xword generic_arrange_local_symbols(
std::function<void( Elf_Xword first, Elf_Xword second )> func )
{
const endianess_convertor& convertor = elf_file.get_convertor();
const Elf_Xword size = symbol_section->get_entry_size();
Elf_Xword first_not_local =
1; // Skip the first entry. It is always NOTYPE
Elf_Xword current = 0;
Elf_Xword count = get_symbols_num();
while ( true ) {
T* p1 = nullptr;
T* p2 = nullptr;
while ( first_not_local < count ) {
p1 = const_cast<T*>(
generic_get_symbol_ptr<T>( first_not_local ) );
if ( ELF_ST_BIND( convertor( p1->st_info ) ) != STB_LOCAL )
break;
++first_not_local;
}
current = first_not_local + 1;
while ( current < count ) {
p2 = const_cast<T*>( generic_get_symbol_ptr<T>( current ) );
if ( ELF_ST_BIND( convertor( p2->st_info ) ) == STB_LOCAL )
break;
++current;
}
if ( first_not_local < count && current < count ) {
if ( func )
func( first_not_local, current );
// Swap the symbols
T tmp;
std::copy( p1, p1 + 1, &tmp );
std::copy( p2, p2 + 1, p1 );
std::copy( &tmp, &tmp + 1, p2 );
}
else {
// Update 'info' field of the section
symbol_section->set_info( first_not_local );
break;
}
}
// Elf_Word nRet = symbol_section->get_size() / sizeof(entry) - 1;
return first_not_local;
}
//------------------------------------------------------------------------------
private:
const elfio& elf_file;
S* symbol_section;
Elf_Half hash_section_index;
const section* hash_section;
};
using symbol_section_accessor = symbol_section_accessor_template<section>;
using const_symbol_section_accessor =
symbol_section_accessor_template<const section>;
} // namespace ELFIO
#endif // ELFIO_SYMBOLS_HPP
/*** End of inlined file: elfio_symbols.hpp ***/
/*** Start of inlined file: elfio_note.hpp ***/
#ifndef ELFIO_NOTE_HPP
#define ELFIO_NOTE_HPP
namespace ELFIO {
//------------------------------------------------------------------------------
// There are discrepancies in documentations. SCO documentation
// (http://www.sco.com/developers/gabi/latest/ch5.pheader.html#note_section)
// requires 8 byte entries alignment for 64-bit ELF file,
// but Oracle's definition uses the same structure
// for 32-bit and 64-bit formats.
// (https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-18048.html)
//
// It looks like EM_X86_64 Linux implementation is similar to Oracle's
// definition. Therefore, the same alignment works for both formats
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
template <class S> class note_section_accessor_template
{
public:
//------------------------------------------------------------------------------
note_section_accessor_template( const elfio& elf_file_, S* section_ )
: elf_file( elf_file_ ), note_section( section_ )
{
process_section();
}
//------------------------------------------------------------------------------
Elf_Word get_notes_num() const
{
return (Elf_Word)note_start_positions.size();
}
//------------------------------------------------------------------------------
bool get_note( Elf_Word index,
Elf_Word& type,
std::string& name,
void*& desc,
Elf_Word& descSize ) const
{
if ( index >= note_section->get_size() ) {
return false;
}
const char* pData =
note_section->get_data() + note_start_positions[index];
int align = sizeof( Elf_Word );
const endianess_convertor& convertor = elf_file.get_convertor();
type = convertor( *(const Elf_Word*)( pData + 2 * align ) );
Elf_Word namesz = convertor( *(const Elf_Word*)( pData ) );
descSize = convertor( *(const Elf_Word*)( pData + sizeof( namesz ) ) );
Elf_Xword max_name_size =
note_section->get_size() - note_start_positions[index];
if ( namesz < 1 || namesz > max_name_size ||
(Elf_Xword)namesz + descSize > max_name_size ) {
return false;
}
name.assign( pData + 3 * align, namesz - 1 );
if ( 0 == descSize ) {
desc = 0;
}
else {
desc =
const_cast<char*>( pData + 3 * align +
( ( namesz + align - 1 ) / align ) * align );
}
return true;
}
//------------------------------------------------------------------------------
void add_note( Elf_Word type,
const std::string& name,
const void* desc,
Elf_Word descSize )
{
const endianess_convertor& convertor = elf_file.get_convertor();
int align = sizeof( Elf_Word );
Elf_Word nameLen = (Elf_Word)name.size() + 1;
Elf_Word nameLenConv = convertor( nameLen );
std::string buffer( reinterpret_cast<char*>( &nameLenConv ), align );
Elf_Word descSizeConv = convertor( descSize );
buffer.append( reinterpret_cast<char*>( &descSizeConv ), align );
type = convertor( type );
buffer.append( reinterpret_cast<char*>( &type ), align );
buffer.append( name );
buffer.append( 1, '\x00' );
const char pad[] = { '\0', '\0', '\0', '\0' };
if ( nameLen % align != 0 ) {
buffer.append( pad, align - nameLen % align );
}
if ( desc != 0 && descSize != 0 ) {
buffer.append( reinterpret_cast<const char*>( desc ), descSize );
if ( descSize % align != 0 ) {
buffer.append( pad, align - descSize % align );
}
}
note_start_positions.push_back( note_section->get_size() );
note_section->append_data( buffer );
}
private:
//------------------------------------------------------------------------------
void process_section()
{
const endianess_convertor& convertor = elf_file.get_convertor();
const char* data = note_section->get_data();
Elf_Xword size = note_section->get_size();
Elf_Xword current = 0;
note_start_positions.clear();
// Is it empty?
if ( 0 == data || 0 == size ) {
return;
}
Elf_Word align = sizeof( Elf_Word );
while ( current + (Elf_Xword)3 * align <= size ) {
note_start_positions.push_back( current );
Elf_Word namesz = convertor( *(const Elf_Word*)( data + current ) );
Elf_Word descsz = convertor(
*(const Elf_Word*)( data + current + sizeof( namesz ) ) );
current += (Elf_Xword)3 * sizeof( Elf_Word ) +
( ( namesz + align - 1 ) / align ) * (Elf_Xword)align +
( ( descsz + align - 1 ) / align ) * (Elf_Xword)align;
}
}
//------------------------------------------------------------------------------
private:
const elfio& elf_file;
S* note_section;
std::vector<Elf_Xword> note_start_positions;
};
using note_section_accessor = note_section_accessor_template<section>;
using const_note_section_accessor =
note_section_accessor_template<const section>;
} // namespace ELFIO
#endif // ELFIO_NOTE_HPP
/*** End of inlined file: elfio_note.hpp ***/
/*** Start of inlined file: elfio_relocation.hpp ***/
#ifndef ELFIO_RELOCATION_HPP
#define ELFIO_RELOCATION_HPP
namespace ELFIO {
template <typename T> struct get_sym_and_type;
template <> struct get_sym_and_type<Elf32_Rel>
{
static int get_r_sym( Elf_Xword info )
{
return ELF32_R_SYM( (Elf_Word)info );
}
static int get_r_type( Elf_Xword info )
{
return ELF32_R_TYPE( (Elf_Word)info );
}
};
template <> struct get_sym_and_type<Elf32_Rela>
{
static int get_r_sym( Elf_Xword info )
{
return ELF32_R_SYM( (Elf_Word)info );
}
static int get_r_type( Elf_Xword info )
{
return ELF32_R_TYPE( (Elf_Word)info );
}
};
template <> struct get_sym_and_type<Elf64_Rel>
{
static int get_r_sym( Elf_Xword info ) { return ELF64_R_SYM( info ); }
static int get_r_type( Elf_Xword info ) { return ELF64_R_TYPE( info ); }
};
template <> struct get_sym_and_type<Elf64_Rela>
{
static int get_r_sym( Elf_Xword info ) { return ELF64_R_SYM( info ); }
static int get_r_type( Elf_Xword info ) { return ELF64_R_TYPE( info ); }
};
//------------------------------------------------------------------------------
template <class S> class relocation_section_accessor_template
{
public:
//------------------------------------------------------------------------------
relocation_section_accessor_template( const elfio& elf_file_, S* section_ )
: elf_file( elf_file_ ), relocation_section( section_ )
{
}
//------------------------------------------------------------------------------
Elf_Xword get_entries_num() const
{
Elf_Xword nRet = 0;
if ( 0 != relocation_section->get_entry_size() ) {
nRet = relocation_section->get_size() /
relocation_section->get_entry_size();
}
return nRet;
}
//------------------------------------------------------------------------------
bool get_entry( Elf_Xword index,
Elf64_Addr& offset,
Elf_Word& symbol,
Elf_Word& type,
Elf_Sxword& addend ) const
{
if ( index >= get_entries_num() ) { // Is index valid
return false;
}
if ( elf_file.get_class() == ELFCLASS32 ) {
if ( SHT_REL == relocation_section->get_type() ) {
generic_get_entry_rel<Elf32_Rel>( index, offset, symbol, type,
addend );
}
else if ( SHT_RELA == relocation_section->get_type() ) {
generic_get_entry_rela<Elf32_Rela>( index, offset, symbol, type,
addend );
}
}
else {
if ( SHT_REL == relocation_section->get_type() ) {
generic_get_entry_rel<Elf64_Rel>( index, offset, symbol, type,
addend );
}
else if ( SHT_RELA == relocation_section->get_type() ) {
generic_get_entry_rela<Elf64_Rela>( index, offset, symbol, type,
addend );
}
}
return true;
}
//------------------------------------------------------------------------------
bool get_entry( Elf_Xword index,
Elf64_Addr& offset,
Elf64_Addr& symbolValue,
std::string& symbolName,
Elf_Word& type,
Elf_Sxword& addend,
Elf_Sxword& calcValue ) const
{
// Do regular job
Elf_Word symbol;
bool ret = get_entry( index, offset, symbol, type, addend );
// Find the symbol
Elf_Xword size;
unsigned char bind;
unsigned char symbolType;
Elf_Half section;
unsigned char other;
symbol_section_accessor symbols(
elf_file, elf_file.sections[get_symbol_table_index()] );
ret = ret && symbols.get_symbol( symbol, symbolName, symbolValue, size,
bind, symbolType, section, other );
if ( ret ) { // Was it successful?
switch ( type ) {
case R_386_NONE: // none
calcValue = 0;
break;
case R_386_32: // S + A
calcValue = symbolValue + addend;
break;
case R_386_PC32: // S + A - P
calcValue = symbolValue + addend - offset;
break;
case R_386_GOT32: // G + A - P
calcValue = 0;
break;
case R_386_PLT32: // L + A - P
calcValue = 0;
break;
case R_386_COPY: // none
calcValue = 0;
break;
case R_386_GLOB_DAT: // S
case R_386_JMP_SLOT: // S
calcValue = symbolValue;
break;
case R_386_RELATIVE: // B + A
calcValue = addend;
break;
case R_386_GOTOFF: // S + A - GOT
calcValue = 0;
break;
case R_386_GOTPC: // GOT + A - P
calcValue = 0;
break;
default: // Not recognized symbol!
calcValue = 0;
break;
}
}
return ret;
}
//------------------------------------------------------------------------------
bool set_entry( Elf_Xword index,
Elf64_Addr offset,
Elf_Word symbol,
Elf_Word type,
Elf_Sxword addend )
{
if ( index >= get_entries_num() ) { // Is index valid
return false;
}
if ( elf_file.get_class() == ELFCLASS32 ) {
if ( SHT_REL == relocation_section->get_type() ) {
generic_set_entry_rel<Elf32_Rel>( index, offset, symbol, type,
addend );
}
else if ( SHT_RELA == relocation_section->get_type() ) {
generic_set_entry_rela<Elf32_Rela>( index, offset, symbol, type,
addend );
}
}
else {
if ( SHT_REL == relocation_section->get_type() ) {
generic_set_entry_rel<Elf64_Rel>( index, offset, symbol, type,
addend );
}
else if ( SHT_RELA == relocation_section->get_type() ) {
generic_set_entry_rela<Elf64_Rela>( index, offset, symbol, type,
addend );
}
}
return true;
}
//------------------------------------------------------------------------------
void add_entry( Elf64_Addr offset, Elf_Xword info )
{
if ( elf_file.get_class() == ELFCLASS32 ) {
generic_add_entry<Elf32_Rel>( offset, info );
}
else {
generic_add_entry<Elf64_Rel>( offset, info );
}
}
//------------------------------------------------------------------------------
void add_entry( Elf64_Addr offset, Elf_Word symbol, unsigned char type )
{
Elf_Xword info;
if ( elf_file.get_class() == ELFCLASS32 ) {
info = ELF32_R_INFO( (Elf_Xword)symbol, type );
}
else {
info = ELF64_R_INFO( (Elf_Xword)symbol, type );
}
add_entry( offset, info );
}
//------------------------------------------------------------------------------
void add_entry( Elf64_Addr offset, Elf_Xword info, Elf_Sxword addend )
{
if ( elf_file.get_class() == ELFCLASS32 ) {
generic_add_entry<Elf32_Rela>( offset, info, addend );
}
else {
generic_add_entry<Elf64_Rela>( offset, info, addend );
}
}
//------------------------------------------------------------------------------
void add_entry( Elf64_Addr offset,
Elf_Word symbol,
unsigned char type,
Elf_Sxword addend )
{
Elf_Xword info;
if ( elf_file.get_class() == ELFCLASS32 ) {
info = ELF32_R_INFO( (Elf_Xword)symbol, type );
}
else {
info = ELF64_R_INFO( (Elf_Xword)symbol, type );
}
add_entry( offset, info, addend );
}
//------------------------------------------------------------------------------
void add_entry( string_section_accessor str_writer,
const char* str,
symbol_section_accessor sym_writer,
Elf64_Addr value,
Elf_Word size,
unsigned char sym_info,
unsigned char other,
Elf_Half shndx,
Elf64_Addr offset,
unsigned char type )
{
Elf_Word str_index = str_writer.add_string( str );
Elf_Word sym_index = sym_writer.add_symbol( str_index, value, size,
sym_info, other, shndx );
add_entry( offset, sym_index, type );
}
//------------------------------------------------------------------------------
void swap_symbols( Elf_Xword first, Elf_Xword second )
{
Elf64_Addr offset;
Elf_Word symbol;
Elf_Word rtype;
Elf_Sxword addend;
for ( Elf_Word i = 0; i < get_entries_num(); i++ ) {
get_entry( i, offset, symbol, rtype, addend );
if ( symbol == first ) {
set_entry( i, offset, (Elf_Word)second, rtype, addend );
}
if ( symbol == second ) {
set_entry( i, offset, (Elf_Word)first, rtype, addend );
}
}
}
//------------------------------------------------------------------------------
private:
//------------------------------------------------------------------------------
Elf_Half get_symbol_table_index() const
{
return (Elf_Half)relocation_section->get_link();
}
//------------------------------------------------------------------------------
template <class T>
void generic_get_entry_rel( Elf_Xword index,
Elf64_Addr& offset,
Elf_Word& symbol,
Elf_Word& type,
Elf_Sxword& addend ) const
{
const endianess_convertor& convertor = elf_file.get_convertor();
const T* pEntry = reinterpret_cast<const T*>(
relocation_section->get_data() +
index * relocation_section->get_entry_size() );
offset = convertor( pEntry->r_offset );
Elf_Xword tmp = convertor( pEntry->r_info );
symbol = get_sym_and_type<T>::get_r_sym( tmp );
type = get_sym_and_type<T>::get_r_type( tmp );
addend = 0;
}
//------------------------------------------------------------------------------
template <class T>
void generic_get_entry_rela( Elf_Xword index,
Elf64_Addr& offset,
Elf_Word& symbol,
Elf_Word& type,
Elf_Sxword& addend ) const
{
const endianess_convertor& convertor = elf_file.get_convertor();
const T* pEntry = reinterpret_cast<const T*>(
relocation_section->get_data() +
index * relocation_section->get_entry_size() );
offset = convertor( pEntry->r_offset );
Elf_Xword tmp = convertor( pEntry->r_info );
symbol = get_sym_and_type<T>::get_r_sym( tmp );
type = get_sym_and_type<T>::get_r_type( tmp );
addend = convertor( pEntry->r_addend );
}
//------------------------------------------------------------------------------
template <class T>
void generic_set_entry_rel( Elf_Xword index,
Elf64_Addr offset,
Elf_Word symbol,
Elf_Word type,
Elf_Sxword )
{
const endianess_convertor& convertor = elf_file.get_convertor();
T* pEntry = const_cast<T*>( reinterpret_cast<const T*>(
relocation_section->get_data() +
index * relocation_section->get_entry_size() ) );
if ( elf_file.get_class() == ELFCLASS32 ) {
pEntry->r_info = ELF32_R_INFO( (Elf_Xword)symbol, type );
}
else {
pEntry->r_info = ELF64_R_INFO( (Elf_Xword)symbol, type );
}
pEntry->r_offset = offset;
pEntry->r_offset = convertor( pEntry->r_offset );
pEntry->r_info = convertor( pEntry->r_info );
}
//------------------------------------------------------------------------------
template <class T>
void generic_set_entry_rela( Elf_Xword index,
Elf64_Addr offset,
Elf_Word symbol,
Elf_Word type,
Elf_Sxword addend )
{
const endianess_convertor& convertor = elf_file.get_convertor();
T* pEntry = const_cast<T*>( reinterpret_cast<const T*>(
relocation_section->get_data() +
index * relocation_section->get_entry_size() ) );
if ( elf_file.get_class() == ELFCLASS32 ) {
pEntry->r_info = ELF32_R_INFO( (Elf_Xword)symbol, type );
}
else {
pEntry->r_info = ELF64_R_INFO( (Elf_Xword)symbol, type );
}
pEntry->r_offset = offset;
pEntry->r_addend = addend;
pEntry->r_offset = convertor( pEntry->r_offset );
pEntry->r_info = convertor( pEntry->r_info );
pEntry->r_addend = convertor( pEntry->r_addend );
}
//------------------------------------------------------------------------------
template <class T>
void generic_add_entry( Elf64_Addr offset, Elf_Xword info )
{
const endianess_convertor& convertor = elf_file.get_convertor();
T entry;
entry.r_offset = offset;
entry.r_info = info;
entry.r_offset = convertor( entry.r_offset );
entry.r_info = convertor( entry.r_info );
relocation_section->append_data( reinterpret_cast<char*>( &entry ),
sizeof( entry ) );
}
//------------------------------------------------------------------------------
template <class T>
void
generic_add_entry( Elf64_Addr offset, Elf_Xword info, Elf_Sxword addend )
{
const endianess_convertor& convertor = elf_file.get_convertor();
T entry;
entry.r_offset = offset;
entry.r_info = info;
entry.r_addend = addend;
entry.r_offset = convertor( entry.r_offset );
entry.r_info = convertor( entry.r_info );
entry.r_addend = convertor( entry.r_addend );
relocation_section->append_data( reinterpret_cast<char*>( &entry ),
sizeof( entry ) );
}
//------------------------------------------------------------------------------
private:
const elfio& elf_file;
S* relocation_section;
};
using relocation_section_accessor =
relocation_section_accessor_template<section>;
using const_relocation_section_accessor =
relocation_section_accessor_template<const section>;
} // namespace ELFIO
#endif // ELFIO_RELOCATION_HPP
/*** End of inlined file: elfio_relocation.hpp ***/
/*** Start of inlined file: elfio_dynamic.hpp ***/
#ifndef ELFIO_DYNAMIC_HPP
#define ELFIO_DYNAMIC_HPP
namespace ELFIO {
//------------------------------------------------------------------------------
template <class S> class dynamic_section_accessor_template
{
public:
//------------------------------------------------------------------------------
dynamic_section_accessor_template( const elfio& elf_file_, S* section_ )
: elf_file( elf_file_ ), dynamic_section( section_ )
{
}
//------------------------------------------------------------------------------
Elf_Xword get_entries_num() const
{
Elf_Xword nRet = 0;
if ( 0 != dynamic_section->get_entry_size() ) {
nRet =
dynamic_section->get_size() / dynamic_section->get_entry_size();
}
return nRet;
}
//------------------------------------------------------------------------------
bool get_entry( Elf_Xword index,
Elf_Xword& tag,
Elf_Xword& value,
std::string& str ) const
{
if ( index >= get_entries_num() ) { // Is index valid
return false;
}
if ( elf_file.get_class() == ELFCLASS32 ) {
generic_get_entry_dyn<Elf32_Dyn>( index, tag, value );
}
else {
generic_get_entry_dyn<Elf64_Dyn>( index, tag, value );
}
// If the tag may have a string table reference, prepare the string
if ( tag == DT_NEEDED || tag == DT_SONAME || tag == DT_RPATH ||
tag == DT_RUNPATH ) {
string_section_accessor strsec =
elf_file.sections[get_string_table_index()];
const char* result = strsec.get_string( value );
if ( 0 == result ) {
str.clear();
return false;
}
str = result;
}
else {
str.clear();
}
return true;
}
//------------------------------------------------------------------------------
void add_entry( Elf_Xword tag, Elf_Xword value )
{
if ( elf_file.get_class() == ELFCLASS32 ) {
generic_add_entry<Elf32_Dyn>( tag, value );
}
else {
generic_add_entry<Elf64_Dyn>( tag, value );
}
}
//------------------------------------------------------------------------------
void add_entry( Elf_Xword tag, const std::string& str )
{
string_section_accessor strsec =
elf_file.sections[get_string_table_index()];
Elf_Xword value = strsec.add_string( str );
add_entry( tag, value );
}
//------------------------------------------------------------------------------
private:
//------------------------------------------------------------------------------
Elf_Half get_string_table_index() const
{
return (Elf_Half)dynamic_section->get_link();
}
//------------------------------------------------------------------------------
template <class T>
void generic_get_entry_dyn( Elf_Xword index,
Elf_Xword& tag,
Elf_Xword& value ) const
{
const endianess_convertor& convertor = elf_file.get_convertor();
// Check unusual case when dynamic section has no data
if ( dynamic_section->get_data() == 0 ||
( index + 1 ) * dynamic_section->get_entry_size() >
dynamic_section->get_size() ) {
tag = DT_NULL;
value = 0;
return;
}
const T* pEntry = reinterpret_cast<const T*>(
dynamic_section->get_data() +
index * dynamic_section->get_entry_size() );
tag = convertor( pEntry->d_tag );
switch ( tag ) {
case DT_NULL:
case DT_SYMBOLIC:
case DT_TEXTREL:
case DT_BIND_NOW:
value = 0;
break;
case DT_NEEDED:
case DT_PLTRELSZ:
case DT_RELASZ:
case DT_RELAENT:
case DT_STRSZ:
case DT_SYMENT:
case DT_SONAME:
case DT_RPATH:
case DT_RELSZ:
case DT_RELENT:
case DT_PLTREL:
case DT_INIT_ARRAYSZ:
case DT_FINI_ARRAYSZ:
case DT_RUNPATH:
case DT_FLAGS:
case DT_PREINIT_ARRAYSZ:
value = convertor( pEntry->d_un.d_val );
break;
case DT_PLTGOT:
case DT_HASH:
case DT_STRTAB:
case DT_SYMTAB:
case DT_RELA:
case DT_INIT:
case DT_FINI:
case DT_REL:
case DT_DEBUG:
case DT_JMPREL:
case DT_INIT_ARRAY:
case DT_FINI_ARRAY:
case DT_PREINIT_ARRAY:
default:
value = convertor( pEntry->d_un.d_ptr );
break;
}
}
//------------------------------------------------------------------------------
template <class T> void generic_add_entry( Elf_Xword tag, Elf_Xword value )
{
const endianess_convertor& convertor = elf_file.get_convertor();
T entry;
switch ( tag ) {
case DT_NULL:
case DT_SYMBOLIC:
case DT_TEXTREL:
case DT_BIND_NOW:
value = 0;
case DT_NEEDED:
case DT_PLTRELSZ:
case DT_RELASZ:
case DT_RELAENT:
case DT_STRSZ:
case DT_SYMENT:
case DT_SONAME:
case DT_RPATH:
case DT_RELSZ:
case DT_RELENT:
case DT_PLTREL:
case DT_INIT_ARRAYSZ:
case DT_FINI_ARRAYSZ:
case DT_RUNPATH:
case DT_FLAGS:
case DT_PREINIT_ARRAYSZ:
entry.d_un.d_val = convertor( value );
break;
case DT_PLTGOT:
case DT_HASH:
case DT_STRTAB:
case DT_SYMTAB:
case DT_RELA:
case DT_INIT:
case DT_FINI:
case DT_REL:
case DT_DEBUG:
case DT_JMPREL:
case DT_INIT_ARRAY:
case DT_FINI_ARRAY:
case DT_PREINIT_ARRAY:
default:
entry.d_un.d_ptr = convertor( value );
break;
}
entry.d_tag = convertor( tag );
dynamic_section->append_data( reinterpret_cast<char*>( &entry ),
sizeof( entry ) );
}
//------------------------------------------------------------------------------
private:
const elfio& elf_file;
S* dynamic_section;
};
using dynamic_section_accessor = dynamic_section_accessor_template<section>;
using const_dynamic_section_accessor =
dynamic_section_accessor_template<const section>;
} // namespace ELFIO
#endif // ELFIO_DYNAMIC_HPP
/*** End of inlined file: elfio_dynamic.hpp ***/
/*** Start of inlined file: elfio_modinfo.hpp ***/
#ifndef ELFIO_MODINFO_HPP
#define ELFIO_MODINFO_HPP
#include <string>
#include <vector>
namespace ELFIO {
//------------------------------------------------------------------------------
template <class S> class modinfo_section_accessor_template
{
public:
//------------------------------------------------------------------------------
modinfo_section_accessor_template( S* section_ )
: modinfo_section( section_ )
{
process_section();
}
//------------------------------------------------------------------------------
Elf_Word get_attribute_num() const { return (Elf_Word)content.size(); }
//------------------------------------------------------------------------------
bool
get_attribute( Elf_Word no, std::string& field, std::string& value ) const
{
if ( no < content.size() ) {
field = content[no].first;
value = content[no].second;
return true;
}
return false;
}
//------------------------------------------------------------------------------
bool get_attribute( std::string field_name, std::string& value ) const
{
for ( auto i = content.begin(); i != content.end(); i++ ) {
if ( field_name == i->first ) {
value = i->second;
return true;
}
}
return false;
}
//------------------------------------------------------------------------------
Elf_Word add_attribute( std::string field, std::string value )
{
Elf_Word current_position = 0;
if ( modinfo_section ) {
// Strings are addeded to the end of the current section data
current_position = (Elf_Word)modinfo_section->get_size();
std::string attribute = field + "=" + value;
modinfo_section->append_data( attribute + '\0' );
content.push_back(
std::pair<std::string, std::string>( field, value ) );
}
return current_position;
}
//------------------------------------------------------------------------------
private:
void process_section()
{
const char* pdata = modinfo_section->get_data();
if ( pdata ) {
ELFIO::Elf_Xword i = 0;
while ( i < modinfo_section->get_size() ) {
while ( i < modinfo_section->get_size() && !pdata[i] )
i++;
if ( i < modinfo_section->get_size() ) {
std::string info = pdata + i;
size_t loc = info.find( '=' );
std::pair<std::string, std::string> attribute(
info.substr( 0, loc ), info.substr( loc + 1 ) );
content.push_back( attribute );
i += info.length();
}
}
}
}
//------------------------------------------------------------------------------
private:
S* modinfo_section;
std::vector<std::pair<std::string, std::string>> content;
};
using modinfo_section_accessor = modinfo_section_accessor_template<section>;
using const_modinfo_section_accessor =
modinfo_section_accessor_template<const section>;
} // namespace ELFIO
#endif // ELFIO_MODINFO_HPP
/*** End of inlined file: elfio_modinfo.hpp ***/
#ifdef _MSC_VER
#pragma warning( pop )
#endif
#endif // ELFIO_HPP
/*** End of inlined file: elfio.hpp ***/
namespace ELFIO {
static struct class_table_t
{
const char key;
const char* str;
} class_table[] = {
{ ELFCLASS32, "ELF32" },
{ ELFCLASS64, "ELF64" },
};
static struct endian_table_t
{
const char key;
const char* str;
} endian_table[] = {
{ ELFDATANONE, "None" },
{ ELFDATA2LSB, "Little endian" },
{ ELFDATA2MSB, "Big endian" },
};
static struct version_table_t
{
const Elf64_Word key;
const char* str;
} version_table[] = {
{ EV_NONE, "None" },
{ EV_CURRENT, "Current" },
};
static struct type_table_t
{
const Elf32_Half key;
const char* str;
} type_table[] = {
{ ET_NONE, "No file type" }, { ET_REL, "Relocatable file" },
{ ET_EXEC, "Executable file" }, { ET_DYN, "Shared object file" },
{ ET_CORE, "Core file" },
};
static struct machine_table_t
{
const Elf64_Half key;
const char* str;
} machine_table[] = {
{ EM_NONE, "No machine" },
{ EM_M32, "AT&T WE 32100" },
{ EM_SPARC, "SUN SPARC" },
{ EM_386, "Intel 80386" },
{ EM_68K, "Motorola m68k family" },
{ EM_88K, "Motorola m88k family" },
{ EM_486, "Intel 80486// Reserved for future use" },
{ EM_860, "Intel 80860" },
{ EM_MIPS, "MIPS R3000 (officially, big-endian only)" },
{ EM_S370, "IBM System/370" },
{ EM_MIPS_RS3_LE,
"MIPS R3000 little-endian (Oct 4 1999 Draft) Deprecated" },
{ EM_res011, "Reserved" },
{ EM_res012, "Reserved" },
{ EM_res013, "Reserved" },
{ EM_res014, "Reserved" },
{ EM_PARISC, "HPPA" },
{ EM_res016, "Reserved" },
{ EM_VPP550, "Fujitsu VPP500" },
{ EM_SPARC32PLUS, "Sun's v8plus" },
{ EM_960, "Intel 80960" },
{ EM_PPC, "PowerPC" },
{ EM_PPC64, "64-bit PowerPC" },
{ EM_S390, "IBM S/390" },
{ EM_SPU, "Sony/Toshiba/IBM SPU" },
{ EM_res024, "Reserved" },
{ EM_res025, "Reserved" },
{ EM_res026, "Reserved" },
{ EM_res027, "Reserved" },
{ EM_res028, "Reserved" },
{ EM_res029, "Reserved" },
{ EM_res030, "Reserved" },
{ EM_res031, "Reserved" },
{ EM_res032, "Reserved" },
{ EM_res033, "Reserved" },
{ EM_res034, "Reserved" },
{ EM_res035, "Reserved" },
{ EM_V800, "NEC V800 series" },
{ EM_FR20, "Fujitsu FR20" },
{ EM_RH32, "TRW RH32" },
{ EM_MCORE, "Motorola M*Core // May also be taken by Fujitsu MMA" },
{ EM_RCE, "Old name for MCore" },
{ EM_ARM, "ARM" },
{ EM_OLD_ALPHA, "Digital Alpha" },
{ EM_SH, "Renesas (formerly Hitachi) / SuperH SH" },
{ EM_SPARCV9, "SPARC v9 64-bit" },
{ EM_TRICORE, "Siemens Tricore embedded processor" },
{ EM_ARC, "ARC Cores" },
{ EM_H8_300, "Renesas (formerly Hitachi) H8/300" },
{ EM_H8_300H, "Renesas (formerly Hitachi) H8/300H" },
{ EM_H8S, "Renesas (formerly Hitachi) H8S" },
{ EM_H8_500, "Renesas (formerly Hitachi) H8/500" },
{ EM_IA_64, "Intel IA-64 Processor" },
{ EM_MIPS_X, "Stanford MIPS-X" },
{ EM_COLDFIRE, "Motorola Coldfire" },
{ EM_68HC12, "Motorola M68HC12" },
{ EM_MMA, "Fujitsu Multimedia Accelerator" },
{ EM_PCP, "Siemens PCP" },
{ EM_NCPU, "Sony nCPU embedded RISC processor" },
{ EM_NDR1, "Denso NDR1 microprocesspr" },
{ EM_STARCORE, "Motorola Star*Core processor" },
{ EM_ME16, "Toyota ME16 processor" },
{ EM_ST100, "STMicroelectronics ST100 processor" },
{ EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor" },
{ EM_X86_64, "Advanced Micro Devices X86-64 processor" },
{ EM_PDSP, "Sony DSP Processor" },
{ EM_PDP10, "Digital Equipment Corp. PDP-10" },
{ EM_PDP11, "Digital Equipment Corp. PDP-11" },
{ EM_FX66, "Siemens FX66 microcontroller" },
{ EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller" },
{ EM_ST7, "STMicroelectronics ST7 8-bit microcontroller" },
{ EM_68HC16, "Motorola MC68HC16 Microcontroller" },
{ EM_68HC11, "Motorola MC68HC11 Microcontroller" },
{ EM_68HC08, "Motorola MC68HC08 Microcontroller" },
{ EM_68HC05, "Motorola MC68HC05 Microcontroller" },
{ EM_SVX, "Silicon Graphics SVx" },
{ EM_ST19, "STMicroelectronics ST19 8-bit cpu" },
{ EM_VAX, "Digital VAX" },
{ EM_CRIS, "Axis Communications 32-bit embedded processor" },
{ EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu" },
{ EM_FIREPATH, "Element 14 64-bit DSP processor" },
{ EM_ZSP, "LSI Logic's 16-bit DSP processor" },
{ EM_MMIX, "Donald Knuth's educational 64-bit processor" },
{ EM_HUANY, "Harvard's machine-independent format" },
{ EM_PRISM, "SiTera Prism" },
{ EM_AVR, "Atmel AVR 8-bit microcontroller" },
{ EM_FR30, "Fujitsu FR30" },
{ EM_D10V, "Mitsubishi D10V" },
{ EM_D30V, "Mitsubishi D30V" },
{ EM_V850, "NEC v850" },
{ EM_M32R, "Renesas M32R (formerly Mitsubishi M32R)" },
{ EM_MN10300, "Matsushita MN10300" },
{ EM_MN10200, "Matsushita MN10200" },
{ EM_PJ, "picoJava" },
{ EM_OPENRISC, "OpenRISC 32-bit embedded processor" },
{ EM_ARC_A5, "ARC Cores Tangent-A5" },
{ EM_XTENSA, "Tensilica Xtensa Architecture" },
{ EM_VIDEOCORE, "Alphamosaic VideoCore processor" },
{ EM_TMM_GPP, "Thompson Multimedia General Purpose Processor" },
{ EM_NS32K, "National Semiconductor 32000 series" },
{ EM_TPC, "Tenor Network TPC processor" },
{ EM_SNP1K, "Trebia SNP 1000 processor" },
{ EM_ST200, "STMicroelectronics ST200 microcontroller" },
{ EM_IP2K, "Ubicom IP2022 micro controller" },
{ EM_MAX, "MAX Processor" },
{ EM_CR, "National Semiconductor CompactRISC" },
{ EM_F2MC16, "Fujitsu F2MC16" },
{ EM_MSP430, "TI msp430 micro controller" },
{ EM_BLACKFIN, "ADI Blackfin" },
{ EM_SE_C33, "S1C33 Family of Seiko Epson processors" },
{ EM_SEP, "Sharp embedded microprocessor" },
{ EM_ARCA, "Arca RISC Microprocessor" },
{ EM_UNICORE, "Microprocessor series from PKU-Unity Ltd. and MPRC of "
"Peking University" },
{ EM_EXCESS, "eXcess: 16/32/64-bit configurable embedded CPU" },
{ EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor" },
{ EM_ALTERA_NIOS2, "Altera Nios II soft-core processor" },
{ EM_CRX, "National Semiconductor CRX" },
{ EM_XGATE, "Motorola XGATE embedded processor" },
{ EM_C166, "Infineon C16x/XC16x processor" },
{ EM_M16C, "Renesas M16C series microprocessors" },
{ EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller" },
{ EM_CE, "Freescale Communication Engine RISC core" },
{ EM_M32C, "Renesas M32C series microprocessors" },
{ EM_res121, "Reserved" },
{ EM_res122, "Reserved" },
{ EM_res123, "Reserved" },
{ EM_res124, "Reserved" },
{ EM_res125, "Reserved" },
{ EM_res126, "Reserved" },
{ EM_res127, "Reserved" },
{ EM_res128, "Reserved" },
{ EM_res129, "Reserved" },
{ EM_res130, "Reserved" },
{ EM_TSK3000, "Altium TSK3000 core" },
{ EM_RS08, "Freescale RS08 embedded processor" },
{ EM_res133, "Reserved" },
{ EM_ECOG2, "Cyan Technology eCOG2 microprocessor" },
{ EM_SCORE, "Sunplus Score" },
{ EM_SCORE7, "Sunplus S+core7 RISC processor" },
{ EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor" },
{ EM_VIDEOCORE3, "Broadcom VideoCore III processor" },
{ EM_LATTICEMICO32, "RISC processor for Lattice FPGA architecture" },
{ EM_SE_C17, "Seiko Epson C17 family" },
{ EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family" },
{ EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family" },
{ EM_TI_C5500, "Texas Instruments TMS320C55x DSP family" },
{ EM_res143, "Reserved" },
{ EM_res144, "Reserved" },
{ EM_res145, "Reserved" },
{ EM_res146, "Reserved" },
{ EM_res147, "Reserved" },
{ EM_res148, "Reserved" },
{ EM_res149, "Reserved" },
{ EM_res150, "Reserved" },
{ EM_res151, "Reserved" },
{ EM_res152, "Reserved" },
{ EM_res153, "Reserved" },
{ EM_res154, "Reserved" },
{ EM_res155, "Reserved" },
{ EM_res156, "Reserved" },
{ EM_res157, "Reserved" },
{ EM_res158, "Reserved" },
{ EM_res159, "Reserved" },
{ EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor" },
{ EM_CYPRESS_M8C, "Cypress M8C microprocessor" },
{ EM_R32C, "Renesas R32C series microprocessors" },
{ EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family" },
{ EM_QDSP6, "QUALCOMM DSP6 Processor" },
{ EM_8051, "Intel 8051 and variants" },
{ EM_STXP7X, "STMicroelectronics STxP7x family" },
{ EM_NDS32,
"Andes Technology compact code size embedded RISC processor family" },
{ EM_ECOG1, "Cyan Technology eCOG1X family" },
{ EM_ECOG1X, "Cyan Technology eCOG1X family" },
{ EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core Micro-controllers" },
{ EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor" },
{ EM_MANIK, "M2000 Reconfigurable RISC Microprocessor" },
{ EM_CRAYNV2, "Cray Inc. NV2 vector architecture" },
{ EM_RX, "Renesas RX family" },
{ EM_METAG, "Imagination Technologies META processor architecture" },
{ EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture" },
{ EM_ECOG16, "Cyan Technology eCOG16 family" },
{ EM_CR16, "National Semiconductor CompactRISC 16-bit processor" },
{ EM_ETPU, "Freescale Extended Time Processing Unit" },
{ EM_SLE9X, "Infineon Technologies SLE9X core" },
{ EM_L1OM, "Intel L1OM" },
{ EM_INTEL181, "Reserved by Intel" },
{ EM_INTEL182, "Reserved by Intel" },
{ EM_res183, "Reserved by ARM" },
{ EM_res184, "Reserved by ARM" },
{ EM_AVR32, "Atmel Corporation 32-bit microprocessor family" },
{ EM_STM8, "STMicroeletronics STM8 8-bit microcontroller" },
{ EM_TILE64, "Tilera TILE64 multicore architecture family" },
{ EM_TILEPRO, "Tilera TILEPro multicore architecture family" },
{ EM_MICROBLAZE, "Xilinx MicroBlaze 32-bit RISC soft processor core" },
{ EM_CUDA, "NVIDIA CUDA architecture " },
};
static struct section_type_table_t
{
const Elf64_Half key;
const char* str;
} section_type_table[] = {
{ SHT_NULL, "NULL" },
{ SHT_PROGBITS, "PROGBITS" },
{ SHT_SYMTAB, "SYMTAB" },
{ SHT_STRTAB, "STRTAB" },
{ SHT_RELA, "RELA" },
{ SHT_HASH, "HASH" },
{ SHT_DYNAMIC, "DYNAMIC" },
{ SHT_NOTE, "NOTE" },
{ SHT_NOBITS, "NOBITS" },
{ SHT_REL, "REL" },
{ SHT_SHLIB, "SHLIB" },
{ SHT_DYNSYM, "DYNSYM" },
{ SHT_INIT_ARRAY, "INIT_ARRAY" },
{ SHT_FINI_ARRAY, "FINI_ARRAY" },
{ SHT_PREINIT_ARRAY, "PREINIT_ARRAY" },
{ SHT_GROUP, "GROUP" },
{ SHT_SYMTAB_SHNDX, "SYMTAB_SHNDX " },
};
static struct segment_type_table_t
{
const Elf_Word key;
const char* str;
} segment_type_table[] = {
{ PT_NULL, "NULL" }, { PT_LOAD, "LOAD" }, { PT_DYNAMIC, "DYNAMIC" },
{ PT_INTERP, "INTERP" }, { PT_NOTE, "NOTE" }, { PT_SHLIB, "SHLIB" },
{ PT_PHDR, "PHDR" }, { PT_TLS, "TLS" },
};
static struct segment_flag_table_t
{
const Elf_Word key;
const char* str;
} segment_flag_table[] = {
{ 0, "" }, { 1, "X" }, { 2, "W" }, { 3, "WX" },
{ 4, "R" }, { 5, "RX" }, { 6, "RW" }, { 7, "RWX" },
};
static struct symbol_bind_t
{
const Elf_Word key;
const char* str;
} symbol_bind_table[] = {
{ STB_LOCAL, "LOCAL" }, { STB_GLOBAL, "GLOBAL" },
{ STB_WEAK, "WEAK" }, { STB_LOOS, "LOOS" },
{ STB_HIOS, "HIOS" }, { STB_MULTIDEF, "MULTIDEF" },
{ STB_LOPROC, "LOPROC" }, { STB_HIPROC, "HIPROC" },
};
static struct symbol_type_t
{
const Elf_Word key;
const char* str;
} symbol_type_table[] = {
{ STT_NOTYPE, "NOTYPE" }, { STT_OBJECT, "OBJECT" },
{ STT_FUNC, "FUNC" }, { STT_SECTION, "SECTION" },
{ STT_FILE, "FILE" }, { STT_COMMON, "COMMON" },
{ STT_TLS, "TLS" }, { STT_LOOS, "LOOS" },
{ STT_HIOS, "HIOS" }, { STT_LOPROC, "LOPROC" },
{ STT_HIPROC, "HIPROC" },
};
static struct dynamic_tag_t
{
const Elf_Word key;
const char* str;
} dynamic_tag_table[] = {
{ DT_NULL, "NULL" },
{ DT_NEEDED, "NEEDED" },
{ DT_PLTRELSZ, "PLTRELSZ" },
{ DT_PLTGOT, "PLTGOT" },
{ DT_HASH, "HASH" },
{ DT_STRTAB, "STRTAB" },
{ DT_SYMTAB, "SYMTAB" },
{ DT_RELA, "RELA" },
{ DT_RELASZ, "RELASZ" },
{ DT_RELAENT, "RELAENT" },
{ DT_STRSZ, "STRSZ" },
{ DT_SYMENT, "SYMENT" },
{ DT_INIT, "INIT" },
{ DT_FINI, "FINI" },
{ DT_SONAME, "SONAME" },
{ DT_RPATH, "RPATH" },
{ DT_SYMBOLIC, "SYMBOLIC" },
{ DT_REL, "REL" },
{ DT_RELSZ, "RELSZ" },
{ DT_RELENT, "RELENT" },
{ DT_PLTREL, "PLTREL" },
{ DT_DEBUG, "DEBUG" },
{ DT_TEXTREL, "TEXTREL" },
{ DT_JMPREL, "JMPREL" },
{ DT_BIND_NOW, "BIND_NOW" },
{ DT_INIT_ARRAY, "INIT_ARRAY" },
{ DT_FINI_ARRAY, "FINI_ARRAY" },
{ DT_INIT_ARRAYSZ, "INIT_ARRAYSZ" },
{ DT_FINI_ARRAYSZ, "FINI_ARRAYSZ" },
{ DT_RUNPATH, "RUNPATH" },
{ DT_FLAGS, "FLAGS" },
{ DT_ENCODING, "ENCODING" },
{ DT_PREINIT_ARRAY, "PREINIT_ARRAY" },
{ DT_PREINIT_ARRAYSZ, "PREINIT_ARRAYSZ" },
{ DT_MAXPOSTAGS, "MAXPOSTAGS" },
};
static const ELFIO::Elf_Xword MAX_DATA_ENTRIES = 64;
//------------------------------------------------------------------------------
class dump
{
#define DUMP_DEC_FORMAT( width ) \
std::setw( width ) << std::setfill( ' ' ) << std::dec << std::right
#define DUMP_HEX_FORMAT( width ) \
std::setw( width ) << std::setfill( '0' ) << std::hex << std::right
#define DUMP_STR_FORMAT( width ) \
std::setw( width ) << std::setfill( ' ' ) << std::hex << std::left
public:
//------------------------------------------------------------------------------
static void header( std::ostream& out, const elfio& reader )
{
if ( !reader.get_header_size() ) {
return;
}
out << "ELF Header" << std::endl
<< std::endl
<< " Class: " << str_class( reader.get_class() ) << std::endl
<< " Encoding: " << str_endian( reader.get_encoding() )
<< std::endl
<< " ELFVersion: " << str_version( reader.get_elf_version() )
<< std::endl
<< " Type: " << str_type( reader.get_type() ) << std::endl
<< " Machine: " << str_machine( reader.get_machine() )
<< std::endl
<< " Version: " << str_version( reader.get_version() )
<< std::endl
<< " Entry: "
<< "0x" << std::hex << reader.get_entry() << std::endl
<< " Flags: "
<< "0x" << std::hex << reader.get_flags() << std::endl
<< std::endl;
}
//------------------------------------------------------------------------------
static void section_headers( std::ostream& out, const elfio& reader )
{
Elf_Half n = reader.sections.size();
if ( n == 0 ) {
return;
}
out << "Section Headers:" << std::endl;
if ( reader.get_class() == ELFCLASS32 ) { // Output for 32-bit
out << "[ Nr ] Type Addr Size ES Flg Lk Inf "
"Al Name"
<< std::endl;
}
else { // Output for 64-bit
out << "[ Nr ] Type Addr Size "
" ES Flg"
<< std::endl
<< " Lk Inf Al Name" << std::endl;
}
for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
section* sec = reader.sections[i];
section_header( out, i, sec, reader.get_class() );
}
out << "Key to Flags: W (write), A (alloc), X (execute)\n\n"
<< std::endl;
}
//------------------------------------------------------------------------------
static void section_header( std::ostream& out,
Elf_Half no,
const section* sec,
unsigned char elf_class )
{
std::ios_base::fmtflags original_flags = out.flags();
if ( elf_class == ELFCLASS32 ) { // Output for 32-bit
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_STR_FORMAT( 17 ) << str_section_type( sec->get_type() )
<< " " << DUMP_HEX_FORMAT( 8 ) << sec->get_address() << " "
<< DUMP_HEX_FORMAT( 8 ) << sec->get_size() << " "
<< DUMP_HEX_FORMAT( 2 ) << sec->get_entry_size() << " "
<< DUMP_STR_FORMAT( 3 ) << section_flags( sec->get_flags() )
<< " " << DUMP_HEX_FORMAT( 2 ) << sec->get_link() << " "
<< DUMP_HEX_FORMAT( 3 ) << sec->get_info() << " "
<< DUMP_HEX_FORMAT( 2 ) << sec->get_addr_align() << " "
<< DUMP_STR_FORMAT( 17 ) << sec->get_name() << " " << std::endl;
}
else { // Output for 64-bit
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_STR_FORMAT( 17 ) << str_section_type( sec->get_type() )
<< " " << DUMP_HEX_FORMAT( 16 ) << sec->get_address() << " "
<< DUMP_HEX_FORMAT( 16 ) << sec->get_size() << " "
<< DUMP_HEX_FORMAT( 4 ) << sec->get_entry_size() << " "
<< DUMP_STR_FORMAT( 3 ) << section_flags( sec->get_flags() )
<< " " << std::endl
<< " " << DUMP_HEX_FORMAT( 4 ) << sec->get_link() << " "
<< DUMP_HEX_FORMAT( 4 ) << sec->get_info() << " "
<< DUMP_HEX_FORMAT( 4 ) << sec->get_addr_align() << " "
<< DUMP_STR_FORMAT( 17 ) << sec->get_name() << " " << std::endl;
}
out.flags( original_flags );
return;
}
//------------------------------------------------------------------------------
static void segment_headers( std::ostream& out, const elfio& reader )
{
Elf_Half n = reader.segments.size();
if ( n == 0 ) {
return;
}
out << "Segment headers:" << std::endl;
if ( reader.get_class() == ELFCLASS32 ) { // Output for 32-bit
out << "[ Nr ] Type VirtAddr PhysAddr FileSize Mem.Size "
"Flags Align"
<< std::endl;
}
else { // Output for 64-bit
out << "[ Nr ] Type VirtAddr PhysAddr "
"Flags"
<< std::endl
<< " FileSize Mem.Size "
"Align"
<< std::endl;
}
for ( Elf_Half i = 0; i < n; ++i ) {
segment* seg = reader.segments[i];
segment_header( out, i, seg, reader.get_class() );
}
out << std::endl;
}
//------------------------------------------------------------------------------
static void segment_header( std::ostream& out,
Elf_Half no,
const segment* seg,
unsigned int elf_class )
{
std::ios_base::fmtflags original_flags = out.flags();
if ( elf_class == ELFCLASS32 ) { // Output for 32-bit
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_STR_FORMAT( 14 ) << str_segment_type( seg->get_type() )
<< " " << DUMP_HEX_FORMAT( 8 ) << seg->get_virtual_address()
<< " " << DUMP_HEX_FORMAT( 8 ) << seg->get_physical_address()
<< " " << DUMP_HEX_FORMAT( 8 ) << seg->get_file_size() << " "
<< DUMP_HEX_FORMAT( 8 ) << seg->get_memory_size() << " "
<< DUMP_STR_FORMAT( 8 ) << str_segment_flag( seg->get_flags() )
<< " " << DUMP_HEX_FORMAT( 8 ) << seg->get_align() << " "
<< std::endl;
}
else { // Output for 64-bit
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_STR_FORMAT( 14 ) << str_segment_type( seg->get_type() )
<< " " << DUMP_HEX_FORMAT( 16 ) << seg->get_virtual_address()
<< " " << DUMP_HEX_FORMAT( 16 ) << seg->get_physical_address()
<< " " << DUMP_STR_FORMAT( 16 )
<< str_segment_flag( seg->get_flags() ) << " " << std::endl
<< " " << DUMP_HEX_FORMAT( 16 )
<< seg->get_file_size() << " " << DUMP_HEX_FORMAT( 16 )
<< seg->get_memory_size() << " " << DUMP_HEX_FORMAT( 16 )
<< seg->get_align() << " " << std::endl;
}
out.flags( original_flags );
}
//------------------------------------------------------------------------------
static void symbol_tables( std::ostream& out, const elfio& reader )
{
Elf_Half n = reader.sections.size();
for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
section* sec = reader.sections[i];
if ( SHT_SYMTAB == sec->get_type() ||
SHT_DYNSYM == sec->get_type() ) {
symbol_section_accessor symbols( reader, sec );
Elf_Xword sym_no = symbols.get_symbols_num();
if ( sym_no > 0 ) {
out << "Symbol table (" << sec->get_name() << ")"
<< std::endl;
if ( reader.get_class() ==
ELFCLASS32 ) { // Output for 32-bit
out << "[ Nr ] Value Size Type Bind "
"Sect Name"
<< std::endl;
}
else { // Output for 64-bit
out << "[ Nr ] Value Size Type "
" Bind Sect"
<< std::endl
<< " Name" << std::endl;
}
for ( Elf_Xword i = 0; i < sym_no; ++i ) {
std::string name;
Elf64_Addr value = 0;
Elf_Xword size = 0;
unsigned char bind = 0;
unsigned char type = 0;
Elf_Half section = 0;
unsigned char other = 0;
symbols.get_symbol( i, name, value, size, bind, type,
section, other );
symbol_table( out, i, name, value, size, bind, type,
section, reader.get_class() );
}
out << std::endl;
}
}
}
}
//------------------------------------------------------------------------------
static void symbol_table( std::ostream& out,
Elf_Xword no,
std::string& name,
Elf64_Addr value,
Elf_Xword size,
unsigned char bind,
unsigned char type,
Elf_Half section,
unsigned int elf_class )
{
std::ios_base::fmtflags original_flags = out.flags();
if ( elf_class == ELFCLASS32 ) { // Output for 32-bit
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_HEX_FORMAT( 8 ) << value << " " << DUMP_HEX_FORMAT( 8 )
<< size << " " << DUMP_STR_FORMAT( 7 )
<< str_symbol_type( type ) << " " << DUMP_STR_FORMAT( 8 )
<< str_symbol_bind( bind ) << " " << DUMP_DEC_FORMAT( 5 )
<< section << " " << DUMP_STR_FORMAT( 1 ) << name << " "
<< std::endl;
}
else { // Output for 64-bit
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_HEX_FORMAT( 16 ) << value << " "
<< DUMP_HEX_FORMAT( 16 ) << size << " " << DUMP_STR_FORMAT( 7 )
<< str_symbol_type( type ) << " " << DUMP_STR_FORMAT( 8 )
<< str_symbol_bind( bind ) << " " << DUMP_DEC_FORMAT( 5 )
<< section << " " << std::endl
<< " " << DUMP_STR_FORMAT( 1 ) << name << " "
<< std::endl;
}
out.flags( original_flags );
}
//------------------------------------------------------------------------------
static void notes( std::ostream& out, const elfio& reader )
{
Elf_Half no = reader.sections.size();
for ( Elf_Half i = 0; i < no; ++i ) { // For all sections
section* sec = reader.sections[i];
if ( SHT_NOTE == sec->get_type() ) { // Look at notes
note_section_accessor notes( reader, sec );
Elf_Word no_notes = notes.get_notes_num();
if ( no > 0 ) {
out << "Note section (" << sec->get_name() << ")"
<< std::endl
<< " No Type Name" << std::endl;
for ( Elf_Word j = 0; j < no_notes; ++j ) { // For all notes
Elf_Word type;
std::string name;
void* desc;
Elf_Word descsz;
if ( notes.get_note( j, type, name, desc, descsz ) ) {
// 'name' usually contains \0 at the end. Try to fix it
name = name.c_str();
note( out, j, type, name );
}
}
out << std::endl;
}
}
}
}
//------------------------------------------------------------------------------
static void modinfo( std::ostream& out, const elfio& reader )
{
Elf_Half no = reader.sections.size();
for ( Elf_Half i = 0; i < no; ++i ) { // For all sections
section* sec = reader.sections[i];
if ( ".modinfo" == sec->get_name() ) { // Look for the section
out << "Section .modinfo" << std::endl;
const_modinfo_section_accessor modinfo( sec );
for ( Elf_Word i = 0; i < modinfo.get_attribute_num(); i++ ) {
std::string field;
std::string value;
if ( modinfo.get_attribute( i, field, value ) ) {
out << " " << std::setw( 20 ) << field
<< std::setw( 0 ) << " = " << value << std::endl;
}
}
out << std::endl;
break;
}
}
}
//------------------------------------------------------------------------------
static void
note( std::ostream& out, int no, Elf_Word type, const std::string& name )
{
out << " [" << DUMP_DEC_FORMAT( 2 ) << no << "] "
<< DUMP_HEX_FORMAT( 8 ) << type << " " << DUMP_STR_FORMAT( 1 )
<< name << std::endl;
}
//------------------------------------------------------------------------------
static void dynamic_tags( std::ostream& out, const elfio& reader )
{
Elf_Half n = reader.sections.size();
for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
section* sec = reader.sections[i];
if ( SHT_DYNAMIC == sec->get_type() ) {
dynamic_section_accessor dynamic( reader, sec );
Elf_Xword dyn_no = dynamic.get_entries_num();
if ( dyn_no > 0 ) {
out << "Dynamic section (" << sec->get_name() << ")"
<< std::endl;
out << "[ Nr ] Tag Name/Value" << std::endl;
for ( Elf_Xword i = 0; i < dyn_no; ++i ) {
Elf_Xword tag = 0;
Elf_Xword value = 0;
std::string str;
dynamic.get_entry( i, tag, value, str );
dynamic_tag( out, i, tag, value, str,
reader.get_class() );
if ( DT_NULL == tag ) {
break;
}
}
out << std::endl;
}
}
}
}
//------------------------------------------------------------------------------
static void dynamic_tag( std::ostream& out,
Elf_Xword no,
Elf_Xword tag,
Elf_Xword value,
std::string str,
unsigned int /*elf_class*/ )
{
out << "[" << DUMP_DEC_FORMAT( 5 ) << no << "] "
<< DUMP_STR_FORMAT( 16 ) << str_dynamic_tag( tag ) << " ";
if ( str.empty() ) {
out << DUMP_HEX_FORMAT( 16 ) << value << " ";
}
else {
out << DUMP_STR_FORMAT( 32 ) << str << " ";
}
out << std::endl;
}
//------------------------------------------------------------------------------
static void section_data( std::ostream& out, const section* sec )
{
std::ios_base::fmtflags original_flags = out.flags();
out << sec->get_name() << std::endl;
const char* pdata = sec->get_data();
if ( pdata ) {
ELFIO::Elf_Xword i;
for ( i = 0; i < std::min( sec->get_size(), MAX_DATA_ENTRIES );
++i ) {
if ( i % 16 == 0 ) {
out << "[" << DUMP_HEX_FORMAT( 8 ) << i << "]";
}
out << " " << DUMP_HEX_FORMAT( 2 ) << ( pdata[i] & 0x000000FF );
if ( i % 16 == 15 ) {
out << std::endl;
}
}
if ( i % 16 != 0 ) {
out << std::endl;
}
out.flags( original_flags );
}
return;
}
//------------------------------------------------------------------------------
static void section_datas( std::ostream& out, const elfio& reader )
{
Elf_Half n = reader.sections.size();
if ( n == 0 ) {
return;
}
out << "Section Data:" << std::endl;
for ( Elf_Half i = 1; i < n; ++i ) { // For all sections
section* sec = reader.sections[i];
if ( sec->get_type() == SHT_NOBITS ) {
continue;
}
section_data( out, sec );
}
out << std::endl;
}
//------------------------------------------------------------------------------
static void
segment_data( std::ostream& out, Elf_Half no, const segment* seg )
{
std::ios_base::fmtflags original_flags = out.flags();
out << "Segment # " << no << std::endl;
const char* pdata = seg->get_data();
if ( pdata ) {
ELFIO::Elf_Xword i;
for ( i = 0; i < std::min( seg->get_file_size(), MAX_DATA_ENTRIES );
++i ) {
if ( i % 16 == 0 ) {
out << "[" << DUMP_HEX_FORMAT( 8 ) << i << "]";
}
out << " " << DUMP_HEX_FORMAT( 2 ) << ( pdata[i] & 0x000000FF );
if ( i % 16 == 15 ) {
out << std::endl;
}
}
if ( i % 16 != 0 ) {
out << std::endl;
}
out.flags( original_flags );
}
return;
}
//------------------------------------------------------------------------------
static void segment_datas( std::ostream& out, const elfio& reader )
{
Elf_Half n = reader.segments.size();
if ( n == 0 ) {
return;
}
out << "Segment Data:" << std::endl;
for ( Elf_Half i = 0; i < n; ++i ) { // For all sections
segment* seg = reader.segments[i];
segment_data( out, i, seg );
}
out << std::endl;
}
private:
//------------------------------------------------------------------------------
template <typename T, typename K>
std::string static find_value_in_table( const T& table, const K& key )
{
std::string res = "?";
for ( unsigned int i = 0; i < sizeof( table ) / sizeof( table[0] );
++i ) {
if ( table[i].key == key ) {
res = table[i].str;
break;
}
}
return res;
}
//------------------------------------------------------------------------------
template <typename T, typename K>
static std::string format_assoc( const T& table, const K& key )
{
std::string str = find_value_in_table( table, key );
if ( str == "?" ) {
std::ostringstream oss;
oss << str << " (0x" << std::hex << key << ")";
str = oss.str();
}
return str;
}
//------------------------------------------------------------------------------
template <typename T>
static std::string format_assoc( const T& table, const char key )
{
return format_assoc( table, (const int)key );
}
//------------------------------------------------------------------------------
static std::string section_flags( Elf_Xword flags )
{
std::string ret = "";
if ( flags & SHF_WRITE ) {
ret += "W";
}
if ( flags & SHF_ALLOC ) {
ret += "A";
}
if ( flags & SHF_EXECINSTR ) {
ret += "X";
}
return ret;
}
//------------------------------------------------------------------------------
#define STR_FUNC_TABLE( name ) \
template <typename T> static std::string str_##name( const T key ) \
{ \
return format_assoc( name##_table, key ); \
}
STR_FUNC_TABLE( class )
STR_FUNC_TABLE( endian )
STR_FUNC_TABLE( version )
STR_FUNC_TABLE( type )
STR_FUNC_TABLE( machine )
STR_FUNC_TABLE( section_type )
STR_FUNC_TABLE( segment_type )
STR_FUNC_TABLE( segment_flag )
STR_FUNC_TABLE( symbol_bind )
STR_FUNC_TABLE( symbol_type )
STR_FUNC_TABLE( dynamic_tag )
#undef STR_FUNC_TABLE
#undef DUMP_DEC_FORMAT
#undef DUMP_HEX_FORMAT
#undef DUMP_STR_FORMAT
}; // class dump
}; // namespace ELFIO
#endif // ELFIO_DUMP_HPP
/*** End of inlined file: elfio_dump.hpp ***/