/*
Copyright (C) 2001-2015 by Serge Lamikhov-Center

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

#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

// 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


/////////////////////
// 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

// 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_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_386_32 1
#define R_X86_64_64 1
#define R_386_PC32 2
#define R_X86_64_PC32 2
#define R_386_GOT32 3
#define R_X86_64_GOT32 3
#define R_386_PLT32 4
#define R_X86_64_PLT32 4
#define R_386_COPY 5
#define R_X86_64_COPY 5
#define R_386_GLOB_DAT 6
#define R_X86_64_GLOB_DAT 6
#define R_386_JMP_SLOT 7
#define R_X86_64_JUMP_SLOT 7
#define R_386_RELATIVE 8
#define R_X86_64_RELATIVE 8
#define R_386_GOTOFF 9
#define R_X86_64_GOTPCREL 9
#define R_386_GOTPC 10
#define R_X86_64_32 10
#define R_X86_64_32S 11
#define R_X86_64_16 12
#define R_X86_64_PC16 13
#define R_X86_64_8 14
#define R_X86_64_PC8 15
#define R_X86_64_DTPMOD64 16
#define R_X86_64_DTPOFF64 17
#define R_X86_64_TPOFF64 18
#define R_X86_64_TLSGD 19
#define R_X86_64_TLSLD 20
#define R_X86_64_DTPOFF32 21
#define R_X86_64_GOTTPOFF 22
#define R_X86_64_TPOFF32 23
#define R_X86_64_PC64 24
#define R_X86_64_GOTOFF64 25
#define R_X86_64_GOTPC32 26
#define R_X86_64_GOT64 27
#define R_X86_64_GOTPCREL64 28
#define R_X86_64_GOTPC64 29
#define R_X86_64_GOTPLT64 30
#define R_X86_64_PLTOFF64 31
#define R_X86_64_GOTPC32_TLSDESC 34
#define R_X86_64_TLSDESC_CALL 35
#define R_X86_64_TLSDESC 36
#define R_X86_64_IRELATIVE 37
#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
