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//===-- llvm/Support/ELF.h - ELF constants and data structures --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This header contains common, non-processor-specific data structures and
// constants for the ELF file format.
//
// The details of the ELF32 bits in this file are largely based on the Tool
// Interface Standard (TIS) Executable and Linking Format (ELF) Specification
// Version 1.2, May 1995. The ELF64 stuff is based on ELF-64 Object File Format
// Version 1.5, Draft 2, May 1998 as well as OpenBSD header files.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_ELF_H
#define LLVM_SUPPORT_ELF_H
#include "llvm/Support/DataTypes.h"
#include <cstring>
namespace llvm {
namespace ELF {
typedef uint32_t Elf32_Addr; // Program address
typedef uint32_t Elf32_Off; // File offset
typedef uint16_t Elf32_Half;typedef uint32_t Elf32_Word;typedef int32_t Elf32_Sword;
typedef uint64_t Elf64_Addr;typedef uint64_t Elf64_Off;typedef uint16_t Elf64_Half;typedef uint32_t Elf64_Word;typedef int32_t Elf64_Sword;typedef uint64_t Elf64_Xword;typedef int64_t Elf64_Sxword;
// Object file magic string.
static const char ElfMagic[] = { 0x7f, 'E', 'L', 'F', '\0' };
// e_ident size and indices.
enum { EI_MAG0 = 0, // File identification index.
EI_MAG1 = 1, // File identification index.
EI_MAG2 = 2, // File identification index.
EI_MAG3 = 3, // File identification index.
EI_CLASS = 4, // File class.
EI_DATA = 5, // Data encoding.
EI_VERSION = 6, // File version.
EI_OSABI = 7, // OS/ABI identification.
EI_ABIVERSION = 8, // ABI version.
EI_PAD = 9, // Start of padding bytes.
EI_NIDENT = 16 // Number of bytes in e_ident.
};
struct Elf32_Ehdr { unsigned char e_ident[EI_NIDENT]; // ELF Identification bytes
Elf32_Half e_type; // Type of file (see ET_* below)
Elf32_Half e_machine; // Required architecture for this file (see EM_*)
Elf32_Word e_version; // Must be equal to 1
Elf32_Addr e_entry; // Address to jump to in order to start program
Elf32_Off e_phoff; // Program header table's file offset, in bytes
Elf32_Off e_shoff; // Section header table's file offset, in bytes
Elf32_Word e_flags; // Processor-specific flags
Elf32_Half e_ehsize; // Size of ELF header, in bytes
Elf32_Half e_phentsize; // Size of an entry in the program header table
Elf32_Half e_phnum; // Number of entries in the program header table
Elf32_Half e_shentsize; // Size of an entry in the section header table
Elf32_Half e_shnum; // Number of entries in the section header table
Elf32_Half e_shstrndx; // Sect hdr table index of sect name string table
bool checkMagic() const { return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0; } unsigned char getFileClass() const { return e_ident[EI_CLASS]; } unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }};
// 64-bit ELF header. Fields are the same as for ELF32, but with different
// types (see above).
struct Elf64_Ehdr { unsigned char e_ident[EI_NIDENT]; Elf64_Half e_type; Elf64_Half e_machine; Elf64_Word e_version; Elf64_Addr e_entry; Elf64_Off e_phoff; Elf64_Off e_shoff; Elf64_Word e_flags; Elf64_Half e_ehsize; Elf64_Half e_phentsize; Elf64_Half e_phnum; Elf64_Half e_shentsize; Elf64_Half e_shnum; Elf64_Half e_shstrndx; bool checkMagic() const { return (memcmp(e_ident, ElfMagic, strlen(ElfMagic))) == 0; } unsigned char getFileClass() const { return e_ident[EI_CLASS]; } unsigned char getDataEncoding() const { return e_ident[EI_DATA]; }};
// File types
enum { ET_NONE = 0, // No file type
ET_REL = 1, // Relocatable file
ET_EXEC = 2, // Executable file
ET_DYN = 3, // Shared object file
ET_CORE = 4, // Core file
ET_LOPROC = 0xff00, // Beginning of processor-specific codes
ET_HIPROC = 0xffff // Processor-specific
};
// Versioning
enum { EV_NONE = 0, EV_CURRENT = 1};
// Machine architectures
enum { EM_NONE = 0, // No machine
EM_M32 = 1, // AT&T WE 32100
EM_SPARC = 2, // SPARC
EM_386 = 3, // Intel 386
EM_68K = 4, // Motorola 68000
EM_88K = 5, // Motorola 88000
EM_486 = 6, // Intel 486 (deprecated)
EM_860 = 7, // Intel 80860
EM_MIPS = 8, // MIPS R3000
EM_S370 = 9, // IBM System/370
EM_MIPS_RS3_LE = 10, // MIPS RS3000 Little-endian
EM_PARISC = 15, // Hewlett-Packard PA-RISC
EM_VPP500 = 17, // Fujitsu VPP500
EM_SPARC32PLUS = 18, // Enhanced instruction set SPARC
EM_960 = 19, // Intel 80960
EM_PPC = 20, // PowerPC
EM_PPC64 = 21, // PowerPC64
EM_S390 = 22, // IBM System/390
EM_SPU = 23, // IBM SPU/SPC
EM_V800 = 36, // NEC V800
EM_FR20 = 37, // Fujitsu FR20
EM_RH32 = 38, // TRW RH-32
EM_RCE = 39, // Motorola RCE
EM_ARM = 40, // ARM
EM_ALPHA = 41, // DEC Alpha
EM_SH = 42, // Hitachi SH
EM_SPARCV9 = 43, // SPARC V9
EM_TRICORE = 44, // Siemens TriCore
EM_ARC = 45, // Argonaut RISC Core
EM_H8_300 = 46, // Hitachi H8/300
EM_H8_300H = 47, // Hitachi H8/300H
EM_H8S = 48, // Hitachi H8S
EM_H8_500 = 49, // Hitachi H8/500
EM_IA_64 = 50, // Intel IA-64 processor architecture
EM_MIPS_X = 51, // Stanford MIPS-X
EM_COLDFIRE = 52, // Motorola ColdFire
EM_68HC12 = 53, // Motorola M68HC12
EM_MMA = 54, // Fujitsu MMA Multimedia Accelerator
EM_PCP = 55, // Siemens PCP
EM_NCPU = 56, // Sony nCPU embedded RISC processor
EM_NDR1 = 57, // Denso NDR1 microprocessor
EM_STARCORE = 58, // Motorola Star*Core processor
EM_ME16 = 59, // Toyota ME16 processor
EM_ST100 = 60, // STMicroelectronics ST100 processor
EM_TINYJ = 61, // Advanced Logic Corp. TinyJ embedded processor family
EM_X86_64 = 62, // AMD x86-64 architecture
EM_PDSP = 63, // Sony DSP Processor
EM_PDP10 = 64, // Digital Equipment Corp. PDP-10
EM_PDP11 = 65, // Digital Equipment Corp. PDP-11
EM_FX66 = 66, // Siemens FX66 microcontroller
EM_ST9PLUS = 67, // STMicroelectronics ST9+ 8/16 bit microcontroller
EM_ST7 = 68, // STMicroelectronics ST7 8-bit microcontroller
EM_68HC16 = 69, // Motorola MC68HC16 Microcontroller
EM_68HC11 = 70, // Motorola MC68HC11 Microcontroller
EM_68HC08 = 71, // Motorola MC68HC08 Microcontroller
EM_68HC05 = 72, // Motorola MC68HC05 Microcontroller
EM_SVX = 73, // Silicon Graphics SVx
EM_ST19 = 74, // STMicroelectronics ST19 8-bit microcontroller
EM_VAX = 75, // Digital VAX
EM_CRIS = 76, // Axis Communications 32-bit embedded processor
EM_JAVELIN = 77, // Infineon Technologies 32-bit embedded processor
EM_FIREPATH = 78, // Element 14 64-bit DSP Processor
EM_ZSP = 79, // LSI Logic 16-bit DSP Processor
EM_MMIX = 80, // Donald Knuth's educational 64-bit processor
EM_HUANY = 81, // Harvard University machine-independent object files
EM_PRISM = 82, // SiTera Prism
EM_AVR = 83, // Atmel AVR 8-bit microcontroller
EM_FR30 = 84, // Fujitsu FR30
EM_D10V = 85, // Mitsubishi D10V
EM_D30V = 86, // Mitsubishi D30V
EM_V850 = 87, // NEC v850
EM_M32R = 88, // Mitsubishi M32R
EM_MN10300 = 89, // Matsushita MN10300
EM_MN10200 = 90, // Matsushita MN10200
EM_PJ = 91, // picoJava
EM_OPENRISC = 92, // OpenRISC 32-bit embedded processor
EM_ARC_COMPACT = 93, // ARC International ARCompact processor (old
// spelling/synonym: EM_ARC_A5)
EM_XTENSA = 94, // Tensilica Xtensa Architecture
EM_VIDEOCORE = 95, // Alphamosaic VideoCore processor
EM_TMM_GPP = 96, // Thompson Multimedia General Purpose Processor
EM_NS32K = 97, // National Semiconductor 32000 series
EM_TPC = 98, // Tenor Network TPC processor
EM_SNP1K = 99, // Trebia SNP 1000 processor
EM_ST200 = 100, // STMicroelectronics (www.st.com) ST200
EM_IP2K = 101, // Ubicom IP2xxx microcontroller family
EM_MAX = 102, // MAX Processor
EM_CR = 103, // National Semiconductor CompactRISC microprocessor
EM_F2MC16 = 104, // Fujitsu F2MC16
EM_MSP430 = 105, // Texas Instruments embedded microcontroller msp430
EM_BLACKFIN = 106, // Analog Devices Blackfin (DSP) processor
EM_SE_C33 = 107, // S1C33 Family of Seiko Epson processors
EM_SEP = 108, // Sharp embedded microprocessor
EM_ARCA = 109, // Arca RISC Microprocessor
EM_UNICORE = 110, // Microprocessor series from PKU-Unity Ltd. and MPRC
// of Peking University
EM_EXCESS = 111, // eXcess: 16/32/64-bit configurable embedded CPU
EM_DXP = 112, // Icera Semiconductor Inc. Deep Execution Processor
EM_ALTERA_NIOS2 = 113, // Altera Nios II soft-core processor
EM_CRX = 114, // National Semiconductor CompactRISC CRX
EM_XGATE = 115, // Motorola XGATE embedded processor
EM_C166 = 116, // Infineon C16x/XC16x processor
EM_M16C = 117, // Renesas M16C series microprocessors
EM_DSPIC30F = 118, // Microchip Technology dsPIC30F Digital Signal
// Controller
EM_CE = 119, // Freescale Communication Engine RISC core
EM_M32C = 120, // Renesas M32C series microprocessors
EM_TSK3000 = 131, // Altium TSK3000 core
EM_RS08 = 132, // Freescale RS08 embedded processor
EM_SHARC = 133, // Analog Devices SHARC family of 32-bit DSP
// processors
EM_ECOG2 = 134, // Cyan Technology eCOG2 microprocessor
EM_SCORE7 = 135, // Sunplus S+core7 RISC processor
EM_DSP24 = 136, // New Japan Radio (NJR) 24-bit DSP Processor
EM_VIDEOCORE3 = 137, // Broadcom VideoCore III processor
EM_LATTICEMICO32 = 138, // RISC processor for Lattice FPGA architecture
EM_SE_C17 = 139, // Seiko Epson C17 family
EM_TI_C6000 = 140, // The Texas Instruments TMS320C6000 DSP family
EM_TI_C2000 = 141, // The Texas Instruments TMS320C2000 DSP family
EM_TI_C5500 = 142, // The Texas Instruments TMS320C55x DSP family
EM_MMDSP_PLUS = 160, // STMicroelectronics 64bit VLIW Data Signal Processor
EM_CYPRESS_M8C = 161, // Cypress M8C microprocessor
EM_R32C = 162, // Renesas R32C series microprocessors
EM_TRIMEDIA = 163, // NXP Semiconductors TriMedia architecture family
EM_HEXAGON = 164, // Qualcomm Hexagon processor
EM_8051 = 165, // Intel 8051 and variants
EM_STXP7X = 166, // STMicroelectronics STxP7x family of configurable
// and extensible RISC processors
EM_NDS32 = 167, // Andes Technology compact code size embedded RISC
// processor family
EM_ECOG1 = 168, // Cyan Technology eCOG1X family
EM_ECOG1X = 168, // Cyan Technology eCOG1X family
EM_MAXQ30 = 169, // Dallas Semiconductor MAXQ30 Core Micro-controllers
EM_XIMO16 = 170, // New Japan Radio (NJR) 16-bit DSP Processor
EM_MANIK = 171, // M2000 Reconfigurable RISC Microprocessor
EM_CRAYNV2 = 172, // Cray Inc. NV2 vector architecture
EM_RX = 173, // Renesas RX family
EM_METAG = 174, // Imagination Technologies META processor
// architecture
EM_MCST_ELBRUS = 175, // MCST Elbrus general purpose hardware architecture
EM_ECOG16 = 176, // Cyan Technology eCOG16 family
EM_CR16 = 177, // National Semiconductor CompactRISC CR16 16-bit
// microprocessor
EM_ETPU = 178, // Freescale Extended Time Processing Unit
EM_SLE9X = 179, // Infineon Technologies SLE9X core
EM_L10M = 180, // Intel L10M
EM_K10M = 181, // Intel K10M
EM_AARCH64 = 183, // ARM AArch64
EM_AVR32 = 185, // Atmel Corporation 32-bit microprocessor family
EM_STM8 = 186, // STMicroeletronics STM8 8-bit microcontroller
EM_TILE64 = 187, // Tilera TILE64 multicore architecture family
EM_TILEPRO = 188, // Tilera TILEPro multicore architecture family
EM_MICROBLAZE = 189, // Xilinx MicroBlaze 32-bit RISC soft processor core
EM_CUDA = 190, // NVIDIA CUDA architecture
EM_TILEGX = 191, // Tilera TILE-Gx multicore architecture family
EM_CLOUDSHIELD = 192, // CloudShield architecture family
EM_COREA_1ST = 193, // KIPO-KAIST Core-A 1st generation processor family
EM_COREA_2ND = 194, // KIPO-KAIST Core-A 2nd generation processor family
EM_ARC_COMPACT2 = 195, // Synopsys ARCompact V2
EM_OPEN8 = 196, // Open8 8-bit RISC soft processor core
EM_RL78 = 197, // Renesas RL78 family
EM_VIDEOCORE5 = 198, // Broadcom VideoCore V processor
EM_78KOR = 199, // Renesas 78KOR family
EM_56800EX = 200, // Freescale 56800EX Digital Signal Controller (DSC)
EM_MBLAZE = 47787 // Xilinx MicroBlaze
};
// Object file classes.
enum { ELFCLASSNONE = 0, ELFCLASS32 = 1, // 32-bit object file
ELFCLASS64 = 2 // 64-bit object file
};
// Object file byte orderings.
enum { ELFDATANONE = 0, // Invalid data encoding.
ELFDATA2LSB = 1, // Little-endian object file
ELFDATA2MSB = 2 // Big-endian object file
};
// OS ABI identification.
enum { ELFOSABI_NONE = 0, // UNIX System V ABI
ELFOSABI_HPUX = 1, // HP-UX operating system
ELFOSABI_NETBSD = 2, // NetBSD
ELFOSABI_LINUX = 3, // GNU/Linux
ELFOSABI_HURD = 4, // GNU/Hurd
ELFOSABI_SOLARIS = 6, // Solaris
ELFOSABI_AIX = 7, // AIX
ELFOSABI_IRIX = 8, // IRIX
ELFOSABI_FREEBSD = 9, // FreeBSD
ELFOSABI_TRU64 = 10, // TRU64 UNIX
ELFOSABI_MODESTO = 11, // Novell Modesto
ELFOSABI_OPENBSD = 12, // OpenBSD
ELFOSABI_OPENVMS = 13, // OpenVMS
ELFOSABI_NSK = 14, // Hewlett-Packard Non-Stop Kernel
ELFOSABI_AROS = 15, // AROS
ELFOSABI_FENIXOS = 16, // FenixOS
ELFOSABI_C6000_ELFABI = 64, // Bare-metal TMS320C6000
ELFOSABI_C6000_LINUX = 65, // Linux TMS320C6000
ELFOSABI_ARM = 97, // ARM
ELFOSABI_STANDALONE = 255 // Standalone (embedded) application
};
// X86_64 relocations.
enum { R_X86_64_NONE = 0, R_X86_64_64 = 1, R_X86_64_PC32 = 2, R_X86_64_GOT32 = 3, R_X86_64_PLT32 = 4, R_X86_64_COPY = 5, R_X86_64_GLOB_DAT = 6, R_X86_64_JUMP_SLOT = 7, R_X86_64_RELATIVE = 8, R_X86_64_GOTPCREL = 9, R_X86_64_32 = 10, R_X86_64_32S = 11, R_X86_64_16 = 12, R_X86_64_PC16 = 13, R_X86_64_8 = 14, R_X86_64_PC8 = 15, R_X86_64_DTPMOD64 = 16, R_X86_64_DTPOFF64 = 17, R_X86_64_TPOFF64 = 18, R_X86_64_TLSGD = 19, R_X86_64_TLSLD = 20, R_X86_64_DTPOFF32 = 21, R_X86_64_GOTTPOFF = 22, R_X86_64_TPOFF32 = 23, R_X86_64_PC64 = 24, R_X86_64_GOTOFF64 = 25, R_X86_64_GOTPC32 = 26, R_X86_64_GOT64 = 27, R_X86_64_GOTPCREL64 = 28, R_X86_64_GOTPC64 = 29, R_X86_64_GOTPLT64 = 30, R_X86_64_PLTOFF64 = 31, R_X86_64_SIZE32 = 32, R_X86_64_SIZE64 = 33, R_X86_64_GOTPC32_TLSDESC = 34, R_X86_64_TLSDESC_CALL = 35, R_X86_64_TLSDESC = 36, R_X86_64_IRELATIVE = 37};
// i386 relocations.
// TODO: this is just a subset
enum { R_386_NONE = 0, R_386_32 = 1, R_386_PC32 = 2, R_386_GOT32 = 3, R_386_PLT32 = 4, R_386_COPY = 5, R_386_GLOB_DAT = 6, R_386_JUMP_SLOT = 7, R_386_RELATIVE = 8, R_386_GOTOFF = 9, R_386_GOTPC = 10, R_386_32PLT = 11, R_386_TLS_TPOFF = 14, R_386_TLS_IE = 15, R_386_TLS_GOTIE = 16, R_386_TLS_LE = 17, R_386_TLS_GD = 18, R_386_TLS_LDM = 19, R_386_16 = 20, R_386_PC16 = 21, R_386_8 = 22, R_386_PC8 = 23, R_386_TLS_GD_32 = 24, R_386_TLS_GD_PUSH = 25, R_386_TLS_GD_CALL = 26, R_386_TLS_GD_POP = 27, R_386_TLS_LDM_32 = 28, R_386_TLS_LDM_PUSH = 29, R_386_TLS_LDM_CALL = 30, R_386_TLS_LDM_POP = 31, R_386_TLS_LDO_32 = 32, R_386_TLS_IE_32 = 33, R_386_TLS_LE_32 = 34, R_386_TLS_DTPMOD32 = 35, R_386_TLS_DTPOFF32 = 36, R_386_TLS_TPOFF32 = 37, R_386_TLS_GOTDESC = 39, R_386_TLS_DESC_CALL = 40, R_386_TLS_DESC = 41, R_386_IRELATIVE = 42, R_386_NUM = 43};
// MBlaze relocations.
enum { R_MICROBLAZE_NONE = 0, R_MICROBLAZE_32 = 1, R_MICROBLAZE_32_PCREL = 2, R_MICROBLAZE_64_PCREL = 3, R_MICROBLAZE_32_PCREL_LO = 4, R_MICROBLAZE_64 = 5, R_MICROBLAZE_32_LO = 6, R_MICROBLAZE_SRO32 = 7, R_MICROBLAZE_SRW32 = 8, R_MICROBLAZE_64_NONE = 9, R_MICROBLAZE_32_SYM_OP_SYM = 10, R_MICROBLAZE_GNU_VTINHERIT = 11, R_MICROBLAZE_GNU_VTENTRY = 12, R_MICROBLAZE_GOTPC_64 = 13, R_MICROBLAZE_GOT_64 = 14, R_MICROBLAZE_PLT_64 = 15, R_MICROBLAZE_REL = 16, R_MICROBLAZE_JUMP_SLOT = 17, R_MICROBLAZE_GLOB_DAT = 18, R_MICROBLAZE_GOTOFF_64 = 19, R_MICROBLAZE_GOTOFF_32 = 20, R_MICROBLAZE_COPY = 21};
// ELF Relocation types for PPC32
enum { R_PPC_NONE = 0, /* No relocation. */ R_PPC_ADDR32 = 1, R_PPC_ADDR24 = 2, R_PPC_ADDR16 = 3, R_PPC_ADDR16_LO = 4, R_PPC_ADDR16_HI = 5, R_PPC_ADDR16_HA = 6, R_PPC_ADDR14 = 7, R_PPC_ADDR14_BRTAKEN = 8, R_PPC_ADDR14_BRNTAKEN = 9, R_PPC_REL24 = 10, R_PPC_REL14 = 11, R_PPC_REL14_BRTAKEN = 12, R_PPC_REL14_BRNTAKEN = 13, R_PPC_REL32 = 26, R_PPC_TPREL16_LO = 70, R_PPC_TPREL16_HA = 72};
// ELF Relocation types for PPC64
enum { R_PPC64_NONE = 0, R_PPC64_ADDR32 = 1, R_PPC64_ADDR16_LO = 4, R_PPC64_ADDR16_HI = 5, R_PPC64_ADDR14 = 7, R_PPC64_REL24 = 10, R_PPC64_REL32 = 26, R_PPC64_ADDR64 = 38, R_PPC64_ADDR16_HIGHER = 39, R_PPC64_ADDR16_HIGHEST = 41, R_PPC64_REL64 = 44, R_PPC64_TOC16 = 47, R_PPC64_TOC16_LO = 48, R_PPC64_TOC16_HA = 50, R_PPC64_TOC = 51, R_PPC64_ADDR16_DS = 56, R_PPC64_ADDR16_LO_DS = 57, R_PPC64_TOC16_DS = 63, R_PPC64_TOC16_LO_DS = 64, R_PPC64_TLS = 67, R_PPC64_TPREL16_LO = 70, R_PPC64_TPREL16_HA = 72, R_PPC64_DTPREL16_LO = 75, R_PPC64_DTPREL16_HA = 77, R_PPC64_GOT_TLSGD16_LO = 80, R_PPC64_GOT_TLSGD16_HA = 82, R_PPC64_GOT_TLSLD16_LO = 84, R_PPC64_GOT_TLSLD16_HA = 86, R_PPC64_GOT_TPREL16_LO_DS = 88, R_PPC64_GOT_TPREL16_HA = 90, R_PPC64_TLSGD = 107, R_PPC64_TLSLD = 108};
// ELF Relocation types for AArch64
enum { R_AARCH64_NONE = 0x100,
R_AARCH64_ABS64 = 0x101, R_AARCH64_ABS32 = 0x102, R_AARCH64_ABS16 = 0x103, R_AARCH64_PREL64 = 0x104, R_AARCH64_PREL32 = 0x105, R_AARCH64_PREL16 = 0x106,
R_AARCH64_MOVW_UABS_G0 = 0x107, R_AARCH64_MOVW_UABS_G0_NC = 0x108, R_AARCH64_MOVW_UABS_G1 = 0x109, R_AARCH64_MOVW_UABS_G1_NC = 0x10a, R_AARCH64_MOVW_UABS_G2 = 0x10b, R_AARCH64_MOVW_UABS_G2_NC = 0x10c, R_AARCH64_MOVW_UABS_G3 = 0x10d, R_AARCH64_MOVW_SABS_G0 = 0x10e, R_AARCH64_MOVW_SABS_G1 = 0x10f, R_AARCH64_MOVW_SABS_G2 = 0x110,
R_AARCH64_LD_PREL_LO19 = 0x111, R_AARCH64_ADR_PREL_LO21 = 0x112, R_AARCH64_ADR_PREL_PG_HI21 = 0x113, R_AARCH64_ADD_ABS_LO12_NC = 0x115, R_AARCH64_LDST8_ABS_LO12_NC = 0x116,
R_AARCH64_TSTBR14 = 0x117, R_AARCH64_CONDBR19 = 0x118, R_AARCH64_JUMP26 = 0x11a, R_AARCH64_CALL26 = 0x11b,
R_AARCH64_LDST16_ABS_LO12_NC = 0x11c, R_AARCH64_LDST32_ABS_LO12_NC = 0x11d, R_AARCH64_LDST64_ABS_LO12_NC = 0x11e,
R_AARCH64_LDST128_ABS_LO12_NC = 0x12b,
R_AARCH64_ADR_GOT_PAGE = 0x137, R_AARCH64_LD64_GOT_LO12_NC = 0x138,
R_AARCH64_TLSLD_MOVW_DTPREL_G2 = 0x20b, R_AARCH64_TLSLD_MOVW_DTPREL_G1 = 0x20c, R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC = 0x20d, R_AARCH64_TLSLD_MOVW_DTPREL_G0 = 0x20e, R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC = 0x20f, R_AARCH64_TLSLD_ADD_DTPREL_HI12 = 0x210, R_AARCH64_TLSLD_ADD_DTPREL_LO12 = 0x211, R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC = 0x212, R_AARCH64_TLSLD_LDST8_DTPREL_LO12 = 0x213, R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC = 0x214, R_AARCH64_TLSLD_LDST16_DTPREL_LO12 = 0x215, R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC = 0x216, R_AARCH64_TLSLD_LDST32_DTPREL_LO12 = 0x217, R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC = 0x218, R_AARCH64_TLSLD_LDST64_DTPREL_LO12 = 0x219, R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC = 0x21a,
R_AARCH64_TLSIE_MOVW_GOTTPREL_G1 = 0x21b, R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC = 0x21c, R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 = 0x21d, R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC = 0x21e, R_AARCH64_TLSIE_LD_GOTTPREL_PREL19 = 0x21f,
R_AARCH64_TLSLE_MOVW_TPREL_G2 = 0x220, R_AARCH64_TLSLE_MOVW_TPREL_G1 = 0x221, R_AARCH64_TLSLE_MOVW_TPREL_G1_NC = 0x222, R_AARCH64_TLSLE_MOVW_TPREL_G0 = 0x223, R_AARCH64_TLSLE_MOVW_TPREL_G0_NC = 0x224, R_AARCH64_TLSLE_ADD_TPREL_HI12 = 0x225, R_AARCH64_TLSLE_ADD_TPREL_LO12 = 0x226, R_AARCH64_TLSLE_ADD_TPREL_LO12_NC = 0x227, R_AARCH64_TLSLE_LDST8_TPREL_LO12 = 0x228, R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC = 0x229, R_AARCH64_TLSLE_LDST16_TPREL_LO12 = 0x22a, R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC = 0x22b, R_AARCH64_TLSLE_LDST32_TPREL_LO12 = 0x22c, R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC = 0x22d, R_AARCH64_TLSLE_LDST64_TPREL_LO12 = 0x22e, R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC = 0x22f,
R_AARCH64_TLSDESC_ADR_PAGE = 0x232, R_AARCH64_TLSDESC_LD64_LO12_NC = 0x233, R_AARCH64_TLSDESC_ADD_LO12_NC = 0x234,
R_AARCH64_TLSDESC_CALL = 0x239};
// ARM Specific e_flags
enum { EF_ARM_SOFT_FLOAT = 0x00000200U, EF_ARM_VFP_FLOAT = 0x00000400U, EF_ARM_EABI_UNKNOWN = 0x00000000U, EF_ARM_EABI_VER1 = 0x01000000U, EF_ARM_EABI_VER2 = 0x02000000U, EF_ARM_EABI_VER3 = 0x03000000U, EF_ARM_EABI_VER4 = 0x04000000U, EF_ARM_EABI_VER5 = 0x05000000U, EF_ARM_EABIMASK = 0xFF000000U};
// ELF Relocation types for ARM
// Meets 2.08 ABI Specs.
enum { R_ARM_NONE = 0x00, R_ARM_PC24 = 0x01, R_ARM_ABS32 = 0x02, R_ARM_REL32 = 0x03, R_ARM_LDR_PC_G0 = 0x04, R_ARM_ABS16 = 0x05, R_ARM_ABS12 = 0x06, R_ARM_THM_ABS5 = 0x07, R_ARM_ABS8 = 0x08, R_ARM_SBREL32 = 0x09, R_ARM_THM_CALL = 0x0a, R_ARM_THM_PC8 = 0x0b, R_ARM_BREL_ADJ = 0x0c, R_ARM_TLS_DESC = 0x0d, R_ARM_THM_SWI8 = 0x0e, R_ARM_XPC25 = 0x0f, R_ARM_THM_XPC22 = 0x10, R_ARM_TLS_DTPMOD32 = 0x11, R_ARM_TLS_DTPOFF32 = 0x12, R_ARM_TLS_TPOFF32 = 0x13, R_ARM_COPY = 0x14, R_ARM_GLOB_DAT = 0x15, R_ARM_JUMP_SLOT = 0x16, R_ARM_RELATIVE = 0x17, R_ARM_GOTOFF32 = 0x18, R_ARM_BASE_PREL = 0x19, R_ARM_GOT_BREL = 0x1a, R_ARM_PLT32 = 0x1b, R_ARM_CALL = 0x1c, R_ARM_JUMP24 = 0x1d, R_ARM_THM_JUMP24 = 0x1e, R_ARM_BASE_ABS = 0x1f, R_ARM_ALU_PCREL_7_0 = 0x20, R_ARM_ALU_PCREL_15_8 = 0x21, R_ARM_ALU_PCREL_23_15 = 0x22, R_ARM_LDR_SBREL_11_0_NC = 0x23, R_ARM_ALU_SBREL_19_12_NC = 0x24, R_ARM_ALU_SBREL_27_20_CK = 0x25, R_ARM_TARGET1 = 0x26, R_ARM_SBREL31 = 0x27, R_ARM_V4BX = 0x28, R_ARM_TARGET2 = 0x29, R_ARM_PREL31 = 0x2a, R_ARM_MOVW_ABS_NC = 0x2b, R_ARM_MOVT_ABS = 0x2c, R_ARM_MOVW_PREL_NC = 0x2d, R_ARM_MOVT_PREL = 0x2e, R_ARM_THM_MOVW_ABS_NC = 0x2f, R_ARM_THM_MOVT_ABS = 0x30, R_ARM_THM_MOVW_PREL_NC = 0x31, R_ARM_THM_MOVT_PREL = 0x32, R_ARM_THM_JUMP19 = 0x33, R_ARM_THM_JUMP6 = 0x34, R_ARM_THM_ALU_PREL_11_0 = 0x35, R_ARM_THM_PC12 = 0x36, R_ARM_ABS32_NOI = 0x37, R_ARM_REL32_NOI = 0x38, R_ARM_ALU_PC_G0_NC = 0x39, R_ARM_ALU_PC_G0 = 0x3a, R_ARM_ALU_PC_G1_NC = 0x3b, R_ARM_ALU_PC_G1 = 0x3c, R_ARM_ALU_PC_G2 = 0x3d, R_ARM_LDR_PC_G1 = 0x3e, R_ARM_LDR_PC_G2 = 0x3f, R_ARM_LDRS_PC_G0 = 0x40, R_ARM_LDRS_PC_G1 = 0x41, R_ARM_LDRS_PC_G2 = 0x42, R_ARM_LDC_PC_G0 = 0x43, R_ARM_LDC_PC_G1 = 0x44, R_ARM_LDC_PC_G2 = 0x45, R_ARM_ALU_SB_G0_NC = 0x46, R_ARM_ALU_SB_G0 = 0x47, R_ARM_ALU_SB_G1_NC = 0x48, R_ARM_ALU_SB_G1 = 0x49, R_ARM_ALU_SB_G2 = 0x4a, R_ARM_LDR_SB_G0 = 0x4b, R_ARM_LDR_SB_G1 = 0x4c, R_ARM_LDR_SB_G2 = 0x4d, R_ARM_LDRS_SB_G0 = 0x4e, R_ARM_LDRS_SB_G1 = 0x4f, R_ARM_LDRS_SB_G2 = 0x50, R_ARM_LDC_SB_G0 = 0x51, R_ARM_LDC_SB_G1 = 0x52, R_ARM_LDC_SB_G2 = 0x53, R_ARM_MOVW_BREL_NC = 0x54, R_ARM_MOVT_BREL = 0x55, R_ARM_MOVW_BREL = 0x56, R_ARM_THM_MOVW_BREL_NC = 0x57, R_ARM_THM_MOVT_BREL = 0x58, R_ARM_THM_MOVW_BREL = 0x59, R_ARM_TLS_GOTDESC = 0x5a, R_ARM_TLS_CALL = 0x5b, R_ARM_TLS_DESCSEQ = 0x5c, R_ARM_THM_TLS_CALL = 0x5d, R_ARM_PLT32_ABS = 0x5e, R_ARM_GOT_ABS = 0x5f, R_ARM_GOT_PREL = 0x60, R_ARM_GOT_BREL12 = 0x61, R_ARM_GOTOFF12 = 0x62, R_ARM_GOTRELAX = 0x63, R_ARM_GNU_VTENTRY = 0x64, R_ARM_GNU_VTINHERIT = 0x65, R_ARM_THM_JUMP11 = 0x66, R_ARM_THM_JUMP8 = 0x67, R_ARM_TLS_GD32 = 0x68, R_ARM_TLS_LDM32 = 0x69, R_ARM_TLS_LDO32 = 0x6a, R_ARM_TLS_IE32 = 0x6b, R_ARM_TLS_LE32 = 0x6c, R_ARM_TLS_LDO12 = 0x6d, R_ARM_TLS_LE12 = 0x6e, R_ARM_TLS_IE12GP = 0x6f, R_ARM_PRIVATE_0 = 0x70, R_ARM_PRIVATE_1 = 0x71, R_ARM_PRIVATE_2 = 0x72, R_ARM_PRIVATE_3 = 0x73, R_ARM_PRIVATE_4 = 0x74, R_ARM_PRIVATE_5 = 0x75, R_ARM_PRIVATE_6 = 0x76, R_ARM_PRIVATE_7 = 0x77, R_ARM_PRIVATE_8 = 0x78, R_ARM_PRIVATE_9 = 0x79, R_ARM_PRIVATE_10 = 0x7a, R_ARM_PRIVATE_11 = 0x7b, R_ARM_PRIVATE_12 = 0x7c, R_ARM_PRIVATE_13 = 0x7d, R_ARM_PRIVATE_14 = 0x7e, R_ARM_PRIVATE_15 = 0x7f, R_ARM_ME_TOO = 0x80, R_ARM_THM_TLS_DESCSEQ16 = 0x81, R_ARM_THM_TLS_DESCSEQ32 = 0x82};
// Mips Specific e_flags
enum { EF_MIPS_NOREORDER = 0x00000001, // Don't reorder instructions
EF_MIPS_PIC = 0x00000002, // Position independent code
EF_MIPS_CPIC = 0x00000004, // Call object with Position independent code
EF_MIPS_ABI_O32 = 0x00001000, // This file follows the first MIPS 32 bit ABI
//ARCH_ASE
EF_MIPS_MICROMIPS = 0x02000000, // microMIPS
EF_MIPS_ARCH_ASE_M16 = 0x04000000, // Has Mips-16 ISA extensions
//ARCH
EF_MIPS_ARCH_1 = 0x00000000, // MIPS1 instruction set
EF_MIPS_ARCH_2 = 0x10000000, // MIPS2 instruction set
EF_MIPS_ARCH_3 = 0x20000000, // MIPS3 instruction set
EF_MIPS_ARCH_4 = 0x30000000, // MIPS4 instruction set
EF_MIPS_ARCH_5 = 0x40000000, // MIPS5 instruction set
EF_MIPS_ARCH_32 = 0x50000000, // MIPS32 instruction set per linux not elf.h
EF_MIPS_ARCH_64 = 0x60000000, // MIPS64 instruction set per linux not elf.h
EF_MIPS_ARCH_32R2 = 0x70000000, // mips32r2
EF_MIPS_ARCH_64R2 = 0x80000000, // mips64r2
EF_MIPS_ARCH = 0xf0000000 // Mask for applying EF_MIPS_ARCH_ variant
};
// ELF Relocation types for Mips
// .
enum { R_MIPS_NONE = 0, R_MIPS_16 = 1, R_MIPS_32 = 2, R_MIPS_REL32 = 3, R_MIPS_26 = 4, R_MIPS_HI16 = 5, R_MIPS_LO16 = 6, R_MIPS_GPREL16 = 7, R_MIPS_LITERAL = 8, R_MIPS_GOT16 = 9, R_MIPS_GOT = 9, R_MIPS_PC16 = 10, R_MIPS_CALL16 = 11, R_MIPS_GPREL32 = 12, R_MIPS_SHIFT5 = 16, R_MIPS_SHIFT6 = 17, R_MIPS_64 = 18, R_MIPS_GOT_DISP = 19, R_MIPS_GOT_PAGE = 20, R_MIPS_GOT_OFST = 21, R_MIPS_GOT_HI16 = 22, R_MIPS_GOT_LO16 = 23, R_MIPS_SUB = 24, R_MIPS_INSERT_A = 25, R_MIPS_INSERT_B = 26, R_MIPS_DELETE = 27, R_MIPS_HIGHER = 28, R_MIPS_HIGHEST = 29, R_MIPS_CALL_HI16 = 30, R_MIPS_CALL_LO16 = 31, R_MIPS_SCN_DISP = 32, R_MIPS_REL16 = 33, R_MIPS_ADD_IMMEDIATE = 34, R_MIPS_PJUMP = 35, R_MIPS_RELGOT = 36, R_MIPS_JALR = 37, R_MIPS_TLS_DTPMOD32 = 38, R_MIPS_TLS_DTPREL32 = 39, R_MIPS_TLS_DTPMOD64 = 40, R_MIPS_TLS_DTPREL64 = 41, R_MIPS_TLS_GD = 42, R_MIPS_TLS_LDM = 43, R_MIPS_TLS_DTPREL_HI16 = 44, R_MIPS_TLS_DTPREL_LO16 = 45, R_MIPS_TLS_GOTTPREL = 46, R_MIPS_TLS_TPREL32 = 47, R_MIPS_TLS_TPREL64 = 48, R_MIPS_TLS_TPREL_HI16 = 49, R_MIPS_TLS_TPREL_LO16 = 50, R_MIPS_GLOB_DAT = 51, R_MIPS_COPY = 126, R_MIPS_JUMP_SLOT = 127, R_MIPS_NUM = 218};
// Special values for the st_other field in the symbol table entry for MIPS.
enum { STO_MIPS_MICROMIPS = 0x80 // MIPS Specific ISA for MicroMips
};
// Hexagon Specific e_flags
// Release 5 ABI
enum { // Object processor version flags, bits[3:0]
EF_HEXAGON_MACH_V2 = 0x00000001, // Hexagon V2
EF_HEXAGON_MACH_V3 = 0x00000002, // Hexagon V3
EF_HEXAGON_MACH_V4 = 0x00000003, // Hexagon V4
EF_HEXAGON_MACH_V5 = 0x00000004, // Hexagon V5
// Highest ISA version flags
EF_HEXAGON_ISA_MACH = 0x00000000, // Same as specified in bits[3:0]
// of e_flags
EF_HEXAGON_ISA_V2 = 0x00000010, // Hexagon V2 ISA
EF_HEXAGON_ISA_V3 = 0x00000020, // Hexagon V3 ISA
EF_HEXAGON_ISA_V4 = 0x00000030, // Hexagon V4 ISA
EF_HEXAGON_ISA_V5 = 0x00000040 // Hexagon V5 ISA
};
// Hexagon specific Section indexes for common small data
// Release 5 ABI
enum { SHN_HEXAGON_SCOMMON = 0xff00, // Other access sizes
SHN_HEXAGON_SCOMMON_1 = 0xff01, // Byte-sized access
SHN_HEXAGON_SCOMMON_2 = 0xff02, // Half-word-sized access
SHN_HEXAGON_SCOMMON_4 = 0xff03, // Word-sized access
SHN_HEXAGON_SCOMMON_8 = 0xff04 // Double-word-size access
};
// ELF Relocation types for Hexagon
// Release 5 ABI
enum { R_HEX_NONE = 0, R_HEX_B22_PCREL = 1, R_HEX_B15_PCREL = 2, R_HEX_B7_PCREL = 3, R_HEX_LO16 = 4, R_HEX_HI16 = 5, R_HEX_32 = 6, R_HEX_16 = 7, R_HEX_8 = 8, R_HEX_GPREL16_0 = 9, R_HEX_GPREL16_1 = 10, R_HEX_GPREL16_2 = 11, R_HEX_GPREL16_3 = 12, R_HEX_HL16 = 13, R_HEX_B13_PCREL = 14, R_HEX_B9_PCREL = 15, R_HEX_B32_PCREL_X = 16, R_HEX_32_6_X = 17, R_HEX_B22_PCREL_X = 18, R_HEX_B15_PCREL_X = 19, R_HEX_B13_PCREL_X = 20, R_HEX_B9_PCREL_X = 21, R_HEX_B7_PCREL_X = 22, R_HEX_16_X = 23, R_HEX_12_X = 24, R_HEX_11_X = 25, R_HEX_10_X = 26, R_HEX_9_X = 27, R_HEX_8_X = 28, R_HEX_7_X = 29, R_HEX_6_X = 30, R_HEX_32_PCREL = 31, R_HEX_COPY = 32, R_HEX_GLOB_DAT = 33, R_HEX_JMP_SLOT = 34, R_HEX_RELATIVE = 35, R_HEX_PLT_B22_PCREL = 36, R_HEX_GOTREL_LO16 = 37, R_HEX_GOTREL_HI16 = 38, R_HEX_GOTREL_32 = 39, R_HEX_GOT_LO16 = 40, R_HEX_GOT_HI16 = 41, R_HEX_GOT_32 = 42, R_HEX_GOT_16 = 43, R_HEX_DTPMOD_32 = 44, R_HEX_DTPREL_LO16 = 45, R_HEX_DTPREL_HI16 = 46, R_HEX_DTPREL_32 = 47, R_HEX_DTPREL_16 = 48, R_HEX_GD_PLT_B22_PCREL = 49, R_HEX_GD_GOT_LO16 = 50, R_HEX_GD_GOT_HI16 = 51, R_HEX_GD_GOT_32 = 52, R_HEX_GD_GOT_16 = 53, R_HEX_IE_LO16 = 54, R_HEX_IE_HI16 = 55, R_HEX_IE_32 = 56, R_HEX_IE_GOT_LO16 = 57, R_HEX_IE_GOT_HI16 = 58, R_HEX_IE_GOT_32 = 59, R_HEX_IE_GOT_16 = 60, R_HEX_TPREL_LO16 = 61, R_HEX_TPREL_HI16 = 62, R_HEX_TPREL_32 = 63, R_HEX_TPREL_16 = 64, R_HEX_6_PCREL_X = 65, R_HEX_GOTREL_32_6_X = 66, R_HEX_GOTREL_16_X = 67, R_HEX_GOTREL_11_X = 68, R_HEX_GOT_32_6_X = 69, R_HEX_GOT_16_X = 70, R_HEX_GOT_11_X = 71, R_HEX_DTPREL_32_6_X = 72, R_HEX_DTPREL_16_X = 73, R_HEX_DTPREL_11_X = 74, R_HEX_GD_GOT_32_6_X = 75, R_HEX_GD_GOT_16_X = 76, R_HEX_GD_GOT_11_X = 77, R_HEX_IE_32_6_X = 78, R_HEX_IE_16_X = 79, R_HEX_IE_GOT_32_6_X = 80, R_HEX_IE_GOT_16_X = 81, R_HEX_IE_GOT_11_X = 82, R_HEX_TPREL_32_6_X = 83, R_HEX_TPREL_16_X = 84, R_HEX_TPREL_11_X = 85};
// Section header.
struct Elf32_Shdr { Elf32_Word sh_name; // Section name (index into string table)
Elf32_Word sh_type; // Section type (SHT_*)
Elf32_Word sh_flags; // Section flags (SHF_*)
Elf32_Addr sh_addr; // Address where section is to be loaded
Elf32_Off sh_offset; // File offset of section data, in bytes
Elf32_Word sh_size; // Size of section, in bytes
Elf32_Word sh_link; // Section type-specific header table index link
Elf32_Word sh_info; // Section type-specific extra information
Elf32_Word sh_addralign; // Section address alignment
Elf32_Word sh_entsize; // Size of records contained within the section
};
// Section header for ELF64 - same fields as ELF32, different types.
struct Elf64_Shdr { Elf64_Word sh_name; Elf64_Word sh_type; Elf64_Xword sh_flags; Elf64_Addr sh_addr; Elf64_Off sh_offset; Elf64_Xword sh_size; Elf64_Word sh_link; Elf64_Word sh_info; Elf64_Xword sh_addralign; Elf64_Xword sh_entsize;};
// Special section indices.
enum { SHN_UNDEF = 0, // Undefined, missing, irrelevant, or meaningless
SHN_LORESERVE = 0xff00, // Lowest reserved index
SHN_LOPROC = 0xff00, // Lowest processor-specific index
SHN_HIPROC = 0xff1f, // Highest processor-specific index
SHN_LOOS = 0xff20, // Lowest operating system-specific index
SHN_HIOS = 0xff3f, // Highest operating system-specific index
SHN_ABS = 0xfff1, // Symbol has absolute value; does not need relocation
SHN_COMMON = 0xfff2, // FORTRAN COMMON or C external global variables
SHN_XINDEX = 0xffff, // Mark that the index is >= SHN_LORESERVE
SHN_HIRESERVE = 0xffff // Highest reserved index
};
// Section types.
enum { SHT_NULL = 0, // No associated section (inactive entry).
SHT_PROGBITS = 1, // Program-defined contents.
SHT_SYMTAB = 2, // Symbol table.
SHT_STRTAB = 3, // String table.
SHT_RELA = 4, // Relocation entries; explicit addends.
SHT_HASH = 5, // Symbol hash table.
SHT_DYNAMIC = 6, // Information for dynamic linking.
SHT_NOTE = 7, // Information about the file.
SHT_NOBITS = 8, // Data occupies no space in the file.
SHT_REL = 9, // Relocation entries; no explicit addends.
SHT_SHLIB = 10, // Reserved.
SHT_DYNSYM = 11, // Symbol table.
SHT_INIT_ARRAY = 14, // Pointers to initialization functions.
SHT_FINI_ARRAY = 15, // Pointers to termination functions.
SHT_PREINIT_ARRAY = 16, // Pointers to pre-init functions.
SHT_GROUP = 17, // Section group.
SHT_SYMTAB_SHNDX = 18, // Indices for SHN_XINDEX entries.
SHT_LOOS = 0x60000000, // Lowest operating system-specific type.
SHT_GNU_ATTRIBUTES= 0x6ffffff5, // Object attributes.
SHT_GNU_HASH = 0x6ffffff6, // GNU-style hash table.
SHT_GNU_verdef = 0x6ffffffd, // GNU version definitions.
SHT_GNU_verneed = 0x6ffffffe, // GNU version references.
SHT_GNU_versym = 0x6fffffff, // GNU symbol versions table.
SHT_HIOS = 0x6fffffff, // Highest operating system-specific type.
SHT_LOPROC = 0x70000000, // Lowest processor arch-specific type.
// Fixme: All this is duplicated in MCSectionELF. Why??
// Exception Index table
SHT_ARM_EXIDX = 0x70000001U, // BPABI DLL dynamic linking pre-emption map
SHT_ARM_PREEMPTMAP = 0x70000002U, // Object file compatibility attributes
SHT_ARM_ATTRIBUTES = 0x70000003U, SHT_ARM_DEBUGOVERLAY = 0x70000004U, SHT_ARM_OVERLAYSECTION = 0x70000005U, SHT_HEX_ORDERED = 0x70000000, // Link editor is to sort the entries in
// this section based on their sizes
SHT_X86_64_UNWIND = 0x70000001, // Unwind information
SHT_MIPS_REGINFO = 0x70000006, // Register usage information
SHT_MIPS_OPTIONS = 0x7000000d, // General options
SHT_HIPROC = 0x7fffffff, // Highest processor arch-specific type.
SHT_LOUSER = 0x80000000, // Lowest type reserved for applications.
SHT_HIUSER = 0xffffffff // Highest type reserved for applications.
};
// Section flags.
enum { // Section data should be writable during execution.
SHF_WRITE = 0x1,
// Section occupies memory during program execution.
SHF_ALLOC = 0x2,
// Section contains executable machine instructions.
SHF_EXECINSTR = 0x4,
// The data in this section may be merged.
SHF_MERGE = 0x10,
// The data in this section is null-terminated strings.
SHF_STRINGS = 0x20,
// A field in this section holds a section header table index.
SHF_INFO_LINK = 0x40U,
// Adds special ordering requirements for link editors.
SHF_LINK_ORDER = 0x80U,
// This section requires special OS-specific processing to avoid incorrect
// behavior.
SHF_OS_NONCONFORMING = 0x100U,
// This section is a member of a section group.
SHF_GROUP = 0x200U,
// This section holds Thread-Local Storage.
SHF_TLS = 0x400U,
// Start of target-specific flags.
/// XCORE_SHF_CP_SECTION - All sections with the "c" flag are grouped
/// together by the linker to form the constant pool and the cp register is
/// set to the start of the constant pool by the boot code.
XCORE_SHF_CP_SECTION = 0x800U,
/// XCORE_SHF_DP_SECTION - All sections with the "d" flag are grouped
/// together by the linker to form the data section and the dp register is
/// set to the start of the section by the boot code.
XCORE_SHF_DP_SECTION = 0x1000U,
SHF_MASKOS = 0x0ff00000,
// Bits indicating processor-specific flags.
SHF_MASKPROC = 0xf0000000,
// If an object file section does not have this flag set, then it may not hold
// more than 2GB and can be freely referred to in objects using smaller code
// models. Otherwise, only objects using larger code models can refer to them.
// For example, a medium code model object can refer to data in a section that
// sets this flag besides being able to refer to data in a section that does
// not set it; likewise, a small code model object can refer only to code in a
// section that does not set this flag.
SHF_X86_64_LARGE = 0x10000000,
// All sections with the GPREL flag are grouped into a global data area
// for faster accesses
SHF_HEX_GPREL = 0x10000000,
// Do not strip this section. FIXME: We need target specific SHF_ enums.
SHF_MIPS_NOSTRIP = 0x8000000};
// Section Group Flags
enum { GRP_COMDAT = 0x1, GRP_MASKOS = 0x0ff00000, GRP_MASKPROC = 0xf0000000};
// Symbol table entries for ELF32.
struct Elf32_Sym { Elf32_Word st_name; // Symbol name (index into string table)
Elf32_Addr st_value; // Value or address associated with the symbol
Elf32_Word st_size; // Size of the symbol
unsigned char st_info; // Symbol's type and binding attributes
unsigned char st_other; // Must be zero; reserved
Elf32_Half st_shndx; // Which section (header table index) it's defined in
// These accessors and mutators correspond to the ELF32_ST_BIND,
// ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
unsigned char getBinding() const { return st_info >> 4; } unsigned char getType() const { return st_info & 0x0f; } void setBinding(unsigned char b) { setBindingAndType(b, getType()); } void setType(unsigned char t) { setBindingAndType(getBinding(), t); } void setBindingAndType(unsigned char b, unsigned char t) { st_info = (b << 4) + (t & 0x0f); }};
// Symbol table entries for ELF64.
struct Elf64_Sym { Elf64_Word st_name; // Symbol name (index into string table)
unsigned char st_info; // Symbol's type and binding attributes
unsigned char st_other; // Must be zero; reserved
Elf64_Half st_shndx; // Which section (header tbl index) it's defined in
Elf64_Addr st_value; // Value or address associated with the symbol
Elf64_Xword st_size; // Size of the symbol
// These accessors and mutators are identical to those defined for ELF32
// symbol table entries.
unsigned char getBinding() const { return st_info >> 4; } unsigned char getType() const { return st_info & 0x0f; } void setBinding(unsigned char b) { setBindingAndType(b, getType()); } void setType(unsigned char t) { setBindingAndType(getBinding(), t); } void setBindingAndType(unsigned char b, unsigned char t) { st_info = (b << 4) + (t & 0x0f); }};
// The size (in bytes) of symbol table entries.
enum { SYMENTRY_SIZE32 = 16, // 32-bit symbol entry size
SYMENTRY_SIZE64 = 24 // 64-bit symbol entry size.
};
// Symbol bindings.
enum { STB_LOCAL = 0, // Local symbol, not visible outside obj file containing def
STB_GLOBAL = 1, // Global symbol, visible to all object files being combined
STB_WEAK = 2, // Weak symbol, like global but lower-precedence
STB_LOOS = 10, // Lowest operating system-specific binding type
STB_HIOS = 12, // Highest operating system-specific binding type
STB_LOPROC = 13, // Lowest processor-specific binding type
STB_HIPROC = 15 // Highest processor-specific binding type
};
// Symbol types.
enum { STT_NOTYPE = 0, // Symbol's type is not specified
STT_OBJECT = 1, // Symbol is a data object (variable, array, etc.)
STT_FUNC = 2, // Symbol is executable code (function, etc.)
STT_SECTION = 3, // Symbol refers to a section
STT_FILE = 4, // Local, absolute symbol that refers to a file
STT_COMMON = 5, // An uninitialized common block
STT_TLS = 6, // Thread local data object
STT_LOOS = 7, // Lowest operating system-specific symbol type
STT_HIOS = 8, // Highest operating system-specific symbol type
STT_GNU_IFUNC = 10, // GNU indirect function
STT_LOPROC = 13, // Lowest processor-specific symbol type
STT_HIPROC = 15 // Highest processor-specific symbol type
};
enum { STV_DEFAULT = 0, // Visibility is specified by binding type
STV_INTERNAL = 1, // Defined by processor supplements
STV_HIDDEN = 2, // Not visible to other components
STV_PROTECTED = 3 // Visible in other components but not preemptable
};
// Symbol number.
enum { STN_UNDEF = 0};
// Relocation entry, without explicit addend.
struct Elf32_Rel { Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr)
Elf32_Word r_info; // Symbol table index and type of relocation to apply
// These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
// and ELF32_R_INFO macros defined in the ELF specification:
Elf32_Word getSymbol() const { return (r_info >> 8); } unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); } void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); } void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf32_Word s, unsigned char t) { r_info = (s << 8) + t; }};
// Relocation entry with explicit addend.
struct Elf32_Rela { Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr)
Elf32_Word r_info; // Symbol table index and type of relocation to apply
Elf32_Sword r_addend; // Compute value for relocatable field by adding this
// These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
// and ELF32_R_INFO macros defined in the ELF specification:
Elf32_Word getSymbol() const { return (r_info >> 8); } unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); } void setSymbol(Elf32_Word s) { setSymbolAndType(s, getType()); } void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf32_Word s, unsigned char t) { r_info = (s << 8) + t; }};
// Relocation entry, without explicit addend.
struct Elf64_Rel { Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
Elf64_Xword r_info; // Symbol table index and type of relocation to apply.
// These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
// and ELF64_R_INFO macros defined in the ELF specification:
Elf64_Word getSymbol() const { return (r_info >> 32); } Elf64_Word getType() const { return (Elf64_Word) (r_info & 0xffffffffL); } void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); } void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf64_Word s, Elf64_Word t) { r_info = ((Elf64_Xword)s << 32) + (t&0xffffffffL); }};
// Relocation entry with explicit addend.
struct Elf64_Rela { Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
Elf64_Xword r_info; // Symbol table index and type of relocation to apply.
Elf64_Sxword r_addend; // Compute value for relocatable field by adding this.
// These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
// and ELF64_R_INFO macros defined in the ELF specification:
Elf64_Word getSymbol() const { return (r_info >> 32); } Elf64_Word getType() const { return (Elf64_Word) (r_info & 0xffffffffL); } void setSymbol(Elf64_Word s) { setSymbolAndType(s, getType()); } void setType(Elf64_Word t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf64_Word s, Elf64_Word t) { r_info = ((Elf64_Xword)s << 32) + (t&0xffffffffL); }};
// Program header for ELF32.
struct Elf32_Phdr { Elf32_Word p_type; // Type of segment
Elf32_Off p_offset; // File offset where segment is located, in bytes
Elf32_Addr p_vaddr; // Virtual address of beginning of segment
Elf32_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
Elf32_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
Elf32_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
Elf32_Word p_flags; // Segment flags
Elf32_Word p_align; // Segment alignment constraint
};
// Program header for ELF64.
struct Elf64_Phdr { Elf64_Word p_type; // Type of segment
Elf64_Word p_flags; // Segment flags
Elf64_Off p_offset; // File offset where segment is located, in bytes
Elf64_Addr p_vaddr; // Virtual address of beginning of segment
Elf64_Addr p_paddr; // Physical addr of beginning of segment (OS-specific)
Elf64_Xword p_filesz; // Num. of bytes in file image of segment (may be zero)
Elf64_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero)
Elf64_Xword p_align; // Segment alignment constraint
};
// Segment types.
enum { PT_NULL = 0, // Unused segment.
PT_LOAD = 1, // Loadable segment.
PT_DYNAMIC = 2, // Dynamic linking information.
PT_INTERP = 3, // Interpreter pathname.
PT_NOTE = 4, // Auxiliary information.
PT_SHLIB = 5, // Reserved.
PT_PHDR = 6, // The program header table itself.
PT_TLS = 7, // The thread-local storage template.
PT_LOOS = 0x60000000, // Lowest operating system-specific pt entry type.
PT_HIOS = 0x6fffffff, // Highest operating system-specific pt entry type.
PT_LOPROC = 0x70000000, // Lowest processor-specific program hdr entry type.
PT_HIPROC = 0x7fffffff, // Highest processor-specific program hdr entry type.
// x86-64 program header types.
// These all contain stack unwind tables.
PT_GNU_EH_FRAME = 0x6474e550, PT_SUNW_EH_FRAME = 0x6474e550, PT_SUNW_UNWIND = 0x6464e550,
PT_GNU_STACK = 0x6474e551, // Indicates stack executability.
PT_GNU_RELRO = 0x6474e552, // Read-only after relocation.
// ARM program header types.
PT_ARM_ARCHEXT = 0x70000000, // Platform architecture compatibility info
// These all contain stack unwind tables.
PT_ARM_EXIDX = 0x70000001, PT_ARM_UNWIND = 0x70000001};
// Segment flag bits.
enum { PF_X = 1, // Execute
PF_W = 2, // Write
PF_R = 4, // Read
PF_MASKOS = 0x0ff00000,// Bits for operating system-specific semantics.
PF_MASKPROC = 0xf0000000 // Bits for processor-specific semantics.
};
// Dynamic table entry for ELF32.
struct Elf32_Dyn{ Elf32_Sword d_tag; // Type of dynamic table entry.
union { Elf32_Word d_val; // Integer value of entry.
Elf32_Addr d_ptr; // Pointer value of entry.
} d_un;};
// Dynamic table entry for ELF64.
struct Elf64_Dyn{ Elf64_Sxword d_tag; // Type of dynamic table entry.
union { Elf64_Xword d_val; // Integer value of entry.
Elf64_Addr d_ptr; // Pointer value of entry.
} d_un;};
// Dynamic table entry tags.
enum { DT_NULL = 0, // Marks end of dynamic array.
DT_NEEDED = 1, // String table offset of needed library.
DT_PLTRELSZ = 2, // Size of relocation entries in PLT.
DT_PLTGOT = 3, // Address associated with linkage table.
DT_HASH = 4, // Address of symbolic hash table.
DT_STRTAB = 5, // Address of dynamic string table.
DT_SYMTAB = 6, // Address of dynamic symbol table.
DT_RELA = 7, // Address of relocation table (Rela entries).
DT_RELASZ = 8, // Size of Rela relocation table.
DT_RELAENT = 9, // Size of a Rela relocation entry.
DT_STRSZ = 10, // Total size of the string table.
DT_SYMENT = 11, // Size of a symbol table entry.
DT_INIT = 12, // Address of initialization function.
DT_FINI = 13, // Address of termination function.
DT_SONAME = 14, // String table offset of a shared objects name.
DT_RPATH = 15, // String table offset of library search path.
DT_SYMBOLIC = 16, // Changes symbol resolution algorithm.
DT_REL = 17, // Address of relocation table (Rel entries).
DT_RELSZ = 18, // Size of Rel relocation table.
DT_RELENT = 19, // Size of a Rel relocation entry.
DT_PLTREL = 20, // Type of relocation entry used for linking.
DT_DEBUG = 21, // Reserved for debugger.
DT_TEXTREL = 22, // Relocations exist for non-writable segments.
DT_JMPREL = 23, // Address of relocations associated with PLT.
DT_BIND_NOW = 24, // Process all relocations before execution.
DT_INIT_ARRAY = 25, // Pointer to array of initialization functions.
DT_FINI_ARRAY = 26, // Pointer to array of termination functions.
DT_INIT_ARRAYSZ = 27, // Size of DT_INIT_ARRAY.
DT_FINI_ARRAYSZ = 28, // Size of DT_FINI_ARRAY.
DT_RUNPATH = 29, // String table offset of lib search path.
DT_FLAGS = 30, // Flags.
DT_ENCODING = 32, // Values from here to DT_LOOS follow the rules
// for the interpretation of the d_un union.
DT_PREINIT_ARRAY = 32, // Pointer to array of preinit functions.
DT_PREINIT_ARRAYSZ = 33, // Size of the DT_PREINIT_ARRAY array.
DT_LOOS = 0x60000000, // Start of environment specific tags.
DT_HIOS = 0x6FFFFFFF, // End of environment specific tags.
DT_LOPROC = 0x70000000, // Start of processor specific tags.
DT_HIPROC = 0x7FFFFFFF, // End of processor specific tags.
DT_RELACOUNT = 0x6FFFFFF9, // ELF32_Rela count.
DT_RELCOUNT = 0x6FFFFFFA, // ELF32_Rel count.
DT_FLAGS_1 = 0X6FFFFFFB, // Flags_1.
DT_VERDEF = 0X6FFFFFFC, // The address of the version definition table.
DT_VERDEFNUM = 0X6FFFFFFD, // The number of entries in DT_VERDEF.
DT_VERNEED = 0X6FFFFFFE, // The address of the version Dependency table.
DT_VERNEEDNUM = 0X6FFFFFFF // The number of entries in DT_VERNEED.
};
// DT_FLAGS values.
enum { DF_ORIGIN = 0x01, // The object may reference $ORIGIN.
DF_SYMBOLIC = 0x02, // Search the shared lib before searching the exe.
DF_TEXTREL = 0x04, // Relocations may modify a non-writable segment.
DF_BIND_NOW = 0x08, // Process all relocations on load.
DF_STATIC_TLS = 0x10 // Reject attempts to load dynamically.
};
// State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 entry.
enum { DF_1_NOW = 0x00000001, // Set RTLD_NOW for this object.
DF_1_GLOBAL = 0x00000002, // Set RTLD_GLOBAL for this object.
DF_1_GROUP = 0x00000004, // Set RTLD_GROUP for this object.
DF_1_NODELETE = 0x00000008, // Set RTLD_NODELETE for this object.
DF_1_LOADFLTR = 0x00000010, // Trigger filtee loading at runtime.
DF_1_INITFIRST = 0x00000020, // Set RTLD_INITFIRST for this object.
DF_1_NOOPEN = 0x00000040, // Set RTLD_NOOPEN for this object.
DF_1_ORIGIN = 0x00000080, // $ORIGIN must be handled.
DF_1_DIRECT = 0x00000100, // Direct binding enabled.
DF_1_TRANS = 0x00000200, DF_1_INTERPOSE = 0x00000400, // Object is used to interpose.
DF_1_NODEFLIB = 0x00000800, // Ignore default lib search path.
DF_1_NODUMP = 0x00001000, // Object can't be dldump'ed.
DF_1_CONFALT = 0x00002000, // Configuration alternative created.
DF_1_ENDFILTEE = 0x00004000, // Filtee terminates filters search.
DF_1_DISPRELDNE = 0x00008000, // Disp reloc applied at build time.
DF_1_DISPRELPND = 0x00010000 // Disp reloc applied at run-time.
};
// ElfXX_VerDef structure version (GNU versioning)
enum { VER_DEF_NONE = 0, VER_DEF_CURRENT = 1};
// VerDef Flags (ElfXX_VerDef::vd_flags)
enum { VER_FLG_BASE = 0x1, VER_FLG_WEAK = 0x2, VER_FLG_INFO = 0x4};
// Special constants for the version table. (SHT_GNU_versym/.gnu.version)
enum { VER_NDX_LOCAL = 0, // Unversioned local symbol
VER_NDX_GLOBAL = 1, // Unversioned global symbol
VERSYM_VERSION = 0x7fff, // Version Index mask
VERSYM_HIDDEN = 0x8000 // Hidden bit (non-default version)
};
// ElfXX_VerNeed structure version (GNU versioning)
enum { VER_NEED_NONE = 0, VER_NEED_CURRENT = 1};
} // end namespace ELF
} // end namespace llvm
#endif
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