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|
#ifndef _ELF_H
#define _ELF_H
#include <inttypes.h>
/* 32-bit ELF base types. */
typedef uint32_t Elf32_Addr;
typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Off;
typedef int32_t Elf32_Sword;
typedef uint32_t Elf32_Word;
/* 64-bit ELF base types. */
typedef uint64_t Elf64_Addr;
typedef uint16_t Elf64_Half;
typedef int16_t Elf64_SHalf;
typedef uint64_t Elf64_Off;
typedef int32_t Elf64_Sword;
typedef uint32_t Elf64_Word;
typedef uint64_t Elf64_Xword;
typedef int64_t Elf64_Sxword;
/* These constants are for the segment types stored in the image headers */
#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_LOPROC 0x70000000
#define PT_HIPROC 0x7fffffff
#define PT_MIPS_REGINFO 0x70000000
/* Flags in the e_flags field of the header */
#define EF_MIPS_NOREORDER 0x00000001
#define EF_MIPS_PIC 0x00000002
#define EF_MIPS_CPIC 0x00000004
#define EF_MIPS_ARCH 0xf0000000
/* These constants define the different elf file types */
#define ET_NONE 0
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff
/* These constants define the various ELF target machines */
#define EM_NONE 0
#define EM_M32 1
#define EM_SPARC 2
#define EM_386 3
#define EM_68K 4
#define EM_88K 5
#define EM_486 6 /* Perhaps disused */
#define EM_860 7
#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
#define EM_PARISC 15 /* HPPA */
#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
#define EM_PPC 20 /* PowerPC */
#define EM_S390 22 /* IBM S/390 */
#define EM_ARM 40 /* ARM */
#define EM_SH 42 /* SuperH */
#define EM_SPARCV9 43 /* SPARC v9 64-bit */
#define EM_IA_64 50 /* HP/Intel IA-64 */
#define EM_X86_64 62 /* AMD x86-64 */
#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
/*
* This is an interim value that we will use until the committee comes
* up with a final number.
*/
#define EM_ALPHA 0x9026
/*
* This is the old interim value for S/390 architecture
*/
#define EM_S390_OLD 0xA390
/* This is the info that is needed to parse the dynamic section of the file */
#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_NUM 24
#define DT_LOPROC 0x70000000
#define DT_HIPROC 0x7fffffff
#define DT_MIPS_RLD_VERSION 0x70000001
#define DT_MIPS_TIME_STAMP 0x70000002
#define DT_MIPS_ICHECKSUM 0x70000003
#define DT_MIPS_IVERSION 0x70000004
#define DT_MIPS_FLAGS 0x70000005
#define RHF_NONE 0
#define RHF_HARDWAY 1
#define RHF_NOTPOT 2
#define DT_MIPS_BASE_ADDRESS 0x70000006
#define DT_MIPS_CONFLICT 0x70000008
#define DT_MIPS_LIBLIST 0x70000009
#define DT_MIPS_LOCAL_GOTNO 0x7000000a
#define DT_MIPS_CONFLICTNO 0x7000000b
#define DT_MIPS_LIBLISTNO 0x70000010
#define DT_MIPS_SYMTABNO 0x70000011
#define DT_MIPS_UNREFEXTNO 0x70000012
#define DT_MIPS_GOTSYM 0x70000013
#define DT_MIPS_HIPAGENO 0x70000014
#define DT_MIPS_RLD_MAP 0x70000016
/* This info is needed when parsing the symbol table */
#define STB_LOCAL 0
#define STB_GLOBAL 1
#define STB_WEAK 2
#define STT_NOTYPE 0
#define STT_OBJECT 1
#define STT_FUNC 2
#define STT_SECTION 3
#define STT_FILE 4
#define ELF32_ST_BIND(x) ((x) >> 4)
#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
#define ELF64_ST_BIND(val) ELF32_ST_BIND (val)
#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val)
/* Symbolic values for the entries in the auxiliary table
put on the initial stack */
#define AT_NULL 0 /* end of vector */
#define AT_IGNORE 1 /* entry should be ignored */
#define AT_EXECFD 2 /* file descriptor of program */
#define AT_PHDR 3 /* program headers for program */
#define AT_PHENT 4 /* size of program header entry */
#define AT_PHNUM 5 /* number of program headers */
#define AT_PAGESZ 6 /* system page size */
#define AT_BASE 7 /* base address of interpreter */
#define AT_FLAGS 8 /* flags */
#define AT_ENTRY 9 /* entry point of program */
#define AT_NOTELF 10 /* program is not ELF */
#define AT_UID 11 /* real uid */
#define AT_EUID 12 /* effective uid */
#define AT_GID 13 /* real gid */
#define AT_EGID 14 /* effective gid */
#define AT_PLATFORM 15 /* string identifying CPU for optimizations */
#define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */
#define AT_CLKTCK 17 /* frequency at which times() increments */
typedef struct dynamic{
Elf32_Sword d_tag;
union{
Elf32_Sword d_val;
Elf32_Addr d_ptr;
} d_un;
} Elf32_Dyn;
typedef struct {
Elf64_Sxword d_tag; /* entry tag value */
union {
Elf64_Xword d_val;
Elf64_Addr d_ptr;
} d_un;
} Elf64_Dyn;
/* The following are used with relocations */
#define ELF32_R_SYM(x) ((x) >> 8)
#define ELF32_R_TYPE(x) ((x) & 0xff)
#define ELF64_R_SYM(x) ((x) >> 32)
#define ELF64_R_TYPE(x) ((x) & 0xffffffff)
#define R_386_NONE 0
#define R_386_32 1
#define R_386_PC32 2
#define R_386_GOT32 3
#define R_386_PLT32 4
#define R_386_COPY 5
#define R_386_GLOB_DAT 6
#define R_386_JMP_SLOT 7
#define R_386_RELATIVE 8
#define R_386_GOTOFF 9
#define R_386_GOTPC 10
#define R_386_NUM 11
#define R_MIPS_NONE 0
#define R_MIPS_16 1
#define R_MIPS_32 2
#define R_MIPS_REL32 3
#define R_MIPS_26 4
#define R_MIPS_HI16 5
#define R_MIPS_LO16 6
#define R_MIPS_GPREL16 7
#define R_MIPS_LITERAL 8
#define R_MIPS_GOT16 9
#define R_MIPS_PC16 10
#define R_MIPS_CALL16 11
#define R_MIPS_GPREL32 12
/* The remaining relocs are defined on Irix, although they are not
in the MIPS ELF ABI. */
#define R_MIPS_UNUSED1 13
#define R_MIPS_UNUSED2 14
#define R_MIPS_UNUSED3 15
#define R_MIPS_SHIFT5 16
#define R_MIPS_SHIFT6 17
#define R_MIPS_64 18
#define R_MIPS_GOT_DISP 19
#define R_MIPS_GOT_PAGE 20
#define R_MIPS_GOT_OFST 21
/*
* The following two relocation types are specified in the MIPS ABI
* conformance guide version 1.2 but not yet in the psABI.
*/
#define R_MIPS_GOTHI16 22
#define R_MIPS_GOTLO16 23
#define R_MIPS_SUB 24
#define R_MIPS_INSERT_A 25
#define R_MIPS_INSERT_B 26
#define R_MIPS_DELETE 27
#define R_MIPS_HIGHER 28
#define R_MIPS_HIGHEST 29
/*
* The following two relocation types are specified in the MIPS ABI
* conformance guide version 1.2 but not yet in the psABI.
*/
#define R_MIPS_CALLHI16 30
#define R_MIPS_CALLLO16 31
/*
* This range is reserved for vendor specific relocations.
*/
#define R_MIPS_LOVENDOR 100
#define R_MIPS_HIVENDOR 127
/*
* Sparc ELF relocation types
*/
#define R_SPARC_NONE 0
#define R_SPARC_8 1
#define R_SPARC_16 2
#define R_SPARC_32 3
#define R_SPARC_DISP8 4
#define R_SPARC_DISP16 5
#define R_SPARC_DISP32 6
#define R_SPARC_WDISP30 7
#define R_SPARC_WDISP22 8
#define R_SPARC_HI22 9
#define R_SPARC_22 10
#define R_SPARC_13 11
#define R_SPARC_LO10 12
#define R_SPARC_GOT10 13
#define R_SPARC_GOT13 14
#define R_SPARC_GOT22 15
#define R_SPARC_PC10 16
#define R_SPARC_PC22 17
#define R_SPARC_WPLT30 18
#define R_SPARC_COPY 19
#define R_SPARC_GLOB_DAT 20
#define R_SPARC_JMP_SLOT 21
#define R_SPARC_RELATIVE 22
#define R_SPARC_UA32 23
#define R_SPARC_PLT32 24
#define R_SPARC_HIPLT22 25
#define R_SPARC_LOPLT10 26
#define R_SPARC_PCPLT32 27
#define R_SPARC_PCPLT22 28
#define R_SPARC_PCPLT10 29
#define R_SPARC_10 30
#define R_SPARC_11 31
#define R_SPARC_WDISP16 40
#define R_SPARC_WDISP19 41
#define R_SPARC_7 43
#define R_SPARC_5 44
#define R_SPARC_6 45
/* Bits present in AT_HWCAP, primarily for Sparc32. */
#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
#define HWCAP_SPARC_STBAR 2
#define HWCAP_SPARC_SWAP 4
#define HWCAP_SPARC_MULDIV 8
#define HWCAP_SPARC_V9 16
#define HWCAP_SPARC_ULTRA3 32
/*
* 68k ELF relocation types
*/
#define R_68K_NONE 0
#define R_68K_32 1
#define R_68K_16 2
#define R_68K_8 3
#define R_68K_PC32 4
#define R_68K_PC16 5
#define R_68K_PC8 6
#define R_68K_GOT32 7
#define R_68K_GOT16 8
#define R_68K_GOT8 9
#define R_68K_GOT32O 10
#define R_68K_GOT16O 11
#define R_68K_GOT8O 12
#define R_68K_PLT32 13
#define R_68K_PLT16 14
#define R_68K_PLT8 15
#define R_68K_PLT32O 16
#define R_68K_PLT16O 17
#define R_68K_PLT8O 18
#define R_68K_COPY 19
#define R_68K_GLOB_DAT 20
#define R_68K_JMP_SLOT 21
#define R_68K_RELATIVE 22
/*
* Alpha ELF relocation types
*/
#define R_ALPHA_NONE 0 /* No reloc */
#define R_ALPHA_REFLONG 1 /* Direct 32 bit */
#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */
#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */
#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */
#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */
#define R_ALPHA_GPDISP 6 /* Add displacement to GP */
#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */
#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */
#define R_ALPHA_SREL16 9 /* PC relative 16 bit */
#define R_ALPHA_SREL32 10 /* PC relative 32 bit */
#define R_ALPHA_SREL64 11 /* PC relative 64 bit */
#define R_ALPHA_OP_PUSH 12 /* OP stack push */
#define R_ALPHA_OP_STORE 13 /* OP stack pop and store */
#define R_ALPHA_OP_PSUB 14 /* OP stack subtract */
#define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */
#define R_ALPHA_GPVALUE 16
#define R_ALPHA_GPRELHIGH 17
#define R_ALPHA_GPRELLOW 18
#define R_ALPHA_IMMED_GP_16 19
#define R_ALPHA_IMMED_GP_HI32 20
#define R_ALPHA_IMMED_SCN_HI32 21
#define R_ALPHA_IMMED_BR_HI32 22
#define R_ALPHA_IMMED_LO32 23
#define R_ALPHA_COPY 24 /* Copy symbol at runtime */
#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */
#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */
#define R_ALPHA_RELATIVE 27 /* Adjust by program base */
/* Legal values for e_flags field of Elf64_Ehdr. */
#define EF_ALPHA_32BIT 1 /* All addresses are below 2GB */
/*
* PowerPC
*/
/* Values for Elf32/64_Ehdr.e_flags. */
#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
/* Cygnus local bits below */
#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag */
/* PowerPC relocations defined by the ABIs */
#define R_PPC_NONE 0
#define R_PPC_ADDR32 1 /* 32bit absolute address */
#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
#define R_PPC_ADDR16 3 /* 16bit absolute address */
#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
#define R_PPC_ADDR14_BRTAKEN 8
#define R_PPC_ADDR14_BRNTAKEN 9
#define R_PPC_REL24 10 /* PC relative 26 bit */
#define R_PPC_REL14 11 /* PC relative 16 bit */
#define R_PPC_REL14_BRTAKEN 12
#define R_PPC_REL14_BRNTAKEN 13
#define R_PPC_GOT16 14
#define R_PPC_GOT16_LO 15
#define R_PPC_GOT16_HI 16
#define R_PPC_GOT16_HA 17
#define R_PPC_PLTREL24 18
#define R_PPC_COPY 19
#define R_PPC_GLOB_DAT 20
#define R_PPC_JMP_SLOT 21
#define R_PPC_RELATIVE 22
#define R_PPC_LOCAL24PC 23
#define R_PPC_UADDR32 24
#define R_PPC_UADDR16 25
#define R_PPC_REL32 26
#define R_PPC_PLT32 27
#define R_PPC_PLTREL32 28
#define R_PPC_PLT16_LO 29
#define R_PPC_PLT16_HI 30
#define R_PPC_PLT16_HA 31
#define R_PPC_SDAREL16 32
#define R_PPC_SECTOFF 33
#define R_PPC_SECTOFF_LO 34
#define R_PPC_SECTOFF_HI 35
#define R_PPC_SECTOFF_HA 36
/* Keep this the last entry. */
#define R_PPC_NUM 37
/* The remaining relocs are from the Embedded ELF ABI, and are not
in the SVR4 ELF ABI. */
#define R_PPC_EMB_NADDR32 101
#define R_PPC_EMB_NADDR16 102
#define R_PPC_EMB_NADDR16_LO 103
#define R_PPC_EMB_NADDR16_HI 104
#define R_PPC_EMB_NADDR16_HA 105
#define R_PPC_EMB_SDAI16 106
#define R_PPC_EMB_SDA2I16 107
#define R_PPC_EMB_SDA2REL 108
#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
#define R_PPC_EMB_MRKREF 110
#define R_PPC_EMB_RELSEC16 111
#define R_PPC_EMB_RELST_LO 112
#define R_PPC_EMB_RELST_HI 113
#define R_PPC_EMB_RELST_HA 114
#define R_PPC_EMB_BIT_FLD 115
#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
/* Diab tool relocations. */
#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
/* This is a phony reloc to handle any old fashioned TOC16 references
that may still be in object files. */
#define R_PPC_TOC16 255
/*
* ARM ELF relocation types
*/
#define R_ARM_NONE 0 /* No reloc */
#define R_ARM_PC24 1 /* PC relative 26 bit branch */
#define R_ARM_ABS32 2 /* Direct 32 bit */
#define R_ARM_REL32 3 /* PC relative 32 bit */
#define R_ARM_PC13 4
#define R_ARM_ABS16 5 /* Direct 16 bit */
#define R_ARM_ABS12 6 /* Direct 12 bit */
#define R_ARM_THM_ABS5 7
#define R_ARM_ABS8 8 /* Direct 8 bit */
#define R_ARM_SBREL32 9
#define R_ARM_THM_PC22 10
#define R_ARM_THM_PC8 11
#define R_ARM_AMP_VCALL9 12
#define R_ARM_SWI24 13
#define R_ARM_THM_SWI8 14
#define R_ARM_XPC25 15
#define R_ARM_THM_XPC22 16
#define R_ARM_COPY 20 /* Copy symbol at runtime */
#define R_ARM_GLOB_DAT 21 /* Create GOT entry */
#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */
#define R_ARM_RELATIVE 23 /* Adjust by program base */
#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */
#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
#define R_ARM_GOT32 26 /* 32 bit GOT entry */
#define R_ARM_PLT32 27 /* 32 bit PLT address */
#define R_ARM_GNU_VTENTRY 100
#define R_ARM_GNU_VTINHERIT 101
#define R_ARM_THM_PC11 102 /* thumb unconditional branch */
#define R_ARM_THM_PC9 103 /* thumb conditional branch */
#define R_ARM_RXPC25 249
#define R_ARM_RSBREL32 250
#define R_ARM_THM_RPC22 251
#define R_ARM_RREL32 252
#define R_ARM_RABS22 253
#define R_ARM_RPC24 254
#define R_ARM_RBASE 255
/* Keep this the last entry. */
#define R_ARM_NUM 256
/* Processor specific flags for the ELF header e_flags field. */
#define EF_ARM_RELEXEC 0x01
#define EF_ARM_HASENTRY 0x02
#define EF_ARM_INTERWORK 0x04
#define EF_ARM_APCS_26 0x08
#define EF_ARM_APCS_FLOAT 0x10
#define EF_ARM_PIC 0x20
#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
#define EF_NEW_ABI 0x80
#define EF_OLD_ABI 0x100
/* Additional symbol types for Thumb */
#define STT_ARM_TFUNC 0xd
/* AMD x86-64 relocations. */
#define R_X86_64_NONE 0 /* No reloc */
#define R_X86_64_64 1 /* Direct 64 bit */
#define R_X86_64_PC32 2 /* PC relative 32 bit signed */
#define R_X86_64_GOT32 3 /* 32 bit GOT entry */
#define R_X86_64_PLT32 4 /* 32 bit PLT address */
#define R_X86_64_COPY 5 /* Copy symbol at runtime */
#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
#define R_X86_64_RELATIVE 8 /* Adjust by program base */
#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative
offset to GOT */
#define R_X86_64_32 10 /* Direct 32 bit zero extended */
#define R_X86_64_32S 11 /* Direct 32 bit sign extended */
#define R_X86_64_16 12 /* Direct 16 bit zero extended */
#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
#define R_X86_64_8 14 /* Direct 8 bit sign extended */
#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */
#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */
#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */
#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */
#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset
to two GOT entries for GD symbol */
#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset
to two GOT entries for LD symbol */
#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */
#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset
to GOT entry for IE symbol */
#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */
#define R_X86_64_NUM 24
typedef struct elf32_rel {
Elf32_Addr r_offset;
Elf32_Word r_info;
} Elf32_Rel;
typedef struct elf64_rel {
Elf64_Addr r_offset; /* Location at which to apply the action */
Elf64_Xword r_info; /* index and type of relocation */
} Elf64_Rel;
typedef struct elf32_rela{
Elf32_Addr r_offset;
Elf32_Word r_info;
Elf32_Sword r_addend;
} Elf32_Rela;
typedef struct elf64_rela {
Elf64_Addr r_offset; /* Location at which to apply the action */
Elf64_Xword r_info; /* index and type of relocation */
Elf64_Sxword r_addend; /* Constant addend used to compute value */
} Elf64_Rela;
typedef struct elf32_sym{
Elf32_Word st_name;
Elf32_Addr st_value;
Elf32_Word st_size;
unsigned char st_info;
unsigned char st_other;
Elf32_Half st_shndx;
} Elf32_Sym;
typedef struct elf64_sym {
Elf64_Word st_name; /* Symbol name, index in string tbl */
unsigned char st_info; /* Type and binding attributes */
unsigned char st_other; /* No defined meaning, 0 */
Elf64_Half st_shndx; /* Associated section index */
Elf64_Addr st_value; /* Value of the symbol */
Elf64_Xword st_size; /* Associated symbol size */
} Elf64_Sym;
#define EI_NIDENT 16
typedef struct elf32_hdr{
unsigned char e_ident[EI_NIDENT];
Elf32_Half e_type;
Elf32_Half e_machine;
Elf32_Word e_version;
Elf32_Addr e_entry; /* Entry point */
Elf32_Off e_phoff;
Elf32_Off e_shoff;
Elf32_Word e_flags;
Elf32_Half e_ehsize;
Elf32_Half e_phentsize;
Elf32_Half e_phnum;
Elf32_Half e_shentsize;
Elf32_Half e_shnum;
Elf32_Half e_shstrndx;
} Elf32_Ehdr;
typedef struct elf64_hdr {
unsigned char e_ident[16]; /* ELF "magic number" */
Elf64_Half e_type;
Elf64_Half e_machine;
Elf64_Word e_version;
Elf64_Addr e_entry; /* Entry point virtual address */
Elf64_Off e_phoff; /* Program header table file offset */
Elf64_Off e_shoff; /* Section header table file offset */
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;
} Elf64_Ehdr;
/* These constants define the permissions on sections in the program
header, p_flags. */
#define PF_R 0x4
#define PF_W 0x2
#define PF_X 0x1
typedef struct elf32_phdr{
Elf32_Word p_type;
Elf32_Off p_offset;
Elf32_Addr p_vaddr;
Elf32_Addr p_paddr;
Elf32_Word p_filesz;
Elf32_Word p_memsz;
Elf32_Word p_flags;
Elf32_Word p_align;
} Elf32_Phdr;
typedef struct elf64_phdr {
Elf64_Word p_type;
Elf64_Word p_flags;
Elf64_Off p_offset; /* Segment file offset */
Elf64_Addr p_vaddr; /* Segment virtual address */
Elf64_Addr p_paddr; /* Segment physical address */
Elf64_Xword p_filesz; /* Segment size in file */
Elf64_Xword p_memsz; /* Segment size in memory */
Elf64_Xword p_align; /* Segment alignment, file & memory */
} Elf64_Phdr;
/* sh_type */
#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_NUM 12
#define SHT_LOPROC 0x70000000
#define SHT_HIPROC 0x7fffffff
#define SHT_LOUSER 0x80000000
#define SHT_HIUSER 0xffffffff
#define SHT_MIPS_LIST 0x70000000
#define SHT_MIPS_CONFLICT 0x70000002
#define SHT_MIPS_GPTAB 0x70000003
#define SHT_MIPS_UCODE 0x70000004
/* sh_flags */
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define SHF_EXECINSTR 0x4
#define SHF_MASKPROC 0xf0000000
#define SHF_MIPS_GPREL 0x10000000
#define SHF_ALPHA_GPREL 0x10000000
/* special section indexes */
#define SHN_UNDEF 0
#define SHN_LORESERVE 0xff00
#define SHN_LOPROC 0xff00
#define SHN_HIPROC 0xff1f
#define SHN_ABS 0xfff1
#define SHN_COMMON 0xfff2
#define SHN_HIRESERVE 0xffff
#define SHN_MIPS_ACCOMON 0xff00
typedef struct {
Elf32_Word sh_name;
Elf32_Word sh_type;
Elf32_Word sh_flags;
Elf32_Addr sh_addr;
Elf32_Off sh_offset;
Elf32_Word sh_size;
Elf32_Word sh_link;
Elf32_Word sh_info;
Elf32_Word sh_addralign;
Elf32_Word sh_entsize;
} Elf32_Shdr;
typedef struct elf64_shdr {
Elf64_Word sh_name; /* Section name, index in string tbl */
Elf64_Word sh_type; /* Type of section */
Elf64_Xword sh_flags; /* Miscellaneous section attributes */
Elf64_Addr sh_addr; /* Section virtual addr at execution */
Elf64_Off sh_offset; /* Section file offset */
Elf64_Xword sh_size; /* Size of section in bytes */
Elf64_Word sh_link; /* Index of another section */
Elf64_Word sh_info; /* Additional section information */
Elf64_Xword sh_addralign; /* Section alignment */
Elf64_Xword sh_entsize; /* Entry size if section holds table */
} Elf64_Shdr;
#define EI_MAG0 0 /* e_ident[] indexes */
#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_PAD 7
#define ELFMAG0 0x7f /* EI_MAG */
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
#define ELFMAG "\177ELF"
#define SELFMAG 4
#define ELFCLASSNONE 0 /* EI_CLASS */
#define ELFCLASS32 1
#define ELFCLASS64 2
#define ELFCLASSNUM 3
#define ELFDATANONE 0 /* e_ident[EI_DATA] */
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
#define EV_NONE 0 /* e_version, EI_VERSION */
#define EV_CURRENT 1
#define EV_NUM 2
/* Notes used in ET_CORE */
#define NT_PRSTATUS 1
#define NT_PRFPREG 2
#define NT_PRPSINFO 3
#define NT_TASKSTRUCT 4
#define NT_PRFPXREG 20
/* Note header in a PT_NOTE section */
typedef struct elf32_note {
Elf32_Word n_namesz; /* Name size */
Elf32_Word n_descsz; /* Content size */
Elf32_Word n_type; /* Content type */
} Elf32_Nhdr;
/* Note header in a PT_NOTE section */
typedef struct elf64_note {
Elf64_Word n_namesz; /* Name size */
Elf64_Word n_descsz; /* Content size */
Elf64_Word n_type; /* Content type */
} Elf64_Nhdr;
#if ELF_CLASS == ELFCLASS32
extern Elf32_Dyn _DYNAMIC [];
#define elfhdr elf32_hdr
#define elf_phdr elf32_phdr
#define elf_note elf32_note
#else
extern Elf64_Dyn _DYNAMIC [];
#define elfhdr elf64_hdr
#define elf_phdr elf64_phdr
#define elf_note elf64_note
#endif
#endif
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