/*
elf_repl.h - public header file for systems that lack it.
Copyright (C) 1995 - 1998 Michael Riepe <michael@stud.uni-hannover.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* @(#) $Id: elf_repl.h,v 1.4 1998/06/04 17:14:01 michael Exp $ */
/*
* NEVER INCLUDE THIS FILE DIRECTLY - USE <libelf.h> INSTEAD!
*/
#ifndef _ELF_REPL_H
#define _ELF_REPL_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* Scalar data types
*/
typedef __libelf_u32_t Elf32_Addr;
typedef __libelf_u16_t Elf32_Half;
typedef __libelf_u32_t Elf32_Off;
typedef __libelf_i32_t Elf32_Sword;
typedef __libelf_u32_t Elf32_Word;
#define ELF32_FSZ_ADDR 4
#define ELF32_FSZ_HALF 2
#define ELF32_FSZ_OFF 4
#define ELF32_FSZ_SWORD 4
#define ELF32_FSZ_WORD 4
#if __LIBELF64
typedef __libelf_u64_t Elf64_Addr;
typedef __libelf_u16_t Elf64_Half;
typedef __libelf_u64_t Elf64_Off;
typedef __libelf_i32_t Elf64_Sword;
typedef __libelf_i64_t Elf64_Sxword;
typedef __libelf_u32_t Elf64_Word;
typedef __libelf_u64_t Elf64_Xword;
#define ELF64_FSZ_ADDR 8
#define ELF64_FSZ_HALF 2
#define ELF64_FSZ_OFF 8
#define ELF64_FSZ_SWORD 4
#define ELF64_FSZ_SXWORD 8
#define ELF64_FSZ_WORD 4
#define ELF64_FSZ_XWORD 8
#endif /* __LIBELF64 */
/*
* ELF header
*/
#define EI_NIDENT 16
typedef struct {
unsigned char e_ident[EI_NIDENT];
Elf32_Half e_type;
Elf32_Half e_machine;
Elf32_Word e_version;
Elf32_Addr e_entry;
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;
#if __LIBELF64
typedef struct {
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;
} Elf64_Ehdr;
#endif /* __LIBELF64 */
/*
* e-ident
*/
#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_PAD 7
#define ELFMAG0 0x7f
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
#define ELFMAG "\177ELF"
#define SELFMAG 4
#define ELFCLASSNONE 0
#define ELFCLASS32 1
#define ELFCLASS64 2
#define ELFCLASSNUM 3
#define ELFDATANONE 0
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
#define ELFDATANUM 3
/*
* e_type
*/
#define ET_NONE 0
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
#define ET_NUM 5
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff
/*
* e_machine
*/
#define EM_NONE 0
#define EM_M32 1 /* AT&T WE 32100 */
#define EM_SPARC 2 /* SPARC */
#define EM_386 3 /* Intel i386 */
#define EM_68K 4 /* Motorola 68000 */
#define EM_88K 5 /* Motorola 88000 */
#define EM_486 6 /* Intel i486 (do not use this one) */
#define EM_860 7 /* Intel i860 */
#define EM_MIPS 8 /* MIPS R3000 */
#define EM_NUM 9
/*
* e_ident[EI_VERSION], e_version
*/
#define EV_NONE 0
#define EV_CURRENT 1
#define EV_NUM 2
/*
* Section header
*/
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;
#if __LIBELF64
typedef struct {
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;
} Elf64_Shdr;
#endif /* __LIBELF64 */
/*
* Special section indices
*/
#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
/*
* 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
/*
* sh_flags
*/
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define SHF_EXECINSTR 0x4
#define SHF_MASKPROC 0xf0000000
/*
* Symbol table
*/
typedef struct {
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;
#if __LIBELF64
typedef struct {
Elf64_Word st_name;
unsigned char st_info;
unsigned char st_other;
Elf64_Half st_shndx;
Elf64_Addr st_value;
Elf64_Xword st_size;
} Elf64_Sym;
#endif /* __LIBELF64 */
/*
* Special symbol indices
*/
#define STN_UNDEF 0
/*
* Macros for manipulating st_info
*/
#define ELF32_ST_BIND(i) ((i)>>4)
#define ELF32_ST_TYPE(i) ((i)&0xf)
#define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf))
/*
* Symbol binding
*/
#define STB_LOCAL 0
#define STB_GLOBAL 1
#define STB_WEAK 2
#define STB_NUM 3
#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_NUM 5
#define STT_LOPROC 13
#define STT_HIPROC 15
/*
* Relocation
*/
typedef struct {
Elf32_Addr r_offset;
Elf32_Word r_info;
} Elf32_Rel;
typedef struct {
Elf32_Addr r_offset;
Elf32_Word r_info;
Elf32_Sword r_addend;
} Elf32_Rela;
#if __LIBELF64
typedef struct {
Elf64_Addr r_offset;
Elf64_Xword r_info;
} Elf64_Rel;
typedef struct {
Elf64_Addr r_offset;
Elf64_Xword r_info;
Elf64_Sxword r_addend;
} Elf64_Rela;
#endif /* __LIBELF64 */
/*
* Macros for manipulating r_info
*/
#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))
/*
* Note entry header
*/
typedef struct {
Elf32_Word n_namesz; /* name size */
Elf32_Word n_descsz; /* descriptor size */
Elf32_Word n_type; /* descriptor type */
} Elf32_Nhdr;
#if __LIBELF64 && 0 /* I don't know if this is correct */
typedef struct {
Elf64_Word n_namesz; /* name size */
Elf64_Word n_descsz; /* descriptor size */
Elf64_Word n_type; /* descriptor type */
} Elf64_Nhdr;
#endif /* __LIBELF64 */
/*
* Well-known descriptor types for ET_CORE files
*/
#define NT_PRSTATUS 1
#define NT_PRFPREG 2
#define NT_PRPSINFO 3
/*
* Program header
*/
typedef struct {
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;
#if __LIBELF64
typedef struct {
Elf64_Word p_type;
Elf64_Word p_flags;
Elf64_Off p_offset;
Elf64_Addr p_vaddr;
Elf64_Addr p_paddr;
Elf64_Xword p_filesz;
Elf64_Xword p_memsz;
Elf64_Xword p_align;
} Elf64_Phdr;
#endif /* __LIBELF64 */
/*
* p_type
*/
#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_NUM 7
#define PT_LOPROC 0x70000000
#define PT_HIPROC 0x7fffffff
/*
* p_flags
*/
#define PF_R 0x4
#define PF_W 0x2
#define PF_X 0x1
#define PF_MASKPROC 0xf0000000
/*
* Dynamic structure
*/
typedef struct {
Elf32_Sword d_tag;
union {
Elf32_Word d_val;
Elf32_Addr d_ptr;
} d_un;
} Elf32_Dyn;
#if __LIBELF64
typedef struct {
Elf64_Sxword d_tag;
union {
Elf64_Xword d_val;
Elf64_Addr d_ptr;
} d_un;
} Elf64_Dyn;
#endif /* __LIBELF64 */
/*
* 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_NUM 24
#define DT_LOPROC 0x70000000
#define DT_HIPROC 0x7fffffff
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _ELF_REPL_H */