461 lines
9.1 KiB
C
Executable File
461 lines
9.1 KiB
C
Executable File
/*
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elf_repl.h - public header file for systems that lack it.
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Copyright (C) 1995 - 1998 Michael Riepe <michael@stud.uni-hannover.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* @(#) $Id: elf_repl.h,v 1.4 1998/06/04 17:14:01 michael Exp $ */
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/*
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* NEVER INCLUDE THIS FILE DIRECTLY - USE <libelf.h> INSTEAD!
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*/
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#ifndef _ELF_REPL_H
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#define _ELF_REPL_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/*
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* Scalar data types
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*/
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typedef __libelf_u32_t Elf32_Addr;
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typedef __libelf_u16_t Elf32_Half;
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typedef __libelf_u32_t Elf32_Off;
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typedef __libelf_i32_t Elf32_Sword;
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typedef __libelf_u32_t Elf32_Word;
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#define ELF32_FSZ_ADDR 4
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#define ELF32_FSZ_HALF 2
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#define ELF32_FSZ_OFF 4
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#define ELF32_FSZ_SWORD 4
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#define ELF32_FSZ_WORD 4
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#if __LIBELF64
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typedef __libelf_u64_t Elf64_Addr;
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typedef __libelf_u16_t Elf64_Half;
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typedef __libelf_u64_t Elf64_Off;
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typedef __libelf_i32_t Elf64_Sword;
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typedef __libelf_i64_t Elf64_Sxword;
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typedef __libelf_u32_t Elf64_Word;
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typedef __libelf_u64_t Elf64_Xword;
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#define ELF64_FSZ_ADDR 8
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#define ELF64_FSZ_HALF 2
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#define ELF64_FSZ_OFF 8
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#define ELF64_FSZ_SWORD 4
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#define ELF64_FSZ_SXWORD 8
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#define ELF64_FSZ_WORD 4
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#define ELF64_FSZ_XWORD 8
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#endif /* __LIBELF64 */
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/*
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* ELF header
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*/
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#define EI_NIDENT 16
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typedef struct {
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unsigned char e_ident[EI_NIDENT];
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Elf32_Half e_type;
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Elf32_Half e_machine;
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Elf32_Word e_version;
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Elf32_Addr e_entry;
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Elf32_Off e_phoff;
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Elf32_Off e_shoff;
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Elf32_Word e_flags;
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Elf32_Half e_ehsize;
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Elf32_Half e_phentsize;
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Elf32_Half e_phnum;
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Elf32_Half e_shentsize;
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Elf32_Half e_shnum;
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Elf32_Half e_shstrndx;
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} Elf32_Ehdr;
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#if __LIBELF64
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typedef struct {
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unsigned char e_ident[EI_NIDENT];
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Elf64_Half e_type;
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Elf64_Half e_machine;
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Elf64_Word e_version;
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Elf64_Addr e_entry;
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Elf64_Off e_phoff;
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Elf64_Off e_shoff;
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Elf64_Word e_flags;
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Elf64_Half e_ehsize;
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Elf64_Half e_phentsize;
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Elf64_Half e_phnum;
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Elf64_Half e_shentsize;
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Elf64_Half e_shnum;
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Elf64_Half e_shstrndx;
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} Elf64_Ehdr;
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#endif /* __LIBELF64 */
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/*
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* e-ident
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*/
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#define EI_MAG0 0
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#define EI_MAG1 1
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#define EI_MAG2 2
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#define EI_MAG3 3
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#define EI_CLASS 4
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#define EI_DATA 5
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#define EI_VERSION 6
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#define EI_PAD 7
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#define ELFMAG0 0x7f
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#define ELFMAG1 'E'
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#define ELFMAG2 'L'
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#define ELFMAG3 'F'
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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#define ELFCLASSNONE 0
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#define ELFCLASS32 1
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#define ELFCLASS64 2
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#define ELFCLASSNUM 3
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#define ELFDATANONE 0
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#define ELFDATA2LSB 1
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#define ELFDATA2MSB 2
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#define ELFDATANUM 3
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/*
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* e_type
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*/
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#define ET_NONE 0
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#define ET_REL 1
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#define ET_EXEC 2
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#define ET_DYN 3
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#define ET_CORE 4
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#define ET_NUM 5
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#define ET_LOPROC 0xff00
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#define ET_HIPROC 0xffff
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/*
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* e_machine
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*/
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#define EM_NONE 0
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#define EM_M32 1 /* AT&T WE 32100 */
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#define EM_SPARC 2 /* SPARC */
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#define EM_386 3 /* Intel i386 */
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#define EM_68K 4 /* Motorola 68000 */
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#define EM_88K 5 /* Motorola 88000 */
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#define EM_486 6 /* Intel i486 (do not use this one) */
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#define EM_860 7 /* Intel i860 */
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#define EM_MIPS 8 /* MIPS R3000 */
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#define EM_NUM 9
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/*
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* e_ident[EI_VERSION], e_version
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*/
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#define EV_NONE 0
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#define EV_CURRENT 1
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#define EV_NUM 2
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/*
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* Section header
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*/
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typedef struct {
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Elf32_Word sh_name;
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Elf32_Word sh_type;
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Elf32_Word sh_flags;
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Elf32_Addr sh_addr;
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Elf32_Off sh_offset;
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Elf32_Word sh_size;
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Elf32_Word sh_link;
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Elf32_Word sh_info;
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Elf32_Word sh_addralign;
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Elf32_Word sh_entsize;
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} Elf32_Shdr;
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#if __LIBELF64
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typedef struct {
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Elf64_Word sh_name;
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Elf64_Word sh_type;
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Elf64_Xword sh_flags;
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Elf64_Addr sh_addr;
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Elf64_Off sh_offset;
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Elf64_Xword sh_size;
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Elf64_Word sh_link;
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Elf64_Word sh_info;
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Elf64_Xword sh_addralign;
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Elf64_Xword sh_entsize;
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} Elf64_Shdr;
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#endif /* __LIBELF64 */
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/*
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* Special section indices
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*/
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#define SHN_UNDEF 0
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#define SHN_LORESERVE 0xff00
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#define SHN_LOPROC 0xff00
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#define SHN_HIPROC 0xff1f
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#define SHN_ABS 0xfff1
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#define SHN_COMMON 0xfff2
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#define SHN_HIRESERVE 0xffff
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/*
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* sh_type
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*/
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#define SHT_NULL 0
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#define SHT_PROGBITS 1
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#define SHT_SYMTAB 2
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#define SHT_STRTAB 3
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#define SHT_RELA 4
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#define SHT_HASH 5
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#define SHT_DYNAMIC 6
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#define SHT_NOTE 7
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#define SHT_NOBITS 8
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#define SHT_REL 9
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#define SHT_SHLIB 10
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#define SHT_DYNSYM 11
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#define SHT_NUM 12
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#define SHT_LOPROC 0x70000000
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#define SHT_HIPROC 0x7fffffff
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#define SHT_LOUSER 0x80000000
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#define SHT_HIUSER 0xffffffff
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/*
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* sh_flags
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*/
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#define SHF_WRITE 0x1
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#define SHF_ALLOC 0x2
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#define SHF_EXECINSTR 0x4
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#define SHF_MASKPROC 0xf0000000
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/*
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* Symbol table
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*/
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typedef struct {
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Elf32_Word st_name;
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Elf32_Addr st_value;
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Elf32_Word st_size;
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unsigned char st_info;
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unsigned char st_other;
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Elf32_Half st_shndx;
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} Elf32_Sym;
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#if __LIBELF64
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typedef struct {
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Elf64_Word st_name;
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unsigned char st_info;
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unsigned char st_other;
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Elf64_Half st_shndx;
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Elf64_Addr st_value;
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Elf64_Xword st_size;
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} Elf64_Sym;
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#endif /* __LIBELF64 */
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/*
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* Special symbol indices
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*/
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#define STN_UNDEF 0
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/*
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* Macros for manipulating st_info
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*/
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#define ELF32_ST_BIND(i) ((i)>>4)
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#define ELF32_ST_TYPE(i) ((i)&0xf)
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#define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf))
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/*
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* Symbol binding
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*/
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#define STB_LOCAL 0
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#define STB_GLOBAL 1
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#define STB_WEAK 2
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#define STB_NUM 3
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#define STB_LOPROC 13
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#define STB_HIPROC 15
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/*
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* Symbol types
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*/
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#define STT_NOTYPE 0
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#define STT_OBJECT 1
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#define STT_FUNC 2
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#define STT_SECTION 3
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#define STT_FILE 4
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#define STT_NUM 5
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#define STT_LOPROC 13
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#define STT_HIPROC 15
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/*
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* Relocation
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*/
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typedef struct {
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Elf32_Addr r_offset;
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Elf32_Word r_info;
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} Elf32_Rel;
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typedef struct {
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Elf32_Addr r_offset;
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Elf32_Word r_info;
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Elf32_Sword r_addend;
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} Elf32_Rela;
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#if __LIBELF64
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typedef struct {
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Elf64_Addr r_offset;
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Elf64_Xword r_info;
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} Elf64_Rel;
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typedef struct {
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Elf64_Addr r_offset;
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Elf64_Xword r_info;
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Elf64_Sxword r_addend;
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} Elf64_Rela;
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#endif /* __LIBELF64 */
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/*
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* Macros for manipulating r_info
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*/
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#define ELF32_R_SYM(i) ((i)>>8)
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#define ELF32_R_TYPE(i) ((unsigned char)(i))
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#define ELF32_R_INFO(s,t) (((s)<<8)+(unsigned char)(t))
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/*
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* Note entry header
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*/
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typedef struct {
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Elf32_Word n_namesz; /* name size */
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Elf32_Word n_descsz; /* descriptor size */
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Elf32_Word n_type; /* descriptor type */
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} Elf32_Nhdr;
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#if __LIBELF64 && 0 /* I don't know if this is correct */
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typedef struct {
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Elf64_Word n_namesz; /* name size */
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Elf64_Word n_descsz; /* descriptor size */
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Elf64_Word n_type; /* descriptor type */
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} Elf64_Nhdr;
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#endif /* __LIBELF64 */
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/*
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* Well-known descriptor types for ET_CORE files
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*/
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#define NT_PRSTATUS 1
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#define NT_PRFPREG 2
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#define NT_PRPSINFO 3
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/*
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* Program header
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*/
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typedef struct {
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Elf32_Word p_type;
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Elf32_Off p_offset;
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Elf32_Addr p_vaddr;
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Elf32_Addr p_paddr;
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Elf32_Word p_filesz;
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Elf32_Word p_memsz;
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Elf32_Word p_flags;
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Elf32_Word p_align;
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} Elf32_Phdr;
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#if __LIBELF64
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typedef struct {
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Elf64_Word p_type;
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Elf64_Word p_flags;
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Elf64_Off p_offset;
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Elf64_Addr p_vaddr;
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Elf64_Addr p_paddr;
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Elf64_Xword p_filesz;
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Elf64_Xword p_memsz;
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Elf64_Xword p_align;
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} Elf64_Phdr;
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#endif /* __LIBELF64 */
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/*
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* p_type
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*/
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#define PT_NULL 0
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#define PT_LOAD 1
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#define PT_DYNAMIC 2
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#define PT_INTERP 3
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#define PT_NOTE 4
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#define PT_SHLIB 5
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#define PT_PHDR 6
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#define PT_NUM 7
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#define PT_LOPROC 0x70000000
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#define PT_HIPROC 0x7fffffff
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/*
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* p_flags
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*/
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#define PF_R 0x4
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#define PF_W 0x2
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#define PF_X 0x1
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#define PF_MASKPROC 0xf0000000
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/*
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* Dynamic structure
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*/
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typedef struct {
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Elf32_Sword d_tag;
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union {
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Elf32_Word d_val;
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Elf32_Addr d_ptr;
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} d_un;
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} Elf32_Dyn;
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#if __LIBELF64
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typedef struct {
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Elf64_Sxword d_tag;
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union {
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Elf64_Xword d_val;
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Elf64_Addr d_ptr;
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} d_un;
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} Elf64_Dyn;
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#endif /* __LIBELF64 */
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/*
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* Dynamic array tags
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*/
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#define DT_NULL 0
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#define DT_NEEDED 1
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#define DT_PLTRELSZ 2
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#define DT_PLTGOT 3
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#define DT_HASH 4
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#define DT_STRTAB 5
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#define DT_SYMTAB 6
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#define DT_RELA 7
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#define DT_RELASZ 8
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#define DT_RELAENT 9
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#define DT_STRSZ 10
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#define DT_SYMENT 11
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#define DT_INIT 12
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#define DT_FINI 13
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#define DT_SONAME 14
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#define DT_RPATH 15
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#define DT_SYMBOLIC 16
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#define DT_REL 17
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#define DT_RELSZ 18
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#define DT_RELENT 19
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#define DT_PLTREL 20
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#define DT_DEBUG 21
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#define DT_TEXTREL 22
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#define DT_JMPREL 23
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#define DT_NUM 24
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#define DT_LOPROC 0x70000000
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#define DT_HIPROC 0x7fffffff
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* _ELF_REPL_H */
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