/* elf_repl.h - public header file for systems that lack it. Copyright (C) 1995 - 1998 Michael Riepe 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 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 */