projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| 2d996e5d JG |
1 | /* ELF support for BFD. |
| 2 | Copyright (C) 1991 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | Written by Fred Fish @ Cygnus Support, from information published | |
| 5 | in "UNIX System V Release 4, Programmers Guide: ANSI C and | |
| 6 | Programming Support Tools". | |
| 7 | ||
| 8 | This file is part of BFD, the Binary File Descriptor library. | |
| 9 | ||
| 10 | This program is free software; you can redistribute it and/or modify | |
| 11 | it under the terms of the GNU General Public License as published by | |
| 12 | the Free Software Foundation; either version 2 of the License, or | |
| 13 | (at your option) any later version. | |
| 14 | ||
| 15 | This program is distributed in the hope that it will be useful, | |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | GNU General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU General Public License | |
| 21 | along with this program; if not, write to the Free Software | |
| 22 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 23 | ||
| 24 | ||
| 25 | /* This file is part of ELF support for BFD, and contains the portions | |
| 26 | that describe how ELF is represented externally by the BFD library. | |
| 27 | I.E. it describes the in-file representation of ELF. It requires | |
| 28 | the elf-common.h file which contains the portions that are common to | |
| 29 | both the internal and external representations. */ | |
| 30 | ||
| 31 | /* ELF Header (32-bit implementations) */ | |
| 32 | ||
| 33 | typedef struct { | |
| 34 | unsigned char e_ident[16]; /* ELF "magic number" */ | |
| 35 | unsigned char e_type[2]; /* Identifies object file type */ | |
| 36 | unsigned char e_machine[2]; /* Specifies required architecture */ | |
| 37 | unsigned char e_version[4]; /* Identifies object file version */ | |
| 38 | unsigned char e_entry[4]; /* Entry point virtual address */ | |
| 39 | unsigned char e_phoff[4]; /* Program header table file offset */ | |
| 40 | unsigned char e_shoff[4]; /* Section header table file offset */ | |
| 41 | unsigned char e_flags[4]; /* Processor-specific flags */ | |
| 42 | unsigned char e_ehsize[2]; /* ELF header size in bytes */ | |
| 43 | unsigned char e_phentsize[2]; /* Program header table entry size */ | |
| 44 | unsigned char e_phnum[2]; /* Program header table entry count */ | |
| 45 | unsigned char e_shentsize[2]; /* Section header table entry size */ | |
| 46 | unsigned char e_shnum[2]; /* Section header table entry count */ | |
| 47 | unsigned char e_shstrndx[2]; /* Section header string table index */ | |
| 48 | } Elf_External_Ehdr; | |
| 49 | ||
| 50 | /* Program header */ | |
| 51 | ||
| 52 | typedef struct { | |
| 53 | unsigned char p_type[4]; /* Identifies program segment type */ | |
| 54 | unsigned char p_offset[4]; /* Segment file offset */ | |
| 55 | unsigned char p_vaddr[4]; /* Segment virtual address */ | |
| 56 | unsigned char p_paddr[4]; /* Segment physical address */ | |
| 57 | unsigned char p_filesz[4]; /* Segment size in file */ | |
| 58 | unsigned char p_memsz[4]; /* Segment size in memory */ | |
| 59 | unsigned char p_flags[4]; /* Segment flags */ | |
| 60 | unsigned char p_align[4]; /* Segment alignment, file & memory */ | |
| 61 | } Elf_External_Phdr; | |
| 62 | ||
| 63 | /* Section header */ | |
| 64 | ||
| 65 | typedef struct { | |
| 66 | unsigned char sh_name[4]; /* Section name, index in string tbl */ | |
| 67 | unsigned char sh_type[4]; /* Type of section */ | |
| 68 | unsigned char sh_flags[4]; /* Miscellaneous section attributes */ | |
| 69 | unsigned char sh_addr[4]; /* Section virtual addr at execution */ | |
| 70 | unsigned char sh_offset[4]; /* Section file offset */ | |
| 71 | unsigned char sh_size[4]; /* Size of section in bytes */ | |
| 72 | unsigned char sh_link[4]; /* Index of another section */ | |
| 73 | unsigned char sh_info[4]; /* Additional section information */ | |
| 74 | unsigned char sh_addralign[4]; /* Section alignment */ | |
| 75 | unsigned char sh_entsize[4]; /* Entry size if section holds table */ | |
| 76 | } Elf_External_Shdr; | |
| 77 | ||
| 78 | /* Symbol table entry */ | |
| 79 | ||
| 80 | typedef struct { | |
| 81 | unsigned char st_name[4]; /* Symbol name, index in string tbl */ | |
| 82 | unsigned char st_value[4]; /* Value of the symbol */ | |
| 83 | unsigned char st_size[4]; /* Associated symbol size */ | |
| 84 | unsigned char st_info[1]; /* Type and binding attributes */ | |
| 85 | unsigned char st_other[1]; /* No defined meaning, 0 */ | |
| 86 | unsigned char st_shndx[2]; /* Associated section index */ | |
| 87 | } Elf_External_Sym; | |
| d6fee238 FF |
88 | |
| 89 | /* Note segments */ | |
| 90 | ||
| 91 | typedef struct { | |
| 92 | unsigned char namesz[4]; /* Size of entry's owner string */ | |
| 93 | unsigned char descsz[4]; /* Size of the note descriptor */ | |
| 94 | unsigned char type[4]; /* Interpretation of the descriptor */ | |
| 95 | char name[1]; /* Start of the name+desc data */ | |
| 96 | } Elf_External_Note; |