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Diffstat (limited to 'include/elf/external.h')
| -rw-r--r-- | include/elf/external.h | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/include/elf/external.h b/include/elf/external.h new file mode 100644 index 0000000..5cab77e --- /dev/null +++ b/include/elf/external.h @@ -0,0 +1,256 @@ +/* ELF support for BFD. + Copyright (C) 1991, 92, 93, 95, 97, 98, 1999 Free Software Foundation, Inc. + + Written by Fred Fish @ Cygnus Support, from information published + in "UNIX System V Release 4, Programmers Guide: ANSI C and + Programming Support Tools". + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program 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 General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + + +/* This file is part of ELF support for BFD, and contains the portions + that describe how ELF is represented externally by the BFD library. + I.E. it describes the in-file representation of ELF. It requires + the elf-common.h file which contains the portions that are common to + both the internal and external representations. */ + +/* The 64-bit stuff is kind of random. Perhaps someone will publish a + spec someday. */ + +#ifndef _ELF_EXTERNAL_H +#define _ELF_EXTERNAL_H + +/* ELF Header (32-bit implementations) */ + +typedef struct { + unsigned char e_ident[16]; /* ELF "magic number" */ + unsigned char e_type[2]; /* Identifies object file type */ + unsigned char e_machine[2]; /* Specifies required architecture */ + unsigned char e_version[4]; /* Identifies object file version */ + unsigned char e_entry[4]; /* Entry point virtual address */ + unsigned char e_phoff[4]; /* Program header table file offset */ + unsigned char e_shoff[4]; /* Section header table file offset */ + unsigned char e_flags[4]; /* Processor-specific flags */ + unsigned char e_ehsize[2]; /* ELF header size in bytes */ + unsigned char e_phentsize[2]; /* Program header table entry size */ + unsigned char e_phnum[2]; /* Program header table entry count */ + unsigned char e_shentsize[2]; /* Section header table entry size */ + unsigned char e_shnum[2]; /* Section header table entry count */ + unsigned char e_shstrndx[2]; /* Section header string table index */ +} Elf32_External_Ehdr; + +typedef struct { + unsigned char e_ident[16]; /* ELF "magic number" */ + unsigned char e_type[2]; /* Identifies object file type */ + unsigned char e_machine[2]; /* Specifies required architecture */ + unsigned char e_version[4]; /* Identifies object file version */ + unsigned char e_entry[8]; /* Entry point virtual address */ + unsigned char e_phoff[8]; /* Program header table file offset */ + unsigned char e_shoff[8]; /* Section header table file offset */ + unsigned char e_flags[4]; /* Processor-specific flags */ + unsigned char e_ehsize[2]; /* ELF header size in bytes */ + unsigned char e_phentsize[2]; /* Program header table entry size */ + unsigned char e_phnum[2]; /* Program header table entry count */ + unsigned char e_shentsize[2]; /* Section header table entry size */ + unsigned char e_shnum[2]; /* Section header table entry count */ + unsigned char e_shstrndx[2]; /* Section header string table index */ +} Elf64_External_Ehdr; + +/* Program header */ + +typedef struct { + unsigned char p_type[4]; /* Identifies program segment type */ + unsigned char p_offset[4]; /* Segment file offset */ + unsigned char p_vaddr[4]; /* Segment virtual address */ + unsigned char p_paddr[4]; /* Segment physical address */ + unsigned char p_filesz[4]; /* Segment size in file */ + unsigned char p_memsz[4]; /* Segment size in memory */ + unsigned char p_flags[4]; /* Segment flags */ + unsigned char p_align[4]; /* Segment alignment, file & memory */ +} Elf32_External_Phdr; + +typedef struct { + unsigned char p_type[4]; /* Identifies program segment type */ + unsigned char p_flags[4]; /* Segment flags */ + unsigned char p_offset[8]; /* Segment file offset */ + unsigned char p_vaddr[8]; /* Segment virtual address */ + unsigned char p_paddr[8]; /* Segment physical address */ + unsigned char p_filesz[8]; /* Segment size in file */ + unsigned char p_memsz[8]; /* Segment size in memory */ + unsigned char p_align[8]; /* Segment alignment, file & memory */ +} Elf64_External_Phdr; + +/* Section header */ + +typedef struct { + unsigned char sh_name[4]; /* Section name, index in string tbl */ + unsigned char sh_type[4]; /* Type of section */ + unsigned char sh_flags[4]; /* Miscellaneous section attributes */ + unsigned char sh_addr[4]; /* Section virtual addr at execution */ + unsigned char sh_offset[4]; /* Section file offset */ + unsigned char sh_size[4]; /* Size of section in bytes */ + unsigned char sh_link[4]; /* Index of another section */ + unsigned char sh_info[4]; /* Additional section information */ + unsigned char sh_addralign[4]; /* Section alignment */ + unsigned char sh_entsize[4]; /* Entry size if section holds table */ +} Elf32_External_Shdr; + +typedef struct { + unsigned char sh_name[4]; /* Section name, index in string tbl */ + unsigned char sh_type[4]; /* Type of section */ + unsigned char sh_flags[8]; /* Miscellaneous section attributes */ + unsigned char sh_addr[8]; /* Section virtual addr at execution */ + unsigned char sh_offset[8]; /* Section file offset */ + unsigned char sh_size[8]; /* Size of section in bytes */ + unsigned char sh_link[4]; /* Index of another section */ + unsigned char sh_info[4]; /* Additional section information */ + unsigned char sh_addralign[8]; /* Section alignment */ + unsigned char sh_entsize[8]; /* Entry size if section holds table */ +} Elf64_External_Shdr; + +/* Symbol table entry */ + +typedef struct { + unsigned char st_name[4]; /* Symbol name, index in string tbl */ + unsigned char st_value[4]; /* Value of the symbol */ + unsigned char st_size[4]; /* Associated symbol size */ + unsigned char st_info[1]; /* Type and binding attributes */ + unsigned char st_other[1]; /* No defined meaning, 0 */ + unsigned char st_shndx[2]; /* Associated section index */ +} Elf32_External_Sym; + +typedef struct { + unsigned char st_name[4]; /* Symbol name, index in string tbl */ + unsigned char st_info[1]; /* Type and binding attributes */ + unsigned char st_other[1]; /* No defined meaning, 0 */ + unsigned char st_shndx[2]; /* Associated section index */ + unsigned char st_value[8]; /* Value of the symbol */ + unsigned char st_size[8]; /* Associated symbol size */ +} Elf64_External_Sym; + +/* Note segments */ + +typedef struct { + unsigned char namesz[4]; /* Size of entry's owner string */ + unsigned char descsz[4]; /* Size of the note descriptor */ + unsigned char type[4]; /* Interpretation of the descriptor */ + char name[1]; /* Start of the name+desc data */ +} Elf_External_Note; + +/* Relocation Entries */ +typedef struct { + unsigned char r_offset[4]; /* Location at which to apply the action */ + unsigned char r_info[4]; /* index and type of relocation */ +} Elf32_External_Rel; + +typedef struct { + unsigned char r_offset[4]; /* Location at which to apply the action */ + unsigned char r_info[4]; /* index and type of relocation */ + unsigned char r_addend[4]; /* Constant addend used to compute value */ +} Elf32_External_Rela; + +typedef struct { + unsigned char r_offset[8]; /* Location at which to apply the action */ + unsigned char r_info[8]; /* index and type of relocation */ +} Elf64_External_Rel; + +typedef struct { + unsigned char r_offset[8]; /* Location at which to apply the action */ + unsigned char r_info[8]; /* index and type of relocation */ + unsigned char r_addend[8]; /* Constant addend used to compute value */ +} Elf64_External_Rela; + +/* dynamic section structure */ + +typedef struct { + unsigned char d_tag[4]; /* entry tag value */ + union { + unsigned char d_val[4]; + unsigned char d_ptr[4]; + } d_un; +} Elf32_External_Dyn; + +typedef struct { + unsigned char d_tag[8]; /* entry tag value */ + union { + unsigned char d_val[8]; + unsigned char d_ptr[8]; + } d_un; +} Elf64_External_Dyn; + +/* The version structures are currently size independent. They are + named without a 32 or 64. If that ever changes, these structures + will need to be renamed. */ + +/* This structure appears in a SHT_GNU_verdef section. */ + +typedef struct { + unsigned char vd_version[2]; + unsigned char vd_flags[2]; + unsigned char vd_ndx[2]; + unsigned char vd_cnt[2]; + unsigned char vd_hash[4]; + unsigned char vd_aux[4]; + unsigned char vd_next[4]; +} Elf_External_Verdef; + +/* This structure appears in a SHT_GNU_verdef section. */ + +typedef struct { + unsigned char vda_name[4]; + unsigned char vda_next[4]; +} Elf_External_Verdaux; + +/* This structure appears in a SHT_GNU_verneed section. */ + +typedef struct { + unsigned char vn_version[2]; + unsigned char vn_cnt[2]; + unsigned char vn_file[4]; + unsigned char vn_aux[4]; + unsigned char vn_next[4]; +} Elf_External_Verneed; + +/* This structure appears in a SHT_GNU_verneed section. */ + +typedef struct { + unsigned char vna_hash[4]; + unsigned char vna_flags[2]; + unsigned char vna_other[2]; + unsigned char vna_name[4]; + unsigned char vna_next[4]; +} Elf_External_Vernaux; + +/* This structure appears in a SHT_GNU_versym section. This is not a + standard ELF structure; ELF just uses Elf32_Half. */ + +typedef struct { + unsigned char vs_vers[2]; +} +#ifdef __GNUC__ + __attribute__ ((packed)) +#endif + Elf_External_Versym; + +/* Structure for syminfo section. */ +typedef struct +{ + unsigned char si_boundto[2]; + unsigned char si_flags[2]; +} Elf_External_Syminfo; + +#endif /* _ELF_EXTERNAL_H */ |