From 56c4200b350e60455865ade0d392cd56eb38e901 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Wed, 19 Feb 1997 20:36:23 +0000 Subject: [PATCH] From Eric Youngdale : * external.h, internal.h, common.h: Added new structures and definitions for ELF versions. --- include/elf/ChangeLog | 6 ++ include/elf/common.h | 56 ++++++++++- include/elf/external.h | 251 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 312 insertions(+), 1 deletion(-) create mode 100644 include/elf/external.h diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog index dff383e..4b9d54e 100644 --- a/include/elf/ChangeLog +++ b/include/elf/ChangeLog @@ -1,3 +1,9 @@ +Wed Feb 19 15:35:31 1997 Ian Lance Taylor + + From Eric Youngdale : + * external.h, internal.h, common.h: Added new structures and + definitions for ELF versions. + start-sanitize-d30v Tue Feb 18 17:40:36 1997 Martin M. Hunt diff --git a/include/elf/common.h b/include/elf/common.h index 131ec29..d659f91 100644 --- a/include/elf/common.h +++ b/include/elf/common.h @@ -1,5 +1,5 @@ /* ELF support for BFD. - Copyright (C) 1991, 1992, 1993, 1994, 1996 Free Software Foundation, Inc. + Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. Written by Fred Fish @ Cygnus Support, from information published in "UNIX System V Release 4, Programmers Guide: ANSI C and @@ -179,6 +179,18 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define SHT_REL 9 /* Relocation entries, no addends */ #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ #define SHT_DYNSYM 11 /* Dynamic linking symbol table */ + +/* The next three section types are defined by Solaris, and are named + SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU* + versions. */ +#define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ +#define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ +#define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ + +#define SHT_GNU_verdef SHT_SUNW_verdef +#define SHT_GNU_verneed SHT_SUNW_verneed +#define SHT_GNU_versym SHT_SUNW_versym + #define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */ #define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */ #define SHT_LOUSER 0x80000000 /* Application-specific semantics */ @@ -273,6 +285,17 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define DT_DEBUG 21 #define DT_TEXTREL 22 #define DT_JMPREL 23 + +/* The next four dynamic tags are used on Solaris. We support them + everywhere. */ +#define DT_VERDEF 0x6ffffffc +#define DT_VERDEFNUM 0x6ffffffd +#define DT_VERNEED 0x6ffffffe +#define DT_VERNEEDNUM 0x6fffffff + +/* This tag is a GNU extension to the Solaris version scheme. */ +#define DT_VERSYM 0x6ffffff0 + #define DT_LOPROC 0x70000000 #define DT_HIPROC 0x7fffffff @@ -282,4 +305,35 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define DT_AUXILIARY 0x7ffffffd #define DT_FILTER 0x7fffffff +/* These constants are used for the version number of a Elf32_Verdef + structure. */ + +#define VER_DEF_NONE 0 +#define VER_DEF_CURRENT 1 + +/* These constants appear in the vd_flags field of a Elf32_Verdef + structure. */ + +#define VER_FLG_BASE 0x1 +#define VER_FLG_WEAK 0x2 + +/* These special constants can be found in an Elf32_Versym field. */ + +#define VER_NDX_LOCAL 0 +#define VER_NDX_GLOBAL 1 + +/* These constants are used for the version number of a Elf32_Verneed + structure. */ + +#define VER_NEED_NONE 0 +#define VER_NEED_CURRENT 1 + +/* This is a special token which appears as part of a symbol name. It + indictes that the rest of the name is actually the name of a + version node, and is not part of the actual name. This is a GNU + extension. For example, the symbol name `stat@ver2' is taken to + mean the symbol `stat' in version `ver2'. */ + +#define ELF_VER_CHR '@' + #endif /* _ELF_COMMON_H */ diff --git a/include/elf/external.h b/include/elf/external.h new file mode 100644 index 0000000..0a5d176 --- /dev/null +++ b/include/elf/external.h @@ -0,0 +1,251 @@ +/* ELF support for BFD. + Copyright (C) 1991, 92, 93, 95, 1997 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; + +/* 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]; +} Elf32_External_Verdef; + +typedef Elf32_External_Verdef Elf64_External_Verdef; + +/* This structure appears in a SHT_GNU_verdef section. */ + +typedef struct { + unsigned char vda_name[4]; + unsigned char vda_next[4]; +} Elf32_External_Verdaux; + +typedef Elf32_External_Verdaux Elf64_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]; +} Elf32_External_Verneed; + +typedef Elf32_External_Verneed Elf64_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]; +} Elf32_External_Vernaux; + +typedef Elf32_External_Vernaux Elf64_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]; +} Elf32_External_Versym; + +typedef Elf32_External_Versym Elf64_External_Versym; + +#endif /* _ELF_EXTERNAL_H */ -- 2.7.4