From Eric Youngdale <eric@andante.jic.com>:
* external.h, internal.h, common.h: Added new structures and definitions for ELF versions.
This commit is contained in:
Ian Lance Taylor
parent
7adf26304e
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56c4200b35
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@ -1,3 +1,9 @@
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Wed Feb 19 15:35:31 1997 Ian Lance Taylor <ian@cygnus.com>
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From Eric Youngdale <eric@andante.jic.com>:
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* external.h, internal.h, common.h: Added new structures and
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definitions for ELF versions.
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start-sanitize-d30v
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Tue Feb 18 17:40:36 1997 Martin M. Hunt <hunt@pizza.cygnus.com>
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@ -1,5 +1,5 @@
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/* ELF support for BFD.
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Copyright (C) 1991, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
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Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
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Written by Fred Fish @ Cygnus Support, from information published
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in "UNIX System V Release 4, Programmers Guide: ANSI C and
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@ -179,6 +179,18 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define SHT_REL 9 /* Relocation entries, no addends */
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#define SHT_SHLIB 10 /* Reserved, unspecified semantics */
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#define SHT_DYNSYM 11 /* Dynamic linking symbol table */
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/* The next three section types are defined by Solaris, and are named
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SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU*
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versions. */
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#define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */
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#define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */
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#define SHT_SUNW_versym 0x6fffffff /* Symbol versions */
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#define SHT_GNU_verdef SHT_SUNW_verdef
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#define SHT_GNU_verneed SHT_SUNW_verneed
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#define SHT_GNU_versym SHT_SUNW_versym
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#define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */
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#define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */
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#define SHT_LOUSER 0x80000000 /* Application-specific semantics */
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@ -273,6 +285,17 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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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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/* The next four dynamic tags are used on Solaris. We support them
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everywhere. */
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#define DT_VERDEF 0x6ffffffc
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#define DT_VERDEFNUM 0x6ffffffd
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#define DT_VERNEED 0x6ffffffe
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#define DT_VERNEEDNUM 0x6fffffff
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/* This tag is a GNU extension to the Solaris version scheme. */
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#define DT_VERSYM 0x6ffffff0
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#define DT_LOPROC 0x70000000
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#define DT_HIPROC 0x7fffffff
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@ -282,4 +305,35 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define DT_AUXILIARY 0x7ffffffd
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#define DT_FILTER 0x7fffffff
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/* These constants are used for the version number of a Elf32_Verdef
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structure. */
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#define VER_DEF_NONE 0
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#define VER_DEF_CURRENT 1
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/* These constants appear in the vd_flags field of a Elf32_Verdef
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structure. */
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#define VER_FLG_BASE 0x1
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#define VER_FLG_WEAK 0x2
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/* These special constants can be found in an Elf32_Versym field. */
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#define VER_NDX_LOCAL 0
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#define VER_NDX_GLOBAL 1
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/* These constants are used for the version number of a Elf32_Verneed
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structure. */
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#define VER_NEED_NONE 0
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#define VER_NEED_CURRENT 1
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/* This is a special token which appears as part of a symbol name. It
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indictes that the rest of the name is actually the name of a
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version node, and is not part of the actual name. This is a GNU
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extension. For example, the symbol name `stat@ver2' is taken to
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mean the symbol `stat' in version `ver2'. */
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#define ELF_VER_CHR '@'
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#endif /* _ELF_COMMON_H */
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@ -0,0 +1,251 @@
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/* ELF support for BFD.
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Copyright (C) 1991, 92, 93, 95, 1997 Free Software Foundation, Inc.
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Written by Fred Fish @ Cygnus Support, from information published
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in "UNIX System V Release 4, Programmers Guide: ANSI C and
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Programming Support Tools".
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; 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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/* This file is part of ELF support for BFD, and contains the portions
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that describe how ELF is represented externally by the BFD library.
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I.E. it describes the in-file representation of ELF. It requires
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the elf-common.h file which contains the portions that are common to
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both the internal and external representations. */
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/* The 64-bit stuff is kind of random. Perhaps someone will publish a
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spec someday. */
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#ifndef _ELF_EXTERNAL_H
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#define _ELF_EXTERNAL_H
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/* ELF Header (32-bit implementations) */
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typedef struct {
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unsigned char e_ident[16]; /* ELF "magic number" */
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unsigned char e_type[2]; /* Identifies object file type */
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unsigned char e_machine[2]; /* Specifies required architecture */
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unsigned char e_version[4]; /* Identifies object file version */
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unsigned char e_entry[4]; /* Entry point virtual address */
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unsigned char e_phoff[4]; /* Program header table file offset */
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unsigned char e_shoff[4]; /* Section header table file offset */
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unsigned char e_flags[4]; /* Processor-specific flags */
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unsigned char e_ehsize[2]; /* ELF header size in bytes */
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unsigned char e_phentsize[2]; /* Program header table entry size */
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unsigned char e_phnum[2]; /* Program header table entry count */
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unsigned char e_shentsize[2]; /* Section header table entry size */
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unsigned char e_shnum[2]; /* Section header table entry count */
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unsigned char e_shstrndx[2]; /* Section header string table index */
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} Elf32_External_Ehdr;
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typedef struct {
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unsigned char e_ident[16]; /* ELF "magic number" */
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unsigned char e_type[2]; /* Identifies object file type */
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unsigned char e_machine[2]; /* Specifies required architecture */
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unsigned char e_version[4]; /* Identifies object file version */
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unsigned char e_entry[8]; /* Entry point virtual address */
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unsigned char e_phoff[8]; /* Program header table file offset */
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unsigned char e_shoff[8]; /* Section header table file offset */
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unsigned char e_flags[4]; /* Processor-specific flags */
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unsigned char e_ehsize[2]; /* ELF header size in bytes */
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unsigned char e_phentsize[2]; /* Program header table entry size */
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unsigned char e_phnum[2]; /* Program header table entry count */
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unsigned char e_shentsize[2]; /* Section header table entry size */
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unsigned char e_shnum[2]; /* Section header table entry count */
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unsigned char e_shstrndx[2]; /* Section header string table index */
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} Elf64_External_Ehdr;
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/* Program header */
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typedef struct {
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unsigned char p_type[4]; /* Identifies program segment type */
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unsigned char p_offset[4]; /* Segment file offset */
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unsigned char p_vaddr[4]; /* Segment virtual address */
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unsigned char p_paddr[4]; /* Segment physical address */
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unsigned char p_filesz[4]; /* Segment size in file */
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unsigned char p_memsz[4]; /* Segment size in memory */
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unsigned char p_flags[4]; /* Segment flags */
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unsigned char p_align[4]; /* Segment alignment, file & memory */
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} Elf32_External_Phdr;
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typedef struct {
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unsigned char p_type[4]; /* Identifies program segment type */
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unsigned char p_flags[4]; /* Segment flags */
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unsigned char p_offset[8]; /* Segment file offset */
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unsigned char p_vaddr[8]; /* Segment virtual address */
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unsigned char p_paddr[8]; /* Segment physical address */
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unsigned char p_filesz[8]; /* Segment size in file */
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unsigned char p_memsz[8]; /* Segment size in memory */
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unsigned char p_align[8]; /* Segment alignment, file & memory */
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} Elf64_External_Phdr;
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/* Section header */
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typedef struct {
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unsigned char sh_name[4]; /* Section name, index in string tbl */
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unsigned char sh_type[4]; /* Type of section */
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unsigned char sh_flags[4]; /* Miscellaneous section attributes */
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unsigned char sh_addr[4]; /* Section virtual addr at execution */
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unsigned char sh_offset[4]; /* Section file offset */
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unsigned char sh_size[4]; /* Size of section in bytes */
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unsigned char sh_link[4]; /* Index of another section */
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unsigned char sh_info[4]; /* Additional section information */
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unsigned char sh_addralign[4]; /* Section alignment */
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unsigned char sh_entsize[4]; /* Entry size if section holds table */
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} Elf32_External_Shdr;
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typedef struct {
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unsigned char sh_name[4]; /* Section name, index in string tbl */
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unsigned char sh_type[4]; /* Type of section */
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unsigned char sh_flags[8]; /* Miscellaneous section attributes */
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unsigned char sh_addr[8]; /* Section virtual addr at execution */
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unsigned char sh_offset[8]; /* Section file offset */
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unsigned char sh_size[8]; /* Size of section in bytes */
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unsigned char sh_link[4]; /* Index of another section */
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unsigned char sh_info[4]; /* Additional section information */
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unsigned char sh_addralign[8]; /* Section alignment */
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unsigned char sh_entsize[8]; /* Entry size if section holds table */
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} Elf64_External_Shdr;
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/* Symbol table entry */
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typedef struct {
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unsigned char st_name[4]; /* Symbol name, index in string tbl */
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unsigned char st_value[4]; /* Value of the symbol */
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unsigned char st_size[4]; /* Associated symbol size */
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unsigned char st_info[1]; /* Type and binding attributes */
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unsigned char st_other[1]; /* No defined meaning, 0 */
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unsigned char st_shndx[2]; /* Associated section index */
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} Elf32_External_Sym;
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typedef struct {
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unsigned char st_name[4]; /* Symbol name, index in string tbl */
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unsigned char st_info[1]; /* Type and binding attributes */
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unsigned char st_other[1]; /* No defined meaning, 0 */
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unsigned char st_shndx[2]; /* Associated section index */
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unsigned char st_value[8]; /* Value of the symbol */
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unsigned char st_size[8]; /* Associated symbol size */
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} Elf64_External_Sym;
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/* Note segments */
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typedef struct {
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unsigned char namesz[4]; /* Size of entry's owner string */
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unsigned char descsz[4]; /* Size of the note descriptor */
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unsigned char type[4]; /* Interpretation of the descriptor */
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char name[1]; /* Start of the name+desc data */
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} Elf_External_Note;
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/* Relocation Entries */
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typedef struct {
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unsigned char r_offset[4]; /* Location at which to apply the action */
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unsigned char r_info[4]; /* index and type of relocation */
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} Elf32_External_Rel;
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typedef struct {
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unsigned char r_offset[4]; /* Location at which to apply the action */
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unsigned char r_info[4]; /* index and type of relocation */
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unsigned char r_addend[4]; /* Constant addend used to compute value */
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} Elf32_External_Rela;
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typedef struct {
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unsigned char r_offset[8]; /* Location at which to apply the action */
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unsigned char r_info[8]; /* index and type of relocation */
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} Elf64_External_Rel;
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typedef struct {
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unsigned char r_offset[8]; /* Location at which to apply the action */
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unsigned char r_info[8]; /* index and type of relocation */
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unsigned char r_addend[8]; /* Constant addend used to compute value */
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} Elf64_External_Rela;
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/* dynamic section structure */
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typedef struct {
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unsigned char d_tag[4]; /* entry tag value */
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union {
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unsigned char d_val[4];
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unsigned char d_ptr[4];
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} d_un;
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} Elf32_External_Dyn;
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typedef struct {
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unsigned char d_tag[8]; /* entry tag value */
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union {
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unsigned char d_val[8];
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unsigned char d_ptr[8];
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} d_un;
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} Elf64_External_Dyn;
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/* This structure appears in a SHT_GNU_verdef section. */
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typedef struct {
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unsigned char vd_version[2];
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unsigned char vd_flags[2];
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unsigned char vd_ndx[2];
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unsigned char vd_cnt[2];
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unsigned char vd_hash[4];
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unsigned char vd_aux[4];
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unsigned char vd_next[4];
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} Elf32_External_Verdef;
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typedef Elf32_External_Verdef Elf64_External_Verdef;
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/* This structure appears in a SHT_GNU_verdef section. */
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typedef struct {
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unsigned char vda_name[4];
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unsigned char vda_next[4];
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} Elf32_External_Verdaux;
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typedef Elf32_External_Verdaux Elf64_External_Verdaux;
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/* This structure appears in a SHT_GNU_verneed section. */
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typedef struct {
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unsigned char vn_version[2];
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unsigned char vn_cnt[2];
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unsigned char vn_file[4];
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unsigned char vn_aux[4];
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unsigned char vn_next[4];
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} Elf32_External_Verneed;
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typedef Elf32_External_Verneed Elf64_External_Verneed;
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/* This structure appears in a SHT_GNU_verneed section. */
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typedef struct {
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unsigned char vna_hash[4];
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unsigned char vna_flags[2];
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unsigned char vna_other[2];
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unsigned char vna_name[4];
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unsigned char vna_next[4];
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} Elf32_External_Vernaux;
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typedef Elf32_External_Vernaux Elf64_External_Vernaux;
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/* This structure appears in a SHT_GNU_versym section. This is not a
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standard ELF structure; ELF just uses Elf32_Half. */
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typedef struct {
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unsigned char vs_vers[2];
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} Elf32_External_Versym;
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typedef Elf32_External_Versym Elf64_External_Versym;
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#endif /* _ELF_EXTERNAL_H */
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