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- /* ELF support for BFD.
- Copyright (C) 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- /* This file is part of ELF support for BFD, and contains the portions
- that describe how ELF is represented internally in the BFD library.
- I.E. it describes the in-memory representation of ELF. It requires
- the elf-common.h file which contains the portions that are common to
- both the internal and external representations. */
-
- /* Types used by various structures, functions, etc. */
-
- typedef unsigned long Elf_Addr; /* Unsigned program address */
- typedef unsigned long Elf_Off; /* Unsigned file offset */
- typedef long Elf_Sword; /* Signed large integer */
- typedef unsigned long Elf_Word; /* Unsigned large integer */
- typedef unsigned short Elf_Half; /* Unsigned medium integer */
- typedef unsigned char Elf_Char; /* Unsigned tiny integer */
-
- /* ELF Header */
-
- #define EI_NIDENT 16 /* Size of e_ident[] */
-
- typedef struct elf_internal_ehdr {
- unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
- Elf_Half e_type; /* Identifies object file type */
- Elf_Half e_machine; /* Specifies required architecture */
- Elf_Word e_version; /* Identifies object file version */
- Elf_Addr e_entry; /* Entry point virtual address */
- Elf_Off e_phoff; /* Program header table file offset */
- Elf_Off e_shoff; /* Section header table file offset */
- Elf_Word e_flags; /* Processor-specific flags */
- Elf_Half e_ehsize; /* ELF header size in bytes */
- Elf_Half e_phentsize; /* Program header table entry size */
- Elf_Half e_phnum; /* Program header table entry count */
- Elf_Half e_shentsize; /* Section header table entry size */
- Elf_Half e_shnum; /* Section header table entry count */
- Elf_Half e_shstrndx; /* Section header string table index */
- } Elf_Internal_Ehdr;
-
- /* Program header */
-
- typedef struct elf_internal_phdr {
- Elf_Word p_type; /* Identifies program segment type */
- Elf_Off p_offset; /* Segment file offset */
- Elf_Addr p_vaddr; /* Segment virtual address */
- Elf_Addr p_paddr; /* Segment physical address */
- Elf_Word p_filesz; /* Segment size in file */
- Elf_Word p_memsz; /* Segment size in memory */
- Elf_Word p_flags; /* Segment flags */
- Elf_Word p_align; /* Segment alignment, file & memory */
- } Elf_Internal_Phdr;
-
- /* Section header */
-
- typedef struct elf_internal_shdr {
- Elf_Word sh_name; /* Section name, index in string tbl */
- Elf_Word sh_type; /* Type of section */
- Elf_Word sh_flags; /* Miscellaneous section attributes */
- Elf_Addr sh_addr; /* Section virtual addr at execution */
- Elf_Off sh_offset; /* Section file offset */
- Elf_Word sh_size; /* Size of section in bytes */
- Elf_Word sh_link; /* Index of another section */
- Elf_Word sh_info; /* Additional section information */
- Elf_Word sh_addralign; /* Section alignment */
- Elf_Word sh_entsize; /* Entry size if section holds table */
-
- /* The internal rep also has some cached info associated with it. */
- void *rawdata; /* null if unused... */
- void *contents; /* null if unused... */
- unsigned size; /* size of contents (0 if unused) */
- } Elf_Internal_Shdr;
-
- /* Symbol table entry */
-
- typedef struct elf_internal_sym {
- Elf_Word st_name; /* Symbol name, index in string tbl */
- Elf_Addr st_value; /* Value of the symbol */
- Elf_Word st_size; /* Associated symbol size */
- Elf_Char st_info; /* Type and binding attributes */
- Elf_Char st_other; /* No defined meaning, 0 */
- Elf_Half st_shndx; /* Associated section index */
- } Elf_Internal_Sym;
-
- /* Note segments */
-
- typedef struct elf_internal_note {
- Elf_Word namesz; /* Size of entry's owner string */
- Elf_Word descsz; /* Size of the note descriptor */
- Elf_Word type; /* Interpretation of the descriptor */
- char name[1]; /* Start of the name+desc data */
- } Elf_Internal_Note;
-
- /* Relocation Entries */
-
- typedef struct elf_internal_rel {
- Elf_Addr r_offset; /* Location at which to apply the action */
- Elf_Word r_info; /* index and type of relocation */
- } Elf_Internal_Rel;
-
- typedef struct elf_internal_rela {
- Elf_Addr r_offset; /* Location at which to apply the action */
- Elf_Word r_info; /* Index and Type of relocation */
- Elf_Sword r_addend; /* Constant addend used to compute value */
- } Elf_Internal_Rela;
-
- /* dynamic section structure */
-
- typedef struct {
- Elf_Sword d_tag; /* entry tag value */
- union {
- Elf_Word d_val;
- Elf_Addr d_ptr;
- } d_un;
- } Elf_Internal_Dyn;
-