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108 lines
4.3 KiB
C
Executable File
108 lines
4.3 KiB
C
Executable File
/* ELF support for BFD.
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Copyright (C) 1991 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., 675 Mass Ave, Cambridge, MA 02139, 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 internally in the BFD library.
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I.E. it describes the in-memory 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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/* Types used by various structures, functions, etc. */
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typedef unsigned long Elf_Addr; /* Unsigned program address */
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typedef unsigned long Elf_Off; /* Unsigned file offset */
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typedef long Elf_Sword; /* Signed large integer */
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typedef unsigned long Elf_Word; /* Unsigned large integer */
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typedef unsigned short Elf_Half; /* Unsigned medium integer */
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typedef unsigned char Elf_Char; /* Unsigned tiny integer */
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/* ELF Header */
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#define EI_NIDENT 16 /* Size of e_ident[] */
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typedef struct {
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unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
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Elf_Half e_type; /* Identifies object file type */
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Elf_Half e_machine; /* Specifies required architecture */
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Elf_Word e_version; /* Identifies object file version */
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Elf_Addr e_entry; /* Entry point virtual address */
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Elf_Off e_phoff; /* Program header table file offset */
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Elf_Off e_shoff; /* Section header table file offset */
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Elf_Word e_flags; /* Processor-specific flags */
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Elf_Half e_ehsize; /* ELF header size in bytes */
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Elf_Half e_phentsize; /* Program header table entry size */
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Elf_Half e_phnum; /* Program header table entry count */
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Elf_Half e_shentsize; /* Section header table entry size */
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Elf_Half e_shnum; /* Section header table entry count */
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Elf_Half e_shstrndx; /* Section header string table index */
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} Elf_Internal_Ehdr;
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/* Program header */
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typedef struct {
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Elf_Word p_type; /* Identifies program segment type */
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Elf_Off p_offset; /* Segment file offset */
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Elf_Addr p_vaddr; /* Segment virtual address */
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Elf_Addr p_paddr; /* Segment physical address */
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Elf_Word p_filesz; /* Segment size in file */
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Elf_Word p_memsz; /* Segment size in memory */
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Elf_Word p_flags; /* Segment flags */
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Elf_Word p_align; /* Segment alignment, file & memory */
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} Elf_Internal_Phdr;
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/* Section header */
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typedef struct {
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Elf_Word sh_name; /* Section name, index in string tbl */
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Elf_Word sh_type; /* Type of section */
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Elf_Word sh_flags; /* Miscellaneous section attributes */
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Elf_Addr sh_addr; /* Section virtual addr at execution */
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Elf_Off sh_offset; /* Section file offset */
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Elf_Word sh_size; /* Size of section in bytes */
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Elf_Word sh_link; /* Index of another section */
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Elf_Word sh_info; /* Additional section information */
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Elf_Word sh_addralign; /* Section alignment */
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Elf_Word sh_entsize; /* Entry size if section holds table */
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} Elf_Internal_Shdr;
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/* Symbol table entry */
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typedef struct {
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Elf_Word st_name; /* Symbol name, index in string tbl */
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Elf_Addr st_value; /* Value of the symbol */
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Elf_Word st_size; /* Associated symbol size */
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Elf_Char st_info; /* Type and binding attributes */
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Elf_Char st_other; /* No defined meaning, 0 */
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Elf_Half st_shndx; /* Associated section index */
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} Elf_Internal_Sym;
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/* Note segments */
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typedef struct {
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Elf_Word namesz; /* Size of entry's owner string */
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Elf_Word descsz; /* Size of the note descriptor */
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Elf_Word type; /* Interpretation of the descriptor */
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char name[1]; /* Start of the name+desc data */
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} Elf_Internal_Note;
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