tools/mac-elf.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Shamelessly taken from elf.h (copyright header below)
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22  /* This file defines standard ELF types, structures, and macros.
  23    Copyright (C) 1995-2003,2004,2005,2006,2007 Free Software Foundation, Inc.
  24    This file is part of the GNU C Library.
  25
  26    The GNU C Library is free software; you can redistribute it and/or
  27    modify it under the terms of the GNU Lesser General Public
  28    License as published by the Free Software Foundation; either
  29    version 2.1 of the License, or (at your option) any later version.
  30
  31    The GNU C Library is distributed in the hope that it will be useful,
  32    but WITHOUT ANY WARRANTY; without even the implied warranty of
  33    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  34    Lesser General Public License for more details.
  35
  36    You should have received a copy of the GNU Lesser General Public
  37    License along with the GNU C Library; if not, write to the Free
  38    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  39    02111-1307 USA.  */
  40
  41 #ifndef _MAC_ELF_H
  42 #define _MAC_ELF_H
  43
  44 #include <stdint.h>
  45
  46 /* Type for a 16-bit quantity.  */
  47 typedef uint16_t Elf32_Half;
  48
  49 /* Types for signed and unsigned 32-bit quantities.  */
  50 typedef uint32_t Elf32_Word;
  51 typedef    int32_t  Elf32_Sword;
  52
  53 /* Types for signed and unsigned 64-bit quantities.  */
  54 typedef uint64_t Elf32_Xword;
  55 typedef    int64_t  Elf32_Sxword;
  56
  57 /* Type of addresses.  */
  58 typedef uint32_t Elf32_Addr;
  59
  60 /* Type of file offsets.  */
  61 typedef uint32_t Elf32_Off;
  62
  63 /* Type for section indices, which are 16-bit quantities.  */
  64 typedef uint16_t Elf32_Section;
  65
  66 #define EI_NIDENT (16)
  67
  68 typedef struct
  69 {
  70   unsigned char e_ident[EI_NIDENT];    /* Magic number and other info */
  71   Elf32_Half    e_type;            /* Object file type */
  72   Elf32_Half    e_machine;        /* Architecture */
  73   Elf32_Word    e_version;        /* Object file version */
  74   Elf32_Addr    e_entry;        /* Entry point virtual address */
  75   Elf32_Off     e_phoff;        /* Program header table file offset */
  76   Elf32_Off     e_shoff;        /* Section header table file offset */
  77   Elf32_Word    e_flags;        /* Processor-specific flags */
  78   Elf32_Half    e_ehsize;        /* ELF header size in bytes */
  79   Elf32_Half    e_phentsize;        /* Program header table entry size */
  80   Elf32_Half    e_phnum;        /* Program header table entry count */
  81   Elf32_Half    e_shentsize;        /* Section header table entry size */
  82   Elf32_Half    e_shnum;        /* Section header table entry count */
  83   Elf32_Half    e_shstrndx;        /* Section header string table index */
  84 } Elf32_Ehdr;
  85
  86 typedef struct
  87 {
  88   Elf32_Word    sh_name;        /* Section name (string tbl index) */
  89   Elf32_Word    sh_type;        /* Section type */
  90   Elf32_Word    sh_flags;        /* Section flags */
  91   Elf32_Addr    sh_addr;        /* Section virtual addr at execution */
  92   Elf32_Off     sh_offset;        /* Section file offset */
  93   Elf32_Word    sh_size;        /* Section size in bytes */
  94   Elf32_Word    sh_link;        /* Link to another section */
  95   Elf32_Word    sh_info;        /* Additional section information */
  96   Elf32_Word    sh_addralign;        /* Section alignment */
  97   Elf32_Word    sh_entsize;        /* Entry size if section holds table */
  98 } Elf32_Shdr;
  99
 100 #define ELFMAG0        0x7f    /* Magic number byte 0 */
 101 #define ELFMAG1        'E'        /* Magic number byte 1 */
 102 #define ELFMAG2        'L'        /* Magic number byte 2 */
 103 #define ELFMAG3        'F'        /* Magic number byte 3 */
 104
 105 #define SHF_WRITE      (1 << 0)    /* Writable */
 106 #define SHF_ALLOC      (1 << 1)    /* Occupies memory during execution */
 107 #define SHF_EXECINSTR  (1 << 2)    /* Executable */
 108
 109 #define SHT_NOBITS     8        /* Program space with no data (bss) */
 110
 111 #endif /* _MAC_ELF_H */