include/asm-nios2nommu/a.out.h

   1 /* $Id: a.out.h,v 1.1 2006/07/05 06:20:25 gerg Exp $ */
   2 /*
   3  * Copyright (C) 2004 Microtronix Datacom Ltd.
   4  *
   5  * All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  15  * NON INFRINGEMENT.  See the GNU General Public License for more
  16  * details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23 #ifndef __NIOS2NOMMU_A_OUT_H__
  24 #define __NIOS2NOMMU_A_OUT_H__
  25
  26 #define SPARC_PGSIZE    0x1000        /* Thanks to the sun4 architecture... */
  27 #define SEGMENT_SIZE    SPARC_PGSIZE  /* whee... */
  28
  29 struct exec {
  30         unsigned char a_dynamic:1;      /* A __DYNAMIC is in this image */
  31         unsigned char a_toolversion:7;
  32         unsigned char a_machtype;
  33         unsigned short a_info;
  34         unsigned long a_text;           /* length of text, in bytes */
  35         unsigned long a_data;           /* length of data, in bytes */
  36         unsigned long a_bss;            /* length of bss, in bytes */
  37         unsigned long a_syms;           /* length of symbol table, in bytes */
  38         unsigned long a_entry;          /* where program begins */
  39         unsigned long a_trsize;
  40         unsigned long a_drsize;
  41 };
  42
  43 #define INIT_EXEC {                             \
  44         .a_dynamic      = 0,                    \
  45         .a_toolversion  = 0,                    \
  46         .a_machtype     = 0,                    \
  47         .a_info         = 0,                    \
  48         .a_text         = 0,                    \
  49         .a_data         = 0,                    \
  50         .a_bss          = 0,                    \
  51         .a_syms         = 0,                    \
  52         .a_entry        = 0,                    \
  53         .a_trsize       = 0,                    \
  54         .a_drsize       = 0,                    \
  55 }
  56
  57 /* Where in the file does the text information begin? */
  58 #define N_TXTOFF(x)     (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))
  59
  60 /* Where do the Symbols start? */
  61 #define N_SYMOFF(x)     (N_TXTOFF(x) + (x).a_text +   \
  62                          (x).a_data + (x).a_trsize +  \
  63                          (x).a_drsize)
  64
  65 /* Where does text segment go in memory after being loaded? */
  66 #define N_TXTADDR(x)    (((N_MAGIC(x) == ZMAGIC) &&        \
  67                          ((x).a_entry < SPARC_PGSIZE)) ?   \
  68                           0 : SPARC_PGSIZE)
  69
  70 /* And same for the data segment.. */
  71 #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ?         \
  72                       (N_TXTADDR(x) + (x).a_text)  \
  73                        : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
  74
  75 #define N_TRSIZE(a)     ((a).a_trsize)
  76 #define N_DRSIZE(a)     ((a).a_drsize)
  77 #define N_SYMSIZE(a)    ((a).a_syms)
  78
  79 #ifdef __KERNEL__
  80
  81 #define STACK_TOP       TASK_SIZE
  82
  83 #endif
  84
  85 #endif /* __NIOS2NOMMU_A_OUT_H__ */