aout.h revision b8e299dddd091ae24e0c08c45d91b8f937bd14d2
/*
* Borrowed from NetBSD's exec_aout.h
*
* Copyright (c) 1993, 1994 Christopher G. Demetriou
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#ifndef _AOUT_H
#define _AOUT_H
/* Get prototype for ntohl, per SuSv3. */
/* OS/2 EMX has ntohl in this file */
#ifdef __UNIXOS2__
#endif
#define __LDPGSZ 4096U
#ifndef AOUT_PAGSIZ
#endif
/*
* a.out header
*/
typedef struct AOUT_exec {
unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
unsigned long a_text; /* text segment size */
unsigned long a_data; /* initialized data size */
unsigned long a_bss; /* uninitialized data size */
unsigned long a_syms; /* symbol table size */
unsigned long a_entry; /* entry point */
unsigned long a_trsize; /* text relocation size */
unsigned long a_drsize; /* data relocation size */
} AOUTHDR;
/* a_magic */
/*
* a_mid - keep sorted in numerical order for sanity's sake
* ensure that: 0 < mid < 0x3ff
*/
#define MID_ZERO 0 /* unknown - implementation dependent */
/*
* a_flags
*/
#define EX_DYNAMIC 0x20
#define EX_PIC 0x10
#define EX_DPMASK 0x30
/*
* Interpretation of the (a_flags & EX_DPMASK) bits:
*
* 00 traditional executable or object file
* 01 object file contains PIC code (set by `as -k')
* 10 dynamic executable
* 11 position independent executable image
* (eg. a shared library)
*
*/
/*
* The a.out structure's a_midmag field is a network-byteorder encoding
* of this int
* FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
* Where `F' is 6 bits of flag like EX_DYNAMIC,
* `m' is 10 bits of machine-id like MID_I386, and
* `M' is 16 bits worth of magic number, ie. ZMAGIC.
*/
#define AOUT_GETMAGIC(ex) \
#define AOUT_GETMAGIC2(ex) \
#define AOUT_GETMID(ex) \
#define AOUT_GETFLAG(ex) \
(((mag)&0xffffU)) ) )
#define AOUT_ALIGN(ex,x) \
/* Valid magic number check. */
#define AOUT_BADMAG(ex) \
/* Address of the bottom of the text segment. */
/* Address of the bottom of the data segment. */
#define AOUT_DATADDR(ex) \
/* Address of the bottom of the bss segment. */
#define AOUT_BSSADDR(ex) \
/* Text segment offset. */
#define AOUT_TXTOFF(ex) \
sizeof(struct AOUT_exec)) )
/* Data segment offset. */
#define AOUT_DATOFF(ex) \
/* Text relocation table offset. */
#define AOUT_TRELOFF(ex) \
/* Data relocation table offset. */
#define AOUT_DRELOFF(ex) \
/* Symbol table offset. */
#define AOUT_SYMOFF(ex) \
/* String table offset. */
#define AOUT_STROFF(ex) \
/* Relocation format. */
struct relocation_info_i386 {
int r_address; /* offset in text or data segment */
};
#define relocation_info relocation_info_i386
/*
* Symbol table entry format. The #ifdef's are so that programs including
* nlist.h can initialize nlist structures statically.
*/
typedef struct AOUT_nlist {
union {
char *n_name; /* symbol name (in memory) */
long n_strx; /* file string table offset (on disk) */
} n_un;
unsigned char n_type; /* type defines */
char n_other; /* spare */
short n_desc; /* used by stab entries */
} AOUT_nlist;
#endif