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/* $OpenBSD: freebsd_exec.h,v 1.2 1996/08/02 20:34:45 niklas Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. 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
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: @(#)exec.h 8.1 (Berkeley) 6/11/93
* from: imgact_aout.h,v 1.2 1994/12/30 08:06:19 bde Exp
*/
#ifndef _FREEBSD_EXEC_H
#define _FREEBSD_EXEC_H
#define FREEBSD_N_GETMAGIC(ex) \
( (ex).a_midmag & 0xffff )
#define FREEBSD_N_GETMID(ex) \
( ((ex).a_midmag >> 16) & 0x03ff )
#define FREEBSD_N_GETFLAG(ex) \
( ((ex).a_midmag >> 26) & 0x3f )
#define FREEBSD_N_SETMAGIC(ex,mag,mid,flag) \
( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
((mag) & 0xffff) )
#define FREEBSD_N_ALIGN(ex,x) \
(FREEBSD_N_GETMAGIC(ex) == ZMAGIC || \
FREEBSD_N_GETMAGIC(ex) == QMAGIC ? \
((x) + FREEBSD___LDPGSZ - 1) & \
~(unsigned long)(FREEBSD___LDPGSZ - 1) : (x))
/* Valid magic number check. */
#define FREEBSD_N_BADMAG(ex) \
(FREEBSD_N_GETMAGIC(ex) != OMAGIC && \
FREEBSD_N_GETMAGIC(ex) != NMAGIC && \
FREEBSD_N_GETMAGIC(ex) != ZMAGIC && \
FREEBSD_N_GETMAGIC(ex) != QMAGIC)
/* Address of the bottom of the text segment. */
#define FREEBSD_N_TXTADDR(ex) \
((FREEBSD_N_GETMAGIC(ex) == OMAGIC || \
FREEBSD_N_GETMAGIC(ex) == NMAGIC || \
FREEBSD_N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
/* Address of the bottom of the data segment. */
#define FREEBSD_N_DATADDR(ex) \
FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTADDR(ex) + (ex).a_text)
/* Text segment offset. */
#define FREEBSD_N_TXTOFF(ex) \
(FREEBSD_N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : \
FREEBSD_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec))
/* Data segment offset. */
#define FREEBSD_N_DATOFF(ex) \
FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTOFF(ex) + (ex).a_text)
/* Relocation table offset. */
#define FREEBSD_N_RELOFF(ex) \
FREEBSD_N_ALIGN(ex, FREEBSD_N_DATOFF(ex) + (ex).a_data)
/* Symbol table offset. */
#define FREEBSD_N_SYMOFF(ex) \
(FREEBSD_N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
/* String table offset. */
#define FREEBSD_N_STROFF(ex) (FREEBSD_N_SYMOFF(ex) + (ex).a_syms)
#define FREEBSD_AOUT_HDR_SIZE sizeof(struct exec)
int exec_freebsd_aout_makecmds __P((struct proc *, struct exec_package *));
extern char freebsd_sigcode[], freebsd_esigcode[];
#endif /* !_FREEBSD_EXEC_H */
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