Home | History | Annotate | Line # | Download | only in freebsd
freebsd_exec.h revision 1.2 
      1 /*	$NetBSD: freebsd_exec.h,v 1.2 1998/01/05 17:51:27 perry Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	from: @(#)exec.h	8.1 (Berkeley) 6/11/93
     36  *	from: imgact_aout.h,v 1.2 1994/12/30 08:06:19 bde Exp
     37  */
     38 
     39 #ifndef	_FREEBSD_EXEC_H
     40 #define	_FREEBSD_EXEC_H
     41 
     42 #define FREEBSD_N_GETMAGIC(ex) \
     43 	( (ex).a_midmag & 0xffff )
     44 #define FREEBSD_N_GETMID(ex) \
     45 	( ((ex).a_midmag >> 16) & 0x03ff )
     46 #define FREEBSD_N_GETFLAG(ex) \
     47 	( ((ex).a_midmag >> 26) & 0x3f )
     48 #define FREEBSD_N_SETMAGIC(ex,mag,mid,flag) \
     49 	( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
     50 	((mag) & 0xffff) )
     51 
     52 #define FREEBSD_N_ALIGN(ex,x) \
     53 	(FREEBSD_N_GETMAGIC(ex) == ZMAGIC || \
     54 	 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? \
     55 	 ((x) + FREEBSD___LDPGSZ - 1) & \
     56 	 ~(unsigned long)(FREEBSD___LDPGSZ - 1) : (x))
     57 
     58 /* Valid magic number check. */
     59 #define	FREEBSD_N_BADMAG(ex) \
     60 	(FREEBSD_N_GETMAGIC(ex) != OMAGIC && \
     61 	 FREEBSD_N_GETMAGIC(ex) != NMAGIC && \
     62 	 FREEBSD_N_GETMAGIC(ex) != ZMAGIC && \
     63 	 FREEBSD_N_GETMAGIC(ex) != QMAGIC)
     64 
     65 /* Address of the bottom of the text segment. */
     66 #define FREEBSD_N_TXTADDR(ex) \
     67 	((FREEBSD_N_GETMAGIC(ex) == OMAGIC || \
     68 	  FREEBSD_N_GETMAGIC(ex) == NMAGIC || \
     69 	  FREEBSD_N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
     70 
     71 /* Address of the bottom of the data segment. */
     72 #define FREEBSD_N_DATADDR(ex) \
     73 	FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTADDR(ex) + (ex).a_text)
     74 
     75 /* Text segment offset. */
     76 #define	FREEBSD_N_TXTOFF(ex) \
     77 	(FREEBSD_N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : \
     78 	 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec))
     79 
     80 /* Data segment offset. */
     81 #define	FREEBSD_N_DATOFF(ex) \
     82 	FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTOFF(ex) + (ex).a_text)
     83 
     84 /* Relocation table offset. */
     85 #define FREEBSD_N_RELOFF(ex) \
     86 	FREEBSD_N_ALIGN(ex, FREEBSD_N_DATOFF(ex) + (ex).a_data)
     87 
     88 /* Symbol table offset. */
     89 #define FREEBSD_N_SYMOFF(ex) \
     90 	(FREEBSD_N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
     91 
     92 /* String table offset. */
     93 #define	FREEBSD_N_STROFF(ex) 	(FREEBSD_N_SYMOFF(ex) + (ex).a_syms)
     94 
     95 #define	FREEBSD_AOUT_HDR_SIZE	sizeof(struct exec)
     96 
     97 int exec_freebsd_aout_makecmds __P((struct proc *, struct exec_package *));
     98 
     99 extern char freebsd_sigcode[], freebsd_esigcode[];
    100 
    101 #endif /* !_FREEBSD_EXEC_H */
    102