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freebsd_exec.h revision 1.1 
      1 /*-
      2  * Copyright (c) 1992, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	from: @(#)exec.h	8.1 (Berkeley) 6/11/93
     34  *	from: imgact_aout.h,v 1.2 1994/12/30 08:06:19 bde Exp
     35  */
     36 
     37 #ifndef	_FREEBSD_EXEC_H
     38 #define	_FREEBSD_EXEC_H
     39 
     40 #define FREEBSD_N_GETMAGIC(ex) \
     41 	( (ex).a_midmag & 0xffff )
     42 #define FREEBSD_N_GETMID(ex) \
     43 	( ((ex).a_midmag >> 16) & 0x03ff )
     44 #define FREEBSD_N_GETFLAG(ex) \
     45 	( ((ex).a_midmag >> 26) & 0x3f )
     46 #define FREEBSD_N_SETMAGIC(ex,mag,mid,flag) \
     47 	( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
     48 	((mag) & 0xffff) )
     49 
     50 #define FREEBSD_N_ALIGN(ex,x) \
     51 	(FREEBSD_N_GETMAGIC(ex) == ZMAGIC || \
     52 	 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? \
     53 	 ((x) + FREEBSD___LDPGSZ - 1) & \
     54 	 ~(unsigned long)(FREEBSD___LDPGSZ - 1) : (x))
     55 
     56 /* Valid magic number check. */
     57 #define	FREEBSD_N_BADMAG(ex) \
     58 	(FREEBSD_N_GETMAGIC(ex) != OMAGIC && \
     59 	 FREEBSD_N_GETMAGIC(ex) != NMAGIC && \
     60 	 FREEBSD_N_GETMAGIC(ex) != ZMAGIC && \
     61 	 FREEBSD_N_GETMAGIC(ex) != QMAGIC)
     62 
     63 /* Address of the bottom of the text segment. */
     64 #define FREEBSD_N_TXTADDR(ex) \
     65 	((FREEBSD_N_GETMAGIC(ex) == OMAGIC || \
     66 	  FREEBSD_N_GETMAGIC(ex) == NMAGIC || \
     67 	  FREEBSD_N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
     68 
     69 /* Address of the bottom of the data segment. */
     70 #define FREEBSD_N_DATADDR(ex) \
     71 	FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTADDR(ex) + (ex).a_text)
     72 
     73 /* Text segment offset. */
     74 #define	FREEBSD_N_TXTOFF(ex) \
     75 	(FREEBSD_N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : \
     76 	 FREEBSD_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec))
     77 
     78 /* Data segment offset. */
     79 #define	FREEBSD_N_DATOFF(ex) \
     80 	FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTOFF(ex) + (ex).a_text)
     81 
     82 /* Relocation table offset. */
     83 #define FREEBSD_N_RELOFF(ex) \
     84 	FREEBSD_N_ALIGN(ex, FREEBSD_N_DATOFF(ex) + (ex).a_data)
     85 
     86 /* Symbol table offset. */
     87 #define FREEBSD_N_SYMOFF(ex) \
     88 	(FREEBSD_N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
     89 
     90 /* String table offset. */
     91 #define	FREEBSD_N_STROFF(ex) 	(FREEBSD_N_SYMOFF(ex) + (ex).a_syms)
     92 
     93 #define	FREEBSD_AOUT_HDR_SIZE	sizeof(struct exec)
     94 
     95 int exec_freebsd_aout_makecmds __P((struct proc *, struct exec_package *));
     96 
     97 extern char freebsd_sigcode[], freebsd_esigcode[];
     98 
     99 #endif /* !_FREEBSD_EXEC_H */
    100