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a.out.h revision 1.12 
      1 /*-
      2  * Copyright (c) 1991 The Regents of the University of California.
      3  * 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: @(#)a.out.h	5.6 (Berkeley) 4/30/91
     34  *	$Id: a.out.h,v 1.12 1994/01/12 19:14:21 pk Exp $
     35  */
     36 
     37 #ifndef	_AOUT_H_
     38 #define	_AOUT_H_
     39 
     40 #include <sys/exec.h>
     41 #include <machine/exec.h>
     42 
     43 
     44 #ifndef N_PAGSIZ
     45 #define	N_PAGSIZ(ex)	(__LDPGSZ)
     46 #endif
     47 
     48 #define	N_GETMAGIC(ex) \
     49     ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
     50 #define	N_GETMAGIC2(ex) \
     51     ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
     52     (((ex).a_midmag) | 0x10000) )
     53 #define	N_GETMID(ex) \
     54     ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
     55 #define	N_GETFLAG(ex) \
     56     ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
     57 #define	N_SETMAGIC(ex,mag,mid,flag) \
     58     ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
     59     (((mag)&0xffff)) ) )
     60 
     61 #define	N_ALIGN(ex,x) \
     62 	(N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \
     63 	 ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
     64 
     65 /* Valid magic number check. */
     66 #define	N_BADMAG(ex) \
     67 	(N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
     68 	    N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
     69 
     70 /* Address of the bottom of the text segment. */
     71 #define	N_TXTADDR(ex)	(N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ)
     72 
     73 /* Address of the bottom of the data segment. */
     74 #define	N_DATADDR(ex) \
     75 	(N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \
     76 		(N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1))
     77 
     78 /* Address of the bottom of the bss segment. */
     79 #define	N_BSSADDR(ex) \
     80 	(N_DATADDR(ex) + (ex).a_data)
     81 
     82 /* Text segment offset. */
     83 #define	N_TXTOFF(ex) \
     84 	( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
     85 	0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : sizeof(struct exec)) )
     86 
     87 /* Data segment offset. */
     88 #define	N_DATOFF(ex) \
     89 	N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
     90 
     91 /* Text relocation table offset. */
     92 #define	N_TRELOFF(ex) \
     93 	(N_DATOFF(ex) + (ex).a_data)
     94 
     95 /* Data relocation table offset. */
     96 #define	N_DRELOFF(ex) \
     97 	(N_TRELOFF(ex) + (ex).a_trsize)
     98 
     99 /* Symbol table offset. */
    100 #define	N_SYMOFF(ex) \
    101 	(N_DRELOFF(ex) + (ex).a_drsize)
    102 
    103 /* String table offset. */
    104 #define	N_STROFF(ex) \
    105 	(N_SYMOFF(ex) + (ex).a_syms)
    106 
    107 
    108 #define	_AOUT_INCLUDE_
    109 #include <nlist.h>
    110 
    111 #endif /* !_AOUT_H_ */
    112