122 lines
4.4 KiB
C
122 lines
4.4 KiB
C
/*-
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* Copyright (c) 1993 Theo de Raadt
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* Copyright (c) 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)a.out.h 5.6 (Berkeley) 4/30/91
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* $Id: a.out.h,v 1.13 1994/04/07 06:34:03 deraadt Exp $
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*/
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#ifndef _AOUT_H_
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#define _AOUT_H_
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#include <sys/exec.h>
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#include <machine/exec.h>
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#ifndef N_PAGSIZ
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#define N_PAGSIZ(ex) (__LDPGSZ)
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#endif
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/*
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* The a.out structure's a_midmag field is a network-byteorder encoding
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* of this int
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* FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
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* Where `F' is 6 bits of flag like EX_DYNAMIC,
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* `m' is 10 bits of machine-id like MID_I386, and
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* `M' is 16 bits worth of magic number, ie. ZMAGIC.
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* The macros below will set/get the needed fields.
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*/
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#define N_GETMAGIC(ex) \
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( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
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#define N_GETMAGIC2(ex) \
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( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
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(((ex).a_midmag) | 0x10000) )
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#define N_GETMID(ex) \
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( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
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#define N_GETFLAG(ex) \
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( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
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#define N_SETMAGIC(ex,mag,mid,flag) \
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( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
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(((mag)&0xffff)) ) )
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#define N_ALIGN(ex,x) \
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(N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \
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((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
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/* Valid magic number check. */
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#define N_BADMAG(ex) \
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(N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
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N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
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/* Address of the bottom of the text segment. */
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#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ)
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/* Address of the bottom of the data segment. */
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#define N_DATADDR(ex) \
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(N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \
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(N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1))
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/* Address of the bottom of the bss segment. */
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#define N_BSSADDR(ex) \
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(N_DATADDR(ex) + (ex).a_data)
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/* Text segment offset. */
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#define N_TXTOFF(ex) \
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( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
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0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : \
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sizeof(struct exec)) )
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/* Data segment offset. */
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#define N_DATOFF(ex) \
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N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
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/* Text relocation table offset. */
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#define N_TRELOFF(ex) \
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(N_DATOFF(ex) + (ex).a_data)
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/* Data relocation table offset. */
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#define N_DRELOFF(ex) \
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(N_TRELOFF(ex) + (ex).a_trsize)
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/* Symbol table offset. */
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#define N_SYMOFF(ex) \
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(N_DRELOFF(ex) + (ex).a_drsize)
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/* String table offset. */
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#define N_STROFF(ex) \
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(N_SYMOFF(ex) + (ex).a_syms)
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#define _AOUT_INCLUDE_
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#include <nlist.h>
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#endif /* !_AOUT_H_ */
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