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Define genassym related macros in a seperate include file to prevent

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each and every xxx_genassym.c file to seperately define these and
also to promote uniformity and a level of abstraction.

Symbols are created as unsigned long by default and overridable on
a per file basis.
This commit is contained in:
Marcel Moolenaar 1999-12-23 14:06:58 +00:00
parent 3e3a313398
commit 1671c412aa
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=55027
1 changed files with 42 additions and 0 deletions
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42
sys/sys/assym.h Normal file
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/*-
* Copyright (c) 1999 Marcel Moolenaar
* 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
* in this position and unchanged.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _SYS_ASSYM_H_
#define _SYS_ASSYM_H_
#ifndef ASSYM
#define ASSYM(sym, v) unsigned long sym = (unsigned long)v
#endif
#define ASSYM_SELF(sym) ASSYM(assym_##sym, sym)
#define ASSYM_CONST(sym, v) ASSYM(assym_##sym, v)
#define ASSYM_OFFSET(sym, s, m) ASSYM(assym_##sym, (&((struct s*)0)->m))
#endif /* !_SYS_ASSYM_H_ */