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/* $OpenBSD: asm.h,v 1.3 1997/01/13 11:51:09 niklas Exp $ */
/* $NetBSD: asm.h,v 1.12 1996/11/30 02:49:00 jtc Exp $ */
/*
* Copyright (c) 1994 Allen Briggs
* All rights reserved.
*
* Gleaned from locore.s and sun3 asm.h which had the following copyrights:
* locore.s:
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990 The Regents of the University of California.
* sun3/include/asm.h:
* Copyright (c) 1993 Adam Glass
* Copyright (c) 1990 The Regents of the University of California.
*
* 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.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
#ifndef _ASM_H_
#define _ASM_H_
#ifdef __STDC__
#define _C_LABEL(name) _ ## name
#else
#define _C_LABEL(name) _/**/name
#endif
#define _ASM_LABEL(name) name
#ifndef _KERNEL
#define _ENTRY(name) \
.text; .even; .globl name; .type name,@function; name:
#else
#define _ENTRY(name) \
.text; .even; .globl name; name:
#endif
#ifdef GPROF
#define _PROF_PROLOG link a6,#0; jbsr mcount; unlk a6
#else
#define _PROF_PROLOG
#endif
#define ENTRY(name) _ENTRY(_C_LABEL(name)) _PROF_PROLOG
#define ASENTRY(name) _ENTRY(_ASM_LABEL(name)) _PROF_PROLOG
/*
* The m68k ALTENTRY macro is very different than the traditional
* implementation used by other OpenBSD ports. Usually ALTENTRY
* simply provides an alternate function entry point. The m68k
* definition takes a second argument and jumps inside the second
* function when profiling is enabled.
*
* The m68k behavior is similar to the ENTRY2 macro found in
* solaris' asm_linkage.h.
*
* Providing ENTRY2 and changing all the code that uses ALTENTRY
* to use it would be a desirable change.
*/
#ifdef PROF
#define ALTENTRY(name, rname) ENTRY(name); jra rname+12
#else
#define ALTENTRY(name, rname) _ENTRY(_C_LABEL(name))
#endif
#define RCSID(x) .text; .asciz x
#endif /* _ASM_H_ */
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