94 lines
3.3 KiB
C
94 lines
3.3 KiB
C
/* $NetBSD: asm.h,v 1.11 1996/09/24 00:05:55 jtc Exp $ */
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/*
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* Copyright (c) 1994 Allen Briggs
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* All rights reserved.
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*
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* Gleaned from locore.s and sun3 asm.h which had the following copyrights:
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* locore.s:
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* sun3/include/asm.h:
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* Copyright (c) 1993 Adam Glass
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* Copyright (c) 1990 The Regents of the University of California.
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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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#ifndef _ASM_H_
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#define _ASM_H_
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#ifdef __STDC__
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#define _C_LABEL(name) _ ## name
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#else
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#define _C_LABEL(name) _/**/name
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#endif
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#define _ASM_LABEL(name) name
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#ifndef _KERNEL
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#define _ENTRY(name) \
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.text; .even; .globl name; .type name,@function; name:
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#else
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#define _ENTRY(name) \
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.text; .even; .globl name; name:
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#endif
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#ifdef PROF
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#define _PROF_PROLOG link a6,#0; jbsr mcount; unlk a6
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#else
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#define _PROF_PROLOG
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#endif
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#define ENTRY(name) _ENTRY(_C_LABEL(name)) _PROF_PROLOG
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#define ASENTRY(name) _ENTRY(_ASM_LABEL(name)) _PROF_PROLOG
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/*
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* The m68k ALTENTRY macro is very different than the traditional
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* implementation used by other NetBSD ports. Usually ALTENTRY
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* simply provides an alternate function entry point. The m68k
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* definition takes a second argument and jumps inside the second
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* function when profiling is enabled.
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*
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* The m68k behavior is similar to the ENTRY2 macro found in
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* solaris' asm_linkage.h.
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*
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* Providing ENTRY2 and changing all the code that uses ALTENTRY
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* to use it would be a desirable change.
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*/
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#ifdef PROF
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#define ALTENTRY(name, rname) ENTRY(name); jra rname+12
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#else
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#define ALTENTRY(name, rname) _ENTRY(_C_LABEL(name))
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#endif
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#define RCSID(x) .text; .asciz x
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#endif /* _ASM_H_ */
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