/* $NetBSD: asm.h,v 1.15 1997/10/04 17:34:08 thorpej Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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 NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* * 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 /* __STDC__ */ #define _ASM_LABEL(name) name #define _ENTRY(name) \ .text; .even; .globl name; .type name,@function; name: #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 #define ENTRY_NOPROFILE(name) _ENTRY(_C_LABEL(name)) #define ASENTRY_NOPROFILE(name) _ENTRY(_ASM_LABEL(name)) /* * The m68k ALTENTRY macro is very different than the traditional * implementation used by other NetBSD 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 ; \ .even /* * Global variables of whatever sort. */ #define GLOBAL(x) \ .globl _C_LABEL(x) ; \ _C_LABEL(x): #define ASGLOBAL(x) \ .globl _ASM_LABEL(x) ; \ _ASM_LABEL(x): /* * ...and local variables. */ #define LOCAL(x) \ _C_LABEL(x): #define ASLOCAL(x) \ _ASM_LABEL(x): /* * Items in the BSS segment. */ #define BSS(name, size) \ .comm _C_LABEL(name),size #define ASBSS(name, size) \ .comm _ASM_LABEL(name),size #ifdef _KERNEL /* * Shorthand for calling panic(). * Note the side-effect: it uses up the 9: label, so be careful! */ #define PANIC(x) \ pea 9f ; \ jbsr _C_LABEL(panic) ; \ 9: .asciz x ; \ .even /* * Shorthand for defining vectors for the vector table. */ #define VECTOR(x) \ .long _C_LABEL(x) #define ASVECTOR(x) \ .long _ASM_LABEL(x) #define VECTOR_UNUSED \ .long 0 #endif /* _KERNEL */ #endif /* _ASM_H_ */