1 /* $NetBSD: asm.h,v 1.11 1996/09/24 00:05:55 jtc Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Allen Briggs 5 * All rights reserved. 6 * 7 * Gleaned from locore.s and sun3 asm.h which had the following copyrights: 8 * locore.s: 9 * Copyright (c) 1988 University of Utah. 10 * Copyright (c) 1982, 1990 The Regents of the University of California. 11 * sun3/include/asm.h: 12 * Copyright (c) 1993 Adam Glass 13 * Copyright (c) 1990 The Regents of the University of California. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 3. All advertising materials mentioning features or use of this software 24 * must display the following acknowledgement: 25 * This product includes software developed by the University of 26 * California, Berkeley and its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 */ 43 44 #ifndef _ASM_H_ 45 #define _ASM_H_ 46 47 #ifdef __STDC__ 48 #define _C_LABEL(name) _ ## name 49 #else 50 #define _C_LABEL(name) _/**/name 51 #endif 52 #define _ASM_LABEL(name) name 53 54 #ifndef _KERNEL 55 #define _ENTRY(name) \ 56 .text; .even; .globl name; .type name,@function; name: 57 #else 58 #define _ENTRY(name) \ 59 .text; .even; .globl name; name: 60 #endif 61 62 63 #ifdef PROF 64 #define _PROF_PROLOG link a6,#0; jbsr mcount; unlk a6 65 #else 66 #define _PROF_PROLOG 67 #endif 68 69 #define ENTRY(name) _ENTRY(_C_LABEL(name)) _PROF_PROLOG 70 #define ASENTRY(name) _ENTRY(_ASM_LABEL(name)) _PROF_PROLOG 71 72 /* 73 * The m68k ALTENTRY macro is very different than the traditional 74 * implementation used by other NetBSD ports. Usually ALTENTRY 75 * simply provides an alternate function entry point. The m68k 76 * definition takes a second argument and jumps inside the second 77 * function when profiling is enabled. 78 * 79 * The m68k behavior is similar to the ENTRY2 macro found in 80 * solaris' asm_linkage.h. 81 * 82 * Providing ENTRY2 and changing all the code that uses ALTENTRY 83 * to use it would be a desirable change. 84 */ 85 #ifdef PROF 86 #define ALTENTRY(name, rname) ENTRY(name); jra rname+12 87 #else 88 #define ALTENTRY(name, rname) _ENTRY(_C_LABEL(name)) 89 #endif 90 91 #define RCSID(x) .text; .asciz x 92 93 #endif /* _ASM_H_ */ 94