asm.h revision 1.18
1/* $NetBSD: asm.h,v 1.18 2006/01/20 22:02:41 christos Exp $ */ 2/* 3 * Copyright (c) 1982, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)DEFS.h 8.1 (Berkeley) 6/4/93 31 */ 32 33#ifndef _VAX_ASM_H_ 34#define _VAX_ASM_H_ 35 36#define R0 0x001 37#define R1 0x002 38#define R2 0x004 39#define R3 0x008 40#define R4 0x010 41#define R5 0x020 42#define R6 0x040 43#define R7 0x080 44#define R8 0x100 45#define R9 0x200 46#define R10 0x400 47#define R11 0x800 48 49#ifdef __ELF__ 50# define _C_LABEL(x) x 51#else 52# ifdef __STDC__ 53# define _C_LABEL(x) _ ## x 54# else 55# define _C_LABEL(x) _/**/x 56# endif 57#endif 58 59#define _ASM_LABEL(x) x 60 61#ifdef __STDC__ 62# define __CONCAT(x,y) x ## y 63# define __STRING(x) #x 64#else 65# define __CONCAT(x,y) x/**/y 66# define __STRING(x) "x" 67#endif 68 69/* let kernels and others override entrypoint alignment */ 70#ifndef _ALIGN_TEXT 71# ifdef __ELF__ 72# define _ALIGN_TEXT .align 4 73# else 74# define _ALIGN_TEXT .align 2 75# endif 76#endif 77 78#define _ENTRY(x, regs) \ 79 .text; _ALIGN_TEXT; .globl x; .type x@function; x: .word regs 80 81#ifdef GPROF 82# ifdef __ELF__ 83# define _PROF_PROLOGUE \ 84 .data; 1:; .long 0; .text; moval 1b,%r0; jsb _ASM_LABEL(__mcount) 85# else 86# define _PROF_PROLOGUE \ 87 .data; 1:; .long 0; .text; moval 1b,r0; jsb _ASM_LABEL(mcount) 88# endif 89#else 90# define _PROF_PROLOGUE 91#endif 92 93#define ENTRY(x, regs) _ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE 94#define NENTRY(x, regs) _ENTRY(_C_LABEL(x), regs) 95#define ASENTRY(x, regs) _ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE 96 97#define ALTENTRY(x) .globl _C_LABEL(x); _C_LABEL(x): 98#define RCSID(x) .text; .asciz x 99 100#ifdef __ELF__ 101#define WEAK_ALIAS(alias,sym) \ 102 .weak alias; \ 103 alias = sym 104#endif 105/* 106 * STRONG_ALIAS: create a strong alias. 107 */ 108#define STRONG_ALIAS(alias,sym) \ 109 .globl alias; \ 110 alias = sym 111 112#ifdef __STDC__ 113#define WARN_REFERENCES(sym,msg) \ 114 .stabs msg ## ,30,0,0,0 ; \ 115 .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0 116#else 117#define WARN_REFERENCES(sym,msg) \ 118 .stabs msg,30,0,0,0 ; \ 119 .stabs __STRING(_C_LABEL(sym)),1,0,0,0 120#endif /* __STDC__ */ 121 122#endif /* !_VAX_ASM_H_ */ 123