1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90 33 * from: FreeBSD: src/sys/i386/include/asm.h,v 1.7 2000/01/25 34 * $FreeBSD$ 35 */ 36 37#ifndef _MACHINE_ASM_H_ 38#define _MACHINE_ASM_H_ 39 40#define __ASM__ 41 42#include <sys/cdefs.h> 43 44#ifdef PIC 45#define PIC_PROLOGUE(r1, r2) \ 46 sethi %hi(_GLOBAL_OFFSET_TABLE_-4), r1 ; \ 47 rd %pc, r2 ; \ 48 or r1, %lo(_GLOBAL_OFFSET_TABLE_+4), r1 ; \ 49 add r2, r1, r2 50#define SET(name, r1, r2) \ 51 set name, r2 ; \ 52 ldx [r1 + r2], r2 53#else 54#define PIC_PROLOGUE(r1, r2) 55#define SET(name, r1, r2) \ 56 set name, r2 57#endif 58 59/* 60 * CNAME and HIDENAME manage the relationship between symbol names in C 61 * and the equivalent assembly language names. CNAME is given a name as 62 * it would be used in a C program. It expands to the equivalent assembly 63 * language name. HIDENAME is given an assembly-language name, and expands 64 * to a possibly-modified form that will be invisible to C programs. 65 */ 66#define CNAME(csym) csym 67#define HIDENAME(asmsym) __CONCAT(.,asmsym) 68 69#define CCFSZ 192 70#define SPOFF 2047 71 72#define _ALIGN_TEXT .align 32 73 74#define _START_ENTRY \ 75 .text ; \ 76 _ALIGN_TEXT 77 78/* 79 * Define function entry and alternate entry points. 80 * 81 * The compiler produces #function for the .type pseudo-op, but the '#' 82 * character has special meaning in cpp macros, so we use @function like 83 * other architectures. The assembler seems to accept both. 84 * The assembler also accepts a .proc pseudo-op, which is used by the 85 * peep hole optimizer, whose argument is the type code of the return 86 * value. Since this is difficult to predict and its expected that 87 * assembler code is already optimized, we leave it out. 88 */ 89 90#define _ALTENTRY(x) \ 91 .globl CNAME(x) ; \ 92 .type CNAME(x),@function ; \ 93CNAME(x): 94 95#define _ENTRY(x) \ 96 _START_ENTRY ; \ 97 .globl CNAME(x) ; \ 98 .type CNAME(x),@function ; \ 99CNAME(x): 100 101#define ALTENTRY(x) _ALTENTRY(x) 102#define ENTRY(x) _ENTRY(x) 103#define END(x) .size x, . - x 104 105/* 106 * Kernel RCS ID tag and copyright macros 107 */ 108 109#undef __FBSDID 110#if !defined(lint) && !defined(STRIP_FBSDID) 111#define __FBSDID(s) .ident s 112#else 113#define __FBSDID(s) /* nothing */ 114#endif /* not lint and not STRIP_FBSDID */ 115 116#endif /* !_MACHINE_ASM_H_ */ 117