asm.h revision 1.1 
1/*	$NetBSD: asm.h,v 1.7 1994/10/27 04:15:56 cgd Exp $	*/
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	@(#)asm.h	5.5 (Berkeley) 5/7/91
39 */
40
41#ifndef _I386_ASM_H_
42#define _I386_ASM_H_
43
44#ifdef PIC
45#define PIC_PROLOGUE	\
46	pushl	%ebx;	\
47	call	1f;	\
481:			\
49	popl	%ebx;	\
50	addl	$_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
51#define PIC_EPILOGUE	\
52	popl	%ebx
53#define PIC_PLT(x)	x@PLT
54#define PIC_GOT(x)	x@GOT(%ebx)
55#define PIC_GOTOFF(x)	x@GOTOFF(%ebx)
56#else
57#define PIC_PROLOGUE
58#define PIC_EPILOGUE
59#define PIC_PLT(x)	x
60#define PIC_GOT(x)	x
61#define PIC_GOTOFF(x)	x
62#endif
63
64#ifdef __STDC__
65# define _C_LABEL(x)	_ ## x
66#else
67# define _C_LABEL(x)	_/**/x
68#endif
69#define	_ASM_LABEL(x)	x
70
71#define _ENTRY(x) \
72	.text; .align 2; .globl x; .type x,@function; x:
73
74#ifdef PROF
75# define _PROF_PROLOGUE	\
76	pushl %ebp; movl %esp,%ebp; call PIC_PLT(mcount); popl %ebp
77#else
78# define _PROF_PROLOGUE
79#endif
80
81#define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
82#define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
83
84#define	ASMSTR		.asciz
85
86#define RCSID(x)	.text; .asciz x
87
88#endif /* !_I386_ASM_H_ */
89