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asm.h revision 1.8 
      1 /*	$NetBSD: asm.h,v 1.8 1996/11/30 02:48:59 jtc 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;	\
     48 1:			\
     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 GPROF
     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