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profile.h revision 1.5 
      1 /*	$NetBSD: profile.h,v 1.5 1995/03/28 18:19:23 jtc Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Ralph Campbell.
      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  *	@(#)profile.h	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #define	_MCOUNT_DECL static void __mcount
     42 
     43 #define	MCOUNT \
     44 	asm(".globl _mcount;" \
     45 	"_mcount:;" \
     46 	".set noreorder;" \
     47 	".set noat;" \
     48 	"sw $4,8($29);" \
     49 	"sw $5,12($29);" \
     50 	"sw $6,16($29);" \
     51 	"sw $7,20($29);" \
     52 	"sw $1,0($29);" \
     53 	"sw $31,4($29);" \
     54 	"move $5,$31;" \
     55 	"jal __mcount;" \
     56 	"move $4,$1;" \
     57 	"lw $4,8($29);" \
     58 	"lw $5,12($29);" \
     59 	"lw $6,16($29);" \
     60 	"lw $7,20($29);" \
     61 	"lw $31,4($29);" \
     62 	"lw $1,0($29);" \
     63 	"addu $29,$29,8;" \
     64 	"j $31;" \
     65 	"move $31,$1;" \
     66 	".set reorder;" \
     67 	".set at");
     68 
     69 #ifdef _KERNEL
     70 /*
     71  * The following two macros do splhigh and splx respectively.
     72  * They have to be defined this way because these are real
     73  * functions on the PMAX, and we do not want to invoke mcount
     74  * recursively.
     75  */
     76 #define	MCOUNT_ENTER	s = _splhigh()
     77 
     78 #define	MCOUNT_EXIT	_splx(s)
     79 #endif /* _KERNEL */
     80