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profile.h revision 1.1 
      1 /*
      2  * Copyright (c) 1992 Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Ralph Campbell.
      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  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: @(#)profile.h	7.3 (Berkeley) 2/26/93
     37  * $Id: profile.h,v 1.1 1993/10/12 03:22:39 deraadt Exp $
     38  */
     39 
     40 #define	_MCOUNT_DECL static void __mcount
     41 
     42 #define	MCOUNT \
     43 	asm(".globl _mcount;" \
     44 	"_mcount:;" \
     45 	".set noreorder;" \
     46 	".set noat;" \
     47 	"sw $4,8($29);" \
     48 	"sw $5,12($29);" \
     49 	"sw $6,16($29);" \
     50 	"sw $7,20($29);" \
     51 	"sw $1,0($29);" \
     52 	"sw $31,4($29);" \
     53 	"move $5,$31;" \
     54 	"jal __mcount;" \
     55 	"move $4,$1;" \
     56 	"lw $4,8($29);" \
     57 	"lw $5,12($29);" \
     58 	"lw $6,16($29);" \
     59 	"lw $7,20($29);" \
     60 	"lw $31,4($29);" \
     61 	"lw $1,0($29);" \
     62 	"addu $29,$29,8;" \
     63 	"j $31;" \
     64 	"move $31,$1;" \
     65 	".set reorder;" \
     66 	".set at");
     67 
     68 #ifdef KERNEL
     69 /*
     70  * The following two macros do splhigh and splx respectively.
     71  * They have to be defined this way because these are real
     72  * functions on the PMAX, and we do not want to invoke mcount
     73  * recursively.
     74  */
     75 #define	MCOUNT_ENTER
     76 
     77 #define	MCOUNT_EXIT
     78 #endif /* KERNEL */
     79