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profile.h revision 1.8 
      1 /*	$NetBSD: profile.h,v 1.8 1997/07/19 21:30:25 jonathan 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 #ifndef _MIPS_PROFILE_H_
     42 #define _MIPS_PROFILE_H_
     43 
     44 #ifdef _KERNEL
     45 #define	_KERNEL_MCOUNT_DECL \
     46     extern int _splhigh __P((void)); extern int _splx __P((int));
     47 #else
     48 #define	_KERNEL_MCOUNT_DECL
     49 #endif	/* _KERNEL */
     50 
     51 #define	_MCOUNT_DECL \
     52     _KERNEL_MCOUNT_DECL \
     53     static void __mcount
     54 
     55 #define	MCOUNT \
     56 	asm(".globl _mcount;" \
     57 	"_mcount:;" \
     58 	".set noreorder;" \
     59 	".set noat;" \
     60 	"sw $4,8($29);" \
     61 	"sw $5,12($29);" \
     62 	"sw $6,16($29);" \
     63 	"sw $7,20($29);" \
     64 	"sw $1,0($29);" \
     65 	"sw $31,4($29);" \
     66 	"move $5,$31;" \
     67 	"jal __mcount;" \
     68 	"move $4,$1;" \
     69 	"lw $4,8($29);" \
     70 	"lw $5,12($29);" \
     71 	"lw $6,16($29);" \
     72 	"lw $7,20($29);" \
     73 	"lw $31,4($29);" \
     74 	"lw $1,0($29);" \
     75 	"addu $29,$29,8;" \
     76 	"j $31;" \
     77 	"move $31,$1;" \
     78 	".set reorder;" \
     79 	".set at"); \
     80 void *_mcount_ptr = (void*)__mcount;
     81 
     82 #ifdef _KERNEL
     83 /*
     84  * The following two macros do splhigh and splx respectively.
     85  * They have to be defined this way because these are real
     86  * functions on the PMAX, and we do not want to invoke mcount
     87  * recursively.
     88  */
     89 #define	MCOUNT_ENTER	s = _splhigh()
     90 
     91 #define	MCOUNT_EXIT	_splx(s)
     92 #endif /* _KERNEL */
     93 
     94 #endif /* _MIPS_PROFILE_H_ */
     95