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      1 /*	$NetBSD: profile.h,v 1.25 2021/02/18 20:37:02 skrll 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. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	@(#)profile.h	8.1 (Berkeley) 6/10/93
     35  */
     36 
     37 #ifndef _MIPS_PROFILE_H_
     38 #define	_MIPS_PROFILE_H_
     39 
     40 #if defined(_KERNEL_OPT)
     41 #include "opt_gprof.h"
     42 #endif
     43 
     44 #ifdef _KERNEL
     45  /*
     46   *  Declare non-profiled _splhigh() /_splx() entrypoints for _mcount.
     47   *  see MCOUNT_ENTER and MCOUNT_EXIT.
     48   */
     49 #define	_KERNEL_MCOUNT_DECL		\
     50 	int splhigh_noprof(void);	\
     51 	void splx_noprof(int);
     52 #else   /* !_KERNEL */
     53 /* Make __mcount static. */
     54 #define	_KERNEL_MCOUNT_DECL	static
     55 #endif	/* !_KERNEL */
     56 
     57 #ifdef _KERNEL
     58 # define _PROF_CPLOAD	""
     59 #else
     60 # define _PROF_CPLOAD	".cpload $25;"
     61 #endif
     62 
     63 
     64 #define	_MCOUNT_DECL \
     65     _KERNEL_MCOUNT_DECL \
     66     void __attribute__((unused)) __mcount
     67 
     68 #ifdef __mips_o32	/* 32-bit version */
     69 #define	MCOUNT \
     70 	__asm(".globl _mcount;" \
     71 	      ".type _mcount,@function;" \
     72 	      "_mcount:;" \
     73 	      ".set noreorder;" \
     74 	      ".set noat;" \
     75 	      _PROF_CPLOAD \
     76 	      "addu $29,$29,-16;" \
     77 	      "sw $4,8($29);" \
     78 	      "sw $5,12($29);" \
     79 	      "sw $6,16($29);" \
     80 	      "sw $7,20($29);" \
     81 	      "sw $1,0($29);" \
     82 	      "sw $31,4($29);" \
     83 	      "move $5,$31;" \
     84 	      "move $4,$1;" \
     85 	      "jal __mcount;" \
     86 	      " nop;" \
     87 	      "lw $4,8($29);" \
     88 	      "lw $5,12($29);" \
     89 	      "lw $6,16($29);" \
     90 	      "lw $7,20($29);" \
     91 	      "lw $31,4($29);" \
     92 	      "lw $1,0($29);" \
     93 	      "addu $29,$29,24;" \
     94 	      "j $31;" \
     95 	      " move $31,$1;" \
     96 	      ".set reorder;" \
     97 	      ".set at");
     98 #else /* 64-bit */
     99 #ifdef __mips_o64
    100 # error yeahnah
    101 #endif
    102 #define	MCOUNT \
    103 	__asm(".globl _mcount;" \
    104 	      ".type _mcount,@function;" \
    105 	      "_mcount:;" \
    106 	      ".set noreorder;" \
    107 	      ".set noat;" \
    108 	      _PROF_CPLOAD \
    109 	      "daddu $29,$29,-80;"\
    110 	      "sd $4,16($29);" \
    111 	      "sd $5,24($29);" \
    112 	      "sd $6,32($29);" \
    113 	      "sd $7,40($29);" \
    114 	      "sd $8,48($29);" \
    115 	      "sd $9,56($29);" \
    116 	      "sd $10,64($29);" \
    117 	      "sd $11,72($29);" \
    118 	      "sd $1,0($29);" \
    119 	      "sd $31,8($29);" \
    120 	      "move $5,$31;" \
    121 	      "move $4,$1;" \
    122 	      "jal __mcount;" \
    123 	      " nop;" \
    124 	      "ld $4,16($29);" \
    125 	      "ld $5,24($29);" \
    126 	      "ld $6,32($29);" \
    127 	      "ld $7,40($29);" \
    128 	      "ld $8,48($29);" \
    129 	      "ld $9,56($29);" \
    130 	      "ld $10,64($29);" \
    131 	      "ld $11,72($29);" \
    132 	      "ld $31,8($29);" \
    133 	      "ld $1,0($29);" \
    134 	      "daddu $29,$29,80;" \
    135 	      "j $31;" \
    136 	      " move $31,$1;" \
    137 	      ".set reorder;" \
    138 	      ".set at");
    139 #endif /* 64-bit */
    140 
    141 #ifdef _KERNEL
    142 /*
    143  * The following two macros do splhigh and splx respectively.
    144  * We use versions of _splraise() and _splset that don't
    145  * including profiling support.
    146  */
    147 
    148 #define	MCOUNT_ENTER	s = splhigh_noprof()
    149 
    150 #define	MCOUNT_EXIT	splx_noprof(s)
    151 #endif /* _KERNEL */
    152 
    153 #endif /* _MIPS_PROFILE_H_ */
    154