sys/arch/mips/include/profile.h

   1 /*      $NetBSD: profile.h,v 1.19 2005/12/11 12:18:09 christos 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 #ifdef _KERNEL
  41  /*
  42   *  Declare non-profiled _splhigh() /_splx() entrypoints for _mcount.
  43   *  see MCOUNT_ENTER and MCOUNT_EXIT.
  44   */
  45 #define _KERNEL_MCOUNT_DECL             \
  46         int _splraise_noprof(int);      \
  47         int _splset_noprof(int);
  48 #else   /* !_KERNEL */
  49 /* Make __mcount static. */
  50 #define _KERNEL_MCOUNT_DECL     static
  51 #endif  /* !_KERNEL */
  52
  53 #ifdef _KERNEL
  54 # define _PROF_CPLOAD   ""
  55 #else
  56 # define _PROF_CPLOAD   ".cpload $25;"
  57 #endif
  58
  59
  60 #define _MCOUNT_DECL \
  61     _KERNEL_MCOUNT_DECL \
  62     void __attribute__((unused)) __mcount
  63
  64 #define MCOUNT \
  65         __asm(".globl _mcount;" \
  66         ".type _mcount,@function;" \
  67         "_mcount:;" \
  68         ".set noreorder;" \
  69         ".set noat;" \
  70         _PROF_CPLOAD \
  71         "addu $29,$29,-16;" \
  72         "sw $4,8($29);" \
  73         "sw $5,12($29);" \
  74         "sw $6,16($29);" \
  75         "sw $7,20($29);" \
  76         "sw $1,0($29);" \
  77         "sw $31,4($29);" \
  78         "move $5,$31;" \
  79         "move $4,$1;" \
  80         "jal __mcount;" \
  81         "nop;" \
  82         "lw $4,8($29);" \
  83         "lw $5,12($29);" \
  84         "lw $6,16($29);" \
  85         "lw $7,20($29);" \
  86         "lw $31,4($29);" \
  87         "lw $1,0($29);" \
  88         "addu $29,$29,24;" \
  89         "j $31;" \
  90         "move $31,$1;" \
  91         ".set reorder;" \
  92         ".set at");
  93
  94 #ifdef _KERNEL
  95 /*
  96  * The following two macros do splhigh and splx respectively.
  97  * We use versions of _splraise() and _splset that don't
  98  * including profiling support.
  99  */
 100
 101 #define MCOUNT_ENTER    s = _splraise_noprof(MIPS_INT_MASK)
 102
 103 #define MCOUNT_EXIT     (void)_splset_noprof(s)
 104 #endif /* _KERNEL */
 105
 106 #endif /* _MIPS_PROFILE_H_ */