sys/arch/m68k/include/profile.h

   1 /*      $NetBSD: profile.h,v 1.18 2006/02/16 20:17:13 perry Exp $       */
   2
   3 /*
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)profile.h   8.1 (Berkeley) 6/10/93
  32  */
  33
  34 #define _MCOUNT_DECL static __inline void _mcount
  35
  36 #ifdef __ELF__
  37 #define MCOUNT_ENTRY    "__mcount"
  38 #else
  39 #define MCOUNT_ENTRY    "mcount"
  40 #endif
  41
  42 #ifndef __mc68010__
  43 #define MCOUNT \
  44 extern void mcount(void) __asm(MCOUNT_ENTRY) \
  45         __attribute__((__no_instrument_function__)); \
  46 void mcount() { \
  47         int selfpc, frompcindex; \
  48         __asm("movl %%a6@(4),%0" : "=r" (selfpc)); \
  49         __asm("movl %%a6@(0)@(4),%0" : "=r" (frompcindex)); \
  50         _mcount(frompcindex, selfpc); \
  51 }
  52 #else   /* __mc68010__ */
  53 /*
  54  * The 68010 doesn't have the memory indirect addressing mode
  55  * that the above definition of mcount uses, so we're forced
  56  * to do something different.
  57  */
  58 #define MCOUNT \
  59 extern void mcount(void) __asm("mcount"); void mcount() { \
  60         int selfpc, frompcindex; \
  61         __asm("movl %%a6@(4),%0" : "=r" (selfpc)); \
  62         __asm("movl %%a6@(0),%%a0 ; movl %%a0@(4),%0" : "=r" (frompcindex) : /* no inputs */ : "a0"); \
  63         _mcount(frompcindex, selfpc); \
  64 }
  65 #endif  /* __mc68010__ */
  66
  67 #ifdef _KERNEL
  68 /*
  69  * The following two macros do splhigh and splx respectively.
  70  * They have to be defined this way because these are real
  71  * functions on the HP, and we do not want to invoke mcount
  72  * recursively.
  73  */
  74 #define MCOUNT_ENTER \
  75         __asm("movw     %%sr,%0" : "=g" (s)); \
  76         __asm("movw     #0x2700,%sr")
  77
  78 #define MCOUNT_EXIT \
  79         __asm("movw     %0,%%sr" : : "g" (s))
  80 #endif /* _KERNEL */