Home | History | Annotate | Line # | Download | only in include
profile.h revision 1.19 
      1 /*	$NetBSD: profile.h,v 1.19 2006/08/07 23:24:55 tsutsui 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 */
     81