/*
 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Chris G. Demetriou
 * 
 * Permission to use, copy, modify and distribute this software and
 * its documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 *
 *	from: NetBSD: profile.h,v 1.9 1997/04/06 08:47:37 cgd Exp
 *	from: FreeBSD: src/sys/alpha/include/profile.h,v 1.4 1999/12/29
 * $FreeBSD$
 */

#ifndef _MACHINE_PROFILE_H_
#define	_MACHINE_PROFILE_H_

#define	FUNCTION_ALIGNMENT 32
#define	_MCOUNT_DECL	void mcount
#define	MCOUNT

typedef u_long	fptrdiff_t;

#ifdef _KERNEL

#include <machine/cpufunc.h>

#define	MCOUNT_DECL(s)	register_t s;
#define	MCOUNT_ENTER(s)	s = rdpr(pil); wrpr(pil, 0, 14)
#define	MCOUNT_EXIT(s)	wrpr(pil, 0, s)

#ifdef GUPROF

#define	CALIB_SCALE	1000
#define	KCOUNT(p,index) \
	((p)->kcount[(index) / (HISTFRACTION * sizeof(HISTCOUNTER))])
#define	PC_TO_I(p, pc)	((uintfptr_t)(pc) - (uintfptr_t)(p)->lowpc)

struct gmonparam;

extern	int cputime_bias;

int	cputime(void);
void	nullfunc_loop_profiled(void);
void	nullfunc_profiled(void);
void	startguprof(struct gmonparam *p);
void	stopguprof(struct gmonparam *p);

#else /* GUPROF */

#define startguprof(p)
#define stopguprof(p)

#endif /* GUPROF */

void	empty_loop(void);
void	kmupetext(uintfptr_t nhighpc);
void	mcount(uintfptr_t frompc, uintfptr_t selfpc);
void	mexitcount(uintfptr_t selfpc);
void	nullfunc(void);
void	nullfunc_loop(void);

#else /* _KERNEL */

typedef u_long	uintfptr_t;

#endif /* _KERNEL */

#endif /* !_MACHINE_PROFILE_H_ */