1/*-
2 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
3 * All rights reserved.
4 *
5 * Author: Chris G. Demetriou
6 *
7 * Permission to use, copy, modify and distribute this software and
8 * its documentation is hereby granted, provided that both the copyright
9 * notice and this permission notice appear in all copies of the
10 * software, derivative works or modified versions, and any portions
11 * thereof, and that both notices appear in supporting documentation.
12 *
13 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
14 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
15 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
16 *
17 * Carnegie Mellon requests users of this software to return to
18 *
19 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
20 *  School of Computer Science
21 *  Carnegie Mellon University
22 *  Pittsburgh PA 15213-3890
23 *
24 * any improvements or extensions that they make and grant Carnegie the
25 * rights to redistribute these changes.
26 *
27 *	from: NetBSD: profile.h,v 1.9 1997/04/06 08:47:37 cgd Exp
28 *	from: FreeBSD: src/sys/alpha/include/profile.h,v 1.4 1999/12/29
29 * $FreeBSD$
30 */
31
32#ifndef _MACHINE_PROFILE_H_
33#define	_MACHINE_PROFILE_H_
34
35#if !defined(_KERNEL) && !defined(_SYS_CDEFS_H_)
36#error this file needs sys/cdefs.h as a prerequisite
37#endif
38
39#define	FUNCTION_ALIGNMENT	32
40
41typedef u_long	fptrdiff_t;
42
43#ifdef _KERNEL
44
45#include <machine/cpufunc.h>
46#include <machine/intr_machdep.h>
47
48#define	_MCOUNT_DECL	void mcount
49#define	MCOUNT
50
51#define	MCOUNT_DECL(s)	register_t s;
52#define	MCOUNT_ENTER(s)	s = rdpr(pil); wrpr(pil, 0, PIL_TICK)
53#define	MCOUNT_EXIT(s)	wrpr(pil, 0, s)
54
55void bintr(void);
56void btrap(void);
57void eintr(void);
58void user(void);
59
60#define	MCOUNT_FROMPC_USER(pc)					\
61	((pc < (uintfptr_t)VM_MAXUSER_ADDRESS) ? (uintfptr_t)user : pc)
62
63#define	MCOUNT_FROMPC_INTR(pc)					\
64	((pc >= (uintfptr_t)btrap && pc < (uintfptr_t)eintr) ?	\
65	    ((pc >= (uintfptr_t)bintr) ? (uintfptr_t)bintr :	\
66		(uintfptr_t)btrap) : ~0UL)
67
68void	mcount(uintfptr_t frompc, uintfptr_t selfpc);
69
70#else /* !_KERNEL */
71
72typedef u_long	uintfptr_t;
73
74#define	_MCOUNT_DECL	static __inline void __mcount
75
76#ifdef __GNUCLIKE_ASM
77#define	MCOUNT								\
78void									\
79_mcount()								\
80{									\
81	uintfptr_t frompc, selfpc;					\
82									\
83	/*								\
84	 * Find the return address for mcount,				\
85	 * and the return address for mcount's caller.			\
86	 *								\
87	 * selfpc = pc pushed by call to mcount				\
88	 */								\
89	__asm("add %%o7, 8, %0" : "=r" (selfpc));			\
90	/*								\
91	 * frompc = pc pushed by call to mcount's caller.		\
92	 */								\
93	__asm("add %%i7, 8, %0" : "=r" (frompc));			\
94	__mcount(frompc, selfpc);					\
95}
96#else /* !__GNUCLIKE_ASM */
97#define	MCOUNT
98#endif /* __GNUCLIKE_ASM */
99
100#endif /* _KERNEL */
101
102#endif /* !_MACHINE_PROFILE_H_ */
103