profile.h revision 1.5 
1/*	$NetBSD: profile.h,v 1.5 2006/10/26 23:54:28 uwe Exp $	*/
2
3/*-
4 * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#if defined(__ELF__) && defined(__NO_LEADING_UNDERSCORES__)
30#define	_MCOUNT_DECL static void _mcount
31#else
32#define	_MCOUNT_DECL static void mcount
33#endif
34
35#define	MCOUNT __asm ("				\n\
36	.text					\n\
37	.align	2				\n\
38	.globl	__mcount			\n\
39__mcount:					\n\
40	mov.l	r4, @-r15			\n\
41	mov.l	r5, @-r15			\n\
42	mov.l	r6, @-r15			\n\
43	mov.l	r7, @-r15			\n\
44	mov.l	r0, @-r15			\n\
45	mov.l	r14, @-r15			\n\
46	sts.l	pr, @-r15			\n\
47	mov	r15, r14			\n\
48						\n\
49	mov.l	1f, r1		! _mcount	\n\
50	sts	pr, r4		! frompc	\n\
510:	bsrf	r1				\n\
52	 mov	r0, r5		! selfpc	\n\
53						\n\
54	mov	r14, r15			\n\
55	lds.l	@r15+, pr			\n\
56	mov.l	@r15+, r14			\n\
57	mov.l	@r15+, r0			\n\
58	mov.l	@r15+, r7			\n\
59	mov.l	@r15+, r6			\n\
60	mov.l	@r15+, r5			\n\
61	jmp	@r0		! real fucntion	\n\
62	 mov.l	@r15+, r4			\n\
63						\n\
64	.align	2				\n\
651:	.long	_mcount - ((0b) + 4)		\n\
66						\n\
67	.size	__mcount, . - __mcount		");
68
69#ifdef _KERNEL
70#define	MCOUNT_ENTER	s = splhigh()
71#define	MCOUNT_EXIT	splx(s)
72#endif
73