1/*      $NetBSD: profile.h,v 1.11 2005/12/24 23:24:07 perry Exp $ */
2/*
3 * Copyright (c) 1992 The Regents of the University of California.
4 * 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. Neither the name of the University nor the names of its contributors
15 *    may be used to endorse or promote products derived from this software
16 *    without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 *      @(#)profile.h   7.1 (Berkeley) 7/16/92
31 */
32
33/*
34 * _mcount can't be declared static, gcc will optimize it away then.
35 */
36#define _MCOUNT_DECL void _mcount
37
38/*
39 * Note here: the second argument to __mcount() is pc when mcount
40 * was called. Because it's already on the stack we only have to
41 * push previous pc _and_ tell calls that it is only one argument
42 * to __mcount, so that our return address won't get popped from stack.
43 */
44#define MCOUNT \
45__asm(".text; .globl __mcount; __mcount: pushl 16(%fp); calls $1,_mcount; rsb");
46
47#ifdef _KERNEL
48/*
49 * Note that we assume splhigh() and splx() cannot call mcount()
50 * recursively.
51 */
52#define MCOUNT_ENTER    s = splhigh()
53#define MCOUNT_EXIT     splx(s)
54#endif /* _KERNEL */
55