1/*	$NetBSD: profile.h,v 1.17 2017/05/31 11:09:22 martin Exp $ */
 2
 3/*
 4 * Copyright (c) 1992, 1993
 5 *	The Regents of the University of California.  All rights reserved.
 6 *
 7 * This software was developed by the Computer Systems Engineering group
 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
 9 * contributed to Berkeley.
10 *
11 * All advertising materials mentioning features or use of this software
12 * must display the following acknowledgement:
13 *	This product includes software developed by the University of
14 *	California, Lawrence Berkeley Laboratory.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 *    notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 *    notice, this list of conditions and the following disclaimer in the
23 *    documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 *	@(#)profile.h	8.1 (Berkeley) 6/11/93
41 */
42
43#ifdef __ELF__
44#define _MCOUNT_SYM "__mcount"
45#define	_MCOUNT_ENTRY "_mcount"
46#else
47#define _MCOUNT_SYM "___mcount"
48#define	_MCOUNT_ENTRY "mcount"
49#endif
50
51#ifdef __PIC__
52/* Inline expansion of PICCY_SET() (see <machine/asm.h>). */
53#ifdef __arch64__
54#define MCOUNT \
55	__asm(".global " _MCOUNT_ENTRY);\
56	__asm(_MCOUNT_ENTRY ":");\
57	__asm("add %o7, 8, %o1");\
58	__asm("1: rd %pc, %o2");\
59	__asm("add %o2," _MCOUNT_SYM "-1b, %o2");\
60	__asm("jmpl %o2, %g0");\
61	__asm("add %i7, 8, %o0");
62#else
63#define MCOUNT \
64	__asm(".global " _MCOUNT_ENTRY);\
65	__asm(_MCOUNT_ENTRY ":");\
66	__asm("add %o7, 8, %o1");\
67	__asm("mov %o7, %o3");\
68	__asm("1: call 2f; nop; 2:");\
69	__asm("add %o7," _MCOUNT_SYM "-1b, %o2");\
70	__asm("mov %o3, %o7");\
71	__asm("jmpl %o2, %g0");\
72	__asm("add %i7, 8, %o0");
73#endif
74#else
75#define MCOUNT \
76	__asm(".global " _MCOUNT_ENTRY);\
77	__asm(_MCOUNT_ENTRY ":");\
78	__asm("add %i7, 8, %o0");\
79	__asm("sethi %hi(" _MCOUNT_SYM "), %o2");\
80	__asm("jmpl %o2 + %lo(" _MCOUNT_SYM "), %g0");\
81	__asm("add %o7, 8, %o1");
82#endif
83
84#define	_MCOUNT_DECL	static void __mcount
85
86#ifdef _KERNEL
87/*
88 * Block interrupts during mcount so that those interrupts can also be
89 * counted (as soon as we get done with the current counting).  On the
90 * SPARC, we just splhigh/splx as those do not recursively invoke mcount.
91 */
92#define	MCOUNT_ENTER	s = splhigh()
93#define	MCOUNT_EXIT	splx(s)
94#endif /* _KERNEL */