xref: /titanic_51/usr/src/lib/libumem/sparc/asm_subr.s (revision a31148363f598def767ac48c5d82e1572e44b935)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/asm_linkage.h>
30
31#if defined(lint)
32
33void *
34getfp(void)
35{
36	return (NULL);
37}
38
39void
40flush_windows(void)
41{
42
43}
44
45#ifndef UMEM_STANDALONE
46void
47_breakpoint(void)
48{
49	return;
50}
51#endif
52
53#else	/* lint */
54
55	ENTRY(getfp)
56	retl
57	mov	%fp, %o0
58	SET_SIZE(getfp)
59
60#ifdef UMEM_STANDALONE
61#ifdef __sparcv9
62
63	/*
64	 * The caller doesn't need the top window to be flushed, so this
65	 * is sufficient.
66	 */
67	ENTRY(flush_windows)
68	retl
69	flushw
70	SET_SIZE(flush_windows)
71
72#else	/* !__sparcv9 */
73#error	"This file does not provide a pre-v9 standalone flush_windows"
74#endif	/* __sparcv9 */
75
76#else	/* !UMEM_STANDALONE */
77
78	ENTRY(flush_windows)
79	retl
80	ta	0x3
81	SET_SIZE(flush_windows)
82
83#endif	/* UMEM_STANDALONE */
84
85#ifndef UMEM_STANDALONE
86	ENTRY(_breakpoint)
87	retl
88	ta	0x1
89	SET_SIZE(_breakpoint)
90#endif
91
92#endif	/* lint */
93