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#include <sys/regset.h>
31
32#if defined(__lint)
33#include <ucontext.h>
34#endif
35
36#include "kmdb_context_off.h"
37
38#define	UC_GREG(name)	(UC_MCTX + MCTX_GREGS + (name * MCTX_GREGS_INCR))
39
40#if defined(__lint)
41/*ARGSUSED*/
42int
43kmdb_setcontext(ucontext_t *ucp)
44{
45	return (0);
46}
47#else
48
49	ENTRY(kmdb_setcontext)
50	flushw
51
52	mov	%o0, %g7
53
54	ldx	[%g7 + UC_GREG(REG_O0)], %o0
55	ldx	[%g7 + UC_GREG(REG_O1)], %o1
56	ldx	[%g7 + UC_GREG(REG_O2)], %o2
57	ldx	[%g7 + UC_GREG(REG_O3)], %o3
58	ldx	[%g7 + UC_GREG(REG_O4)], %o4
59	ldx	[%g7 + UC_GREG(REG_O5)], %o5
60	ldx	[%g7 + UC_GREG(REG_O6)], %o6
61	ldx	[%g7 + UC_GREG(REG_O7)], %o7
62
63	ldx	[%g7 + UC_GREG(REG_G1)], %g1
64	ldx	[%g7 + UC_GREG(REG_G2)], %g2
65	ldx	[%g7 + UC_GREG(REG_G3)], %g3
66	ldx	[%g7 + UC_GREG(REG_G4)], %g4
67	ldx	[%g7 + UC_GREG(REG_G5)], %g5
68	ldx	[%g7 + UC_GREG(REG_G6)], %g6
69
70	/* ick */
71	ldx	[%g7 + UC_GREG(REG_PC)], %l0
72	jmp	%l0
73	ldx	[%g7 + UC_GREG(REG_G7)], %g7
74
75	SET_SIZE(kmdb_setcontext)
76
77#endif
78