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 2003 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28#include "mdinclude.h"
29
30/*
31 * walk the namespace
32 */
33/* ARGSUSED */
34int
35namespace_walk_init(mdb_walk_state_t *wsp)
36{
37	uintptr_t	addr;
38
39	snarf_sets();
40	wsp->walk_data = mdb_alloc(sizeof (int), UM_SLEEP);
41	/* cycle through sets, start with set 0 */
42	*((int *)wsp->walk_data) = 0;
43	addr = (uintptr_t)mdset[0].s_nm;
44
45	wsp->walk_addr = addr;
46	return (WALK_NEXT);
47}
48
49int
50namespace_walk_step(mdb_walk_state_t *wsp)
51{
52	int	status;
53	struct nm_header_hdr	 hdr;
54
55	if (wsp->walk_addr == NULL) {
56		if (*((int *)wsp->walk_data) < md_nsets) {
57			*((int *)wsp->walk_data) += 1;
58			wsp->walk_addr =
59			    (uintptr_t)mdset[*((int *)wsp->walk_data)].s_nm;
60			if (wsp->walk_addr == NULL)
61				return (WALK_NEXT);
62		} else {
63			return (WALK_DONE);
64		}
65	}
66
67	mdb_printf("Namespace for set number %d\n", *((int *)wsp->walk_data));
68	if (mdb_vread(&hdr, sizeof (struct nm_header_hdr), wsp->walk_addr) !=
69	    sizeof (struct nm_header_hdr)) {
70		mdb_warn("failed to read nm_header_hdr at %p",
71		    wsp->walk_addr);
72		return (WALK_DONE);
73	}
74
75
76
77	status = wsp->walk_callback(wsp->walk_addr, (&hdr)->hh_header,
78	    wsp->walk_cbdata);
79
80	*((int *)wsp->walk_data) += 1;
81	wsp->walk_addr = (uintptr_t)mdset[*((int *)wsp->walk_data)].s_nm;
82	return (status);
83}
84
85void
86namespace_walk_fini(mdb_walk_state_t *wsp)
87{
88	mdb_free(wsp->walk_data, sizeof (int));
89}
90