1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <mdb/mdb_modapi.h>
30*0Sstevel@tonic-gate #include <sys/types.h>
31*0Sstevel@tonic-gate #include <sys/stream.h>
32*0Sstevel@tonic-gate #include <sys/strlog.h>
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate int
msgbuf(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)35*0Sstevel@tonic-gate msgbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate queue_t q;
38*0Sstevel@tonic-gate uintptr_t qp;
39*0Sstevel@tonic-gate mblk_t next;
40*0Sstevel@tonic-gate mblk_t cont;
41*0Sstevel@tonic-gate log_ctl_t lctl;
42*0Sstevel@tonic-gate char line[1024];
43*0Sstevel@tonic-gate uint_t verbose = FALSE;
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate if (!(flags & DCMD_ADDRSPEC)) {
46*0Sstevel@tonic-gate if (mdb_readsym(&qp, sizeof (qp), "log_recentq") == -1) {
47*0Sstevel@tonic-gate mdb_warn("failed to read log_recent");
48*0Sstevel@tonic-gate return (DCMD_ERR);
49*0Sstevel@tonic-gate }
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate if (mdb_vread(&q, sizeof (q), qp) == -1) {
52*0Sstevel@tonic-gate mdb_warn("failed to read queue_t at %p", qp);
53*0Sstevel@tonic-gate return (DCMD_ERR);
54*0Sstevel@tonic-gate }
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate if (mdb_pwalk_dcmd("b_next", "msgbuf", argc, argv,
57*0Sstevel@tonic-gate (uintptr_t)q.q_first) == -1) {
58*0Sstevel@tonic-gate mdb_warn("can't walk 'b_next'");
59*0Sstevel@tonic-gate return (DCMD_ERR);
60*0Sstevel@tonic-gate }
61*0Sstevel@tonic-gate return (DCMD_OK);
62*0Sstevel@tonic-gate }
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate if (mdb_getopts(argc, argv,
65*0Sstevel@tonic-gate 'v', MDB_OPT_SETBITS, TRUE, &verbose, NULL) != argc)
66*0Sstevel@tonic-gate return (DCMD_USAGE);
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate if (DCMD_HDRSPEC(flags)) {
69*0Sstevel@tonic-gate if (verbose)
70*0Sstevel@tonic-gate mdb_printf("%<u>%20s %?s %-40s%</u>\n",
71*0Sstevel@tonic-gate "TIMESTAMP", "LOGCTL", "MESSAGE");
72*0Sstevel@tonic-gate else
73*0Sstevel@tonic-gate mdb_printf("%<u>%-70s%</u>\n", "MESSAGE");
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate if (mdb_vread(&next, sizeof (next), addr) == -1) {
77*0Sstevel@tonic-gate mdb_warn("failed to read msgb structure at %p", addr);
78*0Sstevel@tonic-gate return (DCMD_ERR);
79*0Sstevel@tonic-gate }
80*0Sstevel@tonic-gate
81*0Sstevel@tonic-gate if (mdb_vread(&lctl, sizeof (lctl), (uintptr_t)next.b_rptr) == -1) {
82*0Sstevel@tonic-gate mdb_warn("failed to read log_ctl_t at %p", next.b_rptr);
83*0Sstevel@tonic-gate return (DCMD_ERR);
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate
86*0Sstevel@tonic-gate if (mdb_vread(&cont, sizeof (cont), (uintptr_t)next.b_cont) == -1) {
87*0Sstevel@tonic-gate mdb_warn("failed to read msgb structure at %p", next.b_cont);
88*0Sstevel@tonic-gate return (DCMD_ERR);
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate if (mdb_readstr(line, sizeof (line), (uintptr_t)cont.b_rptr) == -1) {
92*0Sstevel@tonic-gate mdb_warn("failed to read string at %p", cont.b_rptr);
93*0Sstevel@tonic-gate return (DCMD_ERR);
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate if (verbose)
97*0Sstevel@tonic-gate mdb_printf("%Y %?p ", lctl.ttime, next.b_rptr);
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate /* skip leading CR to avoid extra lines */
100*0Sstevel@tonic-gate if (line[0] == 0x0d)
101*0Sstevel@tonic-gate mdb_printf("%s", &line[1]);
102*0Sstevel@tonic-gate else
103*0Sstevel@tonic-gate mdb_printf("%s", &line[0]);
104*0Sstevel@tonic-gate
105*0Sstevel@tonic-gate return (DCMD_OK);
106*0Sstevel@tonic-gate }
107