17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
2561f797f5SJason King * Copyright 2023 RackTop Systems, Inc.
267c478bd9Sstevel@tonic-gate */
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate #include <mdb/mdb_modapi.h>
297c478bd9Sstevel@tonic-gate #include <sys/types.h>
307c478bd9Sstevel@tonic-gate #include <sys/stream.h>
317c478bd9Sstevel@tonic-gate #include <sys/strlog.h>
327c478bd9Sstevel@tonic-gate
337c478bd9Sstevel@tonic-gate int
msgbuf(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)347c478bd9Sstevel@tonic-gate msgbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
357c478bd9Sstevel@tonic-gate {
367c478bd9Sstevel@tonic-gate queue_t q;
377c478bd9Sstevel@tonic-gate uintptr_t qp;
387c478bd9Sstevel@tonic-gate mblk_t next;
397c478bd9Sstevel@tonic-gate mblk_t cont;
407c478bd9Sstevel@tonic-gate log_ctl_t lctl;
417c478bd9Sstevel@tonic-gate char line[1024];
427c478bd9Sstevel@tonic-gate uint_t verbose = FALSE;
4361f797f5SJason King uint_t delta = FALSE;
4461f797f5SJason King uint_t abstime = FALSE;
457c478bd9Sstevel@tonic-gate
467c478bd9Sstevel@tonic-gate if (!(flags & DCMD_ADDRSPEC)) {
477c478bd9Sstevel@tonic-gate if (mdb_readsym(&qp, sizeof (qp), "log_recentq") == -1) {
487c478bd9Sstevel@tonic-gate mdb_warn("failed to read log_recent");
497c478bd9Sstevel@tonic-gate return (DCMD_ERR);
507c478bd9Sstevel@tonic-gate }
517c478bd9Sstevel@tonic-gate
527c478bd9Sstevel@tonic-gate if (mdb_vread(&q, sizeof (q), qp) == -1) {
537c478bd9Sstevel@tonic-gate mdb_warn("failed to read queue_t at %p", qp);
547c478bd9Sstevel@tonic-gate return (DCMD_ERR);
557c478bd9Sstevel@tonic-gate }
567c478bd9Sstevel@tonic-gate
577c478bd9Sstevel@tonic-gate if (mdb_pwalk_dcmd("b_next", "msgbuf", argc, argv,
587c478bd9Sstevel@tonic-gate (uintptr_t)q.q_first) == -1) {
597c478bd9Sstevel@tonic-gate mdb_warn("can't walk 'b_next'");
607c478bd9Sstevel@tonic-gate return (DCMD_ERR);
617c478bd9Sstevel@tonic-gate }
627c478bd9Sstevel@tonic-gate return (DCMD_OK);
637c478bd9Sstevel@tonic-gate }
647c478bd9Sstevel@tonic-gate
657c478bd9Sstevel@tonic-gate if (mdb_getopts(argc, argv,
6661f797f5SJason King 't', MDB_OPT_SETBITS, TRUE, &delta,
6761f797f5SJason King 'T', MDB_OPT_SETBITS, TRUE, &abstime,
687c478bd9Sstevel@tonic-gate 'v', MDB_OPT_SETBITS, TRUE, &verbose, NULL) != argc)
697c478bd9Sstevel@tonic-gate return (DCMD_USAGE);
707c478bd9Sstevel@tonic-gate
7161f797f5SJason King /* For backwards compatability, -v implies -T */
7261f797f5SJason King if (verbose)
7361f797f5SJason King abstime = TRUE;
7461f797f5SJason King
757c478bd9Sstevel@tonic-gate if (DCMD_HDRSPEC(flags)) {
7661f797f5SJason King int amt = 80;
7761f797f5SJason King
7861f797f5SJason King mdb_printf("%<u>");
7961f797f5SJason King if (abstime) {
8061f797f5SJason King mdb_printf("%-20s ", "TIMESTAMP");
8161f797f5SJason King amt -= 21;
8261f797f5SJason King }
8361f797f5SJason King if (delta) {
8461f797f5SJason King mdb_printf("%-20s ", "DELTA");
8561f797f5SJason King amt -= 21;
8661f797f5SJason King }
8761f797f5SJason King if (verbose) {
8861f797f5SJason King mdb_printf("%?s ", "LOGCTL");
8961f797f5SJason King amt -= 17;
9061f797f5SJason King }
9161f797f5SJason King mdb_printf("%-*s%</u>\n", amt, "MESSAGE");
927c478bd9Sstevel@tonic-gate }
937c478bd9Sstevel@tonic-gate
947c478bd9Sstevel@tonic-gate if (mdb_vread(&next, sizeof (next), addr) == -1) {
957c478bd9Sstevel@tonic-gate mdb_warn("failed to read msgb structure at %p", addr);
967c478bd9Sstevel@tonic-gate return (DCMD_ERR);
977c478bd9Sstevel@tonic-gate }
987c478bd9Sstevel@tonic-gate
997c478bd9Sstevel@tonic-gate if (mdb_vread(&lctl, sizeof (lctl), (uintptr_t)next.b_rptr) == -1) {
1007c478bd9Sstevel@tonic-gate mdb_warn("failed to read log_ctl_t at %p", next.b_rptr);
1017c478bd9Sstevel@tonic-gate return (DCMD_ERR);
1027c478bd9Sstevel@tonic-gate }
1037c478bd9Sstevel@tonic-gate
1047c478bd9Sstevel@tonic-gate if (mdb_vread(&cont, sizeof (cont), (uintptr_t)next.b_cont) == -1) {
1057c478bd9Sstevel@tonic-gate mdb_warn("failed to read msgb structure at %p", next.b_cont);
1067c478bd9Sstevel@tonic-gate return (DCMD_ERR);
1077c478bd9Sstevel@tonic-gate }
1087c478bd9Sstevel@tonic-gate
1097c478bd9Sstevel@tonic-gate if (mdb_readstr(line, sizeof (line), (uintptr_t)cont.b_rptr) == -1) {
1107c478bd9Sstevel@tonic-gate mdb_warn("failed to read string at %p", cont.b_rptr);
1117c478bd9Sstevel@tonic-gate return (DCMD_ERR);
1127c478bd9Sstevel@tonic-gate }
1137c478bd9Sstevel@tonic-gate
11461f797f5SJason King if (abstime)
11561f797f5SJason King mdb_printf("%Y ", lctl.ttime);
11661f797f5SJason King
11761f797f5SJason King if (delta) {
11861f797f5SJason King timestruc_t hr_time;
11961f797f5SJason King int64_t diff;
12061f797f5SJason King char buf[32] = { 0 };
12161f797f5SJason King
12261f797f5SJason King if (mdb_readvar(&hr_time, "panic_hrestime") == -1) {
12361f797f5SJason King mdb_warn("failed to read panic_hrestime");
12461f797f5SJason King return (DCMD_ERR);
12561f797f5SJason King }
12661f797f5SJason King
12761f797f5SJason King if (hr_time.tv_sec == 0 &&
12861f797f5SJason King mdb_readvar(&hr_time, "hrestime") == -1) {
12961f797f5SJason King mdb_warn("failed to read hrestime");
13061f797f5SJason King return (DCMD_ERR);
13161f797f5SJason King }
13261f797f5SJason King
13361f797f5SJason King diff = (int64_t)lctl.ttime - hr_time.tv_sec;
13461f797f5SJason King mdb_nicetime(SEC2NSEC(diff), buf, sizeof (buf));
13561f797f5SJason King mdb_printf("%-20s ", buf);
13661f797f5SJason King }
13761f797f5SJason King
1387c478bd9Sstevel@tonic-gate if (verbose)
13961f797f5SJason King mdb_printf("%?p ", next.b_rptr);
1407c478bd9Sstevel@tonic-gate
1417c478bd9Sstevel@tonic-gate /* skip leading CR to avoid extra lines */
1427c478bd9Sstevel@tonic-gate if (line[0] == 0x0d)
1437c478bd9Sstevel@tonic-gate mdb_printf("%s", &line[1]);
1447c478bd9Sstevel@tonic-gate else
1457c478bd9Sstevel@tonic-gate mdb_printf("%s", &line[0]);
1467c478bd9Sstevel@tonic-gate
1477c478bd9Sstevel@tonic-gate return (DCMD_OK);
1487c478bd9Sstevel@tonic-gate }
14961f797f5SJason King
15061f797f5SJason King void
msgbuf_help(void)15161f797f5SJason King msgbuf_help(void)
15261f797f5SJason King {
15361f797f5SJason King mdb_printf("Print the most recent console messages.\n\n"
15461f797f5SJason King "%<b>OPTIONS%</b>\n"
15561f797f5SJason King "\t-t\tInclude the age of the message from now.\n"
15661f797f5SJason King "\t-T\tInclude the date/time of the message.\n"
157*b8169dedSJason King "\t-v\tInclude the date/time of the message as well as the address "
158*b8169dedSJason King "of its log_ctl_t.\n");
15961f797f5SJason King }
160