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 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