1 /*- 2 * Copyright (c) 1993 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/ddb/db_ps.c,v 1.20 1999/08/28 00:41:09 peter Exp $ 34 * $DragonFly: src/sys/ddb/db_ps.c,v 1.23 2007/05/13 18:33:57 swildner Exp $ 35 */ 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/proc.h> 39 #include <sys/cons.h> 40 41 #include <ddb/ddb.h> 42 43 static void db_dump_td_tokens(thread_t td); 44 45 void 46 db_ps(db_expr_t dummy1, boolean_t dummy2, db_expr_t dummy3, char *dummy4) 47 { 48 int np; 49 int cpuidx; 50 int nl = 0; 51 volatile struct proc *p, *pp; 52 struct lwp *lp; 53 54 np = nprocs; 55 56 if (allproc.lh_first != NULL) 57 p = allproc.lh_first; 58 else 59 p = &proc0; 60 lp = FIRST_LWP_IN_PROC(p); 61 62 if (db_more(&nl) < 0) 63 return; 64 db_printf(" pid lwp uid ppid pgrp pflag lflag stat wmesg wchan cmd\n"); 65 for (;;) { 66 /* 67 * XXX just take 20 for now... 68 */ 69 if (db_more(&nl) < 0) 70 return; 71 if (p == NULL) { 72 kprintf("oops, ran out of processes early!\n"); 73 break; 74 } 75 pp = p->p_pptr; 76 if (pp == NULL) 77 pp = p; 78 79 db_printf("%5d %8p %4d %5d %5d %06x %06x %d %d", 80 p->p_pid, (volatile void *)lp, 81 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 82 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, 83 lp->lwp_flag, p->p_stat, lp->lwp_stat); 84 if (lp->lwp_wchan) { 85 db_printf(" %6s %8p", lp->lwp_wmesg, 86 (void *)lp->lwp_wchan); 87 } else { 88 db_printf(" "); 89 } 90 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 91 db_dump_td_tokens(lp->lwp_thread); 92 93 lp = LIST_NEXT(lp, lwp_list); 94 if (lp == NULL) { 95 --np; 96 p = p->p_list.le_next; 97 if (p == NULL && np > 0) 98 p = zombproc.lh_first; 99 if (p == NULL) 100 break; 101 lp = FIRST_LWP_IN_PROC(p); 102 } 103 } 104 105 /* 106 * Dump running threads 107 */ 108 for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) { 109 struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi; 110 thread_t td; 111 int j; 112 113 if (db_more(&nl) < 0) 114 return; 115 db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n", 116 gd->gd_cpuid, gd->gd_runqmask, 117 gd->gd_curthread, gd->gd_reqflags); 118 if (gd->gd_curthread && gd->gd_curthread->td_preempted) { 119 db_printf(" PREEMPTING THREAD %p\n", 120 gd->gd_curthread->td_preempted); 121 } 122 123 if (db_more(&nl) < 0) 124 return; 125 db_printf(" INCOMING IPIQS:"); 126 for (j = 0; j < ncpus; ++j) { 127 lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; 128 if (ip != NULL) { 129 ip = &ip[cpuidx]; 130 if (ip->ip_windex != ip->ip_rindex) 131 db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); 132 } 133 } 134 db_printf("\n"); 135 136 if (db_more(&nl) < 0) 137 return; 138 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 139 for (np = 0; np < 32; ++np) { 140 TAILQ_FOREACH(td, &gd->gd_tdrunq[np], td_threadq) { 141 if (db_more(&nl) < 0) 142 return; 143 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 144 np, td, 145 (td->td_proc ? td->td_proc->p_pid : -1), 146 td->td_flags, 147 td->td_pri & TDPRI_MASK, 148 td->td_pri / TDPRI_CRIT, 149 #ifdef SMP 150 td->td_mpcount, 151 #else 152 0, 153 #endif 154 td->td_sp, 155 td->td_wmesg ? td->td_wmesg : "-", 156 td->td_proc ? td->td_proc->p_comm : td->td_comm); 157 if (td->td_preempted) 158 db_printf(" PREEMPTING THREAD %p\n", td->td_preempted); 159 db_dump_td_tokens(td); 160 } 161 } 162 if (db_more(&nl) < 0) 163 return; 164 db_printf("\n"); 165 if (db_more(&nl) < 0) 166 return; 167 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 168 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { 169 if (db_more(&nl) < 0) 170 return; 171 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 172 np, td, 173 (td->td_proc ? td->td_proc->p_pid : -1), 174 td->td_flags, 175 td->td_pri & TDPRI_MASK, 176 td->td_pri / TDPRI_CRIT, 177 #ifdef SMP 178 td->td_mpcount, 179 #else 180 0, 181 #endif 182 td->td_sp, 183 td->td_wmesg ? td->td_wmesg : "-", 184 td->td_proc ? td->td_proc->p_comm : td->td_comm); 185 db_dump_td_tokens(td); 186 } 187 } 188 if (db_more(&nl) < 0) 189 return; 190 db_printf("CURCPU %d CURTHREAD %p (%d)\n", 191 mycpu->gd_cpuid, 192 curthread, 193 (curthread->td_proc ? curthread->td_proc->p_pid : -1)); 194 db_dump_td_tokens(curthread); 195 } 196 197 static void 198 db_dump_td_tokens(thread_t td) 199 { 200 lwkt_tokref_t ref; 201 lwkt_token_t tok; 202 203 if (td->td_toks == NULL) 204 return; 205 db_printf(" TOKENS:"); 206 for (ref = td->td_toks; ref; ref = ref->tr_next) { 207 tok = ref->tr_tok; 208 209 db_printf(" %p[tok=%p", ref, ref->tr_tok); 210 #ifdef SMP 211 if (td == tok->t_owner) 212 db_printf(",held"); 213 #endif 214 db_printf("]"); 215 } 216 db_printf("\n"); 217 } 218 219