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 1.25 2008/06/29 21:38:21 dillon 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(__DEVOLATILE(struct 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 while (lp == NULL) { 67 --np; 68 p = p->p_list.le_next; 69 if (p == NULL && np > 0) 70 p = zombproc.lh_first; 71 if (p == NULL) 72 break; 73 lp = FIRST_LWP_IN_PROC(__DEVOLATILE(struct proc *, p)); 74 } 75 /* 76 * XXX just take 20 for now... 77 */ 78 if (db_more(&nl) < 0) 79 return; 80 if (p == NULL) { 81 kprintf("oops, ran out of processes early!\n"); 82 break; 83 } 84 pp = p->p_pptr; 85 if (pp == NULL) 86 pp = p; 87 88 db_printf("%5d %8p %4d %5d %5d %06x %06x %d %d", 89 p->p_pid, (volatile void *)lp, 90 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 91 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, 92 lp->lwp_flag, p->p_stat, lp->lwp_stat); 93 if (lp->lwp_wchan) { 94 db_printf(" %6s %8p", 95 (lp->lwp_wmesg ? lp->lwp_wmesg : "?"), 96 lp->lwp_wchan); 97 } else { 98 db_printf(" "); 99 } 100 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 101 db_dump_td_tokens(lp->lwp_thread); 102 103 lp = lwp_rb_tree_RB_NEXT(lp); 104 } 105 106 /* 107 * Dump running threads 108 */ 109 for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) { 110 struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi; 111 thread_t td; 112 int j; 113 114 if (db_more(&nl) < 0) 115 return; 116 db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n", 117 gd->gd_cpuid, gd->gd_runqmask, 118 gd->gd_curthread, gd->gd_reqflags); 119 if (gd->gd_curthread && gd->gd_curthread->td_preempted) { 120 db_printf(" PREEMPTING THREAD %p\n", 121 gd->gd_curthread->td_preempted); 122 } 123 124 if (db_more(&nl) < 0) 125 return; 126 db_printf(" INCOMING IPIQS:"); 127 for (j = 0; j < ncpus; ++j) { 128 lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; 129 if (ip != NULL) { 130 ip = &ip[cpuidx]; 131 if (ip->ip_windex != ip->ip_rindex) 132 db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); 133 } 134 } 135 db_printf("\n"); 136 137 if (db_more(&nl) < 0) 138 return; 139 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 140 for (np = 0; np < 32; ++np) { 141 TAILQ_FOREACH(td, &gd->gd_tdrunq[np], td_threadq) { 142 if (db_more(&nl) < 0) 143 return; 144 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 145 np, td, 146 (td->td_proc ? td->td_proc->p_pid : -1), 147 td->td_flags, 148 td->td_pri & TDPRI_MASK, 149 td->td_pri / TDPRI_CRIT, 150 #ifdef SMP 151 td->td_mpcount, 152 #else 153 0, 154 #endif 155 td->td_sp, 156 td->td_wmesg ? td->td_wmesg : "-", 157 td->td_proc ? td->td_proc->p_comm : td->td_comm); 158 if (td->td_preempted) 159 db_printf(" PREEMPTING THREAD %p\n", td->td_preempted); 160 db_dump_td_tokens(td); 161 } 162 } 163 if (db_more(&nl) < 0) 164 return; 165 db_printf("\n"); 166 if (db_more(&nl) < 0) 167 return; 168 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 169 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { 170 if (db_more(&nl) < 0) 171 return; 172 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 173 np, td, 174 (td->td_proc ? td->td_proc->p_pid : -1), 175 td->td_flags, 176 td->td_pri & TDPRI_MASK, 177 td->td_pri / TDPRI_CRIT, 178 #ifdef SMP 179 td->td_mpcount, 180 #else 181 0, 182 #endif 183 td->td_sp, 184 td->td_wmesg ? td->td_wmesg : "-", 185 td->td_proc ? td->td_proc->p_comm : td->td_comm); 186 db_dump_td_tokens(td); 187 } 188 } 189 if (db_more(&nl) < 0) 190 return; 191 db_printf("CURCPU %d CURTHREAD %p (%d)\n", 192 mycpu->gd_cpuid, 193 curthread, 194 (curthread->td_proc ? curthread->td_proc->p_pid : -1)); 195 db_dump_td_tokens(curthread); 196 } 197 198 static void 199 db_dump_td_tokens(thread_t td) 200 { 201 lwkt_tokref_t ref; 202 lwkt_token_t tok; 203 204 if (td->td_toks == NULL) 205 return; 206 db_printf(" TOKENS:"); 207 for (ref = td->td_toks; ref; ref = ref->tr_next) { 208 tok = ref->tr_tok; 209 210 db_printf(" %p[tok=%p", ref, ref->tr_tok); 211 #ifdef SMP 212 if (td == tok->t_owner) 213 db_printf(",held"); 214 #endif 215 db_printf("]"); 216 } 217 db_printf("\n"); 218 } 219 220