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 */ 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/proc.h> 38 #include <sys/cons.h> 39 40 #include <ddb/ddb.h> 41 42 static void db_dump_td_tokens(thread_t td); 43 44 void 45 db_ps(db_expr_t dummy1, boolean_t dummy2, db_expr_t dummy3, char *dummy4) 46 { 47 int np; 48 int cpuidx; 49 int nl = 0; 50 volatile struct proc *p, *pp; 51 struct lwp *lp; 52 53 np = nprocs; 54 55 if (allproc.lh_first != NULL) 56 p = allproc.lh_first; 57 else 58 p = &proc0; 59 lp = FIRST_LWP_IN_PROC(__DEVOLATILE(struct proc *, p)); 60 61 if (db_more(&nl) < 0) 62 return; 63 db_printf(" pid lwp uid ppid pgrp pflags lflags stat wmesg wchan cmd\n"); 64 for (;;) { 65 while (lp == NULL) { 66 --np; 67 p = p->p_list.le_next; 68 if (p == NULL && np > 0) 69 p = zombproc.lh_first; 70 if (p == NULL) 71 break; 72 lp = FIRST_LWP_IN_PROC(__DEVOLATILE(struct proc *, p)); 73 } 74 /* 75 * XXX just take 20 for now... 76 */ 77 if (db_more(&nl) < 0) 78 return; 79 if (p == NULL) { 80 kprintf("oops, ran out of processes early!\n"); 81 break; 82 } 83 pp = p->p_pptr; 84 if (pp == NULL) 85 pp = p; 86 87 db_printf("%5d %8p %4d %5d %5d %06x %06x %d %d", 88 p->p_pid, (volatile void *)lp, 89 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 90 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flags, 91 lp->lwp_flags, p->p_stat, lp->lwp_stat); 92 if (lp->lwp_wchan) { 93 db_printf(" %6s %8p", 94 (lp->lwp_wmesg ? lp->lwp_wmesg : "?"), 95 lp->lwp_wchan); 96 } else { 97 db_printf(" "); 98 } 99 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 100 db_dump_td_tokens(lp->lwp_thread); 101 102 lp = lwp_rb_tree_RB_NEXT(lp); 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 curthread %p reqflags %04x\n", 116 gd->gd_cpuid, gd->gd_curthread, gd->gd_reqflags); 117 if (gd->gd_curthread && gd->gd_curthread->td_preempted) { 118 db_printf(" PREEMPTING THREAD %p\n", 119 gd->gd_curthread->td_preempted); 120 } 121 122 if (db_more(&nl) < 0) 123 return; 124 db_printf(" INCOMING IPIQS:"); 125 for (j = 0; j < ncpus; ++j) { 126 lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; 127 if (ip != NULL) { 128 ip = &ip[cpuidx]; 129 if (ip->ip_windex != ip->ip_rindex) 130 db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); 131 } 132 } 133 db_printf("\n"); 134 135 if (db_more(&nl) < 0) 136 return; 137 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg wchan comm\n"); 138 TAILQ_FOREACH(td, &gd->gd_tdrunq, td_threadq) { 139 if (db_more(&nl) < 0) 140 return; 141 db_printf(" %p %3d %08x %2d/%02d %p %8.8s %p %s\n", 142 td, 143 (td->td_proc ? td->td_proc->p_pid : -1), 144 td->td_flags, 145 td->td_pri, 146 td->td_critcount, 147 td->td_sp, 148 td->td_wmesg ? td->td_wmesg : "-", 149 td->td_wchan, 150 td->td_proc ? td->td_proc->p_comm : td->td_comm); 151 if (td->td_preempted) 152 db_printf(" PREEMPTING THREAD %p\n", td->td_preempted); 153 db_dump_td_tokens(td); 154 } 155 if (db_more(&nl) < 0) 156 return; 157 db_printf("\n"); 158 if (db_more(&nl) < 0) 159 return; 160 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg wchan comm\n"); 161 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { 162 if (td->td_flags & TDF_MARKER) 163 continue; 164 if (db_more(&nl) < 0) 165 return; 166 db_printf(" %3d %p %3d %08x %2d/%02d %p %8.8s %p %s\n", 167 np, td, 168 (td->td_proc ? td->td_proc->p_pid : -1), 169 td->td_flags, 170 td->td_pri, 171 td->td_critcount, 172 td->td_sp, 173 td->td_wmesg ? td->td_wmesg : "-", 174 td->td_wchan, 175 td->td_proc ? td->td_proc->p_comm : td->td_comm); 176 db_dump_td_tokens(td); 177 } 178 } 179 if (db_more(&nl) < 0) 180 return; 181 db_printf("CURCPU %d CURTHREAD %p (%d)\n", 182 mycpu->gd_cpuid, 183 curthread, 184 (curthread->td_proc ? curthread->td_proc->p_pid : -1)); 185 db_dump_td_tokens(curthread); 186 } 187 188 static void 189 db_dump_td_tokens(thread_t td) 190 { 191 lwkt_tokref_t ref; 192 lwkt_token_t tok; 193 194 if (TD_TOKS_NOT_HELD(td)) 195 return; 196 db_printf(" TOKENS:"); 197 for (ref = &td->td_toks_base; ref < td->td_toks_stop; ++ref) { 198 tok = ref->tr_tok; 199 200 db_printf(" %p[tok=%p", ref, ref->tr_tok); 201 if (tok->t_ref && td == tok->t_ref->tr_owner) 202 db_printf(",held"); 203 db_printf("]"); 204 } 205 db_printf("\n"); 206 } 207 208