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 1.9 2004/03/01 06:32:49 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 int 44 db_more(int *nl) 45 { 46 ++*nl; 47 if (*nl == 20) { 48 int c; 49 50 db_printf("--More--"); 51 c = cngetc(); 52 db_printf("\r"); 53 /* 54 * A whole screenfull or just one line? 55 */ 56 switch (c) { 57 case '\n': /* just one line */ 58 *nl = 19; 59 break; 60 case ' ': 61 *nl = 0; /* another screenfull */ 62 break; 63 default: /* exit */ 64 db_printf("\n"); 65 return(-1); 66 } 67 } 68 return(0); 69 } 70 71 static void db_dump_td_tokens(thread_t td); 72 73 void 74 db_ps(dummy1, dummy2, dummy3, dummy4) 75 db_expr_t dummy1; 76 boolean_t dummy2; 77 db_expr_t dummy3; 78 char * dummy4; 79 { 80 int np; 81 int cpuidx; 82 int nl = 0; 83 volatile struct proc *p, *pp; 84 85 np = nprocs; 86 87 if (allproc.lh_first != NULL) 88 p = allproc.lh_first; 89 else 90 p = &proc0; 91 92 if (db_more(&nl) < 0) 93 return; 94 db_printf(" pid proc addr uid ppid pgrp flag stat wmesg wchan cmd\n"); 95 while (--np >= 0) { 96 /* 97 * XXX just take 20 for now... 98 */ 99 if (db_more(&nl) < 0) 100 return; 101 if (p == NULL) { 102 printf("oops, ran out of processes early!\n"); 103 break; 104 } 105 pp = p->p_pptr; 106 if (pp == NULL) 107 pp = p; 108 109 db_printf("%5d %8p %8p %4d %5d %5d %06x %d", 110 p->p_pid, (volatile void *)p, (void *)p->p_thread->td_pcb, 111 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 112 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, p->p_stat); 113 if (p->p_wchan) { 114 db_printf(" %6s %8p", p->p_wmesg, (void *)p->p_wchan); 115 } else { 116 db_printf(" "); 117 } 118 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 119 db_dump_td_tokens(p->p_thread); 120 121 p = p->p_list.le_next; 122 if (p == NULL && np > 0) 123 p = zombproc.lh_first; 124 } 125 126 /* 127 * Dump running threads 128 */ 129 for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) { 130 struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi; 131 thread_t td; 132 int j; 133 134 if (db_more(&nl) < 0) 135 return; 136 db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n", 137 gd->gd_cpuid, gd->gd_runqmask, 138 gd->gd_curthread, gd->gd_reqflags); 139 if (gd->gd_tokreqbase) { 140 lwkt_tokref_t ref; 141 142 if (db_more(&nl) < 0) 143 return; 144 db_printf(" tokenrequests:"); 145 for (ref = gd->gd_tokreqbase; ref; ref = ref->tr_next) { 146 db_printf(" [r=%p,t=%p]", ref, ref->tr_tok); 147 } 148 db_printf("\n"); 149 } 150 if (db_more(&nl) < 0) 151 return; 152 db_printf(" INCOMMING IPIQS:"); 153 for (j = 0; j < ncpus; ++j) { 154 lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; 155 if (ip != NULL) { 156 ip = &ip[cpuidx]; 157 if (ip->ip_windex != ip->ip_rindex) 158 db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); 159 } 160 } 161 db_printf("\n"); 162 163 if (db_more(&nl) < 0) 164 return; 165 db_printf(" tdq thread pid flags pri(act) sp wmesg comm\n"); 166 for (np = 0; np < 32; ++np) { 167 TAILQ_FOREACH(td, &gd->gd_tdrunq[np], td_threadq) { 168 if (db_more(&nl) < 0) 169 return; 170 db_printf(" %3d %p %3d %08x %3d(%3d) %p %8.8s %s\n", 171 np, td, 172 (td->td_proc ? td->td_proc->p_pid : -1), 173 td->td_flags, td->td_pri, 174 td->td_pri & TDPRI_MASK, 175 td->td_sp, 176 td->td_wmesg ? td->td_wmesg : "-", 177 td->td_proc ? td->td_proc->p_comm : td->td_comm); 178 db_dump_td_tokens(td); 179 } 180 } 181 if (db_more(&nl) < 0) 182 return; 183 db_printf("\n"); 184 if (db_more(&nl) < 0) 185 return; 186 db_printf(" tdq thread pid flags pri(act) sp wmesg comm\n"); 187 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { 188 if (db_more(&nl) < 0) 189 return; 190 db_printf(" %3d %p %3d %08x %3d(%3d) %p %8.8s %s\n", 191 np, td, 192 (td->td_proc ? td->td_proc->p_pid : -1), 193 td->td_flags, td->td_pri, 194 td->td_pri & TDPRI_MASK, 195 td->td_sp, 196 td->td_wmesg ? td->td_wmesg : "-", 197 td->td_proc ? td->td_proc->p_comm : td->td_comm); 198 db_dump_td_tokens(td); 199 } 200 } 201 if (db_more(&nl) < 0) 202 return; 203 db_printf("CURCPU %d CURTHREAD %p (%d)\n", 204 mycpu->gd_cpuid, 205 curthread, 206 (curthread->td_proc ? curthread->td_proc->p_pid : -1) 207 ); 208 db_dump_td_tokens(curthread); 209 } 210 211 static void 212 db_dump_td_tokens(thread_t td) 213 { 214 lwkt_tokref_t ref; 215 lwkt_token_t tok; 216 217 if (td->td_toks == NULL) 218 return; 219 db_printf(" TOKENS:"); 220 for (ref = td->td_toks; ref; ref = ref->tr_next) { 221 tok = ref->tr_tok; 222 223 db_printf(" %p[tok=%p", ref, ref->tr_tok); 224 if (td->td_gd == tok->t_cpu) 225 db_printf(",held"); 226 if (ref->tr_magic == LWKT_TOKREF_MAGIC1) 227 ; 228 else if (ref->tr_magic == LWKT_TOKREF_MAGIC2) 229 db_printf(",wait"); 230 else 231 db_printf(",badmagic"); 232 db_printf("]"); 233 } 234 db_printf("\n"); 235 } 236 237