Adjust gd_vme_avail after ensuring that sufficient entries exist rather
[dragonfly.git] / sys / ddb / db_ps.c
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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 $
41a01a4d 34 * $DragonFly: src/sys/ddb/db_ps.c,v 1.9 2004/03/01 06:32:49 dillon Exp $
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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
41a01a4d 43static int
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44db_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");
41a01a4d 65 return(-1);
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66 }
67 }
41a01a4d 68 return(0);
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69}
70
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71static void db_dump_td_tokens(thread_t td);
72
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73void
74db_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;
96728c05 81 int cpuidx;
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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
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92 if (db_more(&nl) < 0)
93 return;
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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 */
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99 if (db_more(&nl) < 0)
100 return;
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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",
b7c628e4 110 p->p_pid, (volatile void *)p, (void *)p->p_thread->td_pcb,
41c20dac 111 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid,
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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 : "");
41a01a4d 119 db_dump_td_tokens(p->p_thread);
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120
121 p = p->p_list.le_next;
122 if (p == NULL && np > 0)
123 p = zombproc.lh_first;
124 }
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125
126 /*
127 * Dump running threads
128 */
96728c05 129 for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) {
96728c05 130 struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi;
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131 thread_t td;
132 int j;
96728c05 133
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134 if (db_more(&nl) < 0)
135 return;
235957ed 136 db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n",
a2a5ad0d 137 gd->gd_cpuid, gd->gd_runqmask,
235957ed 138 gd->gd_curthread, gd->gd_reqflags);
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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;
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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) {
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168 if (db_more(&nl) < 0)
169 return;
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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);
41a01a4d 178 db_dump_td_tokens(td);
26a0694b 179 }
96728c05 180 }
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181 if (db_more(&nl) < 0)
182 return;
96728c05 183 db_printf("\n");
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184 if (db_more(&nl) < 0)
185 return;
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186 db_printf(" tdq thread pid flags pri(act) sp wmesg comm\n");
187 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) {
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188 if (db_more(&nl) < 0)
189 return;
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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);
41a01a4d 198 db_dump_td_tokens(td);
96728c05 199 }
26a0694b 200 }
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201 if (db_more(&nl) < 0)
202 return;
203 db_printf("CURCPU %d CURTHREAD %p (%d)\n",
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204 mycpu->gd_cpuid,
205 curthread,
206 (curthread->td_proc ? curthread->td_proc->p_pid : -1)
207 );
41a01a4d 208 db_dump_td_tokens(curthread);
984263bc 209}
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210
211static void
212db_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