2 * Copyright (c) 1993 The Regents of the University of California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
38 #include <sys/sysent.h>
39 #include <sys/systm.h>
41 #include <vm/vm_param.h>
46 static void dumpthread(volatile struct proc *p, volatile struct thread *td,
49 * At least one non-optional show-command must be implemented using
50 * DB_SHOW_ALL_COMMAND() so that db_show_all_cmd_set gets created.
53 DB_SHOW_ALL_COMMAND(procs, db_procs_cmd)
55 db_ps(addr, have_addr, count, modif);
62 * - single-threaded process
63 * - multi-threaded process
64 * - thread in a MT process
67 * 1234567890123456789012345678901234567890123456789012345678901234567890
68 * pid ppid pgrp uid state wmesg wchan cmd
69 * <pid> <ppi> <pgi> <uid> <stat> < wmesg > < wchan > <name>
70 * <pid> <ppi> <pgi> <uid> <stat> (threaded) <command>
71 * <tid > <stat> < wmesg > < wchan > <name>
73 * For machines with 64-bit pointers, we expand the wchan field 8 more
77 db_ps(db_expr_t addr, boolean_t hasaddr, db_expr_t count, char *modif)
79 volatile struct proc *p, *pp;
80 volatile struct thread *td;
84 int np, rflag, sflag, dflag, lflag, wflag;
88 if (!LIST_EMPTY(&allproc))
89 p = LIST_FIRST(&allproc);
94 db_printf(" pid ppid pgrp uid state wmesg wchan cmd\n");
96 db_printf(" pid ppid pgrp uid state wmesg wchan cmd\n");
98 while (--np >= 0 && !db_pager_quit) {
100 db_printf("oops, ran out of processes early!\n");
109 db_printf("%5d %5d %5d %5d ", p->p_pid, pp->p_pid,
110 pgrp != NULL ? pgrp->pg_id : 0,
111 cred != NULL ? cred->cr_ruid : 0);
113 /* Determine our primary process state. */
114 switch (p->p_state) {
120 * One of D, L, R, S, W. For a
121 * multithreaded process we will use
122 * the state of the thread with the
123 * highest precedence. The
124 * precendence order from high to low
125 * is R, L, D, S, W. If no thread is
126 * in a sane state we use '?' for our
129 rflag = sflag = dflag = lflag = wflag = 0;
130 FOREACH_THREAD_IN_PROC(p, td) {
131 if (td->td_state == TDS_RUNNING ||
132 td->td_state == TDS_RUNQ ||
133 td->td_state == TDS_CAN_RUN)
137 if (TD_IS_SLEEPING(td)) {
138 if (!(td->td_flags & TDF_SINTR))
143 if (TD_AWAITING_INTR(td))
172 /* Additional process state flags. */
173 if (!(p->p_flag & P_INMEM))
174 strlcat(state, "W", sizeof(state));
175 if (p->p_flag & P_TRACED)
176 strlcat(state, "X", sizeof(state));
177 if (p->p_flag & P_WEXIT && p->p_state != PRS_ZOMBIE)
178 strlcat(state, "E", sizeof(state));
179 if (p->p_flag & P_PPWAIT)
180 strlcat(state, "V", sizeof(state));
181 if (p->p_flag & P_SYSTEM || p->p_lock > 0)
182 strlcat(state, "L", sizeof(state));
183 if (p->p_session != NULL && SESS_LEADER(p))
184 strlcat(state, "s", sizeof(state));
185 /* Cheated here and didn't compare pgid's. */
186 if (p->p_flag & P_CONTROLT)
187 strlcat(state, "+", sizeof(state));
188 if (cred != NULL && jailed(cred))
189 strlcat(state, "J", sizeof(state));
190 db_printf(" %-6.6s ", state);
191 if (p->p_flag & P_HADTHREADS) {
193 db_printf(" (threaded) ");
195 db_printf(" (threaded) ");
197 if (p->p_flag & P_SYSTEM)
199 db_printf("%s", p->p_comm);
200 if (p->p_flag & P_SYSTEM)
204 FOREACH_THREAD_IN_PROC(p, td) {
205 dumpthread(p, td, p->p_flag & P_HADTHREADS);
210 p = LIST_NEXT(p, p_list);
211 if (p == NULL && np > 0)
212 p = LIST_FIRST(&zombproc);
217 dumpthread(volatile struct proc *p, volatile struct thread *td, int all)
219 char state[9], wprefix;
224 db_printf("%6d ", td->td_tid);
225 switch (td->td_state) {
227 snprintf(state, sizeof(state), "Run");
230 snprintf(state, sizeof(state), "RunQ");
233 snprintf(state, sizeof(state), "CanRun");
236 snprintf(state, sizeof(state), "Inactv");
241 strlcat(state, "L", sizeof(state));
242 if (TD_IS_SLEEPING(td)) {
243 if (td->td_flags & TDF_SINTR)
244 strlcat(state, "S", sizeof(state));
246 strlcat(state, "D", sizeof(state));
248 if (TD_IS_SWAPPED(td))
249 strlcat(state, "W", sizeof(state));
250 if (TD_AWAITING_INTR(td))
251 strlcat(state, "I", sizeof(state));
252 if (TD_IS_SUSPENDED(td))
253 strlcat(state, "s", sizeof(state));
254 if (state[0] != '\0')
257 snprintf(state, sizeof(state), "???");
259 db_printf(" %-6.6s ", state);
262 if (TD_ON_LOCK(td)) {
264 wmesg = td->td_lockname;
265 wchan = td->td_blocked;
266 } else if (TD_ON_SLEEPQ(td)) {
267 wmesg = td->td_wmesg;
268 wchan = td->td_wchan;
269 } else if (TD_IS_RUNNING(td)) {
270 snprintf(state, sizeof(state), "CPU %d", td->td_oncpu);
277 db_printf("%c%-8.8s ", wprefix, wmesg);
280 db_printf("%18s ", "");
282 db_printf("%10s ", "");
285 db_printf("%p ", wchan);
286 if (p->p_flag & P_SYSTEM)
288 if (td->td_name[0] != '\0')
289 db_printf("%s", td->td_name);
291 db_printf("%s", td->td_proc->p_comm);
292 if (p->p_flag & P_SYSTEM)
297 DB_SHOW_COMMAND(thread, db_show_thread)
300 struct lock_object *lock;
303 /* Determine which thread to examine. */
305 td = db_lookup_thread(addr, FALSE);
308 lock = (struct lock_object *)td->td_lock;
310 db_printf("Thread %d at %p:\n", td->td_tid, td);
311 db_printf(" proc (pid %d): %p\n", td->td_proc->p_pid, td->td_proc);
312 if (td->td_name[0] != '\0')
313 db_printf(" name: %s\n", td->td_name);
314 db_printf(" stack: %p-%p\n", (void *)td->td_kstack,
315 (void *)(td->td_kstack + td->td_kstack_pages * PAGE_SIZE - 1));
316 db_printf(" flags: %#x ", td->td_flags);
317 db_printf(" pflags: %#x\n", td->td_pflags);
318 db_printf(" state: ");
319 switch (td->td_state) {
321 db_printf("INACTIVE\n");
324 db_printf("CAN RUN\n");
330 db_printf("RUNNING (CPU %d)\n", td->td_oncpu);
333 db_printf("INHIBITED: {");
335 if (TD_IS_SLEEPING(td)) {
336 db_printf("SLEEPING");
339 if (TD_IS_SUSPENDED(td)) {
342 db_printf("SUSPENDED");
345 if (TD_IS_SWAPPED(td)) {
348 db_printf("SWAPPED");
351 if (TD_ON_LOCK(td)) {
357 if (TD_AWAITING_INTR(td)) {
365 db_printf("??? (%#x)\n", td->td_state);
369 db_printf(" lock: %s turnstile: %p\n", td->td_lockname,
371 if (TD_ON_SLEEPQ(td))
372 db_printf(" wmesg: %s wchan: %p\n", td->td_wmesg,
374 db_printf(" priority: %d\n", td->td_priority);
375 db_printf(" container lock: %s (%p)\n", lock->lo_name, lock);
378 DB_SHOW_COMMAND(proc, db_show_proc)
384 /* Determine which process to examine. */
386 p = db_lookup_proc(addr);
388 p = kdb_thread->td_proc;
390 db_printf("Process %d (%s) at %p:\n", p->p_pid, p->p_comm, p);
391 db_printf(" state: ");
392 switch (p->p_state) {
397 db_printf("NORMAL\n");
400 db_printf("ZOMBIE\n");
403 db_printf("??? (%#x)\n", p->p_state);
405 if (p->p_ucred != NULL) {
406 db_printf(" uid: %d gids: ", p->p_ucred->cr_uid);
407 for (i = 0; i < p->p_ucred->cr_ngroups; i++) {
408 db_printf("%d", p->p_ucred->cr_groups[i]);
409 if (i < (p->p_ucred->cr_ngroups - 1))
414 if (p->p_pptr != NULL)
415 db_printf(" parent: pid %d at %p\n", p->p_pptr->p_pid,
417 if (p->p_leader != NULL && p->p_leader != p)
418 db_printf(" leader: pid %d at %p\n", p->p_leader->p_pid,
420 if (p->p_sysent != NULL)
421 db_printf(" ABI: %s\n", p->p_sysent->sv_name);
422 if (p->p_args != NULL)
423 db_printf(" arguments: %.*s\n", (int)p->p_args->ar_length,
425 db_printf(" threads: %d\n", p->p_numthreads);
426 FOREACH_THREAD_IN_PROC(p, td) {
427 dumpthread(p, td, 1);