db_ps.c revision 3173 
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 *	$Id: db_ps.c,v 1.2 1994/09/27 20:35:55 phk Exp $
34 */
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/proc.h>
38#include <ddb/ddb.h>
39#include <machine/cons.h>
40
41void
42db_ps() {
43	int np;
44	int nl = 0;
45	volatile struct proc *ap, *p, *pp;
46	np = nprocs;
47	p = ap = allproc;
48
49	db_printf("  pid  proc    addr     uid     ppid  pgrp   flag stat comm         wchan\n");
50	while (--np >= 0) {
51		/*
52		 * XXX just take 20 for now...
53		 */
54		if (nl++ == 20) {
55			db_printf("--More--");
56			cngetc();
57			db_printf("\r");
58			nl = 0;
59		}
60		pp = p->p_pptr;
61		if (pp == 0)
62			pp = p;
63		if (p->p_stat) {
64		    db_printf("%5d %06x %06x %3d %5d %5d  %06x  %d  %s   ",
65			   p->p_pid, ap, p->p_addr, p->p_cred->p_ruid, pp->p_pid,
66			   p->p_pgrp->pg_id, p->p_flag, p->p_stat,
67			   p->p_comm);
68		    if (p->p_wchan) {
69			if (p->p_wmesg)
70			    db_printf("%s ", p->p_wmesg);
71			db_printf("%x", p->p_wchan);
72		    }
73		    db_printf("\n");
74		}
75		ap = p->p_next;
76		if (ap == 0 && np > 0)
77			ap = zombproc;
78		p = ap;
79    	}
80}
81