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 1.2 2003/06/17 04:28:20 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 void 44 db_ps(dummy1, dummy2, dummy3, dummy4) 45 db_expr_t dummy1; 46 boolean_t dummy2; 47 db_expr_t dummy3; 48 char * dummy4; 49 { 50 int np; 51 int nl = 0; 52 volatile struct proc *p, *pp; 53 54 np = nprocs; 55 56 if (allproc.lh_first != NULL) 57 p = allproc.lh_first; 58 else 59 p = &proc0; 60 61 db_printf(" pid proc addr uid ppid pgrp flag stat wmesg wchan cmd\n"); 62 while (--np >= 0) { 63 /* 64 * XXX just take 20 for now... 65 */ 66 if (nl++ == 20) { 67 int c; 68 69 db_printf("--More--"); 70 c = cngetc(); 71 db_printf("\r"); 72 /* 73 * A whole screenfull or just one line? 74 */ 75 switch (c) { 76 case '\n': /* just one line */ 77 nl = 20; 78 break; 79 case ' ': 80 nl = 0; /* another screenfull */ 81 break; 82 default: /* exit */ 83 db_printf("\n"); 84 return; 85 } 86 } 87 if (p == NULL) { 88 printf("oops, ran out of processes early!\n"); 89 break; 90 } 91 pp = p->p_pptr; 92 if (pp == NULL) 93 pp = p; 94 95 db_printf("%5d %8p %8p %4d %5d %5d %06x %d", 96 p->p_pid, (volatile void *)p, (void *)p->p_addr, 97 p->p_cred ? p->p_cred->p_ruid : 0, pp->p_pid, 98 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, p->p_stat); 99 if (p->p_wchan) { 100 db_printf(" %6s %8p", p->p_wmesg, (void *)p->p_wchan); 101 } else { 102 db_printf(" "); 103 } 104 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 105 106 p = p->p_list.le_next; 107 if (p == NULL && np > 0) 108 p = zombproc.lh_first; 109 } 110 } 111