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 * $FreeBSD$ 34 */ 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/proc.h> 40 #include <sys/cons.h> 41 42 #include <ddb/ddb.h> 43 44 void 45 db_ps(dummy1, dummy2, dummy3, dummy4) 46 db_expr_t dummy1; 47 boolean_t dummy2; 48 db_expr_t dummy3; 49 char * dummy4; 50 { 51 int np; 52 int nl = 0; 53 volatile struct proc *p, *pp; 54 volatile struct thread *td; 55 char *state; 56 57 np = nprocs; 58 59 /* sx_slock(&allproc_lock); */ 60 if (!LIST_EMPTY(&allproc)) 61 p = LIST_FIRST(&allproc); 62 else 63 p = &proc0; 64 65 db_printf(" pid proc addr uid ppid pgrp flag stat wmesg wchan cmd\n"); 66 while (--np >= 0) { 67 /* 68 * XXX just take 20 for now... 69 */ 70 if (nl++ == 20) { 71 int c; 72 73 db_printf("--More--"); 74 c = cngetc(); 75 db_printf("\r"); 76 /* 77 * A whole screenfull or just one line? 78 */ 79 switch (c) { 80 case '\n': /* just one line */ 81 nl = 20; 82 break; 83 case ' ': 84 nl = 0; /* another screenfull */ 85 break; 86 default: /* exit */ 87 db_printf("\n"); 88 return; 89 } 90 } 91 if (p == NULL) { 92 printf("oops, ran out of processes early!\n"); 93 break; 94 } 95 /* PROC_LOCK(p); */ 96 pp = p->p_pptr; 97 if (pp == NULL) 98 pp = p; 99 100 101 switch(p->p_state) { 102 case PRS_NORMAL: 103 if (P_SHOULDSTOP(p)) 104 state = "stop"; 105 else 106 state = "norm"; 107 break; 108 case PRS_NEW: 109 state = "new "; 110 break; 111 case PRS_WAIT: 112 state = "wait"; 113 break; 114 case PRS_ZOMBIE: 115 state = "zomp"; 116 break; 117 default: 118 state = "Unkn"; 119 break; 120 } 121 db_printf("%5d %8p %8p %4d %5d %5d %07x %-4s", 122 p->p_pid, (volatile void *)p, (void *)p->p_uarea, 123 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 124 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, state); 125 if (p->p_flag & P_KSES) { 126 db_printf("(threaded) %s\n", p->p_comm); 127 FOREACH_THREAD_IN_PROC(p, td) { 128 db_printf( ". . . . . . . " 129 ". thread %p . . . ", td); 130 if (td->td_wchan) { 131 db_printf("SLP %6s %8p\n", td->td_wmesg, 132 (void *)td->td_wchan); 133 } else if (td->td_state == TDS_MTX) { 134 db_printf("MTX %6s %8p\n", td->td_mtxname, 135 (void *)td->td_blocked); 136 } else { 137 db_printf("--not blocked--\n"); 138 } 139 } 140 } else { 141 td = FIRST_THREAD_IN_PROC(p); 142 if (td->td_wchan) { 143 db_printf(" %-6s %8p", td->td_wmesg, 144 (void *)td->td_wchan); 145 } else if (td->td_state == TDS_MTX) { 146 db_printf(" %6s %8p", td->td_mtxname, 147 (void *)td->td_blocked); 148 } else { 149 db_printf(" "); 150 } 151 db_printf(" %s\n", p->p_comm); 152 } 153 /* PROC_UNLOCK(p); */ 154 155 p = LIST_NEXT(p, p_list); 156 if (p == NULL && np > 0) 157 p = LIST_FIRST(&zombproc); 158 } 159 /* sx_sunlock(&allproc_lock); */ 160 } 161