db_ps.c revision 119594
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 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/ddb/db_ps.c 119594 2003-08-30 19:06:57Z phk $"); 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/proc.h> 42#include <sys/cons.h> 43#include <vm/vm.h> 44#include <vm/vm_param.h> 45#include <vm/pmap.h> 46 47#include <ddb/ddb.h> 48 49static void dumpthread(volatile struct proc *p, volatile struct thread *td); 50 51void 52db_ps(dummy1, dummy2, dummy3, dummy4) 53 db_expr_t dummy1; 54 boolean_t dummy2; 55 db_expr_t dummy3; 56 char * dummy4; 57{ 58 volatile struct proc *p, *pp; 59 volatile struct thread *td; 60 char *state; 61 int np, quit; 62 63 np = nprocs; 64 quit = 0; 65 66 /* sx_slock(&allproc_lock); */ 67 if (!LIST_EMPTY(&allproc)) 68 p = LIST_FIRST(&allproc); 69 else 70 p = &proc0; 71 72 db_setup_paging(db_simple_pager, &quit, DB_LINES_PER_PAGE); 73 db_printf(" pid proc uarea uid ppid pgrp flag stat wmesg wchan cmd\n"); 74 while (--np >= 0 && !quit) { 75 if (p == NULL) { 76 printf("oops, ran out of processes early!\n"); 77 break; 78 } 79 /* PROC_LOCK(p); */ 80 pp = p->p_pptr; 81 if (pp == NULL) 82 pp = p; 83 84 85 switch(p->p_state) { 86 case PRS_NORMAL: 87 if (P_SHOULDSTOP(p)) 88 state = "stop"; 89 else 90 state = ""; 91 break; 92 case PRS_NEW: 93 state = "new "; 94 break; 95 case PRS_ZOMBIE: 96 state = "zomb"; 97 break; 98 default: 99 state = "Unkn"; 100 break; 101 } 102 db_printf("%5d %8p %8p %4d %5d %5d %07x %s", 103 p->p_pid, (volatile void *)p, (void *)p->p_uarea, 104 p->p_ucred != NULL ? p->p_ucred->cr_ruid : 0, pp->p_pid, 105 p->p_pgrp != NULL ? p->p_pgrp->pg_id : 0, p->p_flag, 106 state); 107 if (p->p_flag & P_SA) 108 db_printf("(threaded) %s\n", p->p_comm); 109 FOREACH_THREAD_IN_PROC(p, td) { 110 dumpthread(p, td); 111 if (quit) 112 break; 113 } 114 /* PROC_UNLOCK(p); */ 115 116 p = LIST_NEXT(p, p_list); 117 if (p == NULL && np > 0) 118 p = LIST_FIRST(&zombproc); 119 } 120 /* sx_sunlock(&allproc_lock); */ 121} 122 123static void 124dumpthread(volatile struct proc *p, volatile struct thread *td) 125{ 126 127 if (p->p_flag & P_SA) 128 db_printf( " thread %p ksegrp %p ", td, td->td_ksegrp); 129 if (TD_ON_SLEEPQ(td)) { 130 if (td->td_flags & TDF_CVWAITQ) 131 if (TD_IS_SLEEPING(td)) 132 db_printf("[CV]"); 133 else 134 db_printf("[CVQ"); 135 else 136 if (TD_IS_SLEEPING(td)) 137 db_printf("[SLP]"); 138 else 139 db_printf("[SLPQ"); 140 db_printf("%s %p]", td->td_wmesg, 141 (void *)td->td_wchan); 142 } 143 switch (td->td_state) { 144 case TDS_INHIBITED: 145 if (TD_ON_LOCK(td)) { 146 db_printf("[LOCK %6s %8p]", 147 td->td_lockname, 148 (void *)td->td_blocked); 149 } 150#if 0 /* covered above */ 151 if (TD_IS_SLEEPING(td)) { 152 db_printf("[SLP]"); 153 } 154#endif 155 if (TD_IS_SWAPPED(td)) { 156 db_printf("[SWAP]"); 157 } 158 if (TD_IS_SUSPENDED(td)) { 159 db_printf("[SUSP]"); 160 } 161 if (TD_AWAITING_INTR(td)) { 162 db_printf("[IWAIT]"); 163 } 164 break; 165 case TDS_CAN_RUN: 166 db_printf("[Can run]"); 167 break; 168 case TDS_RUNQ: 169 db_printf("[RUNQ]"); 170 break; 171 case TDS_RUNNING: 172 db_printf("[CPU %d]", td->td_oncpu); 173 break; 174 case TDS_INACTIVE: 175 db_printf("[INACTIVE]"); 176 break; 177 default: 178 db_printf("[UNK: %#x]", td->td_state); 179 } 180 if (p->p_flag & P_SA) { 181 if (td->td_kse) 182 db_printf("[kse %p]", td->td_kse); 183 db_printf("\n"); 184 } else 185 db_printf(" %s\n", p->p_comm); 186} 187 188 189#define INKERNEL(va) (((vm_offset_t)(va)) >= USRSTACK) 190void 191db_show_one_thread(db_expr_t addr, boolean_t have_addr, 192 db_expr_t count, char *modif) 193{ 194 struct proc *p; 195 struct thread *td; 196 197 if (!have_addr) 198 td = curthread; 199 else if (!INKERNEL(addr)) { 200 printf("bad thread address"); 201 return; 202 } else 203 td = (struct thread *)addr; 204 /* quick sanity check */ 205 if ((p = td->td_proc) != td->td_ksegrp->kg_proc) 206 return; 207 printf("Proc %p ",p); 208 dumpthread(p, td); 209#ifdef __i386__ 210 db_stack_thread((db_expr_t)td, 1, count, modif); 211#endif 212} 213