db_ps.c revision 116361
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 116361 2003-06-15 00:31:24Z davidxu $"); 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 int np; 59 int nl = 0; 60 volatile struct proc *p, *pp; 61 volatile struct thread *td; 62 char *state; 63 64 np = nprocs; 65 66 /* sx_slock(&allproc_lock); */ 67 if (!LIST_EMPTY(&allproc)) 68 p = LIST_FIRST(&allproc); 69 else 70 p = &proc0; 71 72 db_printf(" pid proc addr uid ppid pgrp flag stat wmesg wchan cmd\n"); 73 while (--np >= 0) { 74 /* 75 * XXX just take 20 for now... 76 */ 77 if (nl++ >= 20) { 78 int c; 79 80 db_printf("--More--"); 81 c = cngetc(); 82 db_printf("\r"); 83 /* 84 * A whole screenfull or just one line? 85 */ 86 switch (c) { 87 case '\n': /* just one line */ 88 nl = 20; 89 break; 90 case ' ': 91 nl = 0; /* another screenfull */ 92 break; 93 default: /* exit */ 94 db_printf("\n"); 95 return; 96 } 97 } 98 if (p == NULL) { 99 printf("oops, ran out of processes early!\n"); 100 break; 101 } 102 /* PROC_LOCK(p); */ 103 pp = p->p_pptr; 104 if (pp == NULL) 105 pp = p; 106 107 108 switch(p->p_state) { 109 case PRS_NORMAL: 110 if (P_SHOULDSTOP(p)) 111 state = "stop"; 112 else 113 state = ""; 114 break; 115 case PRS_NEW: 116 state = "new "; 117 break; 118 case PRS_ZOMBIE: 119 state = "zomb"; 120 break; 121 default: 122 state = "Unkn"; 123 break; 124 } 125 db_printf("%5d %8p %8p %4d %5d %5d %07x %s", 126 p->p_pid, (volatile void *)p, (void *)p->p_uarea, 127 p->p_ucred != NULL ? p->p_ucred->cr_ruid : 0, pp->p_pid, 128 p->p_pgrp != NULL ? p->p_pgrp->pg_id : 0, p->p_flag, 129 state); 130 if (p->p_flag & P_SA) 131 db_printf("(threaded) %s\n", p->p_comm); 132 FOREACH_THREAD_IN_PROC(p, td) { 133 dumpthread(p, td); 134 nl++; 135 } 136 /* PROC_UNLOCK(p); */ 137 138 p = LIST_NEXT(p, p_list); 139 if (p == NULL && np > 0) 140 p = LIST_FIRST(&zombproc); 141 } 142 /* sx_sunlock(&allproc_lock); */ 143} 144 145static void 146dumpthread(volatile struct proc *p, volatile struct thread *td) 147{ 148 if (p->p_flag & P_SA) 149 db_printf( " thread %p ksegrp %p ", td, td->td_ksegrp); 150 if (TD_ON_SLEEPQ(td)) { 151 if (td->td_flags & TDF_CVWAITQ) 152 if (TD_IS_SLEEPING(td)) 153 db_printf("[CV]"); 154 else 155 db_printf("[CVQ"); 156 else 157 if (TD_IS_SLEEPING(td)) 158 db_printf("[SLP]"); 159 else 160 db_printf("[SLPQ"); 161 db_printf("%s %p]", td->td_wmesg, 162 (void *)td->td_wchan); 163 } 164 switch (td->td_state) { 165 case TDS_INHIBITED: 166 if (TD_ON_LOCK(td)) { 167 db_printf("[LOCK %6s %8p]", 168 td->td_lockname, 169 (void *)td->td_blocked); 170 } 171#if 0 /* covered above */ 172 if (TD_IS_SLEEPING(td)) { 173 db_printf("[SLP]"); 174 } 175#endif 176 if (TD_IS_SWAPPED(td)) { 177 db_printf("[SWAP]"); 178 } 179 if (TD_IS_SUSPENDED(td)) { 180 db_printf("[SUSP]"); 181 } 182 if (TD_AWAITING_INTR(td)) { 183 db_printf("[IWAIT]"); 184 } 185 break; 186 case TDS_CAN_RUN: 187 db_printf("[Can run]"); 188 break; 189 case TDS_RUNQ: 190 db_printf("[RUNQ]"); 191 break; 192 case TDS_RUNNING: 193 db_printf("[CPU %d]", td->td_oncpu); 194 break; 195 case TDS_INACTIVE: 196 db_printf("[INACTIVE]"); 197 break; 198 default: 199 db_printf("[UNK: %#x]", td->td_state); 200 } 201 if (p->p_flag & P_SA) { 202 if (td->td_kse) 203 db_printf("[kse %p]", td->td_kse); 204 db_printf("\n"); 205 } else 206 db_printf(" %s\n", p->p_comm); 207} 208 209 210#define INKERNEL(va) (((vm_offset_t)(va)) >= USRSTACK) 211void 212db_show_one_thread(db_expr_t addr, boolean_t have_addr, 213 db_expr_t count, char *modif) 214{ 215 struct proc *p; 216 struct thread *td; 217 218 if (!have_addr) 219 td = curthread; 220 else if (!INKERNEL(addr)) { 221 printf("bad thread address"); 222 return; 223 } else 224 td = (struct thread *)addr; 225 /* quick sanity check */ 226 if ((p = td->td_proc) != td->td_ksegrp->kg_proc) 227 return; 228 printf("Proc %p ",p); 229 dumpthread(p, td); 230#ifdef __i386__ 231 db_stack_thread((db_expr_t)td, 1, count, modif); 232#endif 233} 234