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("$FreeBSD$"); 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 49 static void dumpthread(volatile struct proc *p, volatile struct thread *td); 50 51 void 52 db_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 } 122 123 static void 124 dumpthread(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 db_printf("[SLPQ %s %p]", td->td_wmesg, (void *)td->td_wchan); 131 switch (td->td_state) { 132 case TDS_INHIBITED: 133 if (TD_ON_LOCK(td)) { 134 db_printf("[LOCK %6s %8p]", 135 td->td_lockname, 136 (void *)td->td_blocked); 137 } 138 if (TD_IS_SLEEPING(td)) { 139 db_printf("[SLP]"); 140 } 141 if (TD_IS_SWAPPED(td)) { 142 db_printf("[SWAP]"); 143 } 144 if (TD_IS_SUSPENDED(td)) { 145 db_printf("[SUSP]"); 146 } 147 if (TD_AWAITING_INTR(td)) { 148 db_printf("[IWAIT]"); 149 } 150 break; 151 case TDS_CAN_RUN: 152 db_printf("[Can run]"); 153 break; 154 case TDS_RUNQ: 155 db_printf("[RUNQ]"); 156 break; 157 case TDS_RUNNING: 158 db_printf("[CPU %d]", td->td_oncpu); 159 break; 160 case TDS_INACTIVE: 161 db_printf("[INACTIVE]"); 162 break; 163 default: 164 db_printf("[UNK: %#x]", td->td_state); 165 } 166 if (p->p_flag & P_SA) { 167 if (td->td_kse) 168 db_printf("[kse %p]", td->td_kse); 169 db_printf("\n"); 170 } else 171 db_printf(" %s\n", p->p_comm); 172 } 173 174 175 #define INKERNEL(va) (((vm_offset_t)(va)) >= USRSTACK) 176 void 177 db_show_one_thread(db_expr_t addr, boolean_t have_addr, 178 db_expr_t count, char *modif) 179 { 180 struct proc *p; 181 struct thread *td; 182 183 if (!have_addr) 184 td = curthread; 185 else if (!INKERNEL(addr)) { 186 printf("bad thread address"); 187 return; 188 } else 189 td = (struct thread *)addr; 190 /* quick sanity check */ 191 if ((p = td->td_proc) != td->td_ksegrp->kg_proc) 192 return; 193 printf("Proc %p ",p); 194 dumpthread(p, td); 195 #ifdef __i386__ 196 db_stack_thread((db_expr_t)td, 1, count, modif); 197 #endif 198 } 199