1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* from SVr4.0 1.74 */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include <sys/types.h> 32*0Sstevel@tonic-gate #include <sys/param.h> 33*0Sstevel@tonic-gate #include <sys/sysmacros.h> 34*0Sstevel@tonic-gate #include <sys/systm.h> 35*0Sstevel@tonic-gate #include <sys/cred.h> 36*0Sstevel@tonic-gate #include <sys/user.h> 37*0Sstevel@tonic-gate #include <sys/errno.h> 38*0Sstevel@tonic-gate #include <sys/proc.h> 39*0Sstevel@tonic-gate #include <sys/ucontext.h> 40*0Sstevel@tonic-gate #include <sys/procfs.h> 41*0Sstevel@tonic-gate #include <sys/vnode.h> 42*0Sstevel@tonic-gate #include <sys/acct.h> 43*0Sstevel@tonic-gate #include <sys/var.h> 44*0Sstevel@tonic-gate #include <sys/cmn_err.h> 45*0Sstevel@tonic-gate #include <sys/debug.h> 46*0Sstevel@tonic-gate #include <sys/wait.h> 47*0Sstevel@tonic-gate #include <sys/siginfo.h> 48*0Sstevel@tonic-gate #include <sys/procset.h> 49*0Sstevel@tonic-gate #include <sys/class.h> 50*0Sstevel@tonic-gate #include <sys/file.h> 51*0Sstevel@tonic-gate #include <sys/session.h> 52*0Sstevel@tonic-gate #include <sys/kmem.h> 53*0Sstevel@tonic-gate #include <sys/vtrace.h> 54*0Sstevel@tonic-gate #include <sys/prsystm.h> 55*0Sstevel@tonic-gate #include <sys/ipc.h> 56*0Sstevel@tonic-gate #include <sys/sem_impl.h> 57*0Sstevel@tonic-gate #include <c2/audit.h> 58*0Sstevel@tonic-gate #include <sys/aio_impl.h> 59*0Sstevel@tonic-gate #include <vm/as.h> 60*0Sstevel@tonic-gate #include <sys/poll.h> 61*0Sstevel@tonic-gate #include <sys/door.h> 62*0Sstevel@tonic-gate #include <sys/lwpchan_impl.h> 63*0Sstevel@tonic-gate #include <sys/utrap.h> 64*0Sstevel@tonic-gate #include <sys/task.h> 65*0Sstevel@tonic-gate #include <sys/exacct.h> 66*0Sstevel@tonic-gate #include <sys/cyclic.h> 67*0Sstevel@tonic-gate #include <sys/schedctl.h> 68*0Sstevel@tonic-gate #include <sys/rctl.h> 69*0Sstevel@tonic-gate #include <sys/contract_impl.h> 70*0Sstevel@tonic-gate #include <sys/contract/process_impl.h> 71*0Sstevel@tonic-gate #include <sys/list.h> 72*0Sstevel@tonic-gate #include <sys/dtrace.h> 73*0Sstevel@tonic-gate #include <sys/pool.h> 74*0Sstevel@tonic-gate #include <sys/sdt.h> 75*0Sstevel@tonic-gate #include <sys/corectl.h> 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate #if defined(__x86) 78*0Sstevel@tonic-gate extern void ldt_free(proc_t *pp); 79*0Sstevel@tonic-gate #endif 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate /* 82*0Sstevel@tonic-gate * convert code/data pair into old style wait status 83*0Sstevel@tonic-gate */ 84*0Sstevel@tonic-gate int 85*0Sstevel@tonic-gate wstat(int code, int data) 86*0Sstevel@tonic-gate { 87*0Sstevel@tonic-gate int stat = (data & 0377); 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate switch (code) { 90*0Sstevel@tonic-gate case CLD_EXITED: 91*0Sstevel@tonic-gate stat <<= 8; 92*0Sstevel@tonic-gate break; 93*0Sstevel@tonic-gate case CLD_DUMPED: 94*0Sstevel@tonic-gate stat |= WCOREFLG; 95*0Sstevel@tonic-gate break; 96*0Sstevel@tonic-gate case CLD_KILLED: 97*0Sstevel@tonic-gate break; 98*0Sstevel@tonic-gate case CLD_TRAPPED: 99*0Sstevel@tonic-gate case CLD_STOPPED: 100*0Sstevel@tonic-gate stat <<= 8; 101*0Sstevel@tonic-gate stat |= WSTOPFLG; 102*0Sstevel@tonic-gate break; 103*0Sstevel@tonic-gate case CLD_CONTINUED: 104*0Sstevel@tonic-gate stat = WCONTFLG; 105*0Sstevel@tonic-gate break; 106*0Sstevel@tonic-gate default: 107*0Sstevel@tonic-gate cmn_err(CE_PANIC, "wstat: bad code"); 108*0Sstevel@tonic-gate /* NOTREACHED */ 109*0Sstevel@tonic-gate } 110*0Sstevel@tonic-gate return (stat); 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate static char * 114*0Sstevel@tonic-gate exit_reason(char *buf, size_t bufsz, int what, int why) 115*0Sstevel@tonic-gate { 116*0Sstevel@tonic-gate switch (why) { 117*0Sstevel@tonic-gate case CLD_EXITED: 118*0Sstevel@tonic-gate (void) snprintf(buf, bufsz, "exited with status %d", what); 119*0Sstevel@tonic-gate break; 120*0Sstevel@tonic-gate case CLD_KILLED: 121*0Sstevel@tonic-gate (void) snprintf(buf, bufsz, "exited on fatal signal %d", what); 122*0Sstevel@tonic-gate break; 123*0Sstevel@tonic-gate case CLD_DUMPED: 124*0Sstevel@tonic-gate (void) snprintf(buf, bufsz, "core dumped on signal %d", what); 125*0Sstevel@tonic-gate break; 126*0Sstevel@tonic-gate default: 127*0Sstevel@tonic-gate (void) snprintf(buf, bufsz, "encountered unknown error " 128*0Sstevel@tonic-gate "(%d, %d)", why, what); 129*0Sstevel@tonic-gate break; 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate return (buf); 133*0Sstevel@tonic-gate } 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate /* 136*0Sstevel@tonic-gate * exit system call: pass back caller's arg. 137*0Sstevel@tonic-gate */ 138*0Sstevel@tonic-gate void 139*0Sstevel@tonic-gate rexit(int rval) 140*0Sstevel@tonic-gate { 141*0Sstevel@tonic-gate exit(CLD_EXITED, rval); 142*0Sstevel@tonic-gate } 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate /* 145*0Sstevel@tonic-gate * Called by proc_exit() when a zone's init exits, presumably because 146*0Sstevel@tonic-gate * it failed. As long as the given zone is still in the "running" 147*0Sstevel@tonic-gate * state, we will re-exec() init, but first we need to reset things 148*0Sstevel@tonic-gate * which are usually inherited across exec() but will break init's 149*0Sstevel@tonic-gate * assumption that it is being exec()'d from a virgin process. Most 150*0Sstevel@tonic-gate * importantly this includes closing all file descriptors (exec only 151*0Sstevel@tonic-gate * closes those marked close-on-exec) and resetting signals (exec only 152*0Sstevel@tonic-gate * resets handled signals, and we need to clear any signals which 153*0Sstevel@tonic-gate * killed init). Anything else that exec(2) says would be inherited, 154*0Sstevel@tonic-gate * but would affect the execution of init, needs to be reset. 155*0Sstevel@tonic-gate */ 156*0Sstevel@tonic-gate static int 157*0Sstevel@tonic-gate restart_init(int what, int why) 158*0Sstevel@tonic-gate { 159*0Sstevel@tonic-gate kthread_t *t = curthread; 160*0Sstevel@tonic-gate klwp_t *lwp = ttolwp(t); 161*0Sstevel@tonic-gate proc_t *p = ttoproc(t); 162*0Sstevel@tonic-gate user_t *up = PTOU(p); 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate vnode_t *oldcd, *oldrd; 165*0Sstevel@tonic-gate sess_t *sp; 166*0Sstevel@tonic-gate int i, err; 167*0Sstevel@tonic-gate char reason_buf[64]; 168*0Sstevel@tonic-gate const char *ipath; 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate /* 171*0Sstevel@tonic-gate * Let zone admin (and global zone admin if this is for a non-global 172*0Sstevel@tonic-gate * zone) know that init has failed and will be restarted. 173*0Sstevel@tonic-gate */ 174*0Sstevel@tonic-gate zcmn_err(p->p_zone->zone_id, CE_WARN, 175*0Sstevel@tonic-gate "init(1M) %s: restarting automatically", 176*0Sstevel@tonic-gate exit_reason(reason_buf, sizeof (reason_buf), what, why)); 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate if (!INGLOBALZONE(p)) { 179*0Sstevel@tonic-gate cmn_err(CE_WARN, "init(1M) for zone %s (pid %d) %s: " 180*0Sstevel@tonic-gate "restarting automatically", 181*0Sstevel@tonic-gate p->p_zone->zone_name, p->p_pid, reason_buf); 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate /* 185*0Sstevel@tonic-gate * Remove any fpollinfo_t's for this (last) thread from our file 186*0Sstevel@tonic-gate * descriptors so closeall() can ASSERT() that they're all gone. 187*0Sstevel@tonic-gate * Then close all open file descriptors in the process. 188*0Sstevel@tonic-gate */ 189*0Sstevel@tonic-gate pollcleanup(); 190*0Sstevel@tonic-gate closeall(P_FINFO(p)); 191*0Sstevel@tonic-gate 192*0Sstevel@tonic-gate /* 193*0Sstevel@tonic-gate * Grab p_lock and begin clearing miscellaneous global process 194*0Sstevel@tonic-gate * state that needs to be reset before we exec the new init(1M). 195*0Sstevel@tonic-gate */ 196*0Sstevel@tonic-gate 197*0Sstevel@tonic-gate mutex_enter(&p->p_lock); 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate p->p_flag &= ~(SKILLED | SEXITLWPS | SEXTKILLED | SCOREDUMP | SDOCORE); 200*0Sstevel@tonic-gate up->u_cmask = CMASK; 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate sigemptyset(&t->t_hold); 203*0Sstevel@tonic-gate sigemptyset(&t->t_sig); 204*0Sstevel@tonic-gate sigemptyset(&t->t_extsig); 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate sigemptyset(&p->p_sig); 207*0Sstevel@tonic-gate sigemptyset(&p->p_extsig); 208*0Sstevel@tonic-gate 209*0Sstevel@tonic-gate sigdelq(p, t, 0); 210*0Sstevel@tonic-gate sigdelq(p, NULL, 0); 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate if (p->p_killsqp) { 213*0Sstevel@tonic-gate siginfofree(p->p_killsqp); 214*0Sstevel@tonic-gate p->p_killsqp = NULL; 215*0Sstevel@tonic-gate } 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate /* 218*0Sstevel@tonic-gate * Reset any signals that are ignored back to the default disposition. 219*0Sstevel@tonic-gate * Other u_signal members will be cleared when exec calls sigdefault(). 220*0Sstevel@tonic-gate */ 221*0Sstevel@tonic-gate for (i = 1; i < NSIG; i++) { 222*0Sstevel@tonic-gate if (up->u_signal[i - 1] == SIG_IGN) { 223*0Sstevel@tonic-gate up->u_signal[i - 1] = SIG_DFL; 224*0Sstevel@tonic-gate sigemptyset(&up->u_sigmask[i - 1]); 225*0Sstevel@tonic-gate } 226*0Sstevel@tonic-gate } 227*0Sstevel@tonic-gate 228*0Sstevel@tonic-gate /* 229*0Sstevel@tonic-gate * Clear the current signal, any signal info associated with it, and 230*0Sstevel@tonic-gate * any signal information from contracts and/or contract templates. 231*0Sstevel@tonic-gate */ 232*0Sstevel@tonic-gate lwp->lwp_cursig = 0; 233*0Sstevel@tonic-gate lwp->lwp_extsig = 0; 234*0Sstevel@tonic-gate if (lwp->lwp_curinfo != NULL) { 235*0Sstevel@tonic-gate siginfofree(lwp->lwp_curinfo); 236*0Sstevel@tonic-gate lwp->lwp_curinfo = NULL; 237*0Sstevel@tonic-gate } 238*0Sstevel@tonic-gate lwp_ctmpl_clear(lwp); 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate /* 241*0Sstevel@tonic-gate * Reset both the process root directory and the current working 242*0Sstevel@tonic-gate * directory to the root of the zone just as we do during boot. 243*0Sstevel@tonic-gate */ 244*0Sstevel@tonic-gate VN_HOLD(p->p_zone->zone_rootvp); 245*0Sstevel@tonic-gate oldrd = up->u_rdir; 246*0Sstevel@tonic-gate up->u_rdir = p->p_zone->zone_rootvp; 247*0Sstevel@tonic-gate 248*0Sstevel@tonic-gate VN_HOLD(p->p_zone->zone_rootvp); 249*0Sstevel@tonic-gate oldcd = up->u_cdir; 250*0Sstevel@tonic-gate up->u_cdir = p->p_zone->zone_rootvp; 251*0Sstevel@tonic-gate 252*0Sstevel@tonic-gate if (up->u_cwd != NULL) { 253*0Sstevel@tonic-gate refstr_rele(up->u_cwd); 254*0Sstevel@tonic-gate up->u_cwd = NULL; 255*0Sstevel@tonic-gate } 256*0Sstevel@tonic-gate 257*0Sstevel@tonic-gate mutex_exit(&p->p_lock); 258*0Sstevel@tonic-gate 259*0Sstevel@tonic-gate if (oldrd != NULL) 260*0Sstevel@tonic-gate VN_RELE(oldrd); 261*0Sstevel@tonic-gate if (oldcd != NULL) 262*0Sstevel@tonic-gate VN_RELE(oldcd); 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate /* 265*0Sstevel@tonic-gate * Free the controlling tty. 266*0Sstevel@tonic-gate */ 267*0Sstevel@tonic-gate mutex_enter(&pidlock); 268*0Sstevel@tonic-gate sp = p->p_sessp; 269*0Sstevel@tonic-gate if (sp->s_sidp == p->p_pidp && sp->s_vp != NULL) { 270*0Sstevel@tonic-gate mutex_exit(&pidlock); 271*0Sstevel@tonic-gate freectty(sp); 272*0Sstevel@tonic-gate } else { 273*0Sstevel@tonic-gate mutex_exit(&pidlock); 274*0Sstevel@tonic-gate } 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate /* 277*0Sstevel@tonic-gate * Now exec() the new init(1M) on top of the current process. If we 278*0Sstevel@tonic-gate * succeed, the caller will treat this like a successful system call. 279*0Sstevel@tonic-gate * If we fail, we issue messages and the caller will proceed with exit. 280*0Sstevel@tonic-gate */ 281*0Sstevel@tonic-gate ipath = INGLOBALZONE(p) ? initname : zone_initname; 282*0Sstevel@tonic-gate err = exec_init(ipath, 0, NULL); 283*0Sstevel@tonic-gate 284*0Sstevel@tonic-gate if (err == 0) 285*0Sstevel@tonic-gate return (0); 286*0Sstevel@tonic-gate 287*0Sstevel@tonic-gate zcmn_err(p->p_zone->zone_id, CE_WARN, 288*0Sstevel@tonic-gate "failed to restart init(1M) (err=%d): system reboot required", err); 289*0Sstevel@tonic-gate 290*0Sstevel@tonic-gate if (!INGLOBALZONE(p)) { 291*0Sstevel@tonic-gate cmn_err(CE_WARN, "failed to restart init(1M) for zone %s " 292*0Sstevel@tonic-gate "(pid %d, err=%d): zoneadm(1M) boot required", 293*0Sstevel@tonic-gate p->p_zone->zone_name, p->p_pid, err); 294*0Sstevel@tonic-gate } 295*0Sstevel@tonic-gate 296*0Sstevel@tonic-gate return (-1); 297*0Sstevel@tonic-gate } 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate /* 300*0Sstevel@tonic-gate * Release resources. 301*0Sstevel@tonic-gate * Enter zombie state. 302*0Sstevel@tonic-gate * Wake up parent and init processes, 303*0Sstevel@tonic-gate * and dispose of children. 304*0Sstevel@tonic-gate */ 305*0Sstevel@tonic-gate void 306*0Sstevel@tonic-gate exit(int why, int what) 307*0Sstevel@tonic-gate { 308*0Sstevel@tonic-gate /* 309*0Sstevel@tonic-gate * If proc_exit() fails, then some other lwp in the process 310*0Sstevel@tonic-gate * got there first. We just have to call lwp_exit() to allow 311*0Sstevel@tonic-gate * the other lwp to finish exiting the process. Otherwise we're 312*0Sstevel@tonic-gate * restarting init, and should return. 313*0Sstevel@tonic-gate */ 314*0Sstevel@tonic-gate if (proc_exit(why, what) != 0) { 315*0Sstevel@tonic-gate mutex_enter(&curproc->p_lock); 316*0Sstevel@tonic-gate ASSERT(curproc->p_flag & SEXITLWPS); 317*0Sstevel@tonic-gate lwp_exit(); 318*0Sstevel@tonic-gate /* NOTREACHED */ 319*0Sstevel@tonic-gate } 320*0Sstevel@tonic-gate } 321*0Sstevel@tonic-gate 322*0Sstevel@tonic-gate /* 323*0Sstevel@tonic-gate * Return value: 324*0Sstevel@tonic-gate * 1 - exitlwps() failed, call (or continue) lwp_exit() 325*0Sstevel@tonic-gate * 0 - restarting init. Return through system call path 326*0Sstevel@tonic-gate */ 327*0Sstevel@tonic-gate int 328*0Sstevel@tonic-gate proc_exit(int why, int what) 329*0Sstevel@tonic-gate { 330*0Sstevel@tonic-gate kthread_t *t = curthread; 331*0Sstevel@tonic-gate klwp_t *lwp = ttolwp(t); 332*0Sstevel@tonic-gate proc_t *p = ttoproc(t); 333*0Sstevel@tonic-gate zone_t *z = p->p_zone; 334*0Sstevel@tonic-gate timeout_id_t tmp_id; 335*0Sstevel@tonic-gate int rv; 336*0Sstevel@tonic-gate proc_t *q; 337*0Sstevel@tonic-gate sess_t *sp; 338*0Sstevel@tonic-gate task_t *tk; 339*0Sstevel@tonic-gate vnode_t *exec_vp, *execdir_vp, *cdir, *rdir; 340*0Sstevel@tonic-gate sigqueue_t *sqp; 341*0Sstevel@tonic-gate lwpdir_t *lwpdir; 342*0Sstevel@tonic-gate uint_t lwpdir_sz; 343*0Sstevel@tonic-gate lwpdir_t **tidhash; 344*0Sstevel@tonic-gate uint_t tidhash_sz; 345*0Sstevel@tonic-gate refstr_t *cwd; 346*0Sstevel@tonic-gate hrtime_t hrutime, hrstime; 347*0Sstevel@tonic-gate 348*0Sstevel@tonic-gate /* 349*0Sstevel@tonic-gate * Stop and discard the process's lwps except for the current one, 350*0Sstevel@tonic-gate * unless some other lwp beat us to it. If exitlwps() fails then 351*0Sstevel@tonic-gate * return and the calling lwp will call (or continue in) lwp_exit(). 352*0Sstevel@tonic-gate */ 353*0Sstevel@tonic-gate if (exitlwps(0) != 0) 354*0Sstevel@tonic-gate return (1); 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate DTRACE_PROC(lwp__exit); 357*0Sstevel@tonic-gate DTRACE_PROC1(exit, int, why); 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate /* 360*0Sstevel@tonic-gate * Don't let init exit unless zone_icode() failed its exec, or 361*0Sstevel@tonic-gate * we are shutting down the zone or the machine. 362*0Sstevel@tonic-gate * 363*0Sstevel@tonic-gate * Since we are single threaded, we don't need to lock the 364*0Sstevel@tonic-gate * following accesses to zone_proc_initpid. 365*0Sstevel@tonic-gate */ 366*0Sstevel@tonic-gate if (p->p_pid == z->zone_proc_initpid) { 367*0Sstevel@tonic-gate if (z->zone_boot_err == 0 && 368*0Sstevel@tonic-gate zone_status_get(z) < ZONE_IS_SHUTTING_DOWN && 369*0Sstevel@tonic-gate zone_status_get(global_zone) < ZONE_IS_SHUTTING_DOWN && 370*0Sstevel@tonic-gate restart_init(what, why) == 0) 371*0Sstevel@tonic-gate return (0); 372*0Sstevel@tonic-gate /* 373*0Sstevel@tonic-gate * Since we didn't or couldn't restart init, we clear 374*0Sstevel@tonic-gate * the zone's init state and proceed with exit 375*0Sstevel@tonic-gate * processing. 376*0Sstevel@tonic-gate */ 377*0Sstevel@tonic-gate z->zone_proc_initpid = -1; 378*0Sstevel@tonic-gate } 379*0Sstevel@tonic-gate 380*0Sstevel@tonic-gate /* 381*0Sstevel@tonic-gate * Allocate a sigqueue now, before we grab locks. 382*0Sstevel@tonic-gate * It will be given to sigcld(), below. 383*0Sstevel@tonic-gate */ 384*0Sstevel@tonic-gate sqp = kmem_zalloc(sizeof (sigqueue_t), KM_SLEEP); 385*0Sstevel@tonic-gate 386*0Sstevel@tonic-gate /* 387*0Sstevel@tonic-gate * revoke any doors created by the process. 388*0Sstevel@tonic-gate */ 389*0Sstevel@tonic-gate if (p->p_door_list) 390*0Sstevel@tonic-gate door_exit(); 391*0Sstevel@tonic-gate 392*0Sstevel@tonic-gate /* 393*0Sstevel@tonic-gate * Release schedctl data structures. 394*0Sstevel@tonic-gate */ 395*0Sstevel@tonic-gate if (p->p_pagep) 396*0Sstevel@tonic-gate schedctl_proc_cleanup(); 397*0Sstevel@tonic-gate 398*0Sstevel@tonic-gate /* 399*0Sstevel@tonic-gate * make sure all pending kaio has completed. 400*0Sstevel@tonic-gate */ 401*0Sstevel@tonic-gate if (p->p_aio) 402*0Sstevel@tonic-gate aio_cleanup_exit(); 403*0Sstevel@tonic-gate 404*0Sstevel@tonic-gate /* 405*0Sstevel@tonic-gate * discard the lwpchan cache. 406*0Sstevel@tonic-gate */ 407*0Sstevel@tonic-gate if (p->p_lcp != NULL) 408*0Sstevel@tonic-gate lwpchan_destroy_cache(0); 409*0Sstevel@tonic-gate 410*0Sstevel@tonic-gate /* 411*0Sstevel@tonic-gate * Clean up any DTrace helper actions or probes for the process. 412*0Sstevel@tonic-gate */ 413*0Sstevel@tonic-gate if (p->p_dtrace_helpers != NULL) { 414*0Sstevel@tonic-gate ASSERT(dtrace_helpers_cleanup != NULL); 415*0Sstevel@tonic-gate (*dtrace_helpers_cleanup)(); 416*0Sstevel@tonic-gate } 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate /* untimeout the realtime timers */ 419*0Sstevel@tonic-gate if (p->p_itimer != NULL) 420*0Sstevel@tonic-gate timer_exit(); 421*0Sstevel@tonic-gate 422*0Sstevel@tonic-gate if ((tmp_id = p->p_alarmid) != 0) { 423*0Sstevel@tonic-gate p->p_alarmid = 0; 424*0Sstevel@tonic-gate (void) untimeout(tmp_id); 425*0Sstevel@tonic-gate } 426*0Sstevel@tonic-gate 427*0Sstevel@tonic-gate /* 428*0Sstevel@tonic-gate * Remove any fpollinfo_t's for this (last) thread from our file 429*0Sstevel@tonic-gate * descriptors so closeall() can ASSERT() that they're all gone. 430*0Sstevel@tonic-gate */ 431*0Sstevel@tonic-gate pollcleanup(); 432*0Sstevel@tonic-gate 433*0Sstevel@tonic-gate if (p->p_rprof_cyclic != CYCLIC_NONE) { 434*0Sstevel@tonic-gate mutex_enter(&cpu_lock); 435*0Sstevel@tonic-gate cyclic_remove(p->p_rprof_cyclic); 436*0Sstevel@tonic-gate mutex_exit(&cpu_lock); 437*0Sstevel@tonic-gate } 438*0Sstevel@tonic-gate 439*0Sstevel@tonic-gate mutex_enter(&p->p_lock); 440*0Sstevel@tonic-gate 441*0Sstevel@tonic-gate /* 442*0Sstevel@tonic-gate * Clean up any DTrace probes associated with this process. 443*0Sstevel@tonic-gate */ 444*0Sstevel@tonic-gate if (p->p_dtrace_probes) { 445*0Sstevel@tonic-gate ASSERT(dtrace_fasttrap_exit_ptr != NULL); 446*0Sstevel@tonic-gate dtrace_fasttrap_exit_ptr(p); 447*0Sstevel@tonic-gate } 448*0Sstevel@tonic-gate 449*0Sstevel@tonic-gate while ((tmp_id = p->p_itimerid) != 0) { 450*0Sstevel@tonic-gate p->p_itimerid = 0; 451*0Sstevel@tonic-gate mutex_exit(&p->p_lock); 452*0Sstevel@tonic-gate (void) untimeout(tmp_id); 453*0Sstevel@tonic-gate mutex_enter(&p->p_lock); 454*0Sstevel@tonic-gate } 455*0Sstevel@tonic-gate 456*0Sstevel@tonic-gate lwp_cleanup(); 457*0Sstevel@tonic-gate 458*0Sstevel@tonic-gate /* 459*0Sstevel@tonic-gate * We are about to exit; prevent our resource associations from 460*0Sstevel@tonic-gate * being changed. 461*0Sstevel@tonic-gate */ 462*0Sstevel@tonic-gate pool_barrier_enter(); 463*0Sstevel@tonic-gate 464*0Sstevel@tonic-gate /* 465*0Sstevel@tonic-gate * Block the process against /proc now that we have really 466*0Sstevel@tonic-gate * acquired p->p_lock (to manipulate p_tlist at least). 467*0Sstevel@tonic-gate */ 468*0Sstevel@tonic-gate prbarrier(p); 469*0Sstevel@tonic-gate 470*0Sstevel@tonic-gate #ifdef SUN_SRC_COMPAT 471*0Sstevel@tonic-gate if (code == CLD_KILLED) 472*0Sstevel@tonic-gate u.u_acflag |= AXSIG; 473*0Sstevel@tonic-gate #endif 474*0Sstevel@tonic-gate sigfillset(&p->p_ignore); 475*0Sstevel@tonic-gate sigemptyset(&p->p_siginfo); 476*0Sstevel@tonic-gate sigemptyset(&p->p_sig); 477*0Sstevel@tonic-gate sigemptyset(&p->p_extsig); 478*0Sstevel@tonic-gate sigemptyset(&t->t_sig); 479*0Sstevel@tonic-gate sigemptyset(&t->t_extsig); 480*0Sstevel@tonic-gate sigemptyset(&p->p_sigmask); 481*0Sstevel@tonic-gate sigdelq(p, t, 0); 482*0Sstevel@tonic-gate lwp->lwp_cursig = 0; 483*0Sstevel@tonic-gate lwp->lwp_extsig = 0; 484*0Sstevel@tonic-gate p->p_flag &= ~(SKILLED | SEXTKILLED); 485*0Sstevel@tonic-gate if (lwp->lwp_curinfo) { 486*0Sstevel@tonic-gate siginfofree(lwp->lwp_curinfo); 487*0Sstevel@tonic-gate lwp->lwp_curinfo = NULL; 488*0Sstevel@tonic-gate } 489*0Sstevel@tonic-gate 490*0Sstevel@tonic-gate t->t_proc_flag |= TP_LWPEXIT; 491*0Sstevel@tonic-gate ASSERT(p->p_lwpcnt == 1 && p->p_zombcnt == 0); 492*0Sstevel@tonic-gate prlwpexit(t); /* notify /proc */ 493*0Sstevel@tonic-gate lwp_hash_out(p, t->t_tid); 494*0Sstevel@tonic-gate prexit(p); 495*0Sstevel@tonic-gate 496*0Sstevel@tonic-gate p->p_lwpcnt = 0; 497*0Sstevel@tonic-gate p->p_tlist = NULL; 498*0Sstevel@tonic-gate sigqfree(p); 499*0Sstevel@tonic-gate term_mstate(t); 500*0Sstevel@tonic-gate p->p_mterm = gethrtime(); 501*0Sstevel@tonic-gate 502*0Sstevel@tonic-gate exec_vp = p->p_exec; 503*0Sstevel@tonic-gate execdir_vp = p->p_execdir; 504*0Sstevel@tonic-gate p->p_exec = NULLVP; 505*0Sstevel@tonic-gate p->p_execdir = NULLVP; 506*0Sstevel@tonic-gate mutex_exit(&p->p_lock); 507*0Sstevel@tonic-gate if (exec_vp) 508*0Sstevel@tonic-gate VN_RELE(exec_vp); 509*0Sstevel@tonic-gate if (execdir_vp) 510*0Sstevel@tonic-gate VN_RELE(execdir_vp); 511*0Sstevel@tonic-gate 512*0Sstevel@tonic-gate pr_free_watched_pages(p); 513*0Sstevel@tonic-gate 514*0Sstevel@tonic-gate closeall(P_FINFO(p)); 515*0Sstevel@tonic-gate 516*0Sstevel@tonic-gate mutex_enter(&pidlock); 517*0Sstevel@tonic-gate sp = p->p_sessp; 518*0Sstevel@tonic-gate if (sp->s_sidp == p->p_pidp && sp->s_vp != NULL) { 519*0Sstevel@tonic-gate mutex_exit(&pidlock); 520*0Sstevel@tonic-gate freectty(sp); 521*0Sstevel@tonic-gate } else 522*0Sstevel@tonic-gate mutex_exit(&pidlock); 523*0Sstevel@tonic-gate 524*0Sstevel@tonic-gate #if defined(__x86) 525*0Sstevel@tonic-gate /* 526*0Sstevel@tonic-gate * If the process was using a private LDT then free it. 527*0Sstevel@tonic-gate */ 528*0Sstevel@tonic-gate if (p->p_ldt) 529*0Sstevel@tonic-gate ldt_free(p); 530*0Sstevel@tonic-gate #endif 531*0Sstevel@tonic-gate 532*0Sstevel@tonic-gate #if defined(__sparc) 533*0Sstevel@tonic-gate if (p->p_utraps != NULL) 534*0Sstevel@tonic-gate utrap_free(p); 535*0Sstevel@tonic-gate #endif 536*0Sstevel@tonic-gate if (p->p_semacct) /* IPC semaphore exit */ 537*0Sstevel@tonic-gate semexit(p); 538*0Sstevel@tonic-gate rv = wstat(why, what); 539*0Sstevel@tonic-gate 540*0Sstevel@tonic-gate acct(rv & 0xff); 541*0Sstevel@tonic-gate exacct_commit_proc(p, rv); 542*0Sstevel@tonic-gate 543*0Sstevel@tonic-gate /* 544*0Sstevel@tonic-gate * Release any resources associated with C2 auditing 545*0Sstevel@tonic-gate */ 546*0Sstevel@tonic-gate #ifdef C2_AUDIT 547*0Sstevel@tonic-gate if (audit_active) { 548*0Sstevel@tonic-gate /* 549*0Sstevel@tonic-gate * audit exit system call 550*0Sstevel@tonic-gate */ 551*0Sstevel@tonic-gate audit_exit(why, what); 552*0Sstevel@tonic-gate } 553*0Sstevel@tonic-gate #endif 554*0Sstevel@tonic-gate 555*0Sstevel@tonic-gate /* 556*0Sstevel@tonic-gate * Free address space. 557*0Sstevel@tonic-gate */ 558*0Sstevel@tonic-gate relvm(); 559*0Sstevel@tonic-gate 560*0Sstevel@tonic-gate /* 561*0Sstevel@tonic-gate * Release held contracts. 562*0Sstevel@tonic-gate */ 563*0Sstevel@tonic-gate contract_exit(p); 564*0Sstevel@tonic-gate 565*0Sstevel@tonic-gate /* 566*0Sstevel@tonic-gate * Depart our encapsulating process contract. 567*0Sstevel@tonic-gate */ 568*0Sstevel@tonic-gate if ((p->p_flag & SSYS) == 0) { 569*0Sstevel@tonic-gate ASSERT(p->p_ct_process); 570*0Sstevel@tonic-gate contract_process_exit(p->p_ct_process, p, rv); 571*0Sstevel@tonic-gate } 572*0Sstevel@tonic-gate 573*0Sstevel@tonic-gate /* 574*0Sstevel@tonic-gate * Remove pool association, and block if requested by pool_do_bind. 575*0Sstevel@tonic-gate */ 576*0Sstevel@tonic-gate mutex_enter(&p->p_lock); 577*0Sstevel@tonic-gate ASSERT(p->p_pool->pool_ref > 0); 578*0Sstevel@tonic-gate atomic_add_32(&p->p_pool->pool_ref, -1); 579*0Sstevel@tonic-gate p->p_pool = pool_default; 580*0Sstevel@tonic-gate /* 581*0Sstevel@tonic-gate * Now that our address space has been freed and all other threads 582*0Sstevel@tonic-gate * in this process have exited, set the PEXITED pool flag. This 583*0Sstevel@tonic-gate * tells the pools subsystems to ignore this process if it was 584*0Sstevel@tonic-gate * requested to rebind this process to a new pool. 585*0Sstevel@tonic-gate */ 586*0Sstevel@tonic-gate p->p_poolflag |= PEXITED; 587*0Sstevel@tonic-gate pool_barrier_exit(); 588*0Sstevel@tonic-gate mutex_exit(&p->p_lock); 589*0Sstevel@tonic-gate 590*0Sstevel@tonic-gate mutex_enter(&pidlock); 591*0Sstevel@tonic-gate 592*0Sstevel@tonic-gate /* 593*0Sstevel@tonic-gate * Delete this process from the newstate list of its parent. We 594*0Sstevel@tonic-gate * will put it in the right place in the sigcld in the end. 595*0Sstevel@tonic-gate */ 596*0Sstevel@tonic-gate delete_ns(p->p_parent, p); 597*0Sstevel@tonic-gate 598*0Sstevel@tonic-gate /* 599*0Sstevel@tonic-gate * Reassign the orphans to the next of kin. 600*0Sstevel@tonic-gate * Don't rearrange init's orphanage. 601*0Sstevel@tonic-gate */ 602*0Sstevel@tonic-gate if ((q = p->p_orphan) != NULL && p != proc_init) { 603*0Sstevel@tonic-gate 604*0Sstevel@tonic-gate proc_t *nokp = p->p_nextofkin; 605*0Sstevel@tonic-gate 606*0Sstevel@tonic-gate for (;;) { 607*0Sstevel@tonic-gate q->p_nextofkin = nokp; 608*0Sstevel@tonic-gate if (q->p_nextorph == NULL) 609*0Sstevel@tonic-gate break; 610*0Sstevel@tonic-gate q = q->p_nextorph; 611*0Sstevel@tonic-gate } 612*0Sstevel@tonic-gate q->p_nextorph = nokp->p_orphan; 613*0Sstevel@tonic-gate nokp->p_orphan = p->p_orphan; 614*0Sstevel@tonic-gate p->p_orphan = NULL; 615*0Sstevel@tonic-gate } 616*0Sstevel@tonic-gate 617*0Sstevel@tonic-gate /* 618*0Sstevel@tonic-gate * Reassign the children to init. 619*0Sstevel@tonic-gate * Don't try to assign init's children to init. 620*0Sstevel@tonic-gate */ 621*0Sstevel@tonic-gate if ((q = p->p_child) != NULL && p != proc_init) { 622*0Sstevel@tonic-gate struct proc *np; 623*0Sstevel@tonic-gate struct proc *initp = proc_init; 624*0Sstevel@tonic-gate boolean_t setzonetop = B_FALSE; 625*0Sstevel@tonic-gate 626*0Sstevel@tonic-gate if (!INGLOBALZONE(curproc)) 627*0Sstevel@tonic-gate setzonetop = B_TRUE; 628*0Sstevel@tonic-gate 629*0Sstevel@tonic-gate pgdetach(p); 630*0Sstevel@tonic-gate 631*0Sstevel@tonic-gate do { 632*0Sstevel@tonic-gate np = q->p_sibling; 633*0Sstevel@tonic-gate /* 634*0Sstevel@tonic-gate * Delete it from its current parent new state 635*0Sstevel@tonic-gate * list and add it to init new state list 636*0Sstevel@tonic-gate */ 637*0Sstevel@tonic-gate delete_ns(q->p_parent, q); 638*0Sstevel@tonic-gate 639*0Sstevel@tonic-gate q->p_ppid = 1; 640*0Sstevel@tonic-gate if (setzonetop) { 641*0Sstevel@tonic-gate mutex_enter(&q->p_lock); 642*0Sstevel@tonic-gate q->p_flag |= SZONETOP; 643*0Sstevel@tonic-gate mutex_exit(&q->p_lock); 644*0Sstevel@tonic-gate } 645*0Sstevel@tonic-gate q->p_parent = initp; 646*0Sstevel@tonic-gate 647*0Sstevel@tonic-gate /* 648*0Sstevel@tonic-gate * Since q will be the first child, 649*0Sstevel@tonic-gate * it will not have a previous sibling. 650*0Sstevel@tonic-gate */ 651*0Sstevel@tonic-gate q->p_psibling = NULL; 652*0Sstevel@tonic-gate if (initp->p_child) { 653*0Sstevel@tonic-gate initp->p_child->p_psibling = q; 654*0Sstevel@tonic-gate } 655*0Sstevel@tonic-gate q->p_sibling = initp->p_child; 656*0Sstevel@tonic-gate initp->p_child = q; 657*0Sstevel@tonic-gate if (q->p_proc_flag & P_PR_PTRACE) { 658*0Sstevel@tonic-gate mutex_enter(&q->p_lock); 659*0Sstevel@tonic-gate sigtoproc(q, NULL, SIGKILL); 660*0Sstevel@tonic-gate mutex_exit(&q->p_lock); 661*0Sstevel@tonic-gate } 662*0Sstevel@tonic-gate /* 663*0Sstevel@tonic-gate * sigcld() will add the child to parents 664*0Sstevel@tonic-gate * newstate list. 665*0Sstevel@tonic-gate */ 666*0Sstevel@tonic-gate if (q->p_stat == SZOMB) 667*0Sstevel@tonic-gate sigcld(q, NULL); 668*0Sstevel@tonic-gate } while ((q = np) != NULL); 669*0Sstevel@tonic-gate 670*0Sstevel@tonic-gate p->p_child = NULL; 671*0Sstevel@tonic-gate ASSERT(p->p_child_ns == NULL); 672*0Sstevel@tonic-gate } 673*0Sstevel@tonic-gate 674*0Sstevel@tonic-gate TRACE_1(TR_FAC_PROC, TR_PROC_EXIT, "proc_exit: %p", p); 675*0Sstevel@tonic-gate 676*0Sstevel@tonic-gate mutex_enter(&p->p_lock); 677*0Sstevel@tonic-gate CL_EXIT(curthread); /* tell the scheduler that curthread is exiting */ 678*0Sstevel@tonic-gate 679*0Sstevel@tonic-gate hrutime = mstate_aggr_state(p, LMS_USER); 680*0Sstevel@tonic-gate hrstime = mstate_aggr_state(p, LMS_SYSTEM); 681*0Sstevel@tonic-gate p->p_utime = (clock_t)NSEC_TO_TICK(hrutime) + p->p_cutime; 682*0Sstevel@tonic-gate p->p_stime = (clock_t)NSEC_TO_TICK(hrstime) + p->p_cstime; 683*0Sstevel@tonic-gate 684*0Sstevel@tonic-gate p->p_acct[LMS_USER] += p->p_cacct[LMS_USER]; 685*0Sstevel@tonic-gate p->p_acct[LMS_SYSTEM] += p->p_cacct[LMS_SYSTEM]; 686*0Sstevel@tonic-gate p->p_acct[LMS_TRAP] += p->p_cacct[LMS_TRAP]; 687*0Sstevel@tonic-gate p->p_acct[LMS_TFAULT] += p->p_cacct[LMS_TFAULT]; 688*0Sstevel@tonic-gate p->p_acct[LMS_DFAULT] += p->p_cacct[LMS_DFAULT]; 689*0Sstevel@tonic-gate p->p_acct[LMS_KFAULT] += p->p_cacct[LMS_KFAULT]; 690*0Sstevel@tonic-gate p->p_acct[LMS_USER_LOCK] += p->p_cacct[LMS_USER_LOCK]; 691*0Sstevel@tonic-gate p->p_acct[LMS_SLEEP] += p->p_cacct[LMS_SLEEP]; 692*0Sstevel@tonic-gate p->p_acct[LMS_WAIT_CPU] += p->p_cacct[LMS_WAIT_CPU]; 693*0Sstevel@tonic-gate p->p_acct[LMS_STOPPED] += p->p_cacct[LMS_STOPPED]; 694*0Sstevel@tonic-gate 695*0Sstevel@tonic-gate p->p_ru.minflt += p->p_cru.minflt; 696*0Sstevel@tonic-gate p->p_ru.majflt += p->p_cru.majflt; 697*0Sstevel@tonic-gate p->p_ru.nswap += p->p_cru.nswap; 698*0Sstevel@tonic-gate p->p_ru.inblock += p->p_cru.inblock; 699*0Sstevel@tonic-gate p->p_ru.oublock += p->p_cru.oublock; 700*0Sstevel@tonic-gate p->p_ru.msgsnd += p->p_cru.msgsnd; 701*0Sstevel@tonic-gate p->p_ru.msgrcv += p->p_cru.msgrcv; 702*0Sstevel@tonic-gate p->p_ru.nsignals += p->p_cru.nsignals; 703*0Sstevel@tonic-gate p->p_ru.nvcsw += p->p_cru.nvcsw; 704*0Sstevel@tonic-gate p->p_ru.nivcsw += p->p_cru.nivcsw; 705*0Sstevel@tonic-gate p->p_ru.sysc += p->p_cru.sysc; 706*0Sstevel@tonic-gate p->p_ru.ioch += p->p_cru.ioch; 707*0Sstevel@tonic-gate 708*0Sstevel@tonic-gate p->p_stat = SZOMB; 709*0Sstevel@tonic-gate p->p_proc_flag &= ~P_PR_PTRACE; 710*0Sstevel@tonic-gate p->p_wdata = what; 711*0Sstevel@tonic-gate p->p_wcode = (char)why; 712*0Sstevel@tonic-gate 713*0Sstevel@tonic-gate cdir = PTOU(p)->u_cdir; 714*0Sstevel@tonic-gate rdir = PTOU(p)->u_rdir; 715*0Sstevel@tonic-gate cwd = PTOU(p)->u_cwd; 716*0Sstevel@tonic-gate 717*0Sstevel@tonic-gate /* 718*0Sstevel@tonic-gate * Release resource controls, as they are no longer enforceable. 719*0Sstevel@tonic-gate */ 720*0Sstevel@tonic-gate rctl_set_free(p->p_rctls); 721*0Sstevel@tonic-gate 722*0Sstevel@tonic-gate /* 723*0Sstevel@tonic-gate * Give up task and project memberships. Decrement tk_nlwps counter 724*0Sstevel@tonic-gate * for our task.max-lwps resource control. An extended accounting 725*0Sstevel@tonic-gate * record, if that facility is active, is scheduled to be written. 726*0Sstevel@tonic-gate * Zombie processes are false members of task0 for the remainder of 727*0Sstevel@tonic-gate * their lifetime; no accounting information is recorded for them. 728*0Sstevel@tonic-gate */ 729*0Sstevel@tonic-gate tk = p->p_task; 730*0Sstevel@tonic-gate 731*0Sstevel@tonic-gate mutex_enter(&p->p_zone->zone_nlwps_lock); 732*0Sstevel@tonic-gate tk->tk_nlwps--; 733*0Sstevel@tonic-gate tk->tk_proj->kpj_nlwps--; 734*0Sstevel@tonic-gate p->p_zone->zone_nlwps--; 735*0Sstevel@tonic-gate mutex_exit(&p->p_zone->zone_nlwps_lock); 736*0Sstevel@tonic-gate task_detach(p); 737*0Sstevel@tonic-gate p->p_task = task0p; 738*0Sstevel@tonic-gate 739*0Sstevel@tonic-gate /* 740*0Sstevel@tonic-gate * Clear the lwp directory and the lwpid hash table 741*0Sstevel@tonic-gate * now that /proc can't bother us any more. 742*0Sstevel@tonic-gate * We free the memory below, after dropping p->p_lock. 743*0Sstevel@tonic-gate */ 744*0Sstevel@tonic-gate lwpdir = p->p_lwpdir; 745*0Sstevel@tonic-gate lwpdir_sz = p->p_lwpdir_sz; 746*0Sstevel@tonic-gate tidhash = p->p_tidhash; 747*0Sstevel@tonic-gate tidhash_sz = p->p_tidhash_sz; 748*0Sstevel@tonic-gate p->p_lwpdir = NULL; 749*0Sstevel@tonic-gate p->p_lwpfree = NULL; 750*0Sstevel@tonic-gate p->p_lwpdir_sz = 0; 751*0Sstevel@tonic-gate p->p_tidhash = NULL; 752*0Sstevel@tonic-gate p->p_tidhash_sz = 0; 753*0Sstevel@tonic-gate 754*0Sstevel@tonic-gate /* 755*0Sstevel@tonic-gate * curthread's proc pointer is changed to point at p0 because 756*0Sstevel@tonic-gate * curthread's original proc pointer can be freed as soon as 757*0Sstevel@tonic-gate * the child sends a SIGCLD to its parent. 758*0Sstevel@tonic-gate */ 759*0Sstevel@tonic-gate t->t_procp = &p0; 760*0Sstevel@tonic-gate 761*0Sstevel@tonic-gate mutex_exit(&p->p_lock); 762*0Sstevel@tonic-gate sigcld(p, sqp); 763*0Sstevel@tonic-gate mutex_exit(&pidlock); 764*0Sstevel@tonic-gate 765*0Sstevel@tonic-gate task_rele(tk); 766*0Sstevel@tonic-gate 767*0Sstevel@tonic-gate kmem_free(lwpdir, lwpdir_sz * sizeof (lwpdir_t)); 768*0Sstevel@tonic-gate kmem_free(tidhash, tidhash_sz * sizeof (lwpdir_t *)); 769*0Sstevel@tonic-gate 770*0Sstevel@tonic-gate /* 771*0Sstevel@tonic-gate * We don't release u_cdir and u_rdir until SZOMB is set. 772*0Sstevel@tonic-gate * This protects us against dofusers(). 773*0Sstevel@tonic-gate */ 774*0Sstevel@tonic-gate VN_RELE(cdir); 775*0Sstevel@tonic-gate if (rdir) 776*0Sstevel@tonic-gate VN_RELE(rdir); 777*0Sstevel@tonic-gate if (cwd) 778*0Sstevel@tonic-gate refstr_rele(cwd); 779*0Sstevel@tonic-gate 780*0Sstevel@tonic-gate lwp_pcb_exit(); 781*0Sstevel@tonic-gate 782*0Sstevel@tonic-gate thread_exit(); 783*0Sstevel@tonic-gate /* NOTREACHED */ 784*0Sstevel@tonic-gate } 785*0Sstevel@tonic-gate 786*0Sstevel@tonic-gate /* 787*0Sstevel@tonic-gate * Format siginfo structure for wait system calls. 788*0Sstevel@tonic-gate */ 789*0Sstevel@tonic-gate void 790*0Sstevel@tonic-gate winfo(proc_t *pp, k_siginfo_t *ip, int waitflag) 791*0Sstevel@tonic-gate { 792*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&pidlock)); 793*0Sstevel@tonic-gate 794*0Sstevel@tonic-gate bzero(ip, sizeof (k_siginfo_t)); 795*0Sstevel@tonic-gate ip->si_signo = SIGCLD; 796*0Sstevel@tonic-gate ip->si_code = pp->p_wcode; 797*0Sstevel@tonic-gate ip->si_pid = pp->p_pid; 798*0Sstevel@tonic-gate ip->si_ctid = PRCTID(pp); 799*0Sstevel@tonic-gate ip->si_zoneid = pp->p_zone->zone_id; 800*0Sstevel@tonic-gate ip->si_status = pp->p_wdata; 801*0Sstevel@tonic-gate ip->si_stime = pp->p_stime; 802*0Sstevel@tonic-gate ip->si_utime = pp->p_utime; 803*0Sstevel@tonic-gate 804*0Sstevel@tonic-gate if (waitflag) { 805*0Sstevel@tonic-gate pp->p_wcode = 0; 806*0Sstevel@tonic-gate pp->p_wdata = 0; 807*0Sstevel@tonic-gate pp->p_pidflag &= ~CLDPEND; 808*0Sstevel@tonic-gate } 809*0Sstevel@tonic-gate } 810*0Sstevel@tonic-gate 811*0Sstevel@tonic-gate /* 812*0Sstevel@tonic-gate * Wait system call. 813*0Sstevel@tonic-gate * Search for a terminated (zombie) child, 814*0Sstevel@tonic-gate * finally lay it to rest, and collect its status. 815*0Sstevel@tonic-gate * Look also for stopped children, 816*0Sstevel@tonic-gate * and pass back status from them. 817*0Sstevel@tonic-gate */ 818*0Sstevel@tonic-gate int 819*0Sstevel@tonic-gate waitid(idtype_t idtype, id_t id, k_siginfo_t *ip, int options) 820*0Sstevel@tonic-gate { 821*0Sstevel@tonic-gate int found; 822*0Sstevel@tonic-gate proc_t *cp, *pp; 823*0Sstevel@tonic-gate proc_t **nsp; 824*0Sstevel@tonic-gate int proc_gone; 825*0Sstevel@tonic-gate int waitflag = !(options & WNOWAIT); 826*0Sstevel@tonic-gate 827*0Sstevel@tonic-gate /* 828*0Sstevel@tonic-gate * Obsolete flag, defined here only for binary compatibility 829*0Sstevel@tonic-gate * with old statically linked executables. Delete this when 830*0Sstevel@tonic-gate * we no longer care about these old and broken applications. 831*0Sstevel@tonic-gate */ 832*0Sstevel@tonic-gate #define _WNOCHLD 0400 833*0Sstevel@tonic-gate options &= ~_WNOCHLD; 834*0Sstevel@tonic-gate 835*0Sstevel@tonic-gate if (options == 0 || (options & ~WOPTMASK)) 836*0Sstevel@tonic-gate return (EINVAL); 837*0Sstevel@tonic-gate 838*0Sstevel@tonic-gate switch (idtype) { 839*0Sstevel@tonic-gate case P_PID: 840*0Sstevel@tonic-gate case P_PGID: 841*0Sstevel@tonic-gate if (id < 0 || id >= maxpid) 842*0Sstevel@tonic-gate return (EINVAL); 843*0Sstevel@tonic-gate /* FALLTHROUGH */ 844*0Sstevel@tonic-gate case P_ALL: 845*0Sstevel@tonic-gate break; 846*0Sstevel@tonic-gate default: 847*0Sstevel@tonic-gate return (EINVAL); 848*0Sstevel@tonic-gate } 849*0Sstevel@tonic-gate 850*0Sstevel@tonic-gate pp = ttoproc(curthread); 851*0Sstevel@tonic-gate /* 852*0Sstevel@tonic-gate * lock parent mutex so that sibling chain can be searched. 853*0Sstevel@tonic-gate */ 854*0Sstevel@tonic-gate mutex_enter(&pidlock); 855*0Sstevel@tonic-gate while ((cp = pp->p_child) != NULL) { 856*0Sstevel@tonic-gate 857*0Sstevel@tonic-gate proc_gone = 0; 858*0Sstevel@tonic-gate 859*0Sstevel@tonic-gate for (nsp = &pp->p_child_ns; *nsp; nsp = &(*nsp)->p_sibling_ns) { 860*0Sstevel@tonic-gate if (idtype == P_PID && id != (*nsp)->p_pid) { 861*0Sstevel@tonic-gate continue; 862*0Sstevel@tonic-gate } 863*0Sstevel@tonic-gate if (idtype == P_PGID && id != (*nsp)->p_pgrp) { 864*0Sstevel@tonic-gate continue; 865*0Sstevel@tonic-gate } 866*0Sstevel@tonic-gate 867*0Sstevel@tonic-gate switch ((*nsp)->p_wcode) { 868*0Sstevel@tonic-gate 869*0Sstevel@tonic-gate case CLD_TRAPPED: 870*0Sstevel@tonic-gate case CLD_STOPPED: 871*0Sstevel@tonic-gate case CLD_CONTINUED: 872*0Sstevel@tonic-gate cmn_err(CE_PANIC, 873*0Sstevel@tonic-gate "waitid: wrong state %d on the p_newstate" 874*0Sstevel@tonic-gate " list", (*nsp)->p_wcode); 875*0Sstevel@tonic-gate break; 876*0Sstevel@tonic-gate 877*0Sstevel@tonic-gate case CLD_EXITED: 878*0Sstevel@tonic-gate case CLD_DUMPED: 879*0Sstevel@tonic-gate case CLD_KILLED: 880*0Sstevel@tonic-gate if (!(options & WEXITED)) { 881*0Sstevel@tonic-gate /* 882*0Sstevel@tonic-gate * Count how many are already gone 883*0Sstevel@tonic-gate * for good. 884*0Sstevel@tonic-gate */ 885*0Sstevel@tonic-gate proc_gone++; 886*0Sstevel@tonic-gate break; 887*0Sstevel@tonic-gate } 888*0Sstevel@tonic-gate if (!waitflag) { 889*0Sstevel@tonic-gate winfo((*nsp), ip, 0); 890*0Sstevel@tonic-gate } else { 891*0Sstevel@tonic-gate proc_t *xp = *nsp; 892*0Sstevel@tonic-gate winfo(xp, ip, 1); 893*0Sstevel@tonic-gate freeproc(xp); 894*0Sstevel@tonic-gate } 895*0Sstevel@tonic-gate mutex_exit(&pidlock); 896*0Sstevel@tonic-gate if (waitflag) { /* accept SIGCLD */ 897*0Sstevel@tonic-gate sigcld_delete(ip); 898*0Sstevel@tonic-gate sigcld_repost(); 899*0Sstevel@tonic-gate } 900*0Sstevel@tonic-gate return (0); 901*0Sstevel@tonic-gate } 902*0Sstevel@tonic-gate 903*0Sstevel@tonic-gate if (idtype == P_PID) 904*0Sstevel@tonic-gate break; 905*0Sstevel@tonic-gate } 906*0Sstevel@tonic-gate 907*0Sstevel@tonic-gate /* 908*0Sstevel@tonic-gate * Wow! None of the threads on the p_sibling_ns list were 909*0Sstevel@tonic-gate * interesting threads. Check all the kids! 910*0Sstevel@tonic-gate */ 911*0Sstevel@tonic-gate found = 0; 912*0Sstevel@tonic-gate cp = pp->p_child; 913*0Sstevel@tonic-gate do { 914*0Sstevel@tonic-gate if (idtype == P_PID && id != cp->p_pid) { 915*0Sstevel@tonic-gate continue; 916*0Sstevel@tonic-gate } 917*0Sstevel@tonic-gate if (idtype == P_PGID && id != cp->p_pgrp) { 918*0Sstevel@tonic-gate continue; 919*0Sstevel@tonic-gate } 920*0Sstevel@tonic-gate 921*0Sstevel@tonic-gate found++; 922*0Sstevel@tonic-gate 923*0Sstevel@tonic-gate switch (cp->p_wcode) { 924*0Sstevel@tonic-gate case CLD_TRAPPED: 925*0Sstevel@tonic-gate if (!(options & WTRAPPED)) 926*0Sstevel@tonic-gate break; 927*0Sstevel@tonic-gate winfo(cp, ip, waitflag); 928*0Sstevel@tonic-gate mutex_exit(&pidlock); 929*0Sstevel@tonic-gate if (waitflag) { /* accept SIGCLD */ 930*0Sstevel@tonic-gate sigcld_delete(ip); 931*0Sstevel@tonic-gate sigcld_repost(); 932*0Sstevel@tonic-gate } 933*0Sstevel@tonic-gate return (0); 934*0Sstevel@tonic-gate 935*0Sstevel@tonic-gate case CLD_STOPPED: 936*0Sstevel@tonic-gate if (!(options & WSTOPPED)) 937*0Sstevel@tonic-gate break; 938*0Sstevel@tonic-gate /* Is it still stopped? */ 939*0Sstevel@tonic-gate mutex_enter(&cp->p_lock); 940*0Sstevel@tonic-gate if (!jobstopped(cp)) { 941*0Sstevel@tonic-gate mutex_exit(&cp->p_lock); 942*0Sstevel@tonic-gate break; 943*0Sstevel@tonic-gate } 944*0Sstevel@tonic-gate mutex_exit(&cp->p_lock); 945*0Sstevel@tonic-gate winfo(cp, ip, waitflag); 946*0Sstevel@tonic-gate mutex_exit(&pidlock); 947*0Sstevel@tonic-gate if (waitflag) { /* accept SIGCLD */ 948*0Sstevel@tonic-gate sigcld_delete(ip); 949*0Sstevel@tonic-gate sigcld_repost(); 950*0Sstevel@tonic-gate } 951*0Sstevel@tonic-gate return (0); 952*0Sstevel@tonic-gate 953*0Sstevel@tonic-gate case CLD_CONTINUED: 954*0Sstevel@tonic-gate if (!(options & WCONTINUED)) 955*0Sstevel@tonic-gate break; 956*0Sstevel@tonic-gate winfo(cp, ip, waitflag); 957*0Sstevel@tonic-gate mutex_exit(&pidlock); 958*0Sstevel@tonic-gate if (waitflag) { /* accept SIGCLD */ 959*0Sstevel@tonic-gate sigcld_delete(ip); 960*0Sstevel@tonic-gate sigcld_repost(); 961*0Sstevel@tonic-gate } 962*0Sstevel@tonic-gate return (0); 963*0Sstevel@tonic-gate 964*0Sstevel@tonic-gate case CLD_EXITED: 965*0Sstevel@tonic-gate case CLD_DUMPED: 966*0Sstevel@tonic-gate case CLD_KILLED: 967*0Sstevel@tonic-gate /* 968*0Sstevel@tonic-gate * Don't complain if a process was found in 969*0Sstevel@tonic-gate * the first loop but we broke out of the loop 970*0Sstevel@tonic-gate * because of the arguments passed to us. 971*0Sstevel@tonic-gate */ 972*0Sstevel@tonic-gate if (proc_gone == 0) { 973*0Sstevel@tonic-gate cmn_err(CE_PANIC, 974*0Sstevel@tonic-gate "waitid: wrong state on the" 975*0Sstevel@tonic-gate " p_child list"); 976*0Sstevel@tonic-gate } else { 977*0Sstevel@tonic-gate break; 978*0Sstevel@tonic-gate } 979*0Sstevel@tonic-gate } 980*0Sstevel@tonic-gate 981*0Sstevel@tonic-gate if (idtype == P_PID) 982*0Sstevel@tonic-gate break; 983*0Sstevel@tonic-gate } while ((cp = cp->p_sibling) != NULL); 984*0Sstevel@tonic-gate 985*0Sstevel@tonic-gate /* 986*0Sstevel@tonic-gate * If we found no interesting processes at all, 987*0Sstevel@tonic-gate * break out and return ECHILD. 988*0Sstevel@tonic-gate */ 989*0Sstevel@tonic-gate if (found + proc_gone == 0) 990*0Sstevel@tonic-gate break; 991*0Sstevel@tonic-gate 992*0Sstevel@tonic-gate if (options & WNOHANG) { 993*0Sstevel@tonic-gate bzero(ip, sizeof (k_siginfo_t)); 994*0Sstevel@tonic-gate /* 995*0Sstevel@tonic-gate * We should set ip->si_signo = SIGCLD, 996*0Sstevel@tonic-gate * but there is an SVVS test that expects 997*0Sstevel@tonic-gate * ip->si_signo to be zero in this case. 998*0Sstevel@tonic-gate */ 999*0Sstevel@tonic-gate mutex_exit(&pidlock); 1000*0Sstevel@tonic-gate return (0); 1001*0Sstevel@tonic-gate } 1002*0Sstevel@tonic-gate 1003*0Sstevel@tonic-gate /* 1004*0Sstevel@tonic-gate * If we found no processes of interest that could 1005*0Sstevel@tonic-gate * change state while we wait, we don't wait at all. 1006*0Sstevel@tonic-gate * Get out with ECHILD according to SVID. 1007*0Sstevel@tonic-gate */ 1008*0Sstevel@tonic-gate if (found == proc_gone) 1009*0Sstevel@tonic-gate break; 1010*0Sstevel@tonic-gate 1011*0Sstevel@tonic-gate if (!cv_wait_sig_swap(&pp->p_cv, &pidlock)) { 1012*0Sstevel@tonic-gate mutex_exit(&pidlock); 1013*0Sstevel@tonic-gate return (EINTR); 1014*0Sstevel@tonic-gate } 1015*0Sstevel@tonic-gate } 1016*0Sstevel@tonic-gate mutex_exit(&pidlock); 1017*0Sstevel@tonic-gate return (ECHILD); 1018*0Sstevel@tonic-gate } 1019*0Sstevel@tonic-gate 1020*0Sstevel@tonic-gate /* 1021*0Sstevel@tonic-gate * For implementations that don't require binary compatibility, 1022*0Sstevel@tonic-gate * the wait system call may be made into a library call to the 1023*0Sstevel@tonic-gate * waitid system call. 1024*0Sstevel@tonic-gate */ 1025*0Sstevel@tonic-gate int64_t 1026*0Sstevel@tonic-gate wait(void) 1027*0Sstevel@tonic-gate { 1028*0Sstevel@tonic-gate int error; 1029*0Sstevel@tonic-gate k_siginfo_t info; 1030*0Sstevel@tonic-gate rval_t r; 1031*0Sstevel@tonic-gate 1032*0Sstevel@tonic-gate if (error = waitid(P_ALL, (id_t)0, &info, WEXITED|WTRAPPED)) 1033*0Sstevel@tonic-gate return (set_errno(error)); 1034*0Sstevel@tonic-gate r.r_val1 = info.si_pid; 1035*0Sstevel@tonic-gate r.r_val2 = wstat(info.si_code, info.si_status); 1036*0Sstevel@tonic-gate return (r.r_vals); 1037*0Sstevel@tonic-gate } 1038*0Sstevel@tonic-gate 1039*0Sstevel@tonic-gate int 1040*0Sstevel@tonic-gate waitsys(idtype_t idtype, id_t id, siginfo_t *infop, int options) 1041*0Sstevel@tonic-gate { 1042*0Sstevel@tonic-gate int error; 1043*0Sstevel@tonic-gate k_siginfo_t info; 1044*0Sstevel@tonic-gate 1045*0Sstevel@tonic-gate if (error = waitid(idtype, id, &info, options)) 1046*0Sstevel@tonic-gate return (set_errno(error)); 1047*0Sstevel@tonic-gate if (copyout(&info, infop, sizeof (k_siginfo_t))) 1048*0Sstevel@tonic-gate return (set_errno(EFAULT)); 1049*0Sstevel@tonic-gate return (0); 1050*0Sstevel@tonic-gate } 1051*0Sstevel@tonic-gate 1052*0Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 1053*0Sstevel@tonic-gate 1054*0Sstevel@tonic-gate int 1055*0Sstevel@tonic-gate waitsys32(idtype_t idtype, id_t id, siginfo_t *infop, int options) 1056*0Sstevel@tonic-gate { 1057*0Sstevel@tonic-gate int error; 1058*0Sstevel@tonic-gate k_siginfo_t info; 1059*0Sstevel@tonic-gate siginfo32_t info32; 1060*0Sstevel@tonic-gate 1061*0Sstevel@tonic-gate if (error = waitid(idtype, id, &info, options)) 1062*0Sstevel@tonic-gate return (set_errno(error)); 1063*0Sstevel@tonic-gate siginfo_kto32(&info, &info32); 1064*0Sstevel@tonic-gate if (copyout(&info32, infop, sizeof (info32))) 1065*0Sstevel@tonic-gate return (set_errno(EFAULT)); 1066*0Sstevel@tonic-gate return (0); 1067*0Sstevel@tonic-gate } 1068*0Sstevel@tonic-gate 1069*0Sstevel@tonic-gate #endif /* _SYSCALL32_IMPL */ 1070*0Sstevel@tonic-gate 1071*0Sstevel@tonic-gate void 1072*0Sstevel@tonic-gate proc_detach(proc_t *p) 1073*0Sstevel@tonic-gate { 1074*0Sstevel@tonic-gate proc_t *q; 1075*0Sstevel@tonic-gate 1076*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&pidlock)); 1077*0Sstevel@tonic-gate 1078*0Sstevel@tonic-gate q = p->p_parent; 1079*0Sstevel@tonic-gate ASSERT(q != NULL); 1080*0Sstevel@tonic-gate 1081*0Sstevel@tonic-gate /* 1082*0Sstevel@tonic-gate * Take it off the newstate list of its parent 1083*0Sstevel@tonic-gate */ 1084*0Sstevel@tonic-gate delete_ns(q, p); 1085*0Sstevel@tonic-gate 1086*0Sstevel@tonic-gate if (q->p_child == p) { 1087*0Sstevel@tonic-gate q->p_child = p->p_sibling; 1088*0Sstevel@tonic-gate /* 1089*0Sstevel@tonic-gate * If the parent has no children, it better not 1090*0Sstevel@tonic-gate * have any with new states either! 1091*0Sstevel@tonic-gate */ 1092*0Sstevel@tonic-gate ASSERT(q->p_child ? 1 : q->p_child_ns == NULL); 1093*0Sstevel@tonic-gate } 1094*0Sstevel@tonic-gate 1095*0Sstevel@tonic-gate if (p->p_sibling) { 1096*0Sstevel@tonic-gate p->p_sibling->p_psibling = p->p_psibling; 1097*0Sstevel@tonic-gate } 1098*0Sstevel@tonic-gate 1099*0Sstevel@tonic-gate if (p->p_psibling) { 1100*0Sstevel@tonic-gate p->p_psibling->p_sibling = p->p_sibling; 1101*0Sstevel@tonic-gate } 1102*0Sstevel@tonic-gate } 1103*0Sstevel@tonic-gate 1104*0Sstevel@tonic-gate /* 1105*0Sstevel@tonic-gate * Remove zombie children from the process table. 1106*0Sstevel@tonic-gate */ 1107*0Sstevel@tonic-gate void 1108*0Sstevel@tonic-gate freeproc(proc_t *p) 1109*0Sstevel@tonic-gate { 1110*0Sstevel@tonic-gate proc_t *q; 1111*0Sstevel@tonic-gate 1112*0Sstevel@tonic-gate ASSERT(p->p_stat == SZOMB); 1113*0Sstevel@tonic-gate ASSERT(p->p_tlist == NULL); 1114*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&pidlock)); 1115*0Sstevel@tonic-gate 1116*0Sstevel@tonic-gate sigdelq(p, NULL, 0); 1117*0Sstevel@tonic-gate if (p->p_killsqp) { 1118*0Sstevel@tonic-gate siginfofree(p->p_killsqp); 1119*0Sstevel@tonic-gate p->p_killsqp = NULL; 1120*0Sstevel@tonic-gate } 1121*0Sstevel@tonic-gate 1122*0Sstevel@tonic-gate prfree(p); /* inform /proc */ 1123*0Sstevel@tonic-gate 1124*0Sstevel@tonic-gate /* 1125*0Sstevel@tonic-gate * Don't free the init processes. 1126*0Sstevel@tonic-gate * Other dying processes will access it. 1127*0Sstevel@tonic-gate */ 1128*0Sstevel@tonic-gate if (p == proc_init) 1129*0Sstevel@tonic-gate return; 1130*0Sstevel@tonic-gate 1131*0Sstevel@tonic-gate 1132*0Sstevel@tonic-gate /* 1133*0Sstevel@tonic-gate * We wait until now to free the cred structure because a 1134*0Sstevel@tonic-gate * zombie process's credentials may be examined by /proc. 1135*0Sstevel@tonic-gate * No cred locking needed because there are no threads at this point. 1136*0Sstevel@tonic-gate */ 1137*0Sstevel@tonic-gate upcount_dec(crgetruid(p->p_cred), crgetzoneid(p->p_cred)); 1138*0Sstevel@tonic-gate crfree(p->p_cred); 1139*0Sstevel@tonic-gate if (p->p_corefile != NULL) { 1140*0Sstevel@tonic-gate corectl_path_rele(p->p_corefile); 1141*0Sstevel@tonic-gate p->p_corefile = NULL; 1142*0Sstevel@tonic-gate } 1143*0Sstevel@tonic-gate if (p->p_content != NULL) { 1144*0Sstevel@tonic-gate corectl_content_rele(p->p_content); 1145*0Sstevel@tonic-gate p->p_content = NULL; 1146*0Sstevel@tonic-gate } 1147*0Sstevel@tonic-gate 1148*0Sstevel@tonic-gate if (p->p_nextofkin && !((p->p_nextofkin->p_flag & SNOWAIT) || 1149*0Sstevel@tonic-gate (PTOU(p->p_nextofkin)->u_signal[SIGCLD - 1] == SIG_IGN))) { 1150*0Sstevel@tonic-gate /* 1151*0Sstevel@tonic-gate * This should still do the right thing since p_utime/stime 1152*0Sstevel@tonic-gate * get set to the correct value on process exit, so it 1153*0Sstevel@tonic-gate * should get properly updated 1154*0Sstevel@tonic-gate */ 1155*0Sstevel@tonic-gate p->p_nextofkin->p_cutime += p->p_utime; 1156*0Sstevel@tonic-gate p->p_nextofkin->p_cstime += p->p_stime; 1157*0Sstevel@tonic-gate 1158*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_USER] += p->p_acct[LMS_USER]; 1159*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_SYSTEM] += p->p_acct[LMS_SYSTEM]; 1160*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_TRAP] += p->p_acct[LMS_TRAP]; 1161*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_TFAULT] += p->p_acct[LMS_TFAULT]; 1162*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_DFAULT] += p->p_acct[LMS_DFAULT]; 1163*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_KFAULT] += p->p_acct[LMS_KFAULT]; 1164*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_USER_LOCK] 1165*0Sstevel@tonic-gate += p->p_acct[LMS_USER_LOCK]; 1166*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_SLEEP] += p->p_acct[LMS_SLEEP]; 1167*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_WAIT_CPU] 1168*0Sstevel@tonic-gate += p->p_acct[LMS_WAIT_CPU]; 1169*0Sstevel@tonic-gate p->p_nextofkin->p_cacct[LMS_STOPPED] += p->p_acct[LMS_STOPPED]; 1170*0Sstevel@tonic-gate 1171*0Sstevel@tonic-gate p->p_nextofkin->p_cru.minflt += p->p_ru.minflt; 1172*0Sstevel@tonic-gate p->p_nextofkin->p_cru.majflt += p->p_ru.majflt; 1173*0Sstevel@tonic-gate p->p_nextofkin->p_cru.nswap += p->p_ru.nswap; 1174*0Sstevel@tonic-gate p->p_nextofkin->p_cru.inblock += p->p_ru.inblock; 1175*0Sstevel@tonic-gate p->p_nextofkin->p_cru.oublock += p->p_ru.oublock; 1176*0Sstevel@tonic-gate p->p_nextofkin->p_cru.msgsnd += p->p_ru.msgsnd; 1177*0Sstevel@tonic-gate p->p_nextofkin->p_cru.msgrcv += p->p_ru.msgrcv; 1178*0Sstevel@tonic-gate p->p_nextofkin->p_cru.nsignals += p->p_ru.nsignals; 1179*0Sstevel@tonic-gate p->p_nextofkin->p_cru.nvcsw += p->p_ru.nvcsw; 1180*0Sstevel@tonic-gate p->p_nextofkin->p_cru.nivcsw += p->p_ru.nivcsw; 1181*0Sstevel@tonic-gate p->p_nextofkin->p_cru.sysc += p->p_ru.sysc; 1182*0Sstevel@tonic-gate p->p_nextofkin->p_cru.ioch += p->p_ru.ioch; 1183*0Sstevel@tonic-gate 1184*0Sstevel@tonic-gate } 1185*0Sstevel@tonic-gate 1186*0Sstevel@tonic-gate q = p->p_nextofkin; 1187*0Sstevel@tonic-gate if (q && q->p_orphan == p) 1188*0Sstevel@tonic-gate q->p_orphan = p->p_nextorph; 1189*0Sstevel@tonic-gate else if (q) { 1190*0Sstevel@tonic-gate for (q = q->p_orphan; q; q = q->p_nextorph) 1191*0Sstevel@tonic-gate if (q->p_nextorph == p) 1192*0Sstevel@tonic-gate break; 1193*0Sstevel@tonic-gate ASSERT(q && q->p_nextorph == p); 1194*0Sstevel@tonic-gate q->p_nextorph = p->p_nextorph; 1195*0Sstevel@tonic-gate } 1196*0Sstevel@tonic-gate 1197*0Sstevel@tonic-gate proc_detach(p); 1198*0Sstevel@tonic-gate pid_exit(p); /* frees pid and proc structure */ 1199*0Sstevel@tonic-gate } 1200*0Sstevel@tonic-gate 1201*0Sstevel@tonic-gate /* 1202*0Sstevel@tonic-gate * Delete process "child" from the newstate list of process "parent" 1203*0Sstevel@tonic-gate */ 1204*0Sstevel@tonic-gate void 1205*0Sstevel@tonic-gate delete_ns(proc_t *parent, proc_t *child) 1206*0Sstevel@tonic-gate { 1207*0Sstevel@tonic-gate proc_t **ns; 1208*0Sstevel@tonic-gate 1209*0Sstevel@tonic-gate ASSERT(MUTEX_HELD(&pidlock)); 1210*0Sstevel@tonic-gate ASSERT(child->p_parent == parent); 1211*0Sstevel@tonic-gate for (ns = &parent->p_child_ns; *ns != NULL; ns = &(*ns)->p_sibling_ns) { 1212*0Sstevel@tonic-gate if (*ns == child) { 1213*0Sstevel@tonic-gate 1214*0Sstevel@tonic-gate ASSERT((*ns)->p_parent == parent); 1215*0Sstevel@tonic-gate 1216*0Sstevel@tonic-gate *ns = child->p_sibling_ns; 1217*0Sstevel@tonic-gate child->p_sibling_ns = NULL; 1218*0Sstevel@tonic-gate return; 1219*0Sstevel@tonic-gate } 1220*0Sstevel@tonic-gate } 1221*0Sstevel@tonic-gate } 1222*0Sstevel@tonic-gate 1223*0Sstevel@tonic-gate /* 1224*0Sstevel@tonic-gate * Add process "child" to the new state list of process "parent" 1225*0Sstevel@tonic-gate */ 1226*0Sstevel@tonic-gate void 1227*0Sstevel@tonic-gate add_ns(proc_t *parent, proc_t *child) 1228*0Sstevel@tonic-gate { 1229*0Sstevel@tonic-gate ASSERT(child->p_sibling_ns == NULL); 1230*0Sstevel@tonic-gate child->p_sibling_ns = parent->p_child_ns; 1231*0Sstevel@tonic-gate parent->p_child_ns = child; 1232*0Sstevel@tonic-gate } 1233