2 * Copyright (c) 1995 Terrence R. Lambert
5 * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 * (c) UNIX System Laboratories, Inc.
8 * All or some portions of this file are derived from material licensed
9 * to the University of California by American Telephone and Telegraph
10 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
11 * the permission of UNIX System Laboratories, Inc.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the University of
24 * California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 * @(#)init_main.c 8.9 (Berkeley) 1/21/94
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
48 #include "opt_init_path.h"
50 #include <sys/param.h>
51 #include <sys/kernel.h>
54 #include <sys/filedesc.h>
58 #include <sys/loginclass.h>
59 #include <sys/mount.h>
60 #include <sys/mutex.h>
61 #include <sys/syscallsubr.h>
62 #include <sys/sysctl.h>
64 #include <sys/racct.h>
65 #include <sys/resourcevar.h>
66 #include <sys/systm.h>
67 #include <sys/signalvar.h>
68 #include <sys/vnode.h>
69 #include <sys/sysent.h>
70 #include <sys/reboot.h>
71 #include <sys/sched.h>
73 #include <sys/sysproto.h>
74 #include <sys/vmmeter.h>
75 #include <sys/unistd.h>
76 #include <sys/malloc.h>
78 #include <sys/cpuset.h>
80 #include <machine/cpu.h>
82 #include <security/audit/audit.h>
83 #include <security/mac/mac_framework.h>
86 #include <vm/vm_param.h>
88 #include <vm/vm_map.h>
89 #include <sys/copyright.h>
92 #include <ddb/db_sym.h>
94 void mi_startup(void); /* Should be elsewhere */
96 /* Components of the first process -- never freed. */
97 static struct session session0;
98 static struct pgrp pgrp0;
100 struct thread thread0 __aligned(16);
101 struct vmspace vmspace0;
102 struct proc *initproc;
104 int boothowto = 0; /* initialized so that it can be patched */
105 SYSCTL_INT(_debug, OID_AUTO, boothowto, CTLFLAG_RD, &boothowto, 0,
106 "Boot control flags, passed from loader");
108 SYSCTL_INT(_debug, OID_AUTO, bootverbose, CTLFLAG_RW, &bootverbose, 0,
109 "Control the output of verbose kernel messages");
112 * This ensures that there is at least one entry so that the sysinit_set
113 * symbol is not undefined. A sybsystem ID of SI_SUB_DUMMY is never
116 SYSINIT(placeholder, SI_SUB_DUMMY, SI_ORDER_ANY, NULL, NULL);
119 * The sysinit table itself. Items are checked off as the are run.
120 * If we want to register new sysinit types, add them to newsysinit.
122 SET_DECLARE(sysinit_set, struct sysinit);
123 struct sysinit **sysinit, **sysinit_end;
124 struct sysinit **newsysinit, **newsysinit_end;
127 * Merge a new sysinit set into the current set, reallocating it if
128 * necessary. This can only be called after malloc is running.
131 sysinit_add(struct sysinit **set, struct sysinit **set_end)
133 struct sysinit **newset;
134 struct sysinit **sipp;
135 struct sysinit **xipp;
138 count = set_end - set;
140 count += newsysinit_end - newsysinit;
142 count += sysinit_end - sysinit;
143 newset = malloc(count * sizeof(*sipp), M_TEMP, M_NOWAIT);
145 panic("cannot malloc for sysinit");
148 for (sipp = newsysinit; sipp < newsysinit_end; sipp++)
151 for (sipp = sysinit; sipp < sysinit_end; sipp++)
153 for (sipp = set; sipp < set_end; sipp++)
156 free(newsysinit, M_TEMP);
158 newsysinit_end = newset + count;
161 #if defined (DDB) && defined(VERBOSE_SYSINIT)
163 symbol_name(vm_offset_t va, db_strategy_t strategy)
171 sym = db_search_symbol(va, strategy, &offset);
174 db_symbol_values(sym, &name, NULL);
180 * System startup; initialize the world, create process 0, mount root
181 * filesystem, and fork to create init and pagedaemon. Most of the
182 * hard work is done in the lower-level initialization routines including
183 * startup(), which does memory initialization and autoconfiguration.
185 * This allows simple addition of new kernel subsystems that require
186 * boot time initialization. It also allows substitution of subsystem
187 * (for instance, a scheduler, kernel profiler, or VM system) by object
188 * module. Finally, it allows for optional "kernel threads".
194 register struct sysinit **sipp; /* system initialization*/
195 register struct sysinit **xipp; /* interior loop of sort*/
196 register struct sysinit *save; /* bubble*/
198 #if defined(VERBOSE_SYSINIT)
203 if (boothowto & RB_VERBOSE)
206 if (sysinit == NULL) {
207 sysinit = SET_BEGIN(sysinit_set);
208 sysinit_end = SET_LIMIT(sysinit_set);
213 * Perform a bubble sort of the system initialization objects by
214 * their subsystem (primary key) and order (secondary key).
216 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
217 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) {
218 if ((*sipp)->subsystem < (*xipp)->subsystem ||
219 ((*sipp)->subsystem == (*xipp)->subsystem &&
220 (*sipp)->order <= (*xipp)->order))
228 #if defined(VERBOSE_SYSINIT)
229 last = SI_SUB_COPYRIGHT;
232 printf("VERBOSE_SYSINIT: DDB not enabled, symbol lookups disabled.\n");
237 * Traverse the (now) ordered list of system initialization tasks.
238 * Perform each task, and continue on to the next task.
240 * The last item on the list is expected to be the scheduler,
241 * which will not return.
243 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
245 if ((*sipp)->subsystem == SI_SUB_DUMMY)
246 continue; /* skip dummy task(s)*/
248 if ((*sipp)->subsystem == SI_SUB_DONE)
251 #if defined(VERBOSE_SYSINIT)
252 if ((*sipp)->subsystem > last) {
254 last = (*sipp)->subsystem;
255 printf("subsystem %x\n", last);
259 const char *func, *data;
261 func = symbol_name((vm_offset_t)(*sipp)->func,
263 data = symbol_name((vm_offset_t)(*sipp)->udata,
265 if (func != NULL && data != NULL)
266 printf(" %s(&%s)... ", func, data);
267 else if (func != NULL)
268 printf(" %s(%p)... ", func, (*sipp)->udata);
271 printf(" %p(%p)... ", (*sipp)->func,
277 (*((*sipp)->func))((*sipp)->udata);
279 #if defined(VERBOSE_SYSINIT)
284 /* Check off the one we're just done */
285 (*sipp)->subsystem = SI_SUB_DONE;
287 /* Check if we've installed more sysinit items via KLD */
288 if (newsysinit != NULL) {
289 if (sysinit != SET_BEGIN(sysinit_set))
290 free(sysinit, M_TEMP);
291 sysinit = newsysinit;
292 sysinit_end = newsysinit_end;
294 newsysinit_end = NULL;
299 panic("Shouldn't get here!");
305 ***************************************************************************
307 **** The following SYSINIT's belong elsewhere, but have not yet
310 ***************************************************************************
313 print_caddr_t(void *data)
315 printf("%s", (char *)data);
319 print_version(void *data __unused)
323 /* Strip a trailing newline from version. */
324 len = strlen(version);
325 while (len > 0 && version[len - 1] == '\n')
327 printf("%.*s %s\n", len, version, machine);
328 printf("%s\n", compiler_version);
331 SYSINIT(announce, SI_SUB_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t,
333 SYSINIT(trademark, SI_SUB_COPYRIGHT, SI_ORDER_SECOND, print_caddr_t,
335 SYSINIT(version, SI_SUB_COPYRIGHT, SI_ORDER_THIRD, print_version, NULL);
338 static char wit_warn[] =
339 "WARNING: WITNESS option enabled, expect reduced performance.\n";
340 SYSINIT(witwarn, SI_SUB_COPYRIGHT, SI_ORDER_THIRD + 1,
341 print_caddr_t, wit_warn);
342 SYSINIT(witwarn2, SI_SUB_RUN_SCHEDULER, SI_ORDER_THIRD + 1,
343 print_caddr_t, wit_warn);
347 static char diag_warn[] =
348 "WARNING: DIAGNOSTIC option enabled, expect reduced performance.\n";
349 SYSINIT(diagwarn, SI_SUB_COPYRIGHT, SI_ORDER_THIRD + 2,
350 print_caddr_t, diag_warn);
351 SYSINIT(diagwarn2, SI_SUB_RUN_SCHEDULER, SI_ORDER_THIRD + 2,
352 print_caddr_t, diag_warn);
356 null_fetch_syscall_args(struct thread *td __unused,
357 struct syscall_args *sa __unused)
360 panic("null_fetch_syscall_args");
364 null_set_syscall_retval(struct thread *td __unused, int error __unused)
367 panic("null_set_syscall_retval");
370 struct sysentvec null_sysvec = {
378 .sv_transtrap = NULL,
382 .sv_szsigcode = NULL,
383 .sv_prepsyscall = NULL,
386 .sv_imgact_try = NULL,
388 .sv_pagesize = PAGE_SIZE,
389 .sv_minuser = VM_MIN_ADDRESS,
390 .sv_maxuser = VM_MAXUSER_ADDRESS,
391 .sv_usrstack = USRSTACK,
392 .sv_psstrings = PS_STRINGS,
393 .sv_stackprot = VM_PROT_ALL,
394 .sv_copyout_strings = NULL,
399 .sv_set_syscall_retval = null_set_syscall_retval,
400 .sv_fetch_syscall_args = null_fetch_syscall_args,
401 .sv_syscallnames = NULL,
402 .sv_schedtail = NULL,
406 ***************************************************************************
408 **** The two following SYSINIT's are proc0 specific glue code. I am not
409 **** convinced that they can not be safely combined, but their order of
410 **** operation has been maintained as the same as the original init_main.c
413 **** These probably belong in init_proc.c or kern_proc.c, since they
414 **** deal with proc0 (the fork template process).
416 ***************************************************************************
420 proc0_init(void *dummy __unused)
424 vm_paddr_t pageablemem;
432 * Initialize magic number and osrel.
434 p->p_magic = P_MAGIC;
435 p->p_osrel = osreldate;
438 * Initialize thread and process structures.
440 procinit(); /* set up proc zone */
441 threadinit(); /* set up UMA zones */
444 * Initialise scheduler resources.
445 * Add scheduler specific parts to proc, thread as needed.
447 schedinit(); /* scheduler gets its house in order */
449 * Initialize sleep queue hash table
454 * additional VM structures
459 * Create process 0 (the swapper).
461 LIST_INSERT_HEAD(&allproc, p, p_list);
462 LIST_INSERT_HEAD(PIDHASH(0), p, p_hash);
463 mtx_init(&pgrp0.pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
465 LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
466 LIST_INIT(&pgrp0.pg_members);
467 LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
469 pgrp0.pg_session = &session0;
470 mtx_init(&session0.s_mtx, "session", NULL, MTX_DEF);
471 refcount_init(&session0.s_count, 1);
472 session0.s_leader = p;
474 p->p_sysent = &null_sysvec;
475 p->p_flag = P_SYSTEM | P_INMEM;
476 p->p_state = PRS_NORMAL;
477 knlist_init_mtx(&p->p_klist, &p->p_mtx);
478 STAILQ_INIT(&p->p_ktr);
480 /* pid_max cannot be greater than PID_MAX */
481 td->td_tid = PID_MAX + 1;
482 LIST_INSERT_HEAD(TIDHASH(td->td_tid), td, td_hash);
483 td->td_state = TDS_RUNNING;
484 td->td_pri_class = PRI_TIMESHARE;
485 td->td_user_pri = PUSER;
486 td->td_base_user_pri = PUSER;
487 td->td_lend_user_pri = PRI_MAX;
488 td->td_priority = PVM;
489 td->td_base_pri = PVM;
491 td->td_flags = TDF_INMEM|TDP_KTHREAD;
492 td->td_cpuset = cpuset_thread0();
493 prison0.pr_cpuset = cpuset_ref(td->td_cpuset);
498 strncpy(p->p_comm, "kernel", sizeof (p->p_comm));
499 strncpy(td->td_name, "swapper", sizeof (td->td_name));
501 callout_init_mtx(&p->p_itcallout, &p->p_mtx, 0);
502 callout_init_mtx(&p->p_limco, &p->p_mtx, 0);
503 callout_init(&td->td_slpcallout, CALLOUT_MPSAFE);
505 /* Create credentials. */
506 p->p_ucred = crget();
507 p->p_ucred->cr_ngroups = 1; /* group 0 */
508 p->p_ucred->cr_uidinfo = uifind(0);
509 p->p_ucred->cr_ruidinfo = uifind(0);
510 p->p_ucred->cr_prison = &prison0;
511 p->p_ucred->cr_loginclass = loginclass_find("default");
513 audit_cred_kproc0(p->p_ucred);
516 mac_cred_create_swapper(p->p_ucred);
518 td->td_ucred = crhold(p->p_ucred);
520 /* Create sigacts. */
521 p->p_sigacts = sigacts_alloc();
523 /* Initialize signal state for process 0. */
526 /* Create the file descriptor table. */
527 p->p_fd = fdinit(NULL);
530 /* Create the limits structures. */
531 p->p_limit = lim_alloc();
532 for (i = 0; i < RLIM_NLIMITS; i++)
533 p->p_limit->pl_rlimit[i].rlim_cur =
534 p->p_limit->pl_rlimit[i].rlim_max = RLIM_INFINITY;
535 p->p_limit->pl_rlimit[RLIMIT_NOFILE].rlim_cur =
536 p->p_limit->pl_rlimit[RLIMIT_NOFILE].rlim_max = maxfiles;
537 p->p_limit->pl_rlimit[RLIMIT_NPROC].rlim_cur =
538 p->p_limit->pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
539 p->p_limit->pl_rlimit[RLIMIT_DATA].rlim_cur = dfldsiz;
540 p->p_limit->pl_rlimit[RLIMIT_DATA].rlim_max = maxdsiz;
541 p->p_limit->pl_rlimit[RLIMIT_STACK].rlim_cur = dflssiz;
542 p->p_limit->pl_rlimit[RLIMIT_STACK].rlim_max = maxssiz;
543 /* Cast to avoid overflow on i386/PAE. */
544 pageablemem = ptoa((vm_paddr_t)cnt.v_free_count);
545 p->p_limit->pl_rlimit[RLIMIT_RSS].rlim_cur =
546 p->p_limit->pl_rlimit[RLIMIT_RSS].rlim_max = pageablemem;
547 p->p_limit->pl_rlimit[RLIMIT_MEMLOCK].rlim_cur = pageablemem / 3;
548 p->p_limit->pl_rlimit[RLIMIT_MEMLOCK].rlim_max = pageablemem;
549 p->p_cpulimit = RLIM_INFINITY;
551 /* Initialize resource accounting structures. */
552 racct_create(&p->p_racct);
554 p->p_stats = pstats_alloc();
556 /* Allocate a prototype map so we have something to fork. */
557 pmap_pinit0(vmspace_pmap(&vmspace0));
558 p->p_vmspace = &vmspace0;
559 vmspace0.vm_refcnt = 1;
562 * proc0 is not expected to enter usermode, so there is no special
563 * handling for sv_minuser here, like is done for exec_new_vmspace().
565 vm_map_init(&vmspace0.vm_map, vmspace_pmap(&vmspace0),
566 p->p_sysent->sv_minuser, p->p_sysent->sv_maxuser);
569 * Call the init and ctor for the new thread and proc. We wait
570 * to do this until all other structures are fairly sane.
572 EVENTHANDLER_INVOKE(process_init, p);
573 EVENTHANDLER_INVOKE(thread_init, td);
574 EVENTHANDLER_INVOKE(process_ctor, p);
575 EVENTHANDLER_INVOKE(thread_ctor, td);
578 * Charge root for one process.
580 (void)chgproccnt(p->p_ucred->cr_ruidinfo, 1, 0);
582 racct_add_force(p, RACCT_NPROC, 1);
585 SYSINIT(p0init, SI_SUB_INTRINSIC, SI_ORDER_FIRST, proc0_init, NULL);
589 proc0_post(void *dummy __unused)
597 * Now we can look at the time, having had a chance to verify the
598 * time from the filesystem. Pretend that proc0 started now.
600 sx_slock(&allproc_lock);
601 FOREACH_PROC_IN_SYSTEM(p) {
602 microuptime(&p->p_stats->p_start);
604 rufetch(p, &ru); /* Clears thread stats */
606 p->p_rux.rux_runtime = 0;
607 p->p_rux.rux_uticks = 0;
608 p->p_rux.rux_sticks = 0;
609 p->p_rux.rux_iticks = 0;
610 FOREACH_THREAD_IN_PROC(p, td) {
614 sx_sunlock(&allproc_lock);
615 PCPU_SET(switchtime, cpu_ticks());
616 PCPU_SET(switchticks, ticks);
619 * Give the ``random'' number generator a thump.
622 srandom(ts.tv_sec ^ ts.tv_nsec);
624 SYSINIT(p0post, SI_SUB_INTRINSIC_POST, SI_ORDER_FIRST, proc0_post, NULL);
627 random_init(void *dummy __unused)
631 * After CPU has been started we have some randomness on most
632 * platforms via get_cyclecount(). For platforms that don't
633 * we will reseed random(9) in proc0_post() as well.
635 srandom(get_cyclecount());
637 SYSINIT(random, SI_SUB_RANDOM, SI_ORDER_FIRST, random_init, NULL);
640 ***************************************************************************
642 **** The following SYSINIT's and glue code should be moved to the
643 **** respective files on a per subsystem basis.
645 ***************************************************************************
650 ***************************************************************************
652 **** The following code probably belongs in another file, like
653 **** kern/init_init.c.
655 ***************************************************************************
659 * List of paths to try when searching for "init".
661 static char init_path[MAXPATHLEN] =
663 __XSTRING(INIT_PATH);
665 "/sbin/init:/sbin/oinit:/sbin/init.bak:/rescue/init:/stand/sysinstall";
667 SYSCTL_STRING(_kern, OID_AUTO, init_path, CTLFLAG_RD, init_path, 0,
668 "Path used to search the init process");
671 * Shutdown timeout of init(8).
672 * Unused within kernel, but used to control init(8), hence do not remove.
674 #ifndef INIT_SHUTDOWN_TIMEOUT
675 #define INIT_SHUTDOWN_TIMEOUT 120
677 static int init_shutdown_timeout = INIT_SHUTDOWN_TIMEOUT;
678 SYSCTL_INT(_kern, OID_AUTO, init_shutdown_timeout,
679 CTLFLAG_RW, &init_shutdown_timeout, 0, "Shutdown timeout of init(8). "
680 "Unused within kernel, but used to control init(8)");
683 * Start the initial user process; try exec'ing each pathname in init_path.
684 * The program is invoked with one argument containing the boot flags.
687 start_init(void *dummy)
690 struct execve_args args;
692 char *var, *path, *next, *s;
693 char *ucp, **uap, *arg0, *arg1;
707 * Need just enough stack to hold the faked-up "execve()" arguments.
709 addr = p->p_sysent->sv_usrstack - PAGE_SIZE;
710 if (vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr, PAGE_SIZE,
711 FALSE, VM_PROT_ALL, VM_PROT_ALL, 0) != 0)
712 panic("init: couldn't allocate argument space");
713 p->p_vmspace->vm_maxsaddr = (caddr_t)addr;
714 p->p_vmspace->vm_ssize = 1;
716 if ((var = getenv("init_path")) != NULL) {
717 strlcpy(init_path, var, sizeof(init_path));
721 for (path = init_path; *path != '\0'; path = next) {
726 for (next = path; *next != '\0' && *next != ':'; next++)
729 printf("start_init: trying %.*s\n", (int)(next - path),
733 * Move out the boot flag argument.
736 ucp = (char *)p->p_sysent->sv_usrstack;
737 (void)subyte(--ucp, 0); /* trailing zero */
738 if (boothowto & RB_SINGLE) {
739 (void)subyte(--ucp, 's');
743 if (boothowto & RB_FASTBOOT) {
744 (void)subyte(--ucp, 'f');
750 (void)subyte(--ucp, 'C');
755 (void)subyte(--ucp, '-');
756 (void)subyte(--ucp, '-'); /* leading hyphen */
760 * Move out the file name (also arg 0).
762 (void)subyte(--ucp, 0);
763 for (s = next - 1; s >= path; s--)
764 (void)subyte(--ucp, *s);
768 * Move out the arg pointers.
770 uap = (char **)((intptr_t)ucp & ~(sizeof(intptr_t)-1));
771 (void)suword((caddr_t)--uap, (long)0); /* terminator */
772 (void)suword((caddr_t)--uap, (long)(intptr_t)arg1);
773 (void)suword((caddr_t)--uap, (long)(intptr_t)arg0);
776 * Point at the arguments.
783 * Now try to exec the program. If can't for any reason
784 * other than it doesn't exist, complain.
786 * Otherwise, return via fork_trampoline() all the way
787 * to user mode as init!
789 if ((error = sys_execve(td, &args)) == 0) {
794 printf("exec %.*s: error %d\n", (int)(next - path),
797 printf("init: not found in path %s\n", init_path);
802 * Like kproc_create(), but runs in it's own address space.
803 * We do this early to reserve pid 1.
805 * Note special case - do not make it runnable yet. Other work
806 * in progress will change this more.
809 create_init(const void *udata __unused)
811 struct ucred *newcred, *oldcred;
814 error = fork1(&thread0, RFFDG | RFPROC | RFSTOPPED, 0, &initproc,
817 panic("cannot fork init: %d\n", error);
818 KASSERT(initproc->p_pid == 1, ("create_init: initproc->p_pid != 1"));
819 /* divorce init's credentials from the kernel's */
822 initproc->p_flag |= P_SYSTEM | P_INMEM;
823 oldcred = initproc->p_ucred;
824 crcopy(newcred, oldcred);
826 mac_cred_create_init(newcred);
829 audit_cred_proc1(newcred);
831 initproc->p_ucred = newcred;
832 PROC_UNLOCK(initproc);
834 cred_update_thread(FIRST_THREAD_IN_PROC(initproc));
835 cpu_set_fork_handler(FIRST_THREAD_IN_PROC(initproc), start_init, NULL);
837 SYSINIT(init, SI_SUB_CREATE_INIT, SI_ORDER_FIRST, create_init, NULL);
840 * Make it runnable now.
843 kick_init(const void *udata __unused)
847 td = FIRST_THREAD_IN_PROC(initproc);
850 sched_add(td, SRQ_BORING);
853 SYSINIT(kickinit, SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kick_init, NULL);