2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1995 Terrence R. Lambert
7 * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
8 * The Regents of the University of California. All rights reserved.
9 * (c) UNIX System Laboratories, Inc.
10 * All or some portions of this file are derived from material licensed
11 * to the University of California by American Telephone and Telegraph
12 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
13 * the permission of UNIX System Laboratories, Inc.
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 * 3. All advertising materials mentioning features or use of this software
24 * must display the following acknowledgement:
25 * This product includes software developed by the University of
26 * California, Berkeley and its contributors.
27 * 4. Neither the name of the University nor the names of its contributors
28 * may be used to endorse or promote products derived from this software
29 * without specific prior written permission.
31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * @(#)init_main.c 8.9 (Berkeley) 1/21/94
46 #include <sys/cdefs.h>
47 __FBSDID("$FreeBSD$");
50 #include "opt_init_path.h"
51 #include "opt_verbose_sysinit.h"
53 #include <sys/param.h>
54 #include <sys/kernel.h>
55 #include <sys/epoch.h>
56 #include <sys/eventhandler.h>
59 #include <sys/filedesc.h>
60 #include <sys/imgact.h>
64 #include <sys/loginclass.h>
65 #include <sys/mount.h>
66 #include <sys/mutex.h>
67 #include <sys/syscallsubr.h>
68 #include <sys/sysctl.h>
70 #include <sys/racct.h>
71 #include <sys/resourcevar.h>
72 #include <sys/systm.h>
73 #include <sys/signalvar.h>
74 #include <sys/vnode.h>
75 #include <sys/sysent.h>
76 #include <sys/reboot.h>
77 #include <sys/sched.h>
79 #include <sys/sysproto.h>
80 #include <sys/vmmeter.h>
81 #include <sys/unistd.h>
82 #include <sys/malloc.h>
84 #include <sys/cpuset.h>
86 #include <machine/cpu.h>
88 #include <security/audit/audit.h>
89 #include <security/mac/mac_framework.h>
92 #include <vm/vm_param.h>
93 #include <vm/vm_extern.h>
95 #include <vm/vm_map.h>
96 #include <sys/copyright.h>
99 #include <ddb/db_sym.h>
101 void mi_startup(void); /* Should be elsewhere */
103 /* Components of the first process -- never freed. */
104 static struct session session0;
105 static struct pgrp pgrp0;
107 struct thread0_storage thread0_st __aligned(32);
108 struct vmspace vmspace0;
109 struct proc *initproc;
112 linux_alloc_current_noop(struct thread *td __unused, int flags __unused)
116 int (*lkpi_alloc_current)(struct thread *, int) = linux_alloc_current_noop;
121 int boothowto = BOOTHOWTO; /* initialized so that it can be patched */
122 SYSCTL_INT(_debug, OID_AUTO, boothowto, CTLFLAG_RD, &boothowto, 0,
123 "Boot control flags, passed from loader");
126 #define BOOTVERBOSE 0
128 int bootverbose = BOOTVERBOSE;
129 SYSCTL_INT(_debug, OID_AUTO, bootverbose, CTLFLAG_RW, &bootverbose, 0,
130 "Control the output of verbose kernel messages");
132 #ifdef VERBOSE_SYSINIT
134 * We'll use the defined value of VERBOSE_SYSINIT from the kernel config to
135 * dictate the default VERBOSE_SYSINIT behavior. Significant values for this
136 * option and associated tunable are:
137 * - 0, 'compiled in but silent by default'
138 * - 1, 'compiled in but verbose by default' (default)
140 int verbose_sysinit = VERBOSE_SYSINIT;
141 TUNABLE_INT("debug.verbose_sysinit", &verbose_sysinit);
145 FEATURE(invariants, "Kernel compiled with INVARIANTS, may affect performance");
149 * This ensures that there is at least one entry so that the sysinit_set
150 * symbol is not undefined. A sybsystem ID of SI_SUB_DUMMY is never
153 SYSINIT(placeholder, SI_SUB_DUMMY, SI_ORDER_ANY, NULL, NULL);
156 * The sysinit table itself. Items are checked off as the are run.
157 * If we want to register new sysinit types, add them to newsysinit.
159 SET_DECLARE(sysinit_set, struct sysinit);
160 struct sysinit **sysinit, **sysinit_end;
161 struct sysinit **newsysinit, **newsysinit_end;
164 * Merge a new sysinit set into the current set, reallocating it if
165 * necessary. This can only be called after malloc is running.
168 sysinit_add(struct sysinit **set, struct sysinit **set_end)
170 struct sysinit **newset;
171 struct sysinit **sipp;
172 struct sysinit **xipp;
175 count = set_end - set;
177 count += newsysinit_end - newsysinit;
179 count += sysinit_end - sysinit;
180 newset = malloc(count * sizeof(*sipp), M_TEMP, M_NOWAIT);
182 panic("cannot malloc for sysinit");
185 for (sipp = newsysinit; sipp < newsysinit_end; sipp++)
188 for (sipp = sysinit; sipp < sysinit_end; sipp++)
190 for (sipp = set; sipp < set_end; sipp++)
193 free(newsysinit, M_TEMP);
195 newsysinit_end = newset + count;
198 #if defined (DDB) && defined(VERBOSE_SYSINIT)
200 symbol_name(vm_offset_t va, db_strategy_t strategy)
208 sym = db_search_symbol(va, strategy, &offset);
211 db_symbol_values(sym, &name, NULL);
217 * System startup; initialize the world, create process 0, mount root
218 * filesystem, and fork to create init and pagedaemon. Most of the
219 * hard work is done in the lower-level initialization routines including
220 * startup(), which does memory initialization and autoconfiguration.
222 * This allows simple addition of new kernel subsystems that require
223 * boot time initialization. It also allows substitution of subsystem
224 * (for instance, a scheduler, kernel profiler, or VM system) by object
225 * module. Finally, it allows for optional "kernel threads".
231 struct sysinit **sipp; /* system initialization*/
232 struct sysinit **xipp; /* interior loop of sort*/
233 struct sysinit *save; /* bubble*/
235 #if defined(VERBOSE_SYSINIT)
242 if (boothowto & RB_VERBOSE)
245 if (sysinit == NULL) {
246 sysinit = SET_BEGIN(sysinit_set);
247 sysinit_end = SET_LIMIT(sysinit_set);
252 * Perform a bubble sort of the system initialization objects by
253 * their subsystem (primary key) and order (secondary key).
255 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
256 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) {
257 if ((*sipp)->subsystem < (*xipp)->subsystem ||
258 ((*sipp)->subsystem == (*xipp)->subsystem &&
259 (*sipp)->order <= (*xipp)->order))
267 #if defined(VERBOSE_SYSINIT)
268 last = SI_SUB_COPYRIGHT;
271 printf("VERBOSE_SYSINIT: DDB not enabled, symbol lookups disabled.\n");
276 * Traverse the (now) ordered list of system initialization tasks.
277 * Perform each task, and continue on to the next task.
279 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
280 if ((*sipp)->subsystem == SI_SUB_DUMMY)
281 continue; /* skip dummy task(s)*/
283 if ((*sipp)->subsystem == SI_SUB_DONE)
286 #if defined(VERBOSE_SYSINIT)
287 if ((*sipp)->subsystem > last && verbose_sysinit != 0) {
289 last = (*sipp)->subsystem;
290 printf("subsystem %x\n", last);
294 const char *func, *data;
296 func = symbol_name((vm_offset_t)(*sipp)->func,
298 data = symbol_name((vm_offset_t)(*sipp)->udata,
300 if (func != NULL && data != NULL)
301 printf(" %s(&%s)... ", func, data);
302 else if (func != NULL)
303 printf(" %s(%p)... ", func, (*sipp)->udata);
306 printf(" %p(%p)... ", (*sipp)->func,
312 (*((*sipp)->func))((*sipp)->udata);
314 #if defined(VERBOSE_SYSINIT)
319 /* Check off the one we're just done */
320 (*sipp)->subsystem = SI_SUB_DONE;
322 /* Check if we've installed more sysinit items via KLD */
323 if (newsysinit != NULL) {
324 if (sysinit != SET_BEGIN(sysinit_set))
325 free(sysinit, M_TEMP);
326 sysinit = newsysinit;
327 sysinit_end = newsysinit_end;
329 newsysinit_end = NULL;
334 TSEXIT(); /* Here so we don't overlap with start_init. */
336 mtx_assert(&Giant, MA_OWNED | MA_NOTRECURSED);
340 * Now hand over this thread to swapper.
347 print_caddr_t(void *data)
349 printf("%s", (char *)data);
353 print_version(void *data __unused)
357 /* Strip a trailing newline from version. */
358 len = strlen(version);
359 while (len > 0 && version[len - 1] == '\n')
361 printf("%.*s %s\n", len, version, machine);
362 printf("%s\n", compiler_version);
365 SYSINIT(announce, SI_SUB_COPYRIGHT, SI_ORDER_FIRST, print_caddr_t,
367 SYSINIT(trademark, SI_SUB_COPYRIGHT, SI_ORDER_SECOND, print_caddr_t,
369 SYSINIT(version, SI_SUB_COPYRIGHT, SI_ORDER_THIRD, print_version, NULL);
372 static char wit_warn[] =
373 "WARNING: WITNESS option enabled, expect reduced performance.\n";
374 SYSINIT(witwarn, SI_SUB_COPYRIGHT, SI_ORDER_FOURTH,
375 print_caddr_t, wit_warn);
376 SYSINIT(witwarn2, SI_SUB_LAST, SI_ORDER_FOURTH,
377 print_caddr_t, wit_warn);
381 static char diag_warn[] =
382 "WARNING: DIAGNOSTIC option enabled, expect reduced performance.\n";
383 SYSINIT(diagwarn, SI_SUB_COPYRIGHT, SI_ORDER_FIFTH,
384 print_caddr_t, diag_warn);
385 SYSINIT(diagwarn2, SI_SUB_LAST, SI_ORDER_FIFTH,
386 print_caddr_t, diag_warn);
390 null_fetch_syscall_args(struct thread *td __unused)
393 panic("null_fetch_syscall_args");
397 null_set_syscall_retval(struct thread *td __unused, int error __unused)
400 panic("null_set_syscall_retval");
403 struct sysentvec null_sysvec = {
406 .sv_transtrap = NULL,
410 .sv_szsigcode = NULL,
413 .sv_imgact_try = NULL,
415 .sv_minuser = VM_MIN_ADDRESS,
416 .sv_maxuser = VM_MAXUSER_ADDRESS,
417 .sv_usrstack = USRSTACK,
418 .sv_psstrings = PS_STRINGS,
419 .sv_stackprot = VM_PROT_ALL,
420 .sv_copyout_strings = NULL,
425 .sv_set_syscall_retval = null_set_syscall_retval,
426 .sv_fetch_syscall_args = null_fetch_syscall_args,
427 .sv_syscallnames = NULL,
428 .sv_schedtail = NULL,
429 .sv_thread_detach = NULL,
434 * The two following SYSINIT's are proc0 specific glue code. I am not
435 * convinced that they can not be safely combined, but their order of
436 * operation has been maintained as the same as the original init_main.c
441 proc0_init(void *dummy __unused)
445 struct ucred *newcred;
446 struct uidinfo tmpuinfo;
447 struct loginclass tmplc = {
450 vm_paddr_t pageablemem;
458 * Initialize magic number and osrel.
460 p->p_magic = P_MAGIC;
461 p->p_osrel = osreldate;
464 * Initialize thread and process structures.
466 procinit(); /* set up proc zone */
467 threadinit(); /* set up UMA zones */
470 * Initialise scheduler resources.
471 * Add scheduler specific parts to proc, thread as needed.
473 schedinit(); /* scheduler gets its house in order */
476 * Create process 0 (the swapper).
478 LIST_INSERT_HEAD(&allproc, p, p_list);
479 LIST_INSERT_HEAD(PIDHASH(0), p, p_hash);
480 mtx_init(&pgrp0.pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
482 LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
483 LIST_INIT(&pgrp0.pg_members);
484 LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
486 pgrp0.pg_session = &session0;
487 mtx_init(&session0.s_mtx, "session", NULL, MTX_DEF);
488 refcount_init(&session0.s_count, 1);
489 session0.s_leader = p;
491 p->p_sysent = &null_sysvec;
492 p->p_flag = P_SYSTEM | P_INMEM | P_KPROC;
494 p->p_state = PRS_NORMAL;
495 p->p_klist = knlist_alloc(&p->p_mtx);
496 STAILQ_INIT(&p->p_ktr);
498 /* pid_max cannot be greater than PID_MAX */
499 td->td_tid = PID_MAX + 1;
500 LIST_INSERT_HEAD(TIDHASH(td->td_tid), td, td_hash);
501 td->td_state = TDS_RUNNING;
502 td->td_pri_class = PRI_TIMESHARE;
503 td->td_user_pri = PUSER;
504 td->td_base_user_pri = PUSER;
505 td->td_lend_user_pri = PRI_MAX;
506 td->td_priority = PVM;
507 td->td_base_pri = PVM;
508 td->td_oncpu = curcpu;
509 td->td_flags = TDF_INMEM;
510 td->td_pflags = TDP_KTHREAD;
511 td->td_cpuset = cpuset_thread0();
512 td->td_domain.dr_policy = td->td_cpuset->cs_domain;
517 p->p_treeflag |= P_TREE_REAPER;
518 LIST_INIT(&p->p_reaplist);
520 strncpy(p->p_comm, "kernel", sizeof (p->p_comm));
521 strncpy(td->td_name, "swapper", sizeof (td->td_name));
523 callout_init_mtx(&p->p_itcallout, &p->p_mtx, 0);
524 callout_init_mtx(&p->p_limco, &p->p_mtx, 0);
525 callout_init(&td->td_slpcallout, 1);
527 /* Create credentials. */
529 newcred->cr_ngroups = 1; /* group 0 */
530 /* A hack to prevent uifind from tripping over NULL pointers. */
531 curthread->td_ucred = newcred;
533 newcred->cr_uidinfo = newcred->cr_ruidinfo = &tmpuinfo;
534 newcred->cr_uidinfo = uifind(0);
535 newcred->cr_ruidinfo = uifind(0);
536 newcred->cr_loginclass = &tmplc;
537 newcred->cr_loginclass = loginclass_find("default");
538 /* End hack. creds get properly set later with thread_cow_get_proc */
539 curthread->td_ucred = NULL;
540 newcred->cr_prison = &prison0;
541 newcred->cr_users++; /* avoid assertion failure */
542 proc_set_cred_init(p, newcred);
546 audit_cred_kproc0(newcred);
549 mac_cred_create_swapper(newcred);
551 /* Create sigacts. */
552 p->p_sigacts = sigacts_alloc();
554 /* Initialize signal state for process 0. */
557 /* Create the file descriptor table. */
558 p->p_fd = fdinit(NULL, false, NULL);
561 /* Create the limits structures. */
562 p->p_limit = lim_alloc();
563 for (i = 0; i < RLIM_NLIMITS; i++)
564 p->p_limit->pl_rlimit[i].rlim_cur =
565 p->p_limit->pl_rlimit[i].rlim_max = RLIM_INFINITY;
566 p->p_limit->pl_rlimit[RLIMIT_NOFILE].rlim_cur =
567 p->p_limit->pl_rlimit[RLIMIT_NOFILE].rlim_max = maxfiles;
568 p->p_limit->pl_rlimit[RLIMIT_NPROC].rlim_cur =
569 p->p_limit->pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
570 p->p_limit->pl_rlimit[RLIMIT_DATA].rlim_cur = dfldsiz;
571 p->p_limit->pl_rlimit[RLIMIT_DATA].rlim_max = maxdsiz;
572 p->p_limit->pl_rlimit[RLIMIT_STACK].rlim_cur = dflssiz;
573 p->p_limit->pl_rlimit[RLIMIT_STACK].rlim_max = maxssiz;
574 /* Cast to avoid overflow on i386/PAE. */
575 pageablemem = ptoa((vm_paddr_t)vm_free_count());
576 p->p_limit->pl_rlimit[RLIMIT_RSS].rlim_cur =
577 p->p_limit->pl_rlimit[RLIMIT_RSS].rlim_max = pageablemem;
578 p->p_limit->pl_rlimit[RLIMIT_MEMLOCK].rlim_cur = pageablemem / 3;
579 p->p_limit->pl_rlimit[RLIMIT_MEMLOCK].rlim_max = pageablemem;
580 p->p_cpulimit = RLIM_INFINITY;
583 thread_cow_get_proc(td, p);
586 /* Initialize resource accounting structures. */
587 racct_create(&p->p_racct);
589 p->p_stats = pstats_alloc();
591 /* Allocate a prototype map so we have something to fork. */
592 p->p_vmspace = &vmspace0;
593 vmspace0.vm_refcnt = 1;
594 pmap_pinit0(vmspace_pmap(&vmspace0));
597 * proc0 is not expected to enter usermode, so there is no special
598 * handling for sv_minuser here, like is done for exec_new_vmspace().
600 vm_map_init(&vmspace0.vm_map, vmspace_pmap(&vmspace0),
601 p->p_sysent->sv_minuser, p->p_sysent->sv_maxuser);
604 * Call the init and ctor for the new thread and proc. We wait
605 * to do this until all other structures are fairly sane.
607 EVENTHANDLER_DIRECT_INVOKE(process_init, p);
608 EVENTHANDLER_DIRECT_INVOKE(thread_init, td);
609 EVENTHANDLER_DIRECT_INVOKE(process_ctor, p);
610 EVENTHANDLER_DIRECT_INVOKE(thread_ctor, td);
613 * Charge root for one process.
615 (void)chgproccnt(p->p_ucred->cr_ruidinfo, 1, 0);
617 racct_add_force(p, RACCT_NPROC, 1);
620 SYSINIT(p0init, SI_SUB_INTRINSIC, SI_ORDER_FIRST, proc0_init, NULL);
624 proc0_post(void *dummy __unused)
631 * Now we can look at the time, having had a chance to verify the
632 * time from the filesystem. Pretend that proc0 started now.
634 sx_slock(&allproc_lock);
635 FOREACH_PROC_IN_SYSTEM(p) {
637 if (p->p_state == PRS_NEW) {
641 microuptime(&p->p_stats->p_start);
643 rufetch(p, &ru); /* Clears thread stats */
644 p->p_rux.rux_runtime = 0;
645 p->p_rux.rux_uticks = 0;
646 p->p_rux.rux_sticks = 0;
647 p->p_rux.rux_iticks = 0;
649 FOREACH_THREAD_IN_PROC(p, td) {
654 sx_sunlock(&allproc_lock);
655 PCPU_SET(switchtime, cpu_ticks());
656 PCPU_SET(switchticks, ticks);
658 SYSINIT(p0post, SI_SUB_INTRINSIC_POST, SI_ORDER_FIRST, proc0_post, NULL);
661 ***************************************************************************
663 **** The following SYSINIT's and glue code should be moved to the
664 **** respective files on a per subsystem basis.
666 ***************************************************************************
670 * List of paths to try when searching for "init".
672 static char init_path[MAXPATHLEN] =
674 __XSTRING(INIT_PATH);
676 "/sbin/init:/sbin/oinit:/sbin/init.bak:/rescue/init";
678 SYSCTL_STRING(_kern, OID_AUTO, init_path, CTLFLAG_RD, init_path, 0,
679 "Path used to search the init process");
682 * Shutdown timeout of init(8).
683 * Unused within kernel, but used to control init(8), hence do not remove.
685 #ifndef INIT_SHUTDOWN_TIMEOUT
686 #define INIT_SHUTDOWN_TIMEOUT 120
688 static int init_shutdown_timeout = INIT_SHUTDOWN_TIMEOUT;
689 SYSCTL_INT(_kern, OID_AUTO, init_shutdown_timeout,
690 CTLFLAG_RW, &init_shutdown_timeout, 0, "Shutdown timeout of init(8). "
691 "Unused within kernel, but used to control init(8)");
694 * Start the initial user process; try exec'ing each pathname in init_path.
695 * The program is invoked with one argument containing the boot flags.
698 start_init(void *dummy)
700 struct image_args args;
703 char *free_init_path, *tmp_init_path;
706 struct vmspace *oldvmspace;
708 TSENTER(); /* Here so we don't overlap with mi_startup. */
715 /* Wipe GELI passphrase from the environment. */
716 kern_unsetenv("kern.geom.eli.passphrase");
718 /* For Multicons, report which console is primary to both */
719 if (boothowto & RB_MULTIPLE) {
720 if (boothowto & RB_SERIAL)
721 printf("Dual Console: Serial Primary, Video Secondary\n");
723 printf("Dual Console: Video Primary, Serial Secondary\n");
726 if ((var = kern_getenv("init_path")) != NULL) {
727 strlcpy(init_path, var, sizeof(init_path));
730 free_init_path = tmp_init_path = strdup(init_path, M_TEMP);
732 while ((path = strsep(&tmp_init_path, ":")) != NULL) {
734 printf("start_init: trying %s\n", path);
736 memset(&args, 0, sizeof(args));
737 error = exec_alloc_args(&args);
739 panic("%s: Can't allocate space for init arguments %d",
742 error = exec_args_add_fname(&args, path, UIO_SYSSPACE);
744 panic("%s: Can't add fname %d", __func__, error);
745 error = exec_args_add_arg(&args, path, UIO_SYSSPACE);
747 panic("%s: Can't add argv[0] %d", __func__, error);
748 if (boothowto & RB_SINGLE)
749 error = exec_args_add_arg(&args, "-s", UIO_SYSSPACE);
751 panic("%s: Can't add argv[0] %d", __func__, error);
754 * Now try to exec the program. If can't for any reason
755 * other than it doesn't exist, complain.
757 * Otherwise, return via fork_trampoline() all the way
758 * to user mode as init!
760 KASSERT((td->td_pflags & TDP_EXECVMSPC) == 0,
762 oldvmspace = td->td_proc->p_vmspace;
763 error = kern_execve(td, &args, NULL, oldvmspace);
765 ("kern_execve returned success, not EJUSTRETURN"));
766 if (error == EJUSTRETURN) {
767 exec_cleanup(td, oldvmspace);
768 free(free_init_path, M_TEMP);
773 printf("exec %s: error %d\n", path, error);
775 free(free_init_path, M_TEMP);
776 printf("init: not found in path %s\n", init_path);
781 * Like kproc_create(), but runs in its own address space. We do this
782 * early to reserve pid 1. Note special case - do not make it
783 * runnable yet, init execution is started when userspace can be served.
786 create_init(const void *udata __unused)
789 struct ucred *newcred, *oldcred;
793 bzero(&fr, sizeof(fr));
794 fr.fr_flags = RFFDG | RFPROC | RFSTOPPED;
795 fr.fr_procp = &initproc;
796 error = fork1(&thread0, &fr);
798 panic("cannot fork init: %d\n", error);
799 KASSERT(initproc->p_pid == 1, ("create_init: initproc->p_pid != 1"));
800 /* divorce init's credentials from the kernel's */
802 sx_xlock(&proctree_lock);
804 initproc->p_flag |= P_SYSTEM | P_INMEM;
805 initproc->p_treeflag |= P_TREE_REAPER;
806 oldcred = initproc->p_ucred;
807 crcopy(newcred, oldcred);
809 mac_cred_create_init(newcred);
812 audit_cred_proc1(newcred);
814 proc_set_cred(initproc, newcred);
815 td = FIRST_THREAD_IN_PROC(initproc);
817 td->td_realucred = crcowget(initproc->p_ucred);
818 td->td_ucred = td->td_realucred;
819 PROC_UNLOCK(initproc);
820 sx_xunlock(&proctree_lock);
822 cpu_fork_kthread_handler(FIRST_THREAD_IN_PROC(initproc),
825 SYSINIT(init, SI_SUB_CREATE_INIT, SI_ORDER_FIRST, create_init, NULL);
828 * Make it runnable now.
831 kick_init(const void *udata __unused)
835 td = FIRST_THREAD_IN_PROC(initproc);
838 sched_add(td, SRQ_BORING);
840 SYSINIT(kickinit, SI_SUB_KTHREAD_INIT, SI_ORDER_MIDDLE, kick_init, NULL);