init_main.c (2a024a2b050c695d6e91e22374806cc3efaa60b2) init_main.c (74b2192ae6309fcbe617ed63389125ff0c152af2)
1/*
2 * Copyright (c) 1995 Terrence R. Lambert
3 * All rights reserved.
4 *
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

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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
39 * SUCH DAMAGE.
40 *
41 * @(#)init_main.c 8.9 (Berkeley) 1/21/94
1/*
2 * Copyright (c) 1995 Terrence R. Lambert
3 * All rights reserved.
4 *
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

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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
39 * SUCH DAMAGE.
40 *
41 * @(#)init_main.c 8.9 (Berkeley) 1/21/94
42 * $Id: init_main.c,v 1.76 1997/11/25 07:07:41 julian Exp $
42 * $Id: init_main.c,v 1.77 1997/12/06 04:11:09 sef Exp $
43 */
44
45#include "opt_devfs.h"
46
47#include <sys/param.h>
48#include <sys/file.h>
49#include <sys/filedesc.h>
50#include <sys/kernel.h>
51#include <sys/mount.h>
52#include <sys/sysctl.h>
53#include <sys/proc.h>
54#include <sys/resourcevar.h>
55#include <sys/signalvar.h>
56#include <sys/systm.h>
57#include <sys/vnode.h>
58#include <sys/sysent.h>
59#include <sys/reboot.h>
60#include <sys/sysproto.h>
61#include <sys/vmmeter.h>
43 */
44
45#include "opt_devfs.h"
46
47#include <sys/param.h>
48#include <sys/file.h>
49#include <sys/filedesc.h>
50#include <sys/kernel.h>
51#include <sys/mount.h>
52#include <sys/sysctl.h>
53#include <sys/proc.h>
54#include <sys/resourcevar.h>
55#include <sys/signalvar.h>
56#include <sys/systm.h>
57#include <sys/vnode.h>
58#include <sys/sysent.h>
59#include <sys/reboot.h>
60#include <sys/sysproto.h>
61#include <sys/vmmeter.h>
62#include <sys/unistd.h>
62
63#include <machine/cpu.h>
64
65#include <vm/vm.h>
66#include <vm/vm_param.h>
67#include <vm/vm_prot.h>
68#include <sys/lock.h>
69#include <vm/pmap.h>

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189 /*
190 * Traverse the (now) ordered list of system initialization tasks.
191 * Perform each task, and continue on to the next task.
192 *
193 * The last item on the list is expected to be the scheduler,
194 * which will not return.
195 */
196 for( sipp = (struct sysinit **)sysinit_set.ls_items; *sipp; sipp++) {
63
64#include <machine/cpu.h>
65
66#include <vm/vm.h>
67#include <vm/vm_param.h>
68#include <vm/vm_prot.h>
69#include <sys/lock.h>
70#include <vm/pmap.h>

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190 /*
191 * Traverse the (now) ordered list of system initialization tasks.
192 * Perform each task, and continue on to the next task.
193 *
194 * The last item on the list is expected to be the scheduler,
195 * which will not return.
196 */
197 for( sipp = (struct sysinit **)sysinit_set.ls_items; *sipp; sipp++) {
198
197 if( (*sipp)->subsystem == SI_SUB_DUMMY)
198 continue; /* skip dummy task(s)*/
199
200 switch( (*sipp)->type) {
201 case SI_TYPE_DEFAULT:
202 /* no special processing*/
203 (*((*sipp)->func))( (*sipp)->udata);
204 break;
205
206 case SI_TYPE_KTHREAD:
199 if( (*sipp)->subsystem == SI_SUB_DUMMY)
200 continue; /* skip dummy task(s)*/
201
202 switch( (*sipp)->type) {
203 case SI_TYPE_DEFAULT:
204 /* no special processing*/
205 (*((*sipp)->func))( (*sipp)->udata);
206 break;
207
208 case SI_TYPE_KTHREAD:
209#if !defined(SMP)
207 /* kernel thread*/
210 /* kernel thread*/
208 if (fork(&proc0, NULL))
211 if (fork1(&proc0, RFMEM|RFFDG|RFPROC))
212 panic("fork kernel thread");
213 cpu_set_fork_handler(pfind(proc0.p_retval[0]),
214 (*sipp)->func, (*sipp)->udata);
215 break;
216#endif
217
218 case SI_TYPE_KPROCESS:
219 if (fork1(&proc0, RFFDG|RFPROC))
209 panic("fork kernel process");
210 cpu_set_fork_handler(pfind(proc0.p_retval[0]),
211 (*sipp)->func, (*sipp)->udata);
212 break;
213
214 default:
215 panic( "init_main: unrecognized init type");
216 }

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502 **** 1) This code returns to startup the system; this is
503 **** abnormal for a kernel thread.
504 **** 2) This code promiscuously uses init_frame
505 ****
506 ***************************************************************************
507 */
508
509static void kthread_init __P((void *dummy));
220 panic("fork kernel process");
221 cpu_set_fork_handler(pfind(proc0.p_retval[0]),
222 (*sipp)->func, (*sipp)->udata);
223 break;
224
225 default:
226 panic( "init_main: unrecognized init type");
227 }

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513 **** 1) This code returns to startup the system; this is
514 **** abnormal for a kernel thread.
515 **** 2) This code promiscuously uses init_frame
516 ****
517 ***************************************************************************
518 */
519
520static void kthread_init __P((void *dummy));
510SYSINIT_KT(init,SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kthread_init, NULL)
521SYSINIT_KP(init,SI_SUB_KTHREAD_INIT, SI_ORDER_FIRST, kthread_init, NULL)
511
512
513extern void prepare_usermode __P((void));
514static void start_init __P((struct proc *p));
515
516/* ARGSUSED*/
517static void
518kthread_init(dummy)

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523
524extern void prepare_usermode __P((void));
525static void start_init __P((struct proc *p));
526
527/* ARGSUSED*/
528static void
529kthread_init(dummy)

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