init_main.c revision 1.81 1 1.81 christos /* $NetBSD: init_main.c,v 1.81 1996/02/04 02:15:09 christos Exp $ */
2 1.61 mycroft
3 1.61 mycroft /*
4 1.76 cgd * Copyright (c) 1995 Christopher G. Demetriou. All rights reserved.
5 1.61 mycroft * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
6 1.61 mycroft * The Regents of the University of California. All rights reserved.
7 1.61 mycroft * (c) UNIX System Laboratories, Inc.
8 1.61 mycroft * All or some portions of this file are derived from material licensed
9 1.61 mycroft * to the University of California by American Telephone and Telegraph
10 1.61 mycroft * Co. or Unix System Laboratories, Inc. and are reproduced herein with
11 1.61 mycroft * the permission of UNIX System Laboratories, Inc.
12 1.61 mycroft *
13 1.61 mycroft * Redistribution and use in source and binary forms, with or without
14 1.61 mycroft * modification, are permitted provided that the following conditions
15 1.61 mycroft * are met:
16 1.61 mycroft * 1. Redistributions of source code must retain the above copyright
17 1.61 mycroft * notice, this list of conditions and the following disclaimer.
18 1.61 mycroft * 2. Redistributions in binary form must reproduce the above copyright
19 1.61 mycroft * notice, this list of conditions and the following disclaimer in the
20 1.61 mycroft * documentation and/or other materials provided with the distribution.
21 1.61 mycroft * 3. All advertising materials mentioning features or use of this software
22 1.61 mycroft * must display the following acknowledgement:
23 1.61 mycroft * This product includes software developed by the University of
24 1.61 mycroft * California, Berkeley and its contributors.
25 1.61 mycroft * 4. Neither the name of the University nor the names of its contributors
26 1.61 mycroft * may be used to endorse or promote products derived from this software
27 1.61 mycroft * without specific prior written permission.
28 1.61 mycroft *
29 1.61 mycroft * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 1.61 mycroft * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 1.61 mycroft * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 1.61 mycroft * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 1.61 mycroft * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 1.61 mycroft * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 1.61 mycroft * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 1.61 mycroft * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 1.61 mycroft * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 1.61 mycroft * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 1.61 mycroft * SUCH DAMAGE.
40 1.61 mycroft *
41 1.61 mycroft * @(#)init_main.c 8.9 (Berkeley) 1/21/94
42 1.61 mycroft */
43 1.61 mycroft
44 1.61 mycroft #include <sys/param.h>
45 1.61 mycroft #include <sys/filedesc.h>
46 1.61 mycroft #include <sys/errno.h>
47 1.61 mycroft #include <sys/exec.h>
48 1.61 mycroft #include <sys/kernel.h>
49 1.61 mycroft #include <sys/mount.h>
50 1.61 mycroft #include <sys/map.h>
51 1.61 mycroft #include <sys/proc.h>
52 1.61 mycroft #include <sys/resourcevar.h>
53 1.61 mycroft #include <sys/signalvar.h>
54 1.61 mycroft #include <sys/systm.h>
55 1.61 mycroft #include <sys/vnode.h>
56 1.61 mycroft #include <sys/conf.h>
57 1.61 mycroft #include <sys/buf.h>
58 1.61 mycroft #ifdef REAL_CLISTS
59 1.61 mycroft #include <sys/clist.h>
60 1.61 mycroft #endif
61 1.61 mycroft #include <sys/device.h>
62 1.61 mycroft #include <sys/protosw.h>
63 1.61 mycroft #include <sys/reboot.h>
64 1.61 mycroft #include <sys/user.h>
65 1.61 mycroft
66 1.77 christos #include <sys/syscall.h>
67 1.68 cgd #include <sys/syscallargs.h>
68 1.68 cgd
69 1.61 mycroft #include <ufs/ufs/quota.h>
70 1.61 mycroft
71 1.61 mycroft #include <machine/cpu.h>
72 1.61 mycroft
73 1.61 mycroft #include <vm/vm.h>
74 1.81 christos #include <vm/vm_pageout.h>
75 1.81 christos
76 1.81 christos #include <kern/kern_extern.h>
77 1.81 christos
78 1.81 christos #include <net/if.h>
79 1.81 christos #include <net/raw_cb.h>
80 1.61 mycroft
81 1.61 mycroft char copyright[] =
82 1.61 mycroft "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\tThe Regents of the University of California. All rights reserved.\n\n";
83 1.61 mycroft
84 1.61 mycroft /* Components of the first process -- never freed. */
85 1.61 mycroft struct session session0;
86 1.61 mycroft struct pgrp pgrp0;
87 1.61 mycroft struct proc proc0;
88 1.61 mycroft struct pcred cred0;
89 1.61 mycroft struct filedesc0 filedesc0;
90 1.61 mycroft struct plimit limit0;
91 1.61 mycroft struct vmspace vmspace0;
92 1.61 mycroft struct proc *curproc = &proc0;
93 1.61 mycroft struct proc *initproc, *pageproc;
94 1.61 mycroft
95 1.61 mycroft int cmask = CMASK;
96 1.61 mycroft extern struct user *proc0paddr;
97 1.61 mycroft
98 1.61 mycroft struct vnode *rootvp, *swapdev_vp;
99 1.61 mycroft int boothowto;
100 1.61 mycroft struct timeval boottime;
101 1.61 mycroft struct timeval runtime;
102 1.61 mycroft
103 1.76 cgd static void start_init __P((struct proc *));
104 1.76 cgd static void start_pagedaemon __P((struct proc *));
105 1.81 christos void main __P((void *));
106 1.76 cgd
107 1.76 cgd #ifdef cpu_set_init_frame
108 1.76 cgd void *initframep; /* XXX should go away */
109 1.76 cgd #endif
110 1.61 mycroft
111 1.77 christos extern char sigcode[], esigcode[];
112 1.77 christos #ifdef SYSCALL_DEBUG
113 1.77 christos extern char *syscallnames[];
114 1.77 christos #endif
115 1.77 christos
116 1.77 christos struct emul emul_netbsd = {
117 1.77 christos "netbsd",
118 1.77 christos NULL,
119 1.77 christos sendsig,
120 1.77 christos SYS_syscall,
121 1.77 christos SYS_MAXSYSCALL,
122 1.77 christos sysent,
123 1.77 christos #ifdef SYSCALL_DEBUG
124 1.77 christos syscallnames,
125 1.77 christos #else
126 1.77 christos NULL,
127 1.77 christos #endif
128 1.77 christos 0,
129 1.77 christos copyargs,
130 1.77 christos setregs,
131 1.77 christos sigcode,
132 1.77 christos esigcode,
133 1.77 christos };
134 1.77 christos
135 1.61 mycroft /*
136 1.61 mycroft * System startup; initialize the world, create process 0, mount root
137 1.61 mycroft * filesystem, and fork to create init and pagedaemon. Most of the
138 1.61 mycroft * hard work is done in the lower-level initialization routines including
139 1.61 mycroft * startup(), which does memory initialization and autoconfiguration.
140 1.61 mycroft */
141 1.81 christos void
142 1.61 mycroft main(framep)
143 1.76 cgd void *framep; /* XXX should go away */
144 1.61 mycroft {
145 1.61 mycroft register struct proc *p;
146 1.81 christos register struct filedesc0 *fdp;
147 1.61 mycroft register struct pdevinit *pdev;
148 1.61 mycroft register int i;
149 1.68 cgd int s;
150 1.68 cgd register_t rval[2];
151 1.61 mycroft extern int (*mountroot) __P((void));
152 1.61 mycroft extern struct pdevinit pdevinit[];
153 1.61 mycroft extern void roundrobin __P((void *));
154 1.61 mycroft extern void schedcpu __P((void *));
155 1.80 thorpej extern void disk_init __P((void));
156 1.61 mycroft
157 1.61 mycroft /*
158 1.61 mycroft * Initialize the current process pointer (curproc) before
159 1.61 mycroft * any possible traps/probes to simplify trap processing.
160 1.61 mycroft */
161 1.61 mycroft p = &proc0;
162 1.61 mycroft curproc = p;
163 1.61 mycroft /*
164 1.61 mycroft * Attempt to find console and initialize
165 1.61 mycroft * in case of early panic or other messages.
166 1.61 mycroft */
167 1.61 mycroft consinit();
168 1.61 mycroft printf(copyright);
169 1.61 mycroft
170 1.61 mycroft vm_mem_init();
171 1.61 mycroft kmeminit();
172 1.80 thorpej disk_init(); /* must come before autoconfiguration */
173 1.61 mycroft cpu_startup();
174 1.61 mycroft
175 1.61 mycroft /*
176 1.63 mycroft * Initialize process and pgrp structures.
177 1.63 mycroft */
178 1.63 mycroft procinit();
179 1.63 mycroft
180 1.63 mycroft /*
181 1.61 mycroft * Create process 0 (the swapper).
182 1.61 mycroft */
183 1.63 mycroft LIST_INSERT_HEAD(&allproc, p, p_list);
184 1.61 mycroft p->p_pgrp = &pgrp0;
185 1.63 mycroft LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
186 1.63 mycroft LIST_INIT(&pgrp0.pg_members);
187 1.63 mycroft LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
188 1.63 mycroft
189 1.61 mycroft pgrp0.pg_session = &session0;
190 1.61 mycroft session0.s_count = 1;
191 1.61 mycroft session0.s_leader = p;
192 1.61 mycroft
193 1.61 mycroft p->p_flag = P_INMEM | P_SYSTEM;
194 1.61 mycroft p->p_stat = SRUN;
195 1.61 mycroft p->p_nice = NZERO;
196 1.77 christos p->p_emul = &emul_netbsd;
197 1.61 mycroft bcopy("swapper", p->p_comm, sizeof ("swapper"));
198 1.61 mycroft
199 1.61 mycroft /* Create credentials. */
200 1.61 mycroft cred0.p_refcnt = 1;
201 1.61 mycroft p->p_cred = &cred0;
202 1.61 mycroft p->p_ucred = crget();
203 1.61 mycroft p->p_ucred->cr_ngroups = 1; /* group 0 */
204 1.61 mycroft
205 1.61 mycroft /* Create the file descriptor table. */
206 1.79 mycroft p->p_fd = &filedesc0.fd_fd;
207 1.79 mycroft filedesc0.fd_fd.fd_refcnt = 1;
208 1.79 mycroft filedesc0.fd_fd.fd_cmask = cmask;
209 1.79 mycroft filedesc0.fd_fd.fd_ofiles = filedesc0.fd_dfiles;
210 1.79 mycroft filedesc0.fd_fd.fd_ofileflags = filedesc0.fd_dfileflags;
211 1.79 mycroft filedesc0.fd_fd.fd_nfiles = NDFILE;
212 1.61 mycroft
213 1.61 mycroft /* Create the limits structures. */
214 1.61 mycroft p->p_limit = &limit0;
215 1.61 mycroft for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
216 1.61 mycroft limit0.pl_rlimit[i].rlim_cur =
217 1.61 mycroft limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
218 1.61 mycroft limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
219 1.61 mycroft limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = MAXUPRC;
220 1.61 mycroft i = ptoa(cnt.v_free_count);
221 1.61 mycroft limit0.pl_rlimit[RLIMIT_RSS].rlim_max = i;
222 1.61 mycroft limit0.pl_rlimit[RLIMIT_MEMLOCK].rlim_max = i;
223 1.61 mycroft limit0.pl_rlimit[RLIMIT_MEMLOCK].rlim_cur = i / 3;
224 1.61 mycroft limit0.p_refcnt = 1;
225 1.61 mycroft
226 1.61 mycroft /* Allocate a prototype map so we have something to fork. */
227 1.61 mycroft p->p_vmspace = &vmspace0;
228 1.61 mycroft vmspace0.vm_refcnt = 1;
229 1.61 mycroft pmap_pinit(&vmspace0.vm_pmap);
230 1.61 mycroft vm_map_init(&p->p_vmspace->vm_map, round_page(VM_MIN_ADDRESS),
231 1.61 mycroft trunc_page(VM_MAX_ADDRESS), TRUE);
232 1.61 mycroft vmspace0.vm_map.pmap = &vmspace0.vm_pmap;
233 1.61 mycroft p->p_addr = proc0paddr; /* XXX */
234 1.61 mycroft
235 1.61 mycroft /*
236 1.61 mycroft * We continue to place resource usage info and signal
237 1.61 mycroft * actions in the user struct so they're pageable.
238 1.61 mycroft */
239 1.61 mycroft p->p_stats = &p->p_addr->u_stats;
240 1.61 mycroft p->p_sigacts = &p->p_addr->u_sigacts;
241 1.61 mycroft
242 1.61 mycroft /*
243 1.63 mycroft * Charge root for one process.
244 1.61 mycroft */
245 1.61 mycroft (void)chgproccnt(0, 1);
246 1.61 mycroft
247 1.61 mycroft rqinit();
248 1.61 mycroft
249 1.61 mycroft /* Configure virtual memory system, set vm rlimits. */
250 1.61 mycroft vm_init_limits(p);
251 1.61 mycroft
252 1.61 mycroft /* Initialize the file systems. */
253 1.61 mycroft vfsinit();
254 1.61 mycroft
255 1.61 mycroft /* Start real time and statistics clocks. */
256 1.61 mycroft initclocks();
257 1.61 mycroft
258 1.61 mycroft /* Initialize mbuf's. */
259 1.61 mycroft mbinit();
260 1.61 mycroft
261 1.61 mycroft #ifdef REAL_CLISTS
262 1.61 mycroft /* Initialize clists. */
263 1.61 mycroft clist_init();
264 1.61 mycroft #endif
265 1.61 mycroft
266 1.61 mycroft #ifdef SYSVSHM
267 1.61 mycroft /* Initialize System V style shared memory. */
268 1.61 mycroft shminit();
269 1.61 mycroft #endif
270 1.61 mycroft
271 1.61 mycroft #ifdef SYSVSEM
272 1.61 mycroft /* Initialize System V style semaphores. */
273 1.61 mycroft seminit();
274 1.61 mycroft #endif
275 1.61 mycroft
276 1.61 mycroft #ifdef SYSVMSG
277 1.61 mycroft /* Initialize System V style message queues. */
278 1.61 mycroft msginit();
279 1.61 mycroft #endif
280 1.61 mycroft
281 1.61 mycroft /* Attach pseudo-devices. */
282 1.61 mycroft for (pdev = pdevinit; pdev->pdev_attach != NULL; pdev++)
283 1.61 mycroft (*pdev->pdev_attach)(pdev->pdev_count);
284 1.61 mycroft
285 1.61 mycroft /*
286 1.61 mycroft * Initialize protocols. Block reception of incoming packets
287 1.61 mycroft * until everything is ready.
288 1.61 mycroft */
289 1.61 mycroft s = splimp();
290 1.61 mycroft ifinit();
291 1.61 mycroft domaininit();
292 1.61 mycroft splx(s);
293 1.61 mycroft
294 1.61 mycroft #ifdef GPROF
295 1.61 mycroft /* Initialize kernel profiling. */
296 1.61 mycroft kmstartup();
297 1.61 mycroft #endif
298 1.61 mycroft
299 1.61 mycroft /* Kick off timeout driven events by calling first time. */
300 1.61 mycroft roundrobin(NULL);
301 1.61 mycroft schedcpu(NULL);
302 1.61 mycroft
303 1.61 mycroft /* Mount the root file system. */
304 1.61 mycroft if ((*mountroot)())
305 1.61 mycroft panic("cannot mount root");
306 1.74 mycroft mountlist.cqh_first->mnt_flag |= MNT_ROOTFS;
307 1.74 mycroft mountlist.cqh_first->mnt_op->vfs_refcount++;
308 1.61 mycroft
309 1.79 mycroft /* Get the vnode for '/'. Set filedesc0.fd_fd.fd_cdir to reference it. */
310 1.74 mycroft if (VFS_ROOT(mountlist.cqh_first, &rootvnode))
311 1.61 mycroft panic("cannot find root vnode");
312 1.79 mycroft filedesc0.fd_fd.fd_cdir = rootvnode;
313 1.79 mycroft VREF(filedesc0.fd_fd.fd_cdir);
314 1.61 mycroft VOP_UNLOCK(rootvnode);
315 1.79 mycroft filedesc0.fd_fd.fd_rdir = NULL;
316 1.61 mycroft swapinit();
317 1.61 mycroft
318 1.61 mycroft /*
319 1.61 mycroft * Now can look at time, having had a chance to verify the time
320 1.61 mycroft * from the file system. Reset p->p_rtime as it may have been
321 1.61 mycroft * munched in mi_switch() after the time got set.
322 1.61 mycroft */
323 1.61 mycroft p->p_stats->p_start = runtime = mono_time = boottime = time;
324 1.61 mycroft p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
325 1.61 mycroft
326 1.61 mycroft /* Initialize signal state for process 0. */
327 1.61 mycroft siginit(p);
328 1.61 mycroft
329 1.61 mycroft /* Create process 1 (init(8)). */
330 1.78 mycroft if (sys_fork(p, NULL, rval))
331 1.61 mycroft panic("fork init");
332 1.76 cgd #ifdef cpu_set_init_frame /* XXX should go away */
333 1.61 mycroft if (rval[1]) {
334 1.76 cgd /*
335 1.76 cgd * Now in process 1.
336 1.76 cgd */
337 1.76 cgd initframep = framep;
338 1.76 cgd start_init(curproc);
339 1.61 mycroft return;
340 1.61 mycroft }
341 1.76 cgd #else
342 1.76 cgd cpu_set_kpc(pfind(1), start_init);
343 1.76 cgd #endif
344 1.61 mycroft
345 1.61 mycroft /* Create process 2 (the pageout daemon). */
346 1.78 mycroft if (sys_fork(p, NULL, rval))
347 1.61 mycroft panic("fork pager");
348 1.76 cgd #ifdef cpu_set_init_frame /* XXX should go away */
349 1.61 mycroft if (rval[1]) {
350 1.61 mycroft /*
351 1.61 mycroft * Now in process 2.
352 1.61 mycroft */
353 1.76 cgd start_pagedaemon(curproc);
354 1.61 mycroft }
355 1.76 cgd #else
356 1.76 cgd cpu_set_kpc(pfind(2), start_pagedaemon);
357 1.76 cgd #endif
358 1.61 mycroft
359 1.61 mycroft /* The scheduler is an infinite loop. */
360 1.61 mycroft scheduler();
361 1.61 mycroft /* NOTREACHED */
362 1.61 mycroft }
363 1.61 mycroft
364 1.61 mycroft /*
365 1.61 mycroft * List of paths to try when searching for "init".
366 1.61 mycroft */
367 1.61 mycroft static char *initpaths[] = {
368 1.61 mycroft "/sbin/init",
369 1.61 mycroft "/sbin/oinit",
370 1.61 mycroft "/sbin/init.bak",
371 1.61 mycroft NULL,
372 1.61 mycroft };
373 1.61 mycroft
374 1.61 mycroft /*
375 1.61 mycroft * Start the initial user process; try exec'ing each pathname in "initpaths".
376 1.61 mycroft * The program is invoked with one argument containing the boot flags.
377 1.61 mycroft */
378 1.61 mycroft static void
379 1.76 cgd start_init(p)
380 1.61 mycroft struct proc *p;
381 1.61 mycroft {
382 1.61 mycroft vm_offset_t addr;
383 1.78 mycroft struct sys_execve_args /* {
384 1.68 cgd syscallarg(char *) path;
385 1.69 cgd syscallarg(char **) argp;
386 1.69 cgd syscallarg(char **) envp;
387 1.68 cgd } */ args;
388 1.68 cgd int options, i, error;
389 1.68 cgd register_t retval[2];
390 1.66 mycroft char flags[4], *flagsp;
391 1.61 mycroft char **pathp, *path, *ucp, **uap, *arg0, *arg1;
392 1.61 mycroft
393 1.76 cgd /*
394 1.76 cgd * Now in process 1.
395 1.76 cgd */
396 1.61 mycroft initproc = p;
397 1.61 mycroft
398 1.76 cgd #ifdef cpu_set_init_frame /* XXX should go away */
399 1.61 mycroft /*
400 1.61 mycroft * We need to set the system call frame as if we were entered through
401 1.78 mycroft * a syscall() so that when we call sys_execve() below, it will be able
402 1.61 mycroft * to set the entry point (see setregs) when it tries to exec. The
403 1.61 mycroft * startup code in "locore.s" has allocated space for the frame and
404 1.61 mycroft * passed a pointer to that space as main's argument.
405 1.61 mycroft */
406 1.76 cgd cpu_set_init_frame(p, initframep);
407 1.76 cgd #endif
408 1.61 mycroft
409 1.61 mycroft /*
410 1.61 mycroft * Need just enough stack to hold the faked-up "execve()" arguments.
411 1.61 mycroft */
412 1.61 mycroft addr = USRSTACK - PAGE_SIZE;
413 1.61 mycroft if (vm_allocate(&p->p_vmspace->vm_map, &addr, (vm_size_t)PAGE_SIZE,
414 1.61 mycroft FALSE) != 0)
415 1.61 mycroft panic("init: couldn't allocate argument space");
416 1.61 mycroft p->p_vmspace->vm_maxsaddr = (caddr_t)addr;
417 1.61 mycroft
418 1.61 mycroft for (pathp = &initpaths[0]; (path = *pathp) != NULL; pathp++) {
419 1.64 mycroft ucp = (char *)(addr + PAGE_SIZE);
420 1.64 mycroft
421 1.61 mycroft /*
422 1.64 mycroft * Construct the boot flag argument.
423 1.61 mycroft */
424 1.66 mycroft flagsp = flags;
425 1.66 mycroft *flagsp++ = '-';
426 1.61 mycroft options = 0;
427 1.66 mycroft
428 1.61 mycroft if (boothowto & RB_SINGLE) {
429 1.64 mycroft *flagsp++ = 's';
430 1.61 mycroft options = 1;
431 1.61 mycroft }
432 1.61 mycroft #ifdef notyet
433 1.61 mycroft if (boothowto & RB_FASTBOOT) {
434 1.64 mycroft *flagsp++ = 'f';
435 1.61 mycroft options = 1;
436 1.61 mycroft }
437 1.61 mycroft #endif
438 1.64 mycroft
439 1.64 mycroft /*
440 1.64 mycroft * Move out the flags (arg 1), if necessary.
441 1.64 mycroft */
442 1.64 mycroft if (options != 0) {
443 1.64 mycroft *flagsp++ = '\0';
444 1.64 mycroft i = flagsp - flags;
445 1.64 mycroft #ifdef DEBUG
446 1.75 mycroft printf("init: copying out flags `%s' %d\n", flags, i);
447 1.64 mycroft #endif
448 1.64 mycroft (void)copyout((caddr_t)flags, (caddr_t)(ucp -= i), i);
449 1.64 mycroft arg1 = ucp;
450 1.64 mycroft }
451 1.61 mycroft
452 1.61 mycroft /*
453 1.61 mycroft * Move out the file name (also arg 0).
454 1.61 mycroft */
455 1.64 mycroft i = strlen(path) + 1;
456 1.64 mycroft #ifdef DEBUG
457 1.75 mycroft printf("init: copying out path `%s' %d\n", path, i);
458 1.64 mycroft #endif
459 1.64 mycroft (void)copyout((caddr_t)path, (caddr_t)(ucp -= i), i);
460 1.61 mycroft arg0 = ucp;
461 1.61 mycroft
462 1.61 mycroft /*
463 1.61 mycroft * Move out the arg pointers.
464 1.61 mycroft */
465 1.73 cgd uap = (char **)((long)ucp & ~ALIGNBYTES);
466 1.61 mycroft (void)suword((caddr_t)--uap, 0); /* terminator */
467 1.64 mycroft if (options != 0)
468 1.64 mycroft (void)suword((caddr_t)--uap, (long)arg1);
469 1.64 mycroft (void)suword((caddr_t)--uap, (long)arg0);
470 1.61 mycroft
471 1.61 mycroft /*
472 1.61 mycroft * Point at the arguments.
473 1.61 mycroft */
474 1.68 cgd SCARG(&args, path) = arg0;
475 1.68 cgd SCARG(&args, argp) = uap;
476 1.68 cgd SCARG(&args, envp) = NULL;
477 1.61 mycroft
478 1.61 mycroft /*
479 1.61 mycroft * Now try to exec the program. If can't for any reason
480 1.61 mycroft * other than it doesn't exist, complain.
481 1.61 mycroft */
482 1.78 mycroft if ((error = sys_execve(p, &args, retval)) == 0)
483 1.61 mycroft return;
484 1.61 mycroft if (error != ENOENT)
485 1.61 mycroft printf("exec %s: error %d\n", path, error);
486 1.61 mycroft }
487 1.61 mycroft printf("init: not found\n");
488 1.61 mycroft panic("no init");
489 1.76 cgd }
490 1.76 cgd
491 1.76 cgd static void
492 1.76 cgd start_pagedaemon(p)
493 1.76 cgd struct proc *p;
494 1.76 cgd {
495 1.76 cgd
496 1.76 cgd /*
497 1.76 cgd * Now in process 2.
498 1.76 cgd */
499 1.76 cgd pageproc = p;
500 1.76 cgd p->p_flag |= P_INMEM | P_SYSTEM; /* XXX */
501 1.76 cgd bcopy("pagedaemon", curproc->p_comm, sizeof ("pagedaemon"));
502 1.76 cgd vm_pageout();
503 1.76 cgd /* NOTREACHED */
504 1.61 mycroft }
505