bsd/kern/bsd_init.c

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  * (c) UNIX System Laboratories, Inc.
  27  * All or some portions of this file are derived from material licensed
  28  * to the University of California by American Telephone and Telegraph
  29  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  30  * the permission of UNIX System Laboratories, Inc.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)init_main.c 8.16 (Berkeley) 5/14/95
  61  */
  62
  63 /*
  64  *
  65  * Mach Operating System
  66  * Copyright (c) 1987 Carnegie-Mellon University
  67  * All rights reserved.  The CMU software License Agreement specifies
  68  * the terms and conditions for use and redistribution.
  69  */
  70
  71 #include <sys/param.h>
  72 #include <sys/filedesc.h>
  73 #include <sys/kernel.h>
  74 #include <sys/mount_internal.h>
  75 #include <sys/proc_internal.h>
  76 #include <sys/kauth.h>
  77 #include <sys/systm.h>
  78 #include <sys/vnode_internal.h>
  79 #include <sys/conf.h>
  80 #include <sys/buf_internal.h>
  81 #include <sys/clist.h>
  82 #include <sys/user.h>
  83 #include <sys/time.h>
  84 #include <sys/systm.h>
  85 #include <sys/mman.h>
  86
  87 #include <bsm/audit_kernel.h>
  88
  89 #include <sys/malloc.h>
  90 #include <sys/dkstat.h>
  91
  92 #include <kern/startup.h>
  93 #include <kern/thread.h>
  94 #include <kern/task.h>
  95 #include <kern/ast.h>
  96
  97 #include <mach/vm_param.h>
  98
  99 #include <vm/vm_map.h>
 100 #include <vm/vm_kern.h>
 101
 102 #include <sys/ux_exception.h>   /* for ux_exception_port */
 103
 104 #include <sys/reboot.h>
 105 #include <mach/exception_types.h>
 106 #include <dev/busvar.h>                 /* for pseudo_inits */
 107 #include <sys/kdebug.h>
 108
 109 #include <mach/mach_types.h>
 110 #include <mach/vm_prot.h>
 111 #include <mach/semaphore.h>
 112 #include <mach/sync_policy.h>
 113 #include <kern/clock.h>
 114 #include <mach/kern_return.h>
 115
 116 #include <mach/shared_memory_server.h>
 117 #include <vm/vm_shared_memory_server.h>
 118
 119 #include <net/init.h>
 120
 121 extern int app_profile;         /* on/off switch for pre-heat cache */
 122
 123 char    copyright[] =
 124 "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
 125 "The Regents of the University of California. "
 126 "All rights reserved.\n\n";
 127
 128 extern void     ux_handler();
 129
 130 /* Components of the first process -- never freed. */
 131 struct  proc proc0;
 132 struct  session session0;
 133 struct  pgrp pgrp0;
 134 struct  filedesc filedesc0;
 135 struct  plimit limit0;
 136 struct  pstats pstats0;
 137 struct  sigacts sigacts0;
 138 struct  proc *kernproc, *initproc;
 139
 140 long tk_cancc;
 141 long tk_nin;
 142 long tk_nout;
 143 long tk_rawcc;
 144
 145 int lock_trace = 0;
 146 /* Global variables to make pstat happy. We do swapping differently */
 147 int nswdev, nswap;
 148 int nswapmap;
 149 void *swapmap;
 150 struct swdevt swdevt[1];
 151
 152 dev_t   rootdev;                /* device of the root */
 153 dev_t   dumpdev;                /* device to take dumps on */
 154 long    dumplo;                 /* offset into dumpdev */
 155 long    hostid;
 156 char    hostname[MAXHOSTNAMELEN];
 157 int             hostnamelen;
 158 char    domainname[MAXDOMNAMELEN];
 159 int             domainnamelen;
 160 char    classichandler[32] = {0};
 161 uint32_t        classichandler_fsid = -1L;
 162 long    classichandler_fileid = -1L;
 163
 164 char rootdevice[16];    /* hfs device names have at least 9 chars */
 165
 166 #ifdef  KMEMSTATS
 167 struct  kmemstats kmemstats[M_LAST];
 168 #endif
 169
 170 int     lbolt;                          /* awoken once a second */
 171 struct  vnode *rootvp;
 172 int boothowto = RB_DEBUG;
 173
 174 #define BSD_PAGABLE_MAP_SIZE    (16 * 512 * 1024)
 175 vm_map_t        bsd_pageable_map;
 176 vm_map_t        mb_map;
 177 semaphore_t execve_semaphore;
 178
 179 int     cmask = CMASK;
 180
 181 int parse_bsd_args(void);
 182 extern int bsd_hardclockinit;
 183 extern task_t bsd_init_task;
 184 extern char    init_task_failure_data[];
 185 extern void time_zone_slock_init(void);
 186 static void process_name(char *, struct proc *);
 187
 188 static void setconf(void);
 189
 190 funnel_t *kernel_flock;
 191
 192 extern void sysv_shm_lock_init(void);
 193 extern void sysv_sem_lock_init(void);
 194 extern void sysv_msg_lock_init(void);
 195 extern void pshm_lock_init();
 196 extern void psem_lock_init();
 197
 198 /*
 199  * Initialization code.
 200  * Called from cold start routine as
 201  * soon as a stack and segmentation
 202  * have been established.
 203  * Functions:
 204  *      turn on clock
 205  *      hand craft 0th process
 206  *      call all initialization routines
 207  *  hand craft 1st user process
 208  */
 209
 210 /*
 211  *      Sets the name for the given task.
 212  */
 213 static void
 214 process_name(s, p)
 215         char            *s;
 216         struct proc *p;
 217 {
 218         int             length = strlen(s);
 219
 220         bcopy(s, p->p_comm,
 221                 length >= sizeof(p->p_comm) ? sizeof(p->p_comm) :
 222                         length + 1);
 223 }
 224
 225 /* To allow these values to be patched, they're globals here */
 226 #include <machine/vmparam.h>
 227 struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ };
 228 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 229 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 230
 231 extern thread_t cloneproc(struct proc *, int);
 232 extern int      (*mountroot)(void);
 233 extern int      netboot_mountroot();    /* netboot.c */
 234 extern int      netboot_setup(struct proc * p);
 235
 236 lck_grp_t * proc_lck_grp;
 237 lck_grp_attr_t * proc_lck_grp_attr;
 238 lck_attr_t * proc_lck_attr;
 239
 240 /* hook called after root is mounted XXX temporary hack */
 241 void (*mountroot_post_hook)(void);
 242
 243 /*
 244  * This function is called very early on in the Mach startup, from the
 245  * function start_kernel_threads() in osfmk/kern/startup.c.  It's called
 246  * in the context of the current (startup) task using a call to the
 247  * function kernel_thread_create() to jump into start_kernel_threads().
 248  * Internally, kernel_thread_create() calls thread_create_internal(),
 249  * which calls uthread_alloc().  The function of uthread_alloc() is
 250  * normally to allocate a uthread structure, and fill out the uu_sigmask,
 251  * uu_act, and uu_ucred fields.  It skips filling these out in the case
 252  * of the "task" being "kernel_task", because the order of operation is
 253  * inverted.  To account for that, we need to manually fill in at least
 254  * the uu_cred field so that the uthread structure can be used like any
 255  * other.
 256  */
 257 void
 258 bsd_init()
 259 {
 260         register struct proc *p;
 261         struct uthread *ut;
 262         extern kauth_cred_t rootcred;
 263         register int i;
 264         int s;
 265         thread_t        th;
 266         struct vfs_context context;
 267         void            lightning_bolt(void );
 268         kern_return_t   ret;
 269         boolean_t funnel_state;
 270         struct ucred temp_cred;
 271         extern void file_lock_init(void);
 272
 273         kernel_flock = funnel_alloc(KERNEL_FUNNEL);
 274         if (kernel_flock == (funnel_t *)0 ) {
 275                 panic("bsd_init: Failed to allocate kernel funnel");
 276         }
 277
 278         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 279
 280         printf(copyright);
 281
 282         kmeminit();
 283
 284         parse_bsd_args();
 285
 286         /* Initialize the uthread zone */
 287         //uthread_zone_init();  /* XXX redundant: previous uthread_alloc() */
 288
 289         /* Initialize kauth subsystem before instancing the first credential */
 290         kauth_init();
 291
 292         /* Initialize process and pgrp structures. */
 293         procinit();
 294
 295         kernproc = &proc0;
 296
 297         p = kernproc;
 298
 299         /* kernel_task->proc = kernproc; */
 300         set_bsdtask_info(kernel_task,(void *)p);
 301         p->p_pid = 0;
 302
 303         /* give kernproc a name */
 304         process_name("kernel_task", p);
 305
 306
 307         /* allocate proc lock group attribute and group */
 308         proc_lck_grp_attr= lck_grp_attr_alloc_init();
 309         lck_grp_attr_setstat(proc_lck_grp_attr);
 310
 311         proc_lck_grp = lck_grp_alloc_init("proc",  proc_lck_grp_attr);
 312
 313
 314         /* Allocate proc lock attribute */
 315         proc_lck_attr = lck_attr_alloc_init();
 316         //lck_attr_setdebug(proc_lck_attr);
 317
 318         lck_mtx_init(&p->p_mlock, proc_lck_grp, proc_lck_attr);
 319         lck_mtx_init(&p->p_fdmlock, proc_lck_grp, proc_lck_attr);
 320
 321         if (current_task() != kernel_task)
 322                 printf("bsd_init: We have a problem, "
 323                                 "current task is not kernel task\n");
 324
 325         ut = (uthread_t)get_bsdthread_info(current_thread());
 326
 327         /*
 328          * Create process 0.
 329          */
 330         LIST_INSERT_HEAD(&allproc, p, p_list);
 331         p->p_pgrp = &pgrp0;
 332         LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
 333         LIST_INIT(&pgrp0.pg_members);
 334         LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
 335
 336         pgrp0.pg_session = &session0;
 337         session0.s_count = 1;
 338         session0.s_leader = p;
 339
 340         p->task = kernel_task;
 341
 342         p->p_stat = SRUN;
 343         p->p_flag = P_SYSTEM;
 344         p->p_nice = NZERO;
 345         p->p_pptr = p;
 346         lockinit(&p->signal_lock, PVM, "signal", 0, 0);
 347         TAILQ_INIT(&p->p_uthlist);
 348         p->sigwait = FALSE;
 349         p->sigwait_thread = THREAD_NULL;
 350         p->exit_thread = THREAD_NULL;
 351
 352         /*
 353          * Create credential.  This also Initializes the audit information.
 354          * XXX It is not clear what the initial values should be for audit ID,
 355          * XXX session ID, etc..
 356          */
 357         bzero(&temp_cred, sizeof(temp_cred));
 358         temp_cred.cr_ngroups = 1;
 359
 360         p->p_ucred = kauth_cred_create(&temp_cred);
 361
 362         /* give the (already exisiting) initial thread a reference on it */
 363         kauth_cred_ref(p->p_ucred);
 364         ut->uu_ucred = p->p_ucred;
 365
 366         TAILQ_INIT(&p->aio_activeq);
 367         TAILQ_INIT(&p->aio_doneq);
 368         p->aio_active_count = 0;
 369         p->aio_done_count = 0;
 370
 371         file_lock_init();
 372
 373         /* Create the file descriptor table. */
 374         filedesc0.fd_refcnt = 1+1;      /* +1 so shutdown will not _FREE_ZONE */
 375         p->p_fd = &filedesc0;
 376         filedesc0.fd_cmask = cmask;
 377         filedesc0.fd_knlistsize = -1;
 378         filedesc0.fd_knlist = NULL;
 379         filedesc0.fd_knhash = NULL;
 380         filedesc0.fd_knhashmask = 0;
 381
 382         /* Create the limits structures. */
 383         p->p_limit = &limit0;
 384         for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
 385                 limit0.pl_rlimit[i].rlim_cur =
 386                         limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
 387         limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
 388         limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = MAXUPRC;
 389         limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
 390         limit0.pl_rlimit[RLIMIT_STACK] = vm_initial_limit_stack;
 391         limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
 392         limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
 393         limit0.p_refcnt = 1;
 394
 395         p->p_stats = &pstats0;
 396         p->p_sigacts = &sigacts0;
 397
 398         /*
 399          * Charge root for two  processes: init and mach_init.
 400          */
 401         (void)chgproccnt(0, 1);
 402
 403         /*
 404          *      Allocate a kernel submap for pageable memory
 405          *      for temporary copying (execve()).
 406          */
 407         {
 408                 vm_offset_t     min;
 409
 410                 ret = kmem_suballoc(kernel_map,
 411                                 &min,
 412                                 (vm_size_t)BSD_PAGABLE_MAP_SIZE,
 413                                 TRUE,
 414                                 VM_FLAGS_ANYWHERE,
 415                                 &bsd_pageable_map);
 416                 if (ret != KERN_SUCCESS)
 417                         panic("bsd_init: Failed to allocate bsd pageable map");
 418         }
 419
 420         /*
 421          * Initialize buffers and hash links for buffers
 422          *
 423          * SIDE EFFECT: Starts a thread for bcleanbuf_thread(), so must
 424          *              happen after a credential has been associated with
 425          *              the kernel task.
 426          */
 427         bsd_bufferinit();
 428
 429         /* Initialize the execve() semaphore */
 430         ret = semaphore_create(kernel_task, &execve_semaphore,
 431                         SYNC_POLICY_FIFO, (BSD_PAGABLE_MAP_SIZE / NCARGS));
 432         if (ret != KERN_SUCCESS)
 433                 panic("bsd_init: Failed to create execve semaphore");
 434
 435         /*
 436          * Initialize the calendar.
 437          */
 438         IOKitResetTime();
 439
 440         ubc_init();
 441
 442         /* Initialize the file systems. */
 443         vfsinit();
 444
 445         /* Initialize mbuf's. */
 446         mbinit();
 447
 448         /*
 449          * Initializes security event auditing.
 450          * XXX: Should/could this occur later?
 451          */
 452         audit_init();
 453
 454         /* Initialize kqueues */
 455         knote_init();
 456
 457         /* Initialize for async IO */
 458         aio_init();
 459
 460         /* Initialize pipes */
 461         pipeinit();
 462
 463         /* Initialize SysV shm subsystem locks; the subsystem proper is
 464          * initialized through a sysctl.
 465          */
 466         sysv_shm_lock_init();
 467         sysv_sem_lock_init();
 468         sysv_msg_lock_init();
 469         pshm_lock_init();
 470         psem_lock_init();
 471
 472         /* POSIX Shm and Sem */
 473         pshm_cache_init();
 474         psem_cache_init();
 475         time_zone_slock_init();
 476
 477         /*
 478          * Initialize protocols.  Block reception of incoming packets
 479          * until everything is ready.
 480          */
 481         sysctl_register_fixed();
 482         sysctl_mib_init();
 483         dlil_init();
 484         proto_kpi_init();
 485         socketinit();
 486         domaininit();
 487
 488         p->p_fd->fd_cdir = NULL;
 489         p->p_fd->fd_rdir = NULL;
 490
 491 #ifdef GPROF
 492         /* Initialize kernel profiling. */
 493         kmstartup();
 494 #endif
 495
 496         /* kick off timeout driven events by calling first time */
 497         thread_wakeup(&lbolt);
 498         timeout((void (*)(void *))lightning_bolt, 0, hz);
 499
 500         bsd_autoconf();
 501
 502         /*
 503          * We attach the loopback interface *way* down here to ensure
 504          * it happens after autoconf(), otherwise it becomes the
 505          * "primary" interface.
 506          */
 507 #include <loop.h>
 508 #if NLOOP > 0
 509         loopattach();                   /* XXX */
 510 #endif
 511
 512         /* Register the built-in dlil ethernet interface family */
 513         ether_family_init();
 514
 515         /* Call any kext code that wants to run just after network init */
 516         net_init_run();
 517
 518         vnode_pager_bootstrap();
 519 #if 0
 520         /* XXX Hack for early debug stop */
 521         printf("\nabout to sleep for 10 seconds\n");
 522         IOSleep( 10 * 1000 );
 523         /* Debugger("hello"); */
 524 #endif
 525
 526         inittodr(0);
 527
 528         /* Mount the root file system. */
 529         while( TRUE) {
 530                 int err;
 531
 532                 setconf();
 533                 bsd_hardclockinit = -1; /* start ticking */
 534
 535                 if (0 == (err = vfs_mountroot()))
 536                         break;
 537 #if NFSCLIENT
 538                 if (mountroot == netboot_mountroot) {
 539                         printf("cannot mount network root, errno = %d\n", err);
 540                         mountroot = NULL;
 541                         if (0 == (err = vfs_mountroot()))
 542                                 break;
 543                 }
 544 #endif
 545                 printf("cannot mount root, errno = %d\n", err);
 546                 boothowto |= RB_ASKNAME;
 547         }
 548
 549         context.vc_proc = p;
 550         context.vc_ucred = p->p_ucred;
 551         mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
 552
 553         /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */
 554         if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context))
 555                 panic("bsd_init: cannot find root vnode");
 556         rootvnode->v_flag |= VROOT;
 557         (void)vnode_ref(rootvnode);
 558         (void)vnode_put(rootvnode);
 559         filedesc0.fd_cdir = rootvnode;
 560
 561 #if NFSCLIENT
 562         if (mountroot == netboot_mountroot) {
 563                 int err;
 564                 /* post mount setup */
 565                 if (err = netboot_setup(p)) {
 566                         panic("bsd_init: NetBoot could not find root, %d", err);
 567                 }
 568         }
 569 #endif
 570
 571
 572         microtime(&p->p_stats->p_start);
 573         p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
 574
 575 #if DEVFS
 576         {
 577             extern void devfs_kernel_mount(char * str);
 578
 579             devfs_kernel_mount("/dev");
 580         }
 581 #endif /* DEVFS */
 582
 583         /* Initialize signal state for process 0. */
 584         siginit(p);
 585
 586         bsd_utaskbootstrap();
 587
 588         /* invoke post-root-mount hook */
 589         if (mountroot_post_hook != NULL)
 590                 mountroot_post_hook();
 591
 592         (void) thread_funnel_set(kernel_flock, funnel_state);
 593 }
 594
 595 /* Called with kernel funnel held */
 596 void
 597 bsdinit_task(void)
 598 {
 599         struct proc *p = current_proc();
 600         struct uthread *ut;
 601         kern_return_t   kr;
 602         thread_t th_act;
 603         shared_region_mapping_t system_region;
 604
 605         process_name("init", p);
 606
 607         ux_handler_init();
 608
 609         th_act = current_thread();
 610         (void) host_set_exception_ports(host_priv_self(),
 611                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 612                                                          EXC_MASK_MACH_SYSCALL |
 613                                                          EXC_MASK_RPC_ALERT),
 614                                         ux_exception_port,
 615                                         EXCEPTION_DEFAULT, 0);
 616
 617         (void) task_set_exception_ports(get_threadtask(th_act),
 618                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 619                                                          EXC_MASK_MACH_SYSCALL |
 620                                                          EXC_MASK_RPC_ALERT),
 621                                         ux_exception_port,
 622                                         EXCEPTION_DEFAULT, 0);
 623
 624
 625
 626
 627         ut = (uthread_t)get_bsdthread_info(th_act);
 628         ut->uu_ar0 = (void *)get_user_regs(th_act);
 629
 630         bsd_hardclockinit = 1;  /* Start bsd hardclock */
 631         bsd_init_task = get_threadtask(th_act);
 632         init_task_failure_data[0] = 0;
 633         system_region = lookup_default_shared_region(ENV_DEFAULT_ROOT, cpu_type());
 634         if (system_region == NULL) {
 635                 shared_file_boot_time_init(ENV_DEFAULT_ROOT, cpu_type());
 636         } else {
 637                 vm_set_shared_region(get_threadtask(th_act), system_region);
 638         }
 639         load_init_program(p);
 640         /* turn on app-profiling i.e. pre-heating */
 641         app_profile = 1;
 642         lock_trace = 1;
 643 }
 644
 645 void
 646 lightning_bolt()
 647 {
 648         boolean_t       funnel_state;
 649         extern void klogwakeup(void);
 650
 651         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 652
 653         thread_wakeup(&lbolt);
 654         timeout(lightning_bolt,0,hz);
 655         klogwakeup();
 656
 657         (void) thread_funnel_set(kernel_flock, FALSE);
 658 }
 659
 660 bsd_autoconf()
 661 {
 662         extern kern_return_t IOKitBSDInit( void );
 663
 664         kminit();
 665
 666         /*
 667          * Early startup for bsd pseudodevices.
 668          */
 669         {
 670             struct pseudo_init *pi;
 671
 672             for (pi = pseudo_inits; pi->ps_func; pi++)
 673                 (*pi->ps_func) (pi->ps_count);
 674         }
 675
 676         return( IOKitBSDInit());
 677 }
 678
 679
 680 #include <sys/disklabel.h>  /* for MAXPARTITIONS */
 681
 682 static void
 683 setconf(void)
 684 {
 685         extern kern_return_t IOFindBSDRoot( char * rootName,
 686                                 dev_t * root, u_int32_t * flags );
 687         u_int32_t       flags;
 688         kern_return_t   err;
 689
 690         /*
 691          * calls into IOKit can generate networking registrations
 692          * which needs to be under network funnel. Right thing to do
 693          * here is to drop the funnel alltogether and regrab it afterwards
 694          */
 695         thread_funnel_set(kernel_flock, FALSE);
 696         err = IOFindBSDRoot( rootdevice, &rootdev, &flags );
 697         thread_funnel_set(kernel_flock, TRUE);
 698         if( err) {
 699                 printf("setconf: IOFindBSDRoot returned an error (%d);"
 700                         "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
 701                 rootdev = makedev( 6, 0 );
 702                 strcpy( rootdevice, "sd0a" );
 703                 flags = 0;
 704         }
 705
 706 #if NFSCLIENT
 707         if( flags & 1 ) {
 708                 /* network device */
 709                 mountroot = netboot_mountroot;
 710         } else {
 711 #endif
 712                 /* otherwise have vfs determine root filesystem */
 713                 mountroot = NULL;
 714 #if NFSCLIENT
 715         }
 716 #endif
 717
 718 }
 719
 720 bsd_utaskbootstrap()
 721 {
 722         thread_t th_act;
 723         struct uthread *ut;
 724
 725         th_act = cloneproc(kernproc, 0);
 726         initproc = pfind(1);
 727         /* Set the launch time for init */
 728         microtime(&initproc->p_stats->p_start);
 729
 730         ut = (struct uthread *)get_bsdthread_info(th_act);
 731         ut->uu_sigmask = 0;
 732         act_set_astbsd(th_act);
 733         (void) thread_resume(th_act);
 734 }
 735
 736 parse_bsd_args()
 737 {
 738         extern char init_args[];
 739         char    namep[16];
 740         extern int boothowto;
 741         extern int srv;
 742         extern int ncl;
 743
 744         int len;
 745
 746         if (PE_parse_boot_arg("-s", namep)) {
 747                 boothowto |= RB_SINGLE;
 748                 len = strlen(init_args);
 749                 if(len != 0)
 750                         strcat(init_args," -s");
 751                 else
 752                         strcat(init_args,"-s");
 753         }
 754
 755         if (PE_parse_boot_arg("-b", namep)) {
 756                 boothowto |= RB_NOBOOTRC;
 757                 len = strlen(init_args);
 758                 if(len != 0)
 759                         strcat(init_args," -b");
 760                 else
 761                         strcat(init_args,"-b");
 762         }
 763
 764         if (PE_parse_boot_arg("-F", namep)) {
 765                 len = strlen(init_args);
 766                 if(len != 0)
 767                         strcat(init_args," -F");
 768                 else
 769                         strcat(init_args,"-F");
 770         }
 771
 772         if (PE_parse_boot_arg("-v", namep)) {
 773                 len = strlen(init_args);
 774                 if(len != 0)
 775                         strcat(init_args," -v");
 776                 else
 777                         strcat(init_args,"-v");
 778         }
 779
 780         if (PE_parse_boot_arg("-x", namep)) { /* safe boot */
 781                 len = strlen(init_args);
 782                 if(len != 0)
 783                         strcat(init_args," -x");
 784                 else
 785                         strcat(init_args,"-x");
 786         }
 787
 788         if (PE_parse_boot_arg("-d", namep)) {
 789                 len = strlen(init_args);
 790                 if(len != 0)
 791                         strcat(init_args," -d");
 792                 else
 793                         strcat(init_args,"-d");
 794         }
 795
 796         PE_parse_boot_arg("srv", &srv);
 797         PE_parse_boot_arg("ncl", &ncl);
 798         PE_parse_boot_arg("nbuf", &nbuf);
 799
 800         return 0;
 801 }
 802
 803 #if !NFSCLIENT
 804 int
 805 netboot_root(void)
 806 {
 807         return(0);
 808 }
 809 #endif