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  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  24  *      The Regents of the University of California.  All rights reserved.
  25  * (c) UNIX System Laboratories, Inc.
  26  * All or some portions of this file are derived from material licensed
  27  * to the University of California by American Telephone and Telegraph
  28  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  29  * the permission of UNIX System Laboratories, Inc.
  30  *
  31  * Redistribution and use in source and binary forms, with or without
  32  * modification, are permitted provided that the following conditions
  33  * are met:
  34  * 1. Redistributions of source code must retain the above copyright
  35  *    notice, this list of conditions and the following disclaimer.
  36  * 2. Redistributions in binary form must reproduce the above copyright
  37  *    notice, this list of conditions and the following disclaimer in the
  38  *    documentation and/or other materials provided with the distribution.
  39  * 3. All advertising materials mentioning features or use of this software
  40  *    must display the following acknowledgement:
  41  *      This product includes software developed by the University of
  42  *      California, Berkeley and its contributors.
  43  * 4. Neither the name of the University nor the names of its contributors
  44  *    may be used to endorse or promote products derived from this software
  45  *    without specific prior written permission.
  46  *
  47  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  48  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  50  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  51  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  52  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  53  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  55  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  56  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  57  * SUCH DAMAGE.
  58  *
  59  *      @(#)init_main.c 8.16 (Berkeley) 5/14/95
  60  */
  61
  62 /*
  63  *
  64  * Mach Operating System
  65  * Copyright (c) 1987 Carnegie-Mellon University
  66  * All rights reserved.  The CMU software License Agreement specifies
  67  * the terms and conditions for use and redistribution.
  68  */
  69
  70 #include <sys/param.h>
  71 #include <sys/filedesc.h>
  72 #include <sys/kernel.h>
  73 #include <sys/mount_internal.h>
  74 #include <sys/proc_internal.h>
  75 #include <sys/kauth.h>
  76 #include <sys/systm.h>
  77 #include <sys/vnode_internal.h>
  78 #include <sys/conf.h>
  79 #include <sys/buf_internal.h>
  80 #include <sys/clist.h>
  81 #include <sys/user.h>
  82 #include <sys/time.h>
  83 #include <sys/systm.h>
  84 #include <sys/mman.h>
  85
  86 #include <bsm/audit_kernel.h>
  87
  88 #include <sys/malloc.h>
  89 #include <sys/dkstat.h>
  90
  91 #include <kern/startup.h>
  92 #include <kern/thread.h>
  93 #include <kern/task.h>
  94 #include <kern/ast.h>
  95
  96 #include <mach/vm_param.h>
  97
  98 #include <vm/vm_map.h>
  99 #include <vm/vm_kern.h>
 100
 101 #include <sys/ux_exception.h>   /* for ux_exception_port */
 102
 103 #include <sys/reboot.h>
 104 #include <mach/exception_types.h>
 105 #include <dev/busvar.h>                 /* for pseudo_inits */
 106 #include <sys/kdebug.h>
 107
 108 #include <mach/mach_types.h>
 109 #include <mach/vm_prot.h>
 110 #include <mach/semaphore.h>
 111 #include <mach/sync_policy.h>
 112 #include <kern/clock.h>
 113 #include <mach/kern_return.h>
 114
 115 #include <mach/shared_memory_server.h>
 116 #include <vm/vm_shared_memory_server.h>
 117
 118 #include <net/init.h>
 119
 120 #include <machine/exec.h>
 121
 122 extern int app_profile;         /* on/off switch for pre-heat cache */
 123
 124 char    copyright[] =
 125 "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
 126 "The Regents of the University of California. "
 127 "All rights reserved.\n\n";
 128
 129 extern void     ux_handler();
 130
 131 /* Components of the first process -- never freed. */
 132 struct  proc proc0;
 133 struct  session session0;
 134 struct  pgrp pgrp0;
 135 struct  filedesc filedesc0;
 136 struct  plimit limit0;
 137 struct  pstats pstats0;
 138 struct  sigacts sigacts0;
 139 struct  proc *kernproc, *initproc;
 140
 141 long tk_cancc;
 142 long tk_nin;
 143 long tk_nout;
 144 long tk_rawcc;
 145
 146 int lock_trace = 0;
 147 /* Global variables to make pstat happy. We do swapping differently */
 148 int nswdev, nswap;
 149 int nswapmap;
 150 void *swapmap;
 151 struct swdevt swdevt[1];
 152
 153 dev_t   rootdev;                /* device of the root */
 154 dev_t   dumpdev;                /* device to take dumps on */
 155 long    dumplo;                 /* offset into dumpdev */
 156 long    hostid;
 157 char    hostname[MAXHOSTNAMELEN];
 158 int             hostnamelen;
 159 char    domainname[MAXDOMNAMELEN];
 160 int             domainnamelen;
 161 #if __i386__
 162 struct exec_archhandler exec_archhandler_ppc = {
 163         .path = "/usr/libexec/oah/translate",
 164 };
 165 #else /* __i386__ */
 166 struct exec_archhandler exec_archhandler_ppc;
 167 #endif /* __i386__ */
 168
 169 char rootdevice[16];    /* hfs device names have at least 9 chars */
 170
 171 #ifdef  KMEMSTATS
 172 struct  kmemstats kmemstats[M_LAST];
 173 #endif
 174
 175 int     lbolt;                          /* awoken once a second */
 176 struct  vnode *rootvp;
 177 int boothowto = RB_DEBUG;
 178
 179 #define BSD_PAGABLE_MAP_SIZE    (16 * 512 * 1024)
 180 vm_map_t        bsd_pageable_map;
 181 vm_map_t        mb_map;
 182 semaphore_t execve_semaphore;
 183
 184 int     cmask = CMASK;
 185 extern int customnbuf;
 186
 187 int parse_bsd_args(void);
 188 extern int bsd_hardclockinit;
 189 extern task_t bsd_init_task;
 190 extern char    init_task_failure_data[];
 191 extern void time_zone_slock_init(void);
 192 static void process_name(char *, struct proc *);
 193
 194 static void setconf(void);
 195
 196 funnel_t *kernel_flock;
 197
 198 extern void sysv_shm_lock_init(void);
 199 extern void sysv_sem_lock_init(void);
 200 extern void sysv_msg_lock_init(void);
 201 extern void pshm_lock_init();
 202 extern void psem_lock_init();
 203 extern int maxprocperuid;
 204
 205 /* kmem access not enabled by default; can be changed with boot-args */
 206 int setup_kmem = 0;
 207
 208 extern void stackshot_lock_init();
 209
 210 /*
 211  * Initialization code.
 212  * Called from cold start routine as
 213  * soon as a stack and segmentation
 214  * have been established.
 215  * Functions:
 216  *      turn on clock
 217  *      hand craft 0th process
 218  *      call all initialization routines
 219  *  hand craft 1st user process
 220  */
 221
 222 /*
 223  *      Sets the name for the given task.
 224  */
 225 static void
 226 process_name(s, p)
 227         char            *s;
 228         struct proc *p;
 229 {
 230         int             length = strlen(s);
 231
 232         bcopy(s, p->p_comm,
 233                 length >= sizeof(p->p_comm) ? sizeof(p->p_comm) :
 234                         length + 1);
 235 }
 236
 237 /* To allow these values to be patched, they're globals here */
 238 #include <machine/vmparam.h>
 239 struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ };
 240 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 241 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 242
 243 extern thread_t cloneproc(struct proc *, int);
 244 extern int      (*mountroot)(void);
 245 extern int      netboot_mountroot();    /* netboot.c */
 246 extern int      netboot_setup(struct proc * p);
 247
 248 lck_grp_t * proc_lck_grp;
 249 lck_grp_attr_t * proc_lck_grp_attr;
 250 lck_attr_t * proc_lck_attr;
 251
 252 /* hook called after root is mounted XXX temporary hack */
 253 void (*mountroot_post_hook)(void);
 254
 255 /*
 256  * This function is called very early on in the Mach startup, from the
 257  * function start_kernel_threads() in osfmk/kern/startup.c.  It's called
 258  * in the context of the current (startup) task using a call to the
 259  * function kernel_thread_create() to jump into start_kernel_threads().
 260  * Internally, kernel_thread_create() calls thread_create_internal(),
 261  * which calls uthread_alloc().  The function of uthread_alloc() is
 262  * normally to allocate a uthread structure, and fill out the uu_sigmask,
 263  * uu_act, and uu_ucred fields.  It skips filling these out in the case
 264  * of the "task" being "kernel_task", because the order of operation is
 265  * inverted.  To account for that, we need to manually fill in at least
 266  * the uu_cred field so that the uthread structure can be used like any
 267  * other.
 268  */
 269 void
 270 bsd_init()
 271 {
 272         register struct proc *p;
 273         struct uthread *ut;
 274         extern kauth_cred_t rootcred;
 275         register int i;
 276         int s;
 277         int error;
 278         thread_t        th;
 279         struct vfs_context context;
 280         void            lightning_bolt(void );
 281         kern_return_t   ret;
 282         boolean_t funnel_state;
 283         struct ucred temp_cred;
 284         extern void file_lock_init(void);
 285
 286         kernel_flock = funnel_alloc(KERNEL_FUNNEL);
 287         if (kernel_flock == (funnel_t *)0 ) {
 288                 panic("bsd_init: Failed to allocate kernel funnel");
 289         }
 290
 291         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 292
 293         printf(copyright);
 294
 295         kmeminit();
 296
 297         parse_bsd_args();
 298
 299         /* Initialize the uthread zone */
 300         //uthread_zone_init();  /* XXX redundant: previous uthread_alloc() */
 301
 302         /* Initialize kauth subsystem before instancing the first credential */
 303         kauth_init();
 304
 305         /* Initialize process and pgrp structures. */
 306         procinit();
 307
 308         kernproc = &proc0;
 309
 310         p = kernproc;
 311
 312         /* kernel_task->proc = kernproc; */
 313         set_bsdtask_info(kernel_task,(void *)p);
 314         p->p_pid = 0;
 315
 316         /* give kernproc a name */
 317         process_name("kernel_task", p);
 318
 319         /* allocate proc lock group attribute and group */
 320         proc_lck_grp_attr= lck_grp_attr_alloc_init();
 321
 322         proc_lck_grp = lck_grp_alloc_init("proc",  proc_lck_grp_attr);
 323
 324         /* Allocate proc lock attribute */
 325         proc_lck_attr = lck_attr_alloc_init();
 326
 327         lck_mtx_init(&p->p_mlock, proc_lck_grp, proc_lck_attr);
 328         lck_mtx_init(&p->p_fdmlock, proc_lck_grp, proc_lck_attr);
 329
 330         if (current_task() != kernel_task)
 331                 printf("bsd_init: We have a problem, "
 332                                 "current task is not kernel task\n");
 333
 334         ut = (uthread_t)get_bsdthread_info(current_thread());
 335
 336         /*
 337          * Create process 0.
 338          */
 339         LIST_INSERT_HEAD(&allproc, p, p_list);
 340         p->p_pgrp = &pgrp0;
 341         LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
 342         LIST_INIT(&pgrp0.pg_members);
 343         LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
 344
 345         pgrp0.pg_session = &session0;
 346         session0.s_count = 1;
 347         session0.s_leader = p;
 348
 349         p->task = kernel_task;
 350
 351         p->p_stat = SRUN;
 352         p->p_flag = P_SYSTEM;
 353         p->p_nice = NZERO;
 354         p->p_pptr = p;
 355         lockinit(&p->signal_lock, PVM, "signal", 0, 0);
 356         TAILQ_INIT(&p->p_uthlist);
 357         p->sigwait = FALSE;
 358         p->sigwait_thread = THREAD_NULL;
 359         p->exit_thread = THREAD_NULL;
 360
 361         /*
 362          * Create credential.  This also Initializes the audit information.
 363          * XXX It is not clear what the initial values should be for audit ID,
 364          * XXX session ID, etc..
 365          */
 366         bzero(&temp_cred, sizeof(temp_cred));
 367         temp_cred.cr_ngroups = 1;
 368
 369         p->p_ucred = kauth_cred_create(&temp_cred);
 370
 371         /* give the (already exisiting) initial thread a reference on it */
 372         kauth_cred_ref(p->p_ucred);
 373         ut->uu_ucred = p->p_ucred;
 374
 375         TAILQ_INIT(&p->aio_activeq);
 376         TAILQ_INIT(&p->aio_doneq);
 377         p->aio_active_count = 0;
 378         p->aio_done_count = 0;
 379
 380         file_lock_init();
 381
 382         /* Create the file descriptor table. */
 383         filedesc0.fd_refcnt = 1+1;      /* +1 so shutdown will not _FREE_ZONE */
 384         p->p_fd = &filedesc0;
 385         filedesc0.fd_cmask = cmask;
 386         filedesc0.fd_knlistsize = -1;
 387         filedesc0.fd_knlist = NULL;
 388         filedesc0.fd_knhash = NULL;
 389         filedesc0.fd_knhashmask = 0;
 390
 391         /* Create the limits structures. */
 392         p->p_limit = &limit0;
 393         for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
 394                 limit0.pl_rlimit[i].rlim_cur =
 395                         limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
 396         limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
 397         limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = maxprocperuid;
 398         limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
 399         limit0.pl_rlimit[RLIMIT_STACK] = vm_initial_limit_stack;
 400         limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
 401         limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
 402         limit0.p_refcnt = 1;
 403
 404         p->p_stats = &pstats0;
 405         p->p_sigacts = &sigacts0;
 406
 407         /*
 408          * Charge root for two  processes: init and mach_init.
 409          */
 410         (void)chgproccnt(0, 1);
 411
 412         /*
 413          *      Allocate a kernel submap for pageable memory
 414          *      for temporary copying (execve()).
 415          */
 416         {
 417                 vm_offset_t     min;
 418
 419                 ret = kmem_suballoc(kernel_map,
 420                                 &min,
 421                                 (vm_size_t)BSD_PAGABLE_MAP_SIZE,
 422                                 TRUE,
 423                                 VM_FLAGS_ANYWHERE,
 424                                 &bsd_pageable_map);
 425                 if (ret != KERN_SUCCESS)
 426                         panic("bsd_init: Failed to allocate bsd pageable map");
 427         }
 428
 429         /*
 430          * Initialize buffers and hash links for buffers
 431          *
 432          * SIDE EFFECT: Starts a thread for bcleanbuf_thread(), so must
 433          *              happen after a credential has been associated with
 434          *              the kernel task.
 435          */
 436         bsd_bufferinit();
 437
 438         /* Initialize the execve() semaphore */
 439         ret = semaphore_create(kernel_task, &execve_semaphore,
 440                         SYNC_POLICY_FIFO, (BSD_PAGABLE_MAP_SIZE / NCARGS));
 441         if (ret != KERN_SUCCESS)
 442                 panic("bsd_init: Failed to create execve semaphore");
 443
 444         /*
 445          * Initialize the calendar.
 446          */
 447         IOKitResetTime();
 448
 449         ubc_init();
 450
 451         /* Initialize the file systems. */
 452         vfsinit();
 453
 454         /* Initialize mbuf's. */
 455         mbinit();
 456
 457         /*
 458          * Initializes security event auditing.
 459          * XXX: Should/could this occur later?
 460          */
 461         audit_init();
 462
 463         /* Initialize kqueues */
 464         knote_init();
 465
 466         /* Initialize for async IO */
 467         aio_init();
 468
 469         /* Initialize pipes */
 470         pipeinit();
 471
 472         /* Initialize SysV shm subsystem locks; the subsystem proper is
 473          * initialized through a sysctl.
 474          */
 475         sysv_shm_lock_init();
 476         sysv_sem_lock_init();
 477         sysv_msg_lock_init();
 478         pshm_lock_init();
 479         psem_lock_init();
 480
 481         /* POSIX Shm and Sem */
 482         pshm_cache_init();
 483         psem_cache_init();
 484         time_zone_slock_init();
 485
 486         /* Stack snapshot facility lock */
 487         stackshot_lock_init();
 488         /*
 489          * Initialize protocols.  Block reception of incoming packets
 490          * until everything is ready.
 491          */
 492         sysctl_register_fixed();
 493         sysctl_mib_init();
 494         dlil_init();
 495         proto_kpi_init();
 496         socketinit();
 497         domaininit();
 498
 499         p->p_fd->fd_cdir = NULL;
 500         p->p_fd->fd_rdir = NULL;
 501
 502 #ifdef GPROF
 503         /* Initialize kernel profiling. */
 504         kmstartup();
 505 #endif
 506
 507         /* kick off timeout driven events by calling first time */
 508         thread_wakeup(&lbolt);
 509         timeout((void (*)(void *))lightning_bolt, 0, hz);
 510
 511         bsd_autoconf();
 512
 513         /*
 514          * We attach the loopback interface *way* down here to ensure
 515          * it happens after autoconf(), otherwise it becomes the
 516          * "primary" interface.
 517          */
 518 #include <loop.h>
 519 #if NLOOP > 0
 520         loopattach();                   /* XXX */
 521 #endif
 522
 523         /* Register the built-in dlil ethernet interface family */
 524         ether_family_init();
 525
 526         /* Call any kext code that wants to run just after network init */
 527         net_init_run();
 528
 529         vnode_pager_bootstrap();
 530 #if 0
 531         /* XXX Hack for early debug stop */
 532         printf("\nabout to sleep for 10 seconds\n");
 533         IOSleep( 10 * 1000 );
 534         /* Debugger("hello"); */
 535 #endif
 536
 537         inittodr(0);
 538
 539         /* Mount the root file system. */
 540         while( TRUE) {
 541                 int err;
 542
 543                 setconf();
 544                 bsd_hardclockinit = -1; /* start ticking */
 545
 546                 if (0 == (err = vfs_mountroot()))
 547                         break;
 548 #if NFSCLIENT
 549                 if (mountroot == netboot_mountroot) {
 550                         printf("cannot mount network root, errno = %d\n", err);
 551                         mountroot = NULL;
 552                         if (0 == (err = vfs_mountroot()))
 553                                 break;
 554                 }
 555 #endif
 556                 printf("cannot mount root, errno = %d\n", err);
 557                 boothowto |= RB_ASKNAME;
 558         }
 559
 560         context.vc_proc = p;
 561         context.vc_ucred = p->p_ucred;
 562         mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
 563
 564         /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */
 565         if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context))
 566                 panic("bsd_init: cannot find root vnode");
 567         rootvnode->v_flag |= VROOT;
 568         (void)vnode_ref(rootvnode);
 569         (void)vnode_put(rootvnode);
 570         filedesc0.fd_cdir = rootvnode;
 571
 572 #if NFSCLIENT
 573         if (mountroot == netboot_mountroot) {
 574                 int err;
 575                 /* post mount setup */
 576                 if (err = netboot_setup(p)) {
 577                         panic("bsd_init: NetBoot could not find root, %d", err);
 578                 }
 579         }
 580 #endif
 581
 582
 583         microtime(&p->p_stats->p_start);
 584         p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
 585
 586 #if DEVFS
 587         {
 588             extern void devfs_kernel_mount(char * str);
 589
 590             devfs_kernel_mount("/dev");
 591         }
 592 #endif /* DEVFS */
 593
 594         /* Initialize signal state for process 0. */
 595         siginit(p);
 596
 597         bsd_utaskbootstrap();
 598
 599 #if __i386__
 600         // this should be done after the root filesystem is mounted
 601         error = set_archhandler(p, CPU_TYPE_POWERPC);
 602         if (error)
 603                 exec_archhandler_ppc.path[0] = 0;
 604 #endif
 605
 606         /* invoke post-root-mount hook */
 607         if (mountroot_post_hook != NULL)
 608                 mountroot_post_hook();
 609
 610         (void) thread_funnel_set(kernel_flock, funnel_state);
 611 }
 612
 613 /* Called with kernel funnel held */
 614 void
 615 bsdinit_task(void)
 616 {
 617         struct proc *p = current_proc();
 618         struct uthread *ut;
 619         kern_return_t   kr;
 620         thread_t th_act;
 621         shared_region_mapping_t system_region;
 622
 623         process_name("init", p);
 624
 625         ux_handler_init();
 626
 627         th_act = current_thread();
 628         (void) host_set_exception_ports(host_priv_self(),
 629                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 630                                                          EXC_MASK_MACH_SYSCALL |
 631                                                          EXC_MASK_RPC_ALERT),
 632                                         ux_exception_port,
 633                                         EXCEPTION_DEFAULT, 0);
 634
 635         (void) task_set_exception_ports(get_threadtask(th_act),
 636                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 637                                                          EXC_MASK_MACH_SYSCALL |
 638                                                          EXC_MASK_RPC_ALERT),
 639                                         ux_exception_port,
 640                                         EXCEPTION_DEFAULT, 0);
 641
 642
 643
 644
 645         ut = (uthread_t)get_bsdthread_info(th_act);
 646
 647         bsd_hardclockinit = 1;  /* Start bsd hardclock */
 648         bsd_init_task = get_threadtask(th_act);
 649         init_task_failure_data[0] = 0;
 650         system_region = lookup_default_shared_region(ENV_DEFAULT_ROOT, cpu_type());
 651         if (system_region == NULL) {
 652                 shared_file_boot_time_init(ENV_DEFAULT_ROOT, cpu_type());
 653         } else {
 654                 vm_set_shared_region(get_threadtask(th_act), system_region);
 655         }
 656         load_init_program(p);
 657         /* turn on app-profiling i.e. pre-heating */
 658         app_profile = 1;
 659         lock_trace = 1;
 660 }
 661
 662 void
 663 lightning_bolt()
 664 {
 665         boolean_t       funnel_state;
 666         extern void klogwakeup(void);
 667
 668         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 669
 670         thread_wakeup(&lbolt);
 671         timeout(lightning_bolt,0,hz);
 672         klogwakeup();
 673
 674         (void) thread_funnel_set(kernel_flock, FALSE);
 675 }
 676
 677 bsd_autoconf()
 678 {
 679         extern kern_return_t IOKitBSDInit( void );
 680
 681         kminit();
 682
 683         /*
 684          * Early startup for bsd pseudodevices.
 685          */
 686         {
 687             struct pseudo_init *pi;
 688
 689             for (pi = pseudo_inits; pi->ps_func; pi++)
 690                 (*pi->ps_func) (pi->ps_count);
 691         }
 692
 693         return( IOKitBSDInit());
 694 }
 695
 696
 697 #include <sys/disklabel.h>  /* for MAXPARTITIONS */
 698
 699 static void
 700 setconf(void)
 701 {
 702         extern kern_return_t IOFindBSDRoot( char * rootName,
 703                                 dev_t * root, u_int32_t * flags );
 704         u_int32_t       flags;
 705         kern_return_t   err;
 706
 707         /*
 708          * calls into IOKit can generate networking registrations
 709          * which needs to be under network funnel. Right thing to do
 710          * here is to drop the funnel alltogether and regrab it afterwards
 711          */
 712         thread_funnel_set(kernel_flock, FALSE);
 713         err = IOFindBSDRoot( rootdevice, &rootdev, &flags );
 714         thread_funnel_set(kernel_flock, TRUE);
 715         if( err) {
 716                 printf("setconf: IOFindBSDRoot returned an error (%d);"
 717                         "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
 718                 rootdev = makedev( 6, 0 );
 719                 strcpy( rootdevice, "sd0a" );
 720                 flags = 0;
 721         }
 722
 723 #if NFSCLIENT
 724         if( flags & 1 ) {
 725                 /* network device */
 726                 mountroot = netboot_mountroot;
 727         } else {
 728 #endif
 729                 /* otherwise have vfs determine root filesystem */
 730                 mountroot = NULL;
 731 #if NFSCLIENT
 732         }
 733 #endif
 734
 735 }
 736
 737 bsd_utaskbootstrap()
 738 {
 739         thread_t th_act;
 740         struct uthread *ut;
 741
 742         th_act = cloneproc(kernproc, 0);
 743         initproc = pfind(1);
 744         /* Set the launch time for init */
 745         microtime(&initproc->p_stats->p_start);
 746
 747         ut = (struct uthread *)get_bsdthread_info(th_act);
 748         ut->uu_sigmask = 0;
 749         act_set_astbsd(th_act);
 750         (void) thread_resume(th_act);
 751 }
 752
 753 parse_bsd_args()
 754 {
 755         extern char init_args[];
 756         char    namep[16];
 757         extern int boothowto;
 758         extern int srv;
 759         extern int ncl;
 760
 761         int len;
 762
 763         if (PE_parse_boot_arg("-s", namep)) {
 764                 boothowto |= RB_SINGLE;
 765                 len = strlen(init_args);
 766                 if(len != 0)
 767                         strcat(init_args," -s");
 768                 else
 769                         strcat(init_args,"-s");
 770         }
 771
 772         if (PE_parse_boot_arg("-b", namep)) {
 773                 boothowto |= RB_NOBOOTRC;
 774                 len = strlen(init_args);
 775                 if(len != 0)
 776                         strcat(init_args," -b");
 777                 else
 778                         strcat(init_args,"-b");
 779         }
 780
 781         if (PE_parse_boot_arg("-F", namep)) {
 782                 len = strlen(init_args);
 783                 if(len != 0)
 784                         strcat(init_args," -F");
 785                 else
 786                         strcat(init_args,"-F");
 787         }
 788
 789         if (PE_parse_boot_arg("-v", namep)) {
 790                 len = strlen(init_args);
 791                 if(len != 0)
 792                         strcat(init_args," -v");
 793                 else
 794                         strcat(init_args,"-v");
 795         }
 796
 797         if (PE_parse_boot_arg("-x", namep)) { /* safe boot */
 798                 len = strlen(init_args);
 799                 if(len != 0)
 800                         strcat(init_args," -x");
 801                 else
 802                         strcat(init_args,"-x");
 803         }
 804
 805         if (PE_parse_boot_arg("-d", namep)) {
 806                 len = strlen(init_args);
 807                 if(len != 0)
 808                         strcat(init_args," -d");
 809                 else
 810                         strcat(init_args,"-d");
 811         }
 812
 813         PE_parse_boot_arg("srv", &srv);
 814         PE_parse_boot_arg("ncl", &ncl);
 815         if (PE_parse_boot_arg("nbuf", &max_nbuf_headers))
 816                 customnbuf = 1;
 817         PE_parse_boot_arg("kmem", &setup_kmem);
 818
 819         return 0;
 820 }
 821
 822 #if !NFSCLIENT
 823 int
 824 netboot_root(void)
 825 {
 826         return(0);
 827 }
 828 #endif