bsd/kern/bsd_init.c

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  * (c) UNIX System Laboratories, Inc.
  29  * All or some portions of this file are derived from material licensed
  30  * to the University of California by American Telephone and Telegraph
  31  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  32  * the permission of UNIX System Laboratories, Inc.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)init_main.c 8.16 (Berkeley) 5/14/95
  63  */
  64
  65 /*
  66  *
  67  * Mach Operating System
  68  * Copyright (c) 1987 Carnegie-Mellon University
  69  * All rights reserved.  The CMU software License Agreement specifies
  70  * the terms and conditions for use and redistribution.
  71  */
  72
  73 #include <sys/param.h>
  74 #include <sys/filedesc.h>
  75 #include <sys/kernel.h>
  76 #include <sys/mount.h>
  77 #include <sys/proc.h>
  78 #include <sys/systm.h>
  79 #include <sys/vnode.h>
  80 #include <sys/conf.h>
  81 #include <sys/buf.h>
  82 #include <sys/clist.h>
  83 #include <sys/user.h>
  84 #include <sys/time.h>
  85 #include <sys/systm.h>
  86
  87 #include <sys/kern_audit.h>
  88
  89 #include <sys/malloc.h>
  90 #include <sys/dkstat.h>
  91
  92 #include <machine/spl.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 extern int app_profile;         /* on/off switch for pre-heat cache */
 120
 121 char    copyright[] =
 122 "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
 123 "The Regents of the University of California. "
 124 "All rights reserved.\n\n";
 125
 126 extern void     ux_handler();
 127
 128 /* Components of the first process -- never freed. */
 129 struct  proc proc0;
 130 struct  session session0;
 131 struct  pgrp pgrp0;
 132 struct  pcred cred0;
 133 struct  filedesc filedesc0;
 134 struct  plimit limit0;
 135 struct  pstats pstats0;
 136 struct  sigacts sigacts0;
 137 struct  proc *kernproc, *initproc;
 138
 139 long tk_cancc;
 140 long tk_nin;
 141 long tk_nout;
 142 long tk_rawcc;
 143
 144 /* Global variables to make pstat happy. We do swapping differently */
 145 int nswdev, nswap;
 146 int nswapmap;
 147 void *swapmap;
 148 struct swdevt swdevt[1];
 149
 150 dev_t   rootdev;                /* device of the root */
 151 dev_t   dumpdev;                /* device to take dumps on */
 152 long    dumplo;                 /* offset into dumpdev */
 153 long    hostid;
 154 char    hostname[MAXHOSTNAMELEN];
 155 int             hostnamelen;
 156 char    domainname[MAXDOMNAMELEN];
 157 int             domainnamelen;
 158 char    classichandler[32] = {0};
 159 long    classichandler_fsid = -1L;
 160 long    classichandler_fileid = -1L;
 161
 162 char rootdevice[16];    /* hfs device names have at least 9 chars */
 163 struct  timeval boottime;               /* GRODY!  This has to go... */
 164
 165 #ifdef  KMEMSTATS
 166 struct  kmemstats kmemstats[M_LAST];
 167 #endif
 168
 169 int     lbolt;                          /* awoken once a second */
 170 struct  vnode *rootvp;
 171 int boothowto = RB_DEBUG;
 172
 173 #define BSD_PAGABLE_MAP_SIZE    (16 * 512 * 1024)
 174 vm_map_t        bsd_pageable_map;
 175 vm_map_t        mb_map;
 176 semaphore_t execve_semaphore;
 177
 178 int     cmask = CMASK;
 179
 180 int parse_bsd_args(void);
 181 extern int bsd_hardclockinit;
 182 extern task_t bsd_init_task;
 183 extern char    init_task_failure_data[];
 184 extern void time_zone_slock_init(void);
 185
 186 funnel_t *kernel_flock;
 187 funnel_t *network_flock;
 188 int disable_funnel = 0;         /* disables split funnel */
 189 int enable_funnel = 0;          /* disables split funnel */
 190
 191 /*
 192  * Initialization code.
 193  * Called from cold start routine as
 194  * soon as a stack and segmentation
 195  * have been established.
 196  * Functions:
 197  *      turn on clock
 198  *      hand craft 0th process
 199  *      call all initialization routines
 200  *  hand craft 1st user process
 201  */
 202
 203 /*
 204  *      Sets the name for the given task.
 205  */
 206 void
 207 proc_name(s, p)
 208         char            *s;
 209         struct proc *p;
 210 {
 211         int             length = strlen(s);
 212
 213         bcopy(s, p->p_comm,
 214                 length >= sizeof(p->p_comm) ? sizeof(p->p_comm) :
 215                         length + 1);
 216 }
 217
 218 /* To allow these values to be patched, they're globals here */
 219 #include <machine/vmparam.h>
 220 struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ };
 221 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 222 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 223
 224 extern thread_t first_thread;
 225 extern thread_act_t     cloneproc(struct proc *, int);
 226 extern int      (*mountroot) __P((void));
 227 extern int      netboot_mountroot();    /* netboot.c */
 228 extern int      netboot_setup(struct proc * p);
 229
 230 /* hook called after root is mounted XXX temporary hack */
 231 void (*mountroot_post_hook)(void);
 232
 233 void
 234 bsd_init()
 235 {
 236         register struct proc *p;
 237         extern struct ucred *rootcred;
 238         register int i;
 239         int s;
 240         thread_t        th;
 241         void            lightning_bolt(void );
 242         kern_return_t   ret;
 243         boolean_t funnel_state;
 244         extern void uthread_zone_init();
 245
 246
 247         /* split funnel is enabled by default */
 248         PE_parse_boot_arg("dfnl", &disable_funnel);
 249
 250         kernel_flock = funnel_alloc(KERNEL_FUNNEL);
 251         if (kernel_flock == (funnel_t *)0 ) {
 252                 panic("bsd_init: Failed to allocate kernel funnel");
 253         }
 254
 255         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 256
 257         if (!disable_funnel) {
 258                 network_flock = funnel_alloc(NETWORK_FUNNEL);
 259                 if (network_flock == (funnel_t *)0 ) {
 260                         panic("bsd_init: Failed to allocate network funnel");
 261                 }
 262         } else {
 263                 network_flock = kernel_flock;
 264         }
 265
 266         printf(copyright);
 267
 268         kmeminit();
 269
 270         parse_bsd_args();
 271
 272         bsd_bufferinit();
 273
 274         /* Initialize the uthread zone */
 275         uthread_zone_init();
 276
 277         /*
 278          * Initialize process and pgrp structures.
 279          */
 280         procinit();
 281
 282         kernproc = &proc0;
 283
 284         p = kernproc;
 285
 286         /* kernel_task->proc = kernproc; */
 287         set_bsdtask_info(kernel_task,(void *)p);
 288         p->p_pid = 0;
 289
 290         /* give kernproc a name */
 291         proc_name("kernel_task", p);
 292
 293         if (current_task() != kernel_task)
 294                 printf("bsd_init: We have a problem, "
 295                                 "current task is not kernel task\n");
 296
 297         /*
 298          * Create process 0.
 299          */
 300         LIST_INSERT_HEAD(&allproc, p, p_list);
 301         p->p_pgrp = &pgrp0;
 302         LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
 303         LIST_INIT(&pgrp0.pg_members);
 304         LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
 305
 306         pgrp0.pg_session = &session0;
 307         session0.s_count = 1;
 308         session0.s_leader = p;
 309
 310         p->task = kernel_task;
 311
 312         p->p_stat = SRUN;
 313         p->p_flag = P_INMEM|P_SYSTEM;
 314         p->p_nice = NZERO;
 315         p->p_pptr = p;
 316         lockinit(&p->signal_lock, PVM, "signal", 0, 0);
 317         TAILQ_INIT(&p->p_uthlist);
 318         p->sigwait = FALSE;
 319         p->sigwait_thread = THREAD_NULL;
 320         p->exit_thread = THREAD_NULL;
 321
 322         /* Create credentials. */
 323         lockinit(&cred0.pc_lock, PLOCK, "proc0 cred", 0, 0);
 324         cred0.p_refcnt = 1;
 325         p->p_cred = &cred0;
 326         p->p_ucred = crget();
 327         p->p_ucred->cr_ngroups = 1;     /* group 0 */
 328
 329         TAILQ_INIT(&p->aio_activeq);
 330         TAILQ_INIT(&p->aio_doneq);
 331         p->aio_active_count = 0;
 332         p->aio_done_count = 0;
 333
 334         /* Set the audit info for this process */
 335         audit_proc_init(p);
 336
 337         /* Create the file descriptor table. */
 338         filedesc0.fd_refcnt = 1+1;      /* +1 so shutdown will not _FREE_ZONE */
 339         p->p_fd = &filedesc0;
 340         filedesc0.fd_cmask = cmask;
 341         filedesc0.fd_knlistsize = -1;
 342         filedesc0.fd_knlist = NULL;
 343         filedesc0.fd_knhash = NULL;
 344         filedesc0.fd_knhashmask = 0;
 345
 346         /* Create the limits structures. */
 347         p->p_limit = &limit0;
 348         for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
 349                 limit0.pl_rlimit[i].rlim_cur =
 350                         limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
 351         limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
 352         limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = MAXUPRC;
 353         limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
 354         limit0.pl_rlimit[RLIMIT_STACK] = vm_initial_limit_stack;
 355         limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
 356         limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
 357         limit0.p_refcnt = 1;
 358
 359         p->p_stats = &pstats0;
 360         p->p_sigacts = &sigacts0;
 361
 362         /*
 363          * Charge root for one process.
 364          */
 365         (void)chgproccnt(0, 1);
 366
 367         /*
 368          *      Allocate a kernel submap for pageable memory
 369          *      for temporary copying (execve()).
 370          */
 371         {
 372                 vm_offset_t     min;
 373
 374                 ret = kmem_suballoc(kernel_map,
 375                                 &min,
 376                                 (vm_size_t)BSD_PAGABLE_MAP_SIZE,
 377                                 TRUE,
 378                                 TRUE,
 379                                 &bsd_pageable_map);
 380                 if (ret != KERN_SUCCESS)
 381                         panic("bsd_init: Failed to allocate bsd pageable map");
 382         }
 383
 384         /* Initialize the execve() semaphore */
 385         ret = semaphore_create(kernel_task, &execve_semaphore,
 386                         SYNC_POLICY_FIFO, (BSD_PAGABLE_MAP_SIZE / NCARGS));
 387         if (ret != KERN_SUCCESS)
 388                 panic("bsd_init: Failed to create execve semaphore");
 389
 390         /*
 391          * Initialize the calendar.
 392          */
 393         IOKitResetTime();
 394
 395         ubc_init();
 396
 397         /* Initialize the file systems. */
 398         vfsinit();
 399
 400         /* Initialize mbuf's. */
 401         mbinit();
 402
 403         /* Initialize syslog */
 404         log_init();
 405
 406         /*
 407          * Initializes security event auditing.
 408          * XXX: Should/could this occur later?
 409          */
 410         audit_init();
 411
 412         /* Initialize kqueues */
 413         knote_init();
 414
 415         /* Initialize for async IO */
 416         aio_init();
 417
 418         /* POSIX Shm and Sem */
 419         pshm_cache_init();
 420         psem_cache_init();
 421         time_zone_slock_init();
 422
 423         /*
 424          * Initialize protocols.  Block reception of incoming packets
 425          * until everything is ready.
 426          */
 427         s = splimp();
 428         sysctl_register_fixed();
 429         sysctl_mib_init();
 430         dlil_init();
 431         socketinit();
 432         domaininit();
 433         splx(s);
 434
 435         p->p_fd->fd_cdir = NULL;
 436         p->p_fd->fd_rdir = NULL;
 437
 438 #ifdef GPROF
 439         /* Initialize kernel profiling. */
 440         kmstartup();
 441 #endif
 442
 443         /* kick off timeout driven events by calling first time */
 444         thread_wakeup(&lbolt);
 445         timeout((void (*)(void *))lightning_bolt, 0, hz);
 446
 447         bsd_autoconf();
 448
 449         /*
 450          * We attach the loopback interface *way* down here to ensure
 451          * it happens after autoconf(), otherwise it becomes the
 452          * "primary" interface.
 453          */
 454 #include <loop.h>
 455 #if NLOOP > 0
 456         loopattach();                   /* XXX */
 457 #endif
 458
 459         /* Register the built-in dlil ethernet interface family */
 460         ether_family_init();
 461
 462         vnode_pager_bootstrap();
 463
 464         /* Mount the root file system. */
 465         while( TRUE) {
 466                 int err;
 467
 468                 setconf();
 469                 /*
 470                  * read the time after clock_initialize_calendar()
 471                  * and before nfs mount
 472                  */
 473                 microtime((struct timeval  *)&time);
 474
 475                 bsd_hardclockinit = -1; /* start ticking */
 476
 477                 if (0 == (err = vfs_mountroot()))
 478                         break;
 479                 if (mountroot == netboot_mountroot) {
 480                         printf("cannot mount network root, errno = %d\n", err);
 481                         mountroot = NULL;
 482                         if (0 == (err = vfs_mountroot()))
 483                                 break;
 484                 }
 485                 printf("cannot mount root, errno = %d\n", err);
 486                 boothowto |= RB_ASKNAME;
 487         }
 488
 489         mountlist.cqh_first->mnt_flag |= MNT_ROOTFS;
 490
 491         /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */
 492         if (VFS_ROOT(mountlist.cqh_first, &rootvnode))
 493                 panic("bsd_init: cannot find root vnode");
 494         VREF(rootvnode);
 495         filedesc0.fd_cdir = rootvnode;
 496         VOP_UNLOCK(rootvnode, 0, p);
 497
 498         if (mountroot == netboot_mountroot) {
 499                 int err;
 500                 /* post mount setup */
 501                 if (err = netboot_setup(p)) {
 502                         panic("bsd_init: NetBoot could not find root, %d", err);
 503                 }
 504         }
 505
 506
 507         /*
 508          * Now can look at time, having had a chance to verify the time
 509          * from the file system.  Reset p->p_rtime as it may have been
 510          * munched in mi_switch() after the time got set.
 511          */
 512         p->p_stats->p_start = boottime = time;
 513         p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
 514
 515 #if DEVFS
 516         {
 517             extern void devfs_kernel_mount(char * str);
 518
 519             devfs_kernel_mount("/dev");
 520         }
 521 #endif /* DEVFS */
 522
 523         /* Initialize signal state for process 0. */
 524         siginit(p);
 525
 526         bsd_utaskbootstrap();
 527
 528         /* invoke post-root-mount hook */
 529         if (mountroot_post_hook != NULL)
 530                 mountroot_post_hook();
 531
 532         (void) thread_funnel_set(kernel_flock, funnel_state);
 533 }
 534
 535 /* Called with kernel funnel held */
 536 void
 537 bsdinit_task(void)
 538 {
 539         struct proc *p = current_proc();
 540         struct uthread *ut;
 541         kern_return_t   kr;
 542         thread_act_t th_act;
 543         shared_region_mapping_t system_region;
 544
 545         proc_name("init", p);
 546
 547         ux_handler_init();
 548
 549         th_act = current_act();
 550         (void) host_set_exception_ports(host_priv_self(),
 551                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 552                                                          EXC_MASK_MACH_SYSCALL |
 553                                                          EXC_MASK_RPC_ALERT),
 554                                         ux_exception_port,
 555                                         EXCEPTION_DEFAULT, 0);
 556
 557         (void) task_set_exception_ports(get_threadtask(th_act),
 558                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 559                                                          EXC_MASK_MACH_SYSCALL |
 560                                                          EXC_MASK_RPC_ALERT),
 561                                         ux_exception_port,
 562                                         EXCEPTION_DEFAULT, 0);
 563
 564
 565
 566
 567         ut = (uthread_t)get_bsdthread_info(th_act);
 568         ut->uu_ar0 = (void *)get_user_regs(th_act);
 569
 570         bsd_hardclockinit = 1;  /* Start bsd hardclock */
 571         bsd_init_task = get_threadtask(th_act);
 572         init_task_failure_data[0] = 0;
 573         system_region = lookup_default_shared_region(ENV_DEFAULT_ROOT,
 574                                 machine_slot[cpu_number()].cpu_type);
 575         if (system_region == NULL) {
 576                 shared_file_boot_time_init(ENV_DEFAULT_ROOT,
 577                                 machine_slot[cpu_number()].cpu_type);
 578         } else {
 579                 vm_set_shared_region(get_threadtask(th_act), system_region);
 580         }
 581         load_init_program(p);
 582         /* turn on app-profiling i.e. pre-heating */
 583         app_profile = 1;
 584 }
 585
 586 void
 587 lightning_bolt()
 588 {
 589         boolean_t       funnel_state;
 590         extern void klogwakeup(void);
 591
 592         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 593
 594         thread_wakeup(&lbolt);
 595         timeout(lightning_bolt,0,hz);
 596         klogwakeup();
 597
 598         (void) thread_funnel_set(kernel_flock, FALSE);
 599 }
 600
 601 bsd_autoconf()
 602 {
 603         extern kern_return_t IOKitBSDInit( void );
 604
 605         kminit();
 606
 607         /*
 608          * Early startup for bsd pseudodevices.
 609          */
 610         {
 611             struct pseudo_init *pi;
 612
 613             for (pi = pseudo_inits; pi->ps_func; pi++)
 614                 (*pi->ps_func) (pi->ps_count);
 615         }
 616
 617         return( IOKitBSDInit());
 618 }
 619
 620
 621 #include <sys/disklabel.h>  /* for MAXPARTITIONS */
 622
 623 setconf()
 624 {
 625         extern kern_return_t IOFindBSDRoot( char * rootName,
 626                                 dev_t * root, u_int32_t * flags );
 627         u_int32_t       flags;
 628         kern_return_t   err;
 629
 630         /*
 631          * calls into IOKit can generate networking registrations
 632          * which needs to be under network funnel. Right thing to do
 633          * here is to drop the funnel alltogether and regrab it afterwards
 634          */
 635         thread_funnel_set(kernel_flock, FALSE);
 636         err = IOFindBSDRoot( rootdevice, &rootdev, &flags );
 637         thread_funnel_set(kernel_flock, TRUE);
 638         if( err) {
 639                 printf("setconf: IOFindBSDRoot returned an error (%d);"
 640                         "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
 641                 rootdev = makedev( 6, 0 );
 642                 strcpy( rootdevice, "sd0a" );
 643                 flags = 0;
 644         }
 645
 646         if( flags & 1 ) {
 647                 /* network device */
 648                 mountroot = netboot_mountroot;
 649         } else {
 650                 /* otherwise have vfs determine root filesystem */
 651                 mountroot = NULL;
 652         }
 653
 654 }
 655
 656 bsd_utaskbootstrap()
 657 {
 658         thread_act_t th_act;
 659         struct uthread *ut;
 660
 661         th_act = cloneproc(kernproc, 0);
 662         initproc = pfind(1);
 663         /* Set the launch time for init */
 664         initproc->p_stats->p_start = time;
 665
 666         ut = (struct uthread *)get_bsdthread_info(th_act);
 667         ut->uu_sigmask = 0;
 668         act_set_astbsd(th_act);
 669         (void) thread_resume(th_act);
 670 }
 671
 672 parse_bsd_args()
 673 {
 674         extern char init_args[];
 675         char    namep[16];
 676         extern int boothowto;
 677         extern int srv;
 678         extern int ncl;
 679
 680         int len;
 681
 682         if (PE_parse_boot_arg("-s", namep)) {
 683                 boothowto |= RB_SINGLE;
 684                 len = strlen(init_args);
 685                 if(len != 0)
 686                         strcat(init_args," -s");
 687                 else
 688                         strcat(init_args,"-s");
 689         }
 690
 691         if (PE_parse_boot_arg("-b", namep)) {
 692                 boothowto |= RB_NOBOOTRC;
 693                 len = strlen(init_args);
 694                 if(len != 0)
 695                         strcat(init_args," -b");
 696                 else
 697                         strcat(init_args,"-b");
 698         }
 699
 700         if (PE_parse_boot_arg("-F", namep)) {
 701                 len = strlen(init_args);
 702                 if(len != 0)
 703                         strcat(init_args," -F");
 704                 else
 705                         strcat(init_args,"-F");
 706         }
 707
 708         if (PE_parse_boot_arg("-v", namep)) {
 709                 len = strlen(init_args);
 710                 if(len != 0)
 711                         strcat(init_args," -v");
 712                 else
 713                         strcat(init_args,"-v");
 714         }
 715
 716         if (PE_parse_boot_arg("-x", namep)) { /* safe boot */
 717                 len = strlen(init_args);
 718                 if(len != 0)
 719                         strcat(init_args," -x");
 720                 else
 721                         strcat(init_args,"-x");
 722         }
 723
 724         if (PE_parse_boot_arg("-d", namep)) {
 725                 len = strlen(init_args);
 726                 if(len != 0)
 727                         strcat(init_args," -d");
 728                 else
 729                         strcat(init_args,"-d");
 730         }
 731
 732         PE_parse_boot_arg("srv", &srv);
 733         PE_parse_boot_arg("ncl", &ncl);
 734         PE_parse_boot_arg("nbuf", &nbuf);
 735
 736         return 0;
 737 }
 738
 739 boolean_t
 740 thread_funnel_switch(
 741         int     oldfnl,
 742         int     newfnl)
 743 {
 744         boolean_t       funnel_state_prev;
 745         int curfnl;
 746         funnel_t * curflock;
 747         funnel_t * oldflock;
 748         funnel_t * newflock;
 749         funnel_t * exist_funnel;
 750         extern int disable_funnel;
 751
 752
 753                 if (disable_funnel)
 754                         return(TRUE);
 755
 756         if(oldfnl == newfnl) {
 757             panic("thread_funnel_switch: can't switch to same funnel");
 758         }
 759
 760         if ((oldfnl != NETWORK_FUNNEL) && (oldfnl != KERNEL_FUNNEL)) {
 761             panic("thread_funnel_switch: invalid oldfunnel");
 762         }
 763         if ((newfnl != NETWORK_FUNNEL) && (newfnl != KERNEL_FUNNEL)) {
 764             panic("thread_funnel_switch: invalid newfunnel");
 765         }
 766
 767         if((curflock = thread_funnel_get()) == THR_FUNNEL_NULL) {
 768             panic("thread_funnel_switch: no funnel held");
 769         }
 770
 771         if ((oldfnl == NETWORK_FUNNEL) && (curflock != network_flock))
 772             panic("thread_funnel_switch: network funnel not held");
 773
 774         if ((oldfnl == KERNEL_FUNNEL) && (curflock != kernel_flock))
 775             panic("thread_funnel_switch: kernel funnel not held");
 776
 777         if(oldfnl == NETWORK_FUNNEL) {
 778             oldflock = network_flock;
 779             newflock = kernel_flock;
 780         } else {
 781             oldflock = kernel_flock;
 782             newflock = network_flock;
 783         }
 784                 KERNEL_DEBUG(0x603242c | DBG_FUNC_NONE, oldflock, 1, 0, 0, 0);
 785         thread_funnel_set(oldflock, FALSE);
 786                 KERNEL_DEBUG(0x6032428 | DBG_FUNC_NONE, newflock, 1, 0, 0, 0);
 787         thread_funnel_set(newflock, TRUE);
 788                 KERNEL_DEBUG(0x6032434 | DBG_FUNC_NONE, newflock, 1, 0, 0, 0);
 789
 790         return(TRUE);
 791 }