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Annotation of src/sys/kern/init_main.c, Revision 1.512

1.512   ! ad          1: /*     $NetBSD: init_main.c,v 1.511 2019/12/21 13:00:24 ad Exp $       */
1.347     ad          2:
                      3: /*-
1.507     ad          4:  * Copyright (c) 2008, 2009, 2019 The NetBSD Foundation, Inc.
1.347     ad          5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  *
                     16:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     17:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     18:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     19:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     20:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     21:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     22:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     23:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     24:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     25:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     26:  * POSSIBILITY OF SUCH DAMAGE.
                     27:  */
1.61      mycroft    28:
                     29: /*
                     30:  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
                     31:  *     The Regents of the University of California.  All rights reserved.
                     32:  * (c) UNIX System Laboratories, Inc.
                     33:  * All or some portions of this file are derived from material licensed
                     34:  * to the University of California by American Telephone and Telegraph
                     35:  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
                     36:  * the permission of UNIX System Laboratories, Inc.
                     37:  *
                     38:  * Redistribution and use in source and binary forms, with or without
                     39:  * modification, are permitted provided that the following conditions
                     40:  * are met:
                     41:  * 1. Redistributions of source code must retain the above copyright
                     42:  *    notice, this list of conditions and the following disclaimer.
                     43:  * 2. Redistributions in binary form must reproduce the above copyright
                     44:  *    notice, this list of conditions and the following disclaimer in the
                     45:  *    documentation and/or other materials provided with the distribution.
1.224     agc        46:  * 3. 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:  * Copyright (c) 1995 Christopher G. Demetriou.  All rights reserved.
                     67:  *
                     68:  * Redistribution and use in source and binary forms, with or without
                     69:  * modification, are permitted provided that the following conditions
                     70:  * are met:
                     71:  * 1. Redistributions of source code must retain the above copyright
                     72:  *    notice, this list of conditions and the following disclaimer.
                     73:  * 2. Redistributions in binary form must reproduce the above copyright
                     74:  *    notice, this list of conditions and the following disclaimer in the
                     75:  *    documentation and/or other materials provided with the distribution.
1.61      mycroft    76:  * 3. All advertising materials mentioning features or use of this software
                     77:  *    must display the following acknowledgement:
                     78:  *     This product includes software developed by the University of
                     79:  *     California, Berkeley and its contributors.
                     80:  * 4. Neither the name of the University nor the names of its contributors
                     81:  *    may be used to endorse or promote products derived from this software
                     82:  *    without specific prior written permission.
                     83:  *
                     84:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     85:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     86:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     87:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     88:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     89:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     90:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     91:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     92:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     93:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     94:  * SUCH DAMAGE.
                     95:  *
1.118     fvdl       96:  *     @(#)init_main.c 8.16 (Berkeley) 5/14/95
1.61      mycroft    97:  */
1.196     lukem      98:
                     99: #include <sys/cdefs.h>
1.512   ! ad        100: __KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.511 2019/12/21 13:00:24 ad Exp $");
1.115     mrg       101:
1.370     tsutsui   102: #include "opt_ddb.h"
1.475     ozaki-r   103: #include "opt_inet.h"
1.223     jonathan  104: #include "opt_ipsec.h"
1.382     apb       105: #include "opt_modular.h"
1.267     kardel    106: #include "opt_ntp.h"
1.198     jdolecek  107: #include "opt_pipe.h"
1.172     soren     108: #include "opt_syscall_debug.h"
1.267     kardel    109: #include "opt_sysv.h"
1.292     ad        110: #include "opt_fileassoc.h"
                    111: #include "opt_ktrace.h"
1.281     elad      112: #include "opt_pax.h"
1.380     christos  113: #include "opt_compat_netbsd.h"
1.361     simonb    114: #include "opt_wapbl.h"
1.404     elad      115: #include "opt_ptrace.h"
1.458     tls       116: #include "opt_rnd_printf.h"
1.465     nat       117: #include "opt_splash.h"
1.489     pgoyette  118: #include "opt_kernhist.h"
1.495     maxv      119: #include "opt_gprof.h"
1.465     nat       120:
1.470     uebayasi  121: #if defined(SPLASHSCREEN) && defined(makeoptions_SPLASHSCREEN_IMAGE)
1.465     nat       122: extern void *_binary_splash_image_start;
                    123: extern void *_binary_splash_image_end;
                    124: #endif
1.61      mycroft   125:
1.377     he        126: #include "ksyms.h"
1.441     tls       127:
1.276     dogcow    128: #include "veriexec.h"
1.106     explorer  129:
1.61      mycroft   130: #include <sys/param.h>
1.164     enami     131: #include <sys/acct.h>
1.61      mycroft   132: #include <sys/filedesc.h>
1.131     thorpej   133: #include <sys/file.h>
1.61      mycroft   134: #include <sys/errno.h>
1.162     thorpej   135: #include <sys/callout.h>
1.302     yamt      136: #include <sys/cpu.h>
1.436     jruoho    137: #include <sys/cpufreq.h>
1.408     dyoung    138: #include <sys/spldebug.h>
1.61      mycroft   139: #include <sys/kernel.h>
                    140: #include <sys/mount.h>
                    141: #include <sys/proc.h>
1.136     thorpej   142: #include <sys/kthread.h>
1.61      mycroft   143: #include <sys/resourcevar.h>
                    144: #include <sys/signalvar.h>
                    145: #include <sys/systm.h>
                    146: #include <sys/vnode.h>
1.288     hannken   147: #include <sys/fstrans.h>
1.87      thorpej   148: #include <sys/tty.h>
1.61      mycroft   149: #include <sys/conf.h>
1.95      thorpej   150: #include <sys/disklabel.h>
1.61      mycroft   151: #include <sys/buf.h>
                    152: #include <sys/device.h>
1.186     jdolecek  153: #include <sys/exec.h>
1.128     thorpej   154: #include <sys/socketvar.h>
1.61      mycroft   155: #include <sys/protosw.h>
1.338     yamt      156: #include <sys/percpu.h>
1.434     christos  157: #include <sys/pserialize.h>
1.342     rmind     158: #include <sys/pset.h>
1.338     yamt      159: #include <sys/sysctl.h>
1.61      mycroft   160: #include <sys/reboot.h>
1.209     jdolecek  161: #include <sys/event.h>
1.227     jonathan  162: #include <sys/mbuf.h>
1.302     yamt      163: #include <sys/sched.h>
1.292     ad        164: #include <sys/sleepq.h>
1.455     rmind     165: #include <sys/ipi.h>
1.284     ad        166: #include <sys/iostat.h>
1.304     yamt      167: #include <sys/vmem.h>
1.307     ad        168: #include <sys/uuid.h>
                    169: #include <sys/extent.h>
1.309     ad        170: #include <sys/disk.h>
1.325     ad        171: #include <sys/msgbuf.h>
1.340     ad        172: #include <sys/module.h>
1.509     pgoyette  173: #include <sys/module_hook.h>
1.343     ad        174: #include <sys/event.h>
1.357     ad        175: #include <sys/lockf.h>
1.364     pooka     176: #include <sys/once.h>
1.435     rmind     177: #include <sys/kcpuset.h>
1.367     ad        178: #include <sys/ksyms.h>
1.365     pooka     179: #include <sys/uidinfo.h>
1.379     pooka     180: #include <sys/kprintf.h>
1.485     pgoyette  181: #include <sys/bufq.h>
1.501     thorpej   182: #include <sys/threadpool.h>
1.449     christos  183: #ifdef IPSEC
1.223     jonathan  184: #include <netipsec/ipsec.h>
                    185: #endif
1.82      christos  186: #include <sys/domain.h>
1.94      mouse     187: #include <sys/namei.h>
1.103     explorer  188: #include <sys/rnd.h>
1.192     jdolecek  189: #include <sys/pipe.h>
1.273     elad      190: #if NVERIEXEC > 0
1.245     blymn     191: #include <sys/verified_exec.h>
1.273     elad      192: #endif /* NVERIEXEC > 0 */
1.292     ad        193: #ifdef KTRACE
                    194: #include <sys/ktrace.h>
                    195: #endif
1.266     elad      196: #include <sys/kauth.h>
1.252     skrll     197: #include <net80211/ieee80211_netbsd.h>
1.437     tls       198: #include <sys/cprng.h>
1.504     ozaki-r   199: #include <sys/psref.h>
1.510     ad        200: #include <sys/radixtree.h>
1.61      mycroft   201:
1.77      christos  202: #include <sys/syscall.h>
1.68      cgd       203: #include <sys/syscallargs.h>
                    204:
1.281     elad      205: #include <sys/pax.h>
1.334     elad      206:
1.438     jym       207: #include <secmodel/secmodel.h>
                    208:
1.61      mycroft   209: #include <ufs/ufs/quota.h>
                    210:
1.159     fvdl      211: #include <miscfs/genfs/genfs.h>
1.410     elad      212: #include <miscfs/specfs/specdev.h>
1.159     fvdl      213:
1.323     ad        214: #include <sys/cpu.h>
1.61      mycroft   215:
1.425     uebayasi  216: #include <uvm/uvm.h>   /* extern struct uvm uvm */
1.114     mrg       217:
1.202     lukem     218: #include <dev/cons.h>
1.465     nat       219: #include <dev/splash/splash.h>
1.310     xtraeme   220:
1.414     pooka     221: #include <net/bpf.h>
1.81      christos  222: #include <net/if.h>
1.490     ryo       223: #include <net/pfil.h>
1.81      christos  224: #include <net/raw_cb.h>
1.468     ozaki-r   225: #include <net/if_llatbl.h>
1.61      mycroft   226:
1.399     pooka     227: #include <prop/proplib.h>
                    228:
1.398     pooka     229: #include <sys/userconf.h>
                    230:
1.251     junyoung  231: extern struct lwp lwp0;
1.311     pooka     232: extern time_t rootfstime;
1.251     junyoung  233:
1.216     thorpej   234: #ifndef curlwp
                    235: struct lwp *curlwp = &lwp0;
1.133     pk        236: #endif
1.105     mycroft   237: struct proc *initproc;
1.61      mycroft   238:
                    239: struct vnode *rootvp, *swapdev_vp;
                    240: int    boothowto;
1.494     msaitoh   241: int    cold __read_mostly = 1;         /* still working on startup */
1.380     christos  242: struct timespec boottime;              /* time at system startup - will only follow settime deltas */
1.61      mycroft   243:
1.356     ad        244: int    start_init_exec;                /* semaphore for start_init() */
1.163     thorpej   245:
1.437     tls       246: cprng_strong_t *kern_cprng;
                    247:
1.260     christos  248: static void check_console(struct lwp *l);
1.176     thorpej   249: static void start_init(void *);
1.398     pooka     250: static void configure(void);
                    251: static void configure2(void);
1.421     tsutsui   252: static void configure3(void);
1.176     thorpej   253: void main(void);
1.280     christos  254:
1.61      mycroft   255: /*
                    256:  * System startup; initialize the world, create process 0, mount root
                    257:  * filesystem, and fork to create init and pagedaemon.  Most of the
                    258:  * hard work is done in the lower-level initialization routines including
                    259:  * startup(), which does memory initialization and autoconfiguration.
                    260:  */
1.81      christos  261: void
1.176     thorpej   262: main(void)
1.61      mycroft   263: {
1.380     christos  264:        struct timespec time;
1.216     thorpej   265:        struct lwp *l;
1.144     thorpej   266:        struct proc *p;
1.204     thorpej   267:        int s, error;
1.175     jdolecek  268: #ifdef NVNODE_IMPLICIT
                    269:        int usevnodes;
                    270: #endif
1.312     ad        271:        CPU_INFO_ITERATOR cii;
                    272:        struct cpu_info *ci;
1.61      mycroft   273:
1.493     chs       274: #ifdef DIAGNOSTIC
                    275:        /*
                    276:         * Verify that CPU_INFO_FOREACH() knows about the boot CPU
                    277:         * and only the boot CPU at this point.
                    278:         */
                    279:        int cpucount = 0;
                    280:        for (CPU_INFO_FOREACH(cii, ci)) {
                    281:                KASSERT(ci == curcpu());
                    282:                cpucount++;
                    283:        }
                    284:        KASSERT(cpucount == 1);
                    285: #endif
                    286:
1.216     thorpej   287:        l = &lwp0;
1.327     matt      288: #ifndef LWP0_CPU_INFO
1.216     thorpej   289:        l->l_cpu = curcpu();
1.327     matt      290: #endif
1.394     yamt      291:        l->l_pflag |= LP_RUNNING;
1.233     junyoung  292:
1.317     ad        293:        /*
1.61      mycroft   294:         * Attempt to find console and initialize
                    295:         * in case of early panic or other messages.
                    296:         */
                    297:        consinit();
                    298:
1.321     ad        299:        kernel_lock_init();
1.364     pooka     300:        once_init();
1.434     christos  301:
1.440     rmind     302:        mi_cpu_init();
1.423     pgoyette  303:        kernconfig_lock_init();
1.429     rmind     304:        kthread_sysinit();
1.179     thorpej   305:
1.397     pooka     306:        /* Initialize the device switch tables. */
                    307:        devsw_init();
                    308:
1.432     rmind     309:        /* Initialize event counters. */
                    310:        evcnt_init();
                    311:
1.114     mrg       312:        uvm_init();
1.457     riastrad  313:        ubchist_init();
1.435     rmind     314:        kcpuset_sysinit();
1.127     thorpej   315:
1.399     pooka     316:        prop_kern_init();
                    317:
1.377     he        318: #if ((NKSYMS > 0) || (NDDB > 0) || (NMODULAR > 0))
1.376     martin    319:        ksyms_init();
1.377     he        320: #endif
1.379     pooka     321:        kprintf_init();
1.376     martin    322:
1.338     yamt      323:        percpu_init();
                    324:
1.347     ad        325:        /* Initialize lock caches. */
                    326:        mutex_obj_init();
1.389     ad        327:        rw_obj_init();
1.347     ad        328:
1.434     christos  329:        /* Passive serialization. */
                    330:        pserialize_init();
                    331:
1.307     ad        332:        /* Initialize the extent manager. */
                    333:        extent_init();
                    334:
1.145     thorpej   335:        /* Do machine-dependent initialization. */
                    336:        cpu_startup();
1.162     thorpej   337:
1.378     pooka     338:        /* Initialize the sysctl subsystem. */
                    339:        sysctl_init();
                    340:
1.307     ad        341:        /* Initialize callouts, part 1. */
1.166     enami     342:        callout_startup();
1.145     thorpej   343:
1.409     elad      344:        /* Initialize the kernel authorization subsystem. */
                    345:        kauth_init();
                    346:
1.438     jym       347:        secmodel_init();
                    348:
1.409     elad      349:        spec_init();
                    350:
1.414     pooka     351:        /*
                    352:         * Set BPF op vector.  Can't do this in bpf attach, since
                    353:         * network drivers attach before bpf.
                    354:         */
                    355:        bpf_setops();
                    356:
1.403     elad      357:        /* Start module system. */
1.417     pooka     358:        module_init();
1.509     pgoyette  359:        module_hook_init();
1.403     elad      360:
1.291     elad      361:        /*
                    362:         * Initialize the kernel authorization subsystem and start the
                    363:         * default security model, if any. We need to do this early
                    364:         * enough so that subsystems relying on any of the aforementioned
                    365:         * can work properly. Since the security model may dictate the
                    366:         * credential inheritance policy, it is needed at least before
                    367:         * any process is created, specifically proc0.
                    368:         */
1.403     elad      369:        module_init_class(MODULE_CLASS_SECMODEL);
1.290     elad      370:
1.228     pk        371:        /* Initialize the buffer cache */
                    372:        bufinit();
1.488     pgoyette  373:        biohist_init();
1.228     pk        374:
1.489     pgoyette  375: #ifdef KERNHIST
                    376:        sysctl_kernhist_init();
                    377: #endif
                    378:
1.465     nat       379:
                    380: #if defined(SPLASHSCREEN) && defined(SPLASHSCREEN_IMAGE)
                    381:        size_t splash_size = (&_binary_splash_image_end -
                    382:            &_binary_splash_image_start) * sizeof(void *);
                    383:        splash_setimage(&_binary_splash_image_start, splash_size);
                    384: #endif
                    385:
1.128     thorpej   386:        /* Initialize sockets. */
                    387:        soinit();
1.127     thorpej   388:
1.156     thorpej   389:        /*
1.212     thorpej   390:         * The following things must be done before autoconfiguration.
1.156     thorpej   391:         */
1.437     tls       392:        rnd_init();             /* initialize entropy pool */
                    393:
                    394:        cprng_init();           /* initialize cryptographic PRNG */
1.176     thorpej   395:
1.236     simonb    396:        /* Initialize process and pgrp structures. */
1.63      mycroft   397:        procinit();
1.279     thorpej   398:        lwpinit();
1.210     thorpej   399:
1.504     ozaki-r   400:        /* Must be called after lwpinit (lwpinit_specificdata) */
                    401:        psref_init();
                    402:
1.251     junyoung  403:        /* Initialize signal-related data structures. */
                    404:        signal_init();
1.61      mycroft   405:
1.333     ad        406:        /* Initialize resource management. */
                    407:        resource_init();
                    408:
1.407     rmind     409:        /* Create process 0. */
1.251     junyoung  410:        proc0_init();
1.420     pooka     411:        lwp0_init();
1.61      mycroft   412:
1.383     yamt      413:        /* Disable preemption during boot. */
                    414:        kpreempt_disable();
                    415:
1.501     thorpej   416:        /* Initialize the threadpool system. */
                    417:        threadpools_init();
                    418:
1.307     ad        419:        /* Initialize the UID hash table. */
                    420:        uid_init();
                    421:
                    422:        /* Charge root for one process. */
1.61      mycroft   423:        (void)chgproccnt(0, 1);
                    424:
1.330     ad        425:        /* Initialize timekeeping. */
                    426:        time_init();
                    427:
1.292     ad        428:        /* Initialize the run queues, turnstiles and sleep queues. */
1.302     yamt      429:        sched_rqinit();
1.292     ad        430:        turnstile_init();
                    431:        sleeptab_init(&sleeptab);
                    432:
1.405     elad      433:        sched_init();
                    434:
1.339     rmind     435:        /* Initialize processor-sets */
                    436:        psets_init();
                    437:
1.436     jruoho    438:        /* Initialize cpufreq(9) */
                    439:        cpufreq_init();
                    440:
1.302     yamt      441:        /* MI initialization of the boot cpu */
                    442:        error = mi_cpu_attach(curcpu());
                    443:        KASSERT(error == 0);
                    444:
1.350     ad        445:        /* Initialize timekeeping, part 2. */
                    446:        time_init2();
                    447:
1.338     yamt      448:        /*
                    449:         * Initialize mbuf's.  Do this now because we might attempt to
                    450:         * allocate mbufs or mbuf clusters during autoconfiguration.
                    451:         */
                    452:        mbinit();
                    453:
1.284     ad        454:        /* Initialize I/O statistics. */
                    455:        iostat_init();
                    456:
1.325     ad        457:        /* Initialize the log device. */
                    458:        loginit();
                    459:
1.403     elad      460:        /* Second part of module system initialization. */
1.422     pgoyette  461:        module_start_unload_thread();
1.355     ad        462:
1.61      mycroft   463:        /* Initialize the file systems. */
1.194     matt      464: #ifdef NVNODE_IMPLICIT
                    465:        /*
                    466:         * If maximum number of vnodes in namei vnode cache is not explicitly
                    467:         * defined in kernel config, adjust the number such as we use roughly
1.359     ad        468:         * 10% of memory for vnodes and associated data structures in the
                    469:         * assumed worst case.  Do not provide fewer than NVNODE vnodes.
1.194     matt      470:         */
1.448     para      471:        usevnodes = calc_cache_size(vmem_size(kmem_arena, VMEM_FREE|VMEM_ALLOC),
                    472:            10, VNODE_KMEM_MAXPCT) / VNODE_COST;
1.205     sommerfe  473:        if (usevnodes > desiredvnodes)
1.194     matt      474:                desiredvnodes = usevnodes;
                    475: #endif
1.61      mycroft   476:
1.288     hannken   477:        /* Initialize fstrans. */
                    478:        fstrans_init();
1.267     kardel    479:
1.510     ad        480:        radix_tree_init(); /* used for page cache */
1.503     hannken   481:        vfsinit();
                    482:        lf_init();
                    483:
1.319     ad        484:        /* Initialize the file descriptor system. */
1.343     ad        485:        fd_sys_init();
1.319     ad        486:
1.375     pooka     487:        /* Initialize cwd structures */
                    488:        cwd_sys_init();
                    489:
1.344     ad        490:        /* Initialize kqueue. */
1.343     ad        491:        kqueue_init();
1.307     ad        492:
1.268     kardel    493:        inittimecounter();
1.267     kardel    494:        ntp_init();
                    495:
1.326     ad        496:        /* Initialize tty subsystem. */
                    497:        tty_init();
                    498:        ttyldisc_init();
                    499:
1.336     ad        500:        /* Initialize the buffer cache, part 2. */
                    501:        bufinit2();
                    502:
1.309     ad        503:        /* Initialize the disk wedge subsystem. */
                    504:        dkwedge_init();
                    505:
1.437     tls       506:        /* Initialize the kernel strong PRNG. */
                    507:        kern_cprng = cprng_strong_create("kernel", IPL_VM,
                    508:                                         CPRNG_INIT_ANY|CPRNG_REKEY_ANY);
1.458     tls       509:
1.490     ryo       510:        /* Initialize pfil */
                    511:        pfil_init();
                    512:
1.360     yamt      513:        /* Initialize interfaces. */
                    514:        ifinit1();
                    515:
1.408     dyoung    516:        spldebug_start();
                    517:
1.433     bouyer    518:        /* Initialize sockets thread(s) */
                    519:        soinit1();
                    520:
1.486     pgoyette  521:        /*
1.487     pgoyette  522:         * Initialize the bufq strategy sub-system and any built-in
                    523:         * strategy modules - they may be needed by some devices during
                    524:         * auto-configuration
1.486     pgoyette  525:         */
1.487     pgoyette  526:        bufq_init();
1.486     pgoyette  527:        module_init_class(MODULE_CLASS_BUFQ);
                    528:
1.156     thorpej   529:        /* Configure the system hardware.  This will enable interrupts. */
                    530:        configure();
1.61      mycroft   531:
1.459     riastrad  532:        /* Once all CPUs are detected, initialize the per-CPU cprng_fast.  */
                    533:        cprng_fast_init();
                    534:
1.381     christos  535:        ssp_init();
                    536:
1.424     eeh       537:        ubc_init();             /* must be after autoconfig */
                    538:
1.432     rmind     539:        mm_init();
                    540:
1.381     christos  541:        configure2();
1.456     rmind     542:
                    543:        ipi_sysinit();
                    544:
1.383     yamt      545:        /* Now timer is working.  Enable preemption. */
                    546:        kpreempt_enable();
                    547:
1.461     uebayasi  548:        /* Get the threads going and into any sleeps before continuing. */
                    549:        yield();
                    550:
1.453     riastrad  551:        /* Enable deferred processing of RNG samples */
                    552:        rnd_init_softint();
                    553:
1.458     tls       554: #ifdef RND_PRINTF
                    555:        /* Enable periodic injection of console output into entropy pool */
                    556:        kprintf_init_callout();
                    557: #endif
                    558:
1.418     cegger    559:        vmem_rehash_start();    /* must be before exec_init */
                    560:
                    561:        /* Initialize exec structures */
                    562:        exec_init(1);           /* seminit calls exithook_establish() */
                    563:
1.273     elad      564: #if NVERIEXEC > 0
1.283     elad      565:        /*
                    566:         * Initialise the Veriexec subsystem.
                    567:         */
                    568:        veriexec_init();
1.273     elad      569: #endif /* NVERIEXEC > 0 */
1.251     junyoung  570:
1.281     elad      571:        pax_init();
                    572:
1.449     christos  573: #ifdef IPSEC
1.223     jonathan  574:        /* Attach network crypto subsystem */
                    575:        ipsec_attach();
                    576: #endif
1.61      mycroft   577:
                    578:        /*
                    579:         * Initialize protocols.  Block reception of incoming packets
                    580:         * until everything is ready.
                    581:         */
1.190     thorpej   582:        s = splnet();
1.61      mycroft   583:        ifinit();
1.475     ozaki-r   584: #if defined(INET) || defined(INET6)
1.468     ozaki-r   585:        lltableinit();
1.469     ozaki-r   586: #endif
1.390     pooka     587:        domaininit(true);
1.498     ozaki-r   588:        ifinit_post();
1.200     itojun    589:        if_attachdomain();
1.61      mycroft   590:        splx(s);
                    591:
                    592: #ifdef GPROF
                    593:        /* Initialize kernel profiling. */
                    594:        kmstartup();
                    595: #endif
1.164     enami     596:
1.351     sborrill  597:        /* Initialize system accounting. */
1.164     enami     598:        acct_init();
1.61      mycroft   599:
1.301     ad        600: #ifndef PIPE_SOCKETPAIR
1.300     ad        601:        /* Initialize pipes. */
                    602:        pipe_init();
1.301     ad        603: #endif
1.300     ad        604:
1.292     ad        605: #ifdef KTRACE
                    606:        /* Initialize ktrace. */
                    607:        ktrinit();
                    608: #endif
                    609:
1.406     elad      610:        machdep_init();
                    611:
1.427     pooka     612:        procinit_sysctl();
                    613:
1.472     mrg       614:        scdebug_init();
                    615:
1.163     thorpej   616:        /*
                    617:         * Create process 1 (init(8)).  We do this now, as Unix has
                    618:         * historically had init be process 1, and changing this would
                    619:         * probably upset a lot of people.
                    620:         *
                    621:         * Note that process 1 won't immediately exec init(8), but will
                    622:         * wait for us to inform it that the root file system has been
                    623:         * mounted.
                    624:         */
1.497     kamil     625:        if (fork1(l, 0, SIGCHLD, NULL, 0, start_init, NULL, NULL))
1.163     thorpej   626:                panic("fork init");
                    627:
                    628:        /*
1.502     kamil     629:         * The initproc variable cannot be initialized in start_init as there
                    630:         * is a race between vfs_mountroot and start_init.
                    631:         */
                    632:        mutex_enter(proc_lock);
                    633:        initproc = proc_find_raw(1);
                    634:        mutex_exit(proc_lock);
                    635:
                    636:        /*
1.340     ad        637:         * Load any remaining builtin modules, and hand back temporary
1.422     pgoyette  638:         * storage to the VM system.  Then require force when loading any
                    639:         * remaining un-init'ed built-in modules to avoid later surprises.
1.340     ad        640:         */
                    641:        module_init_class(MODULE_CLASS_ANY);
1.422     pgoyette  642:        module_builtin_require_force();
1.340     ad        643:
                    644:        /*
1.208     thorpej   645:         * Finalize configuration now that all real devices have been
                    646:         * found.  This needs to be done before the root device is
                    647:         * selected, since finalization may create the root device.
                    648:         */
                    649:        config_finalize();
1.163     thorpej   650:
1.400     pooka     651:        sysctl_finalize();
                    652:
1.163     thorpej   653:        /*
                    654:         * Now that autoconfiguration has completed, we can determine
                    655:         * the root and dump devices.
                    656:         */
1.445     mlelstv   657:        cpu_rootconf();
1.101     thorpej   658:        cpu_dumpconf();
1.61      mycroft   659:
                    660:        /* Mount the root file system. */
1.95      thorpej   661:        do {
1.416     pooka     662:                domountroothook(root_device);
1.95      thorpej   663:                if ((error = vfs_mountroot())) {
1.97      thorpej   664:                        printf("cannot mount root, error = %d\n", error);
1.95      thorpej   665:                        boothowto |= RB_ASKNAME;
                    666:                        setroot(root_device,
1.152     thorpej   667:                            (rootdev != NODEV) ? DISKPART(rootdev) : 0);
1.95      thorpej   668:                }
                    669:        } while (error != 0);
                    670:        mountroothook_destroy();
                    671:
1.421     tsutsui   672:        configure3();
                    673:
1.239     pk        674:        /*
                    675:         * Initialise the time-of-day clock, passing the time recorded
                    676:         * in the root filesystem (if any) for use by systems that
                    677:         * don't have a non-volatile time-of-day device.
                    678:         */
                    679:        inittodr(rootfstime);
                    680:
1.61      mycroft   681:        /*
                    682:         * Now can look at time, having had a chance to verify the time
1.292     ad        683:         * from the file system.  Reset l->l_rtime as it may have been
1.61      mycroft   684:         * munched in mi_switch() after the time got set.
                    685:         */
1.380     christos  686:        getnanotime(&time);
1.500     kre       687:        {
                    688:                struct timespec ut;
                    689:                /*
                    690:                 * was:
                    691:                 *      boottime = time;
                    692:                 * but we can do better
                    693:                 */
                    694:                nanouptime(&ut);
                    695:                timespecsub(&time, &ut, &boottime);
                    696:        }
1.447     pgoyette  697:
1.352     ad        698:        mutex_enter(proc_lock);
1.225     jdolecek  699:        LIST_FOREACH(p, &allproc, p_list) {
1.295     pavel     700:                KASSERT((p->p_flag & PK_MARKER) == 0);
1.353     ad        701:                mutex_enter(p->p_lock);
1.380     christos  702:                TIMESPEC_TO_TIMEVAL(&p->p_stats->p_start, &time);
1.225     jdolecek  703:                LIST_FOREACH(l, &p->p_lwps, l_sibling) {
1.292     ad        704:                        lwp_lock(l);
1.332     yamt      705:                        memset(&l->l_rtime, 0, sizeof(l->l_rtime));
1.292     ad        706:                        lwp_unlock(l);
1.225     jdolecek  707:                }
1.353     ad        708:                mutex_exit(p->p_lock);
1.163     thorpej   709:        }
1.352     ad        710:        mutex_exit(proc_lock);
1.332     yamt      711:        binuptime(&curlwp->l_stime);
1.61      mycroft   712:
1.312     ad        713:        for (CPU_INFO_FOREACH(cii, ci)) {
                    714:                ci->ci_schedstate.spc_lastmod = time_second;
                    715:        }
                    716:
1.163     thorpej   717:        /* Create the pageout daemon kernel thread. */
                    718:        uvm_swap_init();
1.336     ad        719:        if (kthread_create(PRI_PGDAEMON, KTHREAD_MPSAFE, NULL, uvm_pageout,
1.307     ad        720:            NULL, NULL, "pgdaemon"))
1.135     thorpej   721:                panic("fork pagedaemon");
1.61      mycroft   722:
1.163     thorpej   723:        /* Create the filesystem syncer kernel thread. */
1.336     ad        724:        if (kthread_create(PRI_IOFLUSH, KTHREAD_MPSAFE, NULL, sched_sync,
                    725:            NULL, NULL, "ioflush"))
1.159     fvdl      726:                panic("fork syncer");
1.185     chs       727:
                    728:        /* Create the aiodone daemon kernel thread. */
1.286     yamt      729:        if (workqueue_create(&uvm.aiodone_queue, "aiodoned",
1.336     ad        730:            uvm_aiodone_worker, NULL, PRI_VM, IPL_NONE, WQ_MPSAFE))
1.185     chs       731:                panic("fork aiodoned");
1.137     thorpej   732:
1.462     mrg       733:        /* Wait for final configure threads to complete. */
                    734:        config_finalize_mountroot();
                    735:
1.163     thorpej   736:        /*
                    737:         * Okay, now we can let init(8) exec!  It's off to userland!
                    738:         */
1.356     ad        739:        mutex_enter(proc_lock);
1.163     thorpej   740:        start_init_exec = 1;
1.356     ad        741:        cv_broadcast(&lbolt);
                    742:        mutex_exit(proc_lock);
1.163     thorpej   743:
1.61      mycroft   744:        /* The scheduler is an infinite loop. */
1.114     mrg       745:        uvm_scheduler();
1.61      mycroft   746:        /* NOTREACHED */
                    747: }
                    748:
1.398     pooka     749: /*
                    750:  * Configure the system's hardware.
                    751:  */
                    752: static void
                    753: configure(void)
                    754: {
                    755:
                    756:        /* Initialize autoconf data structures. */
1.401     pooka     757:        config_init_mi();
1.398     pooka     758:        /*
                    759:         * XXX
                    760:         * callout_setfunc() requires mutex(9) so it can't be in config_init()
                    761:         * on amiga and atari which use config_init() and autoconf(9) fucntions
                    762:         * to initialize console devices.
                    763:         */
                    764:        config_twiddle_init();
                    765:
                    766:        pmf_init();
                    767:
1.471     jmcneill  768:        /* Initialize driver modules */
                    769:        module_init_class(MODULE_CLASS_DRIVER);
                    770:
1.430     uebayasi  771:        userconf_init();
1.398     pooka     772:        if (boothowto & RB_USERCONF)
1.430     uebayasi  773:                userconf_prompt();
1.398     pooka     774:
                    775:        if ((boothowto & (AB_SILENT|AB_VERBOSE)) == AB_SILENT) {
                    776:                printf_nolog("Detecting hardware...");
                    777:        }
                    778:
                    779:        /*
                    780:         * Do the machine-dependent portion of autoconfiguration.  This
                    781:         * sets the configuration machinery here in motion by "finding"
                    782:         * the root bus.  When this function returns, we expect interrupts
                    783:         * to be enabled.
                    784:         */
                    785:        cpu_configure();
                    786: }
                    787:
                    788: static void
                    789: configure2(void)
                    790: {
                    791:        CPU_INFO_ITERATOR cii;
                    792:        struct cpu_info *ci;
                    793:        int s;
                    794:
1.508     ad        795:        /* Fix up CPU topology info, which has all been collected by now. */
                    796:        cpu_topology_init();
                    797:
1.398     pooka     798:        /*
                    799:         * Now that we've found all the hardware, start the real time
                    800:         * and statistics clocks.
                    801:         */
                    802:        initclocks();
                    803:
                    804:        cold = 0;       /* clocks are running, we're warm now! */
                    805:        s = splsched();
                    806:        curcpu()->ci_schedstate.spc_flags |= SPCF_RUNNING;
                    807:        splx(s);
                    808:
1.507     ad        809:        /* Setup the runqueues and scheduler. */
                    810:        runq_init();
                    811:        synch_init();
                    812:
1.398     pooka     813:        /* Boot the secondary processors. */
                    814:        for (CPU_INFO_FOREACH(cii, ci)) {
                    815:                uvm_cpu_attach(ci);
                    816:        }
                    817:        mp_online = true;
                    818: #if defined(MULTIPROCESSOR)
                    819:        cpu_boot_secondary_processors();
                    820: #endif
                    821:
                    822:        /*
                    823:         * Bus scans can make it appear as if the system has paused, so
                    824:         * twiddle constantly while config_interrupts() jobs are running.
                    825:         */
                    826:        config_twiddle_fn(NULL);
                    827:
                    828:        /*
                    829:         * Create threads to call back and finish configuration for
                    830:         * devices that want interrupts enabled.
                    831:         */
                    832:        config_create_interruptthreads();
                    833: }
                    834:
1.93      mouse     835: static void
1.421     tsutsui   836: configure3(void)
                    837: {
                    838:
                    839:        /*
                    840:         * Create threads to call back and finish configuration for
                    841:         * devices that want the mounted root file system.
                    842:         */
                    843:        config_create_mountrootthreads();
                    844:
                    845:        /* Get the threads going and into any sleeps before continuing. */
                    846:        yield();
                    847: }
                    848:
                    849: static void
1.443     mlelstv   850: rootconf_handle_wedges(void)
                    851: {
1.477     christos  852:        struct disklabel label;
1.443     mlelstv   853:        struct partition *p;
                    854:        struct vnode *vp;
                    855:        daddr_t startblk;
                    856:        uint64_t nblks;
1.482     msaitoh   857:        device_t dev;
1.443     mlelstv   858:        int error;
                    859:
                    860:        if (booted_nblks) {
                    861:                /*
                    862:                 * bootloader passed geometry
                    863:                 */
                    864:                dev      = booted_device;
                    865:                startblk = booted_startblk;
                    866:                nblks    = booted_nblks;
                    867:
                    868:                /*
                    869:                 * keep booted_device and booted_partition
                    870:                 * in case the kernel doesn't identify a wedge
                    871:                 */
                    872:        } else {
                    873:                /*
                    874:                 * bootloader passed partition number
                    875:                 *
                    876:                 * We cannot ask the partition device directly when it is
                    877:                 * covered by a wedge. Instead we look up the geometry in
                    878:                 * the disklabel.
                    879:                 */
                    880:                vp = opendisk(booted_device);
1.444     martin    881:
                    882:                if (vp == NULL)
                    883:                        return;
                    884:
1.477     christos  885:                error = VOP_IOCTL(vp, DIOCGDINFO, &label, FREAD, NOCRED);
1.443     mlelstv   886:                VOP_CLOSE(vp, FREAD, NOCRED);
                    887:                vput(vp);
                    888:                if (error)
                    889:                        return;
                    890:
                    891:                KASSERT(booted_partition >= 0
                    892:                        && booted_partition < MAXPARTITIONS);
                    893:
1.477     christos  894:                p = &label.d_partitions[booted_partition];
1.443     mlelstv   895:
                    896:                dev      = booted_device;
                    897:                startblk = p->p_offset;
                    898:                nblks    = p->p_size;
                    899:        }
                    900:
                    901:        dev = dkwedge_find_partition(dev, startblk, nblks);
                    902:        if (dev != NULL) {
                    903:                booted_device = dev;
                    904:                booted_partition = 0;
                    905:        }
                    906: }
                    907:
1.445     mlelstv   908: void
1.443     mlelstv   909: rootconf(void)
                    910: {
1.445     mlelstv   911:        if (booted_device != NULL)
                    912:                rootconf_handle_wedges();
1.443     mlelstv   913:
                    914:        setroot(booted_device, booted_partition);
                    915: }
                    916:
                    917: static void
1.260     christos  918: check_console(struct lwp *l)
1.93      mouse     919: {
1.391     dholland  920:        struct vnode *vp;
1.93      mouse     921:        int error;
                    922:
1.391     dholland  923:        error = namei_simple_kernel("/dev/console",
                    924:                                NSM_FOLLOW_NOEMULROOT, &vp);
1.499     martin    925:        if (error == 0) {
1.391     dholland  926:                vrele(vp);
1.499     martin    927:        } else if (error == ENOENT) {
                    928:                if (boothowto & (AB_VERBOSE|AB_DEBUG))
                    929:                        printf("warning: no /dev/console\n");
                    930:        } else {
1.96      cgd       931:                printf("warning: lookup /dev/console: error %d\n", error);
1.499     martin    932:        }
1.93      mouse     933: }
                    934:
1.61      mycroft   935: /*
                    936:  * List of paths to try when searching for "init".
                    937:  */
1.327     matt      938: static const char * const initpaths[] = {
1.61      mycroft   939:        "/sbin/init",
                    940:        "/sbin/oinit",
                    941:        "/sbin/init.bak",
1.454     apb       942:        "/rescue/init",
1.61      mycroft   943:        NULL,
                    944: };
                    945:
                    946: /*
                    947:  * Start the initial user process; try exec'ing each pathname in "initpaths".
                    948:  * The program is invoked with one argument containing the boot flags.
                    949:  */
                    950: static void
1.176     thorpej   951: start_init(void *arg)
1.61      mycroft   952: {
1.216     thorpej   953:        struct lwp *l = arg;
                    954:        struct proc *p = l->l_proc;
1.130     eeh       955:        vaddr_t addr;
1.78      mycroft   956:        struct sys_execve_args /* {
1.108     mycroft   957:                syscallarg(const char *) path;
1.92      cgd       958:                syscallarg(char * const *) argp;
                    959:                syscallarg(char * const *) envp;
1.68      cgd       960:        } */ args;
                    961:        int options, i, error;
                    962:        register_t retval[2];
1.66      mycroft   963:        char flags[4], *flagsp;
1.202     lukem     964:        const char *path, *slash;
1.474     christos  965:        char *ucp, **uap, *arg0, *arg1, *argv[3];
1.202     lukem     966:        char ipath[129];
                    967:        int ipx, len;
1.61      mycroft   968:
1.76      cgd       969:        /*
                    970:         * Now in process 1.
                    971:         */
1.146     gwr       972:        strncpy(p->p_comm, "init", MAXCOMLEN);
1.163     thorpej   973:
                    974:        /*
                    975:         * Wait for main() to tell us that it's safe to exec.
                    976:         */
1.356     ad        977:        mutex_enter(proc_lock);
1.163     thorpej   978:        while (start_init_exec == 0)
1.356     ad        979:                cv_wait(&lbolt, proc_lock);
                    980:        mutex_exit(proc_lock);
1.93      mouse     981:
                    982:        /*
                    983:         * This is not the right way to do this.  We really should
                    984:         * hand-craft a descriptor onto /dev/console to hand to init,
                    985:         * but that's a _lot_ more work, and the benefit from this easy
                    986:         * hack makes up for the "good is the enemy of the best" effect.
                    987:         */
1.260     christos  988:        check_console(l);
1.61      mycroft   989:
                    990:        /*
                    991:         * Need just enough stack to hold the faked-up "execve()" arguments.
                    992:         */
1.211     chs       993:        addr = (vaddr_t)STACK_ALLOC(USRSTACK, PAGE_SIZE);
1.205     sommerfe  994:        if (uvm_map(&p->p_vmspace->vm_map, &addr, PAGE_SIZE,
1.483     maxv      995:            NULL, UVM_UNKNOWN_OFFSET, 0,
                    996:            UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW, UVM_INH_COPY,
                    997:            UVM_ADV_NORMAL,
                    998:            UVM_FLAG_FIXED|UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW)) != 0)
1.114     mrg       999:                panic("init: couldn't allocate argument space");
1.297     christos 1000:        p->p_vmspace->vm_maxsaddr = (void *)STACK_MAX(addr, PAGE_SIZE);
1.61      mycroft  1001:
1.202     lukem    1002:        ipx = 0;
                   1003:        while (1) {
                   1004:                if (boothowto & RB_ASKNAME) {
                   1005:                        printf("init path");
                   1006:                        if (initpaths[ipx])
                   1007:                                printf(" (default %s)", initpaths[ipx]);
                   1008:                        printf(": ");
                   1009:                        len = cngetsn(ipath, sizeof(ipath)-1);
1.371     tsutsui  1010:                        if (len == 4 && strcmp(ipath, "halt") == 0) {
1.370     tsutsui  1011:                                cpu_reboot(RB_HALT, NULL);
                   1012:                        } else if (len == 6 && strcmp(ipath, "reboot") == 0) {
                   1013:                                cpu_reboot(0, NULL);
                   1014: #if defined(DDB)
                   1015:                        } else if (len == 3 && strcmp(ipath, "ddb") == 0) {
                   1016:                                console_debugger();
                   1017:                                continue;
                   1018: #endif
1.371     tsutsui  1019:                        } else if (len > 0 && ipath[0] == '/') {
1.202     lukem    1020:                                ipath[len] = '\0';
                   1021:                                path = ipath;
1.371     tsutsui  1022:                        } else if (len == 0 && initpaths[ipx] != NULL) {
                   1023:                                path = initpaths[ipx++];
                   1024:                        } else {
                   1025:                                printf("use absolute path, ");
                   1026: #if defined(DDB)
                   1027:                                printf("\"ddb\", ");
                   1028: #endif
                   1029:                                printf("\"halt\", or \"reboot\"\n");
                   1030:                                continue;
1.202     lukem    1031:                        }
                   1032:                } else {
1.370     tsutsui  1033:                        if ((path = initpaths[ipx++]) == NULL) {
                   1034:                                ipx = 0;
                   1035:                                boothowto |= RB_ASKNAME;
                   1036:                                continue;
                   1037:                        }
1.202     lukem    1038:                }
                   1039:
1.211     chs      1040:                ucp = (char *)USRSTACK;
1.64      mycroft  1041:
1.61      mycroft  1042:                /*
1.64      mycroft  1043:                 * Construct the boot flag argument.
1.61      mycroft  1044:                 */
1.66      mycroft  1045:                flagsp = flags;
                   1046:                *flagsp++ = '-';
1.61      mycroft  1047:                options = 0;
1.66      mycroft  1048:
1.61      mycroft  1049:                if (boothowto & RB_SINGLE) {
1.64      mycroft  1050:                        *flagsp++ = 's';
1.61      mycroft  1051:                        options = 1;
                   1052:                }
                   1053: #ifdef notyet
                   1054:                if (boothowto & RB_FASTBOOT) {
1.64      mycroft  1055:                        *flagsp++ = 'f';
1.61      mycroft  1056:                        options = 1;
                   1057:                }
                   1058: #endif
1.64      mycroft  1059:
                   1060:                /*
                   1061:                 * Move out the flags (arg 1), if necessary.
                   1062:                 */
                   1063:                if (options != 0) {
                   1064:                        *flagsp++ = '\0';
                   1065:                        i = flagsp - flags;
                   1066: #ifdef DEBUG
1.415     hubertf  1067:                        aprint_normal("init: copying out flags `%s' %d\n", flags, i);
1.64      mycroft  1068: #endif
1.211     chs      1069:                        arg1 = STACK_ALLOC(ucp, i);
                   1070:                        ucp = STACK_MAX(arg1, i);
1.474     christos 1071:                        if ((error = copyout((void *)flags, arg1, i)) != 0)
                   1072:                                goto copyerr;
                   1073:                } else
                   1074:                        arg1 = NULL;
1.61      mycroft  1075:
                   1076:                /*
                   1077:                 * Move out the file name (also arg 0).
                   1078:                 */
1.64      mycroft  1079:                i = strlen(path) + 1;
                   1080: #ifdef DEBUG
1.415     hubertf  1081:                aprint_normal("init: copying out path `%s' %d\n", path, i);
1.202     lukem    1082: #else
1.203     lukem    1083:                if (boothowto & RB_ASKNAME || path != initpaths[0])
1.202     lukem    1084:                        printf("init: trying %s\n", path);
1.64      mycroft  1085: #endif
1.211     chs      1086:                arg0 = STACK_ALLOC(ucp, i);
                   1087:                ucp = STACK_MAX(arg0, i);
1.474     christos 1088:                if ((error = copyout(path, arg0, i)) != 0)
                   1089:                        goto copyerr;
1.61      mycroft  1090:
                   1091:                /*
                   1092:                 * Move out the arg pointers.
                   1093:                 */
1.439     christos 1094:                ucp = (void *)STACK_ALIGN(ucp, STACK_ALIGNBYTES);
1.479     macallan 1095:                uap = (char **)STACK_ALLOC(ucp, sizeof(argv));
1.211     chs      1096:                SCARG(&args, path) = arg0;
                   1097:                SCARG(&args, argp) = uap;
                   1098:                SCARG(&args, envp) = NULL;
1.142     mycroft  1099:                slash = strrchr(path, '/');
1.474     christos 1100:
                   1101:                argv[0] = slash ? arg0 + (slash + 1 - path) : arg0;
                   1102:                argv[1] = arg1;
                   1103:                argv[2] = NULL;
1.479     macallan 1104:                if ((error = copyout(argv, uap, sizeof(argv))) != 0)
1.474     christos 1105:                        goto copyerr;
1.61      mycroft  1106:
                   1107:                /*
1.481     palle    1108:                 * Now try to exec the program.  If it can't for any reason
1.61      mycroft  1109:                 * other than it doesn't exist, complain.
                   1110:                 */
1.260     christos 1111:                error = sys_execve(l, &args, retval);
1.179     thorpej  1112:                if (error == 0 || error == EJUSTRETURN) {
1.292     ad       1113:                        KERNEL_UNLOCK_LAST(l);
1.61      mycroft  1114:                        return;
1.179     thorpej  1115:                }
1.202     lukem    1116:                printf("exec %s: error %d\n", path, error);
1.61      mycroft  1117:        }
1.90      christos 1118:        printf("init: not found\n");
1.61      mycroft  1119:        panic("no init");
1.474     christos 1120: copyerr:
                   1121:        panic("copyout %d", error);
1.61      mycroft  1122: }
1.345     yamt     1123:
                   1124: /*
1.448     para     1125:  * calculate cache size (in bytes) from physmem and vsize.
1.345     yamt     1126:  */
                   1127: vaddr_t
1.448     para     1128: calc_cache_size(vsize_t vsize, int pct, int va_pct)
1.345     yamt     1129: {
                   1130:        paddr_t t;
                   1131:
                   1132:        /* XXX should consider competing cache if any */
                   1133:        /* XXX should consider submaps */
1.346     yamt     1134:        t = (uintmax_t)physmem * pct / 100 * PAGE_SIZE;
1.448     para     1135:        if (vsize != 0) {
1.346     yamt     1136:                vsize = (uintmax_t)vsize * va_pct / 100;
                   1137:                if (t > vsize) {
                   1138:                        t = vsize;
                   1139:                }
1.345     yamt     1140:        }
                   1141:        return t;
                   1142: }
1.385     ad       1143:
                   1144: /*
                   1145:  * Print the system start up banner.
                   1146:  *
                   1147:  * - Print a limited banner if AB_SILENT.
                   1148:  * - Always send normal banner to the log.
                   1149:  */
1.388     tsutsui  1150: #define MEM_PBUFSIZE   sizeof("99999 MB")
                   1151:
1.385     ad       1152: void
                   1153: banner(void)
                   1154: {
                   1155:        static char notice[] = " Notice: this software is "
                   1156:            "protected by copyright";
1.386     ad       1157:        char pbuf[81];
1.446     christos 1158:        void (*pr)(const char *, ...) __printflike(1, 2);
1.385     ad       1159:        int i;
                   1160:
                   1161:        if ((boothowto & AB_SILENT) != 0) {
                   1162:                snprintf(pbuf, sizeof(pbuf), "%s %s (%s)",
                   1163:                    ostype, osrelease, kernel_ident);
1.392     ad       1164:                printf_nolog("%s", pbuf);
1.387     ad       1165:                for (i = 80 - strlen(pbuf) - sizeof(notice); i > 0; i--)
1.385     ad       1166:                        printf(" ");
1.392     ad       1167:                printf_nolog("%s\n", notice);
1.385     ad       1168:                pr = aprint_normal;
                   1169:        } else {
1.492     joerg    1170:                pr = printf;
1.385     ad       1171:        }
                   1172:
                   1173:        memset(pbuf, 0, sizeof(pbuf));
                   1174:        (*pr)("%s%s", copyright, version);
1.388     tsutsui  1175:        format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)physmem));
1.385     ad       1176:        (*pr)("total memory = %s\n", pbuf);
1.512   ! ad       1177:        format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)uvm_free()));
1.385     ad       1178:        (*pr)("avail memory = %s\n", pbuf);
                   1179: }

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