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Annotation of prex-old/sys/kern/main.c, Revision 1.1.1.1.2.1

1.1       nbrk        1: /*-
                      2:  * Copyright (c) 2005-2007, Kohsuke Ohtani
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. Neither the name of the author nor the names of any co-contributors
                     14:  *    may be used to endorse or promote products derived from this software
                     15:  *    without specific prior written permission.
                     16:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     27:  * SUCH DAMAGE.
                     28:  */
                     29:
                     30: /*
                     31:  * main.c - kernel main routine
                     32:  */
                     33:
                     34: #include <kernel.h>
                     35: #include <task.h>
                     36: #include <thread.h>
                     37: #include <timer.h>
                     38: #include <page.h>
                     39: #include <kmem.h>
                     40: #include <vm.h>
                     41: #include <sched.h>
                     42: #include <exception.h>
                     43: #include <irq.h>
                     44: #include <ipc.h>
                     45: #include <device.h>
                     46: #include <sync.h>
                     47: #include <version.h>
                     48:
                     49: /*
                     50:  * Initialization code.
1.1.1.1.2.1! nbrk       51:  *
        !            52:  * Called from kernel_start() routine that is
        !            53:  * implemented in the architecture dependent layer.
        !            54:  * We assume that the following machine state has
        !            55:  * been already set before this routine.
1.1       nbrk       56:  *     - Kernel BSS section is filled with 0.
                     57:  *     - Kernel stack is configured.
                     58:  *     - All interrupts are disabled.
1.1.1.1.2.1! nbrk       59:  *     - Minimum page table is set. (MMU systems only)
1.1       nbrk       60:  */
1.1.1.1.2.1! nbrk       61: int
        !            62: main(void)
1.1       nbrk       63: {
                     64:
                     65:        /*
                     66:         * Do machine-dependent
                     67:         * initialization.
                     68:         */
                     69:        diag_init();
1.1.1.1.2.1! nbrk       70:        DPRINTF((BANNER));
1.1       nbrk       71:        sched_lock();
                     72:        machine_init();
                     73:
                     74:        /*
                     75:         * Initialize memory managers.
                     76:         */
                     77:        page_init();
                     78:        mmu_init();
                     79:        kmem_init();
                     80:        vm_init();
                     81:
                     82:        /*
                     83:         * Initialize kernel core.
                     84:         */
                     85:        task_init();
                     86:        thread_init();
                     87:        sched_init();
                     88:        exception_init();
                     89:        timer_init();
                     90:
                     91:        /*
                     92:         * Initialize IPC related stuff.
                     93:         */
                     94:        object_init();
                     95:        msg_init();
                     96:
                     97:        /*
                     98:         * Enable interrupt and
                     99:         * initialize devices.
                    100:         */
                    101:        irq_init();
                    102:        clock_init();
                    103:        device_init();
                    104:
                    105:        /*
                    106:         * Set up boot tasks and
                    107:         * start scheduler.
                    108:         */
                    109:        task_bootstrap();
                    110:        sched_unlock();
                    111:        thread_idle();
1.1.1.1.2.1! nbrk      112:
1.1       nbrk      113:        /* NOTREACHED */
1.1.1.1.2.1! nbrk      114:        return 0;
1.1       nbrk      115: }