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Annotation of prex-old/sys/kern/main.c, Revision 1.1

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.
        !            51:  * This is called from kernel_start() routine that
        !            52:  * is implemented in the architecture dependent layer.
        !            53:  * We assumes that the following machine state are
        !            54:  * already set before this routine.
        !            55:  *     - Kernel BSS section is filled with 0.
        !            56:  *     - Kernel stack is configured.
        !            57:  *     - All interrupts are disabled.
        !            58:  *     - Minimum page table is set. (MMU only)
        !            59:  */
        !            60: void
        !            61: kernel_main(void)
        !            62: {
        !            63:
        !            64:        /*
        !            65:         * Do machine-dependent
        !            66:         * initialization.
        !            67:         */
        !            68:        diag_init();
        !            69:        printk(BANNAR);
        !            70:        sched_lock();
        !            71:        machine_init();
        !            72:
        !            73:        /*
        !            74:         * Initialize memory managers.
        !            75:         */
        !            76:        page_init();
        !            77:        mmu_init();
        !            78:        kmem_init();
        !            79:        vm_init();
        !            80:
        !            81:        /*
        !            82:         * Initialize kernel core.
        !            83:         */
        !            84:        task_init();
        !            85:        thread_init();
        !            86:        sched_init();
        !            87:        exception_init();
        !            88:        timer_init();
        !            89:
        !            90:        /*
        !            91:         * Initialize IPC related stuff.
        !            92:         */
        !            93:        object_init();
        !            94:        msg_init();
        !            95:
        !            96:        /*
        !            97:         * Enable interrupt and
        !            98:         * initialize devices.
        !            99:         */
        !           100:        irq_init();
        !           101:        clock_init();
        !           102:        device_init();
        !           103:
        !           104:        /*
        !           105:         * Set up boot tasks and
        !           106:         * start scheduler.
        !           107:         */
        !           108:        task_bootstrap();
        !           109:        sched_unlock();
        !           110:
        !           111:        /*
        !           112:         * Enter idle loop.
        !           113:         */
        !           114:        thread_idle();
        !           115:        /* NOTREACHED */
        !           116: }