Colony » Colony Scout » Colony Scout OS

/*-

 * Copyright (c) 2005-2009, Kohsuke Ohtani

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the author nor the names of any co-contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

/*

 * main.c - kernel main routine

 */

#include <kernel.h>

#include <task.h>

#include <thread.h>

#include <timer.h>

#include <page.h>

#include <kmem.h>

#include <vm.h>

#include <sched.h>

#include <exception.h>

#include <irq.h>

#include <ipc.h>

#include <device.h>

#include <sync.h>

#include <hal.h>

/*

 * Initialization code.

 *

 * Called from kernel_start() routine that is

 * implemented in HAL.

 * We assume that the following machine state has

 * been already set before this routine.

 *        - Kernel BSS section is filled with 0.

 *        - Kernel stack is configured.

 *        - All interrupts are disabled.

 *        - Minimum page table is set. (MMU systems only)

 */

int

main(void)

{

        sched_lock();

        diag_init();

        DPRINTF((BANNER));

        /*

         * Initialize memory managers.

         */

        page_init();

        kmem_init();

        /*

         * Do machine-dependent

         * initialization.

         */

        machine_startup();

        /*

         * Initialize kernel core.

         */

        vm_init();

        task_init();

        thread_init();

        sched_init();

        exception_init();

        timer_init();

        object_init();

        msg_init();

        /*

         * Enable interrupt and

         * initialize devices.

         */

        irq_init();

        clock_init();

        device_init();

        /*

         * Set up boot tasks.

         */

        task_bootstrap();

        /*

         * Start scheduler and

         * enter idle loop.

         */

        sched_unlock();

        thread_idle();

        /* NOTREACHED */

        return 0;

}