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Annotation of prex-old/sys/kern/main.c, Revision 1.1.1.1

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: }