scoutos / prex-0.9.0 / sys / kern / main.c @ 03e9c04a
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/*-
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* Copyright (c) 2005-2009, Kohsuke Ohtani
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* main.c - kernel main routine
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*/
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#include <kernel.h> |
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#include <task.h> |
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#include <thread.h> |
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#include <timer.h> |
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#include <page.h> |
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#include <kmem.h> |
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#include <vm.h> |
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#include <sched.h> |
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#include <exception.h> |
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#include <irq.h> |
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#include <ipc.h> |
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#include <device.h> |
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#include <sync.h> |
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#include <hal.h> |
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/*
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* Initialization code.
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*
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* Called from kernel_start() routine that is
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* implemented in HAL.
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* We assume that the following machine state has
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* been already set before this routine.
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* - Kernel BSS section is filled with 0.
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* - Kernel stack is configured.
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* - All interrupts are disabled.
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* - Minimum page table is set. (MMU systems only)
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*/
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int
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main(void)
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{ |
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sched_lock(); |
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diag_init(); |
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DPRINTF((BANNER)); |
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/*
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* Initialize memory managers.
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*/
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page_init(); |
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kmem_init(); |
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/*
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* Do machine-dependent
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* initialization.
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*/
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machine_startup(); |
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/*
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* Initialize kernel core.
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*/
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vm_init(); |
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task_init(); |
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thread_init(); |
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sched_init(); |
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exception_init(); |
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timer_init(); |
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object_init(); |
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msg_init(); |
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/*
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* Enable interrupt and
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* initialize devices.
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*/
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irq_init(); |
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clock_init(); |
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device_init(); |
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/*
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* Set up boot tasks.
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*/
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task_bootstrap(); |
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/*
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* Start scheduler and
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* enter idle loop.
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*/
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sched_unlock(); |
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thread_idle(); |
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/* NOTREACHED */
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return 0; |
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} |