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: }
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