[363] | 1 | /*
|
---|
| 2 | * TOPPERS/JSP Kernel
|
---|
| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems/
|
---|
| 4 | * Just Standard Profile Kernel
|
---|
| 5 | *
|
---|
| 6 | * Copyright (C) 2002 by Monami software, Limited Partners.
|
---|
| 7 | * Copyright (C) 2002 by MURANAKA Masaki
|
---|
| 8 | * Copyright (C) 2008- by Monami Software Limited Partnership, JAPAN
|
---|
| 9 | *
|
---|
| 10 | * ä¸è¨èä½æ¨©è
|
---|
| 11 | ã¯ï¼ä»¥ä¸ã®(1)ã(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
|
---|
| 12 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
|
---|
| 13 | * å¤ã»åé
|
---|
| 14 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
|
---|
| 15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
|
---|
| 16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
|
---|
| 17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
|
---|
| 18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
| 19 | * ç¨ã§ããå½¢ã§åé
|
---|
| 20 | å¸ããå ´åã«ã¯ï¼åé
|
---|
| 21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
|
---|
| 22 | * è
|
---|
| 23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
|
---|
| 24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
| 25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
|
---|
| 26 | * ç¨ã§ããªãå½¢ã§åé
|
---|
| 27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
|
---|
| 28 | * ã¨ï¼
|
---|
| 29 | * (a) åé
|
---|
| 30 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
|
---|
| 31 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
|
---|
| 32 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
|
---|
| 33 | * (b) åé
|
---|
| 34 | å¸ã®å½¢æ
|
---|
| 35 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
|
---|
| 36 | * å ±åãããã¨ï¼
|
---|
| 37 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
|
---|
| 38 | * 害ãããï¼ä¸è¨èä½æ¨©è
|
---|
| 39 | ããã³TOPPERSããã¸ã§ã¯ããå
|
---|
| 40 | 責ãããã¨ï¼
|
---|
| 41 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
|
---|
| 42 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
|
---|
| 43 | ããã³TOPPERSããã¸ã§ã¯ãã
|
---|
| 44 | * å
|
---|
| 45 | 責ãããã¨ï¼
|
---|
| 46 | *
|
---|
| 47 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
|
---|
| 48 | ã
|
---|
| 49 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
|
---|
| 50 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
|
---|
| 51 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
|
---|
| 52 | * ã®è²¬ä»»ãè² ããªãï¼
|
---|
| 53 | *
|
---|
| 54 | * @(#) $Id: start.S,v 1.1 2004/07/21 02:49:36 monaka Exp $
|
---|
| 55 | */
|
---|
| 56 |
|
---|
| 57 | /*
|
---|
| 58 | * ã«ã¼ãã«ç¨ã®ã¹ã¿ã¼ãã¢ããã¢ã¸ã¥ã¼ã«ï¼Multibootç¨ï¼
|
---|
| 59 | */
|
---|
| 60 |
|
---|
| 61 | #define _MACRO_ONLY
|
---|
| 62 | #include "jsp_kernel.h"
|
---|
| 63 | #include <multiboot.h>
|
---|
| 64 |
|
---|
| 65 | .text
|
---|
| 66 | .globl start
|
---|
| 67 | .globl _start
|
---|
| 68 | start:
|
---|
| 69 | _start:
|
---|
| 70 | jmp multiboot_entry
|
---|
| 71 |
|
---|
| 72 | .align 4
|
---|
| 73 | multiboot_header:
|
---|
| 74 | /* magic */
|
---|
| 75 | .long MULTIBOOT_HEADER_MAGIC
|
---|
| 76 | /* flags */
|
---|
| 77 | .long MULTIBOOT_HEADER_FLAGS
|
---|
| 78 | /* checksum */
|
---|
| 79 | .long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
|
---|
| 80 | /* header_addr */
|
---|
| 81 | .long multiboot_header
|
---|
| 82 | /* load_addr */
|
---|
| 83 | .long _start
|
---|
| 84 | /* load_end_addr */
|
---|
| 85 | .long _edata
|
---|
| 86 | /* bss_end_addr */
|
---|
| 87 | .long _end
|
---|
| 88 | /* entry_addr */
|
---|
| 89 | .long multiboot_entry
|
---|
| 90 |
|
---|
| 91 | multiboot_entry:
|
---|
| 92 | movl STACKTOP, %esp
|
---|
| 93 | pushl $0
|
---|
| 94 | popf
|
---|
| 95 |
|
---|
| 96 | /*
|
---|
| 97 | * hardware_init_hook ã®å¼åºãï¼0 ã§ãªãå ´åï¼
|
---|
| 98 | *
|
---|
| 99 | * ã¿ã¼ã²ãããã¼ãã¦ã§ã¢ã«ä¾åãã¦å¿
|
---|
| 100 | è¦ãªåæåå¦çãããå ´å
|
---|
| 101 | * ã¯ï¼hardware_init_hook ã¨ããé¢æ°ãç¨æããï¼
|
---|
| 102 | */
|
---|
| 103 | start_1:
|
---|
| 104 | movl hardware_init_hook, %eax
|
---|
| 105 | cmpl 0, %eax
|
---|
| 106 | je start_2
|
---|
| 107 | call hardware_init_hook
|
---|
| 108 |
|
---|
| 109 | /*
|
---|
| 110 | * software_init_hook ãå¼åºãï¼0 ã§ãªãå ´åï¼
|
---|
| 111 | *
|
---|
| 112 | * ã½ããã¦ã§ã¢ç°å¢ï¼ç¹ã«ã©ã¤ãã©ãªï¼ã«ä¾åãã¦å¿
|
---|
| 113 | è¦ãªåæåå¦
|
---|
| 114 | * çãããå ´åã¯ï¼software_init_hook ã¨ããé¢æ°ãç¨æããã°
|
---|
| 115 | * ããï¼
|
---|
| 116 | */
|
---|
| 117 | start_2:
|
---|
| 118 | movl software_init_hook, %eax
|
---|
| 119 | cmpl 0, %eax
|
---|
| 120 | je start_3
|
---|
| 121 | call software_init_hook
|
---|
| 122 |
|
---|
| 123 | /*
|
---|
| 124 | * ã«ã¼ãã«ãèµ·åããï¼
|
---|
| 125 | */
|
---|
| 126 | start_3:
|
---|
| 127 | jmp kernel_start
|
---|
| 128 |
|
---|
| 129 |
|
---|
| 130 |
|
---|
| 131 | /* éã¿ã¹ã¯ã³ã³ããã¹ãç¨ã®ã¹ã¿ã㯠*/
|
---|
| 132 | .globl stack
|
---|
| 133 | .comm stack, STACKSIZE
|
---|