Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

linux 2.6Ô´´úÂëÇé¾°·ÖÎö±Ê¼ÇÖ®ÄÚ´æ3

¹ØÓÚe820
   e820ÊÇBIOSµÄ£¨int 0x15£©ÖжϹØÁªµÄ¡£ÔÚʹÓôËÖжÏʱ£¬axÖбØÐëÊÇe820(ireg.ax=0xe820;)¡£Í¨¹ý´ËÖжϿÉÒԵõ½ÄÚ´æµÄϵͳ²¼¾Ö¡£Í¨¹ýdoÑ­»·£¬Ã¿´ÎµÃµ½Ò»¶Î¡£
/linux32/arch/x86/include/asm/e820.h
ºêE820_MAPÊÇstruct e820entryÊý¾Ý½á¹¹µÄÖ¸Õ룬´æ·ÅÔÚ²ÎÊý¿éÖÐÎ»ÒÆÎª0x2d0µÄµØ·½¡£
#define E820MAP 0x2d0           /* our map */
#define E820MAX 128             /* number of entries in E820MAP */
#define E820NR  0x1e8           /* # entries in E820MAP */
#define E820_RAM        1
#define E820_RESERVED   2
#define E820_ACPI       3 /* usable as RAM once ACPI tables have been read */
#define E820_NVS        4//´ËÏî±íÃ÷rom eprom flash´æ´¢Æ÷¡£
#define E820_UNUSABLE   5
#include <linux/types.h>
struct e820entry {
        __u64 addr;     /* start of memory segment */
        __u64 size;     /* size of memory segment */
        __u32 type;     /* type of memory segment */
} __attribute__((packed));
#define E820_X_MAX (E820MAX + 3 * MAX_NUMNODES)
struct e820map {
        __u32 nr_map;
        struct e820entry map[E820_X_MAX];
};
ÿ¸ö½á¹¹¶¼ÊǶÔÒ»¸öÎïÀíÇø¼äµÄÃèÊö£¬²¢ÇÒÒ»¸öÎïÀíÇø¼ä±ØÐëÊÇͬһÀàÐÍ¡£Èç¹ûÓÐһƬµØÖ·Á¬ÐøµÄÎïÀíÄÚ´æ¿Õ¼ä£¬ÆäÖÐÒ»²¿·ÖÊÇramÁíÒ»²¿·ÖÊÇrom£¬¾ÍÒª·Ö³ÉÁ½¸öÇø¼ä¡£¼´Ê¹Í¬Êôram£¬Èç¹ûÆäÖÐÒ»²¿·ÖÒª±£ÁôÓÃÓÚÌØÊâÄ¿µÄ£¬ÄÇÒ²ÊôÓÚ²»Í¬µÄÒ»¸ö·ÖÇø¡£
´Ó0xf0000-0xfffffµÄ×î¸ß4k,¾ÍÊÇbiosʹÓõģ¬Ö»ÒªÓÐbios´æÔÚ£¬¾ÍÐèÒªÁ½¸öÇø¼ä¡£ÄÇônr_map¾Í²»ÄÜСÓÚ2.ÏÖÔÚ1mbµÄ±ß½çÒѾ­´òÆÆ£¬½«1mbÒÔÉϵĿռä½ÐHIGH_MEMORY¡£ÎªÁ˼æÈÝ£¬¾ÍÒª±£Áô×î³õµÄ1mb.
#define HIGH_MEMOR


Ïà¹ØÎĵµ£º

ʵսLinux Bluetooth±à³Ì£¨Èý£© HCI²ã±à³Ì

1. HCI²ãЭÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
´ÓͼÉÏ¿ÉÒÔ¿´³ö£¬Host Controller Interface(HCI)  ¾ÍÊÇÓÃÀ´¹µÍ¨HostºÍModule¡£Hostͨ³£¾ÍÊÇPC£¬ ModuleÔòÊÇÒÔ¸÷ÖÖÎïÀíÁ¬½ÓÐÎʽ£¨USB,serial,pc-cardµÈ£©Á¬½Óµ½PCÉϵÄbluetooth Dongle¡£
ÔÚHostÕâÒ»¶Ë£ºapplication,SDP,L2capµÈЭÒé ......

linuxʹÓÃСÇÏÃÅ

ʵÓÃСÇÏÃÅʵÔÚÌ«¶àÁË£¬ÂýÂý̽Ë÷°É¡£ÏëÆð¸ÕÓõçÄÔʱ£¬ÌìÌìÔÚ¡¶µçÄÔ°®ºÃÕß¡·ÖÐÕÒСÇÏÃÅ¡£ÕÒµ½Á˾ÍÈç»ñÖÁ±¦¡£ÓÖ¿´µ½ÎÒblogÖÐÓÐÈ˻ظ´²»Ï°¹ßubuntu£¬»¹ÊÇͶ±¼win7¡£ÐÄÏ룬Ӧ¸ÃijЩÈËҲͦÐèÒªÒ»µãʹÓÃСÇÏÃŵĽ»Á÷µÄ¡£ÐÅÊÖдÁËЩ£¬¹©²Î¿¼¡£
±¾ÎÄÊʺϳõ¼¶Óû§ÔĶÁ¡£
1.Öն˸´ÖÆÕ³Ìù
ÓÃgnomeÖÕ¶Ëʱ£¬¶Ô×Ö·ûµÄ¸´ÖÆÕ³Ìù¸Ð¾õûÓÐw ......

linuxѧϰ±Ê¼Ç Ŀ¼ ÃüÁî

linuxĿ¼¼Ü¹¹
/       ¸ùĿ¼
/bin         ³£ÓõÄÃüÁî   binary   file   µÄÄ¿錄
/boot       ´æ·ÅϵͳÆô¶¯Ê±±ØÐë¶ÁÈ¡µÄµµ°¸£¬°üÀ¨ºËÐÄ   (kernel) &nb ......

Linux²Ù×÷ϵͳµÄÍ·ÎļþºÍ¿âÎļþËÑË÷·¾¶

Ò»¡¢ Í·Îļþ 1 ¡°¡±ÖеÄÍ·Îļþ£¬ÔÚÔ´Îļþµ±Ç°Ä¿Â¼²éÕÒ 2 -I ÖÐÖ¸¶¨Ä¿Â¼ 3 gccµÄ»·¾³±äÁ¿ C_INCLUDE_PATH, CPLUS_INCLUDE_PATH, OBJC_INCLUDE_PATH 4 ±àÒëÆ÷Ô¤Éè·¾¶¡¢ÄÚ¶¨Ä¿Â¼£º /usr/include /usr/local/include /usr/lib/gcc-lib/i386-linux/2.95.2/include /usr/lib/gcc-lib/i386-linux/2.95.2/../../../.. ......

linuxÖеÄÓ²Á´½ÓºÍ·ûºÅÁ´½Ó

Ë÷Òý½Úµã¡¢Ó²Á¬½ÓºÍÁ¬½Ó¼ÆÊý
Ë÷Òý½Úµãinode£º
    LinuxΪÿ¸öÎļþ·ÖÅäÒ»¸ö³ÆÎªË÷Òý½ÚµãµÄºÅÂëinode£¬¿ÉÒÔ½«inode¼òµ¥Àí½â³ÉÒ»¸öÖ¸Õ룬ËüÓÀÔ¶Ö¸Ïò±¾ÎļþµÄ¾ßÌå´æ´¢Î»Öá£ÏµÍ³ÊÇͨ¹ýË÷Òý½Úµã(¶ø²»ÊÇÎļþÃû)À´¶¨Î»Ã¿Ò»¸öÎļþ¡£
    ÀýÈ磺¼ÙÉèÎÒÃÇÔÚÓ²Å̵±Ç°Ä¿Â¼Ï½¨Á¢ÁËÒ»¸öÃûΪmytextÎı ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ