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

linux 2.6Ô´´úÂëÇé¾°·ÖÎö±Ê¼ÇÖ®ÖжÏÓëÒì³£6

ÿ¸öÖжÏÏòÁ¿¶¼ÓÐ×Ô¼ºµÄirq_desc_tÃèÊö·û£¬ËùÓеÄÕâЩÃèÊö·û×éÖ¯ÔÚÒ»ÆðÐγÉirq_descÊý×é¡£
typedef struct irq_desc {
        hw_irq_controller *handler;Ö¸Ïòpic¶ÔÏó£¨hw_irq_controllerÃèÊö·û£©£¬·þÎñÓÚirqÏß
        void *handler_data;Ö¸Ïòpic·½·¨ËùʹÓõÄÊý¾Ý
        struct irqaction *action;       /* IRQ action list */±êʶµ±³öÏÖirqʱҪµ÷ÓõÄÖжϷþÎñÀý³Ì¡£¸Ã×Ö¶ÎÖ¸ÏòirqµÄirqactionÃèÊö·ûÁ´±íµÄµÚÒ»¸öÔªËØ¡£
        unsigned int status;            /* IRQ status */ÃèÊöirqÏß״̬µÄÒ»×é±êÖ¾
        unsigned int depth;             /* nested irq disables */Èç¹ûirqÏß±»¼¤»î£¬ÔòÏÔʾ0£»Èç¹ûirqÏß±»½ûÖ¹Á˲»Ö¹Ò»´Î£¬ÔòÏÔʾһ¸öÕýÊý
        unsigned int irq_count;         /* For detecting broken interrupts */ÖжϼÆÊýÆ÷£¬Í³¼ÆirqÏßÉÏ·¢ÉúµÄÖжϼÆÊý
        unsigned int irqs_unhandled;ÖжϼÆÊýÆ÷£¬Í³¼ÆirqÏßÉÏ·¢ÉúµÄÎÞ·¨´¦ÀíµÄÖжϽøÐмÆÊý
        spinlock_t lock;ÓÃÓÚ´®ÐзÃÎÊirqÃèÊö·ûºÍpicµÄ×ÔÐýËø¡£
} ____cacheline_aligned irq_desc_t;
extern irq_desc_t irq_desc [NR_IRQS];
/*
 * IRQ line status.
 */
#define IRQ_INPROGRESS  1       /* IRQ handler active - do not enter! */IRQµÄÒ»¸ö´¦Àí³ÌÐòÕýÔÚÖ´ÐÐ
#define IRQ_DISABLED    2       /* IRQ disabled - do not enter! */ÓÉÒ»¸öÉ豸Çý¶¯³ÌÐò¹ÊÒâµØ½ûÓÃirqÏß
#define IRQ_PENDING     4       /* IRQ pending - replay on enable */Ò»¸öirqÒѾ­³öÏÖÔÚÏßÉÏ£¬ËüµÄ³öÏÖÒ²ÒѶÔpic×ö³öÓ¦´ð£¬µ«ÊÇÄں˻¹Ã»ÓÐΪËüÌṩ·þÎñ
#define IRQ_REPLAY      8 &nbs


Ïà¹ØÎĵµ£º

linuxÄں˺¯Êý±Ê¼Ç(¶þ)

ÐźÅÖ¸¶¨´¦Àíº¯Êý
void (*signal (int signum,void (*handle)(int)))(int);ÉèÖÃij¸öÐźŵĴ¦Àí·½·¨
int sigaction(int signum,const struct sigaction *act,struct sigaction *oldact);ÓÃÓÚ¼ì²é»ò¸Ä±ä½ø³ÌÔÚ½Óµ½ÐźÅʱµÄ¶¯×÷
Ðźż¯²Ù×÷º¯Êý
static inline void sigaddset(sigset_t *set,int _sig);
static inline voi ......

Linuxϵͳ¸÷°æ±¾±¾µØrootÃÜÂëÆÆ½â·½·¨ÕûÀí


¡¡¡¡Õâ¶Îʱ¼äÀÏÅöµ½ÓÐÈËÎʼ°¸÷¸öLinux°æ±¾µÄ±¾µØrootÃÜÂëÆÆ½â·½·¨£¬ÎÒÕâÀï×Ô¼ºÒÔ¼°ÔÚÍøÂçÉÏËѼ¯ÁËЩ×ÊÁÏ£¬Ï£Íû¶Ô¿´µ½ÁËÕâÎÄÕ¶øÓÖÇ¡ºÃÓõõ½µÄ¼¼ÊõÈËÔ±Óеã°ïÖú£º
(Ò»)RedHat/CentOS/Fedora ϵͳÃÜÂëÆÆ½â
¡¡¡¡1.ÔÚgrubÑ¡Ïî²Ëµ¥°´E½øÈë±à¼­Ä£Ê½
¡¡¡¡2.±à¼­kernel ÄÇÐÐ×îºó¼ÓÉϿոñS (»òÕ߿ոñSingle)
¡¡¡¡3.°´B£¬Æô¶¯µ ......

Linux tty/pty/pts ¸ÅÄîÇø±ð

tty0£­6ÊÇlinux±¾µØÖÕ¶Ë£¬pts/xÊÇÔ¶³ÌµÇ½ÐèÒªµÄÖÕ¶Ë£¬±ÈÈçijÈËÒªtelnetµ½ÄãµÄ»ú×Ó£¬¾ÍÐèÒªÄãµÄϵͳÓÐpts/x¡£ 
»ù±¾¸ÅÄ
¡¡
¡¡1. tty(ÖÕ¶ËÉ豸µÄͳ³Æ):
¡¡¡¡ttyÒ»´ÊÔ´ÓÚTeletypes£¬»òÕßteletypewriters£¬Ô­À´Ö¸µÄÊǵ紫´ò×Ö»ú£¬ÊÇͨ¹ý´®ÐÐÏßÓôòÓ¡»ú¼üÅÌͨ¹ýÔĶÁºÍ·¢ËÍÐÅÏ¢µÄ¶«Î÷£¬ºóÀ´Õâ¶«Î÷±»¼üÅÌÓëÏÔʾÆ÷È¡´ú ......

linuxÏÂcÓïÑԹػú³ÌÐò

/* Offtimer.c.For auto halt. */
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#define DELAY 60/* Time of sleeping */
int main()
{
  time_t now;
  struct tm *p;
  
  while(1)
  {
  now = time(NULL);
&n ......

LinuxÖÐÎļþµÄѹËõÓë½âѹËõ

¶ÔÐí¶àÓû§À´Ëµ£¬ÔÚDOSºÍWindows»·¾³ÏÂÀûÓù¤¾ßÈí¼þARJ¡¢WinzipµÈ£¬Ñ¹Ëõ»ò½âѹÎļþÊDZȽÏÈÝÒ×µÄÊ¡£µ«ÊÇ£¬ÔÚLinuxÖÐÈçºÎ¶ÔÎļþ½øÐÐѹËõÓë½âÑ¹ÄØ£¿±¾ÎÄ»ùÓÚRed Hat 6.0£¬½éÉÜÁËѹËõÓë½âѹÎļþµÄ¼¸ÖÖ·½·¨Óë¼¼ÇÉ£¬Ï£Íû¶Ô¶ÁÕßÓÐÒ»¶¨µÄ°ïÖú¡£
ÃüÁ
compress
¸ñʽ£º
compress Ñ¡Ïî ÎļþÁбí
¹¦ÄÜ£º
ÓÃLempel-zivѹËõ·½·¨ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ