ǶÈëʽLinux²Ù×÷ϵͳѧϰ¹æ»®
ARM+LINUX·Ïߣ¬Ö÷¹¥Ç¶ÈëʽLinux²Ù×÷ϵͳ¼°ÆäÉÏÓ¦ÓÃÈí¼þ¿ª·¢Ä¿±ê£º
£¨1£©ÕÆÎÕÖ÷Á÷ǶÈëʽ΢´¦ÀíÆ÷µÄ½á¹¹ÓëÔÀí£¨³õ²½¶¨Îªarm9£©
£¨2£©±ØÐëÕÆÎÕÒ»¸öǶÈëʽ²Ù×÷ϵͳ£¨³õ²½¶¨Îªuclinux»òlinux,°æ±¾´ý¶¨£©
£¨3£©±ØÐëÊìϤǶÈëʽÈí¼þ¿ª·¢Á÷³Ì²¢ÖÁÉÙ×öÒ»¸öǶÈëʽÈí¼þÏîÄ¿¡£
´ÓÊÂǶÈëʽÈí¼þ¿ª·¢µÄºÃ´¦ÊÇ£º
£¨1£©Ä¿Ç°¹úÄÚÍâÕâ·½ÃæµÄÈ˶¼ºÜϡȱ¡£ÕâÒ»ÁìÓòÈëÃÅÃż÷½Ï¸ß£¬ËùÒÔ·ÇרҵITÈËÔ±ºÜÄÑÇÐ
ÈëÕâÒ»ÁìÓò£»ÁíÒ»·½Ã棬ÊÇÒòΪÕâÒ»ÁìÓò½ÏУ¬Ä¿Ç°·¢Õ¹Ì«¿ì£¬´ó¶àÊýÈËÎÞÌõ¼þ½Ó´¥¡£
£¨2£©ÓëÆóÒµ¼ÆËãµÈÓ¦ÓÃÈí¼þ²»Í¬£¬Ç¶ÈëʽÁìÓòÈ˲ŵŤ×÷Ç¿¶Èͨ³£µÍһЩ£¨µ«ÊÕÈë²»µÍ£©¡£
£¨3£©ÄÄÌìÈôÏë´´Òµ£¬¸ã×ÔÒѵIJúÆ·£¬Ç¶Èëʽ²»ÏñÓ¦ÓÃÈí¼þÄÇÑùÈÝÒ×±»µÁ°æ¡£Ó²¼þÉè¼ÆÒ»°ã
¶¼ÊÇÇëÆäËü¹«Ë¾¸ø¶©×ö£¨Õâ½Ð“ÌùÅÆ”£ºOEM£©£¬¶¼ÊÇͨÓõÄÓ²¼þ£¬ÎÒÃÇÖ»¹ÜÉè¼ÆÈí¼þ¾Í±ä³É
×Ô¼ºµÄ²úÆ·ÁË¡£
£¨4£©ÐËȤËùÔÚ£¬ÕâÊÇ×îÖ÷ÒªµÄ¡£
´ÓÊÂǶÈëʽÈí¼þ¿ª·¢µÄȱµãÊÇ£º
£¨1£©ÈëÃÅÆðµã½Ï¸ß£¬ËùÓõ½µÄ¼¼ÊõÍùÍù¶¼ÓÐÒ»¶¨ÄѶȣ¬ÈôÈíÓ²¼þ»ù´¡²»ºÃ£¬ÌرðÊDzÙ×÷ϵ
ͳ¼¶Èí¼þ¹¦µ×²»ÉÔò¿ÉÄܲ»ÊÊÓÚ´ËÐС£
£¨2£©Õâ·½ÃæµÄÆóÒµÊýÁ¿ÒªÔ¶ÉÙÓÚÆóÒµ¼ÆËãÀàÆóÒµ¡£
£¨3£©ÓÐÉÙÊý¹«Ë¾¾³£ÒªË¶Ê¿ÒÔÉϵÄÈ˸ãǶÈëʽ£¬Ö÷ÒªÊÇ»ùÓÚǶÈëʽµÄÄѶȡ£µ«´ó¶àÊý¹«Ë¾
Ò²²¢ÎÞ´ËÒªÇó£¬Ö»ÒªÓоÑé¼´¿É¡£
£¨4£©Æ½Ì¨ÒÀÍÐÇ¿£¬»»Æ½Ì¨±È½ÏÐÁ¿à¡£
ÐËȤµÄÓÉÀ´£º
1¡¢³É¹¦¹ÛÄͬ£¬²»Ðé¶È´ËÉú£¬¾ÍÊÇÎҵijɹ¦¡£
2¡¢Ï²»¶Ë¼¿¼£¬ÌôÕ½Â߼˼ά¡£
3¡¢Ï²»¶C
CÊÇÒ»ÖÖÄÜ·¢»Ó˼ά¼«ÏÞµÄÓïÑÔ¡£¹ØÓÚCµÄ¾«ÉñµÄһЩ·½Ãæ¿ÉÒÔ±»¸ÅÊö³É¶Ì¾äÈçÏ£º
ÏàÐųÌÐòÔ±¡£
²»Òª×èÖ¹³ÌÐòÔ±×öÄÇЩÐèҪȥ×öµÄ¡£
±£³ÖÓïÑÔ¶ÌС¾«¸É¡£
Ò»ÖÖ·½·¨×öÒ»¸ö²Ù×÷¡£
ʹµÃËüÔËÐеĹ»¿ì£¬¾¡¹ÜËü²¢²»Äܱ£Ö¤½«ÊÇ¿ÉÒÆÖ²µÄ¡£
4¡¢Ï²»¶µ×²ã¿ª·¢£¬ÌÖÑávbÀ࿪·¢¹¤¾ß£¨²¢²»ÊÇ˵vb²»ºÃ£©¡£
5¡¢·¢Õ¹Ç°¾°ºÃ£¬Êʺϴ´Òµ£¬²»Ïë×Ô¼ºÒªËÀÁ˵Äʱºò»¹ÊÇÒ»¸ö¹¤³Ìʦ¡£
·½·¨²½Ö裺
1¡¢»ù´¡ÖªÊ¶£º
Ä¿µÄ£ºÄÜ¿´¶®Ó²¼þ¹¤×÷ÔÀí£¬µ«ÖصãÔÚǶÈëʽÈí¼þ£¬ÌرðÊDzÙ×÷ϵͳ¼¶Èí¼þ£¬Äǽ«ÊÇÎÒµÄÓÅ
ÊÆ¡£
¿ÆÄ¿£ºÊý×ֵ緡¢¼ÆËã»ú×é³ÉÔÀí¡¢Ç¶Èëʽ΢´¦ÀíÆ÷½á¹¹¡£
»ã±àÓïÑÔ¡¢C/C++¡¢±àÒëÔÀí¡¢ÀëÉ¢Êýѧ¡£
Êý¾Ý½á¹¹ºÍËã·¨¡¢²Ù×÷ϵͳ¡¢Èí¼þ¹¤³Ì¡¢ÍøÂç¡¢Êý¾Ý¿â¡£
·½·¨£ºË
Ïà¹ØÎĵµ£º
Programming your application or library based on Qt has always had the promise that you can deploy your application on many different platforms. Development of those applications can, likewise, happen on many different platforms. QtCreator runs on Windows, Mac & Linux among others.
QtºÜ¼òµ¥£¬Ò× ......
ÔÚÕýʽ½éÉÜ iptables
µÄʹÓÃ
֮ǰ£¬ÎÒÃÇÏÈÀ´¿´Ò»ÏÂºÍ iptables
Ïà¹ØµÄһЩ»ù±¾¸ÅÄî¡£ÎÒÃÇÏÂÃæ½«»áƵ·±Ê¹ÓÃ
µ½
ËüÃÇ¡£
Æ¥Å䣨match£©£º·ûºÏÖ¸¶¨µÄÌõ¼þ£¬±ÈÈçÖ¸¶¨µÄ IP µØÖ·ºÍ¶Ë¿Ú¡£
¶ªÆú£¨drop£©£ºµ±Ò»¸ö°üµ½´ïʱ£¬¼òµ¥µØ¶ªÆú£¬²»×öÆäËüÈκδ¦Àí¡£
½ÓÊÜ£¨accept£©£ººÍ¶ªÆúÏà·´£¬½ÓÊÜÕâ¸ö°ü£¬ÈÃÕâ¸ö°üͨ¹ý¡£
¾ ......
UNIXÊÇÀúÊ·×îÓÆ¾ÃµÄͨÓòÙ×÷ϵͳ¡£1969Ä꣬ÃÀ¹ú±´¶ûʵÑéÊÒµÄK.ThompsonºÍD.M.RitchieÔÚ¹æÄ£½ÏС¼°½Ï¼òµ¥µÄ·Öʱ²Ù×÷ϵͳMULTICSµÄ»ù´¡ÉÏ¿ª·¢³öUNIX, µ±Ê±ÊÇÔÚDECµÄPDP—7СÐͼÆËã»úÉÏʵÏֵģ¬1970ÄêÕýʽͶÈëÔËÐС£´ËºóÊýÄ꣬UNIXÒ»Ö±ÊÇÒ»¸öÏÞÓÚÔÚAT&TÄÚ²¿Ê¹ÓõIJÙ×÷ϵͳ¡£1971Ä꣬·¢Õ¹³öÒÔ PDP- ......
http://linux.chinaunix.net/bbs/archiver/tid-985372.html
Linux Kernel: ¼ò½éHZ, tick and jiffie
Linux[/b]ºËÐÄ幾個ÖØÒª¸ú時間ÓÐ關µÄÃû詞»ò變數£¬µ×ÏÂ將½é紹HZ[/b]¡¢tick與jiffies¡£
......