LinuxÄں˼°ARMµÄÄÚ´æ¹ÜÀí
Ò»¸öÈ˲ªÒ»´Î²»ÄÑ£¬ÄѵÄÊDzªÒ»±²×Ó……
×î½ü·ÖÐĵÄʺܶ࣬²ªµÃÔ½À´Ô½ÉÙÁË£¡
´ò¿ªmmuÊÇÒ»¼þÉñÊ¥µÄ¹¤×÷£¬ÐèÒª×Ðϸ¡¢ÔÙ×Ðϸ……
´Ó__v7_setupº¯Êý·µ»ØÀ´£¬½øÈëµ½__enable_mmu¹ý³Ì£¬×öÆð·ÉǰµÄ×îºóÈ·ÈÏ£º
__enable_mmu:
#ifdef CONFIG_ALIGNMENT_TRAP
orr r0, r0, #CR_A
#else
bic r0, r0, #CR_A
#endif
¸ù¾ÝÅäÖÃÑ¡Ï¾ö¶¨ÊÇ·ñ´ò¿ªÊý¾Ý¶ÔÆë¼ì²é£¬Ò»°ãÊÇÒª´ò¿ªµÄ£»
#ifdef CONFIG_CPU_DCACHE_DISABLE
bic r0, r0, #CR_C
#endif
¸ù¾ÝÅäÖÃÑ¡Ï¾ö¶¨ÊÇ·ñ¹Ø±Õ¿ªÊý¾Ý»º³åÇø£¬Ò»°ãÊDz»ÐèÒª¹Ø±ÕµÄ£»
#ifdef CONFIG_CPU_BPREDICT_DISABLE
bic r0, r0, #CR_Z
#endif
¸ù¾ÝÅäÖÃÑ¡Ï¾ö¶¨ÊÇ·ñÒª¹Ø±Õ·ÖÖ§Ô¤²â¹¦ÄÜ£¬Ò»°ãÊDz»ÐèÒª¹Ø±ÕµÄ£»
#ifdef CONFIG_CPU_ICACHE_DISABLE
bic r0, r0, #CR_I
#endif
¸ù¾ÝÅäÖÃÑ¡Ï¾ö¶¨ÊÇ·ñ¹Ø±Õ¿ªÖ¸Á³åÇø£¬Ò»°ãÊDz»ÐèÒª¹Ø±ÕµÄ£»
mov r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
domain_val(DOMAIN_IO, DOMAIN_CLIENT))
½áºÏÊý¾ÝÊֲᣬ´Ë¶ÎÊǽ«D0¡¢D1Á½¸öÓò£¬D1¶ÔÓ¦ÓÚUSERÓò£¬D0¶ÔÓ¦ÓÚKERNELºÍTABLEÓò£¬ÅäÖÃΪ¹ÜÀíģʽ£¬¶ÔÕâÁ½¸öÓòµÄ·ÃÎʺÍÖ´Ðв»ÊÜTLBÖÐÏàÓ¦±ê־λӰÏ죬D2Óò£¬¶ÔÓ¦ÓÚIOÓò£¬ÅäÖÃΪ¿Í»§Ä£Ê½£¬¶Ô´ËÓòµÄ·ÃÎÊÊÜTLBÖÐÏàÓ¦±ê־λµÄ¼ì²é£»
mcr p15, 0, r5, c3, c0, 0 @ load domain access register
дÈëÓò·ÃÎÊ¿ØÖƼĴæÆ÷£¬ÆäʵºÍ__v7_setupº¯ÊýÖÐдÈëµÄÖµÏàͬ£»
mcr p15, 0, r4, c2, c0, 0 @ load page table pointer
__v7_setupº¯ÊýÖÐÒ²ÒѾд¹ýÕâ¸ö¼Ä´æÆ÷ÁË£»
b __turn_mmu_on
__turn_mmu_on¾ÍÔÚºóÃæ½ô¸ú×Å£¬²»Ã÷°×ΪºÎ»¹Òªbһϣ»
ENDPROC(__enable_mmu)
ÔÙ¿´¿´½ô½Ó×ŵÄ__turn_mmu_onº¯Êý£º
/*
* Enable the MMU. This completely changes the structure of the visible
* memory space. You will not be able to trace execution through this.
* If you have an enquiry about this, *please* check the linux-arm-kernel
* mailing list archives BEFORE sending another post to the list.
*
* r0 = cp#15 control register
* r13 = *virtual* address to jump to upon co
Ïà¹ØÎĵµ£º
£¨L2CAPÐÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPÐÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
É󼯏ú×ÙLinuxµÄÒì³£»î¶¯
Zhaoke, 2007-01-29
һЩÒì³£Óû§ÊÔÍ¼ÒÆÈ¥ÏµÍ³ÉϵÄËùÓл¼Ç¼(±ÈÈç ~/.bash_history), ²»¹ýÎÒÃÇ¿ÉÒÔʹÓÃרÃŵŤ¾ßÀ´¼àÊÓËùÓÐÓû§Ö´ÐеÄÃüÁî. ÍÆ¼öÄãʹÓýø³Ì¼ÇÕÊÀ´¼Ç¼Óû§µÄ»î¶¯, Äã¿ÉÒÔͨ¹ý½ø³Ì¼ÇÕʲ鿴ÿһ¸öÓû§Ö´ÐеÄÃüÁî, °üÀ¨CPUʱ¼äºÍÄÚ´æÕ¼ÓÃ.
psacct³ÌÐòÌṩÁ˼¸¸ö½ø³Ì»î¶¯¼àÊ ......
ʵģʽΪʲô²»°²È«£¿
ÔÚʵģʽÖУ¬cpu¸ù¾ÝÖ¸ÁîÀàÐ;ö¶¨²ÉÓÃDS¡¢CS¡¢ES»¹ÊÇSS£¬´Ó¶Î¼Ä´æÆ÷ÖÐÈ¡³ö»ùÖµ£¬ÔÙ´ÓÖ¸ÁîÖÐÈ¡³öÆ«ÒÆÖµ¡£ÕâÀï´æÔÚÁ½¸öÎÊÌ⣺
1. ¶Î¼Ä´æÆ÷µÄÖµ¿ÉÒÔ±»ÆÕͨȨÏÞµÄÖ¸Áî·ÃÎÊ£¬Õâ¾ÍÒâζ×ÅÓû§½ø³Ì¿ÉÒÔÐ޸ĶμĴæÆ÷µÄÖµ¡£
2. Æ«ÒÆÖµÎª16룬¿ÉÒÔ·ÃÎÊ´Ó»ùµØÖ·¿ªÊ¼µÄ64KµÄÁ¬Ðø¿Õ¼ä¡£
ͨ¹ýÕâÁ½¸öÖµ£¬¿ÉÒÔ·ÃÎÊ ......
»·¾³£ºRHEL 5.3
°²×°ÁËMySQLÖ®ºó£¬MySQLµÄrootÓû§Ä¬ÈÏÊDz»¿ª·ÅÔ¶³Ì·ÃÎÊȨÏ޵ġ£ÎªÁË¿ª·ÅËü£¬Ö»ÐèÒªÁ½²½£º
ÓÃLinuxϵͳµÄrootÓû§µÇ¼ϵͳ£¬È»ºó£º
£¨1£©¿ª·Å3306¶Ë¿ÚµÄÔ¶³ÌÁ¬½ÓȨÏÞ£º
ÔÚ“-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited”ÕâÒ»ÐеÄÉÏÃæ£¨×¢Ò⣬һ¶¨ÊÇÉÏÃæ£©£¬Ìí¼ÓÈçÏ ......
ÔÚlinuxϲ鿴½ø³Ì´ó¼Ò¶¼»áÏëµ½Óà ps -ef|grep XXX
¿ÉÊÇ¿´µ½µÄ²»ÊÇȫ·¾¶£¬Ôõô¿´È«Â·¾¶ÄØ£¿
ÿ¸ö½ø³ÌÆô¶¯Ö®ºóÔÚ /procÏÂÃæÓÐÒ»¸öÓÚpid¶ÔÓ¦µÄ·¾¶
ÀýÈ磺ps -ef|grep python
ÏÔʾ£ºoracle 4431 4366 0 18:56 pts/2 00:00:00 python Server.py
4431¾ÍÊǽø³ÌºÅ
µ½/pro ......