linux ¶¯Ì¬¼ÓÔØ ¶¯Ì¬Á´½Ó¿â
¶¯Ì¬¿âµÄÏÔʽµ÷ÓÃ
ÏÔʽµ÷Óõĺ¬ÒåÊÇ´úÂë³öÏÖ¿âÎļþÃû£¬Óû§ÐèÒª×Ô¼ºÈ¥
´ò¿ªºÍ¹ÜÀí¿âÎļþ¡£ÆäÒªµãΪ:
¢Å°Ñdlfcn.hϵͳͷÎļþ°üº¬½øÀ´
¢ÆÓÃdlopenº¯Êý´ò¿ª¿âÎļþ£¬²¢Ö¸¶¨´ò¿ª·½Ê½
dllopeµÄµÄµÚÒ»¸ö²ÎÊýΪ¹²Ïí¿âµÄÃû³Æ£¬½«»áÔÚÏÂÃæλÖòéÕÒÖ¸¶¨µÄ¹²Ïí¿â¡£
¢Ù»·¾³±äÁ¿LD_LIBRARY_PATHÁгöµÄÓ÷ֺżä¸ôµÄËùÓÐĿ¼¡£
¢ÚÎļþ/etc/ld.so.cacheÖÐÕÒµ½µÄ¿âµÄÁÐ±í£¬ÓÉldconfigÃüÁîˢС£
¢ÛĿ¼usr/lib¡£
¢ÜĿ¼/lib¡£
¢Ýµ±Ç°Ä¿Â¼¡£
µÚ¶þ¸ö²ÎÊýΪ´ò¿ª¹²Ïí¿âµÄ·½Ê½¡£ÓÐÁ½¸öÈ¡Öµ
¢ÙRTLD_NOW£º½«¹²Ïí¿âÖеÄËùÓк¯Êý¼ÓÔص½ÄÚ´æ
¢ÚRTLD_LAZY£º»áÍƺó¹²Ïí¿âÖеĺ¯ÊýµÄ¼ÓÔزÙ×÷£¬Ö±µ½µ÷ÓÃdlsym()ʱ·½¼ÓÔØijº¯Êý
¢ÇÓÃdlerror()º¯Êý²âÊÔÊÇ·ñ´ò¿ª³É¹¦£¬²¢½øÐдíÎó´¦Àí;
¢ÈÓÃdlsym»ñµÃº¯ÊýµØÖ·,´æ·ÅÔÚÒ»¸öº¯ÊýÖ¸ÕëÖÐ
¢ÉÓûñµÃµÄº¯ÊýÖ¸Õë½øÐк¯Êýµ÷Óá£
¢Ê³ÌÐò½áÊøʱÓÃdlclose¹Ø±Õ´ò¿ªµÄ¶¯Ì¬¿â£¬·ÀÖ¹×ÊԴй¶¡£
¢ËÓÃldconfig¹¤¾ß°Ñ¶¯Ì¬¿âµÄ·¾¶¼Óµ½ÏµÍ³¿âÁбíÖÐ
1¡¢±àд²âÊÔÎļþ
//main.c ²âÊÔ¶¯Ì¬¿âÏÔʽµ÷ÓõijÌÐò
#include<dlfcn.h> //ÓÃÓÚ¶¯Ì¬¿â¹ÜÀíµÄϵͳͷÎļþ
#include "myalib.h" //Òª°Ñº¯ÊýµÄÍ·Îļþ°üº¬½øÀ´£¬·ñÔò±àÒëʱ»á±¨´í
int main(int argc,char* argv[])
{
//ÉùÃ÷¶ÔÓ¦µÄº¯ÊýµÄº¯ÊýÖ¸Õë
void (*pTest)();
//¼ÓÔض¯Ì¬¿â
void *pdlHandle = dlopen("libtest.so", RTLD_LAZY);
//´íÎó´¦Àí
if(pdlHandle == NULL ) {
printf("Failed load library\n");
return -1;
}
char* pszErr = dlerror();
if(pszErr != NULL)
{
printf("%s\n", pszErr);
return -1;
&nbs
Ïà¹ØÎĵµ£º
LinuxÐéÄâ»úÏ°²×°VMware Tools
VMware ToolsËùÔÚλÖãº
VMware °²×°Â·¾¶
\VMware\VMwareWorkstation\linux.iso
1.ÐÞ¸ÄrootÓû§ÃÜÂë
10:32:36 zhangzhen@zhangzhen-desktop:~$ sudo passwd root
[sudo] password for zhangzhen:
ÊäÈëÐ嵀 UNIX ¿ÚÁ
ÖØÐÂÊäÈëÐ嵀 UNIX ¿ÚÁ
passwd£ºÒѳɹ¦¸üÐÂÃÜÂë
10:33 ......
ÔÚLinuxÏÂJdkµÄ°²×°ºÍJava»·¾³±äÁ¿µÄÉèÖÃ
ÔÚLinuxÏÂJdkµÄ°²×°ºÍJava»·¾³±äÁ¿µÄÉèÖÃ
1¡¢µ½www.sun.comÏÂÔØ×îа汾µÄj2sdk for linux
2¡¢°²×°jdk1.4.2 for linux,ÒÔÏÂÊÇÔÚRedhat Linux 9ÏÂΪÀý£º
ÒÔrootÉí·ÝµÇ¼
(1)´ò¿ªÒ»¸öÖÕ¶Ë
(2)ÊäÈëÃüÁîls -l ²é¿´°²×°ÎļþµÄȨÏÞ
......
×÷Õߣºdio
email: hao@peng.com.cn
ÈÕÆÚ£º8/21/2001 1:00:47 PM
ÄÚÈÝ£º
±àÒë
ÔËÐÐ gdb
µ÷ÊԻỰʾÀý
ʹÓöϵã
¸ü¶à¶ÏµãºÍ¹Û²ìµã
Core Îļþ
¶ÑÕ»¸ú×Ù
Á¬½Óµ½ÆäËü½ø³Ì
ÆäËüС¼¼ÇÉ
½áÊøÓï
²Î¿¼×ÊÁÏ
¹ØÓÚ×÷Õß
GNU µ÷ÊÔÆ÷¼ò½é
×÷Õß:David Seager
Linux µÄ´ó²¿·ÖÌØÉ«Ô´×ÔÓÚ shell µÄ GNU µ÷ÊÔÆ÷ ......
LinuxϵͳÏ£¬ÐèÒª´óÁ¿µÄÃüÁîÐÐÑ¡ÏÈç¹û×Ô¼ºÊÖ¶¯½âÎöËûÃǵĻ°ÊµÔÚÊÇÓÐÎ¥Èí¼þ¸´ÓõÄ˼Ï룬²»¹ý»¹ºÃ£¬GNU C libraryÁô¸øÎÒÃÇÒ»¸ö½âÎöÃüÁîÐеĽӿÚ(X/Open¹æ·¶)£¬ºÃºÃʹÓÃËü¿ÉÒÔʹÄãµÄ³ÌÐò¸Ä¹Û²»ÉÙ¡£
ʹÓÃgetopt_long()ÐèÒªÒýÈëÍ·Îļþ
#include <getopt.h>
ÏÖÔÚÎÒÃÇʹÓÃÒ»¸öÀý×ÓÀ´ËµÃ÷Ëü ......
Ëæ×ÅLinuxÓ¦ÓõÄÀ©Õ¹Ðí¶àÅóÓÑ¿ªÊ¼½Ó´¥Linux£¬¸ù¾ÝѧϰWindwosµÄ¾ÑéÍùÍùÓÐһЩãȻµÄ¸Ð¾õ£º²»Öª´ÓºÎ´¦¿ªÊ¼Ñ§Æð¡£ÕâÀï½éÉÜѧϰLinuxµÄһЩ½¨Òé¡£
Ò»¡¢´Ó»ù´¡¿ªÊ¼£º ³£³£ÓÐЩÅóÓÑÔÚLinuxÂÛ̳ÎÊһЩÎÊÌ⣬²»¹ý£¬ÆäÖдó¶àÊýµÄÎÊÌⶼÊǺܻù´¡µÄ¡£ÀýÈ磺ΪʲôÎÒʹÓÃÒ»¸öÃüÁîµÄʱºò£¬ÏµÍ³¸æËßÎÒÕÒ²»µ½¸ÃĿ¼£¬ÎÒÒªÈçºÎÏÞÖÆÊ¹Ó ......