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hello:
I create a libmydll.so file,and now I want to invoke it.But I do not use
"dlopen()" to invoke it. How to invoke ?
thanks

Make sure the directory your .so file is stored is listed in /etc/ld.so.conf. Then (as root) run "ldconfig" and try again.

hello
I try it ,but not success ???

Try following all steps:

1. Compile/link source/object files of your shared library with -fpic, -shared, -Wl,-soname

age.c

Code:

/* one simple function */

int age(){ return 25; }

gcc -fpic -shared -Wl,-soname=libage.so
This gives libage.so, a shared lib.

2. Compile/link your application source with -L and -l

myage.c

Code:

#include <stdio.h>



extern int age(); /* this line is normally in lib's header file */



int main(int argc, char *argv[]){

  printf("My age is %d.\n", age());

  return 0;

}

gcc -L. -lage -o myage myage.c
This gives myage exe file, dynamically linked to libage.so in *current directory*.

3. Run it with LD_LIBRARY_PATH (if libage.so is not going to be in one of listed folders in your /etc/ld.so.conf)

linux/tmp$ LD_LIBRARY_PATH=. ./myage
My age is 25.

hello,
I try ,but not success .why???

why

everyone
why not success in my comuter>>>>>