problem in dynamically loading the shared object
 

I am creating the shared object that have to be dynamically loaded during run time using dlopen(), I am implementing _init() method .
But when I am making this shared object the
following error message will come

multiple definitions of _init() , first find in
C Run Time library crti.o

our definition of _init()

extern "C"
void _init()
{
}

My guess is you probably have dragged in an unecessary (system) lib into your share lib building line in your make file. That lib is also a shared lib and it has a _init() conflicting with yours.

One shared lib can only have one _init.