pdl_handle = dlopen(lib_file_path, RTLD_LAZY);
pfFunval = dlsym(pdl_handle, call_info->func_name);
gcc -fPIC -shared libdemo.c -o libdemo.so
gcc -rdynamic -o app fei_agent_func.c -ldl
pdl_handle = dlopen(lib_file_path, RTLD_LAZY);
pfFunval = dlsym(pdl_handle, call_info->func_name);
gcc -fPIC -shared libdemo.c -o libdemo.so
gcc -rdynamic -o app fei_agent_func.c -ldl