What do you mean by dynamic loading

Question

What do you mean by dynamic loading?

Answer 1

To get the better memory-utilization, the dynamic loading is utilized. With the dynamic loading, a routine is not loaded till it is called. All the routines are kept on disk in a relocatable load format. The main program is loaded to the memory and is executed. Whenever a routine requires calling the other routine, the calling routine first check to see if the other routine has been loaded. If not, the relocatable linking loader is called to load the desired routine to the memory and to update the program’s address tables to reflect this change. Then control is passed to the newly loaded routine.