Relocation in programming c

Relocation

Relocation means adjustment of all address-dependent locations, such as address constant, to correspond to the allocated space, which means simple modification of the object program so that it can be loaded at an address different from the location originally specified. Relocation
is more than simply moving a program from one area to another in the main memory. It refers to the adjustment of address fields. The task of relocation is to add some constant value to each relative address in the memory segment.