lib: don't try to do symbolic the objects of 0 size
lib: don't try to do symbolic the objects of 0 size

when the size is 0, the returned pointer may not point
to a valid object

Signed-off-by: Marek Chalupa <2ec68d8033ee11c75b31c3efa204dbc26c692ff1@fi.muni.cz>

staticafi/symbiotic,staticafi/symbiotic,staticafi/symbiotic,staticafi/symbiotic