Are static(.a) and dynamic library(.so) always relocatable in linux?

Question

I know that object files(.o) are always relocatable,

what about .a and .so files?

Answer 1

A .a file is just an archive of other files. Typically those are .o files, to which you already know the answer. They don't have to be though - they don't have to be object code at all in fact - they can literally be any files you like.

A .so file has to be relocatable to work as it has to be able to be loaded at different addresses in different processes depending on what address is available at runtime.