Are you perhaps confusing it with SPARC? That one does have dozens of different relocation types because its instructions can have displacements of about 10 dif

Are you perhaps confusing it with SPARC? That one does have dozens of different relocation types because its instructions can have displacements of about 10 different widths. As for interesting stuff... relative jumps are normally not used for jumping to a symbol defined in a different object, and base address computations are trivially supported by sticking a special symbol at the beginning of every object file.