This patch adds a few hooks to BFD. * bfd/coffcode.h (coff_write_relocs): Add predicate macro to detect if a symbol should be treated as a relative relocation and have its index set to "-1" * bfd/coffswap.h (coff_swap_sym_in/out): Added COFF_ADJUST_SYM_IN/OUT_POST to allow final adjustments to the symbol being swapped.