(mmo_write_chunk): Store trailing byte in bfd buffer; don't
zero-pad. Use input to fill up non-empty bfd buffer.
(mmo_flush_chunk): New function.
(mmo_write_loc_chunk): Add parameter last_vmap, all callers
changed. Don't emit location specifier if VMA is same as
*LAST_VMAP after omitting leading zero contents. Call
mmo_flush_chunk before emitting location specifier.
(mmo_write_loc_chunk_list): Call mmo_flush_chunk when finished
with mmo_write_loc_chunk calls.
(mmo_internal_write_section): Call mmo_flush_chunk after
mmo_write_chunk.
(mmo_write_symbols_and_terminator): Move :Main to first position
in symbol array. Add faked one if it does not exist if there are
other symbols. Don't add it if there are no symbols at all. Move
out test for value of :Main from symbol loop. Rename table
fakemain to maintable and variable mainsym to fakemain.
R_MMIX_BASE_PLUS_OFFSET relocs.
* elf64-mmix.c (struct bpo_reloc_section_info, struct
bpo_reloc_request, struct bpo_greg_section_info): New.
(mmix_elf_check_common_relocs, mmix_elf_gc_sweep_hook,
bpo_reloc_request_sort_fn, mmix_elf_relax_section,
_bfd_mmix_check_all_relocs,
_bfd_mmix_prepare_linker_allocated_gregs,
_bfd_mmix_finalize_linker_allocated_gregs): New functions.
(elf_mmix_howto_table): Correct src_mask for most relocs.
(mmix_elf_perform_relocation) <case R_MMIX_BASE_PLUS_OFFSET>: New
case.
(mmix_final_link_relocate) <case R_MMIX_BASE_PLUS_OFFSET>: New
case. Fix typo in comment. New label do_mmix_reloc.
(mmix_elf_check_relocs): Abuse bfd_link_info member base_file to
store first object file with a base-plus-offset reloc. Call
mmix_elf_check_common_relocs for the part common with mmo.
(mmix_elf_final_link): Write out linker-allocated register
contents section.
(elf_backend_gc_sweep_hook): Define.
(bfd_elf64_bfd_relax_section): Define.
* mmo.c: Don't include <ctype.h>
(mmo_init): Correct init-once logic.