* configure.in (bfd_elf32_ia64_big_vec, bfd_elf32_ia64_hpux_big_vec)
(bfd_elf64_ia64_big_vec, bfd_elf64_ia64_hpux_big_vec)
(bfd_elf64_ia64_little_vec, bfd_elf64_ia64_vms_vec): Add elfxx-ia64.lo
* Makefile.am (BFD64_BACKENDS): Add elfxx-ia64.lo
(BFD64_BACKENDS_CFILES): Add elfxx-ia64.c
(elf32-ia64.c): Created from elfnn-ia64.c
(elf64-ia64.c): Likewise.
* elfxx-ia64.h: New file.
* elfxx-ia64.c: Split with elfnn-ia64.c. Keep only the following
functions.Includes elfxx-ia64.h.
(elfNN_ia64_reloc): Renames to ia64_elf_reloc. Adjust error message.
(IA64_HOWTO): Adjust.
(lookup_howto): Renames to ia64_elf_lookup_howto. Make it public.
(elfNN_ia64_reloc_type_lookup): Renames to
ia64_elf_reloc_type_lookup. Make it public. Adjust calls.
(elfNN_ia64_reloc_name_lookup): Renames to
ia64_elf_reloc_name_lookup. Make it public.
(elfNN_ia64_relax_br): Renames to ia64_elf_relax_br. Make it public.
(elfNN_ia64_relax_brl): Renames to ia64_elf_relax_brl. Make it
public.
(elfNN_ia64_relax_ldxmov): Renames to ia64_elf_relax_ldxmov.
Move it and make it public. Move prototype to elfxx-ia64.h
(elfNN_ia64_install_value): Renames to ia64_elf_install_value.
Move prototype to elfxx-ia64.h
* elfnn-ia64.c: New file, split from elfxx-ia64.c.
(elfNN_ia64_info_to_howto): Adjust calls.
(elfNN_ia64_relax_section): Adjust calls.
(count_dyn_reloc): Fix typo.
(elfNN_ia64_relocate_section): Adjust calls.
(elfNN_ia64_finish_dynamic_symbol): Likewise.
(bfd_elfNN_bfd_reloc_type_lookup)
(bfd_elfNN_bfd_reloc_name_lookup): Adjust macros.
