Add elfxx-x86.h and elfxx-x86.c

Add elfxx-x86.h and elfxx-x86.c

Move common codes in elf32-i386.c and elf64-x86-64.c to elfxx-x86.c.

	* Makefile.am (BFD32_BACKENDS): Add elfxx-x86.lo.
	(BFD64_BACKENDS): Likewise.
	(BFD32_BACKENDS_CFILES): Add elfxx-x86.c.
	(BFD64_BACKENDS_CFILES): Likewise.
	* Makefile.in: Regenerated.
	* configure.ac (bfd_backends): Add elfxx-x86.lo together with
	elf32-i386.lo and elf64-x86-64.lo.
	* configure: Regenerated.
	* elf32-i386.c: Include "elfxx-x86.h" instead of "sysdep.h",
	"bfd.h", "bfdlink.h", "libbfd.h", "elf-bfd.h", "bfd_stdint.h",
	"objalloc.h" and "hashtab.h".
	(ELIMINATE_COPY_RELOCS): Removed.
	(UNDEFINED_WEAK_RESOLVED_TO_ZERO):Likewise.
	(SYMBOL_NO_COPYRELOC): Likewise.
	(elf_i386_link_hash_entry): Likewise.
	(GOT_UNKNOWN): Likewise.
	(GOT_NORMAL): Likewise.
	(GOT_TLS_GD): Likewise.
	(elf_i386_hash_entry): Likewise.
	(elf_i386_obj_tdata): Likewise.
	(elf_i386_tdata): Likewise.
	(elf_i386_local_got_tls_type): Likewise.
	(elf_i386_local_tlsdesc_gotent): Likewise.
	(elf_i386_hash_table): Likewise.
	(elf_i386_link_hash_newfunc): Likewise.
	(elf_i386_local_htab_hash): Likewise.
	(elf_i386_local_htab_eq): Likewise.
	(elf_i386_get_local_sym_hash): Likewise.
	(elf_i386_link_hash_table_free): Likewise.
	(elf_i386_copy_indirect_symbol): Likewise.
	(elf_i386_fixup_symbol): Likewise.
	(elf_i386_readonly_dynrelocs): Likewise.
	(elf_i386_always_size_sections): Likewise.
	(elf_i386_set_tls_module_base): Likewise.
	(elf_i386_dtpoff_base): Likewise.
	(compare_relocs): Likewise.
	(elf_i386_hash_symbol): Likewise.
	(elf_i386_parse_gnu_properties): Likewise.
	(elf_i386_merge_gnu_properties): Likewise.
	(elf_i386_link_check_relocs): Likewise.
	(elf_i386_merge_symbol_attribute): Likewise.
	(bfd_elf32_bfd_link_check_relocs): Likewise.
	(elf_backend_copy_indirect_symbol): Likewise.
	(elf_backend_always_size_sections): Likewise.
	(elf_backend_omit_section_dynsym): Likewise.
	(elf_backend_hash_symbol): Likewise.
	(elf_backend_fixup_symbol): Likewise.
	(elf_backend_parse_gnu_properties): Likewise.
	(elf_backend_merge_gnu_properties): Likewise.
	(elf_backend_merge_symbol_attribute): Likewise.
	(elf_i386_mkobject): Updated.
	(elf_i386_link_hash_table_create): Likewise.
	(elf_i386_check_tls_transition): Likewise.
	(elf_i386_tls_transition): Likewise.
	(elf_i386_convert_load_reloc): Likewise.
	(elf_i386_check_relocs): Likewise.
	(elf_i386_adjust_dynamic_symbol): Likewise.
	(elf_i386_allocate_dynrelocs): Likewise.
	(elf_i386_convert_load): Likewise.
	(elf_i386_size_dynamic_sections): Likewise.
	(elf_i386_relocate_section): Likewise.
	(elf_i386_finish_dynamic_symbol ): Likewise.
	(elf_i386_finish_dynamic_sections): Likewise.
	(elf_i386_output_arch_local_syms): Likewise.
	(elf_i386_get_synthetic_symtab): Likewise.
	(elf_i386_link_setup_gnu_properties): Likewise.
	(elf_i386_link_hash_table): Use elf_x86_link_hash_table, instead
	of elf_link_hash_table, as base.
	(elf_i386_next_tls_desc_index): New.
	(elf_i386_srelplt2): Likewise.
	(elf_i386_plt): Likewise.
	(elf_i386_lazy_plt): Likewise.
	(elf_i386_non_lazy_plt): Likewise.
	* elf32-x86-64.c: Include "elfxx-x86.h" instead of "sysdep.h",
	"bfd.h", "bfdlink.h", "libbfd.h", "elf-bfd.h", "bfd_stdint.h",
	"objalloc.h" and "hashtab.h".
	(ELIMINATE_COPY_RELOCS): Removed.
	(UNDEFINED_WEAK_RESOLVED_TO_ZERO):Likewise.
	(SYMBOL_NO_COPYRELOC): Likewise.
	(elf_x86_64_link_hash_entry): Likewise.
	(GOT_UNKNOWN): Likewise.
	(GOT_NORMAL): Likewise.
	(GOT_TLS_GD): Likewise.
	(elf_x86_64_hash_entry): Likewise.
	(elf_x86_64_obj_tdata): Likewise.
	(elf_x86_64_tdata): Likewise.
	(elf_x86_64_local_got_tls_type): Likewise.
	(elf_x86_64_local_tlsdesc_gotent): Likewise.
	(elf_x86_64_hash_table): Likewise.
	(elf_x86_64_link_hash_newfunc): Likewise.
	(elf_x86_64_local_htab_hash): Likewise.
	(elf_x86_64_local_htab_eq): Likewise.
	(elf_x86_64_get_local_sym_hash): Likewise.
	(elf_x86_64_link_hash_table_free): Likewise.
	(elf_x86_64_copy_indirect_symbol): Likewise.
	(elf_x86_64_fixup_symbol): Likewise.
	(elf_x86_64_readonly_dynrelocs): Likewise.
	(elf_x86_64_always_size_sections): Likewise.
	(elf_x86_64_set_tls_module_base): Likewise.
	(elf_x86_64_dtpoff_base): Likewise.
	(compare_relocs): Likewise.
	(elf_x86_64_merge_symbol_attribute): Likewise.
	(elf_x86_64_hash_symbol): Likewise.
	(elf_x86_64_parse_gnu_properties): Likewise.
	(elf_x86_64_merge_gnu_properties): Likewise.
	(elf_x86_64_link_check_relocs): Likewise.
	(elf_backend_copy_indirect_symbol): Likewise.
	(elf_backend_always_size_sections): Likewise.
	(bfd_elf64_bfd_link_check_relocs): Likewise.
	(elf_backend_merge_symbol_attribute): Likewise.
	(elf_backend_hash_symbol): Likewise.
	(elf_backend_omit_section_dynsym): Likewise.
	(elf_backend_fixup_symbol): Likewise.
	(elf_backend_parse_gnu_properties): Likewise.
	(elf_backend_merge_gnu_properties): Likewise.
	(bfd_elf32_bfd_link_check_relocs): Likewise.
	(elf_x86_64_mkobject): Updated.
	(elf_x86_64_link_hash_table_create): Likewise.
	(elf_x86_64_check_tls_transition): Likewise.
	(elf_x86_64_tls_transition): Likewise.
	(elf_x86_64_convert_load_reloc): Likewise.
	(elf_x86_64_check_relocs): Likewise.
	(elf_x86_64_adjust_dynamic_symbol): Likewise.
	(elf_x86_64_allocate_dynrelocs): Likewise.
	(elf_x86_64_convert_load): Likewise.
	(elf_x86_64_size_dynamic_sections): Likewise.
	(elf_x86_64_relocate_section): Likewise.
	(elf_x86_64_finish_dynamic_symbol ): Likewise.
	(elf_x86_64_finish_dynamic_sections): Likewise.
	(elf_x86_64_output_arch_local_syms): Likewise.
	(elf_x86_64_get_synthetic_symtab): Likewise.
	(elf_x86_64_link_setup_gnu_properties): Likewise.
	(elf_x86_64_link_hash_table): Use elf_x86_link_hash_table,
	instead of elf_link_hash_table, as base.
	(elf_x86_64_next_tls_desc_index): New.
	(elf_x86_64_srelplt2): Likewise.
	(elf_x86_64_plt): Likewise.
	(elf_x86_64_lazy_plt): Likewise.
	(elf_x86_64_non_lazy_plt): Likewise.
	* elfxx-x86.c: New file.
	* elfxx-x86.h: Likewise.