* elf.c (bfd_section_from_shdr): Check bfd_alloc return.

	* elf.c (bfd_section_from_shdr): Check bfd_alloc return.
	(elfcore_write_note): Check realloc return.
	* elflink.c (_bfd_elf_link_find_version_dependencies): Check
	bfd_zalloc return.
	(_bfd_elf_link_assign_sym_version): Check bfd_malloc return.
	(elf_link_add_object_symbols): Likewise.
	(struct hash_codes_info): New.
	(elf_collect_hash_codes): Return bfd_malloc error.
	(struct collect_gnu_hash_codes): Add "error".
	(elf_collect_gnu_hash_codes): Return bfd_malloc error.
	(bfd_elf_size_dynamic_sections): Check return status of
	_bfd_elf_link_find_version_dependencies.
	(bfd_elf_size_dynsym_hash_dynstr): Adjust for elf_collect_hash_codes
	and elf_collect_gnu_hash_codes changes.
	(elf_sym_name_compare): Formatting.
	(elf_fixup_link_order): Use bfd_malloc, not xmalloc.