* elf-bfd.h (struct elf_backend_data): Remove "bfd *" and add

	* elf-bfd.h (struct elf_backend_data): Remove "bfd *" and add
	"elflink_hash_entry *" param to elf_backend_link_output_symbol_hook.
	Add "elflink_hash_entry *" param to elf_backend_output_arch_syms.
	* elflink.h (elf_link_output_sym): Add "elflink_hash_entry *" param,
	and pass to output_symbol_hook.
	(elf_bfd_final_link): Adjust elf_link_output_sym calls.
	(elf_link_output_extsym): Likewise.
	(elf_link_input_bfd): Likewise.
	* elf32-sh64.c (sh64_elf_link_output_symbol_hook): Adjust.
	* elf32-v850.c (v850_elf_link_output_symbol_hook): Likewise.
	* elf64-mmix.c (mmix_elf_link_output_symbol_hook): Likewise.
	* elf64-sh64.c (sh64_elf64_link_output_symbol_hook): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_link_output_symbol_hook): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_link_output_symbol_hook): Likewise.
	* elf64-sparc.c (sparc64_elf_output_arch_syms): Likewise.
	* elf64-hppa.c (elf64_hppa_link_output_symbol_hook): Likewise.
	Validate dynh->h against h.
	* elf64-ppc.c (struct ppc_link_hash_entry): Add adjust_done bitfield.
	(link_hash_newfunc): Init it.
	(adjust_opd_syms): New function.
	(ppc64_elf_edit_opd): Set adjust_done when global .opd sym adjusted.
	Set opd.adjust for all .opd relocs.  Call adjust_opd_syms.
	(ppc64_elf_tls_optimize): Adjust possible .opd sym values here.
	(ppc64_elf_relocate_section): Also adjust syms not a multiple of 24.
	(ppc64_elf_output_symbol_hook): New function.
	(elf_backend_link_output_symbol_hook): Define.