* elf64-ppc.c (TLS_GD_LD): Don't define..

	* elf64-ppc.c (TLS_GD_LD): Don't define..
	(TLS_GD): ..define this instead and update all uses.
	(TLS_TPRELGD): Define.
	(ppc64_elf_link_hash_table_create): Tweak initialization of
	init_refcount and init_offset.
	(ppc64_elf_check_relocs): Add one extra element to t_symndx array.
	Mark second slot of GD or LD toc entries.
	(get_tls_type): Return an int.  Distinguish toc GD and LD entries
	from other tls types.
	(ppc64_elf_tls_setup): New function, split out from..
	(ppc64_elf_tls_optimize): ..here.  Don't optimize when symbols are
	defined in a dynamic object.  Fix LD optimization.  Don't set TLS_TPREL
	on GD->IE optimization, use TLS_TPRELGD instead.  Use get_tls_type
	return value to properly decide whether toc GD and LD entries can
	optimize away __tls_get_addr call.  Check next reloc after DTPMOD64
	to determine GD or LD rather than looking at TLS_LD flag.  Don't
	attempt to adjust got entry tls_type here..
	(allocate_dynrelocs): ..instead, adjust got entry tls_type here, and
	look for possible merges.
	(ppc64_elf_size_dynamic_sections): Adjust local got entries for
	optimization.
	(ppc64_elf_size_stubs): Tweak __tls_get_addr fudge.
	(ppc64_elf_relocate_section): Rename some vars to better reflect usage.
	Make use of return value from get_tls_type to properly detect GD and
	LD optimizations.  Split tlsld/gd hi/ha from lo/ds case.  Don't
	handle tls_get_addr removal when looking at REL24 relocs, do it when
	looking at the previous reloc.  Check reloc after DTPMOD64 to determine
	GD or LD.
	* elf64-ppc.h (ppc64_elf_tls_setup): Declare.