* ldgram.y (DATA_SEGMENT_RELRO_END): Add one argument.

	* ldgram.y (DATA_SEGMENT_RELRO_END): Add one argument.
	* scripttempl/elf.sc (DATA_SEGMENT_RELRO_END): Add 0 as first
	argument.
	(DATA_SEGMENT_RELRO_GOTPLT_END): Pass $SEPARATE_GOTPLT as first
	and . as second argument.
	(GOTPLT): Move $DATA_SEGMENT_RELRO_GOTPLT_END before the section.
	* ldexp.c (fold_unary): Remove DATA_SEGMENT_RELRO_END handling here.
	(fold_binary): Add it here.  Insert padding to make relro_end
	COMMONPAGESIZE bytes aligned.  For DATA_SEGMENT_ALIGN in
	exp_dataseg_relro_adjust phase just use previously computed
	exp_data_seg.base.
	* ldlang.c (lang_size_sections): Set exp_data_seg.base for
	relro_adjust here.  Call lang_size_sections_1 once more if there
	was too big padding at DATA_SEGMENT_RELRO_END.
	* ld.texinfo (DATA_SEGMENT_RELRO_END): Add documentation.