* ldlang.c (lang_add_section): Don't twidlle SEC_EXCLUDE here.

	* ldlang.c (lang_add_section): Don't twidlle SEC_EXCLUDE here.
	(output_section_callback): Nor SEC_KEEP here.
	(gc_section_callback): Twiddle SEC_EXCLUDE here.
	(lang_gc_wild): Delete.  Fold into..
	(lang_gc_sections_1): ..here.  Only call bfd_gc_sections when garbage
	collecting.
	(lang_process): Always call lang_gc_sections.
	(lang_place_orphans): Handle SEC_EXCLUDE sections.
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Remove
	SEC_EXCLUDE code.