* elf32-cris.c (cris_elf_relocate_section) <case R_CRIS_16_GOTPLT,

	* elf32-cris.c (cris_elf_relocate_section) <case R_CRIS_16_GOTPLT,
	R_CRIS_16_GOTPLT>: Also error if there's no PLT for a symbol
	not defined by the executable, or defined in a DSO.
	<eliding run-time relocation of .got>: Initialize GOT entry for a
	function symbol or ELF_LINK_HASH_NEEDS_PLT statically in an
	executable.
	(cris_elf_gc_sweep_hook): Improve fallthrough marking.
	(elf_cris_try_fold_plt_to_got): Improve head comment.  Do not fold
	a PLT reloc to GOT for an executable.
	(elf_cris_adjust_dynamic_symbol): Only fold a .got.plt entry with
	.got for a DSO and explain why.
	(elf_cris_discard_excess_program_dynamics): Also lose GOT-relocs
	and unreferenced symbols for which a PLT is defined.  Adjust
	dynamic-symbol pruning correspondingly, to make sure we don't lose
	a dynamic symbol also defined by a DSO.