* config/tc-sh.c (md_pseudo_table): Add "uses".

	* config/tc-sh.c (md_pseudo_table): Add "uses".
	(s_uses): New static function.
	(sh_coff_frob_file): New function.
	(md_convert_frag): Call subseg_change before calling fix_new.
	(sh_handle_align): New function.
	(SWITCH_TABLE): Define.
	(sh_force_relocation): New function.
	(md_apply_fix): Handle R_SH_USES, R_SH_COUNT and R_SH_ALIGN.
	(sh_coff_reloc_mangle): Likewise.  Also handle switch table
	entries.
	* config/tc-sh.h (HANDLE_ALIGN): Define.
	(sh_handle_align): Declare.
	(TC_FORCE_RELOCATION): Define.
	(sh_force_relocation): Declare.
	(TC_COUNT_RELOC): Simplify; rely on TC_FORCE_RELOCATION instead.
	(tc_frob_file): Define.
	(sh_coff_frob_file): Declare.
	* config/obj-coff.c (write_object_file): Call tc_frob_file if it
	is defined.
	(fixup_mdeps): Call HANDLE_ALIGN if it is defined.
	(TC_FORCE_RELOCATION): Define if not defined.
	(fixup_segment): Use TC_FORCE_RELOCATION to decide whether to
	clear the symbol fields of fixP.