* dwarf2-frame.c (struct dwarf2_fde): Add eh_frame_p.

	* dwarf2-frame.c (struct dwarf2_fde): Add eh_frame_p.
	(execute_cfa_program): Add parameter eh_frame_p.  Call
	dwarf2_frame_eh_frame_regnum when true.
	(dwarf2_frame_cache): Pass eh_frame_p from fde to
	execute_cfa_program.
	(decode_frame_entry_1): Call dwarf2_frame_eh_frame_regnum when
	processing .eh_frame.  Copy eh_frame_p to the new fde.
	(struct dwarf2_frame_ops): Add eh_frame_regnum.
	(dwarf2_frame_set_eh_frame_regnum): Define.
	(dwarf2_frame_eh_frame_regnum): Define.

	* dwarf2-frame.h (dwarf2_frame_set_eh_frame_regnum): Declare.
	(dwarf2_frame_eh_frame_regnum): Declare.