* dw2gencfi.c: Include dwarf2dbg.h.

	* dw2gencfi.c: Include dwarf2dbg.h.
	(DWARF2_FORMAT): Define if not defined.
	(dot_cfi_sections): New function.
	(cfi_pseudo_table): Handle .cfi_sections.
	(CFI_EMIT_eh_frame, CFI_EMIT_debug_frame): Define.
	(cfi_sections): New variable.
	(output_cie, output_fde, select_cie_for_fde): Add eh_frame
	argument, add supporting for outputting .debug_frame
	section.
	(cfi_change_reg_numbers): New function or macro.
	(cfi_finish): Only emit .eh_frame if
	cfi_sections & CFI_EMIT_eh_frame.  Emit .debug_frame if
	cfi_sections & CFI_EMIT_debug_frame.
	* config/tc-ppc.h (md_reg_eh_frame_to_debug_frame): Define.
	* doc/as.texinfo (CFI directives): Document .cfi_sections.