DWARF-5 basic functionality

DWARF-5 basic functionality

binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (fetch_indirect_line_string): New function.
	(abbrev_attr): New field implicit_const.
	(add_abbrev_attr): New parameter implicit_const.
	(process_abbrev_section): Support DW_FORM_implicit_const.
	(decode_location_expression): Support DW_OP_entry_value.
	(read_and_display_attr_value): Add parameter implicit_const.  Support
	DW_FORM_line_strp and DW_FORM_implicit_const.
	(read_and_display_attr): Add parameter implicit_const.
	(process_debug_info): Support line_str and DWARF-5.
	(read_debug_line_header): Support DWARF-5.
	(display_formatted_table): New function.
	(display_debug_lines_raw): New parameter file.  Support DWARF-5.
	(display_debug_lines_decoded): New parameter fileptr.  Support DWARF-5.
	(display_debug_lines): Pass file parameter.
	(display_debug_macro): Update read_and_display_attr_value caller.
	(display_debug_abbrev): Support DW_FORM_implicit_const.
	(display_loclists_list): New function.
	(display_loc_list): Support .debug_loclists.
	(display_debug_ranges_list): New function from display_debug_ranges.
	(display_debug_rnglists_list): New function.
	(display_debug_ranges): Support .debug_rnglists.
	(debug_displays): Add .debug_line_str, .debug_loclists and
	.debug_rnglists.
	* dwarf.h: Include dwarf2.h
	(DWARF2_Internal_LineInfo): Add li_offset_size.
	(DWARF2_Internal_CompUnit): Add cu_unit_type.
	(enum dwarf_section_display_enum): Add line_str.
	* readelf.c (process_section_headers): Add rnglists and loclists.