Makes objdump --dwarf as flexible as readelf --debug-dump

[Nick Clifton]

Hi Tristan,

> currently objdump --dwarf dumps all dwarf sections while readelf --dwarf
> can dump only selected one.

Presumably you mean that "objdump --dwarf" will only dump all dwarf 
sections whereas "readelf --debug-dump" has the option of specifying 
which dwarf sections to dump.

> binutils/
> 2009-02-03  Tristan Gingold  <gingold@adacore.com>
> 
> 	* NEWS: Mention feature match between objdump and readelf for dumping
> 	dwarf info.
> 
> 	* doc/binutils.texi (objdump): Document -W/--dwarf improvments to
> 	objdump.
> 
> 	* objdump.c (usage): Update documentation for -W/--dwarf.
> 	(enum option_values): Add OPTION_DWARF.
> 	(long_options): --dwarf can accept arguments.
> 	(dump_dwarf_section): Also check enabled field.
> 	(main): Option -W can accept arguments, code moved to
> 	dwarf.c and call dwarf_select_sections_all instead.
> 	* readelf.c (process_section_headers): Remove do_debug_lines_decoded.
> 	(parse_args): Move code to...
> 	* dwarf.c (dwarf_select_sections_by_letters,
> 	dwarf_select_sections_by_names): : ...here (new functions).
> 	(do_debug_lines_decoded): Remove and replaced by ...
> 	(FLAG_DEBUG_LINES_RAW, FLAG_DEBUG_LINES_DECODED): ... new macros.
> 	(display_debug_lines): Adjust for previous change.
> 	(dwarf_select_sections_all): New function.
> 	(debug_displays): Add initializer for enabled field.
> 	* dwarf.h (do_debug_lines_decoded): Remove.
> 	Add prototypes for the new functions.
> 	(struct dwarf_section_display): Add enabled field.

Approved - please apply.

Cheers
   Nick