Re: [RFA, doc RFA] New option set use-deprecated-index-sections

[Jan Kratochvil <jan.kratochvil@redhat.com>]

On Tue, 17 Jul 2012 23:23:51 +0200, dje@google.com wrote:
> I was going to wait to apply this until after 7.5,
> but with the new "-iex" option I realize that the new
> "--use-deprecated-index-sections" option could be considered redundant.
> So I'm thinking about deleting that as well, in favor of having just this.

I would find less GDB options to be good.


> +@item set use-deprecated-index-sections
> +@kindex set use-deprecated-index-sections
> +Set this option to control the treatment of deprecated index sections.
> +When @code{on}, index sections are used even if they are deprecated.

> +When @code{off}, only current versions of index sections are used.
> +The default is @code{off}.

This is not completely correct:
  if (version < 6 && !use_deprecated_index_sections)
  if (version > 7)

So version 6 is not "current" but it is still used even without
-use-deprecated-index-sections.  At least gdb doc should be exact IMO.

It is also questionable if version 6 should be ignored without
-use-deprecated-index-sections.   I guess the possible performance regression
(against non-index case) is so rare it was not worth ignoring version 6.


Thanks,
Jan