Re: [Patch,AVR]: Fix PR13697: Wrong symbols with --gc-sections

[Hans-Peter Nilsson <hp at bitrange dot com>]

On Thu, 31 May 2012, Alan Modra wrote:
> On Thu, May 31, 2012 at 03:14:49AM -0400, Hans-Peter Nilsson wrote:
> > On Thu, 31 May 2012, Georg-Johann Lay wrote:
> > > PR13697 appeared to be the easiest to fix so I proposed a patch.
> > >
> > > I am aware that the proposition is not optimal but it *works*.
> >
> > Did you understand the point that you're marking an input
> > section when you should be marking the whole output section and
> > that your solution will break if the whole code is compiled with
> > -fdata-sections?  (Assuming no assembly code adding anything to
> > .data.)  And as there isn't a way to do the latter, better mark
> > all input sections.
>
> I agree with the rest of your comments, but not this one.  I think
> you'll find that gas always emits .data, which is why I gave the OK to
> Johann's patch.

So KEEP keeps even an empty input section?  Ow, it does.
And the test-case in the PR didn't have any to start with and
mentioned that things work when there is.  Sorry for the noise.

brgds, H-P