[OE-core] gdb 7.4 and libexpat

[Khem Raj]

On (14/03/12 09:35), Henning Heinold wrote:
> On Wed, Mar 14, 2012 at 02:49:19AM +0100, Andreas Oberritter wrote:
> > Hi everybody,
> > 
> > in our rootfs, when debugging remotely with gdbserver on mips32el, gdb
> > 7.4 fails to find symbol names for use in backtraces. gdb 7.3.1 works
> > well. One of my colleagues ran git bisect and discovered the culprit:
> > 
> > gdb git revision 22d678fdfdfc56ec75555f8f44ae5f0c4fc97e9a
> > http://sourceware.org/ml/gdb-patches/2011-11/msg00103.html
> > 
> > We haven't found out why this patch breaks symbol lookup. However, we
> > found three options to fix backtraces with version 7.4:
> > 
> > 1.) Revert the changeset, possibly without understanding it fully.
> > 2.) Enable expat in gdb, dragging libexpat into the image.
> > 3.) Disable expat in gdb-cross, possibly losing functionality.
> > 
> > It seems that if one side is compiled with expat and the other is not,
> > then gdb and gdbserver now have problems communicating with each other.
> > 
> > Which way would you prefer?
> > 
> > Regards,
> > Andreas
> > 
> 
> Hi,
> 
> option 2 is my favourite.

yes enable expat on both ends is better. having xml support
is good to have better debugging experience.

> 
> Bye Henning
> 
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-- 
-Khem