[OE-core] Howto create image with -O0 optimization

[Andreas Mueller]

On Wednesday, August 10, 2011 01:41:05 AM Khem Raj wrote:
> On Tue, Aug 9, 2011 at 4:21 PM, Andreas Mueller <schnitzeltony at gmx.de> wrote:
> > Hi
> > 
> > I am debugging thunar to find the reason for segfault and modified the
> > recipe to be compiled without optimization -O0. Now I need to step into
> > shared libraries too but since they are compiled with optimization it
> > causes confusing step seqences.
> > 
> > So: How do I force -O0 optimization for whole images?
> 
> couple of ways. Set DEBUG_BUILD = "1" in your local.conf and recompile
> this will build stuff with -O1 which is better for debugging then -O2
> 
> otherwise you can override SELECTED_OPTIMIZATION = "whatever you want"
> in local.conf
> 
Thanks Khem. With your hook I learned that:

o Optimization-magic is found in bitbake.conf shipped by oe-core
o eglibc cannot be compiled with -O0 ( complains that it needs optimization )

So I now do a rebuild with DEBUG_BUILD = "1" in local.conf.

A bit off-topic: Is there a wiki for newbies like me telling howto setup 
environment for application/library debugging?

Cheers

Andreas