Re: [eigen] limiting executable code size with debug info

["Gael Guennebaud" <gael.guennebaud@xxxxxxxxx>]

Hey,

FYI, some statistic about my project which heavily use eigen2 :

build tree size:
 -O2 -g1 :  57M
 -O2 -g2 : 434M

but my project also has its own template mess so the overhead is not 100% due to eigen2. It would be interesting to grab such statistics on kdelibs for instance...

Gael.

On Mon, Jun 9, 2008 at 4:26 PM, Gael Guennebaud <gael.guennebaud@xxxxxxxxx> wrote:

Hi,

On Mon, Jun 9, 2008 at 9:06 AM, Benoît Jacob <jacob@xxxxxxxxxxxxxxx> wrote:

So, does anybody have an idea what to do to make Eigen usable with -g2 ?

yes of course, that's easy:

let's rewrite eigen using QVariant to store the coefficients and virtual members ;)

no, seriously I have no idea how to deal with that issue :(  I know several template libraries which generate GB of .o in debug mode and I hate that... Maybe it'd be worth asking on GCC mailing list since the answer to this issue probably requires to know very well how GCC behaves internally.

Gael.