[yocto] Build yocto debug images

[Allan Nielsen]

> > I'm new to Yocto and I'm trying to build a debug image.
> >
> > My image recipe looks like this:
> >
> > IMAGE_INSTALL = "packagegroup-core-boot ${ROOTFS_PKGMANAGE_BOOTSTRAP} u-boot
> > webstax3 vtss-uio-mod"
> > IMAGE_LINGUAS = " "
> >
> > LICENSE = "MIT"
> >
> > inherit core-image
> >
> > DEBUG_BUILD = "1"
> >
> > DEBUG_FLAGS = "-ggdb3 -O0 -fno-omit-frame-pointer"
> > DEBUG_OPTIMIZATION = "-ggdb3 -O0 -fno-omit-frame-pointer"
> >
> > IMAGE_ROOTFS_SIZE = "16384"
> > IMAGE_FEATURES = "debug-tweaks tools-debug dbg-pkgs"
> >
> > # remove not needed ipkg informations
> > ROOTFS_POSTPROCESS_COMMAND += "remove_packaging_data_files ; "
> >
> > IMAGE_FSTYPES = "tar.gz ext2.gz.u-boot"
> >
> >
> > But when I inspect the build logs of my packets I see that they have not
> > been build with "-ggdb3 -O0 -fno-omit-frame-pointer"
>
> You can't set variables in an image recipe that need to be picked up by other
> recipes (in this specific case DEBUG_BUILD, DEBUG_FLAGS and
> DEBUG_OPTIMISATION); you need to set these at a higher level i.e. local.conf
> or a custom distro configuration.

Ahh... Inserting this into local.conf is working perfect.

Thanks you.

Best regards
Allan W. Nielsen