[OE-core] [PATCH] kernel-yocto: run make config for KBUILD_DEFCONFIG

[Stefano Babic]

On 26/04/2017 15:56, Bruce Ashfield wrote:
> 
> 
> On Wed, Apr 26, 2017 at 9:19 AM, Stefano Babic <sbabic at denx.de
> <mailto:sbabic at denx.de>> wrote:
> 
>     In case the defconfig was created with "make savedefconfig", it is not
>     enough to copy it to defconfig as it is done now. In fact, running make
>     ${KBUILD_DEFCONFIG}, as usually when building the kernel outside poky,
>     does much more and the resulting .config file is different as the
>     starting one.
>     The file generated by "make savedefconfig" contains in most cases a
>     subset of all options that are required for the kernel, and other
>     options are inserted automatically when make is called.
> 
>     Signed-off-by: Stefano Babic <sbabic at denx.de <mailto:sbabic at denx.de>>
>     ---
>      meta/classes/kernel-yocto.bbclass | 3 ++-
>      1 file changed, 2 insertions(+), 1 deletion(-)
> 
>     diff --git a/meta/classes/kernel-yocto.bbclass
>     b/meta/classes/kernel-yocto.bbclass
>     index 0330270..27ff8b7 100644
>     --- a/meta/classes/kernel-yocto.bbclass
>     +++ b/meta/classes/kernel-yocto.bbclass
>     @@ -109,7 +109,8 @@ do_kernel_metadata() {
>                                             bbwarn "defconfig detected
>     in WORKDIR. ${KBUILD_DEFCONFIG} skipped"
>                                     fi
>                             else
>     -                               cp -f
>     ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
>     +                                oe_runmake -C ${S} O=${B}
>     ${KBUILD_DEFCONFIG}
> 
> 
> 
> This would need to be a different mode in the configuration task, not here.
> This routine only gathers inputs, and doesn't process them.
> 

Understood.

> I have an open bug for this, and a WIP patch that will go out early in the
> 2.4 release cycle.
> 

Got it, thanks for info !

Stefano


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