Re: [PATCH 1/4] deb-pkg: Add automatic support for armhf architecture

[Michal Marek <mmarek@suse.cz>]

On 2015-04-02 15:14, Riku Voipio wrote:
> On 2 April 2015 at 15:01, Arnaud Patard <arnaud.patard@rtp-net.org> wrote:
>> riku.voipio@linaro.org writes:
>>> --- a/scripts/package/builddeb
>>> +++ b/scripts/package/builddeb
>>> @@ -45,7 +45,16 @@ create_package() {
>>>       arm64)
>>>               debarch=arm64 ;;
>>>       arm*)
>>> -             debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
>>> +             if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
>>> +                     if $CC -dM -E - < /dev/null|grep -q __ARM_PCS_VFP; then
>>
>> Actually, I guess there's nothing preventing you building a armhf kernel
>> with a compiler not having __ARM_PCS_VFP defined by default, but I'm not sure
>> we should take care of this case. One can always use KBUILD_DEBARCH=armhf.
> 
> I think the common use cases would be a) native compilers or b)
> cross-compiler targeting the same debian architecture as the rootfs.
> This patch provides automatic detection for both cases.

$CC should be used together with $KBUILD_CFLAGS to behave the same as
when building the kernel.

Michal