On Tue, Jun 10, 2014 at 04:06:39PM +0300, Riku Voipio wrote:
> On Mon, Jun 09, 2014 at 01:21:34AM +0100, Ben Hutchings wrote:
> > The Debian armhf architecture uses the ARM EABI hard-float variant,
> > whereas armel uses the soft-float variant. Although the kernel
> > doesn't use FP itself, CONFIG_VFP must be enabled to support
> > hard-float userland and will probably be disabled when supporting a
> > soft-float userland. So set the architecture to armhf by default when
> > CONFIG_AEABI and CONFIG_VFP are both enabled.
> >
> > Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
> > ---
> > v2: rebased
> >
> > After discussion with Hector, we agreed this would be a worthwhile
> > change. Hector may later improve this by using gcc specs.
>
> That should be easy:
>
> -if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then
> +if $CC -dM -E - < /dev/null|grep -q __ARM_PCS_VFP; then
> It worked at least for my cross-compile test a minute ago.
It would be nice to have this change scheduled in any form to 3.17.
Most people building kernels these days do armhf, so Bens version is
already a material improvement for everyone.
Riku
> Riku
>
> > Ben.
> >
> > scripts/package/builddeb | 11 ++++++++++-
> > 1 file changed, 10 insertions(+), 1 deletion(-)
> >
> > diff --git a/scripts/package/builddeb b/scripts/package/builddeb
> > index f46e4dd..6756ed6 100644
> > --- a/scripts/package/builddeb
> > +++ b/scripts/package/builddeb
> > @@ -43,7 +43,16 @@ create_package() {
> > mips*)
> > debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
> > arm*)
> > - debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
> > + if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
> > + if grep -q CONFIG_VFP=y $KCONFIG_CONFIG; then
> > + debarch=armhf
> > + else
> > + debarch=armel
> > + fi
> > + else
> > + debarch=arm
> > + fi
> > + ;;
> > *)
> > echo "" >&2
> > echo "** ** ** WARNING ** ** **" >&2
> >
> >
> > --
> > Ben Hutchings
> > One of the nice things about standards is that there are so many of them.
>
>
>
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