Re: [PATCH 1/1] deb-pkg: fix cross-compile build

From: Robert Gordon
Date: Thu May 05 2011 - 14:34:22 EST


On 5/5/11 11:23 AM, Robert Gordon wrote:
On 5/5/11 10:10 AM, Nuno Subtil wrote:
This patch is not meant to fix that case, only the case where
KBUILD_DEBARCH is used.

KBUILD_DEBARCH seems to be meant to be used as an override for what
Debian wants to see as the target architecture. Arguably, the right
thing to do here might be to do the same arch detection sequence
that's done in create_package(), which looks at UTS_MACHINE first and
the KBUILD_DEBARCH override after that (though I'm not entirely sure).

This patch only adds the KBUILD_DEBARCH override, but that is still
better than the current situation. I can easily get the rest in later
if needed.

Nuno

On Thu, May 5, 2011 at 08:42, Robert Gordon
<robert@xxxxxxxxxxxxxxxxxxxxx> wrote:
On 05/05/2011 02:07 AM, maximilian attems wrote:
On Wed, May 04, 2011 at 10:48:07PM +0200, Michal Marek wrote:
Adding Maks to CC.
thanks, this one looks, good please disguard the other patch.

On Tue, May 03, 2011 at 10:59:10PM -0700, Nuno Subtil wrote:
When generating the header package, scripts/package/builddeb was
inferring the
target architecture by looking at the output of dpkg
--print-architecture. This
allows KBUILD_DEBARCH to override that.

Signed-off-by: Nuno Subtil<subtil@xxxxxxxxx>
Acked-by: maximilian attems<max@xxxxxxx>
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Greetings,

Compile breaks when using the following command:
fakeroot make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- deb-pkg

With 'set -x' in scripts/package/builddeb, the relevant output is:
+ '[' -n '' ']'
++ dpkg --print-architecture
+ arch=i386
This indicates that KBUILD_DEBARCH is not set.

The debian/control file is written with the following section:
Package: linux-headers-2.6.39-rc5+
Provides: linux-headers, linux-headers-2.6
Architecture: i386
Description: Linux kernel headers for 2.6.39-rc5+ on i386
This package provides kernel header files for 2.6.39-rc5+ on i386

This produces the following error output:
+ forcearch=-DArchitecture=armel
+ dpkg-gencontrol -isp -DArchitecture=armel
-plinux-headers-2.6.39-rc5+ -P/opt/kernel-linus/linux-2.6/debian/hdrtmp
dpkg-gencontrol: error: current host architecture 'armel' does not
appear in package's architecture list (i386)

Regards,
Robert


Nuno,
Thanks for the response. I am very new at this process, but I am trying
to learn. Yesterday, I submitted a patch that was intended to address
the same issue that you have addressed. I did what you are suggesting by
mimicking what is done in create_package(), but leaving i386/x86_64
untouched. Here is the subject of the patch I sent:

[PATCH] kbuild, deb-pkg: set host machine $arch correctly when
cross-compiling or not

Please advise if I should resend.

Regards,
Robert

-- *
*


Apologies, resending because messages were rejected by the mailing lists (probably due to html) - Robert

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