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kbuild, deb-pkg: support overriding userland architecture

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Usefull if building for sparc64 userland, because the
sparc and sparc64 userlands use the same 64-bit kernel,
making it impossible to always select the correct userland
architecture for the resulting debian package.

Might also be usefull, if you want a i386 userland with a amd64 kernel.

Example usage:
	make KBUILD_DEBARCH=i386 deb-pkg

LKML-reference: <alpine.DEB.2.02.1011051437500.13287@aurora.sdinet.de>
Signed-off-by: Asbjoern Sloth Toennesen <asbjorn@asbjorn.biz>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: maximilian attems <max@stro.at>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Asbjoern Sloth Toennesen 2010-12-12 17:39:40 +00:00 committed by Michal Marek
parent 10f26fa642
commit 55f88eccf9
2 changed files with 11 additions and 0 deletions
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8
Documentation/kbuild/kbuild.txt
View File

@ -51,6 +51,14 @@ Specify the output directory when building the kernel.
The output directory can also be specificed using "O=...".
Setting "O=..." takes precedence over KBUILD_OUTPUT.
KBUILD_DEBARCH
--------------------------------------------------
For the deb-pkg target, allows overriding the normal heuristics deployed by
deb-pkg. Normally deb-pkg attempts to guess the right architecture based on
the UTS_MACHINE variable, and on some architectures also the kernel config.
The value of KBUILD_DEBARCH is assumed (not checked) to be a valid Debian
architecture.
ARCH
--------------------------------------------------
Set ARCH to the architecture to be built.

3
scripts/package/builddeb
View File

@ -54,6 +54,9 @@ create_package() {
echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
echo "" >&2
esac
if [ -n "$KBUILD_DEBARCH" ] ; then
debarch="$KBUILD_DEBARCH"
fi
if [ -n "$debarch" ] ; then
forcearch="-DArchitecture=$debarch"
fi