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kbuild: slim down package for building external modules

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Exclude directories and files unnecessary for building external modules:

 - include/config/  (except include/config/{auto.conf,kernel.release})
 - scripts/atomic/
 - scripts/dtc/
 - scripts/kconfig/
 - scripts/mod/mk_elfconfig
 - scripts/package/
 - scripts/unifdef
 - .config
 - *.o
 - .*.cmd

Avoid copying files twice for the following directories:

 - include/generated/
 - arch/*/include/generated/

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
This commit is contained in:
Masahiro Yamada 2024-07-27 16:42:03 +09:00
parent a660deb0f1
commit aaed5c7739
1 changed files with 16 additions and 5 deletions
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21
scripts/package/install-extmod-build
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@ -9,15 +9,22 @@ is_enabled() {
grep -q "^$1=y" include/config/auto.conf
}
find_in_scripts() {
find scripts \
\( -name atomic -o -name dtc -o -name kconfig -o -name package \) -prune -o \
! -name unifdef -a ! -name mk_elfconfig -a \( -type f -o -type l \) -print
}
mkdir -p "${destdir}"
(
cd "${srctree}"
echo Makefile
find "arch/${SRCARCH}" -maxdepth 1 -name 'Makefile*'
find include scripts -type f -o -type l
find "arch/${SRCARCH}" -name generated -prune -o -name include -type d -print
find "arch/${SRCARCH}" -name Kbuild.platforms -o -name Platform
find "arch/${SRCARCH}" -name include -type d
find include \( -name config -o -name generated \) -prune -o \( -type f -o -type l \) -print
find_in_scripts
) | tar -c -f - -C "${srctree}" -T - | tar -xf - -C "${destdir}"
{
@ -25,12 +32,16 @@ mkdir -p "${destdir}"
echo tools/objtool/objtool
fi
find "arch/${SRCARCH}/include" Module.symvers include scripts -type f
echo Module.symvers
echo "arch/${SRCARCH}/include/generated"
echo include/config/auto.conf
echo include/config/kernel.release
echo include/generated
find_in_scripts
if is_enabled CONFIG_GCC_PLUGINS; then
find scripts/gcc-plugins -name '*.so'
fi
} | tar -c -f - -T - | tar -xf - -C "${destdir}"
# copy .config manually to be where it's expected to be
cp "${KCONFIG_CONFIG}" "${destdir}/.config"
find "${destdir}" \( -name '.*.cmd' -o -name '*.o' \) -delete