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linux/debian/bin/refine-configs

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#!/bin/sh
set -ef
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export PYTHONUNBUFFERED=1 PYTHONDONTWRITEBYTECODE=1
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prj_dir=$(readlink -f "$(dirname "$0")/../..")
cd "${prj_dir}"
[ -s debian/changelog ]
dpkg-parsechangelog --show-field Source | grep -Eq '^linux'
ch_ver=$(dpkg-parsechangelog --show-field Version)
v=$1
[ -n "$v" ] || v=$(echo "${ch_ver}" | sed -E 's/^\d+://;s/-[^-]+$//')
[ -n "$v" ]
## should be source tree with patches applied
src_dir=$2
[ -n "${src_dir}" ] || src_dir="/tmp/linux-$v"
[ -n "${src_dir}" ]
[ -d "${src_dir}" ]
src_dir=$(readlink -f "${src_dir}")
nproc=$(nproc || printf 2)
case "${nproc}" in
[0-1] ) nproc=2 ;;
[2-9] | 1[0-9] ) ;;
* ) nproc=20 ;;
esac
rm -rf debian/build/
make -f debian/rules debian/control
[ -f debian/rules.gen ]
configs=$(sed -En '\,debian/build/(config\.[^ :]+):$,{s,,\1,p}' debian/rules.gen | sort -uV | tr -s '[:space:]' ' ')
[ -n "${configs}" ]
## produce configs
make -f debian/rules.gen "-j${nproc}" $(printf ' debian/build/%s' ${configs})
## refresh configs
for c in ${configs} ; do
echo "# refreshing $c" >&2
f="debian/build/$c"
cp -f "$f" "${src_dir}/.config"
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env -C "${src_dir}" make "-j${nproc}" oldconfig
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cp -f "${src_dir}/.config" "$f"
done
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## remove build-generated options
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find debian/build/ -name 'config.*' -type f -exec \
sed -i -E \
-e '/CONFIG_BUILD_SALT/d' \
-e '/CONFIG_(AS|CC|PAHOLE)_((CAN|HAS)_)/d' \
-e '/CONFIG_(AS|CLANG|GCC|LD|LLD|PAHOLE)_VERSION/d' \
-e '/CONFIG_(BINDGEN|CC|RUSTC)_VERSION_TEXT/d' \
-e '/CONFIG_AS_(AVX512|GFNI|SHA(1|256)_NI|TPAUSE|VAES|VPCLMULQDQ|WRUSS)/d' \
-e '/CONFIG_CC_(IMPLICIT_FALLTHROUGH)/d' \
-e '/CONFIG_(CC|GCC10)_NO_ARRAY_BOUNDS/d' \
-e '/CONFIG_(CC|GCC)_((|NO_)STRINGOP_OVERFLOW)/d' \
{} +
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## prepare configs for splitting
find debian/build/ -name 'config.*' -type f -exec sed -i -En '/CONFIG_/p' {} +
(
cd debian/build
mkdir -p split-configs
cd split-configs
"${prj_dir}/../kconfigeditor2/split-common.py" $(printf ' ../%s' ${configs})
find ./ -mindepth 1 -maxdepth 1 -type f -exec sed -i -En '/CONFIG_/p' {} +
cp -f output-common "${prj_dir}/debian/config/config"
i=0
for c in ${configs} ; do
i=$((i+1))
## config.amd64_none_cloud -> amd64/config.cloud
## config.amd64_rt_desktop -> amd64/rt/config.desktop
read -r arch featureset flavour <<-EOF
$(printf '%s' "${c#config.}" | tr '_' ' ')
EOF
[ -n "${arch}" ] || continue
[ -n "${featureset}" ] || continue
[ -n "${flavour}" ] || continue
case "${featureset}" in
none ) o="${arch}/config.${flavour}" ;;
* ) o="${arch}/${featureset}/config.${flavour}" ;;
esac
cp -f "output-part-$i" "${prj_dir}/debian/config/$o"
done
)
"${prj_dir}/../kconfigeditor2/process.py" -s "${src_dir}" .