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Fix building with clang and lld #294

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Merged
xuzhen merged 5 commits into from
Jan 25, 2023
Merged

Fix building with clang and lld #294

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2a06ad8
Use $kernel_config instead of $kernel_source_dir/.config
Jan 22, 2023
5c5462b
Export KERNEL_CC when exporting CC
Jan 22, 2023
4840099
Export LD and KERNEL_LD as ld.lld when CONFIG_LD_IS_LLD=y is set
Jan 22, 2023
4729aef
Better way to detect clang compiler
Jan 24, 2023
ab65154
Change cc and ld to local variables
Jan 24, 2023
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19 changes: 15 additions & 4 deletions dkms.in
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Original file line number Diff line number Diff line change
Expand Up @@ -1036,10 +1036,21 @@ prepare_build()
$"Check $build_dir for more information."
done

if [[ -e $kernel_source_dir/.config ]]; then
cc=$(sed -n 's|^CONFIG_CC_VERSION_TEXT="\([^ ]*\) .*"|\1|p' $kernel_source_dir/.config)
if command -v "$cc" >/dev/null; then
export CC="$cc"
if [[ -e "${kernel_config}" ]]; then
if grep -q 'CONFIG_CC_IS_CLANG=y' "${kernel_config}"; then
local cc=clang
if command -v "$cc" >/dev/null; then
export CC="$cc"
export KERNEL_CC="$cc"
fi
fi

if grep -q 'CONFIG_LD_IS_LLD=y' "${kernel_config}"; then
local ld=ld.lld
if command -v "$ld" >/dev/null; then
export LD="$ld"
export KERNEL_LD="$ld"
fi
fi
fi

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