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kbuild: Fix ld-version.sh script if LLD was built with LLD_VENDOR

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If LLD was built with -DLLD_VENDOR="xyz", ld.lld --version output
will prefix LLD_VENDOR. Since LLD_VENDOR can contain spaces, the
LLD identifier isn't guaranteed to be $2 either.

Adjust the version checker to handle such versions of lld.

Link: https://lore.kernel.org/lkml/20210302221211.1620858-1-bero@lindev.ch/
Signed-off-by: Bernhard Rosenkränzer <bero@lindev.ch>
[masahiro yamada: refactor the code]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
This commit is contained in:
Bernhard Rosenkränzer 2021-03-02 23:12:11 +01:00 committed by Masahiro Yamada
parent b3d9fc1436
commit 1f09af0625
1 changed files with 13 additions and 7 deletions
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20
scripts/ld-version.sh
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@ -44,14 +44,20 @@ if [ "$1" = GNU -a "$2" = ld ]; then
elif [ "$1" = GNU -a "$2" = gold ]; then
echo "gold linker is not supported as it is not capable of linking the kernel proper." >&2
exit 1
elif [ "$1" = LLD ]; then
version=$2
min_version=$lld_min_version
name=LLD
disp_name=LLD
else
echo "$orig_args: unknown linker" >&2
exit 1
while [ $# -gt 1 -a "$1" != "LLD" ]; do
shift
done
if [ "$1" = LLD ]; then
version=$2
min_version=$lld_min_version
name=LLD
disp_name=LLD
else
echo "$orig_args: unknown linker" >&2
exit 1
fi
fi
# Some distributions append a package release number, as in 2.34-4.fc32