Merge branch '2021-07-14-build-and-host-updates'

- Resync Kbuild with the v4.20 Linux Kernel release
- Update checkpatch.pl
- Assorted other tooling updates

1 files changed, 23 insertions, 0 deletions

diff --git a/scripts/clang-version.sh b/scripts/clang-version.sh
new file mode 100755
index 00000000000..e65fbc3079d
--- /dev/null
+++ b/scripts/clang-version.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# clang-version [-p] clang-command
+#
+# Prints the compiler version of `clang-command' in a canonical 4-digit form
+# such as `0500' for clang-5.0 etc.
+#
+# With the -p option, prints the patchlevel as well, for example `050001' for
+# clang-5.0.1 etc.
+#
+
+compiler="$*"
+
+if ! ( $compiler --version | grep -q clang) ; then
+	echo 0
+	exit 1
+fi
+
+MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
+MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
+PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
+printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL