diff mbox series

[16/23] kbuild: add clang-version.sh

Message ID 1518806331-7101-17-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit ae0c553c24c009596c3a3e903433824fe050c547
Headers show
Series kconfig: move compiler capability tests to Kconfig | expand

Commit Message

Masahiro Yamada Feb. 16, 2018, 6:38 p.m. UTC 
From: Sami Tolvanen <samitolvanen@google.com>


Based on gcc-version.sh, clang-version.sh prints out the correct
version of clang.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

Tested-by: Nick Desaulniers <ndesaulniers@google.com>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

 scripts/clang-version.sh | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100755 scripts/clang-version.sh

-- 
2.7.4
diff mbox series

Patch

diff --git a/scripts/clang-version.sh b/scripts/clang-version.sh
new file mode 100755
index 0000000..9780efa
--- /dev/null
+++ b/scripts/clang-version.sh
@@ -0,0 +1,33 @@ 
+#!/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.
+#
+
+if [ "$1" = "-p" ] ; then
+	with_patchlevel=1;
+	shift;
+fi
+
+compiler="$*"
+
+if [ ${#compiler} -eq 0 ]; then
+	echo "Error: No compiler specified."
+	printf "Usage:\n\t$0 <clang-command>\n"
+	exit 1
+fi
+
+MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
+MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
+if [ "x$with_patchlevel" != "x" ] ; then
+	PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
+	printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
+else
+	printf "%02d%02d\\n" $MAJOR $MINOR
+fi