Commit 469cb737 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kconfig: add CC_IS_CLANG and CLANG_VERSION 



This will be useful to describe the clang version dependency.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
parent a4353898

init/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -16,6 +16,13 @@ config GCC_VERSION 
	default $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC

	default 0



config CC_IS_CLANG

	def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)



config CLANG_VERSION

	int

	default $(shell,$(srctree)/scripts/clang-version.sh $(CC))



config CONSTRUCTORS

	bool

	depends on !UML

scripts/clang-version.sh

+4 −14
Original line number Diff line number Diff line
@@ -10,24 +10,14 @@ 
# 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"

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)

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
 
printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL