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kconfig: add CC_IS_CLANG and CLANG_VERSION

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This will be useful to describe the clang version dependency.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Masahiro Yamada
2018-05-28 18:22:02 +09:00
parent a435389898
commit 469cb7376c
2 changed files with 11 additions and 14 deletions
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18
scripts/clang-version.sh
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@@ -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 $MINOR
fi
PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL