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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-05-28 12:22:02 +0300 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-06-08 12:56:01 +0300 |
| commit | 469cb7376c067bc6203de4ceed253c10fe712542 (patch) | |
| tree | 947d8e29568376f46db9065d044f4ef90f553cf7 | |
| parent | a4353898980cc46b28c03fc401d4d916d82c6f4f (diff) | |
| download | linux-469cb7376c067bc6203de4ceed253c10fe712542.tar.xz | |
kconfig: add CC_IS_CLANG and CLANG_VERSION
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>
| -rw-r--r-- | init/Kconfig | 7 | ||||
| -rwxr-xr-x | scripts/clang-version.sh | 18 |
2 files changed, 11 insertions, 14 deletions
diff --git a/init/Kconfig b/init/Kconfig index 66c8fd1f1d8e..efc43c60de45 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -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 diff --git a/scripts/clang-version.sh b/scripts/clang-version.sh index 9780efa56980..dbf0a31eb111 100755 --- a/scripts/clang-version.sh +++ b/scripts/clang-version.sh @@ -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 |