| Message ID | 1522128575-5326-14-git-send-email-yamada.masahiro@socionext.com |
|---|---|
| State | New |
| Headers | show |
| Series | kconfig: move compiler capability tests to Kconfig | expand |
On Mon, Mar 26, 2018 at 10:29 PM, Masahiro Yamada <yamada.masahiro@socionext.com> wrote: > This will be useful to specify the required compiler version, > like this: > > config FOO > bool "Use Foo" > depends on GCC_VERSION >= 408000 > help > This feature requires GCC 4.8 or newer. > > Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kees Cook <keescook@chromium.org> -Kees -- Kees Cook Pixel Security
diff --git a/init/Kconfig b/init/Kconfig index c456030..923cab5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -14,6 +14,14 @@ macro success $(shell ($(1) && echo y) || echo n) # expanded to y if the given compiler flag is supported, n otherwise macro cc-option $(success $CC -Werror $(1) -c -x c /dev/null -o /dev/null) +config CC_IS_GCC + def_bool $(success $CC --version | grep -q gcc) + +config GCC_VERSION + int + default $(shell $srctree/scripts/gcc-version.sh -p $CC | sed 's/^0*//') if CC_IS_GCC + default 0 + config CONSTRUCTORS bool depends on !UML
This will be useful to specify the required compiler version, like this: config FOO bool "Use Foo" depends on GCC_VERSION >= 408000 help This feature requires GCC 4.8 or newer. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> --- Changes in v2: None init/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) -- 2.7.4