Messages in this thread | | | Subject | Re: [PATCH 4/4] kasan: add compiler support for clang | From | Andrey Ryabinin <> | Date | Mon, 10 Jul 2017 13:34:24 +0300 |
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On 07/07/2017 01:01 AM, Greg Hackmann wrote: > For now we can hard-code ASAN ABI level 5, since historical clang builds > can't build the kernel anyway. We also need to emulate gcc's > __SANITIZE_ADDRESS__ flag, or memset() calls won't be instrumented. > > Signed-off-by: Greg Hackmann <ghackmann@google.com> > --- > include/linux/compiler-clang.h | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h > index d614c5ea1b5e..8153f793b22a 100644 > --- a/include/linux/compiler-clang.h > +++ b/include/linux/compiler-clang.h > @@ -23,3 +23,13 @@ > */ > #undef inline > #define inline inline __attribute__((unused)) notrace > + > +/* all clang versions usable with the kernel support KASAN ABI version 5 > + */
Enclosing */ should be on the same line for single-line comments.
> +#define KASAN_ABI_VERSION 5 > + > +/* emulate gcc's __SANITIZE_ADDRESS__ flag > + */
Ditto.
> +#if __has_feature(address_sanitizer) > +#define __SANITIZE_ADDRESS__ > +#endif >
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