On Fri, Jul 7, 2017 at 12:01 AM, Greg Hackmann <ghackm...@google.com> 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 <ghackm...@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 > + */ > +#define KASAN_ABI_VERSION 5 > + > +/* emulate gcc's __SANITIZE_ADDRESS__ flag > + */ > +#if __has_feature(address_sanitizer) > +#define __SANITIZE_ADDRESS__ > +#endif
Reviewed-by: Dmitry Vyukov <dvyu...@google.com>
