| Message ID | 20170706220114.142438-5-ghackmann@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Jul 7, 2017 at 12:01 AM, Greg Hackmann <ghackmann@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 <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 > + */ > +#define KASAN_ABI_VERSION 5 > + > +/* emulate gcc's __SANITIZE_ADDRESS__ flag > + */ > +#if __has_feature(address_sanitizer) > +#define __SANITIZE_ADDRESS__ > +#endif Reviewed-by: Dmitry Vyukov <dvyukov@google.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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 > -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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
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(+)