From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f69.google.com (mail-it0-f69.google.com [209.85.214.69]) by kanga.kvack.org (Postfix) with ESMTP id 372626B0261 for ; Mon, 4 Dec 2017 14:17:45 -0500 (EST) Received: by mail-it0-f69.google.com with SMTP id h200so13424053itb.3 for ; Mon, 04 Dec 2017 11:17:45 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id h5sor6228204iob.346.2017.12.04.11.17.44 for (Google Transport Security); Mon, 04 Dec 2017 11:17:44 -0800 (PST) From: Paul Lawrence Subject: [PATCH v4 1/5] kasan: add compiler support for clang Date: Mon, 4 Dec 2017 11:17:31 -0800 Message-Id: <20171204191735.132544-2-paullawrence@google.com> In-Reply-To: <20171204191735.132544-1-paullawrence@google.com> References: <20171204191735.132544-1-paullawrence@google.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , Masahiro Yamada Cc: linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kbuild@vger.kernel.org, Matthias Kaehlcke , Michael Davidson , Greg Hackmann , Paul Lawrence 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 Signed-off-by: Paul Lawrence --- include/linux/compiler-clang.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h index 3b609edffa8f..d02a4df3f473 100644 --- a/include/linux/compiler-clang.h +++ b/include/linux/compiler-clang.h @@ -19,3 +19,11 @@ #define randomized_struct_fields_start struct { #define randomized_struct_fields_end }; + +/* 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 -- 2.15.0.531.g2ccb3012c9-goog -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org