From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yu-cheng Yu Subject: [RFC PATCH v9 21/27] binfmt_elf: Define GNU_PROPERTY_X86_FEATURE_1_AND Date: Wed, 5 Feb 2020 10:19:29 -0800 Message-ID: <20200205181935.3712-22-yu-cheng.yu@intel.com> References: <20200205181935.3712-1-yu-cheng.yu@intel.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200205181935.3712-1-yu-cheng.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit Cc: Yu-cheng Yu List-Id: linux-api@vger.kernel.org An ELF file's .note.gnu.property indicates architecture features of the file. Introduce feature definitions for Control-flow Enforcement Technology (CET): Shadow Stack and Indirect Branch Tracking. Signed-off-by: Yu-cheng Yu --- include/uapi/linux/elf.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h index c37731407074..61251ecabdd7 100644 --- a/include/uapi/linux/elf.h +++ b/include/uapi/linux/elf.h @@ -444,4 +444,11 @@ typedef struct elf64_note { Elf64_Word n_type; /* Content type */ } Elf64_Nhdr; +/* .note.gnu.property types */ +#define GNU_PROPERTY_X86_FEATURE_1_AND 0xc0000002 + +/* Bits of GNU_PROPERTY_X86_FEATURE_1_AND */ +#define GNU_PROPERTY_X86_FEATURE_1_IBT 0x00000001 +#define GNU_PROPERTY_X86_FEATURE_1_SHSTK 0x00000002 + #endif /* _UAPI_LINUX_ELF_H */ -- 2.21.0