[PATCH v15 22/26] binfmt_elf: Define GNU_PROPERTY_X86_FEATURE_1_AND properties
From: Yu-cheng Yu <hidden>
Date: 2020-11-10 16:23:22
Also in:
linux-arch, linux-doc, linux-mm, lkml
Subsystem:
exec & binfmt api, elf, the rest · Maintainers:
Kees Cook, Linus Torvalds
An ELF file's .note.gnu.property indicates architecture features of the file.. Introduce feature definitions for Shadow Stack and Indirect Branch Tracking. Signed-off-by: Yu-cheng Yu <redacted> --- include/uapi/linux/elf.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 30f68b42eeb5..7f0e46780a35 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h@@ -455,4 +455,13 @@ typedef struct elf64_note { /* Bits for GNU_PROPERTY_AARCH64_FEATURE_1_BTI */ #define GNU_PROPERTY_AARCH64_FEATURE_1_BTI (1U << 0) +/* .note.gnu.property types for x86: */ +#define GNU_PROPERTY_X86_FEATURE_1_AND 0xc0000002 + +/* Bits for GNU_PROPERTY_X86_FEATURE_1_AND */ +#define GNU_PROPERTY_X86_FEATURE_1_IBT 0x00000001 +#define GNU_PROPERTY_X86_FEATURE_1_SHSTK 0x00000002 +#define GNU_PROPERTY_X86_FEATURE_1_INVAL ~(GNU_PROPERTY_X86_FEATURE_1_IBT | \ + GNU_PROPERTY_X86_FEATURE_1_SHSTK) + #endif /* _UAPI_LINUX_ELF_H */
--
2.21.0