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    Subject[PATCH v16 22/26] binfmt_elf: Define GNU_PROPERTY_X86_FEATURE_1_AND properties
    Date
    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 <yu-cheng.yu@intel.com>
    ---
    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
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