On 5/20/2021 10:52 AM, Yu, Yu-cheng wrote:
On 5/20/2021 10:38 AM, Matthew Wilcox wrote:
On Wed, May 19, 2021 at 03:14:58PM -0700, Yu, Yu-cheng wrote:
+++ 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
Why not 0xc0000001? ARM64 is 0xc0000000...
I just looked at the ABI document.
ARM has GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000
X86 has:
GNU_PROPERTY_X86_ISA_1_USED 0xc0000000
GNU_PROPERTY_X86_ISA_1_NEEDED 0xc0000001
GNU_PROPERTY_X86_FEATURE_1_AND 0xc0000002
Please add all three, not just the last one.
Ok!
Just found out, I have been reading an older version. Now 0xc0000000
and 0xc0000001 have become reserved/not-used. Maybe I will just put a
note about that along with the link to the ABI document.
Yu-cheng
