[glibc/arm/gcs] aarch64: mark objects with GCS property note

[glibc/arm/gcs] aarch64: mark objects with GCS property note

[Szabolcs Nagy]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6c7378b54f6f8c3db222894ed27342782bf526b7

commit 6c7378b54f6f8c3db222894ed27342782bf526b7
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date:   Fri Dec 22 12:29:48 2023 +0000

    aarch64: mark objects with GCS property note
    
    TODO: binutils config check
    TODO: build attributes instead of gnu property

Diff:
---
 sysdeps/aarch64/sysdep.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
index 661d9fe8c1..55e0230b5e 100644
--- a/sysdeps/aarch64/sysdep.h
+++ b/sysdeps/aarch64/sysdep.h
@@ -85,6 +85,7 @@ strip_pac (void *p)
 #define FEATURE_1_AND 0xc0000000
 #define FEATURE_1_BTI 1
 #define FEATURE_1_PAC 2
+#define FEATURE_1_GCS 4
 
 /* Add a NT_GNU_PROPERTY_TYPE_0 note.  */
 #define GNU_PROPERTY(type, value)	\
@@ -103,9 +104,9 @@ strip_pac (void *p)
 /* Add GNU property note with the supported features to all asm code
    where sysdep.h is included.  */
 #if HAVE_AARCH64_BTI && HAVE_AARCH64_PAC_RET
-GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_PAC)
+GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_PAC|FEATURE_1_GCS)
 #elif HAVE_AARCH64_BTI
-GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI)
+GNU_PROPERTY (FEATURE_1_AND, FEATURE_1_BTI|FEATURE_1_GCS)
 #endif
 
 /* Define an entry point visible from C.  */