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[v3,14/23] aarch64: Mark objects with GCS property note

Message ID 20241023083920.466015-15-yury.khrustalev@arm.com
State New
Headers show
Series aarch64: Add support for Guarded Control Stack extension | expand

Commit Message

Yury Khrustalev Oct. 23, 2024, 8:39 a.m. UTC 
From: Szabolcs Nagy <szabolcs.nagy@arm.com>

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

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.  */