From c13fb09697692d0cb66103d42c8dc0ff737e9664 Mon Sep 17 00:00:00 2001
From: tjuhasz <tjuhasz@redhat.com>
Date: Tue, 5 Aug 2025 12:45:51 +0200
Subject: [PATCH] src: add Intel CET properties to large_pages.S

Add note indicating support of Intel CET for large_pages.S file based on annocheck guide: https://sourceware.org/annobin/annobin.html/Test-cf-protection.html
---
 src/large_pages/node_text_start.S | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/large_pages/node_text_start.S b/src/large_pages/node_text_start.S
index d27dd39cc236f0..2a643457b57254 100644
--- a/src/large_pages/node_text_start.S
+++ b/src/large_pages/node_text_start.S
@@ -1,6 +1,27 @@
 #if defined(__ELF__)
 .section .note.GNU-stack,"",%progbits
 #endif
+// Add .note.gnu.property note for x86_64 to enable Intel CET
+// Based on: https://sourceware.org/annobin/annobin.html/Test-cf-protection.html
+// Refs: https://github.com/nodejs/node/issues/59084
+#if defined(__x86_64__) || defined(_M_X64)
+.section	.note.gnu.property,"a"
+.align 8
+.long	 1f - 0f
+.long	 4f - 1f
+.long	 5
+0:
+.string	 "GNU"
+1:
+.align 8
+.long	 0xc0000002
+.long	 3f - 2f
+2:
+.long	 0x3
+3:
+.align 8
+4:
+#endif
 .text
 .align 0x2000
 .global __node_text_start