From e7d2a96f4f9bf579e5fde5870772a39fb6ffac2a Mon Sep 17 00:00:00 2001
From: Andrew Turner <andrew@FreeBSD.org>
Date: Tue, 14 Nov 2023 15:01:58 +0000
Subject: [PATCH] arm64: Mark the armv8 crc32c as supporting BTI

This is built into a test so needs the BTI elf note for the rest of the
test to be built with BTI support enabled.

As the assembly uses the ENTRY macro it already supports BTI, so mark
it as such.

Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D42595

(cherry picked from commit 25d0310ed881e86cec9ab5cf37dd8471e88ad554)
---
 sys/libkern/arm64/crc32c_armv8.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/libkern/arm64/crc32c_armv8.S b/sys/libkern/arm64/crc32c_armv8.S
index 32bf00ee477..649afff4b71 100644
--- a/sys/libkern/arm64/crc32c_armv8.S
+++ b/sys/libkern/arm64/crc32c_armv8.S
@@ -26,6 +26,8 @@
  */
 
 #include <machine/asm.h>
+#include <sys/elf_common.h>
+
 .arch_extension crc
 
 /*
@@ -76,3 +78,5 @@ last_byte:
 end:
 	ret
 END(armv8_crc32c)
+
+GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL)