From bb346eaaa1e8d4733840d3f64de1f8076e682a5f Mon Sep 17 00:00:00 2001
From: Jeremiah Gowdy <jgowdy@godaddy.com>
Date: Fri, 12 Aug 2022 15:41:26 -0700
Subject: [PATCH] build: enable pointer authentication for branch protection on
 arm64

PR-URL: https://github.com/nodejs/node/pull/43200
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
---
 configure.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.py b/configure.py
index e53a83f332ffd6..e105d4e0cca4f6 100755
--- a/configure.py
+++ b/configure.py
@@ -1237,6 +1237,10 @@ def configure_node(o):
 
   o['variables']['want_separate_host_toolset'] = int(cross_compiling)
 
+  # Enable branch protection for arm64
+  if target_arch == 'arm64':
+    o['cflags']+=['-msign-return-address=all']
+
   if options.node_snapshot_main is not None:
     if options.shared:
       # This should be possible to fix, but we will need to refactor the