scripts/gcc-x86_64-has-stack-protector.sh

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0

echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -m64 -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs"