From fc76690abfe6ccad0ead0befbe6068838234442f Mon Sep 17 00:00:00 2001
From: Ayappan Perumal <ayappap2@in.ibm.com>
Date: Mon, 1 Sep 2025 08:27:52 -0500
Subject: [PATCH] Error out stack-protector unavailability on AIX

stack-protector is not supported in GCC on AIX. This patch is to fail the
compilation if -fstack-protector option is passed.

gcc/ChangeLog:

	* config/rs6000/aix.h (SUBTARGET_DRIVER_SELF_SPECS):
	Error out when stack-protector option is used in AIX
	as it is not supported on AIX

	Approved By: Segher Boessenkool <segher@kernel.crashing.org>

(cherry picked from commit dfb7e97dd214f7d8ca0fa970d81ad5ba805aaa8d)
---
 gcc/config/rs6000/aix.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/config/rs6000/aix.h b/gcc/config/rs6000/aix.h
index 9e7edbb2f22c..c83eacefff4f 100644
--- a/gcc/config/rs6000/aix.h
+++ b/gcc/config/rs6000/aix.h
@@ -281,4 +281,6 @@
 #undef SUBTARGET_DRIVER_SELF_SPECS
 #define SUBTARGET_DRIVER_SELF_SPECS	\
 "%{m64:-maix64} %<m64",			\
-"%{m32:-maix32} %<m32"
+"%{m32:-maix32} %<m32",			\
+"%{fstack-protector*: %<fstack-protector* \
+   %estack-protector not supported on AIX}"