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)

diff --git a/gcc/config/rs6000/aix.h b/gcc/config/rs6000/aix.h
index 03d39b120edb0b03796983e501c046159b266670..4e4eca527a67e6cad7d101177f9bc075fd402cfe 100644 (file)
--- 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}"