From 5d920bb929a99446062a48cf90867bbca57b8e77 Mon Sep 17 00:00:00 2001
From: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Date: Thu, 19 Apr 2012 15:45:57 +0900
Subject: sh: initial stack protector support.

This implements basic -fstack-protector support, based on the early ARM
version in c743f38013aeff58ef6252601e397b5ba281c633. The SMP case is
limited to the initial canary value, while the UP case handles per-task
granularity (limited to 32-bit sh until a new enough sh64 compiler
manifests itself).

Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Reviewed-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch/sh/Makefile')

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 3fc0f413777c..24875c8c1514 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -199,6 +199,10 @@ ifeq ($(CONFIG_DWARF_UNWINDER),y)
   KBUILD_CFLAGS += -fasynchronous-unwind-tables
 endif
 
+ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
+  KBUILD_CFLAGS += -fstack-protector
+endif
+
 libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)
 libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)
 
-- 
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