Disable smash stacking support by default, but allow to enable it as an experimental feature

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12010 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files/Makefile

@@ -78,6 +78,7 @@ endef
 
 define Package/libssp
 $(call Package/gcc/Default)
+  DEPENDS:=@SSP_SUPPORT
   TITLE:=GCC support library
 endef
 

toolchain/gcc/Config.in

@@ -53,6 +53,13 @@ config EXTRA_GCC_CONFIG_OPTIONS
 	help
 	    Any additional gcc options you may want to include....
 
+config SSP_SUPPORT
+	bool
+	prompt "Enable Smash Stacking Protection support" if TOOLCHAINOPTS
+	default n
+	help
+	    Enable Smash Stacking Protection support
+
 config INSTALL_LIBSTDCPP
 	bool
 	prompt "Build/install c++ compiler and libstdc++?" if TOOLCHAINOPTS

toolchain/gcc/Makefile

@@ -40,6 +40,12 @@ BUILD_DIR2:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-final
 SEP:=,
 TARGET_LANGUAGES:="c$(if $(CONFIG_INSTALL_LIBSTDCPP),$(SEP)c++)$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)"
 
+ifeq ($(CONFIG_SSP_SUPPORT),y)
+  SSP:=--enable-ssp
+else
+  SSP:=--disable-ssp
+endif
+
 EXTRA_TARGET=$(if $(CONFIG_EXTRA_TARGET_ARCH),--enable-biarch --enable-targets=$(call qstrip,$(CONFIG_EXTRA_TARGET_ARCH_NAME))-linux-uclibc)
 
 define Stage1/Configure
@@ -62,6 +68,7 @@ define Stage1/Configure
 		--disable-nls \
 		--disable-libmudflap \
 		--disable-multilib \
+		$(SSP) \
 		$(EXTRA_TARGET) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
 		$(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \
@@ -96,6 +103,7 @@ define Stage2/Configure
 		--disable-nls \
 		--disable-libmudflap \
 		--disable-multilib \
+		$(SSP) \
 		$(EXTRA_TARGET) \
 		$(SOFT_FLOAT_CONFIG_OPTION) \
 		$(call qstrip,$(CONFIG_EXTRA_GCC_CONFIG_OPTIONS)) \