toolchain/toolchain-wrapper: add BR2_SSP_* support

Migrate the stack protection flag management into the wrapper.

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/Makefile.in

@@ -143,14 +143,6 @@ endif
 
 TARGET_LDFLAGS = $(call qstrip,$(BR2_TARGET_LDFLAGS))
 
-ifeq ($(BR2_SSP_REGULAR),y)
-TARGET_HARDENED += -fstack-protector
-else ifeq ($(BR2_SSP_STRONG),y)
-TARGET_HARDENED += -fstack-protector-strong
-else ifeq ($(BR2_SSP_ALL),y)
-TARGET_HARDENED += -fstack-protector-all
-endif
-
 ifeq ($(BR2_FORTIFY_SOURCE_1),y)
 TARGET_HARDENED += -D_FORTIFY_SOURCE=1
 else ifeq ($(BR2_FORTIFY_SOURCE_2),y)

toolchain/toolchain-wrapper.c

@@ -98,6 +98,15 @@ static char *predef_args[] = {
 #if defined(BR_MIPS_TARGET_BIG_ENDIAN) || defined(BR_ARC_TARGET_BIG_ENDIAN)
 	"-EB",
 #endif
+#ifdef BR_SSP_REGULAR
+	"-fstack-protector",
+#endif
+#ifdef BR_SSP_STRONG
+	"-fstack-protector-strong",
+#endif
+#ifdef BR_SSP_ALL
+	"-fstack-protector-all",
+#endif
 #ifdef BR_ADDITIONAL_CFLAGS
 	BR_ADDITIONAL_CFLAGS
 #endif

toolchain/toolchain-wrapper.mk

@@ -51,6 +51,14 @@ else ifeq ($(BR2_RELRO_FULL),y)
 TOOLCHAIN_WRAPPER_ARGS += -DBR2_RELRO_FULL
 endif
 
+ifeq ($(BR2_SSP_REGULAR),y)
+TOOLCHAIN_WRAPPER_ARGS += -DBR_SSP_REGULAR
+else ifeq ($(BR2_SSP_STRONG),y)
+TOOLCHAIN_WRAPPER_ARGS += -DBR_SSP_STRONG
+else ifeq ($(BR2_SSP_ALL),y)
+TOOLCHAIN_WRAPPER_ARGS += -DBR_SSP_ALL
+endif
+
 define TOOLCHAIN_WRAPPER_BUILD
 	$(HOSTCC) $(HOST_CFLAGS) $(TOOLCHAIN_WRAPPER_ARGS) \
 		-s -Wl,--hash-style=$(TOOLCHAIN_WRAPPER_HASH_STYLE) \