buildroot: move hardening options into separate file

Signed-off-by: Steven Barth <steven@midlink.org>

SVN-Revision: 46070

include/hardening.mk

@@ -0,0 +1,55 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+PKG_CHECK_FORMAT_SECURITY ?= 1
+PKG_CC_STACKPROTECTOR_REGULAR ?= 1
+PKG_CC_STACKPROTECTOR_STRONG ?= 1
+PKG_FORTIFY_SOURCE_1 ?= 1
+PKG_FORTIFY_SOURCE_2 ?= 1
+PKG_RELRO_PARTIAL ?= 1
+PKG_RELRO_FULL ?= 1
+
+ifdef CONFIG_PKG_CHECK_FORMAT_SECURITY
+  ifeq ($(strip $(PKG_CHECK_FORMAT_SECURITY)),1)
+    TARGET_CFLAGS += -Wformat -Werror=format-security
+  endif
+endif
+ifdef CONFIG_PKG_CC_STACKPROTECTOR_REGULAR
+  ifeq ($(strip $(PKG_CC_STACKPROTECTOR_REGULAR)),1)
+    TARGET_CFLAGS += -fstack-protector
+    TARGET_LDFLAGS += -fstack-protector
+  endif
+endif
+ifdef CONFIG_PKG_CC_STACKPROTECTOR_STRONG
+  ifeq ($(strip $(PKG_CC_STACKPROTECTOR_STRONG)),1)
+    TARGET_CFLAGS += -fstack-protector-strong
+    TARGET_LDFLAGS += -fstack-protector-strong
+  endif
+endif
+ifdef CONFIG_PKG_FORTIFY_SOURCE_1
+  ifeq ($(strip $(PKG_FORTIFY_SOURCE_1)),1)
+    TARGET_CFLAGS += -D_FORTIFY_SOURCE=1
+  endif
+endif
+ifdef CONFIG_PKG_FORTIFY_SOURCE_2
+  ifeq ($(strip $(PKG_FORTIFY_SOURCE_2)),1)
+    TARGET_CFLAGS += -D_FORTIFY_SOURCE=2
+  endif
+endif
+ifdef CONFIG_PKG_RELRO_PARTIAL
+  ifeq ($(strip $(PKG_RELRO_PARTIAL)),1)
+    TARGET_CFLAGS += -Wl,-z,relro
+    TARGET_LDFLAGS += -zrelro
+  endif
+endif
+ifdef CONFIG_PKG_RELRO_FULL
+  ifeq ($(strip $(PKG_RELRO_FULL)),1)
+    TARGET_CFLAGS += -Wl,-z,now -Wl,-z,relro
+    TARGET_LDFLAGS += -znow -zrelro
+  endif
+endif
+

include/package.mk

@@ -14,13 +14,6 @@ PKG_INSTALL_DIR ?= $(PKG_BUILD_DIR)/ipkg-install
 PKG_MD5SUM ?= unknown
 PKG_BUILD_PARALLEL ?=
 PKG_USE_MIPS16 ?= 1
-PKG_CHECK_FORMAT_SECURITY ?= 1
-PKG_CC_STACKPROTECTOR_REGULAR ?= 1
-PKG_CC_STACKPROTECTOR_STRONG ?= 1
-PKG_FORTIFY_SOURCE_1 ?= 1
-PKG_FORTIFY_SOURCE_2 ?= 1
-PKG_RELRO_PARTIAL ?= 1
-PKG_RELRO_FULL ?= 1
 
 ifneq ($(CONFIG_PKG_BUILD_USE_JOBSERVER),)
   MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) -j)
@@ -40,46 +33,8 @@ ifdef CONFIG_USE_MIPS16
     TARGET_CFLAGS += -mips16 -minterlink-mips16
   endif
 endif
-ifdef CONFIG_PKG_CHECK_FORMAT_SECURITY
-  ifeq ($(strip $(PKG_CHECK_FORMAT_SECURITY)),1)
-    TARGET_CFLAGS += -Wformat -Werror=format-security
-  endif
-endif
-ifdef CONFIG_PKG_CC_STACKPROTECTOR_REGULAR
-  ifeq ($(strip $(PKG_CC_STACKPROTECTOR_REGULAR)),1)
-    TARGET_CFLAGS += -fstack-protector
-    TARGET_LDFLAGS += -fstack-protector
-  endif
-endif
-ifdef CONFIG_PKG_CC_STACKPROTECTOR_STRONG
-  ifeq ($(strip $(PKG_CC_STACKPROTECTOR_STRONG)),1)
-    TARGET_CFLAGS += -fstack-protector-strong
-    TARGET_LDFLAGS += -fstack-protector-strong
-  endif
-endif
-ifdef CONFIG_PKG_FORTIFY_SOURCE_1
-  ifeq ($(strip $(PKG_FORTIFY_SOURCE_1)),1)
-    TARGET_CFLAGS += -D_FORTIFY_SOURCE=1
-  endif
-endif
-ifdef CONFIG_PKG_FORTIFY_SOURCE_2
-  ifeq ($(strip $(PKG_FORTIFY_SOURCE_2)),1)
-    TARGET_CFLAGS += -D_FORTIFY_SOURCE=2
-  endif
-endif
-ifdef CONFIG_PKG_RELRO_PARTIAL
-  ifeq ($(strip $(PKG_RELRO_PARTIAL)),1)
-    TARGET_CFLAGS += -Wl,-z,relro
-    TARGET_LDFLAGS += -Wl,-z,relro
-  endif
-endif
-ifdef CONFIG_PKG_RELRO_FULL
-  ifeq ($(strip $(PKG_RELRO_FULL)),1)
-    TARGET_CFLAGS += -Wl,-z,now -Wl,-z,relro
-    TARGET_LDFLAGS += -Wl,-z,now -Wl,-z,relro
-  endif
-endif
 
+include $(INCLUDE_DIR)/hardening.mk
 include $(INCLUDE_DIR)/prereq.mk
 include $(INCLUDE_DIR)/host.mk
 include $(INCLUDE_DIR)/unpack.mk