openwrt/include/hardening.mk
Steven Barth fc5f02410f buildroot: move hardening options into separate file
Signed-off-by: Steven Barth <steven@midlink.org>

SVN-Revision: 46070
2015-06-20 17:37:18 +00:00

56 lines
1.4 KiB
Makefile

#
# 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