kernel: update 4.1 to 4.1.4
[openwrt/openwrt.git] / include / hardening.mk
1 #
2 # Copyright (C) 2015 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7
8 PKG_CHECK_FORMAT_SECURITY ?= 1
9 PKG_SSP ?= 1
10 PKG_FORTIFY_SOURCE ?= 1
11 PKG_RELRO ?= 1
12
13 ifdef CONFIG_PKG_CHECK_FORMAT_SECURITY
14 ifeq ($(strip $(PKG_CHECK_FORMAT_SECURITY)),1)
15 TARGET_CFLAGS += -Wformat -Werror=format-security
16 endif
17 endif
18 ifdef CONFIG_PKG_CC_STACKPROTECTOR_REGULAR
19 ifeq ($(strip $(PKG_SSP)),1)
20 TARGET_CFLAGS += -fstack-protector
21 endif
22 endif
23 ifdef CONFIG_PKG_CC_STACKPROTECTOR_STRONG
24 ifeq ($(strip $(PKG_SSP)),1)
25 TARGET_CFLAGS += -fstack-protector-strong
26 endif
27 endif
28 ifdef CONFIG_PKG_FORTIFY_SOURCE_1
29 ifeq ($(strip $(PKG_FORTIFY_SOURCE)),1)
30 TARGET_CFLAGS += -D_FORTIFY_SOURCE=1
31 endif
32 endif
33 ifdef CONFIG_PKG_FORTIFY_SOURCE_2
34 ifeq ($(strip $(PKG_FORTIFY_SOURCE)),1)
35 TARGET_CFLAGS += -D_FORTIFY_SOURCE=2
36 endif
37 endif
38 ifdef CONFIG_PKG_RELRO_PARTIAL
39 ifeq ($(strip $(PKG_RELRO)),1)
40 TARGET_CFLAGS += -Wl,-z,relro
41 TARGET_LDFLAGS += -zrelro
42 endif
43 endif
44 ifdef CONFIG_PKG_RELRO_FULL
45 ifeq ($(strip $(PKG_RELRO)),1)
46 TARGET_CFLAGS += -Wl,-z,now -Wl,-z,relro
47 TARGET_LDFLAGS += -znow -zrelro
48 endif
49 endif
50