summaryrefslogtreecommitdiffstats
path: root/include/hardening.mk
blob: 60f39428e83e92ec52e45a181686b58cbadec039 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
#
# 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_ASLR_PIE ?= 1
PKG_SSP ?= 1
PKG_FORTIFY_SOURCE ?= 1
PKG_RELRO ?= 1

ifdef CONFIG_PKG_CHECK_FORMAT_SECURITY
  ifeq ($(strip $(PKG_CHECK_FORMAT_SECURITY)),1)
    TARGET_CFLAGS += -Wformat -Werror=format-security
  endif
endif
ifdef CONFIG_PKG_ASLR_PIE
  ifeq ($(strip $(PKG_ASLR_PIE)),1)
    TARGET_CFLAGS += $(FPIC)
    TARGET_LDFLAGS += $(FPIC) -specs=$(INCLUDE_DIR)/hardened-ld-pie.specs
  endif
endif
ifdef CONFIG_PKG_CC_STACKPROTECTOR_REGULAR
  ifeq ($(strip $(PKG_SSP)),1)
    TARGET_CFLAGS += -fstack-protector
  endif
endif
ifdef CONFIG_PKG_CC_STACKPROTECTOR_STRONG
  ifeq ($(strip $(PKG_SSP)),1)
    TARGET_CFLAGS += -fstack-protector-strong
  endif
endif
ifdef CONFIG_PKG_FORTIFY_SOURCE_1
  ifeq ($(strip $(PKG_FORTIFY_SOURCE)),1)
    TARGET_CFLAGS += -D_FORTIFY_SOURCE=1
  endif
endif
ifdef CONFIG_PKG_FORTIFY_SOURCE_2
  ifeq ($(strip $(PKG_FORTIFY_SOURCE)),1)
    TARGET_CFLAGS += -D_FORTIFY_SOURCE=2
  endif
endif
ifdef CONFIG_PKG_RELRO_PARTIAL
  ifeq ($(strip $(PKG_RELRO)),1)
    TARGET_CFLAGS += -Wl,-z,relro
    TARGET_LDFLAGS += -zrelro
  endif
endif
ifdef CONFIG_PKG_RELRO_FULL
  ifeq ($(strip $(PKG_RELRO)),1)
    TARGET_CFLAGS += -Wl,-z,now -Wl,-z,relro
    TARGET_LDFLAGS += -znow -zrelro
  endif
endif