blob: 7ebbf9ff491e8c6ff888c83b0424e76ce72754f9 [file] [log] [blame]
Dan Albert4ae5d4b2014-10-31 16:23:08 -07001##############################################
2## Perform configuration steps for sanitizers.
3##############################################
4
Dan Albert27ccb752015-04-16 16:21:02 -07005my_sanitize := $(strip $(LOCAL_SANITIZE))
Dan Albert08cca282014-12-11 18:56:26 -08006
Dan Albert08cca282014-12-11 18:56:26 -08007# Don't apply sanitizers to NDK code.
8ifdef LOCAL_SDK_VERSION
Dan Albert27ccb752015-04-16 16:21:02 -07009 my_sanitize := never
10endif
11
Dan Albert4c92a682015-04-17 11:04:06 -070012# Configure SANITIZE_HOST.
13ifdef LOCAL_IS_HOST_MODULE
14 ifeq ($(my_sanitize),)
15 my_sanitize := $(strip $(SANITIZE_HOST))
16
17 # SANTIZIZE_HOST=true is a deprecated way to say SANITIZE_HOST=address.
18 ifeq ($(my_sanitize),true)
19 my_sanitize := address
20 endif
21
22 # SANITIZE_HOST is only in effect if the module is already using clang (host
23 # modules that haven't set `LOCAL_CLANG := false` and device modules that
24 # have set `LOCAL_CLANG := true`.
25 ifneq ($(my_clang),true)
26 my_sanitize :=
27 endif
28 endif
Dan Albert27ccb752015-04-16 16:21:02 -070029endif
30
31ifeq ($(my_sanitize),never)
Dan Albert08cca282014-12-11 18:56:26 -080032 my_sanitize :=
33endif
34
Dan Albert94b57912015-04-17 09:48:33 -070035# Sanitizers can only be used with clang.
36ifneq ($(my_clang),true)
37 ifneq ($(my_sanitize),)
38 $(error $(LOCAL_PATH): $(LOCAL_MODULE): Use of sanitizers requires LOCAL_CLANG := true)
39 endif
40endif
41
Dan Albertb5b2ffe2015-04-16 18:07:07 -070042ifneq ($(filter default-ub,$(my_sanitize)),)
43 my_sanitize := $(CLANG_DEFAULT_UB_CHECKS)
Dan Albert08cca282014-12-11 18:56:26 -080044endif
45
46ifneq ($(my_sanitize),)
Dan Albert08cca282014-12-11 18:56:26 -080047 fsanitize_arg := $(subst $(space),$(comma),$(my_sanitize)),
48 my_cflags += -fsanitize=$(fsanitize_arg)
49
50 ifdef LOCAL_IS_HOST_MODULE
Dan Albertabf4bc92015-06-16 23:27:34 -070051 my_cflags += -fno-sanitize-recover=all
Dan Albert08cca282014-12-11 18:56:26 -080052 my_ldflags += -fsanitize=$(fsanitize_arg)
Dan Albertabf4bc92015-06-16 23:27:34 -070053 my_ldlibs += -ldl
54 else
55 my_cflags += -fsanitize-undefined-trap-on-error
56 my_cflags += -ftrap-function=abort
57 my_shared_libraries += libdl
Dan Albert08cca282014-12-11 18:56:26 -080058 endif
59endif
60
61ifneq ($(filter address,$(my_sanitize)),)
Dan Albert4ae5d4b2014-10-31 16:23:08 -070062 # Frame pointer based unwinder in ASan requires ARM frame setup.
63 LOCAL_ARM_MODE := arm
64 my_cflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS)
65 my_ldflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS)
66 ifdef LOCAL_IS_HOST_MODULE
Dan Albert08cca282014-12-11 18:56:26 -080067 # -nodefaultlibs (provided with libc++) prevents the driver from linking
68 # libraries needed with -fsanitize=address. http://b/18650275 (WAI)
Dan Albertabf4bc92015-06-16 23:27:34 -070069 my_ldlibs += -lm -lpthread
Dan Albert1f0d5302015-04-28 14:55:50 -070070 my_ldflags += -Wl,--no-as-needed
Dan Albert4ae5d4b2014-10-31 16:23:08 -070071 else
Evgenii Stepanovf0b15e12015-04-24 16:34:47 -070072 # ASan runtime library must be the first in the link order.
73 my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
74 $(my_shared_libraries) \
75 $(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES)
Dan Albert08cca282014-12-11 18:56:26 -080076 my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
Evgenii Stepanovf0b15e12015-04-24 16:34:47 -070077 my_ldflags += -Wl,-rpath,$($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RPATH)
Dan Albert08cca282014-12-11 18:56:26 -080078 endif
79endif
80
81ifneq ($(filter undefined,$(my_sanitize)),)
Dan Albertabf4bc92015-06-16 23:27:34 -070082 ifndef LOCAL_IS_HOST_MODULE
Dan Albert08cca282014-12-11 18:56:26 -080083 $(error ubsan is not yet supported on the target)
Dan Albert4ae5d4b2014-10-31 16:23:08 -070084 endif
85endif
Dan Albert4111d482015-04-16 18:08:44 -070086
Dan Albert9f176552015-04-28 11:26:45 -070087ifneq ($(strip $(LOCAL_SANITIZE_RECOVER)),)
88 recover_arg := $(subst $(space),$(comma),$(LOCAL_SANITIZE_RECOVER)),
Dan Albert4111d482015-04-16 18:08:44 -070089 my_cflags += -fsanitize-recover=$(recover_arg)
90endif