Dan Albert | 4ae5d4b | 2014-10-31 16:23:08 -0700 | [diff] [blame] | 1 | ############################################## |
| 2 | ## Perform configuration steps for sanitizers. |
| 3 | ############################################## |
| 4 | |
Dan Albert | 27ccb75 | 2015-04-16 16:21:02 -0700 | [diff] [blame] | 5 | my_sanitize := $(strip $(LOCAL_SANITIZE)) |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 6 | |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 7 | # Don't apply sanitizers to NDK code. |
| 8 | ifdef LOCAL_SDK_VERSION |
Dan Albert | 27ccb75 | 2015-04-16 16:21:02 -0700 | [diff] [blame] | 9 | my_sanitize := never |
| 10 | endif |
| 11 | |
Evgenii Stepanov | 3632cc3 | 2015-06-11 13:57:10 -0700 | [diff] [blame] | 12 | # Configure SANITIZE_HOST / SANITIZE_TARGET. |
| 13 | ifeq ($(my_sanitize),) |
| 14 | ifdef LOCAL_IS_HOST_MODULE |
Dan Albert | 4c92a68 | 2015-04-17 11:04:06 -0700 | [diff] [blame] | 15 | my_sanitize := $(strip $(SANITIZE_HOST)) |
Evgenii Stepanov | 3632cc3 | 2015-06-11 13:57:10 -0700 | [diff] [blame] | 16 | else |
| 17 | my_sanitize := $(strip $(SANITIZE_TARGET)) |
| 18 | endif |
Dan Albert | 4c92a68 | 2015-04-17 11:04:06 -0700 | [diff] [blame] | 19 | |
Evgenii Stepanov | 3632cc3 | 2015-06-11 13:57:10 -0700 | [diff] [blame] | 20 | # SANITIZE_HOST=true is a deprecated way to say SANITIZE_HOST=address. |
| 21 | ifeq ($(my_sanitize),true) |
| 22 | my_sanitize := address |
| 23 | endif |
Dan Albert | 4c92a68 | 2015-04-17 11:04:06 -0700 | [diff] [blame] | 24 | |
Evgenii Stepanov | 3632cc3 | 2015-06-11 13:57:10 -0700 | [diff] [blame] | 25 | # SANITIZE_HOST is only in effect if the module is already using clang (host |
| 26 | # modules that haven't set `LOCAL_CLANG := false` and device modules that |
| 27 | # have set `LOCAL_CLANG := true`. |
| 28 | ifneq ($(my_clang),true) |
| 29 | my_sanitize := |
Dan Albert | 4c92a68 | 2015-04-17 11:04:06 -0700 | [diff] [blame] | 30 | endif |
Dan Albert | 27ccb75 | 2015-04-16 16:21:02 -0700 | [diff] [blame] | 31 | endif |
| 32 | |
| 33 | ifeq ($(my_sanitize),never) |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 34 | my_sanitize := |
| 35 | endif |
| 36 | |
Dan Albert | 94b5791 | 2015-04-17 09:48:33 -0700 | [diff] [blame] | 37 | # Sanitizers can only be used with clang. |
| 38 | ifneq ($(my_clang),true) |
| 39 | ifneq ($(my_sanitize),) |
| 40 | $(error $(LOCAL_PATH): $(LOCAL_MODULE): Use of sanitizers requires LOCAL_CLANG := true) |
| 41 | endif |
| 42 | endif |
| 43 | |
Dan Albert | b5b2ffe | 2015-04-16 18:07:07 -0700 | [diff] [blame] | 44 | ifneq ($(filter default-ub,$(my_sanitize)),) |
| 45 | my_sanitize := $(CLANG_DEFAULT_UB_CHECKS) |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 46 | endif |
| 47 | |
| 48 | ifneq ($(my_sanitize),) |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 49 | fsanitize_arg := $(subst $(space),$(comma),$(my_sanitize)), |
| 50 | my_cflags += -fsanitize=$(fsanitize_arg) |
| 51 | |
| 52 | ifdef LOCAL_IS_HOST_MODULE |
Dan Albert | abf4bc9 | 2015-06-16 23:27:34 -0700 | [diff] [blame] | 53 | my_cflags += -fno-sanitize-recover=all |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 54 | my_ldflags += -fsanitize=$(fsanitize_arg) |
Dan Albert | abf4bc9 | 2015-06-16 23:27:34 -0700 | [diff] [blame] | 55 | my_ldlibs += -ldl |
| 56 | else |
| 57 | my_cflags += -fsanitize-undefined-trap-on-error |
| 58 | my_cflags += -ftrap-function=abort |
| 59 | my_shared_libraries += libdl |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 60 | endif |
| 61 | endif |
| 62 | |
| 63 | ifneq ($(filter address,$(my_sanitize)),) |
Dan Albert | 4ae5d4b | 2014-10-31 16:23:08 -0700 | [diff] [blame] | 64 | # Frame pointer based unwinder in ASan requires ARM frame setup. |
| 65 | LOCAL_ARM_MODE := arm |
| 66 | my_cflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS) |
| 67 | my_ldflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS) |
| 68 | ifdef LOCAL_IS_HOST_MODULE |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 69 | # -nodefaultlibs (provided with libc++) prevents the driver from linking |
| 70 | # libraries needed with -fsanitize=address. http://b/18650275 (WAI) |
Dan Albert | abf4bc9 | 2015-06-16 23:27:34 -0700 | [diff] [blame] | 71 | my_ldlibs += -lm -lpthread |
Dan Albert | 1f0d530 | 2015-04-28 14:55:50 -0700 | [diff] [blame] | 72 | my_ldflags += -Wl,--no-as-needed |
Dan Albert | 4ae5d4b | 2014-10-31 16:23:08 -0700 | [diff] [blame] | 73 | else |
Evgenii Stepanov | f0b15e1 | 2015-04-24 16:34:47 -0700 | [diff] [blame] | 74 | # ASan runtime library must be the first in the link order. |
| 75 | my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \ |
| 76 | $(my_shared_libraries) \ |
| 77 | $(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES) |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 78 | my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES) |
Evgenii Stepanov | f0b15e1 | 2015-04-24 16:34:47 -0700 | [diff] [blame] | 79 | my_ldflags += -Wl,-rpath,$($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RPATH) |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 80 | endif |
| 81 | endif |
| 82 | |
| 83 | ifneq ($(filter undefined,$(my_sanitize)),) |
Dan Albert | abf4bc9 | 2015-06-16 23:27:34 -0700 | [diff] [blame] | 84 | ifndef LOCAL_IS_HOST_MODULE |
Dan Albert | 08cca28 | 2014-12-11 18:56:26 -0800 | [diff] [blame] | 85 | $(error ubsan is not yet supported on the target) |
Dan Albert | 4ae5d4b | 2014-10-31 16:23:08 -0700 | [diff] [blame] | 86 | endif |
| 87 | endif |
Dan Albert | 4111d48 | 2015-04-16 18:08:44 -0700 | [diff] [blame] | 88 | |
Dan Albert | 9f17655 | 2015-04-28 11:26:45 -0700 | [diff] [blame] | 89 | ifneq ($(strip $(LOCAL_SANITIZE_RECOVER)),) |
| 90 | recover_arg := $(subst $(space),$(comma),$(LOCAL_SANITIZE_RECOVER)), |
Dan Albert | 4111d48 | 2015-04-16 18:08:44 -0700 | [diff] [blame] | 91 | my_cflags += -fsanitize-recover=$(recover_arg) |
| 92 | endif |