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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
##############################################
## Perform configuration steps for sanitizers.
##############################################
my_sanitize := $(strip $(LOCAL_SANITIZE))
# Keep compatibility for LOCAL_ADDRESS_SANITIZER until all targets have moved to
# `LOCAL_SANITIZE := address`.
ifeq ($(strip $(LOCAL_ADDRESS_SANITIZER)),true)
my_sanitize += address
endif
# And `LOCAL_SANITIZE := never`.
ifeq ($(strip $(LOCAL_ADDRESS_SANITIZER)),false)
my_sanitize := never
endif
# Don't apply sanitizers to NDK code.
ifdef LOCAL_SDK_VERSION
my_sanitize := never
endif
# Configure SANITIZE_HOST.
ifdef LOCAL_IS_HOST_MODULE
ifeq ($(my_sanitize),)
my_sanitize := $(strip $(SANITIZE_HOST))
# SANTIZIZE_HOST=true is a deprecated way to say SANITIZE_HOST=address.
ifeq ($(my_sanitize),true)
my_sanitize := address
endif
# SANITIZE_HOST is only in effect if the module is already using clang (host
# modules that haven't set `LOCAL_CLANG := false` and device modules that
# have set `LOCAL_CLANG := true`.
ifneq ($(my_clang),true)
my_sanitize :=
endif
endif
endif
ifeq ($(my_sanitize),never)
my_sanitize :=
endif
# Sanitizers can only be used with clang.
ifneq ($(my_clang),true)
ifneq ($(my_sanitize),)
$(error $(LOCAL_PATH): $(LOCAL_MODULE): Use of sanitizers requires LOCAL_CLANG := true)
endif
endif
ifneq ($(filter default-ub,$(my_sanitize)),)
my_sanitize := $(CLANG_DEFAULT_UB_CHECKS)
my_ldlibs += -ldl
ifdef LOCAL_IS_HOST_MODULE
my_cflags += -fno-sanitize-recover=all
else
my_cflags += -fsanitize-undefined-trap-on-error
endif
endif
ifneq ($(my_sanitize),)
fsanitize_arg := $(subst $(space),$(comma),$(my_sanitize)),
my_cflags += -fsanitize=$(fsanitize_arg)
ifdef LOCAL_IS_HOST_MODULE
my_ldflags += -fsanitize=$(fsanitize_arg)
endif
endif
ifneq ($(filter address,$(my_sanitize)),)
# Frame pointer based unwinder in ASan requires ARM frame setup.
LOCAL_ARM_MODE := arm
my_cflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS)
my_ldflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS)
ifdef LOCAL_IS_HOST_MODULE
# -nodefaultlibs (provided with libc++) prevents the driver from linking
# libraries needed with -fsanitize=address. http://b/18650275 (WAI)
my_ldlibs += -lm -ldl -lpthread
my_ldflags += -Wl,--no-as-needed
else
# ASan runtime library must be the first in the link order.
my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
$(my_shared_libraries) \
$(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES)
my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
my_ldflags += -Wl,-rpath,$($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RPATH)
endif
endif
ifneq ($(filter undefined,$(my_sanitize)),)
ifdef LOCAL_IS_HOST_MODULE
my_ldlibs += -ldl
else
$(error ubsan is not yet supported on the target)
endif
endif
|
