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am 683a387e: am 4ed95088: Merge "Add support for ubsan."

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* commit '683a387efb079fefd3d2895875868b7c2a5a4a06':
  Add support for ubsan.
This commit is contained in:
Dan Albert 2015-04-15 22:32:08 +00:00 committed by Android Git Automerger
commit 3bc25d6958
3 changed files with 46 additions and 9 deletions
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2
core/clang/config.mk
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@ -120,7 +120,7 @@ endif
# Address sanitizer clang config
ADDRESS_SANITIZER_RUNTIME_LIBRARY := libclang_rt.asan_$(TARGET_ARCH)_android
ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fsanitize=address -fno-omit-frame-pointer
ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fno-omit-frame-pointer
ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl $(ADDRESS_SANITIZER_RUNTIME_LIBRARY)

1
core/clear_vars.mk
View file

@ -174,6 +174,7 @@ LOCAL_CXX_STL := default
LOCAL_NATIVE_COVERAGE :=
LOCAL_DPI_VARIANTS:=
LOCAL_DPI_FILE_STEM:=
LOCAL_SANITIZE:=
# arch specific variables
LOCAL_SRC_FILES_$(TARGET_ARCH):=

44
core/config_sanitizers.mk
View file

@ -7,26 +7,62 @@ ifdef LOCAL_IS_HOST_MODULE
ifeq ($(SANITIZE_HOST),true)
ifneq ($(strip $(LOCAL_CLANG)),false)
ifneq ($(strip $(LOCAL_ADDRESS_SANITIZER)),false)
LOCAL_ADDRESS_SANITIZER := true
LOCAL_SANITIZE := address
endif
endif
endif
endif
# Configure address sanitizer.
my_sanitize := $(LOCAL_SANITIZE)
# Keep compatibility for LOCAL_ADDRESS_SANITIZER until all targets have moved to
# `LOCAL_SANITIZE := address`.
ifeq ($(strip $(LOCAL_ADDRESS_SANITIZER)),true)
my_sanitize += address
endif
# Don't apply sanitizers to NDK code.
ifdef LOCAL_SDK_VERSION
my_sanitize :=
endif
unknown_sanitizers := $(filter-out address, \
$(filter-out undefined,$(my_sanitize)))
ifneq ($(unknown_sanitizers),)
$(error Unknown sanitizers: $(unknown_sanitizers))
endif
ifneq ($(my_sanitize),)
my_clang := true
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
my_ldflags += -fsanitize=address
# -nodefaultlibs (provided with libc++) prevents the driver from linking
# libraries needed with -fsanitize=address. http://b/18650275
# libraries needed with -fsanitize=address. http://b/18650275 (WAI)
my_ldlibs += -ldl -lpthread
else
my_shared_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES)
my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
endif
endif
ifneq ($(filter undefined,$(my_sanitize)),)
ifdef LOCAL_IS_HOST_MODULE
my_ldlibs += -ldl
else
$(error ubsan is not yet supported on the target)
endif
endif