forked from openkylin/platform_build
128 lines
4.3 KiB
Makefile
128 lines
4.3 KiB
Makefile
##############################################
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## Perform configuration steps for sanitizers.
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##############################################
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my_sanitize := $(strip $(LOCAL_SANITIZE))
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# SANITIZE_HOST is only in effect if the module is already using clang (host
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# modules that haven't set `LOCAL_CLANG := false` and device modules that
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# have set `LOCAL_CLANG := true`.
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my_global_sanitize :=
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ifeq ($(my_clang),true)
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ifdef LOCAL_IS_HOST_MODULE
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my_global_sanitize := $(strip $(SANITIZE_HOST))
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# SANITIZE_HOST=true is a deprecated way to say SANITIZE_HOST=address.
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my_global_sanitize := $(subst true,address,$(my_global_sanitize))
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else
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my_global_sanitize := $(strip $(SANITIZE_TARGET))
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endif
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endif
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# The sanitizer specified by the environment wins over the module.
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ifneq ($(my_global_sanitize),)
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my_sanitize := $(my_global_sanitize)
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endif
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# Don't apply sanitizers to NDK code.
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ifdef LOCAL_SDK_VERSION
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my_sanitize :=
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endif
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# Never always wins.
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ifeq ($(LOCAL_SANITIZE),never)
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my_sanitize :=
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endif
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# TSAN is not supported on 32-bit architectures. For non-multilib cases, make
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# its use an error. For multilib cases, don't use it for the 32-bit case.
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ifneq ($(filter thread,$(my_sanitize)),)
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ifeq ($(my_32_64_bit_suffix),32)
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ifeq ($(my_module_multilib),both)
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my_sanitize := $(filter-out thread,$(my_sanitize))
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else
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$(error $(LOCAL_PATH): $(LOCAL_MODULE): TSAN cannot be used for 32-bit modules.)
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endif
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endif
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endif
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# Undefined symbols can occur if a non-sanitized library links
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# sanitized static libraries. That's OK, because the executable
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# always depends on the ASan runtime library, which defines these
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# symbols.
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ifneq ($(strip $(SANITIZE_TARGET)),)
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ifndef LOCAL_IS_HOST_MODULE
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ifeq ($(LOCAL_MODULE_CLASS),SHARED_LIBRARIES)
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ifeq ($(my_sanitize),)
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my_allow_undefined_symbols := true
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endif
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endif
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# Workaround for a bug in AddressSanitizer that breaks stack unwinding.
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# https://code.google.com/p/address-sanitizer/issues/detail?id=387
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# Revert when external/compiler-rt is updated past r236014.
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LOCAL_PACK_MODULE_RELOCATIONS := false
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endif
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endif
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# Sanitizers can only be used with clang.
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ifneq ($(my_clang),true)
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ifneq ($(my_sanitize),)
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$(error $(LOCAL_PATH): $(LOCAL_MODULE): Use of sanitizers requires LOCAL_CLANG := true)
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endif
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endif
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ifneq ($(filter default-ub,$(my_sanitize)),)
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my_sanitize := $(CLANG_DEFAULT_UB_CHECKS)
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endif
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ifneq ($(my_sanitize),)
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fsanitize_arg := $(subst $(space),$(comma),$(my_sanitize)),
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my_cflags += -fsanitize=$(fsanitize_arg)
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ifdef LOCAL_IS_HOST_MODULE
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my_cflags += -fno-sanitize-recover=all
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my_ldflags += -fsanitize=$(fsanitize_arg)
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my_ldlibs += -lrt -ldl
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else
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my_cflags += -fsanitize-undefined-trap-on-error
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my_cflags += -ftrap-function=abort
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my_shared_libraries += libdl
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endif
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endif
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ifneq ($(filter address,$(my_sanitize)),)
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# Frame pointer based unwinder in ASan requires ARM frame setup.
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LOCAL_ARM_MODE := arm
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my_cflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS)
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my_ldflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS)
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ifdef LOCAL_IS_HOST_MODULE
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# -nodefaultlibs (provided with libc++) prevents the driver from linking
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# libraries needed with -fsanitize=address. http://b/18650275 (WAI)
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my_ldlibs += -lm -lpthread
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my_ldflags += -Wl,--no-as-needed
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else
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my_cflags += -mllvm -asan-globals=0
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# ASan runtime library must be the first in the link order.
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my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
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$(my_shared_libraries) \
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$(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES)
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my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
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my_ldflags += -Wl,-rpath,$($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RPATH)
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my_linker := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_LINKER)
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# Make sure linker_asan get installed.
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$(LOCAL_INSTALLED_MODULE) : | $(PRODUCT_OUT)$($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_LINKER)
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endif
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endif
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ifneq ($(filter undefined,$(my_sanitize)),)
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ifndef LOCAL_IS_HOST_MODULE
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$(error ubsan is not yet supported on the target)
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endif
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endif
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ifneq ($(strip $(LOCAL_SANITIZE_RECOVER)),)
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recover_arg := $(subst $(space),$(comma),$(LOCAL_SANITIZE_RECOVER)),
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my_cflags += -fsanitize-recover=$(recover_arg)
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endif
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