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CLANG := $(HOST_OUT_EXECUTABLES)/clang$(HOST_EXECUTABLE_SUFFIX)
CLANG_CXX := $(HOST_OUT_EXECUTABLES)/clang++$(HOST_EXECUTABLE_SUFFIX)
LLVM_AS := $(HOST_OUT_EXECUTABLES)/llvm-as$(HOST_EXECUTABLE_SUFFIX)
LLVM_LINK := $(HOST_OUT_EXECUTABLES)/llvm-link$(HOST_EXECUTABLE_SUFFIX)
define do-clang-flags-subst
TARGET_GLOBAL_CLANG_FLAGS := $(subst $(1),$(2),$(TARGET_GLOBAL_CLANG_FLAGS))
HOST_GLOBAL_CLANG_FLAGS := $(subst $(1),$(2),$(HOST_GLOBAL_CLANG_FLAGS))
endef
define clang-flags-subst
$(eval $(call do-clang-flags-subst,$(1),$(2)))
endef
CLANG_CONFIG_EXTRA_CFLAGS := \
-D__compiler_offsetof=__builtin_offsetof \
CLANG_CONFIG_UNKNOWN_CFLAGS := \
-funswitch-loops
ifeq ($(TARGET_ARCH),arm)
RS_TRIPLE := armv7-none-linux-gnueabi
CLANG_CONFIG_EXTRA_ASFLAGS += \
-target arm-linux-androideabi \
-nostdlibinc \
-B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin
CLANG_CONFIG_EXTRA_CFLAGS += \
$(CLANG_CONFIG_EXTRA_ASFLAGS) \
-mllvm -arm-enable-ehabi
CLANG_CONFIG_EXTRA_LDFLAGS += \
-target arm-linux-androideabi \
-B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin
CLANG_CONFIG_UNKNOWN_CFLAGS += \
-mthumb-interwork \
-fgcse-after-reload \
-frerun-cse-after-loop \
-frename-registers \
-fno-builtin-sin \
-fno-strict-volatile-bitfields \
-fno-align-jumps \
-Wa,--noexecstack
endif
ifeq ($(TARGET_ARCH),mips)
RS_TRIPLE := mipsel-unknown-linux
CLANG_CONFIG_EXTRA_ASFLAGS += \
-target mipsel-linux-androideabi \
-nostdlibinc \
-B$(TARGET_TOOLCHAIN_ROOT)/mipsel-linux-android/bin
CLANG_CONFIG_EXTRA_CFLAGS += $(CLANG_CONFIG_EXTRA_ASFLAGS)
CLANG_CONFIG_EXTRA_LDFLAGS += \
-target mipsel-linux-androideabi \
-B$(TARGET_TOOLCHAIN_ROOT)/mipsel-linux-android/bin
CLANG_CONFIG_UNKNOWN_CFLAGS += \
-EL \
-mips32 \
-mips32r2 \
-mhard-float \
-fno-strict-volatile-bitfields \
-fgcse-after-reload \
-frerun-cse-after-loop \
-frename-registers \
-march=mips32r2 \
-mtune=mips32r2 \
-march=mips32 \
-mtune=mips32 \
-msynci \
-mno-fused-madd
endif
ifeq ($(TARGET_ARCH),x86)
RS_TRIPLE := i686-unknown-linux
CLANG_CONFIG_EXTRA_ASFLAGS += \
-target i686-linux-android \
-nostdlibinc \
-B$(TARGET_TOOLCHAIN_ROOT)/x86_64-linux-android/bin
CLANG_CONFIG_EXTRA_CFLAGS += $(CLANG_CONFIG_EXTRA_ASFLAGS)
CLANG_CONFIG_EXTRA_LDFLAGS += \
-target i686-linux-android \
-B$(TARGET_TOOLCHAIN_ROOT)/x86_64-linux-android/bin
CLANG_CONFIG_UNKNOWN_CFLAGS += \
-finline-limit=300 \
-fno-inline-functions-called-once \
-mfpmath=sse \
-mbionic
endif
ifeq ($(TARGET_ARCH),x86_64)
RS_TRIPLE := x86_64-unknown-linux
CLANG_CONFIG_EXTRA_ASFLAGS += \
-target x86_64-linux-android \
-nostdlibinc \
-B$(TARGET_TOOLCHAIN_ROOT)/x86_64-linux-android/bin
CLANG_CONFIG_EXTRA_CFLAGS += $(CLANG_CONFIG_EXTRA_ASFLAGS)
CLANG_CONFIG_EXTRA_LDFLAGS += \
-target x86_64-linux-android \
-B$(TARGET_TOOLCHAIN_ROOT)/x86_64-linux-android/bin
CLANG_CONFIG_UNKNOWN_CFLAGS += \
-finline-limit=300 \
-fno-inline-functions-called-once \
-mfpmath=sse \
-mbionic
endif
CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := external/clang/lib/include $(TARGET_OUT_HEADERS)/clang
# remove unknown flags to define CLANG_FLAGS
TARGET_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_GLOBAL_CFLAGS))
HOST_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(HOST_GLOBAL_CFLAGS))
TARGET_arm_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_arm_CFLAGS))
TARGET_thumb_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_thumb_CFLAGS))
# llvm does not yet support -march=armv5e nor -march=armv5te, fall back to armv5 or armv5t
$(call clang-flags-subst,-march=armv5te,-march=armv5t)
$(call clang-flags-subst,-march=armv5e,-march=armv5)
# clang does not support -Wno-psabi, -Wno-unused-but-set-variable, and
# -Wno-unused-but-set-parameter
$(call clang-flags-subst,-Wno-psabi,)
$(call clang-flags-subst,-Wno-unused-but-set-variable,)
$(call clang-flags-subst,-Wno-unused-but-set-parameter,)
# clang does not support -mcpu=cortex-a15 yet - fall back to armv7-a for now
$(call clang-flags-subst,-mcpu=cortex-a15,-march=armv7-a)
ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fsanitize=address
ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl libasan_preload
ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan
# This allows us to use the superset of functionality that compiler-rt
# provides to Clang (for supporting features like -ftrapv).
COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler_rt-extras
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