config.mk revision 75b58cc827faad56517181960f81f5b4bd8a08f0
1## Clang configurations. 2 3# WITHOUT_CLANG covers both HOST and TARGET 4ifeq ($(WITHOUT_CLANG),true) 5WITHOUT_TARGET_CLANG := true 6WITHOUT_HOST_CLANG := true 7endif 8 9LLVM_PREBUILTS_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.5/bin 10LLVM_PREBUILTS_HEADER_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.5/lib/clang/3.5/include/ 11 12CLANG := $(LLVM_PREBUILTS_PATH)/clang$(BUILD_EXECUTABLE_SUFFIX) 13CLANG_CXX := $(LLVM_PREBUILTS_PATH)/clang++$(BUILD_EXECUTABLE_SUFFIX) 14LLVM_AS := $(LLVM_PREBUILTS_PATH)/llvm-as$(BUILD_EXECUTABLE_SUFFIX) 15LLVM_LINK := $(LLVM_PREBUILTS_PATH)/llvm-link$(BUILD_EXECUTABLE_SUFFIX) 16 17CLANG_TBLGEN := $(HOST_OUT_EXECUTABLES)/clang-tblgen$(BUILD_EXECUTABLE_SUFFIX) 18TBLGEN := $(HOST_OUT_EXECUTABLES)/tblgen$(BUILD_EXECUTABLE_SUFFIX) 19 20 21# Clang flags for all host or target rules 22CLANG_CONFIG_EXTRA_ASFLAGS := 23CLANG_CONFIG_EXTRA_CFLAGS := 24CLANG_CONFIG_EXTRA_CPPFLAGS := 25CLANG_CONFIG_EXTRA_LDFLAGS := 26 27CLANG_CONFIG_EXTRA_CFLAGS := \ 28 -D__compiler_offsetof=__builtin_offsetof 29 30CLANG_CONFIG_UNKNOWN_CFLAGS := \ 31 -funswitch-loops \ 32 -Wno-psabi \ 33 -Wno-unused-but-set-variable \ 34 -Wno-unused-but-set-parameter 35 36# Clang flags for all host rules 37CLANG_CONFIG_HOST_EXTRA_ASFLAGS := 38CLANG_CONFIG_HOST_EXTRA_CFLAGS := 39CLANG_CONFIG_HOST_EXTRA_CPPFLAGS := 40CLANG_CONFIG_HOST_EXTRA_LDFLAGS := 41 42# Clang flags for all target rules 43CLANG_CONFIG_TARGET_EXTRA_ASFLAGS := 44CLANG_CONFIG_TARGET_EXTRA_CFLAGS := -nostdlibinc 45CLANG_CONFIG_TARGET_EXTRA_CPPFLAGS := -nostdlibinc 46CLANG_CONFIG_TARGET_EXTRA_LDFLAGS := 47 48# HOST config 49ifneq ($(strip $(BUILD_HOST_64bit)),) 50include $(BUILD_SYSTEM)/clang/HOST_x86_64.mk 51else 52include $(BUILD_SYSTEM)/clang/HOST_$(HOST_ARCH).mk 53endif 54 55# TARGET config 56clang_2nd_arch_prefix := 57include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_ARCH).mk 58 59# TARGET_2ND_ARCH config 60ifdef TARGET_2ND_ARCH 61clang_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX) 62include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_2ND_ARCH).mk 63endif 64 65 66# Clang compiler-specific libc headers 67CLANG_CONFIG_EXTRA_HOST_C_INCLUDES := $(LLVM_PREBUILTS_HEADER_PATH) 68CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := $(LLVM_PREBUILTS_HEADER_PATH) $(TARGET_OUT_HEADERS)/clang 69 70# Address sanitizer clang config 71ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fsanitize=address 72ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit 73ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl libasan_preload 74ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan 75 76# This allows us to use the superset of functionality that compiler-rt 77# provides to Clang (for supporting features like -ftrapv). 78COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler_rt-extras 79