core/llvm_config.mk

   1 CLANG := $(HOST_OUT_EXECUTABLES)/clang$(HOST_EXECUTABLE_SUFFIX)
   2 CLANG_CXX := $(HOST_OUT_EXECUTABLES)/clang++$(HOST_EXECUTABLE_SUFFIX)
   3 LLVM_AS := $(HOST_OUT_EXECUTABLES)/llvm-as$(HOST_EXECUTABLE_SUFFIX)
   4 LLVM_LINK := $(HOST_OUT_EXECUTABLES)/llvm-link$(HOST_EXECUTABLE_SUFFIX)
   5
   6 define do-clang-flags-subst
   7   TARGET_GLOBAL_CLANG_FLAGS := $(subst $(1),$(2),$(TARGET_GLOBAL_CLANG_FLAGS))
   8   HOST_GLOBAL_CLANG_FLAGS := $(subst $(1),$(2),$(HOST_GLOBAL_CLANG_FLAGS))
   9 endef
  10
  11 define clang-flags-subst
  12   $(eval $(call do-clang-flags-subst,$(1),$(2)))
  13 endef
  14
  15
  16 CLANG_CONFIG_EXTRA_CFLAGS := \
  17   -D__compiler_offsetof=__builtin_offsetof \
  18
  19 CLANG_CONFIG_UNKNOWN_CFLAGS := \
  20   -funswitch-loops
  21
  22 ifeq ($(TARGET_ARCH),arm)
  23   RS_TRIPLE := armv7-none-linux-gnueabi
  24   CLANG_CONFIG_EXTRA_ASFLAGS += \
  25     -target arm-linux-androideabi \
  26     -nostdlibinc \
  27     -B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin
  28   CLANG_CONFIG_EXTRA_CFLAGS += \
  29     $(CLANG_CONFIG_EXTRA_ASFLAGS) \
  30     -mllvm -arm-enable-ehabi
  31   CLANG_CONFIG_EXTRA_LDFLAGS += \
  32     -target arm-linux-androideabi \
  33     -B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin
  34   CLANG_CONFIG_UNKNOWN_CFLAGS += \
  35     -mthumb-interwork \
  36     -fgcse-after-reload \
  37     -frerun-cse-after-loop \
  38     -frename-registers \
  39     -fno-builtin-sin \
  40     -fno-strict-volatile-bitfields \
  41     -fno-align-jumps \
  42     -Wa,--noexecstack
  43 endif
  44 ifeq ($(TARGET_ARCH),mips)
  45   RS_TRIPLE := mipsel-unknown-linux
  46   CLANG_CONFIG_EXTRA_ASFLAGS += \
  47     -target mipsel-linux-androideabi \
  48     -nostdlibinc \
  49     -B$(TARGET_TOOLCHAIN_ROOT)/mipsel-linux-android/bin
  50   CLANG_CONFIG_EXTRA_CFLAGS += $(CLANG_CONFIG_EXTRA_ASFLAGS)
  51   CLANG_CONFIG_EXTRA_LDFLAGS += \
  52     -target mipsel-linux-androideabi \
  53     -B$(TARGET_TOOLCHAIN_ROOT)/mipsel-linux-android/bin
  54   CLANG_CONFIG_UNKNOWN_CFLAGS += \
  55     -EL \
  56     -mips32 \
  57     -mips32r2 \
  58     -mhard-float \
  59     -fno-strict-volatile-bitfields \
  60     -fgcse-after-reload \
  61     -frerun-cse-after-loop \
  62     -frename-registers \
  63     -march=mips32r2 \
  64     -mtune=mips32r2 \
  65     -march=mips32 \
  66     -mtune=mips32 \
  67     -msynci \
  68     -mno-fused-madd
  69 endif
  70 ifeq ($(TARGET_ARCH),x86)
  71   RS_TRIPLE := i686-unknown-linux
  72   CLANG_CONFIG_EXTRA_ASFLAGS += \
  73     -target i686-linux-android \
  74     -nostdlibinc \
  75     -B$(TARGET_TOOLCHAIN_ROOT)/i686-linux-android/bin
  76   CLANG_CONFIG_EXTRA_CFLAGS += $(CLANG_CONFIG_EXTRA_ASFLAGS)
  77   CLANG_CONFIG_EXTRA_LDFLAGS += \
  78     -target i686-linux-android \
  79     -B$(TARGET_TOOLCHAIN_ROOT)/i686-linux-android/bin
  80   CLANG_CONFIG_UNKNOWN_CFLAGS += \
  81     -finline-limit=300 \
  82     -fno-inline-functions-called-once \
  83     -mfpmath=sse \
  84     -mbionic
  85 endif
  86
  87 CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := external/clang/lib/include $(TARGET_OUT_HEADERS)/clang
  88
  89 # remove unknown flags to define CLANG_FLAGS
  90 TARGET_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_GLOBAL_CFLAGS))
  91 HOST_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(HOST_GLOBAL_CFLAGS))
  92
  93 TARGET_arm_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_arm_CFLAGS))
  94 TARGET_thumb_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_thumb_CFLAGS))
  95
  96 # llvm does not yet support -march=armv5e nor -march=armv5te, fall back to armv5 or armv5t
  97 $(call clang-flags-subst,-march=armv5te,-march=armv5t)
  98 $(call clang-flags-subst,-march=armv5e,-march=armv5)
  99
 100 # clang does not support -Wno-psabi and -Wno-unused-but-set-variable
 101 $(call clang-flags-subst,-Wno-psabi,)
 102 $(call clang-flags-subst,-Wno-unused-but-set-variable,)
 103
 104 # clang does not support -mcpu=cortex-a15 yet - fall back to armv7-a for now
 105 $(call clang-flags-subst,-mcpu=cortex-a15,-march=armv7-a)
 106
 107 ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fsanitize=address
 108 ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
 109 ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl libasan_preload
 110 ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan
 111
 112 # This allows us to use the superset of functionality that compiler-rt
 113 # provides to Clang (for supporting features like -ftrapv).
 114 COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler_rt-extras