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),$(2)))
  13 endef
  14
  15
  16 CLANG_CONFIG_EXTRA_CFLAGS := \
  17   -D__compiler_offsetof=__builtin_offsetof \
  18   -Dnan=__builtin_nan \
  19
  20 CLANG_CONFIG_UNKNOWN_CFLAGS := \
  21   -funswitch-loops
  22
  23 ifeq ($(TARGET_ARCH),arm)
  24   CLANG_CONFIG_EXTRA_CFLAGS += \
  25     -target arm-linux-androideabi \
  26     -nostdlibinc \
  27     -B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin \
  28     -mllvm -arm-enable-ehabi
  29   CLANG_CONFIG_EXTRA_LDFLAGS += \
  30     -target arm-linux-androideabi \
  31     -B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin
  32   CLANG_CONFIG_UNKNOWN_CFLAGS += \
  33     -mthumb-interwork \
  34     -fgcse-after-reload \
  35     -frerun-cse-after-loop \
  36     -frename-registers \
  37     -fno-builtin-sin \
  38     -fno-strict-volatile-bitfields \
  39     -fno-align-jumps \
  40     -Wa,--noexecstack
  41 endif
  42 ifeq ($(TARGET_ARCH),mips)
  43   CLANG_CONFIG_EXTRA_CFLAGS += \
  44     -target mipsel-linux-androideabi \
  45     -nostdlibinc \
  46     -B$(TARGET_TOOLCHAIN_ROOT)/mipsel-linux-android/bin
  47   CLANG_CONFIG_EXTRA_LDFLAGS += \
  48     -target mipsel-linux-androideabi \
  49     -B$(TARGET_TOOLCHAIN_ROOT)/mipsel-linux-android/bin
  50   CLANG_CONFIG_UNKNOWN_CFLAGS += \
  51     -EL \
  52     -mips32 \
  53     -mips32r2 \
  54     -mhard-float \
  55     -fno-strict-volatile-bitfields \
  56     -fgcse-after-reload \
  57     -frerun-cse-after-loop \
  58     -frename-registers \
  59     -march=mips32r2 \
  60     -mtune=mips32r2 \
  61     -march=mips32 \
  62     -mtune=mips32
  63 endif
  64 ifeq ($(TARGET_ARCH),x86)
  65   CLANG_CONFIG_EXTRA_CFLAGS += \
  66     -target i686-linux-android \
  67     -nostdlibinc \
  68     -B$(TARGET_TOOLCHAIN_ROOT)/i686-linux-android/bin
  69   CLANG_CONFIG_EXTRA_LDFLAGS += \
  70     -target i686-linux-android \
  71     -B$(TARGET_TOOLCHAIN_ROOT)/i686-linux-android/bin
  72   CLANG_CONFIG_UNKNOWN_CFLAGS += \
  73     -finline-limit=300 \
  74     -fno-inline-functions-called-once \
  75     -mfpmath=sse \
  76     -mbionic
  77 endif
  78
  79 CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := external/clang/lib/include $(TARGET_OUT_HEADERS)/clang
  80
  81 # remove unknown flags to define CLANG_FLAGS
  82 TARGET_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_GLOBAL_CFLAGS))
  83 HOST_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(HOST_GLOBAL_CFLAGS))
  84
  85 TARGET_arm_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_arm_CFLAGS))
  86 TARGET_thumb_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_thumb_CFLAGS))
  87
  88 # llvm does not yet support -march=armv5e nor -march=armv5te, fall back to armv5 or armv5t
  89 $(call clang-flags-subst,-march=armv5te,-march=armv5t)
  90 $(call clang-flags-subst,-march=armv5e,-march=armv5)
  91
  92 # clang does not support -Wno-psabi and -Wno-unused-but-set-variable
  93 $(call clang-flags-subst,-Wno-psabi,)
  94 $(call clang-flags-subst,-Wno-unused-but-set-variable,)
  95
  96 ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -faddress-sanitizer
  97 ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
  98 ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl libasan_preload
  99 ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan
 100
 101 # This allows us to use the superset of functionality that compiler-rt
 102 # provides to Clang (for supporting features like -ftrapv).
 103 COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler-rt-extras