config.mk revision 125a3c9fb00acf81c1bd395519879094d9af5b3a 
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/3.4/bin
10LLVM_PREBUILTS_HEADER_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.4/lib/clang/3.4/include/
11
12CLANG := $(LLVM_PREBUILTS_PATH)/clang$(BUILD_EXECUTABLE_SUFFIX)
13CLANG_CXX := $(LLVM_PREBUILTS_PATH)/clang++$(BUILD_EXECUTABLE_SUFFIX)
14CLANG_TBLGEN := $(LLVM_PREBUILTS_PATH)/clang-tblgen$(BUILD_EXECUTABLE_SUFFIX)
15LLVM_AS := $(LLVM_PREBUILTS_PATH)/llvm-as$(BUILD_EXECUTABLE_SUFFIX)
16LLVM_LINK := $(LLVM_PREBUILTS_PATH)/llvm-link$(BUILD_EXECUTABLE_SUFFIX)
17TBLGEN := $(LLVM_PREBUILTS_PATH)/tblgen$(BUILD_EXECUTABLE_SUFFIX)
18
19
20# Clang flags for all host or target rules
21CLANG_CONFIG_EXTRA_ASFLAGS :=
22CLANG_CONFIG_EXTRA_CFLAGS :=
23CLANG_CONFIG_EXTRA_CPPFLAGS :=
24CLANG_CONFIG_EXTRA_LDFLAGS :=
25
26CLANG_CONFIG_EXTRA_CFLAGS := \
27  -D__compiler_offsetof=__builtin_offsetof
28
29CLANG_CONFIG_UNKNOWN_CFLAGS := \
30  -funswitch-loops \
31  -Wno-psabi \
32  -Wno-unused-but-set-variable \
33  -Wno-unused-but-set-parameter
34
35# Clang flags for all host rules
36CLANG_CONFIG_HOST_EXTRA_ASFLAGS := --gcc-toolchain=$(HOST_TOOLCHAIN_FOR_CLANG)
37CLANG_CONFIG_HOST_EXTRA_CFLAGS := --gcc-toolchain=$(HOST_TOOLCHAIN_FOR_CLANG)
38CLANG_CONFIG_HOST_EXTRA_CPPFLAGS := --gcc-toolchain=$(HOST_TOOLCHAIN_FOR_CLANG)
39CLANG_CONFIG_HOST_EXTRA_LDFLAGS := --gcc-toolchain=$(HOST_TOOLCHAIN_FOR_CLANG)
40
41# Clang flags for all target rules
42CLANG_CONFIG_TARGET_EXTRA_ASFLAGS :=
43CLANG_CONFIG_TARGET_EXTRA_CFLAGS := -nostdlibinc
44CLANG_CONFIG_TARGET_EXTRA_CPPFLAGS := -nostdlibinc
45CLANG_CONFIG_TARGET_EXTRA_LDFLAGS :=
46
47# HOST config
48ifneq ($(strip $(BUILD_HOST_64bit)),)
49include $(BUILD_SYSTEM)/clang/HOST_x86_64.mk
50else
51include $(BUILD_SYSTEM)/clang/HOST_$(HOST_ARCH).mk
52endif
53
54# TARGET config
55clang_2nd_arch_prefix :=
56include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_ARCH).mk
57
58# TARGET_2ND_ARCH config
59ifdef TARGET_2ND_ARCH
60clang_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX)
61include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_2ND_ARCH).mk
62endif
63
64
65# Clang compiler-specific libc headers
66CLANG_CONFIG_EXTRA_HOST_C_INCLUDES := $(LLVM_PREBUILTS_HEADER_PATH)
67CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := $(LLVM_PREBUILTS_HEADER_PATH) $(TARGET_OUT_HEADERS)/clang
68
69# Address sanitizer clang config
70ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fsanitize=address
71ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
72ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl libasan_preload
73ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan
74
75# This allows us to use the superset of functionality that compiler-rt
76# provides to Clang (for supporting features like -ftrapv).
77COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler_rt-extras
78