Add LOCAL_CLANG variable to switch C/C++ build environment to Clang.
Change-Id: I8ca1c24f51aa5546ac9618d31566a52e4fdb1436
Conflicts:
core/clear_vars.mk
diff --git a/core/llvm_config.mk b/core/llvm_config.mk
index 1238c8f..103221c 100644
--- a/core/llvm_config.mk
+++ b/core/llvm_config.mk
@@ -1,4 +1,5 @@
CLANG := $(HOST_OUT_EXECUTABLES)/clang$(HOST_EXECUTABLE_SUFFIX)
+CLANG_CXX := $(HOST_OUT_EXECUTABLES)/clang++$(HOST_EXECUTABLE_SUFFIX)
LLVM_LINK := $(HOST_OUT_EXECUTABLES)/llvm-link$(HOST_EXECUTABLE_SUFFIX)
define do-clang-flags-subst
@@ -11,18 +12,41 @@
endef
-# These seem to cause warnings on clang/LLVM.
-CLANG_CONFIG_UNKNOWN_CFLAGS := \
- -mthumb-interwork \
- -fgcse-after-reload \
- -frerun-cse-after-loop \
- -frename-registers \
- -funswitch-loops \
- -Wa,--noexecstack \
- -mfpu=vfpv3-d16
+CLANG_CONFIG_EXTRA_CFLAGS := \
+ -D__compiler_offsetof=__builtin_offsetof \
+ -Dnan=__builtin_nan \
-# Workaround a SIGSEGV in Lol
-CLANG_CONFIG_UNKNOWN_CFLAGS += -g
+CLANG_CONFIG_UNKNOWN_CFLAGS := \
+ -funswitch-loops
+
+ifeq ($(TARGET_ARCH),arm)
+ CLANG_CONFIG_EXTRA_CFLAGS += \
+ -target arm-linux-androideabi \
+ -mllvm -arm-enable-ehabi
+ CLANG_CONFIG_EXTRA_LDFLAGS += \
+ -target arm-linux-androideabi \
+ -B$(TARGET_TOOLCHAIN_ROOT)/arm-linux-androideabi/bin
+ CLANG_CONFIG_UNKNOWN_CFLAGS += \
+ -mthumb-interwork \
+ -fgcse-after-reload \
+ -frerun-cse-after-loop \
+ -frename-registers \
+ -Wa,--noexecstack
+endif
+ifeq ($(TARGET_ARCH),x86)
+ CLANG_CONFIG_EXTRA_CFLAGS += \
+ -target i686-android-linux
+ CLANG_CONFIG_EXTRA_LDFLAGS += \
+ -target i686-android-linux \
+ -B$(TARGET_TOOLCHAIN_ROOT)/i686-android-linux/bin
+ CLANG_CONFIG_UNKNOWN_CFLAGS += \
+ -finline-limit=300 \
+ -fno-inline-functions-called-once \
+ -mfpmath=sse \
+ -mbionic
+endif
+
+CLANG_CONFIG_EXTRA_C_INCLUDES := external/clang/lib/Headers
# remove unknown flags to define CLANG_FLAGS
TARGET_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_GLOBAL_CFLAGS))