More Clang tweaks to the build system.
Adds arm_neon.h to the include path when building with Clang.
Filters out 3 additional compiler flags when building with Clang.
Filters out unsupported flags from TARGET_(arm|thumb)_CFLAGS, as well.
Change-Id: I5e23a95356e0b10c31c9aa3cb4905f6a674709e4
diff --git a/core/llvm_config.mk b/core/llvm_config.mk
index bebc08c..966924e 100644
--- a/core/llvm_config.mk
+++ b/core/llvm_config.mk
@@ -33,6 +33,9 @@
-fgcse-after-reload \
-frerun-cse-after-loop \
-frename-registers \
+ -fno-builtin-sin \
+ -fno-strict-volatile-bitfields \
+ -fno-align-jumps \
-Wa,--noexecstack
endif
ifeq ($(TARGET_ARCH),x86)
@@ -50,12 +53,15 @@
-mbionic
endif
-CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := external/clang/lib/include
+CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := external/clang/lib/include $(TARGET_OUT_HEADERS)/clang
# remove unknown flags to define CLANG_FLAGS
TARGET_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_GLOBAL_CFLAGS))
HOST_GLOBAL_CLANG_FLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(HOST_GLOBAL_CFLAGS))
+TARGET_arm_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_arm_CFLAGS))
+TARGET_thumb_CLANG_CFLAGS += $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(TARGET_thumb_CFLAGS))
+
# llvm does not yet support -march=armv5e nor -march=armv5te, fall back to armv5 or armv5t
$(call clang-flags-subst,-march=armv5te,-march=armv5t)
$(call clang-flags-subst,-march=armv5e,-march=armv5)