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# Clang flags for arm arch, target or host.
CLANG_CONFIG_arm_EXTRA_ASFLAGS :=
CLANG_CONFIG_arm_EXTRA_CFLAGS :=
ifneq (,$(filter krait,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)))
# Android's clang support's krait as a CPU whereas GCC doesn't. Specify
# -mcpu here rather than the more normal core/combo/arch/arm/armv7-a-neon.mk.
CLANG_CONFIG_arm_EXTRA_CFLAGS += -mcpu=krait -mfpu=neon-vfpv4
endif
ifeq ($(HOST_OS),darwin)
# Darwin is really bad at dealing with idiv/sdiv. Don't use krait on Darwin.
CLANG_CONFIG_arm_EXTRA_CFLAGS += -mcpu=cortex-a9
endif
CLANG_CONFIG_arm_EXTRA_CPPFLAGS :=
CLANG_CONFIG_arm_EXTRA_LDFLAGS :=
# Include common unknown flags
CLANG_CONFIG_arm_UNKNOWN_CFLAGS := \
$(CLANG_CONFIG_UNKNOWN_CFLAGS) \
-mthumb-interwork \
-fgcse-after-reload \
-frerun-cse-after-loop \
-frename-registers \
-fno-align-jumps \
-fno-builtin-sin \
-fno-caller-saves \
-fno-early-inlining \
-fno-move-loop-invariants \
-fno-partial-inlining \
-fno-strict-volatile-bitfields \
-fno-tree-copy-prop \
-fno-tree-loop-optimize \
-Wa,--noexecstack
define subst-clang-incompatible-arm-flags
$(subst -march=armv5te,-march=armv5t,\
$(subst -march=armv5e,-march=armv5,\
$(1)))
endef
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