1 # Configuration for Linux on ARM. 2 # Generating binaries for the ARMv7-a architecture and higher with NEON 3 # 4 ARCH_ARM_HAVE_ARMV7A := true 5 ARCH_ARM_HAVE_VFP := true 6 ARCH_ARM_HAVE_VFP_D32 := true 7 ARCH_ARM_HAVE_NEON := true 8 9 ifneq (,$(filter cortex-a15 krait denver,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT))) 10 # TODO: krait is not a cortex-a15, we set the variant to cortex-a15 so that 11 # hardware divide operations are generated. This should be removed and a 12 # krait CPU variant added to GCC. For clang we specify -mcpu for krait in 13 # core/clang/arm.mk. 14 arch_variant_cflags := -mcpu=cortex-a15 15 16 # Fake an ARM compiler flag as these processors support LPAE which GCC/clang 17 # don't advertise. 18 arch_variant_cflags += -D__ARM_FEATURE_LPAE=1 19 arch_variant_ldflags := \ 20 -Wl,--no-fix-cortex-a8 21 else 22 ifeq ($(strip $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)),cortex-a8) 23 arch_variant_cflags := -mcpu=cortex-a8 24 arch_variant_ldflags := \ 25 -Wl,--fix-cortex-a8 26 else 27 ifeq ($(strip $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)),cortex-a7) 28 arch_variant_cflags := -mcpu=cortex-a7 29 arch_variant_ldflags := \ 30 -Wl,--no-fix-cortex-a8 31 else 32 arch_variant_cflags := -march=armv7-a 33 # Generic ARM might be a Cortex A8 -- better safe than sorry 34 arch_variant_ldflags := \ 35 -Wl,--fix-cortex-a8 36 endif 37 endif 38 endif 39 40 arch_variant_cflags += \ 41 -mfloat-abi=softfp \ 42 -mfpu=neon 43
