armv7-a-neon.mk revision 4da707176bd554eeca183527b9260acb64ca9123 
1# Configuration for Linux on ARM.
2# Generating binaries for the ARMv7-a architecture and higher with NEON
3#
4ARCH_ARM_HAVE_ARMV7A            := true
5ARCH_ARM_HAVE_VFP               := true
6ARCH_ARM_HAVE_VFP_D32           := true
7ARCH_ARM_HAVE_NEON              := true
8
9ifneq (,$(filter cortex-a15 krait denver,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)))
10	# TODO: krait is not a cortex-a15, we set the variant to cortex-a15 so that
11	#       hardware divide operations are generated. This should be removed and a
12	#       krait CPU variant added to GCC. For clang we specify -mcpu for krait in
13	#       core/clang/arm.mk.
14	arch_variant_cflags := -mcpu=cortex-a15
15
16	# Fake an ARM compiler flag as these processors support LPAE which GCC/clang
17	# don't advertise.
18	arch_variant_cflags += -D__ARM_FEATURE_LPAE=1
19	arch_variant_ldflags := \
20		-Wl,--no-fix-cortex-a8
21else
22ifeq ($(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
26else
27ifeq ($(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
31else
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
36endif
37endif
38endif
39
40arch_variant_cflags += \
41    -mfloat-abi=softfp \
42    -mfpu=neon
43