build: Add de10-nano board specific compiler flags

-mcpu=cortex-a9: The CPU of de10-nano board is Cortex-A9. -mfloat-abi=softfp: The NEON intrinsics are not available with the soft option. Use softfp instead of soft. -mfpu=neon: neon equals to neon-vfpv3.
DLTcollab · Jul 23, 2019 · 2ec9079 · 2ec9079
1 parent 13b9624
commit 2ec9079
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diff --git a/Makefile b/Makefile
@@ -35,6 +35,9 @@ include mk/cpu-features.mk
 # Handle git submodule
 include mk/submodule.mk
 
+# Board specific compiler flags
+include mk/board.mk
+
 # Assign the hardware to CPU if no hardware is specified
 PLATFORMS := $(BUILD_AVX) $(BUILD_SSE) $(BUILD_GENERIC) $(BUILD_GPU) $(BUILD_FPGA_ACCEL)
 ENABLE_PLATFORMS := $(findstring 1,$(PLATFORMS))

diff --git a/mk/board.mk b/mk/board.mk
@@ -0,0 +1,3 @@
+ifeq ($(BOARD),de10nano)
+    CFLAGS += -mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=neon
+endif