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1 # Cross-compiling (e.g., on Mac OS X, install arm-none-eabi-gcc with MacPorts)
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11
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2
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6
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3 CROSSCOMPILE := arm-linux-gnu-
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4
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20
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5 CPU = armv8
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6 CC = /usr/local/cbclang/bin/clang
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7 AS = $(CROSSCOMPILE)as
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8 LD = $(CROSSCOMPILE)ld
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9 OBJCOPY = $(CROSSCOMPILE)objcopy
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10 OBJDUMP = $(CROSSCOMPILE)objdump
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11
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20
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12 # CFLAGS = -march=${CPU} -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -Werror -I. -g -O0
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13 CFLAGS = -target ${CPU}-none-eabi -I /net/open/Linux/arm/gcc-arm-none-eabi-7-2017-q4-major/arm-none-eabi/include/ /net/open/Linux/arm/gcc-arm-none-eabi-7-2017-q4-major/lib/gcc/arm-none-eabi/7.2.1/include-fixed/ -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -I. -g -O0
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14 LDFLAGS = -L.
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20
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15 # ASFLAGS = -march=${CPU}
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16 ASFLAGS = -target ${CPU}-none-eabi
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17
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18 #LIBGCC = $(shell $(gcc) -print-libgcc-file-name)
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19 LIBGCC = /net/open/Linux/arm/gcc-arm-none-eabi-7-2017-q4-major/lib/gcc/arm-none-eabi/7.2.1/libgcc.a
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20
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21 # host compiler
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22 # HOSTCC_preferred = gcc
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23 HOSTCC_preferred = /usr/local/cbclang/bin/clang
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24 define get_hostcc
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25 $(if $(shell which $(HOSTCC_preferred)),$(HOSTCC_preferred),"cc")
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26 endef
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27 HOSTCC := $(call get_hostcc)
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28
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29 # general rules
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30 quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
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31
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32 LINK_BIN = $(call quiet-command,$(LD) $(LDFLAGS) \
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33 -T $(1) -o $(2) $(3) $(LIBS) -b binary $(4), " LINK $(TARGET_DIR)$@")
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34
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35 LINK_INIT = $(call quiet-command,$(LD) $(LDFLAGS) \
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36 $(1) -o $@.out $<, " LINK $(TARGET_DIR)$@")
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37 OBJCOPY_INIT = $(call quiet-command,$(OBJCOPY) \
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38 -S -O binary --prefix-symbols="_binary_$@" $@.out $@, " OBJCOPY $(TARGET_DIR)$@")
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39
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40 build-directory = $(shell mkdir -p build build/device build/lib)
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41
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42 build/%.o: %.c
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43 $(call build-directory)
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44 $(call quiet-command,$(CC) $(CFLAGS) \
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45 -c -o $@ $<," CC $(TARGET_DIR)$@")
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46
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47 AS_WITH = $(call quiet-command,$(CC) $(ASFLAGS) \
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48 $(1) -c -o $@ $<," AS $(TARGET_DIR)$@")
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49
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50 build/%.o: %.S
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51 $(call build-directory)
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52 $(call AS_WITH, )
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