84 lines
1.4 KiB
Makefile
84 lines
1.4 KiB
Makefile
TARGET ?= sh4-unknown-linux-gnu-
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AS=$(TARGET)as
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LD=$(TARGET)ld
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CC=$(TARGET)gcc
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OBJCOPY=$(TARGET)objcopy
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ENDIAN ?= little
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ifeq ($(ENDIAN),little)
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AS_ENDIAN = --little
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LD_ENDIAN = -EL
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CC_ENDIAN = -ml
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OBJ_ENDIAN = -O elf32-sh-linux
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else
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AS_ENDIAN = --big
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LD_ENDIAN = -EB
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CC_ENDIAN = -mb
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OBJ_ENDIAN = -O elf32-sh
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endif
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OPT = -Og
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DEBUG = -g -gdwarf-4
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AARCH = --isa=sh4
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CARCH = -m4-single-only
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OBJARCH = -B sh4
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CFLAGS += -Wall -Werror -Wfatal-errors
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CFLAGS += -falign-functions=4 -ffunction-sections -fdata-sections -fshort-enums
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CFLAGS += -ffreestanding -nostdlib
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DEPFLAGS = -MMD -MP
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LDFLAGS += --no-warn-execstack
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ALL_ELF =
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all:
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%.o: %.c
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$(CC) $(CARCH) $(CC_ENDIAN) $(CFLAGS) $(OPT) $(DEBUG) $(DEPFLAGS) -MF ${<}.d -c $< -o $@
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%.o: %.s
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$(AS) $(AARCH) $(AS_ENDIAN) $(DEBUG) $< -o $@
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define DEFAULT_LINK
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$(LD) $(LD_ENDIAN) $(LDFLAGS) \
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--section-start=.text=0x0 \
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--entry=_start $^ -o $@
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endef
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define BUILD_BINARY_O
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$(OBJCOPY) \
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-I binary $(OBJARCH) $(OBJ_ENDIAN) \
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$< $@
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endef
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%.txt.o: %.txt
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$(BUILD_BINARY_O)
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%.elf: %.o
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$(DEFAULT_LINK)
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%.bin: %.elf
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$(OBJCOPY) -O binary --remove-section=.stack $< $@
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clean:
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find -P \
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-regextype posix-egrep \
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-regex '.*\.(o|bin|elf|d|map)$$' \
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-exec rm {} \;
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.SUFFIXES:
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.INTERMEDIATE:
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.SECONDARY:
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.PHONY: all clean
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%: RCS/%,v
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%: RCS/%
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%: %,v
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%: s.%
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%: SCCS/s.%
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MAKEFLAGS += --no-builtin-rules
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include 2019/deps.mk
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include 2020/deps.mk
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all: $(subst .elf,.bin,$(ALL_ELF))
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