25 lines
510 B
Makefile
25 lines
510 B
Makefile
CROSS ?= riscv-none-embed-
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CC := $(CROSS)gcc
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OBJCOPY := $(CROSS)objcopy
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CFLAGS=-Wall -Os -march=rv32i -mabi=ilp32 -ffreestanding -flto -nostartfiles -fomit-frame-pointer -Wl,--gc-section --specs=nano.specs
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all: boot.hex
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boot.elf: lnk-boot.lds boot.S
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$(CC) $(CFLAGS) -Wl,-Bstatic,-T,lnk-boot.lds,--strip-debug -DAPP_FLASH_ADDR=0x000a0000 -o $@ boot.S
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%.bin: %.elf
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$(OBJCOPY) -O binary $< $@
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%.hex: %.bin
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hexdump boot.bin -ve '1/4 "%08x\n"' $< > $@
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clean:
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rm -f *.bin *.hex *.elf *.o
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.PHONY: clean
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