| Sylvain Munaut | 90ca05d | 2022-05-02 20:45:08 +0200 | [diff] [blame] | 1 | CROSS ?= riscv-none-embed- |
| Sylvain Munaut | 21b03ba | 2020-09-14 10:01:45 +0200 | [diff] [blame] | 2 | |
| 3 | CC := $(CROSS)gcc |
| 4 | OBJCOPY := $(CROSS)objcopy |
| 5 | |
| Sylvain Munaut | 90ca05d | 2022-05-02 20:45:08 +0200 | [diff] [blame] | 6 | CFLAGS=-Wall -Os -march=rv32i -mabi=ilp32 -ffreestanding -flto -nostartfiles -fomit-frame-pointer -Wl,--gc-section --specs=nano.specs |
| 7 | |
| Sylvain Munaut | 21b03ba | 2020-09-14 10:01:45 +0200 | [diff] [blame] | 8 | |
| 9 | all: boot.hex |
| 10 | |
| Sylvain Munaut | 90ca05d | 2022-05-02 20:45:08 +0200 | [diff] [blame] | 11 | |
| Sylvain Munaut | 21b03ba | 2020-09-14 10:01:45 +0200 | [diff] [blame] | 12 | boot.elf: lnk-boot.lds boot.S |
| 13 | $(CC) $(CFLAGS) -Wl,-Bstatic,-T,lnk-boot.lds,--strip-debug -DAPP_FLASH_ADDR=0x000a0000 -o $@ boot.S |
| 14 | |
| 15 | %.bin: %.elf |
| 16 | $(OBJCOPY) -O binary $< $@ |
| 17 | |
| 18 | %.hex: %.bin |
| Sylvain Munaut | 90ca05d | 2022-05-02 20:45:08 +0200 | [diff] [blame] | 19 | hexdump boot.bin -ve '1/4 "%08x\n"' $< > $@ |
| Sylvain Munaut | 21b03ba | 2020-09-14 10:01:45 +0200 | [diff] [blame] | 20 | |
| 21 | clean: |
| 22 | rm -f *.bin *.hex *.elf *.o |
| 23 | |
| 24 | .PHONY: clean |