Makefile

COMP2300 ?= $(shell echo ~/.comp2300)

ARM_PREFIX=$(COMP2300)/arm-none-eabi/bin/arm-none-eabi-

CC=$(ARM_PREFIX)gcc
LD=$(ARM_PREFIX)ld
OBJCOPY=$(ARM_PREFIX)objcopy

OPENOCD=$(COMP2300)/openocd/bin/openocd

SRCS := $(shell find src lib -name '*.c' -or -name '*.S')
OBJS := $(addsuffix .o,$(basename $(SRCS)))

CFLAGS ?=-nostdlib -nostartfiles -mcpu=cortex-m4 -mthumb -Wall -Werror -g
LDFLAGS ?=-nostdlib -T lib/link.ld --print-memory-usage

TARGET ?= program.elf

all: $(TARGET)

$(TARGET): $(OBJS)
	"$(LD)" $(LDFLAGS) $^ -o $@

%.o: %.c
	"$(CC)" $(CFLAGS) -o $@ -c $<

%.o: %.S
	"$(CC)" $(CFLAGS) -o $@ -c $<

.PHONY: upload
upload: $(TARGET)
	"$(OBJCOPY)" -O binary $(TARGET) program.bin

	"$(OPENOCD)" -f interface/cmsis-dap.cfg -f target/nrf52.cfg -c "program program.elf verify reset exit"

clean:
	rm $(TARGET) $(OBJS) >/dev/null 2>/dev/null || true