Makefile

CROSS_COMPILE?=arm-none-eabi-
CC:=$(CROSS_COMPILE)gcc
LD:=$(CROSS_COMPILE)gcc
OBJDUMP:=$(CROSS_COMPILE)objdump

OUTPUT:=uhk

TARGETS:=$(OUTPUT).elf $(OUTPUT).lst $(OUTPUT).map

all: $(TARGETS)

OPTIMIZATION:=-Og
INCLUDES:=-I.
CFLAGS:=-Wall -march=armv6-m -mthumb $(OPTIMIZATION) $(INCLUDES)
LDFLAGS:=-nostartfiles -T mkl25z4.ld -Wl,-Map=$(OUTPUT).map

SOURCES:= \
		_startup.c \
		clock.c \
		interrupts.c \
		gpio.c \
		main.c \
		matrix.c \
		pinmux.c \
		tpm.c \

OBJECTS:=$(SOURCES:%.c=%.o)

DEPS:=$(SOURCES:%.c=%.d)
-include $(DEPS)

%.elf %.map: $(OBJECTS)
	$(LD) $(LDFLAGS) -o $@ $^

%.lst: %.elf
	$(OBJDUMP) -S $< > $@

clean:
	rm -f $(TARGETS) $(OBJECTS) $(DEPS)

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

.DEFAULT_GOAL:=all
.PHONY: all clean
# Don't delete objects as intermediate files
.SECONDARY: $(OBJECTS)