ARMCC?= arm-none-eabi-gcc
ARMOBJDUMP?= arm-none-eabi-objdump
ARMTARGET?= -mcpu=cortex-m3 -mthumb -DSTROBE_SINGLE_THREAD=1

PROG = lora.irr
PROGEXT = .elf

SRCS = main.c
SRCS+= strobe_rng_init.c

CFLAGS+= -DNDEBUG

# Strobe
.PATH: $(.CURDIR)/strobe
CFLAGS = -I$(.CURDIR)/strobe
SRCS+= strobe.c \
	x25519.c

# Microcontroller
STM32=$(.CURDIR)/stm32
.PATH: $(STM32)/l151ccux
LINKER_SCRIPT=$(STM32)/l151ccux/STM32L151CCUX_FLASH.ld
SRCS+=	startup_stm32l151ccux.s \
	system_stm32l1xx.c

CFLAGS+= -I$(STM32)
CFLAGS+= -I$(STM32)/l151ccux
CFLAGS+= -DSTM32L151xC

OBJS = $(SRCS:C/.c$/.o/)

.PHONY: all
all: $(PROG)$(PROGEXT) $(PROG).list

$(PROG)$(PROGEXT): $(OBJS)
	$(ARMCC) $(ARMTARGET) -o $@ $(.ALLSRC) -T$(LINKER_SCRIPT) --specs=nosys.specs -Wl,--gc-sections -static --specs=nano.specs -Wl,--start-group -lc -lm -Wl,--end-group

$(PROG).list: $(PROG)$(PROGEXT)
	$(ARMOBJDUMP) -h -S $(.ALLSRC) > $@

.PHONY: runtests
runtests:
	ls *.py | entr sh -c 'python -m coverage run -m unittest lora && coverage report --omit=p/\* -m -i'

.c.o:
	$(ARMCC) $(ARMTARGET) $(CFLAGS) -c $< -o $@

STROBE_REPO = https://git.code.sf.net/p/strobe/code
STROBE_BRANCH = master

.PHONY: init-strobe
init-strobe:
	git subtree add -P strobe --squash $(STROBE_REPO) $(STROBE_BRANCH)

.PHONY: update-strobe
update-strobe:
	git subtree pull -P strobe --squash $(STROBE_REPO) $(STROBE_BRANCH)