CC = arm-none-eabi-gcc
LD = arm-none-eabi-gcc
CXX = arm-none-eabi-g++
OBJCOPY = arm-none-eabi-objcopy

linker_script = bootloader.ld
includes = 
sources =

CFLAGS = -march=armv6-m -g -ffunction-sections -fdata-sections -O2 -Werror -Wall
CXXFLAGS = $(CFLAGS) -std=c++20 -fno-exceptions
LDFLAGS = -march=armv6-m \
		  -g --specs=nano.specs --specs=nosys.specs \
		  -Wl,--gc-sections -Wl,-T$(linker_script) -O2 \
		  -Wl,--print-memory-usage

sources += hal/lib/common/xil_assert.c
includes += -Ihal/lib/common

sources += hal/uart/xuartlite.c hal/uart/xuartlite_stats.c
includes += -Ihal/uart

objects = main.o vector_table.o $(sources:.c=.o)

CFLAGS += $(includes)

all: bootloader.elf

%.bin: %.elf
	$(OBJCOPY) -O binary $< $@

bootloader.elf: $(objects)

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

.PHONY: clean

clean:
	rm -rf *.elf *.bin $(objects)