ASM=clang
TARGET=aarch64-none-elf
CPU=cortex-a57
LD=ld.lld
OBJCOPY=objcopy --target elf64-littleaarch64

all: build/core.bin build/core.elf

# compilation -----------------------------------------------------------------

build/core.o: core/core.s
	$(ASM) -c -triple --target=$(TARGET) -mcpu=$(CPU) -O0  -g $< -o $@

build/uart.o: core/uart.s
	$(ASM) -c --target=$(TARGET) -mcpu=$(CPU) -O0  -g $< -o $@

# ELF -------------------------------------------------------------------------

build/core.elf: build/core.o build/uart.o
	$(LD) -Tcore/core.ld $^ -o $@

# BIN -------------------------------------------------------------------------

build/core.bin: build/core.elf
	$(OBJCOPY) -O binary $< $@

build/core.sym: build/core.elf
	$(OBJCOPY) --only-keep-debug $< $@
	$(OBJCOPY) --strip-debug build/core.elf

# Clean -----------------------------------------------------------------------

clean:
		rm -f build/*