XDIR:=/u/cs452/public/xdev
#XDIR:=$(HOME)/arm/arm-gnu-toolchain-12.2.rel1-x86_64-aarch64-none-elf
ARCH=cortex-a72
TRIPLE=aarch64-none-elf
XBINDIR:=$(XDIR)/bin
CC:=$(XBINDIR)/$(TRIPLE)-gcc
OBJCOPY:=$(XBINDIR)/$(TRIPLE)-objcopy
OBJDUMP:=$(XBINDIR)/$(TRIPLE)-objdump

# COMPILE OPTIONS
WARNINGS=-Wall -Wextra -Wpedantic -Wno-unused-const-variable
CFLAGS:=-g -pipe $(WARNINGS) -ffreestanding -mcpu=$(ARCH) -mstrict-align -mgeneral-regs-only

# Source files
SOURCES := adder.c adder10.c asm_adder.S asm.c data_adder.S
# Create .o and .d files for every .cc and .S (hand-written assembly) file
OBJECTS := $(patsubst %.c, %.o, $(patsubst %.S, %.o, $(SOURCES)))
DEPENDS := $(patsubst %.c, %.d, $(patsubst %.S, %.d, $(SOURCES)))

# The first rule is the default, ie. "make", "make all" and "make kernel8.img" mean the same
all: $(OBJECTS)

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

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

clean:
	rm -f $(OBJECTS) $(DEPENDS)