ARCH = arm-none-eabi
CC = $(ARCH)-gcc
CFLAGS = -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -std=c23 -g -O0 -ffreestanding -Wpedantic -Wall -Wextra -Werror
LDFLAGS = -Tlink.ld -nostdlib

SRCDIR = src
BUILDDIR = build
SRCS_C = $(wildcard src/*.c)
SRCS_S = $(wildcard src/*.s)
SRCS = $(SRCS_C) $(SRCS_S)
OBJS = $(patsubst $(SRCDIR)/%,$(BUILDDIR)/%.o,$(basename $(SRCS)))
EXEC = $(BUILDDIR)/nanji

all: $(BUILDDIR) $(EXEC)

$(EXEC): $(OBJS)
	$(CC) $(LDFLAGS) $^ -o $@

$(BUILDDIR)/%.o: $(SRCDIR)/%.c
	$(CC) $(CFLAGS) -c $< -o $@

$(BUILDDIR)/%.o: $(SRCDIR)/%.s
	$(CC) $(CFLAGS) -c $< -o $@

$(BUILDDIR):
	mkdir -p $@

clean:
	rm -rf $(BUILDDIR)

.PHONY: clean