CC=aarch64-none-elf-gcc
CFLAGS = -Iinclude -O0 -g -ffreestanding -Wall -Wextra -Werror
LDFLAGS = -nostartfiles -nostdlib
LIBS = -lgcc

ARCHDIR=src/arch/aarch64
BSPDIR=src/bsp/rpi3

CSRCS = $(wildcard src/*.c) \
$(wildcard $(ARCHDIR)/*.c) $(wildcard $(ARCHDIR)/*/*.c) \
$(wildcard $(BSPDIR)/*.c) $(wildcard $(BSPDIR)/*/*.c) \

SSRCS = $(wildcard src/*.S) $(wildcard src/*/*.S) \
$(wildcard $(ARCHDIR)/*.S) $(wildcard $(ARCHDIR)/*/*.S) \
$(wildcard $(BSPDIR)/*.S) $(wildcard $(BSPDIR)/*/*.S) \

COBJS = $(patsubst %.c, %.o, $(CSRCS))
SOBJS = $(patsubst %.S, %.o, $(SSRCS)) \

LINK_LIST=\
$(LDFLAGS) \
$(COBJS) \
$(SOBJS) \
$(LIBS) \

.PHONY: all clean
.SUFFIXES: .o .c .S

all: plaid.elf

plaid.elf: $(OBJS) $(ARCHDIR)/linker.ld
    $(info $$CSRCS is [${CSRCS}])
    $(info $$SSRCS is [${SSRCS}])
    $(info $$COBJS is [$(COBJS)])
    $(info $$SOBJS is [$(SOBJS)])
    $(CC) -T $(ARCHDIR)/linker.ld -o $@ $(CFLAGS) $(LINK_LIST)

%.o: %.c
    $(CC) -MD -c $< -o $@ -std=gnu11 $(CFLAGS) $(CPPFLAGS)

%.o: %.S
    $(CC) -MD -c $< -o $@ $(CFLAGS) $(CPPFLAGS)

clean:
    rm -f plaid.elf
    rm -f  *.o */*.o */*/*.o
    rm -f  *.d */*.d */*/*.d