Makefile.common

.DEFAULT_GOAL := all

TOP = $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
CROSS_COMPILE = m68k-elf-
CC = $(CROSS_COMPILE)gcc
AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
AR = $(CROSS_COMPILE)ar
OBJCOPY = $(CROSS_COMPILE)objcopy
ASFLAGS = --pcrel
CFLAGS = -mpcrel -fomit-frame-pointer -ffixed-a5 -ffixed-d7 -fshort-enums
CFLAGS += -Os -I"$(TOP)/os3k" -ffunction-sections -fdata-sections
LDFLAGS = -static -T "$(TOP)/os3k/os3k.lds" -L"$(TOP)/os3k" -los3k
LDFLAGS += --gc-sections
ARFLAGS = rcs

%.o : %.c $(*.h)
	$(CC) $(CFLAGS) -c $<

%.o : %.asm $(*.inc)
	$(AS) $(ASFLAGS) $< -o $@

%.a : $(OBJ)
	$(AR) $(ARFLAGS) $@ $^

%.OS3KApp : $(OBJ)
	$(LD) $^ $(LDFLAGS) -o $@
	$(OBJCOPY) -O binary $@ $@

.PHONY: all clean $(SUBDIRS)

$(TARGET):

$(SUBDIRS):
	+$(MAKE) -C $@ $(MAKECMDGOALS)

all:: $(TARGET) $(SUBDIRS)

clean: $(SUBDIRS)
	rm -f $(INT) $(OBJ) $(TARGET)