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include .config
OBJ_DIR != echo $(CONFIG_OBJ_DIR)
include toolchain.makefile

.PHONY: all libk libd clean test tidy todo run menuconfig
all: $(OBJ_DIR)/src/glitch.elf

LIBS := $(OBJ_DIR)/libk.a $(OBJ_DIR)/libd.a
LD_FLAGS := $(LD_FLAGS) --library-path $(CURDIR)/$(OBJ_DIR)

export AR AR_FLAGS AS AS_FLAGS NM SED \
    CXX CXX_FLAGS CXX_INCLUDE TARGET \
    TEST_CXX TEST_CXX_FLAGS \
    LD LD_FLAGS

$(OBJ_DIR)/src/glitch.elf: libk libd
	@make -C src OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/src $(CURDIR)/$(OBJ_DIR)/src/glitch.elf

libk:
	@make -C libk OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/libk $(CURDIR)/$(OBJ_DIR)/libk.a

libd:
	@make -C drivers OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/drivers $(CURDIR)/$(OBJ_DIR)/libd.a

compile_commands:
	@make -C libk OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/libk compile_commands.json

clean:
	@rm -rf $(OBJ_DIR)/isodir $(LIBS)
	@make -C src  OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/src  clean
	@make -C libk OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/libk clean
	@make -C drivers OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/drivers clean
	@make -C tools/kconfig OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/kconfig clean

# testing
test:
	@make -C libk OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/libk test

todo:
	@grep TODO -r libk/ src/ drivers/

# disk image
$(OBJ_DIR)/glitch.iso: $(OBJ_DIR)/src/glitch.elf grub/grub.cfg
	@mkdir -p $(OBJ_DIR)/isodir/boot/grub
	$(GRUB_FILE) --is-x86-multiboot2 $<
	@cp $< $(OBJ_DIR)/isodir/boot/glitch.elf
	$(GRUB_SCRIPT) grub/grub.cfg
	@cp grub/grub.cfg $(OBJ_DIR)/isodir/boot/grub/grub.cfg
	@$(GRUB_MKRESCUE) -o $@ $(OBJ_DIR)/isodir

run: $(OBJ_DIR)/glitch.iso
	@$(EMU) $< -no-reboot -no-shutdown -monitor stdio

# menuconfig and mconf
CONF  := $(OBJ_DIR)/kconfig/conf
MCONF := $(OBJ_DIR)/kconfig/mconf
$(CONF) $(MCONF):
	@make -C tools/kconfig OBJ_DIR=$(CURDIR)/$(OBJ_DIR)/kconfig $(CURDIR)/$@

menuconfig: Kconfig $(MCONF)
	$(MCONF) $<