#接收传入的参数
src	:=$(obj)

PHONY	:= __build 
__build:

#定义obj-y
obj-y	:=

include ./include/config/auto.conf


#获取传入的文件夹下的makefile
allmakefile	:= $(shell find $(src) -name Makefile)
 
#包含所有的makefile
include $(allmakefile)

#获取obj-y 文件
buildobjyfile	:= $(obj-y)

#挑出目录
buildobjydir	:=$(filter %/,$(buildobjyfile))


#设置文件obj-y目录顺序 

#判断文件夹的个数来觉得目录顺序
ifeq ($(words $(buildobjydir)),1)
	builddir	:=	$(join $(src),$(buildobjydir))
else
	firstdir	:=	$(word 1, $(buildobjydir))
	seconddir	:=	$(word 2, $(buildobjydir))
	ifeq ($(firstdir),src/)
		builddir	:=	$(join $(src)$(seconddir),$(firstdir))
	else
		builddir	:=	$(join $(src)$(firstdir),$(seconddir))
	endif
endif


#给obj-y的文件名加上前缀
objsrc	:=$(addprefix $(builddir),$(filter-out %/,$(buildobjyfile)))


#生成build-in.o文件
__build:$(objsrc) $(OUTPUT)$(src)build-in.o
	@:

#将.c文件编译生成.o文件
$(objsrc):%.o:%.c FORCE
	-mkdir -p $(OUTPUT)$(dir $@)
	$(CC) -c $(CFLAGS) $< -o $(OUTPUT)$@


#尝试生成build-in.o
$(OUTPUT)$(src)build-in.o:$(addprefix $(OUTPUT),$(objsrc)) 
	$(LD) -EL -r -o $@ $^


$(OUTPUT):
	-mkdir $(OUTPUT)

FORCE:
.PHONY:FORCE