communication/EthIf/EthIf.mod.mk 目录下的脚本文件内容是：
# EthIF
obj-$(USE_ETHIF) += EthIf_Lcfg.o
obj-$(USE_ETHIF) += EthIf_PBcfg.o
obj-$(USE_ETHIF) += EthIf.ovpath-$(USE_ETHIF) += $(ROOTDIR)/communication/EthIf/src
inc-$(USE_ETHIF) += $(ROOTDIR)/communication/EthIf/inc
inc-$(USE_ETHIF) += $(ROOTDIR)/mcal/Eth/inc
它是Ethernet Interface (EthIf) components的makefile文件
具体分解如下：
- 定义了如下的编译中间文件 （obj可链接文件）:
obj- ( U S E E T H I F ) + = E t h I f L c f g . o o b j − (USE_ETHIF) += EthIf_Lcfg.o obj- (USEETHIF)+=EthIfLcfg.oobj−(USE_ETHIF) += EthIf_PBcfg.o
obj-$(USE_ETHIF) += EthIf.o - Vpath (Virtual Path):
vpath-$(USE_ETHIF) += ( R O O T D I R ) / c o m m u n i c a t i o n / E t h I f / s r c v p a t h − (ROOTDIR)/communication/EthIf/src vpath- (ROOTDIR)/communication/EthIf/srcvpath−(USE_ETHIF)存了source files搜索路径.
3.Include Paths:
inc-$(USE_ETHIF) += ( R O O T D I R ) / c o m m u n i c a t i o n / E t h I f / i n c i n c − (ROOTDIR)/communication/EthIf/inc inc- (ROOTDIR)/communication/EthIf/incinc−(USE_ETHIF) += ( R O O T D I R ) / m c a l / E t h / i n c i n c − (ROOTDIR)/mcal/Eth/inc inc- (ROOTDIR)/mcal/Eth/incinc−(USE_ETHIF) add 头文件的搜索路径
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