1.前言　UBOOT版本：uboot2018.03，开发板myimx8mmek240。2.背景在编译构建目标时(如makexxx)，顶层Makefile的dot-config变量值设置为1。如下：#note：顶层Makefiledot-config:=1ifneq($(filter$(no-dot-config-targets),$(MAKECMDGOALS)),) ifeq($(filter-out$(no-dot-config-targets),$(MAKECMDGOALS)),) dot-config:=0 endifendi在顶层Makefile中：#note：顶层MakefileK

1.前言　UBOOT版本：uboot2018.03，开发板myimx8mmek240。2.背景在编译构建目标时(如makexxx)，顶层Makefile的dot-config变量值设置为1。如下：#note：顶层Makefiledot-config:=1ifneq($(filter$(no-dot-config-targets),$(MAKECMDGOALS)),) ifeq($(filter-out$(no-dot-config-targets),$(MAKECMDGOALS)),) dot-config:=0 endifendi在顶层Makefile中：#note：顶层MakefileK

1.前言　UBOOT版本：uboot2018.03，开发板myimx8mmek240。2.概述本节主要接上一节解析：include/config.h、include/autoconf.mk、include/autoconf.mk.dep、spl/include/autoconf.mk、u-boot.cfg、spl/u-boot.cfg。3语句$(Q)$(MAKE)-f$(srctree)/scripts/Makefile.autoconf由于未指定目标，采用默认目标__all#note：scripts/Makefile.autoconf__all:include/autoconf.mkincl

1.前言　UBOOT版本：uboot2018.03，开发板myimx8mmek240。2.概述本节主要接上一节解析：include/config.h、include/autoconf.mk、include/autoconf.mk.dep、spl/include/autoconf.mk、u-boot.cfg、spl/u-boot.cfg。3语句$(Q)$(MAKE)-f$(srctree)/scripts/Makefile.autoconf由于未指定目标，采用默认目标__all#note：scripts/Makefile.autoconf__all:include/autoconf.mkincl