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Under the u-boot tree, after make my_defconfig, a .config is generated. By comparing the defconfig and dot config files, it seems that all config items in my_defconfig are included in .config, and there are some extra config items added into .config. I am wondering where are those extra config items come from?

Thanks a lot.

bruin
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1 Answers1

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The configuration options are defined in the Kconfig files. The defconfig file just replaces the entries that you could make in

make menuconfig
Xypron
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  • Thanks for your answer. I found out that my question was kind of duplicated: contains some more detailed answer I was looking for (u-boot borrows kbuild from linux). Thanks again! – bruin Sep 05 '18 at 01:31