What is the role of Kbuild in kernel source

[wuzhouhui <wuzhouhui14@xxxxxxxxxxxxxxxx>]

I know Kconfig and Makefile, and I found the contents of Kbuild and Makefile
are similar, so why we need Kbuild?��.n��������+%������w��{.n�����{��w�n'��{ay�ʇڙ���f���h������_�(�階�ݢj"��������G����?���&���iO����v��m������)�^j����?}��