the file with the same name

孙建希 ycsunjane at gmail.com
Sun Nov 23 03:25:11 EST 2014


hello,

I found there's many files with same name in kernel.
e.g:
include/asm/linkage.h
arch/x86/include/asm/linkage.h

I know when compile for x86, kbuild will use x86 linkage.h. But how?use
#ifndef or anything other?
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