From: Christoph Egger <Christoph.Egger@amd.com>
To: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: xen kernel headers: circular dependencies
Date: Mon, 28 Mar 2011 11:56:42 +0200 [thread overview]
Message-ID: <4D905B5A.50209@amd.com> (raw)
Hi,
I just uncovered a circular header dependency starting from
_PAGE_NX.
_PAGE_NX is defined in asm-x86/x86_{64,32}/page.h and uses cpu_has_nx
cpu_has_nx is defined in asm-x86/cpufeature.h.
So make asm-x86/x86_{64,32}/page.h include <asm/cpufeature.h>
cpufeature.h uses boot_cpu_data which is declared in asm-x86/processor.h
So make cpufeature.h include <asm/processor.h>
processor.h uses NCAPINTS which is defined in cpufeature.h
processor.h already includes cpufeature.h
gcc fails to build with complaining about implicit declaration of
function 'get_cpu_info' then.
Any suggestions on how to fix this?
Christoph
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next reply other threads:[~2011-03-28 9:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-28 9:56 Christoph Egger [this message]
2011-03-28 12:46 ` xen kernel headers: circular dependencies Keir Fraser
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