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James Harper

2009-Aug-03 13:36 UTC

[Xen-devel] errors building - redefinitions in pci.h

I am just building a new Debian Lenny install and trying to ''make
tools''
on xen-3.4-testing.hg (no more than an hour or so old) and I get this:

  CC    i386-dm/pt-msi.o
In file included from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pass-through.h:22,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:5,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pci.h:171:1:
warning: "PCI_STATUS_66MHZ" redefined
In file included from /usr/include/pci/pci.h:13,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:4,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
/usr/include/pci/header.h:31:1: warning: this is the location of the
previous definition
In file included from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pass-through.h:22,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:5,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pci.h:173:1:
warning: "PCI_STATUS_FAST_BACK" redefined
In file included from /usr/include/pci/pci.h:13,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:4,
                 from
/usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
/usr/include/pci/header.h:33:1: warning: this is the location of the
previous definition

Any suggestions?

Thanks

James


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Derek Riley

2009-Aug-03 13:38 UTC

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Re: [Xen-devel] errors building - redefinitions in pci.h

Hello-
I am working on a project to modify Xen to precisely control the execution
times of the individual guest domains, and I need some help.  I considered
modifying the XM python program, but it is not precise or fast enough for my
application.

I want to be able to pass short, simple message quickly between an
application-level process and the Xen kernel asynchonously.  I found an IPC
mechanism designed for the method called netlink (
http://www.linuxjournal.com/article/7356), but I am not sure how to
incorporate it into the Xen kernel.  When I attempt to recompile the kernel
with netlink, I get errors that seem to stem from type issues I am not
familiar with.

2 questions:
Is it possible to use a mechanism such as netlink with Xen?  If so, how?
Is there other functionality within Xen that could be used with minimal
modification to do IPC within domain0?

Any help/advice would be greatly appreciated.  Thanks!
--Derek


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http://lists.xensource.com/xen-devel

Tom Rotenberg

2009-Aug-03 13:53 UTC

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Re: [Xen-devel] errors building - redefinitions in pci.h

It''s just warnings, i don''t think it will fail the build...

On Mon, Aug 3, 2009 at 4:36 PM, James
Harper<james.harper@bendigoit.com.au> wrote:> I am just building a new Debian Lenny install and trying to ''make
tools''
> on xen-3.4-testing.hg (no more than an hour or so old) and I get this:
>
>  CC    i386-dm/pt-msi.o
> In file included from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pass-through.h:22,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:5,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pci.h:171:1:
> warning: "PCI_STATUS_66MHZ" redefined
> In file included from /usr/include/pci/pci.h:13,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:4,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
> /usr/include/pci/header.h:31:1: warning: this is the location of the
> previous definition
> In file included from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pass-through.h:22,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:5,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pci.h:173:1:
> warning: "PCI_STATUS_FAST_BACK" redefined
> In file included from /usr/include/pci/pci.h:13,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.h:4,
>                 from
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/pt-msi.c:22:
> /usr/include/pci/header.h:33:1: warning: this is the location of the
> previous definition
>
> Any suggestions?
>
> Thanks
>
> James
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
_______________________________________________
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http://lists.xensource.com/xen-devel

James Harper

2009-Aug-03 23:13 UTC

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RE: [Xen-devel] errors building - redefinitions in pci.h

> 
> It''s just warnings, i don''t think it will fail the
build...
> 
Oops. So it is. I am getting build failures but the redifinitions are
nothing to do with it (funny how everything seems so much clearer after
a good nights sleep :)

James


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James Harper

2009-Aug-03 23:37 UTC

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RE: [Xen-devel] errors building - redefinitions in pci.h

Hey! Don''t hijack my thread - start your own!!!
(you appear to have replied to a message I posted, leaving the subject
as it was which is totally irrelevant to the questions you are asking.)

James
> 
> Hello-
> I am working on a project to modify Xen to precisely control the
execution> times of the individual guest domains, and I need some help.  I
considered> modifying the XM python program, but it is not precise or fast enough
for my> application.
> 
> I want to be able to pass short, simple message quickly between an
> application-level process and the Xen kernel asynchonously.  I found
an IPC> mechanism designed for the method called netlink
> (http://www.linuxjournal.com/article/7356), but I am not sure how to
> incorporate it into the Xen kernel.  When I attempt to recompile the
kernel> with netlink, I get errors that seem to stem from type issues I am not
> familiar with.
> 
> 2 questions:
> Is it possible to use a mechanism such as netlink with Xen?  If so,
how?> Is there other functionality within Xen that could be used with
minimal> modification to do IPC within domain0?
> 
> Any help/advice would be greatly appreciated.  Thanks!
> --Derek
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Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Xen devel - Aug 2009 - errors building - redefinitions in pci.h

[Xen-devel] errors building - redefinitions in pci.h

Re: [Xen-devel] errors building - redefinitions in pci.h

Re: [Xen-devel] errors building - redefinitions in pci.h

RE: [Xen-devel] errors building - redefinitions in pci.h

RE: [Xen-devel] errors building - redefinitions in pci.h