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xen-devel
Re: [Xen-devel] [PATCH] minios: minor buildsystem fixes
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To: |
Christoph Egger <Christoph.Egger@xxxxxxx> |
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Subject: |
Re: [Xen-devel] [PATCH] minios: minor buildsystem fixes |
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From: |
Samuel Thibault <samuel.thibault@xxxxxxxxxxxx> |
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Date: |
Thu, 16 Jul 2009 09:46:23 -0400 |
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Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> |
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Thu, 16 Jul 2009 06:47:06 -0700 |
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<C68370A6.F977%keir.fraser@xxxxxxxxxxxxx> <200907151142.48343.Christoph.Egger@xxxxxxx> <19037.64984.324031.106467@xxxxxxxxxxxxxxxxxxxxxxxx> <200907161417.21029.Christoph.Egger@xxxxxxx> |
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Christoph Egger, le Thu 16 Jul 2009 14:17:20 +0200, a écrit :
> > And certainly not the host operating system's libraries for our
> > cross-build !
>
> Please explain why not.
> It's a question of having a proper abstraction.
It's a problem of ABI. For instance, there is no way to implement
x86_64's red zone without adding a kernel/user separation in MiniOS ;
libcs usually assume that the red zone is available, thus some patching
to newlib for instance.
> > > Linux build will default to first, NetBSD build will default to latter
> > > one.
> >
> > In particular I think this is quite wrong.
>
> Please explain why.
It's asking for having to fix issues coming from both linux' case and
NetBSD's case, while using the same libc all the time would bring just
one case.
Samuel
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