From: Matt Ayres <matta@tektonic.net>
To: BlaisorBlade <blaisorblade_spam@yahoo.it>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] [PATCH] skas3 for x86_64 arch
Date: Fri, 20 Feb 2004 16:05:26 -0500 [thread overview]
Message-ID: <1077311125.8412.78.camel@wopr.tektonic.net> (raw)
In-Reply-To: <200402202155.44773.blaisorblade_spam@yahoo.it>
On Fri, 2004-02-20 at 15:55, BlaisorBlade wrote:
> Alle 20:24, venerdì 20 febbraio 2004, Matt Ayres ha scritto:
> > Hi,
> >
> > I just did a quick port of the skas3 patch to the x86_64 architecture.
> > Everything seems very straightforward except for the do_mmap2 function.
>
> Sorry, but you've changed the prototype of sys32_mmap2 by adding the mm
> parameter (which goes only on do_mmap2). So it cannot possibly compile.
That area confuses me, I can't find anything in the kernel that actually
uses sys32_mmap2. I've changed it for compatibility, but i'm not sure
how it will work. do_mmap2 doesn't exist for x86_64. do_mmap2 did
exist in kernel 2.4.20 and I simply copied the code from there. I've
uploaded a new patch,
https://www.tektonic.net/public/linux-2.4.25-x86_64-skas3.patch. I
wasn't using the updated skas patch for 2.4.25 so it wouldn't have
worked anyway. The main problem I think is that skas changes the
do_mmap_pgoff function, so I had to update the arch/x86_64/sys_x86_64.c
file also where I don't even think it will actually touch any code in
that file as UML will be running in 32-bit mode.
>
> Have you tried a cross build with make ARCH=x86_64 ? I'm not sure if that can
> work or requires cross-compilators, but maybe not.
Yes, I tried that and got an error very early saying it can't be done.
The x86_64 emulator seems to cost money. I'll have to see if i'm using
a cross compiler or not, I always thought gcc had that enabled by
default.
--
Matt Ayres <matta@tektonic.net>
TekTonic
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next prev parent reply other threads:[~2004-02-20 21:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-20 19:24 [uml-devel] [PATCH] skas3 for x86_64 arch Matt Ayres
2004-02-20 20:55 ` BlaisorBlade
2004-02-20 21:05 ` Matt Ayres [this message]
2004-02-21 9:45 ` Cameron Patrick
2004-02-22 2:51 ` matta
2004-02-22 3:06 ` Cameron Patrick
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