From: BlaisorBlade <blaisorblade_spam@yahoo.it>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: Anthony Brock <brocka@sterlingcgi.com>
Subject: Re: [uml-devel] SKAS on AMD 64-Bit
Date: Mon, 23 Aug 2004 17:58:16 +0200 [thread overview]
Message-ID: <200408231758.16810.blaisorblade_spam@yahoo.it> (raw)
In-Reply-To: <LEEIJGBJEEABAGOFFGAHCEHMCBAA.brocka@sterlingcgi.com>
Alle 01:13, lunedì 16 agosto 2004, Anthony Brock ha scritto:
> It would probably help if I included the patch! :)
Hmmm... are you trying to run a normal UML binary, I guess, i.e. a 32-bit app
which would also run onto a x86 pc, right? 64bit UMLs don't support well the
SKAS mode (actually, I never tested this, but there are some significant
changes in the SKAS code in the x86_64-UML patch).
I wrote a patch for this, applying onto a vanilla 2.4 kernel tree, but I never
tested it (not even if it compiled). And I'm rechecking it, and there are
some bugs in it.
About your patch, there is just a big bug in your patch (if you want to run a
*32* bit UML): when a 32 bit app invokes a syscall, let's say mmap, actually
it calls the sys32_ version of it, if that one exists, in this case
sys32_mmap. You can check the name of the syscall functions in
arch/x86_64/ia32/ia32entry.S. There are some such bugs in my patch, too, in
fact. However, when I come back (I'm on holidays and far from Internet -
today is 23 August), if you want to help (i.e. actually test the patches),
just email me and I'll finish the porting and publish it.
--
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
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next prev parent reply other threads:[~2004-08-29 21:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-06 18:41 [uml-devel] SKAS on AMD 64-Bit Anthony Brock
2004-08-15 21:44 ` Anthony Brock
2004-08-15 23:13 ` Anthony Brock
2004-08-23 15:58 ` BlaisorBlade [this message]
2004-08-31 23:08 ` [uml-devel] UML " Qinghua(Kevin) Ye
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