From: Ingo Molnar <mingo@elte.hu>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andi Kleen <andi@firstfloor.org>, Al Viro <viro@ftp.linux.org.uk>,
WANG Cong <xiyou.wangcong@gmail.com>,
Sam Ravnborg <sam@ravnborg.org>, Nix <nix@esperi.org.uk>,
Jeff Dike <jdike@addtoit.com>,
Paolo Giarrusso <p.giarrusso@gmail.com>,
user-mode-linux-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org, Rob Landley <rob@landley.net>
Subject: Re: [uml-devel] User Mode Linux still doesn't build in 2.6.23-final.
Date: Tue, 23 Oct 2007 16:47:10 +0200 [thread overview]
Message-ID: <20071023144710.GA13785@elte.hu> (raw)
In-Reply-To: <471E05C0.4010005@goop.org>
* Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> Ingo Molnar wrote:
> > * Andi Kleen <andi@firstfloor.org> wrote:
> >
> >
> >>>> You should rename it then to "asmcall" or something.
> >>>>
> >>> if then that should be a separate renaming patch.
> >>>
> >> Well you're asking for the ugly hacks for out of tree code. [...]
> >>
> >
> > nice word-bending there. I'm asking for pre-existing annotations to
> > survive. It hurts you _nothing_ and it was a world of pain for us to
> > recover those lost annotations. Anyway, if Jeremy does not object to the
> > patch
>
> I don't have any objections to the idea of the patch, but I'm still
> concerned about the practical aspects of it. Maintaining these kinds
> of annotations is hard/fragile/etc when the compiler doesn't warn when
> you get it wrong, and only a very specific use-case will reveal the
> problem (and do so in a fairly obscure way).
it wont be any different from the situation before - we had no such
warnings there either. Anyway, this shouldnt really bother you as at the
moment it's only used for -rt. The issue is to keep something we had
before (but which was stupidly/carelessly removed). If it breaks we'll
fix it up.
> > we'll push it in and then rename fastcall to asmcall. Much ado about
> > nothing.
>
> Hm, "asmcall" is confusingly close to "asmlinkage" - and they have
> exactly the same intent (can be called from asm), but with exactly the
> opposite effect. How about something which actually says what we
> mean. How about just "regparm"?
yeah, regparm is fine.
Ingo
next prev parent reply other threads:[~2007-10-23 14:47 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-11 22:54 User Mode Linux still doesn't build in 2.6.23-final Rob Landley
2007-10-20 0:52 ` [uml-devel] " Paolo Giarrusso
2007-10-20 11:41 ` Nix
2007-10-21 11:48 ` WANG Cong
2007-10-21 13:08 ` Jeff Dike
2007-10-21 13:20 ` WANG Cong
2007-10-21 15:43 ` Al Viro
2007-10-22 4:37 ` WANG Cong
2007-10-22 5:22 ` Al Viro
2007-10-22 6:12 ` WANG Cong
2007-10-22 6:42 ` Nix
2007-10-22 6:52 ` WANG Cong
2007-10-22 6:59 ` Sam Ravnborg
2007-10-22 7:48 ` WANG Cong
2007-10-22 7:58 ` Robert P. J. Day
2007-10-22 11:36 ` Al Viro
2007-10-22 12:25 ` WANG Cong
2007-10-22 12:30 ` Ingo Molnar
2007-10-22 12:39 ` WANG Cong
2007-10-22 12:43 ` Al Viro
2007-10-22 12:45 ` Ingo Molnar
2007-10-22 23:14 ` Jeremy Fitzhardinge
2007-10-22 23:19 ` Ingo Molnar
2007-10-22 23:26 ` Jeremy Fitzhardinge
2007-10-22 23:56 ` Jeremy Fitzhardinge
2007-10-23 8:45 ` Ingo Molnar
2007-10-23 12:55 ` Andi Kleen
2007-10-23 13:10 ` Ingo Molnar
2007-10-23 14:01 ` Andi Kleen
2007-10-23 14:20 ` Ingo Molnar
2007-10-23 14:31 ` Jeremy Fitzhardinge
2007-10-23 14:47 ` Ingo Molnar [this message]
2007-10-23 15:11 ` Adrian Bunk
2007-10-23 14:48 ` Andi Kleen
2007-10-23 15:13 ` Ingo Molnar
2007-10-23 15:44 ` Ingo Molnar
2007-10-23 16:57 ` Andi Kleen
2007-10-23 13:25 ` Adrian Bunk
2007-10-23 14:20 ` Jeremy Fitzhardinge
2007-10-22 15:33 ` Jeff Dike
2007-10-22 7:01 ` Robert P. J. Day
2007-10-22 7:27 ` Al Viro
2007-10-22 20:24 ` Jeff Dike
2007-10-24 15:22 ` Jeff Dike
2007-10-24 16:14 ` Sam Ravnborg
2007-10-24 21:46 ` Rob Landley
2007-10-25 0:43 ` Jeff Dike
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