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From: "Peter T. Breuer" <ptb@it.uc3m.es>
To: "David Woodhouse" <dwmw2@infradead.org>
Cc: ptb@it.uc3m.es,
	"Herbert Rosmanith" <herp@wildsau.idv-edu.uni-linz.ac.at>,
	linux-kernel@vger.kernel.org, dhowells@cambridge.redhat.com
Subject: Re: [IDEA+RFC] Possible solution for min()/max() war
Date: Thu, 30 Aug 2001 23:32:55 +0200 (MET DST)	[thread overview]
Message-ID: <200108302132.f7ULWt221345@oboe.it.uc3m.es> (raw)
In-Reply-To: <10868.999206096@redhat.com> from "David Woodhouse" at "Aug 30, 2001 10:14:56 pm"

"David Woodhouse wrote:"
> 
> ptb@it.uc3m.es said:
> >  And I was hoping that somebody could produce some gcc magic
> > replacement for BUG() that means "don't compile me". Perhaps a bit of
> > illegal assembler code with a line reference in? Surely gcc must have
> > something like __builtin_wont_compile()? It just needs to be a leaf of
> > the RTL that evokes a compile error.
> 
> It's done. I believe it was called __builtin_ct_assertion(). I don't think 
> it got merged (yet?).

Now I think of it, I suppose

    unsafe_min_or_max_at_line_##__LINE__()

will definitely evoke a meaningful link error.

I still suspect that illegal assembler will do the job, since it must
be treated after gcc has produced assembler itself and line references
must still be present then for the assembler to be able to give meaningful
error messages (;), but assembler is not something I write, so someone
else needs to say.

Peter

  reply	other threads:[~2001-08-30 21:33 UTC|newest]

Thread overview: 158+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-30 20:44 [IDEA+RFC] Possible solution for min()/max() war Herbert Rosmanith
2001-08-30 21:06 ` Peter T. Breuer
2001-08-30 21:14   ` David Woodhouse
2001-08-30 21:32     ` Peter T. Breuer [this message]
2001-08-30 21:47       ` David Woodhouse
2001-08-30 21:56         ` Peter T. Breuer
2001-08-30 22:13           ` David Woodhouse
2001-08-30 22:47             ` Peter T. Breuer
2001-08-30 23:02               ` David Woodhouse
2001-08-31  0:08           ` Daniel Phillips
2001-08-30 21:49       ` Mark Zealey
2001-08-30 22:06         ` Peter T. Breuer
2001-08-30 22:14           ` Mark Zealey
2001-08-31  7:04   ` Herbert Rosmanith
2001-08-30 21:17 ` Richard B. Johnson
2001-08-30 21:45   ` Thomas Dodd
2001-08-30 21:46   ` Peter T. Breuer
2001-08-30 23:16   ` David Woodhouse
2001-08-30 23:33   ` David Wagner
2001-08-31 11:18   ` Bernd Schmidt
     [not found] <m2bskndlkt.fsf@sympatico.ca>
2001-09-07 17:39 ` Peter T. Breuer
  -- strict thread matches above, loose matches on Subject: below --
2001-09-06  1:51 Rick Hohensee
2001-09-06 10:12 ` VDA
2001-09-04 13:17 Petr Vandrovec
2001-09-04  9:09 VDA
2001-09-03 23:16 David desJardins
2001-09-03 20:35 David desJardins
2001-09-04  8:08 ` VDA
     [not found] <fa.eeq0k8v.1v28iaa@ifi.uio.no>
2001-08-31 18:40 ` Ted Unangst
2001-08-31 18:29 Andy Chou
2001-08-31 18:52 ` Roman Zippel
2001-08-31 18:24 Herbert Rosmanith
2001-08-31 18:13 Herbert Rosmanith
2001-08-31 17:41 Herbert Rosmanith
2001-08-31 17:57 ` Rik van Riel
     [not found] <fa.ehba65v.10i6abc@ifi.uio.no>
     [not found] ` <fa.odqvefv.g4k4j6@ifi.uio.no>
2001-08-31 15:45   ` ctm
2001-08-31 16:57     ` Roman Zippel
2001-08-31 14:28 Herbert Rosmanith
2001-08-31 14:37 ` Herbert Rosmanith
2001-08-31 14:28 Martin Knoblauch
2001-08-31  2:48 Rick Hohensee
2001-08-31  2:34 Andy Chou
     [not found] <20010830174227.A10673@furble>
2001-08-31  1:19 ` Peter T. Breuer
2001-08-31  2:10   ` Peter T. Breuer
2001-08-31  7:43   ` Jonathan Lundell
2001-08-31  8:27     ` Alex Bligh - linux-kernel
     [not found] <791753058.999219857@[169.254.198.40]>
2001-08-31  0:57 ` Peter T. Breuer
2001-08-30 20:35 Herbert Rosmanith
2001-08-30 17:32 mike_phillips
2001-08-30 17:45 ` Ion Badulescu
2001-08-30  9:56 Herbert Rosmanith
2001-08-30 13:09 ` Helge Hafting
     [not found] <200108291905.f7TJ59T11456@wildsau.idv-edu.uni-linz.ac.at>
2001-08-29 19:11 ` Herbert Rosmanith
2001-08-29  1:33 Ignacio Vazquez-Abrams
     [not found] <200108281746.f7SHk1O27199@lists.us.dell.com>
2001-08-28 19:33 ` Brad Chapman
2001-08-28 19:02   ` David Lang
2001-08-28 20:38     ` Brad Chapman
2001-08-28 19:25       ` David Lang
2001-08-28 20:34   ` Andreas Schwab
2001-08-28 20:42     ` Brad Chapman
2001-08-28 21:04       ` Christopher Friesen
2001-08-29  9:03       ` Helge Hafting
     [not found] <20010825024248.J8296@router.ranmachan.dyndns.org>
2001-08-25  0:54 ` Brad Chapman
     [not found] <20010825021651.I8296@router.ranmachan.dyndns.org>
2001-08-25  0:21 ` Brad Chapman
2001-08-24 22:42 Brad Chapman
2001-08-24 23:21 ` Ben LaHaise
2001-08-24 23:58   ` Brad Chapman
2001-08-25  0:13     ` Alexander Viro
2001-08-25  0:25       ` Brad Chapman
2001-08-25  0:34         ` Alexander Viro
2001-08-25  0:53           ` Brad Chapman
2001-08-25  1:15             ` Alexander Viro
2001-08-25 11:21               ` Brad Chapman
2001-08-27  0:02               ` Rusty Russell
2001-08-28  4:59                 ` Linus Torvalds
2001-08-28  5:20                   ` Alexander Viro
2001-08-28  5:51                     ` Linus Torvalds
2001-08-28 11:10                       ` Alan Cox
2001-08-28 14:15                         ` Linus Torvalds
2001-08-28 20:06                         ` John Alvord
2001-08-28 12:42                   ` Roman Zippel
2001-08-28 13:27                     ` Linus Torvalds
2001-08-28 14:19                       ` Roman Zippel
2001-08-28 15:14                         ` Linus Torvalds
2001-08-28 15:44                           ` Henning P. Schmiedehausen
2001-08-28 15:55                             ` Russell King
2001-08-28 16:05                             ` Alan Cox
2001-08-28 16:53                               ` Roman Zippel
2001-08-28 16:39                           ` Roman Zippel
2001-08-28 21:51                             ` Mike Castle
2001-08-29  0:33                           ` Daniel Phillips
2001-08-29  1:13                             ` Linus Torvalds
2001-08-29 15:42                               ` Daniel Phillips
2001-08-29 16:02                                 ` David Lang
2001-08-29 23:49                                   ` Daniel Phillips
2001-08-30  2:05                                     ` Bill Rugolsky Jr.
2001-08-30  3:28                                     ` Linus Torvalds
2001-08-30 13:10                                       ` Ion Badulescu
2001-08-30 13:17                                         ` David Woodhouse
2001-08-30 13:26                                           ` Ion Badulescu
2001-08-30 16:09                                         ` Linus Torvalds
2001-08-30 16:28                                           ` Ion Badulescu
2001-08-31 12:50                                             ` Jamie Lokier
2001-08-31 13:45                                               ` Roman Zippel
2001-08-31 16:27                                                 ` Jamie Lokier
2001-08-30 16:31                                           ` Ben LaHaise
2001-08-30 16:38                                           ` Peter T. Breuer
2001-08-30 19:51                                             ` David Weinehall
2001-08-30 20:16                                               ` Peter T. Breuer
2001-08-30 20:31                                               ` Daniel Phillips
     [not found]                                             ` <mit.lcs.mail.linux-kernel/200108301638.SAA04923@nbd.it.uc3m.es>
2001-08-30 22:42                                               ` Patrick J. LoPresti
2001-08-30 23:27                                                 ` Peter T. Breuer
2001-08-31  0:55                                                   ` Linus Torvalds
2001-08-31  1:28                                                     ` Peter T. Breuer
2001-08-31 13:22                                                     ` Peter T. Breuer
2001-08-31 14:02                                                       ` Linus Torvalds
2001-08-31 15:34                                                         ` Peter T. Breuer
2001-08-31 12:01                                                   ` Roman Zippel
2001-08-31 12:13                                                     ` Peter T. Breuer
2001-08-31 12:58                                                       ` Roman Zippel
2001-08-31 13:29                                                         ` Peter T. Breuer
2001-08-31 14:12                                                           ` Roman Zippel
2001-08-31 14:28                                                             ` Peter T. Breuer
2001-08-31 16:30                                                               ` Roman Zippel
2001-09-07  0:52                                                   ` Bill Pringlemeir
2001-09-07  7:26                                                     ` Peter T. Breuer
2001-09-07 12:28                                                       ` Horst von Brand
2001-09-07 18:03                                                         ` Mark H. Wood
2001-09-07 10:58                                                     ` Peter T. Breuer
2001-09-07 14:39                                                       ` Bill Pringlemeir
2001-09-07 15:17                                                         ` Peter T. Breuer
2001-08-30 13:49                                       ` Roman Zippel
2001-08-30 16:21                                         ` Linus Torvalds
2001-08-30 16:41                                           ` Christopher Friesen
2001-08-30 16:50                                             ` Linus Torvalds
2001-08-30 17:13                                           ` Roman Zippel
2001-08-31  1:28                                           ` Ion Badulescu
2001-08-31  5:08                                             ` Linus Torvalds
2001-08-31 12:37                                               ` Jamie Lokier
2001-08-31 13:54                                                 ` Linus Torvalds
2001-08-30 17:01                                       ` Daniel Phillips
2001-08-30 17:03                                         ` Peter T. Breuer
2001-08-30 17:26                                           ` Daniel Phillips
2001-08-31  8:04                                           ` Kai Henningsen
2001-08-30 21:16                                         ` Graham Murray
2001-08-30 21:47                                           ` David Weinehall
2001-08-31 10:10                                             ` Helge Hafting
     [not found]                                           ` <mit.lcs.mail.linux-kernel/m266b51c5c.fsf@barnowl.demon.co.uk>
2001-08-30 22:26                                             ` Patrick J. LoPresti
2001-08-28 16:09                         ` Andreas Schwab
2001-08-28 16:47                           ` Roman Zippel
2001-08-28 17:12                             ` Bill Rugolsky Jr.
2001-08-28 17:28                               ` Roman Zippel
2001-08-28 17:29                           ` Richard B. Johnson
2001-08-26 17:59             ` Bill Pringlemeir
2001-08-24 23:59   ` Brad Chapman
2001-08-25  0:07   ` David S. Miller
2001-08-25  0:18     ` Brad Chapman
2001-08-25  0:23     ` David S. Miller

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