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From: Werner Almesberger <Werner.Almesberger@epfl.ch>
To: Andries Brouwer <aeb@veritas.com>
Cc: Tigran Aivazian <tigran@veritas.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] removal of "static foo = 0"
Date: Sun, 26 Nov 2000 07:21:10 +0100	[thread overview]
Message-ID: <20001126072110.G599@almesberger.net> (raw)
In-Reply-To: <20001125211939.A6883@veritas.com> <Pine.LNX.4.21.0011252205500.768-100000@penguin.homenet> <20001126023239.B7049@veritas.com>
In-Reply-To: <20001126023239.B7049@veritas.com>; from aeb@veritas.com on Sun, Nov 26, 2000 at 02:32:39AM +0100

Andries Brouwer wrote:
> On Sat, Nov 25, 2000 at 10:27:15PM +0000, Tigran Aivazian wrote:

I think it's a bad sign if people like the two of you start flaming
each other ...

On the issue of  static int foo = 0;  vs.  static int foo;  I'd agree
with Andries' view. It's a common enough idiom that it is useful to
convey the intentions of the programmer.

On "optimizing" changes: there are plenty of very ugly things you can
do to a C program to make source or object code smaller (e.g. use only
one-character identifiers for smaller code; re-use variables as much
as possible, maybe with casts for smaller stack footprint, etc.). We
usually avoid these too, so a few extra initializations in the source
shouldn't hurt.

On the .data segment size: if all the energy that went into this
thread would have gone into implementing a gcc option to move all-zero
.data objects to .bss, the technical side of the problem would be
solved already ;-)

> Does the kernel contain a bug? Panic!  I don't think my alpha would
> have gotten an uptime of 1198 days under that paradigm.
> (I don't think you were serious, but still..)

Hmm, sometimes a panic _is_ the right answer, though. If a critical
subsystem just politely returns an error to user space and tries to
continue, it may take a while until somebody realizes that there's
something wrong at all ...

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, ICA, EPFL, CH           Werner.Almesberger@epfl.ch /
/_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/
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  parent reply	other threads:[~2000-11-26  6:51 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-11-25 20:19 [PATCH] removal of "static foo = 0" Andries Brouwer
2000-11-25 21:07 ` Russell King
2000-11-25 21:29   ` Andries Brouwer
2000-11-26  1:19     ` Russell King
2000-11-25 22:11 ` Herbert Xu
2000-11-25 22:46   ` Andries Brouwer
2000-11-25 22:53     ` James A Sutherland
2000-11-25 23:55       ` Tim Waugh
2000-11-26  3:10         ` James A Sutherland
2000-11-26 10:37         ` Tigran Aivazian
2000-11-26 14:52           ` Philipp Rumpf
2000-11-28  0:01           ` Peter Samuelson
2000-11-27  4:00         ` Michael Meissner
2000-11-25 23:02     ` Jeff Garzik
2000-11-26  2:08       ` Andries Brouwer
2000-11-26  9:22         ` Martin Mares
2000-11-25 23:33     ` Herbert Xu
2000-11-27 10:03     ` Helge Hafting
2000-11-27 20:33     ` Albert D. Cahalan
2000-11-27 22:57       ` Russell King
2000-11-29  1:46         ` Albert D. Cahalan
2000-11-29  3:21           ` Peter Samuelson
2000-11-29  7:25           ` Russell King
2000-11-25 22:27 ` Tigran Aivazian
2000-11-26  1:32   ` Andries Brouwer
2000-11-26  2:11     ` Georg Nikodym
2000-11-26  4:25       ` Alan Cox
2000-11-26  5:01         ` John Alvord
2000-11-26  5:10           ` Andre Hedrick
2000-11-26  6:22             ` Keith Owens
2000-11-26  6:28               ` Andre Hedrick
2000-11-26 10:43           ` Tigran Aivazian
2000-11-26 10:52           ` Tigran Aivazian
2000-11-24  7:47             ` Pavel Machek
2000-11-26 14:32             ` bert hubert
2000-11-26 10:52           ` Rogier Wolff
2000-11-26 14:13         ` Philipp Rumpf
2000-11-26 15:19         ` Georg Nikodym
2000-11-26 20:47         ` H. Peter Anvin
2000-11-27 21:12           ` Kai Henningsen
2000-11-26  6:21     ` Werner Almesberger [this message]
  -- strict thread matches above, loose matches on Subject: below --
2000-11-26 15:15 Adam J. Richter
2000-11-26 17:53 Elmer Joandi
2000-11-26 18:36 ` Alexander Viro
2000-11-26 19:11   ` Elmer Joandi
2000-11-26 22:49 ` Rogier Wolff
2000-11-27  5:56 Adam J. Richter
2000-11-27  8:41 ` Werner Almesberger
2000-11-27  8:39   ` David S. Miller
2000-11-27  9:08     ` Werner Almesberger
2000-11-27 17:21     ` Andrea Arcangeli
2000-11-27 17:36       ` Michael Meissner
2000-11-27 19:06         ` Andrea Arcangeli
2000-11-27 19:34           ` Richard B. Johnson
2000-11-28  0:28             ` Andrea Arcangeli
2000-11-28 11:25               ` Horst von Brand
2000-11-28  3:10           ` kumon
2000-11-28  3:28             ` Andrea Arcangeli
2000-11-28  3:35               ` Alexander Viro
2000-11-28  4:15                 ` Michael Meissner
2000-11-28  9:55                 ` Andreas Schwab
2000-11-28 15:16                   ` Andrea Arcangeli
2000-11-28 16:09                     ` Andreas Schwab
2000-11-28 19:29                       ` Andrea Arcangeli
2000-11-28 16:44                     ` Michael Meissner
2000-11-27 21:27         ` Marcus Sundberg
2000-11-27 18:11       ` Richard B. Johnson
2000-11-27 18:01   ` Michael Meissner

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