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From: Adrian Bunk <>
To: Tim Bird <>
Cc: Christoph Hellwig <>,
	linux kernel <>
Subject: Re: ANNOUNCE: CE Linux Forum - Specification V1.0 draft
Date: Wed, 19 May 2004 22:16:39 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Wed, May 19, 2004 at 09:59:08AM -0700, Tim Bird wrote:
> First, I'll point out that this spec, as you noted, is still
> a work in progress.
> Yes, the rationale is wrong.  Thanks for pointing that out.
> I'll get it fixed before we release a spec on this.  We have
> a separate agenda item in our size working group to look at
> inline expansions (See section 7.9.3 where it lists candidate
> projects that are not started yet.) There is already valuable
> work going on in the area of inline reduction, but
> unfortunately, we don't have anything to contribute to that
> discussion yet.

The main problem seems to be that you write much paper instead of 
simply writing and testing code.

Your approach might be a good solution for big projects, but if the 
changes are relatively simple it's not very useful.

> As for the patch, you are correct that the kernel makefile system
> supports compilation with -Os, and someone besides us submitted
> the patch for that.  However, there is more work needed to
> validate that the option doesn't break things, on many different
> architectures.
> I have reports from the uClinux crowd that use of
> the -Os option is fairly typical for users of uClinux, and they
> have no reports of breakage.  However, we want to take a methodical
> approach to validating that use of this option is fully supported
> by the Linux kernel.  Also, we want to test and report the size
> and performance effects of the use of the flag.  This work is
> not done yet, so the spec. is still under construction.

If you'd have asked people knowing the code (e.g. by sending an email to 
linux-kernel), you'd have already known:
- the ARM port always uses -Os in kernel 2.4
- the ACPI code is always compiled with -Os in kernel 2.4
- part of the ARM port always uses -Os with "recent" gcc in
  kernel 2.2



       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

  reply	other threads:[~2004-05-22  2:07 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-17 19:05 Tim Bird
2004-05-17 19:19 ` Christoph Hellwig
2004-05-17 19:59   ` Tim Bird
2004-05-17 20:42   ` Mark Gross
2004-05-17 20:48     ` Arjan van de Ven
     [not found]     ` <>
2004-05-18 19:32       ` Mark Gross
2004-05-18 19:56         ` Russell King
2004-05-18 20:45           ` Bartlomiej Zolnierkiewicz
2004-05-18 20:00         ` viro
2004-05-19 19:30       ` Tim Bird
2004-05-19 21:57         ` Russell King
2004-05-19 22:02           ` Jeff Garzik
2004-05-19 23:46           ` Tim Bird
2004-05-19 22:08         ` Theodore Ts'o
2004-05-19 23:37           ` Tim Bird
2004-05-17 21:22   ` Tim Bird
2004-05-19 15:27     ` Adrian Bunk
2004-05-19 16:59       ` Tim Bird
2004-05-19 20:16         ` Adrian Bunk [this message]
2004-05-19 20:38           ` Tim Bird
2004-05-19 20:48             ` Nicolas Pitre
2004-05-19 22:00         ` Russell King

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