linux-kernel - Re: [PATCH] doc: volatile considered evil

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Message-Id: <200705091847.45504.rob@landley.net>
Date:	Wed, 9 May 2007 18:47:44 -0400
From:	Rob Landley <rob@...dley.net>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	David Rientjes <rientjes@...gle.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Satyam Sharma <satyam.sharma@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Sokolovsky <pmiscml@...il.com>,
	linux-kernel@...r.kernel.org, jeremy@...p.org
Subject: Re: [PATCH] doc: volatile considered evil

On Wednesday 09 May 2007 4:23 pm, Alan Cox wrote:
> arch/foo almost always supports a single compiler too - gcc. We simply
> don't support anything else. We use gcc inlines and features extensively.
> 
> And who cares about such fine detail of C99, did they fix the struct copy
> bug in ANSI C even ? [1]

Um, I've picked up the tinycc baton (in my copious free time) and am slowly 
trying to get it to build a bootable linux kernel.  There's a ways to go, and 
I really have no idea what I'm doing, but I have help and even made a release 
recently (which is already significantly out of date, largely thanks to David 
Wheeler):

http://landley.net/code/tinycc/

Admittedly, a lot of this involves implementing gcc extensions, but gratuitous 
use of them when there's a perfectly good c99 way of doing it isn't 
necessarily a plus.  Fabrice got it as far as tccboot before QEMU ate his 
life, we've improved a bit since then, and there's presumably a finite amount 
of work left to be done...

Rob
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