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Date: Fri, 25 Apr 2008 13:09:30 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andi Kleen <andi@firstfloor.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Ingo Molnar <mingo@elte.hu>, Jiri Slaby <jirislaby@gmail.com>,
       David Miller <davem@davemloft.net>, zdenek.kabelac@gmail.com,
       rjw@sisk.pl, paulmck@linux.vnet.ibm.com, akpm@linux-foundation.org,
       linux-ext4@vger.kernel.org, herbert@gondor.apana.org.au,
       penberg@cs.helsinki.fi, clameter@sgi.com, linux-kernel@vger.kernel.org,
       pageexec@freemail.hu, Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH 1/1] x86: fix text_poke
References: <20080425152650.GA894@elte.hu> <alpine.LFD.1.10.0804250830200.2779@woody.linux-foundation.org> <20080425154854.GC3265@one.firstfloor.org> <alpine.LFD.1.10.0804250904560.2779@woody.linux-foundation.org> <20080425161916.GD3265@one.firstfloor.org> <20080425163035.GE9503@Krystal> <481209F2.4050908@zytor.com> <20080425170929.GA16180@Krystal> <20080425183748.GB16180@Krystal> <48122ECF.405@zytor.com> <20080425200423.GA25950@Krystal>
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Mathieu Desnoyers wrote:
> 
>> There are only two ways to deal with this - extensive analysis of the 
>> entire flow of control, or telling the compiler exactly what is *actually* 
>> going on.  The latter is the preferred way, obviously.
>>
> 
> Yes, in an ideal world, gcc would help here.
> 

gcc is a free software project, and the gcc maintainers are around and 
can be approached.  A good proposal will go a long way, and patches will 
go even longer.

	-hpa