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Date: Fri, 06 Jul 2007 10:19:01 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Andi Kleen <andi@firstfloor.org>
CC: Gautam Singaraju <gautam.singaraju@gmail.com>,
       linux-kernel@vger.kernel.org
Subject: Re: syscall macro fails upon compilation
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Andi Kleen wrote:
>> They were *always* broken for 64-bit arguments on 32-bit machines, however.
> 
> Well syscall() doesn't support that at all (unless you split by hand)
> 

On i386 it just happens to work, because the calling convention is
equivalent.  On some other 32-bit platforms it works that way as well;
on others, it fails.

To do it right you need a proper assembly stub generator.

	-hpa