From: "H. Peter Anvin" <hpa@zytor.com>
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
Date: Fri, 06 Jul 2007 10:19:01 -0700 [thread overview]
Message-ID: <468E7985.7050502@zytor.com> (raw)
In-Reply-To: <20070706170512.GA8174@one.firstfloor.org>
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
next prev parent reply other threads:[~2007-07-06 17:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-05 22:09 Gautam Singaraju
2007-07-05 22:13 ` H. Peter Anvin
2007-07-06 11:53 ` Andi Kleen
2007-07-06 15:55 ` Gautam Singaraju
2007-07-06 16:12 ` H. Peter Anvin
2007-07-06 16:11 ` H. Peter Anvin
2007-07-06 17:05 ` Andi Kleen
2007-07-06 17:19 ` H. Peter Anvin [this message]
2007-07-05 22:17 ` Davide Libenzi
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