From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: David Miller <davem@davemloft.net>,
drepper@redhat.com, ralf@linux-mips.org,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel@teksavvy.com, torvalds@linux-foundation.org,
munroesj@linux.vnet.ibm.com
Subject: Re: 64-syscall args on 32-bit vs syscall()
Date: Tue, 16 Mar 2010 07:35:11 +1100 [thread overview]
Message-ID: <1268685311.2335.38.camel@pasglop> (raw)
In-Reply-To: <4B9E8D67.8040209@zytor.com>
On Mon, 2010-03-15 at 12:41 -0700, H. Peter Anvin wrote:
> I don't see why syscall() can't change the type for its first argument
> -- it seems to be exactly what symbol versioning is for.
>
> Doesn't change the fact that it is fundamentally broken, of course.
No need to change the type of the first arg and go for symbol
versionning if you do something like I proposed earlier, there will be
no conflict between syscall() and __syscall() and both variants can
exist.
Cheers,
Ben.
next prev parent reply other threads:[~2010-03-15 20:36 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-15 4:48 64-syscall args on 32-bit vs syscall() Benjamin Herrenschmidt
2010-03-15 5:06 ` David Miller
2010-03-15 5:18 ` Benjamin Herrenschmidt
2010-03-15 5:54 ` David Miller
2010-03-15 20:22 ` Benjamin Herrenschmidt
2010-03-15 13:44 ` Ralf Baechle
2010-03-15 15:13 ` H. Peter Anvin
2010-03-15 16:00 ` Ulrich Drepper
2010-03-15 19:00 ` David Miller
2010-03-15 19:41 ` H. Peter Anvin
2010-03-15 20:35 ` Benjamin Herrenschmidt [this message]
2010-03-15 20:41 ` H. Peter Anvin
2010-03-16 21:56 ` Steven Munroe
2010-03-17 0:31 ` Benjamin Herrenschmidt
2010-03-17 5:52 ` Ulrich Drepper
2010-03-17 8:56 ` Benjamin Herrenschmidt
2010-03-17 9:14 ` Ulrich Drepper
2010-03-17 10:13 ` Benjamin Herrenschmidt
2010-03-17 9:18 ` Jamie Lokier
2010-03-17 10:18 ` Benjamin Herrenschmidt
2010-03-17 18:30 ` H. Peter Anvin
2010-03-17 20:35 ` Benjamin Herrenschmidt
2010-03-17 20:53 ` H. Peter Anvin
2010-03-17 22:58 ` Benjamin Herrenschmidt
2010-03-18 16:08 ` Steven Munroe
2010-03-18 16:21 ` Andreas Schwab
2010-03-18 17:03 ` Steven Munroe
2010-03-18 21:18 ` Benjamin Herrenschmidt
2010-03-19 1:22 ` Jamie Lokier
2010-03-15 20:27 ` Benjamin Herrenschmidt
2010-03-15 15:03 ` Steven Munroe
2010-03-15 20:32 ` Benjamin Herrenschmidt
2010-03-15 15:04 ` Jamie Lokier
2010-03-15 20:33 ` Benjamin Herrenschmidt
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