linux-kernel - Re: 64-syscall args on 32-bit vs syscall()

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Message-ID: <4B9E59B7.6060405@redhat.com>
Date:	Mon, 15 Mar 2010 09:00:55 -0700
From:	Ulrich Drepper <drepper@...hat.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Ralf Baechle <ralf@...ux-mips.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	David Miller <davem@...emloft.net>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel@...savvy.com,
	torvalds@...ux-foundation.org, munroesj@...ux.vnet.ibm.com
Subject: Re: 64-syscall args on 32-bit vs syscall()

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On 03/15/2010 08:13 AM, H. Peter Anvin wrote:
> One option would be to do a libkernel.so,

No need.  Put it in the vdso.  And name it something other than syscall.
 The syscall() API is fixed, you cannot change it.

All this only if it makes sense for ALL archs.  If it cannot work for
just one arch then it's not worth it at all.

- -- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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