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Date: Sun, 03 Feb 2013 19:21:23 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Al Viro <viro@ZenIV.linux.org.uk>
CC: Hans-Christian Egtvedt <egtvedt@samfundet.no>,
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        Haavard Skinnemoen <hskinnemoen@gmail.com>,
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        David Howells <dhowells@redhat.com>, Dave Jones <davej@redhat.com>,
        Will Deacon <will.deacon@arm.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arch: avr32: add dummy syscalls
References: <1359291015-4544-1-git-send-email-matthias.bgg@gmail.com> <20130127195714.GA11224@samfundet.no> <20130127203009.GG4503@ZenIV.linux.org.uk> <20130127203954.GA22063@samfundet.no> <20130204001055.GV4503@ZenIV.linux.org.uk> <20130204003047.GW4503@ZenIV.linux.org.uk> <20130204013111.GX4503@ZenIV.linux.org.uk>
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On 02/03/2013 05:31 PM, Al Viro wrote:
>
> Unless I'm misreading ocavr32.pdf, that should be (R12, R10:R11, R9, R8) and
> (R12, R10:R11, R9:R8, stack) resp., so fadvise64 doesn't need a wrapper, but
> fadvise64_64 does.  And something like (s32, s32, s64, s64) would turn into
> (R12, R11, R9:R8, stack, stack); AFAICS, we don't have anything that ugly...
>
> Automating *that* is going to be interesting...  I've not given up, but it's
> not going to be fun ;-/
>

Feel free to steal machinery from klibc... it has scripts to 
autogenerate stubs for arbitrary ABIs.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.