linux-kernel - Re: asm-generic/unistd.h and glibc use of NR

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Date:	Thu, 10 Mar 2011 12:07:35 -0500
From:	Chris Metcalf <cmetcalf@...era.com>
To:	<linasvepstas@...il.com>
CC:	Arnd Bergmann <arnd@...db.de>,
	GLIBC Devel <libc-alpha@...rceware.org>,
	<linux-kernel@...r.kernel.org>, <libc-ports@...rceware.org>
Subject: Re: asm-generic/unistd.h and glibc use of NR_ipc

On 3/10/2011 11:46 AM, Linas Vepstas wrote:
> Hi Chris,
>
> A question, and a patch follow:
>
> On 28 September 2010 08:05, Chris Metcalf <cmetcalf@...era.com> wrote:
>>  (Adding libc-ports to the cc list.)
>>
>> On 9/28/2010 4:40 AM, Arnd Bergmann wrote:
>>> Chris Metcalf is using the generic unistd.h file on the tile architecture
>>> and has a glibc port that should be easily portable to all future
>>> architectures. There are a few of them getting ready to be merged
>>> now (c6x, lm32, nios2, and some people have contacted me privately
>>> for architectures I cannot name).
>>>
>>> I expect that all of them will just use the same syscall ABI and glibc
>>> port.
>> [...]
> I note that this hasn't been merged into glibc-2.13, any particular
> explaintation for that?

Just that I haven't had the time -- I've been more focused on the kernel
community rather than glibc.  I'm still planning to do it when I have some
time!

> Anyway, it seems that pthread cancellation pints are missing
> from a couple of the functions.  e.g. for send, recv, one needs
> the following:

Thanks, that seems very plausible.  I'll update my copy of those sources so
it will be in the eventual submission to libc-ports.

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com

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