linux-kernel - Re: [patch] Missing defines in asm-alpha/unistd.h!?

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Date:	Mon, 21 May 2007 09:38:01 +0200
From:	Oliver Falk <oliver@...ux-kernel.at>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [patch] Missing defines in asm-alpha/unistd.h!?

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On 05/16/2007 09:38 PM, Heiko Carstens wrote:
>>>> arch/alpha/kernel/built-in.o:(.data+0x2d60): undefined reference to
>>>> `sys_pselect6'
>>>> arch/alpha/kernel/built-in.o:(.data+0x2d68): undefined reference to
>>>> `sys_ppoll'
>>>> I don't understand this... Any clue(s)?
>>> Needed to replace sys_pselect6 and sys_ppoll with alpha_ni_syscall... If
>>> this is very correct way to fix it!? :-/
>>>
>>> Can someone please have a look and correct me!?
>> Sergey just told me, that this is wrong. Patch is fine, but we need
>> another. Please apply as well.
>>
>> --- linux-2.6.21.alpha/include/asm-alpha/thread_info.h.alpha_thread	2007-05-16 16:08:18.000000000 +0200
>> +++ linux-2.6.21.alpha/include/asm-alpha/thread_info.h	2007-05-16 16:08:07.000000000 +0200
>> @@ -76,12 +76,14 @@
>>  #define TIF_UAC_NOFIX		7
>>  #define TIF_UAC_SIGBUS		8
>>  #define TIF_MEMDIE		9
>> +#define TIF_RESTORE_SIGMASK	11
>>
>>  #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
>>  #define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
>>  #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
>>  #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
>>  #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
>> +#define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
> 
> If you want to wire up pselect6 and ppoll you need to add full
> TIF_RESTORE_SIGMASK support. With your patches it compiles but is broken.
> Search the git commits for "TIF_RESTORE_MASK" and see how this was
> implemented on other architectures.
> Also you should put the alpha maintainers on cc when sending such patches.

Thx Heiko. Yes. I already saw that problem. I will add a new patch... I
was out of country the last days - I wanted to do it last week, but ...
LONG story... :-/

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