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From: Ralf Baechle <ralf@linux-mips.org>
To: Daniel Jacobowitz <dan@debian.org>
Cc: "Joseph S. Myers" <joseph@codesourcery.com>, linux-mips@linux-mips.org
Subject: Re: N32 sigset and __COMPAT_ENDIAN_SWAP__
Date: Thu, 8 Jun 2006 18:36:58 +0100	[thread overview]
Message-ID: <20060608173658.GA4056@linux-mips.org> (raw)
In-Reply-To: <20060608170310.GA23814@nevyn.them.org>

On Thu, Jun 08, 2006 at 01:03:10PM -0400, Daniel Jacobowitz wrote:

> Anyway, I was curious if you knew where this code had come from.  I
> didn't see anything to suggest that anyone besides mipsel ever
> used it, but it entered linux-mips.org via a merge from kernel.org,
> just before git history.
> 
> Oh, right, there's a historical import:
> 
> http://www.kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commitdiff;h=32ed691a4efbc1c43584b7b7a6d782528241bb27

> It was copied from sys32_rt_sigtimedwait, which was wrong at least back
> to the initial revision of signal32.c.  I didn't go back any further.

I can further track it into 2.4 or even pre-2.4 where such
__MIPSEB__ / __MIPSEL__ dependencies did exist under arch/mips64/.
I think it was right until a certain point in 2.5 when
get_sigset and put_sigset were implement in a clever way that
automatically takes care of the endianess issue - but the swapping code
outside arch/mips got forgotten.

  Ralf

  reply	other threads:[~2006-06-08 17:37 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-08  1:36 N32 sigset and __COMPAT_ENDIAN_SWAP__ Joseph S. Myers
2006-06-08  2:25 ` Kumba
2006-06-08  2:28   ` Daniel Jacobowitz
2006-06-08  2:38     ` Kumba
2006-06-08  2:45       ` Kumba
2006-06-08 16:51 ` Ralf Baechle
2006-06-08 17:03   ` Daniel Jacobowitz
2006-06-08 17:36     ` Ralf Baechle [this message]
2006-06-08 17:12   ` Joseph S. Myers
2006-06-09  1:15     ` Kumba

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