From: Andi Kleen <andi@firstfloor.org>
To: "Dr. David Alan Gilbert" <linux@treblig.org>
Cc: Andi Kleen <andi@firstfloor.org>,
"Nikita V. Youshchenko" <yoush@cs.msu.su>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Extended error reporting to user space?
Date: Wed, 17 Feb 2010 21:23:12 +0100 [thread overview]
Message-ID: <20100217202312.GQ21783@one.firstfloor.org> (raw)
In-Reply-To: <20100217192058.GA8937@gallifrey>
> I'd wondered about some form of halfway house where the error
> value is expanded but could be truncated for compatibility - i.e.
Who would do the truncation?
> if at the moment we had:
>
> return -EINVAL;
>
> it would become:
>
> return ERRORNUM(EINVAL, BADLENGTH);
x86 only has about 12 bits in the current ABI btw.
-Andi
next prev parent reply other threads:[~2010-02-17 20:23 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-16 12:20 Extended error reporting to user space? Nikita V. Youshchenko
2010-02-16 12:23 ` Alexey Dobriyan
2010-02-16 13:17 ` Américo Wang
2010-02-17 9:58 ` Andi Kleen
2010-02-17 10:16 ` Nikita V. Youshchenko
2010-02-17 10:35 ` Andi Kleen
2010-02-17 19:20 ` Dr. David Alan Gilbert
2010-02-17 20:23 ` Andi Kleen [this message]
2010-02-21 0:02 ` Dr. David Alan Gilbert
2010-02-17 10:43 ` Alan Cox
2010-02-17 11:57 ` Andi Kleen
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