linux-kernel - Re: [PATCH]exit.c: support larger exit code

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Date:	Mon, 9 Aug 2010 11:57:35 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Alexander Clouter <alex@...riz.org.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH]exit.c: support larger exit code

> There is probably a deeper reason as errno.h/errno-base.h all seem to be 
> one byte return codes too.  I'm starting to ponder if that top three 
> bytes are meant to carry some other information?

man 2 wait

and also note that int was 16bits in the times when Unix wait/exit
behaviour was formulated.

Alan
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