From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steven Munroe <munroesj@linux.vnet.ibm.com>
Subject: Re: [patch] getauxval.3 correct AT_HWCAP result description
Date: Thu, 04 Aug 2016 15:35:43 -0500
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To: Szabolcs Nagy <szabolcs.nagy@arm.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>, "Cownie, James
 H" <james.h.cownie@intel.com>, nd@arm.com, "libc-alpha@sourceware.org" <libc-alpha@sourceware.org>, "linux-man@vger.kernel.org" <linux-man@vger.kernel.org>
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On Wed, 2016-07-13 at 09:13 +0100, Szabolcs Nagy wrote:
> On 12/07/16 21:24, Michael Kerrisk (man-pages) wrote:
> >>  .BR AT_HWCAP
> >> -A pointer to a multibyte mask of bits whose settings
> >> +A four byte long bit-mask whose settings
> >>  indicate detailed processor capabilities.
> 
> why is it four byte long?
> 
> it's a long and the target abi decides how many
> bits of that is used.
> 

For platforms that support 32- and 64-bit modes, maintaining AT_HWCAP at
32-bits simplifies code portability.