linux-kernel - Re: [PATCH 1/2] elf loader support for auxvec base platform string

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Date:	Mon, 7 Jul 2008 11:16:13 -0500
From:	Nathan Lynch <ntl@...ox.com>
To:	Roland McGrath <roland@...hat.com>
Cc:	benh@...nel.crashing.org, linuxppc-dev@...abs.org,
	Paul Mackerras <paulus@...ba.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] elf loader support for auxvec base platform string

Roland McGrath wrote:
> > Well, we use strings to represent the platforms already (ie, the actual
> > CPU microarchitecture). Fitting those into bits would be annoying, it
> 
> Then use dsocaps.
> 
> > makes sense to have AT_BASE_PLATFORM to be the "base" variant of
> > AT_PLATFORM.
> 
> I understand why you think so.  But let's not be too abstract.  The
> purpose of the addition is to drive ld.so's selection of libraries, yes?

That is one purpose.  But there are others (JVMs, performance tools).
dsocaps seems to be an ld.so-specific thing... or am I missing how a
"third-party" program would use it?
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