linux-kernel - Re: [PATCH] basic perf support for sparc

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Message-ID: <20090801011429.GA4685@kryten>
Date:	Sat, 1 Aug 2009 11:14:29 +1000
From:	Anton Blanchard <anton@...ba.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	davem@...emloft.net, linux-kernel@...r.kernel.org,
	a.p.zijlstra@...llo.nl, fweisbec@...il.com,
	Ingo Molnar <mingo@...e.hu>, benh@...nel.crashing.org,
	penberg@...helsinki.fi, vegard.nossum@...il.com, paulus@...ba.org,
	williams@...hat.com, acme@...hat.com
Subject: Re: [PATCH] basic perf support for sparc


Hi,

> > Building the perf tool is somewhat involved on sparc64
> > though, since 64-bit versions of zlib/libelf/bfd aren't
> > directly available (at least on debian 5.x). But once you
> > get there, it runs :-). Would it be easier/functional
> > to build 32-bit userland perf instead?
> 
> Same is true on ppc64, btw. How are others handling this?

The requirement for libz was removed, so up until recently we only needed
a 64bit version of elfutils which is easy to build.

It looks like we now have a requirement on binutils which is considerably
more painful to build. One option is to make the bfd requirement optional, all
you lose would be the ability to see c++ demangled names I think.

Anton
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