linux-kernel - Re: [PATCH 3/3] perf tools: bring back old behavior when NO

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Message-ID: <20140120171952.GS20765@two.firstfloor.org>
Date:	Mon, 20 Jan 2014 18:19:52 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Stanislav Fomichev <stfomichev@...dex-team.ru>,
	a.p.zijlstra@...llo.nl, paulus@...ba.org, mingo@...hat.com,
	namhyung@...nel.org, jolsa@...hat.com, dsahern@...il.com,
	adrian.hunter@...el.com, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH 3/3] perf tools: bring back old behavior when
 NO_DEMAGLE doesn't link with libbfd

On Mon, Jan 20, 2014 at 10:22:25AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Jan 20, 2014 at 03:39:40PM +0400, Stanislav Fomichev escreveu:
> > This commit reverts part of the 3e6a147deef9 "perf tools: Separate lbfd
> > check out of NO_DEMANGLE condition" which always links perf with libbfd.
> > I'd like to preserve old behavior when NO_DEMAGLE does not link with
> > it, because some machines may contain different versions of binutils
> > (hence miss required libbfd version) and I still want an option to build perf
> > which works on any machine regardless of binutils version.

BFD is not only used for demangling, it's also used for decoding 
source lines now. So tying it only to NO_DEMANGLE would not be correct.

-Andi
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