linux-kernel - Re: [PATCH] perf: Fix symbol resolution on old ppc64 ABI

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Message-ID: <20110725223232.4e2dce43@kryten>
Date:	Mon, 25 Jul 2011 22:32:32 +1000
From:	Anton Blanchard <anton@...ba.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	emunson@...bm.net, linux-kernel@...r.kernel.org, amodra@...il.com
Subject: Re: [PATCH] perf: Fix symbol resolution on old ppc64 ABI


Hi Ingo,

> > It would cover most cases. There would be an issue with functions 
> > that are less than 24 bytes in length (ie 6 instructions). Tiny 
> > functions are probably rare enough that we can live with it.
> 
> Do such tiny functions get packed tightly, below 24 bytes? Another 
> sanitization pass could solve that issue, to trim partially 
> overlapping symbol regions, right?

That would work I think. Should I cook up a patch?

Anton
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