Date: Fri, 19 Jun 2015 18:14:31 -0300
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Yannick Brosseau <scientist@fb.com>
Cc: Jeff Epler <jepler@unpythonic.net>, mingo@redhat.com, paulus@samba.org,
        a.p.zijlstra@chello.nl, jolsa@kernel.org, ak@linux.intel.com,
        linux-kernel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH] perf report: Fix sort__sym_cmp to also compare end of
 symbol
Message-ID: <20150619211431.GC28405@kernel.org>
References: <1434584470-17771-1-git-send-email-scientist@fb.com>
 <20150617235343.GB84349@unpythonic.net>
 <5582090E.5060209@fb.com>
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Em Wed, Jun 17, 2015 at 04:55:58PM -0700, Yannick Brosseau escreveu:
> On 06/17/2015 04:53 PM, Jeff Epler wrote:
> > On Wed, Jun 17, 2015 at 04:41:10PM -0700, Yannick Brosseau wrote:
> >> When using a map file from a JIT, due to memory reuse, we can
> >> obtain multiple symbols with the same start address but a different
> >> length.
> > Is there some reason it's impossible for the reused memory to have the
> > same length / end address?
> >
> It's possible that they are the same, and in that case the function
> returns 0.
> The patch is adding the handling of the case where they are different.

Looks sensible, applied.

- Arnaldo
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