linux-kernel - Re: [RFC PATCH] perf tui: Annotate entries in callchains

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Message-ID: <20150328162412.GO21510@kernel.org>
Date:	Sat, 28 Mar 2015 13:24:12 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Namhyung Kim <namhyung@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	linux-perf-users@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [RFC PATCH] perf tui: Annotate entries in callchains

Em Fri, Mar 27, 2015 at 04:05:03PM -0700, Stephane Eranian escreveu:
> On Mon, Mar 23, 2015 at 9:56 AM, Arnaldo Carvalho de Melo wrote:
> > Le 23 mars 2015 13:49:24 GMT-03:00, Stephane Eranian <eranian@...gle.com> a écrit :
> >>On Sun, Mar 22, 2015 at 5:27 PM, Namhyung Kim <namhyung@...nel.org>
> >>> Did you play with acme/perf/core not tip/perf/core?  I got same
> >>> problem but then I realize it's not the Arnaldo's tree.  When I
> >>> changed to acme/perf/core the problem disappeared. :)

> >>I was only trying it with tip.git. The patch looke simple enough to
> >>apply to tip.git but clearly it relies on some other infrastructure
> >>changes which I don't know about. In my case =, I care about getting
> >>this feature in tip.git or older versions of perf.

> > It is all in tip.git by now.

> >>> But unfortunately I got this segfault instead..

> > Needs a patch that is in perf/urgent

> If I pull tip.git now. Does it have what is needed to work?

Yes, it should, but you may hit the bug Namhyumg reported, fixed in:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/tools/perf/util/annotate.c?id=3995614d9b0320e10ce202836c8477e1bcf1a2d4

perf annotate: Fix fallback to unparsed disassembler line

----

Humm, by tip.git you mean tip.git/master?  /me checks...

[acme@...andy linux]$ git log --oneline tip/master
tools/perf/util/annotate.c | head -5
571564babaa3 Merge branch 'perf/core'
2c7da8c590ad perf annotate: Allow annotation for decompressed kernel modules    <------------------
3995614d9b03 perf annotate: Fix fallback to unparsed disassembler line
48000a1aed74 perf tools: Remove EOL whitespaces
0fb9f2aab738 perf annotate: Fix memory leaks in LOCK handling
[acme@...andy linux]$

Yeah, it is there, should have everything you need.

- Arnaldo
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