linux-kernel - Re: [PATCH 01/21] perf c2c: Shared data analyser

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Date:	Mon, 10 Feb 2014 14:10:04 -0800
From:	Davidlohr Bueso <davidlohr@...com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	acme@...stprotocols.net, LKML <linux-kernel@...r.kernel.org>,
	jolsa@...hat.com, jmario@...hat.com, fowles@...each.com,
	eranian@...gle.com, Arnaldo Carvalho de Melo <acme@...hat.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Richard Fowles <rfowles@...hat.com>
Subject: Re: [PATCH 01/21] perf c2c: Shared data analyser

On Mon, 2014-02-10 at 14:18 -0500, Don Zickus wrote:
> From: Arnaldo Carvalho de Melo <acme@...hat.com>
> 
> This is the start of a new perf tool that will collect information about
> memory accesses and analyse it to find things like hot cachelines, etc.
> 
> This is basically trying to get a prototype written by Richard Fowles
> written using the tools/perf coding style and libraries.
> 
> Start it from 'perf sched', this patch starts the process by adding the
> 'record' subcommand to collect the needed mem loads and stores samples.
> 
> It also have the basic 'report' skeleton, resolving the sample address
> and hooking the events found in a perf.data file with methods to handle
> them, right now just printing the resolved perf_sample data structure
> after each event name.

What tree/branch is this developed against? I'm getting the following
with Linus' latest and tip tree:

builtin-c2c.c: In function ‘perf_c2c__process_sample’:
builtin-c2c.c:68:20: error: request for member ‘func’ in something not a structure or union
builtin-c2c.c:69:36: error: request for member ‘func’ in something not a structure or union
builtin-c2c.c: In function ‘perf_c2c__read_events’:
builtin-c2c.c:81:2: error: passing argument 1 of ‘perf_session__new’ from incompatible pointer type [-Werror]
In file included from builtin-c2c.c:6:0:
util/session.h:52:22: note: expected ‘struct perf_data_file *’ but argument is of type ‘const char *’
builtin-c2c.c:81:2: error: too many arguments to function ‘perf_session__new’
In file included from builtin-c2c.c:6:0:
util/session.h:52:22: note: declared here


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