linux-kernel - Re: [PATCH 12/55] perf tools: Enable config raw and numeric events

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Date:	Fri, 19 Feb 2016 12:15:33 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	Alexei Starovoitov <ast@...nel.org>,
	Brendan Gregg <brendan.d.gregg@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Cody P Schafer <dev@...yps.com>,
	"David S. Miller" <davem@...emloft.net>,
	He Kuang <hekuang@...wei.com>,
	Jérémie Galarneau 
	<jeremie.galarneau@...icios.com>, Jiri Olsa <jolsa@...nel.org>,
	Kirill Smelkov <kirr@...edi.com>,
	Li Zefan <lizefan@...wei.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 12/55] perf tools: Enable config raw and numeric events

Em Fri, Feb 19, 2016 at 12:08:47PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 19, 2016 at 11:44:00AM +0000, Wang Nan escreveu:
> > This patch allows setting config terms for raw and numeric events.
> > For example:
> > 
> >  # perf stat -e cycles/name=cyc/ ls
> >  ...
> >  1821108      cyc
> >  ...
> > 
> >  # perf stat -e r6530160/name=event/ ls
> >  ...
> >  1103195      event
> >  ...
> > 
> >  # perf record -e cycles -e 4:0x6530160/name=evtx,call-graph=fp/ -a sleep 1
> >  ...
> >  # perf report --stdio
> 
> Nice stuff, but I'm investigating now why I'm getting this:
> 
>   [acme@...et linux]$ make O=/tmp/build/perf -C tools/perf install-bin
>   make: Entering directory '/home/acme/git/linux/tools/perf'
>     BUILD:   Doing 'make -j4' parallel build
>     BISON    /tmp/build/perf/util/parse-events-bison.c
>   util/parse-events.y:436.23-38: error: symbol opt_event_config is used, but is not defined as a token and has no rules
>    PE_VALUE ':' PE_VALUE opt_event_config
>                          ^^^^^^^^^^^^^^^^

Ok, this is because I deferred the patch that introduces this
'opt_event_config' thing, that is buried in a BPF patch, when it
could've probably have stood out in a separate patch, trying that now.

- Arnaldo