linux-kernel - [PATCH 12/54] perf tools: Enable config raw and numeric events

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Date:	Fri, 5 Feb 2016 14:01:37 +0000
From:	Wang Nan <wangnan0@...wei.com>
To:	Alexei Starovoitov <ast@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Brendan Gregg <brendan.d.gregg@...il.com>
CC:	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>,
	Wang Nan <wangnan0@...wei.com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 12/54] perf tools: Enable config raw and numeric events

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
 ...
 # Samples: 124  of event 'cycles'
 46.61%     0.00%  swapper        [kernel.vmlinux]            [k] cpu_startup_entry
 41.26%     0.00%  swapper        [kernel.vmlinux]            [k] start_secondary
 ...
 # Samples: 91  of event 'evtx'
 ...
 93.76%     0.00%  swapper      [kernel.vmlinux]            [k] cpu_startup_entry
         |
         ---cpu_startup_entry
            |
            |--66.63%--call_cpuidle
            |          cpuidle_enter
            |          |
 ...

Signed-off-by: Wang Nan <wangnan0@...wei.com>
Cc: He Kuang <hekuang@...wei.com>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Zefan Li <lizefan@...wei.com>
Cc: pi3orama@....com
---
 tools/perf/util/parse-events.c |  3 ++-
 tools/perf/util/parse-events.y | 10 ++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 4b15ece..e341b52 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1065,7 +1065,8 @@ int parse_events_add_numeric(struct parse_events_evlist *data,
 			return -ENOMEM;
 	}
 
-	return add_event(list, &data->idx, &attr, NULL, &config_terms);
+	return add_event(list, &data->idx, &attr,
+			 get_config_name(head_config), &config_terms);
 }
 
 int parse_events_add_pmu(struct parse_events_evlist *data,
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 3e0b563..77de5bb 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -434,24 +434,26 @@ PE_NAME ':' PE_NAME
 }
 
 event_legacy_numeric:
-PE_VALUE ':' PE_VALUE
+PE_VALUE ':' PE_VALUE opt_event_config
 {
 	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_numeric(data, list, (u32)$1, $3, NULL));
+	ABORT_ON(parse_events_add_numeric(data, list, (u32)$1, $3, $4));
+	parse_events__free_terms($4);
 	$$ = list;
 }
 
 event_legacy_raw:
-PE_RAW
+PE_RAW opt_event_config
 {
 	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_numeric(data, list, PERF_TYPE_RAW, $1, NULL));
+	ABORT_ON(parse_events_add_numeric(data, list, PERF_TYPE_RAW, $1, $2));
+	parse_events__free_terms($2);
 	$$ = list;
 }
 
-- 
1.8.3.4