linux-kernel - [PATCH 5/5] perf, tools: Expand PMU events by prefetch match

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Date:	Fri,  5 Jun 2015 14:14:38 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	sukadev@...ux.vnet.ibm.com
Cc:	jolsa@...hat.com, acme@...nel.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 5/5] perf, tools: Expand PMU events by prefetch match

From: Andi Kleen <ak@...ux.intel.com>

When the user specifies a pmu directly, expand it automatically
with a prefix match, similar as we do for the normal aliases now.
This allows to specify attributes for duplicated boxes quickly.
For example uncore_cbox_{0,8}/.../ can be now specified as cbox/.../
and it gets automatically expanded.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 tools/perf/util/parse-events.y | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 2b90fb8..eb9aced 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -209,7 +209,23 @@ PE_NAME '/' event_config '/'
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_pmu(data, list, $1, $3));
+	if (parse_events_add_pmu(data, list, $1, $3)) {
+		struct perf_pmu *pmu = NULL;
+		int ok = 0;
+
+		while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+			char *name = pmu->name;
+
+			if (!strncmp(name, "uncore_", 7))
+				name += 7;
+			if (!strncmp($1, name, strlen($1))) {
+				if (!parse_events_add_pmu(data, list, pmu->name, $3))
+					ok++;
+			}
+		}
+		if (!ok)
+			YYABORT;
+	}
 	parse_events__free_terms($3);
 	$$ = list;
 }
-- 
2.4.2

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