linux-kernel - [PATCH] perf tools: mark branch

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Date:	Mon, 14 Jan 2013 15:02:45 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	peterz@...radead.org, jolsa@...hat.com, acme@...hat.com,
	mingo@...e.hu, namhyung.kim@....com
Subject: [PATCH] perf tools: mark branch_info maps as referenced


As noticed by Jiri, the hist_entry->branch_info.to/from maps
need to be marked as referenced to avoid problems later on.
So we do this when the hist_entry is allocated.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
--

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cb17e2a..ab35b82 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -242,6 +242,14 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template)
 
 		if (he->ms.map)
 			he->ms.map->referenced = true;
+
+		if (he->branch_info) {
+			if (he->branch_info->from.map)
+				he->branch_info->from.map->referenced = true;
+			if (he->branch_info->to.map)
+				he->branch_info->to.map->referenced = true;
+		}
+
 		if (symbol_conf.use_callchain)
 			callchain_init(he->callchain);
 
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