linux-kernel - [PATCH v2 2/4] perf script: fix symbol insertion behavior in db-export

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Date:	Tue, 10 May 2016 20:26:47 -0700
From:	Chris Phlipot <cphlipot0@...il.com>
To:	adrian.hunter@...el.com, acme@...nel.org, peterz@...radead.org,
	mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org, Chris Phlipot <cphlipot0@...il.com>
Subject: [PATCH v2 2/4] perf script: fix symbol insertion behavior in db-export

Use the dso__insert_symbol function instead of symbols__insert in order to
properly update the dso symbol cache.

If the cache is not updated, then duplicate symbols can be unintentionally
created, inserted, and exported.

This change prevents duplicate symbols from being exported due to
dso__find_symbol using a stale symbol cache.

Signed-off-by: Chris Phlipot <cphlipot0@...il.com>
---
 tools/perf/util/db-export.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
index f8e3057..2ef1f69 100644
--- a/tools/perf/util/db-export.c
+++ b/tools/perf/util/db-export.c
@@ -260,8 +260,7 @@ static int db_ids_from_al(struct db_export *dbe, struct addr_location *al,
 		if (!al->sym) {
 			al->sym = symbol__new(al->addr, 0, 0, "unknown");
 			if (al->sym)
-				symbols__insert(&dso->symbols[al->map->type],
-						al->sym);
+				dso__insert_symbol(dso, al->map->type, al->sym);
 		}
 
 		if (al->sym) {
-- 
2.7.4