linux-kernel - [tip:perf/core] perf script: Fix symbol insertion behavior in db-export

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Message-ID: <tip-bd0a51dd2794f1d17d4e7a34ad66db845cef3e5a@git.kernel.org>
Date:	Thu, 12 May 2016 03:22:28 -0700
From:	tip-bot for Chris Phlipot <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	peterz@...radead.org, tglx@...utronix.de, hpa@...or.com,
	mingo@...nel.org, linux-kernel@...r.kernel.org,
	adrian.hunter@...el.com, cphlipot0@...il.com, acme@...hat.com
Subject: [tip:perf/core] perf script: Fix symbol insertion behavior in
 db-export

Commit-ID:  bd0a51dd2794f1d17d4e7a34ad66db845cef3e5a
Gitweb:     http://git.kernel.org/tip/bd0a51dd2794f1d17d4e7a34ad66db845cef3e5a
Author:     Chris Phlipot <cphlipot0@...il.com>
AuthorDate: Tue, 10 May 2016 20:26:47 -0700
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 11 May 2016 12:24:57 -0300

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>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lkml.kernel.org/r/1462937209-6032-3-git-send-email-cphlipot0@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.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) {