linux-kernel - [tip:perf/urgent] perf machine: Use map as success in ip__resolve

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Date:	Tue, 11 Mar 2014 03:16:57 -0700
From:	tip-bot for Don Zickus <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
	hpa@...or.com, mingo@...nel.org, jolsa@...hat.com,
	tglx@...utronix.de, dzickus@...hat.com
Subject: [tip:perf/urgent] perf machine:
  Use map as success in ip__resolve_ams

Commit-ID:  fdf57dd052d5cbd415533ae98f4d423286a85220
Gitweb:     http://git.kernel.org/tip/fdf57dd052d5cbd415533ae98f4d423286a85220
Author:     Don Zickus <dzickus@...hat.com>
AuthorDate: Tue, 25 Feb 2014 22:43:45 -0500
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 10 Mar 2014 11:19:36 -0300

perf machine: Use map as success in ip__resolve_ams

When trying to map a bunch of instruction addresses to their respective
threads, I kept getting a lot of bogus entries [I forget the exact
reason as I patched my code months ago].

Looking through ip__resolve_ams, I noticed the check for

  if (al.sym)

and realized, most times I have an al.map definition but sometimes an
al.sym is undefined.  In the cases where al.sym is undefined, the loop
keeps going even though a valid al.map exists.

Modify this check to use the more reliable al.map.  This fixed my bogus
entries.

Signed-off-by: Don Zickus <dzickus@...hat.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1393386227-149412-2-git-send-email-dzickus@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/machine.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index c872991..620a198 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1213,7 +1213,7 @@ static void ip__resolve_ams(struct machine *machine, struct thread *thread,
 		 */
 		thread__find_addr_location(thread, machine, m, MAP__FUNCTION,
 				ip, &al);
-		if (al.sym)
+		if (al.map)
 			goto found;
 	}
 found:
--
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