perf machine: Use map as success in ip__resolve_ams
authorDon Zickus <dzickus@redhat.com>
Wed, 26 Feb 2014 03:43:45 +0000 (22:43 -0500)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 10 Mar 2014 14:19:36 +0000 (11:19 -0300)
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@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1393386227-149412-2-git-send-email-dzickus@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/machine.c

index c872991..620a198 100644 (file)
@@ -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: