perf symbols: Retain bfd reference to lookup source line numbers
Closng and re-opening for every lookup when using libbfd to lookup
source file name and line number is very very slow. Instead keep the
reference on struct dso.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386055390-13757-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index af4c687c..68aa55a 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -469,6 +469,7 @@
if (dso->lname_alloc)
free(dso->long_name);
dso_cache__free(&dso->cache);
+ dso__free_a2l(dso);
free(dso);
}