perf script: Do not print dangling '=>' for BTS

When using:

	perf record -e branches:u -c1 usleep 1
	perf script -f ip

lines are displayed like:

	ffffffff813b23d5 =>

Change so that the dangling '=>' does not appear.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406035081-14301-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 333b15ebe72b..582da97872e5 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -446,13 +446,13 @@ static void print_sample_bts(union perf_event *event,
                                      PERF_MAX_STACK_DEPTH);
         }
 
-        printf(" => ");
-
         /* print branch_to information */
         if (PRINT_FIELD(ADDR) ||
             ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
-             !output[attr->type].user_set))
+             !output[attr->type].user_set)) {
+                printf(" => ");
                 print_sample_addr(event, sample, al->machine, thread, attr);
+        }
 
         if (print_srcline_last)
                 map__fprintf_srcline(al->map, al->addr, "\n  ", stdout);