perf report: Treat an argument as a symbol filter

As Ingo requested, it'd be better off treating first (and the only)
argument as a symbol filter, so that user doesn't need to input the
symbol on the dialog window on TUI.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1331887855-874-5-git-send-email-namhyung.kim@lge.com
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 80fb90741b64..c00545806bb7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -715,11 +715,16 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
         } else
                 symbol_conf.exclude_other = false;
 
-        /*
-         * Any (unrecognized) arguments left?
-         */
-        if (argc)
-                usage_with_options(report_usage, options);
+        if (argc) {
+                /*
+                 * Special case: if there's an argument left then assume that
+                 * it's a symbol filter:
+                 */
+                if (argc > 1)
+                        usage_with_options(report_usage, options);
+
+                report.symbol_filter_str = argv[0];
+        }
 
         sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);