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>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 80fb907..c005458 100644 (file)
--- 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);