[tip:perf/core] perf report: Treat an argument as a symbol filter

[tip-bot for Namhyung Kim <namhyung.kim@lge.com>]

Commit-ID:  6db6127c4dad634ab98709b81e2f2770890b0d53
Gitweb:     http://git.kernel.org/tip/6db6127c4dad634ab98709b81e2f2770890b0d53
Author:     Namhyung Kim <namhyung.kim@lge.com>
AuthorDate: Fri, 16 Mar 2012 17:50:55 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 16 Mar 2012 16:44:36 -0300

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>
---
 tools/perf/builtin-report.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

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