perf top: Add --percentage option

The --percentage option is for controlling overhead percentage
displayed.  It can only receive either of "relative" or "absolute".
Move the parser callback function into a common location since it's
used by multiple commands now.

For more information, please see previous commit same thing done to
"perf report".

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1397145720-8063-4-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@redhat.com>

1 files changed, 1 insertions, 15 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 7ec351bda833..af8cb7a2c9b6 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -717,20 +717,6 @@ parse_percent_limit(const struct option *opt, const char *str,
         return 0;
 }
 
-static int
-parse_percentage(const struct option *opt __maybe_unused, const char *str,
-                 int unset __maybe_unused)
-{
-        if (!strcmp(str, "relative"))
-                symbol_conf.filter_relative = true;
-        else if (!strcmp(str, "absolute"))
-                symbol_conf.filter_relative = false;
-        else
-                return -1;
-
-        return 0;
-}
-
 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 {
         struct perf_session *session;
@@ -854,7 +840,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
         OPT_CALLBACK(0, "percent-limit", &report, "percent",
                      "Don't show entries under that percent", parse_percent_limit),
         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
-                     "how to display percentage of filtered entries", parse_percentage),
+                     "how to display percentage of filtered entries", parse_filter_percentage),
         OPT_END()
         };
         struct perf_data_file file = {