perf annotate: Fix --show-nr-samples for tui/stdio2

perf annotate --show-nr-samples does not really show number of samples.

The reason is we have two separate variables for the same purpose.

One is in symbol_conf.show_nr_samples and another is
annotation_options.show_nr_samples.

We save command line option in symbol_conf.show_nr_samples but uses
annotation_option.show_nr_samples while rendering tui/stdio2 browser.

Though, we copy symbol_conf.show_nr_samples to
annotation__default_options.show_nr_samples but that is not really
effective as we don't use annotation__default_options once we copy
default options to dynamic variable annotate.opts in cmd_annotate().

Instead of all these complication, keep only one variable and use it all
over. symbol_conf.show_nr_samples is used by perf report/top as well. So
let's kill annotation_options.show_nr_samples.

On a side note, I've kept annotation_options.show_nr_samples definition
because it's still used by perf-config code. Follow up patch to fix
perf-config for annotate will remove annotation_options.show_nr_samples.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Yisheng Xie <xieyisheng1@huawei.com>
Link: http://lore.kernel.org/lkml/20200213064306.160480-4-ravi.bangoria@linux.ibm.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/browsers/annotate.c

@@ -835,9 +835,9 @@ static int annotate_browser__run(struct annotate_browser *browser,
 		case 't':
 			if (symbol_conf.show_total_period) {
 				symbol_conf.show_total_period = false;
-				notes->options->show_nr_samples = true;
-			} else if (notes->options->show_nr_samples)
-				notes->options->show_nr_samples = false;
+				symbol_conf.show_nr_samples = true;
+			} else if (symbol_conf.show_nr_samples)
+				symbol_conf.show_nr_samples = false;
 			else
 				symbol_conf.show_total_period = true;
 			annotation__update_column_widths(notes);

tools/perf/util/annotate.c

@@ -2917,7 +2917,7 @@ static void __annotation_line__write(struct annotation_line *al, struct annotati
 			obj__set_percent_color(obj, percent, current_entry);
 			if (symbol_conf.show_total_period) {
 				obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
-			} else if (notes->options->show_nr_samples) {
+			} else if (symbol_conf.show_nr_samples) {
 				obj__printf(obj, "%6" PRIu64 " ",
 						   al->data[i].he.nr_samples);
 			} else {
@@ -2932,7 +2932,7 @@ static void __annotation_line__write(struct annotation_line *al, struct annotati
 		else {
 			obj__printf(obj, "%-*s", pcnt_width,
 					   symbol_conf.show_total_period ? "Period" :
-					   notes->options->show_nr_samples ? "Samples" : "Percent");
+					   symbol_conf.show_nr_samples ? "Samples" : "Percent");
 		}
 	}
 
@@ -3154,8 +3154,6 @@ static int annotation__config(const char *var, const char *value,
 void annotation_config__init(void)
 {
 	perf_config(annotation__config, NULL);
-
-	annotation__default_options.show_nr_samples   = symbol_conf.show_nr_samples;
 }
 
 static unsigned int parse_percent_type(char *str1, char *str2)