perf annotate stdio: Support --show-nr-samples option

Add --show-nr-samples option to "perf annotate" so that it matches "perf
report".

Committer note:

Note that it can't be used together with --show-total-period, which
seems like a silly limitation, that can be lifted at some point.

Made it bail out if not on --stdio.

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1503046008-5511-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 2dab0e5a7f2f..4397a8b6e6cd 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1145,6 +1145,9 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
                         if (symbol_conf.show_total_period)
                                 color_fprintf(stdout, color, " %11" PRIu64,
                                               sample.period);
+                        else if (symbol_conf.show_nr_samples)
+                                color_fprintf(stdout, color, " %7" PRIu64,
+                                              sample.nr_samples);
                         else
                                 color_fprintf(stdout, color, " %7.2f", percent);
                 }
@@ -1825,7 +1828,8 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
                 width *= evsel->nr_members;
 
         graph_dotted_len = printf(" %-*.*s|     Source code & Disassembly of %s for %s (%" PRIu64 " samples)\n",
-                                  width, width, symbol_conf.show_total_period ? "Event count" : "Percent",
+                                  width, width, symbol_conf.show_total_period ? "Period" :
+                                  symbol_conf.show_nr_samples ? "Samples" : "Percent",
                                   d_filename, evsel_name, h->nr_samples);
 
         printf("%-*.*s----\n",