[tip:perf/core] perf report: Show message for percent limit on gtk

[tip-bot for Namhyung Kim <tipbot@zytor.com>]

Commit-ID:  2ddda792373065577eb9207370cb7a28395caffa
Gitweb:     http://git.kernel.org/tip/2ddda792373065577eb9207370cb7a28395caffa
Author:     Namhyung Kim <namhyung@kernel.org>
AuthorDate: Fri, 26 Feb 2016 21:13:20 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 26 Feb 2016 11:20:36 -0300

perf report: Show message for percent limit on gtk

Like the stdio, it should show messages about omitted hierarchy
entries.  Please refer the previous commit for more details.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456488800-28124-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/gtk/hists.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 7f343339..a5758fd 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -449,6 +449,17 @@ static void perf_gtk__add_hierarchy_entries(struct hists *hists,
 			perf_gtk__add_hierarchy_entries(hists, &he->hroot_out,
 							store, &iter, hpp,
 							min_pcnt);
+
+			if (!hist_entry__has_hierarchy_children(he, min_pcnt)) {
+				char buf[32];
+				GtkTreeIter child;
+
+				snprintf(buf, sizeof(buf), "no entry >= %.2f%%",
+					 min_pcnt);
+
+				gtk_tree_store_append(store, &child, &iter);
+				gtk_tree_store_set(store, &child, col_idx, buf, -1);
+			}
 		}
 
 		if (symbol_conf.use_callchain && he->leaf) {