perf annotate: Support multiple histograms in annotation

The perf annotate tool continues aggregating everything on just one
histograms, but to support the top model add support for one histogram
perf evsel in the evlist.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c
index 8642823..294b495 100644
--- a/tools/perf/util/ui/browsers/hists.c
+++ b/tools/perf/util/ui/browsers/hists.c
@@ -797,7 +797,8 @@
 	return printed;
 }
 
-int hists__browse(struct hists *self, const char *helpline, const char *ev_name)
+int hists__browse(struct hists *self, const char *helpline,
+		  const char *ev_name, int evidx)
 {
 	struct hist_browser *browser = hist_browser__new(self);
 	struct pstack *fstack;
@@ -935,7 +936,7 @@
 			if (he == NULL)
 				continue;
 
-			hist_entry__tui_annotate(he);
+			hist_entry__tui_annotate(he, evidx);
 		} else if (choice == browse_map)
 			map__browse(browser->selection->map);
 		else if (choice == zoom_dso) {
@@ -984,7 +985,7 @@
 	return key;
 }
 
-int hists__tui_browse_tree(struct rb_root *self, const char *help)
+int hists__tui_browse_tree(struct rb_root *self, const char *help, int evidx)
 {
 	struct rb_node *first = rb_first(self), *nd = first, *next;
 	int key = 0;
@@ -993,7 +994,7 @@
 		struct hists *hists = rb_entry(nd, struct hists, rb_node);
 		const char *ev_name = __event_name(hists->type, hists->config);
 
-		key = hists__browse(hists, help, ev_name);
+		key = hists__browse(hists, help, ev_name, evidx);
 		switch (key) {
 		case NEWT_KEY_TAB:
 			next = rb_next(nd);