perf report/top TUI: Support hotkey 'a' for annotation of unresolved addresses

In previous patch, we have supported the annotation functionality even
without symbols.

For this patch, it supports the hotkey 'a' on address in report view.
Note that, for branch mode, we only support the annotation for "branch
to" address.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200227043939.4403-4-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index d0f9745..1103a01 100644 (file)
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -3061,21 +3061,45 @@ do_hotkey:               // key came straight from options ui__popup_menu()
                                continue;
                        }
 
-                       if (browser->selection == NULL ||
-                           browser->selection->sym == NULL ||
-                           browser->selection->map->dso->annotate_warned)
+                       if (!browser->selection ||
+                           !browser->selection->map ||
+                           !browser->selection->map->dso ||
+                           browser->selection->map->dso->annotate_warned) {
                                continue;
+                       }
 
-                       if (symbol__annotation(browser->selection->sym)->src == NULL) {
-                               ui_browser__warning(&browser->b, delay_secs * 2,
-                                                   "No samples for the \"%s\" symbol.\n\n"
-                                                   "Probably appeared just in a callchain",
-                                                   browser->selection->sym->name);
-                               continue;
+                       if (!browser->selection->sym) {
+                               if (!browser->he_selection)
+                                       continue;
+
+                               if (sort__mode == SORT_MODE__BRANCH) {
+                                       bi = browser->he_selection->branch_info;
+                                       if (!bi || !bi->to.ms.map)
+                                               continue;
+
+                                       actions->ms.sym = symbol__new_unresolved(bi->to.al_addr, bi->to.ms.map);
+                                       actions->ms.map = bi->to.ms.map;
+                               } else {
+                                       actions->ms.sym = symbol__new_unresolved(browser->he_selection->ip,
+                                                                                browser->selection->map);
+                                       actions->ms.map = browser->selection->map;
+                               }
+
+                               if (!actions->ms.sym)
+                                       continue;
+                       } else {
+                               if (symbol__annotation(browser->selection->sym)->src == NULL) {
+                                       ui_browser__warning(&browser->b, delay_secs * 2,
+                                               "No samples for the \"%s\" symbol.\n\n"
+                                               "Probably appeared just in a callchain",
+                                               browser->selection->sym->name);
+                                       continue;
+                               }
+
+                               actions->ms.map = browser->selection->map;
+                               actions->ms.sym = browser->selection->sym;
                        }
 
-                       actions->ms.map = browser->selection->map;
-                       actions->ms.sym = browser->selection->sym;
                        do_annotate(browser, actions);
                        continue;
                case 'P':