perf report: Move symbol annotation to the resort phase

Currently we make the annotation for the IPC column during the entry
display, already outside of the progress bar scope, so it appears like
'perf report' is stuck.

Move the annotation retrieval to the resort phase, so that all the data
are ready for display.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190204141808.23031-4-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-report.c

@@ -616,6 +616,21 @@ static int report__collapse_hists(struct report *rep)
 	return ret;
 }
 
+static int hists__resort_cb(struct hist_entry *he, void *arg)
+{
+	struct report *rep = arg;
+	struct symbol *sym = he->ms.sym;
+
+	if (rep->symbol_ipc && sym && !sym->annotate2) {
+		struct perf_evsel *evsel = hists_to_evsel(he->hists);
+
+		symbol__annotate2(sym, he->ms.map, evsel,
+				  &annotation__default_options, NULL);
+	}
+
+	return 0;
+}
+
 static void report__output_resort(struct report *rep)
 {
 	struct ui_progress prog;
@@ -623,8 +638,10 @@ static void report__output_resort(struct report *rep)
 
 	ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 
-	evlist__for_each_entry(rep->session->evlist, pos)
-		perf_evsel__output_resort(pos, &prog);
+	evlist__for_each_entry(rep->session->evlist, pos) {
+		perf_evsel__output_resort_cb(pos, &prog,
+					     hists__resort_cb, rep);
+	}
 
 	ui_progress__finish();
 }

tools/perf/util/sort.c

@@ -429,8 +429,6 @@ static int hist_entry__sym_ipc_snprintf(struct hist_entry *he, char *bf,
 {
 
 	struct symbol *sym = he->ms.sym;
-	struct map *map = he->ms.map;
-	struct perf_evsel *evsel = hists_to_evsel(he->hists);
 	struct annotation *notes;
 	double ipc = 0.0, coverage = 0.0;
 	char tmp[64];
@@ -438,11 +436,6 @@ static int hist_entry__sym_ipc_snprintf(struct hist_entry *he, char *bf,
 	if (!sym)
 		return repsep_snprintf(bf, size, "%-*s", width, "-");
 
-	if (!sym->annotate2 && symbol__annotate2(sym, map, evsel,
-		&annotation__default_options, NULL) < 0) {
-		return 0;
-	}
-
 	notes = symbol__annotation(sym);
 
 	if (notes->hit_cycles)