[PATCH 1/4] perf annotate: Make sure to call symbol__annotate2() in TUI

From: Namhyung Kim
Date: Fri Apr 05 2024 - 17:18:15 EST


The symbol__annotate2() initializes some data structures needed by TUI.
It has a logic to prevent calling it multiple times by checking if it
has the annotated source. But data type profiling uses a different
code (symbol__annotate) to allocate the annotated lines in advance.
So TUI missed to call symbol__annotate2() when it shows the annotation
browser.

Make symbol__annotate() reentrant and handle that situation properly.
This fixes a crash in the annotation browser started by perf report in
TUI like below.

$ perf report -s type,sym --tui
# and press 'a' key and then move down

Fixes: 81e57deec325 ("perf report: Support data type profiling")
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/ui/browsers/annotate.c | 2 +-
tools/perf/util/annotate.c | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index ec5e21932876..4790c735599b 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -970,7 +970,7 @@ int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
if (dso->annotate_warned)
return -1;

- if (not_annotated) {
+ if (not_annotated || !sym->annotate2) {
err = symbol__annotate2(ms, evsel, &browser.arch);
if (err) {
char msg[BUFSIZ];
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 35235147b111..ded9ad86df00 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -879,6 +879,9 @@ int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
if (parch)
*parch = arch;

+ if (!list_empty(&notes->src->source))
+ return 0;
+
args.arch = arch;
args.ms = *ms;
if (annotate_opts.full_addr)
--
2.44.0.478.gd926399ef9-goog