On arm64, enable dwarf_callchain_users which will be needed
to do a dwarf unwind in order to get the caller of the leaf frame.
Signed-off-by: Alexandre Truong <alexandre.tru...@arm.com>
---
tools/perf/builtin-report.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 2a845d6cac09..93661a3eaeb1 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -405,6 +405,10 @@ static int report__setup_sample_type(struct report *rep)
callchain_param_setup(sample_type);
+ if (callchain_param.record_mode == CALLCHAIN_FP &&
+ strncmp(rep->session->header.env.arch, "aarch64", 7) ==
0)
+ dwarf_callchain_users = true;
+
if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
ui__warning("Can't find LBR callchain. Switch off
--stitch-lbr.\n"
"Please apply --call-graph lbr when recording.\n");
--
2.23.0
