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 <[email protected]> Cc: John Garry <[email protected]> Cc: Will Deacon <[email protected]> Cc: Mathieu Poirier <[email protected]> Cc: Leo Yan <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Kemeng Shi <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Jin Yao <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Suzuki K Poulose <[email protected]> Cc: Al Grant <[email protected]> Cc: James Clark <[email protected]> Cc: Wilco Dijkstra <[email protected]> --- 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
