| Message ID | 20240823113306.2310957-8-leo.yan@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | perf auxtrace: Support multiple AUX events | expand |
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 2acf63efab1d..864ed20794ab 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -690,9 +690,13 @@ int auxtrace_record__read_finish(struct auxtrace_record *itr, int idx) cpu_map_idx = evlist__find_cpu_map_idx(itr->evlist, evsel, idx); - /* No map is found in per CPU mmap */ + /* + * No map is found in per CPU mmap. Multiple AUX events + * might be opened in a session, continue to check if + * the next AUX event can cover the mmaped buffer 'idx'. + */ if (cpu_map_idx == -ENOENT) - return cpu_map_idx; + continue; if (evsel->disabled) return 0;
When finished to read AUX trace data from mmaped buffer, based on the AUX buffer index the core layer needs to search the corresponding PMU event and re-enable it to continue tracing. However, current code only searches the first AUX event. It misses to search other enabled AUX events, thus, it returns failure if the buffer index does not belong to the first AUX event. This patch changes to continue searching every enabled AUX events for covering the mmaped buffer indexes. Signed-off-by: Leo Yan <leo.yan@arm.com> --- tools/perf/util/auxtrace.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)