diff options
| author | Adrian Hunter | 2021-01-21 16:04:18 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2021-02-18 16:11:19 -0300 |
| commit | d58b3f7e701408ac41b0a8342f26bbf9a5597f05 (patch) | |
| tree | d0f47742e433d24c0ad553ca22f2a97189dfef2c /tools/perf/util/auxtrace.c | |
| parent | c5c97cadd7ed13381cb6b4bef5c841a66938d350 (diff) | |
perf auxtrace: Automatically group aux-output events
aux-output events need to have an AUX area event as the group leader.
However, grouping events does not allow the AUX area event to be given
an address filter because the --filter option must come after the event,
which conflicts with the grouping syntax.
To allow filtering in that case, automatically create a group since that
is the requirement anyway.
Example: (requires Intel Tremont)
perf record -c 500 -e 'intel_pt//u' --filter 'filter main @ /bin/ls' -e 'cycles/aux-output/pp' ls
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20210121140418.14705-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/auxtrace.c')
| -rw-r--r-- | tools/perf/util/auxtrace.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index a60878498139..953f4afacd3b 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -788,6 +788,21 @@ no_opt: return auxtrace_validate_aux_sample_size(evlist, opts); } +void auxtrace_regroup_aux_output(struct evlist *evlist) +{ + struct evsel *evsel, *aux_evsel = NULL; + struct evsel_config_term *term; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_aux_event(evsel)) + aux_evsel = evsel; + term = evsel__get_config_term(evsel, AUX_OUTPUT); + /* If possible, group with the AUX event */ + if (term && aux_evsel) + evlist__regroup(evlist, aux_evsel, evsel); + } +} + struct auxtrace_record *__weak auxtrace_record__init(struct evlist *evlist __maybe_unused, int *err) { |