diff options
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 0d3b7399625..df77a44fe27 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -676,6 +676,32 @@ u64 perf_evlist__sample_type(struct perf_evlist *evlist) return first->attr.sample_type; } +bool perf_evlist__valid_read_format(struct perf_evlist *evlist) +{ + struct perf_evsel *first = perf_evlist__first(evlist), *pos = first; + u64 read_format = first->attr.read_format; + u64 sample_type = first->attr.sample_type; + + list_for_each_entry_continue(pos, &evlist->entries, node) { + if (read_format != pos->attr.read_format) + return false; + } + + /* PERF_SAMPLE_READ imples PERF_FORMAT_ID. */ + if ((sample_type & PERF_SAMPLE_READ) && + !(read_format & PERF_FORMAT_ID)) { + return false; + } + + return true; +} + +u64 perf_evlist__read_format(struct perf_evlist *evlist) +{ + struct perf_evsel *first = perf_evlist__first(evlist); + return first->attr.read_format; +} + u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist) { struct perf_evsel *first = perf_evlist__first(evlist); |