summaryrefslogtreecommitdiff
path: root/tools/perf/util/evsel.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util/evsel.c')
-rw-r--r--tools/perf/util/evsel.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3612183e2cc5..0ce9febf1ba0 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -27,6 +27,7 @@
static struct {
bool sample_id_all;
bool exclude_guest;
+ bool mmap2;
} perf_missing_features;
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
@@ -676,8 +677,9 @@ void perf_evsel__config(struct perf_evsel *evsel,
if (opts->sample_weight)
attr->sample_type |= PERF_SAMPLE_WEIGHT;
- attr->mmap = track;
- attr->comm = track;
+ attr->mmap = track;
+ attr->mmap2 = track && !perf_missing_features.mmap2;
+ attr->comm = track;
/*
* XXX see the function comment above
@@ -1016,6 +1018,8 @@ static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
}
fallback_missing_features:
+ if (perf_missing_features.mmap2)
+ evsel->attr.mmap2 = 0;
if (perf_missing_features.exclude_guest)
evsel->attr.exclude_guest = evsel->attr.exclude_host = 0;
retry_sample_id:
@@ -1080,8 +1084,11 @@ try_fallback:
if (err != -EINVAL || cpu > 0 || thread > 0)
goto out_close;
- if (!perf_missing_features.exclude_guest &&
- (evsel->attr.exclude_guest || evsel->attr.exclude_host)) {
+ if (!perf_missing_features.mmap2 && evsel->attr.mmap2) {
+ perf_missing_features.mmap2 = true;
+ goto fallback_missing_features;
+ } else if (!perf_missing_features.exclude_guest &&
+ (evsel->attr.exclude_guest || evsel->attr.exclude_host)) {
perf_missing_features.exclude_guest = true;
goto fallback_missing_features;
} else if (!perf_missing_features.sample_id_all) {
@@ -1925,6 +1932,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
if_print(exclude_hv);
if_print(exclude_idle);
if_print(mmap);
+ if_print(mmap2);
if_print(comm);
if_print(freq);
if_print(inherit_stat);