aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/util/top.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util/top.c')
-rw-r--r--tools/perf/util/top.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index 4f869da4e9c7..75cfe4d45119 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -115,9 +115,23 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
if (!top->display_weighted) {
ret += SNPRINTF(bf + ret, size - ret, "%s",
event_name(top->sym_evsel));
- } else list_for_each_entry(counter, &top->evlist->entries, node) {
- ret += SNPRINTF(bf + ret, size - ret, "%s%s",
- counter->idx ? "/" : "", event_name(counter));
+ } else {
+ /*
+ * Don't let events eat all the space. Leaving 30 bytes
+ * for the rest should be enough.
+ */
+ size_t last_pos = size - 30;
+
+ list_for_each_entry(counter, &top->evlist->entries, node) {
+ ret += SNPRINTF(bf + ret, size - ret, "%s%s",
+ counter->idx ? "/" : "",
+ event_name(counter));
+ if (ret > last_pos) {
+ sprintf(bf + last_pos - 3, "..");
+ ret = last_pos - 1;
+ break;
+ }
+ }
}
ret += SNPRINTF(bf + ret, size - ret, "], ");

Privacy Policy