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-rw-r--r--tools/perf/util/dsos.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/tools/perf/util/dsos.c b/tools/perf/util/dsos.c
index ab3d0c01dd63..a69a9c661200 100644
--- a/tools/perf/util/dsos.c
+++ b/tools/perf/util/dsos.c
@@ -203,11 +203,27 @@ int __dsos__add(struct dsos *dsos, struct dso *dso)
dsos->dsos = temp;
dsos->allocated = to_allocate;
}
- dsos->dsos[dsos->cnt++] = dso__get(dso);
- if (dsos->cnt >= 2 && dsos->sorted) {
- dsos->sorted = dsos__cmp_long_name_id_short_name(&dsos->dsos[dsos->cnt - 2],
- &dsos->dsos[dsos->cnt - 1])
- <= 0;
+ if (!dsos->sorted) {
+ dsos->dsos[dsos->cnt++] = dso__get(dso);
+ } else {
+ int low = 0, high = dsos->cnt - 1;
+ int insert = dsos->cnt; /* Default to inserting at the end. */
+
+ while (low <= high) {
+ int mid = low + (high - low) / 2;
+ int cmp = dsos__cmp_long_name_id_short_name(&dsos->dsos[mid], &dso);
+
+ if (cmp < 0) {
+ low = mid + 1;
+ } else {
+ high = mid - 1;
+ insert = mid;
+ }
+ }
+ memmove(&dsos->dsos[insert + 1], &dsos->dsos[insert],
+ (dsos->cnt - insert) * sizeof(struct dso *));
+ dsos->cnt++;
+ dsos->dsos[insert] = dso__get(dso);
}
dso__set_dsos(dso, dsos);
return 0;