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-rw-r--r--tools/perf/util/sort.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 401e220..1ee8f1e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -151,11 +151,17 @@ sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
{
u64 ip_l, ip_r;
+ if (!left->ms.sym && !right->ms.sym)
+ return right->level - left->level;
+
+ if (!left->ms.sym || !right->ms.sym)
+ return cmp_null(left->ms.sym, right->ms.sym);
+
if (left->ms.sym == right->ms.sym)
return 0;
- ip_l = left->ms.sym ? left->ms.sym->start : left->ip;
- ip_r = right->ms.sym ? right->ms.sym->start : right->ip;
+ ip_l = left->ms.sym->start;
+ ip_r = right->ms.sym->start;
return (int64_t)(ip_r - ip_l);
}

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