From e3c478041eee5300ab75ae7a358a4e34609ca4a5 Mon Sep 17 00:00:00 2001
From: doublefree <yupan14@huawei.com>
Date: Wed, 6 Aug 2025 10:32:45 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E8=AE=A1=E6=95=B0?=
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---
 pmu/perf_counter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pmu/perf_counter.cpp b/pmu/perf_counter.cpp
index fda8d08..b578493 100644
--- a/pmu/perf_counter.cpp
+++ b/pmu/perf_counter.cpp
@@ -115,7 +115,7 @@ static int PerfMmapReadSelf(const std::shared_ptr<PerfMmap> &countMmap, struct R
         cnt = ReadOnce(&pc->offset);
         if (pc->cap_user_rdpmc && idx) {
             // read the reg mapped by the countMmap->base->idx
-            uint64_t eventCount = ReadPerfCounter(idx - 1);
+            int64_t eventCount = ReadPerfCounter(idx - 1);
             uint16_t width = ReadOnce(&pc->pmc_width);
             eventCount <<= 64 - width;
             eventCount >>= 64 - width;
-- 
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