diff --git a/device/plugins/native_hook/src/hook_client.cpp b/device/plugins/native_hook/src/hook_client.cpp
index c3b2c9916a6a2ed00596974cefabd40f7c17b61f..d6f8b5bca93840db3d7bd293e34d3d5aef8ced10 100644
--- a/device/plugins/native_hook/src/hook_client.cpp
+++ b/device/plugins/native_hook/src/hook_client.cpp
@@ -84,10 +84,7 @@ constexpr int STATUS_LINE_SIZE = 512;
 constexpr int PID_NAMESPACE_ID = 1; // 1: pid is 1 after pid namespace used
 constexpr int FD_PATH_LENGTH = 64;
 constexpr int MIN_SAMPLER_INTERVAL = 1;
-constexpr int FIRST_HASH = 16;
-constexpr int SECOND_HASH = 13;
 constexpr int THRESHOLD = 256;
-constexpr int DIVIDE_VAL = 64;
 constexpr uintptr_t MAX_UNWIND_ADDR_RANGE = 16 * 1024;
 //5: fp mode is used, response_library_mode maximum stack depth
 #if defined(__aarch64__)
@@ -98,9 +95,11 @@ std::shared_ptr<AddressHandler> g_midPartHandler = nullptr;
 #endif
 std::shared_ptr<AddressHandler> g_addrHandler = nullptr;
 static bool g_isPidChanged = false;
-static struct mallinfo2 g_miStart = {0};
 std::vector<std::pair<uint64_t, uint64_t>> g_filterStaLibRange;
 std::atomic<Range> targetedRange;
+std::shared_ptr<WholeAddrHandler> g_wholeAddrHandler = nullptr;
+std::shared_ptr<MidAddrHandler> g_midPartHandler = nullptr;
+std::shared_ptr<LowAddrHandler> g_addrHandler = nullptr;
 constexpr int MAX_BITPOOL_SIZE = 1000 * 1024;
 
 const MallocDispatchType* GetDispatch()
diff --git a/device/plugins/native_hook/src/hook_socket_client.cpp b/device/plugins/native_hook/src/hook_socket_client.cpp
index bbc7c3e032d1d308f8d4e30026f4f6204f63353b..23d718b5fa290cab9876f88426bebcd934a1f5b4 100644
--- a/device/plugins/native_hook/src/hook_socket_client.cpp
+++ b/device/plugins/native_hook/src/hook_socket_client.cpp
@@ -30,7 +30,6 @@
 #include <iostream>
 
 namespace {
-constexpr int FLUSH_FLAG = 20;
 constexpr int ONLY_NMD_TYPE = 2;
 constexpr int SIMP_NMD = 3;
 std::atomic<bool> g_disableHook = true;
diff --git a/device/plugins/native_hook/src/runtime_stack_range.cpp b/device/plugins/native_hook/src/runtime_stack_range.cpp
index 95b2b62d378158a3f34f9ceee9575c32ed053291..337777d24192b6c7cb2a764fc93037851c480e8d 100644
--- a/device/plugins/native_hook/src/runtime_stack_range.cpp
+++ b/device/plugins/native_hook/src/runtime_stack_range.cpp
@@ -146,11 +146,6 @@ bool ParseTargetedMaps(std::atomic<Range>& targetedRange, std::string targetedLi
         return ret;
     }
     char mapInfo[256] = {0}; // 256: map info size
-    int pos = 0;
-    uint64_t begin = 0;
-    uint64_t end = 0;
-    uint64_t offset = 0;
-    char perms[5] = {0}; // 5:rwxp
     while (fgets(mapInfo, sizeof(mapInfo), fp) != nullptr) {
         if (strstr(mapInfo, targetedLib.c_str()) != nullptr) {
             std::string lineStr = mapInfo;