diff --git a/inc/external/acl/acl_rt.h b/inc/external/acl/acl_rt.h
index 9ca51f8b2e89cb668c0167d05eb5e9a8ec447fd7..ff8c6f547b3bf36324858d3a84068f35e630061a 100755
--- a/inc/external/acl/acl_rt.h
+++ b/inc/external/acl/acl_rt.h
@@ -3573,42 +3573,6 @@ typedef enum aclrtProcessState {
     ACL_RT_PROCESS_STATE_LOCKED,
 } aclrtProcessState;
 
-/**
- * @ingroup AscendCL
- * @brief lock the NPU process which will block further aclrt api calls
- *
- * @retval ACL_SUCCESS The function is successfully executed.
- * @retval OtherValues success.
- */
-ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessLock();
-
-/**
- * @ingroup AscendCL
- * @brief unlock the NPU process and allow it to continue making aclrt api calls
- *
- * @retval ACL_SUCCESS The function is successfully executed.
- * @retval OtherValues success.
- */
-ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessUnlock();
-
-/**
- * @ingroup AscendCL
- * @brief backup the NPU process
- *
- * @retval ACL_SUCCESS The function is successfully executed.
- * @retval OtherValues success.
- */
-ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessBackup();
-
-/**
- * @ingroup AscendCL
- * @brief restore the NPU process from the last backup point
- *
- * @retval ACL_SUCCESS The function is successfully executed.
- * @retval
-*/
-ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessRestore();
-
 /**
  * @ingroup AscendCL
  * @brief Enqueues a host function call in s strea,
diff --git a/runtime/acl_rt.cpp b/runtime/acl_rt.cpp
index d2babe0f88f938ccb24a76ccd24454c0567e35d1..7fd1780b730fc263f391f30ecb2175e22fac6f7a 100755
--- a/runtime/acl_rt.cpp
+++ b/runtime/acl_rt.cpp
@@ -1554,25 +1554,25 @@ aclError aclrtRepairError(int32_t deviceId, const aclrtErrorInfo *errorInfo)
     ACL_PROFILING_REG(acl::AclProfType::AclrtRepairError); 
     return aclrtRepairErrorImpl(deviceId, errorInfo); 
 }
-aclError aclrtSnapShotProcessLock()
+extern "C" ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessLock()
 {
     ACL_PROFILING_REG(acl::AclProfType::AclrtSnapShotProcessLock);
     return aclrtSnapShotProcessLockImpl();
 }
 
-aclError aclrtSnapShotProcessUnlock()
+extern "C" ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessUnlock()
 {
     ACL_PROFILING_REG(acl::AclProfType::AclrtSnapShotProcessUnlock);
     return aclrtSnapShotProcessUnlockImpl();
 }
 
-aclError aclrtSnapShotProcessBackup()
+extern "C" ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessBackup()
 {
     ACL_PROFILING_REG(acl::AclProfType::AclrtSnapShotProcessBackup);
     return aclrtSnapShotProcessBackupImpl();
 }
 
-aclError aclrtSnapShotProcessRestore()
+extern "C" ACL_FUNC_VISIBILITY aclError aclrtSnapShotProcessRestore()
 {
     ACL_PROFILING_REG(acl::AclProfType::AclrtSnapShotProcessRestore);
     return aclrtSnapShotProcessRestoreImpl();
diff --git a/tests/ut/acl/testcase/acl_runtime_unittest.cpp b/tests/ut/acl/testcase/acl_runtime_unittest.cpp
index de94d8794dc4799685466fbda3d894eb0f02b5ea..ae1b018d441cc7c39bf0a8c628325a135bc5fc54 100755
--- a/tests/ut/acl/testcase/acl_runtime_unittest.cpp
+++ b/tests/ut/acl/testcase/acl_runtime_unittest.cpp
@@ -31,6 +31,13 @@ using namespace testing;
 using namespace std;
 using namespace acl;
 
+namespace acl {
+extern "C" aclError aclrtSnapShotProcessLock();
+extern "C" aclError aclrtSnapShotProcessUnlock();
+extern "C" aclError aclrtSnapShotProcessBackup();
+extern "C" aclError aclrtSnapShotProcessRestore();
+}
+
 class UTEST_ACL_Runtime : public testing::Test
 {
 protected: