diff --git a/adapter/uhdf2/ipc/src/hdf_remote_adapter.cpp b/adapter/uhdf2/ipc/src/hdf_remote_adapter.cpp
index a29a9f290ac2eb2bb2214576596fbfd0705cd607..4b7afe7d1e3a610431b412f7bfe5c218d9490981 100644
--- a/adapter/uhdf2/ipc/src/hdf_remote_adapter.cpp
+++ b/adapter/uhdf2/ipc/src/hdf_remote_adapter.cpp
@@ -37,6 +37,7 @@ HdfRemoteServiceStub::HdfRemoteServiceStub(struct HdfRemoteService *service)
 {
 }
 
+// LCOV_EXCL_START
 int HdfRemoteServiceStub::OnRemoteRequest(uint32_t code,
     OHOS::MessageParcel &data, OHOS::MessageParcel &reply, OHOS::MessageOption &option)
 {
@@ -65,6 +66,7 @@ int HdfRemoteServiceStub::OnRemoteRequest(uint32_t code,
     HdfSbufRecycle(replySbuf);
     return ret;
 }
+// LCOV_EXCL_STOP
 
 void HdfRemoteServiceStub::HdfRemoteStubClearHolder()
 {
@@ -191,6 +193,7 @@ void HdfRemoteAdapterAddDeathRecipient(
     remote->AddDeathRecipient(holder->deathRecipient_);
 }
 
+// LCOV_EXCL_START
 void HdfRemoteAdapterRemoveDeathRecipient(
     struct HdfRemoteService *service, const struct HdfDeathRecipient *recipient)
 {
@@ -208,6 +211,7 @@ void HdfRemoteAdapterRemoveDeathRecipient(
         holder->deathRecipient_ = nullptr;
     }
 }
+// LCOV_EXCL_STOP
 
 struct HdfRemoteService *HdfRemoteAdapterBind(OHOS::sptr<OHOS::IRemoteObject> binder)
 {
diff --git a/adapter/uhdf2/ipc/src/hdf_sbuf_impl_hipc.cpp b/adapter/uhdf2/ipc/src/hdf_sbuf_impl_hipc.cpp
index b926a7e44de45f3a74e2ffb720fa6c481d4e2ae0..c8966f6b2192316f51228574583736e3692a7093 100644
--- a/adapter/uhdf2/ipc/src/hdf_sbuf_impl_hipc.cpp
+++ b/adapter/uhdf2/ipc/src/hdf_sbuf_impl_hipc.cpp
@@ -58,6 +58,7 @@ static bool SbufMParcelImplWriteBuffer(struct HdfSBufImpl *sbuf, const uint8_t *
     return parcel->WriteUnpadBuffer(static_cast<const void *>(data), writeSize);
 }
 
+// LCOV_EXCL_START
 static bool SbufMParcelImplWriteUnpadBuffer(struct HdfSBufImpl *sbuf, const uint8_t *data, uint32_t writeSize)
 {
     return MParcelCast(sbuf)->WriteUnpadBuffer(static_cast<const void *>(data), writeSize);
@@ -67,12 +68,14 @@ static bool SbufMParcelImplWriteUint64(struct HdfSBufImpl *sbuf, uint64_t value)
 {
     return MParcelCast(sbuf)->WriteUint64(value);
 }
+// LCOV_EXCL_STOP
 
 static bool SbufMParcelImplWriteUint32(struct HdfSBufImpl *sbuf, uint32_t value)
 {
     return MParcelCast(sbuf)->WriteUint32(value);
 }
 
+// LCOV_EXCL_START
 static bool SbufMParcelImplWriteUint16(struct HdfSBufImpl *sbuf, uint16_t value)
 {
     return MParcelCast(sbuf)->WriteUint16(value);
@@ -87,6 +90,7 @@ static bool SbufMParcelImplWriteInt64(struct HdfSBufImpl *sbuf, int64_t value)
 {
     return MParcelCast(sbuf)->WriteInt64(value);
 }
+// LCOV_EXCL_STOP
 
 static bool SbufMParcelImplWriteInt32(struct HdfSBufImpl *sbuf, int32_t value)
 {
@@ -108,6 +112,7 @@ static bool SbufMParcelImplWriteString(struct HdfSBufImpl *sbuf, const char *val
     return MParcelCast(sbuf)->WriteCString(value);
 }
 
+// LCOV_EXCL_START
 static bool SbufMParcelImplWriteString16(struct HdfSBufImpl *sbuf, const char16_t *value, uint32_t size)
 {
     return MParcelCast(sbuf)->WriteString16WithLength(value, size);
@@ -181,6 +186,7 @@ static bool SbufMParcelImplReadUint64(struct HdfSBufImpl *sbuf, uint64_t *value)
     *value = v;
     return ret;
 }
+// LCOV_EXCL_STOP
 
 static bool SbufMParcelImplReadUint32(struct HdfSBufImpl *sbuf, uint32_t *value)
 {
@@ -264,6 +270,7 @@ static const char *SbufMParcelImplReadString(struct HdfSBufImpl *sbuf)
     return MParcelCast(sbuf)->ReadCString();
 }
 
+// LCOV_EXCL_START
 static const char16_t *SbufMParcelImplReadString16(struct HdfSBufImpl *sbuf)
 {
     SBufMParcelImpl *sbufImpl = reinterpret_cast<SBufMParcelImpl *>(sbuf);
@@ -280,6 +287,7 @@ static int32_t SbufMParcelImplWriteRemoteService(struct HdfSBufImpl *sbuf, const
     const struct HdfRemoteServiceHolder *holder = reinterpret_cast<const struct HdfRemoteServiceHolder *>(service);
     return parcel->WriteRemoteObject(holder->remote_) ? HDF_SUCCESS : HDF_FAILURE;
 }
+// LCOV_EXCL_STOP
 
 static struct HdfRemoteService *SbufMParcelImplReadRemoteService(struct HdfSBufImpl *sbuf)
 {
diff --git a/adapter/uhdf2/manager/src/devmgr_service_stub.c b/adapter/uhdf2/manager/src/devmgr_service_stub.c
index dc826d13fc68d11f624bfb18291964ab432969a9..8c115c4eb917e39045f87e49c114f30793d30442 100644
--- a/adapter/uhdf2/manager/src/devmgr_service_stub.c
+++ b/adapter/uhdf2/manager/src/devmgr_service_stub.c
@@ -129,6 +129,7 @@ static int32_t DevmgrServiceStubDispatchListAllDevice(struct IDevmgrService *dev
     return devmgrSvc->ListAllDevice(devmgrSvc, reply);
 }
 
+// LCOV_EXCL_START
 static int32_t DevmgrServiceStubListAllHost(struct IDevmgrService *devmgrSvc, struct HdfSBuf *reply)
 {
     if (reply == NULL) {
@@ -148,6 +149,7 @@ static int32_t DevmgrServiceStubListAllHost(struct IDevmgrService *devmgrSvc, st
     }
     return HDF_SUCCESS;
 }
+// LCOV_EXCL_STOP
 
 int32_t DevmgrServiceStubDispatch(struct HdfRemoteService *stub, int code, struct HdfSBuf *data, struct HdfSBuf *reply)
 {
@@ -198,6 +200,7 @@ int32_t DevmgrServiceStubDispatch(struct HdfRemoteService *stub, int code, struc
     return HDF_SUCCESS;
 }
 
+// LCOV_EXCL_START
 static void RemoveModule(const char *module)
 {
     uint32_t flags = O_NONBLOCK | O_EXCL;
@@ -270,6 +273,7 @@ static int32_t ModuleSysEventHandle(
 
     return ret;
 }
+// LCOV_EXCL_STOP
 
 static int32_t DriverModuleLoadHelperInit(void)
 {
diff --git a/framework/support/posix/src/osal_sem.c b/framework/support/posix/src/osal_sem.c
index 3514616a929bd1d24bc1db903133b474049ee0b0..513e6326d6b19a28ef59b619c2353e25545317a7 100644
--- a/framework/support/posix/src/osal_sem.c
+++ b/framework/support/posix/src/osal_sem.c
@@ -45,6 +45,7 @@ int32_t OsalSemInit(struct OsalSem *sem, uint32_t value)
     return HDF_SUCCESS;
 }
 
+// LCOV_EXCL_START
 int32_t OsalSemWait(struct OsalSem *sem, uint32_t ms)
 {
     if (sem == NULL || sem->realSemaphore == NULL) {
@@ -113,4 +114,4 @@ int32_t OsalSemDestroy(struct OsalSem *sem)
 
     return HDF_SUCCESS;
 }
-
+// LCOV_EXCL_STOP
diff --git a/framework/support/posix/src/osal_spinlock.c b/framework/support/posix/src/osal_spinlock.c
index 6980d231fd404e79a29aa526366a3b040c1120b4..239577b344068b81175218abade47a4182b7f7d1 100644
--- a/framework/support/posix/src/osal_spinlock.c
+++ b/framework/support/posix/src/osal_spinlock.c
@@ -13,6 +13,7 @@
 
 #define HDF_LOG_TAG osal_spinlock
 
+// LCOV_EXCL_START
 int32_t OsalSpinInit(OsalSpinlock *spinlock)
 {
     pthread_spinlock_t *spinTmp = NULL;
@@ -98,4 +99,4 @@ int32_t OsalSpinUnlock(OsalSpinlock *spinlock)
 
     return HDF_SUCCESS;
 }
-
+// LCOV_EXCL_STOP
diff --git a/framework/support/posix/src/osal_time.c b/framework/support/posix/src/osal_time.c
index 49bf71606fe56a7db7d8eccf8d955b7079b83cb6..635d2ba27634b74fbe9ea14add5fdb10eaa2cb98 100644
--- a/framework/support/posix/src/osal_time.c
+++ b/framework/support/posix/src/osal_time.c
@@ -16,6 +16,7 @@
 
 #define HDF_LOG_TAG osal_time
 
+// LCOV_EXCL_START
 int32_t OsalGetTime(OsalTimespec *time)
 {
     struct timespec ts;
@@ -67,6 +68,7 @@ void OsalSleep(uint32_t sec)
 {
     sleep(sec);
 }
+// LCOV_EXCL_STOP
 
 void OsalMSleep(uint32_t ms)
 {
diff --git a/framework/utils/src/hcs_parser/hcs_blob_if.c b/framework/utils/src/hcs_parser/hcs_blob_if.c
index e5c64a98019a6a24de663e9c02af49a0c12673e1..e645c3265eb567f8d6a1303db76009cece0e45d9 100644
--- a/framework/utils/src/hcs_parser/hcs_blob_if.c
+++ b/framework/utils/src/hcs_parser/hcs_blob_if.c
@@ -155,6 +155,7 @@ bool HcsSwapToUint32(uint32_t *value, const char *realValue, uint32_t type)
     return false;
 }
 
+// LCOV_EXCL_START
 bool HcsSwapToUint64(uint64_t *value, const char *realValue, uint32_t type)
 {
     uint32_t data;
@@ -169,6 +170,7 @@ bool HcsSwapToUint64(uint64_t *value, const char *realValue, uint32_t type)
     HDF_LOGE("%{public}s failed, type: %{public}u", __func__, type);
     return false;
 }
+// LCOV_EXCL_STOP
 
 static bool CheckHcsBlobLength(uint32_t length, struct HbcHeader *header)
 {