diff --git a/adapter/cloud_adapter_example/BUILD.gn b/adapter/cloud_adapter_example/BUILD.gn
index 4d2104cd6da9f529717ef2e63ce4f73c01af3a00..d9216bdb63d80a58d3496002d67c38595484c600 100644
--- a/adapter/cloud_adapter_example/BUILD.gn
+++ b/adapter/cloud_adapter_example/BUILD.gn
@@ -20,6 +20,12 @@ config("public_config") {
 }
 
 ohos_shared_library("cloud_adapter") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "${distributedfile_path}/adapter/cloud_adapter_example/src/dk_asset_read_session.cpp",
     "${distributedfile_path}/adapter/cloud_adapter_example/src/dk_assets_downloader.cpp",
diff --git a/interfaces/inner_api/native/cloud_daemon_kit_inner/BUILD.gn b/interfaces/inner_api/native/cloud_daemon_kit_inner/BUILD.gn
index 6782e26042e9d1f81058bac48c5166899ad878f5..02490350df66e23b6b961ef2655e275cf4b54c4c 100644
--- a/interfaces/inner_api/native/cloud_daemon_kit_inner/BUILD.gn
+++ b/interfaces/inner_api/native/cloud_daemon_kit_inner/BUILD.gn
@@ -26,6 +26,12 @@ config("private_config") {
 }
 
 ohos_shared_library("cloud_daemon_kit_inner") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "${distributedfile_path}/frameworks/native/cloud_daemon_kit_inner/src/cloud_daemon_manager.cpp",
     "${distributedfile_path}/frameworks/native/cloud_daemon_kit_inner/src/cloud_daemon_manager_impl.cpp",
diff --git a/interfaces/inner_api/native/cloudsync_kit_inner/BUILD.gn b/interfaces/inner_api/native/cloudsync_kit_inner/BUILD.gn
index 7b41bce20eeded2c48e4e8cecdf931883dc494a8..81a404a348ee9c9ccb3ae709c1da60453f66d0b4 100644
--- a/interfaces/inner_api/native/cloudsync_kit_inner/BUILD.gn
+++ b/interfaces/inner_api/native/cloudsync_kit_inner/BUILD.gn
@@ -29,6 +29,12 @@ config("private_config") {
 }
 
 ohos_shared_library("cloudsync_kit_inner") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "${distributedfile_path}/frameworks/native/cloudsync_kit_inner/src/cloud_download_callback_client.cpp",
     "${distributedfile_path}/frameworks/native/cloudsync_kit_inner/src/cloud_download_callback_stub.cpp",
@@ -72,6 +78,12 @@ ohos_shared_library("cloudsync_kit_inner") {
 }
 
 ohos_shared_library("cloudsync_asset_kit_inner") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "${distributedfile_path}/frameworks/native/cloudsync_kit_inner/src/cloud_download_uri_manager.cpp",
     "${distributedfile_path}/frameworks/native/cloudsync_kit_inner/src/cloud_sync_asset_manager.cpp",
diff --git a/interfaces/kits/js/cloudfilesync/BUILD.gn b/interfaces/kits/js/cloudfilesync/BUILD.gn
index 0b7967e53f8bccb5386c58d7ef54df1308323417..41fc3e977167d9d9ae26ba2a9e6b9631d3ffcc67 100644
--- a/interfaces/kits/js/cloudfilesync/BUILD.gn
+++ b/interfaces/kits/js/cloudfilesync/BUILD.gn
@@ -15,6 +15,12 @@ import("//build/ohos.gni")
 import("//foundation/filemanagement/dfs_service/distributedfile.gni")
 
 ohos_shared_library("cloudsync") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "cloud_file_cache_napi.cpp",
     "cloud_file_download_napi.cpp",
diff --git a/interfaces/kits/js/cloudsyncmanager/BUILD.gn b/interfaces/kits/js/cloudsyncmanager/BUILD.gn
index d48e4b2e4e8d6338f6d7bc3334e8f7e3f4f10546..c3931841c29ca652c16f9634ba11c538ed8c8b61 100644
--- a/interfaces/kits/js/cloudsyncmanager/BUILD.gn
+++ b/interfaces/kits/js/cloudsyncmanager/BUILD.gn
@@ -15,6 +15,12 @@ import("//build/ohos.gni")
 import("//foundation/filemanagement/dfs_service/distributedfile.gni")
 
 ohos_shared_library("cloudsyncmanager") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "cloud_sync_manager_n_exporter.cpp",
     "cloud_sync_manager_napi.cpp",
diff --git a/services/cloudfiledaemon/BUILD.gn b/services/cloudfiledaemon/BUILD.gn
index d9acb770f7a74f1fdaf3df0826ed5c58fbc6dba7..c6967956ad5a610632200bb709dd46ba83973fa7 100644
--- a/services/cloudfiledaemon/BUILD.gn
+++ b/services/cloudfiledaemon/BUILD.gn
@@ -15,6 +15,12 @@ import("//build/ohos.gni")
 import("//foundation/filemanagement/dfs_service/distributedfile.gni")
 
 ohos_shared_library("cloudfiledaemon") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   cloud_disk = [
     "src/cloud_disk/database_manager.cpp",
     "src/cloud_disk/file_operations_base.cpp",
diff --git a/services/cloudsyncservice/BUILD.gn b/services/cloudsyncservice/BUILD.gn
index fe0ae5f3b8a6998bd5c55fdf64a7b083b2a433aa..72f4e678f8d010cacaeecc85d7200d26c0c123b1 100644
--- a/services/cloudsyncservice/BUILD.gn
+++ b/services/cloudsyncservice/BUILD.gn
@@ -26,6 +26,12 @@ config("optimize-size") {
   ]
 }
 ohos_shared_library("cloudsync_sa") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   include_dirs = [
     "include",
     "include/data_sync",
@@ -173,6 +179,12 @@ ohos_shared_library("cloudsync_sa") {
 }
 
 ohos_static_library("cloudsync_sa_static") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   include_dirs = [
     "include",
     "include/data_sync",
diff --git a/services/distributedfiledaemon/BUILD.gn b/services/distributedfiledaemon/BUILD.gn
index f8673083966a1f4a64f5e3b0bb4f045d314d1ede..25b8ce5ea039e8fb341cfa5124a54e8e97c25e3e 100644
--- a/services/distributedfiledaemon/BUILD.gn
+++ b/services/distributedfiledaemon/BUILD.gn
@@ -14,6 +14,12 @@ import("//build/ohos.gni")
 import("//foundation/filemanagement/dfs_service/distributedfile.gni")
 
 ohos_shared_library("libdistributedfiledaemon") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   include_dirs = [
     "include",
     "//third_party/json/include",
@@ -76,6 +82,12 @@ config("private_config") {
 }
 
 ohos_shared_library("distributed_file_daemon_kit_inner") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "${distributedfile_path}/frameworks/native/distributed_file_inner/src/distributed_file_daemon_manager.cpp",
     "${distributedfile_path}/frameworks/native/distributed_file_inner/src/distributed_file_daemon_manager_impl.cpp",
diff --git a/utils/BUILD.gn b/utils/BUILD.gn
index 395966f9be8b73b9514fdec4abac712644415e65..d8d48acdb9e426c71dc629f8752c235798f55347 100644
--- a/utils/BUILD.gn
+++ b/utils/BUILD.gn
@@ -57,6 +57,12 @@ config("utils_public_config") {
 }
 
 ohos_shared_library("libdistributedfileutils") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   sources = [
     "cloud_disk/src/cloud_file_utils.cpp",
     "dfx/src/xcollie_helper.cpp",
@@ -114,6 +120,12 @@ config("dentry_public_config") {
 }
 
 ohos_shared_library("libdistributedfiledentry") {
+  branch_protector_ret = "pac_ret"
+  sanitize = {
+    cfi = true
+    cfi_cross_dso = true
+    debug = false
+  }
   include_dirs = [
     "dentry/include",
     "log/include",