diff --git a/base/BUILD.gn b/base/BUILD.gn
index 3742cae4c4d41bb17f84931fb206cb97f5b385e7..30ab0f6f0252aa51dd880256a12769f21ecd0622 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -23,7 +23,10 @@ config("utils_config") {
   if (current_os == "mingw") {
     cflags += [ "-Wno-error=inconsistent-dllimport" ]
   }
-  cflags += [ "-Wno-implicit-fallthrough" ]
+}
+
+config("private_securec_config") {
+  cflags = [ "-Wno-implicit-fallthrough" ]
 }
 
 config("static_utils_config") {
@@ -53,6 +56,9 @@ sources_utils = [
   "src/timer_event_handler.cpp",
   "src/ashmem.cpp",
   "src/rwlock.cpp",
+]
+
+securec_sources = [
   "src/securec/fscanf_s.c",
   "src/securec/fwscanf_s.c",
   "src/securec/gets_s.c",
@@ -79,6 +85,7 @@ sources_utils = [
   "src/securec/vfwscanf_s.c",
   "src/securec/vscanf_s.c",
   "src/securec/vsnprintf_s.c",
+  "src/securec/vsnprintf_s_p.c",
   "src/securec/vsprintf_s.c",
   "src/securec/vsscanf_s.c",
   "src/securec/vswprintf_s.c",
@@ -96,14 +103,23 @@ sources_utils = [
 
 ohos_static_library("utilsbase") {
   sources = sources_utils
-  configs = [ ":utils_config" ]
+  sources += securec_sources
+  configs = [
+    ":utils_config",
+    ":private_securec_config",
+  ]
   defines = [ "CONFIG_HILOG" ]
   external_deps = [ "hilog_native:libhilog" ]
 }
 
 ohos_shared_library("utils") {
   sources = sources_utils
-  configs = [ ":utils_config" ]
+  sources += securec_sources
+  configs = [
+    ":utils_config",
+    ":private_securec_config",
+  ]
+  public_configs = [ ":static_utils_config" ]
   subsystem_name = "utils"
   defines = [ "CONFIG_HILOG" ]
   external_deps = [ "hilog_native:libhilog" ]
@@ -114,58 +130,21 @@ ohos_shared_library("utils") {
   ]
 }
 
-securec_sources = [
-  "src/securec/fscanf_s.c",
-  "src/securec/fwscanf_s.c",
-  "src/securec/gets_s.c",
-  "src/securec/memcpy_s.c",
-  "src/securec/memmove_s.c",
-  "src/securec/memset_s.c",
-  "src/securec/scanf_s.c",
-  "src/securec/securecutil.c",
-  "src/securec/secureinput_a.c",
-  "src/securec/secureinput_w.c",
-  "src/securec/secureprintoutput_a.c",
-  "src/securec/secureprintoutput_w.c",
-  "src/securec/snprintf_s.c",
-  "src/securec/sprintf_s.c",
-  "src/securec/sscanf_s.c",
-  "src/securec/strcat_s.c",
-  "src/securec/strcpy_s.c",
-  "src/securec/strncat_s.c",
-  "src/securec/strncpy_s.c",
-  "src/securec/strtok_s.c",
-  "src/securec/swprintf_s.c",
-  "src/securec/swscanf_s.c",
-  "src/securec/vfscanf_s.c",
-  "src/securec/vfwscanf_s.c",
-  "src/securec/vscanf_s.c",
-  "src/securec/vsnprintf_s.c",
-  "src/securec/vsnprintf_s_p.c",
-  "src/securec/vsprintf_s.c",
-  "src/securec/vsscanf_s.c",
-  "src/securec/vswprintf_s.c",
-  "src/securec/vswscanf_s.c",
-  "src/securec/vwscanf_s.c",
-  "src/securec/wcscat_s.c",
-  "src/securec/wcscpy_s.c",
-  "src/securec/wcsncat_s.c",
-  "src/securec/wcsncpy_s.c",
-  "src/securec/wcstok_s.c",
-  "src/securec/wmemcpy_s.c",
-  "src/securec/wmemmove_s.c",
-  "src/securec/wscanf_s.c",
-]
-
 ohos_static_library("utilsecurec") {
   sources = securec_sources
-  configs = [ ":utils_config" ]
+  configs = [
+    ":utils_config",
+    ":private_securec_config",
+  ]
 }
 
 if (build_public_version) {
   ohos_shared_library("utilsecurec_shared") {
     sources = securec_sources
-    configs = [ ":utils_config" ]
+    configs = [
+      ":utils_config",
+      ":private_securec_config",
+    ]
     public_configs = [ ":utils_config" ]
     part_name = "utils_base"
     install_images = [