diff --git a/build.sh b/build.sh
index 6ad37db5d67823d6908ef8f90c564bb5325044b4..4475a50ae37deb0665283f3078adce69b20be7ae 100755
--- a/build.sh
+++ b/build.sh
@@ -32,6 +32,7 @@ set -e
 
 echo "sh param:$1,$2,$3,$4,$5,$6,$7"
 destination=".config"
+config_file=""
 tee=""
 outdir="../..$3/test_info/gen/kernel/test"
 if [ "$5" = "tee" ]; then
@@ -41,15 +42,19 @@ productName="$(basename $7)"
 source="tools/build/config/${productName}_release.config"
 if [ "$2" = "clang" ]; then
     if [ "$4" = "debug" ]; then
-        source="tools/build/config/debug/${productName}_$2$tee.config"
+        config_file="${productName}_$2$tee.config"
+        source="tools/build/config/debug/$config_file"
     else
-        source="tools/build/config/${productName}_$2_release$tee.config"
+        config_file="${productName}_$2_release$tee.config"
+        source="tools/build/config/$config_file"
     fi
 elif [ "$2" = "gcc" ]; then
     if [ "$4" = "debug" ]; then
-        source="tools/build/config/${productName}_debug_shell$tee.config"
+        config_file="${productName}_debug_shell$tee.config"
+        source="tools/build/config/$config_file"
     else
-        source="tools/build/config/${productName}_release$tee.config"
+        config_file="${productName}_release$tee.config"
+        source="tools/build/config/$config_file"
     fi
 fi
 if [ -d "./out" ]; then
@@ -58,6 +63,9 @@ fi
 if [ -f "$destination" ]; then
     rm -rf $destination
 fi
+if [ ! -f "$source" ]; then
+    source="$7/config/sys/$config_file"
+fi
 cp $source $destination
 
 mkdir -p $outdir
diff --git a/platform/Kconfig b/platform/Kconfig
index a9886b3ce8979e55c8a4cee97389045371808566..4982bcacde1563a140a6228465b9f752a11511a2 100755
--- a/platform/Kconfig
+++ b/platform/Kconfig
@@ -5,7 +5,7 @@ config PLATFORM
     default "virt"            if PLATFORM_QEMU_ARM_VIRT_CA7
 
 config PRODUCT_NAME
-    string
+    string "unknown"
     default "ipcamera_hi3516dv300_liteos" if PRODUCT_IPCAMERA_HI3516DV300_LITEOS
     default "ipcamera_hi3518ev300_liteos" if PRODUCT_IPCAMERA_HI3518EV300_LITEOS
     default "hispark_taurus" if PRODUCT_HISPARK_TAURUS
@@ -13,7 +13,7 @@ config PRODUCT_NAME
     default "arm_virt" if PRODUCT_QEMU_ARM
 
 config DEVICE_COMPANY
-    string
+    string "unknown"
     default "hisilicon" if PLATFORM_HI3516DV300
     default "hisilicon" if PLATFORM_HI3518EV300
     default "qemu" if PLATFORM_QEMU_ARM_VIRT_CA7