diff --git a/README.md b/README.md
index 0ea8f0f..6df0687 100644
--- a/README.md
+++ b/README.md
@@ -6,3 +6,10 @@
 
 1. 基于官网 GD32W51x v1.0.3开发；
 2. 加入source + lunch支持；
+
+### 环境配置
+
+1. 临时增加工具链信息
+```shell
+ln -snf /opt/toolchains/gcc-arm-none-eabi/ prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8
+```
diff --git a/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8 b/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8
new file mode 120000
index 0000000..c55ffd6
--- /dev/null
+++ b/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8
@@ -0,0 +1 @@
+/opt/toolchains/gcc-arm-none-eabi/
\ No newline at end of file