使用官方工具生成patch下面以修改libpam为例1、修改源码devtool modify libpam完成后源码会被拷贝到workspace/sources/libpam/根据提示到 workspace/source/libpam 中修改源码2、测试编译devtool build libpam3、生成 patch修改完成以后执行devtool finish libpam meta-my-layer它会自动git commit生成 patch添加meta-my-layer/ └── recipes-core/ └── libpam/ ├── libpam_%.bbappend └── 0001-xxx.patch并自动修改 bbappendSRC_URI file://0001-xxx.patch