1da5c2af6Sopenharmony_ci# bootstrap启动引导部件<a name="ZH-CN_TOPIC_0000001082300996"></a> 2da5c2af6Sopenharmony_ci## 简介<a name="section469617221261"></a> 3da5c2af6Sopenharmony_ci 4da5c2af6Sopenharmony_cibootstrap启动引导组件，提供了各服务和功能的启动入口标识。在SAMGR启动时，会调用bootstrap标识的入口函数，并启动系统服务。 5da5c2af6Sopenharmony_ci 6da5c2af6Sopenharmony_ci**图 1** bootstrap启动引导组件框架图 7da5c2af6Sopenharmony_ci 8da5c2af6Sopenharmony_ci 9da5c2af6Sopenharmony_ci 10da5c2af6Sopenharmony_ci## 目录<a name="section1464106163817"></a> 11da5c2af6Sopenharmony_ci 12da5c2af6Sopenharmony_ci``` 13da5c2af6Sopenharmony_cibase/startup/bootstrap_lite/ # 启动引导组件 14da5c2af6Sopenharmony_ci└── services 15da5c2af6Sopenharmony_ci └── source # 启动引导组件源文件目录 16da5c2af6Sopenharmony_ci``` 17da5c2af6Sopenharmony_ci 18da5c2af6Sopenharmony_ci## 约束<a name="section12212842173518"></a> 19da5c2af6Sopenharmony_ci 20da5c2af6Sopenharmony_ci目前支持轻量系统设备（参考内存≥128KB），如Hi3861V100。 21da5c2af6Sopenharmony_ci 22da5c2af6Sopenharmony_ci## 使用说明<a name="section1483211215513"></a> 23da5c2af6Sopenharmony_ci 24da5c2af6Sopenharmony_cibootstrap组件无需单独配置，在SAMGR启动时会自动调用，用于启动系统服务。 25da5c2af6Sopenharmony_ci 26da5c2af6Sopenharmony_ci## 相关仓<a name="section641143415335"></a> 27da5c2af6Sopenharmony_ci**[startup\_bootstrap\_lite](https://gitee.com/openharmony/startup_bootstrap_lite)** 28da5c2af6Sopenharmony_ci 29da5c2af6Sopenharmony_ci[startup\_init\_lite](https://gitee.com/openharmony/startup_init_lite) 30da5c2af6Sopenharmony_ci 31da5c2af6Sopenharmony_ci[startup\_appspawn](https://gitee.com/openharmony/startup_appspawn)