Android 启动过程详解

核心提示：also calls system_init to start system services. So there is a question: why does Android have two methods to start system services? My guess is that directly s

also calls system_init to start system services. So there is a question: why does Android have two methods to start system services? My guess is that directly start system_server may have synchronous problem with zygote because system_server will call JNI to start SystemServer::init2, while at that time zygote may not start JAVA VM yet. So Android uses another method. After zynote is initialized, fork a new process to start system services