quard_star_tutorial. This project aims to build an Embedded Linux System, in order to analyze the chip from the power-on execution of the first instruction to the entire system running, based on qemu simulator development board. 本项目旨在真正从0开始构建嵌入式linux系统，为了剖析芯片从上电开始执行第一条指令到整个系统运行，基于qemu定制模拟器开发板。