嵌入式Linux在SMP系统上的移植研究与实现

摘要

The thesis is aimed to conduct independent research and development of embedded applications, which are implemented with dual-core embedded EM 8301 CPU as a processing center. Additionally, the thesis also discusses varied topics, ranging from the characteristics of dual-core CPU chip systems and Linux kernels to transplantation of Linux operating system to SMP system. Based on these discussions, it goes further to investigate problems related to the multi-core hardware platform built under SMP system. These problems are related to start-up process, task-scheduling strategies, the synchronization and mutual exclusion among tasks, as well as interruption processing. In the end, the thesis proposes a solution that solves the above problems and meanwhile caters to the practical needs of developing embedded applications. Furthermore, the proposal can also prove that embedded Linux can be transplanted to SMP system, and functions successfully on self-developed CPU chip.%基于自主开发以双核嵌入式CPU EM8301为处理核心的嵌入式应用的目的，针对双核CPU芯片的系统结构和Linux内核的特性，通过研究嵌入式Linux操作系统在SMP系统上的移植，探讨SMP架构多核硬件平台下的启动流程、任务调度策略、任务间同步与互斥、中断处理等问题，结合自主研发嵌入式应用的实际需求，得到解决上述问题的方案，完成嵌入式Linux在SMP系统上的移植，并实现嵌入式Linux在自主CPU芯片上的成功运行。