多映像加载方法在嵌入式系统程序调试中的应用  

Implementation of debugging in embeded systems with multi-image loading-symdefs files in ARM and debugging based on μC/OS-Ⅱ

作　　者：孟钢[1] 陈安[1] 胡跃明[1] 

机构地区：[1]华南理工大学自动化科学与工程学院,广州510640

出　　处：《计算机工程与应用》2007年第5期76-78,共3页Computer Engineering and Applications

基　　金：广东省自然科学博士科研启动基金(the Natural Science Foundation of Guangdong Province of China under Grant No.05300182);广东省科技公关计划(the Key Technologies R&D Program of Guangdong Province; China under Grant No.2004A10403001);广东省粤港关键领域重点突破项目(No.20041A01; No.TC05B372-1);广东高校科技成果转化重大项目(No.cgzhzd0403; No.cgzhzd0402) 资助;2005年华南理工大学自然科学基金

摘　　要：ARM体系中的symdefs文件(symbol definitionfile)是一种目标文件,包含了从输出映像得到的全局符号定义。以symdefs文件为核心的多映像加载方法,改变了传统的多文件同时下载的方法,能够实现操作系统内核与应用任务的分别加载。论文首先介绍了symdefs文件及以它为核心的多映象加载方法的具体内容,然后以EasyARM2104开发板上移植的μC/OS-Ⅱ操作系统为例介绍了多映像加载方法的具体实现实例。实验结果表明,多映像加载方法能够实现代码的正常加载,并且有利于缩短下载时间,加快开发速度。The symdefs file is a type of object file of ARM system that contains symbols and their values of the input image. The multi-image loading method based on symdefs files download the kernel of operation system and their application tasks separately,instead of download all of the files at one time.Firstly this paper introduces what is symdefs files and the multi-image loading method,then discusses how to use the multi-image loading method on the EasyARM2104 board where the μC/OS- Ⅱ is proted to.The result of the tests shows that the multi-image loading method can no： only work as traditional method,but also shorten the download time and accelerate the development.

关 键 词：嵌入式系统 μC/OS-Ⅱ 映象文件 多映像加载 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]