基于acoral操作系统的调试器的研究与设计

发布时间：2018-04-04 23:15

本文选题：acoral　切入点：PB11MPCore　出处：《电子科技大学》2012年硕士论文

【摘要】：当前嵌入式技术炙手可热，随着其技术的不断发展和完善，如今嵌入式系统越来越复杂，大大增加了引发软件bug的可能性，这就凸显了调试器在嵌入式系统开发中的作用。作为程序医生，调试器在发现、消除软件bug方面，有着不可替代的作用。与PC上传统的单机调试不同，嵌入式系统由于受到软硬件资源的限制，采用交叉调试技术，即调试器分为目标机端和宿主机端两部分。如何利用调试技术去除软件中的bug，，提高调试效率，缩短软件开发时间成了嵌入系统开发中的一个重要话题。 Acoral是一个由学生开发的嵌入式操作系统，它开放源码，具有支持多核和强实时的特性，是一款极具开发潜力的操作系统。目前并没有现成的调试器支持它，因此如果为其开发一款服务器端的调试器，即能够深入了解acoral内核，也能接触到嵌入式中调试器设计的核心技术，具有很强的实践意义。本文首先详细分析了嵌入式调试器设计方面的关键技术，包括dwarf调试信息格式、调试信息的读取以及调试的主要功能，然后结合acoral的源码分析了acoral的框架和与调试相关的部分，以gdb为基础，设计并实现了一款针对于acoral的源码级目标机端调试器，最后将acoral移植到PB11MPCore多处理器开发板，通过对acoral中的线程进行调试，对调试器的功能进行了测试和验证。
[Abstract]:With the development and perfection of embedded technology, the embedded system is becoming more and more complex, which greatly increases the possibility of triggering software bug, which highlights the role of debugger in the development of embedded system.As a programmer, the debugger has an irreplaceable role in discovering and eliminating software bug.Different from the traditional single-machine debugging on PC, the embedded system is limited by the software and hardware resources, so the intersecting debugging technology is adopted, that is, the debugger is divided into two parts: the target computer and the host computer.How to use debugging technology to remove bugs in software, improve debugging efficiency and shorten software development time has become an important topic in embedded system development.Acoral is an embedded operating system developed by students. It is open source and has the characteristics of multi-core and strong real-time. It is a promising operating system.At present, there is no ready-made debugger to support it, so it is of great practical significance to develop a server-side debugger for it, not only to understand the acoral kernel in depth, but also to contact with the core technology of debugger design in embedded system.In this paper, the key technologies in the design of embedded debugger are analyzed in detail, including the format of dwarf debugging information, the reading of debugging information and the main functions of debugging. Then, the framework of acoral and the related parts of debugging are analyzed in combination with the source code of acoral.On the basis of gdb, this paper designs and implements a source level target machine debugger for acoral. Finally, the acoral is transplanted to the PB11MPCore multiprocessor development board, and the function of the debugger is tested and verified by debugging the threads in acoral.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

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