基于代码压缩方法的嵌入式编译优化研究

随着嵌入式系统应用的深入,日渐庞大的软件与有限的硬件资源之间的矛盾逐渐显现出来,软件对计算系统性能的要求也越来越高。由于嵌入式系统是以计算机技术为基础、软件硬件可裁减、适应应用的系统对功能、可靠性、成本、体积、功耗严格要求的专用计算机系统,在嵌入式开发过程中,代码压缩能减小程序所生成的目标代码大小。该文首先介绍代码压缩的研究背景,再分析其主要方法、特点以及在作者参与开发的编译器中的应用,最后提出目前存在的若干问题。

Research on embedded system compiler optimization based on code compression

With the advancement of the embedded system,the conflict between the size of software and hardware resources have emerged.Software asks high computer system performance.Embedded System is restricted by the cost,silicon area and power-consuming,code compression can reduce the size of object code generated by the program.Firstly,this paper will give a brief introduction of the research background,and then demonstrate some methods and their features of code compression and depict the application in certain compiler,finally,we discuss the shortcomings of the current methods.