Comprehensive Multiplatform Dynamic Program Analysis for Java and Android

Dynamic program analyses, such as profiling, tracing and bug-finding tools, are essential for software engineering. Unfortunately, implementing dynamic analyses for managed languages such as Java is unduly difficult and error-prone, because the run-time environments provide only complex low-level mechanisms. Currently, programmers writing custom tooling must expend great effort in tool development and maintenance, while still suffering substantial limitations such as incomplete code coverage or lack of portability. Ideally, a framework would be available in which dynamic analysis tools could be expressed at a high level, robustly, with high coverage and supporting alternative run-times such as Android. We describe our research on an \all-in-one" dynamic program analysis frame- work which uses a combination of techniques to satisfy these requirements

A Program Optimization Method for Embedded Software Developed Using Open Sources

Program optimization or software optimization is the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources. When developing software for embedded systems, open source libraries are usually used. An Embedded software built using a variety of open software and libraries is apt to have too many unused codes because open source libraries contain many functions and features to be used in various applications. In this paper, we describe the process of a library optimization method to reduce memory consumption for the user interface software of a set-top box product. The overall optimization process uses freeware tools developed for the Linux operating system. We devised an optimization technique to compensate for operation imperfections in the target system. The original Qt library of 19.57 MB was optimized to be 7.26 MB in program image size. In the case of the DirectFB library, 3.2 MB was reduced to 2.4 MB. The optimization process can be applied to any embedded software that are developed with open source libraries or sources