java bytecode to native code translation (the caffeine…：java字节码到本地代码翻译（咖啡因….pdf

1 Java Bytecode to Native Code Translation: The Caffeine Prototype and Preliminary Results Cheng-Hsueh A. Hsieh John C. Gyllenhaal Wen-mei W. Hwu Center for Reliable and High-puting University of Illinois Urbana-Champaign, IL 61801 ada, gyllen, ******@ Abstract The Java bytecode language is emerging as a software distribution standard. With major m itted to porting the Java run-time environment to their platforms, programs in Java bytecode are expected to run without modification on multiple platforms. These first generation run- time environments rely on an interpreter to bridge the gap between the bytecode instructions and the native hardware. This interpreter approach is su fficient for specialized applications such as browsers where application performance is often limited work delays rather than processor speed. It is, however, not sufficient for executing general applications distributed in Java bytecode. This paper presents our initial prototyping experience with Caffeine, an optimizing translator from Java bytecode to native machine code. We discuss the major technical issues involved in stack to register mapping, run-time memory structure mapping, and exception handlers. Encouraging in itial results based on our X86 port are presented. 1. Introduction The munity has long desired a universal software distribution language. If such a language is w