A java bytecode debugger and debugging method

Abstract

The invention provides a Java bytecode debugger and debugging method which are used for improving the debugging efficiency of Java software engineers, and relates to the technical field of software engineering. The Java bytecode debugger comprises a symbol library module, a cache module, a debugging module, a stack analysis module and a quote analysis module; the symbol library module is used for acquiring symbol information from a Java source code file and storing the symbol information; the cache module is used for acquiring symbol information and data information from a Java bytecode file and caching the symbol information and the data information; the debugging module is used for being connected with a virtual machine through a Keil channel, and therefore the Java bytecode file can run and be debugged on the virtual machine; the stack analysis module is used for receiving a Java stack in a memorizer of the virtual machine running to a breakpoint position and analyzing the Java stack; the quote analysis module is used for analyzing a Java quote corresponding to a Java bytecode when the virtual machine runs to the breakpoint position. The debugger and debugging method are used for debugging the Java bytecode.

Description

technical field [0001] The application relates to the technical field of software engineering, in particular to a Java bytecode debugger and a debugging method. Background technique [0002] The Java language has been applied to the programming of various applications. The smart card written by the Java language in the card chip system is also called a Java card. The Java card includes Java bytecode compiled from Java source code and written by C program. The virtual machine is used to parse and execute Java bytecode. [0003] At present, the system programs in the Java card are debugged based on the Java source code. Generally, it is realized by adding a debugging plug-in on the eclipse development platform and connecting the debugging plug-in to the virtual machine. The specific debugging process includes compiling the Java source code into Java bytecode. and running the compiled Java bytecode on the virtual machine. [0004] Because in the above process of debugging the...

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Problems solved by technology

[0004] Because in the above process of debugging the Java source code, what is encapsulated into the Java card chip and runs on the virtual machine is actually Java bytecode, which makes the above-mentioned debugging method based on the Java source code unable to help engineers intuitively and accurately To locate abnormal problems in the middle of running, making the debugging efficiency of Java software engineers relatively low

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