Visual emulation for Ethereum's virtual machine

Robert Norvill, Beltran Borja Fiz Pontiveros, R. State, A. Cullen
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引用次数: 19

Abstract

In this work we present E-EVM, a tool that emulates and visualises the execution of smart contracts on the Ethereum Virtual Machine. By working with the readily available bytecode of smart contracts we are able to display the program's control flow graph, opcodes and stack for each step of contract execution. This tool is designed to aid the user's understanding of the Etheruem Virtual Machine as well as aid the analysis of any given smart contract. As such, it functions as both an analysis and a learning tool. It allows the user to view the code in each block of a smart contract and follow possible control flow branches. It is able to detect loops and suggest optimisation candidates. It is possible to step through a contract one opcode at a time. E-EVM achieved an average of 85.6% code coverage when tested.
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以太坊虚拟机的可视化仿真
在这项工作中,我们介绍了E-EVM,这是一种在以太坊虚拟机上模拟和可视化智能合约执行的工具。通过使用智能合约的字节码,我们能够显示程序的控制流图、操作码和合约执行的每个步骤的堆栈。该工具旨在帮助用户理解以太坊虚拟机,并帮助分析任何给定的智能合约。因此,它既是一个分析工具,也是一个学习工具。它允许用户查看智能合约的每个块中的代码,并遵循可能的控制流分支。它能够检测循环并建议优化候选。可以一次对一个操作码执行一个合约。E-EVM在测试时平均达到了85.6%的代码覆盖率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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