Jalangi2 is a framework for writing dynamic analyses for JavaScript. Jalangi1 is still available at https://github.com/SRA-SiliconValley/jalangi, but

GitHub - Samsung/jalangi2: Dynamic analysis framework for JavaScript

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2023-01-24 05:30:03

Jalangi2 is a framework for writing dynamic analyses for JavaScript. Jalangi1 is still available at https://github.com/SRA-SiliconValley/jalangi, but we no longer plan to develop it. Jalangi2 does not support the record/replay feature of Jalangi1. In the Jalangi2 distribution you will find several analyses:

We have tested Jalangi on Mac OS X with Chromium browser. Jalangi should work on Mac OS 10.7, Ubuntu 11.0 and higher and Windows 7 or higher. Jalangi will NOT work with IE.

If you have a fresh installation of Ubuntu, you can install all the requirements by invoking the following commands from a terminal (package names may be out of date).

In the above analysis, we chained several analyses by including --analysis src/js/analyses/ChainedAnalyses.js as the first analysis. The command runs the following analyses

The implementation of an analysis requires the implementation of several callback functions. One can start writing an writing analysis using the template file src/js/runtime/analysisCallbackTemplate.js. A documentation of these call back functions can be found at docs/MyAnalysis.html. A tutorial on writing a Jalangi analysis can be found at docs/tutorial1.md. While writing an analysis one could run src/js/sample_analyses/pldi16/TraceAll.js analysis on a JavaScript file to print all the callback functions that got called during the execution of the file. Such a trace is useful to see what callbacks get called during an execution. The following command runs the TraceAll.js analysis on the file tests/octane/deltablue.js.