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May 20, 2024 · Instead of haphazard testing, you need tools for systematic comparison of the two sides of the linkage interface between binaries. From this need, libabigail was built in 2013. It includes tools to analyze the debugging data of each binary, to infer fine-grained ABI data on both sides of an interface: what a caller uses, and what the callee ...
- Ensuring Backward Compatibility
- The Example Project: Libslicksoft.So
- The Python-based Abi Diff Checker
- Using Check-Abi from The Makefile
- Run The Checker
- Conclusion
If we state that the ABI of a newer version of a shared library is backward compatible, we're assuring our users that ABI changes in the newer version of the library won't affect applications linked against older versions. This means application functionality won't change or be disrupted in any way, even for users who update to the newer version of...
For the sake of this article, let's assume I'm the release manager for a free software project named SlickSoftware. I have convinced you (my fellow hacker) that the ABI of our library, libslicksoft.so, should be backward compatible with older versions, at least for now. In order to ensure backward compatibility, we'll write an ABI-checking program ...
Our next task is to write a program that invokes abidiff to perform the ABI check. We'll call it check-abi and place it in the new slick-software/toolsdirectory. I've been told Python is cool, so I want to try it out with this new checker. I am far from being a Python expert, but hey, what can go wrong?
We're done with our basic checker, but we could add a feature or two. For instance, wouldn't it be nice if we could invoke our shiny new check-abi program from the slick-software/lib directory? Then we could enter a simple makecommand anytime we needed to do an ABI verification. We can set this feature up by adding a rule at the end of the slick-so...
We're nearly done, but let's test our new checker with a simple ABI check for backward compatibility. First, I will make a few changes to the slick-softwarelibrary, so I have differences to check. Next, I visit the slick-software/lib directory and run make abi-check. Here's what's I get back: The ABI checker is reporting one compatibility issue, wi...
In this article, I showed you how to write a basic ABI verifier for shared libraries in your upstream projects. To keep this project simple, I left out other features that you might want to add to the checker yourself. For instance, Libabigail has mechanisms for handling false positives, which are common in real-world projects. Also, we are constan...
ABI Compliance Checker — a tool for checking backward API/ABI compatibility of a C/C++ library: abi-compliance-checker -lib NAME -old OLD.abidump -new NEW.abidump. *.abidump files are ABI dumps of OLD and NEW library versions generated by the ABI Dumper tool. icheck - C interface ABI/API checker:
Aug 28, 2024 · The first direction involves binary compatibility between two distinct distributions. For instance, although Ubuntu is essentially derived from Debian, the changes made to Ubuntu suggest that packages built for Debian may not necessarily operate on Ubuntu. In contrast, both CentOS and Oracle Linux are application binary compatible with RHEL.
compatibility. Conformance to the same ABI and the same behavior of implementation-defined features are both relevant for compatibility. The application binary interface implemented by a C or C++ compiler affects code generation and runtime support for: size and alignment of data types. layout of structured types.
The tool is intended for developers of software libraries and Linux maintainers who are interested in ensuring backward compatibility, i.e. allow old applications to run or to be recompiled with newer library versions. The tool is a core of the ABI Tracker and Upstream Tracker projects: https://abi-laboratory.pro/tracker/
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What is Abi compliance checker (ABiCC)?
What is API/ABI / API+compiler ABI tool?
How to compare library versions using libabigail's abidiff program?
What is an application binary interface (ABI)?
Does Abi checker detect compatibility issue?
Which features are not covered by an ABI?
A tool for checking backward API/ABI compatibility of a C/C++ library. ABI Compliance Checker (ABICC) is a tool for checking backward binary and source-level compatibility of a C/C++ library. The tool analyzes changes in API/ABI (ABI=API+compiler ABI) that may break binary compatibility and/or source compatibility: changes in calling stack, v ...
