Testing and Continuous Delivery
Instrument and Unit Test an Asm-only OS Kernel by Turning it into an Anykernel
<p>OS kernel development is often connected with time consuming testing process and non-trivial debug technics. Although emulators like QEMU and Bochs ease this work significantly, nothing can compare with convenience of userspace developer environment. Moving parts of the kernel to the userspace binary is not straightforward, especially if the kernel has almost no compatibility with POSIX and is written entirely in assembly. Still, sometimes it is doable. The talk shares experience, architecture and design decisions of compiling VFS, block, and some other subsystems of KolibriOS as Linux® interactive shell program and a FUSE filesystem. Implemented unit testing framework and coverage collection tool for assembly (flat assembler) programs are also discussed.</p>
Additional information
| Live Stream | https://live.fosdem.org/watch/h2213 |
|---|---|
| Type | devroom |
| Language | English |
More sessions
| 2/1/26 |
<p>A number of industrial applications now demand hard real-time scheduling capabilities from the kernel of a Linux-based operating system, but scheduling measurements from the system itself cannot be completely trusted as they are referenced to the same clock as the kernel-under-test. Yet, if the system can output signals to hardware as it runs, their timing can be analysed by an external microcontroller, and a second "external" measurement obtained to compare with the system's own report.</p> ...
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<p>Talk about a project that implements a hardware-in-the-loop testing framework for validating Linux distributions on specific development boards. The system uses a universal testing harness that automatically detects target hardware platforms and adapts generic testing scripts to board-specific configurations with Claude AI help. Platform adaptation is achieved through specific configuration files that define board-specific parameters, enabling the same testing codebase to validate different ...
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| 2/1/26 |
<p>The <strong>ci-multiplatform</strong> project is a generic, OCI-based multi-architecture CI system designed to make cross-platform testing practical for open-source projects using GitLab CI. Originally created while enabling RISC-V support for Pixman (https://gitlab.freedesktop.org/pixman/pixman), it has since grown into an independent project under the RISE (RISC-V Software Ecosystem) umbrella: https://gitlab.com/riseproject/CI/ci-multiplatform, with a mirror on freedesktop.org: ...
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| 2/1/26 |
<p>Testing is central to modern software quality, yet many widely used Fortran codebases still lack automated tests. Existing tests are often limited to coarse end-to-end regression checks that provide only partial confidence. With the growth of open-source Fortran tools, we can now bring unit testing and continuous validation to legacy and modern Fortran projects alike. </p> <p>This talk surveys the current landscape of Fortran testing frameworks before focusing on three I have evaluated in ...
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| 2/1/26 |
<p>ESPHome is a versatile framework to create custom firmware for various microcontrollers. In this talks we will look at how to automatically test the latest ESPHome firmware on an ESP32.</p> <p>As ESPHome devices are used to interact with the real world, we will also look at how to test that the LUX sensors is able to detect light variations.</p> <p>In order to test the ESP32 device, we are going to use lava on the command line, directly inside a gitlab runner.</p>
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| 2/1/26 |
<p>The CI/CD server Jenkins provides powerful build-quality visualizations through plugins such as <a href="https://plugins.jenkins.io/warnings-ng/">Warnings</a>, <a href="https://plugins.jenkins.io/coverage/">Coverage</a>, and <a href="https://plugins.jenkins.io/git-forensics/">Git Forensics</a>. These plugins aggregate and visualize data from static analysis tools, coverage reports, software metrics, and Git history, enabling teams to track quality trends across builds. We have now brought ...
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<p>CI/CD with Gerrit, AI-Enhanced Review, and Hardware-in-the-Loop Testing in Jenkins Pipelines This presentation will explore advanced Continuous Integration (CI) strategies essential for open-source embedded systems development, moving beyond standard software testing to encompass physical hardware validation. We will begin by establishing the necessity of integrating rigorous unit and integration testing directly into the development workflow, demonstrating how to effectively define these ...
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