yócto

Yocto refers to a set of open-source collaboration projects that provide templates, tools, and methods to help you create custom Linux-based systems for embedded products, regardless of hardware architecture. The Yocto Project is not a distribution itself, but rather a collection of tools and metadata that allows for the creation of custom Linux distributions. Its primary goal is to provide flexibility and control over the embedded Linux build process.

The core of the Yocto Project is the OpenEmbedded build system, which uses a package manager called opkg and a configuration system based on BitBake. BitBake is a task scheduler and execution engine that reads metadata files, called recipes, to determine how to fetch, configure, compile, and package software components. Recipes describe the source code location, dependencies, and build instructions for individual software packages.

Users typically interact with the Yocto Project by defining their custom Linux system through configuration files and selecting the software components they wish to include. This allows for highly tailored solutions, optimizing for specific hardware constraints, feature sets, and licensing requirements. The Yocto Project supports a wide range of architectures and is used in various industries, including automotive, industrial automation, and consumer electronics. It emphasizes reproducibility and maintainability of the build process.