2.8. Development Concepts

+2.8. Development Concepts

+ This section takes a more detailed look inside the development + process. + The following diagram represents development at a high level. + The remainder of this chapter expands on the fundamental input, output, + process, and + Metadata) blocks + that make up development in the Yocto Project environment. +

+ In general, development consists of several functional areas: +

User Configuration: + Metadata you can use to control the build process. +
Metadata Layers: + Various layers that provide software, machine, and + distro Metadata.
Source Files: + Upstream releases, local projects, and SCMs.
Build System: + Processes under the control of + BitBake. + This block expands on how BitBake fetches source, applies + patches, completes compilation, analyzes output for package + generation, creates and tests packages, generates images, and + generates cross-development tools.
Package Feeds: + Directories containing output packages (RPM, DEB or IPK), + which are subsequently used in the construction of an image or + SDK, produced by the build system. + These feeds can also be copied and shared using a web server or + other means to facilitate extending or updating existing + images on devices at runtime if runtime package management is + enabled.
Images: + Images produced by the development process. +
Application Development SDK: + Cross-development tools that are produced along with an image + or separately with BitBake.