Source code repository gives you access to a knownįollowing is the usage and syntax for BitBake: Releases behind a snapshot of the BitBake repository.ĭownloading a snapshot of BitBake from the Provided by your distribution, in most cases, Recommended because the BitBake version that is
Here is an example that names the directory If you want to call the new directory something This command clones the BitBake Git repository into a Here is an example that clones the BitBake repository: The metadata is generally backwards compatible but Once you have cloned BitBake, you should useīranch for development since the master branch is forīitBake development and might contain less stable changes. Is the recommended method for obtaining BitBake.Ĭloning the repository makes it easy to get bug fixesĪnd have access to stable branches and the master Using Git to clone the BitBake source code repository So, the append file would match the following recipe names:īusybox_1.3.0.bb, the append name would notīusybox_1.%.bbappend, then you would have a match. That append file would match any busybox_1.21.x.bb Wildcard character (%) to allow for matching recipe names.įor example, suppose you have an append file named When you name an append file, you can use the Information in append files overrides the information in the The filenames can differ only in the file type suffix used You can accomplish this through a recipe that is a BitBake appendĪppend files, which are files that have theīitBake expects every append file to have a corresponding recipe file.įurthermore, the append file and corresponding recipe file The GUI environment layer without polluting the GUI layer itself Make machine-specific additions to recipes within It is important to understand, however, that the BSP layer can still This situation gives you a couple of layers: one for the machineĬonfigurations and one for the GUI environment. Recipes and metadata that support a new GUI environment, for Rather than a general layer, called a Board Specific Package (BSP) Layer.įurthermore, the machine customizations should be isolated from These types of customizations typically reside in a special layer, To illustrate how you can use layers to keep things modular,Ĭonsider customizations you might make to support a specific target machine. Your metadata, the easier it is to cope with future changes. When working on a single project, the more modular you organize While you might find it tempting to keep everything in one layer Layers allow you to isolate different types of Over time it became apparent that some further requirements Provide an inheritance mechanism that share Operating system, distribution, and machine.īe easy to use the tools to supply local metadata and packagesīe easy to use BitBake to collaborate between multiple Handle conditional metadata on the target architecture, Support multiple build and target operating systems Upstream sources, unpacking them, patching them,īe Linux distribution agnostic for both build and Package, including, but not limited to, fetching Support running any number of tasks within a given Target architecture, build time on native Handle inter-package dependencies (build time on Subversion (SVN) Fetcher ( svn://) 4.3.5. Accessing Datastore Variables Using Python 3.11. Variants - Class Extension Mechanism 3.9. Passing Information Into the Build Task Environment 3.6. Flexible Inheritance for Class Functions 3.5. Appending and Prepending (Override Style Syntax) 3.1.9.
Appending (.=) and Prepending (=.) Without Spaces 3.1.8. Appending (+=) and prepending (=+) With Spaces 3.1.7. Parsing the Base Configuration Metadata 2.2.