What Is Yocto Used For?

What does BitBake do?

BitBake is a make-like build tool with the special focus of distributions and packages for embedded Linux cross compilation, although it is not limited to that.

Recipes consist of the source URL (http, https, ftp, cvs, svn, git, local file system) of the package, dependencies and compile or install options.


Is yocto a Linux distribution?

The Yocto Project is a Linux Foundation collaborative open source project whose goal is to produce tools and processes that enable the creation of Linux distributions for embedded and IoT software that are independent of the underlying architecture of the embedded hardware.

How do I add packages to my yocto build?

Adding the Recipe to your ImageAdd Layer Path. After running source oe-init-build-env, the file location of your layer should be added to your bblayers.conf file. … Append the Package. Within the build/conf/local.conf file, add this line anywhere: … Add Package to Image Recipe. … Run bitbake Command. … Types of Pre-Built Images.

What are .BB files?

1.3. BitBake Recipes, which are denoted by the file extension . bb , are the most basic metadata files. These recipe files provide BitBake with the following: Descriptive information about the package. The version of the recipe.

How do I install BitBake on Ubuntu?

Run the commands:$ cd boost_1_38_0.$ ./configure.$ make install.$ sudo apt-get install python.$ sudo apt-get install make.$ sudo apt-get install subversion.$ sudo apt-get install psycho OR.$ sudo python setup.py install.More items…•

How do you use a Yocto Project?

Set Up the Poky Container to Use the Yocto Project: Go to https://github.com/crops/poky-container/blob/master/README.md and follow the directions to set up the Poky container on your build host. Once you complete the setup instructions for your machine, you need to get a copy of the poky repository on your build host.

What is yocto image?

The Yocto Project is an open-source collaboration project focused on embedded Linux developers. Amongst other things, the Yocto Project uses the Poky build system to construct complete Linux images.

How do I speed up my yocto?

Howto speed up Yocto buildRecommended free disk space: about 100 Gbytes.Put the build directory on its own disk. … Use the ext4 filesystem for the build disk.Turn off journaling for ext4 (“$ tune2fs -O ^has_journal “)Mount using the options “noatime,barrier=0,commit=6000″Use a tmpfs for /tmp.

What is Bbappend?

bbappend file is to reference a modified version of the startup script to be copied in place of the original without changing the base openembedded-core and/or poky environments. … and then attempts to search through the poky directory for the missing files rather than in my project directory.

What is yocto toolchain?

An architecture-specific cross-toolchain and matching sysroot both built by the OpenEmbedded build system. The toolchain and sysroot are based on a Metadata configuration and extensions, which allows you to cross-develop on the host machine for the target hardware. The Eclipse IDE Yocto Plug-in.

How do I find my yocto version?

2 AnswersTo know the yocto kernel version you are using, just type bitbake -e virtual/kernel | grep “^PV”And to know the kernel you are using, type bitbake -e virtual/kernel | grep “^PN”

What is yocto build?

Structure of the Yocto build system The Yocto build system basically comprises recipes, layers, and configuration files that are parsed by the Bitbake tool to produce a Linux file system image that can later be run on the target hardware. Recipes are the most common file type in a Yocto build description.

What is yocto layer?

meta-data means conf, classes, and recipes. e.g: meta-fsl-arm is a meta-layer which contains the meta data(configuration and mechines classes and all recipes ) meta-phytec is a layer which contains the meta-data(like conf files, classes, and all recipes)

What is build system in Linux?

The Linux Kernel Build System has four main components: Config symbols: compilation options that can be used to compile code conditionally in source files and to decide which objects to include in a kernel image or its modules. … config file for you.