Repo Tool overview

Repo is a repository management tool that is built on top of Git. Repo unifies the many Git repositories when necessary, and automates parts of the development workflow. Repo is not meant to replace Git, only to make it easier to work with Git in the context of development.The repo command is an executable Python script that you can put anywhere in your path. In working with the source files, you will use Repo for across-network operations. For example, with a single Repo command you can download files from multiple repositories into your local working directory.
More details about repo tool is present at
https://source.android.com/source/developing.html

Step 1: Preparing the Build Environment

Install Repo


#Download the Repo script:
$ curl https://storage.googleapis.com/git-repo-downloads/repo > repo
 
#Make it executable:
$ chmod a+x repo
 
#Move it on to your local home directory path:
$ mv repo ~/bin/
 
#Add it to your path
$ PATH=$PATH:~/bin
 
#If it is correctly installed, you should see a Usage message when invoked with the help flag.
$ repo --help

Fetch all sources



Release 2017.1 and above :

#repo init to the project of desire
$ repo init -u git://github.com/Xilinx/yocto-manifests.git -b <current-release>
 
#repo sync to get all sources
$ repo sync
 
#repo start a branch
$ repo start <current-release> --all


Release 2016.3 or below :

#repo init to the project of desire
$ repo init -u git://github.com/Xilinx/yocto-manifests.git -m meta-petalinux.xml -b <current-release>
 
#repo sync to get all sources
$ repo sync
 
#repo start a branch
$ repo start <current-release> --all

where current-release is rel-v2016.3 or rel-v2016.1 etc

Source environment

#source the environment to build using bitbake
$ source setupsdk
# for 2016.1 and 2016.2 release use
$ source pkgsetup

Step 2: Build using bitbake


$ MACHINE=zcu102-zynqmp bitbake petalinux-minimal
Similarly build for other machine (ZC702, ZC706 etc)


  1. Following has to be present in your configuration to use XIlinx SDK toolchain (local.conf or override.conf)
DISTRO = "petalinux"
PACKAGE_CLASSES = "package_rpm"
TCMODE = "external-xilinx"
XILINX_VER_MAIN = "<current-release>"

EXTERNAL_TOOLCHAIN_zynq = "<path-to-xilinx-SDK>/SDK/<current-version>/gnu/aarch32/lin/gcc-arm-linux-gnueabi"

EXTERNAL_TOOLCHAIN_microblaze = "<path-to-xilinx-SDK>/SDK/<current-version>/gnu/microblaze/linux_toolchain/lin32_le"

EXTERNAL_TOOLCHAIN_aarch64 = "<path-to-xilinx-SDK>/SDK/<current-version>/gnu/aarch64/lin/aarch64-linux"

XILINX_SDK_TOOLCHAIN = "<path-to-xilinx-SDK>/SDK/<current-version>"

<current-version> will be 2016.3, 2016.1 etc
<current-release> will be 2016.3, 2016.1 etc

Related Articles

Xilinx Yocto