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This is a layer to provide ROS in an openembedded linux system.
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Currently, this layer is still under development and not fully functional.
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AUTHOR
Lukas Bulwahn <lukas.bulwahn@oss.bmw-carit.de>
HOW TO CONTRIBUTE
We are still working on this development and are interested in other use cases.
If you are interested in this project, please contact us via email.
The more people are interested, the more we will be pushing this project.
If you want to contribute, please contact us and we can discuss open issues
and how we could join forces.
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PURPOSE of this document:
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This document describes
- the installation, use and content of the git repository meta_ros
- milestones, the open issues and how some issues have been resolved.
- license information and origin of redistributed files
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INSTALLATION:
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The repository only contains a layer for ros that builds on top of the existing openembedded core layer.
You can download the yocto poky-danny-8.0 archive, but then you should update the distutils.bbclass,
and maybe also the url of libarchive.
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To install, unpack http://downloads.yoctoproject.org/releases/yocto/yocto-1.3/poky-danny-8.0.tar.bz2 into a directory <dir>.
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In the directory of the layers, clone this repository into the subdirectory meta-ros.
Add the meta-ros directory to your local bblayers.conf file.
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USE for native compilation on the VM (milestone M1):
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The commands
source oe-init-build-env
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bitbake core-image-ros
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builds our specifically configured linux image.
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With `runqemu qemux86-64 qemuparams="-m 2048" core-image-ros` the linux image runs within a virtual machine with 2048 MB of memory.
We assumed that this is running on and compiled for an x86-64 architecture. For other architectures, some settings must be adjusted.
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On the host system, run fetch_ros.sh in a fresh directory, e.g. ~/ros-repos/.
It clones all ros repositories locally.
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After starting the virtual machine, copy the installation script from the host system to the home directory with scp.
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scp lukas@192.168.7.1:/<location of repository>/install.sh .
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Adjust configuration in install.sh and then run
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sh ./install.sh
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The installation script installs ros and starts roscore.
USE for cross-compilation (milestone M2):
source oe-init-build-env
bitbake ros
momentarily fails at some point (see CURRENT STATE)
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CONTENT of the repository:
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README this README file, which contains all important information
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COPYING.MIT
conf/layer.conf configuration file for this layer
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install.sh installation script that runs within the virtual machine
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recipes-core/images/core-image-ros.bb recipe for our own core image (derived from core-image-minimal)
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recipes-devtools/python/python-pyyaml_3.10.bb recipe for pyyaml python library
recipes-devtools/python/python-rospkg_1.0.15.bb recipe for rospkg tool
recipes-devtools/python/python-empy_3.3.bb recipe for empy python library
recipes-devtools/python/python-nose_1.2.1.bb recipe for nose python library
recipes-devtools/python/python-rosinstall_0.6.21.bb recipe for rosinstall tool
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recipes-devtools/python/python-vcstools_0.1.26.bb recipe required by rosinstall tool
recipes-devtools/python/python-dateutil_1.5.bb recipe required by rosinstall tool
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recipes-devtools/python/python-pyyaml-native_3.10.bb native recipes for cross-compilation
recipes-devtools/python/python-rospkg-native_1.0.15.bb
recipes-devtools/python/python-empy-native_3.3.bb
recipes-devtools/python/python-nose-native_1.2.1.bb
recipes-devtools/log4cxx recipes and patches for log4cxx 0.10.0
recipes-devtools/log4cxx/log4cxx_0.10.0.bb
recipes-devtools/log4cxx/log4cxx/0001-log4cxx_0-10-0_add-missing-includes.patch
recipes-devtools/log4cxx/log4cxx/0003-log4cxx-0.10.0-add_stdio_header.patch
recipes-devtools/log4cxx/log4cxx/0002-Remove-duplicates-from-makefile.patch
recipes-ros/ros/ros.bb recipe for ros (incomplete)
recipes-ros/ros/ros/fuerte-ros-base.rosinstall the .rosinstall file to download ros
classes/distutils.bbclass distutils recipe originated from oe-core (patch submitted to oe-core and accepted)
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classes/setuptools.bbclass adjustments for python setuptools
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MILESTONES
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M1: basic image with dev-tools (make, cmake, ...) and ROS compiles natively in the virtual machine
M2: Linux+ROS System can be built completely with bitbake (no compilation and installing in the virtual machine)
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M3: Linux+ROS System with configured kernel (e.g. RT-Linux, System-D) that meets real-time and safety requirements
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RESOLVED ISSUES for M1:
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- recipes for python-pyyaml and python-rospkg create invalid shell scripts (header line refers to python-native instead of python.)
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RESOLVED by patching distutils class--has been committed to oe-core.
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- recipe for log4cxx requires another patch.
RESOLVED by providing patch 0003 in recipe
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- Compilation with make fails in the virtual machine because of insufficient memory during compilation.
RESOLVED by increasing memory.
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- rospkg modules are not found when runnning python.
RESOLVED by using the dist_utils argument to use traditional packaging mechanism and avoid .egg files at all (suggested by Ross Burton)
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OPEN ISSUES for M1:
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- python-setuptools requires some python-modules at run-time.
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TEMPORARILY RESOLVED by adding all python-modules in the image
SHOULD BE RESOLVED by creating an appropriate patch for python-setuptools and contributing to openembedded-core
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OPEN ISSUES for M2:
- understand what rosinstall actually does
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- how fetch from multiple git repositories in one recipe?
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CURRENT STATE:
`bitbake ros` fails with:
> CMake Error at catkin/cmake/find_program_required.cmake:5 (message):
> check_test_ran.py not found
> Call Stack (most recent call first):
> ../catkin/CMakeFiles/tests.cmake:31 (find_program_required)
> ../catkin/CMakeFiles/tests.cmake:41 (catkin_initialize_tests)
> catkin/cmake/all.cmake:54 (include)
> catkin/CMakeLists.txt:12 (include)
>
>
>
> -- Configuring incomplete, errors occurred!
>
>
> ERROR: Function failed: do_configure (see /home/lukas/NEW/poky-danny-8.0/build/tmp/work/i586-poky-linux/ros-1.0-r0/temp/log.do_configure.9702 for further information)
> ERROR: Logfile of failure stored in: /home/lukas/NEW/poky-danny-8.0/build/tmp/work/i586-poky-linux/ros-1.0-r0/temp/log.do_configure.9702
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LICENSE
All metadata is MIT licensed unless otherwise stated. Source code included
in tree for individual recipes is under the LICENSE stated in each recipe
(.bb file) unless otherwise stated.
This README document is Copyright (C) 2012 BMW Car IT GmbH.
REDISTRIBUTIONS
The log4cxx recipe originated from the recipe in the OpenEmbedded (Classic) Development
(cf. http://cgit.openembedded.org/openembedded/tree/recipes/log4cxx)
licensed with the MIT License.
The core-image-ros recipe originated from the core-image-minimal recipe in OpenEmbedded Core
(cf. http://cgit.openembedded.org/openembedded-core/tree/meta/recipes-core/images/core-image-minimal.bb)
licensed with the MIT License.
The distutils class originated the distutils class in OpenEmbedded Core
(cf. http://cgit.openembedded.org/openembedded-core/tree/meta/classes/distutils.bbclass)
licensed with the MIT License.
The modified files are redistributed here under the same MIT License.
