Legato Application Framework
C C++ Objective-C Python Shell CMake Other
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3rdParty Handle sysroot in findtoolchain script Jun 5, 2018
apps Enable qmiAirVantage on WPx5xx Aug 15, 2018
cmake Handle sysroot in findtoolchain script Jun 5, 2018
components Pass the time/zone/DST information to the OS Aug 9, 2018
drivers Unable to use SPI service (wp85 platform) Jul 16, 2018
framework Fix kernel module parameter in supervisor Aug 15, 2018
interfaces Add new APIs in le_mrc to support PciScan Aug 8, 2018
targetFiles/virt Build httpServer sample app with other sample apps May 30, 2018
targets [DOTA] Add pa_flash based implementation for fwupdate Aug 7, 2018
.gitignore Ignore version.h Aug 2, 2018
.travis.yml Remove clang build from travis Aug 16, 2018
CMakeLists.txt Add samples_X and all_X make targets May 23, 2018
CODE_OF_CONDUCT.md Revising README.md & adding code of conduct May 9, 2018
CONTRIB_COMPANY.md [Docs] Add Company Contribution Agreement Mar 24, 2017
CONTRIB_INDIVIDUAL.md Update email to send contribution agreement Aug 9, 2016
KConfig Import KConfig Makefile targets and initial values Jul 6, 2018
LICENSE.md [Docs] Improve Licensing Content Mar 24, 2017
Makefile Import uLegato pytest framework and initial tests Jul 6, 2018
Makefile.framework Improve rollback detection Jul 12, 2018
Makefile.hostTools Import KConfig Makefile targets and initial values Jul 6, 2018
Makefile.targetTools Enable qmiAirVantage on WPx5xx Aug 15, 2018
README.md [Docs] Point to https://legato.io & https://docs.legato.io May 22, 2018
conftest.py Import uLegato pytest framework and initial tests Jul 6, 2018
default.config Import KConfig Makefile targets and initial values Jul 6, 2018
default.sdef Unable to use SPI service (wp85 platform) Jul 16, 2018
default_readonly.sdef Add Data Mode Control API Oct 25, 2017
legatoTargetConfig.sinc Restructure build to move build vars to .sinc May 10, 2017
localhost.sdef Add Data Mode Control API Oct 25, 2017
platformBuildVars.sinc Provide default DCS PA Oct 17, 2017
pytest.ini Import uLegato pytest framework and initial tests Jul 6, 2018
run-tests Import uLegato pytest framework and initial tests Jul 6, 2018
targetDefs Handle kernelroot in findtoolchain Jul 5, 2018



Build Status

Legato Open Source Project is an initiative by Sierra Wireless Inc. which provides an open, secure and easy to use Application Framework for embedded devices. The project enables developers who are not experienced in traditional embedded programming to participate in the exponential growth of the "Internet of Things". Visit legato.io to learn more or visit the Legato forum.


  • A maintained Long Term Support (LTS) version of Ubuntu
  • Install required packages:
$ sudo apt-get install -y build-essential \
                          python python-jinja2 python-pkg-resources python-git \
                          cmake git libsdl-dev diffstat texinfo gawk chrpath \
                          wget cpio bash ninja-build bc unzip libxml2-utils gcovr \
                          libcurl4-gnutls-dev zlib1g-dev libbz2-dev \
                          bsdiff libssl-dev autoconf automake iputils-ping

Optional packages: openjdk-8-jdk (for Java support, at least Java 8 is required), doxygen graphviz (for doc generation)


Clone from GitHub

Legato uses git-repo as it is distributed as multiple repositories.

  1. Install repo:

(on Ubuntu >= 16.04)

$ sudo apt-get install -y repo

OR (on Ubuntu < 16.04)

$ sudo apt-get install -y phablet-tools


$ wget -O ~/bin/repo https://storage.googleapis.com/git-repo-downloads/repo
$ chmod a+x ~/bin/repo
  1. Clone the environment:
$ mkdir workspace
$ cd workspace
$ repo init -u git://github.com/legatoproject/manifest
$ repo sync

You can also clone a specific release:

$ repo init -u git://github.com/legatoproject/manifest -m legato/releases/16.07.0.xml
$ repo sync

Install the Legato framework on your development PC

  1. Clone it from GitHub or untar a release archive into a directory

  2. cd into that directory

  3. Run make

Configure your bash shell's environment for the Legato application build tools

Source bin/configlegatoenv:

$ . bin/configlegatoenv

OR, run the interactive bash shell bin/legs:

$ bin/legs

Run on Target Devices

Build support for cross-build targets, run make <target>.

For example, to enable support for the Sierra Wireless WP85xx devices, run make wp85.
Of course, each of these depends on the cross-build toolchain for that target, so ensure that you have the appropriate toolchain installed first.

The path to your toolchain and the prefix of the name of the tools in the toolchain are specified using the xxxxxx_TOOLCHAIN_DIR and xxxxxx_TOOLCHAIN_PREFIX environment variables (where xxxxxx is replaced with the target platform's ID, such as WP85).

If your toolchain is installed somewhere other than the default location under /opt/swi, ensure that the appropriate environment variables are set to tell the build tools where to find your toolchain and what its prefix is.
For example, for Sierra Wireless WP85xx devices, WP85_TOOLCHAIN_DIR must be set to the path of the directory that contains the file arm-poky-linux-gnueabi-gcc, and WP85_TOOLCHAIN_PREFIX must be set to arm-poky-linux-gnueabi--.

Following is a list of supported cross-build targets:

Target Description Environment variables
ar7 Sierra Wireless AR755x module AR7_TOOLCHAIN_DIR,AR7_TOOLCHAIN_PREFIX
ar758x Sierra Wireless AR758x module AR758X_TOOLCHAIN_DIR,AR758X_TOOLCHAIN_PREFIX
ar759x Sierra Wireless AR759x module AR759X_TOOLCHAIN_DIR,AR759X_TOOLCHAIN_PREFIX
ar86 Sierra Wireless AR86xx module AR86_TOOLCHAIN_DIR,AR86_TOOLCHAIN_PREFIX
wp85 Sierra Wireless WP85xx module WP85_TOOLCHAIN_DIR,WP85_TOOLCHAIN_PREFIX
wp750x Sierra Wireless WP750x module WP750X_TOOLCHAIN_DIR,WP750X_TOOLCHAIN_PREFIX
wp76xx Sierra Wireless WP76xx module WP76XX_TOOLCHAIN_DIR,WP76XX_TOOLCHAIN_PREFIX
wp77xx Sierra Wireless WP77xx module WP77XX_TOOLCHAIN_DIR,WP77XX_TOOLCHAIN_PREFIX

Directory Structure

The top level directory structure is as follows:

./apps - contains source code for apps.

./bin - created by build system and populated with executable files that run on the development host (the host that ran the build).

./build - contains the results of the build. Will be created by the build system.

./build/tools - contains build tools that are built and then used by the build system on the build host to build other things.

./build/<target> - contains the output of a build for a specific target (e.g., ./build/wp85).

./cmake - contains CMake scripts used by the build system to build samples and unit tests.

./components - contains platform-independent components that are used in apps.

./framework - contains the source code for the Legato application framework itself.

./targetFiles - contains some files for installation on target devices that don't need to be built.

./platformAdaptor - contains components that are specific to certain platforms.

./modules - contains other repositories that are extending Legato.


Once you have completed the first three installation steps above, you will find a set of HTML documentation under the "Documentation" directory.
Point your web browser at Documentation/index.html to view it:

xdg-open Documentatation/index.html

The latest release documentation is available at: https://docs.legato.io/latest/


To uninstall Legato from your development PC:

  • Delete the directory you unzipped Legato under
  • Revert any changes you may have made to your .bashrc, etc. to set up xxxxxx_TOOLCHAIN_DIR environment variables.

_Copyright (C) Sierra Wireless Inc. _