Ada-Belgium is pleased to announce its
Ada Developer Room at FOSDEM 2013
(Ada at the Free and Open Source Software Developers' European Meeting)
Sunday 3 February 2013
UniversitÚ Libre de Bruxelles (U.L.B.), Solbosch Campus, Room AW1.120
Avenue Franklin D. Roosevelt Laan 50, B-1050 Brussels, Belgium
Organized in cooperation with Ada-Europe
The Free and Open Source Developers' Meeting (FOSDEM) is an annual
event held in Brussels, Belgium, in February. The 2013 edition
will take place on Saturday the 2nd and Sunday the 3th of February.
Ada-Belgium has organized a series of presentations related to Ada, to
be held in a dedicated Developer Room, on the second day of the event.
Ada is a general-purpose language originally designed for safety-
and mission-critical software engineering. It is used extensively
in air traffic control, rail transportation, aerospace, nuclear,
financial services and medical devices. The new Ada 2012 standard
has been finalized and was published by ISO in December 2012. As with
the Ada 1995 and Ada 2005 standards, the new Ada 2012 standard already
starts to spread thanks to the advent of its first full implementation
which is none other than the GNU Compiler Collection (GNAT).
This DevRoom aims to present the possibilities offered by the Ada
Language (object-oriented, multicore, embedded programming) as well as
some of the many exciting projects using Ada.
Ada Developer Room Presentations (AW1.120, 74 seats)
09:00-09:05 - Welcome
by Dirk Craeynest - Ada-Belgium
Welcome to the Ada Developer Room at FOSDEM 2013, which is organized
by Ada-Belgium in cooperation with Ada-Europe.
Ada-Belgium and Ada-Europe are both non-profit organizations set
to promote the use of Ada, and to disseminate the knowledge of it
into academic, research and industrial establishments in Belgium
and Europe, resp. Ada-Europe has member-organizations, such as
Ada-Belgium, in various countries. More information on this event
is available on the Ada-Belgium web-site (see URL above).
09:05-09:50 - Introduction to Ada for Beginning and Experienced
by Jean-Pierre Rosen - Adalog
Overview of the main features of the Ada language, with special
emphasis on those features that make it especially attractive for
free software development.
Ada is a feature-rich language, but what really makes Ada stand-out
is that the features are nicely integrated towards serving the
goals of software engineering. If you prefer to spend your time
on designing elegant solutions rather than on low-level debugging,
if you think that software should not fail, if you like to build
programs from readily available components that you can trust,
you should really consider Ada!
10:00-10:50 - Tools and Techniques for Higher Reliability Software
by Philippe Waroquiers - Eurocontrol
Eurocontrol provides pan-European Air Traffic Management services
and uses various open source tools to ensure high software quality.
We will discuss the use of gcc, valgrind, Ada and other tools
for the detection of memory management bugs, race conditions
and performance issues. We will cover Valgrind tools and new
functionality in more detail.
11:00-11:50 - Ada on Android
by JosÚ F. Ruiz - AdaCore
This presentation explains and demonstrates how Ada code can be
embedded into Android devices.
The talk will be an introduction to programming Android devices
in Ada. The Android framework can be used to develop a part of the
application (such as the user interface), but you can still benefit
from Ada's reliability and advanced software engineering principles
for the application logic (for example, control algorithms or image
processing). The presentation will describe and demonstrate how
easy it is to follow this development approach with Ada.
12:00-12:50 - Ada Tasking: Multithreading Made Easy
by Ludovic Brenta - Debian
Ada is one of very few programming languages that support
multithreading as part of the language, as opposed to libraries.
As a consequence, the multithreading facilities use simple,
high-level abstractions: tasks and protected objects, rather
than low-level library calls. Ada allows beginners and younger
programmers to write multithreading programs. If you come prepared
with an Ada compiler on your laptop, you can learn by doing in this
interactive, hands-on session, and unleash the full power of your
13:00-14:00 - Lunch Break & Informal Discussion
14:00-14:50 - Ada Steaming Ahead: New 2012 Features
by Jean-Pierre Rosen - Adalog
Ada has a long record of being ahead of its time: Ada 83 had
templates and multithreading, that appeared in other mainstream
languages nearly 15 years later. The latest incarnation of
the language, officially standardized by ISO in December 2012,
continues with this tradition. From programming by contract to
multicore support, with sophisticated memory management schemes,
and more, Ada is steaming ahead of the crowd!
15:00-15:25 - Compile-Time Dimensionality Checking
by JosÚ F. Ruiz - AdaCore
This talk presents the design and usage of a dimensionality checking
system in Ada 2012.
The purpose of dimensional analysis is to verify dimension
consistency within physical relations, preventing errors such as the
loss of the Mars Climate Orbiter because one module used metric units
and another one imperial units. The presentation will describe how
to perform compile-time checks to verify the dimensional consistency
of physical computations, allowing the user to define his own system
15:30-15:55 - Telephone Reception Management with Alice on Pi
by Kim Rostgaard Christensen - AdaHeads K/S
Alice is an Open Source PBX management application aimed at hosted
Taming wild PBXes and meeting the fuzzy real-time requirements of
human impatience are some of the challenges you face, when you build
such systems. Using the Asterisk PBX, the Ada language, and AWS -
the Ada Web Server, we take on the modern web armed with HTML5,
Dart and WebSockets, to make Alice a reliable, commercial service
for customers who consider answering the phone mission critical.
I will present some examples of how Ada has made the construction of
Alice - if not a walk in the park, then at least - reasonably easy
and painless. During the presentation I will have a live example
of Alice answering phones on a Raspberry Pi in front of the audience.
16:00-16:50 - Simplifying the Use of Formal Methods
by Valentine Reboul - AdaCore
The Hi-Lite project - combining testing and verification with
GNATTest and GNATProve.
Verification activities mandated for critical software are essential
to achieve the required level of confidence expected in life-critical
or business-critical software. They are becoming increasingly
costly as, over time, they require the development and maintenance
of a large body of functional and robustness tests on larger and
more complex applications. Formal program verification offers
a way to reduce these costs while providing stronger guarantees
than testing. Addressing verification activities with formal
verification is supported by recent standards such as DO-178C for
software development in avionics.
In the Hi-Lite project, we pursue the integration of formal
verification with testing for projects developed in C or Ada.
We present an open source verification framework based on the GNAT
compiler for Ada, which allows combining the results of testing and
formal verification of Ada programs. We benefit from the recent
update of the Ada language, which includes richer expressions
and contracts on functions. We show that this combination of
verification techniques can be as strong as testing alone, while
allowing the user to choose the most cost-effective technique for
More information on Ada DevRoom
Speakers bios, pointers to relevant information, links to the FOSDEM
site, etc., are available on the Ada-Belgium site at
We invite you to attend some or all of the presentations: they will
be given in English. Everybody interested can attend FOSDEM 2013;
no registration is necessary.
We hope to see many of you there!
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