C++ and Embedded Linux - a perfect match

C++ and Embedded Linux: a perfect matchVinicius Zein | Fundação CERTI

https://br.linkedin.com/in/viniciuszein

Vinicius Tadeu Zein R&D Coordinator @CERTI Foundation

• Responsible for the Embedded Systems team

• More than 10 years developing Embedded Systems

• In companies like Atmel, LG Electronics and CERTI

R&D Institute

Founded in 1984 with the mission to develop technology solutions for products and processes

500 employees

Private, but results are reinvested in R&D

MCTI and SUFRAMA accredited – projects with “Lei de Informática”, “Lei do Bem” and Embrapii

More than 500 clients around the world

The information in this presentation was compiled from sources believed to be reliable for informational purposes only.Content includes opinions, presentations, articles, hyperlinks or other third party content (“Third Party Material”) that is not intended to, nor constitutes an endorsement by CERTI of the author or the Third Party Materials. The content and views within the Third Party Material are solely those of the third party and do not reflect the opinions of CERTI.The opinions expressed in this presentation and on the following slides are solely those of thepresenter and not necessarily those of CERTI. CERTI does not guarantee the accuracy orreliability of the information provided herein.

.Disclaimer

SUMMARY

CHAPTER 1

Embedded Linux

CHAPTER 2

CHAPTER 3

Development tools and debugging

CHAPTER 4

Test frameworksCHAPTER 5

Test driven developmentCHAPTER 6

Final considerations

Embedded Linux

Chapter 1

CAPÍTULO 1 | LINUX EMBARCADO

Telephone exchangesIP Phones and SmartphonesTVs and Set-top boxesPrintersElectronic Control Units for carsCamerasAndroid systems

CHAPTER 1 | EMBEDDED LINUX

C++CHAPTER 2

C++“cee plus plus” CHAPTER 2 Multi-paradigm

Object orientedTemplates, inline functionsMetaprogrammingHigh-performative and powerfullLots of toolsCompatibility with C - just in case ;)STL, Boost, ACEEvolving language

CHAPTER 2 | C++

C++85 style "C with Classes”, C++98, C++03, C++11, C++14, C++17

Don’t loweryour level of abstraction

without a good reason!

Embedded Linux

Perfect match

CHAPTER 2 | C++

DEVELOPMENT TOOLS AND DEBUGGING

CHAPTER 3

CHAPTER 3 | DEVELOPMENT TOOLS AND DEBUGGING

“Making Embedded Linux Easy

Buildroot is a simple, efficient and easy-to-use tool to

generate embedded Linux systems through cross-

compilation.”

Build systems > Buildroot

Build systems > Yocto Project

“It's not an embedded Linux distribution

– it creates a custom one for you”

Build systems >AutoconfRakeBoost.BuildQmakeSconsCMake

IDEs * Code edition and navigation

VimEmacsSublime Text 2 Eclipse CDT

NetbeansSlickEditQtCreatorJetBrains AppCode

If debugging is the process of removing bugs, then programming must be the process of putting them inEdsger Dijkstra

Debugging

LogsCommand Line Interface (CLI)gdb (post morten)gdb + gdbserverdddGoogle BreakPad

For each bug found, a new unit test.

CAPÍTULO 3 | FERRAMENTAS DESENVOLVIMENTO E DEBUGGING

Debugging > GDB

Post mortengdb <program> -c <core_file>bt full -> backtraceprint <variable>frame <frame_id>thread <thread_id>

Debugging > Breakpad

Continuos integration

Other tools > Static annalysis coverity, cppcheckCoverage– ccccValgrind, tcmalloc

Code coverage

Test frameworks for C++

CHAPTER 4

CHAPTER 4 | TEST FRAMEWORKS FOR C++

Unit tests – gtest > Well documentedMultiplatformLinux, Windows, Mac OS XEasy to use, easy to configure1 execution > multiple failures

gmock >Google Mocking Framework for tests in C++

Real targets are not always available

Simulating behaviorCreating emulators

Google Benchmarkhttps://github.com/google/benchmarkFunction benchmarking

Test driven development

CHAPTER 5

CHAPTER 5 | TEST DRIVEN DEVELOPMENT

Final considerations

CHAPTER 6

Use smart pointers

std::shared_ptr, std::scoped_ptr, std::unique_ptr

RAIIRAII

CAPÍTULO 6 | Final considerations

RAIIResource Acquisition Is Initialization

Use a code standardhttp://www.chromium.org/developers/coding-stylehttp://google-styleguide.googlecode.com/svn/trunk/cppguide.xmlhttp://clang.llvm.org/docs/ClangFormat.html

Unit test firstThen code

Prefere

STL/Boost

algorithms

Thanks!Vinicius Zeinvtz@certi.org.b

ReferencesSlide 6 http://events.linuxfoundation.org/sites/events/files/slides/csimmonds-embedded-linux-timeline-2013.pdf

http://ecn.channel9.msdn.com/events/GoingNative12/GN12Cpp11Style.pdf

Slides 24, 25 and 26 https://code.google.com/p/google-breakpad/wiki/GettingStartedWithBreakpad

http://www.pathfindersolns.com/

C++ and Embedded Linux - a perfect match

Software

Windows solution for linux. Windows Solution for Embedded Linux What is the Windows solution for Embedded Linux –Embedded Qt –Embedded gtk –tinyX –Pocket

Embedded Linux Router

Embedded Linux Slides

Status of Embedded Linux Linux Symposium

Embedded Linux size reduction techniques - Bootlin · Embedded Linux Conference 2017 Embedded Linux size reduction techniques Michael Opdenacker Bootlin michael.opdenacker@bootlin.com

Linux & Embedded System

Embedded Linux: Introduction

Embedded Linux Training

Embedded Linux Java

Embedded Linux system development training - Huihoodocs.huihoo.com/embedded-linux/embedded-Linux... · Embedded Linux system development training Thomas Petazzoni ... Don't hesitate

Advanced Embedded Linux

Tuning Embedded Linux -

Embedded Linux Multimedia

Using Embedded Linux for Infrastructure Systems · Using Embedded Linux for Infrastructure Systems Embedded Linux Conference Europe 2014 14 Oct 2014 Yoshitake Kobayashi. Embedded

Embedded Linux training Lab book the packages needed for this lab: Embedded Linux Training lab book Embedded Linux Training lab book

Status of Embedded Linux · Status of Embedded Linux Status of Embedded Linux ... • Tizen = MeeGo + Limo + ... • OpenMobile’s ACL (Application Compatibility

Embedded Linux Pitfalls

embedded Linux and kernel engineering Embedded Linux ......Embedded Linux from scratch in 45 minutes Introduction - Kernel, drivers and embedded Linux - Development, consulting, training

Embedded Linux Conference 2014 · 2016. 7. 6. · Embedded Linux Conference 2014 Porting Linux to a New Architecture Marta Rybczyńska May 1st, 2014 ... Embedded Linux Conference

CE Workgroup Linux Foundation / Embedded Linux …