The Openwrt Embedded Development Framework
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Debian Developer's Reference Version 12.0, Released on 2021-09-01
Debian Developer’s Reference Release 12.0 Developer’s Reference Team 2021-09-01 CONTENTS 1 Scope of This Document 3 2 Applying to Become a Member5 2.1 Getting started..............................................5 2.2 Debian mentors and sponsors......................................6 2.3 Registering as a Debian member.....................................6 3 Debian Developer's Duties 9 3.1 Package Maintainer's Duties.......................................9 3.1.1 Work towards the next stable release............................9 3.1.2 Maintain packages in stable .................................9 3.1.3 Manage release-critical bugs.................................. 10 3.1.4 Coordination with upstream developers............................ 10 3.2 Administrative Duties.......................................... 10 3.2.1 Maintaining your Debian information............................. 11 3.2.2 Maintaining your public key.................................. 11 3.2.3 Voting.............................................. 11 3.2.4 Going on vacation gracefully.................................. 12 3.2.5 Retiring............................................. 12 3.2.6 Returning after retirement................................... 13 4 Resources for Debian Members 15 4.1 Mailing lists............................................... 15 4.1.1 Basic rules for use....................................... 15 4.1.2 Core development mailing lists................................. 15 4.1.3 Special lists........................................... 16 4.1.4 Requesting new -
Beginning Portable Shell Scripting from Novice to Professional
Beginning Portable Shell Scripting From Novice to Professional Peter Seebach 10436fmfinal 1 10/23/08 10:40:24 PM Beginning Portable Shell Scripting: From Novice to Professional Copyright © 2008 by Peter Seebach All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage or retrieval system, without the prior written permission of the copyright owner and the publisher. ISBN-13 (pbk): 978-1-4302-1043-6 ISBN-10 (pbk): 1-4302-1043-5 ISBN-13 (electronic): 978-1-4302-1044-3 ISBN-10 (electronic): 1-4302-1044-3 Printed and bound in the United States of America 9 8 7 6 5 4 3 2 1 Trademarked names may appear in this book. Rather than use a trademark symbol with every occurrence of a trademarked name, we use the names only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark. Lead Editor: Frank Pohlmann Technical Reviewer: Gary V. Vaughan Editorial Board: Clay Andres, Steve Anglin, Ewan Buckingham, Tony Campbell, Gary Cornell, Jonathan Gennick, Michelle Lowman, Matthew Moodie, Jeffrey Pepper, Frank Pohlmann, Ben Renow-Clarke, Dominic Shakeshaft, Matt Wade, Tom Welsh Project Manager: Richard Dal Porto Copy Editor: Kim Benbow Associate Production Director: Kari Brooks-Copony Production Editor: Katie Stence Compositor: Linda Weidemann, Wolf Creek Press Proofreader: Dan Shaw Indexer: Broccoli Information Management Cover Designer: Kurt Krames Manufacturing Director: Tom Debolski Distributed to the book trade worldwide by Springer-Verlag New York, Inc., 233 Spring Street, 6th Floor, New York, NY 10013. -
Leitfaden Für Debian-Betreuer
Leitfaden für DebianBetreuer Osamu Aoki, Helge Kreutzmann, and Mechtilde Stehmann August 27, 2021 Leitfaden für DebianBetreuer by Osamu Aoki, Helge Kreutzmann, and Mechtilde Stehmann Copyright © 20142020 Osamu Aoki Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ”Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED ”AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IM PLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Diese Anleitung wurde mit den nachfolgenden Dokumenten als Referenz erstellt: • »Making a Debian Package (AKA the Debmake Manual)«, Copyright © 1997 Jaldhar Vyas. • »The NewMaintainer’s Debian Packaging Howto«, Copyright © 1997 Will Lowe. • »DebianLeitfaden für Neue Paketbetreuer«, Copyright © 19982002 Josip Rodin, 20052017 Osamu Aoki, 2010 Craig Small und 2010 Raphaël Hertzog. Die neuste Version dieser Anleitung sollte • im Paket debmakedoc und • auf der DebianDokumentationsWebsite verfügbar sein. -
Riscv-Software-Stack-Tutorial-Hpca2015
Software Tools Bootcamp RISC-V ISA Tutorial — HPCA-21 08 February 2015 Albert Ou UC Berkeley [email protected] Preliminaries To follow along, download these slides at http://riscv.org/tutorial-hpca2015.html 2 Preliminaries . Shell commands are prefixed by a “$” prompt. Due to time constraints, we will not be building everything from source in real-time. - Binaries have been prepared for you in the VM image. - Detailed build steps are documented here for completeness but are not necessary if using the VM. Interactive portions of this tutorial are denoted with: $ echo 'Hello world' . Also as a reminder, these slides are marked with an icon in the upper-right corner: 3 Software Stack . Many possible combinations (and growing) . But here we will focus on the most common workflows for RISC-V software development 4 Agenda 1. riscv-tools infrastructure 2. First Steps 3. Spike + Proxy Kernel 4. QEMU + Linux 5. Advanced Cross-Compiling 6. Yocto/OpenEmbedded 5 riscv-tools — Overview “Meta-repository” with Git submodules for every stable component of the RISC-V software toolchain Submodule Contents riscv-fesvr RISC-V Frontend Server riscv-isa-sim Functional ISA simulator (“Spike”) riscv-qemu Higher-performance ISA simulator riscv-gnu-toolchain binutils, gcc, newlib, glibc, Linux UAPI headers riscv-llvm LLVM, riscv-clang submodule riscv-pk RISC-V Proxy Kernel (riscv-linux) Linux/RISC-V kernel port riscv-tests ISA assembly tests, benchmark suite All listed submodules are hosted under the riscv GitHub organization: https://github.com/riscv 6 riscv-tools — Installation . Build riscv-gnu-toolchain (riscv*-*-elf / newlib target), riscv-fesvr, riscv-isa-sim, and riscv-pk: (pre-installed in VM) $ git clone https://github.com/riscv/riscv-tools $ cd riscv-tools $ git submodule update --init --recursive $ export RISCV=<installation path> $ export PATH=${PATH}:${RISCV}/bin $ ./build.sh . -
Operating Systems and Applications for Embedded Systems >>> Toolchains
>>> Operating Systems And Applications For Embedded Systems >>> Toolchains Name: Mariusz Naumowicz Date: 31 sierpnia 2018 [~]$ _ [1/19] >>> Plan 1. Toolchain Toolchain Main component of GNU toolchain C library Finding a toolchain 2. crosstool-NG crosstool-NG Installing Anatomy of a toolchain Information about cross-compiler Configruation Most interesting features Sysroot Other tools POSIX functions AP [~]$ _ [2/19] >>> Toolchain A toolchain is the set of tools that compiles source code into executables that can run on your target device, and includes a compiler, a linker, and run-time libraries. [1. Toolchain]$ _ [3/19] >>> Main component of GNU toolchain * Binutils: A set of binary utilities including the assembler, and the linker, ld. It is available at http://www.gnu.org/software/binutils/. * GNU Compiler Collection (GCC): These are the compilers for C and other languages which, depending on the version of GCC, include C++, Objective-C, Objective-C++, Java, Fortran, Ada, and Go. They all use a common back-end which produces assembler code which is fed to the GNU assembler. It is available at http://gcc.gnu.org/. * C library: A standardized API based on the POSIX specification which is the principle interface to the operating system kernel from applications. There are several C libraries to consider, see the following section. [1. Toolchain]$ _ [4/19] >>> C library * glibc: Available at http://www.gnu.org/software/libc. It is the standard GNU C library. It is big and, until recently, not very configurable, but it is the most complete implementation of the POSIX API. * eglibc: Available at http://www.eglibc.org/home. -
Linux Journal | February 2016 | Issue
™ A LOOK AT KDE’s KStars Astronomy Program Since 1994: The Original Magazine of the Linux Community FEBRUARY 2016 | ISSUE 262 | www.linuxjournal.com + Programming Working with Command How-Tos Arguments in Your Program a Shell Scripts BeagleBone Interview: Katerina Black Barone-Adesi on to Help Brew Beer Developing the Snabb Switch Network Write a Toolkit Short Script to Solve a WATCH: ISSUE Math Puzzle OVERVIEW V LJ262-February2016.indd 1 1/21/16 5:26 PM NEW! Agile Improve Product Business Development Processes with an Enterprise Practical books Author: Ted Schmidt Job Scheduler for the most technical Sponsor: IBM Author: Mike Diehl Sponsor: people on the planet. Skybot Finding Your DIY Way: Mapping Commerce Site Your Network Author: to Improve Reuven M. Lerner Manageability GEEK GUIDES Sponsor: GeoTrust Author: Bill Childers Sponsor: InterMapper Combating Get in the Infrastructure Fast Lane Sprawl with NVMe Author: Author: Bill Childers Mike Diehl Sponsor: Sponsor: Puppet Labs Silicon Mechanics & Intel Download books for free with a Take Control Linux in simple one-time registration. of Growing the Time Redis NoSQL of Malware http://geekguide.linuxjournal.com Server Clusters Author: Author: Federico Kereki Reuven M. Lerner Sponsor: Sponsor: IBM Bit9 + Carbon Black LJ262-February2016.indd 2 1/21/16 5:26 PM NEW! Agile Improve Product Business Development Processes with an Enterprise Practical books Author: Ted Schmidt Job Scheduler for the most technical Sponsor: IBM Author: Mike Diehl Sponsor: people on the planet. Skybot Finding Your DIY Way: Mapping Commerce Site Your Network Author: to Improve Reuven M. Lerner Manageability GEEK GUIDES Sponsor: GeoTrust Author: Bill Childers Sponsor: InterMapper Combating Get in the Infrastructure Fast Lane Sprawl with NVMe Author: Author: Bill Childers Mike Diehl Sponsor: Sponsor: Puppet Labs Silicon Mechanics & Intel Download books for free with a Take Control Linux in simple one-time registration. -
Compiler Construction
Compiler Construction Chapter 11 Compiler Construction Compiler Construction 1 A New Compiler • Perhaps a new source language • Perhaps a new target for an existing compiler • Perhaps both Compiler Construction Compiler Construction 2 Source Language • Larger, more complex languages generally require larger, more complex compilers • Is the source language expected to evolve? – E.g., Java 1.0 ! Java 1.1 ! . – A brand new language may undergo considerable change early on – A small working prototype may be in order – Compiler writers must anticipate some amount of change and their design must therefore be flexible – Lexer and parser generators (like Lex and Yacc) are therefore better than hand- coding the lexer and parser when change is inevitable Compiler Construction Compiler Construction 3 Target Language • The nature of the target language and run-time environment influence compiler construction considerably • A new processor and/or its assembler may be buggy Buggy targets make it difficult to debug compilers for that target! • A successful source language will persist over several target generations – E.g., 386 ! 486 ! Pentium ! . – Thus the design of the IR is important – Modularization of machine-specific details is also important Compiler Construction Compiler Construction 4 Compiler Performance Issues • Compiler speed • Generated code quality • Error diagnostics • Portability • Maintainability Compiler Construction Compiler Construction 5 Compiler Speed • Reduce the number of modules • Reduce the number of passes Perhaps generate machine -
A Model-Driven Development and Verification Approach
A MODEL-DRIVEN DEVELOPMENT AND VERIFICATION APPROACH FOR MEDICAL DEVICES by Jakub Jedryszek B.S., Wroclaw University of Technology, Poland, 2012 B.A., Wroclaw University of Economics, Poland, 2012 A THESIS submitted in partial fulfillment of the requirements for the degree MASTER OF SCIENCE Department of Computing and Information Sciences College of Engineering KANSAS STATE UNIVERSITY Manhattan, Kansas 2014 Approved by: Major Professor John Hatcliff Abstract Medical devices are safety-critical systems whose failure may put human life in danger. They are becoming more advanced and thus more complex. This leads to bigger and more complicated code-bases that are hard to maintain and verify. Model-driven development provides high-level and abstract description of the system in the form of models that omit details, which are not relevant during the design phase. This allows for certain types of verification and hazard analysis to be performed on the models. These models can then be translated into code. However, errors that do not exist in the models may be introduced during the implementation phase. Automated translation from verified models to code may prevent to some extent. This thesis proposes approach for model-driven development and verification of medi- cal devices. Models are created in AADL (Architecture Analysis & Design Language), a language for software and hardware architecture modeling. AADL models are translated to SPARK Ada, contract-based programming language, which is suitable for software veri- fication. Generated code base is further extended by developers to implement internals of specific devices. Created programs can be verified using SPARK tools. A PCA (Patient Controlled Analgesia) pump medical device is used to illustrate the primary artifacts and process steps. -
Compiling C Programs
CSCI 2132: Software Development Lab 6: Exploring bash and C Compilation Synopsis In this lab, you will: • Customize the behaviour your bash shell • Write and compile some simple C programs • Practice the edit-compile-fix cycle using emacs and the shell • Learn to patch programs using diff and patch Contents Overview......................................................................................................2 Step 1: Login and lab setup.................................................................................3 Step 2: The name of your shell.............................................................................3 Step 3: The .bashrc file.....................................................................................3 Step 4: Customize rm ........................................................................................4 Optional Step: Install bashrc.new as your new .bashrc file............................................7 Step 5: Edit .profile .......................................................................................8 Optional Step: Install profile.new as your new .profile file.......................................... 10 Step 6: Write a simple C program.......................................................................... 11 Step 7: Explore exit codes................................................................................... 12 Step 8: diff .................................................................................................. 14 Step 9: patch................................................................................................ -
Linux Everywhere a Look at Linux Outside the World of Desktops
Linux Everywhere A look at Linux outside the world of desktops CIS 191 Spring 2012 – Guest Lecture by Philip Peng Lecture Outline 1. Introduction 2. Different Platforms 3. Reasons for Linux 4. Cross-compiling 5. Case Study: iPodLinux 6. Questions 2 What’s in common? 3 All your hardware are belong to us • Linux is everywhere – If its programmable, you can put Linux on it! – Yes, even a microwave CES 2010, microwave running Android: http://www.handlewithlinux.com/linux-washing-cooking 4 Servers • What servers use – Stability, security, free – Examples: ◦ CentOS ◦ Debian ◦ Red Hat 5 Desktop • What you use – Free Windows/Mac alternative – Examples: ◦ Ubuntu ◦ Fedora ◦ PCLinuxOS 6 Gaming Devices • What (white-hat) hackers do – To run “homebrew” software – Examples: ◦ PS3, Wii, XBOX ◦ PS2, GameCube ◦ Dreamcast ◦ PSP, DS ◦ Open Pandora, GP2X 7 Mobile Devices • What distributors are developing – Community contribution – Examples ◦ Android ◦ Maemo/MeeGo/Tizen ◦ Openmoko 8 Embedded Devices • What embedded hardware run – Small footprint, dev tools – Examples ◦ RTLinux (real-time) ◦ μClinux (no MMU) ◦ Ångström (everything) 9 Why? 10 Free! • Free! – As in freedom, i.e. open source – As in beer, i.e. vs paid upgrades 11 Homebrew! • Run own software – Your hardware your software? 12 Support! • Community contribution – “For the greater good” (i.e. users) – Everyone contributes ◦ Specialists from all over the world – Existing hardware support ◦ Many already supported computer architecture ◦ Modify existing drivers 13 Lots of support! 14 Why not? • Because we can – If its hackable, it can run Linux 15 How? • How do we get Linux running on XXX? • Port: A version of software modified to run on a different target platform – The PS3 port of Fedora is a modified build of Fedora compiled to run on the PS3 architecture – e.g. -
Distributed Revision Control with Mercurial
Distributed revision control with Mercurial Bryan O’Sullivan Copyright c 2006, 2007 Bryan O’Sullivan. This material may be distributed only subject to the terms and conditions set forth in version 1.0 of the Open Publication License. Please refer to Appendix D for the license text. This book was prepared from rev 028543f67bea, dated 2008-08-20 15:27 -0700, using rev a58a611c320f of Mercurial. Contents Contents i Preface 2 0.1 This book is a work in progress ...................................... 2 0.2 About the examples in this book ..................................... 2 0.3 Colophon—this book is Free ....................................... 2 1 Introduction 3 1.1 About revision control .......................................... 3 1.1.1 Why use revision control? .................................... 3 1.1.2 The many names of revision control ............................... 4 1.2 A short history of revision control .................................... 4 1.3 Trends in revision control ......................................... 5 1.4 A few of the advantages of distributed revision control ......................... 5 1.4.1 Advantages for open source projects ............................... 6 1.4.2 Advantages for commercial projects ............................... 6 1.5 Why choose Mercurial? .......................................... 7 1.6 Mercurial compared with other tools ................................... 7 1.6.1 Subversion ............................................ 7 1.6.2 Git ................................................ 8 1.6.3 -
Embedded Linux Device Driver Development Sébastien Bilavarn
Embedded Linux Device driver development Sébastien Bilavarn Polytech’Nice Sophia - Département Electronique - Université de Nice Sophia Antipolis - S. Bilavarn - 1 - Outline Ch1 – Introduction to Linux Ch2 – Linux kernel overview Ch3 – Linux for Embedded Systems Ch4 – Embedded Linux distributions Ch5 – Case study: Xilinx PowerPC Linux Ch5 bis – Case study: Xilinx Zynq-7000 Linux Ch6 – Device driver development Polytech’Nice Sophia - Département Electronique - Université de Nice Sophia Antipolis - S. Bilavarn - 2 - Linux for Embedded Systems Introduction to Embedded Linux Key features Embedded Linux development Linux kernel development Polytech’Nice Sophia - Département Electronique - Université de Nice Sophia Antipolis - S. Bilavarn - 3 - Embedded Linux What is Embedded Linux ? Strictly speaking Embedded Linux is an operating system based on Linux and adapted specifically to the constraints of embedded systems. Unlike standard versions of Linux for Personal Computers, embedded Linux is designed for systems with limited resources Memory: few RAM, sometimes no Memory Management Unit (MMU) Storage: Flash instead of hard disk drive Since embedded systems are often designed for domain specific purposes and specific target platforms, they use kernel versions that are optimized for a given context of application. This results in different Linux kernel variants that are also called Linux distributions Polytech’Nice Sophia - Département Electronique - Université de Nice Sophia Antipolis - S. Bilavarn - 4 - Embedded Linux What is embedded Linux ? Embedded Linux is used in embedded systems such as mobile phones, personal digital assistants (PDA), media players set-top boxes, and other consumer electronics devices networking equipment machine control, industrial automation navigation equipment medical instruments Key features runs in a small embedded system, typically booting out of Flash, no hard disk drive, no full-size video display, and take far less than 2 minutes to boot up, sometimes supports real- time tasks.