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Course Outline

Introduction

  • History of Unix/Linux
  • Free Software
  • Unix Philosophy

HOST PLAYGROUND

  • Exploring GNU/Linux
    • Architecture
    • Shell
    • Permissions
    • FHS (File Hierarchy Standard)
    • Hard and soft links
    • Real and effective UID/GID
    • Scheduler
    • Process/Task/Thread
    • IPC (Inter-Process Communication) - Simple and Advanced
      • Pipes
      • Signals
      • Message Queues
      • Semaphores
      • Shared Memory
      • Sockets
      • Select/Poll
    • IPC techniques to avoid
  • Host Linux Setup
    • Yocto/ELDK (cross/target tools, libraries, packages)
    • Terminal Emulation
    • Servers (DHCP, TFTP, NFS)

TARGET PLAYGROUND

  • Files required to run on the board
    • JTAG/BDI configuration
    • u-boot (checkout, config, build)
    • Kernel (checkout, config, build)
    • Root filesystem
    • Flat Device Tree
  • Building and executing relevant components on the target board
  • Various root filesystems
    • CRAMFS
    • Ramdisk
    • MTD
    • JFFS2
    • roEXT2
    • UBI
  • Building and executing relevant components on the target board
  • Comparison of root file systems
  • Debugging
    • Simple tools
    • Local/Remote
    • User/Kernel
    • GDB
    • GDBserver
    • JTAG/BDI (optional)
  • Profiling
    • gprof
    • gcov
    • oprofile

REAL-TIME

  • Prerequisites
    • Interrupts
    • Reentrant code
  • Real-time Linux
    • Explicit and implicit preemption points
    • Real-time preemption patch
    • Fully preemptive kernel
    • Hard real-time extensions
  • Adeos/Xenomai
    • Adeos patch
    • Xenomai
    • Apply patch/configure/build kernel
    • Run on the board

SOFTWARE RELEASE

  • Administration
  • Development
  • Reproducing a software release

MISCELLANEOUS

  • Getopt
  • Endianness
  • Cheat sheets

Except where otherwise noted, content on this course outline is licensed under Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0).

Requirements

  • Basic familiarity with using a GNU/Linux system (e.g., Ubuntu) as an end-user in user space
  • Basic familiarity with a command-line shell
  • Basic knowledge of user-space/application development on GNU/Linux
  • Basic understanding of embedded processors and development boards
  • Basic C programming knowledge
  • ...or simply the courage to learn the above
 35 Hours

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