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Mastering Embedded Linux Programming - Third Edition

You're reading from  Mastering Embedded Linux Programming - Third Edition

Product type Book
Published in May 2021
Publisher Packt
ISBN-13 9781789530384
Pages 758 pages
Edition 3rd Edition
Languages
Concepts
Authors (2):
Frank Vasquez Frank Vasquez
Profile icon Frank Vasquez
LinkedIn
Frank Vasquez is an independent software consultant specializing in consumer electronics. He has over a decade of experience designing and building embedded Linux systems. During that time, he has shipped numerous devices including a rackmount DSP audio server, a diver-held sonar camcorder, and a consumer IoT hotspot. Before his career as an embedded Linux engineer, Frank was a database kernel developer at IBM where he worked on DB2. He lives in Silicon Valley.
See other products by Frank Vasquez
Chris Simmonds Chris Simmonds
Profile icon Chris Simmonds
LinkedIn
Chris Simmonds is a software consultant and trainer living in southern England. He has almost two decades of experience in designing and building open-source embedded systems. He is the founder and chief consultant at 2net Ltd, which provides professional training and mentoring services in embedded Linux, Linux device drivers, and Android platform development. He has trained engineers at many of the biggest companies in the embedded world, including ARM, Qualcomm, Intel, Ericsson, and General Dynamics. He is a frequent presenter at open source and embedded conferences, including the Embedded Linux Conference and Embedded World.
See other products by Chris Simmonds
View More author details

Table of Contents (27) Chapters

Preface Section 1: Elements of Embedded Linux
Chapter 1: Starting Out Chapter 2: Learning about Toolchains Chapter 3: All about Bootloaders Chapter 4: Configuring and Building the Kernel Chapter 5: Building a Root Filesystem Chapter 6: Selecting a Build System Chapter 7: Developing with Yocto Chapter 8: Yocto Under the Hood Section 2: System Architecture and Design Decisions
Chapter 9: Creating a Storage Strategy Chapter 10: Updating Software in the Field Chapter 11: Interfacing with Device Drivers Chapter 12: Prototyping with Breakout Boards Chapter 13: Starting Up – The init Program Chapter 14: Starting with BusyBox runit Chapter 15: Managing Power Section 3: Writing Embedded Applications
Chapter 16: Packaging Python Chapter 17: Learning about Processes and Threads Chapter 18: Managing Memory Section 4: Debugging and Optimizing Performance
Chapter 19: Debugging with GDB Chapter 20: Profiling and Tracing Chapter 21: Real-Time Programming Other Books You May Enjoy

Booting the kernel

Booting Linux is highly device-dependent. In this section, I will show you how it works for the Raspberry Pi 4, BeagleBone Black, and QEMU. For other target boards, you must consult the information from the vendor or from the community project, if there is one.

At this point, you should have the kernel image files and the device tree blobs for the Raspberry Pi 4, BeagleBone Black, and QEMU.

Booting the Raspberry Pi 4

Raspberry Pis use a proprietary bootloader provided by Broadcom instead of U-Boot. Unlike previous Raspberry Pi models, the Raspberry Pi 4's bootloader resides on an onboard SPI EEPROM rather than on a microSD card. We still need to put the kernel image and device tree blobs for the Raspberry Pi 4 on a microSD to boot our 64-bit kernel.

To begin, you need a microSD card with a FAT32 boot partition large enough to hold the necessary kernel build artifacts. The boot partition needs to be the first partition on the microSD card. A partition...

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Authors (2)

Left arrow icon
Profile icon Frank Vasquez
LinkedIn
Frank Vasquez is an independent software consultant specializing in consumer electronics. He has over a decade of experience designing and building embedded Linux systems. During that time, he has shipped numerous devices including a rackmount DSP audio server, a diver-held sonar camcorder, and a consumer IoT hotspot. Before his career as an embedded Linux engineer, Frank was a database kernel developer at IBM where he worked on DB2. He lives in Silicon Valley.
See other products by Frank Vasquez
Profile icon Chris Simmonds
LinkedIn
Chris Simmonds is a software consultant and trainer living in southern England. He has almost two decades of experience in designing and building open-source embedded systems. He is the founder and chief consultant at 2net Ltd, which provides professional training and mentoring services in embedded Linux, Linux device drivers, and Android platform development. He has trained engineers at many of the biggest companies in the embedded world, including ARM, Qualcomm, Intel, Ericsson, and General Dynamics. He is a frequent presenter at open source and embedded conferences, including the Embedded Linux Conference and Embedded World.
Read more
See other products by Chris Simmonds
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