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Operating System Design: The Xinu Approach, Second Edition, by Douglas Comer
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An Update of the Most Practical A-to-Z Operating System Book
Widely lauded for avoiding the typical black box approach found in other operating system textbooks, the first edition of this bestselling book taught readers how an operating system works and explained how to build it from the ground up.
Continuing to follow a logical pattern for system design, Operating System Design: The Xinu Approach, Second Edition removes the mystery from operating system design and consolidates the body of material into a systematic discipline. It presents a hierarchical design paradigm that organizes major operating system components in an orderly, understandable manner.
The book guides readers through the construction of a conventional process-based operating system using practical, straightforward primitives. It gives the implementation details of one set of primitives, usually the most popular set. Once readers understand how primitives can be implemented on conventional hardware, they can then easily implement alternative versions.
The text begins with a bare machine and proceeds step-by-step through the design and implementation of Xinu, which is a small, elegant operating system that supports dynamic process creation, dynamic memory allocation, network communication, local and remote file systems, a shell, and device-independent I/O functions. The Xinu code runs on many hardware platforms. This second edition has been completely rewritten to contrast operating systems for RISC and CISC processors. Encouraging hands-on experimentation, the book provides updated code throughout and examples for two low-cost experimenter boards: BeagleBone Black from ARM and Galileo from Intel.
- Sales Rank: #40557 in Books
- Brand: imusti
- Published on: 2015-02-18
- Original language: English
- Number of items: 1
- Dimensions: 2.00" h x 7.20" w x 9.00" l, .0 pounds
- Binding: Hardcover
- 701 pages
- CRC Press
Review
"What sets this book aside from the mass of books on operating systems is its focus on a single real-world operating systems, namely Xinu, which is a commercially used, yet lean, clearly designed, modular operating system for embedded, single-core systems. … The book is surprisingly easy to read; essential data structures and algorithms are presented in source code and discussed adequately, allowing for a very good understanding of the entire operating system. … an ideal book for anyone who aims to understand one operating system in detail, in particular for those working with embedded systems."
―Zentralblatt MATH 1314
Praise for the First Edition:
"Operating System Design: The Xinu Approach is the best book for students and professionals to learn how a computer operating system works. The computer code, along with clear, concise explanations, is simply the best way to learn OS. Readers who study this book carefully will benefit greatly and find it time well spent."
―John C. Lin, Bell Labs
"… [the author’s] focused, clear, and thorough writing have given ‘systematic’ a new meaning (or perhaps restored its original one). … non-OS specialists also stand to learn much of what they generally need to know from this excellent book. Furthermore, it is no faint praise for me to say that the book’s seamless integration of source code listings into the text … is the best I’ve encountered and works very well indeed. Superior and consistently followed C-language coding conventions give further evidence of the meticulousness with which this book was written. … a most outstanding and practical A-to-Z OS book. It has my highest recommendation."
―George Hacken, Computing Reviews, April 2012
"This Xinu book is the best operating systems book on the market because it removes the black magic and explains how to build an OS from the ground up. It’s not like other books I tried to read ― they gave me a headache. I have already started telling friends how great it is."
―David Bafumba-Lokilo, École Polytechnique de Montréal
"Understanding an operating system is a very difficult and time-consuming task because it is one of the most complex software systems ever built. Its architecture has multiple layers of software components to manage the underline hardware and provide the system call services to the applications at the top. Knowing the host processor hardware features, the machine languages, compilers, the tool chain, and the procedure calling standard are part of the prerequisites. As a consequence, operating system books can take a black box approach to cover the interface of the system call services and the operating system algorithms in a short time. However students wishing to program an embedded system must learn the details of the implementation. This Xinu book removes the black magic and explains how to build an OS from the ground up. It explains the underlying design policies behind each of the primary components of an operating system kernel and provides the concrete implementation of source code. The Xinu design principles can be found on other commercially available platforms. A device driver on Linux platform is one example. Students majoring in embedded systems are highly recommended to read this book."
―Donald D Kim, Information and Communication Engineering Department, Dongguk University, South Korea
Most helpful customer reviews
3 of 3 people found the following review helpful.
Great book!
By Nerraga
I picked up this book to help me better understand the subject of operating systems as I work through an OS course at school. This book starts you out with minimal system that is built up chapter by chapter as you explore topics like concurrency, process scheduling, and runtime environments, etc. I'm only a couple of chapters in but so far I really appreciate both the accessibility of the text as well as the hands-on examples. Where other books describe things like race conditions or the cost of I/O this book actually demonstrates them with working code for a real OS. It's really helpful to be able to work with an OS like Xinu on a readily available inexpensive board like the Galileo or Beaglebone Black.
So far I've been having a lot of fun with this book. I'd recommend it to anyone who is willing to experiment with a working OS on real hardware but might not be comfortable jumping into Linux source just yet.
0 of 1 people found the following review helpful.
See the concept, see the code.
By Brian Olsen
As Dr. Comer claims in the beginning of this book, it is a very clear instructional book that is different from any other operating systems text book. A good example is the poor way most OS books try to visualize the concept of a process using a squiggly line. Instead this book describes the concept and before going on much further actually has exerts from the XINU code itself and if you're unsure about anything "fluffy" concept seeing the code now makes this idea much simpler. Further the code is discussed and then parallels to modern operating systems and the simplifications being made in XINU are made apparent at every step so the reader who is just learning about the inner-workings of operating systems for the first time isn't overburdened with rigorous implementation details.
4 of 4 people found the following review helpful.
Clean code, elegant implementation and clear explanations
By Mihai Olteanu
This book succesfully highlights the Xinu philosophy: small and elegant.
And powerful I might add. Because, after you download the source code
from the official website, you'll have a complete implementation of a
modern OS to play with.
The implementation together with the book covers everything from process
creation and management, context switching, memory management, interrupts
and interrupt handling, file systems and device drivers including a console
driver, real-time clock driver and Ethernet driver and also direct memory
access (DMA) devices. Everything you'll find in a modern OS, you'll also find
here, only minimal and understandable and readable.
What stands out though is the clean implementation. The code is just
beautiful; no line of code is greater than 74 characters; variable names
are consistent among files; minimal code to implement the job at hand;
clear separation of modules. There is a lot to learn just by reading the
code alone. I've also learned a thing or two about pointer manipulation
and choosing the right data structures.
Most of the chapters also contain the code of the modules/files it is
presenting. So you might not actually need the source code, or a computer
to actually follow the implementation. But for the best of results,
actually jumping around between files in an editor and trying to understand
what everything is supposed to to, before reading the explanations in the
book will bring great benefits. The language in the book is dry, no
useless jokes or remarks, just going right to the point, which is excellent.
For a hands on approach, that is, actually running the Xinu and see the
effect of your changes, you only need a BeagleBone Black or a Galileo board.
I've used the BBB together with an FTDI adapter. Everything else is just
software.
Take your time with this one, and most importantly: Enjoy the Xinu!
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