The Art of Linux Kernel Design: Illustrating the Operating System Design Principle and Implementation

By Lixiang Yang

Uses the working Operation because the major Thread

Difficulty in figuring out an working approach (OS) lies now not within the technical points, yet within the complicated relationships contained in the working structures. The artwork of Linux Kernel layout: Illustrating the working procedure layout Principle and Implementation addresses this complexity. Written from the viewpoint of the dressmaker of an working process, this publication tackles very important concerns and useful difficulties on easy methods to comprehend an working procedure thoroughly and systematically. It eliminates the secret, revealing working method layout directions, explaining the BIOS code at once concerning the working approach, and simplifying the relationships and guiding ideology in the back of it all.

Based at the resource Code of a true Multi-Process working System

Using the 0.11 variation resource code as a illustration of the Linux uncomplicated layout, the e-book illustrates the genuine states of an working approach in genuine operations. It offers an entire, systematic research of the working approach resource code, in addition to a right away and entire realizing of the true working process run-time constitution. the writer comprises run-time reminiscence constitution diagrams, and an accompanying essay to assist readers seize the dynamics in the back of Linux and comparable software program systems.

  • Identifies via diagrams the positioning of the most important working method facts buildings that lie within the memory
  • Indicates via diagrams the present working prestige info which is helping clients comprehend the interrupt country, and left time slice of processes
  • Examines the connection among procedure and reminiscence, reminiscence and dossier, dossier and method, and the kernel
  • Explores the basic organization, practise, and transition, that's the important a part of working system

Develop a procedure of Your Own

This textual content bargains an in-depth examine on studying the working approach, and offers a tremendous prerequisite for designing a complete new working system.

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365 7. four. three functionality of the i_update, i_dirt, and s_dirt . . . . . . . . . . . . . . . . . . 368 functionality of the count number, Lock, Wait, Request . . . . . . . . . . . . . . . . . . . . . . . . . . . 370 7. five. 1 functionality of b_count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370 7. five. 2 functionality of i_count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372 7. five. three functionality of b_lock and *b_wait . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375 7. five. four functionality of i_lock, i_wait, s_lock, and *s_wait . . . . . . . . . . . . . . . 378 7. five. five functionality of Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381 instance 1: approach ready Queue of Buffer Block . . . . . . . . . . . . . . . . . . . . . 383 total examine the Buffer Block and the Request Item . . . . . . . . . . . . . . . . . 408 instance 2: complete Examples of Multiprocess working dossier . . . . 411 eight. Inter-Process verbal exchange eight. 1 283 431 Pipe Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431 eight. 1. 1 The construction strategy of the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433 eight. 1. 2 Operation of Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439 ix 8. 2 eight. three sign Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454 eight. 2. 1 Use of sign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458 eight. 2. 2 The effect of sign at the procedure Execution country . . . . . . . . . 469 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479 nine. working System’s layout guidance 481 nine. 1 nine. 2 Run an easy software to work out What the working process Has performed . . . . . 481 ideas at the layout of the working method: Master–Slave Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486 nine. 2. 1 approach and Its production Mechanism within the Master–Slave Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486 nine. 2. 1. 1 software Boundary and procedure . . . . . . . . . . . . . . . . . . 486 nine. 2. 1. 2 method construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487 nine. 2. 2 How Does the Designing of working approach demonstrate the Master–Slave Mechanism? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487 nine. 2. 2. 1 Master–Slave Mechanism That the working process displays in strategy Scheduling . . . . . . . . . . . . . 487 nine. 2. 2. 2 Master–Slave Mechanism That the working method Adopts in reminiscence administration . . . . . . . . . . . 488 nine. 2. 2. three Master–Slave Mechanism Is mirrored by means of OS File System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489 nine. three 3 Key suggestions in figuring out the Master–Slave Mechanism . . . . . . . . 490 nine. three. 1 safeguard and Paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490 nine. three. 2 Privilege point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493 nine. three. three Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494 nine. four Decisive consider constructing the Master–Slave Mechanism: The Initiative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497 nine. five dating among software program and . . . . . . . . . . . . . . . . . . . . . . . . . 498 nine. five. 1 Nonuser method: technique zero, strategy 1, Shell strategy . . . . . . . . . . . 498 nine. five. 2 garage of dossier and knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 499 nine. five. 2. 1 reminiscence, hard drive, Buffer: Computing garage, Storing garage, Transition country garage . . . . . . . . . . . 500 nine.

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