文件名称:
Building Embedded Linux Systems
开发工具:
文件大小: 4mb
下载次数: 0
上传时间: 2011-10-18
详细说明： 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Definitions 2 Real Life and Embedded Linux Systems 5 Design and Implementation Methodology 27 2. Basic Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Types of Hosts 33 Types of Host/Target Development Setups 39 Types of Host/Target Debug Setups 41 Generic Architecture of an Embedded Linux System 43 System Startup 47 Types of Boot Configurations 48 System Memory Layout 51 3. Hardware Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Processor Architectures 56 Buses and Interfaces 64 I/O 72 Storage 79 General-Purpose Networking 81 Industrial-Grade Networking 83 System Monitoring 85 4. Development Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 A Practical Project Workspace 89 GNU Cross-Platform Development Toolchain 91 C Library Alternatives 115 Java 129 Perl 131 Python 134 Other Programming Languages 135 Eclipse: An Integrated Development Environment 135 Terminal Emulators 147 5. Kernel Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Selecting a Kernel 156 Configuring the Kernel 161 Compiling the Kernel 165 Installing the Kernel 167 In the Field 169 6. Root Filesystem Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Basic Root Filesystem Structure 173 Libraries 177 Kernel Modules 183 Kernel Images 183 Device Files 184 Main System Applications 193 Custom Applications 201 System Initialization 201 7. Storage Device Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 MTD-Supported Devices 209 Disk Devices 231 To Swap or Not To Swap 234 8. Root Filesystem Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 Filesystem Types for Embedded Devices 235 Writing a Filesystem Image to Flash Using an NFS-Mounted Root Filesystem 254 Placing a Disk Filesystem on a RAM Disk 254 Rootfs and Initramfs 255 Choosing a Filesystem’s Type and Layout 258 Handling Software Upgrades 261 9. Setting Up the Bootloader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Embedded Bootloaders 274 Server Setup for Network Boot 278 Using the U-Boot Bootloader 285 10. Setting Up Networking Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Network Settings 302 Busybox 303 Dynamic Configuration Through DHCP 303 The Internet Super-Server 305 Remote Administration with SNMP 309 Network Login Through Telnet 312 Secure Communication with SSH 314 Serving Web Content Through HTTP 317 Provisioning 321 11. Debugging Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325 Eclipse 326 Debugging Applications with gdb 328 Tracing 333 Performance Analysis 336 Memory Debugging 344 A Word on Hardware Tools 348 12. Introduction to Real-Time Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351 What Is Real-Time Processing? 351 Should Your Linux Be Real-Time? 352 Common Real-Time Kernel Requirements 356 Some Typical Users of Real-Time Computing Technology 358 The Linux Paths to Real-Time 360 13. The Xenomai Real-Time System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365 Porting Traditional RTOS Applications to Linux 366 The Xenomai Architecture 368 How Xenomai Works 375 The Real-Time Driver Model 379 Xenomai, Chameleon by Design 385 14. The RT Patch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 Interrupts As Threads 388 Priority Inheritance 398 Configuring the Kernel with the RT Patch 401 High-Resolution Timers 407 The Latency Tracer 410 Conclusion 417 ...展开收缩
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