1、Chp4 Development Tools,Building of Development Envirement： 1. Install Linux System 1) Distributions of Embedded Linux: Red Hat Enterprise Edition (RHEL) Red Hat company developped RHEL (Red Hat Enterprise Linux) Provide rechargeable technical support and updates 3 editions: AS(The most powerful and

2、perfect version), ES, WS,Desktop Edition (Fedora core) Community developped Free of charge, but stopped update Last version: Red Hat 9.0 Debian(Debian GNU/Linux) In 1993, Debian plan(Ian Murdock) Community developped (800 Volunteers ) Free of charge, High quality, Compatible with UNIX Debian have ov

3、er 8710 softwares(free software) http:/www. /,2) Basic Concepts: (“嵌入式LINUX操作系統(tǒng)”P8-9) File system, partition and mount Mount: The process of partitioning and directory correspondence Windows: Directory structure belongs to partition Linux: Partition belongs to directory structure 3) Instal

4、lation preparation: Computer hardware configuration Hard disk, Memory, Compatibility of Linux system to target board hardware,If or not support some newer hardware? 4) Installation in Windows: Building virtual machine: Install Vmware and run Install Linux OS Modes: CD-ROM, hard disk, network Details

5、: E-book: Linux 嵌入式系統(tǒng)開發(fā) P181183 Baidu,2. Building Cross compiler Toolchain and Envirement Setting environment variables Prepare source package and patches(補(bǔ)丁) binuils, gcc, glibc, Linux kernel Compile binuils Compile the header files of Linux kernel (Using gcc),copy the header files of Linux kernel

6、Compile the header files of glibc Compile gcc(1st stage) Compile the complete of glibc Compile the complete of gcc Details:E-book: Linux 嵌入式系統(tǒng)開發(fā) P183193,Tools of Toolchain: Using Cross compiler Toolchain of Distributions Example: YL2440 board,3. Bootloader Uboot ADS Download the Bootloader to the ta

7、rget .bin (編譯生成的bootloader) sjf2440 (燒寫Flash的工具軟件) Nandflash, Norflash Example: YL2440 Chp3 3.7, 3.8,4. Compile the Linux kernel 1) Configure the Linux kernel make config: Text mode make menuconfig: Text options, most widely used make xconfig: Graphics window mode, Xwindows make oldconfig: read .config file 2) Install compile tools Example: YL2440 Chp7 3) Build the Linux kernel image Example: YL2440 Chp7,5. Download the Linux kernel image to the target DNW zImage: Compressed arch/boot vmlinux: Uncompress