JZ2440 Development Notes (1)——arm-linux-gcc environment construction

1. Download the arm-linux-gcc-4.4.3 installation package, http://arm9.net/download.asp

2. Unzip arm-linux-gcc-4.4.3-20100728.tar.gz, use the command tar -zxvf arm-linux-gcc-4.4.3-20100728.tar.gz

3. Rename the unzipped folder to arm, and then copy the arm folder to /usr/local, #cp -rv arm /usr/local/

4. Modify the environment variables and add the path of the cross compiler to PATH. (Method 1 is recommended)

　　 Method 1: Modify the /etc/bash.bashrc file

　　 #vim /etc/bash.bashrc

　　Add at the end:

　　 export PATH=$PATH:/usr/local/arm/bin

　　 Method 2: Modify the /etc/profile file:

　　 # vim /etc/profile

　　Add the path setting and add the following at the end, and save the /etc/profile file:

　　 export PATH=$PATH:/usr/local/arm/bin

　　 Method 3: #export PATH=$PATH:/usr/local/arm/bin

　　　 Note: (This is only valid in the current terminal!)

5. Make the new environment variables take effect immediately without restarting the computer:

　 Corresponding method 1: #source /root/.bashrc

　 Corresponding method 2: # source /etc/profile

6. Check whether the path is added to PATH:

　　 # echo $PATH

　　 The displayed content contains /usr/local/arm/4.4.3/bin, which means the path of the cross compiler has been added to PATH. At this point, the cross compilation environment is installed.

7. Test whether the installation is successful

　　# arm-linux-gcc -v　　

　　The above command will display the arm-linux-gcc information and version.

Note: If the installed Linux system is 64-bit, when executing step 7, it will be displayed that the /usr/local/arm/bin directory is not found. At this time, you need to install ia32-libs. The command is sudo apt-get install ia32-libs