The establishment of arm-linux-gcc-3.3.2 Cross Compiler

The establishment of arm-linux-gcc-3.3.2 cross compiler-Linux general technology-Linux programming and kernel information, the following is a detailed reading. 1: Download arm-linux-gcc-3.3.2.tar.bz2 to any directory
I downloaded it to my tools Folder/home/zt/tools

The arm-linux-gcc-3.3.2.tar.bz2 is as follows :( there are 71.3 M)

Http://www.applieddata.net/devel... x-gcc-3.3.2.tar.bz2

2: Extract

Go to the tool directory (depending on the situation)

Debian:/home/zt/tools # cd/home/zt/tools
Extract

Debian:/home/zt/tools # tar xvf arm-linux-gcc-3.3.2.tar.bz2
The decompression process takes some time. The decompressed file forms the usr/local/folder.
Enter this folder

Debian:/home/zt/tools # cd usr/local/
Test the arm folder under/usr/local /.

Debian:/home/zt/tools/usr/local # cp-rv arm/usr/local/
Currently, the cross-compiled Assembly is located under/usr/local/arm/3.3.2/bin.

3. Modify Environment Variables

Export PATH =/usr/local/arm/3.3.2/bin: $ PATH
Environment variables added using this method will be lost after power loss. Therefore, you can perform the following operations in the startup script:

Debian:/home/zt/tools/usr/local # vim/etc/bash. bashrc
Add the above command in the last line of the file

Export PATH =/usr/local/arm/3.3.2/bin: $ PATH
Save and exit. When you log on to the root again, the new environment variables will be loaded.
Check

Debian:/home/zt/tools/usr/local # echo $ PATH
/Usr/local/arm/3.3.2/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

This step is followed by the above steps, I encountered a problem: After restarting, execute echo $ PATH, but the list still does not contain/usr/local/arm/3.3.2/bin! So I tried to add "export PATH =/usr/local/arm/3.3.2/bin: $ PATH" to/home/jx /. in the bash_profile file, restart and run echo $ PATH again./usr/local/arm/3.3.2/bin is displayed in the list. Then, run echo $ PATH in root, and/usr/local/arm/3.3.2/bin is displayed in the list. When I add a jinxin user and then execute "su-l jinxin" (parameter-l indicates logon and change to the user environment to be switched), enter the login password of jinxin, then run echo $ PATH. the/usr/local/arm/3.3.2/bin is not displayed in the list. Data Query: all user environment variables are stored in/. bash_profile (if bash is used). Each user directory is invisible to other users. This statement is also verified above.

Note: I just found a command on the Internet: After modifying the. bash_profile file, run this command directly to make the change of the Environment Variable take effect. However, using this command is risky. Because I am here. /bash_profile adds a sentence "export PATH =/home/jx", and then runs source. after bash_profile, the basic commands in my bash shell, such as su, ls, cd, and vi, cannot be used. The command "-bash: ls: command not found" is displayed "!

Solution: I think a stupid method is to log on again, but log on with another user name, and then enter "su" in shell to enter root, modify the preceding description under root. bash_profile file. You are welcome to provide better solutions.

4: Test

The installation is successful. Otherwise, a message is displayed.

Bash: arm-linux-gcc: command not found

5: finishing work

Delete used files

Debian:/home/zt/tools/usr/local # cd ../..
Debian:/home/zt/tools # rm-rv usr