Installing arm-linux-gcc-4.4.3.tar.gz
1. Extracting files
Unzip the tar zxvf arm-linux-gcc-4.4.3.tar.gz-c/
sudo tar zxvf arm-linux-gcc-4.4.3.tar.gz-c/
Execute the command to extract the ARM-LINUX-GCC to the/opt/friendlyarm/toolschain/4.4.3 directory
2. Create a Directory
sudo mkdir/usr/local/arm
3. Copying files
sudo cp-r/opt/friendlyarm/toolschain/4.4.3/usr/local/arm
Execute the command to copy the 4.4.3 folder to the directory/usr/local/arm directory 4. Add environment variable
Method One: Modify the/ETC/BASH.BASHRC file (this file applies only to the current user)
sudo gedit/etc/bash.bashrc
At the end of the add export path= $PATH:/opt/friendlyarm/toolschain/4.4.3/bin (Path) (Note that there are no spaces on the equals sign)
Method Two: Modify the/etc/profile file (this file belongs to the system level environment variable, the thing that is set inside is applicable to all users)
sudo gedit/etc/profile
Add the path setting, at the end, as follows:
Export path= $PATH:/usr/local/arm/4.4.3/bin (Path) (Note that there are no spaces on the equals sign)
Method Three: Modify the/etc/environment file (Recommended)
sudo gedit/etc/environment
The original file should be
Path= "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
Change it to
Path= "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/arm/4.4.3/bin"
About environment variable issues:
What are environment variables? For example, path, when the system is required to run a program without telling it the full path of the program, in addition to the current directory under the search for this program, but also to the path specified in the paths to find. The user can run the process better by setting the environment variables.
If the above does not add environment variables, to run ARM-LINUX-GCC this program, each time you have to write the full path of ARM-LINUX-GCC. /USR/LOCAL/ARM/4.4.3/BINARM-LINUX-GCC file name-o output file name
This is very troublesome, so add to path and let the computer know where the program is.
5. Registering Environment variables
Immediately make the new environment variable effective, do not restart the computer, corresponding to step 4 there are 3 ways
Method One: SOURCE/ROOT/.BASHRC
Or./ETC/BASH.BASHRC
Method Two: Source/etc/profile
Method Three: Immediate effect
6. Check if the path is joined to path
Echo $PATH
Display Content/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/arm/4.4.3/bin Indicates that the path to the cross-compiler has been added. At this point, the cross-compilation environment is installed.
7. Test if the installation is successful ARM-LINUX-GCC-V view version number
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