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This article mainly explains "how to install cross-compilation tool chain in QT system". The explanation content in this article is simple and clear, easy to learn and understand. Please follow the idea of Xiaobian to study and learn "how to install cross-compilation tool chain in QT system" together.

1. When compiling, you need to use the cross-compiler tool. Here, arm-2009q3 compiler is installed. Under the net disk directory "03-System Firmware Burning and Compilation\05 Development Board System Source Code Compilation\arm-2009q3.tar.bz2 ", as shown in the figure below, the compressed package "arm-2009q3.tar.bz2" is installed.

2. Use SSH tool to copy the cross-compilation tool to the folder "usr"-- >"local"-->"arm" of Ubuntu14 system. There is no arm folder under local by default. You can create a new one. This is shown below.

Copy the compiler as shown below.

3. Then extract the archive to the current directory on Ubuntu.

Use the command "cd /usr/local/arm/" to enter the/usr/local/arm folder, and then use the decompression command "tar - vxfarm-2009q3.tar.bz2" to extract the compressed package, as shown in the following figure.

4. To modify the cross-compilation tool path, you need to modify the environment variables, as follows: in the Ubuntu command line, execute the commands "cd /root" and "vim .bashrc", and open the environment variable file ".bashrc", as shown in the following figure.

Then add the following information to the last line of the ".bashrc" file: "export PATH=$PATH:/usr/local/arm/arm-2009q3/bin" as shown below.

Save and exit after modification.

5. Execute the following command to update the environment variable "source .bashrc" command, as shown in the following figure.

6. Finally, enter the command "arm" in the Ubuntu command line, and then press the TAB key. If you can see the arm compiler information in the command line, it indicates that the cross-compilation tool has been successfully installed, as shown in the following figure.

Thank you for reading, the above is "QT system how to install cross-compilation tool chain" content, after the study of this article, I believe that everyone on the QT system how to install cross-compilation tool chain this problem has a deeper understanding, the specific use of the situation also needs to be verified by practice. Here is, Xiaobian will push more articles related to knowledge points for everyone, welcome to pay attention!

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