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This article mainly explains "what is the compilation method of Android4.0.3 image". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the compilation method of Android4.0.3 image".

No matter what file system needs to correspond to the linux kernel and uboot, so this chapter first introduces the uboot and kernel compilation corresponding to the Android4.0.3 file system, and then introduces the compilation of the Android4.0.3 file system.

5.3.1 compilation of uboot

5.3.1.1 Source directory

The Uboot source code is located in the directory of the CD "06 _ Source _ uboot and kernel", as shown in the following figure.

5.3.1.2 Compiler

As shown in the following figure, the compiler is used under the "02 _ compiler" and the "→" ARM cross compiler under the "arm-2009q3.tar.bz2" directory. If you are using a built environment, make sure that the compiler environment variables are shown in the following figure.

5.3.1.3 Parameter configuration

The script that compiles uboot is the "build_uboot.sh" in the source folder. When compiling, you need to pass parameters to the script. Depending on the core board, the script execution parameters are shown in the following table.

5.3.1.4 example of compiling and generating uboot image

Here we take the SCP 1G core board as an example to compile the uboot image. Change "CodeSign4SecureBoot_POP" to the directory of "06 _ source _ uboot and kernel" CD,

Copy "CodeSign4SecureBoot_SCP" and "iTop4412_uboot_xxx.tar.gz" to the Ubuntu system, and then extract "iTop4412_uboot_xxx.tar.gz" to get the "iTop4412_uboot" folder, as shown in the following figure.

Go to the "iTop4412_uboot" folder and compile uboot using the compilation script "build_uboot.sh". What you need to compile here is the uboot image of "SCP 1G core board", then the compilation command is ". / build_uboot.sh SCP_1GDDR" enter the compilation command, as shown in the following figure. Be sure to determine which type of core board is here, and then pass the corresponding parameters to the script.

As shown in the following figure, it is being compiled.

As shown in the following figure, the script execution is complete, and the "u-boot-iTOP-4412.bin" file is generated under the "iTop4412_uboot" folder. The generated file "u-boot-iTOP-4412.bin" file is the uboot image file corresponding to the SCP 1G memory core board.

Thank you for reading, the above is the content of "what is the compilation method of Android4.0.3 image?" after the study of this article, I believe you have a deeper understanding of what the compilation method of Android4.0.3 image is, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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