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<noinclude>{{ApplicableFor | <noinclude> | ||
|MPUs list=STM32MP13x, STM32MP15x | {{ApplicableFor | ||
|MPUs checklist=STM32MP13x,STM32MP15x | |MPUs list=STM32MP13x, STM32MP15x, STM32MP25x | ||
}}</noinclude> | |MPUs checklist=STM32MP13x, STM32MP15x, STM32MP25x | ||
}} | |||
</noinclude> | |||
<noinclude> | <noinclude> | ||
[[Category:SDK]] | [[Category:SDK]] | ||
{{PublicationRequestId | 7646 | 2018-06-04 | PhilipS}} | {{PublicationRequestId | 7646 | 2018-06-04 | PhilipS}} | ||
{{ReviewsComments|-- [[User:Jean-philippe Romain|Jean-philippe Romain]] ([[User talk:Jean-philippe Romain|talk]]) 17:09, 28 November 2023 (CET)<br />To check for new components part of Developer package to compile with SDK}} | |||
==Article purpose== | ==Article purpose== | ||
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===Modifying the Linux kernel=== | ===Modifying the Linux kernel=== | ||
Prerequisites: | Prerequisites: | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the SDK|SDK is installed]] | ||
* the [[ | * the [[STM32MPU Developer Package#Starting up the SDK|SDK is started up]] | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the OpenSTLinux BSP packages|BSP package is installed]] | ||
{{highlight|'''The ''<Linux kernel installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | {{highlight|'''The ''<Linux kernel installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | ||
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* [[How to cross-compile with the Developer Package#Modifying a built-in Linux kernel device driver|Modification of a built-in device driver]] | * [[How to cross-compile with the Developer Package#Modifying a built-in Linux kernel device driver|Modification of a built-in device driver]] | ||
* [[How to cross-compile with the Developer Package#Modifying an external in-tree Linux kernel module|Modification of an external in-tree module]] | * [[How to cross-compile with the Developer Package#Modifying an external in-tree Linux kernel module|Modification of an external in-tree module]] | ||
* [[How to cross-compile with the Developer Package#Adding an external out-of-tree Linux kernel module|Adding an external out-of-tree Linux kernel module]] | |||
* [[How to cross-compile with the Developer Package#Adding an external out-of-tree Linux kernel module| | |||
===Adding Linux user space applications=== | ===Adding Linux user space applications=== | ||
Prerequisites: | Prerequisites: | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the SDK|SDK is installed]] | ||
* the [[ | * the [[STM32MPU Developer Package#Starting up the SDK|SDK is started up]] | ||
Once a suitable cross-toolchain (OpenSTLinux SDK) is installed, it is easy to develop a project outside of the OpenEmbedded build system. <br> | Once a suitable cross-toolchain (OpenSTLinux SDK) is installed, it is easy to develop a project outside of the OpenEmbedded build system. <br> | ||
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===Modifying the U-Boot=== | ===Modifying the U-Boot=== | ||
Prerequisites: | Prerequisites: | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the SDK|SDK is installed]] | ||
* the [[ | * the [[STM32MPU Developer Package#Starting up the SDK|SDK is started up]] | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the OpenSTLinux BSP packages|BSP package is installed]] | ||
{{highlight|'''The ''<U-Boot installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | {{highlight|'''The ''<U-Boot installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | ||
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===Modifying the TF-A=== | ===Modifying the TF-A=== | ||
Prerequisites: | Prerequisites: | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the SDK|SDK is installed]] | ||
* the [[ | * the [[STM32MPU Developer Package#Starting up the SDK|SDK is started up]] | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the OpenSTLinux BSP packages|BSP package is installed]] | ||
{{highlight|'''The ''<TF-A installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | {{highlight|'''The ''<TF-A installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | ||
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===Modifying the OP-TEE=== | ===Modifying the OP-TEE=== | ||
Prerequisites: | Prerequisites: | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the SDK|SDK is installed]] | ||
* the [[ | * the [[STM32MPU Developer Package#Starting up the SDK|SDK is started up]] | ||
* the [[ | * the [[STM32MPU Developer Package#Installing the OpenSTLinux BSP packages|BSP package is installed]] | ||
{{highlight|'''The ''<OP-TEE installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | {{highlight|'''The ''<OP-TEE installation directory>/README.HOW_TO.txt'' helper file gives the commands to:'''}} <br> | ||
Latest revision as of 11:02, 3 January 2024
1. Article purpose
The pieces of software delivered as source code within the OpenSTLinux Developer Package (for example the Linux kernel) can be modified. External out-of-tree Linux kernel modules, and pieces of applicative software (for example Linux applications) can also be developed thanks to this Developer Package, and loaded onto the board.
The build of all these pieces of software by means of the SDK for OpenSTLinux distribution, and the deployment on-target of the resulting images is explained below.
1.1. Modifying the Linux kernel
Prerequisites:
The <Linux kernel installation directory>/README.HOW_TO.txt helper file gives the commands to:
☐ configure the Linux kernel
☐ cross-compile the Linux kernel
☐ deploy the Linux kernel (that is, update the software on board)
You can refer to the following simple examples:
- Modification of the kernel configuration
- Modification of the device tree
- Modification of a built-in device driver
- Modification of an external in-tree module
- Adding an external out-of-tree Linux kernel module
1.2. Adding Linux user space applications
Prerequisites:
- the SDK is installed
- the SDK is started up
Once a suitable cross-toolchain (OpenSTLinux SDK) is installed, it is easy to develop a project outside of the OpenEmbedded build system.
There are different ways to use the SDK toolchain directly, among which Makefile and Autotools.
Whatever the method, it relies on:
- the sysroot that is associated with the cross-toolchain, and that contains the header files and libraries needed for generating binaries (see target sysroot)
- the environment variables created by the SDK environment setup script (see SDK startup)
You can refer to the following simple example:
1.3. Modifying the U-Boot
Prerequisites:
The <U-Boot installation directory>/README.HOW_TO.txt helper file gives the commands to:
☐ cross-compile the U-Boot
☐ deploy the U-Boot (that is, update the software on board)
You can refer to the following simple example:
1.4. Modifying the TF-A
Prerequisites:
The <TF-A installation directory>/README.HOW_TO.txt helper file gives the commands to:
☐ cross-compile the TF-A
☐ deploy the TF-A (that is, update the software on board)
You can refer to the following simple example:
1.5. Modifying the OP-TEE
Prerequisites:
The <OP-TEE installation directory>/README.HOW_TO.txt helper file gives the commands to:
☐ cross-compile the OP-TEE
☐ deploy the OP-TEE (that is, update the software on board)
You can refer to the following simple example: