Cross-Compiling Linux Hello World Application

[Future-Electronics-Design-Center]

If I am using the Yocto build environment for my Linux distribution targeting the MPFS Icicle kit, how do I setup build environment for a Makefile-based Hello World application?

Thanks,
-Tim

[lhanlyu]

You can build you application on your target with the 'mpfs-dev-cli' image. For example look at the sample applications installed on your target icicle-kit: i.e. /opt/microchip/gpio
You will see the source files and make file.

[Future-Electronics-Design-Center]

Thanks for the suggestion lhanlyu, but unfortunately, your suggestion doesn't work for my case. I am trying to compile the Linux PCIe driver for DG0756 and the required kernel includes are not present in that image so looking to cross-compile in the VM I use for development. I think this is the more typical use case for a software developer anyway.

[hughbreslin]

DG0756 targets a Splash Kit or PolarFire Eval kit, are you trying to compile the kernel driver for use on an Icicle Kit with a Splash / Eval kit connected to it? I think @lhanlyu suggestion stands for a Hello World application but this is not a hello world application, the requirements in the demo guide are for a Cent OS host and not directly for PolarFire SoC. Just to confirm, this is the copy of the doc I'm looking at.

[Future-Electronics-Design-Center]

Hi Hugh,

Yes, that is the one. I was hoping to connect the Icicle-kit and the Splash kit together, and run the Linux pcie_app code that is part of DG0756. I did try to compile the driver directly on the Icicle kit but got the output attached. I have been able (with a little modification to the Makefile) built the driver for Ubuntu and have it running with the Splash kit now.

I was trying to keep my original request simple asking for a method to cross-compile (rather than compile directly on the target) a Hello World application under my Linux VM. Thanks

Build Error Icicle Kit.txt

[lhanlyu]

Perfect. As you are using yocto, you could use a recipe and compile using oe_runmake.
After compile you could also install the application. As an example please look at the polarfire-soc-linux-examples.bb

[Future-Electronics-Design-Center]

Thanks Ihanlyu. I will look at the example recipes and oe_runmake.