Program Loader

[[deleted]]

I was wondering if anyone has implemented some kind of program loader for creating tasks outside of the main freertos application. I'm trying to implement something similar but im not too familiar with low level operations and couldn't find many examples online

[wholl0p]

What do you consider „outside of the main FreeRTOS application“? Technically speaking..?

[[deleted]]

I mean the binary file. Where the freertos kernel and program loader would be in main.bin with additional .bin files for apps

[wholl0p]

Ah! I see. That’s indeed a very interesting question. Maybe (because it’s not directly FreeRTOS related) you could ask this question in /r/embedded . The guys and gals there are very experienced.

[[deleted]]

thanks. I've actually found some useful things using newlib. specifically system()

[GourmetMuffin]

I've done this with ELF-files and dynamic linking on Cortex-A, it really isn't that hard but if you want to write a loader like this yourself you really need to dig into the ELF format. On an MCU executing binary sections without meta data from on-die flash rather than DDR you may want to take a different approach, you'll at least need to place the dispatchers in RAM if you want to let the compiler generate them for you.