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STOP WRITING C (lemmy.world)

submitted 10 months ago by [email protected] to c/[email protected]

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[–] [email protected] 49 points 10 months ago (4 children)

Let's rewrite Linux kernel in Python

[–] [email protected] 20 points 10 months ago (2 children)

Nobody's built a supercomputer powerful enough to run a python version of even Linux Lite Edition.

[–] [email protected] 27 points 10 months ago

Redstone it is, then.

[–] [email protected] 7 points 10 months ago (1 children)

I mean, someone made a barebones Linux work in scratch

[–] [email protected] 5 points 10 months ago (2 children)

Like... Kernel written in scratch?

[–] [email protected] 12 points 10 months ago* (last edited 10 months ago)

Holy fuck yeah

[–] [email protected] 3 points 9 months ago

Yeah, it uses Ed as it's text editor

[–] [email protected] 19 points 10 months ago* (last edited 10 months ago) (1 children)

Fun fact!

The Asahi Linux drivers for the Apple M1 GPU were originally written in Python: https://asahilinux.org/2022/11/tales-of-the-m1-gpu/

GPU drivers in Python?!

Since getting all these structures right is critical for the GPU to work and the firmware to not crash, I needed a way of quickly experimenting with them while I reverse engineered things. Thankfully, the Asahi Linux project already has a tool for this: The m1n1 Python framework! Since I was already writing a GPU tracer for the m1n1 hypervisor and filling out structure definitions in Python, I decided to just flip it on its head and start writing a Python GPU kernel driver, using the same structure definitions. Python is great for this, since it is very easy to iterate with! Even better, it can already talk the basic RTKit protocols and parse crash logs, and I improved the tools for that so I could see exactly what the firmware was doing when it crashes. This is all done by running scripts on a development machine which connects to the M1 machine via USB, so you can easily reboot it every time you want to test something and the test cycle is very fast!

[–] [email protected] 3 points 10 months ago (1 children)

Good for testing and iterating, but what about performance? Though I guess getting everything right is more important right now, translating it into another language will probably require less work that way

[–] [email protected] 6 points 10 months ago

It has already been translated into rust. Python wasn't ever intended to be used in the "real" driver, but I thought it was a fun anecdote none the less.

[–] [email protected] 14 points 10 months ago (1 children)

No in JavaScript

[–] [email protected] 3 points 10 months ago

The prophets have foretold it: https://www.destroyallsoftware.com/talks/the-birth-and-death-of-javascript

[–] [email protected] 5 points 10 months ago

Yes and let us build the environment with conda, it's going to be a fun time!