this post was submitted on 21 Sep 2024
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Nobody is going to rewrite the entire kernel in rust. Parts of it are still written in assembler. It’s well over 30 million lines of code, 60% of it drivers. You can’t just go and rewrite that in a different language, hell it doesn’t even compile on the wrong C compiler version. You would need access to the hardware and run tests for every module you change at least or risk breaking stuff in production.
C programmers will always be around since they are necessary to keep the old code running on newer hardware. There are thousands of companies relying on the Linux and BSD kernels, for example every network router, switch etc.
I have nothing against rust, but there is always a danger of having too many programming languages used in the same project, especially if a error in one language can break something in a module written in the other. That’s just a nasty complication, especially for a time critical project like the kernel.