Messages in this thread |  | | From | Linus Torvalds <> | Date | Sun, 12 Jul 2020 13:33:57 -0700 | Subject | Re: Linux kernel in-tree Rust support |
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On Sun, Jul 12, 2020 at 12:39 PM Josh Triplett <josh@joshtriplett.org> wrote: > > Rust has hard stability guarantees when upgrading from one stable > version to the next.
I think the worry is more about actual compiler bugs, not the set of exposed features.
That's always been the biggest pain point. Compiler bugs are very rare, but they are so incredibly hard to debug when they happen that they end up being extra special.
Random "we need this compiler for this feature" is actually fairly rare. Yes, the most recent case of me just saying "let's use 4.9 rather than 4.8" was due to that, but honestly, that's the exception rather than the rule, and is to occasionally simplify the code (and the test coverage).
The most common case of compiler version checks are due to "compiler XYZ is known to mis-compile ABC on target IDK".
Linus
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