Hacker News new | ask | show | jobs
by steveklabnik 2164 days ago
The smallest Rust binary ever produced was 145 bytes. https://github.com/tormol/tiny-rust-executable

That is a bit extreme but it demonstrates the lower bound.

There's a lot of things you can do to drop sizes, depending on the specifics of what you're doing and the tradeoffs you want to make.

Architecture support is where stuff gets tougher than size, to be honest. ARM stuff is well supported though, and is only going to get better in the future. The sort of default "get started" board is the STM32F4 discovery, which has 1 meg of flash and 192k of RAM. Seems like you're well above that.
1 comments
hellofunk 2164 days ago
> ARM stuff is well supported though

FYI Rust (and Go) currently don’t work on the new Apple ARM macs.

https://news.ycombinator.com/item?id=23856806

link
steveklabnik 2164 days ago
That is not entirely correct for Rust. I know because I helped a friend of mine debug the porting process. (Apple did not see fit to give me access to the hardware, alas.)

https://github.com/rust-lang/rust/issues/73908 has the full details.

(Also, not to be super pedantic, but this (among other things) is partially why I said "and is only going to get better in the future," that is, the support is generally good (I know, I am literally doing some of that in another tab right now) but not flawless.)

link
hellofunk 2164 days ago
Very interesting, thanks for the link!
link
steveklabnik 2164 days ago
You're welcome! And I'm sorry you're downvoted, I think that's a little overly harsh. Had I not known, that would have been helpful.
link
oblio 2164 days ago
That platform is not even out yet. Outside of Apple's stuff, I doubt any ecosystem supports it.

Some probably won't support it years after it's available for actual commercial products...

link
hellofunk 2164 days ago
No need to yell, it’s a relevant point to make since we’re talking about ARM.

Not sure also what you mean by giving it a rest, this is the first time I’ve made a comment on this point.

Update: thanks for editing your comment to be less offensive.

link
oblio 2164 days ago
I've removed the yelling :-)

Someone else was saying the same thing in the comment you linked. I'll summarize it as:

"Rust takes time to port to a platform which is not even commercially available".

link
kibwen 2164 days ago
There are some people who have already gotten Rust to work (with caveats) on Apple silicon: https://twitter.com/JakeGoulding/status/1279207843711811585
link