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There is work underway to create an LLVM backend for the Tensilica Xtensa, so Rust on the ESP32 / ESP8266 might soon be a reality!

pjmlp 10y ago
There is nothing that I could do with them, but I love their specs, specially when I think about my first MS-DOS computer. So I imagine there would be lots of nice maker opportunities when that support comes out, not only for Rust, but for other LLVM frontends as well.
- MrBuddyCasino 10y ago
  Totally, I like to think of them as this generations C64, though some might argue that the Arduino Uno or the Raspberry Pi deserve that title.
jononor 10y ago
Do you know of any place one can track this work? Best reference google brought me was https://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk/gcc/config/xtensa/ https://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk/gcc/con... - but pretty hard to decipher current state from that...
- MrBuddyCasino 10y ago
  Got that directly from an Espressif employee as inofficial info, but it has since been confirmed: https://twitter.com/buddy_casino/status/824299718104743938 https://twitter.com/buddy_casino/status/824299718104743938 So I guess its not in the open right now. I wonder if its going to be specific to their chips, because the Xtensa architecture is highly configurable and so there isn't really a single target, but potentially many.
masklinn 10y ago
Probably not "soon", AVR took a really long time to get merged into LLVM, and that's a pre-requisite for Rust support.
- steveklabnik 10y ago
  I can't comment on timelines but I know someone has been working on AVR support for Rust.
  - masklinn 10y ago
    Oh yeah the micro folks are definitely working on it, I meant that if work is just starting on the LLVM Xtensa backend, the Rust merge is nowhere near, and as example submitted that the AVR backend had taken a long time to be merged into LLVM and still needs to be finished & merged for Rust.
- deleted 10y ago
  [deleted]
richchurcher 10y ago
Not the ESP8266 of course, but in the same vein you may be interested in effots to get Rust working on the RTL8710: https://polyfractal.com/post/rustl8710/ https://polyfractal.com/post/rustl8710/

pjmlp 10y ago

There is nothing that I could do with them, but I love their specs, specially when I think about my first MS-DOS computer. So I imagine there would be lots of nice maker opportunities when that support comes out, not only for Rust, but for other LLVM frontends as well.

MrBuddyCasino 10y ago
Totally, I like to think of them as this generations C64, though some might argue that the Arduino Uno or the Raspberry Pi deserve that title.

jononor 10y ago

Do you know of any place one can track this work? Best reference google brought me was https://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk/gcc/config/xtensa/ https://llvm.org/svn/llvm-project/llvm-gcc-4.2/trunk/gcc/con... - but pretty hard to decipher current state from that...

MrBuddyCasino 10y ago
Got that directly from an Espressif employee as inofficial info, but it has since been confirmed: https://twitter.com/buddy_casino/status/824299718104743938 https://twitter.com/buddy_casino/status/824299718104743938 So I guess its not in the open right now. I wonder if its going to be specific to their chips, because the Xtensa architecture is highly configurable and so there isn't really a single target, but potentially many.

masklinn 10y ago

Probably not "soon", AVR took a really long time to get merged into LLVM, and that's a pre-requisite for Rust support.

steveklabnik 10y ago
I can't comment on timelines but I know someone has been working on AVR support for Rust.
- masklinn 10y ago
  Oh yeah the micro folks are definitely working on it, I meant that if work is just starting on the LLVM Xtensa backend, the Rust merge is nowhere near, and as example submitted that the AVR backend had taken a long time to be merged into LLVM and still needs to be finished & merged for Rust.
deleted 10y ago
[deleted]

richchurcher 10y ago

Not the ESP8266 of course, but in the same vein you may be interested in effots to get Rust working on the RTL8710: https://polyfractal.com/post/rustl8710/ https://polyfractal.com/post/rustl8710/