AW: Rust on RTEMS

[Frank Kühndel]

Hello Jan,

thanks for the info and all your efforts.

Are you planing to add a short "How to use Rust with RTEMS?" section to 
the RTEMS user manual?

I am asking because I was thinking of writing a description on how to 
use Rust with `#![no_std]` and `#![no_main]` into the user manual. 
Basically the same text which I already attached to

    https://lists.rtems.org/pipermail/users/2023-December/068914.html

Yet, because you are much ahead of me, does it still make sense for me 
to put such a text into the manual (would it not be outdated by your 
approach soon)?

Greetings,
Frank

On 1/29/24 19:27, Jan.Sommer at dlr.de wrote:
> Hi everyone,
> 
> Sorry for the delayed response.
> Yes, that’s me. I am responsible for the RTEMS related work-package in the “cRustacea in Space” project.
> One of the goals is to create a prototypical port of Rust to RTEMS for our example target platform (Xilinx Zynq).
> The status is currently the following:
> 
>    *   I have a custom target based added to the compiler sources which compiles Rust code for the Zynq
>    *   I ported the stdlib to work with RTEMS (using the POSIX API)
>    *   I ported the libc wrapper for this to work
>    *   I can now compile the below application and unit test and run it on the (simulated) target using cargo build/run/test without the need to use any extra attributes as a work-around.
> 
> fn add_two_numbers(num1: i32, num2: i32) -> i32 {
>      num1 + num2
> }
> 
> #[test]
> fn test_add_two_numbers() {
>      assert_eq!(add_two_numbers(2, 3), 5);
> }
> 
> pub fn main() -> ! {
>       println!("Hallo from println");
>       println!("2 + 2 = {}", add_two_numbers(2,2));
> 
>       loop {}
> }
> 
> My next goal is to add those changes to the official Rust repos in order to have it as a Tier3 target platform.
> I need to tidy up my commits and have a few open questions regarding naming conventions (I will start a corresponding thread here shortly).
> With that done, it should be much easier for others to play around with Rust on RTEMS as it only requires to install the nightly compiler via rustup.
> 
> Cheers,
> 
>      Jan
> 
> Von: Joel Sherrill<joel at rtems.org>
> Gesendet: Mittwoch, 20. Dezember 2023 23:38
> An: Frank Kühndel<frank.kuehndel at embedded-brains.de>
> Cc: Molock, Dwaine S. (GSFC-5820)<dwaine.s.molock at nasa.gov>;rtems-users at rtems.org  <users at rtems.org>; Sommer, Jan<Jan.Sommer at dlr.de>
> Betreff: Re: Rust on RTEMS
> 
> Karel Gardas posted in February that he has Rust on RTEMS on an arm.
> 
> Frank. Are there instructions on building the tools chain somewhere?
> 
> And is Jan Sommer part of the DLR Rust on RTEMS project?
> 
> --joel
> 
> On Wed, Dec 20, 2023, 3:59 PM Frank Kühndel <frank.kuehndel at embedded-brains.de<mailto:frank.kuehndel at embedded-brains.de>> wrote:
> Hello Dwaine,
> 
> On 12/20/23 20:41, Molock, Dwaine S. (GSFC-5820) wrote:
>   > Hello,
>   >
>   > Has anyone been able to execute Rust on RTEMS?
> 
> Yes – to use RTEMS from within a Rust application, with
> 
> #![no_std]
> #![no_main]
> 
>   >
>   > If so, is there a how to guide and what architecture and development
> hardware was used?
> 
> I have not yet found time to write a documentation despite I want to do
> so. Sorry for this. Ferrous Systems first extended Rust to run on
> Gaisler SPARC bare metal and then they figured it works with RTEMS 5
> from Gaisler, too. Their documentation is here:
> https://github.com/ferrous-systems/sparc-experiments/
> 
> I did run my examples only on simulators. I tried two architectures with
> RTEMS 6: Leon3 and RISC-V.
> 
> Greetings,
> Frank
> 
> --
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embedded brains GmbH & Co. KG
Herr Frank KÜHNDEL
Dornierstr. 4
82178 Puchheim
Germany
email: frank.kuehndel at embedded-brains.de
phone:  +49-89-18 94 741 - 23
mobile: +49-176-15 22 06 - 11

Registergericht: Amtsgericht München
Registernummer: HRA 117265
Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler
Unsere Datenschutzerklärung finden Sie hier:
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