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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Sorry for the delayed response.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Yes, that’s me. I am responsible for the RTEMS related work-package in the “cRustacea in Space” project.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">One of the goals is to create a prototypical port of Rust to RTEMS for our example target platform (Xilinx Zynq).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">The status is currently the following:<o:p></o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="mso-fareast-language:EN-US">I have a custom target based added to the compiler sources which compiles Rust code for the Zynq<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="mso-fareast-language:EN-US">I ported the stdlib to work with RTEMS (using the POSIX API)<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="mso-fareast-language:EN-US">I ported the libc wrapper for this to work<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
<span lang="EN-US" style="mso-fareast-language:EN-US">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.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">fn add_two_numbers(num1: i32, num2: i32) -> i32 {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"> num1 + num2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">#[test]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">fn test_add_two_numbers() {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"> assert_eq!(add_two_numbers(2, 3), 5);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">pub fn main() -> ! {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"> println!("Hallo from println");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"> println!("2 + 2 = {}", add_two_numbers(2,2));<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"> loop {}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">My next goal is to add those changes to the official Rust repos in order to have it as a Tier3 target platform.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I need to tidy up my commits and have a few open questions regarding naming conventions (I will start a corresponding thread here shortly).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"> Jan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b>Von:</b> Joel Sherrill <joel@rtems.org> <br>
<b>Gesendet:</b> Mittwoch, 20. Dezember 2023 23:38<br>
<b>An:</b> Frank Kühndel <frank.kuehndel@embedded-brains.de><br>
<b>Cc:</b> Molock, Dwaine S. (GSFC-5820) <dwaine.s.molock@nasa.gov>; rtems-users@rtems.org <users@rtems.org>; Sommer, Jan <Jan.Sommer@dlr.de><br>
<b>Betreff:</b> Re: Rust on RTEMS<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Karel Gardas posted in February that he has Rust on RTEMS on an arm. <o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Frank. Are there instructions on building the tools chain somewhere?<o:p></o:p></p>
</div>
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<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">And is Jan Sommer part of the DLR Rust on RTEMS project? <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">--joel<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">On Wed, Dec 20, 2023, 3:59 PM Frank Kühndel <<a href="mailto:frank.kuehndel@embedded-brains.de">frank.kuehndel@embedded-brains.de</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hello Dwaine,<br>
<br>
On 12/20/23 20:41, Molock, Dwaine S. (GSFC-5820) wrote:<br>
> Hello,<br>
><br>
> Has anyone been able to execute Rust on RTEMS?<br>
<br>
Yes – to use RTEMS from within a Rust application, with<br>
<br>
#![no_std]<br>
#![no_main]<br>
<br>
><br>
> If so, is there a how to guide and what architecture and development <br>
hardware was used?<br>
<br>
I have not yet found time to write a documentation despite I want to do <br>
so. Sorry for this. Ferrous Systems first extended Rust to run on <br>
Gaisler SPARC bare metal and then they figured it works with RTEMS 5 <br>
from Gaisler, too. Their documentation is here: <br>
<a href="https://github.com/ferrous-systems/sparc-experiments/" target="_blank">https://github.com/ferrous-systems/sparc-experiments/</a><br>
<br>
I did run my examples only on simulators. I tried two architectures with <br>
RTEMS 6: Leon3 and RISC-V.<br>
<br>
Greetings,<br>
Frank<br>
<br>
-- <br>
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