rust
heapless
rust | heapless | |
---|---|---|
5 | 4 | |
5 | 1,387 | |
- | 1.2% | |
0.0 | 8.7 | |
2 days ago | 29 days ago | |
Rust | Rust | |
GNU General Public License v3.0 or later | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
rust
-
[Help] How do I port Rust to a new OS where there is no LLVM support?
For what it's worth, this is the script I'm using to build for our platform: build.ps1 / build.sh
-
Can i create a rust compiler for my custom made OS?
Note that before I got the target triple upstream, I had to provide my own target json file. That's here: https://github.com/betrusted-io/rust/blob/1.53.0-xous/riscv32imac-unknown-xous-elf.json and you can adapt it as necessary. Simply creating the file in the correct path is enough. This is the code that does that: https://github.com/betrusted-io/rust/blob/e39344c5473d49a0cb4d45de119ad23713a00ed4/rebuild.ps1#L65
-
How to fully replace/reimplement std?
Everything you need to know to build for our platform is at https://github.com/betrusted-io/rust/ and maybe the scripts or patches there will be interesting to you.
-
Rust: A Critical Retrospective
Rust does use a Rust port of dlmalloc on platforms that don't provide malloc() and free(). We did port this to Xous, but ran into a feature bug that caused locking to be disabled. That was the source of weird and subtle bugs, which is how he discovered that fact about allocators.
This is correct.
When you tell someone to install Rust, they go to rustup.rs and install the latest version. Therefore, we need to have a libstd port for the latest version. Which effectively means we need to release libstd as soon as possible after the compiler is released. Our `sys` directory is at https://github.com/betrusted-io/rust/tree/1.61.0-xous/librar... and isn't too complicated. It's about 50 patches that need to be carried forward every six weeks.
Fortunately libstd doesn't change too much, at leaset not the parts we need. And I can usually pre-port the patches by applying them to `beta`, which means the patches against the release version usually apply cleanly.
It's still better than requiring nightly, which has absolutely no stability guarantees. By targeting stable, we don't run into issues of bitrot where we accidentally rely on features that have been removed. Rather than adjusting every service in the operating system, we just need to port one library: libstd
I've considered trying to upstream these, but I'm not sure how the rust team would feel about it.
heapless
- """may_dangle""" stabilization
-
Rust: A Critical Retrospective
> we did not have Vec because we were no-std + stable so we literally had to use arrays
It's true that Vec isn't available in a no-std context, but don't think it follows that arrays are the only other option - see heapless for one example: https://github.com/japaric/heapless
I also agree with some of the ancestors: the post seems to say that the Rust language couldn't handle arrays with more than 32 elements, and (as someone who's written a fair bit of no-std Rust before const generic) that doesn't seem right. At first, this did seem awkward to me as well, but in practice I haven't found it to be a significant limitation. Was there a particular scenario where it wasn't feasible to wrap a >32 element array in your own type and implement Default on it?
-
Now that the long-awaited const generics (MVP) have come to stable in 1.51, what crates are going to gain the most from it?
It's happening
-
Writing a proposal to use Rust at work
heapless has both SPSC and MPMC channels that work on embedded
What are some alternatives?
jnode - Code for the JNode operating system
tinyvec - Just, really the littlest Vec you could need. So smol.
FreeRTOS-rust - Rust crate for FreeRTOS
blisp - A statically typed Lisp like scripting programming language for Rust.
snapbox - Snapshot testing for CLIs
scapegoat - Safe, fallible, embedded-friendly ordered set/map via a scapegoat tree. Validated against BTreeSet/BTreeMap.
xargo - The sysroot manager that lets you build and customize `std`
utils - Utility crates used in RustCrypto
wg-cargo-std-aware - Repo for working on "std aware cargo"
regex-automata - A low level regular expression library that uses deterministic finite automata.
miri - An interpreter for Rust's mid-level intermediate representation
cassette - A simple, single-future, non-blocking executor intended for building state machines. Designed to be no-std and embedded friendly.