rustc_codegen_gcc
unsafe-code-guidelines
rustc_codegen_gcc | unsafe-code-guidelines | |
---|---|---|
49 | 74 | |
874 | 640 | |
1.5% | 1.3% | |
9.7 | 6.9 | |
6 days ago | about 2 months ago | |
Rust | ||
Apache License 2.0 | 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.
rustc_codegen_gcc
-
How hard would it be to port the Rust toolchain to a new non-POSIX OS written in Rust and get it to host its own development? What would that process entail?
Alternatively, there's another initiative called codegen_gcc which is about using GCC as a backend for the rustc compiler. It's (much) more advanced in Rust support, but I am not sure how easy it would be to use a modified libgccjit from there.
-
"Rust makes me never want to touch C again" -- Matthew Ahrens
In addition to what others have said about platform support, Rust is also on its way to gaining more platform support through rustc_codegen_gcc, the GCC codegen backend for rustc, as an alternative to the LLVM backend. That means many of the platforms GCC supports will suddenly become available with Rust.
-
Rust contributions for Linux 6.4 are finally merged upstream!
Yeah, rustc_codegen_gcc is a GCC backend for rustc, and its making a lot of good regular progress.
-
GCC 13 and the State of Gccrs
gcc-rs is one of two projects for bringing Rust to gcc. gcc-rs is the more ambitious of the two, with an entirely new frontend. There is also rustc_codegen_gcc (https://github.com/rust-lang/rustc_codegen_gcc) that keeps the rustc frontend, and only swaps out LLVM for GCC at the codegen stage.
-
rustc_codegen_gcc: Progress Report #22
Fixing unwinding in release mode is still ungoing. I could use some help here, so anyone with some understanding of unwinding, landing pads or GCC, please come on this issue to discuss this.
-
Any alternate Rust compilers?
Additionally, there is gcc codegen for rustc (https://github.com/rust-lang/rustc_codegen_gcc), which is not a compiler per se, but an alternative code generator, with more architectures supported and other nice things. It's also coming along, but there's still a lot of work to do there too. There's also Cranelift codegen (https://github.com/bjorn3/rustc_codegen_cranelift), which is designed to make debug builds faster, but this is not as exciting/useful as the other 2.
-
rustc_codegen_gcc: Progress Report #21
Good idea. I added the tag "help wanted" to the issue.
-
Challenges writing a compiler frontend targeting both LLVM and GCC?
Also, there are indeed ABI issues, e.g. for 128-bit integers and NaN.
-
A brave new world: building glibc with LLVM
I'm excited about both the backend & the frontend.
-
Rust front-end merged in GCC trunk
There is also a project for rustc to use GCC instead of LLVM for codegen.
https://github.com/rust-lang/rustc_codegen_gcc
unsafe-code-guidelines
-
Passing nothing is surprisingly difficult
Useful context on the Rust side is this issue [1]. It sounds like some of the author's concerns are addressed already.
[1]: https://github.com/rust-lang/unsafe-code-guidelines/issues/4...
-
Blog Post: Non-Send Futures When?
Is this captured by one of the known soundness conflicts? If not then should consider adding it to the list.
- Are crates like vcell and volatile cell still unsound?
-
Question: Are there things for Unsafe Rust learn from Zig?
There are some competing proposals for different memory models. Stacked borrows is the current proposal, but there are more work in the approproate WG.
-
Let's thank who have helped us in the Rust Community together!
Thank you /u/RalfJung for bringing formal methods to Rust, both through models like Stacked Borrows, by developing miri, and by working on unsafe-code-guidelines which aims to specify exactly what is and isn't allowed in unsafe code (surprisingly, it's an open question as 2023!)
- Questions about ownership rule
-
Noob Here: Why doesn't this work?
You could imagine some way to make this safe for example automatically convert &'short &'long mut T to &'short &'short T, but it's non-trivial to prove they are safe at all, not to mention ensuring this is correctly implemented in the compiler. If you're interested there's also a discussion on whether the opposite (& & T to & &mut T) is sound here.
-
When Zig is safer and faster than (unsafe) Rust
Agreed! MIRI is so good, it still feels like magic to me. It also comforts me that the Rust team takes improving unsafe semantics seriously, with the past Unsafe Code Guidelines WG and today's operational semantics team (t-opsem).
-
Safety and Soundness in Rust
I think there are some aspects of this rule that are still undecided. See for example:
- https://github.com/rust-lang/unsafe-code-guidelines/issues/8...
- https://github.com/rust-lang/miri/issues/2732
-
I wanna be a crab.
C is much better specified than unsafe Rust. Some things are just not worked out yet in Rust. This may sometimes even bite very experienced devs, such as this issue with Box's aliasing semantics, which tripped up the author of left-right.
What are some alternatives?
gccrs - GCC Front-End for Rust
tokio - A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...
gcc-rust - a (WIP) Rust frontend for gcc / a gcc backend for rustc
rust - Empowering everyone to build reliable and efficient software.
min-sized-rust - 🦀 How to minimize Rust binary size 📦
rfcs - RFCs for changes to Rust
databend - 𝗗𝗮𝘁𝗮, 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗔𝗜. Modern alternative to Snowflake. Cost-effective and simple for massive-scale analytics. https://databend.com
x11rb - X11 bindings for the rust programming language, similar to xcb being the X11 C bindings
compiler-explorer - Run compilers interactively from your web browser and interact with the assembly
bevy - A refreshingly simple data-driven game engine built in Rust
libgccjit-patches - Patches awaiting review for libgccjit
miri - An interpreter for Rust's mid-level intermediate representation