rustc_codegen_gcc
min-sized-rust
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rustc_codegen_gcc | min-sized-rust | |
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49 | 101 | |
866 | 7,410 | |
2.1% | - | |
9.6 | 6.2 | |
8 days ago | about 1 month ago | |
Rust | Rust | |
Apache License 2.0 | MIT License |
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
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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.
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"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.
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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.
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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.
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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.
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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.
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rustc_codegen_gcc: Progress Report #21
Good idea. I added the tag "help wanted" to the issue.
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Challenges writing a compiler frontend targeting both LLVM and GCC?
Also, there are indeed ABI issues, e.g. for 128-bit integers and NaN.
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A brave new world: building glibc with LLVM
I'm excited about both the backend & the frontend.
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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
min-sized-rust
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The Linux Kernel Prepares for Rust 1.77 Upgrade
This is a good guide on building small Rust binaries: https://github.com/johnthagen/min-sized-rust
This talks about going to extreme lengths on making the smallest Rust binary possible, 400 bytes when it was written, https://darkcoding.net/software/a-very-small-rust-binary-ind...
The thing is, you lose a lot of nice features when you do this, like panic unwinding, debug symbols, stdlibโฆ for kernel and some embedded development itโs definitely important, but for most use cases, does it matter?
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Rust wont save us, but its ideas will
Oh it was 137, haha. I will link you to this older comment of mine: https://news.ycombinator.com/item?id=29408906
See also https://github.com/johnthagen/min-sized-rust
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Making Rust binaries smaller by default
Are you sure? If so then this is awesome news, but I'm a bit confused; the commit in that min-sized-rust repo adding `build-std` to the README was merged in August 2021: https://github.com/johnthagen/min-sized-rust/pull/30
Are you saying that at that point the feature still hadn't "landed in Rust nightly" until recently? If so then what's the difference between a feature just being available in Rust nightly, vs having "landed"?
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Was Rust Worth It?
Rust binaries are by default nowhere close to 500MB. If they are not small enough for you, you can try https://github.com/johnthagen/min-sized-rust. By avoiding the formatting machinery and using `panic_immediate_abort` you can get about the size of C binaries.
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Compiling Rust binaries for Windows 98 SE and more: a journey
A useful reference: https://github.com/johnthagen/min-sized-rust
- How to minimize Rust binary size
- Error on flashing embedded code to stm32f103
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Tiny Binaries (2021)
That must be without stripping. Also there are ways to reduce binary size. See e.g. [min-sized-rust](https://github.com/johnthagen/min-sized-rust). I've gotten stripped binaries of small cli utils less than 400KiB without doing anything special, less than 150 KiB by customizing profile settings and compressing with upx, and less than 30 KiB by replacing the std with the libc as the link shows. Haven't tried with fltk though...
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Shared libraries
This is not quite what you're asking, but it does also address the underlying concern: https://github.com/johnthagen/min-sized-rust
What are some alternatives?
gccrs - GCC Front-End for Rust
smartstring - Compact inlined strings for Rust.
gcc-rust - a (WIP) Rust frontend for gcc / a gcc backend for rustc
Cargo - The Rust package manager
databend - ๐๐ฎ๐๐ฎ, ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ & ๐๐. Modern alternative to Snowflake. Cost-effective and simple for massive-scale analytics. https://databend.com
c2rust - Migrate C code to Rust
compiler-explorer - Run compilers interactively from your web browser and interact with the assembly
regex - An implementation of regular expressions for Rust. This implementation uses finite automata and guarantees linear time matching on all inputs.
libgccjit-patches - Patches awaiting review for libgccjit
embedded-graphics - A no_std graphics library for embedded applications
avr-hal - embedded-hal abstractions for AVR microcontrollers
tiny-rust-executable - Using Rust to make a 137-byte static AMD64 Linux executable