min-sized-rust
scapegoat
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min-sized-rust | scapegoat | |
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101 | 5 | |
7,410 | 236 | |
- | - | |
6.2 | 0.0 | |
about 1 month ago | about 2 years ago | |
Rust | Rust | |
MIT License | MIT License |
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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, stdlib… for kernel and some embedded development it’s 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
scapegoat
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10-12x smaller executable footprint than `std::collections::BTreeMap` - accurate?
Woah that made a huge difference! Thanks for taking the time to try that out and type it up. Was able to retrace your steps and get the same 8.4KB result. I've updated the writeup again.
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no_std dups
IndexMax is not used directly and the one that is used directly is dynamic. https://github.com/tnballo/scapegoat is closer, but, still does not take advantage of const (uses rebalancing)
What are some alternatives?
smartstring - Compact inlined strings for Rust.
heapless - Heapless, `static` friendly data structures
Cargo - The Rust package manager
cortex-a - Low level access to Cortex-A processors
rustc_codegen_gcc - libgccjit AOT codegen for rustc
bst-rs - Recursive & Iterative Binary Search Tree Implementations within Rust
c2rust - Migrate C code to Rust
xargo - The sysroot manager that lets you build and customize `std`
regex - An implementation of regular expressions for Rust. This implementation uses finite automata and guarantees linear time matching on all inputs.
option-block - A minimal utility Rust crate for small, fixed-size blocks of optional types.
embedded-graphics - A no_std graphics library for embedded applications
bitfield-struct-rs - Procedural macro for bitfields.