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fuchsia / third_party / rust / fd96a78092e77be45d5b60cedea0806b70d751fd
commitfd96a78092e77be45d5b60cedea0806b70d751fd[log] [tgz]
authorAlex Crichton <alex@alexcrichton.com>Fri Oct 03 12:14:41 2025 -0700
committerAlex Crichton <alex@alexcrichton.com>Fri Oct 03 13:08:07 2025 -0700
tree8f42bb94010796c2bdf8766546cb26f1314e5e98
parentf437c86ef829e43c6aa27641f53040a999a092af [diff]
Add documentation about unwinding to wasm targets

This commit adds some documentation about the state of `-Cpanic=unwind`
for the following wasm targets:

* `wasm32-unknown-unknown`
* `wasm32-wasip1`
* `wasm32-wasip2`
* `wasm32v1-none`

Notably it's possible to use `-Cpanic=unwind` with `-Zbuild-std` and
it's also mentioned that there are no concrete proposals at this time to
adding a new set of targets which support unwinding. My hunch is that in
a few years' time it would make sense to enable it by default on these
targets (except for `wasm32v1-none`) but that's a problem for
future folks to debate. For now this is an attempt to document the
status quo.
4 files changed
tree: 8f42bb94010796c2bdf8766546cb26f1314e5e98
  1. .github/
  2. compiler/
  3. library/
  4. LICENSES/
  5. src/
  6. tests/
  7. .clang-format
  8. .editorconfig
  9. .git-blame-ignore-revs
  10. .gitattributes
  11. .gitignore
  12. .gitmodules
  13. .ignore
  14. .mailmap
  15. bootstrap.example.toml
  16. Cargo.lock
  17. Cargo.toml
  18. CODE_OF_CONDUCT.md
  19. configure
  20. CONTRIBUTING.md
  21. COPYRIGHT
  22. INSTALL.md
  23. LICENSE-APACHE
  24. license-metadata.json
  25. LICENSE-MIT
  26. package-lock.json
  27. package.json
  28. README.md
  29. RELEASES.md
  30. REUSE.toml
  31. rust-bors.toml
  32. rustfmt.toml
  33. triagebot.toml
  34. typos.toml
  35. x
  36. x.ps1
  37. x.py
README.md

Website | Getting started | Learn | Documentation | Contributing

This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.

Why Rust?

  • Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrated with other languages.

  • Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.

  • Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).

Quick Start

Read “Installation” from The Book.

Installing from Source

If you really want to install from source (though this is not recommended), see INSTALL.md.

Getting Help

See https://www.rust-lang.org/community for a list of chat platforms and forums.

Contributing

See CONTRIBUTING.md.

License

Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.

See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.

Trademark

The Rust Foundation owns and protects the Rust and Cargo trademarks and logos (the “Rust Trademarks”).

If you want to use these names or brands, please read the Rust language trademark policy.

Third-party logos may be subject to third-party copyrights and trademarks. See Licenses for details.