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fuchsia/third_party/rust/refs/heads/upstream/try-perf
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86f1b498d557edbbacdd1a92ae4d5c2a3310b7e4
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author
Rust timing bot <rust-timer@users.noreply.github.com>
Wed Jun 17 09:03:26 2026 +0200
committer
GitHub <noreply@github.com>
Wed Jun 17 09:03:26 2026 +0200
tree
13a97548e067f660be28277aeb20ac6133e3d76a
parent
1c0f17520a62ebdb757b5015633e0fab2df553a4 [diff]
parent
f638abc2602bc72dab04b044660687a982cc6e86 [diff]
Unrolled build for #157681
Rollup merge of #157681 - pmur:murp/add-instrument_fn-attr, r=oli-obk,mejrs

Add instrument_fn attribute

This attribute enables or disables function instrumentation when using `-Zinstrument-xray` or `-Zinstrument-mcount`.

It supports the following usage:

`#[instrument_fn = "on|off"]`

For XRay, "on" is equivalent to always instrument, and "off" is equivalent to never instrumenting.

For mcount, "on" has no effect. "off" disables instrumentation of the function.

This is tracked by rust-lang/rust#157081, and related to the pending rfc rust-lang/rfcs#3917, and earlier as part mcp rust-lang/compiler-team#561
tree: 13a97548e067f660be28277aeb20ac6133e3d76a
  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.json
  27. README.md
  28. RELEASES.md
  29. REUSE.toml
  30. rust-bors.toml
  31. rustfmt.toml
  32. triagebot.toml
  33. typos.toml
  34. x
  35. x.ps1
  36. x.py
  37. yarn.lock
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.

For a detailed explanation of the compiler's architecture and how to begin contributing, see the rustc-dev-guide.

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.