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rust / rust-lang / rust / 379979951ed3610d31f63222a479fbcafabe0151
commit379979951ed3610d31f63222a479fbcafabe0151[log] [tgz]
authorMatthias Krüger <476013+matthiaskrgr@users.noreply.github.com>Mon Sep 29 21:42:44 2025 +0200
committerGitHub <noreply@github.com>Mon Sep 29 21:42:44 2025 +0200
tree430301bed6a9de688c2d62439900fb505bd62713
parent967e64279ac2695b1767f226d5b6e5cada3d67f4 [diff]
parentaf8fd78142bf394ac904402adb736f4c2f1efbc6 [diff]
Rollup merge of #147150 - nikic:alloc-shim-attributes, r=bjorn3

Emit allocator attributes for allocator shim

This emits the same attributes we place on allocator declarations on the definitions in the allocator shim as well. This complements https://github.com/rust-lang/rust/pull/146766, which added the attribute for `#[global_allocator]` definitions. Emitting the attributes on the definitions ensures that they cannot be lost of the allocator shim participates in LTO.

See https://github.com/rust-lang/rust/issues/145995 for context, though that one was about `#[global_allocator]`. I'm not sure whether this can occur with the allocator shim as well or not, but better safe than sorry.

I'm not sure whether there is any good way to test this, as the allocator shim is not part of `--emit=llvm-ir`. I've verified this locally by inspecting the bitcode produced by `-C save-temps`.

r? ``@bjorn3``
tree: 430301bed6a9de688c2d62439900fb505bd62713
  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

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