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rust/rust/a07bd236bdb47d165c9c7f62e35e2a9a3d773ad6
commit
a07bd236bdb47d165c9c7f62e35e2a9a3d773ad6
[log]
author
WANG Rui <wangrui@loongson.cn>
Thu Nov 13 23:51:01 2025 +0800
committer
WANG Rui <wangrui@loongson.cn>
Mon Dec 15 14:37:25 2025 +0800
tree
b1a425d85224ae5a0e9131f9bbe0f66c0f8f9d79
parent
0208ee09be465f69005a7a12c28d5eccac7d5f34 [diff]
rustc_target: Add `efiapi` ABI support for LoongArch

This commit adds basic `efiapi` ABI support for LoongArch by recognizing
`extern "efiapi"` in the ABI map and inline asm clobber handling, and
mapping it to the C calling convention.

This change is intentionally submitted ahead of the full LoongArch UEFI
target support. While UEFI binaries are ultimately produced as PE images,
LoongArch UEFI applications can already be developed by building ELF
objects, applying relocation fixups, and converting them to PE in a
later step. For such workflows, having `efiapi` properly recognized by
the compiler is a prerequisite, even without a dedicated UEFI target.

Landing this ABI support early helps unblock LoongArch UEFI application
and driver development, and allows the remaining UEFI-specific pieces to
be introduced incrementally in follow-up patches.

MCP: https://github.com/rust-lang/compiler-team/issues/953
2 files changed
tree: b1a425d85224ae5a0e9131f9bbe0f66c0f8f9d79
  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.

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

Contributing

See CONTRIBUTING.md.

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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.

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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.