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许杰友 Jieyou Xu (Joe) e07d18fb2f
Rollup merge of #123423 - kjetilkjeka:llvm_bitcode_linker_component, r=Mark-Simulacrum 
Distribute LLVM bitcode linker as a preview component

The self-contained LLVM bitcode linker was recently added in #117458. It is currently only in use to link the Nvidia ptx assembly tests when running rustc tests (local or CI). In fact, the linker itself is currently only usable for the `nvptx64-nvidia-cuda` target, but more targets will be supported in the future.

The reason a new linker was needed for the ptx format is that the [old one](https://github.com/denzp/rust-ptx-linker) has not been updated the last few years. It worked fine for a while, but as LLVM changed it broke and the nvptx tests was [disabled in rustc back in 2019](f8f9a2869c). It was ad-hoc patched and have been used in a sub-optimal state by the community until now.

If this PR is merged, the LLVM bitcode linker will be distributed as a preview component that can be used as a replacement for the old ptx-linker for development in addition to rustc tests. In addition to installing the `llvm-bitcode-linker` component, also the `llvm-tools` component must be installed as the `llvm-bitcode-linker` works by calling llvm tools.

Even though the LLVM bitcode linker is in its early stages it already now provides a lot of value over the old ptx-linker just by working and using up-to-date llvm tooling. By shipping it as a component it will be easier to gather user experience and improving it.

``@petrochenkov`` when installing as a component it will be installed in the self-contained folder and will not work with `-Clink-self-contained=no` (although for some reason I expect to be a bug `-Clink-self-contained=-linker` doesn't properly disable it). However, when building using `x.py build` it will be placed in the `lib/rustlib/<target>/bin` directory and will be available for internal tests even if `-Clink-self-contained=no` is passed.

CC: ``@Mark-Simulacrum`` as I very briefly discussed it with you some months ago https://rust-lang.zulipchat.com/#narrow/stream/242791-t-infra/topic/.E2.9C.94.20How.20to.20ship.20a.20new.20tool.20.28embedded.20linker.29.20to.20users.3F
2024-04-15 16:56:13 +01:00
.github CI: Redirect stderr to stdout to order GHA logs 2024-04-02 12:08:47 +02:00
.reuse std: move Once implementations to sys 2024-03-12 15:41:06 +01:00
compiler Auto merge of #115717 - jsgf:stablize-json-unused-externs, r=oli-obk 2024-04-15 10:11:46 +00:00
library Auto merge of #123851 - NobodyXu:patch-1, r=BurntSushi 2024-04-15 12:32:57 +00:00
LICENSES Add missing CC-BY-SA-4.0. 2023-11-27 11:03:53 +00:00
src Distribute LLVM bitcode linker as a preview component 2024-04-15 15:11:28 +02:00
tests Auto merge of #115717 - jsgf:stablize-json-unused-externs, r=oli-obk 2024-04-15 10:11:46 +00:00
.editorconfig Only use max_line_length = 100 for *.rs 2023-07-10 15:18:36 -07:00
.git-blame-ignore-revs Ignore compiletest test directive migration commits 2024-02-22 18:55:02 +00:00
.gitattributes Rename config.toml.example to config.example.toml 2023-03-11 14:10:00 -08:00
.gitignore don't globally ignore rustc-ice files 2023-09-16 09:44:44 +02:00
.gitmodules Update to LLVM 18 2024-02-13 10:33:40 +01:00
.mailmap Rollup merge of #123873 - cuviper:mailmap, r=lqd 2024-04-13 00:18:47 -04:00
Cargo.lock Auto merge of #123719 - RalfJung:compiler_builtins, r=Mark-Simulacrum 2024-04-14 18:42:50 +00:00
Cargo.toml Remove debuginfo from rustc-demangle too 2024-04-07 19:19:11 -04:00
CODE_OF_CONDUCT.md Remove the code of conduct; instead link https://www.rust-lang.org/conduct.html 2019-10-05 22:55:19 +02:00
config.example.toml Rollup merge of #123642 - onur-ozkan:restrict-llvm-option, r=Mark-Simulacrum 2024-04-13 16:42:04 +02:00
configure Ensure ./configure works when configure.py path contains spaces 2024-02-16 18:57:22 +00:00
CONTRIBUTING.md fix: Update CONTRIBUTING.md recommend -> recommended 2023-11-16 23:57:09 +05:30
COPYRIGHT Update COPYRIGHT file 2022-10-30 10:23:14 -04:00
INSTALL.md chore: fix some comments 2024-03-27 22:32:53 +08:00
LICENSE-APACHE Remove appendix from LICENCE-APACHE 2019-12-30 14:25:53 +00:00
LICENSE-MIT LICENSE-MIT: Remove inaccurate (misattributed) copyright notice 2017-07-26 16:51:58 -07:00
README.md Use SVG logos in the README.md. 2024-04-03 19:48:20 +02:00
RELEASES.md update release notes 2024-04-09 01:20:11 +02:00
rust-bors.toml Increase timeout for new bors bot 2024-03-13 08:31:07 +01:00
rustfmt.toml Remove exception for deleted file from rustfmt.toml 2024-03-08 20:46:33 +00:00
triagebot.toml Rollup merge of #123519 - Urgau:session-cfg-check-cfg-improvements, r=wesleywiser 2024-04-06 08:56:35 +02:00
x Make x capable of resolving symlinks 2023-10-14 17:53:33 +03:00
x.ps1 use & instead of start-process in x.ps1 2023-12-09 09:46:16 -05:00
x.py Fix recent python linting errors 2023-08-02 04:40:28 -04:00

README.md

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 integrate 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 media guide.

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