bors
ecc189922d
CI: Add LTO support to clang in dist-x86_64-linux After https://github.com/rust-lang/cc-rs/pull/1279, we attempt to pass `-flto=thin` to clang. In `dist-x86_64-linux`, we don't build clang with the `LLVMgold.so` library so this fails. This attempts to resolve this First, pass the binutils plugin include directory to Clang, [which will build the library](https://github.com/llvm/llvm-project/blob/2d6d723a85c2d007b0359c206d66cd2e5a9f00e1/llvm/docs/GoldPlugin.rst#how-to-build-it) Second, this library depends on the *version of libstdc++ that we built* specifically. However, despite both the RPATH and LD_LIBRARY_PATH pointing to `/rustroot/lib`, we incorrectly resolve to the system libstdc++, which doesn't load. ``` # LD_DEBUG=libs,files 2219: file=libstdc++.so.6 [0]; needed by /rustroot/bin/../lib/LLVMgold.so [0] 2219: find library=libstdc++.so.6 [0]; searching 2219: search path=/rustroot/bin/../lib/../lib (RPATH from file /rustroot/bin/../lib/LLVMgold.so) 2219: trying file=/rustroot/bin/../lib/../lib/libstdc++.so.6 2219: search path=/usr/lib64/tls:/usr/lib64 (system search path) 2219: trying file=/usr/lib64/tls/libstdc++.so.6 2219: trying file=/usr/lib64/libstdc++.so.6 ``` Using `LD_PRELOAD` causes it to correctly load the library I think this is probably not the most maintainable way to do this, so opening to see if this is desired and if there's a better way of doing this
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 media guide.
Third-party logos may be subject to third-party copyrights and trademarks. See Licenses for details.