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gnu/gcc/refs/heads/trunk/./libgrust/rustc-lib-patches
tree: 0f3a4a9bf0d7ebc4265f808f57e5b4a5cd1e77da [search]
  1. patches/
  2. README.md
  3. rustc-lib-patch.py
libgrust/rustc-lib-patches/README.md

Rustc lib patches

This directory contains backported patches that are required for Rust for Linux to compile. This is because our current target version for core is 1.49.0, while Rust for Linux requires 1.85.0 (since Linux kernel 7.1).

It should be noted that the patches are intentionally kept separate from the rustc-lib directory that contains version 1.49 of the core library. This is because gccrs is also not only aiming to compile core 1.49, but also currently experimenting with compiling Rust for Linux. Only use the patches in this directory if you are compiling Rust for Linux with gccrs.

Usage

Run rustc-lib-patch.py to apply the patches to the rustc-lib directory in your local GCC repository.

If you want to do it outside of the tree, specify -o to output the patched library directory to a different location without affecting the original rustc-lib directory. For example:

python3 rustc-lib-patch.py -o /path/to/output/rustc-lib

Contributing new patches

  1. First, apply all the existing patches to your local rustc-lib directory with the python script. Make sure that the library is in a clean state (no uncommitted changes) before applying the patches.
  2. Make the necessary changes to the library and run rustc-lib-patch.py --generate 0003-my-new-patch.for-rfl-patch to generate a new patch file.
  3. Submit a pull request with the new patch file added to patches/.

The more advanced git users can just run git diff to generate a patch, but the script ensures that the patch file is generated in a way that is compatible with the existing patches.