rust/tests/codegen/function-return.rs, branch 1.77.1https://github.com/rust-lang/rust
http://git.dreamy.place/mirrors/rust/atom?h=1.77.12023-11-30T19:21:31+00:00Add `-Zfunction-return={keep,thunk-extern}` option2023-11-30T19:21:31+00:00Miguel Ojedaojeda@kernel.org2023-10-18T14:58:17+00:00urn:sha1:2d476222e8458aa873e6760aac189b5e9d0a9930
This is intended to be used for Linux kernel RETHUNK builds.
With this commit (optionally backported to Rust 1.73.0), plus a
patched Linux kernel to pass the flag, I get a RETHUNK build with
Rust enabled that is `objtool`-warning-free and is able to boot in
QEMU and load a sample Rust kernel module.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>