From: Miguel Ojeda Date: Fri, 15 Dec 2023 12:47:51 +0000 (+0100) Subject: docs: rust: remove `CC=clang` mentions X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7583ce66ddf7ed4f7aaa14b5e4cf78058ca597e1;p=linux.git docs: rust: remove `CC=clang` mentions Nowadays all architectures except s390 recommend using `LLVM=1` instead of `CC=clang`, and since commit a3c6bfba4429 ("Documentation/llvm: refresh docs") the Kbuild LLVM documentation makes `LLVM=1` the way to go: We want to encourage the use of ``LLVM=1`` rather than just ``CC=clang``. Make that suggestion "above the fold" and "front and center" in our docs. In particular, that commit removes the examples with `CC=clang`. Thus do the same in the Rust Quick Start guide, i.e. remove the `CC=clang` mentions, especially since the architectures that have had their Rust support upstreamed (or soon to be upstreamed) are all `LLVM=1` ones. And perhaps by the time Rust is supported for s390 (or new architectures), it may have moved to `LLVM=1` anyway. Otherwise, this can be added back if needed (or perhaps an extra link to Documentation/kbuild/llvm.rst). This should also help avoiding potential confusion around `CC=clang` [1]. Link: https://lore.kernel.org/rust-for-linux/6df6e8e5-8d5b-4d3d-91b5-bc0e90c424ea@nvidia.com/ [1] Reviewed-by: Ariel Miculas Reviewed-by: Nathan Chancellor Reviewed-by: Alice Ryhl Reviewed-by: Benno Lossin Reviewed-by: Justin Stitt Reviewed-by: John Hubbard Reviewed-by: Martin Rodriguez Reboredo Link: https://lore.kernel.org/r/20231215124751.175191-1-ojeda@kernel.org Signed-off-by: Miguel Ojeda --- diff --git a/Documentation/rust/quick-start.rst b/Documentation/rust/quick-start.rst index f382914f41917..75faa987079aa 100644 --- a/Documentation/rust/quick-start.rst +++ b/Documentation/rust/quick-start.rst @@ -76,7 +76,7 @@ libclang ``libclang`` (part of LLVM) is used by ``bindgen`` to understand the C code in the kernel, which means LLVM needs to be installed; like when the kernel -is compiled with ``CC=clang`` or ``LLVM=1``. +is compiled with ``LLVM=1``. Linux distributions are likely to have a suitable one available, so it is best to check that first. @@ -229,10 +229,6 @@ at the moment. That is:: make LLVM=1 -For architectures that do not support a full LLVM toolchain, use:: - - make CC=clang - Using GCC also works for some configurations, but it is very experimental at the moment.