linux-kernel - Re: Prebuilt LLVM 18.1.0-rc2 uploaded

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Date: Tue, 13 Feb 2024 21:37:13 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Nathan Chancellor <nathan@...nel.org>
Cc: llvm@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: Prebuilt LLVM 18.1.0-rc2 uploaded

On Tue, Feb 13, 2024 at 3:53 AM Nathan Chancellor <nathan@...nel.org> wrote:
>
> Alright, I reuploaded 18.1.0-rc2 with libclang.so included, please let
> me know if this will work for you going forward.

Thanks Nathan, that was quick!

I tried it, and it worked like a charm. bindgen reports:

    $ bindgen --version --verbose
    bindgen 0.65.1
    Clang: ClangBuiltLinux clang version 18.1.0rc
(https://github.com/llvm/llvm-project.git
c6c86965d967886ca5a2ed8968c949cd42cdd49a)

 And I built next-20240213 for LoongArch kernel with Rust enabled:

    # Linux/loongarch 6.8.0-rc4 Kernel Configuration
    CONFIG_CC_VERSION_TEXT="ClangBuiltLinux clang version 18.1.0rc
(https://github.com/llvm/llvm-project.git
c6c86965d967886ca5a2ed8968c949cd42cdd49a)"
    CONFIG_WERROR=y
    CONFIG_RUST=y
    CONFIG_RUSTC_VERSION_TEXT="rustc 1.75.0 (82e1608df 2023-12-21)"
    CONFIG_BINDGEN_VERSION_TEXT="bindgen 0.65.1"

I also built our rust-next branch for x86_64 and QEMU-boot tested it
with the couple Rust samples:

    [ 0.000000] Linux version 6.8.0-rc1-gf090f0d0eea9
(root@...0b7650ba6) (ClangBuiltLinux clang version 18.1.0rc
(https://github.com/llvm/llvm-project.git
c6c86965d967886ca5a2ed8968c949cd42cdd49a), ClangBuiltLinux LLD 18.1.0)
#1 SMP PREEMPT_DYNAMIC Tue Feb 13 20:14:57 UTC 2024
    [ 1.788925] rust_minimal: My numbers are [72, 108, 200]

I have hooked it up into my small CI to keep using your toolchain in a
subset of the builds :)

Not sure if you pick tags for this sort of thing, but in case it is useful:

    Tested-by: Miguel Ojeda <ojeda@...nel.org>

Thanks again!

Cheers,
Miguel