03:52 <davidlt[m]> Kernel build finished overnight!

04:29 <davidlt[m]> kernel-tools are cooking, kernel-headers are up-to-date.

11:07 <davidlt[m]> Conan Kudo: I assume Fedora Asahi needs CONFIG_RUST=y. Did you try enabling that on top of 6.2?

11:07 <Eighth_Doctor> yes

11:07 <Eighth_Doctor> it currently works for aarch64 and is broken for other arches

11:08 <davidlt[m]> I see

11:08 <Eighth_Doctor> https://copr.fedorainfracloud.org/coprs/g/asahi/kernel-edge/build/5793535/

11:09 <Eighth_Doctor> I broke the x86 kernel build with rust enabled

11:09 <davidlt[m]> I might try to enable that in riscv64 land after LLVM 16 + new Rust.

11:10 <Eighth_Doctor> https://gitlab.com/fedora-asahi/kernel-asahi/-/commits/fedora-asahi-edge-6.2?ref_type=heads

11:11 <Eighth_Doctor> this is my commit stack on top of the Fedora 6.2.11 kernel

11:12 <Eighth_Doctor> a number of the non-upstream commits include fixing the build with Rust 1.66+ and supporting current bindgen

11:12 <Eighth_Doctor> upstream r4l only supports rust 1.57 and bindgen 0.56

11:12 <Eighth_Doctor> and doesn't compile on Fedora at all

11:14 <davidlt[m]> Ah, annoying

11:16 <Eighth_Doctor> that's why I haven't submitted any of it to ARK

11:16 <Eighth_Doctor> everything around rust for linux is a fragile mess

11:16 <Eighth_Doctor> it breaks every time the compiler is updated because they use rust nightly features

11:18 <davidlt[m]> I think I saw an email about increasing required Rust version

11:18 <davidlt[m]> Some of needed stuff is no longer nightly IIUC

11:26 <Eighth_Doctor> yeah, this was after complaints about holding back for the compiler in Debian 11

13:48 <thefossguy> On the Ubuntu side, compiling with Rust support finishes without any errors but when I try to build the out of tree module for it, the module's Makefile says that some rust-specific file was not found in the kernel tree.

13:48 <thefossguy> <Eighth_Doctor> "I broke the x86 kernel build..." <- I have a PKGBUILD on the Arch Linux side with the latest 6.3 RC (i guess its -rc7) which builds fine just fine with Rust support enabled. I can even build the out of tree module and insmod it, but the `rust-analyzer` make target is "not found" when building but I see it in the Makefile!

13:48 <thefossguy> TL;DR: I sympathise :)

13:50 <Eighth_Doctor> Yeah, it's difficult right now...

13:51 <thefossguy> Plus, I'm using rustup to install the rustc version that is mentioned in the kernel scripts

13:51 <thefossguy> rustup override set $(scripts/min-tool-version.sh rustc)

13:57 <Eighth_Doctor> Right, I'm not doing that

13:58 <thefossguy> More info here, just in case: https://docs.kernel.org/rust/quick-start.html

13:58 <Eighth_Doctor> I'm trying to use the latest rust compiler

13:58 <Eighth_Doctor> Since that's what we ship in Fedora

13:59 <thefossguy> Use the correct version of rustc: `rustup override set $(scripts/min-tool-version.sh rustc)`

13:59 <thefossguy> Get some components: `rustup component add rust-src rustfmt clippy`

13:59 <thefossguy> Get the correct version of bindgen: `cargo install --locked --version $(scripts/min-tool-version.sh bindgen) bindgen`

13:59 <thefossguy> Finally, check if Rust support is even available: make LLVM=1 rustavailable

14:00 <thefossguy> On both Arch and Ubuntu, I had to install these packages for the kernel to even compile: llvm clang lld rustc (rustc is not present in ubuntu though)