Hello, Personally, I really like this idea.
I'm not yet a Rust programmer but I am happy to learn... and perhaps there are others like me that would take this as an opportunity to learn while doing something like porting a Grub module from C to Rust if we had that framework in place. It seems like a nice way to hopefully eliminate or reduce certain kinds of bugs as well. It may also be a nice opportunity to make some common processes with the Rust community like perhaps using rustfmt as the coding standard to reduce burden on developers and maintainers to deal with formatting and focus on functionality. I like that you have a small demo module as well in what you did, it shows a nice starting point for people wanting to take on a module if this gains traction like I hope it will. Thanks! Andrew On Fri, Mar 21, 2025 at 3:53 PM Vladimir 'phcoder' Serbinenko <phco...@gmail.com> wrote: > > Hello, I was playing with adding Rust embedded in GRUB. I’ve pushed results > to 2 repos: > Module goes to https://github.com/phcoder/grub-rust-hello/tree/master > Changes in GRUB are found at https://github.com/phcoder/GRUB/tree/rust > Notes on implementation: > Only i386-pc is implemented right now but it’s not a technical limit, just > others are not implemented yet. > I changed GRUB to use ET_DYN (.so) binaries as modules instead of ET_REL (.o). > I disabled mregparm=3. -Z regparm=3 in Rust generally works but the calls to > memcpy() still uses regparm=0 calling convention. Perhaps it’s a bug on Rust > side, perhaps we need an adapter on our side. > It’s compiled with panic=abort. Unwinding panics require rust_eh_personality > that isn’t implemented yet. > src/lib.rs is an example of hello world and grub_lib.rs is a grub-rust > adapter. Ideally they should be in separate crates > Every module now pulls in rust runtime. Idk how to switch to a shared runtime > Consider it more an experiment and request for comments than a working > product. I would be interested to hear any comments. Especially it’s > interesting to hear from Rust folks as to how to make it more idiomatic Rust. > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
