Using rust (https://www.rust-lang.org) in user applications on top of seL4 with existing C libaries and apps now has limited support.
See here for more information: https://wiki.sel4.systems/Rust What you can do: + Build system support for using a rust cargo project as a library or app on seL4 + Use most core libraries (core, alloc, collections, rustc_unicode, and a limited std) + Use rust dependencies from crates.io on seL4 + Use rust to implement camkes components + Using rust's FFI support it is possible to call rust from C and C from rust. Two sample apps are located here: https://github.com/SEL4PROJ/rust-camkes-samples Instructions for building and running are on the wiki page. Has been tested on x86 i386 and arm kzm both in qemu and hardware. Caveats: + Rust's libstd functionality is limited by which muslc syscalls are supported on seL4. + Rust's libstd requires muslc thread local storage support which is not currently available on seL4. We currently use a muslc branch called rust that uses a global TLS struct. Kent McLeod Kernel engineer / Thesis Student DATA61 | CSIRO
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