[seL4] Re: Bitfield generator EBNF grammar

At the moment, we're attempting to keep parity with the existing libsel4 library by re-using the existing scripts to generate things where we can, modulo some changes to the bitfield_gen.py to generate rust code. You can see what we're building at < https://github.com/AmbiML/sparrow-cantrip-full/tree/main/apps/system/compone...

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On Tue, Mar 21, 2023 at 4:57 PM Nick Spinale wrote:

Hello June,

The Rust libraries I've been working on for the seL4 Foundation include a bitfield parser [1] and corresponding Rust code generator [2].

I'd be interested in learning more about these bindings you are working on. What kind of API are you envisioning?

Best, Nick

[1] https://gitlab.com/coliasgroup/rust-seL4/-/tree/main/crates/sel4/bitfield-pa... [2] https://gitlab.com/coliasgroup/rust-seL4/-/tree/main/crates/sel4/sys/build/b...

On Tue, Mar 21, 2023 at 4:01 PM June Tate-Gans (ジューン) via Devel wrote:

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Hey guys,

I've been attempting to put together some rust bindings for the seL4 fault handling mechanisms, and I'm afraid the bitfield generator is driving me a bit up a wall at this point. I'd like to find a concise grammar for the language so I can better understand how bitfield_gen.py works, but there doesn't seem to be any explicit BNF for it anywhere.

Is there a paper I should be reading or a reference guide somewhere that would help?

Thanks!

-- June Tate-Gans Software Engineer Techlead, Kata OS / AmbiML, Google _______________________________________________ Devel mailing list -- devel@sel4.systems To unsubscribe send an email to devel-leave@sel4.systems

-- June Tate-Gans Software Engineer Techlead, Kata OS / AmbiML, Google