Bumping this, because my deadline for choosing a master's project is 25th.

Would appreciate it if somebody could give me a brief answer about my
concerns with regards to the runtimeless rust thing, at least. If I am
unclear please ask for clarifications.

It's mainly about getting help with formulating a set of targets (bundle of
issues) given my resources so i can submit a proposal. If I can't do that
in the time left, I will have to choose something else.

Many thanks,
Dan




On Thu, Oct 17, 2013 at 11:04 AM, Dan Cristian Octavian <
[email protected]> wrote:

> Hello,
>
> I've spend some time looking at proposed master's projects by my uni to
> understand how this one compares and to understand the time resources that
> I have available (roughly 3 months of solid work and roughly 3 months of
> part-time during term-time work until project submission deadline, of
> course i could continue working afterwards to get things done ):
>
> Correct me if I'm wrong on the following:
> the main issues about runtimeless rust are:
> * supporting std functionality (to various degrees depending on the
> environment)
> * the stacks issue
>
> One of my concerns is that suppose I choose to do this, it's part of an
> active development effort and the aforementioned issues seem to be
> connected to many other problems (the stack problem) and it's kind of hard
> to just crop a big issue out and say "yup this is a standalone project, you
> go do it". I am just worried I will have a hard time saying "I've done
> this" and I will only be able to say "I've been a contributor to Rust for a
> while working mainly on this" and that doesn't add up to be a master's
> project. I would really like to work on this, though. Do you think it can
> be formulated as a set of targets that are useful to the Rust project (they
> are actually used) and at the same time constitute a valid master's
> project?
>
> Would picking an issue that is milestoned for after 1.0 release be a good
> cure for this problem since their are not as interconnected with currently
> developed features?  I've browsed through the interesting-project tagged
> issues. Aside from runtimeless I was interested in the following:
>
> compile time stack size https://github.com/mozilla/rust/issues/4389
> proper REPL https://github.com/mozilla/rust/issues/9898
> parallel multi-crate compiler driver
> https://github.com/mozilla/rust/issues/3431
> sandboxing for tasks on linux https://github.com/mozilla/rust/issues/6811
>
> But there's also the issue of having something sizeable enough.
> Again any suggestions welcome.
>
> Many thanks,
>
> Dan
>
>
>
> On Tue, Oct 1, 2013 at 12:07 PM, Alex Crichton <[email protected]> wrote:
>
>> > One of my first thoughts when I saw the Rust project was to make it
>> > runtimeless. Shortly after that was achieved rather trivially with
>> zero.rs.
>> > I don't know if any major improvement can be done there.
>>
>> As others have said, I don't believe that Rust is currently at the
>> point of being "runtimeless". In addition to what Brian mentioned
>> about not being able to use core-language features easily (vectors,
>> strings, convenient I/O), the story of stacks is also a little sad in
>> runtimeless rust. Currently a "runtimeless" program is still forced to
>> link to librustrt along with our own libmorestack to provide the
>> __morestack function needed by LLVM's segmented stacks. It always
>> seemed a little silly to me that "runtimeless" rust still links to the
>> runtime...
>>
>> Various bits of discussion can be found on
>>
>> https://github.com/mozilla/rust/pull/8955
>> https://github.com/mozilla/rust/issues/8345
>>
>> But in summary the story of how stacks are allocated is currently not
>> sufficient for writing something like a kernel module or a kernel
>> itself. I do believe that this is certainly within the realm of
>> possibility, but it certainly needs to be done carefully. I'm not sure
>> if it's too small of a master's project, but I personally consider
>> this to be a fairly substantial undertaking to get right. The various
>> modes discussed in those two issues would be useful to have.
>>
>> This also may not be limited to a runtimeless rust, because the
>> current stack situation is a bit in flux with rust currently. Our
>> segmented stacks are disabled in the new runtime (not implemented yet)
>> and there's some unease about the fixed_stack_segment macro and how it
>> can be more useful.
>>
>> For reference, here's some issues:
>>
>> Runtimeless rust: https://github.com/mozilla/rust/issues/3608
>> newsched segmented stacks: https://github.com/mozilla/rust/issues/6844
>> revised stack attributes: https://github.com/mozilla/rust/issues/8822
>>
>
>
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