Oh & I'm glad to see that stuff go, Niko. I've been in & around that code recently.
In fact, it seems your changes here may be headed for a bunch of conflicts with my work on https://github.com/mozilla/rust/issues/6575 -- perhaps I should defer doing more work until these changes land. Any ETA on that? Cheers, Tom On Thu, May 23, 2013 at 6:33 PM, Niko Matsakis <n...@alum.mit.edu> wrote: > Shim functions are an artifact of how we compiled foreign functions. > They are explained a comment in <trans/foreign.rs>. They are not long > for this world, though: https://github.com/mozilla/rust/pull/6661 > > > Niko > > On Thu, May 23, 2013 at 03:33:24AM -0700, Tom Lee wrote: > > Hey Rustlers, > > > > I'm fighting with issue #6575 > > <https://github.com/mozilla/rust/issues/6575> which > > involves the removal of a useless function parameter emitted during the > > trans phase. I've got a WIP available > > here<https://github.com/thomaslee/rust/commit/issue-6575>if anybody's > > interested, though it does right now is segfault. :) I > > *think *the segfault is the result of me getting something silly wrong & > > somehow the stack is getting messed up in the process (and/or something > is > > getting prematurely collected). > > > > In any case, all this digging around is leaving me with some questions > that > > may or may not be useful to getting this thing to stop segfaulting & > start > > doing something useful. > > > > Can anybody out there offer some clarification about the following? > > > > - What are glue_fns and why are they necessary? How/why do they differ > > from shim_fns (used to invoke foreign functions)? > > > > - What's the purpose of *visit_glue* in the type_desc struct? The > others > > seem largely obvious (take/drop doing some sort of refcounting, free > to > > clean up, but visit ... ?) > > > > - Where are type_descs/tydescs written? The stack? The heap(s)? (i.e. > > anything that can be a GC root?) Where in the source code does this > happen? > > > > - What exactly is a "safe point" wrt the garbage collector? > > > > Appreciate any insight! > > > > Thanks, > > Tom > > > > > > -- > > *Tom Lee */ http://tomlee.co / @tglee <http://twitter.com/tglee> > > > _______________________________________________ > > Rust-dev mailing list > > Rust-dev@mozilla.org > > https://mail.mozilla.org/listinfo/rust-dev > > -- *Tom Lee */ http://tomlee.co / @tglee <http://twitter.com/tglee>
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