If you touch runtime services (such as those mentioned by Benjamin), it is assume that a Rust Task [1] is available. In your case, you're touching the unwinding service, but you have no set a catch-point for the call to unwinding anywhere. This sounds like you're triggering a failure without a task. This is akin to throwing a C++ exception without a try/catch block on the stack.
You may wish to explore the std::rt::unwind [2] module, specifically the try function [3], but keep in mind that it is unsafe and you must be careful about what you're doing (the documentation explains this). I love getting the runtime running in nonstandard locations, so if you have any trouble, feel free to ping me on IRC! My nick is acrichto. [1]: http://doc.rust-lang.org/std/rt/task/struct.Task.html [2]: http://doc.rust-lang.org/std/rt/unwind/ [3]: http://doc.rust-lang.org/std/rt/unwind/fn.try.html On Wed, Jul 2, 2014 at 6:07 PM, Isak Andersson <cont...@bitpuffin.com> wrote: > Hello! > > I have written a library in Rust that has some pub extern fv's in it so that > they are callable from C. I wrote a C program to try calling these functions > and I was met with the following message: > > % ./test > > You've met with a terrible fate, haven't you? > > fatal runtime error: Could not unwind stack, error = 5 > zsh: illegal hardware instruction ./test > > To begin with, nice reference! > > Second of all. How do I fix this, I am guessing that I need to start the > rust runtime or something but I don't know how to do this, if someone could > point me in the right direction that would be great! > > If you need more specific code examples of what I'm doing I can provide it > it's just that I'm gonna sleep now and it doesn't seem like that's all too > relevant. Also I did link to the libraries in the order it told me to. > > Cheers! > > Isak Andersson > > _______________________________________________ > Rust-dev mailing list > Rust-dev@mozilla.org > https://mail.mozilla.org/listinfo/rust-dev > _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
