Getting exception backtraces without exiting ocaml

Getting exception backtraces without exiting ocaml

[Denis Bueno]

All-

Is there a way to get an exception backtrace *without* having to exit
the ocaml runtime?

Some background:

I use the OUnit unit testing framework
(http://www.xs4all.nl/~mmzeeman/ocaml/) to unit test my compiler. I
like the fact that I can see *all* the test failures every time I run
the tests. That is, if one file fails to compile for some reason, I
can still see failures of other tests for independent parts of the
compiler.

This feature is only possible because OUnit catches exceptions that I
don't catch, runs Printexc.to_string on them, and continues with the
rest of the tests. However, this interferes with ocamlrun's printing
of the exception backtrace, which I really want in case of an
unexpected exception.

Can I get what I want?

-Denis

Re: [Caml-list] Getting exception backtraces without exiting ocaml

[David Baelde]

Hi,

When a thread throws an exception it simply exits without killing the
whole process,
and a stacktrace is issued.

Dunno if that could help...
-- 
David

Re: [Caml-list] Getting exception backtraces without exiting ocaml

[Florian Weimer]

* Denis Bueno:

> Is there a way to get an exception backtrace *without* having to exit
> the ocaml runtime?

It seems that the backtrace is unconditionally written to standard
error, so it will be difficult to obtain it even if you can keep the
process around.