Re: [Jython-dev] Using Debugger for mixed Jython/Java/C-Project in Eclipse

[Fabio Z. <fa...@es...>]

On Tue, Feb 11, 2014 at 10:45 AM, Stefan Richthofer <
Ste...@gm...> wrote:

> Hello everybody,
>
> I am currently trying to set up GDB in Eclipse to debug JyNI. Problem here
> is that
> my usual test-run starts in Python-code (as a Jython-run), then enters
> Java code
> and finally enters a C-shared lib via JNI and also goes through two more
> C-shared libs
> via dynamic loading. I would like to track breakpoints in the last two
> shared C-libs.
>
> It turned out that each of these steps requires notable tweaking with
> configuration.
>
> For example there are guides how to debug CPython+native C-code with GDB,
> how to debug
> Java code with native JNI-lib, how to debug C-code that steps into other
> libraries by
> dynamic loading (this one is said to require GDB-config that is not
> possible via
> Eclipse GUI). However, none of these covers my issue completely.
>
> Now my question is, whether there is someone around on this list who has
> already done
> something like this. Developing JNI-bindings intended for Jython should be
> not such a
> rare use-case. Does someone have experience in debugging such things in
> Eclipse?
>
> I would appreciate any help or guidance on this topic.
>
>
> Currently my best guess would be the following way:
> I could try to start my test-run as a pure Java-Application
> that passes the Python-file somehow to the Jython interpreter
> (thus not using PyDev at all).
> Then I could try to apply the howto for JNI/native code GDB and
> hope that it somehow covers the way through dynamically loaded
> libs.
> Is there a better, i.e. more "right" way to do this?
>
>
Hi Stefan,

Usually in this situation what I do is start one of the debuggers regularly
and attach the other one(s) through remote debugging (In PyDev there are
instructions at http://pydev.org/manual_adv_remote_debugger.html -- there
should be counterparts for the other languages).

Cheers,

Fabio