backend debug information

Hello All,

I am working on writing up my "C" extensions but am having a problem with the
backend having a problem and no real useful information is being returned.

I am getting this:
-----------------------------------------------------------------------------

Welcome to psql, the PostgreSQL interactive terminal.
Type:  \copyright for distribution terms      \h for help with SQL commands      \? for help on internal slash commands
    \g or terminate with semicolon to execute query      \q to quit
 
trdata=# select desdecrypt('a','b');
pqReadData() -- backend closed the channel unexpectedly.       This probably means the backend terminated abnormally
  before or while processing the request.
 
The connection to the server was lost. Attempting reset: Failed.
!# \q  
------------------------------------------------------------------------------

This function is part of a library set that I am using and I know that it works
in regular C++ and have already implemented the encryption side with no
problems.

Is there some place that I can get the debug information when this system
crashes out so that I can look for the problem?

Cheers,
Lonnie 

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