Best way to get the state of a terminating process

[Mickael Remond]

Hello,  
  
I would like to know what is the best way to get the last call parameters of a  
terminating process.  
I  know that I can use process_flag(save_calls, N) and then retrieve the call 
stack, but this seems to be debugging functions. What is the standard way to 
do so ? 
  
--   
Mickaël Rémond