Exception handling HowTO??

[Jan Hoogerbrugge]

Hi,

I can use some advice to implement exception handing for my target port. 
There are no ABI constraints that have to be followed so that might help a 
lot. I already found
current_function_calls_eh_return which tells me that I need to save and 
restore some extra
registers in the prologue and epilogue. What's more? Do I need to do 
something in machine.md? What is the minimal set of macros that I have to 
define in machine.h?

Jan

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