Re: xscale-elf-gcj status: looking good

[Andrew Haley <aph at cambridge dot redhat dot com>]

Bryce McKinlay writes:
 > Anthony Green wrote:
 > 
 > >BTW - I thought arm targets didn't use sjlj eh anymore, but it looks
 > >like that's what is being configured.
 > >
 > 
 > I believe that for Java, you must use sjlj eh unless there is either 
 > some platform-specific code to turn signals into NullPointerExceptions, 
 > or you have -fcheck-references enabled.
 > 
 > For dwarf2 exceptions the hard part seems to be unwinding the signal 
 > handling frame. For a raw embedded target I guess that problem might not 
 > exist since you may be able to avoid setting up the signal frame in the 
 > first place?

You have to pass the information about where the signal happened to
the handler in some way, so there must be a frame somewhere that
describes the machine state at the point of the signal.

Andrew.