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Jon TURNEY e9e47b8ce6 Teach stackinfo::walk() how to virtually unwind the tls sigstack
This improves how stackinfo::dumpstack() dumps _sigbe and sigdelayed frames

	* exceptions.cc (stack_info): Add sigstackptr member.
	(walk): Unwind sigstackptr inside _sigbe and sigdelayed.
	* gendef (_sigdelayed_end): Add symbol to mark end of sigdelayed.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-03-13 13:05:52 +00:00
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