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what marks the end of stack?

From: "Oliver Kowalke" <oliver dot kowalke at gmx dot de>
To: gcc-help at gcc dot gnu dot org
Date: Thu, 29 Mar 2012 12:56:47 +0200
Subject: what marks the end of stack?

What marks the end of stack or how does uw_frame_state_for() detect the end of stack?
I've a coroutine library and I'm using _Unwind_ForcedUnwind() for stack cleanup. Function _Unwind_ForcedUnwind_Phase2() never sets _URC_END_OF_STACK!

any ideas?

Oliver
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