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Re: frame->unwind->this_base()

That would be a very bad assumption. They are pratically guarenteed to
be different. 


Then what do you mean by a "dwarf2 frame"?  I'd assume you meant the
CFA, but it sounds like you mean a frame for which we have dwarf2
.debug_info.

A frame with debug info provided by dwarf2. CFI gives the register info, location expressions give the variable info, ...

What started out as a simple cfi-frame looks like it might need to evolve into dwarf2-frame ...

Andrew


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