Re: Question on Dwarf2 unwind info and optimized code

[Christophe LYON <christophe dot lyon at st dot com>]

Daniel Jacobowitz wrote:

> > I am currently working on the debug_frame info emission in our C/C++ 
> > compiler (based on Open64) and I have recently come across optimized 
> > code which I don't know how to handle.
>
> Reposting this question to increasingly unrelated lists is not likely
> to help you find an answer :-)

Well, anyway thanks for your response, it is sufficient for me.
FYI, I first asked on the dwarf-dedicated mailing-list and surprisingly 
got no reply at all!

> > It's also unclear to me if I can/should use the 
> > remember_state/restore_state dwarf operators.
> > Indeed, what is the rule?
> There's no rule, just documentation of how they work - if you can run
> through the CFI stack machine and get the right results, you could use
> them.
OK, thanks for clarifying the situation.

Christophe