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Re: Translate signal to C++ exception

On Sat, Apr 09, 2016 at 11:05:33AM -0400, Christos Zoulas wrote:
> On Apr 9,  4:11am, (Kamil Rytarowski) wrote:
> -- Subject: Re: Translate signal to C++ exception
> | How to do proper unwinding?
> | 
> | I was trying to disable custom signal stack with sigaltstack(2) but
> | always I got backtrace(3) without history beyond signal trampoline.
> | 
> | I don't know how to go beyond the trampoline.
> The only way is through proper cfi annotations, and even then it is
> doubtful it will work.

Are we talking about sync or async signals? For sync signals, it is no
big issue. Async signals are a whole lot different and sigaltstack is
difficult to avoid for them.


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