Linux x86 unwinder: Handle __NR_sigreturn for __kernel_sigreturn support

Florian Weimer
Mon Dec 17 11:41:00 GMT 2018

* Florian Weimer:

> I believe this may address recent unwinder failures in Fedora if the
> vDSO unwinder does not contain unwinding data:
>   <>
> The question is: Do we want to move in that direction?  Or should we
> make clear that the userspace ABI *requires* unwinding information?

This will be fixed on the kernel side, so the patch probably won't be


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