Re: [RFA] Windows x64 SEH unwinder (v2)

[Pedro Alves <palves@redhat.com>]

On 08/19/2013 02:59 PM, Tristan Gingold wrote:
> 
> On Jul 26, 2013, at 5:22 PM, Pedro Alves <palves@redhat.com> wrote:
>> What's the plan for debugging binaries with dwarf instead of SEH?
>> That'd be binaries built with gcc 4.6, IIUC.
>> There was the fallback idea of providing a knob to disable the
>> unwinder.  Is that no longer necessary?  Did you guys manage to
>> confirm what happens with those binaries?  Or will we take the wait
>> until someone complains the missing support approach?  If the latter,
>> than I think NEWS should mention we no longer support such binaries.
>> Now that I mention that, I notice the NEWS hunk is mentioned in the
>> ChangeLog, but it's actually missing from the patch.  :-)
> 
> I'd simply vote for not supporting binaries built with old versions of gcc.
> If a user complain, we can either add a command to disable the SEH unwinder,
> or (and I prefer that option) simply say: sorry, but your binary is not
> compliant with the x64 ABI.

That's fine with me, but I do think that if going that direction,
then it'd be nicer to users to mention it in NEWS now, so they
may know upfront they'll need to upgrade their compiler (and stick
with older gdbs for older binaries).

Thanks,
-- 
Pedro Alves