[rfa/c++] cp_lookup_rtti_type, take 2
Fri Dec 5 17:12:00 GMT 2003
On Thu, 4 Dec 2003 23:22:37 -0500 (EST), firstname.lastname@example.org
(Michael Elizabeth Chastain) said:
>> The only reason we can do it by symbol lookup at all is the One
>> Definition Rule, and we should probably be restricting ourselves to the
>> objfile in which we found the minimal symbol.
> Yes, it's still very flaky. The only reason it works now is that
> there is a low-priority "fallback" search over all static blocks.
> That is just more trouble waiting to happen.
Yeah, but my current patch awaiting approval fixes that. Those
symbols shouldn't be static in the first place.
> We've got a vtbl pointer, and we want type information for it.
> So we translate:
> vtbl address -> minsym
> minsym -> mangled name
> mangled name -> demangled name
> demangled name -> prefix
> prefix -> symbol
> symbol -> type
> Maybe we should just go from the vtbl address to the symbol without
> converting to a name and back again?!
It would be nice if we could eventually short-circuit much or all of
this. As Daniel likes to point out, we should try to reduce our
demangler dependencies wherever possible, and this is a particularly
> In retrospect, my new lookup_rtti_type should take the domain as a
I think that would be more confusing.
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