[RFC PATCH 0/3] implement dlmopen hooks for gdb

[Florian Weimer]

* Carlos O'Donell:

>> No, unlike GLIBC_PRIVATE, you can assume that if a GLIBC_DEBUG symbol is
>> there (and perhaps has the documented size), it has the documented
>> semantics.  But you can't assume that it is present.
>> 
>> The semantics of GLIBC_PRIVATE symbols can change arbitrarily, even
>> between builds.
>
> Yes, absolutely, I agree completely, for it to be useful the semantics
> have to be:
>
> - If you detect a given symbol foo@GLIBC_DEBUG, then the feature is
>   present and has the semantics you expect.
>
> - If you want new semantics then you need to make a foo2@GLIBC_DEBUG
>   with the new semantics.
>
> What are the runtime semantics of the symbol? How do you access it?

That obviously depends on the symbol?  Sorry, I don't quite understand
these questions.

Thanks,
Florian
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