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Re: Using __libdw_formptr from C++
- From: Petr Machata <pmachata at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Fri, 25 Feb 2011 12:55:15 +0100
- Subject: Re: Using __libdw_formptr from C++
Roland McGrath <roland@redhat.com> writes:
> It has indeed always been the plan that some C++ bits will be in the main
> libdw DSO. At least the reading-only bits will be, and perhaps more.
Interesting. I alway thought that elfutils are so much on the frugal
side that this would be frowned upon.
> We've just managed not to really need it yet and so have been able to put
> off figuring out how to handle the C++ symbols for symbol versioning. I
> want to keep putting that off since the C++ ABIs are still far from being
> firm.
>
> Instead, I've added a temporary hack version set to export __libdw_formptr.
> You should now be able to use it directly in the c++/values.cc code. (I
> wouldn't add a private wrapper method like you did, it doesn't seem to buy
> much. If you need anything more than using it directly, you can use a
> static function in value.cc instead, I think.)
Thanks. Yes, the wrapper was not really serving any purpose. I've now
commited purely the fix (without the libdwP.h and .map shenanigans) to
the dwarf branch.
PM