Re: -fvisibility-inlines-hidden not hiding inline methods?

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Hi,

-fvisibility-inlines-hidden only affects inline methods.  It does not
affect inline functions which are not methods.  E.g., your test cases
uses std::sort, but std::sort is not an inline method of any class. In
general -fvisibility-inlines-hidden does not apply to template
instantiations, since that would break explicit instantiations.

Thanks. We do see this happening for members as well such as std::vector<T>::_M_insert_aux. Do I understand you correctly the option only applies to non-template inline member functions? That would be unfortunate as we have by far more template-generated inline goo than other origins :-/

Is there any way to override the above restriction to apply to all inlines - or at least templates and out-of-class free functions included - and/or would a patch to enable such behaviour be accepted? Should one expect any major drawbacks for such a change on pretty bog standard C++ use, such as standard library or boost?

Is different visibility for template specialisations common for those that use the option? I couldn't think of any construct in our code that would call for it, and was wondering if there were examples of how it's used elsewhere so that I don't misunderstand this feature.

Lassi



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