Re: Symbols in .so even when using fvisibility=hidden

[Robert Wohlrab <robert dot wohlrab at gmx dot de>]

Ian Lance Taylor wrote:
[..]
> Thanks for the test case.  I see what is happening.  Your class and
> its functions are hidden.  What is not hidden is the standard library
> template functions which your code instantiates.
> 
> Template instantations are a tricky case for visibility.  It's
> possible to pass template objects from one shared library to another,
> so the instantiations all have to be compatible.  And they aren't
> symbols that you are defining yourself, so it's not clear whether
> -fvisibility=hidden should apply to them.  So I don't know what the
> right behaviour is here.
> 
> To really get what you want--to hide all the symbols, even the
> implicit template instantiations--you will need to pass a version
> script to the linker.  You may also want to consider
> -fno-implicit-templates and -fno-implicit-inline-templates, although
> then you will have to ensure that some other object instantiates the
> required templates.

Thanks. I just saw that someone else already done that with ld's -version-
script
-- 
Robert Wohlrab