Linker exposing private symbols

[Michael Matz]

Hi,

On Mon, 27 Aug 2018, Jeffrey Walton wrote:

> > That one is confusing compiling and linking.
> 
> Yeah, we need to see the compile and link command. To hazard a guess, he 
> is adding -fvisibility=hidden but after the compiler drives link he is 
> getting unwanted symbols in the shared object. The toolchain is not 
> doing what the user expect.

Because the expectations are wrong.  -fvisibility=hidden is a compile time 
option, no link time option.  It has no effect whatsoever while linking.

> The common theme is the user explicitly requests all symbols to be
> private with -fvisibility=hidden

The user might wish that that option is requesting this, but that doesn't 
make it true.  I'm not sure what you're trying to get at.


Ciao,
Michael.