https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87190
--- Comment #3 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
Remember that -fvisibility is not a perfect substitute to proper annotations
via the visibility pragma and attributes. If you do
extern void foo(void);
void bar()
{
foo();
}
then with -fvisibility=hidden, the call to foo goes via the PLT, with the
corresponding speed and code size penalties on 32-bit x86 and other archs where
PLT calls need some setup on caller side.
