[Bug c++/35368] [4.1/4.2/4.3/4.4 Regression] With #pragma visibility, `vtable for __cxxabiv1::__class_type_info' is emitted as a hidden-visibility relocation

["jakub at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #9 from jakub at gcc dot gnu dot org  2008-02-26 17:39 -------
BTW, not sure why 4.1.x/4.2.x is listed as broken.  Only 4.3+ has H.J's:
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119764
Without that change, although __cxxabiv1::* symbols are incorrectly marked
as hidden, GCC doesn't emit .hidden directives for the external symbols and all
these symbols of course are external, as they are defined in
libsupc++.a/libstdc++.{so,a}, and as they are referenced just in the RTTI
pointers, not in code directly, it makes zero difference to the generated code
whether they are hidden or not.

BTW, I've noticed that for _ZTI*/_ZTV* symbols defined in the assembly .hidden
directives are emitted twice, once at the definition spot and once at the end
of the file.  Guess assemble_external_real should skip decls that lost
DECL_EXTERNAL flag (became defined in the current TU).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35368