* target-def.h (TARGET_CXX): Add TARGET_CXX_EXPORT_CLASS_DATA.
* target.h (cxx): Add export_class_data.
* config/arm/arm.c (arm_cxx_export_class_data): New function.
(TARGET_CXX_EXPORT_CLASS_DATA): Use it.
* testsuite/g++.dg/ext/visibility/arm1.C: New test.
* cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): New macro.
* class.c (build_ctor_vtbl_group): Set DECL_CONSTRUCTION_VTABLE_P.
* decl2.c (determine_visibility): Honor
TARGET_CXX_EXPORT_CLASS_DATA.
* g++.dg/ext/visibility/arm1.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@86867 138bc75d-0d04-0410-961f-82ee72b054a4