ELF symbol: GLOBAL+HIDDEN

Based on eg. this Oracle description : > STB_GLOBAL > Global symbols. **These symbols are visible to all object files** being combined. One file's definition of a global symbol will satisfy another file's undefined reference to the same global symbol. > ... > STV_HIDDEN > A symbol defined in the current component is hidden if its name **is not visible to other components**. Such a symbol is necessarily protected. This attribute is used to control the external interface of a component. An object named by such a symbol may still be referenced from another component if its address is passed outside. > **A hidden symbol contained in a relocatable object is either removed or converted to STB_LOCAL binding** by the link-editor when the relocatable object is included in an executable file or shared object. However, looking at readelf -s of some simple test program (compiled with GCC on x86-64 Linux), there are some global hidden symbols: FUNC GLOBAL HIDDEN 16 _fini OBJECT GLOBAL HIDDEN 25 __dso_handle OBJECT GLOBAL HIDDEN 25 __TMC_END__ According to the description above this should be both nonsensical and not allowed at all. What are the properties (visibility, interpositioning ability, ...) of this combination?