_Unwind_Control_Block
void _Unwind_Resume(_Unwind_Control_Block *);
void _Unwind_Complete(_Unwind_Control_Block *);
void _Unwind_DeleteException(_Unwind_Control_Block *);
_Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Control_Block *);
_Unwind_Control_Block *, _Unwind_Context *);
_Unwind_Control_Block *, _Unwind_Context *);
_Unwind_Control_Block *, _Unwind_Context *);
typedef struct _Unwind_Control_Block _Unwind_Control_Block;
void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);
__aeabi_unwind_cpp_stub(_Unwind_State state, _Unwind_Control_Block *ucbp,