os::signal_lookup is declared, and has various OS-specific implementations, but there are no callers of this function.
            
- relates to
- 
                    JDK-8129814 improper use of OSX semaphore_t from signal handlers -           
- Closed
 
-         
- 
                    JDK-8130038 Unify the semaphore usage in os_xxx.cpp -           
- Resolved
 
-