Thread-local symbols

The two storage-mapping classes used for thread-local symbols are TL and UL.

The two storage-mapping classes that are used for thread-local symbols are TL and UL. The TL storage-mapping class is used with the .csect pseudo-op to define initialized thread-local storage. The UL storage-mapping class is used with the .comm or .lcomm pseudo-op to define thread-local storage that is not initialized. Expressions combining thread-local symbols and non-thread-local symbols are not allowed.