11.10.2 Manipulating the TLS context

The following interfaces are available for manipulating a TLS context for a thread of execution.

• size_t _tls_size(void) - return the required size for all __thread variables
• size_t _tls_align(void) - return the alignment requirements
• void _init_tls(void *) - initialize a new allocated TLS context
• void _set_tls(void *) - activate a previously allocated and initialized TLS context