- atomic_add(9), atomic_clear(9), atomic_cmpset(9), atomic_fetchadd(9), atomic_load(9), atomic_readandclear(9), atomic_set(9), atomic_subtract(9), atomic_store(9)
- atomic operations
- dumpon(8)
- specify a device for crash dumps
- led(4)
- API for manipulating LED's, lamps and other annunciators
- nfsdumpstate(8)
- display NFSv4 open/lock state
- sigsetjmp(3), siglongjmp(3), setjmp(3), longjmp(3), _setjmp(3), _longjmp(3), longjmperror(3)
- non-local jumps