sys_id_t s_id; /* index of this system structure */
short s_flags; /* PREEMTIBLE, BILLABLE, etc. */
+ /* Asynchronous sends */
+ vir_bytes s_asyntab; /* addr. of table in process' address space */
+ size_t s_asynsize; /* number of elements in table. 0 when not in
+ * use
+ */
+
short s_trap_mask; /* allowed system call traps */
sys_map_t s_ipc_from; /* allowed callers to receive from */
sys_map_t s_ipc_to; /* allowed destination processes */
+ sys_map_t s_ipc_sendrec; /* allowed sendrec processes */
/* allowed kernel calls */
#define CALL_MASK_SIZE BITMAP_CHUNKS(NR_SYS_CALLS)