usr/src/lib/libfakekernel/common/sys/klwp.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 /*
  26  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
  27  */
  28
  29 #ifndef _SYS_KLWP_H
  30 #define _SYS_KLWP_H
  31
  32 #include <sys/types.h>
  33 #include <sys/condvar.h>
  34 #include <sys/thread.h>
  35 #include <sys/signal.h>
  36
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /*
  42  * The light-weight process object and the methods by which it
  43  * is accessed.
  44  */
  45
  46 #define MAXSYSARGS      8       /* Maximum # of arguments passed to a syscall */
  47
  48 /* lwp_eosys values */
  49 #define NORMALRETURN    0       /* normal return; adjusts PC, registers */
  50 #define JUSTRETURN      1       /* just return, leave registers alone */
  51
  52 typedef struct _klwp    *klwp_id_t;
  53
  54 typedef struct _klwp {
  55         /*
  56          * linkage
  57          */
  58         struct _kthread *lwp_thread;
  59         struct proc     *lwp_procp;
  60
  61 } klwp_t;
  62
  63 /* lwp states */
  64 #define LWP_USER        0x01            /* Running in user mode */
  65 #define LWP_SYS         0x02            /* Running in kernel mode */
  66
  67 #if     defined(_KERNEL)
  68 extern  volatile int    lwp_default_stksize;
  69 extern  klwp_t          lwp0;
  70
  71 /* where newly-created lwps normally start */
  72 extern  void    lwp_rtt(void);
  73
  74 #endif  /* _KERNEL */
  75
  76 #ifdef  __cplusplus
  77 }
  78 #endif
  79
  80 #endif  /* _SYS_KLWP_H */