sys/arch/vax/include/mcontext.h

   1 /*      $NetBSD: mcontext.h,v 1.4 2005/12/11 12:19:34 christos Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Klaus Klein.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _VAX_MCONTEXT_H_
  33 #define _VAX_MCONTEXT_H_
  34
  35 /*
  36  * Layout of mcontext_t.
  37  * As on Alpha, this maps directly to `struct reg'.
  38  */
  39
  40 #define _NGREG  17              /* R0-31, AP, SP, FP, PC, PSL */
  41
  42 typedef int             __greg_t;
  43 typedef __greg_t        __gregset_t[_NGREG];
  44
  45 #define _REG_R0         0
  46 #define _REG_R1         1
  47 #define _REG_R2         2
  48 #define _REG_R3         3
  49 #define _REG_R4         4
  50 #define _REG_R5         5
  51 #define _REG_R6         6
  52 #define _REG_R7         7
  53 #define _REG_R8         8
  54 #define _REG_R9         9
  55 #define _REG_R10        10
  56 #define _REG_R11        11
  57 #define _REG_AP         12
  58 #define _REG_FP         13
  59 #define _REG_SP         14
  60 #define _REG_PC         15
  61 #define _REG_PSL        16
  62
  63 typedef struct {
  64         __gregset_t     __gregs;        /* General Purpose Register set */
  65 } mcontext_t;
  66
  67 #define _UC_MACHINE_SP(uc)      ((uc)->uc_mcontext.__gregs[_REG_SP])
  68 #define _UC_MACHINE_PC(uc)      ((uc)->uc_mcontext.__gregs[_REG_PC])
  69 #define _UC_MACHINE_INTRV(uc)   ((uc)->uc_mcontext.__gregs[_REG_R0])
  70
  71 #define _UC_MACHINE_SET_PC(uc, pc)      _UC_MACHINE_PC(uc) = (pc)
  72
  73 #endif  /* !_VAX_MCONTEXT_H_ */