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/* Copyright (C) 1997, 1999, 2001 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

/* H8/300 compliant context switching support.  */

#ifndef _SYS_UCONTEXT_H

#define _SYS_UCONTEXT_H 1

#include <features.h>

#include <signal.h>

typedef int greg_t;

/* Number of general registers.  */

#define NFPREG  8

/* Container for all general registers.  */

typedef greg_t gregset_t[NFPREG];

#ifdef __USE_GNU

/* Number of each register is the `gregset_t' array.  */

enum

{

  ER0 = 0,

#define ER0     ER0

  ER1 = 1,

#define ER1     ER1

  ER2 = 2,

#define ER2     ER2

  ER3 = 3,

#define ER3     ER3

  ER4 = 4,

#define ER4     ER4

  ER5 = 5,

#define ER5     ER5

  ER6 = 6,

#define ER6     ER6

  ER7 = 7,

#define ER7     ER7

};

#endif

/* Context to describe whole processor state.  */

typedef struct

  {

    gregset_t gregs;

  } mcontext_t;

/* Userlevel context.  */

typedef struct ucontext

  {

    unsigned long int uc_flags;

    struct ucontext *uc_link;

    stack_t uc_stack;

    mcontext_t uc_mcontext;

    __sigset_t uc_sigmask;

  } ucontext_t;

#endif