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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, see
<http://www.gnu.org/licenses/>. */
/* 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
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