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/* Copyright (C) 2000 Free Software Foundation, Inc.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
/* Forward definition to avoid parse errors */
struct ucontext;
typedef struct ucontext ucontext_t;
#include <features.h>
#include <signal.h>
/* We need the signal context definitions even if they are not used
included in <signal.h>. */
#include <bits/sigcontext.h>
/* Type for a general-purpose register. */
typedef unsigned long greg_t;
/* And the whole bunch of them. We should have used `struct s390_regs',
but to avoid name space pollution and since the tradition says that
the register set is an array, we make gregset_t a simple array
that has the same size as s390_regs. */
#define NGREG 36
#define NUM_FPRS 16
typedef greg_t gregset_t[NGREG];
typedef union
{
double d;
float f;
} fpreg_t;
/* Register set for the floating-point registers. */
typedef struct {
unsigned int fpc;
fpreg_t fprs[NUM_FPRS];
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
int version;
gregset_t gregs;
fpregset_t fpregs;
} mcontext_t;
/* Userlevel context. */
struct ucontext
{
unsigned long int uc_flags;
struct ucontext *uc_links;
__sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
long int uc_filler[170];
};
#endif /* sys/ucontext.h */
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