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/* Copyright (C) 1997, 1998, 2000 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/>. */
/* Don't rely on this, the interface is currently messed up and may need to
be broken to be fixed. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
#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 general register. */
typedef unsigned long int greg_t;
/* Number of general registers. */
#define NGREG 32 /* 16 global and 16 local */
/* Container for all general registers. */
/* gregset_t must be an array. The below declared array corresponds to:
typedef struct gregset {
greg_t g_regs[32];
greg_t g_hi;
greg_t g_lo;
greg_t g_pad[3];
} gregset_t; */
typedef greg_t gregset_t[NGREG];
/* Container for all FPU registers. */
typedef struct fpregset {
/* No floating point registers on most i960 */
/* Otherwise, signal the missing implementation */
#if defined(__i960SB) || defined(__i960KB)
#error Floating point support is not yet implemented for the i960 platform.
#endif
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
gregset_t gregs;
fpregset_t fpregs;
} 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 /* sys/ucontext.h */
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