1 /* Copyright (C) 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #ifndef _SYS_UCONTEXT_H
20 #define _SYS_UCONTEXT_H 1
25 /* We need the signal context definitions even if they are not used
26 included in <signal.h>. */
27 #include <bits/sigcontext.h>
30 /* Type for general register. */
33 /* Number of general registers. */
36 /* Container for all general registers. */
37 typedef greg_t gregset_t[NGREG];
39 /* Number of each register is the `gregset_t' array. */
82 /* Structure to describe FPU registers. */
83 typedef struct _fpstate *fpregset_t;
85 /* Context to describe whole processor state. */
89 /* Due to Linux's history we have to use a pointer here. The SysV/i386
90 ABI requires a struct with the values. */
92 unsigned long int oldmask;
93 unsigned long int cr2;
96 /* Userlevel context. */
97 typedef struct ucontext
99 unsigned long int uc_flags;
100 struct ucontext *uc_links;
102 mcontext_t uc_mcontext;
103 __sigset_t uc_sigmask;
106 #endif /* sys/ucontext.h */