1 /* Copyright (C) 1997-2014 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 Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the 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 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <http://www.gnu.org/licenses/>. */
18 /* System V/m68k ABI compliant context switching support. */
20 #ifndef _SYS_UCONTEXT_H
21 #define _SYS_UCONTEXT_H 1
26 /* Type for general register. */
29 /* Number of general registers. */
32 /* Container for all general registers. */
33 typedef greg_t gregset_t[NGREG];
35 /* Number of each register is the `gregset_t' array. */
78 /* Structure to describe FPU registers. */
79 typedef struct fpregset
91 /* Context to describe whole processor state. */
99 #define MCONTEXT_VERSION 2
101 /* Userlevel context. */
102 typedef struct ucontext
104 unsigned long uc_flags;
105 struct ucontext *uc_link;
107 mcontext_t uc_mcontext;
108 unsigned long uc_filler[80];
109 __sigset_t uc_sigmask;
112 #endif /* sys/ucontext.h */