1 /* Copyright (C) 1997, 1998, 2000, 2003, 2004, 2006, 2009 Free Software
2 Foundation, Inc. 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 /* Don't rely on this, the interface is currently messed up and may need to
19 be broken to be fixed. */
20 #ifndef _SYS_UCONTEXT_H
21 #define _SYS_UCONTEXT_H 1
27 /* We need the signal context definitions even if they are not used
28 included in <signal.h>. */
29 #include <bits/sigcontext.h>
31 /* Type for general register. Even in o32 we assume 64-bit registers,
33 __extension__
typedef unsigned long long int greg_t
;
35 /* Number of general registers. */
39 /* Container for all general registers. */
40 typedef greg_t gregset_t
[NGREG
];
42 /* Container for all FPU registers. */
43 typedef struct fpregset
{
45 double fp_dregs
[NFPREG
];
54 /* Context to describe whole processor state. */
55 #if _MIPS_SIM == _ABIO32
56 /* Earlier versions of glibc for mips had an entirely different
57 definition of mcontext_t, that didn't even resemble the
58 corresponding kernel data structure. Fortunately, makecontext,
59 [gs]etcontext et all were not implemented back then, so this can
60 still be rectified. */
68 unsigned int fp_owned
;
71 unsigned int used_math
;
97 unsigned int used_math
;
99 unsigned int reserved
;
103 /* Userlevel context. */
104 typedef struct ucontext
106 unsigned long int uc_flags
;
107 struct ucontext
*uc_link
;
109 mcontext_t uc_mcontext
;
110 __sigset_t uc_sigmask
;
113 #endif /* sys/ucontext.h */