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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/mips/sys/ucontext.h
1 /* Copyright (C) 1997, 1998, 2000, 2003, 2004 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, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 /* Don't rely on this, the interface is currently messed up and may need to
20 be broken to be fixed. */
21 #ifndef _SYS_UCONTEXT_H
22 #define _SYS_UCONTEXT_H 1
28 /* We need the signal context definitions even if they are not used
29 included in <signal.h>. */
30 #include <bits/sigcontext.h>
32 /* Type for general register. Even in o32 we assume 64-bit registers,
34 __extension__
typedef unsigned long long int greg_t
;
36 /* Number of general registers. */
40 /* Container for all general registers. */
41 typedef greg_t gregset_t
[NGREG
];
43 /* Container for all FPU registers. */
44 typedef struct fpregset
{
46 double fp_dregs
[NFPREG
];
55 /* Context to describe whole processor state. */
56 #if _MIPS_SIM == _ABIO32
57 /* Earlier versions of glibc for mips had an entirely different
58 definition of mcontext_t, that didn't even resemble the
59 corresponding kernel data structure. Since all legitimate uses of
60 ucontext_t in glibc mustn't have accessed anything beyond
61 uc_mcontext and, even then, taking a pointer to it, casting it to
62 sigcontext_t, and accessing it as such, which is what it has always
63 been, this can still be rectified. Fortunately, makecontext,
64 [gs]etcontext et all have never been implemented. */
72 unsigned int fp_owned
;
75 unsigned int used_math
;
80 unsigned int badvaddr
;
93 unsigned int used_math
;
95 unsigned int badvaddr
;
99 /* Userlevel context. */
100 typedef struct ucontext
102 unsigned long int uc_flags
;
103 struct ucontext
*uc_link
;
105 mcontext_t uc_mcontext
;
106 __sigset_t uc_sigmask
;
109 #endif /* sys/ucontext.h */