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glibc  2.9
ucontext.h
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00001 /* Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 /* Don't rely on this, the interface is currently messed up and may need to
00020    be broken to be fixed.  */
00021 #ifndef _SYS_UCONTEXT_H
00022 #define _SYS_UCONTEXT_H     1
00023 
00024 #include <features.h>
00025 #include <signal.h>
00026 
00027 /* We need the signal context definitions even if they are not used
00028    included in <signal.h>.  */
00029 #include <bits/sigcontext.h>
00030 
00031 
00032 /* Type for general register.  */
00033 typedef unsigned long int greg_t;
00034 
00035 /* Number of general registers.  */
00036 #define NGREG 80
00037 #define NFPREG       32
00038 
00039 /* Container for all general registers.  */
00040 typedef struct gregset
00041   {
00042     greg_t g_regs[32];
00043     greg_t sr_regs[8];
00044     greg_t cr_regs[24];
00045     greg_t g_pad[16];
00046   } gregset_t;
00047 
00048 /* Container for all FPU registers.  */
00049 typedef struct fpregset
00050   {
00051     double fp_dregs[32];
00052   } fpregset_t;
00053 
00054 /* Context to describe whole processor state.  */
00055 typedef struct sigcontext mcontext_t;
00056 
00057 /* Userlevel context.  */
00058 typedef struct ucontext
00059   {
00060     unsigned long int uc_flags;
00061     struct ucontext *uc_link;
00062     stack_t uc_stack;
00063     mcontext_t uc_mcontext;
00064     __sigset_t uc_sigmask;
00065   } ucontext_t;
00066 
00067 #endif /* sys/ucontext.h */