sysdeps/generic/sys/ucontext.h

   1 /* Data structures for user-level context switching.  Generic version.
   2    Copyright (C) 1997-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 /* This file's definitions suffice for any platform where all
  20    the machine-specific state is described in `struct sigcontext'.  */
  21
  22 #ifndef _SYS_UCONTEXT_H
  23 #define _SYS_UCONTEXT_H 1
  24
  25 #include <features.h>
  26 #include <signal.h>
  27
  28 /* We need the signal context definitions even if they are not used
  29    included in <signal.h>.  */
  30 #include <bits/sigcontext.h>
  31
  32 typedef struct sigcontext mcontext_t;
  33
  34 /* Userlevel context.  */
  35 typedef struct ucontext
  36   {
  37     unsigned long int uc_flags;
  38     struct ucontext *uc_link;
  39     stack_t uc_stack;
  40     mcontext_t uc_mcontext;
  41     __sigset_t uc_sigmask;
  42   } ucontext_t;
  43
  44 #endif /* sys/ucontext.h */