sysdeps/generic/sys/ucontext.h

   1 /* Data structures for user-level context switching.  Generic version.
   2    Copyright (C) 1997,98,99,2001 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 /* This file's definitions suffice for any platform where all
  21    the machine-specific state is described in `struct sigcontext'.  */
  22
  23 #ifndef _SYS_UCONTEXT_H
  24 #define _SYS_UCONTEXT_H 1
  25
  26 #include <features.h>
  27 #include <signal.h>
  28
  29 /* We need the signal context definitions even if they are not used
  30    included in <signal.h>.  */
  31 #include <bits/sigcontext.h>
  32
  33 typedef struct sigcontext mcontext_t;
  34
  35 /* Userlevel context.  */
  36 typedef struct ucontext
  37   {
  38     unsigned long int uc_flags;
  39     struct ucontext *uc_link;
  40     stack_t uc_stack;
  41     mcontext_t uc_mcontext;
  42     __sigset_t uc_sigmask;
  43   } ucontext_t;
  44
  45 #endif /* sys/ucontext.h */