text: /* Copyright (C) 1998-2016 Free Software Foundation, Inc.
  
     This file is part of the GNU C Library.
  
     The GNU C Library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
  
     The GNU C Library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with the GNU C Library; if not, see
     <http://www.gnu.org/licenses/>.  */
  
  /* System V/AArch64 ABI compliant context switching support.  */
  
  #ifndef _SYS_UCONTEXT_H
  #define _SYS_UCONTEXT_H	1
  
  #include <features.h>
  #include <signal.h>
  
  #include <sys/procfs.h>
  
  typedef elf_greg_t greg_t;
  
  /* Container for all general registers.  */
  typedef elf_gregset_t gregset_t;
  
  /* Structure to describe FPU registers.  */
  typedef elf_fpregset_t	fpregset_t;
  
  /* Context to describe whole processor state.  This only describes
     the core registers; coprocessor registers get saved elsewhere
     (e.g. in uc_regspace, or somewhere unspecified on the stack
     during non-RT signal handlers).  */
  typedef struct sigcontext mcontext_t;
  
  /* Userlevel context.  */
  typedef struct ucontext
    {
      unsigned long uc_flags;
      struct ucontext *uc_link;
      stack_t uc_stack;
      __sigset_t uc_sigmask;
      mcontext_t uc_mcontext;
    } ucontext_t;
  
  #endif /* sys/ucontext.h */
  