include/asm-nios2nommu/ucontext.h

   1 #ifndef _NIOSKNOMMU_UCONTEXT_H
   2 #define _NIOSKNOMMU_UCONTEXT_H
   3
   4 /*--------------------------------------------------------------------
   5  *
   6  * include/asm-nios2nommu/ucontext.h
   7  *
   8  * Derived from M68knommu
   9  *
  10  * Copyright (C) 2004   Microtronix Datacom Ltd
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  *
  23  * Jan/20/2004          dgt         NiosII
  24  *
  25  ---------------------------------------------------------------------*/
  26
  27
  28 typedef int greg_t;
  29 #define NGREG 32
  30 typedef greg_t gregset_t[NGREG];
  31
  32 #ifdef CONFIG_FPU
  33 typedef struct fpregset {
  34         int f_pcr;
  35         int f_psr;
  36         int f_fpiaddr;
  37         int f_fpregs[8][3];
  38 } fpregset_t;
  39 #endif
  40
  41 struct mcontext {
  42         int version;
  43         int status_extension;
  44         gregset_t gregs;
  45 #ifdef CONFIG_FPU
  46         fpregset_t fpregs;
  47 #endif
  48 };
  49
  50 #define MCONTEXT_VERSION 2
  51
  52 struct ucontext {
  53         unsigned long     uc_flags;
  54         struct ucontext  *uc_link;
  55         stack_t           uc_stack;
  56         struct mcontext   uc_mcontext;
  57 #ifdef CONFIG_FPU
  58         unsigned long     uc_filler[80];
  59 #endif
  60         sigset_t          uc_sigmask;   /* mask last for extensibility */
  61 };
  62
  63 #endif