sysdeps/unix/sysv/linux/sh/sys/ucontext.h

   1 /* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /* Where is System V/SH ABI?  */
  20
  21 #ifndef _SYS_UCONTEXT_H
  22 #define _SYS_UCONTEXT_H 1
  23
  24 #include <features.h>
  25 #include <signal.h>
  26
  27 /* We need the signal context definitions even if they are not used
  28    included in <signal.h>.  */
  29 #include <bits/sigcontext.h>
  30
  31
  32 typedef int greg_t;
  33
  34 /* Number of general registers.  */
  35 #define NFPREG  16
  36
  37 /* Container for all general registers.  */
  38 typedef greg_t gregset_t[NFPREG];
  39
  40 #ifdef __USE_GNU
  41 /* Number of each register is the `gregset_t' array.  */
  42 enum
  43 {
  44   R0 = 0,
  45 #define R0      R0
  46   R1 = 1,
  47 #define R1      R1
  48   R2 = 2,
  49 #define R2      R2
  50   R3 = 3,
  51 #define R3      R3
  52   R4 = 4,
  53 #define R4      R4
  54   R5 = 5,
  55 #define R5      R5
  56   R6 = 6,
  57 #define R6      R6
  58   R7 = 7,
  59 #define R7      R7
  60   R8 = 8,
  61 #define R8      R8
  62   R9 = 9,
  63 #define R9      R9
  64   R10 = 10,
  65 #define R10     R10
  66   R11 = 11,
  67 #define R11     R11
  68   R12 = 12,
  69 #define R12     R12
  70   R13 = 13,
  71 #define R13     R13
  72   R14 = 14,
  73 #define R14     R14
  74   R15 = 15,
  75 #define R15     R15
  76 };
  77 #endif
  78
  79 typedef int freg_t;
  80
  81 /* Number of FPU registers.  */
  82 #define NFPREG  16
  83
  84 /* Structure to describe FPU registers.  */
  85 typedef freg_t fpregset_t[NFPREG];
  86
  87 /* Context to describe whole processor state.  */
  88 typedef struct
  89   {
  90     gregset_t gregs;
  91     fpregset_t fpregs;
  92     fpregset_t xfpregs;
  93     unsigned int fpscr;
  94     unsigned int fpul;
  95     unsigned int macl;
  96     unsigned int mach;
  97   } mcontext_t;
  98
  99 /* Userlevel context.  */
 100 typedef struct ucontext
 101   {
 102     unsigned long int uc_flags;
 103     struct ucontext *uc_link;
 104     stack_t uc_stack;
 105     mcontext_t uc_mcontext;
 106     __sigset_t uc_sigmask;
 107   } ucontext_t;
 108
 109 #endif /* sys/ucontext.h */