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

   1 /* Copyright (C) 1999-2015 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 /* Where is System V/SH ABI?  */
  19
  20 #ifndef _SYS_UCONTEXT_H
  21 #define _SYS_UCONTEXT_H 1
  22
  23 #include <features.h>
  24 #include <signal.h>
  25
  26 /* We need the signal context definitions even if they are not used
  27    included in <signal.h>.  */
  28 #include <bits/sigcontext.h>
  29
  30
  31 typedef int greg_t;
  32
  33 /* Number of general registers.  */
  34 #define NGPREG  16
  35
  36 /* Container for all general registers.  */
  37 typedef greg_t gregset_t[NGPREG];
  38
  39 #ifdef __USE_GNU
  40 /* Number of each register is the `gregset_t' array.  */
  41 enum
  42 {
  43   R0 = 0,
  44 #define R0      R0
  45   R1 = 1,
  46 #define R1      R1
  47   R2 = 2,
  48 #define R2      R2
  49   R3 = 3,
  50 #define R3      R3
  51   R4 = 4,
  52 #define R4      R4
  53   R5 = 5,
  54 #define R5      R5
  55   R6 = 6,
  56 #define R6      R6
  57   R7 = 7,
  58 #define R7      R7
  59   R8 = 8,
  60 #define R8      R8
  61   R9 = 9,
  62 #define R9      R9
  63   R10 = 10,
  64 #define R10     R10
  65   R11 = 11,
  66 #define R11     R11
  67   R12 = 12,
  68 #define R12     R12
  69   R13 = 13,
  70 #define R13     R13
  71   R14 = 14,
  72 #define R14     R14
  73   R15 = 15,
  74 #define R15     R15
  75 };
  76 #endif
  77
  78 #if (defined(__SH4__) || defined(__SH4A__))
  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     unsigned int oldmask;
  91     gregset_t gregs;
  92     unsigned int pc;
  93     unsigned int pr;
  94     unsigned int sr;
  95     unsigned int gbr;
  96     unsigned int mach;
  97     unsigned int macl;
  98     fpregset_t fpregs;
  99     fpregset_t xfpregs;
 100     unsigned int fpscr;
 101     unsigned int fpul;
 102     unsigned int ownedfp;
 103   } mcontext_t;
 104 #else
 105 /* Context to describe whole processor state.  */
 106 typedef struct
 107   {
 108     unsigned int oldmask;
 109     gregset_t gregs;
 110     unsigned int pc;
 111     unsigned int pr;
 112     unsigned int sr;
 113     unsigned int gbr;
 114     unsigned int mach;
 115     unsigned int macl;
 116   } mcontext_t;
 117 #endif /* __SH_FPU_ANY__ */
 118
 119 /* Userlevel context.  */
 120 typedef struct ucontext
 121   {
 122     unsigned long int uc_flags;
 123     struct ucontext *uc_link;
 124     stack_t uc_stack;
 125     mcontext_t uc_mcontext;
 126     __sigset_t uc_sigmask;
 127   } ucontext_t;
 128
 129 #endif /* sys/ucontext.h */