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

   1 /* Copyright (C) 1999-2023 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    <https://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
  25 #include <bits/types/sigset_t.h>
  26 #include <bits/types/stack_t.h>
  27
  28
  29 typedef int greg_t;
  30
  31 /* Number of general registers.  */
  32 #define __NGREG 16
  33 #ifdef __USE_MISC
  34 # define NGREG  __NGREG
  35 #endif
  36
  37 /* Container for all general registers.  */
  38 typedef greg_t gregset_t[__NGREG];
  39
  40 #ifdef __USE_MISC
  41 /* Number of each register is the `gregset_t' array.  */
  42 enum
  43 {
  44   REG_R0 = 0,
  45 # define REG_R0 REG_R0
  46   REG_R1 = 1,
  47 # define REG_R1 REG_R1
  48   REG_R2 = 2,
  49 # define REG_R2 REG_R2
  50   REG_R3 = 3,
  51 # define REG_R3 REG_R3
  52   REG_R4 = 4,
  53 # define REG_R4 REG_R4
  54   REG_R5 = 5,
  55 # define REG_R5 REG_R5
  56   REG_R6 = 6,
  57 # define REG_R6 REG_R6
  58   REG_R7 = 7,
  59 # define REG_R7 REG_R7
  60   REG_R8 = 8,
  61 # define REG_R8 REG_R8
  62   REG_R9 = 9,
  63 # define REG_R9 REG_R9
  64   REG_R10 = 10,
  65 # define REG_R10        REG_R10
  66   REG_R11 = 11,
  67 # define REG_R11        REG_R11
  68   REG_R12 = 12,
  69 # define REG_R12        REG_R12
  70   REG_R13 = 13,
  71 # define REG_R13        REG_R13
  72   REG_R14 = 14,
  73 # define REG_R14        REG_R14
  74   REG_R15 = 15,
  75 # define REG_R15        REG_R15
  76 };
  77 #endif
  78
  79 typedef int freg_t;
  80
  81 /* Number of FPU registers.  */
  82 #define __NFPREG        16
  83 #ifdef __USE_MISC
  84 # define NFPREG __NFPREG
  85 #endif
  86
  87 /* Structure to describe FPU registers.  */
  88 typedef freg_t fpregset_t[__NFPREG];
  89
  90 #ifdef __USE_MISC
  91 # define __ctx(fld) fld
  92 #else
  93 # define __ctx(fld) __ ## fld
  94 #endif
  95
  96 /* Context to describe whole processor state.  */
  97 typedef struct
  98   {
  99     unsigned int __ctx(oldmask);
 100     gregset_t __ctx(gregs);
 101     unsigned int __ctx(pc);
 102     unsigned int __ctx(pr);
 103     unsigned int __ctx(sr);
 104     unsigned int __ctx(gbr);
 105     unsigned int __ctx(mach);
 106     unsigned int __ctx(macl);
 107     fpregset_t __ctx(fpregs);
 108     fpregset_t __ctx(xfpregs);
 109     unsigned int __ctx(fpscr);
 110     unsigned int __ctx(fpul);
 111     unsigned int __ctx(ownedfp);
 112   } mcontext_t;
 113
 114 /* Userlevel context.  */
 115 typedef struct ucontext_t
 116   {
 117     unsigned long int __ctx(uc_flags);
 118     struct ucontext_t *uc_link;
 119     stack_t uc_stack;
 120     mcontext_t uc_mcontext;
 121     sigset_t uc_sigmask;
 122   } ucontext_t;
 123
 124 #undef __ctx
 125
 126 #endif /* sys/ucontext.h */