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

   1 /* Copyright (C) 1997-2024 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 /* Don't rely on this, the interface is currently messed up and may need to
  19    be broken to be fixed.  */
  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 #ifdef __USE_MISC
  30 # define __ctx(fld) fld
  31 #else
  32 # define __ctx(fld) __ ## fld
  33 #endif
  34
  35 #ifdef __USE_MISC
  36 /* Type for general register.  */
  37 typedef unsigned long int greg_t;
  38
  39 /* Number of general registers.  */
  40 # define NGREG  80
  41 # define NFPREG 32
  42
  43 /* Container for all general registers.  */
  44 typedef struct gregset
  45   {
  46     greg_t g_regs[32];
  47     greg_t sr_regs[8];
  48     greg_t cr_regs[24];
  49     greg_t g_pad[16];
  50   } gregset_t;
  51
  52 /* Container for all FPU registers.  */
  53 typedef struct
  54   {
  55     double fp_dregs[32];
  56   } fpregset_t;
  57 #endif
  58
  59 /* Context to describe whole processor state.  */
  60 typedef struct
  61   {
  62     unsigned long int __ctx(sc_flags);
  63     unsigned long int __ctx(sc_gr)[32];
  64     unsigned long long int __ctx(sc_fr)[32];
  65     unsigned long int __ctx(sc_iasq)[2];
  66     unsigned long int __ctx(sc_iaoq)[2];
  67     unsigned long int __ctx(sc_sar);
  68   } mcontext_t;
  69
  70 /* Userlevel context.  */
  71 typedef struct ucontext_t
  72   {
  73     unsigned long int __ctx(uc_flags);
  74     struct ucontext_t *uc_link;
  75     stack_t uc_stack;
  76     mcontext_t uc_mcontext;
  77     sigset_t uc_sigmask;
  78   } ucontext_t;
  79
  80 #undef __ctx
  81
  82 #endif /* sys/ucontext.h */