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

   1 /* Copyright (C) 2011-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_UCONTEXT_H
  20 #define _SYS_UCONTEXT_H 1
  21
  22 #include <features.h>
  23 #include <signal.h>
  24
  25 /* We need the signal context definitions even if they are not exposed
  26    by <signal.h>.  */
  27 #include <bits/sigcontext.h>
  28 #include <bits/sigstack.h>
  29
  30 /* Get register type and register names. */
  31 #include <arch/abi.h>
  32
  33
  34 /* Type for general register.  */
  35 typedef uint_reg_t greg_t;
  36
  37 /* Number of general registers.  Must agree with <asm/ptrace.h>. */
  38 #define NGREG   64
  39
  40 /* Container for all general registers.  */
  41 typedef greg_t gregset_t[NGREG];
  42
  43 #ifdef __USE_GNU
  44 /* Names for interesting registers in the `gregset_t' array.  */
  45 enum
  46 {
  47   /* ... r0 through r51 are just 0 through 51 ... */
  48   REG_FP = TREG_FP,
  49 # define REG_FP         REG_FP
  50   REG_TP = TREG_TP,
  51 # define REG_TP         REG_TP
  52   REG_SP = TREG_SP,
  53 # define REG_SP         REG_SP
  54   REG_LR = TREG_LR,
  55 # define REG_LR         REG_LR
  56 };
  57 #endif
  58
  59 /* A machine context is exactly a sigcontext.  */
  60 typedef struct sigcontext mcontext_t;
  61
  62 /* Userlevel context.  */
  63 typedef struct ucontext
  64   {
  65     unsigned long int uc_flags;
  66     struct ucontext *uc_link;
  67     stack_t uc_stack;
  68     mcontext_t uc_mcontext;
  69     __sigset_t uc_sigmask;
  70   } ucontext_t;
  71
  72 #endif /* sys/ucontext.h */