gdb/mips-linux-nat.c

   1 /* Native-dependent code for GNU/Linux on MIPS processors.
   2
   3    Copyright 2001, 2002 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "defs.h"
  23
  24 /* Pseudo registers can not be read.  ptrace does not provide a way to
  25    read (or set) PS_REGNUM, and there's no point in reading or setting
  26    ZERO_REGNUM.  We also can not set BADVADDR, CAUSE, or FCRIR via
  27    ptrace().  */
  28
  29 int
  30 mips_linux_cannot_fetch_register (int regno)
  31 {
  32   if (regno == PS_REGNUM)
  33     return 1;
  34   else if (regno == ZERO_REGNUM)
  35     return 1;
  36   else
  37     return 0;
  38 }
  39
  40 int
  41 mips_linux_cannot_store_register (int regno)
  42 {
  43   if (regno == PS_REGNUM)
  44     return 1;
  45   else if (regno == ZERO_REGNUM)
  46     return 1;
  47   else if (regno == BADVADDR_REGNUM)
  48     return 1;
  49   else if (regno == CAUSE_REGNUM)
  50     return 1;
  51   else if (regno == FCRIR_REGNUM)
  52     return 1;
  53   else
  54     return 0;
  55 }