gdb/i386-linux-tdep.h

   1 /* Target-dependent code for GNU/Linux x86.
   2
   3    Copyright 2002, 2003 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 #ifndef I386_LINUX_TDEP_H
  23 #define I386_LINUX_TDEP_H
  24
  25 /* The Linux kernel pretends there is an additional "orig_eax"
  26    register.  Since GDB needs access to that register to be able to
  27    properly restart system calls when necessary (see
  28    i386-linux-tdep.c) we need our own versions of a number of
  29    functions that deal with GDB's register cache.  */
  30
  31 /* Register number for the "orig_eax" pseudo-register.  If this
  32    pseudo-register contains a value >= 0 it is interpreted as the
  33    system call number that the kernel is supposed to restart.  */
  34 #define I386_LINUX_ORIG_EAX_REGNUM I386_SSE_NUM_REGS
  35
  36 /* Total number of registers for GNU/Linux.  */
  37 #define I386_LINUX_NUM_REGS (I386_LINUX_ORIG_EAX_REGNUM + 1)
  38
  39 #endif /* i386-linux-tdep.h */