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/* QNX Neutrino specific low level interface, for the remote server

   for GDB.

   Copyright (C) 2009, 2010 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include "server.h"

#include "nto-low.h"

#include "regdef.h"

#include "regcache.h"

#include <x86/context.h>

/* Definition auto generated from reg-i386.dep.  */

extern void init_registers_i386 ();

extern struct reg *regs_i386;

const unsigned char x86_breakpoint[] = { 0xCC };

#define x86_breakpoint_len 1

/* Returns offset in appropriate Neutrino's context structure.

   Defined in x86/context.h.

   GDBREGNO is index into regs_i386 array.  It is autogenerated and

   hopefully doesn't change.  */

static int

nto_x86_register_offset (int gdbregno)

{

  if (gdbregno >= 0 && gdbregno < 16)

    {

      X86_CPU_REGISTERS *dummy = (void*)0;

      /* GPRs  */

      switch (gdbregno)

        {

        case 0:

          return (int)&(dummy->eax);

        case 1:

          return (int)&(dummy->ecx);

        case 2:

          return (int)&(dummy->edx);

        case 3:

          return (int)&(dummy->ebx);

        case 4:

          return (int)&(dummy->esp);

        case 5:

          return (int)&(dummy->ebp);

        case 6:

          return (int)&(dummy->esi);

        case 7:

          return (int)&(dummy->edi);

        case 8:

          return (int)&(dummy->eip);

        case 9:

          return (int)&(dummy->efl);

        case 10:

          return (int)&(dummy->cs);

        case 11:

          return (int)&(dummy->ss);

#ifdef __SEGMENTS__

        case 12:

          return (int)&(dummy->ds);

        case 13:

          return (int)&(dummy->es);

        case 14:

          return (int)&(dummy->fs);

        case 15:

          return (int)&(dummy->gs);

#endif

        default:

          return -1;

        }

    }

  return -1;

}

static void

nto_x86_arch_setup (void)

{

  init_registers_i386 ();

  the_low_target.num_regs = 16;

}

struct nto_target_ops the_low_target =

{

  nto_x86_arch_setup,

  0, /* num_regs */

  nto_x86_register_offset,

  x86_breakpoint,

  x86_breakpoint_len

};