text: /* QNX Neutrino specific low level interface, for the remote server
     for GDB.
     Copyright (C) 2009-2017 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;
  extern const struct target_desc *tdesc_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;
    nto_tdesc = tdesc_i386;
  }
  
  struct nto_target_ops the_low_target =
  {
    nto_x86_arch_setup,
    0, /* num_regs */
    nto_x86_register_offset,
    x86_breakpoint,
    x86_breakpoint_len
  };
  
  
  
  