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/* Target-dependent code for FreeBSD/Alpha.

   Copyright 2001 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 2 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, write to the Free Software

   Foundation, Inc., 59 Temple Place - Suite 330,

   Boston, MA 02111-1307, USA.  */

#include "defs.h"

#include "value.h"

int

alphafbsd_use_struct_convention (int gcc_p, struct type *type)

{

  enum type_code code;

  int i;

  /* All aggregate types that won't fit in a register must be returned

     in memory.  */

  if (TYPE_LENGTH (type) > REGISTER_SIZE)

    return 1;

  /* The only aggregate types that can be returned in a register are

     structs and unions.  Arrays must be returned in memory.  */

  code = TYPE_CODE (type);

  if (code != TYPE_CODE_STRUCT && code != TYPE_CODE_UNION)

    return 1;

  /* We need to check if this struct/union is "integer" like.  For

     this to be true, the offset of each adressable subfield must be

     zero.  Note that bit fields are not addressable.  */

  for (i = 0; i < TYPE_NFIELDS (type); i++)

    {

      /* If the field bitsize is non-zero, it isn't adressable.  */

      if (TYPE_FIELD_BITPOS (type, i) != 0

          && TYPE_FIELD_BITSIZE (type, i) == 0)

        return 1;

    }

  return 0;

}