Subversion Repositories openrisc_2011-10-31

/* BFD back-end for Apollo 68000 COFF binaries.

   Copyright 1990, 1991, 1992, 1993, 1994, 1999, 2000, 2001, 2002, 2003,

   2007 Free Software Foundation, Inc.

   By Troy Rollo (troy@cbme.unsw.edu.au)

   Based on m68k standard COFF version Written by Cygnus Support.

   This file is part of BFD, the Binary File Descriptor library.

   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, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

#include "sysdep.h"

#include "bfd.h"

#include "libbfd.h"

#include "coff/apollo.h"

#include "coff/internal.h"

#include "libcoff.h"

#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)

#ifdef ONLY_DECLARE_RELOCS

extern reloc_howto_type apollocoff_howto_table[];

#else

reloc_howto_type apollocoff_howto_table[] =

  {

    HOWTO (R_RELBYTE,          0,  0,     8,  FALSE, 0, complain_overflow_bitfield, 0, "8", TRUE, 0x000000ff,0x000000ff, FALSE),

    HOWTO (R_RELWORD,          0,  1,    16, FALSE, 0, complain_overflow_bitfield, 0, "16",        TRUE, 0x0000ffff,0x0000ffff, FALSE),

    HOWTO (R_RELLONG,          0,  2,    32, FALSE, 0, complain_overflow_bitfield, 0, "32",        TRUE, 0xffffffff,0xffffffff, FALSE),

    HOWTO (R_PCRBYTE,          0,  0,     8,  TRUE,  0, complain_overflow_signed,   0, "DISP8",   TRUE, 0x000000ff,0x000000ff, FALSE),

    HOWTO (R_PCRWORD,          0,  1,    16, TRUE,  0, complain_overflow_signed,   0, "DISP16",  TRUE, 0x0000ffff,0x0000ffff, FALSE),

    HOWTO (R_PCRLONG,          0,  2,    32, TRUE,  0, complain_overflow_signed,   0, "DISP32",  TRUE, 0xffffffff,0xffffffff, FALSE),

    HOWTO (R_RELLONG_NEG,      0,  -2,   32, FALSE, 0, complain_overflow_bitfield, 0, "-32",       TRUE, 0xffffffff,0xffffffff, FALSE),

  };

#endif /* not ONLY_DECLARE_RELOCS */

#ifndef BADMAG

#define BADMAG(x) M68KBADMAG(x)

#endif

#define APOLLO_M68 1            /* Customize coffcode.h */

/* Turn a howto into a reloc number.  */

extern void apollo_rtype2howto PARAMS ((arelent *, int));

extern int  apollo_howto2rtype PARAMS ((reloc_howto_type *));

#ifndef ONLY_DECLARE_RELOCS

void

apollo_rtype2howto (internal, relocentry)

     arelent *internal;

     int relocentry;

{

  switch (relocentry)

    {

    case R_RELBYTE:     internal->howto = apollocoff_howto_table + 0; break;

    case R_RELWORD:     internal->howto = apollocoff_howto_table + 1; break;

    case R_RELLONG:     internal->howto = apollocoff_howto_table + 2; break;

    case R_PCRBYTE:     internal->howto = apollocoff_howto_table + 3; break;

    case R_PCRWORD:     internal->howto = apollocoff_howto_table + 4; break;

    case R_PCRLONG:     internal->howto = apollocoff_howto_table + 5; break;

    case R_RELLONG_NEG: internal->howto = apollocoff_howto_table + 6; break;

    }

}

int

apollo_howto2rtype (internal)

     reloc_howto_type *internal;

{

  if (internal->pc_relative)

    {

      switch (internal->bitsize)

        {

        case 32: return R_PCRLONG;

        case 16: return R_PCRWORD;

        case 8: return R_PCRBYTE;

        }

    }

  else

    {

      switch (internal->bitsize)

        {

        case 32: return R_RELLONG;

        case 16: return R_RELWORD;

        case 8: return R_RELBYTE;

        }

    }

  return R_RELLONG;

}

#endif /* not ONLY_DECLARE_RELOCS */

#define RTYPE2HOWTO(internal, relocentry) \

  apollo_rtype2howto (internal, (relocentry)->r_type)

#define SELECT_RELOC(external, internal) \

  external.r_type = apollo_howto2rtype (internal);

#include "coffcode.h"

#ifndef TARGET_SYM

#define TARGET_SYM apollocoff_vec

#endif

#ifndef TARGET_NAME

#define TARGET_NAME "apollo-m68k"

#endif

#ifdef NAMES_HAVE_UNDERSCORE

CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL, COFF_SWAP_TABLE)

#else

CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL, COFF_SWAP_TABLE)

#endif