home *** CD-ROM | disk | FTP | other *** search
- /* BFD back-end for Motorola 68000 COFF binaries.
- Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
- 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "libbfd.h"
- #include "obstack.h"
- #include "coff/m68k.h"
- #include "coff/internal.h"
- #include "libcoff.h"
-
- reloc_howto_type m68kcoff_howto_table[] =
- {
- HOWTO(R_RELBYTE, 0, 0, 8, false, 0, true, true,0,"8", true, 0x000000ff,0x000000ff, false),
- HOWTO(R_RELWORD, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff,0x0000ffff, false),
- HOWTO(R_RELLONG, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff,0xffffffff, false),
- HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff,0x000000ff, false),
- HOWTO(R_PCRWORD, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff,0x0000ffff, false),
- HOWTO(R_PCRLONG, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff,0xffffffff, false),
- HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, true, true,0,"-32", true, 0xffffffff,0xffffffff, false),
- };
-
-
- /* Turn a howto into a reloc number */
-
-
- #define BADMAG(x) M68KBADMAG(x)
- #define M68 1 /* Customize coffcode.h */
-
- void
- m68k_rtype2howto(internal, relocentry)
- arelent *internal;
- int relocentry;
- {
- switch (relocentry)
- {
- case R_RELBYTE: internal->howto = m68kcoff_howto_table + 0; break;
- case R_RELWORD: internal->howto = m68kcoff_howto_table + 1; break;
- case R_RELLONG: internal->howto = m68kcoff_howto_table + 2; break;
- case R_PCRBYTE: internal->howto = m68kcoff_howto_table + 3; break;
- case R_PCRWORD: internal->howto = m68kcoff_howto_table + 4; break;
- case R_PCRLONG: internal->howto = m68kcoff_howto_table + 5; break;
- case R_RELLONG_NEG: internal->howto = m68kcoff_howto_table + 6; break;
- }
- }
-
- static int m68k_howto2rtype(internal)
- struct reloc_howto_struct *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;
- }
-
- #define RTYPE2HOWTO(internal, relocentry) m68k_rtype2howto(internal, (relocentry)->r_type)
-
- #define SELECT_RELOC(external, internal) external = m68k_howto2rtype(internal);
- #include "coffcode.h"
-
-
- bfd_target m68kcoff_vec =
- {
- "coff-m68k", /* name */
- bfd_target_coff_flavour,
- true, /* data byte order is big */
- true, /* header byte order is big */
-
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- 0, /* leading underscore */
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- 1, /* minimum section alignment */
- _do_getb64, _do_getb_signed_64, _do_putb64,
- _do_getb32, _do_getb_signed_32, _do_putb32,
- _do_getb16, _do_getb_signed_16, _do_putb16, /* data */
- _do_getb64, _do_getb_signed_64, _do_putb64,
- _do_getb32, _do_getb_signed_32, _do_putb32,
- _do_getb16, _do_getb_signed_16, _do_putb16, /* hdrs */
-
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- JUMP_TABLE(coff),
- COFF_SWAP_TABLE
- };
-