| 1 | /* BFD back-end for Motorola 68000 COFF binaries. |
| 2 | Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
| 3 | Written by Cygnus Support. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | #include "bfd.h" |
| 22 | #include "sysdep.h" |
| 23 | #include "libbfd.h" |
| 24 | #include "obstack.h" |
| 25 | #include "coff/m68k.h" |
| 26 | #include "coff/internal.h" |
| 27 | #include "libcoff.h" |
| 28 | |
| 29 | #ifdef ONLY_DECLARE_RELOCS |
| 30 | extern reloc_howto_type m68kcoff_howto_table[]; |
| 31 | #else |
| 32 | reloc_howto_type m68kcoff_howto_table[] = |
| 33 | { |
| 34 | HOWTO(R_RELBYTE, 0, 0, 8, false, 0, true, true,0,"8", true, 0x000000ff,0x000000ff, false), |
| 35 | HOWTO(R_RELWORD, 0, 1, 16, false, 0, true, true,0,"16", true, 0x0000ffff,0x0000ffff, false), |
| 36 | HOWTO(R_RELLONG, 0, 2, 32, false, 0, true, true,0,"32", true, 0xffffffff,0xffffffff, false), |
| 37 | HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, false, true,0,"DISP8", true, 0x000000ff,0x000000ff, false), |
| 38 | HOWTO(R_PCRWORD, 0, 1, 16, true, 0, false, true,0,"DISP16", true, 0x0000ffff,0x0000ffff, false), |
| 39 | HOWTO(R_PCRLONG, 0, 2, 32, true, 0, false, true,0,"DISP32", true, 0xffffffff,0xffffffff, false), |
| 40 | HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, true, true,0,"-32", true, 0xffffffff,0xffffffff, false), |
| 41 | }; |
| 42 | #endif /* not ONLY_DECLARE_RELOCS */ |
| 43 | |
| 44 | #ifndef BADMAG |
| 45 | #define BADMAG(x) M68KBADMAG(x) |
| 46 | #endif |
| 47 | #define M68 1 /* Customize coffcode.h */ |
| 48 | |
| 49 | /* Turn a howto into a reloc number */ |
| 50 | |
| 51 | #ifdef ONLY_DECLARE_RELOCS |
| 52 | extern void m68k_rtype2howto PARAMS ((arelent *internal, int relocentry)); |
| 53 | extern int m68k_howto2rtype PARAMS ((CONST struct reloc_howto_struct *)); |
| 54 | #else |
| 55 | void |
| 56 | m68k_rtype2howto(internal, relocentry) |
| 57 | arelent *internal; |
| 58 | int relocentry; |
| 59 | { |
| 60 | switch (relocentry) |
| 61 | { |
| 62 | case R_RELBYTE: internal->howto = m68kcoff_howto_table + 0; break; |
| 63 | case R_RELWORD: internal->howto = m68kcoff_howto_table + 1; break; |
| 64 | case R_RELLONG: internal->howto = m68kcoff_howto_table + 2; break; |
| 65 | case R_PCRBYTE: internal->howto = m68kcoff_howto_table + 3; break; |
| 66 | case R_PCRWORD: internal->howto = m68kcoff_howto_table + 4; break; |
| 67 | case R_PCRLONG: internal->howto = m68kcoff_howto_table + 5; break; |
| 68 | case R_RELLONG_NEG: internal->howto = m68kcoff_howto_table + 6; break; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | int |
| 73 | m68k_howto2rtype (internal) |
| 74 | CONST struct reloc_howto_struct *internal; |
| 75 | { |
| 76 | if (internal->pc_relative) |
| 77 | { |
| 78 | switch (internal->bitsize) |
| 79 | { |
| 80 | case 32: return R_PCRLONG; |
| 81 | case 16: return R_PCRWORD; |
| 82 | case 8: return R_PCRBYTE; |
| 83 | } |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | switch (internal->bitsize) |
| 88 | { |
| 89 | case 32: return R_RELLONG; |
| 90 | case 16: return R_RELWORD; |
| 91 | case 8: return R_RELBYTE; |
| 92 | } |
| 93 | } |
| 94 | return R_RELLONG; |
| 95 | } |
| 96 | #endif /* not ONLY_DECLARE_RELOCS */ |
| 97 | |
| 98 | #define RTYPE2HOWTO(internal, relocentry) \ |
| 99 | m68k_rtype2howto(internal, (relocentry)->r_type) |
| 100 | |
| 101 | #define SELECT_RELOC(external, internal) \ |
| 102 | external = m68k_howto2rtype(internal); |
| 103 | |
| 104 | #include "coffcode.h" |
| 105 | |
| 106 | bfd_target |
| 107 | #ifdef TARGET_SYM |
| 108 | TARGET_SYM = |
| 109 | #else |
| 110 | m68kcoff_vec = |
| 111 | #endif |
| 112 | { |
| 113 | #ifdef TARGET_NAME |
| 114 | TARGET_NAME, |
| 115 | #else |
| 116 | "coff-m68k", /* name */ |
| 117 | #endif |
| 118 | bfd_target_coff_flavour, |
| 119 | true, /* data byte order is big */ |
| 120 | true, /* header byte order is big */ |
| 121 | |
| 122 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 123 | HAS_LINENO | HAS_DEBUG | |
| 124 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT), |
| 125 | |
| 126 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 127 | #ifdef NAMES_HAVE_UNDERSCORE |
| 128 | '_', |
| 129 | #else |
| 130 | 0, /* leading underscore */ |
| 131 | #endif |
| 132 | '/', /* ar_pad_char */ |
| 133 | 15, /* ar_max_namelen */ |
| 134 | 1, /* minimum section alignment */ |
| 135 | _do_getb64, _do_getb_signed_64, _do_putb64, |
| 136 | _do_getb32, _do_getb_signed_32, _do_putb32, |
| 137 | _do_getb16, _do_getb_signed_16, _do_putb16, /* data */ |
| 138 | _do_getb64, _do_getb_signed_64, _do_putb64, |
| 139 | _do_getb32, _do_getb_signed_32, _do_putb32, |
| 140 | _do_getb16, _do_getb_signed_16, _do_putb16, /* hdrs */ |
| 141 | |
| 142 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| 143 | bfd_generic_archive_p, _bfd_dummy_target}, |
| 144 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
| 145 | bfd_false}, |
| 146 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| 147 | _bfd_write_archive_contents, bfd_false}, |
| 148 | |
| 149 | JUMP_TABLE(coff), |
| 150 | COFF_SWAP_TABLE |
| 151 | }; |