| 1 | /* BFD back-end for Apollo 68000 COFF binaries. |
| 2 | Copyright 1990, 91, 92, 93, 94, 95, 1997 Free Software Foundation, Inc. |
| 3 | By Troy Rollo (troy@cbme.unsw.edu.au) |
| 4 | Based on m68k standard COFF version Written by Cygnus Support. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "libbfd.h" |
| 25 | #include "coff/apollo.h" |
| 26 | #include "coff/internal.h" |
| 27 | #include "libcoff.h" |
| 28 | |
| 29 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| 30 | |
| 31 | #ifdef ONLY_DECLARE_RELOCS |
| 32 | extern reloc_howto_type apollocoff_howto_table[]; |
| 33 | #else |
| 34 | reloc_howto_type apollocoff_howto_table[] = |
| 35 | { |
| 36 | HOWTO(R_RELBYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "8", true, 0x000000ff,0x000000ff, false), |
| 37 | HOWTO(R_RELWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, 0, "16", true, 0x0000ffff,0x0000ffff, false), |
| 38 | HOWTO(R_RELLONG, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "32", true, 0xffffffff,0xffffffff, false), |
| 39 | HOWTO(R_PCRBYTE, 0, 0, 8, true, 0, complain_overflow_signed, 0, "DISP8", true, 0x000000ff,0x000000ff, false), |
| 40 | HOWTO(R_PCRWORD, 0, 1, 16, true, 0, complain_overflow_signed, 0, "DISP16", true, 0x0000ffff,0x0000ffff, false), |
| 41 | HOWTO(R_PCRLONG, 0, 2, 32, true, 0, complain_overflow_signed, 0, "DISP32", true, 0xffffffff,0xffffffff, false), |
| 42 | HOWTO(R_RELLONG_NEG, 0, -2, 32, false, 0, complain_overflow_bitfield, 0, "-32", true, 0xffffffff,0xffffffff, false), |
| 43 | }; |
| 44 | #endif /* not ONLY_DECLARE_RELOCS */ |
| 45 | |
| 46 | #ifndef BADMAG |
| 47 | #define BADMAG(x) M68KBADMAG(x) |
| 48 | #endif |
| 49 | #define APOLLO_M68 1 /* Customize coffcode.h */ |
| 50 | |
| 51 | /* Turn a howto into a reloc number */ |
| 52 | |
| 53 | #ifdef ONLY_DECLARE_RELOCS |
| 54 | extern void apollo_rtype2howto PARAMS ((arelent *internal, int relocentry)); |
| 55 | extern int apollo_howto2rtype PARAMS ((reloc_howto_type *)); |
| 56 | #else |
| 57 | void |
| 58 | apollo_rtype2howto(internal, relocentry) |
| 59 | arelent *internal; |
| 60 | int relocentry; |
| 61 | { |
| 62 | switch (relocentry) |
| 63 | { |
| 64 | case R_RELBYTE: internal->howto = apollocoff_howto_table + 0; break; |
| 65 | case R_RELWORD: internal->howto = apollocoff_howto_table + 1; break; |
| 66 | case R_RELLONG: internal->howto = apollocoff_howto_table + 2; break; |
| 67 | case R_PCRBYTE: internal->howto = apollocoff_howto_table + 3; break; |
| 68 | case R_PCRWORD: internal->howto = apollocoff_howto_table + 4; break; |
| 69 | case R_PCRLONG: internal->howto = apollocoff_howto_table + 5; break; |
| 70 | case R_RELLONG_NEG: internal->howto = apollocoff_howto_table + 6; break; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | int |
| 75 | apollo_howto2rtype (internal) |
| 76 | reloc_howto_type *internal; |
| 77 | { |
| 78 | if (internal->pc_relative) |
| 79 | { |
| 80 | switch (internal->bitsize) |
| 81 | { |
| 82 | case 32: return R_PCRLONG; |
| 83 | case 16: return R_PCRWORD; |
| 84 | case 8: return R_PCRBYTE; |
| 85 | } |
| 86 | } |
| 87 | else |
| 88 | { |
| 89 | switch (internal->bitsize) |
| 90 | { |
| 91 | case 32: return R_RELLONG; |
| 92 | case 16: return R_RELWORD; |
| 93 | case 8: return R_RELBYTE; |
| 94 | } |
| 95 | } |
| 96 | return R_RELLONG; |
| 97 | } |
| 98 | #endif /* not ONLY_DECLARE_RELOCS */ |
| 99 | |
| 100 | #define RTYPE2HOWTO(internal, relocentry) \ |
| 101 | apollo_rtype2howto(internal, (relocentry)->r_type) |
| 102 | |
| 103 | #define SELECT_RELOC(external, internal) \ |
| 104 | external.r_type = apollo_howto2rtype(internal); |
| 105 | |
| 106 | #include "coffcode.h" |
| 107 | |
| 108 | const bfd_target |
| 109 | #ifdef TARGET_SYM |
| 110 | TARGET_SYM = |
| 111 | #else |
| 112 | apollocoff_vec = |
| 113 | #endif |
| 114 | { |
| 115 | #ifdef TARGET_NAME |
| 116 | TARGET_NAME, |
| 117 | #else |
| 118 | "apollo-m68k", /* name */ |
| 119 | #endif |
| 120 | bfd_target_coff_flavour, |
| 121 | BFD_ENDIAN_BIG, /* data byte order is big */ |
| 122 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 123 | |
| 124 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 125 | HAS_LINENO | HAS_DEBUG | |
| 126 | HAS_SYMS | HAS_LOCALS | WP_TEXT), |
| 127 | |
| 128 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 129 | #ifdef NAMES_HAVE_UNDERSCORE |
| 130 | '_', |
| 131 | #else |
| 132 | 0, /* leading underscore */ |
| 133 | #endif |
| 134 | '/', /* ar_pad_char */ |
| 135 | 15, /* ar_max_namelen */ |
| 136 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 137 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 138 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ |
| 139 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 140 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 141 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 142 | |
| 143 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| 144 | bfd_generic_archive_p, _bfd_dummy_target}, |
| 145 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
| 146 | bfd_false}, |
| 147 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| 148 | _bfd_write_archive_contents, bfd_false}, |
| 149 | |
| 150 | BFD_JUMP_TABLE_GENERIC (coff), |
| 151 | BFD_JUMP_TABLE_COPY (coff), |
| 152 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 153 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| 154 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 155 | BFD_JUMP_TABLE_RELOCS (coff), |
| 156 | BFD_JUMP_TABLE_WRITE (coff), |
| 157 | BFD_JUMP_TABLE_LINK (coff), |
| 158 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 159 | |
| 160 | COFF_SWAP_TABLE |
| 161 | }; |