| 1 | /* BFD back-end for Apollo 68000 COFF binaries. |
| 2 | Copyright (C) 1990-2018 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 3 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., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "bfd.h" |
| 25 | #include "libbfd.h" |
| 26 | #include "coff/apollo.h" |
| 27 | #include "coff/internal.h" |
| 28 | #include "libcoff.h" |
| 29 | |
| 30 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| 31 | |
| 32 | #ifdef ONLY_DECLARE_RELOCS |
| 33 | extern reloc_howto_type apollocoff_howto_table[]; |
| 34 | #else |
| 35 | reloc_howto_type apollocoff_howto_table[] = |
| 36 | { |
| 37 | HOWTO (R_RELBYTE, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", TRUE, 0x000000ff,0x000000ff, FALSE), |
| 38 | HOWTO (R_RELWORD, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", TRUE, 0x0000ffff,0x0000ffff, FALSE), |
| 39 | HOWTO (R_RELLONG, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", TRUE, 0xffffffff,0xffffffff, FALSE), |
| 40 | HOWTO (R_PCRBYTE, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", TRUE, 0x000000ff,0x000000ff, FALSE), |
| 41 | HOWTO (R_PCRWORD, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE), |
| 42 | HOWTO (R_PCRLONG, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", TRUE, 0xffffffff,0xffffffff, FALSE), |
| 43 | HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE, 0, complain_overflow_bitfield, 0, "-32", TRUE, 0xffffffff,0xffffffff, FALSE), |
| 44 | }; |
| 45 | #endif /* not ONLY_DECLARE_RELOCS */ |
| 46 | |
| 47 | #ifndef BADMAG |
| 48 | #define BADMAG(x) M68KBADMAG(x) |
| 49 | #endif |
| 50 | #define APOLLO_M68 1 /* Customize coffcode.h */ |
| 51 | |
| 52 | /* Turn a howto into a reloc number. */ |
| 53 | |
| 54 | extern void apollo_rtype2howto (arelent *, int); |
| 55 | extern int apollo_howto2rtype (reloc_howto_type *); |
| 56 | #ifndef ONLY_DECLARE_RELOCS |
| 57 | |
| 58 | void |
| 59 | apollo_rtype2howto (arelent *internal, int relocentry) |
| 60 | { |
| 61 | switch (relocentry) |
| 62 | { |
| 63 | case R_RELBYTE: internal->howto = apollocoff_howto_table + 0; break; |
| 64 | case R_RELWORD: internal->howto = apollocoff_howto_table + 1; break; |
| 65 | case R_RELLONG: internal->howto = apollocoff_howto_table + 2; break; |
| 66 | case R_PCRBYTE: internal->howto = apollocoff_howto_table + 3; break; |
| 67 | case R_PCRWORD: internal->howto = apollocoff_howto_table + 4; break; |
| 68 | case R_PCRLONG: internal->howto = apollocoff_howto_table + 5; break; |
| 69 | case R_RELLONG_NEG: internal->howto = apollocoff_howto_table + 6; break; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | int |
| 74 | apollo_howto2rtype (reloc_howto_type *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 | apollo_rtype2howto (internal, (relocentry)->r_type) |
| 100 | |
| 101 | #define SELECT_RELOC(external, internal) \ |
| 102 | external.r_type = apollo_howto2rtype (internal); |
| 103 | |
| 104 | #define bfd_pe_print_pdata NULL |
| 105 | |
| 106 | #include "coffcode.h" |
| 107 | |
| 108 | #ifndef TARGET_SYM |
| 109 | #define TARGET_SYM m68k_coff_apollo_vec |
| 110 | #endif |
| 111 | |
| 112 | #ifndef TARGET_NAME |
| 113 | #define TARGET_NAME "apollo-m68k" |
| 114 | #endif |
| 115 | |
| 116 | #ifdef NAMES_HAVE_UNDERSCORE |
| 117 | CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL, COFF_SWAP_TABLE) |
| 118 | #else |
| 119 | CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL, COFF_SWAP_TABLE) |
| 120 | #endif |