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 #ifndef TARGET_SYM 109 #define TARGET_SYM apollocoff_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) 118 #else 119 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL) 120 #endif 121