1 /* BFD back-end for Apollo 68000 COFF binaries. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1999, 2000 3 Free Software Foundation, Inc. 4 By Troy Rollo (troy@cbme.unsw.edu.au) 5 Based on m68k standard COFF version Written by Cygnus Support. 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 22 23 #include "bfd.h" 24 #include "sysdep.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 #ifdef ONLY_DECLARE_RELOCS 55 extern void apollo_rtype2howto PARAMS ((arelent *internal, int relocentry)); 56 extern int apollo_howto2rtype PARAMS ((reloc_howto_type *)); 57 #else 58 void 59 apollo_rtype2howto(internal, relocentry) 60 arelent *internal; 61 int relocentry; 62 { 63 switch (relocentry) 64 { 65 case R_RELBYTE: internal->howto = apollocoff_howto_table + 0; break; 66 case R_RELWORD: internal->howto = apollocoff_howto_table + 1; break; 67 case R_RELLONG: internal->howto = apollocoff_howto_table + 2; break; 68 case R_PCRBYTE: internal->howto = apollocoff_howto_table + 3; break; 69 case R_PCRWORD: internal->howto = apollocoff_howto_table + 4; break; 70 case R_PCRLONG: internal->howto = apollocoff_howto_table + 5; break; 71 case R_RELLONG_NEG: internal->howto = apollocoff_howto_table + 6; break; 72 } 73 } 74 75 int 76 apollo_howto2rtype (internal) 77 reloc_howto_type *internal; 78 { 79 if (internal->pc_relative) 80 { 81 switch (internal->bitsize) 82 { 83 case 32: return R_PCRLONG; 84 case 16: return R_PCRWORD; 85 case 8: return R_PCRBYTE; 86 } 87 } 88 else 89 { 90 switch (internal->bitsize) 91 { 92 case 32: return R_RELLONG; 93 case 16: return R_RELWORD; 94 case 8: return R_RELBYTE; 95 } 96 } 97 return R_RELLONG; 98 } 99 #endif /* not ONLY_DECLARE_RELOCS */ 100 101 #define RTYPE2HOWTO(internal, relocentry) \ 102 apollo_rtype2howto(internal, (relocentry)->r_type) 103 104 #define SELECT_RELOC(external, internal) \ 105 external.r_type = apollo_howto2rtype(internal); 106 107 #include "coffcode.h" 108 109 #ifndef TARGET_SYM 110 #define TARGET_SYM apollocoff_vec 111 #endif 112 113 #ifndef TARGET_NAME 114 #define TARGET_NAME "apollo-m68k" 115 #endif 116 117 #ifdef NAMES_HAVE_UNDERSCORE 118 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, '_', NULL) 119 #else 120 CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, 0, 0, 0, NULL) 121 #endif 122