1 /* coff information for 88k bcs 2 3 Copyright (C) 2001-2014 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 18 MA 02110-1301, USA. */ 19 20 #define DO_NOT_DEFINE_SCNHDR 21 #define L_LNNO_SIZE 4 22 #define DO_NOT_DEFINE_SYMENT 23 #define DO_NOT_DEFINE_AUXENT 24 #include "coff/external.h" 25 26 #define MC88MAGIC 0540 /* 88k BCS executable */ 27 #define MC88DMAGIC 0541 /* DG/UX executable */ 28 #define MC88OMAGIC 0555 /* Object file */ 29 30 #define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \ 31 && ((x).f_magic != MC88DMAGIC) \ 32 && ((x).f_magic != MC88OMAGIC)) 33 34 #define PAGEMAGIC3 0414 /* Split i&d, zero mapped */ 35 #define PAGEMAGICBCS 0413 36 37 /********************** SECTION HEADER **********************/ 38 39 struct external_scnhdr 40 { 41 char s_name[8]; /* section name */ 42 char s_paddr[4]; /* physical address, aliased s_nlib */ 43 char s_vaddr[4]; /* virtual address */ 44 char s_size[4]; /* section size */ 45 char s_scnptr[4]; /* file ptr to raw data for section */ 46 char s_relptr[4]; /* file ptr to relocation */ 47 char s_lnnoptr[4]; /* file ptr to line numbers */ 48 char s_nreloc[4]; /* number of relocation entries */ 49 char s_nlnno[4]; /* number of line number entries*/ 50 char s_flags[4]; /* flags */ 51 }; 52 53 #define SCNHDR struct external_scnhdr 54 #define SCNHSZ 44 55 56 /* Names of "special" sections. */ 57 #define _TEXT ".text" 58 #define _DATA ".data" 59 #define _BSS ".bss" 60 #define _COMMENT ".comment" 61 62 63 /********************** SYMBOLS **********************/ 64 65 #define E_SYMNMLEN 8 /* # characters in a symbol name */ 66 #define E_FILNMLEN 14 /* # characters in a file name */ 67 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ 68 69 struct external_syment 70 { 71 union 72 { 73 char e_name[E_SYMNMLEN]; 74 75 struct 76 { 77 char e_zeroes[4]; 78 char e_offset[4]; 79 } e; 80 81 } e; 82 83 char e_value[4]; 84 char e_scnum[2]; 85 char e_type[2]; 86 char e_sclass[1]; 87 char e_numaux[1]; 88 char pad2[2]; 89 }; 90 91 #define N_BTMASK 017 92 #define N_TMASK 060 93 #define N_BTSHFT 4 94 #define N_TSHIFT 2 95 96 /* Note that this isn't the same shape as other coffs */ 97 union external_auxent 98 { 99 struct 100 { 101 char x_tagndx[4]; /* str, un, or enum tag indx */ 102 /* 4 */ 103 104 union 105 { 106 char x_fsize[4]; /* size of function */ 107 108 struct 109 { 110 char x_lnno[4]; /* declaration line number */ 111 char x_size[4]; /* str/union/array size */ 112 } x_lnsz; 113 114 } x_misc; 115 116 /* 12 */ 117 union 118 { 119 struct /* if ISFCN, tag, or .bb */ 120 { 121 char x_lnnoptr[4]; /* ptr to fcn line # */ 122 char x_endndx[4]; /* entry ndx past block end */ 123 } x_fcn; 124 125 struct /* if ISARY, up to 4 dimen. */ 126 { 127 char x_dimen[E_DIMNUM][2]; 128 } x_ary; 129 130 } x_fcnary; 131 /* 20 */ 132 133 } x_sym; 134 135 union 136 { 137 char x_fname[E_FILNMLEN]; 138 139 struct 140 { 141 char x_zeroes[4]; 142 char x_offset[4]; 143 } x_n; 144 145 } x_file; 146 147 struct 148 { 149 char x_scnlen[4]; /* section length */ 150 char x_nreloc[4]; /* # relocation entries */ 151 char x_nlinno[4]; /* # line numbers */ 152 } x_scn; 153 154 struct 155 { 156 char x_tvfill[4]; /* tv fill value */ 157 char x_tvlen[2]; /* length of .tv */ 158 char x_tvran[2][2]; /* tv range */ 159 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 160 }; 161 162 #define GET_LNSZ_SIZE(abfd, ext) \ 163 H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) 164 #define GET_LNSZ_LNNO(abfd, ext) \ 165 H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno) 166 #define PUT_LNSZ_LNNO(abfd, in, ext) \ 167 H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno) 168 #define PUT_LNSZ_SIZE(abfd, in, ext) \ 169 H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size) 170 #define GET_SCN_NRELOC(abfd, ext) \ 171 H_GET_32 (abfd, ext->x_scn.x_nreloc) 172 #define GET_SCN_NLINNO(abfd, ext) \ 173 H_GET_32 (abfd, ext->x_scn.x_nlinno) 174 #define PUT_SCN_NRELOC(abfd, in, ext) \ 175 H_PUT_32 (abfd, in, ext->x_scn.x_nreloc) 176 #define PUT_SCN_NLINNO(abfd, in, ext) \ 177 H_PUT_32 (abfd,in, ext->x_scn.x_nlinno) 178 179 #define SYMENT struct external_syment 180 #define SYMESZ 20 181 #define AUXENT union external_auxent 182 #define AUXESZ 20 183 184 /********************** RELOCATION DIRECTIVES **********************/ 185 186 struct external_reloc 187 { 188 char r_vaddr[4]; 189 char r_symndx[4]; 190 char r_type[2]; 191 char r_offset[2]; 192 }; 193 194 #define RELOC struct external_reloc 195 #define RELSZ 12 196 197 #define NO_TVNDX 198
