1 /* coff information for 88k bcs 2 3 Copyright 2001 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 18 19 #define DO_NOT_DEFINE_SCNHDR 20 #define L_LNNO_SIZE 4 21 #define DO_NOT_DEFINE_SYMENT 22 #define DO_NOT_DEFINE_AUXENT 23 #include "coff/external.h" 24 25 #define MC88MAGIC 0540 /* 88k BCS executable */ 26 #define MC88DMAGIC 0541 /* DG/UX executable */ 27 #define MC88OMAGIC 0555 /* Object file */ 28 29 #define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \ 30 && ((x).f_magic != MC88DMAGIC) \ 31 && ((x).f_magic != MC88OMAGIC)) 32 33 #define PAGEMAGIC3 0414 /* Split i&d, zero mapped */ 34 #define PAGEMAGICBCS 0413 35 36 /********************** SECTION HEADER **********************/ 37 38 struct external_scnhdr 39 { 40 char s_name[8]; /* section name */ 41 char s_paddr[4]; /* physical address, aliased s_nlib */ 42 char s_vaddr[4]; /* virtual address */ 43 char s_size[4]; /* section size */ 44 char s_scnptr[4]; /* file ptr to raw data for section */ 45 char s_relptr[4]; /* file ptr to relocation */ 46 char s_lnnoptr[4]; /* file ptr to line numbers */ 47 char s_nreloc[4]; /* number of relocation entries */ 48 char s_nlnno[4]; /* number of line number entries*/ 49 char s_flags[4]; /* flags */ 50 }; 51 52 #define SCNHDR struct external_scnhdr 53 #define SCNHSZ 44 54 55 /* Names of "special" sections. */ 56 #define _TEXT ".text" 57 #define _DATA ".data" 58 #define _BSS ".bss" 59 #define _COMMENT ".comment" 60 61 62 /********************** SYMBOLS **********************/ 63 64 #define E_SYMNMLEN 8 /* # characters in a symbol name */ 65 #define E_FILNMLEN 14 /* # characters in a file name */ 66 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ 67 68 struct external_syment 69 { 70 union 71 { 72 char e_name[E_SYMNMLEN]; 73 74 struct 75 { 76 char e_zeroes[4]; 77 char e_offset[4]; 78 } e; 79 80 } e; 81 82 char e_value[4]; 83 char e_scnum[2]; 84 char e_type[2]; 85 char e_sclass[1]; 86 char e_numaux[1]; 87 char pad2[2]; 88 }; 89 90 #define N_BTMASK 017 91 #define N_TMASK 060 92 #define N_BTSHFT 4 93 #define N_TSHIFT 2 94 95 /* Note that this isn't the same shape as other coffs */ 96 union external_auxent 97 { 98 struct 99 { 100 char x_tagndx[4]; /* str, un, or enum tag indx */ 101 /* 4 */ 102 103 union 104 { 105 char x_fsize[4]; /* size of function */ 106 107 struct 108 { 109 char x_lnno[4]; /* declaration line number */ 110 char x_size[4]; /* str/union/array size */ 111 } x_lnsz; 112 113 } x_misc; 114 115 /* 12 */ 116 union 117 { 118 struct /* if ISFCN, tag, or .bb */ 119 { 120 char x_lnnoptr[4]; /* ptr to fcn line # */ 121 char x_endndx[4]; /* entry ndx past block end */ 122 } x_fcn; 123 124 struct /* if ISARY, up to 4 dimen. */ 125 { 126 char x_dimen[E_DIMNUM][2]; 127 } x_ary; 128 129 } x_fcnary; 130 /* 20 */ 131 132 } x_sym; 133 134 union 135 { 136 char x_fname[E_FILNMLEN]; 137 138 struct 139 { 140 char x_zeroes[4]; 141 char x_offset[4]; 142 } x_n; 143 144 } x_file; 145 146 struct 147 { 148 char x_scnlen[4]; /* section length */ 149 char x_nreloc[4]; /* # relocation entries */ 150 char x_nlinno[4]; /* # line numbers */ 151 } x_scn; 152 153 struct 154 { 155 char x_tvfill[4]; /* tv fill value */ 156 char x_tvlen[2]; /* length of .tv */ 157 char x_tvran[2][2]; /* tv range */ 158 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 159 }; 160 161 #define GET_LNSZ_SIZE(abfd, ext) \ 162 H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) 163 #define GET_LNSZ_LNNO(abfd, ext) \ 164 H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno) 165 #define PUT_LNSZ_LNNO(abfd, in, ext) \ 166 H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno) 167 #define PUT_LNSZ_SIZE(abfd, in, ext) \ 168 H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size) 169 #define GET_SCN_NRELOC(abfd, ext) \ 170 H_GET_32 (abfd, ext->x_scn.x_nreloc) 171 #define GET_SCN_NLINNO(abfd, ext) \ 172 H_GET_32 (abfd, ext->x_scn.x_nlinno) 173 #define PUT_SCN_NRELOC(abfd, in, ext) \ 174 H_PUT_32 (abfd, in, ext->x_scn.x_nreloc) 175 #define PUT_SCN_NLINNO(abfd, in, ext) \ 176 H_PUT_32 (abfd,in, ext->x_scn.x_nlinno) 177 178 #define SYMENT struct external_syment 179 #define SYMESZ 20 180 #define AUXENT union external_auxent 181 #define AUXESZ 20 182 183 /********************** RELOCATION DIRECTIVES **********************/ 184 185 struct external_reloc 186 { 187 char r_vaddr[4]; 188 char r_symndx[4]; 189 char r_type[2]; 190 char r_offset[2]; 191 }; 192 193 #define RELOC struct external_reloc 194 #define RELSZ 12 195 196 #define NO_TVNDX 197