include/coff/ecoff-ext.h

   1 /* MIPS `ECOFF' symbol table external format.
   2    Copyright 1992 Free Software Foundation.
   3    Contributed by Cygnus Support.  Written by John Gilmore.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /* ECOFF uses COFF-like section structures, but its own symbol format.
  22    This file defines the symbol format in fields whose size and alignment
  23    will not vary on different host systems.  The bfd module coff-msym.c
  24    converts between external and internal forms of this information,
  25    deals with byte order issues, etc.  */
  26
  27 /* File header as a set of bytes */
  28
  29 struct hdr_ext {
  30         char    h_magic[2];
  31         char    h_vstamp[2];
  32         char    h_ilineMax[4];
  33         char    h_cbLine[4];
  34         char    h_cbLineOffset[4];
  35         char    h_idnMax[4];
  36         char    h_cbDnOffset[4];
  37         char    h_ipdMax[4];
  38         char    h_cbPdOffset[4];
  39         char    h_isymMax[4];
  40         char    h_cbSymOffset[4];
  41         char    h_ioptMax[4];
  42         char    h_cbOptOffset[4];
  43         char    h_iauxMax[4];
  44         char    h_cbAuxOffset[4];
  45         char    h_issMax[4];
  46         char    h_cbSsOffset[4];
  47         char    h_issExtMax[4];
  48         char    h_cbSsExtOffset[4];
  49         char    h_ifdMax[4];
  50         char    h_cbFdOffset[4];
  51         char    h_crfd[4];
  52         char    h_cbRfdOffset[4];
  53         char    h_iextMax[4];
  54         char    h_cbExtOffset[4];
  55 };
  56
  57 /* File descriptor external record */
  58
  59 struct fdr_ext {
  60         char    f_adr[4];
  61         char    f_rss[4];
  62         char    f_issBase[4];
  63         char    f_cbSs[4];
  64         char    f_isymBase[4];
  65         char    f_csym[4];
  66         char    f_ilineBase[4];
  67         char    f_cline[4];
  68         char    f_ioptBase[4];
  69         char    f_copt[4];
  70         char    f_ipdFirst[2];
  71         char    f_cpd[2];
  72         char    f_iauxBase[4];
  73         char    f_caux[4];
  74         char    f_rfdBase[4];
  75         char    f_crfd[4];
  76         char    f_bits1[1];
  77         char    f_bits2[3];
  78         char    f_cbLineOffset[4];
  79         char    f_cbLine[4];
  80 };
  81
  82 #define FDR_BITS1_LANG_BIG              0xF8
  83 #define FDR_BITS1_LANG_SH_BIG           3
  84 #define FDR_BITS1_LANG_LITTLE           0x1F
  85 #define FDR_BITS1_LANG_SH_LITTLE        0
  86
  87 #define FDR_BITS1_FMERGE_BIG            0x04
  88 #define FDR_BITS1_FMERGE_LITTLE         0x20
  89
  90 #define FDR_BITS1_FREADIN_BIG           0x02
  91 #define FDR_BITS1_FREADIN_LITTLE        0x40
  92
  93 #define FDR_BITS1_FBIGENDIAN_BIG        0x01
  94 #define FDR_BITS1_FBIGENDIAN_LITTLE     0x80
  95
  96 #define FDR_BITS2_GLEVEL_BIG            0xC0
  97 #define FDR_BITS2_GLEVEL_SH_BIG         6
  98 #define FDR_BITS2_GLEVEL_LITTLE         0x03
  99 #define FDR_BITS2_GLEVEL_SH_LITTLE      0
 100
 101 /* We ignore the `reserved' field in bits2. */
 102
 103
 104 /* Procedure descriptor external record */
 105
 106 struct pdr_ext {
 107         char    p_adr[4];
 108         char    p_isym[4];
 109         char    p_iline[4];
 110         char    p_regmask[4];
 111         char    p_regoffset[4];
 112         char    p_iopt[4];
 113         char    p_fregmask[4];
 114         char    p_fregoffset[4];
 115         char    p_frameoffset[4];
 116         char    p_framereg[2];
 117         char    p_pcreg[2];
 118         char    p_lnLow[4];
 119         char    p_lnHigh[4];
 120         char    p_cbLineOffset[4];
 121 };
 122
 123 /* Line numbers */
 124
 125 struct line_ext {
 126         char    l_line[4];
 127 };
 128
 129 /* Symbol external record */
 130
 131 struct sym_ext {
 132         char    s_iss[4];
 133         char    s_value[4];
 134         char    s_bits1[1];
 135         char    s_bits2[1];
 136         char    s_bits3[1];
 137         char    s_bits4[1];
 138 };
 139
 140 #define SYM_BITS1_ST_BIG                0xFC
 141 #define SYM_BITS1_ST_SH_BIG             2
 142 #define SYM_BITS1_ST_LITTLE             0x3F
 143 #define SYM_BITS1_ST_SH_LITTLE          0
 144
 145 #define SYM_BITS1_SC_BIG                0x03
 146 #define SYM_BITS1_SC_SH_LEFT_BIG        3
 147 #define SYM_BITS1_SC_LITTLE             0xC0
 148 #define SYM_BITS1_SC_SH_LITTLE          6
 149
 150 #define SYM_BITS2_SC_BIG                0xE0
 151 #define SYM_BITS2_SC_SH_BIG             5
 152 #define SYM_BITS2_SC_LITTLE             0x07
 153 #define SYM_BITS2_SC_SH_LEFT_LITTLE     2
 154
 155 #define SYM_BITS2_RESERVED_BIG          0x10
 156 #define SYM_BITS2_RESERVED_LITTLE       0x08
 157
 158 #define SYM_BITS2_INDEX_BIG             0x0F
 159 #define SYM_BITS2_INDEX_SH_LEFT_BIG     16
 160 #define SYM_BITS2_INDEX_LITTLE          0xF0
 161 #define SYM_BITS2_INDEX_SH_LITTLE       4
 162
 163 #define SYM_BITS3_INDEX_SH_LEFT_BIG     8
 164 #define SYM_BITS3_INDEX_SH_LEFT_LITTLE  4
 165
 166 #define SYM_BITS4_INDEX_SH_LEFT_BIG     0
 167 #define SYM_BITS4_INDEX_SH_LEFT_LITTLE  12
 168
 169 /* External symbol external record */
 170
 171 struct ext_ext {
 172         char    es_bits1[1];
 173         char    es_bits2[1];
 174         char    es_ifd[2];
 175         struct  sym_ext es_asym;
 176 };
 177
 178 #define EXT_BITS1_JMPTBL_BIG            0x80
 179 #define EXT_BITS1_JMPTBL_LITTLE         0x01
 180
 181 #define EXT_BITS1_COBOL_MAIN_BIG        0x40
 182 #define EXT_BITS1_COBOL_MAIN_LITTLE     0x02
 183
 184 #define EXT_BITS1_WEAKEXT_BIG           0x20
 185 #define EXT_BITS1_WEAKEXT_LITTLE        0x04
 186
 187 /* Type information external record */
 188
 189 struct tir_ext {
 190         char    t_bits1[1];
 191         char    t_tq45[1];
 192         char    t_tq01[1];
 193         char    t_tq23[1];
 194 };
 195
 196 #define TIR_BITS1_FBITFIELD_BIG         0x80
 197 #define TIR_BITS1_FBITFIELD_LITTLE      0x01
 198
 199 #define TIR_BITS1_CONTINUED_BIG         0x40
 200 #define TIR_BITS1_CONTINUED_LITTLE      0x02
 201
 202 #define TIR_BITS1_BT_BIG                0x3F
 203 #define TIR_BITS1_BT_SH_BIG             0
 204 #define TIR_BITS1_BT_LITTLE             0xFC
 205 #define TIR_BITS1_BT_SH_LITTLE          2
 206
 207 #define TIR_BITS_TQ4_BIG                0xF0
 208 #define TIR_BITS_TQ4_SH_BIG             4
 209 #define TIR_BITS_TQ5_BIG                0x0F
 210 #define TIR_BITS_TQ5_SH_BIG             0
 211 #define TIR_BITS_TQ4_LITTLE             0x0F
 212 #define TIR_BITS_TQ4_SH_LITTLE          0
 213 #define TIR_BITS_TQ5_LITTLE             0xF0
 214 #define TIR_BITS_TQ5_SH_LITTLE          4
 215
 216 #define TIR_BITS_TQ0_BIG                0xF0
 217 #define TIR_BITS_TQ0_SH_BIG             4
 218 #define TIR_BITS_TQ1_BIG                0x0F
 219 #define TIR_BITS_TQ1_SH_BIG             0
 220 #define TIR_BITS_TQ0_LITTLE             0x0F
 221 #define TIR_BITS_TQ0_SH_LITTLE          0
 222 #define TIR_BITS_TQ1_LITTLE             0xF0
 223 #define TIR_BITS_TQ1_SH_LITTLE          4
 224
 225 #define TIR_BITS_TQ2_BIG                0xF0
 226 #define TIR_BITS_TQ2_SH_BIG             4
 227 #define TIR_BITS_TQ3_BIG                0x0F
 228 #define TIR_BITS_TQ3_SH_BIG             0
 229 #define TIR_BITS_TQ2_LITTLE             0x0F
 230 #define TIR_BITS_TQ2_SH_LITTLE          0
 231 #define TIR_BITS_TQ3_LITTLE             0xF0
 232 #define TIR_BITS_TQ3_SH_LITTLE          4
 233
 234
 235 /* Relative symbol external record */
 236
 237 struct rndx_ext {
 238         char    r_bits[4];
 239 };
 240
 241 #define RNDX_BITS0_RFD_SH_LEFT_BIG      4
 242 #define RNDX_BITS1_RFD_BIG              0xF0
 243 #define RNDX_BITS1_RFD_SH_BIG           4
 244
 245 #define RNDX_BITS0_RFD_SH_LEFT_LITTLE   0
 246 #define RNDX_BITS1_RFD_LITTLE           0x0F
 247 #define RNDX_BITS1_RFD_SH_LEFT_LITTLE   8
 248
 249 #define RNDX_BITS1_INDEX_BIG            0x0F
 250 #define RNDX_BITS1_INDEX_SH_LEFT_BIG    16
 251 #define RNDX_BITS2_INDEX_SH_LEFT_BIG    8
 252 #define RNDX_BITS3_INDEX_SH_LEFT_BIG    0
 253
 254 #define RNDX_BITS1_INDEX_LITTLE         0xF0
 255 #define RNDX_BITS1_INDEX_SH_LITTLE      4
 256 #define RNDX_BITS2_INDEX_SH_LEFT_LITTLE 4
 257 #define RNDX_BITS3_INDEX_SH_LEFT_LITTLE 12
 258
 259
 260 /* Dense numbers external record */
 261
 262 struct dnr_ext {
 263         char    d_rfd[4];
 264         char    d_index[4];
 265 };
 266
 267 /* Auxliliary symbol information external record */
 268
 269 union aux_ext {
 270         struct tir_ext  a_ti;
 271         struct rndx_ext a_rndx;
 272         char    a_dnLow[4];
 273         char    a_dnHigh[4];
 274         char    a_isym[4];
 275         char    a_iss[4];
 276         char    a_width[4];
 277         char    a_count[4];
 278 };
 279
 280 /* FIXME!  These are copied from ../bfd/libbfd.h */
 281 PROTO (bfd_vma, _do_getb32, (unsigned char *addr));
 282 PROTO (bfd_vma, _do_getl32, (unsigned char *addr));
 283
 284 #define AUX_GET_DNLOW(bigend, ax)       (bigend? _do_getb32 ((ax)->a_dnLow): \
 285                                                  _do_getl32 ((ax)->a_dnLow))
 286 #define AUX_GET_DNHIGH(bigend, ax)      (bigend? _do_getb32 ((ax)->a_dnHigh): \
 287                                                  _do_getl32 ((ax)->a_dnHigh))
 288 #define AUX_GET_ISYM(bigend, ax)        (bigend? _do_getb32 ((ax)->a_isym): \
 289                                                  _do_getl32 ((ax)->a_isym))
 290 #define AUX_GET_ISS(bigend, ax)         (bigend? _do_getb32 ((ax)->a_iss): \
 291                                                  _do_getl32 ((ax)->a_iss))
 292 #define AUX_GET_WIDTH(bigend, ax)       (bigend? _do_getb32 ((ax)->a_width): \
 293                                                  _do_getl32 ((ax)->a_width))
 294 #define AUX_GET_COUNT(bigend, ax)       (bigend? _do_getb32 ((ax)->a_count): \
 295                                                  _do_getl32 ((ax)->a_count))
 296
 297 /* Relative file descriptor */
 298
 299 struct rfd_ext {
 300   char  rfd[4];
 301 };