include/coff/ecoff-ext.h

   1 /* MIPS `ECOFF' symbol table external format.
   2    Copyright 1992, 1993 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         unsigned char   h_magic[2];
  31         unsigned char   h_vstamp[2];
  32         unsigned char   h_ilineMax[4];
  33         unsigned char   h_cbLine[4];
  34         unsigned char   h_cbLineOffset[4];
  35         unsigned char   h_idnMax[4];
  36         unsigned char   h_cbDnOffset[4];
  37         unsigned char   h_ipdMax[4];
  38         unsigned char   h_cbPdOffset[4];
  39         unsigned char   h_isymMax[4];
  40         unsigned char   h_cbSymOffset[4];
  41         unsigned char   h_ioptMax[4];
  42         unsigned char   h_cbOptOffset[4];
  43         unsigned char   h_iauxMax[4];
  44         unsigned char   h_cbAuxOffset[4];
  45         unsigned char   h_issMax[4];
  46         unsigned char   h_cbSsOffset[4];
  47         unsigned char   h_issExtMax[4];
  48         unsigned char   h_cbSsExtOffset[4];
  49         unsigned char   h_ifdMax[4];
  50         unsigned char   h_cbFdOffset[4];
  51         unsigned char   h_crfd[4];
  52         unsigned char   h_cbRfdOffset[4];
  53         unsigned char   h_iextMax[4];
  54         unsigned char   h_cbExtOffset[4];
  55 };
  56
  57 /* File descriptor external record */
  58
  59 struct fdr_ext {
  60         unsigned char   f_adr[4];
  61         unsigned char   f_rss[4];
  62         unsigned char   f_issBase[4];
  63         unsigned char   f_cbSs[4];
  64         unsigned char   f_isymBase[4];
  65         unsigned char   f_csym[4];
  66         unsigned char   f_ilineBase[4];
  67         unsigned char   f_cline[4];
  68         unsigned char   f_ioptBase[4];
  69         unsigned char   f_copt[4];
  70         unsigned char   f_ipdFirst[2];
  71         unsigned char   f_cpd[2];
  72         unsigned char   f_iauxBase[4];
  73         unsigned char   f_caux[4];
  74         unsigned char   f_rfdBase[4];
  75         unsigned char   f_crfd[4];
  76         unsigned char   f_bits1[1];
  77         unsigned char   f_bits2[3];
  78         unsigned char   f_cbLineOffset[4];
  79         unsigned 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         unsigned char   p_adr[4];
 108         unsigned char   p_isym[4];
 109         unsigned char   p_iline[4];
 110         unsigned char   p_regmask[4];
 111         unsigned char   p_regoffset[4];
 112         unsigned char   p_iopt[4];
 113         unsigned char   p_fregmask[4];
 114         unsigned char   p_fregoffset[4];
 115         unsigned char   p_frameoffset[4];
 116         unsigned char   p_framereg[2];
 117         unsigned char   p_pcreg[2];
 118         unsigned char   p_lnLow[4];
 119         unsigned char   p_lnHigh[4];
 120         unsigned char   p_cbLineOffset[4];
 121 };
 122
 123 /* Line numbers */
 124
 125 struct line_ext {
 126         unsigned char   l_line[4];
 127 };
 128
 129 /* Symbol external record */
 130
 131 struct sym_ext {
 132         unsigned char   s_iss[4];
 133         unsigned char   s_value[4];
 134         unsigned char   s_bits1[1];
 135         unsigned char   s_bits2[1];
 136         unsigned char   s_bits3[1];
 137         unsigned 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         unsigned char   es_bits1[1];
 173         unsigned char   es_bits2[1];
 174         unsigned 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         unsigned char   t_bits1[1];
 191         unsigned char   t_tq45[1];
 192         unsigned char   t_tq01[1];
 193         unsigned 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         unsigned 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         unsigned char   d_rfd[4];
 264         unsigned 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         unsigned char   a_dnLow[4];
 273         unsigned char   a_dnHigh[4];
 274         unsigned char   a_isym[4];
 275         unsigned char   a_iss[4];
 276         unsigned char   a_width[4];
 277         unsigned char   a_count[4];
 278 };
 279
 280 /* FIXME!  These are copied from ../bfd/libbfd.h */
 281 extern bfd_vma _do_getb32 PARAMS ((unsigned char *addr));
 282 extern bfd_vma _do_getl32 PARAMS ((unsigned char *addr));
 283 extern void _do_putb32 PARAMS ((bfd_vma data, unsigned char *addr));
 284 extern void _do_putl32 PARAMS ((bfd_vma data, unsigned char *addr));
 285
 286 #define AUX_GET_ANY(bigend, ax, field) \
 287   ((bigend) ? _do_getb32 ((ax)->field) : _do_getl32 ((ax)->field))
 288
 289 #define AUX_GET_DNLOW(bigend, ax)       AUX_GET_ANY ((bigend), (ax), a_dnLow)
 290 #define AUX_GET_DNHIGH(bigend, ax)      AUX_GET_ANY ((bigend), (ax), a_dnHigh)
 291 #define AUX_GET_ISYM(bigend, ax)        AUX_GET_ANY ((bigend), (ax), a_isym)
 292 #define AUX_GET_ISS(bigend, ax)         AUX_GET_ANY ((bigend), (ax), a_iss)
 293 #define AUX_GET_WIDTH(bigend, ax)       AUX_GET_ANY ((bigend), (ax), a_width)
 294 #define AUX_GET_COUNT(bigend, ax)       AUX_GET_ANY ((bigend), (ax), a_count)
 295
 296 #define AUX_PUT_ANY(bigend, val, ax, field) \
 297   ((bigend) \
 298    ? (_do_putb32 ((val), (ax)->field), 0) \
 299    : (_do_putl32 ((val), (ax)->field), 0))
 300
 301 #define AUX_PUT_DNLOW(bigend, val, ax) \
 302   AUX_PUT_ANY ((bigend), (val), (ax), a_dnLow)
 303 #define AUX_PUT_DNHIGH(bigend, val, ax) \
 304   AUX_PUT_ANY ((bigend), (val), (ax), a_dnHigh)
 305 #define AUX_PUT_ISYM(bigend, val, ax) \
 306   AUX_PUT_ANY ((bigend), (val), (ax), a_isym)
 307 #define AUX_PUT_ISS(bigend, val, ax) \
 308   AUX_PUT_ANY ((bigend), (val), (ax), a_iss)
 309 #define AUX_PUT_WIDTH(bigend, val, ax) \
 310   AUX_PUT_ANY ((bigend), (val), (ax), a_width)
 311 #define AUX_PUT_COUNT(bigend, val, ax) \
 312   AUX_PUT_ANY ((bigend), (val), (ax), a_count)
 313
 314 /* Relative file descriptor */
 315
 316 struct rfd_ext {
 317   unsigned char rfd[4];
 318 };
 319
 320 /* Optimizer symbol external record */
 321
 322 struct opt_ext {
 323   unsigned char o_bits1[1];
 324   unsigned char o_bits2[1];
 325   unsigned char o_bits3[1];
 326   unsigned char o_bits4[1];
 327   struct rndx_ext o_rndx;
 328   unsigned char o_offset[4];
 329 };
 330
 331 #define OPT_BITS2_VALUE_SH_LEFT_BIG     16
 332 #define OPT_BITS2_VALUE_SH_LEFT_LITTLE  0
 333
 334 #define OPT_BITS3_VALUE_SH_LEFT_BIG     8
 335 #define OPT_BITS3_VALUE_SH_LEFT_LITTLE  8
 336
 337 #define OPT_BITS4_VALUE_SH_LEFT_BIG     0
 338 #define OPT_BITS4_VALUE_SH_LEFT_LITTLE  16
 339
 340 /* Prototypes for the swapping functions.  These require that sym.h be
 341    included before this file.  */
 342 extern void ecoff_swap_hdr_in PARAMS ((bfd *, struct hdr_ext *, HDRR *));
 343 extern void ecoff_swap_hdr_out PARAMS ((bfd *, HDRR *, struct hdr_ext *));
 344 extern void ecoff_swap_fdr_in PARAMS ((bfd *, struct fdr_ext *, FDR *));
 345 extern void ecoff_swap_fdr_out PARAMS ((bfd *, FDR *, struct fdr_ext *));
 346 extern void ecoff_swap_pdr_in PARAMS ((bfd *, struct pdr_ext *, PDR *));
 347 extern void ecoff_swap_pdr_out PARAMS ((bfd *, PDR *, struct pdr_ext *));
 348 extern void ecoff_swap_sym_in PARAMS ((bfd *, struct sym_ext *, SYMR *));
 349 extern void ecoff_swap_sym_out PARAMS ((bfd *, SYMR *, struct sym_ext *));
 350 extern void ecoff_swap_ext_in PARAMS ((bfd *, struct ext_ext *, EXTR *));
 351 extern void ecoff_swap_ext_out PARAMS ((bfd *, EXTR *, struct ext_ext *));
 352 extern void ecoff_swap_dnr_in PARAMS ((bfd *, struct dnr_ext *, DNR *));
 353 extern void ecoff_swap_dnr_out PARAMS ((bfd *, DNR *, struct dnr_ext *));
 354 extern void ecoff_swap_tir_in PARAMS ((int bigend, struct tir_ext *, TIR *));
 355 extern void ecoff_swap_tir_out PARAMS ((int bigend, TIR *, struct tir_ext *));
 356 extern void ecoff_swap_rndx_in PARAMS ((int bigend, struct rndx_ext *,
 357                                         RNDXR *));
 358 extern void ecoff_swap_rndx_out PARAMS ((int bigend, RNDXR *,
 359                                          struct rndx_ext *));
 360 extern void ecoff_swap_rfd_in PARAMS ((bfd *, struct rfd_ext *, RFDT *));
 361 extern void ecoff_swap_rfd_out PARAMS ((bfd *, RFDT *, struct rfd_ext *));
 362 extern void ecoff_swap_opt_in PARAMS ((bfd *, struct opt_ext *, OPTR *));
 363 extern void ecoff_swap_opt_out PARAMS ((bfd *, OPTR *, struct opt_ext *));