gas/config/obj-vms.h

   1 /* VMS object file format
   2    Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000,
   3    2002, 2003 Free Software Foundation, Inc.
   4
   5 This file is part of GAS, the GNU Assembler.
   6
   7 GAS is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as
   9 published by the Free Software Foundation; either version 2,
  10 or (at your option) any later version.
  11
  12 GAS is distributed in the hope that it will be useful, but
  13 WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  15 the GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GAS; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22 /* Tag to validate a.out object file format processing */
  23 #define OBJ_VMS 1
  24
  25 #include "targ-cpu.h"
  26
  27 #define LONGWORD_ALIGNMENT      2
  28
  29 /* This macro controls subsection alignment within a section.
  30  *
  31  * Under VAX/VMS, the linker (and PSECT specifications)
  32  * take care of correctly aligning the segments.
  33  * Doing the alignment here (on initialized data) can
  34  * mess up the calculation of global data PSECT sizes.
  35  */
  36 #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \
  37   (((SEG) == data_section) ? 0 : LONGWORD_ALIGNMENT)
  38
  39 /* This flag is used to remember whether we are in the const or the
  40    data section.  By and large they are identical, but we set a no-write
  41    bit for psects in the const section.  */
  42
  43 extern unsigned char const_flag;
  44
  45 /* This is overloaded onto const_flag, for convenience.  It's used to flag
  46    dummy labels like "gcc2_compiled."  which occur before the first .text
  47    or .data section directive.  */
  48
  49 #define IN_DEFAULT_SECTION 0x80
  50
  51 /* These are defined in obj-vms.c.  */
  52 extern const short seg_N_TYPE[];
  53 extern const segT N_TYPE_seg[];
  54
  55 #undef NO_RELOC
  56 enum reloc_type
  57   {
  58     NO_RELOC, RELOC_32
  59   };
  60
  61 #define N_BADMAG(x)     (0)
  62 #define N_TXTOFF(x)     ( sizeof (struct exec) )
  63 #define N_DATOFF(x)     ( N_TXTOFF(x) + (x).a_text )
  64 #define N_TROFF(x)      ( N_DATOFF(x) + (x).a_data )
  65 #define N_DROFF(x)      ( N_TROFF(x) + (x).a_trsize )
  66 #define N_SYMOFF(x)     ( N_DROFF(x) + (x).a_drsize )
  67 #define N_STROFF(x)     ( N_SYMOFF(x) + (x).a_syms )
  68
  69 /* We use this copy of the exec header for VMS.  We do not actually use it, but
  70    what we actually do is let gas fill in the relevant slots, and when we get
  71    around to writing an obj file, we just pick out what we need.  */
  72
  73 struct exec
  74 {
  75   unsigned long a_text;         /* length of text, in bytes */
  76   unsigned long a_data;         /* length of data, in bytes */
  77   unsigned long a_bss;          /* length of uninitialized data area for file, in bytes */
  78   unsigned long a_trsize;       /* length of relocation info for text, in bytes */
  79   unsigned long a_drsize;       /* length of relocation info for data, in bytes */
  80   unsigned long a_entry;        /* start address */
  81   unsigned long a_syms;         /* length of symbol table data in file, in bytes */
  82 };
  83
  84 typedef struct
  85   {
  86     struct exec header;         /* a.out header */
  87     long string_table_size;     /* names + '\0' + sizeof (int) */
  88   }
  89 object_headers;
  90
  91 /* A single entry in the symbol table
  92  * (this started as a clone of bout.h's nlist, but much was unneeded).
  93  */
  94 struct nlist
  95   {
  96     char *n_name;
  97     unsigned char n_type;       /* See below                            */
  98     unsigned char n_other;      /* used for const_flag and "default section" */
  99     unsigned    : 16;           /* padding for alignment */
 100     int n_desc;                 /* source line number for N_SLINE stabs */
 101   };
 102
 103 /* Legal values of n_type (see aout/stab.def for the majority of the codes).
 104  */
 105 #define N_UNDF  0               /* Undefined symbol     */
 106 #define N_ABS   2               /* Absolute symbol      */
 107 #define N_TEXT  4               /* Text symbol          */
 108 #define N_DATA  6               /* Data symbol          */
 109 #define N_BSS   8               /* BSS symbol           */
 110 #define N_FN    31              /* Filename symbol      */
 111
 112 #define N_EXT   1               /* External symbol (OR'd in with one of above)  */
 113 #define N_TYPE  036             /* Mask for all the type bits                   */
 114
 115 #define N_STAB  0340            /* Mask for all bits used for SDB entries       */
 116
 117 #include "aout/stab_gnu.h"
 118
 119 /* SYMBOL TABLE */
 120 /* Symbol table entry data type */
 121
 122 typedef struct nlist obj_symbol_type;   /* Symbol table entry */
 123
 124 /* Symbol table macros and constants */
 125
 126 #define OBJ_SYMFIELD_TYPE struct VMS_Symbol *
 127
 128 /*
 129  *  Macros to extract information from a symbol table entry.
 130  *  This syntactic indirection allows independence regarding a.out or coff.
 131  *  The argument (s) of all these macros is a pointer to a symbol table entry.
 132  */
 133
 134 /* True if the symbol is external */
 135 #define S_IS_EXTERNAL(s)        ((s)->sy_symbol.n_type & N_EXT)
 136
 137 /* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
 138 #define S_IS_DEFINED(s)         (S_GET_TYPE(s) != N_UNDF)
 139
 140 #define S_IS_COMMON(s)  (S_GET_TYPE(s) == N_UNDF && S_GET_VALUE(s) != 0)
 141
 142 /* Return true for symbols that should not be reduced to section
 143    symbols or eliminated from expressions, because they may be
 144    overridden by the linker.  */
 145 #define S_FORCE_RELOC(s, strict) \
 146   (!SEG_NORMAL (S_GET_SEGMENT (s)))
 147
 148 #define S_IS_REGISTER(s)        ((s)->sy_symbol.n_type == N_REGISTER)
 149
 150 /* True if a debug special symbol entry */
 151 #define S_IS_DEBUG(s)           ((s)->sy_symbol.n_type & N_STAB)
 152 /* True if a symbol is local symbol name */
 153 /* A symbol name whose name begin with ^A is a gas internal pseudo symbol
 154    nameless symbols come from .stab directives.  */
 155 #define S_IS_LOCAL(s)           (S_GET_NAME(s) && \
 156                                  !S_IS_DEBUG(s) && \
 157                                  (strchr(S_GET_NAME(s), '\001') != 0 || \
 158                                   strchr(S_GET_NAME(s), '\002') != 0 || \
 159                                   (S_LOCAL_NAME(s) && !flag_keep_locals)))
 160 /* True if a symbol is not defined in this file */
 161 #define S_IS_EXTERN(s)          ((s)->sy_symbol.n_type & N_EXT)
 162 /* True if the symbol has been generated because of a .stabd directive */
 163 #define S_IS_STABD(s)           (S_GET_NAME(s) == (char *)0)
 164
 165 /* Accessors */
 166 /* The name of the symbol */
 167 #define S_GET_NAME(s)           ((s)->sy_symbol.n_name)
 168 /* The pointer to the string table */
 169 #define S_GET_OFFSET(s)         ((s)->sy_name_offset)
 170 /* The raw type of the symbol */
 171 #define S_GET_RAW_TYPE(s)               ((s)->sy_symbol.n_type)
 172 /* The type of the symbol */
 173 #define S_GET_TYPE(s)           ((s)->sy_symbol.n_type & N_TYPE)
 174 /* The numeric value of the segment */
 175 #define S_GET_SEGMENT(s)        (N_TYPE_seg[S_GET_TYPE(s)])
 176 /* The n_other expression value */
 177 #define S_GET_OTHER(s)          ((s)->sy_symbol.n_other)
 178 /* The n_desc expression value */
 179 #define S_GET_DESC(s)           ((s)->sy_symbol.n_desc)
 180
 181 /* Modifiers */
 182 /* Assume that a symbol cannot be simultaneously in more than on segment */
 183 /* set segment */
 184 #define S_SET_SEGMENT(s,seg)    ((s)->sy_symbol.n_type &= ~N_TYPE,(s)->sy_symbol.n_type|=SEGMENT_TO_SYMBOL_TYPE(seg))
 185 /* The symbol is external */
 186 #define S_SET_EXTERNAL(s)       ((s)->sy_symbol.n_type |= N_EXT)
 187 /* The symbol is not external */
 188 #define S_CLEAR_EXTERNAL(s)     ((s)->sy_symbol.n_type &= ~N_EXT)
 189 /* Set the name of the symbol */
 190 #define S_SET_NAME(s,v)         ((s)->sy_symbol.n_name = (v))
 191 /* Set the offset in the string table */
 192 #define S_SET_OFFSET(s,v)       ((s)->sy_name_offset = (v))
 193 /* Set the n_other expression value */
 194 #define S_SET_OTHER(s,v)        ((s)->sy_symbol.n_other = (v))
 195 /* Set the n_desc expression value */
 196 #define S_SET_DESC(s,v)         ((s)->sy_symbol.n_desc = (v))
 197 /* Set the n_type expression value */
 198 #define S_SET_TYPE(s,v)         ((s)->sy_symbol.n_type = (v))
 199
 200 /* File header macro and type definition */
 201
 202 #define H_GET_TEXT_SIZE(h)              ((h)->header.a_text)
 203 #define H_GET_DATA_SIZE(h)              ((h)->header.a_data)
 204 #define H_GET_BSS_SIZE(h)               ((h)->header.a_bss)
 205
 206 #define H_SET_TEXT_SIZE(h,v)            ((h)->header.a_text = md_section_align(SEG_TEXT, (v)))
 207 #define H_SET_DATA_SIZE(h,v)            ((h)->header.a_data = md_section_align(SEG_DATA, (v)))
 208 #define H_SET_BSS_SIZE(h,v)             ((h)->header.a_bss = md_section_align(SEG_BSS, (v)))
 209
 210 #define H_SET_STRING_SIZE(h,v)          ((h)->string_table_size = (v))
 211 #define H_SET_SYMBOL_TABLE_SIZE(h,v)    ((h)->header.a_syms = (v) * \
 212                                          sizeof (struct nlist))
 213
 214 /* line numbering stuff.  */
 215 #define OBJ_EMIT_LINENO(a, b, c)        {;}
 216
 217 #define obj_symbol_new_hook(s)  {;}
 218
 219 /* Force structure tags into scope so that their use in prototypes
 220    will never be their first occurrence.  */
 221 struct fix;
 222 struct frag;
 223
 224 /* obj-vms routines visible to the rest of gas.  */
 225
 226 extern void tc_aout_fix_to_chars PARAMS ((char *,struct fix *,relax_addressT));
 227
 228 extern int vms_resolve_symbol_redef PARAMS ((symbolS *));
 229 #define RESOLVE_SYMBOL_REDEFINITION(X)  vms_resolve_symbol_redef(X)
 230
 231 /* Compiler-generated label "__vax_g_doubles" is used to augment .stabs.  */
 232 extern void vms_check_for_special_label PARAMS ((symbolS *));
 233 #define obj_frob_label(X) vms_check_for_special_label(X)
 234
 235 extern void vms_check_for_main PARAMS ((void));
 236
 237 extern void vms_write_object_file PARAMS ((unsigned,unsigned,unsigned,
 238                                            struct frag *,struct frag *));
 239
 240 /* VMS executables are nothing like a.out, but the VMS port of gcc uses
 241    a.out format stabs which obj-vms.c then translates.  */
 242
 243 #define AOUT_STABS
 244
 245 \f
 246 #ifdef WANT_VMS_OBJ_DEFS
 247
 248 /* The rest of this file contains definitions for constants used within
 249    the actual VMS object file.  We do not use a $ in the symbols (as per
 250    usual VMS convention) since System V gags on it.  */
 251
 252 #define OBJ_S_C_HDR     0
 253 #define OBJ_S_C_HDR_MHD 0
 254 #define OBJ_S_C_HDR_LNM 1
 255 #define OBJ_S_C_HDR_SRC 2
 256 #define OBJ_S_C_HDR_TTL 3
 257 #define OBJ_S_C_HDR_CPR 4
 258 #define OBJ_S_C_HDR_MTC 5
 259 #define OBJ_S_C_HDR_GTX 6
 260 #define OBJ_S_C_GSD     1
 261 #define OBJ_S_C_GSD_PSC 0
 262 #define OBJ_S_C_GSD_SYM 1
 263 #define OBJ_S_C_GSD_EPM 2
 264 #define OBJ_S_C_GSD_PRO 3
 265 #define OBJ_S_C_GSD_SYMW        4
 266 #define OBJ_S_C_GSD_EPMW        5
 267 #define OBJ_S_C_GSD_PROW        6
 268 #define OBJ_S_C_GSD_IDC 7
 269 #define OBJ_S_C_GSD_ENV 8
 270 #define OBJ_S_C_GSD_LSY 9
 271 #define OBJ_S_C_GSD_LEPM        10
 272 #define OBJ_S_C_GSD_LPRO        11
 273 #define OBJ_S_C_GSD_SPSC        12
 274 #define OBJ_S_C_TIR     2
 275 #define OBJ_S_C_EOM     3
 276 #define OBJ_S_C_DBG     4
 277 #define OBJ_S_C_TBT     5
 278 #define OBJ_S_C_LNK     6
 279 #define OBJ_S_C_EOMW    7
 280 #define OBJ_S_C_MAXRECTYP       7
 281 #define OBJ_S_K_SUBTYP  1
 282 #define OBJ_S_C_SUBTYP  1
 283 #define OBJ_S_C_MAXRECSIZ       2048
 284 #define OBJ_S_C_STRLVL  0
 285 #define OBJ_S_C_SYMSIZ  31
 286 #define OBJ_S_C_STOREPLIM       -1
 287 #define OBJ_S_C_PSCALILIM       9
 288 \f
 289 #define MHD_S_C_MHD     0
 290 #define MHD_S_C_LNM     1
 291 #define MHD_S_C_SRC     2
 292 #define MHD_S_C_TTL     3
 293 #define MHD_S_C_CPR     4
 294 #define MHD_S_C_MTC     5
 295 #define MHD_S_C_GTX     6
 296 #define MHD_S_C_MAXHDRTYP       6
 297 \f
 298 #define GSD_S_K_ENTRIES 1
 299 #define GSD_S_C_ENTRIES 1
 300 #define GSD_S_C_PSC     0
 301 #define GSD_S_C_SYM     1
 302 #define GSD_S_C_EPM     2
 303 #define GSD_S_C_PRO     3
 304 #define GSD_S_C_SYMW    4
 305 #define GSD_S_C_EPMW    5
 306 #define GSD_S_C_PROW    6
 307 #define GSD_S_C_IDC     7
 308 #define GSD_S_C_ENV     8
 309 #define GSD_S_C_LSY     9
 310 #define GSD_S_C_LEPM    10
 311 #define GSD_S_C_LPRO    11
 312 #define GSD_S_C_SPSC    12
 313 #define GSD_S_C_SYMV    13
 314 #define GSD_S_C_EPMV    14
 315 #define GSD_S_C_PROV    15
 316 #define GSD_S_C_MAXRECTYP       15
 317 \f
 318 #define GSY_S_M_WEAK    1
 319 #define GSY_S_M_DEF     2
 320 #define GSY_S_M_UNI     4
 321 #define GSY_S_M_REL     8
 322
 323 #define LSY_S_M_DEF     2
 324 #define LSY_S_M_REL     8
 325
 326 #define ENV_S_M_DEF     1
 327 #define ENV_S_M_NESTED  2
 328 \f
 329 #define GPS_S_M_PIC     1
 330 #define GPS_S_M_LIB     2
 331 #define GPS_S_M_OVR     4
 332 #define GPS_S_M_REL     8
 333 #define GPS_S_M_GBL     16
 334 #define GPS_S_M_SHR     32
 335 #define GPS_S_M_EXE     64
 336 #define GPS_S_M_RD      128
 337 #define GPS_S_M_WRT     256
 338 #define GPS_S_M_VEC     512
 339 #define GPS_S_K_NAME    9
 340 #define GPS_S_C_NAME    9
 341 \f
 342 #define TIR_S_C_STA_GBL 0
 343 #define TIR_S_C_STA_SB  1
 344 #define TIR_S_C_STA_SW  2
 345 #define TIR_S_C_STA_LW  3
 346 #define TIR_S_C_STA_PB  4
 347 #define TIR_S_C_STA_PW  5
 348 #define TIR_S_C_STA_PL  6
 349 #define TIR_S_C_STA_UB  7
 350 #define TIR_S_C_STA_UW  8
 351 #define TIR_S_C_STA_BFI 9
 352 #define TIR_S_C_STA_WFI 10
 353 #define TIR_S_C_STA_LFI 11
 354 #define TIR_S_C_STA_EPM 12
 355 #define TIR_S_C_STA_CKARG       13
 356 #define TIR_S_C_STA_WPB 14
 357 #define TIR_S_C_STA_WPW 15
 358 #define TIR_S_C_STA_WPL 16
 359 #define TIR_S_C_STA_LSY 17
 360 #define TIR_S_C_STA_LIT 18
 361 #define TIR_S_C_STA_LEPM        19
 362 #define TIR_S_C_MAXSTACOD       19
 363 #define TIR_S_C_MINSTOCOD       20
 364 #define TIR_S_C_STO_SB  20
 365 #define TIR_S_C_STO_SW  21
 366 #define TIR_S_C_STO_L   22
 367 #define TIR_S_C_STO_BD  23
 368 #define TIR_S_C_STO_WD  24
 369 #define TIR_S_C_STO_LD  25
 370 #define TIR_S_C_STO_LI  26
 371 #define TIR_S_C_STO_PIDR        27
 372 #define TIR_S_C_STO_PICR        28
 373 #define TIR_S_C_STO_RSB 29
 374 #define TIR_S_C_STO_RSW 30
 375 #define TIR_S_C_STO_RL  31
 376 #define TIR_S_C_STO_VPS 32
 377 #define TIR_S_C_STO_USB 33
 378 #define TIR_S_C_STO_USW 34
 379 #define TIR_S_C_STO_RUB 35
 380 #define TIR_S_C_STO_RUW 36
 381 #define TIR_S_C_STO_B   37
 382 #define TIR_S_C_STO_W   38
 383 #define TIR_S_C_STO_RB  39
 384 #define TIR_S_C_STO_RW  40
 385 #define TIR_S_C_STO_RIVB        41
 386 #define TIR_S_C_STO_PIRR        42
 387 #define TIR_S_C_MAXSTOCOD       42
 388 #define TIR_S_C_MINOPRCOD       50
 389 #define TIR_S_C_OPR_NOP 50
 390 #define TIR_S_C_OPR_ADD 51
 391 #define TIR_S_C_OPR_SUB 52
 392 #define TIR_S_C_OPR_MUL 53
 393 #define TIR_S_C_OPR_DIV 54
 394 #define TIR_S_C_OPR_AND 55
 395 #define TIR_S_C_OPR_IOR 56
 396 #define TIR_S_C_OPR_EOR 57
 397 #define TIR_S_C_OPR_NEG 58
 398 #define TIR_S_C_OPR_COM 59
 399 #define TIR_S_C_OPR_INSV        60
 400 #define TIR_S_C_OPR_ASH 61
 401 #define TIR_S_C_OPR_USH 62
 402 #define TIR_S_C_OPR_ROT 63
 403 #define TIR_S_C_OPR_SEL 64
 404 #define TIR_S_C_OPR_REDEF       65
 405 #define TIR_S_C_OPR_DFLIT       66
 406 #define TIR_S_C_MAXOPRCOD       66
 407 #define TIR_S_C_MINCTLCOD       80
 408 #define TIR_S_C_CTL_SETRB       80
 409 #define TIR_S_C_CTL_AUGRB       81
 410 #define TIR_S_C_CTL_DFLOC       82
 411 #define TIR_S_C_CTL_STLOC       83
 412 #define TIR_S_C_CTL_STKDL       84
 413 #define TIR_S_C_MAXCTLCOD       84
 414 \f
 415 /*
 416  *      Debugger symbol definitions:  These are done by hand, as no
 417  *                                      machine-readable version seems
 418  *                                      to be available.
 419  */
 420 #define DST_S_C_C         7     /* Language == "C"      */
 421 #define DST_S_C_CXX      15     /* Language == "C++"    */
 422 #define DST_S_C_VERSION 153
 423 #define DST_S_C_SOURCE  155     /* Source file          */
 424 #define DST_S_C_PROLOG  162
 425 #define DST_S_C_BLKBEG  176     /* Beginning of block   */
 426 #define DST_S_C_BLKEND  177     /* End of block */
 427 #define DST_S_C_ENTRY   181
 428 #define DST_S_C_PSECT   184
 429 #define DST_S_C_LINE_NUM        185     /* Line Number          */
 430 #define DST_S_C_LBLORLIT        186
 431 #define DST_S_C_LABEL   187
 432 #define DST_S_C_MODBEG  188     /* Beginning of module  */
 433 #define DST_S_C_MODEND  189     /* End of module        */
 434 #define DST_S_C_RTNBEG  190     /* Beginning of routine */
 435 #define DST_S_C_RTNEND  191     /* End of routine       */
 436 #define DST_S_C_DELTA_PC_W      1       /* Incr PC      */
 437 #define DST_S_C_INCR_LINUM      2       /* Incr Line #  */
 438 #define DST_S_C_INCR_LINUM_W    3       /* Incr Line #  */
 439 #define DST_S_C_SET_LINUM_INCR  4
 440 #define DST_S_C_SET_LINUM_INCR_W        5
 441 #define DST_S_C_RESET_LINUM_INCR        6
 442 #define DST_S_C_BEG_STMT_MODE   7
 443 #define DST_S_C_END_STMT_MODE   8
 444 #define DST_S_C_SET_LINE_NUM    9       /* Set Line #   */
 445 #define DST_S_C_SET_PC          10
 446 #define DST_S_C_SET_PC_W                11
 447 #define DST_S_C_SET_PC_L                12
 448 #define DST_S_C_SET_STMTNUM     13
 449 #define DST_S_C_TERM            14      /* End of lines */
 450 #define DST_S_C_TERM_W          15      /* End of lines */
 451 #define DST_S_C_SET_ABS_PC      16      /* Set PC       */
 452 #define DST_S_C_DELTA_PC_L      17      /* Incr PC      */
 453 #define DST_S_C_INCR_LINUM_L    18      /* Incr Line #  */
 454 #define DST_S_C_SET_LINUM_B     19      /* Set Line #   */
 455 #define DST_S_C_SET_LINUM_L     20      /* Set Line #   */
 456 #define DST_S_C_TERM_L          21      /* End of lines */
 457 /* these are used with DST_S_C_SOURCE */
 458 #define DST_S_C_SRC_DECLFILE     1      /* Declare source file */
 459 #define DST_S_C_SRC_SETFILE      2      /* Set source file */
 460 #define DST_S_C_SRC_SETREC_L     3      /* Set record, longword value */
 461 #define DST_S_C_SRC_SETREC_W     4      /* Set record, word value */
 462 #define DST_S_C_SRC_DEFLINES_W  10      /* # of line, word counter */
 463 #define DST_S_C_SRC_DEFLINES_B  11      /* # of line, byte counter */
 464 #define DST_S_C_SRC_FORMFEED    16      /* ^L counts as a record */
 465 /* the following are the codes for the various data types.  Anything not on
 466  * the list is included under 'advanced_type'
 467  */
 468 #define DBG_S_C_UCHAR           0x02
 469 #define DBG_S_C_USINT           0x03
 470 #define DBG_S_C_ULINT           0x04
 471 #define DBG_S_C_UQUAD           0x05
 472 #define DBG_S_C_SCHAR           0x06
 473 #define DBG_S_C_SSINT           0x07
 474 #define DBG_S_C_SLINT           0x08
 475 #define DBG_S_C_SQUAD           0x09
 476 #define DBG_S_C_REAL4           0x0a
 477 #define DBG_S_C_REAL8           0x0b            /* D_float double */
 478 #define DBG_S_C_COMPLX4         0x0c            /* 2xF_float complex float */
 479 #define DBG_S_C_COMPLX8         0x0d            /* 2xD_float complex double */
 480 #define DBG_S_C_REAL8_G         0x1b            /* G_float double */
 481 #define DBG_S_C_COMPLX8_G       0x1d            /* 2xG_float complex double */
 482 #define DBG_S_C_FUNCTION_ADDR   0x17
 483 #define DBG_S_C_ADVANCED_TYPE   0xa3
 484 /*  Some of these are just for future reference.  [pr]
 485  */
 486 #define DBG_S_C_UBITA           0x01    /* unsigned, aligned bit field */
 487 #define DBG_S_C_UBITU           0x22    /* unsigned, unaligned bit field */
 488 #define DBG_S_C_SBITA           0x29    /* signed, aligned bit field */
 489 #define DBG_S_C_SBITU           0x2a    /* signed, unaligned bit field */
 490 #define DBG_S_C_CSTRING         0x2e    /* asciz ('\0' terminated) string */
 491 #define DBG_S_C_WCHAR           0x38    /* wchar_t */
 492 /*  These are descriptor class codes.
 493  */
 494 #define DSC_K_CLASS_S           0x01    /* static (fixed length) */
 495 #define DSC_K_CLASS_D           0x02    /* dynamic string (not via malloc!) */
 496 #define DSC_K_CLASS_A           0x04    /* array */
 497 #define DSC_K_CLASS_UBS         0x0d    /* unaligned bit string */
 498 /*  These are the codes that are used to generate the definitions of struct
 499  *  union and enum records
 500  */
 501 #define DBG_S_C_ENUM_ITEM               0xa4
 502 #define DBG_S_C_ENUM_START              0xa5
 503 #define DBG_S_C_ENUM_END                0xa6
 504 #define DBG_S_C_STRUCT_ITEM             DST_K_VFLAGS_BITOFFS    /* 0xff */
 505 #define DBG_S_C_STRUCT_START            0xab
 506 #define DBG_S_C_STRUCT_END              0xac
 507 #define DST_K_TYPSPEC                   0xaf            /* type specification */
 508 /* These codes are used in the generation of the symbol definition records
 509  */
 510 #define DST_K_VFLAGS_NOVAL              0x80    /* struct definition only */
 511 #define DST_K_VFLAGS_DSC                0xfa    /* descriptor used */
 512 #define DST_K_VFLAGS_TVS                0xfb    /* trailing value specified */
 513 #define DST_K_VS_FOLLOWS                0xfd    /* value spec follows */
 514 #define DST_K_VFLAGS_BITOFFS            0xff    /* value contains bit offset */
 515 #define DST_K_VALKIND_LITERAL   0
 516 #define DST_K_VALKIND_ADDR      1
 517 #define DST_K_VALKIND_DESC      2
 518 #define DST_K_VALKIND_REG       3
 519 #define DST_K_REG_VAX_AP        0x0c    /* R12 */
 520 #define DST_K_REG_VAX_FP        0x0d    /* R13 */
 521 #define DST_K_REG_VAX_SP        0x0e    /* R14 */
 522 #define DST_V_VALKIND           0       /* offset of valkind field */
 523 #define DST_V_INDIRECT          2       /* offset to indirect bit */
 524 #define DST_V_DISP              3       /* offset to displacement bit */
 525 #define DST_V_REGNUM            4       /* offset to register number */
 526 #define DST_M_INDIRECT          (1<<DST_V_INDIRECT)
 527 #define DST_M_DISP              (1<<DST_V_DISP)
 528 #define DBG_C_FUNCTION_PARAM    /* 0xc9 */      \
 529         (DST_K_VALKIND_ADDR|DST_M_DISP|(DST_K_REG_VAX_AP<<DST_V_REGNUM))
 530 #define DBG_C_LOCAL_SYM         /* 0xd9 */      \
 531         (DST_K_VALKIND_ADDR|DST_M_DISP|(DST_K_REG_VAX_FP<<DST_V_REGNUM))
 532 /* Kinds of value specifications
 533  */
 534 #define DST_K_VS_ALLOC_SPLIT    3       /* split lifetime */
 535 /* Kinds of type specifications
 536  */
 537 #define DST_K_TS_ATOM           0x01    /* atomic type specification */
 538 #define DST_K_TS_DSC            0x02    /* descriptor type spec */
 539 #define DST_K_TS_IND            0x03    /* indirect type specification */
 540 #define DST_K_TS_TPTR           0x04    /* typed pointer type spec */
 541 #define DST_K_TS_PTR            0x05    /* pointer type spec */
 542 #define DST_K_TS_ARRAY          0x07    /* array type spec */
 543 #define DST_K_TS_NOV_LENG       0x0e    /* novel length type spec */
 544 /*  These are the codes that are used in the suffix records to determine the
 545  *  actual data type
 546  */
 547 #define DBG_S_C_BASIC                   DST_K_TS_ATOM
 548 #define DBG_S_C_BASIC_ARRAY             DST_K_TS_DSC
 549 #define DBG_S_C_STRUCT                  DST_K_TS_IND
 550 #define DBG_S_C_POINTER                 DST_K_TS_TPTR
 551 #define DBG_S_C_VOID                    DST_K_TS_PTR
 552 #define DBG_S_C_COMPLEX_ARRAY           DST_K_TS_ARRAY
 553
 554 #endif  /* WANT_VMS_OBJ_DEFS */