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 244 245 246 #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 9 288 289 #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 6 297 298 #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 15 317 318 #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 2 328 329 #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 9 341 342 #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 84 414 415 /* 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 */ 555