1 /* stabs.c -- Parse stabs debugging information 2 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 3 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. 4 Written by Ian Lance Taylor <ian@cygnus.com>. 5 6 This file is part of GNU Binutils. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 21 02110-1301, USA. */ 22 23 /* This file contains code which parses stabs debugging information. 24 The organization of this code is based on the gdb stabs reading 25 code. The job it does is somewhat different, because it is not 26 trying to identify the correct address for anything. */ 27 28 #include "sysdep.h" 29 #include "bfd.h" 30 #include "libiberty.h" 31 #include "safe-ctype.h" 32 #include "demangle.h" 33 #include "debug.h" 34 #include "budbg.h" 35 #include "filenames.h" 36 #include "aout/aout64.h" 37 #include "aout/stab_gnu.h" 38 39 /* The number of predefined XCOFF types. */ 40 41 #define XCOFF_TYPE_COUNT 34 42 43 /* This structure is used as a handle so that the stab parsing doesn't 44 need to use any static variables. */ 45 46 struct stab_handle 47 { 48 /* The BFD. */ 49 bfd *abfd; 50 /* TRUE if this is stabs in sections. */ 51 bfd_boolean sections; 52 /* The symbol table. */ 53 asymbol **syms; 54 /* The number of symbols. */ 55 long symcount; 56 /* The accumulated file name string. */ 57 char *so_string; 58 /* The value of the last N_SO symbol. */ 59 bfd_vma so_value; 60 /* The value of the start of the file, so that we can handle file 61 relative N_LBRAC and N_RBRAC symbols. */ 62 bfd_vma file_start_offset; 63 /* The offset of the start of the function, so that we can handle 64 function relative N_LBRAC and N_RBRAC symbols. */ 65 bfd_vma function_start_offset; 66 /* The version number of gcc which compiled the current compilation 67 unit, 0 if not compiled by gcc. */ 68 int gcc_compiled; 69 /* Whether an N_OPT symbol was seen that was not generated by gcc, 70 so that we can detect the SunPRO compiler. */ 71 bfd_boolean n_opt_found; 72 /* The main file name. */ 73 char *main_filename; 74 /* A stack of unfinished N_BINCL files. */ 75 struct bincl_file *bincl_stack; 76 /* A list of finished N_BINCL files. */ 77 struct bincl_file *bincl_list; 78 /* Whether we are inside a function or not. */ 79 bfd_boolean within_function; 80 /* The address of the end of the function, used if we have seen an 81 N_FUN symbol while in a function. This is -1 if we have not seen 82 an N_FUN (the normal case). */ 83 bfd_vma function_end; 84 /* The depth of block nesting. */ 85 int block_depth; 86 /* List of pending variable definitions. */ 87 struct stab_pending_var *pending; 88 /* Number of files for which we have types. */ 89 unsigned int files; 90 /* Lists of types per file. */ 91 struct stab_types **file_types; 92 /* Predefined XCOFF types. */ 93 debug_type xcoff_types[XCOFF_TYPE_COUNT]; 94 /* Undefined tags. */ 95 struct stab_tag *tags; 96 /* Set by parse_stab_type if it sees a structure defined as a cross 97 reference to itself. Reset by parse_stab_type otherwise. */ 98 bfd_boolean self_crossref; 99 }; 100 101 /* A list of these structures is used to hold pending variable 102 definitions seen before the N_LBRAC of a block. */ 103 104 struct stab_pending_var 105 { 106 /* Next pending variable definition. */ 107 struct stab_pending_var *next; 108 /* Name. */ 109 const char *name; 110 /* Type. */ 111 debug_type type; 112 /* Kind. */ 113 enum debug_var_kind kind; 114 /* Value. */ 115 bfd_vma val; 116 }; 117 118 /* A list of these structures is used to hold the types for a single 119 file. */ 120 121 struct stab_types 122 { 123 /* Next set of slots for this file. */ 124 struct stab_types *next; 125 /* Types indexed by type number. */ 126 #define STAB_TYPES_SLOTS (16) 127 debug_type types[STAB_TYPES_SLOTS]; 128 }; 129 130 /* We keep a list of undefined tags that we encounter, so that we can 131 fill them in if the tag is later defined. */ 132 133 struct stab_tag 134 { 135 /* Next undefined tag. */ 136 struct stab_tag *next; 137 /* Tag name. */ 138 const char *name; 139 /* Type kind. */ 140 enum debug_type_kind kind; 141 /* Slot to hold real type when we discover it. If we don't, we fill 142 in an undefined tag type. */ 143 debug_type slot; 144 /* Indirect type we have created to point at slot. */ 145 debug_type type; 146 }; 147 148 static char *savestring (const char *, int); 149 static bfd_vma parse_number (const char **, bfd_boolean *); 150 static void bad_stab (const char *); 151 static void warn_stab (const char *, const char *); 152 static bfd_boolean parse_stab_string 153 (void *, struct stab_handle *, int, int, bfd_vma, const char *); 154 static debug_type parse_stab_type 155 (void *, struct stab_handle *, const char *, const char **, debug_type **); 156 static bfd_boolean parse_stab_type_number (const char **, int *); 157 static debug_type parse_stab_range_type 158 (void *, struct stab_handle *, const char *, const char **, const int *); 159 static debug_type parse_stab_sun_builtin_type (void *, const char **); 160 static debug_type parse_stab_sun_floating_type (void *, const char **); 161 static debug_type parse_stab_enum_type (void *, const char **); 162 static debug_type parse_stab_struct_type 163 (void *, struct stab_handle *, const char *, const char **, 164 bfd_boolean, const int *); 165 static bfd_boolean parse_stab_baseclasses 166 (void *, struct stab_handle *, const char **, debug_baseclass **); 167 static bfd_boolean parse_stab_struct_fields 168 (void *, struct stab_handle *, const char **, debug_field **, bfd_boolean *); 169 static bfd_boolean parse_stab_cpp_abbrev 170 (void *, struct stab_handle *, const char **, debug_field *); 171 static bfd_boolean parse_stab_one_struct_field 172 (void *, struct stab_handle *, const char **, const char *, 173 debug_field *, bfd_boolean *); 174 static bfd_boolean parse_stab_members 175 (void *, struct stab_handle *, const char *, const char **, const int *, 176 debug_method **); 177 static debug_type parse_stab_argtypes 178 (void *, struct stab_handle *, debug_type, const char *, const char *, 179 debug_type, const char *, bfd_boolean, bfd_boolean, const char **); 180 static bfd_boolean parse_stab_tilde_field 181 (void *, struct stab_handle *, const char **, const int *, debug_type *, 182 bfd_boolean *); 183 static debug_type parse_stab_array_type 184 (void *, struct stab_handle *, const char **, bfd_boolean); 185 static void push_bincl (struct stab_handle *, const char *, bfd_vma); 186 static const char *pop_bincl (struct stab_handle *); 187 static bfd_boolean find_excl (struct stab_handle *, const char *, bfd_vma); 188 static bfd_boolean stab_record_variable 189 (void *, struct stab_handle *, const char *, debug_type, 190 enum debug_var_kind, bfd_vma); 191 static bfd_boolean stab_emit_pending_vars (void *, struct stab_handle *); 192 static debug_type *stab_find_slot (struct stab_handle *, const int *); 193 static debug_type stab_find_type (void *, struct stab_handle *, const int *); 194 static bfd_boolean stab_record_type 195 (void *, struct stab_handle *, const int *, debug_type); 196 static debug_type stab_xcoff_builtin_type 197 (void *, struct stab_handle *, int); 198 static debug_type stab_find_tagged_type 199 (void *, struct stab_handle *, const char *, int, enum debug_type_kind); 200 static debug_type *stab_demangle_argtypes 201 (void *, struct stab_handle *, const char *, bfd_boolean *, unsigned int); 202 static debug_type *stab_demangle_v3_argtypes 203 (void *, struct stab_handle *, const char *, bfd_boolean *); 204 static debug_type *stab_demangle_v3_arglist 205 (void *, struct stab_handle *, struct demangle_component *, bfd_boolean *); 206 static debug_type stab_demangle_v3_arg 207 (void *, struct stab_handle *, struct demangle_component *, debug_type, 208 bfd_boolean *); 209 210 /* Save a string in memory. */ 211 212 static char * 213 savestring (const char *start, int len) 214 { 215 char *ret; 216 217 ret = (char *) xmalloc (len + 1); 218 memcpy (ret, start, len); 219 ret[len] = '\0'; 220 return ret; 221 } 222 223 /* Read a number from a string. */ 224 225 static bfd_vma 226 parse_number (const char **pp, bfd_boolean *poverflow) 227 { 228 unsigned long ul; 229 const char *orig; 230 231 if (poverflow != NULL) 232 *poverflow = FALSE; 233 234 orig = *pp; 235 236 errno = 0; 237 ul = strtoul (*pp, (char **) pp, 0); 238 if (ul + 1 != 0 || errno == 0) 239 { 240 /* If bfd_vma is larger than unsigned long, and the number is 241 meant to be negative, we have to make sure that we sign 242 extend properly. */ 243 if (*orig == '-') 244 return (bfd_vma) (bfd_signed_vma) (long) ul; 245 return (bfd_vma) ul; 246 } 247 248 /* Note that even though strtoul overflowed, it should have set *pp 249 to the end of the number, which is where we want it. */ 250 if (sizeof (bfd_vma) > sizeof (unsigned long)) 251 { 252 const char *p; 253 bfd_boolean neg; 254 int base; 255 bfd_vma over, lastdig; 256 bfd_boolean overflow; 257 bfd_vma v; 258 259 /* Our own version of strtoul, for a bfd_vma. */ 260 p = orig; 261 262 neg = FALSE; 263 if (*p == '+') 264 ++p; 265 else if (*p == '-') 266 { 267 neg = TRUE; 268 ++p; 269 } 270 271 base = 10; 272 if (*p == '0') 273 { 274 if (p[1] == 'x' || p[1] == 'X') 275 { 276 base = 16; 277 p += 2; 278 } 279 else 280 { 281 base = 8; 282 ++p; 283 } 284 } 285 286 over = ((bfd_vma) (bfd_signed_vma) -1) / (bfd_vma) base; 287 lastdig = ((bfd_vma) (bfd_signed_vma) -1) % (bfd_vma) base; 288 289 overflow = FALSE; 290 v = 0; 291 while (1) 292 { 293 int d; 294 295 d = *p++; 296 if (ISDIGIT (d)) 297 d -= '0'; 298 else if (ISUPPER (d)) 299 d -= 'A'; 300 else if (ISLOWER (d)) 301 d -= 'a'; 302 else 303 break; 304 305 if (d >= base) 306 break; 307 308 if (v > over || (v == over && (bfd_vma) d > lastdig)) 309 { 310 overflow = TRUE; 311 break; 312 } 313 } 314 315 if (! overflow) 316 { 317 if (neg) 318 v = - v; 319 return v; 320 } 321 } 322 323 /* If we get here, the number is too large to represent in a 324 bfd_vma. */ 325 if (poverflow != NULL) 326 *poverflow = TRUE; 327 else 328 warn_stab (orig, _("numeric overflow")); 329 330 return 0; 331 } 332 333 /* Give an error for a bad stab string. */ 334 335 static void 336 bad_stab (const char *p) 337 { 338 fprintf (stderr, _("Bad stab: %s\n"), p); 339 } 340 341 /* Warn about something in a stab string. */ 342 343 static void 344 warn_stab (const char *p, const char *err) 345 { 346 fprintf (stderr, _("Warning: %s: %s\n"), err, p); 347 } 348 349 /* Create a handle to parse stabs symbols with. */ 350 351 void * 352 start_stab (void *dhandle ATTRIBUTE_UNUSED, bfd *abfd, bfd_boolean sections, 353 asymbol **syms, long symcount) 354 { 355 struct stab_handle *ret; 356 357 ret = (struct stab_handle *) xmalloc (sizeof *ret); 358 memset (ret, 0, sizeof *ret); 359 ret->abfd = abfd; 360 ret->sections = sections; 361 ret->syms = syms; 362 ret->symcount = symcount; 363 ret->files = 1; 364 ret->file_types = (struct stab_types **) xmalloc (sizeof *ret->file_types); 365 ret->file_types[0] = NULL; 366 ret->function_end = (bfd_vma) -1; 367 return (void *) ret; 368 } 369 370 /* When we have processed all the stabs information, we need to go 371 through and fill in all the undefined tags. */ 372 373 bfd_boolean 374 finish_stab (void *dhandle, void *handle) 375 { 376 struct stab_handle *info = (struct stab_handle *) handle; 377 struct stab_tag *st; 378 379 if (info->within_function) 380 { 381 if (! stab_emit_pending_vars (dhandle, info) 382 || ! debug_end_function (dhandle, info->function_end)) 383 return FALSE; 384 info->within_function = FALSE; 385 info->function_end = (bfd_vma) -1; 386 } 387 388 for (st = info->tags; st != NULL; st = st->next) 389 { 390 enum debug_type_kind kind; 391 392 kind = st->kind; 393 if (kind == DEBUG_KIND_ILLEGAL) 394 kind = DEBUG_KIND_STRUCT; 395 st->slot = debug_make_undefined_tagged_type (dhandle, st->name, kind); 396 if (st->slot == DEBUG_TYPE_NULL) 397 return FALSE; 398 } 399 400 return TRUE; 401 } 402 403 /* Handle a single stabs symbol. */ 404 405 bfd_boolean 406 parse_stab (void *dhandle, void *handle, int type, int desc, bfd_vma value, 407 const char *string) 408 { 409 struct stab_handle *info = (struct stab_handle *) handle; 410 411 /* gcc will emit two N_SO strings per compilation unit, one for the 412 directory name and one for the file name. We just collect N_SO 413 strings as we see them, and start the new compilation unit when 414 we see a non N_SO symbol. */ 415 if (info->so_string != NULL 416 && (type != N_SO || *string == '\0' || value != info->so_value)) 417 { 418 if (! debug_set_filename (dhandle, info->so_string)) 419 return FALSE; 420 info->main_filename = info->so_string; 421 422 info->gcc_compiled = 0; 423 info->n_opt_found = FALSE; 424 425 /* Generally, for stabs in the symbol table, the N_LBRAC and 426 N_RBRAC symbols are relative to the N_SO symbol value. */ 427 if (! info->sections) 428 info->file_start_offset = info->so_value; 429 430 /* We need to reset the mapping from type numbers to types. We 431 can't free the old mapping, because of the use of 432 debug_make_indirect_type. */ 433 info->files = 1; 434 info->file_types = ((struct stab_types **) 435 xmalloc (sizeof *info->file_types)); 436 info->file_types[0] = NULL; 437 438 info->so_string = NULL; 439 440 /* Now process whatever type we just got. */ 441 } 442 443 switch (type) 444 { 445 case N_FN: 446 case N_FN_SEQ: 447 break; 448 449 case N_LBRAC: 450 /* Ignore extra outermost context from SunPRO cc and acc. */ 451 if (info->n_opt_found && desc == 1) 452 break; 453 454 if (! info->within_function) 455 { 456 fprintf (stderr, _("N_LBRAC not within function\n")); 457 return FALSE; 458 } 459 460 /* Start an inner lexical block. */ 461 if (! debug_start_block (dhandle, 462 (value 463 + info->file_start_offset 464 + info->function_start_offset))) 465 return FALSE; 466 467 /* Emit any pending variable definitions. */ 468 if (! stab_emit_pending_vars (dhandle, info)) 469 return FALSE; 470 471 ++info->block_depth; 472 break; 473 474 case N_RBRAC: 475 /* Ignore extra outermost context from SunPRO cc and acc. */ 476 if (info->n_opt_found && desc == 1) 477 break; 478 479 /* We shouldn't have any pending variable definitions here, but, 480 if we do, we probably need to emit them before closing the 481 block. */ 482 if (! stab_emit_pending_vars (dhandle, info)) 483 return FALSE; 484 485 /* End an inner lexical block. */ 486 if (! debug_end_block (dhandle, 487 (value 488 + info->file_start_offset 489 + info->function_start_offset))) 490 return FALSE; 491 492 --info->block_depth; 493 if (info->block_depth < 0) 494 { 495 fprintf (stderr, _("Too many N_RBRACs\n")); 496 return FALSE; 497 } 498 break; 499 500 case N_SO: 501 /* This always ends a function. */ 502 if (info->within_function) 503 { 504 bfd_vma endval; 505 506 endval = value; 507 if (*string != '\0' 508 && info->function_end != (bfd_vma) -1 509 && info->function_end < endval) 510 endval = info->function_end; 511 if (! stab_emit_pending_vars (dhandle, info) 512 || ! debug_end_function (dhandle, endval)) 513 return FALSE; 514 info->within_function = FALSE; 515 info->function_end = (bfd_vma) -1; 516 } 517 518 /* An empty string is emitted by gcc at the end of a compilation 519 unit. */ 520 if (*string == '\0') 521 return TRUE; 522 523 /* Just accumulate strings until we see a non N_SO symbol. If 524 the string starts with a directory separator or some other 525 form of absolute path specification, we discard the previously 526 accumulated strings. */ 527 if (info->so_string == NULL) 528 info->so_string = xstrdup (string); 529 else 530 { 531 char *f; 532 533 f = info->so_string; 534 535 if (IS_ABSOLUTE_PATH (string)) 536 info->so_string = xstrdup (string); 537 else 538 info->so_string = concat (info->so_string, string, 539 (const char *) NULL); 540 free (f); 541 } 542 543 info->so_value = value; 544 545 break; 546 547 case N_SOL: 548 /* Start an include file. */ 549 if (! debug_start_source (dhandle, string)) 550 return FALSE; 551 break; 552 553 case N_BINCL: 554 /* Start an include file which may be replaced. */ 555 push_bincl (info, string, value); 556 if (! debug_start_source (dhandle, string)) 557 return FALSE; 558 break; 559 560 case N_EINCL: 561 /* End an N_BINCL include. */ 562 if (! debug_start_source (dhandle, pop_bincl (info))) 563 return FALSE; 564 break; 565 566 case N_EXCL: 567 /* This is a duplicate of a header file named by N_BINCL which 568 was eliminated by the linker. */ 569 if (! find_excl (info, string, value)) 570 return FALSE; 571 break; 572 573 case N_SLINE: 574 if (! debug_record_line (dhandle, desc, 575 value + (info->within_function 576 ? info->function_start_offset : 0))) 577 return FALSE; 578 break; 579 580 case N_BCOMM: 581 if (! debug_start_common_block (dhandle, string)) 582 return FALSE; 583 break; 584 585 case N_ECOMM: 586 if (! debug_end_common_block (dhandle, string)) 587 return FALSE; 588 break; 589 590 case N_FUN: 591 if (*string == '\0') 592 { 593 if (info->within_function) 594 { 595 /* This always marks the end of a function; we don't 596 need to worry about info->function_end. */ 597 if (info->sections) 598 value += info->function_start_offset; 599 if (! stab_emit_pending_vars (dhandle, info) 600 || ! debug_end_function (dhandle, value)) 601 return FALSE; 602 info->within_function = FALSE; 603 info->function_end = (bfd_vma) -1; 604 } 605 break; 606 } 607 608 /* A const static symbol in the .text section will have an N_FUN 609 entry. We need to use these to mark the end of the function, 610 in case we are looking at gcc output before it was changed to 611 always emit an empty N_FUN. We can't call debug_end_function 612 here, because it might be a local static symbol. */ 613 if (info->within_function 614 && (info->function_end == (bfd_vma) -1 615 || value < info->function_end)) 616 info->function_end = value; 617 618 /* Fall through. */ 619 /* FIXME: gdb checks the string for N_STSYM, N_LCSYM or N_ROSYM 620 symbols, and if it does not start with :S, gdb relocates the 621 value to the start of the section. gcc always seems to use 622 :S, so we don't worry about this. */ 623 /* Fall through. */ 624 default: 625 { 626 const char *colon; 627 628 colon = strchr (string, ':'); 629 if (colon != NULL 630 && (colon[1] == 'f' || colon[1] == 'F')) 631 { 632 if (info->within_function) 633 { 634 bfd_vma endval; 635 636 endval = value; 637 if (info->function_end != (bfd_vma) -1 638 && info->function_end < endval) 639 endval = info->function_end; 640 if (! stab_emit_pending_vars (dhandle, info) 641 || ! debug_end_function (dhandle, endval)) 642 return FALSE; 643 info->function_end = (bfd_vma) -1; 644 } 645 /* For stabs in sections, line numbers and block addresses 646 are offsets from the start of the function. */ 647 if (info->sections) 648 info->function_start_offset = value; 649 info->within_function = TRUE; 650 } 651 652 if (! parse_stab_string (dhandle, info, type, desc, value, string)) 653 return FALSE; 654 } 655 break; 656 657 case N_OPT: 658 if (string != NULL && strcmp (string, "gcc2_compiled.") == 0) 659 info->gcc_compiled = 2; 660 else if (string != NULL && strcmp (string, "gcc_compiled.") == 0) 661 info->gcc_compiled = 1; 662 else 663 info->n_opt_found = TRUE; 664 break; 665 666 case N_OBJ: 667 case N_ENDM: 668 case N_MAIN: 669 case N_WARNING: 670 break; 671 } 672 673 return TRUE; 674 } 675 676 /* Parse the stabs string. */ 677 678 static bfd_boolean 679 parse_stab_string (void *dhandle, struct stab_handle *info, int stabtype, 680 int desc ATTRIBUTE_UNUSED, bfd_vma value, const char *string) 681 { 682 const char *p; 683 char *name; 684 int type; 685 debug_type dtype; 686 bfd_boolean synonym; 687 bfd_boolean self_crossref; 688 debug_type *slot; 689 690 p = strchr (string, ':'); 691 if (p == NULL) 692 return TRUE; 693 694 while (p[1] == ':') 695 { 696 p += 2; 697 p = strchr (p, ':'); 698 if (p == NULL) 699 { 700 bad_stab (string); 701 return FALSE; 702 } 703 } 704 705 /* FIXME: Sometimes the special C++ names start with '.'. */ 706 name = NULL; 707 if (string[0] == '$') 708 { 709 switch (string[1]) 710 { 711 case 't': 712 name = "this"; 713 break; 714 case 'v': 715 /* Was: name = "vptr"; */ 716 break; 717 case 'e': 718 name = "eh_throw"; 719 break; 720 case '_': 721 /* This was an anonymous type that was never fixed up. */ 722 break; 723 case 'X': 724 /* SunPRO (3.0 at least) static variable encoding. */ 725 break; 726 default: 727 warn_stab (string, _("unknown C++ encoded name")); 728 break; 729 } 730 } 731 732 if (name == NULL) 733 { 734 if (p == string || (string[0] == ' ' && p == string + 1)) 735 name = NULL; 736 else 737 name = savestring (string, p - string); 738 } 739 740 ++p; 741 if (ISDIGIT (*p) || *p == '(' || *p == '-') 742 type = 'l'; 743 else 744 type = *p++; 745 746 switch (type) 747 { 748 case 'c': 749 /* c is a special case, not followed by a type-number. 750 SYMBOL:c=iVALUE for an integer constant symbol. 751 SYMBOL:c=rVALUE for a floating constant symbol. 752 SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. 753 e.g. "b:c=e6,0" for "const b = blob1" 754 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ 755 if (*p != '=') 756 { 757 bad_stab (string); 758 return FALSE; 759 } 760 ++p; 761 switch (*p++) 762 { 763 case 'r': 764 /* Floating point constant. */ 765 if (! debug_record_float_const (dhandle, name, atof (p))) 766 return FALSE; 767 break; 768 case 'i': 769 /* Integer constant. */ 770 /* Defining integer constants this way is kind of silly, 771 since 'e' constants allows the compiler to give not only 772 the value, but the type as well. C has at least int, 773 long, unsigned int, and long long as constant types; 774 other languages probably should have at least unsigned as 775 well as signed constants. */ 776 if (! debug_record_int_const (dhandle, name, atoi (p))) 777 return FALSE; 778 break; 779 case 'e': 780 /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value 781 can be represented as integral. 782 e.g. "b:c=e6,0" for "const b = blob1" 783 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ 784 dtype = parse_stab_type (dhandle, info, (const char *) NULL, 785 &p, (debug_type **) NULL); 786 if (dtype == DEBUG_TYPE_NULL) 787 return FALSE; 788 if (*p != ',') 789 { 790 bad_stab (string); 791 return FALSE; 792 } 793 if (! debug_record_typed_const (dhandle, name, dtype, atoi (p))) 794 return FALSE; 795 break; 796 default: 797 bad_stab (string); 798 return FALSE; 799 } 800 801 break; 802 803 case 'C': 804 /* The name of a caught exception. */ 805 dtype = parse_stab_type (dhandle, info, (const char *) NULL, 806 &p, (debug_type **) NULL); 807 if (dtype == DEBUG_TYPE_NULL) 808 return FALSE; 809 if (! debug_record_label (dhandle, name, dtype, value)) 810 return FALSE; 811 break; 812 813 case 'f': 814 case 'F': 815 /* A function definition. */ 816 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 817 (debug_type **) NULL); 818 if (dtype == DEBUG_TYPE_NULL) 819 return FALSE; 820 if (! debug_record_function (dhandle, name, dtype, type == 'F', value)) 821 return FALSE; 822 823 /* Sun acc puts declared types of arguments here. We don't care 824 about their actual types (FIXME -- we should remember the whole 825 function prototype), but the list may define some new types 826 that we have to remember, so we must scan it now. */ 827 while (*p == ';') 828 { 829 ++p; 830 if (parse_stab_type (dhandle, info, (const char *) NULL, &p, 831 (debug_type **) NULL) 832 == DEBUG_TYPE_NULL) 833 return FALSE; 834 } 835 836 break; 837 838 case 'G': 839 { 840 char leading; 841 long c; 842 asymbol **ps; 843 844 /* A global symbol. The value must be extracted from the 845 symbol table. */ 846 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 847 (debug_type **) NULL); 848 if (dtype == DEBUG_TYPE_NULL) 849 return FALSE; 850 leading = bfd_get_symbol_leading_char (info->abfd); 851 for (c = info->symcount, ps = info->syms; c > 0; --c, ++ps) 852 { 853 const char *n; 854 855 n = bfd_asymbol_name (*ps); 856 if (leading != '\0' && *n == leading) 857 ++n; 858 if (*n == *name && strcmp (n, name) == 0) 859 break; 860 } 861 if (c > 0) 862 value = bfd_asymbol_value (*ps); 863 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_GLOBAL, 864 value)) 865 return FALSE; 866 } 867 break; 868 869 /* This case is faked by a conditional above, when there is no 870 code letter in the dbx data. Dbx data never actually 871 contains 'l'. */ 872 case 'l': 873 case 's': 874 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 875 (debug_type **) NULL); 876 if (dtype == DEBUG_TYPE_NULL) 877 return FALSE; 878 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, 879 value)) 880 return FALSE; 881 break; 882 883 case 'p': 884 /* A function parameter. */ 885 if (*p != 'F') 886 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 887 (debug_type **) NULL); 888 else 889 { 890 /* pF is a two-letter code that means a function parameter in 891 Fortran. The type-number specifies the type of the return 892 value. Translate it into a pointer-to-function type. */ 893 ++p; 894 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 895 (debug_type **) NULL); 896 if (dtype != DEBUG_TYPE_NULL) 897 { 898 debug_type ftype; 899 900 ftype = debug_make_function_type (dhandle, dtype, 901 (debug_type *) NULL, FALSE); 902 dtype = debug_make_pointer_type (dhandle, ftype); 903 } 904 } 905 if (dtype == DEBUG_TYPE_NULL) 906 return FALSE; 907 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_STACK, 908 value)) 909 return FALSE; 910 911 /* FIXME: At this point gdb considers rearranging the parameter 912 address on a big endian machine if it is smaller than an int. 913 We have no way to do that, since we don't really know much 914 about the target. */ 915 break; 916 917 case 'P': 918 if (stabtype == N_FUN) 919 { 920 /* Prototype of a function referenced by this file. */ 921 while (*p == ';') 922 { 923 ++p; 924 if (parse_stab_type (dhandle, info, (const char *) NULL, &p, 925 (debug_type **) NULL) 926 == DEBUG_TYPE_NULL) 927 return FALSE; 928 } 929 break; 930 } 931 /* Fall through. */ 932 case 'R': 933 /* Parameter which is in a register. */ 934 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 935 (debug_type **) NULL); 936 if (dtype == DEBUG_TYPE_NULL) 937 return FALSE; 938 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REG, 939 value)) 940 return FALSE; 941 break; 942 943 case 'r': 944 /* Register variable (either global or local). */ 945 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 946 (debug_type **) NULL); 947 if (dtype == DEBUG_TYPE_NULL) 948 return FALSE; 949 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_REGISTER, 950 value)) 951 return FALSE; 952 953 /* FIXME: At this point gdb checks to combine pairs of 'p' and 954 'r' stabs into a single 'P' stab. */ 955 break; 956 957 case 'S': 958 /* Static symbol at top level of file. */ 959 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 960 (debug_type **) NULL); 961 if (dtype == DEBUG_TYPE_NULL) 962 return FALSE; 963 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_STATIC, 964 value)) 965 return FALSE; 966 break; 967 968 case 't': 969 /* A typedef. */ 970 dtype = parse_stab_type (dhandle, info, name, &p, &slot); 971 if (dtype == DEBUG_TYPE_NULL) 972 return FALSE; 973 if (name == NULL) 974 { 975 /* A nameless type. Nothing to do. */ 976 return TRUE; 977 } 978 979 dtype = debug_name_type (dhandle, name, dtype); 980 if (dtype == DEBUG_TYPE_NULL) 981 return FALSE; 982 983 if (slot != NULL) 984 *slot = dtype; 985 986 break; 987 988 case 'T': 989 /* Struct, union, or enum tag. For GNU C++, this can be be followed 990 by 't' which means we are typedef'ing it as well. */ 991 if (*p != 't') 992 { 993 synonym = FALSE; 994 /* FIXME: gdb sets synonym to TRUE if the current language 995 is C++. */ 996 } 997 else 998 { 999 synonym = TRUE; 1000 ++p; 1001 } 1002 1003 dtype = parse_stab_type (dhandle, info, name, &p, &slot); 1004 if (dtype == DEBUG_TYPE_NULL) 1005 return FALSE; 1006 if (name == NULL) 1007 return TRUE; 1008 1009 /* INFO->SELF_CROSSREF is set by parse_stab_type if this type is 1010 a cross reference to itself. These are generated by some 1011 versions of g++. */ 1012 self_crossref = info->self_crossref; 1013 1014 dtype = debug_tag_type (dhandle, name, dtype); 1015 if (dtype == DEBUG_TYPE_NULL) 1016 return FALSE; 1017 if (slot != NULL) 1018 *slot = dtype; 1019 1020 /* See if we have a cross reference to this tag which we can now 1021 fill in. Avoid filling in a cross reference to ourselves, 1022 because that would lead to circular debugging information. */ 1023 if (! self_crossref) 1024 { 1025 register struct stab_tag **pst; 1026 1027 for (pst = &info->tags; *pst != NULL; pst = &(*pst)->next) 1028 { 1029 if ((*pst)->name[0] == name[0] 1030 && strcmp ((*pst)->name, name) == 0) 1031 { 1032 (*pst)->slot = dtype; 1033 *pst = (*pst)->next; 1034 break; 1035 } 1036 } 1037 } 1038 1039 if (synonym) 1040 { 1041 dtype = debug_name_type (dhandle, name, dtype); 1042 if (dtype == DEBUG_TYPE_NULL) 1043 return FALSE; 1044 1045 if (slot != NULL) 1046 *slot = dtype; 1047 } 1048 1049 break; 1050 1051 case 'V': 1052 /* Static symbol of local scope */ 1053 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 1054 (debug_type **) NULL); 1055 if (dtype == DEBUG_TYPE_NULL) 1056 return FALSE; 1057 /* FIXME: gdb checks os9k_stabs here. */ 1058 if (! stab_record_variable (dhandle, info, name, dtype, 1059 DEBUG_LOCAL_STATIC, value)) 1060 return FALSE; 1061 break; 1062 1063 case 'v': 1064 /* Reference parameter. */ 1065 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 1066 (debug_type **) NULL); 1067 if (dtype == DEBUG_TYPE_NULL) 1068 return FALSE; 1069 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REFERENCE, 1070 value)) 1071 return FALSE; 1072 break; 1073 1074 case 'a': 1075 /* Reference parameter which is in a register. */ 1076 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 1077 (debug_type **) NULL); 1078 if (dtype == DEBUG_TYPE_NULL) 1079 return FALSE; 1080 if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REF_REG, 1081 value)) 1082 return FALSE; 1083 break; 1084 1085 case 'X': 1086 /* This is used by Sun FORTRAN for "function result value". 1087 Sun claims ("dbx and dbxtool interfaces", 2nd ed) 1088 that Pascal uses it too, but when I tried it Pascal used 1089 "x:3" (local symbol) instead. */ 1090 dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, 1091 (debug_type **) NULL); 1092 if (dtype == DEBUG_TYPE_NULL) 1093 return FALSE; 1094 if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, 1095 value)) 1096 return FALSE; 1097 break; 1098 1099 case 'Y': 1100 /* SUNPro C++ Namespace =Yn0. */ 1101 /* Skip the namespace mapping, as it is not used now. */ 1102 if (*(++p) == 'n' && *(++p) == '0') 1103 { 1104 /* =Yn0name; */ 1105 while (*p != ';') 1106 ++p; 1107 ++p; 1108 return TRUE; 1109 } 1110 /* TODO SUNPro C++ support: 1111 Support default arguments after F,P parameters 1112 Ya = Anonymous unions 1113 YM,YD = Pointers to class members 1114 YT,YI = Templates 1115 YR = Run-time type information (RTTI) */ 1116 1117 /* Fall through. */ 1118 1119 default: 1120 bad_stab (string); 1121 return FALSE; 1122 } 1123 1124 /* FIXME: gdb converts structure values to structure pointers in a 1125 couple of cases, depending upon the target. */ 1126 1127 return TRUE; 1128 } 1129 1130 /* Parse a stabs type. The typename argument is non-NULL if this is a 1131 typedef or a tag definition. The pp argument points to the stab 1132 string, and is updated. The slotp argument points to a place to 1133 store the slot used if the type is being defined. */ 1134 1135 static debug_type 1136 parse_stab_type (void *dhandle, struct stab_handle *info, const char *type_name, const char **pp, debug_type **slotp) 1137 { 1138 const char *orig; 1139 int typenums[2]; 1140 int size; 1141 bfd_boolean stringp; 1142 int descriptor; 1143 debug_type dtype; 1144 1145 if (slotp != NULL) 1146 *slotp = NULL; 1147 1148 orig = *pp; 1149 1150 size = -1; 1151 stringp = FALSE; 1152 1153 info->self_crossref = FALSE; 1154 1155 /* Read type number if present. The type number may be omitted. 1156 for instance in a two-dimensional array declared with type 1157 "ar1;1;10;ar1;1;10;4". */ 1158 if (! ISDIGIT (**pp) && **pp != '(' && **pp != '-') 1159 { 1160 /* 'typenums=' not present, type is anonymous. Read and return 1161 the definition, but don't put it in the type vector. */ 1162 typenums[0] = typenums[1] = -1; 1163 } 1164 else 1165 { 1166 if (! parse_stab_type_number (pp, typenums)) 1167 return DEBUG_TYPE_NULL; 1168 1169 if (**pp != '=') 1170 /* Type is not being defined here. Either it already 1171 exists, or this is a forward reference to it. */ 1172 return stab_find_type (dhandle, info, typenums); 1173 1174 /* Only set the slot if the type is being defined. This means 1175 that the mapping from type numbers to types will only record 1176 the name of the typedef which defines a type. If we don't do 1177 this, then something like 1178 typedef int foo; 1179 int i; 1180 will record that i is of type foo. Unfortunately, stabs 1181 information is ambiguous about variable types. For this code, 1182 typedef int foo; 1183 int i; 1184 foo j; 1185 the stabs information records both i and j as having the same 1186 type. This could be fixed by patching the compiler. */ 1187 if (slotp != NULL && typenums[0] >= 0 && typenums[1] >= 0) 1188 *slotp = stab_find_slot (info, typenums); 1189 1190 /* Type is being defined here. */ 1191 /* Skip the '='. */ 1192 ++*pp; 1193 1194 while (**pp == '@') 1195 { 1196 const char *p = *pp + 1; 1197 const char *attr; 1198 1199 if (ISDIGIT (*p) || *p == '(' || *p == '-') 1200 /* Member type. */ 1201 break; 1202 1203 /* Type attributes. */ 1204 attr = p; 1205 1206 for (; *p != ';'; ++p) 1207 { 1208 if (*p == '\0') 1209 { 1210 bad_stab (orig); 1211 return DEBUG_TYPE_NULL; 1212 } 1213 } 1214 *pp = p + 1; 1215 1216 switch (*attr) 1217 { 1218 case 's': 1219 size = atoi (attr + 1); 1220 size /= 8; /* Size is in bits. We store it in bytes. */ 1221 if (size <= 0) 1222 size = -1; 1223 break; 1224 1225 case 'S': 1226 stringp = TRUE; 1227 break; 1228 1229 default: 1230 /* Ignore unrecognized type attributes, so future 1231 compilers can invent new ones. */ 1232 break; 1233 } 1234 } 1235 } 1236 1237 descriptor = **pp; 1238 ++*pp; 1239 1240 switch (descriptor) 1241 { 1242 case 'x': 1243 { 1244 enum debug_type_kind code; 1245 const char *q1, *q2, *p; 1246 1247 /* A cross reference to another type. */ 1248 switch (**pp) 1249 { 1250 case 's': 1251 code = DEBUG_KIND_STRUCT; 1252 break; 1253 case 'u': 1254 code = DEBUG_KIND_UNION; 1255 break; 1256 case 'e': 1257 code = DEBUG_KIND_ENUM; 1258 break; 1259 default: 1260 /* Complain and keep going, so compilers can invent new 1261 cross-reference types. */ 1262 warn_stab (orig, _("unrecognized cross reference type")); 1263 code = DEBUG_KIND_STRUCT; 1264 break; 1265 } 1266 ++*pp; 1267 1268 q1 = strchr (*pp, '<'); 1269 p = strchr (*pp, ':'); 1270 if (p == NULL) 1271 { 1272 bad_stab (orig); 1273 return DEBUG_TYPE_NULL; 1274 } 1275 if (q1 != NULL && p > q1 && p[1] == ':') 1276 { 1277 int nest = 0; 1278 1279 for (q2 = q1; *q2 != '\0'; ++q2) 1280 { 1281 if (*q2 == '<') 1282 ++nest; 1283 else if (*q2 == '>') 1284 --nest; 1285 else if (*q2 == ':' && nest == 0) 1286 break; 1287 } 1288 p = q2; 1289 if (*p != ':') 1290 { 1291 bad_stab (orig); 1292 return DEBUG_TYPE_NULL; 1293 } 1294 } 1295 1296 /* Some versions of g++ can emit stabs like 1297 fleep:T20=xsfleep: 1298 which define structures in terms of themselves. We need to 1299 tell the caller to avoid building a circular structure. */ 1300 if (type_name != NULL 1301 && strncmp (type_name, *pp, p - *pp) == 0 1302 && type_name[p - *pp] == '\0') 1303 info->self_crossref = TRUE; 1304 1305 dtype = stab_find_tagged_type (dhandle, info, *pp, p - *pp, code); 1306 1307 *pp = p + 1; 1308 } 1309 break; 1310 1311 case '-': 1312 case '0': 1313 case '1': 1314 case '2': 1315 case '3': 1316 case '4': 1317 case '5': 1318 case '6': 1319 case '7': 1320 case '8': 1321 case '9': 1322 case '(': 1323 { 1324 const char *hold; 1325 int xtypenums[2]; 1326 1327 /* This type is defined as another type. */ 1328 (*pp)--; 1329 hold = *pp; 1330 1331 /* Peek ahead at the number to detect void. */ 1332 if (! parse_stab_type_number (pp, xtypenums)) 1333 return DEBUG_TYPE_NULL; 1334 1335 if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1]) 1336 { 1337 /* This type is being defined as itself, which means that 1338 it is void. */ 1339 dtype = debug_make_void_type (dhandle); 1340 } 1341 else 1342 { 1343 *pp = hold; 1344 1345 /* Go back to the number and have parse_stab_type get it. 1346 This means that we can deal with something like 1347 t(1,2)=(3,4)=... which the Lucid compiler uses. */ 1348 dtype = parse_stab_type (dhandle, info, (const char *) NULL, 1349 pp, (debug_type **) NULL); 1350 if (dtype == DEBUG_TYPE_NULL) 1351 return DEBUG_TYPE_NULL; 1352 } 1353 1354 if (typenums[0] != -1) 1355 { 1356 if (! stab_record_type (dhandle, info, typenums, dtype)) 1357 return DEBUG_TYPE_NULL; 1358 } 1359 1360 break; 1361 } 1362 1363 case '*': 1364 dtype = debug_make_pointer_type (dhandle, 1365 parse_stab_type (dhandle, info, 1366 (const char *) NULL, 1367 pp, 1368 (debug_type **) NULL)); 1369 break; 1370 1371 case '&': 1372 /* Reference to another type. */ 1373 dtype = (debug_make_reference_type 1374 (dhandle, 1375 parse_stab_type (dhandle, info, (const char *) NULL, pp, 1376 (debug_type **) NULL))); 1377 break; 1378 1379 case 'f': 1380 /* Function returning another type. */ 1381 /* FIXME: gdb checks os9k_stabs here. */ 1382 dtype = (debug_make_function_type 1383 (dhandle, 1384 parse_stab_type (dhandle, info, (const char *) NULL, pp, 1385 (debug_type **) NULL), 1386 (debug_type *) NULL, FALSE)); 1387 break; 1388 1389 case 'k': 1390 /* Const qualifier on some type (Sun). */ 1391 /* FIXME: gdb accepts 'c' here if os9k_stabs. */ 1392 dtype = debug_make_const_type (dhandle, 1393 parse_stab_type (dhandle, info, 1394 (const char *) NULL, 1395 pp, 1396 (debug_type **) NULL)); 1397 break; 1398 1399 case 'B': 1400 /* Volatile qual on some type (Sun). */ 1401 /* FIXME: gdb accepts 'i' here if os9k_stabs. */ 1402 dtype = (debug_make_volatile_type 1403 (dhandle, 1404 parse_stab_type (dhandle, info, (const char *) NULL, pp, 1405 (debug_type **) NULL))); 1406 break; 1407 1408 case '@': 1409 /* Offset (class & variable) type. This is used for a pointer 1410 relative to an object. */ 1411 { 1412 debug_type domain; 1413 debug_type memtype; 1414 1415 /* Member type. */ 1416 1417 domain = parse_stab_type (dhandle, info, (const char *) NULL, pp, 1418 (debug_type **) NULL); 1419 if (domain == DEBUG_TYPE_NULL) 1420 return DEBUG_TYPE_NULL; 1421 1422 if (**pp != ',') 1423 { 1424 bad_stab (orig); 1425 return DEBUG_TYPE_NULL; 1426 } 1427 ++*pp; 1428 1429 memtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, 1430 (debug_type **) NULL); 1431 if (memtype == DEBUG_TYPE_NULL) 1432 return DEBUG_TYPE_NULL; 1433 1434 dtype = debug_make_offset_type (dhandle, domain, memtype); 1435 } 1436 break; 1437 1438 case '#': 1439 /* Method (class & fn) type. */ 1440 if (**pp == '#') 1441 { 1442 debug_type return_type; 1443 1444 ++*pp; 1445 return_type = parse_stab_type (dhandle, info, (const char *) NULL, 1446 pp, (debug_type **) NULL); 1447 if (return_type == DEBUG_TYPE_NULL) 1448 return DEBUG_TYPE_NULL; 1449 if (**pp != ';') 1450 { 1451 bad_stab (orig); 1452 return DEBUG_TYPE_NULL; 1453 } 1454 ++*pp; 1455 dtype = debug_make_method_type (dhandle, return_type, 1456 DEBUG_TYPE_NULL, 1457 (debug_type *) NULL, FALSE); 1458 } 1459 else 1460 { 1461 debug_type domain; 1462 debug_type return_type; 1463 debug_type *args; 1464 unsigned int n; 1465 unsigned int alloc; 1466 bfd_boolean varargs; 1467 1468 domain = parse_stab_type (dhandle, info, (const char *) NULL, 1469 pp, (debug_type **) NULL); 1470 if (domain == DEBUG_TYPE_NULL) 1471 return DEBUG_TYPE_NULL; 1472 1473 if (**pp != ',') 1474 { 1475 bad_stab (orig); 1476 return DEBUG_TYPE_NULL; 1477 } 1478 ++*pp; 1479 1480 return_type = parse_stab_type (dhandle, info, (const char *) NULL, 1481 pp, (debug_type **) NULL); 1482 if (return_type == DEBUG_TYPE_NULL) 1483 return DEBUG_TYPE_NULL; 1484 1485 alloc = 10; 1486 args = (debug_type *) xmalloc (alloc * sizeof *args); 1487 n = 0; 1488 while (**pp != ';') 1489 { 1490 if (**pp != ',') 1491 { 1492 bad_stab (orig); 1493 return DEBUG_TYPE_NULL; 1494 } 1495 ++*pp; 1496 1497 if (n + 1 >= alloc) 1498 { 1499 alloc += 10; 1500 args = ((debug_type *) 1501 xrealloc (args, alloc * sizeof *args)); 1502 } 1503 1504 args[n] = parse_stab_type (dhandle, info, (const char *) NULL, 1505 pp, (debug_type **) NULL); 1506 if (args[n] == DEBUG_TYPE_NULL) 1507 return DEBUG_TYPE_NULL; 1508 ++n; 1509 } 1510 ++*pp; 1511 1512 /* If the last type is not void, then this function takes a 1513 variable number of arguments. Otherwise, we must strip 1514 the void type. */ 1515 if (n == 0 1516 || debug_get_type_kind (dhandle, args[n - 1]) != DEBUG_KIND_VOID) 1517 varargs = TRUE; 1518 else 1519 { 1520 --n; 1521 varargs = FALSE; 1522 } 1523 1524 args[n] = DEBUG_TYPE_NULL; 1525 1526 dtype = debug_make_method_type (dhandle, return_type, domain, args, 1527 varargs); 1528 } 1529 break; 1530 1531 case 'r': 1532 /* Range type. */ 1533 dtype = parse_stab_range_type (dhandle, info, type_name, pp, typenums); 1534 break; 1535 1536 case 'b': 1537 /* FIXME: gdb checks os9k_stabs here. */ 1538 /* Sun ACC builtin int type. */ 1539 dtype = parse_stab_sun_builtin_type (dhandle, pp); 1540 break; 1541 1542 case 'R': 1543 /* Sun ACC builtin float type. */ 1544 dtype = parse_stab_sun_floating_type (dhandle, pp); 1545 break; 1546 1547 case 'e': 1548 /* Enumeration type. */ 1549 dtype = parse_stab_enum_type (dhandle, pp); 1550 break; 1551 1552 case 's': 1553 case 'u': 1554 /* Struct or union type. */ 1555 dtype = parse_stab_struct_type (dhandle, info, type_name, pp, 1556 descriptor == 's', typenums); 1557 break; 1558 1559 case 'a': 1560 /* Array type. */ 1561 if (**pp != 'r') 1562 { 1563 bad_stab (orig); 1564 return DEBUG_TYPE_NULL; 1565 } 1566 ++*pp; 1567 1568 dtype = parse_stab_array_type (dhandle, info, pp, stringp); 1569 break; 1570 1571 case 'S': 1572 dtype = debug_make_set_type (dhandle, 1573 parse_stab_type (dhandle, info, 1574 (const char *) NULL, 1575 pp, 1576 (debug_type **) NULL), 1577 stringp); 1578 break; 1579 1580 default: 1581 bad_stab (orig); 1582 return DEBUG_TYPE_NULL; 1583 } 1584 1585 if (dtype == DEBUG_TYPE_NULL) 1586 return DEBUG_TYPE_NULL; 1587 1588 if (typenums[0] != -1) 1589 { 1590 if (! stab_record_type (dhandle, info, typenums, dtype)) 1591 return DEBUG_TYPE_NULL; 1592 } 1593 1594 if (size != -1) 1595 { 1596 if (! debug_record_type_size (dhandle, dtype, (unsigned int) size)) 1597 return DEBUG_TYPE_NULL; 1598 } 1599 1600 return dtype; 1601 } 1602 1603 /* Read a number by which a type is referred to in dbx data, or 1604 perhaps read a pair (FILENUM, TYPENUM) in parentheses. Just a 1605 single number N is equivalent to (0,N). Return the two numbers by 1606 storing them in the vector TYPENUMS. */ 1607 1608 static bfd_boolean 1609 parse_stab_type_number (const char **pp, int *typenums) 1610 { 1611 const char *orig; 1612 1613 orig = *pp; 1614 1615 if (**pp != '(') 1616 { 1617 typenums[0] = 0; 1618 typenums[1] = (int) parse_number (pp, (bfd_boolean *) NULL); 1619 } 1620 else 1621 { 1622 ++*pp; 1623 typenums[0] = (int) parse_number (pp, (bfd_boolean *) NULL); 1624 if (**pp != ',') 1625 { 1626 bad_stab (orig); 1627 return FALSE; 1628 } 1629 ++*pp; 1630 typenums[1] = (int) parse_number (pp, (bfd_boolean *) NULL); 1631 if (**pp != ')') 1632 { 1633 bad_stab (orig); 1634 return FALSE; 1635 } 1636 ++*pp; 1637 } 1638 1639 return TRUE; 1640 } 1641 1642 /* Parse a range type. */ 1643 1644 static debug_type 1645 parse_stab_range_type (void *dhandle, struct stab_handle *info, const char *type_name, const char **pp, const int *typenums) 1646 { 1647 const char *orig; 1648 int rangenums[2]; 1649 bfd_boolean self_subrange; 1650 debug_type index_type; 1651 const char *s2, *s3; 1652 bfd_signed_vma n2, n3; 1653 bfd_boolean ov2, ov3; 1654 1655 orig = *pp; 1656 1657 index_type = DEBUG_TYPE_NULL; 1658 1659 /* First comes a type we are a subrange of. 1660 In C it is usually 0, 1 or the type being defined. */ 1661 if (! parse_stab_type_number (pp, rangenums)) 1662 return DEBUG_TYPE_NULL; 1663 1664 self_subrange = (rangenums[0] == typenums[0] 1665 && rangenums[1] == typenums[1]); 1666 1667 if (**pp == '=') 1668 { 1669 *pp = orig; 1670 index_type = parse_stab_type (dhandle, info, (const char *) NULL, 1671 pp, (debug_type **) NULL); 1672 if (index_type == DEBUG_TYPE_NULL) 1673 return DEBUG_TYPE_NULL; 1674 } 1675 1676 if (**pp == ';') 1677 ++*pp; 1678 1679 /* The remaining two operands are usually lower and upper bounds of 1680 the range. But in some special cases they mean something else. */ 1681 s2 = *pp; 1682 n2 = parse_number (pp, &ov2); 1683 if (**pp != ';') 1684 { 1685 bad_stab (orig); 1686 return DEBUG_TYPE_NULL; 1687 } 1688 ++*pp; 1689 1690 s3 = *pp; 1691 n3 = parse_number (pp, &ov3); 1692 if (**pp != ';') 1693 { 1694 bad_stab (orig); 1695 return DEBUG_TYPE_NULL; 1696 } 1697 ++*pp; 1698 1699 if (ov2 || ov3) 1700 { 1701 /* gcc will emit range stabs for long long types. Handle this 1702 as a special case. FIXME: This needs to be more general. */ 1703 #define LLLOW "01000000000000000000000;" 1704 #define LLHIGH "0777777777777777777777;" 1705 #define ULLHIGH "01777777777777777777777;" 1706 if (index_type == DEBUG_TYPE_NULL) 1707 { 1708 if (CONST_STRNEQ (s2, LLLOW) 1709 && CONST_STRNEQ (s3, LLHIGH)) 1710 return debug_make_int_type (dhandle, 8, FALSE); 1711 if (! ov2 1712 && n2 == 0 1713 && CONST_STRNEQ (s3, ULLHIGH)) 1714 return debug_make_int_type (dhandle, 8, TRUE); 1715 } 1716 1717 warn_stab (orig, _("numeric overflow")); 1718 } 1719 1720 if (index_type == DEBUG_TYPE_NULL) 1721 { 1722 /* A type defined as a subrange of itself, with both bounds 0, 1723 is void. */ 1724 if (self_subrange && n2 == 0 && n3 == 0) 1725 return debug_make_void_type (dhandle); 1726 1727 /* A type defined as a subrange of itself, with n2 positive and 1728 n3 zero, is a complex type, and n2 is the number of bytes. */ 1729 if (self_subrange && n3 == 0 && n2 > 0) 1730 return debug_make_complex_type (dhandle, n2); 1731 1732 /* If n3 is zero and n2 is positive, this is a floating point 1733 type, and n2 is the number of bytes. */ 1734 if (n3 == 0 && n2 > 0) 1735 return debug_make_float_type (dhandle, n2); 1736 1737 /* If the upper bound is -1, this is an unsigned int. */ 1738 if (n2 == 0 && n3 == -1) 1739 { 1740 /* When gcc is used with -gstabs, but not -gstabs+, it will emit 1741 long long int:t6=r1;0;-1; 1742 long long unsigned int:t7=r1;0;-1; 1743 We hack here to handle this reasonably. */ 1744 if (type_name != NULL) 1745 { 1746 if (strcmp (type_name, "long long int") == 0) 1747 return debug_make_int_type (dhandle, 8, FALSE); 1748 else if (strcmp (type_name, "long long unsigned int") == 0) 1749 return debug_make_int_type (dhandle, 8, TRUE); 1750 } 1751 /* FIXME: The size here really depends upon the target. */ 1752 return debug_make_int_type (dhandle, 4, TRUE); 1753 } 1754 1755 /* A range of 0 to 127 is char. */ 1756 if (self_subrange && n2 == 0 && n3 == 127) 1757 return debug_make_int_type (dhandle, 1, FALSE); 1758 1759 /* FIXME: gdb checks for the language CHILL here. */ 1760 1761 if (n2 == 0) 1762 { 1763 if (n3 < 0) 1764 return debug_make_int_type (dhandle, - n3, TRUE); 1765 else if (n3 == 0xff) 1766 return debug_make_int_type (dhandle, 1, TRUE); 1767 else if (n3 == 0xffff) 1768 return debug_make_int_type (dhandle, 2, TRUE); 1769 else if (n3 == (bfd_signed_vma) 0xffffffff) 1770 return debug_make_int_type (dhandle, 4, TRUE); 1771 #ifdef BFD64 1772 else if (n3 == ((((bfd_signed_vma) 0xffffffff) << 32) | 0xffffffff)) 1773 return debug_make_int_type (dhandle, 8, TRUE); 1774 #endif 1775 } 1776 else if (n3 == 0 1777 && n2 < 0 1778 && (self_subrange || n2 == -8)) 1779 return debug_make_int_type (dhandle, - n2, TRUE); 1780 else if (n2 == - n3 - 1 || n2 == n3 + 1) 1781 { 1782 if (n3 == 0x7f) 1783 return debug_make_int_type (dhandle, 1, FALSE); 1784 else if (n3 == 0x7fff) 1785 return debug_make_int_type (dhandle, 2, FALSE); 1786 else if (n3 == 0x7fffffff) 1787 return debug_make_int_type (dhandle, 4, FALSE); 1788 #ifdef BFD64 1789 else if (n3 == ((((bfd_vma) 0x7fffffff) << 32) | 0xffffffff)) 1790 return debug_make_int_type (dhandle, 8, FALSE); 1791 #endif 1792 } 1793 } 1794 1795 /* At this point I don't have the faintest idea how to deal with a 1796 self_subrange type; I'm going to assume that this is used as an 1797 idiom, and that all of them are special cases. So . . . */ 1798 if (self_subrange) 1799 { 1800 bad_stab (orig); 1801 return DEBUG_TYPE_NULL; 1802 } 1803 1804 index_type = stab_find_type (dhandle, info, rangenums); 1805 if (index_type == DEBUG_TYPE_NULL) 1806 { 1807 /* Does this actually ever happen? Is that why we are worrying 1808 about dealing with it rather than just calling error_type? */ 1809 warn_stab (orig, _("missing index type")); 1810 index_type = debug_make_int_type (dhandle, 4, FALSE); 1811 } 1812 1813 return debug_make_range_type (dhandle, index_type, n2, n3); 1814 } 1815 1816 /* Sun's ACC uses a somewhat saner method for specifying the builtin 1817 typedefs in every file (for int, long, etc): 1818 1819 type = b <signed> <width>; <offset>; <nbits> 1820 signed = u or s. Possible c in addition to u or s (for char?). 1821 offset = offset from high order bit to start bit of type. 1822 width is # bytes in object of this type, nbits is # bits in type. 1823 1824 The width/offset stuff appears to be for small objects stored in 1825 larger ones (e.g. `shorts' in `int' registers). We ignore it for now, 1826 FIXME. */ 1827 1828 static debug_type 1829 parse_stab_sun_builtin_type (void *dhandle, const char **pp) 1830 { 1831 const char *orig; 1832 bfd_boolean unsignedp; 1833 bfd_vma bits; 1834 1835 orig = *pp; 1836 1837 switch (**pp) 1838 { 1839 case 's': 1840 unsignedp = FALSE; 1841 break; 1842 case 'u': 1843 unsignedp = TRUE; 1844 break; 1845 default: 1846 bad_stab (orig); 1847 return DEBUG_TYPE_NULL; 1848 } 1849 ++*pp; 1850 1851 /* OpenSolaris source code indicates that one of "cbv" characters 1852 can come next and specify the intrinsic 'iformat' encoding. 1853 'c' is character encoding, 'b' is boolean encoding, and 'v' is 1854 varargs encoding. This field can be safely ignored because 1855 the type of the field is determined from the bitwidth extracted 1856 below. */ 1857 if (**pp == 'c' || **pp == 'b' || **pp == 'v') 1858 ++*pp; 1859 1860 /* The first number appears to be the number of bytes occupied 1861 by this type, except that unsigned short is 4 instead of 2. 1862 Since this information is redundant with the third number, 1863 we will ignore it. */ 1864 (void) parse_number (pp, (bfd_boolean *) NULL); 1865 if (**pp != ';') 1866 { 1867 bad_stab (orig); 1868 return DEBUG_TYPE_NULL; 1869 } 1870 ++*pp; 1871 1872 /* The second number is always 0, so ignore it too. */ 1873 (void) parse_number (pp, (bfd_boolean *) NULL); 1874 if (**pp != ';') 1875 { 1876 bad_stab (orig); 1877 return DEBUG_TYPE_NULL; 1878 } 1879 ++*pp; 1880 1881 /* The third number is the number of bits for this type. */ 1882 bits = parse_number (pp, (bfd_boolean *) NULL); 1883 1884 /* The type *should* end with a semicolon. If it are embedded 1885 in a larger type the semicolon may be the only way to know where 1886 the type ends. If this type is at the end of the stabstring we 1887 can deal with the omitted semicolon (but we don't have to like 1888 it). Don't bother to complain(), Sun's compiler omits the semicolon 1889 for "void". */ 1890 if (**pp == ';') 1891 ++*pp; 1892 1893 if (bits == 0) 1894 return debug_make_void_type (dhandle); 1895 1896 return debug_make_int_type (dhandle, bits / 8, unsignedp); 1897 } 1898 1899 /* Parse a builtin floating type generated by the Sun compiler. */ 1900 1901 static debug_type 1902 parse_stab_sun_floating_type (void *dhandle, const char **pp) 1903 { 1904 const char *orig; 1905 bfd_vma details; 1906 bfd_vma bytes; 1907 1908 orig = *pp; 1909 1910 /* The first number has more details about the type, for example 1911 FN_COMPLEX. */ 1912 details = parse_number (pp, (bfd_boolean *) NULL); 1913 if (**pp != ';') 1914 { 1915 bad_stab (orig); 1916 return DEBUG_TYPE_NULL; 1917 } 1918 1919 /* The second number is the number of bytes occupied by this type */ 1920 bytes = parse_number (pp, (bfd_boolean *) NULL); 1921 if (**pp != ';') 1922 { 1923 bad_stab (orig); 1924 return DEBUG_TYPE_NULL; 1925 } 1926 1927 if (details == NF_COMPLEX 1928 || details == NF_COMPLEX16 1929 || details == NF_COMPLEX32) 1930 return debug_make_complex_type (dhandle, bytes); 1931 1932 return debug_make_float_type (dhandle, bytes); 1933 } 1934 1935 /* Handle an enum type. */ 1936 1937 static debug_type 1938 parse_stab_enum_type (void *dhandle, const char **pp) 1939 { 1940 const char *orig; 1941 const char **names; 1942 bfd_signed_vma *values; 1943 unsigned int n; 1944 unsigned int alloc; 1945 1946 orig = *pp; 1947 1948 /* FIXME: gdb checks os9k_stabs here. */ 1949 1950 /* The aix4 compiler emits an extra field before the enum members; 1951 my guess is it's a type of some sort. Just ignore it. */ 1952 if (**pp == '-') 1953 { 1954 while (**pp != ':') 1955 ++*pp; 1956 ++*pp; 1957 } 1958 1959 /* Read the value-names and their values. 1960 The input syntax is NAME:VALUE,NAME:VALUE, and so on. 1961 A semicolon or comma instead of a NAME means the end. */ 1962 alloc = 10; 1963 names = (const char **) xmalloc (alloc * sizeof *names); 1964 values = (bfd_signed_vma *) xmalloc (alloc * sizeof *values); 1965 n = 0; 1966 while (**pp != '\0' && **pp != ';' && **pp != ',') 1967 { 1968 const char *p; 1969 char *name; 1970 bfd_signed_vma val; 1971 1972 p = *pp; 1973 while (*p != ':') 1974 ++p; 1975 1976 name = savestring (*pp, p - *pp); 1977 1978 *pp = p + 1; 1979 val = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL); 1980 if (**pp != ',') 1981 { 1982 bad_stab (orig); 1983 free (name); 1984 free (names); 1985 free (values); 1986 return DEBUG_TYPE_NULL; 1987 } 1988 ++*pp; 1989 1990 if (n + 1 >= alloc) 1991 { 1992 alloc += 10; 1993 names = ((const char **) 1994 xrealloc (names, alloc * sizeof *names)); 1995 values = ((bfd_signed_vma *) 1996 xrealloc (values, alloc * sizeof *values)); 1997 } 1998 1999 names[n] = name; 2000 values[n] = val; 2001 ++n; 2002 } 2003 2004 names[n] = NULL; 2005 values[n] = 0; 2006 2007 if (**pp == ';') 2008 ++*pp; 2009 2010 return debug_make_enum_type (dhandle, names, values); 2011 } 2012 2013 /* Read the description of a structure (or union type) and return an object 2014 describing the type. 2015 2016 PP points to a character pointer that points to the next unconsumed token 2017 in the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", 2018 *PP will point to "4a:1,0,32;;". */ 2019 2020 static debug_type 2021 parse_stab_struct_type (void *dhandle, struct stab_handle *info, 2022 const char *tagname, const char **pp, 2023 bfd_boolean structp, const int *typenums) 2024 { 2025 bfd_vma size; 2026 debug_baseclass *baseclasses; 2027 debug_field *fields = NULL; 2028 bfd_boolean statics; 2029 debug_method *methods; 2030 debug_type vptrbase; 2031 bfd_boolean ownvptr; 2032 2033 /* Get the size. */ 2034 size = parse_number (pp, (bfd_boolean *) NULL); 2035 2036 /* Get the other information. */ 2037 if (! parse_stab_baseclasses (dhandle, info, pp, &baseclasses) 2038 || ! parse_stab_struct_fields (dhandle, info, pp, &fields, &statics) 2039 || ! parse_stab_members (dhandle, info, tagname, pp, typenums, &methods) 2040 || ! parse_stab_tilde_field (dhandle, info, pp, typenums, &vptrbase, 2041 &ownvptr)) 2042 { 2043 if (fields != NULL) 2044 free (fields); 2045 return DEBUG_TYPE_NULL; 2046 } 2047 2048 if (! statics 2049 && baseclasses == NULL 2050 && methods == NULL 2051 && vptrbase == DEBUG_TYPE_NULL 2052 && ! ownvptr) 2053 return debug_make_struct_type (dhandle, structp, size, fields); 2054 2055 return debug_make_object_type (dhandle, structp, size, fields, baseclasses, 2056 methods, vptrbase, ownvptr); 2057 } 2058 2059 /* The stabs for C++ derived classes contain baseclass information which 2060 is marked by a '!' character after the total size. This function is 2061 called when we encounter the baseclass marker, and slurps up all the 2062 baseclass information. 2063 2064 Immediately following the '!' marker is the number of base classes that 2065 the class is derived from, followed by information for each base class. 2066 For each base class, there are two visibility specifiers, a bit offset 2067 to the base class information within the derived class, a reference to 2068 the type for the base class, and a terminating semicolon. 2069 2070 A typical example, with two base classes, would be "!2,020,19;0264,21;". 2071 ^^ ^ ^ ^ ^ ^ ^ 2072 Baseclass information marker __________________|| | | | | | | 2073 Number of baseclasses __________________________| | | | | | | 2074 Visibility specifiers (2) ________________________| | | | | | 2075 Offset in bits from start of class _________________| | | | | 2076 Type number for base class ___________________________| | | | 2077 Visibility specifiers (2) _______________________________| | | 2078 Offset in bits from start of class ________________________| | 2079 Type number of base class ____________________________________| 2080 2081 Return TRUE for success, FALSE for failure. */ 2082 2083 static bfd_boolean 2084 parse_stab_baseclasses (void *dhandle, struct stab_handle *info, 2085 const char **pp, debug_baseclass **retp) 2086 { 2087 const char *orig; 2088 unsigned int c, i; 2089 debug_baseclass *classes; 2090 2091 *retp = NULL; 2092 2093 orig = *pp; 2094 2095 if (**pp != '!') 2096 { 2097 /* No base classes. */ 2098 return TRUE; 2099 } 2100 ++*pp; 2101 2102 c = (unsigned int) parse_number (pp, (bfd_boolean *) NULL); 2103 2104 if (**pp != ',') 2105 { 2106 bad_stab (orig); 2107 return FALSE; 2108 } 2109 ++*pp; 2110 2111 classes = (debug_baseclass *) xmalloc ((c + 1) * sizeof (**retp)); 2112 2113 for (i = 0; i < c; i++) 2114 { 2115 bfd_boolean is_virtual; 2116 enum debug_visibility visibility; 2117 bfd_vma bitpos; 2118 debug_type type; 2119 2120 switch (**pp) 2121 { 2122 case '0': 2123 is_virtual = FALSE; 2124 break; 2125 case '1': 2126 is_virtual = TRUE; 2127 break; 2128 default: 2129 warn_stab (orig, _("unknown virtual character for baseclass")); 2130 is_virtual = FALSE; 2131 break; 2132 } 2133 ++*pp; 2134 2135 switch (**pp) 2136 { 2137 case '0': 2138 visibility = DEBUG_VISIBILITY_PRIVATE; 2139 break; 2140 case '1': 2141 visibility = DEBUG_VISIBILITY_PROTECTED; 2142 break; 2143 case '2': 2144 visibility = DEBUG_VISIBILITY_PUBLIC; 2145 break; 2146 default: 2147 warn_stab (orig, _("unknown visibility character for baseclass")); 2148 visibility = DEBUG_VISIBILITY_PUBLIC; 2149 break; 2150 } 2151 ++*pp; 2152 2153 /* The remaining value is the bit offset of the portion of the 2154 object corresponding to this baseclass. Always zero in the 2155 absence of multiple inheritance. */ 2156 bitpos = parse_number (pp, (bfd_boolean *) NULL); 2157 if (**pp != ',') 2158 { 2159 bad_stab (orig); 2160 return FALSE; 2161 } 2162 ++*pp; 2163 2164 type = parse_stab_type (dhandle, info, (const char *) NULL, pp, 2165 (debug_type **) NULL); 2166 if (type == DEBUG_TYPE_NULL) 2167 return FALSE; 2168 2169 classes[i] = debug_make_baseclass (dhandle, type, bitpos, is_virtual, 2170 visibility); 2171 if (classes[i] == DEBUG_BASECLASS_NULL) 2172 return FALSE; 2173 2174 if (**pp != ';') 2175 return FALSE; 2176 ++*pp; 2177 } 2178 2179 classes[i] = DEBUG_BASECLASS_NULL; 2180 2181 *retp = classes; 2182 2183 return TRUE; 2184 } 2185 2186 /* Read struct or class data fields. They have the form: 2187 2188 NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; 2189 2190 At the end, we see a semicolon instead of a field. 2191 2192 In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for 2193 a static field. 2194 2195 The optional VISIBILITY is one of: 2196 2197 '/0' (VISIBILITY_PRIVATE) 2198 '/1' (VISIBILITY_PROTECTED) 2199 '/2' (VISIBILITY_PUBLIC) 2200 '/9' (VISIBILITY_IGNORE) 2201 2202 or nothing, for C style fields with public visibility. 2203 2204 Returns 1 for success, 0 for failure. */ 2205 2206 static bfd_boolean 2207 parse_stab_struct_fields (void *dhandle, struct stab_handle *info, 2208 const char **pp, debug_field **retp, 2209 bfd_boolean *staticsp) 2210 { 2211 const char *orig; 2212 const char *p; 2213 debug_field *fields; 2214 unsigned int c; 2215 unsigned int alloc; 2216 2217 *retp = NULL; 2218 *staticsp = FALSE; 2219 2220 orig = *pp; 2221 2222 c = 0; 2223 alloc = 10; 2224 fields = (debug_field *) xmalloc (alloc * sizeof *fields); 2225 while (**pp != ';') 2226 { 2227 /* FIXME: gdb checks os9k_stabs here. */ 2228 2229 p = *pp; 2230 2231 /* Add 1 to c to leave room for NULL pointer at end. */ 2232 if (c + 1 >= alloc) 2233 { 2234 alloc += 10; 2235 fields = ((debug_field *) 2236 xrealloc (fields, alloc * sizeof *fields)); 2237 } 2238 2239 /* If it starts with CPLUS_MARKER it is a special abbreviation, 2240 unless the CPLUS_MARKER is followed by an underscore, in 2241 which case it is just the name of an anonymous type, which we 2242 should handle like any other type name. We accept either '$' 2243 or '.', because a field name can never contain one of these 2244 characters except as a CPLUS_MARKER. */ 2245 2246 if ((*p == '$' || *p == '.') && p[1] != '_') 2247 { 2248 ++*pp; 2249 if (! parse_stab_cpp_abbrev (dhandle, info, pp, fields + c)) 2250 { 2251 free (fields); 2252 return FALSE; 2253 } 2254 ++c; 2255 continue; 2256 } 2257 2258 /* Look for the ':' that separates the field name from the field 2259 values. Data members are delimited by a single ':', while member 2260 functions are delimited by a pair of ':'s. When we hit the member 2261 functions (if any), terminate scan loop and return. */ 2262 2263 p = strchr (p, ':'); 2264 if (p == NULL) 2265 { 2266 bad_stab (orig); 2267 free (fields); 2268 return FALSE; 2269 } 2270 2271 if (p[1] == ':') 2272 break; 2273 2274 if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c, 2275 staticsp)) 2276 return FALSE; 2277 2278 ++c; 2279 } 2280 2281 fields[c] = DEBUG_FIELD_NULL; 2282 2283 *retp = fields; 2284 2285 return TRUE; 2286 } 2287 2288 /* Special GNU C++ name. */ 2289 2290 static bfd_boolean 2291 parse_stab_cpp_abbrev (void *dhandle, struct stab_handle *info, 2292 const char **pp, debug_field *retp) 2293 { 2294 const char *orig; 2295 int cpp_abbrev; 2296 debug_type context; 2297 const char *name; 2298 const char *type_name; 2299 debug_type type; 2300 bfd_vma bitpos; 2301 2302 *retp = DEBUG_FIELD_NULL; 2303 2304 orig = *pp; 2305 2306 if (**pp != 'v') 2307 { 2308 bad_stab (*pp); 2309 return FALSE; 2310 } 2311 ++*pp; 2312 2313 cpp_abbrev = **pp; 2314 ++*pp; 2315 2316 /* At this point, *pp points to something like "22:23=*22...", where 2317 the type number before the ':' is the "context" and everything 2318 after is a regular type definition. Lookup the type, find it's 2319 name, and construct the field name. */ 2320 2321 context = parse_stab_type (dhandle, info, (const char *) NULL, pp, 2322 (debug_type **) NULL); 2323 if (context == DEBUG_TYPE_NULL) 2324 return FALSE; 2325 2326 switch (cpp_abbrev) 2327 { 2328 case 'f': 2329 /* $vf -- a virtual function table pointer. */ 2330 name = "_vptr$"; 2331 break; 2332 case 'b': 2333 /* $vb -- a virtual bsomethingorother */ 2334 type_name = debug_get_type_name (dhandle, context); 2335 if (type_name == NULL) 2336 { 2337 warn_stab (orig, _("unnamed $vb type")); 2338 type_name = "FOO"; 2339 } 2340 name = concat ("_vb$", type_name, (const char *) NULL); 2341 break; 2342 default: 2343 warn_stab (orig, _("unrecognized C++ abbreviation")); 2344 name = "INVALID_CPLUSPLUS_ABBREV"; 2345 break; 2346 } 2347 2348 if (**pp != ':') 2349 { 2350 bad_stab (orig); 2351 return FALSE; 2352 } 2353 ++*pp; 2354 2355 type = parse_stab_type (dhandle, info, (const char *) NULL, pp, 2356 (debug_type **) NULL); 2357 if (**pp != ',') 2358 { 2359 bad_stab (orig); 2360 return FALSE; 2361 } 2362 ++*pp; 2363 2364 bitpos = parse_number (pp, (bfd_boolean *) NULL); 2365 if (**pp != ';') 2366 { 2367 bad_stab (orig); 2368 return FALSE; 2369 } 2370 ++*pp; 2371 2372 *retp = debug_make_field (dhandle, name, type, bitpos, 0, 2373 DEBUG_VISIBILITY_PRIVATE); 2374 if (*retp == DEBUG_FIELD_NULL) 2375 return FALSE; 2376 2377 return TRUE; 2378 } 2379 2380 /* Parse a single field in a struct or union. */ 2381 2382 static bfd_boolean 2383 parse_stab_one_struct_field (void *dhandle, struct stab_handle *info, 2384 const char **pp, const char *p, 2385 debug_field *retp, bfd_boolean *staticsp) 2386 { 2387 const char *orig; 2388 char *name; 2389 enum debug_visibility visibility; 2390 debug_type type; 2391 bfd_vma bitpos; 2392 bfd_vma bitsize; 2393 2394 orig = *pp; 2395 2396 /* FIXME: gdb checks ARM_DEMANGLING here. */ 2397 2398 name = savestring (*pp, p - *pp); 2399 2400 *pp = p + 1; 2401 2402 if (**pp != '/') 2403 visibility = DEBUG_VISIBILITY_PUBLIC; 2404 else 2405 { 2406 ++*pp; 2407 switch (**pp) 2408 { 2409 case '0': 2410 visibility = DEBUG_VISIBILITY_PRIVATE; 2411 break; 2412 case '1': 2413 visibility = DEBUG_VISIBILITY_PROTECTED; 2414 break; 2415 case '2': 2416 visibility = DEBUG_VISIBILITY_PUBLIC; 2417 break; 2418 default: 2419 warn_stab (orig, _("unknown visibility character for field")); 2420 visibility = DEBUG_VISIBILITY_PUBLIC; 2421 break; 2422 } 2423 ++*pp; 2424 } 2425 2426 type = parse_stab_type (dhandle, info, (const char *) NULL, pp, 2427 (debug_type **) NULL); 2428 if (type == DEBUG_TYPE_NULL) 2429 { 2430 free (name); 2431 return FALSE; 2432 } 2433 2434 if (**pp == ':') 2435 { 2436 char *varname; 2437 2438 /* This is a static class member. */ 2439 ++*pp; 2440 p = strchr (*pp, ';'); 2441 if (p == NULL) 2442 { 2443 bad_stab (orig); 2444 free (name); 2445 return FALSE; 2446 } 2447 2448 varname = savestring (*pp, p - *pp); 2449 2450 *pp = p + 1; 2451 2452 *retp = debug_make_static_member (dhandle, name, type, varname, 2453 visibility); 2454 *staticsp = TRUE; 2455 2456 return TRUE; 2457 } 2458 2459 if (**pp != ',') 2460 { 2461 bad_stab (orig); 2462 free (name); 2463 return FALSE; 2464 } 2465 ++*pp; 2466 2467 bitpos = parse_number (pp, (bfd_boolean *) NULL); 2468 if (**pp != ',') 2469 { 2470 bad_stab (orig); 2471 free (name); 2472 return FALSE; 2473 } 2474 ++*pp; 2475 2476 bitsize = parse_number (pp, (bfd_boolean *) NULL); 2477 if (**pp != ';') 2478 { 2479 bad_stab (orig); 2480 free (name); 2481 return FALSE; 2482 } 2483 ++*pp; 2484 2485 if (bitpos == 0 && bitsize == 0) 2486 { 2487 /* This can happen in two cases: (1) at least for gcc 2.4.5 or 2488 so, it is a field which has been optimized out. The correct 2489 stab for this case is to use VISIBILITY_IGNORE, but that is a 2490 recent invention. (2) It is a 0-size array. For example 2491 union { int num; char str[0]; } foo. Printing "<no value>" 2492 for str in "p foo" is OK, since foo.str (and thus foo.str[3]) 2493 will continue to work, and a 0-size array as a whole doesn't 2494 have any contents to print. 2495 2496 I suspect this probably could also happen with gcc -gstabs 2497 (not -gstabs+) for static fields, and perhaps other C++ 2498 extensions. Hopefully few people use -gstabs with gdb, since 2499 it is intended for dbx compatibility. */ 2500 visibility = DEBUG_VISIBILITY_IGNORE; 2501 } 2502 2503 /* FIXME: gdb does some stuff here to mark fields as unpacked. */ 2504 2505 *retp = debug_make_field (dhandle, name, type, bitpos, bitsize, visibility); 2506 2507 return TRUE; 2508 } 2509 2510 /* Read member function stabs info for C++ classes. The form of each member 2511 function data is: 2512 2513 NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; 2514 2515 An example with two member functions is: 2516 2517 afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; 2518 2519 For the case of overloaded operators, the format is op$::*.funcs, where 2520 $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator 2521 name (such as `+=') and `.' marks the end of the operator name. */ 2522 2523 static bfd_boolean 2524 parse_stab_members (void *dhandle, struct stab_handle *info, 2525 const char *tagname, const char **pp, 2526 const int *typenums, debug_method **retp) 2527 { 2528 const char *orig; 2529 debug_method *methods; 2530 unsigned int c; 2531 unsigned int alloc; 2532 char *name = NULL; 2533 debug_method_variant *variants = NULL; 2534 char *argtypes = NULL; 2535 2536 *retp = NULL; 2537 2538 orig = *pp; 2539 2540 alloc = 0; 2541 methods = NULL; 2542 c = 0; 2543 2544 while (**pp != ';') 2545 { 2546 const char *p; 2547 unsigned int cvars; 2548 unsigned int allocvars; 2549 debug_type look_ahead_type; 2550 2551 p = strchr (*pp, ':'); 2552 if (p == NULL || p[1] != ':') 2553 break; 2554 2555 /* FIXME: Some systems use something other than '$' here. */ 2556 if ((*pp)[0] != 'o' || (*pp)[1] != 'p' || (*pp)[2] != '$') 2557 { 2558 name = savestring (*pp, p - *pp); 2559 *pp = p + 2; 2560 } 2561 else 2562 { 2563 /* This is a completely weird case. In order to stuff in the 2564 names that might contain colons (the usual name delimiter), 2565 Mike Tiemann defined a different name format which is 2566 signalled if the identifier is "op$". In that case, the 2567 format is "op$::XXXX." where XXXX is the name. This is 2568 used for names like "+" or "=". YUUUUUUUK! FIXME! */ 2569 *pp = p + 2; 2570 for (p = *pp; *p != '.' && *p != '\0'; p++) 2571 ; 2572 if (*p != '.') 2573 { 2574 bad_stab (orig); 2575 goto fail; 2576 } 2577 name = savestring (*pp, p - *pp); 2578 *pp = p + 1; 2579 } 2580 2581 allocvars = 10; 2582 variants = ((debug_method_variant *) 2583 xmalloc (allocvars * sizeof *variants)); 2584 cvars = 0; 2585 2586 look_ahead_type = DEBUG_TYPE_NULL; 2587 2588 do 2589 { 2590 debug_type type; 2591 bfd_boolean stub; 2592 enum debug_visibility visibility; 2593 bfd_boolean constp, volatilep, staticp; 2594 bfd_vma voffset; 2595 debug_type context; 2596 const char *physname; 2597 bfd_boolean varargs; 2598 2599 if (look_ahead_type != DEBUG_TYPE_NULL) 2600 { 2601 /* g++ version 1 kludge */ 2602 type = look_ahead_type; 2603 look_ahead_type = DEBUG_TYPE_NULL; 2604 } 2605 else 2606 { 2607 type = parse_stab_type (dhandle, info, (const char *) NULL, pp, 2608 (debug_type **) NULL); 2609 if (type == DEBUG_TYPE_NULL) 2610 goto fail; 2611 2612 if (**pp != ':') 2613 { 2614 bad_stab (orig); 2615 goto fail; 2616 } 2617 } 2618 2619 ++*pp; 2620 p = strchr (*pp, ';'); 2621 if (p == NULL) 2622 { 2623 bad_stab (orig); 2624 goto fail; 2625 } 2626 2627 stub = FALSE; 2628 if (debug_get_type_kind (dhandle, type) == DEBUG_KIND_METHOD 2629 && debug_get_parameter_types (dhandle, type, &varargs) == NULL) 2630 stub = TRUE; 2631 2632 argtypes = savestring (*pp, p - *pp); 2633 *pp = p + 1; 2634 2635 switch (**pp) 2636 { 2637 case '0': 2638 visibility = DEBUG_VISIBILITY_PRIVATE; 2639 break; 2640 case '1': 2641 visibility = DEBUG_VISIBILITY_PROTECTED; 2642 break; 2643 default: 2644 visibility = DEBUG_VISIBILITY_PUBLIC; 2645 break; 2646 } 2647 ++*pp; 2648 2649 constp = FALSE; 2650 volatilep = FALSE; 2651 switch (**pp) 2652 { 2653 case 'A': 2654 /* Normal function. */ 2655 ++*pp; 2656 break; 2657 case 'B': 2658 /* const member function. */ 2659 constp = TRUE; 2660 ++*pp; 2661 break; 2662 case 'C': 2663 /* volatile member function. */ 2664 volatilep = TRUE; 2665 ++*pp; 2666 break; 2667 case 'D': 2668 /* const volatile member function. */ 2669 constp = TRUE; 2670 volatilep = TRUE; 2671 ++*pp; 2672 break; 2673 case '*': 2674 case '?': 2675 case '.': 2676 /* File compiled with g++ version 1; no information. */ 2677 break; 2678 default: 2679 warn_stab (orig, _("const/volatile indicator missing")); 2680 break; 2681 } 2682 2683 staticp = FALSE; 2684 switch (**pp) 2685 { 2686 case '*': 2687 /* virtual member function, followed by index. The sign 2688 bit is supposedly set to distinguish 2689 pointers-to-methods from virtual function indicies. */ 2690 ++*pp; 2691 voffset = parse_number (pp, (bfd_boolean *) NULL); 2692 if (**pp != ';') 2693 { 2694 bad_stab (orig); 2695 goto fail; 2696 } 2697 ++*pp; 2698 voffset &= 0x7fffffff; 2699 2700 if (**pp == ';' || *pp == '\0') 2701 { 2702 /* Must be g++ version 1. */ 2703 context = DEBUG_TYPE_NULL; 2704 } 2705 else 2706 { 2707 /* Figure out from whence this virtual function 2708 came. It may belong to virtual function table of 2709 one of its baseclasses. */ 2710 look_ahead_type = parse_stab_type (dhandle, info, 2711 (const char *) NULL, 2712 pp, 2713 (debug_type **) NULL); 2714 if (**pp == ':') 2715 { 2716 /* g++ version 1 overloaded methods. */ 2717 context = DEBUG_TYPE_NULL; 2718 } 2719 else 2720 { 2721 context = look_ahead_type; 2722 look_ahead_type = DEBUG_TYPE_NULL; 2723 if (**pp != ';') 2724 { 2725 bad_stab (orig); 2726 goto fail; 2727 } 2728 ++*pp; 2729 } 2730 } 2731 break; 2732 2733 case '?': 2734 /* static member function. */ 2735 ++*pp; 2736 staticp = TRUE; 2737 voffset = 0; 2738 context = DEBUG_TYPE_NULL; 2739 if (strncmp (argtypes, name, strlen (name)) != 0) 2740 stub = TRUE; 2741 break; 2742 2743 default: 2744 warn_stab (orig, "member function type missing"); 2745 voffset = 0; 2746 context = DEBUG_TYPE_NULL; 2747 break; 2748 2749 case '.': 2750 ++*pp; 2751 voffset = 0; 2752 context = DEBUG_TYPE_NULL; 2753 break; 2754 } 2755 2756 /* If the type is not a stub, then the argtypes string is 2757 the physical name of the function. Otherwise the 2758 argtypes string is the mangled form of the argument 2759 types, and the full type and the physical name must be 2760 extracted from them. */ 2761 if (! stub) 2762 physname = argtypes; 2763 else 2764 { 2765 debug_type class_type, return_type; 2766 2767 class_type = stab_find_type (dhandle, info, typenums); 2768 if (class_type == DEBUG_TYPE_NULL) 2769 goto fail; 2770 return_type = debug_get_return_type (dhandle, type); 2771 if (return_type == DEBUG_TYPE_NULL) 2772 { 2773 bad_stab (orig); 2774 goto fail; 2775 } 2776 type = parse_stab_argtypes (dhandle, info, class_type, name, 2777 tagname, return_type, argtypes, 2778 constp, volatilep, &physname); 2779 if (type == DEBUG_TYPE_NULL) 2780 goto fail; 2781 } 2782 2783 if (cvars + 1 >= allocvars) 2784 { 2785 allocvars += 10; 2786 variants = ((debug_method_variant *) 2787 xrealloc (variants, 2788 allocvars * sizeof *variants)); 2789 } 2790 2791 if (! staticp) 2792 variants[cvars] = debug_make_method_variant (dhandle, physname, 2793 type, visibility, 2794 constp, volatilep, 2795 voffset, context); 2796 else 2797 variants[cvars] = debug_make_static_method_variant (dhandle, 2798 physname, 2799 type, 2800 visibility, 2801 constp, 2802 volatilep); 2803 if (variants[cvars] == DEBUG_METHOD_VARIANT_NULL) 2804 goto fail; 2805 2806 ++cvars; 2807 } 2808 while (**pp != ';' && **pp != '\0'); 2809 2810 variants[cvars] = DEBUG_METHOD_VARIANT_NULL; 2811 2812 if (**pp != '\0') 2813 ++*pp; 2814 2815 if (c + 1 >= alloc) 2816 { 2817 alloc += 10; 2818 methods = ((debug_method *) 2819 xrealloc (methods, alloc * sizeof *methods)); 2820 } 2821 2822 methods[c] = debug_make_method (dhandle, name, variants); 2823 2824 ++c; 2825 } 2826 2827 if (methods != NULL) 2828 methods[c] = DEBUG_METHOD_NULL; 2829 2830 *retp = methods; 2831 2832 return TRUE; 2833 2834 fail: 2835 if (name != NULL) 2836 free (name); 2837 if (variants != NULL) 2838 free (variants); 2839 if (argtypes != NULL) 2840 free (argtypes); 2841 return FALSE; 2842 } 2843 2844 /* Parse a string representing argument types for a method. Stabs 2845 tries to save space by packing argument types into a mangled 2846 string. This string should give us enough information to extract 2847 both argument types and the physical name of the function, given 2848 the tag name. */ 2849 2850 static debug_type 2851 parse_stab_argtypes (void *dhandle, struct stab_handle *info, 2852 debug_type class_type, const char *fieldname, 2853 const char *tagname, debug_type return_type, 2854 const char *argtypes, bfd_boolean constp, 2855 bfd_boolean volatilep, const char **pphysname) 2856 { 2857 bfd_boolean is_full_physname_constructor; 2858 bfd_boolean is_constructor; 2859 bfd_boolean is_destructor; 2860 bfd_boolean is_v3; 2861 debug_type *args; 2862 bfd_boolean varargs; 2863 unsigned int physname_len = 0; 2864 2865 /* Constructors are sometimes handled specially. */ 2866 is_full_physname_constructor = ((argtypes[0] == '_' 2867 && argtypes[1] == '_' 2868 && (ISDIGIT (argtypes[2]) 2869 || argtypes[2] == 'Q' 2870 || argtypes[2] == 't')) 2871 || CONST_STRNEQ (argtypes, "__ct")); 2872 2873 is_constructor = (is_full_physname_constructor 2874 || (tagname != NULL 2875 && strcmp (fieldname, tagname) == 0)); 2876 is_destructor = ((argtypes[0] == '_' 2877 && (argtypes[1] == '$' || argtypes[1] == '.') 2878 && argtypes[2] == '_') 2879 || CONST_STRNEQ (argtypes, "__dt")); 2880 is_v3 = argtypes[0] == '_' && argtypes[1] == 'Z'; 2881 2882 if (is_destructor || is_full_physname_constructor || is_v3) 2883 *pphysname = argtypes; 2884 else 2885 { 2886 unsigned int len; 2887 const char *const_prefix; 2888 const char *volatile_prefix; 2889 char buf[20]; 2890 unsigned int mangled_name_len; 2891 char *physname; 2892 2893 len = tagname == NULL ? 0 : strlen (tagname); 2894 const_prefix = constp ? "C" : ""; 2895 volatile_prefix = volatilep ? "V" : ""; 2896 2897 if (len == 0) 2898 sprintf (buf, "__%s%s", const_prefix, volatile_prefix); 2899 else if (tagname != NULL && strchr (tagname, '<') != NULL) 2900 { 2901 /* Template methods are fully mangled. */ 2902 sprintf (buf, "__%s%s", const_prefix, volatile_prefix); 2903 tagname = NULL; 2904 len = 0; 2905 } 2906 else 2907 sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); 2908 2909 mangled_name_len = ((is_constructor ? 0 : strlen (fieldname)) 2910 + strlen (buf) 2911 + len 2912 + strlen (argtypes) 2913 + 1); 2914 2915 if (fieldname[0] == 'o' 2916 && fieldname[1] == 'p' 2917 && (fieldname[2] == '$' || fieldname[2] == '.')) 2918 { 2919 const char *opname; 2920 2921 opname = cplus_mangle_opname (fieldname + 3, 0); 2922 if (opname == NULL) 2923 { 2924 fprintf (stderr, _("No mangling for \"%s\"\n"), fieldname); 2925 return DEBUG_TYPE_NULL; 2926 } 2927 mangled_name_len += strlen (opname); 2928 physname = (char *) xmalloc (mangled_name_len); 2929 strncpy (physname, fieldname, 3); 2930 strcpy (physname + 3, opname); 2931 } 2932 else 2933 { 2934 physname = (char *) xmalloc (mangled_name_len); 2935 if (is_constructor) 2936 physname[0] = '\0'; 2937 else 2938 strcpy (physname, fieldname); 2939 } 2940 2941 physname_len = strlen (physname); 2942 strcat (physname, buf); 2943 if (tagname != NULL) 2944 strcat (physname, tagname); 2945 strcat (physname, argtypes); 2946 2947 *pphysname = physname; 2948 } 2949 2950 if (*argtypes == '\0' || is_destructor) 2951 { 2952 args = (debug_type *) xmalloc (sizeof *args); 2953 *args = NULL; 2954 return debug_make_method_type (dhandle, return_type, class_type, args, 2955 FALSE); 2956 } 2957 2958 args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs, physname_len); 2959 if (args == NULL) 2960 return DEBUG_TYPE_NULL; 2961 2962 return debug_make_method_type (dhandle, return_type, class_type, args, 2963 varargs); 2964 } 2965 2966 /* The tail end of stabs for C++ classes that contain a virtual function 2967 pointer contains a tilde, a %, and a type number. 2968 The type number refers to the base class (possibly this class itself) which 2969 contains the vtable pointer for the current class. 2970 2971 This function is called when we have parsed all the method declarations, 2972 so we can look for the vptr base class info. */ 2973 2974 static bfd_boolean 2975 parse_stab_tilde_field (void *dhandle, struct stab_handle *info, 2976 const char **pp, const int *typenums, 2977 debug_type *retvptrbase, bfd_boolean *retownvptr) 2978 { 2979 const char *orig; 2980 const char *hold; 2981 int vtypenums[2]; 2982 2983 *retvptrbase = DEBUG_TYPE_NULL; 2984 *retownvptr = FALSE; 2985 2986 orig = *pp; 2987 2988 /* If we are positioned at a ';', then skip it. */ 2989 if (**pp == ';') 2990 ++*pp; 2991 2992 if (**pp != '~') 2993 return TRUE; 2994 2995 ++*pp; 2996 2997 if (**pp == '=' || **pp == '+' || **pp == '-') 2998 { 2999 /* Obsolete flags that used to indicate the presence of 3000 constructors and/or destructors. */ 3001 ++*pp; 3002 } 3003 3004 if (**pp != '%') 3005 return TRUE; 3006 3007 ++*pp; 3008 3009 hold = *pp; 3010 3011 /* The next number is the type number of the base class (possibly 3012 our own class) which supplies the vtable for this class. */ 3013 if (! parse_stab_type_number (pp, vtypenums)) 3014 return FALSE; 3015 3016 if (vtypenums[0] == typenums[0] 3017 && vtypenums[1] == typenums[1]) 3018 *retownvptr = TRUE; 3019 else 3020 { 3021 debug_type vtype; 3022 const char *p; 3023 3024 *pp = hold; 3025 3026 vtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, 3027 (debug_type **) NULL); 3028 for (p = *pp; *p != ';' && *p != '\0'; p++) 3029 ; 3030 if (*p != ';') 3031 { 3032 bad_stab (orig); 3033 return FALSE; 3034 } 3035 3036 *retvptrbase = vtype; 3037 3038 *pp = p + 1; 3039 } 3040 3041 return TRUE; 3042 } 3043 3044 /* Read a definition of an array type. */ 3045 3046 static debug_type 3047 parse_stab_array_type (void *dhandle, struct stab_handle *info, 3048 const char **pp, bfd_boolean stringp) 3049 { 3050 const char *orig; 3051 const char *p; 3052 int typenums[2]; 3053 debug_type index_type; 3054 bfd_boolean adjustable; 3055 bfd_signed_vma lower, upper; 3056 debug_type element_type; 3057 3058 /* Format of an array type: 3059 "ar<index type>;lower;upper;<array_contents_type>". 3060 OS9000: "arlower,upper;<array_contents_type>". 3061 3062 Fortran adjustable arrays use Adigits or Tdigits for lower or upper; 3063 for these, produce a type like float[][]. */ 3064 3065 orig = *pp; 3066 3067 /* FIXME: gdb checks os9k_stabs here. */ 3068 3069 /* If the index type is type 0, we take it as int. */ 3070 p = *pp; 3071 if (! parse_stab_type_number (&p, typenums)) 3072 return DEBUG_TYPE_NULL; 3073 if (typenums[0] == 0 && typenums[1] == 0 && **pp != '=') 3074 { 3075 index_type = debug_find_named_type (dhandle, "int"); 3076 if (index_type == DEBUG_TYPE_NULL) 3077 { 3078 index_type = debug_make_int_type (dhandle, 4, FALSE); 3079 if (index_type == DEBUG_TYPE_NULL) 3080 return DEBUG_TYPE_NULL; 3081 } 3082 *pp = p; 3083 } 3084 else 3085 { 3086 index_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, 3087 (debug_type **) NULL); 3088 } 3089 3090 if (**pp != ';') 3091 { 3092 bad_stab (orig); 3093 return DEBUG_TYPE_NULL; 3094 } 3095 ++*pp; 3096 3097 adjustable = FALSE; 3098 3099 if (! ISDIGIT (**pp) && **pp != '-') 3100 { 3101 ++*pp; 3102 adjustable = TRUE; 3103 } 3104 3105 lower = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL); 3106 if (**pp != ';') 3107 { 3108 bad_stab (orig); 3109 return DEBUG_TYPE_NULL; 3110 } 3111 ++*pp; 3112 3113 if (! ISDIGIT (**pp) && **pp != '-') 3114 { 3115 ++*pp; 3116 adjustable = TRUE; 3117 } 3118 3119 upper = (bfd_signed_vma) parse_number (pp, (bfd_boolean *) NULL); 3120 if (**pp != ';') 3121 { 3122 bad_stab (orig); 3123 return DEBUG_TYPE_NULL; 3124 } 3125 ++*pp; 3126 3127 element_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, 3128 (debug_type **) NULL); 3129 if (element_type == DEBUG_TYPE_NULL) 3130 return DEBUG_TYPE_NULL; 3131 3132 if (adjustable) 3133 { 3134 lower = 0; 3135 upper = -1; 3136 } 3137 3138 return debug_make_array_type (dhandle, element_type, index_type, lower, 3139 upper, stringp); 3140 } 3141 3142 /* This struct holds information about files we have seen using 3143 N_BINCL. */ 3144 3145 struct bincl_file 3146 { 3147 /* The next N_BINCL file. */ 3148 struct bincl_file *next; 3149 /* The next N_BINCL on the stack. */ 3150 struct bincl_file *next_stack; 3151 /* The file name. */ 3152 const char *name; 3153 /* The hash value. */ 3154 bfd_vma hash; 3155 /* The file index. */ 3156 unsigned int file; 3157 /* The list of types defined in this file. */ 3158 struct stab_types *file_types; 3159 }; 3160 3161 /* Start a new N_BINCL file, pushing it onto the stack. */ 3162 3163 static void 3164 push_bincl (struct stab_handle *info, const char *name, bfd_vma hash) 3165 { 3166 struct bincl_file *n; 3167 3168 n = (struct bincl_file *) xmalloc (sizeof *n); 3169 n->next = info->bincl_list; 3170 n->next_stack = info->bincl_stack; 3171 n->name = name; 3172 n->hash = hash; 3173 n->file = info->files; 3174 n->file_types = NULL; 3175 info->bincl_list = n; 3176 info->bincl_stack = n; 3177 3178 ++info->files; 3179 info->file_types = ((struct stab_types **) 3180 xrealloc (info->file_types, 3181 (info->files 3182 * sizeof *info->file_types))); 3183 info->file_types[n->file] = NULL; 3184 } 3185 3186 /* Finish an N_BINCL file, at an N_EINCL, popping the name off the 3187 stack. */ 3188 3189 static const char * 3190 pop_bincl (struct stab_handle *info) 3191 { 3192 struct bincl_file *o; 3193 3194 o = info->bincl_stack; 3195 if (o == NULL) 3196 return info->main_filename; 3197 info->bincl_stack = o->next_stack; 3198 3199 o->file_types = info->file_types[o->file]; 3200 3201 if (info->bincl_stack == NULL) 3202 return info->main_filename; 3203 return info->bincl_stack->name; 3204 } 3205 3206 /* Handle an N_EXCL: get the types from the corresponding N_BINCL. */ 3207 3208 static bfd_boolean 3209 find_excl (struct stab_handle *info, const char *name, bfd_vma hash) 3210 { 3211 struct bincl_file *l; 3212 3213 ++info->files; 3214 info->file_types = ((struct stab_types **) 3215 xrealloc (info->file_types, 3216 (info->files 3217 * sizeof *info->file_types))); 3218 3219 for (l = info->bincl_list; l != NULL; l = l->next) 3220 if (l->hash == hash && strcmp (l->name, name) == 0) 3221 break; 3222 if (l == NULL) 3223 { 3224 warn_stab (name, _("Undefined N_EXCL")); 3225 info->file_types[info->files - 1] = NULL; 3226 return TRUE; 3227 } 3228 3229 info->file_types[info->files - 1] = l->file_types; 3230 3231 return TRUE; 3232 } 3233 3234 /* Handle a variable definition. gcc emits variable definitions for a 3235 block before the N_LBRAC, so we must hold onto them until we see 3236 it. The SunPRO compiler emits variable definitions after the 3237 N_LBRAC, so we can call debug_record_variable immediately. */ 3238 3239 static bfd_boolean 3240 stab_record_variable (void *dhandle, struct stab_handle *info, 3241 const char *name, debug_type type, 3242 enum debug_var_kind kind, bfd_vma val) 3243 { 3244 struct stab_pending_var *v; 3245 3246 if ((kind == DEBUG_GLOBAL || kind == DEBUG_STATIC) 3247 || ! info->within_function 3248 || (info->gcc_compiled == 0 && info->n_opt_found)) 3249 return debug_record_variable (dhandle, name, type, kind, val); 3250 3251 v = (struct stab_pending_var *) xmalloc (sizeof *v); 3252 memset (v, 0, sizeof *v); 3253 3254 v->next = info->pending; 3255 v->name = name; 3256 v->type = type; 3257 v->kind = kind; 3258 v->val = val; 3259 info->pending = v; 3260 3261 return TRUE; 3262 } 3263 3264 /* Emit pending variable definitions. This is called after we see the 3265 N_LBRAC that starts the block. */ 3266 3267 static bfd_boolean 3268 stab_emit_pending_vars (void *dhandle, struct stab_handle *info) 3269 { 3270 struct stab_pending_var *v; 3271 3272 v = info->pending; 3273 while (v != NULL) 3274 { 3275 struct stab_pending_var *next; 3276 3277 if (! debug_record_variable (dhandle, v->name, v->type, v->kind, v->val)) 3278 return FALSE; 3279 3280 next = v->next; 3281 free (v); 3282 v = next; 3283 } 3284 3285 info->pending = NULL; 3286 3287 return TRUE; 3288 } 3289 3290 /* Find the slot for a type in the database. */ 3291 3292 static debug_type * 3293 stab_find_slot (struct stab_handle *info, const int *typenums) 3294 { 3295 int filenum; 3296 int tindex; 3297 struct stab_types **ps; 3298 3299 filenum = typenums[0]; 3300 tindex = typenums[1]; 3301 3302 if (filenum < 0 || (unsigned int) filenum >= info->files) 3303 { 3304 fprintf (stderr, _("Type file number %d out of range\n"), filenum); 3305 return NULL; 3306 } 3307 if (tindex < 0) 3308 { 3309 fprintf (stderr, _("Type index number %d out of range\n"), tindex); 3310 return NULL; 3311 } 3312 3313 ps = info->file_types + filenum; 3314 3315 while (tindex >= STAB_TYPES_SLOTS) 3316 { 3317 if (*ps == NULL) 3318 { 3319 *ps = (struct stab_types *) xmalloc (sizeof **ps); 3320 memset (*ps, 0, sizeof **ps); 3321 } 3322 ps = &(*ps)->next; 3323 tindex -= STAB_TYPES_SLOTS; 3324 } 3325 if (*ps == NULL) 3326 { 3327 *ps = (struct stab_types *) xmalloc (sizeof **ps); 3328 memset (*ps, 0, sizeof **ps); 3329 } 3330 3331 return (*ps)->types + tindex; 3332 } 3333 3334 /* Find a type given a type number. If the type has not been 3335 allocated yet, create an indirect type. */ 3336 3337 static debug_type 3338 stab_find_type (void *dhandle, struct stab_handle *info, const int *typenums) 3339 { 3340 debug_type *slot; 3341 3342 if (typenums[0] == 0 && typenums[1] < 0) 3343 { 3344 /* A negative type number indicates an XCOFF builtin type. */ 3345 return stab_xcoff_builtin_type (dhandle, info, typenums[1]); 3346 } 3347 3348 slot = stab_find_slot (info, typenums); 3349 if (slot == NULL) 3350 return DEBUG_TYPE_NULL; 3351 3352 if (*slot == DEBUG_TYPE_NULL) 3353 return debug_make_indirect_type (dhandle, slot, (const char *) NULL); 3354 3355 return *slot; 3356 } 3357 3358 /* Record that a given type number refers to a given type. */ 3359 3360 static bfd_boolean 3361 stab_record_type (void *dhandle ATTRIBUTE_UNUSED, struct stab_handle *info, 3362 const int *typenums, debug_type type) 3363 { 3364 debug_type *slot; 3365 3366 slot = stab_find_slot (info, typenums); 3367 if (slot == NULL) 3368 return FALSE; 3369 3370 /* gdb appears to ignore type redefinitions, so we do as well. */ 3371 3372 *slot = type; 3373 3374 return TRUE; 3375 } 3376 3377 /* Return an XCOFF builtin type. */ 3378 3379 static debug_type 3380 stab_xcoff_builtin_type (void *dhandle, struct stab_handle *info, 3381 int typenum) 3382 { 3383 debug_type rettype; 3384 const char *name; 3385 3386 if (typenum >= 0 || typenum < -XCOFF_TYPE_COUNT) 3387 { 3388 fprintf (stderr, _("Unrecognized XCOFF type %d\n"), typenum); 3389 return DEBUG_TYPE_NULL; 3390 } 3391 if (info->xcoff_types[-typenum] != NULL) 3392 return info->xcoff_types[-typenum]; 3393 3394 switch (-typenum) 3395 { 3396 case 1: 3397 /* The size of this and all the other types are fixed, defined 3398 by the debugging format. */ 3399 name = "int"; 3400 rettype = debug_make_int_type (dhandle, 4, FALSE); 3401 break; 3402 case 2: 3403 name = "char"; 3404 rettype = debug_make_int_type (dhandle, 1, FALSE); 3405 break; 3406 case 3: 3407 name = "short"; 3408 rettype = debug_make_int_type (dhandle, 2, FALSE); 3409 break; 3410 case 4: 3411 name = "long"; 3412 rettype = debug_make_int_type (dhandle, 4, FALSE); 3413 break; 3414 case 5: 3415 name = "unsigned char"; 3416 rettype = debug_make_int_type (dhandle, 1, TRUE); 3417 break; 3418 case 6: 3419 name = "signed char"; 3420 rettype = debug_make_int_type (dhandle, 1, FALSE); 3421 break; 3422 case 7: 3423 name = "unsigned short"; 3424 rettype = debug_make_int_type (dhandle, 2, TRUE); 3425 break; 3426 case 8: 3427 name = "unsigned int"; 3428 rettype = debug_make_int_type (dhandle, 4, TRUE); 3429 break; 3430 case 9: 3431 name = "unsigned"; 3432 rettype = debug_make_int_type (dhandle, 4, TRUE); 3433 case 10: 3434 name = "unsigned long"; 3435 rettype = debug_make_int_type (dhandle, 4, TRUE); 3436 break; 3437 case 11: 3438 name = "void"; 3439 rettype = debug_make_void_type (dhandle); 3440 break; 3441 case 12: 3442 /* IEEE single precision (32 bit). */ 3443 name = "float"; 3444 rettype = debug_make_float_type (dhandle, 4); 3445 break; 3446 case 13: 3447 /* IEEE double precision (64 bit). */ 3448 name = "double"; 3449 rettype = debug_make_float_type (dhandle, 8); 3450 break; 3451 case 14: 3452 /* This is an IEEE double on the RS/6000, and different machines 3453 with different sizes for "long double" should use different 3454 negative type numbers. See stabs.texinfo. */ 3455 name = "long double"; 3456 rettype = debug_make_float_type (dhandle, 8); 3457 break; 3458 case 15: 3459 name = "integer"; 3460 rettype = debug_make_int_type (dhandle, 4, FALSE); 3461 break; 3462 case 16: 3463 name = "boolean"; 3464 rettype = debug_make_bool_type (dhandle, 4); 3465 break; 3466 case 17: 3467 name = "short real"; 3468 rettype = debug_make_float_type (dhandle, 4); 3469 break; 3470 case 18: 3471 name = "real"; 3472 rettype = debug_make_float_type (dhandle, 8); 3473 break; 3474 case 19: 3475 /* FIXME */ 3476 name = "stringptr"; 3477 rettype = NULL; 3478 break; 3479 case 20: 3480 /* FIXME */ 3481 name = "character"; 3482 rettype = debug_make_int_type (dhandle, 1, TRUE); 3483 break; 3484 case 21: 3485 name = "logical*1"; 3486 rettype = debug_make_bool_type (dhandle, 1); 3487 break; 3488 case 22: 3489 name = "logical*2"; 3490 rettype = debug_make_bool_type (dhandle, 2); 3491 break; 3492 case 23: 3493 name = "logical*4"; 3494 rettype = debug_make_bool_type (dhandle, 4); 3495 break; 3496 case 24: 3497 name = "logical"; 3498 rettype = debug_make_bool_type (dhandle, 4); 3499 break; 3500 case 25: 3501 /* Complex type consisting of two IEEE single precision values. */ 3502 name = "complex"; 3503 rettype = debug_make_complex_type (dhandle, 8); 3504 break; 3505 case 26: 3506 /* Complex type consisting of two IEEE double precision values. */ 3507 name = "double complex"; 3508 rettype = debug_make_complex_type (dhandle, 16); 3509 break; 3510 case 27: 3511 name = "integer*1"; 3512 rettype = debug_make_int_type (dhandle, 1, FALSE); 3513 break; 3514 case 28: 3515 name = "integer*2"; 3516 rettype = debug_make_int_type (dhandle, 2, FALSE); 3517 break; 3518 case 29: 3519 name = "integer*4"; 3520 rettype = debug_make_int_type (dhandle, 4, FALSE); 3521 break; 3522 case 30: 3523 /* FIXME */ 3524 name = "wchar"; 3525 rettype = debug_make_int_type (dhandle, 2, FALSE); 3526 break; 3527 case 31: 3528 name = "long long"; 3529 rettype = debug_make_int_type (dhandle, 8, FALSE); 3530 break; 3531 case 32: 3532 name = "unsigned long long"; 3533 rettype = debug_make_int_type (dhandle, 8, TRUE); 3534 break; 3535 case 33: 3536 name = "logical*8"; 3537 rettype = debug_make_bool_type (dhandle, 8); 3538 break; 3539 case 34: 3540 name = "integer*8"; 3541 rettype = debug_make_int_type (dhandle, 8, FALSE); 3542 break; 3543 default: 3544 abort (); 3545 } 3546 3547 rettype = debug_name_type (dhandle, name, rettype); 3548 3549 info->xcoff_types[-typenum] = rettype; 3550 3551 return rettype; 3552 } 3553 3554 /* Find or create a tagged type. */ 3555 3556 static debug_type 3557 stab_find_tagged_type (void *dhandle, struct stab_handle *info, 3558 const char *p, int len, enum debug_type_kind kind) 3559 { 3560 char *name; 3561 debug_type dtype; 3562 struct stab_tag *st; 3563 3564 name = savestring (p, len); 3565 3566 /* We pass DEBUG_KIND_ILLEGAL because we want all tags in the same 3567 namespace. This is right for C, and I don't know how to handle 3568 other languages. FIXME. */ 3569 dtype = debug_find_tagged_type (dhandle, name, DEBUG_KIND_ILLEGAL); 3570 if (dtype != DEBUG_TYPE_NULL) 3571 { 3572 free (name); 3573 return dtype; 3574 } 3575 3576 /* We need to allocate an entry on the undefined tag list. */ 3577 for (st = info->tags; st != NULL; st = st->next) 3578 { 3579 if (st->name[0] == name[0] 3580 && strcmp (st->name, name) == 0) 3581 { 3582 if (st->kind == DEBUG_KIND_ILLEGAL) 3583 st->kind = kind; 3584 free (name); 3585 break; 3586 } 3587 } 3588 if (st == NULL) 3589 { 3590 st = (struct stab_tag *) xmalloc (sizeof *st); 3591 memset (st, 0, sizeof *st); 3592 3593 st->next = info->tags; 3594 st->name = name; 3595 st->kind = kind; 3596 st->slot = DEBUG_TYPE_NULL; 3597 st->type = debug_make_indirect_type (dhandle, &st->slot, name); 3598 info->tags = st; 3599 } 3600 3601 return st->type; 3602 } 3603 3604 /* In order to get the correct argument types for a stubbed method, we 3605 need to extract the argument types from a C++ mangled string. 3606 Since the argument types can refer back to the return type, this 3607 means that we must demangle the entire physical name. In gdb this 3608 is done by calling cplus_demangle and running the results back 3609 through the C++ expression parser. Since we have no expression 3610 parser, we must duplicate much of the work of cplus_demangle here. 3611 3612 We assume that GNU style demangling is used, since this is only 3613 done for method stubs, and only g++ should output that form of 3614 debugging information. */ 3615 3616 /* This structure is used to hold a pointer to type information which 3617 demangling a string. */ 3618 3619 struct stab_demangle_typestring 3620 { 3621 /* The start of the type. This is not null terminated. */ 3622 const char *typestring; 3623 /* The length of the type. */ 3624 unsigned int len; 3625 }; 3626 3627 /* This structure is used to hold information while demangling a 3628 string. */ 3629 3630 struct stab_demangle_info 3631 { 3632 /* The debugging information handle. */ 3633 void *dhandle; 3634 /* The stab information handle. */ 3635 struct stab_handle *info; 3636 /* The array of arguments we are building. */ 3637 debug_type *args; 3638 /* Whether the method takes a variable number of arguments. */ 3639 bfd_boolean varargs; 3640 /* The array of types we have remembered. */ 3641 struct stab_demangle_typestring *typestrings; 3642 /* The number of typestrings. */ 3643 unsigned int typestring_count; 3644 /* The number of typestring slots we have allocated. */ 3645 unsigned int typestring_alloc; 3646 }; 3647 3648 static void stab_bad_demangle (const char *); 3649 static unsigned int stab_demangle_count (const char **); 3650 static bfd_boolean stab_demangle_get_count (const char **, unsigned int *); 3651 static bfd_boolean stab_demangle_prefix 3652 (struct stab_demangle_info *, const char **, unsigned int); 3653 static bfd_boolean stab_demangle_function_name 3654 (struct stab_demangle_info *, const char **, const char *); 3655 static bfd_boolean stab_demangle_signature 3656 (struct stab_demangle_info *, const char **); 3657 static bfd_boolean stab_demangle_qualified 3658 (struct stab_demangle_info *, const char **, debug_type *); 3659 static bfd_boolean stab_demangle_template 3660 (struct stab_demangle_info *, const char **, char **); 3661 static bfd_boolean stab_demangle_class 3662 (struct stab_demangle_info *, const char **, const char **); 3663 static bfd_boolean stab_demangle_args 3664 (struct stab_demangle_info *, const char **, debug_type **, bfd_boolean *); 3665 static bfd_boolean stab_demangle_arg 3666 (struct stab_demangle_info *, const char **, debug_type **, 3667 unsigned int *, unsigned int *); 3668 static bfd_boolean stab_demangle_type 3669 (struct stab_demangle_info *, const char **, debug_type *); 3670 static bfd_boolean stab_demangle_fund_type 3671 (struct stab_demangle_info *, const char **, debug_type *); 3672 static bfd_boolean stab_demangle_remember_type 3673 (struct stab_demangle_info *, const char *, int); 3674 3675 /* Warn about a bad demangling. */ 3676 3677 static void 3678 stab_bad_demangle (const char *s) 3679 { 3680 fprintf (stderr, _("bad mangled name `%s'\n"), s); 3681 } 3682 3683 /* Get a count from a stab string. */ 3684 3685 static unsigned int 3686 stab_demangle_count (const char **pp) 3687 { 3688 unsigned int count; 3689 3690 count = 0; 3691 while (ISDIGIT (**pp)) 3692 { 3693 count *= 10; 3694 count += **pp - '0'; 3695 ++*pp; 3696 } 3697 return count; 3698 } 3699 3700 /* Require a count in a string. The count may be multiple digits, in 3701 which case it must end in an underscore. */ 3702 3703 static bfd_boolean 3704 stab_demangle_get_count (const char **pp, unsigned int *pi) 3705 { 3706 if (! ISDIGIT (**pp)) 3707 return FALSE; 3708 3709 *pi = **pp - '0'; 3710 ++*pp; 3711 if (ISDIGIT (**pp)) 3712 { 3713 unsigned int count; 3714 const char *p; 3715 3716 count = *pi; 3717 p = *pp; 3718 do 3719 { 3720 count *= 10; 3721 count += *p - '0'; 3722 ++p; 3723 } 3724 while (ISDIGIT (*p)); 3725 if (*p == '_') 3726 { 3727 *pp = p + 1; 3728 *pi = count; 3729 } 3730 } 3731 3732 return TRUE; 3733 } 3734 3735 /* This function demangles a physical name, returning a NULL 3736 terminated array of argument types. */ 3737 3738 static debug_type * 3739 stab_demangle_argtypes (void *dhandle, struct stab_handle *info, 3740 const char *physname, bfd_boolean *pvarargs, 3741 unsigned int physname_len) 3742 { 3743 struct stab_demangle_info minfo; 3744 3745 /* Check for the g++ V3 ABI. */ 3746 if (physname[0] == '_' && physname[1] == 'Z') 3747 return stab_demangle_v3_argtypes (dhandle, info, physname, pvarargs); 3748 3749 minfo.dhandle = dhandle; 3750 minfo.info = info; 3751 minfo.args = NULL; 3752 minfo.varargs = FALSE; 3753 minfo.typestring_alloc = 10; 3754 minfo.typestrings = ((struct stab_demangle_typestring *) 3755 xmalloc (minfo.typestring_alloc 3756 * sizeof *minfo.typestrings)); 3757 minfo.typestring_count = 0; 3758 3759 /* cplus_demangle checks for special GNU mangled forms, but we can't 3760 see any of them in mangled method argument types. */ 3761 3762 if (! stab_demangle_prefix (&minfo, &physname, physname_len)) 3763 goto error_return; 3764 3765 if (*physname != '\0') 3766 { 3767 if (! stab_demangle_signature (&minfo, &physname)) 3768 goto error_return; 3769 } 3770 3771 free (minfo.typestrings); 3772 minfo.typestrings = NULL; 3773 3774 if (minfo.args == NULL) 3775 fprintf (stderr, _("no argument types in mangled string\n")); 3776 3777 *pvarargs = minfo.varargs; 3778 return minfo.args; 3779 3780 error_return: 3781 if (minfo.typestrings != NULL) 3782 free (minfo.typestrings); 3783 return NULL; 3784 } 3785 3786 /* Demangle the prefix of the mangled name. */ 3787 3788 static bfd_boolean 3789 stab_demangle_prefix (struct stab_demangle_info *minfo, const char **pp, 3790 unsigned int physname_len) 3791 { 3792 const char *scan; 3793 unsigned int i; 3794 3795 /* cplus_demangle checks for global constructors and destructors, 3796 but we can't see them in mangled argument types. */ 3797 3798 if (physname_len) 3799 scan = *pp + physname_len; 3800 else 3801 { 3802 /* Look for `__'. */ 3803 scan = *pp; 3804 do 3805 scan = strchr (scan, '_'); 3806 while (scan != NULL && *++scan != '_'); 3807 3808 if (scan == NULL) 3809 { 3810 stab_bad_demangle (*pp); 3811 return FALSE; 3812 } 3813 3814 --scan; 3815 3816 /* We found `__'; move ahead to the last contiguous `__' pair. */ 3817 i = strspn (scan, "_"); 3818 if (i > 2) 3819 scan += i - 2; 3820 } 3821 3822 if (scan == *pp 3823 && (ISDIGIT (scan[2]) 3824 || scan[2] == 'Q' 3825 || scan[2] == 't')) 3826 { 3827 /* This is a GNU style constructor name. */ 3828 *pp = scan + 2; 3829 return TRUE; 3830 } 3831 else if (scan == *pp 3832 && ! ISDIGIT (scan[2]) 3833 && scan[2] != 't') 3834 { 3835 /* Look for the `__' that separates the prefix from the 3836 signature. */ 3837 while (*scan == '_') 3838 ++scan; 3839 scan = strstr (scan, "__"); 3840 if (scan == NULL || scan[2] == '\0') 3841 { 3842 stab_bad_demangle (*pp); 3843 return FALSE; 3844 } 3845 3846 return stab_demangle_function_name (minfo, pp, scan); 3847 } 3848 else if (scan[2] != '\0') 3849 { 3850 /* The name doesn't start with `__', but it does contain `__'. */ 3851 return stab_demangle_function_name (minfo, pp, scan); 3852 } 3853 else 3854 { 3855 stab_bad_demangle (*pp); 3856 return FALSE; 3857 } 3858 /*NOTREACHED*/ 3859 } 3860 3861 /* Demangle a function name prefix. The scan argument points to the 3862 double underscore which separates the function name from the 3863 signature. */ 3864 3865 static bfd_boolean 3866 stab_demangle_function_name (struct stab_demangle_info *minfo, 3867 const char **pp, const char *scan) 3868 { 3869 const char *name; 3870 3871 /* The string from *pp to scan is the name of the function. We 3872 don't care about the name, since we just looking for argument 3873 types. However, for conversion operators, the name may include a 3874 type which we must remember in order to handle backreferences. */ 3875 3876 name = *pp; 3877 *pp = scan + 2; 3878 3879 if (*pp - name >= 5 3880 && CONST_STRNEQ (name, "type") 3881 && (name[4] == '$' || name[4] == '.')) 3882 { 3883 const char *tem; 3884 3885 /* This is a type conversion operator. */ 3886 tem = name + 5; 3887 if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) 3888 return FALSE; 3889 } 3890 else if (name[0] == '_' 3891 && name[1] == '_' 3892 && name[2] == 'o' 3893 && name[3] == 'p') 3894 { 3895 const char *tem; 3896 3897 /* This is a type conversion operator. */ 3898 tem = name + 4; 3899 if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) 3900 return FALSE; 3901 } 3902 3903 return TRUE; 3904 } 3905 3906 /* Demangle the signature. This is where the argument types are 3907 found. */ 3908 3909 static bfd_boolean 3910 stab_demangle_signature (struct stab_demangle_info *minfo, const char **pp) 3911 { 3912 const char *orig; 3913 bfd_boolean expect_func, func_done; 3914 const char *hold; 3915 3916 orig = *pp; 3917 3918 expect_func = FALSE; 3919 func_done = FALSE; 3920 hold = NULL; 3921 3922 while (**pp != '\0') 3923 { 3924 switch (**pp) 3925 { 3926 case 'Q': 3927 hold = *pp; 3928 if (! stab_demangle_qualified (minfo, pp, (debug_type *) NULL) 3929 || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) 3930 return FALSE; 3931 expect_func = TRUE; 3932 hold = NULL; 3933 break; 3934 3935 case 'S': 3936 /* Static member function. FIXME: Can this happen? */ 3937 if (hold == NULL) 3938 hold = *pp; 3939 ++*pp; 3940 break; 3941 3942 case 'C': 3943 /* Const member function. */ 3944 if (hold == NULL) 3945 hold = *pp; 3946 ++*pp; 3947 break; 3948 3949 case '0': case '1': case '2': case '3': case '4': 3950 case '5': case '6': case '7': case '8': case '9': 3951 if (hold == NULL) 3952 hold = *pp; 3953 if (! stab_demangle_class (minfo, pp, (const char **) NULL) 3954 || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) 3955 return FALSE; 3956 expect_func = TRUE; 3957 hold = NULL; 3958 break; 3959 3960 case 'F': 3961 /* Function. I don't know if this actually happens with g++ 3962 output. */ 3963 hold = NULL; 3964 func_done = TRUE; 3965 ++*pp; 3966 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) 3967 return FALSE; 3968 break; 3969 3970 case 't': 3971 /* Template. */ 3972 if (hold == NULL) 3973 hold = *pp; 3974 if (! stab_demangle_template (minfo, pp, (char **) NULL) 3975 || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) 3976 return FALSE; 3977 hold = NULL; 3978 expect_func = TRUE; 3979 break; 3980 3981 case '_': 3982 /* At the outermost level, we cannot have a return type 3983 specified, so if we run into another '_' at this point we 3984 are dealing with a mangled name that is either bogus, or 3985 has been mangled by some algorithm we don't know how to 3986 deal with. So just reject the entire demangling. */ 3987 stab_bad_demangle (orig); 3988 return FALSE; 3989 3990 default: 3991 /* Assume we have stumbled onto the first outermost function 3992 argument token, and start processing args. */ 3993 func_done = TRUE; 3994 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) 3995 return FALSE; 3996 break; 3997 } 3998 3999 if (expect_func) 4000 { 4001 func_done = TRUE; 4002 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) 4003 return FALSE; 4004 } 4005 } 4006 4007 if (! func_done) 4008 { 4009 /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and 4010 bar__3fooi is 'foo::bar(int)'. We get here when we find the 4011 first case, and need to ensure that the '(void)' gets added 4012 to the current declp. */ 4013 if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) 4014 return FALSE; 4015 } 4016 4017 return TRUE; 4018 } 4019 4020 /* Demangle a qualified name, such as "Q25Outer5Inner" which is the 4021 mangled form of "Outer::Inner". */ 4022 4023 static bfd_boolean 4024 stab_demangle_qualified (struct stab_demangle_info *minfo, const char **pp, 4025 debug_type *ptype) 4026 { 4027 const char *orig; 4028 const char *p; 4029 unsigned int qualifiers; 4030 debug_type context; 4031 4032 orig = *pp; 4033 4034 switch ((*pp)[1]) 4035 { 4036 case '_': 4037 /* GNU mangled name with more than 9 classes. The count is 4038 preceded by an underscore (to distinguish it from the <= 9 4039 case) and followed by an underscore. */ 4040 p = *pp + 2; 4041 if (! ISDIGIT (*p) || *p == '0') 4042 { 4043 stab_bad_demangle (orig); 4044 return FALSE; 4045 } 4046 qualifiers = atoi (p); 4047 while (ISDIGIT (*p)) 4048 ++p; 4049 if (*p != '_') 4050 { 4051 stab_bad_demangle (orig); 4052 return FALSE; 4053 } 4054 *pp = p + 1; 4055 break; 4056 4057 case '1': case '2': case '3': case '4': case '5': 4058 case '6': case '7': case '8': case '9': 4059 qualifiers = (*pp)[1] - '0'; 4060 /* Skip an optional underscore after the count. */ 4061 if ((*pp)[2] == '_') 4062 ++*pp; 4063 *pp += 2; 4064 break; 4065 4066 case '0': 4067 default: 4068 stab_bad_demangle (orig); 4069 return FALSE; 4070 } 4071 4072 context = DEBUG_TYPE_NULL; 4073 4074 /* Pick off the names. */ 4075 while (qualifiers-- > 0) 4076 { 4077 if (**pp == '_') 4078 ++*pp; 4079 if (**pp == 't') 4080 { 4081 char *name; 4082 4083 if (! stab_demangle_template (minfo, pp, 4084 ptype != NULL ? &name : NULL)) 4085 return FALSE; 4086 4087 if (ptype != NULL) 4088 { 4089 context = stab_find_tagged_type (minfo->dhandle, minfo->info, 4090 name, strlen (name), 4091 DEBUG_KIND_CLASS); 4092 free (name); 4093 if (context == DEBUG_TYPE_NULL) 4094 return FALSE; 4095 } 4096 } 4097 else 4098 { 4099 unsigned int len; 4100 4101 len = stab_demangle_count (pp); 4102 if (strlen (*pp) < len) 4103 { 4104 stab_bad_demangle (orig); 4105 return FALSE; 4106 } 4107 4108 if (ptype != NULL) 4109 { 4110 const debug_field *fields; 4111 4112 fields = NULL; 4113 if (context != DEBUG_TYPE_NULL) 4114 fields = debug_get_fields (minfo->dhandle, context); 4115 4116 context = DEBUG_TYPE_NULL; 4117 4118 if (fields != NULL) 4119 { 4120 char *name; 4121 4122 /* Try to find the type by looking through the 4123 fields of context until we find a field with the 4124 same type. This ought to work for a class 4125 defined within a class, but it won't work for, 4126 e.g., an enum defined within a class. stabs does 4127 not give us enough information to figure out the 4128 latter case. */ 4129 4130 name = savestring (*pp, len); 4131 4132 for (; *fields != DEBUG_FIELD_NULL; fields++) 4133 { 4134 debug_type ft; 4135 const char *dn; 4136 4137 ft = debug_get_field_type (minfo->dhandle, *fields); 4138 if (ft == NULL) 4139 { 4140 free (name); 4141 return FALSE; 4142 } 4143 dn = debug_get_type_name (minfo->dhandle, ft); 4144 if (dn != NULL && strcmp (dn, name) == 0) 4145 { 4146 context = ft; 4147 break; 4148 } 4149 } 4150 4151 free (name); 4152 } 4153 4154 if (context == DEBUG_TYPE_NULL) 4155 { 4156 /* We have to fall back on finding the type by name. 4157 If there are more types to come, then this must 4158 be a class. Otherwise, it could be anything. */ 4159 4160 if (qualifiers == 0) 4161 { 4162 char *name; 4163 4164 name = savestring (*pp, len); 4165 context = debug_find_named_type (minfo->dhandle, 4166 name); 4167 free (name); 4168 } 4169 4170 if (context == DEBUG_TYPE_NULL) 4171 { 4172 context = stab_find_tagged_type (minfo->dhandle, 4173 minfo->info, 4174 *pp, len, 4175 (qualifiers == 0 4176 ? DEBUG_KIND_ILLEGAL 4177 : DEBUG_KIND_CLASS)); 4178 if (context == DEBUG_TYPE_NULL) 4179 return FALSE; 4180 } 4181 } 4182 } 4183 4184 *pp += len; 4185 } 4186 } 4187 4188 if (ptype != NULL) 4189 *ptype = context; 4190 4191 return TRUE; 4192 } 4193 4194 /* Demangle a template. If PNAME is not NULL, this sets *PNAME to a 4195 string representation of the template. */ 4196 4197 static bfd_boolean 4198 stab_demangle_template (struct stab_demangle_info *minfo, const char **pp, 4199 char **pname) 4200 { 4201 const char *orig; 4202 unsigned int r, i; 4203 4204 orig = *pp; 4205 4206 ++*pp; 4207 4208 /* Skip the template name. */ 4209 r = stab_demangle_count (pp); 4210 if (r == 0 || strlen (*pp) < r) 4211 { 4212 stab_bad_demangle (orig); 4213 return FALSE; 4214 } 4215 *pp += r; 4216 4217 /* Get the size of the parameter list. */ 4218 if (stab_demangle_get_count (pp, &r) == 0) 4219 { 4220 stab_bad_demangle (orig); 4221 return FALSE; 4222 } 4223 4224 for (i = 0; i < r; i++) 4225 { 4226 if (**pp == 'Z') 4227 { 4228 /* This is a type parameter. */ 4229 ++*pp; 4230 if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) 4231 return FALSE; 4232 } 4233 else 4234 { 4235 const char *old_p; 4236 bfd_boolean pointerp, realp, integralp, charp, boolp; 4237 bfd_boolean done; 4238 4239 old_p = *pp; 4240 pointerp = FALSE; 4241 realp = FALSE; 4242 integralp = FALSE; 4243 charp = FALSE; 4244 boolp = FALSE; 4245 done = FALSE; 4246 4247 /* This is a value parameter. */ 4248 4249 if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) 4250 return FALSE; 4251 4252 while (*old_p != '\0' && ! done) 4253 { 4254 switch (*old_p) 4255 { 4256 case 'P': 4257 case 'p': 4258 case 'R': 4259 pointerp = TRUE; 4260 done = TRUE; 4261 break; 4262 case 'C': /* Const. */ 4263 case 'S': /* Signed. */ 4264 case 'U': /* Unsigned. */ 4265 case 'V': /* Volatile. */ 4266 case 'F': /* Function. */ 4267 case 'M': /* Member function. */ 4268 case 'O': /* ??? */ 4269 ++old_p; 4270 break; 4271 case 'Q': /* Qualified name. */ 4272 integralp = TRUE; 4273 done = TRUE; 4274 break; 4275 case 'T': /* Remembered type. */ 4276 abort (); 4277 case 'v': /* Void. */ 4278 abort (); 4279 case 'x': /* Long long. */ 4280 case 'l': /* Long. */ 4281 case 'i': /* Int. */ 4282 case 's': /* Short. */ 4283 case 'w': /* Wchar_t. */ 4284 integralp = TRUE; 4285 done = TRUE; 4286 break; 4287 case 'b': /* Bool. */ 4288 boolp = TRUE; 4289 done = TRUE; 4290 break; 4291 case 'c': /* Char. */ 4292 charp = TRUE; 4293 done = TRUE; 4294 break; 4295 case 'r': /* Long double. */ 4296 case 'd': /* Double. */ 4297 case 'f': /* Float. */ 4298 realp = TRUE; 4299 done = TRUE; 4300 break; 4301 default: 4302 /* Assume it's a user defined integral type. */ 4303 integralp = TRUE; 4304 done = TRUE; 4305 break; 4306 } 4307 } 4308 4309 if (integralp) 4310 { 4311 if (**pp == 'm') 4312 ++*pp; 4313 while (ISDIGIT (**pp)) 4314 ++*pp; 4315 } 4316 else if (charp) 4317 { 4318 unsigned int val; 4319 4320 if (**pp == 'm') 4321 ++*pp; 4322 val = stab_demangle_count (pp); 4323 if (val == 0) 4324 { 4325 stab_bad_demangle (orig); 4326 return FALSE; 4327 } 4328 } 4329 else if (boolp) 4330 { 4331 unsigned int val; 4332 4333 val = stab_demangle_count (pp); 4334 if (val != 0 && val != 1) 4335 { 4336 stab_bad_demangle (orig); 4337 return FALSE; 4338 } 4339 } 4340 else if (realp) 4341 { 4342 if (**pp == 'm') 4343 ++*pp; 4344 while (ISDIGIT (**pp)) 4345 ++*pp; 4346 if (**pp == '.') 4347 { 4348 ++*pp; 4349 while (ISDIGIT (**pp)) 4350 ++*pp; 4351 } 4352 if (**pp == 'e') 4353 { 4354 ++*pp; 4355 while (ISDIGIT (**pp)) 4356 ++*pp; 4357 } 4358 } 4359 else if (pointerp) 4360 { 4361 unsigned int len; 4362 4363 len = stab_demangle_count (pp); 4364 if (len == 0) 4365 { 4366 stab_bad_demangle (orig); 4367 return FALSE; 4368 } 4369 *pp += len; 4370 } 4371 } 4372 } 4373 4374 /* We can translate this to a string fairly easily by invoking the 4375 regular demangling routine. */ 4376 if (pname != NULL) 4377 { 4378 char *s1, *s2, *s3, *s4 = NULL; 4379 char *from, *to; 4380 4381 s1 = savestring (orig, *pp - orig); 4382 4383 s2 = concat ("NoSuchStrinG__", s1, (const char *) NULL); 4384 4385 free (s1); 4386 4387 s3 = cplus_demangle (s2, DMGL_ANSI); 4388 4389 free (s2); 4390 4391 if (s3 != NULL) 4392 s4 = strstr (s3, "::NoSuchStrinG"); 4393 if (s3 == NULL || s4 == NULL) 4394 { 4395 stab_bad_demangle (orig); 4396 if (s3 != NULL) 4397 free (s3); 4398 return FALSE; 4399 } 4400 4401 /* Eliminating all spaces, except those between > characters, 4402 makes it more likely that the demangled name will match the 4403 name which g++ used as the structure name. */ 4404 for (from = to = s3; from != s4; ++from) 4405 if (*from != ' ' 4406 || (from[1] == '>' && from > s3 && from[-1] == '>')) 4407 *to++ = *from; 4408 4409 *pname = savestring (s3, to - s3); 4410 4411 free (s3); 4412 } 4413 4414 return TRUE; 4415 } 4416 4417 /* Demangle a class name. */ 4418 4419 static bfd_boolean 4420 stab_demangle_class (struct stab_demangle_info *minfo ATTRIBUTE_UNUSED, 4421 const char **pp, const char **pstart) 4422 { 4423 const char *orig; 4424 unsigned int n; 4425 4426 orig = *pp; 4427 4428 n = stab_demangle_count (pp); 4429 if (strlen (*pp) < n) 4430 { 4431 stab_bad_demangle (orig); 4432 return FALSE; 4433 } 4434 4435 if (pstart != NULL) 4436 *pstart = *pp; 4437 4438 *pp += n; 4439 4440 return TRUE; 4441 } 4442 4443 /* Demangle function arguments. If the pargs argument is not NULL, it 4444 is set to a NULL terminated array holding the arguments. */ 4445 4446 static bfd_boolean 4447 stab_demangle_args (struct stab_demangle_info *minfo, const char **pp, 4448 debug_type **pargs, bfd_boolean *pvarargs) 4449 { 4450 const char *orig; 4451 unsigned int alloc, count; 4452 4453 orig = *pp; 4454 4455 alloc = 10; 4456 if (pargs != NULL) 4457 { 4458 *pargs = (debug_type *) xmalloc (alloc * sizeof **pargs); 4459 *pvarargs = FALSE; 4460 } 4461 count = 0; 4462 4463 while (**pp != '_' && **pp != '\0' && **pp != 'e') 4464 { 4465 if (**pp == 'N' || **pp == 'T') 4466 { 4467 char temptype; 4468 unsigned int r, t; 4469 4470 temptype = **pp; 4471 ++*pp; 4472 4473 if (temptype == 'T') 4474 r = 1; 4475 else 4476 { 4477 if (! stab_demangle_get_count (pp, &r)) 4478 { 4479 stab_bad_demangle (orig); 4480 return FALSE; 4481 } 4482 } 4483 4484 if (! stab_demangle_get_count (pp, &t)) 4485 { 4486 stab_bad_demangle (orig); 4487 return FALSE; 4488 } 4489 4490 if (t >= minfo->typestring_count) 4491 { 4492 stab_bad_demangle (orig); 4493 return FALSE; 4494 } 4495 while (r-- > 0) 4496 { 4497 const char *tem; 4498 4499 tem = minfo->typestrings[t].typestring; 4500 if (! stab_demangle_arg (minfo, &tem, pargs, &count, &alloc)) 4501 return FALSE; 4502 } 4503 } 4504 else 4505 { 4506 if (! stab_demangle_arg (minfo, pp, pargs, &count, &alloc)) 4507 return FALSE; 4508 } 4509 } 4510 4511 if (pargs != NULL) 4512 (*pargs)[count] = DEBUG_TYPE_NULL; 4513 4514 if (**pp == 'e') 4515 { 4516 if (pargs != NULL) 4517 *pvarargs = TRUE; 4518 ++*pp; 4519 } 4520 4521 return TRUE; 4522 } 4523 4524 /* Demangle a single argument. */ 4525 4526 static bfd_boolean 4527 stab_demangle_arg (struct stab_demangle_info *minfo, const char **pp, 4528 debug_type **pargs, unsigned int *pcount, 4529 unsigned int *palloc) 4530 { 4531 const char *start; 4532 debug_type type; 4533 4534 start = *pp; 4535 if (! stab_demangle_type (minfo, pp, 4536 pargs == NULL ? (debug_type *) NULL : &type) 4537 || ! stab_demangle_remember_type (minfo, start, *pp - start)) 4538 return FALSE; 4539 4540 if (pargs != NULL) 4541 { 4542 if (type == DEBUG_TYPE_NULL) 4543 return FALSE; 4544 4545 if (*pcount + 1 >= *palloc) 4546 { 4547 *palloc += 10; 4548 *pargs = ((debug_type *) 4549 xrealloc (*pargs, *palloc * sizeof **pargs)); 4550 } 4551 (*pargs)[*pcount] = type; 4552 ++*pcount; 4553 } 4554 4555 return TRUE; 4556 } 4557 4558 /* Demangle a type. If the ptype argument is not NULL, *ptype is set 4559 to the newly allocated type. */ 4560 4561 static bfd_boolean 4562 stab_demangle_type (struct stab_demangle_info *minfo, const char **pp, 4563 debug_type *ptype) 4564 { 4565 const char *orig; 4566 4567 orig = *pp; 4568 4569 switch (**pp) 4570 { 4571 case 'P': 4572 case 'p': 4573 /* A pointer type. */ 4574 ++*pp; 4575 if (! stab_demangle_type (minfo, pp, ptype)) 4576 return FALSE; 4577 if (ptype != NULL) 4578 *ptype = debug_make_pointer_type (minfo->dhandle, *ptype); 4579 break; 4580 4581 case 'R': 4582 /* A reference type. */ 4583 ++*pp; 4584 if (! stab_demangle_type (minfo, pp, ptype)) 4585 return FALSE; 4586 if (ptype != NULL) 4587 *ptype = debug_make_reference_type (minfo->dhandle, *ptype); 4588 break; 4589 4590 case 'A': 4591 /* An array. */ 4592 { 4593 unsigned long high; 4594 4595 ++*pp; 4596 high = 0; 4597 while (**pp != '\0' && **pp != '_') 4598 { 4599 if (! ISDIGIT (**pp)) 4600 { 4601 stab_bad_demangle (orig); 4602 return FALSE; 4603 } 4604 high *= 10; 4605 high += **pp - '0'; 4606 ++*pp; 4607 } 4608 if (**pp != '_') 4609 { 4610 stab_bad_demangle (orig); 4611 return FALSE; 4612 } 4613 ++*pp; 4614 4615 if (! stab_demangle_type (minfo, pp, ptype)) 4616 return FALSE; 4617 if (ptype != NULL) 4618 { 4619 debug_type int_type; 4620 4621 int_type = debug_find_named_type (minfo->dhandle, "int"); 4622 if (int_type == NULL) 4623 int_type = debug_make_int_type (minfo->dhandle, 4, FALSE); 4624 *ptype = debug_make_array_type (minfo->dhandle, *ptype, int_type, 4625 0, high, FALSE); 4626 } 4627 } 4628 break; 4629 4630 case 'T': 4631 /* A back reference to a remembered type. */ 4632 { 4633 unsigned int i; 4634 const char *p; 4635 4636 ++*pp; 4637 if (! stab_demangle_get_count (pp, &i)) 4638 { 4639 stab_bad_demangle (orig); 4640 return FALSE; 4641 } 4642 if (i >= minfo->typestring_count) 4643 { 4644 stab_bad_demangle (orig); 4645 return FALSE; 4646 } 4647 p = minfo->typestrings[i].typestring; 4648 if (! stab_demangle_type (minfo, &p, ptype)) 4649 return FALSE; 4650 } 4651 break; 4652 4653 case 'F': 4654 /* A function. */ 4655 { 4656 debug_type *args; 4657 bfd_boolean varargs; 4658 4659 ++*pp; 4660 if (! stab_demangle_args (minfo, pp, 4661 (ptype == NULL 4662 ? (debug_type **) NULL 4663 : &args), 4664 (ptype == NULL 4665 ? (bfd_boolean *) NULL 4666 : &varargs))) 4667 return FALSE; 4668 if (**pp != '_') 4669 { 4670 /* cplus_demangle will accept a function without a return 4671 type, but I don't know when that will happen, or what 4672 to do if it does. */ 4673 stab_bad_demangle (orig); 4674 return FALSE; 4675 } 4676 ++*pp; 4677 if (! stab_demangle_type (minfo, pp, ptype)) 4678 return FALSE; 4679 if (ptype != NULL) 4680 *ptype = debug_make_function_type (minfo->dhandle, *ptype, args, 4681 varargs); 4682 4683 } 4684 break; 4685 4686 case 'M': 4687 case 'O': 4688 { 4689 bfd_boolean memberp; 4690 debug_type class_type = DEBUG_TYPE_NULL; 4691 debug_type *args; 4692 bfd_boolean varargs; 4693 unsigned int n; 4694 const char *name; 4695 4696 memberp = **pp == 'M'; 4697 args = NULL; 4698 varargs = FALSE; 4699 4700 ++*pp; 4701 if (ISDIGIT (**pp)) 4702 { 4703 n = stab_demangle_count (pp); 4704 if (strlen (*pp) < n) 4705 { 4706 stab_bad_demangle (orig); 4707 return FALSE; 4708 } 4709 name = *pp; 4710 *pp += n; 4711 4712 if (ptype != NULL) 4713 { 4714 class_type = stab_find_tagged_type (minfo->dhandle, 4715 minfo->info, 4716 name, (int) n, 4717 DEBUG_KIND_CLASS); 4718 if (class_type == DEBUG_TYPE_NULL) 4719 return FALSE; 4720 } 4721 } 4722 else if (**pp == 'Q') 4723 { 4724 if (! stab_demangle_qualified (minfo, pp, 4725 (ptype == NULL 4726 ? (debug_type *) NULL 4727 : &class_type))) 4728 return FALSE; 4729 } 4730 else 4731 { 4732 stab_bad_demangle (orig); 4733 return FALSE; 4734 } 4735 4736 if (memberp) 4737 { 4738 if (**pp == 'C') 4739 { 4740 ++*pp; 4741 } 4742 else if (**pp == 'V') 4743 { 4744 ++*pp; 4745 } 4746 if (**pp != 'F') 4747 { 4748 stab_bad_demangle (orig); 4749 return FALSE; 4750 } 4751 ++*pp; 4752 if (! stab_demangle_args (minfo, pp, 4753 (ptype == NULL 4754 ? (debug_type **) NULL 4755 : &args), 4756 (ptype == NULL 4757 ? (bfd_boolean *) NULL 4758 : &varargs))) 4759 return FALSE; 4760 } 4761 4762 if (**pp != '_') 4763 { 4764 stab_bad_demangle (orig); 4765 return FALSE; 4766 } 4767 ++*pp; 4768 4769 if (! stab_demangle_type (minfo, pp, ptype)) 4770 return FALSE; 4771 4772 if (ptype != NULL) 4773 { 4774 if (! memberp) 4775 *ptype = debug_make_offset_type (minfo->dhandle, class_type, 4776 *ptype); 4777 else 4778 { 4779 /* FIXME: We have no way to record constp or 4780 volatilep. */ 4781 *ptype = debug_make_method_type (minfo->dhandle, *ptype, 4782 class_type, args, varargs); 4783 } 4784 } 4785 } 4786 break; 4787 4788 case 'G': 4789 ++*pp; 4790 if (! stab_demangle_type (minfo, pp, ptype)) 4791 return FALSE; 4792 break; 4793 4794 case 'C': 4795 ++*pp; 4796 if (! stab_demangle_type (minfo, pp, ptype)) 4797 return FALSE; 4798 if (ptype != NULL) 4799 *ptype = debug_make_const_type (minfo->dhandle, *ptype); 4800 break; 4801 4802 case 'Q': 4803 { 4804 if (! stab_demangle_qualified (minfo, pp, ptype)) 4805 return FALSE; 4806 } 4807 break; 4808 4809 default: 4810 if (! stab_demangle_fund_type (minfo, pp, ptype)) 4811 return FALSE; 4812 break; 4813 } 4814 4815 return TRUE; 4816 } 4817 4818 /* Demangle a fundamental type. If the ptype argument is not NULL, 4819 *ptype is set to the newly allocated type. */ 4820 4821 static bfd_boolean 4822 stab_demangle_fund_type (struct stab_demangle_info *minfo, const char **pp, 4823 debug_type *ptype) 4824 { 4825 const char *orig; 4826 bfd_boolean constp, volatilep, unsignedp, signedp; 4827 bfd_boolean done; 4828 4829 orig = *pp; 4830 4831 constp = FALSE; 4832 volatilep = FALSE; 4833 unsignedp = FALSE; 4834 signedp = FALSE; 4835 4836 done = FALSE; 4837 while (! done) 4838 { 4839 switch (**pp) 4840 { 4841 case 'C': 4842 constp = TRUE; 4843 ++*pp; 4844 break; 4845 4846 case 'U': 4847 unsignedp = TRUE; 4848 ++*pp; 4849 break; 4850 4851 case 'S': 4852 signedp = TRUE; 4853 ++*pp; 4854 break; 4855 4856 case 'V': 4857 volatilep = TRUE; 4858 ++*pp; 4859 break; 4860 4861 default: 4862 done = TRUE; 4863 break; 4864 } 4865 } 4866 4867 switch (**pp) 4868 { 4869 case '\0': 4870 case '_': 4871 /* cplus_demangle permits this, but I don't know what it means. */ 4872 stab_bad_demangle (orig); 4873 break; 4874 4875 case 'v': /* void */ 4876 if (ptype != NULL) 4877 { 4878 *ptype = debug_find_named_type (minfo->dhandle, "void"); 4879 if (*ptype == DEBUG_TYPE_NULL) 4880 *ptype = debug_make_void_type (minfo->dhandle); 4881 } 4882 ++*pp; 4883 break; 4884 4885 case 'x': /* long long */ 4886 if (ptype != NULL) 4887 { 4888 *ptype = debug_find_named_type (minfo->dhandle, 4889 (unsignedp 4890 ? "long long unsigned int" 4891 : "long long int")); 4892 if (*ptype == DEBUG_TYPE_NULL) 4893 *ptype = debug_make_int_type (minfo->dhandle, 8, unsignedp); 4894 } 4895 ++*pp; 4896 break; 4897 4898 case 'l': /* long */ 4899 if (ptype != NULL) 4900 { 4901 *ptype = debug_find_named_type (minfo->dhandle, 4902 (unsignedp 4903 ? "long unsigned int" 4904 : "long int")); 4905 if (*ptype == DEBUG_TYPE_NULL) 4906 *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); 4907 } 4908 ++*pp; 4909 break; 4910 4911 case 'i': /* int */ 4912 if (ptype != NULL) 4913 { 4914 *ptype = debug_find_named_type (minfo->dhandle, 4915 (unsignedp 4916 ? "unsigned int" 4917 : "int")); 4918 if (*ptype == DEBUG_TYPE_NULL) 4919 *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); 4920 } 4921 ++*pp; 4922 break; 4923 4924 case 's': /* short */ 4925 if (ptype != NULL) 4926 { 4927 *ptype = debug_find_named_type (minfo->dhandle, 4928 (unsignedp 4929 ? "short unsigned int" 4930 : "short int")); 4931 if (*ptype == DEBUG_TYPE_NULL) 4932 *ptype = debug_make_int_type (minfo->dhandle, 2, unsignedp); 4933 } 4934 ++*pp; 4935 break; 4936 4937 case 'b': /* bool */ 4938 if (ptype != NULL) 4939 { 4940 *ptype = debug_find_named_type (minfo->dhandle, "bool"); 4941 if (*ptype == DEBUG_TYPE_NULL) 4942 *ptype = debug_make_bool_type (minfo->dhandle, 4); 4943 } 4944 ++*pp; 4945 break; 4946 4947 case 'c': /* char */ 4948 if (ptype != NULL) 4949 { 4950 *ptype = debug_find_named_type (minfo->dhandle, 4951 (unsignedp 4952 ? "unsigned char" 4953 : (signedp 4954 ? "signed char" 4955 : "char"))); 4956 if (*ptype == DEBUG_TYPE_NULL) 4957 *ptype = debug_make_int_type (minfo->dhandle, 1, unsignedp); 4958 } 4959 ++*pp; 4960 break; 4961 4962 case 'w': /* wchar_t */ 4963 if (ptype != NULL) 4964 { 4965 *ptype = debug_find_named_type (minfo->dhandle, "__wchar_t"); 4966 if (*ptype == DEBUG_TYPE_NULL) 4967 *ptype = debug_make_int_type (minfo->dhandle, 2, TRUE); 4968 } 4969 ++*pp; 4970 break; 4971 4972 case 'r': /* long double */ 4973 if (ptype != NULL) 4974 { 4975 *ptype = debug_find_named_type (minfo->dhandle, "long double"); 4976 if (*ptype == DEBUG_TYPE_NULL) 4977 *ptype = debug_make_float_type (minfo->dhandle, 8); 4978 } 4979 ++*pp; 4980 break; 4981 4982 case 'd': /* double */ 4983 if (ptype != NULL) 4984 { 4985 *ptype = debug_find_named_type (minfo->dhandle, "double"); 4986 if (*ptype == DEBUG_TYPE_NULL) 4987 *ptype = debug_make_float_type (minfo->dhandle, 8); 4988 } 4989 ++*pp; 4990 break; 4991 4992 case 'f': /* float */ 4993 if (ptype != NULL) 4994 { 4995 *ptype = debug_find_named_type (minfo->dhandle, "float"); 4996 if (*ptype == DEBUG_TYPE_NULL) 4997 *ptype = debug_make_float_type (minfo->dhandle, 4); 4998 } 4999 ++*pp; 5000 break; 5001 5002 case 'G': 5003 ++*pp; 5004 if (! ISDIGIT (**pp)) 5005 { 5006 stab_bad_demangle (orig); 5007 return FALSE; 5008 } 5009 /* Fall through. */ 5010 case '0': case '1': case '2': case '3': case '4': 5011 case '5': case '6': case '7': case '8': case '9': 5012 { 5013 const char *hold; 5014 5015 if (! stab_demangle_class (minfo, pp, &hold)) 5016 return FALSE; 5017 if (ptype != NULL) 5018 { 5019 char *name; 5020 5021 name = savestring (hold, *pp - hold); 5022 *ptype = debug_find_named_type (minfo->dhandle, name); 5023 free (name); 5024 if (*ptype == DEBUG_TYPE_NULL) 5025 { 5026 /* FIXME: It is probably incorrect to assume that 5027 undefined types are tagged types. */ 5028 *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, 5029 hold, *pp - hold, 5030 DEBUG_KIND_ILLEGAL); 5031 if (*ptype == DEBUG_TYPE_NULL) 5032 return FALSE; 5033 } 5034 } 5035 } 5036 break; 5037 5038 case 't': 5039 { 5040 char *name; 5041 5042 if (! stab_demangle_template (minfo, pp, 5043 ptype != NULL ? &name : NULL)) 5044 return FALSE; 5045 if (ptype != NULL) 5046 { 5047 *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, 5048 name, strlen (name), 5049 DEBUG_KIND_CLASS); 5050 free (name); 5051 if (*ptype == DEBUG_TYPE_NULL) 5052 return FALSE; 5053 } 5054 } 5055 break; 5056 5057 default: 5058 stab_bad_demangle (orig); 5059 return FALSE; 5060 } 5061 5062 if (ptype != NULL) 5063 { 5064 if (constp) 5065 *ptype = debug_make_const_type (minfo->dhandle, *ptype); 5066 if (volatilep) 5067 *ptype = debug_make_volatile_type (minfo->dhandle, *ptype); 5068 } 5069 5070 return TRUE; 5071 } 5072 5073 /* Remember a type string in a demangled string. */ 5074 5075 static bfd_boolean 5076 stab_demangle_remember_type (struct stab_demangle_info *minfo, 5077 const char *p, int len) 5078 { 5079 if (minfo->typestring_count >= minfo->typestring_alloc) 5080 { 5081 minfo->typestring_alloc += 10; 5082 minfo->typestrings = ((struct stab_demangle_typestring *) 5083 xrealloc (minfo->typestrings, 5084 (minfo->typestring_alloc 5085 * sizeof *minfo->typestrings))); 5086 } 5087 5088 minfo->typestrings[minfo->typestring_count].typestring = p; 5089 minfo->typestrings[minfo->typestring_count].len = (unsigned int) len; 5090 ++minfo->typestring_count; 5091 5092 return TRUE; 5093 } 5094 5095 /* Demangle names encoded using the g++ V3 ABI. The newer versions of 5096 g++ which use this ABI do not encode ordinary method argument types 5097 in a mangled name; they simply output the argument types. However, 5098 for a static method, g++ simply outputs the return type and the 5099 physical name. So in that case we need to demangle the name here. 5100 Here PHYSNAME is the physical name of the function, and we set the 5101 variable pointed at by PVARARGS to indicate whether this function 5102 is varargs. This returns NULL, or a NULL terminated array of 5103 argument types. */ 5104 5105 static debug_type * 5106 stab_demangle_v3_argtypes (void *dhandle, struct stab_handle *info, 5107 const char *physname, bfd_boolean *pvarargs) 5108 { 5109 struct demangle_component *dc; 5110 void *mem; 5111 debug_type *pargs; 5112 5113 dc = cplus_demangle_v3_components (physname, DMGL_PARAMS | DMGL_ANSI, &mem); 5114 if (dc == NULL) 5115 { 5116 stab_bad_demangle (physname); 5117 return NULL; 5118 } 5119 5120 /* We expect to see TYPED_NAME, and the right subtree describes the 5121 function type. */ 5122 if (dc->type != DEMANGLE_COMPONENT_TYPED_NAME 5123 || dc->u.s_binary.right->type != DEMANGLE_COMPONENT_FUNCTION_TYPE) 5124 { 5125 fprintf (stderr, _("Demangled name is not a function\n")); 5126 free (mem); 5127 return NULL; 5128 } 5129 5130 pargs = stab_demangle_v3_arglist (dhandle, info, 5131 dc->u.s_binary.right->u.s_binary.right, 5132 pvarargs); 5133 5134 free (mem); 5135 5136 return pargs; 5137 } 5138 5139 /* Demangle an argument list in a struct demangle_component tree. 5140 Returns a DEBUG_TYPE_NULL terminated array of argument types, and 5141 sets *PVARARGS to indicate whether this is a varargs function. */ 5142 5143 static debug_type * 5144 stab_demangle_v3_arglist (void *dhandle, struct stab_handle *info, 5145 struct demangle_component *arglist, 5146 bfd_boolean *pvarargs) 5147 { 5148 struct demangle_component *dc; 5149 unsigned int alloc, count; 5150 debug_type *pargs; 5151 5152 alloc = 10; 5153 pargs = (debug_type *) xmalloc (alloc * sizeof *pargs); 5154 *pvarargs = FALSE; 5155 5156 count = 0; 5157 5158 for (dc = arglist; 5159 dc != NULL; 5160 dc = dc->u.s_binary.right) 5161 { 5162 debug_type arg; 5163 bfd_boolean varargs; 5164 5165 if (dc->type != DEMANGLE_COMPONENT_ARGLIST) 5166 { 5167 fprintf (stderr, _("Unexpected type in v3 arglist demangling\n")); 5168 free (pargs); 5169 return NULL; 5170 } 5171 5172 /* PR 13925: Cope if the demangler returns an empty 5173 context for a function with no arguments. */ 5174 if (dc->u.s_binary.left == NULL) 5175 break; 5176 5177 arg = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, 5178 NULL, &varargs); 5179 if (arg == NULL) 5180 { 5181 if (varargs) 5182 { 5183 *pvarargs = TRUE; 5184 continue; 5185 } 5186 free (pargs); 5187 return NULL; 5188 } 5189 5190 if (count + 1 >= alloc) 5191 { 5192 alloc += 10; 5193 pargs = (debug_type *) xrealloc (pargs, alloc * sizeof *pargs); 5194 } 5195 5196 pargs[count] = arg; 5197 ++count; 5198 } 5199 5200 pargs[count] = DEBUG_TYPE_NULL; 5201 5202 return pargs; 5203 } 5204 5205 /* Convert a struct demangle_component tree describing an argument 5206 type into a debug_type. */ 5207 5208 static debug_type 5209 stab_demangle_v3_arg (void *dhandle, struct stab_handle *info, 5210 struct demangle_component *dc, debug_type context, 5211 bfd_boolean *pvarargs) 5212 { 5213 debug_type dt; 5214 5215 if (pvarargs != NULL) 5216 *pvarargs = FALSE; 5217 5218 switch (dc->type) 5219 { 5220 /* FIXME: These are demangle component types which we probably 5221 need to handle one way or another. */ 5222 case DEMANGLE_COMPONENT_LOCAL_NAME: 5223 case DEMANGLE_COMPONENT_TYPED_NAME: 5224 case DEMANGLE_COMPONENT_TEMPLATE_PARAM: 5225 case DEMANGLE_COMPONENT_CTOR: 5226 case DEMANGLE_COMPONENT_DTOR: 5227 case DEMANGLE_COMPONENT_JAVA_CLASS: 5228 case DEMANGLE_COMPONENT_RESTRICT_THIS: 5229 case DEMANGLE_COMPONENT_VOLATILE_THIS: 5230 case DEMANGLE_COMPONENT_CONST_THIS: 5231 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: 5232 case DEMANGLE_COMPONENT_COMPLEX: 5233 case DEMANGLE_COMPONENT_IMAGINARY: 5234 case DEMANGLE_COMPONENT_VENDOR_TYPE: 5235 case DEMANGLE_COMPONENT_ARRAY_TYPE: 5236 case DEMANGLE_COMPONENT_PTRMEM_TYPE: 5237 case DEMANGLE_COMPONENT_ARGLIST: 5238 default: 5239 fprintf (stderr, _("Unrecognized demangle component %d\n"), 5240 (int) dc->type); 5241 return NULL; 5242 5243 case DEMANGLE_COMPONENT_NAME: 5244 if (context != NULL) 5245 { 5246 const debug_field *fields; 5247 5248 fields = debug_get_fields (dhandle, context); 5249 if (fields != NULL) 5250 { 5251 /* Try to find this type by looking through the context 5252 class. */ 5253 for (; *fields != DEBUG_FIELD_NULL; fields++) 5254 { 5255 debug_type ft; 5256 const char *dn; 5257 5258 ft = debug_get_field_type (dhandle, *fields); 5259 if (ft == NULL) 5260 return NULL; 5261 dn = debug_get_type_name (dhandle, ft); 5262 if (dn != NULL 5263 && (int) strlen (dn) == dc->u.s_name.len 5264 && strncmp (dn, dc->u.s_name.s, dc->u.s_name.len) == 0) 5265 return ft; 5266 } 5267 } 5268 } 5269 return stab_find_tagged_type (dhandle, info, dc->u.s_name.s, 5270 dc->u.s_name.len, DEBUG_KIND_ILLEGAL); 5271 5272 case DEMANGLE_COMPONENT_QUAL_NAME: 5273 context = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, 5274 context, NULL); 5275 if (context == NULL) 5276 return NULL; 5277 return stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.right, 5278 context, NULL); 5279 5280 case DEMANGLE_COMPONENT_TEMPLATE: 5281 { 5282 char *p; 5283 size_t alc; 5284 5285 /* We print this component to get a class name which we can 5286 use. FIXME: This probably won't work if the template uses 5287 template parameters which refer to an outer template. */ 5288 p = cplus_demangle_print (DMGL_PARAMS | DMGL_ANSI, dc, 20, &alc); 5289 if (p == NULL) 5290 { 5291 fprintf (stderr, _("Failed to print demangled template\n")); 5292 return NULL; 5293 } 5294 dt = stab_find_tagged_type (dhandle, info, p, strlen (p), 5295 DEBUG_KIND_CLASS); 5296 free (p); 5297 return dt; 5298 } 5299 5300 case DEMANGLE_COMPONENT_SUB_STD: 5301 return stab_find_tagged_type (dhandle, info, dc->u.s_string.string, 5302 dc->u.s_string.len, DEBUG_KIND_ILLEGAL); 5303 5304 case DEMANGLE_COMPONENT_RESTRICT: 5305 case DEMANGLE_COMPONENT_VOLATILE: 5306 case DEMANGLE_COMPONENT_CONST: 5307 case DEMANGLE_COMPONENT_POINTER: 5308 case DEMANGLE_COMPONENT_REFERENCE: 5309 dt = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, NULL, 5310 NULL); 5311 if (dt == NULL) 5312 return NULL; 5313 5314 switch (dc->type) 5315 { 5316 default: 5317 abort (); 5318 case DEMANGLE_COMPONENT_RESTRICT: 5319 /* FIXME: We have no way to represent restrict. */ 5320 return dt; 5321 case DEMANGLE_COMPONENT_VOLATILE: 5322 return debug_make_volatile_type (dhandle, dt); 5323 case DEMANGLE_COMPONENT_CONST: 5324 return debug_make_const_type (dhandle, dt); 5325 case DEMANGLE_COMPONENT_POINTER: 5326 return debug_make_pointer_type (dhandle, dt); 5327 case DEMANGLE_COMPONENT_REFERENCE: 5328 return debug_make_reference_type (dhandle, dt); 5329 } 5330 5331 case DEMANGLE_COMPONENT_FUNCTION_TYPE: 5332 { 5333 debug_type *pargs; 5334 bfd_boolean varargs; 5335 5336 if (dc->u.s_binary.left == NULL) 5337 { 5338 /* In this case the return type is actually unknown. 5339 However, I'm not sure this will ever arise in practice; 5340 normally an unknown return type would only appear at 5341 the top level, which is handled above. */ 5342 dt = debug_make_void_type (dhandle); 5343 } 5344 else 5345 dt = stab_demangle_v3_arg (dhandle, info, dc->u.s_binary.left, NULL, 5346 NULL); 5347 if (dt == NULL) 5348 return NULL; 5349 5350 pargs = stab_demangle_v3_arglist (dhandle, info, 5351 dc->u.s_binary.right, 5352 &varargs); 5353 if (pargs == NULL) 5354 return NULL; 5355 5356 return debug_make_function_type (dhandle, dt, pargs, varargs); 5357 } 5358 5359 case DEMANGLE_COMPONENT_BUILTIN_TYPE: 5360 { 5361 char *p; 5362 size_t alc; 5363 debug_type ret; 5364 5365 /* We print this component in order to find out the type name. 5366 FIXME: Should we instead expose the 5367 demangle_builtin_type_info structure? */ 5368 p = cplus_demangle_print (DMGL_PARAMS | DMGL_ANSI, dc, 20, &alc); 5369 if (p == NULL) 5370 { 5371 fprintf (stderr, _("Couldn't get demangled builtin type\n")); 5372 return NULL; 5373 } 5374 5375 /* The mangling is based on the type, but does not itself 5376 indicate what the sizes are. So we have to guess. */ 5377 if (strcmp (p, "signed char") == 0) 5378 ret = debug_make_int_type (dhandle, 1, FALSE); 5379 else if (strcmp (p, "bool") == 0) 5380 ret = debug_make_bool_type (dhandle, 1); 5381 else if (strcmp (p, "char") == 0) 5382 ret = debug_make_int_type (dhandle, 1, FALSE); 5383 else if (strcmp (p, "double") == 0) 5384 ret = debug_make_float_type (dhandle, 8); 5385 else if (strcmp (p, "long double") == 0) 5386 ret = debug_make_float_type (dhandle, 8); 5387 else if (strcmp (p, "float") == 0) 5388 ret = debug_make_float_type (dhandle, 4); 5389 else if (strcmp (p, "__float128") == 0) 5390 ret = debug_make_float_type (dhandle, 16); 5391 else if (strcmp (p, "unsigned char") == 0) 5392 ret = debug_make_int_type (dhandle, 1, TRUE); 5393 else if (strcmp (p, "int") == 0) 5394 ret = debug_make_int_type (dhandle, 4, FALSE); 5395 else if (strcmp (p, "unsigned int") == 0) 5396 ret = debug_make_int_type (dhandle, 4, TRUE); 5397 else if (strcmp (p, "long") == 0) 5398 ret = debug_make_int_type (dhandle, 4, FALSE); 5399 else if (strcmp (p, "unsigned long") == 0) 5400 ret = debug_make_int_type (dhandle, 4, TRUE); 5401 else if (strcmp (p, "__int128") == 0) 5402 ret = debug_make_int_type (dhandle, 16, FALSE); 5403 else if (strcmp (p, "unsigned __int128") == 0) 5404 ret = debug_make_int_type (dhandle, 16, TRUE); 5405 else if (strcmp (p, "short") == 0) 5406 ret = debug_make_int_type (dhandle, 2, FALSE); 5407 else if (strcmp (p, "unsigned short") == 0) 5408 ret = debug_make_int_type (dhandle, 2, TRUE); 5409 else if (strcmp (p, "void") == 0) 5410 ret = debug_make_void_type (dhandle); 5411 else if (strcmp (p, "wchar_t") == 0) 5412 ret = debug_make_int_type (dhandle, 4, TRUE); 5413 else if (strcmp (p, "long long") == 0) 5414 ret = debug_make_int_type (dhandle, 8, FALSE); 5415 else if (strcmp (p, "unsigned long long") == 0) 5416 ret = debug_make_int_type (dhandle, 8, TRUE); 5417 else if (strcmp (p, "...") == 0) 5418 { 5419 if (pvarargs == NULL) 5420 fprintf (stderr, _("Unexpected demangled varargs\n")); 5421 else 5422 *pvarargs = TRUE; 5423 ret = NULL; 5424 } 5425 else 5426 { 5427 fprintf (stderr, _("Unrecognized demangled builtin type\n")); 5428 ret = NULL; 5429 } 5430 5431 free (p); 5432 5433 return ret; 5434 } 5435 } 5436 } 5437