| 1 | /* stabs.c -- Parse stabs debugging information |
| 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 |
| 3 | 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 2 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., 59 Temple Place - Suite 330, Boston, MA |
| 21 | 02111-1307, 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 <stdio.h> |
| 29 | |
| 30 | #include "bfd.h" |
| 31 | #include "bucomm.h" |
| 32 | #include "libiberty.h" |
| 33 | #include "safe-ctype.h" |
| 34 | #include "demangle.h" |
| 35 | #include "debug.h" |
| 36 | #include "budbg.h" |
| 37 | #include "filenames.h" |
| 38 | |
| 39 | /* Meaningless definition needs by aout64.h. FIXME. */ |
| 40 | #define BYTES_IN_WORD 4 |
| 41 | |
| 42 | #include "aout/aout64.h" |
| 43 | #include "aout/stab_gnu.h" |
| 44 | |
| 45 | /* The number of predefined XCOFF types. */ |
| 46 | |
| 47 | #define XCOFF_TYPE_COUNT 34 |
| 48 | |
| 49 | /* This structure is used as a handle so that the stab parsing doesn't |
| 50 | need to use any static variables. */ |
| 51 | |
| 52 | struct stab_handle |
| 53 | { |
| 54 | /* The BFD. */ |
| 55 | bfd *abfd; |
| 56 | /* True if this is stabs in sections. */ |
| 57 | boolean sections; |
| 58 | /* The symbol table. */ |
| 59 | asymbol **syms; |
| 60 | /* The number of symbols. */ |
| 61 | long symcount; |
| 62 | /* The accumulated file name string. */ |
| 63 | char *so_string; |
| 64 | /* The value of the last N_SO symbol. */ |
| 65 | bfd_vma so_value; |
| 66 | /* The value of the start of the file, so that we can handle file |
| 67 | relative N_LBRAC and N_RBRAC symbols. */ |
| 68 | bfd_vma file_start_offset; |
| 69 | /* The offset of the start of the function, so that we can handle |
| 70 | function relative N_LBRAC and N_RBRAC symbols. */ |
| 71 | bfd_vma function_start_offset; |
| 72 | /* The version number of gcc which compiled the current compilation |
| 73 | unit, 0 if not compiled by gcc. */ |
| 74 | int gcc_compiled; |
| 75 | /* Whether an N_OPT symbol was seen that was not generated by gcc, |
| 76 | so that we can detect the SunPRO compiler. */ |
| 77 | boolean n_opt_found; |
| 78 | /* The main file name. */ |
| 79 | char *main_filename; |
| 80 | /* A stack of unfinished N_BINCL files. */ |
| 81 | struct bincl_file *bincl_stack; |
| 82 | /* A list of finished N_BINCL files. */ |
| 83 | struct bincl_file *bincl_list; |
| 84 | /* Whether we are inside a function or not. */ |
| 85 | boolean within_function; |
| 86 | /* The address of the end of the function, used if we have seen an |
| 87 | N_FUN symbol while in a function. This is -1 if we have not seen |
| 88 | an N_FUN (the normal case). */ |
| 89 | bfd_vma function_end; |
| 90 | /* The depth of block nesting. */ |
| 91 | int block_depth; |
| 92 | /* List of pending variable definitions. */ |
| 93 | struct stab_pending_var *pending; |
| 94 | /* Number of files for which we have types. */ |
| 95 | unsigned int files; |
| 96 | /* Lists of types per file. */ |
| 97 | struct stab_types **file_types; |
| 98 | /* Predefined XCOFF types. */ |
| 99 | debug_type xcoff_types[XCOFF_TYPE_COUNT]; |
| 100 | /* Undefined tags. */ |
| 101 | struct stab_tag *tags; |
| 102 | /* Set by parse_stab_type if it sees a structure defined as a cross |
| 103 | reference to itself. Reset by parse_stab_type otherwise. */ |
| 104 | boolean self_crossref; |
| 105 | }; |
| 106 | |
| 107 | /* A list of these structures is used to hold pending variable |
| 108 | definitions seen before the N_LBRAC of a block. */ |
| 109 | |
| 110 | struct stab_pending_var |
| 111 | { |
| 112 | /* Next pending variable definition. */ |
| 113 | struct stab_pending_var *next; |
| 114 | /* Name. */ |
| 115 | const char *name; |
| 116 | /* Type. */ |
| 117 | debug_type type; |
| 118 | /* Kind. */ |
| 119 | enum debug_var_kind kind; |
| 120 | /* Value. */ |
| 121 | bfd_vma val; |
| 122 | }; |
| 123 | |
| 124 | /* A list of these structures is used to hold the types for a single |
| 125 | file. */ |
| 126 | |
| 127 | struct stab_types |
| 128 | { |
| 129 | /* Next set of slots for this file. */ |
| 130 | struct stab_types *next; |
| 131 | /* Types indexed by type number. */ |
| 132 | #define STAB_TYPES_SLOTS (16) |
| 133 | debug_type types[STAB_TYPES_SLOTS]; |
| 134 | }; |
| 135 | |
| 136 | /* We keep a list of undefined tags that we encounter, so that we can |
| 137 | fill them in if the tag is later defined. */ |
| 138 | |
| 139 | struct stab_tag |
| 140 | { |
| 141 | /* Next undefined tag. */ |
| 142 | struct stab_tag *next; |
| 143 | /* Tag name. */ |
| 144 | const char *name; |
| 145 | /* Type kind. */ |
| 146 | enum debug_type_kind kind; |
| 147 | /* Slot to hold real type when we discover it. If we don't, we fill |
| 148 | in an undefined tag type. */ |
| 149 | debug_type slot; |
| 150 | /* Indirect type we have created to point at slot. */ |
| 151 | debug_type type; |
| 152 | }; |
| 153 | |
| 154 | static char *savestring PARAMS ((const char *, int)); |
| 155 | static bfd_vma parse_number PARAMS ((const char **, boolean *)); |
| 156 | static void bad_stab PARAMS ((const char *)); |
| 157 | static void warn_stab PARAMS ((const char *, const char *)); |
| 158 | static boolean parse_stab_string |
| 159 | PARAMS ((PTR, struct stab_handle *, int, int, bfd_vma, const char *)); |
| 160 | static debug_type parse_stab_type |
| 161 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, |
| 162 | debug_type **)); |
| 163 | static boolean parse_stab_type_number |
| 164 | PARAMS ((const char **, int *)); |
| 165 | static debug_type parse_stab_range_type |
| 166 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, |
| 167 | const int *)); |
| 168 | static debug_type parse_stab_sun_builtin_type PARAMS ((PTR, const char **)); |
| 169 | static debug_type parse_stab_sun_floating_type |
| 170 | PARAMS ((PTR, const char **)); |
| 171 | static debug_type parse_stab_enum_type PARAMS ((PTR, const char **)); |
| 172 | static debug_type parse_stab_struct_type |
| 173 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, boolean, |
| 174 | const int *)); |
| 175 | static boolean parse_stab_baseclasses |
| 176 | PARAMS ((PTR, struct stab_handle *, const char **, debug_baseclass **)); |
| 177 | static boolean parse_stab_struct_fields |
| 178 | PARAMS ((PTR, struct stab_handle *, const char **, debug_field **, |
| 179 | boolean *)); |
| 180 | static boolean parse_stab_cpp_abbrev |
| 181 | PARAMS ((PTR, struct stab_handle *, const char **, debug_field *)); |
| 182 | static boolean parse_stab_one_struct_field |
| 183 | PARAMS ((PTR, struct stab_handle *, const char **, const char *, |
| 184 | debug_field *, boolean *)); |
| 185 | static boolean parse_stab_members |
| 186 | PARAMS ((PTR, struct stab_handle *, const char *, const char **, |
| 187 | const int *, debug_method **)); |
| 188 | static debug_type parse_stab_argtypes |
| 189 | PARAMS ((PTR, struct stab_handle *, debug_type, const char *, const char *, |
| 190 | debug_type, const char *, boolean, boolean, const char **)); |
| 191 | static boolean parse_stab_tilde_field |
| 192 | PARAMS ((PTR, struct stab_handle *, const char **, const int *, |
| 193 | debug_type *, boolean *)); |
| 194 | static debug_type parse_stab_array_type |
| 195 | PARAMS ((PTR, struct stab_handle *, const char **, boolean)); |
| 196 | static void push_bincl PARAMS ((struct stab_handle *, const char *, bfd_vma)); |
| 197 | static const char *pop_bincl PARAMS ((struct stab_handle *)); |
| 198 | static boolean find_excl |
| 199 | PARAMS ((struct stab_handle *, const char *, bfd_vma)); |
| 200 | static boolean stab_record_variable |
| 201 | PARAMS ((PTR, struct stab_handle *, const char *, debug_type, |
| 202 | enum debug_var_kind, bfd_vma)); |
| 203 | static boolean stab_emit_pending_vars PARAMS ((PTR, struct stab_handle *)); |
| 204 | static debug_type *stab_find_slot |
| 205 | PARAMS ((struct stab_handle *, const int *)); |
| 206 | static debug_type stab_find_type |
| 207 | PARAMS ((PTR, struct stab_handle *, const int *)); |
| 208 | static boolean stab_record_type |
| 209 | PARAMS ((PTR, struct stab_handle *, const int *, debug_type)); |
| 210 | static debug_type stab_xcoff_builtin_type |
| 211 | PARAMS ((PTR, struct stab_handle *, int)); |
| 212 | static debug_type stab_find_tagged_type |
| 213 | PARAMS ((PTR, struct stab_handle *, const char *, int, |
| 214 | enum debug_type_kind)); |
| 215 | static debug_type *stab_demangle_argtypes |
| 216 | PARAMS ((PTR, struct stab_handle *, const char *, boolean *, unsigned int)); |
| 217 | |
| 218 | /* Save a string in memory. */ |
| 219 | |
| 220 | static char * |
| 221 | savestring (start, len) |
| 222 | const char *start; |
| 223 | int len; |
| 224 | { |
| 225 | char *ret; |
| 226 | |
| 227 | ret = (char *) xmalloc (len + 1); |
| 228 | memcpy (ret, start, len); |
| 229 | ret[len] = '\0'; |
| 230 | return ret; |
| 231 | } |
| 232 | |
| 233 | /* Read a number from a string. */ |
| 234 | |
| 235 | static bfd_vma |
| 236 | parse_number (pp, poverflow) |
| 237 | const char **pp; |
| 238 | boolean *poverflow; |
| 239 | { |
| 240 | unsigned long ul; |
| 241 | const char *orig; |
| 242 | |
| 243 | if (poverflow != NULL) |
| 244 | *poverflow = false; |
| 245 | |
| 246 | orig = *pp; |
| 247 | |
| 248 | errno = 0; |
| 249 | ul = strtoul (*pp, (char **) pp, 0); |
| 250 | if (ul + 1 != 0 || errno == 0) |
| 251 | { |
| 252 | /* If bfd_vma is larger than unsigned long, and the number is |
| 253 | meant to be negative, we have to make sure that we sign |
| 254 | extend properly. */ |
| 255 | if (*orig == '-') |
| 256 | return (bfd_vma) (bfd_signed_vma) (long) ul; |
| 257 | return (bfd_vma) ul; |
| 258 | } |
| 259 | |
| 260 | /* Note that even though strtoul overflowed, it should have set *pp |
| 261 | to the end of the number, which is where we want it. */ |
| 262 | |
| 263 | if (sizeof (bfd_vma) > sizeof (unsigned long)) |
| 264 | { |
| 265 | const char *p; |
| 266 | boolean neg; |
| 267 | int base; |
| 268 | bfd_vma over, lastdig; |
| 269 | boolean overflow; |
| 270 | bfd_vma v; |
| 271 | |
| 272 | /* Our own version of strtoul, for a bfd_vma. */ |
| 273 | |
| 274 | p = orig; |
| 275 | |
| 276 | neg = false; |
| 277 | if (*p == '+') |
| 278 | ++p; |
| 279 | else if (*p == '-') |
| 280 | { |
| 281 | neg = true; |
| 282 | ++p; |
| 283 | } |
| 284 | |
| 285 | base = 10; |
| 286 | if (*p == '0') |
| 287 | { |
| 288 | if (p[1] == 'x' || p[1] == 'X') |
| 289 | { |
| 290 | base = 16; |
| 291 | p += 2; |
| 292 | } |
| 293 | else |
| 294 | { |
| 295 | base = 8; |
| 296 | ++p; |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | over = ((bfd_vma) (bfd_signed_vma) -1) / (bfd_vma) base; |
| 301 | lastdig = ((bfd_vma) (bfd_signed_vma) -1) % (bfd_vma) base; |
| 302 | |
| 303 | overflow = false; |
| 304 | v = 0; |
| 305 | while (1) |
| 306 | { |
| 307 | int d; |
| 308 | |
| 309 | d = *p++; |
| 310 | if (ISDIGIT (d)) |
| 311 | d -= '0'; |
| 312 | else if (ISUPPER (d)) |
| 313 | d -= 'A'; |
| 314 | else if (ISLOWER (d)) |
| 315 | d -= 'a'; |
| 316 | else |
| 317 | break; |
| 318 | |
| 319 | if (d >= base) |
| 320 | break; |
| 321 | |
| 322 | if (v > over || (v == over && (bfd_vma) d > lastdig)) |
| 323 | { |
| 324 | overflow = true; |
| 325 | break; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | if (! overflow) |
| 330 | { |
| 331 | if (neg) |
| 332 | v = - v; |
| 333 | return v; |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | /* If we get here, the number is too large to represent in a |
| 338 | bfd_vma. */ |
| 339 | |
| 340 | if (poverflow != NULL) |
| 341 | *poverflow = true; |
| 342 | else |
| 343 | warn_stab (orig, _("numeric overflow")); |
| 344 | |
| 345 | return 0; |
| 346 | } |
| 347 | |
| 348 | /* Give an error for a bad stab string. */ |
| 349 | |
| 350 | static void |
| 351 | bad_stab (p) |
| 352 | const char *p; |
| 353 | { |
| 354 | fprintf (stderr, _("Bad stab: %s\n"), p); |
| 355 | } |
| 356 | |
| 357 | /* Warn about something in a stab string. */ |
| 358 | |
| 359 | static void |
| 360 | warn_stab (p, err) |
| 361 | const char *p; |
| 362 | const char *err; |
| 363 | { |
| 364 | fprintf (stderr, _("Warning: %s: %s\n"), err, p); |
| 365 | } |
| 366 | |
| 367 | /* Create a handle to parse stabs symbols with. */ |
| 368 | |
| 369 | PTR |
| 370 | start_stab (dhandle, abfd, sections, syms, symcount) |
| 371 | PTR dhandle ATTRIBUTE_UNUSED; |
| 372 | bfd *abfd; |
| 373 | boolean sections; |
| 374 | asymbol **syms; |
| 375 | long symcount; |
| 376 | { |
| 377 | struct stab_handle *ret; |
| 378 | |
| 379 | ret = (struct stab_handle *) xmalloc (sizeof *ret); |
| 380 | memset (ret, 0, sizeof *ret); |
| 381 | ret->abfd = abfd; |
| 382 | ret->sections = sections; |
| 383 | ret->syms = syms; |
| 384 | ret->symcount = symcount; |
| 385 | ret->files = 1; |
| 386 | ret->file_types = (struct stab_types **) xmalloc (sizeof *ret->file_types); |
| 387 | ret->file_types[0] = NULL; |
| 388 | ret->function_end = (bfd_vma) -1; |
| 389 | return (PTR) ret; |
| 390 | } |
| 391 | |
| 392 | /* When we have processed all the stabs information, we need to go |
| 393 | through and fill in all the undefined tags. */ |
| 394 | |
| 395 | boolean |
| 396 | finish_stab (dhandle, handle) |
| 397 | PTR dhandle; |
| 398 | PTR handle; |
| 399 | { |
| 400 | struct stab_handle *info = (struct stab_handle *) handle; |
| 401 | struct stab_tag *st; |
| 402 | |
| 403 | if (info->within_function) |
| 404 | { |
| 405 | if (! stab_emit_pending_vars (dhandle, info) |
| 406 | || ! debug_end_function (dhandle, info->function_end)) |
| 407 | return false; |
| 408 | info->within_function = false; |
| 409 | info->function_end = (bfd_vma) -1; |
| 410 | } |
| 411 | |
| 412 | for (st = info->tags; st != NULL; st = st->next) |
| 413 | { |
| 414 | enum debug_type_kind kind; |
| 415 | |
| 416 | kind = st->kind; |
| 417 | if (kind == DEBUG_KIND_ILLEGAL) |
| 418 | kind = DEBUG_KIND_STRUCT; |
| 419 | st->slot = debug_make_undefined_tagged_type (dhandle, st->name, kind); |
| 420 | if (st->slot == DEBUG_TYPE_NULL) |
| 421 | return false; |
| 422 | } |
| 423 | |
| 424 | return true; |
| 425 | } |
| 426 | |
| 427 | /* Handle a single stabs symbol. */ |
| 428 | |
| 429 | boolean |
| 430 | parse_stab (dhandle, handle, type, desc, value, string) |
| 431 | PTR dhandle; |
| 432 | PTR handle; |
| 433 | int type; |
| 434 | int desc; |
| 435 | bfd_vma value; |
| 436 | const char *string; |
| 437 | { |
| 438 | struct stab_handle *info = (struct stab_handle *) handle; |
| 439 | |
| 440 | /* gcc will emit two N_SO strings per compilation unit, one for the |
| 441 | directory name and one for the file name. We just collect N_SO |
| 442 | strings as we see them, and start the new compilation unit when |
| 443 | we see a non N_SO symbol. */ |
| 444 | if (info->so_string != NULL |
| 445 | && (type != N_SO || *string == '\0' || value != info->so_value)) |
| 446 | { |
| 447 | if (! debug_set_filename (dhandle, info->so_string)) |
| 448 | return false; |
| 449 | info->main_filename = info->so_string; |
| 450 | |
| 451 | info->gcc_compiled = 0; |
| 452 | info->n_opt_found = false; |
| 453 | |
| 454 | /* Generally, for stabs in the symbol table, the N_LBRAC and |
| 455 | N_RBRAC symbols are relative to the N_SO symbol value. */ |
| 456 | if (! info->sections) |
| 457 | info->file_start_offset = info->so_value; |
| 458 | |
| 459 | /* We need to reset the mapping from type numbers to types. We |
| 460 | can't free the old mapping, because of the use of |
| 461 | debug_make_indirect_type. */ |
| 462 | info->files = 1; |
| 463 | info->file_types = ((struct stab_types **) |
| 464 | xmalloc (sizeof *info->file_types)); |
| 465 | info->file_types[0] = NULL; |
| 466 | |
| 467 | info->so_string = NULL; |
| 468 | |
| 469 | /* Now process whatever type we just got. */ |
| 470 | } |
| 471 | |
| 472 | switch (type) |
| 473 | { |
| 474 | case N_FN: |
| 475 | case N_FN_SEQ: |
| 476 | break; |
| 477 | |
| 478 | case N_LBRAC: |
| 479 | /* Ignore extra outermost context from SunPRO cc and acc. */ |
| 480 | if (info->n_opt_found && desc == 1) |
| 481 | break; |
| 482 | |
| 483 | if (! info->within_function) |
| 484 | { |
| 485 | fprintf (stderr, _("N_LBRAC not within function\n")); |
| 486 | return false; |
| 487 | } |
| 488 | |
| 489 | /* Start an inner lexical block. */ |
| 490 | if (! debug_start_block (dhandle, |
| 491 | (value |
| 492 | + info->file_start_offset |
| 493 | + info->function_start_offset))) |
| 494 | return false; |
| 495 | |
| 496 | /* Emit any pending variable definitions. */ |
| 497 | if (! stab_emit_pending_vars (dhandle, info)) |
| 498 | return false; |
| 499 | |
| 500 | ++info->block_depth; |
| 501 | break; |
| 502 | |
| 503 | case N_RBRAC: |
| 504 | /* Ignore extra outermost context from SunPRO cc and acc. */ |
| 505 | if (info->n_opt_found && desc == 1) |
| 506 | break; |
| 507 | |
| 508 | /* We shouldn't have any pending variable definitions here, but, |
| 509 | if we do, we probably need to emit them before closing the |
| 510 | block. */ |
| 511 | if (! stab_emit_pending_vars (dhandle, info)) |
| 512 | return false; |
| 513 | |
| 514 | /* End an inner lexical block. */ |
| 515 | if (! debug_end_block (dhandle, |
| 516 | (value |
| 517 | + info->file_start_offset |
| 518 | + info->function_start_offset))) |
| 519 | return false; |
| 520 | |
| 521 | --info->block_depth; |
| 522 | if (info->block_depth < 0) |
| 523 | { |
| 524 | fprintf (stderr, _("Too many N_RBRACs\n")); |
| 525 | return false; |
| 526 | } |
| 527 | break; |
| 528 | |
| 529 | case N_SO: |
| 530 | /* This always ends a function. */ |
| 531 | if (info->within_function) |
| 532 | { |
| 533 | bfd_vma endval; |
| 534 | |
| 535 | endval = value; |
| 536 | if (*string != '\0' |
| 537 | && info->function_end != (bfd_vma) -1 |
| 538 | && info->function_end < endval) |
| 539 | endval = info->function_end; |
| 540 | if (! stab_emit_pending_vars (dhandle, info) |
| 541 | || ! debug_end_function (dhandle, endval)) |
| 542 | return false; |
| 543 | info->within_function = false; |
| 544 | info->function_end = (bfd_vma) -1; |
| 545 | } |
| 546 | |
| 547 | /* An empty string is emitted by gcc at the end of a compilation |
| 548 | unit. */ |
| 549 | if (*string == '\0') |
| 550 | return true; |
| 551 | |
| 552 | /* Just accumulate strings until we see a non N_SO symbol. If |
| 553 | the string starts with a directory separator or some other |
| 554 | form of absolute path specification, we discard the previously |
| 555 | accumulated strings. */ |
| 556 | if (info->so_string == NULL) |
| 557 | info->so_string = xstrdup (string); |
| 558 | else |
| 559 | { |
| 560 | char *f; |
| 561 | |
| 562 | f = info->so_string; |
| 563 | |
| 564 | if (IS_ABSOLUTE_PATH (string)) |
| 565 | info->so_string = xstrdup (string); |
| 566 | else |
| 567 | info->so_string = concat (info->so_string, string, |
| 568 | (const char *) NULL); |
| 569 | free (f); |
| 570 | } |
| 571 | |
| 572 | info->so_value = value; |
| 573 | |
| 574 | break; |
| 575 | |
| 576 | case N_SOL: |
| 577 | /* Start an include file. */ |
| 578 | if (! debug_start_source (dhandle, string)) |
| 579 | return false; |
| 580 | break; |
| 581 | |
| 582 | case N_BINCL: |
| 583 | /* Start an include file which may be replaced. */ |
| 584 | push_bincl (info, string, value); |
| 585 | if (! debug_start_source (dhandle, string)) |
| 586 | return false; |
| 587 | break; |
| 588 | |
| 589 | case N_EINCL: |
| 590 | /* End an N_BINCL include. */ |
| 591 | if (! debug_start_source (dhandle, pop_bincl (info))) |
| 592 | return false; |
| 593 | break; |
| 594 | |
| 595 | case N_EXCL: |
| 596 | /* This is a duplicate of a header file named by N_BINCL which |
| 597 | was eliminated by the linker. */ |
| 598 | if (! find_excl (info, string, value)) |
| 599 | return false; |
| 600 | break; |
| 601 | |
| 602 | case N_SLINE: |
| 603 | if (! debug_record_line (dhandle, desc, |
| 604 | value + info->function_start_offset)) |
| 605 | return false; |
| 606 | break; |
| 607 | |
| 608 | case N_BCOMM: |
| 609 | if (! debug_start_common_block (dhandle, string)) |
| 610 | return false; |
| 611 | break; |
| 612 | |
| 613 | case N_ECOMM: |
| 614 | if (! debug_end_common_block (dhandle, string)) |
| 615 | return false; |
| 616 | break; |
| 617 | |
| 618 | case N_FUN: |
| 619 | if (*string == '\0') |
| 620 | { |
| 621 | if (info->within_function) |
| 622 | { |
| 623 | /* This always marks the end of a function; we don't |
| 624 | need to worry about info->function_end. */ |
| 625 | if (info->sections) |
| 626 | value += info->function_start_offset; |
| 627 | if (! stab_emit_pending_vars (dhandle, info) |
| 628 | || ! debug_end_function (dhandle, value)) |
| 629 | return false; |
| 630 | info->within_function = false; |
| 631 | info->function_end = (bfd_vma) -1; |
| 632 | } |
| 633 | break; |
| 634 | } |
| 635 | |
| 636 | /* A const static symbol in the .text section will have an N_FUN |
| 637 | entry. We need to use these to mark the end of the function, |
| 638 | in case we are looking at gcc output before it was changed to |
| 639 | always emit an empty N_FUN. We can't call debug_end_function |
| 640 | here, because it might be a local static symbol. */ |
| 641 | if (info->within_function |
| 642 | && (info->function_end == (bfd_vma) -1 |
| 643 | || value < info->function_end)) |
| 644 | info->function_end = value; |
| 645 | |
| 646 | /* Fall through. */ |
| 647 | /* FIXME: gdb checks the string for N_STSYM, N_LCSYM or N_ROSYM |
| 648 | symbols, and if it does not start with :S, gdb relocates the |
| 649 | value to the start of the section. gcc always seems to use |
| 650 | :S, so we don't worry about this. */ |
| 651 | /* Fall through. */ |
| 652 | default: |
| 653 | { |
| 654 | const char *colon; |
| 655 | |
| 656 | colon = strchr (string, ':'); |
| 657 | if (colon != NULL |
| 658 | && (colon[1] == 'f' || colon[1] == 'F')) |
| 659 | { |
| 660 | if (info->within_function) |
| 661 | { |
| 662 | bfd_vma endval; |
| 663 | |
| 664 | endval = value; |
| 665 | if (info->function_end != (bfd_vma) -1 |
| 666 | && info->function_end < endval) |
| 667 | endval = info->function_end; |
| 668 | if (! stab_emit_pending_vars (dhandle, info) |
| 669 | || ! debug_end_function (dhandle, endval)) |
| 670 | return false; |
| 671 | info->function_end = (bfd_vma) -1; |
| 672 | } |
| 673 | /* For stabs in sections, line numbers and block addresses |
| 674 | are offsets from the start of the function. */ |
| 675 | if (info->sections) |
| 676 | info->function_start_offset = value; |
| 677 | info->within_function = true; |
| 678 | } |
| 679 | |
| 680 | if (! parse_stab_string (dhandle, info, type, desc, value, string)) |
| 681 | return false; |
| 682 | } |
| 683 | break; |
| 684 | |
| 685 | case N_OPT: |
| 686 | if (string != NULL && strcmp (string, "gcc2_compiled.") == 0) |
| 687 | info->gcc_compiled = 2; |
| 688 | else if (string != NULL && strcmp (string, "gcc_compiled.") == 0) |
| 689 | info->gcc_compiled = 1; |
| 690 | else |
| 691 | info->n_opt_found = true; |
| 692 | break; |
| 693 | |
| 694 | case N_OBJ: |
| 695 | case N_ENDM: |
| 696 | case N_MAIN: |
| 697 | case N_WARNING: |
| 698 | break; |
| 699 | } |
| 700 | |
| 701 | return true; |
| 702 | } |
| 703 | |
| 704 | /* Parse the stabs string. */ |
| 705 | |
| 706 | static boolean |
| 707 | parse_stab_string (dhandle, info, stabtype, desc, value, string) |
| 708 | PTR dhandle; |
| 709 | struct stab_handle *info; |
| 710 | int stabtype; |
| 711 | int desc; |
| 712 | bfd_vma value; |
| 713 | const char *string; |
| 714 | { |
| 715 | const char *p; |
| 716 | char *name; |
| 717 | int type; |
| 718 | debug_type dtype; |
| 719 | boolean synonym; |
| 720 | boolean self_crossref; |
| 721 | unsigned int lineno; |
| 722 | debug_type *slot; |
| 723 | |
| 724 | p = strchr (string, ':'); |
| 725 | if (p == NULL) |
| 726 | return true; |
| 727 | |
| 728 | while (p[1] == ':') |
| 729 | { |
| 730 | p += 2; |
| 731 | p = strchr (p, ':'); |
| 732 | if (p == NULL) |
| 733 | { |
| 734 | bad_stab (string); |
| 735 | return false; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | /* GCC 2.x puts the line number in desc. SunOS apparently puts in |
| 740 | the number of bytes occupied by a type or object, which we |
| 741 | ignore. */ |
| 742 | if (info->gcc_compiled >= 2) |
| 743 | lineno = desc; |
| 744 | else |
| 745 | lineno = 0; |
| 746 | |
| 747 | /* FIXME: Sometimes the special C++ names start with '.'. */ |
| 748 | name = NULL; |
| 749 | if (string[0] == '$') |
| 750 | { |
| 751 | switch (string[1]) |
| 752 | { |
| 753 | case 't': |
| 754 | name = "this"; |
| 755 | break; |
| 756 | case 'v': |
| 757 | /* Was: name = "vptr"; */ |
| 758 | break; |
| 759 | case 'e': |
| 760 | name = "eh_throw"; |
| 761 | break; |
| 762 | case '_': |
| 763 | /* This was an anonymous type that was never fixed up. */ |
| 764 | break; |
| 765 | case 'X': |
| 766 | /* SunPRO (3.0 at least) static variable encoding. */ |
| 767 | break; |
| 768 | default: |
| 769 | warn_stab (string, _("unknown C++ encoded name")); |
| 770 | break; |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | if (name == NULL) |
| 775 | { |
| 776 | if (p == string || (string[0] == ' ' && p == string + 1)) |
| 777 | name = NULL; |
| 778 | else |
| 779 | name = savestring (string, p - string); |
| 780 | } |
| 781 | |
| 782 | ++p; |
| 783 | if (ISDIGIT (*p) || *p == '(' || *p == '-') |
| 784 | type = 'l'; |
| 785 | else |
| 786 | type = *p++; |
| 787 | |
| 788 | switch (type) |
| 789 | { |
| 790 | case 'c': |
| 791 | /* c is a special case, not followed by a type-number. |
| 792 | SYMBOL:c=iVALUE for an integer constant symbol. |
| 793 | SYMBOL:c=rVALUE for a floating constant symbol. |
| 794 | SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol. |
| 795 | e.g. "b:c=e6,0" for "const b = blob1" |
| 796 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ |
| 797 | if (*p != '=') |
| 798 | { |
| 799 | bad_stab (string); |
| 800 | return false; |
| 801 | } |
| 802 | ++p; |
| 803 | switch (*p++) |
| 804 | { |
| 805 | case 'r': |
| 806 | /* Floating point constant. */ |
| 807 | if (! debug_record_float_const (dhandle, name, atof (p))) |
| 808 | return false; |
| 809 | break; |
| 810 | case 'i': |
| 811 | /* Integer constant. */ |
| 812 | /* Defining integer constants this way is kind of silly, |
| 813 | since 'e' constants allows the compiler to give not only |
| 814 | the value, but the type as well. C has at least int, |
| 815 | long, unsigned int, and long long as constant types; |
| 816 | other languages probably should have at least unsigned as |
| 817 | well as signed constants. */ |
| 818 | if (! debug_record_int_const (dhandle, name, atoi (p))) |
| 819 | return false; |
| 820 | break; |
| 821 | case 'e': |
| 822 | /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value |
| 823 | can be represented as integral. |
| 824 | e.g. "b:c=e6,0" for "const b = blob1" |
| 825 | (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */ |
| 826 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, |
| 827 | &p, (debug_type **) NULL); |
| 828 | if (dtype == DEBUG_TYPE_NULL) |
| 829 | return false; |
| 830 | if (*p != ',') |
| 831 | { |
| 832 | bad_stab (string); |
| 833 | return false; |
| 834 | } |
| 835 | if (! debug_record_typed_const (dhandle, name, dtype, atoi (p))) |
| 836 | return false; |
| 837 | break; |
| 838 | default: |
| 839 | bad_stab (string); |
| 840 | return false; |
| 841 | } |
| 842 | |
| 843 | break; |
| 844 | |
| 845 | case 'C': |
| 846 | /* The name of a caught exception. */ |
| 847 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, |
| 848 | &p, (debug_type **) NULL); |
| 849 | if (dtype == DEBUG_TYPE_NULL) |
| 850 | return false; |
| 851 | if (! debug_record_label (dhandle, name, dtype, value)) |
| 852 | return false; |
| 853 | break; |
| 854 | |
| 855 | case 'f': |
| 856 | case 'F': |
| 857 | /* A function definition. */ |
| 858 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 859 | (debug_type **) NULL); |
| 860 | if (dtype == DEBUG_TYPE_NULL) |
| 861 | return false; |
| 862 | if (! debug_record_function (dhandle, name, dtype, type == 'F', value)) |
| 863 | return false; |
| 864 | |
| 865 | /* Sun acc puts declared types of arguments here. We don't care |
| 866 | about their actual types (FIXME -- we should remember the whole |
| 867 | function prototype), but the list may define some new types |
| 868 | that we have to remember, so we must scan it now. */ |
| 869 | while (*p == ';') |
| 870 | { |
| 871 | ++p; |
| 872 | if (parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 873 | (debug_type **) NULL) |
| 874 | == DEBUG_TYPE_NULL) |
| 875 | return false; |
| 876 | } |
| 877 | |
| 878 | break; |
| 879 | |
| 880 | case 'G': |
| 881 | { |
| 882 | char leading; |
| 883 | long c; |
| 884 | asymbol **ps; |
| 885 | |
| 886 | /* A global symbol. The value must be extracted from the |
| 887 | symbol table. */ |
| 888 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 889 | (debug_type **) NULL); |
| 890 | if (dtype == DEBUG_TYPE_NULL) |
| 891 | return false; |
| 892 | leading = bfd_get_symbol_leading_char (info->abfd); |
| 893 | for (c = info->symcount, ps = info->syms; c > 0; --c, ++ps) |
| 894 | { |
| 895 | const char *n; |
| 896 | |
| 897 | n = bfd_asymbol_name (*ps); |
| 898 | if (leading != '\0' && *n == leading) |
| 899 | ++n; |
| 900 | if (*n == *name && strcmp (n, name) == 0) |
| 901 | break; |
| 902 | } |
| 903 | if (c > 0) |
| 904 | value = bfd_asymbol_value (*ps); |
| 905 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_GLOBAL, |
| 906 | value)) |
| 907 | return false; |
| 908 | } |
| 909 | break; |
| 910 | |
| 911 | /* This case is faked by a conditional above, when there is no |
| 912 | code letter in the dbx data. Dbx data never actually |
| 913 | contains 'l'. */ |
| 914 | case 'l': |
| 915 | case 's': |
| 916 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 917 | (debug_type **) NULL); |
| 918 | if (dtype == DEBUG_TYPE_NULL) |
| 919 | return false; |
| 920 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, |
| 921 | value)) |
| 922 | return false; |
| 923 | break; |
| 924 | |
| 925 | case 'p': |
| 926 | /* A function parameter. */ |
| 927 | if (*p != 'F') |
| 928 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 929 | (debug_type **) NULL); |
| 930 | else |
| 931 | { |
| 932 | /* pF is a two-letter code that means a function parameter in |
| 933 | Fortran. The type-number specifies the type of the return |
| 934 | value. Translate it into a pointer-to-function type. */ |
| 935 | ++p; |
| 936 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 937 | (debug_type **) NULL); |
| 938 | if (dtype != DEBUG_TYPE_NULL) |
| 939 | { |
| 940 | debug_type ftype; |
| 941 | |
| 942 | ftype = debug_make_function_type (dhandle, dtype, |
| 943 | (debug_type *) NULL, false); |
| 944 | dtype = debug_make_pointer_type (dhandle, ftype); |
| 945 | } |
| 946 | } |
| 947 | if (dtype == DEBUG_TYPE_NULL) |
| 948 | return false; |
| 949 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_STACK, |
| 950 | value)) |
| 951 | return false; |
| 952 | |
| 953 | /* FIXME: At this point gdb considers rearranging the parameter |
| 954 | address on a big endian machine if it is smaller than an int. |
| 955 | We have no way to do that, since we don't really know much |
| 956 | about the target. */ |
| 957 | |
| 958 | break; |
| 959 | |
| 960 | case 'P': |
| 961 | if (stabtype == N_FUN) |
| 962 | { |
| 963 | /* Prototype of a function referenced by this file. */ |
| 964 | while (*p == ';') |
| 965 | { |
| 966 | ++p; |
| 967 | if (parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 968 | (debug_type **) NULL) |
| 969 | == DEBUG_TYPE_NULL) |
| 970 | return false; |
| 971 | } |
| 972 | break; |
| 973 | } |
| 974 | /* Fall through. */ |
| 975 | case 'R': |
| 976 | /* Parameter which is in a register. */ |
| 977 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 978 | (debug_type **) NULL); |
| 979 | if (dtype == DEBUG_TYPE_NULL) |
| 980 | return false; |
| 981 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REG, |
| 982 | value)) |
| 983 | return false; |
| 984 | break; |
| 985 | |
| 986 | case 'r': |
| 987 | /* Register variable (either global or local). */ |
| 988 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 989 | (debug_type **) NULL); |
| 990 | if (dtype == DEBUG_TYPE_NULL) |
| 991 | return false; |
| 992 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_REGISTER, |
| 993 | value)) |
| 994 | return false; |
| 995 | |
| 996 | /* FIXME: At this point gdb checks to combine pairs of 'p' and |
| 997 | 'r' stabs into a single 'P' stab. */ |
| 998 | |
| 999 | break; |
| 1000 | |
| 1001 | case 'S': |
| 1002 | /* Static symbol at top level of file */ |
| 1003 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 1004 | (debug_type **) NULL); |
| 1005 | if (dtype == DEBUG_TYPE_NULL) |
| 1006 | return false; |
| 1007 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_STATIC, |
| 1008 | value)) |
| 1009 | return false; |
| 1010 | break; |
| 1011 | |
| 1012 | case 't': |
| 1013 | /* A typedef. */ |
| 1014 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); |
| 1015 | if (dtype == DEBUG_TYPE_NULL) |
| 1016 | return false; |
| 1017 | if (name == NULL) |
| 1018 | { |
| 1019 | /* A nameless type. Nothing to do. */ |
| 1020 | return true; |
| 1021 | } |
| 1022 | |
| 1023 | dtype = debug_name_type (dhandle, name, dtype); |
| 1024 | if (dtype == DEBUG_TYPE_NULL) |
| 1025 | return false; |
| 1026 | |
| 1027 | if (slot != NULL) |
| 1028 | *slot = dtype; |
| 1029 | |
| 1030 | break; |
| 1031 | |
| 1032 | case 'T': |
| 1033 | /* Struct, union, or enum tag. For GNU C++, this can be be followed |
| 1034 | by 't' which means we are typedef'ing it as well. */ |
| 1035 | if (*p != 't') |
| 1036 | { |
| 1037 | synonym = false; |
| 1038 | /* FIXME: gdb sets synonym to true if the current language |
| 1039 | is C++. */ |
| 1040 | } |
| 1041 | else |
| 1042 | { |
| 1043 | synonym = true; |
| 1044 | ++p; |
| 1045 | } |
| 1046 | |
| 1047 | dtype = parse_stab_type (dhandle, info, name, &p, &slot); |
| 1048 | if (dtype == DEBUG_TYPE_NULL) |
| 1049 | return false; |
| 1050 | if (name == NULL) |
| 1051 | return true; |
| 1052 | |
| 1053 | /* INFO->SELF_CROSSREF is set by parse_stab_type if this type is |
| 1054 | a cross reference to itself. These are generated by some |
| 1055 | versions of g++. */ |
| 1056 | self_crossref = info->self_crossref; |
| 1057 | |
| 1058 | dtype = debug_tag_type (dhandle, name, dtype); |
| 1059 | if (dtype == DEBUG_TYPE_NULL) |
| 1060 | return false; |
| 1061 | if (slot != NULL) |
| 1062 | *slot = dtype; |
| 1063 | |
| 1064 | /* See if we have a cross reference to this tag which we can now |
| 1065 | fill in. Avoid filling in a cross reference to ourselves, |
| 1066 | because that would lead to circular debugging information. */ |
| 1067 | if (! self_crossref) |
| 1068 | { |
| 1069 | register struct stab_tag **pst; |
| 1070 | |
| 1071 | for (pst = &info->tags; *pst != NULL; pst = &(*pst)->next) |
| 1072 | { |
| 1073 | if ((*pst)->name[0] == name[0] |
| 1074 | && strcmp ((*pst)->name, name) == 0) |
| 1075 | { |
| 1076 | (*pst)->slot = dtype; |
| 1077 | *pst = (*pst)->next; |
| 1078 | break; |
| 1079 | } |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | if (synonym) |
| 1084 | { |
| 1085 | dtype = debug_name_type (dhandle, name, dtype); |
| 1086 | if (dtype == DEBUG_TYPE_NULL) |
| 1087 | return false; |
| 1088 | |
| 1089 | if (slot != NULL) |
| 1090 | *slot = dtype; |
| 1091 | } |
| 1092 | |
| 1093 | break; |
| 1094 | |
| 1095 | case 'V': |
| 1096 | /* Static symbol of local scope */ |
| 1097 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 1098 | (debug_type **) NULL); |
| 1099 | if (dtype == DEBUG_TYPE_NULL) |
| 1100 | return false; |
| 1101 | /* FIXME: gdb checks os9k_stabs here. */ |
| 1102 | if (! stab_record_variable (dhandle, info, name, dtype, |
| 1103 | DEBUG_LOCAL_STATIC, value)) |
| 1104 | return false; |
| 1105 | break; |
| 1106 | |
| 1107 | case 'v': |
| 1108 | /* Reference parameter. */ |
| 1109 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 1110 | (debug_type **) NULL); |
| 1111 | if (dtype == DEBUG_TYPE_NULL) |
| 1112 | return false; |
| 1113 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REFERENCE, |
| 1114 | value)) |
| 1115 | return false; |
| 1116 | break; |
| 1117 | |
| 1118 | case 'a': |
| 1119 | /* Reference parameter which is in a register. */ |
| 1120 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 1121 | (debug_type **) NULL); |
| 1122 | if (dtype == DEBUG_TYPE_NULL) |
| 1123 | return false; |
| 1124 | if (! debug_record_parameter (dhandle, name, dtype, DEBUG_PARM_REF_REG, |
| 1125 | value)) |
| 1126 | return false; |
| 1127 | break; |
| 1128 | |
| 1129 | case 'X': |
| 1130 | /* This is used by Sun FORTRAN for "function result value". |
| 1131 | Sun claims ("dbx and dbxtool interfaces", 2nd ed) |
| 1132 | that Pascal uses it too, but when I tried it Pascal used |
| 1133 | "x:3" (local symbol) instead. */ |
| 1134 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, &p, |
| 1135 | (debug_type **) NULL); |
| 1136 | if (dtype == DEBUG_TYPE_NULL) |
| 1137 | return false; |
| 1138 | if (! stab_record_variable (dhandle, info, name, dtype, DEBUG_LOCAL, |
| 1139 | value)) |
| 1140 | return false; |
| 1141 | break; |
| 1142 | |
| 1143 | default: |
| 1144 | bad_stab (string); |
| 1145 | return false; |
| 1146 | } |
| 1147 | |
| 1148 | /* FIXME: gdb converts structure values to structure pointers in a |
| 1149 | couple of cases, depending upon the target. */ |
| 1150 | |
| 1151 | return true; |
| 1152 | } |
| 1153 | |
| 1154 | /* Parse a stabs type. The typename argument is non-NULL if this is a |
| 1155 | typedef or a tag definition. The pp argument points to the stab |
| 1156 | string, and is updated. The slotp argument points to a place to |
| 1157 | store the slot used if the type is being defined. */ |
| 1158 | |
| 1159 | static debug_type |
| 1160 | parse_stab_type (dhandle, info, typename, pp, slotp) |
| 1161 | PTR dhandle; |
| 1162 | struct stab_handle *info; |
| 1163 | const char *typename; |
| 1164 | const char **pp; |
| 1165 | debug_type **slotp; |
| 1166 | { |
| 1167 | const char *orig; |
| 1168 | int typenums[2]; |
| 1169 | int size; |
| 1170 | boolean stringp; |
| 1171 | int descriptor; |
| 1172 | debug_type dtype; |
| 1173 | |
| 1174 | if (slotp != NULL) |
| 1175 | *slotp = NULL; |
| 1176 | |
| 1177 | orig = *pp; |
| 1178 | |
| 1179 | size = -1; |
| 1180 | stringp = false; |
| 1181 | |
| 1182 | info->self_crossref = false; |
| 1183 | |
| 1184 | /* Read type number if present. The type number may be omitted. |
| 1185 | for instance in a two-dimensional array declared with type |
| 1186 | "ar1;1;10;ar1;1;10;4". */ |
| 1187 | if (! ISDIGIT (**pp) && **pp != '(' && **pp != '-') |
| 1188 | { |
| 1189 | /* 'typenums=' not present, type is anonymous. Read and return |
| 1190 | the definition, but don't put it in the type vector. */ |
| 1191 | typenums[0] = typenums[1] = -1; |
| 1192 | } |
| 1193 | else |
| 1194 | { |
| 1195 | if (! parse_stab_type_number (pp, typenums)) |
| 1196 | return DEBUG_TYPE_NULL; |
| 1197 | |
| 1198 | if (**pp != '=') |
| 1199 | { |
| 1200 | /* Type is not being defined here. Either it already |
| 1201 | exists, or this is a forward reference to it. */ |
| 1202 | return stab_find_type (dhandle, info, typenums); |
| 1203 | } |
| 1204 | |
| 1205 | /* Only set the slot if the type is being defined. This means |
| 1206 | that the mapping from type numbers to types will only record |
| 1207 | the name of the typedef which defines a type. If we don't do |
| 1208 | this, then something like |
| 1209 | typedef int foo; |
| 1210 | int i; |
| 1211 | will record that i is of type foo. Unfortunately, stabs |
| 1212 | information is ambiguous about variable types. For this code, |
| 1213 | typedef int foo; |
| 1214 | int i; |
| 1215 | foo j; |
| 1216 | the stabs information records both i and j as having the same |
| 1217 | type. This could be fixed by patching the compiler. */ |
| 1218 | if (slotp != NULL && typenums[0] >= 0 && typenums[1] >= 0) |
| 1219 | *slotp = stab_find_slot (info, typenums); |
| 1220 | |
| 1221 | /* Type is being defined here. */ |
| 1222 | /* Skip the '='. */ |
| 1223 | ++*pp; |
| 1224 | |
| 1225 | while (**pp == '@') |
| 1226 | { |
| 1227 | const char *p = *pp + 1; |
| 1228 | const char *attr; |
| 1229 | |
| 1230 | if (ISDIGIT (*p) || *p == '(' || *p == '-') |
| 1231 | { |
| 1232 | /* Member type. */ |
| 1233 | break; |
| 1234 | } |
| 1235 | |
| 1236 | /* Type attributes. */ |
| 1237 | attr = p; |
| 1238 | |
| 1239 | for (; *p != ';'; ++p) |
| 1240 | { |
| 1241 | if (*p == '\0') |
| 1242 | { |
| 1243 | bad_stab (orig); |
| 1244 | return DEBUG_TYPE_NULL; |
| 1245 | } |
| 1246 | } |
| 1247 | *pp = p + 1; |
| 1248 | |
| 1249 | switch (*attr) |
| 1250 | { |
| 1251 | case 's': |
| 1252 | size = atoi (attr + 1); |
| 1253 | size /= 8; /* Size is in bits. We store it in bytes. */ |
| 1254 | if (size <= 0) |
| 1255 | size = -1; |
| 1256 | break; |
| 1257 | |
| 1258 | case 'S': |
| 1259 | stringp = true; |
| 1260 | break; |
| 1261 | |
| 1262 | default: |
| 1263 | /* Ignore unrecognized type attributes, so future |
| 1264 | compilers can invent new ones. */ |
| 1265 | break; |
| 1266 | } |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | descriptor = **pp; |
| 1271 | ++*pp; |
| 1272 | |
| 1273 | switch (descriptor) |
| 1274 | { |
| 1275 | case 'x': |
| 1276 | { |
| 1277 | enum debug_type_kind code; |
| 1278 | const char *q1, *q2, *p; |
| 1279 | |
| 1280 | /* A cross reference to another type. */ |
| 1281 | |
| 1282 | switch (**pp) |
| 1283 | { |
| 1284 | case 's': |
| 1285 | code = DEBUG_KIND_STRUCT; |
| 1286 | break; |
| 1287 | case 'u': |
| 1288 | code = DEBUG_KIND_UNION; |
| 1289 | break; |
| 1290 | case 'e': |
| 1291 | code = DEBUG_KIND_ENUM; |
| 1292 | break; |
| 1293 | default: |
| 1294 | /* Complain and keep going, so compilers can invent new |
| 1295 | cross-reference types. */ |
| 1296 | warn_stab (orig, _("unrecognized cross reference type")); |
| 1297 | code = DEBUG_KIND_STRUCT; |
| 1298 | break; |
| 1299 | } |
| 1300 | ++*pp; |
| 1301 | |
| 1302 | q1 = strchr (*pp, '<'); |
| 1303 | p = strchr (*pp, ':'); |
| 1304 | if (p == NULL) |
| 1305 | { |
| 1306 | bad_stab (orig); |
| 1307 | return DEBUG_TYPE_NULL; |
| 1308 | } |
| 1309 | if (q1 != NULL && p > q1 && p[1] == ':') |
| 1310 | { |
| 1311 | int nest = 0; |
| 1312 | |
| 1313 | for (q2 = q1; *q2 != '\0'; ++q2) |
| 1314 | { |
| 1315 | if (*q2 == '<') |
| 1316 | ++nest; |
| 1317 | else if (*q2 == '>') |
| 1318 | --nest; |
| 1319 | else if (*q2 == ':' && nest == 0) |
| 1320 | break; |
| 1321 | } |
| 1322 | p = q2; |
| 1323 | if (*p != ':') |
| 1324 | { |
| 1325 | bad_stab (orig); |
| 1326 | return DEBUG_TYPE_NULL; |
| 1327 | } |
| 1328 | } |
| 1329 | |
| 1330 | /* Some versions of g++ can emit stabs like |
| 1331 | fleep:T20=xsfleep: |
| 1332 | which define structures in terms of themselves. We need to |
| 1333 | tell the caller to avoid building a circular structure. */ |
| 1334 | if (typename != NULL |
| 1335 | && strncmp (typename, *pp, p - *pp) == 0 |
| 1336 | && typename[p - *pp] == '\0') |
| 1337 | info->self_crossref = true; |
| 1338 | |
| 1339 | dtype = stab_find_tagged_type (dhandle, info, *pp, p - *pp, code); |
| 1340 | |
| 1341 | *pp = p + 1; |
| 1342 | } |
| 1343 | break; |
| 1344 | |
| 1345 | case '-': |
| 1346 | case '0': |
| 1347 | case '1': |
| 1348 | case '2': |
| 1349 | case '3': |
| 1350 | case '4': |
| 1351 | case '5': |
| 1352 | case '6': |
| 1353 | case '7': |
| 1354 | case '8': |
| 1355 | case '9': |
| 1356 | case '(': |
| 1357 | { |
| 1358 | const char *hold; |
| 1359 | int xtypenums[2]; |
| 1360 | |
| 1361 | /* This type is defined as another type. */ |
| 1362 | |
| 1363 | (*pp)--; |
| 1364 | hold = *pp; |
| 1365 | |
| 1366 | /* Peek ahead at the number to detect void. */ |
| 1367 | if (! parse_stab_type_number (pp, xtypenums)) |
| 1368 | return DEBUG_TYPE_NULL; |
| 1369 | |
| 1370 | if (typenums[0] == xtypenums[0] && typenums[1] == xtypenums[1]) |
| 1371 | { |
| 1372 | /* This type is being defined as itself, which means that |
| 1373 | it is void. */ |
| 1374 | dtype = debug_make_void_type (dhandle); |
| 1375 | } |
| 1376 | else |
| 1377 | { |
| 1378 | *pp = hold; |
| 1379 | |
| 1380 | /* Go back to the number and have parse_stab_type get it. |
| 1381 | This means that we can deal with something like |
| 1382 | t(1,2)=(3,4)=... which the Lucid compiler uses. */ |
| 1383 | dtype = parse_stab_type (dhandle, info, (const char *) NULL, |
| 1384 | pp, (debug_type **) NULL); |
| 1385 | if (dtype == DEBUG_TYPE_NULL) |
| 1386 | return DEBUG_TYPE_NULL; |
| 1387 | } |
| 1388 | |
| 1389 | if (typenums[0] != -1) |
| 1390 | { |
| 1391 | if (! stab_record_type (dhandle, info, typenums, dtype)) |
| 1392 | return DEBUG_TYPE_NULL; |
| 1393 | } |
| 1394 | |
| 1395 | break; |
| 1396 | } |
| 1397 | |
| 1398 | case '*': |
| 1399 | dtype = debug_make_pointer_type (dhandle, |
| 1400 | parse_stab_type (dhandle, info, |
| 1401 | (const char *) NULL, |
| 1402 | pp, |
| 1403 | (debug_type **) NULL)); |
| 1404 | break; |
| 1405 | |
| 1406 | case '&': |
| 1407 | /* Reference to another type. */ |
| 1408 | dtype = (debug_make_reference_type |
| 1409 | (dhandle, |
| 1410 | parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 1411 | (debug_type **) NULL))); |
| 1412 | break; |
| 1413 | |
| 1414 | case 'f': |
| 1415 | /* Function returning another type. */ |
| 1416 | /* FIXME: gdb checks os9k_stabs here. */ |
| 1417 | dtype = (debug_make_function_type |
| 1418 | (dhandle, |
| 1419 | parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 1420 | (debug_type **) NULL), |
| 1421 | (debug_type *) NULL, false)); |
| 1422 | break; |
| 1423 | |
| 1424 | case 'k': |
| 1425 | /* Const qualifier on some type (Sun). */ |
| 1426 | /* FIXME: gdb accepts 'c' here if os9k_stabs. */ |
| 1427 | dtype = debug_make_const_type (dhandle, |
| 1428 | parse_stab_type (dhandle, info, |
| 1429 | (const char *) NULL, |
| 1430 | pp, |
| 1431 | (debug_type **) NULL)); |
| 1432 | break; |
| 1433 | |
| 1434 | case 'B': |
| 1435 | /* Volatile qual on some type (Sun). */ |
| 1436 | /* FIXME: gdb accepts 'i' here if os9k_stabs. */ |
| 1437 | dtype = (debug_make_volatile_type |
| 1438 | (dhandle, |
| 1439 | parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 1440 | (debug_type **) NULL))); |
| 1441 | break; |
| 1442 | |
| 1443 | case '@': |
| 1444 | /* Offset (class & variable) type. This is used for a pointer |
| 1445 | relative to an object. */ |
| 1446 | { |
| 1447 | debug_type domain; |
| 1448 | debug_type memtype; |
| 1449 | |
| 1450 | /* Member type. */ |
| 1451 | |
| 1452 | domain = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 1453 | (debug_type **) NULL); |
| 1454 | if (domain == DEBUG_TYPE_NULL) |
| 1455 | return DEBUG_TYPE_NULL; |
| 1456 | |
| 1457 | if (**pp != ',') |
| 1458 | { |
| 1459 | bad_stab (orig); |
| 1460 | return DEBUG_TYPE_NULL; |
| 1461 | } |
| 1462 | ++*pp; |
| 1463 | |
| 1464 | memtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 1465 | (debug_type **) NULL); |
| 1466 | if (memtype == DEBUG_TYPE_NULL) |
| 1467 | return DEBUG_TYPE_NULL; |
| 1468 | |
| 1469 | dtype = debug_make_offset_type (dhandle, domain, memtype); |
| 1470 | } |
| 1471 | break; |
| 1472 | |
| 1473 | case '#': |
| 1474 | /* Method (class & fn) type. */ |
| 1475 | if (**pp == '#') |
| 1476 | { |
| 1477 | debug_type return_type; |
| 1478 | |
| 1479 | ++*pp; |
| 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 | if (**pp != ';') |
| 1485 | { |
| 1486 | bad_stab (orig); |
| 1487 | return DEBUG_TYPE_NULL; |
| 1488 | } |
| 1489 | ++*pp; |
| 1490 | dtype = debug_make_method_type (dhandle, return_type, |
| 1491 | DEBUG_TYPE_NULL, |
| 1492 | (debug_type *) NULL, false); |
| 1493 | } |
| 1494 | else |
| 1495 | { |
| 1496 | debug_type domain; |
| 1497 | debug_type return_type; |
| 1498 | debug_type *args; |
| 1499 | unsigned int n; |
| 1500 | unsigned int alloc; |
| 1501 | boolean varargs; |
| 1502 | |
| 1503 | domain = parse_stab_type (dhandle, info, (const char *) NULL, |
| 1504 | pp, (debug_type **) NULL); |
| 1505 | if (domain == DEBUG_TYPE_NULL) |
| 1506 | return DEBUG_TYPE_NULL; |
| 1507 | |
| 1508 | if (**pp != ',') |
| 1509 | { |
| 1510 | bad_stab (orig); |
| 1511 | return DEBUG_TYPE_NULL; |
| 1512 | } |
| 1513 | ++*pp; |
| 1514 | |
| 1515 | return_type = parse_stab_type (dhandle, info, (const char *) NULL, |
| 1516 | pp, (debug_type **) NULL); |
| 1517 | if (return_type == DEBUG_TYPE_NULL) |
| 1518 | return DEBUG_TYPE_NULL; |
| 1519 | |
| 1520 | alloc = 10; |
| 1521 | args = (debug_type *) xmalloc (alloc * sizeof *args); |
| 1522 | n = 0; |
| 1523 | while (**pp != ';') |
| 1524 | { |
| 1525 | if (**pp != ',') |
| 1526 | { |
| 1527 | bad_stab (orig); |
| 1528 | return DEBUG_TYPE_NULL; |
| 1529 | } |
| 1530 | ++*pp; |
| 1531 | |
| 1532 | if (n + 1 >= alloc) |
| 1533 | { |
| 1534 | alloc += 10; |
| 1535 | args = ((debug_type *) |
| 1536 | xrealloc ((PTR) args, alloc * sizeof *args)); |
| 1537 | } |
| 1538 | |
| 1539 | args[n] = parse_stab_type (dhandle, info, (const char *) NULL, |
| 1540 | pp, (debug_type **) NULL); |
| 1541 | if (args[n] == DEBUG_TYPE_NULL) |
| 1542 | return DEBUG_TYPE_NULL; |
| 1543 | ++n; |
| 1544 | } |
| 1545 | ++*pp; |
| 1546 | |
| 1547 | /* If the last type is not void, then this function takes a |
| 1548 | variable number of arguments. Otherwise, we must strip |
| 1549 | the void type. */ |
| 1550 | if (n == 0 |
| 1551 | || debug_get_type_kind (dhandle, args[n - 1]) != DEBUG_KIND_VOID) |
| 1552 | varargs = true; |
| 1553 | else |
| 1554 | { |
| 1555 | --n; |
| 1556 | varargs = false; |
| 1557 | } |
| 1558 | |
| 1559 | args[n] = DEBUG_TYPE_NULL; |
| 1560 | |
| 1561 | dtype = debug_make_method_type (dhandle, return_type, domain, args, |
| 1562 | varargs); |
| 1563 | } |
| 1564 | break; |
| 1565 | |
| 1566 | case 'r': |
| 1567 | /* Range type. */ |
| 1568 | dtype = parse_stab_range_type (dhandle, info, typename, pp, typenums); |
| 1569 | break; |
| 1570 | |
| 1571 | case 'b': |
| 1572 | /* FIXME: gdb checks os9k_stabs here. */ |
| 1573 | /* Sun ACC builtin int type. */ |
| 1574 | dtype = parse_stab_sun_builtin_type (dhandle, pp); |
| 1575 | break; |
| 1576 | |
| 1577 | case 'R': |
| 1578 | /* Sun ACC builtin float type. */ |
| 1579 | dtype = parse_stab_sun_floating_type (dhandle, pp); |
| 1580 | break; |
| 1581 | |
| 1582 | case 'e': |
| 1583 | /* Enumeration type. */ |
| 1584 | dtype = parse_stab_enum_type (dhandle, pp); |
| 1585 | break; |
| 1586 | |
| 1587 | case 's': |
| 1588 | case 'u': |
| 1589 | /* Struct or union type. */ |
| 1590 | dtype = parse_stab_struct_type (dhandle, info, typename, pp, |
| 1591 | descriptor == 's', typenums); |
| 1592 | break; |
| 1593 | |
| 1594 | case 'a': |
| 1595 | /* Array type. */ |
| 1596 | if (**pp != 'r') |
| 1597 | { |
| 1598 | bad_stab (orig); |
| 1599 | return DEBUG_TYPE_NULL; |
| 1600 | } |
| 1601 | ++*pp; |
| 1602 | |
| 1603 | dtype = parse_stab_array_type (dhandle, info, pp, stringp); |
| 1604 | break; |
| 1605 | |
| 1606 | case 'S': |
| 1607 | dtype = debug_make_set_type (dhandle, |
| 1608 | parse_stab_type (dhandle, info, |
| 1609 | (const char *) NULL, |
| 1610 | pp, |
| 1611 | (debug_type **) NULL), |
| 1612 | stringp); |
| 1613 | break; |
| 1614 | |
| 1615 | default: |
| 1616 | bad_stab (orig); |
| 1617 | return DEBUG_TYPE_NULL; |
| 1618 | } |
| 1619 | |
| 1620 | if (dtype == DEBUG_TYPE_NULL) |
| 1621 | return DEBUG_TYPE_NULL; |
| 1622 | |
| 1623 | if (typenums[0] != -1) |
| 1624 | { |
| 1625 | if (! stab_record_type (dhandle, info, typenums, dtype)) |
| 1626 | return DEBUG_TYPE_NULL; |
| 1627 | } |
| 1628 | |
| 1629 | if (size != -1) |
| 1630 | { |
| 1631 | if (! debug_record_type_size (dhandle, dtype, (unsigned int) size)) |
| 1632 | return DEBUG_TYPE_NULL; |
| 1633 | } |
| 1634 | |
| 1635 | return dtype; |
| 1636 | } |
| 1637 | |
| 1638 | /* Read a number by which a type is referred to in dbx data, or |
| 1639 | perhaps read a pair (FILENUM, TYPENUM) in parentheses. Just a |
| 1640 | single number N is equivalent to (0,N). Return the two numbers by |
| 1641 | storing them in the vector TYPENUMS. */ |
| 1642 | |
| 1643 | static boolean |
| 1644 | parse_stab_type_number (pp, typenums) |
| 1645 | const char **pp; |
| 1646 | int *typenums; |
| 1647 | { |
| 1648 | const char *orig; |
| 1649 | |
| 1650 | orig = *pp; |
| 1651 | |
| 1652 | if (**pp != '(') |
| 1653 | { |
| 1654 | typenums[0] = 0; |
| 1655 | typenums[1] = (int) parse_number (pp, (boolean *) NULL); |
| 1656 | } |
| 1657 | else |
| 1658 | { |
| 1659 | ++*pp; |
| 1660 | typenums[0] = (int) parse_number (pp, (boolean *) NULL); |
| 1661 | if (**pp != ',') |
| 1662 | { |
| 1663 | bad_stab (orig); |
| 1664 | return false; |
| 1665 | } |
| 1666 | ++*pp; |
| 1667 | typenums[1] = (int) parse_number (pp, (boolean *) NULL); |
| 1668 | if (**pp != ')') |
| 1669 | { |
| 1670 | bad_stab (orig); |
| 1671 | return false; |
| 1672 | } |
| 1673 | ++*pp; |
| 1674 | } |
| 1675 | |
| 1676 | return true; |
| 1677 | } |
| 1678 | |
| 1679 | /* Parse a range type. */ |
| 1680 | |
| 1681 | static debug_type |
| 1682 | parse_stab_range_type (dhandle, info, typename, pp, typenums) |
| 1683 | PTR dhandle; |
| 1684 | struct stab_handle *info; |
| 1685 | const char *typename; |
| 1686 | const char **pp; |
| 1687 | const int *typenums; |
| 1688 | { |
| 1689 | const char *orig; |
| 1690 | int rangenums[2]; |
| 1691 | boolean self_subrange; |
| 1692 | debug_type index_type; |
| 1693 | const char *s2, *s3; |
| 1694 | bfd_signed_vma n2, n3; |
| 1695 | boolean ov2, ov3; |
| 1696 | |
| 1697 | orig = *pp; |
| 1698 | |
| 1699 | index_type = DEBUG_TYPE_NULL; |
| 1700 | |
| 1701 | /* First comes a type we are a subrange of. |
| 1702 | In C it is usually 0, 1 or the type being defined. */ |
| 1703 | if (! parse_stab_type_number (pp, rangenums)) |
| 1704 | return DEBUG_TYPE_NULL; |
| 1705 | |
| 1706 | self_subrange = (rangenums[0] == typenums[0] |
| 1707 | && rangenums[1] == typenums[1]); |
| 1708 | |
| 1709 | if (**pp == '=') |
| 1710 | { |
| 1711 | *pp = orig; |
| 1712 | index_type = parse_stab_type (dhandle, info, (const char *) NULL, |
| 1713 | pp, (debug_type **) NULL); |
| 1714 | if (index_type == DEBUG_TYPE_NULL) |
| 1715 | return DEBUG_TYPE_NULL; |
| 1716 | } |
| 1717 | |
| 1718 | if (**pp == ';') |
| 1719 | ++*pp; |
| 1720 | |
| 1721 | /* The remaining two operands are usually lower and upper bounds of |
| 1722 | the range. But in some special cases they mean something else. */ |
| 1723 | s2 = *pp; |
| 1724 | n2 = parse_number (pp, &ov2); |
| 1725 | if (**pp != ';') |
| 1726 | { |
| 1727 | bad_stab (orig); |
| 1728 | return DEBUG_TYPE_NULL; |
| 1729 | } |
| 1730 | ++*pp; |
| 1731 | |
| 1732 | s3 = *pp; |
| 1733 | n3 = parse_number (pp, &ov3); |
| 1734 | if (**pp != ';') |
| 1735 | { |
| 1736 | bad_stab (orig); |
| 1737 | return DEBUG_TYPE_NULL; |
| 1738 | } |
| 1739 | ++*pp; |
| 1740 | |
| 1741 | if (ov2 || ov3) |
| 1742 | { |
| 1743 | /* gcc will emit range stabs for long long types. Handle this |
| 1744 | as a special case. FIXME: This needs to be more general. */ |
| 1745 | #define LLLOW "01000000000000000000000;" |
| 1746 | #define LLHIGH "0777777777777777777777;" |
| 1747 | #define ULLHIGH "01777777777777777777777;" |
| 1748 | if (index_type == DEBUG_TYPE_NULL) |
| 1749 | { |
| 1750 | if (strncmp (s2, LLLOW, sizeof LLLOW - 1) == 0 |
| 1751 | && strncmp (s3, LLHIGH, sizeof LLHIGH - 1) == 0) |
| 1752 | return debug_make_int_type (dhandle, 8, false); |
| 1753 | if (! ov2 |
| 1754 | && n2 == 0 |
| 1755 | && strncmp (s3, ULLHIGH, sizeof ULLHIGH - 1) == 0) |
| 1756 | return debug_make_int_type (dhandle, 8, true); |
| 1757 | } |
| 1758 | |
| 1759 | warn_stab (orig, _("numeric overflow")); |
| 1760 | } |
| 1761 | |
| 1762 | if (index_type == DEBUG_TYPE_NULL) |
| 1763 | { |
| 1764 | /* A type defined as a subrange of itself, with both bounds 0, |
| 1765 | is void. */ |
| 1766 | if (self_subrange && n2 == 0 && n3 == 0) |
| 1767 | return debug_make_void_type (dhandle); |
| 1768 | |
| 1769 | /* A type defined as a subrange of itself, with n2 positive and |
| 1770 | n3 zero, is a complex type, and n2 is the number of bytes. */ |
| 1771 | if (self_subrange && n3 == 0 && n2 > 0) |
| 1772 | return debug_make_complex_type (dhandle, n2); |
| 1773 | |
| 1774 | /* If n3 is zero and n2 is positive, this is a floating point |
| 1775 | type, and n2 is the number of bytes. */ |
| 1776 | if (n3 == 0 && n2 > 0) |
| 1777 | return debug_make_float_type (dhandle, n2); |
| 1778 | |
| 1779 | /* If the upper bound is -1, this is an unsigned int. */ |
| 1780 | if (n2 == 0 && n3 == -1) |
| 1781 | { |
| 1782 | /* When gcc is used with -gstabs, but not -gstabs+, it will emit |
| 1783 | long long int:t6=r1;0;-1; |
| 1784 | long long unsigned int:t7=r1;0;-1; |
| 1785 | We hack here to handle this reasonably. */ |
| 1786 | if (typename != NULL) |
| 1787 | { |
| 1788 | if (strcmp (typename, "long long int") == 0) |
| 1789 | return debug_make_int_type (dhandle, 8, false); |
| 1790 | else if (strcmp (typename, "long long unsigned int") == 0) |
| 1791 | return debug_make_int_type (dhandle, 8, true); |
| 1792 | } |
| 1793 | /* FIXME: The size here really depends upon the target. */ |
| 1794 | return debug_make_int_type (dhandle, 4, true); |
| 1795 | } |
| 1796 | |
| 1797 | /* A range of 0 to 127 is char. */ |
| 1798 | if (self_subrange && n2 == 0 && n3 == 127) |
| 1799 | return debug_make_int_type (dhandle, 1, false); |
| 1800 | |
| 1801 | /* FIXME: gdb checks for the language CHILL here. */ |
| 1802 | |
| 1803 | if (n2 == 0) |
| 1804 | { |
| 1805 | if (n3 < 0) |
| 1806 | return debug_make_int_type (dhandle, - n3, true); |
| 1807 | else if (n3 == 0xff) |
| 1808 | return debug_make_int_type (dhandle, 1, true); |
| 1809 | else if (n3 == 0xffff) |
| 1810 | return debug_make_int_type (dhandle, 2, true); |
| 1811 | else if (n3 == (bfd_signed_vma) 0xffffffff) |
| 1812 | return debug_make_int_type (dhandle, 4, true); |
| 1813 | #ifdef BFD64 |
| 1814 | else if (n3 == ((((bfd_signed_vma) 0xffffffff) << 32) | 0xffffffff)) |
| 1815 | return debug_make_int_type (dhandle, 8, true); |
| 1816 | #endif |
| 1817 | } |
| 1818 | else if (n3 == 0 |
| 1819 | && n2 < 0 |
| 1820 | && (self_subrange || n2 == -8)) |
| 1821 | return debug_make_int_type (dhandle, - n2, true); |
| 1822 | else if (n2 == - n3 - 1 || n2 == n3 + 1) |
| 1823 | { |
| 1824 | if (n3 == 0x7f) |
| 1825 | return debug_make_int_type (dhandle, 1, false); |
| 1826 | else if (n3 == 0x7fff) |
| 1827 | return debug_make_int_type (dhandle, 2, false); |
| 1828 | else if (n3 == 0x7fffffff) |
| 1829 | return debug_make_int_type (dhandle, 4, false); |
| 1830 | #ifdef BFD64 |
| 1831 | else if (n3 == ((((bfd_vma) 0x7fffffff) << 32) | 0xffffffff)) |
| 1832 | return debug_make_int_type (dhandle, 8, false); |
| 1833 | #endif |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | /* At this point I don't have the faintest idea how to deal with a |
| 1838 | self_subrange type; I'm going to assume that this is used as an |
| 1839 | idiom, and that all of them are special cases. So . . . */ |
| 1840 | if (self_subrange) |
| 1841 | { |
| 1842 | bad_stab (orig); |
| 1843 | return DEBUG_TYPE_NULL; |
| 1844 | } |
| 1845 | |
| 1846 | index_type = stab_find_type (dhandle, info, rangenums); |
| 1847 | if (index_type == DEBUG_TYPE_NULL) |
| 1848 | { |
| 1849 | /* Does this actually ever happen? Is that why we are worrying |
| 1850 | about dealing with it rather than just calling error_type? */ |
| 1851 | warn_stab (orig, _("missing index type")); |
| 1852 | index_type = debug_make_int_type (dhandle, 4, false); |
| 1853 | } |
| 1854 | |
| 1855 | return debug_make_range_type (dhandle, index_type, n2, n3); |
| 1856 | } |
| 1857 | |
| 1858 | /* Sun's ACC uses a somewhat saner method for specifying the builtin |
| 1859 | typedefs in every file (for int, long, etc): |
| 1860 | |
| 1861 | type = b <signed> <width>; <offset>; <nbits> |
| 1862 | signed = u or s. Possible c in addition to u or s (for char?). |
| 1863 | offset = offset from high order bit to start bit of type. |
| 1864 | width is # bytes in object of this type, nbits is # bits in type. |
| 1865 | |
| 1866 | The width/offset stuff appears to be for small objects stored in |
| 1867 | larger ones (e.g. `shorts' in `int' registers). We ignore it for now, |
| 1868 | FIXME. */ |
| 1869 | |
| 1870 | static debug_type |
| 1871 | parse_stab_sun_builtin_type (dhandle, pp) |
| 1872 | PTR dhandle; |
| 1873 | const char **pp; |
| 1874 | { |
| 1875 | const char *orig; |
| 1876 | boolean unsignedp; |
| 1877 | bfd_vma bits; |
| 1878 | |
| 1879 | orig = *pp; |
| 1880 | |
| 1881 | switch (**pp) |
| 1882 | { |
| 1883 | case 's': |
| 1884 | unsignedp = false; |
| 1885 | break; |
| 1886 | case 'u': |
| 1887 | unsignedp = true; |
| 1888 | break; |
| 1889 | default: |
| 1890 | bad_stab (orig); |
| 1891 | return DEBUG_TYPE_NULL; |
| 1892 | } |
| 1893 | ++*pp; |
| 1894 | |
| 1895 | /* For some odd reason, all forms of char put a c here. This is strange |
| 1896 | because no other type has this honor. We can safely ignore this because |
| 1897 | we actually determine 'char'acterness by the number of bits specified in |
| 1898 | the descriptor. */ |
| 1899 | if (**pp == 'c') |
| 1900 | ++*pp; |
| 1901 | |
| 1902 | /* The first number appears to be the number of bytes occupied |
| 1903 | by this type, except that unsigned short is 4 instead of 2. |
| 1904 | Since this information is redundant with the third number, |
| 1905 | we will ignore it. */ |
| 1906 | (void) parse_number (pp, (boolean *) NULL); |
| 1907 | if (**pp != ';') |
| 1908 | { |
| 1909 | bad_stab (orig); |
| 1910 | return DEBUG_TYPE_NULL; |
| 1911 | } |
| 1912 | ++*pp; |
| 1913 | |
| 1914 | /* The second number is always 0, so ignore it too. */ |
| 1915 | (void) parse_number (pp, (boolean *) NULL); |
| 1916 | if (**pp != ';') |
| 1917 | { |
| 1918 | bad_stab (orig); |
| 1919 | return DEBUG_TYPE_NULL; |
| 1920 | } |
| 1921 | ++*pp; |
| 1922 | |
| 1923 | /* The third number is the number of bits for this type. */ |
| 1924 | bits = parse_number (pp, (boolean *) NULL); |
| 1925 | |
| 1926 | /* The type *should* end with a semicolon. If it are embedded |
| 1927 | in a larger type the semicolon may be the only way to know where |
| 1928 | the type ends. If this type is at the end of the stabstring we |
| 1929 | can deal with the omitted semicolon (but we don't have to like |
| 1930 | it). Don't bother to complain(), Sun's compiler omits the semicolon |
| 1931 | for "void". */ |
| 1932 | if (**pp == ';') |
| 1933 | ++*pp; |
| 1934 | |
| 1935 | if (bits == 0) |
| 1936 | return debug_make_void_type (dhandle); |
| 1937 | |
| 1938 | return debug_make_int_type (dhandle, bits / 8, unsignedp); |
| 1939 | } |
| 1940 | |
| 1941 | /* Parse a builtin floating type generated by the Sun compiler. */ |
| 1942 | |
| 1943 | static debug_type |
| 1944 | parse_stab_sun_floating_type (dhandle, pp) |
| 1945 | PTR dhandle; |
| 1946 | const char **pp; |
| 1947 | { |
| 1948 | const char *orig; |
| 1949 | bfd_vma details; |
| 1950 | bfd_vma bytes; |
| 1951 | |
| 1952 | orig = *pp; |
| 1953 | |
| 1954 | /* The first number has more details about the type, for example |
| 1955 | FN_COMPLEX. */ |
| 1956 | details = parse_number (pp, (boolean *) NULL); |
| 1957 | if (**pp != ';') |
| 1958 | { |
| 1959 | bad_stab (orig); |
| 1960 | return DEBUG_TYPE_NULL; |
| 1961 | } |
| 1962 | |
| 1963 | /* The second number is the number of bytes occupied by this type */ |
| 1964 | bytes = parse_number (pp, (boolean *) NULL); |
| 1965 | if (**pp != ';') |
| 1966 | { |
| 1967 | bad_stab (orig); |
| 1968 | return DEBUG_TYPE_NULL; |
| 1969 | } |
| 1970 | |
| 1971 | if (details == NF_COMPLEX |
| 1972 | || details == NF_COMPLEX16 |
| 1973 | || details == NF_COMPLEX32) |
| 1974 | return debug_make_complex_type (dhandle, bytes); |
| 1975 | |
| 1976 | return debug_make_float_type (dhandle, bytes); |
| 1977 | } |
| 1978 | |
| 1979 | /* Handle an enum type. */ |
| 1980 | |
| 1981 | static debug_type |
| 1982 | parse_stab_enum_type (dhandle, pp) |
| 1983 | PTR dhandle; |
| 1984 | const char **pp; |
| 1985 | { |
| 1986 | const char *orig; |
| 1987 | const char **names; |
| 1988 | bfd_signed_vma *values; |
| 1989 | unsigned int n; |
| 1990 | unsigned int alloc; |
| 1991 | |
| 1992 | orig = *pp; |
| 1993 | |
| 1994 | /* FIXME: gdb checks os9k_stabs here. */ |
| 1995 | |
| 1996 | /* The aix4 compiler emits an extra field before the enum members; |
| 1997 | my guess is it's a type of some sort. Just ignore it. */ |
| 1998 | if (**pp == '-') |
| 1999 | { |
| 2000 | while (**pp != ':') |
| 2001 | ++*pp; |
| 2002 | ++*pp; |
| 2003 | } |
| 2004 | |
| 2005 | /* Read the value-names and their values. |
| 2006 | The input syntax is NAME:VALUE,NAME:VALUE, and so on. |
| 2007 | A semicolon or comma instead of a NAME means the end. */ |
| 2008 | alloc = 10; |
| 2009 | names = (const char **) xmalloc (alloc * sizeof *names); |
| 2010 | values = (bfd_signed_vma *) xmalloc (alloc * sizeof *values); |
| 2011 | n = 0; |
| 2012 | while (**pp != '\0' && **pp != ';' && **pp != ',') |
| 2013 | { |
| 2014 | const char *p; |
| 2015 | char *name; |
| 2016 | bfd_signed_vma val; |
| 2017 | |
| 2018 | p = *pp; |
| 2019 | while (*p != ':') |
| 2020 | ++p; |
| 2021 | |
| 2022 | name = savestring (*pp, p - *pp); |
| 2023 | |
| 2024 | *pp = p + 1; |
| 2025 | val = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); |
| 2026 | if (**pp != ',') |
| 2027 | { |
| 2028 | bad_stab (orig); |
| 2029 | return DEBUG_TYPE_NULL; |
| 2030 | } |
| 2031 | ++*pp; |
| 2032 | |
| 2033 | if (n + 1 >= alloc) |
| 2034 | { |
| 2035 | alloc += 10; |
| 2036 | names = ((const char **) |
| 2037 | xrealloc ((PTR) names, alloc * sizeof *names)); |
| 2038 | values = ((bfd_signed_vma *) |
| 2039 | xrealloc ((PTR) values, alloc * sizeof *values)); |
| 2040 | } |
| 2041 | |
| 2042 | names[n] = name; |
| 2043 | values[n] = val; |
| 2044 | ++n; |
| 2045 | } |
| 2046 | |
| 2047 | names[n] = NULL; |
| 2048 | values[n] = 0; |
| 2049 | |
| 2050 | if (**pp == ';') |
| 2051 | ++*pp; |
| 2052 | |
| 2053 | return debug_make_enum_type (dhandle, names, values); |
| 2054 | } |
| 2055 | |
| 2056 | /* Read the description of a structure (or union type) and return an object |
| 2057 | describing the type. |
| 2058 | |
| 2059 | PP points to a character pointer that points to the next unconsumed token |
| 2060 | in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;", |
| 2061 | *PP will point to "4a:1,0,32;;". */ |
| 2062 | |
| 2063 | static debug_type |
| 2064 | parse_stab_struct_type (dhandle, info, tagname, pp, structp, typenums) |
| 2065 | PTR dhandle; |
| 2066 | struct stab_handle *info; |
| 2067 | const char *tagname; |
| 2068 | const char **pp; |
| 2069 | boolean structp; |
| 2070 | const int *typenums; |
| 2071 | { |
| 2072 | const char *orig; |
| 2073 | bfd_vma size; |
| 2074 | debug_baseclass *baseclasses; |
| 2075 | debug_field *fields; |
| 2076 | boolean statics; |
| 2077 | debug_method *methods; |
| 2078 | debug_type vptrbase; |
| 2079 | boolean ownvptr; |
| 2080 | |
| 2081 | orig = *pp; |
| 2082 | |
| 2083 | /* Get the size. */ |
| 2084 | size = parse_number (pp, (boolean *) NULL); |
| 2085 | |
| 2086 | /* Get the other information. */ |
| 2087 | if (! parse_stab_baseclasses (dhandle, info, pp, &baseclasses) |
| 2088 | || ! parse_stab_struct_fields (dhandle, info, pp, &fields, &statics) |
| 2089 | || ! parse_stab_members (dhandle, info, tagname, pp, typenums, &methods) |
| 2090 | || ! parse_stab_tilde_field (dhandle, info, pp, typenums, &vptrbase, |
| 2091 | &ownvptr)) |
| 2092 | return DEBUG_TYPE_NULL; |
| 2093 | |
| 2094 | if (! statics |
| 2095 | && baseclasses == NULL |
| 2096 | && methods == NULL |
| 2097 | && vptrbase == DEBUG_TYPE_NULL |
| 2098 | && ! ownvptr) |
| 2099 | return debug_make_struct_type (dhandle, structp, size, fields); |
| 2100 | |
| 2101 | return debug_make_object_type (dhandle, structp, size, fields, baseclasses, |
| 2102 | methods, vptrbase, ownvptr); |
| 2103 | } |
| 2104 | |
| 2105 | /* The stabs for C++ derived classes contain baseclass information which |
| 2106 | is marked by a '!' character after the total size. This function is |
| 2107 | called when we encounter the baseclass marker, and slurps up all the |
| 2108 | baseclass information. |
| 2109 | |
| 2110 | Immediately following the '!' marker is the number of base classes that |
| 2111 | the class is derived from, followed by information for each base class. |
| 2112 | For each base class, there are two visibility specifiers, a bit offset |
| 2113 | to the base class information within the derived class, a reference to |
| 2114 | the type for the base class, and a terminating semicolon. |
| 2115 | |
| 2116 | A typical example, with two base classes, would be "!2,020,19;0264,21;". |
| 2117 | ^^ ^ ^ ^ ^ ^ ^ |
| 2118 | Baseclass information marker __________________|| | | | | | | |
| 2119 | Number of baseclasses __________________________| | | | | | | |
| 2120 | Visibility specifiers (2) ________________________| | | | | | |
| 2121 | Offset in bits from start of class _________________| | | | | |
| 2122 | Type number for base class ___________________________| | | | |
| 2123 | Visibility specifiers (2) _______________________________| | | |
| 2124 | Offset in bits from start of class ________________________| | |
| 2125 | Type number of base class ____________________________________| |
| 2126 | |
| 2127 | Return true for success, false for failure. */ |
| 2128 | |
| 2129 | static boolean |
| 2130 | parse_stab_baseclasses (dhandle, info, pp, retp) |
| 2131 | PTR dhandle; |
| 2132 | struct stab_handle *info; |
| 2133 | const char **pp; |
| 2134 | debug_baseclass **retp; |
| 2135 | { |
| 2136 | const char *orig; |
| 2137 | unsigned int c, i; |
| 2138 | debug_baseclass *classes; |
| 2139 | |
| 2140 | *retp = NULL; |
| 2141 | |
| 2142 | orig = *pp; |
| 2143 | |
| 2144 | if (**pp != '!') |
| 2145 | { |
| 2146 | /* No base classes. */ |
| 2147 | return true; |
| 2148 | } |
| 2149 | ++*pp; |
| 2150 | |
| 2151 | c = (unsigned int) parse_number (pp, (boolean *) NULL); |
| 2152 | |
| 2153 | if (**pp != ',') |
| 2154 | { |
| 2155 | bad_stab (orig); |
| 2156 | return false; |
| 2157 | } |
| 2158 | ++*pp; |
| 2159 | |
| 2160 | classes = (debug_baseclass *) xmalloc ((c + 1) * sizeof (**retp)); |
| 2161 | |
| 2162 | for (i = 0; i < c; i++) |
| 2163 | { |
| 2164 | boolean virtual; |
| 2165 | enum debug_visibility visibility; |
| 2166 | bfd_vma bitpos; |
| 2167 | debug_type type; |
| 2168 | |
| 2169 | switch (**pp) |
| 2170 | { |
| 2171 | case '0': |
| 2172 | virtual = false; |
| 2173 | break; |
| 2174 | case '1': |
| 2175 | virtual = true; |
| 2176 | break; |
| 2177 | default: |
| 2178 | warn_stab (orig, _("unknown virtual character for baseclass")); |
| 2179 | virtual = false; |
| 2180 | break; |
| 2181 | } |
| 2182 | ++*pp; |
| 2183 | |
| 2184 | switch (**pp) |
| 2185 | { |
| 2186 | case '0': |
| 2187 | visibility = DEBUG_VISIBILITY_PRIVATE; |
| 2188 | break; |
| 2189 | case '1': |
| 2190 | visibility = DEBUG_VISIBILITY_PROTECTED; |
| 2191 | break; |
| 2192 | case '2': |
| 2193 | visibility = DEBUG_VISIBILITY_PUBLIC; |
| 2194 | break; |
| 2195 | default: |
| 2196 | warn_stab (orig, _("unknown visibility character for baseclass")); |
| 2197 | visibility = DEBUG_VISIBILITY_PUBLIC; |
| 2198 | break; |
| 2199 | } |
| 2200 | ++*pp; |
| 2201 | |
| 2202 | /* The remaining value is the bit offset of the portion of the |
| 2203 | object corresponding to this baseclass. Always zero in the |
| 2204 | absence of multiple inheritance. */ |
| 2205 | bitpos = parse_number (pp, (boolean *) NULL); |
| 2206 | if (**pp != ',') |
| 2207 | { |
| 2208 | bad_stab (orig); |
| 2209 | return false; |
| 2210 | } |
| 2211 | ++*pp; |
| 2212 | |
| 2213 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 2214 | (debug_type **) NULL); |
| 2215 | if (type == DEBUG_TYPE_NULL) |
| 2216 | return false; |
| 2217 | |
| 2218 | classes[i] = debug_make_baseclass (dhandle, type, bitpos, virtual, |
| 2219 | visibility); |
| 2220 | if (classes[i] == DEBUG_BASECLASS_NULL) |
| 2221 | return false; |
| 2222 | |
| 2223 | if (**pp != ';') |
| 2224 | return false; |
| 2225 | ++*pp; |
| 2226 | } |
| 2227 | |
| 2228 | classes[i] = DEBUG_BASECLASS_NULL; |
| 2229 | |
| 2230 | *retp = classes; |
| 2231 | |
| 2232 | return true; |
| 2233 | } |
| 2234 | |
| 2235 | /* Read struct or class data fields. They have the form: |
| 2236 | |
| 2237 | NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ; |
| 2238 | |
| 2239 | At the end, we see a semicolon instead of a field. |
| 2240 | |
| 2241 | In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for |
| 2242 | a static field. |
| 2243 | |
| 2244 | The optional VISIBILITY is one of: |
| 2245 | |
| 2246 | '/0' (VISIBILITY_PRIVATE) |
| 2247 | '/1' (VISIBILITY_PROTECTED) |
| 2248 | '/2' (VISIBILITY_PUBLIC) |
| 2249 | '/9' (VISIBILITY_IGNORE) |
| 2250 | |
| 2251 | or nothing, for C style fields with public visibility. |
| 2252 | |
| 2253 | Returns 1 for success, 0 for failure. */ |
| 2254 | |
| 2255 | static boolean |
| 2256 | parse_stab_struct_fields (dhandle, info, pp, retp, staticsp) |
| 2257 | PTR dhandle; |
| 2258 | struct stab_handle *info; |
| 2259 | const char **pp; |
| 2260 | debug_field **retp; |
| 2261 | boolean *staticsp; |
| 2262 | { |
| 2263 | const char *orig; |
| 2264 | const char *p; |
| 2265 | debug_field *fields; |
| 2266 | unsigned int c; |
| 2267 | unsigned int alloc; |
| 2268 | |
| 2269 | *retp = NULL; |
| 2270 | *staticsp = false; |
| 2271 | |
| 2272 | orig = *pp; |
| 2273 | |
| 2274 | c = 0; |
| 2275 | alloc = 10; |
| 2276 | fields = (debug_field *) xmalloc (alloc * sizeof *fields); |
| 2277 | while (**pp != ';') |
| 2278 | { |
| 2279 | /* FIXME: gdb checks os9k_stabs here. */ |
| 2280 | |
| 2281 | p = *pp; |
| 2282 | |
| 2283 | /* Add 1 to c to leave room for NULL pointer at end. */ |
| 2284 | if (c + 1 >= alloc) |
| 2285 | { |
| 2286 | alloc += 10; |
| 2287 | fields = ((debug_field *) |
| 2288 | xrealloc ((PTR) fields, alloc * sizeof *fields)); |
| 2289 | } |
| 2290 | |
| 2291 | /* If it starts with CPLUS_MARKER it is a special abbreviation, |
| 2292 | unless the CPLUS_MARKER is followed by an underscore, in |
| 2293 | which case it is just the name of an anonymous type, which we |
| 2294 | should handle like any other type name. We accept either '$' |
| 2295 | or '.', because a field name can never contain one of these |
| 2296 | characters except as a CPLUS_MARKER. */ |
| 2297 | |
| 2298 | if ((*p == '$' || *p == '.') && p[1] != '_') |
| 2299 | { |
| 2300 | ++*pp; |
| 2301 | if (! parse_stab_cpp_abbrev (dhandle, info, pp, fields + c)) |
| 2302 | return false; |
| 2303 | ++c; |
| 2304 | continue; |
| 2305 | } |
| 2306 | |
| 2307 | /* Look for the ':' that separates the field name from the field |
| 2308 | values. Data members are delimited by a single ':', while member |
| 2309 | functions are delimited by a pair of ':'s. When we hit the member |
| 2310 | functions (if any), terminate scan loop and return. */ |
| 2311 | |
| 2312 | p = strchr (p, ':'); |
| 2313 | if (p == NULL) |
| 2314 | { |
| 2315 | bad_stab (orig); |
| 2316 | return false; |
| 2317 | } |
| 2318 | |
| 2319 | if (p[1] == ':') |
| 2320 | break; |
| 2321 | |
| 2322 | if (! parse_stab_one_struct_field (dhandle, info, pp, p, fields + c, |
| 2323 | staticsp)) |
| 2324 | return false; |
| 2325 | |
| 2326 | ++c; |
| 2327 | } |
| 2328 | |
| 2329 | fields[c] = DEBUG_FIELD_NULL; |
| 2330 | |
| 2331 | *retp = fields; |
| 2332 | |
| 2333 | return true; |
| 2334 | } |
| 2335 | |
| 2336 | /* Special GNU C++ name. */ |
| 2337 | |
| 2338 | static boolean |
| 2339 | parse_stab_cpp_abbrev (dhandle, info, pp, retp) |
| 2340 | PTR dhandle; |
| 2341 | struct stab_handle *info; |
| 2342 | const char **pp; |
| 2343 | debug_field *retp; |
| 2344 | { |
| 2345 | const char *orig; |
| 2346 | int cpp_abbrev; |
| 2347 | debug_type context; |
| 2348 | const char *name; |
| 2349 | const char *typename; |
| 2350 | debug_type type; |
| 2351 | bfd_vma bitpos; |
| 2352 | |
| 2353 | *retp = DEBUG_FIELD_NULL; |
| 2354 | |
| 2355 | orig = *pp; |
| 2356 | |
| 2357 | if (**pp != 'v') |
| 2358 | { |
| 2359 | bad_stab (*pp); |
| 2360 | return false; |
| 2361 | } |
| 2362 | ++*pp; |
| 2363 | |
| 2364 | cpp_abbrev = **pp; |
| 2365 | ++*pp; |
| 2366 | |
| 2367 | /* At this point, *pp points to something like "22:23=*22...", where |
| 2368 | the type number before the ':' is the "context" and everything |
| 2369 | after is a regular type definition. Lookup the type, find it's |
| 2370 | name, and construct the field name. */ |
| 2371 | |
| 2372 | context = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 2373 | (debug_type **) NULL); |
| 2374 | if (context == DEBUG_TYPE_NULL) |
| 2375 | return false; |
| 2376 | |
| 2377 | switch (cpp_abbrev) |
| 2378 | { |
| 2379 | case 'f': |
| 2380 | /* $vf -- a virtual function table pointer. */ |
| 2381 | name = "_vptr$"; |
| 2382 | break; |
| 2383 | case 'b': |
| 2384 | /* $vb -- a virtual bsomethingorother */ |
| 2385 | typename = debug_get_type_name (dhandle, context); |
| 2386 | if (typename == NULL) |
| 2387 | { |
| 2388 | warn_stab (orig, _("unnamed $vb type")); |
| 2389 | typename = "FOO"; |
| 2390 | } |
| 2391 | name = concat ("_vb$", typename, (const char *) NULL); |
| 2392 | break; |
| 2393 | default: |
| 2394 | warn_stab (orig, _("unrecognized C++ abbreviation")); |
| 2395 | name = "INVALID_CPLUSPLUS_ABBREV"; |
| 2396 | break; |
| 2397 | } |
| 2398 | |
| 2399 | if (**pp != ':') |
| 2400 | { |
| 2401 | bad_stab (orig); |
| 2402 | return false; |
| 2403 | } |
| 2404 | ++*pp; |
| 2405 | |
| 2406 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 2407 | (debug_type **) NULL); |
| 2408 | if (**pp != ',') |
| 2409 | { |
| 2410 | bad_stab (orig); |
| 2411 | return false; |
| 2412 | } |
| 2413 | ++*pp; |
| 2414 | |
| 2415 | bitpos = parse_number (pp, (boolean *) NULL); |
| 2416 | if (**pp != ';') |
| 2417 | { |
| 2418 | bad_stab (orig); |
| 2419 | return false; |
| 2420 | } |
| 2421 | ++*pp; |
| 2422 | |
| 2423 | *retp = debug_make_field (dhandle, name, type, bitpos, 0, |
| 2424 | DEBUG_VISIBILITY_PRIVATE); |
| 2425 | if (*retp == DEBUG_FIELD_NULL) |
| 2426 | return false; |
| 2427 | |
| 2428 | return true; |
| 2429 | } |
| 2430 | |
| 2431 | /* Parse a single field in a struct or union. */ |
| 2432 | |
| 2433 | static boolean |
| 2434 | parse_stab_one_struct_field (dhandle, info, pp, p, retp, staticsp) |
| 2435 | PTR dhandle; |
| 2436 | struct stab_handle *info; |
| 2437 | const char **pp; |
| 2438 | const char *p; |
| 2439 | debug_field *retp; |
| 2440 | boolean *staticsp; |
| 2441 | { |
| 2442 | const char *orig; |
| 2443 | char *name; |
| 2444 | enum debug_visibility visibility; |
| 2445 | debug_type type; |
| 2446 | bfd_vma bitpos; |
| 2447 | bfd_vma bitsize; |
| 2448 | |
| 2449 | orig = *pp; |
| 2450 | |
| 2451 | /* FIXME: gdb checks ARM_DEMANGLING here. */ |
| 2452 | |
| 2453 | name = savestring (*pp, p - *pp); |
| 2454 | |
| 2455 | *pp = p + 1; |
| 2456 | |
| 2457 | if (**pp != '/') |
| 2458 | visibility = DEBUG_VISIBILITY_PUBLIC; |
| 2459 | else |
| 2460 | { |
| 2461 | ++*pp; |
| 2462 | switch (**pp) |
| 2463 | { |
| 2464 | case '0': |
| 2465 | visibility = DEBUG_VISIBILITY_PRIVATE; |
| 2466 | break; |
| 2467 | case '1': |
| 2468 | visibility = DEBUG_VISIBILITY_PROTECTED; |
| 2469 | break; |
| 2470 | case '2': |
| 2471 | visibility = DEBUG_VISIBILITY_PUBLIC; |
| 2472 | break; |
| 2473 | default: |
| 2474 | warn_stab (orig, _("unknown visibility character for field")); |
| 2475 | visibility = DEBUG_VISIBILITY_PUBLIC; |
| 2476 | break; |
| 2477 | } |
| 2478 | ++*pp; |
| 2479 | } |
| 2480 | |
| 2481 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 2482 | (debug_type **) NULL); |
| 2483 | if (type == DEBUG_TYPE_NULL) |
| 2484 | return false; |
| 2485 | |
| 2486 | if (**pp == ':') |
| 2487 | { |
| 2488 | char *varname; |
| 2489 | |
| 2490 | /* This is a static class member. */ |
| 2491 | ++*pp; |
| 2492 | p = strchr (*pp, ';'); |
| 2493 | if (p == NULL) |
| 2494 | { |
| 2495 | bad_stab (orig); |
| 2496 | return false; |
| 2497 | } |
| 2498 | |
| 2499 | varname = savestring (*pp, p - *pp); |
| 2500 | |
| 2501 | *pp = p + 1; |
| 2502 | |
| 2503 | *retp = debug_make_static_member (dhandle, name, type, varname, |
| 2504 | visibility); |
| 2505 | *staticsp = true; |
| 2506 | |
| 2507 | return true; |
| 2508 | } |
| 2509 | |
| 2510 | if (**pp != ',') |
| 2511 | { |
| 2512 | bad_stab (orig); |
| 2513 | return false; |
| 2514 | } |
| 2515 | ++*pp; |
| 2516 | |
| 2517 | bitpos = parse_number (pp, (boolean *) NULL); |
| 2518 | if (**pp != ',') |
| 2519 | { |
| 2520 | bad_stab (orig); |
| 2521 | return false; |
| 2522 | } |
| 2523 | ++*pp; |
| 2524 | |
| 2525 | bitsize = parse_number (pp, (boolean *) NULL); |
| 2526 | if (**pp != ';') |
| 2527 | { |
| 2528 | bad_stab (orig); |
| 2529 | return false; |
| 2530 | } |
| 2531 | ++*pp; |
| 2532 | |
| 2533 | if (bitpos == 0 && bitsize == 0) |
| 2534 | { |
| 2535 | /* This can happen in two cases: (1) at least for gcc 2.4.5 or |
| 2536 | so, it is a field which has been optimized out. The correct |
| 2537 | stab for this case is to use VISIBILITY_IGNORE, but that is a |
| 2538 | recent invention. (2) It is a 0-size array. For example |
| 2539 | union { int num; char str[0]; } foo. Printing "<no value>" |
| 2540 | for str in "p foo" is OK, since foo.str (and thus foo.str[3]) |
| 2541 | will continue to work, and a 0-size array as a whole doesn't |
| 2542 | have any contents to print. |
| 2543 | |
| 2544 | I suspect this probably could also happen with gcc -gstabs |
| 2545 | (not -gstabs+) for static fields, and perhaps other C++ |
| 2546 | extensions. Hopefully few people use -gstabs with gdb, since |
| 2547 | it is intended for dbx compatibility. */ |
| 2548 | visibility = DEBUG_VISIBILITY_IGNORE; |
| 2549 | } |
| 2550 | |
| 2551 | /* FIXME: gdb does some stuff here to mark fields as unpacked. */ |
| 2552 | |
| 2553 | *retp = debug_make_field (dhandle, name, type, bitpos, bitsize, visibility); |
| 2554 | |
| 2555 | return true; |
| 2556 | } |
| 2557 | |
| 2558 | /* Read member function stabs info for C++ classes. The form of each member |
| 2559 | function data is: |
| 2560 | |
| 2561 | NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ; |
| 2562 | |
| 2563 | An example with two member functions is: |
| 2564 | |
| 2565 | afunc1::20=##15;:i;2A.;afunc2::20:i;2A.; |
| 2566 | |
| 2567 | For the case of overloaded operators, the format is op$::*.funcs, where |
| 2568 | $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator |
| 2569 | name (such as `+=') and `.' marks the end of the operator name. */ |
| 2570 | |
| 2571 | static boolean |
| 2572 | parse_stab_members (dhandle, info, tagname, pp, typenums, retp) |
| 2573 | PTR dhandle; |
| 2574 | struct stab_handle *info; |
| 2575 | const char *tagname; |
| 2576 | const char **pp; |
| 2577 | const int *typenums; |
| 2578 | debug_method **retp; |
| 2579 | { |
| 2580 | const char *orig; |
| 2581 | debug_method *methods; |
| 2582 | unsigned int c; |
| 2583 | unsigned int alloc; |
| 2584 | |
| 2585 | *retp = NULL; |
| 2586 | |
| 2587 | orig = *pp; |
| 2588 | |
| 2589 | alloc = 0; |
| 2590 | methods = NULL; |
| 2591 | c = 0; |
| 2592 | |
| 2593 | while (**pp != ';') |
| 2594 | { |
| 2595 | const char *p; |
| 2596 | char *name; |
| 2597 | debug_method_variant *variants; |
| 2598 | unsigned int cvars; |
| 2599 | unsigned int allocvars; |
| 2600 | debug_type look_ahead_type; |
| 2601 | |
| 2602 | p = strchr (*pp, ':'); |
| 2603 | if (p == NULL || p[1] != ':') |
| 2604 | break; |
| 2605 | |
| 2606 | /* FIXME: Some systems use something other than '$' here. */ |
| 2607 | if ((*pp)[0] != 'o' || (*pp)[1] != 'p' || (*pp)[2] != '$') |
| 2608 | { |
| 2609 | name = savestring (*pp, p - *pp); |
| 2610 | *pp = p + 2; |
| 2611 | } |
| 2612 | else |
| 2613 | { |
| 2614 | /* This is a completely wierd case. In order to stuff in the |
| 2615 | names that might contain colons (the usual name delimiter), |
| 2616 | Mike Tiemann defined a different name format which is |
| 2617 | signalled if the identifier is "op$". In that case, the |
| 2618 | format is "op$::XXXX." where XXXX is the name. This is |
| 2619 | used for names like "+" or "=". YUUUUUUUK! FIXME! */ |
| 2620 | *pp = p + 2; |
| 2621 | for (p = *pp; *p != '.' && *p != '\0'; p++) |
| 2622 | ; |
| 2623 | if (*p != '.') |
| 2624 | { |
| 2625 | bad_stab (orig); |
| 2626 | return false; |
| 2627 | } |
| 2628 | name = savestring (*pp, p - *pp); |
| 2629 | *pp = p + 1; |
| 2630 | } |
| 2631 | |
| 2632 | allocvars = 10; |
| 2633 | variants = ((debug_method_variant *) |
| 2634 | xmalloc (allocvars * sizeof *variants)); |
| 2635 | cvars = 0; |
| 2636 | |
| 2637 | look_ahead_type = DEBUG_TYPE_NULL; |
| 2638 | |
| 2639 | do |
| 2640 | { |
| 2641 | debug_type type; |
| 2642 | boolean stub; |
| 2643 | char *argtypes; |
| 2644 | enum debug_visibility visibility; |
| 2645 | boolean constp, volatilep, staticp; |
| 2646 | bfd_vma voffset; |
| 2647 | debug_type context; |
| 2648 | const char *physname; |
| 2649 | boolean varargs; |
| 2650 | |
| 2651 | if (look_ahead_type != DEBUG_TYPE_NULL) |
| 2652 | { |
| 2653 | /* g++ version 1 kludge */ |
| 2654 | type = look_ahead_type; |
| 2655 | look_ahead_type = DEBUG_TYPE_NULL; |
| 2656 | } |
| 2657 | else |
| 2658 | { |
| 2659 | type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 2660 | (debug_type **) NULL); |
| 2661 | if (type == DEBUG_TYPE_NULL) |
| 2662 | return false; |
| 2663 | if (**pp != ':') |
| 2664 | { |
| 2665 | bad_stab (orig); |
| 2666 | return false; |
| 2667 | } |
| 2668 | } |
| 2669 | |
| 2670 | ++*pp; |
| 2671 | p = strchr (*pp, ';'); |
| 2672 | if (p == NULL) |
| 2673 | { |
| 2674 | bad_stab (orig); |
| 2675 | return false; |
| 2676 | } |
| 2677 | |
| 2678 | stub = false; |
| 2679 | if (debug_get_type_kind (dhandle, type) == DEBUG_KIND_METHOD |
| 2680 | && debug_get_parameter_types (dhandle, type, &varargs) == NULL) |
| 2681 | stub = true; |
| 2682 | |
| 2683 | argtypes = savestring (*pp, p - *pp); |
| 2684 | *pp = p + 1; |
| 2685 | |
| 2686 | switch (**pp) |
| 2687 | { |
| 2688 | case '0': |
| 2689 | visibility = DEBUG_VISIBILITY_PRIVATE; |
| 2690 | break; |
| 2691 | case '1': |
| 2692 | visibility = DEBUG_VISIBILITY_PROTECTED; |
| 2693 | break; |
| 2694 | default: |
| 2695 | visibility = DEBUG_VISIBILITY_PUBLIC; |
| 2696 | break; |
| 2697 | } |
| 2698 | ++*pp; |
| 2699 | |
| 2700 | constp = false; |
| 2701 | volatilep = false; |
| 2702 | switch (**pp) |
| 2703 | { |
| 2704 | case 'A': |
| 2705 | /* Normal function. */ |
| 2706 | ++*pp; |
| 2707 | break; |
| 2708 | case 'B': |
| 2709 | /* const member function. */ |
| 2710 | constp = true; |
| 2711 | ++*pp; |
| 2712 | break; |
| 2713 | case 'C': |
| 2714 | /* volatile member function. */ |
| 2715 | volatilep = true; |
| 2716 | ++*pp; |
| 2717 | break; |
| 2718 | case 'D': |
| 2719 | /* const volatile member function. */ |
| 2720 | constp = true; |
| 2721 | volatilep = true; |
| 2722 | ++*pp; |
| 2723 | break; |
| 2724 | case '*': |
| 2725 | case '?': |
| 2726 | case '.': |
| 2727 | /* File compiled with g++ version 1; no information. */ |
| 2728 | break; |
| 2729 | default: |
| 2730 | warn_stab (orig, _("const/volatile indicator missing")); |
| 2731 | break; |
| 2732 | } |
| 2733 | |
| 2734 | staticp = false; |
| 2735 | switch (**pp) |
| 2736 | { |
| 2737 | case '*': |
| 2738 | /* virtual member function, followed by index. The sign |
| 2739 | bit is supposedly set to distinguish |
| 2740 | pointers-to-methods from virtual function indicies. */ |
| 2741 | ++*pp; |
| 2742 | voffset = parse_number (pp, (boolean *) NULL); |
| 2743 | if (**pp != ';') |
| 2744 | { |
| 2745 | bad_stab (orig); |
| 2746 | return false; |
| 2747 | } |
| 2748 | ++*pp; |
| 2749 | voffset &= 0x7fffffff; |
| 2750 | |
| 2751 | if (**pp == ';' || *pp == '\0') |
| 2752 | { |
| 2753 | /* Must be g++ version 1. */ |
| 2754 | context = DEBUG_TYPE_NULL; |
| 2755 | } |
| 2756 | else |
| 2757 | { |
| 2758 | /* Figure out from whence this virtual function |
| 2759 | came. It may belong to virtual function table of |
| 2760 | one of its baseclasses. */ |
| 2761 | look_ahead_type = parse_stab_type (dhandle, info, |
| 2762 | (const char *) NULL, |
| 2763 | pp, |
| 2764 | (debug_type **) NULL); |
| 2765 | if (**pp == ':') |
| 2766 | { |
| 2767 | /* g++ version 1 overloaded methods. */ |
| 2768 | context = DEBUG_TYPE_NULL; |
| 2769 | } |
| 2770 | else |
| 2771 | { |
| 2772 | context = look_ahead_type; |
| 2773 | look_ahead_type = DEBUG_TYPE_NULL; |
| 2774 | if (**pp != ';') |
| 2775 | { |
| 2776 | bad_stab (orig); |
| 2777 | return false; |
| 2778 | } |
| 2779 | ++*pp; |
| 2780 | } |
| 2781 | } |
| 2782 | break; |
| 2783 | |
| 2784 | case '?': |
| 2785 | /* static member function. */ |
| 2786 | ++*pp; |
| 2787 | staticp = true; |
| 2788 | voffset = 0; |
| 2789 | context = DEBUG_TYPE_NULL; |
| 2790 | if (strncmp (argtypes, name, strlen (name)) != 0) |
| 2791 | stub = true; |
| 2792 | break; |
| 2793 | |
| 2794 | default: |
| 2795 | warn_stab (orig, "member function type missing"); |
| 2796 | voffset = 0; |
| 2797 | context = DEBUG_TYPE_NULL; |
| 2798 | break; |
| 2799 | |
| 2800 | case '.': |
| 2801 | ++*pp; |
| 2802 | voffset = 0; |
| 2803 | context = DEBUG_TYPE_NULL; |
| 2804 | break; |
| 2805 | } |
| 2806 | |
| 2807 | /* If the type is not a stub, then the argtypes string is |
| 2808 | the physical name of the function. Otherwise the |
| 2809 | argtypes string is the mangled form of the argument |
| 2810 | types, and the full type and the physical name must be |
| 2811 | extracted from them. */ |
| 2812 | if (! stub) |
| 2813 | physname = argtypes; |
| 2814 | else |
| 2815 | { |
| 2816 | debug_type class_type, return_type; |
| 2817 | |
| 2818 | class_type = stab_find_type (dhandle, info, typenums); |
| 2819 | if (class_type == DEBUG_TYPE_NULL) |
| 2820 | return false; |
| 2821 | return_type = debug_get_return_type (dhandle, type); |
| 2822 | if (return_type == DEBUG_TYPE_NULL) |
| 2823 | { |
| 2824 | bad_stab (orig); |
| 2825 | return false; |
| 2826 | } |
| 2827 | type = parse_stab_argtypes (dhandle, info, class_type, name, |
| 2828 | tagname, return_type, argtypes, |
| 2829 | constp, volatilep, &physname); |
| 2830 | if (type == DEBUG_TYPE_NULL) |
| 2831 | return false; |
| 2832 | } |
| 2833 | |
| 2834 | if (cvars + 1 >= allocvars) |
| 2835 | { |
| 2836 | allocvars += 10; |
| 2837 | variants = ((debug_method_variant *) |
| 2838 | xrealloc ((PTR) variants, |
| 2839 | allocvars * sizeof *variants)); |
| 2840 | } |
| 2841 | |
| 2842 | if (! staticp) |
| 2843 | variants[cvars] = debug_make_method_variant (dhandle, physname, |
| 2844 | type, visibility, |
| 2845 | constp, volatilep, |
| 2846 | voffset, context); |
| 2847 | else |
| 2848 | variants[cvars] = debug_make_static_method_variant (dhandle, |
| 2849 | physname, |
| 2850 | type, |
| 2851 | visibility, |
| 2852 | constp, |
| 2853 | volatilep); |
| 2854 | if (variants[cvars] == DEBUG_METHOD_VARIANT_NULL) |
| 2855 | return false; |
| 2856 | |
| 2857 | ++cvars; |
| 2858 | } |
| 2859 | while (**pp != ';' && **pp != '\0'); |
| 2860 | |
| 2861 | variants[cvars] = DEBUG_METHOD_VARIANT_NULL; |
| 2862 | |
| 2863 | if (**pp != '\0') |
| 2864 | ++*pp; |
| 2865 | |
| 2866 | if (c + 1 >= alloc) |
| 2867 | { |
| 2868 | alloc += 10; |
| 2869 | methods = ((debug_method *) |
| 2870 | xrealloc ((PTR) methods, alloc * sizeof *methods)); |
| 2871 | } |
| 2872 | |
| 2873 | methods[c] = debug_make_method (dhandle, name, variants); |
| 2874 | |
| 2875 | ++c; |
| 2876 | } |
| 2877 | |
| 2878 | if (methods != NULL) |
| 2879 | methods[c] = DEBUG_METHOD_NULL; |
| 2880 | |
| 2881 | *retp = methods; |
| 2882 | |
| 2883 | return true; |
| 2884 | } |
| 2885 | |
| 2886 | /* Parse a string representing argument types for a method. Stabs |
| 2887 | tries to save space by packing argument types into a mangled |
| 2888 | string. This string should give us enough information to extract |
| 2889 | both argument types and the physical name of the function, given |
| 2890 | the tag name. */ |
| 2891 | |
| 2892 | static debug_type |
| 2893 | parse_stab_argtypes (dhandle, info, class_type, fieldname, tagname, |
| 2894 | return_type, argtypes, constp, volatilep, pphysname) |
| 2895 | PTR dhandle; |
| 2896 | struct stab_handle *info; |
| 2897 | debug_type class_type; |
| 2898 | const char *fieldname; |
| 2899 | const char *tagname; |
| 2900 | debug_type return_type; |
| 2901 | const char *argtypes; |
| 2902 | boolean constp; |
| 2903 | boolean volatilep; |
| 2904 | const char **pphysname; |
| 2905 | { |
| 2906 | boolean is_full_physname_constructor; |
| 2907 | boolean is_constructor; |
| 2908 | boolean is_destructor; |
| 2909 | debug_type *args; |
| 2910 | boolean varargs; |
| 2911 | unsigned int physname_len = 0; |
| 2912 | |
| 2913 | /* Constructors are sometimes handled specially. */ |
| 2914 | is_full_physname_constructor = ((argtypes[0] == '_' |
| 2915 | && argtypes[1] == '_' |
| 2916 | && (ISDIGIT (argtypes[2]) |
| 2917 | || argtypes[2] == 'Q' |
| 2918 | || argtypes[2] == 't')) |
| 2919 | || strncmp (argtypes, "__ct", 4) == 0); |
| 2920 | |
| 2921 | is_constructor = (is_full_physname_constructor |
| 2922 | || (tagname != NULL |
| 2923 | && strcmp (fieldname, tagname) == 0)); |
| 2924 | is_destructor = ((argtypes[0] == '_' |
| 2925 | && (argtypes[1] == '$' || argtypes[1] == '.') |
| 2926 | && argtypes[2] == '_') |
| 2927 | || strncmp (argtypes, "__dt", 4) == 0); |
| 2928 | |
| 2929 | if (is_destructor || is_full_physname_constructor) |
| 2930 | *pphysname = argtypes; |
| 2931 | else |
| 2932 | { |
| 2933 | unsigned int len; |
| 2934 | const char *const_prefix; |
| 2935 | const char *volatile_prefix; |
| 2936 | char buf[20]; |
| 2937 | unsigned int mangled_name_len; |
| 2938 | char *physname; |
| 2939 | |
| 2940 | len = tagname == NULL ? 0 : strlen (tagname); |
| 2941 | const_prefix = constp ? "C" : ""; |
| 2942 | volatile_prefix = volatilep ? "V" : ""; |
| 2943 | |
| 2944 | if (len == 0) |
| 2945 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
| 2946 | else if (tagname != NULL && strchr (tagname, '<') != NULL) |
| 2947 | { |
| 2948 | /* Template methods are fully mangled. */ |
| 2949 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
| 2950 | tagname = NULL; |
| 2951 | len = 0; |
| 2952 | } |
| 2953 | else |
| 2954 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); |
| 2955 | |
| 2956 | mangled_name_len = ((is_constructor ? 0 : strlen (fieldname)) |
| 2957 | + strlen (buf) |
| 2958 | + len |
| 2959 | + strlen (argtypes) |
| 2960 | + 1); |
| 2961 | |
| 2962 | if (fieldname[0] == 'o' |
| 2963 | && fieldname[1] == 'p' |
| 2964 | && (fieldname[2] == '$' || fieldname[2] == '.')) |
| 2965 | { |
| 2966 | const char *opname; |
| 2967 | |
| 2968 | opname = cplus_mangle_opname (fieldname + 3, 0); |
| 2969 | if (opname == NULL) |
| 2970 | { |
| 2971 | fprintf (stderr, _("No mangling for \"%s\"\n"), fieldname); |
| 2972 | return DEBUG_TYPE_NULL; |
| 2973 | } |
| 2974 | mangled_name_len += strlen (opname); |
| 2975 | physname = (char *) xmalloc (mangled_name_len); |
| 2976 | strncpy (physname, fieldname, 3); |
| 2977 | strcpy (physname + 3, opname); |
| 2978 | } |
| 2979 | else |
| 2980 | { |
| 2981 | physname = (char *) xmalloc (mangled_name_len); |
| 2982 | if (is_constructor) |
| 2983 | physname[0] = '\0'; |
| 2984 | else |
| 2985 | strcpy (physname, fieldname); |
| 2986 | } |
| 2987 | |
| 2988 | physname_len = strlen (physname); |
| 2989 | strcat (physname, buf); |
| 2990 | if (tagname != NULL) |
| 2991 | strcat (physname, tagname); |
| 2992 | strcat (physname, argtypes); |
| 2993 | |
| 2994 | *pphysname = physname; |
| 2995 | } |
| 2996 | |
| 2997 | if (*argtypes == '\0' || is_destructor) |
| 2998 | { |
| 2999 | args = (debug_type *) xmalloc (sizeof *args); |
| 3000 | *args = NULL; |
| 3001 | return debug_make_method_type (dhandle, return_type, class_type, args, |
| 3002 | false); |
| 3003 | } |
| 3004 | |
| 3005 | args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs, physname_len); |
| 3006 | if (args == NULL) |
| 3007 | return DEBUG_TYPE_NULL; |
| 3008 | |
| 3009 | return debug_make_method_type (dhandle, return_type, class_type, args, |
| 3010 | varargs); |
| 3011 | } |
| 3012 | |
| 3013 | /* The tail end of stabs for C++ classes that contain a virtual function |
| 3014 | pointer contains a tilde, a %, and a type number. |
| 3015 | The type number refers to the base class (possibly this class itself) which |
| 3016 | contains the vtable pointer for the current class. |
| 3017 | |
| 3018 | This function is called when we have parsed all the method declarations, |
| 3019 | so we can look for the vptr base class info. */ |
| 3020 | |
| 3021 | static boolean |
| 3022 | parse_stab_tilde_field (dhandle, info, pp, typenums, retvptrbase, retownvptr) |
| 3023 | PTR dhandle; |
| 3024 | struct stab_handle *info; |
| 3025 | const char **pp; |
| 3026 | const int *typenums; |
| 3027 | debug_type *retvptrbase; |
| 3028 | boolean *retownvptr; |
| 3029 | { |
| 3030 | const char *orig; |
| 3031 | const char *hold; |
| 3032 | int vtypenums[2]; |
| 3033 | |
| 3034 | *retvptrbase = DEBUG_TYPE_NULL; |
| 3035 | *retownvptr = false; |
| 3036 | |
| 3037 | orig = *pp; |
| 3038 | |
| 3039 | /* If we are positioned at a ';', then skip it. */ |
| 3040 | if (**pp == ';') |
| 3041 | ++*pp; |
| 3042 | |
| 3043 | if (**pp != '~') |
| 3044 | return true; |
| 3045 | |
| 3046 | ++*pp; |
| 3047 | |
| 3048 | if (**pp == '=' || **pp == '+' || **pp == '-') |
| 3049 | { |
| 3050 | /* Obsolete flags that used to indicate the presence of |
| 3051 | constructors and/or destructors. */ |
| 3052 | ++*pp; |
| 3053 | } |
| 3054 | |
| 3055 | if (**pp != '%') |
| 3056 | return true; |
| 3057 | |
| 3058 | ++*pp; |
| 3059 | |
| 3060 | hold = *pp; |
| 3061 | |
| 3062 | /* The next number is the type number of the base class (possibly |
| 3063 | our own class) which supplies the vtable for this class. */ |
| 3064 | if (! parse_stab_type_number (pp, vtypenums)) |
| 3065 | return false; |
| 3066 | |
| 3067 | if (vtypenums[0] == typenums[0] |
| 3068 | && vtypenums[1] == typenums[1]) |
| 3069 | *retownvptr = true; |
| 3070 | else |
| 3071 | { |
| 3072 | debug_type vtype; |
| 3073 | const char *p; |
| 3074 | |
| 3075 | *pp = hold; |
| 3076 | |
| 3077 | vtype = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 3078 | (debug_type **) NULL); |
| 3079 | for (p = *pp; *p != ';' && *p != '\0'; p++) |
| 3080 | ; |
| 3081 | if (*p != ';') |
| 3082 | { |
| 3083 | bad_stab (orig); |
| 3084 | return false; |
| 3085 | } |
| 3086 | |
| 3087 | *retvptrbase = vtype; |
| 3088 | |
| 3089 | *pp = p + 1; |
| 3090 | } |
| 3091 | |
| 3092 | return true; |
| 3093 | } |
| 3094 | |
| 3095 | /* Read a definition of an array type. */ |
| 3096 | |
| 3097 | static debug_type |
| 3098 | parse_stab_array_type (dhandle, info, pp, stringp) |
| 3099 | PTR dhandle; |
| 3100 | struct stab_handle *info; |
| 3101 | const char **pp; |
| 3102 | boolean stringp; |
| 3103 | { |
| 3104 | const char *orig; |
| 3105 | const char *p; |
| 3106 | int typenums[2]; |
| 3107 | debug_type index_type; |
| 3108 | boolean adjustable; |
| 3109 | bfd_signed_vma lower, upper; |
| 3110 | debug_type element_type; |
| 3111 | |
| 3112 | /* Format of an array type: |
| 3113 | "ar<index type>;lower;upper;<array_contents_type>". |
| 3114 | OS9000: "arlower,upper;<array_contents_type>". |
| 3115 | |
| 3116 | Fortran adjustable arrays use Adigits or Tdigits for lower or upper; |
| 3117 | for these, produce a type like float[][]. */ |
| 3118 | |
| 3119 | orig = *pp; |
| 3120 | |
| 3121 | /* FIXME: gdb checks os9k_stabs here. */ |
| 3122 | |
| 3123 | /* If the index type is type 0, we take it as int. */ |
| 3124 | p = *pp; |
| 3125 | if (! parse_stab_type_number (&p, typenums)) |
| 3126 | return DEBUG_TYPE_NULL; |
| 3127 | if (typenums[0] == 0 && typenums[1] == 0 && **pp != '=') |
| 3128 | { |
| 3129 | index_type = debug_find_named_type (dhandle, "int"); |
| 3130 | if (index_type == DEBUG_TYPE_NULL) |
| 3131 | { |
| 3132 | index_type = debug_make_int_type (dhandle, 4, false); |
| 3133 | if (index_type == DEBUG_TYPE_NULL) |
| 3134 | return DEBUG_TYPE_NULL; |
| 3135 | } |
| 3136 | *pp = p; |
| 3137 | } |
| 3138 | else |
| 3139 | { |
| 3140 | index_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 3141 | (debug_type **) NULL); |
| 3142 | } |
| 3143 | |
| 3144 | if (**pp != ';') |
| 3145 | { |
| 3146 | bad_stab (orig); |
| 3147 | return DEBUG_TYPE_NULL; |
| 3148 | } |
| 3149 | ++*pp; |
| 3150 | |
| 3151 | adjustable = false; |
| 3152 | |
| 3153 | if (! ISDIGIT (**pp) && **pp != '-') |
| 3154 | { |
| 3155 | ++*pp; |
| 3156 | adjustable = true; |
| 3157 | } |
| 3158 | |
| 3159 | lower = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); |
| 3160 | if (**pp != ';') |
| 3161 | { |
| 3162 | bad_stab (orig); |
| 3163 | return DEBUG_TYPE_NULL; |
| 3164 | } |
| 3165 | ++*pp; |
| 3166 | |
| 3167 | if (! ISDIGIT (**pp) && **pp != '-') |
| 3168 | { |
| 3169 | ++*pp; |
| 3170 | adjustable = true; |
| 3171 | } |
| 3172 | |
| 3173 | upper = (bfd_signed_vma) parse_number (pp, (boolean *) NULL); |
| 3174 | if (**pp != ';') |
| 3175 | { |
| 3176 | bad_stab (orig); |
| 3177 | return DEBUG_TYPE_NULL; |
| 3178 | } |
| 3179 | ++*pp; |
| 3180 | |
| 3181 | element_type = parse_stab_type (dhandle, info, (const char *) NULL, pp, |
| 3182 | (debug_type **) NULL); |
| 3183 | if (element_type == DEBUG_TYPE_NULL) |
| 3184 | return DEBUG_TYPE_NULL; |
| 3185 | |
| 3186 | if (adjustable) |
| 3187 | { |
| 3188 | lower = 0; |
| 3189 | upper = -1; |
| 3190 | } |
| 3191 | |
| 3192 | return debug_make_array_type (dhandle, element_type, index_type, lower, |
| 3193 | upper, stringp); |
| 3194 | } |
| 3195 | |
| 3196 | /* This struct holds information about files we have seen using |
| 3197 | N_BINCL. */ |
| 3198 | |
| 3199 | struct bincl_file |
| 3200 | { |
| 3201 | /* The next N_BINCL file. */ |
| 3202 | struct bincl_file *next; |
| 3203 | /* The next N_BINCL on the stack. */ |
| 3204 | struct bincl_file *next_stack; |
| 3205 | /* The file name. */ |
| 3206 | const char *name; |
| 3207 | /* The hash value. */ |
| 3208 | bfd_vma hash; |
| 3209 | /* The file index. */ |
| 3210 | unsigned int file; |
| 3211 | /* The list of types defined in this file. */ |
| 3212 | struct stab_types *file_types; |
| 3213 | }; |
| 3214 | |
| 3215 | /* Start a new N_BINCL file, pushing it onto the stack. */ |
| 3216 | |
| 3217 | static void |
| 3218 | push_bincl (info, name, hash) |
| 3219 | struct stab_handle *info; |
| 3220 | const char *name; |
| 3221 | bfd_vma hash; |
| 3222 | { |
| 3223 | struct bincl_file *n; |
| 3224 | |
| 3225 | n = (struct bincl_file *) xmalloc (sizeof *n); |
| 3226 | n->next = info->bincl_list; |
| 3227 | n->next_stack = info->bincl_stack; |
| 3228 | n->name = name; |
| 3229 | n->hash = hash; |
| 3230 | n->file = info->files; |
| 3231 | n->file_types = NULL; |
| 3232 | info->bincl_list = n; |
| 3233 | info->bincl_stack = n; |
| 3234 | |
| 3235 | ++info->files; |
| 3236 | info->file_types = ((struct stab_types **) |
| 3237 | xrealloc ((PTR) info->file_types, |
| 3238 | (info->files |
| 3239 | * sizeof *info->file_types))); |
| 3240 | info->file_types[n->file] = NULL; |
| 3241 | } |
| 3242 | |
| 3243 | /* Finish an N_BINCL file, at an N_EINCL, popping the name off the |
| 3244 | stack. */ |
| 3245 | |
| 3246 | static const char * |
| 3247 | pop_bincl (info) |
| 3248 | struct stab_handle *info; |
| 3249 | { |
| 3250 | struct bincl_file *o; |
| 3251 | |
| 3252 | o = info->bincl_stack; |
| 3253 | if (o == NULL) |
| 3254 | return info->main_filename; |
| 3255 | info->bincl_stack = o->next_stack; |
| 3256 | |
| 3257 | o->file_types = info->file_types[o->file]; |
| 3258 | |
| 3259 | if (info->bincl_stack == NULL) |
| 3260 | return info->main_filename; |
| 3261 | return info->bincl_stack->name; |
| 3262 | } |
| 3263 | |
| 3264 | /* Handle an N_EXCL: get the types from the corresponding N_BINCL. */ |
| 3265 | |
| 3266 | static boolean |
| 3267 | find_excl (info, name, hash) |
| 3268 | struct stab_handle *info; |
| 3269 | const char *name; |
| 3270 | bfd_vma hash; |
| 3271 | { |
| 3272 | struct bincl_file *l; |
| 3273 | |
| 3274 | ++info->files; |
| 3275 | info->file_types = ((struct stab_types **) |
| 3276 | xrealloc ((PTR) info->file_types, |
| 3277 | (info->files |
| 3278 | * sizeof *info->file_types))); |
| 3279 | |
| 3280 | for (l = info->bincl_list; l != NULL; l = l->next) |
| 3281 | if (l->hash == hash && strcmp (l->name, name) == 0) |
| 3282 | break; |
| 3283 | if (l == NULL) |
| 3284 | { |
| 3285 | warn_stab (name, _("Undefined N_EXCL")); |
| 3286 | info->file_types[info->files - 1] = NULL; |
| 3287 | return true; |
| 3288 | } |
| 3289 | |
| 3290 | info->file_types[info->files - 1] = l->file_types; |
| 3291 | |
| 3292 | return true; |
| 3293 | } |
| 3294 | |
| 3295 | /* Handle a variable definition. gcc emits variable definitions for a |
| 3296 | block before the N_LBRAC, so we must hold onto them until we see |
| 3297 | it. The SunPRO compiler emits variable definitions after the |
| 3298 | N_LBRAC, so we can call debug_record_variable immediately. */ |
| 3299 | |
| 3300 | static boolean |
| 3301 | stab_record_variable (dhandle, info, name, type, kind, val) |
| 3302 | PTR dhandle; |
| 3303 | struct stab_handle *info; |
| 3304 | const char *name; |
| 3305 | debug_type type; |
| 3306 | enum debug_var_kind kind; |
| 3307 | bfd_vma val; |
| 3308 | { |
| 3309 | struct stab_pending_var *v; |
| 3310 | |
| 3311 | if ((kind == DEBUG_GLOBAL || kind == DEBUG_STATIC) |
| 3312 | || ! info->within_function |
| 3313 | || (info->gcc_compiled == 0 && info->n_opt_found)) |
| 3314 | return debug_record_variable (dhandle, name, type, kind, val); |
| 3315 | |
| 3316 | v = (struct stab_pending_var *) xmalloc (sizeof *v); |
| 3317 | memset (v, 0, sizeof *v); |
| 3318 | |
| 3319 | v->next = info->pending; |
| 3320 | v->name = name; |
| 3321 | v->type = type; |
| 3322 | v->kind = kind; |
| 3323 | v->val = val; |
| 3324 | info->pending = v; |
| 3325 | |
| 3326 | return true; |
| 3327 | } |
| 3328 | |
| 3329 | /* Emit pending variable definitions. This is called after we see the |
| 3330 | N_LBRAC that starts the block. */ |
| 3331 | |
| 3332 | static boolean |
| 3333 | stab_emit_pending_vars (dhandle, info) |
| 3334 | PTR dhandle; |
| 3335 | struct stab_handle *info; |
| 3336 | { |
| 3337 | struct stab_pending_var *v; |
| 3338 | |
| 3339 | v = info->pending; |
| 3340 | while (v != NULL) |
| 3341 | { |
| 3342 | struct stab_pending_var *next; |
| 3343 | |
| 3344 | if (! debug_record_variable (dhandle, v->name, v->type, v->kind, v->val)) |
| 3345 | return false; |
| 3346 | |
| 3347 | next = v->next; |
| 3348 | free (v); |
| 3349 | v = next; |
| 3350 | } |
| 3351 | |
| 3352 | info->pending = NULL; |
| 3353 | |
| 3354 | return true; |
| 3355 | } |
| 3356 | |
| 3357 | /* Find the slot for a type in the database. */ |
| 3358 | |
| 3359 | static debug_type * |
| 3360 | stab_find_slot (info, typenums) |
| 3361 | struct stab_handle *info; |
| 3362 | const int *typenums; |
| 3363 | { |
| 3364 | int filenum; |
| 3365 | int index; |
| 3366 | struct stab_types **ps; |
| 3367 | |
| 3368 | filenum = typenums[0]; |
| 3369 | index = typenums[1]; |
| 3370 | |
| 3371 | if (filenum < 0 || (unsigned int) filenum >= info->files) |
| 3372 | { |
| 3373 | fprintf (stderr, _("Type file number %d out of range\n"), filenum); |
| 3374 | return NULL; |
| 3375 | } |
| 3376 | if (index < 0) |
| 3377 | { |
| 3378 | fprintf (stderr, _("Type index number %d out of range\n"), index); |
| 3379 | return NULL; |
| 3380 | } |
| 3381 | |
| 3382 | ps = info->file_types + filenum; |
| 3383 | |
| 3384 | while (index >= STAB_TYPES_SLOTS) |
| 3385 | { |
| 3386 | if (*ps == NULL) |
| 3387 | { |
| 3388 | *ps = (struct stab_types *) xmalloc (sizeof **ps); |
| 3389 | memset (*ps, 0, sizeof **ps); |
| 3390 | } |
| 3391 | ps = &(*ps)->next; |
| 3392 | index -= STAB_TYPES_SLOTS; |
| 3393 | } |
| 3394 | if (*ps == NULL) |
| 3395 | { |
| 3396 | *ps = (struct stab_types *) xmalloc (sizeof **ps); |
| 3397 | memset (*ps, 0, sizeof **ps); |
| 3398 | } |
| 3399 | |
| 3400 | return (*ps)->types + index; |
| 3401 | } |
| 3402 | |
| 3403 | /* Find a type given a type number. If the type has not been |
| 3404 | allocated yet, create an indirect type. */ |
| 3405 | |
| 3406 | static debug_type |
| 3407 | stab_find_type (dhandle, info, typenums) |
| 3408 | PTR dhandle; |
| 3409 | struct stab_handle *info; |
| 3410 | const int *typenums; |
| 3411 | { |
| 3412 | debug_type *slot; |
| 3413 | |
| 3414 | if (typenums[0] == 0 && typenums[1] < 0) |
| 3415 | { |
| 3416 | /* A negative type number indicates an XCOFF builtin type. */ |
| 3417 | return stab_xcoff_builtin_type (dhandle, info, typenums[1]); |
| 3418 | } |
| 3419 | |
| 3420 | slot = stab_find_slot (info, typenums); |
| 3421 | if (slot == NULL) |
| 3422 | return DEBUG_TYPE_NULL; |
| 3423 | |
| 3424 | if (*slot == DEBUG_TYPE_NULL) |
| 3425 | return debug_make_indirect_type (dhandle, slot, (const char *) NULL); |
| 3426 | |
| 3427 | return *slot; |
| 3428 | } |
| 3429 | |
| 3430 | /* Record that a given type number refers to a given type. */ |
| 3431 | |
| 3432 | static boolean |
| 3433 | stab_record_type (dhandle, info, typenums, type) |
| 3434 | PTR dhandle ATTRIBUTE_UNUSED; |
| 3435 | struct stab_handle *info; |
| 3436 | const int *typenums; |
| 3437 | debug_type type; |
| 3438 | { |
| 3439 | debug_type *slot; |
| 3440 | |
| 3441 | slot = stab_find_slot (info, typenums); |
| 3442 | if (slot == NULL) |
| 3443 | return false; |
| 3444 | |
| 3445 | /* gdb appears to ignore type redefinitions, so we do as well. */ |
| 3446 | |
| 3447 | *slot = type; |
| 3448 | |
| 3449 | return true; |
| 3450 | } |
| 3451 | |
| 3452 | /* Return an XCOFF builtin type. */ |
| 3453 | |
| 3454 | static debug_type |
| 3455 | stab_xcoff_builtin_type (dhandle, info, typenum) |
| 3456 | PTR dhandle; |
| 3457 | struct stab_handle *info; |
| 3458 | int typenum; |
| 3459 | { |
| 3460 | debug_type rettype; |
| 3461 | const char *name; |
| 3462 | |
| 3463 | if (typenum >= 0 || typenum < -XCOFF_TYPE_COUNT) |
| 3464 | { |
| 3465 | fprintf (stderr, _("Unrecognized XCOFF type %d\n"), typenum); |
| 3466 | return DEBUG_TYPE_NULL; |
| 3467 | } |
| 3468 | if (info->xcoff_types[-typenum] != NULL) |
| 3469 | return info->xcoff_types[-typenum]; |
| 3470 | |
| 3471 | switch (-typenum) |
| 3472 | { |
| 3473 | case 1: |
| 3474 | /* The size of this and all the other types are fixed, defined |
| 3475 | by the debugging format. */ |
| 3476 | name = "int"; |
| 3477 | rettype = debug_make_int_type (dhandle, 4, false); |
| 3478 | break; |
| 3479 | case 2: |
| 3480 | name = "char"; |
| 3481 | rettype = debug_make_int_type (dhandle, 1, false); |
| 3482 | break; |
| 3483 | case 3: |
| 3484 | name = "short"; |
| 3485 | rettype = debug_make_int_type (dhandle, 2, false); |
| 3486 | break; |
| 3487 | case 4: |
| 3488 | name = "long"; |
| 3489 | rettype = debug_make_int_type (dhandle, 4, false); |
| 3490 | break; |
| 3491 | case 5: |
| 3492 | name = "unsigned char"; |
| 3493 | rettype = debug_make_int_type (dhandle, 1, true); |
| 3494 | break; |
| 3495 | case 6: |
| 3496 | name = "signed char"; |
| 3497 | rettype = debug_make_int_type (dhandle, 1, false); |
| 3498 | break; |
| 3499 | case 7: |
| 3500 | name = "unsigned short"; |
| 3501 | rettype = debug_make_int_type (dhandle, 2, true); |
| 3502 | break; |
| 3503 | case 8: |
| 3504 | name = "unsigned int"; |
| 3505 | rettype = debug_make_int_type (dhandle, 4, true); |
| 3506 | break; |
| 3507 | case 9: |
| 3508 | name = "unsigned"; |
| 3509 | rettype = debug_make_int_type (dhandle, 4, true); |
| 3510 | case 10: |
| 3511 | name = "unsigned long"; |
| 3512 | rettype = debug_make_int_type (dhandle, 4, true); |
| 3513 | break; |
| 3514 | case 11: |
| 3515 | name = "void"; |
| 3516 | rettype = debug_make_void_type (dhandle); |
| 3517 | break; |
| 3518 | case 12: |
| 3519 | /* IEEE single precision (32 bit). */ |
| 3520 | name = "float"; |
| 3521 | rettype = debug_make_float_type (dhandle, 4); |
| 3522 | break; |
| 3523 | case 13: |
| 3524 | /* IEEE double precision (64 bit). */ |
| 3525 | name = "double"; |
| 3526 | rettype = debug_make_float_type (dhandle, 8); |
| 3527 | break; |
| 3528 | case 14: |
| 3529 | /* This is an IEEE double on the RS/6000, and different machines |
| 3530 | with different sizes for "long double" should use different |
| 3531 | negative type numbers. See stabs.texinfo. */ |
| 3532 | name = "long double"; |
| 3533 | rettype = debug_make_float_type (dhandle, 8); |
| 3534 | break; |
| 3535 | case 15: |
| 3536 | name = "integer"; |
| 3537 | rettype = debug_make_int_type (dhandle, 4, false); |
| 3538 | break; |
| 3539 | case 16: |
| 3540 | name = "boolean"; |
| 3541 | rettype = debug_make_bool_type (dhandle, 4); |
| 3542 | break; |
| 3543 | case 17: |
| 3544 | name = "short real"; |
| 3545 | rettype = debug_make_float_type (dhandle, 4); |
| 3546 | break; |
| 3547 | case 18: |
| 3548 | name = "real"; |
| 3549 | rettype = debug_make_float_type (dhandle, 8); |
| 3550 | break; |
| 3551 | case 19: |
| 3552 | /* FIXME */ |
| 3553 | name = "stringptr"; |
| 3554 | rettype = NULL; |
| 3555 | break; |
| 3556 | case 20: |
| 3557 | /* FIXME */ |
| 3558 | name = "character"; |
| 3559 | rettype = debug_make_int_type (dhandle, 1, true); |
| 3560 | break; |
| 3561 | case 21: |
| 3562 | name = "logical*1"; |
| 3563 | rettype = debug_make_bool_type (dhandle, 1); |
| 3564 | break; |
| 3565 | case 22: |
| 3566 | name = "logical*2"; |
| 3567 | rettype = debug_make_bool_type (dhandle, 2); |
| 3568 | break; |
| 3569 | case 23: |
| 3570 | name = "logical*4"; |
| 3571 | rettype = debug_make_bool_type (dhandle, 4); |
| 3572 | break; |
| 3573 | case 24: |
| 3574 | name = "logical"; |
| 3575 | rettype = debug_make_bool_type (dhandle, 4); |
| 3576 | break; |
| 3577 | case 25: |
| 3578 | /* Complex type consisting of two IEEE single precision values. */ |
| 3579 | name = "complex"; |
| 3580 | rettype = debug_make_complex_type (dhandle, 8); |
| 3581 | break; |
| 3582 | case 26: |
| 3583 | /* Complex type consisting of two IEEE double precision values. */ |
| 3584 | name = "double complex"; |
| 3585 | rettype = debug_make_complex_type (dhandle, 16); |
| 3586 | break; |
| 3587 | case 27: |
| 3588 | name = "integer*1"; |
| 3589 | rettype = debug_make_int_type (dhandle, 1, false); |
| 3590 | break; |
| 3591 | case 28: |
| 3592 | name = "integer*2"; |
| 3593 | rettype = debug_make_int_type (dhandle, 2, false); |
| 3594 | break; |
| 3595 | case 29: |
| 3596 | name = "integer*4"; |
| 3597 | rettype = debug_make_int_type (dhandle, 4, false); |
| 3598 | break; |
| 3599 | case 30: |
| 3600 | /* FIXME */ |
| 3601 | name = "wchar"; |
| 3602 | rettype = debug_make_int_type (dhandle, 2, false); |
| 3603 | break; |
| 3604 | case 31: |
| 3605 | name = "long long"; |
| 3606 | rettype = debug_make_int_type (dhandle, 8, false); |
| 3607 | break; |
| 3608 | case 32: |
| 3609 | name = "unsigned long long"; |
| 3610 | rettype = debug_make_int_type (dhandle, 8, true); |
| 3611 | break; |
| 3612 | case 33: |
| 3613 | name = "logical*8"; |
| 3614 | rettype = debug_make_bool_type (dhandle, 8); |
| 3615 | break; |
| 3616 | case 34: |
| 3617 | name = "integer*8"; |
| 3618 | rettype = debug_make_int_type (dhandle, 8, false); |
| 3619 | break; |
| 3620 | default: |
| 3621 | abort (); |
| 3622 | } |
| 3623 | |
| 3624 | rettype = debug_name_type (dhandle, name, rettype); |
| 3625 | |
| 3626 | info->xcoff_types[-typenum] = rettype; |
| 3627 | |
| 3628 | return rettype; |
| 3629 | } |
| 3630 | |
| 3631 | /* Find or create a tagged type. */ |
| 3632 | |
| 3633 | static debug_type |
| 3634 | stab_find_tagged_type (dhandle, info, p, len, kind) |
| 3635 | PTR dhandle; |
| 3636 | struct stab_handle *info; |
| 3637 | const char *p; |
| 3638 | int len; |
| 3639 | enum debug_type_kind kind; |
| 3640 | { |
| 3641 | char *name; |
| 3642 | debug_type dtype; |
| 3643 | struct stab_tag *st; |
| 3644 | |
| 3645 | name = savestring (p, len); |
| 3646 | |
| 3647 | /* We pass DEBUG_KIND_ILLEGAL because we want all tags in the same |
| 3648 | namespace. This is right for C, and I don't know how to handle |
| 3649 | other languages. FIXME. */ |
| 3650 | dtype = debug_find_tagged_type (dhandle, name, DEBUG_KIND_ILLEGAL); |
| 3651 | if (dtype != DEBUG_TYPE_NULL) |
| 3652 | { |
| 3653 | free (name); |
| 3654 | return dtype; |
| 3655 | } |
| 3656 | |
| 3657 | /* We need to allocate an entry on the undefined tag list. */ |
| 3658 | for (st = info->tags; st != NULL; st = st->next) |
| 3659 | { |
| 3660 | if (st->name[0] == name[0] |
| 3661 | && strcmp (st->name, name) == 0) |
| 3662 | { |
| 3663 | if (st->kind == DEBUG_KIND_ILLEGAL) |
| 3664 | st->kind = kind; |
| 3665 | free (name); |
| 3666 | break; |
| 3667 | } |
| 3668 | } |
| 3669 | if (st == NULL) |
| 3670 | { |
| 3671 | st = (struct stab_tag *) xmalloc (sizeof *st); |
| 3672 | memset (st, 0, sizeof *st); |
| 3673 | |
| 3674 | st->next = info->tags; |
| 3675 | st->name = name; |
| 3676 | st->kind = kind; |
| 3677 | st->slot = DEBUG_TYPE_NULL; |
| 3678 | st->type = debug_make_indirect_type (dhandle, &st->slot, name); |
| 3679 | info->tags = st; |
| 3680 | } |
| 3681 | |
| 3682 | return st->type; |
| 3683 | } |
| 3684 | \f |
| 3685 | /* In order to get the correct argument types for a stubbed method, we |
| 3686 | need to extract the argument types from a C++ mangled string. |
| 3687 | Since the argument types can refer back to the return type, this |
| 3688 | means that we must demangle the entire physical name. In gdb this |
| 3689 | is done by calling cplus_demangle and running the results back |
| 3690 | through the C++ expression parser. Since we have no expression |
| 3691 | parser, we must duplicate much of the work of cplus_demangle here. |
| 3692 | |
| 3693 | We assume that GNU style demangling is used, since this is only |
| 3694 | done for method stubs, and only g++ should output that form of |
| 3695 | debugging information. */ |
| 3696 | |
| 3697 | /* This structure is used to hold a pointer to type information which |
| 3698 | demangling a string. */ |
| 3699 | |
| 3700 | struct stab_demangle_typestring |
| 3701 | { |
| 3702 | /* The start of the type. This is not null terminated. */ |
| 3703 | const char *typestring; |
| 3704 | /* The length of the type. */ |
| 3705 | unsigned int len; |
| 3706 | }; |
| 3707 | |
| 3708 | /* This structure is used to hold information while demangling a |
| 3709 | string. */ |
| 3710 | |
| 3711 | struct stab_demangle_info |
| 3712 | { |
| 3713 | /* The debugging information handle. */ |
| 3714 | PTR dhandle; |
| 3715 | /* The stab information handle. */ |
| 3716 | struct stab_handle *info; |
| 3717 | /* The array of arguments we are building. */ |
| 3718 | debug_type *args; |
| 3719 | /* Whether the method takes a variable number of arguments. */ |
| 3720 | boolean varargs; |
| 3721 | /* The array of types we have remembered. */ |
| 3722 | struct stab_demangle_typestring *typestrings; |
| 3723 | /* The number of typestrings. */ |
| 3724 | unsigned int typestring_count; |
| 3725 | /* The number of typestring slots we have allocated. */ |
| 3726 | unsigned int typestring_alloc; |
| 3727 | }; |
| 3728 | |
| 3729 | static void stab_bad_demangle PARAMS ((const char *)); |
| 3730 | static unsigned int stab_demangle_count PARAMS ((const char **)); |
| 3731 | static boolean stab_demangle_get_count |
| 3732 | PARAMS ((const char **, unsigned int *)); |
| 3733 | static boolean stab_demangle_prefix |
| 3734 | PARAMS ((struct stab_demangle_info *, const char **, unsigned int)); |
| 3735 | static boolean stab_demangle_function_name |
| 3736 | PARAMS ((struct stab_demangle_info *, const char **, const char *)); |
| 3737 | static boolean stab_demangle_signature |
| 3738 | PARAMS ((struct stab_demangle_info *, const char **)); |
| 3739 | static boolean stab_demangle_qualified |
| 3740 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); |
| 3741 | static boolean stab_demangle_template |
| 3742 | PARAMS ((struct stab_demangle_info *, const char **, char **)); |
| 3743 | static boolean stab_demangle_class |
| 3744 | PARAMS ((struct stab_demangle_info *, const char **, const char **)); |
| 3745 | static boolean stab_demangle_args |
| 3746 | PARAMS ((struct stab_demangle_info *, const char **, debug_type **, |
| 3747 | boolean *)); |
| 3748 | static boolean stab_demangle_arg |
| 3749 | PARAMS ((struct stab_demangle_info *, const char **, debug_type **, |
| 3750 | unsigned int *, unsigned int *)); |
| 3751 | static boolean stab_demangle_type |
| 3752 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); |
| 3753 | static boolean stab_demangle_fund_type |
| 3754 | PARAMS ((struct stab_demangle_info *, const char **, debug_type *)); |
| 3755 | static boolean stab_demangle_remember_type |
| 3756 | PARAMS ((struct stab_demangle_info *, const char *, int)); |
| 3757 | |
| 3758 | /* Warn about a bad demangling. */ |
| 3759 | |
| 3760 | static void |
| 3761 | stab_bad_demangle (s) |
| 3762 | const char *s; |
| 3763 | { |
| 3764 | fprintf (stderr, _("bad mangled name `%s'\n"), s); |
| 3765 | } |
| 3766 | |
| 3767 | /* Get a count from a stab string. */ |
| 3768 | |
| 3769 | static unsigned int |
| 3770 | stab_demangle_count (pp) |
| 3771 | const char **pp; |
| 3772 | { |
| 3773 | unsigned int count; |
| 3774 | |
| 3775 | count = 0; |
| 3776 | while (ISDIGIT (**pp)) |
| 3777 | { |
| 3778 | count *= 10; |
| 3779 | count += **pp - '0'; |
| 3780 | ++*pp; |
| 3781 | } |
| 3782 | return count; |
| 3783 | } |
| 3784 | |
| 3785 | /* Require a count in a string. The count may be multiple digits, in |
| 3786 | which case it must end in an underscore. */ |
| 3787 | |
| 3788 | static boolean |
| 3789 | stab_demangle_get_count (pp, pi) |
| 3790 | const char **pp; |
| 3791 | unsigned int *pi; |
| 3792 | { |
| 3793 | if (! ISDIGIT (**pp)) |
| 3794 | return false; |
| 3795 | |
| 3796 | *pi = **pp - '0'; |
| 3797 | ++*pp; |
| 3798 | if (ISDIGIT (**pp)) |
| 3799 | { |
| 3800 | unsigned int count; |
| 3801 | const char *p; |
| 3802 | |
| 3803 | count = *pi; |
| 3804 | p = *pp; |
| 3805 | do |
| 3806 | { |
| 3807 | count *= 10; |
| 3808 | count += *p - '0'; |
| 3809 | ++p; |
| 3810 | } |
| 3811 | while (ISDIGIT (*p)); |
| 3812 | if (*p == '_') |
| 3813 | { |
| 3814 | *pp = p + 1; |
| 3815 | *pi = count; |
| 3816 | } |
| 3817 | } |
| 3818 | |
| 3819 | return true; |
| 3820 | } |
| 3821 | |
| 3822 | /* This function demangles a physical name, returning a NULL |
| 3823 | terminated array of argument types. */ |
| 3824 | |
| 3825 | static debug_type * |
| 3826 | stab_demangle_argtypes (dhandle, info, physname, pvarargs, physname_len) |
| 3827 | PTR dhandle; |
| 3828 | struct stab_handle *info; |
| 3829 | const char *physname; |
| 3830 | boolean *pvarargs; |
| 3831 | unsigned int physname_len; |
| 3832 | { |
| 3833 | struct stab_demangle_info minfo; |
| 3834 | |
| 3835 | minfo.dhandle = dhandle; |
| 3836 | minfo.info = info; |
| 3837 | minfo.args = NULL; |
| 3838 | minfo.varargs = false; |
| 3839 | minfo.typestring_alloc = 10; |
| 3840 | minfo.typestrings = ((struct stab_demangle_typestring *) |
| 3841 | xmalloc (minfo.typestring_alloc |
| 3842 | * sizeof *minfo.typestrings)); |
| 3843 | minfo.typestring_count = 0; |
| 3844 | |
| 3845 | /* cplus_demangle checks for special GNU mangled forms, but we can't |
| 3846 | see any of them in mangled method argument types. */ |
| 3847 | |
| 3848 | if (! stab_demangle_prefix (&minfo, &physname, physname_len)) |
| 3849 | goto error_return; |
| 3850 | |
| 3851 | if (*physname != '\0') |
| 3852 | { |
| 3853 | if (! stab_demangle_signature (&minfo, &physname)) |
| 3854 | goto error_return; |
| 3855 | } |
| 3856 | |
| 3857 | free (minfo.typestrings); |
| 3858 | minfo.typestrings = NULL; |
| 3859 | |
| 3860 | if (minfo.args == NULL) |
| 3861 | fprintf (stderr, _("no argument types in mangled string\n")); |
| 3862 | |
| 3863 | *pvarargs = minfo.varargs; |
| 3864 | return minfo.args; |
| 3865 | |
| 3866 | error_return: |
| 3867 | if (minfo.typestrings != NULL) |
| 3868 | free (minfo.typestrings); |
| 3869 | return NULL; |
| 3870 | } |
| 3871 | |
| 3872 | /* Demangle the prefix of the mangled name. */ |
| 3873 | |
| 3874 | static boolean |
| 3875 | stab_demangle_prefix (minfo, pp, physname_len) |
| 3876 | struct stab_demangle_info *minfo; |
| 3877 | const char **pp; |
| 3878 | unsigned int physname_len; |
| 3879 | { |
| 3880 | const char *scan; |
| 3881 | unsigned int i; |
| 3882 | |
| 3883 | /* cplus_demangle checks for global constructors and destructors, |
| 3884 | but we can't see them in mangled argument types. */ |
| 3885 | |
| 3886 | if (physname_len) |
| 3887 | scan = *pp + physname_len; |
| 3888 | else |
| 3889 | { |
| 3890 | /* Look for `__'. */ |
| 3891 | scan = *pp; |
| 3892 | do |
| 3893 | scan = strchr (scan, '_'); |
| 3894 | while (scan != NULL && *++scan != '_'); |
| 3895 | |
| 3896 | if (scan == NULL) |
| 3897 | { |
| 3898 | stab_bad_demangle (*pp); |
| 3899 | return false; |
| 3900 | } |
| 3901 | |
| 3902 | --scan; |
| 3903 | |
| 3904 | /* We found `__'; move ahead to the last contiguous `__' pair. */ |
| 3905 | i = strspn (scan, "_"); |
| 3906 | if (i > 2) |
| 3907 | scan += i - 2; |
| 3908 | } |
| 3909 | |
| 3910 | if (scan == *pp |
| 3911 | && (ISDIGIT (scan[2]) |
| 3912 | || scan[2] == 'Q' |
| 3913 | || scan[2] == 't')) |
| 3914 | { |
| 3915 | /* This is a GNU style constructor name. */ |
| 3916 | *pp = scan + 2; |
| 3917 | return true; |
| 3918 | } |
| 3919 | else if (scan == *pp |
| 3920 | && ! ISDIGIT (scan[2]) |
| 3921 | && scan[2] != 't') |
| 3922 | { |
| 3923 | /* Look for the `__' that separates the prefix from the |
| 3924 | signature. */ |
| 3925 | while (*scan == '_') |
| 3926 | ++scan; |
| 3927 | scan = strstr (scan, "__"); |
| 3928 | if (scan == NULL || scan[2] == '\0') |
| 3929 | { |
| 3930 | stab_bad_demangle (*pp); |
| 3931 | return false; |
| 3932 | } |
| 3933 | |
| 3934 | return stab_demangle_function_name (minfo, pp, scan); |
| 3935 | } |
| 3936 | else if (scan[2] != '\0') |
| 3937 | { |
| 3938 | /* The name doesn't start with `__', but it does contain `__'. */ |
| 3939 | return stab_demangle_function_name (minfo, pp, scan); |
| 3940 | } |
| 3941 | else |
| 3942 | { |
| 3943 | stab_bad_demangle (*pp); |
| 3944 | return false; |
| 3945 | } |
| 3946 | /*NOTREACHED*/ |
| 3947 | } |
| 3948 | |
| 3949 | /* Demangle a function name prefix. The scan argument points to the |
| 3950 | double underscore which separates the function name from the |
| 3951 | signature. */ |
| 3952 | |
| 3953 | static boolean |
| 3954 | stab_demangle_function_name (minfo, pp, scan) |
| 3955 | struct stab_demangle_info *minfo; |
| 3956 | const char **pp; |
| 3957 | const char *scan; |
| 3958 | { |
| 3959 | const char *name; |
| 3960 | |
| 3961 | /* The string from *pp to scan is the name of the function. We |
| 3962 | don't care about the name, since we just looking for argument |
| 3963 | types. However, for conversion operators, the name may include a |
| 3964 | type which we must remember in order to handle backreferences. */ |
| 3965 | |
| 3966 | name = *pp; |
| 3967 | *pp = scan + 2; |
| 3968 | |
| 3969 | if (*pp - name >= 5 |
| 3970 | && strncmp (name, "type", 4) == 0 |
| 3971 | && (name[4] == '$' || name[4] == '.')) |
| 3972 | { |
| 3973 | const char *tem; |
| 3974 | |
| 3975 | /* This is a type conversion operator. */ |
| 3976 | tem = name + 5; |
| 3977 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) |
| 3978 | return false; |
| 3979 | } |
| 3980 | else if (name[0] == '_' |
| 3981 | && name[1] == '_' |
| 3982 | && name[2] == 'o' |
| 3983 | && name[3] == 'p') |
| 3984 | { |
| 3985 | const char *tem; |
| 3986 | |
| 3987 | /* This is a type conversion operator. */ |
| 3988 | tem = name + 4; |
| 3989 | if (! stab_demangle_type (minfo, &tem, (debug_type *) NULL)) |
| 3990 | return false; |
| 3991 | } |
| 3992 | |
| 3993 | return true; |
| 3994 | } |
| 3995 | |
| 3996 | /* Demangle the signature. This is where the argument types are |
| 3997 | found. */ |
| 3998 | |
| 3999 | static boolean |
| 4000 | stab_demangle_signature (minfo, pp) |
| 4001 | struct stab_demangle_info *minfo; |
| 4002 | const char **pp; |
| 4003 | { |
| 4004 | const char *orig; |
| 4005 | boolean expect_func, func_done; |
| 4006 | const char *hold; |
| 4007 | |
| 4008 | orig = *pp; |
| 4009 | |
| 4010 | expect_func = false; |
| 4011 | func_done = false; |
| 4012 | hold = NULL; |
| 4013 | |
| 4014 | while (**pp != '\0') |
| 4015 | { |
| 4016 | switch (**pp) |
| 4017 | { |
| 4018 | case 'Q': |
| 4019 | hold = *pp; |
| 4020 | if (! stab_demangle_qualified (minfo, pp, (debug_type *) NULL) |
| 4021 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) |
| 4022 | return false; |
| 4023 | expect_func = true; |
| 4024 | hold = NULL; |
| 4025 | break; |
| 4026 | |
| 4027 | case 'S': |
| 4028 | /* Static member function. FIXME: Can this happen? */ |
| 4029 | if (hold == NULL) |
| 4030 | hold = *pp; |
| 4031 | ++*pp; |
| 4032 | break; |
| 4033 | |
| 4034 | case 'C': |
| 4035 | /* Const member function. */ |
| 4036 | if (hold == NULL) |
| 4037 | hold = *pp; |
| 4038 | ++*pp; |
| 4039 | break; |
| 4040 | |
| 4041 | case '0': case '1': case '2': case '3': case '4': |
| 4042 | case '5': case '6': case '7': case '8': case '9': |
| 4043 | if (hold == NULL) |
| 4044 | hold = *pp; |
| 4045 | if (! stab_demangle_class (minfo, pp, (const char **) NULL) |
| 4046 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) |
| 4047 | return false; |
| 4048 | expect_func = true; |
| 4049 | hold = NULL; |
| 4050 | break; |
| 4051 | |
| 4052 | case 'F': |
| 4053 | /* Function. I don't know if this actually happens with g++ |
| 4054 | output. */ |
| 4055 | hold = NULL; |
| 4056 | func_done = true; |
| 4057 | ++*pp; |
| 4058 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
| 4059 | return false; |
| 4060 | break; |
| 4061 | |
| 4062 | case 't': |
| 4063 | /* Template. */ |
| 4064 | if (hold == NULL) |
| 4065 | hold = *pp; |
| 4066 | if (! stab_demangle_template (minfo, pp, (char **) NULL) |
| 4067 | || ! stab_demangle_remember_type (minfo, hold, *pp - hold)) |
| 4068 | return false; |
| 4069 | hold = NULL; |
| 4070 | expect_func = true; |
| 4071 | break; |
| 4072 | |
| 4073 | case '_': |
| 4074 | /* At the outermost level, we cannot have a return type |
| 4075 | specified, so if we run into another '_' at this point we |
| 4076 | are dealing with a mangled name that is either bogus, or |
| 4077 | has been mangled by some algorithm we don't know how to |
| 4078 | deal with. So just reject the entire demangling. */ |
| 4079 | stab_bad_demangle (orig); |
| 4080 | return false; |
| 4081 | |
| 4082 | default: |
| 4083 | /* Assume we have stumbled onto the first outermost function |
| 4084 | argument token, and start processing args. */ |
| 4085 | func_done = true; |
| 4086 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
| 4087 | return false; |
| 4088 | break; |
| 4089 | } |
| 4090 | |
| 4091 | if (expect_func) |
| 4092 | { |
| 4093 | func_done = true; |
| 4094 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
| 4095 | return false; |
| 4096 | } |
| 4097 | } |
| 4098 | |
| 4099 | if (! func_done) |
| 4100 | { |
| 4101 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and |
| 4102 | bar__3fooi is 'foo::bar(int)'. We get here when we find the |
| 4103 | first case, and need to ensure that the '(void)' gets added |
| 4104 | to the current declp. */ |
| 4105 | if (! stab_demangle_args (minfo, pp, &minfo->args, &minfo->varargs)) |
| 4106 | return false; |
| 4107 | } |
| 4108 | |
| 4109 | return true; |
| 4110 | } |
| 4111 | |
| 4112 | /* Demangle a qualified name, such as "Q25Outer5Inner" which is the |
| 4113 | mangled form of "Outer::Inner". */ |
| 4114 | |
| 4115 | static boolean |
| 4116 | stab_demangle_qualified (minfo, pp, ptype) |
| 4117 | struct stab_demangle_info *minfo; |
| 4118 | const char **pp; |
| 4119 | debug_type *ptype; |
| 4120 | { |
| 4121 | const char *orig; |
| 4122 | const char *p; |
| 4123 | unsigned int qualifiers; |
| 4124 | debug_type context; |
| 4125 | |
| 4126 | orig = *pp; |
| 4127 | |
| 4128 | switch ((*pp)[1]) |
| 4129 | { |
| 4130 | case '_': |
| 4131 | /* GNU mangled name with more than 9 classes. The count is |
| 4132 | preceded by an underscore (to distinguish it from the <= 9 |
| 4133 | case) and followed by an underscore. */ |
| 4134 | p = *pp + 2; |
| 4135 | if (! ISDIGIT (*p) || *p == '0') |
| 4136 | { |
| 4137 | stab_bad_demangle (orig); |
| 4138 | return false; |
| 4139 | } |
| 4140 | qualifiers = atoi (p); |
| 4141 | while (ISDIGIT (*p)) |
| 4142 | ++p; |
| 4143 | if (*p != '_') |
| 4144 | { |
| 4145 | stab_bad_demangle (orig); |
| 4146 | return false; |
| 4147 | } |
| 4148 | *pp = p + 1; |
| 4149 | break; |
| 4150 | |
| 4151 | case '1': case '2': case '3': case '4': case '5': |
| 4152 | case '6': case '7': case '8': case '9': |
| 4153 | qualifiers = (*pp)[1] - '0'; |
| 4154 | /* Skip an optional underscore after the count. */ |
| 4155 | if ((*pp)[2] == '_') |
| 4156 | ++*pp; |
| 4157 | *pp += 2; |
| 4158 | break; |
| 4159 | |
| 4160 | case '0': |
| 4161 | default: |
| 4162 | stab_bad_demangle (orig); |
| 4163 | return false; |
| 4164 | } |
| 4165 | |
| 4166 | context = DEBUG_TYPE_NULL; |
| 4167 | |
| 4168 | /* Pick off the names. */ |
| 4169 | while (qualifiers-- > 0) |
| 4170 | { |
| 4171 | if (**pp == '_') |
| 4172 | ++*pp; |
| 4173 | if (**pp == 't') |
| 4174 | { |
| 4175 | char *name; |
| 4176 | |
| 4177 | if (! stab_demangle_template (minfo, pp, |
| 4178 | ptype != NULL ? &name : NULL)) |
| 4179 | return false; |
| 4180 | |
| 4181 | if (ptype != NULL) |
| 4182 | { |
| 4183 | context = stab_find_tagged_type (minfo->dhandle, minfo->info, |
| 4184 | name, strlen (name), |
| 4185 | DEBUG_KIND_CLASS); |
| 4186 | free (name); |
| 4187 | if (context == DEBUG_TYPE_NULL) |
| 4188 | return false; |
| 4189 | } |
| 4190 | } |
| 4191 | else |
| 4192 | { |
| 4193 | unsigned int len; |
| 4194 | |
| 4195 | len = stab_demangle_count (pp); |
| 4196 | if (strlen (*pp) < len) |
| 4197 | { |
| 4198 | stab_bad_demangle (orig); |
| 4199 | return false; |
| 4200 | } |
| 4201 | |
| 4202 | if (ptype != NULL) |
| 4203 | { |
| 4204 | const debug_field *fields; |
| 4205 | |
| 4206 | fields = NULL; |
| 4207 | if (context != DEBUG_TYPE_NULL) |
| 4208 | fields = debug_get_fields (minfo->dhandle, context); |
| 4209 | |
| 4210 | context = DEBUG_TYPE_NULL; |
| 4211 | |
| 4212 | if (fields != NULL) |
| 4213 | { |
| 4214 | char *name; |
| 4215 | |
| 4216 | /* Try to find the type by looking through the |
| 4217 | fields of context until we find a field with the |
| 4218 | same type. This ought to work for a class |
| 4219 | defined within a class, but it won't work for, |
| 4220 | e.g., an enum defined within a class. stabs does |
| 4221 | not give us enough information to figure out the |
| 4222 | latter case. */ |
| 4223 | |
| 4224 | name = savestring (*pp, len); |
| 4225 | |
| 4226 | for (; *fields != DEBUG_FIELD_NULL; fields++) |
| 4227 | { |
| 4228 | debug_type ft; |
| 4229 | const char *dn; |
| 4230 | |
| 4231 | ft = debug_get_field_type (minfo->dhandle, *fields); |
| 4232 | if (ft == NULL) |
| 4233 | return false; |
| 4234 | dn = debug_get_type_name (minfo->dhandle, ft); |
| 4235 | if (dn != NULL && strcmp (dn, name) == 0) |
| 4236 | { |
| 4237 | context = ft; |
| 4238 | break; |
| 4239 | } |
| 4240 | } |
| 4241 | |
| 4242 | free (name); |
| 4243 | } |
| 4244 | |
| 4245 | if (context == DEBUG_TYPE_NULL) |
| 4246 | { |
| 4247 | /* We have to fall back on finding the type by name. |
| 4248 | If there are more types to come, then this must |
| 4249 | be a class. Otherwise, it could be anything. */ |
| 4250 | |
| 4251 | if (qualifiers == 0) |
| 4252 | { |
| 4253 | char *name; |
| 4254 | |
| 4255 | name = savestring (*pp, len); |
| 4256 | context = debug_find_named_type (minfo->dhandle, |
| 4257 | name); |
| 4258 | free (name); |
| 4259 | } |
| 4260 | |
| 4261 | if (context == DEBUG_TYPE_NULL) |
| 4262 | { |
| 4263 | context = stab_find_tagged_type (minfo->dhandle, |
| 4264 | minfo->info, |
| 4265 | *pp, len, |
| 4266 | (qualifiers == 0 |
| 4267 | ? DEBUG_KIND_ILLEGAL |
| 4268 | : DEBUG_KIND_CLASS)); |
| 4269 | if (context == DEBUG_TYPE_NULL) |
| 4270 | return false; |
| 4271 | } |
| 4272 | } |
| 4273 | } |
| 4274 | |
| 4275 | *pp += len; |
| 4276 | } |
| 4277 | } |
| 4278 | |
| 4279 | if (ptype != NULL) |
| 4280 | *ptype = context; |
| 4281 | |
| 4282 | return true; |
| 4283 | } |
| 4284 | |
| 4285 | /* Demangle a template. If PNAME is not NULL, this sets *PNAME to a |
| 4286 | string representation of the template. */ |
| 4287 | |
| 4288 | static boolean |
| 4289 | stab_demangle_template (minfo, pp, pname) |
| 4290 | struct stab_demangle_info *minfo; |
| 4291 | const char **pp; |
| 4292 | char **pname; |
| 4293 | { |
| 4294 | const char *orig; |
| 4295 | unsigned int r, i; |
| 4296 | |
| 4297 | orig = *pp; |
| 4298 | |
| 4299 | ++*pp; |
| 4300 | |
| 4301 | /* Skip the template name. */ |
| 4302 | r = stab_demangle_count (pp); |
| 4303 | if (r == 0 || strlen (*pp) < r) |
| 4304 | { |
| 4305 | stab_bad_demangle (orig); |
| 4306 | return false; |
| 4307 | } |
| 4308 | *pp += r; |
| 4309 | |
| 4310 | /* Get the size of the parameter list. */ |
| 4311 | if (stab_demangle_get_count (pp, &r) == 0) |
| 4312 | { |
| 4313 | stab_bad_demangle (orig); |
| 4314 | return false; |
| 4315 | } |
| 4316 | |
| 4317 | for (i = 0; i < r; i++) |
| 4318 | { |
| 4319 | if (**pp == 'Z') |
| 4320 | { |
| 4321 | /* This is a type parameter. */ |
| 4322 | ++*pp; |
| 4323 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) |
| 4324 | return false; |
| 4325 | } |
| 4326 | else |
| 4327 | { |
| 4328 | const char *old_p; |
| 4329 | boolean pointerp, realp, integralp, charp, boolp; |
| 4330 | boolean done; |
| 4331 | |
| 4332 | old_p = *pp; |
| 4333 | pointerp = false; |
| 4334 | realp = false; |
| 4335 | integralp = false; |
| 4336 | charp = false; |
| 4337 | boolp = false; |
| 4338 | done = false; |
| 4339 | |
| 4340 | /* This is a value parameter. */ |
| 4341 | |
| 4342 | if (! stab_demangle_type (minfo, pp, (debug_type *) NULL)) |
| 4343 | return false; |
| 4344 | |
| 4345 | while (*old_p != '\0' && ! done) |
| 4346 | { |
| 4347 | switch (*old_p) |
| 4348 | { |
| 4349 | case 'P': |
| 4350 | case 'p': |
| 4351 | case 'R': |
| 4352 | pointerp = true; |
| 4353 | done = true; |
| 4354 | break; |
| 4355 | case 'C': /* Const. */ |
| 4356 | case 'S': /* Signed. */ |
| 4357 | case 'U': /* Unsigned. */ |
| 4358 | case 'V': /* Volatile. */ |
| 4359 | case 'F': /* Function. */ |
| 4360 | case 'M': /* Member function. */ |
| 4361 | case 'O': /* ??? */ |
| 4362 | ++old_p; |
| 4363 | break; |
| 4364 | case 'Q': /* Qualified name. */ |
| 4365 | integralp = true; |
| 4366 | done = true; |
| 4367 | break; |
| 4368 | case 'T': /* Remembered type. */ |
| 4369 | abort (); |
| 4370 | case 'v': /* Void. */ |
| 4371 | abort (); |
| 4372 | case 'x': /* Long long. */ |
| 4373 | case 'l': /* Long. */ |
| 4374 | case 'i': /* Int. */ |
| 4375 | case 's': /* Short. */ |
| 4376 | case 'w': /* Wchar_t. */ |
| 4377 | integralp = true; |
| 4378 | done = true; |
| 4379 | break; |
| 4380 | case 'b': /* Bool. */ |
| 4381 | boolp = true; |
| 4382 | done = true; |
| 4383 | break; |
| 4384 | case 'c': /* Char. */ |
| 4385 | charp = true; |
| 4386 | done = true; |
| 4387 | break; |
| 4388 | case 'r': /* Long double. */ |
| 4389 | case 'd': /* Double. */ |
| 4390 | case 'f': /* Float. */ |
| 4391 | realp = true; |
| 4392 | done = true; |
| 4393 | break; |
| 4394 | default: |
| 4395 | /* Assume it's a user defined integral type. */ |
| 4396 | integralp = true; |
| 4397 | done = true; |
| 4398 | break; |
| 4399 | } |
| 4400 | } |
| 4401 | |
| 4402 | if (integralp) |
| 4403 | { |
| 4404 | if (**pp == 'm') |
| 4405 | ++*pp; |
| 4406 | while (ISDIGIT (**pp)) |
| 4407 | ++*pp; |
| 4408 | } |
| 4409 | else if (charp) |
| 4410 | { |
| 4411 | unsigned int val; |
| 4412 | |
| 4413 | if (**pp == 'm') |
| 4414 | ++*pp; |
| 4415 | val = stab_demangle_count (pp); |
| 4416 | if (val == 0) |
| 4417 | { |
| 4418 | stab_bad_demangle (orig); |
| 4419 | return false; |
| 4420 | } |
| 4421 | } |
| 4422 | else if (boolp) |
| 4423 | { |
| 4424 | unsigned int val; |
| 4425 | |
| 4426 | val = stab_demangle_count (pp); |
| 4427 | if (val != 0 && val != 1) |
| 4428 | { |
| 4429 | stab_bad_demangle (orig); |
| 4430 | return false; |
| 4431 | } |
| 4432 | } |
| 4433 | else if (realp) |
| 4434 | { |
| 4435 | if (**pp == 'm') |
| 4436 | ++*pp; |
| 4437 | while (ISDIGIT (**pp)) |
| 4438 | ++*pp; |
| 4439 | if (**pp == '.') |
| 4440 | { |
| 4441 | ++*pp; |
| 4442 | while (ISDIGIT (**pp)) |
| 4443 | ++*pp; |
| 4444 | } |
| 4445 | if (**pp == 'e') |
| 4446 | { |
| 4447 | ++*pp; |
| 4448 | while (ISDIGIT (**pp)) |
| 4449 | ++*pp; |
| 4450 | } |
| 4451 | } |
| 4452 | else if (pointerp) |
| 4453 | { |
| 4454 | unsigned int len; |
| 4455 | |
| 4456 | if (! stab_demangle_get_count (pp, &len)) |
| 4457 | { |
| 4458 | stab_bad_demangle (orig); |
| 4459 | return false; |
| 4460 | } |
| 4461 | *pp += len; |
| 4462 | } |
| 4463 | } |
| 4464 | } |
| 4465 | |
| 4466 | /* We can translate this to a string fairly easily by invoking the |
| 4467 | regular demangling routine. */ |
| 4468 | if (pname != NULL) |
| 4469 | { |
| 4470 | char *s1, *s2, *s3, *s4 = NULL; |
| 4471 | char *from, *to; |
| 4472 | |
| 4473 | s1 = savestring (orig, *pp - orig); |
| 4474 | |
| 4475 | s2 = concat ("NoSuchStrinG__", s1, (const char *) NULL); |
| 4476 | |
| 4477 | free (s1); |
| 4478 | |
| 4479 | s3 = cplus_demangle (s2, DMGL_ANSI); |
| 4480 | |
| 4481 | free (s2); |
| 4482 | |
| 4483 | if (s3 != NULL) |
| 4484 | s4 = strstr (s3, "::NoSuchStrinG"); |
| 4485 | if (s3 == NULL || s4 == NULL) |
| 4486 | { |
| 4487 | stab_bad_demangle (orig); |
| 4488 | if (s3 != NULL) |
| 4489 | free (s3); |
| 4490 | return false; |
| 4491 | } |
| 4492 | |
| 4493 | /* Eliminating all spaces, except those between > characters, |
| 4494 | makes it more likely that the demangled name will match the |
| 4495 | name which g++ used as the structure name. */ |
| 4496 | for (from = to = s3; from != s4; ++from) |
| 4497 | if (*from != ' ' |
| 4498 | || (from[1] == '>' && from > s3 && from[-1] == '>')) |
| 4499 | *to++ = *from; |
| 4500 | |
| 4501 | *pname = savestring (s3, to - s3); |
| 4502 | |
| 4503 | free (s3); |
| 4504 | } |
| 4505 | |
| 4506 | return true; |
| 4507 | } |
| 4508 | |
| 4509 | /* Demangle a class name. */ |
| 4510 | |
| 4511 | static boolean |
| 4512 | stab_demangle_class (minfo, pp, pstart) |
| 4513 | struct stab_demangle_info *minfo ATTRIBUTE_UNUSED; |
| 4514 | const char **pp; |
| 4515 | const char **pstart; |
| 4516 | { |
| 4517 | const char *orig; |
| 4518 | unsigned int n; |
| 4519 | |
| 4520 | orig = *pp; |
| 4521 | |
| 4522 | n = stab_demangle_count (pp); |
| 4523 | if (strlen (*pp) < n) |
| 4524 | { |
| 4525 | stab_bad_demangle (orig); |
| 4526 | return false; |
| 4527 | } |
| 4528 | |
| 4529 | if (pstart != NULL) |
| 4530 | *pstart = *pp; |
| 4531 | |
| 4532 | *pp += n; |
| 4533 | |
| 4534 | return true; |
| 4535 | } |
| 4536 | |
| 4537 | /* Demangle function arguments. If the pargs argument is not NULL, it |
| 4538 | is set to a NULL terminated array holding the arguments. */ |
| 4539 | |
| 4540 | static boolean |
| 4541 | stab_demangle_args (minfo, pp, pargs, pvarargs) |
| 4542 | struct stab_demangle_info *minfo; |
| 4543 | const char **pp; |
| 4544 | debug_type **pargs; |
| 4545 | boolean *pvarargs; |
| 4546 | { |
| 4547 | const char *orig; |
| 4548 | unsigned int alloc, count; |
| 4549 | |
| 4550 | orig = *pp; |
| 4551 | |
| 4552 | alloc = 10; |
| 4553 | if (pargs != NULL) |
| 4554 | { |
| 4555 | *pargs = (debug_type *) xmalloc (alloc * sizeof **pargs); |
| 4556 | *pvarargs = false; |
| 4557 | } |
| 4558 | count = 0; |
| 4559 | |
| 4560 | while (**pp != '_' && **pp != '\0' && **pp != 'e') |
| 4561 | { |
| 4562 | if (**pp == 'N' || **pp == 'T') |
| 4563 | { |
| 4564 | char temptype; |
| 4565 | unsigned int r, t; |
| 4566 | |
| 4567 | temptype = **pp; |
| 4568 | ++*pp; |
| 4569 | |
| 4570 | if (temptype == 'T') |
| 4571 | r = 1; |
| 4572 | else |
| 4573 | { |
| 4574 | if (! stab_demangle_get_count (pp, &r)) |
| 4575 | { |
| 4576 | stab_bad_demangle (orig); |
| 4577 | return false; |
| 4578 | } |
| 4579 | } |
| 4580 | |
| 4581 | if (! stab_demangle_get_count (pp, &t)) |
| 4582 | { |
| 4583 | stab_bad_demangle (orig); |
| 4584 | return false; |
| 4585 | } |
| 4586 | |
| 4587 | if (t >= minfo->typestring_count) |
| 4588 | { |
| 4589 | stab_bad_demangle (orig); |
| 4590 | return false; |
| 4591 | } |
| 4592 | while (r-- > 0) |
| 4593 | { |
| 4594 | const char *tem; |
| 4595 | |
| 4596 | tem = minfo->typestrings[t].typestring; |
| 4597 | if (! stab_demangle_arg (minfo, &tem, pargs, &count, &alloc)) |
| 4598 | return false; |
| 4599 | } |
| 4600 | } |
| 4601 | else |
| 4602 | { |
| 4603 | if (! stab_demangle_arg (minfo, pp, pargs, &count, &alloc)) |
| 4604 | return false; |
| 4605 | } |
| 4606 | } |
| 4607 | |
| 4608 | if (pargs != NULL) |
| 4609 | (*pargs)[count] = DEBUG_TYPE_NULL; |
| 4610 | |
| 4611 | if (**pp == 'e') |
| 4612 | { |
| 4613 | if (pargs != NULL) |
| 4614 | *pvarargs = true; |
| 4615 | ++*pp; |
| 4616 | } |
| 4617 | |
| 4618 | return true; |
| 4619 | } |
| 4620 | |
| 4621 | /* Demangle a single argument. */ |
| 4622 | |
| 4623 | static boolean |
| 4624 | stab_demangle_arg (minfo, pp, pargs, pcount, palloc) |
| 4625 | struct stab_demangle_info *minfo; |
| 4626 | const char **pp; |
| 4627 | debug_type **pargs; |
| 4628 | unsigned int *pcount; |
| 4629 | unsigned int *palloc; |
| 4630 | { |
| 4631 | const char *start; |
| 4632 | debug_type type; |
| 4633 | |
| 4634 | start = *pp; |
| 4635 | if (! stab_demangle_type (minfo, pp, |
| 4636 | pargs == NULL ? (debug_type *) NULL : &type) |
| 4637 | || ! stab_demangle_remember_type (minfo, start, *pp - start)) |
| 4638 | return false; |
| 4639 | |
| 4640 | if (pargs != NULL) |
| 4641 | { |
| 4642 | if (type == DEBUG_TYPE_NULL) |
| 4643 | return false; |
| 4644 | |
| 4645 | if (*pcount + 1 >= *palloc) |
| 4646 | { |
| 4647 | *palloc += 10; |
| 4648 | *pargs = ((debug_type *) |
| 4649 | xrealloc (*pargs, *palloc * sizeof **pargs)); |
| 4650 | } |
| 4651 | (*pargs)[*pcount] = type; |
| 4652 | ++*pcount; |
| 4653 | } |
| 4654 | |
| 4655 | return true; |
| 4656 | } |
| 4657 | |
| 4658 | /* Demangle a type. If the ptype argument is not NULL, *ptype is set |
| 4659 | to the newly allocated type. */ |
| 4660 | |
| 4661 | static boolean |
| 4662 | stab_demangle_type (minfo, pp, ptype) |
| 4663 | struct stab_demangle_info *minfo; |
| 4664 | const char **pp; |
| 4665 | debug_type *ptype; |
| 4666 | { |
| 4667 | const char *orig; |
| 4668 | |
| 4669 | orig = *pp; |
| 4670 | |
| 4671 | switch (**pp) |
| 4672 | { |
| 4673 | case 'P': |
| 4674 | case 'p': |
| 4675 | /* A pointer type. */ |
| 4676 | ++*pp; |
| 4677 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4678 | return false; |
| 4679 | if (ptype != NULL) |
| 4680 | *ptype = debug_make_pointer_type (minfo->dhandle, *ptype); |
| 4681 | break; |
| 4682 | |
| 4683 | case 'R': |
| 4684 | /* A reference type. */ |
| 4685 | ++*pp; |
| 4686 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4687 | return false; |
| 4688 | if (ptype != NULL) |
| 4689 | *ptype = debug_make_reference_type (minfo->dhandle, *ptype); |
| 4690 | break; |
| 4691 | |
| 4692 | case 'A': |
| 4693 | /* An array. */ |
| 4694 | { |
| 4695 | unsigned long high; |
| 4696 | |
| 4697 | ++*pp; |
| 4698 | high = 0; |
| 4699 | while (**pp != '\0' && **pp != '_') |
| 4700 | { |
| 4701 | if (! ISDIGIT (**pp)) |
| 4702 | { |
| 4703 | stab_bad_demangle (orig); |
| 4704 | return false; |
| 4705 | } |
| 4706 | high *= 10; |
| 4707 | high += **pp - '0'; |
| 4708 | ++*pp; |
| 4709 | } |
| 4710 | if (**pp != '_') |
| 4711 | { |
| 4712 | stab_bad_demangle (orig); |
| 4713 | return false; |
| 4714 | } |
| 4715 | ++*pp; |
| 4716 | |
| 4717 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4718 | return false; |
| 4719 | if (ptype != NULL) |
| 4720 | { |
| 4721 | debug_type int_type; |
| 4722 | |
| 4723 | int_type = debug_find_named_type (minfo->dhandle, "int"); |
| 4724 | if (int_type == NULL) |
| 4725 | int_type = debug_make_int_type (minfo->dhandle, 4, false); |
| 4726 | *ptype = debug_make_array_type (minfo->dhandle, *ptype, int_type, |
| 4727 | 0, high, false); |
| 4728 | } |
| 4729 | } |
| 4730 | break; |
| 4731 | |
| 4732 | case 'T': |
| 4733 | /* A back reference to a remembered type. */ |
| 4734 | { |
| 4735 | unsigned int i; |
| 4736 | const char *p; |
| 4737 | |
| 4738 | ++*pp; |
| 4739 | if (! stab_demangle_get_count (pp, &i)) |
| 4740 | { |
| 4741 | stab_bad_demangle (orig); |
| 4742 | return false; |
| 4743 | } |
| 4744 | if (i >= minfo->typestring_count) |
| 4745 | { |
| 4746 | stab_bad_demangle (orig); |
| 4747 | return false; |
| 4748 | } |
| 4749 | p = minfo->typestrings[i].typestring; |
| 4750 | if (! stab_demangle_type (minfo, &p, ptype)) |
| 4751 | return false; |
| 4752 | } |
| 4753 | break; |
| 4754 | |
| 4755 | case 'F': |
| 4756 | /* A function. */ |
| 4757 | { |
| 4758 | debug_type *args; |
| 4759 | boolean varargs; |
| 4760 | |
| 4761 | ++*pp; |
| 4762 | if (! stab_demangle_args (minfo, pp, |
| 4763 | (ptype == NULL |
| 4764 | ? (debug_type **) NULL |
| 4765 | : &args), |
| 4766 | (ptype == NULL |
| 4767 | ? (boolean *) NULL |
| 4768 | : &varargs))) |
| 4769 | return false; |
| 4770 | if (**pp != '_') |
| 4771 | { |
| 4772 | /* cplus_demangle will accept a function without a return |
| 4773 | type, but I don't know when that will happen, or what |
| 4774 | to do if it does. */ |
| 4775 | stab_bad_demangle (orig); |
| 4776 | return false; |
| 4777 | } |
| 4778 | ++*pp; |
| 4779 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4780 | return false; |
| 4781 | if (ptype != NULL) |
| 4782 | *ptype = debug_make_function_type (minfo->dhandle, *ptype, args, |
| 4783 | varargs); |
| 4784 | |
| 4785 | } |
| 4786 | break; |
| 4787 | |
| 4788 | case 'M': |
| 4789 | case 'O': |
| 4790 | { |
| 4791 | boolean memberp, constp, volatilep; |
| 4792 | debug_type class_type = DEBUG_TYPE_NULL; |
| 4793 | debug_type *args; |
| 4794 | boolean varargs; |
| 4795 | unsigned int n; |
| 4796 | const char *name; |
| 4797 | |
| 4798 | memberp = **pp == 'M'; |
| 4799 | constp = false; |
| 4800 | volatilep = false; |
| 4801 | args = NULL; |
| 4802 | varargs = false; |
| 4803 | |
| 4804 | ++*pp; |
| 4805 | if (ISDIGIT (**pp)) |
| 4806 | { |
| 4807 | n = stab_demangle_count (pp); |
| 4808 | if (strlen (*pp) < n) |
| 4809 | { |
| 4810 | stab_bad_demangle (orig); |
| 4811 | return false; |
| 4812 | } |
| 4813 | name = *pp; |
| 4814 | *pp += n; |
| 4815 | |
| 4816 | if (ptype != NULL) |
| 4817 | { |
| 4818 | class_type = stab_find_tagged_type (minfo->dhandle, |
| 4819 | minfo->info, |
| 4820 | name, (int) n, |
| 4821 | DEBUG_KIND_CLASS); |
| 4822 | if (class_type == DEBUG_TYPE_NULL) |
| 4823 | return false; |
| 4824 | } |
| 4825 | } |
| 4826 | else if (**pp == 'Q') |
| 4827 | { |
| 4828 | if (! stab_demangle_qualified (minfo, pp, |
| 4829 | (ptype == NULL |
| 4830 | ? (debug_type *) NULL |
| 4831 | : &class_type))) |
| 4832 | return false; |
| 4833 | } |
| 4834 | else |
| 4835 | { |
| 4836 | stab_bad_demangle (orig); |
| 4837 | return false; |
| 4838 | } |
| 4839 | |
| 4840 | if (memberp) |
| 4841 | { |
| 4842 | if (**pp == 'C') |
| 4843 | { |
| 4844 | constp = true; |
| 4845 | ++*pp; |
| 4846 | } |
| 4847 | else if (**pp == 'V') |
| 4848 | { |
| 4849 | volatilep = true; |
| 4850 | ++*pp; |
| 4851 | } |
| 4852 | if (**pp != 'F') |
| 4853 | { |
| 4854 | stab_bad_demangle (orig); |
| 4855 | return false; |
| 4856 | } |
| 4857 | ++*pp; |
| 4858 | if (! stab_demangle_args (minfo, pp, |
| 4859 | (ptype == NULL |
| 4860 | ? (debug_type **) NULL |
| 4861 | : &args), |
| 4862 | (ptype == NULL |
| 4863 | ? (boolean *) NULL |
| 4864 | : &varargs))) |
| 4865 | return false; |
| 4866 | } |
| 4867 | |
| 4868 | if (**pp != '_') |
| 4869 | { |
| 4870 | stab_bad_demangle (orig); |
| 4871 | return false; |
| 4872 | } |
| 4873 | ++*pp; |
| 4874 | |
| 4875 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4876 | return false; |
| 4877 | |
| 4878 | if (ptype != NULL) |
| 4879 | { |
| 4880 | if (! memberp) |
| 4881 | *ptype = debug_make_offset_type (minfo->dhandle, class_type, |
| 4882 | *ptype); |
| 4883 | else |
| 4884 | { |
| 4885 | /* FIXME: We have no way to record constp or |
| 4886 | volatilep. */ |
| 4887 | *ptype = debug_make_method_type (minfo->dhandle, *ptype, |
| 4888 | class_type, args, varargs); |
| 4889 | } |
| 4890 | } |
| 4891 | } |
| 4892 | break; |
| 4893 | |
| 4894 | case 'G': |
| 4895 | ++*pp; |
| 4896 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4897 | return false; |
| 4898 | break; |
| 4899 | |
| 4900 | case 'C': |
| 4901 | ++*pp; |
| 4902 | if (! stab_demangle_type (minfo, pp, ptype)) |
| 4903 | return false; |
| 4904 | if (ptype != NULL) |
| 4905 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); |
| 4906 | break; |
| 4907 | |
| 4908 | case 'Q': |
| 4909 | { |
| 4910 | const char *hold; |
| 4911 | |
| 4912 | hold = *pp; |
| 4913 | if (! stab_demangle_qualified (minfo, pp, ptype)) |
| 4914 | return false; |
| 4915 | } |
| 4916 | break; |
| 4917 | |
| 4918 | default: |
| 4919 | if (! stab_demangle_fund_type (minfo, pp, ptype)) |
| 4920 | return false; |
| 4921 | break; |
| 4922 | } |
| 4923 | |
| 4924 | return true; |
| 4925 | } |
| 4926 | |
| 4927 | /* Demangle a fundamental type. If the ptype argument is not NULL, |
| 4928 | *ptype is set to the newly allocated type. */ |
| 4929 | |
| 4930 | static boolean |
| 4931 | stab_demangle_fund_type (minfo, pp, ptype) |
| 4932 | struct stab_demangle_info *minfo; |
| 4933 | const char **pp; |
| 4934 | debug_type *ptype; |
| 4935 | { |
| 4936 | const char *orig; |
| 4937 | boolean constp, volatilep, unsignedp, signedp; |
| 4938 | boolean done; |
| 4939 | |
| 4940 | orig = *pp; |
| 4941 | |
| 4942 | constp = false; |
| 4943 | volatilep = false; |
| 4944 | unsignedp = false; |
| 4945 | signedp = false; |
| 4946 | |
| 4947 | done = false; |
| 4948 | while (! done) |
| 4949 | { |
| 4950 | switch (**pp) |
| 4951 | { |
| 4952 | case 'C': |
| 4953 | constp = true; |
| 4954 | ++*pp; |
| 4955 | break; |
| 4956 | |
| 4957 | case 'U': |
| 4958 | unsignedp = true; |
| 4959 | ++*pp; |
| 4960 | break; |
| 4961 | |
| 4962 | case 'S': |
| 4963 | signedp = true; |
| 4964 | ++*pp; |
| 4965 | break; |
| 4966 | |
| 4967 | case 'V': |
| 4968 | volatilep = true; |
| 4969 | ++*pp; |
| 4970 | break; |
| 4971 | |
| 4972 | default: |
| 4973 | done = true; |
| 4974 | break; |
| 4975 | } |
| 4976 | } |
| 4977 | |
| 4978 | switch (**pp) |
| 4979 | { |
| 4980 | case '\0': |
| 4981 | case '_': |
| 4982 | /* cplus_demangle permits this, but I don't know what it means. */ |
| 4983 | stab_bad_demangle (orig); |
| 4984 | break; |
| 4985 | |
| 4986 | case 'v': /* void */ |
| 4987 | if (ptype != NULL) |
| 4988 | { |
| 4989 | *ptype = debug_find_named_type (minfo->dhandle, "void"); |
| 4990 | if (*ptype == DEBUG_TYPE_NULL) |
| 4991 | *ptype = debug_make_void_type (minfo->dhandle); |
| 4992 | } |
| 4993 | ++*pp; |
| 4994 | break; |
| 4995 | |
| 4996 | case 'x': /* long long */ |
| 4997 | if (ptype != NULL) |
| 4998 | { |
| 4999 | *ptype = debug_find_named_type (minfo->dhandle, |
| 5000 | (unsignedp |
| 5001 | ? "long long unsigned int" |
| 5002 | : "long long int")); |
| 5003 | if (*ptype == DEBUG_TYPE_NULL) |
| 5004 | *ptype = debug_make_int_type (minfo->dhandle, 8, unsignedp); |
| 5005 | } |
| 5006 | ++*pp; |
| 5007 | break; |
| 5008 | |
| 5009 | case 'l': /* long */ |
| 5010 | if (ptype != NULL) |
| 5011 | { |
| 5012 | *ptype = debug_find_named_type (minfo->dhandle, |
| 5013 | (unsignedp |
| 5014 | ? "long unsigned int" |
| 5015 | : "long int")); |
| 5016 | if (*ptype == DEBUG_TYPE_NULL) |
| 5017 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); |
| 5018 | } |
| 5019 | ++*pp; |
| 5020 | break; |
| 5021 | |
| 5022 | case 'i': /* int */ |
| 5023 | if (ptype != NULL) |
| 5024 | { |
| 5025 | *ptype = debug_find_named_type (minfo->dhandle, |
| 5026 | (unsignedp |
| 5027 | ? "unsigned int" |
| 5028 | : "int")); |
| 5029 | if (*ptype == DEBUG_TYPE_NULL) |
| 5030 | *ptype = debug_make_int_type (minfo->dhandle, 4, unsignedp); |
| 5031 | } |
| 5032 | ++*pp; |
| 5033 | break; |
| 5034 | |
| 5035 | case 's': /* short */ |
| 5036 | if (ptype != NULL) |
| 5037 | { |
| 5038 | *ptype = debug_find_named_type (minfo->dhandle, |
| 5039 | (unsignedp |
| 5040 | ? "short unsigned int" |
| 5041 | : "short int")); |
| 5042 | if (*ptype == DEBUG_TYPE_NULL) |
| 5043 | *ptype = debug_make_int_type (minfo->dhandle, 2, unsignedp); |
| 5044 | } |
| 5045 | ++*pp; |
| 5046 | break; |
| 5047 | |
| 5048 | case 'b': /* bool */ |
| 5049 | if (ptype != NULL) |
| 5050 | { |
| 5051 | *ptype = debug_find_named_type (minfo->dhandle, "bool"); |
| 5052 | if (*ptype == DEBUG_TYPE_NULL) |
| 5053 | *ptype = debug_make_bool_type (minfo->dhandle, 4); |
| 5054 | } |
| 5055 | ++*pp; |
| 5056 | break; |
| 5057 | |
| 5058 | case 'c': /* char */ |
| 5059 | if (ptype != NULL) |
| 5060 | { |
| 5061 | *ptype = debug_find_named_type (minfo->dhandle, |
| 5062 | (unsignedp |
| 5063 | ? "unsigned char" |
| 5064 | : (signedp |
| 5065 | ? "signed char" |
| 5066 | : "char"))); |
| 5067 | if (*ptype == DEBUG_TYPE_NULL) |
| 5068 | *ptype = debug_make_int_type (minfo->dhandle, 1, unsignedp); |
| 5069 | } |
| 5070 | ++*pp; |
| 5071 | break; |
| 5072 | |
| 5073 | case 'w': /* wchar_t */ |
| 5074 | if (ptype != NULL) |
| 5075 | { |
| 5076 | *ptype = debug_find_named_type (minfo->dhandle, "__wchar_t"); |
| 5077 | if (*ptype == DEBUG_TYPE_NULL) |
| 5078 | *ptype = debug_make_int_type (minfo->dhandle, 2, true); |
| 5079 | } |
| 5080 | ++*pp; |
| 5081 | break; |
| 5082 | |
| 5083 | case 'r': /* long double */ |
| 5084 | if (ptype != NULL) |
| 5085 | { |
| 5086 | *ptype = debug_find_named_type (minfo->dhandle, "long double"); |
| 5087 | if (*ptype == DEBUG_TYPE_NULL) |
| 5088 | *ptype = debug_make_float_type (minfo->dhandle, 8); |
| 5089 | } |
| 5090 | ++*pp; |
| 5091 | break; |
| 5092 | |
| 5093 | case 'd': /* double */ |
| 5094 | if (ptype != NULL) |
| 5095 | { |
| 5096 | *ptype = debug_find_named_type (minfo->dhandle, "double"); |
| 5097 | if (*ptype == DEBUG_TYPE_NULL) |
| 5098 | *ptype = debug_make_float_type (minfo->dhandle, 8); |
| 5099 | } |
| 5100 | ++*pp; |
| 5101 | break; |
| 5102 | |
| 5103 | case 'f': /* float */ |
| 5104 | if (ptype != NULL) |
| 5105 | { |
| 5106 | *ptype = debug_find_named_type (minfo->dhandle, "float"); |
| 5107 | if (*ptype == DEBUG_TYPE_NULL) |
| 5108 | *ptype = debug_make_float_type (minfo->dhandle, 4); |
| 5109 | } |
| 5110 | ++*pp; |
| 5111 | break; |
| 5112 | |
| 5113 | case 'G': |
| 5114 | ++*pp; |
| 5115 | if (! ISDIGIT (**pp)) |
| 5116 | { |
| 5117 | stab_bad_demangle (orig); |
| 5118 | return false; |
| 5119 | } |
| 5120 | /* Fall through. */ |
| 5121 | case '0': case '1': case '2': case '3': case '4': |
| 5122 | case '5': case '6': case '7': case '8': case '9': |
| 5123 | { |
| 5124 | const char *hold; |
| 5125 | |
| 5126 | if (! stab_demangle_class (minfo, pp, &hold)) |
| 5127 | return false; |
| 5128 | if (ptype != NULL) |
| 5129 | { |
| 5130 | char *name; |
| 5131 | |
| 5132 | name = savestring (hold, *pp - hold); |
| 5133 | *ptype = debug_find_named_type (minfo->dhandle, name); |
| 5134 | free (name); |
| 5135 | if (*ptype == DEBUG_TYPE_NULL) |
| 5136 | { |
| 5137 | /* FIXME: It is probably incorrect to assume that |
| 5138 | undefined types are tagged types. */ |
| 5139 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, |
| 5140 | hold, *pp - hold, |
| 5141 | DEBUG_KIND_ILLEGAL); |
| 5142 | if (*ptype == DEBUG_TYPE_NULL) |
| 5143 | return false; |
| 5144 | } |
| 5145 | } |
| 5146 | } |
| 5147 | break; |
| 5148 | |
| 5149 | case 't': |
| 5150 | { |
| 5151 | char *name; |
| 5152 | |
| 5153 | if (! stab_demangle_template (minfo, pp, |
| 5154 | ptype != NULL ? &name : NULL)) |
| 5155 | return false; |
| 5156 | if (ptype != NULL) |
| 5157 | { |
| 5158 | *ptype = stab_find_tagged_type (minfo->dhandle, minfo->info, |
| 5159 | name, strlen (name), |
| 5160 | DEBUG_KIND_CLASS); |
| 5161 | free (name); |
| 5162 | if (*ptype == DEBUG_TYPE_NULL) |
| 5163 | return false; |
| 5164 | } |
| 5165 | } |
| 5166 | break; |
| 5167 | |
| 5168 | default: |
| 5169 | stab_bad_demangle (orig); |
| 5170 | return false; |
| 5171 | } |
| 5172 | |
| 5173 | if (ptype != NULL) |
| 5174 | { |
| 5175 | if (constp) |
| 5176 | *ptype = debug_make_const_type (minfo->dhandle, *ptype); |
| 5177 | if (volatilep) |
| 5178 | *ptype = debug_make_volatile_type (minfo->dhandle, *ptype); |
| 5179 | } |
| 5180 | |
| 5181 | return true; |
| 5182 | } |
| 5183 | |
| 5184 | /* Remember a type string in a demangled string. */ |
| 5185 | |
| 5186 | static boolean |
| 5187 | stab_demangle_remember_type (minfo, p, len) |
| 5188 | struct stab_demangle_info *minfo; |
| 5189 | const char *p; |
| 5190 | int len; |
| 5191 | { |
| 5192 | if (minfo->typestring_count >= minfo->typestring_alloc) |
| 5193 | { |
| 5194 | minfo->typestring_alloc += 10; |
| 5195 | minfo->typestrings = ((struct stab_demangle_typestring *) |
| 5196 | xrealloc (minfo->typestrings, |
| 5197 | (minfo->typestring_alloc |
| 5198 | * sizeof *minfo->typestrings))); |
| 5199 | } |
| 5200 | |
| 5201 | minfo->typestrings[minfo->typestring_count].typestring = p; |
| 5202 | minfo->typestrings[minfo->typestring_count].len = (unsigned int) len; |
| 5203 | ++minfo->typestring_count; |
| 5204 | |
| 5205 | return true; |
| 5206 | } |