| 1 | /* Partial symbol tables. |
| 2 | |
| 3 | Copyright (C) 2009-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "symtab.h" |
| 22 | #include "objfiles.h" |
| 23 | #include "psympriv.h" |
| 24 | #include "block.h" |
| 25 | #include "filenames.h" |
| 26 | #include "source.h" |
| 27 | #include "addrmap.h" |
| 28 | #include "gdbtypes.h" |
| 29 | #include "bcache.h" |
| 30 | #include "ui-out.h" |
| 31 | #include "command.h" |
| 32 | #include "readline/readline.h" |
| 33 | #include "gdb_regex.h" |
| 34 | #include "dictionary.h" |
| 35 | #include "language.h" |
| 36 | #include "cp-support.h" |
| 37 | #include "gdbcmd.h" |
| 38 | #include <algorithm> |
| 39 | #include <set> |
| 40 | |
| 41 | struct psymbol_bcache |
| 42 | { |
| 43 | struct bcache *bcache; |
| 44 | }; |
| 45 | |
| 46 | static struct partial_symbol *match_partial_symbol (struct objfile *, |
| 47 | struct partial_symtab *, |
| 48 | int, |
| 49 | const char *, domain_enum, |
| 50 | symbol_name_match_type, |
| 51 | symbol_compare_ftype *); |
| 52 | |
| 53 | static struct partial_symbol *lookup_partial_symbol (struct objfile *, |
| 54 | struct partial_symtab *, |
| 55 | const char *, int, |
| 56 | domain_enum); |
| 57 | |
| 58 | static const char *psymtab_to_fullname (struct partial_symtab *ps); |
| 59 | |
| 60 | static struct partial_symbol *find_pc_sect_psymbol (struct objfile *, |
| 61 | struct partial_symtab *, |
| 62 | CORE_ADDR, |
| 63 | struct obj_section *); |
| 64 | |
| 65 | static struct compunit_symtab *psymtab_to_symtab (struct objfile *objfile, |
| 66 | struct partial_symtab *pst); |
| 67 | |
| 68 | /* See psymtab.h. */ |
| 69 | |
| 70 | objfile_psymtabs |
| 71 | require_partial_symbols (struct objfile *objfile, int verbose) |
| 72 | { |
| 73 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0) |
| 74 | { |
| 75 | objfile->flags |= OBJF_PSYMTABS_READ; |
| 76 | |
| 77 | if (objfile->sf->sym_read_psymbols) |
| 78 | { |
| 79 | if (verbose) |
| 80 | printf_filtered (_("Reading symbols from %s...\n"), |
| 81 | objfile_name (objfile)); |
| 82 | (*objfile->sf->sym_read_psymbols) (objfile); |
| 83 | |
| 84 | /* Partial symbols list are not expected to changed after this |
| 85 | point. */ |
| 86 | objfile->global_psymbols.shrink_to_fit (); |
| 87 | objfile->static_psymbols.shrink_to_fit (); |
| 88 | |
| 89 | if (verbose && !objfile_has_symbols (objfile)) |
| 90 | printf_filtered (_("(No debugging symbols found in %s)\n"), |
| 91 | objfile_name (objfile)); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | return objfile_psymtabs (objfile); |
| 96 | } |
| 97 | |
| 98 | /* Helper function for psym_map_symtabs_matching_filename that |
| 99 | expands the symtabs and calls the iterator. */ |
| 100 | |
| 101 | static bool |
| 102 | partial_map_expand_apply (struct objfile *objfile, |
| 103 | const char *name, |
| 104 | const char *real_path, |
| 105 | struct partial_symtab *pst, |
| 106 | gdb::function_view<bool (symtab *)> callback) |
| 107 | { |
| 108 | struct compunit_symtab *last_made = objfile->compunit_symtabs; |
| 109 | |
| 110 | /* Shared psymtabs should never be seen here. Instead they should |
| 111 | be handled properly by the caller. */ |
| 112 | gdb_assert (pst->user == NULL); |
| 113 | |
| 114 | /* Don't visit already-expanded psymtabs. */ |
| 115 | if (pst->readin) |
| 116 | return 0; |
| 117 | |
| 118 | /* This may expand more than one symtab, and we want to iterate over |
| 119 | all of them. */ |
| 120 | psymtab_to_symtab (objfile, pst); |
| 121 | |
| 122 | return iterate_over_some_symtabs (name, real_path, objfile->compunit_symtabs, |
| 123 | last_made, callback); |
| 124 | } |
| 125 | |
| 126 | /* Psymtab version of map_symtabs_matching_filename. See its definition in |
| 127 | the definition of quick_symbol_functions in symfile.h. */ |
| 128 | |
| 129 | static bool |
| 130 | psym_map_symtabs_matching_filename |
| 131 | (struct objfile *objfile, |
| 132 | const char *name, |
| 133 | const char *real_path, |
| 134 | gdb::function_view<bool (symtab *)> callback) |
| 135 | { |
| 136 | const char *name_basename = lbasename (name); |
| 137 | |
| 138 | for (partial_symtab *pst : require_partial_symbols (objfile, 1)) |
| 139 | { |
| 140 | /* We can skip shared psymtabs here, because any file name will be |
| 141 | attached to the unshared psymtab. */ |
| 142 | if (pst->user != NULL) |
| 143 | continue; |
| 144 | |
| 145 | /* Anonymous psymtabs don't have a file name. */ |
| 146 | if (pst->anonymous) |
| 147 | continue; |
| 148 | |
| 149 | if (compare_filenames_for_search (pst->filename, name)) |
| 150 | { |
| 151 | if (partial_map_expand_apply (objfile, name, real_path, |
| 152 | pst, callback)) |
| 153 | return true; |
| 154 | continue; |
| 155 | } |
| 156 | |
| 157 | /* Before we invoke realpath, which can get expensive when many |
| 158 | files are involved, do a quick comparison of the basenames. */ |
| 159 | if (! basenames_may_differ |
| 160 | && FILENAME_CMP (name_basename, lbasename (pst->filename)) != 0) |
| 161 | continue; |
| 162 | |
| 163 | if (compare_filenames_for_search (psymtab_to_fullname (pst), name)) |
| 164 | { |
| 165 | if (partial_map_expand_apply (objfile, name, real_path, |
| 166 | pst, callback)) |
| 167 | return true; |
| 168 | continue; |
| 169 | } |
| 170 | |
| 171 | /* If the user gave us an absolute path, try to find the file in |
| 172 | this symtab and use its absolute path. */ |
| 173 | if (real_path != NULL) |
| 174 | { |
| 175 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); |
| 176 | gdb_assert (IS_ABSOLUTE_PATH (name)); |
| 177 | if (filename_cmp (psymtab_to_fullname (pst), real_path) == 0) |
| 178 | { |
| 179 | if (partial_map_expand_apply (objfile, name, real_path, |
| 180 | pst, callback)) |
| 181 | return true; |
| 182 | continue; |
| 183 | } |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | return false; |
| 188 | } |
| 189 | |
| 190 | /* Find which partial symtab contains PC and SECTION starting at psymtab PST. |
| 191 | We may find a different psymtab than PST. See FIND_PC_SECT_PSYMTAB. */ |
| 192 | |
| 193 | static struct partial_symtab * |
| 194 | find_pc_sect_psymtab_closer (struct objfile *objfile, |
| 195 | CORE_ADDR pc, struct obj_section *section, |
| 196 | struct partial_symtab *pst, |
| 197 | struct bound_minimal_symbol msymbol) |
| 198 | { |
| 199 | struct partial_symtab *tpst; |
| 200 | struct partial_symtab *best_pst = pst; |
| 201 | CORE_ADDR best_addr = pst->text_low (objfile); |
| 202 | |
| 203 | gdb_assert (!pst->psymtabs_addrmap_supported); |
| 204 | |
| 205 | /* An objfile that has its functions reordered might have |
| 206 | many partial symbol tables containing the PC, but |
| 207 | we want the partial symbol table that contains the |
| 208 | function containing the PC. */ |
| 209 | if (!(objfile->flags & OBJF_REORDERED) |
| 210 | && section == NULL) /* Can't validate section this way. */ |
| 211 | return pst; |
| 212 | |
| 213 | if (msymbol.minsym == NULL) |
| 214 | return pst; |
| 215 | |
| 216 | /* The code range of partial symtabs sometimes overlap, so, in |
| 217 | the loop below, we need to check all partial symtabs and |
| 218 | find the one that fits better for the given PC address. We |
| 219 | select the partial symtab that contains a symbol whose |
| 220 | address is closest to the PC address. By closest we mean |
| 221 | that find_pc_sect_symbol returns the symbol with address |
| 222 | that is closest and still less than the given PC. */ |
| 223 | for (tpst = pst; tpst != NULL; tpst = tpst->next) |
| 224 | { |
| 225 | if (pc >= tpst->text_low (objfile) && pc < tpst->text_high (objfile)) |
| 226 | { |
| 227 | struct partial_symbol *p; |
| 228 | CORE_ADDR this_addr; |
| 229 | |
| 230 | /* NOTE: This assumes that every psymbol has a |
| 231 | corresponding msymbol, which is not necessarily |
| 232 | true; the debug info might be much richer than the |
| 233 | object's symbol table. */ |
| 234 | p = find_pc_sect_psymbol (objfile, tpst, pc, section); |
| 235 | if (p != NULL |
| 236 | && (p->address (objfile) == BMSYMBOL_VALUE_ADDRESS (msymbol))) |
| 237 | return tpst; |
| 238 | |
| 239 | /* Also accept the textlow value of a psymtab as a |
| 240 | "symbol", to provide some support for partial |
| 241 | symbol tables with line information but no debug |
| 242 | symbols (e.g. those produced by an assembler). */ |
| 243 | if (p != NULL) |
| 244 | this_addr = p->address (objfile); |
| 245 | else |
| 246 | this_addr = tpst->text_low (objfile); |
| 247 | |
| 248 | /* Check whether it is closer than our current |
| 249 | BEST_ADDR. Since this symbol address is |
| 250 | necessarily lower or equal to PC, the symbol closer |
| 251 | to PC is the symbol which address is the highest. |
| 252 | This way we return the psymtab which contains such |
| 253 | best match symbol. This can help in cases where the |
| 254 | symbol information/debuginfo is not complete, like |
| 255 | for instance on IRIX6 with gcc, where no debug info |
| 256 | is emitted for statics. (See also the nodebug.exp |
| 257 | testcase.) */ |
| 258 | if (this_addr > best_addr) |
| 259 | { |
| 260 | best_addr = this_addr; |
| 261 | best_pst = tpst; |
| 262 | } |
| 263 | } |
| 264 | } |
| 265 | return best_pst; |
| 266 | } |
| 267 | |
| 268 | /* Find which partial symtab contains PC and SECTION. Return NULL if |
| 269 | none. We return the psymtab that contains a symbol whose address |
| 270 | exactly matches PC, or, if we cannot find an exact match, the |
| 271 | psymtab that contains a symbol whose address is closest to PC. */ |
| 272 | |
| 273 | static struct partial_symtab * |
| 274 | find_pc_sect_psymtab (struct objfile *objfile, CORE_ADDR pc, |
| 275 | struct obj_section *section, |
| 276 | struct bound_minimal_symbol msymbol) |
| 277 | { |
| 278 | CORE_ADDR baseaddr = ANOFFSET (objfile->section_offsets, |
| 279 | SECT_OFF_TEXT (objfile)); |
| 280 | |
| 281 | /* Try just the PSYMTABS_ADDRMAP mapping first as it has better granularity |
| 282 | than the later used TEXTLOW/TEXTHIGH one. */ |
| 283 | |
| 284 | if (objfile->psymtabs_addrmap != NULL) |
| 285 | { |
| 286 | struct partial_symtab *pst |
| 287 | = ((struct partial_symtab *) |
| 288 | addrmap_find (objfile->psymtabs_addrmap, pc - baseaddr)); |
| 289 | if (pst != NULL) |
| 290 | { |
| 291 | /* FIXME: addrmaps currently do not handle overlayed sections, |
| 292 | so fall back to the non-addrmap case if we're debugging |
| 293 | overlays and the addrmap returned the wrong section. */ |
| 294 | if (overlay_debugging && msymbol.minsym != NULL && section != NULL) |
| 295 | { |
| 296 | struct partial_symbol *p; |
| 297 | |
| 298 | /* NOTE: This assumes that every psymbol has a |
| 299 | corresponding msymbol, which is not necessarily |
| 300 | true; the debug info might be much richer than the |
| 301 | object's symbol table. */ |
| 302 | p = find_pc_sect_psymbol (objfile, pst, pc, section); |
| 303 | if (p == NULL |
| 304 | || (p->address (objfile) |
| 305 | != BMSYMBOL_VALUE_ADDRESS (msymbol))) |
| 306 | goto next; |
| 307 | } |
| 308 | |
| 309 | /* We do not try to call FIND_PC_SECT_PSYMTAB_CLOSER as |
| 310 | PSYMTABS_ADDRMAP we used has already the best 1-byte |
| 311 | granularity and FIND_PC_SECT_PSYMTAB_CLOSER may mislead us into |
| 312 | a worse chosen section due to the TEXTLOW/TEXTHIGH ranges |
| 313 | overlap. */ |
| 314 | |
| 315 | return pst; |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | next: |
| 320 | |
| 321 | /* Existing PSYMTABS_ADDRMAP mapping is present even for PARTIAL_SYMTABs |
| 322 | which still have no corresponding full SYMTABs read. But it is not |
| 323 | present for non-DWARF2 debug infos not supporting PSYMTABS_ADDRMAP in GDB |
| 324 | so far. */ |
| 325 | |
| 326 | /* Check even OBJFILE with non-zero PSYMTABS_ADDRMAP as only several of |
| 327 | its CUs may be missing in PSYMTABS_ADDRMAP as they may be varying |
| 328 | debug info type in single OBJFILE. */ |
| 329 | |
| 330 | for (partial_symtab *pst : require_partial_symbols (objfile, 1)) |
| 331 | if (!pst->psymtabs_addrmap_supported |
| 332 | && pc >= pst->text_low (objfile) && pc < pst->text_high (objfile)) |
| 333 | { |
| 334 | struct partial_symtab *best_pst; |
| 335 | |
| 336 | best_pst = find_pc_sect_psymtab_closer (objfile, pc, section, pst, |
| 337 | msymbol); |
| 338 | if (best_pst != NULL) |
| 339 | return best_pst; |
| 340 | } |
| 341 | |
| 342 | return NULL; |
| 343 | } |
| 344 | |
| 345 | /* Psymtab version of find_pc_sect_compunit_symtab. See its definition in |
| 346 | the definition of quick_symbol_functions in symfile.h. */ |
| 347 | |
| 348 | static struct compunit_symtab * |
| 349 | psym_find_pc_sect_compunit_symtab (struct objfile *objfile, |
| 350 | struct bound_minimal_symbol msymbol, |
| 351 | CORE_ADDR pc, |
| 352 | struct obj_section *section, |
| 353 | int warn_if_readin) |
| 354 | { |
| 355 | struct partial_symtab *ps = find_pc_sect_psymtab (objfile, pc, section, |
| 356 | msymbol); |
| 357 | if (ps != NULL) |
| 358 | { |
| 359 | if (warn_if_readin && ps->readin) |
| 360 | /* Might want to error() here (in case symtab is corrupt and |
| 361 | will cause a core dump), but maybe we can successfully |
| 362 | continue, so let's not. */ |
| 363 | warning (_("\ |
| 364 | (Internal error: pc %s in read in psymtab, but not in symtab.)\n"), |
| 365 | paddress (get_objfile_arch (objfile), pc)); |
| 366 | psymtab_to_symtab (objfile, ps); |
| 367 | return ps->compunit_symtab; |
| 368 | } |
| 369 | return NULL; |
| 370 | } |
| 371 | |
| 372 | /* Find which partial symbol within a psymtab matches PC and SECTION. |
| 373 | Return NULL if none. */ |
| 374 | |
| 375 | static struct partial_symbol * |
| 376 | find_pc_sect_psymbol (struct objfile *objfile, |
| 377 | struct partial_symtab *psymtab, CORE_ADDR pc, |
| 378 | struct obj_section *section) |
| 379 | { |
| 380 | struct partial_symbol *best = NULL; |
| 381 | CORE_ADDR best_pc; |
| 382 | const CORE_ADDR textlow = psymtab->text_low (objfile); |
| 383 | |
| 384 | gdb_assert (psymtab != NULL); |
| 385 | |
| 386 | /* Cope with programs that start at address 0. */ |
| 387 | best_pc = (textlow != 0) ? textlow - 1 : 0; |
| 388 | |
| 389 | /* Search the global symbols as well as the static symbols, so that |
| 390 | find_pc_partial_function doesn't use a minimal symbol and thus |
| 391 | cache a bad endaddr. */ |
| 392 | for (int i = 0; i < psymtab->n_global_syms; i++) |
| 393 | { |
| 394 | partial_symbol *p = objfile->global_psymbols[psymtab->globals_offset + i]; |
| 395 | |
| 396 | if (p->domain == VAR_DOMAIN |
| 397 | && p->aclass == LOC_BLOCK |
| 398 | && pc >= p->address (objfile) |
| 399 | && (p->address (objfile) > best_pc |
| 400 | || (psymtab->text_low (objfile) == 0 |
| 401 | && best_pc == 0 && p->address (objfile) == 0))) |
| 402 | { |
| 403 | if (section != NULL) /* Match on a specific section. */ |
| 404 | { |
| 405 | if (!matching_obj_sections (p->obj_section (objfile), |
| 406 | section)) |
| 407 | continue; |
| 408 | } |
| 409 | best_pc = p->address (objfile); |
| 410 | best = p; |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | for (int i = 0; i < psymtab->n_static_syms; i++) |
| 415 | { |
| 416 | partial_symbol *p = objfile->static_psymbols[psymtab->statics_offset + i]; |
| 417 | |
| 418 | if (p->domain == VAR_DOMAIN |
| 419 | && p->aclass == LOC_BLOCK |
| 420 | && pc >= p->address (objfile) |
| 421 | && (p->address (objfile) > best_pc |
| 422 | || (psymtab->text_low (objfile) == 0 |
| 423 | && best_pc == 0 && p->address (objfile) == 0))) |
| 424 | { |
| 425 | if (section != NULL) /* Match on a specific section. */ |
| 426 | { |
| 427 | if (!matching_obj_sections (p->obj_section (objfile), |
| 428 | section)) |
| 429 | continue; |
| 430 | } |
| 431 | best_pc = p->address (objfile); |
| 432 | best = p; |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | return best; |
| 437 | } |
| 438 | |
| 439 | /* Psymtab version of lookup_symbol. See its definition in |
| 440 | the definition of quick_symbol_functions in symfile.h. */ |
| 441 | |
| 442 | static struct compunit_symtab * |
| 443 | psym_lookup_symbol (struct objfile *objfile, |
| 444 | int block_index, const char *name, |
| 445 | const domain_enum domain) |
| 446 | { |
| 447 | const int psymtab_index = (block_index == GLOBAL_BLOCK ? 1 : 0); |
| 448 | struct compunit_symtab *stab_best = NULL; |
| 449 | |
| 450 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
| 451 | |
| 452 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 453 | { |
| 454 | if (!ps->readin && lookup_partial_symbol (objfile, ps, name, |
| 455 | psymtab_index, domain)) |
| 456 | { |
| 457 | struct symbol *sym, *with_opaque = NULL; |
| 458 | struct compunit_symtab *stab = psymtab_to_symtab (objfile, ps); |
| 459 | /* Note: While psymtab_to_symtab can return NULL if the |
| 460 | partial symtab is empty, we can assume it won't here |
| 461 | because lookup_partial_symbol succeeded. */ |
| 462 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (stab); |
| 463 | struct block *block = BLOCKVECTOR_BLOCK (bv, block_index); |
| 464 | |
| 465 | sym = block_find_symbol (block, name, domain, |
| 466 | block_find_non_opaque_type_preferred, |
| 467 | &with_opaque); |
| 468 | |
| 469 | /* Some caution must be observed with overloaded functions |
| 470 | and methods, since the index will not contain any overload |
| 471 | information (but NAME might contain it). */ |
| 472 | |
| 473 | if (sym != NULL |
| 474 | && SYMBOL_MATCHES_SEARCH_NAME (sym, lookup_name)) |
| 475 | return stab; |
| 476 | if (with_opaque != NULL |
| 477 | && SYMBOL_MATCHES_SEARCH_NAME (with_opaque, lookup_name)) |
| 478 | stab_best = stab; |
| 479 | |
| 480 | /* Keep looking through other psymtabs. */ |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | return stab_best; |
| 485 | } |
| 486 | |
| 487 | /* Returns true if PSYM matches LOOKUP_NAME. */ |
| 488 | |
| 489 | static bool |
| 490 | psymbol_name_matches (partial_symbol *psym, |
| 491 | const lookup_name_info &lookup_name) |
| 492 | { |
| 493 | const language_defn *lang = language_def (psym->language); |
| 494 | symbol_name_matcher_ftype *name_match |
| 495 | = get_symbol_name_matcher (lang, lookup_name); |
| 496 | return name_match (symbol_search_name (psym), lookup_name, NULL); |
| 497 | } |
| 498 | |
| 499 | /* Look in PST for a symbol in DOMAIN whose name matches NAME. Search |
| 500 | the global block of PST if GLOBAL, and otherwise the static block. |
| 501 | MATCH is the comparison operation that returns true iff MATCH (s, |
| 502 | NAME), where s is a SYMBOL_SEARCH_NAME. If ORDERED_COMPARE is |
| 503 | non-null, the symbols in the block are assumed to be ordered |
| 504 | according to it (allowing binary search). It must be compatible |
| 505 | with MATCH. Returns the symbol, if found, and otherwise NULL. */ |
| 506 | |
| 507 | static struct partial_symbol * |
| 508 | match_partial_symbol (struct objfile *objfile, |
| 509 | struct partial_symtab *pst, int global, |
| 510 | const char *name, domain_enum domain, |
| 511 | symbol_name_match_type match_type, |
| 512 | symbol_compare_ftype *ordered_compare) |
| 513 | { |
| 514 | struct partial_symbol **start, **psym; |
| 515 | struct partial_symbol **top, **real_top, **bottom, **center; |
| 516 | int length = (global ? pst->n_global_syms : pst->n_static_syms); |
| 517 | int do_linear_search = 1; |
| 518 | |
| 519 | if (length == 0) |
| 520 | return NULL; |
| 521 | |
| 522 | lookup_name_info lookup_name (name, match_type); |
| 523 | |
| 524 | start = (global ? |
| 525 | &objfile->global_psymbols[pst->globals_offset] : |
| 526 | &objfile->static_psymbols[pst->statics_offset]); |
| 527 | |
| 528 | if (global && ordered_compare) /* Can use a binary search. */ |
| 529 | { |
| 530 | do_linear_search = 0; |
| 531 | |
| 532 | /* Binary search. This search is guaranteed to end with center |
| 533 | pointing at the earliest partial symbol whose name might be |
| 534 | correct. At that point *all* partial symbols with an |
| 535 | appropriate name will be checked against the correct |
| 536 | domain. */ |
| 537 | |
| 538 | bottom = start; |
| 539 | top = start + length - 1; |
| 540 | real_top = top; |
| 541 | while (top > bottom) |
| 542 | { |
| 543 | center = bottom + (top - bottom) / 2; |
| 544 | gdb_assert (center < top); |
| 545 | |
| 546 | enum language lang = (*center)->language; |
| 547 | const char *lang_ln |
| 548 | = lookup_name.language_lookup_name (lang).c_str (); |
| 549 | |
| 550 | if (ordered_compare (symbol_search_name (*center), lang_ln) >= 0) |
| 551 | top = center; |
| 552 | else |
| 553 | bottom = center + 1; |
| 554 | } |
| 555 | gdb_assert (top == bottom); |
| 556 | |
| 557 | while (top <= real_top |
| 558 | && psymbol_name_matches (*top, lookup_name)) |
| 559 | { |
| 560 | if (symbol_matches_domain ((*top)->language, |
| 561 | (*top)->domain, domain)) |
| 562 | return *top; |
| 563 | top++; |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | /* Can't use a binary search or else we found during the binary search that |
| 568 | we should also do a linear search. */ |
| 569 | |
| 570 | if (do_linear_search) |
| 571 | { |
| 572 | for (psym = start; psym < start + length; psym++) |
| 573 | { |
| 574 | if (symbol_matches_domain ((*psym)->language, |
| 575 | (*psym)->domain, domain) |
| 576 | && psymbol_name_matches (*psym, lookup_name)) |
| 577 | return *psym; |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | return NULL; |
| 582 | } |
| 583 | |
| 584 | /* Returns the name used to search psymtabs. Unlike symtabs, psymtabs do |
| 585 | not contain any method/function instance information (since this would |
| 586 | force reading type information while reading psymtabs). Therefore, |
| 587 | if NAME contains overload information, it must be stripped before searching |
| 588 | psymtabs. */ |
| 589 | |
| 590 | static gdb::unique_xmalloc_ptr<char> |
| 591 | psymtab_search_name (const char *name) |
| 592 | { |
| 593 | switch (current_language->la_language) |
| 594 | { |
| 595 | case language_cplus: |
| 596 | { |
| 597 | if (strchr (name, '(')) |
| 598 | { |
| 599 | gdb::unique_xmalloc_ptr<char> ret = cp_remove_params (name); |
| 600 | |
| 601 | if (ret) |
| 602 | return ret; |
| 603 | } |
| 604 | } |
| 605 | break; |
| 606 | |
| 607 | default: |
| 608 | break; |
| 609 | } |
| 610 | |
| 611 | return gdb::unique_xmalloc_ptr<char> (xstrdup (name)); |
| 612 | } |
| 613 | |
| 614 | /* Look, in partial_symtab PST, for symbol whose natural name is NAME. |
| 615 | Check the global symbols if GLOBAL, the static symbols if not. */ |
| 616 | |
| 617 | static struct partial_symbol * |
| 618 | lookup_partial_symbol (struct objfile *objfile, |
| 619 | struct partial_symtab *pst, const char *name, |
| 620 | int global, domain_enum domain) |
| 621 | { |
| 622 | struct partial_symbol **start, **psym; |
| 623 | struct partial_symbol **top, **real_top, **bottom, **center; |
| 624 | int length = (global ? pst->n_global_syms : pst->n_static_syms); |
| 625 | int do_linear_search = 1; |
| 626 | |
| 627 | if (length == 0) |
| 628 | return NULL; |
| 629 | |
| 630 | gdb::unique_xmalloc_ptr<char> search_name = psymtab_search_name (name); |
| 631 | |
| 632 | lookup_name_info lookup_name (search_name.get (), symbol_name_match_type::FULL); |
| 633 | |
| 634 | start = (global ? |
| 635 | &objfile->global_psymbols[pst->globals_offset] : |
| 636 | &objfile->static_psymbols[pst->statics_offset]); |
| 637 | |
| 638 | if (global) /* This means we can use a binary search. */ |
| 639 | { |
| 640 | do_linear_search = 0; |
| 641 | |
| 642 | /* Binary search. This search is guaranteed to end with center |
| 643 | pointing at the earliest partial symbol whose name might be |
| 644 | correct. At that point *all* partial symbols with an |
| 645 | appropriate name will be checked against the correct |
| 646 | domain. */ |
| 647 | |
| 648 | bottom = start; |
| 649 | top = start + length - 1; |
| 650 | real_top = top; |
| 651 | while (top > bottom) |
| 652 | { |
| 653 | center = bottom + (top - bottom) / 2; |
| 654 | if (!(center < top)) |
| 655 | internal_error (__FILE__, __LINE__, |
| 656 | _("failed internal consistency check")); |
| 657 | if (strcmp_iw_ordered (symbol_search_name (*center), |
| 658 | search_name.get ()) >= 0) |
| 659 | { |
| 660 | top = center; |
| 661 | } |
| 662 | else |
| 663 | { |
| 664 | bottom = center + 1; |
| 665 | } |
| 666 | } |
| 667 | if (!(top == bottom)) |
| 668 | internal_error (__FILE__, __LINE__, |
| 669 | _("failed internal consistency check")); |
| 670 | |
| 671 | /* For `case_sensitivity == case_sensitive_off' strcmp_iw_ordered will |
| 672 | search more exactly than what matches SYMBOL_MATCHES_SEARCH_NAME. */ |
| 673 | while (top >= start && symbol_matches_search_name (*top, lookup_name)) |
| 674 | top--; |
| 675 | |
| 676 | /* Fixup to have a symbol which matches SYMBOL_MATCHES_SEARCH_NAME. */ |
| 677 | top++; |
| 678 | |
| 679 | while (top <= real_top && symbol_matches_search_name (*top, lookup_name)) |
| 680 | { |
| 681 | if (symbol_matches_domain ((*top)->language, |
| 682 | (*top)->domain, domain)) |
| 683 | return *top; |
| 684 | top++; |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | /* Can't use a binary search or else we found during the binary search that |
| 689 | we should also do a linear search. */ |
| 690 | |
| 691 | if (do_linear_search) |
| 692 | { |
| 693 | for (psym = start; psym < start + length; psym++) |
| 694 | { |
| 695 | if (symbol_matches_domain ((*psym)->language, |
| 696 | (*psym)->domain, domain) |
| 697 | && symbol_matches_search_name (*psym, lookup_name)) |
| 698 | return *psym; |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | return NULL; |
| 703 | } |
| 704 | |
| 705 | /* Get the symbol table that corresponds to a partial_symtab. |
| 706 | This is fast after the first time you do it. |
| 707 | The result will be NULL if the primary symtab has no symbols, |
| 708 | which can happen. Otherwise the result is the primary symtab |
| 709 | that contains PST. */ |
| 710 | |
| 711 | static struct compunit_symtab * |
| 712 | psymtab_to_symtab (struct objfile *objfile, struct partial_symtab *pst) |
| 713 | { |
| 714 | /* If it is a shared psymtab, find an unshared psymtab that includes |
| 715 | it. Any such psymtab will do. */ |
| 716 | while (pst->user != NULL) |
| 717 | pst = pst->user; |
| 718 | |
| 719 | /* If it's been looked up before, return it. */ |
| 720 | if (pst->compunit_symtab) |
| 721 | return pst->compunit_symtab; |
| 722 | |
| 723 | /* If it has not yet been read in, read it. */ |
| 724 | if (!pst->readin) |
| 725 | { |
| 726 | scoped_restore decrementer = increment_reading_symtab (); |
| 727 | |
| 728 | (*pst->read_symtab) (pst, objfile); |
| 729 | } |
| 730 | |
| 731 | return pst->compunit_symtab; |
| 732 | } |
| 733 | |
| 734 | /* Psymtab version of find_last_source_symtab. See its definition in |
| 735 | the definition of quick_symbol_functions in symfile.h. */ |
| 736 | |
| 737 | static struct symtab * |
| 738 | psym_find_last_source_symtab (struct objfile *ofp) |
| 739 | { |
| 740 | struct partial_symtab *cs_pst = NULL; |
| 741 | |
| 742 | for (partial_symtab *ps : require_partial_symbols (ofp, 1)) |
| 743 | { |
| 744 | const char *name = ps->filename; |
| 745 | int len = strlen (name); |
| 746 | |
| 747 | if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 |
| 748 | || strcmp (name, "<<C++-namespaces>>") == 0))) |
| 749 | cs_pst = ps; |
| 750 | } |
| 751 | |
| 752 | if (cs_pst) |
| 753 | { |
| 754 | if (cs_pst->readin) |
| 755 | { |
| 756 | internal_error (__FILE__, __LINE__, |
| 757 | _("select_source_symtab: " |
| 758 | "readin pst found and no symtabs.")); |
| 759 | } |
| 760 | else |
| 761 | { |
| 762 | struct compunit_symtab *cust = psymtab_to_symtab (ofp, cs_pst); |
| 763 | |
| 764 | if (cust == NULL) |
| 765 | return NULL; |
| 766 | return compunit_primary_filetab (cust); |
| 767 | } |
| 768 | } |
| 769 | return NULL; |
| 770 | } |
| 771 | |
| 772 | /* Psymtab version of forget_cached_source_info. See its definition in |
| 773 | the definition of quick_symbol_functions in symfile.h. */ |
| 774 | |
| 775 | static void |
| 776 | psym_forget_cached_source_info (struct objfile *objfile) |
| 777 | { |
| 778 | for (partial_symtab *pst : require_partial_symbols (objfile, 1)) |
| 779 | { |
| 780 | if (pst->fullname != NULL) |
| 781 | { |
| 782 | xfree (pst->fullname); |
| 783 | pst->fullname = NULL; |
| 784 | } |
| 785 | } |
| 786 | } |
| 787 | |
| 788 | static void |
| 789 | print_partial_symbols (struct gdbarch *gdbarch, struct objfile *objfile, |
| 790 | struct partial_symbol **p, int count, const char *what, |
| 791 | struct ui_file *outfile) |
| 792 | { |
| 793 | fprintf_filtered (outfile, " %s partial symbols:\n", what); |
| 794 | while (count-- > 0) |
| 795 | { |
| 796 | QUIT; |
| 797 | fprintf_filtered (outfile, " `%s'", (*p)->name); |
| 798 | if (symbol_demangled_name (*p) != NULL) |
| 799 | { |
| 800 | fprintf_filtered (outfile, " `%s'", symbol_demangled_name (*p)); |
| 801 | } |
| 802 | fputs_filtered (", ", outfile); |
| 803 | switch ((*p)->domain) |
| 804 | { |
| 805 | case UNDEF_DOMAIN: |
| 806 | fputs_filtered ("undefined domain, ", outfile); |
| 807 | break; |
| 808 | case VAR_DOMAIN: |
| 809 | /* This is the usual thing -- don't print it. */ |
| 810 | break; |
| 811 | case STRUCT_DOMAIN: |
| 812 | fputs_filtered ("struct domain, ", outfile); |
| 813 | break; |
| 814 | case LABEL_DOMAIN: |
| 815 | fputs_filtered ("label domain, ", outfile); |
| 816 | break; |
| 817 | default: |
| 818 | fputs_filtered ("<invalid domain>, ", outfile); |
| 819 | break; |
| 820 | } |
| 821 | switch ((*p)->aclass) |
| 822 | { |
| 823 | case LOC_UNDEF: |
| 824 | fputs_filtered ("undefined", outfile); |
| 825 | break; |
| 826 | case LOC_CONST: |
| 827 | fputs_filtered ("constant int", outfile); |
| 828 | break; |
| 829 | case LOC_STATIC: |
| 830 | fputs_filtered ("static", outfile); |
| 831 | break; |
| 832 | case LOC_REGISTER: |
| 833 | fputs_filtered ("register", outfile); |
| 834 | break; |
| 835 | case LOC_ARG: |
| 836 | fputs_filtered ("pass by value", outfile); |
| 837 | break; |
| 838 | case LOC_REF_ARG: |
| 839 | fputs_filtered ("pass by reference", outfile); |
| 840 | break; |
| 841 | case LOC_REGPARM_ADDR: |
| 842 | fputs_filtered ("register address parameter", outfile); |
| 843 | break; |
| 844 | case LOC_LOCAL: |
| 845 | fputs_filtered ("stack parameter", outfile); |
| 846 | break; |
| 847 | case LOC_TYPEDEF: |
| 848 | fputs_filtered ("type", outfile); |
| 849 | break; |
| 850 | case LOC_LABEL: |
| 851 | fputs_filtered ("label", outfile); |
| 852 | break; |
| 853 | case LOC_BLOCK: |
| 854 | fputs_filtered ("function", outfile); |
| 855 | break; |
| 856 | case LOC_CONST_BYTES: |
| 857 | fputs_filtered ("constant bytes", outfile); |
| 858 | break; |
| 859 | case LOC_UNRESOLVED: |
| 860 | fputs_filtered ("unresolved", outfile); |
| 861 | break; |
| 862 | case LOC_OPTIMIZED_OUT: |
| 863 | fputs_filtered ("optimized out", outfile); |
| 864 | break; |
| 865 | case LOC_COMPUTED: |
| 866 | fputs_filtered ("computed at runtime", outfile); |
| 867 | break; |
| 868 | default: |
| 869 | fputs_filtered ("<invalid location>", outfile); |
| 870 | break; |
| 871 | } |
| 872 | fputs_filtered (", ", outfile); |
| 873 | fputs_filtered (paddress (gdbarch, (*p)->unrelocated_address ()), outfile); |
| 874 | fprintf_filtered (outfile, "\n"); |
| 875 | p++; |
| 876 | } |
| 877 | } |
| 878 | |
| 879 | static void |
| 880 | dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab, |
| 881 | struct ui_file *outfile) |
| 882 | { |
| 883 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
| 884 | int i; |
| 885 | |
| 886 | if (psymtab->anonymous) |
| 887 | { |
| 888 | fprintf_filtered (outfile, "\nAnonymous partial symtab (%s) ", |
| 889 | psymtab->filename); |
| 890 | } |
| 891 | else |
| 892 | { |
| 893 | fprintf_filtered (outfile, "\nPartial symtab for source file %s ", |
| 894 | psymtab->filename); |
| 895 | } |
| 896 | fprintf_filtered (outfile, "(object "); |
| 897 | gdb_print_host_address (psymtab, outfile); |
| 898 | fprintf_filtered (outfile, ")\n\n"); |
| 899 | fprintf_filtered (outfile, " Read from object file %s (", |
| 900 | objfile_name (objfile)); |
| 901 | gdb_print_host_address (objfile, outfile); |
| 902 | fprintf_filtered (outfile, ")\n"); |
| 903 | |
| 904 | if (psymtab->readin) |
| 905 | { |
| 906 | fprintf_filtered (outfile, |
| 907 | " Full symtab was read (at "); |
| 908 | gdb_print_host_address (psymtab->compunit_symtab, outfile); |
| 909 | fprintf_filtered (outfile, " by function at "); |
| 910 | gdb_print_host_address (psymtab->read_symtab, outfile); |
| 911 | fprintf_filtered (outfile, ")\n"); |
| 912 | } |
| 913 | |
| 914 | fprintf_filtered (outfile, " Symbols cover text addresses "); |
| 915 | fputs_filtered (paddress (gdbarch, psymtab->text_low (objfile)), outfile); |
| 916 | fprintf_filtered (outfile, "-"); |
| 917 | fputs_filtered (paddress (gdbarch, psymtab->text_high (objfile)), outfile); |
| 918 | fprintf_filtered (outfile, "\n"); |
| 919 | fprintf_filtered (outfile, " Address map supported - %s.\n", |
| 920 | psymtab->psymtabs_addrmap_supported ? "yes" : "no"); |
| 921 | fprintf_filtered (outfile, " Depends on %d other partial symtabs.\n", |
| 922 | psymtab->number_of_dependencies); |
| 923 | for (i = 0; i < psymtab->number_of_dependencies; i++) |
| 924 | { |
| 925 | fprintf_filtered (outfile, " %d ", i); |
| 926 | gdb_print_host_address (psymtab->dependencies[i], outfile); |
| 927 | fprintf_filtered (outfile, " %s\n", |
| 928 | psymtab->dependencies[i]->filename); |
| 929 | } |
| 930 | if (psymtab->user != NULL) |
| 931 | { |
| 932 | fprintf_filtered (outfile, " Shared partial symtab with user "); |
| 933 | gdb_print_host_address (psymtab->user, outfile); |
| 934 | fprintf_filtered (outfile, "\n"); |
| 935 | } |
| 936 | if (psymtab->n_global_syms > 0) |
| 937 | { |
| 938 | print_partial_symbols (gdbarch, objfile, |
| 939 | &objfile->global_psymbols[psymtab->globals_offset], |
| 940 | psymtab->n_global_syms, "Global", outfile); |
| 941 | } |
| 942 | if (psymtab->n_static_syms > 0) |
| 943 | { |
| 944 | print_partial_symbols (gdbarch, objfile, |
| 945 | &objfile->static_psymbols[psymtab->statics_offset], |
| 946 | psymtab->n_static_syms, "Static", outfile); |
| 947 | } |
| 948 | fprintf_filtered (outfile, "\n"); |
| 949 | } |
| 950 | |
| 951 | /* Psymtab version of print_stats. See its definition in |
| 952 | the definition of quick_symbol_functions in symfile.h. */ |
| 953 | |
| 954 | static void |
| 955 | psym_print_stats (struct objfile *objfile) |
| 956 | { |
| 957 | int i; |
| 958 | |
| 959 | i = 0; |
| 960 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 961 | { |
| 962 | if (ps->readin == 0) |
| 963 | i++; |
| 964 | } |
| 965 | printf_filtered (_(" Number of psym tables (not yet expanded): %d\n"), i); |
| 966 | } |
| 967 | |
| 968 | /* Psymtab version of dump. See its definition in |
| 969 | the definition of quick_symbol_functions in symfile.h. */ |
| 970 | |
| 971 | static void |
| 972 | psym_dump (struct objfile *objfile) |
| 973 | { |
| 974 | struct partial_symtab *psymtab; |
| 975 | |
| 976 | if (objfile->psymtabs) |
| 977 | { |
| 978 | printf_filtered ("Psymtabs:\n"); |
| 979 | for (psymtab = objfile->psymtabs; |
| 980 | psymtab != NULL; |
| 981 | psymtab = psymtab->next) |
| 982 | { |
| 983 | printf_filtered ("%s at ", |
| 984 | psymtab->filename); |
| 985 | gdb_print_host_address (psymtab, gdb_stdout); |
| 986 | printf_filtered (", "); |
| 987 | wrap_here (" "); |
| 988 | } |
| 989 | printf_filtered ("\n\n"); |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | /* Psymtab version of expand_symtabs_for_function. See its definition in |
| 994 | the definition of quick_symbol_functions in symfile.h. */ |
| 995 | |
| 996 | static void |
| 997 | psym_expand_symtabs_for_function (struct objfile *objfile, |
| 998 | const char *func_name) |
| 999 | { |
| 1000 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 1001 | { |
| 1002 | if (ps->readin) |
| 1003 | continue; |
| 1004 | |
| 1005 | if ((lookup_partial_symbol (objfile, ps, func_name, 1, VAR_DOMAIN) |
| 1006 | != NULL) |
| 1007 | || (lookup_partial_symbol (objfile, ps, func_name, 0, VAR_DOMAIN) |
| 1008 | != NULL)) |
| 1009 | psymtab_to_symtab (objfile, ps); |
| 1010 | } |
| 1011 | } |
| 1012 | |
| 1013 | /* Psymtab version of expand_all_symtabs. See its definition in |
| 1014 | the definition of quick_symbol_functions in symfile.h. */ |
| 1015 | |
| 1016 | static void |
| 1017 | psym_expand_all_symtabs (struct objfile *objfile) |
| 1018 | { |
| 1019 | for (partial_symtab *psymtab : require_partial_symbols (objfile, 1)) |
| 1020 | psymtab_to_symtab (objfile, psymtab); |
| 1021 | } |
| 1022 | |
| 1023 | /* Psymtab version of expand_symtabs_with_fullname. See its definition in |
| 1024 | the definition of quick_symbol_functions in symfile.h. */ |
| 1025 | |
| 1026 | static void |
| 1027 | psym_expand_symtabs_with_fullname (struct objfile *objfile, |
| 1028 | const char *fullname) |
| 1029 | { |
| 1030 | for (partial_symtab *p : require_partial_symbols (objfile, 1)) |
| 1031 | { |
| 1032 | /* Anonymous psymtabs don't have a name of a source file. */ |
| 1033 | if (p->anonymous) |
| 1034 | continue; |
| 1035 | |
| 1036 | /* psymtab_to_fullname tries to open the file which is slow. |
| 1037 | Don't call it if we know the basenames don't match. */ |
| 1038 | if ((basenames_may_differ |
| 1039 | || filename_cmp (lbasename (fullname), lbasename (p->filename)) == 0) |
| 1040 | && filename_cmp (fullname, psymtab_to_fullname (p)) == 0) |
| 1041 | psymtab_to_symtab (objfile, p); |
| 1042 | } |
| 1043 | } |
| 1044 | |
| 1045 | /* Psymtab version of map_symbol_filenames. See its definition in |
| 1046 | the definition of quick_symbol_functions in symfile.h. */ |
| 1047 | |
| 1048 | static void |
| 1049 | psym_map_symbol_filenames (struct objfile *objfile, |
| 1050 | symbol_filename_ftype *fun, void *data, |
| 1051 | int need_fullname) |
| 1052 | { |
| 1053 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 1054 | { |
| 1055 | const char *fullname; |
| 1056 | |
| 1057 | if (ps->readin) |
| 1058 | continue; |
| 1059 | |
| 1060 | /* We can skip shared psymtabs here, because any file name will be |
| 1061 | attached to the unshared psymtab. */ |
| 1062 | if (ps->user != NULL) |
| 1063 | continue; |
| 1064 | |
| 1065 | /* Anonymous psymtabs don't have a file name. */ |
| 1066 | if (ps->anonymous) |
| 1067 | continue; |
| 1068 | |
| 1069 | QUIT; |
| 1070 | if (need_fullname) |
| 1071 | fullname = psymtab_to_fullname (ps); |
| 1072 | else |
| 1073 | fullname = NULL; |
| 1074 | (*fun) (ps->filename, fullname, data); |
| 1075 | } |
| 1076 | } |
| 1077 | |
| 1078 | /* Finds the fullname that a partial_symtab represents. |
| 1079 | |
| 1080 | If this functions finds the fullname, it will save it in ps->fullname |
| 1081 | and it will also return the value. |
| 1082 | |
| 1083 | If this function fails to find the file that this partial_symtab represents, |
| 1084 | NULL will be returned and ps->fullname will be set to NULL. */ |
| 1085 | |
| 1086 | static const char * |
| 1087 | psymtab_to_fullname (struct partial_symtab *ps) |
| 1088 | { |
| 1089 | gdb_assert (!ps->anonymous); |
| 1090 | |
| 1091 | /* Use cached copy if we have it. |
| 1092 | We rely on forget_cached_source_info being called appropriately |
| 1093 | to handle cases like the file being moved. */ |
| 1094 | if (ps->fullname == NULL) |
| 1095 | { |
| 1096 | gdb::unique_xmalloc_ptr<char> fullname; |
| 1097 | scoped_fd fd = find_and_open_source (ps->filename, ps->dirname, |
| 1098 | &fullname); |
| 1099 | ps->fullname = fullname.release (); |
| 1100 | |
| 1101 | if (fd.get () < 0) |
| 1102 | { |
| 1103 | /* rewrite_source_path would be applied by find_and_open_source, we |
| 1104 | should report the pathname where GDB tried to find the file. */ |
| 1105 | |
| 1106 | if (ps->dirname == NULL || IS_ABSOLUTE_PATH (ps->filename)) |
| 1107 | fullname.reset (xstrdup (ps->filename)); |
| 1108 | else |
| 1109 | fullname.reset (concat (ps->dirname, SLASH_STRING, |
| 1110 | ps->filename, (char *) NULL)); |
| 1111 | |
| 1112 | ps->fullname = rewrite_source_path (fullname.get ()).release (); |
| 1113 | if (ps->fullname == NULL) |
| 1114 | ps->fullname = fullname.release (); |
| 1115 | } |
| 1116 | } |
| 1117 | |
| 1118 | return ps->fullname; |
| 1119 | } |
| 1120 | |
| 1121 | /* For all symbols, s, in BLOCK that are in DOMAIN and match NAME |
| 1122 | according to the function MATCH, call CALLBACK(BLOCK, s, DATA). |
| 1123 | BLOCK is assumed to come from OBJFILE. Returns 1 iff CALLBACK |
| 1124 | ever returns non-zero, and otherwise returns 0. */ |
| 1125 | |
| 1126 | static int |
| 1127 | map_block (const char *name, domain_enum domain, struct objfile *objfile, |
| 1128 | struct block *block, |
| 1129 | int (*callback) (struct block *, struct symbol *, void *), |
| 1130 | void *data, symbol_name_match_type match) |
| 1131 | { |
| 1132 | struct block_iterator iter; |
| 1133 | struct symbol *sym; |
| 1134 | |
| 1135 | lookup_name_info lookup_name (name, match); |
| 1136 | |
| 1137 | for (sym = block_iter_match_first (block, lookup_name, &iter); |
| 1138 | sym != NULL; |
| 1139 | sym = block_iter_match_next (lookup_name, &iter)) |
| 1140 | { |
| 1141 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
| 1142 | SYMBOL_DOMAIN (sym), domain)) |
| 1143 | { |
| 1144 | if (callback (block, sym, data)) |
| 1145 | return 1; |
| 1146 | } |
| 1147 | } |
| 1148 | |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | /* Psymtab version of map_matching_symbols. See its definition in |
| 1153 | the definition of quick_symbol_functions in symfile.h. */ |
| 1154 | |
| 1155 | static void |
| 1156 | psym_map_matching_symbols (struct objfile *objfile, |
| 1157 | const char *name, domain_enum domain, |
| 1158 | int global, |
| 1159 | int (*callback) (struct block *, |
| 1160 | struct symbol *, void *), |
| 1161 | void *data, |
| 1162 | symbol_name_match_type match, |
| 1163 | symbol_compare_ftype *ordered_compare) |
| 1164 | { |
| 1165 | const int block_kind = global ? GLOBAL_BLOCK : STATIC_BLOCK; |
| 1166 | |
| 1167 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 1168 | { |
| 1169 | QUIT; |
| 1170 | if (ps->readin |
| 1171 | || match_partial_symbol (objfile, ps, global, name, domain, match, |
| 1172 | ordered_compare)) |
| 1173 | { |
| 1174 | struct compunit_symtab *cust = psymtab_to_symtab (objfile, ps); |
| 1175 | struct block *block; |
| 1176 | |
| 1177 | if (cust == NULL) |
| 1178 | continue; |
| 1179 | block = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), block_kind); |
| 1180 | if (map_block (name, domain, objfile, block, |
| 1181 | callback, data, match)) |
| 1182 | return; |
| 1183 | if (callback (block, NULL, data)) |
| 1184 | return; |
| 1185 | } |
| 1186 | } |
| 1187 | } |
| 1188 | |
| 1189 | /* A helper for psym_expand_symtabs_matching that handles searching |
| 1190 | included psymtabs. This returns true if a symbol is found, and |
| 1191 | false otherwise. It also updates the 'searched_flag' on the |
| 1192 | various psymtabs that it searches. */ |
| 1193 | |
| 1194 | static bool |
| 1195 | recursively_search_psymtabs |
| 1196 | (struct partial_symtab *ps, |
| 1197 | struct objfile *objfile, |
| 1198 | enum search_domain domain, |
| 1199 | const lookup_name_info &lookup_name, |
| 1200 | gdb::function_view<expand_symtabs_symbol_matcher_ftype> sym_matcher) |
| 1201 | { |
| 1202 | int keep_going = 1; |
| 1203 | enum psymtab_search_status result = PST_SEARCHED_AND_NOT_FOUND; |
| 1204 | int i; |
| 1205 | |
| 1206 | if (ps->searched_flag != PST_NOT_SEARCHED) |
| 1207 | return ps->searched_flag == PST_SEARCHED_AND_FOUND; |
| 1208 | |
| 1209 | /* Recurse into shared psymtabs first, because they may have already |
| 1210 | been searched, and this could save some time. */ |
| 1211 | for (i = 0; i < ps->number_of_dependencies; ++i) |
| 1212 | { |
| 1213 | int r; |
| 1214 | |
| 1215 | /* Skip non-shared dependencies, these are handled elsewhere. */ |
| 1216 | if (ps->dependencies[i]->user == NULL) |
| 1217 | continue; |
| 1218 | |
| 1219 | r = recursively_search_psymtabs (ps->dependencies[i], |
| 1220 | objfile, domain, lookup_name, |
| 1221 | sym_matcher); |
| 1222 | if (r != 0) |
| 1223 | { |
| 1224 | ps->searched_flag = PST_SEARCHED_AND_FOUND; |
| 1225 | return true; |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | partial_symbol **gbound |
| 1230 | = objfile->global_psymbols.data () + ps->globals_offset + ps->n_global_syms; |
| 1231 | partial_symbol **sbound |
| 1232 | = objfile->static_psymbols.data () + ps->statics_offset + ps->n_static_syms; |
| 1233 | partial_symbol **bound = gbound; |
| 1234 | |
| 1235 | /* Go through all of the symbols stored in a partial |
| 1236 | symtab in one loop. */ |
| 1237 | partial_symbol **psym = objfile->global_psymbols.data () + ps->globals_offset; |
| 1238 | while (keep_going) |
| 1239 | { |
| 1240 | if (psym >= bound) |
| 1241 | { |
| 1242 | if (bound == gbound && ps->n_static_syms != 0) |
| 1243 | { |
| 1244 | psym = objfile->static_psymbols.data () + ps->statics_offset; |
| 1245 | bound = sbound; |
| 1246 | } |
| 1247 | else |
| 1248 | keep_going = 0; |
| 1249 | continue; |
| 1250 | } |
| 1251 | else |
| 1252 | { |
| 1253 | QUIT; |
| 1254 | |
| 1255 | if ((domain == ALL_DOMAIN |
| 1256 | || (domain == VARIABLES_DOMAIN |
| 1257 | && (*psym)->aclass != LOC_TYPEDEF |
| 1258 | && (*psym)->aclass != LOC_BLOCK) |
| 1259 | || (domain == FUNCTIONS_DOMAIN |
| 1260 | && (*psym)->aclass == LOC_BLOCK) |
| 1261 | || (domain == TYPES_DOMAIN |
| 1262 | && (*psym)->aclass == LOC_TYPEDEF)) |
| 1263 | && psymbol_name_matches (*psym, lookup_name) |
| 1264 | && (sym_matcher == NULL || sym_matcher (symbol_search_name (*psym)))) |
| 1265 | { |
| 1266 | /* Found a match, so notify our caller. */ |
| 1267 | result = PST_SEARCHED_AND_FOUND; |
| 1268 | keep_going = 0; |
| 1269 | } |
| 1270 | } |
| 1271 | psym++; |
| 1272 | } |
| 1273 | |
| 1274 | ps->searched_flag = result; |
| 1275 | return result == PST_SEARCHED_AND_FOUND; |
| 1276 | } |
| 1277 | |
| 1278 | /* Psymtab version of expand_symtabs_matching. See its definition in |
| 1279 | the definition of quick_symbol_functions in symfile.h. */ |
| 1280 | |
| 1281 | static void |
| 1282 | psym_expand_symtabs_matching |
| 1283 | (struct objfile *objfile, |
| 1284 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher, |
| 1285 | const lookup_name_info &lookup_name_in, |
| 1286 | gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher, |
| 1287 | gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify, |
| 1288 | enum search_domain domain) |
| 1289 | { |
| 1290 | lookup_name_info lookup_name = lookup_name_in.make_ignore_params (); |
| 1291 | |
| 1292 | /* Clear the search flags. */ |
| 1293 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 1294 | ps->searched_flag = PST_NOT_SEARCHED; |
| 1295 | |
| 1296 | for (partial_symtab *ps : objfile_psymtabs (objfile)) |
| 1297 | { |
| 1298 | QUIT; |
| 1299 | |
| 1300 | if (ps->readin) |
| 1301 | continue; |
| 1302 | |
| 1303 | /* We skip shared psymtabs because file-matching doesn't apply |
| 1304 | to them; but we search them later in the loop. */ |
| 1305 | if (ps->user != NULL) |
| 1306 | continue; |
| 1307 | |
| 1308 | if (file_matcher) |
| 1309 | { |
| 1310 | bool match; |
| 1311 | |
| 1312 | if (ps->anonymous) |
| 1313 | continue; |
| 1314 | |
| 1315 | match = file_matcher (ps->filename, false); |
| 1316 | if (!match) |
| 1317 | { |
| 1318 | /* Before we invoke realpath, which can get expensive when many |
| 1319 | files are involved, do a quick comparison of the basenames. */ |
| 1320 | if (basenames_may_differ |
| 1321 | || file_matcher (lbasename (ps->filename), true)) |
| 1322 | match = file_matcher (psymtab_to_fullname (ps), false); |
| 1323 | } |
| 1324 | if (!match) |
| 1325 | continue; |
| 1326 | } |
| 1327 | |
| 1328 | if (recursively_search_psymtabs (ps, objfile, domain, |
| 1329 | lookup_name, symbol_matcher)) |
| 1330 | { |
| 1331 | struct compunit_symtab *symtab = |
| 1332 | psymtab_to_symtab (objfile, ps); |
| 1333 | |
| 1334 | if (expansion_notify != NULL) |
| 1335 | expansion_notify (symtab); |
| 1336 | } |
| 1337 | } |
| 1338 | } |
| 1339 | |
| 1340 | /* Psymtab version of has_symbols. See its definition in |
| 1341 | the definition of quick_symbol_functions in symfile.h. */ |
| 1342 | |
| 1343 | static int |
| 1344 | psym_has_symbols (struct objfile *objfile) |
| 1345 | { |
| 1346 | return objfile->psymtabs != NULL; |
| 1347 | } |
| 1348 | |
| 1349 | /* Helper function for psym_find_compunit_symtab_by_address that fills |
| 1350 | in psymbol_map for a given range of psymbols. */ |
| 1351 | |
| 1352 | static void |
| 1353 | psym_fill_psymbol_map (struct objfile *objfile, |
| 1354 | struct partial_symtab *psymtab, |
| 1355 | std::set<CORE_ADDR> *seen_addrs, |
| 1356 | const std::vector<partial_symbol *> &symbols, |
| 1357 | int start, |
| 1358 | int length) |
| 1359 | { |
| 1360 | for (int i = 0; i < length; ++i) |
| 1361 | { |
| 1362 | struct partial_symbol *psym = symbols[start + i]; |
| 1363 | |
| 1364 | if (psym->aclass == LOC_STATIC) |
| 1365 | { |
| 1366 | CORE_ADDR addr = psym->address (objfile); |
| 1367 | if (seen_addrs->find (addr) == seen_addrs->end ()) |
| 1368 | { |
| 1369 | seen_addrs->insert (addr); |
| 1370 | objfile->psymbol_map.emplace_back (addr, psymtab); |
| 1371 | } |
| 1372 | } |
| 1373 | } |
| 1374 | } |
| 1375 | |
| 1376 | /* See find_compunit_symtab_by_address in quick_symbol_functions, in |
| 1377 | symfile.h. */ |
| 1378 | |
| 1379 | static compunit_symtab * |
| 1380 | psym_find_compunit_symtab_by_address (struct objfile *objfile, |
| 1381 | CORE_ADDR address) |
| 1382 | { |
| 1383 | if (objfile->psymbol_map.empty ()) |
| 1384 | { |
| 1385 | std::set<CORE_ADDR> seen_addrs; |
| 1386 | |
| 1387 | for (partial_symtab *pst : require_partial_symbols (objfile, 1)) |
| 1388 | { |
| 1389 | psym_fill_psymbol_map (objfile, pst, |
| 1390 | &seen_addrs, |
| 1391 | objfile->global_psymbols, |
| 1392 | pst->globals_offset, |
| 1393 | pst->n_global_syms); |
| 1394 | psym_fill_psymbol_map (objfile, pst, |
| 1395 | &seen_addrs, |
| 1396 | objfile->static_psymbols, |
| 1397 | pst->statics_offset, |
| 1398 | pst->n_static_syms); |
| 1399 | } |
| 1400 | |
| 1401 | objfile->psymbol_map.shrink_to_fit (); |
| 1402 | |
| 1403 | std::sort (objfile->psymbol_map.begin (), objfile->psymbol_map.end (), |
| 1404 | [] (const std::pair<CORE_ADDR, partial_symtab *> &a, |
| 1405 | const std::pair<CORE_ADDR, partial_symtab *> &b) |
| 1406 | { |
| 1407 | return a.first < b.first; |
| 1408 | }); |
| 1409 | } |
| 1410 | |
| 1411 | auto iter = std::lower_bound |
| 1412 | (objfile->psymbol_map.begin (), objfile->psymbol_map.end (), address, |
| 1413 | [] (const std::pair<CORE_ADDR, partial_symtab *> &a, |
| 1414 | CORE_ADDR b) |
| 1415 | { |
| 1416 | return a.first < b; |
| 1417 | }); |
| 1418 | |
| 1419 | if (iter == objfile->psymbol_map.end () || iter->first != address) |
| 1420 | return NULL; |
| 1421 | |
| 1422 | return psymtab_to_symtab (objfile, iter->second); |
| 1423 | } |
| 1424 | |
| 1425 | const struct quick_symbol_functions psym_functions = |
| 1426 | { |
| 1427 | psym_has_symbols, |
| 1428 | psym_find_last_source_symtab, |
| 1429 | psym_forget_cached_source_info, |
| 1430 | psym_map_symtabs_matching_filename, |
| 1431 | psym_lookup_symbol, |
| 1432 | psym_print_stats, |
| 1433 | psym_dump, |
| 1434 | psym_expand_symtabs_for_function, |
| 1435 | psym_expand_all_symtabs, |
| 1436 | psym_expand_symtabs_with_fullname, |
| 1437 | psym_map_matching_symbols, |
| 1438 | psym_expand_symtabs_matching, |
| 1439 | psym_find_pc_sect_compunit_symtab, |
| 1440 | psym_find_compunit_symtab_by_address, |
| 1441 | psym_map_symbol_filenames |
| 1442 | }; |
| 1443 | |
| 1444 | \f |
| 1445 | |
| 1446 | static void |
| 1447 | sort_pst_symbols (struct objfile *objfile, struct partial_symtab *pst) |
| 1448 | { |
| 1449 | /* Sort the global list; don't sort the static list. */ |
| 1450 | auto begin = objfile->global_psymbols.begin (); |
| 1451 | std::advance (begin, pst->globals_offset); |
| 1452 | |
| 1453 | /* The psymbols for this partial_symtab are currently at the end of the |
| 1454 | vector. */ |
| 1455 | auto end = objfile->global_psymbols.end (); |
| 1456 | |
| 1457 | std::sort (begin, end, [] (partial_symbol *s1, partial_symbol *s2) |
| 1458 | { |
| 1459 | return strcmp_iw_ordered (symbol_search_name (s1), |
| 1460 | symbol_search_name (s2)) < 0; |
| 1461 | }); |
| 1462 | } |
| 1463 | |
| 1464 | /* Allocate and partially fill a partial symtab. It will be |
| 1465 | completely filled at the end of the symbol list. |
| 1466 | |
| 1467 | FILENAME is the name of the symbol-file we are reading from. */ |
| 1468 | |
| 1469 | struct partial_symtab * |
| 1470 | start_psymtab_common (struct objfile *objfile, |
| 1471 | const char *filename, |
| 1472 | CORE_ADDR textlow, |
| 1473 | std::vector<partial_symbol *> &global_psymbols, |
| 1474 | std::vector<partial_symbol *> &static_psymbols) |
| 1475 | { |
| 1476 | struct partial_symtab *psymtab; |
| 1477 | |
| 1478 | psymtab = allocate_psymtab (filename, objfile); |
| 1479 | psymtab->set_text_low (textlow); |
| 1480 | psymtab->set_text_high (psymtab->raw_text_low ()); /* default */ |
| 1481 | psymtab->globals_offset = global_psymbols.size (); |
| 1482 | psymtab->statics_offset = static_psymbols.size (); |
| 1483 | return psymtab; |
| 1484 | } |
| 1485 | |
| 1486 | /* Perform "finishing up" operations of a partial symtab. */ |
| 1487 | |
| 1488 | void |
| 1489 | end_psymtab_common (struct objfile *objfile, struct partial_symtab *pst) |
| 1490 | { |
| 1491 | pst->n_global_syms = objfile->global_psymbols.size () - pst->globals_offset; |
| 1492 | pst->n_static_syms = objfile->static_psymbols.size () - pst->statics_offset; |
| 1493 | |
| 1494 | sort_pst_symbols (objfile, pst); |
| 1495 | } |
| 1496 | |
| 1497 | /* Calculate a hash code for the given partial symbol. The hash is |
| 1498 | calculated using the symbol's value, language, domain, class |
| 1499 | and name. These are the values which are set by |
| 1500 | add_psymbol_to_bcache. */ |
| 1501 | |
| 1502 | static unsigned long |
| 1503 | psymbol_hash (const void *addr, int length) |
| 1504 | { |
| 1505 | unsigned long h = 0; |
| 1506 | struct partial_symbol *psymbol = (struct partial_symbol *) addr; |
| 1507 | unsigned int lang = psymbol->language; |
| 1508 | unsigned int domain = psymbol->domain; |
| 1509 | unsigned int theclass = psymbol->aclass; |
| 1510 | |
| 1511 | h = hash_continue (&psymbol->value, sizeof (psymbol->value), h); |
| 1512 | h = hash_continue (&lang, sizeof (unsigned int), h); |
| 1513 | h = hash_continue (&domain, sizeof (unsigned int), h); |
| 1514 | h = hash_continue (&theclass, sizeof (unsigned int), h); |
| 1515 | /* Note that psymbol names are interned via symbol_set_names, so |
| 1516 | there's no need to hash the contents of the name here. */ |
| 1517 | h = hash_continue (&psymbol->name, |
| 1518 | sizeof (psymbol->name), h); |
| 1519 | |
| 1520 | return h; |
| 1521 | } |
| 1522 | |
| 1523 | /* Returns true if the symbol at addr1 equals the symbol at addr2. |
| 1524 | For the comparison this function uses a symbols value, |
| 1525 | language, domain, class and name. */ |
| 1526 | |
| 1527 | static int |
| 1528 | psymbol_compare (const void *addr1, const void *addr2, int length) |
| 1529 | { |
| 1530 | struct partial_symbol *sym1 = (struct partial_symbol *) addr1; |
| 1531 | struct partial_symbol *sym2 = (struct partial_symbol *) addr2; |
| 1532 | |
| 1533 | return (memcmp (&sym1->value, &sym2->value, |
| 1534 | sizeof (sym1->value)) == 0 |
| 1535 | && sym1->language == sym2->language |
| 1536 | && sym1->domain == sym2->domain |
| 1537 | && sym1->aclass == sym2->aclass |
| 1538 | /* Note that psymbol names are interned via |
| 1539 | symbol_set_names, so there's no need to compare the |
| 1540 | contents of the name here. */ |
| 1541 | && sym1->name == sym2->name); |
| 1542 | } |
| 1543 | |
| 1544 | /* Initialize a partial symbol bcache. */ |
| 1545 | |
| 1546 | struct psymbol_bcache * |
| 1547 | psymbol_bcache_init (void) |
| 1548 | { |
| 1549 | struct psymbol_bcache *bcache = XCNEW (struct psymbol_bcache); |
| 1550 | |
| 1551 | bcache->bcache = bcache_xmalloc (psymbol_hash, psymbol_compare); |
| 1552 | return bcache; |
| 1553 | } |
| 1554 | |
| 1555 | /* Free a partial symbol bcache. */ |
| 1556 | |
| 1557 | void |
| 1558 | psymbol_bcache_free (struct psymbol_bcache *bcache) |
| 1559 | { |
| 1560 | if (bcache == NULL) |
| 1561 | return; |
| 1562 | |
| 1563 | bcache_xfree (bcache->bcache); |
| 1564 | xfree (bcache); |
| 1565 | } |
| 1566 | |
| 1567 | /* Return the internal bcache of the psymbol_bcache BCACHE. */ |
| 1568 | |
| 1569 | struct bcache * |
| 1570 | psymbol_bcache_get_bcache (struct psymbol_bcache *bcache) |
| 1571 | { |
| 1572 | return bcache->bcache; |
| 1573 | } |
| 1574 | |
| 1575 | /* Find a copy of the SYM in BCACHE. If BCACHE has never seen this |
| 1576 | symbol before, add a copy to BCACHE. In either case, return a pointer |
| 1577 | to BCACHE's copy of the symbol. If optional ADDED is not NULL, return |
| 1578 | 1 in case of new entry or 0 if returning an old entry. */ |
| 1579 | |
| 1580 | static struct partial_symbol * |
| 1581 | psymbol_bcache_full (struct partial_symbol *sym, |
| 1582 | struct psymbol_bcache *bcache, |
| 1583 | int *added) |
| 1584 | { |
| 1585 | return ((struct partial_symbol *) |
| 1586 | bcache_full (sym, sizeof (struct partial_symbol), bcache->bcache, |
| 1587 | added)); |
| 1588 | } |
| 1589 | |
| 1590 | /* Helper function, initialises partial symbol structure and stashes |
| 1591 | it into objfile's bcache. Note that our caching mechanism will |
| 1592 | use all fields of struct partial_symbol to determine hash value of the |
| 1593 | structure. In other words, having two symbols with the same name but |
| 1594 | different domain (or address) is possible and correct. */ |
| 1595 | |
| 1596 | static struct partial_symbol * |
| 1597 | add_psymbol_to_bcache (const char *name, int namelength, int copy_name, |
| 1598 | domain_enum domain, |
| 1599 | enum address_class theclass, |
| 1600 | short section, |
| 1601 | CORE_ADDR coreaddr, |
| 1602 | enum language language, struct objfile *objfile, |
| 1603 | int *added) |
| 1604 | { |
| 1605 | struct partial_symbol psymbol; |
| 1606 | |
| 1607 | psymbol.set_unrelocated_address (coreaddr); |
| 1608 | psymbol.section = section; |
| 1609 | psymbol.domain = domain; |
| 1610 | psymbol.aclass = theclass; |
| 1611 | |
| 1612 | memset (&psymbol.language_specific, 0, sizeof (psymbol.language_specific)); |
| 1613 | psymbol.ada_mangled = 0; |
| 1614 | symbol_set_language (&psymbol, language, &objfile->objfile_obstack); |
| 1615 | symbol_set_names (&psymbol, name, namelength, copy_name, objfile); |
| 1616 | |
| 1617 | /* Stash the partial symbol away in the cache. */ |
| 1618 | return psymbol_bcache_full (&psymbol, objfile->psymbol_cache, added); |
| 1619 | } |
| 1620 | |
| 1621 | /* Helper function, adds partial symbol to the given partial symbol list. */ |
| 1622 | |
| 1623 | static void |
| 1624 | append_psymbol_to_list (std::vector<partial_symbol *> *list, |
| 1625 | struct partial_symbol *psym, |
| 1626 | struct objfile *objfile) |
| 1627 | { |
| 1628 | list->push_back (psym); |
| 1629 | OBJSTAT (objfile, n_psyms++); |
| 1630 | } |
| 1631 | |
| 1632 | /* Add a symbol with a long value to a psymtab. |
| 1633 | Since one arg is a struct, we pass in a ptr and deref it (sigh). |
| 1634 | The only value we need to store for psyms is an address. |
| 1635 | For all other psyms pass zero for COREADDR. |
| 1636 | Return the partial symbol that has been added. */ |
| 1637 | |
| 1638 | void |
| 1639 | add_psymbol_to_list (const char *name, int namelength, int copy_name, |
| 1640 | domain_enum domain, |
| 1641 | enum address_class theclass, |
| 1642 | short section, |
| 1643 | std::vector<partial_symbol *> *list, |
| 1644 | CORE_ADDR coreaddr, |
| 1645 | enum language language, struct objfile *objfile) |
| 1646 | { |
| 1647 | struct partial_symbol *psym; |
| 1648 | |
| 1649 | int added; |
| 1650 | |
| 1651 | /* Stash the partial symbol away in the cache. */ |
| 1652 | psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, theclass, |
| 1653 | section, coreaddr, language, objfile, &added); |
| 1654 | |
| 1655 | /* Do not duplicate global partial symbols. */ |
| 1656 | if (list == &objfile->global_psymbols |
| 1657 | && !added) |
| 1658 | return; |
| 1659 | |
| 1660 | /* Save pointer to partial symbol in psymtab, growing symtab if needed. */ |
| 1661 | append_psymbol_to_list (list, psym, objfile); |
| 1662 | } |
| 1663 | |
| 1664 | /* Initialize storage for partial symbols. */ |
| 1665 | |
| 1666 | void |
| 1667 | init_psymbol_list (struct objfile *objfile, int total_symbols) |
| 1668 | { |
| 1669 | /* Free any previously allocated psymbol lists. */ |
| 1670 | objfile->global_psymbols.clear (); |
| 1671 | objfile->static_psymbols.clear (); |
| 1672 | |
| 1673 | /* Current best guess is that approximately a twentieth |
| 1674 | of the total symbols (in a debugging file) are global or static |
| 1675 | oriented symbols, then multiply that by slop factor of two. */ |
| 1676 | objfile->global_psymbols.reserve (total_symbols / 10); |
| 1677 | objfile->static_psymbols.reserve (total_symbols / 10); |
| 1678 | } |
| 1679 | |
| 1680 | struct partial_symtab * |
| 1681 | allocate_psymtab (const char *filename, struct objfile *objfile) |
| 1682 | { |
| 1683 | struct partial_symtab *psymtab; |
| 1684 | |
| 1685 | if (objfile->free_psymtabs) |
| 1686 | { |
| 1687 | psymtab = objfile->free_psymtabs; |
| 1688 | objfile->free_psymtabs = psymtab->next; |
| 1689 | } |
| 1690 | else |
| 1691 | psymtab = XOBNEW (&objfile->objfile_obstack, partial_symtab); |
| 1692 | |
| 1693 | memset (psymtab, 0, sizeof (struct partial_symtab)); |
| 1694 | psymtab->filename |
| 1695 | = (const char *) bcache (filename, strlen (filename) + 1, |
| 1696 | objfile->per_bfd->filename_cache); |
| 1697 | psymtab->compunit_symtab = NULL; |
| 1698 | |
| 1699 | /* Prepend it to the psymtab list for the objfile it belongs to. |
| 1700 | Psymtabs are searched in most recent inserted -> least recent |
| 1701 | inserted order. */ |
| 1702 | |
| 1703 | psymtab->next = objfile->psymtabs; |
| 1704 | objfile->psymtabs = psymtab; |
| 1705 | |
| 1706 | if (symtab_create_debug) |
| 1707 | { |
| 1708 | /* Be a bit clever with debugging messages, and don't print objfile |
| 1709 | every time, only when it changes. */ |
| 1710 | static char *last_objfile_name = NULL; |
| 1711 | |
| 1712 | if (last_objfile_name == NULL |
| 1713 | || strcmp (last_objfile_name, objfile_name (objfile)) != 0) |
| 1714 | { |
| 1715 | xfree (last_objfile_name); |
| 1716 | last_objfile_name = xstrdup (objfile_name (objfile)); |
| 1717 | fprintf_filtered (gdb_stdlog, |
| 1718 | "Creating one or more psymtabs for objfile %s ...\n", |
| 1719 | last_objfile_name); |
| 1720 | } |
| 1721 | fprintf_filtered (gdb_stdlog, |
| 1722 | "Created psymtab %s for module %s.\n", |
| 1723 | host_address_to_string (psymtab), filename); |
| 1724 | } |
| 1725 | |
| 1726 | return psymtab; |
| 1727 | } |
| 1728 | |
| 1729 | void |
| 1730 | discard_psymtab (struct objfile *objfile, struct partial_symtab *pst) |
| 1731 | { |
| 1732 | struct partial_symtab **prev_pst; |
| 1733 | |
| 1734 | /* From dbxread.c: |
| 1735 | Empty psymtabs happen as a result of header files which don't |
| 1736 | have any symbols in them. There can be a lot of them. But this |
| 1737 | check is wrong, in that a psymtab with N_SLINE entries but |
| 1738 | nothing else is not empty, but we don't realize that. Fixing |
| 1739 | that without slowing things down might be tricky. */ |
| 1740 | |
| 1741 | /* First, snip it out of the psymtab chain. */ |
| 1742 | |
| 1743 | prev_pst = &(objfile->psymtabs); |
| 1744 | while ((*prev_pst) != pst) |
| 1745 | prev_pst = &((*prev_pst)->next); |
| 1746 | (*prev_pst) = pst->next; |
| 1747 | |
| 1748 | /* Next, put it on a free list for recycling. */ |
| 1749 | |
| 1750 | pst->next = objfile->free_psymtabs; |
| 1751 | objfile->free_psymtabs = pst; |
| 1752 | } |
| 1753 | |
| 1754 | \f |
| 1755 | |
| 1756 | /* We need to pass a couple of items to the addrmap_foreach function, |
| 1757 | so use a struct. */ |
| 1758 | |
| 1759 | struct dump_psymtab_addrmap_data |
| 1760 | { |
| 1761 | struct objfile *objfile; |
| 1762 | struct partial_symtab *psymtab; |
| 1763 | struct ui_file *outfile; |
| 1764 | |
| 1765 | /* Non-zero if the previously printed addrmap entry was for PSYMTAB. |
| 1766 | If so, we want to print the next one as well (since the next addrmap |
| 1767 | entry defines the end of the range). */ |
| 1768 | int previous_matched; |
| 1769 | }; |
| 1770 | |
| 1771 | /* Helper function for dump_psymtab_addrmap to print an addrmap entry. */ |
| 1772 | |
| 1773 | static int |
| 1774 | dump_psymtab_addrmap_1 (void *datap, CORE_ADDR start_addr, void *obj) |
| 1775 | { |
| 1776 | struct dump_psymtab_addrmap_data *data |
| 1777 | = (struct dump_psymtab_addrmap_data *) datap; |
| 1778 | struct gdbarch *gdbarch = get_objfile_arch (data->objfile); |
| 1779 | struct partial_symtab *addrmap_psymtab = (struct partial_symtab *) obj; |
| 1780 | const char *psymtab_address_or_end = NULL; |
| 1781 | |
| 1782 | QUIT; |
| 1783 | |
| 1784 | if (data->psymtab == NULL |
| 1785 | || data->psymtab == addrmap_psymtab) |
| 1786 | psymtab_address_or_end = host_address_to_string (addrmap_psymtab); |
| 1787 | else if (data->previous_matched) |
| 1788 | psymtab_address_or_end = "<ends here>"; |
| 1789 | |
| 1790 | if (data->psymtab == NULL |
| 1791 | || data->psymtab == addrmap_psymtab |
| 1792 | || data->previous_matched) |
| 1793 | { |
| 1794 | fprintf_filtered (data->outfile, " %s%s %s\n", |
| 1795 | data->psymtab != NULL ? " " : "", |
| 1796 | paddress (gdbarch, start_addr), |
| 1797 | psymtab_address_or_end); |
| 1798 | } |
| 1799 | |
| 1800 | data->previous_matched = (data->psymtab == NULL |
| 1801 | || data->psymtab == addrmap_psymtab); |
| 1802 | |
| 1803 | return 0; |
| 1804 | } |
| 1805 | |
| 1806 | /* Helper function for maintenance_print_psymbols to print the addrmap |
| 1807 | of PSYMTAB. If PSYMTAB is NULL print the entire addrmap. */ |
| 1808 | |
| 1809 | static void |
| 1810 | dump_psymtab_addrmap (struct objfile *objfile, struct partial_symtab *psymtab, |
| 1811 | struct ui_file *outfile) |
| 1812 | { |
| 1813 | struct dump_psymtab_addrmap_data addrmap_dump_data; |
| 1814 | |
| 1815 | if ((psymtab == NULL |
| 1816 | || psymtab->psymtabs_addrmap_supported) |
| 1817 | && objfile->psymtabs_addrmap != NULL) |
| 1818 | { |
| 1819 | addrmap_dump_data.objfile = objfile; |
| 1820 | addrmap_dump_data.psymtab = psymtab; |
| 1821 | addrmap_dump_data.outfile = outfile; |
| 1822 | addrmap_dump_data.previous_matched = 0; |
| 1823 | fprintf_filtered (outfile, "%sddress map:\n", |
| 1824 | psymtab == NULL ? "Entire a" : " A"); |
| 1825 | addrmap_foreach (objfile->psymtabs_addrmap, dump_psymtab_addrmap_1, |
| 1826 | &addrmap_dump_data); |
| 1827 | } |
| 1828 | } |
| 1829 | |
| 1830 | static void |
| 1831 | maintenance_print_psymbols (const char *args, int from_tty) |
| 1832 | { |
| 1833 | struct ui_file *outfile = gdb_stdout; |
| 1834 | char *address_arg = NULL, *source_arg = NULL, *objfile_arg = NULL; |
| 1835 | int i, outfile_idx, found; |
| 1836 | CORE_ADDR pc = 0; |
| 1837 | struct obj_section *section = NULL; |
| 1838 | |
| 1839 | dont_repeat (); |
| 1840 | |
| 1841 | gdb_argv argv (args); |
| 1842 | |
| 1843 | for (i = 0; argv != NULL && argv[i] != NULL; ++i) |
| 1844 | { |
| 1845 | if (strcmp (argv[i], "-pc") == 0) |
| 1846 | { |
| 1847 | if (argv[i + 1] == NULL) |
| 1848 | error (_("Missing pc value")); |
| 1849 | address_arg = argv[++i]; |
| 1850 | } |
| 1851 | else if (strcmp (argv[i], "-source") == 0) |
| 1852 | { |
| 1853 | if (argv[i + 1] == NULL) |
| 1854 | error (_("Missing source file")); |
| 1855 | source_arg = argv[++i]; |
| 1856 | } |
| 1857 | else if (strcmp (argv[i], "-objfile") == 0) |
| 1858 | { |
| 1859 | if (argv[i + 1] == NULL) |
| 1860 | error (_("Missing objfile name")); |
| 1861 | objfile_arg = argv[++i]; |
| 1862 | } |
| 1863 | else if (strcmp (argv[i], "--") == 0) |
| 1864 | { |
| 1865 | /* End of options. */ |
| 1866 | ++i; |
| 1867 | break; |
| 1868 | } |
| 1869 | else if (argv[i][0] == '-') |
| 1870 | { |
| 1871 | /* Future proofing: Don't allow OUTFILE to begin with "-". */ |
| 1872 | error (_("Unknown option: %s"), argv[i]); |
| 1873 | } |
| 1874 | else |
| 1875 | break; |
| 1876 | } |
| 1877 | outfile_idx = i; |
| 1878 | |
| 1879 | if (address_arg != NULL && source_arg != NULL) |
| 1880 | error (_("Must specify at most one of -pc and -source")); |
| 1881 | |
| 1882 | stdio_file arg_outfile; |
| 1883 | |
| 1884 | if (argv != NULL && argv[outfile_idx] != NULL) |
| 1885 | { |
| 1886 | if (argv[outfile_idx + 1] != NULL) |
| 1887 | error (_("Junk at end of command")); |
| 1888 | gdb::unique_xmalloc_ptr<char> outfile_name |
| 1889 | (tilde_expand (argv[outfile_idx])); |
| 1890 | if (!arg_outfile.open (outfile_name.get (), FOPEN_WT)) |
| 1891 | perror_with_name (outfile_name.get ()); |
| 1892 | outfile = &arg_outfile; |
| 1893 | } |
| 1894 | |
| 1895 | if (address_arg != NULL) |
| 1896 | { |
| 1897 | pc = parse_and_eval_address (address_arg); |
| 1898 | /* If we fail to find a section, that's ok, try the lookup anyway. */ |
| 1899 | section = find_pc_section (pc); |
| 1900 | } |
| 1901 | |
| 1902 | found = 0; |
| 1903 | for (objfile *objfile : all_objfiles (current_program_space)) |
| 1904 | { |
| 1905 | int printed_objfile_header = 0; |
| 1906 | int print_for_objfile = 1; |
| 1907 | |
| 1908 | QUIT; |
| 1909 | if (objfile_arg != NULL) |
| 1910 | print_for_objfile |
| 1911 | = compare_filenames_for_search (objfile_name (objfile), |
| 1912 | objfile_arg); |
| 1913 | if (!print_for_objfile) |
| 1914 | continue; |
| 1915 | |
| 1916 | if (address_arg != NULL) |
| 1917 | { |
| 1918 | struct bound_minimal_symbol msymbol = { NULL, NULL }; |
| 1919 | |
| 1920 | /* We don't assume each pc has a unique objfile (this is for |
| 1921 | debugging). */ |
| 1922 | struct partial_symtab *ps = find_pc_sect_psymtab (objfile, pc, |
| 1923 | section, msymbol); |
| 1924 | if (ps != NULL) |
| 1925 | { |
| 1926 | if (!printed_objfile_header) |
| 1927 | { |
| 1928 | outfile->printf ("\nPartial symtabs for objfile %s\n", |
| 1929 | objfile_name (objfile)); |
| 1930 | printed_objfile_header = 1; |
| 1931 | } |
| 1932 | dump_psymtab (objfile, ps, outfile); |
| 1933 | dump_psymtab_addrmap (objfile, ps, outfile); |
| 1934 | found = 1; |
| 1935 | } |
| 1936 | } |
| 1937 | else |
| 1938 | { |
| 1939 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 1940 | { |
| 1941 | int print_for_source = 0; |
| 1942 | |
| 1943 | QUIT; |
| 1944 | if (source_arg != NULL) |
| 1945 | { |
| 1946 | print_for_source |
| 1947 | = compare_filenames_for_search (ps->filename, source_arg); |
| 1948 | found = 1; |
| 1949 | } |
| 1950 | if (source_arg == NULL |
| 1951 | || print_for_source) |
| 1952 | { |
| 1953 | if (!printed_objfile_header) |
| 1954 | { |
| 1955 | outfile->printf ("\nPartial symtabs for objfile %s\n", |
| 1956 | objfile_name (objfile)); |
| 1957 | printed_objfile_header = 1; |
| 1958 | } |
| 1959 | dump_psymtab (objfile, ps, outfile); |
| 1960 | dump_psymtab_addrmap (objfile, ps, outfile); |
| 1961 | } |
| 1962 | } |
| 1963 | } |
| 1964 | |
| 1965 | /* If we're printing all the objfile's symbols dump the full addrmap. */ |
| 1966 | |
| 1967 | if (address_arg == NULL |
| 1968 | && source_arg == NULL |
| 1969 | && objfile->psymtabs_addrmap != NULL) |
| 1970 | { |
| 1971 | outfile->puts ("\n"); |
| 1972 | dump_psymtab_addrmap (objfile, NULL, outfile); |
| 1973 | } |
| 1974 | } |
| 1975 | |
| 1976 | if (!found) |
| 1977 | { |
| 1978 | if (address_arg != NULL) |
| 1979 | error (_("No partial symtab for address: %s"), address_arg); |
| 1980 | if (source_arg != NULL) |
| 1981 | error (_("No partial symtab for source file: %s"), source_arg); |
| 1982 | } |
| 1983 | } |
| 1984 | |
| 1985 | /* List all the partial symbol tables whose names match REGEXP (optional). */ |
| 1986 | |
| 1987 | static void |
| 1988 | maintenance_info_psymtabs (const char *regexp, int from_tty) |
| 1989 | { |
| 1990 | struct program_space *pspace; |
| 1991 | |
| 1992 | if (regexp) |
| 1993 | re_comp (regexp); |
| 1994 | |
| 1995 | ALL_PSPACES (pspace) |
| 1996 | for (objfile *objfile : all_objfiles (pspace)) |
| 1997 | { |
| 1998 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
| 1999 | |
| 2000 | /* We don't want to print anything for this objfile until we |
| 2001 | actually find a symtab whose name matches. */ |
| 2002 | int printed_objfile_start = 0; |
| 2003 | |
| 2004 | for (partial_symtab *psymtab : require_partial_symbols (objfile, 1)) |
| 2005 | { |
| 2006 | QUIT; |
| 2007 | |
| 2008 | if (! regexp |
| 2009 | || re_exec (psymtab->filename)) |
| 2010 | { |
| 2011 | if (! printed_objfile_start) |
| 2012 | { |
| 2013 | printf_filtered ("{ objfile %s ", objfile_name (objfile)); |
| 2014 | wrap_here (" "); |
| 2015 | printf_filtered ("((struct objfile *) %s)\n", |
| 2016 | host_address_to_string (objfile)); |
| 2017 | printed_objfile_start = 1; |
| 2018 | } |
| 2019 | |
| 2020 | printf_filtered (" { psymtab %s ", psymtab->filename); |
| 2021 | wrap_here (" "); |
| 2022 | printf_filtered ("((struct partial_symtab *) %s)\n", |
| 2023 | host_address_to_string (psymtab)); |
| 2024 | |
| 2025 | printf_filtered (" readin %s\n", |
| 2026 | psymtab->readin ? "yes" : "no"); |
| 2027 | printf_filtered (" fullname %s\n", |
| 2028 | psymtab->fullname |
| 2029 | ? psymtab->fullname : "(null)"); |
| 2030 | printf_filtered (" text addresses "); |
| 2031 | fputs_filtered (paddress (gdbarch, |
| 2032 | psymtab->text_low (objfile)), |
| 2033 | gdb_stdout); |
| 2034 | printf_filtered (" -- "); |
| 2035 | fputs_filtered (paddress (gdbarch, |
| 2036 | psymtab->text_high (objfile)), |
| 2037 | gdb_stdout); |
| 2038 | printf_filtered ("\n"); |
| 2039 | printf_filtered (" psymtabs_addrmap_supported %s\n", |
| 2040 | (psymtab->psymtabs_addrmap_supported |
| 2041 | ? "yes" : "no")); |
| 2042 | printf_filtered (" globals "); |
| 2043 | if (psymtab->n_global_syms) |
| 2044 | { |
| 2045 | auto p |
| 2046 | = &objfile->global_psymbols[psymtab->globals_offset]; |
| 2047 | |
| 2048 | printf_filtered |
| 2049 | ("(* (struct partial_symbol **) %s @ %d)\n", |
| 2050 | host_address_to_string (p), |
| 2051 | psymtab->n_global_syms); |
| 2052 | } |
| 2053 | else |
| 2054 | printf_filtered ("(none)\n"); |
| 2055 | printf_filtered (" statics "); |
| 2056 | if (psymtab->n_static_syms) |
| 2057 | { |
| 2058 | auto p |
| 2059 | = &objfile->static_psymbols[psymtab->statics_offset]; |
| 2060 | |
| 2061 | printf_filtered |
| 2062 | ("(* (struct partial_symbol **) %s @ %d)\n", |
| 2063 | host_address_to_string (p), |
| 2064 | psymtab->n_static_syms); |
| 2065 | } |
| 2066 | else |
| 2067 | printf_filtered ("(none)\n"); |
| 2068 | printf_filtered (" dependencies "); |
| 2069 | if (psymtab->number_of_dependencies) |
| 2070 | { |
| 2071 | int i; |
| 2072 | |
| 2073 | printf_filtered ("{\n"); |
| 2074 | for (i = 0; i < psymtab->number_of_dependencies; i++) |
| 2075 | { |
| 2076 | struct partial_symtab *dep = psymtab->dependencies[i]; |
| 2077 | |
| 2078 | /* Note the string concatenation there --- no |
| 2079 | comma. */ |
| 2080 | printf_filtered (" psymtab %s " |
| 2081 | "((struct partial_symtab *) %s)\n", |
| 2082 | dep->filename, |
| 2083 | host_address_to_string (dep)); |
| 2084 | } |
| 2085 | printf_filtered (" }\n"); |
| 2086 | } |
| 2087 | else |
| 2088 | printf_filtered ("(none)\n"); |
| 2089 | printf_filtered (" }\n"); |
| 2090 | } |
| 2091 | } |
| 2092 | |
| 2093 | if (printed_objfile_start) |
| 2094 | printf_filtered ("}\n"); |
| 2095 | } |
| 2096 | } |
| 2097 | |
| 2098 | /* Check consistency of currently expanded psymtabs vs symtabs. */ |
| 2099 | |
| 2100 | static void |
| 2101 | maintenance_check_psymtabs (const char *ignore, int from_tty) |
| 2102 | { |
| 2103 | struct symbol *sym; |
| 2104 | struct compunit_symtab *cust = NULL; |
| 2105 | const struct blockvector *bv; |
| 2106 | struct block *b; |
| 2107 | int length; |
| 2108 | |
| 2109 | for (objfile *objfile : all_objfiles (current_program_space)) |
| 2110 | for (partial_symtab *ps : require_partial_symbols (objfile, 1)) |
| 2111 | { |
| 2112 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
| 2113 | |
| 2114 | /* We don't call psymtab_to_symtab here because that may cause symtab |
| 2115 | expansion. When debugging a problem it helps if checkers leave |
| 2116 | things unchanged. */ |
| 2117 | cust = ps->compunit_symtab; |
| 2118 | |
| 2119 | /* First do some checks that don't require the associated symtab. */ |
| 2120 | if (ps->text_high (objfile) < ps->text_low (objfile)) |
| 2121 | { |
| 2122 | printf_filtered ("Psymtab "); |
| 2123 | puts_filtered (ps->filename); |
| 2124 | printf_filtered (" covers bad range "); |
| 2125 | fputs_filtered (paddress (gdbarch, ps->text_low (objfile)), |
| 2126 | gdb_stdout); |
| 2127 | printf_filtered (" - "); |
| 2128 | fputs_filtered (paddress (gdbarch, ps->text_high (objfile)), |
| 2129 | gdb_stdout); |
| 2130 | printf_filtered ("\n"); |
| 2131 | continue; |
| 2132 | } |
| 2133 | |
| 2134 | /* Now do checks requiring the associated symtab. */ |
| 2135 | if (cust == NULL) |
| 2136 | continue; |
| 2137 | bv = COMPUNIT_BLOCKVECTOR (cust); |
| 2138 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
| 2139 | partial_symbol **psym = &objfile->static_psymbols[ps->statics_offset]; |
| 2140 | length = ps->n_static_syms; |
| 2141 | while (length--) |
| 2142 | { |
| 2143 | sym = block_lookup_symbol (b, symbol_search_name (*psym), |
| 2144 | symbol_name_match_type::SEARCH_NAME, |
| 2145 | (*psym)->domain); |
| 2146 | if (!sym) |
| 2147 | { |
| 2148 | printf_filtered ("Static symbol `"); |
| 2149 | puts_filtered ((*psym)->name); |
| 2150 | printf_filtered ("' only found in "); |
| 2151 | puts_filtered (ps->filename); |
| 2152 | printf_filtered (" psymtab\n"); |
| 2153 | } |
| 2154 | psym++; |
| 2155 | } |
| 2156 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
| 2157 | psym = &objfile->global_psymbols[ps->globals_offset]; |
| 2158 | length = ps->n_global_syms; |
| 2159 | while (length--) |
| 2160 | { |
| 2161 | sym = block_lookup_symbol (b, symbol_search_name (*psym), |
| 2162 | symbol_name_match_type::SEARCH_NAME, |
| 2163 | (*psym)->domain); |
| 2164 | if (!sym) |
| 2165 | { |
| 2166 | printf_filtered ("Global symbol `"); |
| 2167 | puts_filtered ((*psym)->name); |
| 2168 | printf_filtered ("' only found in "); |
| 2169 | puts_filtered (ps->filename); |
| 2170 | printf_filtered (" psymtab\n"); |
| 2171 | } |
| 2172 | psym++; |
| 2173 | } |
| 2174 | if (ps->raw_text_high () != 0 |
| 2175 | && (ps->text_low (objfile) < BLOCK_START (b) |
| 2176 | || ps->text_high (objfile) > BLOCK_END (b))) |
| 2177 | { |
| 2178 | printf_filtered ("Psymtab "); |
| 2179 | puts_filtered (ps->filename); |
| 2180 | printf_filtered (" covers "); |
| 2181 | fputs_filtered (paddress (gdbarch, ps->text_low (objfile)), |
| 2182 | gdb_stdout); |
| 2183 | printf_filtered (" - "); |
| 2184 | fputs_filtered (paddress (gdbarch, ps->text_high (objfile)), |
| 2185 | gdb_stdout); |
| 2186 | printf_filtered (" but symtab covers only "); |
| 2187 | fputs_filtered (paddress (gdbarch, BLOCK_START (b)), gdb_stdout); |
| 2188 | printf_filtered (" - "); |
| 2189 | fputs_filtered (paddress (gdbarch, BLOCK_END (b)), gdb_stdout); |
| 2190 | printf_filtered ("\n"); |
| 2191 | } |
| 2192 | } |
| 2193 | } |
| 2194 | |
| 2195 | void |
| 2196 | _initialize_psymtab (void) |
| 2197 | { |
| 2198 | add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, _("\ |
| 2199 | Print dump of current partial symbol definitions.\n\ |
| 2200 | Usage: mt print psymbols [-objfile OBJFILE] [-pc ADDRESS] [--] [OUTFILE]\n\ |
| 2201 | mt print psymbols [-objfile OBJFILE] [-source SOURCE] [--] [OUTFILE]\n\ |
| 2202 | Entries in the partial symbol table are dumped to file OUTFILE,\n\ |
| 2203 | or the terminal if OUTFILE is unspecified.\n\ |
| 2204 | If ADDRESS is provided, dump only the file for that address.\n\ |
| 2205 | If SOURCE is provided, dump only that file's symbols.\n\ |
| 2206 | If OBJFILE is provided, dump only that file's minimal symbols."), |
| 2207 | &maintenanceprintlist); |
| 2208 | |
| 2209 | add_cmd ("psymtabs", class_maintenance, maintenance_info_psymtabs, _("\ |
| 2210 | List the partial symbol tables for all object files.\n\ |
| 2211 | This does not include information about individual partial symbols,\n\ |
| 2212 | just the symbol table structures themselves."), |
| 2213 | &maintenanceinfolist); |
| 2214 | |
| 2215 | add_cmd ("check-psymtabs", class_maintenance, maintenance_check_psymtabs, |
| 2216 | _("\ |
| 2217 | Check consistency of currently expanded psymtabs versus symtabs."), |
| 2218 | &maintenancelist); |
| 2219 | } |