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