1 /* Partial symbol tables.
3 Copyright (C) 2009-2021 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
25 #include "filenames.h"
31 #include "readline/tilde.h"
32 #include "gdb_regex.h"
33 #include "dictionary.h"
35 #include "cp-support.h"
40 static struct partial_symbol *lookup_partial_symbol (struct objfile *,
41 struct partial_symtab *,
42 const lookup_name_info &,
46 static const char *psymtab_to_fullname (struct partial_symtab *ps);
48 static struct partial_symbol *find_pc_sect_psymbol (struct objfile *,
49 struct partial_symtab *,
51 struct obj_section *);
53 static struct compunit_symtab *psymtab_to_symtab (struct objfile *objfile,
54 struct partial_symtab *pst);
56 psymtab_storage::~psymtab_storage ()
58 partial_symtab *iter = psymtabs;
59 while (iter != nullptr)
61 partial_symtab *next = iter->next;
70 psymtab_storage::install_psymtab (partial_symtab *pst)
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
83 psymtab_storage::partial_symtab_range
84 psymbol_functions::require_partial_symbols (struct objfile *objfile)
86 objfile->require_partial_symbols (true);
87 return m_partial_symtabs->range ();
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. */
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)
99 struct partial_symtab *tpst;
100 struct partial_symtab *best_pst = pst;
101 CORE_ADDR best_addr = pst->text_low (objfile);
103 gdb_assert (!pst->psymtabs_addrmap_supported);
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. */
113 if (msymbol.minsym == NULL)
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)
125 if (pc >= tpst->text_low (objfile) && pc < tpst->text_high (objfile))
127 struct partial_symbol *p;
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);
136 && (p->address (objfile) == BMSYMBOL_VALUE_ADDRESS (msymbol)))
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). */
144 this_addr = p->address (objfile);
146 this_addr = tpst->text_low (objfile);
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
158 if (this_addr > best_addr)
160 best_addr = this_addr;
168 /* See psympriv.h. */
170 struct partial_symtab *
171 psymbol_functions::find_pc_sect_psymtab (struct objfile *objfile,
173 struct obj_section *section,
174 struct bound_minimal_symbol msymbol)
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.
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. */
188 if (m_partial_symtabs->psymtabs != NULL
189 && m_partial_symtabs->psymtabs_addrmap != NULL)
191 CORE_ADDR baseaddr = objfile->text_section_offset ();
193 struct partial_symtab *pst
194 = ((struct partial_symtab *)
195 addrmap_find (m_partial_symtabs->psymtabs_addrmap,
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)
204 struct partial_symbol *p;
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);
212 || (p->address (objfile)
213 != BMSYMBOL_VALUE_ADDRESS (msymbol)))
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
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
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. */
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))
242 struct partial_symtab *best_pst;
244 best_pst = find_pc_sect_psymtab_closer (objfile, pc, section, pst,
246 if (best_pst != NULL)
253 /* Psymtab version of find_pc_sect_compunit_symtab. See its definition in
254 the definition of quick_symbol_functions in symfile.h. */
256 struct compunit_symtab *
257 psymbol_functions::find_pc_sect_compunit_symtab
258 (struct objfile *objfile,
259 struct bound_minimal_symbol msymbol,
261 struct obj_section *section,
264 struct partial_symtab *ps = find_pc_sect_psymtab (objfile,
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. */
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);
282 /* Find which partial symbol within a psymtab matches PC and SECTION.
283 Return NULL if none. */
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)
290 struct partial_symbol *best = NULL;
292 const CORE_ADDR textlow = psymtab->text_low (objfile);
294 gdb_assert (psymtab != NULL);
296 /* Cope with programs that start at address 0. */
297 best_pc = (textlow != 0) ? textlow - 1 : 0;
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)
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)))
311 if (section != NULL) /* Match on a specific section. */
313 if (!matching_obj_sections (p->obj_section (objfile),
317 best_pc = p->address (objfile);
322 for (partial_symbol *p : psymtab->static_psymbols)
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)))
331 if (section != NULL) /* Match on a specific section. */
333 if (!matching_obj_sections (p->obj_section (objfile),
337 best_pc = p->address (objfile);
345 /* Psymtab version of lookup_global_symbol_language. See its definition in
346 the definition of quick_symbol_functions in symfile.h. */
349 psymbol_functions::lookup_global_symbol_language (struct objfile *objfile,
352 bool *symbol_found_p)
354 *symbol_found_p = false;
355 if (objfile->sf == NULL)
356 return language_unknown;
358 lookup_name_info lookup_name (name, symbol_name_match_type::FULL);
360 for (partial_symtab *ps : require_partial_symbols (objfile))
362 struct partial_symbol *psym;
363 if (ps->readin_p (objfile))
366 psym = lookup_partial_symbol (objfile, ps, lookup_name, 1, domain);
369 *symbol_found_p = true;
370 return psym->ginfo.language ();
374 return language_unknown;
377 /* Returns true if PSYM matches LOOKUP_NAME. */
380 psymbol_name_matches (partial_symbol *psym,
381 const lookup_name_info &lookup_name)
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);
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. */
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)
403 struct partial_symbol **start, **psym;
404 struct partial_symbol **top, **real_top, **bottom, **center;
406 ? pst->global_psymbols.size ()
407 : pst->static_psymbols.size ());
408 int do_linear_search = 1;
414 &pst->global_psymbols[0] :
415 &pst->static_psymbols[0]);
417 if (global && ordered_compare) /* Can use a binary search. */
419 do_linear_search = 0;
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
428 top = start + length - 1;
432 center = bottom + (top - bottom) / 2;
433 gdb_assert (center < top);
435 enum language lang = (*center)->ginfo.language ();
436 const char *lang_ln = name.language_lookup_name (lang);
438 if (ordered_compare ((*center)->ginfo.search_name (),
444 gdb_assert (top == bottom);
446 while (top <= real_top
447 && psymbol_name_matches (*top, name))
449 if (symbol_matches_domain ((*top)->ginfo.language (),
450 (*top)->domain, domain))
456 /* Can't use a binary search or else we found during the binary search that
457 we should also do a linear search. */
459 if (do_linear_search)
461 for (psym = start; psym < start + length; psym++)
463 if (symbol_matches_domain ((*psym)->ginfo.language (),
464 (*psym)->domain, domain)
465 && psymbol_name_matches (*psym, name))
473 /* Look, in partial_symtab PST, for symbol whose natural name is
474 LOOKUP_NAME. Check the global symbols if GLOBAL, the static
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)
483 struct partial_symbol **start, **psym;
484 struct partial_symbol **top, **real_top, **bottom, **center;
486 ? pst->global_psymbols.size ()
487 : pst->static_psymbols.size ());
488 int do_linear_search = 1;
494 &pst->global_psymbols[0] :
495 &pst->static_psymbols[0]);
497 if (global) /* This means we can use a binary search. */
499 do_linear_search = 0;
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
508 top = start + length - 1;
512 center = bottom + (top - bottom) / 2;
514 gdb_assert (center < top);
516 if (strcmp_iw_ordered ((*center)->ginfo.search_name (),
517 lookup_name.c_str ()) >= 0)
527 gdb_assert (top == bottom);
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,
535 /* Fixup to have a symbol which matches SYMBOL_MATCHES_SEARCH_NAME. */
538 while (top <= real_top && symbol_matches_search_name (&(*top)->ginfo,
541 if (symbol_matches_domain ((*top)->ginfo.language (),
542 (*top)->domain, domain))
548 /* Can't use a binary search or else we found during the binary search that
549 we should also do a linear search. */
551 if (do_linear_search)
553 for (psym = start; psym < start + length; psym++)
555 if (symbol_matches_domain ((*psym)->ginfo.language (),
556 (*psym)->domain, domain)
557 && symbol_matches_search_name (&(*psym)->ginfo, lookup_name))
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. */
571 static struct compunit_symtab *
572 psymtab_to_symtab (struct objfile *objfile, struct partial_symtab *pst)
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)
579 /* If it's been looked up before, return it. */
580 if (pst->get_compunit_symtab (objfile))
581 return pst->get_compunit_symtab (objfile);
583 /* If it has not yet been read in, read it. */
584 if (!pst->readin_p (objfile))
586 scoped_restore decrementer = increment_reading_symtab ();
590 printf_filtered (_("Reading in symbols for %s...\n"),
592 gdb_flush (gdb_stdout);
595 pst->read_symtab (objfile);
598 return pst->get_compunit_symtab (objfile);
601 /* Psymtab version of find_last_source_symtab. See its definition in
602 the definition of quick_symbol_functions in symfile.h. */
605 psymbol_functions::find_last_source_symtab (struct objfile *ofp)
607 struct partial_symtab *cs_pst = NULL;
609 for (partial_symtab *ps : require_partial_symbols (ofp))
611 const char *name = ps->filename;
612 int len = strlen (name);
614 if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0
615 || strcmp (name, "<<C++-namespaces>>") == 0)))
621 if (cs_pst->readin_p (ofp))
623 internal_error (__FILE__, __LINE__,
624 _("select_source_symtab: "
625 "readin pst found and no symtabs."));
629 struct compunit_symtab *cust = psymtab_to_symtab (ofp, cs_pst);
633 return compunit_primary_filetab (cust);
639 /* Psymtab version of forget_cached_source_info. See its definition in
640 the definition of quick_symbol_functions in symfile.h. */
643 psymbol_functions::forget_cached_source_info (struct objfile *objfile)
645 for (partial_symtab *pst : require_partial_symbols (objfile))
647 if (pst->fullname != NULL)
649 xfree (pst->fullname);
650 pst->fullname = NULL;
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)
660 fprintf_filtered (outfile, " %s partial symbols:\n", what);
661 for (partial_symbol *p : symbols)
664 fprintf_filtered (outfile, " `%s'", p->ginfo.linkage_name ());
665 if (p->ginfo.demangled_name () != NULL)
667 fprintf_filtered (outfile, " `%s'",
668 p->ginfo.demangled_name ());
670 fputs_filtered (", ", outfile);
674 fputs_filtered ("undefined domain, ", outfile);
677 /* This is the usual thing -- don't print it. */
680 fputs_filtered ("struct domain, ", outfile);
683 fputs_filtered ("module domain, ", outfile);
686 fputs_filtered ("label domain, ", outfile);
688 case COMMON_BLOCK_DOMAIN:
689 fputs_filtered ("common block domain, ", outfile);
692 fputs_filtered ("<invalid domain>, ", outfile);
698 fputs_filtered ("undefined", outfile);
701 fputs_filtered ("constant int", outfile);
704 fputs_filtered ("static", outfile);
707 fputs_filtered ("register", outfile);
710 fputs_filtered ("pass by value", outfile);
713 fputs_filtered ("pass by reference", outfile);
715 case LOC_REGPARM_ADDR:
716 fputs_filtered ("register address parameter", outfile);
719 fputs_filtered ("stack parameter", outfile);
722 fputs_filtered ("type", outfile);
725 fputs_filtered ("label", outfile);
728 fputs_filtered ("function", outfile);
730 case LOC_CONST_BYTES:
731 fputs_filtered ("constant bytes", outfile);
734 fputs_filtered ("unresolved", outfile);
736 case LOC_OPTIMIZED_OUT:
737 fputs_filtered ("optimized out", outfile);
740 fputs_filtered ("computed at runtime", outfile);
743 fputs_filtered ("<invalid location>", outfile);
746 fputs_filtered (", ", outfile);
747 fputs_filtered (paddress (gdbarch, p->unrelocated_address ()), outfile);
748 fprintf_filtered (outfile, "\n");
753 dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab,
754 struct ui_file *outfile)
756 struct gdbarch *gdbarch = objfile->arch ();
759 if (psymtab->anonymous)
761 fprintf_filtered (outfile, "\nAnonymous partial symtab (%s) ",
766 fprintf_filtered (outfile, "\nPartial symtab for source file %s ",
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");
777 if (psymtab->readin_p (objfile))
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");
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++)
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);
801 if (psymtab->user != NULL)
803 fprintf_filtered (outfile, " Shared partial symtab with user ");
804 gdb_print_host_address (psymtab->user, outfile);
805 fprintf_filtered (outfile, "\n");
807 if (!psymtab->global_psymbols.empty ())
809 print_partial_symbols
810 (gdbarch, objfile, psymtab->global_psymbols,
813 if (!psymtab->static_psymbols.empty ())
815 print_partial_symbols
816 (gdbarch, objfile, psymtab->static_psymbols,
819 fprintf_filtered (outfile, "\n");
822 /* Count the number of partial symbols in OBJFILE. */
825 psymbol_functions::count_psyms ()
828 for (partial_symtab *pst : m_partial_symtabs->range ())
830 count += pst->global_psymbols.size ();
831 count += pst->static_psymbols.size ();
836 /* Psymtab version of print_stats. See its definition in
837 the definition of quick_symbol_functions in symfile.h. */
840 psymbol_functions::print_stats (struct objfile *objfile, bool print_bcache)
846 int n_psyms = count_psyms ();
848 printf_filtered (_(" Number of \"partial\" symbols read: %d\n"),
852 for (partial_symtab *ps : require_partial_symbols (objfile))
854 if (!ps->readin_p (objfile))
857 printf_filtered (_(" Number of psym tables (not yet expanded): %d\n"),
859 printf_filtered (_(" Total memory used for psymbol cache: %d\n"),
860 m_partial_symtabs->psymbol_cache.memory_used ());
864 printf_filtered (_("Psymbol byte cache statistics:\n"));
865 m_partial_symtabs->psymbol_cache.print_statistics
866 ("partial symbol cache");
870 /* Psymtab version of dump. See its definition in
871 the definition of quick_symbol_functions in symfile.h. */
874 psymbol_functions::dump (struct objfile *objfile)
876 struct partial_symtab *psymtab;
878 if (m_partial_symtabs->psymtabs)
880 printf_filtered ("Psymtabs:\n");
881 for (psymtab = m_partial_symtabs->psymtabs;
883 psymtab = psymtab->next)
885 printf_filtered ("%s at ",
887 gdb_print_host_address (psymtab, gdb_stdout);
888 printf_filtered ("\n");
890 printf_filtered ("\n\n");
894 /* Psymtab version of expand_all_symtabs. See its definition in
895 the definition of quick_symbol_functions in symfile.h. */
898 psymbol_functions::expand_all_symtabs (struct objfile *objfile)
900 for (partial_symtab *psymtab : require_partial_symbols (objfile))
901 psymtab_to_symtab (objfile, psymtab);
904 /* Psymtab version of map_symbol_filenames. See its definition in
905 the definition of quick_symbol_functions in symfile.h. */
908 psymbol_functions::map_symbol_filenames
909 (struct objfile *objfile,
910 gdb::function_view<symbol_filename_ftype> fun,
913 for (partial_symtab *ps : require_partial_symbols (objfile))
915 const char *fullname;
917 if (ps->readin_p (objfile))
920 /* We can skip shared psymtabs here, because any file name will be
921 attached to the unshared psymtab. */
922 if (ps->user != NULL)
925 /* Anonymous psymtabs don't have a file name. */
931 fullname = psymtab_to_fullname (ps);
934 fun (ps->filename, fullname);
938 /* Finds the fullname that a partial_symtab represents.
940 If this functions finds the fullname, it will save it in ps->fullname
941 and it will also return the value.
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. */
947 psymtab_to_fullname (struct partial_symtab *ps)
949 gdb_assert (!ps->anonymous);
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)
956 gdb::unique_xmalloc_ptr<char> fullname;
957 scoped_fd fd = find_and_open_source (ps->filename, ps->dirname,
959 ps->fullname = fullname.release ();
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. */
966 if (ps->dirname == NULL || IS_ABSOLUTE_PATH (ps->filename))
967 fullname.reset (xstrdup (ps->filename));
969 fullname.reset (concat (ps->dirname, SLASH_STRING,
970 ps->filename, (char *) NULL));
972 ps->fullname = rewrite_source_path (fullname.get ()).release ();
973 if (ps->fullname == NULL)
974 ps->fullname = fullname.release ();
981 /* Psymtab version of expand_matching_symbols. See its definition in
982 the definition of quick_symbol_functions in symfile.h. */
985 psymbol_functions::expand_matching_symbols
986 (struct objfile *objfile,
987 const lookup_name_info &name, domain_enum domain,
989 symbol_compare_ftype *ordered_compare)
991 for (partial_symtab *ps : require_partial_symbols (objfile))
994 if (!ps->readin_p (objfile)
995 && match_partial_symbol (objfile, ps, global, name, domain,
997 psymtab_to_symtab (objfile, ps);
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. */
1007 recursively_search_psymtabs
1008 (struct partial_symtab *ps,
1009 struct objfile *objfile,
1010 block_search_flags search_flags,
1012 enum search_domain search,
1013 const lookup_name_info &lookup_name,
1014 gdb::function_view<expand_symtabs_symbol_matcher_ftype> sym_matcher)
1017 enum psymtab_search_status result = PST_SEARCHED_AND_NOT_FOUND;
1020 if (ps->searched_flag != PST_NOT_SEARCHED)
1021 return ps->searched_flag == PST_SEARCHED_AND_FOUND;
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)
1029 /* Skip non-shared dependencies, these are handled elsewhere. */
1030 if (ps->dependencies[i]->user == NULL)
1033 r = recursively_search_psymtabs (ps->dependencies[i],
1034 objfile, search_flags, domain, search,
1035 lookup_name, sym_matcher);
1038 ps->searched_flag = PST_SEARCHED_AND_FOUND;
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;
1049 /* Go through all of the symbols stored in a partial
1050 symtab in one loop. */
1051 partial_symbol **psym = ps->global_psymbols.data ();
1053 if ((search_flags & SEARCH_GLOBAL_BLOCK) == 0)
1055 if (ps->static_psymbols.empty ())
1059 psym = ps->static_psymbols.data ();
1068 if (bound == gbound && !ps->static_psymbols.empty ()
1069 && (search_flags & SEARCH_STATIC_BLOCK) != 0)
1071 psym = ps->static_psymbols.data ();
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 ())))
1099 /* Found a match, so notify our caller. */
1100 result = PST_SEARCHED_AND_FOUND;
1107 ps->searched_flag = result;
1108 return result == PST_SEARCHED_AND_FOUND;
1111 /* Psymtab version of expand_symtabs_matching. See its definition in
1112 the definition of quick_symbol_functions in symfile.h. */
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,
1123 enum search_domain search)
1125 /* Clear the search flags. */
1126 for (partial_symtab *ps : require_partial_symbols (objfile))
1127 ps->searched_flag = PST_NOT_SEARCHED;
1129 gdb::optional<lookup_name_info> psym_lookup_name;
1130 if (lookup_name != nullptr)
1131 psym_lookup_name = lookup_name->make_ignore_params ();
1133 for (partial_symtab *ps : m_partial_symtabs->range ())
1137 if (ps->readin_p (objfile))
1147 match = file_matcher (ps->filename, false);
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);
1160 if ((symbol_matcher == NULL && lookup_name == NULL)
1161 || recursively_search_psymtabs (ps, objfile, search_flags,
1166 struct compunit_symtab *symtab =
1167 psymtab_to_symtab (objfile, ps);
1169 if (expansion_notify != NULL)
1170 if (!expansion_notify (symtab))
1178 /* Psymtab version of has_symbols. See its definition in
1179 the definition of quick_symbol_functions in symfile.h. */
1182 psymbol_functions::has_symbols (struct objfile *objfile)
1184 return m_partial_symtabs->psymtabs != NULL;
1187 /* Helper function for psym_find_compunit_symtab_by_address that fills
1188 in m_psymbol_map for a given range of psymbols. */
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)
1197 for (partial_symbol *psym : symbols)
1199 if (psym->aclass == LOC_STATIC)
1201 CORE_ADDR addr = psym->address (objfile);
1202 if (seen_addrs->find (addr) == seen_addrs->end ())
1204 seen_addrs->insert (addr);
1205 m_psymbol_map.emplace_back (addr, psymtab);
1211 /* See find_compunit_symtab_by_address in quick_symbol_functions, in
1215 psymbol_functions::find_compunit_symtab_by_address (struct objfile *objfile,
1218 if (m_psymbol_map.empty ())
1220 std::set<CORE_ADDR> seen_addrs;
1222 for (partial_symtab *pst : require_partial_symbols (objfile))
1224 fill_psymbol_map (objfile, pst,
1226 pst->global_psymbols);
1227 fill_psymbol_map (objfile, pst,
1229 pst->static_psymbols);
1232 m_psymbol_map.shrink_to_fit ();
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)
1238 return a.first < b.first;
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,
1250 if (iter == m_psymbol_map.end () || iter->first != address)
1253 return psymtab_to_symtab (objfile, iter->second);
1258 /* Partially fill a partial symtab. It will be completely filled at
1259 the end of the symbol list. */
1261 partial_symtab::partial_symtab (const char *filename,
1262 psymtab_storage *partial_symtabs,
1263 objfile_per_bfd_storage *objfile_per_bfd,
1265 : partial_symtab (filename, partial_symtabs, objfile_per_bfd)
1267 set_text_low (textlow);
1268 set_text_high (raw_text_low ()); /* default */
1271 /* Perform "finishing up" operations of a partial symtab. */
1274 partial_symtab::end ()
1276 global_psymbols.shrink_to_fit ();
1277 static_psymbols.shrink_to_fit ();
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)
1284 return strcmp_iw_ordered (s1->ginfo.search_name (),
1285 s2->ginfo.search_name ()) < 0;
1289 /* See psymtab.h. */
1292 psymbol_bcache::hash (const void *addr, int length)
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;
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);
1311 /* See psymtab.h. */
1314 psymbol_bcache::compare (const void *addr1, const void *addr2, int length)
1316 struct partial_symbol *sym1 = (struct partial_symbol *) addr1;
1317 struct partial_symbol *sym2 = (struct partial_symbol *) addr2;
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 ());
1330 /* See psympriv.h. */
1333 partial_symtab::add_psymbol (const partial_symbol &psymbol,
1334 psymbol_placement where,
1335 psymtab_storage *partial_symtabs,
1336 struct objfile *objfile)
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));
1346 /* Do not duplicate global partial symbols. */
1347 if (where == psymbol_placement::GLOBAL && !added)
1350 /* Save pointer to partial symbol in psymtab, growing symtab if needed. */
1351 std::vector<partial_symbol *> &list
1352 = (where == psymbol_placement::STATIC
1355 list.push_back (psym);
1358 /* See psympriv.h. */
1361 partial_symtab::add_psymbol (gdb::string_view name, bool copy_name,
1363 enum address_class theclass,
1365 psymbol_placement where,
1367 enum language language,
1368 psymtab_storage *partial_symtabs,
1369 struct objfile *objfile)
1371 struct partial_symbol psymbol;
1372 memset (&psymbol, 0, sizeof (psymbol));
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);
1381 add_psymbol (psymbol, where, partial_symtabs, objfile);
1384 /* See psympriv.h. */
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),
1393 partial_symtabs->install_psymtab (this);
1395 filename = objfile_per_bfd->intern (filename_);
1397 if (symtab_create_debug)
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 ());
1405 if (last_bfd_name.empty () || last_bfd_name != this_bfd_name)
1407 last_bfd_name = this_bfd_name;
1408 fprintf_filtered (gdb_stdlog,
1409 "Creating one or more psymtabs for %s ...\n",
1412 fprintf_filtered (gdb_stdlog,
1413 "Created psymtab %s for module %s.\n",
1414 host_address_to_string (this), filename);
1418 /* See psympriv.h. */
1421 partial_symtab::expand_dependencies (struct objfile *objfile)
1423 for (int i = 0; i < number_of_dependencies; ++i)
1425 if (!dependencies[i]->readin_p (objfile)
1426 && dependencies[i]->user == NULL)
1428 /* Inform about additional files to be read in. */
1431 fputs_filtered (" ", gdb_stdout);
1433 fputs_filtered ("and ", gdb_stdout);
1435 printf_filtered ("%s...", dependencies[i]->filename);
1436 wrap_here (""); /* Flush output */
1437 gdb_flush (gdb_stdout);
1439 dependencies[i]->expand_psymtab (objfile);
1446 psymtab_storage::discard_psymtab (struct partial_symtab *pst)
1448 struct partial_symtab **prev_pst;
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. */
1457 /* First, snip it out of the psymtab chain. */
1459 prev_pst = &psymtabs;
1460 while ((*prev_pst) != pst)
1461 prev_pst = &((*prev_pst)->next);
1462 (*prev_pst) = pst->next;
1468 /* We need to pass a couple of items to the addrmap_foreach function,
1471 struct dump_psymtab_addrmap_data
1473 struct objfile *objfile;
1474 struct partial_symtab *psymtab;
1475 struct ui_file *outfile;
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;
1483 /* Helper function for dump_psymtab_addrmap to print an addrmap entry. */
1486 dump_psymtab_addrmap_1 (void *datap, CORE_ADDR start_addr, void *obj)
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;
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>";
1502 if (data->psymtab == NULL
1503 || data->psymtab == addrmap_psymtab
1504 || data->previous_matched)
1506 fprintf_filtered (data->outfile, " %s%s %s\n",
1507 data->psymtab != NULL ? " " : "",
1508 paddress (gdbarch, start_addr),
1509 psymtab_address_or_end);
1512 data->previous_matched = (data->psymtab == NULL
1513 || data->psymtab == addrmap_psymtab);
1518 /* Helper function for maintenance_print_psymbols to print the addrmap
1519 of PSYMTAB. If PSYMTAB is NULL print the entire addrmap. */
1522 dump_psymtab_addrmap (struct objfile *objfile,
1523 psymtab_storage *partial_symtabs,
1524 struct partial_symtab *psymtab,
1525 struct ui_file *outfile)
1527 struct dump_psymtab_addrmap_data addrmap_dump_data;
1529 if ((psymtab == NULL
1530 || psymtab->psymtabs_addrmap_supported)
1531 && partial_symtabs->psymtabs_addrmap != NULL)
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);
1545 maintenance_print_psymbols (const char *args, int from_tty)
1547 struct ui_file *outfile = gdb_stdout;
1548 char *address_arg = NULL, *source_arg = NULL, *objfile_arg = NULL;
1549 int i, outfile_idx, found;
1551 struct obj_section *section = NULL;
1555 gdb_argv argv (args);
1557 for (i = 0; argv != NULL && argv[i] != NULL; ++i)
1559 if (strcmp (argv[i], "-pc") == 0)
1561 if (argv[i + 1] == NULL)
1562 error (_("Missing pc value"));
1563 address_arg = argv[++i];
1565 else if (strcmp (argv[i], "-source") == 0)
1567 if (argv[i + 1] == NULL)
1568 error (_("Missing source file"));
1569 source_arg = argv[++i];
1571 else if (strcmp (argv[i], "-objfile") == 0)
1573 if (argv[i + 1] == NULL)
1574 error (_("Missing objfile name"));
1575 objfile_arg = argv[++i];
1577 else if (strcmp (argv[i], "--") == 0)
1579 /* End of options. */
1583 else if (argv[i][0] == '-')
1585 /* Future proofing: Don't allow OUTFILE to begin with "-". */
1586 error (_("Unknown option: %s"), argv[i]);
1593 if (address_arg != NULL && source_arg != NULL)
1594 error (_("Must specify at most one of -pc and -source"));
1596 stdio_file arg_outfile;
1598 if (argv != NULL && argv[outfile_idx] != NULL)
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;
1609 if (address_arg != NULL)
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);
1617 for (objfile *objfile : current_program_space->objfiles ())
1619 int printed_objfile_header = 0;
1620 int print_for_objfile = 1;
1623 if (objfile_arg != NULL)
1625 = compare_filenames_for_search (objfile_name (objfile),
1627 if (!print_for_objfile)
1630 for (const auto &iter : objfile->qf)
1632 psymbol_functions *psf
1633 = dynamic_cast<psymbol_functions *> (iter.get ());
1637 psymtab_storage *partial_symtabs
1638 = psf->get_partial_symtabs ().get ();
1640 if (address_arg != NULL)
1642 struct bound_minimal_symbol msymbol = { NULL, NULL };
1644 /* We don't assume each pc has a unique objfile (this is for
1646 struct partial_symtab *ps
1647 = psf->find_pc_sect_psymtab (objfile, pc, section, msymbol);
1650 if (!printed_objfile_header)
1652 outfile->printf ("\nPartial symtabs for objfile %s\n",
1653 objfile_name (objfile));
1654 printed_objfile_header = 1;
1656 dump_psymtab (objfile, ps, outfile);
1657 dump_psymtab_addrmap (objfile, partial_symtabs, ps, outfile);
1663 for (partial_symtab *ps : psf->require_partial_symbols (objfile))
1665 int print_for_source = 0;
1668 if (source_arg != NULL)
1671 = compare_filenames_for_search (ps->filename, source_arg);
1674 if (source_arg == NULL
1675 || print_for_source)
1677 if (!printed_objfile_header)
1679 outfile->printf ("\nPartial symtabs for objfile %s\n",
1680 objfile_name (objfile));
1681 printed_objfile_header = 1;
1683 dump_psymtab (objfile, ps, outfile);
1684 dump_psymtab_addrmap (objfile, partial_symtabs, ps,
1690 /* If we're printing all the objfile's symbols dump the full addrmap. */
1692 if (address_arg == NULL
1693 && source_arg == NULL
1694 && partial_symtabs->psymtabs_addrmap != NULL)
1696 outfile->puts ("\n");
1697 dump_psymtab_addrmap (objfile, partial_symtabs, NULL, outfile);
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);
1711 /* List all the partial symbol tables whose names match REGEXP (optional). */
1714 maintenance_info_psymtabs (const char *regexp, int from_tty)
1719 for (struct program_space *pspace : program_spaces)
1720 for (objfile *objfile : pspace->objfiles ())
1722 struct gdbarch *gdbarch = objfile->arch ();
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;
1728 for (const auto &iter : objfile->qf)
1730 psymbol_functions *psf
1731 = dynamic_cast<psymbol_functions *> (iter.get ());
1734 for (partial_symtab *psymtab : psf->require_partial_symbols (objfile))
1739 || re_exec (psymtab->filename))
1741 if (! printed_objfile_start)
1743 printf_filtered ("{ objfile %s ", objfile_name (objfile));
1745 printf_filtered ("((struct objfile *) %s)\n",
1746 host_address_to_string (objfile));
1747 printed_objfile_start = 1;
1750 printf_filtered (" { psymtab %s ", psymtab->filename);
1752 printf_filtered ("((struct partial_symtab *) %s)\n",
1753 host_address_to_string (psymtab));
1755 printf_filtered (" readin %s\n",
1756 psymtab->readin_p (objfile) ? "yes" : "no");
1757 printf_filtered (" fullname %s\n",
1759 ? psymtab->fullname : "(null)");
1760 printf_filtered (" text addresses ");
1761 fputs_filtered (paddress (gdbarch,
1762 psymtab->text_low (objfile)),
1764 printf_filtered (" -- ");
1765 fputs_filtered (paddress (gdbarch,
1766 psymtab->text_high (objfile)),
1768 printf_filtered ("\n");
1769 printf_filtered (" psymtabs_addrmap_supported %s\n",
1770 (psymtab->psymtabs_addrmap_supported
1772 printf_filtered (" globals ");
1773 if (!psymtab->global_psymbols.empty ())
1775 ("(* (struct partial_symbol **) %s @ %d)\n",
1776 host_address_to_string (psymtab->global_psymbols.data ()),
1777 (int) psymtab->global_psymbols.size ());
1779 printf_filtered ("(none)\n");
1780 printf_filtered (" statics ");
1781 if (!psymtab->static_psymbols.empty ())
1783 ("(* (struct partial_symbol **) %s @ %d)\n",
1784 host_address_to_string (psymtab->static_psymbols.data ()),
1785 (int) psymtab->static_psymbols.size ());
1787 printf_filtered ("(none)\n");
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)
1798 printf_filtered ("{\n");
1799 for (i = 0; i < psymtab->number_of_dependencies; i++)
1801 struct partial_symtab *dep = psymtab->dependencies[i];
1803 /* Note the string concatenation there --- no
1805 printf_filtered (" psymtab %s "
1806 "((struct partial_symtab *) %s)\n",
1808 host_address_to_string (dep));
1810 printf_filtered (" }\n");
1813 printf_filtered ("(none)\n");
1814 printf_filtered (" }\n");
1819 if (printed_objfile_start)
1820 printf_filtered ("}\n");
1824 /* Check consistency of currently expanded psymtabs vs symtabs. */
1827 maintenance_check_psymtabs (const char *ignore, int from_tty)
1830 struct compunit_symtab *cust = NULL;
1831 const struct blockvector *bv;
1832 const struct block *b;
1834 for (objfile *objfile : current_program_space->objfiles ())
1836 for (const auto &iter : objfile->qf)
1838 psymbol_functions *psf
1839 = dynamic_cast<psymbol_functions *> (iter.get ());
1843 for (partial_symtab *ps : psf->require_partial_symbols (objfile))
1845 struct gdbarch *gdbarch = objfile->arch ();
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);
1852 /* First do some checks that don't require the associated symtab. */
1853 if (ps->text_high (objfile) < ps->text_low (objfile))
1855 printf_filtered ("Psymtab ");
1856 puts_filtered (ps->filename);
1857 printf_filtered (" covers bad range ");
1858 fputs_filtered (paddress (gdbarch, ps->text_low (objfile)),
1860 printf_filtered (" - ");
1861 fputs_filtered (paddress (gdbarch, ps->text_high (objfile)),
1863 printf_filtered ("\n");
1867 /* Now do checks requiring the associated symtab. */
1870 bv = COMPUNIT_BLOCKVECTOR (cust);
1871 b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1872 for (partial_symbol *psym : ps->static_psymbols)
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)
1880 sym = block_lookup_symbol (b, psym->ginfo.search_name (),
1881 symbol_name_match_type::SEARCH_NAME,
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");
1892 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1893 for (partial_symbol *psym : ps->global_psymbols)
1895 sym = block_lookup_symbol (b, psym->ginfo.search_name (),
1896 symbol_name_match_type::SEARCH_NAME,
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");
1907 if (ps->raw_text_high () != 0
1908 && (ps->text_low (objfile) < BLOCK_START (b)
1909 || ps->text_high (objfile) > BLOCK_END (b)))
1911 printf_filtered ("Psymtab ");
1912 puts_filtered (ps->filename);
1913 printf_filtered (" covers ");
1914 fputs_filtered (paddress (gdbarch, ps->text_low (objfile)),
1916 printf_filtered (" - ");
1917 fputs_filtered (paddress (gdbarch, ps->text_high (objfile)),
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");
1930 void _initialize_psymtab ();
1932 _initialize_psymtab ()
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);
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);
1951 add_cmd ("check-psymtabs", class_maintenance, maintenance_check_psymtabs,
1953 Check consistency of currently expanded psymtabs versus symtabs."),