gdb/symmisc.c

   1 /* Do various things to symbol tables (other than lookup), for GDB.
   2
   3    Copyright (C) 1986-2013 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 "gdbtypes.h"
  23 #include "bfd.h"
  24 #include "filenames.h"
  25 #include "symfile.h"
  26 #include "objfiles.h"
  27 #include "breakpoint.h"
  28 #include "command.h"
  29 #include "gdb_obstack.h"
  30 #include "exceptions.h"
  31 #include "language.h"
  32 #include "bcache.h"
  33 #include "block.h"
  34 #include "gdb_regex.h"
  35 #include "gdb_stat.h"
  36 #include "dictionary.h"
  37 #include "typeprint.h"
  38 #include "gdbcmd.h"
  39 #include "source.h"
  40
  41 #include "gdb_string.h"
  42 #include "readline/readline.h"
  43
  44 #include "psymtab.h"
  45
  46 #ifndef DEV_TTY
  47 #define DEV_TTY "/dev/tty"
  48 #endif
  49
  50 /* Unfortunately for debugging, stderr is usually a macro.  This is painful
  51    when calling functions that take FILE *'s from the debugger.
  52    So we make a variable which has the same value and which is accessible when
  53    debugging GDB with itself.  Because stdin et al need not be constants,
  54    we initialize them in the _initialize_symmisc function at the bottom
  55    of the file.  */
  56 FILE *std_in;
  57 FILE *std_out;
  58 FILE *std_err;
  59
  60 /* Prototypes for local functions */
  61
  62 static void dump_symtab (struct objfile *, struct symtab *,
  63                          struct ui_file *);
  64
  65 static void dump_msymbols (struct objfile *, struct ui_file *);
  66
  67 static void dump_objfile (struct objfile *);
  68
  69 static int block_depth (struct block *);
  70
  71 void _initialize_symmisc (void);
  72
  73 struct print_symbol_args
  74   {
  75     struct gdbarch *gdbarch;
  76     struct symbol *symbol;
  77     int depth;
  78     struct ui_file *outfile;
  79   };
  80
  81 static int print_symbol (void *);
  82 \f
  83
  84 void
  85 print_symbol_bcache_statistics (void)
  86 {
  87   struct program_space *pspace;
  88   struct objfile *objfile;
  89
  90   ALL_PSPACES (pspace)
  91     ALL_PSPACE_OBJFILES (pspace, objfile)
  92   {
  93     QUIT;
  94     printf_filtered (_("Byte cache statistics for '%s':\n"), objfile->name);
  95     print_bcache_statistics (psymbol_bcache_get_bcache (objfile->psymbol_cache),
  96                              "partial symbol cache");
  97     print_bcache_statistics (objfile->per_bfd->macro_cache,
  98                              "preprocessor macro cache");
  99     print_bcache_statistics (objfile->per_bfd->filename_cache,
 100                              "file name cache");
 101   }
 102 }
 103
 104 void
 105 print_objfile_statistics (void)
 106 {
 107   struct program_space *pspace;
 108   struct objfile *objfile;
 109   struct symtab *s;
 110   int i, linetables, blockvectors;
 111
 112   ALL_PSPACES (pspace)
 113     ALL_PSPACE_OBJFILES (pspace, objfile)
 114   {
 115     QUIT;
 116     printf_filtered (_("Statistics for '%s':\n"), objfile->name);
 117     if (OBJSTAT (objfile, n_stabs) > 0)
 118       printf_filtered (_("  Number of \"stab\" symbols read: %d\n"),
 119                        OBJSTAT (objfile, n_stabs));
 120     if (OBJSTAT (objfile, n_minsyms) > 0)
 121       printf_filtered (_("  Number of \"minimal\" symbols read: %d\n"),
 122                        OBJSTAT (objfile, n_minsyms));
 123     if (OBJSTAT (objfile, n_psyms) > 0)
 124       printf_filtered (_("  Number of \"partial\" symbols read: %d\n"),
 125                        OBJSTAT (objfile, n_psyms));
 126     if (OBJSTAT (objfile, n_syms) > 0)
 127       printf_filtered (_("  Number of \"full\" symbols read: %d\n"),
 128                        OBJSTAT (objfile, n_syms));
 129     if (OBJSTAT (objfile, n_types) > 0)
 130       printf_filtered (_("  Number of \"types\" defined: %d\n"),
 131                        OBJSTAT (objfile, n_types));
 132     if (objfile->sf)
 133       objfile->sf->qf->print_stats (objfile);
 134     i = linetables = blockvectors = 0;
 135     ALL_OBJFILE_SYMTABS (objfile, s)
 136       {
 137         i++;
 138         if (s->linetable != NULL)
 139           linetables++;
 140         if (s->primary == 1)
 141           blockvectors++;
 142       }
 143     printf_filtered (_("  Number of symbol tables: %d\n"), i);
 144     printf_filtered (_("  Number of symbol tables with line tables: %d\n"),
 145                      linetables);
 146     printf_filtered (_("  Number of symbol tables with blockvectors: %d\n"),
 147                      blockvectors);
 148
 149     if (OBJSTAT (objfile, sz_strtab) > 0)
 150       printf_filtered (_("  Space used by a.out string tables: %d\n"),
 151                        OBJSTAT (objfile, sz_strtab));
 152     printf_filtered (_("  Total memory used for objfile obstack: %d\n"),
 153                      obstack_memory_used (&objfile->objfile_obstack));
 154     printf_filtered (_("  Total memory used for BFD obstack: %d\n"),
 155                      obstack_memory_used (&objfile->per_bfd->storage_obstack));
 156     printf_filtered (_("  Total memory used for psymbol cache: %d\n"),
 157                      bcache_memory_used (psymbol_bcache_get_bcache
 158                                           (objfile->psymbol_cache)));
 159     printf_filtered (_("  Total memory used for macro cache: %d\n"),
 160                      bcache_memory_used (objfile->per_bfd->macro_cache));
 161     printf_filtered (_("  Total memory used for file name cache: %d\n"),
 162                      bcache_memory_used (objfile->per_bfd->filename_cache));
 163   }
 164 }
 165
 166 static void
 167 dump_objfile (struct objfile *objfile)
 168 {
 169   struct symtab *symtab;
 170
 171   printf_filtered ("\nObject file %s:  ", objfile->name);
 172   printf_filtered ("Objfile at ");
 173   gdb_print_host_address (objfile, gdb_stdout);
 174   printf_filtered (", bfd at ");
 175   gdb_print_host_address (objfile->obfd, gdb_stdout);
 176   printf_filtered (", %d minsyms\n\n",
 177                    objfile->minimal_symbol_count);
 178
 179   if (objfile->sf)
 180     objfile->sf->qf->dump (objfile);
 181
 182   if (objfile->symtabs)
 183     {
 184       printf_filtered ("Symtabs:\n");
 185       for (symtab = objfile->symtabs;
 186            symtab != NULL;
 187            symtab = symtab->next)
 188         {
 189           printf_filtered ("%s at ", symtab_to_filename_for_display (symtab));
 190           gdb_print_host_address (symtab, gdb_stdout);
 191           printf_filtered (", ");
 192           if (symtab->objfile != objfile)
 193             {
 194               printf_filtered ("NOT ON CHAIN!  ");
 195             }
 196           wrap_here ("  ");
 197         }
 198       printf_filtered ("\n\n");
 199     }
 200 }
 201
 202 /* Print minimal symbols from this objfile.  */
 203
 204 static void
 205 dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
 206 {
 207   struct gdbarch *gdbarch = get_objfile_arch (objfile);
 208   struct minimal_symbol *msymbol;
 209   int index;
 210   char ms_type;
 211
 212   fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
 213   if (objfile->minimal_symbol_count == 0)
 214     {
 215       fprintf_filtered (outfile, "No minimal symbols found.\n");
 216       return;
 217     }
 218   index = 0;
 219   ALL_OBJFILE_MSYMBOLS (objfile, msymbol)
 220     {
 221       struct obj_section *section = SYMBOL_OBJ_SECTION (msymbol);
 222
 223       switch (MSYMBOL_TYPE (msymbol))
 224         {
 225         case mst_unknown:
 226           ms_type = 'u';
 227           break;
 228         case mst_text:
 229           ms_type = 'T';
 230           break;
 231         case mst_text_gnu_ifunc:
 232           ms_type = 'i';
 233           break;
 234         case mst_solib_trampoline:
 235           ms_type = 'S';
 236           break;
 237         case mst_data:
 238           ms_type = 'D';
 239           break;
 240         case mst_bss:
 241           ms_type = 'B';
 242           break;
 243         case mst_abs:
 244           ms_type = 'A';
 245           break;
 246         case mst_file_text:
 247           ms_type = 't';
 248           break;
 249         case mst_file_data:
 250           ms_type = 'd';
 251           break;
 252         case mst_file_bss:
 253           ms_type = 'b';
 254           break;
 255         default:
 256           ms_type = '?';
 257           break;
 258         }
 259       fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
 260       fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msymbol)),
 261                       outfile);
 262       fprintf_filtered (outfile, " %s", SYMBOL_LINKAGE_NAME (msymbol));
 263       if (section)
 264         fprintf_filtered (outfile, " section %s",
 265                           bfd_section_name (objfile->obfd,
 266                                             section->the_bfd_section));
 267       if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
 268         {
 269           fprintf_filtered (outfile, "  %s", SYMBOL_DEMANGLED_NAME (msymbol));
 270         }
 271       if (msymbol->filename)
 272         fprintf_filtered (outfile, "  %s", msymbol->filename);
 273       fputs_filtered ("\n", outfile);
 274       index++;
 275     }
 276   if (objfile->minimal_symbol_count != index)
 277     {
 278       warning (_("internal error:  minimal symbol count %d != %d"),
 279                objfile->minimal_symbol_count, index);
 280     }
 281   fprintf_filtered (outfile, "\n");
 282 }
 283
 284 static void
 285 dump_symtab_1 (struct objfile *objfile, struct symtab *symtab,
 286                struct ui_file *outfile)
 287 {
 288   struct gdbarch *gdbarch = get_objfile_arch (objfile);
 289   int i;
 290   struct dict_iterator iter;
 291   int len;
 292   struct linetable *l;
 293   struct blockvector *bv;
 294   struct symbol *sym;
 295   struct block *b;
 296   int depth;
 297
 298   fprintf_filtered (outfile, "\nSymtab for file %s\n",
 299                     symtab_to_filename_for_display (symtab));
 300   if (symtab->dirname)
 301     fprintf_filtered (outfile, "Compilation directory is %s\n",
 302                       symtab->dirname);
 303   fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
 304   gdb_print_host_address (objfile, outfile);
 305   fprintf_filtered (outfile, ")\n");
 306   fprintf_filtered (outfile, "Language: %s\n",
 307                     language_str (symtab->language));
 308
 309   /* First print the line table.  */
 310   l = LINETABLE (symtab);
 311   if (l)
 312     {
 313       fprintf_filtered (outfile, "\nLine table:\n\n");
 314       len = l->nitems;
 315       for (i = 0; i < len; i++)
 316         {
 317           fprintf_filtered (outfile, " line %d at ", l->item[i].line);
 318           fputs_filtered (paddress (gdbarch, l->item[i].pc), outfile);
 319           fprintf_filtered (outfile, "\n");
 320         }
 321     }
 322   /* Now print the block info, but only for primary symtabs since we will
 323      print lots of duplicate info otherwise.  */
 324   if (symtab->primary)
 325     {
 326       fprintf_filtered (outfile, "\nBlockvector:\n\n");
 327       bv = BLOCKVECTOR (symtab);
 328       len = BLOCKVECTOR_NBLOCKS (bv);
 329       for (i = 0; i < len; i++)
 330         {
 331           b = BLOCKVECTOR_BLOCK (bv, i);
 332           depth = block_depth (b) * 2;
 333           print_spaces (depth, outfile);
 334           fprintf_filtered (outfile, "block #%03d, object at ", i);
 335           gdb_print_host_address (b, outfile);
 336           if (BLOCK_SUPERBLOCK (b))
 337             {
 338               fprintf_filtered (outfile, " under ");
 339               gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
 340             }
 341           /* drow/2002-07-10: We could save the total symbols count
 342              even if we're using a hashtable, but nothing else but this message
 343              wants it.  */
 344           fprintf_filtered (outfile, ", %d syms/buckets in ",
 345                             dict_size (BLOCK_DICT (b)));
 346           fputs_filtered (paddress (gdbarch, BLOCK_START (b)), outfile);
 347           fprintf_filtered (outfile, "..");
 348           fputs_filtered (paddress (gdbarch, BLOCK_END (b)), outfile);
 349           if (BLOCK_FUNCTION (b))
 350             {
 351               fprintf_filtered (outfile, ", function %s",
 352                                 SYMBOL_LINKAGE_NAME (BLOCK_FUNCTION (b)));
 353               if (SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)) != NULL)
 354                 {
 355                   fprintf_filtered (outfile, ", %s",
 356                                 SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)));
 357                 }
 358             }
 359           fprintf_filtered (outfile, "\n");
 360           /* Now print each symbol in this block (in no particular order, if
 361              we're using a hashtable).  Note that we only want this
 362              block, not any blocks from included symtabs.  */
 363           ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym)
 364             {
 365               struct print_symbol_args s;
 366
 367               s.gdbarch = gdbarch;
 368               s.symbol = sym;
 369               s.depth = depth + 1;
 370               s.outfile = outfile;
 371               catch_errors (print_symbol, &s, "Error printing symbol:\n",
 372                             RETURN_MASK_ERROR);
 373             }
 374         }
 375       fprintf_filtered (outfile, "\n");
 376     }
 377   else
 378     {
 379       fprintf_filtered (outfile, "\nBlockvector same as previous symtab\n\n");
 380     }
 381 }
 382
 383 static void
 384 dump_symtab (struct objfile *objfile, struct symtab *symtab,
 385              struct ui_file *outfile)
 386 {
 387   /* Set the current language to the language of the symtab we're dumping
 388      because certain routines used during dump_symtab() use the current
 389      language to print an image of the symbol.  We'll restore it later.
 390      But use only real languages, not placeholders.  */
 391   if (symtab->language != language_unknown
 392       && symtab->language != language_auto)
 393     {
 394       enum language saved_lang;
 395
 396       saved_lang = set_language (symtab->language);
 397
 398       dump_symtab_1 (objfile, symtab, outfile);
 399
 400       set_language (saved_lang);
 401     }
 402   else
 403     dump_symtab_1 (objfile, symtab, outfile);
 404 }
 405
 406 static void
 407 maintenance_print_symbols (char *args, int from_tty)
 408 {
 409   char **argv;
 410   struct ui_file *outfile;
 411   struct cleanup *cleanups;
 412   char *symname = NULL;
 413   char *filename = DEV_TTY;
 414   struct objfile *objfile;
 415   struct symtab *s;
 416
 417   dont_repeat ();
 418
 419   if (args == NULL)
 420     {
 421       error (_("Arguments missing: an output file name "
 422                "and an optional symbol file name"));
 423     }
 424   argv = gdb_buildargv (args);
 425   cleanups = make_cleanup_freeargv (argv);
 426
 427   if (argv[0] != NULL)
 428     {
 429       filename = argv[0];
 430       /* If a second arg is supplied, it is a source file name to match on.  */
 431       if (argv[1] != NULL)
 432         {
 433           symname = argv[1];
 434         }
 435     }
 436
 437   filename = tilde_expand (filename);
 438   make_cleanup (xfree, filename);
 439
 440   outfile = gdb_fopen (filename, FOPEN_WT);
 441   if (outfile == 0)
 442     perror_with_name (filename);
 443   make_cleanup_ui_file_delete (outfile);
 444
 445   ALL_SYMTABS (objfile, s)
 446     {
 447       QUIT;
 448       if (symname == NULL
 449           || filename_cmp (symname, symtab_to_filename_for_display (s)) == 0)
 450         dump_symtab (objfile, s, outfile);
 451     }
 452   do_cleanups (cleanups);
 453 }
 454
 455 /* Print symbol ARGS->SYMBOL on ARGS->OUTFILE.  ARGS->DEPTH says how
 456    far to indent.  ARGS is really a struct print_symbol_args *, but is
 457    declared as char * to get it past catch_errors.  Returns 0 for error,
 458    1 for success.  */
 459
 460 static int
 461 print_symbol (void *args)
 462 {
 463   struct gdbarch *gdbarch = ((struct print_symbol_args *) args)->gdbarch;
 464   struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
 465   int depth = ((struct print_symbol_args *) args)->depth;
 466   struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
 467   struct obj_section *section = SYMBOL_OBJ_SECTION (symbol);
 468
 469   print_spaces (depth, outfile);
 470   if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
 471     {
 472       fprintf_filtered (outfile, "label %s at ", SYMBOL_PRINT_NAME (symbol));
 473       fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 474                       outfile);
 475       if (section)
 476         fprintf_filtered (outfile, " section %s\n",
 477                           bfd_section_name (section->the_bfd_section->owner,
 478                                             section->the_bfd_section));
 479       else
 480         fprintf_filtered (outfile, "\n");
 481       return 1;
 482     }
 483   if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
 484     {
 485       if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
 486         {
 487           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
 488                          &type_print_raw_options);
 489         }
 490       else
 491         {
 492           fprintf_filtered (outfile, "%s %s = ",
 493                          (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
 494                           ? "enum"
 495                      : (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
 496                         ? "struct" : "union")),
 497                             SYMBOL_LINKAGE_NAME (symbol));
 498           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth,
 499                          &type_print_raw_options);
 500         }
 501       fprintf_filtered (outfile, ";\n");
 502     }
 503   else
 504     {
 505       if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 506         fprintf_filtered (outfile, "typedef ");
 507       if (SYMBOL_TYPE (symbol))
 508         {
 509           /* Print details of types, except for enums where it's clutter.  */
 510           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_PRINT_NAME (symbol),
 511                          outfile,
 512                          TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
 513                          depth,
 514                          &type_print_raw_options);
 515           fprintf_filtered (outfile, "; ");
 516         }
 517       else
 518         fprintf_filtered (outfile, "%s ", SYMBOL_PRINT_NAME (symbol));
 519
 520       switch (SYMBOL_CLASS (symbol))
 521         {
 522         case LOC_CONST:
 523           fprintf_filtered (outfile, "const %s (%s)",
 524                             plongest (SYMBOL_VALUE (symbol)),
 525                             hex_string (SYMBOL_VALUE (symbol)));
 526           break;
 527
 528         case LOC_CONST_BYTES:
 529           {
 530             unsigned i;
 531             struct type *type = check_typedef (SYMBOL_TYPE (symbol));
 532
 533             fprintf_filtered (outfile, "const %u hex bytes:",
 534                               TYPE_LENGTH (type));
 535             for (i = 0; i < TYPE_LENGTH (type); i++)
 536               fprintf_filtered (outfile, " %02x",
 537                                 (unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
 538           }
 539           break;
 540
 541         case LOC_STATIC:
 542           fprintf_filtered (outfile, "static at ");
 543           fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 544                           outfile);
 545           if (section)
 546             fprintf_filtered (outfile, " section %s",
 547                               bfd_section_name (section->the_bfd_section->owner,
 548                                                 section->the_bfd_section));
 549           break;
 550
 551         case LOC_REGISTER:
 552           if (SYMBOL_IS_ARGUMENT (symbol))
 553             fprintf_filtered (outfile, "parameter register %s",
 554                               plongest (SYMBOL_VALUE (symbol)));
 555           else
 556             fprintf_filtered (outfile, "register %s",
 557                               plongest (SYMBOL_VALUE (symbol)));
 558           break;
 559
 560         case LOC_ARG:
 561           fprintf_filtered (outfile, "arg at offset %s",
 562                             hex_string (SYMBOL_VALUE (symbol)));
 563           break;
 564
 565         case LOC_REF_ARG:
 566           fprintf_filtered (outfile, "reference arg at %s",
 567                             hex_string (SYMBOL_VALUE (symbol)));
 568           break;
 569
 570         case LOC_REGPARM_ADDR:
 571           fprintf_filtered (outfile, "address parameter register %s",
 572                             plongest (SYMBOL_VALUE (symbol)));
 573           break;
 574
 575         case LOC_LOCAL:
 576           fprintf_filtered (outfile, "local at offset %s",
 577                             hex_string (SYMBOL_VALUE (symbol)));
 578           break;
 579
 580         case LOC_TYPEDEF:
 581           break;
 582
 583         case LOC_LABEL:
 584           fprintf_filtered (outfile, "label at ");
 585           fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 586                           outfile);
 587           if (section)
 588             fprintf_filtered (outfile, " section %s",
 589                               bfd_section_name (section->the_bfd_section->owner,
 590                                                 section->the_bfd_section));
 591           break;
 592
 593         case LOC_BLOCK:
 594           fprintf_filtered (outfile, "block object ");
 595           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 596           fprintf_filtered (outfile, ", ");
 597           fputs_filtered (paddress (gdbarch,
 598                                     BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
 599                           outfile);
 600           fprintf_filtered (outfile, "..");
 601           fputs_filtered (paddress (gdbarch,
 602                                     BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
 603                           outfile);
 604           if (section)
 605             fprintf_filtered (outfile, " section %s",
 606                               bfd_section_name (section->the_bfd_section->owner,
 607                                                 section->the_bfd_section));
 608           break;
 609
 610         case LOC_COMPUTED:
 611           fprintf_filtered (outfile, "computed at runtime");
 612           break;
 613
 614         case LOC_UNRESOLVED:
 615           fprintf_filtered (outfile, "unresolved");
 616           break;
 617
 618         case LOC_OPTIMIZED_OUT:
 619           fprintf_filtered (outfile, "optimized out");
 620           break;
 621
 622         default:
 623           fprintf_filtered (outfile, "botched symbol class %x",
 624                             SYMBOL_CLASS (symbol));
 625           break;
 626         }
 627     }
 628   fprintf_filtered (outfile, "\n");
 629   return 1;
 630 }
 631
 632 static void
 633 maintenance_print_msymbols (char *args, int from_tty)
 634 {
 635   char **argv;
 636   struct ui_file *outfile;
 637   struct cleanup *cleanups;
 638   char *filename = DEV_TTY;
 639   char *symname = NULL;
 640   struct program_space *pspace;
 641   struct objfile *objfile;
 642
 643   struct stat sym_st, obj_st;
 644
 645   dont_repeat ();
 646
 647   if (args == NULL)
 648     {
 649       error (_("print-msymbols takes an output file "
 650                "name and optional symbol file name"));
 651     }
 652   argv = gdb_buildargv (args);
 653   cleanups = make_cleanup_freeargv (argv);
 654
 655   if (argv[0] != NULL)
 656     {
 657       filename = argv[0];
 658       /* If a second arg is supplied, it is a source file name to match on.  */
 659       if (argv[1] != NULL)
 660         {
 661           symname = gdb_realpath (argv[1]);
 662           make_cleanup (xfree, symname);
 663           if (symname && stat (symname, &sym_st))
 664             perror_with_name (symname);
 665         }
 666     }
 667
 668   filename = tilde_expand (filename);
 669   make_cleanup (xfree, filename);
 670
 671   outfile = gdb_fopen (filename, FOPEN_WT);
 672   if (outfile == 0)
 673     perror_with_name (filename);
 674   make_cleanup_ui_file_delete (outfile);
 675
 676   ALL_PSPACES (pspace)
 677     ALL_PSPACE_OBJFILES (pspace, objfile)
 678       {
 679         QUIT;
 680         if (symname == NULL || (!stat (objfile->name, &obj_st)
 681                                 && sym_st.st_dev == obj_st.st_dev
 682                                 && sym_st.st_ino == obj_st.st_ino))
 683           dump_msymbols (objfile, outfile);
 684       }
 685   fprintf_filtered (outfile, "\n\n");
 686   do_cleanups (cleanups);
 687 }
 688
 689 static void
 690 maintenance_print_objfiles (char *ignore, int from_tty)
 691 {
 692   struct program_space *pspace;
 693   struct objfile *objfile;
 694
 695   dont_repeat ();
 696
 697   ALL_PSPACES (pspace)
 698     ALL_PSPACE_OBJFILES (pspace, objfile)
 699       {
 700         QUIT;
 701         dump_objfile (objfile);
 702       }
 703 }
 704
 705 /* List all the symbol tables whose names match REGEXP (optional).  */
 706
 707 static void
 708 maintenance_info_symtabs (char *regexp, int from_tty)
 709 {
 710   struct program_space *pspace;
 711   struct objfile *objfile;
 712
 713   if (regexp)
 714     re_comp (regexp);
 715
 716   ALL_PSPACES (pspace)
 717     ALL_PSPACE_OBJFILES (pspace, objfile)
 718     {
 719       struct symtab *symtab;
 720
 721       /* We don't want to print anything for this objfile until we
 722          actually find a symtab whose name matches.  */
 723       int printed_objfile_start = 0;
 724
 725       ALL_OBJFILE_SYMTABS (objfile, symtab)
 726         {
 727           QUIT;
 728
 729           if (! regexp
 730               || re_exec (symtab_to_filename_for_display (symtab)))
 731             {
 732               if (! printed_objfile_start)
 733                 {
 734                   printf_filtered ("{ objfile %s ", objfile->name);
 735                   wrap_here ("  ");
 736                   printf_filtered ("((struct objfile *) %s)\n",
 737                                    host_address_to_string (objfile));
 738                   printed_objfile_start = 1;
 739                 }
 740
 741               printf_filtered ("        { symtab %s ",
 742                                symtab_to_filename_for_display (symtab));
 743               wrap_here ("    ");
 744               printf_filtered ("((struct symtab *) %s)\n",
 745                                host_address_to_string (symtab));
 746               printf_filtered ("          dirname %s\n",
 747                                symtab->dirname ? symtab->dirname : "(null)");
 748               printf_filtered ("          fullname %s\n",
 749                                symtab->fullname ? symtab->fullname : "(null)");
 750               printf_filtered ("          "
 751                                "blockvector ((struct blockvector *) %s)%s\n",
 752                                host_address_to_string (symtab->blockvector),
 753                                symtab->primary ? " (primary)" : "");
 754               printf_filtered ("          "
 755                                "linetable ((struct linetable *) %s)\n",
 756                                host_address_to_string (symtab->linetable));
 757               printf_filtered ("          debugformat %s\n",
 758                                symtab->debugformat);
 759               printf_filtered ("        }\n");
 760             }
 761         }
 762
 763       if (printed_objfile_start)
 764         printf_filtered ("}\n");
 765     }
 766 }
 767 \f
 768
 769 /* Return the nexting depth of a block within other blocks in its symtab.  */
 770
 771 static int
 772 block_depth (struct block *block)
 773 {
 774   int i = 0;
 775
 776   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
 777     {
 778       i++;
 779     }
 780   return i;
 781 }
 782 \f
 783
 784 /* Do early runtime initializations.  */
 785
 786 void
 787 _initialize_symmisc (void)
 788 {
 789   std_in = stdin;
 790   std_out = stdout;
 791   std_err = stderr;
 792
 793   add_cmd ("symbols", class_maintenance, maintenance_print_symbols, _("\
 794 Print dump of current symbol definitions.\n\
 795 Entries in the full symbol table are dumped to file OUTFILE.\n\
 796 If a SOURCE file is specified, dump only that file's symbols."),
 797            &maintenanceprintlist);
 798
 799   add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, _("\
 800 Print dump of current minimal symbol definitions.\n\
 801 Entries in the minimal symbol table are dumped to file OUTFILE.\n\
 802 If a SOURCE file is specified, dump only that file's minimal symbols."),
 803            &maintenanceprintlist);
 804
 805   add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles,
 806            _("Print dump of current object file definitions."),
 807            &maintenanceprintlist);
 808
 809   add_cmd ("symtabs", class_maintenance, maintenance_info_symtabs, _("\
 810 List the full symbol tables for all object files.\n\
 811 This does not include information about individual symbols, blocks, or\n\
 812 linetables --- just the symbol table structures themselves.\n\
 813 With an argument REGEXP, list the symbol tables whose names that match that."),
 814            &maintenanceinfolist);
 815 }