gdb/symmisc.c

   1 /* Do various things to symbol tables (other than lookup), for GDB.
   2
   3    Copyright (C) 1986-2000, 2002-2004, 2007-2012 Free Software
   4    Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #include "defs.h"
  22 #include "symtab.h"
  23 #include "gdbtypes.h"
  24 #include "bfd.h"
  25 #include "filenames.h"
  26 #include "symfile.h"
  27 #include "objfiles.h"
  28 #include "breakpoint.h"
  29 #include "command.h"
  30 #include "gdb_obstack.h"
  31 #include "exceptions.h"
  32 #include "language.h"
  33 #include "bcache.h"
  34 #include "block.h"
  35 #include "gdb_regex.h"
  36 #include "gdb_stat.h"
  37 #include "dictionary.h"
  38
  39 #include "gdb_string.h"
  40 #include "readline/readline.h"
  41
  42 #include "psymtab.h"
  43
  44 #ifndef DEV_TTY
  45 #define DEV_TTY "/dev/tty"
  46 #endif
  47
  48 /* Unfortunately for debugging, stderr is usually a macro.  This is painful
  49    when calling functions that take FILE *'s from the debugger.
  50    So we make a variable which has the same value and which is accessible when
  51    debugging GDB with itself.  Because stdin et al need not be constants,
  52    we initialize them in the _initialize_symmisc function at the bottom
  53    of the file.  */
  54 FILE *std_in;
  55 FILE *std_out;
  56 FILE *std_err;
  57
  58 /* Prototypes for local functions */
  59
  60 static void dump_symtab (struct objfile *, struct symtab *,
  61                          struct ui_file *);
  62
  63 static void dump_msymbols (struct objfile *, struct ui_file *);
  64
  65 static void dump_objfile (struct objfile *);
  66
  67 static int block_depth (struct block *);
  68
  69 void _initialize_symmisc (void);
  70
  71 struct print_symbol_args
  72   {
  73     struct gdbarch *gdbarch;
  74     struct symbol *symbol;
  75     int depth;
  76     struct ui_file *outfile;
  77   };
  78
  79 static int print_symbol (void *);
  80 \f
  81
  82 void
  83 print_symbol_bcache_statistics (void)
  84 {
  85   struct program_space *pspace;
  86   struct objfile *objfile;
  87
  88   immediate_quit++;
  89   ALL_PSPACES (pspace)
  90     ALL_PSPACE_OBJFILES (pspace, objfile)
  91   {
  92     printf_filtered (_("Byte cache statistics for '%s':\n"), objfile->name);
  93     print_bcache_statistics (psymbol_bcache_get_bcache (objfile->psymbol_cache),
  94                              "partial symbol cache");
  95     print_bcache_statistics (objfile->macro_cache, "preprocessor macro cache");
  96     print_bcache_statistics (objfile->filename_cache, "file name cache");
  97   }
  98   immediate_quit--;
  99 }
 100
 101 void
 102 print_objfile_statistics (void)
 103 {
 104   struct program_space *pspace;
 105   struct objfile *objfile;
 106   struct symtab *s;
 107   int i, linetables, blockvectors;
 108
 109   immediate_quit++;
 110   ALL_PSPACES (pspace)
 111     ALL_PSPACE_OBJFILES (pspace, objfile)
 112   {
 113     printf_filtered (_("Statistics for '%s':\n"), objfile->name);
 114     if (OBJSTAT (objfile, n_stabs) > 0)
 115       printf_filtered (_("  Number of \"stab\" symbols read: %d\n"),
 116                        OBJSTAT (objfile, n_stabs));
 117     if (OBJSTAT (objfile, n_minsyms) > 0)
 118       printf_filtered (_("  Number of \"minimal\" symbols read: %d\n"),
 119                        OBJSTAT (objfile, n_minsyms));
 120     if (OBJSTAT (objfile, n_psyms) > 0)
 121       printf_filtered (_("  Number of \"partial\" symbols read: %d\n"),
 122                        OBJSTAT (objfile, n_psyms));
 123     if (OBJSTAT (objfile, n_syms) > 0)
 124       printf_filtered (_("  Number of \"full\" symbols read: %d\n"),
 125                        OBJSTAT (objfile, n_syms));
 126     if (OBJSTAT (objfile, n_types) > 0)
 127       printf_filtered (_("  Number of \"types\" defined: %d\n"),
 128                        OBJSTAT (objfile, n_types));
 129     if (objfile->sf)
 130       objfile->sf->qf->print_stats (objfile);
 131     i = linetables = blockvectors = 0;
 132     ALL_OBJFILE_SYMTABS (objfile, s)
 133       {
 134         i++;
 135         if (s->linetable != NULL)
 136           linetables++;
 137         if (s->primary == 1)
 138           blockvectors++;
 139       }
 140     printf_filtered (_("  Number of symbol tables: %d\n"), i);
 141     printf_filtered (_("  Number of symbol tables with line tables: %d\n"),
 142                      linetables);
 143     printf_filtered (_("  Number of symbol tables with blockvectors: %d\n"),
 144                      blockvectors);
 145
 146     if (OBJSTAT (objfile, sz_strtab) > 0)
 147       printf_filtered (_("  Space used by a.out string tables: %d\n"),
 148                        OBJSTAT (objfile, sz_strtab));
 149     printf_filtered (_("  Total memory used for objfile obstack: %d\n"),
 150                      obstack_memory_used (&objfile->objfile_obstack));
 151     printf_filtered (_("  Total memory used for psymbol cache: %d\n"),
 152                      bcache_memory_used (psymbol_bcache_get_bcache
 153                                           (objfile->psymbol_cache)));
 154     printf_filtered (_("  Total memory used for macro cache: %d\n"),
 155                      bcache_memory_used (objfile->macro_cache));
 156     printf_filtered (_("  Total memory used for file name cache: %d\n"),
 157                      bcache_memory_used (objfile->filename_cache));
 158   }
 159   immediate_quit--;
 160 }
 161
 162 static void
 163 dump_objfile (struct objfile *objfile)
 164 {
 165   struct symtab *symtab;
 166
 167   printf_filtered ("\nObject file %s:  ", objfile->name);
 168   printf_filtered ("Objfile at ");
 169   gdb_print_host_address (objfile, gdb_stdout);
 170   printf_filtered (", bfd at ");
 171   gdb_print_host_address (objfile->obfd, gdb_stdout);
 172   printf_filtered (", %d minsyms\n\n",
 173                    objfile->minimal_symbol_count);
 174
 175   if (objfile->sf)
 176     objfile->sf->qf->dump (objfile);
 177
 178   if (objfile->symtabs)
 179     {
 180       printf_filtered ("Symtabs:\n");
 181       for (symtab = objfile->symtabs;
 182            symtab != NULL;
 183            symtab = symtab->next)
 184         {
 185           printf_filtered ("%s at ", symtab->filename);
 186           gdb_print_host_address (symtab, gdb_stdout);
 187           printf_filtered (", ");
 188           if (symtab->objfile != objfile)
 189             {
 190               printf_filtered ("NOT ON CHAIN!  ");
 191             }
 192           wrap_here ("  ");
 193         }
 194       printf_filtered ("\n\n");
 195     }
 196 }
 197
 198 /* Print minimal symbols from this objfile.  */
 199
 200 static void
 201 dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
 202 {
 203   struct gdbarch *gdbarch = get_objfile_arch (objfile);
 204   struct minimal_symbol *msymbol;
 205   int index;
 206   char ms_type;
 207
 208   fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
 209   if (objfile->minimal_symbol_count == 0)
 210     {
 211       fprintf_filtered (outfile, "No minimal symbols found.\n");
 212       return;
 213     }
 214   index = 0;
 215   ALL_OBJFILE_MSYMBOLS (objfile, msymbol)
 216     {
 217       struct obj_section *section = SYMBOL_OBJ_SECTION (msymbol);
 218
 219       switch (MSYMBOL_TYPE (msymbol))
 220         {
 221         case mst_unknown:
 222           ms_type = 'u';
 223           break;
 224         case mst_text:
 225           ms_type = 'T';
 226           break;
 227         case mst_text_gnu_ifunc:
 228           ms_type = 'i';
 229           break;
 230         case mst_solib_trampoline:
 231           ms_type = 'S';
 232           break;
 233         case mst_data:
 234           ms_type = 'D';
 235           break;
 236         case mst_bss:
 237           ms_type = 'B';
 238           break;
 239         case mst_abs:
 240           ms_type = 'A';
 241           break;
 242         case mst_file_text:
 243           ms_type = 't';
 244           break;
 245         case mst_file_data:
 246           ms_type = 'd';
 247           break;
 248         case mst_file_bss:
 249           ms_type = 'b';
 250           break;
 251         default:
 252           ms_type = '?';
 253           break;
 254         }
 255       fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
 256       fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msymbol)),
 257                       outfile);
 258       fprintf_filtered (outfile, " %s", SYMBOL_LINKAGE_NAME (msymbol));
 259       if (section)
 260         fprintf_filtered (outfile, " section %s",
 261                           bfd_section_name (objfile->obfd,
 262                                             section->the_bfd_section));
 263       if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
 264         {
 265           fprintf_filtered (outfile, "  %s", SYMBOL_DEMANGLED_NAME (msymbol));
 266         }
 267       if (msymbol->filename)
 268         fprintf_filtered (outfile, "  %s", msymbol->filename);
 269       fputs_filtered ("\n", outfile);
 270       index++;
 271     }
 272   if (objfile->minimal_symbol_count != index)
 273     {
 274       warning (_("internal error:  minimal symbol count %d != %d"),
 275                objfile->minimal_symbol_count, index);
 276     }
 277   fprintf_filtered (outfile, "\n");
 278 }
 279
 280 static void
 281 dump_symtab_1 (struct objfile *objfile, struct symtab *symtab,
 282                struct ui_file *outfile)
 283 {
 284   struct gdbarch *gdbarch = get_objfile_arch (objfile);
 285   int i;
 286   struct dict_iterator iter;
 287   int len;
 288   struct linetable *l;
 289   struct blockvector *bv;
 290   struct symbol *sym;
 291   struct block *b;
 292   int depth;
 293
 294   fprintf_filtered (outfile, "\nSymtab for file %s\n", symtab->filename);
 295   if (symtab->dirname)
 296     fprintf_filtered (outfile, "Compilation directory is %s\n",
 297                       symtab->dirname);
 298   fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
 299   gdb_print_host_address (objfile, outfile);
 300   fprintf_filtered (outfile, ")\n");
 301   fprintf_filtered (outfile, "Language: %s\n",
 302                     language_str (symtab->language));
 303
 304   /* First print the line table.  */
 305   l = LINETABLE (symtab);
 306   if (l)
 307     {
 308       fprintf_filtered (outfile, "\nLine table:\n\n");
 309       len = l->nitems;
 310       for (i = 0; i < len; i++)
 311         {
 312           fprintf_filtered (outfile, " line %d at ", l->item[i].line);
 313           fputs_filtered (paddress (gdbarch, l->item[i].pc), outfile);
 314           fprintf_filtered (outfile, "\n");
 315         }
 316     }
 317   /* Now print the block info, but only for primary symtabs since we will
 318      print lots of duplicate info otherwise.  */
 319   if (symtab->primary)
 320     {
 321       fprintf_filtered (outfile, "\nBlockvector:\n\n");
 322       bv = BLOCKVECTOR (symtab);
 323       len = BLOCKVECTOR_NBLOCKS (bv);
 324       for (i = 0; i < len; i++)
 325         {
 326           b = BLOCKVECTOR_BLOCK (bv, i);
 327           depth = block_depth (b) * 2;
 328           print_spaces (depth, outfile);
 329           fprintf_filtered (outfile, "block #%03d, object at ", i);
 330           gdb_print_host_address (b, outfile);
 331           if (BLOCK_SUPERBLOCK (b))
 332             {
 333               fprintf_filtered (outfile, " under ");
 334               gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
 335             }
 336           /* drow/2002-07-10: We could save the total symbols count
 337              even if we're using a hashtable, but nothing else but this message
 338              wants it.  */
 339           fprintf_filtered (outfile, ", %d syms/buckets in ",
 340                             dict_size (BLOCK_DICT (b)));
 341           fputs_filtered (paddress (gdbarch, BLOCK_START (b)), outfile);
 342           fprintf_filtered (outfile, "..");
 343           fputs_filtered (paddress (gdbarch, BLOCK_END (b)), outfile);
 344           if (BLOCK_FUNCTION (b))
 345             {
 346               fprintf_filtered (outfile, ", function %s",
 347                                 SYMBOL_LINKAGE_NAME (BLOCK_FUNCTION (b)));
 348               if (SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)) != NULL)
 349                 {
 350                   fprintf_filtered (outfile, ", %s",
 351                                 SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)));
 352                 }
 353             }
 354           fprintf_filtered (outfile, "\n");
 355           /* Now print each symbol in this block (in no particular order, if
 356              we're using a hashtable).  */
 357           ALL_BLOCK_SYMBOLS (b, iter, sym)
 358             {
 359               struct print_symbol_args s;
 360
 361               s.gdbarch = gdbarch;
 362               s.symbol = sym;
 363               s.depth = depth + 1;
 364               s.outfile = outfile;
 365               catch_errors (print_symbol, &s, "Error printing symbol:\n",
 366                             RETURN_MASK_ERROR);
 367             }
 368         }
 369       fprintf_filtered (outfile, "\n");
 370     }
 371   else
 372     {
 373       fprintf_filtered (outfile, "\nBlockvector same as previous symtab\n\n");
 374     }
 375 }
 376
 377 static void
 378 dump_symtab (struct objfile *objfile, struct symtab *symtab,
 379              struct ui_file *outfile)
 380 {
 381   /* Set the current language to the language of the symtab we're dumping
 382      because certain routines used during dump_symtab() use the current
 383      language to print an image of the symbol.  We'll restore it later.
 384      But use only real languages, not placeholders.  */
 385   if (symtab->language != language_unknown
 386       && symtab->language != language_auto)
 387     {
 388       enum language saved_lang;
 389
 390       saved_lang = set_language (symtab->language);
 391
 392       dump_symtab_1 (objfile, symtab, outfile);
 393
 394       set_language (saved_lang);
 395     }
 396   else
 397     dump_symtab_1 (objfile, symtab, outfile);
 398 }
 399
 400 void
 401 maintenance_print_symbols (char *args, int from_tty)
 402 {
 403   char **argv;
 404   struct ui_file *outfile;
 405   struct cleanup *cleanups;
 406   char *symname = NULL;
 407   char *filename = DEV_TTY;
 408   struct objfile *objfile;
 409   struct symtab *s;
 410
 411   dont_repeat ();
 412
 413   if (args == NULL)
 414     {
 415       error (_("Arguments missing: an output file name "
 416                "and an optional symbol file name"));
 417     }
 418   argv = gdb_buildargv (args);
 419   cleanups = make_cleanup_freeargv (argv);
 420
 421   if (argv[0] != NULL)
 422     {
 423       filename = argv[0];
 424       /* If a second arg is supplied, it is a source file name to match on.  */
 425       if (argv[1] != NULL)
 426         {
 427           symname = argv[1];
 428         }
 429     }
 430
 431   filename = tilde_expand (filename);
 432   make_cleanup (xfree, filename);
 433
 434   outfile = gdb_fopen (filename, FOPEN_WT);
 435   if (outfile == 0)
 436     perror_with_name (filename);
 437   make_cleanup_ui_file_delete (outfile);
 438
 439   immediate_quit++;
 440   ALL_SYMTABS (objfile, s)
 441     if (symname == NULL || filename_cmp (symname, s->filename) == 0)
 442     dump_symtab (objfile, s, outfile);
 443   immediate_quit--;
 444   do_cleanups (cleanups);
 445 }
 446
 447 /* Print symbol ARGS->SYMBOL on ARGS->OUTFILE.  ARGS->DEPTH says how
 448    far to indent.  ARGS is really a struct print_symbol_args *, but is
 449    declared as char * to get it past catch_errors.  Returns 0 for error,
 450    1 for success.  */
 451
 452 static int
 453 print_symbol (void *args)
 454 {
 455   struct gdbarch *gdbarch = ((struct print_symbol_args *) args)->gdbarch;
 456   struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
 457   int depth = ((struct print_symbol_args *) args)->depth;
 458   struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
 459   struct obj_section *section = SYMBOL_OBJ_SECTION (symbol);
 460
 461   print_spaces (depth, outfile);
 462   if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
 463     {
 464       fprintf_filtered (outfile, "label %s at ", SYMBOL_PRINT_NAME (symbol));
 465       fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 466                       outfile);
 467       if (section)
 468         fprintf_filtered (outfile, " section %s\n",
 469                           bfd_section_name (section->the_bfd_section->owner,
 470                                             section->the_bfd_section));
 471       else
 472         fprintf_filtered (outfile, "\n");
 473       return 1;
 474     }
 475   if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
 476     {
 477       if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
 478         {
 479           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 480         }
 481       else
 482         {
 483           fprintf_filtered (outfile, "%s %s = ",
 484                          (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
 485                           ? "enum"
 486                      : (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
 487                         ? "struct" : "union")),
 488                             SYMBOL_LINKAGE_NAME (symbol));
 489           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 490         }
 491       fprintf_filtered (outfile, ";\n");
 492     }
 493   else
 494     {
 495       if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 496         fprintf_filtered (outfile, "typedef ");
 497       if (SYMBOL_TYPE (symbol))
 498         {
 499           /* Print details of types, except for enums where it's clutter.  */
 500           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_PRINT_NAME (symbol),
 501                          outfile,
 502                          TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
 503                          depth);
 504           fprintf_filtered (outfile, "; ");
 505         }
 506       else
 507         fprintf_filtered (outfile, "%s ", SYMBOL_PRINT_NAME (symbol));
 508
 509       switch (SYMBOL_CLASS (symbol))
 510         {
 511         case LOC_CONST:
 512           fprintf_filtered (outfile, "const %ld (0x%lx)",
 513                             SYMBOL_VALUE (symbol),
 514                             SYMBOL_VALUE (symbol));
 515           break;
 516
 517         case LOC_CONST_BYTES:
 518           {
 519             unsigned i;
 520             struct type *type = check_typedef (SYMBOL_TYPE (symbol));
 521
 522             fprintf_filtered (outfile, "const %u hex bytes:",
 523                               TYPE_LENGTH (type));
 524             for (i = 0; i < TYPE_LENGTH (type); i++)
 525               fprintf_filtered (outfile, " %02x",
 526                                 (unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
 527           }
 528           break;
 529
 530         case LOC_STATIC:
 531           fprintf_filtered (outfile, "static at ");
 532           fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 533                           outfile);
 534           if (section)
 535             fprintf_filtered (outfile, " section %s",
 536                               bfd_section_name (section->the_bfd_section->owner,
 537                                                 section->the_bfd_section));
 538           break;
 539
 540         case LOC_REGISTER:
 541           if (SYMBOL_IS_ARGUMENT (symbol))
 542             fprintf_filtered (outfile, "parameter register %ld",
 543                               SYMBOL_VALUE (symbol));
 544           else
 545             fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
 546           break;
 547
 548         case LOC_ARG:
 549           fprintf_filtered (outfile, "arg at offset 0x%lx",
 550                             SYMBOL_VALUE (symbol));
 551           break;
 552
 553         case LOC_REF_ARG:
 554           fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
 555           break;
 556
 557         case LOC_REGPARM_ADDR:
 558           fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
 559           break;
 560
 561         case LOC_LOCAL:
 562           fprintf_filtered (outfile, "local at offset 0x%lx",
 563                             SYMBOL_VALUE (symbol));
 564           break;
 565
 566         case LOC_TYPEDEF:
 567           break;
 568
 569         case LOC_LABEL:
 570           fprintf_filtered (outfile, "label at ");
 571           fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 572                           outfile);
 573           if (section)
 574             fprintf_filtered (outfile, " section %s",
 575                               bfd_section_name (section->the_bfd_section->owner,
 576                                                 section->the_bfd_section));
 577           break;
 578
 579         case LOC_BLOCK:
 580           fprintf_filtered (outfile, "block object ");
 581           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 582           fprintf_filtered (outfile, ", ");
 583           fputs_filtered (paddress (gdbarch,
 584                                     BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
 585                           outfile);
 586           fprintf_filtered (outfile, "..");
 587           fputs_filtered (paddress (gdbarch,
 588                                     BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
 589                           outfile);
 590           if (section)
 591             fprintf_filtered (outfile, " section %s",
 592                               bfd_section_name (section->the_bfd_section->owner,
 593                                                 section->the_bfd_section));
 594           break;
 595
 596         case LOC_COMPUTED:
 597           fprintf_filtered (outfile, "computed at runtime");
 598           break;
 599
 600         case LOC_UNRESOLVED:
 601           fprintf_filtered (outfile, "unresolved");
 602           break;
 603
 604         case LOC_OPTIMIZED_OUT:
 605           fprintf_filtered (outfile, "optimized out");
 606           break;
 607
 608         default:
 609           fprintf_filtered (outfile, "botched symbol class %x",
 610                             SYMBOL_CLASS (symbol));
 611           break;
 612         }
 613     }
 614   fprintf_filtered (outfile, "\n");
 615   return 1;
 616 }
 617
 618 void
 619 maintenance_print_msymbols (char *args, int from_tty)
 620 {
 621   char **argv;
 622   struct ui_file *outfile;
 623   struct cleanup *cleanups;
 624   char *filename = DEV_TTY;
 625   char *symname = NULL;
 626   struct program_space *pspace;
 627   struct objfile *objfile;
 628
 629   struct stat sym_st, obj_st;
 630
 631   dont_repeat ();
 632
 633   if (args == NULL)
 634     {
 635       error (_("print-msymbols takes an output file "
 636                "name and optional symbol file name"));
 637     }
 638   argv = gdb_buildargv (args);
 639   cleanups = make_cleanup_freeargv (argv);
 640
 641   if (argv[0] != NULL)
 642     {
 643       filename = argv[0];
 644       /* If a second arg is supplied, it is a source file name to match on.  */
 645       if (argv[1] != NULL)
 646         {
 647           symname = xfullpath (argv[1]);
 648           make_cleanup (xfree, symname);
 649           if (symname && stat (symname, &sym_st))
 650             perror_with_name (symname);
 651         }
 652     }
 653
 654   filename = tilde_expand (filename);
 655   make_cleanup (xfree, filename);
 656
 657   outfile = gdb_fopen (filename, FOPEN_WT);
 658   if (outfile == 0)
 659     perror_with_name (filename);
 660   make_cleanup_ui_file_delete (outfile);
 661
 662   immediate_quit++;
 663   ALL_PSPACES (pspace)
 664     ALL_PSPACE_OBJFILES (pspace, objfile)
 665       if (symname == NULL || (!stat (objfile->name, &obj_st)
 666                               && sym_st.st_ino == obj_st.st_ino))
 667         dump_msymbols (objfile, outfile);
 668   immediate_quit--;
 669   fprintf_filtered (outfile, "\n\n");
 670   do_cleanups (cleanups);
 671 }
 672
 673 void
 674 maintenance_print_objfiles (char *ignore, int from_tty)
 675 {
 676   struct program_space *pspace;
 677   struct objfile *objfile;
 678
 679   dont_repeat ();
 680
 681   immediate_quit++;
 682   ALL_PSPACES (pspace)
 683     ALL_PSPACE_OBJFILES (pspace, objfile)
 684       dump_objfile (objfile);
 685   immediate_quit--;
 686 }
 687
 688
 689 /* List all the symbol tables whose names match REGEXP (optional).  */
 690 void
 691 maintenance_info_symtabs (char *regexp, int from_tty)
 692 {
 693   struct program_space *pspace;
 694   struct objfile *objfile;
 695
 696   if (regexp)
 697     re_comp (regexp);
 698
 699   ALL_PSPACES (pspace)
 700     ALL_PSPACE_OBJFILES (pspace, objfile)
 701     {
 702       struct symtab *symtab;
 703
 704       /* We don't want to print anything for this objfile until we
 705          actually find a symtab whose name matches.  */
 706       int printed_objfile_start = 0;
 707
 708       ALL_OBJFILE_SYMTABS (objfile, symtab)
 709         {
 710           QUIT;
 711
 712           if (! regexp
 713               || re_exec (symtab->filename))
 714             {
 715               if (! printed_objfile_start)
 716                 {
 717                   printf_filtered ("{ objfile %s ", objfile->name);
 718                   wrap_here ("  ");
 719                   printf_filtered ("((struct objfile *) %s)\n",
 720                                    host_address_to_string (objfile));
 721                   printed_objfile_start = 1;
 722                 }
 723
 724               printf_filtered ("        { symtab %s ", symtab->filename);
 725               wrap_here ("    ");
 726               printf_filtered ("((struct symtab *) %s)\n",
 727                                host_address_to_string (symtab));
 728               printf_filtered ("          dirname %s\n",
 729                                symtab->dirname ? symtab->dirname : "(null)");
 730               printf_filtered ("          fullname %s\n",
 731                                symtab->fullname ? symtab->fullname : "(null)");
 732               printf_filtered ("          "
 733                                "blockvector ((struct blockvector *) %s)%s\n",
 734                                host_address_to_string (symtab->blockvector),
 735                                symtab->primary ? " (primary)" : "");
 736               printf_filtered ("          "
 737                                "linetable ((struct linetable *) %s)\n",
 738                                host_address_to_string (symtab->linetable));
 739               printf_filtered ("          debugformat %s\n",
 740                                symtab->debugformat);
 741               printf_filtered ("        }\n");
 742             }
 743         }
 744
 745       if (printed_objfile_start)
 746         printf_filtered ("}\n");
 747     }
 748 }
 749 \f
 750
 751 /* Return the nexting depth of a block within other blocks in its symtab.  */
 752
 753 static int
 754 block_depth (struct block *block)
 755 {
 756   int i = 0;
 757
 758   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
 759     {
 760       i++;
 761     }
 762   return i;
 763 }
 764 \f
 765
 766 /* Do early runtime initializations.  */
 767 void
 768 _initialize_symmisc (void)
 769 {
 770   std_in = stdin;
 771   std_out = stdout;
 772   std_err = stderr;
 773 }