gdb/symmisc.c

   1 /* Do various things to symbol tables (other than lookup), for GDB.
   2
   3    Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
   4    1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007, 2008, 2009, 2010,
   5    2011 Free Software Foundation, Inc.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include "defs.h"
  23 #include "symtab.h"
  24 #include "gdbtypes.h"
  25 #include "bfd.h"
  26 #include "filenames.h"
  27 #include "symfile.h"
  28 #include "objfiles.h"
  29 #include "breakpoint.h"
  30 #include "command.h"
  31 #include "gdb_obstack.h"
  32 #include "exceptions.h"
  33 #include "language.h"
  34 #include "bcache.h"
  35 #include "block.h"
  36 #include "gdb_regex.h"
  37 #include "gdb_stat.h"
  38 #include "dictionary.h"
  39
  40 #include "gdb_string.h"
  41 #include "readline/readline.h"
  42
  43 #include "psymtab.h"
  44
  45 #ifndef DEV_TTY
  46 #define DEV_TTY "/dev/tty"
  47 #endif
  48
  49 /* Unfortunately for debugging, stderr is usually a macro.  This is painful
  50    when calling functions that take FILE *'s from the debugger.
  51    So we make a variable which has the same value and which is accessible when
  52    debugging GDB with itself.  Because stdin et al need not be constants,
  53    we initialize them in the _initialize_symmisc function at the bottom
  54    of the file.  */
  55 FILE *std_in;
  56 FILE *std_out;
  57 FILE *std_err;
  58
  59 /* Prototypes for local functions */
  60
  61 static void dump_symtab (struct objfile *, struct symtab *,
  62                          struct ui_file *);
  63
  64 static void dump_msymbols (struct objfile *, struct ui_file *);
  65
  66 static void dump_objfile (struct objfile *);
  67
  68 static int block_depth (struct block *);
  69
  70 void _initialize_symmisc (void);
  71
  72 struct print_symbol_args
  73   {
  74     struct gdbarch *gdbarch;
  75     struct symbol *symbol;
  76     int depth;
  77     struct ui_file *outfile;
  78   };
  79
  80 static int print_symbol (void *);
  81 \f
  82
  83 void
  84 print_symbol_bcache_statistics (void)
  85 {
  86   struct program_space *pspace;
  87   struct objfile *objfile;
  88
  89   immediate_quit++;
  90   ALL_PSPACES (pspace)
  91     ALL_PSPACE_OBJFILES (pspace, objfile)
  92   {
  93     printf_filtered (_("Byte cache statistics for '%s':\n"), objfile->name);
  94     print_bcache_statistics (psymbol_bcache_get_bcache (objfile->psymbol_cache),
  95                              "partial symbol cache");
  96     print_bcache_statistics (objfile->macro_cache, "preprocessor macro cache");
  97     print_bcache_statistics (objfile->filename_cache, "file name cache");
  98   }
  99   immediate_quit--;
 100 }
 101
 102 void
 103 print_objfile_statistics (void)
 104 {
 105   struct program_space *pspace;
 106   struct objfile *objfile;
 107   struct symtab *s;
 108   int i, linetables, blockvectors;
 109
 110   immediate_quit++;
 111   ALL_PSPACES (pspace)
 112     ALL_PSPACE_OBJFILES (pspace, objfile)
 113   {
 114     printf_filtered (_("Statistics for '%s':\n"), objfile->name);
 115     if (OBJSTAT (objfile, n_stabs) > 0)
 116       printf_filtered (_("  Number of \"stab\" symbols read: %d\n"),
 117                        OBJSTAT (objfile, n_stabs));
 118     if (OBJSTAT (objfile, n_minsyms) > 0)
 119       printf_filtered (_("  Number of \"minimal\" symbols read: %d\n"),
 120                        OBJSTAT (objfile, n_minsyms));
 121     if (OBJSTAT (objfile, n_psyms) > 0)
 122       printf_filtered (_("  Number of \"partial\" symbols read: %d\n"),
 123                        OBJSTAT (objfile, n_psyms));
 124     if (OBJSTAT (objfile, n_syms) > 0)
 125       printf_filtered (_("  Number of \"full\" symbols read: %d\n"),
 126                        OBJSTAT (objfile, n_syms));
 127     if (OBJSTAT (objfile, n_types) > 0)
 128       printf_filtered (_("  Number of \"types\" defined: %d\n"),
 129                        OBJSTAT (objfile, n_types));
 130     if (objfile->sf)
 131       objfile->sf->qf->print_stats (objfile);
 132     i = linetables = blockvectors = 0;
 133     ALL_OBJFILE_SYMTABS (objfile, s)
 134       {
 135         i++;
 136         if (s->linetable != NULL)
 137           linetables++;
 138         if (s->primary == 1)
 139           blockvectors++;
 140       }
 141     printf_filtered (_("  Number of symbol tables: %d\n"), i);
 142     printf_filtered (_("  Number of symbol tables with line tables: %d\n"),
 143                      linetables);
 144     printf_filtered (_("  Number of symbol tables with blockvectors: %d\n"),
 145                      blockvectors);
 146
 147     if (OBJSTAT (objfile, sz_strtab) > 0)
 148       printf_filtered (_("  Space used by a.out string tables: %d\n"),
 149                        OBJSTAT (objfile, sz_strtab));
 150     printf_filtered (_("  Total memory used for objfile obstack: %d\n"),
 151                      obstack_memory_used (&objfile->objfile_obstack));
 152     printf_filtered (_("  Total memory used for psymbol cache: %d\n"),
 153                      bcache_memory_used (psymbol_bcache_get_bcache
 154                                           (objfile->psymbol_cache)));
 155     printf_filtered (_("  Total memory used for macro cache: %d\n"),
 156                      bcache_memory_used (objfile->macro_cache));
 157     printf_filtered (_("  Total memory used for file name cache: %d\n"),
 158                      bcache_memory_used (objfile->filename_cache));
 159   }
 160   immediate_quit--;
 161 }
 162
 163 static void
 164 dump_objfile (struct objfile *objfile)
 165 {
 166   struct symtab *symtab;
 167
 168   printf_filtered ("\nObject file %s:  ", objfile->name);
 169   printf_filtered ("Objfile at ");
 170   gdb_print_host_address (objfile, gdb_stdout);
 171   printf_filtered (", bfd at ");
 172   gdb_print_host_address (objfile->obfd, gdb_stdout);
 173   printf_filtered (", %d minsyms\n\n",
 174                    objfile->minimal_symbol_count);
 175
 176   if (objfile->sf)
 177     objfile->sf->qf->dump (objfile);
 178
 179   if (objfile->symtabs)
 180     {
 181       printf_filtered ("Symtabs:\n");
 182       for (symtab = objfile->symtabs;
 183            symtab != NULL;
 184            symtab = symtab->next)
 185         {
 186           printf_filtered ("%s at ", symtab->filename);
 187           gdb_print_host_address (symtab, gdb_stdout);
 188           printf_filtered (", ");
 189           if (symtab->objfile != objfile)
 190             {
 191               printf_filtered ("NOT ON CHAIN!  ");
 192             }
 193           wrap_here ("  ");
 194         }
 195       printf_filtered ("\n\n");
 196     }
 197 }
 198
 199 /* Print minimal symbols from this objfile.  */
 200
 201 static void
 202 dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
 203 {
 204   struct gdbarch *gdbarch = get_objfile_arch (objfile);
 205   struct minimal_symbol *msymbol;
 206   int index;
 207   char ms_type;
 208
 209   fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
 210   if (objfile->minimal_symbol_count == 0)
 211     {
 212       fprintf_filtered (outfile, "No minimal symbols found.\n");
 213       return;
 214     }
 215   index = 0;
 216   ALL_OBJFILE_MSYMBOLS (objfile, msymbol)
 217     {
 218       struct obj_section *section = SYMBOL_OBJ_SECTION (msymbol);
 219
 220       switch (MSYMBOL_TYPE (msymbol))
 221         {
 222         case mst_unknown:
 223           ms_type = 'u';
 224           break;
 225         case mst_text:
 226           ms_type = 'T';
 227           break;
 228         case mst_text_gnu_ifunc:
 229           ms_type = 'i';
 230           break;
 231         case mst_solib_trampoline:
 232           ms_type = 'S';
 233           break;
 234         case mst_data:
 235           ms_type = 'D';
 236           break;
 237         case mst_bss:
 238           ms_type = 'B';
 239           break;
 240         case mst_abs:
 241           ms_type = 'A';
 242           break;
 243         case mst_file_text:
 244           ms_type = 't';
 245           break;
 246         case mst_file_data:
 247           ms_type = 'd';
 248           break;
 249         case mst_file_bss:
 250           ms_type = 'b';
 251           break;
 252         default:
 253           ms_type = '?';
 254           break;
 255         }
 256       fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
 257       fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msymbol)),
 258                       outfile);
 259       fprintf_filtered (outfile, " %s", SYMBOL_LINKAGE_NAME (msymbol));
 260       if (section)
 261         fprintf_filtered (outfile, " section %s",
 262                           bfd_section_name (objfile->obfd,
 263                                             section->the_bfd_section));
 264       if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
 265         {
 266           fprintf_filtered (outfile, "  %s", SYMBOL_DEMANGLED_NAME (msymbol));
 267         }
 268       if (msymbol->filename)
 269         fprintf_filtered (outfile, "  %s", msymbol->filename);
 270       fputs_filtered ("\n", outfile);
 271       index++;
 272     }
 273   if (objfile->minimal_symbol_count != index)
 274     {
 275       warning (_("internal error:  minimal symbol count %d != %d"),
 276                objfile->minimal_symbol_count, index);
 277     }
 278   fprintf_filtered (outfile, "\n");
 279 }
 280
 281 static void
 282 dump_symtab_1 (struct objfile *objfile, struct symtab *symtab,
 283                struct ui_file *outfile)
 284 {
 285   struct gdbarch *gdbarch = get_objfile_arch (objfile);
 286   int i;
 287   struct dict_iterator iter;
 288   int len;
 289   struct linetable *l;
 290   struct blockvector *bv;
 291   struct symbol *sym;
 292   struct block *b;
 293   int depth;
 294
 295   fprintf_filtered (outfile, "\nSymtab for file %s\n", symtab->filename);
 296   if (symtab->dirname)
 297     fprintf_filtered (outfile, "Compilation directory is %s\n",
 298                       symtab->dirname);
 299   fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
 300   gdb_print_host_address (objfile, outfile);
 301   fprintf_filtered (outfile, ")\n");
 302   fprintf_filtered (outfile, "Language: %s\n",
 303                     language_str (symtab->language));
 304
 305   /* First print the line table.  */
 306   l = LINETABLE (symtab);
 307   if (l)
 308     {
 309       fprintf_filtered (outfile, "\nLine table:\n\n");
 310       len = l->nitems;
 311       for (i = 0; i < len; i++)
 312         {
 313           fprintf_filtered (outfile, " line %d at ", l->item[i].line);
 314           fputs_filtered (paddress (gdbarch, l->item[i].pc), outfile);
 315           fprintf_filtered (outfile, "\n");
 316         }
 317     }
 318   /* Now print the block info, but only for primary symtabs since we will
 319      print lots of duplicate info otherwise.  */
 320   if (symtab->primary)
 321     {
 322       fprintf_filtered (outfile, "\nBlockvector:\n\n");
 323       bv = BLOCKVECTOR (symtab);
 324       len = BLOCKVECTOR_NBLOCKS (bv);
 325       for (i = 0; i < len; i++)
 326         {
 327           b = BLOCKVECTOR_BLOCK (bv, i);
 328           depth = block_depth (b) * 2;
 329           print_spaces (depth, outfile);
 330           fprintf_filtered (outfile, "block #%03d, object at ", i);
 331           gdb_print_host_address (b, outfile);
 332           if (BLOCK_SUPERBLOCK (b))
 333             {
 334               fprintf_filtered (outfile, " under ");
 335               gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
 336             }
 337           /* drow/2002-07-10: We could save the total symbols count
 338              even if we're using a hashtable, but nothing else but this message
 339              wants it.  */
 340           fprintf_filtered (outfile, ", %d syms/buckets in ",
 341                             dict_size (BLOCK_DICT (b)));
 342           fputs_filtered (paddress (gdbarch, BLOCK_START (b)), outfile);
 343           fprintf_filtered (outfile, "..");
 344           fputs_filtered (paddress (gdbarch, BLOCK_END (b)), outfile);
 345           if (BLOCK_FUNCTION (b))
 346             {
 347               fprintf_filtered (outfile, ", function %s",
 348                                 SYMBOL_LINKAGE_NAME (BLOCK_FUNCTION (b)));
 349               if (SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)) != NULL)
 350                 {
 351                   fprintf_filtered (outfile, ", %s",
 352                                 SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)));
 353                 }
 354             }
 355           fprintf_filtered (outfile, "\n");
 356           /* Now print each symbol in this block (in no particular order, if
 357              we're using a hashtable).  */
 358           ALL_BLOCK_SYMBOLS (b, iter, sym)
 359             {
 360               struct print_symbol_args s;
 361
 362               s.gdbarch = gdbarch;
 363               s.symbol = sym;
 364               s.depth = depth + 1;
 365               s.outfile = outfile;
 366               catch_errors (print_symbol, &s, "Error printing symbol:\n",
 367                             RETURN_MASK_ERROR);
 368             }
 369         }
 370       fprintf_filtered (outfile, "\n");
 371     }
 372   else
 373     {
 374       fprintf_filtered (outfile, "\nBlockvector same as previous symtab\n\n");
 375     }
 376 }
 377
 378 static void
 379 dump_symtab (struct objfile *objfile, struct symtab *symtab,
 380              struct ui_file *outfile)
 381 {
 382   /* Set the current language to the language of the symtab we're dumping
 383      because certain routines used during dump_symtab() use the current
 384      language to print an image of the symbol.  We'll restore it later.
 385      But use only real languages, not placeholders.  */
 386   if (symtab->language != language_unknown
 387       && symtab->language != language_auto)
 388     {
 389       enum language saved_lang;
 390
 391       saved_lang = set_language (symtab->language);
 392
 393       dump_symtab_1 (objfile, symtab, outfile);
 394
 395       set_language (saved_lang);
 396     }
 397   else
 398     dump_symtab_1 (objfile, symtab, outfile);
 399 }
 400
 401 void
 402 maintenance_print_symbols (char *args, int from_tty)
 403 {
 404   char **argv;
 405   struct ui_file *outfile;
 406   struct cleanup *cleanups;
 407   char *symname = NULL;
 408   char *filename = DEV_TTY;
 409   struct objfile *objfile;
 410   struct symtab *s;
 411
 412   dont_repeat ();
 413
 414   if (args == NULL)
 415     {
 416       error (_("Arguments missing: an output file name "
 417                "and an optional symbol file name"));
 418     }
 419   argv = gdb_buildargv (args);
 420   cleanups = make_cleanup_freeargv (argv);
 421
 422   if (argv[0] != NULL)
 423     {
 424       filename = argv[0];
 425       /* If a second arg is supplied, it is a source file name to match on.  */
 426       if (argv[1] != NULL)
 427         {
 428           symname = argv[1];
 429         }
 430     }
 431
 432   filename = tilde_expand (filename);
 433   make_cleanup (xfree, filename);
 434
 435   outfile = gdb_fopen (filename, FOPEN_WT);
 436   if (outfile == 0)
 437     perror_with_name (filename);
 438   make_cleanup_ui_file_delete (outfile);
 439
 440   immediate_quit++;
 441   ALL_SYMTABS (objfile, s)
 442     if (symname == NULL || filename_cmp (symname, s->filename) == 0)
 443     dump_symtab (objfile, s, outfile);
 444   immediate_quit--;
 445   do_cleanups (cleanups);
 446 }
 447
 448 /* Print symbol ARGS->SYMBOL on ARGS->OUTFILE.  ARGS->DEPTH says how
 449    far to indent.  ARGS is really a struct print_symbol_args *, but is
 450    declared as char * to get it past catch_errors.  Returns 0 for error,
 451    1 for success.  */
 452
 453 static int
 454 print_symbol (void *args)
 455 {
 456   struct gdbarch *gdbarch = ((struct print_symbol_args *) args)->gdbarch;
 457   struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
 458   int depth = ((struct print_symbol_args *) args)->depth;
 459   struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
 460   struct obj_section *section = SYMBOL_OBJ_SECTION (symbol);
 461
 462   print_spaces (depth, outfile);
 463   if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
 464     {
 465       fprintf_filtered (outfile, "label %s at ", SYMBOL_PRINT_NAME (symbol));
 466       fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 467                       outfile);
 468       if (section)
 469         fprintf_filtered (outfile, " section %s\n",
 470                           bfd_section_name (section->the_bfd_section->owner,
 471                                             section->the_bfd_section));
 472       else
 473         fprintf_filtered (outfile, "\n");
 474       return 1;
 475     }
 476   if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
 477     {
 478       if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
 479         {
 480           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 481         }
 482       else
 483         {
 484           fprintf_filtered (outfile, "%s %s = ",
 485                          (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
 486                           ? "enum"
 487                      : (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
 488                         ? "struct" : "union")),
 489                             SYMBOL_LINKAGE_NAME (symbol));
 490           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 491         }
 492       fprintf_filtered (outfile, ";\n");
 493     }
 494   else
 495     {
 496       if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 497         fprintf_filtered (outfile, "typedef ");
 498       if (SYMBOL_TYPE (symbol))
 499         {
 500           /* Print details of types, except for enums where it's clutter.  */
 501           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_PRINT_NAME (symbol),
 502                          outfile,
 503                          TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
 504                          depth);
 505           fprintf_filtered (outfile, "; ");
 506         }
 507       else
 508         fprintf_filtered (outfile, "%s ", SYMBOL_PRINT_NAME (symbol));
 509
 510       switch (SYMBOL_CLASS (symbol))
 511         {
 512         case LOC_CONST:
 513           fprintf_filtered (outfile, "const %ld (0x%lx)",
 514                             SYMBOL_VALUE (symbol),
 515                             SYMBOL_VALUE (symbol));
 516           break;
 517
 518         case LOC_CONST_BYTES:
 519           {
 520             unsigned i;
 521             struct type *type = check_typedef (SYMBOL_TYPE (symbol));
 522
 523             fprintf_filtered (outfile, "const %u hex bytes:",
 524                               TYPE_LENGTH (type));
 525             for (i = 0; i < TYPE_LENGTH (type); i++)
 526               fprintf_filtered (outfile, " %02x",
 527                                 (unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
 528           }
 529           break;
 530
 531         case LOC_STATIC:
 532           fprintf_filtered (outfile, "static at ");
 533           fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 534                           outfile);
 535           if (section)
 536             fprintf_filtered (outfile, " section %s",
 537                               bfd_section_name (section->the_bfd_section->owner,
 538                                                 section->the_bfd_section));
 539           break;
 540
 541         case LOC_REGISTER:
 542           if (SYMBOL_IS_ARGUMENT (symbol))
 543             fprintf_filtered (outfile, "parameter register %ld",
 544                               SYMBOL_VALUE (symbol));
 545           else
 546             fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
 547           break;
 548
 549         case LOC_ARG:
 550           fprintf_filtered (outfile, "arg at offset 0x%lx",
 551                             SYMBOL_VALUE (symbol));
 552           break;
 553
 554         case LOC_REF_ARG:
 555           fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
 556           break;
 557
 558         case LOC_REGPARM_ADDR:
 559           fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
 560           break;
 561
 562         case LOC_LOCAL:
 563           fprintf_filtered (outfile, "local at offset 0x%lx",
 564                             SYMBOL_VALUE (symbol));
 565           break;
 566
 567         case LOC_TYPEDEF:
 568           break;
 569
 570         case LOC_LABEL:
 571           fprintf_filtered (outfile, "label at ");
 572           fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (symbol)),
 573                           outfile);
 574           if (section)
 575             fprintf_filtered (outfile, " section %s",
 576                               bfd_section_name (section->the_bfd_section->owner,
 577                                                 section->the_bfd_section));
 578           break;
 579
 580         case LOC_BLOCK:
 581           fprintf_filtered (outfile, "block object ");
 582           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 583           fprintf_filtered (outfile, ", ");
 584           fputs_filtered (paddress (gdbarch,
 585                                     BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
 586                           outfile);
 587           fprintf_filtered (outfile, "..");
 588           fputs_filtered (paddress (gdbarch,
 589                                     BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
 590                           outfile);
 591           if (section)
 592             fprintf_filtered (outfile, " section %s",
 593                               bfd_section_name (section->the_bfd_section->owner,
 594                                                 section->the_bfd_section));
 595           break;
 596
 597         case LOC_COMPUTED:
 598           fprintf_filtered (outfile, "computed at runtime");
 599           break;
 600
 601         case LOC_UNRESOLVED:
 602           fprintf_filtered (outfile, "unresolved");
 603           break;
 604
 605         case LOC_OPTIMIZED_OUT:
 606           fprintf_filtered (outfile, "optimized out");
 607           break;
 608
 609         default:
 610           fprintf_filtered (outfile, "botched symbol class %x",
 611                             SYMBOL_CLASS (symbol));
 612           break;
 613         }
 614     }
 615   fprintf_filtered (outfile, "\n");
 616   return 1;
 617 }
 618
 619 void
 620 maintenance_print_msymbols (char *args, int from_tty)
 621 {
 622   char **argv;
 623   struct ui_file *outfile;
 624   struct cleanup *cleanups;
 625   char *filename = DEV_TTY;
 626   char *symname = NULL;
 627   struct program_space *pspace;
 628   struct objfile *objfile;
 629
 630   struct stat sym_st, obj_st;
 631
 632   dont_repeat ();
 633
 634   if (args == NULL)
 635     {
 636       error (_("print-msymbols takes an output file "
 637                "name and optional symbol file name"));
 638     }
 639   argv = gdb_buildargv (args);
 640   cleanups = make_cleanup_freeargv (argv);
 641
 642   if (argv[0] != NULL)
 643     {
 644       filename = argv[0];
 645       /* If a second arg is supplied, it is a source file name to match on.  */
 646       if (argv[1] != NULL)
 647         {
 648           symname = xfullpath (argv[1]);
 649           make_cleanup (xfree, symname);
 650           if (symname && stat (symname, &sym_st))
 651             perror_with_name (symname);
 652         }
 653     }
 654
 655   filename = tilde_expand (filename);
 656   make_cleanup (xfree, filename);
 657
 658   outfile = gdb_fopen (filename, FOPEN_WT);
 659   if (outfile == 0)
 660     perror_with_name (filename);
 661   make_cleanup_ui_file_delete (outfile);
 662
 663   immediate_quit++;
 664   ALL_PSPACES (pspace)
 665     ALL_PSPACE_OBJFILES (pspace, objfile)
 666       if (symname == NULL || (!stat (objfile->name, &obj_st)
 667                               && sym_st.st_ino == obj_st.st_ino))
 668         dump_msymbols (objfile, outfile);
 669   immediate_quit--;
 670   fprintf_filtered (outfile, "\n\n");
 671   do_cleanups (cleanups);
 672 }
 673
 674 void
 675 maintenance_print_objfiles (char *ignore, int from_tty)
 676 {
 677   struct program_space *pspace;
 678   struct objfile *objfile;
 679
 680   dont_repeat ();
 681
 682   immediate_quit++;
 683   ALL_PSPACES (pspace)
 684     ALL_PSPACE_OBJFILES (pspace, objfile)
 685       dump_objfile (objfile);
 686   immediate_quit--;
 687 }
 688
 689
 690 /* List all the symbol tables whose names match REGEXP (optional).  */
 691 void
 692 maintenance_info_symtabs (char *regexp, int from_tty)
 693 {
 694   struct program_space *pspace;
 695   struct objfile *objfile;
 696
 697   if (regexp)
 698     re_comp (regexp);
 699
 700   ALL_PSPACES (pspace)
 701     ALL_PSPACE_OBJFILES (pspace, objfile)
 702     {
 703       struct symtab *symtab;
 704
 705       /* We don't want to print anything for this objfile until we
 706          actually find a symtab whose name matches.  */
 707       int printed_objfile_start = 0;
 708
 709       ALL_OBJFILE_SYMTABS (objfile, symtab)
 710         {
 711           QUIT;
 712
 713           if (! regexp
 714               || re_exec (symtab->filename))
 715             {
 716               if (! printed_objfile_start)
 717                 {
 718                   printf_filtered ("{ objfile %s ", objfile->name);
 719                   wrap_here ("  ");
 720                   printf_filtered ("((struct objfile *) %s)\n",
 721                                    host_address_to_string (objfile));
 722                   printed_objfile_start = 1;
 723                 }
 724
 725               printf_filtered ("        { symtab %s ", symtab->filename);
 726               wrap_here ("    ");
 727               printf_filtered ("((struct symtab *) %s)\n",
 728                                host_address_to_string (symtab));
 729               printf_filtered ("          dirname %s\n",
 730                                symtab->dirname ? symtab->dirname : "(null)");
 731               printf_filtered ("          fullname %s\n",
 732                                symtab->fullname ? symtab->fullname : "(null)");
 733               printf_filtered ("          "
 734                                "blockvector ((struct blockvector *) %s)%s\n",
 735                                host_address_to_string (symtab->blockvector),
 736                                symtab->primary ? " (primary)" : "");
 737               printf_filtered ("          "
 738                                "linetable ((struct linetable *) %s)\n",
 739                                host_address_to_string (symtab->linetable));
 740               printf_filtered ("          debugformat %s\n",
 741                                symtab->debugformat);
 742               printf_filtered ("        }\n");
 743             }
 744         }
 745
 746       if (printed_objfile_start)
 747         printf_filtered ("}\n");
 748     }
 749 }
 750 \f
 751
 752 /* Return the nexting depth of a block within other blocks in its symtab.  */
 753
 754 static int
 755 block_depth (struct block *block)
 756 {
 757   int i = 0;
 758
 759   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
 760     {
 761       i++;
 762     }
 763   return i;
 764 }
 765 \f
 766
 767 /* Do early runtime initializations.  */
 768 void
 769 _initialize_symmisc (void)
 770 {
 771   std_in = stdin;
 772   std_out = stdout;
 773   std_err = stderr;
 774 }