gdb/symmisc.c

   1 /* Do various things to symbol tables (other than lookup), for GDB.
   2
   3    Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
   4    1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004 Free Software
   5    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 2 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, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA.  */
  23
  24 #include "defs.h"
  25 #include "symtab.h"
  26 #include "gdbtypes.h"
  27 #include "bfd.h"
  28 #include "symfile.h"
  29 #include "objfiles.h"
  30 #include "breakpoint.h"
  31 #include "command.h"
  32 #include "gdb_obstack.h"
  33 #include "exceptions.h"
  34 #include "language.h"
  35 #include "bcache.h"
  36 #include "block.h"
  37 #include "gdb_regex.h"
  38 #include "gdb_stat.h"
  39 #include "dictionary.h"
  40
  41 #include "gdb_string.h"
  42 #include "readline/readline.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_psymtab (struct objfile *, struct partial_symtab *,
  64                           struct ui_file *);
  65
  66 static void dump_msymbols (struct objfile *, struct ui_file *);
  67
  68 static void dump_objfile (struct objfile *);
  69
  70 static int block_depth (struct block *);
  71
  72 static void print_partial_symbols (struct partial_symbol **, int,
  73                                    char *, struct ui_file *);
  74
  75 static void free_symtab_block (struct objfile *, struct block *);
  76
  77 void _initialize_symmisc (void);
  78
  79 struct print_symbol_args
  80   {
  81     struct symbol *symbol;
  82     int depth;
  83     struct ui_file *outfile;
  84   };
  85
  86 static int print_symbol (void *);
  87
  88 static void free_symtab_block (struct objfile *, struct block *);
  89 \f
  90
  91 /* Free a struct block <- B and all the symbols defined in that block.  */
  92
  93 /* FIXME: carlton/2003-04-28: I don't believe this is currently ever
  94    used.  */
  95
  96 static void
  97 free_symtab_block (struct objfile *objfile, struct block *b)
  98 {
  99   struct dict_iterator iter;
 100   struct symbol *sym;
 101
 102   ALL_BLOCK_SYMBOLS (b, iter, sym)
 103     {
 104       xfree (DEPRECATED_SYMBOL_NAME (sym));
 105       xfree (sym);
 106     }
 107
 108   dict_free (BLOCK_DICT (b));
 109   xfree (b);
 110 }
 111
 112 /* Free all the storage associated with the struct symtab <- S.
 113    Note that some symtabs have contents malloc'ed structure by structure,
 114    while some have contents that all live inside one big block of memory,
 115    and some share the contents of another symbol table and so you should
 116    not free the contents on their behalf (except sometimes the linetable,
 117    which maybe per symtab even when the rest is not).
 118    It is s->free_code that says which alternative to use.  */
 119
 120 void
 121 free_symtab (struct symtab *s)
 122 {
 123   int i, n;
 124   struct blockvector *bv;
 125
 126   switch (s->free_code)
 127     {
 128     case free_nothing:
 129       /* All the contents are part of a big block of memory (an obstack),
 130          and some other symtab is in charge of freeing that block.
 131          Therefore, do nothing.  */
 132       break;
 133
 134     case free_contents:
 135       /* Here all the contents were malloc'ed structure by structure
 136          and must be freed that way.  */
 137       /* First free the blocks (and their symbols.  */
 138       bv = BLOCKVECTOR (s);
 139       n = BLOCKVECTOR_NBLOCKS (bv);
 140       for (i = 0; i < n; i++)
 141         free_symtab_block (s->objfile, BLOCKVECTOR_BLOCK (bv, i));
 142       /* Free the blockvector itself.  */
 143       xfree (bv);
 144       /* Also free the linetable.  */
 145
 146     case free_linetable:
 147       /* Everything will be freed either by our `free_func'
 148          or by some other symtab, except for our linetable.
 149          Free that now.  */
 150       if (LINETABLE (s))
 151         xfree (LINETABLE (s));
 152       break;
 153     }
 154
 155   /* If there is a single block of memory to free, free it.  */
 156   if (s->free_func != NULL)
 157     s->free_func (s);
 158
 159   /* Free source-related stuff */
 160   if (s->line_charpos != NULL)
 161     xfree (s->line_charpos);
 162   if (s->fullname != NULL)
 163     xfree (s->fullname);
 164   if (s->debugformat != NULL)
 165     xfree (s->debugformat);
 166   xfree (s);
 167 }
 168
 169 void
 170 print_symbol_bcache_statistics (void)
 171 {
 172   struct objfile *objfile;
 173
 174   immediate_quit++;
 175   ALL_OBJFILES (objfile)
 176   {
 177     printf_filtered ("Byte cache statistics for '%s':\n", objfile->name);
 178     print_bcache_statistics (objfile->psymbol_cache, "partial symbol cache");
 179   }
 180   immediate_quit--;
 181 }
 182
 183 void
 184 print_objfile_statistics (void)
 185 {
 186   struct objfile *objfile;
 187   struct symtab *s;
 188   struct partial_symtab *ps;
 189   int i, linetables, blockvectors;
 190
 191   immediate_quit++;
 192   ALL_OBJFILES (objfile)
 193   {
 194     printf_filtered ("Statistics for '%s':\n", objfile->name);
 195     if (OBJSTAT (objfile, n_stabs) > 0)
 196       printf_filtered ("  Number of \"stab\" symbols read: %d\n",
 197                        OBJSTAT (objfile, n_stabs));
 198     if (OBJSTAT (objfile, n_minsyms) > 0)
 199       printf_filtered ("  Number of \"minimal\" symbols read: %d\n",
 200                        OBJSTAT (objfile, n_minsyms));
 201     if (OBJSTAT (objfile, n_psyms) > 0)
 202       printf_filtered ("  Number of \"partial\" symbols read: %d\n",
 203                        OBJSTAT (objfile, n_psyms));
 204     if (OBJSTAT (objfile, n_syms) > 0)
 205       printf_filtered ("  Number of \"full\" symbols read: %d\n",
 206                        OBJSTAT (objfile, n_syms));
 207     if (OBJSTAT (objfile, n_types) > 0)
 208       printf_filtered ("  Number of \"types\" defined: %d\n",
 209                        OBJSTAT (objfile, n_types));
 210     i = 0;
 211     ALL_OBJFILE_PSYMTABS (objfile, ps)
 212       {
 213         if (ps->readin == 0)
 214           i++;
 215       }
 216     printf_filtered ("  Number of psym tables (not yet expanded): %d\n", i);
 217     i = linetables = blockvectors = 0;
 218     ALL_OBJFILE_SYMTABS (objfile, s)
 219       {
 220         i++;
 221         if (s->linetable != NULL)
 222           linetables++;
 223         if (s->primary == 1)
 224           blockvectors++;
 225       }
 226     printf_filtered ("  Number of symbol tables: %d\n", i);
 227     printf_filtered ("  Number of symbol tables with line tables: %d\n",
 228                      linetables);
 229     printf_filtered ("  Number of symbol tables with blockvectors: %d\n",
 230                      blockvectors);
 231
 232     if (OBJSTAT (objfile, sz_strtab) > 0)
 233       printf_filtered ("  Space used by a.out string tables: %d\n",
 234                        OBJSTAT (objfile, sz_strtab));
 235     printf_filtered ("  Total memory used for objfile obstack: %d\n",
 236                      obstack_memory_used (&objfile->objfile_obstack));
 237     printf_filtered ("  Total memory used for psymbol cache: %d\n",
 238                      bcache_memory_used (objfile->psymbol_cache));
 239     printf_filtered ("  Total memory used for macro cache: %d\n",
 240                      bcache_memory_used (objfile->macro_cache));
 241   }
 242   immediate_quit--;
 243 }
 244
 245 static void
 246 dump_objfile (struct objfile *objfile)
 247 {
 248   struct symtab *symtab;
 249   struct partial_symtab *psymtab;
 250
 251   printf_filtered ("\nObject file %s:  ", objfile->name);
 252   printf_filtered ("Objfile at ");
 253   gdb_print_host_address (objfile, gdb_stdout);
 254   printf_filtered (", bfd at ");
 255   gdb_print_host_address (objfile->obfd, gdb_stdout);
 256   printf_filtered (", %d minsyms\n\n",
 257                    objfile->minimal_symbol_count);
 258
 259   if (objfile->psymtabs)
 260     {
 261       printf_filtered ("Psymtabs:\n");
 262       for (psymtab = objfile->psymtabs;
 263            psymtab != NULL;
 264            psymtab = psymtab->next)
 265         {
 266           printf_filtered ("%s at ",
 267                            psymtab->filename);
 268           gdb_print_host_address (psymtab, gdb_stdout);
 269           printf_filtered (", ");
 270           if (psymtab->objfile != objfile)
 271             {
 272               printf_filtered ("NOT ON CHAIN!  ");
 273             }
 274           wrap_here ("  ");
 275         }
 276       printf_filtered ("\n\n");
 277     }
 278
 279   if (objfile->symtabs)
 280     {
 281       printf_filtered ("Symtabs:\n");
 282       for (symtab = objfile->symtabs;
 283            symtab != NULL;
 284            symtab = symtab->next)
 285         {
 286           printf_filtered ("%s at ", symtab->filename);
 287           gdb_print_host_address (symtab, gdb_stdout);
 288           printf_filtered (", ");
 289           if (symtab->objfile != objfile)
 290             {
 291               printf_filtered ("NOT ON CHAIN!  ");
 292             }
 293           wrap_here ("  ");
 294         }
 295       printf_filtered ("\n\n");
 296     }
 297 }
 298
 299 /* Print minimal symbols from this objfile.  */
 300
 301 static void
 302 dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
 303 {
 304   struct minimal_symbol *msymbol;
 305   int index;
 306   char ms_type;
 307
 308   fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
 309   if (objfile->minimal_symbol_count == 0)
 310     {
 311       fprintf_filtered (outfile, "No minimal symbols found.\n");
 312       return;
 313     }
 314   for (index = 0, msymbol = objfile->msymbols;
 315        DEPRECATED_SYMBOL_NAME (msymbol) != NULL; msymbol++, index++)
 316     {
 317       switch (msymbol->type)
 318         {
 319         case mst_unknown:
 320           ms_type = 'u';
 321           break;
 322         case mst_text:
 323           ms_type = 'T';
 324           break;
 325         case mst_solib_trampoline:
 326           ms_type = 'S';
 327           break;
 328         case mst_data:
 329           ms_type = 'D';
 330           break;
 331         case mst_bss:
 332           ms_type = 'B';
 333           break;
 334         case mst_abs:
 335           ms_type = 'A';
 336           break;
 337         case mst_file_text:
 338           ms_type = 't';
 339           break;
 340         case mst_file_data:
 341           ms_type = 'd';
 342           break;
 343         case mst_file_bss:
 344           ms_type = 'b';
 345           break;
 346         default:
 347           ms_type = '?';
 348           break;
 349         }
 350       fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
 351       print_address_numeric (SYMBOL_VALUE_ADDRESS (msymbol), 1, outfile);
 352       fprintf_filtered (outfile, " %s", DEPRECATED_SYMBOL_NAME (msymbol));
 353       if (SYMBOL_BFD_SECTION (msymbol))
 354         fprintf_filtered (outfile, " section %s",
 355                           bfd_section_name (objfile->obfd,
 356                                             SYMBOL_BFD_SECTION (msymbol)));
 357       if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
 358         {
 359           fprintf_filtered (outfile, "  %s", SYMBOL_DEMANGLED_NAME (msymbol));
 360         }
 361 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
 362       if (msymbol->filename)
 363         fprintf_filtered (outfile, "  %s", msymbol->filename);
 364 #endif
 365       fputs_filtered ("\n", outfile);
 366     }
 367   if (objfile->minimal_symbol_count != index)
 368     {
 369       warning (_("internal error:  minimal symbol count %d != %d"),
 370                objfile->minimal_symbol_count, index);
 371     }
 372   fprintf_filtered (outfile, "\n");
 373 }
 374
 375 static void
 376 dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab,
 377               struct ui_file *outfile)
 378 {
 379   int i;
 380
 381   fprintf_filtered (outfile, "\nPartial symtab for source file %s ",
 382                     psymtab->filename);
 383   fprintf_filtered (outfile, "(object ");
 384   gdb_print_host_address (psymtab, outfile);
 385   fprintf_filtered (outfile, ")\n\n");
 386   fprintf_unfiltered (outfile, "  Read from object file %s (",
 387                       objfile->name);
 388   gdb_print_host_address (objfile, outfile);
 389   fprintf_unfiltered (outfile, ")\n");
 390
 391   if (psymtab->readin)
 392     {
 393       fprintf_filtered (outfile,
 394                         "  Full symtab was read (at ");
 395       gdb_print_host_address (psymtab->symtab, outfile);
 396       fprintf_filtered (outfile, " by function at ");
 397       gdb_print_host_address (psymtab->read_symtab, outfile);
 398       fprintf_filtered (outfile, ")\n");
 399     }
 400
 401   fprintf_filtered (outfile, "  Relocate symbols by ");
 402   for (i = 0; i < psymtab->objfile->num_sections; ++i)
 403     {
 404       if (i != 0)
 405         fprintf_filtered (outfile, ", ");
 406       wrap_here ("    ");
 407       print_address_numeric (ANOFFSET (psymtab->section_offsets, i),
 408                              1,
 409                              outfile);
 410     }
 411   fprintf_filtered (outfile, "\n");
 412
 413   fprintf_filtered (outfile, "  Symbols cover text addresses ");
 414   print_address_numeric (psymtab->textlow, 1, outfile);
 415   fprintf_filtered (outfile, "-");
 416   print_address_numeric (psymtab->texthigh, 1, outfile);
 417   fprintf_filtered (outfile, "\n");
 418   fprintf_filtered (outfile, "  Depends on %d other partial symtabs.\n",
 419                     psymtab->number_of_dependencies);
 420   for (i = 0; i < psymtab->number_of_dependencies; i++)
 421     {
 422       fprintf_filtered (outfile, "    %d ", i);
 423       gdb_print_host_address (psymtab->dependencies[i], outfile);
 424       fprintf_filtered (outfile, " %s\n",
 425                         psymtab->dependencies[i]->filename);
 426     }
 427   if (psymtab->n_global_syms > 0)
 428     {
 429       print_partial_symbols (objfile->global_psymbols.list
 430                              + psymtab->globals_offset,
 431                              psymtab->n_global_syms, "Global", outfile);
 432     }
 433   if (psymtab->n_static_syms > 0)
 434     {
 435       print_partial_symbols (objfile->static_psymbols.list
 436                              + psymtab->statics_offset,
 437                              psymtab->n_static_syms, "Static", outfile);
 438     }
 439   fprintf_filtered (outfile, "\n");
 440 }
 441
 442 static void
 443 dump_symtab (struct objfile *objfile, struct symtab *symtab,
 444              struct ui_file *outfile)
 445 {
 446   int i;
 447   struct dict_iterator iter;
 448   int len, blen;
 449   struct linetable *l;
 450   struct blockvector *bv;
 451   struct symbol *sym;
 452   struct block *b;
 453   int depth;
 454
 455   fprintf_filtered (outfile, "\nSymtab for file %s\n", symtab->filename);
 456   if (symtab->dirname)
 457     fprintf_filtered (outfile, "Compilation directory is %s\n",
 458                       symtab->dirname);
 459   fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
 460   gdb_print_host_address (objfile, outfile);
 461   fprintf_filtered (outfile, ")\n");
 462   fprintf_filtered (outfile, "Language: %s\n", language_str (symtab->language));
 463
 464   /* First print the line table.  */
 465   l = LINETABLE (symtab);
 466   if (l)
 467     {
 468       fprintf_filtered (outfile, "\nLine table:\n\n");
 469       len = l->nitems;
 470       for (i = 0; i < len; i++)
 471         {
 472           fprintf_filtered (outfile, " line %d at ", l->item[i].line);
 473           print_address_numeric (l->item[i].pc, 1, outfile);
 474           fprintf_filtered (outfile, "\n");
 475         }
 476     }
 477   /* Now print the block info, but only for primary symtabs since we will
 478      print lots of duplicate info otherwise. */
 479   if (symtab->primary)
 480     {
 481       fprintf_filtered (outfile, "\nBlockvector:\n\n");
 482       bv = BLOCKVECTOR (symtab);
 483       len = BLOCKVECTOR_NBLOCKS (bv);
 484       for (i = 0; i < len; i++)
 485         {
 486           b = BLOCKVECTOR_BLOCK (bv, i);
 487           depth = block_depth (b) * 2;
 488           print_spaces (depth, outfile);
 489           fprintf_filtered (outfile, "block #%03d, object at ", i);
 490           gdb_print_host_address (b, outfile);
 491           if (BLOCK_SUPERBLOCK (b))
 492             {
 493               fprintf_filtered (outfile, " under ");
 494               gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
 495             }
 496           /* drow/2002-07-10: We could save the total symbols count
 497              even if we're using a hashtable, but nothing else but this message
 498              wants it.  */
 499           fprintf_filtered (outfile, ", %d syms/buckets in ",
 500                             dict_size (BLOCK_DICT (b)));
 501           print_address_numeric (BLOCK_START (b), 1, outfile);
 502           fprintf_filtered (outfile, "..");
 503           print_address_numeric (BLOCK_END (b), 1, outfile);
 504           if (BLOCK_FUNCTION (b))
 505             {
 506               fprintf_filtered (outfile, ", function %s", DEPRECATED_SYMBOL_NAME (BLOCK_FUNCTION (b)));
 507               if (SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)) != NULL)
 508                 {
 509                   fprintf_filtered (outfile, ", %s",
 510                                 SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)));
 511                 }
 512             }
 513           if (BLOCK_GCC_COMPILED (b))
 514             fprintf_filtered (outfile, ", compiled with gcc%d", BLOCK_GCC_COMPILED (b));
 515           fprintf_filtered (outfile, "\n");
 516           /* Now print each symbol in this block (in no particular order, if
 517              we're using a hashtable).  */
 518           ALL_BLOCK_SYMBOLS (b, iter, sym)
 519             {
 520               struct print_symbol_args s;
 521               s.symbol = sym;
 522               s.depth = depth + 1;
 523               s.outfile = outfile;
 524               catch_errors (print_symbol, &s, "Error printing symbol:\n",
 525                             RETURN_MASK_ALL);
 526             }
 527         }
 528       fprintf_filtered (outfile, "\n");
 529     }
 530   else
 531     {
 532       fprintf_filtered (outfile, "\nBlockvector same as previous symtab\n\n");
 533     }
 534 }
 535
 536 void
 537 maintenance_print_symbols (char *args, int from_tty)
 538 {
 539   char **argv;
 540   struct ui_file *outfile;
 541   struct cleanup *cleanups;
 542   char *symname = NULL;
 543   char *filename = DEV_TTY;
 544   struct objfile *objfile;
 545   struct symtab *s;
 546
 547   dont_repeat ();
 548
 549   if (args == NULL)
 550     {
 551       error (_("\
 552 Arguments missing: an output file name and an optional symbol file name"));
 553     }
 554   else if ((argv = buildargv (args)) == NULL)
 555     {
 556       nomem (0);
 557     }
 558   cleanups = make_cleanup_freeargv (argv);
 559
 560   if (argv[0] != NULL)
 561     {
 562       filename = argv[0];
 563       /* If a second arg is supplied, it is a source file name to match on */
 564       if (argv[1] != NULL)
 565         {
 566           symname = argv[1];
 567         }
 568     }
 569
 570   filename = tilde_expand (filename);
 571   make_cleanup (xfree, filename);
 572
 573   outfile = gdb_fopen (filename, FOPEN_WT);
 574   if (outfile == 0)
 575     perror_with_name (filename);
 576   make_cleanup_ui_file_delete (outfile);
 577
 578   immediate_quit++;
 579   ALL_SYMTABS (objfile, s)
 580     if (symname == NULL || strcmp (symname, s->filename) == 0)
 581     dump_symtab (objfile, s, outfile);
 582   immediate_quit--;
 583   do_cleanups (cleanups);
 584 }
 585
 586 /* Print symbol ARGS->SYMBOL on ARGS->OUTFILE.  ARGS->DEPTH says how
 587    far to indent.  ARGS is really a struct print_symbol_args *, but is
 588    declared as char * to get it past catch_errors.  Returns 0 for error,
 589    1 for success.  */
 590
 591 static int
 592 print_symbol (void *args)
 593 {
 594   struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
 595   int depth = ((struct print_symbol_args *) args)->depth;
 596   struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
 597
 598   print_spaces (depth, outfile);
 599   if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
 600     {
 601       fprintf_filtered (outfile, "label %s at ", SYMBOL_PRINT_NAME (symbol));
 602       print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 603       if (SYMBOL_BFD_SECTION (symbol))
 604         fprintf_filtered (outfile, " section %s\n",
 605                        bfd_section_name (SYMBOL_BFD_SECTION (symbol)->owner,
 606                                          SYMBOL_BFD_SECTION (symbol)));
 607       else
 608         fprintf_filtered (outfile, "\n");
 609       return 1;
 610     }
 611   if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
 612     {
 613       if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
 614         {
 615           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 616         }
 617       else
 618         {
 619           fprintf_filtered (outfile, "%s %s = ",
 620                          (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
 621                           ? "enum"
 622                      : (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
 623                         ? "struct" : "union")),
 624                             DEPRECATED_SYMBOL_NAME (symbol));
 625           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 626         }
 627       fprintf_filtered (outfile, ";\n");
 628     }
 629   else
 630     {
 631       if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 632         fprintf_filtered (outfile, "typedef ");
 633       if (SYMBOL_TYPE (symbol))
 634         {
 635           /* Print details of types, except for enums where it's clutter.  */
 636           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_PRINT_NAME (symbol),
 637                          outfile,
 638                          TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
 639                          depth);
 640           fprintf_filtered (outfile, "; ");
 641         }
 642       else
 643         fprintf_filtered (outfile, "%s ", SYMBOL_PRINT_NAME (symbol));
 644
 645       switch (SYMBOL_CLASS (symbol))
 646         {
 647         case LOC_CONST:
 648           fprintf_filtered (outfile, "const %ld (0x%lx)",
 649                             SYMBOL_VALUE (symbol),
 650                             SYMBOL_VALUE (symbol));
 651           break;
 652
 653         case LOC_CONST_BYTES:
 654           {
 655             unsigned i;
 656             struct type *type = check_typedef (SYMBOL_TYPE (symbol));
 657             fprintf_filtered (outfile, "const %u hex bytes:",
 658                               TYPE_LENGTH (type));
 659             for (i = 0; i < TYPE_LENGTH (type); i++)
 660               fprintf_filtered (outfile, " %02x",
 661                                 (unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
 662           }
 663           break;
 664
 665         case LOC_STATIC:
 666           fprintf_filtered (outfile, "static at ");
 667           print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 668           if (SYMBOL_BFD_SECTION (symbol))
 669             fprintf_filtered (outfile, " section %s",
 670                               bfd_section_name
 671                               (SYMBOL_BFD_SECTION (symbol)->owner,
 672                                SYMBOL_BFD_SECTION (symbol)));
 673           break;
 674
 675         case LOC_INDIRECT:
 676           fprintf_filtered (outfile, "extern global at *(");
 677           print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 678           fprintf_filtered (outfile, "),");
 679           break;
 680
 681         case LOC_REGISTER:
 682           fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
 683           break;
 684
 685         case LOC_ARG:
 686           fprintf_filtered (outfile, "arg at offset 0x%lx",
 687                             SYMBOL_VALUE (symbol));
 688           break;
 689
 690         case LOC_LOCAL_ARG:
 691           fprintf_filtered (outfile, "arg at offset 0x%lx from fp",
 692                             SYMBOL_VALUE (symbol));
 693           break;
 694
 695         case LOC_REF_ARG:
 696           fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
 697           break;
 698
 699         case LOC_REGPARM:
 700           fprintf_filtered (outfile, "parameter register %ld", SYMBOL_VALUE (symbol));
 701           break;
 702
 703         case LOC_REGPARM_ADDR:
 704           fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
 705           break;
 706
 707         case LOC_LOCAL:
 708           fprintf_filtered (outfile, "local at offset 0x%lx",
 709                             SYMBOL_VALUE (symbol));
 710           break;
 711
 712         case LOC_BASEREG:
 713           fprintf_filtered (outfile, "local at 0x%lx from register %d",
 714                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 715           break;
 716
 717         case LOC_BASEREG_ARG:
 718           fprintf_filtered (outfile, "arg at 0x%lx from register %d",
 719                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 720           break;
 721
 722         case LOC_TYPEDEF:
 723           break;
 724
 725         case LOC_LABEL:
 726           fprintf_filtered (outfile, "label at ");
 727           print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 728           if (SYMBOL_BFD_SECTION (symbol))
 729             fprintf_filtered (outfile, " section %s",
 730                               bfd_section_name
 731                               (SYMBOL_BFD_SECTION (symbol)->owner,
 732                                SYMBOL_BFD_SECTION (symbol)));
 733           break;
 734
 735         case LOC_BLOCK:
 736           fprintf_filtered (outfile, "block object ");
 737           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 738           fprintf_filtered (outfile, ", ");
 739           print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)),
 740                                  1,
 741                                  outfile);
 742           fprintf_filtered (outfile, "..");
 743           print_address_numeric (BLOCK_END (SYMBOL_BLOCK_VALUE (symbol)),
 744                                  1,
 745                                  outfile);
 746           if (SYMBOL_BFD_SECTION (symbol))
 747             fprintf_filtered (outfile, " section %s",
 748                               bfd_section_name
 749                               (SYMBOL_BFD_SECTION (symbol)->owner,
 750                                SYMBOL_BFD_SECTION (symbol)));
 751           break;
 752
 753         case LOC_COMPUTED:
 754         case LOC_COMPUTED_ARG:
 755           fprintf_filtered (outfile, "computed at runtime");
 756           break;
 757
 758         case LOC_UNRESOLVED:
 759           fprintf_filtered (outfile, "unresolved");
 760           break;
 761
 762         case LOC_OPTIMIZED_OUT:
 763           fprintf_filtered (outfile, "optimized out");
 764           break;
 765
 766         default:
 767           fprintf_filtered (outfile, "botched symbol class %x",
 768                             SYMBOL_CLASS (symbol));
 769           break;
 770         }
 771     }
 772   fprintf_filtered (outfile, "\n");
 773   return 1;
 774 }
 775
 776 void
 777 maintenance_print_psymbols (char *args, int from_tty)
 778 {
 779   char **argv;
 780   struct ui_file *outfile;
 781   struct cleanup *cleanups;
 782   char *symname = NULL;
 783   char *filename = DEV_TTY;
 784   struct objfile *objfile;
 785   struct partial_symtab *ps;
 786
 787   dont_repeat ();
 788
 789   if (args == NULL)
 790     {
 791       error (_("print-psymbols takes an output file name and optional symbol file name"));
 792     }
 793   else if ((argv = buildargv (args)) == NULL)
 794     {
 795       nomem (0);
 796     }
 797   cleanups = make_cleanup_freeargv (argv);
 798
 799   if (argv[0] != NULL)
 800     {
 801       filename = argv[0];
 802       /* If a second arg is supplied, it is a source file name to match on */
 803       if (argv[1] != NULL)
 804         {
 805           symname = argv[1];
 806         }
 807     }
 808
 809   filename = tilde_expand (filename);
 810   make_cleanup (xfree, filename);
 811
 812   outfile = gdb_fopen (filename, FOPEN_WT);
 813   if (outfile == 0)
 814     perror_with_name (filename);
 815   make_cleanup_ui_file_delete (outfile);
 816
 817   immediate_quit++;
 818   ALL_PSYMTABS (objfile, ps)
 819     if (symname == NULL || strcmp (symname, ps->filename) == 0)
 820     dump_psymtab (objfile, ps, outfile);
 821   immediate_quit--;
 822   do_cleanups (cleanups);
 823 }
 824
 825 static void
 826 print_partial_symbols (struct partial_symbol **p, int count, char *what,
 827                        struct ui_file *outfile)
 828 {
 829   fprintf_filtered (outfile, "  %s partial symbols:\n", what);
 830   while (count-- > 0)
 831     {
 832       fprintf_filtered (outfile, "    `%s'", DEPRECATED_SYMBOL_NAME (*p));
 833       if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
 834         {
 835           fprintf_filtered (outfile, "  `%s'", SYMBOL_DEMANGLED_NAME (*p));
 836         }
 837       fputs_filtered (", ", outfile);
 838       switch (SYMBOL_DOMAIN (*p))
 839         {
 840         case UNDEF_DOMAIN:
 841           fputs_filtered ("undefined domain, ", outfile);
 842           break;
 843         case VAR_DOMAIN:
 844           /* This is the usual thing -- don't print it */
 845           break;
 846         case STRUCT_DOMAIN:
 847           fputs_filtered ("struct domain, ", outfile);
 848           break;
 849         case LABEL_DOMAIN:
 850           fputs_filtered ("label domain, ", outfile);
 851           break;
 852         default:
 853           fputs_filtered ("<invalid domain>, ", outfile);
 854           break;
 855         }
 856       switch (SYMBOL_CLASS (*p))
 857         {
 858         case LOC_UNDEF:
 859           fputs_filtered ("undefined", outfile);
 860           break;
 861         case LOC_CONST:
 862           fputs_filtered ("constant int", outfile);
 863           break;
 864         case LOC_STATIC:
 865           fputs_filtered ("static", outfile);
 866           break;
 867         case LOC_INDIRECT:
 868           fputs_filtered ("extern global", outfile);
 869           break;
 870         case LOC_REGISTER:
 871           fputs_filtered ("register", outfile);
 872           break;
 873         case LOC_ARG:
 874           fputs_filtered ("pass by value", outfile);
 875           break;
 876         case LOC_REF_ARG:
 877           fputs_filtered ("pass by reference", outfile);
 878           break;
 879         case LOC_REGPARM:
 880           fputs_filtered ("register parameter", outfile);
 881           break;
 882         case LOC_REGPARM_ADDR:
 883           fputs_filtered ("register address parameter", outfile);
 884           break;
 885         case LOC_LOCAL:
 886           fputs_filtered ("stack parameter", outfile);
 887           break;
 888         case LOC_TYPEDEF:
 889           fputs_filtered ("type", outfile);
 890           break;
 891         case LOC_LABEL:
 892           fputs_filtered ("label", outfile);
 893           break;
 894         case LOC_BLOCK:
 895           fputs_filtered ("function", outfile);
 896           break;
 897         case LOC_CONST_BYTES:
 898           fputs_filtered ("constant bytes", outfile);
 899           break;
 900         case LOC_LOCAL_ARG:
 901           fputs_filtered ("shuffled arg", outfile);
 902           break;
 903         case LOC_UNRESOLVED:
 904           fputs_filtered ("unresolved", outfile);
 905           break;
 906         case LOC_OPTIMIZED_OUT:
 907           fputs_filtered ("optimized out", outfile);
 908           break;
 909         case LOC_COMPUTED:
 910         case LOC_COMPUTED_ARG:
 911           fputs_filtered ("computed at runtime", outfile);
 912           break;
 913         default:
 914           fputs_filtered ("<invalid location>", outfile);
 915           break;
 916         }
 917       fputs_filtered (", ", outfile);
 918       print_address_numeric (SYMBOL_VALUE_ADDRESS (*p), 1, outfile);
 919       fprintf_filtered (outfile, "\n");
 920       p++;
 921     }
 922 }
 923
 924 void
 925 maintenance_print_msymbols (char *args, int from_tty)
 926 {
 927   char **argv;
 928   struct ui_file *outfile;
 929   struct cleanup *cleanups;
 930   char *filename = DEV_TTY;
 931   char *symname = NULL;
 932   struct objfile *objfile;
 933
 934   struct stat sym_st, obj_st;
 935
 936   dont_repeat ();
 937
 938   if (args == NULL)
 939     {
 940       error (_("print-msymbols takes an output file name and optional symbol file name"));
 941     }
 942   else if ((argv = buildargv (args)) == NULL)
 943     {
 944       nomem (0);
 945     }
 946   cleanups = make_cleanup_freeargv (argv);
 947
 948   if (argv[0] != NULL)
 949     {
 950       filename = argv[0];
 951       /* If a second arg is supplied, it is a source file name to match on */
 952       if (argv[1] != NULL)
 953         {
 954           symname = xfullpath (argv[1]);
 955           make_cleanup (xfree, symname);
 956           if (symname && stat (symname, &sym_st))
 957             perror_with_name (symname);
 958         }
 959     }
 960
 961   filename = tilde_expand (filename);
 962   make_cleanup (xfree, filename);
 963
 964   outfile = gdb_fopen (filename, FOPEN_WT);
 965   if (outfile == 0)
 966     perror_with_name (filename);
 967   make_cleanup_ui_file_delete (outfile);
 968
 969   immediate_quit++;
 970   ALL_OBJFILES (objfile)
 971     if (symname == NULL
 972         || (!stat (objfile->name, &obj_st) && sym_st.st_ino == obj_st.st_ino))
 973       dump_msymbols (objfile, outfile);
 974   immediate_quit--;
 975   fprintf_filtered (outfile, "\n\n");
 976   do_cleanups (cleanups);
 977 }
 978
 979 void
 980 maintenance_print_objfiles (char *ignore, int from_tty)
 981 {
 982   struct objfile *objfile;
 983
 984   dont_repeat ();
 985
 986   immediate_quit++;
 987   ALL_OBJFILES (objfile)
 988     dump_objfile (objfile);
 989   immediate_quit--;
 990 }
 991
 992
 993 /* List all the symbol tables whose names match REGEXP (optional).  */
 994 void
 995 maintenance_info_symtabs (char *regexp, int from_tty)
 996 {
 997   struct objfile *objfile;
 998
 999   if (regexp)
1000     re_comp (regexp);
1001
1002   ALL_OBJFILES (objfile)
1003     {
1004       struct symtab *symtab;
1005
1006       /* We don't want to print anything for this objfile until we
1007          actually find a symtab whose name matches.  */
1008       int printed_objfile_start = 0;
1009
1010       ALL_OBJFILE_SYMTABS (objfile, symtab)
1011         if (! regexp
1012             || re_exec (symtab->filename))
1013           {
1014             if (! printed_objfile_start)
1015               {
1016                 printf_filtered ("{ objfile %s ", objfile->name);
1017                 wrap_here ("  ");
1018                 printf_filtered ("((struct objfile *) %p)\n", objfile);
1019                 printed_objfile_start = 1;
1020               }
1021
1022             printf_filtered ("  { symtab %s ", symtab->filename);
1023             wrap_here ("    ");
1024             printf_filtered ("((struct symtab *) %p)\n", symtab);
1025             printf_filtered ("    dirname %s\n",
1026                              symtab->dirname ? symtab->dirname : "(null)");
1027             printf_filtered ("    fullname %s\n",
1028                              symtab->fullname ? symtab->fullname : "(null)");
1029             printf_filtered ("    blockvector ((struct blockvector *) %p)%s\n",
1030                              symtab->blockvector,
1031                              symtab->primary ? " (primary)" : "");
1032             printf_filtered ("    debugformat %s\n", symtab->debugformat);
1033             printf_filtered ("  }\n");
1034           }
1035
1036       if (printed_objfile_start)
1037         printf_filtered ("}\n");
1038     }
1039 }
1040
1041
1042 /* List all the partial symbol tables whose names match REGEXP (optional).  */
1043 void
1044 maintenance_info_psymtabs (char *regexp, int from_tty)
1045 {
1046   struct objfile *objfile;
1047
1048   if (regexp)
1049     re_comp (regexp);
1050
1051   ALL_OBJFILES (objfile)
1052     {
1053       struct partial_symtab *psymtab;
1054
1055       /* We don't want to print anything for this objfile until we
1056          actually find a symtab whose name matches.  */
1057       int printed_objfile_start = 0;
1058
1059       ALL_OBJFILE_PSYMTABS (objfile, psymtab)
1060         if (! regexp
1061             || re_exec (psymtab->filename))
1062           {
1063             if (! printed_objfile_start)
1064               {
1065                 printf_filtered ("{ objfile %s ", objfile->name);
1066                 wrap_here ("  ");
1067                 printf_filtered ("((struct objfile *) %p)\n", objfile);
1068                 printed_objfile_start = 1;
1069               }
1070
1071             printf_filtered ("  { psymtab %s ", psymtab->filename);
1072             wrap_here ("    ");
1073             printf_filtered ("((struct partial_symtab *) %p)\n", psymtab);
1074             printf_filtered ("    readin %s\n",
1075                              psymtab->readin ? "yes" : "no");
1076             printf_filtered ("    fullname %s\n",
1077                              psymtab->fullname ? psymtab->fullname : "(null)");
1078             printf_filtered ("    text addresses ");
1079             print_address_numeric (psymtab->textlow, 1, gdb_stdout);
1080             printf_filtered (" -- ");
1081             print_address_numeric (psymtab->texthigh, 1, gdb_stdout);
1082             printf_filtered ("\n");
1083             printf_filtered ("    globals ");
1084             if (psymtab->n_global_syms)
1085               {
1086                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1087                                  (psymtab->objfile->global_psymbols.list
1088                                   + psymtab->globals_offset),
1089                                  psymtab->n_global_syms);
1090               }
1091             else
1092               printf_filtered ("(none)\n");
1093             printf_filtered ("    statics ");
1094             if (psymtab->n_static_syms)
1095               {
1096                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1097                                  (psymtab->objfile->static_psymbols.list
1098                                   + psymtab->statics_offset),
1099                                  psymtab->n_static_syms);
1100               }
1101             else
1102               printf_filtered ("(none)\n");
1103             printf_filtered ("    dependencies ");
1104             if (psymtab->number_of_dependencies)
1105               {
1106                 int i;
1107
1108                 printf_filtered ("{\n");
1109                 for (i = 0; i < psymtab->number_of_dependencies; i++)
1110                   {
1111                     struct partial_symtab *dep = psymtab->dependencies[i];
1112
1113                     /* Note the string concatenation there --- no comma.  */
1114                     printf_filtered ("      psymtab %s "
1115                                      "((struct partial_symtab *) %p)\n",
1116                                      dep->filename, dep);
1117                   }
1118                 printf_filtered ("    }\n");
1119               }
1120             else
1121               printf_filtered ("(none)\n");
1122             printf_filtered ("  }\n");
1123           }
1124
1125       if (printed_objfile_start)
1126         printf_filtered ("}\n");
1127     }
1128 }
1129
1130
1131 /* Check consistency of psymtabs and symtabs.  */
1132
1133 void
1134 maintenance_check_symtabs (char *ignore, int from_tty)
1135 {
1136   struct symbol *sym;
1137   struct partial_symbol **psym;
1138   struct symtab *s = NULL;
1139   struct partial_symtab *ps;
1140   struct blockvector *bv;
1141   struct objfile *objfile;
1142   struct block *b;
1143   int length;
1144
1145   ALL_PSYMTABS (objfile, ps)
1146   {
1147     s = PSYMTAB_TO_SYMTAB (ps);
1148     if (s == NULL)
1149       continue;
1150     bv = BLOCKVECTOR (s);
1151     b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1152     psym = ps->objfile->static_psymbols.list + ps->statics_offset;
1153     length = ps->n_static_syms;
1154     while (length--)
1155       {
1156         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1157                                    NULL, SYMBOL_DOMAIN (*psym));
1158         if (!sym)
1159           {
1160             printf_filtered ("Static symbol `");
1161             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1162             printf_filtered ("' only found in ");
1163             puts_filtered (ps->filename);
1164             printf_filtered (" psymtab\n");
1165           }
1166         psym++;
1167       }
1168     b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1169     psym = ps->objfile->global_psymbols.list + ps->globals_offset;
1170     length = ps->n_global_syms;
1171     while (length--)
1172       {
1173         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1174                                    NULL, SYMBOL_DOMAIN (*psym));
1175         if (!sym)
1176           {
1177             printf_filtered ("Global symbol `");
1178             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1179             printf_filtered ("' only found in ");
1180             puts_filtered (ps->filename);
1181             printf_filtered (" psymtab\n");
1182           }
1183         psym++;
1184       }
1185     if (ps->texthigh < ps->textlow)
1186       {
1187         printf_filtered ("Psymtab ");
1188         puts_filtered (ps->filename);
1189         printf_filtered (" covers bad range ");
1190         print_address_numeric (ps->textlow, 1, gdb_stdout);
1191         printf_filtered (" - ");
1192         print_address_numeric (ps->texthigh, 1, gdb_stdout);
1193         printf_filtered ("\n");
1194         continue;
1195       }
1196     if (ps->texthigh == 0)
1197       continue;
1198     if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
1199       {
1200         printf_filtered ("Psymtab ");
1201         puts_filtered (ps->filename);
1202         printf_filtered (" covers ");
1203         print_address_numeric (ps->textlow, 1, gdb_stdout);
1204         printf_filtered (" - ");
1205         print_address_numeric (ps->texthigh, 1, gdb_stdout);
1206         printf_filtered (" but symtab covers only ");
1207         print_address_numeric (BLOCK_START (b), 1, gdb_stdout);
1208         printf_filtered (" - ");
1209         print_address_numeric (BLOCK_END (b), 1, gdb_stdout);
1210         printf_filtered ("\n");
1211       }
1212   }
1213 }
1214 \f
1215
1216 /* Return the nexting depth of a block within other blocks in its symtab.  */
1217
1218 static int
1219 block_depth (struct block *block)
1220 {
1221   int i = 0;
1222   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
1223     {
1224       i++;
1225     }
1226   return i;
1227 }
1228 \f
1229
1230 /* Increase the space allocated for LISTP, which is probably
1231    global_psymbols or static_psymbols. This space will eventually
1232    be freed in free_objfile().  */
1233
1234 void
1235 extend_psymbol_list (struct psymbol_allocation_list *listp,
1236                      struct objfile *objfile)
1237 {
1238   int new_size;
1239   if (listp->size == 0)
1240     {
1241       new_size = 255;
1242       listp->list = (struct partial_symbol **)
1243         xmalloc (new_size * sizeof (struct partial_symbol *));
1244     }
1245   else
1246     {
1247       new_size = listp->size * 2;
1248       listp->list = (struct partial_symbol **)
1249         xrealloc ((char *) listp->list,
1250                   new_size * sizeof (struct partial_symbol *));
1251     }
1252   /* Next assumes we only went one over.  Should be good if
1253      program works correctly */
1254   listp->next = listp->list + listp->size;
1255   listp->size = new_size;
1256 }
1257
1258
1259 /* Do early runtime initializations. */
1260 void
1261 _initialize_symmisc (void)
1262 {
1263   std_in = stdin;
1264   std_out = stdout;
1265   std_err = stderr;
1266 }