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
   5    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 "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 #ifndef DEV_TTY
  43 #define DEV_TTY "/dev/tty"
  44 #endif
  45
  46 /* Unfortunately for debugging, stderr is usually a macro.  This is painful
  47    when calling functions that take FILE *'s from the debugger.
  48    So we make a variable which has the same value and which is accessible when
  49    debugging GDB with itself.  Because stdin et al need not be constants,
  50    we initialize them in the _initialize_symmisc function at the bottom
  51    of the file.  */
  52 FILE *std_in;
  53 FILE *std_out;
  54 FILE *std_err;
  55
  56 /* Prototypes for local functions */
  57
  58 static void dump_symtab (struct objfile *, struct symtab *,
  59                          struct ui_file *);
  60
  61 static void dump_psymtab (struct objfile *, struct partial_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 static void print_partial_symbols (struct partial_symbol **, int,
  71                                    char *, struct ui_file *);
  72
  73 void _initialize_symmisc (void);
  74
  75 struct print_symbol_args
  76   {
  77     struct symbol *symbol;
  78     int depth;
  79     struct ui_file *outfile;
  80   };
  81
  82 static int print_symbol (void *);
  83 \f
  84 /* Free all the storage associated with the struct symtab <- S.
  85    Note that some symtabs have contents that all live inside one big block of
  86    memory, and some share the contents of another symbol table and so you
  87    should not free the contents on their behalf (except sometimes the
  88    linetable, which maybe per symtab even when the rest is not).
  89    It is s->free_code that says which alternative to use.  */
  90
  91 void
  92 free_symtab (struct symtab *s)
  93 {
  94   int i, n;
  95   struct blockvector *bv;
  96
  97   switch (s->free_code)
  98     {
  99     case free_nothing:
 100       /* All the contents are part of a big block of memory (an obstack),
 101          and some other symtab is in charge of freeing that block.
 102          Therefore, do nothing.  */
 103       break;
 104
 105     case free_linetable:
 106       /* Everything will be freed either by our `free_func'
 107          or by some other symtab, except for our linetable.
 108          Free that now.  */
 109       if (LINETABLE (s))
 110         xfree (LINETABLE (s));
 111       break;
 112     }
 113
 114   /* If there is a single block of memory to free, free it.  */
 115   if (s->free_func != NULL)
 116     s->free_func (s);
 117
 118   /* Free source-related stuff */
 119   if (s->line_charpos != NULL)
 120     xfree (s->line_charpos);
 121   if (s->fullname != NULL)
 122     xfree (s->fullname);
 123   if (s->debugformat != NULL)
 124     xfree (s->debugformat);
 125   xfree (s);
 126 }
 127
 128 void
 129 print_symbol_bcache_statistics (void)
 130 {
 131   struct objfile *objfile;
 132
 133   immediate_quit++;
 134   ALL_OBJFILES (objfile)
 135   {
 136     printf_filtered (_("Byte cache statistics for '%s':\n"), objfile->name);
 137     print_bcache_statistics (objfile->psymbol_cache, "partial symbol cache");
 138   }
 139   immediate_quit--;
 140 }
 141
 142 void
 143 print_objfile_statistics (void)
 144 {
 145   struct objfile *objfile;
 146   struct symtab *s;
 147   struct partial_symtab *ps;
 148   int i, linetables, blockvectors;
 149
 150   immediate_quit++;
 151   ALL_OBJFILES (objfile)
 152   {
 153     printf_filtered (_("Statistics for '%s':\n"), objfile->name);
 154     if (OBJSTAT (objfile, n_stabs) > 0)
 155       printf_filtered (_("  Number of \"stab\" symbols read: %d\n"),
 156                        OBJSTAT (objfile, n_stabs));
 157     if (OBJSTAT (objfile, n_minsyms) > 0)
 158       printf_filtered (_("  Number of \"minimal\" symbols read: %d\n"),
 159                        OBJSTAT (objfile, n_minsyms));
 160     if (OBJSTAT (objfile, n_psyms) > 0)
 161       printf_filtered (_("  Number of \"partial\" symbols read: %d\n"),
 162                        OBJSTAT (objfile, n_psyms));
 163     if (OBJSTAT (objfile, n_syms) > 0)
 164       printf_filtered (_("  Number of \"full\" symbols read: %d\n"),
 165                        OBJSTAT (objfile, n_syms));
 166     if (OBJSTAT (objfile, n_types) > 0)
 167       printf_filtered (_("  Number of \"types\" defined: %d\n"),
 168                        OBJSTAT (objfile, n_types));
 169     i = 0;
 170     ALL_OBJFILE_PSYMTABS (objfile, ps)
 171       {
 172         if (ps->readin == 0)
 173           i++;
 174       }
 175     printf_filtered (_("  Number of psym tables (not yet expanded): %d\n"), i);
 176     i = linetables = blockvectors = 0;
 177     ALL_OBJFILE_SYMTABS (objfile, s)
 178       {
 179         i++;
 180         if (s->linetable != NULL)
 181           linetables++;
 182         if (s->primary == 1)
 183           blockvectors++;
 184       }
 185     printf_filtered (_("  Number of symbol tables: %d\n"), i);
 186     printf_filtered (_("  Number of symbol tables with line tables: %d\n"),
 187                      linetables);
 188     printf_filtered (_("  Number of symbol tables with blockvectors: %d\n"),
 189                      blockvectors);
 190
 191     if (OBJSTAT (objfile, sz_strtab) > 0)
 192       printf_filtered (_("  Space used by a.out string tables: %d\n"),
 193                        OBJSTAT (objfile, sz_strtab));
 194     printf_filtered (_("  Total memory used for objfile obstack: %d\n"),
 195                      obstack_memory_used (&objfile->objfile_obstack));
 196     printf_filtered (_("  Total memory used for psymbol cache: %d\n"),
 197                      bcache_memory_used (objfile->psymbol_cache));
 198     printf_filtered (_("  Total memory used for macro cache: %d\n"),
 199                      bcache_memory_used (objfile->macro_cache));
 200   }
 201   immediate_quit--;
 202 }
 203
 204 static void
 205 dump_objfile (struct objfile *objfile)
 206 {
 207   struct symtab *symtab;
 208   struct partial_symtab *psymtab;
 209
 210   printf_filtered ("\nObject file %s:  ", objfile->name);
 211   printf_filtered ("Objfile at ");
 212   gdb_print_host_address (objfile, gdb_stdout);
 213   printf_filtered (", bfd at ");
 214   gdb_print_host_address (objfile->obfd, gdb_stdout);
 215   printf_filtered (", %d minsyms\n\n",
 216                    objfile->minimal_symbol_count);
 217
 218   if (objfile->psymtabs)
 219     {
 220       printf_filtered ("Psymtabs:\n");
 221       for (psymtab = objfile->psymtabs;
 222            psymtab != NULL;
 223            psymtab = psymtab->next)
 224         {
 225           printf_filtered ("%s at ",
 226                            psymtab->filename);
 227           gdb_print_host_address (psymtab, gdb_stdout);
 228           printf_filtered (", ");
 229           if (psymtab->objfile != objfile)
 230             {
 231               printf_filtered ("NOT ON CHAIN!  ");
 232             }
 233           wrap_here ("  ");
 234         }
 235       printf_filtered ("\n\n");
 236     }
 237
 238   if (objfile->symtabs)
 239     {
 240       printf_filtered ("Symtabs:\n");
 241       for (symtab = objfile->symtabs;
 242            symtab != NULL;
 243            symtab = symtab->next)
 244         {
 245           printf_filtered ("%s at ", symtab->filename);
 246           gdb_print_host_address (symtab, gdb_stdout);
 247           printf_filtered (", ");
 248           if (symtab->objfile != objfile)
 249             {
 250               printf_filtered ("NOT ON CHAIN!  ");
 251             }
 252           wrap_here ("  ");
 253         }
 254       printf_filtered ("\n\n");
 255     }
 256 }
 257
 258 /* Print minimal symbols from this objfile.  */
 259
 260 static void
 261 dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
 262 {
 263   struct minimal_symbol *msymbol;
 264   int index;
 265   char ms_type;
 266
 267   fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
 268   if (objfile->minimal_symbol_count == 0)
 269     {
 270       fprintf_filtered (outfile, "No minimal symbols found.\n");
 271       return;
 272     }
 273   for (index = 0, msymbol = objfile->msymbols;
 274        DEPRECATED_SYMBOL_NAME (msymbol) != NULL; msymbol++, index++)
 275     {
 276       switch (msymbol->type)
 277         {
 278         case mst_unknown:
 279           ms_type = 'u';
 280           break;
 281         case mst_text:
 282           ms_type = 'T';
 283           break;
 284         case mst_solib_trampoline:
 285           ms_type = 'S';
 286           break;
 287         case mst_data:
 288           ms_type = 'D';
 289           break;
 290         case mst_bss:
 291           ms_type = 'B';
 292           break;
 293         case mst_abs:
 294           ms_type = 'A';
 295           break;
 296         case mst_file_text:
 297           ms_type = 't';
 298           break;
 299         case mst_file_data:
 300           ms_type = 'd';
 301           break;
 302         case mst_file_bss:
 303           ms_type = 'b';
 304           break;
 305         default:
 306           ms_type = '?';
 307           break;
 308         }
 309       fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
 310       fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (msymbol)), outfile);
 311       fprintf_filtered (outfile, " %s", DEPRECATED_SYMBOL_NAME (msymbol));
 312       if (SYMBOL_BFD_SECTION (msymbol))
 313         fprintf_filtered (outfile, " section %s",
 314                           bfd_section_name (objfile->obfd,
 315                                             SYMBOL_BFD_SECTION (msymbol)));
 316       if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
 317         {
 318           fprintf_filtered (outfile, "  %s", SYMBOL_DEMANGLED_NAME (msymbol));
 319         }
 320       if (msymbol->filename)
 321         fprintf_filtered (outfile, "  %s", msymbol->filename);
 322       fputs_filtered ("\n", outfile);
 323     }
 324   if (objfile->minimal_symbol_count != index)
 325     {
 326       warning (_("internal error:  minimal symbol count %d != %d"),
 327                objfile->minimal_symbol_count, index);
 328     }
 329   fprintf_filtered (outfile, "\n");
 330 }
 331
 332 static void
 333 dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab,
 334               struct ui_file *outfile)
 335 {
 336   int i;
 337
 338   fprintf_filtered (outfile, "\nPartial symtab for source file %s ",
 339                     psymtab->filename);
 340   fprintf_filtered (outfile, "(object ");
 341   gdb_print_host_address (psymtab, outfile);
 342   fprintf_filtered (outfile, ")\n\n");
 343   fprintf_unfiltered (outfile, "  Read from object file %s (",
 344                       objfile->name);
 345   gdb_print_host_address (objfile, outfile);
 346   fprintf_unfiltered (outfile, ")\n");
 347
 348   if (psymtab->readin)
 349     {
 350       fprintf_filtered (outfile,
 351                         "  Full symtab was read (at ");
 352       gdb_print_host_address (psymtab->symtab, outfile);
 353       fprintf_filtered (outfile, " by function at ");
 354       gdb_print_host_address (psymtab->read_symtab, outfile);
 355       fprintf_filtered (outfile, ")\n");
 356     }
 357
 358   fprintf_filtered (outfile, "  Relocate symbols by ");
 359   for (i = 0; i < psymtab->objfile->num_sections; ++i)
 360     {
 361       if (i != 0)
 362         fprintf_filtered (outfile, ", ");
 363       wrap_here ("    ");
 364       fputs_filtered (paddress (ANOFFSET (psymtab->section_offsets, i)),
 365                       outfile);
 366     }
 367   fprintf_filtered (outfile, "\n");
 368
 369   fprintf_filtered (outfile, "  Symbols cover text addresses ");
 370   fputs_filtered (paddress (psymtab->textlow), outfile);
 371   fprintf_filtered (outfile, "-");
 372   fputs_filtered (paddress (psymtab->texthigh), outfile);
 373   fprintf_filtered (outfile, "\n");
 374   fprintf_filtered (outfile, "  Depends on %d other partial symtabs.\n",
 375                     psymtab->number_of_dependencies);
 376   for (i = 0; i < psymtab->number_of_dependencies; i++)
 377     {
 378       fprintf_filtered (outfile, "    %d ", i);
 379       gdb_print_host_address (psymtab->dependencies[i], outfile);
 380       fprintf_filtered (outfile, " %s\n",
 381                         psymtab->dependencies[i]->filename);
 382     }
 383   if (psymtab->n_global_syms > 0)
 384     {
 385       print_partial_symbols (objfile->global_psymbols.list
 386                              + psymtab->globals_offset,
 387                              psymtab->n_global_syms, "Global", outfile);
 388     }
 389   if (psymtab->n_static_syms > 0)
 390     {
 391       print_partial_symbols (objfile->static_psymbols.list
 392                              + psymtab->statics_offset,
 393                              psymtab->n_static_syms, "Static", outfile);
 394     }
 395   fprintf_filtered (outfile, "\n");
 396 }
 397
 398 static void
 399 dump_symtab_1 (struct objfile *objfile, struct symtab *symtab,
 400                struct ui_file *outfile)
 401 {
 402   int i;
 403   struct dict_iterator iter;
 404   int len, blen;
 405   struct linetable *l;
 406   struct blockvector *bv;
 407   struct symbol *sym;
 408   struct block *b;
 409   int depth;
 410
 411   fprintf_filtered (outfile, "\nSymtab for file %s\n", symtab->filename);
 412   if (symtab->dirname)
 413     fprintf_filtered (outfile, "Compilation directory is %s\n",
 414                       symtab->dirname);
 415   fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
 416   gdb_print_host_address (objfile, outfile);
 417   fprintf_filtered (outfile, ")\n");
 418   fprintf_filtered (outfile, "Language: %s\n", language_str (symtab->language));
 419
 420   /* First print the line table.  */
 421   l = LINETABLE (symtab);
 422   if (l)
 423     {
 424       fprintf_filtered (outfile, "\nLine table:\n\n");
 425       len = l->nitems;
 426       for (i = 0; i < len; i++)
 427         {
 428           fprintf_filtered (outfile, " line %d at ", l->item[i].line);
 429           fputs_filtered (paddress (l->item[i].pc), outfile);
 430           fprintf_filtered (outfile, "\n");
 431         }
 432     }
 433   /* Now print the block info, but only for primary symtabs since we will
 434      print lots of duplicate info otherwise. */
 435   if (symtab->primary)
 436     {
 437       fprintf_filtered (outfile, "\nBlockvector:\n\n");
 438       bv = BLOCKVECTOR (symtab);
 439       len = BLOCKVECTOR_NBLOCKS (bv);
 440       for (i = 0; i < len; i++)
 441         {
 442           b = BLOCKVECTOR_BLOCK (bv, i);
 443           depth = block_depth (b) * 2;
 444           print_spaces (depth, outfile);
 445           fprintf_filtered (outfile, "block #%03d, object at ", i);
 446           gdb_print_host_address (b, outfile);
 447           if (BLOCK_SUPERBLOCK (b))
 448             {
 449               fprintf_filtered (outfile, " under ");
 450               gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
 451             }
 452           /* drow/2002-07-10: We could save the total symbols count
 453              even if we're using a hashtable, but nothing else but this message
 454              wants it.  */
 455           fprintf_filtered (outfile, ", %d syms/buckets in ",
 456                             dict_size (BLOCK_DICT (b)));
 457           fputs_filtered (paddress (BLOCK_START (b)), outfile);
 458           fprintf_filtered (outfile, "..");
 459           fputs_filtered (paddress (BLOCK_END (b)), outfile);
 460           if (BLOCK_FUNCTION (b))
 461             {
 462               fprintf_filtered (outfile, ", function %s", DEPRECATED_SYMBOL_NAME (BLOCK_FUNCTION (b)));
 463               if (SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)) != NULL)
 464                 {
 465                   fprintf_filtered (outfile, ", %s",
 466                                 SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)));
 467                 }
 468             }
 469           fprintf_filtered (outfile, "\n");
 470           /* Now print each symbol in this block (in no particular order, if
 471              we're using a hashtable).  */
 472           ALL_BLOCK_SYMBOLS (b, iter, sym)
 473             {
 474               struct print_symbol_args s;
 475               s.symbol = sym;
 476               s.depth = depth + 1;
 477               s.outfile = outfile;
 478               catch_errors (print_symbol, &s, "Error printing symbol:\n",
 479                             RETURN_MASK_ERROR);
 480             }
 481         }
 482       fprintf_filtered (outfile, "\n");
 483     }
 484   else
 485     {
 486       fprintf_filtered (outfile, "\nBlockvector same as previous symtab\n\n");
 487     }
 488 }
 489
 490 static void
 491 dump_symtab (struct objfile *objfile, struct symtab *symtab,
 492              struct ui_file *outfile)
 493 {
 494   enum language saved_lang;
 495
 496   /* Set the current language to the language of the symtab we're dumping
 497      because certain routines used during dump_symtab() use the current
 498      language to print an image of the symbol.  We'll restore it later.  */
 499   saved_lang = set_language (symtab->language);
 500
 501   dump_symtab_1 (objfile, symtab, outfile);
 502
 503   set_language (saved_lang);
 504 }
 505
 506 void
 507 maintenance_print_symbols (char *args, int from_tty)
 508 {
 509   char **argv;
 510   struct ui_file *outfile;
 511   struct cleanup *cleanups;
 512   char *symname = NULL;
 513   char *filename = DEV_TTY;
 514   struct objfile *objfile;
 515   struct symtab *s;
 516
 517   dont_repeat ();
 518
 519   if (args == NULL)
 520     {
 521       error (_("\
 522 Arguments missing: an output file name and an optional symbol file name"));
 523     }
 524   else if ((argv = buildargv (args)) == NULL)
 525     {
 526       nomem (0);
 527     }
 528   cleanups = make_cleanup_freeargv (argv);
 529
 530   if (argv[0] != NULL)
 531     {
 532       filename = argv[0];
 533       /* If a second arg is supplied, it is a source file name to match on */
 534       if (argv[1] != NULL)
 535         {
 536           symname = argv[1];
 537         }
 538     }
 539
 540   filename = tilde_expand (filename);
 541   make_cleanup (xfree, filename);
 542
 543   outfile = gdb_fopen (filename, FOPEN_WT);
 544   if (outfile == 0)
 545     perror_with_name (filename);
 546   make_cleanup_ui_file_delete (outfile);
 547
 548   immediate_quit++;
 549   ALL_SYMTABS (objfile, s)
 550     if (symname == NULL || strcmp (symname, s->filename) == 0)
 551     dump_symtab (objfile, s, outfile);
 552   immediate_quit--;
 553   do_cleanups (cleanups);
 554 }
 555
 556 /* Print symbol ARGS->SYMBOL on ARGS->OUTFILE.  ARGS->DEPTH says how
 557    far to indent.  ARGS is really a struct print_symbol_args *, but is
 558    declared as char * to get it past catch_errors.  Returns 0 for error,
 559    1 for success.  */
 560
 561 static int
 562 print_symbol (void *args)
 563 {
 564   struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
 565   int depth = ((struct print_symbol_args *) args)->depth;
 566   struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
 567
 568   print_spaces (depth, outfile);
 569   if (SYMBOL_DOMAIN (symbol) == LABEL_DOMAIN)
 570     {
 571       fprintf_filtered (outfile, "label %s at ", SYMBOL_PRINT_NAME (symbol));
 572       fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (symbol)), outfile);
 573       if (SYMBOL_BFD_SECTION (symbol))
 574         fprintf_filtered (outfile, " section %s\n",
 575                        bfd_section_name (SYMBOL_BFD_SECTION (symbol)->owner,
 576                                          SYMBOL_BFD_SECTION (symbol)));
 577       else
 578         fprintf_filtered (outfile, "\n");
 579       return 1;
 580     }
 581   if (SYMBOL_DOMAIN (symbol) == STRUCT_DOMAIN)
 582     {
 583       if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
 584         {
 585           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 586         }
 587       else
 588         {
 589           fprintf_filtered (outfile, "%s %s = ",
 590                          (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
 591                           ? "enum"
 592                      : (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
 593                         ? "struct" : "union")),
 594                             DEPRECATED_SYMBOL_NAME (symbol));
 595           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 596         }
 597       fprintf_filtered (outfile, ";\n");
 598     }
 599   else
 600     {
 601       if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 602         fprintf_filtered (outfile, "typedef ");
 603       if (SYMBOL_TYPE (symbol))
 604         {
 605           /* Print details of types, except for enums where it's clutter.  */
 606           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_PRINT_NAME (symbol),
 607                          outfile,
 608                          TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
 609                          depth);
 610           fprintf_filtered (outfile, "; ");
 611         }
 612       else
 613         fprintf_filtered (outfile, "%s ", SYMBOL_PRINT_NAME (symbol));
 614
 615       switch (SYMBOL_CLASS (symbol))
 616         {
 617         case LOC_CONST:
 618           fprintf_filtered (outfile, "const %ld (0x%lx)",
 619                             SYMBOL_VALUE (symbol),
 620                             SYMBOL_VALUE (symbol));
 621           break;
 622
 623         case LOC_CONST_BYTES:
 624           {
 625             unsigned i;
 626             struct type *type = check_typedef (SYMBOL_TYPE (symbol));
 627             fprintf_filtered (outfile, "const %u hex bytes:",
 628                               TYPE_LENGTH (type));
 629             for (i = 0; i < TYPE_LENGTH (type); i++)
 630               fprintf_filtered (outfile, " %02x",
 631                                 (unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
 632           }
 633           break;
 634
 635         case LOC_STATIC:
 636           fprintf_filtered (outfile, "static at ");
 637           fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (symbol)), outfile);
 638           if (SYMBOL_BFD_SECTION (symbol))
 639             fprintf_filtered (outfile, " section %s",
 640                               bfd_section_name
 641                               (SYMBOL_BFD_SECTION (symbol)->owner,
 642                                SYMBOL_BFD_SECTION (symbol)));
 643           break;
 644
 645         case LOC_REGISTER:
 646           fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
 647           break;
 648
 649         case LOC_ARG:
 650           fprintf_filtered (outfile, "arg at offset 0x%lx",
 651                             SYMBOL_VALUE (symbol));
 652           break;
 653
 654         case LOC_REF_ARG:
 655           fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
 656           break;
 657
 658         case LOC_REGPARM:
 659           fprintf_filtered (outfile, "parameter register %ld", SYMBOL_VALUE (symbol));
 660           break;
 661
 662         case LOC_REGPARM_ADDR:
 663           fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
 664           break;
 665
 666         case LOC_LOCAL:
 667           fprintf_filtered (outfile, "local at offset 0x%lx",
 668                             SYMBOL_VALUE (symbol));
 669           break;
 670
 671         case LOC_BASEREG:
 672           fprintf_filtered (outfile, "local at 0x%lx from register %d",
 673                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 674           break;
 675
 676         case LOC_BASEREG_ARG:
 677           fprintf_filtered (outfile, "arg at 0x%lx from register %d",
 678                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 679           break;
 680
 681         case LOC_TYPEDEF:
 682           break;
 683
 684         case LOC_LABEL:
 685           fprintf_filtered (outfile, "label at ");
 686           fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (symbol)), outfile);
 687           if (SYMBOL_BFD_SECTION (symbol))
 688             fprintf_filtered (outfile, " section %s",
 689                               bfd_section_name
 690                               (SYMBOL_BFD_SECTION (symbol)->owner,
 691                                SYMBOL_BFD_SECTION (symbol)));
 692           break;
 693
 694         case LOC_BLOCK:
 695           fprintf_filtered (outfile, "block object ");
 696           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 697           fprintf_filtered (outfile, ", ");
 698           fputs_filtered (paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
 699                           outfile);
 700           fprintf_filtered (outfile, "..");
 701           fputs_filtered (paddress (BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
 702                           outfile);
 703           if (SYMBOL_BFD_SECTION (symbol))
 704             fprintf_filtered (outfile, " section %s",
 705                               bfd_section_name
 706                               (SYMBOL_BFD_SECTION (symbol)->owner,
 707                                SYMBOL_BFD_SECTION (symbol)));
 708           break;
 709
 710         case LOC_COMPUTED:
 711         case LOC_COMPUTED_ARG:
 712           fprintf_filtered (outfile, "computed at runtime");
 713           break;
 714
 715         case LOC_UNRESOLVED:
 716           fprintf_filtered (outfile, "unresolved");
 717           break;
 718
 719         case LOC_OPTIMIZED_OUT:
 720           fprintf_filtered (outfile, "optimized out");
 721           break;
 722
 723         default:
 724           fprintf_filtered (outfile, "botched symbol class %x",
 725                             SYMBOL_CLASS (symbol));
 726           break;
 727         }
 728     }
 729   fprintf_filtered (outfile, "\n");
 730   return 1;
 731 }
 732
 733 void
 734 maintenance_print_psymbols (char *args, int from_tty)
 735 {
 736   char **argv;
 737   struct ui_file *outfile;
 738   struct cleanup *cleanups;
 739   char *symname = NULL;
 740   char *filename = DEV_TTY;
 741   struct objfile *objfile;
 742   struct partial_symtab *ps;
 743
 744   dont_repeat ();
 745
 746   if (args == NULL)
 747     {
 748       error (_("print-psymbols takes an output file name and optional symbol file name"));
 749     }
 750   else if ((argv = buildargv (args)) == NULL)
 751     {
 752       nomem (0);
 753     }
 754   cleanups = make_cleanup_freeargv (argv);
 755
 756   if (argv[0] != NULL)
 757     {
 758       filename = argv[0];
 759       /* If a second arg is supplied, it is a source file name to match on */
 760       if (argv[1] != NULL)
 761         {
 762           symname = argv[1];
 763         }
 764     }
 765
 766   filename = tilde_expand (filename);
 767   make_cleanup (xfree, filename);
 768
 769   outfile = gdb_fopen (filename, FOPEN_WT);
 770   if (outfile == 0)
 771     perror_with_name (filename);
 772   make_cleanup_ui_file_delete (outfile);
 773
 774   immediate_quit++;
 775   ALL_PSYMTABS (objfile, ps)
 776     if (symname == NULL || strcmp (symname, ps->filename) == 0)
 777     dump_psymtab (objfile, ps, outfile);
 778   immediate_quit--;
 779   do_cleanups (cleanups);
 780 }
 781
 782 static void
 783 print_partial_symbols (struct partial_symbol **p, int count, char *what,
 784                        struct ui_file *outfile)
 785 {
 786   fprintf_filtered (outfile, "  %s partial symbols:\n", what);
 787   while (count-- > 0)
 788     {
 789       fprintf_filtered (outfile, "    `%s'", DEPRECATED_SYMBOL_NAME (*p));
 790       if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
 791         {
 792           fprintf_filtered (outfile, "  `%s'", SYMBOL_DEMANGLED_NAME (*p));
 793         }
 794       fputs_filtered (", ", outfile);
 795       switch (SYMBOL_DOMAIN (*p))
 796         {
 797         case UNDEF_DOMAIN:
 798           fputs_filtered ("undefined domain, ", outfile);
 799           break;
 800         case VAR_DOMAIN:
 801           /* This is the usual thing -- don't print it */
 802           break;
 803         case STRUCT_DOMAIN:
 804           fputs_filtered ("struct domain, ", outfile);
 805           break;
 806         case LABEL_DOMAIN:
 807           fputs_filtered ("label domain, ", outfile);
 808           break;
 809         default:
 810           fputs_filtered ("<invalid domain>, ", outfile);
 811           break;
 812         }
 813       switch (SYMBOL_CLASS (*p))
 814         {
 815         case LOC_UNDEF:
 816           fputs_filtered ("undefined", outfile);
 817           break;
 818         case LOC_CONST:
 819           fputs_filtered ("constant int", outfile);
 820           break;
 821         case LOC_STATIC:
 822           fputs_filtered ("static", outfile);
 823           break;
 824         case LOC_REGISTER:
 825           fputs_filtered ("register", outfile);
 826           break;
 827         case LOC_ARG:
 828           fputs_filtered ("pass by value", outfile);
 829           break;
 830         case LOC_REF_ARG:
 831           fputs_filtered ("pass by reference", outfile);
 832           break;
 833         case LOC_REGPARM:
 834           fputs_filtered ("register parameter", outfile);
 835           break;
 836         case LOC_REGPARM_ADDR:
 837           fputs_filtered ("register address parameter", outfile);
 838           break;
 839         case LOC_LOCAL:
 840           fputs_filtered ("stack parameter", outfile);
 841           break;
 842         case LOC_TYPEDEF:
 843           fputs_filtered ("type", outfile);
 844           break;
 845         case LOC_LABEL:
 846           fputs_filtered ("label", outfile);
 847           break;
 848         case LOC_BLOCK:
 849           fputs_filtered ("function", outfile);
 850           break;
 851         case LOC_CONST_BYTES:
 852           fputs_filtered ("constant bytes", outfile);
 853           break;
 854         case LOC_UNRESOLVED:
 855           fputs_filtered ("unresolved", outfile);
 856           break;
 857         case LOC_OPTIMIZED_OUT:
 858           fputs_filtered ("optimized out", outfile);
 859           break;
 860         case LOC_COMPUTED:
 861         case LOC_COMPUTED_ARG:
 862           fputs_filtered ("computed at runtime", outfile);
 863           break;
 864         default:
 865           fputs_filtered ("<invalid location>", outfile);
 866           break;
 867         }
 868       fputs_filtered (", ", outfile);
 869       fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (*p)), outfile);
 870       fprintf_filtered (outfile, "\n");
 871       p++;
 872     }
 873 }
 874
 875 void
 876 maintenance_print_msymbols (char *args, int from_tty)
 877 {
 878   char **argv;
 879   struct ui_file *outfile;
 880   struct cleanup *cleanups;
 881   char *filename = DEV_TTY;
 882   char *symname = NULL;
 883   struct objfile *objfile;
 884
 885   struct stat sym_st, obj_st;
 886
 887   dont_repeat ();
 888
 889   if (args == NULL)
 890     {
 891       error (_("print-msymbols takes an output file name and optional symbol file name"));
 892     }
 893   else if ((argv = buildargv (args)) == NULL)
 894     {
 895       nomem (0);
 896     }
 897   cleanups = make_cleanup_freeargv (argv);
 898
 899   if (argv[0] != NULL)
 900     {
 901       filename = argv[0];
 902       /* If a second arg is supplied, it is a source file name to match on */
 903       if (argv[1] != NULL)
 904         {
 905           symname = xfullpath (argv[1]);
 906           make_cleanup (xfree, symname);
 907           if (symname && stat (symname, &sym_st))
 908             perror_with_name (symname);
 909         }
 910     }
 911
 912   filename = tilde_expand (filename);
 913   make_cleanup (xfree, filename);
 914
 915   outfile = gdb_fopen (filename, FOPEN_WT);
 916   if (outfile == 0)
 917     perror_with_name (filename);
 918   make_cleanup_ui_file_delete (outfile);
 919
 920   immediate_quit++;
 921   ALL_OBJFILES (objfile)
 922     if (symname == NULL
 923         || (!stat (objfile->name, &obj_st) && sym_st.st_ino == obj_st.st_ino))
 924       dump_msymbols (objfile, outfile);
 925   immediate_quit--;
 926   fprintf_filtered (outfile, "\n\n");
 927   do_cleanups (cleanups);
 928 }
 929
 930 void
 931 maintenance_print_objfiles (char *ignore, int from_tty)
 932 {
 933   struct objfile *objfile;
 934
 935   dont_repeat ();
 936
 937   immediate_quit++;
 938   ALL_OBJFILES (objfile)
 939     dump_objfile (objfile);
 940   immediate_quit--;
 941 }
 942
 943
 944 /* List all the symbol tables whose names match REGEXP (optional).  */
 945 void
 946 maintenance_info_symtabs (char *regexp, int from_tty)
 947 {
 948   struct objfile *objfile;
 949
 950   if (regexp)
 951     re_comp (regexp);
 952
 953   ALL_OBJFILES (objfile)
 954     {
 955       struct symtab *symtab;
 956
 957       /* We don't want to print anything for this objfile until we
 958          actually find a symtab whose name matches.  */
 959       int printed_objfile_start = 0;
 960
 961       ALL_OBJFILE_SYMTABS (objfile, symtab)
 962         if (! regexp
 963             || re_exec (symtab->filename))
 964           {
 965             if (! printed_objfile_start)
 966               {
 967                 printf_filtered ("{ objfile %s ", objfile->name);
 968                 wrap_here ("  ");
 969                 printf_filtered ("((struct objfile *) %p)\n", objfile);
 970                 printed_objfile_start = 1;
 971               }
 972
 973             printf_filtered ("  { symtab %s ", symtab->filename);
 974             wrap_here ("    ");
 975             printf_filtered ("((struct symtab *) %p)\n", symtab);
 976             printf_filtered ("    dirname %s\n",
 977                              symtab->dirname ? symtab->dirname : "(null)");
 978             printf_filtered ("    fullname %s\n",
 979                              symtab->fullname ? symtab->fullname : "(null)");
 980             printf_filtered ("    blockvector ((struct blockvector *) %p)%s\n",
 981                              symtab->blockvector,
 982                              symtab->primary ? " (primary)" : "");
 983             printf_filtered ("    linetable ((struct linetable *) %p)\n",
 984                              symtab->linetable);
 985             printf_filtered ("    debugformat %s\n", symtab->debugformat);
 986             printf_filtered ("  }\n");
 987           }
 988
 989       if (printed_objfile_start)
 990         printf_filtered ("}\n");
 991     }
 992 }
 993
 994
 995 /* List all the partial symbol tables whose names match REGEXP (optional).  */
 996 void
 997 maintenance_info_psymtabs (char *regexp, int from_tty)
 998 {
 999   struct objfile *objfile;
1000
1001   if (regexp)
1002     re_comp (regexp);
1003
1004   ALL_OBJFILES (objfile)
1005     {
1006       struct partial_symtab *psymtab;
1007
1008       /* We don't want to print anything for this objfile until we
1009          actually find a symtab whose name matches.  */
1010       int printed_objfile_start = 0;
1011
1012       ALL_OBJFILE_PSYMTABS (objfile, psymtab)
1013         if (! regexp
1014             || re_exec (psymtab->filename))
1015           {
1016             if (! printed_objfile_start)
1017               {
1018                 printf_filtered ("{ objfile %s ", objfile->name);
1019                 wrap_here ("  ");
1020                 printf_filtered ("((struct objfile *) %p)\n", objfile);
1021                 printed_objfile_start = 1;
1022               }
1023
1024             printf_filtered ("  { psymtab %s ", psymtab->filename);
1025             wrap_here ("    ");
1026             printf_filtered ("((struct partial_symtab *) %p)\n", psymtab);
1027             printf_filtered ("    readin %s\n",
1028                              psymtab->readin ? "yes" : "no");
1029             printf_filtered ("    fullname %s\n",
1030                              psymtab->fullname ? psymtab->fullname : "(null)");
1031             printf_filtered ("    text addresses ");
1032             fputs_filtered (paddress (psymtab->textlow), gdb_stdout);
1033             printf_filtered (" -- ");
1034             fputs_filtered (paddress (psymtab->texthigh), gdb_stdout);
1035             printf_filtered ("\n");
1036             printf_filtered ("    globals ");
1037             if (psymtab->n_global_syms)
1038               {
1039                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1040                                  (psymtab->objfile->global_psymbols.list
1041                                   + psymtab->globals_offset),
1042                                  psymtab->n_global_syms);
1043               }
1044             else
1045               printf_filtered ("(none)\n");
1046             printf_filtered ("    statics ");
1047             if (psymtab->n_static_syms)
1048               {
1049                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1050                                  (psymtab->objfile->static_psymbols.list
1051                                   + psymtab->statics_offset),
1052                                  psymtab->n_static_syms);
1053               }
1054             else
1055               printf_filtered ("(none)\n");
1056             printf_filtered ("    dependencies ");
1057             if (psymtab->number_of_dependencies)
1058               {
1059                 int i;
1060
1061                 printf_filtered ("{\n");
1062                 for (i = 0; i < psymtab->number_of_dependencies; i++)
1063                   {
1064                     struct partial_symtab *dep = psymtab->dependencies[i];
1065
1066                     /* Note the string concatenation there --- no comma.  */
1067                     printf_filtered ("      psymtab %s "
1068                                      "((struct partial_symtab *) %p)\n",
1069                                      dep->filename, dep);
1070                   }
1071                 printf_filtered ("    }\n");
1072               }
1073             else
1074               printf_filtered ("(none)\n");
1075             printf_filtered ("  }\n");
1076           }
1077
1078       if (printed_objfile_start)
1079         printf_filtered ("}\n");
1080     }
1081 }
1082
1083
1084 /* Check consistency of psymtabs and symtabs.  */
1085
1086 void
1087 maintenance_check_symtabs (char *ignore, int from_tty)
1088 {
1089   struct symbol *sym;
1090   struct partial_symbol **psym;
1091   struct symtab *s = NULL;
1092   struct partial_symtab *ps;
1093   struct blockvector *bv;
1094   struct objfile *objfile;
1095   struct block *b;
1096   int length;
1097
1098   ALL_PSYMTABS (objfile, ps)
1099   {
1100     s = PSYMTAB_TO_SYMTAB (ps);
1101     if (s == NULL)
1102       continue;
1103     bv = BLOCKVECTOR (s);
1104     b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1105     psym = ps->objfile->static_psymbols.list + ps->statics_offset;
1106     length = ps->n_static_syms;
1107     while (length--)
1108       {
1109         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1110                                    NULL, SYMBOL_DOMAIN (*psym));
1111         if (!sym)
1112           {
1113             printf_filtered ("Static symbol `");
1114             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1115             printf_filtered ("' only found in ");
1116             puts_filtered (ps->filename);
1117             printf_filtered (" psymtab\n");
1118           }
1119         psym++;
1120       }
1121     b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1122     psym = ps->objfile->global_psymbols.list + ps->globals_offset;
1123     length = ps->n_global_syms;
1124     while (length--)
1125       {
1126         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1127                                    NULL, SYMBOL_DOMAIN (*psym));
1128         if (!sym)
1129           {
1130             printf_filtered ("Global symbol `");
1131             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1132             printf_filtered ("' only found in ");
1133             puts_filtered (ps->filename);
1134             printf_filtered (" psymtab\n");
1135           }
1136         psym++;
1137       }
1138     if (ps->texthigh < ps->textlow)
1139       {
1140         printf_filtered ("Psymtab ");
1141         puts_filtered (ps->filename);
1142         printf_filtered (" covers bad range ");
1143         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1144         printf_filtered (" - ");
1145         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1146         printf_filtered ("\n");
1147         continue;
1148       }
1149     if (ps->texthigh == 0)
1150       continue;
1151     if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
1152       {
1153         printf_filtered ("Psymtab ");
1154         puts_filtered (ps->filename);
1155         printf_filtered (" covers ");
1156         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1157         printf_filtered (" - ");
1158         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1159         printf_filtered (" but symtab covers only ");
1160         fputs_filtered (paddress (BLOCK_START (b)), gdb_stdout);
1161         printf_filtered (" - ");
1162         fputs_filtered (paddress (BLOCK_END (b)), gdb_stdout);
1163         printf_filtered ("\n");
1164       }
1165   }
1166 }
1167 \f
1168
1169 /* Return the nexting depth of a block within other blocks in its symtab.  */
1170
1171 static int
1172 block_depth (struct block *block)
1173 {
1174   int i = 0;
1175   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
1176     {
1177       i++;
1178     }
1179   return i;
1180 }
1181 \f
1182
1183 /* Increase the space allocated for LISTP, which is probably
1184    global_psymbols or static_psymbols. This space will eventually
1185    be freed in free_objfile().  */
1186
1187 void
1188 extend_psymbol_list (struct psymbol_allocation_list *listp,
1189                      struct objfile *objfile)
1190 {
1191   int new_size;
1192   if (listp->size == 0)
1193     {
1194       new_size = 255;
1195       listp->list = (struct partial_symbol **)
1196         xmalloc (new_size * sizeof (struct partial_symbol *));
1197     }
1198   else
1199     {
1200       new_size = listp->size * 2;
1201       listp->list = (struct partial_symbol **)
1202         xrealloc ((char *) listp->list,
1203                   new_size * sizeof (struct partial_symbol *));
1204     }
1205   /* Next assumes we only went one over.  Should be good if
1206      program works correctly */
1207   listp->next = listp->list + listp->size;
1208   listp->size = new_size;
1209 }
1210
1211
1212 /* Do early runtime initializations. */
1213 void
1214 _initialize_symmisc (void)
1215 {
1216   std_in = stdin;
1217   std_out = stdout;
1218   std_err = stderr;
1219 }