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_TYPEDEF:
 672           break;
 673
 674         case LOC_LABEL:
 675           fprintf_filtered (outfile, "label at ");
 676           fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (symbol)), outfile);
 677           if (SYMBOL_BFD_SECTION (symbol))
 678             fprintf_filtered (outfile, " section %s",
 679                               bfd_section_name
 680                               (SYMBOL_BFD_SECTION (symbol)->owner,
 681                                SYMBOL_BFD_SECTION (symbol)));
 682           break;
 683
 684         case LOC_BLOCK:
 685           fprintf_filtered (outfile, "block object ");
 686           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 687           fprintf_filtered (outfile, ", ");
 688           fputs_filtered (paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
 689                           outfile);
 690           fprintf_filtered (outfile, "..");
 691           fputs_filtered (paddress (BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
 692                           outfile);
 693           if (SYMBOL_BFD_SECTION (symbol))
 694             fprintf_filtered (outfile, " section %s",
 695                               bfd_section_name
 696                               (SYMBOL_BFD_SECTION (symbol)->owner,
 697                                SYMBOL_BFD_SECTION (symbol)));
 698           break;
 699
 700         case LOC_COMPUTED:
 701         case LOC_COMPUTED_ARG:
 702           fprintf_filtered (outfile, "computed at runtime");
 703           break;
 704
 705         case LOC_UNRESOLVED:
 706           fprintf_filtered (outfile, "unresolved");
 707           break;
 708
 709         case LOC_OPTIMIZED_OUT:
 710           fprintf_filtered (outfile, "optimized out");
 711           break;
 712
 713         default:
 714           fprintf_filtered (outfile, "botched symbol class %x",
 715                             SYMBOL_CLASS (symbol));
 716           break;
 717         }
 718     }
 719   fprintf_filtered (outfile, "\n");
 720   return 1;
 721 }
 722
 723 void
 724 maintenance_print_psymbols (char *args, int from_tty)
 725 {
 726   char **argv;
 727   struct ui_file *outfile;
 728   struct cleanup *cleanups;
 729   char *symname = NULL;
 730   char *filename = DEV_TTY;
 731   struct objfile *objfile;
 732   struct partial_symtab *ps;
 733
 734   dont_repeat ();
 735
 736   if (args == NULL)
 737     {
 738       error (_("print-psymbols takes an output file name and optional symbol file name"));
 739     }
 740   else if ((argv = buildargv (args)) == NULL)
 741     {
 742       nomem (0);
 743     }
 744   cleanups = make_cleanup_freeargv (argv);
 745
 746   if (argv[0] != NULL)
 747     {
 748       filename = argv[0];
 749       /* If a second arg is supplied, it is a source file name to match on */
 750       if (argv[1] != NULL)
 751         {
 752           symname = argv[1];
 753         }
 754     }
 755
 756   filename = tilde_expand (filename);
 757   make_cleanup (xfree, filename);
 758
 759   outfile = gdb_fopen (filename, FOPEN_WT);
 760   if (outfile == 0)
 761     perror_with_name (filename);
 762   make_cleanup_ui_file_delete (outfile);
 763
 764   immediate_quit++;
 765   ALL_PSYMTABS (objfile, ps)
 766     if (symname == NULL || strcmp (symname, ps->filename) == 0)
 767     dump_psymtab (objfile, ps, outfile);
 768   immediate_quit--;
 769   do_cleanups (cleanups);
 770 }
 771
 772 static void
 773 print_partial_symbols (struct partial_symbol **p, int count, char *what,
 774                        struct ui_file *outfile)
 775 {
 776   fprintf_filtered (outfile, "  %s partial symbols:\n", what);
 777   while (count-- > 0)
 778     {
 779       fprintf_filtered (outfile, "    `%s'", DEPRECATED_SYMBOL_NAME (*p));
 780       if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
 781         {
 782           fprintf_filtered (outfile, "  `%s'", SYMBOL_DEMANGLED_NAME (*p));
 783         }
 784       fputs_filtered (", ", outfile);
 785       switch (SYMBOL_DOMAIN (*p))
 786         {
 787         case UNDEF_DOMAIN:
 788           fputs_filtered ("undefined domain, ", outfile);
 789           break;
 790         case VAR_DOMAIN:
 791           /* This is the usual thing -- don't print it */
 792           break;
 793         case STRUCT_DOMAIN:
 794           fputs_filtered ("struct domain, ", outfile);
 795           break;
 796         case LABEL_DOMAIN:
 797           fputs_filtered ("label domain, ", outfile);
 798           break;
 799         default:
 800           fputs_filtered ("<invalid domain>, ", outfile);
 801           break;
 802         }
 803       switch (SYMBOL_CLASS (*p))
 804         {
 805         case LOC_UNDEF:
 806           fputs_filtered ("undefined", outfile);
 807           break;
 808         case LOC_CONST:
 809           fputs_filtered ("constant int", outfile);
 810           break;
 811         case LOC_STATIC:
 812           fputs_filtered ("static", outfile);
 813           break;
 814         case LOC_REGISTER:
 815           fputs_filtered ("register", outfile);
 816           break;
 817         case LOC_ARG:
 818           fputs_filtered ("pass by value", outfile);
 819           break;
 820         case LOC_REF_ARG:
 821           fputs_filtered ("pass by reference", outfile);
 822           break;
 823         case LOC_REGPARM:
 824           fputs_filtered ("register parameter", outfile);
 825           break;
 826         case LOC_REGPARM_ADDR:
 827           fputs_filtered ("register address parameter", outfile);
 828           break;
 829         case LOC_LOCAL:
 830           fputs_filtered ("stack parameter", outfile);
 831           break;
 832         case LOC_TYPEDEF:
 833           fputs_filtered ("type", outfile);
 834           break;
 835         case LOC_LABEL:
 836           fputs_filtered ("label", outfile);
 837           break;
 838         case LOC_BLOCK:
 839           fputs_filtered ("function", outfile);
 840           break;
 841         case LOC_CONST_BYTES:
 842           fputs_filtered ("constant bytes", outfile);
 843           break;
 844         case LOC_UNRESOLVED:
 845           fputs_filtered ("unresolved", outfile);
 846           break;
 847         case LOC_OPTIMIZED_OUT:
 848           fputs_filtered ("optimized out", outfile);
 849           break;
 850         case LOC_COMPUTED:
 851         case LOC_COMPUTED_ARG:
 852           fputs_filtered ("computed at runtime", outfile);
 853           break;
 854         default:
 855           fputs_filtered ("<invalid location>", outfile);
 856           break;
 857         }
 858       fputs_filtered (", ", outfile);
 859       fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (*p)), outfile);
 860       fprintf_filtered (outfile, "\n");
 861       p++;
 862     }
 863 }
 864
 865 void
 866 maintenance_print_msymbols (char *args, int from_tty)
 867 {
 868   char **argv;
 869   struct ui_file *outfile;
 870   struct cleanup *cleanups;
 871   char *filename = DEV_TTY;
 872   char *symname = NULL;
 873   struct objfile *objfile;
 874
 875   struct stat sym_st, obj_st;
 876
 877   dont_repeat ();
 878
 879   if (args == NULL)
 880     {
 881       error (_("print-msymbols takes an output file name and optional symbol file name"));
 882     }
 883   else if ((argv = buildargv (args)) == NULL)
 884     {
 885       nomem (0);
 886     }
 887   cleanups = make_cleanup_freeargv (argv);
 888
 889   if (argv[0] != NULL)
 890     {
 891       filename = argv[0];
 892       /* If a second arg is supplied, it is a source file name to match on */
 893       if (argv[1] != NULL)
 894         {
 895           symname = xfullpath (argv[1]);
 896           make_cleanup (xfree, symname);
 897           if (symname && stat (symname, &sym_st))
 898             perror_with_name (symname);
 899         }
 900     }
 901
 902   filename = tilde_expand (filename);
 903   make_cleanup (xfree, filename);
 904
 905   outfile = gdb_fopen (filename, FOPEN_WT);
 906   if (outfile == 0)
 907     perror_with_name (filename);
 908   make_cleanup_ui_file_delete (outfile);
 909
 910   immediate_quit++;
 911   ALL_OBJFILES (objfile)
 912     if (symname == NULL
 913         || (!stat (objfile->name, &obj_st) && sym_st.st_ino == obj_st.st_ino))
 914       dump_msymbols (objfile, outfile);
 915   immediate_quit--;
 916   fprintf_filtered (outfile, "\n\n");
 917   do_cleanups (cleanups);
 918 }
 919
 920 void
 921 maintenance_print_objfiles (char *ignore, int from_tty)
 922 {
 923   struct objfile *objfile;
 924
 925   dont_repeat ();
 926
 927   immediate_quit++;
 928   ALL_OBJFILES (objfile)
 929     dump_objfile (objfile);
 930   immediate_quit--;
 931 }
 932
 933
 934 /* List all the symbol tables whose names match REGEXP (optional).  */
 935 void
 936 maintenance_info_symtabs (char *regexp, int from_tty)
 937 {
 938   struct objfile *objfile;
 939
 940   if (regexp)
 941     re_comp (regexp);
 942
 943   ALL_OBJFILES (objfile)
 944     {
 945       struct symtab *symtab;
 946
 947       /* We don't want to print anything for this objfile until we
 948          actually find a symtab whose name matches.  */
 949       int printed_objfile_start = 0;
 950
 951       ALL_OBJFILE_SYMTABS (objfile, symtab)
 952         if (! regexp
 953             || re_exec (symtab->filename))
 954           {
 955             if (! printed_objfile_start)
 956               {
 957                 printf_filtered ("{ objfile %s ", objfile->name);
 958                 wrap_here ("  ");
 959                 printf_filtered ("((struct objfile *) %p)\n", objfile);
 960                 printed_objfile_start = 1;
 961               }
 962
 963             printf_filtered ("  { symtab %s ", symtab->filename);
 964             wrap_here ("    ");
 965             printf_filtered ("((struct symtab *) %p)\n", symtab);
 966             printf_filtered ("    dirname %s\n",
 967                              symtab->dirname ? symtab->dirname : "(null)");
 968             printf_filtered ("    fullname %s\n",
 969                              symtab->fullname ? symtab->fullname : "(null)");
 970             printf_filtered ("    blockvector ((struct blockvector *) %p)%s\n",
 971                              symtab->blockvector,
 972                              symtab->primary ? " (primary)" : "");
 973             printf_filtered ("    linetable ((struct linetable *) %p)\n",
 974                              symtab->linetable);
 975             printf_filtered ("    debugformat %s\n", symtab->debugformat);
 976             printf_filtered ("  }\n");
 977           }
 978
 979       if (printed_objfile_start)
 980         printf_filtered ("}\n");
 981     }
 982 }
 983
 984
 985 /* List all the partial symbol tables whose names match REGEXP (optional).  */
 986 void
 987 maintenance_info_psymtabs (char *regexp, int from_tty)
 988 {
 989   struct objfile *objfile;
 990
 991   if (regexp)
 992     re_comp (regexp);
 993
 994   ALL_OBJFILES (objfile)
 995     {
 996       struct partial_symtab *psymtab;
 997
 998       /* We don't want to print anything for this objfile until we
 999          actually find a symtab whose name matches.  */
1000       int printed_objfile_start = 0;
1001
1002       ALL_OBJFILE_PSYMTABS (objfile, psymtab)
1003         if (! regexp
1004             || re_exec (psymtab->filename))
1005           {
1006             if (! printed_objfile_start)
1007               {
1008                 printf_filtered ("{ objfile %s ", objfile->name);
1009                 wrap_here ("  ");
1010                 printf_filtered ("((struct objfile *) %p)\n", objfile);
1011                 printed_objfile_start = 1;
1012               }
1013
1014             printf_filtered ("  { psymtab %s ", psymtab->filename);
1015             wrap_here ("    ");
1016             printf_filtered ("((struct partial_symtab *) %p)\n", psymtab);
1017             printf_filtered ("    readin %s\n",
1018                              psymtab->readin ? "yes" : "no");
1019             printf_filtered ("    fullname %s\n",
1020                              psymtab->fullname ? psymtab->fullname : "(null)");
1021             printf_filtered ("    text addresses ");
1022             fputs_filtered (paddress (psymtab->textlow), gdb_stdout);
1023             printf_filtered (" -- ");
1024             fputs_filtered (paddress (psymtab->texthigh), gdb_stdout);
1025             printf_filtered ("\n");
1026             printf_filtered ("    globals ");
1027             if (psymtab->n_global_syms)
1028               {
1029                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1030                                  (psymtab->objfile->global_psymbols.list
1031                                   + psymtab->globals_offset),
1032                                  psymtab->n_global_syms);
1033               }
1034             else
1035               printf_filtered ("(none)\n");
1036             printf_filtered ("    statics ");
1037             if (psymtab->n_static_syms)
1038               {
1039                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1040                                  (psymtab->objfile->static_psymbols.list
1041                                   + psymtab->statics_offset),
1042                                  psymtab->n_static_syms);
1043               }
1044             else
1045               printf_filtered ("(none)\n");
1046             printf_filtered ("    dependencies ");
1047             if (psymtab->number_of_dependencies)
1048               {
1049                 int i;
1050
1051                 printf_filtered ("{\n");
1052                 for (i = 0; i < psymtab->number_of_dependencies; i++)
1053                   {
1054                     struct partial_symtab *dep = psymtab->dependencies[i];
1055
1056                     /* Note the string concatenation there --- no comma.  */
1057                     printf_filtered ("      psymtab %s "
1058                                      "((struct partial_symtab *) %p)\n",
1059                                      dep->filename, dep);
1060                   }
1061                 printf_filtered ("    }\n");
1062               }
1063             else
1064               printf_filtered ("(none)\n");
1065             printf_filtered ("  }\n");
1066           }
1067
1068       if (printed_objfile_start)
1069         printf_filtered ("}\n");
1070     }
1071 }
1072
1073
1074 /* Check consistency of psymtabs and symtabs.  */
1075
1076 void
1077 maintenance_check_symtabs (char *ignore, int from_tty)
1078 {
1079   struct symbol *sym;
1080   struct partial_symbol **psym;
1081   struct symtab *s = NULL;
1082   struct partial_symtab *ps;
1083   struct blockvector *bv;
1084   struct objfile *objfile;
1085   struct block *b;
1086   int length;
1087
1088   ALL_PSYMTABS (objfile, ps)
1089   {
1090     s = PSYMTAB_TO_SYMTAB (ps);
1091     if (s == NULL)
1092       continue;
1093     bv = BLOCKVECTOR (s);
1094     b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1095     psym = ps->objfile->static_psymbols.list + ps->statics_offset;
1096     length = ps->n_static_syms;
1097     while (length--)
1098       {
1099         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1100                                    NULL, SYMBOL_DOMAIN (*psym));
1101         if (!sym)
1102           {
1103             printf_filtered ("Static symbol `");
1104             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1105             printf_filtered ("' only found in ");
1106             puts_filtered (ps->filename);
1107             printf_filtered (" psymtab\n");
1108           }
1109         psym++;
1110       }
1111     b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1112     psym = ps->objfile->global_psymbols.list + ps->globals_offset;
1113     length = ps->n_global_syms;
1114     while (length--)
1115       {
1116         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1117                                    NULL, SYMBOL_DOMAIN (*psym));
1118         if (!sym)
1119           {
1120             printf_filtered ("Global symbol `");
1121             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1122             printf_filtered ("' only found in ");
1123             puts_filtered (ps->filename);
1124             printf_filtered (" psymtab\n");
1125           }
1126         psym++;
1127       }
1128     if (ps->texthigh < ps->textlow)
1129       {
1130         printf_filtered ("Psymtab ");
1131         puts_filtered (ps->filename);
1132         printf_filtered (" covers bad range ");
1133         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1134         printf_filtered (" - ");
1135         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1136         printf_filtered ("\n");
1137         continue;
1138       }
1139     if (ps->texthigh == 0)
1140       continue;
1141     if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
1142       {
1143         printf_filtered ("Psymtab ");
1144         puts_filtered (ps->filename);
1145         printf_filtered (" covers ");
1146         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1147         printf_filtered (" - ");
1148         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1149         printf_filtered (" but symtab covers only ");
1150         fputs_filtered (paddress (BLOCK_START (b)), gdb_stdout);
1151         printf_filtered (" - ");
1152         fputs_filtered (paddress (BLOCK_END (b)), gdb_stdout);
1153         printf_filtered ("\n");
1154       }
1155   }
1156 }
1157 \f
1158
1159 /* Return the nexting depth of a block within other blocks in its symtab.  */
1160
1161 static int
1162 block_depth (struct block *block)
1163 {
1164   int i = 0;
1165   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
1166     {
1167       i++;
1168     }
1169   return i;
1170 }
1171 \f
1172
1173 /* Increase the space allocated for LISTP, which is probably
1174    global_psymbols or static_psymbols. This space will eventually
1175    be freed in free_objfile().  */
1176
1177 void
1178 extend_psymbol_list (struct psymbol_allocation_list *listp,
1179                      struct objfile *objfile)
1180 {
1181   int new_size;
1182   if (listp->size == 0)
1183     {
1184       new_size = 255;
1185       listp->list = (struct partial_symbol **)
1186         xmalloc (new_size * sizeof (struct partial_symbol *));
1187     }
1188   else
1189     {
1190       new_size = listp->size * 2;
1191       listp->list = (struct partial_symbol **)
1192         xrealloc ((char *) listp->list,
1193                   new_size * sizeof (struct partial_symbol *));
1194     }
1195   /* Next assumes we only went one over.  Should be good if
1196      program works correctly */
1197   listp->next = listp->list + listp->size;
1198   listp->size = new_size;
1199 }
1200
1201
1202 /* Do early runtime initializations. */
1203 void
1204 _initialize_symmisc (void)
1205 {
1206   std_in = stdin;
1207   std_out = stdout;
1208   std_err = stderr;
1209 }