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_LOCAL_ARG:
 655           fprintf_filtered (outfile, "arg at offset 0x%lx from fp",
 656                             SYMBOL_VALUE (symbol));
 657           break;
 658
 659         case LOC_REF_ARG:
 660           fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
 661           break;
 662
 663         case LOC_REGPARM:
 664           fprintf_filtered (outfile, "parameter register %ld", SYMBOL_VALUE (symbol));
 665           break;
 666
 667         case LOC_REGPARM_ADDR:
 668           fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
 669           break;
 670
 671         case LOC_LOCAL:
 672           fprintf_filtered (outfile, "local at offset 0x%lx",
 673                             SYMBOL_VALUE (symbol));
 674           break;
 675
 676         case LOC_BASEREG:
 677           fprintf_filtered (outfile, "local at 0x%lx from register %d",
 678                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 679           break;
 680
 681         case LOC_BASEREG_ARG:
 682           fprintf_filtered (outfile, "arg at 0x%lx from register %d",
 683                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 684           break;
 685
 686         case LOC_TYPEDEF:
 687           break;
 688
 689         case LOC_LABEL:
 690           fprintf_filtered (outfile, "label at ");
 691           fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (symbol)), outfile);
 692           if (SYMBOL_BFD_SECTION (symbol))
 693             fprintf_filtered (outfile, " section %s",
 694                               bfd_section_name
 695                               (SYMBOL_BFD_SECTION (symbol)->owner,
 696                                SYMBOL_BFD_SECTION (symbol)));
 697           break;
 698
 699         case LOC_BLOCK:
 700           fprintf_filtered (outfile, "block object ");
 701           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 702           fprintf_filtered (outfile, ", ");
 703           fputs_filtered (paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (symbol))),
 704                           outfile);
 705           fprintf_filtered (outfile, "..");
 706           fputs_filtered (paddress (BLOCK_END (SYMBOL_BLOCK_VALUE (symbol))),
 707                           outfile);
 708           if (SYMBOL_BFD_SECTION (symbol))
 709             fprintf_filtered (outfile, " section %s",
 710                               bfd_section_name
 711                               (SYMBOL_BFD_SECTION (symbol)->owner,
 712                                SYMBOL_BFD_SECTION (symbol)));
 713           break;
 714
 715         case LOC_COMPUTED:
 716         case LOC_COMPUTED_ARG:
 717           fprintf_filtered (outfile, "computed at runtime");
 718           break;
 719
 720         case LOC_UNRESOLVED:
 721           fprintf_filtered (outfile, "unresolved");
 722           break;
 723
 724         case LOC_OPTIMIZED_OUT:
 725           fprintf_filtered (outfile, "optimized out");
 726           break;
 727
 728         default:
 729           fprintf_filtered (outfile, "botched symbol class %x",
 730                             SYMBOL_CLASS (symbol));
 731           break;
 732         }
 733     }
 734   fprintf_filtered (outfile, "\n");
 735   return 1;
 736 }
 737
 738 void
 739 maintenance_print_psymbols (char *args, int from_tty)
 740 {
 741   char **argv;
 742   struct ui_file *outfile;
 743   struct cleanup *cleanups;
 744   char *symname = NULL;
 745   char *filename = DEV_TTY;
 746   struct objfile *objfile;
 747   struct partial_symtab *ps;
 748
 749   dont_repeat ();
 750
 751   if (args == NULL)
 752     {
 753       error (_("print-psymbols takes an output file name and optional symbol file name"));
 754     }
 755   else if ((argv = buildargv (args)) == NULL)
 756     {
 757       nomem (0);
 758     }
 759   cleanups = make_cleanup_freeargv (argv);
 760
 761   if (argv[0] != NULL)
 762     {
 763       filename = argv[0];
 764       /* If a second arg is supplied, it is a source file name to match on */
 765       if (argv[1] != NULL)
 766         {
 767           symname = argv[1];
 768         }
 769     }
 770
 771   filename = tilde_expand (filename);
 772   make_cleanup (xfree, filename);
 773
 774   outfile = gdb_fopen (filename, FOPEN_WT);
 775   if (outfile == 0)
 776     perror_with_name (filename);
 777   make_cleanup_ui_file_delete (outfile);
 778
 779   immediate_quit++;
 780   ALL_PSYMTABS (objfile, ps)
 781     if (symname == NULL || strcmp (symname, ps->filename) == 0)
 782     dump_psymtab (objfile, ps, outfile);
 783   immediate_quit--;
 784   do_cleanups (cleanups);
 785 }
 786
 787 static void
 788 print_partial_symbols (struct partial_symbol **p, int count, char *what,
 789                        struct ui_file *outfile)
 790 {
 791   fprintf_filtered (outfile, "  %s partial symbols:\n", what);
 792   while (count-- > 0)
 793     {
 794       fprintf_filtered (outfile, "    `%s'", DEPRECATED_SYMBOL_NAME (*p));
 795       if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
 796         {
 797           fprintf_filtered (outfile, "  `%s'", SYMBOL_DEMANGLED_NAME (*p));
 798         }
 799       fputs_filtered (", ", outfile);
 800       switch (SYMBOL_DOMAIN (*p))
 801         {
 802         case UNDEF_DOMAIN:
 803           fputs_filtered ("undefined domain, ", outfile);
 804           break;
 805         case VAR_DOMAIN:
 806           /* This is the usual thing -- don't print it */
 807           break;
 808         case STRUCT_DOMAIN:
 809           fputs_filtered ("struct domain, ", outfile);
 810           break;
 811         case LABEL_DOMAIN:
 812           fputs_filtered ("label domain, ", outfile);
 813           break;
 814         default:
 815           fputs_filtered ("<invalid domain>, ", outfile);
 816           break;
 817         }
 818       switch (SYMBOL_CLASS (*p))
 819         {
 820         case LOC_UNDEF:
 821           fputs_filtered ("undefined", outfile);
 822           break;
 823         case LOC_CONST:
 824           fputs_filtered ("constant int", outfile);
 825           break;
 826         case LOC_STATIC:
 827           fputs_filtered ("static", outfile);
 828           break;
 829         case LOC_REGISTER:
 830           fputs_filtered ("register", outfile);
 831           break;
 832         case LOC_ARG:
 833           fputs_filtered ("pass by value", outfile);
 834           break;
 835         case LOC_REF_ARG:
 836           fputs_filtered ("pass by reference", outfile);
 837           break;
 838         case LOC_REGPARM:
 839           fputs_filtered ("register parameter", outfile);
 840           break;
 841         case LOC_REGPARM_ADDR:
 842           fputs_filtered ("register address parameter", outfile);
 843           break;
 844         case LOC_LOCAL:
 845           fputs_filtered ("stack parameter", outfile);
 846           break;
 847         case LOC_TYPEDEF:
 848           fputs_filtered ("type", outfile);
 849           break;
 850         case LOC_LABEL:
 851           fputs_filtered ("label", outfile);
 852           break;
 853         case LOC_BLOCK:
 854           fputs_filtered ("function", outfile);
 855           break;
 856         case LOC_CONST_BYTES:
 857           fputs_filtered ("constant bytes", outfile);
 858           break;
 859         case LOC_LOCAL_ARG:
 860           fputs_filtered ("shuffled arg", outfile);
 861           break;
 862         case LOC_UNRESOLVED:
 863           fputs_filtered ("unresolved", outfile);
 864           break;
 865         case LOC_OPTIMIZED_OUT:
 866           fputs_filtered ("optimized out", outfile);
 867           break;
 868         case LOC_COMPUTED:
 869         case LOC_COMPUTED_ARG:
 870           fputs_filtered ("computed at runtime", outfile);
 871           break;
 872         default:
 873           fputs_filtered ("<invalid location>", outfile);
 874           break;
 875         }
 876       fputs_filtered (", ", outfile);
 877       fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (*p)), outfile);
 878       fprintf_filtered (outfile, "\n");
 879       p++;
 880     }
 881 }
 882
 883 void
 884 maintenance_print_msymbols (char *args, int from_tty)
 885 {
 886   char **argv;
 887   struct ui_file *outfile;
 888   struct cleanup *cleanups;
 889   char *filename = DEV_TTY;
 890   char *symname = NULL;
 891   struct objfile *objfile;
 892
 893   struct stat sym_st, obj_st;
 894
 895   dont_repeat ();
 896
 897   if (args == NULL)
 898     {
 899       error (_("print-msymbols takes an output file name and optional symbol file name"));
 900     }
 901   else if ((argv = buildargv (args)) == NULL)
 902     {
 903       nomem (0);
 904     }
 905   cleanups = make_cleanup_freeargv (argv);
 906
 907   if (argv[0] != NULL)
 908     {
 909       filename = argv[0];
 910       /* If a second arg is supplied, it is a source file name to match on */
 911       if (argv[1] != NULL)
 912         {
 913           symname = xfullpath (argv[1]);
 914           make_cleanup (xfree, symname);
 915           if (symname && stat (symname, &sym_st))
 916             perror_with_name (symname);
 917         }
 918     }
 919
 920   filename = tilde_expand (filename);
 921   make_cleanup (xfree, filename);
 922
 923   outfile = gdb_fopen (filename, FOPEN_WT);
 924   if (outfile == 0)
 925     perror_with_name (filename);
 926   make_cleanup_ui_file_delete (outfile);
 927
 928   immediate_quit++;
 929   ALL_OBJFILES (objfile)
 930     if (symname == NULL
 931         || (!stat (objfile->name, &obj_st) && sym_st.st_ino == obj_st.st_ino))
 932       dump_msymbols (objfile, outfile);
 933   immediate_quit--;
 934   fprintf_filtered (outfile, "\n\n");
 935   do_cleanups (cleanups);
 936 }
 937
 938 void
 939 maintenance_print_objfiles (char *ignore, int from_tty)
 940 {
 941   struct objfile *objfile;
 942
 943   dont_repeat ();
 944
 945   immediate_quit++;
 946   ALL_OBJFILES (objfile)
 947     dump_objfile (objfile);
 948   immediate_quit--;
 949 }
 950
 951
 952 /* List all the symbol tables whose names match REGEXP (optional).  */
 953 void
 954 maintenance_info_symtabs (char *regexp, int from_tty)
 955 {
 956   struct objfile *objfile;
 957
 958   if (regexp)
 959     re_comp (regexp);
 960
 961   ALL_OBJFILES (objfile)
 962     {
 963       struct symtab *symtab;
 964
 965       /* We don't want to print anything for this objfile until we
 966          actually find a symtab whose name matches.  */
 967       int printed_objfile_start = 0;
 968
 969       ALL_OBJFILE_SYMTABS (objfile, symtab)
 970         if (! regexp
 971             || re_exec (symtab->filename))
 972           {
 973             if (! printed_objfile_start)
 974               {
 975                 printf_filtered ("{ objfile %s ", objfile->name);
 976                 wrap_here ("  ");
 977                 printf_filtered ("((struct objfile *) %p)\n", objfile);
 978                 printed_objfile_start = 1;
 979               }
 980
 981             printf_filtered ("  { symtab %s ", symtab->filename);
 982             wrap_here ("    ");
 983             printf_filtered ("((struct symtab *) %p)\n", symtab);
 984             printf_filtered ("    dirname %s\n",
 985                              symtab->dirname ? symtab->dirname : "(null)");
 986             printf_filtered ("    fullname %s\n",
 987                              symtab->fullname ? symtab->fullname : "(null)");
 988             printf_filtered ("    blockvector ((struct blockvector *) %p)%s\n",
 989                              symtab->blockvector,
 990                              symtab->primary ? " (primary)" : "");
 991             printf_filtered ("    linetable ((struct linetable *) %p)\n",
 992                              symtab->linetable);
 993             printf_filtered ("    debugformat %s\n", symtab->debugformat);
 994             printf_filtered ("  }\n");
 995           }
 996
 997       if (printed_objfile_start)
 998         printf_filtered ("}\n");
 999     }
1000 }
1001
1002
1003 /* List all the partial symbol tables whose names match REGEXP (optional).  */
1004 void
1005 maintenance_info_psymtabs (char *regexp, int from_tty)
1006 {
1007   struct objfile *objfile;
1008
1009   if (regexp)
1010     re_comp (regexp);
1011
1012   ALL_OBJFILES (objfile)
1013     {
1014       struct partial_symtab *psymtab;
1015
1016       /* We don't want to print anything for this objfile until we
1017          actually find a symtab whose name matches.  */
1018       int printed_objfile_start = 0;
1019
1020       ALL_OBJFILE_PSYMTABS (objfile, psymtab)
1021         if (! regexp
1022             || re_exec (psymtab->filename))
1023           {
1024             if (! printed_objfile_start)
1025               {
1026                 printf_filtered ("{ objfile %s ", objfile->name);
1027                 wrap_here ("  ");
1028                 printf_filtered ("((struct objfile *) %p)\n", objfile);
1029                 printed_objfile_start = 1;
1030               }
1031
1032             printf_filtered ("  { psymtab %s ", psymtab->filename);
1033             wrap_here ("    ");
1034             printf_filtered ("((struct partial_symtab *) %p)\n", psymtab);
1035             printf_filtered ("    readin %s\n",
1036                              psymtab->readin ? "yes" : "no");
1037             printf_filtered ("    fullname %s\n",
1038                              psymtab->fullname ? psymtab->fullname : "(null)");
1039             printf_filtered ("    text addresses ");
1040             fputs_filtered (paddress (psymtab->textlow), gdb_stdout);
1041             printf_filtered (" -- ");
1042             fputs_filtered (paddress (psymtab->texthigh), gdb_stdout);
1043             printf_filtered ("\n");
1044             printf_filtered ("    globals ");
1045             if (psymtab->n_global_syms)
1046               {
1047                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1048                                  (psymtab->objfile->global_psymbols.list
1049                                   + psymtab->globals_offset),
1050                                  psymtab->n_global_syms);
1051               }
1052             else
1053               printf_filtered ("(none)\n");
1054             printf_filtered ("    statics ");
1055             if (psymtab->n_static_syms)
1056               {
1057                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1058                                  (psymtab->objfile->static_psymbols.list
1059                                   + psymtab->statics_offset),
1060                                  psymtab->n_static_syms);
1061               }
1062             else
1063               printf_filtered ("(none)\n");
1064             printf_filtered ("    dependencies ");
1065             if (psymtab->number_of_dependencies)
1066               {
1067                 int i;
1068
1069                 printf_filtered ("{\n");
1070                 for (i = 0; i < psymtab->number_of_dependencies; i++)
1071                   {
1072                     struct partial_symtab *dep = psymtab->dependencies[i];
1073
1074                     /* Note the string concatenation there --- no comma.  */
1075                     printf_filtered ("      psymtab %s "
1076                                      "((struct partial_symtab *) %p)\n",
1077                                      dep->filename, dep);
1078                   }
1079                 printf_filtered ("    }\n");
1080               }
1081             else
1082               printf_filtered ("(none)\n");
1083             printf_filtered ("  }\n");
1084           }
1085
1086       if (printed_objfile_start)
1087         printf_filtered ("}\n");
1088     }
1089 }
1090
1091
1092 /* Check consistency of psymtabs and symtabs.  */
1093
1094 void
1095 maintenance_check_symtabs (char *ignore, int from_tty)
1096 {
1097   struct symbol *sym;
1098   struct partial_symbol **psym;
1099   struct symtab *s = NULL;
1100   struct partial_symtab *ps;
1101   struct blockvector *bv;
1102   struct objfile *objfile;
1103   struct block *b;
1104   int length;
1105
1106   ALL_PSYMTABS (objfile, ps)
1107   {
1108     s = PSYMTAB_TO_SYMTAB (ps);
1109     if (s == NULL)
1110       continue;
1111     bv = BLOCKVECTOR (s);
1112     b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1113     psym = ps->objfile->static_psymbols.list + ps->statics_offset;
1114     length = ps->n_static_syms;
1115     while (length--)
1116       {
1117         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1118                                    NULL, SYMBOL_DOMAIN (*psym));
1119         if (!sym)
1120           {
1121             printf_filtered ("Static symbol `");
1122             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1123             printf_filtered ("' only found in ");
1124             puts_filtered (ps->filename);
1125             printf_filtered (" psymtab\n");
1126           }
1127         psym++;
1128       }
1129     b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1130     psym = ps->objfile->global_psymbols.list + ps->globals_offset;
1131     length = ps->n_global_syms;
1132     while (length--)
1133       {
1134         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1135                                    NULL, SYMBOL_DOMAIN (*psym));
1136         if (!sym)
1137           {
1138             printf_filtered ("Global symbol `");
1139             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1140             printf_filtered ("' only found in ");
1141             puts_filtered (ps->filename);
1142             printf_filtered (" psymtab\n");
1143           }
1144         psym++;
1145       }
1146     if (ps->texthigh < ps->textlow)
1147       {
1148         printf_filtered ("Psymtab ");
1149         puts_filtered (ps->filename);
1150         printf_filtered (" covers bad range ");
1151         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1152         printf_filtered (" - ");
1153         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1154         printf_filtered ("\n");
1155         continue;
1156       }
1157     if (ps->texthigh == 0)
1158       continue;
1159     if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
1160       {
1161         printf_filtered ("Psymtab ");
1162         puts_filtered (ps->filename);
1163         printf_filtered (" covers ");
1164         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1165         printf_filtered (" - ");
1166         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1167         printf_filtered (" but symtab covers only ");
1168         fputs_filtered (paddress (BLOCK_START (b)), gdb_stdout);
1169         printf_filtered (" - ");
1170         fputs_filtered (paddress (BLOCK_END (b)), gdb_stdout);
1171         printf_filtered ("\n");
1172       }
1173   }
1174 }
1175 \f
1176
1177 /* Return the nexting depth of a block within other blocks in its symtab.  */
1178
1179 static int
1180 block_depth (struct block *block)
1181 {
1182   int i = 0;
1183   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
1184     {
1185       i++;
1186     }
1187   return i;
1188 }
1189 \f
1190
1191 /* Increase the space allocated for LISTP, which is probably
1192    global_psymbols or static_psymbols. This space will eventually
1193    be freed in free_objfile().  */
1194
1195 void
1196 extend_psymbol_list (struct psymbol_allocation_list *listp,
1197                      struct objfile *objfile)
1198 {
1199   int new_size;
1200   if (listp->size == 0)
1201     {
1202       new_size = 255;
1203       listp->list = (struct partial_symbol **)
1204         xmalloc (new_size * sizeof (struct partial_symbol *));
1205     }
1206   else
1207     {
1208       new_size = listp->size * 2;
1209       listp->list = (struct partial_symbol **)
1210         xrealloc ((char *) listp->list,
1211                   new_size * sizeof (struct partial_symbol *));
1212     }
1213   /* Next assumes we only went one over.  Should be good if
1214      program works correctly */
1215   listp->next = listp->list + listp->size;
1216   listp->size = new_size;
1217 }
1218
1219
1220 /* Do early runtime initializations. */
1221 void
1222 _initialize_symmisc (void)
1223 {
1224   std_in = stdin;
1225   std_out = stdout;
1226   std_err = stderr;
1227 }