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           if (SYMBOL_IS_ARGUMENT (symbol))
 647             fprintf_filtered (outfile, "parameter register %ld",
 648                               SYMBOL_VALUE (symbol));
 649           else
 650             fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
 651           break;
 652
 653         case LOC_ARG:
 654           fprintf_filtered (outfile, "arg at offset 0x%lx",
 655                             SYMBOL_VALUE (symbol));
 656           break;
 657
 658         case LOC_REF_ARG:
 659           fprintf_filtered (outfile, "reference arg at 0x%lx", 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           fprintf_filtered (outfile, "computed at runtime");
 702           break;
 703
 704         case LOC_UNRESOLVED:
 705           fprintf_filtered (outfile, "unresolved");
 706           break;
 707
 708         case LOC_OPTIMIZED_OUT:
 709           fprintf_filtered (outfile, "optimized out");
 710           break;
 711
 712         default:
 713           fprintf_filtered (outfile, "botched symbol class %x",
 714                             SYMBOL_CLASS (symbol));
 715           break;
 716         }
 717     }
 718   fprintf_filtered (outfile, "\n");
 719   return 1;
 720 }
 721
 722 void
 723 maintenance_print_psymbols (char *args, int from_tty)
 724 {
 725   char **argv;
 726   struct ui_file *outfile;
 727   struct cleanup *cleanups;
 728   char *symname = NULL;
 729   char *filename = DEV_TTY;
 730   struct objfile *objfile;
 731   struct partial_symtab *ps;
 732
 733   dont_repeat ();
 734
 735   if (args == NULL)
 736     {
 737       error (_("print-psymbols takes an output file name and optional symbol file name"));
 738     }
 739   else if ((argv = buildargv (args)) == NULL)
 740     {
 741       nomem (0);
 742     }
 743   cleanups = make_cleanup_freeargv (argv);
 744
 745   if (argv[0] != NULL)
 746     {
 747       filename = argv[0];
 748       /* If a second arg is supplied, it is a source file name to match on */
 749       if (argv[1] != NULL)
 750         {
 751           symname = argv[1];
 752         }
 753     }
 754
 755   filename = tilde_expand (filename);
 756   make_cleanup (xfree, filename);
 757
 758   outfile = gdb_fopen (filename, FOPEN_WT);
 759   if (outfile == 0)
 760     perror_with_name (filename);
 761   make_cleanup_ui_file_delete (outfile);
 762
 763   immediate_quit++;
 764   ALL_PSYMTABS (objfile, ps)
 765     if (symname == NULL || strcmp (symname, ps->filename) == 0)
 766     dump_psymtab (objfile, ps, outfile);
 767   immediate_quit--;
 768   do_cleanups (cleanups);
 769 }
 770
 771 static void
 772 print_partial_symbols (struct partial_symbol **p, int count, char *what,
 773                        struct ui_file *outfile)
 774 {
 775   fprintf_filtered (outfile, "  %s partial symbols:\n", what);
 776   while (count-- > 0)
 777     {
 778       fprintf_filtered (outfile, "    `%s'", DEPRECATED_SYMBOL_NAME (*p));
 779       if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
 780         {
 781           fprintf_filtered (outfile, "  `%s'", SYMBOL_DEMANGLED_NAME (*p));
 782         }
 783       fputs_filtered (", ", outfile);
 784       switch (SYMBOL_DOMAIN (*p))
 785         {
 786         case UNDEF_DOMAIN:
 787           fputs_filtered ("undefined domain, ", outfile);
 788           break;
 789         case VAR_DOMAIN:
 790           /* This is the usual thing -- don't print it */
 791           break;
 792         case STRUCT_DOMAIN:
 793           fputs_filtered ("struct domain, ", outfile);
 794           break;
 795         case LABEL_DOMAIN:
 796           fputs_filtered ("label domain, ", outfile);
 797           break;
 798         default:
 799           fputs_filtered ("<invalid domain>, ", outfile);
 800           break;
 801         }
 802       switch (SYMBOL_CLASS (*p))
 803         {
 804         case LOC_UNDEF:
 805           fputs_filtered ("undefined", outfile);
 806           break;
 807         case LOC_CONST:
 808           fputs_filtered ("constant int", outfile);
 809           break;
 810         case LOC_STATIC:
 811           fputs_filtered ("static", outfile);
 812           break;
 813         case LOC_REGISTER:
 814           fputs_filtered ("register", outfile);
 815           break;
 816         case LOC_ARG:
 817           fputs_filtered ("pass by value", outfile);
 818           break;
 819         case LOC_REF_ARG:
 820           fputs_filtered ("pass by reference", outfile);
 821           break;
 822         case LOC_REGPARM_ADDR:
 823           fputs_filtered ("register address parameter", outfile);
 824           break;
 825         case LOC_LOCAL:
 826           fputs_filtered ("stack parameter", outfile);
 827           break;
 828         case LOC_TYPEDEF:
 829           fputs_filtered ("type", outfile);
 830           break;
 831         case LOC_LABEL:
 832           fputs_filtered ("label", outfile);
 833           break;
 834         case LOC_BLOCK:
 835           fputs_filtered ("function", outfile);
 836           break;
 837         case LOC_CONST_BYTES:
 838           fputs_filtered ("constant bytes", outfile);
 839           break;
 840         case LOC_UNRESOLVED:
 841           fputs_filtered ("unresolved", outfile);
 842           break;
 843         case LOC_OPTIMIZED_OUT:
 844           fputs_filtered ("optimized out", outfile);
 845           break;
 846         case LOC_COMPUTED:
 847           fputs_filtered ("computed at runtime", outfile);
 848           break;
 849         default:
 850           fputs_filtered ("<invalid location>", outfile);
 851           break;
 852         }
 853       fputs_filtered (", ", outfile);
 854       fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (*p)), outfile);
 855       fprintf_filtered (outfile, "\n");
 856       p++;
 857     }
 858 }
 859
 860 void
 861 maintenance_print_msymbols (char *args, int from_tty)
 862 {
 863   char **argv;
 864   struct ui_file *outfile;
 865   struct cleanup *cleanups;
 866   char *filename = DEV_TTY;
 867   char *symname = NULL;
 868   struct objfile *objfile;
 869
 870   struct stat sym_st, obj_st;
 871
 872   dont_repeat ();
 873
 874   if (args == NULL)
 875     {
 876       error (_("print-msymbols takes an output file name and optional symbol file name"));
 877     }
 878   else if ((argv = buildargv (args)) == NULL)
 879     {
 880       nomem (0);
 881     }
 882   cleanups = make_cleanup_freeargv (argv);
 883
 884   if (argv[0] != NULL)
 885     {
 886       filename = argv[0];
 887       /* If a second arg is supplied, it is a source file name to match on */
 888       if (argv[1] != NULL)
 889         {
 890           symname = xfullpath (argv[1]);
 891           make_cleanup (xfree, symname);
 892           if (symname && stat (symname, &sym_st))
 893             perror_with_name (symname);
 894         }
 895     }
 896
 897   filename = tilde_expand (filename);
 898   make_cleanup (xfree, filename);
 899
 900   outfile = gdb_fopen (filename, FOPEN_WT);
 901   if (outfile == 0)
 902     perror_with_name (filename);
 903   make_cleanup_ui_file_delete (outfile);
 904
 905   immediate_quit++;
 906   ALL_OBJFILES (objfile)
 907     if (symname == NULL
 908         || (!stat (objfile->name, &obj_st) && sym_st.st_ino == obj_st.st_ino))
 909       dump_msymbols (objfile, outfile);
 910   immediate_quit--;
 911   fprintf_filtered (outfile, "\n\n");
 912   do_cleanups (cleanups);
 913 }
 914
 915 void
 916 maintenance_print_objfiles (char *ignore, int from_tty)
 917 {
 918   struct objfile *objfile;
 919
 920   dont_repeat ();
 921
 922   immediate_quit++;
 923   ALL_OBJFILES (objfile)
 924     dump_objfile (objfile);
 925   immediate_quit--;
 926 }
 927
 928
 929 /* List all the symbol tables whose names match REGEXP (optional).  */
 930 void
 931 maintenance_info_symtabs (char *regexp, int from_tty)
 932 {
 933   struct objfile *objfile;
 934
 935   if (regexp)
 936     re_comp (regexp);
 937
 938   ALL_OBJFILES (objfile)
 939     {
 940       struct symtab *symtab;
 941
 942       /* We don't want to print anything for this objfile until we
 943          actually find a symtab whose name matches.  */
 944       int printed_objfile_start = 0;
 945
 946       ALL_OBJFILE_SYMTABS (objfile, symtab)
 947         if (! regexp
 948             || re_exec (symtab->filename))
 949           {
 950             if (! printed_objfile_start)
 951               {
 952                 printf_filtered ("{ objfile %s ", objfile->name);
 953                 wrap_here ("  ");
 954                 printf_filtered ("((struct objfile *) %p)\n", objfile);
 955                 printed_objfile_start = 1;
 956               }
 957
 958             printf_filtered ("  { symtab %s ", symtab->filename);
 959             wrap_here ("    ");
 960             printf_filtered ("((struct symtab *) %p)\n", symtab);
 961             printf_filtered ("    dirname %s\n",
 962                              symtab->dirname ? symtab->dirname : "(null)");
 963             printf_filtered ("    fullname %s\n",
 964                              symtab->fullname ? symtab->fullname : "(null)");
 965             printf_filtered ("    blockvector ((struct blockvector *) %p)%s\n",
 966                              symtab->blockvector,
 967                              symtab->primary ? " (primary)" : "");
 968             printf_filtered ("    linetable ((struct linetable *) %p)\n",
 969                              symtab->linetable);
 970             printf_filtered ("    debugformat %s\n", symtab->debugformat);
 971             printf_filtered ("  }\n");
 972           }
 973
 974       if (printed_objfile_start)
 975         printf_filtered ("}\n");
 976     }
 977 }
 978
 979
 980 /* List all the partial symbol tables whose names match REGEXP (optional).  */
 981 void
 982 maintenance_info_psymtabs (char *regexp, int from_tty)
 983 {
 984   struct objfile *objfile;
 985
 986   if (regexp)
 987     re_comp (regexp);
 988
 989   ALL_OBJFILES (objfile)
 990     {
 991       struct partial_symtab *psymtab;
 992
 993       /* We don't want to print anything for this objfile until we
 994          actually find a symtab whose name matches.  */
 995       int printed_objfile_start = 0;
 996
 997       ALL_OBJFILE_PSYMTABS (objfile, psymtab)
 998         if (! regexp
 999             || re_exec (psymtab->filename))
1000           {
1001             if (! printed_objfile_start)
1002               {
1003                 printf_filtered ("{ objfile %s ", objfile->name);
1004                 wrap_here ("  ");
1005                 printf_filtered ("((struct objfile *) %p)\n", objfile);
1006                 printed_objfile_start = 1;
1007               }
1008
1009             printf_filtered ("  { psymtab %s ", psymtab->filename);
1010             wrap_here ("    ");
1011             printf_filtered ("((struct partial_symtab *) %p)\n", psymtab);
1012             printf_filtered ("    readin %s\n",
1013                              psymtab->readin ? "yes" : "no");
1014             printf_filtered ("    fullname %s\n",
1015                              psymtab->fullname ? psymtab->fullname : "(null)");
1016             printf_filtered ("    text addresses ");
1017             fputs_filtered (paddress (psymtab->textlow), gdb_stdout);
1018             printf_filtered (" -- ");
1019             fputs_filtered (paddress (psymtab->texthigh), gdb_stdout);
1020             printf_filtered ("\n");
1021             printf_filtered ("    globals ");
1022             if (psymtab->n_global_syms)
1023               {
1024                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1025                                  (psymtab->objfile->global_psymbols.list
1026                                   + psymtab->globals_offset),
1027                                  psymtab->n_global_syms);
1028               }
1029             else
1030               printf_filtered ("(none)\n");
1031             printf_filtered ("    statics ");
1032             if (psymtab->n_static_syms)
1033               {
1034                 printf_filtered ("(* (struct partial_symbol **) %p @ %d)\n",
1035                                  (psymtab->objfile->static_psymbols.list
1036                                   + psymtab->statics_offset),
1037                                  psymtab->n_static_syms);
1038               }
1039             else
1040               printf_filtered ("(none)\n");
1041             printf_filtered ("    dependencies ");
1042             if (psymtab->number_of_dependencies)
1043               {
1044                 int i;
1045
1046                 printf_filtered ("{\n");
1047                 for (i = 0; i < psymtab->number_of_dependencies; i++)
1048                   {
1049                     struct partial_symtab *dep = psymtab->dependencies[i];
1050
1051                     /* Note the string concatenation there --- no comma.  */
1052                     printf_filtered ("      psymtab %s "
1053                                      "((struct partial_symtab *) %p)\n",
1054                                      dep->filename, dep);
1055                   }
1056                 printf_filtered ("    }\n");
1057               }
1058             else
1059               printf_filtered ("(none)\n");
1060             printf_filtered ("  }\n");
1061           }
1062
1063       if (printed_objfile_start)
1064         printf_filtered ("}\n");
1065     }
1066 }
1067
1068
1069 /* Check consistency of psymtabs and symtabs.  */
1070
1071 void
1072 maintenance_check_symtabs (char *ignore, int from_tty)
1073 {
1074   struct symbol *sym;
1075   struct partial_symbol **psym;
1076   struct symtab *s = NULL;
1077   struct partial_symtab *ps;
1078   struct blockvector *bv;
1079   struct objfile *objfile;
1080   struct block *b;
1081   int length;
1082
1083   ALL_PSYMTABS (objfile, ps)
1084   {
1085     s = PSYMTAB_TO_SYMTAB (ps);
1086     if (s == NULL)
1087       continue;
1088     bv = BLOCKVECTOR (s);
1089     b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1090     psym = ps->objfile->static_psymbols.list + ps->statics_offset;
1091     length = ps->n_static_syms;
1092     while (length--)
1093       {
1094         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1095                                    NULL, SYMBOL_DOMAIN (*psym));
1096         if (!sym)
1097           {
1098             printf_filtered ("Static symbol `");
1099             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1100             printf_filtered ("' only found in ");
1101             puts_filtered (ps->filename);
1102             printf_filtered (" psymtab\n");
1103           }
1104         psym++;
1105       }
1106     b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1107     psym = ps->objfile->global_psymbols.list + ps->globals_offset;
1108     length = ps->n_global_syms;
1109     while (length--)
1110       {
1111         sym = lookup_block_symbol (b, DEPRECATED_SYMBOL_NAME (*psym),
1112                                    NULL, SYMBOL_DOMAIN (*psym));
1113         if (!sym)
1114           {
1115             printf_filtered ("Global symbol `");
1116             puts_filtered (DEPRECATED_SYMBOL_NAME (*psym));
1117             printf_filtered ("' only found in ");
1118             puts_filtered (ps->filename);
1119             printf_filtered (" psymtab\n");
1120           }
1121         psym++;
1122       }
1123     if (ps->texthigh < ps->textlow)
1124       {
1125         printf_filtered ("Psymtab ");
1126         puts_filtered (ps->filename);
1127         printf_filtered (" covers bad range ");
1128         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1129         printf_filtered (" - ");
1130         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1131         printf_filtered ("\n");
1132         continue;
1133       }
1134     if (ps->texthigh == 0)
1135       continue;
1136     if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
1137       {
1138         printf_filtered ("Psymtab ");
1139         puts_filtered (ps->filename);
1140         printf_filtered (" covers ");
1141         fputs_filtered (paddress (ps->textlow), gdb_stdout);
1142         printf_filtered (" - ");
1143         fputs_filtered (paddress (ps->texthigh), gdb_stdout);
1144         printf_filtered (" but symtab covers only ");
1145         fputs_filtered (paddress (BLOCK_START (b)), gdb_stdout);
1146         printf_filtered (" - ");
1147         fputs_filtered (paddress (BLOCK_END (b)), gdb_stdout);
1148         printf_filtered ("\n");
1149       }
1150   }
1151 }
1152 \f
1153
1154 /* Return the nexting depth of a block within other blocks in its symtab.  */
1155
1156 static int
1157 block_depth (struct block *block)
1158 {
1159   int i = 0;
1160   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
1161     {
1162       i++;
1163     }
1164   return i;
1165 }
1166 \f
1167
1168 /* Increase the space allocated for LISTP, which is probably
1169    global_psymbols or static_psymbols. This space will eventually
1170    be freed in free_objfile().  */
1171
1172 void
1173 extend_psymbol_list (struct psymbol_allocation_list *listp,
1174                      struct objfile *objfile)
1175 {
1176   int new_size;
1177   if (listp->size == 0)
1178     {
1179       new_size = 255;
1180       listp->list = (struct partial_symbol **)
1181         xmalloc (new_size * sizeof (struct partial_symbol *));
1182     }
1183   else
1184     {
1185       new_size = listp->size * 2;
1186       listp->list = (struct partial_symbol **)
1187         xrealloc ((char *) listp->list,
1188                   new_size * sizeof (struct partial_symbol *));
1189     }
1190   /* Next assumes we only went one over.  Should be good if
1191      program works correctly */
1192   listp->next = listp->list + listp->size;
1193   listp->size = new_size;
1194 }
1195
1196
1197 /* Do early runtime initializations. */
1198 void
1199 _initialize_symmisc (void)
1200 {
1201   std_in = stdin;
1202   std_out = stdout;
1203   std_err = stderr;
1204 }