gdb/symmisc.c

   1 /* Do various things to symbol tables (other than lookup), for GDB.
   2
   3    Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
   4    1995, 1996, 1997, 1998, 1999, 2000, 2002 Free Software Foundation,
   5    Inc.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA.  */
  23
  24 #include "defs.h"
  25 #include "symtab.h"
  26 #include "gdbtypes.h"
  27 #include "bfd.h"
  28 #include "symfile.h"
  29 #include "objfiles.h"
  30 #include "breakpoint.h"
  31 #include "command.h"
  32 #include "gdb_obstack.h"
  33 #include "language.h"
  34 #include "bcache.h"
  35 #include "block.h"
  36
  37 #include "gdb_string.h"
  38 #include <readline/readline.h>
  39
  40 #ifndef DEV_TTY
  41 #define DEV_TTY "/dev/tty"
  42 #endif
  43
  44 /* Unfortunately for debugging, stderr is usually a macro.  This is painful
  45    when calling functions that take FILE *'s from the debugger.
  46    So we make a variable which has the same value and which is accessible when
  47    debugging GDB with itself.  Because stdin et al need not be constants,
  48    we initialize them in the _initialize_symmisc function at the bottom
  49    of the file.  */
  50 FILE *std_in;
  51 FILE *std_out;
  52 FILE *std_err;
  53
  54 /* Prototypes for local functions */
  55
  56 static void dump_symtab (struct objfile *, struct symtab *,
  57                          struct ui_file *);
  58
  59 static void dump_psymtab (struct objfile *, struct partial_symtab *,
  60                           struct ui_file *);
  61
  62 static void dump_msymbols (struct objfile *, struct ui_file *);
  63
  64 static void dump_objfile (struct objfile *);
  65
  66 static int block_depth (struct block *);
  67
  68 static void print_partial_symbols (struct partial_symbol **, int,
  69                                    char *, struct ui_file *);
  70
  71 static void free_symtab_block (struct objfile *, struct block *);
  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
  84 static void free_symtab_block (struct objfile *, struct block *);
  85 \f
  86
  87 /* Free a struct block <- B and all the symbols defined in that block.  */
  88
  89 static void
  90 free_symtab_block (struct objfile *objfile, struct block *b)
  91 {
  92   register int i, n;
  93   struct symbol *sym, *next_sym;
  94
  95   n = BLOCK_BUCKETS (b);
  96   for (i = 0; i < n; i++)
  97     {
  98       for (sym = BLOCK_BUCKET (b, i); sym; sym = next_sym)
  99         {
 100           next_sym = sym->hash_next;
 101           xmfree (objfile->md, SYMBOL_NAME (sym));
 102           xmfree (objfile->md, sym);
 103         }
 104     }
 105   xmfree (objfile->md, b);
 106 }
 107
 108 /* Free all the storage associated with the struct symtab <- S.
 109    Note that some symtabs have contents malloc'ed structure by structure,
 110    while some have contents that all live inside one big block of memory,
 111    and some share the contents of another symbol table and so you should
 112    not free the contents on their behalf (except sometimes the linetable,
 113    which maybe per symtab even when the rest is not).
 114    It is s->free_code that says which alternative to use.  */
 115
 116 void
 117 free_symtab (register struct symtab *s)
 118 {
 119   register int i, n;
 120   register struct blockvector *bv;
 121
 122   switch (s->free_code)
 123     {
 124     case free_nothing:
 125       /* All the contents are part of a big block of memory (an obstack),
 126          and some other symtab is in charge of freeing that block.
 127          Therefore, do nothing.  */
 128       break;
 129
 130     case free_contents:
 131       /* Here all the contents were malloc'ed structure by structure
 132          and must be freed that way.  */
 133       /* First free the blocks (and their symbols.  */
 134       bv = BLOCKVECTOR (s);
 135       n = BLOCKVECTOR_NBLOCKS (bv);
 136       for (i = 0; i < n; i++)
 137         free_symtab_block (s->objfile, BLOCKVECTOR_BLOCK (bv, i));
 138       /* Free the blockvector itself.  */
 139       xmfree (s->objfile->md, bv);
 140       /* Also free the linetable.  */
 141
 142     case free_linetable:
 143       /* Everything will be freed either by our `free_ptr'
 144          or by some other symtab, except for our linetable.
 145          Free that now.  */
 146       if (LINETABLE (s))
 147         xmfree (s->objfile->md, LINETABLE (s));
 148       break;
 149     }
 150
 151   /* If there is a single block of memory to free, free it.  */
 152   if (s->free_ptr != NULL)
 153     xmfree (s->objfile->md, s->free_ptr);
 154
 155   /* Free source-related stuff */
 156   if (s->line_charpos != NULL)
 157     xmfree (s->objfile->md, s->line_charpos);
 158   if (s->fullname != NULL)
 159     xmfree (s->objfile->md, s->fullname);
 160   if (s->debugformat != NULL)
 161     xmfree (s->objfile->md, s->debugformat);
 162   xmfree (s->objfile->md, s);
 163 }
 164
 165 void
 166 print_symbol_bcache_statistics (void)
 167 {
 168   struct objfile *objfile;
 169
 170   immediate_quit++;
 171   ALL_OBJFILES (objfile)
 172   {
 173     printf_filtered ("Byte cache statistics for '%s':\n", objfile->name);
 174     print_bcache_statistics (objfile->psymbol_cache, "partial symbol cache");
 175   }
 176   immediate_quit--;
 177 }
 178
 179 void
 180 print_objfile_statistics (void)
 181 {
 182   struct objfile *objfile;
 183   struct symtab *s;
 184   struct partial_symtab *ps;
 185   int i, linetables, blockvectors;
 186
 187   immediate_quit++;
 188   ALL_OBJFILES (objfile)
 189   {
 190     printf_filtered ("Statistics for '%s':\n", objfile->name);
 191     if (OBJSTAT (objfile, n_stabs) > 0)
 192       printf_filtered ("  Number of \"stab\" symbols read: %d\n",
 193                        OBJSTAT (objfile, n_stabs));
 194     if (OBJSTAT (objfile, n_minsyms) > 0)
 195       printf_filtered ("  Number of \"minimal\" symbols read: %d\n",
 196                        OBJSTAT (objfile, n_minsyms));
 197     if (OBJSTAT (objfile, n_psyms) > 0)
 198       printf_filtered ("  Number of \"partial\" symbols read: %d\n",
 199                        OBJSTAT (objfile, n_psyms));
 200     if (OBJSTAT (objfile, n_syms) > 0)
 201       printf_filtered ("  Number of \"full\" symbols read: %d\n",
 202                        OBJSTAT (objfile, n_syms));
 203     if (OBJSTAT (objfile, n_types) > 0)
 204       printf_filtered ("  Number of \"types\" defined: %d\n",
 205                        OBJSTAT (objfile, n_types));
 206     i = 0;
 207     ALL_OBJFILE_PSYMTABS (objfile, ps)
 208       {
 209         if (ps->readin == 0)
 210           i++;
 211       }
 212     printf_filtered ("  Number of psym tables (not yet expanded): %d\n", i);
 213     i = linetables = blockvectors = 0;
 214     ALL_OBJFILE_SYMTABS (objfile, s)
 215       {
 216         i++;
 217         if (s->linetable != NULL)
 218           linetables++;
 219         if (s->primary == 1)
 220           blockvectors++;
 221       }
 222     printf_filtered ("  Number of symbol tables: %d\n", i);
 223     printf_filtered ("  Number of symbol tables with line tables: %d\n",
 224                      linetables);
 225     printf_filtered ("  Number of symbol tables with blockvectors: %d\n",
 226                      blockvectors);
 227
 228     if (OBJSTAT (objfile, sz_strtab) > 0)
 229       printf_filtered ("  Space used by a.out string tables: %d\n",
 230                        OBJSTAT (objfile, sz_strtab));
 231     printf_filtered ("  Total memory used for psymbol obstack: %d\n",
 232                      obstack_memory_used (&objfile->psymbol_obstack));
 233     printf_filtered ("  Total memory used for psymbol cache: %d\n",
 234                      bcache_memory_used (objfile->psymbol_cache));
 235     printf_filtered ("  Total memory used for macro cache: %d\n",
 236                      bcache_memory_used (objfile->macro_cache));
 237     printf_filtered ("  Total memory used for symbol obstack: %d\n",
 238                      obstack_memory_used (&objfile->symbol_obstack));
 239     printf_filtered ("  Total memory used for type obstack: %d\n",
 240                      obstack_memory_used (&objfile->type_obstack));
 241   }
 242   immediate_quit--;
 243 }
 244
 245 static void
 246 dump_objfile (struct objfile *objfile)
 247 {
 248   struct symtab *symtab;
 249   struct partial_symtab *psymtab;
 250
 251   printf_filtered ("\nObject file %s:  ", objfile->name);
 252   printf_filtered ("Objfile at ");
 253   gdb_print_host_address (objfile, gdb_stdout);
 254   printf_filtered (", bfd at ");
 255   gdb_print_host_address (objfile->obfd, gdb_stdout);
 256   printf_filtered (", %d minsyms\n\n",
 257                    objfile->minimal_symbol_count);
 258
 259   if (objfile->psymtabs)
 260     {
 261       printf_filtered ("Psymtabs:\n");
 262       for (psymtab = objfile->psymtabs;
 263            psymtab != NULL;
 264            psymtab = psymtab->next)
 265         {
 266           printf_filtered ("%s at ",
 267                            psymtab->filename);
 268           gdb_print_host_address (psymtab, gdb_stdout);
 269           printf_filtered (", ");
 270           if (psymtab->objfile != objfile)
 271             {
 272               printf_filtered ("NOT ON CHAIN!  ");
 273             }
 274           wrap_here ("  ");
 275         }
 276       printf_filtered ("\n\n");
 277     }
 278
 279   if (objfile->symtabs)
 280     {
 281       printf_filtered ("Symtabs:\n");
 282       for (symtab = objfile->symtabs;
 283            symtab != NULL;
 284            symtab = symtab->next)
 285         {
 286           printf_filtered ("%s at ", symtab->filename);
 287           gdb_print_host_address (symtab, gdb_stdout);
 288           printf_filtered (", ");
 289           if (symtab->objfile != objfile)
 290             {
 291               printf_filtered ("NOT ON CHAIN!  ");
 292             }
 293           wrap_here ("  ");
 294         }
 295       printf_filtered ("\n\n");
 296     }
 297 }
 298
 299 /* Print minimal symbols from this objfile.  */
 300
 301 static void
 302 dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
 303 {
 304   struct minimal_symbol *msymbol;
 305   int index;
 306   char ms_type;
 307
 308   fprintf_filtered (outfile, "\nObject file %s:\n\n", objfile->name);
 309   if (objfile->minimal_symbol_count == 0)
 310     {
 311       fprintf_filtered (outfile, "No minimal symbols found.\n");
 312       return;
 313     }
 314   for (index = 0, msymbol = objfile->msymbols;
 315        SYMBOL_NAME (msymbol) != NULL; msymbol++, index++)
 316     {
 317       switch (msymbol->type)
 318         {
 319         case mst_unknown:
 320           ms_type = 'u';
 321           break;
 322         case mst_text:
 323           ms_type = 'T';
 324           break;
 325         case mst_solib_trampoline:
 326           ms_type = 'S';
 327           break;
 328         case mst_data:
 329           ms_type = 'D';
 330           break;
 331         case mst_bss:
 332           ms_type = 'B';
 333           break;
 334         case mst_abs:
 335           ms_type = 'A';
 336           break;
 337         case mst_file_text:
 338           ms_type = 't';
 339           break;
 340         case mst_file_data:
 341           ms_type = 'd';
 342           break;
 343         case mst_file_bss:
 344           ms_type = 'b';
 345           break;
 346         default:
 347           ms_type = '?';
 348           break;
 349         }
 350       fprintf_filtered (outfile, "[%2d] %c ", index, ms_type);
 351       print_address_numeric (SYMBOL_VALUE_ADDRESS (msymbol), 1, outfile);
 352       fprintf_filtered (outfile, " %s", SYMBOL_NAME (msymbol));
 353       if (SYMBOL_BFD_SECTION (msymbol))
 354         fprintf_filtered (outfile, " section %s",
 355                           bfd_section_name (objfile->obfd,
 356                                             SYMBOL_BFD_SECTION (msymbol)));
 357       if (SYMBOL_DEMANGLED_NAME (msymbol) != NULL)
 358         {
 359           fprintf_filtered (outfile, "  %s", SYMBOL_DEMANGLED_NAME (msymbol));
 360         }
 361 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
 362       if (msymbol->filename)
 363         fprintf_filtered (outfile, "  %s", msymbol->filename);
 364 #endif
 365       fputs_filtered ("\n", outfile);
 366     }
 367   if (objfile->minimal_symbol_count != index)
 368     {
 369       warning ("internal error:  minimal symbol count %d != %d",
 370                objfile->minimal_symbol_count, index);
 371     }
 372   fprintf_filtered (outfile, "\n");
 373 }
 374
 375 static void
 376 dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab,
 377               struct ui_file *outfile)
 378 {
 379   int i;
 380
 381   fprintf_filtered (outfile, "\nPartial symtab for source file %s ",
 382                     psymtab->filename);
 383   fprintf_filtered (outfile, "(object ");
 384   gdb_print_host_address (psymtab, outfile);
 385   fprintf_filtered (outfile, ")\n\n");
 386   fprintf_unfiltered (outfile, "  Read from object file %s (",
 387                       objfile->name);
 388   gdb_print_host_address (objfile, outfile);
 389   fprintf_unfiltered (outfile, ")\n");
 390
 391   if (psymtab->readin)
 392     {
 393       fprintf_filtered (outfile,
 394                         "  Full symtab was read (at ");
 395       gdb_print_host_address (psymtab->symtab, outfile);
 396       fprintf_filtered (outfile, " by function at ");
 397       gdb_print_host_address (psymtab->read_symtab, outfile);
 398       fprintf_filtered (outfile, ")\n");
 399     }
 400
 401   fprintf_filtered (outfile, "  Relocate symbols by ");
 402   for (i = 0; i < psymtab->objfile->num_sections; ++i)
 403     {
 404       if (i != 0)
 405         fprintf_filtered (outfile, ", ");
 406       wrap_here ("    ");
 407       print_address_numeric (ANOFFSET (psymtab->section_offsets, i),
 408                              1,
 409                              outfile);
 410     }
 411   fprintf_filtered (outfile, "\n");
 412
 413   fprintf_filtered (outfile, "  Symbols cover text addresses ");
 414   print_address_numeric (psymtab->textlow, 1, outfile);
 415   fprintf_filtered (outfile, "-");
 416   print_address_numeric (psymtab->texthigh, 1, outfile);
 417   fprintf_filtered (outfile, "\n");
 418   fprintf_filtered (outfile, "  Depends on %d other partial symtabs.\n",
 419                     psymtab->number_of_dependencies);
 420   for (i = 0; i < psymtab->number_of_dependencies; i++)
 421     {
 422       fprintf_filtered (outfile, "    %d ", i);
 423       gdb_print_host_address (psymtab->dependencies[i], outfile);
 424       fprintf_filtered (outfile, " %s\n",
 425                         psymtab->dependencies[i]->filename);
 426     }
 427   if (psymtab->n_global_syms > 0)
 428     {
 429       print_partial_symbols (objfile->global_psymbols.list
 430                              + psymtab->globals_offset,
 431                              psymtab->n_global_syms, "Global", outfile);
 432     }
 433   if (psymtab->n_static_syms > 0)
 434     {
 435       print_partial_symbols (objfile->static_psymbols.list
 436                              + psymtab->statics_offset,
 437                              psymtab->n_static_syms, "Static", outfile);
 438     }
 439   fprintf_filtered (outfile, "\n");
 440 }
 441
 442 static void
 443 dump_symtab (struct objfile *objfile, struct symtab *symtab,
 444              struct ui_file *outfile)
 445 {
 446   register int i, j;
 447   int len, blen;
 448   register struct linetable *l;
 449   struct blockvector *bv;
 450   struct symbol *sym;
 451   register struct block *b;
 452   int depth;
 453
 454   fprintf_filtered (outfile, "\nSymtab for file %s\n", symtab->filename);
 455   if (symtab->dirname)
 456     fprintf_filtered (outfile, "Compilation directory is %s\n",
 457                       symtab->dirname);
 458   fprintf_filtered (outfile, "Read from object file %s (", objfile->name);
 459   gdb_print_host_address (objfile, outfile);
 460   fprintf_filtered (outfile, ")\n");
 461   fprintf_filtered (outfile, "Language: %s\n", language_str (symtab->language));
 462
 463   /* First print the line table.  */
 464   l = LINETABLE (symtab);
 465   if (l)
 466     {
 467       fprintf_filtered (outfile, "\nLine table:\n\n");
 468       len = l->nitems;
 469       for (i = 0; i < len; i++)
 470         {
 471           fprintf_filtered (outfile, " line %d at ", l->item[i].line);
 472           print_address_numeric (l->item[i].pc, 1, outfile);
 473           fprintf_filtered (outfile, "\n");
 474         }
 475     }
 476   /* Now print the block info, but only for primary symtabs since we will
 477      print lots of duplicate info otherwise. */
 478   if (symtab->primary)
 479     {
 480       fprintf_filtered (outfile, "\nBlockvector:\n\n");
 481       bv = BLOCKVECTOR (symtab);
 482       len = BLOCKVECTOR_NBLOCKS (bv);
 483       for (i = 0; i < len; i++)
 484         {
 485           b = BLOCKVECTOR_BLOCK (bv, i);
 486           depth = block_depth (b) * 2;
 487           print_spaces (depth, outfile);
 488           fprintf_filtered (outfile, "block #%03d, object at ", i);
 489           gdb_print_host_address (b, outfile);
 490           if (BLOCK_SUPERBLOCK (b))
 491             {
 492               fprintf_filtered (outfile, " under ");
 493               gdb_print_host_address (BLOCK_SUPERBLOCK (b), outfile);
 494             }
 495           /* drow/2002-07-10: We could save the total symbols count
 496              even if we're using a hashtable, but nothing else but this message
 497              wants it.  */
 498           blen = BLOCK_BUCKETS (b);
 499           if (BLOCK_HASHTABLE (b))
 500             fprintf_filtered (outfile, ", %d buckets in ", blen);
 501           else
 502             fprintf_filtered (outfile, ", %d syms in ", blen);
 503           print_address_numeric (BLOCK_START (b), 1, outfile);
 504           fprintf_filtered (outfile, "..");
 505           print_address_numeric (BLOCK_END (b), 1, outfile);
 506           if (BLOCK_FUNCTION (b))
 507             {
 508               fprintf_filtered (outfile, ", function %s", SYMBOL_NAME (BLOCK_FUNCTION (b)));
 509               if (SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)) != NULL)
 510                 {
 511                   fprintf_filtered (outfile, ", %s",
 512                                 SYMBOL_DEMANGLED_NAME (BLOCK_FUNCTION (b)));
 513                 }
 514             }
 515           if (BLOCK_GCC_COMPILED (b))
 516             fprintf_filtered (outfile, ", compiled with gcc%d", BLOCK_GCC_COMPILED (b));
 517           fprintf_filtered (outfile, "\n");
 518           /* Now print each symbol in this block (in no particular order, if
 519              we're using a hashtable).  */
 520           ALL_BLOCK_SYMBOLS (b, j, sym)
 521             {
 522               struct print_symbol_args s;
 523               s.symbol = sym;
 524               s.depth = depth + 1;
 525               s.outfile = outfile;
 526               catch_errors (print_symbol, &s, "Error printing symbol:\n",
 527                             RETURN_MASK_ALL);
 528             }
 529         }
 530       fprintf_filtered (outfile, "\n");
 531     }
 532   else
 533     {
 534       fprintf_filtered (outfile, "\nBlockvector same as previous symtab\n\n");
 535     }
 536 }
 537
 538 void
 539 maintenance_print_symbols (char *args, int from_tty)
 540 {
 541   char **argv;
 542   struct ui_file *outfile;
 543   struct cleanup *cleanups;
 544   char *symname = NULL;
 545   char *filename = DEV_TTY;
 546   struct objfile *objfile;
 547   struct symtab *s;
 548
 549   dont_repeat ();
 550
 551   if (args == NULL)
 552     {
 553       error ("\
 554 Arguments missing: an output file name and an optional symbol file name");
 555     }
 556   else if ((argv = buildargv (args)) == NULL)
 557     {
 558       nomem (0);
 559     }
 560   cleanups = make_cleanup_freeargv (argv);
 561
 562   if (argv[0] != NULL)
 563     {
 564       filename = argv[0];
 565       /* If a second arg is supplied, it is a source file name to match on */
 566       if (argv[1] != NULL)
 567         {
 568           symname = argv[1];
 569         }
 570     }
 571
 572   filename = tilde_expand (filename);
 573   make_cleanup (xfree, filename);
 574
 575   outfile = gdb_fopen (filename, FOPEN_WT);
 576   if (outfile == 0)
 577     perror_with_name (filename);
 578   make_cleanup_ui_file_delete (outfile);
 579
 580   immediate_quit++;
 581   ALL_SYMTABS (objfile, s)
 582     if (symname == NULL || (STREQ (symname, s->filename)))
 583     dump_symtab (objfile, s, outfile);
 584   immediate_quit--;
 585   do_cleanups (cleanups);
 586 }
 587
 588 /* Print symbol ARGS->SYMBOL on ARGS->OUTFILE.  ARGS->DEPTH says how
 589    far to indent.  ARGS is really a struct print_symbol_args *, but is
 590    declared as char * to get it past catch_errors.  Returns 0 for error,
 591    1 for success.  */
 592
 593 static int
 594 print_symbol (void *args)
 595 {
 596   struct symbol *symbol = ((struct print_symbol_args *) args)->symbol;
 597   int depth = ((struct print_symbol_args *) args)->depth;
 598   struct ui_file *outfile = ((struct print_symbol_args *) args)->outfile;
 599
 600   print_spaces (depth, outfile);
 601   if (SYMBOL_NAMESPACE (symbol) == LABEL_NAMESPACE)
 602     {
 603       fprintf_filtered (outfile, "label %s at ", SYMBOL_SOURCE_NAME (symbol));
 604       print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 605       if (SYMBOL_BFD_SECTION (symbol))
 606         fprintf_filtered (outfile, " section %s\n",
 607                        bfd_section_name (SYMBOL_BFD_SECTION (symbol)->owner,
 608                                          SYMBOL_BFD_SECTION (symbol)));
 609       else
 610         fprintf_filtered (outfile, "\n");
 611       return 1;
 612     }
 613   if (SYMBOL_NAMESPACE (symbol) == STRUCT_NAMESPACE)
 614     {
 615       if (TYPE_TAG_NAME (SYMBOL_TYPE (symbol)))
 616         {
 617           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 618         }
 619       else
 620         {
 621           fprintf_filtered (outfile, "%s %s = ",
 622                          (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_ENUM
 623                           ? "enum"
 624                      : (TYPE_CODE (SYMBOL_TYPE (symbol)) == TYPE_CODE_STRUCT
 625                         ? "struct" : "union")),
 626                             SYMBOL_NAME (symbol));
 627           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), "", outfile, 1, depth);
 628         }
 629       fprintf_filtered (outfile, ";\n");
 630     }
 631   else
 632     {
 633       if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 634         fprintf_filtered (outfile, "typedef ");
 635       if (SYMBOL_TYPE (symbol))
 636         {
 637           /* Print details of types, except for enums where it's clutter.  */
 638           LA_PRINT_TYPE (SYMBOL_TYPE (symbol), SYMBOL_SOURCE_NAME (symbol),
 639                          outfile,
 640                          TYPE_CODE (SYMBOL_TYPE (symbol)) != TYPE_CODE_ENUM,
 641                          depth);
 642           fprintf_filtered (outfile, "; ");
 643         }
 644       else
 645         fprintf_filtered (outfile, "%s ", SYMBOL_SOURCE_NAME (symbol));
 646
 647       switch (SYMBOL_CLASS (symbol))
 648         {
 649         case LOC_CONST:
 650           fprintf_filtered (outfile, "const %ld (0x%lx)",
 651                             SYMBOL_VALUE (symbol),
 652                             SYMBOL_VALUE (symbol));
 653           break;
 654
 655         case LOC_CONST_BYTES:
 656           {
 657             unsigned i;
 658             struct type *type = check_typedef (SYMBOL_TYPE (symbol));
 659             fprintf_filtered (outfile, "const %u hex bytes:",
 660                               TYPE_LENGTH (type));
 661             for (i = 0; i < TYPE_LENGTH (type); i++)
 662               fprintf_filtered (outfile, " %02x",
 663                                 (unsigned) SYMBOL_VALUE_BYTES (symbol)[i]);
 664           }
 665           break;
 666
 667         case LOC_STATIC:
 668           fprintf_filtered (outfile, "static at ");
 669           print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 670           if (SYMBOL_BFD_SECTION (symbol))
 671             fprintf_filtered (outfile, " section %s",
 672                               bfd_section_name
 673                               (SYMBOL_BFD_SECTION (symbol)->owner,
 674                                SYMBOL_BFD_SECTION (symbol)));
 675           break;
 676
 677         case LOC_INDIRECT:
 678           fprintf_filtered (outfile, "extern global at *(");
 679           print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 680           fprintf_filtered (outfile, "),");
 681           break;
 682
 683         case LOC_REGISTER:
 684           fprintf_filtered (outfile, "register %ld", SYMBOL_VALUE (symbol));
 685           break;
 686
 687         case LOC_ARG:
 688           fprintf_filtered (outfile, "arg at offset 0x%lx",
 689                             SYMBOL_VALUE (symbol));
 690           break;
 691
 692         case LOC_LOCAL_ARG:
 693           fprintf_filtered (outfile, "arg at offset 0x%lx from fp",
 694                             SYMBOL_VALUE (symbol));
 695           break;
 696
 697         case LOC_REF_ARG:
 698           fprintf_filtered (outfile, "reference arg at 0x%lx", SYMBOL_VALUE (symbol));
 699           break;
 700
 701         case LOC_REGPARM:
 702           fprintf_filtered (outfile, "parameter register %ld", SYMBOL_VALUE (symbol));
 703           break;
 704
 705         case LOC_REGPARM_ADDR:
 706           fprintf_filtered (outfile, "address parameter register %ld", SYMBOL_VALUE (symbol));
 707           break;
 708
 709         case LOC_LOCAL:
 710           fprintf_filtered (outfile, "local at offset 0x%lx",
 711                             SYMBOL_VALUE (symbol));
 712           break;
 713
 714         case LOC_BASEREG:
 715           fprintf_filtered (outfile, "local at 0x%lx from register %d",
 716                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 717           break;
 718
 719         case LOC_BASEREG_ARG:
 720           fprintf_filtered (outfile, "arg at 0x%lx from register %d",
 721                             SYMBOL_VALUE (symbol), SYMBOL_BASEREG (symbol));
 722           break;
 723
 724         case LOC_TYPEDEF:
 725           break;
 726
 727         case LOC_LABEL:
 728           fprintf_filtered (outfile, "label at ");
 729           print_address_numeric (SYMBOL_VALUE_ADDRESS (symbol), 1, outfile);
 730           if (SYMBOL_BFD_SECTION (symbol))
 731             fprintf_filtered (outfile, " section %s",
 732                               bfd_section_name
 733                               (SYMBOL_BFD_SECTION (symbol)->owner,
 734                                SYMBOL_BFD_SECTION (symbol)));
 735           break;
 736
 737         case LOC_BLOCK:
 738           fprintf_filtered (outfile, "block object ");
 739           gdb_print_host_address (SYMBOL_BLOCK_VALUE (symbol), outfile);
 740           fprintf_filtered (outfile, ", ");
 741           print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)),
 742                                  1,
 743                                  outfile);
 744           fprintf_filtered (outfile, "..");
 745           print_address_numeric (BLOCK_END (SYMBOL_BLOCK_VALUE (symbol)),
 746                                  1,
 747                                  outfile);
 748           if (SYMBOL_BFD_SECTION (symbol))
 749             fprintf_filtered (outfile, " section %s",
 750                               bfd_section_name
 751                               (SYMBOL_BFD_SECTION (symbol)->owner,
 752                                SYMBOL_BFD_SECTION (symbol)));
 753           break;
 754
 755         case LOC_UNRESOLVED:
 756           fprintf_filtered (outfile, "unresolved");
 757           break;
 758
 759         case LOC_OPTIMIZED_OUT:
 760           fprintf_filtered (outfile, "optimized out");
 761           break;
 762
 763         default:
 764           fprintf_filtered (outfile, "botched symbol class %x",
 765                             SYMBOL_CLASS (symbol));
 766           break;
 767         }
 768     }
 769   fprintf_filtered (outfile, "\n");
 770   return 1;
 771 }
 772
 773 void
 774 maintenance_print_psymbols (char *args, int from_tty)
 775 {
 776   char **argv;
 777   struct ui_file *outfile;
 778   struct cleanup *cleanups;
 779   char *symname = NULL;
 780   char *filename = DEV_TTY;
 781   struct objfile *objfile;
 782   struct partial_symtab *ps;
 783
 784   dont_repeat ();
 785
 786   if (args == NULL)
 787     {
 788       error ("print-psymbols takes an output file name and optional symbol file name");
 789     }
 790   else if ((argv = buildargv (args)) == NULL)
 791     {
 792       nomem (0);
 793     }
 794   cleanups = make_cleanup_freeargv (argv);
 795
 796   if (argv[0] != NULL)
 797     {
 798       filename = argv[0];
 799       /* If a second arg is supplied, it is a source file name to match on */
 800       if (argv[1] != NULL)
 801         {
 802           symname = argv[1];
 803         }
 804     }
 805
 806   filename = tilde_expand (filename);
 807   make_cleanup (xfree, filename);
 808
 809   outfile = gdb_fopen (filename, FOPEN_WT);
 810   if (outfile == 0)
 811     perror_with_name (filename);
 812   make_cleanup_ui_file_delete (outfile);
 813
 814   immediate_quit++;
 815   ALL_PSYMTABS (objfile, ps)
 816     if (symname == NULL || (STREQ (symname, ps->filename)))
 817     dump_psymtab (objfile, ps, outfile);
 818   immediate_quit--;
 819   do_cleanups (cleanups);
 820 }
 821
 822 static void
 823 print_partial_symbols (struct partial_symbol **p, int count, char *what,
 824                        struct ui_file *outfile)
 825 {
 826   fprintf_filtered (outfile, "  %s partial symbols:\n", what);
 827   while (count-- > 0)
 828     {
 829       fprintf_filtered (outfile, "    `%s'", SYMBOL_NAME (*p));
 830       if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
 831         {
 832           fprintf_filtered (outfile, "  `%s'", SYMBOL_DEMANGLED_NAME (*p));
 833         }
 834       fputs_filtered (", ", outfile);
 835       switch (SYMBOL_NAMESPACE (*p))
 836         {
 837         case UNDEF_NAMESPACE:
 838           fputs_filtered ("undefined namespace, ", outfile);
 839           break;
 840         case VAR_NAMESPACE:
 841           /* This is the usual thing -- don't print it */
 842           break;
 843         case STRUCT_NAMESPACE:
 844           fputs_filtered ("struct namespace, ", outfile);
 845           break;
 846         case LABEL_NAMESPACE:
 847           fputs_filtered ("label namespace, ", outfile);
 848           break;
 849         default:
 850           fputs_filtered ("<invalid namespace>, ", outfile);
 851           break;
 852         }
 853       switch (SYMBOL_CLASS (*p))
 854         {
 855         case LOC_UNDEF:
 856           fputs_filtered ("undefined", outfile);
 857           break;
 858         case LOC_CONST:
 859           fputs_filtered ("constant int", outfile);
 860           break;
 861         case LOC_STATIC:
 862           fputs_filtered ("static", outfile);
 863           break;
 864         case LOC_INDIRECT:
 865           fputs_filtered ("extern global", outfile);
 866           break;
 867         case LOC_REGISTER:
 868           fputs_filtered ("register", outfile);
 869           break;
 870         case LOC_ARG:
 871           fputs_filtered ("pass by value", outfile);
 872           break;
 873         case LOC_REF_ARG:
 874           fputs_filtered ("pass by reference", outfile);
 875           break;
 876         case LOC_REGPARM:
 877           fputs_filtered ("register parameter", outfile);
 878           break;
 879         case LOC_REGPARM_ADDR:
 880           fputs_filtered ("register address parameter", outfile);
 881           break;
 882         case LOC_LOCAL:
 883           fputs_filtered ("stack parameter", outfile);
 884           break;
 885         case LOC_TYPEDEF:
 886           fputs_filtered ("type", outfile);
 887           break;
 888         case LOC_LABEL:
 889           fputs_filtered ("label", outfile);
 890           break;
 891         case LOC_BLOCK:
 892           fputs_filtered ("function", outfile);
 893           break;
 894         case LOC_CONST_BYTES:
 895           fputs_filtered ("constant bytes", outfile);
 896           break;
 897         case LOC_LOCAL_ARG:
 898           fputs_filtered ("shuffled arg", outfile);
 899           break;
 900         case LOC_UNRESOLVED:
 901           fputs_filtered ("unresolved", outfile);
 902           break;
 903         case LOC_OPTIMIZED_OUT:
 904           fputs_filtered ("optimized out", outfile);
 905           break;
 906         default:
 907           fputs_filtered ("<invalid location>", outfile);
 908           break;
 909         }
 910       fputs_filtered (", ", outfile);
 911       print_address_numeric (SYMBOL_VALUE_ADDRESS (*p), 1, outfile);
 912       fprintf_filtered (outfile, "\n");
 913       p++;
 914     }
 915 }
 916
 917 void
 918 maintenance_print_msymbols (char *args, int from_tty)
 919 {
 920   char **argv;
 921   struct ui_file *outfile;
 922   struct cleanup *cleanups;
 923   char *filename = DEV_TTY;
 924   char *symname = NULL;
 925   struct objfile *objfile;
 926
 927   dont_repeat ();
 928
 929   if (args == NULL)
 930     {
 931       error ("print-msymbols takes an output file name and optional symbol file name");
 932     }
 933   else if ((argv = buildargv (args)) == NULL)
 934     {
 935       nomem (0);
 936     }
 937   cleanups = make_cleanup_freeargv (argv);
 938
 939   if (argv[0] != NULL)
 940     {
 941       filename = argv[0];
 942       /* If a second arg is supplied, it is a source file name to match on */
 943       if (argv[1] != NULL)
 944         {
 945           symname = argv[1];
 946         }
 947     }
 948
 949   filename = tilde_expand (filename);
 950   make_cleanup (xfree, filename);
 951
 952   outfile = gdb_fopen (filename, FOPEN_WT);
 953   if (outfile == 0)
 954     perror_with_name (filename);
 955   make_cleanup_ui_file_delete (outfile);
 956
 957   immediate_quit++;
 958   ALL_OBJFILES (objfile)
 959     if (symname == NULL || (STREQ (symname, objfile->name)))
 960     dump_msymbols (objfile, outfile);
 961   immediate_quit--;
 962   fprintf_filtered (outfile, "\n\n");
 963   do_cleanups (cleanups);
 964 }
 965
 966 void
 967 maintenance_print_objfiles (char *ignore, int from_tty)
 968 {
 969   struct objfile *objfile;
 970
 971   dont_repeat ();
 972
 973   immediate_quit++;
 974   ALL_OBJFILES (objfile)
 975     dump_objfile (objfile);
 976   immediate_quit--;
 977 }
 978
 979 /* Check consistency of psymtabs and symtabs.  */
 980
 981 void
 982 maintenance_check_symtabs (char *ignore, int from_tty)
 983 {
 984   register struct symbol *sym;
 985   register struct partial_symbol **psym;
 986   register struct symtab *s = NULL;
 987   register struct partial_symtab *ps;
 988   struct blockvector *bv;
 989   register struct objfile *objfile;
 990   register struct block *b;
 991   int length;
 992
 993   ALL_PSYMTABS (objfile, ps)
 994   {
 995     s = PSYMTAB_TO_SYMTAB (ps);
 996     if (s == NULL)
 997       continue;
 998     bv = BLOCKVECTOR (s);
 999     b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
1000     psym = ps->objfile->static_psymbols.list + ps->statics_offset;
1001     length = ps->n_static_syms;
1002     while (length--)
1003       {
1004         sym = lookup_block_symbol (b, SYMBOL_NAME (*psym),
1005                                    NULL, SYMBOL_NAMESPACE (*psym));
1006         if (!sym)
1007           {
1008             printf_filtered ("Static symbol `");
1009             puts_filtered (SYMBOL_NAME (*psym));
1010             printf_filtered ("' only found in ");
1011             puts_filtered (ps->filename);
1012             printf_filtered (" psymtab\n");
1013           }
1014         psym++;
1015       }
1016     b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
1017     psym = ps->objfile->global_psymbols.list + ps->globals_offset;
1018     length = ps->n_global_syms;
1019     while (length--)
1020       {
1021         sym = lookup_block_symbol (b, SYMBOL_NAME (*psym),
1022                                    NULL, SYMBOL_NAMESPACE (*psym));
1023         if (!sym)
1024           {
1025             printf_filtered ("Global symbol `");
1026             puts_filtered (SYMBOL_NAME (*psym));
1027             printf_filtered ("' only found in ");
1028             puts_filtered (ps->filename);
1029             printf_filtered (" psymtab\n");
1030           }
1031         psym++;
1032       }
1033     if (ps->texthigh < ps->textlow)
1034       {
1035         printf_filtered ("Psymtab ");
1036         puts_filtered (ps->filename);
1037         printf_filtered (" covers bad range ");
1038         print_address_numeric (ps->textlow, 1, gdb_stdout);
1039         printf_filtered (" - ");
1040         print_address_numeric (ps->texthigh, 1, gdb_stdout);
1041         printf_filtered ("\n");
1042         continue;
1043       }
1044     if (ps->texthigh == 0)
1045       continue;
1046     if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
1047       {
1048         printf_filtered ("Psymtab ");
1049         puts_filtered (ps->filename);
1050         printf_filtered (" covers ");
1051         print_address_numeric (ps->textlow, 1, gdb_stdout);
1052         printf_filtered (" - ");
1053         print_address_numeric (ps->texthigh, 1, gdb_stdout);
1054         printf_filtered (" but symtab covers only ");
1055         print_address_numeric (BLOCK_START (b), 1, gdb_stdout);
1056         printf_filtered (" - ");
1057         print_address_numeric (BLOCK_END (b), 1, gdb_stdout);
1058         printf_filtered ("\n");
1059       }
1060   }
1061 }
1062 \f
1063
1064 /* Return the nexting depth of a block within other blocks in its symtab.  */
1065
1066 static int
1067 block_depth (struct block *block)
1068 {
1069   register int i = 0;
1070   while ((block = BLOCK_SUPERBLOCK (block)) != NULL)
1071     {
1072       i++;
1073     }
1074   return i;
1075 }
1076 \f
1077
1078 /* Increase the space allocated for LISTP, which is probably
1079    global_psymbols or static_psymbols. This space will eventually
1080    be freed in free_objfile().  */
1081
1082 void
1083 extend_psymbol_list (register struct psymbol_allocation_list *listp,
1084                      struct objfile *objfile)
1085 {
1086   int new_size;
1087   if (listp->size == 0)
1088     {
1089       new_size = 255;
1090       listp->list = (struct partial_symbol **)
1091         xmmalloc (objfile->md, new_size * sizeof (struct partial_symbol *));
1092     }
1093   else
1094     {
1095       new_size = listp->size * 2;
1096       listp->list = (struct partial_symbol **)
1097         xmrealloc (objfile->md, (char *) listp->list,
1098                    new_size * sizeof (struct partial_symbol *));
1099     }
1100   /* Next assumes we only went one over.  Should be good if
1101      program works correctly */
1102   listp->next = listp->list + listp->size;
1103   listp->size = new_size;
1104 }
1105
1106
1107 /* Do early runtime initializations. */
1108 void
1109 _initialize_symmisc (void)
1110 {
1111   std_in = stdin;
1112   std_out = stdout;
1113   std_err = stderr;
1114 }