binutils/size.c

   1 /* size.c -- report size of various sections of an executable file.
   2    Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   3    2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
   4
   5    This file is part of GNU Binutils.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21 \f
  22 /* Extensions/incompatibilities:
  23    o - BSD output has filenames at the end.
  24    o - BSD output can appear in different radicies.
  25    o - SysV output has less redundant whitespace.  Filename comes at end.
  26    o - SysV output doesn't show VMA which is always the same as the PMA.
  27    o - We also handle core files.
  28    o - We also handle archives.
  29    If you write shell scripts which manipulate this info then you may be
  30    out of luck; there's no --compatibility or --pedantic option.  */
  31
  32 #include "sysdep.h"
  33 #include "bfd.h"
  34 #include "libiberty.h"
  35 #include "getopt.h"
  36 #include "bucomm.h"
  37
  38 #ifndef BSD_DEFAULT
  39 #define BSD_DEFAULT 1
  40 #endif
  41
  42 /* Program options.  */
  43
  44 static enum
  45   {
  46     decimal, octal, hex
  47   }
  48 radix = decimal;
  49
  50 /* 0 means use AT&T-style output.  */
  51 static int berkeley_format = BSD_DEFAULT;
  52
  53 static int show_version = 0;
  54 static int show_help = 0;
  55 static int show_totals = 0;
  56 static int show_common = 0;
  57
  58 static bfd_size_type common_size;
  59 static bfd_size_type total_bsssize;
  60 static bfd_size_type total_datasize;
  61 static bfd_size_type total_textsize;
  62
  63 /* Program exit status.  */
  64 static int return_code = 0;
  65
  66 static char *target = NULL;
  67
  68 /* Forward declarations.  */
  69
  70 static void display_file (char *);
  71 static void rprint_number (int, bfd_size_type);
  72 static void print_sizes (bfd * file);
  73 \f
  74 static void
  75 usage (FILE *stream, int status)
  76 {
  77   fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
  78   fprintf (stream, _(" Displays the sizes of sections inside binary files\n"));
  79   fprintf (stream, _(" If no input file(s) are specified, a.out is assumed\n"));
  80   fprintf (stream, _(" The options are:\n\
  81   -A|-B     --format={sysv|berkeley}  Select output style (default is %s)\n\
  82   -o|-d|-x  --radix={8|10|16}         Display numbers in octal, decimal or hex\n\
  83   -t        --totals                  Display the total sizes (Berkeley only)\n\
  84             --common                  Display total size for *COM* syms\n\
  85             --target=<bfdname>        Set the binary file format\n\
  86             @<file>                   Read options from <file>\n\
  87   -h        --help                    Display this information\n\
  88   -v        --version                 Display the program's version\n\
  89 \n"),
  90 #if BSD_DEFAULT
  91   "berkeley"
  92 #else
  93   "sysv"
  94 #endif
  95 );
  96   list_supported_targets (program_name, stream);
  97   if (REPORT_BUGS_TO[0] && status == 0)
  98     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
  99   exit (status);
 100 }
 101
 102 #define OPTION_FORMAT (200)
 103 #define OPTION_RADIX (OPTION_FORMAT + 1)
 104 #define OPTION_TARGET (OPTION_RADIX + 1)
 105
 106 static struct option long_options[] =
 107 {
 108   {"common", no_argument, &show_common, 1},
 109   {"format", required_argument, 0, OPTION_FORMAT},
 110   {"radix", required_argument, 0, OPTION_RADIX},
 111   {"target", required_argument, 0, OPTION_TARGET},
 112   {"totals", no_argument, &show_totals, 1},
 113   {"version", no_argument, &show_version, 1},
 114   {"help", no_argument, &show_help, 1},
 115   {0, no_argument, 0, 0}
 116 };
 117
 118 int main (int, char **);
 119
 120 int
 121 main (int argc, char **argv)
 122 {
 123   int temp;
 124   int c;
 125
 126 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
 127   setlocale (LC_MESSAGES, "");
 128 #endif
 129 #if defined (HAVE_SETLOCALE)
 130   setlocale (LC_CTYPE, "");
 131 #endif
 132   bindtextdomain (PACKAGE, LOCALEDIR);
 133   textdomain (PACKAGE);
 134
 135   program_name = *argv;
 136   xmalloc_set_program_name (program_name);
 137
 138   expandargv (&argc, &argv);
 139
 140   bfd_init ();
 141   set_default_bfd_target ();
 142
 143   while ((c = getopt_long (argc, argv, "ABHhVvdfotx", long_options,
 144                            (int *) 0)) != EOF)
 145     switch (c)
 146       {
 147       case OPTION_FORMAT:
 148         switch (*optarg)
 149           {
 150           case 'B':
 151           case 'b':
 152             berkeley_format = 1;
 153             break;
 154           case 'S':
 155           case 's':
 156             berkeley_format = 0;
 157             break;
 158           default:
 159             non_fatal (_("invalid argument to --format: %s"), optarg);
 160             usage (stderr, 1);
 161           }
 162         break;
 163
 164       case OPTION_TARGET:
 165         target = optarg;
 166         break;
 167
 168       case OPTION_RADIX:
 169 #ifdef ANSI_LIBRARIES
 170         temp = strtol (optarg, NULL, 10);
 171 #else
 172         temp = atol (optarg);
 173 #endif
 174         switch (temp)
 175           {
 176           case 10:
 177             radix = decimal;
 178             break;
 179           case 8:
 180             radix = octal;
 181             break;
 182           case 16:
 183             radix = hex;
 184             break;
 185           default:
 186             non_fatal (_("Invalid radix: %s\n"), optarg);
 187             usage (stderr, 1);
 188           }
 189         break;
 190
 191       case 'A':
 192         berkeley_format = 0;
 193         break;
 194       case 'B':
 195         berkeley_format = 1;
 196         break;
 197       case 'v':
 198       case 'V':
 199         show_version = 1;
 200         break;
 201       case 'd':
 202         radix = decimal;
 203         break;
 204       case 'x':
 205         radix = hex;
 206         break;
 207       case 'o':
 208         radix = octal;
 209         break;
 210       case 't':
 211         show_totals = 1;
 212         break;
 213       case 'f': /* FIXME : For sysv68, `-f' means `full format', i.e.
 214                    `[fname:] M(.text) + N(.data) + O(.bss) + P(.comment) = Q'
 215                    where `fname: ' appears only if there are >= 2 input files,
 216                    and M, N, O, P, Q are expressed in decimal by default,
 217                    hexa or octal if requested by `-x' or `-o'.
 218                    Just to make things interesting, Solaris also accepts -f,
 219                    which prints out the size of each allocatable section, the
 220                    name of the section, and the total of the section sizes.  */
 221                 /* For the moment, accept `-f' silently, and ignore it.  */
 222         break;
 223       case 0:
 224         break;
 225       case 'h':
 226       case 'H':
 227       case '?':
 228         usage (stderr, 1);
 229       }
 230
 231   if (show_version)
 232     print_version ("size");
 233   if (show_help)
 234     usage (stdout, 0);
 235
 236   if (optind == argc)
 237     display_file ("a.out");
 238   else
 239     for (; optind < argc;)
 240       display_file (argv[optind++]);
 241
 242   if (show_totals && berkeley_format)
 243     {
 244       bfd_size_type total = total_textsize + total_datasize + total_bsssize;
 245
 246       rprint_number (7, total_textsize);
 247       putchar('\t');
 248       rprint_number (7, total_datasize);
 249       putchar('\t');
 250       rprint_number (7, total_bsssize);
 251       printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 252               (unsigned long) total, (unsigned long) total);
 253       fputs ("(TOTALS)\n", stdout);
 254     }
 255
 256   return return_code;
 257 }
 258 \f
 259 /* Total size required for common symbols in ABFD.  */
 260
 261 static void
 262 calculate_common_size (bfd *abfd)
 263 {
 264   asymbol **syms = NULL;
 265   long storage, symcount;
 266
 267   common_size = 0;
 268   if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC | HAS_SYMS)) != HAS_SYMS)
 269     return;
 270
 271   storage = bfd_get_symtab_upper_bound (abfd);
 272   if (storage < 0)
 273     bfd_fatal (bfd_get_filename (abfd));
 274   if (storage)
 275     syms = xmalloc (storage);
 276
 277   symcount = bfd_canonicalize_symtab (abfd, syms);
 278   if (symcount < 0)
 279     bfd_fatal (bfd_get_filename (abfd));
 280
 281   while (--symcount >= 0)
 282     {
 283       asymbol *sym = syms[symcount];
 284
 285       if (bfd_is_com_section (sym->section)
 286           && (sym->flags & BSF_SECTION_SYM) == 0)
 287         common_size += sym->value;
 288     }
 289   free (syms);
 290 }
 291
 292 /* Display stats on file or archive member ABFD.  */
 293
 294 static void
 295 display_bfd (bfd *abfd)
 296 {
 297   char **matching;
 298
 299   if (bfd_check_format (abfd, bfd_archive))
 300     /* An archive within an archive.  */
 301     return;
 302
 303   if (bfd_check_format_matches (abfd, bfd_object, &matching))
 304     {
 305       print_sizes (abfd);
 306       printf ("\n");
 307       return;
 308     }
 309
 310   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 311     {
 312       bfd_nonfatal (bfd_get_filename (abfd));
 313       list_matching_formats (matching);
 314       free (matching);
 315       return_code = 3;
 316       return;
 317     }
 318
 319   if (bfd_check_format_matches (abfd, bfd_core, &matching))
 320     {
 321       const char *core_cmd;
 322
 323       print_sizes (abfd);
 324       fputs (" (core file", stdout);
 325
 326       core_cmd = bfd_core_file_failing_command (abfd);
 327       if (core_cmd)
 328         printf (" invoked as %s", core_cmd);
 329
 330       puts (")\n");
 331       return;
 332     }
 333
 334   bfd_nonfatal (bfd_get_filename (abfd));
 335
 336   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 337     {
 338       list_matching_formats (matching);
 339       free (matching);
 340     }
 341
 342   return_code = 3;
 343 }
 344
 345 static void
 346 display_archive (bfd *file)
 347 {
 348   bfd *arfile = (bfd *) NULL;
 349   bfd *last_arfile = (bfd *) NULL;
 350
 351   for (;;)
 352     {
 353       bfd_set_error (bfd_error_no_error);
 354
 355       arfile = bfd_openr_next_archived_file (file, arfile);
 356       if (arfile == NULL)
 357         {
 358           if (bfd_get_error () != bfd_error_no_more_archived_files)
 359             {
 360               bfd_nonfatal (bfd_get_filename (file));
 361               return_code = 2;
 362             }
 363           break;
 364         }
 365
 366       display_bfd (arfile);
 367
 368       if (last_arfile != NULL)
 369         bfd_close (last_arfile);
 370       last_arfile = arfile;
 371     }
 372
 373   if (last_arfile != NULL)
 374     bfd_close (last_arfile);
 375 }
 376
 377 static void
 378 display_file (char *filename)
 379 {
 380   bfd *file;
 381
 382   if (get_file_size (filename) < 1)
 383     {
 384       return_code = 1;
 385       return;
 386     }
 387
 388   file = bfd_openr (filename, target);
 389   if (file == NULL)
 390     {
 391       bfd_nonfatal (filename);
 392       return_code = 1;
 393       return;
 394     }
 395
 396   if (bfd_check_format (file, bfd_archive))
 397     display_archive (file);
 398   else
 399     display_bfd (file);
 400
 401   if (!bfd_close (file))
 402     {
 403       bfd_nonfatal (filename);
 404       return_code = 1;
 405       return;
 406     }
 407 }
 408 \f
 409 /* This is what lexical functions are for.  */
 410
 411 static int
 412 size_number (bfd_size_type num)
 413 {
 414   char buffer[40];
 415
 416   sprintf (buffer,
 417            (radix == decimal ? "%lu" :
 418            ((radix == octal) ? "0%lo" : "0x%lx")),
 419            (unsigned long) num);
 420
 421   return strlen (buffer);
 422 }
 423
 424 static void
 425 rprint_number (int width, bfd_size_type num)
 426 {
 427   char buffer[40];
 428
 429   sprintf (buffer,
 430            (radix == decimal ? "%lu" :
 431            ((radix == octal) ? "0%lo" : "0x%lx")),
 432            (unsigned long) num);
 433
 434   printf ("%*s", width, buffer);
 435 }
 436
 437 static bfd_size_type bsssize;
 438 static bfd_size_type datasize;
 439 static bfd_size_type textsize;
 440
 441 static void
 442 berkeley_sum (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
 443               void *ignore ATTRIBUTE_UNUSED)
 444 {
 445   flagword flags;
 446   bfd_size_type size;
 447
 448   flags = bfd_get_section_flags (abfd, sec);
 449   if ((flags & SEC_ALLOC) == 0)
 450     return;
 451
 452   size = bfd_get_section_size (sec);
 453   if ((flags & SEC_CODE) != 0 || (flags & SEC_READONLY) != 0)
 454     textsize += size;
 455   else if ((flags & SEC_HAS_CONTENTS) != 0)
 456     datasize += size;
 457   else
 458     bsssize += size;
 459 }
 460
 461 static void
 462 print_berkeley_format (bfd *abfd)
 463 {
 464   static int files_seen = 0;
 465   bfd_size_type total;
 466
 467   bsssize = 0;
 468   datasize = 0;
 469   textsize = 0;
 470
 471   bfd_map_over_sections (abfd, berkeley_sum, NULL);
 472
 473   bsssize += common_size;
 474   if (files_seen++ == 0)
 475     puts ((radix == octal) ? "   text\t   data\t    bss\t    oct\t    hex\tfilename" :
 476           "   text\t   data\t    bss\t    dec\t    hex\tfilename");
 477
 478   total = textsize + datasize + bsssize;
 479
 480   if (show_totals)
 481     {
 482       total_textsize += textsize;
 483       total_datasize += datasize;
 484       total_bsssize  += bsssize;
 485     }
 486
 487   rprint_number (7, textsize);
 488   putchar ('\t');
 489   rprint_number (7, datasize);
 490   putchar ('\t');
 491   rprint_number (7, bsssize);
 492   printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 493           (unsigned long) total, (unsigned long) total);
 494
 495   fputs (bfd_get_filename (abfd), stdout);
 496
 497   if (bfd_my_archive (abfd))
 498     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (abfd)));
 499 }
 500
 501 /* I REALLY miss lexical functions! */
 502 bfd_size_type svi_total = 0;
 503 bfd_vma svi_maxvma = 0;
 504 int svi_namelen = 0;
 505 int svi_vmalen = 0;
 506 int svi_sizelen = 0;
 507
 508 static void
 509 sysv_internal_sizer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 510                      void *ignore ATTRIBUTE_UNUSED)
 511 {
 512   bfd_size_type size = bfd_section_size (file, sec);
 513
 514   if (   ! bfd_is_abs_section (sec)
 515       && ! bfd_is_com_section (sec)
 516       && ! bfd_is_und_section (sec))
 517     {
 518       int namelen = strlen (bfd_section_name (file, sec));
 519
 520       if (namelen > svi_namelen)
 521         svi_namelen = namelen;
 522
 523       svi_total += size;
 524
 525       if (bfd_section_vma (file, sec) > svi_maxvma)
 526         svi_maxvma = bfd_section_vma (file, sec);
 527     }
 528 }
 529
 530 static void
 531 sysv_one_line (const char *name, bfd_size_type size, bfd_vma vma)
 532 {
 533   printf ("%-*s   ", svi_namelen, name);
 534   rprint_number (svi_sizelen, size);
 535   printf ("   ");
 536   rprint_number (svi_vmalen, vma);
 537   printf ("\n");
 538 }
 539
 540 static void
 541 sysv_internal_printer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 542                        void *ignore ATTRIBUTE_UNUSED)
 543 {
 544   bfd_size_type size = bfd_section_size (file, sec);
 545
 546   if (   ! bfd_is_abs_section (sec)
 547       && ! bfd_is_com_section (sec)
 548       && ! bfd_is_und_section (sec))
 549     {
 550       svi_total += size;
 551
 552       sysv_one_line (bfd_section_name (file, sec),
 553                      size,
 554                      bfd_section_vma (file, sec));
 555     }
 556 }
 557
 558 static void
 559 print_sysv_format (bfd *file)
 560 {
 561   /* Size all of the columns.  */
 562   svi_total = 0;
 563   svi_maxvma = 0;
 564   svi_namelen = 0;
 565   bfd_map_over_sections (file, sysv_internal_sizer, NULL);
 566   if (show_common)
 567     {
 568       if (svi_namelen < (int) sizeof ("*COM*") - 1)
 569         svi_namelen = sizeof ("*COM*") - 1;
 570       svi_total += common_size;
 571     }
 572
 573   svi_vmalen = size_number ((bfd_size_type)svi_maxvma);
 574
 575   if ((size_t) svi_vmalen < sizeof ("addr") - 1)
 576     svi_vmalen = sizeof ("addr")-1;
 577
 578   svi_sizelen = size_number (svi_total);
 579   if ((size_t) svi_sizelen < sizeof ("size") - 1)
 580     svi_sizelen = sizeof ("size")-1;
 581
 582   svi_total = 0;
 583   printf ("%s  ", bfd_get_filename (file));
 584
 585   if (bfd_my_archive (file))
 586     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (file)));
 587
 588   printf (":\n%-*s   %*s   %*s\n", svi_namelen, "section",
 589           svi_sizelen, "size", svi_vmalen, "addr");
 590
 591   bfd_map_over_sections (file, sysv_internal_printer, NULL);
 592   if (show_common)
 593     {
 594       svi_total += common_size;
 595       sysv_one_line ("*COM*", common_size, 0);
 596     }
 597
 598   printf ("%-*s   ", svi_namelen, "Total");
 599   rprint_number (svi_sizelen, svi_total);
 600   printf ("\n\n");
 601 }
 602
 603 static void
 604 print_sizes (bfd *file)
 605 {
 606   if (show_common)
 607     calculate_common_size (file);
 608   if (berkeley_format)
 609     print_berkeley_format (file);
 610   else
 611     print_sysv_format (file);
 612 }