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 2 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, MA 02110-1301, USA.  */
  20 \f
  21 /* Extensions/incompatibilities:
  22    o - BSD output has filenames at the end.
  23    o - BSD output can appear in different radicies.
  24    o - SysV output has less redundant whitespace.  Filename comes at end.
  25    o - SysV output doesn't show VMA which is always the same as the PMA.
  26    o - We also handle core files.
  27    o - We also handle archives.
  28    If you write shell scripts which manipulate this info then you may be
  29    out of luck; there's no --compatibility or --pedantic option.  */
  30
  31 #include "sysdep.h"
  32 #include "bfd.h"
  33 #include "libiberty.h"
  34 #include "getopt.h"
  35 #include "bucomm.h"
  36
  37 #ifndef BSD_DEFAULT
  38 #define BSD_DEFAULT 1
  39 #endif
  40
  41 /* Program options.  */
  42
  43 enum
  44   {
  45     decimal, octal, hex
  46   }
  47 radix = decimal;
  48
  49 /* 0 means use AT&T-style output.  */
  50 static int berkeley_format = BSD_DEFAULT;
  51
  52 int show_version = 0;
  53 int show_help = 0;
  54 int show_totals = 0;
  55
  56 static bfd_size_type total_bsssize;
  57 static bfd_size_type total_datasize;
  58 static bfd_size_type total_textsize;
  59
  60 /* Program exit status.  */
  61 int return_code = 0;
  62
  63 static char *target = NULL;
  64
  65 /* Static declarations.  */
  66
  67 static void usage (FILE *, int);
  68 static void display_file (char *);
  69 static void display_bfd (bfd *);
  70 static void display_archive (bfd *);
  71 static int size_number (bfd_size_type);
  72 static void rprint_number (int, bfd_size_type);
  73 static void print_berkeley_format (bfd *);
  74 static void sysv_internal_sizer (bfd *, asection *, void *);
  75 static void sysv_internal_printer (bfd *, asection *, void *);
  76 static void print_sysv_format (bfd *);
  77 static void print_sizes (bfd * file);
  78 static void berkeley_sum (bfd *, sec_ptr, void *);
  79 \f
  80 static void
  81 usage (FILE *stream, int status)
  82 {
  83   fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
  84   fprintf (stream, _(" Displays the sizes of sections inside binary files\n"));
  85   fprintf (stream, _(" If no input file(s) are specified, a.out is assumed\n"));
  86   fprintf (stream, _(" The options are:\n\
  87   -A|-B     --format={sysv|berkeley}  Select output style (default is %s)\n\
  88   -o|-d|-x  --radix={8|10|16}         Display numbers in octal, decimal or hex\n\
  89   -t        --totals                  Display the total sizes (Berkeley only)\n\
  90             --target=<bfdname>        Set the binary file format\n\
  91             @<file>                   Read options from <file>\n\
  92   -h        --help                    Display this information\n\
  93   -v        --version                 Display the program's version\n\
  94 \n"),
  95 #if BSD_DEFAULT
  96   "berkeley"
  97 #else
  98   "sysv"
  99 #endif
 100 );
 101   list_supported_targets (program_name, stream);
 102   if (REPORT_BUGS_TO[0] && status == 0)
 103     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
 104   exit (status);
 105 }
 106
 107 static struct option long_options[] =
 108 {
 109   {"format", required_argument, 0, 200},
 110   {"radix", required_argument, 0, 201},
 111   {"target", required_argument, 0, 202},
 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 200:         /* --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 202:         /* --target */
 165         target = optarg;
 166         break;
 167
 168       case 201:         /* --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 /* Display stats on file or archive member ABFD.  */
 260
 261 static void
 262 display_bfd (bfd *abfd)
 263 {
 264   char **matching;
 265
 266   if (bfd_check_format (abfd, bfd_archive))
 267     /* An archive within an archive.  */
 268     return;
 269
 270   if (bfd_check_format_matches (abfd, bfd_object, &matching))
 271     {
 272       print_sizes (abfd);
 273       printf ("\n");
 274       return;
 275     }
 276
 277   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 278     {
 279       bfd_nonfatal (bfd_get_filename (abfd));
 280       list_matching_formats (matching);
 281       free (matching);
 282       return_code = 3;
 283       return;
 284     }
 285
 286   if (bfd_check_format_matches (abfd, bfd_core, &matching))
 287     {
 288       const char *core_cmd;
 289
 290       print_sizes (abfd);
 291       fputs (" (core file", stdout);
 292
 293       core_cmd = bfd_core_file_failing_command (abfd);
 294       if (core_cmd)
 295         printf (" invoked as %s", core_cmd);
 296
 297       puts (")\n");
 298       return;
 299     }
 300
 301   bfd_nonfatal (bfd_get_filename (abfd));
 302
 303   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 304     {
 305       list_matching_formats (matching);
 306       free (matching);
 307     }
 308
 309   return_code = 3;
 310 }
 311
 312 static void
 313 display_archive (bfd *file)
 314 {
 315   bfd *arfile = (bfd *) NULL;
 316   bfd *last_arfile = (bfd *) NULL;
 317
 318   for (;;)
 319     {
 320       bfd_set_error (bfd_error_no_error);
 321
 322       arfile = bfd_openr_next_archived_file (file, arfile);
 323       if (arfile == NULL)
 324         {
 325           if (bfd_get_error () != bfd_error_no_more_archived_files)
 326             {
 327               bfd_nonfatal (bfd_get_filename (file));
 328               return_code = 2;
 329             }
 330           break;
 331         }
 332
 333       display_bfd (arfile);
 334
 335       if (last_arfile != NULL)
 336         bfd_close (last_arfile);
 337       last_arfile = arfile;
 338     }
 339
 340   if (last_arfile != NULL)
 341     bfd_close (last_arfile);
 342 }
 343
 344 static void
 345 display_file (char *filename)
 346 {
 347   bfd *file;
 348
 349   if (get_file_size (filename) < 1)
 350     {
 351       return_code = 1;
 352       return;
 353     }
 354
 355   file = bfd_openr (filename, target);
 356   if (file == NULL)
 357     {
 358       bfd_nonfatal (filename);
 359       return_code = 1;
 360       return;
 361     }
 362
 363   if (bfd_check_format (file, bfd_archive))
 364     display_archive (file);
 365   else
 366     display_bfd (file);
 367
 368   if (!bfd_close (file))
 369     {
 370       bfd_nonfatal (filename);
 371       return_code = 1;
 372       return;
 373     }
 374 }
 375 \f
 376 /* This is what lexical functions are for.  */
 377
 378 static int
 379 size_number (bfd_size_type num)
 380 {
 381   char buffer[40];
 382
 383   sprintf (buffer,
 384            (radix == decimal ? "%lu" :
 385            ((radix == octal) ? "0%lo" : "0x%lx")),
 386            (unsigned long) num);
 387
 388   return strlen (buffer);
 389 }
 390
 391 static void
 392 rprint_number (int width, bfd_size_type num)
 393 {
 394   char buffer[40];
 395
 396   sprintf (buffer,
 397            (radix == decimal ? "%lu" :
 398            ((radix == octal) ? "0%lo" : "0x%lx")),
 399            (unsigned long) num);
 400
 401   printf ("%*s", width, buffer);
 402 }
 403
 404 static bfd_size_type bsssize;
 405 static bfd_size_type datasize;
 406 static bfd_size_type textsize;
 407
 408 static void
 409 berkeley_sum (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
 410               void *ignore ATTRIBUTE_UNUSED)
 411 {
 412   flagword flags;
 413   bfd_size_type size;
 414
 415   flags = bfd_get_section_flags (abfd, sec);
 416   if ((flags & SEC_ALLOC) == 0)
 417     return;
 418
 419   size = bfd_get_section_size (sec);
 420   if ((flags & SEC_CODE) != 0 || (flags & SEC_READONLY) != 0)
 421     textsize += size;
 422   else if ((flags & SEC_HAS_CONTENTS) != 0)
 423     datasize += size;
 424   else
 425     bsssize += size;
 426 }
 427
 428 static void
 429 print_berkeley_format (bfd *abfd)
 430 {
 431   static int files_seen = 0;
 432   bfd_size_type total;
 433
 434   bsssize = 0;
 435   datasize = 0;
 436   textsize = 0;
 437
 438   bfd_map_over_sections (abfd, berkeley_sum, NULL);
 439
 440   if (files_seen++ == 0)
 441     puts ((radix == octal) ? "   text\t   data\t    bss\t    oct\t    hex\tfilename" :
 442           "   text\t   data\t    bss\t    dec\t    hex\tfilename");
 443
 444   total = textsize + datasize + bsssize;
 445
 446   if (show_totals)
 447     {
 448       total_textsize += textsize;
 449       total_datasize += datasize;
 450       total_bsssize  += bsssize;
 451     }
 452
 453   rprint_number (7, textsize);
 454   putchar ('\t');
 455   rprint_number (7, datasize);
 456   putchar ('\t');
 457   rprint_number (7, bsssize);
 458   printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 459           (unsigned long) total, (unsigned long) total);
 460
 461   fputs (bfd_get_filename (abfd), stdout);
 462
 463   if (bfd_my_archive (abfd))
 464     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (abfd)));
 465 }
 466
 467 /* I REALLY miss lexical functions! */
 468 bfd_size_type svi_total = 0;
 469 bfd_vma svi_maxvma = 0;
 470 int svi_namelen = 0;
 471 int svi_vmalen = 0;
 472 int svi_sizelen = 0;
 473
 474 static void
 475 sysv_internal_sizer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 476                      void *ignore ATTRIBUTE_UNUSED)
 477 {
 478   bfd_size_type size = bfd_section_size (file, sec);
 479
 480   if (   ! bfd_is_abs_section (sec)
 481       && ! bfd_is_com_section (sec)
 482       && ! bfd_is_und_section (sec))
 483     {
 484       int namelen = strlen (bfd_section_name (file, sec));
 485
 486       if (namelen > svi_namelen)
 487         svi_namelen = namelen;
 488
 489       svi_total += size;
 490
 491       if (bfd_section_vma (file, sec) > svi_maxvma)
 492         svi_maxvma = bfd_section_vma (file, sec);
 493     }
 494 }
 495
 496 static void
 497 sysv_internal_printer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 498                        void *ignore ATTRIBUTE_UNUSED)
 499 {
 500   bfd_size_type size = bfd_section_size (file, sec);
 501
 502   if (   ! bfd_is_abs_section (sec)
 503       && ! bfd_is_com_section (sec)
 504       && ! bfd_is_und_section (sec))
 505     {
 506       svi_total += size;
 507
 508       printf ("%-*s   ", svi_namelen, bfd_section_name (file, sec));
 509       rprint_number (svi_sizelen, size);
 510       printf ("   ");
 511       rprint_number (svi_vmalen, bfd_section_vma (file, sec));
 512       printf ("\n");
 513     }
 514 }
 515
 516 static void
 517 print_sysv_format (bfd *file)
 518 {
 519   /* Size all of the columns.  */
 520   svi_total = 0;
 521   svi_maxvma = 0;
 522   svi_namelen = 0;
 523   bfd_map_over_sections (file, sysv_internal_sizer, NULL);
 524   svi_vmalen = size_number ((bfd_size_type)svi_maxvma);
 525
 526   if ((size_t) svi_vmalen < sizeof ("addr") - 1)
 527     svi_vmalen = sizeof ("addr")-1;
 528
 529   svi_sizelen = size_number (svi_total);
 530   if ((size_t) svi_sizelen < sizeof ("size") - 1)
 531     svi_sizelen = sizeof ("size")-1;
 532
 533   svi_total = 0;
 534   printf ("%s  ", bfd_get_filename (file));
 535
 536   if (bfd_my_archive (file))
 537     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (file)));
 538
 539   printf (":\n%-*s   %*s   %*s\n", svi_namelen, "section",
 540           svi_sizelen, "size", svi_vmalen, "addr");
 541
 542   bfd_map_over_sections (file, sysv_internal_printer, NULL);
 543
 544   printf ("%-*s   ", svi_namelen, "Total");
 545   rprint_number (svi_sizelen, svi_total);
 546   printf ("\n\n");
 547 }
 548
 549 static void
 550 print_sizes (bfd *file)
 551 {
 552   if (berkeley_format)
 553     print_berkeley_format (file);
 554   else
 555     print_sysv_format (file);
 556 }